CN207517744U - A kind of battery cap - Google Patents
A kind of battery cap Download PDFInfo
- Publication number
- CN207517744U CN207517744U CN201721407310.0U CN201721407310U CN207517744U CN 207517744 U CN207517744 U CN 207517744U CN 201721407310 U CN201721407310 U CN 201721407310U CN 207517744 U CN207517744 U CN 207517744U
- Authority
- CN
- China
- Prior art keywords
- top cap
- sleeve
- bursting diaphragm
- conductive plate
- enclosure space
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
Landscapes
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model discloses a kind of battery cap, the bursting diaphragm including hollow sleeve, the top cap at sealing sleeve both ends and conductive plate and between top cap and conductive plate；Sleeve offers gas pressure relief slot between top cap and bursting diaphragm；Top cap is equipped with the first relief hole, and conductive plate is equipped with the second relief hole；Bursting diaphragm is closely slidably matched with sleeve and forms the first enclosure space and the second enclosure space, and gas pressure relief slot is set in the first enclosure space with top cap and conductive plate interval；Bursting diaphragm is equipped with connecting portion, and one end of connecting portion and top cap are unidirectionally slidably matched the other end against conductive plate；The position of gas pressure relief slot is moved to so that the air in second enclosure space to be discharged by the first relief hole along the inner wall of sleeve under the effect of bursting diaphragm energy air pressure, and compared with prior art, the beneficial effects of the utility model are：Bursting diaphragm just can realize the function to battery runs down pressure release by movement, simple in structure effective, and can effectively improve sealing performance equipped with gasket.
Description
【Technical field】
The utility model is related to battery technology fields, are specifically related to a kind of battery cap.
【Background technology】
As constantly consuming for non-renewable resources is increasingly prominent with environmental problem, new energy battery develops in recent years
It is very rapid.Cylindrical battery is usually made of housing, battery core and battery cap, and the one end open of housing simultaneously is used to encapsulate electricity
Core, the opening of battery cap closing housing are simultaneously electrically connected with battery core using the anode as battery.However, battery is being abnormal
When can generate a large amount of gas and high current so that the internal pressure of battery steeply rises, cause the safety that battery has explosion hidden
Suffer from, and high current can badly damaged battery core cause battery core is scrapped completely to cause greatly to waste.
In consideration of it, it is really necessary to provide a kind of novel battery cap with overcome the deficiencies in the prior art.
【Utility model content】
The purpose of this utility model is to provide a kind of battery cap, good seal performance, and has power-off pressure-relief explosion-proof structure, has
The security performance of effect enhancing battery.
To achieve these goals, the utility model provides a kind of battery cap, including hollow and both ends open sleeve,
Close the top cap at the sleeve both ends and conductive plate and anti-in the sleeve and between the top cap and conductive plate
Plate bursting；The inner wall of the sleeve offers gas pressure relief slot between the top cap and the bursting diaphragm；The top cap offers several
First relief hole, the conductive plate offer several second relief holes；The inner wall of the bursting diaphragm and the sleeve closely slides
The first enclosure space and the second enclosure space are formed at the inside interval of the sleeve with the top cap and conductive plate with merging, and
The gas pressure relief slot is set in first enclosure space；The bursting diaphragm is set there are one connecting portion, one end of the connecting portion with
The top cap can be resisted against to the other end is slided close to the direction of the top cap on the conductive plate with merging；The bursting diaphragm
The inner wall of sleeve described in lower edge can be acted on to the first enclosure space direction in the air pressure in second enclosure space
It is mobile, and in the gas pressure relief slot, first enclosure space is made to pass through the gas pressure relief slot with second enclosure space and is connected
It is logical, the air in second enclosure space is discharged by first relief hole.
As a kind of improvement of the utility model battery cap, the connecting portion is set on the center of the bursting diaphragm and direction
One end periphery of the sleeve is equipped with several card slots, and each card slot is gradually distance from described explosion-proof from opening to the direction of bottom
Plate；The side center of the top cap towards the bursting diaphragm is set there are one sliding slot corresponding with the connecting portion, the sliding slot
Inner wall is equipped with several shrapnels that can coordinate with the card slot, passes through the shrapnel and the cooperation bursting diaphragm of the card slot
It is only capable of moving to close to the direction of the top cap.
As a kind of improvement of the utility model battery cap, it is equipped between the connecting portion and the top cap and is located at sliding slot
An interior spring.
As a kind of improvement of the utility model battery cap, side of the top cap far from the bursting diaphragm convexes to form
Conductive part, several first relief holes are located at the both sides of the conductive part respectively.
As a kind of improvement of the utility model battery cap, the sleeve is offered close to one end inner wall of the top cap
Mounting groove, the edge of the top cap and the bottom of the mounting groove are welded and fixed.
As a kind of improvement of the utility model battery cap, the top cap is close to the side of the bursting diaphragm covered with one
Layer gasket, and the gasket is run through by several first relief holes.
As a kind of improvement of the utility model battery cap, the sleeve is close to one end of the conductive plate to the set
The spacing ring that cylinder internal projection formation is connected with the conductive plate.
As a kind of improvement of the utility model battery cap, the conductive plate is towards the side convex shaped of the bursting diaphragm
Into the pressure release portion across the spacing ring, and one end center projections of the pressure release portion far from the conductive plate form one can be with
The jacking block that the connecting portion is connected；Several second relief holes are through the pressure release portion and positioned at the two of the jacking block
Side.
As a kind of improvement of the utility model battery cap, the jacking block is hemispherical, and the connecting portion is close to described
One end of conductive plate, which is equipped with to match with the jacking block, merges hemispherical mating surface.
As a kind of improvement of the utility model battery cap, the second relief hole flare, and described second lets out
Internal diameter of the hole close to one end of the bursting diaphragm is pressed to be more than the internal diameter of the other end.
Compared with prior art, the advantageous effect of battery cap provided by the utility model is：Bursting diaphragm passes through movement
Just the function to battery runs down pressure release can be realized, it is simple in structure effective, and can effectively improve sealing performance equipped with gasket.
【Description of the drawings】
Fig. 1 is the sectional view of the utility model battery cap；
Fig. 2 is the enlarged drawing of a-quadrant shown in Fig. 1.
【Specific embodiment】
It is clear in order to be more clear the purpose of this utility model, technical solution and advantageous effects, below in conjunction with attached
Figure and specific embodiment, the present invention is further described in detail.It should be understood that described in this specification
Specific embodiment is not intended to limit the utility model just for the sake of explaining the utility model.
It please refers to Fig.1 and Fig. 2, a kind of battery cap 100 provided by the utility model, for closing battery (not shown)
One end and as the anode of battery.The battery cap 100 includes hollow and both ends open sleeve 10, the closing sleeve 10
The top cap 20 and conductive plate 30 at both ends and in the sleeve 10 and explosion-proof between the top cap 20 and conductive plate 30
Plate 40.In the present embodiment, the battery is cylinder, the battery cap substantially cylindrical.
Specifically, the sleeve 10 is offered between the top cap 20 and the bursting diaphragm 40 and is let out for cylindrical and inner wall
Indent 101；The top cap 20 is circle and offers several first relief holes 201, and the conductive plate 30 is circle and offers
Several second relief holes 301；The bursting diaphragm 40 for it is round and be closely slidably matched with the inner wall of the sleeve 10 and with it is described
Top cap 20 and conductive plate 30 form the first enclosure space 102 and the second enclosure space 103 at the inside interval of the sleeve 10, and
The gas pressure relief slot 101 is set in first enclosure space 102；The bursting diaphragm 40 is set there are one connecting portion 401, the connection
The one end in portion 401 coordinates with the top cap 20 and can be resisted against the conduction to the other end is slided close to the direction of the top cap 20
On plate 30；The bursting diaphragm 40 can be acted on described in lower edge in the air pressure in second enclosure space 103 in sleeve 10
Wall is moved to 102 direction of the first enclosure space, and in the gas pressure relief slot 101, makes first enclosure space 102
It is connected with second enclosure space 103 by the gas pressure relief slot 101, the air in second enclosure space 103 is led to
First relief hole 201 is crossed to discharge.
