CN210668582U

CN210668582U - Cylindrical explosion-proof lithium ion battery

Info

Publication number: CN210668582U
Application number: CN201921947787.7U
Authority: CN
Inventors: 桂磊; 刘高伟
Original assignee: Dongguan Xinhengkai Energy Co ltd
Current assignee: Yichun xinhengkai New Energy Technology Co., Ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-06-02
Anticipated expiration: 2029-11-13

Abstract

The utility model discloses a cylindrical explosion-proof lithium ion battery, including the lithium cell, the top cover of lithium cell lateral wall is equipped with a protection section of thick bamboo, and the bottom cover of lithium cell lateral wall is equipped with the underframe, the inside bottom fixedly connected with buffer board of underframe, and the lateral wall sliding adjustment of lithium cell has the protecting net, the top of protecting net and the interior roof fixed connection of a protection section of thick bamboo, the bottom fixedly connected with snap ring of a protection section of thick bamboo, the beneficial effects of the utility model are that: when the gas that produces reaches explosion-proof point critical value, in the twinkling of an eye with outside through, a large amount of gas is arranged outward, can release the inside powerful pressure of a protection section of thick bamboo fast, avoids explosion or reduces the explosion harm, simple structure, and shock resistance is strong, avoids the lithium cell directly to accept external shock, avoids the lithium cell to produce the damage, when needs examine or change the lithium cell, dismantles operation process simple, is convenient for inspect or change lithium ion battery.

Description

Cylindrical explosion-proof lithium ion battery

Technical Field

The utility model relates to a lithium ion battery technical field specifically is a cylindrical explosion-proof lithium ion battery.

Background

The cylindrical lithium ion battery is a secondary battery, can be repeatedly charged and discharged for use, and is widely applied to new energy automobile circuit systems. Cylindrical lithium ion battery among the prior art, the protective housing gas permeability of battery is relatively poor, breaks down when circuit system, and inside cavity is not with outside straight-through, and when gaseous can not the quick pressure release, arouses the explosion easily, and the protective housing dismantles the operation process complicacy, when changing lithium ion battery, and is very inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cylindrical explosion-proof lithium ion battery to the protective housing gas permeability of the battery that provides in solving above-mentioned background art is relatively poor, breaks down when circuit system, and when gaseous can not the quick pressure release, arouses the explosion easily, and it is complicated to dismantle the operation process, when changing lithium ion battery, and the problem that is very inconvenient.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a cylindrical explosion-proof lithium ion battery, includes the lithium cell, the top cover of lithium cell lateral wall is equipped with a protection section of thick bamboo, the bottom cover of lithium cell lateral wall is equipped with the underframe, the inside bottom fixedly connected with buffer board of underframe, the lateral wall sliding adjustment of lithium cell has the guard net, the top of guard net and the interior roof fixed connection of a protection section of thick bamboo, the bottom fixedly connected with snap ring of a protection section of thick bamboo, the ladder groove has been seted up on the top of underframe inside wall, the snap ring joint is in the inside in ladder groove.

Preferably, the upper surface of the bottom frame is fixedly connected with two symmetrically-arranged clamping blocks, the bottom end of the outer side wall of the protection barrel is provided with clamping grooves matched with the two clamping blocks, and the two clamping blocks are clamped in the clamping grooves.

Preferably, the connecting pieces are fixedly connected to one sides, far away from the two clamping blocks, of the two clamping blocks and are connected with the protection barrel through hexagonal screws in a threaded mode.

Preferably, the fixed waterproof circle that has cup jointed of lateral wall of snap ring, the lateral wall and the ladder groove of waterproof circle offset.

Preferably, the bottom of buffer board has seted up the cushion chamber, the ring channel has been seted up to the upper surface of buffer board, the bottom joint of protection net is in the inside of ring channel.

Preferably, the upper surface of a protection section of thick bamboo is provided with two waterproof sockets, the fixed intercommunication in top of a protection section of thick bamboo lateral wall has the breather pipe of two symmetry settings, two the breather pipe is kept away from the equal downward setting of opening of a protection section of thick bamboo one end, the equal fixedly connected with dust screen of one end of a protection section of thick bamboo is kept away from to the breather pipe inside wall.

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

1. the utility model discloses the gas permeability is good, and the lithium cell sees through the mesh of protecting net and the space that leaves between protecting net and the protection section of thick bamboo, then communicates with each other with the outside of a protection section of thick bamboo directly through the breather pipe that sets up, and when the gas of production reached explosion-proof point critical value, in the twinkling of an eye with outside straight-through, a large amount of gas is arranged outward, can release the inside powerful pressure of a protection section of thick bamboo fast, avoids exploding or reduces the explosion harm.

2. The utility model discloses simple structure, impact resistance is strong, through setting up protection network and a protection section of thick bamboo, can provide double-deck protection for the lithium cell, avoid the lithium cell directly to receive external shock, buffer board and cushion chamber can slow down the lithium cell bottom and receive the impact, avoid the lithium cell to produce and damage, when needs are examined or are changed the lithium cell, only need remove the hexagonal screw on two connection pieces, then upwards take out a protection section of thick bamboo, make snap ring and waterproof circle break away from the ladder groove, fixture block and draw-in groove separation, with protection network and a protection section of thick bamboo and underframe separation back, can take out the lithium cell, it is simple to dismantle operation process, be convenient for the inspection or change lithium ion battery.

Drawings

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

FIG. 2 is a schematic structural view of a protective cylinder of the present invention;

fig. 3 is a schematic structural view of the middle bottom frame of the present invention;

fig. 4 is a schematic perspective view of a protective net according to the present invention;

fig. 5 is an enlarged schematic view of a portion a of fig. 1.

In the figure: 1. a lithium battery; 2. a bottom frame; 3. a protective cylinder; 4. a snap ring; 41. a stepped groove; 42. a waterproof ring; 5. a clamping block; 51. a card slot; 52. connecting sheets; 53. a hexagonal screw; 6. a buffer plate; 61. an annular groove; 62. a buffer chamber; 7. a protection net; 8. a waterproof jack; 9. a breather pipe; 91. a dust screen.

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 creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a cylindrical explosion-proof lithium ion battery, including lithium cell 1, the top cover of 1 lateral wall of lithium cell is equipped with a protection section of thick bamboo 3, the bottom cover of 1 lateral wall of lithium cell is equipped with

underframe

2, 2 inside bottom fixedly connected with buffer board 6 of underframe, buffer board 6 is used for mitigateing when underframe 2 receives external shock, slow down the impact that 1 bottom of lithium cell received, lithium cell 1's lateral wall sliding regulation has protecting net 7, protecting net 7's mesh is ventilative, protecting net 7's top and protecting cylinder 3's interior roof fixed connection, protecting cylinder 3's bottom fixedly connected with snap ring 4, stepped groove 41 has been seted up on the top of 2 inside walls of underframe, 4 joints are in stepped groove 41's inside.

The upper surface of the bottom frame 2 is fixedly connected with two symmetrically arranged clamping blocks 5, the outer side wall of each clamping block 5 is fixedly connected with a rubber pad, the bottom end of the outer side wall of the protective frame 3 is provided with a clamping groove 51 matched with the two clamping blocks 5, the two clamping blocks 5 are clamped in the clamping grooves 51, when the two clamping blocks 5 are clamped in the clamping grooves 51, the rubber pad is positioned between the clamping blocks and the clamping grooves 51, the waterproof property of the protective frame 3 is improved, one side, far away from the two clamping blocks 5, of each clamping block 5 is fixedly connected with a connecting sheet 52, the two connecting sheets 52 are in threaded connection with the protective frame 3 through hexagonal screws 53, the installation and the disassembly are convenient, the outer side wall of the clamping ring 4 is fixedly sleeved with a waterproof ring 42, the outer side wall of the waterproof ring 42 is abutted against a stepped groove 41 and used for improving the sealing property and the waterproof property of the joint of the protective, the bottom joint of protection network 7 is in the inside of ring channel 61, limit lithium cell 1 in the inside of protection network 7, can not rock at will, the upper surface of a protection section of thick bamboo 3 is provided with two waterproof socket 8, the fixed intercommunication in top of a protection section of thick bamboo 3 lateral wall has the breather pipe 9 that two symmetries set up, the opening that 3 one end of a protection section of thick bamboo was kept away from to two breather pipes 9 all sets up downwards, be difficult for intaking when ventilating, the equal fixedly connected with dust screen 91 of one end of a protection section of thick bamboo 3 is kept away from to breather pipe 9 inside wall, prevent to get into the dust in.

