JPS5644365A - Drip-proof type motor - Google Patents

Drip-proof type motor

Info

Publication number
JPS5644365A
JPS5644365A JP11877479A JP11877479A JPS5644365A JP S5644365 A JPS5644365 A JP S5644365A JP 11877479 A JP11877479 A JP 11877479A JP 11877479 A JP11877479 A JP 11877479A JP S5644365 A JPS5644365 A JP S5644365A
Authority
JP
Japan
Prior art keywords
load
outer diameter
cast fan
opposite side
cast
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
JP11877479A
Other languages
Japanese (ja)
Inventor
Yoshihisa Sasaki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP11877479A priority Critical patent/JPS5644365A/en
Publication of JPS5644365A publication Critical patent/JPS5644365A/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
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

PURPOSE:To improve the cooling of a rotor and highten the cooling performance of the whole motor by a mechanism wherein an outer diameter of a cast fan at the load side is made smaller than an outer diameter of a cast fan at the opposite side of the load and both inner diameters and both side areas are made approximately equal. CONSTITUTION:An outer diameter of a cast fan 7b at the load side is made smaller than an outer diameter of a cast fan 7a at the opposite side of the load, and the inner diameters and side areas of both fans are made approximately equal. Thus, the static pressure of an air chamber B at the load side is effectively made less than the static pressure of an air chamber A at the opposite side of the load the velocity of the wind is enlarged, and the cooling performance of a stator can be improved. The cooling performance of a rotor 6 can also be improved in a balanced shape because the surface area of the cast fan 7b at the load side is made approximate equal to the cast fan 7a at the opposite side of the load.
JP11877479A 1979-09-18 1979-09-18 Drip-proof type motor Pending JPS5644365A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11877479A JPS5644365A (en) 1979-09-18 1979-09-18 Drip-proof type motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11877479A JPS5644365A (en) 1979-09-18 1979-09-18 Drip-proof type motor

Publications (1)

Publication Number Publication Date
JPS5644365A true JPS5644365A (en) 1981-04-23

Family

ID=14744734

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11877479A Pending JPS5644365A (en) 1979-09-18 1979-09-18 Drip-proof type motor

Country Status (1)

Country Link
JP (1) JPS5644365A (en)

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