CN102494278B - Light-emitting diode (LED) mining lamp - Google Patents
Light-emitting diode (LED) mining lamp Download PDFInfo
- Publication number
- CN102494278B CN102494278B CN201110404840.0A CN201110404840A CN102494278B CN 102494278 B CN102494278 B CN 102494278B CN 201110404840 A CN201110404840 A CN 201110404840A CN 102494278 B CN102494278 B CN 102494278B
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- lamp
- radiator
- plastic shell
- collar
- led
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention discloses a light-emitting diode (LED) mining lamp. The LED mining lamp comprises a power supply box and a lamp body, wherein the power supply box is connected with the lamp body through a lamp holder; the lamp holder consists of an inner lamp holder and an outer lamp holder which are sleeved together; the inner lamp holder and the outer lamp holder are connected with the power supply box through screws; and the lamp cap of the lamp body is connected with the inner lamp holder through a thread. The mining lamp has replaceability and generality, has the function of safe and reliable fixing, is convenient to install and replace, is suitable for various lamp cap types such as E27, E26, E29 and the like or is directly wired and the like without matching with other lamp installation equipment.
Description
Technical field
The present invention relates to LED lighting technical field, particularly a kind of LED bulkhead lamp capable.
The present invention be more particularly directed to a kind of LED bulkhead lamp capable that possesses replaceability, versatility.
Background technology
Bulkhead lamp capable is applicable to factory building, harbour, tunnel, the illumination place such as warehouse, bulkhead lamp capable all adopted the incandescent lamp that power is larger in the past, gas-discharge lamp, the requirement to energy-conserving and environment-protective due to the rise of LED and society in recent years, some LED bulkhead lamp capables have been there are, these LED are by power pack substantially, radiator and LED light source form, such bulkhead lamp capable assembles mostly in advance, there are in use some shortcomings, such as being generally selects satisfactory bulkhead lamp capable according to the requirement of workplace or luminous intensity, at this moment just need to select the whole lamp of different model, or when arbitrary parts wherein go wrong, also need whole lamp to change, use, replace all inconvenient.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, a kind of LED bulkhead lamp capable that possesses replaceability, versatility is provided, that this bulkhead lamp capable has is easy to install and use, it is convenient to replace, applicable to the feature of various lamp holder types.
Technical scheme of the present invention is achieved in that
A LED bulkhead lamp capable, comprises power pack, lamp body, described power pack is connected by lamp socket with lamp body, described lamp socket is comprised of the inside and outside lamp socket connecting together, and inside and outside lamp socket is connected with power pack by screw, and the lamp holder of lamp body is threaded with interior lamp socket.
In order to make to connect more firmly and to facilitate wiring, as preferably, on power pack bottom surface, be provided with the groove matching with outer lamp socket shape, the upper end of outer lamp socket is arranged in groove.
As preferably, described lamp body includes lamp holder, bulb socket, radiator, in radiator, be provided with LED luminescence component, at radiator, be provided with plastic shell outward, between radiator and plastic shell, leave heat dissipation channel, described heat dissipation channel is connected with outside air by the opening at the upper and lower two ends of plastic shell.At radiator, be provided with plastic shell outward, guarantee that housing contacts face do not scald, not scratch hand, and effectively guarantee the product texture of outward appearance; And between radiator and plastic shell, leave heat dissipation channel, form chimney cooling effect, be beneficial to the heat radiation of radiator.
As preferably, in plastic shell upper end, be provided with ventilation strip, described ventilation strip is comprised of many ribs that are circumferentially upwards convexly equipped with along plastic shell upper end open, leaves ventilation gap between two between adjacent rib, at ventilation strip, is arranged with dust cover outward.Adopt said structure design, not only can guarantee that heat dissipation channel upper end ventilates, can also reduce in metallic dust and air suspension and enter lamp body and be attached on radiator, effectively improved safety and the service life of light fixture.
