CN207282544U - A kind of lithium-ion-power cell cap structure - Google Patents
A kind of lithium-ion-power cell cap structure Download PDFInfo
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- CN207282544U CN207282544U CN201721252214.3U CN201721252214U CN207282544U CN 207282544 U CN207282544 U CN 207282544U CN 201721252214 U CN201721252214 U CN 201721252214U CN 207282544 U CN207282544 U CN 207282544U
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- battery
- lithium
- ion
- coping plate
- power cell
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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)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model provides a kind of lithium-ion-power cell cap structure applied to new-energy automobile power battery parts technical field,Battery negative column (4) side of the lithium-ion-power cell cap structure or battery positive pole (5) side set rotating sheet (6),Rotating sheet (6) front end is configured to extend to the structure of burst disk (3) lower position,Line of weakness (7) in "U" font is set in burst disk (3),The lithium-ion-power cell cap structure of the utility model,It is simple in structure,Cost is low,When inside battery air pressure increases,Can effectively ensure the indentation face of burst disk can rupture opening,So that inside battery air pressure is drained in time,Prevent battery explosion,The opening on rupture disk is allowd rotating sheet is passed through explosionproof hole at the same time,Upset to outside and coping plate electrically connects,Electrically connect positive and negative anodes,Realize battery external short circuit,Avoid overcharging and battery is further damaged,Improve the security performance of lithium ion battery.
Description
Technical field
The utility model belongs to new-energy automobile power battery parts technical field, is to be related to one kind more specifically
Lithium-ion-power cell cap structure.
Background technology
With the development of society and the enhancing of people's environmental consciousness, more and more equipment selections are with chargeable secondary electricity
As power supply, such as mobile phone, laptop, electric tool and electric automobile, this should for chargeable secondary cell in pond
Wide space is provided with development.Electric automobile and energy-accumulating power station etc. are generally required using the power battery with large capacity
As power supply.These power batteries are except with high power capacity, should also have good security and longer cycle life
Deng can be only achieved and the standard used and meet the needs of people.Lithium ion battery of the prior art, battery cap on piece are explosion-proof
Piece is single burst disk of the sealing welding in coping plate center, and such structure can increase power battery to a certain extent
Security performance.But in actual use, battery in overcharge or internal thermal runaway etc. in special circumstances, air pressure inside increase,
Rupture disk rupture gap is smaller so that air pressure inside less than timely excretion, cause after battery explosion, and rupture disk detonation still
Make battery continue to be damaged, cause comprehensively protect power battery, therefore, the ion battery security performance of existing structure
It is not satisfactory.
Utility model content
Technical problem to be solved in the utility model is：In view of the deficiencies of the prior art, there is provided a kind of simple in structure, system
Cause low, when inside battery air pressure increases, can effectively ensure that burst disk rupture is opened, and after ensuring rotating sheet upset
Contact coping plate can be overturn exactly so that inside battery air pressure is drained in time, prevents battery explosion, while cause rupture disk
On opening rotating sheet can be made to pass through explosionproof hole, overturn to outside and coping plate and electrically connect so that positive and negative anodes electrically connect, realize
Battery external short circuit, avoids overcharging and power battery is further damaged, so as to improve the lithium of the security performance of lithium ion battery comprehensively
Ion battery cap structure.
Solve the problems, such as techniques discussed above, the technical solution that the utility model is taken is：
The utility model is a kind of lithium-ion-power cell cap structure, the lithium-ion-power cell cap structure bag
Coping plate is included, explosion-proof film perforation is set on coping plate, the coping plate position welding burst disk of explosion-proof film perforation lower position, under coping plate
Side sets battery negative column and battery positive pole, and battery negative column side or battery positive pole side set rotating sheet, rotating sheet
Front end is configured to extend to the structure of burst disk lower position, and the indentation in "U" font is set in the burst disk
Line, the rotating sheet are arranged to structure made of copper material.
The burst disk is structure made of flake aluminum, is indentation face among line of weakness, and rotating sheet is made in gases at high pressure
With lower to when being overturn close to coping plate direction, rotating sheet front end is configured to the structure for promoting indentation to open upwardly.
Sealing ring I is set with the battery negative column, sealing ring II is set with battery positive pole, battery negative column passes through negative
Extremely upper plastic cement and anode riveting aluminium block riveting, battery positive pole pass through positive electrode resistance piece and cathode riveting aluminium block riveting, coping plate
Plastic cement under cathode is set between battery positive pole, plastic cement under anode is set between coping plate and battery negative column.
Also set up explosion-proof valve screening glass on the coping plate of the burst disk top position, explosion-proof valve screening glass be arranged to by
Polythene material or polypropylene material are made.
The rotating sheet is arranged to the structure made of matter soft copper material.
Using the technical solution of the utility model, following beneficial effect can be obtained：
Lithium-ion-power cell cap structure described in the utility model, is equipped with explosion-proof film perforation among coping plate, explosion-proof
Burst disk is welded with coping plate below film perforation.Rotating sheet is fixedly connected with battery negative column or battery positive pole side, and
Support column is then set on coping plate, in this way, when inside battery air pressure is higher, air pressure exerts a force on rotating sheet, promotes rotating sheet
Bent to burst disk side, and when rotating sheet is bent, since burst disk is flake aluminum, and "U" is carved with centre in burst disk
The line of weakness of font, in the case that inside battery air pressure is higher, burst disk tears rupture along line of weakness, and air pressure is by burst disk
Indentation wash open upwardly, indentation face with being flipped up along indentation face and the side that burst disk links together, in this way, upset
Piece can overturn to outside and coping plate through explosion-proof film perforation and electrically connect so that positive and negative anodes electrically connect short circuit, avoid battery into
One step is damaged, and effective protective effect is played to battery.The lithium-ion-power cell cap structure of the utility model, it is simple in structure,
Manufacture cost is low, and when inside battery air pressure increases, can effectively ensure the indentation face of burst disk can rupture opening so that electricity
Pond air pressure inside is drained in time, prevents battery explosion, while allows the opening on rupture disk rotating sheet is passed through explosionproof hole,
Upset is electrically connected to outside and coping plate, is electrically connected positive and negative anodes, is realized battery external short circuit, avoids overcharging and battery is further damaged
It is bad, improve the security performance of lithium ion battery.
Brief description of the drawings
Brief description is made to the content expressed by each attached drawing of this specification and the mark in figure below：
Fig. 1 is the structure diagram of lithium-ion-power cell cap structure described in the utility model；
Fig. 2 is the configuration schematic diagram of each component of lithium-ion-power cell cap structure described in the utility model；
Fig. 3 is the overlooking the structure diagram of the burst disk of lithium-ion-power cell cap structure described in the utility model；
Fig. 4 is the present invention looks up structural representation of lithium-ion-power cell cap structure described in the utility model；
Fig. 5 is the overlooking the structure diagram of lithium-ion-power cell cap structure described in the utility model；
Fig. 6 is the side view structure signal after lithium-ion-power cell cap structure described in the utility model explodes
Figure；
Attached drawing acceptance of the bid note be respectively：1st, coping plate；2nd, explosion-proof film perforation；3rd, burst disk；4th, battery negative column；5th, anode
Column；6th, rotating sheet；7th, line of weakness；8th, sealing ring I；9th, sealing ring II；10th, plastic cement on anode；11st, anode riveting aluminium block；12nd, just
Electrode resistance piece；13rd, cathode riveting aluminium block；14th, plastic cement under cathode；15th, plastic cement under anode；16th, explosion-proof valve screening glass；17th, fluid injection
Hole；18th, indentation face.
Embodiment
Below against attached drawing, by the description of the embodiment, to specific embodiment of the present utility model as involved
Mutual alignment and connection relation, the effect of each several part and operation principle between the shape of each component, construction, each several part etc. make into
The detailed description of one step：
As shown in attached drawing 1- attached drawings 6, the utility model is a kind of lithium-ion-power cell cap structure, the lithium ion
Top cover structure of power battery includes coping plate 1, and explosion-proof film perforation 2, the coping plate 1 of explosion-proof 2 lower position of film perforation are set on coping plate 1
Burst disk 3 is welded at position, and the lower section of coping plate 1 sets battery negative column 4 and battery positive pole 5,4 side of battery negative column or battery
5 side of positive terminal sets rotating sheet 6, and 6 front end of rotating sheet is configured to extend to the structure of 3 lower position of burst disk, described
Burst disk 3 on u-shaped line of weakness 7 is set, the rotating sheet 6 is arranged to structure made of copper material.Said structure, is being pushed up
It is equipped with explosion-proof film perforation among cover plate, burst disk is welded with the coping plate below explosion-proof film perforation.In battery negative column or battery just
Pole side is fixedly connected with rotating sheet, and support column is then set on coping plate, in this way, when inside battery air pressure is higher, air pressure
Force promotes rotating sheet to be bent to burst disk side on rotating sheet, and when rotating sheet is bent, since burst disk is thin aluminium
Piece, and in burst disk among be carved with the line of weakness of "U" font, in the case that inside battery air pressure is higher, burst disk along
Line of weakness tears rupture, and air pressure washes upwardly the indentation of burst disk open, and indentation face along indentation face with burst disk with being connected to
Side together is flipped up, and is electrically connected in this way, rotating sheet can be overturn to outside and coping plate through explosion-proof film perforation so that just
Anode electrically connects short circuit, avoids the further damage of battery, effective protective effect is played to battery.The lithium ion of the utility model
Top cover structure of power battery, simple in structure, cost is low, when inside battery air pressure increases, can effectively ensure the quarter of burst disk
Trace face can rupture opening so that inside battery air pressure is drained in time, prevents battery explosion, while cause the opening on rupture disk
Rotating sheet can be made to pass through explosionproof hole, overturn to outside and coping plate and electrically connect, electrically connect positive and negative anodes, realized short outside battery
Road, avoids overcharging and battery is further damaged, improve the security performance of lithium ion battery.
