CN206134740U - Power battery and power battery safety top cap - Google Patents
Power battery and power battery safety top cap Download PDFInfo
- Publication number
- CN206134740U CN206134740U CN201620865325.0U CN201620865325U CN206134740U CN 206134740 U CN206134740 U CN 206134740U CN 201620865325 U CN201620865325 U CN 201620865325U CN 206134740 U CN206134740 U CN 206134740U
- Authority
- CN
- China
- Prior art keywords
- pole
- electrokinetic cell
- lamina tecti
- top cover
- roll
- 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.)
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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
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- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a power battery and power battery safety top cap. Power battery safety top cap includes lamina tecti, first ploe post, second ploe post, rollover valve and short circuit conducting strip, the lamina tecti is equipped with the rollover valve hole, first ploe post, second ploe post are installed in the lamina tecti, and the first ploe post is insulating with the lamina tecti, and the second ploe post is connected with the lamina tecti electricity, the short circuit conducting strip is located the rollover valve top and is connected with first ploe post electricity, rollover valve locates rollover valve hole radial projection within range, and is connected with the lamina tecti electricity, when the inside atmospheric pressure of power battery was greater than reference pressure, the rollover valve upset made the first ploe post and the connection of second ploe post realization electricity, the periphery in rollover valve hole is equipped with from the lamina tecti convex flange that makes progress. The utility model discloses a flange is add to periphery in the rollover valve hole, and electrolyte spills over and flows in the rollover valve hole and pollute rollover valve when preventing battery filling, can't endure big current rush after avoiding rollover valve contaminated and leads to the explosion, arouses the risk of incident.
Description
Technical field
This utility model belongs to electrokinetic cell field, and more specifically, this utility model is related to a kind of electrokinetic cell safety
Top cover.
Background technology
For the electrokinetic cell for being used as automobile power source, its safety is the most important thing, and it is exactly power current to overcharge test
One of three most extreme safety tests in pond.As electrokinetic cell has a high-energy and high activity, thus its when overcharging often
Fire explosion can occur.At present, the test major part that overcharges of electrokinetic cell is, using external short circuit principle, to pass through before battery is out of control
The roll-over valve of battery cap contact with short-circuit conducting strip and by battery core external short circuit, causes mistake to avoid inside battery core drastically heat production
Control.
The liquid injection hole of electrokinetic cell is arranged on battery cap the position being closer to roll-over valve, short-circuit conducting strip.Electricity
When pond carries out fluid injection by liquid injection hole, electrolyte overflow, roll-over valve are easily polluted by electrolyte.Electrolyte enters into upset
During valve, corrosion on the one hand can be caused to roll-over valve, on the other hand, when roll-over valve is with short-circuit conducting strip conducting short circuit, be contaminated
Roll-over valve and short-circuit conducting strip between contact resistance can increase, roll-over valve cannot tolerate the moment impact of high current and occur
Melting, and cutoff circuit is separated with short-circuit conducting strip, the safeguard protection failure of electrokinetic cell has on fire or blast danger.
In view of this, it is necessory to provide a kind of electrokinetic cell that can solve the problem that the problems referred to above and electrokinetic cell safety roof
Lid.
Utility model content
The purpose of this utility model is：A kind of safe and reliable electrokinetic cell and electrokinetic cell safety top cover are provided, with
Guarantee that electrokinetic cell external short circuit is resistant to the impact of larger current, it is to avoid the generation of security incident.
To achieve these goals, this utility model provides a kind of electrokinetic cell safety top cover, it include lamina tecti, the
One pole, the second pole, roll-over valve and short-circuit conducting strip；Lamina tecti is provided with upset valve opening；First pole, the second pole are installed on
Lamina tecti, the first pole are insulated with lamina tecti, and the second pole is electrically connected with lamina tecti；Short-circuit conducting strip is located above roll-over valve simultaneously
Electrically connect with the first pole；Roll-over valve is in the range of the radially projecting of upset valve opening, and electrically connects with lamina tecti；Work as power current
When pond air pressure inside is more than reference pressure, roll-over valve overturns and makes the first pole and the second pole to realize electrical connection, and its feature exists
In：The periphery of the upset valve opening is provided with from lamina tecti flange protruding upward.
Improve as one kind of this utility model electrokinetic cell safety top cover, the electrokinetic cell safety top cover also includes the
Collets on one pole, short-circuit conducting strip are fixed on lamina tecti by collets insulation on the first pole, on the first pole absolutely
Edge block will overturn the flange cladding of valve opening.
Improve as one kind of this utility model electrokinetic cell safety top cover, on first pole, collets are provided with recessed
Groove, on the first pole, collets will overturn the flange cladding of valve opening by groove.
Improve as one kind of this utility model electrokinetic cell safety top cover, on the first pole, collets are offered and upset
The corresponding perforation of valve opening.
Improve as one kind of this utility model electrokinetic cell safety top cover, the short-circuit conducting strip includes pole connecting portion
With roll-over valve contact site, pole connecting portion is connected with the first pole, and roll-over valve contact site is worn from collets on the first pole
Protrude in hole.
Improve as one kind of this utility model electrokinetic cell safety top cover, on the short-circuit conducting strip, the first pole absolutely
Edge block is fixed by socket with the first pole.
Improve as one kind of this utility model electrokinetic cell safety top cover, the lamina tecti is provided with liquid injection hole.
Improve as one kind of this utility model electrokinetic cell safety top cover, the roll-over valve is led to short circuit after including stress
The rotating sheet and the convex closure for being arranged at rotating sheet of electric piece direction upset.
To achieve these goals, this utility model additionally provides a kind of electrokinetic cell, and which includes housing and is installed on
The electrokinetic cell safety top cover of shell nozzle, wherein, electrokinetic cell safety top cover is aforesaid electrokinetic cell safety top cover.
Compared with prior art, this utility model electrokinetic cell safety top cover at least has following beneficial technique effect：
By flange being set up in the periphery of upset valve opening, increased the intensity of battery cap, while being electrolysed hydrorrhea when preventing battery liquid-filling
Go out to flow into upset valve opening pollution roll-over valve, it is to avoid heavy current impact cannot be tolerated and cause to explode, cause after roll-over valve is contaminated
The risk of security incident.
Description of the drawings
Below in conjunction with the accompanying drawings and specific embodiment, to this utility model electrokinetic cell, electrokinetic cell safety top cover and its have
Beneficial effect is described in detail.
Decomposition texture schematic diagrams of the Fig. 1 for this utility model electrokinetic cell safety top cover.
Schematic perspective views of the Fig. 2 for this utility model electrokinetic cell safety top cover.
Structural representations of the Fig. 3 for the lamina tecti of this utility model electrokinetic cell safety top cover.
B-B cross-sectional schematics of the Fig. 4 for collets on the short-circuit conducting strip and the first pole in Fig. 2.
Fig. 5 is the partial enlarged drawing of part A in Fig. 4.
B-B cross-sectional schematics of the Fig. 6 for Fig. 2.
Fig. 7 is the partial enlarged drawing of part B in Fig. 6.
Specific embodiment
In order that the purpose of this utility model, technical scheme and its Advantageous Effects become apparent from, below in conjunction with accompanying drawing
And specific embodiment, this utility model is further elaborated.It should be appreciated that concrete described in this specification
Embodiment is not intended to limit this utility model just for the sake of explaining this utility model.
Fig. 1 and Fig. 2 is referred to, this utility model electrokinetic cell safety top cover includes lamina tecti 10, the first pole 20, second
Pole 30, roll-over valve 50 and short-circuit conducting strip 60；Lamina tecti 10 is provided with upset valve opening 18, and the periphery for overturning valve opening 18 is provided with from top
The flange 11 protruding upward of cover plate 10；First pole 20, the second pole 30 are installed on lamina tecti 10；Short-circuit conducting strip 60 is located at and turns over
Electrically connect above rotary valve hole 18 and with the first pole 20；Roll-over valve 50 is below upset valve opening 18.
Refer to Fig. 1 to Fig. 3, lamina tecti 10 is provided with the first pole column hole 12, the second pole column hole 14, explosion-proof valve opening 16, turns over
Rotary valve hole 18 and sealable liquid injection hole 19.First pole 20 is by insulating under collets 22, the first pole on the first pole
Block 24 and the first electrode column sealing circle 26 are seal-installed in the first pole column hole 12 of lamina tecti 10, and the second pole 30 passes through the second pole
On post, under collets 32, the second pole, collets 34 and the second electrode column sealing circle 36 are seal-installed on the second pole of lamina tecti 10
In hole 14, explosion-proof valve 40 is seal-installed in explosion-proof valve opening 16, and roll-over valve 50 is seal-installed in upset valve opening 18.
First pole 20 can be positive terminal or negative terminal, and correspondingly, the second pole 30 is negative terminal or positive terminal.
Fig. 1 to Fig. 5 is referred to, collets 22 are the blocks with receiving space on the first pole, installed in lamina tecti
10 top.On first pole, one end of collets 22 is fixed by socket with the first pole 20, and the other end extends to lamina tecti 10
Above upset valve opening 18.The part that collets 22 extend above upset valve opening 18 on first pole offers and upset valve opening 18 pairs
The perforation 28 answered, the periphery of perforation 28 are provided with groove 26, and the flange 11 for overturning valve opening 18 is coated by groove 26.
Short-circuit conducting strip 60 is metallic conductor, and which is contained in the receiving space of collets 22 on the first pole, and pass through
On first pole, collets 22 are insulated with lamina tecti 10.Short-circuit conducting strip 60 includes pole connecting portion 62 and roll-over valve contact site
64.One end of pole connecting portion 62 is entangled the periphery wall of the first pole 20 and is electrically connected with the first pole 20, and the other end is extended to
Above the upset valve opening 18 of lamina tecti 10.Roll-over valve contact site 64 is from pole connecting portion 62 towards the surface of battery core side through the
On one pole, bore a hole to the direction of roll-over valve 50 corresponding with upset valve opening 18 of collets 22 is protruded.
Fig. 1 to Fig. 6 is referred to, roll-over valve 50 is laminated structure, and which includes rotating sheet 52 and convex closure 54.During rotating sheet 52 is
Towards the lamellar body (preferably disk) away from 10 direction of lamina tecti protrusion, the outward flange of rotating sheet 52 is by welding, mechanical engagement in portion
Or splicing is fixed on lamina tecti 10 so that the upset valve opening 18 of 50 top pressure closure plate 10 of roll-over valve is simultaneously electrically connected with lamina tecti 10
Connect.Convex closure 54 is arranged on the middle position of rotating sheet 52, and protrudes and partly stretch into upset valve opening towards the direction of upset valve opening 18
In 18.
Lamina tecti 10 is insulated with short-circuit conducting strip 60, the first pole 20.Lamina tecti 10 is electric with the second pole 30, roll-over valve 50
Connection.There is gap and insulated from each other between short circuit conducting strip 60 before overturning in roll-over valve 50.
When battery is in home and state, the form of rotating sheet 52 is the non-rollover states shown in Fig. 6.Now,
There is gap between convex closure 54 and roll-over valve contact site 64 and insulated from each other, battery will not occur external short circuit.
When battery is overcharged, drastically will generate heat and aerogenesis inside its battery core, when air pressure is more than predetermined value, upset
Stress is overturn by piece 52 to 60 direction of short-circuit conducting strip so that convex closure 54 is contacted with roll-over valve contact site 64.Now, the first pole
Post 20 via short-circuit conducting strip 60, roll-over valve 50, lamina tecti 10 with and the second pole 30 realize be electrically connected, the battery core of battery is outer
Short circuit.
