Battery pack case, battery pack and vehicle

Abstract

A battery pack case (100), a battery pack and a vehicle. The battery pack case (100) comprises a frame (1), a cooling plate (2) and a first thermal insulation layer (3), wherein the cooling plate (2) is connected to the frame (1); the first thermal insulation layer (3) is detachably provided between the frame (1) and the cooling plate (2), and the first thermal insulation layer (3) has a first surface and a second surface in the thickness direction thereof; the first surface is attached to the frame (1), and the second surface is attached to the cooling plate (2); the frame (1) is provided with a first limiting portion (11), and the first limiting portion (11) extends in the heightwise direction of the frame (1); the first thermal insulation layer (3) is provided with a first limiting hole (31), and the first limiting portion (11) extends into the first limiting hole (31); and the size of the first limiting portion (11) in the heightwise direction of the frame (1) is less than or equal to the size of the first thermal insulation layer (3) in the heightwise direction of the frame (1). The battery pack case having the above structure can improve the heat management efficiency of a battery module.

Description

Battery pack box, battery pack and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on June 25, 2023, with application number 202321615044.6 and application name “Battery Pack Case, Battery Pack and Vehicle”, all contents of which are incorporated by reference into this application. Technical Field

[0003] The present application belongs to the technical field of power batteries, and specifically relates to a battery pack box, a battery pack and a vehicle. Background Art

[0004] To improve the degree of integration, most power battery packs integrate the battery pack case and the cooling plate together, resulting in direct contact between the battery pack case and the cooling plate. This causes some of the heat on the cooling plate to be lost into the air through the case frame, resulting in energy waste and a failure to provide more efficient thermal management for the battery pack.

[0005] The related art discloses a battery pack box in which an insulation layer is provided between the side beams and the cooling plate. However, the limiting structure in the insulation layer in the related art easily causes the insulation layer to be dislocated and shaken, resulting in insulation failure.

[0006] Utility Model Content

[0007] The present application aims to at least partially address one of the technical problems in the related art. To this end, some embodiments of the present application provide a battery pack case that can improve the assembly accuracy of the thermal insulation layer, thereby improving the thermal management efficiency of the battery module.

[0008] Some embodiments of the present application also provide a battery pack.

[0009] Some embodiments of the present application also provide a vehicle.

[0010] The battery pack case of some embodiments of the present application includes: a frame and a cooling plate, which is connected to the frame; a first thermal insulation layer, which is detachably arranged between the frame and the cooling plate, and the first thermal insulation layer has a first surface and a second surface in the height direction of the frame, the first surface is in contact with the frame, and the second surface is in contact with the cooling plate, the frame has a first limiting portion, the first limiting portion extends along the height direction of the frame, the first thermal insulation layer has a first limiting hole, the first limiting portion extends into the first limiting hole, and the size of the first limiting portion in the height direction of the frame is less than or equal to the size of the first thermal insulation layer at the height of the frame.

[0011] In some embodiments of the present application, the battery pack case reduces the heat on the cooling plate from being lost to the outside through the frame by providing a first thermal insulation layer between the frame and the cooling plate. A first limiting hole is provided on the thermal insulation layer, and a first limiting portion is provided on the frame. The first limiting portion extends into the first limiting hole, thereby improving the assembly accuracy of the first thermal insulation layer, thereby reducing energy loss and improving the thermal management efficiency of the battery module. Since the size of the first limiting portion in the frame height direction is less than or equal to the size of the first thermal insulation layer at the frame height, it is ensured that the end faces of both sides of the first thermal insulation layer are always in contact with the frame and the cooling plate, thereby avoiding the first thermal insulation layer from shaking between the frame and the cooling plate, further improving the assembly accuracy of the thermal insulation layer, and ensuring the thermal insulation effect between the frame and the cooling plate.

[0012] In some embodiments, the first limiting portion is located on a side of the frame adjacent to the cooling plate, there are multiple first limiting portions, there are multiple first limiting holes, the multiple first limiting portions are spaced apart on the frame, and the multiple first limiting holes correspond one-to-one to the multiple first limiting portions.

