CN103604091B - LED (light emitting diode) down lamp - Google Patents

LED (light emitting diode) down lamp Download PDF

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Publication number
CN103604091B
CN103604091B CN201310598385.1A CN201310598385A CN103604091B CN 103604091 B CN103604091 B CN 103604091B CN 201310598385 A CN201310598385 A CN 201310598385A CN 103604091 B CN103604091 B CN 103604091B
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led
radiator
cup
green
red
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CN201310598385.1A
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CN103604091A (en
Inventor
林英强
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Jiangmen Lubani Industrial Development Co., Ltd.
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林英强
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Abstract

The invention discloses an LED (light emitting diode) down lamp. The LED down lamp comprises a barrel, an LED luminous subassembly, a radiator and a reflection cup, wherein the LED luminous subassembly comprises a red, green and blue full-color LED chip and an IC (integrated circuit) controller controlling the same; the reflection cup comprises a cup body and a connecting portion which is integrally formed on the bottom of the cup body; the connecting portion is provided with an aluminum alloy mounting rack; the radiator is arranged on the bottom of the outer side of the aluminum alloy mounting rack; the cup body is provided with a granular concave-convex surface; a reflection cover is also arranged between the red, green and blue full-color LED chip and the cup body; the radiator comprises a body and arc-shaped radiating fins; the scattered arc-shaped radiating fins are densely distributed on the excircle wall of the body; a recess is formed in a scattered end of each arc-shaped radiating fin; the recesses are positioned on the same height or sequentially rise or fall gradually, so that a groove surrounding the axle center of the body is formed; and radial air vents are also formed in the body. The LED down lamp emits soft and natural light, and is variable in color, high in brightness, high in radiating effect and long in service life.

