CN102364218B - Light-emitting diode (LED) daylight lamp capable of directly replacing fluorescent lamp - Google Patents
Light-emitting diode (LED) daylight lamp capable of directly replacing fluorescent lamp Download PDFInfo
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- CN102364218B CN102364218B CN201110388607.8A CN201110388607A CN102364218B CN 102364218 B CN102364218 B CN 102364218B CN 201110388607 A CN201110388607 A CN 201110388607A CN 102364218 B CN102364218 B CN 102364218B
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Abstract
The invention discloses a light-emitting diode (LED) daylight lamp capable of directly replacing a fluorescent lamp, and relates to the technical field of lighting. The LED daylight lamp comprises a tube, end covers, and an external LED power supply; the end covers are arranged on two end parts of the tube; the external LED power supply is electrically connected with the tube; the end covers are respectively provided with two terminals; inner ends of two terminals on the same end cover are in short circuit through a conducive element; and the tube is provided with a direct current (DC) input end. Compared with the prior art, the LED daylight lamp can be directly arranged at the position of the original fluorescent lamp, circuits are not required to be changed, the change can be easily and quickly carried out, and the LED daylight lamp is convenient and practical; the power supply is externally arranged, so that no glare, no shadow and uniform and mild light transmission can be realized; when one end is electrified, the other end is absolutely safe when touched by a hand; the heat of the power supply is dissipated outside the light, the radiating burden of the tube is lightened and the service life of the tube is prolonged; and reclamation cost can be saved and the safety standard is easily met.
Description
Technical field
The present invention relates to lighting technical field, particularly relate to a kind of LED fluorescent lamp that can directly replace fluorescent lamp to use.
Background technology
LED fluorescent lamp adopts light emitting diode as light source, and light efficiency is higher, more energy-conservation, longer service life, and more environmental protection.LED fluorescent lamp energy-saving is up to more than 70%, and it is more than 10 times that the life-span is common fluorescent tube, become the ideal product that the current stage replaces fluorescent tube.
In prior art, as shown in Figure 5, almost on market, all LED fluorescent lamps are all the LED fluorescent lamps 22 that adopts built-in power.So-called built-in power just refers to power supply is positioned over to fluorescent tube the inside.This built-in great advantage can be made the existing fluorescent tube of direct replacement exactly, and without original circuit is done to any change.
For example: the Chinese invention patent that application number is 201120020876.4, " a kind of LED lamp with starter " disclosed, its technical scheme comprises LED fluorescent tube and LED starter, every one end of LED fluorescent tube is all provided with two terminals, two terminal short circuits of LED fluorescent tube one end, two terminals of the other end are distinct terminals, one of them distinct terminals is for joining with an electric power incoming line, another distinct terminals is joined by a terminal of LED starter and short circuit, and another terminal and another electric power incoming line of short circuit join.LED fluorescent tube and LED starter are installed on the line-incoming lamp socket of two ends, the two ends line-incoming lamp socket that this LED lamp with starter can be compatible traditional, and above-mentioned LED lamp has adopted the mode of built-in power.
But there is following defect in this on-chip power formula LED fluorescent lamp: it is large that (1) changes power supply difficulty.Much larger than the service life of power supply, if power supply has been broken, directly change whole LED fluorescent lamp and will cause great waste the service life of LED, if only change power supply, must rely on again professional to carry out dismounting and change to circuit; (2) affect the luminous quality of LED.It is not evenly soft etc. that the heat sending makes LED fluorescent lamp in use can produce dazzle, shadow and bright dipping; (3) weak heat-dissipating.Because power acquisition is with built-in, the heat of power supply also just joins in fluorescent tube, makes the heat radiation of LED increase again difficulty, has shortened the service life of LED; (4) cost recovery is high, and built-in power formula has also increased the cost of the recycling of electronic waste, because power unit must be split out and processes respectively; (5) be difficult to reach the standard of safety.Due to on-chip power, to reaching safety standard, make a big impact.
Because the LED fluorescent lamp of built-in power exists above-mentioned defect, people have invented again a kind of LED fluorescent lamp of external power supply thereupon.
For example: the Chinese invention patent that application number is 200920134372.8 discloses " a kind of LED fluorescent lamp of external LED power supply ", its structure comprises LED daylight lamp body, on this LED daylight lamp body, be connected with an external LED power supply, described external LED power supply comprises PCB circuit board, input and output terminal, power pack, PCB circuit board is built in power pack, and input terminal is connected with LED daylight lamp body by PCB circuit board, lead-out terminal.Though the LED fluorescent lamp of the LED power supply that this is external has solved the more existing defects of the LED fluorescent lamp of built-in power, but because its power supply installation need to change original circuit, just can be fixed on the lamp plate of traditional fluorescent lamp, need to again change original lamp plate circuit structure.
Summary of the invention
The object of the invention is to avoid weak point of the prior art and a kind of LED fluorescent lamp that can directly replace fluorescent lamp to use is provided, can directly be installed on the position of original fluorescent lamp, not needing to change any circuit, can simple and quickly change, convenient and practical; Its power supply is external, can realize free from glare, unshadowed and bright dipping is evenly soft; When one end energising, the other end touches and is perfectly safe with hand; The heat of power supply distributes from light outside, has alleviated the heat radiation burden of fluorescent tube, has extended the service life of fluorescent tube; Also can save cost recovery and also easily reach the standard of safety.
Object of the present invention is achieved through the following technical solutions.
A kind of LED fluorescent lamp that can directly replace fluorescent lamp to use, include the LED power supply of fluorescent tube, end cap and externally positioned type, described end cap is arranged at respectively two ends of described fluorescent tube, the LED power supply of described externally positioned type is electrically connected to described fluorescent tube, described end cap is provided with two terminals, described terminal includes the outer end that is arranged at the inner of described end cap inner side and is arranged at described end cap outside, be arranged at between the inner of described two terminals of end cap by electric-conductor short circuit, described fluorescent tube is provided with DC input.
Preferably, be arranged at between the inner of described two terminals of end cap by conducting strip short circuit.
Another is preferred, and described fluorescent tube includes radiator and lampshade, and described radiator and described lampshade are interconnected to form the fluorescent tube of hollow cylindrical.
Preferred, the mutual snapping of described radiator and described lampshade forms the fluorescent tube of hollow cylindrical.
Further, described radiator is provided with groove, and described lampshade is provided with raised line, and described raised line is connected with described groove fit.
Preferably, described radiator is evenly provided with fin.
Another is preferred, described fluorescent tube includes LED light source assembly, in the fluorescent tube of described hollow cylindrical, is provided with substrate, and the two ends of described substrate are connected with described radiator respectively, described LED light source assembly is arranged at described substrate, and described LED light source assembly is electrically connected to described DC input.
Preferred, described substrate is provided with clip.
Another is preferred, and the LED power supply of described externally positioned type is electrically connected to described DC input.
Preferred, the LED power supply of described externally positioned type is the LED power supply with the externally positioned type of starter Interface Terminal, the described LED power supply with the externally positioned type of starter Interface Terminal includes LED power circuit, two starter Interface Terminals that are electrically connected to described LED power circuit and insulation crust, described LED power circuit is arranged at the inside of described insulation crust, described LED power circuit is electrically connected to an end of two described starter Interface Terminals, described LED power circuit is connected with DC output, described insulation crust is provided with through hole, described DC output is connected with out-put supply line, described out-put supply line is electrically connected to described DC input through described through hole.
Beneficial effect of the present invention is as follows:
A kind of LED fluorescent lamp that can directly replace fluorescent lamp to use of the present invention, include the LED power supply of fluorescent tube, end cap and externally positioned type, end cap is arranged at respectively two ends of fluorescent tube, the LED power supply of externally positioned type is electrically connected to fluorescent tube, end cap is provided with two terminals, terminal includes the outer end that is arranged at the inner of end cap inner side and is arranged at end cap outside, be arranged at between the inner of two terminals of an end cap by electric-conductor short circuit, fluorescent tube is provided with DC input.
Compared with prior art, a kind of LED fluorescent lamp that can directly replace fluorescent lamp to use of the present invention, can directly be installed on the position of original fluorescent lamp, does not need to change any circuit, can simple and quickly change, convenient and practical; Its power supply is external, can realize free from glare, unshadowed and bright dipping is evenly soft; When one end energising, the other end touches and is perfectly safe with hand; The heat of power supply distributes from light outside, has alleviated the heat radiation burden of fluorescent tube, has extended the service life of fluorescent tube; Also can save cost recovery and also easily reach the standard of safety.
Accompanying drawing explanation
The present invention will be further described to utilize accompanying drawing, but content in accompanying drawing does not form any limitation of the invention.
Fig. 1 is a kind of structural representation that can directly replace the fluorescent tube of the LED fluorescent lamp that fluorescent lamp uses of the present invention.
Fig. 2 is a kind of electrical block diagram that can directly replace the use state of the LED fluorescent lamp that fluorescent lamp uses of the present invention.
Fig. 3 is a kind of structural representation that can directly replace a cross section of the LED fluorescent lamp that fluorescent lamp uses in Fig. 1.
Fig. 4 is the electrical block diagram of the fluorescent lamp of prior art.
Fig. 5 is the electrical block diagram of LED fluorescent lamp of the built-in power of prior art.
In Fig. 1 to Fig. 5, include:
Fluorescent tube 1;
End cap 2;
Terminal 3;
Electric-conductor 4;
DC input 5;
Radiator 6;
Lampshade 7;
LED light source assembly 11;
The LED power supply 14 with the externally positioned type of starter Interface Terminal;
LED power circuit 15;
Starter Interface Terminal 16;
Shell 17;
DC output 18;
Through hole 19;
Out-put supply line 20;
The LED fluorescent lamp 22 of built-in power.
The specific embodiment
The invention will be further described with the following Examples.
embodiment 1.
A kind of specific embodiment that can directly replace the LED fluorescent lamp of fluorescent lamp use of the present invention
One of, as shown in Figures 1 to 5, include the LED power supply of fluorescent tube 1, end cap 2 and externally positioned type, end cap 2 is arranged at respectively two ends of fluorescent tube 1, the LED power supply of externally positioned type is electrically connected to fluorescent tube 1, and end cap 2 is provided with two terminals 3, and terminal 3 includes the outer end that is arranged at the inner of end cap 2 inner sides and is arranged at end cap 2 outsides, be arranged at between the inner of two terminals 3 of end cap by electric-conductor 4 short circuits, fluorescent tube is provided with DC input 5.
A kind of LED fluorescent lamp that can directly replace fluorescent lamp to use of the present invention, can directly be installed on the position of original fluorescent lamp 21, does not need to change any circuit, can simple and quickly change, convenient and practical; Its power supply is external, can realize free from glare, unshadowed and bright dipping is evenly soft; When one end energising, the other end touches and is perfectly safe with hand; The heat of power supply distributes from light outside, has alleviated the heat radiation burden of fluorescent tube 1, has extended the service life of fluorescent tube 1; Also can save cost recovery and also easily reach the standard of safety.
It should be noted that: the LED fluorescent lamp 22 that only situation that can directly replace two terminals 3 of LED fluorescent lamp one end of fluorescent lamp use to carry out short circuit is only suitable for built-in power, as shown in Figure 5, and for the LED daylight lamp apparatus that can directly replace fluorescent lamp to use of external power supply of the present invention, if just can directly replace two terminal 3 short circuits of LED fluorescent lamp one end of fluorescent lamp use, circuit can not form a loop.
embodiment 2.
The LED fluorescent lamp that can directly replace fluorescent lamp to use, other structure of the present embodiment is identical with embodiment 1, and difference is: be arranged between the inner with two terminals 3 of an end cap 2 and pass through conducting strip short circuit.Use conducting strip can facilitate production and processing.
Fluorescent tube 1 includes radiator 6 and lampshade 7, and radiator 6 and lampshade 7 are interconnected to form the fluorescent tube 1 of hollow cylindrical.Make the profile of fluorescent tube 1 basic identical with fluorescent lamp 21, can mate better original fluorescent lamp 21 lamp sockets.
Radiator 6 is provided with groove 8, and lampshade 7 is provided with raised line 9, and raised line 9 is connected with groove 8.Use raised line 9 and the snapping mode of groove 8 to facilitate the installation and removal of radiator 6 and lampshade 7, be convenient for changing or keep in repair the LED light source assembly 11 in fluorescent tube 1.It should be noted that: also can design according to actual needs other snapping modes, be not limited only to use the mode that is connected of raised line 9 and groove 8.
Radiator 6 is evenly provided with fin 10.Fin 10 is for being better LED light source assembly 11 heat radiation, service life that can prolonging lamp tube 1.
Fluorescent tube 1 includes LED light source assembly 11, in the fluorescent tube 1 of hollow cylindrical, is provided with substrate 12, and the two ends of substrate 12 are connected with radiator 6 respectively, and LED light source assembly 11 is arranged at substrate 12, and LED light source assembly 11 is electrically connected to DC input 5.LED light source assembly 11 is positioned on the substrate 12 of radiator 6, the heat producing when can better LED light source assembly 11 be worked sheds.LED light source assembly 11 is electrically connected to DC input 5, from external LED power supply, by DC input 5, is 11 power supplies of LED light source assembly.
The LED power supply of externally positioned type is electrically connected to DC input 5.The LED fluorescent lamp power supply that can directly replace fluorescent lamp to use of the present invention outward of the LED power supply of externally positioned type.
embodiment 3.
The LED fluorescent lamp that can directly replace fluorescent lamp to use, other structure of the present embodiment is identical with embodiment 1, and difference is: the mutual snapping of radiator 6 and lampshade 7 forms the fluorescent tube 1 of hollow cylindrical.The mode of employing snapping facilitates installation or the dismounting of radiator 6 and lampshade 7.
The LED power supply of externally positioned type is the LED power supply 14 with the externally positioned type of starter Interface Terminal, the LED power supply 14 with the externally positioned type of starter Interface Terminal includes LED power circuit 15, two starter Interface Terminals 16 that are electrically connected to LED power circuit 15 and insulation crust, LED power circuit 15 is arranged at the inside of insulation crust, LED power circuit 15 is electrically connected to an end of two starter Interface Terminals 16, LED power circuit 15 is connected with DC output 18, insulation crust is provided with through hole 19, DC output 18 is connected with out-put supply line 20, out-put supply line 20 is electrically connected to DC input 5 through through hole 19.
One end of two starter Interface Terminals 16 is arranged at the inner side of sealing plate, and the other end of two starter Interface Terminals 16 is arranged at the outside of sealing plate.One end of two starter Interface Terminals 16 is arranged at the inner side of sealing plate, is conveniently connected with LED power circuit 15; The other end of two starter Interface Terminals 16 is arranged at the outside of sealing plate, is conveniently connected with fluorescent tube 1.
Insulation crust comprises that lower ending opening is the shell 17 of tubular structure, and the sealing plate being fixedly connected with shell 17.Sealing plate is fixedly connected with shell 17, makes the insulating properties of insulation crust better.
Sealing plate and shell 17 also can be set to removably connect.Sealing plate and shell 17 removably connect, and after inner LED power circuit 15 damages, can easily LED power circuit 15 be taken out, and shell 17 can also be recycled with sealing plate, saves the energy.
Particularly, removably connecting of sealing plate and shell 17 can be set to snapping mode.It should be noted that: sealing plate and shell 17, except adopting the mode of snapping is connected, can also be taked other connected mode according to actual needs.
The present embodiment replaces with original starter the LED power supply 14 of the externally positioned type with starter Interface Terminal, the LED power supply 14 with the externally positioned type of starter Interface Terminal is arranged on the position of original starter, and use same interface, original fluorescent lamp 21 is replaced with to fluorescent tube 1, do not change any circuit of former fluorescent lamp 21 lamp plates, can reach energy-conservation, free from glare, unshadowed and bright dipping is evenly soft; When one end energising, the other end touches and is perfectly safe with hand; The heat of power supply distributes from light outside, alleviates the heat radiation burden of fluorescent tube 1, the service life of prolonging lamp tube 1; Also can save cost recovery, conveniently the beyond thought technique effect such as install and use.
