Heat exchange plate and battery pack and vehicle with same

Abstract

The application discloses a heat exchange plate and a battery pack and a vehicle with the same, and the heat exchange plate comprises a first heat exchange pipe, a plurality of heat exchange flow channels are arranged in the first heat exchange pipe, the heat exchange flow channels extend along a first direction, and a flow converging cavity is arranged in the first heat exchange pipe and located between an inlet end and a flow converging end of the heat exchange flow channels. According to the heat exchange plate provided in the embodiment of the application, the flow converging cavity communicated with the plurality of heat exchange flow channels can balance the temperature of the heat exchange medium in the plurality of heat exchange flow channels, strengthen the heat exchange effect of the heat exchange plate, improve the heat exchange efficiency of the heat exchange plate, and reduce the flow resistance of the heat exchange medium.

Description

Technical Field

[0001] This invention relates to the field of battery technology, and more specifically, to a heat exchange plate and a battery pack and vehicle having the same. Background Technology

[0002] Existing technologies generally improve the heat exchange efficiency of a heat exchange plate to a single cell by increasing the heat exchange area between the heat exchange plate and the single cell. However, when the heat generated by the single cell is high, the heat exchange plate cannot meet the cooling requirements of the single cell. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a heat exchange plate that, by setting a confluence cavity communicating with multiple heat exchange channels, can balance the temperature of the heat exchange medium in multiple heat exchange channels, enhance the heat exchange effect of the heat exchange plate, improve the heat exchange efficiency of the heat exchange plate, and reduce the flow resistance of the heat exchange medium.

[0004] The present invention also proposes a battery pack and a vehicle having the heat exchange plate.

[0005] According to a first aspect of the present invention, a heat exchange plate includes: a first heat exchange tube, wherein the first heat exchange tube is provided with a plurality of heat exchange channels extending along a first direction, and the first heat exchange tube is provided with a confluence cavity located between the inlet end and the confluence end of the heat exchange channels.

[0006] According to embodiments of the present invention, the heat exchange plate, by providing a confluence cavity communicating with multiple heat exchange channels, can balance the temperature of the heat exchange medium in multiple heat exchange channels, enhance the heat exchange effect of the heat exchange plate, improve the heat exchange efficiency of the heat exchange plate, and reduce the flow resistance of the heat exchange medium.

[0007] In addition, the heat exchange plate according to the above embodiments of the present invention may also have the following additional technical features:

[0008] According to some embodiments of the present invention, at least a portion of the heat exchange channel is cut off to form a break to define the manifold.

[0009] According to some embodiments of the present invention, there are multiple manifolds, and the multiple manifolds corresponding to the first heat exchange tube are spaced apart along the first direction.

[0010] According to some embodiments of the present invention, there are multiple first heat exchange tubes, and the multiple first heat exchange tubes are arranged along a second direction, wherein the first direction is perpendicular to the second direction.

[0011] In some embodiments, the heat exchange plate further includes a plurality of second heat exchange tubes, which are arranged along a second direction.

[0012] In some embodiments, the heat exchange plate further includes: a diverter pipe, which is connected to the inlet ends of a plurality of first heat exchange tubes; a manifold pipe, which is connected to the confluence ends of a plurality of first heat exchange tubes; and the manifold pipe is connected to the inlet ends of a second heat exchange tube.

[0013] In some embodiments, the heat exchange plate further includes: a liquid outlet pipe disposed on one side of the inlet end of the first heat exchange tube, the liquid outlet pipe being connected to the outlet ends of the plurality of second heat exchange tubes, and the liquid outlet pipe having a liquid outlet.

[0014] According to a second aspect of the present invention, a battery pack is provided, the battery pack including a battery group including a plurality of individual cells; and a heat exchange plate according to a first aspect of the present invention, the heat exchange plate exchanging heat with the plurality of individual cells.

[0015] According to an embodiment of the present invention, the battery pack can cool or heat individual cells by utilizing the heat exchange plate described in the first aspect of the present invention, thereby facilitating the improvement of the charging and discharging efficiency of the battery pack.

[0016] According to some embodiments of the present invention, the plurality of individual cells are arranged along the first direction, and the heat exchange plate is located on one side of the plurality of individual cells along a third direction, which is perpendicular to the first direction.

