Heat exchange plate and battery pack case having same, battery pack, and vehicle

Abstract

A vehicle. The vehicle comprises a battery pack; the battery pack comprises a battery pack case; the battery pack case comprises a heat exchange plate; and the heat exchange plate comprises a runner plate, a sealing plate, and a supporting member. The two sides of the runner plate in the thickness direction are respectively a first side and a second side, and the runner plate is provided with a protruding portion on the first side. The sealing plate is arranged on the first side of the runner plate, and the orthographic projection of the sealing plate on the runner plate covers at least part of the protruding portion. The supporting member is arranged between the runner plate and the sealing plate for supporting.

Description

Heat exchange plate, battery pack box, battery pack and vehicle having the same

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on July 26, 2023, with application number 202321991304.X and entitled “Heat exchange plate and battery pack case, battery pack and vehicle having the same”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the technical field of battery packs, and in particular to a heat exchange plate and a battery pack case, a battery pack, and a vehicle having the same. Background Art

[0004] In the battery and body integration technology, the liquid cooling plate used for heat exchange in the battery pack is located on the upper part of the battery pack. When the upper part of the battery pack needs to be sealed with the body of the vehicle, the uneven surface of the liquid cooling plate makes it difficult to achieve a sealed connection between the battery pack and the vehicle body.

[0005] Public content

[0006] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present application is to provide a heat exchange plate that facilitates the sealed connection between the battery pack and the vehicle body.

[0007] The second object of this application is to provide a battery pack box using the above-mentioned heat exchange plate.

[0008] The third object of this application is to provide a battery pack using the above-mentioned heat exchange plate.

[0009] The fourth objective of this application is to provide a vehicle using the above-mentioned battery pack.

[0010] According to the first aspect of the present application, the heat exchange plate includes: a flow channel plate, wherein the two sides of the flow channel plate in the thickness direction are respectively a first side and a second side, and the flow channel plate has a protrusion on the first side; a sealing plate, wherein the sealing plate is arranged on the first side of the flow channel plate, and the positive projection of the sealing plate on the flow channel plate covers at least part of the protrusion; and a support member, wherein the support member is supported between the flow channel plate and the sealing plate.

[0011] According to the heat exchange plate of the embodiment of the present application, by making the positive projection of the sealing plate on the flow channel plate cover at least part of the raised portion, a support member is provided between the flow channel plate and the sealing plate, and the support member is supported between the flow channel plate and the sealing plate. Therefore, the sealing plate can be installed flatly on the flow channel plate without the need for special design of the structure of the heat exchange plate and the sealing plate, thereby increasing the flatness of the sealing plate, thereby increasing the area of ​​the heat exchange plate that can be used for sealing with the external structure. When the heat exchange plate is applied to the battery pack of a vehicle, the contact area between the battery pack and the vehicle body is increased, thereby realizing a sealed connection between the battery pack and the vehicle body.

[0012] According to some embodiments of the present application, the flow channel plate includes a flow channel area, which is provided with a flow channel, and at least part of the protrusion corresponds to the flow channel; and a non-flow channel area, which is arranged around the flow channel area, and the positive projection of the sealing plate on the flow channel plate covers at least part of the non-flow channel area and at least part of the flow channel area.

[0013] According to some embodiments of the present application, the support member is supported between the non-flow channel area and the sealing plate.

[0014] According to some embodiments of the present application, the support member is a frame-shaped structure, and the flow channel plate and the sealing plate are sealed and connected via the support member.

[0015] According to some embodiments of the present application, an opening is formed on the sealing plate and passes through the flow channel plate in the thickness direction, the sealing plate surrounds the entire periphery of the opening, and the opening is suitable for being opposite to the passenger compartment of the vehicle; the positive projection of the sealing plate on the flow channel plate covers part of the flow channel area.

[0016] According to some embodiments of the present application, the heat exchange plate further includes a temperature averaging plate, and the temperature averaging plate is disposed on the second side of the flow channel plate.

