CN203589720U - LED optical engine lightning protection apparatus - Google Patents
LED optical engine lightning protection apparatus Download PDFInfo
- Publication number
- CN203589720U CN203589720U CN201320664324.6U CN201320664324U CN203589720U CN 203589720 U CN203589720 U CN 203589720U CN 201320664324 U CN201320664324 U CN 201320664324U CN 203589720 U CN203589720 U CN 203589720U
- Authority
- CN
- China
- Prior art keywords
- resistance
- piezo
- gas discharge
- discharge tube
- live wire
- 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
- 230000003287 optical effect Effects 0.000 title abstract 3
- 229910044991 metal oxide Inorganic materials 0.000 claims description 11
- 150000004706 metal oxides Chemical class 0.000 claims description 11
- 239000007789 gas Substances 0.000 description 25
- 230000001681 protective effect Effects 0.000 description 5
- 230000001012 protector Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000001052 transient effect Effects 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009993 protective function 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
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to a lightning protection apparatus and resolves a technical problem to provide an LED optical engine lightning protection apparatus. A technical scheme used by the technical problem resolved by the utility model is that the input end of a live wire is connected with the output end of the live wire via a first inductor; that the input end of a null line is connected with the output end of the null line via a second inductor; that one end of a first varistor is connected with the input end of the live wire; that the other end of the first varistor is connected with one end of a first gas discharge tube, that another end of the first gas discharge tube is connected with one end of a second varistor; that the other end of the second varistor is connected with the input end of the null line; that a third end of the first gas discharge tube is connected with the input end of a ground wire; that one end of a third varistor is connected with the input end of the live wire; that the other end of the third varistor is connected with the input end of the null line via a second gas discharge tube; that one end of a fourth varistor is connected with the output end of the live wire; and that the other end of the fourth varistor is connected with the output end of the null line via third gas discharge tube. The LED optical engine lightning protection apparatus is suitable for LED lighting lamps.
Description
Technical field
The utility model relates to a kind of lightning protection device, especially relates to a kind of lightning protection module of LED photo engine.
Background technology
At present, whole illuminating industry had not both had a set of complete thunder-strike prevention standard, for lighting product, did not make special lightning protection protection yet.And in lightning protection industry, for power supply part, also only only have the B level/C level protection to three-phase, single-phase alternating current, and the protection of C level cannot be accomplished to low residual voltage, zero afterflow, cannot meet the perfect lightning protection for photo engine.
Particularly; B level lightning protection module in lightning protection industry is the lightning protection module that need to install in positions such as building (section) inlet side distribution box, distribution boards; be used for being struck by lightning LPZOA district (the non-guard plot of direct lightning strike) or LPZOB district (direct lightning strike guard plot) and interface, district, LPZ1 district (the first guard plot), be arranged on buried poling inlet wire low pressure main distribution cabinet place conventionally.C level lightning protection module is the lightning protection module that need to install in equipment prime, single phase alternating current (A.C.) mains electricity input end; be used for being struck by lightning LPZOB district (direct lightning strike guard plot) or LPZ1 district (the first guard plot) and interface, district, LPZ2 district (the second guard plot), be arranged on the end of incoming cables of protected equipment conventionally.
And SPD (Surge protection Device; Surge Protector) be indispensable a kind of device in electronic equipment lightning protection; can be applicable to the lightning protection of the interchange input LED lighting apparatus of outdoor, as preventing and reducing the harm that the surge pulse surge that causes due to extraneous (thunderbolt, electromagnetic interference etc.) or internal system (startup of system switching on effect, perception and capacitive load and stop etc.) and overcurrent are brought system equipment.Its effect is that the instantaneous overvoltage of scurrying into power line, signal transmssion line is limited in the voltage range that equipment or system can bear, or powerful lightning current is let out to inflow place, protects protected equipment or system not to be hit and damages.
Hot protection type piezo-resistance (Thermally Protected MOV is called for short TMOV) is at MOV(metal-oxide varistor, Metal Oxide Varistor) a TCO(Thermal Cutoffs of upper increase).TMOV has 4 pins, and two thicker is MOV pin, the pin of two thinner TCO.MOV and TCO are connected in series, and TCO pin is connected with a pin of MOV, and another pin of TCO is idle or in order to play deixis, can be connected with the device of LED light and so on.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of lightning protection module of LED illumination light engine, and this module can play effective lightning protection to LED outdoor lighting photo engine, low residual voltage and zero afterflow.
