CN207896135U - Lithium-ion-power cell cap assembly - Google Patents
Lithium-ion-power cell cap assembly Download PDFInfo
- Publication number
- CN207896135U CN207896135U CN201820252737.6U CN201820252737U CN207896135U CN 207896135 U CN207896135 U CN 207896135U CN 201820252737 U CN201820252737 U CN 201820252737U CN 207896135 U CN207896135 U CN 207896135U
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- Prior art keywords
- positive
- coping plate
- lithium
- ion
- negative terminals
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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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a kind of lithium-ion-power cell cap assemblies, including positive terminal, negative terminal and coping plate, the cap assembly further includes the anti-rotation structure for preventing positive and negative terminals from being rotated with coping plate, and the positive and negative terminals are limited by anti-rotation structure with coping plate and connected.The utility model is arranged matched clamping locking mechanism in positive and negative terminals pedestal and coping plate and realizes anti-rotating function, or positive and negative terminals pedestal is set as rectangular or prismatic, matched convex closure is set on head cover, installation is blocked when being assembled using pole, it is dynamic to prevent rotation stop, reach the pole rotation solved the problems, such as under the condition of high temperature and brings.
Description
Technical field
The utility model is related to power battery technology fields, and in particular to a kind of lithium-ion-power cell cap assembly.
Background technology
Electric vehicle and energy-accumulating power station etc., which generally require, uses the power battery with large capacity as power supply.These power
Battery should also have good safety and longer cycle life etc. in addition to high power capacity, can be only achieved and use
Standard and meets the needs of people.
Safety device can increase the security performance of power battery to a certain extent on battery cap in the prior art.But
In actual use, the thermal runaway of inside battery causes battery temperature drastically to increase so that plastic parts melts around battery electrode column, leads
Pole rotation is caused, causes circuit connection unstable, there are security risks, how to overcome problem above, are that we are in the urgent need to address
The technical issues of.
Invention content
The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model carries
For a kind of lithium-ion-power cell cap assembly, it is therefore an objective to high temperature pole be avoided to rotate.
To achieve the goals above, the technical solution that the utility model is taken is：
A kind of lithium-ion-power cell cap assembly, including positive terminal, negative terminal and coping plate, the cap assembly also wrap
The anti-rotation structure for preventing positive and negative terminals from being rotated with coping plate is included, the positive and negative terminals are limited with coping plate by anti-rotation structure
Connection.
The anti-rotation structure includes cylinder, the first card slot on positive and negative terminals pedestal and second on coping plate
Card slot, cylinder pass through the first card slot and the second card slot that positive and negative terminals is made to be locked with coping plate and connect.
The first card slot on the positive and negative terminals pedestal is multiple.
First card slot is three or four, and three the first card slots uses etc. divide triangle arrangement, four the first card slots to adopt
It is arranged with quadrangle.
The anti-rotation structure includes the convex closure being set on coping plate for being clamped positive and negative terminals pedestal.
The pedestal of the positive and negative terminals is rectangular or diamond shape.
The negative terminal passes through coping plate and the upper insulation plate on coping plate top and cathode riveting block riveting, the positive terminal
Positive electrode resistance block on coping plate and coping plate and anode riveting block riveting.
The coping plate is equipped with explosion-proof film perforation, and the bottom of explosion-proof film perforation is equipped with burst disk, and the top of burst disk is equipped with explosion-proof
Valve protection piece.
The coping plate is equipped with liquid injection hole, and the liquid injection hole is set to the side of explosion-proof film perforation.
The beneficial effects of the utility model：Matched clamping is arranged in positive and negative terminals pedestal and coping plate in the utility model
Locking mechanism realizes anti-rotating function, or positive and negative terminals pedestal is set as rectangular or prismatic, is arranged on head cover matched convex
Packet is installed when being assembled using pole and is blocked, dynamic to prevent rotation stop, is reached the pole rotation solved the problems, such as under the condition of high temperature and is brought.
It can protect battery will not be by the safety such as electrochemical corrosion, explosion, short circuit by measures such as explosion-proof valve, resistor disc, rotating sheets
Hidden danger, and at high temperature, battery plus-negative plate column can with safety and firmness work, and stability test is made to greatly improve.
Description of the drawings
The content of every width attached drawing expression in present specification and the label in figure are briefly described below：
Fig. 1 is the explosive view of the utility model embodiment 1；
Fig. 2 is the pole and column structure schematic diagram of embodiment 1；
Fig. 3 is the explosive view of the utility model embodiment 2.