The LED power supply 14 of the externally positioned type with starter Interface Terminal of the present embodiment and the LED fluorescent lamp that can directly replace fluorescent lamp to use are installed on after lamp plate, its operation principle is as follows: using Fig. 2 as with reference to figure, power supply input L end is electrically connected to one end of the terminal 3 of the LED fluorescent lamp lower left that can directly replace fluorescent lamp to use, can directly replace the other end of terminal 3 of lower left and one end of the electric-conductor on the left side 4 of the LED fluorescent lamp of fluorescent lamp use to be electrically connected to, the other end of the electric-conductor 4 on the left side is electrically connected to one end of the upper left terminal 3 of LED fluorescent lamp that can directly replace fluorescent lamp to use, the other end that can directly replace the upper left terminal 3 of LED fluorescent lamp that fluorescent lamp uses is electrically connected to the one end of LED power supply 14 with the externally positioned type of starter Interface Terminal, the other end of LED power supply 14 with the externally positioned type of starter Interface Terminal is electrically connected to one end of the top-right terminal 3 of LED fluorescent lamp that can directly replace fluorescent lamp to use, can directly replace the other end of the top-right terminal 3 of LED fluorescent lamp of fluorescent lamp use and one end of the electric-conductor 4 on the right to be electrically connected to, the other end of the electric-conductor 4 on the right is electrically connected to one end of the bottom-right terminal 3 of LED fluorescent lamp that can directly replace fluorescent lamp to use, can directly replace the other end of the bottom-right terminal 3 of LED fluorescent lamp of fluorescent lamp use to be electrically connected to one end of ballast, the other end of ballast is electrically connected to power supply input N end.
Alternating voltage from electrical network is directly guided to the LED power supply 14 of the externally positioned type with starter Interface Terminal, through after thering is the voltage stabilizing of LED power supply 14 of the externally positioned type of starter Interface Terminal and processing, export low DC voltage, the DC output 18 of LED power supply 14 with the externally positioned type of starter Interface Terminal is connected to the DC input 5 that can directly replace the LED fluorescent lamp that fluorescent lamp uses, and the LED power supply 14 with the externally positioned type of starter Interface Terminal offers this voltage the LED fluorescent lamp that can directly replace fluorescent lamp to use.
Finally should be noted that; above embodiment is only for illustrating technical scheme of the present invention but not limiting the scope of the invention; although the present invention is explained in detail with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement technical scheme of the present invention, and not depart from essence and the scope of technical solution of the present invention.
Claims (6)
1. the LED fluorescent lamp that can directly replace fluorescent lamp to use, include fluorescent tube, the LED power supply of end cap and externally positioned type, described end cap is arranged at respectively two ends of described fluorescent tube, the LED power supply of described externally positioned type is electrically connected to described fluorescent tube, it is characterized in that: the LED power supply of described externally positioned type is the LED power supply with the externally positioned type of starter Interface Terminal, described in each, end cap is provided with two terminals, described in each, terminal includes the outer end that is arranged at the inner of described end cap inner side and is arranged at described end cap outside, be arranged at between the inner of described two terminals of end cap by being electrically connected to the starter Interface Terminal of the LED power supply of externally positioned type after electric-conductor short circuit, described fluorescent tube is provided with DC input, particularly: DC input is electrically connected to the output of the LED power supply of externally positioned type.
2. a kind of LED fluorescent lamp that can directly replace fluorescent lamp to use according to claim 1, is characterized in that: described fluorescent tube includes radiator and lampshade, and described radiator and described lampshade are interconnected to form the fluorescent tube of hollow cylindrical.
3. a kind of LED fluorescent lamp that can directly replace fluorescent lamp to use according to claim 2, is characterized in that: the mutual snapping of described radiator and described lampshade forms the fluorescent tube of hollow cylindrical.
4. a kind of LED fluorescent lamp that can directly replace fluorescent lamp to use according to claim 3, is characterized in that: described radiator is provided with groove, and described lampshade is provided with raised line, and described raised line is connected with described groove fit.
5. a kind of LED fluorescent lamp that can directly replace fluorescent lamp to use according to claim 2, is characterized in that: described radiator is evenly provided with fin.
6. a kind of LED fluorescent lamp that can directly replace fluorescent lamp to use according to claim 1, it is characterized in that: described in there is the externally positioned type of starter Interface Terminal LED power supply include LED power circuit, two starter Interface Terminals that are electrically connected to described LED power circuit and insulation crust, described LED power circuit is arranged at the inside of described insulation crust, described LED power circuit is electrically connected to an end of two described starter Interface Terminals, described LED power circuit is connected with DC output, described insulation crust is provided with through hole, described DC output is connected with out-put supply line, described out-put supply line is electrically connected to described DC input through described through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110388607.8A CN102364218B (en) | 2011-11-30 | 2011-11-30 | Light-emitting diode (LED) daylight lamp capable of directly replacing fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110388607.8A CN102364218B (en) | 2011-11-30 | 2011-11-30 | Light-emitting diode (LED) daylight lamp capable of directly replacing fluorescent lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102364218A CN102364218A (en) | 2012-02-29 |
| CN102364218B true CN102364218B (en) | 2014-03-26 |
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| CN201110388607.8A Expired - Fee Related CN102364218B (en) | 2011-11-30 | 2011-11-30 | Light-emitting diode (LED) daylight lamp capable of directly replacing fluorescent lamp |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202392733U (en) * | 2011-11-30 | 2012-08-22 | 徐慧 | LED (light emitting diode) power supply and LED fluorescent lamp with same |
| CN106594547B (en) * | 2016-12-19 | 2023-07-04 | 浙江向日葵环保科技有限公司 | LED fluorescent lamp with external driving device for illumination and emergency |
| CN113243314A (en) * | 2021-06-17 | 2021-08-13 | 山东舍拜恩环保科技有限公司 | Same-illumination LED lighting lamp tube for livestock and poultry breeding and same-illumination lighting system thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201096278Y (en) * | 2007-01-25 | 2008-08-06 | 梁格非 | LED universal daylight lamp tube |
| CN201992401U (en) * | 2011-01-21 | 2011-09-28 | 陈上贵 | Light-emitting diode (LED) lamp with starter |
| CN201992413U (en) * | 2011-03-01 | 2011-09-28 | 品耀光电科技(北京)有限公司 | Fin type external power supply LED (light-emitting diode) fluorescent lamp |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100844538B1 (en) * | 2008-02-12 | 2008-07-08 | 에스엠크리에이션 주식회사 | Led lamp using the fluorescent socket with the ballast |
| CN201487639U (en) * | 2009-08-18 | 2010-05-26 | 林志泽 | Improved structure of light emitting diode lamp tube |
| TWI419605B (en) * | 2010-01-20 | 2013-12-11 | Sunonwealth Electr Mach Ind Co | Ac led lamp |
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- 2011-11-30 CN CN201110388607.8A patent/CN102364218B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201096278Y (en) * | 2007-01-25 | 2008-08-06 | 梁格非 | LED universal daylight lamp tube |
| CN201992401U (en) * | 2011-01-21 | 2011-09-28 | 陈上贵 | Light-emitting diode (LED) lamp with starter |
| CN201992413U (en) * | 2011-03-01 | 2011-09-28 | 品耀光电科技(北京)有限公司 | Fin type external power supply LED (light-emitting diode) fluorescent lamp |
Non-Patent Citations (1)
| Title |
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| JP特开2011-151010A 2011.08.04 |
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Address after: 523333 Dongguan City, Shek Pai Town, the edge of the village of water Ji Village Industrial Zone, Kyrgyzstan Fung Lane 18, No. four, No. Applicant after: Xu Hui Address before: 523087 Guangdong province Dongguan Nancheng Hongyuan energy Cannes 25 seat 5C Applicant before: Xu Hui |
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Address after: Pu Zhen Yang Liu Cun 422000 Hunan County in Shaoyang Province five peak Lee Group No. 12 Patentee after: Xu Hui Address before: 523333 Dongguan City, Shek Pai Town, the edge of the village of water Ji Village Industrial Zone, Kyrgyzstan Fung Lane 18, No. four, No. Patentee before: Xu Hui |
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Granted publication date: 20140326 Termination date: 20171130 |