CN202040617U

CN202040617U - Light-emitting diode (LED) bulb

Info

Publication number: CN202040617U
Application number: CN2011201158762U
Authority: CN
Inventors: 王志建
Original assignee: Shenzhen Chang Long Sheng Optoelectronic Technology Co ltd
Current assignee: Shenzhen Chang Long Sheng Optoelectronic Technology Co ltd
Priority date: 2011-04-08
Filing date: 2011-04-08
Publication date: 2011-11-16
Anticipated expiration: 2021-04-08

Abstract

The utility model relates to the field of illumination and discloses an LED bulb, which comprises a lamp cap, an insulating base, a radiator, a luminous body and a power module for supplying power for the luminous body, wherein the interior of the bulb is provided with a smokestack channel penetrating through the radiator and the luminous body. Heat generated by the LED bulb disclosed by the utility model is discharged through the smokestack channel, thereby, the heat dissipation effect of the LED bulb is improved, and the service life of the LED bulb is prolonged.

Description

A kind of LED bulb lamp

Technical field

A kind of in one's power lighting of the utility model relates in particular to a kind of LED bulb lamp.

Background technology

Because long service life, the energy consumption of LED lamp are low, energy savings is remarkable, so the LED lamp has been widely used in the daily life as light source, as the LED bulb lamp.Yet along with the increase of LED quantity in the LED bulb lamp and the raising of power and brightness, the heat that is produced when making the work of LED lamp is unprecedented soaring.Therefore, the radiating effect that how to improve the LED bulb lamp becomes the significant problem in the LED bulb lamp technology.

In the prior art, the LED bulb lamp comprises: substrate, be arranged on LED lamp and power module and heat abstractor on the substrate.When the operating illumination of LED bulb lamp, the heat that the LED lamp produces reaches heat abstractor through substrate, is distributed by radiation by heat abstractor again.But, cause radiating effect not good, thereby influence the life-span of LED bulb lamp because the heat loss through radiation area of heat abstractor is limited.

The utility model content

The purpose of this utility model is to provide a kind of radiating effect better to reach long LED bulb lamp in service life.

The utility model a kind of LED bulb lamp of deducting a percentage is formed by lamp holder, insulating base, heat abstractor, illuminator and to the power module of illuminator power supply, wherein, is provided with the smokestack passage that runs through heat abstractor and illuminator in the bulb lamp.

Preferably, described heat abstractor is provided with first passage, and illuminator is provided with second channel, and first passage and second channel are communicated with the described smokestack passage of formation.

Preferably, described insulating base is provided with through hole, with described smokestack channel connection.

Preferably, the matrix of described heat abstractor is the tubular setting, and the periphery of matrix is provided with first radiating fin, and the axial length of this first radiating fin is less than matrix axial length.

Preferably, the axial length direction along matrix is provided with second radiating fin in the first passage of described heat abstractor.

Preferably, described illuminator comprises: be provided with substrate, the LED lamp of first through hole and be provided with the lampshade of second through hole; The neighboring of lampshade, the second through hole limit are sealed and matched with neighboring, the first through hole limit of substrate respectively and form described second channel, and described LED lamp is arranged on the substrate, and accommodate in the confined space of substrate and lampshade formation.

Preferably, described substrate is connected with described heat abstractor one end, and described power module places on the substrate of light emitting module, and is adjacent with first radiating fin.

Because be provided with a smokestack passage that runs through heat abstractor and illuminator in the bulb lamp, the heat that LED ball foam is produced is discharged by this smokestack passage by air stream, and the radiating effect of LED bulb lamp is provided, and has prolonged the service life of LED bulb lamp.

Description of drawings

Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, does not constitute to improper qualification of the present utility model, in the accompanying drawings:

Fig. 1 is the three-dimensional installation diagram of LED bulb lamp of the present utility model;

Fig. 2 is the sectional perspective installation diagram of LED bulb lamp of the present utility model;

Fig. 3 is the sectional perspective installation diagram of LED bulb lamp of the present utility model;

Fig. 4 is another sectional perspective installation diagram of LED bulb lamp of the present utility model;

Fig. 5 is the three-dimensional installation diagram of illuminator of the present utility model;

Fig. 6 is the three-dimensional installation diagram of substrate of the present utility model and LED lamp.

The specific embodiment

Describe the utility model in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the utility model in this illustrative examples of the present utility model and explanation, but not as to qualification of the present utility model.

LED bulb lamp of the present utility model, referring to Fig. 1 to Fig. 5, it comprises: lamp holder 1, insulating base 2, heat abstractor 3, illuminator 4 and the power module 5 of giving illuminator 4 power supplies, wherein, described lamp holder 1, insulating base 2, heat abstractor 3, illuminator 4 fixed order successively connect.Be provided with a smokestack passage 6 in the bulb lamp, this smokestack passage 6 runs through described heat abstractor 3 and illuminator 4, is the passage that the LED bulb lamp provides an internal gas flow to circulate, and utilizes air to flow and takes away the heat that the LED bulb lamp produces.

Referring to Fig. 1 and Fig. 2, described insulating base 2 is provided with a plurality of through holes 21, and each through hole 21 is communicated with smokestack passage 6, makes the thermal current of the interior smokestack passage 6 of LED bulb lamp shed with prestissimo.Described a plurality of through hole 21 is evenly distributed on the described insulating base 2 with fixing circular arc spacing, is that the heat radiation of LED bulb lamp is even.

