Direct cooling plate assembly, battery system and vehicle

Abstract

The utility model relates to a direct cooling plate assembly, a battery system and a vehicle. The direct cooling plate assembly comprises a plate body and a heating piece. An accommodating cavity and a liquid cooling flow channel which are spaced from each other are formed in the plate body; the liquid cooling flow channel is filled with cooling liquid, and the cooling liquid can circularly flow in the liquid cooling flow channel. The plate body is also provided with a heat conducting surface which is used for conducting heat to the battery cell module. The heating piece is arranged in the containing cavity and connected with the plate body, and the heating piece is in heat conduction with the heat conduction face. The method is used for adjusting the temperature of the vehicle battery cell.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a direct cooling plate assembly, a battery system and a vehicle. Background Art

[0002] Electric vehicles are usually powered by battery packs. The working performance of battery packs is easily affected by temperature. Therefore, a temperature regulating device is usually set in the battery pack so that when the temperature is high, the temperature of the battery pack can be lowered by the temperature regulating device, and when the temperature is low, the temperature of the battery pack can be increased by the temperature regulating device.

[0003] In the related art, the temperature regulating device usually includes a direct cooling plate and a heating film. Generally, a direct cooling plate is attached below the battery cell module of the battery pack, and a heating film is attached between the direct cooling plate and the battery cell module, and a heating film is also attached between multiple battery cells. A water channel is provided on the direct cooling plate, and when the battery cell module needs to be cooled, the battery cell module is cooled through the water channel. When the battery cell module needs to be heated, the battery cell module is heated through the heating film.

[0004] In the above-mentioned temperature regulating device, when disassembling and assembling the battery cell module, the heating film is likely to move and wrinkle, which may cause the temperature of the wrinkles on the heating film to be too high. In this way, when the heating film is used to heat the battery cell module, different positions of the battery cell module will be heated unevenly, resulting in heat out of control inside the battery cell module, damaging the battery cell module, and causing consequences such as spontaneous combustion of the battery cell module. Utility Model Content

[0005] The present application provides a direct cooling plate assembly, a battery system and a vehicle to improve the stability and safety of the battery module. The technical solution adopted by the utility model is as follows:

[0006] According to the first aspect of the present application, there is provided a direct cooling plate assembly, comprising a plate body and a heating element. A mutually spaced accommodation cavity and a liquid cooling channel are formed in the plate body. The liquid cooling channel is filled with a coolant, and the coolant can circulate in the liquid cooling channel. The plate body also has a heat conducting surface, which is used to conduct heat to the battery cell module. The heating element is arranged in the accommodation cavity and connected to the plate body, and the heating element is thermally conductive to the heat conducting surface.

[0007] According to the above technical means, when the battery module needs to be cooled, the coolant in the liquid cooling channel can absorb the heat on the battery module, thereby reducing the temperature of the battery module to prevent the internal temperature of the battery module from being too high. When the battery module needs to be heated, the heating element can be heated, and the heat emitted by the heating element can be conducted to the heat conductive surface, and then to the battery module, thereby increasing the temperature of the battery module to achieve the heating effect of the battery module.

[0008] In this way, by setting a liquid cooling channel and a heating element in the plate body of the direct cooling plate assembly, the battery module can be cooled or heated to keep the battery module at a normal working temperature. In this way, there is no need to set a heating film between the battery module and the plate body of the direct cooling plate assembly and between the battery modules, so that the normal operation of the battery module can be guaranteed, thereby avoiding wrinkles in the heating film, reducing the impact on the battery module, and improving the stability and safety of the battery module during operation.

[0009] In a possible embodiment, a plurality of accommodating cavities are formed in the plate body, and the plurality of accommodating cavities are arranged at intervals along a first direction, and the first direction is perpendicular to the thickness direction of the plate body. The direct cooling plate assembly includes a plurality of heating elements, and the plurality of heating elements correspond to the plurality of accommodating cavities one by one, and one heating element is arranged in one accommodating cavity.

