CN204254358U - A kind of LED of comb teeth-shaped heat radiation - Google Patents
A kind of LED of comb teeth-shaped heat radiation Download PDFInfo
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- CN204254358U CN204254358U CN201420626635.8U CN201420626635U CN204254358U CN 204254358 U CN204254358 U CN 204254358U CN 201420626635 U CN201420626635 U CN 201420626635U CN 204254358 U CN204254358 U CN 204254358U
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- comb teeth
- aluminium base
- radiating piece
- led lamp
- lamp bead
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The utility model discloses the LED of a kind of comb teeth-shaped heat radiation.Multiple LED lamp bead is welded on above rectangular aluminium base, the groove that aluminium base is fixed on comb teeth-shaped radiating piece one middle side part is interior and perpendicular with comb, LED lamp bead outer side covers has strip Transparent lamp shade, the power source cavity depositing driving power is fixed in the middle part of comb teeth-shaped radiating piece opposite side, the one end being built in driving power two wire in power source cavity is connected respectively to the both positive and negative polarity at aluminium base two ends, the other end of two wires is connected with alternating current circuit through the hole on power source cavity top, and the both side surface of the every sheet radiating fin of comb teeth-shaped radiating piece is corrugated.LED lamp bead operational heat is delivered on comb teeth-shaped radiating piece by aluminium base, is delivered in air via cooling fin surfaces, and hot-air stablizes convection current along at the center-aisle of corrugations and extraneous air, improves radiating efficiency.The utility model is mainly used in high temperature, high humidity, height are divided in the high working environment of illumination requirement, carries out illumination application.
Description
Technical field
The utility model relates to lighting, especially relates to the LED of a kind of comb teeth-shaped 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.
Utility model content
For overcoming deficiency of the prior art, the purpose of this utility model is the LED providing a kind of comb teeth-shaped to dispel the heat, and is that a kind of structure is simple, uniform in light emission, the lighting apparatus that radiating efficiency is high.
The technical solution adopted in the utility model is:
The utility model comprises multiple LED lamp bead, strip aluminium base, strip plastic, transparent lampshade, comb teeth-shaped radiating piece and power source cavity; Multiple LED lamp bead is welded on above strip aluminium base, in the groove that strip aluminium base is fixed on comb teeth-shaped radiating piece one middle side part and layout perpendicular with comb, multiple LED lamp bead outer side covers has strip plastic, transparent lampshade, the power source cavity depositing driving power is fixed in the middle part of comb teeth-shaped radiating piece opposite side, the one end being built in two wires of the driving power in power source cavity is connected respectively to the both positive and negative polarity at strip aluminium base two ends, and the other end of two wires portals through two power lines on power source cavity top and to be connected with alternating current circuit.
Rectangular aluminium base applied atop one deck inorganic compounding reflectance coating coating of described multiple LED lamp bead welding, all fill up between space and multiple LED lamp bead outer surface between LED lamp bead and strip plastic, transparent lampshade can insulate, the glue of printing opacity and heat radiation.
The radiating fin material of described comb teeth-shaped radiating piece is aluminium, and the two sides of every sheet radiating fin are covered with the radiation tooth that external waviness angle is 60 °.
Described strip aluminium base, its length is greater than the length of skeleton in the middle of comb teeth-shaped radiating piece, and positive and negative electrode solder joint is positioned at strip aluminium base two ends, and solder joint exposes in the two end portions being greater than skeleton in the middle of comb teeth-shaped radiating piece.
Compared with background technology, the beneficial effect that the utility model has is:
1) superiority of LED lamp bead lighting angle is utilized, strip arrangement is carried out to lamp pearl, make lighting angle more concentrated, change traditional sun fancy and assemble arrangement model, utilize the illumination angle that lamp pearl itself is formed, light is fully projected the space needing illumination, improve the work illumination of lamp, exempt reflector, simplify lamp body structure; Traditional lamp pearl adopts spherical soft light cover, and a part of light scattering, to undesirable area of space, causes waste.
2) light source is strip arrangement, and arrangement is evenly distributed, and radiating piece fully contacts with lamp plate base, lamp pearl and radiator fin pitch from close to, combine fully, make full use of radiator, dispel the heat even, improving heat radiation efficiency.The spacing of lamp pearl is even, arranges compact, reduces radiator volume, saves heat sink material, and lamp chamber is inner without heat build-up point, avoids the too high internally poly-inner original paper of local temperature to cause damage and accelerated ageing.
