CN201232990Y

CN201232990Y - LED cartridge lamp

Info

Publication number: CN201232990Y
Application number: CNU2008200958913U
Authority: CN
Inventors: 金明武; 张道静
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-29
Filing date: 2008-07-29
Publication date: 2009-05-06
Anticipated expiration: 2018-07-29

Abstract

The utility model discloses an LED tube lamp which at least comprises a lamp cap casing and a power box. An LED lamp panel is arranged in the lamp cap casing; at least one fan is also arranged in the lamp cap casing; the fan is electrically connected with the power box and blows the LED lamp panel for heat dissipation. Being a heat dissipating structure, the fan is arranged in the lamp cap casing to directly blow the LED lamp panel for heat dissipation, so the LED tube lamp does not need others radiators. Thereby, on the premise that the heat dissipation effect is not affected, the volume and the weight of the heat dissipating structure are reduced, and the cost of the heat dissipating structure is reduced.

Description

A kind of LED Down lamp

Technical field

The utility model relates to lighting technical field, relates in particular to a kind of LED (Light Emitting Diode, light emitting diode) Down lamp.

Background technology

Down lamp is a kind of lighting that is embedded into light down-ejection type in the ceiling.Its maximum characteristics are exactly to keep the integral body of building decoration unified and perfect, can not destroy the perfect unity of furred ceiling art because of the setting of light fixture.Its structural advantages is that light source is hidden building decoration inside, and light source does not expose, free from glare, and people's visual effect is soft, even, is widely used in environment such as supermarket, market, office building, hotel, coffee shop, family.And along with the continuous development of science and technology, Down lamp is also constantly being weeded out the old and bring forth the new: develop into electricity-saving lamp from incandescent lamp, up-to-date LED semiconductor lamp.Therefore the LED Down lamp more and more obtains user's favor because have advantages such as energy-saving and environmental protection and life-span be long.

The LED Down lamp generally includes lamp head shell and power pack at least, be provided with the LED lamp plate in the described lamp head shell, described LED lamp plate is electrically connected on a substrate by some LEDs chips and forms, and substrate can be PCB (Printed Circuit Board, a printed circuit board (PCB)).Described LED lamp plate can be made up of many ￠ 5mm low-power LED chips, and perhaps the LED lamp plate is made up of many 1W～20W high-power LED chip.Because the illuminating LED Down lamp belongs to the power type semiconductor device, it has a lot of heats and sends when work, needs in time heat to be dispersed in the air to go, not so the led chip temperature rises, brightness will soon decay, even damages LED, and the life-span of led light source is reduced.Therefore,, normally adopt aluminium/copper base to add aluminium/copper radiator, add natural heat dissipation, wind-cooling heat dissipating or heat pipe heat radiation, also have and adopt semiconductor chilling plate to dispel the heat so the LED Down lamp generally all will adopt the radiator structure design.Yet, not only volume is big for the radiator structure of existing LED Down lamp, and can increase the weight of LED Down lamp, particularly for the high-capacity LED chip, heat can be conducted though led chip sees through aluminium/copper radiator, the use amount of aluminium/copper radiator is higher, the weight of this aluminium/copper radiator increases, respective volume just increases, and then causes cost to increase, and so is unfavorable for very much the design and installation of LED Down lamp.

In summary, the LED Down lamp of prior art obviously exists inconvenience and defective, so be necessary to be improved on reality is used.

The utility model content

At above-mentioned defective, the purpose of this utility model is to provide a kind of LED Down lamp, advantage in light weight, that volume is little and cost is low that its radiator structure has.

To achieve these goals, the utility model provides a kind of LED Down lamp, at least comprise lamp head shell and power pack, be provided with the LED lamp plate in the described lamp head shell, returning apparatus has at least one fan as unique radiator structure in the described lamp head shell, described fan is electrically connected described power pack, and described fan work time blowing to described LED lamp plate is realized heat radiation.

According to LED Down lamp of the present utility model, described power pack is arranged on the top of described lamp head shell, and described fan assembly is in the position of the inner and close described power pack of described lamp head shell, and described fan the place ahead device has described LED lamp plate.

According to LED Down lamp of the present utility model, described lamp head shell and power pack are one-body molded; Perhaps described lamp head shell is connected to each other with power pack and is in the same place.

According to LED Down lamp of the present utility model, described lamp head shell is provided with some air inlets and air outlet.

According to LED Down lamp of the present utility model, described LED lamp plate comprises substrate and some LEDs chips, and described some LEDs chips are electrically connected on described substrate.

According to LED Down lamp of the present utility model, described substrate is pcb board, flexible PCB plate, aluminium base or copper base.

According to LED Down lamp of the present utility model, described led chip welds or is encapsulated on the described substrate.

According to LED Down lamp of the present utility model, described lamp head shell has light-passing board at the place ahead of described LED lamp plate returning apparatus.

According to LED Down lamp of the present utility model, the material of described light-passing board is simple glass, quartz glass, lucite or PVC.

According to LED Down lamp of the present utility model, the surface of described light-passing board is transparent type or frosted type.

The utility model LED Down lamp directly blows LED lamp plate mode with fan and dispels the heat, and need not add other any radiators as radiator structure by device fan in lamp head shell.Like this, the utility model LED Down lamp can reduce the volume and weight of radiator structure under the prerequisite that does not influence radiating effect, and has reduced the cost of radiator structure.

