• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:ES2748450T9
    申请号:ES12854752T
    申请日:2012-11-22
    公开日:2020-08-18
    发明作者:Hiroyuki Higashino；Yukio Nakashima；Shigetoshi Ipposhi
    申请人:Mitsubishi Electric Corp；
    IPC主号:
    专利说明:

    [0001] Cooling device for a device arranged under the floor for a vehicle
    [0002] Countryside
    [0003] The present invention relates to a cooling device for a device arranged under the floor for a vehicle, which cools a device installed under the floor of a vehicle.
    [0004] Background
    [0005] Japanese Patent Document No. JP 2000 092819 A refers to a semiconductor cooling apparatus, the cooling performance of which is improved by efficiently utilizing the wind generated when a railway rolling stock is in operation. A device arranged under the floor for a vehicle, installed under the floor of a rail vehicle, is naturally cooled when the vehicle stops and is cooled using the wind created by walking when the vehicle is traveling. Therefore, to perform a highly efficient cooling of a device arranged under the floor for a vehicle, it is necessary to have a structure with which the flow of natural cooling air is not disturbed and with which the created wind can be absorbed. by walking efficiently.
    [0006] For example, Patent Publication 1 describes a method of cooling a reactor, using a guide to absorb a wind in an efficient way. Furthermore, Patent Publication 2 describes a refrigerant using a U-shaped cooling tube, in which a baffle plate is provided around the U-shaped cooling tube.
    [0007] Appointment list
    [0008] Patent Publications
    [0009] Patent Publication 1: Japanese Utility Model Publication Open to Public Inspection No. S55-47749 Patent Publication 2: Japanese Patent Application Open to Public Inspection No. H11-189153
    [0010] Summary
    [0011] Technical problem
    [0012] However, in Patent Publication 1, there is a problem, because as the outer periphery of the cylindrical winding to be cooled is covered, the pressure loss increases; therefore the air flow decreases and cooling capacity is lost. Furthermore, according to this cooling method, because the outer periphery of the cylindrical winding to be cooled is covered, the cooling efficiency when the vehicle is stationary is very poor.
    [0013] Furthermore, in Patent Publication 2, there is a problem that almost all the wind created by walking flows into the penetration zone of the U-shaped cooling tube and the wind created by walking does not flow into the cooling tube. If a deflector plate is installed in the penetration zone, the pressure loss increases and the wind created by walking hardly flows into the cooling tube. Furthermore, when the baffle plate is in its attached state, the flow that, by natural convection, goes from the lower face to the upper face of the U-shaped cooling tube is interrupted when the vehicle is stationary. Therefore the cooling capacity when the vehicle is stationary decreases. In addition, generally, to protect the cooler from chipping gravel or the like, a cooler cover arranged under the floor is provided, which is not shown in Patent Publication 2. If such a cover is provided for the cooler of the Patent publication 2, there is a problem that a gap is generally formed between the cover and the cooler due to tolerance for precision in the manufacture of the components or the like and part of the wind created by walking that flows into the interior of the cover escapes through the gap, thus deteriorating the cooling performance.
    [0014] In view of the above, the present invention has been achieved and an object of the present invention is to provide a cooling device for a device arranged under the floor for a vehicle that can effectively introduce the wind created by walking into the cooling device. installed under the floor of the vehicle and has excellent cooling capacity.
    [0015] Solution to the problem
    [0016] To solve the above problems and achieve the objects, a cooling device with the features of claim 1 is proposed. Embodiments of the invention are defined in the dependent claims.
    [0017] of the foregoing and an object of the present invention is to provide a cooling device for a device arranged under the floor for a vehicle, capable of efficiently absorbing the wind created by walk to the cooling device installed under the floor of the vehicle and has excellent cooling capacity.
    [0018] Solution to the problem
    [0019] To solve the above problems and achieve the object, a cooling device for a device arranged under the floor of a vehicle according to the present invention is a cooling device for a device arranged under the floor of a vehicle, which has been placed under the floor of a vehicle and that cools a device arranged under the floor, which is located under the floor of the vehicle, by using the wind created by walking, generated by the vehicle's travel, as a cooling wind; the device includes a base plate, on the side of the rear surface to which the device arranged under the floor is connected; a heat-radiating unit, which is connected to the front surface side of the base plate and radiates the heat conducted from the device arranged under the floor through the base plate; a cover that surrounds the heat-radiating unit and includes a side opening, capable of allowing the wind created by walking to flow towards it and the wind created by walking that has entered it to leave there, on opposite side surfaces, oriented in the direction vehicle displacement; and a guide plate, which guides the wind created by walking that enters from the side opening towards the heat radiating unit by blocking at least part of a gap area between a surface connecting the opposite side surfaces of the cover and the heat radiating unit; the guide plate is provided in a lateral separation area between a lateral surface of the cover and the heat radiating unit, from the side from which the wind created by walking enters.
    [0020] Advantageous effects of the invention
    [0021] According to the present invention, the effect is achieved when it is possible to obtain the cooling device for a device arranged under the floor of a vehicle, capable of efficiently absorbing the wind created when walking towards the cooling device installed under the vehicle floor and that has an excellent cooling capacity, suitable for efficiently cooling a part that must lose temperature, such as an electronic device.
    [0022] Brief description of the drawings
    [0023] Figure 1-1 is a perspective view of a schematic configuration of a cooling device for a device arranged under the floor of a vehicle, according to a first embodiment of the present invention.
    [0024] Figure 1-2 is a longitudinal sectional view taken along the line AA in Figure 1-1, showing a schematic configuration of the cooling device for a device arranged under the floor of a vehicle, according to the first embodiment of the present invention.
    [0025] Figure 1-3 is a longitudinal sectional view taken along the line BB in Figure 1-1, showing a schematic configuration of the cooling device for a device arranged under the floor of a vehicle, according to the first embodiment of the present invention.
    [0026] Figure 1-4 is a cross-sectional view taken along the line CC in Figure 1-1, showing a schematic configuration of the cooling device for a device arranged under the floor of a vehicle, according to the first embodiment of the present invention.
    [0027] Figure 2-1 is a perspective view of a schematic configuration of a conventional cooling device for a device arranged under the floor of a vehicle.
    [0028] Figure 2-2 is a longitudinal sectional view taken along line D-D in Figure 2-1, depicting a schematic configuration of the conventional cooling device for a device arranged under the floor of a vehicle.
    [0029] Figure 2-3 is a longitudinal sectional view taken along the line E-E in Figure 2-1, showing a schematic configuration of the conventional cooling device for a device arranged under the floor of a vehicle.
    [0030] Figure 2-4 is a cross-sectional view taken along line F-F in Figure 2-1, depicting a schematic configuration of the conventional cooling device for a device arranged under the floor of a vehicle.
    [0031] Figure 3-1 is a longitudinal sectional view corresponding to Figure 1-3, showing a schematic configuration of a cooling device for a device arranged under the floor of a vehicle according to a second embodiment of the present invention.
    [0032] Figure 3-2 is a cross-sectional view corresponding to Figure 1-4, showing a schematic configuration of the cooling device for a device arranged under the floor of a vehicle according to with the second embodiment of the present invention.
    [0033] Figure 4-1 is a longitudinal sectional view corresponding to Figure 1-3, showing a schematic configuration of a cooling device for a device arranged under the floor of a vehicle according to a third embodiment of the present invention.
    [0034] Fig. 4-2 is a cross-sectional view corresponding to Fig. 1-4, showing a schematic configuration of the cooling device for a device arranged under the floor of a vehicle according to the third embodiment of the present invention.
    [0035] Figure 5-1 is a longitudinal sectional view corresponding to Figure 1-2, showing a schematic configuration of a cooling device for a device arranged under the floor of a vehicle according to a fourth embodiment of the present invention.
    [0036] Fig. 5-2 is a cross-sectional view corresponding to Fig. 1-4, showing a schematic configuration of the cooling device for a device arranged under the floor of a vehicle according to the fourth embodiment of the present invention.
    [0037] Figure 6 is a longitudinal sectional view corresponding to Figure 1-2, showing a schematic configuration of a cooling device for a device arranged under the floor of a vehicle according to a fifth embodiment of the present invention.
    [0038] Figure 7 is a longitudinal sectional view corresponding to Figure 1-2, showing a schematic configuration of a cooling device for a device arranged under the floor of a vehicle according to a sixth embodiment of the present invention.
    [0039] Figure 8-1 is a longitudinal sectional view corresponding to Figure 1-3, showing a modification of a guide plate in accordance with the present invention.
    [0040] Figure 8-2 is a longitudinal cross-sectional view corresponding to Figure 1-3, showing a modification of the guide plate in accordance with the present invention.
    [0041] Figure 9-1 is a longitudinal sectional view corresponding to Figure 1-3, depicting a modification of the guide plate in accordance with the present invention.
    [0042] Figure 9-2 is a longitudinal sectional view corresponding to Figure 1-3, showing a modification of the guide plate according to the present invention.
    [0043] Description of the achievements
    [0044] Next, exemplary embodiments of a cooling device for a device arranged under the floor of a vehicle according to the present invention will be explained in detail with reference to the drawings. The present invention is not limited to the following description and may be modified as appropriate, without departing from the scope of the present invention. In the drawings explained below, for ease of understanding, the scales of the respective parts may be shown differently from the actual scales. This is valid for the relationships between the drawings.
    [0045] First realization.
    [0046] Figures 1-1 to 1-4 represent a schematic configuration of a cooling device 1, for a device arranged under the floor of a vehicle, according to a first embodiment of the present invention. Figure 1-1 is a perspective view, Figure 1-2 is a longitudinal section view taken along the line AA in Figure 1-1, Figure 1-3 is a longitudinal section view taken through along line BB in Figure 1-1, and Figure 1-4 is a cross-sectional view taken along line CC in Figure 1-1. The cooling device 1 for a device arranged under the floor of a vehicle is a cooling device for a device arranged under the floor of a vehicle that has been placed under the floor of the vehicle, to cool the device arranged under the floor that is It has been placed under the floor of the vehicle, taking advantage of the wind created by walking that is generated when the vehicle is moving, as a cooling wind. In the cooling device 1 for a device arranged under the floor of a vehicle according to the first embodiment, an electronic component 4, such as a device arranged under the floor that is a part to be cooled, is connected on the surface side rear of a base plate 3 as a heat conducting plate, and a refrigerant 2, which is a thermoradiating unit, is connected on the side of the front surface (the surface opposite the surface to which the electronic component 4 is connected) of the base plate 3. A cover 5 is attached to the front surface side of the base plate 3 to cover the refrigerant 2.
    [0047] The coolant 2 includes a plurality of heat conductive bars 2b, provided such that they protrude towards the side of the front surface of the base plate 3, and a plurality of plate-like fins 2a, having a substantially rectangular shape, attached to the heat conducting bars 2b. Heat conductive bars 2b are arranged in a matrix on the other side of the surface of the base plate 3, in a state that protrudes at a predetermined angle with respect to the flat direction of the base plate 3. Each of the fins 2a includes a plurality of through holes, corresponding to the base plate arrangement 3. The heat-conducting bars 2b are inserted into the through-holes, so that the fins 2a are fixed at predetermined intervals, in the extension direction of the heat-conducting bars 2b in a state where their main surfaces are inclined at a predetermined angle with respect to the flat direction of the base plate 3. The fins 2a and the heat conducting bars 2b are made of a material having a high thermal conductivity.
    [0048] On one side, a side opening 5a is provided, having a plurality of openings arranged substantially in a matrix and on the other side the cover 5. The side opening 5a is divided into a plurality of areas by a rib 6. An opening The front 5b having a plurality of openings arranged substantially in a matrix is provided on the front surface of the cover 5. The front opening 5b is divided into a plurality of areas by the rib 6. Partially large openings 5c are provided on the surface. front of the cover 5. On the cover 5, the surface arranged substantially vertical to the direction of travel of the vehicle (a direction of travel 8a or a direction of travel 8b) is called the side surface, and the surface substantially parallel to the direction of travel. vehicle travel (travel direction 8a or travel direction 8b) and opposite to the base plate 3 s e called the front surface.
