JPS57196850A - Rotor for induction motor - Google Patents

Rotor for induction motor

Info

Publication number
JPS57196850A
JPS57196850A JP56080433A JP8043381A JPS57196850A JP S57196850 A JPS57196850 A JP S57196850A JP 56080433 A JP56080433 A JP 56080433A JP 8043381 A JP8043381 A JP 8043381A JP S57196850 A JPS57196850 A JP S57196850A
Authority
JP
Japan
Prior art keywords
conductors
core
rotor
hollow parts
induction motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP56080433A
Other languages
Japanese (ja)
Inventor
Motoya Ito
Noboru Fujimoto
Noriyoshi Takahashi
Masatoshi Watabe
Yukiaki Shimizu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56080433A priority Critical patent/JPS57196850A/en
Publication of JPS57196850A publication Critical patent/JPS57196850A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
    • H02K9/225—Heat pipes

Abstract

PURPOSE:To reduce a damage of a rotor for an induction motor due to thermal stress by providing longitudinal hollow parts in the boundary between a rotor core and annular conductors mounted at the outer periphery of the core, and hermetically sealing a heat pipe operation liquid in the hollow parts, thereby improving the cooling of the bar. CONSTITUTION:Thermally conductive hollow parts 17 extending along the longitudinal direction of integral annular conductors 6 having slits 9 are formed in the boundary between the conductors 6 and a rotor core 7 in a squirrel-cage rotor in which the integral conductors 6 having slits formed at the outer periphery of the core 7. A heat pipe operation liquid 19 is sealed in the hollow parts 19 to form heat pipes. In this manner, the heat produced at the conductors 6 can be rapidly transmitted to the core 7, so that the temperature difference between the conductors 6 and the core 7 is reduced, thereby reducing the thermal stress.
JP56080433A 1981-05-27 1981-05-27 Rotor for induction motor Pending JPS57196850A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56080433A JPS57196850A (en) 1981-05-27 1981-05-27 Rotor for induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56080433A JPS57196850A (en) 1981-05-27 1981-05-27 Rotor for induction motor

Publications (1)

Publication Number Publication Date
JPS57196850A true JPS57196850A (en) 1982-12-02

Family

ID=13718125

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56080433A Pending JPS57196850A (en) 1981-05-27 1981-05-27 Rotor for induction motor

Country Status (1)

Country Link
JP (1) JPS57196850A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1100187A2 (en) * 1999-11-10 2001-05-16 Korea Advanced Institute of Science and Technology Coreless AC induction motor
US7443062B2 (en) * 2004-09-30 2008-10-28 Reliance Electric Technologies Llc Motor rotor cooling with rotation heat pipes
US9819248B2 (en) 2012-12-31 2017-11-14 Teco-Westinghouse Motor Company Assemblies and methods for cooling electric machines
US11821536B2 (en) 2019-11-07 2023-11-21 Denso Corporation Valve device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1100187A2 (en) * 1999-11-10 2001-05-16 Korea Advanced Institute of Science and Technology Coreless AC induction motor
EP1100187A3 (en) * 1999-11-10 2003-07-16 Korea Advanced Institute of Science and Technology Coreless AC induction motor
US7443062B2 (en) * 2004-09-30 2008-10-28 Reliance Electric Technologies Llc Motor rotor cooling with rotation heat pipes
US9819248B2 (en) 2012-12-31 2017-11-14 Teco-Westinghouse Motor Company Assemblies and methods for cooling electric machines
US11821536B2 (en) 2019-11-07 2023-11-21 Denso Corporation Valve device

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