[0013] In some embodiments, the width of the first thermal insulation layer is less than or equal to the width of the frame, and / or the outer contour of the first thermal insulation layer matches the outer contour of the frame.

[0014] In some embodiments, it also includes a bottom guard plate and a second thermal insulation layer. The bottom guard plate is arranged below the cooling plate, the bottom guard plate is connected to the frame, and the second thermal insulation layer is arranged between the cooling plate and the bottom guard plate.

[0015] In some embodiments, a second limiting portion is provided on one side of the cooling plate adjacent to the bottom guard plate, the second limiting portion extends along the height direction of the frame, a second limiting hole is provided on the second thermal insulation layer, and the second limiting portion extends into the second limiting hole.

[0016] In some embodiments, there are multiple second limiting portions, and there are multiple second limiting holes. The multiple second limiting portions are spaced apart on the cooling plate, and the multiple second limiting holes correspond one-to-one to the multiple second limiting portions.

[0017] The battery pack of some embodiments of the present application includes: a battery pack case, which is the battery pack case of some of the above embodiments; and a battery module, which is arranged in the battery pack case.

[0018] In some embodiments, the battery pack further includes a thermally conductive layer, which is disposed at the bottom of the battery module and between the battery module and the battery pack body, and / or, there are multiple thermally conductive layers, which are spaced apart in the width direction of the frame.

[0019] In some embodiments, the battery pack further includes a limiting plate, which is disposed between the battery module and the battery pack case, and the thermal conductive layer is mounted on the limiting plate.

[0020] The vehicle of some embodiments of the present application includes a battery pack as described in some of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a partial cross-sectional view of a battery pack case according to some embodiments of the present application.

[0022] FIG2 is a partial cross-sectional view of another position of the battery pack case in some embodiments of the present application.

[0023] FIG3 is a partial cross-sectional view of another position of the battery pack case in some embodiments of the present application.

[0024] FIG4 is a partial cross-sectional view of another position of the battery pack case in some embodiments of the present application.

[0025] FIG5 is a partially enlarged view of the battery pack case of some embodiments of the present application, and does not include the first thermal insulation layer.

[0026] Figure 6 is a partial enlarged view of the battery pack body of some embodiments of the present application, including the first insulation layer

[0027] FIG7 is a partially enlarged view of the battery pack case of some other embodiments of the present application, and does not include the first insulation layer.

[0028] FIG8 is a partially enlarged view of the battery pack case of some other embodiments of the present application, and includes a first thermal insulation layer.

[0029] FIG9 is a schematic structural diagram of a battery pack according to some embodiments of the present application.

[0030] FIG10 is an exploded view of a battery pack according to some embodiments of the present application.

[0031] Reference numerals: battery pack case 100 , battery module 200 , frame 1 , first limiting portion 11 , cooling plate 2 , second limiting portion 21 , first thermal insulation layer 3 , first limiting hole 31 , bottom guard plate 4 , second thermal insulation layer 5 , second limiting hole 51 , thermal conductive layer 6 , limiting plate 7 . DETAILED DESCRIPTION

[0032] Some embodiments of the present application are described in detail below, and examples of some embodiments are shown in the accompanying drawings. Some embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present application, but should not be understood as limiting the present application.

[0033] As shown in Figures 1 to 8, the battery pack case 100 of some embodiments of the present application includes a frame 1, a cooling plate 2 and a first thermal insulation layer 3. The cooling plate 2 is connected to the frame 1, and the first thermal insulation layer 3 is detachably arranged between the frame 1 and the cooling plate 2. The first thermal insulation layer 3 has a first surface and a second surface in the height direction of the frame 1 (the up and down direction as shown in Figure 1), the first surface is in contact with the frame 1, and the second surface is in contact with the cooling plate 2.

[0034] It should be noted that the first surface is the upper surface of the first thermal insulation layer 3, and the second surface is the lower surface of the first thermal insulation layer 3, that is, the upper surface of the first thermal insulation layer 3 is in contact with the lower surface of the frame 1, and the lower surface of the first thermal insulation layer 3 is in contact with the upper surface of the cooling plate 2.

