Ice remover for car windows or freezers has scraper vibrated by motor with two piezoelectric ceramics and transformer for higher efficiency

摘要

Ice remover consists of a scraper (2) that can be vibrated by a motor connected to a power source such as a car cigar lighter socket and comprising two piezoelectric ceramics (3, 4). The motor generates ultrasonic vibrations with the aid of an amplifier that transforms a direct current into an alternating one with a frequency corresponding to the resonance of the piezoelectric ceramics. Ice remover consists of a scraper (2) that can be vibrated by a motor connected to a power source such as a car cigar lighter socket and comprising two piezoelectric ceramics (3, 4). The motor generates ultrasonic vibrations with the aid of an amplifier that transforms a direct current into an alternating one with a frequency corresponding to the resonance of the piezoelectric ceramics. The amplifier has a frequency generator connected to an internal and external temperature measuring system that regulated the excitation frequency fed to the ceramics. The scraper is extended by an inertia counterweight.