The utility model solves the technical scheme that its technical problem adopts: the lightning protection module of LED photo engine, comprise live wire input, zero line input, ground wire input, live wire output and zero line output, also comprise the first piezo-resistance, the second piezo-resistance, the 3rd piezo-resistance, the 4th piezo-resistance, the first gas discharge tube, the second gas discharge tube, the 3rd gas discharge tube, the first inductance and the second inductance;
Live wire input is connected with live wire output by the first inductance, and zero line input is connected with zero line output by the second inductance;
One end of the first piezo-resistance is connected with live wire input, the other end of the first piezo-resistance is connected with one end of the first gas discharge tube, the other end of the first gas discharge tube is connected with one end of the second piezo-resistance, the other end of the second piezo-resistance is connected with zero line input, and the another end of the first gas discharge tube is connected with ground wire input;
One end of the 3rd piezo-resistance is connected with live wire input, and the other end of the 3rd piezo-resistance joins by the second gas discharge tube and zero line input;
One end of the 4th piezo-resistance is connected with live wire output, and the other end of the 4th piezo-resistance is connected with zero line output by the 3rd gas discharge tube.
The feature of piezo-resistance maximum is on-load voltage above being added in it during lower than its threshold voltage, and the electric current that flows through it is minimum; When on-load voltage exceedes threshold value, its resistance diminishes, thereby makes the electric current that flows through it increase sharply and the impact of other circuit is changed and not quite reduces the impact of overvoltage on follow-up sensitive circuit.Therefore piezo-resistance is mainly used in transient overvoltage protection.
Live wire output is connected with LED photo engine live wire input, and zero line output is connected with LED photo engine zero line input, is the power supply of LED photo engine, guarantees that LED photo engine can conducting.
Gas discharge tube (GDT, gas discharge tube) essence is a kind of discharging gap being sealed in ceramic cavity, is filled with inert gas to stablize its discharge voltage in cavity, can take precautions against the first order lightning surge protection for various power supplys and holding wire.
Concrete, the first piezo-resistance, the second piezo-resistance, the 3rd piezo-resistance and the 4th piezo-resistance are all metal oxide piezo-resistances.
Metal oxide piezo-resistance (MOV, Metal Oxide Varistor) comprises by Zinc oxide particles and the ceramic block that a small amount of gas metal oxide or polymer interval form, and is sandwiched between two metal sheets.With its superior non-linear voltage-current characteristic, in surge protection field, application is very extensive, and in critical role, stability is high, with low cost.
As the preferred version of technique scheme, the first piezo-resistance, the second piezo-resistance, the 3rd piezo-resistance and the 4th piezo-resistance are all hot protection type piezo-resistances.
Because MOV exists certain leakage current when working, under continuous voltage effect, leakage current has the tendency of increase, and under the large function of current, its performance more easily occurs deteriorated and lost efficacy.And when deteriorated and inefficacy, conventionally producing a large amount of heats, the phenomenon of MOV burning and explosion happens occasionally, and must have overtemperature protection measure.Therefore consider to use hot protection type piezo-resistance.Hot protection type piezo-resistance (Thermally Protected MOV, be called for short TMOV) is at MOV(metal-oxide varistor, Metal Oxide Varistor) increase a TCO(Thermal Cutoffs on body).TCO internal resistance is very little, and not only self does not generate heat, and stream during super-high-current voltage drop very low.Thermal coupling is good, and the temperature that can experience delicately MOV raises; And because TCO and MOV connect mutually, when TCO is subject to thermal cutoff, just cut off the supply access of MOV, the temperature of MOV is no longer raise, reached the object of heat protection; Meanwhile, when MOV lost efficacy, can cause larger leakage current, and the leakage current TCO that can fuse, thereby play protection effect.
Further, also comprise indicator light, another pin of another pin of the Thermal Cutoffs of the first hot protection type piezo-resistance and the Thermal Cutoffs of the second hot protection type piezo-resistance joins, another pin of the Thermal Cutoffs of the second hot protection type piezo-resistance joins and joins with another pin of the Thermal Cutoffs of the 3rd hot protection type piezo-resistance, another pin of the Thermal Cutoffs of the 3rd hot protection type piezo-resistance is connected with the positive pole of indicator light by the first resistance, the negative pole of indicator light is connected with another pin of the Thermal Cutoffs of the 4th hot protection type piezo-resistance again.
The beneficial effects of the utility model are: adopt two-stage anti-surge protection circuit, use inductance as decoupling component, strengthen the lightning protection to LED photo engine; By adopting hot protection type piezo-resistance, make this module there is overheat protective function, good reliability, long service life; high throughflow ability, low pressure is lower, and corresponding speed is fast, is convenient to change and safeguard; and with low cost, performance brilliance, belongs to C class power source surge protector.The utility model is applicable to LED lighting.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Wherein, L10 is live wire input; N10 is zero line input; L20 is live wire output; N20 is zero line output, and PE is ground wire input, and L1 is the first inductance; L2 is the second inductance; G1 is the first gas discharge tube, and G2 is the second gas discharge tube, and G3 is the 3rd gas discharge tube; TMOV1 is the first hot protection type piezo-resistance; TMOV2 is the second hot protection type piezo-resistance, and TMOV3 is the 3rd hot protection type piezo-resistance, and TMOV4 is the 4th hot protection type piezo-resistance; LED1 is indicator light, and R1 is the first resistance.
Embodiment
Below in conjunction with drawings and Examples, describe the technical solution of the utility model in detail.
As shown in Figure 1, the lightning protection module of LED photo engine of the present utility model, comprise live wire input L10, zero line input N10, ground wire input PE, live wire output L20 and zero line output N20, also comprise the first piezo-resistance, the second piezo-resistance, the 3rd piezo-resistance, the 4th piezo-resistance, the first gas discharge tube G1, the second gas discharge tube G2, the 3rd gas discharge tube G3, the first inductance L 1 and the second inductance L 2;
Live wire input L10 is connected with live wire output L20 by the first inductance L 1, and zero line input N10 is connected with zero line output N20 by the second inductance L 2;
One end of the first piezo-resistance is connected with live wire input L10, the other end of the first piezo-resistance is connected with one end of the first gas discharge tube G1, the other end of the first gas discharge tube G1 is connected with one end of the second piezo-resistance, the other end of the second piezo-resistance is connected with zero line input N10, and the another end of the first gas discharge tube G1 is connected with ground wire input;
One end of the 3rd piezo-resistance is connected with live wire input L10, and the other end of the 3rd piezo-resistance joins by the second gas discharge tube G2 and zero line input N10;
One end of the 4th piezo-resistance is connected with live wire output L20, and the other end of the 4th piezo-resistance is connected with zero line output N20 by the 3rd gas discharge tube G3.
Embodiment
The first piezo-resistance, the second piezo-resistance, the 3rd piezo-resistance and the 4th piezo-resistance in this example are all hot protection type piezo-resistances, i.e. TMOV.Particularly, be respectively: the first hot protection type piezo-resistance TMOV1, the second hot protection type piezo-resistance TMOV2, the 3rd hot protection type piezo-resistance TMOV3 and the 4th hot protection type piezo-resistance TMOV4.
TMOV is as the standard components and parts of Surge Protector, both can be used as one independently surge suppressor be arranged in equipment, can be used as again the Surge Protector components and parts of (as SPD, TVSS).The classical insulation of TMOV and conventional MOV parameter are in full accord.MOV is connected in series with TCO, does not affect the electric property of MOV.
In the first branch road that in this example, the first hot protection type piezo-resistance TMOV1, the first gas discharge tube G1 connect with the second hot protection type piezo-resistance TMOV2; can realize respectively the isolation of live wire input L10 and ground wire input PE; and the isolation of zero line input N10 and ground wire input PE, be the crucial lightning protection part of this example.By using hot protection type piezo-resistance to form overtemperature protection to this module.
In the circuit of TMOV and GDT tandem compound, GDT plays on-off action, when there is no transient overvoltage, do the used time, it can be kept apart TMOV and supply power voltage, do not apply power-frequency voltage, in TMOV, almost without leakage current, can effectively solve the problem that the leakage current in TMOV constantly increases.If separately GDT is used in power circuit, GDT can produce afterflow, but when TMOV is connected in series with GDT, TMOV therebetween just can cut off afterflow.
In addition, the branch road of connecting with the second gas discharge tube G2 take the 3rd hot protection type piezo-resistance TMOV3 is as the second branch road, and the branch road of connecting with the 3rd gas discharge tube G3 take the 4th hot protection type piezo-resistance TMOV4 is as the 3rd branch road.
It is more reliable than only adopting single TMOV to adopt multiple TMOV parallel connections; because adopt single TMOV to protect; once this TMOV lost efficacy; protected equipment just will lose protection; and when adopting after several TMOV protection in parallel; in TMOV doublet, if one damaged, other intact persons still can undertake protective effect.And when being applied to the protection occasion of larger transient state overcurrent, multiple TMOV parallel connections can provide lower clamping voltage, improve the ability of the transient state overcurrent of releasing.In like manner, take the mode of the first branch road, the second branch road and the 3rd branch circuit parallel connection, more reliable than single branch road.
This example is two-stage lightning protection circuit, is a kind of tandem type AC power Surge Protector.Particularly:
Prime: form two each and every one protective units by the first branch road, the differential mode protection as live wire input L10 to ground wire input PE, forms the differential mode protection of live wire to ground wire.The protective unit being comprised of the second branch road is the protection to zero line input N10 as live wire input L10, forms the common mode protection of live wire to zero line.By the summation of the protection of above differential mode and common mode protection as first order lightning protection, actual existence in parallel in circuit.
By the first inductance L 1 and the second inductance L 2, as decoupling device, make the sequence of movement of the lightning protection module of LED photo engine have the regular hour poor, and two fire resisting divisions using decoupling device as whole circuit.Under the power frequency civil power of 220VAC, the first inductance L 1 and the second inductance L 2 are channel status.So-called decoupling, when before and after preventing, circuit network size of current changes, the current russ forming in power supply circuits exerts an influence to the normal work of network.In other words, decoupling circuit can effectively be eliminated the parasitic couplings between circuit network.
Rear class: in view of the characteristic of follow-up load is the characteristic of LED photo engine, only use the 3rd branch road as a protective unit, as differential mode protection, form rear class protective circuit.
Another pin of the Thermal Cutoffs of another pin of the Thermal Cutoffs of the first hot protection type piezo-resistance TMOV1 and the second hot protection type piezo-resistance TMOV2 joins, another pin of the Thermal Cutoffs of the second hot protection type piezo-resistance TMOV2 joins and joins with another pin of the Thermal Cutoffs of the 3rd hot protection type piezo-resistance TMOV3, another pin of the Thermal Cutoffs of the 3rd hot protection type piezo-resistance TMOV3 is connected with the positive pole of indicator light LED1 by the first resistance R 1, the negative pole of indicator light LED1 is connected with another pin of the Thermal Cutoffs of the 4th hot protection type piezo-resistance TMOV4 again.Utilize indicator light LED1 to report to the police herein.LED1 also connects with each Thermal Cutoffs, and when MOV normally works, indicator light is bright, when MOV excess temperature, and Thermal Cutoffs fusing, LED1 extinguishes.In addition the warning work in the time of also can utilizing audible alarm unit or sound and light warning unit to carry out Thermal Cutoffs fusing.
When MOV is overheated, its inside presents short-circuit condition, and whole MOV becomes a good conductor, MOV and fuse and excessive electric current is flowed through within the extremely short time, thus cause blown fuse.Therefore indicator light LED1 also can extinguish.
This lightning protection module is when breaking down, and device has overheated dropout defencive function, can disconnect immediately the connection with electrical network.
