Heat exchange assembly and battery

Abstract

The utility model discloses a heat exchange assembly and a battery, and belongs to the technical field of batteries. The heat exchange assembly comprises a first heat exchange plate and a second heat exchange plate which are arranged in the first direction, the first heat exchange plate is provided with a plurality of first flow channels extending in the second direction, the second heat exchange plate is provided with a plurality of second flow channels extending in the second direction, and the first flow channels and the second flow channels are connected in parallel in the first direction. The liquid inlet and the liquid outlet are formed in the sides, close to each other, of the first heat exchange plate and the second heat exchange plate in the first direction, the lengths of the at least two first flow channels are different, and the lengths of the at least two second flow channels are different; the confluence piece is connected with the first heat exchange plate and the second heat exchange plate, and the multiple first flow channels communicate with the multiple second flow channels through the confluence piece. The confluence piece is arranged, and the length of each flow channel is designed, so that even if the liquid inlet and the liquid outlet are arranged in the middle, the flow of cooling liquid in the flow channels of the two heat exchange plates is relatively uniform, and the uniformity of the heat exchange effect of each position of the heat exchange assembly is improved.

Description

Technical Field

[0001] The present application belongs to the field of battery technology, and in particular relates to a heat exchange component and a battery. Background Art

[0002] Battery modules currently on the market often use liquid cooling plates for thermal management due to thermal uniformity considerations. Aluminum profile liquid cooling plates are widely used on battery trays because they can provide structural strength while integrating liquid cooling channels.

[0003] However, due to the limitation of the extrusion process, the flow direction of the current profile cold plate is unidirectional, resulting in a rigid flow channel design. When the left and right sides of the cold plate interfere with each other and the water outlet cannot be arranged, the water inlet and outlet can only be designed near the middle position of the cold plate. At this time, the flow uniformity of the coolant in the flow channel is very poor, affecting the heat exchange effect. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a heat exchange component and a battery, so that when the liquid inlet and the liquid outlet are arranged close to the middle, the flow rate of the coolant in each flow channel in the cold plate is relatively uniform, thereby improving the uniformity of the heat exchange effect of each position of the heat exchange component.

[0005] In a first aspect, the present application provides a heat exchange component, which is applied to a battery. The heat exchange component includes:

[0006] A first heat exchange plate and a second heat exchange plate are arranged along a first direction, the first heat exchange plate is provided with a plurality of first flow channels extending along a second direction, the second heat exchange plate is provided with a plurality of second flow channels extending along the second direction, the plurality of first flow channels and the plurality of second flow channels are connected in parallel along the first direction, the first heat exchange plate and the second heat exchange plate are respectively provided with a liquid inlet and a liquid outlet at the same end in the second direction, the liquid inlet and the liquid outlet are arranged on one side of the first heat exchange plate and the second heat exchange plate close to each other along the first direction, wherein at least two of the first flow channels have different lengths, and at least two of the second flow channels have different lengths;

[0007] A conduit is connected to one end of the first heat exchange plate and the second heat exchange plate along the second direction away from the liquid inlet and the liquid outlet, and the plurality of first flow channels are connected to the plurality of second flow channels through the conduit.

[0008] According to the heat exchange component of the present application, the corresponding resistance is adjusted by designing different flow channel lengths, and the coolant passing through multiple first flow channels is converged through a confluence piece and then distributed to multiple second flow channels in the second heat exchange plate, thereby adjusting the flow rate of the coolant in different flow channels. Even if the liquid inlet and the liquid outlet are arranged close to the middle, the flow rate of the coolant in the flow channels of the first heat exchange plate and the second heat exchange plate is relatively uniform, thereby improving the uniformity of the heat exchange effect of each position of the heat exchange component.

[0009] According to an embodiment of the present application, a first partition and a second partition are respectively provided in the first heat exchange plate and the second heat exchange plate, each of which is spaced apart along the first direction and extends along the second direction;

[0010] The distance from one end of the plurality of first partitions close to the liquid inlet along the second direction to the liquid inlet decreases along a direction away from the second heat exchange plate; and / or,

[0011] The distance from one end of the plurality of second partitions close to the liquid outlet along the second direction to the liquid outlet decreases along a direction away from the first heat exchange plate.

[0012] According to an embodiment of the present application, in at least one group of the plurality of first separators and the plurality of second separators, at least two separators have different distances from the busbar.

