CN215869698U

CN215869698U - Short circuit trigger diaphragm lithium ion battery

Info

Publication number: CN215869698U
Application number: CN202122162316.9U
Authority: CN
Inventors: 李培学; 唐兵林
Original assignee: Shenzhen Spi Electronic Co ltd
Current assignee: Shenzhen Spi Electronic Co ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-02-18
Anticipated expiration: 2031-09-08

Abstract

The utility model discloses a short circuit trigger diaphragm lithium ion battery, and relates to the field of lithium ion batteries. The battery box comprises a battery box body, wherein a protective cover is arranged at the top end of the battery box body; electric core, electric core set up in the battery box, and electric core is provided with three division board in bearing the box including bearing the box, and be provided with three battery piece between the three division board and being located and bear the box, and the top of three division board all is provided with the connecting plate, and the both sides on three connecting plate top all rotate and are provided with the conducting strip, and one side of bearing the box inner wall is provided with two external polar plates, and six conducting strips carry out electric connection in proper order to three battery piece and two external polar plates. This lithium ion battery realizes establishing ties between a plurality of battery pieces through connecting plate and conducting strip, just so is different from traditional welding form for the disconnection and the connection of real serial circuit are more convenient, like this alright change with the battery piece with being easier.

Description

Short circuit trigger diaphragm lithium ion battery

Technical Field

The utility model relates to the technical field of lithium ion batteries, in particular to a short circuit triggering diaphragm lithium ion battery.

Background

With continuous innovation and development of the battery industry, the performance of the battery is more and more perfect, wherein one battery block is internally provided with a diaphragm, and the diaphragm can trigger short circuit in the wrong use process of the battery block, so that the lithium ion battery block is in a short circuit state, and the whole battery block is protected.

The design of the battery blocks is fine, the battery blocks form a large battery in a combined connection mode sometimes, the existing batteries are rarely connected in series uniformly in a battery box body, and if one battery block has a problem, the battery block is troublesome to replace.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model discloses a short circuit triggering diaphragm lithium ion battery, which aims to solve the problems in the background technology.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: a short-circuit triggered separator lithium ion battery comprising:

the battery box body is provided with a protective cover at the top end;

electric core, electric core sets up in the battery box, electric core is including bearing the box, it is three to bear and be provided with three division board in the box, it is three just to be located and bear and be provided with three battery piece in the box between the division board the top of division board all is provided with the connecting plate, and is three the both sides on connecting plate top all rotate and are provided with the conducting strip, one side of bearing the box inner wall is provided with two external polar plates, six the conducting strip carries out electric connection in proper order to three battery piece and two external polar plates.

Preferably, the top of battery box just is close to the both sides lateral symmetry at front and the back and has seted up two inserting grooves, the bottom of protective cover just is close to the equal fixedly connected with plugboard in both sides side at front and the back, two plugboard and two inserting groove sliding alternate connection, the four corners on battery box top all sets up threaded hole, four equal threaded alternate connection in the threaded hole has fastening screw.

Preferably, two insertion holes are formed in the top end of the protective cover, the two insertion holes are formed in the top of the external polar plate and are connected in an inserting mode, and wiring holes are formed in the front face of the top of the external polar plate.

Preferably, bear the inner wall symmetry of box middle part both sides and seted up two regulation spouts, it is three the equal fixedly connected with direction slider in both sides at division board middle part, six the direction slider respectively with six regulation spouts slip interlude connection.

Preferably, four adjusting springs are arranged in the adjusting sliding groove and are respectively arranged between the three guide sliding blocks and the inner walls of the front face and the back face of the adjusting sliding groove.

Preferably, three both sides on connecting plate top all are provided with rotates the post, six the bottom of one end among them is rotated the both sides of connecting at three connecting plate top through rotating the post respectively.

The utility model discloses a short circuit trigger diaphragm lithium ion battery, which has the following beneficial effects:

1. this lithium ion battery realizes establishing ties between a plurality of battery pieces through connecting plate and conducting strip, just so is different from traditional welding form for the disconnection and the connection of real serial circuit are more convenient, like this alright change with the battery piece with being easier.

2. This lithium ion battery connects with adjusting spring between division board and the junction of bearing box, utilizes adjusting spring compression deformation's characteristic like this, has realized the adjustment to battery piece clamp space, just so makes the dimensional requirement to the battery piece littleer for the application scope who bears the box is more extensive.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a protective cover according to the present invention;

fig. 3 is a schematic diagram of the connection between the battery case and the battery cell according to the present invention;

FIG. 4 is a schematic structural diagram of the carrying case of the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 4 according to the present invention;

fig. 6 is a schematic structural diagram of a battery cell according to the present invention.

In the figure: 1. a battery case; 101. inserting grooves; 2. a protective cover; 201. a plugboard; 3. a carrying box; 301. a partition plate; 302. a guide slider; 303. connecting the polar plate externally; 304. adjusting the sliding chute; 305. adjusting the spring; 4. a connecting plate; 401. a conductive sheet; 5. and a battery block.

Detailed Description

The embodiment of the utility model discloses a short circuit trigger diaphragm lithium ion battery, as shown in figures 1-6, comprising:

the battery box body 1 is provided with a protective cover 2 at the top end of the battery box body 1;

the top end of the protective cover 2 is provided with two insertion holes, the tops of the two external polar plates 303 are in insertion connection with the two insertion holes, and the front surfaces of the tops of the two external polar plates 303 are provided with wiring holes;

one of the two external electrode plates 303 serves as a positive electrode discharge guide of the battery cell, and the other serves as a negative electrode discharge guide.

Two insertion grooves 101 are symmetrically formed in the top end of the battery box body 1 and on two sides close to the front face and the back face, insertion plates 201 are fixedly connected to the bottom end of the protective cover 2 and on two sides close to the front face and the back face, the two insertion plates 201 and the two insertion grooves 101 are connected in a sliding and penetrating manner, threaded holes are formed in four corners of the top end of the battery box body 1, and fastening screws are connected in threaded penetrating manner in the four threaded holes;

the butt joint of the protective cover 2 and the battery box body 1 is realized through the splicing of the splicing plate 201 and the splicing groove 101, and then the fastening screws are used for fixing, so that the fixing of the protective cover 2 and the battery box body 1 is easier.

The battery comprises a battery core, the battery core is arranged in a battery box body 1, the battery core comprises a bearing box 3, three partition plates 301 are arranged in the bearing box 3, three battery blocks 5 are arranged between the three partition plates 301 and positioned in the bearing box 3, connecting plates 4 are arranged at the top ends of the three partition plates 301, conducting plates 401 are rotatably arranged on two sides of the top ends of the three connecting plates 4, two external polar plates 303 are arranged on one side of the inner wall of the bearing box 3, and the three battery blocks 5 and the two external polar plates 303 are sequentially and electrically connected through the six conducting plates 401;

the six conducting strips 401 are in contact connection with two connecting electrodes at the top ends of the three battery blocks 5 to realize the electrical series connection of the three battery blocks 5, and the bottoms of the two external polar plates 303 are electrically connected with the positive electrode and the negative electrode of the whole battery cell circuit on the inner wall of the bottom of the bearing box 3.

The two sides of the top ends of the three connecting plates 4 are respectively provided with a rotating column, and the bottom end of one end of each of the six conducting plates 401 is respectively and rotatably connected with the two sides of the top ends of the three connecting plates 4 through the rotating columns;

the conductive plate 401 is capable of circular rotation at the top end of the connection plate 4 by means of a rotation post.

Two adjusting sliding grooves 304 are symmetrically formed in the inner walls of the two sides of the middle of the bearing box 3, two sides of the middle of the three partition plates 301 are fixedly connected with guide sliding blocks 302, and the six guide sliding blocks 302 are respectively connected with the six adjusting sliding grooves 304 in a sliding penetrating manner;

the length and thickness of the guide slider 302 correspond to the depth and height of the adjustment runner 304.

