CN101251246A - LED lamp and heat dispersion method thereof - Google Patents

LED lamp and heat dispersion method thereof Download PDF

Info

Publication number
CN101251246A
CN101251246A CNA2008100658970A CN200810065897A CN101251246A CN 101251246 A CN101251246 A CN 101251246A CN A2008100658970 A CNA2008100658970 A CN A2008100658970A CN 200810065897 A CN200810065897 A CN 200810065897A CN 101251246 A CN101251246 A CN 101251246A
Authority
CN
China
Prior art keywords
radiator
light fixture
described
pedestal
air
Prior art date
Application number
CNA2008100658970A
Other languages
Chinese (zh)
Inventor
张志海
蔡小平
Original Assignee
东莞勤上光电股份有限公司
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 东莞勤上光电股份有限公司 filed Critical 东莞勤上光电股份有限公司
Priority to CNA2008100658970A priority Critical patent/CN101251246A/en
Publication of CN101251246A publication Critical patent/CN101251246A/en

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Classifications

    • 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
    • F21V3/00Globes; Bowls; Cover glasses
    • F21V3/02Globes; Bowls; Cover glasses characterised by the shape
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-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
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • 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
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/60Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • F21V29/67Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
    • F21V29/677Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans the fans being used for discharging
    • 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
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/71Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
    • 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
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/77Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
    • F21V29/773Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • 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
    • F21Y2107/00Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/30Light sources with three-dimensionally disposed light-generating elements on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section
    • 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 LED lamp and a heat removal method applied on the LED lamp. The lamp comprises a substrate, a radiator, an LED lamp board, an electrical source driver and a lamp cover. The radiator and the lamp cover form a path inside the lamp. The substrate is provided with an air inlet and an air outlet, which are communicated with two ends of the path to form an air circulation loop. Furthermore, the air flow speed is promoted via a fan, and the heat removal efficiency is improved. The lamp carries out heat exchange via air and the lamp radiator to form air circulation flow inside the lamp so as to improve heat removal performance. Compared with prior lamps, the LED lamp of the invention has better performance than the passive heat removal means of heat radiation.

Description

LED light fixture and heat dissipating method thereof

Technical field

The present invention is a kind of LED light fixture, and the heat dissipating method of this LED light fixture.

Background technology

Along with the continuous development of technology, the LED light fixture has been widely used in various lighting fields.Existing LED light fixture all adopts the brightness of illumination that the modular method of LED is improved light fixture, but the temperature of light fixture also rises thereupon simultaneously, and the radiator structure of LED light fixture and heat dissipating method become the important topic of stakeholder's research.Existing LED light fixture generally all adopts led module is combined with radiating module, and radiating module closely contacts with lamp outer casing, is delivered on the lamp outer casing by the heat with LED, carries out heat exchange with extraneous air again, by thermal-radiating passive heat dissipating method.This method makes lamp interior assemble a large amount of hot-airs, and whole light fixture all is in the thermal source radiation, and LED works long hours in hot environment, and radiating effect is undesirable.

Summary of the invention

At the problems referred to above, the present invention proposes a kind of lamp LED light fixture, and the mode that it adopts air circulation to flow and dispel the heat has improved the efficient of heat radiation.

The present invention realizes that the technical scheme of above-mentioned purpose is as follows: a kind of LED light fixture, it comprises the pedestal that is used for fixing light fixture, be installed on the radiator on the pedestal, be fixed in the LED lamp plate of spreader surface and held against heat sink, power supply is provided for the LED lamp plate and controls the power supply driver of LED duty, and be fixed in the lampshade that holds radiator on the pedestal and fully, it is characterized in that: described pedestal is provided with a fresh air inlet and an exhaust vent, described radiator is a bar shape, be provided with many radiating fins with the central shaft array of radiator in described radiator inside, described radiating fin surrounds an air vent in radiator inside, air vent is communicated with space between described lampshade and the radiator outer wall and forms a passage, above-mentioned fresh air inlet is connected with an end of passage, and described exhaust vent is by being connected with the other end of above-mentioned passage; Also be equipped with on the described pedestal over against the fan of radiator air vent; Described radiator is the straightedge column, and radiator is made of one section heat conduction section bar, and radiator all has identical shaped along all cross sections of its length direction, on each side of thermal column the LED lamp plate is installed all; Described pedestal has the cannelure that lampshade is installed in the form of a ring, and described fresh air inlet and exhaust vent all are positioned at the bottom of pedestal.

The present invention also proposes a kind of heat dissipating method of LED light fixture, be applied on the LED light fixture of the present invention's proposition, this method is as follows: the fresh air inlet of described LED light fixture, passage and exhaust vent are connected with the light fixture extraneous air, form an air circulation loop, extraneous air enters lamp interior from fresh air inlet, carrying out heat exchange via one section passage that is positioned at radiator and radiator takes away the heat that light fixture produces and forms hot-air, hot-air flows out light fixture from exhaust vent again, and the heat that light fixture produces is dispersed into the light fixture outside by circulating of air.

Compare with the passive radiating mode that existing LED light fixture dispels the heat by heat radiation, the present invention forms the passage that an air circulation flows in the LED lamp interior, in passage, has the heat exchange between radiating fin reinforcement light fixture and the air, the heat that in the process of gas flow light fixture is produced is taken away and is flowed out outside the light fixture, reach the purpose that air circulation flows and dispels the heat, the active heat removal that is equivalent to light fixture, can improve the radiating effect of LED light fixture by this method to a great extent, therefore the decay of the aging and LED of electronic component can be delayed, the service life of LED light fixture can be prolonged to a certain extent.

Description of drawings

Fig. 1 is the outline drawing of light fixture of the present invention;

Fig. 2 is the structural representation of pedestal in the light fixture of the present invention;

Fig. 3 is the STRUCTURE DECOMPOSITION schematic diagram of light fixture of the present invention;

Fig. 4 is heat dissipating method schematic diagram among the present invention.

The specific embodiment

The present invention is a kind of LED light fixture that adopts air circulation to flow active heat removal, and the present invention is described in detail below in conjunction with accompanying drawing.

With reference to Fig. 1,, can see the fan 3 in the pedestal 1 from the light fixture bottom and be arranged at fresh air inlet 16 and exhaust vent 15 on the pedestal 1 from seeing that in appearance LED light fixture of the present invention comprises pedestal 1 and the lampshade 4 that is fixed on the pedestal 1 is formed.Refer again to pedestal 1 structural representation among Fig. 2 and Fig. 3, pedestal 1 on the whole in the form of a ring, its cross sectional shape is a U-shaped, pedestal 1 has the double-deck annular wall of inwall 11 and outer wall 12, between the double-deck annular wall is a cannelure 13, be provided with three uniform legs and a plurality of uniform exhaust vent 15 in the bottom of cannelure 13, leg stretches out laterally.Outer wall 12 is provided with the fixing hole 120 of fastening lampshades 4, inwall 11 forms endoporus 14 around making in the pedestal 1, endoporus 14 is as fresh air inlet 16, and the top of inwall 11 has the boss 17 that stretches to endoporus 14, and boss is provided with a plurality of uniform installing holes 170 in both sides about in the of 17.Refer again to the STRUCTURE DECOMPOSITION figure among Fig. 3, fan 3 embeds the endoporus 14 of pedestal 1 from pedestal 1 bottom, is fixed in boss 17 bottoms by screw; Radiator 2 is positioned at boss 17 tops, also is fixed on the pedestal 1 by screw; LED lamp plate 21 is fixed on the radiator 2 by screw, and is close to each side of radiator 2; Power supply driver 5 is a circuit board, is installed on the top of radiator 2 by support; Top at radiator 2 also is equipped with a ceiling light 6 by support, also is made of the LED bulb; In lampshade 4 all was contained in above-mentioned parts, the bottom of lampshade 4 was inserted in the cannelure 13 of pedestal 1 and contacts with the outer wall 12 of pedestal 1, installs and fixes with the fixing hole 120 of screw by outer wall 12.

Radiator is the straightedge column, all cross sections along its length direction all have identical shaped, radiator shown in Fig. 22 is positive eight prism-shaped, the heat conduction aluminium section bar molded by two halves is put together, can certainly be a molded whole heat conduction section bar, radiator 2 inside be provided with many radiating fins 22, and radiating fin 22 is with radiator 2 central shaft array arrangements, form an air vent 23 in radiator 2 inner spaces, air vent 23 is connected with the endoporus 14 of pedestal 1 and over against fan 3.The appearance and size of radiator 2 is less than the diameter of pedestal 1 inwall, after radiator 2 is installed, the outer wall of radiator 2 and lampshade 4 inwalls surround the space of an annular, this space is connected with the air vent 23 of radiator and forms passage 7, passage 7 one ends are connected with the endoporus 14 of pedestal 1, and the other end then is connected with exhaust vent 15 on the pedestal 1, and the endoporus 14 of pedestal 1 is as fresh air inlet 16, like this, but lamp interior and extraneous air have just formed a loop that supplied gas circulates.

With reference to shown in Figure 4, the cold air of light fixture outside enters lamp interior by fresh air inlet, air vent 23 in radiator 2 and radiator 2 carry out taking away after the sufficient heat exchange heat on the radiator, flow to the light fixture outside via the passage in the light fixture 7 from exhaust vent 15 then, so repeatedly carrying out gas circulation flows, the heat discharge that light fixture is produced is dispersed into the light fixture outside, reaches the purpose of heat radiation.Be blown into cold air to radiator 2 inner ventilation holes 23 when fan 3 rotates, can accelerate the speed that air circulation flows, improve radiating effect more.Similarly, when fan 3 backward rotation, the air of lamp interior will reverse flow, fan 3 is extracted the hot-air in the radiator out just as air exhauster, and cold air enters light fixture by the exhaust vent on the pedestal, endoporus by pedestal flows out light fixture, and the exchange of fresh air inlet and exhaust vent reaches the purpose that circulation is dispelled the heat.

The present invention carries out heat exchange by air and lamp radiator, makes the lamp interior air circulation flow improve radiating effect, than existing light fixture by thermal-radiating passive radiating mode better effects if.

Claims (5)

1. LED light fixture, it comprises the pedestal that is used for fixing light fixture, be installed on the radiator on the pedestal, be fixed in the LED lamp plate of spreader surface and held against heat sink, power supply is provided for the LED lamp plate and controls the power supply driver of LED duty, and be fixed in the lampshade that holds radiator on the pedestal and fully, it is characterized in that: described pedestal is provided with a fresh air inlet and an exhaust vent, described radiator is a bar shape, be provided with many radiating fins with the central shaft array of radiator in described radiator inside, described radiating fin surrounds an air vent in radiator inside, air vent is communicated with space between described lampshade and the radiator outer wall and forms a passage, above-mentioned fresh air inlet and passage an end be connected, and described exhaust vent is by being connected with the other end of above-mentioned passage.
2. LED light fixture according to claim 1 is characterized in that: also be equipped with over against the fan of radiator air vent on the described pedestal.
3. LED light fixture according to claim 1, it is characterized in that: described radiator is the straightedge column, radiator is made of one section heat conduction section bar, and radiator all has identical shaped along all cross sections of its length direction, on each side of thermal column the LED lamp plate is installed all.
4. LED light fixture according to claim 1 is characterized in that: described pedestal has the cannelure that lampshade is installed in the form of a ring, and described fresh air inlet and exhaust vent all are positioned at the bottom of pedestal.
5. heat dissipating method that is applied to the described LED light fixture of above-mentioned arbitrary claim, it is characterized in that: described fresh air inlet, passage and exhaust vent are connected with the light fixture extraneous air, form an air circulation loop, extraneous air enters lamp interior from fresh air inlet, carrying out heat exchange via one section passage that is positioned at radiator and radiator takes away the heat that light fixture produces and forms hot-air, hot-air flows out light fixture from exhaust vent again, and the heat that light fixture produces is dispersed into the light fixture outside by circulating of air.
CNA2008100658970A 2008-03-24 2008-03-24 LED lamp and heat dispersion method thereof CN101251246A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2008100658970A CN101251246A (en) 2008-03-24 2008-03-24 LED lamp and heat dispersion method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2008100658970A CN101251246A (en) 2008-03-24 2008-03-24 LED lamp and heat dispersion method thereof

