CN201496912U

CN201496912U - LED lamp cooling device

Info

Publication number: CN201496912U
Application number: CN200920171292XU
Authority: CN
Inventors: 邹红钢
Original assignee: Xinliang Lighting Co Ltd
Current assignee: Xinliang Lighting Co Ltd
Priority date: 2009-08-14
Filing date: 2009-08-14
Publication date: 2010-06-02
Anticipated expiration: 2019-08-14

Abstract

The utility model relates to an LED lamp cooling device used for heat radiation of an LED lamp module comprising an LED lamp, a power supply unit and an LED chip. The LED lamp cooling device comprises a fan and a radiating body, wherein the radiating body is provided with radiating fins tightly attached to and fixed with the power supply unit and the LED chip, the fan and the radiating body are fixedly connected with each other, a drive circuit of the fan is connected with the power supply unit, the cooling device comprising a high-power LED can be conveniently supplied to quick response equipment so as to solve the problem of heat radiation of the high-power LED, and the radiating body and the matched fan take away heat of the LED chip, thereby providing good heat radiation and illumination with stable power supply for the high-power LED lamp and simultaneously leading the service life of the LED lamp and that of the fan to be longer.

Description

A kind of LED lamp cooling apparatus

Technical field

The utility model relates to the LED field of lamp illumination, refers to that especially a kind of being used for provides the cooling and the LED lamp cooling apparatus of heat sinking function for the LED lamp.

Background technology

At present, maturation along with LED lamp technology, the LED lamp has obtained popularizing fast at present, compare with incandescent lamp, the LED light fixture has operating voltage low, the usefulness height, and the advantage that environment is not existed mercury pollution, therefore be widely used and replace incandescent lamp as more energy-conservation illuminating lamp, from the principle, though the LED lamp need be luminous by generating heat to unlike incandescent lamp, but still can produce certain heat at work, particularly for high-powered LED lamp, caloric value at work is still bigger, these heats then can cause the temperature of LED lamp too high if can not in time shed, and the LED lamp is worked under higher temperature for a long time and not only can be caused the life-span to be reduced, also had influence on simultaneously the stable of LED lamp work, therefore the present employed shell of high-powered LED lamp all has good heat sinking function, and this also is to need most one of application problem of solution in the present LED lamp application technology, and a lot of enterprises are all striving to find the method for solution.

During at present common LED heat sink for lamp is used, modal is exactly to have adopted aluminium radiator, on heater members main on the LED lamp, aluminium radiator fin is set exactly, increase the area of heat radiation by aluminium radiator fin, thereby strengthen the effect of heat radiation, can not be excessive but be limited to gross weight, so the finite volume of aluminium radiator fin, be difficult to the radiating effect that reaches desirable.Though and some other heat abstractor effects are met,, cost are significantly increased, and do not have the function of self-protection because technology is too complicated or expensive.

U.S. Pat 20060198149 as promulgation on September 7th, 2006, having disclosed the LED lamp uses thermoelectric management to optimize thermoelectric module, thereby improve the efficient of lamp, this invention first aspect provides and has included a LED lamp, a thermoelectric module and the lighting that insulation covers, the surface of thermoelectric module goes out the thermal conductance of LED, radiator is connected with thermoelectric module, insulation covers has created the interior space with isolate from outer air, and the LED lamp can be any general type, but this invention is specifically designed in the equipment of the high well-illuminated LED of employing, as traffic lights, street lamp, urgency signal sign, airfield runway illumination etc.

For another example in the U.S. Pat 20060237730 of the U.S. Pat 20040155251 of promulgation on August 12nd, 2004 and promulgation on October 26th, 2006, the Pelletier cooling device that has electronic equipment has been described, this Pelletier cooling device has formed a unique thermoelectricity jointly with electronic equipment and has got in touch, thereby the electronic equipment that need be cooled is placed on and makes H/C cold one side close ties in but controlling between two thermoelectric sheets, the electric power that is used to produce thermoelectric-cooled in the Pelletier device is used to drive power equipment equally, finally like this reached a kind of thermal balance, because high drive current has been brought more heat by electronic equipment, the more cooling that these heats are produced in the fin is offset, in addition, unique arrangement space provides better heat radiation and has transferred heat on the fin, because Pelletier designs unique moulding, heat further enlarges heat transmission thereby the shape of Pelletier is amplified to big heat-dissipating space from little cooling cone space in deriving and be distributed in widely the zone from the source that produces heat.

The U.S. Pat 20060151801 of promulgation on July 13rd, 2006 has proposed to have the LED lamp of thermoelectric radiating device, System and method for adopts and constructs more sheet metals on the substrate at LED place, and above sheet metal, form the gallium nitride of a multilayer, thereby heat is dissipated by metal level.

On November 17th, 2005, the U.S. Pat 20050254013 of promulgation was released the projecting apparatus that has LED and heat abstractor, and the U.S. Pat 20050276053 of promulgation on December 15th, 2005, the U.S. Pat 7176502 of issue on February 13rd, 2007, the U.S. Pat 7095053 of the U.S. Pat issue on August 22nd, 7098483,2006 of issue on August 29th, 2006.These patents disclose the technology that the encapsulated LED lamp is used for hot operation, and this packaged LED that is used for hot operation comprises a heat-conducting substrate, one group of conductive plate, the ceramic layer of covering, the metallic plate that led module covers.LED by metallic plate thermal conductance to heat-conducting substrate, the electrode handle electric current is led on the electroplax.The low insulating barrier of resistance to heat can be when shedding heat, allows electricity and the effective sterilization in other position.Hot-fluid can get a promotion by the mode that the passage of heat passes to heat-conducting plate.The ceramic layer that covers can increase circuit and help the distribution of light.Novel encapsulated can be worked under 250 degrees centigrade temperature.

Above-mentioned technology or device still can not fully solve the heat dissipation problem of some high-powered LED lamps, and initiatively overtemperature protection can not be provided, and volume is difficult to dwindle.

The utility model content

Main purpose of the present utility model is to overcome above-mentioned shortcoming, provides a kind of and adopts air-cooled the combination with fin to dispel the heat so that the LED lamp cooling apparatus of great heat radiation effect to be provided, and this LED lamp cooling apparatus has the self-protection function simultaneously.

For realizing above-mentioned purpose, LED lamp cooling apparatus of the present utility model is used to the LED lamp module that heat radiation is provided, this LED lamp module comprises LED lamp, power subsystem and led chip, this LED lamp cooling apparatus comprises fan and heat radiator body, this heat radiator body has the tight pressing of fin and power subsystem and led chip and fixes, this fan and heat radiator body are mutually permanently connected, and the drive circuit of this fan is connected with power subsystem.

Above-mentioned LED lamp cooling apparatus also includes heat radiation rack, this heat radiation rack comprises that also loam cake and some ends are provided with the double-screw bolt that is connected of thread head, be respectively equipped with screwed hole on loam cake and the LED lamp socket, heat radiator body is provided with some trepannings, power subsystem and heat radiator body pressing also interfix, the screwed hole of this loam cake respectively with these some flange buckles that are connected double-screw bolt one end, these some connection double-screw bolt other ends are fixedlyed connected with the screwed hole of LED lamp socket after passing some trepannings on the heat radiator body, and this heat radiator body pressing led chip after fixing, usually, this heat radiation rack bottom also includes a butterfly shape bracing frame.

This LED lamp cooling apparatus also comprises the temperature switch with temperature detecting head, this temperature detecting head is connected with the heat radiator body thermal conductivity, temperature switch is series in the input circuit of power supply, when the temperature of radiator when making the impaired temperature of led chip, the device that is electrically connected can be turned off power supply by starting switch, thereby avoids led chip overheated.

Above-mentioned fan is long-life fan.

Above-mentioned fan is and the identical fan of the used radiator fan of desktop personal computer central processing unit.

Also be arranged with spring on above-mentioned some connection double-screw bolts, this spring suppresses heat radiator body makes heat radiator body suppress led chip, thereby consumes expanding with heat and contract with cold of system.

The marginal position place of this heat radiator body offers the radiating fin of the separate slot with certain intervals, and this aluminium flake is above led chip, and the heat that LED is produced is taken away and aluminium flake is passed through in the cool breeze that allows fan produce.

Above-mentioned power module comprises fan supply module and LED lamp supply module two parts, this fan supply module is connected with fan, this fan supply module comprises that constant voltage and constant current part provide stable operating current for fan, this LED lamp supply module is connected with the LED lamp, and this LED lamp supply module has fixed voltage and fixed current stablizing with maintenance LED lamp work.

Beneficial effect: LED lamp cooling apparatus of the present utility model is by using above-mentioned design, a kind of initiatively great power LED cooling device of defencive function that has is provided, in order to solve the heat dissipation problem of great power LED, heat radiator body adopts easy Heat Conduction Material such as copper or aluminium to cooperate fan to take away a large amount of heat usually; Thereby keep high-powered LED lamp to be in lower operating temperature; guarantee stable power; and this LED lamp is normally worked and life-saving; simultaneously automatic safety device can break down or operating temperature is cut off the electricity supply when too high automatically at fan; thereby provide cooling and overtemperature protection effectively to this LED lamp; at the LED lamp cooling apparatus owing to adopted active heat removal, the therefore volume of this LED heat sink for lamp greatly.

For making things convenient for the auditor can further understand the utility model is technology, means and the effect that the utility model purpose that reaches predetermined is taked, see also following about detailed description of the present utility model and accompanying drawing, only for reference and the explanation usefulness of the following drawings is not to be used for the utility model is limited.

Description of drawings

Fig. 1, the schematic perspective view that uses for the utility model;

Fig. 2, the front view of installing and using for the utility model;

Fig. 3, be the schematic diagram that heat radiation rack of the present utility model separates;

Fig. 4, be the schematic cross-section of the utility model heat radiator body;

Fig. 5, be the vertical view of the utility model fan;

Fig. 6, be the schematic diagram that the utility model heat abstractor is connected with first kind of LED lampshade;

Fig. 7, be the schematic diagram that the utility model heat abstractor is connected with second kind of LED lampshade.

The specific embodiment

Please refer to Fig. 1 below, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and shown in Figure 7, LED lamp cooling apparatus 10 of the present utility model is used to the LED lamp module that heat radiation is provided, this LED lamp module comprises the LED lamp, power subsystem 51 and led chip 80, this LED lamp cooling apparatus 10 comprises fan 40, heat radiator body 30, this heat radiator body 30 has fin and power subsystem 51 and led chip 80 tight pressings and fixes, this fan 40 has some flabellums 41, this fan 40 is mutually permanently connected with heat radiator body 30, the drive circuit of this fan 40 is connected with power subsystem 51, when the LED lamp is worked, fan 40 is told rotation, flabellum 41 produces a large amount of air flow stream and crosses the surface of heat radiator body 30 and take away heat on the heat radiator body 30, thereby can make heat radiator body 30 keep lower temperature, for the LED lamp provides good thermolysis.

Above-mentioned LED lamp cooling apparatus 10 also includes heat radiation rack; what this heat radiation rack comprised that loam cake 51 and some ends are provided with thread head is connected double-screw bolt 60; be respectively equipped with screwed hole on loam cake 51 and the LED lamp socket; heat radiator body 30 is provided with some trepannings 62; power subsystem 51 and heat radiator body 30 pressings also interfix; the screwed hole of this loam cake 51 respectively with these some flange 63 buckles that are connected double-screw bolt 60 1 ends; fixedly connected with the screwed hole at

LED lamp socket

100A or 100B top in some trepannings 62 backs that these some connection double-screw bolt 60 other ends pass on the heat radiator body 30; and these heat radiator body 30 pressing led chips 80 after fixing; LED lamp for ease of the LED lamp cooling apparatus 10 that this is provided with this utility model hangs; these loam cake 51 upsides also are provided with the hanging ring 90 that is used to hang; easier for installation for making, this heat radiation rack bottom also includes the bracing frame 20 of a butterfly shape usually.

For preventing to cause the radiating effect variation because of radiator fan 40 damages; and then burn this led chip 80 or power subsystem 51; this LED cooling device also includes an overheated automatic safety device; this overheated automatic safety device is generally the temperature switch with temperature detecting head 70; this temperature switch is series in the input circuit of power supply; the temperature detecting head 70 of this temperature switch is connected to monitor the temperature of radiator and chip in real time with heat radiator body 30 thermal conductivity; and this temp probe 70 is connected with the control module of temperature switch by lead 71; when the temperature of radiator when making the impaired temperature of led chip 80; temperature switch auto power off circuit; thereby avoid led chip 80 overheated and be damaged; simultaneously because LED heat abstractor of the present utility model has adopted the mode of fan 40 heat radiations initiatively; the heat of LED wick sheet and power supply generation in time can be taken away; therefore radiating efficiency greatly improves; our experiments show that; this LED cooling device can be any type of great power LED, comprises from 1W 3W; 5W; 10W, 15W, 20W; 25W; 30W, 35W, 40W; 45W; 50W, 60W, 70W; 80W; 90W, 100W, the above LED lamp of 150W and 150W provides good heat radiation; LED cooling device of the present utility model can reduce the size of final products greatly; LED lamp with 100W adopts this LED cooling device, and being shaped as columnar structured product is example, and its diameter is 128mm; height is 140mm, reduces about half with respect to the existing product volume.

Further, the fan 40 of the utility model LED cooling device is long-life fan 40, and generally, this fan 40 adopts the fan identical with the used radiator fan of desktop personal computer central processing unit 40, is convenient to maintenance and replacing to strengthen versatility.

