A kind of vehicle mouse-repelling device,It is formed equipped with a box body and a control circuit,Wherein in control circuit configuration what box body,Control circuit include an audio oscillation IC,One loudspeaker,An at least light-emitting diode,One switch,One power connection,One height voltage protection circuit,The power connection is electrically connected one automobile storage battery of what,The height voltage protection circuit is electrically connected the what power connection； It configures in what car engine room,Audio needed for energization Hou is vibrated out using audio oscillation IC,To have repellent effect； And the effect of protection shutdown is detected with high-low pressure by height voltage protection circuit,Avoid automobile storage battery in brownout still by mouse driving device continuous drain,It can be automatically powered off if when the overtension connect,Prevent the excessive high voltage automobile storage battery of wrong from mouse driving device being caused to be damaged； And there is the effect of triggering electric power detecting shutdown when engine start,It avoids expending power supply.一種車用驅鼠器，設有一盒體及一控制電路所組成，其中控制電路配置於盒體中，控制電路包含一音頻振盪IC、一喇叭、至少一發光二極體、一開關、一電源接頭、一高低壓保護電路，該電源接頭電性連接於一汽車電瓶，該高低壓保護電路電性連接於該電源接頭；配置於汽車引擎室中，通電後利用音頻振盪IC振盪出所需音頻，以具驅鼠效果；且藉由高低壓保護電路以具有高低壓偵測保護關機之作用，避免汽車電瓶在電壓過低時仍被驅鼠器持續耗電，若所接之電壓過高時則可以自動斷電，防止接錯過度高電壓汽車電瓶導致驅鼠器損毀；以及引擎啟動時具有觸發電源偵測關機之作用，避免耗費電源。
