CN211742543U

CN211742543U - LED single-color display screen

Info

Publication number: CN211742543U
Application number: CN202020733864.5U
Authority: CN
Inventors: 马梁振; 王静; 韩宇星
Original assignee: Henan Ruiqi Intelligent Technology Co ltd
Current assignee: Henan Ruiqi Intelligent Technology Co ltd
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2020-10-23
Anticipated expiration: 2030-05-07

Abstract

The utility model relates to a monochromatic display screen of LED, including the first box that is used for installing the LED cell board and the second box that is used for installing power and control board, first box and second box are split type structure, it perforates to be equipped with the cable that supplies the cable to draw forth on the lateral wall of first box, still be equipped with thermoelectric generation heat abstractor in LED cell board rear side in the first box, thermoelectric generation heat abstractor includes the thermal-arrest board, the fin, radiator fan and a plurality of P type semiconductors and the N type semiconductor of setting between thermal-arrest board and fin, the thermal-arrest board pastes with the LED cell board, radiator fan installs on the back lateral wall of first box. When the LED heat collection box works, heat generated by the LED unit plate is transmitted to the heat collection plate, the temperature of the radiating fins is always low, temperature difference is generated between the heat collection plate and the radiating fins, voltage is generated at two ends of the N-type semiconductor and the P-type semiconductor, the voltage is supplied to the radiating fan, and the radiating fan blows out hot air in the box body, so that the temperature is reduced. Compared with the prior art, the heat dissipation effect is better.

Description

LED single-color display screen

Technical Field

The utility model belongs to the LED display screen field especially relates to a LED monochromatic display screen.

Background

The LED display screen is a flat panel display, is composed of small LED module panels for displaying various information such as characters, images, videos and the like, and mainly comprises an LED unit board, a connecting wire, a power supply and a control card, wherein the LED unit board is composed of an LED module, a driving chip and a PCB circuit board. The LED display screen can produce heat in the use, especially outdoor LED display screen, because of its environment requirement luminance of use is very high, will be more than 4000CD, the heat that produces just so is very big, in practical application, improves the heat dissipation capacity of LED display screen, not only effectively improves the efficiency of LED display screen heat dissipation capacity, also can reach the effect of practicing thrift the electric quantity, more is favorable to improving the efficiency of LED display screen life and guarantees the display effect of LED display screen. The existing heat dissipation mode comprises fan heat dissipation, aluminum heat dissipation fins, heat conduction pipes, surface radiation heat dissipation treatment and the like, but the heat dissipation effect is common.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a better monochromatic display screen of LED of radiating effect.

In order to achieve the above object, the utility model discloses a monochromatic display screen of LED adopts following technical scheme: the LED monochromatic display screen comprises a first box body used for installing an LED unit plate and a second box body used for installing a power supply and a control card, the first box body and the second box body are of split structures, a cable hole for leading out a cable is formed in the side wall of the first box body, a thermoelectric generation heat dissipation device is further arranged on the rear side of the LED unit plate in the first box body, the thermoelectric generation heat dissipation device comprises a heat collection plate, a heat dissipation fan, a plurality of P-type semiconductors and N-type semiconductors, the P-type semiconductors and the N-type semiconductors are arranged between the heat collection plate and the heat dissipation plate, the heat collection plate is attached to the LED unit plate, and the heat dissipation.

Has the advantages that: when the LED box is in work, heat generated by the LED unit plate is transmitted to the heat collecting plate, the temperature of the radiating fins is always low, temperature difference is generated between the heat collecting plate and the radiating fins, direct current voltage is generated at two ends of the N-type semiconductor and the P-type semiconductor, the direct current is supplied to the radiating fan, and the radiating fan blows out hot air in the box body, so that the temperature in the box body is reduced. Compared with the prior art, the heat dissipation effect is better.

Furthermore, a detachable connecting structure for connecting the second box body is arranged on the left side wall and/or the right side wall of the first box body.

Furthermore, the number of the heat radiation fans is more than two, and the heat radiation fans are arranged on the rear side wall of the first box body at intervals.

Furthermore, the radiating fins are aluminum radiating fins, a front side ceramic substrate is arranged between the heat collecting plate and the semiconductor, a rear side ceramic substrate is arranged between the radiating fins and the semiconductor, and the radiating fan is electrically connected with the rear side ceramic substrate in a conducting mode.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and obviously, the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts;

FIG. 1 is a front view of a particular embodiment of an LED monochrome display screen;

FIG. 2 is a right side view of FIG. 1;

FIG. 3 is a rear view of FIG. 1;

FIG. 4 is a cross-sectional view taken along section A-A of FIG. 1;

fig. 5 is a schematic structural view of the first casing.

In the figure: 100-a first box body, 110-an LED unit plate, 200-a second box body, 300-a thermoelectric generation and heat dissipation device, 310-a heat collection plate, 320-a heat dissipation fin, 330-a heat dissipation fan, 340-a P-type semiconductor and 350-an N-type semiconductor.

Detailed Description

In order to make the technical purpose, technical solution and advantageous effects of the present invention clearer, the technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.

The specific embodiment of the LED monochromatic display screen, as shown in fig. 1 to 5, includes a first box 100 for mounting the LED unit board and a second box 200 for mounting the power supply and the control card, the first box 100 and the second box 200 are of a split structure, the sidewall of the first box 100 is provided with a cable through hole for leading out the cable, and the first box 100 is further provided with a thermoelectric generation heat sink 300 at the rear side of the LED unit board.

The thermoelectric generation heat sink 300 includes a heat collecting plate 310, a heat radiating fin 320, a heat radiating fan 330, and a plurality of P-type semiconductors 340 and N-type semiconductors 350 disposed between the heat collecting plate 310 and the heat radiating fin 320, the heat collecting plate 310 being attached to the LED unit panel 110, and the heat radiating fan 330 being mounted on the rear sidewall of the first case 100.

Detachable connection structures for connecting the second box body 200 are arranged on the left side wall and the right side wall of the first box body 100, and the selectable connection structures comprise hooks, screws and the like; the second casing 200 is detachably installed at the left side of the first casing 100, there are six heat dissipation fans 330, and the heat dissipation fans 330 are arranged at intervals in parallel on the rear side wall of the first casing 100.

The heat sink 320 in this embodiment is an aluminum heat sink, a front ceramic substrate is disposed between the heat collecting plate 310 and the semiconductor, a rear ceramic substrate is disposed between the heat sink and the semiconductor, and the heat dissipating fan 330 is electrically connected to the rear ceramic substrate.

When the heat collecting plate 310 is operated, the heat generated by the LED unit plate is transferred to the heat collecting plate 310, the temperature of the heat dissipating fin 320 is always low, a temperature difference is generated between the heat collecting plate 310 and the heat dissipating fin 320, a direct current voltage is generated across the N-type semiconductor 350 and the P-type semiconductor 340, the direct current is supplied to the heat dissipating fan 330, and the heat dissipating fan blows out the hot air in the first box 100 to reduce the temperature in the first box 100. Compared with the prior art, the heat dissipation effect is better.

Finally, it should be noted that: the above-mentioned embodiments are only used for illustrating but not limiting the technical solution of the present invention, and any equivalent replacement and modification or partial replacement which do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

LED monochromatic display screen, its characterized in that: the LED power supply box comprises a first box body used for installing an LED unit plate and a second box body used for installing a power supply and a control card, wherein the first box body and the second box body are of split structures, a cable through hole for leading out a cable is formed in the side wall of the first box body, a thermoelectric generation heat dissipation device is further arranged on the rear side of the LED unit plate in the first box body, the thermoelectric generation heat dissipation device comprises a heat collection plate, a heat dissipation fin, a heat dissipation fan, a plurality of P-type semiconductors and N-type semiconductors, the P-type semiconductors and the N-type semiconductors are arranged between the heat collection plate and the heat dissipation fin, the heat collection plate is attached to the LED unit.
2. The LED monochrome display screen of claim 1, wherein: the left side wall and/or the right side wall of the first box body are/is provided with a detachable connecting structure used for connecting the second box body.
3. The LED monochrome display screen of claim 1, wherein: the radiator fan has more than two, and individual radiator fan sets up at the interval on first box rear side wall.
4. The LED monochromatic display screen according to any one of claims 1 to 3, characterized in that: the radiating fins are aluminum radiating fins, a front side ceramic substrate is arranged between the heat collecting plate and the semiconductor, a rear side ceramic substrate is arranged between the radiating fins and the semiconductor, and the radiating fan is electrically connected with the rear side ceramic substrate in a conducting mode.