CN218039539U

CN218039539U - 18650 lithium cell safety arrangement

Info

Publication number: CN218039539U
Application number: CN202221108853.3U
Authority: CN
Inventors: 张振磊; 刘鹏; 冯焕云; 范建柏
Original assignee: Heze Tianyu New Energy Technology Co ltd
Current assignee: Heze Tianyu New Energy Technology Co ltd
Priority date: 2022-05-10
Filing date: 2022-05-10
Publication date: 2022-12-13
Anticipated expiration: 2032-05-10

Abstract

The utility model belongs to the technical field of 18650 lithium batteries, concretely relates to 18650 lithium battery safety arrangement, including a plurality of protective sheaths that become the distribution of rectangle array, the protective sheath is hollow tubular structure, the inside of protective sheath is installed the battery body; adjacent two be connected with coupling assembling between the protective sheath, coupling assembling includes the first connecting seat and the second connecting seat that the structure is the same, the utility model discloses set up mutually supporting protective sheath, coupling assembling and spring, when the protective sheath bumps, first protrusion piece and the mutual extrusion of second protrusion piece on first connecting seat and the second connecting seat to shorten the interval between first connecting seat and the second connecting seat, at this in-process compression spring, thereby the impact force that produces when the elasticity buffering through the spring strikes, the protective sheath plays the effect of protection in battery body's outside simultaneously, has reduced the risk that battery body explodes.

Description

18650 lithium cell safety arrangement

Technical Field

The utility model belongs to the technical field of 18650 lithium batteries, concretely relates to 18650 lithium cell safety arrangement.

Background

18650 is a lithium ion battery's nose ancestor — a standard lithium ion battery model number by the SONY corporation of japan, which was made in the year to save costs, where 18 represents a diameter of 18mm,65 represents a length of 65mm, and 0 represents a cylindrical battery.

At present, 18650 lithium cell is installed and is fixed through insulating, fire-retardant support material and become the battery module for the vast majority, and battery module rethread different series-parallel connection mode is constituteed the battery package, if suffer external extreme condition, for example violent collision, extrusion deformation, metal impale and circuit short circuit etc. 18650 lithium cell is very easy to explode, and current installing support generally is fixed dimension, can not make up according to the reality at will, greatly reduced the practicality of equipment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a 18650 lithium cell safety arrangement to solve the current battery package that provides in the above-mentioned background art and explode very easily when suffering external extreme condition, current installing support generally is fixed dimension, can not carry out the problem of making up at will according to the reality.

In order to achieve the above object, the utility model provides a following technical scheme: a lithium battery safety protection device comprises a plurality of protective sleeves distributed in a rectangular array, wherein each protective sleeve is of a hollow cylindrical structure, and a battery body is arranged in each protective sleeve; a connecting assembly is connected between every two adjacent protective sleeves and comprises a first connecting seat and a second connecting seat which are identical in structure, and a first protruding block and a second protruding block are symmetrically protruded from one opposite side of each of the first connecting seat and the second connecting seat; two first protruding piece and two second protruding pieces are misplaced each other and are pegged graft, be connected with the spring between first connecting seat and the second connecting seat.

Preferably, threaded holes are formed in the peripheral outer wall of the protective sleeve, and one ends of the first connecting seat and the second connecting seat can be screwed in the threaded holes.

Preferably, the first protruding block is welded with the protruding blocks on two symmetrical sides close to one end of the second protruding block, the sliding grooves are formed in two symmetrical sides of the second protruding block, and the two protruding blocks are arranged in the sliding grooves on two corresponding sides respectively and can move in the sliding grooves in a reciprocating mode.

Preferably, the inside of the relative one end of first connecting seat and second connecting seat has all seted up the mounting groove, the both ends of spring can support respectively in the mounting groove of both sides.

Preferably, a mounting hole is formed in one end of the protective sleeve, a protrusion is fixed on the inner side, close to the outside, of the mounting hole, when one end of the battery body is inserted into the mounting hole, the battery body is limited by the protrusion and cannot be separated from the protective sleeve, and a rubber pad is installed between the battery body and the mounting hole.

Preferably, an opening is formed in one end, far away from the mounting hole, of the protective sleeve, the size of the opening is smaller than that of the battery body, and the rubber pad is of a circular ring structure.

