Liquid cooling assembly, battery module, battery pack, and electric device

Abstract

The utility model provides a kind of liquid cooling assembly, battery module, battery pack and electric equipment, wherein liquid cooling assembly includes first liquid cooling module, second liquid cooling module and joint assembly. Among them, first liquid cooling module and second liquid cooling module are used to heat dissipation to battery. First liquid cooling module and second liquid cooling module are movably connected by joint assembly, joint assembly is used to conduct first liquid cooling module and second liquid cooling module, joint assembly includes first joint and second joint, first joint is located at first liquid cooling module, second joint is located at second liquid cooling module, and first joint and second joint are connected. The present application aims to enable first liquid cooling module and second liquid cooling module to be relatively movable, so as to improve the flexibility of liquid cooling assembly.

Description

Technical Field

[0001] This utility model relates to the field of liquid cooling technology, specifically to liquid cooling components, battery modules, battery packs, and electrical equipment. Background Technology

[0002] In related technologies, liquid cooling components include a first liquid cooling module and a second liquid cooling module. The positions of the first liquid cooling module and the second liquid cooling module are relatively fixed, which makes the liquid cooling components less flexible. Utility Model Content

[0003] The embodiments of this utility model provide a liquid cooling component, a battery module, a battery pack, and an electrical device, which are designed to enable the first liquid cooling module and the second liquid cooling module to move relative to each other, thereby improving the flexibility of the liquid cooling component.

[0004] In a first aspect, embodiments of the present invention provide a liquid cooling assembly, comprising:

[0005] A first liquid cooling module and a second liquid cooling module are used to dissipate heat from the battery; and

[0006] A connector assembly is provided, through which the first liquid cooling module and the second liquid cooling module are movably connected, and the connector assembly is used to conduct electricity between the first liquid cooling module and the second liquid cooling module.

[0007] The connector assembly includes a first connector and a second connector. The first connector is disposed on the first liquid cooling module, and the second connector is disposed on the second liquid cooling module. The first connector and the second connector are connected.

[0008] The first and second liquid cooling modules are movably connected via a connector assembly. This allows the first and second liquid cooling modules to move relative to each other, thereby increasing the flexibility of the liquid cooling assembly. Because the first and second liquid cooling modules are movably connected via the connector assembly, their relative positions can be flexibly adjusted. This allows the liquid cooling assembly to better adapt to the shape and size of the battery, improving its versatility and adaptability.

[0009] In one embodiment, the first connector and the second connector are plugged into each other.

[0010] The plug-in connection allows for quick connection and disconnection without complicated tools or cumbersome installation steps. This significantly reduces the installation time of liquid cooling components and improves work efficiency.

[0011] In one embodiment, the first connector and the second connector are movable relative to each other along the direction in which the first connector and the second connector are inserted.

[0012] Thus, during battery thermal expansion, the first and second connectors can move relative to each other, thereby reducing the stress between the first liquid cooling module and the battery, and reducing the stress between the second liquid cooling module and the battery. This stress dispersion helps improve the stability and reliability of the liquid cooling component structure.

[0013] In one embodiment, the first liquid cooling module is provided with a first limiting part, and the second connector is provided with a second limiting part. In the separation direction of the second connector relative to the first connector, the second limiting part and the first limiting part are arranged sequentially and opposite to each other, and the first limiting part is used to be stopped by the second limiting part.

[0014] Thus, the design of the second limiting part and the first limiting part ensures that the first connector and the second connector are connected relatively stably and will not easily separate.

[0015] In one embodiment, the liquid cooling assembly further includes a first sealing ring disposed between the first connector and the second connector.

[0016] This improves the seal between the first and second connectors, reducing the amount of coolant leaking between them.

[0017] In one embodiment, a first annular groove is provided on the outer periphery of the first connector, and the first sealing ring is disposed in the first annular groove.

[0018] The first annular groove provides a fixed position for the first sealing ring, ensuring that it will not shift or deviate during installation. The design of the first annular groove also prevents the first sealing ring from falling off due to vibration or impact. This fixing effect improves the stability of the first sealing ring.

[0019] In one embodiment, the first sealing ring is elastic.

[0020] In this way, the first and second connectors can move relative to each other to change the deformation position and / or degree of deformation of the first sealing ring. Because the first sealing ring is elastic, it can automatically compensate for changes in the gap between the first and second connectors when they move relative to each other. This automatic compensation function allows the first sealing ring to maintain good sealing performance, effectively reducing coolant leakage.

[0021] In one embodiment, the liquid cooling assembly further includes a second sealing ring disposed between the first connector and the first liquid cooling module.

[0022] This helps improve the sealing between the first connector and the first liquid cooling module, reducing the amount of coolant leaking between them.

[0023] In one embodiment, the second sealing ring is elastic.

[0024] In this way, the first connector and the first liquid cooling module can move relative to each other to change the deformation position and / or degree of deformation of the second sealing ring. Because the second sealing ring is elastic, it can automatically compensate for changes in the gap between the first connector and the first liquid cooling module when they move relative to each other. This automatic compensation function allows the second sealing ring to maintain good sealing performance, effectively reducing coolant leakage.

[0025] In one embodiment, the first connector has a first end and a second end opposite to each other, the first end being connected to the second connector, and the second sealing ring being disposed between the end face of the second end and the first liquid cooling module.

[0026] This helps improve the sealing between the first connector and the first liquid cooling module, reducing the amount of coolant leaking between them.

[0027] In one embodiment, the liquid cooling assembly further includes a third sealing ring disposed between the second connector and the second liquid cooling module.

[0028] This helps improve the sealing between the second connector and the second liquid cooling module, reducing the amount of coolant leaking between the second connector and the second liquid cooling module.