Description

A kind of LED down
Technical field
The present invention relates to a kind of Down lamp, particularly relate to a kind of light reflection structure and radiator structure of LED down.
Background technology
LED down be a kind of be embedded into light in ceiling vertical under the lighting penetrated.LED down does not occupy the interior space, in indoor location LED down, because the confidentiality of light fixture, can not use the sensation producing compressing, and warm effect can be produced, but LED down beam angle of the prior art belongs to optically focused, light is more concentrated, and comparison of light and shade is too strong, and color is single.During the light that the eyes direct view led lamp of people directly sends, can feel dazzling, nature.In addition, a large amount of heat can be produced while LED lamp bead luminescence, as in time these heats not given out cylindrical shell rapidly, the light rapid decay causing LED lamp bead to send, energy consumption increase by the heat be deposited in around LED lamp bead and in cylindrical shell, thus affect stability and the service life of LED lamp bead, the radiating fin of radiator of the prior art is only arrange around radiator body, and the hot-air between radiating fin is difficult to flowing, and radiating effect is undesirable.
Summary of the invention
The present invention is intended to solve above-mentioned mentioned technical problem, provide a kind of light soft natural, color change is various, brightness is high, the LED down of good heat dissipation effect, long service life.
The present invention is realized by following technical scheme:
A kind of LED down, comprises cylindrical shell, LED luminescence component, radiator and reflector, described LED luminescence component comprises red, green, blue all-colour LED chip and control described red, green, the IC controller of blue all-colour LED chip, described reflector comprises cup and at the integrated connecting portion of bottom of cup, described connecting portion is open cylindrical shape, is wherein provided with by being threaded into fixing aluminium alloy installing rack, described red, green, blue all-colour LED chip is fixed on described aluminium alloy installing rack inside bottom and luminous towards described cup, described aluminium alloy installing rack exterior bottom is provided with described radiator, described radiator is arranged in described cylindrical shell, described cylindrical shell is provided with air vent on the described radiator position of correspondence, described red, green, be coated with heat dissipating silicone grease between blue all-colour LED chip and aluminium alloy installing rack, described cup is provided with granular male and fomale(M&F), described red, green, also be provided with reflecting cover between blue all-colour LED chip and described cup, be provided with light-passing board between described reflecting cover and described cup, described light-passing board is coated with refraction film, described radiator comprises body and arc radiating fin, described body is the cylinder of hollow, described IC controller is arranged in the cavity of body, the inner round wall of described body is provided with and cylindrical shell and red, green, blue all-colour LED chip carries out the joint pin be connected and fixed, the axle center of described joint pin is provided with the screw hole of through joint pin, the cylindrical wall of described body is densely covered with the arc radiating fin in divergent shape, described arc radiating fin is provided with recess away from dispersing on end of body, described recess is all on sustained height or successively and is elevated gradually, thus the groove formed around described body axle center, described body is also provided with radial passage.
Further, described IC controller comprises IC chip, is integrated with CRV linear regulator, PW light adjusting controller, power tube driver module, MWP low voltage power devices, the grid setting circuit of external high pressure power device, power device and signal generator in described IC chip; Wherein, CRV linear regulator is connected with the output of power device, PW light adjusting controller is connected with signal generator, signal generator connects the grid of MWP low voltage power devices by power tube driver module, the grid of power device is connected with grid position circuit, and output is connected with the input of MWP low voltage power devices.
Further, described male and fomale(M&F) is coated with reflective membrane.
Further, described reflecting cover is coated with reflective membrane.
Further, described aluminium alloy installing rack is connected by screw with between radiator or the mode of welding is fixed.
Further, heat dissipating silicone grease is coated with between described aluminium alloy installing rack and radiator.
Further, described aluminium alloy installing rack and radiator one-body molded.
Further, described arc radiating fin and described body are formed in one.
Further, described radiator is fixed in the bottom in described cylindrical shell, is connected with described bottom by screw.
The invention has the beneficial effects as follows:
The light that red, green, blue all-colour LED chip sends is through after the refraction film that light-passing board applies, radiation direction deflects, by the granular male and fomale(M&F) that cup is arranged, make light, in reflector, multiple reflections occur, and finally light is irradiated to the neighboring area of Down lamp mouth, be reflected to cup close to the position at Down lamp mouth edge light then with the angle close to level to the injection of Down lamp surrounding, thus increase the range of exposures of Down lamp.Meanwhile, the brightness being controlled three kinds of basic colors by IC controller makes it possible to mix required color, and after multiple reflections, obtains soft, natural light and uniform color.Reflecting cover is set and on male and fomale(M&F), reflecting cover, sets up reflective membrane and can highlight, thus can realize using the LED down of lesser amt can irradiate larger scope, be conducive to saving electric energy.
