Thermal management device and battery pack

Abstract

The utility model relates to a heat management device and a battery pack. The heat management device comprises a heat exchange assembly and a connecting assembly. The heat exchange assembly comprises a plurality of heat exchange pieces distributed at intervals in the first direction. Every two adjacent heat exchange pieces are connected through the corresponding connecting assembly, and a containing space is defined by the heat exchange pieces and the corresponding connecting assembly. Wherein each heat exchange piece is provided with a medium flow channel, an inlet and an outlet, the inlet and the outlet are communicated with the medium flow channel, the connecting assembly is provided with a first channel and a second channel, the first channel is communicated between the inlets of the two adjacent heat exchange pieces, and the second channel is communicated between the outlets of the two adjacent heat exchange pieces. And the second channel is communicated between the outlets of the two adjacent heat exchange pieces. According to the embodiment of the invention, the thermal management effect can be improved while the thermal management efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of thermal management device technology, and more particularly to a thermal management device and a battery pack. Background Technology

[0002] With the rapid development of new energy vehicles, people have placed higher demands on battery safety. During the charging and discharging process, a large amount of heat is generated inside the battery. If this heat cannot dissipate quickly, it can lead to excessively high internal battery temperatures, potentially causing safety issues such as thermal runaway.

[0003] To ensure that the battery remains within a preset temperature range during charging and discharging, a thermal management device is usually installed in the battery. However, existing thermal management devices have low thermal management efficiency and poor thermal management effect, which can easily lead to uneven battery temperature. Utility Model Content

[0004] This utility model provides a thermal management device and a battery pack that can improve thermal management efficiency and thermal management effect.

[0005] On one hand, according to an embodiment of this application, a thermal management device is proposed, comprising: a heat exchange assembly including a plurality of heat exchange elements spaced apart along a first direction; a connecting assembly, wherein two adjacent heat exchange elements are connected by the connecting assembly and enclosed by the connecting assembly to form a receiving space; wherein each heat exchange element has a medium flow channel and an inlet and an outlet respectively communicating with the medium flow channel, and the connecting assembly has a first channel and a second channel, the first channel communicating between the inlets of two adjacent heat exchange elements, and the second channel communicating between the outlets of two adjacent heat exchange elements.

[0006] According to one aspect of the embodiments of this application, the heat exchange assembly further includes an inlet pipe and an outlet pipe, both of which are connected to the same heat exchange element located on the outermost side of the heat exchange assembly along the first direction. The inlet pipe communicates with the inlet of the heat exchange element, and the outlet pipe communicates with the outlet of the heat exchange element.

[0007] According to one aspect of the present application, the heat exchanger has a dimension in a second direction that is larger than the dimension in a third direction, and the connecting assembly includes connecting members arranged in pairs and spaced apart along the second direction, wherein the first direction, the second direction, and the third direction intersect each other.

[0008] According to one aspect of the embodiments of this application, the first channel and the second channel are both disposed on the same connector.

[0009] According to one aspect of the embodiments of this application, along the first direction, the connector is connected between two adjacent heat exchangers, the first channel extends along the first direction, and the second channel extends along the first direction.

[0010] According to one aspect of the present application, the connector is detachably connected to at least one of two adjacent heat exchangers.

[0011] According to one aspect of the present application, the thermal management device further includes a fastener that is inserted into the connector and a portion of the heat exchangers along the first direction, wherein a portion of the heat exchangers are detachably connected to the connector via the fastener.

[0012] According to one aspect of the embodiments of this application, a portion of the heat exchanger has a plurality of first holes extending along the first direction, the first holes being spaced apart from the inlet and the outlet, the connector having a plurality of second holes, the second holes being spaced apart from the first channel and the second channel, the first holes and the second holes communicating along the first direction and being alternately arranged, and the fastener being inserted into the first holes and the second holes.

[0013] According to one aspect of the embodiments of this application, the thermal management device further includes a seal; the connector is recessed inward along at least one side surface in the first direction to form a first groove, the first groove surrounding the first channel and the second channel, and the seal is disposed in the first groove; and / or, the heat exchange member is recessed inward along at least one side surface in the first direction to form a second groove, the second groove surrounding the inlet and the outlet, and the seal is disposed in the second groove.

[0014] On the other hand, according to an embodiment of this application, a battery pack is provided, including: a thermal management device as described above; and a battery module disposed in the accommodating space, wherein the first direction is the height direction of the battery pack.

[0015] The thermal management device and battery pack provided in this application embodiment include a heat exchange component and a connecting component. By configuring the heat exchange component to include multiple heat exchange elements spaced apart along a first direction, the heat exchange component to be heat exchanged within the accommodating space can exchange heat with the heat exchange elements on both sides along the first direction, allowing the temperature of the heat exchange component to be heat exchanged to be adjusted to a preset range more quickly, which is beneficial to improving the thermal management efficiency of the thermal management device. Furthermore, by connecting the connecting component with a first channel between the inlets of two adjacent heat exchange elements and a second channel between the outlets of two adjacent heat exchange elements, the heat exchange medium can flow through the medium flow channel of each heat exchange element through the connecting component, so that the medium flow channels of multiple heat exchange elements are arranged in parallel, which can make the flow of the heat exchange medium in multiple heat exchange elements more uniform, thereby avoiding the temperature difference problem caused by uneven heat exchange, and thus improving the thermal management effect of the thermal management device. Attached Figure Description

[0016] The features, advantages, and technical effects of exemplary embodiments of this application will now be described with reference to the accompanying drawings.

[0017] Figure 1 This is an exploded structural diagram of a thermal management device according to an embodiment of this application;

[0018] Figure 2 This is a partial cross-sectional view of a heat exchanger in a thermal management device according to an embodiment of this application;

[0019] Figure 3 This is a partial cross-sectional view of a connector in a thermal management device according to an embodiment of this application;

[0020] Figure 4 for Figure 3 Enlarged view of point P in the middle;

[0021] Figure 5 This is a schematic diagram of the structure of a battery pack according to one embodiment of this application;

[0022] Figure 6 This is a partial cross-sectional view of a pool package according to an embodiment of this application.

[0023] in:

[0024] 1. Battery pack; 100. Thermal management device; 101. Housing space; 200. Battery module;

[0025] 10. Heat exchange assembly; 11. Heat exchange element; 111. Medium flow channel; 112. Inlet; 113. Outlet; 114. First orifice;

[0026] 20. Connecting component; 21. Connector; 201. First channel; 202. Second channel; 203. Second hole; 204. First groove;

[0027] 31. Inlet pipe; 32. Outlet pipe; 40. Fastener; 50. Seal;

[0028] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0029] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0030] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the thermal management device and battery pack of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] The technical solutions described in the embodiments of this application are applicable to battery packs and electrical devices using battery packs.

[0032] Electrical devices can include vehicles, ships, spacecraft, electric toys, and power tools, etc. Vehicles can be gasoline-powered cars, natural gas-powered cars, or new energy vehicles; new energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. Spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc. Electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc. This application does not impose any special limitations on the above-mentioned electrical devices.

[0033] To better understand this application, the following will be combined with... Figures 1 to 6 The thermal management device and battery pack according to the embodiments of the application will be described in detail.

[0034] Currently, the thermal management devices in battery packs can usually only perform thermal management on one side of the battery, resulting in low thermal management efficiency and easy to cause uneven battery temperature, thus affecting the performance of the battery pack.

[0035] In view of the above-mentioned defects, the present application provides a thermal management device that can improve heat exchange efficiency and improve thermal management effect.

[0036] The thermal management device provided in this application embodiment can be manufactured and sold separately as an independent component, or it can be used in a battery pack as a component of the battery pack.

[0037] Please refer to the following: Figures 1 to 6 This application provides a thermal management device 100, including a heat exchange assembly 10 and a connecting assembly 20. The heat exchange assembly 10 includes a plurality of heat exchange elements 11 spaced apart along a first direction X. Adjacent heat exchange elements 11 are connected by the connecting assembly 20 and enclosed by the connecting assembly 20 to form a receiving space 101. Each heat exchange element 11 has a medium flow channel 111 and an inlet 112 and an outlet 113 respectively communicating with the medium flow channel 111. The connecting assembly 20 has a first channel 201 and a second channel 202. The first channel 201 communicates between the inlets 112 of two adjacent heat exchange elements 11, and the second channel 202 communicates between the outlets 113 of two adjacent heat exchange elements 11.

[0038] The thermal management device 100 provided in this application embodiment, by configuring the heat exchange assembly 10 to include a plurality of heat exchange elements 11 spaced apart along the first direction X, enables the heat exchange component to be heat exchanged in the accommodating space 101 to exchange heat with the heat exchange elements 11 on both sides along the first direction X, so that the temperature of the heat exchange component to be heat exchanged can be adjusted to a preset range more quickly, which is beneficial to improving the thermal management efficiency of the thermal management device 100. Furthermore, by connecting the first channel 201 of the connecting assembly 20 to the inlet 112 of two adjacent heat exchange elements 11, and the second channel 202 to the outlet 113 of two adjacent heat exchange elements 11, the heat exchange medium can flow through the medium flow channel 111 of each heat exchange element 11 through the connecting assembly 20, so that the medium flow channels 111 of the multiple heat exchange elements 11 are arranged in parallel, which makes the flow of the heat exchange medium in the multiple heat exchange elements 11 more uniform, thereby avoiding the temperature difference problem caused by uneven heat exchange, and thus improving the thermal management effect of the thermal management device 100.

[0039] Heat exchange should be understood as the transfer of heat between the heat exchanger 11 and the component to be heat exchanged. The thermal management device 100 uses the heat exchanger 11 to dissipate heat and cool down or heat up the component to be heat exchanged located in the housing space 101, so as to regulate the temperature of the component to be heat exchanged to a suitable range, thereby improving the service life and safety performance of the component to be heat exchanged.

[0040] The thermal management device 100 provided in this application embodiment has a accommodating space 101 for accommodating the heat exchange component to be thermally managed. For the sake of simplicity, the heat exchange component will be described as the battery module 200 below.

[0041] Each heat exchanger 11 is provided with a medium flow channel 111 for the flow of heat exchange medium to absorb or release heat, so that each heat exchanger 11 can independently and effectively exchange heat with the battery module 200 contained in the housing space 101.

[0042] In the thermal management device 100, the heat exchange medium can enter the medium flow channel 111 through the inlet 112 of a heat exchange element 11, and the heat exchange medium in the medium flow channel 111 can be discharged through the outlet 113 of a heat exchange element 11. The first channel 201 is connected between two adjacent inlets 112 to ensure that the heat exchange medium flows smoothly into the next heat exchange element 11 through the inlet 112 of the previous heat exchange element 11 and the first channel 201. The second channel 202 is connected between two adjacent outlets 113 to ensure that the heat exchange medium flows smoothly into the next heat exchange element 11 through the outlet 113 of the previous heat exchange element 11 and the second channel 202, and is then discharged through the outlet 113 of the heat exchange element 11.

[0043] By setting the connecting component 20 to arrange multiple heat exchangers 11 in parallel, the heat exchange medium obtained in the medium flow channel 111 of each heat exchanger 11 can be more uniform, which helps to reduce the temperature difference of the battery module 200 and improve the performance of the battery module 200. In addition, when the heat exchange medium enters the thermal management device 100 through the inlet 112 of a certain heat exchanger 11, the heat exchange medium can flow through each layer of heat exchangers 11 at the same time, thereby reducing the water resistance in each medium flow channel 111 and improving the thermal management efficiency of the thermal management device 100.

[0044] Optionally, the thermal management device 100 can be a rectangular structure, wherein the first direction X can be the height direction of the thermal management device 100, the second direction Y can be the length direction of the thermal management device 100, and the third direction Z can be the width direction of the thermal management device 100.

[0045] The housing space 101 can be set to one, two, or more. It is understood that the number of heat exchanger 11 is one more than the number of housing spaces 101.

[0046] As an example, in this embodiment of the application, the heat exchange assembly 10 includes three heat exchange elements 11, two connecting components 20, and two accommodating spaces 101.

[0047] The heat exchanger 11 can be a rectangular plate structure to increase the stability of its connection with the battery module 200. Optionally, the heat exchanger 11 can be an air-cooled plate or a liquid-cooled plate. The heat exchanger 11 can be extruded from an aluminum alloy profile to form a medium flow channel 111.

[0048] Optionally, the heat exchange medium may include pure water, a mixture of water and ethylene glycol, and oil, which are liquids with high specific heat and easy flow. Of course, the heat exchange medium may also include gas.

[0049] In some embodiments, the connecting component 20 may be connected between two adjacent heat exchangers 11 along the first direction X, and may also be connected to one side of two adjacent heat exchangers 11 along the second direction Y.

[0050] like Figure 1 and Figure 5 As shown, in some optional embodiments, the heat exchange assembly 10 further includes an inlet pipe 31 and an outlet pipe 32, both of which are connected to the same heat exchange element 11 on the outermost side of the heat exchange assembly 10 along the first direction X. The inlet pipe 31 is connected to the inlet 112 of the heat exchange element 11, and the outlet pipe 32 is connected to the outlet 113 of the heat exchange element 11.

[0051] Inlet pipe 31 is used to introduce the heat exchange medium, and outlet pipe 32 is used to discharge the heat exchange medium that has absorbed heat.

[0052] By providing an inlet pipe 31 and an outlet pipe 32 on the same heat exchanger 11, the structure of the heat management device 100 can be simplified, the space utilization of the heat management device 100 can be improved, and it is also convenient for assembly and maintenance. In addition, the number of inlet pipes 31 and outlet pipes 32 can be reduced, which helps to reduce costs and reduce the risk of leakage.

[0053] For example, both the inlet pipe 31 and the outlet pipe 32 are connected to the heat exchange element 11 at the top along the first direction X in the heat exchange assembly 10.

[0054] Please continue reading. Figure 1 In some alternative embodiments, the size of the heat exchanger 11 in the second direction Y is larger than the size of the heat exchanger 11 in the third direction Z, and the connecting assembly 20 includes connecting members 21 arranged in pairs and spaced apart along the second direction Y, with the first direction X, the second direction Y and the third direction Z intersecting each other.

[0055] The first channel 201 and the second channel 202 can be respectively set in one of the connectors 21. Of course, the first channel 201 can also be set in one of the connectors 21 and the second channel 202 can be set in the other connector 21.

[0056] With the above configuration, two adjacent heat exchange components 11 can be connected by two spaced connectors 21, which can enhance the structural stability of the thermal management device 100. Furthermore, the two connectors 21 in the connection assembly 20 are spaced apart along the second direction Y, which helps to reduce the structural size of the connectors 21, resulting in a reasonable layout and lower costs.

[0057] like Figure 3 and Figure 6 As shown, in some alternative embodiments, the first channel 201 and the second channel 202 are both disposed on the same connector 21.

[0058] It is understandable that the heat exchange medium in the first channel 201 has a different temperature than the heat exchange medium in the second channel 202. By setting the first channel 201 and the second channel 202 in the same connector 21, the temperature of the part of the battery module 200 near the connector 21 can be balanced to ensure the uniformity of the temperature of the battery module 200, thereby improving the thermal management effect of the thermal management device 100. Furthermore, by setting it in the above manner, the structural layout can be further simplified and assembly can be facilitated.

