Silica gel diaphragm, receiver module, and method for processing silica gel diaphragm

A receiver module, comprising a vibration system received in a housing, wherein the vibration system comprises a silica gel diaphragm and a voice coil combined together, the silica gel diaphragm includes a planar portion located at a center, a folded ring portion disposed at an edge of the planar portion, and a fixing portion connected to the periphery of the folded ring portion for bonding the housing, wherein two metal pieces are integrally injection-molded on the silica gel diaphragm, and symmetrically embedded into the silica gel diaphragm, and either end of each of the metal pieces is provided with a first soldering portion and a second soldering portion;

• and
• each of the first soldering portions is embedded into the planar portion of the silica gel diaphragm that is closer to the folded ring portion, and is used for soldering a winding tap of the voice coil on an inner side of the voice coil;
• each of the second soldering portions protrudes from or is embedded into the fixing portion of the silica gel diaphragm, and is used for soldering a bonding pad on the housing;
• middle portions of the metal pieces connecting the first soldering portions and the second soldering portions are embedded into the silica gel diaphragm to form an electrically conductive path;
• and
• the voice coil is fixed on an inner side of the folded ring portion of the silica gel diaphragm;
• the first soldering portions of the two metal pieces of the silica gel diaphragm are soldered with winding taps at two ends of the voice coil, respectively;
• and the second soldering portions of the two metal pieces are soldered with two bonding pads on the housing, respectively.