End of dispersing on radiating fin is provided with recess, and all recesses are all on sustained height or be successively elevated, thus the groove formed around radiator outline, when indoor are free air-flow to move, air flows into from the air vent of cylinder lateral wall windward side, portion of air wherein carries out heat exchange along groove and radiating fin, and flows out from the leeward side air vent of cylinder lateral wall; Heat exchange is carried out with radiating fin between another part then enters into radiating fin radiating surface by groove, and along the radiating surface of radiating fin from the air vent outflow tube of cylinder body bottom.Because IC controller is arranged on the hollow space of radiator body, by arranging radial direction through hole on radiator body, making air can form convection current inside and outside body, accelerating heat radiation.In addition, radiating fin is designed to the area of dissipation that arc can increase radiating fin, strengthens the heat-sinking capability of radiator.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail, wherein:
Fig. 1 is the generalized section of LED down;
Fig. 2 is the radiator A-A sectional view in Fig. 1.
Detailed description of the invention
As shown in Figure 1, with being mainly provided with reflector 1, red, green, blue all-colour LED chip 4, radiator 3 in the cylindrical shell 8 of mounting bracket 7.Reflector 1 comprises cup 11 and connecting portion 12, and cup 11 and connecting portion 12 are formed in one.Connecting portion 12 is in open cylindrical shape, and the mode that connecting portion 12 and aluminium alloy installing rack 2 are threaded connection is connected and fixed.Red, green, blue all-colour LED chip 4 is fixed by screws in the inside bottom of aluminium alloy installing rack 2 and luminous towards cup 11, and is coated with heat dissipating silicone grease between the two.Radiator 3 is fixed on the exterior bottom of aluminium alloy installing rack 2 by the mode that screw connects, and be coated with heat dissipating silicone grease between the two, the heat that red, green, blue all-colour LED chip 4 sends first is delivered to and aluminium alloy installing rack 2 is delivered to radiator 3 again dispels the heat, aluminium alloy installing rack 2 also can be connected with radiator 3 in a welding manner or integrally casting shaping.Cup 11 is horn-like structure, its medial surface is provided with granular male and fomale(M&F) 13, male and fomale(M&F) 13 makes the light generation diffuse reflection be mapped on it, and the light of different colours that therefore red, green, blue all-colour LED chip 4 sends fully can mix in cup, makes the light that recalls softer, even.Reflecting cover 5 is also provided with between red, green, blue all-colour LED chip 4 and cup 11, light-passing board 6 is provided with between reflecting cover 5 and cup 11, the lower surface of light-passing board 6 is coated with refraction film, refraction film changes the direction of the light that red, green, blue all-colour LED chip 4 sends, make on its directive cup 11, and part is reflected from the light on reflected back toward refractive film male and fomale(M&F) 13, avoid light again through light-passing board 6, reduce the decay of light.For improving the luminous efficiency of red, green, blue all-colour LED chip 4, can male and fomale(M&F) 13 on cup 11, reflecting cover 5 applies reflective membrane.Reflecting cover 5, light-passing board 6, by the crimping on aluminium alloy installing rack 2 top, are fixedly arranged in connecting portion 12.
As shown in Figure 1 and Figure 2, the sidewall of cylindrical shell 8 and bottom are all provided with air vent 81 on corresponding radiator 3 position.Body 30 and arc radiating fin 32 is comprised by the radiator 3 of aluminum alloy materials casting, the body 30 of radiator 3 is the cylinder of hollow, the inner round wall of body 30 is provided with the joint pin 35 paralleled with the axis of radiator 3, the axle center of joint pin 35 is provided with the screw hole 34 of through joint pin 35, the normal form that screw hole 34 one end is connected by screw is connected with the bottom of cylindrical shell 8, and the mode that the other end is then also connected by screw is connected with red, green, blue all-colour LED chip 4.The cylindrical wall of body 30 is densely covered with the arc radiating fin 32 of divergent shape, dispersing in end outer rim of arc radiating fin 32 is provided with recess 33 and all recesses 33 are on sustained height, thus forms the groove around radiator 3 outline.See Fig. 1, the cross section of recess 33 is trapezoidal, can also be semicircle, arc, rectangle, stairstepping etc.Certainly, recess 33 on adjacent radiating fin 32 also can rise gradually successively around the axle center of body 30 or decline gradually, the structure risen gradually can drive the hot-air spiral escalation on arc radiating fin 32, and radiating effect is best, but processing inconvenience relatively.For making the air circulation in the hollow region of body 30, the heat accelerating this region sheds, can also radial passage 31 be set on body 30, air vent 81 leaked-in air from cylindrical shell 8 sidewall be guided into this region, and discharges from the air vent 81 of the bottom of cylindrical shell 8.
LED luminescence component comprises red, green, blue all-colour LED chip 4 and controls the IC controller 41 of said chip.IC controller 41 is arranged in the cavity at body 30 center, and is electrically connected with red, green, blue all-colour LED chip 4 by wire.Meanwhile, IC controller 41 is be connected with civil power by wire equally, and therefore, IC controller 41 also has the function civil power of 220V being converted to low-voltage needed for red, green, blue all-colour LED chip 4 and circuit and comprising.IC controller comprises IC chip, IC core Embedded CRV linear regulator, PW light adjusting controller, power tube driver module, MWP low voltage power devices, the grid setting circuit of external high pressure power device, power device, signal generator, CRV linear regulator is connected with the output of power device; PW light adjusting controller is connected with signal generator; Signal generator connects the grid of MWP low voltage power devices by power tube driver module; The grid of power device is connected with grid position circuit, and output is connected with the input of MWP low voltage power devices.The different brightness acting as adjustment ruddiness, blue light, green glow of IC controller 41.According to the principle of color combination, being purple light after ruddiness and blue light combine, is green light after blue light and green glow combine, and is gold-tinted after ruddiness and green glow combine, and is white light after ruddiness, blue light, green glow three kinds of light combinations.By the different brightness of adjustment ruddiness, blue light, green glow, the shades of colour needed for user can be mixed.
Above embodiment is only not limited in order to technical scheme of the present invention to be described, all do not depart from spirit and scope of the invention any amendment or equivalently to replace, it all should be encompassed in the scope of technical solution of the present invention.