Four adjusting springs 305 are arranged in the adjusting sliding chute 304, and the four adjusting springs 305 are respectively arranged between the three guide sliding blocks 302 and the inner walls of the front and back of the adjusting sliding chute 304;

the distance between the three partition plates 301 can be elastically adjusted by connecting the three partition plates 301 by the adjusting springs 305.

The working principle is as follows: the whole battery can be charged and discharged through the part of the two external electrode plates 303 leaking out of the top end of the protective cover 2, and when the battery block 5 needs to be replaced;

firstly opening a protective cover 2 at the top end of a battery box body 1, then rotating two conductive sheets 401 at the top end of a battery block 5 to be replaced, wherein the two conductive sheets 401 are driven by ninety degrees, then the top end of the battery block 5 to be replaced is not blocked, taking out the battery block 5, and at the moment, two separation plates 301 clamping the battery block 5 move oppositely under the action of the restoring force of an adjusting spring 305;

at this time, the two partition plates 301 need to be separated in opposite directions, then a new battery block 5 is embedded between the two partition plates 301, the force of the two partition plates 301 is released, and the two partition plates 301 clamp the battery block 5 under the pushing of the restoring force of the adjusting spring 305;

after the battery block 5 is replaced, the two conductive plates 401 are rotated at an angle of ninety degrees, so that the bottom ends of the two conductive plates 401 and the top end of the battery block 5 are in contact connection, the replaced battery block 5 is connected in series to the whole battery core circuit, and replacement of the battery block 5 is completed thoroughly.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A short-circuit triggered separator lithium ion battery comprising:

the battery box body (1), wherein a protective cover (2) is arranged at the top end of the battery box body (1);

electric core, electric core sets up in battery box (1), electric core is including bearing box (3), it is provided with three division board (301) in box (3) to bear, it is three just to be located between division board (301) and bear and be provided with three battery piece (5), it is three the top of division board (301) all is provided with connecting plate (4), and is three the both sides on connecting plate (4) top are all rotated and are provided with conducting strip (401), one side of bearing box (3) inner wall is provided with two external polar plate (303), six conducting strip (401) carry out electric connection in proper order to three battery piece (5) and two external polar plate (303).

2. The short-circuit triggered separator lithium ion battery according to claim 1, wherein: the battery box is characterized in that two insertion grooves (101) are symmetrically formed in the top end of the battery box body (1) and close to the two sides of the front face and the back face, the bottom end of the protective cover (2) is close to the insertion plates (201) fixedly connected with the two sides of the front face and the back face, the insertion plates (201) are slidably and alternately connected with the two insertion grooves (101), threaded holes are formed in the four corners of the top end of the battery box body (1), and four fastening screws are alternately connected with the threaded holes in an equal threaded manner.

3. The short-circuit triggered separator lithium ion battery according to claim 1, wherein: two sockets of wearing, two have been seted up on the top of protective cover (2) the top and two sockets of wearing of external polar plate (303) alternate the connection, and two the wiring hole has all been seted up in the front at external polar plate (303) top.

4. The short-circuit triggered separator lithium ion battery according to claim 1, wherein: bear box (3) middle part both sides inner wall symmetry and seted up two regulation spouts (304), it is three the equal fixedly connected with direction slider (302) in both sides at division board (301) middle part, six direction slider (302) are connected with six regulation spouts (304) slip interlude respectively.

5. The short-circuit triggered separator lithium ion battery according to claim 4, wherein: four adjusting springs (305) are arranged in the adjusting sliding groove (304), and the four adjusting springs (305) are respectively arranged between the three guide sliding blocks (302) and the inner walls of the front surface and the back surface of the adjusting sliding groove (304).

6. The short-circuit triggered separator lithium ion battery according to claim 1, wherein: the two sides of the top end of the connecting plate (4) are provided with rotating columns, and the bottom end of one end of each of the six conducting plates (401) is rotatably connected to the two sides of the top end of the three connecting plates (4) through the rotating columns.