3) cooling fin surfaces adopt 60 ° corrugated, more traditional heronsbill pattern heat radiation original paper heat-delivery surface doubles, and accelerates radiating efficiency significantly.
4) radiating fin takes the vertical parallel heat conduction cylinder both sides being arranged in lamp pearl substrate place, formation comb teeth-shaped arranges, fin clearance is upper and lower penetrating through, utilizes and forms ascending air with the temperature difference of periphery air, accelerates air flowing and improves rate of heat dispation further; The accumulation of dust is avoided in vertical out-fall, and fine dust can be stoped at light fixture radiating piece surface deposition with the ascending air that periphery air is formed, and preferably resolves the problem of conventional lamp dust deposit.
4) the space potting compound filling of heat conduction printing opacity between lamp pearl and lampshade, formed without cavity mode, the water proof and dust proof explosion-proof performance of lamp significantly can be promoted without cavity mode, under avoiding traditional mode, the Inside Air Temperature change of lamp chamber causes air pressure change, it is inner that air enters lamp chamber, causes the inner laying dust ponding in lamp chamber.
4) the utility model is as lamp body unit structure, and multiple lamp body unit can multiple any combination easily, forms more powerful lamp body.
The utility model, in particular in high temperature, high humidity, high dust, working environment (poultry house, slaughter hall etc.) that high illumination requirement is high, carries out illumination application.
Accompanying drawing explanation
Fig. 1 is that the stereochemical structure of the LED of the utility model embodiment splits schematic diagram.
Fig. 2 is the whole lamp schematic diagram of stereochemical structure of the LED of the utility model embodiment.
Fig. 3 is the top view of the LED of Fig. 2.
Fig. 4 is the partial enlarged drawing of the LED comb teeth-shaped radiating piece of Fig. 2.
In figure: 1, multiple LED lamp bead, 2, strip aluminium base, 3, strip plastic, transparent lampshade, 4, comb teeth-shaped radiating piece, 5, power source cavity, 6, wiring duct.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, Figure 2, Figure 3 shows, the utility model comprises multiple LED lamp bead 1, strip aluminium base 2, strip plastic, transparent lampshade 3, comb teeth-shaped radiating piece 4 and power source cavity 5, wiring duct 6, multiple LED lamp bead 1 is welded on (multiple LED lamp bead can be equidistant along rectangular aluminium base 2 or the arrangement of Unequal distance single row or multiple rows) above rectangular aluminium base 2, in the groove that strip aluminium base 2 is fixed on comb teeth-shaped radiating piece 4 one middle side part and layout perpendicular with comb, LED lamp bead 1 outer side covers has strip plastic, transparent lampshade 3, the power source cavity 5 depositing driving power is fixed in the middle part of comb teeth-shaped radiating piece 4 opposite side, the wiring duct 6 that two wires being built in the driving power one end in power source cavity 5 are each passed through Middle face on comb teeth-shaped radiating piece 4 is connected to the both positive and negative polarity at strip aluminium base 2 two ends, two wires of the other end portal through two power lines on power source cavity 5 top and to be connected with alternating current circuit.
As shown in Figure 1 and Figure 2, LED lamp bead 1 is welded on above rectangular aluminium base 2, rectangular aluminium base 2 applied atop one deck inorganic substances compound membrane reflectance coating, all fill up between space and multiple LED lamp bead 1 outer surface between LED lamp bead 1 and strip plastic, transparent lampshade 3 can insulate, the glue of printing opacity and heat radiation, avoid the existence of air void.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the radiating fin material of comb teeth-shaped radiating piece 4 is aluminium, the two sides of every sheet radiating fin are covered with the radiation tooth that external waviness angle is 60 °, can be doubled area of dissipation, ensure cross-ventilated passage, comb teeth-shaped radiating piece 4 back centre leaves four screw holes simultaneously, installs locating piece, the locating piece of both sides, is used for fixing power source cavity 5.Power source cavity 5 is built with the driving power of corresponding watt level, and being used for external AC to be converted to can the direct current of driving LED lamp pearl work.