[0017] According to some embodiments of the present application, an insulating layer is provided on a surface of the temperature homogenizing plate that is away from the flow channel plate.

[0018] According to some embodiments of the present application, the sealing plate, the support member and the flow channel plate are connected into one body by welding.

[0019] According to some embodiments of the present application, the support member is formed by welding a plurality of frames.

[0020] According to some embodiments of the present application, the flow channel plate includes a first side plate and a second side plate arranged in the thickness direction of the flow channel plate, the first side plate has the protrusion, and the protrusion and the second side plate jointly define the flow channel.

[0021] According to the second aspect of the present application, the battery pack case includes: a battery tray; and a heat exchange plate according to the first aspect of the present application, wherein the heat exchange plate is suitable for being enclosed with the battery tray to form a battery accommodating cavity, and the battery accommodating cavity is suitable for being located on the second side of the flow channel plate.

[0022] A battery pack according to an embodiment of the third aspect of the present application includes: a battery pack case, the battery pack case including a battery tray and a first heat exchange plate, the first heat exchange plate being the heat exchange plate of the embodiment of the first aspect of the present application, the first heat exchange plate and the battery tray forming a battery accommodating cavity, the battery accommodating cavity being located on the second side of the flow channel plate; and a battery, the battery being accommodated in the battery accommodating cavity.

[0023] According to some embodiments of the present application, the first heat exchange plate is arranged at the top of the battery tray; the battery pack further includes a second heat exchange plate, which is arranged at the bottom of the battery tray.

[0024] The vehicle according to the fourth embodiment of the present application includes a battery pack according to the third embodiment of the present application.

[0025] According to some embodiments of the present application, the vehicle further includes a vehicle body, and the battery pack is disposed at the bottom of the vehicle body.

[0026] According to some embodiments of the present application, the vehicle body includes a passenger compartment; an opening is formed on the sealing plate and passes through the flow channel plate in a thickness direction, and the opening is arranged corresponding to the passenger compartment.

[0027] According to some embodiments of the present application, the vehicle further includes a sealing member surrounding the opening and disposed between the sealing plate and the vehicle body.

[0028] 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

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

[0030] FIG1 is an exploded view of a heat exchange plate according to an embodiment of the present application;

[0031] FIG2 is a schematic diagram of a heat exchange plate according to an embodiment of the present application;

[0032] FIG3 is a partial cross-sectional view taken along line AA in FIG2 ;

[0033] FIG4 is a schematic diagram of the assembly of a battery pack and a seal according to an embodiment of the present application;

[0034] FIG5 is an exploded view of a battery pack and a seal according to an embodiment of the present application;

[0035] FIG6 is a schematic block diagram of a vehicle according to an embodiment of the present application.

[0036] Figure numerals: vehicle 1000, heat exchange plate 100, battery pack case 200, battery pack 300, flow channel plate 1, first side plate 11, protrusion 12, second side plate 13, flow channel 14, flow channel area 15, non-flow channel area 16, sealing plate 2, opening 21, support 3, temperature uniform plate 4, insulating layer 41, passenger compartment 201, seal 202, battery tray 203, battery 204, second heat exchange plate 205. DETAILED DESCRIPTION

[0037] The heat exchange plate 100 according to the first embodiment of the present application is described below with reference to Figures 1 to 5. It should be noted that the present application takes the application of the heat exchange plate 100 to a battery pack as an example, but is not limited thereto.

[0038] As shown in FIG. 1 to FIG. 5 , the heat exchange plate 100 according to an embodiment of the present application includes a flow channel plate 1 , a sealing plate 2 and a support member 3 .

[0039] Specifically, the two sides of the flow channel plate 1 in the thickness direction (e.g., the vertical direction in FIG. 1 or the horizontal direction in FIG. 3 ) are respectively the first side and the second side. It should be noted that, since FIG. 1 shows an axonometric view of the flow channel plate 1 , the thickness direction of the flow channel plate 1 does not strictly correspond to the aforementioned vertical direction, but rather roughly coincides with the aforementioned vertical direction. The flow channel plate 1 is plate-shaped, and its thickness is consistent with the conventional understanding of the thickness of a plate-like structure, which is generally the minimum unidirectional dimension of the plate-like structure.

[0040] The flow channel plate 1 has a raised portion 12 on a first side. For example, the flow channel plate 1 includes a first side plate 11 and a second side plate 13 arranged in the thickness direction. The raised portion 12 and the second side plate 13 together define a flow channel 14. The sealing plate 2 is disposed on the first side of the flow channel plate 1. The orthographic projection of the sealing plate 2 on the flow channel plate 1 covers at least a portion of the raised portion 12. The support member 3 is supported between the flow channel plate 1 and the sealing plate 2.

[0041] Among them, water or other fluid with good thermal conductivity can be injected into the flow channel 14 of the flow channel plate 1, so that the flow channel plate 1 can absorb the heat generated by the components in contact with it, such as the battery core, or the heat of the heat-conducting liquid can be transferred to the components in contact with it to regulate the temperature of the above-mentioned components and maintain the temperature of the above-mentioned components stable.

[0042] The flow channel plate 1 has a raised portion 12 on its first side. For example, the flow channel plate 1 is thinner in areas where the flow channel 14 is not located. In areas where the flow channel 14 is located, a raised portion 12 is formed there to allow for space. Furthermore, other components (such as fasteners) may also form raised portions 12 on the flow channel plate 1.

[0043] Optionally, the flow channel plate 1 can be integrally formed, or it can be formed by fixing two independently formed side plates together. For example, in the examples of Figures 1 to 5, the heat exchange plate 100 can be installed above the battery tray 203, and the flow channel plate 1 includes a first side plate 11 and a second side plate 13. The first side plate 11 of the flow channel plate 1 is away from the battery tray 203, and the second side plate 13 of the flow channel plate 1 is close to the battery tray 203. The raised portion 12 of the first side plate 11 extends in a direction away from the second side plate 13, and the second side plate 13 can be a flat plate. The raised portion 12 and the second side plate 13 jointly define the flow channel 14. The first side plate 11 and the second side plate 13 are independently formed and fixed together to form the flow channel plate 1.

[0044] The orthographic projection of the sealing plate 2 on the flow channel plate 1 covers at least part of the raised portion 12. The orthographic projection of the sealing plate 2 on the flow channel plate 1 may cover all of the raised portion 12, or may cover part of the raised portion 12. In other words, "covering" may mean covering the entirety or covering part of the raised portion 12. Specifically, referring to Figure 1, when the thickness direction of the flow channel plate 1 is the same as the up-down direction, and the first side is above the second side, there is a sealing plate 2 above at least a part of the raised portion 12. In addition, the orthographic projection of the sealing plate 2 on the flow channel plate 1 may also cover areas other than the raised portion 12 of the flow channel plate 1. It should be noted that since the flow channel plate 1 is not a flat plate, when understanding the meaning of the orthographic projection of the sealing plate 2 on the flow channel plate 1, the flow channel plate 1 can be approximately understood as a flat plate that is coplanar with the flat portion of the actual flow channel plate 1.

[0045] Referring to Figure 1 , the orthographic projection of the sealing plate 2 on the flow channel plate 1 covers at least a portion of the raised portion 12 . In other words, the sealing plate 2 provides more flat surfaces for sealing the heat exchange plate 100 with the external structure. The sealing plate 2 is used to seal the heat exchange plate 100 with the external structure, providing a flat surface for sealing the heat exchange plate 100 with the external structure. For example, the external structure can be a vehicle body. The heat exchange plate 100 is sealed to the vehicle body through the sealing plate 2, isolating the passenger compartment 201 from the outside and preventing air, water, and other substances from entering the passenger compartment 201.

[0046] The support member 3 can be positioned within the gaps between the flow channels 14 (not shown); alternatively, the support member 3 can be positioned at the edge of the flow channel plate 1 (as shown in FIG1 ); or alternatively, the support member 3 can be positioned within the gaps between the flow channels 14 and at the edge of the flow channel plate 1. The support member 3 can be offset from the flow channels 14 on the flow channel plate 1. The sealing plate 2 is located on the side of the support member 3 that is away from the flow channel plate 1.

[0047] The support member 3 is supported between the flow channel plate 1 and the sealing plate 2. It can be understood that the surface of the support member 3 close to the sealing plate 2 is at least flush with the end of the protrusion 12 on the second side away from the flow channel plate 1, wherein the surface of the support member 3 close to the sealing plate 2 can be just flush with the end of the protrusion 12 on the second side away from the flow channel plate 1, or the surface of the support member 3 close to the sealing plate 2 can be slightly higher than the end of the protrusion 12 on the second side away from the flow channel plate 1.

[0048] By positioning the support member 3 between the flow channel plate 1 and the sealing plate 2, the height difference caused by the raised portion 12 can be filled using the support member 3. This facilitates installation of the sealing plate 2 without requiring special structural design of the flow channel plate 1 or the sealing plate 2 (e.g., thickening the area of ​​the flow channel plate 1 without the flow channel 14, or thickening or bending the area of ​​the flow channel plate 1 without the flow channel 14 corresponding to the sealing plate 2). This achieves a sealed connection between the battery pack and the vehicle body, simplifying the fabrication process of the heat exchange plate 100.

[0049] Generally speaking, to improve the heat exchange efficiency of the heat exchange plate 100 within a limited space, the area of ​​the flow channel plate 1 provided with the flow channels 14 occupies the majority of the flow channel plate 1, leaving only a small area without flow channels 14 or with only a small number of flow channels 14. The raised portions 12 formed by the flow channels 14 or other components make it difficult to seal the area provided with the flow channels 14 with external structures. The small area without flow channels 14 or with only a small number of flow channels 14 does not provide sufficient area for fixed connection and / or sealing between the heat exchange plate 100 and other structures (such as the battery tray 203, the vehicle body, etc.).

[0050] According to the heat exchange plate 100 of the embodiment of the present application, the orthographic projection of the sealing plate 2 on the flow channel plate 1 covers at least part of the raised portion 12, and a support member 3 is arranged between the flow channel plate 1 and the sealing plate 2, and the support member 3 is supported between the flow channel plate 1 and the sealing plate 2. Therefore, the sealing plate 2 can be installed flatly on the flow channel plate 1 without the need for special design of the structures of the heat exchange plate 100 and the sealing plate 2, thereby increasing the flatness of the sealing plate 2, thereby increasing the area of ​​the heat exchange plate 100 that can be used for sealing with the external structure. When the heat exchange plate 100 is applied to the battery pack of a vehicle, the contact area between the battery pack and the vehicle body is increased, thereby realizing a sealed connection between the battery pack and the vehicle body.

[0051] According to some specific embodiments of the present application, referring to FIG1 , a flow channel plate 1 includes a flow channel region 15 and a non-flow channel region 16. The non-flow channel region 16 is disposed around the flow channel region 15. The flow channel region 15 is provided with flow channels 14, and at least a portion of the raised portions 12 corresponds to the flow channels 14. The orthographic projection of the sealing plate 2 on the flow channel plate 1 covers at least a portion of the non-flow channel region 16 and at least a portion of the flow channel region 15. The non-flow channel region 16 may be completely free of flow channels 14 or may be provided with only a small number of flow channels 14.

[0052] Specifically, the orthographic projection of the sealing plate 2 on the flow channel plate 1 covers at least a portion of the non-flow channel area 16, and may cover part of or all of the non-flow channel area 16. The orthographic projection of the sealing plate 2 on the flow channel plate 1 covers at least a portion of the flow channel area 15, and may cover part of or all of the flow channel area 15. Referring to Figure 1, when the thickness direction of the flow channel plate 1 is the same as the up-down direction, and the first side is above the second side, the sealing plate 2 extends from above the non-flow channel area 16 to above the flow channel area 15.

