CN202216213U - Three-level radiating device of large-power light-emitting diode (LED) lighting lamp - Google Patents

Three-level radiating device of large-power light-emitting diode (LED) lighting lamp Download PDF

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Publication number
CN202216213U
CN202216213U CN2011202914165U CN201120291416U CN202216213U CN 202216213 U CN202216213 U CN 202216213U CN 2011202914165 U CN2011202914165 U CN 2011202914165U CN 201120291416 U CN201120291416 U CN 201120291416U CN 202216213 U CN202216213 U CN 202216213U
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China
Prior art keywords
led
substrate
heat
heat conducting
shaped heat
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Expired - Fee Related
Application number
CN2011202914165U
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Chinese (zh)
Inventor
徐沛娟
张驰
王洵
娄静平
臧雪柏
惠玥
张媛
李栋
樊宇
吕文婷
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Jilin University
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Jilin University
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Priority to CN2011202914165U priority Critical patent/CN202216213U/en
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Publication of CN202216213U publication Critical patent/CN202216213U/en
Anticipated expiration legal-status Critical
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Abstract

The utility model relates to a three-level radiating device of a large-power light-emitting diode (LED) lighting lamp, which belongs to the technical field of radiating of novel phototube elements and structurally comprises an LED chip, a substrate, a U-shaped heat conducting tube, a liquid tank, radiating sheets and an LED power source. The LED chip is arranged on the substrate with excellent heat conducting performance, the substrate is connected with the U-shaped heat conducting tube through heat conducting adhesive, a port of the U-shaped heat conducting tube is communicated with the liquid tank filled with cooling liquid, and the LED power source is fixed at the lower end of the liquid tank. A part of heat of the LED chip achieves heat convection through the U-shaped heat conducting tube and the cooling liquid in the liquid tank, a part of heat is released to the environment through a plurality of radiating sheets inserted on two sides of the U-shaped heat conducting tube, and another part of heat can be carried out through convection air in a reversed space between the liquid tank and the substrate. By adopting the technical scheme, the three-level radiating device of the large-power LED lighting lamp effectively solves the problem that large-power LED lighting lamps are reduced in reliability and shortened in service life due to radiating issues.