In figure label for：
1, cathode rivets block, and 2, cathode inserts, 3, coping plate, 4, plastic cement under cathode, 5, sealing ring, 6, negative terminal, 7, column
Body, 8, explosion-proof valve protect patch, 9, anode riveting block, 11, positive electrode resistance block, 12, the lower plastic cement of anode, 13, positive terminal, 14, peace
Full holder, 15, burst disk, 16, rotating sheet.
Specific implementation mode
Below against attached drawing, by the description of the embodiment, making to specific embodiment of the present utility model further detailed
Thin explanation, it is therefore an objective to help those skilled in the art to the design of the utility model, technical solution have it is more complete, accurate and
Deep understanding, and contribute to its implementation.
Embodiment 1
As shown in Figure 1 to Figure 2, a kind of lithium-ion-power cell cap assembly, by positive terminal 13, negative terminal 6, coping plate
3 equal compositions, specially 3 both ends of coping plate are respectively equipped with positive and negative electrode post holes, and positive and negative pole upper end is covered there are one sealing ring 5,
Negative terminal passes through plastic cement on the cathode on 3 top of coping plate 3 and coping plate to be riveted with cathode riveting block 1, and cathode riveting block is preferably
Cathode rivets aluminium block, and plastic cement main function is that negative terminal and coping plate are electrically insulated on cathode.Coping plate 3 is equipped with rotating sheet 16,
And rotating sheet 16 is provided close to 6 side of negative terminal, rotating sheet 16 rivets block 1 by being flipped up contact cathode.It can will specifically turn over
Rotor is welded on coping plate, and plastic cement 2 corresponds to 16 position of rotating sheet and offers hole on cathode, for passing through it when rotating sheet overturning
It is contacted with cathode riveting aluminium block, realizes that circuit is connected.When inside battery because overcharging, it is out of control etc. caused by inside battery air pressure increase,
So that rotating sheet is flipped up contact cathode riveting aluminium block, so that coping plate and negative terminal be electrically connected because positive terminal also and
Coping plate electrically connects, so positive and negative anodes is caused to electrically connect, forms battery external short circuit, and the battery effectively prevented overcharges, and
The energy of inside battery can be discharged.Positive terminal 13 passes through coping plate 3 and the positive electrode resistance block 11 on coping plate 3 and anode
It rivets block 9 to rivet, anode riveting block is preferably anode riveting aluminium block, and positive electrode resistance block act as positive terminal and coping plate being electrically connected
It connects so that head cover and housing of power cell are all positively charged.Positive terminal and negative terminal coping plate have the lower modeling of corresponding anode
Plastic parts under glue part and cathode, for coping plate and battery core to insulate.Explosion-proof film perforation, burst disk bottom hole are equipped among coping plate 3
Portion is welded with burst disk 15, is equipped with explosion-proof valve screening glass 8 at the top of explosion-proof film perforation, explosion-proof film perforation is preferably disposed to the middle part of coping plate.
Burst disk air pressure inside is excessively high reach Initiation Pressure when, carry out explosion, air pressure inside is released, battery explosion is prevented.Top
Cover plate is equipped with liquid injection hole, and liquid injection hole is set to the side of explosion-proof film perforation, for injecting electrolyte.It can be arranged in the bottom of coping plate
Emergency support 14 is convenient for security protection.
The lithium-ion-power cell cap assembly further includes the anti-rotation structure for preventing positive and negative terminals from being rotated with coping plate,
Positive and negative terminals are limited by anti-rotation structure with coping plate and are connected.
Anti-rotation structure includes cylinder 7, the first card slot on positive and negative terminals pedestal and the on coping plate second card
Slot, cylinder 7 pass through the first card slot and the second card slot that positive and negative terminals is made to be locked with coping plate 3 and connect.On positive and negative terminals pedestal
One card slot is multiple.Specifically, the first card slot can be three or four, and when the first card slot is three, three first
Card slot use etc. divides triangle arrangement, and when the first card slot is four, four the first card slots are arranged using quadrangle.When specific operation,
It can be equipped with the first card slot on positive and negative terminals pedestal diagonal line, corresponding second card slot, coping plate are offered on coping plate
On the second card slot can be combined with the first card slot of positive and negative terminals, using heat safe cylinder 7 (ceramics) by pole and top
Cover plate locks together, and prevents from rotating, and reaches the pole rotation solved the problems, such as under the condition of high temperature and brings.