[0029] In one embodiment, the third sealing ring is elastic.

[0030] In this way, the second connector and the second liquid cooling module can move relative to each other to change the deformation position and / or degree of deformation of the third sealing ring. Because the third sealing ring is elastic, it can automatically compensate for changes in the gap between the second connector and the second liquid cooling module when they move relative to each other. This automatic compensation function allows the third sealing ring to maintain good sealing performance, effectively reducing coolant leakage.

[0031] In one embodiment, the second connector has a third end and a fourth end opposite to each other, the third end being connected to the first connector, and the third sealing ring being disposed between the end face of the fourth end and the second liquid cooling module.

[0032] This helps improve the sealing between the second connector and the second liquid cooling module, reducing the amount of coolant leaking between the second connector and the second liquid cooling module.

[0033] In one embodiment, the first liquid cooling module includes a first liquid cooling component and a first manifold connected to the first liquid cooling component. The first liquid cooling component is provided with multiple first liquid cooling channels, and the first manifold is provided with a first manifold cavity. The first manifold cavity is connected to the multiple first liquid cooling channels, and the first connector is connected to the first manifold cavity.

[0034] In this way, the first connector can be connected to multiple first liquid cooling channels through the first manifold.

[0035] In one embodiment, the first connector is movably connected to the first current collector.

[0036] During actual installation, the first connector and the first manifold may not be perfectly aligned due to manufacturing tolerances or installation errors. The movable connection absorbs these errors, ensuring a reliable connection even with minor deviations and improving the overall assembly quality of the system.

[0037] In one embodiment, the first connector includes a first connector body and a third limiting portion connected to the first connector body. The first connector body is used to conduct the second connector and the first liquid cooling component. The first current collector is also provided with a first limiting cavity. The third limiting portion is at least partially movably disposed in the first limiting cavity. The first limiting cavity is used to restrict the third limiting portion from disengaging from the first limiting cavity.

[0038] The design of the third limiting part and the first limiting cavity can effectively prevent the first connector from accidentally falling off due to vibration or impact. This limiting structure provides mechanical restraint, ensuring that the connection between the first connector and the first current collector remains stable at all times.

[0039] In one embodiment, the cavity wall of the first limiting cavity is provided with a first connecting hole and a first through hole. The first connecting hole connects to the first collecting cavity. The first connector body passes through the first through hole. The third limiting part is movably disposed in the first limiting cavity. There is an movable gap between the first connector body and the first through hole.

[0040] This effectively prevents the first joint from accidentally falling off due to vibration or impact.

[0041] In one embodiment, the first liquid cooling module further includes a first reflux member disposed on the first liquid cooling component. The first reflux member is provided with a first reflux cavity. The first liquid cooling channel is connected to the first reflux cavity. Multiple first collection cavities are provided. Different first collection cavities are connected to different first liquid cooling channels. One first collection cavity is connected to the second liquid cooling module through a connector assembly.

[0042] This gives the first liquid cooling module good temperature uniformity.

[0043] In one embodiment, the first current collector is configured to be made of plastic.

[0044] This helps reduce the manufacturing cost of liquid cooling components.

[0045] In one embodiment, the outer surface of the first liquid cooler is provided with a first groove, which is used to contact the periphery of the battery.

[0046] The design of the first groove increases the contact area between the first liquid coolant and the battery periphery. This increased contact area improves the heat transfer efficiency between the coolant and the battery, thereby effectively transferring the heat generated by the battery to the coolant and improving heat dissipation efficiency.

[0047] In one embodiment, the first liquid cooling component has a first side and a second side opposite to each other, and both the first side and the second side are provided with the first groove.

[0048] It is understandable that the battery contacted by the first groove on the first side is different from the battery contacted by the first groove on the second side. In this way, the first liquid cooling component can dissipate heat from more batteries, which is beneficial to improving the utilization rate of the first liquid cooling component.

[0049] In one embodiment, the first liquid cooling element is plate-shaped, and the first groove is formed on at least one side of the first liquid cooling element in the thickness direction.

[0050] This allows for a larger area of ​​the first groove, which is beneficial for improving the heat dissipation effect of the first liquid cooling component on the battery.

[0051] In one embodiment, the second liquid cooling module includes a second liquid cooling component and a second manifold connected to the second liquid cooling component. The second liquid cooling component is provided with multiple second liquid cooling channels, and the second manifold is provided with a second manifold cavity. The second manifold cavity is connected to the multiple second liquid cooling channels, and the second connector is located in the second manifold cavity and communicates with the second manifold cavity.

[0052] In this way, the second connector can be connected to multiple second liquid cooling channels through the second manifold.

[0053] In one embodiment, the second connector is movably connected to the second current collector.

[0054] During actual installation, the second connector and the second manifold may not be perfectly aligned due to manufacturing tolerances or installation errors. The movable connection absorbs these errors, ensuring a reliable connection even with minor deviations and improving the overall assembly quality of the system.

[0055] In one embodiment, the second connector includes a second connector body and a fourth limiting portion disposed on the second connector body. The second connector body is used to connect the second connector and the second liquid cooling component. The second current collector is also provided with a second limiting cavity. The fourth limiting portion is at least partially movably disposed in the second limiting cavity. The second limiting cavity is used to restrict the fourth limiting portion from disengaging from the second limiting cavity.

[0056] The design of the fourth limiting part and the second limiting cavity can effectively prevent the second connector from accidentally falling off due to vibration or impact. This limiting structure provides mechanical restraint, ensuring that the connection between the second connector and the second current collector remains stable at all times.

[0057] In one embodiment, the cavity wall of the second limiting cavity is provided with a second connecting hole and a second through hole. The second connecting hole connects to the second collecting cavity. The second connector body passes through the second through hole. The fourth limiting part is movably disposed in the second limiting cavity. There is an movable gap between the second connector body and the second through hole.

[0058] This effectively prevents the second connector from accidentally falling off due to vibration or impact.

[0059] In one embodiment, the second liquid cooling module further includes a second reflux member disposed on the second liquid cooling component. The second reflux member is provided with a second reflux cavity. The second liquid cooling channel is connected to the second reflux cavity. Multiple second collection cavities are provided. Different second collection cavities are connected to different second liquid cooling channels. One second collection cavity is connected to the second liquid cooling module through a connector assembly.

[0060] This gives the second liquid cooling module better temperature uniformity.

[0061] In some embodiments, the material of the second current collector is configured as plastic.

[0062] This helps reduce the manufacturing cost of liquid cooling components.

[0063] In one embodiment, the outer surface of the second liquid cooler is provided with a second groove, which is used to contact the periphery of the battery.

[0064] The design of the second groove increases the contact area between the second liquid coolant and the battery periphery. This increased contact area improves the heat transfer efficiency between the coolant and the battery, effectively transferring the heat generated by the battery to the coolant and improving heat dissipation efficiency.

[0065] In one embodiment, the second liquid cooling component has opposing third and fourth sides, both of which are provided with the second groove.

[0066] It is understandable that the battery contacted by the second groove on the third side is different from the battery contacted by the second groove on the fourth side. In this way, the second liquid cooler can dissipate heat from more batteries, which is beneficial for improving the utilization rate of the second liquid cooler.

[0067] In one embodiment, the second liquid cooling element is plate-shaped, and the second groove is formed on at least one side of the second liquid cooling element in the thickness direction.

[0068] This allows for a larger area of ​​the second groove, which is beneficial for improving the heat dissipation effect of the second liquid cooling component on the battery.

[0069] In one embodiment, the first connector and / or the second connector are configured to be made of plastic.

[0070] This helps reduce the manufacturing cost of liquid cooling components.

[0071] In one embodiment, the first liquid cooling module and the second liquid cooling module are spaced apart, and the space between the first liquid cooling module and the second liquid cooling module is used for the placement of the battery.

[0072] In this way, the adjacent first liquid cooling module and second liquid cooling module can dissipate heat from the same battery, which helps to improve the heat dissipation effect of the battery.

[0073] Secondly, embodiments of this utility model provide a battery module, comprising:

[0074] Batteries; and

[0075] The aforementioned liquid cooling components.

[0076] Thirdly, embodiments of this utility model provide a battery pack, including the battery module as described above.

[0077] Fourthly, embodiments of this utility model provide an electrical device including the aforementioned battery pack.

[0078] The beneficial effects of the embodiments of this utility model are as follows:

[0079] In this embodiment of the invention, the first liquid cooling module and the second liquid cooling module are movably connected via a connector assembly. This allows the first and second liquid cooling modules to move relative to each other, thereby improving the flexibility of the liquid cooling assembly. By flexibly adjusting the positions of the first and second liquid cooling modules, they can be made to make more thorough contact with the battery surface, thereby improving the uniformity of heat dissipation from the battery and extending its lifespan. Attached Figure Description

[0080] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0081] Figure 1 This is a three-dimensional schematic diagram of the battery module provided in an embodiment of this utility model;

[0082] Figure 2 yes Figure 1 Schematic diagram of the liquid cooling assembly;

[0083] Figure 3 yes Figure 2 Sectional view of AA;

[0084] Figure 4 yes Figure 2 Sectional view of BB;

[0085] Figure 5 yes Figure 2 Exploded view of the liquid cooling assembly;

[0086] Figure 6 yes Figure 5 Enlarged view of point C in the middle;

[0087] Figure 7 yes Figure 2 Exploded view of the liquid cooling assembly;

[0088] Figure 8 yes Figure 7 Enlarged view at point D;

[0089] Figure 9 These are structural diagrams of the first and second connectors;

[0090] Figure 10 This is a structural diagram of the first sealing ring, the second sealing ring, and the third sealing ring;

[0091] Figure 11 This is a schematic diagram of the structure of the electrical equipment provided in an embodiment of this utility model. Detailed Implementation

[0092] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. In the present utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0093] According to the first aspect of this application, referring to Figures 1 to 3 This disclosure provides a liquid cooling assembly 300. Please refer to the figure. Figure 5 , 7 The liquid cooling assembly 300 includes a first liquid cooling module 400, a second liquid cooling module 500, and a connector assembly 600. The first liquid cooling module 400 and the second liquid cooling module 500 are used to dissipate heat from the battery 200. The connector assembly 600 is used to connect the first liquid cooling module 400 and the second liquid cooling module 500. The first liquid cooling module 400 and the second liquid cooling module 500 are movably connected through the connector assembly 600. The connector assembly 600 includes a first connector 700 and a second connector 800. The first connector 700 is disposed on the first liquid cooling module 400, and the second connector 800 is disposed on the second liquid cooling module 500. The first connector 700 and the second connector 800 are connected.

[0094] The first liquid cooling module 400 and the second liquid cooling module 500 are movably connected by a connector assembly 600. In this way, the first liquid cooling module 400 and the second liquid cooling module 500 can move relative to each other, thereby improving the flexibility of the liquid cooling assembly 300.

[0095] Since the first liquid cooling module 400 and the second liquid cooling module 500 are movably connected via the connector assembly 600, their relative positions can be flexibly adjusted. This allows the liquid cooling assembly 300 to better adapt to the shape and size of the battery 200, improving the versatility and adaptability of the liquid cooling assembly 300.

