CN203162730U - Cylindrical LED street lamp - Google Patents
Cylindrical LED street lamp Download PDFInfo
- Publication number
- CN203162730U CN203162730U CN2013200566212U CN201320056621U CN203162730U CN 203162730 U CN203162730 U CN 203162730U CN 2013200566212 U CN2013200566212 U CN 2013200566212U CN 201320056621 U CN201320056621 U CN 201320056621U CN 203162730 U CN203162730 U CN 203162730U
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- China
- Prior art keywords
- heat radiation
- coverboard
- lamp bar
- described heat
- heat dissipation
- 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 - Fee Related
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- 230000005855 radiation Effects 0.000 claims description 55
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 22
- 239000000758 substrate Substances 0.000 claims description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- 239000004411 aluminium Substances 0.000 claims description 10
- 238000003491 array Methods 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 229960001866 silicon dioxide Drugs 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 15
- 230000000694 effects Effects 0.000 description 6
- 238000005286 illumination Methods 0.000 description 6
- 238000004134 energy conservation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The utility model provides a cylindrical LED street lamp which comprises a power supply, a heat dissipation assembly and a shell. The heat dissipation assembly comprises a plurality of heat dissipation shell boards, the heat dissipation shell boards constitute a heat dissipation cylinder in an annular array mode, each heat dissipation shell board is provided with a plurality of main heat dissipation fins, and a plurality of secondary heat dissipation fins parallel to the heat dissipation shell boards are symmetrically arranged on two side faces of each main heat dissipation fin. Light bar bases are arranged on the other side edges, corresponding to one side edges connected with the heat dissipation shell boards, of all the main heat dissipation fins, the light bar bases are provided with light bar containing grooves, and LED illuminating light bars are embedded in the light bar containing grooves in a clamped mode. The shell comprises a bottom shell, a middle frame and a top cover, wherein the middle frame and the top cover are arranged at two axial ends of the heat dissipation cylinder respectively, a top LED light source is arranged at the other end, corresponding to one end attached to the middle frame, of the heat dissipation cylinder, and the top cover is arranged on the top LED light source in a covering mode.
Description
Technical field
The utility model relates to public a kind of lighting apparatus, refers to a kind of LED street lamp of tubular structure especially.
Background technology
Under the background that global energy shortage, environmental requirement improve constantly, clean energy resource is all greatly developed in countries in the world.Advantages such as the LED lamp is low with power consumption, drive characteristic good, response speed is fast, shock resistance is high, long service life, environmental protection enter into gradually people the visual field, become the energy-conserving light source of new generation that at present has most alternative conventional light source advantage in the world.The LED lamp is a kind of green light fixture of generally acknowledging at present, it is as a kind of revolutionary energy-saving illumination technology, just in develop rapidly, along with the rapid growth of Chinese national economy, energy supply and demand contradiction is outstanding day by day, the coming into existence situation of critical shortage of supply of electric power, energy-conservation is present institute urgent problem, in process of urbanization, road lighting and people's productive life is closely related, and the LED street lamp will become the optimal selection that roadway illumination and energy saving is transformed.Therefore, development of new is efficient, energy-conservation, the life-span is long, colour rendering index is high, the LED street lamp of environmental protection has a very important meaning to city illumination is energy-conservation.
Yet traditional LED street lamp exists a series of design disappearance on its structure when concrete the use, be specifically described as follows:
One, irradiated area is wide inadequately, and the light directive property of led light source itself is higher, and the light irradiation is more concentrated, therefore can not make light radiation to from all directions;
Two, traditional LED radiating effect is poor; traditional LED street lamp is in order to protect luminescence unit and power control unit; lamp body is made huge clamshell; the LED luminescence unit is sticked in clamshell by aluminium base; recycling arranges fin at the clamshell back side and dispels the heat; but the cross-ventilation effect between the fin at this clamshell back side is good inadequately, therefore influences radiating effect.
More than 2 be traditional LED street lamp common technical problem in specific implementation process, so will make the maximum usefulness of LED street lamp performance, just must solve illumination range problem and heat dissipation problem in the LED street lamp.
Summary of the invention
The purpose of this utility model is to provide a kind of tubular LED street lamp, and its technical problem underlying to be solved is: traditional LED road lamp cooling poor effect, light look for scope narrow.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the utility model provides
A kind of tubular LED street lamp, it comprises
Power supply,
Radiating subassembly, described radiating subassembly comprise several heat radiation coverboards, and several described heat radiation coverboard circular array arrange, and several described heat radiation coverboard annular arrays are formed a heat-dissipating cylinder, are provided with some main fin on each described heat radiation coverboard, and
On two sides of each described main fin all symmetry be provided with several secondary fin parallel with described heat radiation coverboard, another corresponding with the side of the described heat radiation coverboard of connection on each described main fin side is provided with a lamp bar pedestal,
Offer lamp bar tank on the described lamp bar pedestal, inlay card has the LED luminous lamp strip in the described lamp bar tank, is covered with lamp bar cover on the described lamp bar tank,
Housing, described housing comprises drain pan, center and overhead guard, and described center and overhead guard are separately positioned on the axial two ends of described heat-dissipating cylinder, and described overhead guard is diffuser,
Described power supply is arranged in the described drain pan, and described center covers mutually with described drain pan, a side of the corresponding described drain pan lamp bar circuit substrate that has been sticked on the described center, and the opposite side of described center is sticked on an axial end of described heat-dissipating cylinder,
The other end corresponding with an end of the described center that is sticked is provided with a top led light source on the described heat-dissipating cylinder, and described overhead guard lid is located on the led light source of described top.
Be preferable over: described heat radiation coverboard is arc, and several arc circular array arrange, and the described arc of several of annular array is formed a described heat-dissipating cylinder cylindraceous, and is reserved with the cross-ventilation gap between every two adjacent arcs.
Be preferable over: described heat-dissipating cylinder is made up of five described heat radiation coverboard annular arrays, that all radially extends on each described heat radiation coverboard is provided with two described main fin, and the both sides of each described main fin respectively symmetry be provided with seven secondary fin parallel with described heat radiation coverboard, and the length of the secondary fin of each described main fin both sides waits the radian growth gradually by a side of described heat radiation shell a to side of lamp bar pedestal.
Be preferable over: described heat radiation coverboard, main fin, secondary fin and lamp bar pedestal are aluminium material, and one-body molded.
Be preferable over: described lamp bar tank is T type groove, described LED light-emitting section is the bar shaped aluminium base of LED lamp pearl of being sticked, described bar shaped aluminium base plug-in card is in described T type groove, the both sides of described lamp bar pedestal offer lamp bar cover draw-in groove, position corresponding with the lamp bar cover draw-in groove of described lamp bar pedestal both sides on the inner surface of described lamp bar cover is provided with the card rib, and described card rib is buckled in the described lamp bar cover draw-in groove.
Be preferable over: be provided with fin on the described secondary fin and on the medial surface of described heat radiation coverboard.
Be preferable over: the other end that an end that covers mutually with described center on the described drain pan is corresponding also is connected with a power supply connector.
Be preferable over: described top led light source is the light source substrate of LED lamp pearl of being sticked, and described overhead guard be located on the described light source substrate, and pad is provided with the water-proof silica-gel circle between described overhead guard and the described light source substrate.
Be preferable over: each the described heat radiation coverboard that surrounds into described heat-dissipating cylinder all is fixed between described center and the light source substrate, be provided with axial connecting hole on each main fin on the described heat radiation coverboard, equal bolt has hold-down screw between the connecting hole on described center and light source substrate and each the described main fin.
Compared with prior art, the beneficial effects of the utility model are: the utility model in the specific implementation, around forming a heat-dissipating cylinder, utilizing the some main fin on the described heat-dissipating cylinder is that power supply and the top led light source that is arranged on the axial two ends of described heat-dissipating cylinder dispels the heat by described heat radiation coverboard; Utilize described heat-dissipating cylinder to increase heat transmission speed from bottom to up, realize that by the some main fin that is arranged on the described heat-dissipating cylinder heat to radiation all around, further increases area of dissipation by the secondary fin on the described main fin simultaneously; And be provided with lamp bar pedestal on the described main fin of each on the described heat radiation coverboard, be provided with the LED light-emitting section in the described lamp bar pedestal, and then the axial plane of described heat-dissipating cylinder is provided with radially luminous led light source, enlarged the illumination range of the utility model street lamp greatly.
