CN203421525U

CN203421525U - LED bulb

Info

Publication number: CN203421525U
Application number: CN201320476296.5U
Authority: CN
Inventors: 张智超; 周天; 王继学
Original assignee: ZHENGZHOU NTC OPTOELECTRONICS TECHNOLOGY Co Ltd
Current assignee: ZHENGZHOU NTC OPTOELECTRONICS TECHNOLOGY Co Ltd
Priority date: 2013-08-06
Filing date: 2013-08-06
Publication date: 2014-02-05
Anticipated expiration: 2023-08-06

Abstract

The utility model relates to an LED bulb. The LED bulb comprises an LED lamp body and a lamp holder, wherein the LED lamp body comprises an LED light source plate, a lamp shade, a radiator and a power source, the radiator comprises a barrel-shaped central heat dissipation shell body, the periphery of the outer wall of the central heat dissipation shell body outwards extends to form N longitudinal cooling fins, the LED light source plate is installed on the outer bottom surface of the central heat dissipation shell body, the power source is arranged in the central heat dissipation shell body, the lamp shade is an inverted-sphere-shaped lamp shade, the upper edge of the inverted-spherical lamp shade is fixedly connected with the outer sides of the bottoms of the N cooling fins, and the upper portion of the central heat dissipation shell body is connected with the lamp holder through an insulating connecting pipe. The LED bulb is simple in structure and good in heat dissipation performance.

Description

LED bulb

(1), technical field: the utility model relates to a kind of lighting, particularly a kind of LED bulb.

(2), background technology: along with the development of LED technology, increasing lamp adopts great power LED luminous tube to manufacture, and great power LED luminous tube has the advantages such as energy-saving and environmental protection, reliability is high, the life-span is long.On existing market, some bulb also adopts LED luminous tube to make, although these bulbs have the advantages such as energy-saving and environmental protection, its heat dispersion is not so good, affects service life and the reliability of light fixture, is not suitable with the requirements at the higher level of market to LED bulb.

(3), utility model content:

The technical problems to be solved in the utility model is: not enough for prior art, a kind of simple in structure, LED bulb that thermal diffusivity is good is provided.

The technical solution of the utility model:

A kind of LED bulb, contain LED lamp body and lamp holder, LED lamp body contains LED light source plate, lampshade, radiator and power supply, the center radiating shell that radiator contains drum-shaped, at the individual radiating fin longitudinally of the protruding N of outer wall surrounding of center radiating shell, LED light source plate is arranged on the outer bottom of center radiating shell, power supply is arranged in the radiating shell of center, lampshade is inverted spheric lampshade, the top edge of inverted spheric lampshade is fixedly connected with the outside of N radiating fin bottom, the top of center radiating shell is connected with lamp holder by an insulation tube connector, N is more than or equal to 2 natural number.

The top of center radiating shell medial surface is provided with radiator internal thread, the medial surface of lamp holder is provided with lamp holder internal thread, the upper and lower of insulation tube connector lateral surface is respectively equipped with connection external screw thread and lower connection external screw thread, center radiating shell is connected externally threaded coupling and is connected with the bottom of insulation tube connector with lower by radiator internal thread, lamp holder by lamp holder internal thread with on be connected externally threaded coupling and be connected with the top of the tube connector that insulate.

Lamp holder is screw socket.

The top edge of inverted spheric lampshade is fixedly connected with the outside of N radiating fin bottom by a retainer plate, and the outside of retainer plate and N radiating fin bottom is threaded connection.

In power supply, contain power-switching circuit, the input of power-switching circuit is connected with the electrode on lamp holder, the output of power-switching circuit is connected with the LED luminous tube on LED light source plate, and the connecting line between the output of power-switching circuit and LED luminous tube passes from the through hole of center radiating shell bottom.

LED light source plate is circular, or is regular polygon.

N radiating fin of the outer wall surrounding of center radiating shell is uniformly distributed, and N radiating fin and center radiating shell are integral type structure, and the outline of N radiating fin and the outline of lampshade are combined together to form an ellipsoid.

The material of insulation tube connector is plastics, and the material of lampshade is light transmissive material.

Insulation tube connector plays the double effects of insulation isolation and heat isolation, has increased the security of LED bulb.

The beneficial effects of the utility model:

1, the center radiating shell that the radiator in the utility model contains drum-shaped, center radiating shell

The protruding N of outer wall surrounding is radiating fin longitudinally, and LED light source plate is arranged on the outer bottom of center radiating shell, and the top of radiator is connected with lamp holder, bottom installation lampshade, whole bulb simple in structure, production cost is low.

2, the N of radiator of the present utility model longitudinally the gap between radiating fin for longitudinally,

The air being conducive in outside air and this gap carries out upper and lower convection current, thereby the heat sending on radiating bottom plate is taken away, and the heat dispersion of radiator is improved greatly.

(4), accompanying drawing explanation:

Fig. 1 is the structural representation of LED bulb;

Fig. 2 is the structural representation of looking up of Fig. 1;

Fig. 3 is A-A sectional structure schematic diagram in Fig. 1;

Fig. 4 is the structural representation of radiator;

Fig. 5 is the structural representation of looking up of Fig. 4;

Fig. 6 is B-B sectional structure schematic diagram in Fig. 4;

Fig. 7 is the structural representation of lamp holder;

Fig. 8 is the structural representation of insulation tube connector.

(5), the specific embodiment:

Referring to Fig. 1～Fig. 8, in figure, LED bulb contains LED lamp body and lamp holder 1, LED lamp body contains LED light source plate 10, lampshade 2, radiator and power supply, the center radiating shell 6 that radiator contains drum-shaped, at protruding 38 radiating fins 12 longitudinally of the outer wall surrounding of center radiating shell 6, LED light source plate 10 is arranged on the outer bottom of center radiating shell 6, power supply is arranged in center radiating shell 6, lampshade 2 is inverted spheric lampshade, the top edge of inverted spheric lampshade is fixedly connected with the outside of 38 radiating fin 12 bottoms, the top of center radiating shell 6 is connected with lamp holder 1 by an insulation tube connector 3.

The top of center radiating shell 6 medial surfaces is provided with radiator internal thread 7, the medial surface of lamp holder 1 is provided with lamp holder internal thread, the upper and lower of insulation tube connector 3 lateral surfaces is respectively equipped with connection external screw thread 4 and lower connection external screw thread 5, center radiating shell 6 is connected with the bottom of insulation tube connector 3 with the lower coupling that is connected external screw thread 5 by radiator internal thread 7, lamp holder 1 by lamp holder internal thread with on be connected external screw thread 4 coupling be connected with the top of the tube connector 3 that insulate.

Lamp holder 1 is screw socket.

The top edge of inverted spheric lampshade is fixedly connected with the outside of 38 radiating fin 12 bottoms by a retainer plate 13, and the outside of retainer plate 13 and 38 radiating fin 12 bottoms is threaded connection.

In power supply, contain power-switching circuit, the input of power-switching circuit is connected with the electrode on lamp holder 1, the output of power-switching circuit is connected with the LED luminous tube 11 on LED light source plate 10, and the connecting line between the output of power-switching circuit and LED luminous tube 11 passes from the through hole 9 of center radiating shell bottom 8.

LED light source plate 10 is circular.

38 radiating fins 12 of the outer wall surrounding of center radiating shell 6 are uniformly distributed, and 38 radiating fin 12Yu center radiating shells 6 are integral type structure, and the outline of the outline of 38 radiating fins 12 and lampshade 2 is combined together to form an ellipsoid.

The material of insulation tube connector 3 is plastics, and the material of lampshade 2 is light transmissive material.

Insulation tube connector 3 plays the double effects of insulation isolation and heat isolation, has increased the security of LED bulb.

Claims

1. a LED bulb, contain LED lamp body and lamp holder, LED lamp body contains LED light source plate, lampshade, radiator and power supply, it is characterized in that: the center radiating shell that radiator contains drum-shaped, at the individual radiating fin longitudinally of the protruding N of outer wall surrounding of center radiating shell, LED light source plate is arranged on the outer bottom of center radiating shell, power supply is arranged in the radiating shell of center, lampshade is inverted spheric lampshade, the top edge of inverted spheric lampshade is fixedly connected with the outside of N radiating fin bottom, the top of center radiating shell is connected with lamp holder by an insulation tube connector, N is more than or equal to 2 natural number.

2. LED bulb according to claim 1, it is characterized in that: the top of described center radiating shell medial surface is provided with radiator internal thread, the medial surface of lamp holder is provided with lamp holder internal thread, the upper and lower of insulation tube connector lateral surface is respectively equipped with connection external screw thread and lower connection external screw thread, center radiating shell is connected externally threaded coupling and is connected with the bottom of insulation tube connector with lower by radiator internal thread, lamp holder by lamp holder internal thread with on be connected externally threaded coupling and be connected with the top of the tube connector that insulate.

3. LED bulb according to claim 2, is characterized in that: described lamp holder is screw socket.

4. LED bulb according to claim 1, is characterized in that: the top edge of described inverted spheric lampshade is fixedly connected with the outside of N radiating fin bottom by a retainer plate, and the outside of retainer plate and N radiating fin bottom is threaded connection.

5. LED bulb according to claim 1, it is characterized in that: in described power supply, contain power-switching circuit, the input of power-switching circuit is connected with the electrode on lamp holder, the output of power-switching circuit is connected with the LED luminous tube on LED light source plate, and the connecting line between the output of power-switching circuit and LED luminous tube passes from the through hole of center radiating shell bottom.

6. LED bulb according to claim 1, is characterized in that: described LED light source plate is circle, or is regular polygon.

7. LED bulb according to claim 1, it is characterized in that: N radiating fin of the outer wall surrounding of described center radiating shell is uniformly distributed, N radiating fin and center radiating shell are integral type structure, and the outline of N radiating fin and the outline of lampshade are combined together to form an ellipsoid.

8. LED bulb according to claim 1, is characterized in that: the material of described insulation tube connector is plastics, and the material of lampshade is light transmissive material.