CN208315618U - A kind of large scale rupture disk and battery cap - Google Patents
A kind of large scale rupture disk and battery cap Download PDFInfo
- Publication number
- CN208315618U CN208315618U CN201820583095.8U CN201820583095U CN208315618U CN 208315618 U CN208315618 U CN 208315618U CN 201820583095 U CN201820583095 U CN 201820583095U CN 208315618 U CN208315618 U CN 208315618U
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- Prior art keywords
- annular
- rupture disk
- plate
- open
- indentation
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- 238000007373 indentation Methods 0.000 claims abstract description 36
- 238000009434 installation Methods 0.000 claims abstract description 19
- 238000005406 washing Methods 0.000 claims abstract description 10
- 238000005452 bending Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 5
- 238000004880 explosion Methods 0.000 abstract description 32
- 239000012634 fragment Substances 0.000 abstract description 2
- 230000035945 sensitivity Effects 0.000 description 8
- 238000003466 welding Methods 0.000 description 5
- 238000013467 fragmentation Methods 0.000 description 3
- 238000006062 fragmentation reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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
Utility model discloses a kind of large scale rupture disk, rupture disk is square structure, it include: that installation ring body and setting wash plate open the mounting ring is intracorporal, plate and the installation ring body are washed open described in the lower protrusion connection of one annular, one annular groove is set on the lower protrusion of the annular, and the lower protrusion of the annular and the plate outer edge of washing open are adapted, the indentation of one annular of setting in the annular groove, the indentation originates in the first end of an interconnecting piece, and the indentation terminates at the second end of the interconnecting piece.The utility model washes plate open by being arranged in mounting ring body, and the lower protrusion of annular, annular are arranged annular groove in lower protrusion, are provided with annular indentation in annular groove, annular indentation is interrupted in an interconnecting piece, plate is washed in only one burst region, interconnecting piece connection open, while preventing from generating fragment when explosion also to hurt other, the lower protrusion of annular makes to wash plate miniaturization open, structure is more stable, is unlikely to deform, to improve explosion precision and explosion timeliness.
Description
Technical field
The utility model relates to field of battery production more particularly to a kind of large scale rupture disks and battery cap.
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.
Battery includes shell, cover board and battery core etc., and wherein battery core is placed in the inside of shell, and the upper end of shell has upper end
Opening, cover board are then enclosed in the opening of the upper end of shell, then by forming pole on the cover board, then can be by battery and outside
Electronic component be electrically connected, realize power supply.
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 the internal pressure that will lead to battery is excessive, so that battery explosion accident occur.Battery explosion, gently then
Electronic product is damaged, it is heavy then injure user, also, for big battery, such as new-energy automobile field, bus and energy storage
Power station etc., battery explosion then directly threaten the security of the lives and property of people.
When the internal pressure of battery is excessive, battery explosion, needs to leak the intracorporal pressure of the shell of battery in order to prevent,
Current explosion-proof method is that rupture disk is arranged on the cover board of battery, when the internal pressure of battery is excessive, passes through rupture disk explosion
Leak pressure, and for big battery, the energy needed is larger, and the requirement to explosion rupture disk is then higher, such as explosion rupture disk
Sensitivity it is more demanding etc..
In the prior art, when the size of rupture disk is smaller, rupture disk is then easy the induction intracorporal pressure of shell, when in shell
Pressure it is excessive when, can accurately realize explosion；But existing large-scale explosion rupture disk is held because area is big when being pressurized
It is easily-deformable to influencing explosion precision and explosion timeliness.
Utility model content
In consideration of it, the purpose of this utility model is in view of the above-mentioned drawbacks of the prior art, to provide a kind of large scale quick-fried
Fragmentation and battery cap.
The technical solution adopted in the utility model is to design a kind of large scale rupture disk, and rupture disk is square structure, packet
Include: installation ring body and setting wash plate open the mounting ring is intracorporal, wash plate and the peace open described in the lower protrusion connection of an annular
Ring body is filled, an annular groove is set on the lower protrusion of the annular, the lower protrusion of the annular and the plate outer edge of washing open are adapted,
The indentation of one annular of setting, the indentation originate in the first end of an interconnecting piece in the annular groove, and the indentation terminates at
The second end of the interconnecting piece.
Preferably, the bottom of the annular groove is annular flat face, and the indentation setting is on the annular flat face.
The setting of the annular flat face, facilitates the processing of indentation, and the arrangement of indentation is carried out on the annular flat face, can be effective
Reduce the difficulty of processing of indentation.
