CN204201552U

CN204201552U - LED bulb

Info

Publication number: CN204201552U
Application number: CN201420638505.6U
Authority: CN
Inventors: 陈琰表; 李江淮
Original assignee: Sichuan Lian Kai Environmental Protection Technology Co Ltd
Current assignee: Sichuan Kay Lighting Co. Ltd.
Priority date: 2014-10-30
Filing date: 2014-10-30
Publication date: 2015-03-11
Anticipated expiration: 2024-10-30

Abstract

A kind of LED bulb, comprise body and two or more light source board, described light source board is disposed on the end face of this body around the central shaft of this body, the lateral surface of each light source board is provided with LED light source, the lateral surface of each light source board and the end face of this body are arranged in obtuse angle, also comprise heat conduction ring, the bottom of this heat conduction ring and this body thermally coupled, through hole is provided with in the middle part of this heat conduction ring, described light source board is all arranged in the through hole of this heat conduction ring, the through-hole wall of this heat conduction ring and the lateral surface of described light source board thermally coupled.This LED bulb has the good advantage of heat radiation.

Description

LED bulb

Technical field

The utility model relates to lighting field, particularly a kind of LED bulb.

Background technology

In recent years, because the development of LED industry is rapid, LED lamp progressively replaces traditional lighting.New its illuminator of a product released is similar to incandescent lamp tungsten filament in the market, light efficiency is higher, lighting angle is close to incandescent lamp, but its production efficiency is low, yield rate is low, LED silk as light source in prior art forms by many usually, the heat produced in its luminescence process cannot distribute in time, greatly reduce the luminous efficiency of light source, such as, Shen Qing Publication day is on 04 03rd, 2013, application number be 201210564660.3 Chinese invention patent application disclose a kind of bulb of Sloped rotating Combined Led Light Up silk structure, comprise LED silk 2, combination hub 3, LED silk 2 is inserted in the inclined hole of combination hub 3 respectively, plug socket 3 is fixed in the metallic rod of glass stem, LED silk 2 is only plugged on socket 3 by the bulb of this Sloped rotating Combined Led Light Up silk structure, the heat of LED silk 2 cannot distribute in time, thus cause the accumulation of heat, greatly reduce the light efficiency of LED silk 2.

Utility model content

In view of this, be necessary to provide a kind of good LED bulb of dispelling the heat.

The technical solution adopted in the utility model is: a kind of LED bulb, comprise body and two or more light source board, described light source board is disposed on the end face of this body around the central shaft of this body, the lateral surface of each light source board is provided with LED light source, the lateral surface of each light source board and the end face of this body are arranged in obtuse angle, also comprise heat conduction ring, the bottom of this heat conduction ring and this body thermally coupled, through hole is provided with in the middle part of this heat conduction ring, described light source board is all arranged in the through hole of this heat conduction ring, the through-hole wall of this heat conduction ring and the lateral surface of described light source board thermally coupled.

Compared with prior art, the utility model LED bulb is provided with heat conduction ring, by the inwall of this heat conduction ring and the lateral surface of these light source boards thermally coupled, the heat that these light source boards are produced can be transmitted on this heat conduction ring in time, be dispersed in air through this body subsequently, thus the heat of these LED light source plates is distributed in time, make this LED bulb have the good advantage of heat radiation.

Accompanying drawing explanation

Fig. 1 is the three-dimensional exploded view of the utility model first embodiment LED bulb.

Fig. 2 is the profile after the assembling of LED bulb shown in Fig. 1.

Fig. 3 is front view when not bending bottom light source board in LED bulb shown in Fig. 1.

Fig. 4 is the right view of light source board shown in Fig. 3.

Fig. 5 is the top view of circuit board shown in Fig. 1.

Description of reference numerals:

10 light source board 20 body 30 heat conduction rings

40 circuit board 50 bulb housing 11 LED light sources

12 heat-conducting layer 13 metal electrode 31 through holes

41 jacks

Detailed description of the invention

Below by way of specific embodiment, the utility model is elaborated:

Fig. 1 is the three-dimensional exploded view of the utility model first embodiment LED bulb, this LED bulb comprises body 20 and three light source boards 10, these light source boards 10 are disposed on the end face of this body 20 around the central shaft of this body 20, the lateral surface of each light source board 10 is provided with LED light source 11 (as shown in Figure 3), and the lateral surface of each light source board 10 and the end face of this body 20 are arranged in obtuse angle.Certainly, the quantity of this light source board 10 can be two or more.

Please refer to Fig. 1, Fig. 2, also comprise heat conduction ring 30, bottom and this body 20 of this heat conduction ring 30 are thermally coupled, are provided with through hole 31 in the middle part of this heat conduction ring 30.These light source boards 10 are all arranged in the through hole 31 of this heat conduction ring 30.The bottom of these light source boards 10 is coated with heat-conducting layer 12, through hole 31 inwall of this heat conduction ring 30 and this heat-conducting layer 12 close contact, through hole 31 inwall of this heat conduction ring 30 and the lateral surface of these light source boards 10 thermally coupled.

