CN217035843U

CN217035843U - Shockproof battery cell structure

Info

Publication number: CN217035843U
Application number: CN202121956970.0U
Authority: CN
Inventors: 朱一虎; 何学祥
Original assignee: Guangdong Cavtop New Energy Technology Co ltd
Current assignee: Guangdong Cavtop New Energy Technology Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-07-22
Anticipated expiration: 2031-08-19

Abstract

The utility model relates to a shockproof cell structure, comprising: the shell comprises a bottom box and an upper cover; the inner surface of the upper cover is also convexly provided with a pressing part; the inner box is arranged in the shell and made of rubber; the inner box comprises an outer frame body, a limiting bracket and a support plate; the bottom end of the outer frame body is connected with the bottom box, and the top end of the outer frame body is connected with the upper cover; the limiting bracket is arranged in a Y shape and comprises a connecting part and a limiting part; one end of the connecting part, which is far away from the limiting part, is used for connecting the inner wall of the outer frame body, and the limiting part is used for connecting the corners of the carrier plate; and a battery cell mounted in the inner box; the battery cell is placed on the support plate, and the corners of the battery cell are abutted against the limiting parts; battery cell still butt according to the splenium. Above-mentioned electric core structure takes precautions against earthquakes, simple structure, convenient to use utilizes the spacing support and the support plate that the rubber material was made to bear electric core, improves the shock attenuation effect, prevents that electric core is impaired, improves conveying efficiency and transportation quality.

Description

Shockproof cell structure

Technical Field

The utility model relates to the technical field of battery cell packaging and transportation, in particular to a shockproof battery cell structure.

Background

The outer packaging material of the battery core has the function of providing a closed space for containing the active substances of the battery, and simultaneously providing certain mechanical strength and mechanical protection. The structure of the battery core is generally that a positive plate, a negative plate and a diaphragm are wound into a roll core and then sleeved in an aluminum-plastic film, and the aluminum-plastic film is used as an outer package.

However, the mechanical strength of the aluminum-plastic film is not as good as that of the steel shell or the aluminum shell, the cell is inevitably subjected to vibration during transportation, and the aluminum-plastic film is easily broken or pierced after being collided or rubbed, so that the quality of the cell is affected.

SUMMERY OF THE UTILITY MODEL

Therefore, the shockproof battery cell structure provided by the utility model is simple in structure and convenient to use, can effectively protect the battery cell, prevents the battery cell from being damaged, and improves the transportation efficiency and the transportation quality.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:

a shockproof cell structure comprising:

the shell comprises a bottom box and an upper cover which is matched with the bottom box and covered with the bottom box; the inner surface of the upper cover is also convexly provided with a pressing part;

the inner box is arranged in the shell and made of rubber; the inner box comprises an outer frame body, limiting brackets connected to the four opposite corners inside the outer frame body and a carrier plate connected to the limiting brackets; the bottom end of the outer frame body is connected with the bottom box, and the top end of the outer frame body is connected with the upper cover;

the limiting bracket is arranged in a Y shape and comprises a connecting part and a limiting part connected to one end of the connecting part; one end of the connecting part, which is far away from the limiting part, is used for connecting the inner wall of the outer frame body, and the limiting part is used for connecting corners of the carrier plate; and

the battery cell is arranged in the inner box; the battery cell is placed on the support plate, and the corner of the battery cell is abutted against the limiting part; the battery cell is also abutted to the pressing part.

Above-mentioned electric core structure takes precautions against earthquakes, simple structure, convenient to use utilizes the spacing support that the rubber material was made and support plate to bear electric core, improves the shock attenuation effect, prevents that electric core is impaired, improves conveying efficiency and transportation quality.

In one embodiment, the outer shell further comprises a first inner wall extending vertically upwards from the inside of the bottom box and a second inner wall extending vertically downwards from the inside of the upper cover; a first alignment groove is formed between the first inner wall and the side wall of the bottom box, and a second alignment groove is formed between the second inner wall and the side wall of the upper cover; the bottom end of the outer frame body is correspondingly inserted into the first aligning groove, and the top end of the outer frame body is correspondingly inserted into the second aligning groove.

In one embodiment, the carrier plate is provided with a plurality of first through grooves and a plurality of second through grooves at uniform intervals; the first through grooves and the second through grooves are arranged in a staggered mode.

In one embodiment, one end of the first through groove exceeds the midline in the width direction of the carrier plate, and one end of the second through groove exceeds the midline in the width direction of the carrier plate.

In one embodiment, the height of the limiting bracket is smaller than that of the outer frame body.

In one embodiment, the inner surfaces of two opposite sides of the outer frame body are respectively provided with buffer pads in a protruding manner, and the buffer pads are used for abutting against two opposite sides of the soft package of the battery cell.

In one embodiment, the outer surface of the bottom box is provided with clamping blocks at intervals in a protruding manner; lugs extend downwards on the outer surface of the upper cover at intervals, and clamping holes are formed in the bottom ends of the lugs; the inner surface of the bottom end of the lug is attached to the outer surface of the bottom box, and the clamping hole and the clamping block are mutually buckled.

Drawings

Fig. 1 is a schematic perspective view of a shockproof cell structure according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of the shock-resistant cell structure shown in fig. 1;

fig. 3 is an exploded view from another perspective of the shock protection cell structure shown in fig. 2;

fig. 4 is a schematic perspective view of an inner box in the shockproof cell structure shown in fig. 2;

fig. 5 is a cross-sectional view of the shock-resistant cell structure shown in fig. 1.

Reference is made to the accompanying drawings in which:

10-shell, 11-bottom box, 12-first inner wall, 13-upper cover, 14-second inner wall, 15-fixture block, 16-lug, 17-fixture hole, 18-pressing part;

20-an inner box, 21-an outer frame body, 22-a limiting bracket, 221-a connecting part, 222-a limiting part, 23-a carrier plate, 231-a first through groove, 232-a second through groove and 24-a buffer pad;

30-battery core, 31-battery core soft package and 32-pole ear.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Referring to fig. 1 to 5, a shockproof battery cell structure according to an embodiment of the utility model includes a housing 10, an inner case 20 installed in the housing 10, and a battery cell 30 installed in the inner case 20.

The housing 10 includes a bottom case 11, a first inner wall 12 extending vertically upward from the inside of the bottom case 11, an upper cover 13 covering the bottom case 11 in a matching manner, and a second inner wall 14 extending vertically downward from the inside of the upper cover 13. A first alignment groove is formed between the first inner wall 12 and the side wall of the bottom box 11, a second alignment groove is formed between the second inner wall 14 and the side wall of the upper cover 13, and the second alignment groove is opposite to the first alignment groove. Wherein, the bottom of box 20 in first counterpoint groove is used for corresponding the card to establish, and the top of box 20 in the second counterpoint groove is used for corresponding the card to establish to box 20 installs between end box 11 and upper cover 13 in will.

As shown in fig. 2 and 3, in the present embodiment, the latch 15 is protruded from the outer surface of the bottom case 11 at an interval. Lugs 16 extend downwards at intervals on the outer surface of the upper cover 13, and clamping holes 17 are formed at the bottom ends of the lugs 16. During assembly, the bottom end of the upper cover 13 abuts against the top end of the bottom box 11, the inner surface of the bottom end of the lug 16 is attached to the outer surface of the bottom box 11, and the clamping hole 17 and the clamping block 15 are mutually clamped, so that the upper cover 13 is tightly connected with the bottom box 11.

Further, the inner surface of the upper cover 13 is further provided with a pressing portion 18 in a protruding manner, and the pressing portion 18 is used for abutting against the battery cell 30, so as to ensure that the battery cell 30 can be stably accommodated in the inner box 20.

In this embodiment, the inner case 20 is made of rubber. The inner box 20 includes an outer frame 21, a limit bracket 22 connected to four opposite corners inside the outer frame 21, and a carrier plate 23 connected to the limit bracket 22. The bottom end of the outer frame 21 is connected to the bottom case 11, and the top end of the outer frame 21 is connected to the upper cover 13, specifically, the bottom end of the outer frame 21 is correspondingly inserted into the first alignment groove, and the top end of the outer frame 21 is correspondingly inserted into the second alignment groove, so as to connect the inner case 20 and the outer case 10, and improve the overall waterproof performance. As shown in fig. 2 to 4, the stopper bracket 22 is provided in a substantially Y shape, and the height of the stopper bracket 22 is smaller than the height of the outer frame 21.

Specifically, the limiting bracket 22 includes a connecting portion 221 and a limiting portion 222 connected to one end of the connecting portion 221; one end of the connecting portion 221, which is away from the limiting portion 222, is used for connecting the inner wall of the outer frame 21, the limiting portion 222 is used for connecting the corner of the carrier plate 23, and the limiting portion 222 is used for aligning and abutting against the corner of the battery cell 30. Because the limiting bracket 22 is also made of rubber, namely the connecting part 221 has certain elasticity, the connecting part 221 can relatively shake to absorb shock when the shock happens in the transportation process, and the transportation efficiency and the transportation quality are improved.

