Electric motor comprising an internal rotor and an external stator

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United States of America Patent

PATENT NO 9979246
SERIAL NO

14778911

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An electric motor (100) features a external stator (28), an internal rotor (150) rotatably mounted within the external stator, the rotor having a lamination stack (200, 200′, 200″) composed of a plurality of rotor plates (201, 201′, 201″) in which are formed at least one first recess (614) and at least one second recess (630), a rotor magnet (224) being located in each first recess (614), the second recess (630) being associated with a jamming element (40) mounted therein. A clamping member (692,694) is arranged between the first recess (614) and the second recess (630). The clamping member and the second recess (630) are shaped so as to enable support of the jamming element (40) on the lamination stack, and to permit application of a force (F) on the clamping member in the direction of the rotor magnet. The second recess (630) serves as a through-opening for receiving a shaft (40), and the shaft (40) serves as the jamming element (40).

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Patent Owner(s)

Patent OwnerAddress
EBM-PAPST ST GEORGEN GMBH & CO KG78112 ST GEORGEN

International Classification(s)

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  • 2014 Application Filing Year
  • H02K Class
  • 2148 Applications Filed
  • 1788 Patents Issued To-Date
  • 83.25 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2014201520162017201820192020202120220255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Helbling, Sergej Villingen-Schwenningen, DE 1 6

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Patent Citation Ranking

  • 3 Citation Count
  • H02K Class
  • 23.38 % this patent is cited more than
  • 7 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges29690063411101 - 1011 - 2021 - 3031 - 4061 - 7071 - 80050100150200250300350400450500550600650700750800850900950

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