[0059] In some alternative embodiments, the connector 21 is connected between two adjacent heat exchangers 11 along the first direction X, the first channel 201 extends along the first direction X, and the second channel 202 extends along the first direction X.

[0060] By setting it up in the above manner, it is beneficial to increase the flow rate of the heat exchange medium in the first channel 201 and the second channel 202, that is, to increase the flow rate of the heat exchange medium between multiple heat exchange components 11, thereby improving the thermal management efficiency of the thermal management device 100, and also facilitating the processing and manufacturing of the connecting components 20, thus reducing the processing difficulty.

[0061] Furthermore, it enables the medium flow channel 111, the first channel 201 and the second channel 202 to form a compact flow channel layout for the flow of heat exchange medium, which helps to reduce the resistance and energy loss of the heat exchange medium flow, improve the efficiency of heat exchange medium transmission in the heat management device 100, and thus improve the heat management efficiency of the heat management device 100.

[0062] In some alternative embodiments, the connector 21 is detachably connected to at least one of two adjacent heat exchangers 11.

[0063] This configuration facilitates the maintenance and replacement of the connector 21 or heat exchanger 11, reducing maintenance difficulty and cost. Furthermore, it facilitates the assembly of the battery module 200 into the receiving space 101, helping to avoid problems such as the battery module 200 scraping against the connector 21 or heat exchanger 11 during assembly, thereby ensuring the safety of the battery module 200 and improving the reliability of the thermal management device 100.

[0064] like Figure 1 As shown, for example, in the thermal management device 100, the connector 21 is fixedly connected to the heat exchanger 11 located below it along the first direction X. The two can be welded or integrally molded. The connector 21 is detachably connected to the heat exchanger 11 located above it along the first direction X.

[0065] Please see Figure 1 and Figure 6 In some alternative embodiments, the thermal management device 100 further includes a fastener 40, which is inserted into the connector 21 and a portion of the heat exchangers 11 along a first direction X. The portion of the heat exchangers 11 is detachably connected to the connector 21 via the fastener 40.

[0066] By setting it in the above manner, the stability and reliability of the connection between the heat exchanger 11 and the connector 21 can be ensured, thereby improving the reliability of the thermal management device 100.

[0067] Optionally, the fastener 40 can be any of a bolt, thread, stud, etc.

[0068] like Figure 6 As shown, there are four fasteners 40. The thermal management device 100 has two fasteners 40 on each side along the second direction Y. There are three heat exchange components 11 and four connectors 21. Two connectors 21 are provided between two adjacent heat exchange components 11. Each connector 21 is welded to or integrally formed with the heat exchange component 11 located below it along the first direction X. Each fastener 40 is inserted into the two heat exchange components 11 and the two connectors 21 above it along the first direction X.

[0069] Please see Figure 2 , Figure 3 and Figure 6 In some optional embodiments, a number of heat exchangers 11 have a plurality of first holes 114 extending along the first direction X. The first holes 114 are spaced apart from the inlet 112 and the outlet 113, respectively. The connector 21 has a plurality of second holes 203. The second holes 203 are spaced apart from the first channel 201 and the second channel 202, respectively. The first holes 114 and the second holes 203 are connected along the first direction X and are alternately arranged. The fastener 40 is inserted into the first holes 114 and the second holes 203.

[0070] For example, two heat exchangers 11 each have four first holes 114 extending along the first direction X, and a connector 21 located between the two heat exchangers 11 has four second holes 203 extending along the first direction X. Another connector 21 has four second holes 203 that do not extend through itself. The first holes 114 and the second holes 203 are connected along the first direction X and are alternately arranged. Fasteners 40 are inserted into the first holes 114 and the second holes 203 in the first direction X to connect the heat exchangers 11 and the connectors 21.

