CN220439785U

CN220439785U - Battery box with integral lifting lug

Info

Publication number: CN220439785U
Application number: CN202321483082.0U
Authority: CN
Inventors: 周文静; 柳家福; 陈碧毅; 王锦彬; 陈晓冰; 叶伟宏; 王学舟; 骆俊勇
Original assignee: Xiamen Jinlong Automobile New Energy Technology Co ltd
Current assignee: Xiamen Jinlong Automobile New Energy Technology Co ltd
Priority date: 2023-06-12
Filing date: 2023-06-12
Publication date: 2024-02-02
Anticipated expiration: 2033-06-12

Abstract

The utility model discloses a battery box body with an integrated lifting lug, and relates to the technical field of electric automobiles, comprising a box body, a frame and a supporting beam; the frame is fixedly arranged on the outer side wall of the box body, the supporting beams are vertically connected to the frame, and a plurality of mounting holes for connecting the frame are formed in the supporting beams at intervals along the length direction of the supporting beams. According to the utility model, the integrated supporting beam is adopted to replace a plurality of lifting lugs which are arranged independently in the prior art, and after the battery box body is arranged on the frame, the stress of each mounting hole of the supporting beam can be uniformly transmitted to the supporting beam and the frame, so that the effect of the integrated lifting lug is achieved, the structural strength of a stress point is effectively improved, and the problems of single-point stress and insufficient structural strength of the lifting lugs due to independent arrangement in the prior art are solved.

Description

Battery box with integral lifting lug

Technical Field

The utility model relates to the technical field of electric automobiles, in particular to a battery box body with an integrated lifting lug.

Background

The power battery is an important part of the electric automobile, and the performance of each aspect directly influences the safety of the whole automobile. Most of the existing power batteries are arranged on a vehicle chassis, in the running process of an automobile, the chassis is often bumpy and shakes due to complex and changeable road environments, and if the power batteries are improperly protected, the battery pack is damaged due to collision. Therefore, the battery case is an important part for protecting the power battery, and the design of the structural strength thereof is particularly important.

The both sides of current battery box are equipped with a plurality of lugs generally, and the battery box adopts the mode of holding in the palm dress or hoist and mount to set firmly on the frame through the lug. The lifting lug is a main stress point of the power battery, the stress is large, and the fatigue failure risk is high. Because the lug adopts welded mode to set firmly one by one in the battery box lateral wall among the prior art, consequently the battery box installs behind the frame, and every lug is single-point stress state, has the problem that structural strength is not enough, when battery module weight is great or the vehicle jolts comparatively seriously, the lug breaks with the junction of battery box easily, influences whole car stability and security.

Disclosure of Invention

The utility model provides a battery box body with an integrated lifting lug, and mainly aims to solve the problems in the prior art.

The utility model adopts the following technical scheme:

a battery box body with an integrated lifting lug comprises a box body, a frame and a supporting beam; the frame is fixedly arranged on the outer side wall of the box body, the supporting beams are vertically connected to the frame, and a plurality of mounting holes for connecting the frame are formed in the supporting beams at intervals along the length direction of the supporting beams.

Further, the support beam comprises an upper support beam and a lower support beam which are L-shaped; the upper support beam is welded to the frame; one side of the lower supporting beam is welded to the bottom of the box body, the other side of the lower supporting beam is welded to the outer side edge of the upper supporting beam, and a closed cavity is formed between the lower supporting beam and the upper supporting beam.

Further, the frame is provided with a flanging which vertically extends into the cavity and is bonded and welded to the lower supporting beam.

Further, the support beam is internally provided with a hollow cavity, and the position of the cavity corresponding to each mounting hole is provided with a support piece.

Further, the mounting holes comprise a plurality of pairs of supporting holes which are arranged at intervals; the support piece comprises a support plate with a shape like a Chinese character 'ji', and the support plate is arranged at the position of the cavity corresponding to each pair of supporting holes.

Further, a sleeve is embedded in each supporting hole.

Further, the mounting holes further comprise a plurality of mutually spaced hoisting holes; the supporting piece further comprises supporting blocks, and the supporting blocks are arranged at the positions of the cavities corresponding to the hoisting holes.

Further, the novel box comprises a corner protection plate, the corner protection plates are arranged at four corners of the box body, and two ends of the supporting beam are fixedly welded to the corner protection plate.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the integrated supporting beam is adopted to replace a plurality of lifting lugs which are arranged independently in the prior art, and after the battery box body is arranged on the frame, the stress of each mounting hole of the supporting beam can be uniformly transmitted to the supporting beam and the frame, so that the effect of the integrated lifting lug is achieved, the structural strength of a stress point is effectively improved, and the problems of single-point stress and insufficient structural strength of the lifting lugs due to independent arrangement in the prior art are solved.

2. The upper supporting beam, the supporting piece, the flanging of the frame and the lower supporting beam jointly form the supporting beam with the four-layer cavity structure, so that the overall structural strength of the supporting beam is improved, the structural strength of each mounting hole part is highest, the fatigue failure risk of a stress point is reduced, and the safety performance of the whole automobile is improved.

Drawings

Fig. 1 is a perspective view of the present utility model.

Fig. 2 is a second perspective view of the present utility model.

Fig. 3 is a partial schematic view of the present utility model.

FIG. 4 is an exploded view of the support beam and the frame of the present utility model.

In the figure: 1-a box body; 2-frame; 21-flanging; 3-supporting beams; 30-a cavity; 31-upper support beams; 32-a lower support beam; 33-a mounting hole; 34-lifting holes; 35-supporting plates; 36-supporting blocks; 37-sleeve; 4-corner protecting plates.

Detailed Description

Specific embodiments of the present utility model will be described below with reference to the accompanying drawings. Numerous details are set forth in the following description in order to provide a thorough understanding of the present utility model, but it will be apparent to one skilled in the art that the present utility model may be practiced without these details.

As shown in fig. 1, a battery box with an integrated lifting lug comprises a box body 1, a frame 2 and a supporting beam 3; the frame 2 is fixedly arranged on the outer side wall of the box body 1, the supporting beam 3 is vertically connected with the frame 2, and a plurality of mounting holes for connecting the frame are formed in the supporting beam 3 at intervals along the length direction of the supporting beam. According to the utility model, the integrated supporting beam 3 is adopted to replace a plurality of lifting lugs which are independently arranged in the prior art, and after the battery box body is arranged on the frame, the stress of each mounting hole of the supporting beam 3 can be uniformly transmitted to the supporting beam 3 and the frame 2, so that the effect of the integrated lifting lug is achieved, the structural strength of a stress point is effectively improved, and the problems of single-point stress and insufficient structural strength of the lifting lugs due to independent arrangement in the prior art are solved.

As shown in fig. 1 to 4, the support beam 3 includes an upper support beam 31 and a lower support beam 32 which are L-shaped; the upper support beam 31 is welded to the frame 2; one side of the lower support beam 32 is welded to the bottom of the case 1, the other side is welded to the outer side edge of the upper support beam 21, and a closed cavity 30 is formed between the lower support beam 32 and the upper support beam 31. The upper supporting beam 31 and the lower supporting beam 32 are mutually overlapped to form a closed cavity 30, so that the integral structural strength of the supporting beam 3 is effectively improved, and dust is prevented from entering.

As shown in fig. 1 to 4, the frame 2 is provided with a flange 21, and the flange 21 extends vertically into the cavity 30 and is bonded and welded to the lower support beam 32, so that the structural strength of the support beam 3 can be further improved, and the connection between the support beam 3 and the frame 2 is ensured to be more firm and reliable.

