Apparatus for energy transfer in a balanced receiver assembly and manufacturing method thereof

A method of forming a linkage assembly for joining an armature to a diaphragm of a receiver for a hearing aid comprising:

• providing a flat stock of material, the flat stock having a surface defining a plane;
• displacing a first linkage member from the flat stock in a first direction relative to the plane, the first linkage member being retained to the flat stock by a first connecting member;
• displacing a second linkage member from the flat stock in a second direction relative to the plane, the second linkage member being retained to the flat stock by a second connecting member;
• and
• joining the first linkage member and the second linkage member to form the linkage assembly.

A receiver for a hearing aid comprising:

• a housing for the receiver;
• a diaphragm disposed within the housing, the diaphragm having a first end and a second end, the first end being hinged to the housing;
• a receiver motor including an armature disposed within the housing;
• and
• a linkage assembly mechanically coupling the armature to the second end of the diaphragm, the linkage assembly having at least a first linkage member displaced from a strip of stock material relative to the plane and a second linkage member displaced from the strip and relative to the plane, the first and second linkage members being joined while secured to strip and the linkage assembly having a severable connecting member securing the linkage member to the strip during formation of the linkage member, the connecting member being severed to release the linkage member from the strip for assembly of the linkage member into the receiver.

A method of making a receiver for a hearing aid comprising:

• forming a linkage assembly from a flat stock material, the flat stock of material having a surface defining a plane, the linkage assembly having at least a first linkage member displaced from the flat stock material relative to the plane and a second linkage member displaced from the flat stock material and relative to the plane, the first and second linkage members being joined while secured to strip and the linkage assembly having a severable connecting member securing the linkage member to the strip during formation of the linkage member,
• providing a motor assembly for the receiver the motor assembly including an armature, and coupling the motor assembly to the linkage assembly to provide a motor subassembly;
• providing a housing for the receiver;
• disposing within the housing a diaphragm, the diaphragm having a first end and a second end, the first end being hinged to the housing;
• separating the linkage assembly from the strip by severing the connecting member;
• disposing motor subassembly within the housing;
• and
• coupling the linkage assembly to the second end of the diaphragm and to the armature.