CN204792950U - Lithium cell block of explosion -proof piece is prevented blockking up in area - Google Patents
Lithium cell block of explosion -proof piece is prevented blockking up in area Download PDFInfo
- Publication number
- CN204792950U CN204792950U CN201520489058.7U CN201520489058U CN204792950U CN 204792950 U CN204792950 U CN 204792950U CN 201520489058 U CN201520489058 U CN 201520489058U CN 204792950 U CN204792950 U CN 204792950U
- Authority
- CN
- China
- Prior art keywords
- explosion
- burst disk
- groove
- proof piece
- ring
- 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.)
- Active
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 provides a lithium cell block of explosion -proof piece is prevented blockking up in area, including top cap, PTC ring, explosion -proof piece, connection piece and sealing washer, top cap, PTC ring, explosion -proof piece and connection piece from the top down arrange in proper order and arrange in in the sealing washer, be equipped with the cage ring between explosion -proof piece and the connection piece, be equipped with the groove on the explosion -proof piece, the groove is the C type. The utility model provides a lithium cell block of explosion -proof piece is prevented blockking up in area adopts non - confined C type groove to replace original closed curve, makes explosion -proof piece along the groove disconnection constantly the explosion -proof piece of on -line portion with whole not breaking away from of the outside explosion -proof piece of groove, break away from the part and only take place around the junction to rotate the perk, can only hide the part hole of exhausting, consequently, can realize that release pressure prevents the purpose of explosion, also can prevent to break away from the explosion -proof piece of part and stop up the pore area that exhausts and come the potential safety hazard.
Description
Technical field
The utility model relates to technical field of lithium ion, particularly relates to a kind of lithium battery cap with anti-clogging burst disk.
Background technology
On lithium ion battery, positive pole is provided with block, and general block comprises top cover, burst disk, cage ring, brace and sealing ring, and wherein, burst disk, cage ring and brace are for be set in together successively, and profile is circular.When battery in use or ambient temperature rise time, the temperature of battery will raise, and temperature rising can make inside battery gas expansion, cell internal pressure is increased, easily sets off an explosion.In order to prevent battery from exploding because internal pressure is excessive, be provided with closed groove on burst disk surface.When cell internal pressure is excessive, burst disk disconnects at groove place under pressure, and inside battery is connected with extraneous, thus prevents blast by the steam vent release cell internal pressure on top cover.But, conventional burst disk groove is a closed curve, after groove place disconnects, burst disk groove interior zone departs from from burst disk, the burst disk of disengaging part can move freely in top cover inside, there is the risk (as shown in Figure 4) blocking top cover steam vent, internal pressure is not set off an explosion by steam vent release, there is potential safety hazard.
Utility model content
Technical problem to be solved in the utility model is: in order to overcome deficiency of the prior art, the utility model provides a kind of lithium battery cap with anti-clogging burst disk, groove in burst disk adopts the C type curve of misclosure, when burst disk acts on the disconnection of groove place by internal pressure, do not disconnect owing to there being part inside and outside groove, therefore, the burst disk part of disconnection can not freely move in top cover, solves the technical problem departing from Partial Blocking steam vent.
The utility model solves the technical scheme that its technical problem will adopt: a kind of lithium battery cap with anti-clogging burst disk, comprise top cover, PTC ring, burst disk, brace and sealing ring, described top cover, PTC ring, burst disk and brace are arranged successively from top to bottom and are placed in described sealing ring, cage ring is provided with between described burst disk and brace, described burst disk is provided with groove, and described groove is C type.Nonocclusive C type groove is adopted to replace original closed curve, outside burst disk does not all depart from groove to make burst disk disconnect the inner burst disk of time line along groove, depart from the tilting that partly only rotates around junction, portion discharge hole can only be covered in, therefore, the object that release pressure prevents from exploding can be realized, also can prevent departing from part burst disk blocking steam vent and bring potential safety hazard.
Further, the length of described PTC ring internal diameter is greater than the distance of any point-to-point transmission on described groove.After ensureing that burst disk groove disconnects, breaking part can tilt through PTC ring, realizes release pressure.
Further, described top cover, PTC ring are equal with burst disk external diameter.The equal encapsulation being conducive to sealing ring of external diameter.
Further, described sealing ring edge is provided with the bound edge to top cover side, and the edge of described top cover, PTC ring and burst disk is placed in described bound edge.Bound edge makes the connection of top cover, PTC ring and burst disk tightr.
Further, described top cover is provided with steam vent.Steam vent is used for release pressure.
The beneficial effects of the utility model are: a kind of lithium battery cap with anti-clogging burst disk that the utility model provides, the groove of burst disk adopts the C type curve of misclosure, when burst disk acts on the disconnection of groove place by internal pressure, outside burst disk does not all depart from groove to make burst disk disconnect the inner burst disk of time line along groove, depart from the tilting that partly only rotates around junction, do not disconnect owing to there being part inside and outside groove, therefore, the burst disk part disconnected can not freely move in top cover, prevent from departing from Partial Blocking steam vent, do not affect inner pressure of battery release.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the structural representation of burst disk groove off-state of the present utility model.
Fig. 2 is the structural representation of burst disk groove in Fig. 1.
Fig. 3 is the structural representation of burst disk groove in Fig. 1.
Fig. 4 is the structural representation of burst disk groove off-state in prior art.
In figure: 1, top cover, 2, PTC ring, 3, burst disk, 4, cage ring, 5, brace, 6, sealing ring, 7, bound edge, 8, groove, 9, steam vent, 10, shell.
Embodiment
By reference to the accompanying drawings the utility model is described in detail now.This figure is the schematic diagram simplified, and only basic structure of the present utility model is described in a schematic way, therefore it only shows the formation relevant with the utility model.
As Figure 1-3, a kind of lithium battery cap with anti-clogging burst disk of the present utility model, comprise top cover 1, PTC ring 2, burst disk 3, cage ring 4, brace 5 and sealing ring 6, sealing ring 6 edge is provided with the bound edge 7 to top cover 1 curving, the section of bound edge 7 is the U-shaped of opening towards block center position, top cover 1, PTC ring 2, burst disk 3 and brace 4 are arranged successively from top to bottom and are placed in sealing ring 6, wherein, top cover 1, PTC ring 2 is equal with burst disk 3 external diameter, top cover 1, the edge of PTC ring 2 and burst disk 3 is placed in the bound edge 7 of sealing ring 6, bound edge 7 makes the connection of three tightr.Cage ring 4 is provided with, cage ring 4 and burst disk 3 and brace 5 interference fit between burst disk 3 and brace 5.Burst disk 3 is provided with C type groove 8, nonocclusive C type groove 8 is adopted to replace original closed curve, when burst disk 3 groove 8 is disconnected, inside does not all depart from burst disk 3 outside, depart from the tilting that partly only rotates around junction, the portion discharge hole 9 for release pressure on top cover 1 can only be covered in, therefore, can realize the object that release pressure prevents from exploding, the Partial Blocking steam vent 9 that also can prevent burst disk 3 from disconnecting brings potential safety hazard.After ensureing that burst disk 3 groove 8 disconnects, breaking part can tilt through PTC ring 2, and realize release pressure, the length of PTC ring 2 internal diameter is greater than the distance of any point-to-point transmission on groove 8.
Block integral installation is at the positive terminal of li battery shell 10.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff not departing from scope of the present utility model, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on specification, must determine its technical scope according to right.
Claims (5)
1. the lithium battery cap with anti-clogging burst disk, comprise top cover (1), PTC ring (2), burst disk (3), brace (5) and sealing ring (6), described top cover (1), PTC ring (2), burst disk (3) and brace (5) are arranged successively from top to bottom and are placed in described sealing ring (6), cage ring (4) is provided with between described burst disk (3) and brace (5), it is characterized in that: described burst disk (3) is provided with groove (8), described groove (8) is C type.
2. the lithium battery cap of band anti-clogging burst disk as claimed in claim 1, is characterized in that: the length of described PTC ring (2) internal diameter is greater than the distance of the upper any point-to-point transmission of described groove (8).
3. the lithium battery cap of band anti-clogging burst disk as claimed in claim 2, is characterized in that: described top cover (1), PTC ring (2) are equal with burst disk (3) external diameter.
4. the lithium battery cap of band anti-clogging burst disk as claimed in claim 3, it is characterized in that: described sealing ring (6) edge is provided with the bound edge (7) to top cover side, the edge of described top cover (1), PTC ring (2) and burst disk (3) is placed in described bound edge (7).
5. the lithium battery cap of the band anti-clogging burst disk as described in any one of claim 1-4, is characterized in that: described top cover (1) is provided with steam vent (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520489058.7U CN204792950U (en) | 2015-07-08 | 2015-07-08 | Lithium cell block of explosion -proof piece is prevented blockking up in area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520489058.7U CN204792950U (en) | 2015-07-08 | 2015-07-08 | Lithium cell block of explosion -proof piece is prevented blockking up in area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204792950U true CN204792950U (en) | 2015-11-18 |
Family
ID=54532943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520489058.7U Active CN204792950U (en) | 2015-07-08 | 2015-07-08 | Lithium cell block of explosion -proof piece is prevented blockking up in area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204792950U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019033767A1 (en) * | 2017-08-16 | 2019-02-21 | 深圳市瑞德丰精密制造有限公司 | Rupture panel |
| CN111357132A (en) * | 2018-07-23 | 2020-06-30 | 株式会社Lg化学 | Secondary battery pack including cell frame having coating prevention part |
| CN113594622A (en) * | 2021-07-21 | 2021-11-02 | 宁波小顶科技有限公司 | Integrated battery directional exhaust device |
| CN113690552A (en) * | 2021-08-26 | 2021-11-23 | 东莞凯德新能源有限公司 | Cylindrical lithium battery cap |
| CN114447516A (en) * | 2022-02-10 | 2022-05-06 | 济宁海富光学科技有限公司 | Explosion-proof valve, lithium battery cover plate and lithium battery |
-
2015
- 2015-07-08 CN CN201520489058.7U patent/CN204792950U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019033767A1 (en) * | 2017-08-16 | 2019-02-21 | 深圳市瑞德丰精密制造有限公司 | Rupture panel |
| CN111357132A (en) * | 2018-07-23 | 2020-06-30 | 株式会社Lg化学 | Secondary battery pack including cell frame having coating prevention part |
| US11621447B2 (en) | 2018-07-23 | 2023-04-04 | Lg Energy Solution, Ltd. | Secondary battery pack including cell frame with coating prevention part |
| CN113594622A (en) * | 2021-07-21 | 2021-11-02 | 宁波小顶科技有限公司 | Integrated battery directional exhaust device |
| CN113690552A (en) * | 2021-08-26 | 2021-11-23 | 东莞凯德新能源有限公司 | Cylindrical lithium battery cap |
| CN114447516A (en) * | 2022-02-10 | 2022-05-06 | 济宁海富光学科技有限公司 | Explosion-proof valve, lithium battery cover plate and lithium battery |
| CN114447516B (en) * | 2022-02-10 | 2023-07-07 | 徐州海富轻金属科技有限公司 | Explosion-proof valve, lithium battery cover plate and lithium battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204792950U (en) | Lithium cell block of explosion -proof piece is prevented blockking up in area | |
| CN107425222A (en) | A kind of lithium battery explosion-proof flame-retardant structure | |
| CN204795137U (en) | Incoming telegram suggestion protective housing | |
| CN104485488B (en) | One can maintenance type lithium battery | |
| CN204792945U (en) | Prevent short circuit block | |
| CN201804935U (en) | Battery safety valve | |
| CN202509834U (en) | Ventilated pole | |
| CN203674281U (en) | Lithium battery cover plate | |
| CN204732814U (en) | Cable cavern stopper | |
| CN204991882U (en) | Explosion -proof early warning lithium cell | |
| CN203607462U (en) | Battery | |
| CN204045648U (en) | A kind of Safty electronic cigarette and electronic cigarette battery | |
| CN203774388U (en) | Cylindrical lithium battery explosion-proof cap | |
| CN201758146U (en) | Battery cathode bottom cover | |
| CN205079553U (en) | Tunnel type that can keep balance pressure between adjacent box fast toasts unit and toast line thereof | |
| CN206353562U (en) | Cylindrical battery with explosion-proof cap | |
| CN221041327U (en) | Safety protection structure of energy storage system | |
| CN203589110U (en) | Safe and explosion-proof carbon-zinc battery | |
| CN203910886U (en) | Battery box and battery device for electric vehicle | |
| CN104712797A (en) | Novel top safety valve of single crystal furnace | |
| CN205194765U (en) | Round lithium ion battery | |
| CN201435413Y (en) | Lithium ion battery combined nut cap | |
| CN203456515U (en) | Explosion-proof structure of lithium ion battery | |
| CN202993884U (en) | Anti-explosion device of heating furnace | |
| CN208849292U (en) | A kind of lighting case cabinet body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 213000 11 and 11-1 Jinghu Road, Wujin national hi tech Industrial Development Zone, Changzhou, Jiangsu, China Patentee after: Changzhou Wujin Zhong Rui electronic Polytron Technologies Inc Address before: 213161 801 people's road, Wujin District, Changzhou, Jiangsu Patentee before: Changzhou Wujin Zhongrui Electronics Co.,Ltd. |