PROBLEM TO BE SOLVED: To prevent abnormal variation of voltage and current between electrodes, collapse of an AC waveform, difficulty of control, and damage of a transformer of a power supply caused by affection of leak current from an annular electrode for energization heating, when food materials are energized and heated by applying AC voltage across adjacent annular electrodes for energization heating, in a continuous energization heating apparatus in which electrodes for grounding are disposed on the respective outsides of electrodes on both side ends, among plural annular electrodes for energization heating forming a pipe line for energization heating.SOLUTION: Two electrodes for voltage application positioned on both end sides of a pipe line for energization heating are connected to an output terminal on the reference potential side of an output transformer of an AC power supply, among three or more annular electrodes for voltage application.COPYRIGHT: (C)2015,JPO&INPIT【課題】通電加熱用管路を構成している複数の通電加熱用環状電極のうち、両端側の電極のそれぞれの外側にアース用電極が配設されている連続通電加熱装置において、交流電圧を隣り合う通電加熱用環状電極間に印加して食品材料を通電加熱するにあたって、通電加熱用環状電極からの漏れ電流の影響によって、電極間電圧や電流が異常変動したり、交流波形が崩れたり、制御が困難となったり、電源のトランスが損傷したりすることを、有効に防止する。【解決手段】3個以上の電圧印加用環状電極のうち、通電加熱用管路の両端側に位置する二つの電圧印加用電極を、交流電源の出力トランスの基準電位側の出力端子に共通に接続した。【選択図】図2
