CN208835167U - A kind of lithium ion battery closing device - Google Patents
A kind of lithium ion battery closing device Download PDFInfo
- Publication number
- CN208835167U CN208835167U CN201821035834.6U CN201821035834U CN208835167U CN 208835167 U CN208835167 U CN 208835167U CN 201821035834 U CN201821035834 U CN 201821035834U CN 208835167 U CN208835167 U CN 208835167U
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- China
- Prior art keywords
- compressing member
- guide hole
- fixed plate
- fluid injection
- gib block
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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 battery closing devices, comprising: cover board, to formation fluid injection slot and liquid injection port；Enclosuring structure, including fixed plate, compressing member, Packing spring, sealing ring and exhaust button, fixed plate is embedded at fluid injection slot, the first guide hole and the second guide hole are opened up on thereon, first guide hole built in compressing member one end, sealing ring is fixed on compressing member the other end face, and Packing spring one end is connected to fixed plate, the other end and compressing member and connects, and exhaust button is connect with compressing member.An enclosuring structure is arranged in the utility model, sealing ring can be pressed in fluid injection trench bottom under the action of Packing spring sealing liquid injection port by it, and when air pressure is excessive at liquid injection port, air pressure, which generates pressure, may make Packing spring to compress to open liquid injection port, realize the automatic exhaust of liquid injection port, compressing member can be driven to move to fluid injection slot notch to open liquid injection port by the pressing of exhaust button simultaneously, realize initiative exhaust.
Description
Technical field
The utility model relates to technical field of lithium ion, more particularly, to a kind of lithium ion battery closing device.
Background technique
Currently, rubber tack is mostly used to carry out battery seal, i.e. it is close by rubber tack insertion liquid injection port progress to complete mouth for fluid injection
Envelope, and rubber tack is extracted before being melted into and is vented, and then seal rubber tack again insertable into liquid injection port after being melted into, due to repeatedly inserting,
The leakproofness variation for inevitably resulting in rubber tack is pulled out, therefore notification number is the Chinese invention patent (application number of CN103887453B
201210565041.6) a kind of lithium ion battery enclosuring structure is disclosed, note is realized by spring, button and sealing ring cooperation
The pressure type of liquid mouth seals, and the unlatching of liquid injection port can be realized by pressing.
Although aforesaid way is conducive to improve leakproofness, in lithium ion battery use process (such as overshoot, short circuit etc.)
Gas can be generated, when generation gas is excessive, lithium ion battery is easily led to and explodes, and foregoing invention patent then can not be automatic
The excessive gas generated in lithium ion battery is discharged；Although notification number is the Chinese utility model patent (Shen of CN206332061U
Please number 201621283529.X) a kind of electrolyte filling hole structure for improving rectangular lithium ion battery thermal shock test is disclosed, it can be
High temperature automatically opens liquid injection hole in order to the discharge of high pressure gas, however its mode and the basic phase of rubber tack for sealing liquid injection hole
Together, multiple plug and unplug in process of production still will affect its leakproofness.
In view of this, provide a kind of good airproof performance and can self-bleeding lithium ion battery closing device become at this stage urgently
Technical problem to be solved.
Utility model content
The purpose of the utility model is to overcome above-mentioned technical deficiency, a kind of good airproof performance is proposed and can self-bleeding lithium
Ion battery closing device.
To reach above-mentioned technical purpose, the technical solution of the utility model provides a kind of lithium ion battery closing device, packet
It includes:
Cover board is recessed inwardly to form a fluid injection slot, and the fluid injection trench bottom forms a liquid injection port；
Enclosuring structure comprising fixed plate, compressing member, Packing spring, sealing ring and exhaust button, the fixed plate are embedded
First matched with compressing member and exhaust button respectively is offered in the open end of the fluid injection slot, and in the fixed plate to lead
Hole and the second guide hole, described compressing member one end are built in first guide hole and can move up and down along first guide hole, institute
It states sealing ring to be fixed on the compressing member the other end face and the sealing liquid injection port can be cooperated, described Packing spring one end is supported
It is connected to the fixed plate, the other end is connect with the compressing member and generates the bullet for moving the compressing member to fluid injection slot slot bottom
Power, described exhaust button one end pass through second guide hole and are connect with the compressing member to drive the compressing member far from described
Fluid injection slot slot bottom.