[0053] Understandably, to improve the heat exchange efficiency of the heat exchange plate 100 within a limited space, the area of ​​the flow channel plate 1 provided with the flow channels 14 typically occupies the majority of the flow channel plate 1, leaving only a small portion of the edge area without or with only a small number of flow channels 14. In other words, the width of the non-flow channel area 16 is often small, making it difficult to provide sufficient area for securing the heat exchange plate 100 to other structures (such as the battery tray 203 or the vehicle body). This is particularly true for vehicles utilizing battery-body integration (CTB) technology, where the upper portion of the battery pack must be sealed to the vehicle body, forming the passenger compartment 201 and the external non-passenger compartment. When the heat exchange plate 100 is applied above the battery pack, the flow channel area 15, due to the flow channels 14, has an uneven surface, making it difficult to secure or seal it to the battery pack and / or the vehicle body. Furthermore, the non-flow channel area 16 is relatively small. Excluding the area used for securing the battery tray 203, the remaining non-flow channel area 16 is narrow, making it difficult to provide sufficient area for sealing with the vehicle body. Through the structural design of the above-mentioned flow channel plate 1, sealing plate 2 and support member 3, the area of ​​the heat exchange plate 100 used for sealing with the external structure (such as the vehicle body) can be increased, the sealing effect can be improved, and the reliability and safety of the battery pack and the vehicle can be ensured.

[0054] According to some specific embodiments of the present application, the support member 3 is supported between the non-flow channel area 16 and the sealing plate 2. In other words, the support member 3 is arranged corresponding to the non-flow channel area 16 (the area outside the protrusion 12 on the first side of the flow channel plate 1).

[0055] According to some specific embodiments of the present application, the support member 3 is a frame-shaped structure, and the flow channel plate 1 and the sealing plate 2 are sealed and connected by the support member 3. That is, the flow channel plate 1 and the sealing plate 2 are sealed and connected at the support member 3. In this way, the support member 3 supports the edge of the sealing plate 2 on the outer peripheral side of the entire flow channel 14. While increasing the stability of the sealing plate 2, the structure of the support member 3 is simpler, convenient for processing, and reduces the weight of the heat exchange plate 100. At the same time, the flow channel plate 1 and the sealing plate 2 are sealed and connected by the support member 3, which can prevent the external gas or liquid of the vehicle from entering between the flow channel plate 1 and the sealing plate 2. Therefore, when the heat exchange plate 100 is applied to the battery pack of the vehicle, it can prevent the gas or liquid outside the vehicle body from entering the passenger compartment 201, and reduce the heat exchange between the protrusion 12 and the external environment, thereby improving the heat exchange efficiency of the flow channel plate 1 and the components in contact with it, such as the battery cell.

[0056] According to some embodiments of the present application, an opening 21 is formed on the sealing plate 2, which passes through the flow channel plate 1 in the thickness direction. The sealing plate 2 surrounds the entire periphery of the opening 21. The opening 21 is suitable for being opposite to the passenger compartment 201 of the vehicle. The positive projection of the sealing plate 2 on the flow channel plate 1 covers part of the flow channel area 15. Referring to the examples of Figures 1 to 4, a rectangular opening 21 is provided through the sealing plate 2, and the size of the opening 21 corresponds to the size of the passenger compartment 201 of the vehicle. In this way, the weight of the heat exchange plate 100 can be reduced. In addition, the portion of the sealing plate 2 where the opening 21 is not provided provides a fixing point for fixing the heat exchange plate 100 to the vehicle components, which facilitates the connection of the heat exchange plate 100 to the non-passenger compartment 201 part of the vehicle body. While ensuring that the sealing plate 2 has good structural strength, the battery pack can be stably mounted on the vehicle body.

