Battery heat exchanger and automobile heat management system

Abstract

The utility model belongs to the technical field of automobile heat management, and discloses a battery heat exchanger and an automobile heat management system. The battery heat exchanger comprises a heat exchange main body and a bypass structure, a plurality of first heat exchange runners and a plurality of second heat exchange runners are arranged in the heat exchange main body, first cooling liquid can be introduced into the first heat exchange runners, and second cooling liquid can be introduced into the second heat exchange runners; the first cooling liquid in each first heat exchange flow channel can exchange heat with the second cooling liquid in the corresponding second heat exchange flow channel. The bypass structure is connected with the heat exchange body, a bypass flow channel is arranged in the bypass structure and connected with the multiple first heat exchange flow channels in parallel, and first cooling liquid in the bypass flow channel does not exchange heat with second cooling liquid in the second heat exchange flow channels. The battery heat exchanger is suitable for the working condition requirement for low heat exchange performance of the battery, and the flow resistance of a system is not increased. The automobile heat management system comprising the battery heat exchanger is also suitable for the working condition requirement for low heat exchange performance of the battery.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive thermal management, and particularly relates to a battery heat exchanger and an automotive thermal management system. Background Art

[0002] Most new energy vehicles use power batteries as power sources. The optimal operating temperature of the battery is around 20°C. To ensure the service life and working efficiency of the battery, a battery heat exchanger is required to cool or heat the power battery according to its actual conditions. Specifically, there are heat exchange channels inside the battery heat exchanger, and the heat exchange channels are formed by brazing a certain number of laminations. The heat exchange channels include a hot channel for passing high-temperature coolant and a cold channel for passing low-temperature coolant. The high-temperature coolant in the hot channel heats the low-temperature coolant in the cold channel through heat exchange, and the low-temperature coolant in the cold channel is heated and then used to heat the battery.

[0003] Due to the fact that under specific working conditions, the heat exchange performance of the battery heat exchanger cannot be too high, that is, the temperature of the coolant for heating the battery cannot be too high. If the number of laminations needs to be reduced structurally to meet the performance requirements under specific working conditions, the lower the number of laminations, the higher the system flow resistance. Therefore, there are certain application limitations in the existing battery heat exchangers. Thus, there is an urgent need to propose a battery heat exchanger and an automotive thermal management system to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a battery heat exchanger, which is suitable for the working condition requirements with low heat exchange performance of the battery and does not increase the flow resistance of the system.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A battery heat exchanger, comprising:

[0007] A heat exchange main body, in which a plurality of first heat exchange channels and a plurality of second heat exchange channels are provided. The plurality of first heat exchange channels are connected in parallel with each other, and the plurality of second heat exchange channels are connected in parallel with each other. The first coolant can be introduced into each first heat exchange channel, and the second coolant can be introduced into each second heat exchange channel. The first coolant in each first heat exchange channel can exchange heat with the second coolant in the corresponding second heat exchange channel;

[0008] A bypass structure, connected to the heat exchange main body. A bypass channel is provided in the bypass structure. The bypass channel is connected in parallel with the plurality of first heat exchange channels. The first coolant can be introduced into the bypass channel, and the first coolant in the bypass channel does not exchange heat with the second coolant in the second heat exchange channel.

[0009] Preferably, the bypass structure is located at the bottom of the heat exchange body. The inlet and outlet of the bypass flow channel are respectively provided at the top of the bypass structure; the inlet of the first coolant, the outlet of the first coolant, the inlet of the second coolant and the outlet of the second coolant are provided at the top of the heat exchange body; the inlet of the first coolant is communicated with the inlets of each of the first heat exchange flow channels and the inlet of the bypass flow channel respectively, and the outlet of the first coolant is communicated with the outlets of each of the first heat exchange flow channels and the outlet of the bypass flow channel respectively; the inlet and outlet of the second coolant are communicated with the inlet and outlet of each of the second heat exchange flow channels respectively.

[0010] Preferably, the heat exchange body includes a bottom plate located at the bottom of the heat exchange body. The bypass structure is a groove body buckled on the outer bottom wall of the bottom plate. Two first through holes are provided on the bottom plate, and the two first through holes are respectively the inlet and outlet of the bypass flow channel.

