JPS5681067A - Metal cast squirrel-cage rotor - Google Patents

Metal cast squirrel-cage rotor

Info

Publication number
JPS5681067A
JPS5681067A JP15633579A JP15633579A JPS5681067A JP S5681067 A JPS5681067 A JP S5681067A JP 15633579 A JP15633579 A JP 15633579A JP 15633579 A JP15633579 A JP 15633579A JP S5681067 A JPS5681067 A JP S5681067A
Authority
JP
Japan
Prior art keywords
rotor core
bar
slot
core
cage rotor
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
JP15633579A
Other languages
Japanese (ja)
Inventor
Masayuki Koido
Toshio Miyata
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 JP15633579A priority Critical patent/JPS5681067A/en
Publication of JPS5681067A publication Critical patent/JPS5681067A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K17/00—Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02—Asynchronous induction motors
    • H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Induction Machinery (AREA)

Abstract

PURPOSE:To eliminate stress concentration at a bar end by a method wherein the engaging part of a bar and a core to be provided within a slot of rotor core is provided with unevenness for engaging the two. CONSTITUTION:A rotor core 3 is prepared by alternately laminating a fixed number of iron plates having a short radial length and also of those having a long radial length in the part corresponding to the bottom of the slot 4 of the rotor core 3. Accordingly, the bottom part of slot 4 of the rotor core 3 repeats unevenness. The rotor core 3 is mounted to a mold followed by injecting aluminium to form a bar 1 in each slot 4 and also an end ring 2 each on both ends. Consequently, because the projected part 6 of the bar 1 engages with the core 3, the stress concentration on the bar end can be eliminated.
JP15633579A 1979-12-04 1979-12-04 Metal cast squirrel-cage rotor Pending JPS5681067A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15633579A JPS5681067A (en) 1979-12-04 1979-12-04 Metal cast squirrel-cage rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15633579A JPS5681067A (en) 1979-12-04 1979-12-04 Metal cast squirrel-cage rotor

Publications (1)

Publication Number Publication Date
JPS5681067A true JPS5681067A (en) 1981-07-02

Family

ID=15625519

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15633579A Pending JPS5681067A (en) 1979-12-04 1979-12-04 Metal cast squirrel-cage rotor

Country Status (1)

Country Link
JP (1) JPS5681067A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3502697A1 (en) * 1984-11-29 1986-06-05 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Asynchronous rotor
JP2007099346A (en) * 2005-10-05 2007-04-19 Konica Minolta Business Technologies Inc Packaging box

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3502697A1 (en) * 1984-11-29 1986-06-05 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Asynchronous rotor
JP2007099346A (en) * 2005-10-05 2007-04-19 Konica Minolta Business Technologies Inc Packaging box

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