Claims (4)
- The lightning protection module of 1.LED photo engine, it is characterized in that, comprise live wire input, zero line input, ground wire input, live wire output and zero line output, also comprise the first piezo-resistance, the second piezo-resistance, the 3rd piezo-resistance, the 4th piezo-resistance, the first gas discharge tube, the second gas discharge tube, the 3rd gas discharge tube, the first inductance and the second inductance;Live wire input is connected with live wire output by the first inductance, and zero line input is connected with zero line output by the second inductance;One end of the first piezo-resistance is connected with live wire input, the other end of the first piezo-resistance is connected with one end of the first gas discharge tube, the other end of the first gas discharge tube is connected with one end of the second piezo-resistance, the other end of the second piezo-resistance is connected with zero line input, and the another end of the first gas discharge tube is connected with ground wire input;One end of the 3rd piezo-resistance is connected with live wire input, and the other end of the 3rd piezo-resistance joins by the second gas discharge tube and zero line input;One end of the 4th piezo-resistance is connected with live wire output, and the other end of the 4th piezo-resistance is connected with zero line output by the 3rd gas discharge tube.
- 2. the lightning protection module of LED photo engine as claimed in claim 1, is characterized in that, the first piezo-resistance, the second piezo-resistance, the 3rd piezo-resistance and the 4th piezo-resistance are all metal oxide piezo-resistances.
- 3. the lightning protection module of LED photo engine as claimed in claim 1, is characterized in that, the first piezo-resistance, the second piezo-resistance, the 3rd piezo-resistance and the 4th piezo-resistance are all hot protection type piezo-resistances.
- 4. the lightning protection module of LED photo engine as claimed in claim 3, it is characterized in that, also comprise indicator light (LED1), hot protection type piezo-resistance comprises metal oxide piezo-resistance and Thermal Cutoffs, a pin of the Thermal Cutoffs of hot protection type piezo-resistance is connected with a pin of its metal oxide piezo-resistance, another pin of another pin of the Thermal Cutoffs of the first piezo-resistance and the Thermal Cutoffs of the second piezo-resistance joins, another pin of the Thermal Cutoffs of the second piezo-resistance joins with another pin of the Thermal Cutoffs of the 3rd piezo-resistance again, another pin of the Thermal Cutoffs of the 3rd piezo-resistance is connected with the positive pole of indicator light (LED1) by the first resistance (R1), the negative pole of indicator light (LED1) is connected with another pin of the Thermal Cutoffs of the 4th piezo-resistance again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320664324.6U CN203589720U (en) | 2013-10-25 | 2013-10-25 | LED optical engine lightning protection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320664324.6U CN203589720U (en) | 2013-10-25 | 2013-10-25 | LED optical engine lightning protection apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203589720U true CN203589720U (en) | 2014-05-07 |
Family
ID=50587572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320664324.6U Expired - Lifetime CN203589720U (en) | 2013-10-25 | 2013-10-25 | LED optical engine lightning protection apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203589720U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104902628A (en) * | 2015-05-20 | 2015-09-09 | 苏州雄达顺新节能科技有限公司 | LED energy-saving street lamp ballast |
| CN104902661A (en) * | 2015-05-20 | 2015-09-09 | 苏州雄达顺新节能科技有限公司 | Intelligent high pressure sodium lamp electronic ballast |
| CN104902662A (en) * | 2015-05-20 | 2015-09-09 | 苏州雄达顺新节能科技有限公司 | Electronic ballast suitable for metal halide lamp |
| CN105375457A (en) * | 2014-08-25 | 2016-03-02 | 潍坊学院 | LED streetlight four-stage lightning protection module |
| CN106287447A (en) * | 2016-10-25 | 2017-01-04 | 广州市立乔科技有限公司 | A kind of LED street lamp |
| CN108173255A (en) * | 2016-12-07 | 2018-06-15 | 乐山加兴科技有限公司 | There is the electronic stop plate of Anti-surging |
| CN109149546A (en) * | 2017-06-15 | 2019-01-04 | 四川阔视科技有限公司 | A kind of surge protection circuit |
