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Title: US6114785: Positioning device for a sensor element of a miniature fan
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Country: US United States of America

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6 pages

 
Inventor: Horng, Ching-Shen; Kaohsiung, Taiwan

Assignee: Sunonwealth Electric Machine Industry Co., Ltd., Kaohsiung, Taiwan
other patents from SUNONWEALTH ELECTRIC MACHINE INDUSTRY CO., LTD. (739733) (approx. 127)
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Published / Filed: 2000-09-05 / 1997-10-21

Application Number: US1997000954823

IPC Code: Advanced: H02K 1/18; H02K 11/04; H02K 29/08;
IPC-7: H02K 7/14; H02K 11/00; H02K 15/02; H02K 21/22;

ECLA Code: H02K11/00H1; H02K1/18C; H02K29/08;

U.S. Class: Current: 310/068.B; 310/067.R; 310/164;
Original: 310/068.B; 310/067.R; 310/042; 310/164;

Field of Search: 310/67 R,68 B,162,164,62,63,42

Priority Number:
1997-10-21  US1997000954823

Abstract:     A positioning device for a miniature fan includes a coil seat having an axle tube, an upper polar plate assembly, a lower polar plate assembly, and a winding mounted between the upper polar plate assembly and the lower polar plate assembly. A circuit board is mounted to the axle tube and includes a sensor element for activating rotor. The sensor element is located on a line extending from an end edge of the upper polar plate assembly along a direction parallel to a longitudinal axis of the axle tube.

Attorney, Agent or Firm: Bacon & Thomas, PLLC ;

Primary / Asst. Examiners: LaBalle, Clayton;

Maintenance Status: E2 Expired  Check current status
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Family: None

First Claim:
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What is claimed is:     1. A positioning device for a miniature fan, comprising;
  • a coil seat including an axle tube, an upper polar plate assembly, a lower polar plate assembly, and a winding mounted between the upper polar plate assembly and the lower polar plate assembly, the upper polar plate assembly including an end edge,
  • a circuit board mounted to the axle tube and including a sensor element adapted to activate a rotor, and
  • structural elements situated on a vertical line extending from the end edge of the upper polar plate in a direction parallel to a longitudinal axis of the axle tube,
  • wherein said structural elements include said end edge of the upper polar plate assembly and said sensor element, and
  • wherein said end edge of the upper polar plate and said sensor element are thereby aligned with each other by being located on said vertical line extending from the end edge of the upper polar plate assembly along a direction parallel to a longitudinal axis of the axle tube.


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Forward References: Show 10 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (10)   |   Backward references (7)   |   Citation Link

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Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 4pp US4806808  1989-02 Grecksch et al.  Siemens Aktiengesellschaft Printed circuit board for external rotor motor with recess for Hall transducers
Get PDF - 5pp US5093599  1992-03 Horng   Non-brush D.C. motor with new improved stator
Get PDF - 8pp US5245236  1993-09 Horng   Industrial heat dissipating electric fan
Get PDF - 7pp US5510726  1996-04 Brady  R. E. Phelon Co., Inc. Armature tester
Get PDF - 6pp US5539263  1996-07 Lee   Direct current driving ventilation fan
Get PDF - 10pp US5831359  1998-11 Jeske  Papst Motoren GmbH & Co. KG Electronically commutated motor with external rotor
Get PDF - 6pp US5967763  1999-10 Horng   Positioning devices for a sensor element of a miniature fan
       
Foreign References: None

Other Abstract Info: DERABS G2000-593588 DERABS G2000-593588

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