CN203258608U

CN203258608U - High-power led drive module

Info

Publication number: CN203258608U
Application number: CN2013201790709U
Authority: CN
Inventors: 冯西芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-03-28
Filing date: 2013-03-28
Publication date: 2013-10-30
Anticipated expiration: 2023-03-28

Abstract

The utility model discloses a high-power LED drive module which organically mixes a high-power LED, driving and heat dissipation and is reasonable in structure and convenient to install and use. The high-power LED drive module comprises a substrate, an LED, a drive circuit board and a radiator. The LED is arranged on the substrate, the substrate is arranged on the lower portion of the radiator, the drive circuit board is arranged on the radiator, or the LED, a drive circuit and a component are arranged on the substrate. A heat conduction column and the radiator are arranged on the LED and are in sequential heat conduction connection, and an installation mechanism connected with an optical element is arranged on the module. The high-power LED drive module is mainly suitable for high-power LED point light source accessories in the fields of electric bicycles, motorcycle headlamps and other illuminating devices.

Description

The great power LED driver module

Technical field:

The utility model relates to a kind of led light source device, relates in particular to a kind of kind of high-power LED driver module device.

Background technology:

At present, having no excessive power LED automotive lamp on the market, and be used for the led light source of car light, must be integrally-built spotlight source device, just makes things convenient for installation and maintenance.High-power LED illuminating lamp will be considered emphatically its thermal diffusivity and the moistureproof and waterproof of drive circuit, and the heat that LED and drive circuit components and parts produce do not influence each other, and this is very important for life-span and electric property of improving high-power LED illuminating lamp.

Summary of the invention:

The purpose of this utility model provides a kind of great power LED driver module, and its module is the spot light of associativity.It not only for LED illumination aspect the car light or design application and the maintenance of other field provide convenience, and simple in structure, dependable performance, low cost of manufacture.

For solving the problems of the technologies described above, the utility model is achieved through the following technical solutions: a kind of great power LED driver module comprises substrate, LED, drive circuit board and radiator.Be provided with LED on the described substrate, be provided with substrate below the radiator, the above is provided with drive circuit board.Or be provided with LED, drive circuit and components and parts on the substrate, and being provided with heating column and radiator above the LED, order heat conduction connects, and is provided with the installing mechanism that is connected with optical element above the described module.

The utility model also has following technical measures: be provided with space or thermal insulation layer between described drive circuit board and the radiator, be provided with the space between thermal insulation layer and the radiator, drive circuit board is fixed on above the radiator.Be provided with thermistor on the described drive circuit board and radiator comes close to or in contact with, implement the control of LED junction temperature; Described drive circuit board is arranged in the seal casinghousing, or use the heat-conducting glue embedding in the housing, and the housing side is provided with heat sink and incoming line, and housing bottom is provided with the hole that can come close to or in contact with through thermistor and radiator; Described substrate is fastened on the lower end of vertically passing radiator strut, be provided with the step of wire guide and the displacement of upper limit pillar between one side of pillar and the radiator, drive circuit board or seal casinghousing are fastened on the upper end of pillar, or the upper end of the bottom of seal casinghousing and pillar connects as one structure; Described substrate is the double-side copper-applying plate, is provided with thermistor on the substrate and heating column comes close to or in contact with, and substrate and radiator are fixed on the two ends of pillar, and described heating column is that Heat Conduction Material is made; Edge part around heating column to substrate above the described substrate is provided with housing.Housing and pillar are structure as a whole, and the slit silica gel sealing between the heating column, are fixed by screw and silica gel sealing with the edge part of substrate.Oscillating circuit above the substrate partly is coated with three anti-lacquer protective layers, and hull outside is provided with the strong point or support ring; Described great power LED driver module, it does not comprise radiator; At optical element module is set, the pillar and being provided with that the outer bottom of described optical element is provided with fixed heat sink makes the LED luminous point place centre bore on the optical element focus.If LED is arranged on the outside of substrate, the support platform of supporting substrate also will be set, reinforce with silica gel between support platform and the substrate; Affiliated optical element outer bottom is provided with housing around substrate between the radiator, and the housing upper port is provided with guidewire port, and housing and radiator are tightly connected; Described installing mechanism is installing hole; Optical element, housing and pillar are made with the ABS+PC engineering plastic, optical element or with transparent PC plastic cement.The radiator stamping forming lower cost solution of 2-3mm aluminium sheet.

The beneficial effects of the utility model: the utility model integrates LED, driving, dispels the heat.Drive circuit is arranged in the seal casinghousing, and radiator can be exposed to the outside of lamp body, is conducive to the setting of LED junction temperature Based Intelligent Control, and radiator can adopt the lower cost solution design, and its compact conformation is simple, and the waterproof cooling performance is good, and cost is low.The driver module structure diversification adapts to the Application and Development of high-power LED illumination product under varying environment.

Description of drawings:

Fig. 1 is first kind great power LED driver module structure cutaway view;

Fig. 2 is Second Type great power LED driver module structure cutaway view;

Fig. 3 is the structure cutaway view that the assembly of great power LED driver module is arranged on the optical element outer bottom;

Among the figure: installing hole 1, housing 2, pillar 3, drive circuit board 4, aluminium alloy seal cover 5, thermal insulation layer 6, space 7, pillar upper end 8, radiator 9, pillar lower end 10, substrate 11, LED 12, the strong point 13, heating column 14, optical element 15, support platform 16

The specific embodiment:

Below in conjunction with accompanying drawing and the specific embodiment the utility model is described in further detail:

Among Fig. 1, be provided with the space between drive circuit board 4 and the radiator 9, or and radiator 9 between be provided with thermal insulation layer 6, be provided with space 7 between thermal insulation layer 6 and the radiator 9, substrate 11 is fixed on vertical lower end 10 and the upper end 8 of passing radiator 9 pillars 3 with drive circuit board 4 by screw, between the inboard other and radiator 9 of pillar 3 wire guide is set, drive circuit board 4 is connected with substrate 11 by wire guide by wire; Drive circuit board 4 is arranged in the seal casinghousing 2, and housing 2 bottoms are fixedly connected with pillar 3, or the upper end 8 of housing 2 bottoms and pillar 3 is structure as a whole, and the side of housing 2 is provided with incoming line.Or drive circuit board 4 usefulness heat-conducting glues are potted in the housing 2, and the port of housing 2 is provided with heat sink, and heat sink is aluminium alloy seal cover 5, and fully contacts the heat that the components of drive circuit that leaves produces with heat-conducting glue.Above-mentioned two driver module is connected and fixed by installing hole 1 and optical element by screw and gets final product in use.

Among Fig. 2, be provided with LED 12, drive circuit and components and parts above the substrate 11, be provided with heating column 14 and radiator 9 above the LED 12, the face thermal contact conductance connects, the face contact position is coated with thermal conductivity factor greater than 1.8 heat-conducting silicone grease, and substrate 11 and radiator 9 are fixed on lower end 10 and the upper end 8 of pillar 3.This module is fit to the LED illuminating lamp with housing; Edge part around heating column 14 to substrate 11 above the substrate 11 arranges housing 2.Housing 2 consists of the slit with around the heating column 14, and consists of thermal insulation layer 6 between the radiator 9, consists of space 7 between thermal insulation layer 6 and the radiator 9, and thermal insulation layer 6 and space 7 are the heat bakings that prevent between substrate 11 and the radiator 9, reduce hot stack.Housing 2 is protective substrate 11 and components and parts, and slit silica gel sealing between housing 2 and the heating column 14 is coated with silica gel with substrate 11 and is screwed.Circuit above the substrate 11 and components and parts are coated with three anti-lacquer protective layers, are strictly on guard against that rainwater is moist, guarantees to drive the safe and reliable of oscillating circuit.In the U-shaped groove that during use support ring 13 is embedded above the optical element outer bottom, it is more reliable to coat in case of necessity silica gel.Driver module does not comprise radiator 9 among Fig. 2, only has to mix in use suitable radiator and driver module together is fixed on the optical element.Driver module is connected and fixed by installing hole 1 and optical element by screw and gets final product.

Among Fig. 3, optical element 15 outer bottoms are provided with pillar 3, centre bore and support platform 16, and the outer bottom of the substrate 11 among Fig. 1 being put into optical element makes LED 12 insert centre bore, reinstalls radiator 9, radiator 9 is fixed on above the pillar 3, and drive circuit board 4 is fixed on above the radiator 9.The outer bottom of substrate 11 among Fig. 2 being put into optical element makes LED12 insert centre bore, the positive and negative electrode sheet invests the outside of centre bore, support platform 16 and substrate 11 are fixedly connected with by silica gel, pack into heating column 14 and radiator 9 of order again, and radiator 9 is fixed on the pillar 3.This two is the driven unit that module is set at optical element, does not have water proofing property, is applicable to the illuminating lamp with housing.Among Fig. 3, the outer bottom that is included in optical element 15 is provided with housing 2 around substrate 11 between the radiator 9, is coated with silica gel sealing between housing 2 and the radiator 9.Also can adopt the die cast aluminium alloy heat radiator, establish U-shaped groove on the radiator both sides, other the both sides way of silica gel sealing, the inboard of U-shaped groove is higher than the outside.Drive circuit board 4 will adopt the housing seal scheme among Fig. 1.This two is take optical element as carrier, can be used as again the stand-alone product of the high-power LED illuminating lamp of housing simultaneously, has good heat radiation water proofing property.Drive circuit board 4 is sealed in the housing 2 in Fig. 1, and what be exposed to the outside is 3 several volts low-voltage dc circuit, and this is less demanding to water proofing property.

Among the embodiment in sum, drive circuit board 4 be connected with LED 12 positive and negative electrodes be connected wire be connected with dc source can implement the illumination.Described heating column 14 is the heat conductor spares that connect between LED 12 and the radiator 9, for aluminum alloy materials is made.For reducing thermal resistance, increase cross section as far as possible, reduce height.Radiator 9 can be selected fine finishining or the stamping forming lower cost solution of aluminium sheet according to the class of light fixture.NTC thermistors of IC brilliance control pin access come close to or in contact with heating column 14 or with radiator 9 above drive circuit board 4 or the substrate 11, and thermistor temp rising resistance is reduced, IC control pin lower voltage, and LED 12 drive currents reduce, the temperature reduction.Otherwise, LED 12 drive currents are increased, temperature raises, and again starts to control, thereby reaches the purpose of controlling LED 12 junction temperatures.

Claims

1. great power LED driver module, comprise substrate, LED, drive circuit board and radiator, it is characterized in that, be provided with LED on the described substrate, be provided with substrate below the radiator, the above is provided with drive circuit board, or be provided with LED, drive circuit and components and parts on the substrate, be provided with heating column and radiator above the LED, order heat conduction connects, and is provided with the installing mechanism that is connected with optical element above the described module.

2. described great power LED driver module according to claim 1, it is characterized in that, be provided with space or thermal insulation layer between described drive circuit board and the radiator, be provided with the space between thermal insulation layer and the radiator, drive circuit board is fixed on above the radiator, is provided with thermistor on the described drive circuit board and radiator comes close to or in contact with.

3. described great power LED driver module according to claim 2 is characterized in that described drive circuit board is arranged in the seal casinghousing, or use the heat-conducting glue embedding in the housing, and the housing side is provided with heat sink, and housing bottom is provided with can be through the hole of thermistor.

4. according to claim 2 or 3 described great power LED driver modules, it is characterized in that, described substrate is fastened on the lower end of vertically passing radiator strut, and drive circuit board or seal casinghousing are fastened on the upper end of pillar, or the upper end of the bottom of seal casinghousing and pillar connects as one structure.

5. described great power LED driver module according to claim 1, it is characterized in that described substrate is the double-side copper-applying plate, be provided with thermistor on the substrate and heating column comes close to or in contact with, substrate and radiator are fixed on the two ends of pillar, and described heating column is that Heat Conduction Material is made.

6. according to claim 1 or 5 described great power LED driver modules, it is characterized in that the edge part around heating column to substrate above the described substrate arranges housing, housing and pillar are integrated, and the outer setting of housing has the strong point or support ring.

7. described great power LED driver module according to claim 6 is characterized in that, described great power LED driver module, and it does not comprise radiator.

8. according to claim 1 and 2 or 3 or 5 described great power LED driver modules, it is characterized in that, at optical element module is set, the outer bottom of described optical element is provided with the pillar that is connected and fixed radiator and arranges and makes the LED luminous point place centre bore on the optical element focus.

9. described great power LED driver module according to claim 8 is characterized in that, described optical element outer bottom is provided with housing around substrate between the radiator, and housing and radiator are tightly connected.

10. described great power LED driver module according to claim 1 is characterized in that described installing mechanism is installing hole.