| 摘要 |
A portable dehumidifier device that is capable of controlled dehumidification by providing heat source constantly to dehumidify, also known to be the process of drying, particularly in this invention, the dehumidification is controlled and targeted, and is designed for acoustic guitar (includes classic, folk) or the like, and these instruments are known to be susceptible to dimensional distorsions like bulging or loosening of joints when subject to high humidity conditions. The dimensional distorsions have detrimental effects on the guitars and the like over the expected life span. Such instruments consists of a soundbox constructed various type of woods and parts, being glued together as an assembly commonly known as the soundbox, also with a soundhole made unto the soundbox, and with attached steel or nylon strings over the soundbox as the primary the source for generating vibration thus leading to conversion into audible sound energy. The device, made up of three major parts, consists of a torso that hold all other parts together. Attaching to the torso is an insulated heater that provides the required heat energy to influence the relative humidity level within the soundbox. A display & control unit, connected to the torso unit by mean of plug and cables, serves to provide power from the regular home power mains to the insulated heater through the torso. On the torso, a temperature and humidity probe is positioned strategically to detect and measure changes of its surroundings and draws it power from the display & control unit too. The temperature and humidity information is fed back to the display & control unit to inform the users of the current temperature and humidity conditions. The subassembly, insulated heater comprises of a heater casing that serves to house the heating element that provide constant heat energy, and a conceal plate to hold the heating element within the heater case. Regardless of the presence of strings, through manipulating the torso and swivel hander, the insulated heater can be inserted into the soundhole while the upper part of the torso remains outside, incidentally resting on soundbox whilst the guitar is in a supine position, and the soundhole is facing up. When the device is powered up, the insulated heater provides heat energy gradually whilst positioned within the soundbox thus altering the relative humidity level within the soundbox. The device when in operation employs the three principles of drying wood, i.e. (1) constant energy as heat, (2) makes the air within the soundbox to take in moisture from its wood (3) and maintains air circulation by keeping the soundhole opened. With the application of these three principles, dehumidification is ensured.
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