CN102734774A - Light emitting diode (LED) street lamp radiator - Google Patents

Light emitting diode (LED) street lamp radiator Download PDF

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Publication number
CN102734774A
CN102734774A CN2012101917269A CN201210191726A CN102734774A CN 102734774 A CN102734774 A CN 102734774A CN 2012101917269 A CN2012101917269 A CN 2012101917269A CN 201210191726 A CN201210191726 A CN 201210191726A CN 102734774 A CN102734774 A CN 102734774A
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CN
China
Prior art keywords
radiator
street lamp
heat
vascular
led street
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Pending
Application number
CN2012101917269A
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Chinese (zh)
Inventor
赵新学
张明周
李喜民
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ZHENGZHOU GUANGHUA LAMP CO Ltd
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ZHENGZHOU GUANGHUA LAMP CO Ltd
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Application filed by ZHENGZHOU GUANGHUA LAMP CO Ltd filed Critical ZHENGZHOU GUANGHUA LAMP CO Ltd
Priority to CN2012101917269A priority Critical patent/CN102734774A/en
Publication of CN102734774A publication Critical patent/CN102734774A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/72Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting

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  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The invention discloses a light emitting diode (LED) street lamp radiator. The LED street lamp radiator comprises a radiating body provided with a closed radiating cavity, wherein the radiating body is also provided with radiating fins which are fixedly connected with the upper side of the radiating cavity; a radiating unit is arranged in the radiating cavity; the radiating unit comprises a haemal tube which is made of copper foam and is fixedly arranged on the top wall of the radiating cavity and a radiating block which is fixedly arranged on the bottom wall of the radiating cavity; the haemal tube is arranged around the radiating block; the bottom side of the haemal tube extends in an inclined direction; one end, pointing to the radiating block, of the haemal tube is a low end; the other end of the haemal tube is a high end; the radiating cavity is a vacuum cavity; and radiator liquid is filled in the radiating cavity. The invention discloses the LED street lamp radiator which can improve the radiating effect.

Description

The LED street lamp heat radiator
Technical field
The present invention relates to a kind of LED street lamp heat radiator.
Background technology
LED street lamp (Light Emitting Diode, Light-Emitting Diode) is a semi-conductor lighting lamp.It is the efficient solid state light emitter that the faint electric energy of usefulness that a kind of based semiconductor PN junction forms just can be luminous; Under certain forward bias voltage and injection electric current; The electronics that injects hole and the injection N district in P district is diffusing to active area after radiation recombination and send photon is converted into luminous energy with electric energy.It is a kind of solid-state cold light source, has characteristics such as environment friendly and pollution-free, little power consumption, light efficiency is high, the life-span is long, and therefore, the LED street lamp will become the optimal selection that roadway illumination and energy saving is transformed.But the LED street lamp also can produce a large amount of heat in luminous; If can not timely and effectively dispel the heat; Be deposited in led light source heat on every side and will cause light source to be decayed fast, energy consumption increases, thereby influences the life-span and the stability of LED lamp; But existing LED radiator heat-dissipation effect is bad, and cost is high.
Summary of the invention
The purpose of this invention is to provide a kind of LED street lamp heat radiator that improves radiating effect.
For realizing above-mentioned purpose; The present invention adopts following technical scheme: a kind of LED street lamp heat radiator, comprise the radiator that airtight heat radiation chamber is set, and radiator also is provided with the fin that is fixedly connected on heat radiation chamber upside; Heat radiation is provided with heat-sink unit in the chamber; Heat-sink unit comprise be fixedly arranged on heat radiation chamber roof by foam copper vascular of processing and the radiating block that is fixedly arranged on heat radiation chamber diapire, vascular girdle is around the radiating block setting, the base of vascular is oblique extension; The end that vascular points to radiating block is a low side, and the vascular other end is high-end.
Said heat radiation chamber is a vacuum chamber, and heat radiation is filled with cooling fluid in the chamber.
The downward projection of said vascular is a S shape.
The edge, base of vascular is wavy.
Establish the netted pore that constitutes by horizontal pore and vertical pore in the vascular.
Roof, diapire and the sidewall in said heat radiation chamber all spray with the scintilla particle.
Said radiator is made up of last radiator and following radiator; Last radiator is made up of the said fin that base plate and plate upper surface set firmly; Following radiator is the cell body that is provided with top opening; The surrounding on cell body top is along the base plate lower surface that is fixedly arranged on radiator, and the cell body cavity is said heat radiation chamber, and the lower surface of base plate is the roof in heat radiation chamber.
Said heat-sink unit is provided with two at least.
Said cooling fluid is water or liquor potassic permanganate.
Be installed with in the cell body and support the back-up block of going up radiator base plate lower surface.
LED street lamp heat radiator of the present invention; During work LED integrated optical source is carried out Reflow Soldering and be welded to cell body downside over against radiating block; Radiating block is middle hot zone; Vascular adopts bubble face copper sintering to form; Vascular structure is netted pore cross-perpendicular shape, the steam that integrated optical source high temperature produces---steam or the potassium permanganate steam heat exchange cooling through the fin netted pore vertical stratification through vascular is fast condensed and returned to LED integrated optical source hot zone---, and radiating block forms circulation.
Several vascular symmetry annular array in the heat radiation chamber; Vascular point to the end, middle hot zone of radiating block lower, more near radiating block; The fringe region end of other side of vascular is higher, the discrete heat piece is higher; Make the space evaporative condenser consistent like this, keep the temperature of inner chamber consistent, present " three-dimensional " heat-dissipating space.Solution radiator profile flange is not dispelled the heat and is wasted the phenomenon of hot surface, so can reduce the surface area of fin.
To sum up, LED street lamp heat radiator of the present invention, it is low to have a cost, the advantage that radiating efficiency is high.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the B-B view among Fig. 1;
Fig. 3 is the lateral plan of vascular;
Fig. 4 is the vertical view of Fig. 3.
The specific embodiment
By Fig. 1-a kind of LED street lamp heat radiator shown in Figure 4; Comprise the radiator that airtight heat radiation chamber 7 is set; Said radiator is made up of last radiator and following radiator, and last radiator is made up of with the upwardly extending fin 1 of plurality of vertical that is fixedly arranged on base plate 2 upper surfaces the base plate 2 of level, and upper and lower radiator is heat sink section bar; Following radiator is the cell body 8 that top opening is set; The surrounding on cell body 8 tops is along base plate 2 lower surfaces that are welded in radiator, and think is welded in base plate 2 lower surfaces of radiator with the edge, surrounding on cell body 8 tops, should earlier Nickel Plating Treatment be carried out on the peripheral edge edge on cell body 8 tops.Cell body 8 recessed cavitys promptly constitute above-mentioned airtight heat radiation chamber 7, and the lower surface of base plate 2 is the roof in heat radiation chamber 7, and the baseplane of cell body 8 cavitys is the diapire in heat radiation chamber 7; Said heat radiation chamber 7 is a vacuum chamber, and heat radiation is filled with cooling fluid 9 in the chamber 7, and cooling fluid 9 is water or liquor potassic permanganate; Can cell body 8 be offered a little opening (not shown); To dispel the heat charge into a small amount of cooling fluid 9 in the chamber 7 after, take out to the greatest extent from will the dispel the heat air in chamber 7 of the opening of cell body 8 again, this opening of shutoff gets final product.Like this, fin 1 is fixedly connected on heat radiation chamber 7 upsides, and the heat of coming is transmitted in the heat radiation chamber 7 that can in time leave.
Heat radiation is provided with two heat-sink units 10 in the chamber 7; Heat-sink unit 10 comprise be fixedly arranged on heat radiation chamber 7 roofs by the foam copper some vasculars 4 processed and the radiating block 5 that is fixedly arranged on heat radiation chamber 7 diapires, radiating block 5 is as a whole with following radiator, vascular 4 is positioned at radiating block 5 tops; Vascular 4 is provided with around radiating block 5 borders; The base of vascular 4 is oblique extension, and the end that vascular 4 points to radiating block 5 is a low side, and vascular 4 other end of radiating block 5 dorsad is high-end; The side projection of vascular 4 is that trapezoidal, downward projection is a serpentine; Vascular 4 is processed for foam copper, and the edge, base 11 of vascular 4 is wavy, establishes the netted pore that is made up of transverse horizontal pore 12 and vertical pore 13 in the vascular 4.Roof, diapire and the sidewall in said heat radiation chamber 7 all sprays with the nano copper particle spray-up; Use gases at high pressure to blow out diameter after promptly melting oxygen-free copper and be sprayed onto the section bar surface, like this for preventing that hydraulic fluid and heat radiation chamber 7 from chemical change taking place cause the heat abstractor inefficacy as sodium rice particle.
Be installed with the back-up block 3 that is supported in radiator base plate 2 and heat radiation chamber 7 diapires in the heat radiation chamber 7 of cell body 8, back-up block 3 is between two heat-sink units 10.
During work; LED integrated optical source 6 is carried out Reflow Soldering be welded to cell body 8 downsides over against radiating block 5; LED integrated optical source 6 thermal resistances be 0.15 degree/watt because vascular 4 adopts bubble face copper sintering to form, vascular 4 structures are netted pore cross-perpendicular shape; And heat radiation chamber 7 sidewalls and diapire are carried out the scintilla nano copper particle spray; The steam that integrated optical source 6 high temperature produce---steam or potassium permanganate steam cool off the middle hot zone that quick netted pore vertical stratification through vascular 4 condenses and returns to LED integrated optical source 6 through the heat exchange of fin 1---radiating block 5 forms circulation, thus so cooling fluid 9 can not be full of entire heat dissipation chamber 7; Only charge into a small amount of cooling fluid 9, the circulation of can dispelling the heat gets final product.
Several vasculars 4 symmetrical annular array in the heat radiation chamber 7; Vascular 4 point to the end, middle hot zone of radiating blocks 5 lower, more near radiating block 5; The fringe region end of vascular 4 other sides is higher, discrete heat piece 5 is higher; Make the space evaporative condenser consistent like this, keep the temperature of inner chamber consistent, present " three-dimensional " heat-dissipating space.The solution profile flange is not dispelled the heat and is wasted the phenomenon of hot surface, so can reduce the surface area of fin 1.Detect the both sides thermal resistance and be 0.23 degree/watt.

