SMALL-SIZED MOTOR AND MOTOR DRIVER

Title:

SMALL-SIZED MOTOR AND MOTOR DRIVER

Document Type and Number:

WIPO Patent Application WO/1997/040568

Kind Code:

A1

Abstract:

A motor driver (1A) is provided with a circuit board (100) on which a feeder circuit is formed, a supporting member (8) fixed to the substrate (100), and a small-sized motor (2A) detachably attached to the member (8). The motor (2A) is a DC vibrating motor and is constituted of a casing (3), a stator (4) and a rotor (5) both housed in the casing (3), a plus terminal (6) and a minus terminal (7) both for supplying electric power to the rotor (5), and a weight (eccentric body) (25) fixed to the end of the rotating shaft (53) of the rotor (5). A notched section (321) and a recessed section (335) are formed in the motor (2A) as rotation preventing means which prevents the rotation of the whole motor (2A) relative to the supporting member (8) when the motor (2A) is driven. An engaging piece (83) which is engaged with the notched section (321) and an engaging piece (85) which is engaged with the recessed section (335) are provided on the supporting member (8).

Inventors:

KAWABATA SEIJI (JP)
SOYA YASUSHI (JP)
NAKATA SATOSHI (JP)

Application Number:

PCT/JP1997/000887

Publication Date:

October 30, 1997

Filing Date:

March 19, 1997

Export Citation:

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Assignee:

SEIKO EPSON CORP (JP)
KAWABATA SEIJI (JP)
SOYA YASUSHI (JP)
NAKATA SATOSHI (JP)

International Classes:

H01R39/24; H02K5/00; H02K5/14; H02K5/22; H02K5/26; H02K7/06; H02K5/167; H05K3/30; (IPC1-7): H02K5/00

Foreign References:

JPH031651U	1991-01-09
JPH01162747U	1989-11-13
JPS5680648U	1981-06-30
JPH0446542A	1992-02-17
JPH08229253A	1996-09-10
JPH0741992U	1995-07-21
JPH0179350U	1989-05-29
JPH0363060U	1991-06-20
JPH0158261U	1989-04-12
JPH08275430A	1996-10-18
JPH02136455U	1990-11-14
JPS55106476U	1980-07-25

Other References: