CN207800658U - A kind of lithium-ion-power cell head cover - Google Patents
A kind of lithium-ion-power cell head cover Download PDFInfo
- Publication number
- CN207800658U CN207800658U CN201820003567.8U CN201820003567U CN207800658U CN 207800658 U CN207800658 U CN 207800658U CN 201820003567 U CN201820003567 U CN 201820003567U CN 207800658 U CN207800658 U CN 207800658U
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- CN
- China
- Prior art keywords
- pole
- lamina tecti
- explosion
- proof valve
- lithium
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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 lithium-ion-power cell head cover, including the first pole, second pole riveting block, lamina tecti and the second pole, the lamina tecti side is equipped with pole column hole, second pole is arranged with sealing ring and is riveted across pole column hole and the second pole riveting block at the top of lamina tecti, the lamina tecti other end is equipped with the first pole, first pole bottom is equipped with two groups of connecting plates, the connecting plate is fixedly connected with terminal plate, the lamina tecti is located at the first pole bottom position and is equipped with short circuit hole, the short circuit hole is internally provided with rotating sheet, the rotating sheet surrounding is fixedly connected on lamina tecti.A kind of lithium-ion-power cell head cover of the utility model is mounted in overturning film perforation using rotating sheet in i.e. the first pole column hole, it reduces lamina tecti and individually opens up overturning film perforation, optimize processing technology, reduce production cost, greatly strengthen the structural strength of lamina tecti, make lamina tecti Highgrade integration, enhances the security performance of power battery.
Description
Technical field
The utility model is related to a kind of secondary battery devices, in particular relate to a kind of lithium-ion-power cell head cover.
Background technology
Power battery is the power supply in powered tools source.These power batteries are in addition to high power capacity, should also
With good safety and longer cycle life etc., it can be only achieved the standard used and meet the needs of people.
The safety measures such as short-circuiting means, explosion-protection equipment, seal are typically provided on battery cap in the prior art to protect
Card power battery meets safety used in connection with.And the safety devices such as short-circuiting means, explosion-protection equipment need individually in power battery
Start hole etc. on lamina tecti, although the security performance of power battery can be increased to a certain extent, makes power battery
Cap structure bad stability, manufacturing cost increase, and processing technology is complicated, therefore, security performance and manufacturing compatibility
It is not satisfactory.
So it is necessory to provide a kind of novel power battery cap assemblies with safety protection function, to further
Improve the security performance and processing cost, technology controlling and process of power battery.
Invention content
In view of the above-mentioned problems of the prior art, the utility model provides a kind of lithium-ion-power cell head cover, solve
Top cover structure of power battery bad stability, manufacturing cost increase, the problem of processing technology complexity.
To achieve the goals above, the technical solution adopted in the utility model is：
A kind of lithium-ion-power cell head cover, including the first pole, the second pole riveting block, lamina tecti and the second pole,
The lamina tecti side is equipped with pole column hole, second pole be arranged with sealing ring and at the top of pole column hole and lamina tecti the
Two pole riveting blocks rivet, and the lamina tecti other end is equipped with the first pole, and first pole bottom is equipped with two groups of connecting plates,
The connecting plate is fixedly connected with terminal plate, and the lamina tecti is located at the first pole bottom position and is equipped with short circuit hole, the short circuit hole
It is internally provided with rotating sheet, the rotating sheet surrounding is fixedly connected on lamina tecti, and it is convex that short circuit is fixedly connected among the rotating sheet
It rises, liquid injection hole is equipped among the lamina tecti, explosion-proof valve mounting groove is equipped with around the liquid injection hole, is equipped at the top of the liquid injection hole
Explosion-proof valve, the explosion-proof valve bottom are mounted in explosion-proof valve mounting groove, and burst disk, the explosion-proof valve are equipped at the top of the explosion-proof valve
Periphery is fixed on retainer plate in explosion-proof valve mounting groove.
As advanced optimizing for said program, the explosion-proof valve bottom makes retainer plate be slid into along inclined surface with inclined surface
In explosion-proof valve mounting groove.
As advanced optimizing for said program, it is equipped between first pole and connecting plate and terminal plate and lamina tecti
Insulating part.
As advanced optimizing for said program, the bottom both ends of the lamina tecti are equipped with one group of lower insulation plate, described
Lower insulation plate is fixedly connected on lamina tecti bottom.
As advanced optimizing for said program, resistor disc, institute are equipped between the second pole riveting block and lamina tecti
It states on the second pole that resistor disc is sleeved on.
Compared with prior art, a kind of the utility model lithium-ion-power cell head cover has the beneficial effect that：
1, the utility model seals the liquid injection hole using explosion-proof valve after battery liquid-filling, and liquid injection hole and explosion-proof valve are integrated
One, reduces the lamina tecti the number of openings of power battery, reduces processing technology difficulty, reduce production cost, strengthen
The structural strength of lamina tecti.
2, the utility model is mounted in overturning film perforation using rotating sheet in i.e. the first pole column hole, is reduced lamina tecti and is individually opened
If overturning film perforation, processing technology is optimized, production cost is reduced, greatly strengthens the structural strength of lamina tecti so that head cover
Plate Highgrade integration enhances the security performance of power battery.
Description of the drawings
Fig. 1 is a kind of overall structure diagram of lithium-ion-power cell head cover of the utility model.
Fig. 2 is a kind of cross section structure schematic diagram of lithium-ion-power cell head cover of the utility model.
Fig. 3 is a kind of lamina tecti vertical view of lithium-ion-power cell head cover of the utility model.
Fig. 4 is a kind of vertical view of lithium-ion-power cell head cover of the utility model.
Fig. 5 is a kind of the first pole partial enlarged view of lithium-ion-power cell head cover of the utility model.
Fig. 6 is a kind of explosion-proof valve enlarged diagram of lithium-ion-power cell head cover of the utility model.
Fig. 7 is a kind of the second pole enlarged diagram of lithium-ion-power cell head cover of the utility model.
Fig. 8 is the first pole side view and upward view of a kind of lithium-ion-power cell head cover of the utility model.
Fig. 9 is the retainer plate schematic cross-section and upward view of a kind of lithium-ion-power cell head cover of the utility model.
Figure 10 is the explosion-proof valve schematic cross-section and vertical view of a kind of lithium-ion-power cell head cover of the utility model.
Reference numeral is in figure：1, the first pole；11, terminal plate；2, the second pole riveting block；3, lamina tecti；4, explosion-proof
Valve；41, retainer plate；42, burst disk；5, lower insulation plate；6, liquid injection hole；7, the second pole；71, sealing ring；72, resistor disc；8、
Rotating sheet.
Specific implementation mode
To make the objectives, technical solutions and advantages of the present invention clearer, below by embodiment, to this reality
It is further elaborated with novel.However, it should be understood that specific embodiment described herein is only used to explain this reality
With range that is novel, being not intended to limit the utility model.
Referring to Fig. 1-Figure 10,
A kind of lithium-ion-power cell head cover of this preferred embodiment, including the first pole 1, the second pole riveting block 2, top
Cover board 3 and the second pole 7,3 side of the lamina tecti are equipped with pole column hole, and second pole 7 is arranged with sealing ring 71 and passes through
Pole column hole and the second pole riveting block 2 at 3 top of lamina tecti rivet, and are equipped between the second pole riveting block 2 and lamina tecti 3
Resistor disc 72, on the second pole 7 that the resistor disc 72 is sleeved on, 3 other end of the lamina tecti is equipped with the first pole 1, and described the
One pole, 1 bottom is equipped with two groups of connecting plates, and the connecting plate is fixedly connected with terminal plate 11, and the lamina tecti 3 is located at the first pole 1
Bottom position is equipped with short circuit hole, and the short circuit hole is internally provided with rotating sheet 8, and 8 surrounding of the rotating sheet is fixedly connected on lamina tecti 3
On, be fixedly connected among the rotating sheet 8 short-circuit protrusion, first pole 1 and connecting plate and terminal plate 11 and lamina tecti 3 it
Between be equipped with insulating part, liquid injection hole 6 is equipped among the lamina tecti 3, explosion-proof valve mounting groove is equipped with around the liquid injection hole 6, it is described
6 top of liquid injection hole is equipped with explosion-proof valve 4, and 4 bottom of the explosion-proof valve is mounted in explosion-proof valve mounting groove, and 4 top of the explosion-proof valve is set
There are burst disk 42,4 periphery retainer plate 41 of the explosion-proof valve to be fixed in explosion-proof valve mounting groove, 4 bottom of the explosion-proof valve carries
Inclined surface makes retainer plate 41 be slid into explosion-proof valve mounting groove along inclined surface.The bottom both ends of the lamina tecti 3 are equipped under one group
Insulation board 5, the lower insulation plate 5 are fixedly connected on 3 bottom of lamina tecti.
