Cooling plate, battery pack and vehicle

Abstract

The utility model provides a cooling plate, a battery pack and a vehicle. The cooling plate comprises a cooling plate body, the cooling plate body comprises a gluing part, and the gluing part is used for coating heat-conducting glue; and the anti-skid piece is connected to the gluing part, and the anti-skid piece is used for preventing the heat-conducting glue from sliding off from the gluing part. The cooling plate disclosed by the utility model can improve the heat dissipation capability of the battery pack.

Description

Technical Field

[0001] The utility model relates to the technical field, and in particular to a cooling plate, a battery pack and a vehicle. Background Art

[0002] With rising awareness of environmental protection, new energy vehicles (NEVs) such as hybrid and electric vehicles have seen significant growth. These vehicles typically use battery packs as their power source, and their lifespan and efficiency are crucial. Battery packs typically generate heat during use, which can reduce their lifespan and efficiency.

[0003] Related technologies typically install cooling plates between multiple, side-by-side battery modules in a battery pack, then fill the gap between the modules and the cooling plates with thermally conductive adhesive. Heat is dissipated through the cooling plates and the adhesive, thereby lowering the battery pack's temperature. However, the thermal adhesive is typically applied directly to the cooling plates, which can easily slide off the plates due to factors like gravity, reducing the battery pack's heat dissipation capabilities. Utility Model Content

[0004] In view of this, the present invention aims to provide a cooling plate, a battery pack and a vehicle to solve the problem that the thermal conductive adhesive in the existing cooling plate easily slides off the cooling plate, thereby reducing the heat dissipation capacity of the battery pack.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0006] A cooling plate, applied to a battery pack, comprising: a cooling plate body, the cooling plate body comprising a glue coating portion, the glue coating portion being used to apply thermally conductive glue;

[0007] and an anti-slip part, wherein the anti-slip part is connected to the glue coating part and is used to prevent the thermal conductive glue from sliding off the glue coating part.

[0008] Furthermore, the anti-slip component is an anti-slip net, and the anti-slip net is connected to the rubber coating part.

[0009] Furthermore, the anti-slip part is an anti-slip plate, and the material of the anti-slip plate is a porous material.

[0010] Furthermore, the anti-slip component is an anti-slip gasket, and the friction force of the anti-slip gasket is greater than the friction force of the cooling plate body.

[0011] Furthermore, a plurality of anti-slip parts are connected at intervals on one of the glue coating parts.

[0012] Furthermore, the cooling plate body includes a plurality of curved portions, which are sequentially connected in a serpentine arrangement. The surface of each curved portion in contact with the battery module is provided with the glue portion, and each glue portion is connected to the anti-slip part.

[0013] Furthermore, the anti-slip part is detachably connected to the glue coating portion.

[0014] Compared with the prior art, the cooling plate of the present invention has the following advantages:

[0015] The cooling plate described in the present invention has an anti-slip member provided on the adhesive coating portion of the cooling plate body. The anti-slip member can fix the thermally conductive adhesive and prevent the thermally conductive adhesive from sliding off the cooling plate, thereby improving the heat dissipation capacity of the battery pack. Since the thermally conductive adhesive slides off under the action of gravity, it will cause the thermally conductive adhesive to be unevenly distributed on the adhesive coating portion. The uneven thermally conductive adhesive will prevent heat from being evenly and quickly transferred from the battery module to the cooling plate. By providing an anti-slip member to fix the thermally conductive adhesive, the thermally conductive adhesive can be evenly distributed on the adhesive coating portion, thereby improving the heat dissipation capacity of the battery pack. The anti-slip member can reduce the fluidity of the thermally conductive adhesive on the adhesive coating portion, reducing the additional cleaning and rework steps caused by the flow of the adhesive, simplifying the production process, and saving time and cost.

[0016] Another object of the present invention is to provide a battery pack to solve the problem that the thermal conductive adhesive in the existing cooling plate easily slides off the cooling plate, thereby reducing the heat dissipation capacity of the battery pack.

[0017] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0018] A battery pack includes the above-mentioned cooling plate.

[0019] Furthermore, the battery pack further includes:

[0020] Multiple rows of battery modules, with the cooling plate provided between two adjacent rows of battery modules;

[0021] and a heat-conducting adhesive layer, wherein the heat-conducting adhesive layer is filled between the battery module and the cooling plate.

[0022] The advantages of the battery pack and the cooling plate described above over the prior art are the same and will not be described in detail here.

