RING SHAPED RUBBER MAGNET AND SPINDLE MOTOR HAVING THE SAME

Title:

RING SHAPED RUBBER MAGNET AND SPINDLE MOTOR HAVING THE SAME

Document Type and Number:

Japanese Patent JP2013116039

Kind Code:

A

Abstract:

To provide: a ring shaped rubber magnet which reduces touch sound between the ring shaped rubber magnet and a stator core and constantly outputs characteristics and signals of the motor at a coupling part; and a spindle motor having the same.

In a ring shaped rubber magnet 10b, one surface of a sheet shaped rubber magnet has an obtuse angle of 90 degrees or more at an edge of one end portion thereof and an acute angle of 90 degrees or less at an edge of the other end portion thereof, and the other surface of the sheet shaped rubber magnet has an acute angle of 90 degrees or less at an edge of one end portion thereof and an obtuse angle of 90 degrees or more at an edge of the other end portion thereof.

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Inventors:

MIN JIN SUN
LEE BYUNG HOON

Application Number:

JP2012197412A

Publication Date:

June 10, 2013

Filing Date:

September 07, 2012

Export Citation:

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Assignee:

SAMSUNG ELECTRO MECH

International Classes:

H02K1/27; H01F7/02

Attorney, Agent or Firm:

Ippei Watanabe
Koji Kikawa
Hiroyuki Sato
Shigeru Koike

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