Referring to Fig. 2, Fig. 5, described heat abstractor 3 is provided with first passage 31, is provided with second channel 46 with these first passage 31 correspondence positions on the described illuminator 4, and this second channel 46 is communicated with the described smokestack passage 6 of formation with first passage 31.

Referring to Fig. 3 to Fig. 5, the matrix 34 of described heat abstractor 3 is the tubular setting, and the peripheral, axial of this matrix 34 is provided with first radiating fin 32, and the axial length of this first radiating fin 32 less than matrix 34 axially.The end that these matrix 34 axial lengths go out first radiating fin, 32 axial lengths is fixedlyed connected with illuminator 4.This first radiating fin 32 is set to one or more, and evenly distributes with fixing circular arc spacing.

The axial length direction of the first passage 31 inwall upper edge matrixes 34 of described heat abstractor 3 is provided with second radiating fin 33.This second radiating fin 33 is set to one or more, distributes with fixing circular arc spacing, and is vertically installed on the inwall of first passage 31.

Described heat abstractor 3 is made by metal material, is made by metallic aluminium best.This heat abstractor 3 is mainly used in the heat heat radiation to power module 5 and illuminator 4 generations.

The total surface area size of the radiating fin in described heat abstractor 3 effects and this device is directly proportional.Heat abstractor 3 of the present utility model is respectively arranged with second radiating fin 33 and first radiating fin 32 in the inside and outside both sides of matrix 34, increased the total surface area of radiating fin, has therefore improved the radiating effect to the LED bulb lamp.

Referring to Fig. 4 to and Fig. 6, described illuminator 4 comprises: substrate 41 and be arranged on LED lamp 42 on this substrate 41, and the lampshade 43 of this LED lamp.Described LED lamp 42 can be set to one or more.Described substrate 41 is provided with first through hole 45, and described lampshade 43 centers are provided with second through hole 44, and this second through hole 44 is communicated with the described second channel 46 of formation with first through hole 45 in the described substrate 41.The neighboring radical length of lampshade 43 is greater than the radical length of substrate 41, be that substrate 41 accommodates in lampshade 43, and substrate 41 and lampshade 43 joining place sealing and fixing then form a confined space between substrate 41 and the lampshade 43, make LED lamp 42 avoid the pollution of external environment.Described substrate 41 is a metal substrate, and preferably this substrate 41 is an aluminum substrate.

The another side of described substrate 41 is provided with power module 5, and this substrate 41 matrix 34 of being provided with a heat abstractor 3 of power module 5 grows the fixing and heat conduction of an end of first radiating fin, 32 axial lengths and connects.Described power module 5 is arranged on matrix 34 peripheries that matrix 34 grows first radiating fin, 32 axial lengths, and adjacent with first radiating fin 32.

In addition, the general vertical installation of LED bulb lamp of the present utility model, its inner smokestack passage is the vertical direction setting, because meeting heat, air-flow has the characteristic that upwards flows, the heat that produces when therefore the LED bulb lamp is worked makes the air draught that forms in the described smokestack passage from bottom to top, accelerate the radiating rate of LED bulb lamp, improved the radiating effect of LED bulb lamp, thereby can prolong the service life of LED bulb lamp.

LED bulb lamp of the present utility model; a smokestack passage that runs through heat abstractor and illuminator is set in the LED bulb lamp; utilize circulation airflow that the LED bulb lamp is dispelled the heat; and the inside and outside both sides to the matrix of heat abstractor are provided with a plurality of radiating fins on this basis; to arrive the purpose that increases area of dissipation; thereby increased substantially the radiating effect of LED bulb lamp, protected the LED lamp effectively, prolonged the service life of LED bulb lamp.

More than technical scheme that the utility model embodiment is provided be described in detail, used specific case herein principle and the embodiment of the utility model embodiment are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, the part that on the specific embodiment and range of application, all can change, in sum, this description should not be construed as restriction of the present utility model.

Claims

1. LED bulb lamp is formed by lamp holder, insulating base, heat abstractor, illuminator and to the power module of illuminator power supply, it is characterized in that, is provided with the smokestack passage that runs through heat abstractor and illuminator in the bulb lamp.

2. according to the requirement 1 described LED bulb lamp that gets up, it is characterized in that described heat abstractor is provided with a passage, illuminator is provided with second channel, and first passage and second channel are communicated with the described smokestack passage of formation.

3. LED bulb lamp according to claim 2 is characterized in that described insulating base is provided with through hole, with described smokestack channel connection.

4. according to each described LED bulb lamp in the claim 1 to 3, it is characterized in that the matrix of described heat abstractor is the cartridge type setting, the periphery of matrix is provided with first radiating fin.

5. LED bulb lamp according to claim 4 is characterized in that, the axial length direction along matrix in the first passage of described heat abstractor is provided with second radiating fin.

6. LED bulb lamp according to claim 4 is characterized in that, described illuminator comprises: be provided with substrate, the LED lamp of first through hole and be provided with the lampshade of second through hole; The neighboring of lampshade, the second through hole limit respectively with substrate form described second channel for periphery, the first through hole limit are sealed and matched, described LED lamp is arranged on the substrate, and accommodates in the seal cavity of substrate and lampshade formation.

7. LED bulb lamp according to claim 6 is characterized in that, described substrate is connected with described heat abstractor one end, and described power module places illuminator basically, and is adjacent with first radiating fin.