    [0049] An upper opening 5d having a plurality of openings arranged substantially in a matrix, is provided in the upper surface of the cover 5. The upper opening 5d is divided into a plurality of areas, by the rib 6. The lower part of the front of the front surface of the cover 5 is an inclined surface, which is inclined towards the direction of the base plate 3, as if descending, and the inclined surface is provided with an oblique opening 5e having a plurality of openings arranged substantially in a matrix. The oblique opening 5e is divided into a plurality of areas by the rib 6. A lower opening 5f, having a plurality of openings arranged substantially in a matrix, is provided in the lower surface of the cover 5. The lower opening 5f is divided in a plurality of areas by a rib (not shown). The cooling device 1 for a device arranged under the floor of a vehicle as described above, is fixed under the floor of a railway vehicle through a connecting piece (not shown).
    [0050] The cooling device 1 for a device arranged under the floor of a vehicle cools the electronic component 4, using part of the wind created by walking generated by the vehicle's journey, as a cooling wind. Therefore, the side openings 5a described above are provided on the opposite side surfaces in the direction of travel of the vehicle. In the direction of travel of the vehicle (the direction of travel 8a or the direction of travel 8b), the side opening 5a on the front side becomes an inlet for introducing the cooling wind into the cooling device 1 for a device arranged under the floor of a vehicle, and the side opening 5a on the rear side becomes an outlet for discharging the cooling wind introduced into the cooling device 1 for a device arranged under the floor of a vehicle.
    [0051] The cooling operation of the cooling device 1 is now explained for a device arranged under the floor of a vehicle configured as described above. The heat generated in the electronic component 4 is conducted through the base plate and transported to the coolant 2. That is, the heat generated in the electronic component 4 is transported to the fins 2a through the base plate 3 and the heat conducting bars 2b. Therefore, the temperature in refrigerant 2 is generally higher than the outside air temperature. Because the fins 2a are formed in the coolant 2, when air (cooling wind) passes through the interior of the coolant 2, heat exchange takes place between the fins 2a and the air. The shape of the fins 2a is not particularly limited to a plate shape. Aluminum is generally used as the material of the fins 2a; however, the material has no particular limitations as long as it has a high thermal conductivity.
    [0052] When the vehicle is traveling, after the cooling wind introduced from the side opening 5a, which constitutes the inlet, is guided towards the coolant 2 to cool the fins 2a and the heat conducting bars 2b connected to the base plate 3 , said cooling wind is discharged from the side opening 5a, which constitutes the outlet. By changing the direction of travel of the vehicle, the flow of the cooling wind also shifts in an opposite direction, and the definition of the inlet and outlet is reversed.
    [0053] Meanwhile, when the vehicle is stopped, there is no wind created when riding. However, in this case, the fins 2a and the heat conducting bars 2b are naturally cooled by the natural wind 12, which is the air that passes through the coolant 2 in the cooling device 1, for a device arranged below the floor of a vehicle from the lower opening 5f in the lower surface of the cover 5 and flowing outwards, from the upper opening 5d in the upper surface of the cover 5.
    [0054] Generally, there is a gap between the cover and the coolant due to the tolerance of the machining precision of the components or the like. In this case, part of a wind created by walking 9 (a wind created by walking 9a or a wind created by walking 9b) introduced into the cooling device 1 for a device arranged below the floor of a vehicle, from the side opening 5a that constitutes the inlet when the vehicle is moving becomes a main flow 10 (a main flow 10a or a main flow 10b), which is the cooling wind that flows into the coolant 2 However, the other part of the wind created by walking 9 becomes a bypass flow, which is diverted to circulate towards an area of separation between the surfaces that connect the opposite side surfaces of the cover 5 and the coolant 2. The The directions of the arrows in Figures 1-1 through 1-4 indicate the flow directions of the respective winds.
    [0056] That is, when the direction of travel of the vehicle is the direction of travel 8a, the wind created by walking is the wind created by walking 9a, in the opposite direction to the direction of travel 8a of the vehicle; the cooling wind flowing towards the coolant 2 is the main flow 10a, in the opposite direction to the direction of travel 8a of the vehicle; and the bypass flow is the bypass flow flowing in the direction opposite to the direction of travel 8a of the vehicle. When the direction of travel of the vehicle is the direction of travel 8b, the wind created by walking is the wind created by walking 9b in the opposite direction to the direction of travel 8b of the vehicle; the cooling wind flowing towards the coolant 2 is the main flow 10b in the direction opposite to the direction of travel 8b of the vehicle; and the bypass flow is the bypass flow flowing in the direction opposite to the direction of travel 8b of the vehicle. When such bypass flows are generated, the air volume of the cooling wind decreases; therefore, the cooling performance for cooling the fins 2a and the heat conducting bars 2b deteriorates.
    [0058] Accordingly, in the cooling device 1 for a device arranged under the floor of a vehicle according to the first embodiment, a guide plate 7 is connected to the area of lateral separation between the lateral surface of the cover 5 that constitutes the inlet and the coolant 2. The guide plate 7 blocks at least part of the gap area between the surfaces that connect the opposite side surfaces of the cover 5 and the coolant 2, to guide the wind created by walking that flows from the side opening 5a towards the coolant 2, near opposite side surfaces of cover 5.
    [0060] In the cooling device 1 for a device arranged under the floor of a vehicle, the guide plate 7 is provided substantially in the shape of a C, to block the area excluding the side of the rear surface (the side of the base plate 3) on the surface vertical to the direction of travel of the vehicle (the direction of travel 8a or the direction of travel 8b), in the area of separation between the surfaces that connect the opposite side surfaces (the upper surface, the surface of the side of the front surface and the bottom surface of the cover 5) and the coolant 2. That is, the guide plate 7 has a substantially C-shape arranged on the upper side, the front surface side and the lower side of the side separation area. . One end of the guide plate 7 of the side of the refrigerant 2 is connected near the angular portion of the side of the side opening 5a of the outer peripheral portion of the refrigerant 2. The other end of the side of the side of the guide plate 7 is connected to the side surface of the tire 5, along a direction that excludes the side of the rear surface from the outermost periphery of the side opening 5a, on the side surface, to take advantage of the wind created by walking in a efficient.
    [0062] The guide plate 7 described above linearly connects the side surface of the cover 5 with the coolant 2. In the direction of travel of the vehicle (the direction of travel 8a or the direction of travel 8b), the guide plate 7 has a shape that it does not cover refrigerant 2 completely. According to the first embodiment, it is preferable that there is no gap between the guide plate 7 and the base plate 3. However, there may be a gap of about one fin pitch.
    [0064] According to the cooling device 1 for a device arranged under the floor of a vehicle that includes the guide plate 7, as described above, the wind created by walking that circulates near the lateral separation area, between the lateral surface of the cover 5, and the refrigerant 2 is guided by the guide plate 7, and flows into the refrigerant 2, without deviating to the gap area between the upper surface, the front surface side surface or the lower surface of the cover 5 and the refrigerant 2. Therefore, most of the wind created by walking absorbed from the side opening 5a when the vehicle is traveling flows into the refrigerant 2, without deviating into the area of separation between the upper surface, the side surface of the front surface or the bottom surface of the cover 5 and the refrigerant 2; consequently, the air volume of the cooling wind increases. Consequently, the electronic component 4 can be cooled efficiently by efficiently cooling the fins 2a and the heat conducting bars 2b. The guide plate 7 is provided here substantially C-shaped. However, by blocking at least part of the gap area between the upper surface, the front surface side surface or the lower surface of the cover 5 and the refrigerant 2 With the guide plate 7, in a vertical plane to the direction of travel (the direction of travel 8a or the direction of travel 8b) of the vehicle, the same effect can be obtained. However, to achieve a sufficient effect, it is preferable to arrange the guide plate 7 as wide as possible.
    [0066] The guide plate 7 does not completely cover the refrigerant 2, and the upper and lower surfaces of the refrigerant 2 are not covered by the guide plate 7. Therefore, the guide plate 7 does not block the flow of air circulating from the lower surface to the upper surface of the cover 5, and the natural cooling of the coolant 2 by the natural wind 12 when the vehicle stops is not hampered. Accordingly, the guide plate 7 does not reduce the cooling capacity when the vehicle is stopped.
    [0067] When manufacturing the cooling device 1 for a device arranged under the floor of a vehicle, the guide plate 7 having such a configuration can be connected in advance to the cover 5 and then fixed to the refrigerant 2, which facilitates its connection . By having a structure in which the guide plate 7 is fixed in advance to the cover 5, it is possible to obtain a structure in which there is no space between the cover 5 and the guide plate 7, thus allowing the wind created by walking be guided in an efficient way.
    [0069] The configuration of a conventional cooling device for a device arranged under the floor of a vehicle is explained here for comparison. Figures 2-1 to 2-4 represent a schematic configuration of a conventional cooling device 101 for a device arranged under the floor of a vehicle. Figure 2-1 is a perspective view (corresponding to Figure 1-1), Figure 2-2 is a longitudinal section view, taken along the line DD in Figure 2-1 (corresponding to the Figure 1-2), Figure 2-3 is a longitudinal sectional view, taken along the line EE in Figure 2-1 (corresponding to Figure 1-3), and Figure 2-4 is a cross-sectional view, taken along line FF in Figure 2-1 (corresponding to Figure 1-4).
    [0071] The structure of the conventional cooling device for a device arranged under the floor of a vehicle is basically the same as that of the cooling device 1 for a device arranged under the floor of a vehicle, according to the first embodiment, except that provides the guide plate 7. That is, in Figures 2-1 to 2-4, the cooling device 101, the fins 102a, the heat conducting bars 102b, a coolant 102, a base plate 103, an electronic component 104 and a cover 105 correspond respectively to the cooling device 1, the fins 2a, the heat conducting bars 2b, the refrigerant 2, the base plate 3, the electronic component 4 and the cover 5 in the cooling device 1 for a device arranged under the floor of a vehicle. The side openings 105a, a front opening 105b, the large openings 105c, an upper opening 105d, an oblique opening 105e, a lower opening 105f and the ribs 106 correspond respectively to the side openings 5a, the front opening 5b, the large openings 5c , the upper opening 5d, the oblique opening 5e, the lower opening 5f and the ribs 6 in the cooling device 1 for a device arranged under the floor of a vehicle. A travel direction 108a, a travel direction 108b, a walking wind 109a, a walking wind 109b, a main flow 110a and a main flow 110b respectively correspond to the travel direction 8a, the travel direction 8b, the wind created by walking 9a, the wind created by walking 9b, the main flow 10a and the main flow 10b in the cooling device 1 for a device arranged under the floor of a vehicle.
    [0072] Next, a cooling operation of the cooling device 101 for a device arranged under the floor for a vehicle configured as described above is explained. The heat generated in the electronic component 104 is transported to the refrigerant 102. That is, the heat generated in the electronic component 104 is transported to the fins 102a, through the base plate 103 and the heat conducting bars 102b. Therefore, the temperature in the refrigerant 102 is generally higher than the outside air temperature. Because a plurality of fins 102a are formed in the coolant 102, when air (cooling wind) passes through the interior of the coolant 102, heat exchange takes place between the fins 102a and the air.
    [0074] When the vehicle is traveling, after the cooling wind introduced from the side opening 105a, which constitutes the inlet, is guided to the coolant 102 to cool the fins 102a and the heat conducting bars 102b attached to the base plate 103, the cooling wind is discharged from the side opening 105a, which constitutes the outlet. When the direction of travel of the vehicle is changed, the flow of the cooling wind also becomes an opposite direction, and the definition of the inlet and outlet is reversed.
    [0075] Meanwhile, when the vehicle stops, there is no wind created when riding. However, in this case, the fins 102a and the heat conducting bars 102b are naturally cooled by the natural wind 112, which is the air that passes through the coolant 102 in the cooling device 101 for a device arranged below the floor. of a vehicle, from the lower opening 105f in the lower surface of the cover 105 and flowing outward from the upper opening 105d in the upper surface of the cover 105.
    [0077] Generally, there is a gap between the cover and the coolant due to the tolerance of the machining precision of the components or the like. In this case, part of a wind created by walking 109 (the wind created by walking 109a or the wind created by walking 109b) introduced into the cooling device 101 for a device arranged under the floor of a vehicle from the side opening 105a, that constitutes the inlet when the vehicle is traveling, it becomes a main flow 110 (main flow 110a or main flow 110b), which is the cooling wind flowing into the coolant 102. However, the other part of the wind created by walking 109 becomes a bypass flow 111 (a bypass flow 111a or a bypass flow 111b) which is diverted to flow toward an area of separation between the surfaces connecting the opposite side surfaces of the cap 105 and coolant 102.
    [0079] That is, when the vehicle travel direction is the travel direction 108a, the wind created by walking is the wind created by walking 109a in the opposite direction of the vehicle travel direction 108a, the cooling wind flowing towards the Coolant 102 is the main flow 110a in the opposite direction to the direction of travel 108a of the vehicle, and the bypass flow is the bypass flow 111a flowing in the direction opposite to the direction of travel 108a of the vehicle and deflecting to flow into an area of separation between the surfaces connecting the opposite side surfaces of the cover 105 and the coolant 102. When the direction of travel of the vehicle is the direction of travel 108b, the wind created by walking is the wind created by walking 109b in the opposite direction to the direction of travel 108b of the vehicle, the cooling wind flowing into the coolant 102 is the main flow 110b in the direction opposite to the direction of travel 108b of the vehicle, and the bypass flow is the bypass flow 111b, which flows in the opposite direction to the direction of travel 108b of the vehicle and is diverted to circulate towards an area of separation between the surfaces connecting the opposite side surfaces of the cover 105 and the coolant 102. The directions of the arrows in the figures s 2-1 to 2-4 indicate the flow directions of the respective winds.
    [0080] When such bypass flows are generated, the air volume of the cooling wind decreases; therefore, the refrigerant performance for cooling the fins 102a and the heat conducting bars 102b deteriorates.
    [0081] However, in the cooling device 1 for a device arranged under the floor of a vehicle according to the first embodiment, by providing the guide plate 7 described above, it is possible to suppress or prevent the generation of a bypass flow for circulating towards the area of separation between the surfaces connecting the opposite side surfaces of the cover 5 and the coolant 2. Most of the wind created by walking absorbed from the side opening 5a when the vehicle is traveling flows into the coolant 2, without deviating towards the area of separation between the surfaces that connect the opposite side surfaces of the cover 5 and the refrigerant 2; therefore, the air volume of the cooling wind increases. Consequently, the electronic component 4 can be cooled in an efficient way, by cooling the fins 2a and the heat conducting bars 2b efficiently.
    [0082] Therefore, according to the cooling device 1 for a device arranged under the floor of a vehicle according to the first embodiment, a wind created by walking towards the refrigerant 2 installed under the floor of the vehicle can be efficiently absorbed. vehicle and therefore the electronic component 4 can be cooled efficiently, both when the vehicle is traveling and when it is stopped.
    [0083] Second realization.
    [0084] In a second embodiment, a modification of the cooling device 1 for a device arranged under the floor of a vehicle is explained, according to the first embodiment. In a cooling device for a device arranged under the floor of a vehicle according to the second embodiment, only the shape of the guide plate 7 is different from the cooling device 1 for a device arranged under the floor of a vehicle according to with the first realization. Accordingly, only the guide plate 7 is explained, and the explanations of other parts will be omitted. Figures 3-1 and 3-2 represent a schematic configuration of the cooling device for a device arranged under the floor of a vehicle, according to the second embodiment of the present invention. Figure 3-1 is a longitudinal section view corresponding to Figure 1-3, and Figure 3-2 is a cross-sectional view corresponding to Figure 1-4.
    [0085] In the cooling device for a device arranged under the floor of a vehicle according to the second embodiment, the guide plate 7, which has a substantially rectangular frame shape, is connected in such a way as to block all directions, even the side of the base plate 3 on the surface (see Figure 3-1) vertical to the direction of travel (the direction of travel 8a or the direction of travel 8b) of the vehicle, of the gap area between the cover 5 and the refrigerant 2 and the gap area between the base plate 3 and the coolant 2. That is, the guide plate 7 has a substantially rectangular frame shape arranged on the upper side, the front surface side, the lower side and the lower side. from the rear surface of the side parting area. One end of the guide plate 7 on the side of the refrigerant 2 is connected near the angle portion at the side opening 5a on the side of the outer peripheral portion of the refrigerant 2. The other end of the side of the side surface of the guide plate 7 is connected to the side surface of the cover 5, so that the side opening 5a is surrounded along the outermost periphery of the side opening 5a on the side surface to use the wind created by walking efficiently. The guide plate 7 as described above is linearly connected between the side surface of the cover 5 and the refrigerant 2 and is shaped such that it does not completely cover the refrigerant 2 in the direction of travel (the direction of travel 8a or the direction of travel 8b) of the vehicle.
    [0086] When manufacturing the cooling device for a device arranged under the floor of a vehicle, the guide plate 7 having such a configuration can be connected to the fins 2a in advance and then the cover 5 can be fixed to cover the coolant 2 , thus facilitating their fixation. By having a structure in which the guide plate 7 is fixed to the fins 2a in advance, it is possible to obtain a structure in which there is no space between the coolant 2 and the guide plate 7, thus allowing the wind created by walking be guided in an efficient way.
    [0087] In the cooling device for a device arranged under the floor of a vehicle according to the second embodiment, including the guide plate 7 as described above, in the area of lateral separation between the lateral surface of the cover 5 and refrigerant 2, by blocking all directions (all the perimeter) including the side of the base plate 3 in the vertical plane to the direction of travel of the vehicle, all wind created by walking absorbed from the side opening 5a when the vehicle is moving flows towards the coolant 2, without being deflected towards the gap area between the refrigerant 2 and the cover 5 and the gap area between the base plate 3 and the refrigerant 2. Consequently, the air volume of the cooling wind is further increased, compared to the cooling device 1 for a device arranged under the floor of a vehicle according to the first embodiment.
    [0088] Therefore, according to the cooling device for a device arranged under the floor of a vehicle of the second embodiment, the electronic component 4 can be further cooled efficiently.
    [0089] Third realization.
    [0090] In a third embodiment, a modification of the cooling device 1 for a device arranged under the floor of a vehicle is explained, according to the first embodiment. In a cooling device for a device arranged under the floor of a vehicle according to the third embodiment, only the shape of the guide plate 7 is different from that of the cooling device 1 for a device arranged under the floor of a vehicle according to the first. realization. Therefore, only the guide plate 7 is explained, and the explanations of the other parts will be omitted. Figures 4-1 and 4-2 represent a schematic configuration of the cooling device for a device arranged under the floor of a vehicle, according to the third embodiment of the present invention. Figure 4-1 is a longitudinal sectional view corresponding to Figure 1-3, and Figure 4-2 is a cross-sectional view corresponding to Figure 1-4.
    [0092] In the cooling device for a device arranged under the floor of a vehicle according to the third embodiment, in the area of lateral separation between the lateral surface of the cover 5 and the coolant 2, the guide plate 7 having a substantially C-shaped, explained in the first embodiment, and additionally an auxiliary guide plate 7a is attached. The auxiliary guide plate 7a is connected to block the gap area between the base plate 3 and the refrigerant 2. The guide plate 7 and the auxiliary guide plate 7a are linearly connected between the side surface of the cover 5 and the refrigerant 2, and they have a shape that does not completely cover the refrigerant 2 in the direction of travel (the direction of travel 8a or the direction of travel 8b) of the vehicle.
    [0093] When manufacturing the cooling device for a device arranged under the floor of a vehicle, such a configuration can be formed by connecting the guide plate 7 to the cover 5 in advance and connecting the auxiliary guide plate 7a to the base plate 3 or to the refrigerant 2 of beforehand, and then, fixing the cap 5 to cover the refrigerant 2, thus facilitating its manufacture.
    [0094] In the cooling device for a device arranged under the floor of a vehicle according to the third embodiment including the guide plate 7 and the auxiliary guide plate 7a, as described above, in the area of lateral separation between the lateral surface of the cover 5 and the coolant 2, by blocking all directions (the entire perimeter), including the side base plate 3 in the vertical plane to the direction of travel of the vehicle, all the wind created by walking absorbed from the side opening 5a when the vehicle is traveling flows into the refrigerant 2, without deviating into the gap area between the refrigerant 2 and the cover 5 and the gap area between the base plate 3 and the refrigerant 2. Consequently, the volume of Cooling wind air is further increased compared to the cooling device 1 for a device arranged under the floor of a vehicle according to the first embodiment.
    [0095] Therefore, according to the cooling device for a device arranged under the floor of a vehicle of the third embodiment, the electronic component 4 can be further cooled efficiently. A gap is generated between the guide plate 7, which is substantially C-shaped, and the auxiliary guide plate 7a due to the tolerance of the machining precision of the components or the like, and it is preferable to reduce the gap as much as possible; more preferably, this space should be eliminated.
    [0096] Fourth realization.
    [0097] In a fourth embodiment, a modification of the cooling devices for a device arranged under the floor of a vehicle according to the first to the third embodiments is explained. In a cooling device for a device arranged under the floor of a vehicle according to the fourth embodiment, only the shape of the guide plate 7 is different from that of the cooling devices for a device arranged under the floor of a vehicle according to the first to the third realizations. Therefore, only the guide plate 7 is explained, and the explanations of other parts will be omitted. Figures 5-1 and 5-2 represent a schematic configuration of the cooling device for a device arranged under the floor of a vehicle, according to the fourth embodiment of the present invention. Figure 5-1 is a longitudinal sectional view corresponding to Figure 1-2, and Figure 5-2 is a cross-sectional view corresponding to Figure 1-4. In Figures 5-1 and 5-2, a modification of the second embodiment is shown.
    [0098] In the cooling device for a device arranged under the floor of a vehicle according to the fourth embodiment, the guide plate 7 is connected between the side surface of the cover 5 and the coolant 2, gradually curved and has a shape that does not completely cover the refrigerant 2 in the direction of travel (the direction of travel 8a or the direction of travel 8b) of the vehicle. According to such a structure, a flow of the wind created by walking (cooling wind) between the side opening 5a and the coolant 2 can be gradually changed, and the effect of suppressing the detachment of the guide plate 7 and suppressing the pressure loss.
    [0099] Therefore, according to the cooling device for a device arranged under the floor of a vehicle according to the fourth embodiment, the electronic component 4 can be cooled efficiently, and the effect of suppressing the detachment can be achieved. guide plate 7 and auxiliary guide plate 7a and suppress pressure loss.
    [0100] Figures 5-1 and 5-2 depict a modification of the second embodiment. However, the modification is also similarly applicable to guide plate 7 and auxiliary guide plate 7a in the first and third embodiments. That is, the shape for the connection between the side surface of the cover 5 and the refrigerant 2 in a gradually curved manner is applicable to any of the following: the guide plate 7, which has a substantially C-shape, as in the first embodiment, wherein the guide plate 7 has a substantially rectangular frame shape, as in the second embodiment, and the guide plate 7 having a substantially C-shape, and the auxiliary guide plate 7a, as in the third embodiment.
    [0102] Fifth realization.
    [0103] In a fifth embodiment, a modification of the cooling devices for a device arranged under the floor of a vehicle is explained, according to the first to third embodiments. In a cooling device for a device arranged under the floor of a vehicle according to the fifth embodiment, only the shape of the guide plate 7 is different from that of the cooling devices for a device arranged under the floor of a vehicle, according to with the first to the third embodiments. Therefore, only the guide plate 7 is explained, and the explanations of other parts will be omitted. Fig. 6 is a longitudinal sectional view corresponding to Fig. 1-2, showing a schematic configuration of the cooling device for a device arranged under the floor of a vehicle, according to the fifth embodiment of the present invention. In Fig. 6, a modification of the second embodiment is shown.
    [0104] In the cooling device for a device arranged under the floor of a vehicle according to the fifth embodiment, the guide plate 7 has an extension portion 7b, which extends from the area of lateral separation between the lateral surface of the cover 5 and the coolant 2 and substantially covering the outer peripheral surface of the fins 2a of the coolant 2, along the direction of travel of the vehicle. The extension portion 7b has a shape that covers part of the outer peripheral surface of the fins 2a. In the extension portion 7b, a hole 13 or a slot is provided as an opening, in a portion along three surfaces, except the side of the front surface of the refrigerant 2, depending on the length (the direction of travel of the train ) of the guide plate 7, which covers the outer peripheral surface of the fins 2a.
    [0105] Generally, part of the cooling wind when the vehicle is traveling comes out from the upper side or the lower side of the refrigerant 2. On the other hand, according to this structure, the generation of the cooling wind coming out of the upper side, from the bottom side or front surface side of the refrigerant 2, and therefore, the electronic component 4 can be cooled more efficiently.
    [0106] By providing the hole 13 or the slot in the portion of the guide plate 7 along all three surfaces except the side of the front surface of the refrigerant 2, the guide plate 7 does not block the flow of air circulating from the surface bottom of the refrigerant 2 to the upper surface of the refrigerant 2, and the natural cooling of the refrigerant 2 by the natural wind 12, when the vehicle stops, is not hampered. Consequently, the guide plate 7 does not reduce the cooling capacity when the vehicle is stopped. When the extension portion 7b covers the length that does not obstruct the natural cooling of the refrigerant 2 by the natural wind 12, or when there is sufficient cooling capacity, even when the natural cooling is obstructed, it is not necessary to provide the hole 13 or the like. .
