CN202220997U

CN202220997U - LED light emitting device

Info

Publication number: CN202220997U
Application number: CN2011203111629U
Authority: CN
Inventors: 卢志荣; 黄勇智; 李兰军
Original assignee: Shenzhen Haotian Optoelectronics Co ltd
Current assignee: Shenzhen Haotian Optoelectronics Co ltd
Priority date: 2011-08-23
Filing date: 2011-08-23
Publication date: 2012-05-16
Anticipated expiration: 2021-08-23

Abstract

The utility model discloses an LED light emitting device, which comprises a rotation unit and an LED light emitting module arranged on the rotation unit. The rotation unit is provided with a rotation shaft. The LED light emitting module is arranged on the rotation shaft. According to the utility model, the LED light emitting module is driven to rotate at a high speed by the rotation unit, so that the high-power illumination effect can be stimulated through the high-speed rotation of the small-power LED light emitting module. Meanwhile, the heat radiation of the LED light emitting module is realized through the high-speed rotation of the LED light emitting module. The LED light emitting device also has the advantages of novel structure and ingenious design, which greatly reduces the cost of LED illumination and promotes the comprehensive popularization of LED illumination. Therefore, the LED light emitting device is provided as a preferred scheme for the low-cost and efficient illumination design.

Description

A kind of LED light-emitting device

[technical field]

The utility model relates to a kind of light-emitting device, refers in particular to a kind of LED light-emitting device.

[background technology]

Light emitting diode (Light Emitting Diode; LED) have characteristics such as power saving, light and handy and life-span be long, along with the further lifting of led chip upstream industry product brightness, LED throws light on has become the lighting source of main flow of future generation.LED illumination at present popularizes comprehensively why slower development mainly is subject to high manufacturing cost and the fuel factor problem of himself.With traditional fluorescent lamp is example, its prices of traditional T 8 pipe probably about 15 yuan, and with the price of the LED fluorescent tube of constant power up to more than 100 yuan even 200 yuan, the price of costliness is the primary obstacle that its product can not be popularized comprehensively like this.Mainly developed country begins progressively to popularize the LED illuminating product in the world now; China is in the early stage of development of LED Lighting Industry; Only in government-works, exemplary illuminating engineering and part commercial lighting, have related; Common civilian lighting of home is not infiltration as yet, and cost therefore how effectively to cut down the LED illumination is to concern the core technology problem that the LED illumination is comprehensively popularized.The fuel factor that also has LED itself in addition, LED is luminous probably to be had only 30% electric energy to be converted into luminous energy to discharge, and other 70% all is converted into heat, and is accompanied by the rising of heat, and the light efficiency of LED sharply descends.Its theoretical life-span of LED was up to 100000 hours; But because its light decay of high temperature aggravation; In fact can only maintain 50000 hours reluctantly the service life of LED, in addition lower, and heat dissipation problem therefore how effectively to control LED is the direction that the end product application studies for a long period of time.To sum up, people thirst for obtaining a kind of low cost, high-efficiency LED light emitting module always.

[utility model content]

To there being expensive, inefficient technical problem in the prior art, the purpose of the utility model is to provide a kind of low cost, high-efficiency LED light-emitting device.

In order to reach above-mentioned technical purpose; The technical scheme that the utility model is taked is a kind of LED light-emitting device; Comprise whirligig and be installed in the LED light emitting module on the whirligig, said whirligig has a rotating shaft, and said LED light emitting module is installed on the rotating shaft.

The utility model adopts whirligig drive LED light emitting module to rotate at a high speed; Low-power LED light emitting module high speed rotating mould capable of using is drawn up the effect of high-power illumination, and the rotation of high speed has simultaneously also solved the heat dissipation problem of LED light emitting module itself, the utility model novel structure; Design ingenious; Can significantly cut down the cost of LED illumination, help to promote comprehensively popularizing of LED illumination, be preferred option low-cost, the high efficiency illumination design.

Preferably, said LED light emitting module is the white light LEDs light emitting module.

Preferably, said LED light emitting module is a RGB three-primary color LED light emitting module.

Preferably, said LED light emitting module away from the light-emitting area of rotating shaft one end greater than light-emitting area near rotating shaft one end.

Preferably, said LED light emitting module is a kind of or its combination in fan-shaped, trapezoidal or the triangle.

Preferably, said whirligig is a direct current generator.

[description of drawings]

Shown in Figure 1 is the structural representation of the utility model;

Shown in Figure 2 is the utility model operation principle sketch map;

Shown in Figure 3 is the first embodiment sketch map of the utility model;

Fig. 4 is front projection figure embodiment illustrated in fig. 3;

Shown in Figure 5 is the second embodiment sketch map of the utility model.

[specific embodiment]

Technical scheme for further detailed elaboration the utility model is elaborated below in conjunction with accompanying drawing.

Like Fig. 1, shown in Figure 2; The utility model discloses a kind of LED light-emitting device; Comprise whirligig 1 and be installed in the LED light emitting module 2 on the whirligig 1; Said whirligig 1 has a rotating shaft 10 (rotating shaft is an entity, is not the virtual axis of rotation on the mathematical concept), and said LED light emitting module 2 is installed on the rotating shaft 10.Whirligig 1 can be selected direct current generator for use, and the LED light emitting module 2 of this moment is installed on the turning cylinder of direct current generator.

