CN221841930U - Temperature regulation and control structure and battery pack - Google Patents

Abstract

The utility model discloses a temperature regulation structure and a battery pack, wherein the temperature regulation structure comprises a first cooling plate and a second cooling plate, and the second cooling plate is vertically or obliquely arranged on one side surface of the first cooling plate; be equipped with the cooling runner on the second cooling plate, the cooling runner is including a plurality of runner sections that communicate in proper order, and a plurality of runner sections are followed and are kept away from the direction of first cooling plate is arranged one by one, and a plurality of runner sections are in orthographic projection area on the second cooling plate lateral wall is followed and is close to the direction of first cooling plate and reduce in proper order. The orthographic projection area of a plurality of runner sections on the side wall of the second cooling plate is sequentially reduced along the direction close to the first cooling plate, so that the cooling coverage surface of the runner sections with higher cooling effect is larger, and further the battery core part far away from the first cooling plate can be better cooled and radiated, the radiation efficiency of the battery core is equivalent everywhere, the whole battery core is guaranteed to be in a uniform temperature state, and thermal runaway is avoided.

Description

Temperature regulation and control structure and battery pack

Technical Field

The utility model relates to the technical field of energy storage, in particular to a temperature regulation structure and a battery pack.

Background

With the development of new energy technology, product categories with battery packs as energy supply main bodies appear in various industries, and the popularization of new energy automobiles is overwhelmed worldwide mainly when belonging to the automobile industry. The battery pack mainly comprises a battery box body and a battery module arranged in the battery box body.

The battery module generally comprises a plurality of battery cells, the battery cells convert electric energy into chemical energy for storage, and when the battery cells are required to supply power, the chemical energy is converted into electric energy. Heat is generated because chemical energy and electrical energy in the cells need to be converted into chemical reaction. In order to ensure the normal operation of the battery pack, heat dissipation needs to be performed on the battery module to maintain a relatively safe chemical reaction environment.

In the prior art, a cooling plate is usually arranged at the top or bottom of the battery cell to cool the battery cell. Then, because the cooling plate only sets up in the one end of electric core, the middle part of electric core and the one end that the cooling plate was kept away from to the electric core its radiating efficiency is slower, and the one end that the electric core is close to the cooling plate dispels the heat faster, leads to electric core bulk temperature uneven, easily takes place thermal runaway.

Disclosure of utility model

The embodiment of the utility model mainly aims to provide a temperature regulation structure and a battery pack, and aims to solve the technical problem that heat runaway is easy to occur due to uneven heat dissipation of a battery cell in the prior art.

The embodiment of the utility model provides a temperature regulation structure, which comprises the following components:

A first cooling plate;

The second cooling plate is arranged on one side surface of the first cooling plate, and the first cooling plate and the second cooling plate are vertically or obliquely arranged; the cooling flow channel comprises a plurality of flow channel sections which are sequentially communicated, the flow channel sections are arranged one by one along the direction away from the first cooling plate, and the orthographic projection area of the flow channel sections on the side wall of the second cooling plate is sequentially reduced along the direction close to the first cooling plate.

In some embodiments of the present utility model, the cooling flow channel includes a first flow channel section and a second flow channel section that are adjacently disposed and in communication, the first flow channel section being disposed on a side of the second flow channel section away from the first cooling plate;

The orthographic projection area of the first flow passage section on the side wall of the second cooling plate is 1.5-3 times of the orthographic projection area of the second flow passage section on the second cooling plate.

In some embodiments of the present utility model, the first flow channel section includes a plurality of first sub-flow cavities, and the plurality of first sub-flow cavities are arranged one by one along a height direction of the second cooling plate;

the second flow channel section comprises a plurality of second sub-flow cavities, and the second sub-flow cavities are arranged one by one along the height direction of the second cooling plate.

In some embodiments of the present utility model, the number of first sub-flow chambers is greater than the number of second sub-flow chambers.

In some embodiments of the present utility model, two ends of the cooling flow channel are respectively provided with a cooling medium inlet and a cooling medium outlet, the cooling medium inlet is disposed at one end of the cooling flow channel away from the first cooling plate, and the cooling medium outlet is disposed at one end of the cooling flow channel close to the first cooling plate.

In some embodiments of the present utility model, the shape and size of the first sub-flow chamber are consistent with the shape and size of the second sub-flow chamber.

In some embodiments of the present utility model, a heater is disposed on the first cooling plate, and the heater is configured to heat the first cooling plate.

In some embodiments of the present utility model, the second cooling plate is connected to a middle portion of the first cooling plate, and the heater is disposed in the first cooling plate and aligned with the second cooling plate.

In some embodiments of the present utility model, a first heat conducting pad is disposed on a side of the first cooling plate, which is used for being attached to the battery cell; and/or

And a second heat conduction pad is arranged on one side of the second cooling plate, which is used for being attached to the battery cell.

In some embodiments of the present utility model, the present utility model also provides a battery pack including:

The battery cell temperature regulating structure;

the first battery cell is arranged on the first cooling plate;

the second battery cell is arranged on the first cooling plate, and the second cooling plate is positioned between the first wire and the second battery cell.

The embodiment of the utility model provides a temperature regulation structure and a battery pack, wherein the temperature regulation structure comprises a first cooling plate and a second cooling plate, the second cooling plate is attached to the side wall of a battery cell, a cooling runner is arranged in the second cooling plate to circulate cooling medium to cool and dissipate heat of the battery cell, the first cooling plate is arranged at one end of the second cooling plate and is connected with the second cooling plate, and the first cooling plate is used for being attached to one end of the battery cell and cooling the same, so that the side wall and the end part of the battery cell are simultaneously cooled, and the heat dissipation efficiency of the battery cell is improved.

The cooling flow channel comprises a plurality of flow channel sections which are sequentially communicated, the flow channel sections are sequentially stacked along the direction away from the first cooling plate, and the orthographic projection area of the flow channel sections on the side wall of the second cooling plate is sequentially reduced along the direction close to the first cooling plate.

It will be appreciated that the cooling medium is caused to flow in the cooling flow channels from the end remote from the first cooling plate to the end close to the first cooling plate. Since the cooling medium flows from the end of the second cooling plate far from the first cooling plate to the end of the second cooling plate close to the first cooling plate, the temperature of the cooling medium gradually rises along with the flow of the cooling medium, and the cooling medium is cooled in the flow passage section of the second cooling plate far from the first cooling plate. Therefore, the orthographic projection area of the plurality of runner sections on the side wall of the second cooling plate is sequentially reduced along the direction, namely, the cooling coverage surface of the runner sections far away from the first cooling plate is sequentially reduced along the direction, so that the cooling coverage surface of the runner sections far away from the first cooling plate is larger than that of the runner sections near the first cooling plate, the cooling coverage surface of the runner sections with better cooling effect is larger, more side walls of the battery cells can be covered compared with the runner sections near the first cooling plate, and further, the battery cells far away from the first cooling plate can be better cooled and radiated, the radiating efficiency of the battery cells is equivalent, the whole battery cells are guaranteed to be in a uniform temperature state, and thermal runaway is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view (front view) showing an external structure of a temperature control structure according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram showing an internal structure of a temperature control structure according to an embodiment of the present utility model;

FIG. 3 is a schematic view illustrating an internal structure of a temperature control structure according to another embodiment of the present utility model;

FIG. 4 is a schematic view (perspective view) showing an external structure of a temperature control structure according to an embodiment of the present utility model;

Fig. 5 is a schematic diagram illustrating a positional relationship between a battery cell and a temperature control structure of a battery pack according to an embodiment of the utility model.

Reference numerals: 10. a second cooling plate; 11. a cooling medium inlet; 12. a cooling medium outlet; 13. a cooling flow passage; 100. a first flow path section; 200. a second flow path section; 300. a third flow path segment; 101. a first sub-flow chamber; 201. a second sub-flow chamber; 301. a third sub-flow chamber; 20. a first cooling plate; 21. a heater; 22. reinforcing ribs; 31. a first cell; 32. and a second cell.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

As shown in fig. 1 to 4, the present utility model provides a temperature regulation structure for temperature regulation of an electric core in a battery pack, including a second cooling plate 10 and a first cooling plate 20. The second cooling plate 10 is disposed on one side surface of the first cooling plate 20, and the first cooling plate 20 and the second cooling plate 10 are disposed vertically or obliquely; the second cooling plate 10 is internally provided with a cooling flow channel 13, the cooling flow channel 13 comprises a plurality of flow channel sections which are sequentially communicated, the flow channel sections are arranged one by one along the direction away from the first cooling plate 20, and the orthographic projection area of the flow channel sections on the side wall of the second cooling plate 10 is sequentially reduced along the direction close to the first cooling plate 20.