As preferably, shown dust cover comprises the Air Filter assembly that is sheathed on the support outside ventilation strip and is arranged on stent side portion, described support comprises the collar, lower collar and connects the support arm of the upper and lower collar, between every two adjacent support arms, an Air Filter assembly is housed, described Air Filter assembly is comprised of inside casing, housing and the Air Filter that is fixed between interior housing.Air Filter is fixed between interior housing, can regular dismounting, cleaning.
As preferably, described radiator is connected with plastic shell by screw, in radiator outer, is circumferentially with a plurality of fin, in radiator lower end, be provided with end cap, described end cap is a torus, is circumferentially with a plurality of air-vents on torus, and each air-vent is all connected with heat dissipation channel.Heat dissipation channel lower end is communicated with outside air by the air-vent on end cap, has guaranteed that heat dissipation channel lower end ventilates.
As preferably, described LED luminescence component comprises lamp pearl plate, reflector and light cover, radiator inside is hollow cavity, in hollow cavity, be fixed with gripper shoe, described gripper shoe is parallel with radiator central axis, in gripper shoe lower end, is provided with thermal diffusion plate, described thermal diffusion plate and lamp pearl backboard face are affixed, and the sidewall of thermal diffusion plate and the inwall of hollow cavity are affixed.Gripper shoe is divided into a plurality of heat radiations road by hollow cavity, and the heat part that thermal diffusion plate absorbs is by heat sink radiates, and another part outwards distributes by heat radiation road.Thermal diffusion plate effectively reduces from the next heat flow density of lamp pearl plate, guarantees without heat localization phenomenon, reduces the temperature of LED, improves the life-span of LED.
As preferably, in the upper end of radiator, be provided with fan, between described fan and radiator, leave interval.Radiator collocation fan carries out active heat removal, has not only improved radiating effect, also can reduce the weight of radiator, the radiator few 2/3 of weight ratio traditional natural convection current.
In order to improve the degree that is connected firmly of bulkhead lamp capable, reduce the stressed of lamp holder, as preferably, in bulb socket lower end, be provided with Connection Block, on bulb socket, edge is circumferentially with flange, at flange, be arranged with the collar outward, collar upper end is provided with in-flanges, and outer lamp socket lower end correspondence is provided with flanging, and described flanging is located in the collar and is offseted with in-flanges, described flange and the flanging of outer lamp socket offset, and the collar is threaded with Connection Block.
As preferably, ventilation strip top at plastic shell is provided with cowling, in plastic shell, be provided with in order to the fixing support of plastic shell, described support comprises transverse slat, at the two ends of transverse slat, be arranged with two card arms, the end of card arm is provided with card base, and card base is stuck in the draw-in groove in plastic shell, and described transverse slat, cowling are fixedly linked by screw and Connection Block.Thus, plastic shell and lamp holder, bulb socket are linked together.
Adopted design philosophy of the present invention and the beneficial effect of technique scheme to be:
1, this Mining lamps and lanterns is for replaceability, versatility, and safe and reliable fixedly light fixture function.And easy for installation, it is convenient to replace, applicable various lamp holder types, such as E27, E26, E29 etc., or direct wiring etc., without other lamp installation equipment of collocation.
2, this light fixture radiating mode adopts active heat removal, i.e. radiator collocation fan, not only makes heat radiation more efficient, and makes the radiator few 2/3 of the weight ratio traditional natural convection current of radiator.
3, detachable dustproof cover design, is not affecting under heat dissipation channel situation, reduces in metallic dust and air suspension and enters lamp body and be attached on radiator, effectively improves safety and the service life of light fixture, and can regular dismounting clean.
4, effectively noise control, is being used under the situation of fan, has carried out special wind-guiding design, effectively reduces noise at the about 35dB of 1M.
5, High Efficiency Thermal diffuser plate embeds design, reduces heatsink weight, and effectively by the low heat flow density of coming from aluminium base, guarantees without heat localization phenomenon, reduces the temperature of LED, improves the life-span of LED.