Please refer to Fig. 1, Fig. 3 and Fig. 4, each light source board 10 is fixed with metal electrode 13 respectively, these metal electrodes 13 are made up of elastomeric material.Each light source board 10 is fixed with two metal electrodes 13, these two metal electrodes 13 are fixed on the medial surface of this light source board 10, and one end of these metal electrodes 13 is electrically connected with the both positive and negative polarity wiring of the LED light source 11 on this light source board 10 respectively.

Please refer to Fig. 1, Fig. 2 and Fig. 5, also comprise circuit board 40, this circuit board 40 is arranged at the end face of this body 20.On this circuit board 40, the metal electrode 13 of these light source boards 10 corresponding is respectively arranged with jack 41, and the bottom of these metal electrodes 13 to be stretched out outside these light source boards 10 and plugged in the jack 41 of this circuit board 40.The bottom of these metal electrodes 13 is connected in these jacks 41 by welding, is formed be electrically connected with this circuit board 40.The bottom of these metal electrodes 13 is bent the lateral surface of these light source boards 10 is abutted with the inwall of this heat conduction ring 30.

Please refer to Fig. 1, also comprise bulb housing 50, the bottom of this bulb housing 50 is fixed on the end face of this body 20, and this bulb housing 50 is located at the periphery of these light source boards 10.

In sum, the utility model LED bulb is provided with heat conduction ring 30, by the inwall of this heat conduction ring 30 and the lateral surface of these light source boards 10 thermally coupled, the heat that these light source boards 10 are produced can be transmitted on this heat conduction ring 30 in time, be dispersed in air through this body 20 subsequently, thus the heat of these LED light source plates 10 is distributed in time, make this LED bulb have the good advantage of heat radiation.In addition, by arranging metal electrode 13 at the back side of these light source boards 10, the even heat on the one hand these light source boards 10 being produced disperses and distributes in time, effectively reduces the operating temperature of these LED light sources 11; On the other hand, during assembling, these light source boards 10 are plugged on this circuit board 40 by the bending of these metal electrodes 13, and pass through close contact these light source boards 10 fastening further of this heat conduction ring 30, make the fixation of these light source boards 10 reliable.And, because the metal electrode 13 at these light source board 10 back sides is made up of elastomeric material, to elastic restoring force be produced after these metal electrodes 13 are bent, the bottom of these light source boards 10 is abutted with through hole 31 elasticity of this heat conduction ring 30, thus effectively give this heat conduction ring 30 by heat trnasfer.

The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacements, improvement etc., all should be included within scope that the utility model protects.

Claims

1. a LED bulb, comprise body, and two or more light source board, described light source board is disposed on the end face of this body around the central shaft of this body, the lateral surface of each light source board is provided with LED light source, the lateral surface of each light source board and the end face of this body are arranged in obtuse angle, it is characterized in that: also comprise heat conduction ring, the bottom of this heat conduction ring and this body thermally coupled, through hole is provided with in the middle part of this heat conduction ring, described light source board is all arranged in the through hole of this heat conduction ring, the through-hole wall of this heat conduction ring and the lateral surface of described light source board thermally coupled.

2. LED bulb according to claim 1, is characterized in that: the bottom of described light source board is coated with heat-conducting layer, the through-hole wall of this heat conduction ring and this heat-conducting layer close contact.

3. LED bulb according to claim 1, it is characterized in that: also comprise circuit board, this circuit board is arranged at the end face of this body, each light source board is fixed with metal electrode respectively, on this circuit board, corresponding described metal electrode is provided with jack, and the bottom of described metal electrode to be stretched out outside described light source board and plugged this circuit board formed with this circuit board and is electrically connected.

4. LED bulb according to claim 3, is characterized in that: described metal electrode is by being welded to connect in described jack.

5. LED bulb according to claim 3, is characterized in that: described metal electrode is made up of elastomeric material, and the bottom of described metal electrode is bent the lateral surface of described light source board is abutted with the inwall of this heat conduction ring.

6. LED bulb according to claim 3, it is characterized in that: each light source board is fixed with two metal electrodes, these two metal electrodes are fixed on the medial surface of this light source board, and described metal electrode is electrically connected with the both positive and negative polarity wiring of the LED light source on this light source board respectively.

7. LED bulb according to claim 3, is characterized in that: described metal electrode and this circuit board are by being welded and fixed.

8. LED bulb according to claim 1, is characterized in that: described light source board is transparent optical source plate.

9. LED bulb according to claim 1, is characterized in that: also comprise bulb housing, and the bottom of this bulb housing is fixed on the end face of this body, and this bulb housing is located at the periphery of described light source board.