EP0158995B1 - Spannungszuführung - Google Patents

Spannungszuführung Download PDF

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Publication number
EP0158995B1
EP0158995B1 EP85104489A EP85104489A EP0158995B1 EP 0158995 B1 EP0158995 B1 EP 0158995B1 EP 85104489 A EP85104489 A EP 85104489A EP 85104489 A EP85104489 A EP 85104489A EP 0158995 B1 EP0158995 B1 EP 0158995B1
Authority
EP
European Patent Office
Prior art keywords
contact
voltage
sliding
track
servomotor
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 - Lifetime
Application number
EP85104489A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0158995A2 (de
EP0158995A3 (en
Inventor
Andreas Sausner
Gerhard Ruschek
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.)
Mannesmann VDO AG
Original Assignee
Mannesmann VDO 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 Mannesmann VDO AG filed Critical Mannesmann VDO AG
Publication of EP0158995A2 publication Critical patent/EP0158995A2/de
Publication of EP0158995A3 publication Critical patent/EP0158995A3/de
Application granted granted Critical
Publication of EP0158995B1 publication Critical patent/EP0158995B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/16—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift
    • H01H3/166—Self-adjusting mountings, transmissions and the like

Definitions

  • the invention relates to a voltage supply for a servomotor that moves an actuator up to at least one stop, which has a grinder with two sliding contacts, each of which slides on a conductor track connected to a voltage source and via which the servomotor is supplied with voltage, and in which the grinder can be displaced beyond at least one end of the conductor tracks to switch off the servomotor with at least one sliding contact.
  • Voltage supplies of this type are used, for example, for speed control devices in motor vehicles.
  • a servomotor controls the position of the throttle valve in the air intake of the motor vehicle on the basis of setting commands.
  • the two end positions of such a throttle valve are determined by stops.
  • the servomotor must switch off exactly in the end position, because otherwise the transmission elements would be damaged.
  • the end positions are also determined by limit switches. However, these must be positioned very precisely, so that adjustment work is also necessary. In addition, there is the effort for wiring the limit switches.
  • a self-adjusting switch in which at least one contact tongue can be moved on a circular path by means of a driver which is carried along by a drive which also moves a grinder.
  • EP-A-0 029 366 shows a conductor track used as a movable contact of a switch, which can also be moved on a circular path by means of a driver.
  • the invention is based on the object of designing a voltage supply for a servomotor in such a way that at least one end position can be reached exactly with the least possible adjustment effort.
  • At least one conductor track is slidable in the longitudinal direction and that a driver is provided at a short distance from the conductor track, through which the conductor track is carried by the grinder as soon as the sliding contact is outside the conductor track.
  • the servomotor is self-adjusted when the actuator is moved by hand up to a stop because the voltage supply is also displaced in accordance with the displacement of the grinder.
  • the end position is determined in a very simple manner and the servomotor is reliably switched off when the end position is reached.
  • both conductor tracks are designed to be displaceable and each have a driver.
  • Such self-adjustment of two end positions is useful, for example, for actuators for cruise control systems in motor vehicles.
  • the servomotor can easily start in the opposite direction of rotation if both voltage paths via the sliding contacts each have a bridging line with a diode, each of these diodes having the same electrode being connected to the respective conductor track.
  • the invention allows numerous embodiments. To clarify the basic principle, one of them is shown very schematically in the drawing and is described below. This shows an actuator with the voltage supply according to the invention.
  • a line 3, 4 leads from two terminals 1, 2 to a conductor track 5, 6. Both conductor tracks 5, 6 are designed to be displaceable in the longitudinal direction.
  • a fixed conductor track 7, 8 is arranged parallel to the displaceable conductor tracks 5, 6.
  • a servomotor 9 is supplied with voltage via these fixed conductor tracks 7, 8.
  • a grinder 10 is slidably arranged on the conductor tracks 5-8.
  • This grinder 10 has four sliding contacts 11, 14, of which the sliding contact 11 on the conductor 5, the sliding contact 12 on the conductor 7, the sliding contact 13 on the conductor 8 and the sliding contact 14 on the conductor 6 grind.
  • the two outer sliding contacts 11, 12 and 13, 14 are each electrically connected to one another.
  • a driver 15 is provided at a short distance from the conductor track, against which the grinder 10 can come when the sliding contact 11 has left the conductor track 5 and on an electrically not with the Conductor 5 connected safety contact 16 has reached, no tap can be taken from the conductor.
  • a corresponding driver 17 is provided at the right end, against which the grinder 10 can move in its other end position when the sliding contact 14 is on a safety contact 18. There is also no tap from the conductor track.
  • the two fixed conductor tracks 7, 8 are connected to terminals 1 and 2 by means of a bridging line 19, 20.
  • a diode 21, 22 is arranged in each of these bridging lines 19, 20, both diodes blocking in the direction of the servomotor 9.
  • the displaceable conductor tracks 5 are pushed into a position in a middle position of the grinder 10 in which the two drivers 15, 17 are relatively close to the grinder 10. Then you move the actuator, not shown, to one of its end positions by hand.
  • the grinder 10, which is coupled to the actuator also shifts, for example as seen in the drawing to the left.
  • the conductor track 5 is shifted to the left.
  • you move the actuator to its other end position whereby the second conductor 6 is shifted to the right as seen in the drawing. In this way it is ensured that the sliding contacts 11, 14 have left the conductor tracks 5, 6 in the two end positions and the servomotor 9 is thereby switched off.
  • the power supply to the servomotor 9 takes place as follows. For example, if positive voltage is applied to terminal 1, then current flows via line 3, conductor track 5, sliding contacts 11, 12 and conductor track 7 to servomotor 9. From there, the current flows to conductor track 8 and then both via the bridging line 20 and also via the sliding contacts 13, 14, the conductor track 6 and the line 4 to the terminal 2.
  • the servomotor 9 therefore rotates in a direction of rotation and shifts the actuator, not shown, and thus simultaneously the slider 10, as seen in the drawing to the left . As soon as the area of the safety contact 16 is reached, the power supply is interrupted, so that the servomotor 9 stops.
  • the servomotor 9 can run in the opposite direction, so that the grinder 10 can move to the right as seen in the drawing until it reaches the area of the safety contact 18 with its sliding contact 14 and stops again.
  • the servomotor 9 can only be moved from the end positions of the grinder 10 by reversing the direction of rotation.

Landscapes

  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Stopping Of Electric Motors (AREA)
EP85104489A 1984-04-14 1985-04-12 Spannungszuführung Expired - Lifetime EP0158995B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843414211 DE3414211A1 (de) 1984-04-14 1984-04-14 Spannungszufuehrung
DE3414211 1984-04-14

Publications (3)

Publication Number Publication Date
EP0158995A2 EP0158995A2 (de) 1985-10-23
EP0158995A3 EP0158995A3 (en) 1988-06-22
EP0158995B1 true EP0158995B1 (de) 1990-09-05

Family

ID=6233639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85104489A Expired - Lifetime EP0158995B1 (de) 1984-04-14 1985-04-12 Spannungszuführung

Country Status (3)

Country Link
US (1) US4617505A (enrdf_load_stackoverflow)
EP (1) EP0158995B1 (enrdf_load_stackoverflow)
DE (2) DE3414211A1 (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62111308A (ja) * 1985-11-09 1987-05-22 Alps Electric Co Ltd モ−タアクチユエ−タ
DE9401715U1 (de) * 1994-02-02 1994-03-24 W.M. Filmtechnik GmbH, 83620 Feldkirchen-Westerham Vorrichtung zur Signalübertragung bei einem Kamerawagen
FR2785101B1 (fr) * 1998-10-26 2001-01-19 Valeo Electronique Tableau de commande muni d'un commutateur de pistes de puissance
DE10112895B4 (de) * 2001-03-15 2011-09-29 Ltn Servotechnik Gmbh Schleifringeinheit mit einer Leiterplatte

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421084A (en) * 1944-06-09 1947-05-27 Gen Controls Co Electric motor control system
US3348011A (en) * 1965-02-26 1967-10-17 Gen Motors Corp Self-adjusting electric switch
US3851125A (en) * 1973-11-23 1974-11-26 Alliance Mfg Co Door operator control
US4296286A (en) * 1979-11-16 1981-10-20 Trw Inc. Self-referencing position switch
FR2500680A1 (fr) * 1981-02-23 1982-08-27 Cibie Projecteurs Dispositif limiteur de course associe a un moteur electrique

Also Published As

Publication number Publication date
EP0158995A2 (de) 1985-10-23
DE3579489D1 (de) 1990-10-11
DE3414211A1 (de) 1985-10-24
DE3414211C2 (enrdf_load_stackoverflow) 1990-05-31
US4617505A (en) 1986-10-14
EP0158995A3 (en) 1988-06-22

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