CN217387434U

CN217387434U - Explosion-proof hollow lithium battery pack with force release mechanism

Info

Publication number: CN217387434U
Application number: CN202220735868.6U
Authority: CN
Inventors: 麦祖升
Original assignee: Shenzhen Huake New Energy Technology Co ltd
Current assignee: Shenzhen Huake New Energy Technology Co ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-09-06
Anticipated expiration: 2032-03-31

Abstract

The utility model relates to a lithium cell technical field specifically is an explosion-proof cavity lithium battery group of mechanism is let out in area. The lithium battery pack assembly comprises a battery pack packaging shell, a lithium battery body, a limiting clamping plate, spacing buffer plugs, protruding abutting blocks and a pressure relief pipe, wherein the lithium battery body is uniformly arranged inside the battery pack packaging shell, the limiting clamping plate is arranged around the lithium battery body, the spacing buffer plugs are located between the two lithium battery bodies, the protruding abutting blocks are symmetrically arranged at two ends of the spacing buffer plugs, and the pressure relief pipe penetrates through the middle ends of the spacing buffer plugs. A spacing buffer plug can be arranged between the two lithium batteries for buffering, so that sudden collision between the lithium batteries can be avoided, and the phenomenon of explosion caused by collision of the lithium batteries can be prevented; open the bleeder vent for because the atmospheric pressure that the lithium cell displacement produced, can discharge through the pressure release pipe, and then play the effect of pressure release.

Description

Explosion-proof hollow lithium battery pack with force release mechanism

Technical Field

The utility model relates to a lithium cell technical field specifically is an explosion-proof cavity lithium battery group of mechanism is let out in area.

Background

Lithium batteries (Lithium batteries) refer to batteries in which the electrochemical system contains Lithium (including metallic Lithium, Lithium alloys and Lithium ions, Lithium polymers). Lithium batteries can be broadly classified into two types: lithium metal batteries and lithium ion batteries. Lithium metal batteries are generally non-rechargeable and contain lithium in a metallic state. Lithium ion batteries do not contain lithium in the metallic state and are rechargeable. The current lithium battery needs to encapsulate a plurality of lithium batteries to form a lithium battery pack because of use requirements.

And the distance between the inside lithium cell of present lithium cell group is too close to lithium cell in use, the inside temperature of its lithium cell group is higher, and in case the lithium cell group bumps this moment, the inside lithium cell of lithium cell group can be because the collision takes place to explode, and then makes the use of lithium cell group have very big danger risk.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take explosion-proof cavity lithium battery group of power mechanism of letting out through arranging this use, can place interval buffering stopper between adjacent lithium cell to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a take explosion-proof cavity lithium battery pack of power mechanism of letting out, lithium battery pack subassembly is including group battery encapsulation shell, lithium cell body, spacing cardboard, interval buffering stopper, the outstanding piece of conflict and pressure release pipe, wherein lithium cell body evenly arranges in group battery encapsulation shell's inside, lithium cell body is arranged around to spacing cardboard, wherein interval buffering stopper is located two between the lithium cell body, the outstanding piece symmetrical arrangement of conflict is at the both ends of interval buffering stopper, and wherein the pressure release pipe runs through interval buffering stopper middle-end and arranges.

Preferably, the shape that the interval buffering stopper appears is olive shape, wherein be the structure of integrated into one piece between interval buffering stopper and the conflict protruding piece.

Preferably, the upper end and the lower end of the pressure relief pipe are respectively arranged by penetrating through the battery pack packaging shell, and the middle end of the pressure relief pipe is uniformly provided with air holes in a penetrating manner.

Preferably, the two sides of the middle end of the pressure release pipe are symmetrically provided with guide limiting grooves, and the outer end of the pressure release pipe is symmetrically sleeved with a sliding outer cylinder.

Preferably, an integrally formed convex rod is arranged on one side of the inner end of the sliding outer cylinder, the convex rod is located inside the guide limiting groove, and elastic auxiliary rods are symmetrically placed at two ends of the pressure relief pipe.

Preferably, the middle end of the interference protruding block is provided with a bearing hole in a penetrating way.

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

1. through the arrangement of the utility model, a spacing buffer plug can be arranged between the two lithium batteries for buffering, so that sudden collision between the lithium batteries can be avoided, and the lithium batteries can be prevented from explosion caused by collision;

2. through right this practical arrangement, can be so that the lithium cell after taking place the displacement, the pole takes place deformation is assisted with elasticity to interval buffering stopper, opens the bleeder vent simultaneously for because the atmospheric pressure that the lithium cell displacement produced can be discharged through the pressure release pipe, and then play the effect of pressure release.

Drawings

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

FIG. 2 is a schematic diagram of a battery pack enclosure according to the present invention in a half-cut-away right view;

FIG. 3 is a perspective view of the pressure relief tube of the present invention;

fig. 4 is an enlarged schematic view of a point a in fig. 2 according to the present invention.

In the figure: 1. a battery pack enclosure; 11. a lithium battery body; 12. a limiting clamping plate; 13. a spacer buffer plug; 14. abutting against the protruding block; 1401. a bearing hole; 15. a pressure relief pipe; 1501. air holes are formed; 1502. a guide limit groove; 1503. sliding the outer cylinder; 1504. a nose bar; 1505. an elastic auxiliary rod.

