CN2842751Y - Column-type constant-pressure anti-burst cell lid-cap - Google Patents
Column-type constant-pressure anti-burst cell lid-cap Download PDFInfo
- Publication number
- CN2842751Y CN2842751Y CN 200520073977 CN200520073977U CN2842751Y CN 2842751 Y CN2842751 Y CN 2842751Y CN 200520073977 CN200520073977 CN 200520073977 CN 200520073977 U CN200520073977 U CN 200520073977U CN 2842751 Y CN2842751 Y CN 2842751Y
- Authority
- CN
- China
- Prior art keywords
- cover plate
- explosion
- proof
- cell
- lower cover
- 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
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- Y02E60/12—
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- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model relates to a constant-pressure explosion-proof nickel-hydrogen and nickel-cadmium cell covering cap. The composing form of an upper covering plate (1) and a lower covering plate (6) of a cell covering cap comprises the welding form and the flanging form. The inner part of a space between the upper cover plate (1) and the lower cover plate (6) is provided with a helical pressure spring (2) and a thin gage sheet (5) which can be provided with a metal sheet (4) in a pressing way from top to bottom. A big head of the helical pressure spring (2) is in contact with the upper cover plate (1) in an inverted way. The metal sheet (4) on the gage sheet (5) is upwards in contact with a small head of the helical pressure spring (2). The gage sheet (5) can close in an air leakage hole (3b) of the lower cover plate (6). The explosion-proof cell covering cap can make use of elasticity of the spring to carry out air leakage, which can avoid the defect that a rubber ball (plug) is aging so as to result in the ineffective explosion-proof effect. Thus, the cell can not be influenced by the high temperature and the low temperature. The explosion-proof air leakage pressure can keep stable, so that the cell exploding phenomenon can not happen.
Description
Technical field
The utility model relates to a kind of anti-explosion battery block, particularly a kind of ni-mh of constant voltage, nickel-cadmium cell explosion-proof cap.
Background technology
The cylindrical battery block always is that employing glueballs (plug) by structural member pressurization back sealing pore, when cell internal pressure reaches certain limit, relies on the elastic force of glueballs (plug) own to lose heart both at home and abroad at present.Because the temperature influence of glueballs (plug) own is bigger, cause battery cap explosion-proof pressure benchmark instability thus.High temperature more than 100 ℃ or below 0 ℃ the battery popping pressure to depart from fixed value bigger, cause battery the keep one's end up blast or the too early energy waste of losing heart, the long term storage material yield, sealing property descends, glueballs (plug) follows the string, finally seal failure.
Summary of the invention
The purpose of this utility model just provides a kind of anti-explosion battery block that can constant battery popping pressure.The utility model battery cap is the same with the conventional batteries block, divides two kinds on welding helmet and flange cap.The utility model battery cap difference tradition block is the difference on the explosion-protection equipment.The tradition block is exactly that glueballs (plug) welding or the flange that will add a column type or other shapes between upper cover plate and the lower cover structural member form.This anti-explosion battery block then is to add a thin film welding or a flange that is pressed with sheet metal and form being provided with spiral spring between upper and lower cover plate.This blast resistance construction is to utilize the elasticity of spring to lose heart, and has avoided the defective of the aging explosion-proof inefficacy of glueballs (plug), makes battery not be subjected to the influence of high temperature and low temperature, and explosion-proof popping pressure is stable, battery explosion phenomenon can not take place.
Description of drawings
Fig. 1 is the utility model Welding Structure schematic diagram;
Fig. 2 is the utility model turnup structure schematic diagram.
Embodiment
Anti-explosion battery block in shown in Figure 1, be provided with helical form stage clip 2 and thin film 5 in the space between its upper cover plate 1 and the lower cover 6 from top to down, the sheet metal 4 that pressing one deck and thin film area equate on the thin film, helical form stage clip 2 greatly head-up contacts upper cover plate 1, sheet metal 4 on the film 5 contacts the microcephaly of helical form stage clip 2 up, the bleeder port 3b of film 5 sealing lower covers 6.Can produce gas after the excessive frequent charge of battery inner chamber, the discharge, the interior pressure increases, gas is by the sheet metal 4 on compressing film 5 of the pore 3b on the lower cover 6 and the film, make stage clip 2 bear certain pressure, when pressure surpasses certain limit, the stage clip compression, gaseous emission is in the permanent air chamber of the block between upper and lower cover plate, pore 3a around upper cover plate 1 discharges again, keeps cell internal pressure stable, does not blast.
The layer of metal sheet 4 of pressing on the film 5 can effectively keep film intensity, is unlikelyly exposed by stage clip or is out of shape.Upper and lower cover plate can be by two kinds of form assemblings, and a kind of is with upper cover plate and lower cover welding by percussion welder; Another kind is to carry out flange mechanically, and the lower cover periphery is firmly encased the upper cover plate periphery.
Claims (1)
1, a kind of cylindrical constant pressure explosion-proof battery cap, mainly comprise upper cover plate (1) and lower cover (6), the composition form of upper cover plate and lower cover comprises welding and two kinds of flange, it is characterized in that: the thin film (5) that is provided with helical form stage clip (2) and pressing layer of metal sheet (4) in the space between upper cover plate (1) and the lower cover (6) from top to down, helical form stage clip (2) greatly head-up contacts upper cover plate (1), sheet metal (4) on the film (5) contacts the microcephaly of helical form stage clip (2) up, the bleeder port (3b) of film (5) sealing lower cover (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520073977 CN2842751Y (en) | 2005-07-28 | 2005-07-28 | Column-type constant-pressure anti-burst cell lid-cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520073977 CN2842751Y (en) | 2005-07-28 | 2005-07-28 | Column-type constant-pressure anti-burst cell lid-cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2842751Y true CN2842751Y (en) | 2006-11-29 |
Family
ID=37446622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520073977 Expired - Fee Related CN2842751Y (en) | 2005-07-28 | 2005-07-28 | Column-type constant-pressure anti-burst cell lid-cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2842751Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101853930A (en) * | 2010-06-10 | 2010-10-06 | 芜湖根源科技有限公司 | Power-type lithium ion battery explosion-proof cap and manufacturing method thereof |
| CN101887947A (en) * | 2010-06-17 | 2010-11-17 | 深圳市山木电池科技有限公司 | Combined battery cap |
| CN101281957B (en) * | 2007-04-05 | 2012-05-23 | 深圳市比克电池有限公司 | Closing battery with explosion-proof function |
| CN101304078B (en) * | 2007-05-09 | 2012-05-23 | 深圳市比克电池有限公司 | Explosion-proof battery |
-
2005
- 2005-07-28 CN CN 200520073977 patent/CN2842751Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101281957B (en) * | 2007-04-05 | 2012-05-23 | 深圳市比克电池有限公司 | Closing battery with explosion-proof function |
| CN101304078B (en) * | 2007-05-09 | 2012-05-23 | 深圳市比克电池有限公司 | Explosion-proof battery |
| CN101853930A (en) * | 2010-06-10 | 2010-10-06 | 芜湖根源科技有限公司 | Power-type lithium ion battery explosion-proof cap and manufacturing method thereof |
| CN101887947A (en) * | 2010-06-17 | 2010-11-17 | 深圳市山木电池科技有限公司 | Combined battery cap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061129 Termination date: 20110728 |