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

Abstract

The invention provides a liquid cooling assembly, a battery module, a battery pack and electric equipment. The liquid cooling assembly comprises a first liquid cooling module, a second liquid cooling module and a connector assembly. Wherein the first liquid cooling module and the second liquid cooling module are used for cooling the battery. The first liquid cooling module and the second liquid cooling module are movably connected through a connector assembly, the connector assembly is used for conducting the first liquid cooling module and the second liquid cooling module and comprises a first connector and a second connector, the first connector is arranged on the first liquid cooling module, the second connector is arranged on the second liquid cooling module, and the first connector is connected with the second connector. According to the liquid cooling assembly, the first liquid cooling module and the second liquid cooling module can move relatively, so that the flexibility of the liquid cooling assembly is improved.

Description

Technical Field

[0001] The present invention relates to the field of liquid cooling technology, and in particular to a liquid cooling assembly, a battery module, a battery pack and an electrical device. Background Art

[0002] In the related art, the liquid cooling assembly includes 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 assembly less flexible. Summary of the Invention

[0003] Embodiments of the present invention provide a liquid cooling assembly, a battery module, a battery pack, and an electrical device, which are intended to enable a first liquid cooling module and a second liquid cooling module to move relative to each other, thereby improving the flexibility of the liquid cooling assembly.

[0004] In a first aspect, an embodiment of the present invention provides a liquid cooling assembly, comprising:

[0005] A first liquid cooling module and a second liquid cooling module for dissipating heat from the battery; and

[0006] a connector assembly, 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 joint assembly includes a first joint and a second joint, the first joint is provided on the first liquid cooling module, the second joint is provided on the second liquid cooling module, and the first joint and the second joint are connected.

[0008] The first and second liquid cooling modules are movably connected via a joint assembly. This allows the first and second liquid cooling modules to move relative to each other, thereby enhancing the flexibility of the liquid cooling assembly. Because the first and second liquid cooling modules are movably connected via the joint 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 method allows for quick connection and removal without the need for complex tools or tedious installation steps. This greatly shortens the installation time of the liquid cooling component and improves work efficiency.

[0011] In one embodiment, the first connector and the second connector are relatively movable along a direction in which the first connector and the second connector are plugged into each other.

[0012] As the battery expands thermally, the first and second connectors can move relative to each other, reducing stress between the first liquid cooling module and the battery, and between the second liquid cooling module and the battery. This stress distribution helps improve the stability and reliability of the liquid cooling assembly structure.

[0013] In one embodiment, the first liquid cooling module is provided with a first limiting portion, and the second joint is provided with a second limiting portion. In the separation direction of the second joint relative to the first joint, the second limiting portion and the first limiting portion are arranged sequentially and oppositely, and the first limiting portion is used for the second limiting portion to resist.

[0014] In this way, the design of the second limiting portion and the first limiting portion ensures that the first connector and the second connector are connected more stably and will not be easily separated.

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

[0016] In this way, the sealing performance between the first joint and the second joint is improved, and the amount of coolant leaking from between the first joint and the second joint is reduced.

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

[0018] The first ring groove secures the first sealing ring, ensuring it won't shift or deflect during installation. This design prevents the first sealing ring from falling out due to vibration or impact. This securement 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 joints can move relative to each other, thereby changing the 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 joints during relative movement. This automatic compensation function ensures that the first sealing ring maintains good sealing performance, effectively reducing coolant leakage.

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

[0022] This helps to improve the sealing between the first joint and the first liquid cooling module and reduce the amount of cooling liquid leaking from between the first joint and the first liquid cooling module.

[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, changing the position and / or degree of deformation of the second sealing ring. Because the second sealing ring is elastic, it automatically compensates for changes in the gap between the first connector and the first liquid cooling module as they move relative to each other. This automatic compensation function ensures that the second sealing ring maintains a good sealing performance, effectively reducing coolant leakage.

[0025] In one embodiment, the first joint has a first end and a second end opposite to each other, the first end is connected to the second joint, and the second sealing ring is provided between an end surface of the second end and the first liquid cooling module.

[0026] This helps to improve the sealing between the first joint and the first liquid cooling module and reduce the amount of cooling liquid leaking from between the first joint and the first liquid cooling module.

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

[0028] This helps to improve the sealing between the second joint and the second liquid cooling module and reduce the amount of cooling liquid leaking from between the second joint 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, changing the position and / or degree of deformation of the third sealing ring. Because the third sealing ring is elastic, it automatically compensates for changes in the gap between the second connector and the second liquid cooling module during relative movement. This automatic compensation function ensures that the third sealing ring maintains good sealing performance, effectively reducing coolant leakage.

[0031] In one embodiment, the second joint has a third end and a fourth end opposite to each other, the third end is connected to the first joint, and the third sealing ring is provided between an end surface of the fourth end and the second liquid cooling module.

[0032] This helps to improve the sealing between the second joint and the second liquid cooling module and reduce the amount of cooling liquid leaking from between the second joint and the second liquid cooling module.

[0033] In one embodiment, the first liquid cooling module includes a first liquid cooling component and a first current collector connected to the first liquid cooling component, the first liquid cooling component is provided with a plurality of first liquid cooling channels, the first current collector is provided with a first collecting cavity, the first collecting cavity is communicated with the plurality of first liquid cooling channels, and the first joint is communicated with the first current collector.

[0034] In this way, the first joint can be connected to the plurality of 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 current collector may not be perfectly aligned due to manufacturing tolerances or installation errors. The flexible connection can absorb these errors, ensuring a reliable connection even with slight deviations, thereby improving the overall assembly quality of the system.

[0037] In one embodiment, the first joint includes a first joint body and a third limiting portion connected to the first joint body, the first joint body is used to conduct the second joint 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 provided in the first limiting cavity, and the first limiting cavity is used to limit the third limiting portion from detaching from the first limiting cavity.

[0038] The design of the third limiting portion 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 constraints to ensure that the connection between the first connector and the first current collector remains stable.

[0039] In one embodiment, a first connecting hole and a first through hole are formed in the cavity wall of the first limiting cavity, the first connecting hole is connected to the first collecting cavity, the first connector body is passed through the first through hole, the third limiting portion is movably provided in the first limiting cavity, and a movable gap is provided between the first connector body and the first through hole.

[0040] In this way, the first connector can be effectively prevented from accidentally falling off due to vibration or impact.

[0041] In one embodiment, the first liquid cooling module further includes a first reflux member provided on the first liquid cooling member, the first reflux member is provided with a first reflux cavity, the first liquid cooling channel is connected to the first reflux cavity, a plurality of first collecting cavities are provided, different first collecting cavities are connected to different first liquid cooling channels, and the first collecting cavity is connected to the second liquid cooling module through the joint assembly.

[0042] This ensures that the first liquid cooling module has better temperature uniformity.

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

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

[0045] In one embodiment, a first groove is provided on an outer surface of the first liquid cooling element, and the first groove is used to contact a peripheral side of the battery.

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

[0047] In one embodiment, the first liquid-cooling member 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 understood 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 element can dissipate heat for more batteries, which is beneficial to improving the utilization rate of the first liquid cooling element.

[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 a thickness direction of the first liquid-cooling element.

[0050] In this way, the area of ​​the first groove is increased, which helps to improve the heat dissipation effect of the first liquid cooling element on the battery.

[0051] In one embodiment, the second liquid cooling module includes a second liquid cooling component and a second current collector connected to the second liquid cooling component, the second liquid cooling component is provided with a plurality of second liquid cooling channels, the second current collector is provided with a second collecting cavity, the second collecting cavity is communicated with the plurality of second liquid cooling channels, and the second joint is provided on the second collecting cavity and communicated with the second collecting cavity.

[0052] In this way, the second joint can be connected to the plurality of second liquid-cooling channels through the second manifold.

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

[0054] During actual installation, the second connector and the second current collector may not be perfectly aligned due to manufacturing tolerances or installation errors. The flexible connection can absorb these errors, ensuring a reliable connection even with slight deviations, 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 provided on the second connector body, the second connector body is used to conduct 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 provided in the second limiting cavity, and the second limiting cavity is used to limit the fourth limiting portion from being separated from the second limiting cavity.

[0056] The design of the fourth limiting portion 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 constraints to ensure that the connection between the second connector and the second current collector remains stable.

[0057] In one embodiment, a second connecting hole and a second through hole are formed in the cavity wall of the second limiting cavity, the second connecting hole is connected to the second collecting cavity, the second connector body is passed through the second through hole, the fourth limiting portion is movably provided in the second limiting cavity, and a movable gap is provided between the second connector body and the second through hole.

[0058] In this way, the second connector can be effectively prevented from accidentally falling off due to vibration or impact.

[0059] In one embodiment, the second liquid cooling module further includes a second reflux member provided on the second liquid cooling member, the second reflux member is provided with a second reflux chamber, the second liquid cooling channel is connected to the second reflux chamber, a plurality of second collecting chambers are provided, different second collecting chambers are connected to different second liquid cooling channels, and a second collecting chamber is connected to the second liquid cooling module through a joint assembly.

[0060] This ensures that the second liquid cooling module has better temperature uniformity.

[0061] In some embodiments, the second current collector is made of plastic.

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

[0063] In one embodiment, a second groove is formed on an outer surface of the second liquid cooling element, and the second groove is used to contact a peripheral side of the battery.

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

[0065] In one embodiment, the second liquid-cooling member has a third side and a fourth side opposite to each other, and both the third side and the fourth side are provided with the second groove.

[0066] It is understood 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 cooling element can dissipate heat for more batteries, which is conducive to improving the utilization rate of the second liquid cooling element.

[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 a thickness direction.

[0068] In this way, the area of ​​the second groove is increased, which helps to improve 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 made of plastic.

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

[0071] In one embodiment, the first liquid cooling module and the second liquid cooling module are spaced apart, and the battery is arranged between the first liquid cooling module and the second liquid cooling module.

[0072] In this way, the adjacent first liquid cooling module and the second liquid cooling module can dissipate heat for the same battery, which is beneficial to improving the heat dissipation effect for the battery.

[0073] In a second aspect, an embodiment of the present invention provides a battery module, comprising:

[0074] Batteries; and

[0075] The aforementioned liquid cooling components.

[0076] In a third aspect, an embodiment of the present invention provides a battery pack comprising the aforementioned battery module.

[0077] In a fourth aspect, an embodiment of the present invention provides an electrical device including the aforementioned battery pack.

[0078] Beneficial effects of the embodiments of the present invention:

[0079] In an embodiment of the present invention, the first and second liquid cooling modules are movably connected via a joint assembly. This allows the first and second liquid cooling modules to move relative to each other, thereby enhancing the flexibility of the liquid cooling assembly. By flexibly adjusting the positions of the first and second liquid cooling modules, the first and second liquid cooling modules can be brought into closer contact with the battery surface, thereby improving heat dissipation uniformity and extending the battery life. BRIEF DESCRIPTION OF THE DRAWINGS

[0080] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0081] Figure 1 is a three-dimensional schematic diagram of a battery module provided by an embodiment of the present invention;

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

[0083] Figure 3 yes Figure 2 Cross-sectional view of AA;

[0084] Figure 4 yes Figure 2 Cross-sectional view of the middle 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 of point D in the middle;

[0089] Figure 9 is a schematic structural diagram of a first joint and a second joint;

[0090] Figure 10 1 is a schematic structural diagram of the first sealing ring, the second sealing ring and the third sealing ring;

[0091] Figure 11 It is a structural diagram of an electrical device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0092] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. In the present invention, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; while "inside" and "outside" refer to the outline of the device.

[0093] According to the first aspect of this application, referring to Figures 1 to 3 The present disclosure provides a liquid cooling assembly 300. 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 via the connector assembly 600. The connector assembly 600 includes a first connector 700 and a second connector 800. The first connector 700 is provided on the first liquid cooling module 400, and the second connector 800 is provided 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 via the joint 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] Because the first liquid cooling module 400 and the second liquid cooling module 500 are movably connected via the joint 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, thereby 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 be made to more fully contact the surface of the battery 200, thereby improving the heat dissipation uniformity of the battery 200 and extending the service life of the battery 200.

[0097] It is worth mentioning that the battery 200 can be configured as, but not limited to, a cylindrical battery 200, a square battery 200, a soft-pack battery 200 or a large cylindrical battery 200, and no limitation is made here.

[0098] In one embodiment, the first connector 700 and the second connector 800 are pluggable. This plug-in connection allows for quick connection and removal without the need for complex tools or tedious installation steps. This significantly reduces the installation time of the liquid cooling assembly 300 and improves work efficiency. However, the present 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] Furthermore, in one 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. In this way, 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, along the direction in which the first connector 700 and the second connector 800 are plugged in, the first connector 700 and the second connector 800 are relatively movable.

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

[0102] In some embodiments, the first liquid cooling module 400 is provided with a first limiting portion 450, and the second joint 800 is provided with a second limiting portion 820. In the separation direction of the second joint 800 relative to the first joint 700, the second limiting portion 820 and the first limiting portion 450 are arranged in sequence and opposite to each other, and the first limiting portion 450 is used to provide resistance for the second limiting portion 820.

[0103] In this way, the design of the second limiting portion 820 and the first limiting portion 450 ensures that the first connector 700 and the second connector 800 are connected more stably and will not be easily separated.

[0104] In one example, the first current collector 420 described below further includes a first limiting portion 450 . The first limiting portion 450 is configured as a claw and is provided on the first current collecting 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 joint 700 and the second joint 800 .

[0106] In this way, the sealing between the first joint 700 and the second joint 800 is improved, and the amount of cooling liquid leaking from between the first joint 700 and the second joint 800 is reduced.

[0107] In one embodiment, a first annular groove 711 is defined on the outer circumference of the first joint 700 , and the first sealing ring 910 is disposed 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 does not shift or deflect during installation. The design of the first annular groove 711 prevents 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] In this way, the first joint 700 and the second joint 800 can move relative to each other, thereby changing the 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 joint 700 and the second joint 800 during relative movement. 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 the relative positions of the first joint 700 and the second joint 800 to change. The first sealing ring 910 can absorb these changes and maintain good sealing performance, thereby improving the overall reliability of the liquid cooling assembly 300.

[0112] In one example, the material of the first sealing ring 910 is EPDM, FKM or TPE.

[0113] In one embodiment, there are multiple first sealing rings 910 and multiple first annular grooves 711, with one first sealing ring 910 corresponding to one first annular groove 711. This helps improve the sealing between the first joint 700 and the second joint 800 and reduces the amount of coolant leakage between the first joint 700 and the second joint 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 joint 700 and the first liquid cooling module 400 .

[0115] This helps to improve the sealing between the first joint 700 and the first liquid cooling module 400 and reduce the amount of cooling liquid leaking from between the first joint 700 and the first liquid cooling module 400 .

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

[0117] In this way, the first joint 700 and the first liquid cooling module 400 can move relative to each other, thereby changing the 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 joint 700 and the first liquid cooling module 400 during relative movement. This automatic compensation function ensures that the second sealing ring 920 maintains good sealing performance, effectively reducing coolant leakage.