Publications (1)

Publication Number Publication Date
CN101251246A true CN101251246A (en) 2008-08-27

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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010045841A1 (en) * 2008-10-21 2010-04-29 上海宝康电子控制工程有限公司 Heat dissipating means for lamp
CN101858505A (en) * 2009-04-13 2010-10-13 富准精密工业(深圳)有限公司 Light-emitting diode (LED) lamp
CN102095172A (en) * 2009-12-15 2011-06-15 富士迈半导体精密工业(上海)有限公司 Light emitting diode lamp
CN102147057A (en) * 2010-02-06 2011-08-10 顾仁法 LED double-channel heat radiation lamp
WO2011124354A1 (en) * 2010-04-10 2011-10-13 Lightdesign Solutions Gmbh Led lamp
CN102326024A (en) * 2009-09-23 2012-01-18 皇家飞利浦电子股份有限公司 Lighting device
CN101749686B (en) * 2008-12-03 2012-03-14 富准精密工业(深圳)有限公司 Light emitting diode lamp
CN102384452A (en) * 2011-11-25 2012-03-21 生迪光电科技股份有限公司 LED (light-emitting diode) lamp convenient to dissipate heat
RU2446346C2 (en) * 2010-05-28 2012-03-27 Государственное образовательное учреждение высшего профессионального образования "Новосибирский государственный технический университет" Light-emitting diode-based lamp
CN102537691A (en) * 2010-12-13 2012-07-04 建准电机工业股份有限公司 Lamp
WO2012095019A1 (en) * 2011-01-14 2012-07-19 查克森科技有限公司 Illumination apparatus
CN102734710A (en) * 2012-07-02 2012-10-17 大连唯思德节能科技有限公司 Active-radiating LED (light-emitting diode) streetlamp light source with independent air flow passage
CN102840468A (en) * 2011-06-21 2012-12-26 建准电机工业股份有限公司 Lamp
TWI408311B (en) * 2010-05-25 2013-09-11 Sunonwealth Electr Mach Ind Co Lamp and heat sink thereof
CN104595753A (en) * 2014-12-11 2015-05-06 上海飞乐音响股份有限公司 Filament type LED lamp
CN104654139A (en) * 2015-03-17 2015-05-27 福建中海丰智能科技有限公司 High-power searchlight for ship
CN104879670A (en) * 2015-06-30 2015-09-02 刘骁洋 LED lamp with fan cooling device
CN105387371A (en) * 2015-11-24 2016-03-09 山西江淮重工有限责任公司 Metal halide explosion-proof lamp with high heat dissipation efficiency and long service life
CN105940263A (en) * 2014-01-29 2016-09-14 飞利浦照明控股有限公司 LED bulb
CN106322229A (en) * 2015-07-02 2017-01-11 上海益奥自控设备有限公司 LED lamp for rapid heat dissipation

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010045841A1 (en) * 2008-10-21 2010-04-29 上海宝康电子控制工程有限公司 Heat dissipating means for lamp
CN101749686B (en) * 2008-12-03 2012-03-14 富准精密工业(深圳)有限公司 Light emitting diode lamp
CN101858505B (en) * 2009-04-13 2013-04-24 富准精密工业(深圳)有限公司 Light-emitting diode (LED) lamp
CN101858505A (en) * 2009-04-13 2010-10-13 富准精密工业(深圳)有限公司 Light-emitting diode (LED) lamp
CN106555993A (en) * 2009-09-23 2017-04-05 飞利浦照明控股有限公司 Luminaire
CN102326024A (en) * 2009-09-23 2012-01-18 皇家飞利浦电子股份有限公司 Lighting device
CN102095172A (en) * 2009-12-15 2011-06-15 富士迈半导体精密工业(上海)有限公司 Light emitting diode lamp
CN102147057A (en) * 2010-02-06 2011-08-10 顾仁法 LED double-channel heat radiation lamp
CN102147057B (en) * 2010-02-06 2014-06-04 顾仁法 LED double-channel heat radiation lamp
WO2011124354A1 (en) * 2010-04-10 2011-10-13 Lightdesign Solutions Gmbh Led lamp
TWI408311B (en) * 2010-05-25 2013-09-11 Sunonwealth Electr Mach Ind Co Lamp and heat sink thereof
RU2446346C2 (en) * 2010-05-28 2012-03-27 Государственное образовательное учреждение высшего профессионального образования "Новосибирский государственный технический университет" Light-emitting diode-based lamp
CN102537691B (en) * 2010-12-13 2016-06-01 建准电机工业股份有限公司 Light fixture
CN102537691A (en) * 2010-12-13 2012-07-04 建准电机工业股份有限公司 Lamp
WO2012095019A1 (en) * 2011-01-14 2012-07-19 查克森科技有限公司 Illumination apparatus
CN102840468B (en) * 2011-06-21 2015-04-15 建准电机工业股份有限公司 Lamp
CN102840468A (en) * 2011-06-21 2012-12-26 建准电机工业股份有限公司 Lamp
CN102384452A (en) * 2011-11-25 2012-03-21 生迪光电科技股份有限公司 LED (light-emitting diode) lamp convenient to dissipate heat
CN102734710B (en) * 2012-07-02 2014-10-29 大连唯思德节能科技有限公司 Active-radiating LED (light-emitting diode) streetlamp light source with independent air flow passage
CN102734710A (en) * 2012-07-02 2012-10-17 大连唯思德节能科技有限公司 Active-radiating LED (light-emitting diode) streetlamp light source with independent air flow passage
CN105940263A (en) * 2014-01-29 2016-09-14 飞利浦照明控股有限公司 LED bulb
CN105940263B (en) * 2014-01-29 2020-05-29 飞利浦照明控股有限公司 LED bulb
CN104595753A (en) * 2014-12-11 2015-05-06 上海飞乐音响股份有限公司 Filament type LED lamp
CN104595753B (en) * 2014-12-11 2017-07-25 上海飞乐音响股份有限公司 Filament LED
CN107388101A (en) * 2015-03-17 2017-11-24 福建中海丰智能科技有限公司 The high marine searchlight of radiating efficiency
CN104654139A (en) * 2015-03-17 2015-05-27 福建中海丰智能科技有限公司 High-power searchlight for ship
CN104654139B (en) * 2015-03-17 2017-08-01 福建中海丰智能科技有限公司 High-power search light peculiar to vessel
CN107388101B (en) * 2015-03-17 2019-10-25 福建中海丰智能科技有限公司 The high marine searchlight of radiating efficiency
CN104879670A (en) * 2015-06-30 2015-09-02 刘骁洋 LED lamp with fan cooling device
CN106322229A (en) * 2015-07-02 2017-01-11 上海益奥自控设备有限公司 LED lamp for rapid heat dissipation
CN105387371A (en) * 2015-11-24 2016-03-09 山西江淮重工有限责任公司 Metal halide explosion-proof lamp with high heat dissipation efficiency and long service life

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Open date: 20080827