EP0099943A1 - Bewegliche Mehrkontaktanordnung mit Wippe - Google Patents

Bewegliche Mehrkontaktanordnung mit Wippe Download PDF

Info

Publication number
EP0099943A1
EP0099943A1 EP82200837A EP82200837A EP0099943A1 EP 0099943 A1 EP0099943 A1 EP 0099943A1 EP 82200837 A EP82200837 A EP 82200837A EP 82200837 A EP82200837 A EP 82200837A EP 0099943 A1 EP0099943 A1 EP 0099943A1
Authority
EP
European Patent Office
Prior art keywords
balance
stirrup
axis
rollers
pendulum
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.)
Granted
Application number
EP82200837A
Other languages
English (en)
French (fr)
Other versions
EP0099943B1 (de
Inventor
Jean-Claude Dufrasnes
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.)
Umicore NV SA
Original Assignee
Ateliers de Constructions Electriques de Charleroi SA
ACEC SA
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 Ateliers de Constructions Electriques de Charleroi SA, ACEC SA filed Critical Ateliers de Constructions Electriques de Charleroi SA
Priority to AT82200837T priority Critical patent/ATE18317T1/de
Priority to EP82200837A priority patent/EP0099943B1/de
Priority to DE8282200837T priority patent/DE3269365D1/de
Priority to JP58120155A priority patent/JPS5931517A/ja
Publication of EP0099943A1 publication Critical patent/EP0099943A1/de
Application granted granted Critical
Publication of EP0099943B1 publication Critical patent/EP0099943B1/de
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0005—Tap change devices
    • H01H9/0016—Contact arrangements for tap changers

Definitions

  • the short-circuit test is often considered the most severe. Indeed, to avoid fusion, it is necessary that the various elements, through which an intense current passes, remain joined despite the very significant repulsive forces which appear at the points of contact under the effect of the constriction of the current lines at downstream and upstream of the point of contact. To overcome this difficulty, the number of contact points is multiplied. But in this case the problem lies in giving each of these contact points an equally distributed mechanical load in order to obtain moderate heating.
  • the invention mentioned below relates to a mobile device with multiple contact points whose mechanical arrangement balances the load on each contact.
  • This device comprises a balance loaded in the middle by a spring, free to move in a plane perpendicular to the axis around which it pivots.
  • This pendulum is provided at each end with an axis, carrying two rollers, capable of moving in a plane perpendicular to the plane of movement of the pendulum.
  • Figure 1 shows a pendulum 1, made of a good conductive material, carrying a central pad 2 allowing it to oscillate around an axis 3, called the pendulum axis.
  • an axis 4 called the roller axis, supports two rollers 5, made of a good conductive material, which can rotate freely around the roller axis 4, using the bearings 6.
  • These rollers 5 are pressed against the balance 1 by springs 7 arranged at the ends of the roller axis 4 and held in place by spring guides 8.
  • Each roller axis 4 can slide in a hole 9 in the balance 1 to balance the load of the springs antagonists 7 and thus obtain an equal pressure of the rollers 5 on the balance 1.
  • each hole 9 On either side of each hole 9, chamfers 10 have been made to give each axis of rollers 4 a limited angular displacement.
  • the pendulum axis 3 is supported at its ends by an insulating part I1 which can slide on branches 12 of a stirrup 13 made of a good conductive material.
  • the cross section shown in FIG. 3 shows that the pendulum axis 3 is limited in its travel by two buttonholes 14 made at the end of each branch 12 of the stirrup 13.
  • FIG. 3 also shows the spring 15 which acts on the insulating part 11 to ensure the telescopic movement of the balance 1 relative to the caliper 13.
  • junction pieces 17 are secured at each end a flexible conductor 18 which forms a loop whose middle part is itself secured to the balance 1 over its entire thickness.
  • the current is transferred from a ring 19, shown in section in FIG. 4, to the current socket 20 secured to the stirrup 13.
  • the path followed by the current lines finds its starting point on the crown 19, passes through the contact points of the rollers 5 and is transmitted by their lateral faces to the sides of the balance 1.
  • the balance 1 then conveys the current to the flexible conductor 18 which from its central part conducts the current to its two ends secured to the junction pieces 17.
  • the current then passes from the junction pieces 17 to the stirrup 13 by the internal faces of the branches 12 thereof.
  • the Figure 3 shows that these current lines in the extreme branches of the flexible conductor 18 and the branches 12 of the bracket 13 are parallel and in opposite directions; they thus contribute to reinforcing the action of the springs 16.
  • rollers 5 are held on the ring 19 by the action of the spring 15 which pushes on the insulating part 11 to transmit the force at the ends of the balance axle 3, then to the balance 1 itself by means of the bearing 2 and finally to each of the rollers 5 by means of the roller axes 5. and of the bearings 6.
  • the force exerted by the spring 15 is distributed between the rollers 5 by rotation of the constituent elements of the multi-contact device along orthogonal axes.
  • the rotation of the pendulum 1 around the pendulum axis 3 balances the loads between the roller axis 4a and the roller axis 4b.
  • the freedom given to each roller axis 4 by the chamfers 10, made in the balance 1 at each edge of the through hole 9, makes it possible to balance the load transmitted to the roller axis 4 between each roller 5.
  • the load communicated to the axis 4a will be distributed equally between the rollers 5a and 5a 'shown in Figure 1.
  • the multi-contact device is mobile and moves, in the example presented, along a vertical axis, driven by a system , not shown, to which the bracket 13 is fixed.
  • the stirrup 13 therefore moves along a constant radius.
  • the buttonholes 14 made at the end of the branches 12 of the stirrup 13 allow the stirrup axis to move in a telescopic movement in order to constantly apply the rollers 5 against the crown 19.
  • the crown 19 is not entirely concentric with the axis along which the stirrup 13 moves, the telescopic movement communicated to the balance 1 via the part insulating 11 on the one hand and the mobility at the level of the pendulum axis 3 and the roller axes 4 on the other hand allow the multi-contact device to keep, at all times, a load evenly distributed on each roller 5.
  • the pendulum axis 3 of the device mobile moves, in the embodiment shown in FIG. 2, along a trajectory of radius greater than the radius of the trajectory of the roller axes 4.
  • the multi-contact device has to move on a flat surface, one can simply, starting from the embodiment shown in Figures 1, 2, 3 and 4, adapt this device, by increasing the diameter of the rollers 5.
  • the balance 1 can have a completely different profile, provided that the balance axis 3 remains at least as close to the rolling surface as the roller axes 4 and that the thrust of the spring 15 is exerted in the central part of the balance 1, if the load spring 15 is unique.
  • the same result can be obtained with two load springs each applied to each end of the balance 1.
  • the balance 1 carries at each end a fork supporting an axis 4 with one or more rollers 5 threaded on this axle and applied against the fork arm by helical springs or by elastic washers. These elastic washers can be made of a material that is a good conductor of electricity to ensure the passage of current from the sides of the rollers 5 to the arm of the fork.
  • each roller axis 4 in a plane perpendicular to the plane of the pendulum 1 it can be obtained by a technical equivalent such as for example a ball joint or an arrangement by fitting appropriate profiles.

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  • Contacts (AREA)
  • Valve Device For Special Equipments (AREA)
  • Transplanting Machines (AREA)
EP82200837A 1982-07-05 1982-07-05 Bewegliche Mehrkontaktanordnung mit Wippe Expired EP0099943B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT82200837T ATE18317T1 (de) 1982-07-05 1982-07-05 Bewegliche mehrkontaktanordnung mit wippe.
EP82200837A EP0099943B1 (de) 1982-07-05 1982-07-05 Bewegliche Mehrkontaktanordnung mit Wippe
DE8282200837T DE3269365D1 (en) 1982-07-05 1982-07-05 Multiple contact mobile device with rocker arm
JP58120155A JPS5931517A (ja) 1982-07-05 1983-07-01 揺り腕を有する可動の多重接触装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82200837A EP0099943B1 (de) 1982-07-05 1982-07-05 Bewegliche Mehrkontaktanordnung mit Wippe

Publications (2)

Publication Number Publication Date
EP0099943A1 true EP0099943A1 (de) 1984-02-08
EP0099943B1 EP0099943B1 (de) 1986-02-26

Family

ID=8189504

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82200837A Expired EP0099943B1 (de) 1982-07-05 1982-07-05 Bewegliche Mehrkontaktanordnung mit Wippe

Country Status (4)

Country Link
EP (1) EP0099943B1 (de)
JP (1) JPS5931517A (de)
AT (1) ATE18317T1 (de)
DE (1) DE3269365D1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0146396A2 (de) * 1983-12-15 1985-06-26 Mitsubishi Denki Kabushiki Kaisha Lastschalter für einen unter Last schaltbaren Stufenschalter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1570933A (en) * 1924-09-05 1926-01-26 Cleveland Crane Eng Current collector
US2824911A (en) * 1953-12-03 1958-02-25 Ashton B Taylor Collector shoe and conductor bus bar
EP0029467A1 (de) * 1979-11-21 1981-06-03 ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI (ACEC) Société Anonyme Elektrischer Apparat mit einer Reihe von Spannungsanzapfungen und einer beweglichen Wählerausstattung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1570933A (en) * 1924-09-05 1926-01-26 Cleveland Crane Eng Current collector
US2824911A (en) * 1953-12-03 1958-02-25 Ashton B Taylor Collector shoe and conductor bus bar
EP0029467A1 (de) * 1979-11-21 1981-06-03 ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI (ACEC) Société Anonyme Elektrischer Apparat mit einer Reihe von Spannungsanzapfungen und einer beweglichen Wählerausstattung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0146396A2 (de) * 1983-12-15 1985-06-26 Mitsubishi Denki Kabushiki Kaisha Lastschalter für einen unter Last schaltbaren Stufenschalter
EP0146396A3 (en) * 1983-12-15 1985-08-14 Mitsubishi Denki Kabushiki Kaisha Change-over switch for an on-load tap changer

Also Published As

Publication number Publication date
ATE18317T1 (de) 1986-03-15
DE3269365D1 (en) 1986-04-03
JPS5931517A (ja) 1984-02-20
EP0099943B1 (de) 1986-02-26

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