Embodiment 2
As shown in figure 3, the present embodiment and embodiment 1 the difference lies in that above-mentioned anti-rotation structure includes being set on coping plate 3
Convex closure for being clamped positive and negative terminals pedestal.The pedestal of positive and negative terminals is rectangular or diamond shape.Positive and negative terminals pedestal is set as rectangular
Or prismatic, matched convex closure is set on coping plate, installs and blocks when being assembled using pole, it is dynamic to prevent rotation stop, reach solution
The problem of pole rotation under the condition of high temperature is brought.
The utility model is exemplarily described above in association with attached drawing.Obviously, the utility model implements not
It is limited by aforesaid way.As long as using the various unsubstantialities of the methodology and technical solution progress of the utility model
Improvement；Or it is not improved, above-mentioned design and technical solution by the utility model directly apply to other occasions, at this
Within the protection domain of utility model.
Claims (8)
1. a kind of lithium-ion-power cell cap assembly, including positive terminal, negative terminal and coping plate, it is characterised in that：The top
Cap assemblies further include the anti-rotation structure for preventing positive and negative terminals from being rotated with coping plate, and the positive and negative terminals pass through anti-with coping plate
Rotation structure limit connection.
2. lithium-ion-power cell cap assembly according to claim 1, it is characterised in that：The anti-rotation structure includes column
Body, the first card slot on positive and negative terminals pedestal and the second card slot on coping plate, cylinder pass through the first card slot and the
Two draw-in groove makes positive and negative terminals lock connection with coping plate.
3. lithium-ion-power cell cap assembly according to claim 2, it is characterised in that：On the positive and negative terminals pedestal
The first card slot be multiple.
4. lithium-ion-power cell cap assembly according to claim 3, it is characterised in that：First card slot is three
Or four, three the first card slots uses etc. divide triangle arrangement, four the first card slots to be arranged using quadrangle.
5. lithium-ion-power cell cap assembly according to claim 1, it is characterised in that：The anti-rotation structure includes setting
In the convex closure for being clamped positive and negative terminals pedestal on coping plate.
6. lithium-ion-power cell cap assembly according to claim 5, it is characterised in that：The pedestal of the positive and negative terminals
For rectangular or diamond shape.
7. lithium-ion-power cell cap assembly according to claim 1, it is characterised in that：The negative terminal passes through head cover
Piece and the upper insulation plate on coping plate top and cathode riveting block riveting, the positive terminal pass through the anode on coping plate and coping plate
Resistance bolck and anode riveting block riveting.
8. lithium-ion-power cell cap assembly according to claim 1, it is characterised in that：The coping plate is equipped with explosion-proof
The bottom of film perforation, explosion-proof film perforation is equipped with burst disk, and the top of burst disk is equipped with explosion-proof valve screening glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820252737.6U CN207896135U (en) | 2018-02-12 | 2018-02-12 | Lithium-ion-power cell cap assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820252737.6U CN207896135U (en) | 2018-02-12 | 2018-02-12 | Lithium-ion-power cell cap assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207896135U true CN207896135U (en) | 2018-09-21 |
Family
ID=63540932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820252737.6U Active CN207896135U (en) | 2018-02-12 | 2018-02-12 | Lithium-ion-power cell cap assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207896135U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111244339A (en) * | 2018-11-29 | 2020-06-05 | 比亚迪股份有限公司 | Battery cover plate and battery with same |
| CN116014366A (en) * | 2023-02-09 | 2023-04-25 | 深圳海润新能源科技有限公司 | End cover assembly, energy storage device and electric equipment |
| CN116014382A (en) * | 2023-02-09 | 2023-04-25 | 深圳海润新能源科技有限公司 | Energy storage device and electric equipment |
-
2018
- 2018-02-12 CN CN201820252737.6U patent/CN207896135U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111244339A (en) * | 2018-11-29 | 2020-06-05 | 比亚迪股份有限公司 | Battery cover plate and battery with same |
| CN111244339B (en) * | 2018-11-29 | 2021-09-21 | 比亚迪股份有限公司 | Battery cover plate and battery with same |
| CN116014366A (en) * | 2023-02-09 | 2023-04-25 | 深圳海润新能源科技有限公司 | End cover assembly, energy storage device and electric equipment |
| CN116014382A (en) * | 2023-02-09 | 2023-04-25 | 深圳海润新能源科技有限公司 | Energy storage device and electric equipment |
| CN116014366B (en) * | 2023-02-09 | 2024-06-11 | 深圳海润新能源科技有限公司 | End cover assembly, energy storage device and electric equipment |
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