The burst disk 3 is structure made of flake aluminum, is indentation face 18 among line of weakness 7, rotating sheet 6 is in high pressure gas
When under body effect to close to the upset of 1 direction of coping plate, 6 front end of rotating sheet is configured to the knot for promoting indentation face 18 to open upwards
Structure.Said structure, line of weakness realize being reliably connected for indentation face and burst disk when inside battery air pressure is not high, and in battery
When air pressure inside is excessive, then under rotating sheet thrust, line of weakness tear, opens opening, explosionproof hole is passed through easy to rotating sheet, overturn
Electrically connected to outside and coping plate, electrically connect positive and negative anodes.
Sealing ring I 8 is set with the battery negative column 4, sealing ring II 9, battery negative column 4 are set with battery positive pole 5
Plastic cement 10 is riveted with anode riveting aluminium block 11 on through anode, and battery positive pole 5 rivets aluminium through positive electrode resistance piece 12 and cathode
Block 13 rivets, and plastic cement 14 under cathode is set between coping plate 1 and battery positive pole 5, is set between coping plate 1 and battery negative column 4
Put plastic cement 15 under anode.Said structure, 5 upper end of battery positive pole is cased with sealing ring II 9,4 upper end of battery negative column is cased with sealing
I 8 are enclosed, battery negative column is riveted through plastic cement on coping plate and the anode on coping plate top and anode riveting aluminium block, is moulded on anode
Glue main function is that negative terminal and coping plate are electrically insulated.And battery positive pole passes through the positive electrode resistance on coping plate and coping plate
Block and cathode riveting aluminium block riveting, positive electrode resistance block are act as positive terminal and coping plate electrical connection so that head cover and power electric
Pond housing all positively chargeds, it is ensured that battery being capable of reliably working.
Explosion-proof valve screening glass 16 is also set up on the coping plate 1 of 3 top position of burst disk, explosion-proof valve screening glass 16 is set
It is set to and is made by polythene material or polypropylene material.Anti- explosion-proof valve screening glass is that the polyethylene of one layer of 0.2-0.5mm is thin
Membrane material or polypropylene film material.
The rotating sheet is arranged to the structure made of matter soft copper material.Said structure, it is ensured that rotating sheet can be in gas
Pressure promotes lower reliable upset, and will not be broken in upset.
The battery positive pole 5 is also cross plastic cement under cathode 14, and the battery negative column 4 is also cross under anode
Plastic cement 15, also sets up liquid injection hole 17 on the coping plate 1.Under cathode under plastic cement 14 and anode plastic cement 15 setting, for will
Coping plate and battery battery core insulation.And the liquid injection hole that explosion-proof film perforation side is set, then it is used to inject electrolyte into battery.
Lithium-ion-power cell cap structure described in the utility model, is equipped with explosion-proof film perforation among coping plate, explosion-proof
Burst disk is welded with coping plate below film perforation.Rotating sheet is fixedly connected with battery negative column or battery positive pole side, and
Support column is then set on coping plate, in this way, when inside battery air pressure is higher, air pressure exerts a force on rotating sheet, promotes rotating sheet
Bent to burst disk side, and when rotating sheet is bent, since burst disk is flake aluminum, and "U" is carved with centre in burst disk
The line of weakness of font, in the case that inside battery air pressure is higher, burst disk tears rupture along line of weakness, and air pressure is by burst disk
Indentation wash open upwardly, indentation face with being flipped up along indentation face and the side that burst disk links together, in this way, upset
Piece can overturn to outside and coping plate through explosion-proof film perforation and electrically connect so that positive and negative anodes electrically connect short circuit, avoid battery into
One step is damaged, and effective protective effect is played to battery.The lithium-ion-power cell cap structure of the utility model, it is simple in structure,
Manufacture cost is low, and when inside battery air pressure increases, can effectively ensure the indentation face of burst disk can rupture opening so that electricity
Pond air pressure inside is drained in time, prevents battery explosion, while allows the opening on rupture disk rotating sheet is passed through explosionproof hole,
Upset is electrically connected to outside and coping plate, is electrically connected positive and negative anodes, is realized battery external short circuit, avoids overcharging and battery is further damaged
It is bad, improve the security performance of lithium ion battery.
Exemplary description is carried out to the utility model above in conjunction with attached drawing, it is clear that the utility model concrete implementation is simultaneously
From the limitation of aforesaid way, if the various improvement that the methodology of the utility model and technical solution carry out are employed, or
It is not improved that the design of the utility model and technical solution are directly applied into other occasions, the protection in the utility model
In the range of.
Claims (5)
- A kind of 1. lithium-ion-power cell cap structure, it is characterised in that：The lithium-ion-power cell cap structure includes Coping plate (1), explosion-proof film perforation (2) is set on coping plate (1), and coping plate (1) position welding of explosion-proof film perforation (2) lower position is anti- Quick-fried (3), coping plate (1) lower section set battery negative column (4) and battery positive pole (5), battery negative column (4) side or battery Positive terminal (5) side sets rotating sheet (6), and rotating sheet (6) front end is configured to extend to the knot of burst disk (3) lower position Structure, the line of weakness (7) in "U" font is set in the burst disk (3), and rotating sheet (6) is arranged to structure made of copper material.
- 2. lithium-ion-power cell cap structure according to claim 1, it is characterised in that：The burst disk (3) is Structure made of flake aluminum, middle line of weakness (7) is indentation face (18), and rotating sheet (6) is under gases at high pressure effect to close to top When cover plate (1) direction is overturn, rotating sheet (6) front end is configured to the structure for promoting indentation face (18) to open upwards.
- 3. lithium-ion-power cell cap structure according to claim 1 or 2, it is characterised in that：The battery negative column (4) sealing ring I (8) is set with, sealing ring II (9) is set with battery positive pole (5), battery negative column (4) passes through moulds on anode Glue (10) is riveted with anode riveting aluminium block (11), and battery positive pole (5) passes through positive electrode resistance piece (12) and cathode riveting aluminium block (13) rivet, plastic cement (14), coping plate (1) and battery negative column under cathode are set between coping plate (1) and battery positive pole (5) (4) plastic cement (15) under anode is set between.
- 4. lithium-ion-power cell cap structure according to claim 1 or 2, it is characterised in that：The burst disk (3) Explosion-proof valve screening glass (16) is also set up on the coping plate (1) of top position, explosion-proof valve screening glass (16) is arranged to by polyethylene material Material or polypropylene material are made.
- 5. lithium-ion-power cell cap structure according to claim 3, it is characterised in that：The battery positive pole (5) plastic cement (14) under cathode is passed through, the battery negative column (4) passes through plastic cement (15) under anode, gone back on the coping plate (1) Liquid injection hole (17) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721252214.3U CN207282544U (en) | 2017-09-27 | 2017-09-27 | A kind of lithium-ion-power cell cap structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721252214.3U CN207282544U (en) | 2017-09-27 | 2017-09-27 | A kind of lithium-ion-power cell cap structure |
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| Publication Number | Publication Date |
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| CN207282544U true CN207282544U (en) | 2018-04-27 |
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| CN201721252214.3U Active CN207282544U (en) | 2017-09-27 | 2017-09-27 | A kind of lithium-ion-power cell cap structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114497877A (en) * | 2022-04-07 | 2022-05-13 | 中创新航科技股份有限公司 | Battery and battery pack |
-
2017
- 2017-09-27 CN CN201721252214.3U patent/CN207282544U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114497877A (en) * | 2022-04-07 | 2022-05-13 | 中创新航科技股份有限公司 | Battery and battery pack |
| CN114497877B (en) * | 2022-04-07 | 2022-07-05 | 中创新航科技股份有限公司 | Battery and battery pack |
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