CN113280282A - Lighting lamp - Google Patents

Lighting lamp Download PDF

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Publication number
CN113280282A
CN113280282A CN202110411386.5A CN202110411386A CN113280282A CN 113280282 A CN113280282 A CN 113280282A CN 202110411386 A CN202110411386 A CN 202110411386A CN 113280282 A CN113280282 A CN 113280282A
Authority
CN
China
Prior art keywords
quick
lamp
connection
power supply
box body
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.)
Pending
Application number
CN202110411386.5A
Other languages
Chinese (zh)
Inventor
李青
李赫然
周丽彬
杜冬冬
曹春雷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huzhou Mingshuo Optoelectronic Technology Co ltd
Dongxu Optoelectronic Technology Co Ltd
Tunghsu Technology Group Co Ltd
Original Assignee
Huzhou Mingshuo Optoelectronic Technology Co ltd
Dongxu Optoelectronic Technology Co Ltd
Tunghsu Technology Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Huzhou Mingshuo Optoelectronic Technology Co ltd, Dongxu Optoelectronic Technology Co Ltd, Tunghsu Technology Group Co Ltd filed Critical Huzhou Mingshuo Optoelectronic Technology Co ltd
Priority to CN202110411386.5A priority Critical patent/CN113280282A/en
Publication of CN113280282A publication Critical patent/CN113280282A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00Fastening of light sources or lamp holders
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00Fastening of light sources or lamp holders
    • F21V19/001Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • F21V23/06Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10Outdoor lighting
    • F21W2131/101Outdoor lighting of tunnels or the like, e.g. under bridges
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Abstract

The invention discloses an illuminating lamp which comprises a box body (10), a driving power supply (20), an illuminating module (30) and a quick-connection lamp holder (40); the driving power supply (20) is arranged in the box body (10), the driving power supply (20) is provided with an input port and an output port, and the input port is used for being connected with an external power supply; one end of the quick-connection lamp holder (40) is electrically connected with the output port, and the other end of the quick-connection lamp holder is positioned outside the box body (10) and is used for the insertion of the lighting module (30); the lighting module (30) is provided with a positioning part which can be positioned on the quick-connection lamp holder (40), and the positioning part is configured to be electrically connected with the quick-connection lamp holder (40). The illuminating lamp disclosed by the invention can realize tool-free maintenance and has the advantages of simplicity and easiness in installation and convenience in maintenance.

Description

Lighting lamp
Technical Field
The invention relates to the technical field of illumination, in particular to an illuminating lamp.
Background
At present, most tunnels still use the traditional high-pressure sodium lamps, and lamps of the light sources have the advantages of high power consumption, short service life, troublesome disassembly and high maintenance cost, and are difficult to meet the national requirements of energy conservation and emission reduction. However, in order to respond to the national policies and requirements for energy conservation and emission reduction, part of the traditional street lamps are replaced by LED tunnel lamps in part of the current regions, but most of the LED street lamps are integrated LED whole lamps or module lamps which can be maintained only by special tools, and the LED street lamps are complex in installation procedure, low in installation efficiency, high in maintenance cost and not beneficial to large-area popularization.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides an illuminating lamp which can be maintained without tools and has the advantages of simplicity in installation and convenience in maintenance.
In order to achieve the purpose, the invention provides an illuminating lamp which comprises a box body, a driving power supply, an illuminating module and a quick-connection lamp holder, wherein the box body is provided with a light source; the driving power supply is arranged in the box body and is provided with an input port and an output port, and the input port is used for being connected with an external power supply; one end of the quick-connection lamp holder is electrically connected with the output port, and the other end of the quick-connection lamp holder is positioned outside the box body and used for the insertion of the lighting module; the lighting module is provided with a positioning part which can be positioned on the quick-connection lamp holder, and the positioning part is configured to be electrically connected with the quick-connection lamp holder.
Optionally, the lighting module includes radiator, LED light source and waterproof public seat, waterproof public seat is regarded as location portion set up in the radiator, connect the lamp stand soon have with waterproof public matched with female seat interface, the LED light source install in the radiator and pass through waterproof public seat with connect lamp stand electrical connection soon.
Optionally, the lighting module includes a lens and a pressing ring, the pressing ring is fixedly mounted on the heat sink, and the lens is mounted on the pressing ring and arranged corresponding to the LED light source.
Optionally, the lighting lamp includes a lock catch, the lock catch is mounted on the outer wall of the box body, and the lighting module is provided with a clamping groove matched with the lock catch.
Optionally, the lighting lamp includes a socket, the socket is located in the box body and provides an electrical connection between the quick-connect lamp holder and the output port.
Optionally, the lighting lamp includes a quick-connect terminal located in the box and providing an electrical connection between the input port and the external power supply.
Optionally, the light includes the clamp, the clamp is fixed to be set up inside the box, the clamp has elasticity in order to be able to the centre gripping and release drive power supply.
Optionally, the lighting lamp includes an adjustment assembly configured to provide a connection between an external mounting base and the housing and allow the housing to adjust the angle of inclination.
Optionally, the adjusting assembly includes a mounting bracket and a toothed disc; one end of the mounting bracket is fixedly connected with the mounting base, and the other end of the mounting bracket is connected with the fluted disc; the box body is provided with a toothed ring matched with the fluted disc; the toothed disc is configured to be movable between an engaged position engaging the toothed ring and a disengaged position disengaging the toothed ring.
Optionally, the adjusting assembly includes a handle screw, the fluted disc and the toothed ring are respectively provided with a first threaded hole and a second threaded hole, and the handle screw can be respectively connected with the first threaded hole and the second threaded hole to limit the fluted disc at the engagement position.
According to the technical scheme, one end of the quick-connection lamp holder is electrically connected with the output port, and the other end of the quick-connection lamp holder is located outside the box body and used for the lighting module to be plugged; the lighting module is provided with a positioning part which can be positioned on the quick-connection lamp holder, and the positioning part is configured to be electrically connected with the quick-connection lamp holder. Therefore, when the illuminating lamp is assembled, the illuminating module can be conveniently and quickly connected with the quick-connection lamp holder by means of the positioning part, and when the illuminating lamp needs maintenance, the illuminating module can be conveniently plugged with the quick-connection lamp holder or pulled out of the quick-connection lamp holder, so that tool-free maintenance is realized, and the convenience of maintenance is greatly improved.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
FIG. 1 is a schematic structural view of one embodiment of the illumination lamp of the present invention;
FIG. 2 is a front view of the light of the present invention;
FIG. 3 is a top view of the light of the present invention;
FIG. 4 is a bottom view of the cargo lamp of the present invention;
FIG. 5 is an exploded view of the components of the lamp of the present invention;
fig. 6 is an exploded view of a lighting module of the illumination lamp of the present invention.
Description of the reference numerals
10-a box body, wherein the box body is provided with a plurality of grooves,
20-a driving power supply for driving the motor,
30-lighting module, 31-radiator, 32-LED light source, 33-waterproof male seat, 34-lens, 35-pressing ring,
40-quickly connecting the lamp holder with the lamp holder,
50-the lock catch is arranged on the upper part of the main body,
60-the power strip is inserted in the power strip,
70-a quick-connect terminal, wherein,
80-a clamping hoop is arranged on the upper portion of the main body,
90-adjusting component, 91-mounting bracket, 92-fluted disc, 93-handle screw
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
As shown in fig. 1 to 6, the illumination lamp of the present invention includes a case 10, a driving power supply 20, an illumination module 30, and a quick-connect lamp socket 40; the driving power supply 20 is arranged in the box body 10, the driving power supply 20 is provided with an input port and an output port, and the input port is used for being connected with an external power supply source; one end of the quick-connection lamp holder 40 is used for being electrically connected with the output port, and the other end of the quick-connection lamp holder is positioned outside the box body 10 and used for being plugged in the lighting module 30; the lighting module 30 has a positioning portion that can be positioned at the quick-connect socket 40, and the positioning portion is configured to be electrically connectable with the quick-connect socket 40.
In the present invention, the driving power supply 20 functions as a transformer. One end of the quick-connection lamp holder 40 is electrically connected with the output port, and the other end of the quick-connection lamp holder is positioned outside the box body 10 and is used for the insertion of the lighting module 30; the lighting module 30 has a positioning portion that can be positioned at the quick-connect socket 40, and the positioning portion is configured to be electrically connectable with the quick-connect socket 40. Therefore, when the illumination lamp of the present invention is assembled, the illumination module 30 can be conveniently and quickly connected to the quick-connect lamp holder 40 by means of the positioning portion, and when the illumination lamp needs to be maintained, the illumination module 30 can be conveniently plugged into or pulled out from the quick-connect lamp holder 40, so that tool-free maintenance is realized, and the convenience of maintenance is greatly improved.
It should be understood that the lighting module 30 may be designed in various forms as long as it can be conveniently plugged into the quick-connect socket 40, in order to prolong the service life of the lighting module 30, in an embodiment of the present invention, as shown in fig. 6, the lighting module 30 includes a heat sink 31, an LED light source 32 and a waterproof male socket 33, the waterproof male socket 33 is disposed on the heat sink 31 as a positioning portion, the quick-connect socket 40 has a female socket interface matched with the waterproof male socket 33, and the LED light source 32 is mounted on the heat sink 31 and electrically connected with the quick-connect socket 40 through the waterproof male socket 33.
Wherein, radiator 31 can adopt integration die-casting aluminium or the extruded section preparation of finish work aluminium to form, and LED light source 32 can adopt COB integrated optical source or many dot matrix light sources, and waterproof public seat 32 can adopt nylon or PVC to mould plastics with the copper spare and form.
The heat sink 31 not only serves to provide a mounting base for the LED light source 32, but also reduces the operating temperature of the LED light source 32 through heat exchange with the outside, thereby securing the life span of the LED light source 32.
Further, in an embodiment of the present invention, as shown in fig. 6, the lighting module 30 further includes a lens 34 and a pressing ring 35, the pressing ring 35 is fixedly mounted on the heat sink 31, and the lens 34 is mounted on the pressing ring 35 and is disposed corresponding to the LED light source 32.
Specifically, the lens 34 is made of PC, PMMA or borosilicate glass, which plays a role in light redistribution and improves the illumination effect; the material of the clamping ring 35 is ADC12, which acts to stabilize the lens.
In order to further improve the installation stability of the lighting module 30, in an embodiment of the present invention, as shown in fig. 1, 3 and 5, the lighting lamp includes a latch 50, the latch 50 is installed on an outer wall of the housing 10, and the lighting module 30 has a slot matching with the latch 50.
According to the lighting lamp, the quick-connection lamp holder, the lighting module and the lock catch are designed, so that the steps of module screw fixation and wire external connection are omitted, the installation mode of directly inserting and pulling the module without tools can be realized, and the function of quick fixation is achieved.
Further, in one embodiment of the present invention, as shown in fig. 5, the illumination lamp further includes a socket 60, and the socket 60 is located in the housing 10 and provides an electrical connection between the quick-connect light socket 40 and the output port. The above-mentioned socket 60 is made of nylon or PVC and is injection-molded with copper, and is fixed inside the box body 10 to perform the electrical connection function.
In order to further improve the installation efficiency of the illumination lamp, in one embodiment of the present invention, as shown in fig. 5, the illumination lamp includes a quick-connect terminal 70, and the quick-connect terminal 70 is located in the case 10 and provides an electrical connection between the input port and the external power supply. In the above embodiment, the material of the quick-connection terminal 70 can be nylon or PVC and copper injection molding, and the quick-connection terminal 70 can save links such as wiring welding and winding, so that the quick-connection terminal is convenient to detach, and the installation and maintenance efficiency of the illuminating lamp is improved.
In order to improve the efficiency of installation and maintenance of the driving power source 20, in one embodiment of the present invention, as shown in fig. 5, the illumination lamp includes a clip 80, the clip 80 is fixedly disposed inside the case 10, and the clip 80 has elasticity to be able to clamp and release the driving power source 20. The clamp 80 can be made of spring steel, is fixed in the box body 10, plays a role in fixing the driving power supply 20, saves a screw fastening link by arranging the clamp 80, and improves the dismounting efficiency of the driving power supply 20.
Further, the illumination lamp further includes an adjustment assembly 90, and the adjustment assembly 90 is configured to provide a connection between the external mounting base and the housing 10 and allow the housing 10 to adjust the tilt angle. The inclination angle of the box 10 is adjusted by the adjusting component 90, so as to adjust the illumination angle of the illumination module 30.
It should be understood that the adjustment assembly 90 may be designed in various structures as long as it can adjust the inclination angle of the cabinet 10. In one embodiment of the present invention, as shown in fig. 1 and 5, the adjustment assembly 90 includes a mounting bracket 91 and a toothed disc 92; one end of the mounting bracket 91 is used for being fixedly connected with the mounting base, and the other end is connected with the fluted disc 92; the box body 10 is provided with a toothed ring matched with the toothed disc 92; the toothed plate 92 is configured to be movable between an engaged position engaging the toothed ring and a disengaged position disengaging the toothed ring.
To more conveniently restrain the toothed plate 92 in the engaged position so as to maintain the illumination angle of the illumination lamp within a desired angular range, in one embodiment of the present invention, the adjustment assembly 90 includes a handle screw 93, the toothed plate 92 and the toothed ring are respectively provided with first and second threaded holes, and the handle screw 93 can be connected with the first and second threaded holes respectively to restrain the toothed plate 92 in the engaged position.
When it is necessary to adjust the irradiation angle, the handle screws 93 are turned to disengage the toothed disc 92 from the toothed ring, and then the tilt angle of the case 10 is adjusted, and after the tilt angle adjustment of the case 10 is completed, the handle screws 93 are turned in the reverse direction to tighten the toothed disc 92 in the meshing position, thereby preventing the rotation of the toothed ring relative to the toothed disc 92, that is, the rotation of the case 10, so that the case 10 is maintained at the desired tilt angle.
The lamp provided by the invention is provided with the adjusting component 90, so that a traditional special angle adjusting tool is omitted, the adjusting efficiency is improved, and meanwhile, the angle adjusting precision is increased.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications may be made to the technical solution of the invention, and in order to avoid unnecessary repetition, various possible combinations of the invention will not be described further. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.

Claims (10)

1. The illuminating lamp is characterized by comprising a box body (10), a driving power supply (20), an illuminating module (30) and a quick-connection lamp holder (40);
the driving power supply (20) is arranged in the box body (10), the driving power supply (20) is provided with an input port and an output port, and the input port is used for being connected with an external power supply;
one end of the quick-connection lamp holder (40) is electrically connected with the output port, and the other end of the quick-connection lamp holder is positioned outside the box body (10) and is used for the insertion of the lighting module (30);
the lighting module (30) is provided with a positioning part which can be positioned on the quick-connection lamp holder (40), and the positioning part is configured to be electrically connected with the quick-connection lamp holder (40).
2. The lighting lamp, according to claim 1, characterized in that said lighting module (30) comprises a heat sink (31), a LED light source (32) and a waterproof male socket (33), said waterproof male socket (33) being said positioning portion being arranged on said heat sink (31), said quick-connect socket (40) having a female socket interface matching said waterproof male socket (33), said LED light source (32) being mounted on said heat sink (31) and being electrically connected with said quick-connect socket (40) through said waterproof male socket (33).
3. The lamp according to claim 2, characterized in that said lighting module (30) comprises a lens (34) and a pressing ring (35), said pressing ring (35) is fixedly mounted on said heat sink (31), said lens (34) is mounted on said pressing ring (35) and is disposed corresponding to said LED light source (32).
4. The illumination lamp according to claim 1, characterized in that the illumination lamp comprises a latch (50), the latch (50) is mounted on the outer wall of the box body (10), and the illumination module (30) is provided with a slot matched with the latch (50).
5. The lamp according to claim 1, characterized in that it comprises a power strip (60), said power strip (60) being located in said housing (10) and providing an electrical connection between said quick-connect lamp socket (40) and said outlet.
6. The cargo lamp according to claim 1, characterized in that it comprises a quick-connect terminal (70), said quick-connect terminal (70) being located in said box (10) and providing an electrical connection between said input port and said external power supply.
7. The cargo lamp according to claim 1, characterized in that the cargo lamp comprises a clip (80), the clip (80) being fixedly arranged inside the housing (10), the clip (80) having elasticity to be able to clamp and release the driving power source (20).
8. The cargo lamp according to any one of claims 1-7, characterized in that it comprises an adjustment assembly (90), said adjustment assembly (90) being configured to be able to provide a connection between an external mounting base and said tank (10) and to allow the tank (10) to adjust the angle of inclination.
9. The lighting lamp, according to claim 8, characterized in that said adjustment assembly (90) comprises a mounting bracket (91) and a toothed disc (92); one end of the mounting bracket (91) is fixedly connected with the mounting base, and the other end of the mounting bracket is connected with the fluted disc (92); the box body (10) is provided with a toothed ring matched with the fluted disc (92); the toothed disc (92) is configured to be movable between an engaged position engaging the toothed ring and a disengaged position disengaging the toothed ring.
10. The lamp, according to claim 9, characterized in that said adjustment assembly (90) comprises a handle screw (93), said toothed disc (92) and said toothed ring being provided with a first threaded hole and a second threaded hole, respectively, said handle screw (93) being connectable with said first threaded hole and said second threaded hole, respectively, to constrain said toothed disc (92) in said engaged position.
CN202110411386.5A 2021-04-16 2021-04-16 Lighting lamp Pending CN113280282A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110411386.5A CN113280282A (en) 2021-04-16 2021-04-16 Lighting lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110411386.5A CN113280282A (en) 2021-04-16 2021-04-16 Lighting lamp