As shown in fig. 4, the carrier plate 23 is uniformly provided with a plurality of first through grooves 231 and a plurality of second through grooves 232 at intervals; the first through grooves 231 and the second through grooves 232 are arranged in a staggered manner. Further, one end of the first through groove 231 exceeds the middle line of the carrier plate 23 in the width direction, and one end of the second through groove 232 exceeds the middle line of the carrier plate 23 in the width direction. In practical use, the carrier plate 23 is used for carrying the battery cell 30, and under the action of the first through groove 231 and the second through groove 232, the carrier plate 23 has a gathering function, so that the battery cell 30 can be kept accommodated in the carrier plate 23.

Furthermore, in order to prevent the battery cell 30 from shaking greatly in the inner box 20, cushions 24 are respectively convexly provided on the inner surfaces of two opposite sides of the outer frame 21, and the cushions 24 are used for abutting against the battery cell 30; the thickness of the cushion pad 24 is smaller than the minimum distance between the outer frame body 21 and the stopper 222.

The battery cell 30 includes a soft battery cell package 31 and two tabs 32 connected to one end of the soft battery cell package 31. In this embodiment, as shown in fig. 2, during the assembly, two utmost points ear 32 turn over the book and paste the one side of establishing the soft package of battery 31 after, and on the support plate 23 was placed to the soft package of battery 31, the spacing portion 222 of the relative four corners butt of the soft package of battery 31 respectively to form spacingly. The soft package of battery core 31 still butt presses splenium 18 to prevent that the soft package of battery core 31 from taking place to shake by a wide margin in shell 10, can reduce the vibrations influence in the transportation relatively. If the vibration amplitude is too big, the buffer pad 24 is used for abutting against the two opposite sides of the soft package 31 of the battery core, so that the impact force can be effectively reduced, and the protection effect is improved.

Above-mentioned electric core structure takes precautions against earthquakes, simple structure, convenient to use utilizes spacing support 22 and support plate 23 that the rubber material was made to bear electric core 30, improves the shock attenuation effect, prevents that electric core 30 is impaired, improves conveying efficiency and transportation quality.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A shockproof cell structure, comprising:

the shell comprises a bottom box and an upper cover which is covered with the bottom box in a matching way; the inner surface of the upper cover is also convexly provided with a pressing part;

the inner box is arranged in the shell and made of rubber; the inner box comprises an outer frame body, limiting brackets connected to the four opposite corners inside the outer frame body, and a carrier plate connected to the limiting brackets; the bottom end of the outer frame body is connected with the bottom box, and the top end of the outer frame body is connected with the upper cover;

2. The shockproof cell structure of claim 1, wherein the housing further comprises a first inner wall extending vertically upward from inside the bottom case, and a second inner wall extending vertically downward from inside the upper cover; a first alignment groove is formed between the first inner wall and the side wall of the bottom box, and a second alignment groove is formed between the second inner wall and the side wall of the upper cover; the bottom end of the outer frame body is correspondingly inserted into the first aligning groove, and the top end of the outer frame body is correspondingly inserted into the second aligning groove.

3. The shockproof cell structure of claim 1, wherein the carrier plate is provided with a plurality of first through grooves and a plurality of second through grooves at uniform intervals; the first through grooves and the second through grooves are arranged in a staggered mode.

4. The shockproof cell structure of claim 3, wherein one end of the first through groove exceeds a median line of the carrier plate in the width direction, and one end of the second through groove exceeds a median line of the carrier plate in the width direction.

5. The shockproof cell structure of claim 1, wherein the height of the limiting bracket is less than the height of the outer frame.

6. The battery cell structure of claim 1, wherein the inner surfaces of the two opposite sides of the outer frame are respectively provided with buffer pads, and the buffer pads are configured to abut against two opposite sides of the soft package of the battery cell.

7. The shockproof cell structure of claim 1, wherein the outer surface of the bottom case is convexly provided with fixture blocks at intervals; lugs extend downwards at intervals on the outer surface of the upper cover, and clamping holes are formed in the bottom ends of the lugs; the inner surface of the bottom end of the lug is attached to the outer surface of the bottom box, and the clamping hole and the clamping block are mutually buckled.