FR2306561A1 - Liquid metal current collector for homopolar machine - using magnetic fields to contain collecting medium eliminates need for baffles - Google Patents

Liquid metal current collector for homopolar machine - using magnetic fields to contain collecting medium eliminates need for baffles

Info

Publication number
FR2306561A1
FR2306561A1 FR7510629A FR7510629A FR2306561A1 FR 2306561 A1 FR2306561 A1 FR 2306561A1 FR 7510629 A FR7510629 A FR 7510629A FR 7510629 A FR7510629 A FR 7510629A FR 2306561 A1 FR2306561 A1 FR 2306561A1
Authority
FR
France
Prior art keywords
liquid metal
gap
baffles
current collector
magnetic fields
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.)
Withdrawn
Application number
FR7510629A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of FR2306561A1 publication Critical patent/FR2306561A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H02K31/04—Acyclic motors or generators, i.e. DC machines having drum or disc armatures with continuous current collectors with at least one liquid-contact collector

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Motor Or Generator Current Collectors (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

The application is to very heavy current homopolar machines of low or high speed, and eliminates the need for sealing or baffling arrangements to keep the liquid metal in place. The metal is in the gap between the stationary and rotating members of the contact assembly. Inserts of magnetic material are placed at each end of the gap and excited by current in windings concentric with the gap. The interaction between the primary magnetic field produced by the coils and the secondary fields set up by induced eddy currents in the liquid metal produces axial forces which hold the metal inside the gap.
FR7510629A 1974-04-05 1975-04-04 Liquid metal current collector for homopolar machine - using magnetic fields to contain collecting medium eliminates need for baffles Withdrawn FR2306561A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742416765 DE2416765C3 (en) 1974-04-05 1974-04-05 Electrical contact device of a machine with a contact liquid

Publications (1)

Publication Number Publication Date
FR2306561A1 true FR2306561A1 (en) 1976-10-29

Family

ID=5912296

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7510629A Withdrawn FR2306561A1 (en) 1974-04-05 1975-04-04 Liquid metal current collector for homopolar machine - using magnetic fields to contain collecting medium eliminates need for baffles

Country Status (3)

Country Link
JP (1) JPS50136604A (en)
DE (1) DE2416765C3 (en)
FR (1) FR2306561A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0046245A1 (en) * 1980-08-18 1982-02-24 Siemens Aktiengesellschaft Device for gripping metallic workpieces
FR2755799A1 (en) * 1996-11-12 1998-05-15 Toshiba Kk Slip ring arrangement for use in extreme conditions e.g. in vacuum

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29619491U1 (en) * 1996-11-09 1996-12-19 MAN Roland Druckmaschinen AG, 63075 Offenbach Signal transmission within a printing press
DE10360548A1 (en) * 2003-12-22 2005-07-21 Siemens Ag Slip ring assembly
DE102004027534A1 (en) * 2004-06-04 2005-12-29 Siemens Ag Wind turbine
DE102005045959A1 (en) * 2005-09-26 2007-04-19 Siemens Ag Device for electrically conductive connection via liquid metal and application of such an electrically conductive connection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0046245A1 (en) * 1980-08-18 1982-02-24 Siemens Aktiengesellschaft Device for gripping metallic workpieces
FR2755799A1 (en) * 1996-11-12 1998-05-15 Toshiba Kk Slip ring arrangement for use in extreme conditions e.g. in vacuum

Also Published As

Publication number Publication date
DE2416765A1 (en) 1975-10-23
JPS50136604A (en) 1975-10-30
DE2416765B2 (en) 1979-06-13
DE2416765C3 (en) 1980-02-21

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Legal Events

Date Code Title Description
ST Notification of lapse