CN204403875U

CN204403875U - A kind of be furnished with the fixing integrated module of LED of screw

Info

Publication number: CN204403875U
Application number: CN201520102176.8U
Authority: CN
Inventors: 代明生
Original assignee: DEYANG HENGDA LUMINAIRE MANUFACTURING Co Ltd
Current assignee: Deyang Hengda Luminaire Manufacturing Co ltd
Priority date: 2015-02-12
Filing date: 2015-02-12
Publication date: 2015-06-17
Anticipated expiration: 2025-02-12

Abstract

The utility model relates to LED integration packaging technical field, and particularly a kind of be furnished with the fixing integrated module of LED of screw.Is furnished with the integrated module of LED that screw is fixing, comprise LED die set light source, there is the radiator of smooth upper surface, described LED die set light source is made up of substrate and the plurality of LEDs crystal grain be attached on substrate, described substrate is followed successively by conductive metal layer from top to bottom, thermal insulation layer, albronze plate, plurality of LEDs crystal grain is fixed on conductive metal layer and also can be electrically connected with described conductive metal layer, substrate is affixed on except radiator upper surface except using adhesive, screw is also used to make substrate contact tightr with radiator upper surface further, be conducive to the heat trnasfer of substrate and radiator, make the integrated module heat radiation of LED evenly, improve service life.

Description

A kind of be furnished with the fixing integrated module of LED of screw

Technical field

The utility model relates to LED integration packaging technical field, and particularly a kind of be furnished with the fixing integrated module of LED of screw.

Background technology

Along with science and technology constantly progress, the development in city illumination field, especially the LED street lamp newly emerged in street lamp industry is with its environmental protection, energy-efficient feature progressively will replace the conventional street lamps such as the Halogen lamp LED that generally uses now and sodium vapor lamp, outside the environment for use of street lamp in actual environment is exposed to for a long time, generally all take totally enclosed structure, prevent the penetration of sleet etc., existing LED street lamp also adopts this to design, but the luminescence heat of high-power LED lamp is larger, LED street lamp can shorten the service life of whole LED street lamp greatly under being in the condition of high temperature for a long time, the LED lamp of high power work is when temperature is more than 74 DEG C after tested, it is 2 years that light output decays to 50% required time, when lamp temperatures is 63 DEG C, this time can extend to 6 years, therefore the service life of operating temperature to LED street lamp is very huge.At present for the LED die set light source of luminescence, mainly comprise substrate and be attached to the plurality of LEDs crystal grain on substrate, first the heat that LED grain luminescence produces passes to substrate, the structure of substrate and size limit its radiating effect, the heat radiation of LED die set light source can not be met, for the feature that high-power LED street lamp caloric value is large, LED die set light source was transformed afterwards, LED die set light source is fixedly bonded in the upper surface of radiator, by radiator, the heat on LED die set light source is derived, but because the bonding dynamics of region each on LED die set light source and spreader surface there are differences, cause the radiating effect of each LED grain also not identical, affect the whole service life of LED die set light source.

Utility model content

The purpose of this utility model is the above-mentioned deficiency overcoming prior art, provides a kind of and is furnished with the fixing integrated module of LED of screw, makes LED die set light source dispel the heat evenly, improves service life.

For achieving the above object, the utility model provides following technical scheme:

A kind of be furnished with the fixing integrated module of LED of screw, comprise LED die set light source, there is the radiator of smooth upper surface, described LED die set light source is made up of substrate and the plurality of LEDs crystal grain be attached on substrate, described substrate is followed successively by conductive metal layer, thermal insulation layer, albronze plate from top to bottom, plurality of LEDs crystal grain is fixed on conductive metal layer and also can be electrically connected with described conductive metal layer, described substrate is fitted in the upper surface of radiator by heat-conducting silicone grease, described substrate also by screw fastening in radiator upper surface.

Above-mentioned be furnished with in the fixing integrated module of LED of screw, and the contact with each other flatness in face of described substrate and radiator is 20 ~ 30um.

Above-mentioned be furnished with in the fixing integrated module of LED of screw, and the albronze plate in described substrate extrudes laminating forming by upper strata copper coin and lower floor's aluminium sheet, and described substrate is directly contacted with the upper surface of radiator by lower floor's aluminium sheet.

Above-mentioned be furnished with in the fixing integrated module of LED of screw, and heat-conducting silicone grease is filled with the contact gap between substrate and radiator body, makes substrate and radiator reach better heat trnasfer.

Above-mentioned be furnished with in the fixing integrated module of LED of screw, and described screw is countersunk head triangular screw, screw scribbles and loosens agent, and pine moves back because expanding with heat and contract with cold, shaking so can to prevent screw.

Above-mentioned be furnished with in the fixing integrated module of LED of screw, and the area of substrate bottom surface is less than the area of radiator upper surface.