[0011] Preferably, the groove body is formed by stamping and bulging from the inner bottom wall of the bottom plate outward.

[0012] Preferably, the heat exchange body further includes a cover plate and a plurality of stacked plates connected in sequence from top to bottom. The first heat exchange flow channel is formed between the cover plate and the adjacent stacked plate, and the first heat exchange flow channel or the second heat exchange flow channel is formed between the adjacent stacked plates. The bottom plate is attached to the bottom of the adjacent stacked plates, and the first heat exchange flow channels and the second heat exchange flow channels are arranged in a staggered manner.

[0013] Preferably, the cover plate, the plurality of stacked plates and the bottom plate are all disc-shaped. The bottom of the cover plate extends into the stacked plates, and the outer peripheral side wall of the cover plate is hermetically connected to the inner peripheral side wall of the stacked plates;

[0014] The bottom of the stacked plate adjacent to the bottom plate extends into the bottom plate, and the outer peripheral side wall and the outer bottom wall of the stacked plate are hermetically connected to the inner peripheral side wall and the inner bottom wall of the bottom plate respectively;

[0015] Among the remaining stacked plates, the bottom of the stacked plate located in the upper layer extends into the stacked plate located in the lower layer, and the inner peripheral side wall of the stacked plate located in the lower layer is hermetically connected to the outer peripheral side wall of the stacked plate located in the upper layer.

[0016] Preferably, the central plate surfaces of the multiple laminated plates are arranged facing each other. Four second through-holes are formed in the central plate surface of each laminated plate, and the four second through-holes are distributed in a rectangular shape. Annular protrusions are circumferentially provided on the two second through-holes distributed in one row. The rows where the annular protrusions are located on adjacent laminated plates are arranged staggeredly, so that the two annular protrusions and the two second through-holes on one laminated plate are respectively arranged opposite to the two second through-holes and the two annular protrusions on the other laminated plate. The top of the annular protrusion is hermetically connected to the bottom of the laminated plate at the outer periphery of the corresponding second through-hole, and a gap is left between the bottom of the annular protrusion and the inner bottom of the adjacent laminated plate.

[0017] Four third through-holes are formed in the central plate surface of the cover plate, and the four third through-holes are distributed in a rectangular shape. The two third through-holes distributed in one row are respectively the inlet of the first coolant and the outlet of the first coolant, and the two third through-holes distributed in the other row are respectively the inlet of the second coolant and the outlet of the second coolant. The tops of the two annular protrusions on the laminated plate adjacent to the cover plate are hermetically connected to the outer peripheries of the two third through-holes corresponding to the inlet and outlet of the second coolant.

[0018] The two second through-holes at the two annular protrusions on the laminated plate adjacent to the bottom plate are respectively communicated with the inlet of the bypass flow channel and the outlet of the bypass flow channel.

[0019] Preferably, a first notch is provided on the outer peripheral edge of each laminated plate. When the multiple laminated plates are sleeved and installed, the multiple first notches correspond to each other.

[0020] Preferably, a second notch is provided on the outer peripheral edge of the bottom plate. When the bottom plate is installed, the second notch can correspond to the first notch on the adjacent laminated plate.

[0021] Another object of the present invention is to provide an automotive thermal management system, which can be applicable to the working condition requirements with low heat exchange performance of the battery.

[0022] To achieve this purpose, the present invention adopts the following technical solutions:

[0023] An automotive thermal management system includes the above-mentioned battery heat exchanger for heating the battery.

[0024] Advantages of the present utility model: The battery heat exchanger provided by the present utility model includes a heat exchange main body and a bypass structure. The heat exchange main body is provided with a plurality of first heat exchange channels and a plurality of second heat exchange channels. The plurality of first heat exchange channels are connected in parallel with each other, and the plurality of second heat exchange channels are connected in parallel with each other. A first coolant can be introduced into each first heat exchange channel, and a second coolant can be introduced into each second heat exchange channel. The first coolant in each first heat exchange channel can exchange heat with the second coolant in the corresponding second heat exchange channel, thereby realizing heat exchange with the battery. The bypass structure is connected to the heat exchange main body and is provided with a bypass channel. The bypass channel is connected in parallel with the plurality of first heat exchange channels, enabling the introduction of the first coolant. The first coolant in the bypass channel does not exchange heat with the second coolant in the second heat exchange channel. After converging with the first coolant that has exchanged heat with the second coolant, they jointly act on the battery for heat exchange. Since the first coolant in the bypass channel does not exchange heat with the second coolant, the amount of the first coolant that exchanges heat with the second coolant is reduced, which can reduce the heat exchange performance of the battery and is applicable to the working condition requirements with lower heat exchange performance of the battery. For example, the first coolant is a low-temperature coolant, and the second coolant is a high-temperature coolant. The low-temperature coolant is heated by the high-temperature coolant and then used to heat the battery. However, since the temperature for heating the battery cannot be too high, it is necessary to reduce the heat exchange of the low-temperature coolant. A bypass channel is provided to divert a part of the low-temperature coolant without exchanging heat with the high-temperature coolant.

[0025] The battery heat exchanger also avoids the problem of large system flow resistance caused by reducing the number of flow channels of the first coolant and the second coolant.

[0026] The vehicle thermal management system provided by the present utility model includes the above battery heat exchanger and can be applicable to the working condition requirements with lower heat exchange performance of the battery. Description of the Drawings

[0027] Figure 1 is a schematic structural diagram of the battery heat exchanger provided by an embodiment of the present utility model;

[0028] Figure 2 is a schematic structural diagram of the bottom plate of the battery heat exchanger provided by an embodiment of the present utility model;

[0029] Figure 3 is a schematic internal structural diagram of the battery heat exchanger provided by an embodiment of the present utility model;

[0030] Figure 4 is a schematic internal working principle diagram of the battery heat exchanger provided by an embodiment of the present utility model;

[0031] Figure 5 is a schematic partial structural diagram of the battery heat exchanger provided by an embodiment of the present utility model.

[0032] In the figure:

[0033] 100, heat exchange main body; 110, bottom plate; 120, cover plate; 130, laminated plate; 101, first heat exchange flow channel; 102, second heat exchange flow channel; 103, first notch; 104, second notch; 200, bypass structure; 201, bypass flow channel. Detailed implementation mode

[0034] The present utility model will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the sake of description, only parts related to the present utility model rather than all structures are shown in the drawings.

[0035] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0036] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is lower than that of the second feature.

[0037] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0038] The battery heat exchanger provided in this embodiment is applicable to the working condition requirements with low heat exchange performance of the battery and does not increase the flow resistance of the system.

[0039] Specifically, as Figures 1 to 5As shown in the figure, the battery heat exchanger includes a heat exchange main body 100 and a bypass structure 200. The heat exchange main body 100 is provided with a plurality of first heat exchange channels 101 and a plurality of second heat exchange channels 102. The plurality of first heat exchange channels 101 are connected in parallel with each other, and the plurality of second heat exchange channels 102 are connected in parallel with each other. A first coolant can be introduced into the first heat exchange channels 101, and a second coolant can be introduced into the second heat exchange channels 102. The first coolant in each first heat exchange channel 101 can exchange heat with the second coolant in the corresponding second heat exchange channel 102. The bypass structure 200 is connected to the heat exchange main body 100. A bypass channel 201 is provided in the bypass structure 200, and the bypass channel 201 is connected in parallel with the plurality of first heat exchange channels 101. A first coolant can be introduced into the bypass channel 201, and the first coolant in the bypass channel 201 does not exchange heat with the second coolant in the second heat exchange channels 102.

