CN204879820U - Antidetonation of easily dispelling heat type street lamp - Google Patents
Antidetonation of easily dispelling heat type street lamp Download PDFInfo
- Publication number
- CN204879820U CN204879820U CN201520695806.7U CN201520695806U CN204879820U CN 204879820 U CN204879820 U CN 204879820U CN 201520695806 U CN201520695806 U CN 201520695806U CN 204879820 U CN204879820 U CN 204879820U
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- China
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- street lamp
- radial
- controller
- snubber block
- enclosed cavity
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Abstract
The utility model relates to an antidetonation of easily dispelling heat type street lamp. It has solved technical problem such as prior art poor stability. This antidetonation of easily dispelling heat type street lamp is including the tube -shape lamp pole that is L shape, the other end at the tube -shape lamp pole is equipped with the street lamp, be equipped with lighting control devices in the tube -shape lamp pole, this lighting control devices has the installation shell of closed cavity and vertical setting, be equipped with the street lamp controller in closed cavity, installation shell middle part is equipped with and is located closed cavity and vertical setting and distribution at the radial snubber block of street lamp controller outlying, it passes through detachable construction and fixes on radial snubber block to form ring channel and street lamp controller between radial snubber block and the closed cavity chamber wall, still be equipped with the soft bearing boss that is located street lamp controller below in the closed cavity of installation shell, the one side of soft bearing boss has a plurality of archs of leaning on at street lamp controller lower surface of supporting respectively, still be equipped with radiator fan in the installation shell. The utility model discloses the advantage lies in: stability is good just dispels the heat.
Description
Technical field
The utility model belongs to technical field of electric power, particularly relates to a kind of easy heat radiation Anti-seismic street lamp.
Background technology
Street lamp is mainly used in illumination, and extinguishing and the unlatching of street lamp are generally controlled by controller for road lamp.Street lamp is generally arranged on lamp stand, and lamp stand is arranged on the both sides of road, and controller for road lamp is arranged in lamp stand.Vehicle on road surface travels through out-of-date, if controller for road lamp is installed unstable, because the vibrations (vehicle travels or other reason) on road surface can cause shorten the service life of controller for road lamp, namely, shock resistance is poor, and secondly, poor radiation also can cause shorten service life.
Utility model content
The purpose of this utility model is for the problems referred to above, provides a kind of design more reasonable, the strong and easy heat radiation Anti-seismic street lamp of long service life of shock resistance.
For achieving the above object, the utility model have employed following technical proposal: this easy heat radiation Anti-seismic street lamp comprises L-shaped tubular lamp stand, one end of tubular lamp stand is provided with ground mount pad, street lamp is provided with at the other end of tubular lamp stand, be provided with in the middle part of described tubular lamp stand and be positioned at tubular lamp stand and the roam lamp control device that can control street lamp extinguishing or open, this roam lamp control device comprises and has enclosed cavity and the mounting casing vertically arranged, controller for road lamp is provided with in enclosed cavity, be provided with in the middle part of described mounting casing and be somely positioned at enclosed cavity and vertically arrange and be distributed in the radial snubber block of controller for road lamp periphery, cannelure is formed and controller for road lamp is fixed on radial snubber block by demountable structure between described radial snubber block and enclosed cavity chamber wall, the radial shock-damping structure being positioned at cannelure is provided with between radial snubber block and enclosed cavity chamber wall, be provided with at the notch place of cannelure and can limit when deformation outwards occurs radial snubber block excessive radial the position-limit mechanism that deformation outwards occurs this radial snubber block excessive radial, the soft support boss be positioned at below controller for road lamp is also provided with in the enclosed cavity of mounting casing, described soft support boss has some projections being resisted against controller for road lamp lower surface respectively near the one side of controller for road lamp, described soft support boss inside is provided with some with described projection axial damping parts one to one, the radiator fan be positioned at above controller for road lamp is also provided with in mounting casing, radiator fan is to up-draught, radiator fan is fixed on the thermal insulation board in mounting casing, thermal insulation board is horizontally disposed with and on thermal insulation board, is provided with some taper louvres, this large upper end, taper louvre lower end is little.
In above-mentioned easy heat radiation Anti-seismic street lamp, enclosed cavity is separated into upper chamber and lower chambers by described thermal insulation board, described radiator fan is arranged in upper chamber, described controller for road lamp is arranged on bottom chamber, also be provided with for detecting bottom chamber temperature and can producing when the temperature of bottom chamber reaches setting maximum temperature the temperature sensor opening control signal in bottom chamber, described radiator fan is connected with temperature sensor.
In above-mentioned easy heat radiation Anti-seismic street lamp, described radial shock-damping structure comprises some two ends and acts on spring on radial snubber block and enclosed cavity chamber wall respectively.
In above-mentioned easy heat radiation Anti-seismic street lamp, outside fix blind hole is respectively equipped with at the lateral surface of the radial snubber block of every block, described enclosed cavity chamber wall is provided with thinks corresponding inner position blind hole with this outside fix blind hole, one end of described spring inserts in outside fix blind hole, and the other end inserts in inner position blind hole.
In above-mentioned easy heat radiation Anti-seismic street lamp, described position-limit mechanism comprises and is connected to radial snubber block lower end and the arc-shaped limit block being positioned at cannelure notch place, and described arc-shaped limit block thickness is less than the groove width of cannelure and and leaves gap between arc-shaped limit block and enclosed cavity chamber wall.
In above-mentioned easy heat radiation Anti-seismic street lamp, described soft support boss be provided with some vertical settings and with described projection installing blind one to one, the aperture of installing blind down, described axial damping parts be in spring and elastic rubber column any one and be arranged in installing blind, one end of axial damping parts acts at the bottom of the hole of installing blind, and the other end acts on mounting casing.
In above-mentioned easy heat radiation Anti-seismic street lamp, described mounting casing is located by fixed structure and be provided with condensate tank of dehumidifier on mounting casing, and mounting casing is also provided with the safeguard structure being positioned at this condensate tank of dehumidifier periphery.Condensate tank of dehumidifier is level sensor, and level sensor is located in mounting casing sidewall and and is tightly connected between mounting casing.
In above-mentioned easy heat radiation Anti-seismic street lamp, described safeguard structure comprises the some arc protective blocks being arranged on condensate tank of dehumidifier periphery, leaves gap between two pieces of adjacent arc protective blocks.
In above-mentioned easy heat radiation Anti-seismic street lamp, described mounting casing top exterior walls is provided with some radiating ribs.
In above-mentioned easy heat radiation Anti-seismic street lamp, in described tubular lamp stand, be provided with the flexible support post being supported on mounting casing lower surface.Flexible support post is made up of elastomeric material.
In above-mentioned easy heat radiation Anti-seismic street lamp, described fixed structure comprises at least one and is arranged on mounting and fixing bracket outside mounting casing.Mounting and fixing bracket is bolted on lamp stand.
Compared with prior art; the advantage of this easy heat radiation Anti-seismic street lamp is: 1, design is more reasonable; shock-absorbing protecting can be carried out to controller for road lamp radial direction in conjunction with radial shock-damping structure owing to being provided with radial snubber block; combine protruding owing to being provided with soft support boss, can protect the axis of controller for road lamp, namely when vibrations occur on road surface; the service life of controller for road lamp can be extended further by radial and axial protection; meanwhile, structural stability is good, practical.2, structure is simple and be easy to manufacture.3, avoid electric shock accidents, safety and be easy to be applied.4, owing to being provided with radiator fan and thermal insulation board, can increase the service life further.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model provides.
Fig. 2 is the roam lamp control device structural representation that the utility model provides.
In figure, mounting casing 1, enclosed cavity 1a, mounting and fixing bracket 1b, radiator fan 1c, radiating ribs 1d, thermal insulation board 1e, temperature sensor 1f, lower casing 11, upper casing 12, sealing ring 13, controller for road lamp 2, radial snubber block 3, cannelure 3a, limited step 31, radial shock-damping structure 4, spring 41, position-limit mechanism 5, arc-shaped limit block 51, soft support boss 6, protruding 61, axial damping parts 62, installing blind 63, condensate tank of dehumidifier 7, safeguard structure 71, arc protective block 71a, tubular lamp stand 8, ground mount pad 81, street lamp 82, flexible support post 83, support 84, roam lamp control device a.
Detailed description of the invention
Be below the specific embodiment of utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1-2, this easy heat radiation Anti-seismic street lamp comprises L-shaped tubular lamp stand 8, and one end of tubular lamp stand 8 is provided with ground mount pad 81, and ground mount pad 81 is fixed on the ground by construction bolt.Street lamp 82 is provided with at the other end of tubular lamp stand 8, be provided with in the middle part of tubular lamp stand 8 and be positioned at tubular lamp stand 8 and the roam lamp control device a that street lamp 82 extinguishes or open can be controlled, in tubular lamp stand 8, be provided with the flexible support post 83 being supported on mounting casing 1 lower surface.Flexible support post 83 can play a part further damping.Flexible support post 83 is fixed on the support 84 in tubular lamp stand 8.
Particularly, as shown in Figure 2, the roam lamp control device a of the present embodiment comprises and has enclosed cavity 1a and the mounting casing 1 vertically arranged.The upper casing 12 that mounting casing 1 comprises lower casing 11 and is fastened on lower casing 11.Sealing ring 13 is provided with between lower casing 11 and upper casing 12, one end of the relative upper casing 12 of lower casing 11 has lower cannelure, upper casing 12 has the upper cannelure that cannelure lower to this is corresponding, and lower cannelure and upper annular flute profile circularize positioning chamber, and described sealing ring 13 is arranged in circular orientation chamber.Secondly, connected by ring flange between described lower casing 11 and upper casing 12.Lower casing 11 and upper casing 12 are made by stainless steel material, not easily get rusty and structural strength is high.In addition, between lower casing 11 and upper casing 12, male-female engagement hermetically-sealed construction is also provided with.Male-female engagement hermetically-sealed construction comprises the lower ring packing step be arranged on lower casing 11, and upper casing 12 is provided with the annular protrusion that can match with lower ring packing step.
Controller for road lamp 2 is provided with in enclosed cavity 1a, be provided with in the middle part of described mounting casing 1 and be somely positioned at enclosed cavity 1a and vertically arrange and be distributed in the radial snubber block 3 of controller for road lamp 2 periphery, the upper end of radial snubber block 3 is connected to lower casing 11 one end near upper casing 12, and the other end is unsettled downwards.Further, radial snubber block 3 is connected as a single entity structure with lower casing 11.Radial snubber block 3 even circumferential is distributed in controller for road lamp 2 periphery and is encircled into a circle.Form cannelure 3a between described radial snubber block 3 and enclosed cavity 1a chamber wall and controller for road lamp 2 is fixed on radial snubber block 3 by demountable structure, cannelure 3a is deformation groove, that is, when there are vibrations, the notch of cannelure 3a is expanded or reduced; Secondly, demountable structure comprises the external screw thread being arranged on controller for road lamp 2 outer wall, is provided with at radial snubber block 3 inwall being encircled into a circle internal thread be threaded with external screw thread.Further, the lower end inside of described radial snubber block 3 is also provided with the limited step 31 for preventing this controller for road lamp 2 from excessively moving down.
Between radial snubber block 3 and enclosed cavity 1a chamber wall, be provided with the radial shock-damping structure 4 being positioned at cannelure 3a, particularly, this radial shock-damping structure 4 comprises some two ends and acts on spring 41 on radial snubber block 3 and enclosed cavity 1a chamber wall respectively.Prioritization scheme, outside fix blind hole is respectively equipped with at the lateral surface of the radial snubber block 3 of every block, described enclosed cavity 1a chamber wall is provided with thinks corresponding inner position blind hole with this outside fix blind hole, and one end of described spring 41 inserts in outside fix blind hole, and the other end inserts in inner position blind hole.The radial snubber block 3 of every block of the present embodiment is respectively equipped with three springs set gradually from the bottom up 41, and the elastic force of described spring 41 reduces from the bottom up gradually.
