CN103822105B - Light fixture - Google Patents

Light fixture Download PDF

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Publication number
CN103822105B
CN103822105B CN201210465766.8A CN201210465766A CN103822105B CN 103822105 B CN103822105 B CN 103822105B CN 201210465766 A CN201210465766 A CN 201210465766A CN 103822105 B CN103822105 B CN 103822105B
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CN
China
Prior art keywords
cylinder
light fixture
dividing plate
openend
housing
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.)
Active
Application number
CN201210465766.8A
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Chinese (zh)
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CN103822105A (en
Inventor
周明杰
梁欢
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.)
Oceans King Lighting Science and Technology Co Ltd
Oceans King Dongguan Lighting Technology Co Ltd
Shenzhen Oceans King Lighting Engineering Co Ltd
Original Assignee
Oceans King Lighting Science and Technology Co Ltd
Oceans King Dongguan Lighting Technology Co Ltd
Shenzhen Oceans King Lighting Engineering 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.)
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Application filed by Oceans King Lighting Science and Technology Co Ltd, Oceans King Dongguan Lighting Technology Co Ltd, Shenzhen Oceans King Lighting Engineering Co Ltd filed Critical Oceans King Lighting Science and Technology Co Ltd
Priority to CN201210465766.8A priority Critical patent/CN103822105B/en
Publication of CN103822105A publication Critical patent/CN103822105A/en
Application granted granted Critical
Publication of CN103822105B publication Critical patent/CN103822105B/en
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  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

A kind of light fixture, including:Housing, is tube structure, and the middle part of housing is provided with dividing plate, and the cavity of housing is divided into light-source chamber and electric chamber by dividing plate;Circuit board, is fixed on dividing plate on the surface of light-source chamber, and is close to dividing plate setting;Light source, is fixed on circuit board, and is electrically connected with circuit board, and circuit board is used for the working condition for controlling light source;Thermoelectricity sensing chip, is fixed on dividing plate on the surface of electric chamber, and is close to dividing plate setting, and thermoelectricity sensing chip is made up of thermoelectric material, for converting heat energy into electric energy;Fan, is fixed on electric intracavitary, the electrical connection of fan and thermoelectricity sensing chip;Wherein, the heat that light source and circuit board are produced gives thermoelectricity sensing chip, thermoelectricity sensing chip to produce the temperature difference after absorbing heat by separator plate conductive, so as to convert heat energy into electric energy, is powered to fan.Above-mentioned light fixture can effectively utilize heat energy, energy-conserving and environment-protective, and light fixture can be made to obtain preferably radiating effect.

Description

Light fixture
【Technical field】
The present invention relates to a kind of special lighting light fixture, more particularly to a kind of generated electricity using semiconductor chip drives fan cooling Light fixture.
【Background technology】
Traditional radiating mode is, by housing contact heating position, to transfer heat away from, its efficiency comparison in light fixture It is low, and non-uniform temperature.
【The content of the invention】
In view of above-mentioned condition, it is necessary to provide a kind of light fixture, heat energy can be effectively utilized, energy consumption is saved, and light fixture can be obtained Obtain preferably radiating effect.
A kind of light fixture, including:
Housing, is tube structure, and the middle part of the housing is provided with dividing plate, and the cavity of the housing is divided into by the dividing plate Light-source chamber and electric chamber;
Circuit board, is fixed on the dividing plate on the surface of the light-source chamber, and is close to the dividing plate setting;
Light source, is fixed on the circuit board, and is electrically connected with the circuit board, and the circuit board is used to control the light The working condition in source;
Thermoelectricity sensing chip, is fixed on the dividing plate on the surface of the electric chamber, and is close to the dividing plate and sets, The thermoelectricity sensing chip is made up of thermoelectric material, for converting heat energy into electric energy;And
Fan, is fixed on the electric intracavitary, the electrical connection of the fan and the thermoelectricity sensing chip;
Wherein, the light source and the heat of circuit board generation give the thermoelectricity sensing chip by the separator plate conductive, The thermoelectricity sensing chip produces the temperature difference after absorbing heat, so as to convert heat energy into electric energy, is powered to the fan, the fan Start working, the electronic component of the electric intracavitary is radiated.
The larger position of caloric value that thermoelectricity sensing chip is fixed on light fixture by above-mentioned light fixture, light fixture is passed heat by heat transfer Thermoelectricity sensing chip is passed, thermoelectricity sensing chip obtains heat energy, is converted into electric energy after producing the temperature difference, electric energy passes to wind by wire Fan, powers, fan is to the further radiating of light fixture to fan.Therefore, above-mentioned light fixture can effectively utilize heat energy, energy-conserving and environment-protective, and energy Light fixture is set to obtain preferably radiating effect.
In one of the embodiments, the both ends open of the housing, and including the first cylinder and with described first Second cylinder of body phase connection, the size of second cylinder is more than the size of first cylinder, so that second cylinder Stage portion is formed with the junction of first cylinder;Connection of the dividing plate located at second cylinder and first cylinder Place.
In one of the embodiments, in addition to rear shell, the rear shell is fixed on the openend of first cylinder, and Close the openend of first cylinder.
In one of the embodiments, the rear shell include substrate and on the one side of the substrate and with it is described Substrate annular flange connected vertically, the size of the annular flange is equal to the size of the openend of first cylinder, makes institute State annular flange to be contained in the openend of first cylinder, the substrate is stopped by the openend of first cylinder, makes The openend of first cylinder is completely covered by by the substrate.
In one of the embodiments, the lateral wall of first cylinder is provided with the fixed column with screw, described solid Fixed column is axially extending along first cylinder, and the periphery of the substrate is provided with lug, and threaded fastener passes through the lug Afterwards with the screwhole spiro bonding of the fixed column, so that the rear shell is fixed on the housing.
In one of the embodiments, multiple intervals are equipped with the lateral wall of first cylinder and second cylinder The radiating fin of setting, the radiating fin is axially arranged along first cylinder and second cylinder, and described The radiating fin of the radiating fin of one cylinder and second cylinder is staggered.
In one of the embodiments, in addition to protecgulum, the protecgulum is fixed on the openend of second cylinder, and The middle part of the protecgulum is provided with light-emitting window.
In one of the embodiments, in addition to Transparent Parts, the Transparent Parts seal the openend of second cylinder, and And the Transparent Parts are connected between the end face of the openend of the protecgulum and second cylinder.
In one of the embodiments, in addition to reflector, the reflector include osculum end and with osculum end phase To big opening end, the outer peripheral edge of the big opening end is provided around the big opening end one week, abutment flange in a ring, the abutting Flange is clamped between the end face of the openend of second cylinder and the Transparent Parts, and the light source is contained in the osculum End.
In one of the embodiments, in addition to sealing ring, the cross section of the sealing ring is U-shaped, make it is described abut it is convex Edge is coated in the sealing ring, the sealing ring be directly connected to the end face of the openend of second cylinder with it is described transparent Between part.
【Brief description of the drawings】
Fig. 1 is the stereogram of the light fixture of embodiment of the present invention;
Fig. 2 is the partial sectional view of light fixture shown in Fig. 1;
Fig. 3 is the axial sectional view of light fixture shown in Fig. 1.
【Embodiment】
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing Give the preferred embodiment of the present invention.But, the present invention can be realized in many different forms, however it is not limited to herein Described embodiment.On the contrary, the purpose for providing these embodiments is to make the understanding to the disclosure more saturating It is thorough comprehensive.
It should be noted that when element is referred to as another elements such as " being fixed on " " being connected to ", it can be directly another On one element or there can also be an element placed in the middle.When an element is considered as " connection " another element, it can be with It is directly to another element or may be simultaneously present centering elements.Term as used herein " vertically ", " level ", "left", "right" and similar statement for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more phases The arbitrary and all combination of the Listed Items of pass.
Refer to Fig. 1 to Fig. 3, the light fixture 100 of embodiment of the present invention, including housing 110, circuit board 120, light source 130, Thermoelectricity sensing chip 140 and fan 150.Housing 110 is mainly used in housing and bearer circuit plate 120, light source 130, thermoelectricity sensing chip 140 and fan 150.Circuit board 120 is used as the control module of light fixture 100, the thermoelectric conversion element the most of thermoelectricity sensing chip 140, wind Fan 150 as light fixture 100 heat dissipation element.
Housing 110 be tube structure, housing 110 can be one end open cylinder, or both ends open cylinder.Shell The shape of body 110 can also be set according to actual needs, for example, cylindrical shape, prismatic, truncated cone-shaped etc..The middle part of housing 110 is set There is dividing plate 112, the cavity of housing 110 is divided into light-source chamber 111 and electrically chamber 113 by dividing plate 112.In order to improve dividing plate 112 Thermal conductivity, it is preferable that dividing plate 112 is made of the preferable material of thermal conductivity, for example, copper, tungsten-copper alloy etc..Dividing plate 112 can be with It is integrally formed, or be molded respectively, is then removably secured again with housing 110.
Specifically in the illustrated embodiment, the both ends open of housing 110, and housing 110 include the first cylinder 114 and The second cylinder 115 being connected with the first cylinder 114.The size of second cylinder 115 is more than the size of the first cylinder 114, so that The junction of second cylinder 115 and the first cylinder 114 forms stage portion;Dividing plate 112 is located at the second cylinder 115 and the first cylinder 114 junction.Because the size of the second cylinder 115 is more than the size of the first cylinder 114 so that the light-source chamber 111 of housing 110 Space it is larger, the space of electric chamber 113 is smaller, ensure light-source chamber 111 enough be applicable in the case of, be effectively saved light fixture 100 space-consumings.Also, the first cylinder 114 is easily installed light fixture 100 as the fixing end of light fixture 100.
It should be noted that housing 110 is not limited to include the first cylinder 114 and the second cylinder 115 that size is differed, It can be the structure of other shapes, for example, housing 110 is single straight-cylindrical structure, form straight tube lamp.Therefore, the shape of housing 110 Shape can change according to actual conditions.
Circuit board 120 is fixed on the dividing plate 112 of housing 110 on the surface of light-source chamber 111, and is close to dividing plate 112 Set.Circuit board 120 is close to dividing plate 112 and set, i.e. the surface of circuit board 120 and the surface of dividing plate 112 directly against setting, Contact maximized face.Specifically in the illustrated embodiment, circuit board 120 is located at the middle part on the surface of the dividing plate 112, Circuit board 120 is fixed on dividing plate 112 by screw.
Light source 130 is fixed on circuit board 120, and is electrically connected with circuit board 120.Circuit board 120 can control light source 130 Working condition.Light source 130 can be LED/light source 130, Metal halogen lamp etc..Specifically in the illustrated embodiment, light source 130 is single Metal halogen lamp is held, it is directly fixed on circuit board 120 by lamp socket.
Thermoelectricity sensing chip 140 is fixed on dividing plate 112 on the surface of electric chamber 113, and is close to dividing plate 112 and sets. Thermoelectricity sensing chip 140 is made up of thermoelectric material, for converting heat energy into electric energy.Specifically in the illustrated embodiment, thermoelectricity The corresponding circuits plate 120 of sensing chip 140 is set.Because circuit board 120 and light source 130 are the heater element of light fixture 100, close circuit The position of plate 120 and light source 130 is the larger position of caloric value of light fixture 100, and the corresponding circuits plate 120 of thermoelectricity sensing chip 140 is set, Heat is absorbed maximizing, improves electric energy conversion efficiency.
Fan 150 is fixed in the electric chamber 113 of housing 110, the electrical connection of fan 150 and thermoelectricity sensing chip 140.Its In, the heat that light source 130 and circuit board 120 are produced is conducted to thermoelectricity sensing chip 140 by dividing plate 112, and thermoelectricity sensing chip 140 is inhaled The temperature difference is produced after receiving heat, so as to convert heat energy into electric energy, is powered electricity to fan 150, fan 150 is started working, to housing Electronic component in 110 electric chamber 113 is radiated.
Further, light fixture 100 also includes rear shell 160, and rear shell 160 is fixed on the opening of the first cylinder 114 of housing 110 End, and close the openend of the first cylinder 114., can when the electrical equipment in the light-source chamber 111 of housing 110 breaks down Overhauled, without whole housing 110 is opened, can be conveniently overhauled by rear shell 160.
