Liquid cooling assembly, cabinet and battery pack

Abstract

The application provides a liquid cooling assembly, a box body and a battery pack, and belongs to the technical field of batteries. The liquid cooling assembly comprises a first cooling plate and a second cooling plate. The second cooling plate is arranged on one side of the first cooling plate in a second direction, and the plane of the second cooling plate is arranged at an angle with the plane of the first cooling plate. The first cooling plate and the second cooling plate are communicated through a first liquid inlet channel and a first liquid outlet channel, and the first liquid inlet channel and the first liquid outlet channel are arranged in the second cooling plate. The first direction and the second direction intersect each other. The bottom and the side of the battery module can be cooled by the first cooling plate and the second cooling plate respectively, and the cooling liquid can circulate and flow in the first cooling plate and the second cooling plate. No additional connecting pipeline is needed, the integration of the liquid cooling assembly is improved, the space occupation is reduced, and the material cost is saved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and more particularly to a liquid cooling component, housing, and battery pack. Background Technology

[0002] In related technologies, the liquid cooling components of the battery pack are usually located at the bottom of the cell. When liquid cooling is required on the side of the cell, the side liquid cooling and the bottom liquid cooling usually need to be connected by pipes to achieve the circulation of coolant, which will result in excessive internal space occupation of the battery pack and increase material costs. Utility Model Content

[0003] This application provides a liquid cooling component, housing, and battery pack, which improves integration, reduces space occupation, and enhances the heat dissipation and cooling effect of the battery module, thereby at least partially solving the above-mentioned technical problems.

[0004] To achieve the above objectives, according to a first aspect of this application, a liquid cooling assembly is provided, comprising:

[0005] A first cooling plate, wherein a first flow channel extending in a first direction is provided in the first cooling plate;

[0006] The second cooling plate is disposed on one side of the first cooling plate in the second direction, and the plane of the second cooling plate is disposed at an angle to the plane of the first cooling plate; a second flow channel extending along the first direction is provided inside the second cooling plate;

[0007] The first cooling plate and the second cooling plate are connected by a first liquid inlet channel and a first liquid outlet channel, and the first liquid inlet channel and the first liquid outlet channel are located inside the second cooling plate, with the first direction and the second direction intersecting each other.

[0008] The first and second cooling plates, which are set at an angle, can cool the bottom and sides of the battery module respectively. The first flow channel in the first cooling plate and the second flow channel in the second cooling plate are interconnected through the first liquid inlet channel and the first liquid outlet channel, which allows the coolant to circulate in the first and second cooling plates without the need for additional connecting pipes. This improves the integration of the liquid cooling components, reduces space occupation, and saves material costs.

[0009] In some embodiments, the first liquid inlet channel and the first liquid outlet channel are located at the same end of the second cooling plate in the first direction.

[0010] The first liquid inlet channel and the first liquid outlet channel are located at the same end of the second cooling plate in the first direction, which can reduce the number of openings and sealing points, reduce the risk of leakage, improve the reliability of the liquid cooling assembly, and make the flow path of the coolant in the second cooling plate longer, absorb more heat, and ensure cooling efficiency and uniform temperature distribution.

[0011] In some embodiments, the second cooling plate is provided with a first sealing block and a second sealing block at opposite ends in the first direction.

[0012] The first and second sealing blocks can seal the opposite ends of the second cooling plate in the first direction, forming a closed cavity inside the second cooling plate and achieving the effect of coolant circulating between the first and second cooling plates.

[0013] In some embodiments, the first cooling plate is located on the side opposite to the second cooling plate, and a first opening is provided at the first liquid inlet channel and the first liquid outlet channel.

[0014] By using the first opening at the first liquid inlet channel and the first liquid outlet channel on the side of the first cooling plate away from the second cooling plate, the first liquid inlet channel and the first liquid outlet channel can be easily constructed, realizing the connection between the first cooling plate and the second cooling plate. This allows the coolant to circulate between the first cooling plate and the second cooling plate, and reduces the number of openings, thus lowering the risk of leakage.

[0015] In some embodiments, a third sealing block is provided at the first opening.

[0016] The third sealing block can seal the first opening, thereby sealing the first cooling plate and preventing coolant leakage from the first cooling plate. This allows the coolant to circulate between the first and second cooling plates, ensuring the cooling effect.

[0017] In some embodiments, the third sealing block includes a sealing portion and a partition portion connected to each other, the sealing portion being adapted to block the first opening, and the partition portion being adapted to separate the first liquid inlet channel and the first liquid outlet channel.

[0018] The sealing part in the third sealing block can seal the first opening to prevent coolant from leaking from the first opening in the liquid cooling assembly. The partition part can separate the first liquid inlet channel and the first liquid outlet channel. The first liquid inlet channel enables liquid to enter and the first liquid outlet channel enables liquid to exit, ensuring the coverage of the flow path of the coolant in the second cooling plate and improving the cooling effect.

[0019] In some embodiments, the first cooling plate and the second cooling plate are integrally formed.

[0020] By molding the first and second cooling plates into a single piece, the structural reliability of the liquid cooling assembly can be improved, the risk of leakage can be reduced, and a good fusion of the first and second cooling plates can be achieved, ensuring a continuous and uninterrupted heat transfer path, thereby improving heat exchange efficiency and temperature uniformity.

[0021] In some embodiments, the second cooling plate is disposed in the middle of the first cooling plate in a third-direction orientation;

[0022] Among them, the first direction, the second direction, and the third direction intersect each other in pairs.

[0023] That is, the first and second cooling plates form an inverted T-shaped structure, which can improve the structural compactness, achieve simultaneous contact and cooling of the bottom and sides of the battery module, improve temperature uniformity, and ensure the efficiency of the coolant circulation in the first and second cooling plates, thus ensuring cooling efficiency.

[0024] According to a second aspect of this application, a housing is provided, including at least one liquid cooling component as described above.

[0025] The housing provided in this application embodiment has all the beneficial effects of the liquid cooling assembly described above, which will not be repeated here.

[0026] In some embodiments, the housing further includes:

[0027] Side plates, two side plates are respectively disposed on opposite sides of at least one liquid cooling component in the third direction, and the side plates are connected to at least one liquid cooling component;

[0028] The end plate includes a front end plate and a rear end plate, which are respectively disposed at opposite ends of the side plate in a first direction;

[0029] The side panels, end panels, and at least one liquid cooling component are arranged to form a housing, with the first direction, the second direction, and the third direction intersecting each other.

[0030] The enclosure, formed by side panels, end panels, and a liquid cooling system, has a first cooling plate within the liquid cooling system serving as the bottom. The side and end panels form the frame of the enclosure, while a second cooling plate is located inside, dividing the enclosure into multiple accommodating chambers. When the enclosure is used to house battery modules, the bottom of the battery modules contacts the first cooling plate, while the sides of the battery modules contact the second liquid cooling plate, improving heat dissipation for the battery modules and resulting in a compact structure.

[0031] In some embodiments, the box body also includes expansion beams;

[0032] The expansion beam is located on the side of the liquid cooling assembly near the front end plate, and the expansion beam and the front end plate are spaced apart along the first direction.

[0033] The expansion beams divide the enclosure into cell compartments and electrical compartments, thus isolating the battery modules and electrical components and improving safety. At the same time, the expansion beams also increase the structural strength of the enclosure.

[0034] In some embodiments, the side panel includes:

[0035] The third cooling plate has a third flow channel extending in the first direction.

[0036] The fourth cooling plate is arranged at an angle to the plane of the third cooling plate, and the fourth cooling plate is located on the side of the third cooling plate in the third direction; a fourth flow channel extending along the first direction is provided inside the fourth cooling plate.

[0037] The third and fourth cooling plates are interconnected.

[0038] That is, the side panel includes a third and a fourth cooling plate, arranged in an L-shape, allowing the coolant to circulate between the third and fourth cooling plates. The inclusion of the third and fourth cooling plates in the side panel increases the cooling area of ​​the enclosure, thereby improving heat dissipation and cooling efficiency.

[0039] In some embodiments, the enclosure also includes sealing strips;

[0040] Two sealing strips are used to seal the opposite ends of the first and third cooling plates in the first direction.

[0041] By setting sealing strips, the opposite ends of the first and third cooling plates in the first direction can be sealed to prevent coolant from leaking from the first and third cooling plates, and to improve the connection stability of the side plates and liquid cooling components.

[0042] In some embodiments, a fourth sealing block and a fifth sealing block are respectively provided at opposite ends of the fourth cooling plate in the first direction.

[0043] The fourth and fifth sealing blocks can seal the opposite ends of the fourth cooling plate in the first direction, forming a closed cavity inside the fourth cooling plate, thus achieving the effect of coolant circulating between the third and fourth cooling plates.

[0044] According to a third aspect of this application, a battery pack is also provided, including the housing as described above.

[0045] The battery pack provided in this application embodiment has all the beneficial effects of the liquid cooling component as described above, which will not be repeated here.

[0046] In some embodiments, the battery pack further includes a battery module and a thermally conductive adhesive layer;

[0047] The battery module is housed inside the casing, and a thermally conductive adhesive layer is placed between the battery module and the casing.

[0048] The thermally conductive adhesive layer can improve the thermal conductivity between the battery module and the housing, and enhance the adhesion between the battery module and the housing, thus ensuring the structural stability of the battery pack. Attached Figure Description

[0049] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0050] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0051] Figure 1 This is a three-dimensional structural schematic diagram of the liquid cooling component provided in the embodiments of this application;

[0052] Figure 2 This is a bottom view of the liquid cooling assembly provided in the embodiments of this application;

[0053] Figure 3 yes Figure 2 Sectional view at point AA;

[0054] Figure 4 This is a schematic diagram of the structure of the third sealing block provided in the embodiments of this application;

[0055] Figure 5 This is an exploded structural diagram of the box provided in the embodiments of this application;

[0056] Figure 6 This is a three-dimensional structural diagram of the box provided in the embodiments of this application;

[0057] Figure 7 This is a three-dimensional structural diagram of the side plate provided in the embodiments of this application;

[0058] Figure 8 This is a bottom view of the side panel provided in the embodiments of this application;

[0059] Figure 9 yes Figure 8 Sectional view at point BB;

[0060] Figure 10 This is a schematic diagram of the cross-sectional structure of the box provided in the embodiments of this application;

[0061] Figure 11This is a schematic diagram of the battery pack provided in the embodiments of this application.

[0062] Explanation of reference numerals in the attached figures:

[0063] 100. Liquid cooling assembly; 10. First cooling plate; 11. First flow channel; 12. First opening; 13. Third sealing block; 131. Sealing part; 132. Separating part; 133. Connecting part; 20. Second cooling plate; 21. Second flow channel; 22. First liquid inlet channel; 23. First liquid outlet channel; 24. First sealing block; 25. Second sealing block;

[0064] 200. Housing; 210. Side plate; 211. Third cooling plate; 2111. Third flow channel; 2112. Second opening; 2113. Third opening; 2115. Fourth sealing block; 2116. Fifth sealing block; 212. Fourth cooling plate; 2121. Fourth flow channel; 2122. Second liquid inlet channel; 2123. Second liquid outlet channel; 2124. Sixth sealing block; 2125. Seventh sealing block; 213. Main liquid inlet; 214. Main liquid outlet; 220. End plate; 230. Expansion beam; 240. Sealing strip;

[0065] 300. Battery pack; 310. Battery module; 320. Thermally conductive adhesive layer. Detailed Implementation

[0066] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0067] According to the first aspect of this application, Figures 1-3 As shown, this application provides a liquid cooling assembly 100, including a first cooling plate 10 and a second cooling plate 20. The first cooling plate 10 extends along a first direction X, and a first flow channel 11 is provided within the first cooling plate 10. The second cooling plate 20 is disposed on one side of the first cooling plate 10 in a second direction Z, and the plane of the second cooling plate 20 is angled to the plane of the first cooling plate 10. A second flow channel 21 is provided within the second cooling plate 20. The first cooling plate 10 and the second cooling plate 20 are connected by a first liquid inlet channel 22 and a first liquid outlet channel 23, and the first liquid inlet channel 22 and the first liquid outlet channel 23 are disposed within the second cooling plate 20. The first direction X and the second direction Z intersect each other.

[0068] The first cooling plate 10 and the second cooling plate 20, which are arranged at an angle, can cool the bottom and sides of the battery module 310 respectively. The first flow channel 11 in the first cooling plate 10 and the second flow channel 21 in the second cooling plate 20 are interconnected through the first liquid inlet channel 22 and the first liquid outlet channel 23, which allows the coolant to circulate in the first cooling plate 10 and the second cooling plate 20 without the need for additional connecting pipes. This improves the integration of the liquid cooling component 100, reduces space occupation, and saves material costs.

[0069] In some embodiments, the first liquid inlet channel 22 and the first liquid outlet channel 23 are located at the same end of the second cooling plate 20 in the first direction X.

[0070] The first liquid inlet channel 22 and the first liquid outlet channel 23 are located at the same end of the second cooling plate 20 in the first direction X. This reduces the number of openings and sealing points, lowers the risk of leakage, improves the reliability of the liquid cooling assembly 100, and allows the coolant to have a longer flow path in the second cooling plate 20, absorbing more heat and ensuring cooling efficiency and uniform temperature distribution.

[0071] For example, such as Figures 1-3 As shown, the plane containing the second cooling plate 20 is perpendicular to the plane containing the first cooling plate 10. Figure 3 As shown, the arrows indicate the flow direction of the coolant. The coolant can flow through the first flow channel 11 of the first cooling plate 10, and enter the second cooling plate 20 through the first inlet channel 22. After flowing along the second flow channel 21 to the other end, it returns to the first cooling plate 10 through the first outlet channel 23, thereby realizing the circulation of the coolant between the first cooling plate 10 and the second cooling plate 20.

[0072] In some embodiments, such as Figure 1 As shown, the second cooling plate 20 has a first sealing block 24 and a second sealing block 25 respectively at its two opposite ends in the first direction X.

[0073] The first sealing block 24 and the second sealing block 25 can seal the opposite ends of the second cooling plate 20 in the first direction X, so that a closed cavity is formed inside the second cooling plate 20, and the coolant can circulate between the first cooling plate 10 and the second cooling plate 20.

[0074] In some embodiments, such as Figures 2-3 As shown, the first cooling plate 10 is located on the side opposite to the second cooling plate 20, and a first opening 12 is provided at the first liquid inlet channel 22 and the first liquid outlet channel 23.

[0075] By using the first opening 12 at the first liquid inlet channel 22 and the first liquid outlet channel 23 on the side of the first cooling plate 10 away from the second cooling plate 20, the first liquid inlet channel 22 and the first liquid outlet channel 23 can be easily constructed, realizing the connection between the first cooling plate 10 and the second cooling plate 20. This allows the coolant to circulate between the first cooling plate 10 and the second cooling plate 20, and reduces the number of openings, thus lowering the risk of leakage.

[0076] For example, the first cooling plate 10 and the second cooling plate 20 can be aluminum extrusion profiles. By providing a first opening 12 on the side of the first cooling plate 10 away from the second cooling plate 20, a first liquid inlet channel 22 and a first liquid outlet channel 23 are constructed in the second cooling plate 20, so that the first cooling plate 10 and the second cooling plate 20 are interconnected.

[0077] In some embodiments, such as Figures 1-3 As shown, a third sealing block 13 is provided at the first opening 12.

[0078] The third sealing block 13 can seal the first opening 12, thereby sealing the first cooling plate 10, preventing coolant from leaking from the first cooling plate 10, and allowing the coolant to circulate between the first cooling plate 10 and the second cooling plate 20 to ensure the cooling effect.

[0079] In some embodiments, such as Figure 4 As shown, the third sealing block 13 includes a sealing part 131 and a separating part 132 connected to each other. The sealing part 131 is adapted to block the first opening 12, and the separating part 132 is adapted to separate the first liquid inlet channel 22 and the first liquid outlet channel 23.

[0080] The sealing part 131 in the third sealing block 13 can seal the first opening 12 to prevent the coolant in the liquid cooling assembly 100 from leaking from the first opening 12. The partition part 132 can separate the first liquid inlet channel 22 and the first liquid outlet channel 23. Liquid is introduced through the first liquid inlet channel 22 and liquid is discharged through the first liquid outlet channel 23, ensuring the coverage of the flow path of the coolant in the second cooling plate 20 and improving the cooling effect.

[0081] For example, such as Figure 3 and Figure 4 As shown, the third sealing block 13 seals the first opening 12, and the sealing part 131 can cover the first opening 12 to prevent coolant from leaking from the first opening 12. The partition part 132 extends into the second cooling plate 20, forming a first liquid inlet channel 22 and a first liquid outlet channel 23. The coolant in the first cooling plate 10 can enter the second cooling plate 20 through the first liquid inlet channel 22, and after passing through the U-shaped second flow channel 21, it flows back to the first cooling plate 10 through the first liquid outlet channel 23, completing the circulation of coolant.

[0082] In some embodiments, the third sealing block 13 further includes a connecting portion 133, which is adapted to connect to an adjacent liquid cooling assembly 100.

[0083] Different liquid cooling components 100 can be connected through the connecting part 133. During the process of assembling the housing 200 by multiple liquid cooling components 100, the third sealing block 13 can not only achieve the sealing function, but also improve the connection tightness of different liquid cooling components 100 and ensure connection stability.

[0084] In some embodiments, the first cooling plate 10 and the second cooling plate 20 are integrally formed.

[0085] By integrally molding the first cooling plate 10 and the second cooling plate 20, the structural reliability of the liquid cooling assembly 100 can be improved, the risk of leakage can be reduced, and the first cooling plate 10 and the second cooling plate 20 can be well integrated, so that the heat conduction path is continuous and uninterrupted, and the heat exchange efficiency and temperature uniformity can be improved.

[0086] For example, a liquid cooling assembly 100 including a first cooling plate 10 and a second cooling plate 20 is obtained by extruding an aluminum profile through a die, which can improve structural strength, has lightweight characteristics, and has good thermal conductivity.

[0087] In some embodiments, such as Figures 1-3 As shown, the second cooling plate 20 is disposed in the middle of the first cooling plate 10 in the third direction Y. The first direction X, the second direction Z, and the third direction Y intersect each other.

[0088] That is, the first cooling plate 10 and the second cooling plate 20 form an inverted T-shaped structure, which can improve the structural compactness, achieve simultaneous contact and cooling of the bottom and sides of the battery module 310, improve temperature uniformity, and ensure the efficiency of the coolant circulation in the first cooling plate 10 and the second cooling plate 20, thus ensuring cooling efficiency.

[0089] According to the second aspect of this application, such as Figures 5-6 As shown, a housing 200 is provided, including at least one liquid cooling component 100 as described above.

[0090] The housing 200 provided in this application embodiment has all the beneficial effects of the liquid cooling assembly 100 as described above, and will not be repeated here.

[0091] In some embodiments, such as Figure 5 and Figure 6As shown, the housing 200 also includes side plates 210 and end plates 220. The two side plates 210 are respectively disposed on opposite sides of at least one liquid cooling component 100 in the third direction Y. The side plates 210 are connected to the first cooling plate 10 in the liquid cooling component 100. The end plate 220 includes a front plate 220 and a rear plate 220, which are respectively disposed at opposite ends of the side plates 210 in the first direction X. The side plates 210, end plates 220, and at least one liquid cooling component 100 enclose the housing 200, with the first direction X, the second direction Z, and the third direction Y intersecting each other.

[0092] The housing 200, formed by the side plates 210, end plates 220, and liquid cooling assembly 100, has a first cooling plate 10 in the liquid cooling assembly 100 serving as the bottom of the housing 200. The side plates 210 and end plates 220 form the frame of the housing 200, and the second cooling plate 20 in the liquid cooling assembly 100 is located inside the housing 200, dividing the housing 200 into multiple accommodating cavities. When the housing 200 is used to accommodate the battery module 310, the bottom of the battery module 310 can contact the first cooling plate 10 in the liquid cooling assembly 100, while the sides of the battery module 310 can contact the second liquid cooling plate, improving the heat dissipation effect of the battery module 310 and resulting in a compact structure.

[0093] The side plate 210, end plate 220 and liquid cooling assembly 100 can be connected by welding or other methods.

[0094] In some embodiments, such as Figures 5-6 As shown, the housing 200 also includes an expansion beam 230. The expansion beam 230 is disposed on the side of the liquid cooling assembly 100 near the front end plate 220, and the expansion beam 230 and the front end plate 220 are spaced apart along the first direction X.

[0095] The expansion beam 230 divides the housing 200 into a cell compartment and an electrical compartment, thereby isolating the battery module 310 and electrical components and improving safety. At the same time, the expansion beam 230 also increases the structural strength of the housing 200.

[0096] In some embodiments, such as Figures 7-9 As shown, the side plate 210 includes a third cooling plate 211 and a fourth cooling plate 212. The third cooling plate 211 is provided with a fourth flow channel 2121 extending along the first direction X. The plane where the fourth cooling plate 212 is located is set at an angle to the plane where the third cooling plate 211 is located, and the fourth cooling plate 212 is located on the third cooling plate 211 on the third direction Y. The fourth flow channel 2121 is provided with a fourth flow channel 2121 extending along the first direction X. The third cooling plate 211 and the fourth cooling plate 212 are interconnected.

[0097] For example, such as Figures 7-9 As shown, the side panel 210 includes a third cooling plate 211 and a fourth cooling plate 212, arranged in an L-shape, allowing coolant to circulate between the third cooling plate 211 and the fourth cooling plate 212. By including the third cooling plate 211 and the fourth cooling plate 212 in the side panel 210, the cooling area of ​​the housing 200 can be increased, thereby improving the heat dissipation and cooling effect.

[0098] like Figure 5 and Figure 6 As shown, when assembled into a housing 200, the third cooling plate 211 in the side plate 210 can be connected to the first cooling plate 10 in the liquid cooling assembly 100 to form the bottom plate of the housing 200, while the fourth cooling plate 212 in the side plate 210 can serve as the side wall of the housing 200, forming the frame of the housing 200 together with the front plate 220 and the rear plate 220.

[0099] In some embodiments, such as Figure 9 As shown, the third cooling plate 211 and the fourth cooling plate 212 are connected by the second liquid inlet channel 2122 and the second liquid outlet channel 2123, and the second liquid inlet channel 2122 and the second liquid outlet channel 2123 are located at opposite ends of the side plate 210 in the first direction X.

[0100] The second liquid inlet channel 2122 and the second liquid outlet channel 2123 are respectively disposed at opposite ends of the side plate 210 in the first direction X, which can realize liquid inlet at one end and liquid outlet at the other end, improve the uniformity of coolant distribution in the side plate 210, reduce coolant pressure drop, and improve cooling efficiency.

[0101] like Figure 9 As shown, the arrows indicate the flow direction of the coolant. The coolant can flow through the third flow channel 2111 of the third cooling plate 211, and enter the fourth cooling plate 212 through the second inlet channel 2122. After flowing along the fourth flow channel 2121 to the other end, it returns to the third cooling plate 211 through the second outlet channel 2123, thus realizing the circulation of coolant between the third cooling plate 211 and the fourth cooling plate 212.

[0102] In some embodiments, such as Figure 5 and Figure 6 As shown, the housing 200 also includes sealing strips 240, which are used to seal the opposite ends of the first cooling plate 10 and the third cooling plate 211 in the first direction X.

[0103] By setting the sealing strip 240, the opposite ends of the first cooling plate 10 and the third cooling plate 211 in the first direction X can be sealed to prevent coolant from leaking from the first cooling plate 10 and the third cooling plate 211, and to improve the connection stability of the side plate 210 and the liquid cooling assembly 100.

[0104] In some embodiments, such as Figure 7 As shown, the fourth cooling plate 212 is provided with a fourth sealing block 2115 and a fifth sealing block 2116 at opposite ends in the first direction X.

[0105] The fourth sealing block 2115 and the fifth sealing block 2116 can seal the opposite ends of the fourth cooling plate 212 in the first direction X, so that a closed cavity is formed inside the fourth cooling plate 212, and the coolant can circulate between the third cooling plate 211 and the fourth cooling plate 212.

[0106] In some embodiments, such as Figure 8 As shown, on the third cooling plate 211, a second opening 2112 is provided at the second liquid inlet channel 2122, and / or a third opening 2113 is provided at the second liquid outlet channel 2123.

[0107] By using the second opening 2112 at the second liquid inlet channel 2122 and / or the third opening 2113 at the second liquid outlet channel 2123 on the third cooling plate 211, the second liquid inlet channel 2122 and the second liquid outlet channel 2123 can be easily constructed, thereby realizing the connection between the third cooling plate 211 and the fourth cooling plate 212, so that the coolant can circulate between the third cooling plate 211 and the fourth cooling plate 212.

[0108] In some embodiments, such as Figures 7-8 As shown, a sixth sealing block 2124 is provided at the second opening 2112;

[0109] And / or, a seventh sealing block 2125 is provided at the third opening 2113.

[0110] The second opening 2112 can be sealed by the sixth sealing block 2124, and the third opening 2113 can be sealed by the seventh sealing block 2125, thereby sealing the third cooling plate 211 and preventing coolant from leaking from the third cooling plate 211. This allows the coolant to circulate between the third cooling plate 211 and the fourth cooling plate 212, ensuring the cooling effect.

[0111] In some embodiments, the two side plates 210 are respectively provided with a main liquid inlet 213 and a main liquid outlet 214.

[0112] The coolant can be circulated by the main inlet 213 and main outlet 214 respectively set on the two side plates 210, ensuring the cooling and heat dissipation effect of the housing 200.

[0113] like Figure 10As shown, the arrows indicate the flow direction of the coolant. The coolant enters the housing 200 from the main inlet 213 on one of the side plates 210, flows into the adjacent liquid cooling assembly 100, and finally flows out from the main outlet 214 on the other side plate 210. Since the liquid cooling assembly 100 includes a first cooling plate 10 and a second cooling plate 20, and the side plate 210 includes a third cooling plate 211 and a fourth cooling plate 212, when the coolant circulates in the housing 200, it can be cooled by the first cooling plate 10 and the third cooling plate 211 located at the bottom of the housing 200, as well as by the second cooling plate 20 and the fourth cooling plate 212 located on the side.

[0114] According to the third aspect of this application, such as Figure 11 As shown, a battery pack 300 is also provided, including the housing 200 as described above.

[0115] The battery pack 300 provided in this application embodiment has all the beneficial effects of the liquid cooling component 100 as described above, and will not be repeated here.

[0116] In some embodiments, such as Figure 11 As shown, the battery pack 300 also includes a battery module 310 and a thermally conductive adhesive layer 320. The battery module 310 is disposed inside the housing 200, and the thermally conductive adhesive layer 320 is disposed between the battery module 310 and the housing 200.

[0117] The thermally conductive adhesive layer 320 can improve the thermal conductivity between the battery module 310 and the housing 200, and improve the adhesion between the battery module 310 and the housing 200, thus ensuring the structural stability of the battery pack 300.

[0118] like Figure 10 As shown, in the liquid cooling assembly 100, the second cooling plate 20 is located inside the housing 200, dividing the housing 200 into multiple receiving cavities. Multiple battery modules 310 are respectively disposed in different receiving cavities, ensuring that the bottom and sides of the battery modules 310 can contact the cooling plate, guaranteeing cooling effect. Furthermore, a thermally conductive adhesive layer 320 is provided between the battery modules 310 and the housing 200. The thermally conductive adhesive layer 320 can improve the thermal conductivity between the battery modules 310 and the housing 200, and also improve the adhesion between the battery modules 310 and the housing 200, thereby ensuring the structural stability of the battery pack 300.

