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US 6,188,155 B1Granted
Spindle motor
AssigneeKabushiki Kaisha Sankyo Seiki Seisakusho
InventorsYutaka Ishizuka, Masayoshi Saichi, Yoshinari Yoko
Life of this patent
Estimating the term…
Abstract
In a spindle motor 1, a motor frame 21 is molded from a resin. Therefore, even if an impact is applied to a motor apparatus in which this motor 1 is installed, the impact can be absorbed and hence moderated by the motor frame 21, and ball bearings held by the motor frame 21 can be prevented from being deformed. In addition, since lead terminals 4 for feeding an armature are insert molded in a bottom portion 213 of the motor frame 21, there is no need to use a connector that prevents the miniaturization of the motor or an FPC board which may cause a risk of a wiring pattern being disconnected.
Claims12
A spindle motor comprising:
- a motor frame adapted to be mounted to a motor apparatus, said motor frame being formed by a resin molded piece;
- a rotor supported rotatably relative to said motor frame;
- a stator core held on said motor frame to confront a driving magnet of said rotor;
- coils wound around said stator core;
- a plurality of lead terminals embedded in said motor frame on a side thereof opposite to a side where said stator core is disposed in such a manner as to be partially exposed;
- and
- a through-hole formed in said motor frame for leading ends of said coils therethroucgh out to said side opposite to said side where said stator core is disposed for connection to said lead terminals,
- wherein said lead terminals are provided at central portions of said motor frame, connecting portions are formed at one of end portions of said lead terminals for connection with the ends of said coils, and contact portions are slantingly formed at the other end portions for contact with feed portions provided on the motor in such a manner that when said feed portions are brought into contact with said contact portions at the other end portions, the contact portions at the other end portions are pressingly fitted to said feed portions by elastically deforming the slanted contact portions.
5 more elements
A spindle motor, comprising:
- a motor frame adapted to be mounted to a motor apparatus, said motor frame being formed by a resin molded piece;
- a rotor supported rotatably relative to said motor frame,
- a stator core held on said motor frame to confront a driving magnet of said rotor;
- coils wound around said stator core;
- a plurality of lead terminals embedded in said motor frame on a side thereof opposite to a side where said stator core is disposed in such a manner as to be partially exposed;
- and
- a through-hole formed in said motor frame for leading ends of said coils therethrough out to said side opposite to said side where said stator core is disposed for connection to said lead terminals,
- wherein said lead terminals are embedded in said motor frame at longitudinal central portions thereof, connecting portions are formed at one of end portions of said lead terminals for connection with said ends of said coils, and contact portions are formed at the other end portions for contact with feed portions provided on said motor apparatus,
- wherein said motor frame has in a bottom portion thereof first and second recessed portions and a terminal holding portion at an intermediate portion between said first and second recessed portions for said lead terminals to be embedded in, said connecting portions being disposed in said first recessed portion and said contact portions being disposed in said second recessed portion.
6 more elements
A spindle motor comprising:
- a motor frame adapted to be mounted to a motor apparatus, said motor frame being formed by a resin molded piece;
- a rotor supported rotatably relative to said motor frame;
- a stator core held on said motor frame to confront a driving magnet of said rotor;
- coils wound around said stator core;
- a terminal insertion portion provided in said motor frame on a side thereof opposite to a side where said stator core is disposed for a plurality of terminals to be individually fitted in;
- and
- a through-hole formed in said motor frame for leading ends of said coils therethrough out to said side opposite to said side where said stator core is disposed for connection to said lead terminals,
- wherein said lead terminals are provided at central portions of said motor frame, connecting portions are formed at one of end portions of said lead terminals for connection with the ends of said coils, and contact portions are slantingly formed at the other end portions for contact with feed portions provided on the motor in such a manner that when said feed portions are brought into contact with said contact portions at the other end portions, the contact portions at the other end portions are pressingly fitted to said feed portions by elastically deforming the slanted contact portions.
5 more elements
A spindle motor, comprising:
- a motor frame adapted to be mounted to a motor apparatus, said motor frame being formed by a resin molded piece;
- a rotor supported rotatably relative to said motor frame;
- a stator core held on said motor frame to confront a driving magnet of said rotor;
- coils wound around said stator core;
- a terminal insertion portion provided in said motor frame on a side thereof opposite to a side where said stator core is disposed for a plurality of lead terminals to be individually fitted in;
- and
- a through-hole formed in said motor frame for leading ends of said coils therethrough out to said side opposite to said side where said stator core is disposed for connection to said lead terminals,
- wherein said lead terminals are fitted in said terminal insertion portion at longitudinal central portions thereof, connecting portions are formed at one of end portions of said lead terminals for connection with said ends of said coils, and contact portions are formed at the other end portions for contact with feed portions provided on said motor,
- wherein said motor frame has in a bottom portion thereof first and second recessed portions and said terminal insertion portion at an intermediate portion between said first and second recessed portions, said connecting portions being disposed in said first recessed portion and said contact portions being disposed in said second recessed portion.
6 more elements
Dependencies are inferred from the claim text.