CN102149233A - LED (Light Emitting Device) light source control device - Google Patents
LED (Light Emitting Device) light source control device Download PDFInfo
- Publication number
- CN102149233A CN102149233A CN2010101083978A CN201010108397A CN102149233A CN 102149233 A CN102149233 A CN 102149233A CN 2010101083978 A CN2010101083978 A CN 2010101083978A CN 201010108397 A CN201010108397 A CN 201010108397A CN 102149233 A CN102149233 A CN 102149233A
- Authority
- CN
- China
- Prior art keywords
- light source
- led light
- led
- circuit
- control device
- 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.)
- Granted
Links
- 230000000694 effects Effects 0.000 claims description 12
- 238000004804 winding Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 abstract description 21
- 238000001914 filtration Methods 0.000 abstract description 6
- 230000005855 radiation Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000004065 semiconductor Substances 0.000 description 4
- 238000000429 assembly Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Images
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention relates to an LED (Light Emitting Device) light source control device which comprises a rectifying circuit, a filtering circuit and a current limiting and over-current protection circuit. An input end of the rectifying circuit is electrically connected with the utility power, an output end of the rectifying circuit is connected with the filtering circuit. An output end of the filtering circuit is connected to an LED light source, and an output end of the current limiting and over-current protection circuit is connected with the LED light source. A first piezoresistor with first stage protection and a first capacitor are connected in series between a live wire and a null line of the utility power. Bleeder resistors are connected in parallel at two ends of the first capacitor. Anti-surge inductors are connected on the live wire of an input end of the utility power in series. The heat radiation degree of the LED light source self is well controlled by the device, the heat radiation area of the LED light source self is enlarged, the work temperature of the LED light source self is lowered, and the service life of the LED is prolonged. The LED is more efficient and more safe and saves more energy.
Description
Technical field
The present invention relates to a kind of light source control device of illuminating lamp, a kind of specifically led light source control device.
Background technology
Led light source has high energy-conservation, high light efficiency, high brightness and characteristic such as environment friendly and pollution-free, the energy consumption of LED (white light) only is 1/10 of an incandescent lamp, and 1/4 of electricity-saving lamp economizes on electricity more than 80% than conventional incandescent, brightness is 10 times of incandescent lamp under the equal-wattage, luminous efficiency is up to 100lm/w, colour temperature 2700K-6400K, and color rendering index is more than 80, extra long life, being more than 50 times of traditional tungsten lamp life-span, can reaching 6-10 ten thousand hours useful life, is latest generation energy-conserving and environment-protective light sources.
The operating voltage of LED is all very low at present, and generally between direct current 2.6V-3.8V, electric current is about 20mA.The conventional method that electric main is converted to the operating voltage of LED is, adopting after transformer step-down or the Switching Power Supply step-down again, rectifying and wave-filtering comes the driving LED light source, but this power supply lights in startup that self also consumes a part of electric energy in the led light source work, and these proportion of goods damageds of evidence are at 15-30%.Be subjected to the restriction of volume and factors such as cost and operating efficiency in addition; the most simple and practical method is exactly with tens of LED strings together; directly add dual current limliting and protective circuit with civil power; rectifying and wave-filtering comes driving LED again; take the driving power of capacitance decompression current limliting way more or less all to have inefficiency, unstable properties; to the demanding drawback of civil power, and owing to cost an arm and a leg, the application of led light source, popularize, promote and have difficulty in taking a step.
Summary of the invention
Weak points such as the inefficiency that exists at led light source control device in the prior art, unstable properties, the technical problem to be solved in the present invention provide that a kind of circuit is clear, the LED illuminating lamp control device of letter joint, lower cost for material.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
Led light source control device of the present invention comprises rectification circuit, filter circuit, current limliting and current foldback circuit; wherein; the input of rectification circuit links to each other with civil power; output is connected to filter circuit; the output of filter circuit is connected to led light source, and the output of current limliting and current foldback circuit connects led light source.
