EP0043316B1 - Procédé de transmission de puissance électrique entre parties tournant à faible vitesse et dispositif pour la mise en oeuvre dudit procédé - Google Patents

Procédé de transmission de puissance électrique entre parties tournant à faible vitesse et dispositif pour la mise en oeuvre dudit procédé Download PDF

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Publication number
EP0043316B1
EP0043316B1 EP19810401006 EP81401006A EP0043316B1 EP 0043316 B1 EP0043316 B1 EP 0043316B1 EP 19810401006 EP19810401006 EP 19810401006 EP 81401006 A EP81401006 A EP 81401006A EP 0043316 B1 EP0043316 B1 EP 0043316B1
Authority
EP
European Patent Office
Prior art keywords
fixed
turning part
turning
flexible electrical
electrical connection
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
Application number
EP19810401006
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0043316A1 (fr
Inventor
Jean-Claude Le Stang
Georges Thomin
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.)
Centre National dEtudes Spatiales CNES
Original Assignee
Centre National dEtudes Spatiales CNES
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 Centre National dEtudes Spatiales CNES filed Critical Centre National dEtudes Spatiales CNES
Publication of EP0043316A1 publication Critical patent/EP0043316A1/fr
Application granted granted Critical
Publication of EP0043316B1 publication Critical patent/EP0043316B1/fr
Expired legal-status Critical Current

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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
    • H01R35/00—Flexible or turnable line connectors, i.e. the rotation angle being limited

Definitions

  • the invention relates to a method of transmitting electrical power between parts rotating at low speed and, in particular, between a fixed part and a rotating part and a device for implementing said method.
  • the aim of the method and the device according to the invention is to overcome the above-mentioned drawbacks by eliminating the connection by sliding contacts in a manner different from that disclosed in document FR-A-2 249 458.
  • the device according to the invention makes it possible, among other things, to increase the quality of the shots in Earth observation satellites, and in telecommunications or direct television satellites to increase the transmitted power.
  • the method of transmitting electrical power between a fixed part and a rotating part consists in making a flexible electrical connection between these two parts and then in interrupting this connection when the rotating part has moved by a determined angle relative to the fixed part. .
  • the electrical connection is then moved so as to cancel the torsion which it has undergone due to the rotation of the rotating part, then the connection between the fixed part and the rotating part is re-established for a new rotation.
  • a flexible electrical connection is made between the rotating part and a mobile intermediate part.
  • the intermediate part is mechanically and electrically coupled with the fixed part.
  • the rotating part has moved by a determined angle with respect to the fixed part, the intermediate part is decoupled from the fixed part and the intermediate part is rotated in the direction of rotation of the rotating part by an equal angle at the determined angle.
  • the single figure partially shows in section an embodiment of a transmission device for implementing the method and its variant described above.
  • This revolution device is placed between the body of the satellite (not shown) and the support for solar panels represented by the flange 1.
  • the outer casing 2 as well as the lower part 3 which is housed in the satellite, are fixed.
  • the casing 2 carries the motor means 4 driving the rotating part or rotor of panels 5 held in the ball bearings 6.
  • the cables 7 coming from the cell panels are connected to a part or connection ring 8A which is a rotating part of the device .
  • This ring is connected by a flexible electrical connection 9 to a second ring 8B secured to the intermediate part 10 which is capable of rotating relative to the fixed part 11.
  • the electrical connection can be formed of several flexible twisted conductors fixed regularly between the two rings.
  • the intermediate part is mounted on ball bearings 12 and carries a crown 13 having at least one peripheral orifice 14 intended to receive a pin 15 mounted at the end of the movable core 16 of an electromagnet 17 fixed on the fixed part .
  • the crown and the electromagnet constitute clutch means between the intermediate part and the fixed part.
  • electrical switch means constituted by electrical contacts 18 disposed at the periphery of the cooperating intermediate part, when the intermediate part and the fixed part are coupled by the clutch, with contacts 19 carried by the mobile armatures of electromagnetic relays 20 placed on the inner periphery of the fixed part.
  • the relay contacts are connected to a distribution socket 21.
  • a drive device 22 is provided between the rotating and intermediate parts.
  • this device consists of an elastic member, arranged along the axis of the rotating and intermediate parts. It is formed, for example, of a filiform torsion element or a ribbon.
  • the elastic member is constituted by the flexible connection 9 itself.
  • At least one of the ends of the torsion element (when the latter is present in the form of a wire or a ribbon) and one of the ends of the flexible connection are fixed to means capable of elastic elongation, for example membranes with axial deformation 23 and 24.
  • the angular displacement of the rotating part with respect to the fixed part is defined by a position detector 25 placed between the two parts and constituted, for example, by a magnetic field variation detector. This detector acts on the contact opening control means between the intermediate part and the fixed part as well as on the clutch means.
  • the transmission of energy by the device described above will necessarily include an interruption when the rotating part has made approximately one revolution relative to the fixed part. If this interruption is unacceptable, it will be possible to provide two intermediate parts, each rotating by a half-turn, the angle take-up operations of one of the parts being carried out when the other part is in service. The relay contacts of each of the parts are then mounted in parallel.
  • the device with two intermediate parts allows, by mounting the relays in series-parallel, a certain redundancy in the event of failure of one of the devices.
  • the energy transmission method and the device for its implementation by eliminating sliding contacts, bring an increase in the life of the contacts, an increase in the transmitted power and a reduction in the disturbing torques induced by friction during the use of sliding contacts.
  • the reaction torque of the flexible electrical connection and of the drive device is low and reproducible, which has the consequence of reducing the disturbing effects on the satellite and of increasing certain performances, such as, for example: the quality of grip. of view on geostationary satellites.

Landscapes

  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Mechanical Operated Clutches (AREA)
  • Mechanisms For Operating Contacts (AREA)
EP19810401006 1980-06-27 1981-06-23 Procédé de transmission de puissance électrique entre parties tournant à faible vitesse et dispositif pour la mise en oeuvre dudit procédé Expired EP0043316B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8014381 1980-06-27
FR8014381A FR2485821A1 (fr) 1980-06-27 1980-06-27 Procede de transmission de puissance electrique entre parties tournant a faible vitesse et dispositif pour la mise en oeuvre dudit procede

Publications (2)

Publication Number Publication Date
EP0043316A1 EP0043316A1 (fr) 1982-01-06
EP0043316B1 true EP0043316B1 (fr) 1984-01-25

Family

ID=9243617

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810401006 Expired EP0043316B1 (fr) 1980-06-27 1981-06-23 Procédé de transmission de puissance électrique entre parties tournant à faible vitesse et dispositif pour la mise en oeuvre dudit procédé

Country Status (4)

Country Link
US (1) US4409493A (enExample)
EP (1) EP0043316B1 (enExample)
DE (1) DE3162022D1 (enExample)
FR (1) FR2485821A1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1087341C (zh) * 1996-04-16 2002-07-10 普罗格特-甘布尔公司 含有选择的中链支化的表面活性剂的洗涤剂组合物

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2671864A (en) * 1949-07-27 1954-03-09 Lip Horlogerie Electromagnetic oscillatory motor
US2933629A (en) * 1955-08-22 1960-04-19 Filigranbau Stefan Keller Oscillating electric motor
US3510670A (en) * 1968-03-15 1970-05-05 Floyd M Uhland Two coil,triple point ignition system
US3599165A (en) * 1970-03-02 1971-08-10 Litton Precision Prod Inc Rotary conductor
FR2187048A5 (enExample) * 1972-05-29 1974-01-11 Aerospatiale
FR2249458A1 (en) * 1973-10-24 1975-05-23 Centre Nat Etd Spatiales Connector lead take-up bobbin - gives connection between rotating body and measuring devices
US3887254A (en) * 1974-01-25 1975-06-03 Kearney National Inc Electric grounding apparatus
US4076191A (en) * 1975-04-29 1978-02-28 Rca Corporation Spacecraft component rotation means

Also Published As

Publication number Publication date
FR2485821B1 (enExample) 1983-11-18
US4409493A (en) 1983-10-11
FR2485821A1 (fr) 1981-12-31
DE3162022D1 (en) 1984-03-01
EP0043316A1 (fr) 1982-01-06

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