JPS5785570A - Brushless linear motor - Google Patents

Brushless linear motor

Info

Publication number
JPS5785570A
JPS5785570A JP55160862A JP16086280A JPS5785570A JP S5785570 A JPS5785570 A JP S5785570A JP 55160862 A JP55160862 A JP 55160862A JP 16086280 A JP16086280 A JP 16086280A JP S5785570 A JPS5785570 A JP S5785570A
Authority
JP
Japan
Prior art keywords
pole teeth
recess
linear motor
detection signal
magnetic material
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
JP55160862A
Other languages
Japanese (ja)
Inventor
Nobuhiro Ueda
Noriaki Wakabayashi
Yasutaka Nakajima
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 JP55160862A priority Critical patent/JPS5785570A/en
Publication of JPS5785570A publication Critical patent/JPS5785570A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
    • H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
    • H02K41/033—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type with armature and magnets on one member, the other member being a flux distributor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • H02K11/22—Optical devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • H02K29/10—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using light effect devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Linear Motors (AREA)

Abstract

PURPOSE:To stabilize a position detection signal by inserting a light reflector formed of non-magnetic material in a recess of a stator pole teeth. CONSTITUTION:A non-magnetic material 8 is filled in a uniform height h in a recess 4b located between pole teeth 4a formed on a stator 4. The surface of the material 8 is treated to be largely different from the reflectivity of the surface of the pole teeth 4a. Three reflection type photosensors are displaced at 120 deg. with each other in a non-contact position detecting block 6 provided on a movable unit 5. In this manner, stable sinusoidal position detection signal waveform can be obtained from the photosensor.
JP55160862A 1980-11-17 1980-11-17 Brushless linear motor Pending JPS5785570A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55160862A JPS5785570A (en) 1980-11-17 1980-11-17 Brushless linear motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55160862A JPS5785570A (en) 1980-11-17 1980-11-17 Brushless linear motor

Publications (1)

Publication Number Publication Date
JPS5785570A true JPS5785570A (en) 1982-05-28

Family

ID=15723978

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55160862A Pending JPS5785570A (en) 1980-11-17 1980-11-17 Brushless linear motor

Country Status (1)

Country Link
JP (1) JPS5785570A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998021810A1 (en) * 1996-11-13 1998-05-22 Dr. Johannes Heidenhain Gmbh Optical position-measurement device
WO2006108855A1 (en) * 2005-04-15 2006-10-19 Siemens Aktiengesellschaft Synchronous linear motor with remote scanning of the tooth structure of the secondary part
JP2009153371A (en) * 2007-11-30 2009-07-09 Sinfonia Technology Co Ltd Motor
CN106981968A (en) * 2017-05-03 2017-07-25 南京航空航天大学 The continuous pole dual-side flat plate type permanent-magnetism linear motor of independent winding

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998021810A1 (en) * 1996-11-13 1998-05-22 Dr. Johannes Heidenhain Gmbh Optical position-measurement device
WO2006108855A1 (en) * 2005-04-15 2006-10-19 Siemens Aktiengesellschaft Synchronous linear motor with remote scanning of the tooth structure of the secondary part
US7679226B2 (en) 2005-04-15 2010-03-16 Siemens Aktiengesellschaft Synchronous linear motor with non-contacting scanning of the toothed structure of the secondary part
JP2009153371A (en) * 2007-11-30 2009-07-09 Sinfonia Technology Co Ltd Motor
CN106981968A (en) * 2017-05-03 2017-07-25 南京航空航天大学 The continuous pole dual-side flat plate type permanent-magnetism linear motor of independent winding

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