Claims (8)

1. a LED down, comprise cylindrical shell, LED luminescence component, radiator and reflector, described radiator comprises body and arc radiating fin, described body is the cylinder of hollow, the cylindrical wall of described body is densely covered with the arc radiating fin in divergent shape, it is characterized in that: described LED luminescence component comprises red, green, blue all-colour LED chip and control described red, green, the IC controller of blue all-colour LED chip, described reflector comprises cup and at the integrated connecting portion of bottom of cup, described connecting portion is open cylindrical shape, wherein be provided with by being threaded into fixing aluminium alloy installing rack, described red, green, blue all-colour LED chip is fixed on described aluminium alloy installing rack inside bottom and luminous towards described cup, described aluminium alloy installing rack exterior bottom is provided with described radiator, described radiator is arranged in described cylindrical shell, described cylindrical shell is provided with air vent on the described radiator position of correspondence, described red, green, heat dissipating silicone grease is coated with between blue all-colour LED chip and aluminium alloy installing rack, described cup is provided with granular male and fomale(M&F), described red, green, also reflecting cover is provided with between blue all-colour LED chip and described cup, light-passing board is provided with between described reflecting cover and described cup, described light-passing board is coated with refraction film, described IC controller is arranged in the cavity of body, the inner round wall of described body is provided with the joint pin carrying out with cylindrical shell and red, green, blue all-colour LED chip being connected and fixed, the axle center of described joint pin is provided with the screw hole of through joint pin, described arc radiating fin is provided with recess away from dispersing on end of body, described recess is all on sustained height or successively and is elevated gradually, thus the groove formed around described body axle center, described body is also provided with radial passage.
2. a kind of LED down according to claim 1, is characterized in that: described male and fomale(M&F) is coated with reflective membrane.
3. a kind of LED down according to claim 1, is characterized in that: described reflecting cover is coated with reflective membrane.
4. a kind of LED down according to claim 1, is characterized in that: described aluminium alloy installing rack is connected by screw with between radiator or the mode of welding is fixed.
5. a kind of LED down according to claim 1, is characterized in that: be coated with heat dissipating silicone grease between described aluminium alloy installing rack and radiator.
6. a kind of LED down according to claim 1, is characterized in that: described aluminium alloy installing rack and radiator one-body molded.
7. a kind of LED down according to claim 1, is characterized in that: described arc radiating fin and described body are formed in one.
8. a kind of LED down according to claim 1, be is characterized in that: described radiator is fixed in the bottom in described cylindrical shell, is connected by screw with described bottom.
CN201310598385.1A 2013-11-22 2013-11-22 LED (light emitting diode) down lamp Active CN103604091B (en)

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Application Number Priority Date Filing Date Title
CN201310598385.1A CN103604091B (en) 2013-11-22 2013-11-22 LED (light emitting diode) down lamp

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CN103604091B true CN103604091B (en) 2015-07-08

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201897118U (en) * 2010-12-06 2011-07-13 李廷帅 High-power integrated LED (light-emitting diode) tube lamp
CN201909203U (en) * 2010-11-30 2011-07-27 深圳市百得力电子有限公司 LED light fitting provided with fan cover
CN202195299U (en) * 2011-07-25 2012-04-18 苏州晶雷光电照明科技有限公司 Large-power light-emitting diode (LED) lamp with long service life
CN202203905U (en) * 2011-08-19 2012-04-25 宁波安迪光电科技有限公司 LED (light emitting diode) cylinder lamp and lamp body thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102679186B (en) * 2011-03-14 2015-08-12 富瑞精密组件(昆山)有限公司 LED lamp

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201909203U (en) * 2010-11-30 2011-07-27 深圳市百得力电子有限公司 LED light fitting provided with fan cover
CN201897118U (en) * 2010-12-06 2011-07-13 李廷帅 High-power integrated LED (light-emitting diode) tube lamp
CN202195299U (en) * 2011-07-25 2012-04-18 苏州晶雷光电照明科技有限公司 Large-power light-emitting diode (LED) lamp with long service life
CN202203905U (en) * 2011-08-19 2012-04-25 宁波安迪光电科技有限公司 LED (light emitting diode) cylinder lamp and lamp body thereof

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Effective date of registration: 20151008

Address after: 529000, three, 7, 168, hi tech West Road, Jianghai District, Guangdong, Jiangmen

Patentee after: JIANGMEN LUBANNI PHOTOELECTRIC TECHNOLOGY CO., LTD.

Address before: 529000 Guangdong Province, Jiangmen Jianghai Ma Ju Long Li

Patentee before: Lin Yingqiang

C41 Transfer of patent application or patent right or utility model
CP01 Change in the name or title of a patent holder

Address after: 529000 Building No. 168, Gaoxin West Road, Jianghai District, Jiangmen City, Guangdong Province

Patentee after: Jiangmen Lubani Industrial Development Co., Ltd.

Address before: 529000 Building No. 168, Gaoxin West Road, Jianghai District, Jiangmen City, Guangdong Province

Patentee before: JIANGMEN LUBANNI PHOTOELECTRIC TECHNOLOGY CO., LTD.

CP01 Change in the name or title of a patent holder