Description of drawings
Fig. 1 is perspective exploded view of the present utility model.
Fig. 2 is the axial end schematic diagram of radiating subassembly of the present utility model.
Fig. 3 is the enlarged diagram of A among Fig. 2.
The specific embodiment
Below with reference to accompanying drawing 1 to 3 and preferred embodiment a kind of tubular LED street lamp that the utility model proposes is done more to describe in detail.
As Fig. 1, shown in 2, the utility model provides a kind of tubular LED street lamp, it comprises power supply 1, radiating subassembly 10 and housing 20, described radiating subassembly 10 comprises several heat radiation coverboards 11, several described heat radiation coverboard 11 circular array settings, several described heat radiation coverboard 11 annular arrays are formed a heat-dissipating cylinder, be provided with some main fin 12 on each described heat radiation coverboard 11, and on two sides of each described main fin 12 all symmetry be provided with several secondary fin 13 parallel with described heat radiation coverboard 11, another corresponding with the side that connects described heat radiation coverboard 11 on each described main fin 12 side is provided with a lamp bar pedestal 14, offer lamp bar tank 141 on the described lamp bar pedestal 14, inlay card has LED luminous lamp strip 15 in the described lamp bar tank 141, is covered with lamp bar cover 16 on the described lamp bar tank 141;
Described housing 20 comprises drain pan 21, center 22 and overhead guard 23, described center 22 and overhead guard 23 are separately positioned on the axial two ends of described heat-dissipating cylinder, described overhead guard 23 is diffuser, described power supply is arranged in the described drain pan 21, described center 22 covers mutually with described drain pan 21, a side of the corresponding described drain pan 21 lamp bar circuit substrate 2 that has been sticked on the described center 22, the opposite side of described center 22 is sticked on an axial end of described heat-dissipating cylinder, the other end corresponding with an end of the described center 22 that is sticked on the described heat-dissipating cylinder is provided with a top led light source 30, and described overhead guard 23 lids are located on the described top led light source 30.
The utility model around forming a heat-dissipating cylinder, utilizes the some main fin 12 on the described heat-dissipating cylinder to dispel the heat for power supply 1 and the top led light source 30 that is arranged on the axial two ends of described heat-dissipating cylinder by described heat radiation coverboard 11 in the specific implementation; Utilize described heat-dissipating cylinder to increase heat transmission speed from bottom to up, realize heat to radiation all around by the some main fin 12 that is arranged on the described heat-dissipating cylinder, further increase area of dissipations by the secondary fin 13 on the described main fin 12 simultaneously; And be provided with lamp bar pedestal 14 on the described main fin 12 of each on the described heat radiation coverboard 11, be provided with LED light-emitting section 15 in the described lamp bar pedestal 14, and then the axial plane of described heat-dissipating cylinder is provided with radially luminous led light source, enlarged the illumination range of the utility model street lamp greatly.
Preferred embodiment: as shown in Figure 2, described heat radiation coverboard 11 is arc, several arc circular array arrange, and the described arc of several of annular array is formed a described heat-dissipating cylinder cylindraceous, and are reserved with cross-ventilation gap 111 between every two adjacent arcs.Present embodiment in the specific implementation, utilize heat be from the bottom up to around the radiation diffusion principle, adopt heat-dissipating cylinder cylindraceous be conducive to heat transfers and to around even diffusion.
Preferred embodiment: as shown in Figure 2, described heat-dissipating cylinder is made up of five described heat radiation coverboard 11 annular arrays, that all radially extends on each described heat radiation coverboard 11 is provided with two described main fin 12, and the both sides of each described main fin 12 respectively symmetry be provided with seven secondary fin 13 parallel with described heat radiation coverboard 11, and the length of the secondary fin 13 of each described main fin 12 both sides waits the radian growth gradually by a side of described heat radiation shell 11 a to side of lamp bar pedestal 14.
Preferred embodiment: described heat radiation coverboard 11, main fin 12, secondary fin 13 and lamp bar pedestal 14 are aluminium material, and one-body molded.
Preferred embodiment: shown in Fig. 2,3, described lamp bar tank 141 is T type groove, described LED light-emitting section 15 is the bar shaped aluminium base of the LED lamp pearl that is sticked, described bar shaped aluminium base plug-in card is in described T type groove, the both sides of described lamp bar pedestal 14 offer lamp bar cover draw-in groove 142, position corresponding with the lamp bar cover draw-in groove 142 of described lamp bar pedestal 14 both sides on the inner surface of described lamp bar cover 16 is provided with card rib 161, and described card rib 161 is buckled in the described lamp bar cover draw-in groove 142.
Preferred embodiment: as shown in Figure 2, be provided with fin 17 on the described secondary fin 13 and on the medial surface of described heat radiation coverboard 11.By being set, described fin 17 increases the area that described secondary fin 13 and heat radiation coverboard 11 contact with air, and then the enhancing radiating effect.
Preferred embodiment: as shown in Figure 1, the other end that an end that covers mutually with described center 22 on the described drain pan 21 is corresponding also is connected with a power supply connector 24.The utility model can be inserted external power supply efficiently by described connector, described power supply connector 24 is preferably the screw socket joint.
Preferred embodiment: as shown in Figure 1, described top led light source 30 is the light source substrate of the LED lamp pearl that is sticked, and described overhead guard 23 be located on the described light source substrate, and pad is provided with water-proof silica-gel circle 231 between described overhead guard 23 and the described light source substrate.By the joint gap between the described overhead guard 23 of described water-proof silica-gel circle shutoff and the described light source substrate, and then realize water proof and dust proof.
Preferred embodiment: each the described heat radiation coverboard 11 that surrounds into described heat-dissipating cylinder all is fixed between described center 22 and the light source substrate, be provided with axial connecting hole 121 on the main fin 12 of on the described heat radiation coverboard 11 each, equal bolt has hold-down screw between the connecting hole 121 on described center 22 and light source substrate and each the described main fin 12.
Comprehensive the above, the technical solution of the utility model can fully effectively be finished above-mentioned utility model purpose, and structural principle of the present utility model and the principle of work and power are all verified in an embodiment fully, and can reach effect and the purpose of expection, and embodiment of the present utility model also can carry out conversion according to these principles, therefore, the utility model comprise that all mention in the scope in claim all replace contents.Any equivalence of doing in the utility model claim changes, and all belongs within the claim of this case application.
Claims (9)
1. tubular LED street lamp, it comprises power supply, radiating subassembly, described radiating subassembly comprises several heat radiation coverboards, several described heat radiation coverboard circular array arrange, several described heat radiation coverboard annular arrays are formed a heat-dissipating cylinder, be provided with some main fin on each described heat radiation coverboard, and on two sides of each described main fin all symmetry be provided with several secondary fin parallel with described heat radiation coverboard, another corresponding with the side that connects described heat radiation coverboard on each described main fin side is provided with a lamp bar pedestal, offer lamp bar tank on the described lamp bar pedestal, inlay card has the LED luminous lamp strip in the described lamp bar tank, be covered with lamp bar cover on the described lamp bar tank, housing, described housing comprises drain pan, center and overhead guard, described center and overhead guard are separately positioned on the axial two ends of described heat-dissipating cylinder, described overhead guard is diffuser, described power supply is arranged in the described drain pan, described center covers mutually with described drain pan, a side of the corresponding described drain pan lamp bar circuit substrate that has been sticked on the described center, the opposite side of described center is sticked on an axial end of described heat-dissipating cylinder, the other end corresponding with an end of the described center that is sticked is provided with a top led light source on the described heat-dissipating cylinder, and described overhead guard lid is located on the led light source of described top.
2. a kind of tubular LED street lamp as claimed in claim 1, it is characterized in that: described heat radiation coverboard is arc, several arc circular array arrange, the described arc of several of annular array is formed a described heat-dissipating cylinder cylindraceous, and is reserved with the cross-ventilation gap between every two adjacent arcs.
3. a kind of tubular LED street lamp as claimed in claim 2, it is characterized in that: described heat-dissipating cylinder is made up of five described heat radiation coverboard annular arrays, that all radially extends on each described heat radiation coverboard is provided with two described main fin, and the both sides of each described main fin respectively symmetry be provided with seven secondary fin parallel with described heat radiation coverboard, and the length of the secondary fin of each described main fin both sides waits the radian growth gradually by a side of described heat radiation shell a to side of lamp bar pedestal.
4. a kind of tubular LED street lamp as claimed in claim 3, it is characterized in that: described heat radiation coverboard, main fin, secondary fin and lamp bar pedestal are aluminium material, and one-body molded.
5. a kind of tubular LED street lamp as claimed in claim 4, it is characterized in that: described lamp bar tank is T type groove, described LED light-emitting section is the bar shaped aluminium base of LED lamp pearl of being sticked, described bar shaped aluminium base plug-in card is in described T type groove, the both sides of described lamp bar pedestal offer lamp bar cover draw-in groove, position corresponding with the lamp bar cover draw-in groove of described lamp bar pedestal both sides on the inner surface of described lamp bar cover is provided with the card rib, and described card rib is buckled in the described lamp bar cover draw-in groove.
6. a kind of tubular LED street lamp as claimed in claim 5 is characterized in that: be provided with fin on the described secondary fin and on the medial surface of described heat radiation coverboard.
7. a kind of tubular LED street lamp as claimed in claim 6, it is characterized in that: the other end that an end that covers mutually with described center on the described drain pan is corresponding also is connected with a power supply connector.
8. a kind of tubular LED street lamp as claimed in claim 7, it is characterized in that: described top led light source is the light source substrate of LED lamp pearl of being sticked, described overhead guard be located on the described light source substrate, and pad is provided with the water-proof silica-gel circle between described overhead guard and the described light source substrate.
9. a kind of tubular LED street lamp as claimed in claim 8, it is characterized in that: each the described heat radiation coverboard that surrounds into described heat-dissipating cylinder all is fixed between described center and the light source substrate, be provided with axial connecting hole on each main fin on the described heat radiation coverboard, equal bolt has hold-down screw between the connecting hole on described center and light source substrate and each the described heat radiation coverboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200566212U CN203162730U (en) | 2013-02-01 | 2013-02-01 | Cylindrical LED street lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200566212U CN203162730U (en) | 2013-02-01 | 2013-02-01 | Cylindrical LED street lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203162730U true CN203162730U (en) | 2013-08-28 |
Family
ID=49023913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200566212U Expired - Fee Related CN203162730U (en) | 2013-02-01 | 2013-02-01 | Cylindrical LED street lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203162730U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775926A (en) * | 2014-02-25 | 2014-05-07 | 湖州积微电子科技有限公司 | Embedded LED (Light Emitting Diode) lamp |
| CN103775927A (en) * | 2014-02-25 | 2014-05-07 | 湖州积微电子科技有限公司 | Light emitting diode (LED) lamp |
| CN103807693A (en) * | 2014-02-25 | 2014-05-21 | 湖州积微电子科技有限公司 | Rotating embedded type LED lamp |
| CN107883262A (en) * | 2017-11-23 | 2018-04-06 | 广东华朗光电科技有限公司 | A kind of LED bay light |
-
2013
- 2013-02-01 CN CN2013200566212U patent/CN203162730U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775926A (en) * | 2014-02-25 | 2014-05-07 | 湖州积微电子科技有限公司 | Embedded LED (Light Emitting Diode) lamp |
| CN103775927A (en) * | 2014-02-25 | 2014-05-07 | 湖州积微电子科技有限公司 | Light emitting diode (LED) lamp |
| CN103807693A (en) * | 2014-02-25 | 2014-05-21 | 湖州积微电子科技有限公司 | Rotating embedded type LED lamp |
| CN107883262A (en) * | 2017-11-23 | 2018-04-06 | 广东华朗光电科技有限公司 | A kind of LED bay light |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151217 Address after: 518000 Guangdong province Shenzhen Guangming New District Gongming heshuikou second industrial zone Patentee after: SHENZHEN GUANKE TECHNOLOGY CO., LTD. Address before: 402660, 289, Feng Tian street, Berlin Town, Jiangjin District, Chongqing Patentee before: Li Shijun |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20170201 |
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| CF01 | Termination of patent right due to non-payment of annual fee |