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US5097168A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrical motor

Assignee: Mitsubishi Electric Corp
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Filing: 1990-10-31
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Granted: 1992-03-17
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Expires: 2010-10-31
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Abstract

Abstract A motor having a stator which comprises a stator iron core 6 formed by fitting an inner ring magnetic pole portion 10 into an outer ring yoke portion 5, the inner ring magnetic pole portion 10 having slots 8 and magnetic poles 7; an insulating member 11 covering the inner ring magnetic pole portion of the stator iron core; a funnel-like insulating 13 which is formed integrally with the insulating member 11 to cover an end surface 14 of the inner ring magnetic pole portion 10 and which has a first through hole 15 for rotary shaft to communicate with the central portion of the inner ring magnetic pole portion 10 spool frames 23, 24 with pins 28 formed on the magnetic poles 7 so as to be integral with the insulating member 13; a rotor 16 inserted in the inner ring magnetic pole portion; 10; a funnel-like insulating cover 18 having a second through hole 20 for rotary shaft which is in alignment with the first through hole 15, the insulating cover 18 being mounted on the other end surface 12 of the inner ring magnetic pole portion 10 and coils 32, 34 wound on the stator iron core 6 and fitted in the slots 8 in a parallel and crosswise shape, the coils 32, 34 having ends engaged with the pins 28, wherein openings 49 are formed in an outer casing 41 for receiving therein the stator so that the spool frames are inserted in the openings 49; a terminal block 50 connected to a cord for power feeding and supporting electronic devices 52 which are connected with the pins 28 is mounted on the spool frames and a cover 58 is fitted to the outer casing 41.

Inventors

  • 👤 Yukinori Takekoshi
  • 👤 Makoto Ukai
  • 👤 Shuuichi Kiri
  • 👤 Yukihisa Suzumura
  • 👤 Satoshi Takefushi
  • 👤 Naotoshi Kaito
  • 👤 Yoshio Kasuga
  • 👤 Yuuji Nakahara
  • 👤 Masahiro Taguchi
  • 👤 Kenichi Azuma
  • 👤 Shigekazu Sakabe

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 20:15
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/46; H02K5/00; H02K5/04; H02K5/22; H02K5/225; H02K1/00; H02K1/06; H02K1/12; H02K1/16; H02K11/00; H02K11/30; H02K11/33; H02K3/04; H02K3/12; H02K3/32; H02K3/34; H02K3/345; H02K3/50; H02K2203/00; H02K2203/03; H02K2211/00; H02K2211/03; H02K5/08

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 265 words
A motor comprising: a stator which comprises a stator iron core formed by fitting an inner ring magnetic pole portion into an outer ring yoke portion, the inner ring magnetic pole portion having slots and magnetic poles; a first insulating member covering said inner ring magnetic pole portion of the stator iron core; a funnel-like second insulating member of an insulating resinous material integrally formed with said first insulating member to cover a first end surface of the inner ring magnetic pole portion and which has a first through hole for a rotary shaft to communicate with a central portion of the inner ring magnetic pole portion, and a spool frame with pins formed on said magnetic poles so as to be integral with said second insulating member; a rotor inserted in said inner ring magnetic pole portion; an insulating cover having a second through hole for the rotary shaft, said second through hole being in alignment with said first through hole, said insulating cover being mounted on a second end surface of said inner ring magnetic pole portion; a coil wound on the stator iron core and fitted in the slots in a parallel and crosswise shape, the coil having ends engaged with said pins, wherein openings are formed in an outer casing for receiving therein said stator so that said pins of said spool frame are inserted in the openings; a terminal block connectable to a power cord and supporting an electronic device which is connected with the pins is mounted on the spool frames; and a cover fitted over said outer casing.
Claim 2
Dependent Claim 265 words
A motor comprising: a stator which comprises a stator iron core formed by fitting an inner ring magnetic pole portion into an outer ring yoke portion, the inner ring magnetic pole portion having slots and magnetic poles; a first insulating member covering said inner ring magnetic pole portion of the stator iron core; a funnel-like second insulating member of an insulating resinous material integrally formed with said first insulating member to cover a first end surface of the inner ring magnetic pole portion and which has a first through hole for a rotary shaft to communicate with a central portion of the inner ring magnetic pole portion, and a spool frame with pins formed on said magnetic poles so as to be integral with said second insulating member; a rotor inserted in said inner ring magnetic pole portion; an insulating cover having a second through hole for the rotary shaft, said second through hole being in alignment with said first through hole, said insulating cover being mounted on a second end surface of said inner ring magnetic pole portion; a coil wound on the stator iron core and fitted in the slots in a parallel and crosswise shape, the coil having ends engaged with said pins, wherein openings are formed in an outer casing for receiving therein said stator so that said pins of said spool frame are inserted in the openings; a terminal block connectable to a power cord and supporting an electronic device which is connected with the pins is mounted on the spool frames; and a cover fitted over said outer casing.
Claim 3
Dependent Claim 14 words
The motor according to claim 1, wherein said terminal block is a molded product.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1995-03-17 1995-09-16 1996-03-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-03-17 1999-09-16 2000-03-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-03-17 2003-09-16 2004-03-17 $7700.00 Window Closed / Lapsed

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