EP0911849A2 - Pièce rotative bistable à mouvement brusque - Google Patents

Pièce rotative bistable à mouvement brusque Download PDF

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Publication number
EP0911849A2
EP0911849A2 EP98117700A EP98117700A EP0911849A2 EP 0911849 A2 EP0911849 A2 EP 0911849A2 EP 98117700 A EP98117700 A EP 98117700A EP 98117700 A EP98117700 A EP 98117700A EP 0911849 A2 EP0911849 A2 EP 0911849A2
Authority
EP
European Patent Office
Prior art keywords
snap body
body according
snap
yoke
permanent magnet
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
EP98117700A
Other languages
German (de)
English (en)
Other versions
EP0911849A3 (fr
EP0911849B1 (fr
Inventor
Georgi Dipl-Ing. Cwetanski
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.)
ABB Patent GmbH
Original Assignee
ABB Patent 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 ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP0911849A2 publication Critical patent/EP0911849A2/fr
Publication of EP0911849A3 publication Critical patent/EP0911849A3/fr
Application granted granted Critical
Publication of EP0911849B1 publication Critical patent/EP0911849B1/fr
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
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2227—Polarised relays in which the movable part comprises at least one permanent magnet, sandwiched between pole-plates, each forming an active air-gap with parts of the stationary magnetic circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/32—Latching movable parts mechanically
    • H01H50/326—Latching movable parts mechanically with manual intervention, e.g. for testing, resetting or mode selection

Definitions

  • the invention relates to a bistable, rotatably mounted snap body for a polarized Relay according to the preamble of claim 1.
  • Such a polarized relay is known from DE 44 45 069 A1 two permanent magnets on opposite sides of a magnet armature and one Has coil which by reversing the armature with the permanent magnets back and forth can move. With this arrangement the core within the coil is linear performed so that contact pieces connected to the core have a linear movement can perform.
  • the anchor is curved in a circle and he can accordingly an arcuate movement execute, the center of which is the center of the anchor arc.
  • This arrangement is structural since two permanent magnets have to be provided large and complex.
  • this overload relay is simple in its construction, it requires an actuator a thermal bimetal or an element made of a shape memory alloy, so that an electronic control of the two contact pieces is not easy is possible.
  • the object of the invention is to provide a bistable polarized relay that one Has snap body, which is provided with contact pieces and the simple Way can be manufactured and driven.
  • the permanent magnet arrangement has a permanent magnet on.
  • a first and a second anchor are on the snap body made of insulating material attached, of which the first anchor two projecting in the opposite direction Has arms. Furthermore, one is fixed, two parallel and perpendicular to the Poor yoke having yoke provided that so Snap body is assigned that a first arm touches a yoke leg, whereas the other anchor simultaneously touches the other yoke leg and vice versa. So that the magnetic flux in the yoke can be reversed, so that the snap body in two stable positions is reversed, at least one coil is provided.
  • the snap body is preferably pivotable on a stationary support eccentrically stored; it can preferably be a bearing in the form of a Have a cutting edge that comes to rest against the wearer.
  • the carrier can have a guide recess into which the snap body is pressed in resiliently with its cutting edge.
  • the snap body On the opposite side of the resting position, the snap body can be one Have projection that receives the permanent magnet.
  • the first armature is provided with a plate with the arms, which are parallel to the permanent magnet and perpendicular to its north-south axis runs, the north-south axis parallel to the axis of rotation of the snap body runs.
  • the second anchor can also be plate-shaped and held on the projection his; both anchors take the permanent magnet between them.
  • the yoke legs of the yoke which preferably forms a U-shape, run parallel to the north-south axis of the permanent magnet. It can be around each yoke leg a coil may be formed.
  • a pivotable Locking lever can be provided which in a first stable position the snap body holds one position and can be brought into a second position in which the snap body is released so that it can snap into its second position.
  • an actuation push button is provided which, when actuated, the locking lever twisted from the first to the second position.
  • the actuating button can also be brought into a position in which it Lock lever releases.
  • An arm can be formed on the actuation push button, which is on the locking lever presses when the actuation button is pressed and by the locking lever Rotation of the actuating push button can be pivoted away and locked.
  • a projection can be formed on the actuating button, which when actuated of the actuating push button the snap body from a first position into one second position pivoted.
  • the snap body 10 is approximately rectangular. He owns two in recesses 11, 12 lying in one plane, in each of which a contact bridge 13, 14 located by means of a spring 15 and 16 against the bottom of the recess 11, 12 are pressed. Centered between the two recesses 11 and 12 and on the connecting line of the contact bridges 13 and 14 above the openings 11 and 12 there is a further opening 17 through which a stationary support 18 projects, a spring 19 is provided which acts on the snap body so that a cutting edge 20 on the openings 11 and 12 facing Wall side of the further opening 17 comes to bear against the carrier 18; the snap body 10 rotates about this cutting edge 20.
  • a first anchor 21 is attached below the snap body, on its lower edge, which has two anchor wings 22 and 23 which are at an angle to one another are set, which is open to the openings 11 and 12 and 17 and a blunt Forms an angle that approaches 180 °.
  • a second anchor 25 is provided separately; the armature 21 with the arms 22 and 23 is held by means of lugs 26 which are integrally formed on the projection 24 and embrace the anchor 21.
  • a permanent magnet 27 Located within the insulating protrusion 24 a permanent magnet 27.
  • a U-shaped yoke 28 with two legs 29 and 30 which are parallel to one another run and which are connected to one another by means of a web 31.
  • coils 32 and 33 are arranged for reversal serve the snap body 10.
  • a first position for example Armature arm 23 on the yoke 30, whereas the second armature 25 rests on the yoke 29; in a reversed position, which is not shown in FIGS. 1 to 3, is the armature arm 22 on the yoke 29 and the further anchor 25 on the yoke 30, so that over the arms 22, 23 and the corresponding position of the armature 25 each closed a magnetic circuit becomes.
  • Fig. 1 is drawn in such a position that the two anchor arms 22 and 23 assume a central position in which they are neither with the yoke leg 29 nor with the yoke leg 30 are connected or put on this.
  • This approximately central position is cooperated by the action of the spring 19 has a slight restoring effect.
  • the snap body 10 is made of plastic, and the two contact carriers 13 and 14 can be brought into contact with a first or a second fixed contact piece, depending on the control of the coils 32 and 33. If, for example, the snap body 10 is pivoted in the direction of arrow P 1 , that is to say counterclockwise, contacting of the contact carrier 13 with an associated adjacent double contact piece is obtained; if the snap body 10 is reversed, that is to say pivoted counterclockwise in the clockwise direction P 1 , contacting of the contact carrier 14 with an associated fixed contact arrangement is obtained.
  • FIG. 4 now shows a design which is optimized in terms of weight and production of the snap body 10, which is designated here by the reference number 40.
  • the opening 47 goes down narrower; has this taper or widening in the opposite direction their reason in the vertical length or height of the carrier 18, which is not in FIG. 4 is shown so that the snap body 40 can snap back and forth freely.
  • the snap body 40 has a T-web 43 in the middle, on which a transverse web 44 is formed is on the upper side, on the side on which the web 43 connects, Projections 45 and 46 are formed, the openings 41 and 42 for the double contact carrier take up.
  • the snap body 40 has a projection on the underside, not shown 54, which corresponds to the projection 24 and the respective armature 21 and 25 and the permanent magnet 27 wears.
  • the snap body 40 interacts with a stationary wall component 60 on which a pawl 61 is articulated, the axis of rotation 62 parallel to the pivot axis of the Snap body 40 are aligned.
  • a stationary wall part Reset button 63 running perpendicular to the pivot axis 62, on which an arm 64 is formed, which when depressed against the swivel arm or the pawl 61 for Concern comes and the pawl 61 down, so counterclockwise the pivot axis 62 pivots.
  • a stop wall 65 is formed, which has a recess 66 on the pivot lever 61 or on the latch 61 cooperates, such that in the position shown pivoting of the snap body 40 in a clockwise direction is not possible; this corresponds to a manual reset position because an automatic reset is prevented by the pawl 61.
  • the pivot lever 61 is accordingly pivoted about the pivot axis 62, then the pivot body 40 or snap body 40 can also pivot in the clockwise direction when the electromagnetic system is actuated because the pivot lever 61 is not in the path of movement of the stop wall 65 sits. This is the automatic reset position.
  • Fixing the reset button 63 in the corresponding position in which the pivot lever 61 is pressed down and thus releases the snap body 40 can be effected in that the actuating button 63 is pivoted about its axis in the direction of arrow P 2 , so that the pivot lever 64 swings into a receiving opening, not shown, on the stationary part 60 and is held therein, so that the actuating button 63 is fixed in the pressed-in position, see also FIG. 7 and the associated description.
  • FIG. 5 shows the yoke 28. It has the two legs 30 and 29 as well the crossbar 31, which is bent perpendicular to the plane through the two Legs 29 and 30 are stretched.
  • Fig. 5 is also the armature 25th it can be seen that of the projection 70, which corresponds to the projection 24, with the arms 71 and 72, which correspond to the arms 26, is included.
  • the anchor 21 is covered; only the wing 22 is visible, which is in a recess 72 on the underside of the Snap body 40 is attached or arranged.
  • FIG. 6 shows the snap body of FIG. 5 from the rear. You can see that Yoke 28 with the yoke legs 30 and 31. It is only shown that the yoke leg 31 is surrounded by a coil body 75 which receives the coil 32 serves. Also visible are the operating button 63, the ratchet lever 61 and the stationary wall 60.
  • a cross recess 83 is provided for rotating the operating button 63, which is used to hold a Phillips screwdriver.
  • the locking arm 64 can be pushed into a recess 84 in the wall 60 be pivoted so that the arm 64 in the pivoted position within the Well 84 is held. In this position the end of the arm 64 presses against a projection 85 on the latch lever 61 and in the pivoted position Pawl lever 61 in its lower position, that is, held in the position in which the pawl lever is pivoted counterclockwise. This can give you the edge 65 and thus the snap body 40 move freely, so that the snap body in Is pivotable clockwise and counterclockwise.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
EP19980117700 1997-10-22 1998-09-18 Pièce rotative bistable à mouvement brusque Expired - Lifetime EP0911849B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19746592 1997-10-22
DE1997146592 DE19746592A1 (de) 1997-10-22 1997-10-22 Bistabiler, drehbar gelagerter Schnappkörper

