CN2748778Y

CN2748778Y - Heat radiation arrangement for light-emitting diode lighting apparatus

Info

Publication number: CN2748778Y
Application number: CNU2004201181773U
Authority: CN
Inventors: 黄孟正
Original assignee: Chaun Choung Technology Corp
Current assignee: Chaun Choung Technology Corp
Priority date: 2004-11-24
Filing date: 2004-11-24
Publication date: 2005-12-28
Anticipated expiration: 2014-11-24

Abstract

The utility model relates to a heat radiation structure for LED lamp fittings, which is used by matching with an LED lamp set of the lamp fittings. The heat radiation structure at least comprises a heat pipe, wherein, the cooling end of the heat pipe is arranged on a reflective hood of the lamp fitting and the heating end of the heat pipe contacts the bottom part of a light-emitting body. Due to the utilization of the structure, the heat quantity generated by the light-emitting body is conducted to the reflective hood by the heat pipe, and then the reflective hood performs outside heat radiation so as to realize effective heat radiation effect.

Description

The radiator structure of led lamp

Technical field

The utility model relates to a kind of radiator structure of LED light fixture, relates in particular to the Btu utilization heat pipe that a kind of LED of making lamp group produced and conducts on the light fixture, carries out the outside heat radiation, realizes the radiator structure of the LED light fixture of efficiently radiates heat effect.

Background technology

Because light-emitting diode has plurality of advantages such as volume is light and handy, power saving, low price than conventional bulb, so light-emitting diode is used widely on light fixture or flashlight.

Because the independent brightness that light-emitting diode produced so the user is welded on a plurality of light-emitting diodes on the circuit board usually, increases luminosity not as good as a conventional bulb, remedies the defective of its luminance shortage.

But,, have the too high problem of amount of localized heat to produce so follow electric current to increase because light-emitting diode improves its luminous efficiency to increase the magnitude of current.Though light-emitting diode can utilize the both ends of the surface heat radiation of circuit board, but because circuit board mostly is the single plate body that metal, PCB or ceramic material are made, therefore only its both ends of the surface can be for heat radiation, but and the electronic building brick such as electric capacity, resistance that has many release heat on the circuit board simultaneously, so the pyroconductivity of this circuit board is lower, making heat be not easy conduction fast scatters and disappears to extraneous, therefore, do not satisfy the needs of high-power LED heat radiating, the brightness of described high-power light-emitting diode and operand power can't be improved.

Content of the present utility model

Main purpose of the present utility model is to solve the defective that exists in the prior art.The heat that the utility model provides a kind of LED of allowing lamp group to be produced conducts on the light fixture, carries out the outside heat radiation, realizes the radiator structure of the LED light fixture of efficiently radiates heat effect.

In order to realize described purpose, the utility model provides a kind of radiator structure of LED light fixture, closes use with the LED lamp assembly in the light fixture, and described radiator structure includes a heat pipe at least, the colling end of described heat pipe is located on the reflector of light fixture, and heating end and luminous element bottom connection touch.

Advantage of the present utility model is: conduct on the light fixture by the heat that LED lamp group is produced, carry out the outside heat radiation, can realize the efficiently radiates heat effect.

Brief description of drawings

Fig. 1 is the perspective exploded view of the utility model first embodiment;

Fig. 2 is the three-dimensional appearance schematic diagram of the utility model first embodiment;

Fig. 3 is the schematic perspective view of the assembled state of the utility model first embodiment;

Fig. 4 is the elevational schematic view of the assembled state of the utility model first embodiment;

Fig. 5 is the generalized section of the assembled state of the utility model first embodiment;

Fig. 6 is the schematic diagram of the utility model second embodiment;

Fig. 7 is the schematic diagram of the utility model the 3rd embodiment.

In the accompanying drawing, the list of parts of each label representative is as follows:

1-LED lamp group 11-heat pipe

111-colling end 112-heating end

12-circuit board 121-lamp socket

122-luminous element 123-pin

124-perforation 2-reflector

21-dividing plate 22-perforation

3-heat-conducting plate 4-insulator

5-pedestal 6-heat-conductive assembly

Embodiment

Relevant technology contents of the present utility model and detailed description, existing conjunction with figs. is described as follows:

Fig. 1, Fig. 2 are that the solid of the utility model first embodiment is decomposed, the three-dimensional appearance schematic diagram.As shown in Figure 1 and Figure 2, the radiator structure of a kind of LED light fixture of the present utility model is that the Btu utilization heat pipe 11 that the LED lamp group 1 that will be arranged in the light fixture is produced conducts on the light fixture, carries out the outside heat radiation, reaches effective radiating effect.

LED lamp group 1 comprises a heat pipe 11, and heat pipe 11 comprises a colling end 111 and a heating end 112.Heating end 112 is provided with a circuit board 12, and circuit board 12 is provided with a plurality of lamp sockets 121.Circuit board 12 is connected by the scolding tin mode with the heating end 112 of heat pipe 11;

Lamp socket 121 is packaged with a luminous element 122 respectively, and luminous element 122 is light-emitting diode (LED).The pin 123 of each luminous element 122 is arranged in the perforation 124 of circuit board 12.Thus, the heat that luminous element 122 is produced can conduct on the colling end 111 of heat pipe 11, carries out radiating treatment.

Fig. 3 is the assembled state schematic perspective view of the utility model first embodiment.As shown in Figure 3, the utility model is in when assembling, and the colling end 111 of heat pipe 11 is located in the perforation 22 that the dividing plate 21 of light fixture reflector 2 offered.When heat pipe 11 was located on the reflector 2, its colling end 111 was moved toward a lateral deviation by the direction of lamp socket 121, and not corresponding with circuit board 12, thereby the light source that luminous element 122 is throwed can not stopped.

Fig. 3～Fig. 5 for the solid of the assembled state of the utility model first embodiment, look up and generalized section.As Fig. 3～shown in Figure 5, be assembled on the reflector 2 of light fixture when the utility model after, circuit board 12 connects a power supply (not shown), makes the light source of luminous element 122 shinny generations projections that illumination is provided.When luminous element 122 during in projection source, produce heat simultaneously, described heat can conduct on the heating end 112 of heat pipe 11, conducts to colling end 111 by heating end 112, is conducted on each aluminium matter dividing plate 21 of reflector 2 by colling end 111 again.Because reflector 2 exposes in indoor environment, so LED lamp group 1 heat that produces can utilize reflector 2 to carry out the outside to dispel the heat, thereby makes LED lamp group 1 effectively dispel the heat the useful life of guaranteeing luminous element 122.

Fig. 6 is the schematic diagram of second embodiment of the present utility model.As shown in Figure 6, present embodiment is arranged on luminous element 122 on the heat-conducting plate 3 that metal material makes, and in heat-conducting plate 3 bottoms one heat pipe 11 is set.For fear of heat-conducting plate 3 and heat pipe 11 122 liang of pins 123 of luminous element are short-circuited, on two pins 123, are arranged with insulator 4.After two pins 123 connect by lead, be subjected to power drives and light luminous element 122, the heat that this moment, luminous element 122 was produced conducts to after heat-conducting plate 3 absorbs and dispels the heat on the heat pipe 11, thus the useful life of guaranteeing luminous element 122.

Fig. 7 is the schematic diagram of the utility model the 3rd embodiment.As shown in Figure 7, present embodiment is arranged on luminous element 122 on the pedestal 5 that plastic material makes, and is embedded with the heat-conductive assembly 6 that metal material is made in pedestal 5, and heat-conductive assembly 6 touches with the bottom connection of luminous element 122.In addition, be provided with a heat pipe 11, make two pins, 123 short circuits of luminous element 122, on two pins 123, be arranged with insulator 4 for fear of heat pipe 11 in the another side correspondence of heat-conductive assembly 6; After two pins 123 connect by lead, be subjected to power drives and light luminous element 122, the heat that this moment, luminous element 122 was produced absorbs through heat-conductive assembly 6, and conducts to heat pipe 11 and dispel the heat, and guarantees the useful life of luminous element 122.

In sum, the radiator structure of the utility model LED light fixture can effectively improve the defective that exists in the known technology, the Btu utilization heat pipe that LED lamp group is produced conducts on the reflector, carry out outside heat radiation by reflector again, realize effective radiating effect, and then make and the utlity model has novelty, creativeness, practicality, the demand that more meets the user has really met the requirement of novel patent application, proposes patent application according to Patent Law.

The above only is a preferred embodiment of the present utility model, be not so promptly limit claim of the present utility model, the equivalent structure transformation that every utilization the utility model specification and accompanying drawing content are done, directly or indirectly be used in other relevant technical field, all in like manner be included in the claim of the present utility model.

Claims

1. the radiator structure of a LED light fixture closes use with the LED lamp assembly in the light fixture, it is characterized in that described radiator structure comprises:

One luminous element;

One heat pipe has a heating end and colling end, and described heating end and described luminous element bottom connection touch;

The heat that utilizes described structure that luminous element is produced conducts on the heat pipe, dispels the heat.

2. the radiator structure of LED light fixture according to claim 1 is characterized in that, described luminous element is a light-emitting diode.

3. the radiator structure of LED light fixture according to claim 1 is characterized in that, described luminous element is arranged on lamp socket inside, and its pin extends to the lamp socket outside, directly is connected with lead.

4. the radiator structure of LED light fixture according to claim 1 is characterized in that, a circuit board is set between described luminous element and heat pipe, and described circuit board is provided with perforation, and the pin of described luminous element is located in the described perforation, and is connected with described circuit board.

5. the radiator structure of LED light fixture according to claim 4 is characterized in that, described circuit board connects at least one luminous element, provides at least one luminous element required electric weight by described circuit board.

6. the radiator structure of LED light fixture according to claim 1 is characterized in that, the heat-conducting plate that a metal material is made is set between described luminous element and heat pipe, causes luminous element two pin short circuits for avoiding heat-conducting plate and heat pipe, is arranged with insulator on two pins.

7. the radiator structure of LED light fixture according to claim 1, it is characterized in that, the pedestal that one plastic material is made is set between described luminous element and heat pipe, being embedded with one in pedestal is connected bottom luminous element, and the heat-conductive assembly of making by metal material, for avoiding heat pipe to cause luminous element two pin short circuits, on two pins, be arranged with insulator.

8. the radiator structure of a LED light fixture closes use with the LED lamp assembly in the light fixture, it is characterized in that described radiator structure comprises:

One reflector;

One luminous element; And,

One heat pipe has a heating end and colling end, and described heating end and described luminous element bottom connection touch, and described colling end is arranged on the described reflector;

The Btu utilization heat pipe that utilizes described structure that luminous element is produced conducts on the reflector, carries out the outside heat radiation by reflector again.

9. the radiator structure of LED light fixture according to claim 8 is characterized in that, described reflector is provided with a plurality of dividing plates.

10. the radiator structure of LED light fixture according to claim 9 is characterized in that, described reflector and dividing plate are made by aluminum, offers perforation on the described dividing plate, and the colling end of described heat pipe wears wherein.