CN207765485U - The explosion-proof bound edge combination cover cap of cylindrical battery - Google Patents
The explosion-proof bound edge combination cover cap of cylindrical battery Download PDFInfo
- Publication number
- CN207765485U CN207765485U CN201820038535.1U CN201820038535U CN207765485U CN 207765485 U CN207765485 U CN 207765485U CN 201820038535 U CN201820038535 U CN 201820038535U CN 207765485 U CN207765485 U CN 207765485U
- Authority
- CN
- China
- Prior art keywords
- burst disk
- orifice plate
- explosion
- boss
- bound edge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
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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
Abstract
The utility model is related to explosion-proof combined block fields, especially a kind of explosion-proof bound edge combination cover cap of cylindrical battery, including head cover, burst disk, sealing ring, orifice plate and insulated ring, the burst disk is installed below the head cover, the orifice plate is installed below the burst disk, the burst disk is the bowl-shape of upward opening, the bowl-shape edge bending of burst disk forms bound edge and lives the edge wrap of the head cover, the cap edge is connect by multiple solder joints with the burst disk, the insulated ring is arranged in the burst disk and the intermediate of the orifice plate, the orifice plate is fixed the insulated ring by being connected to the burst disk, the orifice plate is connect with the burst disk centrally through solder joint, the ring set is in the head cover, the periphery of burst disk and orifice plate, and it is fixed by glue.By the improvement of the capping structure to traditional lithium battery, the stability under different application environment and superior explosion-proof anti-seismic performance are reached.
Description
Technical field
The utility model is related to explosion-proof combined block field, especially a kind of explosion-proof bound edge combination cover cap of cylindrical battery.
Background technology
Since lithium battery is typically to be applied in combination by multi-series and parallel, cause the gross energy of battery larger, in charging process
There are the hidden danger that single branch over-charging of battery or entire battery pack overcharge, and when lithium battery overcharges, cell voltage increase with polarization and
It is rapid to rise, the irreversible change of positive active material structure and the decomposition of electrolyte can be caused, generate bulk gas, released big
The heat of amount makes battery temperature and internal pressure sharply increase, and there are the hidden danger such as explosion, burning.
The block of lithium battery and ickel-cadmium cell/Ni-MH battery are different, usually by head cover, screening glass, burst disk, bottom
Board group at sub-assembly, but in the environment of strenuous exercise, crimp, solder joint burst disk is easy to fall off with bottom plate, makes
At power-off.
Utility model content
To solve the above problems, the utility model is intended to provide a kind of explosion-proof bound edge combination cover cap of cylindrical battery, by changing
Become the connection type of burst disk and head cover to improve stability and the explosion-proof anti-seismic performance under different application environment.
Realizing above-mentioned purpose, the technical solution adopted by the present invention is：A kind of explosion-proof bound edge combination cover cap of cylindrical battery, bound edge
Block, including head cover, burst disk, sealing ring, orifice plate and insulated ring, the burst disk is installed in the head cover lower section, described anti-
The orifice plate is installed in quick-fried lower section, and the burst disk is the bowl-shape of upward opening, and the bowl-shape edge bending of burst disk forms packet
While the edge wrap of the head cover is lived, the cap edge is connect by multiple solder joints with the burst disk, the burst disk
The insulated ring is arranged in intermediate with the orifice plate, and the orifice plate is fixed the insulated ring by being connected to the burst disk,
The orifice plate is connect with the burst disk centrally through solder joint, and the ring set is in the head cover, burst disk and orifice plate
Periphery, and fixed by glue.
Further, the edge of down-set first boss among the burst disk, the first boss has cutting, institute
It states and sets up second boss among orifice plate, the second boss is connect with the first boss by solder joint.
Further, head cover upper surface nickel plating, sets up third boss, and the side of the third boss opens up
There are three holes or six holes.
Further, it is Z-shaped annulus that the insulated ring, which is section, and ring is located at the periphery of the first boss.
Further, the insulated ring uses polypropylene or high temperature resistant type polypropylene material.
Further, the burst disk uses aluminium sheet with the orifice plate.
Compared with prior art, the beneficial effects of the utility model are：Pass through changing for the capping structure to traditional lithium battery
Into, burst disk is wrapped up into head cover, and fix by solder joint, though burst disk is split, or the solder joint disconnection between orifice plate, it is whole
Body structure will not movement and deformation, reached the stability under different application environment and superior explosion-proof anti-seismic performance.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is a kind of structure chart of the explosion-proof bound edge combination cover cap of cylindrical battery of the utility model；
Fig. 2 is a kind of vertical view of the explosion-proof bound edge combination cover cap of cylindrical battery of the utility model；
Fig. 3 is a kind of upward view of the explosion-proof bound edge combination cover cap of cylindrical battery of the utility model；
Fig. 4 is a kind of burst disk structure chart of the explosion-proof bound edge combination cover cap of cylindrical battery of the utility model.
Specific implementation mode
The technical issues of in order to keep the utility model solved, technical solution and advantageous effect are more clearly understood, below
In conjunction with the embodiments, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only
To explain the utility model, it is not used to limit the utility model.
It should be understood that the orientation or positional relationship of the instructions such as term "left", "right" in the description of the present invention,
To be based on the orientation or positional relationship shown in the drawings, it is merely for convenience of description the utility model, rather than requires this practicality new
Type must be with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.
As shown in Figure 1, for a kind of structure chart of the explosion-proof bound edge combination cover cap of cylindrical battery of the utility model, including head cover 1,
Burst disk 2 is installed in burst disk 2, sealing ring 3, orifice plate 4 and insulated ring 5,1 lower section of head cover, and 2 lower section of burst disk is installed orifice plate 4, prevented
Quick-fried 2 is the bowl-shape of upward opening, and 2 bowl-shape edge bending of burst disk forms bound edge and lives 1 edge wrap of head cover, 1 edge of head cover
It is fixedly connected with burst disk 2 by 8 solder joints of long 3-4mm, insulated ring 5, sealing ring 3 is arranged with the intermediate of orifice plate 4 in burst disk 2
Be sleeved on head cover 1, burst disk 2 and orifice plate 4 periphery, and fixed by glue.Insulated ring 5 is that section is Z-shaped annulus, and
Ring is located at the periphery of the first boss 201 of burst disk 2, and orifice plate 4 is consolidated insulated ring 5 by being connected to the periphery of first boss 201
It is scheduled between burst disk 2 and orifice plate 4.
As shown in Fig. 2, 1 upper surface nickel plating of head cover, sets up third boss 101, the side of third boss 101 opens up
There are six holes, in further embodiments, the side of third boss 101 can also be three holes.
As shown in Figure 3 and Figure 4, down-set first boss 201 among burst disk 2, the edge of first boss 201, which has, to be carved
Slot 202 sets up second boss 401 among orifice plate 4, and second boss 401 is connect with first boss 201 by solder joint.
In the present embodiment, it is preferable that insulated ring 5 uses polypropylene or high temperature resistant type polypropylene material.Burst disk 2 and orifice plate
4 use aluminium sheet.
When battery is abnormal, high-rate battery discharge causes the irreversible change and electricity of positive active material structure
The decomposition of liquid is solved, bulk gas is generated, a large amount of heat is released, battery temperature and internal pressure is made to sharply increase, as gas increases, gas
Positive pressure is big, and burst disk stress expands upwards, and solder joint is pulled off, and circuit is cut off, if air pressure continuously rises to 1.95~2.35MPA
Or more, cutting 202 is split, gas leakage.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, therefore, only
All any modification, equivalent and improvement etc. made by the utility model the description and the appended drawings content are used, this is should be included in
Within the protection domain of utility model.
Claims (6)
1. a kind of explosion-proof bound edge combination cover cap of cylindrical battery, including head cover, burst disk, sealing ring, orifice plate and insulated ring, special
Sign is, the burst disk is installed below the head cover, installs the orifice plate below the burst disk, the burst disk is upward
What is be open is bowl-shape, and the bowl-shape edge bending of burst disk forms bound edge and lives the edge wrap of the head cover, the cap edge
It is connect with the burst disk by multiple solder joints, the insulated ring, the hole is arranged in the burst disk and the intermediate of the orifice plate
Plate is fixed the insulated ring by being connected to the burst disk, and the orifice plate is connect with the burst disk centrally through solder joint,
The ring set is fixed in the periphery of the head cover, burst disk and orifice plate, and by glue.
2. a kind of explosion-proof bound edge combination cover cap of cylindrical battery as described in claim 1, it is characterised in that：Among the burst disk
The edge of down-set first boss, the first boss has cutting, and second boss is set up among the orifice plate, described
Second boss is connect with the first boss by solder joint.
3. a kind of explosion-proof bound edge combination cover cap of cylindrical battery as claimed in claim 2, it is characterised in that：The head cover upper surface
Nickel plating, sets up third boss, and the side of the third boss offers three holes or six holes.
4. a kind of explosion-proof bound edge combination cover cap of cylindrical battery as claimed in claim 3, it is characterised in that：The insulated ring is to cut open
Face is Z-shaped annulus, and ring is located at the periphery of the first boss.
5. a kind of explosion-proof bound edge combination cover cap of cylindrical battery as claimed in claim 4, it is characterised in that：The insulated ring uses
Polypropylene or high temperature resistant type polypropylene material.
6. a kind of explosion-proof bound edge combination cover cap of cylindrical battery as claimed in claim 5, it is characterised in that：The burst disk and institute
It states orifice plate and uses aluminium sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820038535.1U CN207765485U (en) | 2018-01-10 | 2018-01-10 | The explosion-proof bound edge combination cover cap of cylindrical battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820038535.1U CN207765485U (en) | 2018-01-10 | 2018-01-10 | The explosion-proof bound edge combination cover cap of cylindrical battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207765485U true CN207765485U (en) | 2018-08-24 |
Family
ID=63183869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820038535.1U Expired - Fee Related CN207765485U (en) | 2018-01-10 | 2018-01-10 | The explosion-proof bound edge combination cover cap of cylindrical battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207765485U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113690552A (en) * | 2021-08-26 | 2021-11-23 | 东莞凯德新能源有限公司 | Cylindrical lithium battery cap |
-
2018
- 2018-01-10 CN CN201820038535.1U patent/CN207765485U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113690552A (en) * | 2021-08-26 | 2021-11-23 | 东莞凯德新能源有限公司 | Cylindrical lithium battery cap |
| CN113690552B (en) * | 2021-08-26 | 2023-07-21 | 东莞凯德新能源有限公司 | Cylindrical lithium battery cap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180824 Termination date: 20220110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |