CN210136679U - LED display screen using semiconductor refrigerating sheet for heat dissipation - Google Patents

Abstract

The utility model discloses an LED display screen radiating by using semiconductor refrigeration pieces, a plurality of slots are arranged on the top plane of an installation shell, an LED module is fixed at the position of each slot, one LED module is sealed correspondingly with one slot, a plurality of semiconductor refrigeration pieces are arranged in the inner cavity of the installation shell, the heating surface of each semiconductor refrigeration piece is fixed on the bottom plane of the inner cavity of the installation shell, the refrigeration surface of each semiconductor refrigeration piece is arranged towards the LED module, and heat-radiating silicone grease is coated between each semiconductor refrigeration piece and the installation shell; the end face of the mounting shell is provided with a wire arranging hole, and the conducting wires on the semiconductor refrigeration piece are discharged out of the mounting shell through the wire arranging hole. The utility model discloses can guarantee to have good heat-sinking capability under the airtight circumstances of the screen body, make the screen body have higher protection level. The utility model discloses a semiconductor refrigeration piece heat dissipation, the cold side of semiconductor refrigeration piece is towards the LED module to effectively reduce the inside temperature of LED display screen.

Description

A kind of LED display screen using semiconductor refrigeration sheet to dissipate heat

Technical field:

The utility model relates to an LED display screen which uses a semiconductor refrigerating sheet to dissipate heat.

Background technique:

With the continuous development of science and technology, LED display is widely used in many fields such as information release, advertising, traffic guidance, etc., and has become an indispensable part of daily life. However, in the current application of LED outdoor products, the screen body has a hole in the casing for heat dissipation, resulting in a low protection level of the screen body and a low heat dissipation efficiency. Therefore, the technology that greatly improves the protection level of the screen and can ensure the heat dissipation efficiency of the screen is bound to have a profound impact in the industry.

Invention content:

The utility model provides an LED display screen which uses a semiconductor refrigeration sheet to dissipate heat in order to solve the problems existing in the above-mentioned prior art.

The technical scheme adopted by the utility model is as follows: an LED display screen using a semiconductor refrigerating sheet for heat dissipation, comprising an LED module, a mounting shell and a semiconductor refrigerating sheet with a heating surface and a cooling surface, and a top plane of the mounting shell is provided with There are several slot holes, an LED module is fixed at the position of each slot hole, and one LED module corresponds to a slot hole, and several semiconductor refrigeration chips are arranged in the inner cavity of the installation shell, and the semiconductor refrigeration chips The heating surface is fixed on the bottom plane of the inner cavity of the installation shell, the cooling surface of the semiconductor refrigeration sheet is arranged towards the LED module, and heat dissipation silicone grease is applied between the semiconductor refrigeration sheet and the installation shell; Wire holes, the wires on the semiconductor refrigeration chip are discharged out of the installation shell through the wire holes.

Further, the installation case includes an upper case and a bottom cover heat dissipation plate, the upper case is a rectangular structure with an open bottom end, the bottom cover heat dissipation plate is fixed on the upper case, and the bottom cover heat dissipation plate connects the upper case. The bottom opening of the body is closed, the slot hole is opened on the top surface of the upper shell, and the semiconductor refrigeration chip is fixedly connected to the inner end surface of the heat dissipation plate of the bottom cover.

Further, a plurality of heat dissipation teeth are provided on the outer end surface of the bottom cover heat dissipation plate.

Further, a heat-dissipating plate sealing strip is arranged between the upper casing and the heat-dissipating plate of the bottom cover.

Further, a module sealing strip is arranged between each LED module and the mounting shell.

Further, a waterproof connector is fixed on the cable hole of the installation shell.

The utility model has the following beneficial effects:

The utility model can ensure that the screen body has a good heat dissipation capacity under the condition of airtightness, so that the screen body has a higher protection level. The utility model adopts the semiconductor refrigerating sheet to dissipate heat, and the cold surface of the semiconductor refrigerating sheet faces the LED module, thereby effectively reducing the internal temperature of the LED display screen.

Description of drawings:

Figure 1 is a structural diagram of the utility model.

Figure 2 is a partial enlarged view of the utility model.

FIG. 3 is a structural diagram of the semiconductor refrigeration sheet on the bottom cover heat sink in the present invention.

Detailed ways:

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

As shown in FIGS. 1 to 3 , an LED display screen of the present invention using a semiconductor cooling sheet for heat dissipation includes an LED module 1 , a mounting shell 2 and a semiconductor cooling sheet 3 having a heating surface and a cooling surface. At the top of the mounting shell 2 A plurality of slot holes are arranged on the plane, and an LED module 1 is fixed at the position of each slot hole, and one LED module 1 correspondingly seals one slot hole. Several semiconductor refrigeration chips 3 are arranged in the inner cavity of the installation shell 2, and the heating surface of the semiconductor refrigeration chips 3 is fixed on the bottom plane of the inner cavity of the installation shell 2, and the cooling surface of the semiconductor refrigeration chips 3 is arranged towards the LED module 1, Heat-dissipating silicone grease is applied between the semiconductor cooling chip 3 and the mounting shell 2 . The end face of the mounting shell 2 is provided with a wiring hole, and the wires on the semiconductor refrigeration chip 3 are discharged out of the mounting shell 2 through the wiring hole.

The bottom surface of the mounting shell 2 in the present invention is a detachable structure, and its structure is specifically: the mounting shell 2 includes an upper shell 21 and a bottom cover heat dissipation plate 22, the upper shell 21 is a rectangular structure with an open bottom end, and the bottom cover The heat dissipation plate 22 is fixed on the upper casing 21, and the bottom cover heat dissipation plate 22 closes the bottom opening of the upper casing 21, the slot is opened on the top surface of the upper casing 21, and the semiconductor refrigeration chip 3 is fixedly connected to the bottom cover to dissipate heat. on the inner end face of the plate 22 .

A plurality of heat dissipation teeth 23 are provided on the outer end surface of the heat dissipation plate 22 of the bottom cover, and the heat dissipation teeth 23 can increase the heat dissipation area.

In order to ensure the airtightness between the upper casing 21 and the heat dissipation plate 22 of the bottom cover, a heat dissipation plate sealing strip is provided between the upper casing 21 and the heat dissipation plate 22 of the bottom cover.

In order to ensure the sealing between the LED module 1 and the installation shell 2 , a module sealing strip 4 is arranged between each LED module 1 and the installation shell 2 .

A waterproof connector 6 is fixed on the cable hole of the installation shell 2 , and the wires on the semiconductor refrigeration chip 3 are discharged out of the installation shell 2 through the waterproof connector 6 .

The utility model can ensure that the screen body has a good heat dissipation capacity under the condition of airtightness, so that the screen body has a higher protection level. The utility model adopts the semiconductor refrigerating sheet to dissipate heat, and the cold surface of the semiconductor refrigerating sheet faces the LED module, thereby effectively reducing the internal temperature of the LED display screen.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, some improvements can be made without departing from the principles of the present invention, and these improvements should also be regarded as the present invention. The scope of protection of the utility model.

Claims (6)

1. The utility model provides an use radiating LED display screen of semiconductor refrigeration piece which characterized in that: the LED cooling structure comprises an LED module (1), an installation shell (2) and a semiconductor cooling piece (3) with a heating surface and a cooling surface, wherein a plurality of slots are formed in the top plane of the installation shell (2), the LED module (1) is fixed at the position of each slot, one LED module (1) is correspondingly sealed with one slot, a plurality of semiconductor cooling pieces (3) are arranged in the inner cavity of the installation shell (2), the heating surface of each semiconductor cooling piece (3) is fixed on the bottom plane of the inner cavity of the installation shell (2), the cooling surface of each semiconductor cooling piece (3) faces towards the LED module (1), and heat dissipation silicone grease is coated between each semiconductor cooling piece (3) and the installation shell (2); the end face of the mounting shell (2) is provided with a wire arranging hole, and the conducting wires on the semiconductor refrigeration piece (3) are discharged out of the mounting shell (2) through the wire arranging hole.

2. The LED display screen using the semiconductor chilling plate for heat dissipation as claimed in claim 1, wherein: the mounting shell (2) comprises an upper shell (21) and a bottom cover heat dissipation plate (22), the upper shell (21) is of a rectangular structure with an open bottom end, the bottom cover heat dissipation plate (22) is fixed on the upper shell (21), the bottom opening of the upper shell (21) is sealed by the bottom cover heat dissipation plate (22), a slotted hole is formed in the top end face of the upper shell (21), and the semiconductor refrigeration piece (3) is fixedly connected to the inner end face of the bottom cover heat dissipation plate (22).

3. The LED display screen using the semiconductor chilling plate for heat dissipation as claimed in claim 2, wherein: the outer end face of the bottom cover heat dissipation plate (22) is provided with a plurality of heat dissipation teeth (23).

4. The LED display screen using the semiconductor chilling plate for heat dissipation as claimed in claim 2, wherein: and a heat dissipation plate sealing strip is arranged between the upper shell (21) and the bottom cover heat dissipation plate (22).

5. The LED display screen using the semiconductor chilling plate for heat dissipation as claimed in claim 1, wherein: a module sealing strip (4) is arranged between each LED module (1) and the mounting shell (2).

6. The LED display screen using the semiconductor chilling plate for heat dissipation as claimed in claim 1, wherein: and a waterproof joint (6) is fixed on the wire arrangement hole of the mounting shell (2).

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