CN201435414Y - Anti-explosion combined cover cap of cylindrical battery - Google Patents
Anti-explosion combined cover cap of cylindrical battery Download PDFInfo
- Publication number
- CN201435414Y CN201435414Y CN200920185751XU CN200920185751U CN201435414Y CN 201435414 Y CN201435414 Y CN 201435414Y CN 200920185751X U CN200920185751X U CN 200920185751XU CN 200920185751 U CN200920185751 U CN 200920185751U CN 201435414 Y CN201435414 Y CN 201435414Y
- Authority
- CN
- China
- Prior art keywords
- battery
- explosion
- cylindrical battery
- sealing ring
- piece
- 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
Links
- 238000004880 explosion Methods 0.000 title abstract 8
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 239000004743 Polypropylene Substances 0.000 claims description 6
- -1 polypropylene Polymers 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 238000003466 welding Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/152—Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
- H01M50/186—Sealing members characterised by the disposition of the sealing members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/155—Lids or covers characterised by the material
- H01M50/157—Inorganic material
- H01M50/159—Metals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
- H01M50/184—Sealing members characterised by their shape or structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
- H01M50/19—Sealing members characterised by the material
- H01M50/193—Organic material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
- H01M50/593—Spacers; Insulating plates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary batteries
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model discloses an anti-explosion combined cover cap of a cylindrical battery, comprising a steel cap (1), an organic positive temperature coefficient thermistor (2), an anti-explosion piece (3), a connecting piece (5) and an isolating ring (6); the outer periphery of all the parts is coated with a sealing ring (4); and the anti-explosion piece is a Z-shaped structure. The anti-explosion combined cover cap has the beneficial effects that the improved structure can guarantee that the phenomena that the welding points between the anti-explosion piece (3) and the connecting piece (5)are damaged as the sealing ring is extruded and deformed in the process of sealing the battery and the battery is scrapped as the connecting piece (5) comes off are avoided in the actual production process of the battery more reliably, reliably guarantee that the anti-explosion piece and the connecting piece can be effectively isolated in an insulating manner when the abnormity of the battery occurs, and the internal pressure increases, and reliably break the circuit in the battery when the abnormity of the battery occurs, thus effectively playing the role of safety protection function of theanti-explosion combined cover cap.
Description
Technical field
The utility model relates to a kind of lithium battery, particularly a kind of cylindrical lithium battery.
Background technology
(positive pole) security combination cap of the cylindrical battery on the existing market is made up of steel cap, organic PTC thermistor (or becket), burst disk (aluminium).More than three parts stack, surrounding edge is a sealing ring, owing to be welded to connect between burst disk (aluminium) and the brace, the battery combination cap can push peripheral sealing ring in being fitted into the cell sealing process, cause in the sealing ring deformation process, and the part of sealing ring can be expressed to brace, pull the connection welding between burst disk (aluminium) and the brace, push connection welding like disconnected non-disconnected, perhaps simply cause linking the solder joint fracture, cause battery to be scrapped.
Summary of the invention
At the shortcoming of existing cylindrical battery combined hat, the utility model provides a kind of novel cylindrical battery combined hat.
To achieve these goals, technical solution adopted in the utility model is: the cylindrical battery explosion-proof combined block, comprise steel cap, organic PTC thermistor, burst disk, brace and cage ring, it is " Z " font structure that above assembly excircle bag shoe has sealing ring, described burst disk;
Described cage ring is a polypropylene;
Described sealing ring is a polypropylene;
Described sealing ring is provided with step;
Described sealing ring is provided with groove;
Described burst disk is an aluminium flake;
Described brace is an aluminium flake;
Solder joint connects between described burst disk and the brace.
The beneficial effects of the utility model: this structure has guaranteed to take place unusually when battery more reliably, and when internal pressure raise, burst disk and brace were isolated in insulation effectively; When battery takes place more reliably inside battery to be opened circuit when unusual, more effectively bring into play the safety protection function of explosion-proof combined block.
Description of drawings
Fig. 1, capping structure schematic diagram of the present utility model.
Fig. 1 a, structural representation of the present utility model.
The structural representation of Fig. 2, the utility model burst disk " Z " font.
The structural representation of Fig. 3, the utility model cage ring.
The end view of Fig. 3 a, Fig. 3.
The structural representation of Fig. 4, the utility model sealing ring.
