CN201547725U

CN201547725U - Heat dissipation device of LED lamp

Info

Publication number: CN201547725U
Application number: CN2009202364079U
Authority: CN
Inventors: 施涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-09-28
Filing date: 2009-09-28
Publication date: 2010-08-11
Anticipated expiration: 2019-09-28

Abstract

The utility model discloses a heat dissipation device of an LED lamp, and is characterized in that the heat dissipation device of the LED lamp comprises a connecting base and a plurality of radiating fin sets formed by connecting radiating fins, wherein each radiating fin set is uniformly distributed at the outer side of the connecting base using the central axis of the connecting base as the center, the outermost side of each radiating fin set is provided with a thickened radiating pin, the thickened radiating pin of each radiating pin set is provided with an aluminum base plate provided with an LED lamp bulb and a screw connecting hole housed outside the lamp, each radiating pin set is connected with the connecting base, and the connecting base is connected with the lamp base of the LED lamp. The whole heat dissipation device can form an air convection passage no matter in longitudinal direction or transverse direction, thus the heat emitted by the LED lamp bulb can be taken away by flown air quickly, thereby having very good heat dissipation effect, and an LED luminous component has prolonged service life.

Description

A kind of heat abstractor of LED light fixture

Technical field

The utility model relates to the LED lighting technical field, is a kind of heat abstractor of LED light fixture specifically.

Background technology

LED (Light Emitting Diode) is the english abbreviation of light emitting diode, it is a kind of solid-state semiconductor devices, it can directly be converted into light to electric energy, the LED lamp is to the very sensitive luminescent device of temperature, under the lower situation of operating temperature, could obtain high optical index, the increase of LED lamp unit light flux can make every unit caloric value rise significantly, and the increase of heat makes LED emitting components luminance decay, reduction of service life.The heat abstractor of more existing LED lamps as heat sink and so on, generally is to connect heat pipe in the periphery of LED lamp substrate to improve radiating effect, because the sealing of heat pipe one end can not form cross-ventilation, the radiating effect effect is undesirable.

Summary of the invention

The purpose of this utility model provides a kind of effective raising cross-ventilation, and radiating effect is effective, the heat abstractor of the LED light fixture of LED emitting components long service life.

The purpose of this utility model is achieved through the following technical solutions.

A kind of heat abstractor of LED light fixture, it is characterized in that: the heat abstractor of described LED light fixture comprises connection matrix and several groups of fins that are formed by connecting by fin, each groups of fins is that the center is evenly distributed on the outside that connects matrix with the central axis that connects matrix, the outermost of each groups of fins is provided with the fin of a thickening, be equipped with on the fin of the thickening on each groups of fins and be used to install the aluminium base that LED lamp pearl is housed and the screw connecting hole of light fixture outer cover, each groups of fins be connected matrix and connect, an end that connects matrix is provided with the link that is connected with the lamp holder of LED light fixture.

Described connection matrix is a sleeve, and groups of fins is provided with 8, and each fin in the groups of fins is provided with external screw thread by connecting the skeleton series connection at the link that connects matrix, and each fin is a cylinder, and the cylinder end face is trapezoidal.

Be provided with between described adjacent two groups of fins at interval.

The cavity of described connection matrix is a circular cavity, in be provided with a square body cavity that is used to install led drive circuit, at an end relative one bottom is installed with the link that connects matrix, bottom is provided with the gap with being connected between the matrix.

Described connection matrix and several are processed by the aluminum material one by the groups of fins that fin is formed by connecting.

The lamp holder of the described LED light fixture that is connected with the link that is connected matrix is provided with a through hole, and an end of through hole is towards connecting matrix, and the other end of through hole is towards the top of the lamp holder of LED light fixture.

The utility model compared with prior art has the following advantages:

The utility model is owing to comprise connection matrix and several groups of fins that are formed by connecting by fin, each groups of fins is that the center is evenly distributed on the outside that connects matrix with the central axis that connects matrix, the outermost of each groups of fins is provided with the fin of a thickening, be used to install LED lamp pearl aluminium base and light fixture outer cover are installed, and be that longitudinal direction or horizontal direction all are formed with cross-ventilated passage on the entire heat dissipation device, so the heat that LED lamp pearl sends can be distributed soon, the radiating effect effect is very good, and the LED emitting components is prolonged service life.

Description of drawings

Fig. 1 is the heat abstractor perspective view () of the utility model LED light fixture;

Fig. 2 is the heat abstractor perspective view (two) of the utility model LED light fixture;

Fig. 3 is the heat abstractor perspective view (three) of the utility model LED light fixture.

The specific embodiment

Describe in further detail below in conjunction with the heat abstractor of accompanying drawing the utility model LED light fixture.

As Figure 1-3, the heat abstractor of the utility model LED light fixture, comprise and connect matrix 1 and several groups of fins 2 that are formed by connecting by fin 24, each groups of fins 2 is that the center is evenly distributed on the outside that connects matrix with the central axis that connects matrix 1, the outermost of each groups of fins is provided with the fin 21 of a thickening, be equipped with on the fin 21 of the thickening on each groups of fins and be used to install the screw connecting hole 22 that LED lamp pearl is installed aluminium base and light fixture outer cover, each groups of fins 2 be connected matrix 1 and connect, an end that connects matrix 1 is provided with the link that is connected with the lamp holder of LED light fixture.Connecting matrix 1 is a sleeve, groups of fins 2 is provided with 8 groups, each fin 24 in the groups of fins 2 is by connecting skeleton 23 series connection, be provided with external screw thread at the link that connects matrix 1, each fin is a cylinder, the cylinder end face is trapezoidal, be provided with between adjacent two groups of fins at interval, the cavity that wherein connects matrix 1 is a circular cavity, in be provided with a square body cavity that is used to install led drive circuit, side body cavity and circular cavity leave the gap, at an end relative with the link of connection matrix 1 one bottom are installed, and bottom is provided with the gap with being connected between the matrix.The lamp holder 3 of the LED light fixture that is connected with the link that is connected matrix 1 is provided with through hole 31, through hole 31 is provided with a pair of, be oppositely arranged, one end of through hole 31 is towards connecting matrix 1, the other end of through hole 31 is vertically promptly all formed by air convection channel by the upper end of the bottom end that connects matrix 1 to the lamp holder of LED light fixture at heat abstractor like this towards the top of the lamp holder 3 of LED light fixture.From the above, no matter the entire heat dissipation device is longitudinal direction, or horizontal direction all is formed with cross-ventilated passage, so the heat that LED lamp pearl and led drive circuit send can be gone out by heat radiation soon.Wherein connecting matrix is processed by the aluminum material one by the groups of fins that fin is formed by connecting with several.Certainly the entire heat dissipation device both can be polygon or other shape on the whole, and the part fin between every adjacent two groups of fins also can directly connect all within protection domain of the present utility model.

Claims

1. the heat abstractor of a LED light fixture, it is characterized in that: the heat abstractor of described LED light fixture comprises connection matrix and several groups of fins that are formed by connecting by fin, each groups of fins is that the center is evenly distributed on the outside that connects matrix with the central axis that connects matrix, the outermost of each groups of fins is provided with the fin of a thickening, be equipped with on the fin of the thickening on each groups of fins and be used to install the screw connecting hole that LED lamp pearl is installed aluminium base and light fixture outer cover, each groups of fins be connected matrix and connect, an end that connects matrix is provided with the link that is connected with the lamp holder of LED light fixture.

2. the heat abstractor of LED light fixture according to claim 1, it is characterized in that: described connection matrix is a sleeve, groups of fins is provided with 8, each fin in the groups of fins is by connecting the skeleton series connection, be provided with external screw thread at the link that connects matrix, each fin is a cylinder, and the cylinder end face is trapezoidal.

3. the heat abstractor of LED light fixture according to claim 2 is characterized in that: be provided with between described adjacent two groups of fins at interval.

4. the heat abstractor of LED light fixture according to claim 2, it is characterized in that: the cavity of described connection matrix is a circular cavity, in be provided with a square body cavity that is used to install led drive circuit, at an end relative with the link that connects matrix one bottom is installed, bottom is provided with the gap with being connected between the matrix.

5. according to claim 1 or 2 or the heat abstractor of 3 or 4 described LED light fixtures, it is characterized in that: described connection matrix and several are processed by the aluminum material one by the groups of fins that fin is formed by connecting.

6. the heat abstractor of LED light fixture according to claim 5, it is characterized in that: the lamp holder of the described LED light fixture that is connected with the link that is connected matrix is provided with a through hole, one end of through hole is towards connecting matrix, and the other end of through hole is towards the top of the lamp holder of LED light fixture.