6, plastic shell design, guarantees that housing contacts face do not scald, not scratch hand, and effectively guarantee the product texture of outward appearance, and rationally control heat dissipation channel.
7, power pack and LED separate design, make two thermal source separation, the effectively heat affecting between reduction mutually, the life-span of improving LED and power supply; And in this light fixture, do not affect the efficiently radiates heat of power unit.
Accompanying drawing explanation
Fig. 1 is the stereogram of LED bulkhead lamp capable in the embodiment of the present invention;
Fig. 2 is another stereogram of LED bulkhead lamp capable in the embodiment of the present invention;
Fig. 3 is the cutaway view of LED bulkhead lamp capable in the embodiment of the present invention;
Fig. 4 is the A portion enlarged drawing of Fig. 3;
Fig. 5 is the explosive view of LED bulkhead lamp capable in embodiment;
Fig. 6 is the explosive view of LED bulkhead lamp capable other direction in embodiment;
Fig. 7 is the A portion enlarged drawing of Fig. 5;
Fig. 8 is the A portion enlarged drawing of Fig. 6.
The specific embodiment
The specific embodiment of the present invention is as follows:
Embodiment: as shown in Fig. 1～6, a kind of LED bulkhead lamp capable of the present embodiment, comprises power pack 1, lamp body, described lamp body has threaded lamp holder 2, and described power pack 1 is connected by lamp socket with lamp body; Specifically, described lamp socket is comprised of the inside and outside lamp socket 3,4 connecting together, inside and outside lamp socket 3,4 integral body are all cylindrical, and inside and outside lamp socket 3,4 inside are hollow, one end of inside and outside lamp socket 3,4 has opening, interior lamp socket 3 is socketed in outer lamp socket 4, interior lamp socket 3 has internal thread, on power pack 1 bottom surface, be provided with the groove 5 matching with outer lamp socket 4 shapes, the upper end of outer lamp socket 4 is arranged in groove 5, after inside and outside lamp socket 3,4 connects together, by screw, is connected with power pack 1; And the lamp holder 2 of lamp body is threaded with interior lamp socket 3.
Just because of this makes this light fixture have replaceability, in the time need to replacing the lamp of different model, only need to change to mate the interior lamp socket using with lamp holder, very convenient.
The concrete structure of lamp body is as follows:
As shown in Figure 1 to 4, described lamp body includes lamp holder 2, bulb socket 6, radiator 7, lamp holder 2 with bulb socket 6 for being threaded, in radiator 7, be provided with LED luminescence component, outside radiator 7, be provided with plastic shell 8, plastic shell 8 is horn-like, equal opening up and down, in plastic shell 8, be provided with screw installation position 44, radiator 7 is connected by screw with plastic shell 8, between radiator 7 and plastic shell 8, leave certain gap, this part gap forms heat dissipation channel 15, described heat dissipation channel 15 is connected with outside air by the opening at the upper and lower two ends of plastic shell.
As shown in Figure 5, Figure 6, described LED luminescence component comprises lamp pearl plate 9, reflector 10 and light cover 11, radiator 7 inside are hollow cavity, are fixed with gripper shoe in hollow cavity, and gripper shoe is comprised of the flat board 12 of two crisscrosses, two flat boards 12 are all parallel with the central axis of radiator 7, in gripper shoe lower end, be provided with thermal diffusion plate 13, described thermal diffusion plate 13 is affixed with lamp pearl plate 9 back sides, and the sidewall of thermal diffusion plate 13 and the inwall of hollow cavity are affixed.
In radiator 7 outers, be circumferentially with a plurality of fin 14, between adjacent fin 14, also form a part of heat dissipation channel between two, in radiator 7 lower ends, be provided with end cap 16, described end cap 16 is a torus, end cap 16 is placed on outside light cover 11, on end cap 16, be circumferentially with a plurality of air-vents 17, the heat dissipation channel between each air-vent 17 and radiator 7 and plastic shell 8, the heat dissipation channel between adjacent fin 14 is connected between two.
Upper end at heat radiation 7 devices is provided with fan 18, and fan 18 is connected by screw with plastic shell 8, between described fan 18 and radiator 7, leaves interval.The heat radiation road that the wind part that fan 18 produces is divided into by gripper shoe blows to thermal diffusion plate 13, and the heat that another part produces radiator 7 is taken out of lamp body from air-vent 17.
Unimpeded for guaranteeing plastic shell upper end air, in plastic shell 8 upper ends, be provided with ventilation strip 19, described ventilation strip 19 is to be enclosed and formed by the many ribs 20 that are circumferentially upwards convexly equipped with along plastic shell 8 upper end open, 20 of adjacent ribs leave ventilation gap 21 between two, are arranged with dust cover 22 outside ventilation strip 19.
Shown dust cover 22 comprises the Air Filter assembly that is sheathed on the support outside ventilation strip and is arranged on stent side portion, described support comprises the collar 23, lower collar 24 and connects the support arm 25 of the upper and lower collar 23,24, support arm 25 is at least two, generally can be three, between every two adjacent support arms 25, an Air Filter assembly is housed, described Air Filter assembly is comprised of inside casing 26, housing 27 and the Air Filter 28 that is fixed between internal and external frames 26,27.
Specifically, inside casing 26 is to adopt following syndeton to install to fix with support, and as shown in Figure 7, Figure 8, on the upper collar 23, edge is circumferentially with a plurality of through holes 29, in inside casing 26 upper limb correspondences, be provided with a plurality of convex tendons 30, described convex tendon 20 snaps in through hole 29 also spacing by the upper collar 23; In lower collar 24, along the circumferential convex circle limit rib 30 that is provided with, be evenly provided with a plurality of breach 31 on limit rib 30, on the lower edge of inside casing 26, correspondence is provided with a plurality of snapping teeth 32, and snapping tooth 32 is stuck on the inwall of lower collar 24 through breach 31.
The inner surface of housing 27 is provided with a plurality of salient points 33, outer surface correspondence at inside casing 26 is provided with a plurality of installing holes 34, Air Filter 28 is placed between interior housing, and interior housing is together involutory, and described salient point 33 is buckled in installing hole 34, thereby realize being connected of internal and external frames and Air Filter.
The annexation of lamp holder 2, bulb socket 6 and plastic shell 8 is as described below:
As shown in Fig. 3～Fig. 6, in bulb socket 6 lower ends, be provided with Connection Block 35, on bulb socket 6, edge is circumferentially with flange 36, outside flange 36, be arranged with the collar 37, the collar 37 upper ends are provided with in-flanges 38, outer lamp socket 4 lower end correspondences are provided with flanging 39, as shown in Figure 5, the collar 37 slides to outer lamp socket 4 lower ends by outer lamp socket 4 upper ends, make described flanging 39 be placed in the collar 37 and offset with in-flanges 38, and described flange 36 is now placed in the groove of Connection Block 35 upper ends, flange 36 offsets with the flanging 39 of outer lamp socket 4, the collar 37 has internal thread, Connection Block 35 has external screw thread, the collar 37 is threaded with Connection Block 35.
Each parts annexation of the present invention is ingenious, all has replaceability, and convenient for maintaining, has reduced maintenance cost.
Claims (9)
1. a LED bulkhead lamp capable, comprises power pack, lamp body, it is characterized in that: described power pack is connected by lamp socket with lamp body, described lamp socket is comprised of the inside and outside lamp socket connecting together, and inside and outside lamp socket is connected with power pack by screw, and the lamp holder of lamp body is threaded with interior lamp socket; Described lamp body includes lamp holder, bulb socket, radiator, in bulb socket lower end, be provided with Connection Block, on bulb socket, edge is circumferentially with flange, at flange, be arranged with the collar outward, collar upper end is provided with in-flanges, outer lamp socket lower end correspondence is provided with flanging, the collar slides to outer lamp socket lower end by outer lamp socket upper end, make flanging be placed in the collar and offset with in-flanges, and flange is now placed in the groove of Connection Block upper end, the flanging of flange and outer lamp socket offsets, and the collar has internal thread, Connection Block has external screw thread, and the collar is threaded with Connection Block.
2. a kind of LED bulkhead lamp capable according to claim 1, is characterized in that: on power pack bottom surface, be provided with the groove matching with outer lamp socket shape, the upper end of outer lamp socket is arranged in groove.
3. a kind of LED bulkhead lamp capable according to claim 1, it is characterized in that: in radiator, be provided with LED luminescence component, at radiator, be provided with plastic shell outward, between radiator and plastic shell, leave heat dissipation channel, described heat dissipation channel is connected with outside air by the opening at the upper and lower two ends of plastic shell.
4. a kind of LED bulkhead lamp capable according to claim 3, it is characterized in that: in plastic shell upper end, be provided with ventilation strip, described ventilation strip is comprised of many ribs that are circumferentially upwards convexly equipped with along plastic shell upper end open, between adjacent rib, leave ventilation gap between two, at ventilation strip, be arranged with dust cover outward.
5. a kind of LED bulkhead lamp capable according to claim 4, it is characterized in that: shown in dust cover comprise the Air Filter assembly that is sheathed on the support outside ventilation strip and is arranged on stent side portion, described support comprises the collar, lower collar and connects the support arm of the upper and lower collar, between every two adjacent support arms, an Air Filter assembly is housed, described Air Filter assembly is comprised of inside casing, housing and the Air Filter that is fixed between interior housing.
6. a kind of LED bulkhead lamp capable according to claim 3, it is characterized in that: described radiator is connected with plastic shell by screw, in radiator outer, be circumferentially with a plurality of fin, in radiator lower end, be provided with end cap, described end cap is a torus, on torus, be circumferentially with a plurality of air-vents, each air-vent is all connected with heat dissipation channel.
7. a kind of LED bulkhead lamp capable according to claim 3, it is characterized in that: described LED luminescence component comprises lamp pearl plate, reflector and light cover, radiator inside is hollow cavity, in hollow cavity, be fixed with gripper shoe, described gripper shoe is parallel with radiator central axis, in gripper shoe lower end, is provided with thermal diffusion plate, described thermal diffusion plate and lamp pearl backboard face are affixed, and the sidewall of thermal diffusion plate and the inwall of hollow cavity are affixed.
8. a kind of LED bulkhead lamp capable according to claim 7, is characterized in that: the upper end at radiator is provided with fan, between described fan and radiator, leaves interval.
9. a kind of LED bulkhead lamp capable according to claim 4, it is characterized in that: the ventilation strip top at plastic shell is provided with cowling, in plastic shell, be provided with in order to the fixing support of plastic shell, described support comprises transverse slat, at the two ends of transverse slat, be arranged with two card arms, the end of card arm is provided with card base, and card base is stuck in the draw-in groove in plastic shell, and described transverse slat, cowling are fixedly linked by screw and Connection Block.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110404840.0A CN102494278B (en) | 2011-12-08 | 2011-12-08 | Light-emitting diode (LED) mining lamp |
| PCT/CN2012/077125 WO2013082928A1 (en) | 2011-12-08 | 2012-06-19 | Led industrial and mining lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110404840.0A CN102494278B (en) | 2011-12-08 | 2011-12-08 | Light-emitting diode (LED) mining lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102494278A CN102494278A (en) | 2012-06-13 |
| CN102494278B true CN102494278B (en) | 2014-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110404840.0A Active CN102494278B (en) | 2011-12-08 | 2011-12-08 | Light-emitting diode (LED) mining lamp |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102494278B (en) |
| WO (1) | WO2013082928A1 (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494278B (en) * | 2011-12-08 | 2014-04-23 | 生迪光电科技股份有限公司 | Light-emitting diode (LED) mining lamp |
| CN103781228A (en) * | 2012-10-24 | 2014-05-07 | 深圳市鑫田威尔科技有限公司 | LED industrial and mineral lamp and circuit control method thereof |
| CN104421910A (en) * | 2013-09-09 | 2015-03-18 | 深圳市海洋王照明工程有限公司 | Lamp device and heat dissipating assembly of screw type lamp holder |
| CN103807718A (en) * | 2014-02-17 | 2014-05-21 | 盐城市吉亚特灯泡厂 | Motorcycle headlamp bulb |
| CN105841045A (en) * | 2016-04-02 | 2016-08-10 | 莫焕东 | Fixing device for stabilizing LED tunnel lamp |
| CN105805643A (en) * | 2016-04-02 | 2016-07-27 | 莫焕东 | Dustproof LED tunnel lamp fixing device capable of dissipating heat |
| CN105757541A (en) * | 2016-04-02 | 2016-07-13 | 莫焕东 | LED tunnel lamp fixing device |
| CN105757538A (en) * | 2016-04-02 | 2016-07-13 | 莫焕东 | Radiating LED tunnel lamp fixture |
| CN105864695A (en) * | 2016-04-02 | 2016-08-17 | 莫焕东 | LED tunnel lamp fixing device for traffic |
| CN105822963A (en) * | 2016-04-02 | 2016-08-03 | 莫焕东 | Fixing device for LED tunnel lamp |
| CN107363546A (en) * | 2017-07-31 | 2017-11-21 | 南通苏禾车灯配件有限公司 | A kind of five-axle turn-milling one equipment complex |
| CN108799876A (en) * | 2018-06-13 | 2018-11-13 | 贵州大学 | A kind of mine lamp of the mining with positioning function |
| CN108980703B (en) * | 2018-08-13 | 2024-04-19 | 广东汉通光电科技有限公司 | Industrial and mining lamp |
| CN108799953A (en) * | 2018-08-24 | 2018-11-13 | 中山市宙风照明电器有限公司 | A kind of Novel free screw bulkhead lamp |
| CN109373244A (en) * | 2018-12-04 | 2019-02-22 | 深圳市欧德姆光电有限公司 | A kind of great power LED anti-explosion floodlight |
| CN109882769A (en) * | 2019-03-08 | 2019-06-14 | 深圳市艾格斯特科技有限公司 | A kind of tunnel type LED lamp |
| CN113898895A (en) * | 2021-10-29 | 2022-01-07 | 湖南省永神科技有限公司 | High-power industrial and mining lamp for mine |
| CN115095824B (en) * | 2022-06-23 | 2023-06-30 | 山东科明光电科技有限公司 | Modularized LED lamp for industrial and mining use |
| CN118309991B (en) * | 2024-05-15 | 2024-11-01 | 苏州嘉励自动化科技有限公司 | Heat dissipation dust guide structure of linear light source lighting system |
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| CN201069131Y (en) * | 2007-08-03 | 2008-06-04 | 李桂芝 | Mining flameproof light |
| CN201608393U (en) * | 2010-02-06 | 2010-10-13 | 林海芳 | Cable plug of cap-lamp |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2013082928A1 (en) | 2013-06-13 |
| CN102494278A (en) | 2012-06-13 |
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Denomination of invention: Led industrial and mining lamp Effective date of registration: 20211018 Granted publication date: 20140423 Pledgee: Zhejiang Tongxiang Rural Commercial Bank Co.,Ltd. Wuzhen sub branch Pledgor: SENGLED OPTOELECTRONICS Co.,Ltd. Registration number: Y2021330001938 |
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