Box body of battery pack, battery pack and electric equipment

Abstract

The utility model relates to the technical field of batteries, in particular to a box body of a battery pack, the battery pack and electric equipment. The box body of the battery pack provided by the utility model comprises a box main body, the side wall of the box main body is provided with a plurality of mounting surfaces, the plurality of mounting surfaces are distributed at intervals along the height direction of the box body, and the mounting surfaces are perpendicular to the height direction of the box body; the plurality of bearing plates are in one-to-one correspondence with the mounting surfaces, the bearing plates are supported and fixed on the corresponding mounting surfaces, placement spaces for accommodating battery cell modules are formed on two sides of the bearing plates along the height direction of the box body, and the bearing plates and the bottom wall of the box main body are used for arranging the battery cell modules. According to the box body of the battery pack, provided by the invention, the convenience of the battery cell module in the battery pack during installation and maintenance can be improved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery pack box, a battery pack, and an electrical device. Background Art

[0002] With the rapid development of energy storage systems, the demand for battery packs continues to increase. As a core component of energy storage, the performance of battery packs directly affects the efficiency and safety of the entire system. Currently, battery packs primarily consist of cell modules, a housing, and other auxiliary components.

[0003] The cell modules in existing battery packs are usually fixed by a fixing bracket or placed directly on the bottom of the box body. The fixing bracket is fixed in the box body by integral molding or welding.

[0004] However, the cell modules of existing battery packs are difficult to install and maintain, and are troublesome to disassemble and replace. Utility Model Content

[0005] The present application provides a battery pack box, a battery pack, and an electrical device, which can improve the convenience of installing and maintaining the battery cell modules in the battery pack.

[0006] In a first aspect, an embodiment of the present application provides a battery pack housing, wherein the battery pack further includes a battery cell module, and the housing includes:

[0007] A box body, wherein a side wall of the box body is provided with a plurality of mounting surfaces, the plurality of mounting surfaces are spaced apart along the height direction of the box body, and the mounting surfaces are perpendicular to the height direction of the box body;

[0008] There are multiple supporting plates corresponding one to one with the installation surfaces. The supporting plates are supported and fixed on the corresponding installation surfaces. Both sides of the supporting plates along the height direction of the box body are formed with placement spaces for accommodating the battery cell modules. The supporting plates and the bottom wall of the box body are both used to set the battery cell modules.

[0009] In a possible implementation, the carrying plate and the mounting surface are detachably connected.

[0010] In a possible implementation, a first connection hole is provided on the mounting surface, a second connection hole is provided on the supporting plate, and the supporting plate and the box body are connected by fasteners passing through the first connection hole and the second connection hole.

[0011] In a possible implementation, the box body includes two first side walls that are opposite to each other along the width direction of the box body.

[0012] The first side wall is provided with a plurality of mounting protrusions protruding inwardly along the width direction of the box body, the plurality of mounting protrusions are spaced apart along the height direction of the box body, and the upper surfaces of the mounting protrusions constitute the mounting surface.

[0013] The plurality of mounting protrusions divide the first side wall into a plurality of segments. Along the width direction of the box body, the distance between two opposite segments located at the lower side of the mounting protrusion is smaller than the distance between two opposite segments located at the upper side of the mounting protrusion.

[0014] In a possible implementation, both side edges of each carrier plate along the width direction of the box body are spaced from the segments on both sides of the carrier plate, so that a wiring space is defined between the segments and the battery cell modules arranged on the carrier plate.

[0015] In a possible implementation, the thicknesses of any two adjacent segments in the plurality of segments are not equal.

[0016] In a possible implementation, the top end surface of the side wall constitutes one of the mounting surfaces.

[0017] In a possible implementation, the carrier plate is a liquid cooling plate, and a cooling channel is defined on the inner side of the carrier plate, and the cooling channel is suitable for circulating a cooling liquid.

[0018] In a possible implementation, the distance between two adjacent supporting plates is greater than the height of the battery cell module.

[0019] In a second aspect, an embodiment of the present application provides a battery pack, comprising:

[0020] A box of a battery pack according to any one of the above possible embodiments;

[0021] The battery module is multiple and is respectively arranged on the supporting plate and the bottom wall of the box body.

[0022] In a third aspect, an embodiment of the present application provides an electrical device comprising the above-mentioned battery pack.

