CN203240500U

CN203240500U - LED lamp light distribution structure

Info

Publication number: CN203240500U
Application number: CN2012207244709U
Authority: CN
Inventors: 李镭
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-12-15
Filing date: 2012-12-15
Publication date: 2013-10-16
Anticipated expiration: 2022-12-15

Abstract

The utility model discloses an LED lamp light distribution structure which comprises a convex lens, an LED integrated optical source packaged by a ceramic support and a heat sink, and further comprises a reflector. The reflector is provided with a funnel-shaped reflective panel. The convex lens is installed at the front end of the reflector through a fixing ring, the ceramic support of the LED integrated optical source is clamped at the rear end of the reflector through a heat conduction supporting pad, and the reflector is further fixedly connected with the head sink and enables the heat conduction supporting pad to be tightly contacted with the heat sink. The reflector is adopted by the structure, the reflector is matched with the heat conduction supporting pad to form fixed connection between a ceramic plate of the LED integrated optical source and the lens, a light distribution device is formed, and meanwhile the heat sink is conveniently connected. The heat conduction heat dissipation performance of the lamp is improved, the installation and light distribution problems of the LED integrated optical source with the adoption of the ceramic support are solved, and the application of the LED integrated optical source in a down lamp, an industry and mining lamp and a projection lamp is facilitated.

Description

A kind of LED lamp light distribution structure

Technical field

The utility model relates to a kind of light distribution structure take LED as light source, particularly uses the light distribution structure of the LED integrated optical source of ceramics bracket encapsulation, also can be applicable in LED Down lamp, bulkhead lamp capable and the projecting lamp.

Background technology

In recent years, along with the development of LED lighting engineering, various LED integrated optical sources continue to bring out.Integrated optical source is exactly that the chip of plurality of LEDs light source is encapsulated on the support with ceramic wafer or copper coin thick and fast with the series-parallel mode of multichannel, makes it become an independently light source; The heat that this light source in use produces can increase along with the increase of light source power, the above high-power integrated optical source of 30w very easily causes the temperature on ceramic wafer or the copper coin stake body to raise rapidly, the temperature that raises can cause the dilatancy of timbering material, the support of dilatancy can make the led light source chip that is encapsulated on the support loosening, thereby cause the quick light decay of light source, ceramics bracket is compared with the copper coin support, the latter's dilatancy is very large, the former is then minimum and have good insulating properties, the connection in series-parallel when being more convenient for chip package.Therefore; its stability can be higher after having selected ceramic wafer to do the support of packaged light source for powerful integrated optical source; and commercially available ceramics bracket thickness only is 0.6 millimeter; very easily crushed when lamp assembled is produced, just can be safer so need to provide a kind of light distribution structure that it is protected rear use.In addition, the light that LED integrated optical source is sent all will carry out luminous intensity distribution to it by relatively supporting lens to be processed, and light can reach desirable irradiation effect.And commercially available lens before all be for the copper coin support designed, the thickness of copper coin support has 2-4 millimeters, its compressive property is relatively good, lens mostly directly are fixed on above the support, ceramics bracket then cannot be done like this, the one, lens crush ceramic wafer easily, and the 2nd, its light distribution effect is not good, and this has greatly affected ceramics bracket applying in more high-power integrated optical source light fixture.At present, along with the extensive application of LED Down lamp, market is more and more to the demand of high-power down lamp more, and also requiring more simultaneously, the optical energy irradiation of high-power down lamp gets farther, hot spot is more even, and original the sort ofly lens directly are fixed on the light effect that irradiates on the light source can not meet the need of market.

The utility model content

The purpose of this utility model provides a kind of LED lamp light distribution structure, can effectively solve installation and the luminous intensity distribution problem of the LED integrated optical source that adopts ceramics bracket, makes things convenient for the application of LED integrated optical source in Down lamp, bulkhead lamp capable and projecting lamp.

The purpose of this utility model is to be achieved through the following technical solutions:

A kind of LED lamp light distribution structure, the LED integrated optical source and the radiator that comprise convex lens, ceramics bracket encapsulation, also comprise reflector, it has the infundibulate reflective surface, described convex lens are installed on the front end of described reflector by retainer plate, the ceramics bracket of described LED integrated optical source is held on the rear end of described reflector by the heat conduction pad, and described reflector is further affixed with described radiator and make heat conduction pad and radiator close contact.

Especially, described heat conduction pad adopts copper coin or aluminium sheet to process.

Further, between described heat conduction pad and radiator and the ceramics bracket graphite heat conducting pad is installed.

Preferably, described reflector adopts white plastic to make.

Further, be provided with on the described reflector for line outlet groove and bonding wire point storehouse that power supply lead wire is installed.

Preferably, adopt screw to be connected and fixed between described retainer plate and the described reflector.

Preferably, adopt screw to be connected and fixed between described heat conduction pad and the described reflector.

Preferably, adopt screw to be connected and fixed between described reflector and the described radiator.

LED lamp light distribution structure described in the utility model, adopt a reflector, cooperating the heat conduction pad to form is fixedly connected with lens LED integrated optical source ceramic wafer, the connection radiator that has further facilitated when having formed light distribution device, improved the heat conduction and heat radiation performance of light fixture, has following several respects advantage: 1. can protect ceramics bracket not easily broken, make things convenient for the installation of lens; 2. can guarantee that the heat that light source sends conducts to spreader surface fully; 3. the light that by the setting of reflector height light source is sent gathers lens central authorities; 4. the ejaculation angle of the height of the geometric shape of scioptics and reflector control light can obtain satisfied fire-light effect thus.

Description of drawings

Fig. 1 is the structure composition diagram of the described LED lamp of embodiment light distribution structure.

Among the figure:

1. lens retainer plate 2. hole I

3. convex lens 4. lens flanging

5. reflector 6. hole II

7. light source fixing hole 8. reflector fixing holes

9. reflective surface 10. bonding wire point storehouses

11. line outlet groove 12. LED integrated optical sources

14. ceramics brackets 13. light source is bored a hole

15. the fixing silk of heat conduction pad 16. light sources hole

17. radiator 18. reflector fixing holes

The specific embodiment

Further specify the technical solution of the utility model below in conjunction with accompanying drawing and by the specific embodiment.

With reference to shown in Figure 1, provided the structure composition diagram of LED lamp light distribution device described in the utility model, mainly comprise convex lens 3, reflector 5, LED integrated optical source 12, heat conduction pad 15, radiator 17, described convex lens 3 are positioned at reflector 5 fronts, lens retainer plate 1 back, pass hole I 2 on the lens retainer plate 1 with screw, be fixed on after being pressed in the lens retainer plate in the lens flanging 4 in the hole II 6 on the reflector 5; Described reflector 5 adopts the pure white plastic material injection molded through injection machine, there are the function digits such as infundibulate reflective surface 9, lens holddown groove, light source fixing hole 7, light source both positive and negative polarity bonding wire point storehouse 10, reflector fixing hole 8, both positive and negative polarity line outlet groove 11 to consist of on the member body of reflector 5, are screwed on the radiator 17; Described LED integrated optical source 12 is between reflector 5 and heat conduction pad 15, pass with the light source fixing hole 7 of screw from reflector 5, reflector 5 is pressed on the light source through light source perforation 13 is connected with heat conduction pad 15, described heat conduction pad 15 has higher rigidity and non-deformability, the ceramics bracket 14 of LED integrated optical source 12 can be clamped between heat conduction pad 15 and the reflector 5, it is cracked that it is not produced; Lamp body (or the bulkhead lamp capable that described radiator 17 is Down lamps; the lamp body of projecting lamp); the reflector fixing hole 8 that passes above the reflector 5 with screw is fastenedly connected with radiator 17; LED integrated optical source 12 and the heat conduction pad 15 that has been fixed on the reflector 5 between reflector 5 and the radiator 17; heat conduction pad 15 former and later two faces all are added with very thin conductive graphite pad; to increase the contact-making surface between heat conduction pad 15 and light source ceramics bracket 14 and heat conduction pad 15 and the radiator 17; improve thermal conductivity; strengthen the radiating effect of whole lamp; simultaneously; the compressibility that the conductive graphite spacer has also can be protected ceramics bracket 14 better.

The luminous intensity distribution principle of LED lamp light distribution device described in the utility model is: all focused on the convex lens 3 after infundibulate reflective surface 9 refractions of the light that LED integrated optical source 12 is sent through reflector 5; Light penetrates angle by the distance between convex lens 3 and the LED integrated optical source 12, and namely the height of reflector 5 is adjusted; Also protected ceramics bracket when utilizing the white plastic material to reach best reflecting effect.Can obtain thus satisfied fire-light effect.

Above embodiment has just set forth basic principle of the present utility model and characteristic; the utility model is not limited by above-described embodiment; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various variations and change, and these variations and change all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. LED lamp light distribution structure, the LED integrated optical source and the radiator that comprise convex lens, ceramics bracket encapsulation, it is characterized in that, also comprise reflector, it has the infundibulate reflective surface, described convex lens are installed on the front end of described reflector by retainer plate, and the ceramics bracket of described LED integrated optical source is held on the rear end of described reflector by the heat conduction pad, and described reflector is further affixed with described radiator and make heat conduction pad and radiator close contact.

2. LED lamp light distribution structure according to claim 1 is characterized in that: described heat conduction pad adopts copper coin or aluminium sheet to process.

3. LED lamp light distribution structure according to claim 1 is characterized in that: between described heat conduction pad and radiator and the ceramics bracket graphite heat conducting pad is installed.

4. LED lamp light distribution structure according to claim 1 is characterized in that: described reflector adopts white plastic to make.

5. LED lamp light distribution structure according to claim 1 is characterized in that: be provided with on the described reflector for line outlet groove and bonding wire point storehouse that power supply lead wire is installed.

6. according to claim 1 to 5 arbitrary described a kind of LED lamp light distribution structures, it is characterized in that: adopt screw to be connected and fixed between described retainer plate and the described reflector.

7. according to claim 1 to 5 arbitrary described a kind of LED lamp light distribution structures, it is characterized in that: adopt screw to be connected and fixed between described heat conduction pad and the described reflector.

8. according to claim 1 to 5 arbitrary described a kind of LED lamp light distribution structures, it is characterized in that: adopt screw to be connected and fixed between described reflector and the described radiator.