[0119] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0120] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0121] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A liquid cooling assembly, characterized in that, include: A first cooling plate extends along a first direction, and a first flow channel is provided inside the first cooling plate; The second cooling plate is disposed on one side of the first cooling plate in the second direction, and the plane of the second cooling plate is set at an angle to the plane of the first cooling plate; a second flow channel is provided inside the second cooling plate; The first cooling plate and the second cooling plate are connected by a first liquid inlet channel and a first liquid outlet channel, and the first liquid inlet channel and the first liquid outlet channel are disposed inside the second cooling plate, with the first direction and the second direction intersecting each other.

2. The liquid cooling assembly according to claim 1, characterized in that, The first liquid inlet channel and the first liquid outlet channel are located at the same end of the second cooling plate in the first direction.

3. The liquid cooling assembly according to claim 1, characterized in that, The second cooling plate is provided with a first sealing block and a second sealing block at opposite ends in the first direction.

4. The liquid cooling assembly according to claim 1, characterized in that, The first cooling plate is located on the side opposite to the second cooling plate, and the first liquid inlet channel and the first liquid outlet channel are provided with first openings.

5. The liquid cooling assembly according to claim 4, characterized in that, A third sealing block is provided at the first opening.

6. The liquid cooling assembly according to claim 5, characterized in that, The third sealing block includes a sealing part and a separating part connected to each other. The sealing part is adapted to block the first opening, and the separating part is adapted to separate the first liquid inlet channel and the first liquid outlet channel.

7. The liquid cooling assembly according to any one of claims 1-6, characterized in that, The first cooling plate and the second cooling plate are integrally formed.

8. The liquid cooling assembly according to any one of claims 1-6, characterized in that, The second cooling plate is disposed in the middle of the first cooling plate in a third-direction orientation; The first direction, the second direction, and the third direction intersect each other.

9. A box, characterized in that, It includes at least one liquid cooling component as described in any one of claims 1-8.

10. The housing according to claim 9, characterized in that, The enclosure also includes: Side plates, two side plates are respectively disposed on opposite sides of at least one of the liquid cooling components in a third direction, and the side plates are connected to at least one of the liquid cooling components; An end plate includes a front end plate and a rear end plate, wherein the front end plate and the rear end plate are respectively disposed at opposite ends of the side plate in a first direction; The side plate, the end plate, and at least one of the liquid cooling components enclose the housing, with the first direction, the second direction, and the third direction intersecting each other.

11. The housing according to claim 10, characterized in that, The box body also includes expansion beams; The expansion beam is disposed on the side of the liquid cooling assembly near the front end plate, and the expansion beam and the front end plate are spaced apart along the first direction.

12. The housing according to claim 10, characterized in that, The side plate includes: A third cooling plate, wherein a third flow channel extending along the first direction is provided in the third cooling plate; A fourth cooling plate is provided, wherein the plane of the fourth cooling plate is arranged at an angle to the plane of the third cooling plate, and the fourth cooling plate is disposed on the side of the third cooling plate in the third direction; a fourth flow channel extending along the first direction is provided in the fourth cooling plate. The third cooling plate and the fourth cooling plate are interconnected.

13. The housing according to claim 12, characterized in that, The enclosure also includes sealing strips; The two sealing strips are used to seal the opposite ends of the first cooling plate and the third cooling plate in the first direction.

14. The housing according to claim 12, characterized in that, The fourth cooling plate is provided with a fourth sealing block and a fifth sealing block at opposite ends in the first direction.

15. A battery pack, characterized in that, Includes the enclosure as described in any one of claims 9-14.

16. The battery pack according to claim 15, characterized in that, The battery pack also includes a battery module and a thermally conductive adhesive layer; The battery module is disposed inside the housing, and the thermally conductive adhesive layer is disposed between the battery module and the housing.

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