[0023] Another object of the present invention is to provide a vehicle that solves the problem that the thermal conductive adhesive in the existing cooling plate easily slides off the cooling plate, thereby reducing the heat dissipation capacity of the battery pack.

[0024] A vehicle comprises: the battery pack described above.

[0025] The advantages of the vehicle and the cooling plate described above over the prior art are the same and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 This is a schematic diagram of a cooling plate according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the partial structure of the cooling plate according to an embodiment of the present utility model;

[0029] Figure 3 This is a schematic structural diagram of the anti-slip net of the cooling plate according to an embodiment of the present utility model.

[0030] Description of reference numerals:

[0031] 1-cooling plate body, 10-glue coating part, 11-bending part; 12-first cooling plate; 13-second cooling plate; 3-anti-slip part, 30-anti-slip net. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0033] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0034] The present invention provides a cooling plate for a battery pack. Figures 1 to 3 The cooling plate includes: a cooling plate body 1, the cooling plate body 1 includes a glue coating portion 10, the glue coating portion 10 is used to apply thermal conductive glue; and an anti-slip part 3, the anti-slip part 3 is connected to the glue coating portion 10, the anti-slip part 3 is used to prevent the thermal conductive glue from sliding off the glue coating portion 10.

[0035] Specifically, Figure 1 Schematic diagram of the cooling plate according to the embodiment of the present invention is shown. Figure 2 The figure shows a partial structural diagram of a cooling plate according to an embodiment of the present invention. The cooling plate body 1 includes a first cooling plate 12 and a second cooling plate 13 connected to each other. The first cooling plate 12 and the second cooling plate 13 are connected to each other, and battery cells are installed between the first cooling plate 12 and the second cooling plate 13. The first cooling plate 12 and the second cooling plate 13 are hollow. By supplying cooling liquid to the cooling plates and conducting heat between the cooling plates and the battery cells, the cooling liquid absorbs heat generated by the battery cells and discharges the heat as the cooling liquid flows, thereby reducing the temperature of the battery cells and improving the service life and reliability of the battery cells.

[0036] However, since the surfaces of the battery cell and the cooling plate are uneven, there is a certain gap between the two. There is a large amount of air in the gap. Air is a poor conductor of heat. The heat generated by the battery cell during operation can only be transferred to the cooling plate through thermal radiation and convection, and the heat dissipation effect is poor. The glue coating part 10 refers to one of the surfaces of the cooling plate in contact with the battery cell. This surface is used to apply thermal conductive glue. The thermal conductive glue is applied on the glue coating part 10. The thermal conductive glue fills the gap between the battery cell and the first cooling plate 12 and the second cooling plate 13, thereby realizing rapid heat exchange between the battery cell and the cooling plate, reducing thermal resistance, and improving the heat dissipation capacity of the battery cell.

[0037] Since the prior art usually applies thermal conductive glue directly to the glue coating portion 10 on the cooling plate, and in the battery cell production process, thermal conductive glue is usually first applied to the glue coating portion 10 on the cooling plate body 1, and then the cooling plate body 1 is transferred to the next assembly process, during the transfer process, the thermal conductive glue flows and slides from the glue coating portion 10 due to various reasons such as its own gravity and collisions, resulting in the thermal conductive glue being unable to completely cover the glue coating portion 10, and a gap is formed between the cooling plate and the battery cell, which increases the thermal resistance and reduces the heat dissipation capacity of the battery cell. In the embodiment of the present utility model, by connecting the anti-slip part 3 to the glue coating portion 10 on the cooling plate body 1, the anti-slip part 3 can fix the thermal conductive glue, reduce the fluidity of the thermal conductive glue on the glue coating portion 10, and thus prevent the thermal conductive glue from sliding off the cooling plate, thereby improving the heat dissipation capacity of the battery pack. Because the thermally conductive adhesive slides under the influence of gravity, it can be unevenly distributed on the adhesive coating portion 10. This uneven adhesive prevents heat from being evenly and quickly transferred from the battery module to the cooling plate body 1. By providing the anti-slip member 3 to fix the thermally conductive adhesive, it can be evenly distributed on the adhesive coating portion, improving the heat dissipation capacity of the battery pack. The anti-slip member 3 can also reduce the fluidity of the thermally conductive adhesive on the adhesive coating portion, reducing the additional cleaning and rework steps caused by the adhesive flowing, simplifying the production process, and saving time and cost.

[0038] Further, refer to Figure 3 The anti-slip part 3 is an anti-slip net 30 , and the anti-slip net 30 is connected to the rubber coating part 10 .

