EP0707326A1 - Dispositif inverseur entraîné par un moteur pour la commande d'un interrupteur électrique - Google Patents

Dispositif inverseur entraîné par un moteur pour la commande d'un interrupteur électrique Download PDF

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Publication number
EP0707326A1
EP0707326A1 EP95115495A EP95115495A EP0707326A1 EP 0707326 A1 EP0707326 A1 EP 0707326A1 EP 95115495 A EP95115495 A EP 95115495A EP 95115495 A EP95115495 A EP 95115495A EP 0707326 A1 EP0707326 A1 EP 0707326A1
Authority
EP
European Patent Office
Prior art keywords
switching
actuator
actuators
actuating cam
shaft
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
EP95115495A
Other languages
German (de)
English (en)
Other versions
EP0707326B1 (fr
Inventor
Günther Trautmann
Jörg-Ulrich Dipl.Ing.(FH) Peterreins
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.)
Peterreins Schalttechnik GmbH
Original Assignee
Peterreins Schalttechnik GmbH
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 Peterreins Schalttechnik GmbH filed Critical Peterreins Schalttechnik GmbH
Publication of EP0707326A1 publication Critical patent/EP0707326A1/fr
Application granted granted Critical
Publication of EP0707326B1 publication Critical patent/EP0707326B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/22Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/26Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/32Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/42Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric

Definitions

  • the invention relates to a motor-driven, mechanical switching mechanism for actuating an electrical switch, in particular a switching rotor of such a switch (preamble of claim 1).
  • a switching mechanism with a Maltese transmission is known for example from DE-GM 82 13 505.3.
  • the disadvantage here is that the motor has only a free rotary movement of a maximum of 120 ° between the individual switching positions for starting and stopping. The motor is therefore limited in its free rotation.
  • Another disadvantage of this arrangement is that no manual emergency operation is provided in the event of a power failure and thus when the motor is at a standstill.
  • Switching mechanisms with a Maltese switching element and with deflecting bevel gear drives are also known. Switchgear assemblies of this type are complicated in construction and therefore costly to produce.
  • the object or problem of the invention in contrast, is to provide a switching mechanism according to the preamble of claim 1, in which with mechanical, simple and space-saving means and also avoiding the disadvantageous overrun of flywheels, the switch shaft of the relevant electrical switch, or one Switching rotor of such an electrical switch can be operated.
  • control cam rotates at a constant angular velocity during the switching processes and is only switched off, ie comes to a stop if this has no subsequent influence on the actuation of the electrical switch.
  • the disadvantageous limitation of the rotary movement of the motor to 120 ° in the prior art mentioned above is avoided.
  • a resilient return of the actuator or the actuators is ensured in the respective starting position.
  • a further, preferred embodiment of the invention is the subject of claim 3.
  • the switching disc is a stable support for the actuating cam and can be easily circulated by the drive motor. Since the switching disc has a certain mass, it therefore ensures a uniform rotation of the actuating cam in its orbit. However, the swing of this mass does not have a disadvantageous effect on the accuracy of the actuation of the electrical switch in accordance with the above statements.
  • Two actuators are also preferred intended. With the clockwise direction of rotation of the actuating cam or the switching disc, different switching processes can be achieved than when the switching disc rotates counterclockwise. In order to achieve this, only the previously described reversal of the direction of rotation of the switching disc or the actuating cam has to be carried out. According to the features of claim 5, the two actuators can be identical, but can be arranged in mirror image to each other. Apart from the simplification of the fixing given herewith, it is achieved that the same switching movements are carried out when the switching disc rotates clockwise and counterclockwise, except that the switch shaft is pivoted once clockwise and once counterclockwise.
  • two actuators are present, they can be pulled towards one another and against a stop in a structurally simple and functionally advantageous manner by means of a tension spring.
  • the switch is switched synchronously with the speed of rotation of the motor axis.
  • the engine is not limited in its run-down phase. For example, it can also continue to rotate in continuous operation because the actuators are laterally displaced by the actuating cam of the switching disk after the switching position has been reached.
  • abutments can also be provided one behind the other in the longitudinal direction of the relevant actuator or actuators, so that instead of only one switching step of, for example, 90 °, several switching steps of, for example, 45 ° each can be carried out in succession with the same actuator.
  • Fig. 1 shows the overall structure of an embodiment of such a switching mechanism with housing 1, drive motor 2, switching disc 3 with actuating cams 4, two actuators 5, 6 and the switch shaft 7, which is only partially recognizable here. Furthermore, an emergency switching shaft 39 and associated means, only indicated schematically be provided for the transmission of a rotation of the emergency switching shaft to the switch shaft 7 (reference is made in detail to this in FIGS. 12 to 14 and the associated text).
  • the rotation of the motor 2 is transmitted to the switching disk 3 via deflection means (not shown) and a drive shaft 10, which is only indicated by dash-dotted lines.
  • the electrical switch to be switched by means of the switch shaft 7 or the switching rotor of such an electrical switch which is connected to the switch shaft so as to be entrained in rotation are not shown in the drawing.
  • the aforementioned switching rotor actuates, for example closes or opens, corresponding electrical contacts depending on its rotational position.
  • the aforementioned electrical switches are larger switches are in an oil bath and need to be remote controlled.
  • the invention could also be used in comparison with smaller switches.
  • Such a remote control can be done from a central office. It switches the drive motor 2 on and off and thus the corresponding switching rotations of the switch shaft. As long as the motor 2 is switched on, the actuating cam runs or the switching disk 3 rotates with the actuating cam 4.
  • each show exemplary embodiments of mechanical switching mechanisms according to the invention, in which the preferably provided switching disk and thus the actuating cam can be rotated both clockwise and counterclockwise, two actuators being actuated herewith which turn the switch shaft clockwise or counterclockwise.
  • This switching option in both directions of rotation is a preferred embodiment of the invention.
  • the invention could also be implemented with only one actuator and thus rotation of the switch shaft in only one direction of rotation.
  • the same reference numerals are used for the same components, or at least in principle the same components.
  • the switching disk 3 and its drive shaft 10 the actuating cam 4 fixed to the switching disk and the two actuators 5, 6 are shown.
  • These actuators are each articulated to a flange 8, by means of pins or the like 9.
  • the flange 8 is rotatably connected to the switch shaft 7.
  • a tension spring 11 is provided which acts on the actuators 5, 6 and endeavors to pull them towards each other in the direction of the arrows 12 and to pivot them about the articulations 9.
  • the actuators 5, 6 have abutment surfaces 13 which are in the orbit 15 of the actuating cam 4.
  • the actuators 5, 6 are the same in this embodiment, however Arranged in mirror image to each other, so that when the control cam 4 rotates clockwise on the track 15, as well as its counterclockwise rotation, as explained in detail below, the switch shaft 7 is pivoted by the same angular amount, but in the corresponding direction of rotation.
  • the drive shaft 10 and the switch shaft 7 are fixed at a certain fixed distance from one another (not shown in detail).
  • the actuating cam 4 abuts the abutment 13 during a clockwise rotation according to FIG. 2, it moves the actuator 5 in the direction of the arrow 17 during its further rotation about the drive shaft 10, whereby it over the associated linkage 9 the flange 8 and thus the switch shaft 7 also pivoted clockwise by one switching step.
  • this is a pivoting through 90 °.
  • the components, including the actuators 5, 6, then assume the position shown in FIG. 4.
  • the aforementioned setting angle of 90 ° is shown by the arc AB in Fig. 4.
  • Fig. 4 also shows that in this position of the actuator 5, its abutment 13 has been moved out of the orbit 15 of the actuating cam 4, so that it can continue to rotate with the switching disc 3 without hindrance. He then comes to rest against the inner edge 14 of the other actuator 6 and swivels it against the action of the spring 11 about its articulation 9 in the counterclockwise direction, as indicated by the number 6 'in dashed lines.
  • the control cam can slide freely along the inner edge 14 of the actuator 6 according to position 4 '.
  • the spring 11 pulls the actuator 6 back into the position shown in solid lines in FIG. 4.
  • the position of the actuators 5, 6 according to FIGS. 2 and 4 is secured in that the actuators have stops 16 on the side, which come to rest on the outer surface of the switching disk 3.
  • these stops can be created by folding the metal sheets forming the actuators 5, 6. Completeness
  • the movement of the actuator 5 in the arrow direction 17 via the flange 8 results in an opposite movement of the actuator 6 in the arrow direction 17 '.
  • the switch shaft 7 is continuously swiveled through 90 ° at appropriate intervals.
  • a reversal of the direction of rotation of the drive 2, 10 and thus the direction of rotation of the switching disc 3 has the consequence that the actuating cam 4 comes to rest against the abutment surface 13 of the actuator 6 and this correspondingly displaces what a rotation of the flange 8 and thus the switch shaft 7 also by 90 °, but counterclockwise.
  • a further rotation of the switching disc causes the actuating cam 4 to grip the inner edge 14 of the actuator 5 and thus to pivot the actuator 5 against the action of the spring 11 to the outside. The process is therefore the same as that previously when the switching disk 6 was rotated clockwise, except that the other actuator 6 now actuates the switch shaft.
  • Such a mechanical switching mechanism can be used in particular for switching operations in which exactly predetermined switching paths there and back have to be observed, regardless of the direction of rotation of the switching operation, and while avoiding the disadvantages of the mentioned overrun.
  • the configuration of the actuators 5, 6 should be chosen so that their contours, in particular the abutment surfaces and the inner edges with respect to the position of the orbit 15 of the actuating cam 4 and the position of the articulation points 9 in the sense of the teaching of the invention are coordinated.
  • FIGS. 5 to 11 shows that instead of only one switching step of 90 ° with the same actuator, several switching steps can be carried out in succession. In the exemplary embodiment of FIGS. 5, 6 to 11, these are two switching steps at 45 ° each. However, the invention can also bring about several, for example three, switching steps in the movement of an actuator by corresponding angle adjustments, for example three switching steps of 30 ° or 45 ° each, of the switch shaft (not shown).
  • the two actuators 5, 6 each have two abutment surfaces 13 'and 13''at a distance from one another.
  • the abutment surfaces 13 ' are further away from the articulations 9 of the actuators 5, 6 than the abutment surfaces 13''.
  • the actuating cam 4 slides along the inner edge 14 of the actuator 5 and presses it outwards, ie it rotates clockwise around the associated articulation point 9. Furthermore, in the course of this orbit, the actuator 6 is pivoted counterclockwise by the actuating cam 4 about its articulation 9. If the actuating cam 4 is located outside the area of the inner edge 14 of the actuator 6, the spring 11 swings it clockwise inward until its stop 16 comes into contact with the switching disc 3. As the switching disc continues to rotate, the actuating cam 4 assumes the position shown in FIG. 7, in which it rests on the other abutment surface 13 'of the actuator 5.
  • this abutment 13 ' Via this abutment 13 ', it moves the actuator 5 further in the direction of arrow 17, whereby the flange 8 is moved by a further 45 ° (see angle BC) so that it assumes the position shown in FIG. 8.
  • the switch shaft 7 was pivoted clockwise in two steps of 45 ° each.
  • the actuating cam 4 moves further clockwise, it pushes the further actuator 6 outwards, as already described above, and slides thereon, ie past the inner edge 14 thereof.
  • a support rod 18 is provided with a stop 18 ', which is displaceable both in the direction of arrow 19 and in the direction of arrow 20.
  • This shift linkage 18, 18 ' is used to hold the respective actuator 5 or 6 in such an angular position to the respective articulation point 9 when two abutments 13', 13 '' are arranged that the switching cam 4 initially rotates against the abutment 13 '' comes to rest and the relevant actuator switches, and that the next rotation of the control cam 4, the stop 18 'has shifted so far that the actuator in question assumes an angular position about its respective articulation point 9 or 10 under the action of the tension spring 11 , in which the abutment 13 'is in the orbit of the actuating cam 4. This applies both when the control cam 4 is moved clockwise and counterclockwise.
  • the adjustment of the stop 18 'by means of the holding rod 18 is controlled synchronously with the revolutions of the actuating cam 4.
  • the position of the respective actuator is secured by abutment of the stop 18' on the respective inner edge 14 of the relevant actuator.
  • the stop 18 'thus counteracts a further pivoting of the relevant actuator by the spring 11.
  • the movement of the support rod 18 and the timing of this movement can be done mechanically, electromechanically or by control using electrically operated magnets. It can be seen that after reaching the position shown in FIG. 9 on the right, the actuating cam 4 continues to move clockwise in its orbit 15. To avoid an additional representation, the beginning of the switching movement is in the same FIG. 9 of the actuator 6 shown in the clockwise rotation of the switching disc 3.
  • a spring jump mechanism 26 which is approximately rectangular in cross section is surrounded by an angular plate which is approximately L-shaped in cross section.
  • the legs of this L are numbered 27, 28. 12 shows within the leg 27 a cutout 29 which extends in the longitudinal direction 34-34 of the angle plate 27, 28 and has a smaller cutout 30 running perpendicularly thereto.
  • the switch shaft 7 is introduced and guided into the larger cutout 29 and rotates a control projection 31 with guide pin 32 carries.
  • the guide pin 32 slides into the smaller cutout 30.
  • An analogous arrangement is provided in the leg 28, consisting of a larger cutout 33, which likewise runs in the longitudinal direction 34-34 of the angle plate 27, 28 and a smaller cutout 34 running transversely thereto.
  • the emergency switching shaft 39 is introduced into the larger cutout 33 and guided therein, and is connected in a rotationally fixed manner to a control projection 35, who carries a guide pin 36.
  • This guide pin 36 slides into the smaller cutout 34.
  • the cutouts 29, 30 and 33, 34 each merge into one another.
  • Rotating the emergency switching shaft 39 by hand, for example by means of a socket wrench 37 results in the angular plate 27, 28 being displaced in the direction of the arrows 34-34 via the guide arrangement 33, 34, 35, 36.
  • This movement of the angle plate 27, 28 causes a corresponding rotation of the switch shaft 7 via the guide arrangement 29, 30, 31, 32.
  • the electrical switch to be actuated can thus be switched manually by rotating the emergency switching shaft 39.
  • Auxiliary contact switches 38 are provided at the end positions of the displacement movement of the angle plate 27, 28. Only one auxiliary contact switch is shown, namely on the right in FIG. 1. The respective position of the angle plate and thus the switch position can be optically displayed via these auxiliary contact switches.
  • the motor-operated switch shaft 1 and the manually operated emergency switching shaft 39 are therefore synchronously and inevitably coupled to one another via the aforementioned arrangement with link guides, both during clockwise and counter-clockwise rotations.
  • This arrangement replaces the expensive and space-consuming bevel gears present in the prior art.

