Heat exchange assembly and battery pack

Abstract

The utility model relates to a heat exchange assembly and a battery pack and relates to the technical field of batteries, the heat exchange assembly comprises a heat exchange body and a busbar, the heat exchange body is provided with a main flow channel, a shunting area and a mounting groove, the shunting area is communicated with the main flow channel, and the shunting area and the mounting groove are distributed in a stacked mode in the thickness direction of the heat exchange body; the busbar is arranged in the mounting groove and is used for being connected with a pole of the battery cell; wherein part of the pole is used for penetrating through the shunting area and extending into the mounting groove, and the heat exchange medium in the shunting area is used for heat exchange of the busbar and the pole. According to the heat exchange assembly and the battery pack, the cooling effect on the pole can be improved, and the situation that the temperature of the pole is too high is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of batteries, and particularly to a heat exchange component and a battery pack. Background Art

[0002] A bus bar is connected to the pole of the battery cell. During the operation of the battery cell, current will pass through the pole and the bus bar of the battery cell, generating heat and increasing the temperature. In related technologies, in order to reduce the temperature of the pole and the bus bar, a heat exchange plate is usually arranged above the bus bar. The heat exchange plate directly cools the bus bar and indirectly cools the pole at the same time. However, the cooling effect on the pole is not good, which easily leads to too high a temperature of the pole. Utility Model Content

[0003] In order to solve the above technical problems, the embodiments of the present application provide a heat exchange component and a battery pack, which can improve the cooling effect on the pole and avoid the situation of too high a temperature of the pole.

[0004] In a first aspect, a heat exchange component is provided, including:

[0005] A heat exchange body, provided with a main flow channel, a flow division area and an installation groove. The flow division area is communicated with the main flow channel, and the flow division area and the installation groove are stacked along the thickness direction of the heat exchange body;

[0006] A bus bar, arranged in the installation groove, and the bus bar is used to connect the pole of the battery cell;

[0007] Wherein, a part of the pole is used to pass through the flow division area and extend into the installation groove, and the heat exchange medium in the flow division area is used to exchange heat with the bus bar and the pole.

[0008] According to the first aspect of the present application, the flow division area includes a first flow division groove and a second flow division groove which are spaced apart. The heat exchange body is provided with a first branch flow channel and a second branch flow channel which are stacked. The first branch flow channel communicates the main flow channel and the first flow division groove, and the second branch flow channel communicates the main flow channel and the second flow division groove. The installation groove is arranged between the first flow division groove and the second flow division groove, and the second flow division groove is used to surround the outer wall of the pole.

[0009] According to the first aspect of the present application, insulating layers are coated on the inner walls of the first flow division groove and the second flow division groove.

[0010] According to the first aspect of the present application, a welding channel is arranged in the first flow division groove. Both ends of the welding channel are used to communicate with the installation groove and the external environment respectively, and at least part of the bus bar corresponds to the welding channel.

[0011] According to the first aspect of the present application, the heat exchange body includes an upper plate, a first partition plate, a second partition plate, a lower plate, and connecting columns. The upper plate, the first partition plate, the second partition plate, and the lower plate are stacked in sequence. A first flow dividing groove is formed between the upper plate and the first partition plate, an installation groove is formed between the first partition plate and the second partition plate, and a second flow dividing groove is formed between the second partition plate and the lower plate; the lower plate is provided with a first through hole for the pole column to pass through, the second partition plate is provided with a second through hole for the pole column to pass through, the first through hole is communicated with the second through hole through the second flow dividing groove, and the second through hole is communicated with the installation groove;

[0012] Both ends of the connecting column are respectively connected to the upper plate and the lower plate, and the connecting column passes through and is connected to the first partition plate, the bus bar, and the second partition plate.

[0013] According to the first aspect of the present application, there is a gap between the outer peripheral wall of the bus bar and the inner peripheral wall of the installation groove, and the gap is filled with a heat-conducting adhesive.

[0014] According to the first aspect of the present application, the bus bar is provided with a through guide adhesive hole for guiding the heat-conducting adhesive above the top wall of the bus bar to flow into the area below the bottom wall of the bus bar.

[0015] According to the first aspect of the present application, the heat exchange body is provided with a liquid inlet and a liquid outlet, and both the liquid inlet and the liquid outlet are communicated with the main flow channel; in the direction from the liquid inlet to the liquid outlet, the cross-sectional area of the main flow channel gradually decreases.

[0016] According to the first aspect of the present application, the number of the flow dividing areas, the installation grooves, and the bus bars are all multiple and correspond one by one; a limiting block is abutted between any two adjacent bus bars.

[0017] In the second aspect, a battery pack is further provided, including:

[0018] The heat exchange assembly as described in the previous embodiment;

[0019] Multiple battery cells, and a bus bar is connected between the pole columns of any two adjacent battery cells.

[0020] The heat exchange assembly and the battery pack provided by the embodiments of the present application stack the flow dividing area and the installation groove, arrange the bus bar in the installation groove, and part of the pole column passes through the flow dividing area and extends into the installation groove, so that the heat exchange medium in the flow dividing area can not only directly heat exchange and cool the bus bar, but also directly heat exchange and cool the pole column. Compared with the scheme in the related art where the pole column indirectly exchanges heat with the cold plate through the bus bar, it can effectively improve the cooling effect on the pole column and avoid the situation of overhigh temperature of the pole column. Brief Description of the Drawings

[0021] The above and other objects, features, and advantages of the present application will become more apparent by describing the embodiments of the present application in more detail in conjunction with the accompanying drawings. The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation to the present application. In the drawings, the same reference numerals generally represent the same components or steps.

[0022] Figure 1 It is an exploded view of a battery pack provided for an exemplary embodiment of the present application.

[0023] Figure 2 It is a first cross-sectional view of a heat exchange component provided for an exemplary embodiment of the present application.

[0024] Figure 3 It is a second cross-sectional view of a heat exchange component provided for an exemplary embodiment of the present application.

[0025] Figure 4 It is a partial cross-sectional view of a heat exchange component provided for an exemplary embodiment of the present application.

[0026] Figure 5 It is a schematic structural view of a heat exchange component provided for an exemplary embodiment of the present application from a first perspective.

[0027] Figure 6 It is a schematic structural view of a busbar provided for an exemplary embodiment of the present application.

[0028] Figure 7 It is a schematic structural view of a heat exchange component provided for an exemplary embodiment of the present application from a second perspective.

[0029] Figure 8 It is a cross-sectional view of a battery pack provided for an exemplary embodiment of the present application.

[0030] Reference Numerals: 100 - heat exchange component; 110 - heat exchanger; 111 - main flow channel; 112 - flow distribution area; 1121 - first flow distribution groove; 1122 - second flow distribution groove; 1123 - welding channel; 113 - mounting groove; 114 - first branch flow channel; 115 - second branch flow channel; 116 - upper plate; 117 - first partition; 118 - second partition; 1181 - second through hole; 119 - lower plate; 1191 - first through hole; 120 - connecting column; 121 - liquid inlet; 122 - liquid outlet; 130 - busbar; 131 - glue guiding hole; 140 - gap; 150 - limiting block; 200 - battery pack; 210 - battery cell; 211 - pole post; 220 - heat conducting pad. Detailed Description of the Embodiments

[0031] Next, exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. It should be understood that the present application is not limited by the exemplary embodiments described herein.

[0032] Figure 1 An exploded view of a battery pack provided for an exemplary embodiment of the present application. As Figure 1 shown, the battery pack 200 provided in the embodiment of the present application may include a heat exchange component 100 and a plurality of battery cells 210. The heat exchange component 100 is disposed on the top of the plurality of battery cells 210, and the heat exchange component 100 can directly cool the pole columns 211 of the plurality of battery cells 210, improving the cooling effect on the pole columns 211.

[0033] As Figure 1 shown, the heat exchange component 100 may include a heat exchange body 110 and a bus bar 130. The bus bar 130 is disposed inside the heat exchange body 110, and a bus bar 130 is connected between the pole columns 211 of any two adjacent battery cells 210. The bus bar 130 can transfer current between the pole columns 211. It should be understood that during the process of transferring current, both the bus bar 130 and the pole column 211 will generate heat, resulting in a temperature increase.

[0034] It should be noted that after the heat exchange component 100 is disposed on the top wall of the plurality of battery cells 210, the pole columns 211 of the plurality of battery cells 210 will extend into the heat exchange body 110. On the one hand, it is convenient for the pole columns 211 to be directly connected to the bus bar 130 inside the heat exchange body 110; on the other hand, it is convenient for the heat exchange body 110 to directly cool the bus bar 130 and the pole columns 211, so that the operating temperatures of the bus bar 130 and the pole columns 211 are within the normal range, improving the cooling effect on the pole columns 211.

[0035] As Figure 1 shown, the battery pack 200 may further include a heat conductive pad 220. The heat conductive pad 220 is disposed between the heat exchange body 110 and the top wall of the battery cell 210. The heat conductive pad 220 can transfer heat between the heat exchange body 110 and the top wall of the battery cell 210, facilitating the heat exchange body 110 to cool the top wall of the battery cell 210, and the heat conductive pad 220 can prevent the heat exchange body 110 from directly contacting the top wall of the battery cell 210, reducing the probability of a short circuit accident.

[0036] Figure 2 A first cross-sectional view of a heat exchange component provided for an exemplary embodiment of the present application. Figure 3 A second cross-sectional view of a heat exchange component provided for an exemplary embodiment of the present application. Figure 4 A partial cross-sectional view of a heat exchange component provided for an exemplary embodiment of the present application. As Figures 2 to 4As shown in the figure, the heat exchanger 110 is provided with a main flow channel 111, a diversion area 112 and a mounting groove 113. The diversion area 112 is communicated with the main flow channel 111, and the diversion area 112 and the mounting groove 113 are stacked and distributed along the thickness direction of the heat exchanger 110 ( Figure 3 and Figure 4 the directions indicated by arrows B and C in the figure). The bus bar 130 is arranged in the mounting groove 113.

[0037] It should be understood that the heat exchange medium (including coolant, cooling gas, etc.) in the main flow channel 111 can enter the diversion area 112, and the heat exchange medium in the diversion area 112 can exchange heat with the bus bar 130 through the peripheral wall of the mounting groove 113, so as to realize the function of cooling the bus bar 130.

[0038] It should be noted that after the heat exchange assembly 100 is assembled on the top wall of the battery cell 210, a part of the pole post 211 can pass through the diversion area 112 and extend into the mounting groove 113. In this way, the heat exchange medium in the diversion area 112 can also exchange heat with the pole post 211 through the peripheral wall of the mounting groove 113, so as to realize the function of directly cooling the pole post 211.

[0039] It should be understood that for the heat exchange assembly 100 and the battery pack 200 provided in the embodiments of the present application, by stacking and distributing the diversion area 112 and the mounting groove 113, arranging the bus bar 130 in the mounting groove 113, and allowing a part of the pole post 211 to pass through the diversion area 112 and extend into the mounting groove 113, the heat exchange medium in the diversion area 112 can not only directly exchange heat and cool the bus bar 130, but also directly exchange heat and cool the pole post 211. Compared with the related art in which the pole post 211 can only indirectly exchange heat with the cold plate through the bus bar 130, the heat exchange assembly 100 and the battery pack 200 provided in the embodiments of the present application can effectively improve the cooling effect on the pole post 211 and avoid the situation of overhigh temperature of the pole post 211.

[0040] As Figure 3 and Figure 4 shown in the figure, the diversion area 112 includes a first diversion groove 1121 and a second diversion groove 1122 which are spaced apart. The heat exchanger 110 is provided with a first branch flow channel 114 and a second branch flow channel 115 which are stacked and distributed. The first branch flow channel 114 is communicated with the main flow channel 111 and the first diversion groove 1121, and the second branch flow channel 115 is communicated with the main flow channel 111 and the second diversion groove 1122. In this way, a part of the heat exchange medium in the main flow channel 111 can enter the first diversion groove 1121 through the first branch flow channel 114, and another part of the heat exchange medium can enter the second diversion groove 1122 through the second branch flow channel 115.

[0041] As Figure 3 and Figure 4As shown, the installation groove 113 is provided between the first flow - dividing groove 1121 and the second flow - dividing groove 1122. In this way, the heat - exchange medium entering the first flow - dividing groove 1121 and the second flow - dividing groove 1122 can cool the opposite sides of the bus bar 130 in the installation groove 113 respectively, which can improve the cooling efficiency of the bus bar 130.

[0042] As Figure 3 and Figure 4 shown, after the terminal post 211 extends into the installation groove 113, the second flow - dividing groove 1122 surrounds the outer wall of the terminal post 211. In this way, the heat - exchange medium in the second flow - dividing groove 1122 can also exchange heat with the terminal post 211 to directly cool the terminal post 211 and improve the cooling effect of the terminal post 211.

