Title:
LIQUID-COOLED MOTOR OF SMALL DIAMETER
Document Type and Number:
Japanese Patent JPH0662547
Kind Code:
A
Abstract:
PURPOSE: To provide a liquid-cooled motor structure of small outer diameter while maintaining a predetermined output and cooling capacity.
CONSTITUTION: A liquid-cooled motor a rotor 22, a stator 26 around the rotor, and a cooling system in the periphery 27a of the stator. To reduce the outer diameter of the motor, a thin annular magnetic circuit is formed between the periphery of the stator core 27 and the intermediate circular surface that is tangent to the bottom of each winding slots 28 in the stator core 27. The cooling system includes case members 31 and 32 that incorporate a channel of coolant in the periphery of the stator. The inner case 31 is composed of magnetic material that form the magnetic circuit.
Inventors:
UCHIDA HIROYUKI
YAMAMOTO TOMOYOSHI
YAMAMOTO TOMOYOSHI
Application Number:
JP20914792A
Publication Date:
March 04, 1994
Filing Date:
August 05, 1992
Export Citation:
Assignee:
FANUC LTD
International Classes:
H02K1/20; H02K5/20; H02K9/19; (IPC1-7): H02K9/19; H02K1/20; H02K5/20
Attorney, Agent or Firm:
Aoki Akira (4 outside)