First piezo-resistance and first electric capacity of connecting and having first class of protection between the live wire of described civil power and the zero line; The bleeder resistance in parallel at the first electric capacity two ends; On the live wire of mains electricity input end, be in series with anti-surge inductance; Described filter circuit comprises second electric capacity, second inductance and second resistance, and wherein second electric capacity is connected between the output and ground of rectification circuit, and the output of rectification circuit is connected to led light source by second resistance and second inductance; The 3rd electric capacity that has second piezo-resistance, the 5th diode of second class protection effect and have the time-delay cushioning effect also in parallel between the output of described filter circuit and the ground wire;
Described current limliting and current foldback circuit are an oscillating circuit of being made up of first and second triode, transformer and the 5th electric capacity, wherein the base stage of first triode connects the collector electrode of second triode, the emitter of first triode connects the base stage of second triode, the emitter of first triode is by the 7th grounding through resistance, the grounded emitter of second triode, the collector electrode of first triode is parallel to the two ends of the 5th electric capacity respectively by the 6th diode and Secondary winding of transformer, the two ends of the 5th electric capacity link to each other with the led light source group; Elementary winding one end of transformer links to each other other end ground connection with the base stage of first triode.
Described led light source is many groups LED assemblies in parallel, and every group of LED assembly is divided into the LED group of a plurality of series connection again, and each LED group is composed in series by a plurality of LED, the voltage stabilizing didoe DW that is connected in parallel of each LED group; Led light source is installed on the wide circuit lamp plate, and LED adopts the large bonding pad lamp base.
The present invention has following beneficial effect and advantage:
1. apparatus of the present invention have adopted high-efficiency power, wide circuit lamp plate, LED to adopt large bonding pad lamp base structure, better controlled the degree of heat radiation of led light source itself, strengthen the area of dissipation of led light source self, reduced the working temperature of LED self, prolonged the useful life of LED.
2. the electric energy of apparatus of the present invention own loss 3-5%, constant-current supply work is more stable, and operating efficiency is higher, when guaranteeing the normal steady operation of led light source, more efficient, energy-conservation, safety.
3. apparatus of the present invention circuit is clear, letter saves, lower cost for material, helps applying.
Description of drawings
Fig. 1 is circuit theory diagrams of the present invention.
Embodiment
As shown in Figure 1; led light source control device of the present invention comprises rectification circuit, filter circuit, current limliting and current foldback circuit; wherein; the input of rectification circuit links to each other with civil power; output is connected to filter circuit; the output of filter circuit is connected to a plurality of led light source groups, and the output of current limliting and current foldback circuit and a plurality of led light source group also connect.
The first piezo-resistance RS1 and first capacitor C 1 of connecting and having first class of protection between the live wire of described civil power and the zero line, the bleeder resistance R1 in parallel at first capacitor C, 1 two ends; On the live wire of mains electricity input end, be in series with anti-surge inductance L 1;
Described filter circuit comprises second capacitor C 2, second inductance L 2 and second resistance R 2, wherein second capacitor C 2 is connected between the output and ground of rectification circuit, and the output of rectification circuit is connected to the led light source group of a plurality of parallel connections by second resistance R 2 and second inductance L 2;
The 3rd capacitor C 3 that has the second piezo-resistance RS2, the 5th diode D5 of second class protection effect and have the time-delay cushioning effect also in parallel between the output of described filter circuit and the ground wire.
Described current limliting and current foldback circuit are an oscillating circuit of being made up of first and second triode Q1, Q2, the seven～ten resistance R 7～R10 the 5th, six capacitor C 5, C6 transformer TF1 and the 6th diode D6, wherein the base stage of the first triode Q1 connects the collector electrode of the second triode Q2, simultaneously by the 8th resistance R 8 and the 4th capacitor C 4 ground connection; The emitter of the first triode Q1 connects the base stage of the second triode Q2 by the tenth resistance R 10, the emitter of the first triode Q1 is by the 7th resistance R 7 ground connection simultaneously, the collector electrode of the first triode Q1 is parallel to the two ends of the 5th capacitor C 5 by the secondary winding of the 6th capacitor C 6 and transformer TF1 respectively, and exports the led light source group to; The elementary end ground connection of transformer TF1, another links to each other with the base stage of the first triode Q1 with the 6th capacitor C 6 by the 9th resistance R 9.
Present embodiment is at apparatus of the present invention front end; be the input of civil power utilize the first piezo-resistance RS1, as the first class of protection of load; in filter circuit, utilize the second class protection of the second piezo-resistance RS2 as load; because of piezo-resistance can be released mutation current effectively at voltage jump moment (as thunder and lightning, big power consumption equipment starting etc.); thereby protection load; the response time of piezo-resistance is generally at Millisecond; the high voltage pulse voltage of moment in the input power supply can be released over the ground, thereby protection LED is not punctured by instantaneous pressure.
First capacitor C 1 act as step-down and current limliting, the characteristic of electric capacity be logically exchange, stopping direct current, when electric capacity was connected in the alternating current circuit, its capacitive reactance computing formula was:
XC＝1/2πfC
XC represents the capacitive reactance of electric capacity in the formula, and f represents that the frequency C of input ac power represents the capacity of decompression capacitor.
The electric current computing formula that flows through capacity voltage dropping circuit is:
I＝U/XC
I represents to flow through the electric current of electric capacity in the formula, and U represents that supply voltage XC represents the capacitive reactance of electric capacity.
In the alternating current circuit of 220V, 50Hz, when load voltage was far smaller than 220V, the relational expression of electric current and electric capacity was:
The I=69C wherein unit of electric capacity is uF, and the unit of electric current is mA.
Bleeder resistance R1 act as: when sine wave when peak-peak is cut off constantly, remaining electric charge on first capacitor C 1 can't discharge, the president stored for a long time, if human body touches the metal part of first capacitor C 1 when maintenance, strong electric shock possibility is arranged, and the existence of bleeder resistance R1 can be fallen remaining charge discharging resisting, thereby guarantees man-machine safety.The resistance of bleeder resistance R1 is relevant with the size of electric capacity, and the capacity of general electric capacity is big more, and remaining electric charge is just many more, and the resistance of bleeder resistance C1 will be selected littler.
The rectifier bridge that rectification circuit adopts the first～4 diode D1-D4 to constitute, its effect are to be pulsating dc voltage with AC rectification.
The filter circuit filtering High-frequency Interference that second inductance L 2, second capacitor C 2 and second resistance R 2 constitute, the effect of the 3rd capacitor C 3 is that the pulsating dc voltage after the rectification is filtered into steady direct voltage.Because first capacitor C 1 can not provide big electric current, the charging interval of the 3rd capacitor C 3 is long, so the voltage on the 3rd capacitor C 3 can not suddenly change, plays the effect and the soft start effect of protection load like this.The 5th diode D5 and the second piezo-resistance RS2 constitute pressure-sensitive protective circuit.
In the present embodiment, led light source is many groups LED assemblies in parallel, and every group of LED assembly is divided into the LED group of a plurality of series connection again, and each LED group is composed in series by a plurality of LED.The voltage stabilizing didoe DW that is connected in parallel of each LED group can guarantee the operate as normal of led light source.A LED group breaks down when having in the LED assembly, during corrupted, other LED group can also continue operate as normal.
LED is a kind of solid-state semiconductor device, and the heart of LED is a semi-conductive wafer, and an end of wafer is attached on the support, and an end is a negative pole, and the other end connects the positive pole of power supply, and entire wafer is got up by epoxy encapsulation.The practical semiconductor wafer is made up of three parts, and a part is a P type semiconductor, occupies an leading position in its hole, the inside, and the other end is a N type semiconductor, mainly is electronics here, the middle normally quantum well in 1 to 5 cycle.When electric current acted on this wafer by lead, electronics and hole will be pushed to quantum well, and electronics will send energy with the form of photon then with hole-recombination in quantum well.
Apparatus of the present invention are an extremely important crucial part in led light source is used, and its main effect is the driving LED light source.The present invention can emit a large amount of heats in the course of the work according to LED, the tube core junction temperature is risen rapidly, LED power is high more, heating effect is big more, the rising of led chip temperature will cause luminescent device changes of properties and electro-optical efficiency decay, when serious even inefficacy, experiment test shows: 5 degrees centigrade of the every risings of LED self temperature, the characteristic of luminous flux decline 3%, the variation of electric current in power-supply system when taking into full account design constant pressure and flow and the variation of input line voltage in its driving power circuit is because if power source voltage, the electric current variation can cause the heat increase of led light source own to cause led light source to produce light decay rapidly.Present embodiment has adopted high-efficiency power, wide circuit lamp plate, LED adopts the large bonding pad lamp base, better controlled the heat radiation work of led light source itself, strengthened the area of dissipation of led light source self, reduce the working temperature of LED self, prolonged the useful life of LED.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (9)
1. led light source control device; it is characterized in that comprising: rectification circuit, filter circuit, current limliting and current foldback circuit; wherein; the input of rectification circuit links to each other with civil power; output is connected to filter circuit; the output of filter circuit is connected to led light source, and the output of current limliting and current foldback circuit connects led light source.
2. by the described led light source control device of claim 1, it is characterized in that: first piezo-resistance (RS1) and first electric capacity (C1) of connecting and having first class of protection between the live wire of described civil power and the zero line.
3. by the described led light source control device of claim 2, it is characterized in that: bleeder resistance (R1) in parallel at first electric capacity (C1) two ends.
4. by the described led light source control device of claim 1, it is characterized in that: on the live wire of mains electricity input end, be in series with anti-surge inductance (L1).
5. by the described led light source control device of claim 1, it is characterized in that: described filter circuit comprises second electric capacity (C2), second inductance (L2) and second resistance (R2), wherein second electric capacity (C2) is connected between the output and ground of rectification circuit, and the output of rectification circuit is connected to led light source by second resistance (R2) and second inductance (L2).
6. by the described led light source control device of claim 5, it is characterized in that: the 3rd electric capacity (C3) that has second piezo-resistance (RS2), the 5th diode (D5) of second class protection effect and have the cushioning effect of delaying time also in parallel between the output of described filter circuit and the ground wire.
7. by the described led light source control device of claim 1, it is characterized in that: described current limliting and current foldback circuit are one by first, two triode (Q1, Q2), the oscillating circuit that transformer (TF1) and the 5th electric capacity (C5) are formed, wherein the base stage of first triode (Q1) connects the collector electrode of second triode (Q2), the emitter of first triode (Q1) connects the base stage of second triode (Q2), the emitter of first triode (Q1) is by the 7th resistance (R7) ground connection, the grounded emitter of second triode (Q2), the collector electrode of first triode (Q1) is parallel to the two ends of the 5th electric capacity (C5) respectively by the secondary winding of the 6th diode (D6) and transformer (TF1), the two ends of the 5th electric capacity (C5) link to each other with the led light source group; Elementary winding one end of transformer (TF1) links to each other other end ground connection with the base stage of first triode (Q1).
8. by the described led light source control device of claim 1, it is characterized in that: described led light source is many groups LED assembly in parallel, every group of LED assembly is divided into the LED group of a plurality of series connection again, and each LED group is composed in series by a plurality of LED, the voltage stabilizing didoe DW that is connected in parallel of each LED group.
9. by the described led light source control device of claim 8, it is characterized in that: led light source is installed on the wide circuit lamp plate, and LED adopts the large bonding pad lamp base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010108397.8A CN102149233B (en) | 2010-02-10 | 2010-02-10 | LED (Light Emitting Device) light source control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010108397.8A CN102149233B (en) | 2010-02-10 | 2010-02-10 | LED (Light Emitting Device) light source control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102149233A true CN102149233A (en) | 2011-08-10 |
| CN102149233B CN102149233B (en) | 2014-03-19 |
Family
ID=44423141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010108397.8A Expired - Fee Related CN102149233B (en) | 2010-02-10 | 2010-02-10 | LED (Light Emitting Device) light source control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102149233B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510620A (en) * | 2011-10-28 | 2012-06-20 | 周宏标 | LED (light-emitting diode) light source module |
| CN103166440A (en) * | 2013-01-31 | 2013-06-19 | 佛山市华全电气照明有限公司 | Light-emitting diode (LED) rectifying circuit drainage high-voltage surge circuit |
| CN106376150A (en) * | 2015-07-22 | 2017-02-01 | 山东骏风电子有限公司 | Balance breathing lamp |
| CN106993354A (en) * | 2017-03-31 | 2017-07-28 | 苏州市霜地节能科技有限公司 | Capacitance decompression inductance anti-surge circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101420804A (en) * | 2008-11-13 | 2009-04-29 | 沈锦祥 | High power LED lamp driving power source and combination of matched lamp |