[0043] It should be noted that the inner walls of both the first flow - dividing groove 1121 and the second flow - dividing groove 1122 are coated with insulating layers. In this way, it can prevent the inner walls of the first flow - dividing groove 1121 and the second flow - dividing groove 1122 from being electrically connected to the bus bar 130, so that the heat - exchanger 110 and the bus bar 130 are insulated from each other, reducing the probability of short - circuit accidents.

[0044] It should be noted that the insulating layer coated on the inner wall of the second flow - dividing groove 1122 can also prevent the inner wall of the second flow - dividing groove 1122 from being electrically connected to the terminal post 211, so that the heat - exchanger 110 and the terminal post 211 are insulated from each other, reducing the probability of short - circuit accidents.

[0045] In one embodiment, the insulating layer is made of a thermally conductive insulating material, such as rubber, silicone grease, etc.

[0046] As Figure 3 and Figure 4 shown, a welding channel 1123 is provided in the first flow - dividing groove 1121. The two ends of the welding channel 1123 are respectively communicated with the installation groove 113 and the external environment, and at least part of the bus bar 130 corresponds to the welding channel 1123. In practical applications, when part of the terminal post 211 extends into the installation groove 113, the terminal post 211 can abut against the bus bar 130 in the installation groove 113. Then, an external welding needle can extend into the welding channel 1123, and then the bus bar 130 and the terminal post 211 are welded. That is to say, the welding channel 1123 can facilitate the welding needle to extend to the welding part of the bus bar 130 and the terminal post 211, facilitating the welding operation.

[0047] In one embodiment, the aperture of the welding channel 1123 is larger than the maximum outer diameter of the terminal post 211. In this way, it can facilitate the welding needle to be inserted on the outer wall of the terminal post 211, facilitating the welding of the bus bar 130 and the terminal post 211.

[0048] As Figure 3 and Figure 4As shown, the heat exchanger 110 includes an upper plate 116, a first partition 117, a second partition 118, a lower plate 119, and connecting columns 120. The upper plate 116, the first partition 117, the second partition 118, and the lower plate 119 are stacked in sequence along the thickness direction of the heat exchanger 110 ( Figure 3 and Figure 4 the directions indicated by arrows B and C in). A first flow dividing groove 1121 is formed between the upper plate 116 and the first partition 117, an installation groove 113 is formed between the first partition 117 and the second partition 118, a second flow dividing groove 1122 is formed between the second partition 118 and the lower plate 119. The two ends of the connecting column 120 are respectively connected to the upper plate 116 and the lower plate 119, and the connecting column 120 passes through and connects the first partition 117, the bus bar 130, and the second partition 118. In this way, the connecting column 120 (made of an insulating material) can relatively fix the first partition 117, the bus bar 130, and the second partition 118, so that a spacing is maintained between the bus bar 130 and the first partition 117 and between the bus bar 130 and the second partition 118, avoiding contact between the bus bar 130 and the first partition 117 and avoiding contact between the bus bar 130 and the second partition 118, reducing the probability of short - circuit accidents.

[0049] It should be noted that since the connecting column 120 can support and fix the bus bar 130, therefore, the embodiment of the present application can avoid using the CCS bracket in the related art to support and fix the bus bar 130, effectively saving the development and manufacturing costs of the CCS bracket.

[0050] Figure 5 is a schematic structural diagram of the heat exchange assembly provided by an exemplary embodiment of the present application from a first perspective. As Figure 4 and Figure 5 shown, the lower plate 119 is provided with a first through - hole 1191, and the second partition 118 is provided with a second through - hole 1181. The first through - hole 1191 and the second through - hole 1181 are communicated through the second flow dividing groove 1122, and the second through - hole 1181 is communicated with the installation groove 113. In this way, during the process of assembling the heat exchange assembly 100 on the battery cell 210, the pole post 211 of the battery cell 210 can pass through the first through - hole 1191, the second flow dividing groove 1122, and the second through - hole 1181 and enter the installation groove 113, so as to realize the mutual abutment of the pole post 211 and the bus bar 130, facilitating subsequent welding and fixing of the pole post 211 and the bus bar 130.

[0051] As Figure 4As shown, there is a gap 140 between the outer peripheral wall of the bus bar 130 and the inner peripheral wall of the installation groove 113. The gap 140 is filled with heat-conducting glue. On the one hand, the heat-conducting glue can transfer the heat of the bus bar 130 to the peripheral wall of the installation groove 113, improving the heat dissipation efficiency of the bus bar 130, and thus enhancing the cooling effect on the bus bar 130. On the other hand, the heat-conducting glue can also prevent the outer peripheral wall of the bus bar 130 from directly contacting the inner peripheral wall of the installation groove 113, which can reduce the probability of short-circuit accidents.