Publications (1)

Publication Number Publication Date
CN113280282A true CN113280282A (en) 2021-08-20

Family

ID=77276974

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110411386.5A Pending CN113280282A (en) 2021-04-16 2021-04-16 Lighting lamp

Country Status (1)

Country Link
CN (1) CN113280282A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202101209U (en) * 2011-05-24 2012-01-04 上海柏宜照明电子有限公司 Portable LED (light-emitting diode) street lamp
CN103162129A (en) * 2011-12-15 2013-06-19 台积固态照明股份有限公司 Led lighting apparatus with flexible light modules
CN105090845A (en) * 2015-09-10 2015-11-25 福建鸿博光电科技有限公司 LED street lamp
CN207073743U (en) * 2017-06-21 2018-03-06 深圳市必拓电子股份有限公司 A kind of Waterproof LED floodlight
CN208635056U (en) * 2018-09-28 2019-03-22 杭州华普永明光电股份有限公司 A kind of LED light device
CN209744172U (en) * 2019-05-08 2019-12-06 浙江博上光电有限公司 high-power LED module type tunnel lamp
CN110542037A (en) * 2019-09-18 2019-12-06 横店集团得邦照明股份有限公司 Quick-maintenance wireless plug-in type LED street lamp and implementation method thereof
CN214468131U (en) * 2021-04-16 2021-10-22 湖州明朔光电科技有限公司 Lighting lamp

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202101209U (en) * 2011-05-24 2012-01-04 上海柏宜照明电子有限公司 Portable LED (light-emitting diode) street lamp
CN103162129A (en) * 2011-12-15 2013-06-19 台积固态照明股份有限公司 Led lighting apparatus with flexible light modules
CN105090845A (en) * 2015-09-10 2015-11-25 福建鸿博光电科技有限公司 LED street lamp
CN207073743U (en) * 2017-06-21 2018-03-06 深圳市必拓电子股份有限公司 A kind of Waterproof LED floodlight
CN208635056U (en) * 2018-09-28 2019-03-22 杭州华普永明光电股份有限公司 A kind of LED light device
CN209744172U (en) * 2019-05-08 2019-12-06 浙江博上光电有限公司 high-power LED module type tunnel lamp
CN110542037A (en) * 2019-09-18 2019-12-06 横店集团得邦照明股份有限公司 Quick-maintenance wireless plug-in type LED street lamp and implementation method thereof
CN214468131U (en) * 2021-04-16 2021-10-22 湖州明朔光电科技有限公司 Lighting lamp

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