| CN201260260Y (en) * | 2007-12-17 | 2009-06-17 | 顾茂章 | LED driver circuit capable of long lighting using alternating current electrical main supply |
| CN201312402Y (en) * | 2008-12-02 | 2009-09-16 | 田冬华 | LED lamp constant current circuit |
| CN201383889Y (en) * | 2009-04-01 | 2010-01-13 | 谢建强 | LED circuit |
-
2010
- 2010-02-10 CN CN201010108397.8A patent/CN102149233B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201260260Y (en) * | 2007-12-17 | 2009-06-17 | 顾茂章 | LED driver circuit capable of long lighting using alternating current electrical main supply |
| CN101420804A (en) * | 2008-11-13 | 2009-04-29 | 沈锦祥 | High power LED lamp driving power source and combination of matched lamp |
| CN201312402Y (en) * | 2008-12-02 | 2009-09-16 | 田冬华 | LED lamp constant current circuit |
| CN201383889Y (en) * | 2009-04-01 | 2010-01-13 | 谢建强 | LED circuit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510620A (en) * | 2011-10-28 | 2012-06-20 | 周宏标 | LED (light-emitting diode) light source module |
| CN103166440A (en) * | 2013-01-31 | 2013-06-19 | 佛山市华全电气照明有限公司 | Light-emitting diode (LED) rectifying circuit drainage high-voltage surge circuit |
| CN106376150A (en) * | 2015-07-22 | 2017-02-01 | 山东骏风电子有限公司 | Balance breathing lamp |
| CN106993354A (en) * | 2017-03-31 | 2017-07-28 | 苏州市霜地节能科技有限公司 | Capacitance decompression inductance anti-surge circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102149233B (en) | 2014-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101541116B (en) | Electronic ballast of alternate current high-power LED illumination energy-saving lamp | |
| CN104918387B (en) | A kind of LED light device of exchange driving | |
| CN201606717U (en) | LED lamp tube | |
| CN102149233B (en) | LED (Light Emitting Device) light source control device | |
| CN201174799Y (en) | Electronic ballast for AC large power LED illuminating energy saving lamp | |
| CN103068129A (en) | Light-emitting diode (LED) driving power supply | |
| CN103220868A (en) | High-power light emitting diode (LED) switching power supply | |
| CN203086799U (en) | LED driving circuit under double-loop control | |
| CN100499951C (en) | Stable long-acting lighting indication device for light-emitting diode | |
| CN201757288U (en) | LED bulb | |
| CN102196653B (en) | Xenon lamp circuit and intelligent controller thereof | |
| CN201928493U (en) | Constant current led lamp | |
| CN202713751U (en) | LED energy saving lamp integrated module | |
| CN101865401A (en) | Aid-to-navigation lamp | |
| CN203387719U (en) | LED driver used for illumination | |
| CN202005010U (en) | Practical LED energy saving lamp | |
| CN203015236U (en) | A LED driving power supply | |
| CN203632931U (en) | Protection circuit for driving LED light source COB series combination with switching power supply | |
| CN201919225U (en) | High-efficiency high-power-factor LED lamp | |
| CN202263579U (en) | Line lamp device for diamond synthesis press | |
| CN206596269U (en) | Dimmable LED drive control circuit | |
| CN200950682Y (en) | Novel highly effective low cost constant-current driver for LED lighting lamp | |
| CN202634807U (en) | Constant-current LED lighting lamp using current adjustment tube | |
| CN203301829U (en) | LED lighting drive circuit | |
| CN103687209A (en) | Alternating-current drive circuit of LED streetlight |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Chunmei Inventor before: Xiao Shiwei |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160608 Address after: 100029, Beijing, Chaoyang District cherry garden No. 28 building (cherry concentrated office area 0011) Patentee after: Beijing Zhong Jin Fu Information Technology Co., Ltd. Address before: 110141 No. 30, Hai Lu, Shenyang economic and Technological Development Zone, Liaoning, China Patentee before: Liaoning Baolin Group Energy Saving Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180606 Address after: 110000 Cang Hai Road, Shenyang economic and Technological Development Zone, Liaoning 30 Patentee after: Liaoning Hui rice Energy Saving Technology Co., Ltd. Address before: 100029 Cherry Blossom Garden 28, Chaoyang District, Beijing (Cherry Blossom central office 0011) Patentee before: Beijing Zhong Jin Fu Information Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20190210 |