Heat-generating type piano keyboard external attachment film

Abstract

The invention discloses a heat-generating type piano keyboard external attachment film. The heat-generating type piano keyboard external attachment film comprises an external attachment film body anda heating sheet, wherein the shape and size of the external attachment film body are consistent with the shape and size of a piano keyboard; the external attachment film body comprises a plurality ofwhite key positions and black key positions; each white key position and each black key position are provided with an electric heating sheet respectively; all the electric heating sheets are connectedto a main circuit; and a USB plug is arranged at the tail end of the main circuit. The external attachment film body provided by the invention is made of a transparent and soft rubber or plastic material, when in use, the external attachment film is directly covered on the piano keyboard, and the main circuit is matched with a USB charging head to connect with commercial power or directly connectwith an electric appliances with USB sockets such as a charge pal and the like; after about several tens of seconds, all the key positions on the external attachment film body are gradually heated toabout 40 DEG C, and a player has no cold touch when touching the external attachment film, so that the external attachment film is very suitable for use in cold seasons.

Description

technical field [0001] The invention relates to the field of daily necessities, in particular to a heat-generating keyboard external film. Background technique [0002] In winter, when the temperature is low, when people are practicing the piano, their fingers will feel very uncomfortable when they touch the cold keys; even if the heating and air conditioning are turned on, it is difficult for the keys of the piano to heat up in a short time; if gloves and other hand protection are worn, it will affect the piano. Practice or play effects. Contents of the invention [0003] The technical problem to be solved by the present invention is that there is no effective product in the prior art to deal with the cold piano keys in winter. [0004] In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is: a heat-generating keyboard external film, including the external film body and the heating sheet, the shape and size of ...

AI Technical Summary

Problems solved by technology

[0002] In winter, when the temperature is low, when people practice the piano, their fingers will feel very uncomfortable when they touch the cold keys; even if the heating and air conditioning are turned on, the keys of the piano are difficult to heat up in a short time; if gloves and other hand protection are worn, it will affect the piano. practice or performance

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