CN201081212Y

CN201081212Y - Lighting device

Info

Publication number: CN201081212Y
Application number: CNU2007201765097U
Authority: CN
Inventors: 刘昌圳; 陈盟仁
Original assignee: FEITIAN SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: FEITIAN SCIENCE AND TECHNOLOGY Co Ltd
Priority date: 2007-09-10
Filing date: 2007-09-10
Publication date: 2008-07-02
Anticipated expiration: 2017-09-10

Abstract

The utility model provides an illumination device, comprising a radiating seat and a light emitting diode. The radiating seat is provided with a containing groove and a radiating fin arranged around the containing groove, therefore, the light emitting diode is arranged in the containing groove, a lamp cover with an arc surface transmission body closes over the containing groove, heat energy produced by the light emitting diode is educed out of the radiating seat, then light emitting diode ray is sent out through the lamp cover to produce a refraction effect which is a uniform projecting light source without shade.

Description

Light-emitting device

Technical field

The utility model relates to a kind of light-emitting device, more detailed it, relate to a kind of light-emitting device of tool heat dispersion.

Background technology

Along with light emitting diode (Light Emitting Diode, hereinafter to be referred as LED) material and the continuous evolution of encapsulation technology, impel LED brightness to improve constantly, by early stage power supply indicator function, advance to have power saving, the life-span is long, the high-brightness LED illuminating product of visual advantages of higher in the thick fog, as advertisement plate, flashlight, general illumination and automobile with the instrument board backlight etc.

Basically, the luminosity of LED is directly proportional with the electric current of being flowed through, that is input current is higher, and luminosity is higher.But with the luminous efficiency of present LED, the power of input has only 15～20% to convert light to, but has nearly 80～85% to convert heat to, when improving luminosity, must increase input current, but also increases the amount that input power converts heat to simultaneously.These heat be if can't be expelled to outside the LED in good time, and the chip temperature that makes LED is too high and influence its luminous efficiency and service life.

Present led module; as shown in Figure 1; comprise bearing part, be located at led chip 10 on the bearing part with anode pin 11 and negative electrode pin 13, in order to be electrically connected anode pin 11 and the lead 12 of negative electrode pin 13 and transparent packaging body 14; this packaging body 14 is coated on the periphery of led chip 10, with protection led chip 10.

For above-mentioned led module, periphery covering packaging body 14 because of led chip 10, when increasing input current with the raising luminosity, will produce a large amount of heat can't be expelled to outside the packaging body 14, led chip 10 and integrally-built temperature are risen, 12 easily therefore fusing of this lead, and then make the led module fault.

So, because above-mentioned prior art exists heat dissipation not good, cause disappearances such as weak point in service life, therefore a kind of light-emitting device of effective these disappearances of solution is proposed, be the problem that needs to be resolved hurrily in the art technology.

Summary of the invention

The deficiencies in the prior art in view of the above, a purpose of the present utility model is to provide a kind of light-emitting device of excellent in heat dissipation effect.

Another purpose of the present utility model is to provide a kind of light-emitting device of long service life.

For achieving the above object, the utility model provides a kind of light-emitting device, comprising: radiating seat and light emitting diode, this radiating seat have storage tank and are located at this storage tank radiating fin on every side, and this light emitting diode is arranged in this storage tank.

This radiating seat bottom connects and is equipped with the side of a support plate with this storage tank of capping, and this support plate is formed with two through holes corresponding to the storage tank of this radiating seat, and this light emitting diode has two pins that pass this two through hole simultaneously, for being electrically connected to external device (ED).

Above-mentioned light-emitting device also comprises a lampshade, for having the light penetrating object of cambered surface, and this storage tank of capping.This storage tank is a circular open; this storage tank have around its wall around a recess; this lampshade has a pair of protuberance that should recess; make chimeric this recess of this protuberance; for this reason, make the lampshade dismounting on this storage tank and this storage tank of capping, not only can protect light emitting diode; when also making the light process lampshade ejaculation of this light emitting diode, can produce refraction effect.

In the above-mentioned light-emitting device, the heat that this light emitting diode produced can be conducted heat go out outside this radiating seat by this radiating fin, and heat can be accumulated in this storage tank, and then reduces the temperature in the storage tank, avoids this light emitting diode to damage.

Because light-emitting device provided by the utility model, design places the storage tank of radiating seat with light emitting diode, can the heat that this light emitting diode produced be conducted radiating seat by the radiating fin of this radiating seat periphery, significantly reduce the temperature in the storage tank, and reach the purpose of excellent in heat dissipation effect, and because of excellent in heat dissipation effect, make light emitting diode not fragile, and reach the purpose of long service life.Be outside equipped with the lampshade of capping simultaneously at this storage tank; not only can protect light emitting diode; when also making the light process lampshade ejaculation of this light emitting diode; produce refraction effect; and this lampshade can be changed the lampshade of different focal according to the degree of desire refraction; make light emitting diode see through the emitted light visibility lengthening of lampshade, and obtain even unblanketed projection source, and can get rid of the focal length adjustment problem of light emitting diode and light penetrating object.

Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to qualification of the present utility model.

Description of drawings

Fig. 1 is for showing the schematic diagram of existing light-emitting device;

Fig. 2 is for showing the three-dimensional exploded view of light-emitting device of the present utility model;

Fig. 3 is for showing the stereogram of light-emitting device of the present utility model; And

Fig. 4 is for showing the sectional side view of light-emitting device of the present utility model.

Wherein, Reference numeral

The 10LED chip

11 anode pins

12 leads

13 negative electrode pins

14 packaging bodies

2 light emitting diodes

21 pins

3 radiating seats

31 radiating fins

32 storage tanks

321 recesses

33 support plates

331 through holes

34 screws

4 lampshades

41 protuberances

The specific embodiment

Below please specific embodiment of the utility model be described conjunction with figs., know that usually the knowledgeable can understand technical characterictic of the present utility model easily and reach effect so that have in the affiliated technical field.

See also Fig. 2 to Fig. 4, for showing three-dimensional exploded view, stereogram and the sectional side view of the utility model light-emitting device.

Light-emitting device provided by the utility model, comprise: light emitting diode 2 and radiating seat 3, this radiating seat 3 presents as square structure, wherein be formed with and run through storage tank 32 as circular open, and can be for example be locked in a support plate 33 with two through holes 331 in modes such as screws 34, to seal the side that this runs through storage tank 32, be provided with radiating fin 31 around this storage tank 32, this light emitting diode 2 is arranged in this storage tank 32, and this light emitting diode 2 has two pins 21 that pass these support plate 33 2 through holes 331 and expose to this radiating seat 3, for being electrically connected to external device (ED).

Above-mentioned light-emitting device also comprises a lampshade 4, for having the light penetrating object of cambered surface, and this storage tank 32 of capping.

This storage tank 32 have around its wall around a recess 321; the outer shroud of this lampshade 4 has a pair of protuberance 41 that should recess 321; make protuberance 41 chimeric these recesses 321; and make this lampshade 4 be assembled in this storage tank 32 and this storage tank 32 of capping; allow this light emitting diode 2 be positioned at confined space, so, not only can protect light emitting diode 2; when also making light process lampshade 4 ejaculations of this light emitting diode 2, can produce the effect of refraction.

Design by protuberance 41 chimeric these recesses 321, make this lampshade 4 can change the lampshade 4 of different focal according to the degree of desire refraction, this mode makes light emitting diode 2 see through lampshade 4 emitted light visibilities and extends, and obtain even unblanketed projection source, and can get rid of light emitting diode 2 and adjust problem with the focal length of light penetrating object.

In the aforementioned light-emitting device, the heat that this light emitting diode 2 is produced, can heat be conducted outside this radiating seat 3 by the radiating fin 31 of this radiating seat 3, make heat can not be accumulated in the storage tank 32, so, can reduce the temperature in the storage tank 32, avoid this light emitting diode 2 to damage, and reach radiating effect really.

As from the foregoing, light-emitting device design of the present utility model places the storage tank 32 of radiating seat 3 with light emitting diode 2, can the heat that this light emitting diode 2 is produced be conducted radiating seat 3 by the radiating fin 31 of these radiating seat 3 peripheries, significantly reduce the temperature in the storage tank 32, compared to existing technologies, improve the effect of heat radiation really, and because of excellent in heat dissipation effect, make light emitting diode 2 not fragile, and the service life of improving light-emitting device really.Be outside equipped with the lampshade 4 of capping simultaneously at this storage tank 32; not only can protect light emitting diode 2; when also making light process lampshade 4 ejaculations of this light emitting diode 2; can produce the effect of refraction; and this lampshade 4 can be changed the lampshade 4 of different focal according to the degree of desire refraction; this mode makes light emitting diode 2 see through lampshade 4 emitted light visibilities and extends, and obtains even unblanketed projection source, and can get rid of light emitting diode 2 and adjust problem with the focal length of light penetrating object.

Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.

Claims

1. a light-emitting device is characterized in that, comprising:

Radiating seat has a storage tank and is located at this storage tank radiating fin on every side; And

Light emitting diode is arranged in this storage tank.

2. light-emitting device according to claim 1 is characterized in that, this storage tank is a circular open.

3. light-emitting device according to claim 1 is characterized in that, also comprises a lampshade, has cambered surface, and this storage tank of capping.

4. light-emitting device according to claim 3 is characterized in that, this storage tank have around its wall around a recess, this lampshade has a pair of protuberance that should recess, makes this protuberance embed this recess.

5. light-emitting device according to claim 3 is characterized in that, this lampshade is a light penetrating object.

6. light-emitting device according to claim 1 is characterized in that, this radiating seat bottom connects and is equipped with the side of a support plate with this storage tank of capping.

7. light-emitting device according to claim 6 is characterized in that, this support plate is formed with two through holes corresponding to the storage tank of this radiating seat, and this light emitting diode has two pins that pass this two through hole simultaneously, for being electrically connected to external device (ED).