CN101699136A

CN101699136A - LED lamp

Info

Publication number: CN101699136A
Application number: CN200910207854A
Authority: CN
Inventors: 林顺权
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-10-29
Filing date: 2009-10-29
Publication date: 2010-04-28

Abstract

The invention discloses an LED lamp, comprising an LED chip, a base and a shell, wherein the base is connected at the bottom part of the shell; the shell comprises a metal bearing substrate and an LED chip arranged on the metal bearing substrate; the periphery of the metal bearing substrate is provided with a plurality of metal radiating fins; and the inner side of the metal radiating fin is formed with a shell cavity which is arranged with a reflector body for a light source thereon to irradiate outwards. The lamp in the invention still uses the limited volume of the traditional halogen tungsten lamp and does a reasonable allocation on the radiating structure, thus doubling the radiating area and bettering the radiating effect with a unique appearance; the LED chip replaces the traditional light source, which not only ensures the light-emitting effect, but also saves energies, and is an ideal substitute for the traditional halogen tungsten lamp.

Description

A kind of LED lamp

Technical field

The present invention relates to a kind of lighting, particularly a kind of LED lamp.

Background technology

Traditional aluminium matter halogen spot light comprises pedestal, metal shell, and the metal shell inner surface is designed to parabolic surface, and its outer surface also is smooth sphere, and pedestal is installed on the metal shell outer surface, and luminous tungsten filament is installed in the metal shell.This shot-light utilizes the principle of halogen tungsten circulation to make the halide in the interior blanketing gas of housing be in gaseous state, so the enclosure interior temperature is higher, and correspondingly, the lamp housing size is just little.The structural design of this halogen tungsten lamp is unreasonable, because the Lamp cup volume causes the heat in the housing to distribute for a short time, reduced the service life of shot-light, and its contour structures seems dull, in addition, adopt the method for traditional filament energising heating to cause the light fixture consumption of electric power bigger, cause the waste of the energy easily.

Summary of the invention

In order to address the above problem, the object of the present invention is to provide the LED lamp of a kind of efficient energy-saving, good heat dissipation effect.

The present invention is that the technical scheme that solves the problems of the technologies described above employing is:

A kind of LED lamp, comprise led chip, pedestal and housing, described pedestal is connected the bottom of housing, described housing includes metal support substrate, led chip is installed on the metal support substrate, oriented extraradial several metal fins of the outer periphery of described metal support substrate, the inboard of metal fin is formed with the housing cavity, and the housing cavity is provided with for the reflective cup of light source toward external exposure.

As the further improvement of such scheme, described metal fin and metal support substrate are integrated.

The invention has the beneficial effects as follows: adopt led chip to replace traditional filament luminous, can in the Lamp cup of limited bulk, use the led chip of lower-wattage and make shot-light have good luminous effect, not only save the energy, and environmental protection, can prolong the service life of LED lamp; The setting of metal fin remains unchanged the volume of Lamp cup, but has increased the area of dissipation of Lamp cup, make it to have better heat radiating effect, and external structure is more neat; The reflector physical efficiency is further improved the illumination effect of LED lamp; In addition, add and utilize man-hour metal support substrate and the one-body molded heat that led chip is given out of metal fin to conduct to fin, thereby can better heat be distributed by metal support substrate.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is a cutaway view of the present invention;

Fig. 2 is a decomposing schematic representation of the present invention.

The specific embodiment

See figures.1.and.2, LED lamp of the present invention, comprise led chip 1, pedestal 2 and housing 3, described pedestal 2 is connected the bottom of housing 3, described housing 3 includes metal support substrate 30, and led chip 1 is installed on the metal support substrate 30, oriented extraradial several metal fins 5 of the outer periphery of described metal support substrate 30, the inboard of metal fin 5 is formed with housing cavity 50, and housing cavity 50 is provided with for the reflective cup 6 of light source toward external exposure.This LED lamp is changed traditional halogen tungsten lamp light source, and integrated LED chip 1 is installed on the metal support substrate 30 in housing 3, makes power have only the LED of 10W just can substitute the conventional light source of 75w, has same illumination effect simultaneously, and energy-saving effect is remarkable; Being provided with of metal fin 5 increased the contact area of housing 3 with air, help heat radiation, can prolong the service life of light fixture, and outward appearance is relatively unique, overcome the single shortcoming of conventional lights profile, the reflective cup of installing on the housing cavity 50 6 can further improve the radiation response of LED lamp.Experimental result proves, LED lamp of the present invention in use, even under 40 ℃ of environment temperatures, the temperature of Lamp cup also is no more than 60 ℃, the heat that led chip 1 produces can dissipate at once, has better heat radiating effect, thereby has improved the service life of LED lamp.

Further, described metal fin 5 is integrated with metal support substrate 30.The design has continued to use the limited bulk of traditional halogen tungsten lamp, add man-hour can be on metal support substrate 30 integrally formed metal fin 5, not only can simplified processing process, and on radiator structure, done rational distribution, the heat that metal support substrate 30 can send led chip 1 effectively conducts to metal fin 5, metal fin 5 makes the area of dissipation of housing 3 increase by one times, thereby has increased the contact area of housing 3 with air, makes it to have better radiating effect.

Further, described metal support substrate 30 is extended with metal base ring 4 downwards with metal fin 5.Metal base ring 4 the area of dissipation that can further increase housing 3 is set.

Further, the inboard of described pedestal 2 socket metal base rings 4.Pedestal 2 is installed in the inboard of metal base ring 4, metal base ring 4 is contacted with extraneous air, help the heat transferred extraneous air, thereby reach better radiating effect.

As preferred embodiment, described reflective cup 6 is for being socketed in the reflection shield of metal fin 5 inboards.Simultaneously, reflective cup 6 also can form wall of cup adding the inner seal of man-hour at metal fin 5 by metal fin 5, and then scribbles reflecting coating form on the madial wall of wall of cup.

In the described pedestal 2 driver circuit plate 20 is installed, described driver circuit plate 20 is electrically connected with led chip 1.Led chip 1 is carried out constant current drive, the brightness that not only can keep led chip 1, and can protect the LED lamp to prolong its service life; In addition, the structure of this kind driving and the lamp integrated design of LED makes whole LED lamp profile smoothness, whole better appearance.

Further, described reflection shield is connected on the described metal fin 5 by the engaging position 7 that described metal fin 5 tops cave inward.Adopt reflection shield 6 that light is concentrated, can more effective reduction light loss, improve the illumination effect of LED lamp, the structure that the top of described reflection shield 6 and metal fin 5 fastens makes housing 3 and reflection shield effectively be combined into an integral body, connect more firm, also easy disassembly simultaneously.

In addition, can adopt ceramic fixed pedestal 8 that led chip 1 is fixedly mounted on the metal support substrate 30.Utilize the characteristic such as high temperature resistant, corrosion-resistant and wear-resistant of pottery, led chip 1 is fixed in the housing better, the installation of led chip 1 and change and also become more convenient.In addition, also can adopt the bottom fixed installation binding post 22 of screw pedestal 2, the LED lamp can be installed on various device and place flexibly by binding post 22, thereby enlarge the scope of application of the present invention effectively.

In a word, LED lamp of the present invention and traditional halogen tungsten lamp outward appearance, volume similarity are very high, use the LED of lower-wattage to substitute conventional light source and can have same illumination effect, and energy-saving effect is remarkable, and the effect with good heat radiation is the ideal substitute of conventional light source.

The present invention is not limited to above-mentioned embodiment, as long as it reaches technique effect of the present invention with essentially identical means, all should belong to protection scope of the present invention.

Claims

1. LED lamp, comprise led chip (1), pedestal (2) and housing (3), described pedestal (2) is connected the bottom of housing (3), it is characterized in that: described housing (3) includes metal support substrate (30), led chip (1) is installed on the metal support substrate (30), oriented extraradial several metal fins of the outer periphery of described metal support substrate (30) (5), the inboard of metal fin (5) is formed with housing cavity (50), and housing cavity (50) is provided with for the reflective cup (6) of light source toward external exposure.

2. LED lamp according to claim 1 is characterized in that: described metal fin (5) is integrated with metal support substrate (30).

3. LED lamp according to claim 1 is characterized in that: described metal support substrate (30) is extended with metal base ring (4) downwards with metal fin (5).

4. LED lamp according to claim 2 is characterized in that: the inboard of described pedestal (2) socket metal base ring (4).

5. LED lamp according to claim 1 is characterized in that: described reflective cup (6) is for being socketed in the inboard reflection shield of metal fin (5).

6. LED lamp according to claim 1 is characterized in that: driver circuit plate (20) is installed in the described pedestal (2), and described driver circuit plate (20) is electrically connected with led chip (1).

7. LED lamp according to claim 5 is characterized in that: described reflection shield is connected on the described metal fin (5) by the engaging position (7) that described metal fin (5) top caves inward.