GB1210235A - Improvements in or relating to electric motors - Google Patents
Improvements in or relating to electric motorsInfo
- Publication number
- GB1210235A GB1210235A GB2268967A GB2268967A GB1210235A GB 1210235 A GB1210235 A GB 1210235A GB 2268967 A GB2268967 A GB 2268967A GB 2268967 A GB2268967 A GB 2268967A GB 1210235 A GB1210235 A GB 1210235A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rotor
- coils
- polepieces
- stator
- main
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/04—Asynchronous induction motors for single phase current
- H02K17/10—Motors with auxiliary phase obtained by split-pole carrying short-circuited windings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/49—Devices characterised by the use of electric or magnetic means for measuring angular speed using eddy currents
- G01P3/495—Devices characterised by the use of electric or magnetic means for measuring angular speed using eddy currents where the indicating means responds to forces produced by the eddy currents and the generating magnetic field
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/12—Asynchronous induction motors for multi-phase current
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Induction Machinery (AREA)
Abstract
1,210,235. Induction motors. MULLARD Ltd. 29 Dec., 1967 [16 May, 1967], No. 22689/67. Heading H2A. A disc rotor split-phase or shaded pole eddy current motor has main and auxiliary stator coils located around the motor axis and main and auxiliary magnetic circuits located on both sides of the rotor, each magnetic circuit having at least four polepieces located around the axis and each pole of each circuit being positioned between two adjacent poles of the other circuit. The coils may be located on the same side of the rotor R, Fig. 6, or on opposite sides, Fig. 7 (only one side of rotor shown), or each may be split into two parts with one part on each side of the rotor. The coils are fed with out of phase currents or one may be shortcircuited to form a shading coil. The polepieces are formed from stamped or pressed sheet metal and two adjacent poles 2, 3 of the main and auxiliary circuits may be formed from a single stamping which may be continuous or may have a radial slot to separate the poles. The two halves of the stator may be of the same construction or the side opposite the coils (where the coils are on the same side of the rotor) may be formed of a single stamping having a plurality of radial slots to form the polepieces. Where the coils are on opposite sides of the rotor, Fig. 7, each stator half may include a toothed ring T, the teeth being located opposite the polepieces of the other stator half to act as return paths for the flux. The motor is said to be of use as a tachometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2268967A GB1210235A (en) | 1967-05-16 | 1967-05-16 | Improvements in or relating to electric motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2268967A GB1210235A (en) | 1967-05-16 | 1967-05-16 | Improvements in or relating to electric motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1210235A true GB1210235A (en) | 1970-10-28 |
Family
ID=10183525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2268967A Expired GB1210235A (en) | 1967-05-16 | 1967-05-16 | Improvements in or relating to electric motors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1210235A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2188793A (en) * | 1986-03-21 | 1987-10-07 | Philips Nv | Electric motor stator with axially forming pole teeth |
| EP1369612A2 (en) * | 2002-06-06 | 2003-12-10 | Minebea Co., Ltd. | Toothed electromagnetic clutch-brake |
| CN103604895B (en) * | 2013-12-05 | 2015-04-22 | 武汉武药科技有限公司 | Method for analytical separation of (-) benzoyl Corey lactone optical isomers by HPLC |
-
1967
- 1967-05-16 GB GB2268967A patent/GB1210235A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2188793A (en) * | 1986-03-21 | 1987-10-07 | Philips Nv | Electric motor stator with axially forming pole teeth |
| GB2188793B (en) * | 1986-03-21 | 1989-11-15 | Philips Nv | Electric motor |
| EP1369612A2 (en) * | 2002-06-06 | 2003-12-10 | Minebea Co., Ltd. | Toothed electromagnetic clutch-brake |
| EP1369612A3 (en) * | 2002-06-06 | 2005-04-27 | Minebea Co., Ltd. | Toothed electromagnetic clutch-brake |
| CN103604895B (en) * | 2013-12-05 | 2015-04-22 | 武汉武药科技有限公司 | Method for analytical separation of (-) benzoyl Corey lactone optical isomers by HPLC |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |