Patent ID: 7657053
Filing Date: 2010-02-02
Classification: H04R

Abstract:
1. A speaker unit comprising: a diaphragm with an aspect ratio exceeding one and a drive mechanism for driving the diaphragm in an internal space of a frame made of a synthetic resin, the frame having both ends thereof provided with a pair of air holes opening on a rear surface opposite to a sound-emitting surface, a pair of electrode members for supplying power to the drive mechanism attached to the vicinity of the both air holes, each of the electrode members including a clamping portion for clamping a clamped portion provided at an end of the frame and being fixed to the clamped portion, an elastic arm portion extending from the clamping portion along the rear surface of the frame, the elastic arm portion being opposed to an opening of the air hole, the frame having the rear surface formed with a clamped portion rear area to be in contact with the clamping portion of the electrode member, and a main body rear area having the opening of the air hole facing the elastic arm portion of the electrode member, the main body rear area being formed lower than the clamped portion rear area in a direction apart from the elastic arm portion of the electrode member so that a step is provided between the main body rear area and the clamped portion rear area.