Specifically in the illustrated embodiment, rear shell 160 includes substrate 161 and annular flange 163.Annular flange 163 is set In on the one side of substrate 161, and with the annular flange connected vertically of substrate 161 163.The size of annular flange 163 is equal to the The size of the openend of one cylinder 114, makes annular flange 163 be contained in the openend of the first cylinder 114, and substrate 161 is by The openend of one cylinder 114 stops, the openend of the first cylinder 114 is completely covered by by substrate 161.Because rear shell 160 is used Embedded mounting means, its sealing is preferable, and fixation is more firm, difficult for drop-off.
Shell 160 after dismantling for convenience, the lateral wall of the first cylinder 114 of housing 110 is provided with the fixation with screw Post 114a, fixed column 114a are axially extending along the first cylinder 114, and the periphery of substrate 161 is provided with lug 161a, screw threads for fastening Part passes through the screwhole spiro bonding with fixed column 114a after lug 161a, so that rear shell 160 is fixed on housing 110.Due to fixation Post 114a, along the axially extending of the first cylinder 114, so as to play a part of reinforcement, makes on the lateral wall of housing 110 The structural strength for obtaining housing 110 is higher.
Be equipped with for the ease of radiating, on the first cylinder 114 of housing 110 and the lateral wall of the second cylinder 115 it is multiple between Every the radiating fin 117 of setting, first cylinder 114 and second cylinder 115 of the radiating fin 117 along housing 110 it is axially arranged, And the radiating fin 117 of the radiating fin 117 of the first cylinder 114 of housing 110 and the second cylinder 115 of housing 110 interlocks Set.Due to the radiating fin 117 of the radiating fin 117 and the second cylinder 115 of housing 110 of the first cylinder 114 of housing 110 It is staggered so that radiating fin 117 is distributed more uniform, it is to avoid heat is concentrated, so as to improve the radiating efficiency of light fixture 100.
Further, light fixture 100 also includes protecgulum 170, and protecgulum 170 is fixed on the openend of the second cylinder 115, and preceding The middle part of lid 170 is provided with light-emitting window.The light that light source 130 in the light-source chamber 111 of housing 110 is sent, passes through going out for protecgulum 170 Optical port is projected.Specifically in the illustrated embodiment, protecgulum 170 is cylindrical shape, and second of protecgulum 170 and housing 110 The openend threaded connection of body 115.
Further, light fixture 100 also includes Transparent Parts 180, and the second cylinder 115 of the seal casinghousing 110 of Transparent Parts 180 is opened Mouthful end, and Transparent Parts 180 are connected between the end face of the openend of the second cylinder 115 of protecgulum 170 and housing 110.It is transparent Part 180 can be clear glass, transparent plastic sheet etc..
Further, light fixture 100 also includes reflector 190.Reflector 190 includes osculum end and relative with osculum end big Mouth end.The outer peripheral edge of big opening end is provided around big opening end one week, abutment flange 191 in a ring.Abutment flange 191 is clamped in shell Between the end face and Transparent Parts 180 of the openend of second cylinder 115 of body 110, light source 130 is contained in the osculum of reflector 190 End.Because reflector 190 is connected to openend and the Transparent Parts 180 of the second cylinder 115 of housing 110 using abutment flange 191, When needing to change light source 130, protecgulum 170 is turned on, it is possible to directly take out Transparent Parts 180 and reflector 190, its dismounting side Just, without specific purpose tool.
Further, in order to the second cylinder 115 for improving housing 110 openend sealing, light fixture 100 also includes close Seal 193.The cross section of sealing ring 193 is U-shaped, the abutment flange 191 of reflector 190 is coated in sealing ring 193, is sealed Circle 193 is directly connected between the end face of the openend of the second cylinder 115 of housing 110 and Transparent Parts 180.
Further, light fixture 100 also includes Voltage stabilizing module, and the electric energy for being produced to thermoelectricity sensing chip 140 carries out rectification, Then it is powered again to fan 150.Or, light fixture 100 also includes rechargeable battery, thermoelectricity sensing chip 140 and rechargeable battery electricity Connection, for rechargeable battery powered.Rechargeable battery is electrically connected with circuit board 120, and circuit board 120 is controlled when radiating is needed Rechargeable battery processed is powered to fan 150, and driving fan 150 is started working.
The thermoelectricity sensing chip 140 of above-mentioned light fixture 100 can absorb heat, produces the temperature difference, and temperature difference driving thermoelectricity sensing chip 140 is sent out Electricity, converts heat into electric energy, is powered to fan 150, and fan 150 is started working, and light fixture 100 is radiated.
When light fixture 100 works, caloric value is larger, and it is slower to carry out radiating efficiency by the heat transfer of itself, makes light fixture 100 in height Temperature is lower to work, and reduces the service life of light fixture 100.Heat is absorbed by thermoelectricity sensing chip 140, electric energy is then converted to fan 150 are powered, and fan 150 strengthens radiating effect to light fixture 100, these problems can be efficiently solved, so that light fixture 100 Worked in good environment, improve the service life of light fixture 100.
The larger position of caloric value that thermoelectricity sensing chip 140 is fixed on light fixture 100 by above-mentioned light fixture 100, light fixture 100 passes through heat Conduction transfers heat to thermoelectricity sensing chip 140, and thermoelectricity sensing chip 140 obtains heat energy, and electric energy, electric energy are converted into after producing the temperature difference Fan 150 is passed to by wire, driving fan 150 rotates and strengthens radiating.Therefore, above-mentioned light fixture 100 can effectively utilize heat Can, energy-conserving and environment-protective, and light fixture 100 can be made to obtain preferably radiating effect.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims (8)

1. a kind of light fixture, it is characterised in that including:
Housing, is tube structure, and the middle part of the housing is provided with dividing plate, and the cavity of the housing is divided into light source by the dividing plate Chamber and electric chamber;The housing is both ends open, and second be connected including the first cylinder and with first cylinder Body, the size of second cylinder is more than the size of first cylinder, so that second cylinder and first cylinder Junction forms stage portion;The dividing plate is located at the junction of second cylinder and first cylinder, first cylinder Cavity be the electric chamber, the cavity of second cylinder is the light-source chamber;First cylinder and second cylinder Lateral wall on be equipped with multiple spaced radiating fins, the radiating fin is along first cylinder and described second Body it is axially arranged, and the radiating fin of the radiating fin of first cylinder and second cylinder is staggered;
Circuit board, is fixed on the dividing plate on the surface of the light-source chamber, and is close to the dividing plate setting;
Light source, is fixed on the circuit board, and is electrically connected with the circuit board, and the circuit board is used to control the light source Working condition;
Thermoelectricity sensing chip, is fixed on the dividing plate on the surface of the electric chamber, and is close to the dividing plate setting, described Thermoelectricity sensing chip is made up of thermoelectric material, for converting heat energy into electric energy;And
Fan, is fixed on the electric intracavitary, the electrical connection of the fan and the thermoelectricity sensing chip;
Wherein, the light source and the heat of circuit board generation give the thermoelectricity sensing chip by the separator plate conductive, described Thermoelectricity sensing chip produces the temperature difference after absorbing heat, so as to convert heat energy into electric energy, is powered to the fan, the fan starts Work, radiates to the electronic component of the electric intracavitary.
2. light fixture according to claim 1, it is characterised in that also including rear shell, the rear shell is fixed on described first The openend of body, and close the openend of first cylinder.
3. light fixture according to claim 2, it is characterised in that the rear shell includes substrate and the side located at the substrate On face and with substrate annular flange connected vertically, the size of the annular flange is equal to the opening of first cylinder The size at end, makes the annular flange be contained in the openend of first cylinder, and the substrate is by first cylinder Openend stops, the openend of first cylinder is completely covered by by the substrate.
4. light fixture according to claim 3, it is characterised in that the lateral wall of first cylinder is provided with screw Fixed column, the fixed column is axially extending along first cylinder, and the periphery of the substrate is provided with lug, threaded fastener Screwhole spiro bonding after through the lug with the fixed column, so that the rear shell is fixed on the housing.
5. light fixture according to claim 1, it is characterised in that also including protecgulum, the protecgulum is fixed on described second The openend of body, and the middle part of the protecgulum is provided with light-emitting window.
6. light fixture according to claim 5, it is characterised in that also including Transparent Parts, the Transparent Parts sealing described second The openend of cylinder, and the Transparent Parts are connected between the end face of the openend of the protecgulum and second cylinder.
7. light fixture according to claim 6, it is characterised in that also including reflector, the reflector include osculum end and The big opening end relative with the osculum end, the outer peripheral edge of the big opening end is provided around the big opening end one week, supporting in a ring Flange is connect, the abutment flange is clamped between the end face of the openend of second cylinder and the Transparent Parts, the light source It is contained in the osculum end.
8. light fixture according to claim 7, it is characterised in that also including sealing ring, the cross section of the sealing ring is U Shape, makes the abutment flange be coated in the sealing ring, and the sealing ring is directly connected to the openend of second cylinder End face and the Transparent Parts between.
CN201210465766.8A 2012-11-16 2012-11-16 Light fixture Active CN103822105B (en)