[0052] Figure 6 This is a schematic structural diagram of the bus bar provided by an exemplary embodiment of the present application. As Figure 6 shown, the bus bar 130 is provided with a through glue guide hole 131. In practical applications, heat-conducting glue is injected above the top wall of the bus bar 130. Part of the heat-conducting glue remains in the area above the top wall of the bus bar 130, and the other part of the heat-conducting glue can flow into the area below the bottom wall of the bus bar 130 under the guiding action of the glue guide hole 131. In this way, the glue guide hole 131 can facilitate the rapid injection of glue outside the bus bar 130, effectively improving the glue injection efficiency.

[0053] In one embodiment, the number of the glue guide holes 131 can be one, two, three, etc.

[0054] Figure 7 This is a schematic structural diagram of the heat exchange component provided by an exemplary embodiment of the present application from a second perspective. Combining Figure 2 and Figure 7 , the heat exchanger 110 is provided with a liquid inlet 121 and a liquid outlet 122. Both the liquid inlet 121 and the liquid outlet 122 are communicated with the main flow channel 111. The heat exchange medium enters the main flow channel 111 from the liquid inlet 121, and after heat exchange, flows out from the liquid outlet 122, and then after the temperature is reduced, flows into the liquid inlet 121 again to achieve the function of circulating heat exchange.

[0055] It should be understood that when the heat exchange medium enters the main flow channel 111 from the liquid inlet 121, the flow velocity and flow rate of the heat exchange medium in a part of the area of the main flow channel 111 close to the liquid inlet 121 are relatively large, while the flow velocity and flow rate of the heat exchange medium in a part of the area of the main flow channel 111 far from the liquid inlet 121 are relatively small. This easily leads to a relatively small flow velocity and flow rate of the heat exchange medium in the flow distribution area 112 communicated with the part of the main flow channel 111 far from the liquid inlet 121, and further results in a poor heat exchange effect. Therefore, as Figure 2 and Figure 7 shown, in the direction from the liquid inlet 121 to the liquid outlet 122 ( Figure 2In the direction indicated by arrow A, the cross-sectional area of the main flow channel 111 gradually decreases. In this way, by gradually reducing the cross-sectional area of the main flow channel 111, the flow velocity and flow rate of the heat exchange medium in the part of the main flow channel 111 far from the liquid inlet 121 can be increased, so that the flow velocity and flow rate of the heat exchange medium in different flow dividing areas 112 are basically the same, and good heat exchange and cooling effects can be achieved.

[0056] Figure 8 The cross-sectional view of the battery pack provided by an exemplary embodiment of the present application is as follows. Figure 2 and Figure 8 As shown, the number of the flow dividing areas 112, the mounting grooves 113, and the bus bars 130 are all multiple and correspond one by one. In this way, the heat exchange medium in each flow dividing area 112 can cool the bus bar 130 in the corresponding mounting groove 113, so that all the bus bars 130 can be cooled and the temperature can be reduced.

[0057] As Figure 1 and Figure 8 shown, a limiting block 150 is abutted between any two adjacent bus bars 130. In this way, on the one hand, the limiting block 150 can position the installation positions of the two adjacent bus bars 130, improving the installation accuracy of the bus bars 130; on the other hand, the limiting block 150 is made of insulating material, which can insulate the two adjacent bus bars 130 from each other, reducing the probability of short circuit accidents; on the third hand, the opposite sides of the limiting block 150 are respectively abutted against the first partition plate 117 and the second partition plate 118, and the limiting block 150 can support the first partition plate 117 and the second partition plate 118, preventing the first partition plate 117 and the second partition plate 118 from collapsing.

[0058] The basic principle of the present application has been described above in combination with specific embodiments. However, it should be noted that the advantages, advantages, effects, etc. mentioned in the present application are only examples and not limitations. It cannot be considered that these advantages, advantages, effects, etc. are essential for each embodiment of the present application. In addition, the above-disclosed specific details are only for the purpose of illustration and easy understanding, rather than limitations. The above details do not limit the present application to necessarily adopt the above specific details to implement.

[0059] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open-ended terms that mean "including but not limited to" and can be used interchangeably with each other. The word "or" and "and" used herein refer to the phrase "and / or" and can be used interchangeably with it, unless the context clearly indicates otherwise. The phrase "such as" used herein refers to the phrase "such as but not limited to" and can be used interchangeably with it.

[0060] It should also be noted that in the devices, equipment, and methods of this application, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent solutions of this application.

[0061] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

[0062] The above description has been given for purposes of illustration and description. In addition, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A heat exchange component, characterized in that, Comprising: A heat exchanger (110) provided with a main flow channel (111), a flow distribution area (112), and a mounting groove (113), wherein the flow distribution area (112) communicates with the main flow channel (111), and the flow distribution area (112) and the mounting groove (113) are stacked along the thickness direction of the heat exchanger (110); A bus bar (130) disposed in the mounting groove (113), and the bus bar (130) is used for connecting the pole post (211) of the battery cell (210); Wherein, a part of the pole post (211) is used to pass through the flow distribution area (112) and extend into the mounting groove (113), and the heat exchange medium in the flow distribution area (112) is used to exchange heat between the bus bar (130) and the pole post (211).

2. The heat exchange component according to claim 1, characterized in that, The flow distribution area (112) includes a first flow distribution groove (1121) and a second flow distribution groove (1122) that are spaced apart. The heat exchanger (110) is provided with a first branch flow channel (114) and a second branch flow channel (115) that are stacked. The first branch flow channel (114) communicates the main flow channel (111) and the first flow distribution groove (1121), the second branch flow channel (115) communicates the main flow channel (111) and the second flow distribution groove (1122), the mounting groove (11) is disposed between the first flow distribution groove (1121) and the second flow distribution groove (1122), and the second flow distribution groove (1122) is used to surround the outer wall of the pole post (211).

3. The heat exchange component according to claim 2, characterized in that, Insulating layers are coated on the inner walls of the first flow distribution groove (1121) and the second flow distribution groove (1122).

4. The heat exchange component according to claim 2, wherein A welding channel (1123) is provided in the first flow distribution groove (1121), and both ends of the welding channel (1123) are used to communicate with the mounting groove (113) and the external environment respectively, and at least a part of the bus bar (130) corresponds to the welding channel (1123).

5. The heat exchange component according to claim 2, characterized in that, The heat exchanger (110) includes an upper plate (116), a first partition (117), a second partition (118), a lower plate (119), and a connecting column (120). The upper plate (116), the first partition (117), the second partition (118), and the lower plate (119) are stacked in sequence. The first flow distribution groove (1121) is formed between the upper plate (116) and the first partition (117), the mounting groove (113) is formed between the first partition (117) and the second partition (118), and the second flow distribution groove (1122) is formed between the second partition (118) and the lower plate (119); the lower plate (119) is provided with a first through hole (1191) for the pole post (211) to pass through, the second partition (118) is provided with a second through hole (1181) for the pole post (211) to pass through, the first through hole (1191) is communicated with the second through hole (1181) through the second flow distribution groove (1122), and the second through hole (1181) is communicated with the mounting groove (113); Both ends of the connecting column (120) are respectively connected to the upper plate (116) and the lower plate (119), and the connecting column (120) passes through and is connected to the first partition plate (117), the bus bar (130), and the second partition plate (118).

6. The heat exchange component according to any one of claims 1 to 5, characterized in that There is a gap (140) between the outer peripheral wall of the bus bar (130) and the inner peripheral wall of the installation groove (113), and the gap (140) is filled with thermal conductive adhesive.

7. The heat exchange module according to claim 6, wherein The bus bar (130) is provided with a through glue guiding hole (131), and the glue guiding hole (131) is used to guide the thermal conductive adhesive above the top wall of the bus bar (130) to flow into the area below the bottom wall of the bus bar (130).

8. The heat exchange component according to any one of claims 1 to 5, characterized in that The heat exchanger (110) is provided with a liquid inlet (121) and a liquid outlet (122), and both the liquid inlet (121) and the liquid outlet (122) are communicated with the main flow channel (111); in the direction from the liquid inlet (121) to the liquid outlet (122), the cross-sectional area of the main flow channel (111) gradually decreases.

9. The heat exchange component according to any one of claims 1 to 5, characterized in that, The number of the flow splitting areas (112), the installation grooves (113), and the bus bars (130) are all multiple and correspond one by one; a limiting block (150) is abutted between any two adjacent bus bars (130).

10. A battery pack, characterized in that, Comprising: The heat exchange assembly according to any one of claims 1 to 9; A plurality of battery cells (210), and the bus bar (130) is connected between the pole columns (211) of any two adjacent battery cells (210).

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