[0057] In some optional embodiments, referring to FIG1 , the heat exchange plate 100 further includes a temperature averaging plate 4, which is disposed on the second side of the flow channel plate 1. For example, the temperature averaging plate 4 is disposed on the second side plate 13. Thus, heat within the flow channel 14 is evenly distributed on the temperature averaging plate 4 through heat conduction. The temperature averaging plate 4 then regulates the temperature of components in contact with the heat exchange plate 100, such as battery cells, thereby ensuring consistent temperature of the battery cells in the battery pack.

[0058] In some optional embodiments, an insulating layer 41 is provided on the side of the vapor chamber 4 facing away from the flow channel plate 1. As shown in Figure 1, the insulating layer 41 is provided on the side of the vapor chamber 4 facing away from the flow channel plate 1, that is, facing the battery cells. The provision of the insulating layer 41 effectively enhances the insulation protection performance of the vapor chamber 4, thereby preventing thermal runaway of the battery cells from being transferred to the vapor chamber 4 and causing arcing and fire, thereby increasing the safety of the battery pack.

[0059] In some optional embodiments, the sealing plate 2, the support member 3 and the flow channel plate 1 are connected as one by welding. The type of welding is not particularly limited. For example, the sealing plate 2, the support member 3 and the flow channel plate 1 can be connected as one by brazing. Brazing technology is a method of using a material with a lower melting point than the base material as a brazing material, heating the weldment and the brazing material to a temperature higher than the melting point of the brazing material and lower than the melting point of the base material (so that the base material remains in a solid state), using the wetting effect of the liquid brazing material to fill the joint gap, and mutually diffusing with the base material to achieve the connection of the welded workpieces. Common brazing methods include tin soldering, copper soldering, and lead enameling. The sealing plate 2, the support member 3 and the flow channel plate 1 are connected as one by brazing. The heating temperature is low, the deformation of the sealing plate 2, the support member 3 and the flow channel plate 1 is small, the joints are smooth and beautiful, and the production efficiency is high.

[0060] In some optional embodiments, the support member 3 can be welded together from multiple frames. Alternatively, the support member 3 can be brazed together from four frames. In the description of this application, "multiple" means two or more. This simplifies the production process of the support member 3 while ensuring the structural strength of the support member 3.

[0061] In some optional embodiments, the flow channel plate 1 includes a first side plate 11 and a second side plate 13 arranged in the thickness direction of the flow channel plate 1, the first side plate 11 has a protrusion 12, and the protrusion 12 and the second side plate 13 together define a flow channel 14. For example, in the example of Figure 5, the heat exchange plate 100 can be installed above the battery tray 203, and the flow channel plate 1 includes a first side plate 11 and a second side plate 13. The first side plate 11 of the flow channel plate 1 is away from the battery tray 203, and the second side plate 13 of the flow channel plate 1 is close to the battery tray 203. The protrusion 12 of the first side plate 11 extends in a direction away from the second side plate 13, and the second side plate 13 can be a flat plate. The protrusion 12 and the second side plate 13 together define the flow channel 14. The first side plate 11 and the second side plate 13 are independently formed and fixed together to form the flow channel plate 1. In this way, the structure and preparation process of the flow channel plate 1 can be simplified.

[0062] The battery pack case 200 according to the second embodiment of the present application includes a battery tray 203 and the heat exchange plate 100 of the first embodiment of the present application. The heat exchange plate 100 is adapted to enclose the battery tray 203 to form a battery accommodating cavity, which is adapted to be located on the second side of the flow channel plate 1. For example, as shown in FIG5 , the battery tray 203 is provided with an open top, and the heat exchange plate 100 of the first embodiment of the present application is provided at the open top of the battery tray 203. The battery tray 203 and the heat exchange plate 100 enclose a battery accommodating cavity, which is located below the flow channel plate 1 and is adapted to accommodate batteries 204.

[0063] According to the battery pack case 200 of the embodiment of the present application, by adopting the above-mentioned heat exchange plate 100, when used in the battery pack of a vehicle, the safety and stability of the driving process can be guaranteed.