[0010] According to the above technical means, since the multiple heating elements are arranged at intervals along the first direction, the heat emitted by the multiple heating elements can be conducted to a larger range on the heat-conducting surface along the first direction, thereby improving the heat-conducting effect of the heat-conducting surface and the battery cell module to ensure the operating temperature of the battery cell module, thereby further improving the stability and safety of the battery cell module during operation.

[0011] In a possible implementation, the accommodating cavity extends along a second direction, the second direction is perpendicular to the thickness direction of the plate body and perpendicular to the first direction. The heating element includes a heating plate, the thickness direction of the heating plate is consistent with the thickness direction of the plate body, and the heating plate extends along the second direction.

[0012] According to the above-mentioned technical means, since the accommodating cavity extends along the second direction and the heating plate extends along the second direction, the heat emitted by the multiple heating plates can be more evenly conducted to the heat conductive surface along the second direction, so that the heating of the battery cell module is more evenly achieved, so as to ensure the operating temperature of the battery cell module, thereby further improving the stability and safety of the battery cell module during operation.

[0013] In a possible implementation manner, the liquid cooling channel is arranged around the accommodating cavity.

[0014] According to the above technical means, the range of heat that the liquid-cooling channel can absorb and the range of heat that the heating element can heat match, so that the cooling or heating effect of the liquid-cooling channel and the heating element on the battery module can be guaranteed.

[0015] In a possible embodiment, the direct cooling plate assembly further includes a heat insulating member. The heat insulating member covers the side wall surface of the heating member in a first direction, and the first direction is perpendicular to the thickness direction of the plate body. And / or, the heat insulating member covers the side wall surface of the heating member in a second direction, and the second direction is perpendicular to the thickness direction of the plate body and perpendicular to the first direction, and the first direction is perpendicular to the thickness direction of the plate body. And / or, the heat insulating member covers the side surface of the heating member away from the heat conducting surface.

[0016] According to the above technical means, when the battery cell module is heated by the heating element, most of the heat emitted by the heating element is transferred to the heat-conducting surface of the child through the heat-insulating effect of the heat-insulating element. This can reduce the amount of heat emitted by the heating element that is absorbed by the plate and the coolant, thereby improving the heating effect of the heating element on the battery cell module.

[0017] In a possible embodiment, the plate body includes a bottom plate and a cover plate. A flow channel groove and a mounting groove are formed on one side surface of the bottom plate along the thickness direction of the bottom plate. The cover plate is located on a side of the mounting groove away from the groove bottom of the mounting groove and is connected to the bottom plate. The cover plate blocks the groove of the flow channel to form a liquid cooling flow channel after the blockage of the flow channel groove, and the cover plate blocks the groove of the mounting groove to form a receiving cavity after the blockage of the mounting groove.

[0018] According to the above technical means, through the cooperation of the base plate and the cover plate, it is only necessary to open the flow channel groove and the installation groove on the base plate, and connect the cover plate and the base plate, so that the liquid cooling flow channel and the accommodating cavity can be formed on the base plate and the cover plate, so that the liquid cooling flow channel and the accommodating cavity can be easily processed on the plate body.

[0019] In a possible implementation manner, the heating element is snap-fitted into the mounting groove.

[0020] According to the above technical means, when installing the heating element, the heating element can be directly clamped in the installation groove to fix the heating element and the base plate, and then the cover plate and the base plate are connected to fix the heating element in the accommodating cavity, thereby realizing the connection between the heating element and the plate body.

[0021] In one possible embodiment, the thermal insulation element comprises aerogel.

[0022] According to the above technical means, since aerogel has good thermal insulation effect and certain fire resistance, aerogel can improve the working stability of the direct cooling plate assembly, and aerogel can be adjusted by cutting, trimming, etc., which facilitates the assembly of the direct cooling plate assembly.

[0023] According to a second aspect of the present application, a battery system is provided, comprising the above-mentioned direct cooling plate assembly and a battery cell module.