Compared with prior art, an enclosuring structure is arranged in the utility model, can will seal under the action of Packing spring
Circle is pressed in fluid injection trench bottom to seal liquid injection port, and when air pressure is excessive at liquid injection port, air pressure generate pressure may make it is close
Envelope spring-compressed realizes the automatic exhaust of liquid injection port to open liquid injection port, while can be driven by the pressing of exhaust button
Compressing member is moved to fluid injection slot notch to open liquid injection port, realizes initiative exhaust.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of the lithium ion battery closing device of the utility model；
Fig. 2 is the structural schematic diagram of the fixed plate of the utility model；
Fig. 3 is the portion the A enlarged drawing of Fig. 1 of the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in Figure 1, the embodiments of the present invention provide a kind of lithium ion battery closing device, the closing device packet
Cover board 10 and enclosuring structure 20 are included, cover board 10 is recessed inwardly to form a fluid injection slot 11, and specially cover board 10 is into lithium ion battery
Portion is recessed to form fluid injection slot 11, can avoid enclosuring structure 20 and too protrudes from cover board 10,11 bottom of fluid injection slot forms one
Liquid injection port 12, the liquid injection port 12 can be used for injecting electrolyte.
As shown in Figure 1 and Figure 2, enclosuring structure 20 includes fixed plate 21, compressing member 22, Packing spring 23, sealing ring 24 and row
Gas button 25, the fixed plate 21 is embedded at the open end of the fluid injection slot 11, settable identical as the shape of fluid injection slot 11,
It is such as round, rectangular, wherein the present embodiment fixed plate 21, fluid injection slot 11 and liquid injection port 12 are provided with circle, and fixed plate 21
Upper side is settable concordant with the lateral wall of cover board 10；Meanwhile offered in the fixed plate 21 respectively with compressing member 22 and row
The the first guide hole 211a and the second guide hole 211b that gas button 25 matches, consequently facilitating compressing member 22 and exhaust button 25 can be distinguished
It moves up and down along the first guide hole 211a and the second guide hole 211b；Described 22 one end of compressing member is built in the first guide hole 211a simultaneously
It can move up and down along the first guide hole 211a, the sealing ring 24 is fixed on 22 the other end face of compressing member and can
Cooperation seals the liquid injection port 12, and described 23 one end of Packing spring is connected to the fixed plate 21, the other end and the compressing member
22 connect and generate the elastic force for moving the compressing member 22 to 11 slot bottom of fluid injection slot, and described 25 one end of exhaust button passes through described
Second guide hole 211b is simultaneously connect with the compressing member 22 to drive the compressing member 22 far from 11 slot bottom of fluid injection slot.It is specific
When effect, 23 one end of Packing spring is connected to fixed plate 21, and the other end is connect with compressing member 22, can produce downward elastic force,
So that the sealing ring 24 for being fixed on 22 lower end surface of compressing member is pressed in the slot bottom of fluid injection slot 11, liquid injection port 12 is sealed；
When the air pressure in lithium ion battery is excessive, the pressure that air pressure generates can drive sealing ring 24 to move upwards so that Packing spring
23 shrink, and then liquid injection port 12 is opened, and in order to the discharge of gas, the air pressure in avoidable lithium ion battery is excessive and sends out
Raw explosion, improves the safety that lithium ion battery uses.Meanwhile in the production phase, can by the pressing of exhaust button 25 with
Driving compressing member 22 moves upwards, and so that sealing ring 24 is detached from 11 bottom of fluid injection slot, liquid injection port 12 is opened, fluid injection is realized
Mouthfuls 12 active unlatching, it is easy to produce during chemical conversion before initiative exhaust.
When being moved for the ease of compressing member 22 along the first guide hole 211a, there is certain stroke, fixed described in the present embodiment
Plate 21 includes fixed plate ontology 211 and the guide part 212 extended to form from the first guide hole 211a inner wall to the liquid injection port 12, institute
It states the cooperation of 22 upper end of compressing member and is built in the guide part 212, which is cylindrical in shape and has certain length, in
The cavity of formation agrees with the first conducting 211a phase, can provide certain stroke for the up and down motion of compressing member 22, while also sharp
In the alignment that sealing element moves up and down.Wherein, when specific setting, the first guide hole 211a is set in fixed plate ontology 211
Portion, and the second guide hole 211b is then close to the edge of fixed plate ontology 211.
As shown in Figure 1, being moved upwards for the ease of driving compressing member 22 when pressing exhaust button 25, pressed described in the present embodiment
Tight part 22 includes compression plate 221 and the first gib block 222, described first gib block, 222 one end be built in the guide part 212,
The other end is connected to 221 middle part of compression plate, and the sealing ring 24 is set to the compression plate 221 far from the first gib block
222 sides, specifically when setting, the first gib block 222 is arranged vertically, and compression plate 221 is vertical with the first gib block 222；Such as figure
1, shown in Fig. 3, the exhaust button 25 includes pressing plate 251, the second gib block 252, drives gear 253 and drive rack 254,
Second gib block 252, driving gear 253 and drive rack 254 equal at least two, and be arranged in a one-to-one correspondence, the drive
Moving gear 253 is set on the side wall of the fluid injection slot 11, specifically can be fixed on 11 side wall of fluid injection slot by a fixing piece 253a,
At least two driving gears 253 are arranged circumferentially along fluid injection slot 11 simultaneously, are conducive to improve the balance of driving compression plate 221
Property；Each described second gib block, 252 one end is connected to 251 outer rim of pressing plate, the other end passes through second guide hole
211b, and 252 other end of the second gib block be provided with the groove that is meshed of driving 253 side of gear, while the
Two gib blocks, 252 other end passes through the engaging hole on fixing piece 253a and is engaged by groove thereon with driving gear 253, institute
It states driving gear 253 to be meshed with 254 other side of drive rack, for the ease of drive rack 254 and the second gib block 252
Driving gear 253 can be vertically arranged by the stability moved synchronously with the second gib block 252.When the pressing pressing plate 251
When, pressing plate 251 drives the first gib block 222 to move downward, and the groove of 222 lower end of the first gib block drives driving gear 253
Rotation, and then drive rack 254 is driven to move upwards, it may make compression plate 221 to move upwards, so that being set to compression plate
The sealing ring 24 of 221 bottoms is detached from 11 bottom of fluid injection slot, and then liquid injection port 12 is opened, and when stopping presses the pressing plate 251
When, the elastic force driving pressing plate 251 that Packing spring 23 generates moves downward, so that the compression of sealing ring 24 is sealed in fluid injection slot 11
Bottom, and then liquid injection port 12 is sealed.Wherein, above-mentioned drive rack 254 is driven to move upwards for the ease of corresponding, this reality
It applies example the second guide hole 211b at least two and is arranged in a one-to-one correspondence with second gib block 252.
As shown in Figure 1 and Figure 2, the second gib block of the present embodiment 252, driving gear 253 and drive rack 254 are preferably set
Four are set to, and aforementioned four second gib block 252, driving gear 253 and drive rack 254 are along the circumferential equal of fluid injection slot 11
Even arrangement, consequently facilitating driving 221 surrounding of compression plate moves upwards simultaneously.
For the ease of the agility of exhaust, at least two exhausts are also provided on fixed plate ontology 211 described in the present embodiment
Hole 211c, each gas vent 211c are arranged between two neighboring second guide hole 211b, in other words, gas vent 211c and second
Guide hole 211b is circumferential successively alternately evenly distributed along fixed plate ontology 211.Since the present embodiment the second guide hole 211b is led with second
Identical to 252 quantity of item, i.e., four, then gas vent 211c is also configured as four.