The second cooling plate 10 is used to be attached to the side wall of the battery cell, that is, the height direction of the second cooling plate 10 is the same as the height direction of the battery cell. The second cooling plate 10 and the first cooling plate 20 may be integrally provided or may be separately provided.

The orthographic projection area of the flow channel section on the side wall of the second cooling plate 10 is the effective cooling area of the flow channel section on the battery cell. Because, along the end of the second cooling plate 10 away from the first cooling plate 20 toward the end of the second cooling plate 10 close to the first cooling plate 20, the orthographic projection areas of the plurality of runner segments on the second cooling plate 10 decrease in sequence, that is, along the end of the second cooling plate 10 away from the first cooling plate 20 toward the end of the second cooling plate 10 close to the first cooling plate 20, the effective cooling areas of the plurality of cooling runners 13 on the battery cells decrease gradually.

It can be appreciated that the embodiment of the utility model provides a temperature regulation structure and a battery pack, the temperature regulation structure comprises a first cooling plate 20 and a second cooling plate 10, the second cooling plate 10 is attached to the side wall of the battery cell, the battery cell is cooled and radiated by arranging a cooling runner 13 in the second cooling plate 10 to circulate a cooling medium, the first cooling plate 20 is arranged at one end of the second cooling plate 10 and connected with the second cooling plate, and the first cooling plate 20 is used for being attached to one end of the battery cell and cooling the same, so that the side wall and the end part of the battery cell are radiated simultaneously, and the radiating efficiency of the battery cell is improved.

The cooling flow channel 13 includes a plurality of flow channel segments that are sequentially communicated, the plurality of flow channel segments are arranged one by one along a direction away from the first cooling plate 20, and orthographic projection areas of the plurality of flow channel segments on the second cooling plate 10 are sequentially reduced along a direction approaching the first cooling plate 20.

It will be appreciated that the cooling medium is caused to flow in the cooling flow channels 13 from the end remote from the first cooling plate 20 to the end close to the first cooling plate 20. Since the cooling medium flows from the end of the second cooling plate 10 away from the first cooling plate 20 to the end of the second cooling plate 10 close to the first cooling plate 20, the temperature of the cooling medium gradually increases with the flow of the cooling medium, and thus the cooling medium is best cooled in the flow passage section of the second cooling plate 10 away from the first cooling plate 20. Therefore, the orthographic projection area of the plurality of runner segments on the second cooling plate 10 is sequentially reduced along the direction from one end of the second cooling plate 10 far away from the first cooling plate 20 towards one end of the second cooling plate 10 near the first cooling plate 20, that is, the cooling coverage surface of the plurality of runner segments is sequentially reduced along the direction, so that the cooling coverage surface of the runner segments far away from the first cooling plate 20 is larger than that of the runner segments near the first cooling plate 20, the cooling coverage surface of the runner segments with better cooling effect is larger, more cell side walls can be covered compared with the runner segments near the first cooling plate 20, and further, cooling and heat dissipation can be better carried out on the cell core part far away from the first cooling plate 20, so that the heat dissipation efficiency of the cell core is equivalent, the whole cell core is ensured to be in a uniform temperature state, and thermal runaway is avoided.

The utility model can perform high-efficiency heat dissipation and cooling on the battery core, and can realize uniform heat dissipation of all parts of the battery core, so that the whole battery core is in a uniform temperature state.

In general, the second cooling plate 10 is provided with a cooling flow channel 13, and heat exchange cooling is achieved with the battery cell through a cooling medium. The first cooling plate 20 is typically a metal heat radiating plate, and is configured to radiate heat for cooling.

Generally, the second cooling plate 10 is disposed perpendicular to the first cooling plate 20, and the temperature controlling structure formed by the two is in an "L" type structure or a "T" type structure.

In some embodiments, the cooling flow channel 13 comprises a first flow channel section 100 and a second flow channel section 200, the first flow channel section 100 being disposed on a side of the second flow channel section 200 remote from the first cooling plate 20 and disposed adjacent to the second flow channel section 200. The orthographic projected area of the first flow path segment 100 on the side wall of the second cooling plate 10 is 1.5 times to 3 times the orthographic projected area of the second flow path segment 200 on the side wall of the second cooling plate 10.

That is, the cooling flow passage 13 includes the first flow passage section 100 and the second flow passage section 200, and the first flow passage section 100 and the second flow passage section 200 are arranged one by one in the height direction of the second cooling plate 10.

