CN206250230U - A kind of novel battery cover plate - Google Patents
A kind of novel battery cover plate Download PDFInfo
- Publication number
- CN206250230U CN206250230U CN201621371752.XU CN201621371752U CN206250230U CN 206250230 U CN206250230 U CN 206250230U CN 201621371752 U CN201621371752 U CN 201621371752U CN 206250230 U CN206250230 U CN 206250230U
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- CN
- China
- Prior art keywords
- aluminium base
- rotating sheet
- cover plate
- battery cover
- upper gasket
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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 a kind of novel battery cover plate; including aluminium base; insulation board is provided with aluminium base lower end; two electrode through holes are provided with aluminium base, electrode terminal is provided with two electrode through holes, described electrode terminal includes positive terminal and negative terminal; steam vent one and steam vent two are provided with aluminium base; battery anti-explosion piece one is provided with steam vent one, battery anti-explosion piece two is provided with steam vent two, current cutting off protection structure is provided with battery anti-explosion piece two.Two settings of burst disk, being capable of preferably pressure release, it is to avoid battery core is exploded.Cylinder is located on Upper gasket, the thickness of rotating sheet it is uniform, it is necessary to tilting force it is uniform, and rotating sheet manufacture craft is simple, readily satisfies demand.Negative terminal uses ceramic seal, the good insulating of negative terminal and Aluminum cover, good airproof performance, and Stability Analysis of Structures is not in the phenomenon of loosening, improves the resistance to overturning of whole battery cover board.
Description
Technical field
The utility model is related to battery cover board technical field, and in particular to a kind of novel battery cover plate.
Background technology
Present electronic product has spread all over industry-by-industry and field, is also the requirement of daily household.Lithium ion box hat
The features such as high power capacity and part throttle characteristics of totally-enclosed battery and its battery core, lithium ion battery is used widely.With power skill
Art is continued to develop, and current electrokinetic cell has the advantages that small volume, capacity be big, power is high, when the abnormality of the battery occurs, one
As chemical reaction is produced due to the conductive material of inside battery, easily produce huge interior pressure in inside battery, now, if
Interior pressure cannot discharge in time, and after gathering to a certain extent, battery easily produces blast, brings danger.To solve above-mentioned asking
Topic, at present, the cover plate of power lithium that in the market is used carries blast resistance construction, but various blast resistance constructions are also not enough to solve battery
Explosion issues.
Shenzhen Kedali Industrial Co., Ltd. has applied a with explosion-proof and power-off protection apparatus lithium battery caps
Plate, patent No. ZL200910109326.7, come pressure release by the way of power-off protection, the road of the electric current of this power-off protection mode
Footpath is needed for by battery core, even if power-off, the battery core that electric current flows into continues to produce discharge and recharge, and battery core is in scraps state completely.
" a kind of battery cover board with double protection functions ", the battery filed in 26 days October in 2016 of the applicant
Cover plate has used current cutting off protection structure, and cylinder is located on rotating sheet, the complex manufacturing technology of set rotating sheet, and is difficult to control
Tilting force, tilting force requirement is larger.
For 26148 lithium battery cover plates, electrode terminal is combined with Aluminum cover mainly uses injection moulding integrated molding structure, will just
Negative terminal is fixed on battery cover board, and the volume for so causing whole battery terminal cover plate is big, injection is difficult to reach each
The position of sealing is needed, the sealing for causing total is poor, electrode terminal stability is poor, the problems such as fraction defective is high.Additionally,
Insulated enclosure is carried out using the material of injection, injected plastics material is easily aging, be easily caused overall structure loosening so that whole electricity
The short life in pond, security performance reduction.
Utility model content
In order to solve the above-mentioned technical problem the utility model provides a kind of novel battery cover plate, and this battery cover board is solved
Existing battery cover board explosion-proof performance is not good, tilting force is difficult to control to, the technical problems such as leakage easily occur.
A kind of novel battery cover plate, including aluminium base, insulation board is provided with aluminium base lower end, and two are provided with aluminium base
Electrode through hole, electrode terminal is provided with two electrode through holes, and described electrode terminal includes positive terminal and negative terminal,
Aluminium base is provided with steam vent one and steam vent two, and battery anti-explosion piece one is provided with steam vent one, is provided with steam vent two
Battery anti-explosion piece two, is provided with current cutting off protection structure on battery anti-explosion piece two.Two settings of burst disk, can preferably let out
Pressure, it is to avoid battery core is exploded.
Preferably, described current cutting off protection structure is located at the side of positive terminal and/or negative terminal.
Preferably, described current cutting off protection structure includes rotating sheet and Upper gasket, the conduction of Upper gasket, cylinder and rotating sheet
Performance is identical, and one end and the electrode terminal of Upper gasket are welded, and Upper gasket other end lower section is provided with cylinder, cylinder, rotating sheet and electricity
The concentric setting of pond burst disk two, rotating sheet is welded on aluminium base, and rotating sheet between Upper gasket before not overturning maintaining
Space, rotating sheet after the upset with Upper gasket on cylinders contact, felt pad is provided between aluminium base and Upper gasket, in felt pad
Between be provided with for rotating sheet upset through through hole.
Preferably, described rotating sheet includes bottom surface and welding bench, and upset face is provided between bottom surface and welding bench, overturns
Face is at an acute angle with bottom surface, and welding bench is located at the end in upset face, bottom surface and the aluminium base plate weld of welding bench.
Preferably, before not overturning, the space height of described cylinder bottom surface to rotating sheet bottom surface is more than or equal to 1mm.
Preferably, the acute angle for being formed between described upset face and bottom surface is 55 ~ 80 °.
Preferably, the thickness in described upset face is 0.45 ~ 0.55mm.The setting of rotating sheet architectural feature, can make to turn over
Rotor overturns when the pressure that battery core pressure reaches 0.35 ~ 0.55MPa is acted on, and rotating sheet can arch upward upwards, with Upper gasket
Contact forms conducting, blocks the electric current into battery core, causes electric current to be no longer flow into continuing to produce discharge and recharge in battery core, so that battery core
Internal pressure is controlled.
Preferably, the bottom surface of the welding bench and the welding manner of aluminium base are Laser Welding.Laser Welding can be effectively ensured
Its air-tightness, bonding strength are big, difficult for drop-off.
Preferably, described negative terminal includes negative terminal, negative terminal through the through hole of Aluminum cover, and two ends protrude from aluminium base
Outside plate, insulating ceramics post is provided between negative terminal and aluminium base, pole disk is provided with below ceramics pole, in negative terminal
Bottom is provided with negative pole lower gasket, and negative pole aluminium head is provided with the bottom of negative terminal, and negative pole aluminium head is welded with Upper gasket.
It is further preferred that described negative pole aluminium head is Laser Welding with the welding manner of Upper gasket.
The utility model provides a kind of novel battery cover plate, by electrode terminal, two burst disks and current cutting off protection structure collection
Into in one, overall structure is simple, low production cost, simple production process, and the timely chopping current of energy, explosion-proof performance stabilization is let out
Pressure uniformity is good, energy safety relief, improves the security performance of battery.The setting of current cutting off protection structure, can be in battery core pressure
When the pressure for reaching 0.35 ~ 0.55MPa is acted on, overturn, rotating sheet can be arched upward upwards, and the cylinders contact with Upper gasket is formed
Conducting, blocks the electric current into battery core, causes electric current to be no longer flow into continuing to produce discharge and recharge in battery core, so that battery core internal pressure is obtained
Control.Cylinder is located on Upper gasket, the thickness of rotating sheet it is uniform, it is necessary to tilting force it is uniform, and rotating sheet manufacture craft is simple,
Readily satisfy demand.Negative terminal uses ceramic seal, the good insulating of negative terminal and Aluminum cover, good airproof performance, Stability Analysis of Structures,
Be not in the phenomenon of loosening, improve the resistance to overturning of whole battery cover board.The utility model simple structure, production technology
Simply, with larger practical value.
Brief description of the drawings
Fig. 1 the utility model overall structure front elevation views.
Fig. 2 the utility model overall structure back elevations.
Fig. 3 the utility model overall structure cutting structural representations.
Fig. 4 the utility model rotating sheet cutting structural representations.
Specific embodiment
In order to allow those skilled in the art to more fully understand the technical solution of the utility model, below to the utility model
It is further elaborated.
As shown in accompanying drawing 1 ~ 4, a kind of novel battery cover plate, including aluminium base 1, insulation board 2 is provided with aluminium base lower end,
Aluminium base is provided with two electrode through holes 3, and electrode terminal is provided with two electrode through holes, and described electrode terminal includes positive pole
Terminal 5 and negative terminal 6, are provided with steam vent 1 and steam vent 29 on aluminium base, and battery anti-explosion is provided with steam vent one
Piece 1, is provided with battery anti-explosion piece 2 10 on steam vent two, and current cutting off protection structure 8 is provided with battery anti-explosion piece two.Two are prevented
The setting of quick-fried and current cutting off protection structure, can realize current cutting off protection and explosion-proof so that total has dual security protection
Function, being capable of preferably pressure release, it is to avoid battery core is exploded.
Negative terminal 6 includes negative terminal 61, negative terminal through the through hole of Aluminum cover, and two ends are protruded from outside aluminium base, negative
Insulating ceramics post 62 is provided between pole and aluminium base, pole disk 63 is provided with below ceramics pole, in the lower end of negative terminal
Portion is provided with negative pole lower gasket 64, and negative pole aluminium first 65 is provided with the bottom of negative terminal, and negative pole aluminium head is welded with Upper gasket, negative pole aluminium
Head is Laser Welding with the welding manner of Upper gasket.Negative terminal uses the good insulating of ceramic seal, negative terminal and Aluminum cover, close
Good, the Stability Analysis of Structures of envelope property, is not in the phenomenon of loosening, improves the resistance to overturning of whole battery cover board.
Current cutting off protection structure 8 is located at the side of positive terminal and/or negative terminal.I.e. current cutting off protection structure can set one
It is individual or two, can be in any side of positive and negative electrode terminal, with any electrode tip when damming when setting one
Son conducting all can be to play a part of to dam, and certainly, when damming, it is also feasible to be turned on positive and negative electrode terminal,
Do not limited by particular location, as long as being all feasible with this principle.The current cutting off protection structure of the present embodiment is located at negative pole end
Sub- side, during upset, turns on negative terminal.
Current cutting off protection structure 8 includes rotating sheet 81 and Upper gasket 82, and one end and the electrode terminal of Upper gasket are welded, Upper gasket
Other end lower section is provided with cylinder 821, and Upper gasket, cylinder are identical with the electric conductivity of rotating sheet, cylinder, rotating sheet and battery anti-explosion
The concentric setting of piece two, is provided with passage 83 on the insulation board of the lower section of rotating sheet, and rotating sheet is welded on aluminium base, upset
Piece maintaining space before not overturning between Upper gasket, rotating sheet after the upset with Upper gasket on cylinders contact, aluminium base
Felt pad 85 is provided between Upper gasket, the through hole 84 passed through for cylinder is provided with the middle of felt pad.Rotating sheet is being under pressure
In the presence of can invert upwards, so as to realize being turned on the cylinder of Upper gasket, electric current is directly transferred to what is connected by Upper gasket
Electrode terminal, the effect that realization is dammed, it is to avoid electric current continues to produce discharge and recharge by battery core, reduces the generation of accident.
Rotating sheet 81 includes bottom surface 811 and welding bench 813, and upset face 812 is provided between bottom surface and welding bench, overturns face
At an acute angle with bottom surface, welding bench is located at the end in upset face, bottom surface and the aluminium base plate weld of welding bench.The bottom surface of welding bench and aluminium
The welding manner of substrate is Laser Welding.Laser Welding can be effectively ensured its air-tightness, bonding strength greatly, difficult for drop-off.
Before not overturning, the space height of described cylinder bottom surface to rotating sheet bottom surface is more than or equal to 1mm, overturns face and bottom
Between face into acute angle be 55 ~ 80 °, the present embodiment use 75 °.The thickness in upset face is 0.45 ~ 0.55mm, and the present embodiment is used
0.5mm.The setting of rotating sheet architectural feature, can be such that rotating sheet is acted in the pressure that battery core pressure reaches 0.5 ± 0.15MPa
When, overturning, rotating sheet can be arched upward upwards, and conducting is formed with the cylinders contact on Upper gasket, block the electric current into battery core,
Electric current is caused to be no longer flow into continuing to produce discharge and recharge in battery core, so that battery core internal pressure is controlled.
This battery cover board, overcharges when battery core is produced, crosses and put or during short circuit, and internal pressure can increase therewith, when reaching
During rated pressure（0.5±0.15MPa）, rotating sheet can arch upward upwards, and the cylinder of rotating sheet contacts to form conducting with Upper gasket, cut
It is disconnected to enter electric current, cause electric current to be no longer flow into continuing to produce discharge and recharge in battery core, so that internal pressure is controlled.Battery anti-explosion structure
Setting, explosion-proof function can be realized.To guarantee safe power-off, this cover plate employs the design of cover plate main body positively charged, i.e.,
Positive terminal is conducting state with aluminium base, Upper gasket.
The utility model provides a kind of novel battery cover plate, by electrode terminal, two burst disks and current cutting off protection structure collection
Into in one, overall structure is simple, low production cost, simple production process, and the timely chopping current of energy, explosion-proof performance stabilization is let out
Pressure uniformity is good, energy safety relief, improves the security performance of battery.The setting of current cutting off protection structure, can be in battery core pressure
When the pressure for reaching 0.35 ~ 0.55MPa is acted on, overturn, rotating sheet can be arched upward upwards, and the cylinders contact with Upper gasket is formed
Conducting, blocks the electric current into battery core, causes electric current to be no longer flow into continuing to produce discharge and recharge in battery core, so that battery core internal pressure is obtained
Control.Cylinder is located on Upper gasket, the thickness of rotating sheet it is uniform, it is necessary to tilting force it is uniform, and rotating sheet manufacture craft is simple,
Readily satisfy demand.Negative terminal uses ceramic seal, the good insulating of negative terminal and Aluminum cover, good airproof performance, Stability Analysis of Structures,
Be not in the phenomenon of loosening, improve the resistance to overturning of whole battery cover board.The utility model simple structure, production technology
Simply, with larger practical value.
Above be the utility model preferably implementation, it is necessary to explanation, without departing substantially from the utility model spirit and
In the case of its essence, those of ordinary skill in the art work as can make various corresponding changes and change according to the utility model
Shape, but these changes and deformation should all belong to the scope of the claims appended by the utility model.
Claims (10)
1. a kind of novel battery cover plate, including aluminium base, insulation board is provided with aluminium base lower end, and two electricity are provided with aluminium base
Pole through hole, electrode terminal is provided with two electrode through holes, and described electrode terminal includes positive terminal and negative terminal, and it is special
Levy and be：Steam vent one and steam vent two are provided with aluminium base, battery anti-explosion piece one are provided with steam vent one, in steam vent
Two are provided with battery anti-explosion piece two, and current cutting off protection structure is provided with battery anti-explosion piece two.
2. novel battery cover plate according to claim 1, it is characterised in that：Described current cutting off protection structure is located at positive terminal
The side of son and/or negative terminal.
3. novel battery cover plate according to claim 1, it is characterised in that：Described current cutting off protection structure includes rotating sheet
And Upper gasket, Upper gasket, cylinder be identical with the electric conductivity of rotating sheet, and one end and the electrode terminal of Upper gasket are welded, Upper gasket
Other end lower section is provided with cylinder, and cylinder, rotating sheet and the concentric setting of battery anti-explosion piece two, rotating sheet are welded on aluminium base,
Rotating sheet maintaining space before not overturning between Upper gasket, rotating sheet after the upset with Upper gasket on cylinders contact, aluminium
Felt pad is provided between substrate and Upper gasket, be provided with the middle of felt pad for rotating sheet upset through through hole.
4. novel battery cover plate according to claim 3, it is characterised in that：Described rotating sheet includes bottom surface and welding
Platform, is provided with upset face between bottom surface and welding bench, and upset face is at an acute angle with bottom surface, and welding bench is located at the end in upset face, weldering
Connect bottom surface and the aluminium base plate weld of platform.
5. novel battery cover plate according to claim 4, it is characterised in that：Before not overturning, described cylinder bottom surface is extremely
The space height of rotating sheet bottom surface is more than or equal to 1mm.
6. novel battery cover plate according to claim 5, it is characterised in that：Formed between described upset face and bottom surface
Acute angle is 55 ~ 80 °.
7. novel battery cover plate according to claim 6, it is characterised in that：The thickness in described upset face for 0.45 ~
0.55mm。
8. novel battery cover plate according to claim 4, it is characterised in that：The bottom surface of the welding bench and the weldering of aluminium base
Mode is connect for Laser Welding.
9. the novel battery cover plate according to any one of claim 3 ~ 8, it is characterised in that：Described negative terminal includes negative
, through the through hole of Aluminum cover, two ends protrude from outside aluminium base, insulation are provided between negative terminal and aluminium base and are made pottery for pole, negative terminal
Porcelain knob, is provided with pole disk below ceramics pole, and negative pole lower gasket is provided with the bottom of negative terminal, in the lower end of negative terminal
Portion is provided with negative pole aluminium head, and negative pole aluminium head is welded with Upper gasket.
10. novel battery cover plate according to claim 9, it is characterised in that：The weldering of described negative pole aluminium head Yu Upper gasket
Mode is connect for Laser Welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621371752.XU CN206250230U (en) | 2016-12-14 | 2016-12-14 | A kind of novel battery cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621371752.XU CN206250230U (en) | 2016-12-14 | 2016-12-14 | A kind of novel battery cover plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206250230U true CN206250230U (en) | 2017-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621371752.XU Active CN206250230U (en) | 2016-12-14 | 2016-12-14 | A kind of novel battery cover plate |
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| CN (1) | CN206250230U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107579175A (en) * | 2017-07-28 | 2018-01-12 | 深圳市欣迪盟新能源科技股份有限公司 | Battery |
| CN109786591A (en) * | 2017-11-15 | 2019-05-21 | 广东九九华立新材料股份有限公司 | A kind of lithium ion battery ceramic cover plate component and lithium ion battery |
-
2016
- 2016-12-14 CN CN201621371752.XU patent/CN206250230U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107579175A (en) * | 2017-07-28 | 2018-01-12 | 深圳市欣迪盟新能源科技股份有限公司 | Battery |
| CN109786591A (en) * | 2017-11-15 | 2019-05-21 | 广东九九华立新材料股份有限公司 | A kind of lithium ion battery ceramic cover plate component and lithium ion battery |
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| GR01 | Patent grant |