[0039] Specifically, Figure 3The schematic diagram of the structure of the anti-skid net 30 on the cooling plate according to an embodiment of the present invention is shown. The anti-skid net 30 is designed with a grid structure and fits tightly to the surface of the adhesive coating portion 10. In this embodiment, the grid structure can adapt to the slight unevenness of the surface of the adhesive coating portion 10, and can fill and fit the slight depressions of the uneven surface, ensuring that the thermal adhesive is in close contact with the surface of the cooling plate body, reducing air gaps, and thus improving the heat conduction efficiency; the grid structure increases the surface area of ​​the anti-skid net 30, thereby increasing the contact area between the thermal adhesive and the cooling plate body 1. The larger contact area allows heat to be transferred from the thermal adhesive to the anti-skid net more quickly, and then to the cooling plate, thereby improving the overall heat dissipation efficiency. The anti-skid net 30 with a grid structure can provide more connection points with the cooling plate body 1, ensuring that the thermal adhesive is evenly and firmly fixed to the surface of the cooling plate body 1. Even if the battery pack is subjected to slight vibration or tilt during the dynamic process of assembly, the displacement and risk of the thermal adhesive falling off can be greatly reduced. Thermal adhesive can be stored inside the grid cavity. Even if the battery cell or other components scratch the thermal adhesive, the thermal adhesive in the grid cavity can be preserved, avoiding the situation where the thermal adhesive on the adhesive coating part 10 is completely taken away when it is scratched.

[0040] Furthermore, the material of the anti-skid net 30 can be flame-retardant material, high-temperature resistant material, etc. The embodiment of the present application does not specifically limit the specific type of the material of the anti-skid net 30.

[0041] Furthermore, the anti-slip member 3 is an anti-slip plate, and the material of the anti-slip plate is a porous material.

[0042] Specifically, the material of the anti-slip plate is a porous material, and the porous material can be any one of: porous metal material, porous polymer, ceramic porous material, and carbon-based porous material. The embodiment of the present application does not specifically limit the specific type of material of the anti-slip plate.

[0043] In this embodiment, the anti-slip plate is made of a porous material with numerous pores both inside and on its surface. These pore edges form numerous physical contact points. In addition to mechanical fixation, capillary action further strengthens the interaction between the thermally conductive adhesive and the anti-slip plate, ensuring that the adhesive remains firmly attached to the cooling plate body 1 and resists detachment. Furthermore, the numerous pores in the porous material increase the material's surface area. More surface area means more areas available for heat exchange, accelerating heat transfer from high-temperature areas (such as the heat carried by the thermally conductive adhesive) to low-temperature areas (the cooling plate body 1 and its surroundings), further enhancing the battery pack's heat dissipation capabilities.

[0044] Furthermore, the anti-slip component 3 is an anti-slip gasket, and the friction force of the anti-slip gasket is greater than the friction force of the cooling plate body 1.

[0045] Specifically, the anti-slip gasket can be made of silicone or other high-viscosity, high-temperature resistant elastic materials. The friction of the anti-slip gasket is greater than the friction of the cooling plate body 1. When the anti-slip gasket is placed between the thermal adhesive and the cooling plate, the friction of the anti-slip gasket is enhanced. Even if the battery pack encounters complex dynamic conditions such as vibration and tilt during assembly, the thermal adhesive can be stably attached to the adhesive coating part 10, which greatly reduces the risk of slippage and avoids any gaps in the heat conduction path, thereby effectively reducing thermal resistance and further improving the heat dissipation capacity of the battery.

[0046] Furthermore, a plurality of anti-slip parts 3 are connected to one of the glue coating parts 10 at intervals.

[0047] Specifically, if Figure 3 As shown, the adhesive coating portion 10 is a surface having any shape. This shape can be regular (e.g., linear, rectangular, semicircular, etc.) or irregular. In practical applications, by spacing multiple anti-slip members 3 on the surface of any shape, anti-slip members 3 can be placed in different areas according to the specific shape, effectively filling potential heat dissipation blind spots and optimizing the heat transfer path. The multi-point fixed layout promotes more uniform distribution of the thermal conductive adhesive on the cooling plate, ensuring that heat energy is evenly transferred along the entire cooling plate, reducing the formation of hot spots, making the temperature field distribution within the battery pack more uniform, and improving the overall heat dissipation efficiency.

[0048] In addition, for the longer glue coating portion 10, multiple anti-slip parts 3 can be set at intervals along the length. Multiple anti-slip parts 3 can ensure that the thermal conductive adhesive can be firmly connected to the cooling plate, and can avoid the increase in cost caused by setting anti-slip parts 3 on the entire longer glue coating portion 10. The appropriate number of anti-slip parts 3 can be selected according to the length to reduce costs.

[0049] Furthermore, the cooling plate body 1 includes a plurality of curved portions 11, which are connected in sequence in a serpentine arrangement. The surface of each curved portion 11 in contact with the battery module is provided with the glue coating portion 10, and each glue coating portion 10 is connected to the anti-slip part 3.

[0050] Specifically, if Figure 1 and Figure 2As shown, the cooling plate body 1 is provided with a plurality of curved portions 11, each of which is arc-shaped and has the same curvature as a cylinder. The plurality of curved portions 11 are connected in sequence, so that the cooling plate body 1 is arranged in a serpentine shape. The first cooling plate 12 and the second cooling plate 13 are both provided with curved portions 11. A cylindrical installation space is formed between two adjacent curved portions 11 between the first cooling plate 12 and the second cooling plate 13. The cylindrical battery cell is installed in the cylindrical installation space. By adopting the design of the serpentine arrangement of the curved portions 11, the cooling plate can more closely conform to the contour changes of the cylindrical battery cell, and the cooling plate and the battery cell are effectively fitted. This not only maximizes the contact area, but also ensures the continuity of the heat conduction path, reducing energy loss during heat transfer.

[0051] By arranging the adhesive coating 10 and anti-slip member 3 on the contact surface of each curved portion 11 with the battery module, a continuous and uniform heat conduction network is effectively constructed. Each point is a heat dissipation node, significantly improving the efficiency of heat transfer, reducing thermal resistance, and accelerating the transfer of heat from the battery cell to the cooling plate, thereby improving the overall heat dissipation capacity. Each adhesive coating 10 is fixed with a corresponding anti-slip member 3. Even if the battery pack experiences harsh operating conditions such as vibration and temperature fluctuations, the thermal conductive adhesive can be effectively prevented from shifting or falling off due to external forces, further improving the heat dissipation capacity of the battery module.

[0052] Furthermore, the anti-slip member 3 is detachably connected to the glue coating portion 10 .

[0053] Specifically, the detachable connection between the anti-slip part 3 and the rubber coating part 10 can be a snap connection, a bolt connection, a magnetic connection, etc. For example, mounting holes can be preset on the anti-slip part 3 and the rubber coating part, and the connection between the anti-slip part 3 and the rubber coating part 10 is achieved by a combination of bolts and nuts.

[0054] In actual applications, by detachably connecting the anti-slip part 3 to the glue coating part, when the thermal conductive glue needs to be checked or replaced, the anti-slip part can be removed, which simplifies the maintenance process and reduces the maintenance cost and time of the battery pack.

[0055] As a preferred technical solution, the anti-slip member 3 can be attached to the adhesive coating portion 10

[0056] Specifically, the anti-slip part 3 is provided with adhesive backing on the surface in contact with the cooling plate body 1, and the anti-slip part 3 is adhered to the adhesive portion 10 through the adhesive backing. In actual applications, the anti-slip part 3 is installed by adhesive bonding. On the one hand, it ensures that the anti-slip part 3 and the adhesive portion 10 have a stronger fit strength, which can effectively avoid the potential loosening risk caused by mechanical fixation. Even under long-term vibration or extreme temperature changes, the anti-slip part 3 can still be firmly connected to the cooling plate body 1, maintaining the lasting effectiveness of its anti-slip function. On the other hand, compared with other fixing means, such as bolt fastening and snap connection, the adhesive bonding method usually requires fewer processing steps and time, thereby reducing production costs and improving production efficiency. In addition, the adhesive bonding method does not require the provision of additional fixing structures and fixings, making the structure of the cooling plate body 1 and the anti-slip part 3 simpler and reducing costs.

[0057] Compared with the prior art, the cooling plate of the present invention has the following advantages:

[0058] The cooling plate provided in the embodiment of the present invention has an anti-slip member 3 provided on the adhesive coating portion 10 of the cooling plate body 1. The anti-slip member 3 can fix the thermally conductive adhesive, reduce the fluidity of the thermally conductive adhesive on the adhesive coating portion 10, and thus prevent the thermally conductive adhesive from sliding off the cooling plate, thereby improving the heat dissipation capacity of the battery pack. The embodiment of the present invention also provides a battery pack including: the above-mentioned cooling plate.

[0059] The specific structure and working principle of the cooling plate have been described in detail in the above embodiments and will not be repeated here.

[0060] Furthermore, the battery pack further includes:

[0061] Multiple rows of battery modules, with the cooling plate disposed between two adjacent rows of battery modules; and a thermally conductive adhesive layer filled between the battery modules and the cooling plate.

[0062] The battery pack provided in the embodiment of the present application is provided with a cooling plate between the battery modules, and an anti-slip part 3 is provided on the adhesive coating part 10 on the cooling plate body 1. The anti-slip part 3 can fix the thermal conductive adhesive, reduce the fluidity of the thermal conductive adhesive on the adhesive coating part 10, and thus prevent the thermal conductive adhesive from sliding off the cooling plate, thereby improving the heat dissipation capacity of the battery pack. Since the thermal conductive adhesive slides under the action of gravity, it will cause the thermal conductive adhesive to be unevenly distributed on the adhesive coating part 10. The uneven thermal conductive adhesive will make it impossible to transfer heat evenly and quickly from the battery module to the cooling plate body 1. By providing the anti-slip part 3 to fix the thermal conductive adhesive, the thermal conductive adhesive can be evenly distributed on the adhesive coating part, thereby improving the heat dissipation capacity of the battery pack. The anti-slip part 3 can reduce the fluidity of the thermal conductive adhesive on the adhesive coating part, reduce the extra cleaning and rework steps caused by the flow of the colloid, simplify the production process, and save time and cost.

[0063] The embodiment of the present invention provides another purpose of a vehicle, including: the battery pack described above.

[0064] The battery pack in the vehicle provided in the embodiment of the present application is provided with a cooling plate between the battery modules, and an anti-slip part 3 is provided on the adhesive coating part 10 on the cooling plate body 1. The anti-slip part 3 can fix the thermal conductive adhesive, reduce the fluidity of the thermal conductive adhesive on the adhesive coating part 10, and thus prevent the thermal conductive adhesive from sliding off the cooling plate, thereby improving the heat dissipation capacity of the battery pack. Since the thermal conductive adhesive slides under the action of gravity, it will cause the thermal conductive adhesive to be unevenly distributed on the adhesive coating part 10. The uneven thermal conductive adhesive will make it impossible to transfer heat evenly and quickly from the battery module to the cooling plate body 1. By providing the anti-slip part 3 to fix the thermal conductive adhesive, the thermal conductive adhesive can be evenly distributed on the adhesive coating part, thereby improving the heat dissipation capacity of the battery pack. The anti-slip part 3 can reduce the fluidity of the thermal conductive adhesive on the adhesive coating part, reduce the extra cleaning and rework steps caused by the flow of the adhesive, simplify the production process, and save time and cost.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cooling plate, applied to a battery pack, characterized in that: The cooling plate comprises: A cooling plate body (1), the cooling plate body (1) comprising a glue coating portion (10), the glue coating portion (10) being used for coating thermally conductive glue; and an anti-slip part (3), wherein the anti-slip part (3) is connected to the glue coating part (10), and the anti-slip part (3) is used to prevent the thermal conductive glue from sliding off the glue coating part (10).

2. The cooling plate according to claim 1, wherein The anti-slip part (3) is an anti-slip net (30), and the anti-slip net (30) is connected to the glue coating part (10).

3. The cooling plate according to claim 1, wherein The anti-slip part (3) is an anti-slip plate, and the material of the anti-slip plate is a porous material.

4. The cooling plate according to claim 1, wherein The anti-slip part (3) is an anti-slip gasket, and the friction force of the anti-slip gasket is greater than the friction force of the cooling plate body.

5. The cooling plate according to claim 1, wherein A plurality of anti-slip parts (3) are connected at intervals on one of the glue coating parts (10).

6. The cooling plate according to any one of claims 1 to 5, characterized in that: The cooling plate body (1) includes a plurality of curved portions (11), which are connected in sequence and arranged in a serpentine shape. The surface of each curved portion (11) in contact with the battery module is provided with the glue coating portion (10), and each glue coating portion (10) is connected to the anti-slip part (3).

7. The cooling plate according to any one of claims 1 to 6, characterized in that: The anti-slip part (3) is detachably connected to the glue coating part (10).

8. A battery pack, characterized in that: The battery pack comprises: the cooling plate according to any one of claims 1 to 7.

9. The battery pack according to claim 8, characterized in that: The battery pack further includes: Multiple rows of battery modules, with the cooling plate provided between two adjacent rows of battery modules; and a heat-conducting adhesive layer, wherein the heat-conducting adhesive layer is filled between the battery module and the cooling plate.

10. A vehicle, characterized in that: The vehicle comprises: the battery pack according to any one of claims 8-9.

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