[0024] According to a third aspect of the present application, a vehicle is provided, comprising the above-mentioned engine assembly.

[0025] Therefore, the above technical features of the present application have the following beneficial effects:

[0026] (1) The present application can heat the battery module through the plate body by setting the heating element and the accommodating cavity, so that the battery module is at a normal working temperature. In this way, the normal operation of the battery module can be ensured without setting a heating film, thereby avoiding the influence of wrinkles on the battery module, thereby improving the stability and safety of the battery module during operation.

[0027] (2) The present application can improve the heat conduction effect between the heat conductive surface and the battery cell module by providing multiple heating elements.

[0028] (3) The present application provides a receiving cavity and a heating plate, so that the heating of the battery cell module in the second direction can be more uniform.

[0029] (4) The present application can ensure the cooling or heating effect of the liquid cooling channel and the heating element on the battery module by setting the liquid cooling channel and the accommodating cavity.

[0030] (5) The present application can improve the heating effect of the heating element on the battery cell module by setting a heat insulating element.

[0031] (6) The present application can facilitate the processing of liquid cooling channels and accommodating cavities on the plate body through the arrangement of the plate body.

[0032] (7) The present application facilitates the installation of the heating element by clamping the heating element in the installation groove, so that the heating element and the plate body are connected.

[0033] (8) The present application adopts aerogel as a thermal insulation component, which can improve the working stability of the direct cooling plate assembly and facilitate the assembly of the direct cooling plate assembly.

[0034] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application, and do not constitute an improper limitation on the present application.

[0036] Figure 1 is a schematic diagram of the external structure of a battery system according to an exemplary embodiment;

[0037] Figure 2 is a schematic diagram of the external structure of a heating element and a refrigerant circuit according to an exemplary embodiment;

[0038] Figure 3 is a schematic diagram of an internal structure of a direct cooling plate assembly according to an exemplary embodiment;

[0039] Figure 4 is another schematic diagram of the internal structure of a direct cooling plate assembly according to an exemplary embodiment;

[0040] Figure 5 is another schematic diagram of the internal structure of a direct cooling plate assembly according to an exemplary embodiment.

[0041] Among them, 100-battery system; 110-direct cooling plate assembly; 10-plate body; 1-bottom plate; 11-mounting groove; 12-flow channel groove; 2-cover plate; 3-liquid cooling flow channel; 31-cooling flow channel; 4-heating element; 5-insulating element; 120-battery cell module; M-accommodating cavity; K-thermal conductive surface; X-first direction; Y-second direction. DETAILED DESCRIPTION

[0042] In order to enable ordinary persons in the art to better understand the technical solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0043] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0044] Electric vehicles are usually powered by battery packs. The working performance of battery packs is easily affected by temperature. Therefore, a temperature regulating device is usually set in the battery pack so that when the temperature is high, the temperature of the battery pack can be lowered by the temperature regulating device, and when the temperature is low, the temperature of the battery pack can be increased by the temperature regulating device.

[0045] In the related art, the temperature regulating device usually includes a direct cooling plate and a heating film. Generally, a direct cooling plate is attached below the battery cell module of the battery pack, and a heating film is attached between the direct cooling plate and the battery cell module, and a heating film is also attached between multiple battery cells. A water channel is provided on the direct cooling plate, and when the battery cell module needs to be cooled, the battery cell module is cooled through the water channel. When the battery cell module needs to be heated, the battery cell module is heated through the heating film.

[0046] In the above-mentioned temperature regulating device, when disassembling and assembling the battery cell module, the heating film is likely to move and wrinkle, which may cause the temperature of the wrinkles on the heating film to be too high. In this way, when the heating film is used to heat the battery cell module, different positions of the battery cell module will be heated unevenly, resulting in heat out of control inside the battery cell module, damaging the battery cell module, and causing consequences such as spontaneous combustion of the battery cell module.

[0047] Based on this, the present application provides a vehicle, which includes a vehicle body and a battery system. The battery system is installed on the vehicle body to provide power for the vehicle.

