CN104315379A - LED lamp using hot air flows for rotation radiating - Google Patents
LED lamp using hot air flows for rotation radiating Download PDFInfo
- Publication number
- CN104315379A CN104315379A CN201410582646.5A CN201410582646A CN104315379A CN 104315379 A CN104315379 A CN 104315379A CN 201410582646 A CN201410582646 A CN 201410582646A CN 104315379 A CN104315379 A CN 104315379A
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- CN
- China
- Prior art keywords
- led lamp
- radiating piece
- flower pattern
- hot air
- sun flower
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- General Engineering & Computer Science (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention discloses an LED lamp using hot air flows for rotation radiating. A plurality of LED lamp beads are welded to the lower surface of a circular aluminum substrate. The aluminum substrate is fixed on the lower end face of the central column of a sunflower type aluminum radiator central column. A transparent lampshade is mounted on the central inner cylindrical face of the radiator. A hot air flow accelerating rotor is a hollow ball. Arc-shaped air flow guide grooves are formed in the surface of the hot air flow accelerating rotor at equal distance. A heat collecting cavity is a hollow cylinder, and the lower end and the upper end of the cylinder form a rotation pair. A support shaft penetrates the ball and the cylinder to be fixedly connected with the radiator which is mounted in the heat collecting cavity. One end of a wire penetrates a support shaft hole and the radiator to be respectively connected with the anode and the cathode of the aluminum substrate. The other end of the wire is connected with a power supply. The LED lamp has the advantages that the hot air flows are used to drive the hot air flow accelerating rotor to rotate, dust is blown off, air convection on the periphery of the radiator is accelerated, radiating efficiency is increased, working temperature of the LED beads is guaranteed, and the service life is prolonged; the LED lamp using the hot air flows for rotation radiating is especially applicable to large-power LED lamps with the power above 20W, radiating materials is saved, and cost is lowered.
Description
Technical field
The present invention relates to lighting, especially relate to a kind of LED utilizing thermal current to rotate heat radiation.
Background technology
At present, LED has had been widely recognized and has applied, but the heat dissipation problem of great power LED still limits the application in the particular surroundings that LED requires at inclement condition, high brightness.
The heat radiation of LED is more and more by people are paid attention to, this is because the light decay of LED or its life-span are directly relevant with its junction temperature, bad junction temperature of dispelling the heat is just high, and the life-span is just short, often reduces by 10 DEG C of life-spans can extend 2 times according to A Leiniusi rule temperature; In addition the heating of LED also can make its spectroscopic studying; Colour temperature raises; Forward current increases (when constant voltage is powered); Reversing the current also increases; Thermal stress increases; The aging acceleration of fluorescent material epoxy etc. variety of problems, thus, the heat radiation of LED is an of paramount importance problem of LED lamp, the heat radiation most important thing especially of the high high-powered LED lamp that generates heat.
At present, high-powered LED lamp generally adopts fin radiating structure, realize heat radiation by convection current and radiation, although can by improving the material of radiator, such as effects on surface does oxidation processes, improve heat dispersion, but convection current and radiation are all be directly proportional to the area of dissipation of radiator, and the area of fin is larger, and radiating effect is better, in general, the heat of 1W power of faling apart approximately needs the efficiently radiates heat device area of 50-60 square centimeter.In order to strengthen area of dissipation, usually can adopt the method increasing height or length, but being highly increased to its effect to a certain degree can be more and more less, and length is increased to a certain degree, and junction temperature not only no longer reduces, and can raise on the contrary.Therefore for high-powered LED lamp, the heat that simple increasing radiating piece brings after effectively can not solving and increasing power.Except increase area of dissipation, the convection current accelerating air by adding air-cooler can significantly improve heat dispersion, but conventional air-cooler needs the driving that additionally increases electric power, improve the structural requirement of high-powered LED lamp, especially, in high-temperature, high humility, high dust atmosphere, the air-cooler outside radiating piece cannot be suitable for especially.
Therefore, how effectively solve the heat dissipation problem in severe environment on probation, become the development bottleneck of high-powered LED lamp, not only the area of increase radiating piece simply effectively can not improve heat radiation, more can increase cost.
Summary of the invention
For deficiency of the prior art, the object of the present invention is to provide a kind of LED utilizing thermal current to rotate heat radiation, under the existing radiating piece material of maintenance and area, heat dispersion can have been improved, thus improve the overall power of LED, significantly reduce the cost of high-powered LED lamp.
