WO2009039715A1 - Procédé de dissipation de chaleur pour une lampe à del par utilisation de pression d'air et d'une soufflerie - Google Patents

Procédé de dissipation de chaleur pour une lampe à del par utilisation de pression d'air et d'une soufflerie Download PDF

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Publication number
WO2009039715A1
WO2009039715A1 PCT/CN2008/000375 CN2008000375W WO2009039715A1 WO 2009039715 A1 WO2009039715 A1 WO 2009039715A1 CN 2008000375 W CN2008000375 W CN 2008000375W WO 2009039715 A1 WO2009039715 A1 WO 2009039715A1
Authority
WO
WIPO (PCT)
Prior art keywords
pin
capacitor
air
resistor
led lamp
Prior art date
Application number
PCT/CN2008/000375
Other languages
English (en)
Chinese (zh)
Inventor
Qilin Wang
Original Assignee
Qilin Wang
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
Priority claimed from CNU2007201733363U external-priority patent/CN201119052Y/zh
Priority claimed from CNA2007101794446A external-priority patent/CN101178171A/zh
Application filed by Qilin Wang filed Critical Qilin Wang
Publication of WO2009039715A1 publication Critical patent/WO2009039715A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • F21S8/086—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device attached sideways of the standard, e.g. for roads and highways
    • 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
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/75—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with fins or blades having different shapes, thicknesses or spacing
    • 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
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • 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
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • F21V29/763—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • 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
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads
    • 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]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S362/00—Illumination
    • Y10S362/80—Light emitting diode

Definitions

  • the present invention relates to a method of dissipating a semiconductor LED (Lingt emitting diode) lamp using air pressure and a wind tunnel.
  • LED lights consume low power and have huge energy savings.
  • a 100W height is 8 meters from the ground, the illumination is 30LUX, and the luminous light is 4800LM.
  • the LED lamp consumes only one-fifth of the energy-saving lamp, and the ordinary tungsten lamp One-twentieth to one-thirtieth.
  • LEDs also have the advantages of long life, small size, and strong design (ie, the random arrangement of illumination light).
  • many countries in the world have invested heavily in the further development of the potential advantages of LEDs and the industrialization of high-power, high-efficiency LED chip production technology. For example, in Japan in 1998, the United States launched the "National Semiconductor Lighting Program" in 2000.
  • the manufacturing process has been gradually solved and mastered, so that the LED lamp achieves low voltage, high efficiency and volume. Small, stable performance, short response time, and variable color.
  • the power source of the LED illuminator that is, voltage and current are the key to the LED lamp.
  • the power supply and constant current source are composed of many electronic devices. The heat generated by them in the work causes the electronic devices to be damaged, which directly affects the performance of the whole system and even the life. LED lamps that could work normally for more than 50,000 hours are difficult to discharge due to high heat in the work.
  • the world's high-power LED lamps above 10W basically divide the power source, the constant current source and the LED into two parts. Assemble, disperse heat.
  • the method of dissipating heat through the heat sink in the form of an arc on the back side of the LED illuminator is used. In order to achieve a certain heat dissipation area, the volume is large and the weight is heavy.
  • the air convection heat dissipation is the forbidden zone of the LED lamp.
  • the protection circuit and the electrical components are not oxidized and corroded, and almost all of them are sealed, and the waterproof performance is emphasized, which causes difficulty in heat dissipation.
  • the application of LED lights in the world is limited to power below 10W. How to solve the above-mentioned problems in LED lighting technology, so that LED lamps, especially high-power LED lamps, can be widely applied and promoted. The focus of attention and conquer in technology.
  • the object of the present invention is to design a heat dissipation structure for an LED lamp using air pressure and a wind tunnel, and applying a gas pressure of the air to form a gas flow in the wind tunnel, so that the low temperature gas in the body enters the LED lamp body due to the cold gas.
  • Flow and exchange take away hot air, accelerate heat dissipation and increase heat dissipation area and ventilation level, and solve the problem of heat dissipation of LED lamps above 52W.
  • the solution of the invention is: an air flow passage is formed by the tubular LED lamp housing and the circuit board in the housing, the power supply and the heat dissipation plate on the constant current source assembly, and an air inlet hole and an air flow passage are connected at the lamp end,
  • the diameter of the air inlet hole matches the diameter of the air duct or the support rod or the utility pole
  • the air duct or the support rod or the electric pole is a hollow tube that communicates with the air flow passage through the air inlet hole, in the air duct or the support rod or the electric pole
  • the air inlet is opened at the lower end, and the air outlet is opened at the other end of the air flow passage on the casing, and the air flow is formed in the hollow tube due to the difference in air pressure formed by the height of the air duct or the support rod or the electric pole.
  • the passage naturally rises, forming a wind flow in the air flow passage formed by the air duct or the support rod or the electric pole and the lamp shell, and the heat generated by the operation of the circuit board, the power source and the constant current source assembly is taken out of the casing at any time to achieve heat dissipation.
  • FIG. 1 LED lamp uses the air pressure and wind tunnel heat dissipation schematic.
  • FIG. 1 Schematic diagram of the 51W LED lamp structure.
  • FIG. 4 Power and constant current source circuit diagram.
  • Air inlet 1. Air inlet, 2. Support rod or utility pole, 3. Channel, 4. Air inlet hole, 5. Lamp cover, 6. Air flow passage, 7. Air outlet hole, 8. Inner fin, 9. LED light illuminator, 10. Aluminum heat sink, 11. Circuit board, 12. Power supply and constant current source integrated components, 13. Cartridge heat sink, 14. Housing 15. Cover, 16. Shade
  • the horizontal LED lamp with air flow passage is a cylindrical casing 14 having a heat dissipation function, a power source and a constant current.
  • An air flow passage 6 is formed by the cylindrical LED lamp housing 14 and the circuit board 11 in the housing, the aluminum heat sink 10 on the power supply and the constant current source integrated assembly 12, and the inner heat sink 8 is vertically fixed in the air flow passage 6.
  • the lamp cap 5 is fixed at one end of the housing 14, and the air inlet hole 4 is connected to the center of the cap 5, and is empty
  • the air flow passage 6 is connected, the diameter of the air inlet hole 4 is matched with the diameter of the support rod or the electric pole 2, and the center of the support rod or the electric pole 2 is a hollow tube passage 3, and communicates with the air flow passage 6 through the air inlet hole 4, in the support
  • the air inlet 1 is opened at the lower end of the rod or the electric pole, and the air outlet hole 7 is opened at the other end of the air flow passage 6 on the casing.
  • the circuit board 11 is fixed on the aluminum heat sink 10, and the LED lamp illuminator 9 is fixed at On the circuit board 11, in a space constituted by the cover 15 and the globe 16, the power source and the constant current source integrated assembly 12 are placed in a vacant chamber constituted by the cylindrical heat sink 13.
  • the power supply and the constant current source integrated component are composed of a constant current source and a power supply two-part circuit;
  • the constant current source circuit is as follows:
  • the 1 pin of the resistor R2 is connected to the positive pole of the LED illuminator and connected to the positive pole of the +24V power supply; the 1 leg of the resistor R2 is connected to the connection point of the 2 pin of the transistor Q2 and the 1 pin of the transistor Q3; the 1 pin and the resistor of the transistor Q2
  • the 1 pin of R6 is connected to the 3 pin of the transistor Q3.
  • the 1 pin of the resistor R7 is connected to the pin 1 of the transistor Q2 and the pin 3 of the transistor Q3.
  • the 3 pin of the transistor Q2, the 2 pin of the resistor R6, and the resistor R7 2 feet of grounding; 2 feet of triode Q3 are connected to the negative pole of the LED illuminator;
  • Power circuit such as:
  • the 1 pin of the capacitor C1 is connected to the 1 pin of the vortex ring T1 and the mains +220V; the 2 legs of the capacitor C1 are respectively connected with the 2 pin of the vortex ring T1 and the mains-220V; the 3 pin of the vortex ring T1 and the temperature resistance RT 1 pin connection; 2 pin of temperature resistor RT is connected with pin 1 of rectifier D1; pin 4 of vortex ring T1 is connected with pin 3 of rectifier D1; pin 4 of rectifier D1 is grounded; pin 2 of rectifier D1 is connected to regulator tube D2
  • the 2 pin and the transformer T2 are connected to the 1 pin of the capacitor C2, and the 2 pin of the capacitor C2 is grounded; the 1 pin of the Zener diode D2 is connected to the 2 pin of the fast recovery diode D3; the 1 leg of the fast recovery diode D3 is connected.
  • the 2 pin of the transformer T2 is connected to the 1 pin of the pulse width modulation converter Q1; the 2 pin of the pulse width modulation converter Q1 is grounded; the 3 pin of the pulse width modulation converter Q1 is connected to the 3 pin of the optocoupler U2 and the resistor R5 Foot connection
  • the contacts are connected to a pin diode D6, 2 feet grounded diode D6; resistor R5 pin 2 to the capacitor 1 foot-C8; 2 feet capacitor C8, and a foot capacitor C7, the capacitor 2 feet C5, the transformer T2 6 pin ground;
  • 3 pin of transformer T2 is connected with pin 1 of fast recovery diode D5; pin 2 of fast recovery diode D5 and pin 1 of capacitor C3, pin 1 of L1, pin 1 of optocoupler U2, pin 1 of diode D7 Connection; 4 pin of transformer T2, pin 2 of capacitor C3, pin 2 of capacitor C4 are grounded; pin 5 of transformer T2 is connected with pin 1 of diode D4; pin 2 of diode D4, pin 1 of capacitor C
  • the normal 52W LED lamp is used for 3 hours or until it is no longer warmed up.
  • the maximum temperature of the heat sink close to the LED is 76 °C, which is beyond the normal use of the LED.
  • the LED lamp modified by the method of the present invention has a maximum temperature of 68 ° C after 3 hours of use without the air inlet being connected.
  • the maximum ambient temperature is 22 °C and the minimum temperature is 8 °C.
  • the maximum temperature of the LED heat sink is 46 °C, which can be cooled by 30 °C.
  • the lamp is 6M above the ground and reaches the optimum operating temperature of the LED below 55. If the radiator is used for heat dissipation, the heat dissipation area of the lamp needs to be more than doubled, and the volume and weight are more than doubled. This not only increases the production cost, but also is cumbersome and causes great inconvenience to the installation. According to the invention, it is only necessary to screw the LED lamp onto the pole.
  • the LED surface will change with the ambient temperature.
  • the LED lamp of the same power the higher the height of the support rod or the pole of the lamp, the better the heat dissipation effect.
  • the highest temperature range of the LED lamp can be cooled by more than 1 °C.
  • the support rod or the electric pole tube of the LED lamp can be made of an iron tube, preferably an aluminum tube, which can help the LED lamp to conduct heat.
  • This LED can also be mounted in a house that can hold a pole of 2 meters or more.
  • This tube can be used as a support rod.
  • the use of air and wind tunnel LED lights really solve the big problem of high-power LED lights cooling, so that not only can use high-power LED lights on advertising lights, street lights, high pole lights, but also can be operated at airports, stadiums, hospitals
  • the LED high power lamp can be used in rooms, theaters, conference hall tunnels, and warships.
  • the use of air pressure and wind tunnel LED lights to solve the practical benefits of LED lamp heat dissipation First, the high-power LED lamps can be popularized; Second, LED lamps can be manufactured in kilowatts; Third, reduce weight and reduce costs, (Taiwan has a home 200W LED lights, weighing more than 20 kg). For the 52W LED lamp tested above, for example, only the heat dissipation part weighs 1. 87 kg, which is RMB 52.32. If you do not use the air pressure and wind tunnel LED light, reach the highest temperature range below 55 ° C, the heat dissipation area. Need to increase more than 1 time, increase the cost of 52. 32 yuan, the most important thing is to increase the weight. The higher the power of the LED lamp, the more the weight of the LED lamp increases, and the larger the volume and weight. The 100W LED lamp that uses air pressure and wind tunnel is only less than 3 kilograms. Single radiator Cost savings of more than 100 yuan.
  • the maximum temperature of the LED lamp (that is, the temperature of the aluminum substrate and the LED itself when the LED is in operation) generally does not exceed 50 ° C, which is more than the LED safety range of 55 ° C. Low, thus ensuring the service life of the LED is more than 6 to 100,000 hours.

Abstract

L'invention porte sur un procédé de dissipation de chaleur pour une lampe à DEL par utilisation de pression d'air et d'une soufflerie, dans lequel le boîtier (14) de la lampe à DEL, une carte de circuits imprimés (11) située à l'intérieur du boîtier (14), une plaque de dissipation de chaleur (10) située sur une alimentation électrique et une source à courant constant (12) constituent un passage d'écoulement d'air (6). Un puits de chaleur (8) est situé dans un passage d'écoulement d'air (6) et est relié à la plaque de dissipation de chaleur (10), une ouverture d'entrée d'air (4) est située au niveau du culot de lampe et communique avec le passage d'écoulement d'air (6). Le diamètre d'ouverture de l'ouverture d'entrée d'air (4) concorde avec le diamètre d'un tuyau d'évent, d'un poteau de support ou d'un pylône électrique (2), le tuyau d'évent, le poteau de support ou le pylône électrique (2) est un tuyau creux et communique avec le passage d'écoulement d'air (6) par l'intermédiaire de l'ouverture d'entrée d'air (4). Une ouverture d'entrée d'air (1) est située au niveau de l'extrémité inférieure du tuyau d'évent, du poteau de support ou du pylône électrique (2). Une ouverture de sortie d'air (7) est située à l'autre extrémité du passage d'écoulement d'air (6) sur le boîtier (4), en conséquence de la différence de hauteur du tuyau d'évent, du poteau de support ou du pylône électrique (2). La différence de pression de l'écoulement d'air de refroidissement peut provoquer une montée naturelle d'air dans le passage formé par le tuyau creux, un écoulement d'air peut être formé dans le passage d'écoulement d'air (6), et la chaleur produite par la carte de circuits imprimés, l'alimentation électrique et la source à courant constant peut être expulsée hors du boîtier à tout moment, et on obtient une dissipation de chaleur pour une lampe à DEL de grande puissance.
PCT/CN2008/000375 2007-09-25 2008-02-21 Procédé de dissipation de chaleur pour une lampe à del par utilisation de pression d'air et d'une soufflerie WO2009039715A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CNU2007201733363U CN201119052Y (zh) 2007-09-25 2007-09-25 一种用于led灯的电源和恒流源一体化电路板
CN200720173336.3 2007-09-25
CNA2007101794446A CN101178171A (zh) 2007-12-13 2007-12-13 一种利用气压和风洞的led灯散热方法
CN200710179444.6 2007-12-13

Publications (1)

Publication Number Publication Date
WO2009039715A1 true WO2009039715A1 (fr) 2009-04-02

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Application Number Title Priority Date Filing Date
PCT/CN2008/000375 WO2009039715A1 (fr) 2007-09-25 2008-02-21 Procédé de dissipation de chaleur pour une lampe à del par utilisation de pression d'air et d'une soufflerie

Country Status (1)

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WO (1) WO2009039715A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103017050A (zh) * 2012-12-18 2013-04-03 辽宁中维高新技术有限公司 一种灯杆照明led路灯
WO2014038974A1 (fr) * 2012-09-06 2014-03-13 БИБИКОВ, Сергей Юрьевич Lampadaire à led comportant un refroidissement par convection dynamique
US8967828B2 (en) 2012-01-05 2015-03-03 Mitsubishi Electric Corporation Light source apparatus

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3523028A1 (de) * 1985-06-27 1987-01-02 Interatom Sonnenenergiebetriebene ortsfeste leuchte
JP2001167613A (ja) * 1999-12-13 2001-06-22 Matsushita Electric Works Ltd 照明灯具用ポール
CN1740631A (zh) * 2005-09-21 2006-03-01 鑫源盛科技股份有限公司 照明灯具
JP2006091132A (ja) * 2004-09-21 2006-04-06 Casio Comput Co Ltd プロジェクタ装置
CN200946795Y (zh) * 2006-04-13 2007-09-12 朝扬实业股份有限公司 灯具散热结构

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3523028A1 (de) * 1985-06-27 1987-01-02 Interatom Sonnenenergiebetriebene ortsfeste leuchte
JP2001167613A (ja) * 1999-12-13 2001-06-22 Matsushita Electric Works Ltd 照明灯具用ポール
JP2006091132A (ja) * 2004-09-21 2006-04-06 Casio Comput Co Ltd プロジェクタ装置
CN1740631A (zh) * 2005-09-21 2006-03-01 鑫源盛科技股份有限公司 照明灯具
CN200946795Y (zh) * 2006-04-13 2007-09-12 朝扬实业股份有限公司 灯具散热结构

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8967828B2 (en) 2012-01-05 2015-03-03 Mitsubishi Electric Corporation Light source apparatus
WO2014038974A1 (fr) * 2012-09-06 2014-03-13 БИБИКОВ, Сергей Юрьевич Lampadaire à led comportant un refroidissement par convection dynamique
CN103017050A (zh) * 2012-12-18 2013-04-03 辽宁中维高新技术有限公司 一种灯杆照明led路灯

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