GB1052338A - - Google Patents
Info
- Publication number
- GB1052338A GB1052338A GB1052338DA GB1052338A GB 1052338 A GB1052338 A GB 1052338A GB 1052338D A GB1052338D A GB 1052338DA GB 1052338 A GB1052338 A GB 1052338A
- Authority
- GB
- United Kingdom
- Prior art keywords
- winding
- brush
- switch
- motor
- commutator
- 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
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/02—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting
- H02K23/20—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having additional brushes spaced intermediately of the main brushes on the commutator, e.g. cross-field machines, metadynes, amplidynes or other armature-reaction excited machines
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc Machiner (AREA)
- Control Of Direct Current Motors (AREA)
Abstract
1,052,338. Electric motors having permanent magnets; control of D.C. motors. JOSEPH LUCAS (INDUSTRIES) Ltd. Aug. 24, 1965 [Oct. 21, 1964], No. 42871/64. Headings H2A and H2J. [Also in Division A4] In a windscreen wiper motor for road vehicles, comprising a housing supporting permanent magnets and, rotatable relatively thereto, a rotor supporting the motor winding to which current is fed through a commutator, three brushes 11 . . . 13 engage the commutator in an arrangement such that direct current applied to different brush pairs operates the motor at different speeds. Selection is by a driver-operated switch 16 which in the low speed position shown energizes the brushes 11, 12 from supply terminals 14, 15 connected to the vehicle battery. An operation of the switch to reverse, Fig. 2 (not shown), the operative conditions of movable contact arms 19, 20 substitutes brush 13, of smaller circumferential length, for brush 12, to use less of the winding and provide high speed operation. Further operation of the switch to the off position, Fig. 3 (not shown), reverts to low speed conditions until the wipers reach their parking position, whereupon a contact arm 25 engages a contact 26 to open the supply circuit and short.circuit the winding to provide braking.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1052338A true GB1052338A (en) | 1900-01-01 |
Family
ID=1756957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1052338D Expired GB1052338A (en) |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1052338A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5419628Y1 (en) * | 1973-07-17 | 1979-07-19 | ||
| DE3812190C1 (en) * | 1988-04-13 | 1989-08-31 | Robert Bosch Gmbh, 7000 Stuttgart, De | DC motor |
-
0
- GB GB1052338D patent/GB1052338A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5419628Y1 (en) * | 1973-07-17 | 1979-07-19 | ||
| DE3812190C1 (en) * | 1988-04-13 | 1989-08-31 | Robert Bosch Gmbh, 7000 Stuttgart, De | DC motor |
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