CN202165935U - An LED advertising lamp with improved heat dissipation - Google Patents

Abstract

The utility model discloses a LED advertising lamp with improved heat dissipation, which comprises a shell, an aluminum radiator, an LED lamp panel and an aluminum structure layer, wherein the LED lamp panel is made of an aluminum nitride structure layer as a base material, the aluminum radiator is arranged in the inner cavity of the shell, a plurality of LED lamps are arranged in front of the LED lamp panel, each LED lamp is electrically connected with a conductive circuit arranged in front of the LED lamp panel, the LED lamp panel is arranged in the inner cavity of the shell, the back of LED lamp plate is fixed in the aluminium structural layer, the aluminium structural layer is fixed in the aluminium radiator, the LED lamp plate chooses for use the LED lamp plate of being made as the substrate by the aluminium nitride structural layer and chooses for use the aluminium structural layer as the conduction medium, can go out the heat conduction of LED lamp fast, conduct the aluminium radiator with the heat that the LED lamp plate during operation produced rapidly, moreover, the steam generator is simple in structure, therefore, the steam generator is low in cost, the radiating rate is fast, the radiating effect is good, the luminous efficiency of the LED lamp of LED lamp plate is improved, and the service life of the LED advertising light.

Description

An LED advertising lamp with improved heat dissipation

technical field

The utility model relates to the technical field of advertising lamps, in particular to an LED advertising lamp with improved heat dissipation.

Background technique

In the prior art, LED advertising lamps are used to provide lighting for billboards, etc., and LED advertising lamps include housings, LED lamp groups and aluminum radiators, and LED lamp groups include several LED lamps and a printed circuit with an epoxy board as the base material board, the LED lamp is welded on the printed circuit board, the LED lamp group and the aluminum radiator are fixed in the casing, and the LED lamp group is attached to the aluminum radiator. However, the power of LED advertising lights is relatively large. When the LED advertising lights are working, the heat generated by the LED lights is more, and the temperature of the LED lights is higher. Therefore, the LED advertising lights need to be equipped with radiators and other heat dissipation devices to reduce the temperature of the LED lights. However, in the prior art, the LED advertising lamp is only pasted with an aluminum heat sink on the back of the LED lamp group. Although the aluminum heat sink has a certain heat dissipation effect, the heat conduction speed of the aluminum heat sink is relatively slow, and the heat dissipation speed still cannot meet the requirements of the LED lamp. The heat dissipation requirements of advertising lights, the heat dissipation effect of LED advertising lights is still not ideal, and the temperature of the LED lamp group of LED advertising lights is still high, so it is necessary to improve.

Contents of the invention

Aiming at the deficiencies in the prior art, the purpose of this utility model is to provide an LED advertising lamp with improved heat dissipation, which has a simple structure, low cost, fast heat dissipation, good heat dissipation effect, improves the luminous efficiency of the LED lamp, and prolongs the length of the LED advertisement lamp. service life.

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

An LED advertising lamp with improved heat dissipation, including a housing, an aluminum radiator, an LED lamp board made of an aluminum nitride structural layer as a base material and an aluminum structural layer, and the aluminum radiator is arranged in the inner cavity of the housing. The front of the board is provided with a number of LED lamps, each LED lamp is electrically connected to the conductive circuit provided on the front of the LED lamp board, the LED lamp board is arranged in the inner cavity of the shell, the back of the LED lamp board is fixed on the aluminum structure layer, and the aluminum structure The layer is fixed to the aluminum heat sink.

The aluminum nitride structural layer and the aluminum structural layer are combined to form an LED light board.

The back side of the LED light board is provided with a flat part, and the front surface of the aluminum structure layer is pasted on the flat part of the LED light board.

The top of the aluminum radiator is provided with a flat-attached part, the rear surface of the aluminum structure layer is attached to the flat-attached part of the aluminum radiator, and the bottom of the aluminum radiator is provided with several fins.

The aluminum structure layer is embedded on the top of the aluminum radiator.

A light-transmitting lens is arranged on the front of the LED advertisement lamp, and the light-transmitting lens fixes the housing.

A power module is arranged inside the LED advertisement lamp, and the power module is electrically connected to the LED lamp board.

After adopting the above-mentioned structure, the utility model has the advantages compared with the prior art: the LED lamp panel of the utility model at least selects the LED lamp panel made of the aluminum nitride structure layer as the base material, and the LED lamp panel has good The thermal conductivity can quickly conduct the heat of the LED lamp. In addition, the utility model adds an aluminum structure layer as the first order heat conduction medium. The aluminum structure layer has a high thermal conductivity, and the heat conduction speed is fast. The generated heat is conducted to the aluminum heat sink, and the heat accumulated in the LED lamp board is very small, which ensures that the LED lamp board has a lower temperature. The luminous efficiency of the LED lamp prolongs the service life of the LED advertising lamp of the LED lamp board.

Description of drawings

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

Fig. 1 is a schematic structural view of the LED advertising lamp of the present invention.

FIG. 2 is an enlarged cross-sectional view of the AA section in FIG. 1 .

Fig. 3 is a schematic exploded view of the LED advertising lamp of the present invention.

Fig. 4 is a schematic diagram of the assembly of the LED lamp panel, the aluminum structure layer and the aluminum radiator of the present invention.

In the figure: 1, shell 2, LED light board 3, aluminum heat sink 4, LED light 5, aluminum structure layer 6, wings 7, light-transmitting lens 8, power supply module.

Detailed ways

The following descriptions are only preferred embodiments of the present utility model, and do not therefore limit the protection scope of the present utility model.

The embodiment, see Fig. 1 to Fig. 4 shows: a kind of LED advertisement lamp that improves heat dissipation, comprises shell 1, LED lamp board 2 and aluminum radiator 3, and the front of LED lamp board 2 is provided with several LED lamps 4, and LED lamp The plate 2 is arranged in the inner cavity of the housing 1 , and the front of the LED advertising light is provided with a light-transmitting lens 7 , and the light-transmitting lens 7 fixes the housing 1 . A power module 8 is arranged inside the LED advertising lamp, and the power module 8 is electrically connected to the LED lamp board 2 .

The LED advertising light also includes an LED light board 2 and an aluminum structure layer 5 made of an aluminum nitride structure layer as a base material. Aluminum nitride is ALN.

In a preferred embodiment, the LED lamp board 2 only selects the aluminum nitride structure layer as the base material of the LED lamp board 2 .

In another preferred embodiment, the LED lamp board 2 selects the aluminum nitride structural layer and the aluminum structural layer 5 that are integrated up and down as the base material of the LED lamp board 2 .

The front of the LED lamp board 2 is provided with several LED lamps 4, and each LED lamp 4 is electrically connected to the conductive circuit arranged on the front of the LED lamp board 2. The utility model takes the direction shown in FIG. 2 as a reference, and the LED lamp board 2 is arranged on In the inner cavity of the shell 1, compared with the printed circuit board in the prior art that uses the epoxy board as the base material, the heat conduction speed of the LED lamp board 2 made of the aluminum nitride structure layer as the base material in the utility model is faster. Faster, better thermal conductivity, can quickly conduct the heat of the LED lamp and the conductive circuit through the base material of the LED lamp board 2, rapidly reduce the temperature of the LED lamp, and have a fast heat dissipation speed.

The LED advertising light also includes an aluminum structure layer 5 , the back of the LED lamp board 2 is fixed to the aluminum structure layer 5 , and the aluminum structure layer 5 is fixed to the aluminum heat sink 3 . The aluminum structure layer 5 is a sheet made of aluminum or an aluminum alloy material, and the aluminum structure layer 5 has a higher thermal conductivity and higher thermal conductivity. The utility model uses the aluminum structure layer 5 as the first-order heat conduction medium to increase the heat conduction speed and quickly reduce the temperature of the LED lamp group, and uses the aluminum radiator 3 as the second-order heat conduction medium to reduce the usage of the aluminum structure layer 5 and reduce the cost , the overall thermal conductivity is better.

The back side of the LED light board 2 is provided with a flat portion, and the front surface of the aluminum structure layer 5 is attached to the flat portion of the LED light board 2 . The aluminum structure layer 5 is in close contact with the LED light board 2, and the contact area is large, which increases the heat conduction speed and heat dissipation efficiency.

The top of the aluminum radiator 3 is provided with a flat portion, the rear surface of the aluminum structure layer 5 is attached to the flat portion, and the bottom of the aluminum radiator 3 is provided with several fins 6 . The aluminum structure layer 5 is in close contact with the aluminum heat sink 32, and the contact area is large, which improves the heat conduction speed and heat dissipation efficiency.

The aluminum structure layer 5 is embedded on the top of the aluminum radiator 3 .

The aluminum structure layer 5 has a high thermal conductivity, and the heat conduction speed is fast, and quickly conducts the heat generated by the LED light board 2 to the aluminum radiator 3, and the heat accumulated in the LED light board 2 is very small, ensuring that the LED light board 2 has a relatively high temperature. Low temperature, the utility model has the advantages of simple structure, low cost, fast heat dissipation and good heat dissipation effect, which can improve the luminous efficiency of the LED lights 4 of the LED light board 2 and prolong the service life of the LED advertising lights of the LED light board 2 .

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 (7)

1. An LED advertising lamp with improved heat dissipation, comprising a casing (1) and an aluminum heat sink (3), the aluminum heat sink (3) is arranged in the inner cavity of the casing (1), and it is characterized in that: it also includes at least nitrogen The LED light board (2) and the aluminum structure layer (5) made of the aluminum structure layer as the base material, a number of LED lights (4) are arranged in front of the LED light board (2), and each LED light (4) is electrically connected to the The conductive circuit arranged in front of the LED light board (2), the LED light board (2) is arranged in the inner cavity of the housing (1), the back of the LED light board (2) is fixed on the aluminum structure layer (5), the aluminum structure The layer (5) is fixed to the aluminum heat sink (3). 2. The LED advertising lamp with improved heat dissipation according to claim 1, characterized in that: the aluminum nitride structural layer and the aluminum structural layer (5) are combined into an LED lamp board (2). 3. An LED advertising light with improved heat dissipation according to claim 1, characterized in that: the back of the LED light board (2) is provided with a flat part, and the front surface of the aluminum structure layer (5) is pasted on the The flat part of the LED light board (2). 4. An LED advertising lamp with improved heat dissipation according to claim 1, characterized in that: the top of the aluminum heat sink (3) is provided with a flat part, and the rear surface of the aluminum structure layer (5) is attached to The flat part of the aluminum radiator (3), and the bottom of the aluminum radiator (3) are provided with several fins (6). 5. The LED advertising lamp with improved heat dissipation according to any one of claims 1 to 4, characterized in that: the aluminum structure layer (5) is embedded on the top of the aluminum heat sink (3). 6. An LED advertising lamp with improved heat dissipation according to claim 5, characterized in that: the front of the LED advertising lamp is provided with a transparent lens (7), and the transparent lens (7) fixes the housing (1). 7. An LED advertising lamp with improved heat dissipation according to claim 6, characterized in that: the LED advertising lamp is provided with a power module (8), and the power module (8) is electrically connected to the LED lamp board (2) .

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