[0096] By flexibly adjusting the positions of the first liquid cooling module 400 and the second liquid cooling module 500, the first liquid cooling module 400 and the second liquid cooling module 500 can make more sufficient contact with the surface of the battery 200, thereby improving the uniformity of heat dissipation of the battery 200 and extending the service life of the battery 200.

[0097] It is worth mentioning that the battery 200 may be configured as, but is not limited to, a cylindrical battery 200, a square battery 200, a pouch battery 200, or a large cylindrical battery 200; no restrictions are imposed here.

[0098] In one embodiment, the first connector 700 and the second connector 800 are plugged in. This plug-in connection allows for quick connection and disconnection without the need for complex tools or cumbersome installation steps. This significantly reduces the installation time of the liquid cooling assembly 300 and improves work efficiency. However, this design is not limited to this; in some other embodiments, the first connector 700 and the second connector 800 are connected together by threads.

[0099] In another example, the first connector 700 can be connected to the first liquid cooling module 400, and the second connector 800 can be connected to the second liquid cooling module 500. Thus, only the first connector 700 and the second connector 800 need to be connected to connect the first liquid cooling module 400 and the second liquid cooling module 500, which simplifies the assembly process of the liquid cooling assembly 300.

[0100] In one embodiment, the first connector 700 and the second connector 800 are movable relative to each other along the direction in which the first connector 700 and the second connector 800 are inserted.

[0101] Thus, when the battery 200 thermally expands, the first connector 700 and the second connector 800 can move relative to each other, thereby reducing the stress between the first liquid cooling module 400 and the battery 200, and reducing the stress between the second liquid cooling module 500 and the battery 200. This stress dispersion helps to improve the stability and reliability of the liquid cooling assembly 300 structure.

[0102] In some embodiments, the first liquid cooling module 400 is provided with a first limiting part 450, and the second connector 800 is provided with a second limiting part 820. In the separation direction of the second connector 800 relative to the first connector 700, the second limiting part 820 and the first limiting part 450 are arranged sequentially and opposite to each other, and the first limiting part 450 is used to stop the second limiting part 820.

[0103] Thus, the design of the second limiting part 820 and the first limiting part 450 ensures that the first connector 700 and the second connector 800 are connected relatively stably and will not easily separate.

[0104] In one example, the first current collector 420, as described below, also includes a first limiting part 450, which is configured as a claw and is located on the first current collector body 430.

[0105] Please refer to Figure 3 and 10 In one embodiment, the liquid cooling assembly 300 further includes a first sealing ring 910, which is disposed between the first connector 700 and the second connector 800.

[0106] This improves the sealing between the first connector 700 and the second connector 800, reducing the amount of coolant leaking between the first connector 700 and the second connector 800.

[0107] In one embodiment, a first annular groove 711 is provided on the outer periphery of the first connector 700, and a first sealing ring 910 is provided in the first annular groove 711.

[0108] The first annular groove 711 provides a fixed position for the first sealing ring 910, ensuring that the first sealing ring 910 will not shift or deviate during installation. The design of the first annular groove 711 can prevent the first sealing ring 910 from falling off due to vibration or impact. This fixing effect improves the stability of the first sealing ring 910.

[0109] In one embodiment, the first sealing ring 910 is elastic.

[0110] Thus, the first connector 700 and the second connector 800 can move relative to each other to change the deformation position and / or degree of deformation of the first sealing ring 910. Because the first sealing ring 910 is elastic, it can automatically compensate for changes in the gap between the first connector 700 and the second connector 800 when they move relative to each other. This automatic compensation function allows the first sealing ring 910 to maintain good sealing performance, effectively reducing coolant leakage.

[0111] Vibration and shock may cause changes in the relative positions of the first connector 700 and the second connector 800. The first sealing ring 910 can absorb these changes, maintain good sealing performance, and thus improve the overall reliability of the liquid cooling assembly 300.

[0112] In one example, the first sealing ring 910 is configured to be made of EPDM, FKM, or TPE.

[0113] In one embodiment, multiple first sealing rings 910 and multiple first annular grooves 711 are provided, with one first sealing ring 910 corresponding to one first annular groove 711. This helps to improve the sealing performance between the first connector 700 and the second connector 800 and reduce the amount of coolant leakage between the first connector 700 and the second connector 800.

[0114] Please refer to Figure 3 and 10 In one embodiment, the liquid cooling assembly 300 further includes a second sealing ring 920, which is disposed between the first connector 700 and the first liquid cooling module 400.

[0115] This helps to improve the sealing between the first connector 700 and the first liquid cooling module 400, and reduces the amount of coolant leaking between the first connector 700 and the first liquid cooling module 400.

[0116] In one embodiment, the second sealing ring 920 is elastic.

[0117] Thus, the first connector 700 and the first liquid cooling module 400 can move relative to each other to change the deformation position and / or degree of deformation of the second sealing ring 920. Because the second sealing ring 920 is elastic, it can automatically compensate for changes in the gap between the first connector 700 and the first liquid cooling module 400 when they move relative to each other. This automatic compensation function allows the second sealing ring 920 to maintain good sealing performance, effectively reducing coolant leakage.

[0118] Vibration and shock may cause changes in the relative positions of the first connector 700 and the first liquid cooling module 400. The second sealing ring 920 can absorb these changes, maintain good sealing performance, and thus improve the overall reliability of the liquid cooling assembly 300.

[0119] In one example, the material of the second sealing ring 920 is configured as EPDM, FKM, or TPE.

[0120] There are many ways to position the second sealing ring 920. In one embodiment, the first connector 700 has a first end and a second end, with the first end connected to the second connector 800. The second sealing ring 920 is located between the end face of the second end and the first liquid cooling module 400. This helps to improve the sealing performance between the first connector 700 and the first liquid cooling module 400, and reduces the amount of coolant leakage between them.

[0121] However, this design is not limited to this. In some other embodiments, the first liquid cooling module 400 is provided with a first mounting hole, the first connector 700 is provided in the first mounting hole, and the second sealing ring 920 is provided between the outer peripheral surface of the first connector 700 and the hole wall of the first mounting hole.

[0122] Please refer to Figure 3 and 10 In one embodiment, the liquid cooling assembly 300 further includes a third sealing ring 930, which is disposed between the second connector 800 and the second liquid cooling module 500.

[0123] This helps improve the sealing between the second connector 800 and the second liquid cooling module 500, reducing the amount of coolant leaking between the second connector 800 and the second liquid cooling module 500.

[0124] In one embodiment, the third sealing ring 930 is elastic.

[0125] Thus, the second connector 800 and the second liquid cooling module 500 can move relative to each other to change the deformation position and / or degree of deformation of the third sealing ring 930. Because the third sealing ring 930 is elastic, it can automatically compensate for changes in the gap between the second connector 800 and the second liquid cooling module 500 when they move relative to each other. This automatic compensation function allows the third sealing ring 930 to maintain good sealing performance, effectively reducing coolant leakage.

[0126] Vibration and shock may cause changes in the relative positions of the second connector 800 and the second liquid cooling module 500. The third sealing ring 930 can absorb these changes, maintain good sealing performance, and thus improve the overall reliability of the liquid cooling assembly 300.

[0127] In one example, the third sealing ring 930 is configured to be made of EPDM, FKM, or TPE.

[0128] There are many ways to position the third sealing ring 930. In one embodiment, the second connector 800 has a third end and a fourth end, with the third end connected to the first connector 700. The third sealing ring 930 is located between the end face of the fourth end and the second liquid cooling module 500. This helps to improve the sealing performance between the second connector 800 and the second liquid cooling module 500, reducing the amount of coolant leakage between them.

[0129] However, this design is not limited to this. In some other embodiments, the first liquid cooling module 400 is provided with a second mounting hole, the first connector 700 is provided in the second mounting hole, and the second sealing ring 920 is provided between the outer peripheral surface of the first connector 700 and the hole wall of the second mounting hole.

[0130] In one embodiment, the first liquid cooling module 400 includes a first liquid cooling component 410 and a first current collector 420 connected to the first liquid cooling component 410. The first liquid cooling component 410 is provided with multiple first liquid cooling channels 412, and the first current collector 420 is provided with a first current collector cavity 431. The first current collector cavity 431 is connected to the multiple first liquid cooling channels 412, and a first connector 700 is connected to the first current collector 420. Thus, the first connector 700 can be connected to the multiple first liquid cooling channels 412 through the first current collector cavity 431.

[0131] In one embodiment, the first connector 700 is movably connected to the first current collector 420.

[0132] During actual installation, due to manufacturing tolerances or installation errors, the first connector 700 and the first manifold 420 may not be perfectly aligned. The movable connection can absorb these errors, ensuring a reliable connection even with minor deviations, thus improving the overall assembly quality of the system.

[0133] In one embodiment, the first connector 700 includes a first connector body 710 and a third limiting portion 720 connected to the first connector body 710. The first connector body 710 is used to conduct the second connector 800 and the first liquid cooling component 410. The first current collector 420 is also provided with a first limiting cavity 432. The third limiting portion 720 is at least partially movably disposed in the first limiting cavity 432. The first limiting cavity 432 is used to restrict the third limiting portion 720 from disengaging from the first limiting cavity 432.

[0134] The design of the third limiting part 720 and the first limiting cavity 432 can effectively prevent the first connector 700 from accidentally falling off due to vibration or impact. This limiting structure provides mechanical restraint, ensuring that the connection between the first connector 700 and the first current collector 420 remains stable at all times.

[0135] In one embodiment, the cavity wall of the first limiting cavity 432 is provided with a first connecting hole 433 and a first through hole 441. The first connecting hole 433 connects to the first collecting cavity 431. The first connector body 710 passes through the first through hole 441. The third limiting part 720 is movably disposed in the first limiting cavity 432. There is an movable gap between the first connector body 710 and the first through hole 441.

[0136] This effectively prevents the first connector 700 from accidentally falling off due to vibration or impact.

[0137] Please refer to Figure 6 In one example, the first current collector 420 includes a first current collector body 430 and a first cover plate 440. The first current collector body 430 is connected to the first liquid cooling component 410. The first current collector body 430 has a first current collector cavity 431. The first cover plate 440 covers the first current collector body 430 and restricts a first limiting cavity 432 with the first current collector body 430. The first cover plate 440 has a first through hole 441, and the first current collector body 430 has a first connecting hole 433. The first cover plate 440 is fixedly connected to the first current collector body 430, and the first cover plate 440 may be welded or bonded to the first current collector body 430, but is not limited to this.

[0138] Please refer to Figure 4In one embodiment, the first liquid cooling module 400 further includes a first reflux member 460 disposed on the first liquid cooling component 410. The first reflux member 460 is provided with a first reflux cavity 461. The first liquid cooling channel 412 is connected to the first reflux cavity 461. Multiple first collection cavities 431 are provided. Different first collection cavities 431 are connected to different first liquid cooling channels 412. One first collection cavity 431 is connected to the second liquid cooling module 500 through a connector assembly 600.

[0139] This gives the first liquid cooling module 400 good temperature uniformity.

[0140] In one embodiment, the first current collector 420 is made of plastic. This helps reduce the manufacturing cost of the liquid cooling assembly 300. In one example, the first current collector 420 is made of PA66+GF30, PPS, or PPE.

[0141] In one embodiment, the outer surface of the first liquid cooling component 410 is provided with a first groove 411, which is used to contact the periphery of the battery 200.

[0142] The design of the first groove 411 increases the contact area between the first liquid coolant 410 and the periphery of the battery 200. This increased contact area improves the heat transfer efficiency between the coolant and the battery 200, thereby effectively transferring the heat generated by the battery 200 to the coolant and improving heat dissipation efficiency.

[0143] In one embodiment, the first liquid cooling component 410 has a first side and a second side opposite to each other, and both the first side and the second side are provided with a first groove 411.

[0144] It is understood that the battery 200 contacted by the first groove 411 on the first side is different from the battery 200 contacted by the first groove 411 on the second side. In this way, the first liquid cooling component 410 can dissipate heat from more batteries 200, which is beneficial to improving the utilization rate of the first liquid cooling component 410.

[0145] In one embodiment, the first liquid cooling component 410 is plate-shaped, and a first groove 411 is formed on at least one side of the first liquid cooling component 410 in the thickness direction. This is beneficial for making the area of ​​the first groove 411 larger, which is beneficial for improving the heat dissipation effect of the first liquid cooling component 410 on the battery 200. In one example, the first groove 411 located on the first side and the first groove 411 located on the second side are alternately arranged in the length direction of the first liquid cooling component 410.

[0146] In one embodiment, the second liquid cooling module 500 includes a second liquid cooling component 510 and a second manifold 520 connected to the second liquid cooling component 510. The second liquid cooling component 510 has multiple second liquid cooling channels 512, and the second manifold 520 has a second manifold cavity 531 that is connected to the multiple second liquid cooling channels 512. A second connector 800 is located in the second manifold 520 and is connected to the second manifold 520. Thus, the second connector 800 can be connected to the multiple second liquid cooling channels 512 through the second manifold cavity 531.

[0147] In one embodiment, the second connector 800 is movably connected to the second current collector 520.

[0148] During actual installation, the second connector 800 and the second manifold 520 may not be perfectly aligned due to manufacturing tolerances or installation errors. The movable connection absorbs these errors, ensuring a reliable connection even with minor deviations and improving the overall assembly quality of the system.

[0149] In one embodiment, the second connector 800 includes a second connector body 810 and a fourth limiting portion 830 disposed on the second connector 800 body. The second connector body 810 is used to conduct the second connector 800 and the second liquid cooling component 510. The second current collector 520 is also provided with a second limiting cavity 532. The fourth limiting portion 830 is at least partially movably disposed in the second limiting cavity 532. The second limiting cavity 532 is used to restrict the fourth limiting portion 830 from disengaging from the second limiting cavity 532.

[0150] The design of the fourth limiting part 830 and the second limiting cavity 532 can effectively prevent the second connector 800 from accidentally falling off due to vibration or impact. This limiting structure provides mechanical restraint to ensure that the connection between the second connector 800 and the second current collector 520 remains stable at all times.

[0151] In one embodiment, the cavity wall of the second limiting cavity 532 is provided with a second connecting hole 533 and a second through hole 541. The second connecting hole 533 connects to the second collecting cavity 531. The second connector body 810 passes through the second through hole 541. The fourth limiting part 830 is movably provided in the second limiting cavity 532. There is an movable gap between the second connector body 810 and the second through hole 541.

[0152] This effectively prevents the second connector 800 from accidentally falling off due to vibration or impact.

[0153] Please refer to Figure 8In one example, the second current collector 520 includes a second current collector body 530 and a second cover plate 540. The second current collector body 530 is connected to the second liquid cooling component 510. The second current collector body 530 has a second current collector cavity 531. The second cover plate 540 covers the second current collector body 530 and restricts a second limiting cavity 532 with the second current collector body 530. The second cover plate 540 has a second through hole 541, and the second current collector body 530 has a second connecting hole 533. The second cover plate 540 is fixedly connected to the second current collector body 530, and the second cover plate 540 may be welded or bonded to the second current collector body 530, but is not limited to this.

[0154] Please refer to Figure 4 In one embodiment, the second liquid cooling module 500 further includes a second reflux member 560 disposed on the second liquid cooling component 510. The second reflux member 560 is provided with a second reflux cavity 561. The second liquid cooling channel 512 is connected to the second reflux cavity 561. Multiple second collection cavities 531 are provided. Different second collection cavities 531 are connected to different second liquid cooling channels 512. One second collection cavity 531 is connected to the second liquid cooling module 500 through a connector assembly 600.

[0155] This gives the second liquid cooling module 500 better temperature uniformity.

[0156] In some embodiments, the second current collector 520 is configured to be made of plastic. This helps to reduce the manufacturing cost of the liquid cooling assembly 300. In one example, the second current collector 520 is configured to be made of PA66+GF30, PPS, or PPE.

[0157] In one embodiment, the outer surface of the second liquid cooling component 510 is provided with a second groove 511, which is used to contact the periphery of the battery 200.

[0158] The design of the second groove 511 increases the contact area between the second liquid coolant 510 and the periphery of the battery 200. This increased contact area improves the heat transfer efficiency between the coolant and the battery 200, thereby effectively transferring the heat generated by the battery 200 to the coolant and improving heat dissipation efficiency.

[0159] In one embodiment, the second liquid cooling component 510 has opposing third and fourth sides, each of which is provided with a second groove 511.

[0160] It is understood that the battery 200 contacted by the second groove 511 on the third side is different from the battery 200 contacted by the second groove 511 on the fourth side. In this way, the second liquid cooling component 510 can dissipate heat from more batteries 200, which is beneficial to improving the utilization rate of the second liquid cooling component 510.

[0161] In one embodiment, the second liquid cooling element 510 is plate-shaped, and the second groove 511 is formed on at least one side of the second liquid cooling element 510 in the thickness direction. This allows for a larger area of ​​the second groove 511, which is beneficial for improving the heat dissipation effect of the second liquid cooling element 510 on the battery 200. In one example, the second groove 511 located on the third side and the second groove 511 located on the fourth side are alternately arranged along the length direction of the second liquid cooling element 510.

[0162] In one embodiment, the first connector 700 and / or the second connector 800 are made of plastic. This helps to reduce the manufacturing cost of the liquid cooling assembly 300.

[0163] In one embodiment, the first liquid cooling module 400 and the second liquid cooling module 500 are arranged at intervals, with the space between them used for the placement of the battery 200. Thus, adjacent first liquid cooling modules 400 and second liquid cooling modules 500 can dissipate heat from the same battery 200, which helps improve the heat dissipation effect on the battery 200.

[0164] It is worth mentioning that the battery 200 will expand due to the high temperature during use. The first liquid cooling module 400 and the second liquid cooling module 500 are movably connected through the connector assembly 600. This allows the first liquid cooling module 400 and the second liquid cooling module 500 to change their relative positions according to the expansion of the battery 200, thereby reducing the stress between the first liquid cooling module 400 and the battery 200, and reducing the stress between the second liquid cooling module 500 and the battery 200.

[0165] According to a second aspect of this disclosure, a battery module 100 is provided, which includes a battery 200 and the aforementioned liquid cooling component 300. The battery module 100 has all the beneficial effects of the aforementioned liquid cooling component 300, which will not be repeated here.

[0166] Please refer to Figure 11 According to a third aspect of this disclosure, a battery pack 940 is provided, which includes the aforementioned battery module 100. The battery pack 940 has all the beneficial effects of the aforementioned liquid cooling assembly 300, which will not be repeated here.

[0167] According to a fourth aspect of this disclosure, an electrical device 950 is provided, which includes the aforementioned battery pack 940. The electrical device 950 possesses all the beneficial effects of the aforementioned battery pack 940, which will not be elaborated further herein. The electrical device 950 may be, but is not limited to, vehicles, energy storage power supplies, consumer electronics, medical devices, smart cities, etc.

[0168] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A liquid cooling assembly (300), characterized in that, include: The first liquid cooling module (400) and the second liquid cooling module (500) are used to dissipate heat from the battery (200); as well as A connector assembly (600) is provided, through which the first liquid cooling module (400) and the second liquid cooling module (500) are movably connected, and the connector assembly (600) is used to conduct electricity between the first liquid cooling module (400) and the second liquid cooling module (500). The connector assembly (600) includes a first connector (700) and a second connector (800). The first connector (700) is disposed on the first liquid cooling module (400), and the second connector (800) is disposed on the second liquid cooling module (500). The first connector (700) and the second connector (800) are connected.

2. The liquid cooling assembly (300) according to claim 1, characterized in that, The first connector (700) and the second connector (800) are plugged in.

3. The liquid cooling assembly (300) according to claim 2, characterized in that, Along the direction in which the first connector (700) and the second connector (800) are inserted, the first connector (700) and the second connector (800) are movable relative to each other; And / or, the first liquid cooling module (400) is provided with a first limiting part (450), and the second connector (800) is provided with a second limiting part (820). In the separation direction of the second connector (800) relative to the first connector (700), the second limiting part (820) and the first limiting part (450) are arranged sequentially and opposite to each other, and the first limiting part (450) is used to be stopped by the second limiting part (820).

4. The liquid cooling assembly (300) according to claim 1, characterized in that, The liquid cooling assembly (300) further includes a first sealing ring (910), which is disposed between the first connector (700) and the second connector (800).

5. The liquid cooling assembly (300) according to claim 4, characterized in that, The first connector (700) has a first annular groove (711) on its outer periphery, and the first sealing ring (910) is disposed in the first annular groove (711); And / or, the first sealing ring (910) is elastic.

6. The liquid cooling assembly (300) according to claim 1, characterized in that, The liquid cooling assembly (300) further includes a second sealing ring (920), which is disposed between the first connector (700) and the first liquid cooling module (400).

7. The liquid cooling assembly (300) according to claim 6, characterized in that, The second sealing ring (920) is elastic.

8. The liquid cooling assembly (300) according to claim 7, characterized in that, The first connector (700) has a first end and a second end opposite to each other. The first end is connected to the second connector (800), and the second sealing ring (920) is disposed between the end face of the second end and the first liquid cooling module (400).

9. The liquid cooling assembly (300) according to claim 1, characterized in that, The liquid cooling assembly (300) further includes a third sealing ring (930), which is disposed between the second connector (800) and the second liquid cooling module (500).

10. The liquid cooling assembly (300) according to claim 9, characterized in that, The third sealing ring (930) is elastic.

11. The liquid cooling assembly (300) according to claim 9, characterized in that, The second connector (800) has a third end and a fourth end opposite to each other. The third end is connected to the first connector (700), and the third sealing ring (930) is disposed between the end face of the fourth end and the second liquid cooling module (500).

12. The liquid cooling assembly (300) according to claim 1, characterized in that, The first liquid cooling module (400) includes a first liquid cooling component (410) and a first current collector (420) connected to the first liquid cooling component (410). The first liquid cooling component (410) is provided with multiple first liquid cooling channels (412). The first current collector (420) is provided with a first current collection cavity (431). The first current collection cavity (431) is connected to the multiple first liquid cooling channels (412). The first connector (700) is connected to the first current collector (420).

13. The liquid cooling assembly (300) according to claim 12, characterized in that, The first connector (700) is movably connected to the first current collector (420).

14. The liquid cooling assembly (300) according to claim 13, characterized in that, The first connector (700) includes a first connector body (710) and a third limiting part (720) connected to the first connector body (710). The first connector body (710) is used to conduct the second connector (800) and the first liquid cooling component (410). The first current collector (420) is also provided with a first limiting cavity (432). The third limiting part (720) is at least partially movably disposed in the first limiting cavity (432). The first limiting cavity (432) is used to restrict the third limiting part (720) from disengaging from the first limiting cavity (432).

15. The liquid cooling assembly (300) according to claim 14, characterized in that, The first limiting cavity (432) has a first connecting hole (433) and a first through hole (441) in its cavity wall. The first connecting hole (433) connects to the first collecting cavity (431). The first connector body (710) passes through the first through hole (441). The third limiting part (720) is movably disposed in the first limiting cavity (432). There is an movable gap between the first connector body (710) and the first through hole (441).

16. The liquid cooling assembly (300) according to claim 12, characterized in that, The first liquid cooling module (400) further includes a first reflux member (460) disposed on the first liquid cooling component (410). The first reflux member (460) is provided with a first reflux cavity (461). The first liquid cooling channel (412) is connected to the first reflux cavity (461). Multiple first collection cavities (431) are provided. Different first collection cavities (431) are connected to different first liquid cooling channels (412). One first collection cavity (431) is connected to the second liquid cooling module (500) through a connector assembly (600). And / or, the first current collector (420) is configured to be made of plastic.

17. The liquid cooling assembly (300) according to claim 12, characterized in that, The outer surface of the first liquid cooling component (410) is provided with a first groove (411), which is used to contact the periphery of the battery (200).

18. The liquid cooling assembly (300) according to claim 17, characterized in that, The first liquid cooling component (410) has a first side and a second side opposite to each other, and the first side and the second side are provided with the first groove (411); And / or, the first liquid cooling element (410) is plate-shaped, and the first groove (411) is formed on at least one side of the first liquid cooling element (410) in the thickness direction of the first liquid cooling element (410).

19. The liquid cooling assembly (300) according to claim 1, characterized in that, The second liquid cooling module (500) includes a second liquid cooling component (510) and a second manifold (520) connected to the second liquid cooling component (510). The second liquid cooling component (510) is provided with multiple second liquid cooling channels (512). The second manifold (520) is provided with a second manifold cavity (531). The second manifold cavity (531) is connected to the multiple second liquid cooling channels (512). The second connector (800) is located in the second manifold (520) and is connected to the second manifold (520).

20. The liquid cooling assembly (300) according to claim 19, characterized in that, The second connector (800) is movably connected to the second current collector (520).

21. The liquid cooling assembly (300) according to claim 20, characterized in that, The second connector (800) includes a second connector (800) body and a fourth limiting part (830) disposed on the second connector (800) body. The second connector (800) body is used to conduct the second connector (800) and the second liquid cooling component (510). The second current collector (520) is also provided with a second limiting cavity (532). The fourth limiting part (830) is at least partially movably disposed in the second limiting cavity (532). The second limiting cavity (532) is used to restrict the fourth limiting part (830) from disengaging from the second limiting cavity (532).

22. The liquid cooling assembly (300) according to claim 21, characterized in that, The second limiting cavity (532) has a second connecting hole (533) and a second through hole (541) in its cavity wall. The second connecting hole (533) connects to the second collecting cavity (531). The body of the second connector (800) passes through the second through hole (541). The fourth limiting part (830) is movably disposed in the second limiting cavity (532). There is a movable gap between the body of the second connector (800) and the second through hole (541).

23. The liquid cooling assembly (300) according to claim 22, characterized in that, The second liquid cooling module (500) further includes a second reflux member (560) disposed on the second liquid cooling component (510). The second reflux member (560) is provided with a second reflux cavity (561). The second liquid cooling channel (512) is connected to the second reflux cavity (561). Multiple second collection cavities (531) are provided. Different second collection cavities (531) are connected to different second liquid cooling channels (512). One second collection cavity (531) is connected to the second liquid cooling module (500) through a connector assembly (600). And / or, the material of the second current collector (520) is configured as plastic.

24. The liquid cooling assembly (300) according to claim 19, characterized in that, The outer surface of the second liquid cooling component (510) is provided with a second groove (511), which is used to contact the periphery of the battery (200).

25. The liquid cooling assembly (300) according to claim 24, characterized in that, The second liquid cooling component (510) has a third side and a fourth side opposite to each other, and the third side and the fourth side are provided with the second groove (511); And / or, the second liquid cooling element (510) is plate-shaped, and the second groove (511) is formed on at least one side of the second liquid cooling element (510) in the thickness direction.

26. The liquid cooling assembly (300) according to claim 1, characterized in that, The first connector (700) and / or the second connector (800) are made of plastic; And / or, the first liquid cooling module (400) and the second liquid cooling module (500) are spaced apart, and the space between the first liquid cooling module (400) and the second liquid cooling module (500) is used for the placement of the battery (200).

27. A battery module (100), characterized in that, include: Battery (200); as well as The liquid cooling assembly (300) as described in any one of claims 1 to 26.

28. A battery pack (940), characterized in that, Includes the battery module (100) as described in claim 27.

29. An electrical appliance (950), characterized in that, Includes the battery pack (940) as described in claim 28.

Images