JPS5574356A - Linear electric machine - Google Patents

Linear electric machine

Info

Publication number
JPS5574356A
JPS5574356A JP14545478A JP14545478A JPS5574356A JP S5574356 A JPS5574356 A JP S5574356A JP 14545478 A JP14545478 A JP 14545478A JP 14545478 A JP14545478 A JP 14545478A JP S5574356 A JPS5574356 A JP S5574356A
Authority
JP
Japan
Prior art keywords
coil
pole
auxiliary
groove
salient poles
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
JP14545478A
Other languages
Japanese (ja)
Inventor
Makoto Goto
Kazuji Kobayashi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP14545478A priority Critical patent/JPS5574356A/en
Publication of JPS5574356A publication Critical patent/JPS5574356A/en
Pending legal-status Critical Current

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  • Linear Motors (AREA)

Abstract

PURPOSE: To reduce cogging and simplify the structure by providing, at the ends of each coil-mounting salient pole and and each auxiliary salient pole of an armature core, an auxiliary groove shallower than a coil-fitting groove.
CONSTITUTION: Armature iron core 13 having coil-mounting salient poles 13a1∼ 13b2 and auxiliary salient poles 14a∼14c is placed opposite field unit 12 having an N pole, a non-magnetic pole and an S pole of equal pitches T1. The effective pitches of coil-mounting salient poles 13a1∼13b2 are set nearly equal to T1. The effective pitches of auxiliary salient poles 14a∼14c are set at T1/2. At the end of each salient pole is provided auxiliary groove 18 shallower than coil-fitting groove 17. Equal pitches, T1/4, for example, are set for auxiliary groove 18 and coil-fitting groove 17. By this, the period of magnetic variation of armature iron core 13 is shortened and cogging is reduced.
COPYRIGHT: (C)1980,JPO&Japio
JP14545478A 1978-11-25 1978-11-25 Linear electric machine Pending JPS5574356A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14545478A JPS5574356A (en) 1978-11-25 1978-11-25 Linear electric machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14545478A JPS5574356A (en) 1978-11-25 1978-11-25 Linear electric machine

Publications (1)

Publication Number Publication Date
JPS5574356A true JPS5574356A (en) 1980-06-04

Family

ID=15385594

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14545478A Pending JPS5574356A (en) 1978-11-25 1978-11-25 Linear electric machine

Country Status (1)

Country Link
JP (1) JPS5574356A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1213819A2 (en) * 2000-12-11 2002-06-12 Hitachi, Ltd. Linear motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1213819A2 (en) * 2000-12-11 2002-06-12 Hitachi, Ltd. Linear motor
EP1213819A3 (en) * 2000-12-11 2003-01-22 Hitachi, Ltd. Linear motor

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