Long-service-life and high-heat-radiation-performance set-top-box

Abstract

The invention discloses a long-service-life and high-heat-radiation-performance set-top-box which comprises the components of a titanium-and-silver white fine coating, a heat radiation connecting layer, a precoat, a first protecting layer, a galvanized board, a second protecting layer and a titanium-and-silver white back coating; wherein the titanium-and-silver white fine coating, the heat radiation connecting layer, the precoat, the first protecting layer, the galvanized board, the second protecting layer and the titanium-and-silver white back coating are successively arranged from top to bottom. The titanium-and-silver white fine coating comprises the following raw materials according to weight parts: 100-120 parts of organic silicone resin, 10-20 parts of glass fiber powder, 20-30 parts of silver powder, 10-18 parts of zirconium carbide, 2-8 parts of titanium dioxide and 1-3 parts of surfactant. The titanium-and-silver white back coating comprises the following raw materials according to weight parts: 70-90 parts of epoxy modified acrylic resin, 20-25 parts of aluminum powder, 15-20 parts of scandium oxide, 2-8 parts of titanium dioxide and 1-3 parts of surfactant. The set-top-box has advantages of environment-friendly performance, high strength, high corrosion resistance, high heat radiation performance, high aging resistance, effective number reduction of layers, effective interface thermal resistance reduction, high luster, high heat radiation efficiency, no easy dust accumulation on the surface of the coating, no powdering cracking after long-term use, and no bubbling.

Description

technical field [0001] The invention relates to a set-top box, in particular to a set-top box with high lifespan and high heat dissipation. Background technique [0002] A digital video converter box, commonly called a set-top box or set-top box, is a device that connects a television to an external signal source. It can convert the compressed digital signal into TV content and display it on the TV. Signals can come from cable, satellite dishes, broadband networks, and terrestrial broadcasts. The content received by the set-top box is to receive digital content, including electronic program guide, Internet web pages, subtitles, etc., in addition to the images and sounds that can be provided by analog TV. It enables users to watch digital TV programs on existing TV sets, and conduct interactive digital entertainment, education and commercial activities through the network. [0003] The shell of the set-top box is a very common plate, which is used to protect and isolate im...

AI Technical Summary

Problems solved by technology

[0003] The shell of the set-top box is a very common plate, which is used to protect and isolate important components. If it is damaged, the core components of the digital video conversion box will be exposed outside, which is not conducive to the components themselves, but also has certain safety hazards. In case of danger such as electric shock

In the prior art, the structural design of most set-top boxes is basically to coat the fine coating directly on the pre-coating layer. The advantage of this is that the process is less and the cost is low. The surface stress of the coating increases. After 2-3 years of use, the surface of the coating begins to crack, bulge, or even fall off under the influence of long-term high and low temperature, humidity, dust corrosion, etc., and the steel plate inside is exposed and begins to grow. Rust, as the protective layer of the set-top box is damaged, the core components inside the set-top box also begin to suffer from various erosions, so the service life of the set-top box begins to decline, so the importance of the set-top box is self-evident

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