[0017] According to some embodiments of the present invention, the battery pack further includes a heat exchanger plate, which is located between the battery pack and the heat exchange plate in the third direction.

[0018] In some embodiments, the battery pack further includes a thermally conductive structure located between the heat spreader and the plurality of individual cells.

[0019] In some embodiments, the temperature distribution plate is provided with a capillary liquid absorption structure.

[0020] According to some embodiments of the present invention, in the third direction, the battery pack is provided on both opposite sides of the heat exchange plate.

[0021] According to a third aspect of the present invention, a vehicle is provided, wherein the vehicle has a battery pack according to an embodiment of a second aspect of the present invention.

[0022] The battery pack according to an embodiment of the present invention facilitates improved charging and discharging efficiency of the vehicle by utilizing the battery pack described in the second aspect of the present invention.

[0023] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0025] Figure 1 This is a schematic diagram of the structure of a heat exchange plate according to an embodiment of the present invention.

[0026] Figure 2 yes Figure 1 Sectional view at point AA.

[0027] Figure 3 This is a cross-sectional view of the heat exchange plate according to an embodiment of the present invention.

[0028] Figure 4 This is a schematic diagram of the structure of a battery pack according to an embodiment of the present invention.

[0029] Figure 5 This is a cross-sectional view of the heat spreader according to an embodiment of the present invention.

[0030] Figure label: Heat exchange plate 1,

[0031] First heat exchange tube 10, heat exchange channel 11, manifold 12, inlet end 13, manifold end 14

[0032] Diverter pipe 21, inlet 211, manifold pipe 22, outlet pipe 23, outlet 231, second heat exchanger pipe 24, inlet end 241, outlet end 242.

[0033] Battery pack 3, battery group 30, individual battery 31.

[0034] Temperature distribution plate 40, capillary liquid absorption structure 411,

[0035] Thermally conductive structure 50. Detailed Implementation

[0036] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] The heat exchange plate 1 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0038] like Figures 1-3 As shown, the heat exchange plate 1 according to an embodiment of the present invention includes a first heat exchange tube 10.

[0039] The heat exchange medium can flow along the first heat exchange tube 10. When the heat exchange medium flows in the first heat exchange tube 10, the heat exchange medium can exchange heat with external components through the tube wall of the first heat exchange tube 10, thereby achieving cooling or heating of the external components.

[0040] Each first heat exchange tube 10 is provided with multiple heat exchange channels 11, which extend along a first direction. The heat exchange medium flows along the first direction within the multiple heat exchange channels 11 to increase the contact area between the heat exchange medium and the first heat exchange tube 10, thereby improving the heat exchange efficiency of the heat exchange medium and thus improving the heat exchange efficiency of the first heat exchange tube 10.

[0041] The first heat exchange tube 10 is provided with a manifold 12, which is located between the inlet end 13 and the manifold end 14 of the heat exchange channel 11, so that the heat exchange channel 11 and the manifold 12 are connected, and the heat exchange medium in the multiple heat exchange channels 11 can be mixed in the manifold 12, so that the heat exchange medium in different heat exchange channels 11 can exchange heat in the manifold 12, thereby balancing the heat of the heat exchange medium in different heat exchange channels 11.

[0042] Specifically, the heat exchange medium in the multiple heat exchange channels 11 can enter the manifold 12 from one end of the manifold 12 along the heat exchange channels 11. The heat exchange medium mixes and undergoes heat exchange in the manifold 12. Then, the heat exchange medium enters the heat exchange channel 11 from the other end of the manifold 12. When flowing in the heat exchange channel 11, it can exchange heat with external components through the pipe wall of the first heat exchange tube 10, thereby achieving cooling or heating of the external components. This facilitates the enhancement of the heat exchange effect of the heat exchange medium in the heat exchange channels 11 and avoids the temperature of the heat exchange medium in some heat exchange channels 11 being too high or too low.

[0043] In addition, by setting the manifold 12, the flow resistance of the heat exchange medium in the first heat exchange tube 10 can be reduced, so that the heat exchange medium can flow smoothly in the heat exchange channel 11 and the first heat exchange tube 10, thereby ensuring that the heat exchange medium can smoothly exchange heat with external components, so as to cool or heat the external components.

[0044] In some embodiments, the heat exchange medium is in a liquid state before entering the first heat exchange tube 10. When the heat exchange medium flows in the heat exchange channel 11, it absorbs the heat generated by external components. A portion of the heat exchange medium becomes gaseous after absorbing heat. At this time, the heat exchange medium in the heat exchange channel 11 is in a gas-liquid two-phase state. When the heat exchange medium in multiple heat exchange channels 11 flows to the manifold 12, the heat exchange medium in the gas-liquid two-phase state can exchange heat at the manifold 12 to balance the heat exchange medium in multiple heat exchange channels 11, avoid the temperature of some heat exchange medium in the heat exchange channels 11 from being too high, and facilitate the enhancement of the heat exchange effect of the heat exchange medium in the heat exchange channels 11, thereby improving the heat exchange efficiency of the heat exchange plate 1 and improving the heat exchange effect of the heat exchange plate 1.

[0045] According to the embodiment of the present invention, the heat exchange plate 1 is provided in the first heat exchange tube 10, so that the heat exchange channels 11 are connected to the heat exchange cavity 12. The working fluid in the multiple heat exchange channels 11 can exchange heat in the heat exchange cavity 12 to balance the temperature of the heat exchange medium in the multiple heat exchange channels 11, thereby facilitating the improvement of the heat exchange efficiency of the heat exchange medium, so as to quickly cool or heat external components.

[0046] Therefore, according to the embodiments of the present invention, by providing a confluence cavity 12 that communicates with multiple heat exchange channels 11, the heat exchange plate 1 can balance the temperature of the heat exchange medium in the multiple heat exchange channels 11, enhance the heat exchange effect of the heat exchange plate 1, improve the heat exchange efficiency of the heat exchange plate 1, and reduce the flow resistance of the heat exchange medium.

[0047] The heat exchange plate 1 according to a specific embodiment of the present invention is described below with reference to the accompanying drawings.

[0048] like Figures 1-3 As shown, the heat exchange plate 1 according to an embodiment of the present invention includes a first heat exchange tube 10.

[0049] In some embodiments of the present invention, at least a portion of the heat exchange channel 11 is cut off to form a break to define a manifold 12, so that the manifold 12 can connect to at least a portion of the heat exchange channel 11, thereby allowing the heat exchange medium in the heat exchange channel 11 to mix and exchange heat in the manifold 12.

[0050] In some embodiments, such as Figure 3 As shown, the heat exchange channel 11 in the middle part of the first heat exchange tube 10 is cut to form two breaks, so that the heat exchange medium in the heat exchange channel 11 can enter the manifold 12 from one break, where it converges and undergoes heat exchange. Then, the heat exchange medium in the manifold 12 flows into the heat exchange channel 11 from the other break, so that the heat exchange medium can achieve heat exchange with the external components by utilizing the flow of the heat exchange medium in the heat exchange channel 11, thereby cooling or heating the external components.

[0051] In some embodiments of the present invention, the heat exchange plate 1 has a plurality of manifolds 12, and the plurality of manifolds 12 corresponding to the first heat exchange tube 10 are spaced apart along a first direction. By providing a plurality of manifolds 12 in the first heat exchange tube 10, the heat exchange medium in the heat exchange channel 11 can be combined in multiple manifolds 12 when flowing along the first heat exchange tube 10, so that the heat exchange medium can exchange heat in the manifolds 12 to balance the heat of the heat exchange medium in the heat exchange channel 11.

[0052] In some embodiments, the first heat exchange tube 10 and the heat exchange channel 11 extend along a first direction. A plurality of confluence cavities 12 are provided in the first heat exchange tube 10 and spaced apart along the first direction. This allows the heat exchange medium in the first heat exchange tube 10 to undergo multiple confluences and heat exchange when the heat exchange medium flows in the first direction within the first heat exchange tube 10, thus avoiding a large temperature difference in the heat exchange medium along the length of the first heat exchange tube 10 and preventing any impact on the heat exchange efficiency of the first heat exchange tube 10. This, in turn, facilitates the improvement of the heat exchange efficiency of the heat exchange plate 1.

