Temperature adjustment plate, battery pack, and electrical device

Abstract

A temperature adjustment plate, a battery pack, and an electrical device. The temperature adjustment plate comprises a body, the body having multiple first heat exchange areas suitable for being fit to different heating areas of a battery pack. The body is provided with a first flow channel, the first flow channel being suitable for circulating a heat exchange medium. The first flow channel comprises multiple first heat exchange sections and at least one first transition section, the first heat exchange sections being disposed in the first heat exchange areas, and the first transition section being disposed between first heat exchange sections of two adjacent first heat exchange areas, so as to place the first heat exchange sections in communication. A flow passing area of the first heat exchange section in any first heat exchange area is larger than the flow passing area of any first transition section.

Description

Thermostatic panels, battery packs, and electrical equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202322610864.2 and application date of September 25, 2023, and claims the priority of the above-mentioned Chinese patent application. The entire content of the above-mentioned Chinese patent application is hereby introduced into this application as a reference. Technical Field

[0003] The present application belongs to the field of battery technology, and specifically relates to a temperature regulating plate, a battery pack and an electrical device. Background Art

[0004] Temperature is a significant factor affecting battery performance and lifespan. Existing vehicle battery packs generate heat during charging and discharging, so heat exchange plates are typically installed within the pack to regulate the pack's temperature. A battery pack typically includes a battery pack, which has different heat-generating areas during charging and discharging. However, the heat exchange channels of existing heat exchange plates provide the same cooling effect across all areas, wasting energy in hot areas with less cooling demand and requiring the injection of more heat exchange medium. Furthermore, heat dissipation cannot be concentrated in areas with greater cooling demand, requiring significant energy consumption to cool the most heated areas of the battery pack to the desired temperature.

[0005] Summary of the Invention

[0006] The present application aims to solve one of the technical problems in the related art at least to a certain extent.

[0007] To this end, one object of the present application is to provide a temperature control plate.

[0008] Another object of the present application is to provide a battery pack.

[0009] Another object of the present application is to provide an electrical device.

[0010] According to a first aspect of the present application, a temperature regulating plate is provided, comprising: a main body, the main body having a plurality of first heat exchange zones suitable for cooperating with different heating areas of a battery pack, the main body being provided with a first flow channel, the first flow channel being suitable for circulating a heat exchange medium, the first flow channel comprising a plurality of first heat exchange sections and at least one first transition section, wherein the first heat exchange section is arranged in the first heat exchange zone, the first transition section is arranged between the first heat exchange sections of two adjacent first heat exchange zones to connect the first heat exchange sections, and the flow area of ​​the first heat exchange section in any one of the first heat exchange zones is larger than the flow area of ​​any one of the first transition sections.

[0011] According to the temperature regulating plate of the present application, by setting the first heat exchange section and the first transition section, the first transition section can connect the two adjacent first heat exchange sections, and the flow area of ​​the first heat exchange section is larger than the flow area of ​​the first transition section, thereby reducing the injection of the heat exchange medium and effectively reducing the energy waste of the heat exchange medium when passing through the first transition section, so that the energy of the heat exchange medium in the first flow channel can be concentrated in the first heat exchange area to exchange heat for the battery pack, effectively reducing the energy consumption of the temperature regulating plate and reducing the cost of use.

[0012] According to a second aspect of the present application, a battery pack is provided, comprising: the above-mentioned temperature regulating plate; a battery pack, and a plurality of the first heat exchange areas cooperating with different heating areas of the battery pack.

[0013] The battery pack according to the present application includes a thermostat and a battery pack. The multiple first heat exchange zones of the thermostat cooperate with different heating zones of the battery pack. Because the thermostat according to the embodiments of the present application can solve the technical problem of high energy consumption of existing thermostats, the battery pack of the present application also has the above advantages, which can reduce the injection amount of heat exchange medium, effectively reduce energy consumption, and lower the cost of use.

[0014] According to a third aspect of the present application, an electrical device is provided, comprising the above-mentioned temperature regulating plate, or the above-mentioned battery pack.

