LED display screen

A technology of LED display screen and LED light board, which is applied in cooling/heating devices of lighting devices, lighting devices, light sources, etc., can solve the cost of raw materials for aluminum radiators, high maintenance costs, unsatisfactory heat dissipation effects, and post-maintenance Not in time and other problems, to achieve the effect of light weight, improved heat dissipation effect, increased heat exchange area and heat exchange efficiency

Inactive Publication Date: 2014-12-03
石家庄科航光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Analysis of the reasons is mainly due to the aging of the power cord, product quality problems, heat dissipation problems, and untimely maintenance in the later period. Among them, the heat dissipation problem is the most important reason. Most of the existing LED displays use fans

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1. Different from the existing LED display screen that uses fans for heat dissipation, a second heat dissipation device is added on the integrated circuit welding surface of the LED lamp board. The second heat dissipation device is a layered heat dissipation device made of thermomagnetic working fluid The thickness of the second radiator is 0.1-0.2mm. The heat dissipation effect of the thermomagnetic radiator is much better than that of ordinary copper radiators, aluminum radiators and fans, and the average power consumption per watt is only It needs 8-20g of thermal magnetic working fluid material, which is only equivalent to 1 / 5-1 / 10 of the aluminum heat sink. It is light in weight, low in carbon emissions in the material manufacturing process, energy-saving and environmentally friendly, and at the same time improves the performance of the LED display. The heat dissipation effect prolongs the service life of the LED display.

[0017] Three groups of experim...

Embodiment 2

[0021] Embodiment 2. What is different from the existing LED display screen that uses a fan to dissipate heat is that the first heat dissipation device is not a fan but a thermomagnet radiator made of thermomagnetic working fluid material. The first heat dissipation device is arranged on the rear cover 3 The inner surface of the first heat sink has a thickness of 0.1-0.2mm. Compared with fans, the thermomagnetic working fluid material itself does not generate power consumption and heat, saving energy. Compared with aluminum radiators, the average power consumption per watt is only 8-20g of thermomagnetic working fluid material, which is only equivalent to 1 / 5 to 1 / 10 of the aluminum radiator, the cost of the thermomagnetic working fluid material is slightly lower than that of ordinary aluminum, and at the same time it has the characteristics of light weight, less consumables, and high processing efficiency. Therefore, the LED display screen The total cost is greatly reduced. ...

Embodiment 3

[0026] Embodiment 3, what is different from the existing LED display screens that use fans to dissipate heat is that the first heat dissipation device is not a fan, but a layered thermomagnet radiator made of thermomagnetic working fluid material, the first heat dissipation device is set On the inner surface of the rear cover 3, the thickness of the first heat sink is 0.1-0.2 mm; at the same time, a second heat sink is added on the integrated circuit welding surface of the LED lamp board, and the second heat sink is made of a thermomagnetic working fluid material. A layered thermomagnet radiator with a thickness of 0.1-0.2 mm is formed.

[0027] Such as figure 1 As shown, an LED display screen includes a box body 1, a module 2, a power supply, and a control box, and the module 2, power supply, and control box are all fixedly connected to the box body 1, and the power supply is a regulated power supply from AC to DC. The power factor of the power supply is greater than 0.95, t...

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Abstract

Provided is an LED display screen. A first heat radiating device is arranged in a box body, modules are arranged in a matrix mode on the front end face of the box body, a rear cover is fixed on the rear end face of the box body, a connecting mode of the rear cover and the box body is a detachable connecting mode, heat radiating holes are formed in the rear cover, and the modules comprise face covers, LED lamp plates and module housings. The front sides of the LED lamp plates are LED welding faces, LED light-emitting tubes are welded on the LED welding faces, the back sides of the LED lamp plates are integrated circuit welding faces, and second heat radiating devices are added on the integrated circuit welding faces of the LED lamp plates and are thermo-magnetic heat radiators. The LED display screen has the advantages of being light in weight, low in cost, good in heat radiating effect, stable in light efficiency and power, energy-saving and environment-friendly. In addition, the lumens depreciation of the LED light-emitting tubes is very low, the service life of the LED display screen is prolonged, and fault occurrence probability is reduced.

Description

technical field [0001] The invention belongs to the technical field of LED display screens and relates to an LED display screen with better heat dissipation effect. Background technique [0002] LED is a semiconductor display device that was not developed in the 1960s. In the 1970s, with the research progress of semiconductor material synthesis technology, single crystal manufacturing technology and P-N junction formation technology, the performance of light-emitting diodes such as luminous color and brightness has been improved. And quickly enter the batch and practical production. After entering the 1980s, LEDs have greatly improved in terms of luminous wavelength range and performance, and began to form flat panel display products, namely LED displays. In the late 1980s, LED display is a new type of information display media rapidly developed in the world. It has the characteristics of high reliability, long service life, strong environmental adaptability, high cost perf...

Claims

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Application Information

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IPC IPC(8): G09F9/33F21V29/02F21Y101/02
Inventor 王超侯德明赵峰王力飞柴成金
Owner 石家庄科航光电科技有限公司
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