The first flow channel segment 100 is disposed on a side of the second flow channel segment 200 away from the first cooling plate 20, and the orthographic projection area of the first flow channel segment 100 on the side wall of the second cooling plate 10 is larger than the orthographic projection area of the second flow channel segment 200 on the side wall of the second cooling plate 10.

Specifically, the first channel section 100 has a cuboid structure, the second channel section 200 has a cuboid structure, the length of the first channel section 100 is the same as the length of the second channel section 200, and the width of the first channel section 100 is 1.5-3 times of the width of the second cooling pipe channel.

Wherein in some embodiments the width of the first flow path segment 100 is 1.5 times the width of the second flow path segment 200.

In some embodiments, the width of the first flow path segment 100 is 2 times the width of the second flow path segment 200.

In some embodiments, the width of the first flow path segment 100 is 3 times the width of the second flow path segment 200.

Further, the length of the first flow path section 100, the length of the second flow path section 200, and the length of the second cooling plate 10 are the same.

In some embodiments, the first flow path section 100 includes a plurality of first sub-flow cavities 101, the plurality of first sub-flow cavities 101 being arranged one by one in sequence along the height direction of the second cooling plate 10, the first sub-flow cavities 101 extending along the length direction of the second cooling plate 10. The second flow path section 200 includes a plurality of second sub-flow cavities 201, the plurality of second sub-flow cavities 201 being arranged in sequence along the height direction of the second cooling plate 10, the second sub-flow cavities 201 extending along the length direction of the second cooling plate 10.

It can be understood that the first flow channel section 100 and the second flow channel section 200 are divided into a plurality of sub-flow cavities which are sequentially arranged along the height direction of the second cooling plate 10, so that the cooling medium can be uniformly distributed in the first flow channel section 100 and the second flow channel section 200, and the uniform cooling of the side walls of the electric core corresponding to the first flow channel section 100 and the second flow channel section 200 is realized, and the overall temperature uniformity of the electric core is ensured.

Specifically, in general, the second cooling plate 10 is of a hollow structure, and the first and second flow path sections 100 and 200 arranged in the height direction of the second cooling plate 10 are formed by providing partition ribs in the hollow structure.

Further, sub-dividing ribs may be provided in the hollow structure to divide the first flow path section 100 into a plurality of first sub-flow chambers 101 and the second cooling tube flow path into a plurality of second sub-flow chambers 201.

In some embodiments, M first sub-flow chambers 101 are provided in the first flow path section 100, N second sub-flow chambers 201 are provided in the second flow path section 200, and M is greater than N.

Note that M, N is a positive integer. If 3 first sub-flow chambers 101 are provided in the first flow path section 100, 2 second sub-flow chambers 201 are provided in the second flow path section 200.

In some embodiments, M first sub-flow chambers 101 are provided in the first flow path section 100, N second sub-flow chambers 201 are provided in the second flow path section 200, and M-n=1.

For example, 2 first sub-flow chambers 101 are provided in the first flow path section 100, and 1 second sub-flow chamber 201 is provided in the second flow path section 200.

In some embodiments, the shape and size of the first sub-flow chamber 101 is consistent with the shape and size of the second sub-flow chamber 201.

In some embodiments, the cooling flow channel 13 includes a first flow channel segment 100, a second flow channel segment 200, and a third flow channel segment. The first flow path segment 100, the second flow path segment 200, and the third flow path segment are all disposed along the length of the second cooling plate 10. The first flow path segment 100, the second flow path segment 200, and the third flow path segment are arranged in this order along the direction of the second cooling plate 10 from the end far from the first cooling plate 20 toward the end of the second cooling plate 10 near the first cooling plate 20. The cooling medium inlet 11, the first flow passage section 100, the second flow passage section 200, the third flow passage section, and the cooling medium outlet 12 are sequentially communicated. The orthographic projection area of the first flow channel segment 100 on the side wall of the second cooling plate 10 is 1.5 times the orthographic projection area of the second flow channel segment 200 on the side wall of the second cooling plate 10, and the orthographic projection area of the second flow channel segment 200 on the side wall of the second cooling plate 10 is 2 times the orthographic projection area of the third flow channel segment on the side wall of the second cooling plate 10.