Specifically, when the lithium battery 1 needs to be inspected or replaced, the lithium battery 1 is only required to be inspected or replaced by removing the hexagonal screws 53 on the two connecting pieces 52, then the protective cylinder 3 is pulled upwards to ensure that the snap ring 4 and the waterproof ring 42 are both upwards separated from the stepped groove 41, the clamping block 5 is separated from the clamping groove 51, the bottom of the protective net 7 is separated from the annular groove, the protective net 7 and the protective cylinder 3 can be separated from the bottom frame 2, then the lithium battery 1 is taken out and replaced, then the bottom of the lithium battery 1 is placed in the bottom frame 2, the protective net 7 is sleeved outside the lithium battery 1 from top to bottom, the snap ring 4 and the waterproof ring 42 are tightly inserted into the stepped groove 41, the waterproof ring 42 and the rubber pad can improve the air tightness and the water resistance inside the protective cylinder 1, the clamping block 5 is clamped inside the clamping groove 51, after two positive and negative electrode plugs of the lithium battery 1 are inserted into the, screw up two hexagonal screws 53, for accomplishing lithium ion battery's change promptly, it is simple to dismantle operation process, a protection section of thick bamboo 3 and protection network 7 provide double-deck protection for lithium cell 1, can avoid lithium cell 1 directly to receive external impact, buffer board 6 and cushion chamber 62 can slow down the impact that lithium cell 1 bottom received, avoid lithium cell 1 to produce the damage, mesh on the protection network 7 can ensure that lithium ion battery breaks down at circuit system, lithium ion battery internally takes place the intense chemical reaction and produces a large amount of gas, can communicate with each other with the outside through the space between protection network 7 and a protection section of thick bamboo 3 with breather pipe 9 is direct, when the gas of production reaches explosion-proof electricity critical value, in the twinkling of an eye with outside through, a large amount of gas is outer, can the inside powerful pressure of a quick release protection section of thick bamboo 3, avoid.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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

Claims

1. The utility model provides an explosion-proof lithium ion battery of cylindrical which characterized in that: including lithium cell (1), the top cover of lithium cell (1) lateral wall is equipped with a protection section of thick bamboo (3), the bottom cover of lithium cell (1) lateral wall is equipped with underframe (2), underframe (2) inside bottom fixedly connected with buffer board (6), the lateral wall sliding regulation of lithium cell (1) has protecting net (7), the top of protecting net (7) and the interior roof fixed connection of a protection section of thick bamboo (3), the bottom fixedly connected with snap ring (4) of a protection section of thick bamboo (3), ladder groove (41) have been seted up on the top of underframe (2) inside wall, snap ring (4) joint is in the inside of ladder groove (41).

2. The cylindrical explosion-proof lithium ion battery of claim 1, characterized in that: the upper surface of underframe (2) fixed connection has two fixture blocks (5) that the symmetry set up, draw-in groove (51) with two fixture block (5) looks adaptations are seted up to the bottom of a protection section of thick bamboo (3) lateral wall, two the equal joint of fixture block (5) is in the inside of draw-in groove (51).

3. The cylindrical explosion-proof lithium ion battery of claim 2, characterized in that: the two clamping blocks (5) are fixedly connected with connecting pieces (52) on one sides far away from each other, and the connecting pieces (52) are connected with the protective barrel (3) in a threaded mode through hexagonal screws (53).

4. The cylindrical explosion-proof lithium ion battery of claim 1, characterized in that: the outer side wall of the clamping ring (4) is fixedly sleeved with a waterproof ring (42), and the outer side wall of the waterproof ring (42) is abutted to the stepped groove (41).

5. The cylindrical explosion-proof lithium ion battery of claim 1, characterized in that: buffer chamber (62) have been seted up to the bottom of buffer board (6), ring channel (61) have been seted up to the upper surface of buffer board (6), the bottom joint of guard net (7) is in the inside of ring channel (61).

6. The cylindrical explosion-proof lithium ion battery of claim 1, characterized in that: the upper surface of a protection section of thick bamboo (3) is provided with two waterproof socket (8), the fixed intercommunication in top of a protection section of thick bamboo (3) lateral wall has breather pipe (9) that two symmetries set up, two the opening that a protection section of thick bamboo (3) one end was kept away from in breather pipe (9) all sets up downwards, the equal fixedly connected with dust screen (91) of one end of a protection section of thick bamboo (3) are kept away from to breather pipe (9) inside wall.