Tamagawa Seiki Kabushiki Kaisha

Hiromi Ohshita

An improved resolver permits the outer periphery of a ring-shaped stator and the inner periphery of a ring-shaped rotor to be directly exposed by eliminating the use of a case and a hollow rotating shaft to thereby reduce the outside diameter of the resolver as a whole. This arrangement overcomes the difficulty of reducing the outside diameter of a prior art resolver due to a case disposed to the outer periphery of a ring-shaped stator and a hollow rotating shaft disposed to the inner periphery of a ring-shaped rotor.

Resolver

In a stator winding method and a stator winding structure, the ends (4a) of windings (4) are caused to become entangled with terminals (6) through a longitudinal rod member (10) and form slack portions (4aA) when the longitudinal rod member is removed, whereby the vibration resistance and impact resistance of the windings can be improved as well as the break thereof can be prevented.

Stator winding method and stator winding structure

In a stator structure of a resolver, an extended insulating portion (10) formed integrally with an insulation member (4) is provided with pins (11), stator windings (5) are connected to the pins (11) and a lead wire (7) or a connector (6) is connected to the pins (11). The above arrangement permits the automatic assembly, cost reduction and improvement of productivity of the stator structure as well as the prevention of deterioration of the output characteristics of the resolver which has been conventionally occurred.

Resolver stator structure having insulation extended portion with

In a terminal pin structure of a resolver, a plastic body (5) which holds terminal pins (4) to which a lead wire (7) is connected is disposed on an undercover (3) disposed to an end of a stator (1) and coils (2) are connected to the projecting portions (4a) of the terminal pins (4) projecting from the plastic body (5). With this arrangement, dispersed soldering of coils to a lead wire which conventionally arises when the coils are directly soldered to the lead wire by a manual operation can be eliminated, a soldering job can be easily carried out, dispersion of quality can be eliminated and workability can be improved.

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Nagano-ken, Japan

Hiromi Ohshita