[0015] According to the electrical equipment of the present application, the electrical equipment includes a thermostat or a battery pack. Since both the thermostat and the battery pack can solve the technical problem of high energy consumption of existing thermostats, the electrical equipment of the present application also has the above advantages, which can reduce the injection amount of heat exchange medium, effectively reduce energy consumption, and lower the cost of use.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG1 is a diagram showing a distribution of heating areas of a battery pack of a battery pack according to an embodiment of the present application;

[0018] FIG2 is a schematic diagram of the overall structure of a temperature regulating plate according to an embodiment provided by the present application;

[0019] FIG3 is a schematic structural diagram of a first flow channel of a temperature regulating plate according to an embodiment provided by the present application;

[0020] FIG4 is a schematic structural diagram of a second flow channel of a temperature regulating plate according to an embodiment of the present application;

[0021] FIG5 is a partial structural cross-sectional view of a temperature regulating plate according to an embodiment provided by the present application;

[0022] FIG6 is a schematic structural diagram of a battery pack according to an embodiment of the present application;

[0023] FIG7 is a schematic diagram of an electrical device according to an embodiment of the present application;

[0024] FIG8 is a schematic diagram of an electrical device according to another embodiment of the present application. DETAILED DESCRIPTION

[0025] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0026] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0027] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0028] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0029] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0030] The temperature regulating plate 10 according to an embodiment of the present application will be described in detail below with reference to the accompanying drawings.

[0031] As shown in FIG. 1 to FIG. 5 , the temperature regulating plate 10 according to the embodiment of the present application includes a body 40 .

[0032] Specifically, the main body 40 has multiple first heat exchange zones suitable for cooperating with different heating areas of the battery pack 20. The main body 40 is provided with a first flow channel 11, which is suitable for circulating heat exchange medium. The first flow channel 11 includes multiple first heat exchange sections 111 and at least one first transition section 112, wherein the first heat exchange section 111 is arranged in the first heat exchange zone, and the first transition section 112 is arranged between the first heat exchange sections 111 of two adjacent first heat exchange zones to connect the first heat exchange sections 111. The flow area of ​​the first heat exchange section 111 in any first heat exchange zone is greater than the flow area of ​​any first transition section 112.

[0033] In other words, as shown in Figures 1 to 5 , according to the temperature regulating plate 10 of the embodiment of the present application, the temperature regulating plate 10 is primarily used to regulate the temperature of the battery pack 20 of the battery pack 100. The positive and negative terminals are generally disposed at both ends of the battery pack 20 in the first direction X. Therefore, when the battery pack 20 is charging or discharging, the battery pack 20 generates relatively severe heat in the end regions in the first direction X and the terminal body 40, resulting in the battery pack 20 forming two distinct heat generating regions (i.e., high heat generating regions 21) in the end regions in the first direction X. It should be noted that the temperature regulating plate 10 can regulate the temperature of a single battery pack 20 of the battery pack 100, or multiple battery packs 20 of the battery pack 100. The following description will be made using a single battery pack 20 as an example.

[0034] As shown in Figures 1 to 3, the thermostat 10 mainly includes a body 40, which has two first heat exchange areas adapted to the two high-heating areas 21 of the battery pack 20. The body 40 is provided with a first flow channel 11 suitable for circulating a heat exchange medium. The first flow channel 11 can provide a heat exchange medium for the vehicle through the air conditioning system. The first flow channel 11 includes two first heat exchange sections 111 and a first transition section 112, wherein the two first heat exchange sections 111 are respectively provided in different first heat exchange areas, the first transition section 112 is located between the two first heat exchange sections 111, and one of the first heat exchange sections 111 is provided with a first heat exchange medium. The first end of the hot section 111 is connected to the first liquid inlet section 113, and the first liquid inlet section 113 is provided with a first liquid inlet to facilitate the flow of heat exchange medium into the first heat exchange section 111. The second end of one first heat exchange section 111 is connected to the first end of the first transition section 112, and the second end of the first transition section 112 is connected to the first end of another first heat exchange section 111 to communicate the two first heat exchange sections 111. The second end of the other first heat exchange section 111 is connected to the first liquid outlet section 114, and the first liquid outlet section 114 is provided with a first liquid outlet to facilitate the flow of heat exchange medium out of the first heat exchange section 111. Moreover, the flow area of ​​the first heat exchange section 111 in each first heat exchange zone is larger than the flow area of ​​the first transition section 112, so that the volume of the first flow channel 11 is reduced, which can reduce the injection amount of the heat exchange medium. When the heat exchange medium filling amount is constant, the reduction in the volume of the first flow channel 11 can increase the unit volume of heat exchange medium, increase the heat exchange capacity of the first flow channel 11, and take away more heat from the battery pack 20; at the same time, the speed at which the heat exchange medium flows through the first transition section 112 is faster than the speed at which the heat exchange medium flows through the first heat exchange section 111, thereby effectively reducing the energy waste of the heat exchange medium when passing through the first transition section 112.

[0035] Therefore, according to the temperature regulating plate 10 of the present application, by setting the first heat exchange section 111 and the first transition section 112, the first transition section 112 can connect the two adjacent first heat exchange sections 111, and the flow area of ​​the first heat exchange section 111 is larger than the flow area of ​​the first transition section 112, thereby reducing the injection of the heat exchange medium and effectively reducing the energy waste of the heat exchange medium when passing through the first transition section 112, so that the energy of the heat exchange medium in the first flow channel 11 can be concentrated in the first heat exchange area to exchange heat for the battery pack 20, effectively reducing the energy consumption of the temperature regulating plate 10 and reducing the cost of use.

[0036] In some specific embodiments of the present application, the first heat exchange section 111 includes: multiple first sub-heat exchange sections 111a, the first sub-heat exchange sections 111a of two adjacent first heat exchange zones are connected through a first transition section 112, and the total flow area of ​​the multiple first sub-heat exchange sections 111a in any first heat exchange zone is greater than the flow area of ​​any first transition section 112.

[0037] That is, as shown in FIG3 , the first heat exchange section 111 may be composed of a plurality of first sub-heat exchange sections 111 a, and the first sub-heat exchange sections 111 a of two adjacent first heat exchange zones are connected via a first transition section 112. In this embodiment, the relationship between the flow area of ​​the plurality of first sub-heat exchange sections 111 a in each first heat exchange zone and the flow area of ​​the first transition section 112 includes, but is not limited to, the following situations:

[0038] Case 1: The flow area of ​​at least one first sub-heat exchange segment 111a is not less than the flow area of ​​the first transition segment 112, so that the total flow area of ​​the plurality of first sub-heat exchange segments 111a in each first heat exchange zone is greater than the flow area of ​​the first transition segment 112;

[0039] Case 2: The flow area of ​​each first sub-heat exchange segment 111a is equal to the flow area of ​​the first transition segment 112, so that the total flow area of ​​multiple first sub-heat exchange segments 111a in each first heat exchange zone is greater than the flow area of ​​the first transition segment 112.

[0040] Therefore, the temperature regulating plate 10 according to the present application can concentrate the energy of the heat exchange medium in the first flow channel 11 in the first heat exchange zone to exchange heat for the battery pack 20, thereby avoiding waste of the energy of the heat exchange medium.

[0041] According to one embodiment of the present application, the first transition section 112 includes: multiple first sub-transition sections 112a, the first heat exchange sections 111 of two adjacent first heat exchange zones are connected through multiple first sub-transition sections 112a, and the flow area of ​​the first heat exchange section 111 in any first heat exchange zone is greater than the total flow area of ​​the multiple first sub-transition sections 112a.

[0042] Specifically, as shown in FIG3 , the first transition section 112 may be composed of a plurality of first sub-transition sections 112 a , and the first heat exchange sections 111 of two adjacent first heat exchange zones are connected via the plurality of first sub-transition sections 112 a . When the number of first sub-transition sections 112a in the first transition section 112 is the same as the number of first sub-heat exchange sections 111a in the first heat exchange section 111, one end of a first sub-transition section 112a is connected to a first sub-heat exchange section 111a, and the flow area of ​​each first sub-heat exchange section 111a is greater than the flow area of ​​any first sub-transition section 112a, so that the flow area of ​​the first heat exchange section 111 is greater than the total flow area of ​​the multiple first sub-transition sections 112a; when the number of first sub-transition sections 112a in the first transition section 112 is less than the number of first sub-heat exchange sections 111a in the first heat exchange section 111, one end of a first sub-transition section 112a can be connected to multiple first sub-heat exchange sections 111a, and the flow area of ​​each first sub-heat exchange section 111a can be equal to the flow area of ​​any first sub-transition section 112a, so that the flow area of ​​the first heat exchange section 111 is greater than the total flow area of ​​the first sub-transition sections 112a.

[0043] Therefore, the temperature regulating plate 10 according to the present application can concentrate the energy of the heat exchange medium in the first flow channel 11 in the first heat exchange zone to exchange heat for the battery pack 20, thereby avoiding waste of the energy of the heat exchange medium.

[0044] In some specific embodiments of the present application, the spacing between two adjacent first sub-transition sections 112a is smaller than the spacing between two adjacent first sub-heat exchange sections 111a; and / or the number of first sub-transition sections 112a is smaller than the number of first sub-heat exchange sections 111a.

[0045] That is to say, as shown in Figure 3, the spacing between two adjacent first sub-transition sections 112a can be the same, the spacing between two adjacent first sub-heat exchange sections 111a can also be the same, and the spacing between two adjacent first sub-transition sections 112a can be smaller than the spacing between two adjacent first sub-heat exchange sections 111a, so that the energy loss of the heat exchange medium is smaller when flowing through the first sub-transition section 112a, so that the energy of the heat exchange medium in the first flow channel 11 can be concentrated in the first heat exchange area to exchange heat for the battery pack 20, thereby avoiding waste of energy of the heat exchange medium.