[0035] In some embodiments, the first thermal insulation layer 3 may be bonded between the frame 1 and the cooling plate 2 .

[0036] Specifically, as shown in Figures 1 to 4, the frame 1, the first thermal insulation layer 3 and the cooling plate 2 are arranged in sequence from top to bottom, the upper end of the first thermal insulation layer 3 is in contact with the bottom of the frame 1, and the lower end of the first thermal insulation layer 3 is in contact with the upper end surface of the cooling plate 2.

[0037] It should be noted that the first thermal insulation layer 3 can be made of thermal insulation and sealing foam, which can not only reduce or prevent the heat of the cooling plate 2 from being transferred to the frame 1, but also improve the sealing performance between the frame 1 and the cooling plate 2.

[0038] The frame 1 has a first limiting portion 11, which extends along the height direction of the frame 1 (the up and down direction as shown in Figure 5). The first thermal insulation layer 3 is provided with a first limiting hole 31, and the first limiting portion 11 extends into the first limiting hole 31. The size of the first limiting portion 31 in the height direction of the frame 1 is less than or equal to the size of the first thermal insulation layer 3 at the height of the frame 1.

[0039] Specifically, as shown in Figures 4 to 6, a first limiting portion 11 is provided at the bottom of the frame 1. The first limiting portion 11 extends in the vertical direction. The outer contour of the first limiting portion 11 is rectangular, and the inner contour of the first limiting hole 31 matches the outer contour of the first limiting portion 11. It should be noted that the outer contour of the first limiting portion 11 can also be other shapes, for example, the outer contour of the first limiting portion 11 can be elliptical.

[0040] As shown in FIG. 3 , FIG. 7 and FIG. 8 , the outer contour of the first limiting portion 11 may be circular, and the inner contour of the first limiting hole 31 may be circular.

[0041] It should be noted that the first limiting portion 11 can be die-cast as an integral part with the frame 1, or the first limiting portion 11 can be connected to the frame 1 by a detachable connection method such as snap connection, bonding or bolt connection, or the first limiting portion 11 can be connected to the frame 1 by welding, riveting or the like.

[0042] When the first thermal insulation layer 3 is installed between the frame 1 and the cooling plate 2, the lower end surface of the first thermal insulation layer 3 is flush with the lower end surface of the first limiting portion 11. In other words, the height of the first thermal insulation layer 3 is the same as the height of the first limiting portion 11. By setting the first limiting portion 11, not only can the assembly accuracy of the first thermal insulation layer 3 be improved, but also the pressing size of the first thermal insulation layer 3 can be adjusted by selecting the height of the first limiting portion 11, thereby meeting the assembly requirements of battery pack cases 100 of different models.

[0043] In some embodiments of the present application, the battery pack case reduces the heat loss from the cooling plate 2 to the outside through the frame 1 by setting a first thermal insulation layer 3 between the frame 1 and the cooling plate 2. By opening a first limiting hole 31 on the thermal insulation layer and setting a first limiting portion 11 on the frame 1, the first limiting portion 11 extends into the first limiting hole 31, thereby improving the assembly accuracy of the first thermal insulation layer 3, thereby reducing energy loss and improving the thermal management efficiency of the battery module. Since the size of the first limiting portion 11 in the height direction of the frame 1 is less than or equal to the size of the first thermal insulation layer 3 at the height of the frame 1, it is ensured that the two side end faces of the first thermal insulation layer 3 are always in contact with the frame 1 and the cooling plate 2, thereby avoiding the first thermal insulation layer 3 from shaking between the frame 1 and the cooling plate 2, further improving the assembly accuracy of the thermal insulation layer, and ensuring the thermal insulation effect between the frame 1 and the cooling plate 2.

[0044] In some embodiments, there are multiple first limiting portions 11 and multiple first limiting holes 31 . The multiple first limiting portions 11 are spaced apart on the frame 1 , and the multiple first limiting holes 31 correspond one-to-one to the multiple first limiting portions 11 .