Description

Three grades of heat abstractors of high-power LED illuminating lamp
Technical field
The utility model provides a kind of high-power LED illuminating lamp light fixture three grades of heat abstractors, belongs to new type light electrical equipment element radiating device technique field.
Background technology
At present in the high-power LED lighting fixture technical field; Because the high-power LED illuminating lamp input power only has about 20% to convert light to; All the other 80% converts heat to, if do not apply suitable cooling measure, the PN junction temperature of illuminating lamp can raise rapidly for the heat that converts to; When its junction temperature rises when surpassing the maximum allowable temperature, can cause the LED temperature too high and influence luminous efficiency and luminescent lifetime causes damage.Therefore in the high-power LED illuminating lamp Design of Luminaires, one of key issue will reduce the led chip temperature exactly to greatest extent and design rational radiator structure.Conventional high-power LED lighting fixture cooling system mainly is made up of chip (light source), substrate and radiator, and the heat in the cooling system is diffused into shell and the surrounding environment through radiator from heat-conducting substrate.For the great power LED device;, junction temperature will cause damage when being higher than uniform temperature to light fixture; Reduce service life; Therefore design rational high-power LED illuminating lamp lamp cooling structure, not only can reduce junction temperature and solve heat dissipation problem, for high-power LED lamp to popularize and promote also be vital.
Summary of the invention
The present invention provides a kind of three grades of heat abstractors of high-power LED illuminating lamp that substrate, ventilation by forced draft and liquid dispel the heat that integrate, and its purpose is to solve the heat dissipation problem of high-power LED illuminating lamp.
The technical solution of the utility model is following: three grades of heat abstractors of the described high-power LED illuminating lamp of the utility model are made up of led chip, substrate, U-shaped heat pipe, fluid box, fin, LED power supply and power supply protective cover.With led chip 1 is that light source places on the substrate; Substrate connects the U-shaped heat pipe through heat-conducting glue, and two ports of U-shaped heat pipe place the fluid box that cooling fluid is housed, each interspersed several pieces fin in the both sides of U-shaped pipe; Lay power supply in the fluid box lower end, the power supply protective cover is installed in the power supply outside.The heat that led light source sends at first imports substrate into; Substrate links to each other with the U-shaped heat pipe through heat-conducting glue; Then with heat transferred U-shaped heat pipe, the U-shaped heat pipe is communicated with fluid box, and the convection action that produces through liquid with a part of transfer of heat in fluid box; Another part heat passes to the both sides fin through the U-shaped heat pipe and scatters and disappears; Some heat is carried by the convection current wind through the headspace between liquid radiator and substrate, is delivered to fast in the surrounding environment, has reached the purpose of cooling.
The utility model is compared its good effect with traditional high-power LED illuminating lamp cooling system and is: on the basis of controlling cost, adopted to integrate three grades of heat abstractors of high-power LED illuminating lamp that substrate, ventilation by forced draft and liquid dispel the heat; Thereby effectively reduced the temperature of LED light fixture chip, solved the high-power LED illuminating lamp light fixture because the problem that the reliability that heat dissipation problem causes reduces and shorten service life with the surface.
Description of drawings
Fig. 1 is the utility model structural front view.
Fig. 2 is the upward view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Wherein, 1.LED chip; 2. substrate; 3. fluid box; 4. fin; 5.U shape heat pipe; 6. cooling fluid; 7.LED power supply; 8. power supply protective cover
The specific embodiment
Further specify particular content of the present invention below in conjunction with the accompanying drawing illustrated embodiment.
In order to realize above-mentioned high-power LED illuminating lamp light fixture chip temperature being controlled at certain temperature range; The mode that we have adopted substrate, U-shaped heat pipe, recirculated water-cooling and air-cooling to cooperatively interact has been carried out the rational and effective design to the outside radiator structure of high-power LED lamp.It is following that concrete structure is consulted the high-power LED lamp description of drawings:
The utility model mainly is made up of led chip 1, substrate 2, fluid box 3, fin 4, U-shaped heat pipe 5, cooling fluid 6, LED power supply 7 and power supply protective cover 8.Led chip 1 array is fixed on the substrate 2 with excellent heat conductivity performance; Substrate 2 connects U-shaped heat pipe 5 through heat-conducting glue; U heat pipe 5 is communicated with fluid box 3, and cooling liquid 6 is housed in the fluid box 3, each interspersed several pieces fin in U-shaped heat pipe 5 both sides; At last power supply 7 is fixed on the fluid box 3, and adopts 8 pairs of power supplys of power supply protective cover to carry out packaging protection.The heat that led chip 1 sends at first imports substrate 2 into; Substrate 2 links to each other with U-shaped heat pipe 5 through heat-conducting glue; Then with heat transferred U-shaped heat pipe 5, owing to heat pipe 5 is communicated with fluid box 3, so the liquid in liquid in the heat pipe 5 and the fluid box 3 produces heat convection; And a part of heat is delivered in the fluid box 3, finally be delivered in the surrounding environment; Another part heat is dispersed in the environment via the fin 4 of U-shaped heat pipe 5 both sides; Some heat is delivered to heat in the surrounding environment, to reach the purpose of cooling by the headspace of convection current wind through 2 of liquid radiator 3 and substrates.

Claims (3)

1. three grades of heat abstractors of a high-power LED illuminating lamp; Form by led chip, substrate, U-shaped heat pipe, fluid box, fin and LED power supply; It is characterized in that said led chip (1) places on the substrate (2) with excellent heat conductivity performance, substrate (2) is connected with U-shaped heat pipe (5) through heat-conducting glue; The port of U-shaped heat pipe (5) is communicated with the fluid box that cooling fluid (6) are housed (3), and LED power supply (7) is fixed on fluid box (3) lower end.
2. three grades of heat abstractors of a kind of high-power LED illuminating lamp according to claim 1 is characterized in that, each interspersed several pieces fin (4) that are equipped with of said U-shaped heat pipe (5) both sides.
3. three grades of heat abstractors of a kind of high-power LED illuminating lamp according to claim 1 and 2 is characterized in that, power supply protective cover (8) is installed in said LED power supply (7) outside.
CN2011202914165U 2011-08-12 2011-08-12 Three-level radiating device of large-power light-emitting diode (LED) lighting lamp Expired - Fee Related CN202216213U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202914165U CN202216213U (en) 2011-08-12 2011-08-12 Three-level radiating device of large-power light-emitting diode (LED) lighting lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011202914165U CN202216213U (en) 2011-08-12 2011-08-12 Three-level radiating device of large-power light-emitting diode (LED) lighting lamp

Publications (1)

Publication Number Publication Date
CN202216213U true CN202216213U (en) 2012-05-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011202914165U Expired - Fee Related CN202216213U (en) 2011-08-12 2011-08-12 Three-level radiating device of large-power light-emitting diode (LED) lighting lamp

Country Status (1)

Country Link
CN (1) CN202216213U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103196057A (en) * 2013-03-18 2013-07-10 林智勇 High-power liquid heat dissipating LED (light emitting diode) lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103196057A (en) * 2013-03-18 2013-07-10 林智勇 High-power liquid heat dissipating LED (light emitting diode) lamp

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120509

Termination date: 20130812