[0053] In some embodiments of the present invention, the heat exchange plate 1 includes a plurality of first heat exchange tubes 10, which are arranged along a second direction. The first direction and the second direction are perpendicular to each other, so as to increase the surface area of ​​the heat exchange plate 1 and enable the heat exchange plate 1 to cover external components. When the heat exchange medium flows in the first heat exchange tubes 10, the heat exchange plate 1 can be used to fully cool or heat the external components.

[0054] In some embodiments of the present invention, the heat exchange plate 1 further includes a plurality of second heat exchange tubes 24, which are arranged along a second direction. Optionally, the number of second heat exchange tubes 24 is the same as the number of first heat exchange tubes 10, and they are arranged in pairs, with the first heat exchange tube 10 and its corresponding second heat exchange tube 24 positioned adjacent to each other. According to the liquid flow direction, the end of the second heat exchange tube 24 where the liquid flows in is the inlet end 241, and the end where the liquid flows out is the outlet end 242.

[0055] In some optional embodiments of the present invention, the heat exchange plate 1 further includes a diversion pipe 21 and a manifold 22. The diversion pipe 21 is connected to the inlet ends 13 of a plurality of first heat exchange pipes 10 to divert the heat exchange medium in the diversion pipe 21 to the first heat exchange pipes 10. The manifold 22 is connected to the confluence ends of a plurality of first heat exchange pipes 10, and the heat exchange medium in the first heat exchange pipes 10 can flow along the first heat exchange pipes 10 to the manifold 22. The inlet ends 241 of a plurality of second heat exchange pipes 24 are respectively connected to the manifold 22, and the heat exchange medium flowing from the first heat exchange pipes 10 to the manifold 22 can be diverted in the manifold 22 to the second heat exchange pipes 24 to realize the flow of the heat exchange medium in the first heat exchange pipes 10 and the second heat exchange pipes 24, thereby using the heat exchange medium to cool or heat external components.

[0056] In some specific embodiments of the present invention, the heat exchange plate 1 further includes a liquid outlet pipe 23, which is disposed on one side of the inlet end 13 of the first heat exchange tube 10. The liquid outlet pipe 23 is connected to the outlet end 242 of a plurality of second heat exchange tubes 24, and the liquid outlet pipe 23 is provided with a liquid outlet 231.

[0057] The heat exchange medium can flow along the branch pipe 21 into the first heat exchange pipe 10, flow along the first heat exchange pipe 10 into the manifold 22, flow from the manifold 22 into the second heat exchange pipe 24, flow along the second heat exchange pipe 24 into the liquid outlet pipe 23, and flow out of the heat exchange plate 1 from the liquid outlet 231, so as to realize the flow of the heat exchange medium in the heat exchange plate 1, thereby enabling the heat exchange medium to exchange heat with external components to cool or heat the external components.

[0058] By setting up a diversion pipe 21, a manifold pipe 22, and an outlet pipe 23, the heat exchange medium flows in a certain direction in multiple first heat exchange pipes 10, and the heat exchange medium in multiple second heat exchange pipes 24 flows in different directions. This facilitates balancing the temperature difference on the heat exchange plate 1 and prevents the temperature at one end of the heat exchange plate 1 from being too high or too low, so that the heat exchange plate 1 can have better heat exchange efficiency.

[0059] like Figure 1 As shown, in this embodiment, the first direction extends along the left-right direction, the second direction extends along the front-back direction, and the first heat exchange tube 10 and the second heat exchange tube 24 extend along the left-right direction. It should be understood that the above-mentioned direction limitation is only for the convenience of describing the drawings and does not limit the actual setting position and direction of the heat exchange plate 1.

[0060] The heat exchange plate 1 includes four first heat exchange tubes 10 and four second heat exchange tubes 24. The first heat exchange tubes 10 include a first pipe, a fourth pipe, a fifth pipe and an eighth pipe. The second heat exchange tubes 24 include a second pipe, a third pipe, a sixth pipe and a seventh pipe. The first pipe, the second pipe, the third pipe, the fourth pipe, the fifth pipe, the sixth pipe, the seventh pipe and the eighth pipe are arranged sequentially from front to back.

[0061] The diversion pipe 21 includes an inlet 211, a first pipe, a fourth pipe, a fifth pipe, and an eighth pipe. The inlet 211 is connected to the first pipe, the fourth pipe, the fifth pipe, and the eighth pipe. The first pipe is connected to the inlet end 13 of the first pipe, the fourth pipe is connected to the inlet end 13 of the fourth pipe, the fifth pipe is connected to the inlet end 13 of the fifth pipe, and the eighth pipe is connected to the inlet end 13 of the eighth pipe.

[0062] The liquid outlet pipe 23 includes a liquid outlet 231, a second pipe, a third pipe, a sixth pipe, and a seventh pipe. The liquid outlet 231 is connected to the second pipe, the third pipe, the sixth pipe, and the seventh pipe. The second pipe is connected to the outlet end 242 of the second pipe, the third pipe is connected to the outlet end 242 of the third pipe, the sixth pipe is connected to the outlet end 242 of the sixth pipe, and the seventh pipe is connected to the outlet end 242 of the seventh pipe.

[0063] The manifold 22 extends in the front-to-back direction and has eight ports. These eight ports are, from front to back, the first port, the second port, the third port, the fourth port, the fifth port, the sixth port, the seventh port, and the eighth port. The first port is connected to the manifold end 14 of the first pipe, the second port is connected to the inlet end 241 of the second pipe, the third port is connected to the inlet end 241 of the third pipe, the fourth port is connected to the manifold end 14 of the fourth pipe, the fifth port is connected to the manifold end 14 of the fifth pipe, the sixth port is connected to the inlet end 241 of the sixth pipe, the seventh port is connected to the inlet end 241 of the seventh pipe, and the eighth port is connected to the manifold end 14 of the eighth pipe.

[0064] The heat exchange medium enters the branch pipe 21 from the inlet 211 and flows along the branch pipe 21 to the first pipe, the fourth pipe, the fifth pipe and the eighth pipe. The heat exchange medium in the first pipe flows from the inlet end 13 into the first pipe and flows from the first port to the manifold 22 in a right-to-left direction. The heat exchange medium in the fourth pipe flows from the inlet end 13 into the fourth pipe and flows from the fourth port to the manifold 22 in a right-to-left direction. The heat exchange medium in the fifth pipe flows from the inlet end 13 into the fifth pipe and flows from the fifth port to the manifold 22 in a right-to-left direction. The heat exchange medium in the eighth pipe flows from the inlet end 13 into the eighth pipe and flows from the eighth port to the manifold 22 in a right-to-left direction.

[0065] The heat exchange medium in the manifold 22 flows from the second port into the second pipe, flows from the outlet end 242 into the second pipeline along the left-to-right direction, and flows out from the outlet 231 along the second pipeline; the heat exchange medium in the manifold 22 flows from the third port into the third pipe, flows from the outlet end 242 into the third pipeline along the left-to-right direction, and flows out from the outlet 231 along the third pipeline; the heat exchange medium in the manifold 22 flows from the sixth port into the sixth pipe, flows from the outlet end 242 into the sixth pipeline along the left-to-right direction, and flows out from the outlet 231 along the sixth pipeline; the heat exchange medium in the manifold 22 flows from the seventh port into the seventh pipe, flows from the outlet end 242 into the seventh pipeline along the left-to-right direction, and flows out from the outlet 231 along the seventh pipeline.

[0066] By setting up a diversion pipe 21, a manifold pipe 22, and an outlet pipe 23, the heat exchange medium in the diversion pipe 21 can flow to the first pipe, the fourth pipe, the fifth pipe, and the eighth pipe at the same time, and the heat exchange medium in the manifold pipe 22 can flow to the second pipe, the third pipe, the sixth pipe, and the seventh pipe simultaneously. On the one hand, this helps to reduce the flow time of the heat exchange medium in the first heat exchange pipe 10 and the second heat exchange pipe 24, thereby improving the heat exchange efficiency of the heat exchange medium. On the other hand, it allows the flow direction of the heat exchange medium in the first heat exchange pipe 10 and the second heat exchange pipe 24 to be different, so as to balance the heat of the heat exchange plate 1 and avoid the local temperature of the heat exchange plate 1 being too high, which would affect the heat exchange efficiency of the heat exchange plate 1.

[0067] The battery pack 3 according to an embodiment of the present invention is described below. The battery pack 3 according to an embodiment of the present invention includes a battery pack 30 and a heat exchange plate 1 according to the above embodiment of the present invention.

[0068] The battery pack 30 includes multiple individual cells 31. The heat exchange plate 1 exchanges heat with the multiple individual cells 31 to cool or heat the multiple individual cells 31, thereby enabling the individual cells 31 to operate at a suitable temperature and improve the charging and discharging efficiency of the individual cells 31.

[0069] According to an embodiment of the present invention, the battery pack 3 can cool or heat the individual battery cells 31 by utilizing the heat exchange plate 1 according to the above embodiment of the present invention, which facilitates the improvement of the charging and discharging efficiency of the battery pack 3.

[0070] In some embodiments of the present invention, such as Figure 4 As shown, multiple individual cells 31 are arranged along a first direction, and a heat exchange plate 1 is located on one side of the multiple individual cells 31 along a third direction. The first direction and the second direction are perpendicular to each other, and the third direction is perpendicular to the first direction and the second direction, so that the heat exchange plate 1 can cover the multiple individual cells 31, thereby cooling the multiple individual cells 31 using the heat exchange plate 1.

[0071] The first heat exchange tube 10 extends along the first direction, and multiple individual cells 31 are arranged along the first direction. The multiple first heat exchange tubes 10 are arranged along the second direction, and the individual cells 31 extend along the second direction, so as to use the heat exchange plate 1 to equalize the temperature of multiple individual cells 31 and avoid the temperature of some individual cells 31 in the battery pack 30 being too high.

[0072] In some embodiments of the present invention, the battery pack 3 further includes a heat spreader 40, which is located between the battery pack 30 and the heat exchange plate 1 in the third direction, so that the heat spreader 40 and the heat exchange plate 1 can cover the battery pack 30, thereby uniformly cooling or heating the battery pack 30.

[0073] In some embodiments, the single cell 31 has a first electrode and a second electrode, which are located at both ends of the single cell 31 along its length. The heat spreader 40 extends along the direction from the first electrode to the second electrode, that is, the heat spreader 40 extends along the length of the single cell 31. When the single cell 31 is being charged or discharged, the temperature difference along the length of the single cell 31 is large. Specifically, the temperature in the middle part of the single cell 31 is low and the temperature at both ends is high. The large temperature difference will limit the charging and discharging power of the single cell 31. The heat spreader 40 can balance the temperature difference along the length of the single cell 31 to improve the charging and discharging performance of the single cell 31.

[0074] In some optional embodiments of the present invention, the heat exchange plate 40 is located between the heat exchange plate 1 and the plurality of individual cells 31 to equalize the temperature of the plurality of individual cells 31. Specifically, the heat generated by the individual cells 31 can be transferred to the heat exchange plate 1 through the heat exchange plate 40. When the heat exchange medium flows in the heat exchange plate 1, the heat exchange medium can absorb the heat on the heat exchange plate 40, thereby achieving the purpose of cooling the individual cells 31.

[0075] Of course, when the heat exchange medium flows within the heat exchange plate 1, the heat within the heat exchange medium can first be transferred to the heat distribution plate 40, and after the heat is evenly distributed by the heat distribution plate 40, it can be transferred to the multiple individual cells 31 to heat the multiple individual cells 31 at a uniform temperature.

[0076] In some embodiments, the heat exchange plate 1 and the heat spreader 40 are brazed together to prevent the position of the heat exchange plate 1 and the heat spreader 40 from shifting when the battery pack 3 is moved.

[0077] In some optional embodiments of the present invention, the battery pack 3 further includes a heat-conducting structure 50, which is located between the heat spreader 40 and the plurality of individual cells 31. On the one hand, the heat generated by the battery pack 30 is transferred to the heat spreader 40 through the heat-conducting structure 50, and the heat spreader 40 is used to even out the temperature of the plurality of battery packs 30. On the other hand, the heat-conducting structure 50 can connect the plurality of individual cells 31 to the heat spreader 40 together.

[0078] In some embodiments, the thermally conductive structure 50 is a thermally conductive adhesive to bond multiple individual battery cells 31 together with the heat spreader 40.

[0079] In some optional embodiments of the present invention, the temperature distribution plate 40 is provided with a capillary liquid absorption structure 411 to realize the flow of the working fluid in the temperature distribution plate 40, and then to realize the temperature distribution of the battery pack 30 by utilizing the flow of the working fluid in the temperature distribution plate 40.

[0080] Specifically, a typical heat spreader 40 utilizes gravity to allow the working fluid within it to flow vertically, thereby balancing the temperature difference in the vertical direction of the individual cells 31. By incorporating a capillary liquid absorption structure 411, horizontal reflux of the working fluid can be achieved through capillary liquid absorption, adapting to the needs of the heat spreader 40 under different conditions.

[0081] In some embodiments of the present invention, in the third direction, battery packs 30 are provided on opposite sides of the heat exchange plate 1 so as to cool or heat the two battery packs 30 by means of the heat exchange plate 1, which facilitates the reduction of the arrangement of components and reduces the cost of the battery pack 3.

[0082] The vehicle according to an embodiment of the present invention is described below. The vehicle according to an embodiment of the present invention includes a battery pack 30 and a battery pack 3 according to the above embodiment of the present invention.

[0083] The vehicle according to an embodiment of the present invention, by utilizing the battery pack 3 according to the above embodiment of the present invention, facilitates the improvement of the vehicle's charging and discharging efficiency.

[0084] Other configurations and operations of the battery pack 3 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0085] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. In the description of this invention, "above" or "below" a second feature may include direct contact between the first and second features, or it may include contact between the first and second features not being in direct contact but through another feature between them.

[0086] In the description of this invention, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature.

[0087] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0088] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0089] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A heat exchange plate (1), characterized in that, include: The first heat exchange tube (10) is provided with a plurality of heat exchange channels (11) inside the first heat exchange tube (10). The heat exchange channels (11) extend along a first direction. The first heat exchange tube (10) is provided with a manifold (12). The manifold (12) is located between the inlet end (13) and the manifold end (14) of the heat exchange channels (11). Multiple second heat exchange tubes (24) are arranged along a second direction; The branch pipe (21) is connected to the inlet end (13) of the plurality of first heat exchange tubes (10); The manifold (22) is connected to the manifold ends (14) of the plurality of first heat exchange tubes (10); and the manifold (22) is connected to the inlet end (241) of the second heat exchange tube (24).

2. The heat exchange plate (1) according to claim 1, characterized in that, At least a portion of the heat exchange channel (11) is cut off to form a break to define the manifold (12).

3. The heat exchange plate (1) according to claim 1, characterized in that, There are multiple manifolds (12), and the multiple manifolds (12) corresponding to the first heat exchange tube (10) are spaced apart along the first direction.

4. The heat exchange plate (1) according to any one of claims 1-3, characterized in that, There are multiple first heat exchange tubes (10), and the multiple first heat exchange tubes (10) are arranged along the second direction, which is perpendicular to the second direction.

5. The heat exchange plate (1) according to claim 1, characterized in that, It also includes a liquid outlet pipe (23), which is located on one side of the inlet end (13) of the first heat exchange tube (10). The liquid outlet pipe (23) is connected to the outlet end (242) of the plurality of second heat exchange tubes (24), and the liquid outlet pipe (23) is provided with a liquid outlet (231).

6. A battery pack (3), characterized in that, include: The battery pack (30) includes multiple individual cells (31). Heat exchange plate (1), the heat exchange plate (1) is the heat exchange plate (1) according to any one of claims 1-5, the heat exchange plate (1) exchanges heat with the plurality of single cells (31).

7. The battery pack (3) according to claim 6, characterized in that, The plurality of individual cells (31) are arranged along the first direction, and the heat exchange plate (1) is located on one side of the plurality of individual cells (31) along a third direction, which is perpendicular to the first direction.

8. The battery pack (3) according to claim 7, characterized in that, It also includes a heat spreader (40), which is located between the battery pack (30) and the heat exchange plate (1) in the third direction.

9. The battery pack (3) according to claim 8, characterized in that, It also includes a thermally conductive structure (50) located between the heat spreader (40) and the plurality of individual cells (31).

10. The battery pack (3) according to claim 8, characterized in that, The temperature distribution plate (40) is provided with a capillary liquid absorption structure (411).

11. The battery pack (3) according to claim 7, characterized in that, In the third direction, the battery pack (30) is provided on both opposite sides of the heat exchange plate (1).

12. A vehicle, characterized in that, Includes the battery pack (3) according to any one of claims 6-11.

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