Bone conductive sound generating device

A head-mounted earphone, comprising:

• a frame, comprising a rim, a first arm, a second arm, and a rotational assembly, wherein the rotational assembly is configured to connect the first arm and the second arm to two opposite ends of the rim;
• a first speaker assembly, comprising a first connection member and a first speaker mechanism connected with each other;
• a second speaker assembly, comprising a second connection member and a second speaker mechanism connected with each other;
• a first hinge, configured to connect an end of the first connection member away from the first speaker mechanism to an end of the first arm away from the rim;
• and
• a second hinge, configured to connect an end of the second connection member away from the second speaker mechanism to an end of the second arm away from the rim, wherein
• a distance between the end of the first connection member away from the first speaker mechanism and the end of the first arm away from the rim is adjustable via the first hinge;
• when the first hinge is in a first state, the first speaker mechanism is in a first fixed position relative to the first arm, and a first distance is defined between the end of the first connection member away from the first speaker mechanism and the end of the first arm away from the rim;
• when the first hinge is in a second state, the first speaker mechanism is in a second fixed position relative to the first arm, and a second distance is defined between the end of the first connection member away from the first speaker mechanism and the end of the first arm away from the rim, wherein the first distance is less than the second distance, and
• wherein the first hinge comprises:
• a first hinge base, connected to the end of the first arm away from the rim;
• a first hinge shaft;
• a first hinge arm, wherein an end of the first hinge arm is rotatably connected to the first hinge base through the first hinge shaft the other end of the first hinge arm is connected to an end of the first connection member away from the first bone conductive speaker mechanism, such that the first connection member and the first bone conductive speaker mechanism is rotatable relative to the first arm to allow the first bone conductive speaker mechanism to be arranged at the first fixed position or the second fixed position relative to the first arm;
• and
• a supportive member and an elastic member, wherein the supportive member is movably arranged with the first hinge base, the elastic member is configured to apply an elastic force to the supportive member to elastically offset the supportive member towards the first hinge arm.

A bone conductive speaker assembly, comprising:

• a connection member and a bone conductive speaker mechanism, wherein
• an end of the connection member is connected to the bone conductive speaker mechanism, the other end of the connection member is capable of being electrically connected to an end of an arm of eyeglasses;
• the bone conductive speaker mechanism has a protruded curved face, the protruded curved face is capable of adhering to and fitting with a predefined region of a back of an auricle of an ear;
• and
• a center of the predefined region directly faces a crus of helix of the ear,
• wherein the bone conductive speaker assembly further comprises a first hinge configured to connect the end of the arm with the first connection member, the first hinge comprises:
• a first hinge base, connected to the end of the first;
• a first hinge shaft;
• a first hinge arm, wherein an end of the first hinge arm is rotatably connected to the first hinge base through the first hinge shaft the other end of the first hinge arm is connected to an end of the first connection member away from the first bone conductive speaker assembly, such that the first connection member and the first bone conductive speaker assembly is rotatable relative to the first arm to allow the first bone conductive speaker mechanism to be arranged at the first fixed position or the second fixed position relative to the first arm;
• and
• a supportive member and an elastic member, wherein the supportive member is movably arranged with the first hinge base, the elastic member is configured to apply an elastic force to the supportive member to elastically offset the supportive member towards the first hinge arm.