CN202082884U - A heat dissipation structure and an LED street lamp using the heat dissipation structure - Google Patents

Abstract

The utility model discloses a heat radiation structure and LED street lamp using the same, belonging to the heat radiation technical field of lamps, the heat radiation structure comprises a heat radiation outer cover and a plurality of heat radiation fins, wherein one side of the heat radiation outer cover is provided with a power supply box mounting seat, the other side of the heat radiation outer cover is provided with a plurality of aluminum substrate mounting positions, and the heat radiation fins are positioned between the power supply box mounting seat and the aluminum substrate mounting positions; a plurality of rows of vent holes which can enable air to flow up and down on the radiating fins are formed between the aluminum substrate mounting positions; and a layer of bright film is laid on the surface of the heat dissipation structure. The multi-row ventilation holes of the utility model can lead the air to circulate up and down, and increase the heat transfer coefficient of the surface of the heat dissipation structure; the surface of the heat dissipation structure is subjected to chemical polishing and anodic oxidation treatment to form a layer of bright film, so that the smoothness of the surface of the heat dissipation structure is effectively improved, the wind resistance is reduced, more heat is taken away by natural wind, meanwhile, the bright film can reflect sunlight in the daytime, and the temperature of the LED street lamp is prevented from rising when the sunlight is directly irradiated.

Description

A heat dissipation structure and an LED street lamp using the heat dissipation structure

technical field

The utility model relates to the technical field of heat dissipation of lamps, in particular to a heat dissipation structure and an LED street lamp using the heat dissipation structure.

Background technique

LED (Light-emitting diode) is widely used in various fields as an energy-saving and efficient light source. However, the heat generated by the LED itself is one of the important factors affecting the service life of the LED. In order to prolong the use of LED street lights Lifespan, LED street lights are equipped with heat sinks, and the heat dissipation performance of the heat sink is the focus of people's general attention.

Aluminum heat sinks are widely used due to their good heat dissipation effect, simple processing method and low cost. Existing radiators are generally made of drawn aluminum and cut into a certain distance. In order to achieve a better heat dissipation effect, people generally increase the convective heat transfer by increasing the heat dissipation area, but blindly increasing the heat dissipation surface area will inevitably lead to heat dissipation. The volume of the device is huge, the material consumption increases, and the production cost is also increased. the

Utility model content

In order to solve the above problems, the utility model provides a heat dissipation structure with simple structure and better heat dissipation effect and an LED street lamp using the heat dissipation structure.

A heat dissipation structure, comprising a heat dissipation cover and a plurality of heat dissipation fins fixedly connected to the heat dissipation cover, one side of the heat dissipation cover is provided with a power supply box mounting seat, and the other side of the heat dissipation cover is provided with a plurality of aluminum substrate installation positions, the The heat dissipation fins are located between the power box installation seat and the aluminum substrate installation position; multiple rows of ventilation holes are provided between the aluminum substrate installation positions to allow air to circulate up and down the heat dissipation fins; the surface of the heat dissipation structure is covered with a layer of light membrane.

Wherein, the heat dissipation outer cover, the heat dissipation fins, the mounting position of the aluminum substrate and the mounting seat of the power box are integrally formed parts.

Wherein, there are four installation positions of the aluminum substrate, and five rows of ventilation holes.

Wherein, the distances between the adjacent heat dissipation fins are equal.

An LED street lamp using a heat dissipation structure. The LED street lamp includes the heat dissipation structure, a power supply box installed on the power supply box installation seat, and an aluminum substrate installed on the aluminum substrate installation location.

Wherein, a sealing ring is provided between the installation position of the aluminum substrate and the aluminum substrate.

Wherein, the power box is provided with a power cover to protect the power box.

Wherein, the LED street lamp further includes a light-transmitting transparent outer cover, the transparent outer cover is installed at the installation position of the aluminum substrate, and the aluminum substrate and the sealing ring are located between the installation position of the aluminum substrate and the transparent outer cover.

Wherein, the heat dissipation structure is also provided with a street lamp installation bracket for fixing the LED street lamp.

The beneficial effects of the utility model are: a heat dissipation structure, including a heat dissipation outer cover and a plurality of heat dissipation fins fixedly connected to the heat dissipation outer cover, one side of the heat dissipation outer cover is provided with a power supply box mounting seat, and the other side of the heat dissipation outer cover is provided with multiple fins. An aluminum substrate installation position, the heat dissipation fins are located between the power box installation seat and the aluminum substrate installation position; multiple rows of ventilation holes are provided between the aluminum substrate installation positions to allow air to circulate up and down the heat dissipation fins; A layer of bright film is laid on the surface of the heat dissipation structure.

An LED street lamp using a heat dissipation structure. The LED street lamp includes the heat dissipation structure, a power supply box installed on the power supply box installation seat, and an aluminum substrate installed on the aluminum substrate installation location.

The multi-row ventilation holes of the utility model allow the air to circulate up and down, increasing the heat transfer coefficient of the heat dissipation structure surface; the surface of the heat dissipation structure is chemically polished and anodized to form a layer of bright film, which effectively improves the smoothness of the heat dissipation structure surface and reduces the heat dissipation. The wind resistance is reduced, so that the natural wind can take away more heat. At the same time, the bright film can also reflect sunlight during the day, so as to prevent the temperature of LED street lights from rising when they are exposed to direct sunlight. This heat dissipation structure has better heat dissipation effect and lower production cost.

Description of drawings

Fig. 1 is a schematic diagram of the heat dissipation structure of the present invention.

FIG. 2 is a schematic diagram of another perspective of FIG. 1 .

Fig. 3 is a schematic diagram of an exploded structure of the LED street lamp of the present invention.