Landscapes

  • Mechanisms For Operating Contacts (AREA)
  • Transmission Devices (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Control Of Direct Current Motors (AREA)
EP95115495A 1994-10-12 1995-09-30 Dispositif inverseur entraíné par un moteur pour la commande d'un interrupteur électrique Expired - Lifetime EP0707326B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4436417 1994-10-12
DE4436417A DE4436417C1 (de) 1994-10-12 1994-10-12 Motorisch angetriebenes, mechanisches Umschaltwerk zur Betätigung eines elektrischen Schalters

Publications (2)

Publication Number Publication Date
EP0707326A1 true EP0707326A1 (fr) 1996-04-17
EP0707326B1 EP0707326B1 (fr) 1999-02-17

Family

ID=6530559

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95115495A Expired - Lifetime EP0707326B1 (fr) 1994-10-12 1995-09-30 Dispositif inverseur entraíné par un moteur pour la commande d'un interrupteur électrique

Country Status (5)

Country Link
EP (1) EP0707326B1 (fr)
AT (1) ATE176831T1 (fr)
DE (2) DE4436417C1 (fr)
DK (1) DK0707326T3 (fr)
ES (1) ES2130490T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29703789U1 (de) * 1997-02-17 1997-05-07 ABB Daimler-Benz Transportation (Deutschland) GmbH, 16761 Hennigsdorf Ferngesteuerte Schalteinrichtung
CN103426661A (zh) * 2012-06-14 2013-12-04 洪蕾 一种高压电器操动机构的双向限位与锁定装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2896617B1 (fr) * 2006-01-24 2009-11-20 Schneider Electric Ind Sas Dispositif d'actionnement pour controler la vitesse de course des contacts mobiles dans un contacteur
KR100834618B1 (ko) * 2006-11-21 2008-06-02 삼성전자주식회사 휴대용 단말기의 2-방향 키
DE102008033186A1 (de) * 2008-07-15 2010-01-21 Areva Energietechnik Gmbh Schaltvorrichtung für eine elektrische Schalteinheit insbesondere einer Mittelspannungsschaltanlage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE852568C (de) * 1949-06-22 1952-10-16 Siemens Ag Elektromotorischer Antrieb fuer elektrische Schalter, insbesondere Selbstschalter
DE1124132B (de) * 1957-10-29 1962-02-22 Walter Holzer Elektrischer Schalter zum periodischen Umschalten der Drehrichtung eines Elektromotors
DE8213505U1 (de) 1982-05-10 1982-08-19 Siemens AG, 1000 Berlin und 8000 München Elektrischer Antrieb für einen Lasttrennschalter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1690093B1 (de) * 1967-11-24 1971-10-14 Siemens Ag Motorantrieb fuer elektrische schalter mit einer auf einer spindel laufenden wandermutter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE852568C (de) * 1949-06-22 1952-10-16 Siemens Ag Elektromotorischer Antrieb fuer elektrische Schalter, insbesondere Selbstschalter
DE1124132B (de) * 1957-10-29 1962-02-22 Walter Holzer Elektrischer Schalter zum periodischen Umschalten der Drehrichtung eines Elektromotors
DE8213505U1 (de) 1982-05-10 1982-08-19 Siemens AG, 1000 Berlin und 8000 München Elektrischer Antrieb für einen Lasttrennschalter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29703789U1 (de) * 1997-02-17 1997-05-07 ABB Daimler-Benz Transportation (Deutschland) GmbH, 16761 Hennigsdorf Ferngesteuerte Schalteinrichtung
CN103426661A (zh) * 2012-06-14 2013-12-04 洪蕾 一种高压电器操动机构的双向限位与锁定装置
CN103426661B (zh) * 2012-06-14 2015-08-26 洪蕾 一种高压电器操动机构的双向限位与锁定装置

Also Published As

Publication number Publication date
ES2130490T3 (es) 1999-07-01
DE4436417C1 (de) 1996-02-22
DE59505114D1 (de) 1999-03-25
DK0707326T3 (da) 1999-09-20
ATE176831T1 (de) 1999-03-15
EP0707326B1 (fr) 1999-02-17

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