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

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

[0120] There are many different placement options for the second sealing ring 920. In one embodiment, the first connector 700 has a first end and a second end that are opposite each other. The first end is connected to the second connector 800, and the second sealing ring 920 is positioned between the end surface of the second end and the first liquid cooling module 400. This helps improve the sealing between the first connector 700 and the first liquid cooling module 400 and reduces the amount of coolant leakage between the first connector 700 and the first liquid cooling module 400.

[0121] However, the present design is not limited thereto. In some other embodiments, the first liquid cooling module 400 is provided with a first mounting hole, the first joint 700 is provided in the first mounting hole, and the second sealing ring 920 is provided between the outer peripheral surface of the first joint 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 joint 800 and the second liquid cooling module 500 .

[0123] This helps to improve the sealing between the second joint 800 and the second liquid cooling module 500 and reduce the amount of cooling liquid leaking from between the second joint 800 and the second liquid cooling module 500.

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

[0125] In this way, the second joint 800 and the second liquid cooling module 500 can move relative to each other, thereby changing the 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 joint 800 and the second liquid cooling module 500 during relative movement. This automatic compensation function ensures that the third sealing ring 930 maintains good sealing performance, effectively reducing coolant leakage.

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

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

[0128] There are many different placement options for the third sealing ring 930. In one embodiment, the second connector 800 has opposing third and fourth ends, with the third end connected to the first connector 700. The third sealing ring 930 is positioned between the end surface of the fourth end and the second liquid cooling module 500. This helps improve the seal between the second connector 800 and the second liquid cooling module 500 and reduces the amount of coolant leakage between the second connector 800 and the second liquid cooling module 500.

[0129] However, the present design is not limited thereto. In some other embodiments, the first liquid cooling module 400 is provided with a second mounting hole, the first joint 700 is provided in the second mounting hole, and the second sealing ring 920 is provided between the outer peripheral surface of the first joint 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 element 410 and a first fluid collector 420 connected to the first liquid cooling element 410. The first liquid cooling element 410 is provided with a plurality of first liquid cooling channels 412. The first fluid collector 420 is provided with a first manifold 431, which is in communication with the plurality of first liquid cooling channels 412. The first joint 700 is in communication with the first fluid collector 420. This allows the first joint 700 to communicate with the plurality of first liquid cooling channels 412 via the first manifold 431.

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

[0132] During the actual installation process, due to manufacturing tolerances or installation errors, the first joint 700 and the first current collector 420 may not be completely aligned. The movable connection can absorb these errors, ensuring a reliable connection even in the presence of slight deviations, thereby 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 provided in the first limiting cavity 432. The first limiting cavity 432 is used to limit the third limiting portion 720 from being separated from the first limiting cavity 432.

[0134] The design of the third limiting portion 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 constraints to ensure that the connection between the first connector 700 and the first current collector 420 remains stable.

[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 is connected to the first collecting cavity 431, the first connector body 710 is passed through the first through hole 441, the third limiting portion 720 is movably provided in the first limiting cavity 432, and a movable gap is provided between the first connector body 710 and the first through hole 441.

[0136] In this way, the first connector 700 can be effectively prevented 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 collecting body 430 and a first cover plate 440. The first current collecting body 430 is connected to the first liquid-cooling element 410 and defines a first collecting cavity 431. The first cover plate 440 covers the first current collecting body 430 and defines a first limiting cavity 432 with the first current collecting body 430. The first cover plate 440 defines a first through-hole 441, and the first current collecting body 430 defines a first communicating hole 433. The first cover plate 440 is fixedly connected to the first current collecting body 430 and can be, but is not limited to, welded or bonded to the first current collecting body 430.

[0138] Please refer to Figure 4In one embodiment, the first liquid cooling module 400 further includes a first return member 460 provided on the first liquid cooling member 410. The first return member 460 is provided with a first return chamber 461. The first liquid cooling channel 412 is connected to the first return chamber 461. A plurality of first manifold chambers 431 are provided. Different first manifold chambers 431 are connected to different first liquid cooling channels 412. A first manifold chamber 431 is connected to the second liquid cooling module 500 through a joint assembly 600.