| EP3859959A4 (en) * | 2018-09-29 | 2022-07-13 | ZTE Corporation | Lightning surge protection circuit, method and system, and storage medium and electronic apparatus |
-
2013
- 2013-10-25 CN CN201320664324.6U patent/CN203589720U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375457A (en) * | 2014-08-25 | 2016-03-02 | 潍坊学院 | LED streetlight four-stage lightning protection module |
| CN104902628A (en) * | 2015-05-20 | 2015-09-09 | 苏州雄达顺新节能科技有限公司 | LED energy-saving street lamp ballast |
| CN104902661A (en) * | 2015-05-20 | 2015-09-09 | 苏州雄达顺新节能科技有限公司 | Intelligent high pressure sodium lamp electronic ballast |
| CN104902662A (en) * | 2015-05-20 | 2015-09-09 | 苏州雄达顺新节能科技有限公司 | Electronic ballast suitable for metal halide lamp |
| CN106287447A (en) * | 2016-10-25 | 2017-01-04 | 广州市立乔科技有限公司 | A kind of LED street lamp |
| CN108173255A (en) * | 2016-12-07 | 2018-06-15 | 乐山加兴科技有限公司 | There is the electronic stop plate of Anti-surging |
| CN109149546A (en) * | 2017-06-15 | 2019-01-04 | 四川阔视科技有限公司 | A kind of surge protection circuit |
| EP3859959A4 (en) * | 2018-09-29 | 2022-07-13 | ZTE Corporation | Lightning surge protection circuit, method and system, and storage medium and electronic apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203589720U (en) | LED optical engine lightning protection apparatus | |
| CN201178306Y (en) | Surge protector for video, data and electric power | |
| CN101752858B (en) | Multi-gap metal gas discharge tube power supply over-voltage protection module | |
| CN206117149U (en) | Surge protection circuit and have surge protection ware of this surge protection circuit | |
| CN104902628A (en) | LED energy-saving street lamp ballast | |
| CN204741589U (en) | Energy -conserving street lamp ballast of LED | |
| CN203859338U (en) | Power strip inhibiting surge voltage and current | |
| CN204696677U (en) | Exempt from ground connection surge protector | |
| CN205123248U (en) | Anti lightning surge circuit | |
| CN204741609U (en) | Electronic ballast suitable for metal halogen lamp | |
| CN203039363U (en) | Three-phase surge protector | |
| CN204144932U (en) | A kind of novel surge protection device | |
| CN106099840A (en) | The protection circuit of a kind of power circuit and power circuit | |
| CN207967934U (en) | A kind of surge protection circuit and device | |
| CN206211532U (en) | Lightning protection device | |
| CN202127147U (en) | Lightning-proof power socket | |
| CN207099409U (en) | Electric ballast with surge protection circuit | |
| CN206302148U (en) | Surge protector and lightning protection device | |
| CN204992522U (en) | Circuit protector | |
| CN205790759U (en) | A kind of power lightning protection socket | |
| CN105322523A (en) | Novel surge protection device | |
| CN204905838U (en) | Simple and easy overvoltage protection trigger device | |
| CN109089366A (en) | Electric ballast with surge protection circuit | |
| CN204230854U (en) | Siganl thunder-proof device | |
| CN205231383U (en) | Lightning protection wall socket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180529 Address after: 610046 Wuhou District Wuhou new town administrative committee, Wuxi City, Chengdu, Sichuan, 6 6 units of wukexi five road 360 units 1, 2, 3, 4, 5, 6, and 6 floor. Patentee after: SICHUAN SCEI OPTOELECTRONIC CO.,LTD. Address before: 611731 Sichuan Chengdu high tech Zone (West District) Xinda Road No. 2 Patentee before: SICHUAN SUNFOR LIGHT Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190203 Address after: 610046 No. 360, Wukexi Five Road, Chengdu City, Sichuan Province Patentee after: SICHUAN NENGTOU BOZHONG WISDOM LIGHTING INVESTMENT CO.,LTD. Address before: 610046 Wuhou District Wuhou new town administrative committee, Wuxi City, Chengdu, Sichuan, 6 6 units of wukexi five road 360 units 1, 2, 3, 4, 5, 6, and 6 floor. Patentee before: SICHUAN SCEI OPTOELECTRONIC CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610046 No. 360, Wukexi Five Road, Chengdu City, Sichuan Province Patentee after: Sichuan energy investment intelligent photoelectric Co.,Ltd. Address before: 610046 No. 360, Wukexi Five Road, Chengdu City, Sichuan Province Patentee before: SICHUAN NENGTOU BOZHONG WISDOM LIGHTING INVESTMENT Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |
|
| CX01 | Expiry of patent term |