The utility model adopts whirligig 1 to drive LED light emitting module 2 rotation at a high speed, and low-power LED light emitting module high speed rotating mould capable of using is drawn up the effect of high-power illumination, and while rotation has at a high speed also solved the heat dissipation problem of LED light emitting module itself.The utility model novel structure designs ingeniously, can significantly cut down the cost of LED illumination, help to promote comprehensively popularizing of LED illumination, and be preferred option low-cost, the high efficiency illumination design.

The LED light emitting module 2 of the utility model can be the white light LEDs light emitting module; The rotation at a high speed under the drive of direct current generator of LED light emitting module 2 this moment; Low power light emitting module capable of using simulates high-power illuminating effect, and the light-emitting area 20 of LED light emitting module 2 will utilize the collimation error to form the light-emitting area of a full circle at this moment.The big or small visual concrete condition of the rotating speed of the utility model direct current generator and LED light emitting module 2 is carried out rational allocation, finally simulates the hot spot effect of uniform.

The light emitting module 2 of the utility model LED also can be selected RGB (red, green, blue) three-primary color LED light emitting module for use; RGB three-primary color LED light emitting module is being mixed into white light after the rotation at a high speed under the drive of motor; Light loss consumption when having avoided traditional led chip excitated fluorescent powder; Improve the utilization rate of the effective light of led chip, reduced the product cost of white-light illuminating.RGB three-primary color LED light emitting module is appreciated that to be a light emitting module, and this moment, RGB three-primary color LED or led chip can be distributed on the same circumference according to replacing corresponding relationship, and the utility model preferably adopts the structure of the integrated encapsulation of COB.Certainly RGB three-primary color LED light emitting module also can be respectively glow, three luminous plaques of green glow, blue light, as shown in Figure 5, the RGB three-primary color LED light emitting module of this moment can be that integral structure also can be three modular structures of light emitting module.

As shown in Figure 1, the LED light emitting module 2 of the utility model can be " one " font; Also can be " ten " font.LED light emitting module 2 can be provided with a plurality of; As Fig. 3, shown in Figure 4 be the combination of 3 LED

light emitting modules

21,22,23 of equidistant ring array, this combination can be an integral type, also combined type; The preferred combined type that adopts is to carry out rational allocation according to actual needs.

As shown in Figure 5; In order to make LED light emitting module 2 when rotating at a high speed, simulate uniform hot spot; Greater than the width h2 near the light-emitting area of rotating shaft 10 1 ends, LED light emitting module 2b, 2c also follow above rule to LED light emitting module 2a away from the width h1 of the light-emitting area of rotating shaft 10 1 ends.

The LED light emitting module 2 of the utility model is for can make a kind of or its combination in fan-shaped, trapezoidal or the triangle, and is as shown in Figure 5, and being shaped as of LED light emitting module 2a, 2b, 2c is fan-shaped.

In order more effectively to solve heat dissipation problem; Can be horizontally disposed with the radiating groove or the louvre (not shown) of a plurality of perforations in the substrate of LED light emitting module 2; The opening of louvre or radiating groove should be towards the direction of the rotation of LED light emitting module 2, promptly connects louvre or radiating groove that two sides of fan-shaped light emitting module form, and a plurality of cellular ventilation slots or air vent are set in substrate increases its area of dissipation with this; Quicken cross-ventilation; Alleviate the weight of LED light emitting module 2, can promote the rotating speed of whole LED light emitting module 2, better heat radiating effect to be provided and to go out light effect.

The LED light emitting module 2 of the utility model can be through direct current generator the rotating shaft power supply, add the both positive and negative polarity elastic brush at the other end of rotating shaft and can realize energising.The power supply mode of the LED light emitting module 2 of the utility model is never limited to above institute and is given an actual example, and also can adopt alternate manner to supply power, like the wireless power of electromagnetic induction form etc.

The utility model not only is applied in the white-light illuminating field, also can be applicable in the LED matrix of single wavelength light.

The above only with convenient explanation the utility model, in not breaking away from the creation spirit category of the utility model, knows this technological any simple modification and distortion that personnel did, still belongs to the protection domain of the utility model.

Claims

1. LED light-emitting device, it is characterized in that: comprise whirligig and be installed in the LED light emitting module on the whirligig, said whirligig has a rotating shaft, and said LED light emitting module is installed on the rotating shaft.

2. a kind of LED light-emitting device according to claim 1 is characterized in that: said LED light emitting module away from the width of the light-emitting area of rotating shaft one end greater than width near the light-emitting area of rotating shaft one end.

3. a kind of LED light-emitting device according to claim 2 is characterized in that: said LED light emitting module is a kind of or its combination in fan-shaped, trapezoidal or the triangle.

4. a kind of LED light-emitting device according to claim 2 is characterized in that: said LED light emitting module is the white light LEDs light emitting module.

5. a kind of LED light-emitting device according to claim 2 is characterized in that: said LED light emitting module is a RGB three-primary color LED light emitting module.

6. according to each described a kind of LED light-emitting device of claim 1 to 5, it is characterized in that: said whirligig is a direct current generator.