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Application Number Priority Date Filing Date Title
CN201210465766.8A CN103822105B (en) 2012-11-16 2012-11-16 Light fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210465766.8A CN103822105B (en) 2012-11-16 2012-11-16 Light fixture

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CN103822105A CN103822105A (en) 2014-05-28
CN103822105B true CN103822105B (en) 2017-09-15

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106224898A (en) * 2016-07-17 2016-12-14 安徽卓越电气有限公司 A kind of energy-saving LED Tunnel Lamp
CN108132334A (en) * 2017-12-22 2018-06-08 阜阳师范学院 A kind of atmosphere pollution source point monitoring system and outdoor lights based on outdoor lights positioning
CN119508761A (en) * 2025-01-20 2025-02-25 深圳拜波赫技术有限公司 Intelligent car lamp and vehicle

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Publication number Priority date Publication date Assignee Title
CN101225946A (en) * 2008-01-22 2008-07-23 西安交通大学 An LED lighting device that can realize heat recovery
CN101943393A (en) * 2009-07-03 2011-01-12 海洋王照明科技股份有限公司 Sealed lamp
CN201875596U (en) * 2010-11-10 2011-06-22 孟强 High-power LED (light-emitting diode) ceiling lamp
CN202001966U (en) * 2010-11-10 2011-10-05 孟强 Lamp housing heat radiation integrated LED lamp affixed to the ceiling
CN202203703U (en) * 2011-07-28 2012-04-25 飞利浦(中国)投资有限公司 LED (Light-Emitting Diode) down lamp
CN102434817A (en) * 2010-09-29 2012-05-02 展晶科技(深圳)有限公司 Backlight module and LED (light emitting diode) module
CN202392614U (en) * 2011-12-21 2012-08-22 华荣科技股份有限公司 Tunnel lamp

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101225946A (en) * 2008-01-22 2008-07-23 西安交通大学 An LED lighting device that can realize heat recovery
CN101943393A (en) * 2009-07-03 2011-01-12 海洋王照明科技股份有限公司 Sealed lamp
CN102434817A (en) * 2010-09-29 2012-05-02 展晶科技(深圳)有限公司 Backlight module and LED (light emitting diode) module
CN201875596U (en) * 2010-11-10 2011-06-22 孟强 High-power LED (light-emitting diode) ceiling lamp
CN202001966U (en) * 2010-11-10 2011-10-05 孟强 Lamp housing heat radiation integrated LED lamp affixed to the ceiling
CN202203703U (en) * 2011-07-28 2012-04-25 飞利浦(中国)投资有限公司 LED (Light-Emitting Diode) down lamp
CN202392614U (en) * 2011-12-21 2012-08-22 华荣科技股份有限公司 Tunnel lamp

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