The technical solution used in the present invention is:
The present invention includes multiple LED lamp bead, circular aluminum substrate, sun flower pattern aluminum radiating piece, back shaft, thermal current accelerating rotor, heat collector cavity, electric wire and Transparent lamp shade, multiple LED lamp bead is welded on circular aluminum base lower surface, aluminium base is fixed on sun flower pattern aluminum radiating piece centered cylinder lower surface, sun flower pattern aluminum radiating piece center inner cylinder face is equipped with Transparent lamp shade, thermal current accelerating rotor is the spherosome of hollow, spherosome equidistantly has arc air-flow gathering sill on the surface, heat collector cavity is the cylinder of hollow, spherosome lower end is contained in cylinder upper end and forms revolute pair, back shaft through the spherosome of hollow and cylinder and sun flower pattern aluminum radiating piece affixed, sun flower pattern aluminum radiating piece is arranged in the heat collector cavity of hollow, one end of electric wire is just being connected aluminium base through supporting shaft hole respectively with after the centre bore of sun flower pattern aluminum radiating piece centered cylinder upper surface, negative pole, the other end of electric wire is connected with external power supply.
Between described sun flower pattern aluminum radiating piece centered cylinder lower surface and Transparent lamp shade and all fill up between multiple LED lamp bead can insulate, the glue of printing opacity and heat radiation.
The material of described thermal current accelerating rotor and heat collector cavity is plastics or aluminium.
Compared with background technology, the beneficial effect that the present invention has is:
The present invention makes full use of traditional sun flower pattern aluminum radiating piece and dispels the heat to high-powered LED lamp rapidly, design the thermal current that a thermal current accelerating rotor has concentrated sun flower pattern aluminum radiating piece periphery on this basis, utilize temperature difference to promote thermal current accelerating rotor to accelerate to rotate, the dust in surrounding environment can be blown off, and accelerate the cross-ventilation of sun flower pattern aluminum radiating piece periphery, significantly improve radiating efficiency, ensure the operating temperature of LED lamp bead, increase the service life.The present invention is particularly useful for 20W and above high-powered LED lamp, saves traditional heat-dissipating material, reduces costs; Can be used for (as poultry house, slaughter hall etc.) the various special occasions such as high temperature, high humidity, high dust and high illuminance.
Accompanying drawing explanation
Fig. 1 is that the stereochemical structure of the LED of embodiment axially splits schematic diagram.
Fig. 2 is the sectional view of the LED of embodiment.
Fig. 3 is the stereochemical structure front view of the LED of embodiment.
In figure: 1, LED lamp bead, 2, circular aluminum substrate, 3, sun flower pattern aluminum radiating piece, 4, back shaft, 5, thermal current accelerating rotor, 6, heat collector cavity, 7, electric wire, 8, Transparent lamp shade.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1 and Figure 2, the present invention includes multiple LED lamp bead 1, circular aluminum substrate 2, sun flower pattern aluminum radiating piece 3, back shaft 4, thermal current accelerating rotor 5, heat collector cavity 6, electric wire 7 and Transparent lamp shade 8, multiple LED lamp bead 1 is welded on circular aluminum substrate 2 lower surface, aluminium base 2 is fixed on sun flower pattern aluminum radiating piece 3 centered cylinder lower surface, sun flower pattern aluminum radiating piece 3 center inner cylinder face is equipped with Transparent lamp shade 8, thermal current accelerating rotor 5 is spherosomes of hollow, spherosome equidistantly has arc air-flow gathering sill on the surface, heat collector cavity 6 is cylinders of hollow, the spherosome lower end of hollow is contained in the cylinder upper end formation revolute pair of hollow, back shaft 4 through the spherosome of hollow and cylinder and sun flower pattern aluminum radiating piece 3 affixed, sun flower pattern aluminum radiating piece 3 is arranged in the heat collector cavity 6 of hollow, one end of electric wire 7 is just being connected aluminium base 2 through back shaft 4 hole respectively with after the centre bore of sun flower pattern aluminum radiating piece 3 centered cylinder upper surface, negative pole, the other end of electric wire 7 is connected with external power supply.The surface of aluminium base 2 scribbles one deck reflecting coating, is used for reflecting the light reflected by the insulation in Transparent lamp shade 8, printing opacity, thermal paste.
Between described sun flower pattern aluminum radiating piece 3 centered cylinder lower surface and Transparent lamp shade 8 and all fill up between multiple LED lamp bead 1 can insulate, the glue of printing opacity and heat radiation.
The material of thermal current accelerating rotor 5 and heat collector cavity 6 is plastics or aluminium.
External power supply is direct current, can the luminescence of Direct driver LED lamp bead.
The hollow cavity of back shaft 4 can locally increase as the built-in driving power storage chamber of LED, the driving power of corresponding watt level is housed, being used for external AC to be converted to can the direct current of driving LED lamp pearl work, thus makes LED of the present invention directly connect external ac power source.
When the present invention uses, make full use of traditional sun flower pattern aluminum radiating piece to dispel the heat to high-powered LED lamp rapidly, design the thermal current that a thermal current accelerating rotor has concentrated sun flower pattern aluminum radiating piece periphery on this basis, temperature difference drive rotor is utilized to accelerate to rotate, the dust in surrounding environment can be blown off, and accelerate the cross-ventilation of sun flower pattern aluminum radiating piece periphery, significantly improve radiating efficiency, ensure the operating temperature of LED lamp bead, increase the service life.
Above-mentioned detailed description of the invention is used for explaining and the present invention is described, instead of limits guarantor's expansion scope of the present invention, and in the protection domain of spirit of the present invention and claim, any amendment make the present invention and change, all fall into protection scope of the present invention.
Claims (3)
1. utilize thermal current to rotate a LED for heat radiation, it is characterized in that: comprise multiple LED lamp bead (1), circular aluminum substrate (2), sun flower pattern aluminum radiating piece (3), back shaft (4), thermal current accelerating rotor (5), heat collector cavity (6), electric wire (7) and Transparent lamp shade (8), multiple LED lamp bead (1) is welded on circular aluminum substrate (2) lower surface, aluminium base (2) is fixed on sun flower pattern aluminum radiating piece (3) centered cylinder lower surface, sun flower pattern aluminum radiating piece (3) center inner cylinder face is equipped with Transparent lamp shade (8), thermal current accelerating rotor (5) is the spherosome of hollow, spherosome equidistantly has arc air-flow gathering sill on the surface, heat collector cavity (6) is the cylinder of hollow, spherosome lower end is contained in cylinder upper end and forms revolute pair, back shaft (4) through the spherosome of hollow and cylinder and sun flower pattern aluminum radiating piece (3) affixed, sun flower pattern aluminum radiating piece (3) is arranged in the heat collector cavity (6) of hollow, one end of electric wire (7) is just being connected aluminium base (2) through back shaft (4) hole respectively with after the centre bore of sun flower pattern aluminum radiating piece (3) centered cylinder upper surface, negative pole, the other end of electric wire (7) is connected with external power supply.
2. a kind of LED utilizing thermal current to rotate heat radiation according to claim 1, is characterized in that: between described sun flower pattern aluminum radiating piece (3) centered cylinder lower surface and Transparent lamp shade (8) and all fill up between multiple LED lamp bead (1) can insulate, the glue of printing opacity and heat radiation.
3. a kind of LED utilizing thermal current to rotate heat radiation according to claim 1, is characterized in that: the material of described thermal current accelerating rotor (5) and heat collector cavity (6) is plastics or aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410582646.5A CN104315379A (en) | 2014-10-28 | 2014-10-28 | LED lamp using hot air flows for rotation radiating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410582646.5A CN104315379A (en) | 2014-10-28 | 2014-10-28 | LED lamp using hot air flows for rotation radiating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104315379A true CN104315379A (en) | 2015-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410582646.5A Pending CN104315379A (en) | 2014-10-28 | 2014-10-28 | LED lamp using hot air flows for rotation radiating |
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| Country | Link |
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| CN (1) | CN104315379A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201106831Y (en) * | 2007-11-09 | 2008-08-27 | 上海三思电子工程有限公司 | LED lamp radiator |
| CN101387392A (en) * | 2007-09-11 | 2009-03-18 | 陈世明 | Convection heat radiating device of led lamp |
| US20110122582A1 (en) * | 2009-11-20 | 2011-05-26 | Kwan Woo Park | Heat dissipating device |
| US8029154B2 (en) * | 2007-02-02 | 2011-10-04 | Inovus Solar, Inc. | Solar-powered light pole and LED light fixture |
| CN204176384U (en) * | 2014-10-28 | 2015-02-25 | 杭州朗拓生物科技有限公司 | A kind of LED utilizing thermal current to rotate heat radiation |
-
2014
- 2014-10-28 CN CN201410582646.5A patent/CN104315379A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8029154B2 (en) * | 2007-02-02 | 2011-10-04 | Inovus Solar, Inc. | Solar-powered light pole and LED light fixture |
| CN101387392A (en) * | 2007-09-11 | 2009-03-18 | 陈世明 | Convection heat radiating device of led lamp |
| CN201106831Y (en) * | 2007-11-09 | 2008-08-27 | 上海三思电子工程有限公司 | LED lamp radiator |
| US20110122582A1 (en) * | 2009-11-20 | 2011-05-26 | Kwan Woo Park | Heat dissipating device |
| CN204176384U (en) * | 2014-10-28 | 2015-02-25 | 杭州朗拓生物科技有限公司 | A kind of LED utilizing thermal current to rotate heat radiation |
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Application publication date: 20150128 |