In the present embodiment, first relief hole 201 connects first enclosure space 102 with outside, described
Second relief hole 301 connects second enclosure space 103 with the inside of battery, will be generated when battery generates exception a large amount of
Gas, the gas enters in second enclosure space 103 through second relief hole 301 and increases second envelope
Close the air pressure in space 103 so that the bursting diaphragm 40 moves through the gas pressure relief slot 101, and described first closing is empty
Between 102 connected with the second enclosure space 103, so as to the gas that battery generates extremely can pass through successively second relief hole 301,
Second enclosure space 103, the gas pressure relief slot 101, first enclosure space 102 and first relief hole 201 are rapid
Outside is discharged into reduce the internal pressure of battery, and then the safety accident that battery is avoided to explode due to pressure is excessive.It needs
Illustrate, the connecting portion 401 also plays the electrical connection conductive plate 30 and the top cap 20, the connecting portion 401
The metal materials such as copper or aluminium alloy with good conductivity is used to be made to ensure the reliability of electrical connection, and the connecting portion 401
The inner wall of sleeve 10 described in air pressure effect lower edge of the bursting diaphragm 40 in second enclosure space 103 is followed to move
It is detached with the conductive plate 30 so as to cut off being electrically connected between the battery cap 100 and the battery, to avoid different when dynamic
The high current damage other equipment or battery that normal battery generates.
Further, the connecting portion 401 is set on the center of the bursting diaphragm 40 and towards outside one end of the sleeve 10
Week is equipped with several card slots 4011, and each card slot 4011 is gradually distance from the bursting diaphragm 40 from opening to the direction of bottom.Institute
The side center for stating top cap 20 towards the bursting diaphragm 40 set there are one with the 401 corresponding sliding slot 202 of connecting portion, the cunning
The inner wall of slot 202 is equipped with several shrapnels 2021 that can coordinate with the card slot 4011, passes through the shrapnel 2021 and the card slot
4011 cooperation is so that the bursting diaphragm 40 is only capable of moving to close to the direction of the top cap 20.In the present embodiment, it is described
Shrapnel 2021 uses the good plastics of elasticity to be made to reduce cost.In addition, it is set between the connecting portion 401 and the top cap 20
There are one the spring 50 being located in sliding slot, the tension of the spring 50 causes the connecting portion 401 close to the conductive plate 30
One end is resisted against on the conductive plate 30 to ensure the reliability of electrical connection.
Further, side of the top cap 20 far from the bursting diaphragm 40 convexes to form conductive part 203, the conductive part
203 are used for being electrically connected using the anode connection terminal as corresponding battery with other parts or equipment.Preferably, the sleeve 10 is close
Mounting groove 104 is offered on the inside of one end of the top cap 20, the edge of the top cap 20 and the bottom of the mounting groove 104 are welded
Fixation is connect, the top cap 20 is fixed on to one end of the sleeve 10 by the mounting groove 104, it is simple and strong in structure, it is conducive to
Reduce cost.In addition, the top cap 20 close to the side of the bursting diaphragm 40 covered with one layer of gasket 204, the gasket
204 increase the sealing performance of the top cap 20 to prevent the solution leakage of battery.In the present embodiment, described several first
For relief hole 201 respectively positioned at the both sides of the conductive part 203 and through the gasket 204, the top cap 20 uses nickel-clad iron
It is made, nickel-clad iron has the characteristics that anti-oxidant, anticorrosive and stable conductivity, and the intensity of nickel-clad iron is larger, is unlikely to deform, energy
Effectively improve the shock resistance of the battery cap 100.
Further, the sleeve 10 is formed and 30 phase of conductive plate close to one end inner bulge of the conductive plate 30
Spacing ring 105 even, the conductive plate 30 are resisted against the outside of the spacing ring 105 and in the sides towards the bursting diaphragm 40
It convexes to form across the pressure release portion 302 of the spacing ring 105, one end center of the pressure release portion 302 far from the conductive plate 30
A jacking block 3021 that can be connected with the connecting portion 401 is convexed to form, several second relief holes 301 are through described
Pressure release portion 302 and the both sides for being located at the jacking block 3021.In the present embodiment, the jacking block 3021 is hemispherical, the company
Socket part 401, which is equipped with to match with the jacking block 3021 close to one end of the conductive plate 30, merges hemispherical mating surface 4012, from
And the connecting portion 401 can be effectively improved against the stability of the jacking block 3021, and the connecting portion 401 and institute can also be increased
The contact area of jacking block 3021 is stated to improve the stability of electrical connection；Second relief hole, 301 flare, and described
Internal diameter of two relief holes 301 close to one end of the bursting diaphragm 40 is more than the internal diameter of the other end, the gas generated extremely so as to battery
Physical efficiency is rapidly entered from second relief hole 301 in second enclosure space 103.
The utility model is not restricted to described in specification and embodiment, therefore for the personnel of familiar field
For other advantage and modification is easily implemented, therefore in the universal limited without departing substantially from claim and equivalency range
Spirit and scope in the case of, the utility model is not limited to specific details, representative equipment and shown here as with retouching
The diagram example stated.
Claims (10)
1. a kind of battery cap, including hollow and both ends open sleeve, the top cap at the closing sleeve both ends and conductive plate and
Bursting diaphragm in the sleeve and between the top cap and conductive plate；It is characterized in that：The inner wall of the sleeve exists
Gas pressure relief slot is offered between the top cap and the bursting diaphragm；The top cap offers several first relief holes, the conductive plate
Offer several second relief holes；The inner wall of the bursting diaphragm and the sleeve be closely slidably matched and with the top cap and conduction
Plate forms the first enclosure space and the second enclosure space at the inside interval of the sleeve, and the gas pressure relief slot is set on described first
In enclosure space；The bursting diaphragm is set there are one connecting portion, one end of the connecting portion match with the top cap merge can to by
It slides the other end and is resisted against on the conductive plate in the direction of the nearly top cap；The bursting diaphragm can be in second enclosure space
Air pressure effect lower edge described in the inner wall of sleeve move to the first enclosure space direction, and be located at the gas pressure relief slot
In, first enclosure space is made to pass through the gas pressure relief slot with second enclosure space and is connected, the described second closing is empty
Between in air discharged by first relief hole.
2. battery cap according to claim 1, it is characterised in that：The connecting portion be set on the bursting diaphragm center and
Several card slots are equipped with towards one end periphery of the sleeve, each card slot is gradually distance from described from opening to the direction of bottom
Bursting diaphragm；The side center of the top cap towards the bursting diaphragm is set there are one sliding slot corresponding with the connecting portion, the cunning
The inner wall of slot is equipped with several shrapnels that can coordinate with the card slot, described anti-by the cooperation of the shrapnel and the card slot
Plate bursting is only capable of moving to close to the direction of the top cap.
3. battery cap according to claim 2, it is characterised in that：It is equipped with and is located between the connecting portion and the top cap
A spring in sliding slot.
4. battery cap according to claim 1, it is characterised in that：Side protrusion of the top cap far from the bursting diaphragm
Conductive part is formed, several first relief holes are located at the both sides of the conductive part respectively.
5. battery cap according to claim 4, it is characterised in that：The sleeve is opened close to one end inner wall of the top cap
Equipped with mounting groove, the edge of the top cap and the bottom of the mounting groove are welded and fixed.
6. battery cap according to claim 5, it is characterised in that：The top cap is covered close to the side of the bursting diaphragm
There is one layer of gasket, and the gasket is run through by several first relief holes.
7. battery cap according to claim 1, it is characterised in that：The sleeve is close to one end of the conductive plate to institute
State the spacing ring that the formation of sleeve internal projection is connected with the conductive plate.
8. battery cap according to claim 7, it is characterised in that：The side of the conductive plate towards the bursting diaphragm is convex
It rises and is formed across the pressure release portion of the spacing ring, and one end center projections of the pressure release portion far from the conductive plate form one
The jacking block that can be connected with the connecting portion；Several second relief holes are through the pressure release portion and positioned at the jacking block
Both sides.
9. battery cap according to claim 8, it is characterised in that：The jacking block is hemispherical, and the connecting portion is close
One end of the conductive plate, which is equipped with to match with the jacking block, merges hemispherical mating surface.
10. battery cap according to claim 8, it is characterised in that：The second relief hole flare, and described
Internal diameter of two relief holes close to one end of the bursting diaphragm is more than the internal diameter of the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721407310.0U CN207517744U (en) | 2017-10-27 | 2017-10-27 | A kind of battery cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721407310.0U CN207517744U (en) | 2017-10-27 | 2017-10-27 | A kind of battery cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207517744U true CN207517744U (en) | 2018-06-19 |
Family
ID=62535190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721407310.0U Expired - Fee Related CN207517744U (en) | 2017-10-27 | 2017-10-27 | A kind of battery cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207517744U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113906625A (en) * | 2021-03-22 | 2022-01-07 | 宁德新能源科技有限公司 | Battery cell and power utilization device |
-
2017
- 2017-10-27 CN CN201721407310.0U patent/CN207517744U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113906625A (en) * | 2021-03-22 | 2022-01-07 | 宁德新能源科技有限公司 | Battery cell and power utilization device |
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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: 20180619 Termination date: 20181027 |