CN214411390U

CN214411390U - Battery box structure

Info

Publication number: CN214411390U
Application number: CN202022610631.9U
Authority: CN
Inventors: 郭辉; 李俊鹏; 杨加伟; 高小满
Original assignee: Luoyang Zhongjia Control Technology Co ltd
Current assignee: Luoyang Jiasheng Electric Control Technology Co.,Ltd.
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-10-15
Anticipated expiration: 2030-11-12

Abstract

The utility model provides a battery box body structure, which comprises a front side plate, a left side plate, a rear side plate, a right side plate, a first connecting block, a second connecting block, a third connecting block and a fourth connecting block, wherein the front side plate comprises a left front side plate and a right front side plate; the left front side plate, the first connecting block, the left side plate, the second connecting block, the rear side plate, the third connecting block, the right side plate and the fourth connecting block are connected in sequence and are integrally bent and formed; the left front side plate is connected with the right front side plate. The utility model discloses an integrative shaping of bending, connecting block and curb plate integrated into one piece, box intensity reinforcing, the leakproofness is strengthened, and the welding process reduces and can save process time simultaneously, raises the efficiency, and used anchor clamps are simple, processing easy operation.

Description

Battery box structure

Technical Field

The utility model relates to a battery box field especially indicates a battery box structure.

Background

With the rapid development of new energy technology, the demand for batteries is increasing, and particularly in the electric vehicle industry, the battery technology becomes a key technology in the electric vehicle technology. The battery box is required to be used when the battery is installed on the electric vehicle, the battery box is required to have enough strength to support the battery, the sealing effect is guaranteed, and the self weight is reduced as far as possible. The existing aluminum alloy extruded profile battery box is basically welded after four plate surfaces are spliced, so that more parts are needed, and the splicing process is complex; the vertical welding beads on the periphery of the battery box body are more after welding, the aluminum alloy is non-ferrous metal, and the requirement on welding quality is relatively high; after welding, the material strength is reduced, welding passes are more, and the failure risk is higher; after welding, the requirement of the welding bead part on the sealing performance is high, and the phenomena of insufficient welding, air holes and the like are required to be avoided; the splicing welding has higher requirements on the tool fixture and has stricter requirements on the process size.

In the prior patent (named as a battery box body of an electric automobile and a manufacturing method thereof), the battery box body of the electric automobile and the manufacturing method thereof are disclosed, casting molding is adopted, and then a casting part is manufactured in a cutting processing and electrophoresis mode, so that the problems of complex processing process, high casting cost and the like exist, the battery box body is not suitable for small-batch production, the material waste in the casting process is large, and the sealing property cannot be ensured.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the problem that exists among the prior art, provide a battery box structure.

The technical scheme of the utility model is realized like this:

a battery case structure comprising: the front side plate, the first connecting block, the left side plate, the second connecting block, the rear side plate, the third connecting block, the right side plate and the fourth connecting block are sequentially connected to form an integral forming structure; the front side plate consists of a left front side plate and a right front side plate; a welding gap is formed at the joint of the left front side plate and the right front side plate; the curb plate before a left side with all be equipped with short epitaxial body on the curb plate before the right side, the left side curb plate the posterior lateral plate with all be equipped with long epitaxial body on the curb plate of the right side, on the curb plate before a left side short epitaxial body with on the curb plate before the right side form epitaxial portion breach groove between the short epitaxial body, weld gap and epitaxial portion breach groove intercommunication.

Further, the left front side plate and the right front side plate are connected through welding rods, and the welding rods are located in a welding gap between the left front side plate and the right front side plate.

Further, be equipped with the bolt hole on the short epitaxial body also be equipped with a plurality of bolt hole on the long epitaxial body.

Further, still be equipped with a plurality of cavitys on the long epitaxial body, also be equipped with a plurality of cavitys on the short epitaxial body, the cavity can further reduce weight under the prerequisite of assurance intensity, and simultaneously, the cavity is incompletely sealed, can with external circulation of air, can increase the radiating effect of the bottom of the case.

Further, a first L plate is mounted on the short extension body of the left front side plate through a connecting bolt, and a second L plate is further mounted on the short extension body of the right front side plate through a connecting bolt; the first L plate and the second L plate are fixed through bolts between the plates.

First L board and second L board are fixed before the box welding, can play the fixed action when the welding, do not need to set up other anchor clamps specially and can carry out welding operation, the cost and the time of preparation anchor clamps have been reduced, use the occasion that requires not high to intensity when the box, can not weld left front side board and right front side board, first L board and second L board are fixed can satisfy the requirement, only need scribble sealed glue on former welding rod position, the course of working is simplified, the processing cost and time are reduced.