The first flow channel section 100 includes 3 first sub-flow cavities 101 sequentially arranged along the height direction of the second cooling plate 10, the second flow channel section 200 includes 2 second sub-flow cavities 201 sequentially arranged along the height direction of the second cooling plate 10, and the third sub-flow cavity 301 includes 1 sub-flow cavity. The first sub-flow chamber 101, the second sub-flow chamber 201 and the third sub-flow chamber 301 are identical in shape and size and are all arranged along the length direction of the second cooling plate 10.

In some embodiments, the cooling channel 13 is provided with a cooling medium inlet 11 and a cooling medium outlet 12 at two ends, respectively, the cooling medium inlet 11 is disposed at one end of the cooling channel 13 away from the first cooling plate 20, and the cooling medium outlet 12 is disposed at one end of the cooling channel 13 near the first cooling plate 20.

That is, the cooling medium inlet 11, the plurality of flow path segments, and the cooling medium outlet 12 are sequentially communicated such that the cooling medium flows in the second cooling plate 10 from the end far from the first cooling plate 20 to the end near the first cooling plate 20.

Wherein, a plurality of cooling flow channels 13 in the second cooling plate 10 are arranged in turn along the height direction of the second cooling plate 10 and are communicated end to end, and the flow channel sections are all arranged along the length direction of the second cooling plate 10.

Meanwhile, the orthographic projection areas of the plurality of runner segments on the second cooling plate 10 decrease in sequence along the end of the second cooling plate 10 away from the first cooling plate 20 toward the end of the second cooling plate 10 near the first cooling plate 20.

Since the cooling medium flows from the end of the second cooling plate 10 away from the first cooling plate 20 to the end of the second cooling plate 10 close to the first cooling plate 20, the temperature of the cooling medium gradually increases as the cooling medium flows, and thus the cooling efficiency of the cooling medium is highest in the flow passage section of the second cooling plate 10 away from the first cooling plate 20. Therefore, the orthographic projection area of the plurality of runner segments on the second cooling plate 10 is sequentially reduced along the direction from one end of the second cooling plate 10 far away from the first cooling plate 20 to one end of the second cooling plate 10 near the first cooling plate 20, that is, the cooling coverage surface of the plurality of runner segments is sequentially reduced along the direction, so that the cooling efficiency of the runner segments far away from the first cooling plate 20 is higher than that near the first cooling plate 20, and further, the battery core part far away from the first cooling plate 20 can be better cooled and radiated, the radiation efficiency of the battery core is equivalent everywhere, the whole battery core is ensured to be in a uniform temperature state, and thermal runaway is avoided.

Generally, the cooling medium inlet 11 and the cooling medium outlet 12 are connected to an external cooling medium circulation system for providing a circulating flow of cooling medium.

In some embodiments, the first cooling plate 20 is provided with a heater 21, and the heater 21 is used to heat the first cooling plate 20.

The first cooling plate 20 is a heat dissipating plate structure, and the heater 21 heats the first cooling plate 20, thereby heating the first cooling plate 20 to heat the battery cells.

Specifically, the first cooling plate 20 is a plate-shaped structure made of metal, the heater 21 is an energized heating device such as a heating rod, and when the heater 21 works, the heater 21 exchanges heat with the first cooling plate 20, so as to heat the first cooling plate 20 to raise the temperature, and then the first cooling plate 20 exchanges heat with the battery cell to heat the battery cell.

Further, the heater 21 is further configured to heat the second cooling plate 10, where the first cooling plate 20 and the second cooling plate 10 are integrally disposed, and after the temperature of the first cooling plate 20 increases, heat of the first cooling plate is transferred to the second cooling plate 10, so as to heat the second cooling plate 10.

In some embodiments, the second cooling plate 10 is connected to a middle portion of the first cooling plate 20, and the heater 21 is disposed in the first cooling plate 20 and aligned with the second cooling plate 10.

It will be appreciated that the heater 21 is provided in the middle of the first cooling plate 20 so that one heater 21 can heat the first cooling plate 20 portions on both sides of the second cooling plate 10 simultaneously.

Specifically, the heater 21 is disposed inside the first cooling plate 20, and is embedded inside the first cooling plate 20, so that the contact area between the heater 21 and the first cooling plate 20 can be increased, and the heating efficiency of the heater 21 on the first cooling plate can be further improved.

In some embodiments, the second cooling plate 10 is connected to one side of the first cooling plate 20, and a plurality of reinforcing ribs 22 are disposed on one side of the first cooling plate 20 facing away from the second cooling plate 10, and the plurality of reinforcing ribs 22 are disposed at intervals along the width direction of the first cooling plate 20.

In some embodiments, the side of the first cooling plate 20 for attaching to the battery cell is provided with a first heat conductive pad.

In some implementations, the side of the second cooling plate 10 for attaching to the battery cell is provided with a second thermal pad.

In some implementations, the side of the second cooling plate 10 adjacent to the battery cell is provided with a second thermal pad, and the side of the first cooling plate 20 adjacent to the battery cell is provided with a first thermal pad.

It should be noted that, the first heat conductive pad and the second heat conductive pad are made of a common heat conductive adhesive and are used for being disposed between the electric core and the first cooling plate 20 and between the electric core and the second cooling plate 10, so as to improve the heat exchange efficiency between the first cooling plate 20 and the electric core and between the second cooling plate 10 and the electric core.

As shown in fig. 5, in some embodiments, the present utility model further provides a battery pack, which includes the above-mentioned temperature regulation structure, the first battery cell 31, and the second battery cell 32. The second cooling plate 10 is connected to the middle of the first cooling plate 20; the first battery cell 31 is arranged on one side of the second cooling plate 10 and is positioned on the first cooling plate 20; the second battery cell 32 is disposed on the other side of the second cooling plate 10 and on the first cooling plate 20. Because the battery pack includes the temperature regulation structure of the above embodiment, it has at least some or all of the beneficial effects of the above embodiment of the temperature regulation structure, and will not be described in detail herein.

The first battery cell 31 is located on the first cooling plate 20, that is, one end of the first battery cell 31 is connected to the first cooling plate 20. The second battery cell 32 is located on the first cooling plate 20, i.e., one end of the second battery cell 32 is connected to the first cooling plate 20.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. A temperature control structure, comprising:

A first cooling plate;

The second cooling plate is arranged on one side surface of the first cooling plate, and the first cooling plate and the second cooling plate are vertically or obliquely arranged; the cooling flow channel comprises a plurality of flow channel sections which are sequentially communicated, the flow channel sections are arranged one by one along the direction away from the first cooling plate, and the orthographic projection area of the flow channel sections on the side wall of the second cooling plate is sequentially reduced along the direction close to the first cooling plate.

2. The temperature regulating structure of claim 1, wherein the cooling flow channel comprises a first flow channel section and a second flow channel section that are adjacently disposed and in communication, the first flow channel section being disposed on a side of the second flow channel section that is remote from the first cooling plate;

the orthographic projection area of the first flow passage section on the second cooling plate is 1.5-3 times of the orthographic projection area of the second flow passage section on the side wall of the second cooling plate.

3. The temperature regulating structure according to claim 2, wherein the first flow path section includes a plurality of first sub-flow chambers, the plurality of first sub-flow chambers being arranged one by one in sequence in a height direction of the second cooling plate;

The second flow channel section comprises a plurality of second sub-flow cavities, and the second sub-flow cavities are sequentially arranged one by one along the height direction of the second cooling plate.

4. A temperature regulating structure as defined in claim 3, wherein the number of first sub-flow cavities is greater than the number of second sub-flow cavities.

5. The structure according to any one of claims 3 to 4, wherein the first sub-flow chamber has a shape and a size that are identical to the shape and the size of the second sub-flow chamber.

6. The temperature control structure according to claim 1, wherein both ends of the cooling flow passage are provided with a cooling medium inlet and a cooling medium outlet, respectively, the cooling medium inlet is provided at one end of the cooling flow passage away from the first cooling plate, and the cooling medium outlet is provided at one end of the cooling flow passage close to the first cooling plate.

7. The temperature control structure according to claim 1, wherein a heater for heating the first cooling plate is provided on the first cooling plate.

8. The temperature control structure of claim 7, wherein the second cooling plate is connected to a middle portion of the first cooling plate, and the heater is disposed in the first cooling plate and aligned with the second cooling plate.

9. The temperature control structure of claim 1, wherein a side of the first cooling plate, which is used for being attached to the battery cell, is provided with a first heat conducting pad; and/or

And a second heat conduction pad is arranged on one side of the second cooling plate, which is used for being attached to the battery cell.

10. A battery pack, comprising:

The temperature regulating structure of any one of claims 1 to 9;

the first battery cell is arranged on the first cooling plate;

The second battery cell is arranged on the first cooling plate, and the second cooling plate is positioned between the first battery cell and the second battery cell.