CN202253525U

CN202253525U - Radiating device for light-emitting diode (LED) lamp

Info

Publication number: CN202253525U
Application number: CN2011203487393U
Authority: CN
Inventors: 陈建荣; 刘贤文; 许志聪; 许志键
Original assignee: Yen Sun Technology Corp
Current assignee: Yen Sun Technology Corp
Priority date: 2011-09-16
Filing date: 2011-09-16
Publication date: 2012-05-30
Anticipated expiration: 2021-09-16

Abstract

The utility model discloses a radiating device for light-emitting diode (LED) lamp. The LED lamp comprises a substrate and a plurality of luminous elements formed on the substrate; and the radiating device comprises a wind guide pipe which is arranged on the substrate and at least one fan wheel which is arranged in the wind guide pipe and is used for driving air in the wind guide pipe to flow. The heat generated by the luminous elements is concentrated by the wind guide pipe, and the air in the wind guide pipe is driven to flow by matching the fan wheel, so that the heat generated by the luminous elements is taken away in a centralized mode, and a radiating effect is achieved; meanwhile, by the wind guide pipe, the air in the wind guide pipe cannot be interfered by the outside, flows in a uniform and stable flow field and is well circulated, and the radiating efficiency is better improved, so that the luminous elements are difficult to damage because of high temperature.

Description

The heat abstractor of LED light fixture

Technical field

The utility model relates to a kind of heat abstractor, particularly relates to a kind of heat abstractor of LED light fixture.

Background technology

Because light emitting diode (LED) bulb has advantages such as low power consumption, long service life; Therefore replace conventional bulb gradually; But generally need to use many light emitting diode bulbs just enough illuminations can be provided; Yet high temperature, the high heat capacity that produces when light emitting diode bulb is luminous is prone to make the light emitting diode bulb heat exhaustion, so the LED bulb must be noted the problem of dispelling the heat in the use.

Consult Fig. 1; Announce " having the car light of heat radiation function concurrently " utility model patent case M396431 number for TaiWan, China, this case uses light-emitting diode component as light emitting source, and this light-emitting diode component comprises several light emitting diodes 11, several are separately positioned on the fin 12 on the said light emitting diode 11; And several are separately positioned on the fan 13 on the said fin 12; Improve the effect of heat radiation through said fin 12 and fan 13, but can cause the part of light-emitting diode component many like this, assembling is consuming time, the cost height; Simultaneously since said fan 13 be separately to said fin 12 blow air to reach the purpose of heat radiation; And the direction that blows is not quite similar, and the hot-air that therefore blows can interfere with each other in lampshade 14 and the poor effect that causes circulating, can't effectively discharge heat and dispels the heat; So it is too high and have influence on luminous efficacy that said light emitting diode 11 is still understood Yin Wendu, more maybe Yin Gaore and burn.

Summary of the invention

The purpose of the utility model is to provide a kind of heat abstractor that can improve the LED light fixture of radiating efficiency.

The heat abstractor of the utility model LED light fixture; This LED light fixture comprises a pedestal; And a plurality of illuminating parts that are formed on this pedestal; This heat abstractor comprises a guide duct that is arranged on this pedestal, and at least one is arranged in this guide duct and is used to drive the impeller that the air in this guide duct flows.

The purpose of the utility model and solve its technical problem and also can adopt following technical measures further to realize.

Preferably; The heat abstractor of aforesaid LED light fixture, wherein this guide duct comprises a housing that is connected with this pedestal, this housing is around defining a flow-guiding channel; And has a first end of this pedestal of vicinity; And the second end in contrast to this first end, and this impeller is to be located in this housing, and the first end of the air in this flow-guiding channel by this housing blown towards the direction of the second end.

Preferably; The heat abstractor of aforesaid LED light fixture, wherein this guide duct comprises a housing that is connected with this pedestal, this housing is around defining a flow-guiding channel; And has a first end of this pedestal of vicinity; And the second end in contrast to this first end, and this impeller is to be located in this housing, and the second end of the air in this flow-guiding channel by this housing blown towards the direction of first end.

Preferably, the heat abstractor of aforesaid LED light fixture, wherein this housing also has a connecting portion of being located between this first end and this second end and being extended to the direction convergent of the second end by first end.

Preferably, the heat abstractor of aforesaid LED light fixture, wherein this heat abstractor also comprises in several housings of being located at this guide duct and the radiating fin that is connected with this pedestal.

Preferably, the heat abstractor of aforesaid LED light fixture, wherein this impeller is to be selected from cross flow fan, axial flow fan, or blower fan.

Preferably, the heat abstractor of aforesaid LED light fixture, wherein this guide duct comprises that also several are formed at the conduction hole of the first end of this housing.