The utility model has the advantages that:

1. the structure is simple, and the processing is convenient;

2. the welding beads are fewer, and the integral bearing capacity and the self strength of the box body are effectively improved;

3. the integral air tightness of the box body and the production consistency of the box body can be effectively improved;

4. the welding amount is reduced, the processing time is reduced, and the production efficiency is improved;

5. part of parts can be recycled, and the cost is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is a schematic view of the mounting structure of the first L-shaped plate and the second L-shaped plate;

fig. 4 is a partial enlarged view of B.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

As shown in fig. 1 to 4, a battery case structure includes: the front side plate 1, the left side plate 3, the rear side plate 5, the right side plate 7, the first connecting block 2, the second connecting block 4, the third connecting block 6 and the fourth connecting block 8 are sequentially connected to form an integral forming structure; the front side plate 1 consists of a left front side plate 9 and a right front side plate 10; a welding gap is formed at the joint of the left front side plate 9 and the right front side plate 10; short extension bodies 12 are arranged on the left front side plate 9 and the right front side plate 10 respectively, long extension bodies 13 are arranged on the left side plate 3, the rear side plate 5 and the right side plate 7 respectively, an extension part gap groove is formed between the short extension body 12 on the left front side plate 9 and the short extension body 12 on the right front side plate 10, and the welding gap is communicated with the extension part gap groove; each part is formed by bending integrally, so that the structural strength of the formed box body is increased, and the sealing performance is strong; meanwhile, the welding process is reduced, so that the processing time can be saved, and the efficiency is improved.

Left side preceding curb plate 9 passes through welding rod 14 with right preceding curb plate 10 to be connected, welding rod 14 is located the weld gap between left side preceding curb plate 9 and the right preceding curb plate 10, preceding curb plate 1 divides two on the left and right, set up welding rod 14 in junction between them, replace the scheme of setting welding rod 14 in connecting block department, because the connecting block is in the turning, the welding degree of difficulty is big, the setting can reduce the welding degree of difficulty on preceding curb plate 1, the structure reduces to only a welding bead from original many welding beads, the welding time's that has significantly reduced degree of difficulty, and the production efficiency is improved.

The short extension body 12 is provided with bolt holes 11, and the long extension body 13 is also provided with a plurality of bolt holes 11.

Still be equipped with a plurality of cavitys on the long epitaxial body 13, also be equipped with a plurality of cavitys on the short epitaxial body 12, the cavity can further reduce weight under the prerequisite of assurance intensity, and simultaneously, the cavity is incompletely sealed, can with external circulation of air, can increase the radiating effect at the bottom of the case.

A first L plate 15 is arranged on the short extension body 12 of the left front side plate 9 through a connecting bolt 18, and a second L plate 16 is also arranged on the short extension body 12 of the right front side plate 10 through a connecting bolt 18; the first L-plate 15 and the second L-plate 16 are fixed by inter-plate bolts 17.

The box body structure is made of aluminum alloy, the strength of the aluminum alloy material meets requirements, the processing is easy, and meanwhile, the density of the aluminum alloy is relatively low, so that the weight of the structure can be reduced.

Example 1

As shown in fig. 3 and 4, the short extension body 12 of the left front side plate 9 is further provided with a first L-shaped plate 15, and the short extension body 12 of the right front side plate 10 is further provided with a second L-shaped plate 16; the first L-plate 1515 and the second L-plate 1616 are fixed by inter-plate bolts 17; the first L plate 1515 and the second L plate 1616 are fixed before the box body is welded, so that the fixing effect can be achieved during welding, welding operation can be performed without special arrangement of other clamps, and the cost and time for manufacturing the clamps are reduced; when the box body is applied to the occasion with low strength requirement, the left front side plate 9 and the right front side plate 10 can not be welded, the first L plate 15 and the second L plate 16 are fixed to meet the requirement, and only the position of the original welding rod 14 is required to be coated with a sealant, so that the processing process is simplified, and the processing cost and time are reduced.

When the box needs to be connected with other parts, because the epitaxial plate of preceding curb plate 1 comprises two short epitaxial bodies, intensity slightly is less than other curb plates, can install first L board 15 and second L board 16 as intensity structure spare with other parts together, if pass through welding strength with the box and have satisfied the demand, and epitaxial plate intensity also satisfies the demand, can be after the welding is accomplished, demolish part, first L board 15 and second L board 16 can reuse with first L board 15 and second L board 16.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery case structure, comprising: the front side plate, the first connecting block, the left side plate, the second connecting block, the rear side plate, the third connecting block, the right side plate and the fourth connecting block are sequentially connected to form an integral forming structure; the front side plate consists of a left front side plate and a right front side plate; a welding gap is formed at the joint of the left front side plate and the right front side plate; the curb plate before a left side with all be equipped with short epitaxial body on the curb plate before the right side, the left side curb plate the posterior lateral plate with all be equipped with long epitaxial body on the curb plate of the right side, on the curb plate before a left side short epitaxial body with on the curb plate before the right side form epitaxial portion breach groove between the short epitaxial body, weld gap and epitaxial portion breach groove intercommunication.

2. The battery case structure according to claim 1, characterized in that: the left front side plate is connected with the right front side plate through a welding rod, and the welding rod is located in a welding gap between the left front side plate and the right front side plate.

3. The battery case structure according to claim 1, characterized in that: the short extension body is provided with bolt holes, and the long extension body is also provided with a plurality of bolt holes.

4. The battery case structure according to claim 1, characterized in that: the long epitaxial body is also provided with a plurality of cavities, and the short epitaxial body is also provided with a plurality of cavities.

5. The battery case structure according to claim 1, characterized in that: a first L plate is mounted on the short extension body of the left front side plate through a connecting bolt, and a second L plate is further mounted on the short extension body of the right front side plate through a connecting bolt; the first L plate and the second L plate are fixed through bolts between the plates.