Method for manufacturing an armature of a rotation apparatus
AssigneeAsmo Co., Ltd.
InventorsKaname Egawa, Toshio Yamamoto, Keiichi Uemura, Yasuhiro Toyama, Shinji Santo, Yoshiyuki Takabe, Takahiro Nakayama
Life of this patent
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Abstract
A motor includes a stator having magnets, a rotor having teeth, a commutator secured to the rotor, and brushes. A coil is wound about each tooth. The commutator is connected to the coils. The brushes slidably contact the commutator. The number of the magnets and the number of the teeth are determined such that the resultant of torque vectors that act on the teeth is zero. For example, the number of the magnet is six, and the number of the teeth is eight. As a result, the rotor is prevented from vibrating.
Claims12
A method for manufacturing an armature of a rotation apparatus, comprising:
- preparing a core having a plurality of radially extending teeth, wherein a coil is wound about each tooth;
- preparing a commutator, which has a plurality of segments arranged along the circumferential direction of the commutator, wherein the segments include first segments, which are not connected to the coils, and second segments, which are connected to the coils;
- connecting each of a plurality of short-circuit members to three of the segment, wherein each short-circuit member has two opposite ends and a center portion between the two opposite ends, the center portion being connected to one of the first segments and the two opposite ends being connected to two of the second segments that are spaced from the one first segment in the opposite directions along the circumference of the commutator;
- and
- connecting each end of each coil to one of the second segments after connecting the short-circuit members to the corresponding segments.
Dependencies are inferred from the claim text.