Description of drawings

Fig. 1 is the three-dimensional exploded view of the preferred LED Down lamp of the utility model;

Fig. 2 is the three-dimensional structure diagram of the preferred LED Down lamp of the utility model (no light-passing board);

Fig. 3 is the three-dimensional structure diagram of the preferred LED Down lamp of the utility model (light-passing board is arranged);

Fig. 4 is the stereo appearance figure of the preferred LED Down lamp of the utility model.

The specific embodiment

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

Basic thought of the present utility model is, the device fan is as radiator structure in the lamp head shell of LED Down lamp, directly blow LED lamp plate mode and dispel the heat, and need not add other any radiators, advantage in light weight, that volume is little and cost is low that its radiator structure has with fan.

Fig. 1～Fig. 4 shows the preferred LED cylinder lamp structure of the utility model, described LED Down lamp 100 comprises lamp head shell 10 and power pack 20 at least, be provided with LED lamp plate 40 in the described lamp head shell 10, especially, returning apparatus has at least one fan 30 as unique radiator structure in the described lamp head shell 10, described fan 30 is electrically connected power pack 20, and dries during described fan 30 work to LED lamp plate 40 and realize heat radiation.Because LED Down lamp 100 has when work and sends a large amount of heats, need in time heat to be dispersed in the air to go, so device fan 30 so that effectively LED lamp plate 40 is carried out wind-cooling heat dissipating, and need not add other any radiators as radiator structure in lamp head shell 10.Fan 30 can be spirally connected or mode such as clamping is placed in the lamp head shell 10.Described power pack 20 is used to connect external power source so that LED Down lamp 100 is powered.

Preferably, described power pack 20 is arranged on the top of lamp head shell 10, and lamp head shell 10 and power pack 20 can be one-body molded, perhaps lamp head shell 10 and power pack 20 clamping each other, is spirally connected or mode such as welding links together.Described fan 30 devices are in the position of lamp head shell 10 inner and close power packs 20, and fan 30 the place ahead devices have LED lamp plate 40.

As shown in Figure 4, described lamp head shell 10 peripheries are outer frames 11, and lamp head shell 10 also can be provided with some air inlets 12 and air outlet 13, and these air inlets 12 and air outlet 13 form negotiable air flue, so that the heat that fan 30 can produce LED lamp plate 40 is better discharged.Need point out that the shape of lamp head shell 10 can be according to actual needs and varied, it is also unrestricted.

Described lamp head shell 10 also can have at least one light-passing board 50 by device in the place ahead of LED lamp plate 40, and this light-passing board 50 can play the effect of protection LED lamp plate 40, but light-passing board 50 need have good light transmittance, so that appear the light that LED lamp plate 40 sends.The material of described light-passing board 50 can be simple glass, quartz glass, lucite or PVC (Polyvinylchlorid, polyvinyl chloride) etc., and the surface of described light-passing board 50 can be processed into transparent type or frosted type.Certainly, the utility model LED Down lamp 100 also can not comprise light-passing board 50.

More preferably, the shape of described LED lamp plate 40 is not limit, and it can be arbitrary shapes such as square, circle or ellipse, and LED lamp plate 40 comprises substrate and some LEDs chip (not shown), and described some LEDs chips are electrically connected on substrate.Described substrate can be pcb board, flexible PCB plate, aluminium base or copper base etc., and described substrate can be double layer substrate or single layer substrate.Described some LEDs chips are welded on the substrate with SMD or plug-in type, and perhaps described some LEDs chips directly are encapsulated on the substrate.The power of described single LEDs chip does not limit, and can be high-power LED chip or low-power LED chip, and a number of led chip is also unrestricted.

In summary, the utility model LED Down lamp directly blows LED lamp plate mode with fan and dispels the heat, and need not add other any radiators as radiator structure by device fan in lamp head shell.Like this, the utility model LED Down lamp can reduce the volume and weight of radiator structure under the prerequisite that does not influence radiating effect, and has reduced the cost of radiator structure.In addition, the utility model can be so that the LED Down lamp reaches the effect of light and beautiful, thereby plays the effect that the LED illumination is popularized that promotes.

Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.

Claims

1, a kind of LED Down lamp, at least comprise lamp head shell and power pack, be provided with the LED lamp plate in the described lamp head shell, it is characterized in that, returning apparatus has at least one fan as unique radiator structure in the described lamp head shell, described fan is electrically connected described power pack, and described fan work time blowing to described LED lamp plate is realized heat radiation.

2, LED Down lamp according to claim 1 is characterized in that, described power pack is arranged on the top of described lamp head shell, and described fan assembly is in the position of the inner and close described power pack of described lamp head shell, and described fan the place ahead device has described LED lamp plate.

3, LED Down lamp according to claim 2 is characterized in that, described lamp head shell and power pack are one-body molded; Perhaps described lamp head shell is connected to each other with power pack and is in the same place.

4, LED Down lamp according to claim 2 is characterized in that, described lamp head shell is provided with some air inlets and air outlet.

5, LED Down lamp according to claim 2 is characterized in that, described LED lamp plate comprises substrate and some LEDs chips, and described some LEDs chips are electrically connected on described substrate.

6, LED Down lamp according to claim 5 is characterized in that, described substrate is pcb board, flexible PCB plate, aluminium base or copper base.

7, LED Down lamp according to claim 5 is characterized in that, described led chip welds or is encapsulated on the described substrate.

8, according to each described LED Down lamp of claim 1～7, it is characterized in that described lamp head shell has light-passing board at the place ahead of described LED lamp plate returning apparatus.

9, LED Down lamp according to claim 8 is characterized in that, the material of described light-passing board is simple glass, quartz glass, lucite or PVC.

10, LED Down lamp according to claim 8 is characterized in that, the surface of described light-passing board is transparent type or frosted type.