EP0618604B1 - Hilfsschaltgerät für ein mit einem Schaltschloss ausgerüstetes elektrisches Schaltgerät - Google Patents

Hilfsschaltgerät für ein mit einem Schaltschloss ausgerüstetes elektrisches Schaltgerät Download PDF

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Publication number
EP0618604B1
EP0618604B1 EP94104132A EP94104132A EP0618604B1 EP 0618604 B1 EP0618604 B1 EP 0618604B1 EP 94104132 A EP94104132 A EP 94104132A EP 94104132 A EP94104132 A EP 94104132A EP 0618604 B1 EP0618604 B1 EP 0618604B1
Authority
EP
European Patent Office
Prior art keywords
slider
auxiliary
switching device
switch
arm
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
EP94104132A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0618604A1 (de
Inventor
Manfred Schneider
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.)
Eaton Industries GmbH
Original Assignee
Kloeckner Moeller 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 Kloeckner Moeller GmbH filed Critical Kloeckner Moeller GmbH
Publication of EP0618604A1 publication Critical patent/EP0618604A1/de
Application granted granted Critical
Publication of EP0618604B1 publication Critical patent/EP0618604B1/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
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/12—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by voltage falling below a predetermined value, e.g. for no-volt protection

Definitions

  • the invention relates to an auxiliary switching device for a an electrical switching device equipped with a switch lock, especially circuit breakers and motor protection switches, with in one Housing undervoltage release and at least a leading via the key switch
  • auxiliary switch that carries a moving contacts Bridge slide and fixed connection contacts contains and the premature undervoltage release in the switch-on phase applies voltage, with the undervoltage release one of an electromagnet operated one-sided under Has tensile force of a tension spring hinged anchor, which in switched off state under the pressure of a Spring force accumulator is held in the tightened position, the hinged anchor with one when tightened and under the Action of the spring energy accumulator ineffective Trigger slide held in position for switching the Switch lock interacts, such that at Absence of a required tension for the Undervoltage release after triggering the auxiliary switch one Empty switching is carried out on the key switch.
  • Undervoltage releases are used to monitor the pending Tension or used for locking.
  • the electrical Switchgear can only be switched on when the Undervoltage release beforehand to a sufficient voltage was created. If there is no or insufficient voltage Undervoltage release, this is how the switch is turned on to empty circuits. The switch will also work triggered if the voltage is below during its switch-on time the permissible tolerance range falls. Even with recurring The switch should not switch on again automatically can. All live parts of a control circuit must be voltage-free when the switching device is switched off.
  • the invention has for its object the generic Improve auxiliary switching device, the triggering of the Key switch to switch off or prevent the Switch on the switching device with certainty only after the contacts of the auxiliary switch and Voltage applied to the undervoltage release and the closing point of the main current paths should be clear after completion of the movements on the trigger slide is reached, so that premature contact of the contact pieces of the switching device is prevented.
  • the perfect coupling of the movements at the leading Auxiliary switches and on the trigger slide are in accordance with the invention achieved a generic auxiliary switching device in that to switch on the leading auxiliary switch and to subsequent triggering of the undervoltage release one with a Axle shaft and two radially from the axle shaft different positions above and in pointing in different directions from each other differently designed arms equipped clutch lever is provided, the axis of rotation Z of the axle shaft of the Coupling lever parallel to the swivel axis of the hinged anchor is arranged in the housing and an arm of the Clutch lever with a closing movement of the leading Auxiliary switch causing slide and the second arm of the Coupling lever with the one holding down the hinged anchor Spring force accumulator is in operative connection, so that at Rotation of the clutch lever around its axis of rotation Contacts of the auxiliary switch closed and the hinged anchor is unlocked.
  • the auxiliary switching device enables a compact Construction with safe operation in a tight Tolerance range. Since the closing movement for the contacts of the Auxiliary switch for applying voltage to the Undervoltage release and unlocking the hinged anchor with only a single means to be moved, namely by means of the clutch lever designed according to the invention are performed, is the exact assignment of these two movements guaranteed to each other.
  • the idler shaft with rigid molded lever arms in turn enables an exact Assignment and transmission of the movements, namely such that when lifting the hinged anchor not as a result sufficient voltage at the undervoltage release using the the spring acting on the hinged anchor Deflection shaft by lifting the hinged anchor around its axis is rotated and at the same time the trigger slide moves , which then causes the switch lock to empty. In the starting position holds that of the spring force accumulator depressed deflection shaft the trigger slide and Folding anchor firmly.
  • the switch-on movement for the auxiliary switching device is a through the clutch lever triggered rotary movement, which for the Closure of the contacts of the auxiliary switch in one stroke must be converted, which according to the invention by implementing the Rotational movement in a linear sliding movement of a Slider with subsequent further deflection over a Wedge surface of the slide for a lifting movement for closing of the contacts of the auxiliary switch.
  • This slides preferably one on which carries the movable contacts Bridge slide attached movable roller along the Wedge surface of the slide when pulling it across Stroke direction of the bridge slide and lifts it.
  • a blocking device for the rotation of the deflection shaft is provided, which is the rotation of the Deflection shaft initially blocked, during a through a control cam on the axle shaft of the clutch lever defined distance, after passing through the Locking device unlocked and then through the deflection shaft rotated the lifting anchor and thus the movement of the trigger slide can be effected. That way Security for the proper triggering of the trigger slide and the subsequent actuation of the key switch given, and at the specified point with tension-free Activation.
  • the housing for the auxiliary switching device preferably consists of two interlocking shells, on the inner walls of which individual components, both the fixed and the movable ones for the auxiliary switch and the Undervoltage release held on holes and protrusions are.
  • the clutch lever preferably penetrates the housing transversely, so that its ends each on one side of the housing shells protrude from them or are accessible.
  • the auxiliary switching device is shown in FIGS. 1a-1c electromagnetic undervoltage release and integrated Auxiliary switch shown, for example with the Switching lock of an electrical switching device cooperates, in such a way that the switch lock in the event of undervoltage Main circuit of the switching device can not close.
  • the Auxiliary switching device is made of the two housing shells 10a, 10b assembled by locking, wherein Figure 1a die Interior view of the housing shell 10a, Figure 1b shows the Interior view of the housing shell 10b, Figure 1c the section AA 1a and 1d the section BB according to FIG. 1a.
  • the leading auxiliary switch 2 is with its components in the Housing shell 10a shown in Figure 1a, the Undervoltage release 1 with its components in the Housing shell 10b according to Figure 1b.
  • the connecting rails for the Auxiliary switches are labeled 3, they are fixed Contacts 5 assembled.
  • the movable contacts 4 are in the Bridge support 12 mounted, the bridge slide is in the grooves Housing shells guided and up and in the direction of arrow S2 removable.
  • the bridge slide 12 is transverse to it Direction of movement penetrated by the slider 23, which means the arm 381 of the clutch lever 38 engaging him transversely straight to the stroke direction of the bridge slide in direction S1 can be moved back and forth.
  • Above the auxiliary switch 2 are in the housing shell 10a according to FIG. 1a is the horizontally mounted one Deflection shaft 25 and the one below the deflection shaft Trigger slide 27 to see.
  • 1c is a cross-section of the bridge slide 12 the spring-loaded movable contacts 4 shown.
  • the Housing is still partially through an intermediate wall 68 divided, on the connection side to the electrical switching device the housing shell 10b integrally formed locking cams 103 and the detent cams 101 led out from the housing shell 10a.
  • the fitting connection web 384 of the clutch lever also protrude as well as the trigger pin 271 of the trigger slide corresponding openings in the housing shell 10b.
  • the housing shells 10a, 10b are by means of Screws 70 connected together.
  • the hinged anchor 59 is in the rest position on the both legs of the electromagnet 56 flat on and is on one side with trunnions rotatable about the pivot axis xa the housing shells stored.
  • the Hinged anchors At the end of the camp is the Hinged anchors furthermore held under tension with the tension spring 63, which is fixed to the housing shell at the other end.
  • the possible lifting movement of the hinged anchor 59 is in Figure 1b shown in dashed lines, see position 59a.
  • the hinged anchor becomes when there is no tension or insufficient tension against the tension spring force of the tension spring 63 by means of Spring force accumulator 31 with compression spring 33, which is on the top of the Hinged anchor 59 acts, held in the tightened position, i.e. depressed on the electromagnet.
  • the Clutch lever 38 has the molded rigid, from each other spaced and with different angles on the circumference of the Axle shaft of the clutch lever arranged radially from the Axle shaft projecting arms 381 and 383 with which he on the one hand in operative connection with the slide 23 for the Closing the contacts of the auxiliary switch and the other in Operational connection with the spring force memory 31 is.
  • the Deflection shaft 25, which is rotatable about its axis Y, has also formed on spaced lever arms, of which the lever arm 251 with the hinged anchor 59 and the Spring force accumulator 31 is in operative connection during the another lever arm with the trigger slide 27 in operative connection stands.
  • the temporary blocking of the trigger slide serving pawl spring 36 is in the housing shell 10b Figure 1b housed and attached. She attacks with her front end of the clutch lever 38 and is at the Rotational movement according to a predetermined angle of rotation by means of a Control cam formed on the axle shaft of the clutch lever triggered.
  • auxiliary switchgear with leading Auxiliary switch and undervoltage release is shown below explained with reference to Figures 2a-c and 8a-d. Because the hinged anchor of the undervoltage release when the Switching device by means of the spring force accumulator in the attracted position is held, see Figure 1b, can for the switchgear can be simulated as if it were on Undervoltage release voltage on. In the switch-on phase then the undervoltage release over the leading one Auxiliary switch actually put on tension prematurely. At the same time, the hinged anchor is then released, i.e. of the Relief mechanism relieved. Is that over the leading Auxiliary switch applied voltage sufficiently high, so remains the hinged anchor in the tightened position and the switching device can be switched on.
  • the movements on the leading auxiliary switch are for that auxiliary switching device according to the invention according to Figure 1 in the figures 2a-c shown in extracts.
  • the auxiliary switch 2 is according to Figure 2a shown in the open state, the contacts 4.5 are opened.
  • the one that carries the moving contacts Bridge slide 12 is above the slide 23 with the Clutch lever 38 in operative connection.