Above-mentioned be furnished with in the fixing integrated module of LED of screw, and the area of substrate bottom surface is equivalent to 1/4 ~ 2/3 of radiator upper surface.While guarantee radiating effect, reduce substrate area, cost-saving.

compared with prior art, the beneficial effects of the utility model:the utility model is transformed for the LED die set light source of feature to lamp body inside that high-power LED street lamp caloric value is large, is derived by the heat on LED die set light source, carry out uniform heat radiation by radiator; The contact surface of substrate and radiator all has very high flatness, intermediate gap between the two can be ignored, substantially melt as a whole, in the scope that the junction temperature controllable poles of substrate and radiator is low, the heat exchange of substrate and radiator is accelerated, can fast the heat that LED grain produces be derived.Substrate is pasted on except radiator upper surface except using heat-conducting silicone grease, screw is also used to make substrate contact tightr with radiator upper surface further, to ensure upper surface all close contacts of every LEDs crystal grain and radiator, be conducive to the heat trnasfer of LED grain and radiator, make LED die set light source dispel the heat evenly, improve service life.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the sectional view of substrate in the utility model;

Fig. 3 is the top view of Fig. 1.

Mark in figure: 1-substrate, 2-LED crystal grain, 3-radiator, 4-screw, 5-plastic zone, 11-conductive metal layer, 12-thermal insulation layer, 13-albronze plate.

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, the utility model is further described.

In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that herein, described specific embodiment only in order to explain the utility model, and is not used in restriction the utility model.

embodiment 1

As shown in accompanying drawing 1, accompanying drawing 2, the present embodiment comprises LED die set light source, has the radiator 3 of smooth upper surface, described LED die set light source is made up of substrate 1 and the plurality of LEDs crystal grain 2 be attached on substrate, described substrate 1 is followed successively by conductive metal layer 11, thermal insulation layer 12, albronze plate 13 from top to bottom, plurality of LEDs crystal grain 2 is fixed on conductive metal layer 11 and also can be electrically connected with described conductive metal layer 11, described substrate 1 is fitted in the upper surface of radiator 3 by heat-conducting silicone grease, described substrate 1 is also anchored on radiator 3 upper surface by screw 4.Albronze plate in substrate 1 13 pairs of heats carry out first time uniform heat radiation, then are derived by the heat on substrate 1 by radiator 3, carry out the uniform heat radiation of second time; The contact with each other flatness in face of substrate 1 and radiator 3 is 20um, this makes substrate 1 all very smooth with the contact surface of radiator 3, both almost combine together, substrate 1 can be controlled in 1 DEG C with the junction temperature of radiator 3, substrate 1 is accelerated with the heat exchange of radiator 3, and the heat that can LED grain on substrate 2 be produced fast is derived.Substrate 1 is pasted on except radiator 3 upper surface except using heat-conducting silicone grease, screw 4 is also used to make substrate 1 contact tightr with radiator 3 upper surface further, as shown in Figure 3, screw 4 has special position distribution on substrate 1, concrete point of three rows are arranged on substrate, two rows respectively arrange two screws 4, three screws 4 are put in a middle arrangement, every screw 4 is all distributed with a plastic zone 5 below, this plastic zone 5 is that substrate 1 contacts region the most closely with radiator 3, the position distribution that screw 4 is special, make the position at every LEDs crystal grain 2 place be positioned at plastic zone 5 all as far as possible, to ensure upper surface all close contacts of every LEDs crystal grain 2 and radiator 3, be conducive to the heat trnasfer of LED grain 2 and radiator 3, LED die set light source is made to dispel the heat evenly, improve service life.

The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.

Claims

1. is furnished with the fixing integrated module of LED of screw for one kind, comprise LED die set light source, there is the radiator (3) of smooth upper surface, described LED die set light source is made up of substrate (1) and the plurality of LEDs crystal grain (2) be attached on substrate, described substrate (1) is followed successively by conductive metal layer (11) from top to bottom, thermal insulation layer (12), albronze plate (13), plurality of LEDs crystal grain (2) is fixed on conductive metal layer (11) and above also can be electrically connected with described conductive metal layer (11), it is characterized in that: described substrate (1) is fitted in the upper surface of radiator (3) by heat-conducting silicone grease, described substrate (1) is also anchored on radiator (3) upper surface by screw (4).

2. according to claim 1 be furnished with the fixing integrated module of LED of screw, it is characterized in that: the contact with each other flatness in face of described substrate (1) and radiator (3) is 20 ~ 30um.

3. according to claim 2 be furnished with the fixing integrated module of LED of screw, it is characterized in that: the albronze plate (13) in described substrate (1) extrudes laminating forming by upper strata copper coin and lower floor's aluminium sheet, and described substrate (1) is directly contacted by the upper surface of lower floor's aluminium sheet with radiator (3).

4. according to claim 1 and 2 be furnished with the fixing integrated module of LED of screw, it is characterized in that: described screw (4) is countersunk head triangular screw, screw (4) scribbles and loosens agent.

5. according to claim 1 be furnished with the fixing integrated module of LED of screw, it is characterized in that: the area of substrate (1) bottom surface is less than the area of radiator (3) upper surface.

6. according to claim 4 be furnished with the fixing integrated module of LED of screw, it is characterized in that: the area of substrate (1) bottom surface is equivalent to 1/4 ~ 2/3 of radiator (3) upper surface.