As shown in Figure 2, Figure 3, Figure 4, strip aluminium base 2 length is greater than the length of the middle skeleton of comb teeth-shaped radiating piece 4, and positive and negative electrode solder joint is positioned at the back side at strip aluminium base 2 two ends, and solder joint exposes the part of comb teeth-shaped radiating piece 4 liang of side skeletons.Strip aluminium base 2, its length is greater than the length of the middle skeleton of comb teeth-shaped radiating piece 4, and positive and negative electrode solder joint is positioned at strip aluminium base 2 two ends, and solder joint exposes in the two end portions being greater than the middle skeleton of comb teeth-shaped radiating piece 4.
The utility model is as lamp body unit structure, and multiple lamp body unit can multiple any combination easily, forms more powerful lamp body.
When multiple LED lamp bead operational heat is delivered on comb teeth-shaped radiating piece by strip aluminium base, be delivered in air via every root cooling fin surfaces, hot-air stablizes convection current along at the center-aisle of corrugations and extraneous air, improves radiating efficiency.
Above-mentioned detailed description of the invention is used for explaining and the utility model is described; instead of guarantor's expansion scope of the present utility model is limited; in the protection domain of spirit of the present utility model and claim, any amendment make the utility model and change, all fall into protection domain of the present utility model.
Claims (4)
1. a LED for comb teeth-shaped heat radiation, is characterized in that: comprise multiple LED lamp bead (1), strip aluminium base (2), strip plastic, transparent lampshade (3), comb teeth-shaped radiating piece (4) and power source cavity (5), multiple LED lamp bead (1) is welded on above strip aluminium base (2), in the groove that strip aluminium base (2) is fixed on comb teeth-shaped radiating piece (4) middle side part and layout perpendicular with comb, multiple LED lamp bead (1) outer side covers has strip plastic, transparent lampshade (3), the power source cavity (5) depositing driving power is fixed in the middle part of comb teeth-shaped radiating piece (4) opposite side, the one end being built in two wires of the driving power in power source cavity (5) is connected respectively to the both positive and negative polarity at strip aluminium base (2) two ends, the other end of two wires portals through two power lines on power source cavity (5) top and to be connected with alternating current circuit.
2. the LED of a kind of comb teeth-shaped heat radiation according to claim 1, it is characterized in that: strip aluminium base (2) applied atop one deck inorganic compounding reflectance coating coating that described multiple LED lamp bead (1) is welded, all fill up between space and multiple LED lamp bead (1) outer surface between LED lamp bead (1) and strip plastic, transparent lampshade (3) can insulate, the glue of printing opacity and heat radiation.
3. the LED of a kind of comb teeth-shaped heat radiation according to claim 1, it is characterized in that: the radiating fin material of described comb teeth-shaped radiating piece (4) is aluminium, the two sides of every sheet radiating fin are covered with the radiation tooth that external waviness angle is 60 °.
4. the LED of a kind of comb teeth-shaped heat radiation according to claim 1, it is characterized in that: described strip aluminium base (2), its length is greater than the length of skeleton in the middle of comb teeth-shaped radiating piece (4), positive and negative electrode solder joint is positioned at strip aluminium base (2) two ends, and solder joint exposes in the two end portions being greater than skeleton in the middle of comb teeth-shaped radiating piece (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420626635.8U CN204254358U (en) | 2014-10-28 | 2014-10-28 | A kind of LED of comb teeth-shaped heat radiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420626635.8U CN204254358U (en) | 2014-10-28 | 2014-10-28 | A kind of LED of comb teeth-shaped heat radiation |
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| Publication Number | Publication Date |
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| CN204254358U true CN204254358U (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420626635.8U Active CN204254358U (en) | 2014-10-28 | 2014-10-28 | A kind of LED of comb teeth-shaped heat radiation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329605A (en) * | 2014-10-28 | 2015-02-04 | 浙江大学 | Comb-like radiating LED (Light Emitting Diode) lamp |
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2014
- 2014-10-28 CN CN201420626635.8U patent/CN204254358U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329605A (en) * | 2014-10-28 | 2015-02-04 | 浙江大学 | Comb-like radiating LED (Light Emitting Diode) lamp |
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