Publications (3)

Publication Number Publication Date
EP0911849A2 true EP0911849A2 (fr) 1999-04-28
EP0911849A3 EP0911849A3 (fr) 2000-04-19
EP0911849B1 EP0911849B1 (fr) 2006-02-15

Family

ID=7846253

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980117700 Expired - Lifetime EP0911849B1 (fr) 1997-10-22 1998-09-18 Pièce rotative bistable à mouvement brusque

Country Status (2)

Country Link
EP (1) EP0911849B1 (fr)
DE (2) DE19746592A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3837666A1 (de) * 1988-11-05 1990-05-10 Gruner Kg Relais Fabrik Relais
US5455549A (en) * 1994-02-25 1995-10-03 Siemens Energy & Automation, Inc. Multi-function button for electronic overload relay
DE4445069A1 (de) * 1994-12-06 1996-06-13 Brose Fahrzeugteile Polarisiertes Relais

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4312950A1 (de) * 1993-04-21 1994-10-27 Abb Patent Gmbh Magnetischer Auslöser für ein elektrisches Schaltgerät

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3837666A1 (de) * 1988-11-05 1990-05-10 Gruner Kg Relais Fabrik Relais
US5455549A (en) * 1994-02-25 1995-10-03 Siemens Energy & Automation, Inc. Multi-function button for electronic overload relay
DE4445069A1 (de) * 1994-12-06 1996-06-13 Brose Fahrzeugteile Polarisiertes Relais

Also Published As

Publication number Publication date
DE19746592A1 (de) 1999-04-29
EP0911849A3 (fr) 2000-04-19
DE59813383D1 (de) 2006-04-20
EP0911849B1 (fr) 2006-02-15

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