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US4952828A Expired / Lapsed US ⏱️ 0.0 years remaining

Brushless generator with front cover inner-stator mount

Assignee: Fujian Xianyou Electric Machine Plant
•
Filing: 1989-05-22
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Granted: 1990-08-28
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Expires: 2009-05-22
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Abstract

Abstract A brushless generator includes an inner stator mounted to the generator front cover. An internal space is thus realized between the generator rear cover and the rotor. A small heat dissipating fan is positioned between the rear cover and rotor and mounted on the rotor for rotation therewith. An exciting coil is mounted on the inner stator, the exciting coil ground terminal being directly connected to the inner stator. The other terminal of the exciting coil is connected through an insulated wire to a bolt mounting the generator designation strip which is used as an electrical conductor for electrically connecting the exciting coil to a voltage regulator mounted on the generator rear cover.

Inventors

  • 👤 Ye Yu-fang
  • 👤 Ye Yu-jing
  • 👤 Ye Yu-wei
  • 👤 Xu Yi-xin

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 20:13
CPC Classifications
H; H02; H02K; H02K9/00; H02K9/02; H02K9/04; H02K9/06; H02K11/00; H02K11/40; H02K19/00; H02K19/16; H02K19/22; H02K19/24; H02K19/36; H02K19/365; H02K5/00; H02K5/04; H02K5/22; H02K5/225

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 189 words
A brushless generator comprising: front and rear covers; an inner stator mounted to the inner wall of said front cover, an exciting coil mounted to said inner stator; and outer stator; an armature coil mounted to said outer stator; a rotor spindle; rotor poles extending from said rotor spindle into a space between said inner and outer stators; an internal fan located between said rear cover and said rotor poles and mounted on said rotor poles for rotation therewith, whereby said internal fan facilitates heat dissipation from the interior of said generator; an electrically conductive designation strip mounted to, but electrically insulated from, said front and rear covers by insulated mounting elements; a voltage regulating means mounted to said rear cover; first electrical conductor means for electrically connecting one electrical terminal of said exciting coil to said designation strip; and second electrical conductor means for electrically connecting said voltage regulator means to said designation strip, whereby said designation strip forms a portion of the electrically conductive path between said voltage regulator means mounted to the rear cover and the exciting coil mounted to the front cover mounted inner stator.
Claim 2
Dependent Claim 189 words
A brushless generator comprising: front and rear covers; an inner stator mounted to the inner wall of said front cover, an exciting coil mounted to said inner stator; and outer stator; an armature coil mounted to said outer stator; a rotor spindle; rotor poles extending from said rotor spindle into a space between said inner and outer stators; an internal fan located between said rear cover and said rotor poles and mounted on said rotor poles for rotation therewith, whereby said internal fan facilitates heat dissipation from the interior of said generator; an electrically conductive designation strip mounted to, but electrically insulated from, said front and rear covers by insulated mounting elements; a voltage regulating means mounted to said rear cover; first electrical conductor means for electrically connecting one electrical terminal of said exciting coil to said designation strip; and second electrical conductor means for electrically connecting said voltage regulator means to said designation strip, whereby said designation strip forms a portion of the electrically conductive path between said voltage regulator means mounted to the rear cover and the exciting coil mounted to the front cover mounted inner stator.
Claim 3
Dependent Claim 27 words
A brushless generator as claimed in claim 1, further including an external fan mounted to a portion of said rotor spindle extending externally of said front cover.
Claim 4
Dependent Claim 26 words
A brushless generator as claimed in claim 1, further including third conductor means for electrically coupling another terminal of said exciting coil to said inner stator.
Claim 5
Dependent Claim 64 words
A brushless generator as claimed in claim 1, wherein said insulated mounting elements comprise electrically conductive mounting bolts in electrical contact with said designation strip and insulating means for fixing and electrically isolating said conductive mounting bolts to said front and rear covers, respectively, said first and second electrical conductor means being in electrical contact with a respective one of said conductive mounting bolts.

References Cited (Backward Citations)

US3215878A Cited
US3548226A Cited
US4087713A Cited
JPS5393313A Cited
US4286187A Cited
US4286186A Cited
US4424464A Cited
US4421998A Cited
US4591747A Cited
US4825112A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-08-27 1994-02-26 1994-08-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-08-27 1998-02-26 1998-08-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-08-27 2002-02-26 2002-08-28 $7700.00 Window Closed / Lapsed

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