CN201351896Y - Convective heat dissipating structure of LED courtyard light - Google Patents

Convective heat dissipating structure of LED courtyard light Download PDF

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Publication number
CN201351896Y
CN201351896Y CNU2008201842882U CN200820184288U CN201351896Y CN 201351896 Y CN201351896 Y CN 201351896Y CN U2008201842882 U CNU2008201842882 U CN U2008201842882U CN 200820184288 U CN200820184288 U CN 200820184288U CN 201351896 Y CN201351896 Y CN 201351896Y
Authority
CN
China
Prior art keywords
lamp body
heat loss
use heat
endoporus
led
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNU2008201842882U
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Chinese (zh)
Inventor
高京泉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHENZHEN GLITTER GENERAL ELECTRIC CO Ltd
Original Assignee
SHENZHEN GLITTER GENERAL ELECTRIC CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHENZHEN GLITTER GENERAL ELECTRIC CO Ltd filed Critical SHENZHEN GLITTER GENERAL ELECTRIC CO Ltd
Priority to CNU2008201842882U priority Critical patent/CN201351896Y/en
Application granted granted Critical
Publication of CN201351896Y publication Critical patent/CN201351896Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001Technical content checked by a classifier
    • H01L2924/0002Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Abstract

The utility model discloses a convective heat dissipating structure of an LED courtyard light, which comprises a metal light body and an LED chip. The light body is in a hollow tubular shape, the cross section of the tubular light body is in an N-polygon or arc shape, and N is greater than or equal to 3. The front end of the light body is provided with a front end cover connected with the light body, and the front end cover is provided with a plurality of vent holes communicated with the internal holes of the light body. The heat dissipating structure increases the heat dissipating area, the air can form convection inside and outside the light body so as to strengthen heat transmission, so the heat dissipating effect is more favorable.

Description

LED luminaire for garden use heat loss through convection structure
Technical field
The utility model relates to a kind of radiator structure of LED luminaire for garden use, is a kind of heat loss through convection structure specifically.
Background technology
The LED light fixture is widely used at present, for example is used for advertisement, car light, road lighting etc.
LED lamp led chip when luminous can produce heat, if dispel the heat bad can the reduction its service life, so the LED light fixture all has radiator structure.As depicted in figs. 1 and 2, it is a kind of radiator structure of LED light fixture, led chip 2 is attached to the mounting groove inner surface of aluminium alloy lamp body 3, and glass 1 is enclosed in the installation notch place of aluminium alloy lamp body 3, is provided with radiating fin 3a to increase area of dissipation at aluminium alloy lamp body 3 outer surfaces.The heat of led chip 2 generations is to loose in air by the good aluminium alloy lamp body 3 of thermal conductivity like this.This light fixture uses as outdoor street lamp, perhaps as the light fixture that in the bigger adverse circumstances of other open-air atmosphere, dust, uses, use airborne dust after a period of time, oil smoke, even birds droppings landing and attached to the lamp body surface, increase heat transfer resistance, caused heat dispersion to descend.
The utility model content
The purpose of this utility model is to provide a kind of LED luminaire for garden use heat loss through convection structure, and this structure also can form inside and outside lamp body the capable convection heat transfer' heat-transfer by convection of air influent stream, good heat dissipation effect except that by the heat conducting and radiating of lamp body outer surface.
The utility model adopts following technical scheme: a kind of LED luminaire for garden use heat loss through convection structure, comprise metal lamp body and led chip, described metal lamp body is the tubular of hollow, and the lamp body cross section of tubular is a N limit shape, N is more than or equal to 3, at described hollow lamp body front end a drive end bearing bracket is set and is connected with lamp body, drive end bearing bracket is provided with a plurality of passages and communicates with the endoporus of lamp body.
This LED light fixture heat loss through convection structure of the present utility model, because metal lamp body hollow, make heat except that can shedding by the lamp body outer surface, also can be to the air heat radiation of lamp body inside, increased area of dissipation, and during owing to lamp installation is that the high rear end of front end is low, therefore the air in the lamp body is heated to rise and discharges from front end, cold air can suck from the lower end and form convection current inside and outside lamp body, strengthened heat transfer, convection of heat and conduction are carried out simultaneously, make light fixture become a perfect radiator, the assurance led light source is worked at low temperatures, prolongs its service life.
Description of drawings
Fig. 1 is the structural representation of existing LED light fixture.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the schematic diagram of LED light fixture heat loss through convection structure of the present utility model.
Fig. 4 is the A-A cutaway view of Fig. 3.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described further, to help understanding content of the present utility model.
As shown in Figure 3 and Figure 4, it is LED light fixture heat loss through convection structural representation of the present utility model, be made up of aluminum alloy material metal lamp body 3 and led chip 2 and glass 1, led chip 2 is positioned at the mounting groove of lamp body 3 and is attached on the lamp body inner surface, and glass 1 is contained in the notch place of lamp body 3.Lamp body 3 is the tubular of hollow, and the lamp body cross section of tubular is N limit shape, and N adopts polygonal tubular structure more than or equal to 3, can improve lamp body structure intensity, as 3 limit shape lamp bodies, 6 limit shape lamp bodies etc., for example, in this enforcement, being 4 limit shapes, certainly, can also be circular arc.Its outer surface is provided with radiating fin 3a, and radiating fin 3a is installed on the sidewall on each limit of lamp body.Like this heat that produces of led chip except that the outer surface by lamp body 3 with and the air of fin 3a in environment conduct heat, normally the high rear end of front end is low because during lamp installation, therefore the air in the lamp body is heated to rise and discharges from front end, cold air can suck from the lower end and form convection current inside and outside lamp body, strengthened heat transfer, to take out of by the heat that the lamp body inner surface distributes, so radiating effect is better.
For attractive in appearance, particularly birds enter the endoporus of lamp body or nest at the lamp body endoporus and influence convection heat transfer' heat-transfer by convection in order to avoid being installed on outer family, a drive end bearing bracket 4 can also be set at the lamp body front end of hollow to be connected with lamp body 3, drive end bearing bracket 4 is provided with a plurality of passage 4a and communicates with the endoporus 3b of lamp body 3, passage 4a can be the strip of grating type, also can be circular hole, drive end bearing bracket also can adopt guard to form square hole, the perhaps hole of other shape.
Drive end bearing bracket 4 can adopt arcwall face, so that the surface is slick and sly attractive in appearance.
The rear end of lamp body 3 can be connected with a line box 5, though can directly on lamp body 3, process through hole, to guarantee entering of cold air, but the discharge for the ease of rainwater is consistent with the endoporus 3b of lamp body with the direction that makes pore, as shown in Figure 3, the one side dislocation that led chips 2 are installed with lamp body 3 in the zone that the lower surface of line box 5 is in lamp body 3 endoporus forms gap 35, makes to form air inlet and drainage gap in the lamp body lower end.So not only guaranteed the convection current of air, and rainwater can enter when rainy from lamp body 3 front ends, flow out from the rear end behind lamp body 3 endoporus of flowing through, the dust of lamp body 3 bore areas is washed away out, form the automatically cleaning effect, to reduce heat transfer resistance.Same online box 5 tops are positioned at the position that is connected with lamp body 3 also can be provided with the pore 5a that communicates with the lamp body endoporus, is used to into cold air.
As shown in Figure 4, along the trend of endoporus many reinforcement 3c can also be set in the inside of lamp body 3 endoporus 3b is connected lamp body one side of fin and the side that led chip is installed is arranged, except that playing booster action, also two walls are coupled together as heat bridge, to strengthen the speed that heat has a side of fin to transmit by the side direction that led chip is installed, also increased simultaneously and the convection current air of lamp body inside between the area of dissipation that conducts heat.
Lamp body 3 can also adopt other metal material with high thermal conductivity coefficient, and the employing aluminium alloy then except that the heat transfer coefficient height, also has advantage in light weight, that be difficult for corroding in environment.

Claims (7)

1, a kind of LED luminaire for garden use heat loss through convection structure, comprise metal lamp body and led chip, it is characterized in that: described metal lamp body is the tubular of hollow, and the lamp body cross section of tubular is N limit shape or circular arc, N is more than or equal to 3, at described hollow lamp body front end a drive end bearing bracket is set and is connected with lamp body, drive end bearing bracket is provided with a plurality of passages and communicates with the endoporus of lamp body.
2, LED luminaire for garden use heat loss through convection structure as claimed in claim 1 is characterized in that: described drive end bearing bracket adopts arcwall face.
3, LED luminaire for garden use heat loss through convection structure as claimed in claim 1, it is characterized in that: the rear end of described lamp body is connected with a line box, and the one side dislocation that led chip is installed with lamp body in the zone that the lower surface of described line box is in the lamp body endoporus forms the gap.
4, LED luminaire for garden use heat loss through convection structure as claimed in claim 3 is characterized in that: be positioned at the position that is connected with described lamp body and also be provided with the pore that communicates with the lamp body endoporus on described line box.
5, as described LED luminaire for garden use heat loss through convection structure one of in the claim 1 to 4, it is characterized in that: in described lamp body endoporus, many reinforcements also are set and are connected lamp body one side of fin and the side that led chip is installed are arranged along the trend of endoporus.
6, as described LED luminaire for garden use heat loss through convection structure one of in the claim 1 to 4, it is characterized in that: radiating fin is arranged at described metalized lamp external surface.
7, as described LED luminaire for garden use heat loss through convection structure one of in the claim 1 to 4, it is characterized in that: described lamp body is an aluminium alloy.
CNU2008201842882U 2008-12-31 2008-12-31 Convective heat dissipating structure of LED courtyard light Expired - Fee Related CN201351896Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201842882U CN201351896Y (en) 2008-12-31 2008-12-31 Convective heat dissipating structure of LED courtyard light

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008201842882U CN201351896Y (en) 2008-12-31 2008-12-31 Convective heat dissipating structure of LED courtyard light

Publications (1)

Publication Number Publication Date
CN201351896Y true CN201351896Y (en) 2009-11-25

Family

ID=41375284

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008201842882U Expired - Fee Related CN201351896Y (en) 2008-12-31 2008-12-31 Convective heat dissipating structure of LED courtyard light

Country Status (1)

Country Link
CN (1) CN201351896Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101718401B (en) * 2009-12-16 2012-09-05 海洋王照明科技股份有限公司 LED lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101718401B (en) * 2009-12-16 2012-09-05 海洋王照明科技股份有限公司 LED lamp

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20091125

Termination date: 20151231

EXPY Termination of patent right or utility model