CN101220945A

CN101220945A - Cooling type integrated lamp cap of LED light source

Info

Publication number: CN101220945A
Application number: CNA2008100574231A
Authority: CN
Inventors: 国晓军; 薛黎明
Original assignee: CHINASEASUN (BEIJING) ENERGY SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: CHINASEASUN (BEIJING) ENERGY SCIENCE AND TECHNOLOGY Co Ltd
Priority date: 2008-02-01
Filing date: 2008-02-01
Publication date: 2008-07-16

Abstract

The invention discloses an LED light source lower heat dissipation-type integrated lamp cap which includes a shell body which is provided with an LED luminous unit; the shell body is composed of an upper part and a lower part which are mutually fitted together; the LED luminous unit is arranged on the lower part of the shell body which is made from materials with good heat conducting performance and is manufactured according to the structural form of a radiator directly; heat dissipation fins is arranged on the lower part of the shell body which is in the periphery of the LED luminous unit; an LED luminous device in the LED luminous unit is directly arranged on a mounting surface which is processed on the lower part of the shell body and has good heat conducting performance with the shell body. The lamp cap of the invention can fully utilizes disturbance airflow which is generated when a car ploughs through so as to accelerate heat dissipation, thus improving heat dissipation efficiency and providing guarantee for ensuring that the LED luminous device can work in the suitable environmental temperature for a long time; therefore, the invention effectively protects the LED luminous device, and prolongs the time of the light attenuation of the LED luminous device and the service life.

Description

The led light source cooling type integrated lamp cap

Technical field

The present invention relates to a kind of lighting, especially a kind of led light source cooling type integrated lamp cap.

Background technology

In recent years; illuminating LED has had very big progress at cost, aspect of performance; compare with conventional light source; the LED lighting has advantages such as weak point long, start-up time in life-span, sound construction, energy-conservation, illuminator points of proximity light source, slim light fixture, light fixture material range of choice greatly, do not need to add reflector, low pressure, do not have ultra-violet radiation, use is safer in PE; and the production of led light source can realize mercuryless, and is significant for environmental protection and energy savings.

Along with succeeding in developing of the continuous breakthrough of LED technology and high-power, high-efficiency LED, the road lighting that is applied to the city becomes a reality, the domestic LED series street lamp product of having researched and developed success, and progressively substitute original road-light light-source based on the conventional high-tension sodium vapor lamp.Because the output of the light of LED has the directionality of height, by special lamp distribution design, the illuminating effect that the LED street lamp of high efficiency 60W is reached can be suitable with the 250W high-pressure mercury lamp, and the illuminating effect of the LED street lamp of 90W can be suitable with the high-pressure mercury lamp of 400W, and energy-saving effect is very obvious.

But, because LED is photoelectric device, have only 15%～25% electric energy to convert luminous energy in its course of work, remaining electric energy nearly all converts heat energy to, and the temperature of LED light fixture is raise.Especially in high-power LED lamp, caloric value is very big, often occurs high-power LED lamp in the use and decays owing to overheated.Therefore, operated by rotary motion has radiator on existing LED illuminating street lamp, and for the result of use and the apparent requirement that do not influence light fixture, this radiator operated by rotary motion is in the upper end of light fixture top cover.Owing to the direct projection of sunlight on daytime, light fixture tip temperature height, in initial a period of time that street lamp is opened after darkness, radiator self still keeps higher temperature, thereby radiating efficiency is very low, and is so long-term, the life-span that will reduce the LED illuminating street lamp.In addition, in the long-term use, will constantly accumulate dust on the radiator that the top is provided with, and these dusts will directly influence the radiating effect of radiator, can influence the life-span of LED illuminating street lamp like this, even can cause street lamp to damage owing to overheated.

Summary of the invention

Problem at prior art exists the object of the present invention is to provide the improved led light source cooling type integrated lamp cap of a kind of structure.

For achieving the above object, a kind of led light source cooling type integrated lamp cap of the present invention comprises housing, and housing is provided with the LED luminescence unit; Described housing is made of the two parts up and down that snap together mutually, described LED luminescence unit is arranged on the latter half housing, the latter half housing is made by the good material of heat conduction, and the version of directly being pressed radiator is made, the latter half housing around the LED luminescence unit is provided with radiating fin, LED luminescent device in the LED luminescence unit is directly installed on the installed surface that processes on the latter half housing, and and housing between heat conduction good.

Further, the first half of described housing is made by the material of heat conductivility difference, or at housing heat insulating mattress is set between two parts up and down.

Further, also scribble heat conductive silica gel between the installed surface on described LED luminescent device and the latter half housing.

