JPS5468909A - Electric motor - Google Patents

Electric motor

Info

Publication number
JPS5468909A
JPS5468909A JP13571577A JP13571577A JPS5468909A JP S5468909 A JPS5468909 A JP S5468909A JP 13571577 A JP13571577 A JP 13571577A JP 13571577 A JP13571577 A JP 13571577A JP S5468909 A JPS5468909 A JP S5468909A
Authority
JP
Japan
Prior art keywords
rotor magnet
rotary shaft
jig
driving coil
rotor
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
JP13571577A
Other languages
Japanese (ja)
Inventor
Seiji Goto
Hidemasa Masuda
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 JP13571577A priority Critical patent/JPS5468909A/en
Publication of JPS5468909A publication Critical patent/JPS5468909A/en
Pending legal-status Critical Current

Links

Landscapes

  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

PURPOSE: To keep the gap between a rotor magnet and a driving coil at optimum, by securing the rotor magnet to a rotary shaft with a jig to set a predetermined distance between the bottom of the rotor magnet and one end of the rotary shaft.
CONSTITUTION: This motor comprises the motor magnet 1 shaped like a disc and having a plurality of poles magnetized in the direction of the thickness, the driving coil 3 for driving the rotor magnet, the rotary shaft 4 which rotates together with the rotor magnet, and a bearing 6. One end of the rotary shaft 4 is inserted into a hole 22, which is opend in the jig 9 and has it bottom at a predetermined distance h from the main side 20 of the jig 9. The rotor magnet 1 is tightly fitted on the other end of the rotary shaft 4 in contact with the main side 20 of the jig 9. Thereby, a rotor is formed. The gap between the rotor magnet 1 and the driving coil 3 is kept at optimum without adjusting the magnetic gap of the mangetic circuit. Therefore, the time of assembling is shortened.
COPYRIGHT: (C)1979,JPO&Japio
JP13571577A 1977-11-14 1977-11-14 Electric motor Pending JPS5468909A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13571577A JPS5468909A (en) 1977-11-14 1977-11-14 Electric motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13571577A JPS5468909A (en) 1977-11-14 1977-11-14 Electric motor

Publications (1)

Publication Number Publication Date
JPS5468909A true JPS5468909A (en) 1979-06-02

Family

ID=15158180

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13571577A Pending JPS5468909A (en) 1977-11-14 1977-11-14 Electric motor

Country Status (1)

Country Link
JP (1) JPS5468909A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4827203A (en) * 1971-08-17 1973-04-10

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4827203A (en) * 1971-08-17 1973-04-10

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