As shown in fig. 1 to 4, since the support beam 3 has a hollow cavity 30 inside, support members may be provided at the positions of the cavities corresponding to the respective mounting holes to locally increase the structural strength of the stress points. Specifically, the mounting holes comprise a plurality of pairs of supporting holes 33 which are arranged at intervals, and also comprise a plurality of hoisting holes 34 which are arranged at intervals; the supporting piece comprises supporting plates 35 with a shape like a Chinese character 'ji', and also comprises supporting blocks 36, wherein each supporting plate 35 is arranged at the position of the corresponding cavity of each pair of supporting holes 33; each support block 36 is disposed at a cavity position corresponding to each of the hoist holes 34. In addition, a sleeve 37 is embedded in each supporting hole 33 to facilitate the transmission of force of the bolts, thereby further enhancing the structural strength of the local stress points. Up to this point, upper support beam 31, support piece, turn-ups 21, the lower support beam 32 of frame 2 have constituted the supporting beam 3 that has four layers of chamber structures jointly, have improved the holistic structural strength of supporting beam 3 from this to make the structural strength at each mounting hole position reach the highest, thereby reduced the fatigue failure risk of stress point, promoted the security performance of whole car. The supporting beam 3 is provided with the supporting holes 33 and the lifting holes 34, so that the battery box body can be suitable for the installation mode of supporting and lifting, and is flexible and convenient to install and high in universality. In other embodiments, only the supporting hole 33 or the lifting hole 34 may be designed according to actual requirements.

As shown in fig. 1 to 3, four corners of the box 1 are respectively provided with a corner protection plate 4, and two ends of the supporting beam 3 are fixedly welded to the corner protection plates 4. The arrangement of the corner protection plate 4 is beneficial to improving the structural strength of the box body 1 and ensures that the connection between the supporting beam 3 and the box body 1 is firmer and more reliable.

The foregoing is merely illustrative of specific embodiments of the present utility model, but the design concept of the present utility model is not limited thereto, and any insubstantial modification of the present utility model by using the design concept shall fall within the scope of the present utility model.

Claims

1. A battery box with integral lifting lug, its characterized in that: comprises a box body, a frame and a supporting beam; the frame is fixedly arranged on the outer side wall of the box body, the supporting beams are vertically connected to the frame, and a plurality of mounting holes for connecting the frame are formed in the supporting beams at intervals along the length direction of the supporting beams; the support beam comprises an upper support beam and a lower support beam which are L-shaped; the upper support beam is welded to the frame; one side of the lower supporting beam is welded to the bottom of the box body, the other side of the lower supporting beam is welded to the outer side edge of the upper supporting beam, and a closed cavity is formed between the lower supporting beam and the upper supporting beam.

2. A battery box with integral lifting lugs as defined in claim 1, wherein: the frame is provided with a flanging which vertically extends into the cavity and is bonded and welded on the lower supporting beam.

3. A battery box with integral lifting lugs as defined in claim 1, wherein: the support beam is internally provided with a hollow cavity, and the position of the cavity corresponding to each mounting hole is provided with a support piece.

4. A battery box with integral lifting lugs as defined in claim 3, wherein: the mounting holes comprise a plurality of pairs of supporting holes which are arranged at intervals; the support piece comprises a support plate with a shape like a Chinese character 'ji', and the support plate is arranged at the position of the cavity corresponding to each pair of supporting holes.

5. A battery box with integral lifting lugs as defined in claim 4, wherein: and sleeves are embedded in the supporting holes.

6. A battery box with integral lifting lugs as defined in claim 3, wherein: the mounting holes also comprise a plurality of mutually spaced hoisting holes; the supporting piece further comprises supporting blocks, and the supporting blocks are arranged at the positions of the cavities corresponding to the hoisting holes.

7. A battery box with integral lifting lugs as defined in claim 1, wherein: the novel box comprises a box body and is characterized by further comprising corner protection plates, wherein the corner protection plates are arranged at four corners of the box body, and two ends of the supporting beam are fixedly welded to the corner protection plates.