Further, being hinged by bearing pin in the rear end that links to each other with lamp stand between two parts up and down of described housing is connected, interfix by screw at its front end, the housing rear end is provided with the installing hole that inserts for lamp stand, and the inner surface of the latter half housing is provided with the lamp stand mount pad.

Further, also be provided with the spiracle that the housing inner chamber is communicated with atmosphere on the lower surface of described the latter half housing.

Further, also be provided with in the described housing inner chamber to support and use linkage, this linkage comprises two connecting rods that at one end are hinged and connect, the free end of two connecting rods is hingedly mounted on respectively on two parts up and down of housing, unlatching along with housing, two connecting rod expansion and the support fixation of two housing sections up and down that unlatching is put in place, wherein at least one connecting rod is provided with the Ka Tai that makes two connecting rods keep deployed condition.

Further, also be provided with the constant-current source that drives the LED luminescent device work in the described LED luminescence unit in the described housing inner chamber.

Further, described the latter half housing is provided with the cavity structure of an indent, and described LED luminescence unit is arranged in this cavity structure, and described installed surface is the bottom surface of this cavity structure; The inwall of cavity structure is provided with reflection shield, and cover is buckled with a diffuser on its opening surface, and diffuser is fixed on the latter half housing by a ring-type pressing plate, and is provided with sealing ring between the stationary plane on this diffuser and the latter half housing.

The present invention adopts the frame mode of lamp holder bottom heat radiation; can make full use of the rough air that produces when vehicle crosses on the road surface and accelerate heat radiation; improved radiating efficiency; for making the LED luminescent device provide guarantee among can being operated in a suitable environment temperature for a long time; thereby protected the LED luminescent device effectively; prolong the light decay time of LED luminescent device, prolonged its service life.

Description of drawings

Fig. 1 is a front view of the present invention;

Fig. 2 is a upward view of the present invention;

Fig. 3 is a cutaway view of the present invention;

Fig. 4 is an A-A view among Fig. 3;

Fig. 5 is a B-B view among Fig. 3;

Fig. 6 is a C-C view among Fig. 3;

Fig. 7 is a D-D view among Fig. 3;

Fig. 8 is an E-E view among Fig. 3.

The specific embodiment

As shown in Figure 1, the housing 28 of led light source cooling type integrated lamp cap of the present invention is made up of the first half housing 1 and the latter half housing 2, and the surface of the latter half housing 2 is provided with radiating fin 21.To shown in Figure 8, the rear end of the first half housing 1 and the latter half housing 2 is hinged by hinge 17 as Fig. 2, makes upper and lower cover to open and close around hinge 17; Also be provided with on the middle part of the first half housing 1 and the latter half housing 2 and support with linkage 11, this linkage 11 comprises connecting rod 20 and connecting rod 22, the free end of connecting rod 20 and connecting rod 22 is hinged with two support plates 30 respectively, and this two support plate 30 is fixedly mounted on respectively on the first half housing 1 and the latter half housing 2 by screw 14, connecting rod 20 is provided with the card platform 201 that makes two connecting rods keep deployed condition with connecting rod 22 hinged ends, thereby make in installation or maintenance and inspection, 2 of the first half housing 1 and the latter half housings can keep a suitable opening angle and can not fall automatically, make installation or keep in repair convenient.The front end of the first half housing 1 and the latter half housing 2 also is provided with hold-down screw 16, tightens this hold-down screw 16, can the first half housing 1 and the latter half housing 2 is airtight fixing.Also be provided with spiracle 19 on the lower surface of the latter half housing 2, this spiracle 19 makes the inner chamber of housing 28 form circulation of air with extraneous, thereby increases radiating effect, reduces the air humidity of lamp holder inside and keeps excellent waterproofness.The afterbody of housing 28 also is provided with and is used for the installing hole 26 that lamp stand 9 inserts, spiral-lock U type clip 5 thereon after lamp stand 9 inserts, and this U type clip 5 is fixedly mounted on the latter half housing 2 on the mount pad 27 that is provided with, thereby lamp holder is fixedly mounted on the lamp stand 9 by adding cartridge screw 12.

The latter half housing 2 is provided with the cavity structure 24 of an indent, this cavity structure 24 is used to be provided with LED luminescence unit 29, be provided with the installed surface 23 that is used for directly installing LED luminescent device 10 in the bottom of cavity structure 24, the inwall of cavity structure 24 is provided with reflection shield 4, and cover is buckled with a diffuser 18 on its opening surface, the stationary plane that the latter half housing 2 links to each other with diffuser 18 is provided with draw-in groove 25, in this draw-in groove 25 sealing ring 6 is installed, also cover on the edge of diffuser 18 a ring-type pressing plate 3 is housed, pressing plate 3 is fixedlyed connected by screw 15 with the latter half housing 2, when pressing plate 3 compresses diffuser 18, diffuser 18 and sealing ring 6 are compressed, thereby LED luminescent device 10 is sealed in the cavity structure 24, reaches the effect of water proof and dust proof.Wherein reflection shield 4 adopts the PPS high-temperature resistance plastice, and handle through vacuum coating on its surface, has increased intensity of light reflection, improved the irradiant brightness of street lamp.

In the present embodiment, be provided with four LED luminescent devices 10 in the led light source cooling type integrated lamp cap, can increase and decrease the quantity of LED luminescent device in the practical application as the case may be.Every LED luminescent device 10 all disposes constant-current source 8, the electric energy that AC power or sun-generated electric power can be provided by constant-current source 8 is converted into stablizes suitable voltage and current, thereby make every LED luminescent device all can be independently, normal work, and then prolong service life of light fixture.Radiator portion among the present invention can be the independent radiator structure that is provided with, or be directly to adopt the good material of heat conduction, presses the making of heat spreader structures form, and with fin 21 structures of the latter half housing 2 one.And the first half housing 1 is made by the material of heat conductivility difference, or housing heat insulating mattress is set between two parts up and down, can prevent that like this reasons such as direct projection owing to sunlight from causing in the housing temperature too high.

During assembling, at first the back side and 23 of the installed surfaces of LED luminescent device 10 are evenly smeared heat conductive silica gel, and with screw with LED luminescent device 10 effective fastening being installed on the installed surface 23; Load onto reflection shield 4 then, sealing ring 6 is put into draw-in groove 25 and covered diffuser 18, at last pressing plate 3 usefulness screws 15 are fixedly mounted on the latter half housing 2; Wherein constant-current source 8 is installed on the latter half housing 2 by fixed head 7, and the lead-in wire of LED luminescent device 10 is installed on the corresponding binding post of constant-current source 8; Lamp stand 9 is injected in the shell of lamp base 28, and be fixed by U type clip 5; Then with upper and lower part housing parts closure, hinge 17 penetrated in the hinge and effectively fastening, with screw 16 upper and lower covers is tightened fixingly at last, make it into as a whole.

Claims

1. a led light source cooling type integrated lamp cap is characterized in that, comprises housing, and housing is provided with the LED luminescence unit; Described housing is made of the two parts up and down that snap together mutually, described LED luminescence unit is arranged on the latter half housing, the latter half housing is made by the good material of heat conduction, and the version of directly being pressed radiator is made, the latter half housing around the LED luminescence unit is provided with radiating fin, LED luminescent device in the LED luminescence unit is directly installed on the installed surface that processes on the latter half housing, and and housing between heat conduction good.

2. led light source cooling type integrated lamp cap as claimed in claim 1 is characterized in that the first half of described housing is made by the material of heat conductivility difference, or at housing heat insulating mattress is set between two parts up and down.

3. led light source cooling type integrated lamp cap as claimed in claim 1 is characterized in that, also scribbles heat conductive silica gel between the installed surface on described LED luminescent device and the latter half housing.

4. led light source cooling type integrated lamp cap as claimed in claim 1, it is characterized in that, being hinged by bearing pin in the rear end that links to each other with lamp stand between two parts up and down of described housing is connected, interfix by screw at its front end, the housing rear end is provided with the installing hole that inserts for lamp stand, and the inner surface of the latter half housing is provided with the lamp stand mount pad.

5. led light source cooling type integrated lamp cap as claimed in claim 1 is characterized in that, also is provided with the spiracle that the housing inner chamber is communicated with atmosphere on the lower surface of described the latter half housing.

6. led light source cooling type integrated lamp cap as claimed in claim 4, it is characterized in that, also be provided with in the described housing inner chamber to support and use linkage, this linkage comprises two connecting rods that at one end are hinged and connect, the free end of two connecting rods is hingedly mounted on respectively on two parts up and down of housing, unlatching along with housing, two connecting rod expansion and the support fixation of two housing sections up and down that unlatching is put in place, wherein at least one connecting rod is provided with the Ka Tai that makes two connecting rods keep deployed condition.

7. led light source cooling type integrated lamp cap as claimed in claim 1 is characterized in that, also is provided with the constant-current source that drives the LED luminescent device work in the described LED luminescence unit in the described housing inner chamber.

8. led light source cooling type integrated lamp cap as claimed in claim 1, it is characterized in that, described the latter half housing is provided with the cavity structure of an indent, and described LED luminescence unit is arranged in this cavity structure, and described installed surface is the bottom surface of this cavity structure; The inwall of cavity structure is provided with reflection shield, and cover is buckled with a diffuser on its opening surface, and diffuser is fixed on the latter half housing by a ring-type pressing plate, and is provided with sealing ring between the stationary plane on this diffuser and the latter half housing.