JPS5644306A - Control circuit for motor - Google Patents

Control circuit for motor

Info

Publication number
JPS5644306A
JPS5644306A JP11937979A JP11937979A JPS5644306A JP S5644306 A JPS5644306 A JP S5644306A JP 11937979 A JP11937979 A JP 11937979A JP 11937979 A JP11937979 A JP 11937979A JP S5644306 A JPS5644306 A JP S5644306A
Authority
JP
Japan
Prior art keywords
motor
contactor
cooling fan
resistor
input
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
JP11937979A
Other languages
Japanese (ja)
Inventor
Seiki Kikuchi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11937979A priority Critical patent/JPS5644306A/en
Publication of JPS5644306A publication Critical patent/JPS5644306A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Multiple Motors (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

PURPOSE: To attain low noises and high efficiency by simple circuit constitution of low cost by a mechanism wherein a motor for a cooling fan and a contactor for driving a motor for power steering are connected to ensure that input to the motor for the cooling fan is fed from the contactor.
CONSTITUTION: In a control circuit for a motor for a cooling fan cooling a motor 3 for travelling of a battery type fork lift, the number of revolution of the motor 11 for the cooling fan is decreased or the motor 11 is stopped during the time when a car temporarily stops, and noises are lowered. The motor 11 for the cooling fan and a contactor 7 of a motor 8 for power steering are connected to ensure that input to the motor 11 is obtained from the contactor 7 while the input is also acquired from a key switch 9 through a resistor 13 so that the motor 11 for the cooling fan can fully be operated during the time when the car travels. The contactor 7 for short- circuiting the resistor is mounted at both ends of the resistor 13, and the contactor 7 functions by the making of a forward and reverse turn change-over switch 5.
COPYRIGHT: (C)1981,JPO&Japio
JP11937979A 1979-09-19 1979-09-19 Control circuit for motor Pending JPS5644306A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11937979A JPS5644306A (en) 1979-09-19 1979-09-19 Control circuit for motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11937979A JPS5644306A (en) 1979-09-19 1979-09-19 Control circuit for motor

Publications (1)

Publication Number Publication Date
JPS5644306A true JPS5644306A (en) 1981-04-23

Family

ID=14760046

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11937979A Pending JPS5644306A (en) 1979-09-19 1979-09-19 Control circuit for motor

Country Status (1)

Country Link
JP (1) JPS5644306A (en)

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