In order to improve the agreeing with property of the first guide hole 211a and the cooperation of the first gib block 222, also for avoiding 221 phase of compression plate
Fixed plate 21 is rotated, and causes to drive gear 253 and gear 253 is driven to cooperate imprecision, therefore first is led described in the present embodiment
Hole 211a and first gib block 222 are in the cross matched, and the first guide hole 211a and first gib block 222 can also
It is set as other shapes matched, such as rectangle, ellipse.
An enclosuring structure is arranged in the utility model, sealing ring can be pressed in fluid injection slot bottom under the action of Packing spring
To seal liquid injection port, and when air pressure is excessive at liquid injection port, air pressure, which generates pressure, may make Packing spring to compress will infuse in portion
Liquid mouth is opened, and realizes the automatic exhaust of liquid injection port, while compressing member can be driven to fluid injection slot slot by the pressing of exhaust button
Mouth movement realizes initiative exhaust to open liquid injection port.
Specific embodiment of the present utility model described above does not constitute the restriction to scope of protection of the utility model.
Any other various changes and modifications that any technical concept according to the present utility model is made should be included in practical
In novel scope of protection of the claims.
Claims (6)
1. a kind of lithium ion battery closing device characterized by comprising
Cover board is recessed inwardly to form a fluid injection slot, and the fluid injection trench bottom forms a liquid injection port；
Enclosuring structure comprising fixed plate, compressing member, Packing spring, sealing ring and exhaust button, the fixed plate are embedded at institute
State the open end of fluid injection slot, and offered in the fixed plate the first guide hole matched respectively with compressing member and exhaust button and
Second guide hole, described compressing member one end is built in first guide hole and can move up and down along first guide hole, described close
Seal is fixed on the compressing member the other end face and can cooperate the sealing liquid injection port, and described Packing spring one end is connected to
The fixed plate, the other end connect with the compressing member and generate the elastic force for moving the compressing member to fluid injection slot slot bottom, institute
Exhaust button one end is stated across second guide hole and is connect with the compressing member to drive the compressing member far from the fluid injection
Slot slot bottom.
2. lithium ion battery closing device according to claim 1, which is characterized in that the fixed plate includes fixed plate sheet
Body and the guide part extended to form from the first guide hole inner wall to the liquid injection port, the compressing member upper end cooperation are built in described lead
To portion.
3. lithium ion battery closing device according to claim 2, which is characterized in that the compressing member include compression plate and
First gib block, first gib block one end is built in the guide part, the other end is connected in the middle part of the compression plate, described
Sealing ring is set to the compression plate far from the first gib block side；The exhaust button includes pressing plate, the second gib block, drives
Moving gear and drive rack, second gib block, driving gear and drive rack equal at least two, and correspond and set
It sets, the driving gear is set on the side wall of the fluid injection slot, and each second gib block one end is connected to the pressing
Disk outer rim, the other end pass through second guide hole, and the second gib block other end is provided with and the driving gear side
The groove being meshed, the driving gear are meshed with the drive rack other side.
4. lithium ion battery closing device according to claim 3, which is characterized in that second guide hole at least two
And it is arranged in a one-to-one correspondence with second gib block.
5. lithium ion battery closing device according to claim 4, which is characterized in that also opened up on the fixed plate ontology
There are at least two gas vents, each gas vent is arranged between two neighboring second guide hole.
6. lithium ion battery closing device according to claim 5, which is characterized in that first guide hole and described first
Gib block is in the cross matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821035834.6U CN208835167U (en) | 2018-06-29 | 2018-06-29 | A kind of lithium ion battery closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821035834.6U CN208835167U (en) | 2018-06-29 | 2018-06-29 | A kind of lithium ion battery closing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208835167U true CN208835167U (en) | 2019-05-07 |
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ID=66306038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821035834.6U Active CN208835167U (en) | 2018-06-29 | 2018-06-29 | A kind of lithium ion battery closing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208835167U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111768997A (en) * | 2020-06-24 | 2020-10-13 | 上海贝思特电气有限公司 | Key control module and control method |
-
2018
- 2018-06-29 CN CN201821035834.6U patent/CN208835167U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111768997A (en) * | 2020-06-24 | 2020-10-13 | 上海贝思特电气有限公司 | Key control module and control method |
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