JPS5644365A - Drip-proof type motor - Google Patents
Drip-proof type motorInfo
- 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
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.
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) |
-
1979
- 1979-09-18 JP JP11877479A patent/JPS5644365A/en active Pending
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