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 to 4, the present invention provides a technical solution: including the lithium cell group spare that has the explosion-proof function of pressure release, the lithium cell group spare is including group battery encapsulation shell 1, lithium cell body 11, spacing cardboard 12, interval buffering stopper 13, conflict outstanding piece 14 and pressure release pipe 15, wherein lithium cell body 11 evenly arranges in the inside of group battery encapsulation shell 1, spacing cardboard 12 is around lithium cell body 11 and arranges, wherein interval buffering stopper 13 is located between two lithium cell body 11, conflict outstanding piece 14 symmetrical arrangement at the both ends of interval buffering stopper 13, wherein pressure release pipe 15 runs through interval buffering stopper 13 middle-end and arranges.

Spacing cardboard 12 and battery pack packaging casing 1 between the position integrated into one piece's structure, spacing cardboard 12 can restrict lithium cell body 11's position.

The shape of the spacing buffer plug 13 is olive-shaped, wherein the spacing buffer plug 13 and the interference protrusion block 14 are integrally formed.

The material that interval buffering stopper 13 adopted is rubber, and the protruding piece 14 of contradicting is evenly seted up the rectangular channel near the one end of lithium cell body 11 for accept hole 1401 with the help of the rectangular channel, with the inside intercommunication of group battery encapsulation shell 1, the pressure release of being convenient for.

The upper end and the lower end of the pressure release pipe 15 are respectively arranged by penetrating through the battery pack packaging shell 1, wherein the middle end of the pressure release pipe 15 is uniformly provided with vent holes 1501 in a penetrating manner.

By means of the air holes 1501, the interval buffer pads 13 are communicated with the outside of the battery pack packaging shell 1, and the contact part between the pressure relief pipe 15 and the interval buffer pads 13 can be connected in a glue sealing mode.

The pressure relief tube 15 and the battery pack enclosure 1 may be snap-fit connected.

The two sides of the middle end of the pressure release pipe 15 are symmetrically provided with guide limiting grooves 1502, and the outer end of the pressure release pipe 15 is symmetrically sleeved with a sliding outer cylinder 1503.

The sliding outer cylinder 1503 can cover the ventilation holes 1501, and the sliding outer cylinder 1503 can slide up and down under the action of the convex rods 1504 through the guide limiting grooves 1502.

An integrally formed convex rod 1504 is disposed at one side of the inner end of the sliding outer cylinder 1503, wherein the convex rod 1504 is located inside the guide limiting groove 1502, and elastic auxiliary rods 1505 are symmetrically disposed at both ends of the pressure release pipe 15.

The middle end of the interference protrusion block 14 is provided with a receiving hole 1401.

The both ends of pole 1505 are assisted to elasticity and two slip urceolus 1503 are articulated to be connected respectively for lithium cell 1 when taking place the displacement, lithium cell 1 can extrude interval buffering stopper 13, pole 1505 takes place deformation is assisted to elasticity this moment, pole 1505 is assisted to elasticity and the slip urceolus 1503 is promoted to both sides, bleeder vent 1501 and external intercommunication this moment, interval buffering stopper 13 can be through pressure release pipe 15 outside pressure release this moment, not only can prevent to collide between two lithium cell 11 like this, the pressure that produces when also can making lithium cell 11 the displacement carries out the pressure release.

Meanwhile, the elastic auxiliary rod 1505 can reset the lithium battery body 11 at the later stage.

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 cavity lithium battery group of area power release mechanism, includes the lithium battery group spare that has the explosion-proof function of pressure release, its characterized in that: lithium battery pack subassembly is including group battery encapsulation shell (1), lithium cell body (11), spacing cardboard (12), interval buffering stopper (13), conflict outstanding piece (14) and pressure release pipe (15), wherein lithium cell body (11) evenly arrange in the inside of group battery encapsulation shell (1), spacing cardboard (12) are arranged around lithium cell body (11), and wherein interval buffering stopper (13) are located two between lithium cell body (11), conflict outstanding piece (14) symmetrical arrangement is at the both ends of interval buffering stopper (13), and wherein pressure release pipe (15) run through interval buffering stopper (13) middle-end and arrange.

2. The explosion-proof hollow lithium battery pack with the force release mechanism as claimed in claim 1, wherein: the spacing buffer plug (13) is in an olive shape, and an integrally formed structure is arranged between the spacing buffer plug (13) and the interference protruding block (14).

3. The explosion-proof hollow lithium battery pack with the force release mechanism as claimed in claim 1, wherein: the upper end and the lower end of the pressure relief pipe (15) penetrate through the battery pack packaging shell (1) respectively and are arranged, and air holes (1501) are formed in the middle end of the pressure relief pipe (15) in a penetrating mode.

4. The explosion-proof hollow lithium battery pack with the force release mechanism of claim 3, characterized in that: the two sides of the middle end of the pressure relief pipe (15) are symmetrically provided with guide limiting grooves (1502), and the outer end of the pressure relief pipe (15) is symmetrically sleeved with a sliding outer cylinder (1503).

5. The explosion-proof hollow lithium battery pack with the force release mechanism as claimed in claim 4, wherein: an integrally formed convex rod (1504) is arranged on one side of the inner end of the sliding outer cylinder (1503), wherein the convex rod (1504) is positioned inside the guide limiting groove (1502), and elastic auxiliary rods (1505) are symmetrically arranged at two ends of the pressure relief pipe (15).

6. The explosion-proof hollow lithium battery pack with the force release mechanism as claimed in claim 2, wherein: the middle end of the interference protruding block (14) is provided with a bearing hole (1401) in a penetrating way.