CN208478457U - The overvoltage protection structure of rotating sheet - Google Patents
The overvoltage protection structure of rotating sheet Download PDFInfo
- Publication number
- CN208478457U CN208478457U CN201821267263.9U CN201821267263U CN208478457U CN 208478457 U CN208478457 U CN 208478457U CN 201821267263 U CN201821267263 U CN 201821267263U CN 208478457 U CN208478457 U CN 208478457U
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- Prior art keywords
- ring cylinder
- rotating sheet
- turning part
- end surface
- top end
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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 relates to the technical fields of battery; disclose the overvoltage protection structure of rotating sheet; turning part including stress overturning and the ring cylinder in the middle part of turning part; ring cylinder extends upward to be longitudinally arranged; ring cylinder has the top end surface away from turning part, and the top end surface of ring cylinder is covered with protection composite layer；Rotating sheet is installed on the coping plate of battery; when the pressure of inside battery is excessive; pressure acts in turning part; turning part is overturn upward; ring cylinder is driven to be moved upwardly by; ring cylinder is connected on the conductive sheet on coping plate; make short-circuit between the positive electrode and negative electrode of coping plate; prevent internal pressure from continuing to rise; also, the compound necessary place of electric current being placed on after short circuit is protected, protection composite layer reduces immediate current of the ring cylinder after overturning; avoid immediate current it is excessive and burn or fusing rotating sheet, effectively protect rotating sheet.
Description
Technical field
The utility model relates to the overvoltage protection structures of the technical field of battery, especially rotating sheet.
Background technique
Currently, with increasingly miniaturization, lighting and the Portable belt of electronic product, such as video camera, notebook and hand
Machine etc., the driving power of these electronic products also develop towards high capacity, high security and the direction of lighting, and battery is with it
The good characteristics such as high capacity, are widely used in electronic product.
Power storage element of the battery core as battery, battery when in use, are understood because of factors such as chargers, and in battery
Portion's chemical reaction, enclosure interior can generate abnormal gas, cause the enclosure interior pressure of battery excessive, if the inside of shell is pressed
Continuous increase is insisted on, then battery explosion accident can occur, gently then damages electronic product, it is heavy then injure user.
In the prior art, when the internal pressure of battery is excessive, battery explosion, needs in the shell by battery in order to prevent
Pressure leak, the direct explosion of battery in order to prevent is provided with rotating sheet in the coping plate of battery cap, when the inside of battery
When pressure is more than certain value, rotating sheet can then be overturn upward, so that short-circuit between the positive electrode and negative electrode of battery, battery stops work
Make, so that the internal pressure of battery will not be with increase.
But the ring cylinder of rotating sheet, when overturning makes battery short circuit, the huge current flow that moment generates is easy to burn or melt
Disconnected rotating sheet, thus rotating sheet is caused to fail, it can not work normally, the electric current of inside battery may also can continue to increase, and occur
Peril.
Utility model content
The utility model proposes rotating sheet overvoltage protection structure, it is intended to solve in the prior art rotating sheet after overturning
It is easy the problem of burning or fusing.
The utility model is realized in this way the overvoltage protection structure of rotating sheet, turning part including stress overturning and
Ring cylinder in the middle part of turning part, the ring cylinder extends upward to be longitudinally arranged, and the ring cylinder, which has, deviates from the overturning
The top end surface in portion, and the top end surface of the ring cylinder is covered with protection composite layer.
Further, the flat arrangement of the top end surface of the ring cylinder.
Further, the protection composite layer is covered with the top end surface of turning part.
Further, the top end surface of the ring cylinder is arranged in a ring, and the centre of the top end surface of the ring cylinder
Surround the central channel being formed with towards lower recess.
Further, the middle part of the protection composite layer is to lower recess, and covers the side wall and bottom wall of the central channel.
Further, the periphery of the protection composite layer extends downward, and covers the side of the ring cylinder.
Further, the protection composite layer is fixed in conjunction with the ring cylinder.
Further, turning part horizontal plane in bending arrange, and it is described protect composite layer do not contact described in turn over
Transfer part.
Further, the periphery of turning part is formed with the interconnecting piece being circular layout.
Compared with prior art, the overvoltage protection structure of rotating sheet provided by the utility model, rotating sheet are to be installed in electricity
On the coping plate in pond, when the pressure of inside battery is excessive, pressure is acted in turning part, and turning part is overturn upward, is driven
Ring cylinder is moved upwardly by, and ring cylinder is connected on coping plate on the conductive sheet of side, is made short between the positive electrode and negative electrode of coping plate
Road stops the work of battery, prevents internal pressure from continuing to rise, also, in the top end surface that ring cylinder is contacted with conductive sheet
It is covered with protection composite layer, protects the compound necessary place of electric current being placed on after short circuit, protection composite layer is overturning ring cylinder
Rear immediate current reduces, and then it is excessive and burn or fusing rotating sheet to avoid immediate current, effectively protects rotating sheet,
Enable rotating sheet steady operation；Certainly, the reduction of short circuit current also can protect the structure fusing of positive electrode and negative electrode simultaneously；Solution
Rotating sheet in the prior art of having determined is easy the problem of burning or fusing after overturning.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the overvoltage protection structure for the rotating sheet that the utility model embodiment 1 provides；
Fig. 2 is the schematic diagram of the section structure of the overvoltage protection structure for the rotating sheet that the utility model embodiment 1 provides；
Fig. 3 is the schematic diagram of the section structure of the overvoltage protection structure for the rotating sheet that the utility model embodiment 2 provides；
Fig. 4 is the schematic diagram of the section structure of the overvoltage protection structure for the rotating sheet that the utility model embodiment 3 provides.
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.
The realization of the utility model is described in detail below in conjunction with specific embodiment.
The same or similar label correspond to the same or similar components in the attached drawing of the present embodiment；In retouching for the utility model
In stating, it is to be understood that if the orientation or positional relationship for having the instructions such as term " on ", "lower", "left", "right" is based on attached drawing
Shown in orientation or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion institute
The device or element of finger must have a particular orientation, be constructed and operated in a specific orientation, therefore position pass is described in attached drawing
The term of system only for illustration, should not be understood as the limitation to this patent, for those of ordinary skill in the art and
Speech, can understand the concrete meaning of above-mentioned term as the case may be.
It referring to figs. 1 to 4, is preferred embodiment provided by the utility model.
The overvoltage protection structure of rotating sheet provided by the utility model, is installed on the coping plate of battery, in inside battery
Pressure it is excessive when, rotating sheet overturning makes anode and cathode short circuit, prevents the electric current for flowing through rotating sheet excessive and burns or molten
Disconnected rotating sheet, guarantees the steady operation performance of rotating sheet.
The overvoltage protection structure for the rotating sheet that the present embodiment 1 provides, turning part 12 including stress overturning and positioned at turning over
The ring cylinder 11 at 12 middle part of transfer part, ring cylinder 11 extends upward to be longitudinally arranged, and ring cylinder 11 has away from the top of turning part 12
End face, and the top end surface of ring cylinder 11 is covered with protection composite layer 13.
Rotating sheet is installed on the coping plate of battery, and when the pressure of inside battery is excessive, pressure acts on overturning
In portion 12, turning part 12 is overturn upward, drives ring cylinder 11 to be moved upwardly by, ring cylinder 11 is connected to the conduction of side on coping plate
On piece makes short circuit between the positive electrode and negative electrode of coping plate, stops the work of battery, prevent internal pressure from continuing to rise；Also,
Protection composite layer 13 is covered in the top end surface that ring cylinder 11 is contacted with conductive sheet, protection composite layer 13 is placed in the electricity after short circuit
Necessary place is flowed, protection composite layer 13 reduces immediate current of the ring cylinder 11 after overturning, and then avoids immediate current mistake
Burn-through or fusing rotating sheet greatly, effectively protect rotating sheet, enable rotating sheet steady operation；Certainly, short circuit current
Reduce the structure fusing that also can protect positive electrode and negative electrode simultaneously.
In this way, not setting entire rotating sheet to the material structure of high impedance, the turning part 12 of one side rotating sheet needs
There is preferable overturning performance, the material of high impedance is obviously unfavorable for the compression overturning of turning part 12；On the other hand, only ring cylinder 11
Top end surface is contacted with conductive sheet, thus only in top end surface covering protection composite layer 13, reduce material consumption, saves production
Expense, convenient for batch production.
Also, the flat arrangement of the top end surface of ring cylinder 11, the top end surface of flat arrangement ensure that annulated column
Body 11 is sufficiently abutted with the conductive sheet on coping plate.
Meanwhile composite layer 13 being protected to be covered with the top end surface of turning part 12, prevent ring cylinder 11 from directly contacting with conductive sheet,
Enable that composite layer 13 is protected sufficiently to separate ring cylinder 11 and conductive sheet, and then reduces the electric current flowed through；And it is covered in smooth
The protection composite layer 13 of the top end surface of shape ensure that coming into full contact with for protection composite layer 13 and conductive sheet.
In addition, the top end surface of ring cylinder 11 is arranged in a ring, and intermediate surround of the top end surface of ring cylinder 11 is formed
There is the central channel 111 towards lower recess, in this way, the outer dimension of ring cylinder 11 can increase, so that ring cylinder 11 is supported with conductive sheet
Junction product increases, the phenomenon for avoiding the abutting of ring cylinder 11 and conductive sheet not in place.
In this way, in example 2, protect the middle part of composite layer 13 to lower recess, and cover central channel 111 side wall and
On the other hand bottom wall, the stability that on the one hand ensure that protection composite layer 13 covers will protect composite layer 13 to be fixed on annulated column
When in the top end surface of body 11, it can not have to worry meeting shadow by the way that protection composite layer 13 is welded and fixed in central channel 111
Ring the structure that protection composite layer 13 is covered on top end surface.
In addition, in embodiment 3, the periphery of protection composite layer 13 extends downward, and covers the side of ring cylinder 11, guarantee
What ring cylinder 11 abutted after overturning with conductive sheet is protection composite layer 13, to reduce the electric current flowed through.
In the present embodiment, guarantee that protection composite layer 13 has certain thickness, avoids the burn-through of protection composite layer 13 and cause
Ring cylinder 11 is directly contacted with conductive sheet, to guarantee the working performance of rotating sheet；Certainly, protection given by the utility model is multiple
Close layer 13 thickness can resistance value according to actual needs the thickness of protection composite layer 13 is adjusted.
Also, composite layer 13 is protected to be combined fixation with ring cylinder 11；In other embodiments, protection composite layer 13 can also be with
It is integrally formed with rotating sheet, i.e., will directly protect top end surface of the composite layer 13 as ring cylinder 11；Certainly, composite layer 13 is protected
Be not limited only to aforesaid way with the connection type of ring cylinder 11, it is all can be carried out fixed connection type all and can be included in this it is practical new
In the protection scope of type.
In addition, turning part 12 is arranged in horizontal plane in bending, and composite layer 13 is protected not contact turning part 12, only in ring
Setting protection composite layer 13 on cylinder 11 is that the shape of ring cylinder 11 will not be influenced due to rotating sheet overturning, and turning part 12
Due to the elasticity for needing to be held turned over, no longer composite layer 13 is protected in setting thereon, is to influence turning part 12 in order to prevent preferably
Performance is overturn, also, turning part 12 does not need to contact with conductive sheet yet, reduces the material consumption of protection composite layer 13.
Turning part 12 is arranged in bending in the horizontal plane, is overturn convenient for 12 stress of turning part；In the present embodiment, turning part
12 have the bending ring for being formed in 11 periphery of ring cylinder and being circular layout, which is in curved arrangement in the water surface, specifically, curved
Bent ring decurvation arrangement.
In addition, the periphery of turning part 12 is formed with the interconnecting piece 14 being circular layout, when rotating sheet needs to be mounted on battery top
When in lid, then the interconnecting piece 14 and the coping plate of battery cap can be attached, so that rotating sheet is fixed in coping plate,
And turning part 12 is in vacant state；The horizontal arrangement of interconnecting piece 14, and the upper surface of interconnecting piece 14 and lower end surface are in smooth
Shape arrangement, in this way, the installation convenient for rotating sheet and coping plate is fixed.
In the present embodiment, annular lug 121 outstanding downward is formed in the middle part of 12 lower surface of turning part, in this way, annular
Convex block 121 is equivalent to reserved thickness, and entire rotating sheet may further be avoided to be blown.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the utility model within novel spirit and principle
Within the scope of shield.
Claims (9)
1. the overvoltage protection structure of rotating sheet, which is characterized in that including stress overturning turning part and be located at turning part in the middle part of
Ring cylinder, the ring cylinder extends upward to be longitudinally arranged, the ring cylinder have away from turning part top end surface, and
The top end surface of the ring cylinder is covered with protection composite layer.
2. the overvoltage protection structure of rotating sheet as described in claim 1, which is characterized in that the top end surface of the ring cylinder is in
Smooth shape arrangement.
3. the overvoltage protection structure of rotating sheet as described in claim 1, which is characterized in that the protection composite layer is covered with described
The top end surface of turning part.
4. the overvoltage protection structure of rotating sheet as described in claim 1, which is characterized in that the top end surface of the ring cylinder is in
It is circular layout, and the intermediate of the top end surface of the ring cylinder surrounds the central channel being formed with towards lower recess.
5. the overvoltage protection structure of rotating sheet as claimed in claim 4, which is characterized in that it is described protection composite layer middle part to
Lower recess, and cover the side wall and bottom wall of the central channel.
6. such as the overvoltage protection structure of rotating sheet described in any one of claim 1 to 5, which is characterized in that the protection is compound
The periphery of layer extends downward, and covers the side of the ring cylinder.
7. such as the overvoltage protection structure of rotating sheet described in any one of claim 1 to 5, which is characterized in that the protection is compound
Layer is fixed in conjunction with the ring cylinder.
8. such as the overvoltage protection structure of rotating sheet described in any one of claim 1 to 5, which is characterized in that turning part exists
Horizontal plane is arranged in bending, and described composite layer is protected not contact turning part.
9. such as the overvoltage protection structure of rotating sheet described in any one of claim 1 to 5, which is characterized in that turning part
Periphery is formed with the interconnecting piece being circular layout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821267263.9U CN208478457U (en) | 2018-08-07 | 2018-08-07 | The overvoltage protection structure of rotating sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821267263.9U CN208478457U (en) | 2018-08-07 | 2018-08-07 | The overvoltage protection structure of rotating sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208478457U true CN208478457U (en) | 2019-02-05 |
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ID=65208142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821267263.9U Active CN208478457U (en) | 2018-08-07 | 2018-08-07 | The overvoltage protection structure of rotating sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208478457U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109037578A (en) * | 2018-08-07 | 2018-12-18 | 深圳市瑞德丰精密制造有限公司 | The overvoltage protection structure of rotating sheet |
-
2018
- 2018-08-07 CN CN201821267263.9U patent/CN208478457U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109037578A (en) * | 2018-08-07 | 2018-12-18 | 深圳市瑞德丰精密制造有限公司 | The overvoltage protection structure of rotating sheet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 213200 Minghu Road, Jintan District, Changzhou City, Jiangsu Province, 399 Patentee after: Changzhou Redford Precision Technology Co., Ltd. Address before: 518107 Shenzhen, Guangdong, Guangming New District, Martin street, Sixth Industrial Zone, sixth 3A Industrial Park, Xu FA Science Park 6, 7, 3 buildings. Patentee before: SHENZHEN RED FAIRY PRECISION TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |