CN101876427A - Heat dissipation device of LED lamp - Google Patents
Heat dissipation device of LED lamp Download PDFInfo
- Publication number
- CN101876427A CN101876427A CN2009103019564A CN200910301956A CN101876427A CN 101876427 A CN101876427 A CN 101876427A CN 2009103019564 A CN2009103019564 A CN 2009103019564A CN 200910301956 A CN200910301956 A CN 200910301956A CN 101876427 A CN101876427 A CN 101876427A
- Authority
- CN
- China
- Prior art keywords
- led lamp
- radiating fin
- central tube
- pars intermedia
- radiating
- 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.)
- Pending
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Classifications
-
- 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
- F21V29/77—Cooling 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
- F21V29/773—Cooling 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
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- 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
- F21V29/71—Cooling 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
- F21V29/713—Cooling 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 in direct thermal and mechanical contact of each other to form a single system
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- 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]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a heat dissipation device of an LED lamp, which comprises a central cylinder and a plurality of heat dissipation fins, wherein the plurality of heat dissipation fins are arranged outside the central cylinder at uniform intervals in a radial pattern by taking the axis of the central cylinder as a center; each heat dissipation fin comprises a first end, a second end opposite to the first end and a middle part positioned between the first end and the second end; and the width of each heat dissipation fin along the direction vertical to the axis of the central cylinder gradually decreases from the first end and the second end to the middle part. In the heat dissipation device of the LED lamp, the heat dissipation fins are designed into shapes gradually decreasing from two ends to the middle part, thereby ventilation space around the heat dissipation fins is increased, resistance on the air flowing among the heat dissipation fins is reduced, and the heat dissipation efficiency of the heat dissipation device of the LED lamp is improved.
Description
Technical field
The present invention relates to a kind of heat abstractor, relate in particular to a kind of LED lamp heat-radiating device.
Background technology
LED (Light-emitting diode) as a kind of energy-conservation, light source is widely used in various fields efficiently, yet the heat that LED is produced from work the time is to influence the LED key factor in service life, therefore, general LED light fixture all can dispel the heat by a heat sink that is arranged on described LED back, yet the area of dissipation of heat sink is limited, radiating effect is undesirable, can not effectively reduce the operating temperature of LED.
Summary of the invention
In view of this, be necessary the LED lamp heat-radiating device that provides a kind of radiating efficiency high.
It comprises a central tube and a plurality of radiating fin a kind of LED lamp heat-radiating device, and described a plurality of radiating fins are that the center is radial and is arranged on the outside of described central tube evenly and at intervals with the axis of described central tube.Each radiating fin comprises one first end, one and the first end second opposed end and the pars intermedia between described first end and second end.Described each radiating fin edge is reduced to the pars intermedia place by its first end and second end gradually perpendicular to the width of the direction of the axis of described central tube.
Compare prior art, LED lamp heat-radiating device of the present invention is designed to radiating fin the shape that is reduced gradually by two ends to central part, thereby increased radiating fin ambient air free air space, reduced the resistance of radiating fin, thereby improved the radiating efficiency of LED lamp heat-radiating device ventilating air between radiating fin.
Description of drawings
Fig. 1 is the schematic perspective view of LED lamp heat-radiating device of the present invention;
Fig. 2 is the schematic perspective view of another angle of LED lamp heat-radiating device among Fig. 1.
The specific embodiment
See also Fig. 1, a kind of LED lamp heat-radiating device 100 that better embodiment of the present invention provides.This LED lamp heat-radiating device 100 comprises a central tube 110, a plurality of radiating fins 120 and a plurality of heat pipe 130.Described a plurality of radiating fin 120 is that the center is radial and is arranged on the outside of described central tube 110 at interval uniformly with the axis of described central tube 110.Described a plurality of heat pipe 130 is arranged on the described radiating fin 120.
Described central tube 110 is the cylinder of a hollow, and it is located at a led light source (figure does not show) outside.This central tube 110 adopts heat-resisting and Heat Conduction Material is made, and conducts on the described radiating fin 120 in order to the heat that supports described led light source and led light source is produced.Described central tube 110 comprises the bottom 114 that a top 112 and and this top 112 are relative.
Described a plurality of radiating fin 120 is made by metals such as highly heat-conductive material such as aluminium, copper, iron.Wherein each radiating fin 120 comprises one first end 122, one and first end, 122 second opposed end 124 and the pars intermedia 126 between described first end 122 and second end 124.First end 122 of described radiating fin 120 is concordant mutually with the top 112 of described central tube 110.Second end 124 of described radiating fin 120 offers a breach 124a near a side of the axis of described central tube 110, the bottom surface 124b of this breach 124a is mutually concordant with the bottom 114 of described central tube 110, and the breach 124a of described a plurality of radiating fin 120 and bottom surface 124b together constitute the accommodation space 123 of a ccontaining LED light fixture.Described a plurality of radiating fin 120 edges are reduced to pars intermedia 126 places by its first end 122 and second end 124 gradually perpendicular to the width of the direction of the axis of described central tube 110, thereby make described a plurality of radiating fin 120 form the hourglass shape radiating fin group that diameter is reduced to pars intermedia 126 gradually by first end 122 and second end 124.
Described radiating fin 120 along the width perpendicular to the direction of the axis of described central tube 110 can be by its first end 122 and second end 124 to pars intermedia 126 linear decreases, also can be to non-linear the successively decreasing in pars intermedia 126 places by its first end 122 and second end 124.When described radiating fin 120 along perpendicular to the width of the direction of the axis of described central tube 110 by its first end 122 and second end 124 during to pars intermedia 126 linear decreases, described first end 122 is the inclined-plane of inclination with the outer face 125 that the pars intermedia 126 and second end 124 are connected with pars intermedia 126, this kind mode can make things convenient for the manufacturing of described radiating fin 120, can increase the circulation of air space on the radiating fin 120 simultaneously.When described radiating fin 120 along perpendicular to the width of the direction of the axis of described central tube 110 by its first end 122 and second end 124 during to pars intermedia 126 non-linear successively decreasing, for example described first end 122 is smooth curved surface with the outer face 125 of pars intermedia 126 and second end 124 and pars intermedia 126, this kind mode can guarantee on radiating fin 120 to form the contact area that increases radiating fin 120 self and air in enough free air spaces, thereby quickens the heat radiation of this radiating fin 120.Be appreciated that ground, first end 122 of described radiating fin 120 and second end 124 also can adopt the mode of successively decreasing of intersecting to pars intermedia 126 mode of successively decreasing, promptly by first end 122 to described pars intermedia 126 linear decreases or non-linear successively decreasing, corresponding by described second end 124 to pars intermedia 126 non-linear successively decreasing or linear decrease.
Described heat pipe 130 is a kind of high-efficiency heat conduction device, and it comprises an evaporation ends 132 and a condensation end 134.Described evaporation ends 132 is fixed on second end 124 of described radiating fin 120, and condensation end 134 is installed in first end 122 of described radiating fin 120.
During use, because described radiating fin 120 adopts the narrow design in wide centre, two ends, the resistance that 120 air of radiating fin flow is reduced greatly, thereby it is smooth and easy to make that air between the radiating fin 120 flows, and the cold air described radiating fin 120 of flowing through is fast taken away the heat on the radiating fin 120.Simultaneously, because the join domain at pars intermedia 126 between second end 124 of radiating fin 120 and first end 122 reduces, thereby thereby can be between second end 124 and first end 122 the formation temperature difference form the cross-ventilation of regional area, make the hot-air that produces around second end 124 quicken to rise to the position of first end 122, air through supercooling around first end 122 quickens to flow back to second end 124 again, thereby has accelerated radiating fin 120 radiating effects.In addition, because second end 124 of described radiating fin 120 is near led light source, therefore, described second end 124 is hot concentrated area, therefore, the cooling fluid of evaporation ends 132 inside of the heat pipe 130 on described second end 124 is set, and (thereby figure does not show that 0 can take away on second end 124 heat and by convection current heat be brought to condensation end 134 in evaporation under the heat effect of second end 124, because the temperature of described first end 122 is lower than the temperature on second end 124, therefore, the cooling fluid of described evaporation is condensed and is emitted heat at condensation end 134, this heat conducts to first end 122 of described radiating fin 120 and by it heat is distributed in the air, thereby can improve the radiating efficiency of described LED lamp heat-radiating device 100.Compare prior art, LED lamp heat-radiating device 100 of the present invention quickens heat radiation by the radiating fin 120 of hourglass shape, and can pass through heat pipe 130 auxiliary heat dissipations, thereby has greatly improved radiating efficiency, improves the service life of led light source.
Described heat pipe 130 is installed for convenience, can on the end face of second end 124 of described radiating fin 120 retainer ring 140 be set, the end of the condensation end 134 of described heat pipe 130 is fixed on the described retainer ring 140.
Be noted that above-mentioned embodiment only is better embodiment of the present invention, those skilled in the art also can do other variation in spirit of the present invention.The variation that these are done according to spirit of the present invention all should be included within the present invention's scope required for protection.
Claims (10)
1. LED lamp heat-radiating device, it comprises a central tube and a plurality of radiating fin, described a plurality of radiating fin is that the center is radial and is arranged on the outside of described central tube evenly and at intervals with the axis of described central tube, it is characterized in that: each radiating fin comprises one first end, one and the first end second opposed end and the pars intermedia between described first end and second end, and described each radiating fin edge is reduced to the pars intermedia place by its first end and second end gradually perpendicular to the width of the direction of the axis of described central tube.
2. LED lamp heat-radiating device as claimed in claim 1 is characterized in that: described radiating fin along perpendicular to the width of the direction of the axis of described central tube by its first end and second end to the pars intermedia linear decrease.
3. LED lamp heat-radiating device as claimed in claim 1 is characterized in that: described radiating fin is along being successively decreased to pars intermedia is non-linear by its first end and second end perpendicular to the width of the direction of the axis of described central tube.
4. LED lamp heat-radiating device as claimed in claim 1 is characterized in that: the inclined-plane of the outer face that the outer face that described first end is connected with pars intermedia and second end are connected with pars intermedia for tilting.
5. LED lamp heat-radiating device as claimed in claim 1 is characterized in that: the outer face that the outer face that described first end is connected with pars intermedia and second end are connected with pars intermedia is smooth curved surface.
6. LED lamp heat-radiating device as claimed in claim 1 is characterized in that: described radiating fin along perpendicular to the width of the direction of the axis of described central tube by first end to described pars intermedia linear decrease, successively decrease to described pars intermedia is non-linear by second end.
7. LED lamp heat-radiating device as claimed in claim 1 is characterized in that: described radiating fin is along being successively decreased to described pars intermedia is non-linear by first end perpendicular to the width of the direction of the axis of described central tube, by second end to described pars intermedia linear decrease.
8. as any described LED lamp heat-radiating device of claim 1 to 7, it is characterized in that: described central tube comprises a top and a bottom relative with this top, first end of described each radiating fin is concordant mutually with the top of described central tube, second end of described each radiating fin offers a breach near a side of the axis of described central tube, and the bottom surface of this breach is mutually concordant with the bottom of described central tube.
9. as any described LED lamp heat-radiating device of claim 1 to 7, it is characterized in that: this LED lamp heat-radiating device also comprises a plurality of heat pipes, and described each heat pipe comprises the evaporation ends and the condensation end that is arranged on corresponding radiating fin first end that are arranged on described radiating fin second end.
10. LED lamp heat-radiating device as claimed in claim 9, it is characterized in that: this LED lamp heat-radiating device also comprises a retainer ring, described retainer ring is arranged on the end face of second end of described radiating fin, described heat pipe the end of condensation end is fixed on the described retainer ring.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103019564A CN101876427A (en) | 2009-04-29 | 2009-04-29 | Heat dissipation device of LED lamp |
| US12/635,833 US20100276118A1 (en) | 2009-04-29 | 2009-12-11 | Cooling device for illumination source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103019564A CN101876427A (en) | 2009-04-29 | 2009-04-29 | Heat dissipation device of LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101876427A true CN101876427A (en) | 2010-11-03 |
Family
ID=43019049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009103019564A Pending CN101876427A (en) | 2009-04-29 | 2009-04-29 | Heat dissipation device of LED lamp |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20100276118A1 (en) |
| CN (1) | CN101876427A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104654246A (en) * | 2013-11-25 | 2015-05-27 | 苏州承源光电科技有限公司 | LED (light emitting diode) lamp heat dissipater |
| US10088252B2 (en) | 2012-01-20 | 2018-10-02 | Philips Ligting Holding B.V. | Heat transferring arrangement |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011011323A1 (en) * | 2009-07-21 | 2011-01-27 | Cooper Technologies Company | Interfacing a light emitting diode (led) module to a heat sink assembly, a light reflector and electrical circuits |
| US8596837B1 (en) | 2009-07-21 | 2013-12-03 | Cooper Technologies Company | Systems, methods, and devices providing a quick-release mechanism for a modular LED light engine |
| TWM497230U (en) * | 2014-10-31 | 2015-03-11 | Kenner Material & System Co Ltd | Solid-state illuminating apparatus having heat dissipating structure with large surface area |
| USD822624S1 (en) * | 2016-08-30 | 2018-07-10 | Abl Ip Holding Llc | Heat sink |
| USD800677S1 (en) * | 2016-08-30 | 2017-10-24 | Abl Ip Holding Llc | Heat sink |
| USD800676S1 (en) * | 2016-08-30 | 2017-10-24 | Abl Ip Holding Llc | Heat sink |
| USD822626S1 (en) | 2016-11-21 | 2018-07-10 | Abl Ip Holding Llc | Heatsink |
| US10415895B2 (en) | 2016-11-21 | 2019-09-17 | Abl Ip Holding Llc | Heatsink |
| CN108637552A (en) * | 2018-07-30 | 2018-10-12 | 中南大学 | A kind of Reinforcement Stress-count welding radiator |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6748656B2 (en) * | 2000-07-21 | 2004-06-15 | Ats Automation Tooling Systems Inc. | Folded-fin heatsink manufacturing method and apparatus |
| US20070253202A1 (en) * | 2006-04-28 | 2007-11-01 | Chaun-Choung Technology Corp. | LED lamp and heat-dissipating structure thereof |
| CA2666343A1 (en) * | 2006-10-23 | 2008-05-02 | Cree Led Lighting Solutions, Inc. | Lighting devices and methods of installing light engine housings and/or trim elements in lighting device housings |
| TW200934361A (en) * | 2008-01-16 | 2009-08-01 | Neng Tyi Prec Ind Co Ltd | Method of manufacturing heat dissipater and structure thereof |
| TW200934362A (en) * | 2008-01-16 | 2009-08-01 | Neng Tyi Prec Ind Co Ltd | Method of manufacturing heat dissipaters having heat sinks and structure thereof |
| USD591894S1 (en) * | 2008-06-23 | 2009-05-05 | Oleg Lidberg | Housing for LED retrofit fixture |
| CN101614383A (en) * | 2008-06-27 | 2009-12-30 | 富准精密工业(深圳)有限公司 | LED lamp |
| TWM358257U (en) * | 2008-08-03 | 2009-06-01 | Ya-Li Wu | The thermal dissipation structure of steam surface LED lamp |
| CN201336791Y (en) * | 2008-12-17 | 2009-10-28 | 鸿富锦精密工业（深圳）有限公司 | Radiator |
| US20100294462A1 (en) * | 2009-05-19 | 2010-11-25 | Kuo-Len Lin | Heat sink and heat-dissipating fins of the same |
| USD626094S1 (en) * | 2010-03-24 | 2010-10-26 | Journée Lighting, Inc. | Heat sink unit for use with a removable LED light module |
-
2009
- 2009-04-29 CN CN2009103019564A patent/CN101876427A/en active Pending
- 2009-12-11 US US12/635,833 patent/US20100276118A1/en not_active Abandoned
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10088252B2 (en) | 2012-01-20 | 2018-10-02 | Philips Ligting Holding B.V. | Heat transferring arrangement |
| US10578378B2 (en) | 2012-01-20 | 2020-03-03 | Signify Holding B.V. | Heat transferring arrangement |
| CN104654246A (en) * | 2013-11-25 | 2015-05-27 | 苏州承源光电科技有限公司 | LED (light emitting diode) lamp heat dissipater |
Also Published As
| Publication number | Publication date |
|---|---|
| US20100276118A1 (en) | 2010-11-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101103 |