CN202712307U - Explosion-resistant combined cover of lithium ion battery - Google Patents

Explosion-resistant combined cover of lithium ion battery Download PDF

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Publication number
CN202712307U
CN202712307U CN2012203913179U CN201220391317U CN202712307U CN 202712307 U CN202712307 U CN 202712307U CN 2012203913179 U CN2012203913179 U CN 2012203913179U CN 201220391317 U CN201220391317 U CN 201220391317U CN 202712307 U CN202712307 U CN 202712307U
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CN
China
Prior art keywords
explosion
lithium ion
resistant
top cover
ion battery
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 - Lifetime
Application number
CN2012203913179U
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Chinese (zh)
Inventor
周勤勇
杨建林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuxi Jinyang New Material Co ltd
Original Assignee
WUXI CITY JINGYANG NEW TYPE POWER SUPPLY CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by WUXI CITY JINGYANG NEW TYPE POWER SUPPLY CO Ltd filed Critical WUXI CITY JINGYANG NEW TYPE POWER SUPPLY CO Ltd
Priority to CN2012203913179U priority Critical patent/CN202712307U/en
Application granted granted Critical
Publication of CN202712307U publication Critical patent/CN202712307U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Gas Exhaust Devices For Batteries (AREA)

Abstract

The utility model discloses an explosion-resistant combined cover of a lithium ion battery. The explosion-resistant combined cover comprises a seal ring. A top cover, an explosion-resistant piece and a pore plate are installed successively from top to bottom in a sealed mode inside the seal ring. The top cover is provided with an air hole and is connected with the two ends of the explosion-resistant piece in a welded mode. Dents are arranged on the explosion-resistant piece and flangings are arranged inwards at the two ends of the explosion-resistant piece, wherein the two ends of the explosion-resistant piece are arranged on the upper portion of the top cover. The flangings are attached to the top cover closely. The middle part of the explosion-resistant piece sinks and is connected with the pore hole by a plurality of laser welding spots. The explosion-resistant piece is supported by a step. The step is arranged inwards and at the bottom of the seal ring. The pore plate is provided a plurality of air pores. The explosion-resistant combination cover of the lithium ion battery has the advantages of being simple in structure and easy to operate. Due to the fact that the explosion-resistant piece is connected with the pore plate through the laser welding spots, the explosion-resistant piece transforms and snaps the laser welding spots when the intrinsic pressure of the battery rises, and then an open circuit is formed and the dents of the explosion-resistant piece will burst at the rated air pressure, so that safety performance is improved and explosion-resistant effect is achieved.

Description

The explosion-proof combined block of lithium ion battery
Technical field
The utility model relates to a kind of block, relates in particular to a kind of explosion-proof combined block of lithium ion battery.
Background technology
Lithium ion battery is a kind of rechargeable battery, and it mainly relies on lithium ion to move work between positive pole and negative pole.In charge and discharge process, Li+ comes and goes embedding and takes off embedding between two electrodes: during rechargable battery, Li+ takes off embedding from positive pole, embeds negative pole through electrolyte, and negative pole is in rich lithium state; Then opposite during discharge.The characteristics such as volume is little, lightweight because lithium ion battery has, electric weight is strong, environmental protection have been widely used in industrial production and the daily life.Along with the extensive use of lithium ion battery, its some potential safety hazards of bringing also manifest thereupon; When lithium ion cell charging or short time during heavy-current discharge, can produce a large amount of gases, gas reaches certain pressure, and battery might produce blast, has brought potential safety hazard to the user.
The utility model content
The purpose of this utility model is for the problems referred to above, and a kind of explosion-proof combined block of lithium ion battery is provided, and it has simple in structure, is easy to realize, explosion-proof is good, safe characteristics.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of explosion-proof combined block of lithium ion battery, comprise sealing ring, be packaged with successively from top to bottom top cover in the described sealing ring, burst disk and orifice plate, have pore on the described top cover, and the two ends of itself and burst disk welding, be provided with indenture on the described burst disk, and the top that end, burst disk both sides is positioned at top cover inwardly is provided with flange, described flange and top cover fit tightly, the place sinks in the middle of the described burst disk, and be connected by a plurality of laser solder joints with orifice plate, and burst disk supported by the step that the sealing ring bottom inwardly arranges, and has a plurality of air-vents on the described orifice plate.
Further, have 4 air-vents on the described orifice plate.
Further, described burst disk is connected with orifice plate by 6 laser solder joints.
Further, described laser solder joint evenly distributes, and is distributed on the same circumference.
Further, the top that is positioned at top cover in the described sealing ring is provided with a circle fin.
The beneficial effects of the utility model are, the explosion-proof combined block of described lithium ion battery is simple in structure, be easy to realize, its burst disk is connected by the laser solder joint with orifice plate, when inner pressure of battery rises, the laser solder joint is broken in the burst disk distortion, and formation is opened circuit, and the indenture on the burst disk can pop under specified air pressure, further improve fail safe, effectively played explosion-proof effect.
Description of drawings
Fig. 1 is the profile of the explosion-proof combined block of the utility model lithium ion battery;
Fig. 2 is the upward view of the explosion-proof combined block of the utility model lithium ion battery.
Among the figure:
1, sealing ring; 2, top cover; 3, burst disk; 4, laser solder joint; 5, fin; 6, flange; 7, indenture; 8, orifice plate; 9, air-vent; 10, step.
Embodiment
Further specify the technical solution of the utility model below in conjunction with accompanying drawing and by embodiment.
Please refer to Figure 1 and Figure 2, Fig. 1 is the profile of the explosion-proof combined block of the utility model lithium ion battery; Fig. 2 is the upward view of the explosion-proof combined block of the utility model lithium ion battery.In the present embodiment, a kind of explosion-proof combined block of lithium ion battery, comprise sealing ring 1, be packaged with successively from top to bottom top cover 2 in the described sealing ring 1, burst disk 3 and orifice plate 8, and the top that is positioned at top cover 2 in the sealing ring 1 is provided with a circle fin 5, outwards be subjected to displacement with respect to sealing ring 1 with restriction top cover 2, have pore on the described top cover 2, and the two ends of itself and burst disk 3 welding, be provided with indenture 7 on the described burst disk 3, and the top that end, burst disk 3 both sides is positioned at top cover 2 inwardly is provided with flange 6, described flange 6 fits tightly with top cover 2, the place sinks in the middle of the described burst disk 3, and be connected by 6 laser solder joints 4 with orifice plate 8, described laser solder joint 4 evenly distributes, and is distributed on the same circumference, burst disk 3 is supported by the step 10 that sealing ring 1 bottom inwardly arranges, and has 4 air-vents 9 on the described orifice plate 8.
Under the use state, orifice plate 8 directly contacts with the charging material of inside battery, if the air pressure of inside battery raises, laser solder joint 4 is broken in burst disk 3 distortion, forms outage; When inside battery air pressure continued to raise, the indenture 7 on the burst disk 3 namely broke, and discharged internal gas, effectively played explosion-proof effect.
Above embodiment has just set forth basic principle of the present utility model and characteristic; the utility model is not limited by above-described embodiment; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various variations and change, and these variations and change all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (5)

1. the explosion-proof combined block of a lithium ion battery, it is characterized in that: comprise sealing ring, be packaged with successively from top to bottom top cover in the described sealing ring, burst disk and orifice plate, have pore on the described top cover, and the two ends of itself and burst disk welding, be provided with indenture on the described burst disk, and the top that end, burst disk both sides is positioned at top cover inwardly is provided with flange, described flange and top cover fit tightly, the place sinks in the middle of the described burst disk, and be connected by a plurality of laser solder joints with orifice plate, and burst disk supported by the step that the sealing ring bottom inwardly arranges, and has a plurality of air-vents on the described orifice plate.
2. the explosion-proof combined block of lithium ion battery according to claim 1 is characterized in that: have 4 air-vents on the described orifice plate.
3. the explosion-proof combined block of lithium ion battery according to claim 1 is characterized in that: described burst disk is connected with orifice plate by 6 laser solder joints.
4. according to claim 1 or the explosion-proof combined block of 3 described lithium ion batteries, it is characterized in that: described laser solder joint evenly distributes, and is distributed on the same circumference.
5. the explosion-proof combined block of lithium ion battery according to claim 1 is characterized in that: the top that is positioned at top cover in the described sealing ring is provided with a circle fin.
CN2012203913179U 2012-08-08 2012-08-08 Explosion-resistant combined cover of lithium ion battery Expired - Lifetime CN202712307U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012203913179U CN202712307U (en) 2012-08-08 2012-08-08 Explosion-resistant combined cover of lithium ion battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012203913179U CN202712307U (en) 2012-08-08 2012-08-08 Explosion-resistant combined cover of lithium ion battery

Publications (1)

Publication Number Publication Date
CN202712307U true CN202712307U (en) 2013-01-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012203913179U Expired - Lifetime CN202712307U (en) 2012-08-08 2012-08-08 Explosion-resistant combined cover of lithium ion battery

Country Status (1)

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CN (1) CN202712307U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106784428A (en) * 2017-01-17 2017-05-31 无锡市金杨新型电源有限公司 A kind of anti-explosion battery shell
CN107492604A (en) * 2017-08-02 2017-12-19 江苏镭腾能源科技有限公司 A kind of dynamic lithium battery explosion-proof cap component
CN108598300A (en) * 2018-06-29 2018-09-28 无锡金杨丸伊电子有限公司 a kind of battery cap
CN109273328A (en) * 2017-07-18 2019-01-25 平高集团有限公司 A kind of installation method of explosion-protection equipment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106784428A (en) * 2017-01-17 2017-05-31 无锡市金杨新型电源有限公司 A kind of anti-explosion battery shell
CN109273328A (en) * 2017-07-18 2019-01-25 平高集团有限公司 A kind of installation method of explosion-protection equipment
CN109273328B (en) * 2017-07-18 2022-11-29 平高集团有限公司 Installation method of explosion-proof device
CN107492604A (en) * 2017-08-02 2017-12-19 江苏镭腾能源科技有限公司 A kind of dynamic lithium battery explosion-proof cap component
CN108598300A (en) * 2018-06-29 2018-09-28 无锡金杨丸伊电子有限公司 a kind of battery cap

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: 214117 6 Wuxi Road, Xishan, Jiangsu.

Patentee after: WUXI JINYANG NEW MATERIAL Co.,Ltd.

Address before: 214117 6 Wuxi Road, Xishan, Jiangsu.

Patentee before: WUXI CITY JINYANG NEW TYPE POWER SUPPLY Co.,Ltd.

CP01 Change in the name or title of a patent holder
CX01 Expiry of patent term

Granted publication date: 20130130

CX01 Expiry of patent term