GB1266622A - - Google Patents
Info
- Publication number
- GB1266622A GB1266622A GB1266622DA GB1266622A GB 1266622 A GB1266622 A GB 1266622A GB 1266622D A GB1266622D A GB 1266622DA GB 1266622 A GB1266622 A GB 1266622A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rotor
- brush
- brushes
- liquid
- annular surface
- 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
- H02K31/00—Acyclic motors or generators, i.e. DC machines having drum or disc armatures with continuous current collectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
- H01R39/30—Liquid contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/64—Devices for uninterrupted current collection
- H01R39/646—Devices for uninterrupted current collection through an electrical conductive fluid
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
1,266,622. Brush gear for dynamo-electric machines. GENERAL ELECTRIC CO. Ltd. 4 Aug., 1970 [4 Aug., 1969], No. 38961/69. Heading H2A. In an arrangement for transferring current between the stator and rotor of an electrical machine, a brush member skates on a thin film of liquid formed on an annular surface. The liquid may be mercury, or an NaK or Gain alloy, and is retained on the annular surface by centrifugal or surface tension forces. In Fig. 1 metal brushes 2 are carried in slots 4 in the periphery 5 of the rotor 1 and are urged against an annular surface 7 centrifugally. The liquid is supplied through channels 8, 9 in the rotor and brush, and the lower brush surface 6 is chamfered from the leading to the trailing edge to ensure laminar liquid flow in the layer 10. In modifications, the rotor periphery 5 may fit inside a slot in the brush, or member 1 may be the stator and annulus 3, the rotor (Fig. 2, not shown), in which case a spring (15) urges the brush towards the surface 7. In a further modification (Fig. 6, not shown), the brush 34 comprises a bundle of flexible metal or carbon fibres fixed to the rotor. In Fig. 3 a ring of arcuate brushes 19 are each pivotally mounted (20) on an annular stator part 18, and skate over a liquid layer on an annular surface 22 of the rotor. The pivots 20 may be spring-loaded, and two such rings of brushes may be provided. In Fig. 4 brushes 26 are carried at the ends of resilient strips 25 mounted on the stator or rotor 24. Alternatively, the strips 25 may be used alone, without the brushes 26. In another version (Fig. 5, not shown) resilient fingers (31) extend in the axial direction from, and are formed integrally with, the rotor disc (30), the fingers terminating in brush portions (33) which are thrown outwards, centrifugally, towards the annular surface carrying the liquid layer.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3896169 | 1969-08-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1266622A true GB1266622A (en) | 1972-03-15 |
Family
ID=10406766
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1266622D Expired GB1266622A (en) | 1969-08-04 | 1969-08-04 |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1266622A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0273134A2 (en) * | 1986-12-08 | 1988-07-06 | General Electric Company | Improved liquid metal collector for acyclic generator |
WO2005062432A1 (en) * | 2003-12-22 | 2005-07-07 | Siemens Aktiengesellschaft | Slip-ring arrangement |
GB2483984A (en) * | 2010-09-21 | 2012-03-28 | Schlumberger Technology Corp | Brush for fluid-filled motor |
CN106684660A (en) * | 2016-12-20 | 2017-05-17 | 湖南顶立科技有限公司 | Novel electric brush device with touching kept based on centrifugal force |
CN107994435A (en) * | 2017-12-18 | 2018-05-04 | 西安赛隆金属材料有限责任公司 | A kind of centrifugal contact brush |
CN114094407A (en) * | 2021-11-22 | 2022-02-25 | 江苏科技大学 | Conductive slip ring capable of automatically keeping contact force |
WO2022135748A1 (en) * | 2020-12-23 | 2022-06-30 | Schunk Carbon Technology Gmbh | Contacting device for transmitting electric currents, and machines comprising such a contacting device |
WO2024160318A1 (en) * | 2023-02-01 | 2024-08-08 | Schaeffler Technologies AG & Co. KG | Contactless current-transmission device with liquid for an electrical drive machine, and electrical drive machine |
-
1969
- 1969-08-04 GB GB1266622D patent/GB1266622A/en not_active Expired
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0273134A2 (en) * | 1986-12-08 | 1988-07-06 | General Electric Company | Improved liquid metal collector for acyclic generator |
EP0273134A3 (en) * | 1986-12-08 | 1988-07-20 | General Electric Company | Improved liquid metal collector for acyclic generator |
WO2005062432A1 (en) * | 2003-12-22 | 2005-07-07 | Siemens Aktiengesellschaft | Slip-ring arrangement |
GB2483984A (en) * | 2010-09-21 | 2012-03-28 | Schlumberger Technology Corp | Brush for fluid-filled motor |
CN106684660A (en) * | 2016-12-20 | 2017-05-17 | 湖南顶立科技有限公司 | Novel electric brush device with touching kept based on centrifugal force |
CN106684660B (en) * | 2016-12-20 | 2019-03-26 | 湖南顶立科技有限公司 | A kind of Novel electric brush device being kept in contact based on centrifugal force |
CN107994435A (en) * | 2017-12-18 | 2018-05-04 | 西安赛隆金属材料有限责任公司 | A kind of centrifugal contact brush |
WO2022135748A1 (en) * | 2020-12-23 | 2022-06-30 | Schunk Carbon Technology Gmbh | Contacting device for transmitting electric currents, and machines comprising such a contacting device |
CN114094407A (en) * | 2021-11-22 | 2022-02-25 | 江苏科技大学 | Conductive slip ring capable of automatically keeping contact force |
CN114094407B (en) * | 2021-11-22 | 2024-05-28 | 江苏科技大学 | Conductive slip ring capable of automatically maintaining contact force |
WO2024160318A1 (en) * | 2023-02-01 | 2024-08-08 | Schaeffler Technologies AG & Co. KG | Contactless current-transmission device with liquid for an electrical drive machine, and electrical drive machine |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |