• 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:
    A cooling device comprises a cooling channel (16, 17, 18) and a heat pump with a first evaporator section (51). The first evaporator section (51) is arranged in the cooling channel (16, 17, 18). In addition, a fan (13) is present, which promotes a cooling air flow in the cooling channel (16, 17, 18). The fan (13) is arranged downstream of the first evaporator section (51) and in a curved section (17) of the cooling duct (16, 17, 18).
    公开号:CH711098A2
    申请号:CH01229/16
    申请日:2016-09-21
    公开日:2016-11-30
    发明作者:Oechsle Hans-Peter；Diana Emanuele；Matyas Lantody
    申请人:V-Zug Ag；
    IPC主号:
    专利说明:

    Field of the invention
    The invention relates to a refrigerator, in particular a built-in refrigerator, according to the preamble of claim 1. This comprises a cooling channel, a heat pump with a first evaporator section and a fan for promoting a cooling air flow.
    background
    There are cooling units are known in which air flows past an evaporator for cooling and is distributed via cooling channels by air conveying means in the individual cooling compartments. The fact that the cooling air is thus cooled centrally in one place and then distributed in the cooling compartments, allows a more targeted cooling of the individual cooling compartments. On the other hand, it has the disadvantage that the cooling air between the evaporator and the cooling compartments must be transported back and forth. The operation of the air conveyor requires energy.
    Presentation of the invention
    It has as its object to reduce the energy consumption of a refrigerator of the type mentioned.
    This object is met by the cooling device according to claim 1. Accordingly, the refrigerator includes:at least one cooling channel,a heat pump having a first evaporator section, which is arranged in a first cooling duct section of the at least one cooling duct,a fan, for conveying a cooling air flow in the at least one cooling channel, wherein the fan is arranged in the at least one cooling channel downstream of the first evaporator section.
    The fan is arranged in a curved portion of the cooling channel.
    Under a cooling channel is any device to understand, which leads a cooling air flow in its flow direction.
    The term fan is also to be understood broadly, comprising any type of air conveying means.
    With a curved portion of the cooling channel is meant that this is a deviation from a straight course of the cooling channel. The direction of the cooling air flow should be changed by the curvature.
    The arrangement of the fan in a curved portion has the advantage that a change in direction of the cooling air flow is caused by the fan and the cooling air flow does not have to be redirected by an additional deflection device. This reduces the overall flow resistance and thus the energy consumption of the fan.
    Advantageously, the curved portion of the cooling channel is configured to redirect the cooling air flow by at least 75 °, in particular at least 160 °, in particular approximately 180 °.
    With a deflection of approximately 180 ° is meant that the flow is deflected in a substantially opposite direction, but it does not depend on a change in direction of exactly 180 °.
    The greater the angle of the deflection, the more effectively the advantage of the arrangement of the fan can be exploited in a curved section.
    Furthermore, downstream of the fan, a second evaporator section may be arranged in a second cooling passage section of the at least one cooling passage.
    Advantageously, the second evaporator section may have a smaller flow cross-section and / or a shorter length than the first evaporator section.
    Under the length is to be understood the expansion of the evaporator section in the flow direction.
    A smaller flow cross-section and / or a shorter length of the second evaporator section have the advantage that the cooling air flow is cooled more strongly when flowing through the first evaporator section, as when flowing through the second evaporator section. As a result, the cooling air flow condenses already in the majority when flowing through the first evaporator section, so that the risk of condensation formation at the fan arranged between the first and the second evaporator section can be reduced.
    Advantageously, the first and / or the second evaporator section each extend over the entire flow cross-sectional area of the at least one cooling channel.
    As a result, the cooling air flow flows necessarily through the first and / or through the second evaporator section and there is an optimal heat exchange between evaporator and cooling air flow instead.
    Advantageously, the curved portion of the cooling channel to a change in direction of approximately 180 °. The first and the second cooling channel section are arranged such that they adjoin one another on adjacent side faces and can be flowed through in the opposite direction by the cooling air flow.
    This arrangement of the two evaporator sections and the fan leads to a compact design of the refrigerator.
    In particular, the air supply and the air discharge channels, which lead the cooling air from the evaporator to the individual cooling compartments and back to the evaporator, are arranged in the rear region of the refrigerator. The cooling air thus exits the air discharge channel, flows in the cooling device from back to front through the first evaporator section, then through the deflecting fan and then in the opposite direction back through the second evaporator section to the air supply channel through which the cooling air is supplied to the cooling compartments.
    By this arrangement, the cooling air flow can be performed in a compact and energy-saving manner through the evaporator of the refrigerator.
    Advantageously, a partition wall is arranged between the first and the second evaporator section, for separating the cooling air flow in the first evaporator section from the cooling air flow in the second evaporator section.
    This can ensure that the cooling air flow through both evaporator sections and are guided by the fan and the cooling air flow does not shorten the way.
    Furthermore, the first and the second cooling channel section each have an outer side surface, which lie opposite the adjacent side surfaces. A drive axis of the fan is arranged closer to a plane of the outer side surface of the second cooling passage section than to a plane of the outer side face of the first cooling passage section.
    By "closer arranged" is meant that the distance of the drive axle to a plane is smaller, as to the other plane. The distance is the shortest possible distance between any point on the drive axle and a plane. However, the drive axle is not the mathematically infinitely long axis, but only the trained axis of the fan, which is limited to the height of the fan.
    While, as mentioned above, the flow cross-sectional areas of the two evaporator sections can be configured asymmetrically to condense the cooling air already in majority before flowing through the fan, it can also be provided, the fan is not symmetrical in the middle of the planes of the outer side surfaces, but to arrange asymmetrically, ie closer to a plane than the other plane of the outer side surfaces, so that the arrangement of the fan in the curved portion with the asymmetrical configuration of the flow cross-sectional areas of the evaporator sections is coordinated.
    Advantageously, the drive axis between the plane of the outer side surface of the first cooling passage portion, in particular a plane of the adjacent side surface of the first cooling passage portion, and a plane of the adjacent side surface of the second cooling passage portion is arranged.
    Furthermore, the fan may be configured as a centrifugal fan.
    Since the radial fan anyway provides a deflection of the air flow in its design, this is particularly suitable for installation between the two evaporator sections.
    Advantageously, the centrifugal fan is arranged such that its axis of rotation at an angle of less than 87 °, in particular less than 85 °, in particular less than 80 °, is arranged to a flow direction of the cooling air flow through the first evaporator section.
    This means that the cooling air flow must be deflected only by the corresponding angle to flow into the centrifugal fan. This allows an arrangement of the centrifugal fan with the lowest possible flow resistance.
    Advantageously, the at least one cooling channel is arranged such that the cooling air flows through the first evaporator section from back to front.
    By "front" is that side of the refrigerator to understand in which a user's door is arranged, the opening of which gives a user access to the refrigerators and / or freezers.
    Furthermore, the first evaporator section can be arranged between a freezer compartment and a refrigeration compartment of the refrigerator.
    Brief description of the drawings
    Further embodiments, advantages and applications of the invention will become apparent from the dependent claims and from the following description with reference to the figures. Showing:<Tb> FIG. 1 <SEP> the refrigerator in full view,<Tb> FIG. 2 <SEP> a detailed view of the section A from FIG. 1 with evaporator and fan,<Tb> FIG. 3 <SEP> a section through the two evaporator sections and through the fan, and<Tb> FIG. 4 <SEP> a detailed view from above of the cold area with fan.
    Ways to carry out the invention
    Fig. 1 shows a ausgestaltetes as built-in refrigerator cooling unit with a cooling compartment 1 and a freezer compartment 2. Between the refrigerator compartment 1 and the freezer compartment 2 is a cold area 3 and below the freezer compartment 2, a hot area 4 is arranged. In the cold area 3, an evaporator 5 for cooling the refrigerating compartment 1 and the freezer compartment 2 is arranged. In the warm area 4, a heat-emitting compressor 6 and a heat-emitting condenser 7 are arranged. The arrangement of the cold region 3 between the refrigerating compartment 1 and the freezer compartment 2 is advantageous because the cold area 3 and the warm area 4 are thermally separated from one another by the freezer compartment. The cold area 3 and the warm area 4 are connected by refrigerant piping to allow the refrigerant to circulate in the heat pump cycle. The more detailed embodiment of the cold region is illustrated by FIGS. 2 to 4 in more detail.
    In Fig. 2, the cold region 3 is shown, wherein the front of the refrigerator, on which a user door 8 is arranged, on the right side of Fig. 2 and the back of the refrigerator, to which a rear wall 9 and a rear insulating element 10 are arranged on the left side of Fig. 2 are shown.
    The cooling air flow from the cooling compartment 1 is guided from above through a first air discharge channel 11 and the cooling air flow from the freezer compartment 2 from below through a second air discharge channel 12 in the cold area. After entering the cold zone, the cooling air flows in a given sequence through a first evaporator section of the evaporator 5, through a fan 13, which conveys the cooling air flow in the opposite direction, through a second evaporator section of the evaporator 5 and then via air supply channels 14 and 15 to the cooling compartment 1 and the freezer compartment 2.
    In Fig. 3 is a section through the cold area 3 is shown with a view from above. The front side with the user door 8 is shown at the bottom of FIG. 3 and the rear side of the refrigerator is at the top of FIG. 3.
    The cooling air flow enters through the air discharge channels 11 and 12 in the cold region 3. Subsequently, the cooling air flow flows (flow direction shown by arrows)through a first cooling passage section 16, in which the first evaporator section 51 is arranged,through a curved cooling passage section 17, in which the centrifugal fan 13 is arranged,in the opposite direction back through a second cooling passage section 18, in which the second evaporator section 52 is arranged.
    The radial fan 13 deflects the cooling air flow by approximately 180 °.
    The first evaporator section 51 and the second evaporator section 52 are arranged adjacent to each other and separated from each other by a partition 19. Although the two evaporator sections 51 and 52 have the same length 20 in the flow direction, but they have different flow cross-sectional areas. The width of the flow cross-sectional area of the first evaporator section 51 is shown in FIG. 3 with a double arrow 21. Due to the larger cross-sectional area of the first evaporator section 51, the cooling air flow is cooled much more strongly before flowing through the fan 13 than when flowing through the second evaporator section 52. As a result, the cooling air flow condenses for the most part before the fan 13, so that there is the risk of condensation reflected on the rotor blades of the fan 13, reduced.
    To optimize the deflection of the cooling air flow in the curved portion 17 of the cooling channel of the fan 13 is not centrally located in the cold region 3. The drive shaft 131 of the fan 13 is located closer to a plane 32 of the outer side surface of the second cooling passage portion 18 than to a plane 31 of the outer side surface of the first cooling passage portion 16. Further, the drive shaft 131 is located between the plane 31 of the outer side surface of the first cooling passage portion 16 and a plane 34 of the adjacent side of the second cooling passage portion arranged.
    The adjacent side surfaces 33, 34 are the side surfaces adjoining the dividing wall 19.
    Fig. 4 shows the cold area in an exterior view from above.
    While preferred embodiments of the invention have been described in the present application, it is to be understood that the invention is not limited to these and may be practiced otherwise within the scope of the following claims.
    权利要求:
    Claims (10)
    [1]
    1. Refrigerator, in particular a built-in refrigerator, comprisingAt least one cooling channel (16, 17, 18),A heat pump having a first evaporator section (51) which is arranged in a first cooling passage section (16) of the at least one cooling passage (16, 17, 18),- A fan (13), for conveying a cooling air flow in the at least one cooling channel (16, 17, 18), wherein the fan (13) in the at least one cooling channel (16, 17, 18) downstream of the first evaporator section (51) ischaracterized in that the fan (13) in a curved portion (17) of the cooling channel (16, 17, 18) is arranged.
    [2]
    2. Cooling device according to claim 1, wherein the curved portion (17) of the cooling channel (16, 17, 18) is adapted to deflect the cooling air flow by at least 75 °, in particular at least 160 °, in particular approximately 180 °.
    [3]
    3. Refrigerator according to one of the preceding claims, wherein downstream of the fan (13), a second evaporator section (52) in a second cooling passage section (18) of the at least one cooling channel (16, 17, 18) is arranged.
    [4]
    4. Cooling device according to claim 3, wherein the second evaporator section (18) has a smaller flow cross-sectional area and / or a shorter length than the first evaporator section (51),in particular, wherein the first (51) and / or the second (52) evaporator section each extend over the entire flow cross-sectional area of the at least one cooling channel (16, 17, 18).
    [5]
    5. Cooling device according to claim 1 and according to one of claims 3 or 4, wherein the curved portion (17) of the cooling channel (16, 17, 18) has a change in direction of approximately 180 °, the first (16) and the second cooling channel portion (17 ) are arranged such that they adjoin one another on adjacent side surfaces and can be flowed through in the opposite direction by the cooling air flow,in particular wherein between the first (51) and the second (52) evaporator section a partition wall (19) is arranged, for separating the cooling air flow in the first evaporator section (51) from the cooling air flow in the second evaporator section (52).
    [6]
    6. A refrigerator according to claim 5, wherein the first (16) and the second (18) cooling channel section each have an outer side surface which oppose the adjacent side surfaces, and wherein a drive axis (131) of the fan (13) closer to a plane of the outer Side surface (32) of the second cooling passage portion (18) is arranged, as to a plane of the outer side surface (31) of the first cooling passage portion (16),in particular wherein the drive axis (131) between the plane of the outer side surface (31) of the first cooling passage portion (16), in particular a plane of the adjacent side surface (33) of the first cooling passage portion (16), and a plane of the adjacent side surface (34) of the second Cooling passage section (18) is arranged.
    [7]
    7. Refrigerator according to one of the preceding claims, wherein the fan (17) is designed as a centrifugal fan.
    [8]
    8. The cooling device according to claim 7, wherein the centrifugal fan (17) is arranged such that its axis of rotation (131) at an angle of less than 87 °, in particular less than 85 °, in particular less than 80 °, to a flow direction of the cooling air flow through the first evaporator section (51) is arranged.
    [9]
    9. Refrigerator according to one of the preceding claims, wherein the at least one cooling channel (16, 17, 18) is arranged such that the cooling air flows through the first evaporator section (51) from back to front.
    [10]
    10. Cooling appliance according to one of the preceding claims, wherein the first evaporator section (51) between a freezer compartment (2) and a cooling compartment (2) of the cooling device is arranged.
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    同族专利:
    公开号 | 公开日
    CH711098A3|2017-04-13|
    CH711098B1|2020-08-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US10422568B2|2017-03-10|2019-09-24|Lg Electronics Inc.|Refrigerator|DE1112093B|1958-02-26|1961-08-03|C V Hill & Company Inc|Evaporator blower unit for cooling systems|
    KR101637443B1|2009-07-15|2016-07-07|엘지전자 주식회사|Defristing heater for refrigerator and refrigerator having the same|
    CN204478635U|2015-01-13|2015-07-15|苏州三星电子有限公司|A kind of refrigerator and frostless refrigeration system thereof|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH01229/16A|CH711098B1|2016-09-21|2016-09-21|Cooling device with asymmetrically designed cold side.|CH01229/16A| CH711098B1|2016-09-21|2016-09-21|Cooling device with asymmetrically designed cold side.|
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