The reference signs are explained as follows:

1—radiation cover; 2—radiation fins;

3—power box installation seat; 4—aluminum substrate installation seat;

5—ventilation hole; 6—street lamp installation bracket;

7—sealing ring; 31—power box;

32—power cover; 41—aluminum substrate;

42—transparent cover.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Referring to Figures 1 to 3, a heat dissipation structure includes a heat dissipation cover 1 and a plurality of heat dissipation fins 2 fixedly connected to the heat dissipation cover 1, a power supply box mounting seat 3 is provided on one side of the heat dissipation cover 1, and a heat dissipation cover 1 is provided on the other. One side is provided with a plurality of aluminum substrate installation positions 4, and the heat dissipation fins 2 are located between the power box installation seat 3 and the aluminum substrate installation positions 4; multiple rows are arranged between the aluminum substrate installation positions 4 to allow the air to Ventilation holes 5 through which the heat dissipation fins 2 circulate up and down; a layer of bright film is laid on the surface of the heat dissipation structure.

The heat dissipation structure of the utility model adopts the form of fins, and in the heat dissipation structure of the same volume, the heat dissipation area can reach the maximum; multiple rows of ventilation holes 5 are arranged to ensure that the air can circulate up and down, which increases the heat transfer coefficient of the surface of the heat dissipation structure, and improves the heat dissipation. Better, it delays the color fading of LED street lights and prolongs the service life of the lamps; in addition, the surface of the heat dissipation structure is chemically polished and anodized to form a layer of bright film, which effectively improves the surface finish and makes the heat dissipation structure smooth Like a mirror, a good finish can effectively reduce wind resistance and allow the natural wind to take away more heat. It can also effectively reflect sunlight during the day and avoid shortening the service life of LED street lights due to temperature rise when exposed to direct sunlight.

Wherein, the heat dissipation cover 1 , the heat dissipation fins 2 , the aluminum substrate mounting position 4 and the power box mounting seat 3 are integrally formed parts.

Wherein, there are four installation positions 4 of the aluminum substrate, and five rows of ventilation holes 5 .

Wherein, the distances between the adjacent cooling fins 2 are equal.

An LED street lamp using a heat dissipation structure, the LED street lamp includes the heat dissipation structure, a power supply box 31 installed on the power supply box installation seat 3 , and an aluminum substrate 41 installed on the aluminum substrate installation location 4 .

Wherein, a sealing ring 7 is provided between the aluminum substrate mounting position 4 and the aluminum substrate 41 .

Wherein, the power supply box 31 is provided with a power supply cover 32 to protect the power supply box 31 .

Wherein, the LED street lamp also includes a transparent cover 42 that can transmit light, and the transparent cover 42 is installed on the aluminum substrate installation position 4, and the aluminum substrate 41 and the sealing ring 7 are located between the aluminum substrate installation position 4 and the transparent cover 42 . The transparent cover 42 has the functions of dustproof, waterproof, anti-corrosion, etc., and effectively protects the aluminum substrate 41; the design of the sealing ring 7 further prevents external moisture from penetrating into the transparent cover 42 and damaging the aluminum substrate 41.

The heat dissipation structure is also provided with a street lamp mounting bracket 6 for fixing the LED street lamp.

The technical solution of the utility model mainly achieves the effect of increasing convective heat transfer by increasing the heat transfer coefficient of the surface of the heat dissipation structure and increasing the heat exchange area, delaying the color decay of the LED lamp and prolonging the service life of the lamp.

The above content is only a preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation and scope of application. The content of this specification should not be understood as Limitations on the Invention.

Claims (9)

1. A heat dissipation structure, comprising a heat dissipation cover and a plurality of heat dissipation fins fixedly connected to the heat dissipation cover, characterized in that: one side of the heat dissipation cover is provided with a power supply box mounting seat, and the other side of the heat dissipation cover is provided with a plurality of aluminum fins. The substrate installation position, the heat dissipation fins are located between the power box installation seat and the aluminum substrate installation position; multiple rows of ventilation holes are provided between the aluminum substrate installation positions to allow air to circulate up and down the heat dissipation fins; the heat dissipation A bright film is laid on the surface of the structure. 2 . The heat dissipation structure according to claim 1 , wherein the heat dissipation cover, the heat dissipation fins, the mounting position of the aluminum substrate and the mounting seat of the power box are integrally formed. 3 . 3 . The heat dissipation structure according to claim 2 , wherein there are four installation positions of the aluminum substrate, and five rows of ventilation holes. 4 . 4. The heat dissipation structure according to claim 3, wherein the distances between the adjacent heat dissipation fins are equal. 5. An LED street lamp using the heat dissipation structure according to any one of claims 1 to 4, characterized in that: the LED street lamp comprises the heat dissipation structure, a power supply box installed on the power supply box mounting base, and an aluminum Aluminum substrate on the substrate mounting position. 6 . The LED street lamp using a heat dissipation structure according to claim 5 , wherein a sealing ring is provided between the mounting position of the aluminum substrate and the aluminum substrate. 7 . 7. An LED street lamp using a heat dissipation structure according to claim 6, wherein the power supply box is provided with a power supply cover to protect the power supply box. 8. An LED street lamp using a heat dissipation structure according to claim 7, characterized in that: said LED street lamp also includes a transparent cover that can transmit light, and said transparent cover is installed at the installation position of the aluminum substrate, and said aluminum substrate and the sealing ring are located between the mounting position of the aluminum substrate and the transparent outer cover. 9. An LED street lamp using a heat dissipation structure according to claim 8, wherein the heat dissipation structure is also provided with a street lamp mounting bracket for fixing the LED street lamp.

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