High-strength household appliance PBT/PC plastic alloy shell

Abstract

The invention discloses a high-strength household appliance PBT / PC plastic alloy shell, which comprises a top wall, a bottom wall, a rear side wall, a left side wall and a right side wall, wherein a heat dissipation cavity is defined by the top wall, the bottom wall, the rear side wall, the left side wall and the right side wall, heat dissipation holes are formed in the top wall, a heat dissipation cover plate is arranged on the heat dissipation holes, the heat dissipation cover plate is connected with a supporting rod, the supporting rod extends into the heat dissipation cavity, and thermal bimetal is arranged on the left side wall and / or the right side wall, and is connected with the supporting rod. According to the invention, the heat dissipation holes can be automatically opened or closed according to the use heating condition of an electric appliance, so that effective heat dissipation can be achieved, the occupied space is small, extra power is not needed, and dust can be prevented from entering and being attached to a circuit board when the heat dissipation device is not used for a long time.

Description

technical field [0001] The invention belongs to the field of household appliances, and more specifically relates to a high-strength household appliance PBT / plastic alloy casing. Background technique [0002] Most electrical appliances will heat up after a long time, so timely cooling is needed to ensure the normal operation of the electrical appliances. Most electrical appliances have high heat dissipation requirements. Due to the limitation of the size of the electrical appliances themselves, such as smart TVs used in households, their thickness is getting thinner and thinner. However, the performance is strong, the power consumption is large, and the heat generation is large. Due to the small space, it is usually impossible to install a fan for active cooling. The heat dissipation of the current TV casing is usually provided with a plurality of cooling holes on the rear side of the casing. [0003] The heat dissipation holes of some TVs face the wall behind the TV horizont...

AI Technical Summary

Problems solved by technology

[0002] Most electrical appliances will heat up after a long time, so timely cooling is needed to ensure the normal operation of the electrical appliances. Most electrical appliances have high heat dissipation requirements. Due to the limitation of the size of the electrical appliances themselves, such as smart TVs used in households, their thickness is getting thinner and thinner. However, the performance is strong, the power consumption is large, and the heat generation is high. Due to the small space, it is usually impossible to install an active cooling fan. The heat dissipation of the current TV casing is usually provided with multiple cooling holes on the rear side of the casing.

[0003] The heat dissipation holes of some TVs face the wall behind the TV horizontally, which is not conducive to the flow of hot air, and the heat dissipation holes of some TVs are vertically upward, so that the heat flows upward along its natural movement direction. The heat dissipation holes also become the entrance for dust to enter, especially when the TV is placed in a horizontal position, the fluff and other dust generated by various fabrics in the horizontal position will enter the TV through the heat dissipation holes and adhere to the circuit board of the TV. The back of the TV is like being wrapped in a quilt, and the heat dissipation effect is getting worse and worse, resulting in a greatly reduced lifespan of the TV.

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