Be provided with at the notch place of cannelure 3a and can limit when deformation outwards occurs radial snubber block 3 excessive radial the position-limit mechanism 5 that deformation outwards occurs this radial snubber block 3 excessive radial, particularly, this position-limit mechanism 5 comprises and is connected to radial snubber block 3 lower end and the arc-shaped limit block 51 being positioned at cannelure 3a notch place, and described arc-shaped limit block 51 thickness is less than the groove width of cannelure 3a and and leaves gap between arc-shaped limit block 51 and enclosed cavity 1a chamber wall.Arc-shaped limit block 51 is fixed on radial snubber block 3 lower end outside by some self threading pins, has the mating surface matched with enclosed cavity 1a chamber wall in the outside of each arc-shaped limit block 51.
In order to improve heat dispersion, in mounting casing 1, be also provided with the radiator fan 1c be positioned at above controller for road lamp 2.Radiator fan 1c is fixed on the thermal insulation board 1e in mounting casing 1, and thermal insulation board 1e is horizontally disposed with and on thermal insulation board 1e, is provided with some taper louvres.Taper louvre is tapered, and the lower end orifice diameter of this taper louvre is greater than upper end orifice diameter.Further enhancing heat dispersion.Enclosed cavity 1a is separated into upper chamber and lower chambers by thermal insulation board 1e, described radiator fan 1c is arranged in upper chamber, described controller for road lamp 2 is arranged on bottom chamber, also be provided with for detecting bottom chamber temperature and can producing when the temperature of bottom chamber reaches setting maximum temperature the temperature sensor 1f opening control signal in bottom chamber, described radiator fan 1c is connected with temperature sensor 1f.When the highest design temperature higher than controller for road lamp of the temperature of bottom chamber, radiator fan 1c opens and dispels the heat, and the radiator fan 1c of the present embodiment is aerofoil fan.Secondly, some radiating ribs 1d are provided with in mounting casing 1 top exterior walls.
In the enclosed cavity 1a of mounting casing 1, be also provided with the soft support boss 6 be positioned at below controller for road lamp 2, soft support boss 6 is made up of silica gel or rubber.Near the one side of controller for road lamp 2, there is some projections 61 being resisted against controller for road lamp 2 lower surface respectively at soft support boss 6, respectively there is arc convex on each protruding 61, some with described projection 61 axial damping parts 62 are one to one provided with in soft support boss 6 inside, for the ease of installing, soft support boss 6 is provided with some vertical settings and with described protruding 61 installing blinds 63 one to one, the aperture of installing blind 63 down, described axial damping parts 62 are for any one in spring and elastic rubber column and be arranged in installing blind 63, one end of axial damping parts 62 acts at the bottom of the hole of installing blind 63, the other end acts on mounting casing 1.
Further, mounting casing 1 is located by fixed structure and be provided with condensate tank of dehumidifier 7 on mounting casing 1, and condensate tank of dehumidifier 7 is level sensor, and level sensor is located in mounting casing 1 sidewall and and is tightly connected between mounting casing 1.Mounting casing 1 is also provided with the safeguard structure 71 being positioned at this condensate tank of dehumidifier 7 periphery.Particularly, safeguard structure 71 here comprises the some arc protective block 71a being arranged on condensate tank of dehumidifier 7 periphery, leaves gap between two pieces of adjacent arc protective block 71a.Be provided with at tubular lamp stand (8) middle part the installing port passed for condensate tank of dehumidifier 7 outer end, be tightly connected between condensate tank of dehumidifier 7 and installing port.
In addition, above-mentioned fixed structure comprises at least one and is arranged on mounting and fixing bracket 1b outside mounting casing 1.
In the present embodiment, the present embodiment is mounted to the desired location of lamp stand inside, condensate tank of dehumidifier 7 and extraneous contact, namely when the ponding in the external world rises to the position that condensate tank of dehumidifier 7 can contact, condensate tank of dehumidifier 7 produces control signal and by signal transmission to administrative center's system in this region, then administrative center's system acceptance signal thus extinguish the order of LED street lamp to controller for road lamp 2, namely LED street lamp is extinguished, this structure can prevent from causing pedestrian to get an electric shock due to electric leakage, improves the safety coefficient of trip.
In addition; the present embodiment can carry out shock-absorbing protecting to controller for road lamp 2 radial direction by being provided with radial snubber block 3 in conjunction with radial shock-damping structure 4; protruding 61 and axial damping parts 62 are combined owing to being provided with soft support boss 6; can protect the axis of controller for road lamp 2; namely when vibrations occur on road surface; can be extended the service life of controller for road lamp 2 further by radial and axial protection, meanwhile, structural stability is good.
Further, owing to being provided with radiator fan and thermal insulation board, can increase the service life further.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ mounting casing 1 herein, enclosed cavity 1a, mounting and fixing bracket 1b, radiator fan 1c, radiating ribs 1d, thermal insulation board 1e, temperature sensor 1f, lower casing 11, upper casing 12, sealing ring 13, controller for road lamp 2, radial snubber block 3, cannelure 3a, limited step 31, radial shock-damping structure 4, spring 41, position-limit mechanism 5, arc-shaped limit block 51, soft support boss 6, protruding 61, axial damping parts 62, installing blind 63, condensate tank of dehumidifier 7, safeguard structure 71, arc protective block 71a, tubular lamp stand 8, ground mount pad 81, street lamp 82, flexible support post 83, support 84, the terms such as roam lamp control device a, but do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (10)
1. an easy heat radiation Anti-seismic street lamp, comprise L-shaped tubular lamp stand (8), one end of tubular lamp stand (8) is provided with ground mount pad (81), street lamp (82) is provided with at the other end of tubular lamp stand (8), it is characterized in that, described tubular lamp stand (8) middle part is provided with and is positioned at tubular lamp stand (8) and the roam lamp control device (a) that can control street lamp (82) extinguishing or open, this roam lamp control device (a) comprises and has enclosed cavity (1a) and the mounting casing (1) vertically arranged, controller for road lamp (2) is provided with in enclosed cavity (1a), described mounting casing (1) middle part is provided with and is somely positioned at enclosed cavity (1a) and vertically arranges and be distributed in the radial snubber block (3) of controller for road lamp (2) periphery, cannelure (3a) is formed and controller for road lamp (2) is fixed on radial snubber block (3) by demountable structure between described radial snubber block (3) and enclosed cavity (1a) chamber wall, the radial shock-damping structure (4) being positioned at cannelure (3a) is provided with between radial snubber block (3) and enclosed cavity (1a) chamber wall, be provided with at the notch place of cannelure (3a) and can limit when deformation outwards occurs radial snubber block (3) excessive radial the position-limit mechanism (5) that deformation outwards occurs this radial snubber block (3) excessive radial, the soft support boss (6) being positioned at controller for road lamp (2) below is also provided with in the enclosed cavity (1a) of mounting casing (1), described soft support boss (6) has some projections (61) being resisted against controller for road lamp (2) lower surface respectively near the one side of controller for road lamp (2), the radiator fan (1c) being positioned at controller for road lamp (2) top is also provided with in mounting casing (1), radiator fan (1c) is to up-draught, radiator fan (1c) is fixed on the thermal insulation board (1e) in mounting casing (1), thermal insulation board (1e) is horizontally disposed with and is provided with some taper louvres on thermal insulation board (1e), this large upper end, taper louvre lower end is little.
2. easy heat radiation Anti-seismic street lamp according to claim 1, it is characterized in that, enclosed cavity (1a) is separated into upper chamber and lower chambers by described thermal insulation board (1e), described radiator fan (1c) is arranged in upper chamber, described controller for road lamp (2) is arranged on bottom chamber, also be provided with for detecting bottom chamber temperature and can producing when the temperature of bottom chamber reaches setting maximum temperature the temperature sensor (1f) opening control signal in bottom chamber, described radiator fan (1c) is connected with temperature sensor (1f).
3. easy heat radiation Anti-seismic street lamp according to claim 1, it is characterized in that, described radial shock-damping structure (4) comprises some two ends and acts on spring (41) on radial snubber block (3) and enclosed cavity (1a) chamber wall respectively.
4. easy heat radiation Anti-seismic street lamp according to claim 3, it is characterized in that, outside fix blind hole is respectively equipped with at the lateral surface of the radial snubber block (3) of every block, described enclosed cavity (1a) chamber wall is provided with thinks corresponding inner position blind hole with this outside fix blind hole, one end of described spring (41) inserts in outside fix blind hole, and the other end inserts in inner position blind hole.
5. the easy heat radiation Anti-seismic street lamp according to claim 1 or 2 or 3 or 4, it is characterized in that, described position-limit mechanism (5) comprises and is connected to radial snubber block (3) lower end and the arc-shaped limit block (51) being positioned at cannelure (3a) notch place, and described arc-shaped limit block (51) thickness is less than the groove width of cannelure (3a) and and leaves gap between arc-shaped limit block (51) and enclosed cavity (1a) chamber wall.
6. the easy heat radiation Anti-seismic street lamp according to claim 1 or 2 or 3 or 4, it is characterized in that, described soft support boss (6) be provided with some vertical settings and with described projection (61) installing blind (63) one to one, the aperture of installing blind (63) down, axial damping parts (62) are for any one in spring and elastic rubber column and be arranged in installing blind (63), one end of axial damping parts (62) acts at the bottom of the hole of installing blind (63), and the other end acts on mounting casing (1).
7. the easy heat radiation Anti-seismic street lamp according to claim 1 or 2 or 3 or 4, it is characterized in that, described mounting casing (1) is located by fixed structure and be provided with condensate tank of dehumidifier (7) on mounting casing (1), mounting casing (1) is also provided with and is positioned at the peripheral safeguard structure (71) of this condensate tank of dehumidifier (7).
8. easy heat radiation Anti-seismic street lamp according to claim 7, it is characterized in that, described safeguard structure (71) comprises the some arc protective blocks (71a) being arranged on condensate tank of dehumidifier (7) periphery, leaves gap between two pieces of adjacent arc protective blocks (71a).
9. easy heat radiation Anti-seismic street lamp according to claim 7, is characterized in that, described mounting casing (1) top exterior walls is provided with some radiating ribs (1d).
10. the easy heat radiation Anti-seismic street lamp according to claim 1 or 2 or 3 or 4, is characterized in that, is provided with the flexible support post (83) being supported on mounting casing (1) lower surface in described tubular lamp stand (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520695806.7U CN204879820U (en) | 2015-09-09 | 2015-09-09 | Antidetonation of easily dispelling heat type street lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520695806.7U CN204879820U (en) | 2015-09-09 | 2015-09-09 | Antidetonation of easily dispelling heat type street lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204879820U true CN204879820U (en) | 2015-12-16 |
Family
ID=54824189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520695806.7U Expired - Fee Related CN204879820U (en) | 2015-09-09 | 2015-09-09 | Antidetonation of easily dispelling heat type street lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204879820U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090844A (en) * | 2015-09-09 | 2015-11-25 | 张锦鹏 | Anti-shock streetlamp capable of achieving heat dissipation easily |
| CN105508950A (en) * | 2016-02-03 | 2016-04-20 | 尹长青 | Intelligent lamp |
-
2015
- 2015-09-09 CN CN201520695806.7U patent/CN204879820U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090844A (en) * | 2015-09-09 | 2015-11-25 | 张锦鹏 | Anti-shock streetlamp capable of achieving heat dissipation easily |
| CN105508950A (en) * | 2016-02-03 | 2016-04-20 | 尹长青 | Intelligent lamp |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20160909 |
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| CF01 | Termination of patent right due to non-payment of annual fee |