• 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:
    Coverage (3) for a battery (2) of a vehicle (1), characterized in that it comprises a first material, where said first material is a phase change material (36), making it possible to reduce the high temperatures reached in the battery (2) located in the engine compartment (11) during operation, thus increasing its useful life, and reducing the need to actively cool them, or placing them in spaces with lower vehicle temperatures (1), so that the heat of the compartment motor (11) affect the battery as little as possible (2). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2716843A1
    申请号:ES201731409
    申请日:2017-12-14
    公开日:2019-06-17
    发明作者:Pous Guillem Penalva；Hernandez Javier Cordero；Jareno Victor Oliveras；Fernandes Patricia Pilao
    申请人:SEAT SA；
    IPC主号:
    专利说明:

    [0001]
    [0002] Coverage for a vehicle battery
    [0003]
    [0004] OBJECT OF THE INVENTION
    [0005]
    [0006] The present patent application has as its object a coverage for a battery of a vehicle according to claim 1, which incorporates remarkable innovations and advantages.
    [0007]
    [0008] BACKGROUND OF THE INVENTION
    [0009]
    [0010] The batteries of the vehicles are subject to the high temperatures of the engine compartment, which can rise even more in hot climates. This can affect the durability of the battery. It is therefore desirable to cushion the temperature peaks to which said component of the vehicle can be subjected throughout its useful life.
    [0011]
    [0012] In this regard, it is known from the state of the art, as disclosed in WO2015 / 058376A1 a battery cell, comprising: a housing, electrodes and electrolyte, wherein the housing has a structure containing a means for adjustment Of temperature. Said housing is made of a material with improved thermal conductivity and internal structure, intended for said function. This is achieved by calibrating the components for a temperature adjustment, as well as the installation space and the weight of said components.
    [0013]
    [0014] It is also known from the state of the art, as disclosed in document CN204441345, a lithium-ion battery box, which comprises a battery case body and a plurality of parallel battery packs mounted in the internal cavity of the battery body. Battery box. The battery case body comprises an upper metal cover and a lower metal cover which are fixed together to form a cavity. It comprises an adherent phase change film capable of absorbing and releasing heat. The parallel battery packs are in close contact with the films adhered to the phase change material. Thanks to the material of phase change the box presents a greater capacity to absorb and release more heat. In this way a small variation of battery temperature, effectively controlling the temperature. On the other hand there is a reduction of the vibration, avoiding problems of leakage and fluidity of the liquid. Thus, a metal cover for batteries that leave a space to be used for phase change material or PCM material is observed in said document.
    [0015]
    [0016] It is on the other hand known from the state of the art, as disclosed in the document CN205692890, a battery box that includes: the housing of the battery case, the battery module, the heat exchange assemblies, for the control of temperature in the box and in the battery module. A phase change material is included in the energy storage section, which extends its useful life. Specifically, a lower sheet formed by PCM material or phase change is observed, in this case intended for internal cooling of a high voltage battery.
    [0017]
    [0018] Thus, and in view of the foregoing, it is seen that there is still a need to have a coverage for a vehicle battery, capable of reducing the high temperatures reached in the battery located in the engine compartment during its operation, thus increasing its useful life, and reducing the need to refrigerate them actively, or to put them in spaces with less elevated temperatures of the car. In short, the objective of the present invention is that the heat of the engine compartment affects the battery as little as possible.
    [0019]
    [0020] DESCRIPTION OF THE INVENTION
    [0021]
    [0022] The present invention consists of a cover for a vehicle battery. In particular for normal lead, low voltage batteries. Thus, the main utility of the present invention is not that of cooling the heat of the battery, but that of isolating the battery from the external heat. This effect is achieved by the arrangement on the battery of covers or covers comprising a material of phase change or PCM, which produces a cooling with respect to the temperature reached in the engine compartment of motor vehicles. In particular the covers or covers that comprise a material of phase change or PCM, absorb the thermal energy in the state of phase change, and therefore maintain a level of temperature, closer to the ambient temperature, for longer than the current plastic materials.
    [0023] Thus, and more specifically, the present invention relates to a cover for a battery of a vehicle, comprising a first material, wherein said first material is a phase change material. Coverage means the cover of the vehicle's battery that corresponds to the object that covers and protects said battery.