A kind of lithium-ion-power cell head cover of the utility model, is equipped with two groups of poles, and the second pole passes through the pole of side
Post holes is riveted with the second pole riveting block, while sealing ring insulated enclosure, the second pole riveting are used between the second pole and lamina tecti
It is connected by resistor disc circuit between briquetting and lamina tecti, liquid injection hole is equipped among lamina tecti, liquid injection hole periphery is equipped with explosion-proof
Valve mounting groove, is equipped with explosion-proof valve in mounting groove, and explosion-proof valve bottom keeps retainer plate explosion-proof along inclined surface slide-in with inclined surface
In valve mounting groove, explosion-proof valve inclined surface carries guiding role, installs convenient and efficient, while inclined surface is extruded in by retainer plate
In explosion-proof valve mounting groove, play the role of the fixed explosion-proof valve of retainer plate sealing so that explosion-proof valve seals up liquid injection hole, and utilization is explosion-proof
Valve seals the liquid injection hole after battery liquid-filling, and liquid injection hole and explosion-proof valve is integrated, reduces the lamina tecti of power battery
The number of openings reduces processing technology difficulty, reduces production cost, strengthens the structural strength of lamina tecti.In the first pole
Short circuit hole i.e. pole column hole is offered in the top plate of bottom, rotating sheet is installed inside it so that rotating sheet and lamina tecti electricity
Road connects, and short-circuit protrusion is fixedly connected among the rotating sheet, and circuit connects the first pole, the first pole peace when for overturning
First main body is downwardly into out of lamina tecti pole slot when dress, terminal plate is being fixedly connected with from bottom, the first pole is fixed
On lamina tecti, it is equipped with insulating sealing materials between the first pole and lamina tecti, completely cuts off its mutual short circuit.Work as power battery
Rotating sheet is flipped up when air pressure inside increases, and short-circuit protrusion is made to be connect with the first pole circuit, thus by lamina tecti and lid group
Part circuit connects so that the first pole and the short circuit of the second pole, to protect electrical core of power battery.It is mounted on overturning using rotating sheet
In film perforation in i.e. the first pole column hole, reduces lamina tecti and individually open up overturning film perforation, optimize processing technology, reduce and be produced into
This, greatly strengthens the structural strength of lamina tecti so that lamina tecti Highgrade integration enhances the security performance of power battery.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Any modification, equivalent replacement or improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (5)
1. a kind of lithium-ion-power cell head cover, including the first pole (1), the second pole riveting block (2), lamina tecti (3) and
Two poles (7), it is characterised in that:Lamina tecti (3) side is equipped with pole column hole, and second pole (7) is arranged with sealing ring
(71) and across pole column hole and the second pole riveting block (2) at the top of lamina tecti (3) it rivets, lamina tecti (3) other end is set
There are the first pole (1), the first pole (1) bottom to be equipped with two groups of connecting plates, the connecting plate is fixedly connected with terminal plate (11),
The lamina tecti (3) is located at the first pole (1) bottom position and is equipped with short circuit hole, and the short circuit hole is internally provided with rotating sheet (8), institute
It states rotating sheet (8) surrounding to be fixedly connected on lamina tecti (3), short-circuit protrusion, the top is fixedly connected among the rotating sheet (8)
It is equipped with liquid injection hole (6) among cover board (3), explosion-proof valve mounting groove, liquid injection hole (6) top are equipped with around the liquid injection hole (6)
Equipped with explosion-proof valve (4), explosion-proof valve (4) bottom is mounted in explosion-proof valve mounting groove, is equipped at the top of the explosion-proof valve (4) explosion-proof
Piece (42), explosion-proof valve (4) periphery are fixed on retainer plate (41) in explosion-proof valve mounting groove.
2. a kind of lithium-ion-power cell head cover according to claim 1, it is characterised in that：Explosion-proof valve (4) bottom
Retainer plate (41) is set to be slid into explosion-proof valve mounting groove along inclined surface with inclined surface.
3. a kind of lithium-ion-power cell head cover according to claim 1, it is characterised in that：First pole (1) and
Insulating part is equipped between connecting plate and terminal plate (11) and lamina tecti (3).
4. a kind of lithium-ion-power cell head cover according to claim 1, it is characterised in that：The bottom of the lamina tecti (3)
Portion both ends are equipped with one group of lower insulation plate (5), and the lower insulation plate (5) is fixedly connected on lamina tecti (3) bottom.
5. a kind of lithium-ion-power cell head cover according to claim 1, it is characterised in that：The second pole riveting block
(2) equipped with resistor disc (72) between lamina tecti (3), on the second pole (7) that the resistor disc (72) is sleeved on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820003567.8U CN207800658U (en) | 2018-01-02 | 2018-01-02 | A kind of lithium-ion-power cell head cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820003567.8U CN207800658U (en) | 2018-01-02 | 2018-01-02 | A kind of lithium-ion-power cell head cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207800658U true CN207800658U (en) | 2018-08-31 |
Family
ID=63278343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820003567.8U Expired - Fee Related CN207800658U (en) | 2018-01-02 | 2018-01-02 | A kind of lithium-ion-power cell head cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207800658U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020133661A1 (en) * | 2018-12-29 | 2020-07-02 | 宁德时代新能源科技股份有限公司 | Secondary battery and battery module |
-
2018
- 2018-01-02 CN CN201820003567.8U patent/CN207800658U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020133661A1 (en) * | 2018-12-29 | 2020-07-02 | 宁德时代新能源科技股份有限公司 | Secondary battery and battery module |
| US11476526B2 (en) | 2018-12-29 | 2022-10-18 | Contemporary Amperex Technology Co., Limited | Secondary battery, battery module and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180831 Termination date: 20190102 |