< Topic >It makes the output voltage of the step-up transformer stabilize, impresses the voltage of desire securely in the food and depress. SolutionsDepression device 1 the depression warehouse has with the step-up transformer 29 where, boosts the alternating voltage from of 2 where food shelf 6 of the conductivity where the food is mounted is stored and commercial business power source 100 impresses the alternating voltage which is boosted with step-up transformer 29 in the food inside depression warehouse 2. As for step-up transformer 29, although high electric potential side terminal 33 of that secondary coil 31 is jointed to food shelf 6 low voltage side terminal 34 of secondary coil 31 is jointed to the iron core 32 of step-up transformer 29. < Choice figure >Drawing 2【課題】昇圧変圧器の出力電圧を安定させ、食品に所望の電圧を確実に印加して解凍すること。【解決手段】解凍装置1は、食品が載置される導電性の食品棚6が収容される解凍庫2と、商用電源100からの交流電圧を昇圧する昇圧変圧器29とを備え、昇圧変圧器29で昇圧された交流電圧を解凍庫2内の食品に印加する。昇圧変圧器29は、その二次コイル31の高電位側端子33が食品棚6に接続される一方、二次コイル31の低電位側端子34が昇圧変圧器29の鉄芯32に接続されている。【選択図】図2
