CN203386547U - Integrated fixed external series gap self-disengaging metal oxide lightning arrester insulators - Google Patents
Integrated fixed external series gap self-disengaging metal oxide lightning arrester insulators Download PDFInfo
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- CN203386547U CN203386547U CN201320454109.3U CN201320454109U CN203386547U CN 203386547 U CN203386547 U CN 203386547U CN 201320454109 U CN201320454109 U CN 201320454109U CN 203386547 U CN203386547 U CN 203386547U
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- metal oxide
- oxide arrester
- insulator
- external series
- series gap
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- 229910044991 metal oxide Inorganic materials 0.000 title claims abstract description 61
- 150000004706 metal oxides Chemical class 0.000 title claims abstract description 61
- 239000012212 insulator Substances 0.000 title claims abstract description 39
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 239000004020 conductor Substances 0.000 claims description 20
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 17
- 239000010931 gold Substances 0.000 claims description 17
- 229910052737 gold Inorganic materials 0.000 claims description 17
- 238000004880 explosion Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- 230000003064 anti-oxidating effect Effects 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000012943 hotmelt Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 10
- 230000000903 blocking effect Effects 0.000 description 6
- 208000025274 Lightning injury Diseases 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910000743 fusible alloy Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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Abstract
The utility model discloses integrated fixed external series gap self-disengaging metal oxide lightning arrester insulators. A puncture wire clamping fitting is arranged at a top end of pillar insulators, a bottom end of the pillar insulators is fixed on a crossarm, an insulation lead is clamped by the puncture wire clamping fitting, a high voltage electrode arc rod and the puncture wire clamping fitting are connected, an insulation support and the high voltage electrode arc rod are parallel, the insulation support is respectively connected with the pillar insulators and a metal oxide lightning arrester, a top end of the metal oxide lightning arrester is provided with a half dome electrode, the half dome electrode and the high voltage electrode arc rod form a fixed external series discharging gap, a disconnector is connected in series with the metal oxide lightning arrester, and a grounding end of the disconnector and the crossarm are in grounding connection through a grounding lead. According to the integrated fixed external series gap self-disengaging metal oxide lightning arrester insulators, the metal oxide lightning arrester and the insulators are connected to integrate into one body, line cost is reduced, mounting steps are simplified, mounting efficiency is improved; the discharging gap is fixed, a plurality of thunder experiments are carried out for insulation matching, no adjustment is required during mounting.
Description
Technical field
The utility model relates to a kind of lightning-caused breaking protector of power distribution network 10kV suspended insulated guide wire, and in particular a kind of integrated fixedly external series gap is from breaking away from the metal oxide arrester insulator.
Background technology
In the middle of power distribution network, adopt insulated conductor to solve corridor and safety problem that plain conductor can't resolve, and reduced investment, construction are fast, but insulated conductor also have the weakness of himself, i.e. lightning-caused breaking problem, so-called thunderbolt must be broken.According to the insulated conductor breakage caused by lightning stroke theory, the corresponding precautionary measures have " leading-type " and " blocking type " two kinds of modes.So-called " leading-type " is exactly to allow insulated overhead line that certain lightning stroke flashover probability is arranged, and power frequency continued flow electric arc arc root transferred on special gold utensil and burnt, and reaches the purpose that guardwire avoids the electric arc burn broken string.The product occurred has arc-preventing metal utensil, Clamping insulator etc." leading-type " method is implemented simple, small investment, but can not reduce the lightning stroke trip number of times of circuit.So-called " blocking type " is exactly reduce circuit lightning stroke flashover probability, or the power frequency continued flow starting the arc after the prevention lightning stroke flashover, reaches the purpose that prevents insulated conductor burn broken string.Corresponding measure has the line insulation of reinforcement, sets up lightning conducter, reduces pole tower ground resistance, Transmission Line Arrestor etc. is installed.Compare " leading-type ", " blocking type " mode better protecting effect, shortcoming is the construction relative complex, cost is higher.
" blocking type " mode of utilization solves the lightning-caused breaking problem, and more satisfactory measure is that Transmission Line Arrestor is installed, and the product occurred has gapless metal-oxide lighting arrester, overvoltage protection device etc.The major defect that gapless metal-oxide lighting arrester exists in actual applications is: in the direct connection of lightning arrester body and power network, zinc oxide valve plate has to bear for a long time the power-frequency voltage effect, accelerated the degree of aging of valve block, its safe operating life is greatly limited, and directly is electrically connected to and also easily causes certain electric power accident hidden danger.The overvoltage protection device drawback of withstand long term exposure power-frequency voltage of having utilized the annular electrode external series gap to solve preferably; but in the situation that lightning arrester body damages; if now circuit suffers lightning overvoltage; after lightning impulse; power frequency continued flow can not get suppressing; by smooth combustion, insulated conductor still can scaling loss blow, and even can cause impaired Explosion of on Arrester.
For realizing when lightning-arrest the breaking down, the lightning arrester that Automatic-falling, disconnection damage, the Explosion of on Arrester of avoiding losing efficacy produces a large amount of blast splashes and hurts sb.'s feelings, take the lightning arrester structure as basis, in lightning arrester one end series connection external series gap hot melten type releasing mechanism, with the meltdown mode make the lightning arrester that damaged and power network automatic trip from.Chinese patent: 03213798.2 " alternating current external gap type automatic separate lightning guard ", and Chinese patent: 201100644513 " the combined serial gap is the lightning arrester of releasing mechanism " two kinds technical scheme has just realized this technical functionality.The clearance-type releasing mechanism consists of insulating support and the relative radius tip electrode of spacing, and radius tip electrode is manufactured by special fusible alloy material, and cost is higher, and the structure assembling parts is many and complicated, also therefore can increase many assembly operation steps.And lightning arrester uses as post insulator, when damaging, lightning arrester changes difficulty.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of integrated fixedly external series gap from breaking away from the metal oxide arrester insulator, not only play insulation and support the wire effect, and can make metal oxide arrester break away from the effect of electrical network power-frequency voltage, can make reliably the fault lightning arrester break away from operation.
The utility model is achieved through the following technical solutions, and the utility model comprises puncture clamp gold utensil, insulated conductor, high-field electrode starting rod, post insulator, insulating support, cross-arm, metal oxide arrester, disconnector and earth lead, described puncture clamp gold utensil is arranged at the top of post insulator, the bottom of post insulator is fixed on cross-arm, puncture clamp gold utensil clamping insulated conductor, the high-field electrode starting rod is connected with puncture clamp gold utensil, insulating support is parallel with the high-field electrode starting rod, insulating support is connecting struts insulator and metal oxide arrester respectively, the top of metal oxide arrester is provided with the semi-round ball electrode, semi-round ball electrode and high-field electrode starting rod form fixing outer series connection discharging gap, disconnector and metal oxide arrester serial connection, the earth terminal of disconnector is connected ground connection with cross-arm by earth lead.
Described puncture clamp gold utensil comprises insulating shield and is arranged at upper holder block, lower lock block, connector and the ratchet in insulating shield, upper holder block is arranged on lower lock block, upper holder block is connected by connector with lower lock block, ratchet is symmetricly set on upper holder block and lower lock block, the ratchet that is positioned at the ratchet on upper holder block and is positioned on lower lock block clamps respectively insulated conductor, lower lock block is connected to the top of post insulator, and the high-field electrode starting rod is connected with lower lock block.
Described connector comprises bolt and torque nut, and upper holder block and lower lock block are set in respectively on bolt, and torque nut revolves and is located on bolt.Adopt torque nut, thrust is balanced reliable, meets the requirement of electric current through-current capability, does not damage heart yearn simultaneously, guarantees that high voltage piercing electrode and heart yearn Long Term Contact are reliable.
Described ratchet is the four toothing stampings that copper alloy is made.Higher than intensity of aluminum alloy and toughness, electric conductivity is better.
Easy oxidation while considering the albronze transition, the thorn tooth surface is provided with antioxidation coating.
Described disconnector is connected in series with the lower end of metal oxide arrester by the screw-type external interface, realizes the reliable serial connection of disconnector and metal oxide arrester.
Described disconnector is hot melt or heat explosion type, and shock-resistant ability is strong, under 2ms square wave and 4/10 μ s heavy current impact, all is failure to actuate.
As one of optimal way of the present utility model, on described high-field electrode starting rod, coat insulating sleeve is set.
Described earth lead is copper multiply flexible conductor, and sectional area is greater than 10mm
2, make disconnector can freely move and form enough air gaps, so that lightning arrester and system that fault is damaged are reliably isolated.
After lightning voltage amplitude on insulated conductor surpasses gap discharge voltage, the series gap that high-field electrode starting rod and semi-round ball electrode form punctures.When metal oxide arrester works, disconnector is failure to actuate and is Low ESR, metal oxide arrester enters the Low ESR conducting state, play the restriction superpotential effect in post insulator two ends, after lightning impulse, system works voltage is added on metal oxide arrester, the metal oxide arrester momentary recovery is to the high impedance blocking state, power frequency continued flow is suppressed in very little scope can't build arc, the series gap insulation property are recovered rapidly, and metal oxide arrester and circuit return to normal operating condition; When metal oxide arrester damages inefficacy, the power frequency fault current is by disconnector, and disconnector is timely, accurate, action message, makes the fault metal oxide arrester break away from operation, and obvious disengaging sign is arranged, be convenient to the metal oxide arrester that the tour personnel find fault.
The utility model has the following advantages compared to existing technology:
(1) the utility model is connected lightning arrester to be integrated with insulator, has reduced line cost, has simplified installation steps, has improved installation effectiveness;
(2) discharging gap of the present utility model is fixed, and carries out insulation coordination by the experiment of a large amount of thunder and lightning, determines the discharging gap value, during installation without being regulated again;
(3) the utility model, due to the existence of air insulation clearance, makes metal oxide arrester break away from the electrical network power-frequency voltage, only has the natural aging problem, has greatly extended metal oxide arrester useful life;
(4) metal oxide arrester is when lightning-arrest the damage occurring, while single-phase arc grounding resonance overvoltage particularly occurring, the disconnector be connected between metal oxide arrester and cross-arm can make rapidly the fault metal oxide arrester break away from operation reliably, and provide clearly and to break away from sign, be convenient to the tour personnel and find the fault lightning arrester, for realizing metal oxide arrester " repair based on condition of component ", provide practicable technical measures;
(5) lightning arrester of the present utility model is installed, is dismantled simply, is convenient to carry out the replacing operation under system does not have a power failure.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the partial schematic diagram of puncture clamp gold utensil.
Embodiment
Below embodiment of the present utility model is elaborated; the present embodiment is implemented take technical solutions of the utility model under prerequisite; provided detailed execution mode and concrete operating process, but protection range of the present utility model is not limited to following embodiment.
As shown in Figure 1, the present embodiment comprises puncture clamp gold utensil 1, insulated conductor 2, high-field electrode starting rod 3, post insulator 4, insulating support 5, cross-arm 6, metal oxide arrester 7, disconnector 8 and earth lead 9, described puncture clamp gold utensil 1 is arranged at the top of post insulator 4, the bottom of post insulator 4 is fixed on cross-arm 6, puncture clamp gold utensil 1 clamping insulated conductor 2, high-field electrode starting rod 3 is connected with puncture clamp gold utensil 1, insulating support 5 is parallel with high-field electrode starting rod 3, insulating support 5 is connecting struts insulator 4 and metal oxide arrester 7 respectively, the top of metal oxide arrester 7 is provided with semi-round ball electrode 71, semi-round ball electrode 71 and high-field electrode starting rod 3 form fixing outer series connection discharging gap, disconnector 8 and metal oxide arrester 7 serial connections, the earth terminal of disconnector 8 is connected ground connection with cross-arm 6 by earth lead 9.Coat insulating sleeve 31 is set on described high-field electrode starting rod 3.
As shown in Figure 2, puncture clamp gold utensil 1 comprises insulating shield 11 and is arranged at upper holder block 12, lower lock block 13, connector and the ratchet 14 in insulating shield 11, upper holder block 12 is arranged on lower lock block 13, upper holder block 12 is connected by connector with lower lock block 13, ratchet 14 is symmetricly set on upper holder block 12 and lower lock block 13, be positioned at the ratchet 14 on upper holder block 12 and the ratchet 14 be positioned on lower lock block 13 and clamp respectively insulated conductor 2, lower lock block 13 is connected to the top of post insulator 4, and high-field electrode starting rod 3 is connected with lower lock block 13.
Described connector comprises bolt 15 and torque nut 16, and upper holder block 12 and lower lock block 13 are set in respectively on bolt 15, and torque nut 16 revolves and is located on bolt 15.Adopt torque nut 16, thrust is balanced reliable, meets the requirement of electric current through-current capability, does not damage heart yearn simultaneously, guarantees that high voltage piercing electrode and heart yearn Long Term Contact are reliable.
The four toothing stampings that described ratchet 14 is made for copper alloy.Stamping is thin slender shape, and the shape of cognate point is higher than intensity of aluminum alloy and toughness, electric conductivity is better.Easy oxidation while considering the albronze transition, ratchet 14 surfaces are provided with antioxidation coating.
Described disconnector 8 is connected in series with the lower end of metal oxide arrester 7 by the screw-type external interface, realizes the reliable serial connection of disconnector 8 and metal oxide arrester 7.
Described disconnector 8 is heat explosion type, and shock-resistant ability is strong, under 2ms square wave and 4/10 μ s heavy current impact, all is failure to actuate.
Described earth lead 9 is copper multiply flexible conductor, and sectional area is greater than 10mm
2, make disconnector 8 can freely move and form enough air gaps, so that lightning arrester and system that fault is damaged are reliably isolated.
During the present embodiment work, after the lightning voltage amplitude on insulated conductor 2 surpasses gap discharge voltage, the series gap that high-field electrode starting rod 3 and semi-round ball electrode 71 form punctures.When metal oxide arrester 7 normal operation, disconnector 8 is failure to actuate and is Low ESR, metal oxide arrester 7 enters the Low ESR conducting state, play the 4 superpotential effects in two ends of restriction post insulator, after lightning impulse, system works voltage is added on metal oxide arrester 7, metal oxide arrester 7 momentary recoveries are to the high impedance blocking state, power frequency continued flow is suppressed in very little scope can't build arc, the series gap insulation property are recovered rapidly, and metal oxide arrester 7 and circuit return to normal operating condition; When metal oxide arrester 7 damages inefficacy, the power frequency fault current is by disconnector 8, and disconnector 8 is timely, accurate, action message, makes fault metal oxide arrester 7 break away from operation, and obvious disengaging sign is arranged, be convenient to the metal oxide arrester 7 that the tour personnel find fault.
Claims (9)
1. an integrated fixedly external series gap is from breaking away from the metal oxide arrester insulator, it is characterized in that, comprise puncture clamp gold utensil (1), insulated conductor (2), high-field electrode starting rod (3), post insulator (4), insulating support (5), cross-arm (6), metal oxide arrester (7), disconnector (8) and earth lead (9), described puncture clamp gold utensil (1) is arranged at the top of post insulator (4), the bottom of post insulator (4) is fixed on cross-arm (6), puncture clamp gold utensil (1) clamping insulated conductor (2), high-field electrode starting rod (3) is connected with puncture clamp gold utensil (1), insulating support (5) is parallel with high-field electrode starting rod (3), insulating support (5) is connecting struts insulator (4) and metal oxide arrester (7) respectively, the top of metal oxide arrester (7) is provided with semi-round ball electrode (71), semi-round ball electrode (71) and high-field electrode starting rod (3) form fixing outer series connection discharging gap, disconnector (8) and metal oxide arrester (7) serial connection, the earth terminal of disconnector (8) is connected ground connection with cross-arm (6) by earth lead (9).
2. integrated fixedly external series gap according to claim 1 is from breaking away from the metal oxide arrester insulator, it is characterized in that, described puncture clamp gold utensil (1) comprises insulating shield (11) and is arranged at the upper holder block (12) in insulating shield (11), lower lock block (13), connector and ratchet (14), upper holder block (12) is arranged on lower lock block (13), upper holder block (12) is connected by connector with lower lock block (13), ratchet (14) is symmetricly set on upper holder block (12) and lower lock block (13), the ratchet (14) that is positioned at the ratchet (14) on upper holder block (12) and is positioned on lower lock block (13) clamps respectively insulated conductor (2), lower lock block (13) is connected to the top of post insulator (4), high-field electrode starting rod (3) is connected with lower lock block (13).
3. integrated fixedly external series gap according to claim 2 is from breaking away from the metal oxide arrester insulator, it is characterized in that, described connector comprises bolt (15) and torque nut (16), it is upper that upper holder block (12) and lower lock block (13) are set in respectively bolt (15), and torque nut (16) revolves and is located on bolt (15).
4. integrated fixedly external series gap according to claim 2, from breaking away from the metal oxide arrester insulator, is characterized in that the four toothing stampings that described ratchet (14) is made for copper alloy.
5. integrated fixedly external series gap according to claim 4, from breaking away from the metal oxide arrester insulator, is characterized in that, described ratchet (14) surface is provided with antioxidation coating.
6. integrated fixedly external series gap according to claim 1, from breaking away from the metal oxide arrester insulator, is characterized in that, described disconnector (8) is connected in series with the lower end of metal oxide arrester (7) by the screw-type external interface.
7. integrated fixedly external series gap according to claim 1, from breaking away from the metal oxide arrester insulator, is characterized in that, described disconnector (8) is hot melt or heat explosion type.
8. integrated fixedly external series gap according to claim 1, from breaking away from the metal oxide arrester insulator, is characterized in that, the upper coating of described high-field electrode starting rod (3) arranges insulating sleeve (31).
9. integrated fixedly external series gap according to claim 1, from breaking away from the metal oxide arrester insulator, is characterized in that, described earth lead (9) is copper multiply flexible conductor, and sectional area is greater than 10mm
2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320454109.3U CN203386547U (en) | 2013-07-29 | 2013-07-29 | Integrated fixed external series gap self-disengaging metal oxide lightning arrester insulators |
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|---|---|---|---|
| CN201320454109.3U CN203386547U (en) | 2013-07-29 | 2013-07-29 | Integrated fixed external series gap self-disengaging metal oxide lightning arrester insulators |
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| CN203386547U true CN203386547U (en) | 2014-01-08 |
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| CN201320454109.3U Expired - Fee Related CN203386547U (en) | 2013-07-29 | 2013-07-29 | Integrated fixed external series gap self-disengaging metal oxide lightning arrester insulators |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871694A (en) * | 2014-03-31 | 2014-06-18 | 刘进生 | Anti-thunder insulator with transparent insulation safety cover and integrated grounding ring |
| CN105790202A (en) * | 2016-05-04 | 2016-07-20 | 杭州飞翔电力电器有限公司 | Overvoltage protector used for power transmission tower |
| CN106981346A (en) * | 2017-04-14 | 2017-07-25 | 山东莱芜电瓷有限公司 | A kind of fixed interval (FI) Zinc-Oxide Arrester |
| CN108630360A (en) * | 2017-03-23 | 2018-10-09 | 深圳康普盾科技股份有限公司 | A kind of indicating fault lightning protection device |
| CN109473243A (en) * | 2018-08-16 | 2019-03-15 | 国网浙江省电力有限公司金华供电公司 | A kind of annular dropout type tape jam indicator type Zinc-Oxide Arrester |
| CN110707533A (en) * | 2019-09-28 | 2020-01-17 | 吴文广 | Lightning arrester for electric power iron tower |
| AU2020289726B1 (en) * | 2020-05-25 | 2021-08-05 | State Grid Corporation Of China | Insulator for preventing lightning-caused breaking and personal electric shock |
-
2013
- 2013-07-29 CN CN201320454109.3U patent/CN203386547U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871694A (en) * | 2014-03-31 | 2014-06-18 | 刘进生 | Anti-thunder insulator with transparent insulation safety cover and integrated grounding ring |
| CN103871694B (en) * | 2014-03-31 | 2016-06-15 | 刘进生 | Anti-thunder insulator with transparent insulation safety guard and Integral grounding ring |
| CN105790202A (en) * | 2016-05-04 | 2016-07-20 | 杭州飞翔电力电器有限公司 | Overvoltage protector used for power transmission tower |
| CN108630360A (en) * | 2017-03-23 | 2018-10-09 | 深圳康普盾科技股份有限公司 | A kind of indicating fault lightning protection device |
| CN106981346A (en) * | 2017-04-14 | 2017-07-25 | 山东莱芜电瓷有限公司 | A kind of fixed interval (FI) Zinc-Oxide Arrester |
| CN109473243A (en) * | 2018-08-16 | 2019-03-15 | 国网浙江省电力有限公司金华供电公司 | A kind of annular dropout type tape jam indicator type Zinc-Oxide Arrester |
| CN110707533A (en) * | 2019-09-28 | 2020-01-17 | 吴文广 | Lightning arrester for electric power iron tower |
| AU2020289726B1 (en) * | 2020-05-25 | 2021-08-05 | State Grid Corporation Of China | Insulator for preventing lightning-caused breaking and personal electric shock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20150729 |
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| EXPY | Termination of patent right or utility model |