Heat exchange device and battery pack
Patent Information
- Application Number
- CN202522207594.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-17
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-10-17
AI Technical Summary
[0014] The heat exchange device of this application embodiment, by setting a first heat exchange element extending along a first direction and a second heat exchange element extending along a third direction, forms a heat exchange space that can simultaneously dissipate heat from both sides of the battery cell, increasing heat dissipation efficiency and enabling the temperature of the battery cell to be effectively controlled during high-power charging, preventing the battery cell temperature from becoming too high, thereby effectively improving the safety and service life of the battery cell.
Smart Images
Figure CN224862283U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery heat exchange technology, and in particular to a heat exchange device and a battery pack. Background Technology
[0002] In related fields, when battery packs are charged at high power, the battery cells generate a lot of heat, which affects the lifespan and safety of the battery cells, requiring rapid cooling of the battery cells. Utility Model Content
[0003] This application provides a heat exchange device and a battery pack to at least partially solve the above-mentioned technical problems.
[0004] To achieve the above objectives, according to a first aspect of this application, a heat exchange device is provided, comprising a heat exchange assembly, a flow divider, and a flow collector. The heat exchange assembly includes a first heat exchanger extending along a first direction and a second heat exchanger extending along a third direction. The first heat exchanger has a first flow channel extending along a second direction, and the second heat exchanger has a second flow channel extending along the second direction. The first heat exchanger is connected to one side of the second heat exchanger in the first direction and forms a heat exchange space with the second heat exchanger. The flow divider has a flow divider cavity and a liquid inlet. The flow divider is connected to one end of the heat exchange assembly in the second direction and covers the first and second flow channels. The flow divider cavity connects the first flow channel, the second flow channel, and the liquid inlet. The flow collector has a flow collector cavity and a liquid outlet. The flow collector is connected to the end of the heat exchange assembly in the second direction away from the flow divider and covers the first and second flow channels. The flow collector cavity connects the first flow channel, the second flow channel, and the liquid outlet. The first, second, and third directions intersect each other.
[0005] Optionally, the flow divider includes a first flow divider and a second flow divider, the first flow divider covering a first flow channel and the second flow divider covering a second flow channel; an inlet is disposed on the second flow divider and extends along a first direction toward one side of the first flow divider. The flow collector includes a first flow collector and a second flow collector, the first flow collector covering a first flow channel and the second flow collector covering a second flow channel; an outlet is disposed on the second flow collector and extends along a first direction toward one side of the first flow collector.
[0006] Optionally, the flow-dividing cavity includes a first inner cavity and a second inner cavity. The first inner cavity is disposed within the first flow-dividing section and communicates with the first flow channel; the second inner cavity is disposed within the second flow-dividing section and communicates with the first inner cavity and the second flow channel. The flow-collecting cavity includes a third inner cavity and a fourth inner cavity. The third inner cavity is disposed within the first flow-collecting section and communicates with the first flow channel; the fourth inner cavity is disposed within the second flow-collecting section and communicates with the third inner cavity and the second flow channel.
[0007] Optionally, the flow divider covers the heat exchange assembly, and the flow divider includes a first limiting portion disposed within the flow divider cavity, the first limiting portion abutting against the heat exchange assembly. The flow collector covers the heat exchange assembly, and the flow collector includes a second limiting portion disposed within the flow collector cavity, the second limiting portion abutting against the heat exchange assembly.
[0008] Optionally, the second heat exchanger and the first heat exchanger form two heat exchange spaces, and the two heat exchange spaces have the same dimensions in the third direction.
[0009] Optionally, the first flow channel is provided in multiple ways and is spaced apart along the first direction; the second flow channel is provided in multiple ways and is spaced apart along the third direction.
[0010] According to a second aspect of this application, a battery pack is provided, including a heat exchange device and a battery cell as described above, wherein the battery cell is disposed within a heat exchange space.
[0011] Optionally, the heat exchange device has multiple components, spaced apart along a third direction. The battery pack also includes multiple battery cells, an inlet pipe, and an outlet pipe. At least some of the battery cells are spaced apart along a third direction, each battery cell is disposed within a heat exchange space and is thermally connected to the heat exchange device. The inlet pipe includes multiple branch pipes, each branch pipe connected to an inlet. The outlet pipe includes multiple manifolds, each manifold connected to an outlet.
[0012] Optionally, at least two cells are spaced apart in the heat exchange space along a second direction, and a first insulating element is provided between adjacent cells along the second direction; a second insulating element is provided between adjacent cells along a third direction.
[0013] Optionally, the second insulating member has a clearance notch that penetrates the second insulating member in a third direction.
[0014] The heat exchange device of this application embodiment, by setting a first heat exchange element extending along a first direction and a second heat exchange element extending along a third direction, forms a heat exchange space that can simultaneously dissipate heat from both sides of the battery cell, increasing heat dissipation efficiency and enabling the temperature of the battery cell to be effectively controlled during high-power charging, preventing the battery cell temperature from becoming too high, thereby effectively improving the safety and service life of the battery cell.
[0015] In the battery pack of this application embodiment, the battery cells are placed in the heat exchange space of the heat exchange device. The first heat exchanger and the second heat exchanger simultaneously dissipate heat from both sides of the battery cells, which increases the heat dissipation efficiency and allows the temperature of the battery cells to be effectively controlled during high-power charging, preventing the battery cells from overheating.
[0016] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.
[0019] Figure 1 This is a schematic diagram of a heat exchange device in one embodiment of this application; Figure 2 This is a schematic diagram of a heat exchange component in one embodiment of this application; Figure 3 This is a schematic diagram of a diversion component in one embodiment of this application; Figure 4 yes Figure 3 A magnified view of a portion of the image; Figure 5 This is a cross-sectional schematic diagram of a diverter in one embodiment of this application; Figure 6 This is a cross-sectional schematic diagram of the current collector in one embodiment of this application; Figure 7 This is a schematic diagram of a battery pack in one embodiment of this application; Figure 8 yes Figure 7 A magnified view of a portion of the image; Figure 9 This is a schematic diagram of the second insulating member in one embodiment of this application; Figure 10 This is a schematic diagram of the third insulating element in one embodiment of this application.
[0020] Explanation of reference numerals in the attached figures: 1. Heat exchange assembly; 11. First heat exchange element; 111. First flow channel; 12. Second heat exchange element; 121. Second flow channel; 13. Heat exchange space; 2. Diverter; 21. Diverter cavity; 211. First inner cavity; 212. Second inner cavity; 22. Liquid inlet; 23. First diverter section; 24. Second diverter section; 25. First limiting section; 3. Flow collector; 31. Flow collector cavity; 311. Third inner cavity; 312. Fourth inner cavity; 32. Liquid outlet; 33. First flow collector section; 34. Second flow collector section; 35. Second limiting section; 41. Battery cell; 42. Inlet pipe; 421. Diverter pipe; 43. Outlet pipe; 431. Collector pipe; 44. First insulating component; 45. Second insulating component; 451. Clearance notch; 46. Third insulating component; 461. First end plate; 462. Second end plate; 47. Crossbeam; X, first direction; Y, second direction; Z, third direction. Detailed Implementation
[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.
[0022] In related fields, battery cells generate a significant amount of heat during high-power charging of battery packs. Taking commonly used lithium-ion cells as an example, high temperatures accelerate chemical instability, increase the risk of overheating, and reduce battery safety. For instance, research shows that as the temperature rises from 25°C to 55°C, after 4.22 cycles, the decay rate of maximum charge storage increases from 13.24% to 260%. High temperatures also cause electrolyte decomposition, generating gas and increasing internal pressure, thereby damaging the battery's internal structure and reducing its ability to efficiently store and deliver energy. To extend cell life and ensure cell safety, rapid cooling of the cells is necessary during high-power charging of the battery pack to prevent overheating. Current technologies typically only use a cooling plate on the bottom of the cell for heat dissipation. For high-power charging, this is insufficient for rapid cooling and fails to meet the thermal management requirements of 4C and 5C supercharging.
[0023] According to a first aspect of this application, a heat exchange device is provided; please refer to... Figure 1 The heat exchange device includes a heat exchange component 1, a flow divider 2, and a flow collector 3.
[0024] Please see Figure 2 The heat exchange assembly 1 includes a first heat exchange element 11 extending along a first direction X and a second heat exchange element 12 extending along a third direction Z. The first heat exchange element 11 has a first flow channel 111 extending along a second direction Y, and the second heat exchange element 12 has a second flow channel 121 extending along the second direction Y. The first heat exchange element 11 is connected to one side of the second heat exchange element 12 in the first direction X, and together they form a heat exchange space 13.
[0025] Please see Figure 3The flow divider 2 has a flow divider cavity 21 and a liquid inlet 22. The flow divider 2 is connected to one end of the heat exchange assembly 1 in the second direction Y and covers the first flow channel 111 and the second flow channel 121. The flow divider cavity 21 connects the first flow channel 111, the second flow channel 121 and the liquid inlet 22.
[0026] Please see Figure 6 The collector 3 has a collecting cavity 31 and a liquid outlet 32. The collector 3 is connected to the end of the heat exchange assembly 1 away from the diverter 2 in the second direction Y, and covers the first flow channel 111 and the second flow channel 121. The collecting cavity 31 connects the first flow channel 111, the second flow channel 121 and the liquid outlet 32. The first direction X, the second direction Y and the third direction Z intersect each other, or alternatively, the first direction X, the second direction Y and the third direction Z are perpendicular to each other.
[0027] This application uses a first heat exchanger 11 extending along the first direction X and a second heat exchanger 12 extending along the third direction Z to form a heat exchange space 13 that can simultaneously exchange heat on both sides of the battery cell 41. One heat dissipation surface can correspond to the bottom surface of the battery cell 41, and the other heat dissipation surface can correspond to the larger side surface of the battery cell 41. By increasing the contact area between the heat exchange device and the battery cell 41, the heat dissipation efficiency can be effectively increased, so that the temperature of the battery cell 41 can be effectively controlled during high-power charging, preventing the temperature of the battery cell 41 from becoming too high, increasing the safety of the battery cell 41, and extending the service life of the battery cell 41.
[0028] Please see Figure 3 In some embodiments, the flow divider 2 includes a first flow divider 23 and a second flow divider 24. The first flow divider 23 covers the first flow channel 111, and the second flow divider 24 covers the second flow channel 121, so that the first flow channel 111 and the second flow channel 121 can be effectively sealed on the side corresponding to the flow divider 2 to prevent coolant leakage. The inlet 22 is disposed on the second flow divider 24 and extends along the first direction X toward one side of the first flow divider 23, so that the position of the inlet 22 is close to the position of the first flow divider 23, reducing the space occupied in the battery pack and facilitating the optimization of the battery pack structure.
[0029] Please see Figure 6 The current collector 3 includes a first current collector 33 and a second current collector 34. The first current collector 33 covers the first flow channel 111, and the second current collector 34 covers the second flow channel 121, so that the first flow channel 111 and the second flow channel 121 can be effectively sealed on the side of the current collector 3 to prevent coolant leakage. The outlet 32 is provided on the second current collector 34 and extends along the first direction X towards one side of the first current collector 33, so that the position of the outlet 32 is close to the position of the first current collector 33, reducing the space occupied in the battery pack and facilitating the optimization of the battery pack structure.
[0030] Please see Figure 3In some embodiments, the flow divider 21 includes a first inner cavity 211 and a second inner cavity 212. The first inner cavity 211 is disposed within the first flow divider 23 and communicates with the first flow channel 111. The second inner cavity 212 is disposed within the second flow divider 24 and communicates with the first inner cavity 211 and the second flow channel 121. By providing the first inner cavity 211 corresponding to the first heat sink and the second inner cavity 212 corresponding to the second heat sink, the contour of the flow divider 2 is adapted to the cross-section of the heat exchange assembly 1, thereby reducing the volume occupied within the battery pack.
[0031] Please see Figure 6 The current collection cavity 31 includes a third inner cavity 311 and a fourth inner cavity 312. The third inner cavity 311 is disposed within the first current collection section 33 and communicates with the first flow channel 111. The fourth inner cavity 312 is disposed within the second current collection section 34 and communicates with the third inner cavity 311 and the second flow channel 121. By providing the third inner cavity 311 corresponding to the first heat sink and the fourth inner cavity 312 corresponding to the second heat sink, the contour of the current collection component 3 is adapted to the cross-section of the heat exchange assembly 1, thereby reducing the volume occupied within the battery pack.
[0032] Please see Figure 4 , Figure 5 In some embodiments, the flow divider 2 covers the heat exchange assembly 1. The flow divider 2 includes a first limiting part 25, which is disposed within the flow divider cavity 21 and abuts against the heat exchange assembly 1. This facilitates accurate installation of the flow divider 2 and prevents coolant leakage. Please refer to [link to relevant documentation]. Figure 6 The manifold 3 covers the heat exchange assembly 1. The manifold 3 includes a second limiting part 35, which is disposed in the manifold cavity 31. The second limiting part 35 abuts against the heat exchange assembly 1, so as to accurately install the manifold 3 into place and prevent coolant leakage.
[0033] Please see Figure 2In some embodiments, the first heat exchanger 11 is connected to the middle of the second heat exchanger 12, so that the second heat exchanger 12 and the first heat exchanger 11 form two heat exchange spaces 13. The two heat exchange spaces 13 have the same dimensions in the third direction Z, which facilitates the simultaneous placement of two rows of identical battery cells 41 on one heat exchange device. The bottoms of the two rows of battery cells 41 exchange heat through the second heat exchanger 12, and one of the larger sides of the two rows of battery cells 41 can dissipate heat through the first heat exchanger 11, thereby increasing the utilization efficiency of the heat exchange device and optimizing the structure of the battery pack. Optionally, the dimensions of the heat exchange space 13 in the third direction Z are the same as the dimensions of the battery cell 41 in the third direction Z, so that the bottom of the battery cell 41 can be fully in contact with the second heat exchanger 12, thereby increasing the heat dissipation efficiency. Optionally, the dimensions of the heat exchange space 13 in the first direction X are the same as the dimensions of the battery cell 41 in the first direction X, so that the corresponding side of the battery cell 41 can be fully in contact with the first heat exchanger 11, thereby increasing the heat dissipation efficiency.
[0034] In some other embodiments, the dimensions of the heat exchange spaces 13 in the third direction Z can be different to accommodate different sizes of battery cells 41, but targeted adjustments are required for battery cells 41 of different sizes and parameters.
[0035] In some other embodiments, the first heat exchanger 11 may also be connected to the end of the second heat exchanger 12 to form an L-shaped heat exchange assembly 1, so that one first heat exchanger 11 only exchanges heat for one row of battery cells 41, thereby increasing the heat exchange effect. In some other embodiments, multiple first heat exchangers 11 may be provided and spaced apart on the second heat exchanger 12 to form at least three heat exchange spaces 13, so as to accommodate more rows of battery cells 41.
[0036] Please see Figure 2 In some embodiments, the first flow channel 111 is provided in multiple ways and is spaced apart along the first direction X, and the second flow channel 121 is provided in multiple ways and is spaced apart along the third direction Z, so that the coolant in the first heat exchanger 11 and the second heat exchanger 12 flows more evenly and the heat dissipation effect is increased.
[0037] According to a second aspect of this application, a battery pack is provided; please refer to... Figure 7The system includes the heat exchange device and battery cell 41 described in the above embodiments. For cases requiring standard battery pack components such as a casing, additional components can be added as needed. The battery cell 41 is disposed within the heat exchange space 13 and is thermally connected to the first heat exchange element 11 and the second heat exchange element 12. The heat exchange space 13, formed by the first heat exchange element 11 extending along the first direction X and the second heat exchange element 12 extending along the third direction Z, can simultaneously dissipate heat from both sides of the battery cell 41. One heat dissipation surface corresponds to the bottom surface of the battery cell 41, and the other heat dissipation surface corresponds to the larger side surface of the battery cell 41. By increasing the contact area between the heat exchange device and the battery cell 41, the heat dissipation efficiency can be effectively increased, allowing the temperature of the battery cell 41 to be effectively controlled during high-power charging, preventing the battery cell 41 from overheating, increasing the safety of the battery cell 41, and extending its service life.
[0038] Please see Figure 7 In some embodiments, the heat exchange device has multiple units, spaced apart along a third direction (Z). The battery pack also includes multiple battery cells 41, an inlet pipe 42, and an outlet pipe 43. At least some of the battery cells 41 are spaced apart along a third direction (Z), each battery cell 41 is disposed within a heat exchange space 13 and is thermally connected to the heat exchange device. The inlet pipe 42 includes multiple branch pipes 421, each branch pipe 421 connected to an inlet port 22. The outlet pipe 43 includes multiple manifolds 431, each manifold 431 connected to an outlet port 32.
[0039] For cooling the battery cell 41, the inlet pipe 42 can be connected to the cold end of the heat exchanger device. The heat exchanger is evenly introduced into each heat exchanger device through the distributor pipe 421. After heat exchange, the heat exchanger is discharged to the hot end of the heat exchanger device through the outlet pipe 43 via the collector pipes 431, thus cooling the heat exchanger for recycling. For cases where the battery cell 41 needs to be heated, the inlet pipe 42 can be connected to the hot end of the heat exchanger device. The heat exchanger is evenly introduced into each heat exchanger device through the distributor pipe 421. After heat exchange, the heat exchanger is discharged to the cold end of the heat exchanger device through the outlet pipe 43 via the collector pipes 431, thus heating the heat exchanger for recycling. Alternatively, the outlet pipe 43 can be connected to the hot end of the heat exchanger device. The heat exchanger is evenly introduced into each heat exchanger device through the collector pipes 431. After heat exchange, the heat exchanger is discharged to the cold end of the heat exchanger device through the inlet pipe 42 via the distributor pipes 421, thus heating the heat exchanger for recycling.
[0040] Please see Figure 8In some embodiments, at least two battery cells 41 are spaced apart along the second direction Y within the heat exchange space 13, increasing the number of battery cells 41 in the battery pack and improving the efficiency of the heat exchange device. A first insulating member 44 is provided between adjacent battery cells 41 along the second direction Y to prevent short circuits caused by accidental damage between the battery cells 41. The first insulating member 44 can be made of materials such as epoxy board or aerogel. A second insulating member 45 is provided between adjacent battery cells 41 along the third direction Z to prevent short circuits caused by accidental damage between the battery cells 41.
[0041] Please see Figure 9 In some embodiments, the second insulating member 45 has a clearance notch 451 that penetrates the second insulating member 45 along a third direction Z. The clearance notch 451 is used to allow space for the reversible expansion of the battery cell 41 during charging and discharging, preventing damage caused by the inability of the battery cell 41 to expand. The second insulating member 45 corresponds to the larger side of the battery cell 41. The side with a relatively small dimensional change during the reversible expansion of the battery cell 41 undergoes a larger dimensional change. For the first insulating member 44 corresponding to the smaller side of the battery cell 41, the clearance notch 451 may not be provided. Optionally, the second insulating member 45 is made of an elastic material that can be compressed when the battery cell 41 undergoes reversible expansion to further allow space for the expansion of the battery cell 41. The second insulating member 45 may be made of materials such as MPP (microcellular polypropylene foam).
[0042] Please see Figure 10 In some embodiments, the battery pack also includes a crossbeam 47, specifically located at both ends in the Z-direction of the battery pack, to enhance the strength of the battery pack. A third insulating element 46 is also provided between the corresponding battery cell 41 and the crossbeam 47 to prevent accidental damage to the battery cell 41 from causing a short circuit with the crossbeam 47. The third insulating element 46 may include a first end plate 461 and a second end plate 462, wherein the first end plate 461 contacts the crossbeam 47 on the corresponding side, and the second end plate 462 contacts the battery cell 41. The second end plate 462 may be made of an elastic material to accommodate the reversible expansion of the battery cell 41, such as MPP, and the first end plate 461 may be made of an epoxy board, aerogel, or other materials.
[0043] The battery pack in this application can meet the heat dissipation requirements of 4C and above supercharging, and has low cost, good heat dissipation effect, can effectively isolate the heat spread of the battery cell 41, and has good temperature consistency.
[0044] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0045] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.
[0046] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.
[0047] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.
Claims
1. A heat exchange device, characterized in that, include: A heat exchange assembly (1) includes a first heat exchange element (11) extending along a first direction (X) and a second heat exchange element (12) extending along a third direction (Z). The first heat exchange element (11) has a first flow channel (111) extending along a second direction (Y), and the second heat exchange element (12) has a second flow channel (121) extending along the second direction (Y). The first heat exchange element (11) is connected to one side of the second heat exchange element (12) in the first direction (X) and together with the second heat exchange element (12) form a heat exchange space (13). The flow divider (2) has a flow divider cavity (21) and a liquid inlet (22). The flow divider (2) is connected to one end of the heat exchange assembly (1) in the second direction (Y) and covers the first flow channel (111) and the second flow channel (121). The flow divider cavity (21) connects the first flow channel (111), the second flow channel (121) and the liquid inlet (22). The collector (3) has a collection cavity (31) and a liquid outlet (32). The collector (3) is connected to the end of the heat exchange assembly (1) away from the diverter (2) in the second direction (Y) and covers the first flow channel (111) and the second flow channel (121). The collection cavity (31) connects the first flow channel (111), the second flow channel (121) and the liquid outlet (32). The first direction (X), the second direction (Y) and the third direction (Z) intersect each other.
2. The heat exchange device according to claim 1, characterized in that, The diverter (2) includes a first diverter (23) and a second diverter (24). The first diverter (23) covers the first flow channel (111), and the second diverter (24) covers the second flow channel (121). The inlet (22) is disposed on the second diverter (24) and extends along the first direction (X) toward one side of the first diverter (23). The flow collector (3) includes a first flow collector (33) and a second flow collector (34). The first flow collector (33) covers the first flow channel (111), and the second flow collector (34) covers the second flow channel (121). The liquid outlet (32) is disposed on the second flow collector (34) and extends along the first direction (X) to one side of the first flow collector (33).
3. The heat exchange device according to claim 2, characterized in that, The flow divider (21) includes a first inner cavity (211) and a second inner cavity (212). The first inner cavity (211) is disposed in the first flow divider (23) and communicates with the first flow channel (111). The second inner cavity (212) is disposed in the second flow divider (24) and communicates with the first inner cavity (211) and the second flow channel (121). The flow collecting cavity (31) includes a third inner cavity (311) and a fourth inner cavity (312). The third inner cavity (311) is disposed in the first flow collecting part (33) and communicates with the first flow channel (111). The fourth inner cavity (312) is disposed in the second flow collecting part (34) and communicates with the third inner cavity (311) and the second flow channel (121).
4. The heat exchange device according to claim 1, characterized in that, The flow divider (2) covers the heat exchange assembly (1), and the flow divider (2) includes a first limiting part (25), which is disposed in the flow divider cavity (21) and abuts against the heat exchange assembly (1). The collector (3) covers the heat exchange assembly (1). The collector (3) includes a second limiting part (35), which is disposed in the collector cavity (31) and abuts against the heat exchange assembly (1).
5. The heat exchange device according to claim 1, characterized in that, The second heat exchanger (12) and the first heat exchanger (11) form two heat exchange spaces (13), and the two heat exchange spaces (13) have the same size in the third direction (Z).
6. The heat exchange device according to claim 1, characterized in that, The first flow channel (111) is provided in multiple ways and is spaced apart along the first direction (X); the second flow channel (121) is provided in multiple ways and is spaced apart along the third direction (Z).
7. A battery pack, characterized in that, The device includes a heat exchanger and a battery cell (41) as described in any one of claims 1 to 6, wherein the battery cell (41) is disposed within the heat exchange space (13).
8. The battery pack according to claim 7, characterized in that, The heat exchange device is of multiple types and is arranged at intervals along the third direction (Z); The battery pack also includes: A plurality of said battery cells (41), at least some of said battery cells (41) are spaced apart along said third direction (Z), each said battery cell (41) is disposed in one of said heat exchange spaces (13) and is thermally connected to said heat exchange device; The inlet pipe (42) includes a plurality of branch pipes (421), each of which is connected to an inlet (22); The liquid outlet pipe (43) includes a plurality of manifolds (431), each of which is connected to a liquid outlet (32).
9. The battery pack according to claim 8, characterized in that, At least two of the battery cells (41) are spaced apart in the heat exchange space (13) along the second direction (Y), and a first insulating member (44) is provided between adjacent battery cells (41) along the second direction (Y); a second insulating member (45) is provided between adjacent battery cells (41) along the third direction (Z).
10. The battery pack according to claim 9, characterized in that, The second insulating member (45) has a clearance notch (451) that penetrates the second insulating member (45) along the third direction (Z).