Preferably, the heat abstractor of aforesaid LED light fixture is applicable to the LED light fixture that several use simultaneously, and wherein the first end of this housing has several respectively in order to distinguish the partition wall at a distance from the pedestal of said LED light fixture.

The beneficial effect of the utility model is: through this guide duct the heat integration that said illuminating part produced is concentrated; And the air that this impeller of arranging in pairs or groups drives in this guide duct flows and the concentrated heat of taking away said illuminating part generation; To reach the effect of heat radiation, this guide duct makes its inner air can not receive extraneous interference simultaneously, so the flow field that air flows is average, stable and circulate; More improve the efficient of heat radiation, guarantee that therefore said illuminating part is difficult for Yin Gaowen and damages.

Description of drawings

Fig. 1 is a sketch map, explains that TaiWan, China announces the car light of function " have concurrently heat radiation " utility model patent case M396431 number;

Fig. 2 is a sketch map, and first preferred embodiment of the heat abstractor of the utility model LED light fixture is described;

Fig. 3 is a sketch map, and second preferred embodiment of the heat abstractor of the utility model LED light fixture is described;

Fig. 4 is a sketch map, and the 3rd preferred embodiment of the heat abstractor of the utility model LED light fixture is described;

Fig. 5 is a sketch map, and the 4th preferred embodiment of the heat abstractor of the utility model LED light fixture is described;

Fig. 6 is a sketch map, aid illustration Fig. 5.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is elaborated.

Before the utility model is described in detail, be noted that in following description similar elements is to represent with identical numbering.

Consult Fig. 2, first preferred embodiment for the heat abstractor 3 of the utility model LED light fixture comprises a guide duct 4, and the impeller 5 that is arranged in this guide duct 4.

This guide duct 4 comprises a housing 41; This housing 41 is around defining a flow-guiding channel 42, and has the first end 411 that is in communication with the outside, and a second end 412 in contrast to this first end 411; And this impeller 5 is to be located in this housing 41; In the present embodiment, this impeller 5 is that the first end 411 of the air in this flow-guiding channel 42 by this housing 41 blown towards the direction of the second end 412, and this impeller 5 is to be example with the axial flow fan; But shown in graphic, not exceeding, also can be like different impellers 5 such as cross flow fan or blower fans.

This first preferred embodiment is applicable to a LED light fixture, and this LED light fixture comprises a pedestal 21, a plurality of illuminating part 22 that is formed on this pedestal 21, and one be covered with this pedestal 21 and illuminating part 22 lampshade 23, this guide duct 4 is communicated with lampshade 23.And the first end 411 of the housing 41 of this guide duct 4 is to be located on this pedestal 21, when said illuminating part 22 sends light source, can produce a large amount of heat, so the temperature of this pedestal 21 can raise gradually; At this moment; Start this impeller 5 and on one's own initiative the first end 411 of the air in this flow-guiding channel 42 by this housing 41 blown towards the direction of the second end 412, so flow air can take away the heat that is accumulated on this pedestal 21, and isolate extraneous air-flow by this flow-guiding channel 42; When therefore this impeller 5 drives the air-flow in this flow-guiding channel 42; Air-flow can not receive external influence, so steady air current, flow field are average, makes air concentrate and stably derived; And can reduce the temperature of this pedestal 21 effectively; Because hot-air is directly by discharging in this guide duct 4, can avoid the moisture content of hot-air to condense in these lampshade 23 inner edges and make that lampshade 23 is smudgy, and said illuminating part 22 can be because of moisture short circuit, damage yet in addition.

Consult Fig. 3; Second preferred embodiment for the heat abstractor 3 of the utility model LED light fixture; Roughly the same with first preferred embodiment; Different places are that the heat abstractor 3 of this LED light fixture also comprises in several housings of being located at this guide duct 4 41 and the radiating fin 6 that is connected with this pedestal 21, in addition; This guide duct 4 also comprises the conduction hole 43 of several first ends that are formed at this housing 41 411, and this housing 41 also has the connecting portion 413 of being located at this

first end

411 and 412 of this second ends and being extended towards the second end 412 direction convergents by first end 411.

Second embodiment can reach with first preferred embodiment in the use has identical effect, in addition, uses said radiating fin 6 more quickly the heat of this pedestal 21 to be taken out of; And bigger contact area is arranged with the air in this flow-guiding channel 42; Further promote the efficient of heat radiation, make air when flowing out this housing 41, higher flow velocity arranged, can discharge hot-air more quickly and be this connecting portion 413 that convergent extends; And said conduction hole 43 can be introduced the air that temperature is lower in this lampshade 23 in this housing 41; Space temperature at said radiating fin 6 peripheries is reduced, so the exchange rate of heat can better can promote radiating effect.

Consult Fig. 4, the 3rd preferred embodiment for the heat abstractor 3 of the utility model LED light fixture is applicable to the LED light fixture that several use simultaneously; Roughly the same with first preferred embodiment, different places are that the first end 411 of this housing 41 has several partition walls that connects said pedestal 21 respectively 414; In order to distinguish pedestal 21 at a distance from said LED light fixture; And this impeller 5 is that the second end 412 of the air in this flow-guiding channel 42 by this housing blown towards the direction of first end 411, so, with this first preferred embodiment identical radiating effect is arranged; And said partition wall 414 can independently be installed said LED light fixture; If when having illuminating part 22 to damage, in maintenance, maintenance, need not change whole LED light fixtures, reduce maintenance cost.

Consult Fig. 5 and Fig. 6, for the 4th preferred embodiment of the heat abstractor 3 of the utility model LED light fixture, roughly the same with first preferred embodiment; Different places are, are to use two pack heat dissipation devices, 3,3 ', two pack heat dissipation devices 3,3 ' to comprise respectively to be arranged at guide duct 4 and guide duct 4 ' on the pedestal 21,21 ' in the present embodiment; Guide duct 4 is communicated with lampshade 23 respectively with guide duct 4 ', and the impeller 5 ' of the impeller of this heat abstractor 35 and this heat abstractor 3 ' rotate in the opposite direction, the impeller 5 that makes this heat abstractor 3 is that the air that drive in this guide duct 4 flow towards the direction away from this pedestal 21; And the impeller 5 ' of this heat abstractor 3 ' to be the air that drives in this guide duct 4 ' flow towards the direction of this pedestal 21 '; Let these lampshade 23 interior air can produce convection current, better radiating effect is arranged, in addition; Can also cooperate this pedestal 21 of different LED light fixtures, 21 ' shape; Or the quantity of said illuminating part 22, be optimized configuration, also save the cost on making.

In sum; The heat abstractor 3 of the utility model LED light fixture is on the LED light fixture, to be provided with this guide duct 4; And be provided with this impeller 5 in this guide duct 4, concentrate, and this impeller 5 of arranging in pairs or groups drives air in this guide duct 4 and concentrates and flow and dispel the heat through the heat integration that this guide duct 4 is produced said illuminating part 22; And the air in this guide duct 4 can not receive the interference of external environment; Flow field when therefore air flows is stable, can improve radiating effect, makes the said illuminating part 22 can Yin Gaowen and damage.

Claims

1. the heat abstractor of a LED light fixture, this LED light fixture comprises a pedestal, and a plurality of illuminating parts that are formed on this pedestal, it is characterized in that:

This heat abstractor comprises a guide duct that is arranged on this pedestal, reaches at least one and is arranged in this guide duct, and be used to drive the impeller that the air in this guide duct flows.

2. the heat abstractor of LED light fixture according to claim 1; It is characterized in that: this guide duct comprises a housing that is connected with this pedestal; This housing centers on and defines a flow-guiding channel, and has the first end of this pedestal of vicinity, and the second end in contrast to this first end; And this impeller is to be located in this housing, and the first end of the air in this flow-guiding channel by this housing blown towards the direction of the second end.

3. the heat abstractor of LED light fixture according to claim 1; It is characterized in that: this guide duct comprises a housing that is connected with this pedestal; This housing centers on and defines a flow-guiding channel, and has the first end of this pedestal of vicinity, and the second end in contrast to this first end; And this impeller is to be located in this housing, and the second end of the air in this flow-guiding channel by this housing blown towards the direction of first end.

4. according to the heat abstractor of claim 2 or 3 described LED light fixtures, it is characterized in that: this housing also has a connecting portion of being located between this first end and this second end and being extended to the direction convergent of the second end by first end.

5. according to the heat abstractor of claim 2 or 3 described LED light fixtures, it is characterized in that: this heat abstractor also comprises in several housings of being located at this guide duct and the radiating fin that is connected with this pedestal.

6. according to the heat abstractor of the described LED light fixture of arbitrary claim in the claim 1 to 3, it is characterized in that: this impeller is to be selected from cross flow fan, axial flow fan, or blower fan.

7. according to the heat abstractor of claim 2 or 3 described LED light fixtures, it is characterized in that: this guide duct comprises that also several are formed at the conduction hole of the first end of this housing.

8. the heat abstractor of LED light fixture according to claim 4 is characterized in that: this guide duct comprises that also several are formed at the conduction hole of the first end of this housing.

9. according to the heat abstractor of claim 2 or 3 described LED light fixtures, be applicable to the LED light fixture that several use simultaneously, it is characterized in that: the first end of this housing has several respectively in order to distinguish the partition wall at a distance from the pedestal of said LED light fixture.