CN201412808Y - Heat radiation structure of LED lamp - Google Patents

Abstract

The utility model discloses a heat radiation structure of LED lamp, including the base plate and be fixed in the positive LED emitting diode of base plate, LED emitting diode have a plurality ofly and constitute the LED array, the base plate back is fixed with the heat pipe, the parallel multi-disc heat radiation fins that is provided with on the heat pipe, the heat pipe include the canned paragraph that is located above the base plate and outstanding section that stretches out to one side in the base plate, heat radiation fins overlaps on outstanding section; the utility model discloses heat radiation fins is located the base plate side, separately with the LED heat source, can not carry out the secondary heating to it, has improved radiating efficiency, and heat radiation fins is convenient for base plate and LED and carries out waterproof dustproof sealing and ventilation to and aluminum plate and heat radiation fins's self-cleaning.

Description

Heat dissipation structure of an LED lamp

technical field

The utility model relates to an illuminating lamp, in particular to a heat dissipation structure which integrates and uses LEDs as an illuminating light source.

Background technique

In recent years, LED lights have achieved rapid development and are gradually entering the field of general lighting. Compared with traditional incandescent tungsten bulbs and fluorescent lamps, LED lamps have the advantages of small size, low calorific value, and low power consumption, and can be started at low voltage and low current, with fast response speed, high-frequency operation, and long service life. Therefore, it is called "green lighting source". Existing LED street lamps mostly include dozens of LED light-emitting diodes or more. When working, the total heat generated by these LED light-emitting diodes is very large. The heat is gathered in a small space and cannot be dissipated quickly. When the temperature reaches equilibrium, the temperature of the LED is very high, which causes the LED illumination to attenuate and rapidly age, and the service life is greatly shortened.

Utility model content

The purpose of the utility model is to provide a heat dissipation structure of an LED lamp with good heat dissipation performance.

The technical solution adopted by the utility model to solve the technical problem is: a heat dissipation structure of an LED lamp, including a substrate and LED light-emitting diodes fixed on the front of the substrate. There are multiple LED light-emitting diodes and form an LED array. A heat pipe is fixed, and a plurality of cooling fins are arranged in parallel on the heat pipe.

Wherein, the heat pipe includes a fixed section located on the base plate and a protruding section protruding from the base plate and extending to one side, and the heat dissipation fins are placed on the protruding section. Alternatively, the heat pipe includes a fixed section located on the substrate and protruding sections located on both sides of the fixed section respectively extending out of the substrate, and the heat dissipation fins are sleeved on the protruding section.

Wherein, the protruding section forms a certain angle with the fixed section and extends upward. Alternatively, the protruding section is parallel to the fixed section, and a vertical connecting section is connected between the protruding section and the fixed section.

In addition, the base plate is an aluminum plate, and the heat pipe is a copper pipe.

The beneficial effects of the utility model are: the heat dissipation fins are located on the side of the substrate, separated from the LED heat source, and will not be reheated, improving the efficiency of heat dissipation, and the heat dissipation fins are convenient for the substrate and the LED to be waterproof, dustproof, and ventilated. And the self-cleaning of aluminum plate and cooling fins.

Illustration

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

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

Fig. 2 is the structural representation of the second embodiment of the utility model;

Fig. 3 is a schematic structural view of the third embodiment of the utility model;

Fig. 4 is a schematic structural view of the fourth embodiment of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

The utility model discloses a heat dissipation structure of an LED lamp, which comprises a PCB circuit substrate 1, a plurality of LED light-emitting diodes are fixedly welded on the front of the substrate 1, these LED light-emitting diodes form an LED array, and a heat pipe 2 is fixed on the back of the substrate 1. A plurality of cooling fins 3 are arranged in parallel on the 2, the substrate 1 is an aluminum plate, and the heat pipe 2 is a copper pipe.

As a first embodiment, as shown in FIG. 1 , the heat pipe 2 includes a fixed section 21 located on the substrate 1 and a protruding section 22 protruding from the substrate 1 to one side, and the fixed section 21 and the protruding section 22 are integrated. The protruding section 22 forms a certain angle with the fixed section 21 and extends upward, and the heat dissipation fins 3 are placed on the protruding section 22, which is a single-sided flying wing structure.

As a second embodiment, as shown in FIG. 2 , the heat pipe 2 includes a fixed section 21 located on the substrate 1 and protruding sections 22 respectively extending out of the substrate 1 on both sides of the fixed section 21. The fixed section 21 and the protruding section The section 22 is an integral structure, the protruding section 22 forms a certain angle with the fixed section 21, and extends upward, and the heat dissipation fins 3 are placed on the protruding section 22, that is, the double-sided flying wing structure

As a third embodiment, as shown in FIG. 3 , the heat pipe 2 includes a fixed section 21 located on the base plate 1 and a protruding section 22 protruding from the base plate 1 and extending to one side. The protruding section 22 and the fixed section 21 parallel, a vertical connecting section 33 is connected between the protruding section 22 and the fixed section 21, the fixed section 21, the protruding section 22 and the connecting section 33 are of an integrated structure, and the heat dissipation fins 3 are set on the protruding section 22 , that is, the unilateral flying wing structure.

As a fourth embodiment, as shown in FIG. 4 , the heat pipe 2 includes a fixed section 21 located on the substrate 1 and protruding sections 22 located on both sides of the fixed section 21 and extending outward from the substrate 1 respectively. 22 is parallel to the fixed section 21, and a vertical connection section 33 is connected between the protruding section 22 and the fixed section 21. The fixed section 21, the protruding section 22 and the connecting section 33 are of an integrated structure, and the heat dissipation fins 3 are set on On the protruding section 22, that is, the bilateral flying wing structure.

When the utility model is used, the heat emitted by the LED lamp is conducted to the aluminum plate, and then to the left and right heat dissipation fins through the heat pipe, and the heat dissipation fins are separated from the heat source, so that the heat source will not be heated twice, and the heat dissipation efficiency is improved; The flakes are vertically located on the left and right sides of the aluminum plate, which is convenient for waterproof and dustproof sealing of the LED and the aluminum sheet without affecting heat dissipation; since there is sufficient heat dissipation space on the upper and lower sides of the heat dissipation fins, and they extend to both sides and are exposed, It is convenient for ventilation, and the self-cleaning of the aluminum plate and cooling fins can help cleaning with the help of the wind formed by the air flow.

What is described above is only the preferred embodiment of the present utility model, and it should be pointed out that for those of ordinary skill in the art, without departing from the premise of the inventive concept of the present invention, some deformations and improvements can also be made, and these all belong to Protection scope of the present utility model.

Claims (6)

1, a kind of radiator structure of LED lamp, comprise substrate (1) and be fixed in the positive LED light emitting diode of substrate (1), described LED light emitting diode is by a plurality of and form led array, it is characterized in that: substrate (1) back side is fixed with heat pipe (2), is arranged with multi-disc radiating fin (3) on the heat pipe (2) in parallel.

2, the radiator structure of a kind of LED lamp according to claim 1, it is characterized in that, described heat pipe (2) comprises the canned paragraph (21) that is positioned on the substrate (1) and protrudes in the nose section (22) that substrate (1) extends toward a side that described radiating fin (3) is placed on the nose section (22).

3, the radiator structure of a kind of LED lamp according to claim 1, it is characterized in that, described heat pipe (2) comprises the canned paragraph (21) that is positioned on the substrate (1) and is positioned at canned paragraph (21) both sides respectively toward the outer nose section (22) that extends of substrate (1) that described radiating fin (3) is placed on (22) on the nose section.

According to the radiator structure of claim 2 or 3 described a kind of LED lamps, it is characterized in that 4, described nose section (22) is in a certain angle with canned paragraph (21), and extend toward the top.

According to the radiator structure of claim 2 or 3 described a kind of LED lamps, it is characterized in that 5, described nose section (22) is parallel with canned paragraph (21), be connected with vertical linkage section (33) between nose section (22) and the canned paragraph (21).

According to the radiator structure of claim 1 or 2 or 3 described a kind of LED lamps, it is characterized in that 6, described substrate (1) is an aluminium sheet, described heat pipe (2) is a copper pipe.

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