Also be arranged with spring 61 on above-mentioned some connection double-screw bolts 60, this spring 61 suppresses heat radiator body 30 makes heat radiator body 30 suppress led chip 80, this is because the high temperature that the LED lamp produces when work can cause the parts generation to be expanded with heat and contract with cold, in order to eliminate the pressure that between contact component, produces that expands with heat and contract with cold pulling force is arranged, LED heat sink for lamp of the present utility model has adopted four springs 61 to be installed in to connect on the double-screw bolt 60, remedying the gap between each parts, thereby consumes expanding with heat and contract with cold of system.

The marginal position place of this heat radiator body 30 offers the radiating fin 31 of the separate slot with certain intervals, and this aluminium flake is above led chip 80, and the heat that LED is produced is taken away and aluminium flake is passed through in the cool breeze that allows fan 40 produce.

Further, above-mentioned power module comprises fan 40 supply modules and LED lamp supply module two parts, these fan 40 supply modules are connected with fan 40, these fan 40 supply modules comprise that constant voltage and constant current part provide stable operating current for fan 40, this LED lamp supply module is connected with the LED lamp, and this LED lamp supply module has constant voltage and constant electric current stablizing with maintenance LED lamp work.

Further, the description in the above-mentioned some embodiment of the utility model though be the mode that adopts illustration, but not only limits to invention, and a lot of place of revising made mark, but does not break away from the marrow of invention.

In addition because the high temperature that the LED lamp produces when work can cause the parts generation to be expanded with heat and contract with cold, in order to eliminate the pressure that between contact component, produces that expands with heat and contract with cold pulling force is arranged, LED heat sink for lamp of the present utility model has adopted four springs 61 to be installed on the connection double-screw bolt 60, to remedy the gap between each parts; To cause the radiating effect variation in order preventing because of radiator fan 40 damages simultaneously, and then to burn this led chip 80 or power subsystem 51, because the rotation of fan 40 makes this cover cooling system also can take away the heat that power supply produces, LED lamp cooling apparatus 10 of the present utility model can be any type of great power LED, comprises from 1W 3W, 5W, 10W, 15W, 20W, 25W, 30W, 35W, 40W, 45W, 50W, 60W, 70W, 80W, 90W, 100W, the LED lamp that 150W and 150W are above good cooling and heat radiation be provided.

This LED lamp cooling apparatus 10 is owing to have good thermal diffusivity, that therefore the volume of this LED heat abstractor can be done is smaller, significantly reduce the volume of cooling devices such as this LED, with power is the LED lamp of 100W, use the volume and weight of the LED lamp of LED heat sink for lamp of the present utility model can reduce more than one times usually, thereby small volume and less weight more more helps installing and using, and can prolong the service life of LED lamp simultaneously greatly.

Claims

1. LED lamp cooling apparatus, be used to the LED lamp module that heat radiation is provided, this LED lamp module comprises LED lamp, power subsystem and led chip, it is characterized in that: this LED lamp cooling apparatus comprises fan and heat radiator body, this heat radiator body has the tight pressing of fin and power subsystem and led chip and fixes, this fan and heat radiator body are mutually permanently connected, and the drive circuit of this fan is connected with power subsystem.

2. LED lamp cooling apparatus according to claim 1, it is characterized in that: described LED lamp cooling apparatus also includes heat radiation rack, this heat radiation rack comprises that also loam cake and some ends are provided with the double-screw bolt that is connected of thread head, be respectively equipped with screwed hole on loam cake and the LED lamp socket, heat radiator body is provided with some trepannings, power subsystem and heat radiator body pressing also interfix, the screwed hole of this loam cake respectively with these some flange buckles that are connected double-screw bolt one end, these some connection double-screw bolt other ends are fixedlyed connected with the screwed hole of LED lamp socket after passing some trepannings on the heat radiator body, and this heat radiator body pressing led chip after fixing.

3. LED lamp cooling apparatus according to claim 1 is characterized in that: this LED lamp cooling apparatus also comprises the temperature switch with temperature detecting head, and this temperature detecting head is connected with the heat radiator body thermal conductivity, and temperature switch is series in the input circuit of power supply.

4. LED lamp cooling apparatus according to claim 1 is characterized in that: described fan is long-life fan.

5. LED lamp cooling apparatus according to claim 1 is characterized in that: described fan is and the identical fan of the used radiator fan of desktop personal computer central processing unit.

6. LED lamp cooling apparatus according to claim 2 is characterized in that: also be arranged with spring on described some connection double-screw bolts, this spring suppresses heat radiator body makes heat radiator body suppress led chip.

7. LED lamp cooling apparatus according to claim 1 is characterized in that: the marginal position place of this heat radiator body offers the radiating fin of the separate slot with certain intervals.

8. LED lamp cooling apparatus according to claim 1 is characterized in that: described power module comprises fan supply module and LED lamp supply module two parts, and this fan supply module is connected with fan, and this LED lamp supply module is connected with the LED lamp.