CN210272503U - Explosion-proof lithium battery - Google Patents
Explosion-proof lithium battery Download PDFInfo
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- CN210272503U CN210272503U CN201921186560.5U CN201921186560U CN210272503U CN 210272503 U CN210272503 U CN 210272503U CN 201921186560 U CN201921186560 U CN 201921186560U CN 210272503 U CN210272503 U CN 210272503U
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- guide cylinder
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses an explosion-proof lithium cell, include the casing and install the core in the casing, be connected with the guide cylinder that makes external and casing inner chamber intercommunication on the circumference inner wall of casing, and install in the guide cylinder and can slide when the pressure changes in the casing and guarantee the invariable piston mechanism of casing internal pressure. The piston mechanism is including installing the piston piece in the guide cylinder, the cross-section of guide cylinder is ring shape, and the circumference joint of piston piece has the sealing washer. The piston block is inserted in the guide cylinder, a sealing cavity is formed under the action of the sealing ring, the pressure in the shell is consistent with the external pressure, when the internal pressure of the shell is increased, the piston block can be pushed to move outwards, the volume in the shell is increased, the pressure is reduced, the internal pressure and the external pressure are kept consistent, the explosion is avoided, and the safety valve is safer and more constant and safer in pressure compared with a safety valve.
Description
Technical Field
The utility model relates to an explosion-proof field of lithium cell specifically is an explosion-proof lithium cell.
Background
For the lithium cell, because resistance problem can produce the heat during the charging, cause the casing inflation, can explode when serious, have on the market through warping the buffering, however, this kind of material intensity is not enough, causes the casing to damage easily, consequently, needs an explosion-proof lithium cell that hardness is high, simultaneously can cushion.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an explosion-proof lithium cell to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an explosion-proof lithium cell, includes the casing and installs the core in the casing, be connected with the guide cylinder that makes external and casing inner chamber intercommunication on the circumference inner wall of casing, and install in the guide cylinder and can slide when the pressure changes in the casing and guarantee the invariable piston mechanism of casing internal pressure.
Preferably, the piston mechanism is including installing the piston piece in the guide cylinder, the cross-section of guide cylinder is ring shape, and the circumference joint of piston piece has the sealing washer.
Preferably, the guide cylinder is symmetrically arranged into a left guide cylinder and a right guide cylinder, and a baffle ring is fixed at the inner end of the guide cylinder.
Preferably, the outer end of the guide cylinder is in threaded connection with a blocking cover, and the blocking cover is provided with an air outlet.
Preferably, the air outlets are strip-shaped.
Compared with the prior art, the beneficial effects of the utility model are that: the piston block is inserted in the guide cylinder, a sealing cavity is formed under the action of the sealing ring, the pressure in the shell is consistent with the external pressure, when the internal pressure of the shell is increased, the piston block can be pushed to move outwards, the volume in the shell is increased, the pressure is reduced, the internal pressure and the external pressure are kept consistent, the explosion is avoided, and the safety valve is safer and more constant and safer in pressure compared with a safety valve.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a left side view of the present invention;
fig. 3 is an enlarged view of the structure a of fig. 1.
In the figure: 1 shell, 11 core bodies, 2 guide cylinders, 21 piston blocks, 22 sealing rings, 23 baffle rings, 24 baffle covers and 25 air outlets.
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 3, the present invention provides an explosion-proof lithium battery, which comprises: the utility model provides an explosion-proof lithium cell, include casing 1 and install core 11 in casing 1, core 11 is prior art, connect the terminal, specifically do not describe in detail again, be connected with the guide cylinder 2 that makes external and 1 inner chamber of casing intercommunication on casing 1's the circumference inner wall, and install in the guide cylinder 2 and can slide when casing 1 internal pressure changes and guarantee the invariable piston mechanism of casing 1 internal pressure, piston mechanism is including installing piston piece 21 in guide cylinder 2, the cross-section of guide cylinder 2 is ring shape, avoid having the edges and corners, produce the gap, and the circumference joint of piston piece 21 has sealing washer 22, increase the leakproofness.
The guide cylinder 2 is symmetrically arranged to be left and right, the two buffering effects are better, the baffle ring 23 is fixed at the inner end of the guide cylinder 2, the piston block 21 is prevented from moving inwards, the outer end of the guide cylinder 2 is connected with the baffle cover 24 in a threaded mode, the guide cylinder is convenient to disassemble, the air outlet 25 is formed in the baffle cover 24 and keeps the pressure in the guide cylinder 2 balanced, the air outlet 25 is in a strip shape and is convenient to insert a plate-shaped object to rotate, and the baffle.
The working principle is as follows: the piston block 21 is inserted in the guide cylinder 2, a sealed cavity is formed under the action of the sealing ring 22, the pressure in the shell 1 is consistent with the external pressure, when the internal pressure of the shell 1 is increased, the piston block 21 is pushed to move outwards, the volume in the shell 1 is increased, the pressure is reduced, the internal and external consistency is kept, and the explosion is avoided.
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 (5)
1. An explosion-proof lithium cell, includes casing (1) and installs core (11) in casing (1), its characterized in that: the inner wall of the circumference of the shell (1) is connected with a guide cylinder (2) which enables the outside and the inner cavity of the shell (1) to be communicated, and a piston mechanism which can slide to ensure that the pressure in the shell (1) is constant when the pressure in the shell (1) changes is arranged in the guide cylinder (2).
2. An explosion-proof lithium battery as claimed in claim 1, characterized in that: the piston mechanism is including installing piston block (21) in guide cylinder (2), the cross-section of guide cylinder (2) is the ring shape, and the circumference joint of piston block (21) has sealing washer (22).
3. An explosion-proof lithium battery as claimed in claim 2, characterized in that: the guide cylinder (2) is symmetrically arranged into a left guide cylinder and a right guide cylinder, and a baffle ring (23) is fixed at the inner end of the guide cylinder (2).
4. An explosion-proof lithium battery as claimed in claim 3, characterized in that: the outer end of the guide cylinder (2) is in threaded connection with a blocking cover (24), and the blocking cover (24) is provided with an air outlet (25).
5. An explosion-proof lithium battery as claimed in claim 4, characterized in that: the air outlet (25) is strip-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921186560.5U CN210272503U (en) | 2019-07-26 | 2019-07-26 | Explosion-proof lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921186560.5U CN210272503U (en) | 2019-07-26 | 2019-07-26 | Explosion-proof lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210272503U true CN210272503U (en) | 2020-04-07 |
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ID=70014299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921186560.5U Active CN210272503U (en) | 2019-07-26 | 2019-07-26 | Explosion-proof lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210272503U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111420313A (en) * | 2020-05-15 | 2020-07-17 | 上海孚邦实业有限公司 | Closed circuit type respirator |
| CN113745603A (en) * | 2021-08-10 | 2021-12-03 | 嘉庚创新实验室 | Pressure regulation explosion-proof device, battery thereof and explosion-proof method of battery |
-
2019
- 2019-07-26 CN CN201921186560.5U patent/CN210272503U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111420313A (en) * | 2020-05-15 | 2020-07-17 | 上海孚邦实业有限公司 | Closed circuit type respirator |
| CN113745603A (en) * | 2021-08-10 | 2021-12-03 | 嘉庚创新实验室 | Pressure regulation explosion-proof device, battery thereof and explosion-proof method of battery |
| CN113745603B (en) * | 2021-08-10 | 2023-06-09 | 嘉庚创新实验室 | Pressure-adjusting explosion-proof device and battery thereof and explosion-proof method of battery |
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