Patent ID: 8660284
Filing Date: 2014-02-25
Classification: H01M,H04R,Y02E

Abstract:
1. A hearing aid, comprising: a main body case; a battery case that houses an air battery and that is provided so that it can be pulled from inside the main body case to outside of the main body case; a control device that is actuated by electromotive force of the air battery housed in the battery case; a microphone and speaker electrically connected to the control device; switching portion configured to cut off the supply of power from the air battery to the control device in conjunction with manipulation that pulls at least part of the battery case out of the main body case; a magnet that closes off the air holes of the air battery in conjunction with manipulation that pulls at least part of the battery case out of the main body case; and a protrusion that biases the air battery away from the magnet in a state in which the battery case is housed in the main body case.