[0013] According to one embodiment of the present application, the manifold is provided with a plurality of first through holes corresponding to the first heat exchange plate and a plurality of second through holes corresponding to the second heat exchange plate, the first through holes are connected to the first flow channel, the second through holes are connected to the second flow channel, and the number of the first through holes is different from that of the first flow channel, and the number of the second through holes is different from that of the second flow channel.

[0014] According to an embodiment of the present application, among the plurality of first through holes, at least two pairs of the first through holes have different spacings; and / or,

[0015] Among the plurality of second through holes, at least two pairs of the second through holes have different intervals.

[0016] According to an embodiment of the present application, at least two through holes among the plurality of first through holes and the plurality of second through holes have different apertures in the first direction.

[0017] According to an embodiment of the present application, the number of the first through holes is no more than the number of the second through holes.

[0018] According to one embodiment of the present application, at least two of the plurality of first flow channels have different widths in the first direction; and / or,

[0019] At least two of the plurality of second flow channels have different widths in the first direction.

[0020] According to an embodiment of the present application, among the plurality of first flow channels, the first flow channel located at an end away from the second heat exchange plate has the largest width in the first direction; and / or,

[0021] Among the plurality of second flow channels, the second flow channel located at an end away from the first heat exchange plate has the largest width in the first direction.

[0022] According to an embodiment of the present application, a first mounting portion is provided on the busbar, and the first mounting portion is used to connect to a battery module of the battery.

[0023] According to an embodiment of the present application, the first heat exchange plate is provided with a second mounting portion connected by a bend on a side away from the second heat exchange plate and the second heat exchange plate is provided with a side away from the first heat exchange plate, and the second mounting portion is used to be connected to the battery box.

[0024] In a second aspect, the present application provides a battery, comprising:

[0025] A heat exchange component as described in any technical solution of the first aspect;

[0026] The battery module is installed on the heat exchange component.

[0027] According to the battery of the present application, the battery module is installed on the heat exchange component, and the heat management of the battery module is performed through the heat exchange component. By improving the uniformity of the heat exchange effect of each part of the heat exchange component, the stability of the operation of the battery module is improved, thereby helping to improve the stability and durability of the battery.

[0028] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0030] Figure 1 It is one of the structural schematic diagrams of the heat exchange assembly provided in the embodiment of the present application;

[0031] Figure 2 is a schematic diagram of the exploded structure of the heat exchange assembly provided in an embodiment of the present application;

[0032] Figure 3 This is the second structural schematic diagram of the heat exchange assembly provided in the embodiment of the present application;

[0033] Figure 4 yes Figure 3 Schematic diagram of the cross section at AA in the middle;

[0034] Figure 5 It is a schematic diagram of the structure of the battery provided in the embodiment of the present application.

[0035] Reference numerals:

[0036] Battery 100, battery module 110;

[0037] Heat exchange assembly 200, first heat exchange plate 210, first partition 211, first flow channel 212, liquid inlet 213, first baffle 214, second heat exchange plate 220, second partition 221, second flow channel 222, liquid outlet 223, second baffle 224, cavity 231, second mounting portion 232, confluence piece 240, confluence flow channel 241, first through hole 242, second through hole 243, first mounting portion 244, seal 250, third baffle 260. DETAILED DESCRIPTION

[0038] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0039] Reference below Figure 1-Figure 4 A heat exchange assembly 200 according to an embodiment of the present application is described.

[0040] The heat exchange assembly 200 is applied to the battery 100 , and the heat exchange assembly 200 includes a first heat exchange plate 210 , a second heat exchange plate 220 and a busbar 240 .

[0041] The first heat exchange plate 210 and the second heat exchange plate 220 are arranged along the first direction, the first heat exchange plate 210 is provided with a plurality of first flow channels 212 extending along the second direction, the second heat exchange plate 220 is provided with a plurality of second flow channels 222 extending along the second direction, the plurality of first flow channels 212 and the plurality of second flow channels 222 are connected in parallel along the first direction, the first heat exchange plate 210 and the second heat exchange plate 220 are respectively provided with a liquid inlet 213 and a liquid outlet 223 at the same end in the second direction, and the liquid inlet 213 and the liquid outlet 223 are arranged on one side of the first heat exchange plate 210 and the second heat exchange plate 220 close to each other along the first direction.

[0042] The liquid inlet 213 and the liquid outlet 223 are arranged along the first direction on one side of the first heat exchange plate 210 and the second heat exchange plate 220 close to each other to facilitate connection of the liquid inlet 213 and the liquid outlet 223, thereby facilitating assembly connection in the battery 100.

[0043] The multiple first flow channels 212 in the first heat exchange plate 210 extend along the second direction and are distributed along the first direction, and the multiple first flow channels 212 are arranged in parallel at both ends in the second direction, wherein the first heat exchange plate 210 is respectively formed with cavities 231 at both ends in the second direction, and the two cavities 231 are respectively connected to the two ends of the multiple first flow channels 212 in the second direction, so that the multiple first flow channels 212 are connected in parallel, and the liquid inlet 213 is connected to the cavity 231 close to it, and the coolant enters the cavity 231 through the liquid inlet 213 and is distributed to the multiple first flow channels 212.

[0044] The multiple second flow channels 222 in the second heat exchange plate 220 extend along the second direction and are distributed along the first direction, and the multiple second flow channels 222 are arranged in parallel at both ends in the second direction, wherein the second heat exchange plate 220 is respectively formed with cavities 231 at both ends in the second direction, and the two cavities 231 are respectively connected to the two ends of the multiple second flow channels 222 in the second direction, so that the multiple second flow channels 222 are connected in parallel, and the liquid outlet 223 is connected to the cavity 231 close to it, and the coolant converges into the cavity 231 through the multiple second flow channels 222 and flows out from the liquid outlet 223.

[0045] In this embodiment, at least two first flow channels 212 have different lengths, and at least two second flow channels 222 have different lengths. The lengths of the plurality of first flow channels 212 and the plurality of second flow channels 222 are designed and analyzed according to actual conditions. By adjusting the length of the first flow channel 212, the resistance of the corresponding first flow channel 212 is changed, thereby adjusting the flow rate in different first flow channels 212. By adjusting the length of the second flow channel 222, the resistance of the corresponding second flow channel 222 is changed, thereby adjusting the flow rate in different second flow channels 222.

[0046] It is understandable that the number of first flow channels 212 is not limited herein, and may be two or more. When there are more than two first flow channels 212, illustratively, when there are six first flow channels 212, the lengths of the six first flow channels 212 may all be different, or some of them may have the same length.

[0047] The conduit 240 is connected to one end of the first heat exchange plate 210 and the second heat exchange plate 220 away from the liquid inlet 213 and the liquid outlet 223 along the second direction, and the plurality of first flow channels 212 are connected to the plurality of second flow channels 222 through the conduit 240 .

[0048] The confluence channel 241 may be provided in the confluence member 240, and the confluence channel 241 is connected to the cavity 231 at one end of the first heat exchange plate 210 away from the liquid inlet 213 along the second direction, so that the coolant flows through the plurality of first channels 212 and enters the confluence channel 241 from the cavity 231 to converge, and the coolant in the plurality of first channels 212 is integrated. The confluence channel 241 of the confluence member 240 is also connected to the cavity 231 at one end of the second heat exchange plate 220 away from the liquid outlet 223 along the second direction, so that the coolant can enter the second heat exchange plate 220 after passing through the confluence member 240, and then be distributed to the plurality of second channels 222, so that the flow rate of the coolant in each channel is relatively uniform after the coolant transitions from the first heat exchange plate 210 to the second heat exchange plate 220.

[0049] By designing the flow channel length differently, the corresponding resistance is adjusted, and the coolant passing through the multiple first flow channels 212 is converged through the confluence piece 240 and then distributed to the multiple second flow channels 222 in the second heat exchange plate 220, thereby adjusting the flow rate of the coolant in different flow channels. Even if the liquid inlet 213 and the liquid outlet 223 are arranged close to the middle, the flow rate of the coolant in the flow channels of the first heat exchange plate 210 and the second heat exchange plate 220 is relatively uniform, thereby improving the uniformity of the heat exchange effect of each position of the heat exchange component 200.

[0050] According to some embodiments of the present application, Figure 4 As shown, the first heat exchange plate 210 and the second heat exchange plate 220 may be respectively provided with a first separator 211 and a second separator 221 spaced apart along the first direction and extending along the second direction.

[0051] A plurality of first partitions 211 may be provided in the first heat exchange plate 210, and the plurality of first partitions 211 may be arranged at intervals along the first direction and extend along the second direction. The plurality of first partitions 211 divide the interior of the first heat exchange plate 210 into a plurality of compartments to define a plurality of first flow channels 212. A plurality of second partitions 221 may be provided in the second heat exchange plate 220, and the plurality of second partitions 221 may be arranged at intervals along the first direction and extend along the second direction. The plurality of second partitions 221 divide the interior of the second heat exchange plate 220 into a plurality of compartments to define a plurality of second flow channels 222.

[0052] It should be noted that the first partition 211 is spaced apart from both ends of the first heat exchange plate 210 in the second direction so that cavities 231 are formed at both ends of the first heat exchange plate 210 in the second direction, and the second partition 221 is spaced apart from both ends of the second heat exchange plate 220 in the second direction so that cavities 231 are formed at both ends of the second heat exchange plate 220 in the second direction.

[0053] In this embodiment, the distance from one end of the multiple first partitions 211 close to the liquid inlet 213 to the liquid inlet 213 along the second direction can be reduced in the direction away from the second heat exchange plate 220, so that the one end of the multiple first partitions 211 close to the liquid inlet 213 is stepped. For ease of understanding, the cavity 231 connected to the liquid inlet 213 can be regarded as a first channel extending along the first direction, and the flow direction of the coolant in the first channel is to flow along the first direction away from the second heat exchange plate 220.

[0054] The plurality of first flow channels 212 are branch flow channels opened in the first channel in the second direction. The flow rate is related to the flow velocity and the cross-sectional area of ​​the flow channel, and the flow velocity is related to the pressure.

[0055] In actual implementation, it is assumed that the pressure at the liquid inlet 213 is constant. During the flow of the coolant in the first channel, after passing through the first first channel 212 in the second direction, part of the coolant enters the first channel and the pressure of the coolant in the first channel will drop partially. In order to ensure sufficient pressure, it is necessary to reduce the cross-sectional area of ​​the first channel in the first direction to ensure that there is enough coolant in the second first channel 212, and so on. Through this design method, the flow in multiple first channels 212 can be made relatively uniform.

[0056] In this embodiment, the distance from one end of the multiple second partitions 221 close to the liquid outlet 223 to the liquid outlet 223 along the second direction becomes smaller in the direction away from the first heat exchange plate 210, so that one end of the multiple second partitions 221 close to the liquid inlet 213 is stepped. For ease of understanding, the cavity 231 connected to the liquid outlet 223 can be regarded as a second channel extending along the first direction, and the flow direction of the coolant in the second channel is to flow along the first direction close to the first heat exchange plate 210.

[0057] The technical solution of the aforementioned first channel can be referred to, and the cross-sectional dimensions of the second channel in the first direction can be adjusted to change the pressure at the connection point between different second channels 222 and the first channel, thereby adjusting the flow rate and flow rate in different second channels 222 to make the flow rate in multiple second channels 222 relatively uniform.

[0058] According to the first partition 211 and the second partition 221 provided in the embodiment of the present application, utilizing the characteristic that the liquid inlet 213 and the liquid outlet 223 are centrally disposed in the heat exchange plate assembly composed of the first heat exchange plate 210 and the second heat exchange plate 220, by adjusting the end positions of the first partition 211 and the second partition 221, the flow rate of the coolant in the plurality of first flow channels 212 and the plurality of second flow channels 222 is made relatively uniform, thereby improving the uniformity of the overall temperature.

[0059] According to some embodiments of the present application, Figure 4As shown, in at least one group of the plurality of first separators 211 and the plurality of second separators 221 , at least two separators have different distances from the busbar 240 .

[0060] It is understandable that the coolant flows along the second direction when flowing in the first flow channel 212 and the second flow channel 222, and flows along the first direction when flowing in the manifold 240. In the process of the coolant transitioning from the first flow channel 212 to the manifold 240, and from the manifold 240 to the second flow channel 222, the flow direction of the coolant will have a certain angle with the first direction and the second direction.

[0061] By adjusting the distance between the first partition 211 and the manifold 240, the timing of the coolant in different first flow channels 212 entering the manifold 240 can be changed, thereby adjusting the total amount of the coolant in the plurality of first flow channels 212 entering the manifold 240. By adjusting the distance between the second partition 221 and the manifold 240, the timing of the coolant entering the second heat exchange plate 220 from the manifold 240 entering different second flow channels 222 can be changed, thereby changing the flow rate of the coolant in different second flow channels 222.

[0062] The following is a detailed description of the embodiments of the present application from three different implementation perspectives.

[0063] 1. If Figure 4 As shown, the distances between the multiple second partitions 221 and the busbar 240 can be set differently, or the distances between some of the multiple second partitions 221 and the busbar 240 can be set differently; the distances between the first partition 211 and the busbar 240 can be set the same.

[0064] 2. The distances between the multiple first separators 211 and the busbar 240 can be set differently, or the distances between some of the multiple first separators 211 and the busbar 240 can be set differently; the distances between the second separators 221 and the busbar 240 can be set the same.

[0065] 3. The spacings between the multiple first partitions 211 and the busbar 240 can be set differently, or the spacings between some of the multiple first partitions 211 and the busbar 240 can be set differently; the spacings between the multiple second partitions 221 and the busbar 240 can be set differently, or the spacings between some of the multiple second partitions 221 and the busbar 240 can be set differently.

[0066] According to some embodiments of the present application, Figure 4As shown, the conduit 240 may be provided with a plurality of first through holes 242 corresponding to the first heat exchange plate 210 and a plurality of second through holes 243 corresponding to the second heat exchange plate 220, the first through holes 242 may be connected to the first flow channel 212, the second through holes 243 may be connected to the second flow channel 222, and the number of the first through holes 242 and the first flow channel 212 may be different, and the number of the second through holes 243 and the second flow channel 222 may be different.

[0067] In this embodiment, the first through hole 242 can be connected to the confluence channel 241, and the multiple first through holes 242 can be distributed along the first direction. By setting up multiple first through holes 242, the coolant in the multiple first channels 212 can be introduced into the confluence piece 240, wherein the number of the first through holes 242 and the first channels 212 can be different, so that the first through holes 242 and the first channels 212 are not one-to-one corresponding, and by adjusting the number of the first through holes 242, the resistance of different first channels 212 entering the confluence piece 240 can be changed, thereby playing a role in regulating the flow rate in each first channel 212 and improving the uniformity of the flow rate in the multiple first channels 212.

[0068] The second through hole 243 can be connected to the confluence channel 241, and multiple second through holes 243 can be distributed along the first direction. Multiple second through holes 243 are provided to introduce the coolant in the multiple second channels 222 into the confluence piece 240, wherein the number of second through holes 243 and the number of second channels 222 can be different, so that the second through holes 243 and the second channels 222 are not one-to-one corresponding, and the resistance of the confluence piece 240 entering different second channels 222 can be changed by adjusting the number of second through holes 243, thereby playing a role in regulating the flow rate in each second channel 222 and improving the uniformity of the flow rate in the multiple second channels 222.

[0069] According to some embodiments of the present application, Figure 4 As shown, among the plurality of first through holes 242 , there are at least two pairs of the first through holes 242 with different spacings; and / or, among the plurality of second through holes 243 , there are at least two pairs of the second through holes 243 with different spacings.

[0070] It is understandable that, because the liquid inlet 213 and the liquid outlet 223 are centrally arranged, the flow rate and pressure at the inlet ends of different first flow channels 212 and different second flow channels 222 will inevitably deviate. If the first through hole 242 and the second through hole 243 are arranged evenly, it will easily lead to a larger flow rate in the flow channel with a higher pressure and a smaller flow rate in the flow channel with a lower pressure.

[0071] When the number of the first through holes 242 is more than two, there are at least two pairs of first through holes 242 among the multiple first through holes 242 with different spacings in the first direction. The spacings between the first through holes 242 are adjusted to adjust the corresponding positions of the first through holes 242 and the first heat exchange plate 210, and then to adjust the corresponding positions of the first through holes 242 and the multiple first flow channels 212, thereby adjusting the resistance and flow rate in different first flow channels 212 and improving the uniformity of the flow rate in the multiple first flow channels 212.

[0072] When the number of the second through holes 243 is more than two, there are at least two pairs of second through holes 243 among the multiple second through holes 243 with different spacings in the first direction. The spacings between the second through holes 243 are adjusted to adjust the corresponding positions of the second through holes 243 and the second heat exchange plate 220, and then to adjust the corresponding positions of the second through holes 243 and the multiple second flow channels 222, thereby adjusting the resistance of entering different second flow channels 222 from the conduit 240, adjusting the flow rates in different second flow channels 222, and improving the uniformity of the flow rates in the multiple second flow channels 222.

[0073] In actual implementation, simulation analysis can be used to specifically select and adjust the spacing between multiple first through holes 242, or the spacing between multiple second through holes 243, or the spacing between multiple first through holes 242 and the spacing between multiple second through holes 243 at the same time according to various parameters.

[0074] According to some embodiments of the present application, Figure 4 As shown, at least two through holes among the plurality of first through holes 242 and the plurality of second through holes 243 may have different apertures in the first direction.

[0075] In this embodiment, there may be at least two through holes among the multiple first through holes 242 and the multiple second through holes 243 that have different apertures in the first direction, that is, the aperture of at least one through hole is different from the apertures of the other through holes, and the through hole can be the first through hole 242 or the second through hole 243.

[0076] For ease of understanding, it is taken as an example that three first through holes 242 are provided and three second through holes 243 are provided:

[0077] In one example, the three first through holes 242 have the same aperture, at least one of the three second through holes 243 has a different aperture from the first through hole 242 , and the apertures of the remaining second through holes 243 may be the same as or different from the first through hole 242 .

[0078] In another example, the three second through holes 243 have the same aperture, at least one of the three first through holes 242 has a different aperture from the second through hole 243 , and the apertures of the remaining first through holes 242 may be the same as or different from the second through hole 243 .

[0079] In another example, at least one first through hole 242 among the three first through holes 242 has a different aperture from the other first through holes 242 , and at least one second through hole 243 among the three second through holes 243 has a different aperture from the other second through holes 243 .

[0080] It is understandable that the larger the aperture of the through hole in the first direction, the smaller the flow resistance, and the smaller the aperture, the higher the flow resistance. By changing the aperture of the through hole, the flow resistance of the corresponding through hole can be changed, which helps to adjust the flow of the flow channel to improve the uniformity of the flow in the multiple first flow channels 212 and the multiple second flow channels 222.

[0081] According to some embodiments of the present application, Figure 4 As shown, the number of the first through holes 242 may be no greater than the number of the second through holes 243 .

[0082] Due to the design characteristics of multiple first flow channels 212 connected in parallel and multiple second flow channels 222 connected in parallel, as the coolant flows backward, the corresponding stability will gradually deteriorate and the control difficulty will increase.

[0083] Therefore, in this embodiment, the number of first through holes 242 may not be greater than the number of second through holes 243. To facilitate the adjustment of the uniformity of the flow rate on the rear side of the entire flow path, the number of second through holes 243 may be greater than the number of first through holes 242 to improve the convenience of flow rate adjustment. For example, three first through holes 242 may be provided and four second through holes 243 may be provided.

[0084] According to some embodiments of the present application, Figure 4 As shown, at least two of the plurality of first flow channels 212 may have different widths in the first direction; and / or at least two of the plurality of second flow channels 222 may have different widths in the first direction.

[0085] It can be understood that by changing the width of the flow channel in the first direction, the cross-sectional size of the flow channel can be changed, thereby changing the flow resistance in the corresponding flow channel, thereby achieving distribution of the flow in the flow channel.

[0086] In one example, the width of at least one of the multiple first flow channels 212 in the first direction can be adjusted to be different to adjust the flow resistance of the corresponding first flow channel 212, thereby changing the flow rate of the first flow channel 212, wherein some of the multiple first flow channels 212 can have the same width in the first direction, or the width of each first flow channel 212 can be different.

[0087] In another example, the width of at least one of the multiple second flow channels 222 in the first direction can be adjusted to be different so as to adjust the flow resistance of the corresponding second flow channel 222 and thereby change the flow rate of the second flow channel 222, wherein some of the multiple second flow channels 222 can have the same width in the first direction, or the width of each second flow channel 222 can be different.

[0088] In another example, the widths of the first flow channel 212 and the second flow channel 222 in the first direction may be adjusted simultaneously. The specific adjustment method may refer to the first two examples.

[0089] According to the embodiment of the present application, the width of the flow channel in the first direction is adjusted to adjust the flow rate distributed in different flow channels, so as to improve the uniformity of the flow rate in each flow channel.

[0090] According to some embodiments of the present application, Figure 4 As shown, the width of the first flow channel 212 located at one end away from the second heat exchange plate 220 among the multiple first flow channels 212 can be the largest in the first direction; and / or, the width of the second flow channel 222 located at one end away from the first heat exchange plate 210 among the multiple second flow channels 222 can be the largest in the first direction.

[0091] In this embodiment, because the first flow channel 212 located at one end away from the second heat exchange plate 220 among the multiple first flow channels 212 is farthest from the liquid inlet 213, the width of the first flow channel 212 is set to be the largest to reduce the flow resistance of the first flow channel 212 and increase the flow rate of the first flow channel 212, thereby improving the uniformity of the flow rates of the multiple first flow channels 212.

[0092] Because the second flow channel 222 located at one end away from the first heat exchange plate 210 among the multiple second flow channels 222 is farthest from the liquid outlet 223, the width of the second flow channel 222 is set to be the largest to reduce the flow resistance of the second flow channel 222 and increase the flow rate of the second flow channel 222, thereby improving the uniformity of the flow rates of the multiple second flow channels 222.

[0093] In some embodiments, the first heat exchange plate 210 and the second heat exchange plate 220 can be made of aluminum profiles by extrusion, so that the first heat exchange plate 210 and the second heat exchange plate 220 have the first separator 211 and the second separator 221 after extrusion, and the processing and production are simple. The first separator 211 and the second separator 221 also serve as reinforcing ribs, and the structural strength is high, so that the heat exchange plate can directly support the battery module 110 and serve as a structural member of the battery 100.

[0094] like Figure 1-Figure 3 As shown, the manifold 240, the first heat exchange plate 210 and the second heat exchange plate 220 are welded together as a whole to ensure sealing and overall structural strength. A seal 250 is also provided on the side of the first heat exchange plate 210 and the second heat exchange plate 220 away from the return member. The seal 250 can be welded to the first heat exchange plate 210 and the second heat exchange plate 220 to seal the end of the first heat exchange plate 210 and the second heat exchange plate 220 away from the manifold 240 to form a closed space.

[0095] According to some embodiments of the present application, Figure 1 and Figure 2 As shown, the busbar 240 may be provided with a first mounting portion 244 , and the first mounting portion 244 may be used to connect with the battery module 110 of the battery 100 .

[0096] In this embodiment, the conduit 240 may include a main body and a first mounting portion 244 , a conduit channel 241 is formed in the main body, and a first through hole 242 and a second through hole 243 are formed on one side of the main body close to the first heat exchange plate 210 and the second heat exchange plate 220 .

[0097] The first mounting portion 244 is disposed on the upper side of the busbar 240, and a mounting hole is provided on the first mounting portion 244. By providing the first mounting portion 244, the first heat exchange plate 210 and the second heat exchange plate 220 can support the battery module 110, while the battery module 110 can be connected with the mounting hole on the first mounting portion 244 to fix the battery module 110. The heat exchange assembly 200 can be used as a structural component of the battery 100 while playing a role in thermal management, thereby improving the strength of the overall structure.

[0098] According to some embodiments of the present application, Figure 1-Figure 3 As shown, the first heat exchange plate 210 is provided with a second mounting portion 232 on the side away from the second heat exchange plate 220 and the second heat exchange plate 220 is provided with a second mounting portion 232 on the side away from the first heat exchange plate 210 , and the second mounting portion 232 is used to connect to the box body of the battery 100 .

[0099] In this embodiment, the second mounting portion 232 can be extruded and formed integrally with the first heat exchange plate 210 and the second heat exchange plate 220 , which has high structural strength and low production and processing difficulty, thereby reducing production costs.

[0100] The second mounting portion 232 can be fixedly connected to the case of the battery 100. The heat exchange assembly 200 and the case are assembled through the second mounting portion 232. The second mounting portion 232 is provided to facilitate fixed connection between the heat exchange assembly 200 and the case. The connection has high strength and strong supporting force, which can effectively support the battery module 110. It has little impact on the flow channels in the first heat exchange plate 210 and the second heat exchange plate 220, has higher stability, and avoids the problem of excessive machining and welding of the fixed beam when the battery module 110 is installed.

[0101] The embodiment of the present application further provides a battery 100 , which includes a heat exchange component 200 and a battery module 110 as described in any of the above embodiments, and the battery module 110 is installed in the heat exchange component 200 .

[0102] In this embodiment, the battery 100 also includes a box body, the heat exchange assembly 200 is fixedly connected to the box body, and the battery module 110 is supported by the heat exchange assembly 200. While the heat exchange assembly 200 performs thermal management on the battery module 110, it also supports and fixes the battery module 110.

[0103] According to the battery 100 provided in the embodiment of the present application, by setting the heat exchange component 200, the liquid inlet 213 and the liquid outlet 223 are concentrated, thereby improving the space utilization inside the box of the battery 100, and the flow rate of the flow channel in the heat exchange plate is uniform, so the heat exchange at each position of the battery module 110 is uniform, the heat exchange effect is better, and the battery 100 has higher stability in use. The heat exchange component 200 also serves as a structural component of the battery 100, reducing the machining process of the fixed beam and excessive welding processes when installing the battery module 110, thereby improving assembly efficiency and structural strength, and reducing production costs.

[0104] In some embodiments, Figure 2 and Figure 3 As shown, the first heat exchange plate 210 is further provided with a first baffle 214 on the side away from the second heat exchange plate 220 in the first direction, and the first baffle 214 can be extruded integrally with the first heat exchange plate 210; the second heat exchange plate 220 is still provided with a second baffle 224 on the side away from the first heat exchange plate 210 in the first direction, and the second baffle 224 can be extruded integrally with the second heat exchange plate 220.

[0105] A third baffle 260 is also provided on the surface of the first heat exchange plate 210 and the second heat exchange plate 220 away from the manifold 240. A closed installation plane is formed by the first baffle 214, the second baffle 224, the third baffle 260 and the first mounting portion 244. The battery module 110 can be mounted on the installation plane. By defining the closed installation plane, it is convenient to apply glue on the surface of the battery module 110 and the heat exchange plate. The glue is not easy to overflow, the gluing efficiency is high, the process effect is good, and the structure is stable.

[0106] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0107] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "liquid level", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0108] In the description of this application, "first feature" or "second feature" may include one or more of the features.

[0109] In the description of the present application, “plurality” means two or more.

[0110] In the description of the present application, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0111] In the description of the present application, “above”, “over” and “above” a first feature to a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the liquid level of the first feature is higher than that of the second feature.

[0112] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0113] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A heat exchange component, applied to a battery, characterized in that: include: A first heat exchange plate and a second heat exchange plate are arranged along a first direction, the first heat exchange plate is provided with a plurality of first flow channels extending along a second direction, the second heat exchange plate is provided with a plurality of second flow channels extending along the second direction, the plurality of first flow channels and the plurality of second flow channels are connected in parallel along the first direction, the first heat exchange plate and the second heat exchange plate are respectively provided with a liquid inlet and a liquid outlet at the same end in the second direction, the liquid inlet and the liquid outlet are arranged on one side of the first heat exchange plate and the second heat exchange plate close to each other along the first direction, wherein at least two of the first flow channels have different lengths, and at least two of the second flow channels have different lengths; A conduit is connected to one end of the first heat exchange plate and the second heat exchange plate along the second direction away from the liquid inlet and the liquid outlet, and the plurality of first flow channels are connected to the plurality of second flow channels through the conduit.

2. The heat exchange assembly according to claim 1, characterized in that: A first partition and a second partition are respectively provided in the first heat exchange plate and the second heat exchange plate, each of which is spaced apart along the first direction and extends along the second direction; The distance from one end of the plurality of first partitions close to the liquid inlet along the second direction to the liquid inlet decreases along the direction away from the second heat exchange plate; and / or, The distance from one end of the plurality of second partitions close to the liquid outlet along the second direction to the liquid outlet decreases along a direction away from the first heat exchange plate.

3. The heat exchange assembly according to claim 2, characterized in that: In at least one group of the plurality of first separators and the plurality of second separators, at least two separators have different distances from the busbar.

4. The heat exchange assembly according to claim 1, characterized in that: The conduit is provided with a plurality of first through holes corresponding to the first heat exchange plate and a plurality of second through holes corresponding to the second heat exchange plate, the first through holes are connected to the first flow channel, the second through holes are connected to the second flow channel, and the number of the first through holes is different from that of the first flow channel, and the number of the second through holes is different from that of the second flow channel.

5. The heat exchange assembly according to claim 4, characterized in that: Among the plurality of the first through holes, at least two pairs of the first through holes have different spacings; and / or, Among the plurality of second through holes, at least two pairs of the second through holes have different intervals.

6. The heat exchange assembly according to claim 4, characterized in that: At least two of the plurality of first through holes and the plurality of second through holes have different apertures in the first direction.

7. The heat exchange assembly according to claim 4, characterized in that: The number of the first through holes is not more than the number of the second through holes.

8. The heat exchange assembly according to any one of claims 1 to 7, characterized in that: At least two of the plurality of first flow channels have different widths in the first direction; and / or, At least two of the plurality of second flow channels have different widths in the first direction.

9. The heat exchange assembly according to claim 8, characterized in that: Among the plurality of first flow channels, the first flow channel located at an end away from the second heat exchange plate has the largest width in the first direction; and / or, Among the plurality of second flow channels, the second flow channel located at an end away from the first heat exchange plate has the largest width in the first direction.

10. The heat exchange assembly according to any one of claims 1 to 7, characterized in that: The busbar is provided with a first mounting portion, and the first mounting portion is used to be connected to a battery module of a battery.

11. The heat exchange assembly according to any one of claims 1 to 7, characterized in that: The first heat exchange plate is provided with a second installation portion on a side away from the second heat exchange plate and the second heat exchange plate is provided with a second installation portion on a side away from the first heat exchange plate. The second installation portion is used to be connected to the battery box.

12. A battery, characterized in that: include: The heat exchange component according to any one of claims 1 to 11; The battery module is installed on the heat exchange component.

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