A battery pack

Abstract

The utility model discloses a battery pack, including the box, the box outside interval installation several connecting seat, connecting seat is protruding to the direction of box outside and is connected with the lug, the side of connecting seat away from the box is the connecting face, and the side of lug close to connecting seat is the mounting surface, and the connecting face of connecting seat and the mounting surface of lug are detachably connected through the connecting piece. In the scheme, lug is detachably connected through the connecting piece, can replace lug to different vehicle platform, thereby make battery pack adapt to different mounting platform, increase the platformization design of battery pack. Connecting seat is protruding to the direction of box outside, make the connecting face of connecting seat and the space between connecting seat and the side of the box where it is, and a part structure of some lug can be located at the space, thereby saved the space occupied when battery pack installs, for some compact platform of installation space, make battery pack can also install.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery technology, and more specifically, to a battery pack. Background Technology

[0002] With new energy vehicles becoming the preferred choice for environmentally friendly travel, their core component, the power battery, is closely linked to the safety of drivers and passengers. In recent years, the popularity of electric vehicles has grown rapidly, leading to demands for improved design and production efficiency, reduced costs, and enhanced market competitiveness. Therefore, the platform-based design of power battery packs has become a primary consideration for the industry's development.

[0003] When battery packs are platformized, lifting lugs are typically installed on the outside of the battery housing to mount and connect the battery to the vehicle platform. Existing battery packs, such as the one with patent number CN220628022U, disclose a battery pack including a housing, individual cells, lifting lugs, and a first connecting assembly. The housing includes multiple load-bearing beams connected together to define a cavity; the individual cells are disposed within the cavity; the lifting lugs have first through holes; and the first connecting assembly is partially inserted through the first through hole and the load-bearing beams to screw the lifting lugs and the load-bearing beams together. However, in this design, the lifting lugs are directly connected to the housing, resulting in poor versatility in the fit between the battery pack housing structure and the lifting lugs. Utility Model Content

[0004] This utility model provides a battery pack that allows the battery pack housing structure to be connected to different lifting lugs, enabling the battery pack to be matched with different vehicle platforms.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] A battery pack includes a housing, with a plurality of connecting seats spaced apart on the outer side of the housing; the connecting seats protrude toward the outer side of the housing and are connected to lifting lugs.

[0007] The side of the connecting seat away from the housing is the connecting surface, and the side of the lifting lug near the connecting seat is the mounting surface. The connecting surface of the connecting seat and the mounting surface of the lifting lug are detachably connected by a connector.

[0008] In this design, on the one hand, the detachable connecting lugs via connectors allow for replacement of the lugs for different vehicle platforms, thus enabling the battery pack to adapt to various installation platforms and increasing the platform-based design of the battery pack. On the other hand, the connecting seat protrudes outwards from the housing, creating a space between the connecting surface of the connecting seat and the side of the housing on which it is located. Part of the structure of some lugs can be located in this space, thereby saving space occupied during battery pack installation. This allows for battery pack installation even on platforms with limited installation space.

[0009] As a further improvement, the lifting lug is provided with a lifting lug connection hole. After the lifting lug is connected to the connecting seat, a connection position is formed. The lifting lug connection hole is offset in the vertical or horizontal direction relative to the connection position. The position of the lifting lug connection hole can be flexibly varied according to the shape of the lifting lug, allowing the battery pack to adapt to different platform mounting points.

[0010] As a further improvement, all lifting lugs are integrally molded. Compared to some existing lifting lugs formed by sheet metal bending and welding, the integrally molded lifting lug structure has better structural strength.

[0011] As a further improvement, the lifting lug includes a first lifting lug, one end of which is provided with a first connecting hole. A first mounting surface is provided on the first lifting lug, and the first mounting surface connects with the connecting surface of the connecting seat to form a connecting position. The first connecting hole is horizontally offset relative to the connecting position. The first connecting hole is also offset towards the housing. This first lifting lug structure allows a portion of the structure to be located within the space between the connecting surface of the connecting seat and the side of the housing, thus minimizing the space occupied by the first lifting lug outside the battery pack and making it suitable for smaller mounting platforms.

[0012] As a further improvement, a first reinforcing rib is also provided on the first lifting lug, and the direction of the first reinforcing rib is consistent with the direction of the first connecting hole. The first reinforcing rib improves the structural strength of the first lifting lug.

[0013] As a further improvement, the lifting lug also includes a second lifting lug, the structure of which is symmetrically arranged with respect to the first lifting lug. The second lifting lug allows the battery pack to be adapted to a wider range of mounting platforms.

[0014] As a further improvement, the lifting lug includes a third lifting lug, on which a third mounting surface is provided. This third mounting surface connects with the connecting surface of the connecting seat to form a connecting position. The third lifting lug also has a side surface perpendicular to the third mounting surface, on which a third connecting hole is provided. This third connecting hole is offset vertically relative to the connecting position. The battery pack's connecting seat can also be fitted with the third lifting lug, and the third connecting hole on the third lifting lug is offset vertically relative to the connecting position, allowing the battery pack to further adapt to other mounting platforms.

[0015] As a further improvement, a third reinforcing rib is also provided on the side where the third connecting hole is located. The third reinforcing rib improves the structural strength of the third lifting lug.

[0016] Other technical problems that the battery pack of this utility model can solve, other technical features contained in the technical solution, and the advantages brought by these technical features will be further explained in detail with reference to the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the battery pack structure;

[0018] Figure 2 This is a schematic diagram showing the connection between the housing and the fourth lifting lug;

[0019] Figure 3 This is a schematic diagram of the first lifting lug structure;

[0020] Figure 4 This is a schematic diagram of the structure of the first lifting lug from another direction;

[0021] Figure 5 This is a schematic diagram of the third lifting lug structure;

[0022] Figure 6 This is a schematic diagram of the third lifting lug from another direction.

[0023] Label Explanation:

[0024] 1. Housing; 2. Connecting seat; 3. First lifting lug; 31. First connecting hole; 32. First mounting hole; 33. First mounting surface; 34. First reinforcing rib; 35. Bottom side; 4. Second lifting lug; 5. Third lifting lug; 51. Third connecting hole; 52. Third mounting hole; 53. Third reinforcing rib; 54. Third mounting surface. Detailed Implementation

[0025] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0026] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0027] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate for the embodiments of this application described herein.

[0028] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.

[0029] like Figure 1 and Figure 2 As shown, this embodiment provides a battery pack, including a housing 1, and in particular, a plurality of connecting seats 2 are installed at intervals around the outer perimeter of the housing 1.

[0030] See Figure 1 As shown, the housing 1 has a side along the X direction and a side along the Y direction, and connecting seats 2 are installed at intervals on both the X-direction side and the Y-direction side. However, in other cases, connecting seats 2 can also be installed at intervals on one of the X-direction side and the Y-direction side. The connecting seats 2 can be fixedly installed on the outside of the housing 1 by welding.

[0031] Specifically, the connecting seat 2 protrudes outward toward the outer side of the housing 1 and is connected to the lifting lug. At the same time, the side of the connecting seat 2 away from the housing 1 is the connecting surface, and the side of the lifting lug closer to the connecting seat 2 is the mounting surface. The connecting surface of the connecting seat 2 and the mounting surface of the lifting lug are detachably connected by a connector.

[0032] On the one hand, the connecting parts, typically bolts, are used to detachably connect the lifting lugs, allowing for replacement of the lugs for different vehicle platforms, thus adapting the battery pack to various installation platforms. On the other hand, the connecting seat 2 protrudes outwards from the housing 1, creating a certain gap between the connecting surface of the connecting seat 2 and the side of the housing where it is located. This gap forms a space where, in some cases, a portion of the lifting lug structure can be located, saving space during battery pack installation. This allows for battery pack installation even on platforms with limited installation space.

[0033] As a further improvement, a lifting lug connection hole is provided on the lifting lug, which is used to connect the lifting lug to the vehicle platform. After the lifting lug is connected to the connecting seat 2, a connection position is formed, and the lifting lug connection hole is offset in the vertical or horizontal direction relative to the connection position.

[0034] Furthermore, the lifting lugs in this application are all integrally molded. In specific cases, the lifting lugs can be integrally molded using a casting method. Compared to some existing lifting lugs formed by sheet metal bending and welding, the lifting lugs in this application have better structural strength.

[0035] Combination Figure 3 and Figure 4 As shown in the illustration, in one specific embodiment, the lifting lug includes a first lifting lug 3, one end of which is provided with a first connecting hole 31, which is the lifting lug connection hole. A first mounting surface 33 is provided on the first lifting lug 3, and the first mounting surface 33 connects with the connecting surface of the connecting seat 2 to form a connection position. The first connecting hole 31 is offset horizontally relative to the connection position. Furthermore, the first connecting hole 31 is also offset towards the direction closer to the housing 1.

[0036] In this scheme, one end of the mounting surface of the first lifting lug 3 is connected to the connecting surface of the connecting seat 2 through the first mounting surface 33; the other end of the first lifting lug 3, where the connecting hole is located, first extends in the direction along the plane of the connecting surface and then extends in the direction close to the box body, and a first connecting hole 31 is provided at this end.

[0037] A portion of the structure of the first lifting lug 3 is disposed in the space between the connecting surface of the connecting seat 2 and the side of the housing on which the connecting seat 2 is located, so that the first lifting lug 3 can occupy less space outside the battery pack and can be used on a smaller installation platform.

[0038] In order to improve the structural strength of the first lifting lug 3, a first reinforcing rib 34 is also provided on the first lifting lug 3. The extension direction of the first reinforcing rib 34 is consistent with the direction of the first connecting hole 31, so that the first reinforcing rib 34 can connect the upper and lower structures of the first lifting lug 3.

[0039] In other embodiments of this implementation, the lifting lug also includes a second lifting lug 4, the structure of which is axially symmetrical with that of the first lifting lug 3. Figure 1 As shown, depending on the connection position of the lifting lugs on the side of the housing 1 along the X direction, a first lifting lug 3 or a second lifting lug 4 can be installed on the connecting seat 2. For example, there are three connecting seats 2 on this side of the housing 1, with the second lifting lug 4 connected to the middle connecting seat 2 and the first lifting lug 3 connected to the other two connecting seats 2. In this case, the spacing of the lifting lug connection holes on the three lifting lugs is different, but because of the connecting seats 2, the spacing between the connecting seats 2 is the same, which still ensures that the force on this side of the housing is even. Moreover, through the structure of the first lifting lug 3 and the second lifting lug 4, the lifting lug connection holes are offset relative to the connection position in the X direction, which greatly saves the space occupied by the battery pack in the Y direction.

[0040] Combination Figure 5 and Figure 6 As shown, in another embodiment, the lifting lug includes a third lifting lug 5, on which a third mounting surface 54 is provided. The third mounting surface 54 connects with the connecting surface of the connecting seat 2 to form a connecting position. The third lifting lug 5 also has a side surface perpendicular to the third mounting surface 54, on which a third connecting hole 51 is provided. The third connecting hole 51 is the lifting lug connecting hole, and it is offset vertically relative to the connecting position. Due to the provision of the connecting seat 2, the connecting seat 2 can also be matched and connected with the third lifting lug 5. Furthermore, in conjunction with... Figure 1 and Figure 2 As shown, when the third lug 5 is installed with the connecting seat 2, the third connecting hole 51 can be located on the upper side of the connecting seat 2 or on the lower side of the connecting seat 2, depending on the position of the vehicle platform.

[0041] Similarly, in order to improve the structural strength of the third lifting lug 5, a third reinforcing rib 53 is also provided on the side where the third connecting hole 51 is located, which also improves the structural strength of the connection point between the third connecting hole 51 and the platform during installation.

[0042] The terms “installation,” “setup,” “equipped with,” and “connection” used herein should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0043] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A battery pack, comprising a housing (1), characterized in that: A number of connecting seats (2) are installed at intervals on the outside of the box (1); the connecting seats (2) protrude outward toward the outside of the box (1) and are connected to the lifting lugs; The side of the connecting seat (2) away from the housing (1) is the connecting surface, and the side of the lifting lug close to the connecting seat (2) is the mounting surface. The connecting surface of the connecting seat (2) and the mounting surface of the lifting lug are detachably connected by a connector.

2. The battery pack according to claim 1, characterized in that: The lug is provided with a lug connection hole. After the lug is connected to the connecting seat (2), a connection position is formed. The lug connection hole is offset in the vertical or horizontal direction relative to the connection position.

3. The battery pack according to claim 2, characterized in that: All the lifting lugs are integrally molded.

4. The battery pack according to claim 3, characterized in that: The lifting lug includes a first lifting lug (3), one end of which is provided with a first connecting hole (31), and a first mounting surface (33) is provided on the first lifting lug (3). The first mounting surface (33) is connected to the connecting surface of the connecting seat (2) to form a connecting position, and the first connecting hole (31) is offset horizontally relative to the connecting position.

5. The battery pack according to claim 4, characterized in that: The first connection hole (31) is also offset toward the housing (1).

6. The battery pack according to claim 4, characterized in that: The first lifting lug (3) is also provided with a first reinforcing rib (34), and the extension direction of the first reinforcing rib (34) is consistent with the direction of the first connecting hole (31).

7. The battery pack according to any one of claims 4-6, characterized in that: The lifting lug also includes a second lifting lug (4), the structure of which is symmetrical to that of the first lifting lug (3).

8. The battery pack according to claim 3, characterized in that: The lifting lug includes a third lifting lug (5), and a third mounting surface (54) is provided on the third lifting lug (5). The third mounting surface (54) is connected to the connecting surface of the connecting seat (2) to form a connecting position.

9. The battery pack according to claim 8, characterized in that: The third lug (5) is also provided with a side surface perpendicular to the third mounting surface (54), and a third connecting hole (51) is provided on the side surface. The third connecting hole (51) is offset in the vertical direction relative to the connecting position.

10. The battery pack according to claim 9, characterized in that: A third reinforcing rib (53) is also provided on the side where the third connecting hole (51) is located.

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