[0139] As such, the first liquid cooling module 400 has better temperature uniformity.

[0140] In one embodiment, the first current collector 420 is made of plastic, which 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, a first groove 411 is defined on an outer surface of the first liquid-cooling element 410 . The first groove 411 is configured to contact the peripheral side of the battery 200 .

[0142] The design of the first groove 411 can increase the contact area between the first liquid cooling element 410 and the periphery of the battery 200. This increased contact area can improve 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 member 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 first groove 411 on the first side contacts different batteries 200 than the first groove 411 on the second side. In this way, the first liquid cooling element 410 can dissipate heat from more batteries 200, which is beneficial to improving the utilization rate of the first liquid cooling element 410.

[0145] In one embodiment, the first liquid-cooling element 410 is plate-shaped, with first grooves 411 formed on at least one side of the first liquid-cooling element 410 along its thickness. This arrangement increases the area of ​​the first grooves 411 and improves the heat dissipation effect of the first liquid-cooling element 410 on the battery 200. In one example, along the length of the first liquid-cooling element 410, the first grooves 411 on the first side and the first grooves 411 on the second side are alternately arranged.

[0146] In one embodiment, the second liquid cooling module 500 includes a second liquid cooling element 510 and a second current collector 520 connected to the second liquid cooling element 510. The second liquid cooling element 510 is provided with a plurality of second liquid cooling channels 512. The second current collector 520 is provided with a second manifold 531, which is in communication with the plurality of second liquid cooling channels 512. The second manifold 531 is in communication with the plurality of second liquid cooling channels 512. The second connector 800 is provided on the second current collector 520 and is in communication with the second current collector 520. In this way, the second connector 800 can be in communication with the plurality of second liquid cooling channels 512 through the second manifold 531.

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

[0148] During the actual installation process, due to manufacturing tolerances or installation errors, the second joint 800 and the second current collector 520 may not be completely aligned. The movable connection can absorb these errors, ensuring a reliable connection even in the presence of slight deviations, thereby 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 provided 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 provided in the second limiting cavity 532. The second limiting cavity 532 is used to limit the fourth limiting portion 830 from being separated from the second limiting cavity 532.

[0150] The design of the fourth limiting portion 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 constraints to ensure that the connection between the second connector 800 and the second current collector 520 remains stable.

[0151] In one embodiment, a second connecting hole 533 and a second through hole 541 are opened on the cavity wall of the second limiting cavity 532, the second connecting hole 533 is connected to the second collecting cavity 531, the second connector body 810 is passed through the second through hole 541, the fourth limiting portion 830 can be movably provided in the second limiting cavity 532, and a movable gap is provided between the second connector body 810 and the second through hole 541.

[0152] In this way, the second connector 800 can be effectively prevented 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 collecting body 530 and a second cover plate 540. The second current collecting body 530 is connected to the second liquid-cooling element 510 and defines a second manifold 531. The second cover plate 540 covers the second current collecting body 530 and defines a second limiting cavity 532 with the second current collecting body 530. The second cover plate 540 defines a second through-hole 541 and a second connecting hole 533. The second cover plate 540 is fixedly connected to the second current collecting body 530 and can be, but is not limited to, welded or bonded to the second current collecting body 530.

[0154] Please refer to Figure 4 In one embodiment, the second liquid cooling module 500 further includes a second reflux member 560 provided on the second liquid cooling member 510 , the second reflux member 560 is provided with a second reflux chamber 561 , the second liquid cooling channel 512 is connected to the second reflux chamber 561 , a plurality of second manifolds 531 are provided, different second manifolds 531 are connected to different second liquid cooling channels 512 , and a second manifold 531 is connected to the second liquid cooling module 500 through a joint assembly 600 .

[0155] As a result, the second liquid cooling module 500 has better temperature uniformity.

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

[0157] In one embodiment, a second groove 511 is defined on an outer surface of the second liquid-cooling element 510 . The second groove 511 is configured to contact the peripheral side of the battery 200 .

[0158] The design of the second groove 511 can increase the contact area between the second liquid cooling element 510 and the battery 200. This increased contact area can improve 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 member 510 has a third side and a fourth side opposite to each other, and both the third side and the fourth side are provided with a second groove 511 .

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

[0161] In one embodiment, the second liquid-cooling element 510 is plate-shaped, and the second grooves 511 are formed on at least one side of the second liquid-cooling element 510 in the thickness direction. This advantageously increases the area of ​​the second grooves 511, thereby improving the heat dissipation effect of the second liquid-cooling element 510 on the battery 200. In one example, along the length of the second liquid-cooling element 510, the second grooves 511 on the third side and the second grooves 511 on the fourth side are arranged alternately.

[0162] In one embodiment, the first connector 700 and / or the second connector 800 are made of plastic, which helps 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 spaced apart, with the battery 200 positioned between the first liquid cooling module 400 and the second liquid cooling module 500. This allows adjacent first and second liquid cooling modules 400 and 500 to dissipate heat from the same battery 200, improving 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 joint assembly 600, which enables the first liquid cooling module 400 and the second liquid cooling module 500 to change the relative position of the first liquid cooling module 400 and the second liquid cooling module 500 according to the expansion amount 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 the present disclosure, a battery module 100 is provided. The battery module 100 includes a battery 200 and the aforementioned liquid cooling assembly 300. The battery module 100 has all the beneficial effects of the aforementioned liquid cooling assembly 300, which will not be described in detail in the present disclosure.

[0166] Please refer to Figure 11 According to the third aspect of the present 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 above-mentioned liquid cooling assembly 300, which will not be repeated in this disclosure.

[0167] According to a fourth aspect of the present disclosure, a power-consuming device 950 is provided. The power-consuming device 950 includes the aforementioned battery pack 940. The power-consuming device 950 has all the advantages of the aforementioned battery pack 940, which are not further described in this disclosure. The power-consuming device 950 may include, but is not limited to, vehicles, energy storage power supplies, consumer electronics, medical equipment, and smart cities.

[0168] The embodiments of the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core ideas. At the same time, for those skilled in the art, according to the ideas of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A liquid cooling assembly (300), characterized in that: include: A first liquid cooling module (400) and a second liquid cooling module (500) for dissipating heat from the battery (200); as well as A joint assembly (600), wherein the first liquid cooling module (400) and the second liquid cooling module (500) are movably connected via the joint assembly (600), and the joint assembly (600) is used to conduct 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), wherein the first connector (700) is provided on the first liquid cooling module (400), and the second connector (800) is provided on the second liquid cooling module (500), and 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 into each other.

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 plugged in, the first connector (700) and the second connector (800) are capable of relative movement; And / or, the first liquid cooling module (400) is provided with a first limiting portion (450), and the second joint (800) is provided with a second limiting portion (820), in the separation direction of the second joint (800) relative to the first joint (700), the second limiting portion (820) and the first limiting portion (450) are arranged in sequence and opposite to each other, and the first limiting portion (450) is used for the second limiting portion (820) to resist.

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), wherein the first sealing ring (910) is arranged between the first joint (700) and the second joint (800).

5. The liquid cooling assembly (300) according to claim 4, characterized in that A first annular groove (711) is provided on the outer peripheral side of the first joint (700), and the first sealing ring (910) is provided 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), and the second sealing ring (920) is arranged between the first joint (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 provided between the end surface 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), and the third sealing ring (930) is arranged between the second joint (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 joint (800) has a third end and a fourth end opposite to each other, the third end is connected to the first joint (700), and the third sealing ring (930) is arranged between the end surface 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 fluid collector (420) connected to the first liquid cooling component (410), wherein the first liquid cooling component (410) is provided with a plurality of first liquid cooling channels (412), and the first fluid collector (420) is provided with a first collecting cavity (431), wherein the first collecting cavity (431) is in communication with the plurality of first liquid cooling channels (412), and the first joint (700) is in communication with the first fluid collector (420).

13. The liquid cooling assembly (300) according to claim 12, characterized in that The first joint (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 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 provided in the first limiting cavity (432). The first limiting cavity (432) is used to limit the third limiting portion (720) from being separated from the first limiting cavity (432).

15. The liquid cooling assembly (300) according to claim 14, characterized in that 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) is connected to the first collecting cavity (431), the first connector body (710) is passed through the first through hole (441), the third limiting portion (720) is movably provided in the first limiting cavity (432), and a movable gap is provided 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) provided on the first liquid cooling member (410), the first reflux member (460) is provided with a first reflux cavity (461), the first liquid cooling channel (412) is communicated with the first reflux cavity (461), a plurality of first collecting cavities (431) are provided, different first collecting cavities (431) are connected to different first liquid cooling channels (412), and a first collecting cavity (431) is communicated with the second liquid cooling module (500) via a joint assembly (600); And / or, the first current collector (420) is made of plastic.

17. The liquid cooling assembly (300) according to claim 12, characterized in that A first groove (411) is provided on the outer surface of the first liquid cooling member (410), and the first groove (411) is used to contact the peripheral side of the battery (200).

18. The liquid cooling assembly (300) according to claim 17, characterized in that The first liquid cooling member (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 the first groove (411); And / or, the first liquid-cooling component (410) is plate-shaped, and in the thickness direction of the first liquid-cooling component (410), the first groove (411) is opened on at least one side of the first liquid-cooling component (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 fluid collector (520) connected to the second liquid cooling component (510), wherein the second liquid cooling component (510) is provided with a plurality of second liquid cooling channels (512), and the second fluid collector (520) is provided with a second collecting chamber (531), wherein the second collecting chamber (531) is in communication with the plurality of second liquid cooling channels (512), and the second joint (800) is provided on the second fluid collector (520) and is in communication with the second fluid collector (520).

20. The liquid cooling assembly (300) according to claim 19, characterized in that The second joint (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 portion (830) provided 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 portion (830) is at least partially movably provided in the second limiting cavity (532). The second limiting cavity (532) is used to limit the fourth limiting portion (830) from being separated from the second limiting cavity (532).

22. The liquid cooling assembly (300) according to claim 21, characterized in that The cavity wall of the second limiting cavity (532) is provided with a second communicating hole (533) and a second through hole (541), the second communicating hole (533) is connected to the second collecting cavity (531), the second connector (800) body is passed through the second through hole (541), the fourth limiting portion (830) is movably provided in the second limiting cavity (532), and a movable gap is provided between the second connector (800) body 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) provided on the second liquid cooling member (510), the second reflux member (560) is provided with a second reflux chamber (561), the second liquid cooling channel (512) is communicated with the second reflux chamber (561), a plurality of second manifolds (531) are provided, different second manifolds (531) are connected to different second liquid cooling channels (512), and a second manifold (531) is communicated with the second liquid cooling module (500) via a joint assembly (600); And / or, the second current collector (520) is made of plastic.

24. The liquid cooling assembly (300) according to claim 19, characterized in that A second groove (511) is provided on the outer surface of the second liquid cooling member (510), and the second groove (511) is used to contact the peripheral side of the battery (200).

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

26. The liquid cooling assembly (300) according to claim 1, characterized in that The material of the first joint (700) and / or the second joint (800) is plastic; And / or, the first liquid cooling module (400) and the second liquid cooling module (500) are arranged at intervals, and the battery (200) is arranged between the first liquid cooling module (400) and the second liquid cooling module (500).

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

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

29. An electrical device (950), characterized in that: Comprising a battery pack (940) as claimed in claim 28.

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