Battery box body structure

Abstract

The utility model discloses a battery box body structure, which belongs to the technical field of power battery structures, and comprises a box body component and a switching base, the switching base comprises a connecting part which is parallel to the side wall of the box body component and is provided with a plurality of threaded holes for bolts to be screwed in; the edge of the connecting part vertically extends to form the extension part, the extension part is provided with a connecting side line far away from the connecting part, and at least part of the connecting side line of the extension part is connected to the side wall of the box body component in a welding mode. By designing the structure of the adapter base and based on the design of the threaded hole in the connecting part in the adapter base, detachable connection between the adapter base body and the lifting lug can be achieved, and further, the adapter base is used as a connecting carrier, and detachable connection between the lifting lug and the box body component is achieved through connection between the adapter base and the box body component; therefore, the design of the lifting lug can be matched with different vehicle types, and the universality of the battery box body is improved.

Description

Technical Field

[0001] This utility model belongs to the field of power battery structure technology, specifically relating to a battery box structure. Background Technology

[0002] The power battery of a new energy vehicle is fixedly connected to the vehicle chassis via lifting lugs. The battery housing, as the only component connecting the power battery system to the chassis, is also a key component of the battery system's weight. The varying dimensions and locations of the chassis mounting points, along with increasing demands for energy density, are driving the development of battery housing structures towards greater flexibility, adjustability, and lightweight design.

[0003] The existing battery box's lifting lugs are mostly connected to the frame by welding, which is not detachable and can only be adapted to a single size of vehicle, making it not universal. Utility Model Content

[0004] The purpose of this utility model is to provide a battery box structure to solve the problem of low utilization rate of the lifting lugs caused by welding of the existing battery box lifting lugs and frame as mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a battery housing structure, comprising:

[0006] The box-shaped component has a bottom wall and side walls extending vertically along the edge of the bottom wall;

[0007] Adapter base, the adapter base comprising:

[0008] The connecting part is arranged parallel to the side wall of the box component, and the connecting part is provided with multiple threaded holes for bolts to be screwed in.

[0009] An extension portion is formed by vertically extending from the edge of the connecting portion and having a connecting edge line disposed away from the connecting portion, and at least a portion of the connecting edge line of the extension portion is connected to the side wall of the housing component by welding.

[0010] By designing an adapter base structure, based on the threaded hole design on the connecting part of the adapter base, a detachable connection between the adapter base and the lifting lug can be achieved. Furthermore, by using the adapter base as a connecting carrier, the connection between the adapter base and the box component is achieved, thereby realizing a detachable connection between the lifting lug and the box component. This allows the lifting lug design to be compatible with different vehicle models, increasing the versatility of the battery box.

[0011] Furthermore, the extension portion has:

[0012] The first extension wall is connected to the side wall of the box component by welding.

[0013] Furthermore, the connecting edge of the first extension wall has a flanged portion extending along the side wall of the box component.

[0014] Furthermore, the extension also includes:

[0015] The second extension wall has an elongation extending along the bottom wall of the housing member.

[0016] The design of the flange and extension section increases the contact area between the extension section and the box components in the adapter body, ensuring the overall strength of the box structure.

[0017] Furthermore, the connecting portion is a rectangular component, the first extension wall is formed by the vertical extension of a single length edge and two width edges of the rectangular component, and the second extension wall is formed by the vertical extension of a single length edge of the rectangular component.

[0018] Furthermore, the adapter body is formed by bending.

[0019] Furthermore, the box structure also includes reinforcing plates welded to the box component, the reinforcing plates including a first plate that fits against a portion of the side wall of the box component and a second plate that fits against a portion of the bottom wall of the box component.

[0020] Furthermore, the connecting edge of the first extended wall is welded to the first piece of the reinforcing sheet, and the extended portion of the second extended wall is welded to the second piece of the reinforcing sheet.

[0021] Furthermore, each of the extended portions is provided with weight-reducing holes.

[0022] Furthermore, the box-shaped component also has a reinforcing beam structure, and both the reinforcing beam structure and the reinforcing plate are provided with weight-reducing holes.

[0023] By strengthening the battery pack body and designing weight-reducing holes, the overall strength of the battery pack structure is maintained while reducing the overall weight of the battery pack and increasing the pack capacity density. Attached Figure Description

[0024] Figure 1 This is a bottom view of the overall box structure;

[0025] Figure 2 This is a disassembled diagram showing the connection of the box-shaped components, adapter base, and lifting lugs.

[0026] Figure 3 This is a schematic diagram of the assembly of the adapter body and the housing components;

[0027] Figure 4 This is a three-dimensional schematic diagram of the box-shaped components.

[0028] In the picture:

[0029] 10. Hanging lugs;

[0030] 100. Box-shaped components; 101. Bottom wall; 102. Side walls;

[0031] 200. Adapter base; 201. Connecting part; 202. Extension part; 203. First extension wall; 203a. Flanged part; 204. Second extension wall; 204a. Extension part;

[0032] 300. Enhanced body; 301. First body; 302. Second body. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] A battery housing structure (hereinafter referred to as housing structure), with reference to Figure 4 The box component 100 includes a bottom wall 101 and a side wall 102, wherein the side wall 102 is formed by vertically extending from the bottom wall 101, and the connection between the side wall 102 and the bottom wall 101 is formed with a rounded corner structure.

[0035] Reference Figure 1 , and combine Figure 2 The box structure also includes an adapter base 200, which includes a connecting part 201 and an extension part 202 formed by the vertical extension of the edge of the connecting part 201. The connecting part 201 is arranged parallel to the side wall 102 of the box component 100, and the connecting part 201 is provided with a plurality of threaded holes for bolts to be screwed in. At the same time, the connecting part 201 and the extension part 202 respectively form a space for bolts to be screwed in. Based on this design, the lifting lug 10 can be connected to the adapter base 200 by fasteners such as bolts, and the adapter base is used as a connecting carrier to realize the detachable connection between the lifting lug 10 and the box component 100.

[0036] Reference Figure 3The extension portion 202 of the aforementioned adapter base 200 has a connecting edge line disposed away from the connecting portion 201, and at least a portion of the connecting edge line of the extension portion 202 is welded to the side wall 102 of the housing member 100. In some embodiments, the extension portion 202 of the aforementioned adapter base 200 includes a first wall portion and a second wall portion, wherein the connecting edge line of the first wall portion directly contacts the side wall 102 of the housing member 100 and is welded to the side wall 102 of the housing member 100, and the second wall portion is welded to the bottom wall 101 of the housing member 100. In some examples, the connecting edge line of the aforementioned first extension wall 203 extends along the side wall 102 of the housing member 100 to form a flange portion 20. 3a. The design of the flange 203a expands the contact area between the first extension wall 203 and the side wall 102 of the housing component 100, thereby improving the connection strength between the adapter base 200 and the housing component 100. Correspondingly, the second extension wall 204 has an elongated portion 204a that fits against the housing component 100. Based on the design of the elongated portion 204a, the contact area between the second extension wall 204 and the bottom wall 101 of the housing component 100 can be increased, thereby improving the connection strength between the adapter base and the housing component 100. In some embodiments, the connecting edges of the various parts of the extension portion 202 are connected by welding to form a complete extension portion 202 structure, and further improve the strength of the adapter base.

[0037] In some embodiments, the connecting portion 201 of the adapter base 200 is a rectangular component. In this case, the adapter base 200 is formed by bending a plate-shaped component. Correspondingly, the first extension wall 203 is formed by the two width edges and a single length edge of the rectangular component extending vertically, and the second extension wall 204 is formed by the length edge of the rectangular component extending vertically.

[0038] Reference Figure 2 and 3 The aforementioned box structure also includes a reinforcing plate 300, which is fixed to the box component 100 by welding. The reinforcing plate 300 includes a first plate 301 that is attached to a portion of the side wall 102 of the box component 100 and a second plate 302 that is attached to a portion of the bottom wall 101 of the box component 100. Correspondingly, the connecting edge of the first extension wall 203 of the aforementioned adapter base 200 is fixed to the first plate 301 of the reinforcing plate 300 by welding. The extension portion 204a of the second extension wall 204 is attached to the second plate 302 of the reinforcing plate 300 and welded together.

[0039] Reference Figure 4The aforementioned box component 100 has a reinforcing beam structure, and corresponding weight-reducing holes (e.g., round holes) are provided on the reinforcing beam structure and the aforementioned reinforcing plate 300. Corresponding to the weight-reducing holes on the reinforcing beam structure and the reinforcing plate 300, the extension portion 202 of the aforementioned adapter seat is also provided with weight-reducing holes, such as round holes at the position of the first extension wall 203 and oblong holes at the position of the second extension wall 204. Based on the design of the weight-reducing holes on the adapter seat, while playing a role in weight reduction, local water accumulation can be drained. Through the synergistic effect of the reinforcing beam structure, the reinforcing plate 300 and the weight-reducing holes on the adapter seat, the overall weight of the box structure can be reduced and the PACK capacity density can be improved.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A battery housing structure, characterized in that, include: The box-shaped component (100) has a bottom wall (101) and a side wall (102) extending vertically along the edge of the bottom wall (101); Adapter base (200), the adapter base (200) comprising: The connecting part (201) is provided parallel to the side wall (102) of the box component (100), and the connecting part (201) is provided with a plurality of threaded holes for bolts to be screwed in; An extension (202) is formed by extending vertically from the edge of the connecting portion (201) and has a connecting edge line disposed away from the connecting portion (201), and at least a portion of the connecting edge line of the extension (202) is connected to the side wall (102) of the box member (100) by welding.

2. The battery housing structure according to claim 1, characterized in that: The extension (202) has: The first extension wall (203) is connected to the side wall (102) of the box component (100) by welding.

3. The battery housing structure according to claim 2, characterized in that: The connecting edge of the first extension wall (203) has a flange (203a) that extends along the side wall (102) of the box member (100).

4. The battery housing structure according to claim 2, characterized in that: The extension (202) also includes: The second extension wall (204) has an extension (204a) extending along the bottom wall (101) of the housing member (100).

5. A battery housing structure according to claim 4, characterized in that: The connecting part (201) is a rectangular component, the first extension wall (203) is formed by the vertical extension of a single length edge and two width edges of the rectangular component, and the second extension wall (204) is formed by the vertical extension of a single length edge of the rectangular component.

6. A battery housing structure according to claim 5, characterized in that: The adapter base (200) is formed by bending.

7. A battery housing structure according to claim 5, characterized in that: The box structure also includes a reinforcing plate (300) welded to the box component (100). The reinforcing plate (300) includes a first plate (301) that is attached to a portion of the side wall (102) of the box component (100) and a second plate (302) that is attached to a portion of the bottom wall (101) of the box component (100).

8. A battery housing structure according to claim 7, characterized in that: The connecting edge of the first extension wall (203) is welded to the first piece (301) of the reinforcing sheet (300), and the extension portion (204a) of the second extension wall (204) is welded to the second piece (302) of the reinforcing sheet (300).

9. A battery housing structure according to claim 7, characterized in that: Each of the extension sections (202) has a weight-reducing hole.

10. A battery housing structure according to claim 9, characterized in that: The box component (100) also has a reinforcing beam structure, and both the reinforcing beam structure and the reinforcing plate (300) are provided with weight reduction holes.

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