The end view of Fig. 4 a, Fig. 4.
The structural representation of Fig. 5, the utility model brace.
Embodiment
See also its implementation process of description of drawings:
The cylindrical battery explosion-proof combined block comprises steel cap 1, organic PTC thermistor (or becket) 2, and burst disk 3, brace 5, the excircle bag of cage ring 6 and said modules is carried out sealing ring 4.The structure of described burst disk 3 is " Z " font structure; Described cage ring 6 is a polypropylene; Described sealing ring 4 is a polypropylene; The A place structure of described sealing ring 4 has step; The B place structure of described sealing ring 4 is fluted; Described burst disk 3 is an aluminium flake; Described brace 5 is an aluminium flake; Solder joint connects between described burst disk 3 and the brace 5.
Original no cage ring 6 in the structure, sealing ring 4 are not wrapped and are carried out brace 5, and the structure of burst disk 3 is more original improvement; Increase the benefit of cage ring 6: when battery takes place unusually, innerly produce bigger heat, interior voltage rise height when having broken between burst disk 3 and the brace 5 connection welding, is isolated the enclosing effect that burst disk 3 and brace 5 are isolated in insulation; The structure of burst disk 3 has been modified into " Z " font structure with different originally, and its effect is for the fixing position of cage ring 6; Increased step in the structure of sealing ring 4, purpose be prevent brace 5 with the phenomenon that is unlikely to depart from original position or drops and cause contacting the battery shell wall and internal short-circuit of battery takes place after burst disk 3 is separated; Designed groove in the structure of sealing ring 4, its objective is, avoided taking place extruding, reduced the possibility of damaging connection welding between burst disk 3 and the brace 5 because of extruding brace 5 in order to reduce the crimp of sealing ring 4 in battery seal.This structure has guaranteed that more reliably because of battery takes place unusually, when internal pressure raise, burst disk 3 and brace 5 were isolated in insulation effectively.When battery takes place more reliably inside battery to be opened circuit when unusual, more effectively bring into play the safety protection function of explosion-proof combined block.
Claims (8)
1, cylindrical battery explosion-proof combined block, comprise steel cap (1), organic PTC thermistor (2), burst disk (3), brace (5) and cage ring (6), above assembly excircle is coated with sealing ring (4), it is characterized in that, described burst disk (3) is " Z " font structure.
2, cylindrical battery explosion-proof combined block according to claim 1 is characterized in that, described cage ring (6) is a polypropylene.
3, cylindrical battery explosion-proof combined block according to claim 1 is characterized in that, described sealing ring (4) is a polypropylene.
4, according to claim 1 or 3 described cylindrical battery explosion-proof combined blocks, it is characterized in that described sealing ring (4) is provided with step.
5, cylindrical battery explosion-proof combined block according to claim 4 is characterized in that, described sealing ring (4) is provided with groove.
6, cylindrical battery explosion-proof combined block according to claim 1 is characterized in that, described burst disk (3) is an aluminium flake.
7, cylindrical battery explosion-proof combined block according to claim 1 is characterized in that, described brace (5) is an aluminium flake.