Compared with prior art, this utility model electrokinetic cell safety top cover at least has advantages below：
First, by flange 11 being set up in the periphery of upset valve opening 18, increased the intensity of battery cap, while preventing electricity
During the fluid injection of pond, electrolyte overflows and flows into 18 pollution roll-over valve 50 of roll-over valve hole, it is to avoid cannot tolerate big electricity after roll-over valve 50 is contaminated
Stream impact, when in the pressure limit of regulation, abrupt transients overturn to form external short circuit roll-over valve 50, roll-over valve 50 can be safe
Without there is burn through, the potential safety hazard that on the one hand can prevent battery from causing when occurring unexpected on the other hand can be with for work
The energy content of battery is discharged by external short circuit, it is to avoid cause bigger security incident.And the wind of the security incident that causes to explode, cause
Danger.
Second, by the first pole collets 22 arrange groove 26, increased upset valve opening 18 flange 11 with it is short
Creep age distance between road conducting strip 60, under the conditions of non-default, surprisingly conducting is caused with short-circuit conducting strip 60 to eliminate roll-over valve 50
The potential safety hazard of accident.
The announcement and teaching of book according to the above description, this utility model those skilled in the art can also be to above-mentioned reality
Applying example carries out appropriate change and modification.Therefore, this utility model is not limited to specific embodiment disclosed and described above,
Some modifications and changes of the present utility model should also be as falling in scope of the claims of the present utility model.Additionally,
Although some specific terms used in this specification, these terms are not merely for convenience of description, new to this practicality
Type constitutes any restriction.
Claims (9)
1. a kind of electrokinetic cell safety top cover, which includes lamina tecti, the first pole, the second pole, roll-over valve and short-circuit conducting strip；
Lamina tecti is provided with upset valve opening；First pole, the second pole are installed on lamina tecti, and the first pole is insulated with lamina tecti, the second pole
Post is electrically connected with lamina tecti；Short-circuit conducting strip is electrically connected above roll-over valve and with the first pole；Roll-over valve is located at roll-over valve
In the range of the radially projecting in hole, and electrically connect with lamina tecti；When electrokinetic cell air pressure inside is more than reference pressure, roll-over valve is turned over
Turn and make the first pole and the second pole to realize electrical connection, it is characterised in that：The periphery of the upset valve opening is provided with from lamina tecti
Flange protruding upward.
2. electrokinetic cell safety top cover according to claim 1, it is characterised in that：The electrokinetic cell safety top cover is also wrapped
Collets on the first pole are included, short-circuit conducting strip is fixed on lamina tecti by collets insulation on the first pole, the first pole
Upper collets will overturn the flange cladding of valve opening.
3. electrokinetic cell safety top cover according to claim 2, it is characterised in that：On first pole, collets are provided with
Groove, on the first pole, collets will overturn the flange cladding of valve opening by groove.
4. electrokinetic cell safety top cover according to claim 2, it is characterised in that：On first pole collets offer with
The corresponding perforation of upset valve opening.
5. electrokinetic cell safety top cover according to claim 4, it is characterised in that：The short-circuit conducting strip includes that pole connects
Socket part and roll-over valve contact site, pole connecting portion are connected with the first pole, and roll-over valve contact site is from collets on the first pole
Perforation in protrude.
6. electrokinetic cell safety top cover according to claim 2, it is characterised in that：The short-circuit conducting strip, the first pole
Upper collets are fixed by socket with the first pole.
7. electrokinetic cell safety top cover according to claim 1, it is characterised in that：The lamina tecti is provided with liquid injection hole.
8. electrokinetic cell safety top cover according to claim 1, it is characterised in that：The roll-over valve is included after stress to short
The rotating sheet of road conducting strip direction upset and the convex closure for being arranged at rotating sheet.
9. a kind of electrokinetic cell, including housing and the electrokinetic cell safety top cover of shell nozzle is installed on, it is characterised in that：Institute
The electrokinetic cell safety top cover that electrokinetic cell safety top cover is stated any one of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620865325.0U CN206134740U (en) | 2016-08-11 | 2016-08-11 | Power battery and power battery safety top cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620865325.0U CN206134740U (en) | 2016-08-11 | 2016-08-11 | Power battery and power battery safety top cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206134740U true CN206134740U (en) | 2017-04-26 |
Family
ID=58563625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620865325.0U Active CN206134740U (en) | 2016-08-11 | 2016-08-11 | Power battery and power battery safety top cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206134740U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107240650A (en) * | 2017-06-27 | 2017-10-10 | 东莞塔菲尔新能源科技有限公司 | Electrokinetic cell cap assembly and electrokinetic cell |
| CN107579172A (en) * | 2017-07-28 | 2018-01-12 | 深圳市欣迪盟新能源科技股份有限公司 | Over-charging of battery protection structure and battery cover |
| CN107634156A (en) * | 2017-09-07 | 2018-01-26 | 深圳市长盈精密技术股份有限公司 | Cover plate of power battery and its electrokinetic cell |
| CN107732094A (en) * | 2017-11-16 | 2018-02-23 | 北京国能电池科技有限公司 | Over-charging of battery safety guard and lithium ion battery |
| CN108428827A (en) * | 2018-03-08 | 2018-08-21 | 中航锂电（洛阳）有限公司 | A kind of battery cover board and battery, vehicle using the battery cover board |
| CN109671899A (en) * | 2018-12-26 | 2019-04-23 | 蜂巢能源科技有限公司 | Cover plate assembly for battery core and the battery core with it |
| CN111244339A (en) * | 2018-11-29 | 2020-06-05 | 比亚迪股份有限公司 | Battery cover plate and battery with same |
| CN111344882A (en) * | 2017-11-20 | 2020-06-26 | Cps科技控股有限公司 | Overcharge protection device with non-uniform terminal pad |
-
2016
- 2016-08-11 CN CN201620865325.0U patent/CN206134740U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107240650A (en) * | 2017-06-27 | 2017-10-10 | 东莞塔菲尔新能源科技有限公司 | Electrokinetic cell cap assembly and electrokinetic cell |
| CN107579172A (en) * | 2017-07-28 | 2018-01-12 | 深圳市欣迪盟新能源科技股份有限公司 | Over-charging of battery protection structure and battery cover |
| CN107634156A (en) * | 2017-09-07 | 2018-01-26 | 深圳市长盈精密技术股份有限公司 | Cover plate of power battery and its electrokinetic cell |
| CN107732094A (en) * | 2017-11-16 | 2018-02-23 | 北京国能电池科技有限公司 | Over-charging of battery safety guard and lithium ion battery |
| CN111344882A (en) * | 2017-11-20 | 2020-06-26 | Cps科技控股有限公司 | Overcharge protection device with non-uniform terminal pad |
| US11539103B2 (en) | 2017-11-20 | 2022-12-27 | Cps Technology Holdings Llc | Overcharge protection device with uneven terminal pads |
| CN108428827A (en) * | 2018-03-08 | 2018-08-21 | 中航锂电（洛阳）有限公司 | A kind of battery cover board and battery, vehicle using the battery cover board |
| CN108428827B (en) * | 2018-03-08 | 2021-04-30 | 中航锂电（洛阳）有限公司 | Battery cover plate and battery and vehicle using same |
| CN111244339A (en) * | 2018-11-29 | 2020-06-05 | 比亚迪股份有限公司 | Battery cover plate and battery with same |
| CN109671899A (en) * | 2018-12-26 | 2019-04-23 | 蜂巢能源科技有限公司 | Cover plate assembly for battery core and the battery core with it |
| CN109671899B (en) * | 2018-12-26 | 2021-09-21 | 蜂巢能源科技有限公司 | Cover plate assembly for battery cell and battery cell with cover plate assembly |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |