CN2798388Y - Electric source signal combined lightning protector - Google Patents
Electric source signal combined lightning protector Download PDFInfo
- Publication number
- CN2798388Y CN2798388Y CN 200520034262 CN200520034262U CN2798388Y CN 2798388 Y CN2798388 Y CN 2798388Y CN 200520034262 CN200520034262 CN 200520034262 CN 200520034262 U CN200520034262 U CN 200520034262U CN 2798388 Y CN2798388 Y CN 2798388Y
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- arrester
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- 230000001012 protector Effects 0.000 title abstract 5
- 238000013021 overheating Methods 0.000 claims description 27
- 230000001681 protective effect Effects 0.000 claims description 18
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000004382 potting Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000499 gel Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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Abstract
The utility model relates to an electric source and signal combined lightning protector which comprises an electric source lightning protector and a signal lightning protector, wherein the input end of the electric source lightning protector is connected with an electric network through a power cord with the output end connected with the electric source input end of protected communication equipment through the power cord. The input end of the signal lightning arrester is connected with a signal source through a signal input wire, and the output end of the signal lightning arrester is connected with the signal input end of the protected communication equipment through a signal output wire. The grounding wires of the electric source lightening arrester, the signal lightning arrester and the protected communication equipment are all connected to an equipotential connection point which is grounded through a shared grounding wire, and the electric source lightening arrester, the signal lightning arrester and the equipotential connection point are installed in a sealed type metal machine case. The lightning arrester centralizes power supply protection and signal protection into integration, and equipotential connection is realized in the combined lightning arrester, which effectively solves the problem that a non-common ground lightning arrester can not effectively protect protected device.
Description
Technical field
The utility model belongs to the lightning arrester that communication apparatus uses, and particularly a kind of current collection source protection, signal protection are power supply, the signal combination lightning arrester of one.
Background technology
At present, communication apparatus great majority are for existing power supply, have a unit equipment of signal again, and lightning arrester mostly is the monomer protection type, promptly can only protect the power supply of communication apparatus maybe can only protect the signal transmitting apparatus of communication apparatus.If the communication apparatus configuration is more, use monomer protection type lightning arrester to have following problem: each lightning arrester is ground connection respectively, and the earth potential counterattack that multipoint earthing brings causes lightning arrester can not protect protected equipment effectively; Many, complex structure connects up.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and it is power supply, the signal combination lightning arrester of one that a kind of current collection source protection, signal protection are provided, so that more effectively protect communication apparatus and reduce wiring.
Power supply described in the utility model, signal combination lightning arrester comprise power arrester and signal lightning arrester, the input of power arrester is connected with electrical network by power line, its output is connected with the power input of protected communication apparatus by power line, the input of signal lightning arrester is connected with signal source by signal input line, and its output is connected with the signal input part of protected communication apparatus by output line; The earth connection of power arrester, signal lightning arrester and protected communication apparatus all is connected equipotential tie point place, and the equipotential tie point is by shared grounding line ground connection.
Power arrester, signal lightning arrester and equipotential tie point are installed in the cabinet, and this cabinet is a closed type metal cabinet.
The structure of power arrester: power arrester is made up of lightning protection circuit and indicating circuit, and indicating circuit is connected with lightning protection circuit, detects and show the operating state of lightning protection circuit.Lightning protection circuit is divided into two-stage, adopts 10 piezo-resistance RV, 20 temperature overheatings to break away from fuse FU, 1 gas discharge tube V and be composed in series between first order lightning protection circuit L-PE, N-PE, the L-N respectively; Adopt 1 piezo-resistance RV, 2 temperature overheatings to break away from fuse FU, 1 gas discharge tube V and be composed in series between second level lightning protection circuit L-PE, N-PE, the L-N respectively; 1 decoupling of having connected respectively between the last first order of L-N and the second level is isolated inductor L.Indicating circuit comprises power indicating circuit and inefficacy indicating circuit, and power indicating circuit is in parallel with the inefficacy indicating circuit; Power indicating circuit is by resistance R 1, diode VD1, VD2, and light-emitting diode HL1 forms; The inefficacy indicating circuit is by resistance R 2, R3, diode VD3, and light-emitting diode HL2, temperature alarm Thermal Cutoffs FU67-FU84 forms.The assembling mode that piezo-resistance in the first order lightning protection circuit, temperature overheating break away from the temperature alarm Thermal Cutoffs in fuse and the inefficacy indicating circuit is: two piezo-resistances, 4 temperature overheating disengaging fuses, 1 temperature alarm Thermal Cutoffs are combined and are wrapped up with the pyrocondensation conduit, are coated with the high-termal conductivity potting compound between piezo-resistance and the fuse.The assembling mode that piezo-resistance in the lightning protection circuit of the second level, temperature overheating break away from the temperature alarm Thermal Cutoffs in fuse and the inefficacy indicating circuit is: 1 piezo-resistance, 2 temperature overheating disengaging fuses, 1 temperature alarm Thermal Cutoffs are combined and are wrapped up with the pyrocondensation conduit, are coated with the high-termal conductivity potting compound between piezo-resistance and the fuse.
The structure of signal lightning arrester: the signal lightning arrester is provided with two groups of lightning protection unit circuit (the several signals according to protected communication apparatus of the group of lightning protection unit circuit are to being provided with) at least, and every group of lightning protection unit circuit contains thick protective circuit and thin protective circuit.Thick protective circuit in the lightning protection unit circuit adopts 1 three utmost point gas discharge tube V; three electrodes of three utmost point gas discharge tubes are connected with earth connection PE with holding wire L1, L2 respectively; thin protective circuit adopts three piezo-resistance RV; three piezo-resistances form clamper with holding wire L1, L2 and earth connection PE and are connected, thick protective circuit with carefully be connected in series 2 wire-wound resistor decouplings between the protective circuit.
The parameter index of power supply described in the utility model, signal combination lightning arrester:
1, the lightning-arrest part of power supply
The maximum continuous operating voltage of protected communication apparatus is AC385V; Having nominal discharge current is that 20kA, maximum discharge current are the thunder and lightning relieving capacity of 50kA; Lightning current is released the time less than 25ns; Deboost is less than 1200V.
2, the lightning-arrest part of signal
The signal maximum transmission rate is 2Mbit/s; Having nominal discharge current is that 5kA, maximum discharge current are the thunder and lightning relieving capacity of 10kA; Deboost is less than 300V.
The utlity model has following beneficial effect:
1, current collection source protection, signal protection are one; power protection ground, signal protection ground, all be connected to the equipotential tie point of combined arrester to equipment protection; realize in combined arrester that equipotential is connected, effectively solved not the problem that lightning arrester altogether can not be protected protected equipment effectively.
2, the equipotential tie point has reduced wiring by shared grounding line ground connection, and easy-to-connect is installed.
3, the structure of power arrester makes characteristics such as power lightning protection has partly that discharging current is big, deboost is low, overheated, overcurrent disengaging.
4, the piezo-resistance in the power arrester lightning protection circuit, temperature overheating break away from the assembling mode of the temperature alarm Thermal Cutoffs in fuse and the inefficacy indicating circuit, can prevent the lightning arrester burning, improve fail safe.
5, not only circuit structure is simple for the signal lightning arrester, and the thunder and lightning discharge capacity is big, the signal transmission rate height, and the signal transmission is reliable, can guarantee the communication apparatus operate as normal.
6, closed type metal cabinet has functions such as rainproof, dustproof, anticorrosion, fire-retardant, electromagnetic shielding, and aesthetic in appearance, is convenient to install wiring.
Description of drawings
Fig. 1 is a kind of block diagram of power supply described in the utility model, signal combination lightning arrester;
Fig. 2 is a kind of block diagram of power arrester;
Fig. 3 is a kind of circuit theory diagrams of power supply described in the utility model, signal combination lightning arrester;
Fig. 4 is that piezo-resistance, the temperature overheating in the power arrester first order lightning protection circuit breaks away from a kind of assembling mode figure of the temperature alarm Thermal Cutoffs in fuse and the inefficacy indicating circuit;
Fig. 5 is that piezo-resistance, the temperature overheating in the lightning protection circuit of the power arrester second level breaks away from a kind of assembling mode figure of the temperature alarm Thermal Cutoffs in fuse and the inefficacy indicating circuit;
Fig. 6 is a kind of structure chart that cabinet is in opening, has shown power arrester and the mounting means of signal lightning arrester in cabinet;
Fig. 7 is a kind of structure chart that cabinet is in closed condition, has shown the profile of cabinet.
Among the figure, 1-signal input line, 2-power line, 3-power arrester, 4-signal lightning arrester, 5-power line, 6-output line, 7-equipotential tie point, 8-shared grounding line, 9-lightning protection circuit, 10-indicating circuit, 11-piezo-resistance, 12-temperature alarm Thermal Cutoffs, 13-temperature overheating break away from fuse, 14-high-termal conductivity potting compound, 15-pyrocondensation conduit, 16-cabinet.
Embodiment
Also in conjunction with the accompanying drawings the structure of power supply described in the utility model, signal combination lightning arrester is described further below by embodiment.
As shown in Figure 1, described power supply, signal combination lightning arrester comprise power arrester 3 and signal lightning arrester 4, the input of power arrester is connected with electrical network by power line 2, its output is connected with the power input of protected communication apparatus by power line 5, the input of signal lightning arrester is connected with signal source by signal input line 1, and its output is connected with the signal input part of protected communication apparatus by output line 6; The earth connection of power arrester 3, signal lightning arrester 4 and protected communication apparatus all is connected equipotential tie point 7 places, and the equipotential tie point is by shared grounding line 8 ground connection.
As shown in Figure 2, power arrester 3 is made up of lightning protection circuit 9 and indicating circuit 10, and indicating circuit is connected with lightning protection circuit, detects and show the operating state of lightning protection circuit.
Fig. 3 is a kind of circuit theory diagrams of power supply described in the utility model, signal combination lightning arrester, this Figure illustrates the particular circuit configurations of power arrester 3 and signal lightning arrester 4.The lightning protection circuit 9 of power arrester is divided into two-stage; Adopt 10 20D561K type piezo-resistance RV1-RV10 that nominal discharge current is 5KA between the first order lightning protection circuit L-PE, 20 temperature overheatings break away from fuse FU1-FU20,1 500XVE type gas discharge tube V1 is connected in series, adopt 10 20D561K type piezo-resistance RV11-RV20 that nominal discharge current is 5KA between the N-PE, 20 temperature overheatings break away from fuse FU21-FU40,1 500XVE type gas discharge tube V2 is connected in series, and adopts 10 20D561K type piezo-resistance RV21-RV30 that nominal discharge current is 5KA between the L-N, 20 temperature overheatings break away from fuse FU41-FU60,1 500XVE type gas discharge tube V3 is connected in series; Adopt 1 20D561K type piezo-resistance RV31 that nominal discharge current is 5KA between the lightning protection circuit L-PE of the second level, 2 temperature overheatings break away from fuse FU61-62,1 R358XMA type gas discharge tube V4 is connected in series, adopt 1 20D561K type piezo-resistance RV32 that nominal discharge current is 5KA between the N-PE, 2 temperature overheatings break away from fuse FU63-64,1 R358XMA type gas discharge tube V5 is connected in series, and adopts 1 20D561K type piezo-resistance RV33 that nominal discharge current is 5KA between the L-N, 2 temperature overheatings break away from fuse FU65-66,1 R358XMA type gas discharge tube V6 is connected in series; The decoupling of 1 22 μ H of having connected respectively between the last first order of L-N and the second level is isolated inductor L1, L2.Indicating circuit 10 comprises power indicating circuit and inefficacy indicating circuit, power indicating circuit is in parallel with the inefficacy indicating circuit, power indicating circuit is by 200k Ω resistance R 1,1N4007 type diode VD1, VD2, light-emitting diode HL1 forms, and the inefficacy indicating circuit is by 200k Ω resistance R 2,100k Ω resistance R 3,1N4007 type diode VD3, light-emitting diode HL2, temperature alarm Thermal Cutoffs FU67-FU84 is composed in series.Signal lightning arrester 4 is provided with the lightning protection unit circuit of four groups of parallel connections, and every group of lightning protection unit circuit contains thick protective circuit and thin protective circuit; Its thick protective circuit adopts 1 3R237CXA type three utmost point gas discharge tube V, and three electrodes of three utmost point gas discharge tubes are connected with earth connection PE with holding wire L1, L2 respectively; Its thin protective circuit adopts three 10D151K type piezo-resistance RV, and three piezo-resistances form clamper with holding wire L1, L2 and earth connection PE and are connected; Thick protective circuit with carefully be connected in series 2 2.2 Ω wire-wound resistor decouplings between the protective circuit.
As shown in Figure 4, the assembling mode that piezo-resistance in the first order lightning protection circuit of power arrester 3, temperature overheating break away from the temperature alarm Thermal Cutoffs in fuse and the inefficacy indicating circuit is: 13,1 temperature overheating alarm temperature fuse 12 of 11,4 temperature overheatings disengaging fuses of two piezo-resistances is combined and is wrapped up with pyrocondensation conduit 15, is coated with high-termal conductivity embedding coating between piezo-resistance and the fuse---two component heat conductive silica gels 14.
As shown in Figure 5, the assembling mode that piezo-resistance in the second level lightning protection circuit of power arrester 3, temperature overheating break away from the temperature alarm Thermal Cutoffs in fuse and the inefficacy indicating circuit is: 13,1 temperature alarm Thermal Cutoffs 12 of 11,2 temperature overheatings disengaging fuses of 1 piezo-resistance is combined and is wrapped up with pyrocondensation conduit 15, is coated with high-termal conductivity embedding coating between piezo-resistance and the fuse---two component heat conductive silica gels 14.
The shape of cabinet 16 and structure such as Fig. 6, shown in Figure 7, the profile box body shape that is rectangle, lid and box body are hinged, are made by metal material, and power arrester 3, signal lightning arrester 4 and equipotential tie point 7 are installed in the cabinet 16.
Claims (7)
1, a kind of power supply, signal combination lightning arrester; comprise power arrester (3); it is characterized in that also comprising signal lightning arrester (4); the input of power arrester is connected with electrical network by power line (2); its output is connected with the power input of protected communication apparatus by power line (5); the input of signal lightning arrester is connected with signal source by signal input line (1), and its output is connected with the signal input part of protected communication apparatus by output line (6)
The earth connection of power arrester (3), signal lightning arrester (4) and protected communication apparatus all is connected equipotential tie point (7) and locates, and the equipotential tie point is by shared grounding line (8) ground connection.
2, power supply according to claim 1, signal combination lightning arrester is characterized in that power arrester (3), signal lightning arrester (4) and equipotential tie point (7) are installed in the cabinet (16).
3, power supply according to claim 1 and 2, signal combination lightning arrester is characterized in that power arrester (3) is made up of lightning protection circuit (9) and indicating circuit (10), and indicating circuit is connected with lightning protection circuit, detect and show the operating state of lightning protection circuit.
4, power supply according to claim 3, the signal combination lightning arrester, the lightning protection circuit (9) that it is characterized in that power arrester is divided into two-stage, first order lightning protection circuit L-PE, N-PE, adopt 10 piezo-resistance RV between the L-N respectively, 20 temperature overheatings break away from fuse FU, 1 gas discharge tube V is composed in series, second level lightning protection circuit L-PE, N-PE, adopt 1 piezo-resistance RV between the L-N respectively, 2 temperature overheatings break away from fuse FU, 1 gas discharge tube V is composed in series, 1 decoupling of having connected respectively between the last first order of L-N and the second level is isolated inductor L
Indicating circuit (10) comprises power indicating circuit and inefficacy indicating circuit, power indicating circuit is in parallel with the inefficacy indicating circuit, power indicating circuit is by resistance R 1, diode VD1, VD2, light-emitting diode HL1 forms, and the inefficacy indicating circuit is by resistance R 2, R3, diode VD3, light-emitting diode HL2, temperature alarm Thermal Cutoffs FU67-FU84 forms.
5, power supply according to claim 4, the signal combination lightning arrester, it is characterized in that the piezo-resistance in the first order lightning protection circuit, the assembling mode that temperature overheating breaks away from the temperature alarm Thermal Cutoffs in fuse and the inefficacy indicating circuit is: two piezo-resistances (11), 4 temperature overheatings break away from fuse (13), 1 temperature alarm Thermal Cutoffs (12) is combined and is wrapped up with pyrocondensation conduit (15), be coated with high-termal conductivity potting compound (14) between piezo-resistance and the fuse
The assembling mode that piezo-resistance in the lightning protection circuit of the second level, temperature overheating break away from the temperature alarm Thermal Cutoffs in fuse and the inefficacy indicating circuit is: 1 piezo-resistance (11), 2 temperature overheatings break away from fuse (13), 1 temperature alarm Thermal Cutoffs (12) is combined and with pyrocondensation conduit (15) parcel, are coated with high-termal conductivity potting compound (14) between piezo-resistance and the fuse.
6, power supply according to claim 1 and 2, signal combination lightning arrester is characterized in that signal lightning arrester (4) is provided with two groups of lightning protection unit circuit at least, and every group of lightning protection unit circuit contains thick protective circuit and thin protective circuit.
7, power supply according to claim 6, signal combination lightning arrester; it is characterized in that the thick protective circuit in the lightning protection unit circuit adopts 1 three utmost point gas discharge tube V; three electrodes of three utmost point gas discharge tubes are connected with earth connection PE with holding wire L1, L2 respectively; thin protective circuit adopts three piezo-resistance RV; three piezo-resistances form clamper with holding wire L1, L2 and earth connection PE and are connected, thick protective circuit with carefully be connected in series 2 wire-wound resistor decouplings between the protective circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520034262 CN2798388Y (en) | 2005-05-24 | 2005-05-24 | Electric source signal combined lightning protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520034262 CN2798388Y (en) | 2005-05-24 | 2005-05-24 | Electric source signal combined lightning protector |
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| Publication Number | Publication Date |
|---|---|
| CN2798388Y true CN2798388Y (en) | 2006-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520034262 Expired - Lifetime CN2798388Y (en) | 2005-05-24 | 2005-05-24 | Electric source signal combined lightning protector |
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| CN (1) | CN2798388Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761118A (en) * | 2012-07-27 | 2012-10-31 | 中国电信集团浙江省电信公司 | Lightning protection method and lightning protection device of ground-connection-free communication device with equipotential connection |
| CN102767995A (en) * | 2011-05-05 | 2012-11-07 | 余明友 | Motor-driven switching type lightning protection equipment and lightning protection method for electric cables of ground-to-air guided missile weapon system |
| CN102916418A (en) * | 2012-10-25 | 2013-02-06 | 深圳市雷博斯科技有限公司 | Lightning protection and alarm structure |
| CN103003706A (en) * | 2010-12-28 | 2013-03-27 | 株式会社成真Techwin | Device and method for displaying the lifecycle of a surge protection device |
| CN103683261A (en) * | 2013-12-30 | 2014-03-26 | 山东兆宇电子技术有限公司 | Optical transceiver equipotential arrester |
| CN104332982A (en) * | 2014-11-25 | 2015-02-04 | 国家电网公司 | Lightning protection system |
| CN104360210A (en) * | 2014-12-10 | 2015-02-18 | 衡阳泰豪通信车辆有限公司 | Shielded box capable of carrying out lightning arrester detection |
| CN104466937A (en) * | 2014-12-03 | 2015-03-25 | 国家电网公司 | Surge interference resisting protector based on electricity meter reading system |
| CN110971115A (en) * | 2018-09-29 | 2020-04-07 | 中兴通讯股份有限公司 | Lightning surge protection circuit, method and system, storage medium and electronic device |
-
2005
- 2005-05-24 CN CN 200520034262 patent/CN2798388Y/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103003706A (en) * | 2010-12-28 | 2013-03-27 | 株式会社成真Techwin | Device and method for displaying the lifecycle of a surge protection device |
| CN102767995A (en) * | 2011-05-05 | 2012-11-07 | 余明友 | Motor-driven switching type lightning protection equipment and lightning protection method for electric cables of ground-to-air guided missile weapon system |
| CN102761118B (en) * | 2012-07-27 | 2015-09-16 | 中国电信集团浙江省电信公司 | A kind of lightning protection method and apparatus of exempting from ground connection communicator of equipotential link |
| CN102761118A (en) * | 2012-07-27 | 2012-10-31 | 中国电信集团浙江省电信公司 | Lightning protection method and lightning protection device of ground-connection-free communication device with equipotential connection |
| CN102916418A (en) * | 2012-10-25 | 2013-02-06 | 深圳市雷博斯科技有限公司 | Lightning protection and alarm structure |
| CN103683261A (en) * | 2013-12-30 | 2014-03-26 | 山东兆宇电子技术有限公司 | Optical transceiver equipotential arrester |
| CN104332982B (en) * | 2014-11-25 | 2017-12-19 | 国家电网公司 | A kind of lightning protection protective system |
| CN104332982A (en) * | 2014-11-25 | 2015-02-04 | 国家电网公司 | Lightning protection system |
| CN104466937A (en) * | 2014-12-03 | 2015-03-25 | 国家电网公司 | Surge interference resisting protector based on electricity meter reading system |
| CN104360210A (en) * | 2014-12-10 | 2015-02-18 | 衡阳泰豪通信车辆有限公司 | Shielded box capable of carrying out lightning arrester detection |
| CN110971115A (en) * | 2018-09-29 | 2020-04-07 | 中兴通讯股份有限公司 | Lightning surge protection circuit, method and system, storage medium and electronic device |
| EP3859959A4 (en) * | 2018-09-29 | 2022-07-13 | ZTE Corporation | Lightning surge protection circuit, method and system, and storage medium and electronic apparatus |
| CN110971115B (en) * | 2018-09-29 | 2023-08-29 | 中兴通讯股份有限公司 | Lightning surge protection circuit, method, system, storage medium and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SICHUAN ZHONGGUANG LIGHTNING PROTECTION TECHNOLOGY Free format text: FORMER OWNER: ZHONGGUANG HIGH TECH INST., CO., LTD., SICHUAN Effective date: 20110110 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 610023 GROUP 2, BAOJIANGQIAO, CHENGDU CITY, SICHUAN PROVINCE TO: 611731 NO.19, TIANYU ROAD, WESTERN PARK, HIGH-TECH. ZONE, CHENGDU CITY, SICHUAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110110 Address after: Tianyu Chengdu road 611731, Sichuan province high tech Zone West Park No. 19 Patentee after: Sichuan Zhongguang Lightning Protection Technologies Co., Ltd. Address before: 610023 Jiangqiao two packs, Sichuan, Chengdu Patentee before: Zhongguang High Tech Inst., Co., Ltd., Sichuan |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150524 Granted publication date: 20060719 |