[0064] As shown in Figures 4 and 5, the battery pack 300 according to the embodiment of the third aspect of the present application includes a battery pack case 200 and batteries 204. The battery pack case 200 includes a battery tray 203 and a first heat exchange plate. The first heat exchange plate is the heat exchange plate 100 of the embodiment of the first aspect of the present application. The heat exchange plate 100 and the battery tray 203 enclose a battery accommodating cavity. The batteries 204 are accommodated in the battery accommodating cavity. The heat exchange plate 100 is arranged on the top of the battery tray 203, and the heat exchange plate 100 is in contact with the top of the batteries 204. The battery accommodating cavity of the battery tray 203 is suitable for placing the batteries 204. The heat exchange plate 100 blocks one side of the battery tray 203 in the thickness direction, and the heat exchange plate 100 can exchange heat with the batteries 204, thereby achieving heat regulation of the batteries 204, so that the internal temperature of the battery pack 300 remains stable to ensure the normal operation of the battery pack 300.

[0065] According to the battery pack 300 of the embodiment of the present application, by adopting the above-mentioned heat exchange plate 100, when used in a vehicle, the safety and stability of the driving process can be guaranteed.

[0066] In some optional embodiments, the first heat exchange plate is disposed on the top of the battery tray 203; the battery pack 300 further includes a second heat exchange plate 205, which is disposed on the bottom of the battery tray 203. Thus, by disposing the first heat exchange plate on the top of the battery pack 300 and the second heat exchange plate 205 on the bottom of the battery pack 300, the temperature regulation efficiency of the battery pack 300 is enhanced, further improving the operational stability of the battery pack 300.

[0067] The vehicle 1000 according to the fourth embodiment of the present application includes the battery pack 300 according to the third embodiment of the present application, as shown in FIG6 .

[0068] According to the vehicle 1000 of the embodiment of the present application, by adopting the above-mentioned battery pack 300, the safety and stability of the vehicle 1000 during driving are ensured, and the maintenance cost of the vehicle 1000 is reduced.

[0069] In some optional embodiments, the vehicle 1000 further includes a vehicle body, and the battery pack 300 is disposed at the bottom of the vehicle body. In this case, the first side of the flow channel plate 1 faces the vehicle body.

[0070] In some optional embodiments, referring to FIG4 , the vehicle body includes a passenger compartment 201. The sealing plate 2 is formed with an opening 21 extending through the thickness of the flow channel plate 1. The opening 21 is positioned corresponding to the passenger compartment 201. This arrangement reduces the weight of the heat exchange plate 100 while facilitating its installation on the vehicle body.

[0071] In some optional embodiments, vehicle 1000 further includes a seal 202 that surrounds opening 21 and is positioned between sealing plate 2 and the vehicle body. For example, as shown in FIG5 , seal 202 is rectangular and positioned around the edge of opening 21. Providing seal 202 between opening 21 of sealing plate 2 and the vehicle body enhances the seal between battery pack 300 and the vehicle body.

[0072] Optionally, the sealing member 202 may be sealing foam.

[0073] Other structures and operations of the battery pack 300 and the vehicle 1000 according to the embodiment of the present application are well known to those skilled in the art and will not be described in detail here.

[0074] In the description of the present application, it should be understood that the terms "thickness", "up", "down", "front", "back", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present application.

[0075] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0076] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0077] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A heat exchange plate (100), characterized in that: include: A flow channel plate (1), wherein two sides of the flow channel plate (1) in a thickness direction are respectively a first side and a second side, and the flow channel plate (1) has a protruding portion (12) on the first side; A sealing plate (2), the sealing plate (2) being arranged on the first side of the flow channel plate (1), the orthographic projection of the sealing plate (2) on the flow channel plate (1) covering at least a portion of the raised portion (12); as well as A support member (3), wherein the support member (3) is supported between the flow channel plate (1) and the sealing plate (2).