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

(1) The utility model discloses set up mutually supported protective sheath, coupling assembling and spring, when the protective sheath bumps, first protrusion piece and the mutual extrusion of second protrusion piece on first connecting seat and the second connecting seat, thereby shorten the interval between first connecting seat and the second connecting seat, at this in-process compression spring, thereby the impact force that produces when the elasticity buffering striking through the spring, the effect of protection is played in the outside of battery body to the while protective sheath, the risk that the battery body explodes has been reduced.

(2) The utility model discloses set up and be located the outside screw hole of seting up all around of protective sheath, let a plurality of protective sheaths carry out the size combination according to the demand of oneself under the effect of first connecting seat and second connecting seat, solved current installing support and generally be fixed dimension, can not carry out the problem of making up at will according to the reality.

Drawings

Fig. 1 is a top view of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a cross-sectional view of the protective cover of the present invention;

fig. 4 is a cross-sectional view of the first connecting seat and the first protruding block of the present invention;

fig. 5 is a cross-sectional view of a second connecting seat and a second protrusion block of the present invention;

fig. 6 is a schematic view of the engagement between the bump and the sliding groove of the present invention;

fig. 7 is a schematic view of the first protruding block and the second protruding block of the present invention;

in the figure: 1. a protective sleeve; 2. a protrusion; 3. mounting holes; 4. a battery body; 5. a first protruding block; 6. a spring; 7. a first connecting seat; 8. a bump; 9. a second protruding block; 10. a chute; 11. a second connecting seat; 12. a threaded hole; 13. mounting grooves; 14. a rubber pad; 15. and (4) opening.

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. 1-2 and fig. 4-5, the present invention provides a technical solution: a18650 lithium battery safety arrangement, including a plurality of protective sheaths 1 that form the rectangular array and distribute, protective sheath 1 is the hollow tubular structure, the inside of protective sheath 1 is fitted with the battery body 4;

a connecting assembly is connected between two adjacent protective sleeves 1, the connecting assembly comprises a first connecting seat 7 and a second connecting seat 11 which are identical in structure, and a first protruding block 5 and a second protruding block 9 are symmetrically protruded from one opposite sides of the first connecting seat 7 and the second connecting seat 11 respectively;

the two first protruding blocks 5 and the two second protruding blocks 9 are inserted in a staggered mode, and a spring 6 is connected between the first connecting seat 7 and the second connecting seat 11.

Through the technical scheme:

specifically, the device passes through protective sheath 1, coupling assembling and spring 6 constitute, a plurality of protective sheaths 1 are the array state through coupling assembling and distribute, in this process, first protruding piece 5 on the first connecting seat 7 is pegged graft with the second protruding piece 9 on the second connecting seat 7 dislocation each other, thereby adjust the interval between two adjacent protective sheaths 1, when two protective sheaths 1 extrude each other, spring 6 pressurized shrink in the first connecting seat 7, thereby cushion the extrusion force that produces when two protective sheaths 1 extrude, protective sheath 1 plays the effect of protection in addition in the outside of battery body 4.

Further, to above-mentioned first connecting seat 7 and the second connecting seat 11 that set up, mounting groove 13 has all been seted up to the inside of the relative one end of first connecting seat 7 and second connecting seat 11, and the both ends of spring 6 can support respectively in the mounting groove 13 of both sides, installs spring 6 in the inside of first connecting seat 7 and second connecting seat 11 through mounting groove 13, avoids spring 6 to receive external force to damage.

Referring to fig. 3, the protective sleeve 1 has threaded holes 12 formed in the peripheral outer wall thereof, and one ends of the first connecting seat 7 and the second connecting seat 11 are screwed into the threaded holes 12.

Through the technical scheme:

specifically, the device comprises first connecting seat 7, second connecting seat 11, screw hole 12 and protective sheath 1, and through the effect of first connecting seat 7 and second connecting seat 11, lets a plurality of protective sheaths 1 can carry out the size combination according to the demand of oneself.

Referring to fig. 2 and fig. 4-7, two symmetrical sides of one end of the first protruding block 5 close to the second protruding block 9 are welded with the protruding blocks 8, two symmetrical sides of the second protruding block 9 are provided with the sliding slots 10, and the two protruding blocks 8 are respectively disposed in the sliding slots 10 at the two corresponding sides and can reciprocate in the sliding slots 10.

Through the technical scheme:

specifically, the device comprises a first protruding block 5, a second protruding block 9, a protruding block 8 and a sliding groove 10, when the first protruding block 5 and the second protruding block 9 are mutually inserted, the protruding block 8 on the first protruding block 5 is clamped into the sliding groove 10 on the second protruding block 9, the first protruding block 5 is prevented from being separated from the second protruding block 9 under the condition that no external force is used for pulling, meanwhile, the first protruding block 5 is mutually folded with the second protruding block 9 through the protruding block 8 and the sliding groove 10, and meanwhile, the external impact force is buffered under the action of the spring 6.

Referring to fig. 3, a mounting hole 3 is formed at one end of the protective cover 1, a protrusion 2 is fixed on the inner side of the mounting hole 3 near the outside, when one end of the battery body 4 is inserted into the mounting hole 3, the battery body 4 is limited by the protrusion 2 and cannot be separated from the protective cover 1, and a rubber pad 14 is installed between the battery body 4 and the mounting hole 3.

Through the technical scheme:

specifically, the device passes through lug 8, protective sheath 1 and rubber pad 14 and constitutes, and battery body 4 passes through mounting hole 3 to be installed in the inside of protective sheath 1, and at this in-process, lug 8 avoids battery body 4 to pass through 3 roll-off protective sheath 1 of mounting hole in the outside of battery body 4 one end, avoids battery body 4 to rock in protective sheath 1 through rubber pad 14 simultaneously.

Further, aiming at the rubber pad 14, an opening 15 is formed in one end, away from the mounting hole 3, of the protective sleeve 1, the size of the opening 15 is smaller than that of the battery body 4, the rubber pad 14 is of a circular ring structure, and external equipment is conveniently connected with one end of the battery body 4 through the opening 15.

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 a 18650 lithium cell safety arrangement which characterized in that: the battery protection sleeve comprises a plurality of protection sleeves (1) distributed in a rectangular array, wherein the protection sleeves (1) are of hollow cylindrical structures, and a battery body (4) is arranged in each protection sleeve (1);

a connecting assembly is connected between every two adjacent protective sleeves (1), the connecting assembly comprises a first connecting seat (7) and a second connecting seat (11) which are identical in structure, and a first protruding block (5) and a second protruding block (9) are symmetrically protruded from one opposite side of each of the first connecting seat (7) and the second connecting seat (11);

two first protruding piece (5) and two second protruding pieces (9) are inserted each other in a staggered mode, and spring (6) are connected between first connecting seat (7) and second connecting seat (11).

2. The 18650 lithium battery safety protection device of claim 1, characterized in that: threaded holes (12) are formed in the peripheral outer walls of the protective sleeve (1), and one ends of the first connecting seat (7) and the second connecting seat (11) can be screwed in the threaded holes (12).

3. The 18650 lithium battery safety protection device of claim 1, wherein: the two sides of the first protruding block (5) close to the symmetry of one end of the second protruding block (9) are welded with the protruding blocks (8), the two sides of the second protruding block (9) are provided with the sliding grooves (10), and the protruding blocks (8) are arranged in the sliding grooves (10) on the two corresponding sides respectively and can move in the sliding grooves (10) in a reciprocating mode.

4. The 18650 lithium battery safety protection device of claim 1, wherein: mounting grooves (13) are formed in the inner parts of the opposite ends of the first connecting seat (7) and the second connecting seat (11), and the two ends of the spring (6) can be abutted to the mounting grooves (13) on the two sides respectively.

5. The 18650 lithium battery safety protection device of claim 1, characterized in that: mounting hole (3) have been seted up to the one end of protective sheath (1), mounting hole (3) are close to outside inboard and are fixed with arch (2), when the one end of battery body (4) was inserted in mounting hole (3), through arch (2) restriction battery body (4) can't break away from protective sheath (1), install rubber pad (14) between battery body (4) and mounting hole (3).

6. The 18650 lithium battery safety protection device of claim 5, wherein: an opening (15) is formed in one end, far away from the mounting hole (3), of the protective sleeve (1), the size of the opening (15) is smaller than that of the battery body (4), and the rubber pad (14) is of a circular ring structure.