CN102003691A

CN102003691A - Light-emitting diode (LED) bulb

Info

Publication number: CN102003691A
Application number: CN201010127096XA
Authority: CN
Inventors: 段卫垠; 张朋朋; 张嘉栋; 熊林生; 汪本强; 李志平
Original assignee: Shenzhen Huntkey Electric Co Ltd
Current assignee: Shenzhen Huntkey Electric Co Ltd
Priority date: 2010-03-18
Filing date: 2010-03-18
Publication date: 2011-04-06
Anticipated expiration: 2030-03-18
Also published as: CN102003691B

Abstract

The invention discloses a light-emitting diode (LED) bulb comprising a lamp cap, an insulating seat, a radiating device, a luminous body and a power module which is used for supplying power for the luminous body, wherein the bulb is internally provided with a smoke stack channel penetrating through the radiating device and the luminous body. With respect to the bulb provided in the invention, as the smoke stack channel penetrating through the radiating device and the luminous body is arranged in the bulb, the heat generated by the LED bulb is discharged from the smoke stack channel through air flow, thereby improving the radiating efficiency and service life of the LED bulb.

Description

The LED bulb lamp

Technical field

The present invention relates to a kind of lighting, relate 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 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.

Summary of the invention

One of purpose of the present invention is to provide a LED bulb lamp, improves the radiating effect of LED bulb lamp, prolongs the service life of LED bulb lamp.

The present invention proposes a kind of LED bulb lamp, forms by lamp holder, insulating base, heat abstractor, illuminator and to the power module of illuminator power supply, wherein, is provided with a 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.

A kind of LED bulb lamp provided by the invention, owing to be provided with a smokestack passage that runs through heat abstractor and illuminator in the bulb lamp, the heat that the LED bulb lamp is produced is discharged by this smokestack passage by air stream, has improved the radiating effect of LED bulb lamp, has prolonged the service life of LED bulb lamp.

Description of drawings

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

Fig. 2 is the three-dimensional installation diagram of LED bulb lamp of the present invention;

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

Fig. 4 is a heat abstractor three-dimensional structure diagram of the present invention;

Fig. 5 is the upward view of heat abstractor of the present invention;

Fig. 6 is another sectional perspective installation diagram of LED bulb lamp of the present invention;

Fig. 7 is the three-dimensional installation diagram of illuminator of the present invention;

Fig. 8 is the three-dimensional installation diagram of substrate of the present invention and LED lamp;

Fig. 9 is a lampshade three-dimensional structure diagram of the present invention.

The realization of the object of the invention, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.

The specific embodiment

Bulb lamp of the present invention in order to improve the radiating effect of LED bulb lamp, is offered a smokestack passage in the LED bulb lamp, by the air-flow that flows into this smokestack passage the LED bulb lamp is dispelled the heat.

LED bulb lamp of the present invention, referring to Fig. 1, Fig. 3, Fig. 6 and Fig. 7, it comprises: lamp holder 10, insulating base 20, heat abstractor 30, illuminator 40 and the power module 50 of giving illuminator 40 power supplies; Wherein, described lamp holder 10, insulating base 20, heat abstractor 30 and illuminator 40 fixed order connection successively.Be provided with a smokestack passage in the bulb lamp, this smokestack passage runs through described heat abstractor 30 and illuminator 40, for the LED bulb lamp provides an internal gas flow circulation passage, utilizes air to flow and takes away the heat that the LED bulb lamp produces.

Further, referring to Fig. 2 and Fig. 7, described heat abstractor 30 is provided with first passage 31, is provided with second channel 46 with these first passage 31 correspondence positions on the described illuminator 40, and this second channel 46 is communicated with the described smokestack passage of formation with first passage 31.

Further, referring to Fig. 1 and Fig. 3, described insulating base 20 is provided with a plurality of through holes 21, and each through hole 21 and smokestack channel connection make the thermal current of the interior smokestack passage of LED bulb lamp shed with prestissimo.Described a plurality of through hole 21 is evenly distributed on the described insulating base 20 with fixing circular arc spacing, makes the heat radiation of LED bulb lamp evenly.

Further, referring to Fig. 3, Fig. 4 and Fig. 5, the matrix 34 of described heat abstractor 30 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 is less than the axial length of matrix 34.The end that these matrix 34 axial lengths go out first radiating fin, 32 axial lengths is fixedlyed connected with illuminator 40.This first radiating fin 32 is set to one or more, and evenly distributes with fixing circular arc spacing.

Further, referring to Fig. 4, Fig. 5, the axial length direction of the first passage 31 inwall upper edge matrixes 34 of described heat abstractor 30 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.

Further, described heat abstractor 30 is made by metal material, is made by metallic aluminium best.The heat that this heat abstractor 30 is mainly used in power module 50 and illuminator 40 generations dispels the heat.

The total surface area size of the radiating fin in the radiating effect of described heat abstractor 30 and the heat abstractor 30 is directly proportional.Heat abstractor 30 of the present invention 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.

Further, referring to Fig. 7, Fig. 8 and Fig. 9, described illuminator 40 comprises: substrate 41 and the LED lamp 42 that is arranged on this substrate 41, and the lampshade 43 of shroud LED lamp 42.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 described 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 the LED lamp avoid the pollution of external environment.Described substrate 41 is a metal substrate, and preferably this substrate 41 is an aluminum substrate.

Further, referring to Fig. 6, the another side of described substrate 41 is provided with power module 50, and this substrate 41 one side of being provided with power module 50 and the matrix 34 of heat abstractor 30 grow the fixing and heat conduction of an end of first radiating fin, 32 axial lengths and be connected.Described power module 50 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 invention, 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 invention; 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 reach the purpose that increases area of dissipation; thereby improved the radiating effect of LED bulb lamp significantly, protected the LED lamp effectively, prolonged the service life of LED bulb lamp.

Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion.And all these improvement and conversion all should belong to the protection domain of claims of the present invention.

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 a smokestack passage that runs through heat abstractor and illuminator in the bulb lamp.

2. LED bulb lamp according to claim 1 is characterized in that 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.

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 tubular setting, 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.

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 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.

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 on the substrate of illuminator, and is adjacent with first radiating fin.