PROBLEM TO BE SOLVED: To reduce wasteful energy consumption by controlling the discharge and display of ion in conjunction with the opening/closing of a refrigerator door, in an ion generation device for sterilization and odor elimination in a refrigerator.SOLUTION: The ion generation device includes a control unit 11 for determining the opening/closing of the refrigerator door based on an output from an illuminance sensor 7 for detecting an illuminance level in a refrigerator, stopping the operation of an ion generation part 2 and a fan 3 when the door of the refrigerator is open and resuming the operation of the ion generation part 2 and the fan 3 when it is determined that the refrigerator door has been closed.COPYRIGHT: (C)2013,JPO&INPIT【課題】冷蔵庫の庫内を除菌、消臭するイオン発生装置において、イオンの放出と表示を扉の開閉に連動して制御することにより、無駄な電力の消費を抑制する。【解決手段】イオン発生装置の制御部11は、冷蔵庫の庫内の照度を検出する照度センサー7の出力に基づいて扉の開閉を判定し、扉が開いた状態ではイオン発生部2と送風機3の運転を停止し、冷蔵庫の扉が閉じたと判定したとき、イオン発生部2と送風機3の運転を再開する。【選択図】図3