[0040] Based on the above settings, the plurality of first heat exchange channels 101 are connected in parallel with each other, and the plurality of second heat exchange channels 102 are connected in parallel with each other. The first coolant can enter each of the first heat exchange channels 101 respectively and exchange heat with the second coolant in the corresponding second heat exchange channel 102. The first coolant can also enter the bypass channel 201 and does not exchange heat with the second coolant in the second heat exchange channels 102, so that the amount of the first coolant exchanging heat with the second coolant is reduced, which can reduce the heat exchange performance of the battery and is suitable for the working condition requirements with lower heat exchange performance of the battery. Compared with the prior art, this battery heat exchanger does not reduce the number of the first heat exchange channels 101 and the second heat exchange channels 102, thereby reducing the heat exchange times of the first coolant and the second coolant, and further will not increase the flow resistance of the heat exchange system. In this embodiment, the first coolant is a low-temperature coolant, and the second coolant is a high-temperature coolant. The low-temperature coolant is heated by the high-temperature coolant and then used to heat the battery. However, since the temperature for heating the battery cannot be too high, it is necessary to reduce the heat exchange of the low-temperature coolant. By providing the bypass channel 201 to divert a part of the low-temperature coolant without exchanging heat with the high-temperature coolant, it can be avoided that the temperature of the coolant for heating the battery is too high.

[0041] Furthermore, in order to make the heat exchange between the first coolant and the second coolant sufficient, the bypass structure 200 is located at the bottom of the heat exchange main body 100. The top of the bypass structure 200 is respectively provided with an inlet of the bypass channel 201 and an outlet of the bypass channel 201; the top of the heat exchange main body 100 is provided with an inlet of the first coolant, an outlet of the first coolant, an inlet of the second coolant, and an outlet of the second coolant; the inlet of the first coolant is respectively communicated with the inlet of each first heat exchange channel 101 and the inlet of the bypass channel 201, and the outlet of the first coolant is respectively communicated with the outlet of each first heat exchange channel 101 and the outlet of the bypass channel 201; the inlet of the second coolant and the outlet of the second coolant are respectively communicated with the inlet of each second heat exchange channel 102 and the outlet of each second heat exchange channel 102.

[0042] Further, to reduce the volume of the battery heat exchanger and make the structure of the battery heat exchanger compact, continue to refer to Figure 1 , the heat exchange main body 100 includes a bottom plate 110 located at the bottom of the heat exchange main body 100. The bypass structure 200 is a groove body buckled on the outer bottom wall of the bottom plate 110. Two first through holes are provided on the bottom plate 110, and the two first through holes are respectively the inlet and the outlet of the bypass flow channel 201.

[0043] For the convenience of processing, the bottom plate 110 and the bypass structure 200 (i.e., the above-mentioned groove body) are integrally formed. Optionally, the groove body is formed by stamping and bulging from the inner bottom wall of the bottom plate 110.

[0044] In this embodiment, continue to refer to Figures 3 to 5 , the heat exchange main body 100 further includes a cover plate 120 and a plurality of stacked plates 130 connected in sequence from top to bottom. A first heat exchange flow channel 101 is formed between the cover plate 120 and the adjacent stacked plate 130. A first heat exchange flow channel 101 or a second heat exchange flow channel 102 is formed between the adjacent stacked plates 130. The bottom plate 110 is attached to the bottom of the adjacent stacked plates 130. The first heat exchange flow channels 101 and the second heat exchange flow channels 102 are arranged in a staggered manner.

[0045] Further, the cover plate 120, the plurality of stacked plates 130 and the bottom plate 110 are all disc-shaped, which is convenient for the sealing connection between the cover plate 120 and the stacked plates 130, and between the stacked plates 130 and the bottom plate 110. Specifically, the bottom of the cover plate 120 extends into the stacked plates 130, and the outer peripheral side wall of the cover plate 120 is hermetically connected to the inner peripheral side wall of the stacked plates 130; the bottom of the stacked plate 130 adjacent to the bottom plate 110 extends into the bottom plate 110, and the outer peripheral side wall and the outer bottom wall of the stacked plate 130 are respectively hermetically connected to the inner peripheral side wall and the inner bottom wall of the bottom plate 110; among the remaining stacked plates 130, the bottom of the upper stacked plate 130 extends into the lower stacked plate 130, and the inner peripheral side wall of the lower stacked plate 130 is hermetically connected to the outer peripheral side wall of the upper stacked plate 130.

[0046] Furthermore, in order to arrange the first heat exchange channels 101 and the second heat exchange channels 102 in an interleaved manner and prevent the first coolant from mixing with the second coolant, the middle plates of multiple overlapping plates 130 are arranged opposite to each other. Four second through-holes are formed in the middle plate of each overlapping plate 130, and the four second through-holes are distributed in a rectangular shape. Annular bosses are circumferentially arranged on two second through-holes in one row. The rows where the annular bosses are located on adjacent overlapping plates 130 are arranged in an interleaved manner, so that two annular bosses and two second through-holes on one overlapping plate 130 are respectively arranged opposite to two second through-holes and two annular bosses on another overlapping plate 130. The top of the annular boss is hermetically connected to the bottom of the overlapping plate 130 at the outer periphery of the corresponding second through-hole, and a gap is left between the bottom of the annular boss and the inner bottom of the adjacent overlapping plate 130 to form the first heat exchange channel 101 or the second heat exchange channel 102. Similarly, four third through-holes are formed in the middle plate of the cover plate 120, and the four third through-holes are distributed in a rectangular shape. Two third through-holes in one row are respectively the inlet of the first coolant and the outlet of the first coolant, and two third through-holes in the other row are respectively the inlet of the second coolant and the outlet of the second coolant. Moreover, the tops of two annular bosses on the overlapping plate 130 adjacent to the cover plate 120 are hermetically connected to the outer peripheries of the two third through-holes corresponding to the inlet and outlet of the second coolant. At the same time, two second through-holes at two annular bosses on the overlapping plate 130 adjacent to the bottom plate 110 are respectively communicated with the inlet of the bypass channel 201 and the outlet of the bypass channel 201.

[0047] Continue to refer to Figure 5 , a first notch 103 is provided on the outer peripheral edge of each overlapping plate 130, and when multiple overlapping plates 130 are partially sleeved and installed, the multiple first notches 103 correspond to each other.

[0048] Furthermore, a second notch 104 is provided on the outer peripheral edge of the bottom plate 110. When the bottom plate 110 is installed, the second notch 104 corresponds to the first notch 103 on the adjacent overlapping plate 130.

[0049] The vehicle thermal management system provided in this embodiment includes the above battery heat exchanger and can be applicable to the working condition requirements with relatively low battery heat exchange performance.

[0050] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention and are not intended to limit the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A battery heat exchanger, characterized in that Comprising: A heat exchange main body (100), within which there are provided a plurality of first heat exchange channels (101) and a plurality of second heat exchange channels (102). The plurality of first heat exchange channels (101) are connected in parallel with each other, and the plurality of second heat exchange channels (102) are connected in parallel with each other. A first coolant can be introduced into the first heat exchange channels (101), and a second coolant can be introduced into the second heat exchange channels (102). The first coolant in each first heat exchange channel (101) can exchange heat with the second coolant in the corresponding second heat exchange channel (102); A bypass structure (200), connected to the heat exchange main body (100). A bypass channel (201) is provided within the bypass structure (200). The bypass channel (201) is connected in parallel with the plurality of first heat exchange channels (101). A first coolant can be introduced into the bypass channel (201), and the first coolant in the bypass channel (201) does not exchange heat with the second coolant in the second heat exchange channels (102).

2. The battery heat exchanger according to claim 1, characterized in that, The bypass structure (200) is located at the bottom of the heat exchange main body (100). An inlet and an outlet of the bypass channel (201) are respectively provided at the top of the bypass structure (200); at the top of the heat exchange main body (100), there are provided an inlet of the first coolant, an outlet of the first coolant, an inlet of the second coolant, and an outlet of the second coolant; The inlet of the first coolant is communicated with the inlets of each first heat exchange channel (101) and the inlet of the bypass channel (201) respectively, and the outlet of the first coolant is communicated with the outlets of each first heat exchange channel (101) and the outlet of the bypass channel (201) respectively; the inlet and the outlet of the second coolant are communicated with the inlet and the outlet of each second heat exchange channel (102) respectively.

3. The battery heat exchanger according to claim 2, wherein, The heat exchange main body (100) includes a bottom plate (110) located at the bottom of the heat exchange main body (100). The bypass structure (200) is a groove body buckled on the outer bottom wall of the bottom plate (110). Two first through holes are provided on the bottom plate (110), and the two first through holes are respectively the inlet and the outlet of the bypass channel (201).

4. The battery heat exchanger according to claim 3, characterized in that, The groove body is formed by stamping and bulging from the inner bottom wall of the bottom plate (110).

5. The battery heat exchanger according to claim 4, wherein The heat exchange main body (100) further includes a cover plate (120) and a plurality of stacked plates (130) connected in sequence from top to bottom. The first heat exchange channels (101) are formed between the cover plate (120) and the adjacent stacked plates (130). The first heat exchange channels (101) or the second heat exchange channels (102) are formed between the adjacent stacked plates (130). The bottom plate (110) is attached to the bottom of the adjacent stacked plates (130). The first heat exchange channels (101) and the second heat exchange channels (102) are arranged in an alternating manner.

6. The battery heat exchanger according to claim 5, characterized in that, The cover plate (120), the plurality of stacked plates (130), and the bottom plate (110) are all disc-shaped. The bottom of the cover plate (120) extends into the stacked plates (130), and the outer peripheral side wall of the cover plate (120) is hermetically connected to the inner peripheral side wall of the stacked plates (130). The bottom of the stacked plate (130) adjacent to the bottom plate (110) extends into the bottom plate (110), and the outer peripheral side wall and the outer bottom wall of the stacked plate (130) are hermetically connected to the inner peripheral side wall and the inner bottom wall of the bottom plate (110) respectively. Among the remaining stacked plates (130), the bottom of the stacked plate (130) located in the upper layer extends into the stacked plate (130) located in the lower layer, and the inner peripheral side wall of the stacked plate (130) located in the lower layer is hermetically connected to the outer peripheral side wall of the stacked plate (130) located in the upper layer.

7. The battery heat exchanger according to claim 6, characterized in that, The middle plate surfaces of the plurality of stacked plates (130) are arranged facing each other. Four second through holes are formed in the middle plate surface of each stacked plate (130), and the four second through holes are distributed in a rectangular shape. An annular boss is circumferentially provided on two of the second through holes distributed in one row. The rows where the annular bosses are located on adjacent stacked plates (130) are staggered, so that the two annular bosses and the two second through holes on one of the stacked plates (130) are respectively opposite to the two second through holes and the two annular bosses on the other stacked plate (130). The top of the annular boss is hermetically connected to the bottom of the stacked plate (130) at the outer periphery of the corresponding second through hole, and a gap is left between the bottom of the annular boss and the inner bottom of the adjacent stacked plate (130). Four third through holes are formed in the middle plate surface of the cover plate (120), and the four third through holes are distributed in a rectangular shape. Two of the third through holes distributed in one row are respectively the inlet of the first coolant and the outlet of the first coolant, and two of the third through holes distributed in the other row are respectively the inlet of the second coolant and the outlet of the second coolant. The tops of the two annular bosses on the stacked plate (130) adjacent to the cover plate (120) are hermetically connected to the outer periphery of the two third through holes corresponding to the inlet and outlet of the second coolant. The two second through holes at the two annular bosses on the stacked plate (130) adjacent to the bottom plate (110) are respectively communicated with the inlet of the bypass flow channel (201) and the outlet of the bypass flow channel (201).

8. The battery heat exchanger according to claim 6, characterized in that, A first notch (103) is provided on the outer peripheral edge of each stacked plate (130). When the plurality of stacked plates (130) are partially sleeved and installed, the plurality of first notches (103) correspond to each other.

9. The battery heat exchanger according to claim 8, characterized in that, A second notch (104) is provided on the outer peripheral edge of the bottom plate (110). When the bottom plate (110) is installed, the second notch (104) can correspond to the first notch (103) on the adjacent stacked plate (130).

10. An automotive thermal management system, characterized in that, Including the battery heat exchanger according to any one of claims 1-9, which is used for heating the battery.

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