JPS57170035A - Rotor core for electric machine - Google Patents

Rotor core for electric machine

Info

Publication number
JPS57170035A
JPS57170035A JP5393281A JP5393281A JPS57170035A JP S57170035 A JPS57170035 A JP S57170035A JP 5393281 A JP5393281 A JP 5393281A JP 5393281 A JP5393281 A JP 5393281A JP S57170035 A JPS57170035 A JP S57170035A
Authority
JP
Japan
Prior art keywords
rotor core
slot
inflection
combination
electric machine
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
JP5393281A
Other languages
Japanese (ja)
Inventor
Yoshitaka Nakayama
Tsutomu Ogawa
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP5393281A priority Critical patent/JPS57170035A/en
Publication of JPS57170035A publication Critical patent/JPS57170035A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/26—Rotor cores with slots for windings
    • H02K1/265—Shape, form or location of the slots

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Induction Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

PURPOSE:To increase tightness within a rotor core, by the forming of slot ends with a curve which has points of inflection or straight lines, or a combination of both at a rotor core composed of laminated steel. CONSTITUTION:A rotor core composed of laminated steel has a slot 3a and a bridge 1b. The slot 3a end is shaped with a curve which has points of inflection 5, 6 or straight lines, or a combination of both. A comparatively great force of compression is produced in the neighborhood of point of inflection 5, 6 while the slot 3a is pressed for blanking. Hence, a combination of attraction with a punch reduces a slack of the bridge 1b in blanking direction.
JP5393281A 1981-04-10 1981-04-10 Rotor core for electric machine Pending JPS57170035A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5393281A JPS57170035A (en) 1981-04-10 1981-04-10 Rotor core for electric machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5393281A JPS57170035A (en) 1981-04-10 1981-04-10 Rotor core for electric machine

Publications (1)

Publication Number Publication Date
JPS57170035A true JPS57170035A (en) 1982-10-20

Family

ID=12956503

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5393281A Pending JPS57170035A (en) 1981-04-10 1981-04-10 Rotor core for electric machine

Country Status (1)

Country Link
JP (1) JPS57170035A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60210425A (en) * 1984-04-04 1985-10-22 Mitsui Petrochem Ind Ltd Manufacture of stretched polyethylene product
CN108462266A (en) * 2018-05-16 2018-08-28 江苏洛克电气集团有限公司 The rotor of freezer compressor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5217045U (en) * 1975-07-21 1977-02-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5217045U (en) * 1975-07-21 1977-02-07

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60210425A (en) * 1984-04-04 1985-10-22 Mitsui Petrochem Ind Ltd Manufacture of stretched polyethylene product
JPH0240764B2 (en) * 1984-04-04 1990-09-13 Mitsui Petrochemical Ind
CN108462266A (en) * 2018-05-16 2018-08-28 江苏洛克电气集团有限公司 The rotor of freezer compressor
CN108462266B (en) * 2018-05-16 2020-06-12 江苏洛克电气集团有限公司 Motor rotor of refrigerator compressor

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