    [0024]
    [0025] As already mentioned, a phase change material can also be called by its acronym in English (PCM - Phase change Material), applying to covers or sheaths for batteries of standard type, or lead (Pb). A phase change material is a substance with a high heat of fusion that, melting or solidifying at a certain temperature, is capable of storing or releasing large amounts of energy.
    [0026]
    [0027] Preferably, the cover or cover of the battery is composed of several walls or compartments that cover the entirety of said battery, adapting to the walls or surfaces that the battery itself has.
    [0028]
    [0029] An important advantage provided by the present invention is that of isolating the battery from the external temperature by means of the insulation produced by the PCM or phase change material. Its use is destined, preferably, to zones of warm climate, which allows that the temperature of use of the battery is less time above the 60 °. In this way the useful life of the batteries lengthens and the problems with guarantees of the products diminish.
    [0030]
    [0031] Advantageously, the coverage for a battery of a vehicle is removable or reversible, or capable of being installed in a separable manner, thus being easy to remove and install. There is therefore the possibility of being installed only in the vehicles that need it due to climatic requirements of the specific country where the sale of said vehicle takes place.
    [0032]
    [0033] In a preferred embodiment of said battery cover of a vehicle, said cover comprising a PCM material or phase change, covers the side walls of the battery. In this way an insulation of greater efficiency is provided, since it is on the sides where the battery is exposed to a greater thermal impact. At the top and the base, the battery housing itself usually has a greater thickness of material, or it includes additional components, such as a lid, which already carry out a certain thermal insulation paper.
    [0034]
    [0035] However, and in another embodiment of the invention, the cover has an additional element that covers the upper surface of the battery, so that also on its upper side a thermal protection is carried out, which increases the level of insulation.
    [0036]
    [0037] More particularly, the coverage is of a second material, where said second material is a textile material, so that the coverage is easy to produce and economical.
    [0038]
    [0039] According to another aspect of the invention, the vehicle battery cover comprises at least one compartment, where the compartment contains the first material, the phase change material, so that, given its proximity to the wall of the battery, it performs a thermal damping. By placing the first material in at least one compartment allows a versatility of positions to better isolate the temperature of the battery.
    [0040]
    [0041] More specifically, the first material, the phase change material is contained in at least one wrapper, representing a limited and determined storage space. Said wrapping allows an easy assembly of the first material when introducing it in at least one compartment
    [0042]
    [0043] In a preferred embodiment of the invention, the at least one wrapper is divided in a direction or in a direction substantially parallel to the base of the battery in the form of horizontal stripes.
    [0044] In this way, since the phase change material or PCM is in compartments in horizontal orientation, the advantage is obtained that, when the PCM material changes phase, said material does not move internally inside the compartment due to the gravity , so that, consequently, it is possible to maintain a more general and homogeneous distribution throughout the compartment.
    [0045]
    [0046] And even if there is still a phase change in the PCM material inserted inside the cover or battery cover, the one that is in a compartmented area means that the PCM material is not concentrated in the lower part of the cover. cause of gravity, and thus, thanks to the compartmentalization, said PCM material acted in the same way on all surfaces of the battery.
    [0047] According to another aspect of the invention, the at least one envelope is sealed, so that there is no loss of the phase change material, even after its conversion to a liquid state.
    [0048]
    [0049] On the other hand, the at least one wrapper containing the first material is removable or capable of being installed said wrapper separable in at least one compartment of the cover, so that there is the possibility of extracting and replacing the exchange material of phase.
    [0050]
    [0051] According to another aspect of the invention, the phase change temperature of the first material or the phase change material is determined between the 40 ° and 60 ° range, so that the cover insulates the battery from the heat of the motor and the temperature Exterior. In this way, the temperature at which the battery is subjected is muffled, remaining at the maximum in the aforementioned range of between 40 ° and 60 ° C for hot climates, and periods of high demand for the engine that raises the temperature of your compartment.
    [0052]
    [0053] According to yet another aspect of the invention, the phase change temperature of the first material or the phase change material is determined between the range of -10 ° to 10 ° C so that the coverage maintains the heat in the battery in zones of cold climates.
    [0054]
    [0055] These temperature ranges of the PCM material are indicative depending on external factors such as meteorological data.
    [0056]
    [0057] Thus, it is possible to use the covers or covers of PCM material, changing the phase change temperature of said PCM material, in order to keep the heat in the batteries in zones of cold climates, when the outside temperature is relatively low for start the battery The PCM material would not help the first ignition of the engine, but it would help in subsequent ignitions as it would keep the heat to facilitate a second start.
    [0058]
    [0059] In a preferred embodiment of the cover for a vehicle battery of the present invention, said cover comprises a plurality of walls joined together by means of at least one flange, where the plurality of walls cover the surface of the battery. In this way, the cover offers a better thermal protection for the battery, as there are no gaps in the heat or cold.
    [0060] In another preferred embodiment of the invention the sheath or cover comprises a plurality of walls joined together covering the surface of the battery continuously. Also in this way the coverage offers a better thermal protection of the battery, as it does not present chinks where the heat or the cold falls, being also that these unions are completely functional part of the coverage, with the presence of PCM material, and not only one element of union.
    [0061]
    [0062] Further specifying each of the walls of the cover or cover correspond to or protect an outer surface of the battery. On the other hand, the cover or sheath of the present invention has the additional advantage of being a removable cover and capable of being folded, so that its installation on the battery is facilitated.
    [0063]
    [0064] According to another aspect of the invention, the at least one plurality of walls of the sheath or cover comprises at least one slit for the exit of at least one cable from the battery. Said feature represents an important advantage, since the presence of cables protruding towards the engine compartment from the terminals of the battery is common in said elements of the vehicle.
    [0065]
    [0066] More particularly, the compartment intended for the housing of the phase change material or PCM is sealed. In this way, there is no leaks or losses with the PCM material, even with a change of phase to liquid state.
    [0067]
    [0068] In a particular embodiment of the invention, the compartment intended for the housing of the phase change material or PCM, is thermo-sealed
    [0069]
    [0070] The attached drawings show, by way of non-limiting example, a cover for a battery of a vehicle, constituted according to the invention. Other characteristics and advantages of said coverage for a battery of a vehicle, object of the present invention, will be evident from the description of a preferred embodiment, but not exclusive, which is illustrated by way of non-limiting example in the drawings that are accompany, in which:
    [0071]
    [0072] BRIEF DESCRIPTION OF THE DRAWINGS
    [0073] Figure 1 .- It is a perspective view of a motor compartment a vehicle comprising a battery, according to the present invention.
    [0074] Figure 2.- It is a plan view of a cover for a battery of a vehicle, deployed on a plane, according to the present invention.
    [0075] Figure 3A.- It is a perspective view of a vehicle battery, according to the present invention.
    [0076] Figure 3B.- It is a perspective view of a vehicle battery with its corresponding coverage, according to the present invention.
    [0077] Figure 4 is a view of a graph with the temperature test subjected to a battery with and without coverage, according to the present invention.
    [0078] Figure 5.- It is a detail view of an envelope for the phase change material
    [0079]
    [0080] DESCRIPTION OF A PREFERRED EMBODIMENT
    [0081]
    [0082] In view of the mentioned figures and, according to the numbering adopted, one can observe in them an example of a preferred embodiment of the invention, which comprises the parts and elements that are indicated and described in detail below.
    [0083]
    [0084] Figure 1 shows, illustratively, a motor compartment 11 of a vehicle 1, in which a battery 2 can be seen on the right, with cables 23 emerging from its cover, and with its side 21 visible, as a surface to be covered by the cover 3 of the present invention. It can be seen, given its integration with the rest of elements of the engine compartment 11, that the temperature of the rest of the components affects the battery 2 full.
    [0085]
    [0086] Figure 2 shows, illustratively, a plan view of a cover 3 for a battery 2 of a vehicle 1, deployed on a plane, in which the four side walls 31 can be seen together with a wall 31 upper right, which can be joined, either through a series of tabs 34, or through the prolongation of the wall 31. Each of the walls 31, as you could see in the bottom view, it has a thickness 32, which corresponds to the thickness of the covering of the wall 31, having inside it a compartment 33, where the phase change material 36 is housed. In the wall 31 corresponding to the left and right sides of the battery, there is a slot 35 intended to allow the cables 23 to exit from the upper part of the battery 2, where the terminals are usually accessible.
    [0087]
    [0088] In a preferred embodiment, the insulating materials that make up the cover 3 are: Aluminum, with a thickness 32 of 0.5mm to 1mm, or Nylon, with a thickness 32 of approximately 0.3mm. It is observed that this second, Nylon, is more resistant to punctures.
    [0089]
    [0090] Note also that the function of the tabs 34 between walls 31, is also that of folding the cover 3 can be done in order to adapt it to the battery 2. The cover 3 or cover is sold stretched and unfolded, as it appears in said figure 2.
    [0091]
    [0092] Underline, as mentioned, the importance of the walls 31 of the cover 3 being watertight in order to avoid losses with the passage from solid to liquid the PCM material, and preferably they must also be thermo-sealed. As for the thickness 32 of said walls 31, it may be different for each application and environment to which the battery is intended. Thus, the thickness or thickness 32 is estimated to be greater for warm countries.
    [0093]
    [0094] Figure 3A shows, in an illustrative way, a perspective view of a battery 2 for vehicle 1. It can be seen the front walls 31 and one side of the battery 2, next to the base 22 and the top cover, where the terminals are located and cables 23. As mentioned, the cover of the battery 2 already isolates partly from the temperature of the motor 11, and the difference and advantage comes from the insulation by the walls 31 of the sides .
    [0095]
    [0096] Figure 3B shows, illustratively, a perspective view of a battery 2 for vehicle 1 with its corresponding cover 3, which comprises a wall 31 on the upper part, or cover, of the battery 2. Underneath from it, the output of the cables 23 can be seen. The absence of a side flange 34 also appeared in this embodiment, given that it is optional, there being a possible connection or hooking of another type, such as by means of velcro or clips, that would give continuity to the wall 31. In this way the wall 31 could include a compartment 33 of larger size, which is closer to the corners of the battery 2, with the phase change material 36 covering a larger surface of the battery 2 A recess 35 in the upper part of the side 21 of the cover 33, intended for the exit of the cables 23, is also observed on both sides.
    [0097] Figure 4 shows, illustratively, a view of a graph with the temperature test subjected to a battery 2 with and without coverage 3. This temperature test corresponds to a standard test with a normalized profile of temperatures as a test usual in the automotive field. It can be seen that the temperature difference in the battery 2 between with and without coverage 3 is approximately 5 ° C.
    [0098]
    [0099] In said figure 4 the following variables can be appreciated:
    [0100] - (F41) temperature test cycle (with the continuous line of the graph)
    [0101] - (F42) temperature with normal coverage (with the dotted line of the graph)
    [0102] - (F43) temperature with PCM coverage (with the dashed line of the graph)
    [0103] - (F44) upper limit (according to specifications)
    [0104] - (F45) maximum temperature with normal coverage (maximum peak of the dotted line of the graph)
    [0105] - (F46) maximum temperature with PCM coverage (maximum peak of the dashed line of the graph)
    [0106]
    [0107] Figure 5 shows, in an illustrative way, a detail view of the envelope (38) containing the phase change material 36 or PCM that is inserted in the compartments on one side of the cover 3 for battery 2. In said wrapping 38 can be seen a series of horizontal strips 37, as a housing of material phase change 36.
    [0108]
    [0109] More specifically, as can be seen in the cross section of figure 2, and in figure 5, the cover 3 for battery 2 comprises a first material, where said first material is a phase change material 36, wherein said material of phase change 36 comprises at least one wax, or at least one paraffin. It should be mentioned that there are phase change materials 36 that pass from solid to solid, although normally the phase change materials 36 or PCM pass from solid to liquid.
    [0110]
    [0111] According to a particular embodiment of the invention, as can be seen in Figure 3B, the cover 3 comprises a plurality of walls 31 joined together, by means of at least one flange 34, which cover the surface of the battery 2. As shown in FIG. mentioned, said flange can be, in an alternative embodiment, a hook of another type, velcro type, or clip, in order to give greater continuity to the wall 31 of the cover 3.
    [0112] Note that, as can be seen in Figure 2, the thickness 32 of the at least one wall 31 of the cover 3 or sheath is preferably between 0.3mm and 1mm, allowing the exchange material to be placed inside it. step 36. Said phase change material 36, or PCM, can be a material in the form of a hermetic bag, which is placed inside the cover 3 or sheath, or can also be fully integrated within the cover 3 or sheath, so that they are not removable.
    [0113]
    [0114] In one embodiment, the cover 3 of the phase change material 36, or PCM, can be made of textile material, for example nylon, while the hermetic bag having the phase change material 36, can be made of aluminum.
    [0115]
    [0116] According to another aspect of the invention, as can be seen in Figure 3B, the at least one wall 31 of the cover 3 comprises at least one slit 35 for the cable outlet 23 of the battery 2. Said slot 35 must have Preferably, the minimum size for the cables 23 to pass, that is, as the minimum dimension, the sum of the diameters of the cables 23.
    [0117]
    [0118] The details, shapes, dimensions and other accessory elements, as well as the components used in the implementation of the coverage for a vehicle battery, may be conveniently substituted by others that are technically equivalent, and do not depart from the essentiality of the invention or the scope defined by the claims that are included below the following list.
    [0119]
    [0120] List of references:
    [0121]
    [0122] 1 vehicle
    [0123] 11 engine
    [0124] 2 battery
    [0125] 21 lateral
    [0126] 22 base
    [0127] 23 cables
    [0128] 3 coverage
    [0129] 31 wall
    [0130] 32 thickness
    [0131] 33 compartment
    [0132] 34 tab
    [0133] 35 cleavage
    [0134] 36 material phase change
    [0135] 37 horizontal stripes
    [0136] 38 wrapping
    [0137]
    [0138] Text references in the figures
    [0139]
    [0140] F41 temperature test cycle
    [0141] F42 temperature with normal coverage
    [0142] F43 temperature with PCM coverage
    [0143] F44 upper limit
    [0144] F45 maximum temperature with normal coverage F46 maximum temperature with PCM coverage
    权利要求:
    Claims (1)
    [0001]
    1- Coverage (3) for a battery (2) of a vehicle (1), characterized in that the cover (3) comprises a first material, where said first material is a phase change material (36).
    2. Coverage (3) for a battery (2) of a vehicle (1) according to any of the preceding claims, characterized in that said cover (3) is capable of being installed in the battery (2) detachably.
    3- Coverage (3) for a battery (2) of a vehicle (1) according to any of the preceding claims, characterized in that said cover (3) covers at least one side wall of the battery (2).
    4- Cover (3) for a battery (2) of a vehicle (1) according to any of the preceding claims, characterized in that said cover (3) covers an upper surface of the battery (2).
    5- Cover (3) for a battery (2) of a vehicle (1) according to any of the preceding claims, characterized in that said cover (3) is a second material, where said second material is a textile material.
    6- Cover (3) for a vehicle battery (2) according to any of the preceding claims, characterized in that it comprises at least one compartment (33), where the at least one compartment (33) contains the first material.
    7. Coverage (3) for a vehicle battery (2) (1), according to any of the preceding claims, characterized in that the first material is contained in at least one wrapper (38).
    8- Coverage (3) for a vehicle battery (2) (1), according to the preceding claim, characterized in that the at least one wrapper (38) is divided in a direction substantially parallel to the base of the battery (2) in shape of horizontal stripes (37).
    9- Coverage (3) for a vehicle battery (2) (1), according to any of claims 7 to 8, characterized in that the at least one wrapper (38) is watertight.
    10- Coverage (3) for a vehicle battery (2) (1), according to any of claims 7 to 9, characterized in that the at least one wrapper (38) is capable of being installed in the at least one compartment (33). ) in a separable way.
    11- Coverage (3) for a vehicle battery (2) (1), according to any of the preceding claims, characterized in that a phase change temperature of the first material is determined between the 40 ° and 60 ° range, allowing the Coverage (3) Isolate the battery (2) from engine heat (11) and outside temperature.
    12- Coverage (3) for a vehicle battery (2) (1), according to any of claims 1 to 10, characterized in that a phase change temperature of the first material is determined between the range of -10 ° to 10 ° , allowing the cover (3) to keep the heat in the battery (2).
    13- Coverage (3) for a vehicle battery (2) according to any of the preceding claims, characterized in that the cover (3) comprises a plurality of walls (31) joined together by means of at least one flange (34), where the plurality of walls (31) cover the surface of the battery (2).
    14- Coverage (3) for a vehicle battery (2) according to any of claims 1 to 12, characterized in that the cover (3) comprises a plurality of walls (31) joined together in a continuous manner covering the surface of the battery (2).
    15- Coverage (3) for a vehicle battery (2) according to any of claims 13 to 14, characterized in that the at least one plurality of walls (31) of the cover (3) comprises at least one slit (35) for the output of at least one cable (23) of the battery (2).
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    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201731409A|ES2716843B2|2017-12-14|2017-12-14|Coverage for a vehicle battery|ES201731409A| ES2716843B2|2017-12-14|2017-12-14|Coverage for a vehicle battery|
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