[0023] The embodiments of the present application have at least the following beneficial effects: by providing multiple mounting surfaces on the side walls of the box body and providing corresponding supporting plates on the mounting surfaces to form a multi-layer mounting structure, it can be adapted to accommodate battery modules of different sizes and configurations, thereby improving space utilization. By providing supporting plates for supporting battery modules on the mounting surfaces, the installation and removal of the battery modules are made more convenient, avoiding the difficulty of removing the battery modules due to the integral molding of the fixing frame and the box body, thereby improving the convenience of installing and maintaining the battery modules in the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0025] Figure 1 A schematic diagram of the structure of the battery pack provided for this application;

[0026] Figure 2 A schematic diagram of the partial structure of the battery pack provided in this application.

[0027] Description of reference numerals:

[0028] 10. Battery pack;

[0029] 100, box body; 110, first side wall; 111, mounting protrusion; 112, segments; 112a, first segment; 112b, second segment; 112c, third segment; 1111, mounting surface; 120, load-bearing plate;

[0030] 200. Battery cell module. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions in this application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0032] The terms "first", "second", "third", "fourth" and the like (if any) in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the implementation of the application described herein, for example, can be implemented in an order other than those illustrated or described herein. In the embodiments of the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations or descriptions. Any embodiment or design described in this application as "exemplary" or "for example" should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete way.

[0033] The cell modules in existing battery packs are typically secured by a bracket or placed directly on the bottom of the pack body. The bracket is fixed to the pack body through integral molding or welding. However, the cell modules in existing battery packs are difficult to install and maintain, and disassembly and replacement are cumbersome.

[0034] In view of this, the embodiments of the present application provide a battery pack box, a battery pack, and an electrical device. By providing multiple mounting surfaces on the side walls of the box body and providing corresponding supporting plates on the mounting surfaces, a multi-layer mounting structure is formed, which can be adapted to battery modules of different sizes and configurations, thereby improving space utilization. By providing supporting plates for supporting battery modules on the mounting surfaces, the installation and removal of the battery modules are made more convenient, avoiding the difficulty of removing the battery modules due to the integral molding of the fixing frame and the box body, thereby improving the convenience of installing and maintaining the battery modules in the battery pack.

[0035] Reference below Figure 1 The present invention provides a battery pack housing, including a housing body 100. The housing body 100 can be made of a high-strength material, such as aluminum alloy or stainless steel, to ensure sufficient strength and lightweight. The housing body 100 is rectangular or cuboid in shape and can be connected to other components to form a closed structure for protecting the battery cell module 200 and other components therein.

[0036] The side wall of the box body 100 is provided with a plurality of mounting surfaces 1111 , which are spaced apart along the height direction of the box body, and the mounting surfaces 1111 are perpendicular to the height direction of the box body.

[0037] For ease of description, Figure 1 As shown, the height direction of the box body can be defined by the Z direction. Of course, in some examples, the Z direction can also be a direction perpendicular to the mounting surface 1111 or perpendicular to the carrier plate 120. The width direction of the box body can be defined by the X direction. Of course, in some examples, the Z direction can also be a direction perpendicular to the side wall of the box body 100. The length direction of the first side wall 110 of the box body 100 can be defined by the Y direction. Of course, in some examples, the Y direction can also be the mounting direction of the carrier plate 120 or the battery cell module 200.

[0038] That is to say, the side wall of the box body 100 can be provided with a plurality of mounting surfaces 1111 along the Z direction, and the mounting surfaces 1111 are used to install the carrier plate 120. By providing a plurality of mounting surfaces 1111 spaced apart along the height direction (i.e., the Z direction) on the side wall of the box body 100, vertical stacking of multi-layer battery modules 200 can be achieved, which not only can effectively utilize the space in the box body, but also can facilitate the installation and maintenance of the battery modules 200. The number of mounting surfaces 1111 can be determined according to the capacity requirements of the battery pack 10, and this application does not make specific restrictions here. In addition, the spacing between the mounting surfaces 1111 can be determined according to the heat dissipation requirements of the battery pack 10, and this application does not make specific restrictions here.

[0039] The box body also includes multiple supporting plates 120. The mounting surfaces 1111 correspond to the supporting plates 120, and each mounting surface 1111 at the same height can correspond to an identical supporting plate 120. The supporting plates 120 are supported and fixed to the corresponding mounting surfaces 1111. Both sides of the supporting plates 120 along the height direction (i.e., the Z direction) of the box body have spaces for accommodating the battery cell modules 200. The supporting plates 120 and the bottom wall of the box body 100 are both used to accommodate the battery cell modules 200.

[0040] It is understood that the carrier plate 120 provides a platform for the box body 100 to fix the battery module 200, and allows the battery module 200 to be installed or removed from both sides of the box body 100, which facilitates both the installation of the battery module 200 and subsequent maintenance. The carrier plate 120 can also form a placement space together with the side walls of the box body 100. Specifically, the carrier plate 120 is fixed to the mounting surface 1111 of the box body 100, and a space for accommodating the battery module 200 is formed between the carrier plate 120 and the side walls of the box body 100.

[0041] In a possible implementation, the supporting plate 120 and the mounting surface 1111 are detachably connected.

[0042] That is to say, when a problem occurs in a certain cell module 200 , the problematic cell module 200 can be quickly replaced by removing the corresponding carrier plate 120 without disassembling the entire battery pack 10 , thereby reducing maintenance time and cost.

[0043] In a possible implementation, a first connection hole is provided on the mounting surface 1111 , a second connection hole is provided on the supporting plate 120 , and the supporting plate 120 and the box body 100 are connected by fasteners passing through the first connection hole and the second connection hole.

[0044] Specifically, a plurality of first connection holes can be evenly distributed on the mounting surface 1111, and a plurality of second connection holes can be evenly distributed on the supporting plate 120, with the first connection holes corresponding to the second connection holes one-to-one. The first connection holes and the second connection holes can be threaded holes, and the fasteners can be screws or bolts. The first connection holes are aligned with the second connection holes, and the screws or bolts are tightened to connect the mounting surface 1111 to the supporting plate 120.

[0045] In one possible design, the carrier plate 120 and the mounting surface 1111 can be connected via a snap. Specifically, the mounting surface 1111 can be provided with a groove or snap seat. The carrier plate 120 can be provided with a protrusion or snap that matches the mounting surface 1111. The snap of the carrier plate 120 is aligned with the snap seat of the mounting surface 1111, and then pressure is applied to lock the snap, thereby connecting the carrier plate 120 to the mounting surface 1111. The carrier plate 120 and the mounting surface 1111 can be removed by applying reverse pressure to the carrier plate 120.

[0046] In another possible design, the carrier plate 120 and the mounting surface 1111 can also be connected by a clamp. Specifically, a clamp seat can be provided on the mounting surface 1111, and the clamp seat can be a metal part fixed to the mounting surface 1111. The carrier plate 120 can be provided with a clip that matches the clamp seat, and the clip is provided with a groove or hole that matches the clamp seat. Place the carrier plate 120 at a designated position on the mounting surface 1111, ensure that the clip on the carrier plate 120 is aligned with the clamp seat on the mounting surface 1111, push the carrier plate 120 so that the clip enters the groove or hole of the clamp seat, or tighten the handle on the clamp seat to achieve the connection between the carrier plate 120 and the mounting surface 1111.

[0047] In one possible design, in order to achieve rapid positioning of the battery cell module 200 and thereby facilitate the installation and removal of the battery cell module 200, a slide rail mechanism may be further provided on the carrier plate 120. Specifically, two parallel guide rails may be provided on the carrier plate 120, and the guide rails may be made of metal or plastic and have a certain width and depth. Sliders matching the guide rails may be provided on both sides of the battery cell module 200. During the installation of the battery cell module 200, the sliders of the battery cell module 200 may be aligned with the guide rails on the carrier plate 120, and then the battery cell module 200 may be pushed along the guide rails until it reaches the designated position.

[0048] In another possible design, in order to achieve rapid installation of the battery cell module 200 and thereby make the installation and disassembly of the battery cell module 200 more convenient, a spring clamping mechanism may be provided on the carrier plate 120. Specifically, a spring clamp or an elastic clamping device may be provided on the carrier plate 120. The side of the battery cell module 200 may be provided with a groove or a plane that matches the spring clamp. During the installation of the battery cell module 200, the battery cell module 200 can be placed at a designated position on the carrier plate 120 and then gently pushed in, and the spring clamp will automatically clamp. During the disassembly of the battery cell module 200, the handle or button of the spring clamp can be pulled to release the clamping force, and then the battery cell module 200 can be taken out.

[0049] In one possible implementation, refer to Figure 1 and Figure 2The box body 100 includes two first side walls 110 opposite to each other along the width direction of the box. The first side wall 110 is provided with a plurality of mounting protrusions 111 protruding inward along the width direction of the box. The plurality of mounting protrusions 111 are distributed at intervals along the height direction of the box, and the upper surface of the mounting protrusions 111 constitutes a mounting surface 1111.

[0050] Specifically, the first side wall 110 can be made of high-strength materials, such as aluminum alloy or stainless steel, to ensure sufficient strength and light weight. The first side wall 110 can be formed by bending, welding or other processing techniques, and the surface can be sprayed or anodized to prevent corrosion. The mounting protrusion 111 provided on the first side wall 110 and protruding inward along the width direction of the box body can extend to another first side wall 110 opposite to the first side wall 110 where it is located to form a protrusion along the width direction of the box body (i.e., the X direction). The height, width and length of the mounting protrusion 111 need to be determined according to the size of the carrier plate 120 and the weight of the battery module 200, and this application does not impose any specific restrictions here.

[0051] Furthermore, the upper surface of the mounting protrusion 111, i.e., the mounting surface 1111, can be polished to ensure a smooth surface so that the supporting plate 120 can be placed stably thereon. Alternatively, the mounting surface 1111 can be provided with an anti-slip texture or coating to increase friction and prevent the supporting plate 120 from shifting under vibration or impact conditions.

[0052] Continue to refer Figure 2 Multiple mounting protrusions 111 divide the first side wall 110 into several segments 112. Along the width direction of the box, the distance between two opposite segments 112 located on the lower side of the mounting protrusion 111 is smaller than the distance between two opposite segments 112 located on the upper side of the mounting protrusion 111.

[0053] In one possible design, two mounting protrusions 111 may be provided on the first side wall 110, and the two mounting protrusions 111 may divide the first side wall 110 into three sections 112. For example, along the height direction (i.e., the Z direction) of the box body from top to bottom, the three sections 112 may be divided into a first section 112a, a second section 112b, and a third section 112c.

[0054] Specifically, the spacing L1 between the two opposing third segments 112c on the lower side of the mounting protrusion 111 is smaller than the spacing L2 between the two opposing second segments 112b located on the upper side of the mounting protrusion 111. It is important to note that because the spacing between the second segments 112b is greater than the spacing between the third segments 112c, the battery cell modules 200 located in the second segments 112b can enjoy better air circulation, facilitating heat dissipation. While the spacing between the third segments 112c is smaller, due to their proximity to the bottom of the box body 100, they can supplement the heat dissipation problem through additional heat dissipation channels or heat sinks.

[0055] It is understood that by providing two mounting protrusions 111 on the first sidewall 110 to divide the sidewall into a first segment 112a, a second segment 112b, and a third segment 112c, a multi-layered, stepped, three-dimensional mounting structure can be formed. This structure fully utilizes the internal space of the box body 100, allowing more battery modules 200 to be installed within a limited volume, thereby improving the energy density of the battery pack 10. Furthermore, because the spacing between the two segments 112 located below the mounting protrusions 111 (i.e., the second segment 112b or the third segment 112c) is smaller than the spacing between the two segments 112 located above the mounting protrusions 111 (i.e., the first segment 112a or the second segment 112b), this design not only enhances the structural stability of the box body 100 but also optimizes the heat dissipation path, ensuring that heat generated by the battery modules 200 during operation is promptly dissipated. This design not only enables quick installation and convenient maintenance of the battery modules 200, but also improves the overall performance of the battery pack 10 through reasonable segment spacing.

[0056] In one possible implementation, the two side edges of each carrier plate 120 along the width direction of the box are spaced from the segments 112 on both sides of the carrier plate 120 , so that a wiring space is defined between the segments 112 and the battery cell module 200 provided on the carrier plate 120 .

[0057] It is understandable that the defined wiring space can provide sufficient space for the wires, cables, or data lines connecting the battery module 200, making wiring simpler and more orderly. This design avoids direct contact between the wires and the side walls or other components of the box body 100, reducing the risk of wear. In addition, the presence of the wiring space also provides a channel for air circulation, which helps to improve the heat dissipation environment around the battery module 200. Especially in high-power output application scenarios, good air circulation can effectively remove heat and extend the service life of the battery module 200.

[0058] In one possible implementation, refer to Figure 2 , the thicknesses of any two adjacent segments 112 are not equal.

[0059] In one possible design, the thickness of the first segment 112a is less than the thickness of the adjacent second segment 112b. The thickness of the second segment 112b is greater than or equal to the thickness of the adjacent third segment 112c. Segments 112 of different thicknesses can be designed based on the heat generation of the battery module 200 to make the heat dissipation path more reasonable. For example, a thinner segment 112 can be designed at the top of the box body 100 to facilitate heat rise and dissipation; while a thicker segment 112 can be designed at the bottom of the box body 100 to provide better structural support.

[0060] It is understood that by adjusting the thickness of each segment 112, a more reasonable weight distribution can be achieved at different heights of the box body 100. For example, placing the thicker portion at the bottom of the box body 100 can lower the center of gravity of the battery pack 10 and improve overall stability.

[0061] In another possible design, the thickness of the second segment 112b is greater than the thickness of the adjacent third segment 112c, and the thickness of the second segment 112b is also greater than the thickness of the adjacent first segment 112a. Specifically, a plurality of cavities are provided inside the second segment 112b through partitions. These cavities can be used to install additional components, such as cooling systems, sensors, control units, etc., or they can serve as part of a heat dissipation channel to enhance the overall heat dissipation effect. In addition, the second segment 112b can be connected to a connecting frame on the vehicle frame. Specifically, the second segment 112b can be provided with connecting holes, which can be provided through the height direction of the box body (i.e., the Z direction) so that the second segment 112b can be fixed to the connecting frame on the vehicle frame by bolts. The connecting holes can be designed as threaded holes so that bolts can be directly screwed in to ensure the firmness of the connection. The connecting holes can be evenly distributed on the edge of the second segment 112b or at specific positions to ensure uniform force between the box body 100 and the vehicle frame. Because the second segment 112b is relatively thick and is connected to the vehicle frame via bolts, this design can significantly enhance the overall structural stability of the box body 100. Even if the vehicle encounters bumps or collisions during driving, the battery pack 10 can remain stable, reducing the risk of damage to internal components.

[0062] In a possible implementation, the top end surface of the side wall constitutes one of the mounting surfaces 1111 .

[0063] It is understood that using the top end surface of the side wall as the mounting surface 1111 can increase the effective mounting space inside the box body 100. In addition, using the top end surface of the side wall as the mounting surface 1111 allows the battery pack 10 to have higher modular expansion capabilities.

[0064] In a possible implementation, the carrier plate 120 is a liquid cooling plate, and a cooling channel is defined inside the carrier plate 120 , where the cooling channel is suitable for circulating a cooling liquid.

[0065] In one possible design, the cooling channel can be designed as a serpentine pipe and arranged along the inner side of the carrier plate 120 to ensure that the coolant can evenly cover the battery cell module 200, thereby improving the cooling effect. The carrier plate 120 can be made of a material with good thermal conductivity, such as copper, aluminum, or a composite material, to ensure that heat can be quickly transferred to the coolant.

[0066] It can be understood that through the design of the liquid cooling plate, the heat generated by the battery cell module 200 can be directly transferred to the coolant, and then brought out of the box body 100 by the cooling system, which greatly improves the heat dissipation efficiency, ensures that the battery cell module 200 operates within the optimal temperature range, and extends the service life of the battery cell.

[0067] In a possible implementation, the distance between two adjacent carrier plates 120 is greater than the height of the battery cell module 200 .

[0068] It is understandable that the spacing between two adjacent carrier plates 120 is greater than the height of the battery module 200, making the installation and removal of the battery module 200 easier. Maintenance personnel can easily inspect, maintain, or replace a single battery module 200 without interfering with other modules, thereby improving maintenance efficiency. In addition, the spacing between two adjacent carrier plates 120 is greater than the height of the battery module 200, which can also reduce direct contact between the battery modules 200, thereby reducing the stress accumulation caused by the expansion or contraction of the battery cells and enhancing the overall structural stability of the box body 100.

[0069] In addition, the embodiment of the present application further provides a battery pack 10, comprising:

[0070] A box of a battery pack according to any one of the above possible implementations;

[0071] Battery modules, there are multiple battery modules, and the multiple battery modules are respectively arranged on the supporting plate 120 and the bottom wall of the box body 100.

[0072] The battery pack 10 of the embodiment of the present application uses the above-mentioned battery pack box, which can make the installation and removal of the battery cell module 200 more convenient.

[0073] In addition, an embodiment of the present application further provides an electrical device, including the above-mentioned battery pack 10.

[0074] The electrical equipment of the embodiment of the present application uses the above-mentioned battery pack 10, which can make the installation and disassembly of the battery module 200 more convenient, avoiding the difficulty in disassembling the battery module 200 due to the integral formation of the fixing frame and the box body 100, thereby improving the convenience of the battery module 200 during installation and maintenance.

[0075] The various embodiments or implementation methods in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.

[0076] It should be noted that phrases such as "one embodiment," "an embodiment," "exemplary embodiments," and "some embodiments" in this specification may indicate embodiments that may include a particular feature, structure, or characteristic, but not every embodiment necessarily includes that particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not.

[0077] Generally speaking, terms should be understood, at least in part, based on the context in which they are used. For example, as used herein, the term "one or more" can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense, depending at least in part on the context. Similarly, terms such as "a," "an," or "the" can also be understood to convey either singular or plural usage, depending at least in part on the context.

[0078] It should be readily understood that “on,” “above,” and “over” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something,” but also includes “on something” with intervening features or layers therebetween, and “above” or “over” includes not only the meaning of “above” or “over,” but also includes “above” or “over” with no intervening features or layers therebetween (i.e., directly on something).

[0079] Additionally, spatially relative terms, such as "below," "beneath," "beneath," "above," and the like, may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be in other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery pack box, characterized in that: The battery pack (10) further includes a battery cell module (200), and the box includes: A box body (100), wherein a side wall of the box body (100) is provided with a plurality of mounting surfaces (1111), the plurality of mounting surfaces (1111) are spaced apart along the height direction of the box body, and the mounting surfaces (1111) are perpendicular to the height direction of the box body; The supporting plates (120) are multiple and correspond one to one with the mounting surfaces (1111). The supporting plates (120) are supported and fixed on the corresponding mounting surfaces (1111). Both sides of the supporting plates (120) along the height direction of the box body are formed with placement spaces for accommodating the battery cell modules (200). The supporting plates (120) and the bottom wall of the box body (100) are used to set the battery cell modules (200).

2. The battery pack box according to claim 1, characterized in that: The supporting plate (120) and the mounting surface (1111) are detachably connected.

3. The battery pack box according to claim 2, characterized in that: A first connection hole is provided on the mounting surface (1111), a second connection hole is provided on the bearing plate (120), and the bearing plate (120) and the box body (100) are connected by fasteners passing through the first connection hole and the second connection hole.

4. The battery pack box according to claim 1, characterized in that: The box body (100) includes two first side walls (110) opposite to each other along the width direction of the box body. The first side wall (110) is provided with a plurality of mounting protrusions (111) protruding inwardly along the width direction of the box body, the plurality of mounting protrusions (111) are spaced apart along the height direction of the box body, and the upper surfaces of the mounting protrusions (111) constitute the mounting surface (1111). The plurality of mounting protrusions (111) divide the first side wall (110) into a plurality of segments (112), and along the width direction of the box body, the distance between two opposite segments (112) located below the mounting protrusions (111) is smaller than the distance between two opposite segments (112) located above the mounting protrusions (111).

5. The battery pack box according to claim 4, characterized in that: The two side edges of each carrier plate (120) along the width direction of the box body are respectively spaced from the segments (112) on both sides of the carrier plate (120), so that a wiring space is defined between the segments (112) and the battery module (200) provided on the carrier plate (120).

6. The battery pack box according to claim 4, characterized in that: The thicknesses of any two adjacent segments (112) are not equal.

7. The battery pack box according to any one of claims 1 to 6, characterized in that: The top end surface of the side wall constitutes one of the mounting surfaces (1111).

8. The battery pack box according to any one of claims 1 to 6, characterized in that: The carrier plate (120) is a liquid cooling plate, and a cooling channel is defined on the inner side of the carrier plate (120), wherein the cooling channel is suitable for circulating cooling liquid.

9. The battery pack box according to any one of claims 1 to 6, characterized in that: The distance between two adjacent supporting plates (120) is greater than the height of the battery core module (200).

10. A battery pack (10), characterized in that: include: The battery pack box according to any one of claims 1 to 9; A battery cell module (200), wherein the battery cell modules (200) are multiple, and the multiple battery cell modules (200) are respectively arranged on the supporting plate (120) and the bottom wall of the box body (100).

11. An electrical device, characterized in that: Comprising the battery pack (10) according to claim 10.

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