[0048] Specifically, Figure 1 As shown, the battery system 100 includes a direct cooling plate assembly 110 and a battery cell module 120. The direct cooling plate assembly 110 has a heat-conducting surface K, and the battery cell module 120 is attached to the heat-conducting surface K. The heat-conducting surface K is used to conduct heat with the battery cell module 120. Specifically, the battery system 100 also includes a box body, and a receiving space is formed inside the box body. The direct cooling plate assembly 110 is arranged in the receiving space, and the side surface of the direct cooling plate assembly 110 opposite to the heat-conducting surface K is attached to the inner wall of the box body. Among them, the battery cell module 120 includes a plurality of battery cells, and the battery cells are used to store electrical energy. When the user drives the vehicle, the battery cells can release the electrical energy to provide power for the vehicle.

[0049] In some embodiments, Figure 1 , Figure 2 As shown, the direct cooling plate assembly 110 includes a plate body 10, and a liquid cooling channel 3 is formed in the plate body 10. The liquid cooling channel 3 is filled with a coolant, and the coolant can circulate in the liquid cooling channel 3. A heat conducting surface K is formed on the plate body 10.

[0050] Specifically, Figure 1 , Figure 3 As shown, the plate body 10 includes a bottom plate 1 and a cover plate 2 , and a flow channel groove 12 is formed on one side surface of the bottom plate 1 along the thickness direction of the bottom plate 1 .

[0051] The cover plate 2 is located at a side of the notch of the flow channel 12 away from the groove bottom of the flow channel 12, and is connected to the bottom plate 1. The cover plate 2 blocks the notch of the flow channel 12, so that the blocked flow channel 12 forms a liquid cooling flow channel 3. In this way, through the cooperation of the bottom plate 1 and the cover plate 2, it is only necessary to open the flow channel 12 on the bottom plate 1 and connect the cover plate 2 and the bottom plate 1, so that the liquid cooling flow channel 3 can be formed on the bottom plate 1 and the cover plate 2, so that the liquid cooling flow channel 3 can be easily processed on the plate body 10.

[0052] It can be understood that the heat conducting surface K is a side surface of the plate body 10 in the thickness direction, that is, the heat conducting surface K can be a side surface of the cover plate 2 away from the bottom plate 1 or a side surface of the bottom plate 1 away from the cover plate 2 .

[0053] Exemplarily, the coolant may be glycerin or alcohol.

[0054] Exemplarily, the coolant may be water, and in this case, the direct cooling plate assembly 110 cools the battery cell module 120 by water cooling.

[0055] In this way, when the battery cell module 120 needs to be cooled, the coolant in the liquid cooling channel 3 can absorb the heat on the battery cell module 120 , thereby reducing the temperature of the battery cell module 120 to achieve the cooling function of the direct cooling plate assembly 110 .

[0056] In some embodiments, Figure 2 , Figure 3 As shown, the direct cooling plate assembly 110 further includes a heating element 4. A receiving cavity M spaced apart from the liquid cooling channel 3 is formed in the plate body 10, and the heating element 4 is disposed in the receiving cavity M and connected to the plate body 10, and the heating element 4 is thermally connected to the heat conducting surface K.

[0057] Through the above arrangement, when the battery cell module 120 needs to be heated, the heating element 4 can be made to generate heat, and the heat emitted by the heating element 4 can be conducted to the heat conductive surface K, and then to the battery cell module 120, so that the temperature of the battery cell module 120 is increased to achieve the heating effect on the battery cell module 120.

[0058] In this way, by providing the liquid cooling channel 3 and the heating element 4 in the plate body 10 of the direct cooling plate assembly 110, the battery module 120 can be cooled or heated so that the battery module 120 is at a normal working temperature. In this way, it is not necessary to provide a heating film between the battery module 120 and the plate body 10 of the direct cooling plate assembly 110 and between the battery modules 120, so that the normal operation of the battery module 120 can be ensured, thereby avoiding wrinkles in the heating film, reducing the impact on the battery module 120, and improving the stability and safety of the battery module 120 during operation.

[0059] Furthermore, since the heating element 4 is disposed in the accommodating cavity M, the battery cell module 120 can be directly attached to the heat conductive surface K. Specifically, when the battery cell module 120 and the direct cooling plate assembly 110 are installed in the box of the battery system 100, the direct cooling plate assembly 110 can be first placed on the side wall of the box close to the bottom of the vehicle, so that the upper cover is located above the bottom plate 1, and then structural glue is laid on it, and then the battery cell module 120 is placed on top of the upper cover, and the structural glue is squeezed between the battery cell module 120 and the upper cover, so that the structural glue is evenly laid between the upper cover and the battery cell module 120.

[0060] In this way, compared with setting a heating film between the direct cooling plate assembly 110 and the battery cell module 120, it is possible to avoid the problem of uneven glue pressing caused by the structural adhesive being blocked by the heating film when the battery cell module 120 and the direct cooling plate assembly 110 squeeze the structural adhesive, so that the direct cooling plate assembly 110 and the battery cell module 120 can be fixed together more stably.

[0061] In addition, the assembly of the direct cooling plate assembly 110 and the installation of the heating film in the related art are carried out in different places. Since the heating element 4 is arranged in the accommodating cavity M, the setting of the heating element 4 is completed when processing the direct cooling plate assembly 110. Compared with setting the heating film between the direct cooling plate assembly 110 and the battery module 120, and pasting the heating film between the batteries, the installation of the heating element 4 can be directly completed by the staff who process the direct cooling plate assembly 110 when processing the direct cooling plate assembly 110. This can reduce the number of staff required for processing the direct cooling plate assembly 110 and the battery module 120, and simplify the process flow.

[0062] Specifically, in some embodiments, Figure 3 As shown, a mounting groove 11 spaced apart from the flow channel 12 is formed on one side surface of the bottom plate 1, and the cover plate 2 blocks the notch of the mounting groove 11 so that the blocked mounting groove 11 forms a receiving cavity M.

[0063] In this way, through the cooperation of the base plate 1 and the cover plate 2, it is only necessary to open the installation groove 11 on the base plate 1 and connect the cover plate 2 and the base plate 1 to form the accommodating cavity M between the base plate 1 and the cover plate 2, so that it is convenient to process the accommodating cavity M on the plate body 10.

[0064] In some embodiments, the heating element 4 is snapped into the mounting groove 11. In this way, when installing the heating element 4, the heating element 4 can be directly snapped into the mounting groove 11 to fix the heating element 4 and the bottom plate 1, and then the cover plate 2 and the bottom plate 1 are connected to fix the heating element 4 in the accommodating cavity M, thereby realizing the connection between the heating element 4 and the plate body 10.

[0065] Exemplarily, the heating element 4 can be completely located in the installation groove 11. At this time, the side surface of the cover plate 2 close to the base plate 1 is flat, and the side surface of the cover plate 2 close to the base plate 1 is fitted with the side surface of the base plate 1 where the installation groove 11 is located to form a accommodating cavity M.

[0066] Exemplarily, the heating element 4 can be partially located inside the mounting groove 11 and another part located outside the mounting groove 11. An avoidance groove is opened on the surface of the cover plate 2 on one side close to the base plate 1. After the cover plate 2 is connected to the base plate 1, the mounting groove 11 is buckled with the avoidance groove to form a accommodating cavity M.

[0067] In some embodiments, Figure 3As shown, a plurality of accommodating cavities M are formed in the plate body 10, and the plurality of accommodating cavities M are arranged along a first direction ( Figure 2 The first direction is perpendicular to the thickness direction of the plate body 10.

[0068] The direct cooling plate assembly 110 includes a plurality of heating elements 4 , and the plurality of heating elements 4 correspond to a plurality of accommodating cavities M one by one, and one heating element 4 is disposed in one accommodating cavity M.

[0069] In this way, since the multiple heating elements 4 are arranged at intervals along the first direction, the heat emitted by the multiple heating elements 4 can be conducted to a larger range on the thermal conductive surface K along the first direction, thereby improving the thermal conductivity of the thermal conductive surface K and the battery cell module 120, so as to ensure the operating temperature of the battery cell module 120, thereby further improving the stability and safety of the battery cell module 120 during operation.

[0070] In some examples, multiple accommodating cavities K are arranged from one end of the plate body 10 in the first direction to the other end of the plate body 10 in the first direction, and along the first direction, the spacing between any two adjacent accommodating cavities M is a, and the multiple spacings a between the multiple accommodating cavities M are equal in size.

[0071] In this way, along the first direction, the multiple accommodating cavities M can be more evenly arranged in the plate body 10, so that the multiple heating elements 4 in the multiple accommodating cavities M can heat the battery cell module 120 more evenly, thereby improving the heating effect on the battery cell module 120.

[0072] On this basis, in some embodiments, such as Figure 2 , Figure 4 As shown, the accommodating cavity M extends along the second direction, and the second direction is perpendicular to the thickness direction of the plate body 10 and perpendicular to the first direction.

[0073] The heating element 4 includes a heating plate, the thickness direction of the heating plate is consistent with the thickness direction of the plate body 10, and the heating plate extends along the second direction.

[0074] It can be understood that, under the premise of ensuring the spatial setting of the liquid cooling channel 3, along the second direction, the accommodating cavity M and the heating element 4 should be extended as long as possible, so that the size of the accommodating cavity M is as close as possible to the size of the heating element 4 and the size of the plate body 10, so that the heat dissipated by the multiple heating elements 4 can be more evenly dissipated to the heat conducting surface K.

[0075] Through the above-mentioned arrangement, since the accommodating cavity M extends along the second direction and the heating plate extends along the second direction, the heat emitted by the multiple heating plates can be more evenly conducted to the heat-conducting surface K along the second direction, so that the battery cell module 120 is heated more evenly to ensure the operating temperature of the battery cell module 120, thereby further improving the stability and safety of the battery cell module 120 during operation.

[0076] Furthermore, since the thickness direction of the heating plate is consistent with the thickness direction of the plate body 10, most of the heat emitted by the heating plate will be conducted along the thickness direction of the plate body 10. In this way, the amount of heat emitted by the heating element 4 transmitted in a direction perpendicular to the thickness of the plate body 10 can be reduced, thereby improving the conduction effect of the heat emitted by the heating element 4 to the heat conduction surface K, thereby improving the utilization rate of the heat emitted by the heating element 4, and further improving the heating effect of the heating element 4 on the battery module 120.

[0077] In some examples, the heating sheet is a silicone heating sheet, and the surface area of ​​the silicone heating sheet facing the upper cover is a, a=35 square centimeters, so as to ensure that the multiple silicone heating sheets can have sufficient heating area, thereby ensuring the heating effect of the multiple silicone heating sheets on the battery module 120.

[0078] On this basis, in some examples, the power of a silicone heating sheet is greater than or equal to 20 W to ensure that the multiple silicone heating sheets can emit enough heat to heat the battery module 120 .

[0079] Since the working principle of the silicone heating sheet is to convert electrical energy into thermal energy to heat the battery module 120 , the silicone heating sheet needs to be powered on.

[0080] In some examples, the battery system 100 further includes a wiring harness, a wiring channel is formed on the board 10, the wiring channel is spaced apart from the liquid cooling channel 3, one end of the wiring channel is connected to the outside of the board 10, and the other end of the wiring channel is respectively connected to a plurality of accommodating cavities M. The wiring harness passes through the wiring channel and extends into the plurality of accommodating cavities M, and is respectively connected to a plurality of silicone heating sheets. Specifically, the size of the wiring harness is 3 mm.

[0081] The battery system 100 further includes an expansion beam and a power supply device, wherein the expansion beam is used to fix the battery module 120, and the power supply device is used to supply power to the silicone heating sheet. An avoidance gap is provided on the expansion beam, and the wiring harness passes through the avoidance gap and is electrically connected to the power supply device, so that power is supplied to the multiple silicone heating sheets through the power supply device, so that the multiple silicone heating sheets heat the battery module 120.

[0082] In some embodiments, the liquid cooling channel 3 is disposed around the accommodating cavity M. Specifically, the liquid cooling channel 3 is disposed around the accommodating cavity M in the thickness direction of the plate body 10 .

[0083] It can be understood that when the direct cooling plate assembly 110 includes a plurality of heating elements 4, the liquid cooling channel 3 is disposed around the plurality of heating elements 4. Specifically, Figure 2 As shown, along the first direction (the X direction shown in the figure), the liquid cooling channel 3 forms a plurality of cooling channels 31, and the axial direction of the cooling channel 31 is consistent with the second direction.

[0084] The plurality of cooling channels 31 are arranged at intervals. The plurality of accommodating chambers M are located between the plurality of cooling channels 31 . For any accommodating chamber M, the accommodating chamber M is located between two adjacent cooling channels 31 .

[0085] It can be understood that the multiple cooling channels 31 are connected together to ensure the normal flow of the coolant among the multiple cooling channels.

[0086] For example, along the first direction, only one cooling channel 31 may be provided between any two adjacent accommodating chambers M, or multiple cooling channels 31 may be provided. In this way, the range of heat absorption of the liquid cooling channel 3 and the range of heating of the heating element 4 match each other, so that the cooling or heating effect of the liquid cooling channel 3 and the heating element 4 on the battery module 120 can be ensured.

[0087] In order to improve the utilization rate of the heat emitted by the heating element 4, in some embodiments, as Figure 5 As shown, the direct cooling plate assembly 110 further includes a heat insulating member 5. The heat insulating member 5 covers the side wall surface of the heating member 4 in the first direction.

[0088] Exemplarily, the thermal insulation member 5 includes aerogel. Since aerogel has good thermal insulation effect and certain fireproof performance, the setting of aerogel can improve the working stability of the direct cooling plate assembly 110, and the aerogel can be adjusted by cutting, trimming, etc., which facilitates the setting of the thermal insulation member 5.

[0089] Exemplarily, the thermal insulation element 5 may also include a film, plastic, etc.

[0090] In this way, when the battery cell module 120 is heated by the heating element 4, since the thermal insulation element 5 covers the side wall surface of the heating element 4 in the first direction, most of the heat dissipated by the heating element 4 will be blocked by the thermal insulation element 5 when it is conducted along the first direction. This can reduce the amount of heat dissipated by the heating element 4 that is absorbed by the plate 10 and the coolant, thereby improving the heating effect of the heating element 4 on the battery cell module 120.

[0091] In some embodiments, Figure 4 As shown, the heat insulating member 5 covers the side wall surface of the heating member 4 in the second direction.

[0092] In this way, when the battery cell module 120 is heated by the heating element 4, since the thermal insulation element 5 covers the side wall surface of the heating element 4 in the second direction, most of the heat dissipated by the heating element 4 will be blocked by the thermal insulation element 5 when it is conducted along the second direction. This can reduce the amount of heat dissipated by the heating element 4 that is absorbed by the plate 10 and the coolant, thereby improving the heating effect of the heating element 4 on the battery cell module 120.

[0093] In some embodiments, Figure 5 As shown, the heat insulating element 5 covers the surface of the heating element 4 facing away from the heat conducting surface K.

[0094] In this way, when the battery cell module 120 is heated by the heating element 4, since the thermal insulation element 5 covers the surface of the heating element 4 facing away from the heat conducting surface K, most of the heat emitted by the heating element 4 will be conducted toward the direction close to the heat conducting surface K. This can improve the conduction effect of the heat emitted by the heating element 4 to the heat conducting surface K, thereby improving the heating effect of the heating element 4 on the battery cell module 120.

[0095] In some examples, such as Figure 4 , Figure 5 As shown, the heating element 4 is entirely located in the mounting groove 11 , the heat insulating element 5 is located between the inner peripheral wall of the mounting groove 11 and the heating element 4 , and the heat insulating element 5 abuts against the inner peripheral wall of the mounting groove 11 and the heating element 4 to achieve the snap connection between the heating element 4 and the mounting groove 11 .

[0096] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A direct cooling plate assembly (110), characterized in that: include: A plate body (10), wherein a mutually spaced accommodation cavity (M) and a liquid cooling channel (3) are formed in the plate body (10); the liquid cooling channel (3) is filled with a cooling liquid, and the cooling liquid can circulate in the liquid cooling channel (3); the plate body (10) also has a heat conducting surface (K), and the heat conducting surface (K) is used to conduct heat to the battery core module (120); A heating element (4) is disposed in the accommodating cavity (M) and connected to the plate body (10); the heating element (4) is thermally connected to the heat conducting surface (K).

2. The direct cooling plate assembly (110) according to claim 1, characterized in that: A plurality of the accommodating cavities (M) are formed in the plate body (10), and the plurality of the accommodating cavities (M) are arranged at intervals along a first direction, wherein the first direction is perpendicular to a thickness direction of the plate body (10); The direct cooling plate assembly (110) comprises a plurality of heating elements (4), the plurality of heating elements (4) corresponding one-to-one to a plurality of accommodating cavities (M), and one heating element (4) being arranged in one accommodating cavity (M).

3. The direct cooling plate assembly (110) according to claim 2, characterized in that: The accommodating cavity (M) extends along a second direction, wherein the second direction is perpendicular to the thickness direction of the plate body (10) and perpendicular to the first direction; The heating element (4) comprises a heating plate, the thickness direction of the heating plate is consistent with the thickness direction of the plate body (10), and the heating plate extends along the second direction.

4. The direct cooling plate assembly (110) according to any one of claims 1 to 3, characterized in that: The liquid cooling channel (3) is arranged around the accommodating cavity (M).

5. The direct cooling plate assembly (110) according to any one of claims 1 to 3, characterized in that: The direct cooling plate assembly (110) further includes a heat insulating member (5); The heat insulating element (5) covers the side wall surface of the heating element (4) in a first direction, wherein the first direction is perpendicular to the thickness direction of the plate body (10); And / or, the heat insulating element (5) covers the side wall surface of the heating element (4) in a second direction, the second direction is perpendicular to the thickness direction of the plate body (10) and perpendicular to the first direction, the first direction is perpendicular to the thickness direction of the plate body (10); And / or, the heat insulating element (5) covers a surface of the heating element (4) on a side facing away from the heat conducting surface (K).

6. The direct cooling plate assembly (110) according to any one of claims 1 to 3, characterized in that: The plate body (10) comprises: A bottom plate (1), wherein a flow channel groove (12) and a mounting groove (11) spaced apart from each other are formed on a surface of one side of the bottom plate (1) along a thickness direction of the bottom plate (1); The cover plate (2) is located on a side of the groove opening of the installation groove (11) away from the groove bottom of the installation groove (11) and is connected to the bottom plate (1). The cover plate (2) blocks the groove opening of the flow channel groove (12) so that the blocked flow channel groove (12) forms the liquid cooling flow channel (3). The cover plate (2) blocks the groove opening of the installation groove (11) so that the blocked installation groove (11) forms the accommodating cavity (M).

7. The direct cooling plate assembly (110) according to claim 6, characterized in that: The heating element (4) is snap-fitted into the mounting groove (11).

8. The direct cooling plate assembly (110) according to claim 5, characterized in that: The thermal insulation element (5) comprises aerogel.

9. A battery system (100), characterized in that: include: The direct cooling plate assembly (110) according to any one of claims 1 to 8; A battery cell module (120), wherein the battery cell module (120) is attached to the heat conductive surface (K).

10. A vehicle, characterized in that: Comprising the battery system (100) as claimed in claim 9.

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