Preferably, the thickness of the annular groove bottom is less than the installation ring body and the thickness for washing plate open.By institute
It states bottom portion of groove and is arranged relatively thin, the sensitivity of the rupture disk can be promoted in the case where not increasing width of nick, reduce
The difficulty of processing of indentation.
Preferably, described to wash plate open and connect with the annular groove by a side plate bending transition.Plate and institute are washed open because described in
It states between the bottom of annular groove there are thickness difference, so plate and the annular groove washed open passes through side plate bending transition company
Connect, the structure of the rupture disk can be optimized, wash the intensity of plate described in increase open, make it is described split plate and be unlikely to deform, and increase
The opening of the annular groove and reduce the area for washing plate open, improves the sensitivity of the rupture disk.
Preferably, the interconnecting piece is one section of the annular flat face.Plate is washed in the interconnecting piece connection open, described quick-fried
When fragmentation crosses great explosion because of cell internal pressure, make it is described wash plate open and be unlikely to be washed open completely, cause it is described wash plate open and fall,
And the annular flat face is arranged in the bottom of the annular groove, thinner thickness, the interconnecting piece being formed on, it can be with
Increase the explosion precision and sensitivity of the rupture disk.
Preferably, described to wash upper level of the plate upper level lower than the installation ring body open.It is described to wash open on plate
Apparent height is lower, can be convenient the installation of the rupture disk, washes the space above plate described in increase open, avoids rupture disk explosion
When on the insufficient problem in space occur influencing the timeliness of explosion.
Preferably, the corner of the square structure is rounded structure.Square structure is adapted to large scale design, rounded structure
Convenient for the installation of the rupture disk, when welding the rupture disk, rounded structure is more easier processing welding lines.
Preferably, the installation ring body, described wash plate, the lower protrusion of the annular, the annular groove and the indentation open
For square structure, corner is also rounded structure accordingly.
A kind of battery cap is also designed, rupture disk providing holes, the rupture disk providing holes are provided on the battery cap
For installing aforementioned rupture disk.The rupture disk providing holes prevents cell internal pressure excessively high and leads for the rupture disk to be arranged
Cause battery explosion.
Preferably, the battery cap includes: cover board, pole, the pole providing holes being arranged on the cover board.The pole
Column is used to the conductance in battery going out the external world, and the pole providing holes is for being arranged the pole.
Compared with prior art, the utility model at least has the advantages that the utility model passes through in mounting ring
Plate, and the lower protrusion of annular are washed in setting in vivo open, and annular is arranged annular groove in lower protrusion, is provided with annular quarter in annular groove
Trace, annular indentation are interrupted in an interconnecting piece, and plate is washed in only one burst region, interconnecting piece connection open, while when also preventing explosion
Fragment is generated to hurt other, the lower protrusion of annular makes to wash plate miniaturization open, and structure is more stable, is unlikely to deform, to improve
Explosion precision and explosion timeliness, more efficiently protect battery and user of service.
Detailed description of the invention
Fig. 1 is the upper schematic diagram of the utility model embodiment；
Fig. 2 is the isometric view of the utility model embodiment；
Fig. 3 is the diagrammatic cross-section of the utility model embodiment；
Fig. 4 is the overall schematic of one cover board of the utility model embodiment；
Fig. 5 is the diagrammatic cross-section of one cover board of the utility model embodiment；
Fig. 6 is partial enlarged view at A in the utility model embodiment Fig. 5.
Wherein: 1, cover board；12, pole providing holes；2, pole；3, the first ring body；4, the second ring body；5, sealing ring；6, quick-fried
Fragmentation providing holes；61, ring body is thickeied；62, mounting groove；7, rupture disk；71, ring body is installed；72, plate is washed open；73, annular groove；
731, annular flat face；732, side plate bending；74 indentations；75, interconnecting piece；76, the lower protrusion of annular；8, patch is protected.
Specific embodiment
To keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, with reference to the accompanying drawing and implement
Example is described further the utility model.
As shown in Figure 1-3, rupture disk 7 is square structure the utility model proposes a kind of large scale rupture disk, comprising:
Installation ring body 71 and be arranged in the installation ring body 71 and wash plate 72 open, the lower protrusion 76 of an annular connect it is described wash open plate 72 with
An annular groove 73 is arranged on the lower protrusion 76 of annular in the installation ring body 71, and the lower protrusion 76 of annular is washed open with described
72 outer edge shape of plate is adapted, and the indentation 74 of one annular of setting, the indentation 74 originate in a company in the annular groove 73
The first end of socket part 75, the indentation 74 terminate at the second end of the interconnecting piece 75.
Specifically, the indentation 74 only has one, the setting of plate 72 is washed open around described, the plate 72 of washing open is monolith knot
Structure, while going out is unique burst region, avoids multiple burst region bring structure shakiness problems；74 start-stop of indentation
In the both ends of the interconnecting piece 75, make it is described wash plate 72 open and still there is a junction to connect with the rupture disk 7 in explosion, make to rush
It opens 72 side of plate to be fixed, side, which is rushed to open, carries out explosion pressure release.
Further, the upper surface of the annular groove 73 is arranged in the indentation 74, because on the annular groove 73
Surface reference feature is more, convenient for the positioning and processing of indentation 74.
Further, the indentation 74 is v-shaped structure, and the processing is simple.
In the utility model embodiment, the bottom of the annular groove 73 is annular flat face 731, and the indentation 74 is set
It sets on the annular flat face 731.The setting of the annular flat face 731, facilitates the processing of indentation 74, in the annular flat
It faces the arrangement for carrying out indentation 74 on 731 directly, the difficulty of processing of indentation 74 can be effectively reduced.
Certainly, in other examples, the bottom of the annular groove 73 is also possible to the structure of other shapes, such as
U-shaped structure.
In the utility model embodiment, the thickness of 73 bottom of annular groove is less than the installation ring body 71 and described
Wash the thickness of plate 72 open.The bottom portion of groove is arranged relatively thin, institute can be promoted in the case where not increasing by 74 depth of indentation
The sensitivity of rupture disk 7 is stated, the difficulty of processing of indentation 74 is reduced.
In the utility model embodiment, plate 72 and the annular groove 73 washed open passes through 732 transition of a side plate bending
Connection.Wash between plate 72 and the bottom of the annular groove 73 that there are thickness differences open because described in, so described wash plate 72 and institute open
It states annular groove 73 to connect by 732 transition of a side plate bending, the structure of the rupture disk 7 can be optimized, wash plate open described in increase
72 intensity, make it is described split plate and be unlikely to deform, and increase the opening of the annular groove 73 and reduce and wash plate 72 open
Area improves the sensitivity of the rupture disk 7.
Certainly, as other embodiments, the plate 72 of washing open can also be by slope structure mistake with the annular groove 73
It crosses.
In the utility model embodiment, the interconnecting piece 75 is one section of the annular flat face 731.The interconnecting piece
Plate 72 is washed in 75 connections open, when the rupture disk 7 crosses great explosion because of cell internal pressure, makes described to wash plate 72 open and be unlikely to
Wash open entirely, cause it is described wash plate 72 open and fall, and the bottom of the annular groove 73 is arranged in the annular flat face 731, thick
Relatively thin, the to be formed on interconnecting piece 75 is spent, the explosion precision and sensitivity of the rupture disk 7 can be increased.
In addition, the thickness of the interconnecting piece 75 can also be selected specifically according to different needs, described in guaranteeing
The explosion precision and explosion timeliness of rupture disk 7.
It is described to wash upper surface of 72 upper level of plate lower than the installation ring body 71 open in the utility model embodiment
Highly.It is described to wash that 72 upper level of plate is lower open, it can be convenient the installation of the rupture disk 7, washed open on plate 72 described in increase
The space of side avoids the upper insufficient problem in space when 7 explosion of rupture disk from occurring influencing the timeliness of explosion.
Further, 72 lower surface of plate of washing open forms a concave inward structure, make it is described wash 72 lightweight of plate open, further
Improve the explosion sensitivity of the rupture disk 7.
In the utility model embodiment, the rupture disk 7 is square structure, and the corner of the square structure is fillet knot
Structure.Square structure is adapted to large scale design, and rounded structure is convenient for the installation of the rupture disk 7, is welding the rupture disk 7
When, rounded structure is more easier processing welding lines.
Certainly, as other embodiments, the rupture disk 7 is also possible to other shape and structures.
In the utility model embodiment, the installation ring body 71 described washes plate 72, the annular lower protrusion 76, institute open
It states annular groove 73 and the indentation 74 is square structure, corner is also rounded structure accordingly.
As Figure 4-Figure 6, a kind of battery cap is also provided, rupture disk providing holes 6, institute are provided on the battery cap
Rupture disk providing holes 6 is stated for installing aforementioned rupture disk 7.The rupture disk providing holes 6 prevents electricity for the rupture disk 7 to be arranged
Pond internal pressure is excessively high and leads to battery explosion.
In the utility model embodiment, the battery cap includes: cover board 1, pole 2, is arranged on the cover board 1
Pole providing holes 12.The pole 2 is used to the conductance in battery going out the external world, and the pole providing holes 12 is for being arranged the pole
Column 2.
Further, the pole 2 is fixed on the cover board 1 by the first ring body 3 and the second ring body 4, the pole
12 periphery of providing holes is additionally provided with sealing ring 5, inside sealed cell.
Further, 6 periphery of rupture disk providing holes, which is provided with, thickeies ring body 61, burn through when preventing from welding rupture disk 7,
It is provided with mounting groove 62 below the thickening ring body 61, to install the rupture disk 7, is set above the rupture disk providing holes 6
It is equipped with protection patch 8.
Above-described embodiment is merely to illustrate specific embodiment of the present utility model.It should be pointed out that for this field
Those of ordinary skill for, without departing from the concept of the premise utility, several deformations and variation can also be made, this
A little deformations and variation all should belong to the protection scope of the utility model.
Claims (10)
1. a kind of large scale rupture disk, rupture disk are square structure characterized by comprising installation ring body and setting are described
Mounting ring is intracorporal to wash plate open, plate and the installation ring body is washed open described in the lower protrusion connection of an annular, under the annular on protrusion
One annular groove is set, and the lower protrusion of the annular and the plate outer edge shape of washing open are adapted, setting in the annular groove
The indentation of one annular, the indentation originate in the first end of an interconnecting piece, and the indentation terminates at the second end of the interconnecting piece.
2. large scale rupture disk as described in claim 1, which is characterized in that the bottom of the annular groove is that annular is straight
Face, the indentation setting is on the annular flat face.
3. large scale rupture disk as claimed in claim 2, which is characterized in that the thickness of the annular groove bottom is less than described
Ring body and the thickness for washing plate open are installed.
4. large scale rupture disk as claimed in claim 3, which is characterized in that plate and the annular groove washed open is by one
Side plate bending transition connection.
5. large scale rupture disk as claimed in claim 4, which is characterized in that the interconnecting piece is the one of the annular flat face
Section.
6. large scale rupture disk as described in claim 1, which is characterized in that the plate upper level of washing open is lower than the peace
Fill the upper level of ring body.
7. large scale rupture disk as described in claim 1, which is characterized in that the corner of the square structure is rounded structure.
8. large scale rupture disk as claimed in claim 7, which is characterized in that corresponding, the installation ring body described is washed open
Plate, the annular lower protrusion, the annular groove and the indentation are square structure, and corner is also rounded structure accordingly.
9. a kind of battery cap, which is characterized in that be provided with rupture disk providing holes, the rupture disk setting on the battery cap
Hole is for installing any rupture disk of claim 1-8.
10. battery cap as claimed in claim 9, which is characterized in that the battery cap includes: that cover board, pole, setting exist
Pole providing holes on the cover board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820583095.8U CN208315618U (en) | 2018-04-23 | 2018-04-23 | A kind of large scale rupture disk and battery cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820583095.8U CN208315618U (en) | 2018-04-23 | 2018-04-23 | A kind of large scale rupture disk and battery cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208315618U true CN208315618U (en) | 2019-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820583095.8U Active CN208315618U (en) | 2018-04-23 | 2018-04-23 | A kind of large scale rupture disk and battery cap |
Country Status (1)
| Country | Link |
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| CN (1) | CN208315618U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021120043A1 (en) * | 2019-12-18 | 2021-06-24 | 惠州亿纬锂能股份有限公司 | Safety apparatus, fabrication method and battery |
| CN114937849A (en) * | 2022-03-28 | 2022-08-23 | 江苏正力新能电池技术有限公司 | Explosion-proof valve, battery cover plate assembly and power battery |
-
2018
- 2018-04-23 CN CN201820583095.8U patent/CN208315618U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021120043A1 (en) * | 2019-12-18 | 2021-06-24 | 惠州亿纬锂能股份有限公司 | Safety apparatus, fabrication method and battery |
| CN114937849A (en) * | 2022-03-28 | 2022-08-23 | 江苏正力新能电池技术有限公司 | Explosion-proof valve, battery cover plate assembly and power battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| 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: Guangming Martin street Shenzhen city Guangdong province 518000 water Sixth Industrial Zone xufa Science Park 6, building 7, building 3 floor 3A Patentee before: RDF FAIRY PRECISION TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 399 Minghu Road, Jintan District, Changzhou City, Jiangsu Province Patentee after: Jiangsu Ruidefeng Precision Technology Co.,Ltd. Country or region after: China Address before: 399 Minghu Road, Jintan District, Changzhou City, Jiangsu Province Patentee before: Changzhou Redford Precision Technology Co.,Ltd. Country or region before: China |