CN110360465A - A kind of pressure resistant type great power LED lamp array - Google Patents
A kind of pressure resistant type great power LED lamp array Download PDFInfo
- Publication number
- CN110360465A CN110360465A CN201910661930.4A CN201910661930A CN110360465A CN 110360465 A CN110360465 A CN 110360465A CN 201910661930 A CN201910661930 A CN 201910661930A CN 110360465 A CN110360465 A CN 110360465A
- Authority
- CN
- China
- Prior art keywords
- lamp body
- led
- plate
- annular groove
- led lamp
- 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.)
- Granted
Links
Classifications
-
- 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
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
- F21V29/89—Metals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V31/00—Gas-tight or water-tight arrangements
- F21V31/005—Sealing arrangements therefor
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The present invention relates to a kind of pressure resistant type great power LED lamp arrays, including lamp body, cavity is opened up respectively in the two sides of lamp body, in metallic heat radiating plate affixed in the cavity of lamp body side, metallic heat radiating plate surface, be sequentially arranged multilayer aluminum alloy heat-sink plate from inside to outside along the center of the metallic heat radiating plate, annular groove is formed between adjacent aluminium alloy heat sink and between outermost layer aluminium alloy heat sink and the inner wall of lamp body, in installing LED metal substrate in each annular groove respectively, each piece of LED metal substrate is affixed with metallic heat radiating plate；The present invention is suitable for Quan Haishen operating condition, it is with preferable Corrosion Protection, heat dissipation performance, pressure-resistant performance and illuminating effect, lamp body is made of titanium alloy material, inside installation red copper heat sink and aluminium alloy heat sink, the problem that heat dissipation performance difference in traditional structure is made up by the big advantage of red copper and aluminium alloy thermal conductivity height, specific heat capacity, effectively improves the heat dissipation performance of LED light battle array.
Description
Technical field
The present invention relates to hydrospace detection equipment technical fields more particularly to a kind of high-power applied to underwater pressure resistant type
LED light battle array.
Background technique
LED light is a kind of solid state light emitter, is limited by whole luminous efficiency, joint account current injection efficiency, radiation hair
Photo-quantum efficiency, chip exterior light extraction efficiency etc., only about the inputing power of 30%-40% is converted into luminous energy, remaining
The energy of 60%-70% is converted to heat.And temperature raising can further decrease luminous efficiency, therefore the heat control of LED light
As technology focus.The high-power underwater LED lamp applied at present generallys use the aluminum alloy materials of perfect heat-dissipating, but aluminium closes
The rotproofness of golden material is poor, in briny environment, even if carrying out surface hard oxidation processes, is also easy to broken by oxygen
Change, greatly reduces the service life of LED light battle array in this way, increase the cost and complexity of maintenance.
Main problem existing for the deep-sea high-powered LED lamp applied at present is:
(1) LED light of commonly used aluminium alloy pressure casing, perfect heat-dissipating, but corrosion resistance is poor, the LED light longevity
Order short, maintenance is at high cost；
(2) titanium alloy material intensity is high, is to be suitably applied the pressure-resistance structure of deep-sea high-pressure environment, and corrosion resistance
By force, it can be applied for a long time in briny environment, but heat dissipation performance is poor, need to handle heat dissipation well applied to high-powered LED lamp
Problem；
(3) it is applied to the titanium alloy pressure resistance LED light of Quan Haishen environment currently on the market, home and abroad is all difficult to buy hundred
The LED light of watt power level.
Summary of the invention
The applicant is directed to above-mentioned existing issue, has carried out Improvement, provides a kind of pressure resistant type great power LED lamp array,
Its problem that not only can solve titanium alloy heat dissipation performance difference, moreover it is possible to promote the reliability and applicability of high-powered LED lamp, be ocean
Detection provides reliable light units.
The technical solution adopted in the present invention is as follows:
A kind of pressure resistant type great power LED lamp array, including lamp body open up cavity, Yu Suoshu in the two sides of the lamp body respectively
Affixed metallic heat radiating plate in the cavity of lamp body side, on the surface of the metallic heat radiating plate, along the center of the metallic heat radiating plate
It is sequentially arranged multilayer aluminum alloy heat-sink plate from inside to outside, is dissipated between adjacent aluminium alloy heat sink and in outermost layer aluminium alloy
Annular groove is formed between hot plate and the inner wall of lamp body, in installing LED metal substrate in each annular groove respectively, each piece of LED metal substrate is equal
It is affixed with metallic heat radiating plate；The side also airtight connection light-transmitting plate of metallic heat radiating plate is installed in the lamp body, fixed cover presses
It is covered on the outer layer of light-transmitting plate and closed affixed with lamp body；LED drive circuit plate is installed in the cavity of the lamp body other side,
The output end of the LED drive circuit plate is connect with each piece of LED metal substrate by conducting wire, the LED drive circuit plate it is defeated
Enter end to connect with underwater electrical connector, the closed other side for being mounted on lamp body of the underwater electrical connector, in the other side of the lamp body
It is also closed affixed for being covered on the back shroud of LED drive circuit plate outer layer.
Its further technical solution is:
The junction of each layer aluminium alloy heat sink, LED metal substrate and metallic heat radiating plate and lamp body covers argentiferous silicon
Rouge；
The annular groove is annular groove, and the groove width of the annular groove is 4mm~4.5mm；
Adjacent annular groove arranged concentric each other；
Also open up multiple wire guides for conducting wire in the lamp body, each pilot hole connection and be provided with lamp body side
The threaded hole in face is connected to, each threaded hole and plug airtight connection；
Multiple concatenated LED lamp beads mutually, multiple LED lamp bead rows concatenated mutually are respectively provided on each piece of LED metal substrate
LED lamp bead group is arranged into, each group LED lamp bead group is in parallel each other；
Back shroud and lamp body are all made of titanium alloy material and are made.
Beneficial effects of the present invention are as follows:
The present invention is suitable for Quan Haishen operating condition, with preferable Corrosion Protection, heat dissipation performance, pressure-resistant performance and illumination
Effect, lamp body are made of titanium alloy material, and inside installation red copper heat sink and aluminium alloy heat sink pass through red copper and aluminium alloy
The advantage that thermal conductivity is high, specific heat capacity is big makes up the problem of heat dissipation performance difference in traditional structure, effectively improves the heat dissipation of LED light battle array
Performance.LED light is distributed in each annular groove using more, the small in size highlighted lamp bead of quantity, can improve heat dissipation, and reduce
Lamp body inner space volume is conducive to structure pressure resistance.
Detailed description of the invention
Fig. 1 is driving principle figure of the invention.
Fig. 2 is schematic cross-sectional view I of the invention.
Fig. 3 is schematic cross-sectional view II of the invention.
Fig. 4 is local overlooking schematic diagram of the invention.
Wherein: 1, back shroud；2, lamp body；3, plug；4, fixed cover；5, light-transmitting plate；6, metallic heat radiating plate；7, inner ring aluminium closes
Golden heat sink；8, inner ring LED copper base；9, middle ring aluminium alloy heat sink；10, middle ring LED copper base；11, outer ring aluminium alloy dissipates
Hot plate；12, outer ring LED copper base；13, fastening bolt；14, the first sealing ring；15, the second sealing ring；16, third sealing ring；
17, LED drive circuit plate；18, fastening bolt；19, underwater electrical connector.
Specific embodiment
Illustrate a specific embodiment of the invention below.
Shown in as shown in Figure 2, Figure 3 and Figure 4, a kind of pressure resistant type great power LED lamp array includes lamp body 2, front and back in lamp body 2
Face two sides open up cavity respectively, in the positive cavity of lamp body 2 by the affixed metallic heat radiating plate 6 of fastening bolt 18, the present embodiment
Middle metallic heat radiating plate 6 is red copper heat sink, the surface of metallic heat radiating plate 6, along the center of metallic heat radiating plate 6 from inside to outside successively
Arrange aluminium alloy heat sink, in the present embodiment aluminium alloy heat sink be inner ring aluminium alloy heat sink 7, middle ring aluminium alloy heat sink 9,
Outer ring aluminium alloy heat sink 11, above-mentioned each block of aluminium alloy heat sink are bolted on red copper heat dissipation plate surface.Adjacent
Annular groove is formed between aluminium alloy heat sink and between outermost layer aluminium alloy heat sink and the inner wall of lamp body 2, in each annular groove
LED metal substrate is installed respectively.Above-mentioned annular groove is annular groove, adjacent annular groove arranged concentric each other, the groove width of each annular groove
For 4mm~4.5mm.
As shown in Figure 2 and Figure 3, annular groove successively installs inner ring LED copper base 8, middle ring LED copper base 10 and outer from inside to outside
Ring LED copper base 12, inner ring LED copper base 8, middle ring LED copper base 10 and outer ring LED copper base 12 also with red copper heat sink
It is affixed.Above-mentioned red copper heat sink and inner ring aluminium alloy heat sink 7, middle ring aluminium alloy heat sink 9, outer ring aluminium alloy heat sink 11
The connection of junction and red copper heat sink and inner ring LED copper base 8, middle ring LED copper base 10 and outer ring LED copper base 12
Argentiferous high thermal conductivity silicone grease is smeared at place, and heat dissipation performance can be improved in this kind of silicone grease.
As shown in Figure 2 and Figure 3, the back side also airtight connection light-transmitting plate 5 of metallic heat radiating plate 6 is installed in lamp body 2, using saturating
It has the advantages that good pressure-resistant performance, light transmittance are high with tabula rasa 5, can bear external water pressure, close to the inner portion by the way that light-transmitting plate 5 is arranged
Aluminium alloy heat sink is withstood, and is not had biggish deflection and is adapted to Quan Haishen operating condition.Fixed cover 4, which presses, is covered on light-transmitting plate
5 outer layer is simultaneously closed affixed by the first sealing ring 14 with lamp body 2, opens up in the front of lamp body 2 for installing the first sealing ring
14 mounting groove.Light-transmitting plate 5 uses poly (methyl methacrylate) plate in the present embodiment, and fixed cover 4 is using the fixed cover of organic glass.Above-mentioned each piece
Aluminium alloy heat sink not only can support poly (methyl methacrylate) plate, but also can play heat sinking function.LED is installed to drive in the cavity at 2 back side of lamp body
Dynamic circuit board 17, the output end of LED drive circuit plate 17 are connect with each piece of LED metal substrate by conducting wire.
Also open up multiple wire guides for conducting wire in lamp body 2, each pilot hole connection and be provided with 2 side of lamp body
Threaded hole connection, each threaded hole and plug 3 pass through 15 airtight connection of the second sealing ring.Above-mentioned LED drive circuit plate 17 it is defeated
Enter end (110V power supply, dim signal etc.) to connect with underwater electrical connector 19, is connected by underwater electrical connector 19 with external equipment and is mentioned
Power supply source.It is close also to pass through third sealing ring 16 at the back side of lamp body 2 for the closed other side for being mounted on lamp body 2 of underwater electrical connector 19
The affixed back shroud 1 for being used to be covered on 17 outer layer of LED drive circuit plate is closed, above-mentioned third sealing ring 16 is mounted on back shroud 1
Sealing ring mounting groove in.
As shown in Figure 1, multiple concatenated LED lamp beads mutually are respectively provided in the present invention on each piece of LED metal substrate, it is multiple mutual
The LED lamp bead being connected in series is arranged in LED lamp bead group, and each group LED lamp bead group is in parallel each other.LED lamp bead uses in the present embodiment
The highlighted lamp bead of CREE company 3.45mm*3.45mm, single lamp bead power should using 76 up to 6W, lamp array provided by the invention
Type lamp bead.76 lamp beads are divided into 4 groups of parallel connection lamp beads, every group of 19 lamp beads series connection.LED drive circuit plate 17 is mainly by HV9910 core
Piece and its peripheral circuit composition, single lamp bead electric current can be configured to 1A by resistance value in LED drive circuit plate 17, and can connect
External PWM signal is received to be dimmed.It is empty that LED drive circuit plate 17 is mounted on the annulus that 2 back side width of titanium alloy lamp body is 13mm
It is intracavitary.The effective output of entire lamp array is up to 250W, and after tested, the luminous flux of present invention meaning titanium alloy LED light battle array can
Up to 20000lm or more, power 250W.
The present invention is suitable for Quan Haishen operating condition, with preferable Corrosion Protection, heat dissipation performance, pressure-resistant performance and illumination
Effect, lamp body are made of titanium alloy material, and inside installation red copper heat sink and aluminium alloy heat sink pass through red copper and aluminium alloy
The advantage that thermal conductivity is high, specific heat capacity is big makes up the problem of heat dissipation performance difference in traditional structure, effectively improves the heat dissipation of LED light battle array
Performance.LED light is distributed in each annular groove using more, the small in size highlighted lamp bead of quantity, can improve heat dissipation, and reduce
Lamp body inner space volume is conducive to structure pressure resistance.
The present invention is compared with the oil-filled type structure of tradition, and daily maintenance assembly is simple and convenient, and internal lamp bead and other components exist
Good illumination effect in atmospheric pressure environment, the service life is long, and power is adjusted up to 250W or more by external PWM dim signal in real time
Photocontrol, luminous flux are greatly improved up to 20000lm or more, underwater lighting effect.
Above description is explanation of the invention, is not intended to limit the invention, and limited range of the present invention is referring to right
It is required that the present invention can make any type of modification without prejudice to basic structure of the invention.
Claims (7)
1. a kind of pressure resistant type great power LED lamp array, it is characterised in that: including lamp body (2), distinguish in the two sides of the lamp body (2)
Open up cavity, affixed metallic heat radiating plate (6) in the cavity of Yu Suoshu lamp body (2) side, the table in the metallic heat radiating plate (6)
Face is sequentially arranged multilayer aluminum alloy heat-sink plate along the center of the metallic heat radiating plate (6) from inside to outside, radiates in adjacent aluminium alloy
Annular groove is formed between plate and between outermost layer aluminium alloy heat sink and the inner wall of lamp body (2), is installed respectively in each annular groove
LED metal substrate, each piece of LED metal substrate are affixed with metallic heat radiating plate (6)；Heat dissipation metal is installed in the lamp body (2)
The side of plate (6) also airtight connection light-transmitting plate (5), fixed cover (4) press the outer layer for being covered on light-transmitting plate (5) and with lamp body (2)
It is closed affixed；LED drive circuit plate (17) are installed in the cavity of the lamp body (2) other side, the LED drive circuit plate
(17) output end is connect with each piece of LED metal substrate by conducting wire, the input terminal and watertight of the LED drive circuit plate (17)
Connector (19) connection, the closed other side for being mounted on lamp body (2) of underwater electrical connector (19), in the another of the lamp body (2)
Side is also closed affixed for being covered on the back shroud (1) of LED drive circuit plate (17) outer layer.
2. a kind of pressure resistant type great power LED lamp array as described in claim 1, it is characterised in that: each layer aluminium alloy heat sink,
The junction of LED metal substrate and metallic heat radiating plate and lamp body (2) covers argentiferous silicone grease.
3. a kind of pressure resistant type great power LED lamp array as described in claim 1, it is characterised in that: the annular groove is annular groove, institute
The groove width for stating annular groove is 4mm~4.5mm.
4. a kind of pressure resistant type great power LED lamp array as claimed in claim 3, it is characterised in that: adjacent annular groove concentric cloth each other
It sets.
5. a kind of pressure resistant type great power LED lamp array as described in claim 1, it is characterised in that: also opened up in the lamp body (2)
Multiple wire guides for conducting wire, each pilot hole are connected to and are connected to the threaded hole for being provided with lamp body (2) side, each screw thread
Hole and plug (3) airtight connection.
6. a kind of pressure resistant type great power LED lamp array as described in claim 1, it is characterised in that: on each piece of LED metal substrate
Multiple concatenated LED lamp beads mutually are set, and multiple concatenated LED lamp beads mutually are arranged in LED lamp bead group, each group LED lamp bead group
It is in parallel each other.
7. a kind of pressure resistant type great power LED lamp array as described in claim 1, it is characterised in that: back shroud (1) and lamp body (2)
Titanium alloy material is all made of to be made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910661930.4A CN110360465B (en) | 2019-07-22 | 2019-07-22 | Withstand voltage type high-power L ED lamp array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910661930.4A CN110360465B (en) | 2019-07-22 | 2019-07-22 | Withstand voltage type high-power L ED lamp array |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110360465A true CN110360465A (en) | 2019-10-22 |
| CN110360465B CN110360465B (en) | 2020-08-04 |
Family
ID=68221464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910661930.4A Active CN110360465B (en) | 2019-07-22 | 2019-07-22 | Withstand voltage type high-power L ED lamp array |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110360465B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201448651U (en) * | 2009-07-06 | 2010-05-05 | 陈展新 | Led lamp panel |
| CN203325367U (en) * | 2013-05-21 | 2013-12-04 | 陈亚兴 | Sub-indoor LED display screen |
| CN207438511U (en) * | 2017-11-29 | 2018-06-01 | 河南宝鸿光电股份有限公司 | A kind of LED lamp holder of easy disassembly |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201137840Y (en) * | 2007-12-24 | 2008-10-22 | 林佛振 | Ceiling lamp |
| CN203309731U (en) * | 2013-05-31 | 2013-11-27 | 海星海事电气集团有限公司 | LED (Light Emitting Diode) explosion-proof underwater illuminating lamp |
| CN203404664U (en) * | 2013-09-06 | 2014-01-22 | 江苏海事职业技术学院 | LED lighting lamp suitable for marine environment |
| CN205174139U (en) * | 2015-12-03 | 2016-04-20 | 深圳市德威胜潜水工程有限公司 | Down lamp and ocean oil gas development equipment |
| CN108150958A (en) * | 2017-11-30 | 2018-06-12 | 安徽西马新能源技术有限公司 | A kind of LED car lamp |
| CN108332110A (en) * | 2018-03-22 | 2018-07-27 | 苏州蛟视智能科技有限公司 | A kind of underwater illuminating device |
-
2019
- 2019-07-22 CN CN201910661930.4A patent/CN110360465B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201448651U (en) * | 2009-07-06 | 2010-05-05 | 陈展新 | Led lamp panel |
| CN203325367U (en) * | 2013-05-21 | 2013-12-04 | 陈亚兴 | Sub-indoor LED display screen |
| CN207438511U (en) * | 2017-11-29 | 2018-06-01 | 河南宝鸿光电股份有限公司 | A kind of LED lamp holder of easy disassembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110360465B (en) | 2020-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101975342B (en) | Metal and ceramic mixed heat-dissipating LED ball bulb lamp | |
| CN201443739U (en) | LED explosion proof lamp | |
| CN103052844A (en) | LED lighting module and lighting lamp using same | |
| CN201335272Y (en) | Light-emitting diode fluorescent light | |
| MX2011005992A (en) | Radially-shaped heat dissipating apparatus, and bulb-shaped led lighting apparatus using same. | |
| CN101373061B (en) | LED light fitting | |
| CN102648374A (en) | Retrofit LED-lamp | |
| CN2713301Y (en) | Spotlight radiator and spotlight | |
| CN101975352B (en) | Integrated LED mine lamp with high heat radiation efficiency | |
| CN201069133Y (en) | LED lamp | |
| CN102486264A (en) | Radiator directly-touching type light-emitting diode (LED) light source | |
| CN101093828A (en) | Structure for packaging compact type large power light emitting diode | |
| CN110360465A (en) | A kind of pressure resistant type great power LED lamp array | |
| CN201748246U (en) | Multi-chip high-power LED light source | |
| CN2901016Y (en) | Light emitting unit of LED | |
| CN202032410U (en) | High-power LED (light-emitting diode) bulkhead lamp | |
| CN102330895A (en) | Disconnectable LED (Light Emitting Diode) lamp structure | |
| CN202561588U (en) | Energy-saving high-power light-emitting diode (LED) street lamp | |
| CN201973475U (en) | Metal and ceramic mixed heat radiation LED bulb lamp | |
| CN2916931Y (en) | Compact high-power LED encapsulation structure | |
| CN201547725U (en) | Heat dissipation device of LED lamp | |
| CN201262381Y (en) | LED lamp | |
| CN100504159C (en) | Integral heat dissipation LED road lamp | |
| CN104006320A (en) | LED (Light Emitting Diode) explosion-proof lamp with closed optical chamber | |
| CN201875469U (en) | LED (light-emitting diode) lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |