CN202419179U

CN202419179U - Light emitting diode (LED) bulb heat radiating structure

Info

Publication number: CN202419179U
Application number: CN2011203654061U
Authority: CN
Inventors: 文波; 杨波勇
Original assignee: GUANGZHOU JUJING ENERGY TECHNOLOGY Co Ltd
Current assignee: GUANGZHOU JUJING ENERGY TECHNOLOGY Co Ltd
Priority date: 2011-09-23
Filing date: 2011-09-23
Publication date: 2012-09-05
Anticipated expiration: 2021-09-23

Abstract

The utility model discloses a light emitting diode (LED) bulb heat radiating structure, which comprises a bulb adapter, a bulb holder which is fixed on the bulb adapter and a heat radiator which is arranged on the bulb holder, wherein a through cavity is arranged inside the heat radiator, a power supply is arranged inside the cavity, the upper surface of the heat radiator is fixedly provided with a heat conduction substrate, the heat conduction substrate is provided with a plurality of LEDs, a transmission housing covers the LEDs and the heat conduction substrate and is fixed on the heat radiator, the upper surface of the bulb holder is provided with a plurality of ribs in a radiation shape, and the heat radiator is fixed on the upper surface of the bulb holder to form a plurality of ventilation clearances. Due to the adoption of the LED bulb heat radiating structure, the heat radiating efficiency of an LED bulb can be improved, the heat produced by the power supply can be rapidly dissipated into the air and can be prevented from being accumulated inside the heat radiator to influence the service life of the power supply, and the service life of the LED bulb can be prolonged.

Description

A kind of LED bulb heat radiation structure

[technical field]

The utility model relates to a kind of radiator structure, particularly relates to a kind of radiator structure of LED bulb.

[background technology]

LED is the abbreviation of English light emitting diode (light emitting diode), and LED is a kind of semiconductor that can electric energy be converted into visible light, and its principle luminous with incandescent lamp dependence tungsten filament heating is different.LED is luminous, has long, numerous advantages such as light efficiency is high, radiationless, low-power consumption of life-span, and along with energy-conservation and the proposition green illumination theory, LED is introduced in the lighting as light source gradually.

At present, the light emitting sources that daylight lighting lamp adopted such as daily bulb, desk lamp are to be main with incandescent lamp bulb or fluorescent tube basically, yet; The electro-optical efficiency of incandescent lamp bulb and fluorescent tube is all lower; And its heat is big, and service life is short, generally only has about 3000 hours.

LED then can overcome above shortcoming, and its internal characteristics has determined that it is optimal light source:

(1) volume is little, and LED is that a very little wafer is encapsulated in epoxy resin the inside basically, thus its very little, very light.

(2) power consumption is low, and in general the operating voltage of LED is 2-3.6V.Operating current is 0.02-0.03A.The electricity of its consumption is no more than 0.1W in other words.

(3) long service life is direct current supply because the LED lamp adopts, so under appropriate power drives, can reach about 10 hours the service life of LED.

(4) environmental protection, LED is made by nontoxic material, and containing mercury unlike fluorescent lamp can pollute, and LED also can recycling simultaneously.

(5) sturdy and durable, LED is encapsulated in the epoxy resin the inside completely, and it is all firmer than bulb and fluorescent tube.Also do not have loosening part in the lamp body, it is non-damageable that these characteristics make that LED can say so.

Because the significant advantage of LED some have also occurred with the bulb of LED as light source on the now domestic market, but require lower operating temperature during its work, too high operating ambient temperature can use its lost of life even burn.The led light source device in use, its light-emitting component and circuit board and driving power also can produce certain heat, need in time this heat to be distributed, and are in best operating temperature to keep the LED element, and it can be increased the service life, and improve light efficiency.Present LED bulb all exists radiating efficiency not high; Heat accumulation is distributed in radiator does not go out; Shortened the service life of LED bulb greatly; The heat that the LED bulb is distributed in event is dispersed in the air fast and goes, and is the technical problem that industry technical staff must solve with the radiating efficiency that improves the LED bulb.

[utility model content]

The technical problem that the utility model will solve is the LED bulb heat radiation structure that improves radiating efficiency, increases the service life.

The utility model is to solve above-mentioned technical problem through following technical proposals: a kind of LED bulb heat radiation structure, comprise lamp holder, and be fixed on the lamp socket on the lamp holder; Be arranged on the radiator on the lamp socket, in said radiator, be provided with the cavity of a perforation, in said cavity, be placed with a power supply; Upper surface at said radiator is fixed with heat-conducting substrate; Said heat-conducting substrate is provided with a plurality of LED, and a printing opacity cell-shell covers said LED and heat-conducting substrate and is fixed on the said radiator, it is characterized in that; Upper surface at lamp socket is provided with a plurality of radial ribs, and the upper surface that said radiator is fixed on said lamp socket forms a plurality of ventilative gaps.

The beneficial effect of the utility model is: because the utility model is provided with a plurality of radial ribs at the upper surface of lamp socket; The upper surface that radiator is fixed on lamp socket forms a plurality of ventilative gaps; Design can improve the radiating efficiency of LED bulb like this, the quick heat that power supply is sent is dispersed in the air and goes, avoids heat accumulation in radiator; Influence the service life of power supply, prolong the service life of LED bulb.

Preferably, in the upper end of said radiator one retainer ring is installed, said cell-shell is installed on the said retainer ring.

Preferably, the inner surface of said retainer ring is provided with an internal thread, the top of said radiator be provided with one with the external screw thread of said internal thread coupling, said retainer ring is fixed on the said radiator through the external screw thread that is complementary with it.

Preferably, said lamp holder is fixed on the said lamp socket through being threaded.

[description of drawings]

Below in conjunction with accompanying drawing the utility model is explained further details.

Fig. 1 is the decomposition texture sketch map of the utility model.

Fig. 2 is the assembly structure sketch map of the utility model shown in Figure 1.

Fig. 3 is the perspective view of the utility model lamp socket.

[specific embodiment]

Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to specify the technical scheme of the utility model.

With reference to accompanying drawing 1,2, shown in 3, the utility model comprises lamp holder 10, is fixed on the lamp socket 20 on the lamp holder 10; Be arranged on the radiator 30 on the lamp socket 20; Said radiator 30 is fixed on through screw 37 in the fixing hole 24 of said lamp socket 20, in said radiator 30, is provided with the cavity 32 of a perforation, in said cavity 32, is placed with a power supply 38; Upper surface at said radiator 30 is fixed with heat-conducting substrate 40; Said heat-conducting substrate 40 is provided with a plurality of LED42, and said heat-conducting substrate 40 is fixed on through screw 37 on the upper surface of said radiator 30, and a printing opacity cell-shell 50 covers said LED42 and heat-conducting substrate 40 and is fixed on the upper surface of said radiator 30; Upper surface at lamp socket 20 is provided with a plurality of radial ribs 22; Promptly be arranged at intervals with a plurality of ribs 22 on the limit, upper surface outer of said lamp socket 20, the upper surface that said radiator 30 is fixed on said lamp socket 20 forms a plurality of ventilative gaps 26, and is as shown in Figure 2.In the upper end of said radiator 30 retainer ring 46 is installed, said cell-shell 50 is installed on the said retainer ring 46.The inner surface of said retainer ring 46 is provided with internal thread, the top of said radiator 30 be provided with one with the external screw thread 34 of said internal thread coupling, said retainer ring 46 is fixed on the said radiator 30 through the external screw thread 34 that is complementary with it.Said lamp holder 10 is fixed on through being threaded on the said lamp socket 20.

The above in the spiritual category that does not break away from the utility model creation, is familiar with the protection domain that this technological various simple covert and modification that those skilled in the art did still belongs to the utility model all with the convenient the utility model of explaining.

Claims

1. a LED bulb heat radiation structure comprises lamp holder, is fixed on the lamp socket on the lamp holder; Be arranged on the radiator on the lamp socket; In said radiator, be provided with the cavity that connects, in said cavity, be placed with a power supply, be fixed with heat-conducting substrate at the upper surface of said radiator; Said heat-conducting substrate is provided with a plurality of LED; One printing opacity cell-shell covers said LED and heat-conducting substrate and is fixed on the said radiator, it is characterized in that: the upper surface at lamp socket is provided with a plurality of radial ribs, and the upper surface that said radiator is fixed on said lamp socket forms a plurality of ventilative gaps.

2. according to the said LED bulb heat radiation of claim 1 structure, it is characterized in that: in the upper end of said radiator one retainer ring is installed, said cell-shell is installed on the said retainer ring.

3. according to the said LED bulb heat radiation of claim 2 structure; It is characterized in that: the inner surface of said retainer ring is provided with an internal thread; The top of said radiator be provided with one with the external screw thread of said internal thread coupling, said retainer ring is fixed on the said radiator through the external screw thread that is complementary with it.

4. according to the said LED bulb heat radiation of claim 3 structure, it is characterized in that: said lamp holder is fixed on the said lamp socket through being threaded.