Claims (10)

1. LED street lamp heat radiator is characterized in that: comprise the radiator that airtight heat radiation chamber is set, radiator also is provided with the fin that is fixedly connected on heat radiation chamber upside; Heat radiation is provided with heat-sink unit in the chamber; Heat-sink unit comprise be fixedly arranged on heat radiation chamber roof by foam copper vascular of processing and the radiating block that is fixedly arranged on heat radiation chamber diapire, vascular girdle is around the radiating block setting, the base of vascular is oblique extension; The end that vascular points to radiating block is a low side, and the vascular other end is high-end.
2. LED street lamp heat radiator as claimed in claim 1 is characterized in that: said heat radiation chamber is a vacuum chamber, and heat radiation is filled with cooling fluid in the chamber.
3. LED street lamp heat radiator as claimed in claim 1 is characterized in that: the downward projection of said vascular is a S shape.
4. LED street lamp heat radiator as claimed in claim 2 is characterized in that: the edge, base of vascular is wavy.
5. LED street lamp heat radiator as claimed in claim 3 is characterized in that: establish the netted pore that is made up of horizontal pore and vertical pore in the vascular.
6. LED street lamp heat radiator as claimed in claim 4 is characterized in that: roof, diapire and the sidewall in said heat radiation chamber all spray with the scintilla particle.
7. like each described LED street lamp heat radiator of claim 1-6; It is characterized in that: said radiator is made up of last radiator and following radiator; Last radiator is made up of the said fin that base plate and plate upper surface set firmly, and following radiator is the cell body that is provided with top opening, and the surrounding on cell body top is along the base plate lower surface that is fixedly arranged on radiator; The cell body cavity is said heat radiation chamber, and the lower surface of base plate is the roof in heat radiation chamber.
8. LED street lamp heat radiator as claimed in claim 7 is characterized in that: said heat-sink unit is provided with two at least.
9. LED street lamp heat radiator as claimed in claim 8 is characterized in that: said cooling fluid is water or liquor potassic permanganate.
10. LED street lamp heat radiator as claimed in claim 9 is characterized in that: be installed with in the cell body and support the back-up block of going up radiator base plate lower surface.
CN2012101917269A 2012-06-12 2012-06-12 Light emitting diode (LED) street lamp radiator Pending CN102734774A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012101917269A CN102734774A (en) 2012-06-12 2012-06-12 Light emitting diode (LED) street lamp radiator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012101917269A CN102734774A (en) 2012-06-12 2012-06-12 Light emitting diode (LED) street lamp radiator

Publications (1)

Publication Number Publication Date
CN102734774A true CN102734774A (en) 2012-10-17

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103225792A (en) * 2013-04-20 2013-07-31 大连三维传热技术有限公司 Flat plate heat pipe employing nano working liquid and foam metal wick
CN103322541A (en) * 2013-06-28 2013-09-25 华南理工大学 Integrated radiator based on foamy copper and micro-channel, and manufacturing method thereof
CN104315487A (en) * 2013-04-20 2015-01-28 大连三维传热技术有限公司 Foam metal wick hot plate heat radiator of CuO nano working fluid
CN104315479A (en) * 2013-04-20 2015-01-28 大连三维传热技术有限公司 Hot plate radiator with copper nanometer liquid working medium and foam metal wick
CN104315478A (en) * 2013-04-20 2015-01-28 大连三维传热技术有限公司 Foam metal wick hot plate heat radiator of Fe2O3 nano working fluid

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101173759A (en) * 2007-11-13 2008-05-07 深圳市桑达实业股份有限公司 Integral cooling system and LED illumination device with the same
CN101457919A (en) * 2009-01-12 2009-06-17 冯旭升 Phase change heat radiation semiconductor lamp
CN101598318A (en) * 2009-06-24 2009-12-09 蔡州 Heat abstractor
CN201652038U (en) * 2010-04-03 2010-11-24 黄海斌 Large-power LED project lamp
CN101943335A (en) * 2009-07-07 2011-01-12 富准精密工业(深圳)有限公司 Light-emitting diode lamp

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101173759A (en) * 2007-11-13 2008-05-07 深圳市桑达实业股份有限公司 Integral cooling system and LED illumination device with the same
CN101457919A (en) * 2009-01-12 2009-06-17 冯旭升 Phase change heat radiation semiconductor lamp
CN101598318A (en) * 2009-06-24 2009-12-09 蔡州 Heat abstractor
CN101943335A (en) * 2009-07-07 2011-01-12 富准精密工业(深圳)有限公司 Light-emitting diode lamp
CN201652038U (en) * 2010-04-03 2010-11-24 黄海斌 Large-power LED project lamp

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103225792A (en) * 2013-04-20 2013-07-31 大连三维传热技术有限公司 Flat plate heat pipe employing nano working liquid and foam metal wick
CN104315487A (en) * 2013-04-20 2015-01-28 大连三维传热技术有限公司 Foam metal wick hot plate heat radiator of CuO nano working fluid
CN104315479A (en) * 2013-04-20 2015-01-28 大连三维传热技术有限公司 Hot plate radiator with copper nanometer liquid working medium and foam metal wick
CN104315478A (en) * 2013-04-20 2015-01-28 大连三维传热技术有限公司 Foam metal wick hot plate heat radiator of Fe2O3 nano working fluid
CN103322541A (en) * 2013-06-28 2013-09-25 华南理工大学 Integrated radiator based on foamy copper and micro-channel, and manufacturing method thereof

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Application publication date: 20121017