[0045] For example, multiple first limiting portions 11 are evenly spaced around the periphery of the frame 1. The number of first limiting portions 11 is the same as the number of first limiting holes 31, and the multiple first limiting portions 11 correspond one-to-one with the multiple first limiting holes 31. Providing multiple first limiting portions 11 not only further improves the assembly accuracy of the first thermal insulation layer 3, but also ensures the uniformity of the pressed dimensions of the first thermal insulation layer 3 at different locations, thereby improving the uniformity of thermal insulation and sealing.

[0046] In some embodiments, the width of the first thermal insulation layer 3 is less than or equal to the width of the frame 1 , and / or the outer contour of the first thermal insulation layer 3 matches the outer contour of the frame 1 .

[0047] Specifically, as shown in Figures 1 and 2, the first thermal insulation layer 3 is located below the frame 1, and the width of the first thermal insulation layer 3 is smaller than the width of the frame 1, or the width of the first thermal insulation layer 3 is equal to the width of the frame 1, that is, the thermal insulation between the frame 1 and the cooling plate 2 is ensured, and the heat loss on the cooling plate 2 to the outside through the frame 1 is reduced. When the width of the first thermal insulation layer 3 is greater than that of the frame 1, the left end of the first thermal insulation layer 3 will have the risk of invading the battery accommodating cavity in the frame 1, resulting in contact between the battery module and the first thermal insulation layer 3, affecting the heat dissipation of the battery module.

[0048] In some embodiments, the outer contour of the first thermal insulation layer 3 is adapted to the outer contour of the frame 1 , which can ensure that the first thermal insulation layer 3 and the frame 1 fit more closely and ensure balanced thermal insulation throughout the frame 1 .

[0049] In some embodiments, the battery pack case 100 further includes a bottom guard plate 4 and a second thermal insulation layer 5 . The bottom guard plate 4 is disposed below the cooling plate 2 . The bottom guard plate 4 is connected to the frame 1 . The second thermal insulation layer 5 is disposed between the cooling plate 2 and the bottom guard plate 4 .

[0050] Specifically, as shown in Figures 1 and 2, the bottom guard plate 4 is provided below the cooling plate 2, the four sides of the bottom guard plate 4 are connected to the frame 1, and the second thermal insulation layer 5 is provided between the cooling plate 2 and the bottom guard plate 4. The second thermal insulation layer 5 can be a thermal insulation board, and the second thermal insulation layer 5 covers the entire or part of the cooling plate 2. For example, the upper end surface of the second thermal insulation layer 5 can cover the entire bottom of the cooling plate 2, or the second thermal insulation layer 5 is only installed at the contact position between the cooling plate 2 and the bottom guard plate 4.

[0051] The second heat insulating layer 5 may be made of heat insulating sealing foam, which can not only reduce or prevent the heat of the cooling plate 2 from being transferred to the bottom guard plate 4 , but also improve the sealing performance between the bottom guard plate 4 and the cooling plate 2 .

[0052] In some embodiments of the present application, the battery pack case 100 includes a second thermal insulation layer 5 disposed between the cooling plate 2 and the bottom guard plate 4 to reduce heat loss from the cooling plate 2 to the outside through the bottom guard plate 4, thereby reducing energy loss and improving the thermal management efficiency of the battery module 200. Furthermore, by installing the second thermal insulation layer 5 between the bottom guard plate 4 and the cooling plate 2, the sealing and protective performance of the bottom of the cooling plate 2 can be improved.

[0053] In some embodiments, a second limiting portion 21 is provided on one side of the cooling plate 2 adjacent to the bottom guard plate 4, and the second limiting portion 21 extends along the height direction of the frame 1. A second limiting hole 51 is provided on the second thermal insulation layer 5, and the second limiting portion 21 extends into the second limiting hole 51.

[0054] As shown in Figures 1 and 2, the bottom of the cooling plate 2 is provided with a second limiting portion 21, which extends in the vertical direction. In some embodiments, the outer contour of the second limiting portion 21 is rectangular, and the inner contour of the second limiting hole 51 matches the outer contour of the second limiting portion 21. It should be noted that the outer contour of the second limiting portion 21 can also be other shapes, for example, the outer contour of the second limiting portion 21 can be elliptical or circular.

[0055] It should be noted that the second limiting portion 21 can be die-cast as a whole with the cooling plate 2, or the second limiting portion 21 can be connected to the cooling plate 2 by a detachable connection method such as snap-on, bonding or bolt connection, or the second limiting portion 21 can be connected to the cooling plate 2 by welding, riveting or the like.

[0056] When the second thermal insulation layer 5 is installed between the bottom guard plate 4 and the cooling plate 2, the lower end surface of the second thermal insulation layer 5 is flush with the lower end surface of the second limiting portion 21. In other words, the height of the second thermal insulation layer 5 is the same as the height of the second limiting portion 21. By setting the second limiting portion 21, not only can the assembly accuracy of the second thermal insulation layer 5 be improved, but also the pressing size of the second thermal insulation layer 5 can be adjusted by selecting the height of the second limiting portion 21, thereby meeting the assembly of different types of battery pack boxes 100.

[0057] In some embodiments, there are multiple second limiting portions 21 and multiple second limiting holes 51 . The multiple second limiting portions 21 are spaced apart on the cooling plate 2 , and the multiple second limiting holes 51 correspond one-to-one to the multiple second limiting portions 21 .

[0058] For example, multiple second limiting portions 21 are evenly spaced around the periphery of the frame 1. The number of second limiting portions 21 is the same as the number of second limiting holes 51, and the multiple second limiting portions 21 correspond one-to-one with the multiple second limiting holes 51. Providing multiple second limiting portions 21 not only further improves the assembly accuracy of the second thermal insulation layer 5, but also ensures the uniformity of the pressed dimensions of the second thermal insulation layer 5 at different locations, thereby improving the uniformity of thermal insulation and sealing.

[0059] The battery pack of some embodiments of the present application includes a battery pack case 100 and a battery module 200 . The battery pack case 100 is the battery pack case 100 of any of the above embodiments, and the battery module 200 is disposed in the battery pack case 100 .

[0060] Specifically, as shown in FIG9 and FIG10 , the battery pack case 100 has a space inside for storing the battery module 200 . The battery module 200 is placed in the space, and the cooling plate 2 is provided below the battery module 200 .

[0061] The battery packs of some embodiments of the present application adopt the battery pack case 100 of some of the above-mentioned embodiments. By setting a first thermal insulation layer 3 between the frame 1 and the cooling plate 2, the heat on the cooling plate 2 is reduced from being lost to the outside through the frame 1. A second thermal insulation layer 5 is set between the cooling plate 2 and the bottom protective plate 4 to reduce the heat on the cooling plate 2 from being lost through the bottom protective plate 4, thereby reducing energy loss and improving the thermal management efficiency of the battery module 200.

[0062] In some embodiments, the battery pack further includes a heat-conducting layer 6 , which is disposed at the bottom of the battery module 200 and between the battery module 200 and the battery pack case 100 .

[0063] Specifically, as shown in Figure 10, the upper end of the thermal conductive layer 6 contacts the lower end of the battery module 200, and the lower end of the thermal conductive layer 6 contacts the bottom of the frame 1. By setting the thermal conductive layer 6, the heat of the cooling plate 2 can be transferred to the battery module 200, thereby improving the thermal management effect of the battery module 200.

[0064] In some embodiments, the number of thermal conductive layers 6 can be multiple, and the multiple thermal conductive layers 6 are arranged at intervals in the width direction of the frame, that is, the multiple thermal conductive layers 6 are arranged at intervals in the left and right directions, and the multiple thermal conductive layers 6 are distributed in parallel, and the multiple thermal conductive layers 6 correspond one-to-one to the multiple battery cells in the battery module 200, or the number of thermal conductive layers 6 is one, and one thermal conductive layer 6 covers the bottom of the entire battery module 200.

[0065] In some embodiments, the battery pack further includes a limiting plate 7 , which is disposed between the battery module 200 and the battery pack case 100 , and the thermal conductive layer 6 is mounted on the limiting plate 7 .

[0066] Specifically, as shown in Figure 10, the limiting plate 7 is arranged between the heat-conducting layer 6 and the bottom of the frame 1. In other words, the heat-conducting layer 6 is arranged above the limiting plate 7. The limiting plate 7 can ensure the relative position between the heat-conducting layer 6 and the battery module 200, thereby ensuring the heat-conducting effect of the heat-conducting layer 6.

[0067] The vehicle of some embodiments of the present application includes a battery pack as described in some of the above embodiments.

[0068] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and 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, and therefore should not be understood as a limitation on the present application.

[0069] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0070] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0071] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0072] In this application, the terms "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with some embodiments or examples are included in some embodiments or examples of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Moreover, the specific features, structures, materials or characteristics described can be combined in some embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine some embodiments or examples described in this specification and the features of some embodiments or examples without contradiction.

[0073] Although some embodiments of the present application have been shown and described above, it can be understood that some of the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify some of the above embodiments within the scope of the present application.

Claims

1. A battery pack box, characterized in that: include: A frame and a cooling plate, wherein the cooling plate is connected to the frame; a first heat insulation layer, wherein the first heat insulation layer is detachably disposed between the frame and the cooling plate, and the first heat insulation layer has a first surface and a second surface in a height direction of the frame, the first surface is in contact with the frame, and the second surface is in contact with the cooling plate, The frame has a first limiting portion, which extends along the height direction of the frame. The first thermal insulation layer has a first limiting hole, into which the first limiting portion extends. The size of the first limiting portion in the height direction of the frame is less than or equal to the size of the first thermal insulation layer at the height of the frame.

2. The battery pack case according to claim 1, characterized in that: The first limiting portion is located on a side of the frame adjacent to the cooling plate, there are multiple first limiting portions, there are multiple first limiting holes, the multiple first limiting portions are spaced apart on the frame, and the multiple first limiting holes correspond one-to-one to the multiple first limiting portions.

3. The battery pack case according to claim 2, characterized in that: The width of the first heat-insulating layer is less than or equal to the width of the frame, and / or the outer contour of the first heat-insulating layer matches the outer contour of the frame.

4. The battery pack case according to any one of claims 1 to 3, characterized in that: It also includes a bottom guard plate and a second heat insulation layer, wherein the bottom guard plate is arranged below the cooling plate, the bottom guard plate is connected to the frame, and the second heat insulation layer is arranged between the cooling plate and the bottom guard plate.

5. The battery pack case according to claim 4, characterized in that: A second limiting portion is provided on one side of the cooling plate adjacent to the bottom guard plate, the second limiting portion extends along the height direction of the frame, a second limiting hole is provided on the second heat insulation layer, and the second limiting portion extends into the second limiting hole.

6. The battery pack case according to claim 5, characterized in that: There are multiple second limiting portions, there are multiple second limiting holes, the multiple second limiting portions are spaced apart on the cooling plate, and the multiple second limiting holes correspond one-to-one to the multiple second limiting portions.

7. A battery pack, characterized in that: include: A battery pack case, wherein the battery pack case is the battery pack case according to any one of claims 1 to 6; A battery module is arranged in the battery pack box.

8. The battery pack according to claim 7, characterized in that: It also includes a heat-conducting layer, which is arranged at the bottom of the battery module and between the battery module and the battery pack body, and / or there are multiple heat-conducting layers, which are arranged at intervals in the width direction of the frame.

9. The battery pack according to claim 8, characterized in that: It also includes a limiting plate, which is arranged between the battery module and the battery pack body, and the heat conductive layer is installed on the limiting plate.

10. A vehicle, characterized in that: Comprising a battery pack as claimed in any one of claims 7 to 9.

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