[0046] 3 , the number of first sub-transition sections 112a in a first transition section 112 may be smaller than the number of first sub-heat exchange sections 111a in a first heat exchange section 111. In this embodiment, the flow area of ​​the first sub-transition section 112a is the same as the flow area of ​​the first sub-heat exchange section 111a, and one end of a first sub-transition section 112a is connected to multiple first sub-heat exchange sections 111a.

[0047] According to one embodiment of the present application, the main body 40 has a second heat exchange zone suitable for cooperating with different heating zones of the battery pack 20. The second heat exchange zone is located between two adjacent first heat exchange zones. The main body 40 is provided with a second flow channel 12. The second flow channel 12 is suitable for circulating heat exchange medium. The second flow channel 12 includes a second heat exchange section 121. The second heat exchange section 121 is provided in the second heat exchange zone.

[0048] In other words, as shown in Figures 1 to 4, when the battery pack 20 is charging or discharging, the middle area of ​​the battery pack 20 in the first direction X is also a heating area (i.e., a low heating area 22). Since the heat generated by the low heating area 22 is lower than that of the high heating area 21, in order to ensure the temperature uniformity of the battery pack 20, it is necessary to independently dissipate heat from the low heating area 22 and the high heating area 21 of the battery pack 20. Based on this, the main body 40 is provided with a second heat exchange area adapted to the low heating area 22. The second heat exchange area is located between two adjacent first heat exchange areas. The main body 40 is provided with a second flow channel 12 suitable for the flow channel heat exchange medium. The second flow channel 12 includes a second heat exchange section 121 provided in the second heat exchange area. The second heat exchange section 121 can be used to exchange heat with the low heating area 22 of the battery pack 20 in the second heat exchange area, thereby ensuring the temperature uniformity of the battery pack 20.

[0049] In this embodiment, the heat exchange medium used in the first flow channel 11 and the second flow channel 12 can be provided by the vehicle's air-conditioning system. The heat exchange medium can be heated or cooled by the vehicle's air-conditioning system. The air-conditioning system can control the flow rate of the heat exchange medium entering the first flow channel 11 and the second flow channel 12, so as to facilitate the control of the first flow channel 11 and the second flow channel 12 to heat or cool the battery pack 20. The setting of the two flow channels can effectively avoid the problem of poor heat exchange effect at the end of the flow channel due to the flow channel being too long. At the same time, for the vehicle's air-conditioning system, the amount of heat exchange medium (refrigerant) filled is less, which not only saves costs, but is also more conducive to the improvement of the COP of the air-conditioning system and is more conducive to the operation of the air-conditioning system.

[0050] For example: when the battery pack 100 is discharging in a relatively low temperature environment, the first flow channel 11 and / or the second flow channel 12 can be used to heat the battery pack 20 according to actual needs to improve the performance of the battery pack 100 and improve the battery life of the battery pack 100; when the battery pack 100 is charging or discharging in a relatively high temperature environment, the first flow channel 11 and / or the second flow channel 12 can be used to cool the battery pack 20 according to actual needs to independently adjust the temperature of different areas of the battery pack 20, which can effectively avoid uneven temperature distribution of the battery pack 20 and effectively improve the service life of the battery pack 100.

[0051] For example, when the battery pack 100 is charging at a high rate or discharging at high power, the heat generation areas of the battery pack 20 differ significantly. The heat exchange medium flow rate can be preferentially distributed to the first flow channel 11 to reduce the temperature of the high-heat generation area 21, while a small amount of heat exchange medium can be distributed to the second flow channel 12. After the temperature of the high-heat generation area 21 has dropped, the flow rate of the first flow channel 11 can be reduced, and the flow rate of the second flow channel 12 can be reduced or even eliminated.

[0052] In some specific embodiments of the present application, the main body 40 is provided with a plurality of second heat exchange zones, the first heat exchange zone separates adjacent second heat exchange zones, the second flow channel 12 includes a plurality of second heat exchange sections 121 and at least one second transition section 122, wherein the second transition section 122 is provided between the second heat exchange sections 121 of two adjacent second heat exchange zones to connect the second heat exchange sections 121, and the flow area of ​​the second heat exchange section 121 in any second heat exchange zone is greater than the flow area of ​​any second transition section 122.

[0053] Specifically, as shown in Figures 1 to 4, when the battery pack 100 has multiple battery packs 20 arranged along the first direction X, the main body 40 can be provided with multiple second heat exchange zones, and the first heat exchange zone separates two adjacent second heat exchange zones so that the multiple second heat exchange zones correspond one-to-one to the low heat exchange zones of the multiple battery packs 20. The following is a specific explanation taking two second heat exchange zones as an example.

[0054] As shown in Figure 4, the second flow channel 12 includes two second heat exchange sections 121 and a second transition section 122, wherein the two second heat exchange sections 121 are respectively arranged in different second heat exchange areas, and the second transition section 122 is located between the two second heat exchange sections 121, and the first end of one of the second heat exchange sections 121 is connected to the second liquid inlet section 123, and the second liquid inlet section 123 is provided with a second liquid inlet to facilitate the flow of heat exchange medium into the second heat exchange section 121, the second end of one of the second heat exchange sections 121 is connected to the first end of the second transition section 122, and the second end of the second transition section 122 is connected to the first end of the other second heat exchange section 121 to communicate the two second heat exchange sections 121, and the second end of the other second heat exchange section 121 is connected to the second liquid outlet section 124, and the second liquid outlet section 124 is provided with a second liquid outlet to facilitate the flow of heat exchange medium out of the second heat exchange section 121. Moreover, the flow area of ​​the second heat exchange section 121 in each second heat exchange zone is larger than the flow area of ​​the second transition section 122, so that the volume of the second flow channel 12 is reduced, which can reduce the injection amount of the heat exchange medium. When the heat exchange medium filling amount is constant, the reduction in the volume of the second flow channel 12 can increase the unit volume of heat exchange medium, increase the heat exchange capacity of the second flow channel 12, and take away more heat from the battery pack 20; at the same time, the speed of the heat exchange medium flowing through the second transition section 122 is faster than the speed of the second heat exchange section 121 of the heat exchange medium flow channel, thereby effectively avoiding the waste of energy when the heat exchange medium flows through the second transition section 122, so that the energy of the heat exchange medium in the second flow channel 12 can be concentrated in the second heat exchange zone to exchange heat for the battery pack 20.

[0055] In some examples of the present application, the first transition section 112 and the second transition section 122 are respectively formed as flow channels extending along the first direction X. Compared with other extension methods, the path of the heat exchange medium flowing through the first transition section 112 and the second transition section 122 can be reduced, which can effectively reduce the energy waste of the heat exchange medium.

[0056] According to one embodiment of the present application, the second heat exchange section 121 includes: multiple second sub-heat exchange sections 121a, the second sub-heat exchange sections 121a of two adjacent second heat exchange zones are connected through a second transition section 122, and the total flow area of ​​the multiple second sub-heat exchange sections 121a in any second heat exchange zone is greater than the flow area of ​​any second transition section 122.

[0057] That is, as shown in FIG4 , the second heat exchange section 121 may be composed of a plurality of second sub-heat exchange sections 121 a, and the second sub-heat exchange sections 121 a of two adjacent second heat exchange zones are connected via a second transition section 122. In this embodiment, the relationship between the flow area of ​​the plurality of second sub-heat exchange sections 121 a in each second heat exchange zone and the flow area of ​​the second transition section 122 includes, but is not limited to, the following situations:

[0058] Case 1: The flow area of ​​at least one second sub-heat exchange segment 121a is not less than the flow area of ​​the second transition segment 122, so that the total flow area of ​​the plurality of second sub-heat exchange segments 121a in each second heat exchange zone is greater than the flow area of ​​the second transition segment 122;

[0059] Case 2: The flow area of ​​each second sub-heat exchange segment 121a is equal to the flow area of ​​the second transition segment 122, so that the total flow area of ​​multiple second sub-heat exchange segments 121a in each second heat exchange zone is greater than the flow area of ​​the second transition segment 122.

[0060] Therefore, the temperature regulating plate 10 according to the present application can concentrate the energy of the heat exchange medium in the second flow channel 12 in the second heat exchange zone to exchange heat for the battery pack 20, thereby avoiding waste of the energy of the heat exchange medium.

[0061] In some specific embodiments of the present application, the second transition section 122 includes: multiple second sub-transition sections 122a, the second heat exchange sections 121 of two adjacent second heat exchange zones are connected through multiple second sub-transition sections 122a, and the flow area of ​​the second heat exchange section 121 in any second heat exchange zone is greater than the total flow area of ​​the multiple second sub-transition sections 122a.

[0062] Specifically, as shown in FIG. 4 , the second transition section 122 may be composed of a plurality of second sub-transition sections 122 a , and the second heat exchange sections 121 of two adjacent second heat exchange zones are connected via the plurality of second sub-transition sections 122 a . When the number of second sub-transition sections 122a in the second transition section 122 is the same as the number of second sub-heat exchange sections 121a in the second heat exchange section 121, one end of a second sub-transition section 122a is connected to a second sub-heat exchange section 121a, and the flow area of ​​each second sub-heat exchange section 121a is greater than the flow area of ​​any second sub-transition section 122a, so that the flow area of ​​the second heat exchange section 121 is greater than the total flow area of ​​multiple second sub-transition sections 122a; when the number of second sub-transition sections 122a in the second transition section 122 is less than the number of second sub-heat exchange sections 121a in the second heat exchange section 121, one end of a second sub-transition section 122a can be connected to multiple second sub-heat exchange sections 121a, and the flow area of ​​each second sub-heat exchange section 121a can be equal to the flow area of ​​any second sub-transition section 122a, so that the flow area of ​​the second heat exchange section 121 is greater than the total flow area of ​​the second sub-transition sections 122a.

[0063] Therefore, the temperature regulating plate 10 according to the present application can concentrate the energy of the heat exchange medium in the second flow channel 12 in the second heat exchange zone to exchange heat for the battery pack 20, thereby avoiding waste of the energy of the heat exchange medium.

[0064] According to one embodiment of the present application, the distance between two adjacent second sub-transition sections 122a is smaller than the distance between two adjacent second sub-heat exchange sections 121a; and / or the number of second sub-transition sections 122a is smaller than the number of second sub-heat exchange sections 121a.

[0065] That is to say, as shown in Figure 4, the spacing between two adjacent second sub-transition sections 122a can be the same, the spacing between two adjacent second sub-heat exchange sections 121a can also be the same, and the spacing between two adjacent second sub-transition sections 122a can be smaller than the spacing between two adjacent second sub-heat exchange sections 121a, so that the energy loss of the heat exchange medium is smaller when flowing through the second sub-transition section 122a, so that the energy of the heat exchange medium in the second flow channel 12 can be concentrated in the second heat exchange area to exchange heat for the battery pack 20, thereby avoiding waste of energy of the heat exchange medium.

[0066] 4 , the number of second sub-transition sections 122a in a second transition section 122 may be smaller than the number of second sub-heat exchange sections 121a in a second heat exchange section 121. In this embodiment, the flow area of ​​the second sub-transition section 122a is the same as the flow area of ​​the second sub-heat exchange section 121a, and one end of a second sub-transition section 122a is connected to a plurality of second sub-heat exchange sections 121a.

[0067] In some specific embodiments of the present application, the main body 40 includes: a first plate body 13; a second plate body 14, a groove is provided on one side of the second plate body 14, the second plate body 14 is provided on the first plate body 13, and the groove cooperates with the first plate body 13 to define the first flow channel 11 and the second flow channel 12.

[0068] Specifically, as shown in Figure 5, the temperature control plate 10 is mainly composed of a first plate body 13 and a second plate body 14, wherein the second plate body 14 can be a stamping part, and a groove is stamped on one side of the second plate body 14. The cross-section of the groove can be a trapezoidal structure, and the path of the groove is the same as the path of the first flow channel 11 and the path of the second flow channel 12. The groove faces the first plate body 13, and the second plate body 14 is welded to the first plate body 13, so that the groove cooperates with the first plate body 13 to define the first flow channel 11 and the second flow channel 12, and the first plate body 13 and the second plate body 14 are welded together, while satisfying that the first flow channel 11 and the second flow channel 12 are not connected.

[0069] In this embodiment, the temperature regulating plate 10 is composed of a first plate body 13 and a second plate body 14 connected together, and has a simple structure and is easy to manufacture.

[0070] In summary, according to the temperature regulating plate 10 of the embodiment of the present application, by setting the first heat exchange section 111 and the first transition section 112, the first transition section 112 can connect the two adjacent first heat exchange sections 111, and the flow area of ​​the first heat exchange section 111 is larger than the flow area of ​​the first transition section 112, thereby reducing the injection of the heat exchange medium and effectively reducing the energy waste of the heat exchange medium when passing through the first transition section 112, so that the energy of the heat exchange medium in the first flow channel 11 can be concentrated in the first heat exchange area to exchange heat for the battery pack 20, effectively reducing the energy consumption of the temperature regulating plate 10 and reducing the cost of use.

[0071] As shown in FIG6 , an embodiment of the present application further provides a battery pack 100 comprising a thermostat 10 and a battery pack 20 as described in any of the above embodiments. The multiple first heat exchange zones of the thermostat 10 are coordinated with different heating zones of the battery pack 20. Because the thermostat 10 according to the embodiment of the present application can solve the technical problem of high energy consumption of existing thermostats, the battery pack 100 of the present application also has the aforementioned advantages, reducing the amount of heat exchange medium injected, effectively reducing energy consumption, and lowering operating costs. This embodiment will not be further described.

[0072] According to one embodiment of the present application, the battery pack 100 further includes: a frame 30 , which is disposed on one side of the temperature regulating plate 10 and cooperates with the temperature regulating plate 10 to define an accommodating cavity suitable for accommodating the battery pack 20 .

[0073] Specifically, as shown in Figure 6, a rectangular frame 30 is provided on one side of the thermostat plate 10. The thermostat plate 10 and the frame 30 can be connected together by welding, so that the thermostat plate 10 and the frame 30 define a receiving cavity. The battery pack 20 can be placed in the receiving cavity and supported by the thermostat plate 10. Compared with the prior art, the thermostat plate 10 can serve as the bottom plate of the battery pack 100, simplifying the structure of the battery pack 100, saving plate materials, improving space utilization, and facilitating the production and assembly of the battery pack 100.

[0074] According to one embodiment of the present application, as shown in FIG1 , a battery pack 20 includes a plurality of single cells 23 extending along a first direction X and arranged along a second direction Y. Electrode terminals are provided at both ends of the single cells 23 along the first direction X, so that a first heating zone 21 (the high heating zone 21 in the above embodiment) is formed at both ends of the battery pack 20 along the first direction X, and a second heating zone 22 (the low heating zone 22 in the above embodiment) is formed between the two first heating zones 21. The first heat exchange zone corresponds one-to-one with the first heating zone 25 of the battery pack 20 for heat exchange. The main body 40 further includes a second heat exchange zone that cooperates with the second heating zone 26 of the battery pack 20 for heat exchange. The second heat exchange zone is located between two adjacent first heat exchange zones 25. The main body 40 includes a second flow channel 12 suitable for circulating a heat exchange medium. The second flow channel 12 includes a second heat exchange section 121, which is provided in the second heat exchange zone, thereby more effectively reducing the energy consumption of the temperature regulating plate 10 and further avoiding energy waste of the heat exchange medium.

[0075] It should be noted that the structural strength of the temperature regulating plate 10 can be determined according to actual needs, and those skilled in the art should understand that it will not be further explained in the embodiments of the present application.

[0076] In some specific embodiments of the present application, the battery pack 20 is provided with a first temperature detection unit at both ends of the first direction X, and the first temperature detection unit can be used to detect the temperature of the battery pack 20 at both ends of the first direction X, so as to adjust the temperature of the first heat exchange section 111 according to the detected temperature; the battery pack 20 is provided with a second temperature detection unit in the middle of the first direction X, and the second temperature detection unit can be used to detect the temperature of the battery pack 20 in the middle of the first direction X, so as to adjust the temperature of the second heat exchange section 121 according to the detected temperature.

[0077] In one example of the present application, the first liquid outlet is provided with a third temperature detection unit to detect the temperature of the heat exchange medium flowing out of the first flow channel 11, and the second liquid outlet is provided with a fourth temperature detection unit to detect the temperature of the heat exchange medium flowing out of the second flow channel 12.

[0078] As shown in Figures 7 and 8, an embodiment of the present application further provides an electrical device 50. The electrical device 50 can be a vehicle or other device, and the electrical device 50 includes the thermostat 10 or battery pack 100 described in any of the above embodiments. Because the thermostat 10 and battery pack 100 according to the embodiments of the present application can both solve the technical problem of high energy consumption of existing thermostats, the electrical device 50 of the present application also has the above advantages, can reduce the injection amount of heat exchange medium, and effectively reduce energy consumption and lower the cost of use. This embodiment will not be described in detail.

[0079] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A temperature regulating plate (10), comprising: A body (40), the body (40) having a plurality of first heat exchange areas suitable for cooperating with different heat-generating areas of a battery pack (20), the body (40) being provided with a first flow channel (11), the first flow channel (11) being suitable for circulating a heat exchange medium, the first flow channel (11) comprising a plurality of first heat exchange sections (111) and at least one first transition section (112), The first heat exchange section (111) is arranged in the first heat exchange zone, the first transition section (112) is arranged between the first heat exchange sections (111) of two adjacent first heat exchange zones to connect the first heat exchange sections (111), and the flow area of ​​the first heat exchange section (111) in any one of the first heat exchange zones is greater than the flow area of ​​any one of the first transition sections (112).

2. The temperature control plate (10) according to claim 1, wherein: The first heat exchange section (111) comprises: A plurality of first sub-heat exchange sections (111a), the first sub-heat exchange sections (111a) of two adjacent first heat exchange zones are connected via the first transition section (112), and the total flow area of ​​the plurality of first sub-heat exchange sections (111a) in any one of the first heat exchange zones is greater than the flow area of ​​any one of the first transition sections (112).

3. The temperature control plate (10) according to claim 2, wherein: The first transition section (112) comprises: A plurality of first sub-transition sections (112a), the first heat exchange sections (111) of two adjacent first heat exchange zones are connected via the plurality of first sub-transition sections (112a), and the flow area of ​​the first heat exchange section (111) in any one of the first heat exchange zones is greater than the total flow area of ​​the plurality of first sub-transition sections (112a).

4. The temperature control plate (10) according to claim 3, wherein: The distance between two adjacent first sub-transition sections (112a) is smaller than the distance between two adjacent first sub-heat exchange sections (111a); And / or the number of the first sub-transition sections (112a) is less than the number of the first sub-heat exchange sections (111a).

5. The temperature regulating plate (10) according to any one of claims 1 to 4, wherein: The body (40) has a second heat exchange area suitable for cooperating with different heating areas of the battery pack (20), the second heat exchange area is located between two adjacent first heat exchange areas, the body (40) is provided with a second flow channel (12), the second flow channel (12) is suitable for circulating a heat exchange medium, the second flow channel (12) includes a second heat exchange section (121), and the second heat exchange section (121) is arranged in the second heat exchange area.

6. The temperature control plate (10) according to claim 5, wherein: The body (40) is provided with a plurality of the second heat exchange areas, the first heat exchange areas separate adjacent second heat exchange areas, the second flow channel (12) comprises a plurality of the second heat exchange sections (121) and at least one second transition section (122), The second transition section (122) is arranged between the second heat exchange sections (121) of two adjacent second heat exchange zones to connect the second heat exchange sections (121), and the flow area of ​​the second heat exchange section (121) in any one of the second heat exchange zones is larger than the flow area of ​​any one of the second transition sections (122).

7. The temperature control plate (10) according to claim 6, wherein: The second heat exchange section (121) comprises: A plurality of second sub-heat exchange segments (121a), the second sub-heat exchange segments (121a) of two adjacent second heat exchange zones are connected via the second transition segment (122), and the total flow area of ​​the plurality of second sub-heat exchange segments (121a) in any one of the second heat exchange zones is greater than the flow area of ​​any one of the second transition segments (122).

8. The temperature control plate (10) according to claim 7, wherein: The second transition section (122) comprises: A plurality of second sub-transition sections (122a), the second heat exchange sections (121) of two adjacent second heat exchange zones are connected via the plurality of second sub-transition sections (122a), and the flow area of ​​the second heat exchange section (121) in any one of the second heat exchange zones is greater than the total flow area of ​​the plurality of second sub-transition sections (122a).

9. The temperature control plate (10) according to claim 8, wherein: The distance between two adjacent second sub-transition sections (122a) is smaller than the distance between two adjacent second sub-heat exchange sections (121a); And / or the number of the second sub-transition sections (122a) is less than the number of the second sub-heat exchange sections (121a).

10. The temperature regulating plate (10) according to any one of claims 5 to 9, wherein: The body (40) comprises: A first plate (13); A second plate body (14), wherein a groove is provided on one side of the second plate body (14), the second plate body (14) is arranged on the first plate body (13), and the groove cooperates with the first plate body (13) to define the first flow channel (11) and the second flow channel (12).

11. A battery pack (100), wherein: include: The temperature regulating plate (10) according to any one of claims 1 to 10; A battery pack (20), wherein a plurality of the first heat exchange areas cooperate with different heating areas of the battery pack (20).

12. The battery pack (100) according to claim 11, wherein: Also includes: A frame (30), the frame (30) being arranged on one side of the temperature regulating plate (10) and cooperating with the temperature regulating plate (10) to define a receiving cavity suitable for receiving the battery pack (20).

13. The battery pack (100) according to claim 11, wherein: The battery pack (20) comprises a plurality of single batteries (23) extending along a first direction and arranged along a second direction, and electrode terminals are provided at both ends of the single batteries (23) along the first direction, so that a first heating area (21) is formed at both ends of the battery pack (20) along the first direction, and a second heating area (22) is formed between the two first heating areas (21); The first heat exchange zone and the first heating zone (25) of the battery pack (20) are in one-to-one correspondence for heat exchange. The main body (40) also has a second heat exchange zone for heat exchange with the second heating zone (26) of the battery pack (20). The second heat exchange zone is located between two adjacent first heat exchange zones (25). The main body (40) is provided with a second flow channel (12). The second flow channel (12) is suitable for circulating a heat exchange medium. The second flow channel (12) includes a second heat exchange section (121). The second heat exchange section (121) is provided in the second heat exchange zone.

14. An electrical device (50), wherein: It comprises a temperature regulating plate (10) according to any one of claims 1 to 13, or a battery pack (100) according to claim 11 or 12.

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