8, cylindrical battery explosion-proof combined block according to claim 1 is characterized in that, between described burst disk (3) and the brace (5) for being welded to connect.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920185751XU CN201435414Y (en) | 2009-07-10 | 2009-07-10 | Anti-explosion combined cover cap of cylindrical battery |
| PCT/CN2010/075104 WO2011003367A1 (en) | 2009-07-10 | 2010-07-12 | Combined explosion-proof cover cap for cylindrical battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920185751XU CN201435414Y (en) | 2009-07-10 | 2009-07-10 | Anti-explosion combined cover cap of cylindrical battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201435414Y true CN201435414Y (en) | 2010-03-31 |
Family
ID=42054230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920185751XU Expired - Lifetime CN201435414Y (en) | 2009-07-10 | 2009-07-10 | Anti-explosion combined cover cap of cylindrical battery |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN201435414Y (en) |
| WO (1) | WO2011003367A1 (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916833A (en) * | 2010-08-20 | 2010-12-15 | 芜湖根源科技有限公司 | Explosion-proof cover cap of lithium battery |
| WO2011003367A1 (en) * | 2009-07-10 | 2011-01-13 | Yang Xuexin | Combined explosion-proof cover cap for cylindrical battery |
| CN102005549A (en) * | 2010-10-27 | 2011-04-06 | 杨学新 | Explosion-proof combined cap of high-power battery |
| CN102088064A (en) * | 2011-01-04 | 2011-06-08 | 无锡市金杨新型电源有限公司 | Novel battery cover cap structure |
| CN102244211A (en) * | 2010-05-14 | 2011-11-16 | 深圳市比克电池有限公司 | Cell cover cap combination and cylindrical secondary cell |
| CN102290542A (en) * | 2011-07-13 | 2011-12-21 | 无锡市金杨新型电源有限公司 | Low-resistance lithium ion battery cover cap |
| CN102364719A (en) * | 2011-11-11 | 2012-02-29 | 深圳市豪鹏科技有限公司 | Anti-explosion secondary battery |
| CN102779961A (en) * | 2012-08-20 | 2012-11-14 | 常州市武进中瑞电子有限公司 | Aluminium soldering integrating type-cylindrical aluminum shell battery anti-explosion combined cover plate |
| EP2482358A4 (en) * | 2010-10-21 | 2016-06-01 | Lg Chemical Ltd | CAP ASSEMBLY AND RECHARGEABLE BATTERY USING THE SAME |
| CN105651445A (en) * | 2016-03-17 | 2016-06-08 | 东莞市创明电池技术有限公司 | Battery cover plate detection equipment and detection method thereof |
| CN107667443A (en) * | 2015-06-05 | 2018-02-06 | 株式会社Lg化学 | Cap assembly for secondary battery |
| CN108565362A (en) * | 2017-12-13 | 2018-09-21 | 深圳市比克动力电池有限公司 | Cylindrical lithium ion battery cap and its manufacturing method |
| CN109461850A (en) * | 2018-09-14 | 2019-03-12 | 江苏海四达电源股份有限公司 | A kind of lithium ion battery cover and lithium ion battery |
| CN109962182A (en) * | 2017-12-22 | 2019-07-02 | 比亚迪股份有限公司 | Battery cover components, single cells, battery modules, power batteries and electric vehicles |
| CN110890489A (en) * | 2019-12-02 | 2020-03-17 | 无锡市金杨新材料股份有限公司 | A cap and lithium battery having the same |
| US12243756B2 (en) | 2014-02-07 | 2025-03-04 | Applied Materials, Inc. | Temperature controlled substrate support assembly |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236505A (en) * | 2013-04-28 | 2013-08-07 | 泰兴市振兴电子有限公司 | Power type lithium ion battery nut cap and welding process thereof |
| KR102781949B1 (en) * | 2019-04-01 | 2025-03-18 | 삼성에스디아이 주식회사 | Secondary battery |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI224881B (en) * | 2000-01-14 | 2004-12-01 | Sony Corp | Nonaqueous electrolyte solution secondary battery |
| JP2003187773A (en) * | 2001-12-17 | 2003-07-04 | Sony Corp | Sealed battery and welding method |
| JP4580699B2 (en) * | 2004-06-25 | 2010-11-17 | 株式会社東芝 | Nonaqueous electrolyte secondary battery |
| CN200972873Y (en) * | 2006-11-30 | 2007-11-07 | 天津力神电池股份有限公司 | Cylindrical lithium ion battery lid of preventing abnormal open |
| CN201017921Y (en) * | 2007-04-06 | 2008-02-06 | 天津力神电池股份有限公司 | Novel cylinder type lithium ion battery cover for preventing abnormal opening and leakage liquid |
| CN201435414Y (en) * | 2009-07-10 | 2010-03-31 | 杨学新 | Anti-explosion combined cover cap of cylindrical battery |
-
2009
- 2009-07-10 CN CN200920185751XU patent/CN201435414Y/en not_active Expired - Lifetime
-
2010
- 2010-07-12 WO PCT/CN2010/075104 patent/WO2011003367A1/en not_active Ceased
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011003367A1 (en) * | 2009-07-10 | 2011-01-13 | Yang Xuexin | Combined explosion-proof cover cap for cylindrical battery |
| CN102244211A (en) * | 2010-05-14 | 2011-11-16 | 深圳市比克电池有限公司 | Cell cover cap combination and cylindrical secondary cell |
| CN101916833A (en) * | 2010-08-20 | 2010-12-15 | 芜湖根源科技有限公司 | Explosion-proof cover cap of lithium battery |
| EP2482358A4 (en) * | 2010-10-21 | 2016-06-01 | Lg Chemical Ltd | CAP ASSEMBLY AND RECHARGEABLE BATTERY USING THE SAME |
| CN102005549A (en) * | 2010-10-27 | 2011-04-06 | 杨学新 | Explosion-proof combined cap of high-power battery |
| CN102088064A (en) * | 2011-01-04 | 2011-06-08 | 无锡市金杨新型电源有限公司 | Novel battery cover cap structure |
| CN102290542A (en) * | 2011-07-13 | 2011-12-21 | 无锡市金杨新型电源有限公司 | Low-resistance lithium ion battery cover cap |
| CN102290542B (en) * | 2011-07-13 | 2015-09-02 | 无锡市金杨新型电源有限公司 | Cap for low-resistance lithium ion battery |
| CN102364719B (en) * | 2011-11-11 | 2013-06-05 | 深圳市豪鹏科技有限公司 | Anti-explosion secondary battery |
| CN102364719A (en) * | 2011-11-11 | 2012-02-29 | 深圳市豪鹏科技有限公司 | Anti-explosion secondary battery |
| CN102779961A (en) * | 2012-08-20 | 2012-11-14 | 常州市武进中瑞电子有限公司 | Aluminium soldering integrating type-cylindrical aluminum shell battery anti-explosion combined cover plate |
| US12243756B2 (en) | 2014-02-07 | 2025-03-04 | Applied Materials, Inc. | Temperature controlled substrate support assembly |
| CN107667443B (en) * | 2015-06-05 | 2020-08-21 | 株式会社Lg化学 | Cap assembly for secondary battery |
| CN107667443A (en) * | 2015-06-05 | 2018-02-06 | 株式会社Lg化学 | Cap assembly for secondary battery |
| CN105651445A (en) * | 2016-03-17 | 2016-06-08 | 东莞市创明电池技术有限公司 | Battery cover plate detection equipment and detection method thereof |
| CN108565362A (en) * | 2017-12-13 | 2018-09-21 | 深圳市比克动力电池有限公司 | Cylindrical lithium ion battery cap and its manufacturing method |
| CN109962182A (en) * | 2017-12-22 | 2019-07-02 | 比亚迪股份有限公司 | Battery cover components, single cells, battery modules, power batteries and electric vehicles |
| CN109461850B (en) * | 2018-09-14 | 2021-08-20 | 江苏海四达电源股份有限公司 | Lithium ion battery cap and lithium ion battery |
| CN109461850A (en) * | 2018-09-14 | 2019-03-12 | 江苏海四达电源股份有限公司 | A kind of lithium ion battery cover and lithium ion battery |
| CN110890489A (en) * | 2019-12-02 | 2020-03-17 | 无锡市金杨新材料股份有限公司 | A cap and lithium battery having the same |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011003367A1 (en) | 2011-01-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Changzhou Wujin Zhongrui Electronics Co.,Ltd. Assignor: Yang Xuexin Contract record no.: 2012320000764 Denomination of utility model: Anti-explosion combined cover cap of cylindrical battery Granted publication date: 20100331 License type: Exclusive License Record date: 20120612 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Anti-explosion combined cover cap of cylindrical battery Effective date of registration: 20150213 Granted publication date: 20100331 Pledgee: Industrial Commercial Bank of China Ltd Changzhou branch Pledgor: Wujin Changzhou Sino Swiss Electronics Co., Ltd.|Yang Xuexin Registration number: 2015990000145 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20171211 Granted publication date: 20100331 Pledgee: Industrial Commercial Bank of China Ltd Changzhou branch Pledgor: Changzhou Wujin Zhongrui Electronics Co.,Ltd.|Yang Xuexin Registration number: 2015990000145 |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180209 Address after: 213164 Changzhou science and Education City, No. 801 middle Wu Road, Wujin District, Jiangsu, Changzhou Patentee after: Changzhou Wujin Zhongrui Electronics Co.,Ltd. Address before: 213000 Dong Xia Tong, Zhong Lou District, Changzhou, Jiangsu Province, No. 86 Patentee before: Yang Xuexin |
|
| 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: 213164 Changzhou science and Education City, Changwu Middle Road, Wujin District, Changzhou, Jiangsu, 801 Patentee before: Changzhou Wujin Zhongrui Electronics Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100331 |