Title:
MOTOR DRIVE DEVICE OF COOLANT COMPRESSOR
Document Type and Number:
Japanese Patent JPS60190194
Kind Code:
A
Abstract:
PURPOSE:To continue the operation by switching and connecting to a commercial power source when a protecting unit is operated, returning to an inverter operation after the prescribed time, and operating by the commercial power source when the returning number becomes the prescribed value. CONSTITUTION:Relays P1, D2 are energized and controlled at an inverter operating time. Thus, contacts P11, D21 are closed, and a motor 6 is operated by an inverter 4. When the inverter protecting device is operated, a timer mechanism 8 is operated. Thus, the motor 6 is driven by a commercial power source 1 for the prescribed time. After the prescribed time is elapsed, the motor 6 is again driven through the inverter 4. At this time, a signal is applied to a counter mechanism 9. When the value of the mechanism 9 becomes the prescribed value, a relay R2 is energized. Thus, the relays P1, D2 are deenergized, the D1 is energized, and the motor 4 is driven by the commercial power source 1.
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Inventors:
UEHARA SHINPACHIROU
TAZAKI TOMIO
TAZAKI TOMIO
Application Number:
JP4601984A
Publication Date:
September 27, 1985
Filing Date:
March 09, 1984
Export Citation:
Assignee:
SANYO ELECTRIC CO
TOKYO SANYO ELECTRIC CO
TOKYO SANYO ELECTRIC CO
International Classes:
H02P27/06; F24F11/02; (IPC1-7): F24F11/02; H02P7/63
Attorney, Agent or Firm:
Takuji Nishino