CN104296101A - Light-emitting diode (LED) lamp radiating system - Google Patents
Light-emitting diode (LED) lamp radiating system Download PDFInfo
- Publication number
- CN104296101A CN104296101A CN201410549076.XA CN201410549076A CN104296101A CN 104296101 A CN104296101 A CN 104296101A CN 201410549076 A CN201410549076 A CN 201410549076A CN 104296101 A CN104296101 A CN 104296101A
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- CN
- China
- Prior art keywords
- led
- lamp
- radiator
- heat transfer
- transfer liquid
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- 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.)
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Classifications
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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
- F21V15/00—Protecting lighting devices from damage
- F21V15/02—Cages
-
- 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
- F21Y2101/00—Point-like light sources
Abstract
The invention provides a light-emitting diode (LED) lamp radiating system which is used for dissipating heat for an LED lighting module. The system comprises a lamp cavity casing and a radiator which are arranged on the back of the LED lighting module. The radiator is arranged in the lamp cavity casing which is filled with single phase heat transfer liquid. The radiator is completely immersed in the single phase heat transfer liquid, and the LED lighting module is isolated from the single phase heat transfer liquid. The LED lamp radiating system is simple and reasonable in structure and capable of quickly dissipating heat of the LED lighting module and effectively reducing the temperature of the LED lighting module, reduces the light depreciation speed of the LED lamp, prolongs the service life of the LED lamp, reduces usage of expensive good heat transfer metal in the radiator on the premise that the radiating effect is ensured and reduces the manufacture cost of the LED lamp accordingly.
Description
Technical field
The present invention relates to the technical field of a kind of lighting apparatus heat radiation, particularly relate to a kind of LED lamp cooling system.
Background technology
At the society of pay attention to day by day energy-saving and emission-reduction, LED lamp, with the advantage of its efficient low-consume, energy-conserving and environment-protective, life-span length, is just more and more used in illumination.Its luminescence mechanism band-to-band transition can produce light, owing to not comprising infrared part in its spectrum, so heat can not shed by radiation by electronics.The photoelectric transformation efficiency of common high-power LED lamp is probably between 15%-20%, the electric energy conversion of about about 80% is heat energy, if there is no good cooling system, work long hours causing the junction temperature of LED chip too high and light decay speed is accelerated, service life shortens, therefore, LED lamp must have corresponding cooling system, helps it to control the temperature of luminescence chip within zone of reasonableness.
At present, LED lamp adopts the metal fin of high thermal conductivity to dispel the heat mostly, corresponding power is larger, metal for dispelling the heat is more, and along with the maturation of LED technology, the price of LED light module has been difficult to reduce, and expensive metal fin has become the key factor of restriction LED lamp cost, and the metal consumption managing to reduce LED lamp radiator will become its development trend.
Summary of the invention
The object of the invention is to propose a kind of cooling system that can meet LED lamp cooling requirements, to reduce the metal needed for heat radiation, reduce the manufacturing cost of LED lamp.
In order to solve the problems of the technologies described above, technical scheme of the present invention is as follows:
A kind of LED lamp cooling system, for being the heat radiation of LED illuminating module, comprise the lamp chamber shell on the shady face being arranged on described LED illuminating module and radiator, described radiator is placed in lamp chamber shell, and is full of single-phase heat transfer liquid in described lamp chamber shell.
The heat produced during the work of LED illuminating module is passed on radiator, and radiator is immersed in the single-phase heat transfer liquid in lamp chamber shell, just single-phase heat transfer liquid is transferred heat to, heat is passed to lamp chamber shell surface by convection current or heat transfer by single-phase heat transfer liquid, carry out heat exchange with air, final heat diffusion is to outside LED lamp.It is simple and reasonable, the heat of energy fast spread LED illuminating module, the temperature of effective reduction LED illuminating module, reduce the light decay speed of LED lamp, extend the service life of LED lamp, and under the prerequisite ensureing radiating effect, decrease the consumption of high-quality heat-conducting metal expensive in radiator, thus reduce the manufacturing cost of LED lamp.
Described radiator comprises the aluminium matter radiating fin on the shady face being attached to LED illuminating module.The heat of LED illuminating module is taken away by aluminium matter radiating fin by high thermal conductivity, large area of dissipation rapidly, effectively reduces the temperature of LED illuminating module.
Described lamp chamber shell is made up of tinplate or plastics.The materials cost of lamp chamber shell can be reduced, thus reduce LED lamp manufacturing cost on the whole.
Advantage of the present invention is: simple and reasonable, the heat of energy fast spread LED illuminating module, the temperature of effective reduction LED illuminating module, reduce the light decay speed of LED lamp, extend the service life of LED lamp, and under the prerequisite ensureing radiating effect, decrease the consumption of high-quality heat-conducting metal expensive in radiator, thus reduce the manufacturing cost of LED lamp.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is sectional view of the present invention;
Description of reference numerals: 1, LED illuminating module; 2, lamp chamber shell; 3, lamp bracket; 4, radiator; 5, single-phase heat transfer liquid.
Detailed description of the invention
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Embodiment
As shown in Figure 1 and Figure 2, a kind of LED lamp cooling system, for dispelling the heat for LED illuminating module 1, comprise the lamp chamber shell 2 on the shady face being arranged on described LED illuminating module 1 and radiator 4, described radiator 4 is placed in lamp chamber shell 2, and single-phase heat transfer liquid 5 is full of in described lamp chamber shell 2, described radiator 4 is fully immersed in single-phase heat transfer liquid 5, and described LED illuminating module 1 is isolated with single-phase heat transfer liquid 5.
LED lamp cooling system of the present invention, be mainly used in high-power LED lamp, as high-power LED street lamp etc., the LED illuminating module 1 of LED lamp can be integration packaging form, also can be dot matrix version, LED illuminating module 1 is close to the bottom of radiator 4, radiator 4 is surrounded by lamp chamber shell 2 and is immersed in single-phase heat transfer liquid 5, the shape of lamp chamber shell 2 can be determined as required, be arbitrary shape when meeting cooling requirements, design principle is that heat conduction is good, and metal consumption is few, attractive in appearance, convenient installation etc.Pass between radiator 4 and single-phase heat transfer liquid 5 is whole immersions, and the size of radiator 4 and surface area, according to the luminous power of light fixture, light source size and determining, do not have unified fixing proportionate relationship.Isolate between LED illuminating module 1 and single-phase heat transfer liquid 5, between LED illuminating module 1 and lamp chamber shell 2, can play buffer action with general sealing ring encapsulation process or welding, the mode of a lot of isolation in prior art, this is not restricted.
The single-phase heat transfer liquid 5 be full of in lamp chamber shell 2 soaks radiator 4, and contact fully, is convenient to produce convective heat transfer liquid.LED power do not marked in figure, LED power can be placed on lamp bracket 3, or when water resistance is good, directly LED power is immersed in the middle of single-phase heat transfer liquid 5, also can plays certain cooling effect.
Basic radiating principle of the present invention and process are: the heat produced when LED illuminating module 1 works is passed on radiator 4, and radiator 4 is immersed in the single-phase heat transfer liquid 5 in lamp chamber shell 2, just single-phase heat transfer liquid 5 is transferred heat to, heat is passed to lamp chamber shell 2 surface by convection current or heat transfer by single-phase heat transfer liquid 5, carry out heat exchange with air, final heat diffusion is to outside LED lamp.
Further, described radiator 4 comprises the aluminium matter radiating fin on the shady face being attached to LED illuminating module 1; Described lamp chamber shell 2 is made up of tinplate or plastics.
Generally the thermal conductivity of liquid is not high, if allow LED illuminating module 1 directly contact liq, then easily occur that heat-transfer rate is slow, the situations such as the chip temperature rising of LED illuminating module 1, the present invention adds the radiator 4 of the higher aluminium matter of thermal conductivity between which, the surface area of aluminium matter radiating fin is larger simultaneously, fully can contact with single-phase heat transfer liquid 5, accelerate heat-transfer rate, thus can fast the heat of LED illuminating module 1 be taken away, solve the problem that when only having single-phase heat transfer liquid 5, radiating rate is slow, for the radiating effect of LED lamp provides guarantee.
Relatively with radiator 4 and the air contact heat-exchanging directly by aluminium matter, metal material required for the present invention will lack a lot, because the radiator 4 in lamp chamber shell 2 can do less than traditional.Lamp chamber shell 2 material therefor no longer requires price highly heat-conductive material costly in addition, selects the cheap materials such as thin stainless steel iron sheet, tinplate or even plastics to replace.For single-phase heat transfer liquid 5, there is no the equipment that forced convertion circulates, do not undergo phase transition in diabatic process, the liquid using reinforced heat conduction rate is not needed yet, even heat conduction is not as good as general metal material, it is only the cheap characteristic with it, light water can be selected, a small amount of antifreeze can be added in cold weather area, thus, insulation request between LED illuminating module 1 with single-phase heat transfer liquid 5 is much lower relative to phase-change heat transfer mode, as long as contact portion is non-leakage, and the radiator of phase-change heat transfer mode is equivalent to a gas cylinder, any pore cannot be had to leak gas and also have and want certain bearing capacity.Greatly reduce LED lamp cost on the whole thus.
Above-listed detailed description is illustrating for possible embodiments of the present invention, and this embodiment is also not used to limit the scope of the claims of the present invention, and the equivalence that all the present invention of disengaging do is implemented or changed, and all should be contained in the scope of the claims of this case.
Claims (3)
1. a LED lamp cooling system, for being the heat radiation of LED illuminating module, it is characterized in that, comprise the lamp chamber shell on the shady face being arranged on described LED illuminating module and radiator, described radiator is placed in lamp chamber shell, and single-phase heat transfer liquid is full of in described lamp chamber shell, described radiator is fully immersed in single-phase heat transfer liquid, and described LED illuminating module and single-phase heat transfer liquid are isolated.
2. LED lamp cooling system according to claim 1, is characterized in that, described radiator comprises the aluminium matter radiating fin on the shady face being attached to LED illuminating module.
3. described LED lamp cooling system according to claim 1 and 2, is characterized in that, described lamp chamber shell is made up of cheap stainless steel iron sheet or tinplate or plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410549076.XA CN104296101A (en) | 2014-10-16 | 2014-10-16 | Light-emitting diode (LED) lamp radiating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410549076.XA CN104296101A (en) | 2014-10-16 | 2014-10-16 | Light-emitting diode (LED) lamp radiating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104296101A true CN104296101A (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410549076.XA Pending CN104296101A (en) | 2014-10-16 | 2014-10-16 | Light-emitting diode (LED) lamp radiating system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005079065A (en) * | 2003-09-03 | 2005-03-24 | Seiko Epson Corp | Light source device, manufacturing method of light source device, and projection type display device |
| CN201448796U (en) * | 2009-03-05 | 2010-05-05 | 陈德荣 | High-power LED lamp with quick heat dissipation |
| CN102444834A (en) * | 2010-10-13 | 2012-05-09 | 罗业富 | Integrated type oil-cooling high-power LED street lamp |
| EP2549179A2 (en) * | 2011-07-21 | 2013-01-23 | Formas, S.A. | Recovery system of the heat dissipated by luminaires, lamps and led devices |
| CN203147382U (en) * | 2013-02-28 | 2013-08-21 | 周洁莹 | LED (Light Emitting Diode) lamp with improved cooling effect |
-
2014
- 2014-10-16 CN CN201410549076.XA patent/CN104296101A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005079065A (en) * | 2003-09-03 | 2005-03-24 | Seiko Epson Corp | Light source device, manufacturing method of light source device, and projection type display device |
| CN201448796U (en) * | 2009-03-05 | 2010-05-05 | 陈德荣 | High-power LED lamp with quick heat dissipation |
| CN102444834A (en) * | 2010-10-13 | 2012-05-09 | 罗业富 | Integrated type oil-cooling high-power LED street lamp |
| EP2549179A2 (en) * | 2011-07-21 | 2013-01-23 | Formas, S.A. | Recovery system of the heat dissipated by luminaires, lamps and led devices |
| CN203147382U (en) * | 2013-02-28 | 2013-08-21 | 周洁莹 | LED (Light Emitting Diode) lamp with improved cooling effect |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150121 |
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| WD01 | Invention patent application deemed withdrawn after publication |