CN201289054Y - LED lamp - Google Patents

Abstract

The utility model relates to a lighting lamp technical field, especially, relate to a LED lamp, it includes aluminium base board, the LED of installation fixing on aluminium base board, the bottom fixedly connected with heat abstractor of aluminium base board, heat abstractor is including being cupped heat dissipation body, the lateral surface shaping of heat dissipation body has a plurality of heat radiation fins, a plurality of heat radiation fins are circular radiation shape, heat abstractor's top is fixed with the printing opacity dustcoat that is used for covering aluminium base board, heat abstractor's bottom installation is fixed with the power box body that is used for providing the power, because fixedly connected with special heat abstractor in the bottom of aluminium base board, when LED work is lighted, the produced heat of LED passes through the aluminium base board, reach heat dissipation body of heat abstractor, reach heat radiation fins by heat dissipation body again, and distribute away by heat radiation fins promptly and rapidly, thereby improve the radiating effect of LED lamp; therefore, the utility model has the advantages of simple and reasonable structure, the radiating effect is good, can avoid LED's life to shorten.

Description

A kind of LED light

Technical field:

The utility model relates to the technical field of lighting fixtures, in particular to an LED lamp.

Background technique:

Due to the long service life of LEDs (Light Emitting Diodes, light emitting diodes), low energy consumption, and remarkable energy saving, LEDs have been widely used as light sources in daily life, such as cup lights, spotlights, car lights and other lighting fixtures. However, with the increase in the number of LEDs in LED lamps and the development of high-power and high-brightness LEDs, the heat generated by LED lamps is gradually increasing. Therefore, how to quickly dissipate the heat generated by LED lamps has become a major problem that must be solved in current LED lamp technology.

Existing LED lamps are mainly composed of aluminum alloy shells, aluminum substrates, and LEDs mounted and fixed on the aluminum substrates. The aluminum substrates are installed in the shells and fixedly connected with the shells. This kind of LED lights do not have special heat dissipation devices. It mainly uses the thermal conductivity of the aluminum substrate and the shell itself to conduct away the heat generated by the LED when it is working. However, due to the small size of the aluminum substrate, the heat dissipation efficiency is not high, and the shell of the LED lamp is affected by the appearance shape. Due to the limitation, its heat dissipation effect is poor, and it cannot promptly and quickly conduct away the large amount of heat generated by the LED when it is working, resulting in shortened service life of the LED.

Utility model content:

The purpose of this utility model is to provide an LED lamp with improved heat dissipation effect by setting a special heat dissipation device in view of the deficiencies in the prior art.

In order to achieve the above object, the technical solution adopted by the utility model is:

It includes an aluminum substrate and an LED installed and fixed on the aluminum substrate. The bottom end of the aluminum substrate is fixedly connected with a heat dissipation device. The heat dissipation device includes a cup-shaped heat dissipation body. Heat dissipation fins, a plurality of heat dissipation fins are in a circular radial shape, the top of the heat dissipation device is fixed with a light-transmitting cover for covering the aluminum substrate, and the bottom of the heat dissipation device is fixed with a power supply box for providing power .

Wherein, the top of the heat dissipation body is provided with an upper accommodating area for placing the aluminum substrate.

Wherein, the power supply box includes an insulating shell, a lamp cap interlocked with the insulating shell, and a power circuit board, the power circuit board is installed and fixed between the insulating shell and the lamp cap, and the power circuit board and the aluminum substrate The LEDs are electrically connected.

Wherein, a flange for enclosing the bottom of the heat sink is formed on the insulating shell, and the flange is in the shape of a trumpet.

Wherein, an insulating film is provided on the top of the insulating shell.

Wherein, the bottom of the heat dissipation body is provided with a lower accommodating area for placing the top of the insulating case.

Wherein, the light-transmitting outer cover is a spherical shell.

The beneficial effects of the utility model are:

An LED lamp provided by the utility model includes an aluminum base plate and an LED installed and fixed on the aluminum base plate. The bottom end of the aluminum base plate is fixedly connected with a heat dissipation device. The outer surface of the main body is formed with a plurality of heat dissipation fins, and the plurality of heat dissipation fins are in a circular radial shape. The top of the heat dissipation device is fixed with a light-transmitting cover for covering the aluminum substrate, and the bottom of the heat dissipation device is fixed. There is a power supply box for providing power. Since a special cooling device is fixedly connected to the bottom of the aluminum substrate, when the LED is working for lighting, the heat generated by the LED will pass through the aluminum substrate and then be transmitted to the cooling body of the cooling device, and then by The heat dissipation body is transmitted to the heat dissipation fins, and then dissipated by the heat dissipation fins in a timely and rapid manner, thereby improving the heat dissipation effect of the LED lamp. Therefore, the utility model has simple and reasonable structure, good heat dissipation effect, and can avoid shortening the service life of the LED.

Description of drawings:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the exploded schematic view of the utility model;

Fig. 3 is a top view of the utility model heat sink;

Fig. 4 is a cross-sectional view along line A-A of Fig. 3 .

Detailed ways:

The utility model will be further described below in conjunction with the accompanying drawings, see Figures 1 to 4, the utility model includes an aluminum substrate 1, an LED 2 installed and fixed on the aluminum substrate 1, and a heat sink 3 is fixedly connected to the bottom of the aluminum substrate 1 , the heat dissipation device 3 includes a cup-shaped heat dissipation body 31, the outer surface of the heat dissipation body 31 is formed with a plurality of heat dissipation fins 32, and the plurality of heat dissipation fins 32 are in a circular radial shape. The heat dissipation device 3 A light-transmitting outer cover 4 for covering the aluminum substrate 1 is fixed on the top of the heat sink 3, and a power supply box 5 for providing power is installed and fixed on the bottom of the heat sink 3. When the LED 2 is working for lighting, the heat generated by the LED 2 passes through the aluminum substrate 1 Afterwards, it is transmitted to the heat dissipation body 31 of the heat dissipation device 3, and then passed from the heat dissipation body 31 to the heat dissipation fins 32, and is promptly and rapidly dissipated by the heat dissipation fins 32, thereby improving the heat dissipation effect of the LED lamp and avoiding shortening the service life of the LED2 . It should be noted that the number of LEDs 2 installed and fixed on the aluminum substrate 1 of the present invention can be multiple, and is not limited to the four selected for this embodiment.

The top of the heat dissipation body 31 in this embodiment is provided with an upper accommodating area 311 for placing the aluminum substrate 1. More specifically, the aluminum substrate 1 is fixed to the bottom end of the upper accommodating area 311 by screws, and the light-transmitting The bottom of the outer cover 4 is also fixed in the upper accommodating area 311, wherein the transparent outer cover 4 is a spherical shell. In order to make the light of the LED2 pass through the transparent outer cover 4 more uniformly, the transparent outer cover 4 can be made of Milky white glass is made, and of course, the light-transmitting outer cover 4 can also be made of other materials into different shapes, as long as it can improve the lighting effect.

The power box of this embodiment includes an insulating shell 51, a lamp cap 52 interlocked with the insulating shell 51, and a power supply circuit board 53, and the power circuit board 53 is installed and fixed between the insulating shell 51 and the lamp cap 52. The circuit board 53 is electrically connected to the LED2 on the aluminum substrate 1. More specifically, the bottom of the heat dissipation body 31 is provided with a lower accommodating area 312 for placing the top of the insulating housing 51. The heat dissipation body 31 is provided with a The through hole connecting the upper accommodating area 311 with the lower accommodating area 312, the through hole can place a power line, so that the power supply circuit board 53 is electrically connected with the LED2 on the aluminum substrate 1, and at the same time, it is used for screw connection in the lamp holder The inner wall of the lamp holder 52 is electrically connected with the power circuit board 53 through wires, so that the power circuit board 53 is connected to an external power supply.

In this embodiment, a flange 511 is formed on the insulating housing 51 to cover the bottom of the heat sink 3. The flange 511 is in the shape of a trumpet, wherein an insulating film 512 is provided on the top of the insulating housing 51. Since the LED lamp is energized When the lamp holder 52 is charged, the insulating shell 51 of this structure can insulate the lamp holder 52 from the heat sink 3, so as to prevent people from touching the heat sink 3 during use and causing electric shock.

Of course, the above are only preferred embodiments of the utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the utility model patent application are included in the utility model patent application within range.

Claims (7)

1. An LED lamp, comprising an aluminum substrate (1), an LED (2) installed and fixed on the aluminum substrate (1), characterized in that: the bottom end of the aluminum substrate (1) is fixedly connected with a heat sink ( 3), the heat dissipation device (3) includes a cup-shaped heat dissipation body (31), the outer surface of the heat dissipation body (31) is formed with a plurality of heat dissipation fins (32), and the plurality of heat dissipation fins (32) In a circular radial shape, the top of the heat sink (3) is fixed with a light-transmitting cover (4) for covering the aluminum substrate (1), and the bottom of the heat sink (3) is fixed with a Power supply box (5). 2. The LED lamp according to claim 1, characterized in that: the top of the heat dissipation body (31) is provided with an upper accommodating area (311) for placing the aluminum substrate (1). 3. An LED lamp according to claim 1, characterized in that: the power supply box includes an insulating shell (51), a lamp cap (52) interlocking with the insulating shell (51), a power supply circuit board (53), the power circuit board (53) is installed and fixed between the insulating housing (51) and the lamp cap (52), and the power circuit board (53) is electrically connected to the LED (2) on the aluminum substrate (1). 4. An LED lamp according to claim 3, characterized in that: the insulating housing (51) is formed with a flange (511) for wrapping the bottom of the heat sink (3), and the flange (511 ) is trumpet-shaped. 5. The LED lamp according to claim 4, characterized in that: an insulating film (512) is provided on the top of the insulating shell (51). 6. The LED lamp according to claim 5, characterized in that: the bottom of the heat dissipation body (31) is provided with a lower accommodating area (312) for placing the top of the insulating casing (51). 7. The LED lamp according to claim 1, characterized in that: the light-transmitting outer cover (4) is a spherical shell.

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