    [0107] Therefore, according to the cooling device for a device arranged under the floor of a vehicle of the fifth embodiment, the electronic component 4 can be further cooled efficiently. The modification of the second embodiment is shown in Fig. 6. However, the extension portion 7b can be applied to the first and third embodiments. However, because the cooling wind does not come out from the base plate 3 side of the coolant 2, the extension portion 7b in the guide plate 7 and the auxiliary guide plate 7a is not required on the base plate side. base 3.
    [0108] Sixth embodiment.
    [0109] In a sixth embodiment, a modification of the cooling device for a device arranged under the floor of a vehicle is explained, according to the fifth embodiment. In a cooling device for a device arranged under the floor of a vehicle according to the sixth embodiment, only the shape of the guide plate 7 is different from that of the cooling device for a device arranged under the floor of a vehicle, according to the fifth realization. Therefore, only the guide plate 7 is explained, and the explanations of other parts will be omitted. Figure 7 is a longitudinal sectional view corresponding to Figure 1-2, showing a schematic configuration of the cooling device for a device arranged under the floor of a vehicle according to the sixth embodiment of the present invention.
    [0110] In the cooling device for a device arranged under the floor of a vehicle according to the sixth embodiment, the guide plate 7 has a shape connecting between the side surface of the cover 5 and the refrigerant 2 in a gradually curved manner. According to such a structure, a flow of the wind created by walking (cooling wind) between the side opening 5a and the coolant 2 can be changed gradually, and it is possible to achieve the effect of suppressing the detachment of the guide plate 7 and suppressing a pressure loss.
    [0111] Therefore, according to the cooling device for a device arranged under the floor of a vehicle according to the sixth embodiment, the electronic component 4 can be cooled more efficiently and it is possible to achieve the effect of suppressing detachment. guide plate 7 and auxiliary guide plate 7a, in addition to being able to eliminate pressure loss.
    [0112] The guide plate 7 can be made so that it takes on a substantially C-shape, as in the first embodiment, it can be made so that it takes a substantially rectangular frame shape, as in the second embodiment, or it can be formed of the guide plate 7 having a substantially C-shape and the auxiliary guide plate 7a, as in the third embodiment.
    [0113] While embodiments of the present invention have been explained above, such embodiments are exemplary only and the present invention may take other modes. For example, the shape of the cover 5 indicated in the embodiments is only an example. As the shape of the cover 5, for example, there can be used: a shape in which the mesh openings are arranged irregularly, a shape in which the shape of the openings is not rectangular but circular, and a shape in which the number of holes provided in guide plate 7 is larger than that shown in the drawings.
    [0114] The electronic component 4 described above is just an example of the part to be cooled, which constitutes an object to be cooled by the refrigerant 2. The part to be cooled may be a heat generating component, other than the electronic component, or it may be a component that does not generate heat to cool, and the shape of the piece to cool has no particular limitations.
    [0115] Guide plate 7 can be connected anywhere, such as fins 2a and base plate 3, as long as guide plate 7 can be fixed. The guide plate 7 can be fixed by a clamping component, such as a screw, bolt or rivet, or it can be fixed with an adhesive or welding.
    [0116] The number of fins 2a present in the coolant 2 can be any number, as long as the cooling capacity obtained can be sufficient. The height (size) of the fins 2a can be the same or it can be changed step by step in the direction of their arrangement.
    [0117] It is possible to use heat pipes instead of the heat bus bars 2b, and either the heat pipes or the heat bus bars 2b can be used, or they can be combined with each other to use them. The arrangement of the heat pipes and the heat conducting bars 2b can be regular or irregular.
    [0118] In the first to the sixth embodiments described above, the shape of the guide plate 7 in the direction of the vertical plane to the direction of travel of the vehicle is a shape substantially along the external shape of the refrigerant 2. However, by For example, as shown in Figures 8-1 and 8-2, a guide plate 7 may be arranged in a simplified manner in a shape that substantially accompanies the outer shape of the cover 5, while covering the fins 2a, or it may be a shape that protrudes from the external shape of the refrigerant 2, as shown in Figures 9-1 and 9-2. Figures 8-1 and 8-2 are longitudinal sectional views corresponding to Figure 1-3, which depicts a modification of the guide plate 7. Figure 8-1 represents the case where the auxiliary guide plate is not provided 7a, and Fig. 8-2 depicts the case where the auxiliary guide plate 7a is provided. Figures 9-1 and 9-2 are longitudinal sectional views, corresponding to Figure 1-3, showing a modification of the guide plate 7. Figure 9-1 represents the case where the guide plate is not provided auxiliary 7a, and Fig. 9-2 depicts a case where the auxiliary guide plate 7a is provided.
    [0119] Furthermore, in any of the above embodiments, it is preferable that there is no space between the guide plate 7 and the fins 2a, the heat conducting bars 2b or the cover 5. However, there may be a space that reaches substantially up to the passage of a fin.
    [0120] Industrial applicability
    [0121] As described above, the cooling device for a device arranged under the floor of a vehicle according to the present invention is useful for performing highly efficient cooling of a part to be cooled installed under the floor of a vehicle.
    [0122] Reference number list
    [0123] 1: cooling device; 2: coolant; 2nd: fin; 2b: heat conductor bar; 3: base plate; 4: electronic component; 5: lid; 5a: side opening; 5b: front opening; 5c: large opening; 5d: upper opening; 5e: oblique opening; 5f: lower opening; 6: rib; 7: guide plate; 7a: auxiliary guide plate; 7b: extension portion; 8a: direction of travel; 8b: direction of travel; 9: wind created by walking; 9a: wind created by walking; 9b: wind created by walking; 10: main flow; 10a: main flow; 10b: main flow; 12: natural wind; 13: hole; 101: cooling device; 102a: fin; 102b: heat conductor bar; 102: coolant; 103: base plate; 104: electronic component; 105: cover; 105a: side opening; 105b: front opening; 105c: large opening; 105d: upper opening; 105e: oblique opening; 105f: lower opening; 106: rib; 108a: direction of travel; 108b: direction of travel; 109: wind created by walking; 109a: wind created by walking; 109b: wind created by walking; 110: main flow; 110a: main flow; 110b: main stream; 111: bypass flow; 111a: bypass flow; 111b: bypass flow; 112: natural wind.
    权利要求:
    Claims (14)
    [1]
    1. A cooling device (1) for a device arranged under the floor (4) for a vehicle, wherein the cooling device is configured to be arranged under the floor of the vehicle and is configured to cool the device arranged under the floor (4), arranged under the floor of the vehicle, using the wind created by walking (9a, 9b), as a cooling wind, generated as the vehicle moves, wherein the cooling device (1) comprises the following :
    a base plate (3) on the side of the rear surface from which the device that is under the floor can be connected;
    a heat-radiating unit (2), connected on the front surface side of the base plate (3) and configured to radiate heat conducted from the device arranged under the floor (4) through the base plate (3);
    a cover (5) that surrounds the heat-radiating unit (2) and that includes a first lateral opening (5a) provided in a first lateral surface of the cover (5) and capable of causing the wind created by walking (9a, 9b) flows towards it, and a second lateral opening (5a) provided in a second lateral surface that is opposite to the first lateral surface of the cover (5), with respect to the direction of travel of the vehicle and capable of achieving that the created wind while walking (9a, 9b, 10a, 10b) exit the cover (5), wherein the first and second side surfaces of the cover are configured to face a direction of travel of the vehicle; and
    characterized by what
    The cooling device (1) includes a guide plate (7), configured to guide the wind created by walking (9a, 9b) that flows from the first side opening (5a) towards the thermoradiating unit (2) blocking at least part of a gap area between a surface connecting the first and second side surfaces of the cover (5) and the heat radiating unit (2), and the guide plate (7) is provided in a side gap area between the first side surface cover (5)) and the radiant unit (2).
    [2]
    The cooling device (1) for a device arranged below the floor (4), according to claim 1, wherein the guide plate (7) is configured to block an area of the gap area, excluding the side of the rear surface in a plane orthogonal to the direction of travel.
    [3]
    The cooling device (1) for a device arranged under the floor (4) according to claim 2, wherein the guide plate (7) has a C-shape arranged on the side of the front surface and on the sides in two directions that intersect the side of the front surface of the side space area.
    [4]
    The cooling device (1) for a device arranged under the floor (4) according to claim 3, wherein one end of the guide plate (7) on the side of the lateral surface is arranged to surround the first and second side openings (5a) along a direction that excludes the rear surface side of the outermost periphery of the first and second side openings (5a) in the side surface.
    [5]
    The cooling device (1) for a device arranged below the floor (4), according to claim 1, wherein the guide plate (7) is configured to block all areas of the gap area in a plane orthogonal to the direction of travel.
    [6]
    The cooling device (1) for a device arranged under the floor (4) according to claim 5, wherein the guide plate (7) has a rectangular frame shape, arranged on the side of the front surface, of the side of the rear surface and the sides in two directions intersecting the side of the front surface of the side parting area.
    [7]
    The cooling device (1) for a device arranged under the floor (4) according to claim 6, wherein one end of the guide plate (7) on the side of the lateral surface is arranged to surround the first and the second side openings (5a) along the outermost periphery of the first and the second side openings (5a) on the side surface.
    [8]
    The cooling device (1) for a device arranged under the floor (4), according to any one of claims 1 to 7, wherein the guide plate (7) includes an extension portion (7b) provided to cover part of a surface of the heat-radiating unit (2), along the direction of travel, and the extension portion has an opening in part thereof.
    [9]
    The cooling device (1) for a device arranged under the floor (4) according to any one of claims 1 to 8, wherein the guide plate (7) is manufactured in such a way that it assumes a gradually curved shape .
    [10]
    The cooling device (1) for a device arranged under the floor (4) according to claim 1, wherein the cover (5) further includes an upper surface and a lower surface, as surfaces connecting the first side surface and the second side surface, and includes an air flow opening (5d, 5f) in the upper surface and the lower surface, each, and in the lateral separation area that is on the side of the lateral surface, relative to an outer peripheral surface of the thermoradiating unit (2) facing the lateral surface of the cover inside the cover, the guide plate (7) is configured to guide the wind created by walking (9a, 9b) that flows from the first and second side openings (5a) towards the thermoradiating unit (2), blocking at least part of a gap area between the upper surface of the cover and the thermoradiating unit (2), at least part of a sep area aration between the lower surface and the heat-radiating unit (2), and at least part of a gap area between the front surface side surface and the heat-radiating unit (2), and has a shape that does not completely cover the top portions and bottom of the heat-radiating unit (2) in the direction of travel, or a shape partially covering the outer peripheral surface of the heat-radiating unit (2).
    [11]
    The cooling device (1) for a device arranged below the floor (4), according to claim 10, wherein the guide plate (7) is connected to an angular portion, on the side of the first and second lateral openings (5a), in the outer peripheral portion of the thermoradiating unit (2).
    [12]
    The cooling device (1) for a device arranged below the floor (4), according to claim 10 or 11, wherein the guide plate (7) is connected to the side surface of the cover (5), to surround the first and second side openings (5a).
    [13]
    13. A device arranged under the floor (4) configured to be arranged under the floor of the vehicle, with a cooling device (1), according to one of the preceding claims.
    [14]
    14. A vehicle with a device arranged under the floor (4), with a cooling device (1), according to claim 13.
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    同族专利:
    公开号 | 公开日
    KR20140089421A|2014-07-14|
    EP2789518A1|2014-10-15|
    JPWO2013084729A1|2015-04-27|
    BR112014012776B1|2021-02-02|
    CN103987607A|2014-08-13|
    US9863302B2|2018-01-09|
    KR101588989B1|2016-01-26|
    ES2748450T3|2020-03-16|
    EP2789518B1|2019-08-28|
    US20140318736A1|2014-10-30|
    JP5474265B2|2014-04-16|
    CN103987607B|2016-08-24|
    IN2014CN04113A|2015-07-10|
    EP2789518B9|2019-12-25|
    WO2013084729A1|2013-06-13|
    EP2789518A4|2015-09-02|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP2011270023|2011-12-09|
    PCT/JP2012/080368|WO2013084729A1|2011-12-09|2012-11-22|Cooling device for under-floor device for vehicle|
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