GB1165186A - Improvements in or relating to Electric Motors - Google Patents
Improvements in or relating to Electric MotorsInfo
- Publication number
- GB1165186A GB1165186A GB5391766A GB5391766A GB1165186A GB 1165186 A GB1165186 A GB 1165186A GB 5391766 A GB5391766 A GB 5391766A GB 5391766 A GB5391766 A GB 5391766A GB 1165186 A GB1165186 A GB 1165186A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rotor
- spring
- motor
- brake
- shaft
- 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
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
- H02K7/1021—Magnetically influenced friction brakes
- H02K7/1026—Magnetically influenced friction brakes using stray fields
- H02K7/1028—Magnetically influenced friction brakes using stray fields axially attracting the brake armature in the frontal area of the magnetic core
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Centrifugal Separators (AREA)
Abstract
1,165,186. Clutch/brake units; disc brakes. INDIVE G.m.b.H. 1 Dec., 1966, No. 53917/66. Headings F2E and F2L. [Also in Division H2] The invention provides a squirrel-cage motor driving, e.g., a laundry spin dryer or a centrifuge on a vertical axis; the motor is associated with a mechanical brake; and the induced rotor field holds up, during running, a magnetic axially-movable member to prevent the brake being applied. As shown, the mechanism provides, in effect, three clutches between, on the one hand, the rotor and its shaft and, on the other hand, the brake. The parts are shown in the positions they occupy while the motor is running. An end ring 12 of the squirrel cage is accommodated in a U-section yoke M of magnetic material which has apertures at 15, opposite the rotor grooves, through which the bars 13 extend, the cage being a one-piece aluminium casting. The induced field is effective, even during running at maximum speed, to retain an axiallymovable annular body 21, of magnetic material, in contact with the yoke M against the force of a helical compression spring 22 which is anchored to the rotor 11 and may be anchored to the body 21. Other clutch parts comprise a sleeve 41 with conical top 411, a helical spring 44 anchored at its top to sleeve 41, a coupling member 43 loose on the rotor shaft 10 and having a flange 43<SP>1</SP>-these parts being stationary while the motor is running-and finally another coupling member 42 keyed to the rotor shaft 10 and spaced from spring 44. The brake is constituted by the rotatable flange 43<SP>1</SP>, lying between friction surfaces located on a stationary disc 31 adjustably loaded by springs 33 and on the end of the motor casing. In operation, when the motor current is switched off, the body 21, which is not connected with shaft 10, is pushed downwards by the spring 22 and, still rotating, it makes contact with sleeve 41. The now-rotating sleeve 41 winds the spring 44 so that it frictionally couples the members 42, 43, so that member 43 rotates. Member 43 is braked by the friction surfaces acting on its flange 43<SP>1</SP> whereby, through spring 44 and member 42, the shaft 10 and rotor 11 are brought to rest. (Thereafter, the resilience of springs 44 and 22 permits limited rotation, in both directions of the dryer or centrifuge.)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5391766A GB1165186A (en) | 1966-12-01 | 1966-12-01 | Improvements in or relating to Electric Motors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5391766A GB1165186A (en) | 1966-12-01 | 1966-12-01 | Improvements in or relating to Electric Motors |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1165186A true GB1165186A (en) | 1969-09-24 |
Family
ID=10469400
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5391766A Expired GB1165186A (en) | 1966-12-01 | 1966-12-01 | Improvements in or relating to Electric Motors |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1165186A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0508949A1 (en) * | 1991-04-09 | 1992-10-14 | Somfy | Method for mounting a braking motor |
CN102938595A (en) * | 2012-10-19 | 2013-02-20 | 咸宁三宁机电有限公司 | Brake motor for soft start of composite cage bar solid rotor |
CN116495653A (en) * | 2023-06-26 | 2023-07-28 | 纽科伦(新乡)起重机有限公司 | Motor axial magnetic flux brake and motor manufactured by same |
-
1966
- 1966-12-01 GB GB5391766A patent/GB1165186A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0508949A1 (en) * | 1991-04-09 | 1992-10-14 | Somfy | Method for mounting a braking motor |
FR2675321A1 (en) * | 1991-04-09 | 1992-10-16 | Somfy | METHOD FOR ASSEMBLING AN ELECTRIC FEIN MOTOR |
US5220721A (en) * | 1991-04-09 | 1993-06-22 | Somfy | Method for mounting an electrical brake motor |
CN102938595A (en) * | 2012-10-19 | 2013-02-20 | 咸宁三宁机电有限公司 | Brake motor for soft start of composite cage bar solid rotor |
CN116495653A (en) * | 2023-06-26 | 2023-07-28 | 纽科伦(新乡)起重机有限公司 | Motor axial magnetic flux brake and motor manufactured by same |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |