CN201041334Y - Heat radiator for high power LED lamp - Google Patents

Abstract

A heat sink for high power LED lamp comprises a heat conducting lamp holder made of high heat conducting material and having a flat smooth surface for fixing LED, a heat conducting body and heat radiating fins; the heat conduction system is made of high heat conduction material and is used for connecting the heat conduction lamp holder and the heat dissipation fins; the radiating fins are formed by a plurality of high heat conducting materials in a radiating arrangement, and the radiating fins are in a hollow and non-closed connection structure close to the radiating center end, so that the radiating device of the high-power light emitting diode lamp without direction limitation, natural rising of hot air and good convection is formed.

Description

Heat dissipation device for high-power light-emitting diode lamps

technical field

The utility model relates to a heat dissipation device for a high-power light-emitting diode lamp, in particular to a heat dissipation device arranged radially by a plurality of heat dissipation fins, and connected through the air near the central end of the radiation without sealing; according to the principle of natural rising of hot air, the Cooling device with no direction restriction and good natural convection of heat.

Background technique

Recently, high-power light-emitting diodes have been paid more and more attention to energy-saving applications such as lighting, traffic lights, landscape lights, and backlights. However, they generate high heat. To make products with high brightness and long life, they must have good heat dissipation devices. .

Existing heat dissipation devices mainly use metal sheets to form heat dissipation fins, and then use fans to blow the air between the fins to take away the heat; however, most of the applications of high-power LED lamps are difficult due to noise, life, energy saving, and volume. Considering the above, it has become a consensus to abandon the fan; and without the cooling fins blown by the fan, the connection between the fins (or the relationship between the installation direction and angle) often hinders the natural upward convection path of hot air. Referring to Fig. 6, the fins are arranged in parallel, and there is a heat conductor connecting them through the middle. When the installation direction angle makes the fins horizontal, as indicated by the arrow in Fig. 7, the natural rise of hot air between the fins will be hindered. Referring to Figure 8 again, the fins are closed and connected by the central end of the radiation. When the angle of the installation direction makes the central axis of the radiation tend to be horizontal, as indicated by the arrow in Figure 9, the hot air between the lower half of the fins will not be able to rise naturally .

Contents of the invention

The purpose of the utility model is to solve the problem that the hot air in the heat dissipation device cannot rise naturally and the heat dissipation performance is not good.

The heat dissipation device of the high-power light-emitting diode lamp of the utility model includes a heat-conducting lamp holder, a heat-conducting body and a group of heat-dissipating fins; the heat-conducting lamp holder is made of high heat-conducting material and has a flat and smooth surface to fix the light-emitting diode ; The heat conduction body is made of high heat conduction material, and is used to connect the heat conduction lamp holder and the heat dissipation fin.

The composition of the cooling fins is composed of a plurality of sheet-like high thermal conductivity materials radially arranged, and each cooling fin near the center of the radiation adopts a transparent, non-closed connection structure, so that according to the principle of natural rising of hot air, the installation can be achieved. It is a cooling device for high-power LED lamps with no direction angle restriction, hot air rising naturally, and good convection.

Description of drawings

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a perspective view of the utility model.

Fig. 2 is a side view of the utility model.

Fig. 3 is a bottom view of the utility model.

Fig. 4 is a sectional view of the utility model.

Fig. 4A is a schematic diagram of an embodiment of the present invention.

Fig. 5 is a schematic diagram of the hot air rising of the utility model.

FIG. 6 is a schematic perspective view of a conventional heat dissipation device.

Fig. 7 is a schematic diagram of the hot air being blocked from rising in the conventional heat dissipation device.

FIG. 8 is a schematic perspective view of another conventional heat dissipation device.

FIG. 9 is a schematic diagram of another conventional cooling device where hot air rises and is blocked.

Explanation of main component symbols

10 LED lights

11 heat conduction lamp holder

12 heat conductor

13 cooling fins

14 heat pipe

Detailed ways

Please refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the heat dissipation device of the high-power light-emitting diode lamp provided by the utility model is mainly composed of a light-emitting diode lamp 10, a heat-conducting lamp holder 11, a heat-conducting body 12 and cooling fins 13, wherein the heat-conducting lamp holder 11 is made of high heat-conducting materials such as copper, aluminum, zinc, ceramics, etc., and has a flat and smooth surface, which can be attached to the heat-conducting base of the high-power light-emitting diode lamp 10 with heat-conducting glue or tin. In addition, the heat conductor 12 is made of high thermal conductivity material, and is mainly used to connect the heat conduction lamp holder 11 and the heat dissipation fins 13; and the heat dissipation fins 13 are made of a plurality of sheets of high heat conductivity materials radially arranged, And each heat dissipation fin 13 adopts a hollow, non-closed connection structure near the radial central end; moreover, please refer to FIG.

When the radiation center axis formed by the cooling fins 13 is in a vertical vertical state, the hot air between the cooling fins 13 will naturally rise without hindrance; and when the radiation center axis is in a horizontal state, the flow direction of the hot air will naturally rise as shown in Figure 5 Therefore, the composition and installation of the heat dissipation fins 13 have no direction restriction, and the heat dissipation device of the high-power LED lamp provided by the utility model can achieve the purpose of making the hot air naturally rise and convect well.

In addition, the heat-conducting lamp holder, heat-conducting body and cooling fins of the present invention can be integrally formed by hot die-casting; the device of the present invention can be a small unit module, or multiple unit modules can be composed Larger heat sink.

The above detailed description is only a specific description of one feasible embodiment of the utility model, which is not intended to limit the patent scope of the utility model, any equivalent implementation or change that does not depart from the essential scope of the utility model, should be included in the patent scope of this case.

Claims (4)

1. the heat abstractor of a High Power LED lamp is characterized in that, comprising:

One heat conduction lamp socket, this heat conduction lamp socket have a flat-satin face with fixing light emitting diode;

One heat conductor, this heat conductor is used for connecting heat conduction lamp socket and radiating fin; And

One radiating fin, this radiating fin are to be arranged by the highly heat-conductive material radiation of most sheets to form, and it is taked sky, do not have the structure that sealing connects near the emission center end.

2. the heat abstractor of High Power LED lamp as claimed in claim 1 is characterized in that, described heat conduction lamp socket, heat conductor and radiating fin are one-body molded in the injection moulding mode.

3. the heat abstractor of High Power LED lamp as claimed in claim 1 is characterized in that, described heat abstractor comprises at least one unit module.

4. the heat abstractor of High Power LED lamp as claimed in claim 1 is characterized in that, can link by a heat pipe between described heat conductor and the heat conduction lamp socket.

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