CN202855821U - Adjustable safety valve of nickel-hydrogen power battery - Google Patents
Adjustable safety valve of nickel-hydrogen power battery Download PDFInfo
- Publication number
- CN202855821U CN202855821U CN2012204852647U CN201220485264U CN202855821U CN 202855821 U CN202855821 U CN 202855821U CN 2012204852647 U CN2012204852647 U CN 2012204852647U CN 201220485264 U CN201220485264 U CN 201220485264U CN 202855821 U CN202855821 U CN 202855821U
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- CN
- China
- Prior art keywords
- valve body
- battery case
- spool
- valve
- spool bore
- 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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- 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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- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model discloses an adjustable safety valve of a nickel-hydrogen power battery, belonging to the field of nickel-hydrogen power batteries. A valve core hole is arranged in the center of a valve body (2), the valve core hole is as high as the upper part of the valve body (2) and is internally provided with an internal thread, a valve core comprises an upper pressure regulating thread (3) and a lower rubber plug (4), the valve core is arranged in the valve core hole in the upper part of the valve body (2), a sputtering-preventing cover (1) covers the valve body (2), an exhaust channel is formed between the valve body (2) and the sputtering-preventing cover (1), and a circular hole is arranged in the center of the bottom surface of the sputtering-preventing cover (1), an O-shaped ring (6) is arranged between a battery case (7) in the circular hole and a first step of the vale body (2) and is used for isolating the valve body (2) from the battery case (7) in a sealing manner. The adjustable safety valve has the advantages of capability of preventing an electrolytic solution carried out by gas blown out from the battery from sputtering other electrical elements and avoiding short circuit failure and pollution, and adjustable set pressure.
Description
Technical field
Ni-MH power cell adjustable safety valve belongs to the Ni-MH power cell field.Specific design is a kind of to be installed in the relief valve device that Ni-MH battery inside can be regulated the inside battery setting pressure.
Background technology
In recent years, along with continuing to increase of every profession and trade need for electricity, electricity shortage becomes a very important problem, thereby the reusable type power supply use become trend, and Ni-MH power cell relies on its good performance and negligible memory effect almost when discharging and recharging, and deeply is subjected to users' favor.Ni-MH power cell follows the oxidation of inside battery when normally discharging and recharging or reduction is counter has a small amount of gas and disengage, but in the situation that excessively charge and discharge a lot of that the gas that disengages can increase, should in time release to the external world by safety valve when the active force that gas forms battery case reaches certain limit, otherwise will cause the battery case distortion.Now on the market the setting pressure of safety valve is all unadjustable, and pressure protect scope discreteness is very large so that caused battery in use the part battery can not in time protect because of safety valve and be out of shape seriously, become potential safety hazard.
Summary of the invention
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, provide a kind of electrolyte of avoiding inside battery gas when ejection to take out of to be splashed on other electric devices, cause the adjustable Ni-MH power cell adjustable safety valve of short trouble and pollution and pressure.
The technical scheme that its technical problem that solves the utility model adopts is: this Ni-MH power cell adjustable safety valve, comprise valve body and place the interior spool of valve body, it is characterized in that: the valve body center is provided with spool bore, the height of spool bore and valve body top are contour and be provided with internal thread, spool is comprised of voltage regulation screw and the bottom rubber plug on top, spool is installed in the spool bore on valve body top and is threaded, the valve body outside is covered with the Anti-splash cover, form the exhaust passage between valve body and the Anti-splash cover, Anti-splash cover bottom center position has circular port, mounting O-shaped rings is with seal isolation between valve body and the battery case between the top of the interior battery case of circular port and first step of valve body, border, valve body bottom is provided with a plurality of escape orifices that communicate with spool bore and exhaust passage, the valve body bottom is provided with the leakage path that communicates with spool bore and battery case, and valve body lower portion is that step-like its bottom is installed in the venthole of battery case.
The step-like of described valve body lower portion is two-layer, and diameter successively diminishes from top to bottom, and one section of the diameter minimum is provided with external screw thread, and the venthole of battery case is provided with internal thread, and this section is threaded togather with the venthole of battery case.
Described spool bore bottom is taper, and the taper of the rubber plug of spool bottom and spool bore bottom is suitable.
Operation principle
When inside battery because excessive discharging and recharging causes pressure to become large and when surpassing set point, cell internal pressure will overcome the elasticity of rubber plug, make internal gas be discharged to outside batteries by leakage path and escape orifice, owing to being provided with the Anti-splash cover, the discharge so gas can make progress along the exhaust passage between Anti-splash cover and the valve body, the electrolyte of having taken out of when having avoided the gas ejection is splashed to and causes short trouble and pollution on other electric devices.
Compared with prior art, the beneficial effect that has of the utility model is:
1, can regulate as required by voltage regulation screw the fail safe when having guaranteed battery charging and discharging, and the consistency of product to the setting pressure of inside battery;
2, in the escape orifice arranged outside Anti-splash cover, the electrolyte that can effectively avoid inside battery gas when ejection to take out of is splashed to and causes short trouble and pollution on other electric devices;
3, the safety valve arrangement is simple, and safety, reliability are higher.
Description of drawings
Fig. 1 is the utility model profile plan structure schematic diagram.
Fig. 2 is the A-A sectional structure schematic diagram of Fig. 1.
Wherein: 1, Anti-splash cover 2, valve body 3, voltage regulation screw 4, rubber plug 5, escape orifice 6, O type circle 7, battery case 8, leakage path.
Embodiment
Fig. 1 ~ 2nd, most preferred embodiment of the present utility model is described further below in conjunction with 1 ~ 2 pair of the utility model of accompanying drawing.
As shown in Figure 1: this Ni-MH power cell adjustable safety valve is comprised of Anti-splash cover 1, valve body 2, voltage regulation screw 3, rubber plug 4, escape orifice 5, O type circle 6, battery case 7 and leakage path 8.Valve body 2 centers are provided with spool bore, and the height of spool bore and one section of valve body 2 topmost are contour, are provided with internal thread in the spool bore inboard.The spool bore bottom is tightened up to the center and is formed the downward conical design of cone point.Valve body 2 bottoms are provided with the leakage path 8 that communicates with spool bore and battery case 7, border, valve body 2 bottom is horizontally disposed with a plurality of escape orifices 5 with spool bore and exhaust passage UNICOM, and the opening of escape orifice 5 in spool bore inside is positioned at the position that spool bore bottom conical design begins to form.
Spool is comprised of voltage regulation screw 3 and rubber plug 4, rubber plug 4 is placed on the spool bore bottom, the conical design that the lower end is similarly conical design and shape and spool bore bottom is complementary, voltage regulation screw 3 is placed on rubber plug 4 tops, by compressing in the voltage regulation screw 3 precession spool bore and with rubber plug 4, rubber plug 4 is blocked the leakage path 8 of spool bore bottom and the escape orifice 5 of horizontal level.
The specific works process is as follows: when battery discharges and recharges that the gas that causes inside battery to discharge increases and when surpassing the set point of cell internal pressure owing to excessive, the air pressure of inside battery will be applied to the inner surface of battery case 7, owing to sealing by O type circle 6 between valve body 2 and the battery case 7, so inside battery air pressure will be applied to by leakage path 8 rubber plug 4 lower surfaces of spool bottom, and make rubber plug 4 produce deformation.When pressure acquires a certain degree, will overcome the elastic force of rubber plug 4, and release out by the escape orifice 5 of side.Owing to having the exhaust passage between valve body 2 outer surfaces and the Anti-splash cover 1 inner surface border, thereby upwards vertically discharge along the exhaust passage from the gas that inside battery releases out, the electrolyte of having taken out of when having avoided the gas ejection is splashed to and causes short trouble and pollution on other electric devices.
The above, it only is preferred embodiment of the present utility model, be not to be the restriction of the utility model being made other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment does, still belongs to the protection range of technical solutions of the utility model according to technical spirit of the present utility model.
Claims (3)
1. Ni-MH power cell adjustable safety valve, comprise valve body (2) and place the interior spool of valve body (2), it is characterized in that: valve body (2) center is provided with spool bore, the height of spool bore and valve body (2) top is contour and be provided with internal thread, spool is comprised of voltage regulation screw (3) and the bottom rubber plug (4) on top, spool is installed in the spool bore on valve body (2) top and is threaded, valve body (2) outside is covered with Anti-splash cover (1), form the exhaust passage between valve body (2) and the Anti-splash cover (1), Anti-splash cover (1) bottom center position has circular port, mounting O-shaped rings (6) is with seal isolation between valve body (2) and the battery case (7) between the top of the interior battery case (7) of circular port and first step of valve body (2), border, valve body (2) bottom is provided with a plurality of escape orifices that communicate with spool bore and exhaust passage (5), valve body (2) bottom is provided with the leakage path (8) that communicates with spool bore and battery case (7), and valve body (2) bottom is that step-like its bottom is installed in the venthole of battery case (7).
2. Ni-MH power cell adjustable safety valve according to claim 1, it is characterized in that: the step-like of described valve body (2) bottom is two-layer, diameter successively diminishes from top to bottom, one section of the diameter minimum is provided with external screw thread, the venthole of battery case (7) is provided with internal thread, and the venthole of this section and battery case (7) is threaded togather.
3. Ni-MH power cell adjustable safety valve according to claim 1 is characterized in that: described spool bore bottom is taper, and the rubber plug of spool bottom (4) is suitable with the taper of spool bore bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204852647U CN202855821U (en) | 2012-09-21 | 2012-09-21 | Adjustable safety valve of nickel-hydrogen power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204852647U CN202855821U (en) | 2012-09-21 | 2012-09-21 | Adjustable safety valve of nickel-hydrogen power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202855821U true CN202855821U (en) | 2013-04-03 |
Family
ID=47986987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204852647U Expired - Fee Related CN202855821U (en) | 2012-09-21 | 2012-09-21 | Adjustable safety valve of nickel-hydrogen power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202855821U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928646A (en) * | 2014-04-25 | 2014-07-16 | 长兴金程橡胶有限公司 | Safety valve of pressure adjustable storage battery |
-
2012
- 2012-09-21 CN CN2012204852647U patent/CN202855821U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928646A (en) * | 2014-04-25 | 2014-07-16 | 长兴金程橡胶有限公司 | Safety valve of pressure adjustable storage battery |
| CN103928646B (en) * | 2014-04-25 | 2016-01-13 | 长兴金程橡胶有限公司 | Adjustable die mould storage battery safety valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20150921 |
|
| EXPY | Termination of patent right or utility model |