Electromagnetic drive coil unit and molding method thereof

The resin molded electromagnetic drive coil unit, wherein the stator assembly which is molded in advance is used as an inner molded body and a connector frame member is formed as a unified body with the inner molded body through an outer molding process,

• herein the stator assembly including a cylindrical yoke having magnetic pole teeth formed therein, a stator coil, and a power supply terminal to the stator coil, and
• and the connector frame member surrounding the power supply terminal to the stator coil,
• wherein the stator assembly and the connector frame member which are molded through separate processes are formed as a unified body, and
• wherein said connector frame member is molded in advance, said connector frame member is inserted into the stator assembly, and the resultant is molded as a unified body.

A resin molded electromagnetic drive coil unit having a double molded structure comprising:

• a stator assembly including a cylindrical yoke having magnetic pole teeth formed therein, a stator coil, and a power supply terminal to the stator coil, and
• a connector frame member surrounding the power supply terminal to the stator coil,
• wherein the stator assembly and the connector frame member which are molded through separate lower pressure processes are formed as a unified body, and
• wherein said connector frame member is molded in advance, said connector frame member is inserted onto the stator assembly, and the resultant is molded as a unified outer body at a higher pressure than the stator assembly and has added strength to form the double molded structure.