2. The heat exchange plate (100) according to claim 1, characterized in that: The flow channel plate (1) comprises: A flow channel area (15), wherein the flow channel area (15) is provided with a flow channel (14), and at least part of the protrusion (12) corresponds to the flow channel (14); and A non-flow channel area (16), wherein the non-flow channel area (16) is arranged around the flow channel area (15), and the orthographic projection of the sealing plate (2) on the flow channel plate (1) covers at least part of the non-flow channel area (16) and at least part of the flow channel area (15).

3. The heat exchange plate (100) according to claim 2, characterized in that: The support member (3) is supported between the non-flow channel area (16) and the sealing plate (2).

4. The heat exchange plate (100) according to any one of claims 1 to 3, characterized in that: The support member (3) is a frame-shaped structure, and the flow channel plate (1) and the sealing plate (2) are sealed and connected via the support member (3).

5. The heat exchange plate (100) according to claim 2 or 3, characterized in that: The sealing plate (2) is formed with an opening (21) penetrating along the thickness direction of the flow channel plate (1); the sealing plate (2) surrounds the entire periphery of the opening (21); the opening (21) is suitable for being opposite to a passenger compartment (201) of a vehicle; and the orthographic projection of the sealing plate (2) on the flow channel plate (1) covers a portion of the flow channel area (15).

6. The heat exchange plate (100) according to any one of claims 1 to 5, characterized in that: Also includes: A temperature balancing plate (4), wherein the temperature balancing plate (4) is arranged on the second side of the flow channel plate (1).

7. The heat exchange plate (100) according to claim 6, characterized in that: An insulating layer (41) is provided on a surface of the temperature-averaging plate (4) on a side away from the flow channel plate (1).

8. The heat exchange plate (100) according to any one of claims 1 to 7, characterized in that: The sealing plate (2), the support member (3) and the flow channel plate (1) are connected into one piece by welding.

9. The heat exchange plate (100) according to any one of claims 1 to 8, characterized in that: The support member (3) is formed by welding a plurality of frames.

10. The heat exchange plate (100) according to any one of claims 1 to 9, characterized in that: The flow channel plate (1) comprises a first side plate (11) and a second side plate (13) arranged in the thickness direction of the flow channel plate (1), the first side plate (11) having the protruding portion (12), and the protruding portion (12) and the second side plate (13) jointly defining a flow channel (14).

11. A battery pack box (200), characterized in that: include: Battery tray (203); and According to the heat exchange plate (100) according to any one of claims 1 to 10, the heat exchange plate (100) is suitable for being enclosed with the battery tray (203) to form a battery accommodating cavity, and the battery accommodating cavity is suitable for being located on the second side of the flow channel plate (1).

12. A battery pack (300), characterized in that: include: A battery pack case (200), the battery pack case (200) comprising a battery tray (203) and a first heat exchange plate, the first heat exchange plate being the heat exchange plate (100) according to any one of claims 1 to 10, the first heat exchange plate and the battery tray (203) enclosing a battery accommodating cavity, the battery accommodating cavity being located on the second side of the flow channel plate (1); and A battery (204), the battery (204) is accommodated in the battery accommodating cavity.

13. The battery pack (300) according to claim 12, characterized in that: The first heat exchange plate is arranged on the top of the battery tray (203); the battery pack (300) further comprises a second heat exchange plate (205), and the second heat exchange plate (205) is arranged on the bottom of the battery tray (203).

14. A vehicle (1000), characterized in that: Comprising the battery pack (300) as claimed in claim 12 or 13.

15. The vehicle (1000) according to claim 14, characterized in that It also includes a vehicle body, and the battery pack (300) is arranged at the bottom of the vehicle body.

16. The vehicle (1000) according to claim 15, characterized in that The vehicle body comprises a passenger compartment (201); an opening (21) penetrating along the thickness direction of the flow channel plate (1) is formed on the sealing plate (2); the opening (21) is arranged corresponding to the passenger compartment (201).

17. The vehicle (1000) according to claim 16, characterized in that The vehicle (1000) further comprises a sealing member (202), the sealing member (202) surrounding the opening (21), and the sealing member (202) being arranged between the sealing plate (2) and the vehicle body.

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