JPS56145761A - Permanent magnet type synchronous motor - Google Patents
Permanent magnet type synchronous motorInfo
- Publication number
- JPS56145761A JPS56145761A JP4680580A JP4680580A JPS56145761A JP S56145761 A JPS56145761 A JP S56145761A JP 4680580 A JP4680580 A JP 4680580A JP 4680580 A JP4680580 A JP 4680580A JP S56145761 A JPS56145761 A JP S56145761A
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- power transmission
- transmission shaft
- protection case
- synchronous motor
- 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/278—Surface mounted magnets; Inset magnets
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
PURPOSE:To reduce the magnetic leakage in a permanent magnet type synchronous motor by disposing a plurality of permanent magnets of tile shape in a cylindrical protection case and press-fitting a power transmission shaft into the inside of a permanent magnet, thereby reducing the gap between the magnet and the stator. CONSTITUTION:Permanent magnets 2 of tile shape are disposed in a cylindrical protection case 1. Then, a power transmission shaft 3 is inserted into the inner diameter R3 of the permanent magnets 2. Since there is a relationship of (the inner diameter R1 of the protection case 1)-(the outer diameter R2 of the permanent magnet 2)<(the outer diameter R4 of the power transmission shaft 3)-(the inner diameter R3 of the permanent magnet 2), the permanent magnet 2 is expanded outwardly, and the protection case 1, the permanent magnet 2 and the power transmission shaft 3 are integrally secured. Thus, the gap between the stator and the permanent magnet can be reduced, and the leakage magnetic flux can be reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4680580A JPS56145761A (en) | 1980-04-11 | 1980-04-11 | Permanent magnet type synchronous motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4680580A JPS56145761A (en) | 1980-04-11 | 1980-04-11 | Permanent magnet type synchronous motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56145761A true JPS56145761A (en) | 1981-11-12 |
Family
ID=12757539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4680580A Pending JPS56145761A (en) | 1980-04-11 | 1980-04-11 | Permanent magnet type synchronous motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56145761A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0386239A1 (en) * | 1988-08-19 | 1990-09-12 | Nauchno-Proizvodstvennoe Obiedinenie "Magneton" | Multipole rotor of electric machine |
JP2014030352A (en) * | 2013-10-07 | 2014-02-13 | Asmo Co Ltd | Method of manufacturing rotor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS557587B2 (en) * | 1978-07-05 | 1980-02-26 |
-
1980
- 1980-04-11 JP JP4680580A patent/JPS56145761A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS557587B2 (en) * | 1978-07-05 | 1980-02-26 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0386239A1 (en) * | 1988-08-19 | 1990-09-12 | Nauchno-Proizvodstvennoe Obiedinenie "Magneton" | Multipole rotor of electric machine |
JP2014030352A (en) * | 2013-10-07 | 2014-02-13 | Asmo Co Ltd | Method of manufacturing rotor |
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