Defrosting apparatus and methods for operation thereof

• Main Authors: SCOTT JAMES ERIC, SIMON JEREMIE, MARK KAWELE J M, MONGIN LIONEL, PIEL PIERRE MARIE JEAN
• Format: Patent
• Language: Chinese; English
• Published: 19.07.2019
• Subjects: BLASTING; COLD ROOMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS; HEAT PUMP SYSTEMS; HEATING; ICE-BOXES; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; REFRIGERATION OR COOLING; REFRIGERATORS; WEAPONS

The invention relates to a defrosting apparatus and methods for operation thereof. The system includes an RF source, two electrodes proximate to a cavity within which a load to be defrosted is positioned, a transmission path between the RF signal source and the electrodes, and an impedance matching network electrically coupled along the transmission path between the output of the RF signal sourceand the electrodes. The system also includes power detection circuitry coupled to the transmission path and configured to detect reflected signal power along the transmission path. A system controlleris configured to modify, based on the reflected signal power, values of variable capacitors of the impedance matching network to reduce the reflected signal power. The impedance matching network maybe a single-ended network or a double-ended network. 本公开涉及除霜设备及其操作方法。一种除霜系统包括：RF信号源；两个电极，其靠近其内定位有待除霜的负载的腔；传输路径，其在所述RF信号源与所述电极之间；以及阻抗匹配网络，其沿着所述RF信号源的输出端与所述电极之间的所述传输路径电耦合。所述系统还包括功率检测电路系统，所述功率检测电路系统耦合到所述传输路径并且被配置成检测沿着所述传输路径的反射信号功率