[0071] By setting it in the above manner, the fastener 40 can be positioned, the number of fasteners 40 used can be reduced, assembly can be facilitated, and costs can be reduced.

[0072] Please see Figure 3 and Figure 4 In some alternative embodiments, the thermal management device 100 further includes a seal 50. The connector 21 is recessed inward along at least one side surface in the first direction X to form a first groove 204, the first groove 204 surrounding the first channel 201 and the second channel 202, and the seal 50 is disposed within the first groove 204.

[0073] There are two first grooves 204, and each first groove 204 is embedded with a seal 50. When the heat exchanger 11 is connected to the connector 21, the seal 50 can be compressed and tightly fitted between the first groove 204 and the surface of the heat exchanger 11 to form an effective sealing barrier. This prevents the heat exchange medium from leaking from the connection between the heat exchanger 11 and the connector 21 when it flows between the inlet 112 and the first channel 201, and between the outlet 113 and the second channel 202. It also prevents external impurities and other particles from entering through this connection to contaminate the heat exchange medium, thereby improving the reliability of the thermal management device 100.

[0074] In some alternative embodiments, the heat exchanger 11 is recessed inward along at least one side surface in the first direction X to form a second groove, the second groove surrounding the inlet 112 and the outlet 113, and a seal 50 is provided in the second groove.

[0075] There are two second grooves, each of which is embedded with a seal 50. When the heat exchanger 11 is connected to the connector 21, the seal 50 can be compressed and tightly fitted between the surface of the second groove and the connector 21 to form an effective sealing barrier. This prevents the heat exchange medium from leaking from the connection between the heat exchanger 11 and the connector 21 when it flows between the inlet 112 and the first channel 201, and between the outlet 113 and the second channel 202. It also prevents external impurities and other particles from entering through this connection to contaminate the heat exchange medium, thereby improving the reliability of the thermal management device 100.

[0076] For example, the connector 21 has two first grooves 204 on either side of the surface along the first direction X. Optionally, the seal 50 can be any of an O-ring, gasket, sealant, etc.

[0077] Please see Figure 5 as well as Figure 6 This application also provides a battery pack 1, including a thermal management device 100 as provided in any of the above embodiments and a battery module 200. The battery module 200 is disposed in a receiving space 101, wherein the first direction X is the height direction of the battery pack 1.

[0078] The battery pack 1 provided in this application includes a thermal management device 100 as provided in any of the above embodiments, which can improve thermal management efficiency and thermal management effect. Therefore, it is beneficial to ensure that the temperature of the battery module 200 can be quickly adjusted to a preset range, thereby improving the reliability and service life of the battery pack 1.

[0079] like Figure 5 As shown, the heat exchanger 11 can limit and protect the battery module 200 on either side of the first direction X, and the connector 21 can limit and protect the battery module 200 on either side of the second direction Y, so as to ensure the safety of the battery module 200.

[0080] Optionally, the battery pack 1 may also include a side plate surrounding the receiving space 101 on either side of the third direction Z and connected to at least one of the heat exchanger 11 and the connector 21. The side plate can limit and protect the battery module 200 on either side of the third direction Z to ensure the safety of the battery module 200.

[0081] like Figure 5 As shown, the battery module 200 may include multiple battery cells arranged along the second direction Y. The electrode terminals of the battery cells are located on one or both sides along the third direction Z. This arrangement can avoid interference between the heat exchanger 11 and the electrode terminals, thus preventing safety issues. It also ensures the effectiveness of heat exchangers 11 on both sides of the battery module 200 along the first direction X. The layout is reasonable, and the battery module 200 can exchange heat with the heat exchanger 11 on both sides of the first direction X, so that the temperature of each battery cell can be adjusted to the preset range more quickly. This is beneficial to ensuring the safe operation of the battery module 200 and the charging and discharging efficiency.

[0082] Furthermore, since the thermal management device 100 provided in this application embodiment can perform simultaneous thermal management on both sides of the battery module 200, it can ensure that the temperature of the battery module 200 is uniform and that no temperature difference is generated, thereby helping to ensure the service life of the battery pack 1.

[0083] Optionally, the battery cell can be a blade battery cell.

[0084] Optionally, the number of battery modules 200 is the same as the number of accommodating spaces 101, and one accommodating space 101 corresponds to one battery module 200. Each battery cell in the battery module 200 can be connected to the heat exchanger 11 by means of structural adhesive bonding.

[0085] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A thermal management device, characterized in that, include: The heat exchange assembly (10) includes a plurality of heat exchange elements (11) spaced apart along a first direction (X); A connecting assembly (20) is used to connect two adjacent heat exchangers (11) and to enclose a receiving space (101) formed by the connecting assembly (20); Each heat exchanger (11) has a medium flow channel (111) and an inlet (112) and an outlet (113) communicating with the respective medium flow channel (111). The connecting assembly (20) has a first channel (201) and a second channel (202). The first channel (201) is connected between the inlets (112) of two adjacent heat exchangers (11), and the second channel (202) is connected between the outlets (113) of two adjacent heat exchangers (11).

2. The thermal management device according to claim 1, characterized in that, The heat exchange assembly (10) further includes an inlet pipe (31) and an outlet pipe (32), both of which are connected to the same heat exchange element (11) on the outermost side of the heat exchange assembly (10) along the first direction (X). The inlet pipe (31) is connected to the inlet (112) of the heat exchange element (11), and the outlet pipe (32) is connected to the outlet (113) of the heat exchange element (11).

3. The thermal management device according to claim 2, characterized in that, The heat exchanger (11) has a larger dimension in the second direction (Y) than the heat exchanger (11) in the third direction (Z). The connecting assembly (20) includes connecting members (21) arranged in pairs and spaced apart along the second direction (Y). The first direction (X), the second direction (Y) and the third direction (Z) intersect each other.

4. The thermal management device according to claim 3, characterized in that, The first channel (201) and the second channel (202) are both disposed on the same connector (21).

5. The thermal management device according to claim 3, characterized in that, Along the first direction (X), the connector (21) is connected between two adjacent heat exchangers (11), the first channel (201) extends along the first direction (X), and the second channel (202) extends along the first direction (X).

6. The thermal management device according to claim 5, characterized in that, The connector (21) is detachably connected to at least one of the two adjacent heat exchangers (11).

7. The thermal management device according to claim 6, characterized in that, The thermal management device further includes a fastener (40) that is inserted into the connector (21) and a portion of the heat exchanger (11) along the first direction (X), and the portion of the heat exchanger (11) is detachably connected to the connector (21) via the fastener (40).

8. The thermal management device according to claim 7, characterized in that, A portion of the heat exchanger (11) has a plurality of first holes (114) extending along the first direction (X), the first holes (114) being spaced apart from the inlet (112) and the outlet (113), the connector (21) having a plurality of second holes (203), the second holes (203) being spaced apart from the first channel (201) and the second channel (202), the first holes (114) and the second holes (203) communicating along the first direction (X) and being alternately arranged, and the fastener (40) being inserted into the first holes (114) and the second holes (203).

9. The thermal management device according to claim 6, characterized in that, The thermal management device also includes a seal (50); The connector (21) is recessed inward along at least one side surface in the first direction (X) to form a first groove (204), the first groove (204) surrounding the first channel (201) and the second channel (202), and the sealing element (50) is disposed in the first groove (204); and / or, the heat exchanger (11) is recessed inward along at least one side surface in the first direction (X) to form a second groove, the second groove surrounding the inlet (112) and the outlet (113), and the sealing element (50) is disposed in the second groove.

10. A battery pack, characterized in that, include: The thermal management device as described in any one of claims 1 to 9; A battery module (200) is disposed in the accommodating space (101), wherein the first direction (X) is the height direction of the battery pack (1).

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