  • FIGS. 3a-c The bridge slide 12 is in detail in FIGS. 3a-c shown.
  • Figure 3a shows a longitudinal section through the Bridge slide with complete assembly with roller 120, Movable contacts 4 with a contact bridge Spring plate 121 in a receiving space 123 of the bridge slide can be moved up and down against the force of a spring 122.
  • the Bridge slide 12 also has the top Guide pin 125 and laterally in the supervision according to Figure 3b mutually opposite guide pins 126, 127 to guide on the housing shells.
  • Figure 3c shows the Front view of the housing of the bridge slide 12, the Receiving spaces 123 for the movable contacts and springs too are seen as well as the push-through opening 124 for the Slide 23 according to Figure 2a.
  • the slide 23 is a side view, Top view, bottom view and front view shown.
  • the Slider 23 has at one end transverse to the direction of displacement S1 the continuous slot 232 on.
  • the Slider 23 In the middle is the Slider 23 on its upper side with a wedge surface 233 equipped towards the end with the elongated hole 232 descends and towards the other end of the slider increases.
  • an upwardly projecting guide web 231 is formed, with which the slide laterally in the opening 124 of the Bridge slide 12, see Figure 3c and 2a, is performed.
  • the clutch lever 38 is in supervision and the two side views.
  • the clutch lever has the central axis shaft 380 which about the axis of rotation Z is rotatable on. On this axle shaft are from each other spaced in each case to an end region and also on the circumference two arms 381, 383 offset from one another.
  • the one Arm 381 formed near end 385 of axle shaft 380 which is equipped with a blind hole is for the Active engagement with the slider 23 to operate the Bridge slide 12 of the auxiliary switch determined. That arm 381 has one at its end towards the end of the axle shaft parallel projecting pin 382, with which it in the Slotted hole 232 engages.
  • the other arm 383 of the Clutch lever 38 is for the operative connection with the Spring force memory 31 determines this when the To move the clutch lever about its axis Z, i.e. to raise and thus to relieve the hinged anchor and the deflection shaft.
  • the Arm 383 is near the other end 384 of axle shaft 380 arranged, which serves as a switch-on and actuation end. This end 384 is with a fitting bridge for the switching and Turning intervention trained.
  • Arm 383 is at its end rounded off as a rolling and sliding surface. The Dimensions of the clutch lever and its arms and their Allocation to each other depends on the design of the parts interacting with you and the housing. The poor project radially from the axle shaft.
  • the movements on the trigger slide are based on the Excerpted representation according to Figures 8a-d explained.
  • the Folding anchor 59 is by means of the spring energy store 31 in De-energized state pressed onto the electromagnet. This happens in such a way that a deflection shaft 25 in the housing its axis Y is rotatably supported, this deflection shaft 25 with its axis parallel to the hinged anchor and transverse to the Pivot axis xa of the hinged anchor is arranged.
  • the deflection shaft 1a and 8a-d have two rigidly molded Lever arms 251, 250 which are spaced apart and on different locations of the circumference are formed.
  • a lever arm 251 lies on the top of the hinged anchor 59 on and is by means of the spring force accumulator 31 on the Folding anchor and depressed together with this.
  • the other Lever arm 250 of the deflection shaft 25 is operatively connected to the Trigger slide 27, the at insufficient voltage on Electromagnet is triggered and an empty circuit on Switching device should cause.
  • the holder 300 of the spring force accumulator 31 shown in more detail in side view, front view and top view.
  • the holder has the continuous holding web 314 which underside with the rolling control curve 313 for the arm 383 of the Clutch lever 38 is formed.
  • On the holding bridge 314 furthermore the right-angled retaining plate 311 formed the top of the protruding pin 310 for the Put on the compression spring 33, see Figure 1b, and underside the protruding locking cams 311 to rest on the lever arm 251 the deflection shaft 25.
  • the trigger slide 27 is in one of the figures 6a-c Embodiment shown.
  • the shape of the Release slide depends on the other components, with to which he is in active connection.
  • the trigger slide 27 in two mutually perpendicular Levels angled Z-shaped, with one end 271 has a pin-shaped shape and as a trigger pin for Trigger the key switch via the pawl 14, see figure 8a.
  • the trigger pin 271 is through a hole 106 guided in the housing shell 10b.
  • the Trigger pin 27 with a transverse to the longitudinal extent and across its displacement direction S5 continuous hole 272 equipped.
  • This hole 272 is for articulation of the lever arm 250 of the deflection shaft, so that when the Deflection shaft about its axis Y the trigger slide 27 on the Lever 250 is taken along and moved in the S5 sliding direction.
  • pawl spring 36 For exact positioning of the trigger point of the Trigger slide 27 and to generate a dynamic on Trigger slide 27 is also the pawl spring 36, see Figure 1b and Figures 9a, b provided.
  • Figure 9a, b is extracts the interaction of the deflection shaft, pawl spring, Coupling lever and trigger slide shown.
  • the Pawl spring 36 is parallel to the deflection shaft 25 with one end attached to the case at 360. At the resilient free end points the pawl spring 36 has a laterally projecting control cam 361, with which it rests on the clutch lever 38. With the front end 362 latches the pawl spring 36 on the lever arm 250 of the deflection shaft 25.
  • the pawl spring 36 thus blocks initially the rotation of the deflection shaft 25 about its axis Y in Direction D3. Only when, when the clutch lever 38 rotates, see Figure 9b, the control curve in the direction D1 about its axis Z. 387 of the clutch lever the control cam 361 of the pawl spring reached and this takes off in the direction of D4, the Unlocking the deflection shaft 25 so that it is now around turn their axis Y and over the lever arm 250 den Trigger slide 27 can take.

Landscapes

  • Push-Button Switches (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Lock And Its Accessories (AREA)
  • Mechanisms For Operating Contacts (AREA)
EP94104132A 1993-04-02 1994-03-17 Hilfsschaltgerät für ein mit einem Schaltschloss ausgerüstetes elektrisches Schaltgerät Expired - Lifetime EP0618604B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4310863A DE4310863C1 (de) 1993-04-02 1993-04-02 Hilfsschaltgerät für ein mit einem Schaltschloß ausgerüstetes elektrisches Schaltgerät
DE4310863 1993-04-02

Publications (2)

Publication Number Publication Date
EP0618604A1 EP0618604A1 (de) 1994-10-05
EP0618604B1 true EP0618604B1 (de) 1998-06-10

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ID=6484591

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Application Number Title Priority Date Filing Date
EP94104132A Expired - Lifetime EP0618604B1 (de) 1993-04-02 1994-03-17 Hilfsschaltgerät für ein mit einem Schaltschloss ausgerüstetes elektrisches Schaltgerät

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Country Link
EP (1) EP0618604B1 (es)
AT (1) ATE167331T1 (es)
DE (1) DE4310863C1 (es)
ES (1) ES2119920T3 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19703973C1 (de) * 1997-02-03 1998-05-20 Siemens Ag Schaltgerät mit Unterspannungs-Hilfsauslöser
DE19754072C1 (de) * 1997-12-05 1999-07-22 Siemens Ag Schaltgeräteeinheit aus einem Schaltgerät und angekoppeltem voreilendem Hilfsschalter
JP4032693B2 (ja) * 2001-10-19 2008-01-16 富士電機機器制御株式会社 回路しゃ断器の早入り補助スイッチ付き不足電圧引外し装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE690188C (de) * 1937-05-05 1940-04-18 Aeg Unterspannungsausloeser
DE3308437A1 (de) * 1983-03-10 1984-09-13 Klöckner-Moeller Elektrizitäts GmbH, 5300 Bonn Unterspannungsausloeser fuer elektrische niederspannungs-schutzschalter

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Publication number Publication date
DE4310863C1 (de) 1994-05-26
EP0618604A1 (de) 1994-10-05
ES2119920T3 (es) 1998-10-16
ATE167331T1 (de) 1998-06-15

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