EP0365518A2 - Circuit magnétique constitué essentiellement d'un rectangle plat, présentant un entrefer - Google Patents

Circuit magnétique constitué essentiellement d'un rectangle plat, présentant un entrefer Download PDF

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Publication number
EP0365518A2
EP0365518A2 EP89890273A EP89890273A EP0365518A2 EP 0365518 A2 EP0365518 A2 EP 0365518A2 EP 89890273 A EP89890273 A EP 89890273A EP 89890273 A EP89890273 A EP 89890273A EP 0365518 A2 EP0365518 A2 EP 0365518A2
Authority
EP
European Patent Office
Prior art keywords
armature
core
parts
connecting part
relay
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.)
Withdrawn
Application number
EP89890273A
Other languages
German (de)
English (en)
Other versions
EP0365518A3 (fr
Inventor
Leopold Mader
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.)
Schrack Elektronik AG
Original Assignee
Schrack Elektronik 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 Schrack Elektronik AG filed Critical Schrack Elektronik AG
Publication of EP0365518A2 publication Critical patent/EP0365518A2/fr
Publication of EP0365518A3 publication Critical patent/EP0365518A3/fr
Withdrawn legal-status Critical Current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
    • H01H51/2236—Polarised relays comprising pivotable armature, pivoting at extremity or bending point of armature
    • H01H51/2245—Armature inside coil
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2209—Polarised relays with rectilinearly movable armature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2209—Polarised relays with rectilinearly movable armature
    • H01H2051/2218—Polarised relays with rectilinearly movable armature having at least one movable permanent magnet

Definitions

  • the invention relates to a relay with an air gap, essentially flat and rectangular magnet frame with a two-pole core and an overlapping and essentially perpendicular to the plane spanned by the pole pieces or the core, driving armature driving armature and a coil arranged on the core.
  • Such a relay was e.g. known from AT-PS 311 471.
  • the magnet frame is formed by a U-shaped core, on one leg of which the coil is placed and which projects out of it with its free leg, which forms a pole piece.
  • a leaf spring carrying the armature is riveted, which overlaps the pole pieces formed by the free ends of the legs of the core and, due to its articulation on one leg by means of the spring, which simultaneously applies the restoring moment, essentially perpendicular to Level of the core is kept movable.
  • DE-OS 28 54 878 proposed a relay which has a four-pole, double-T-shaped magnet frame and in which the armature is formed by two magnetizable or magnetic armature parts connected to one another via a diamagnetic or paramagnetic connecting piece.
  • the magnetic or magnetizable parts of the armature are arranged essentially in one plane.
  • the armature is tiltably mounted in the middle of the magnetic frame or vice versa.
  • This solution also requires a large area for the relay.
  • the aim of the invention is therefore to avoid these disadvantages and to propose a relay of the type mentioned at the outset, which is characterized by a small footprint.
  • the armature is formed in a manner known per se by two magnetisable and / or magnetic parts connected to one another via a para- or diamagnetic connecting part, and in that the magnet frame with its pole pieces in the between the two is essentially parallel air gap which is held to one another and can be held by magnetizable and / or magnetic parts of the armature, at least one surface delimiting or lying in this air gap being formed by the pole face of a permanent magnet.
  • armature or the connecting part holding its magnetizable and / or magnetic parts is arranged around a parallel to the web of the core and arranged in its area Axis is rotatably or pivotally held.
  • connection part can be mounted on any construction parts of the relay, e.g. Housing parts are made.
  • the relatively large distance between the bearing axis and the active parts of the armature results in the advantage that they can be moved practically perpendicular to the magnet frame.
  • the magnetizable or magnetic parts of the armature can lie largely snugly against the magnet frame, so that correspondingly small residual air gaps result.
  • the magnet frame is formed by a two-part core, the parts of which are L-shaped or U-shaped, but with legs of different lengths, the longer legs penetrating the coil and in opposite directions are inserted therein, the armature or the connecting part holding its magnetizable and / or magnetic parts being pivotably mounted about an axis parallel to these longer legs or about an edge of the web of one part of the core.
  • the armature or the connecting part holding its magnetizable and / or magnetic parts is displaceably guided perpendicularly to the plane of the magnetic frame, preferably into the magnetic frame including the coil-receiving housing parts.
  • the armature or its connecting part can be guided with corresponding approaches in slots in housing parts, which results in considerable savings when assembling the individual parts to form the finished relay, since in this case the armature only needs to be inserted into the corresponding guides and no connections have to be manufactured more.
  • the connecting part of the armature holding the magnetizable and / or magnetic parts is made of an electrically insulating material and has coupling devices for the positive connection with at least one contact spring.
  • the coupling device is formed by at least one attachment formed laterally on the connecting part and having a slot for receiving a contact spring, the contact spring preferably having a notch which serves to receive the attachment of the connecting part.
  • the magnet frame 1 consists of a core consisting of two identical parts 2 and 3, the part of which is U-shaped with legs of different lengths 4, 5, of which the longer legs enforce the coil 6 .
  • the shorter legs form 5 pole pieces of the core.
  • the longer legs 4 have only half the width of the remaining part of a core part 2, 3, so that the shorter legs 5 lie in one plane.
  • the armature 7 has two parts 8, 8 ', which are held substantially parallel to each other at a fixed distance and determine an air gap 9, into which the pole pieces of the magnet frame 1 protrude. At least one pole face that delimits or projects into this air gap 9 is formed by the pole face of a permanent magnet 10.
  • the permanent magnet 10 is held on the armature part 8 ', which has a smaller thickness in this area.
  • the thicknesses of the permanent magnet 10 complement each other with the remaining thickness of the armature part 8 'in this area to the thickness of the remaining area of the armature part 8'.
  • the permanent magnet 10 can of course be held in an equivalent manner instead of on the armature part 8 'on a leg 5 of the core, which then has a smaller thickness in this area.
  • the thicknesses of the permanent magnet 10 then complement each other with the remaining thickness of the leg 5 in this area to the thickness of the remaining area of the leg 5.
  • the longitudinal extent of the recess in the leg created by the reduction in thickness of the leg is greater than the longitudinal extent of the magnet.
  • the armature part 8 ' is formed by a permanent magnet.
  • FIG. 3 which shows a bistable relay
  • permanent magnets 10, 10 ' are arranged on the pole pieces of the core formed by the shorter legs 5, the mutually diagonally opposite pole faces of the shorter legs 5 on polarized polar surfaces of the same name of the permanent magnets issue.
  • the permanent magnets 10, 10 ' are arranged on the armature parts 8, 8' and lie opposite the same leg 5 of the core.
  • the permanent magnets with their polar surfaces of the same polarity face the core.
  • the embodiment according to FIG. 5 differs from that according to FIG. 4 only in that the permanent magnets 10, 10 'instead of the armature parts 8, 8' are arranged on the one shorter leg 5 of the core, the armature parts in this area have a correspondingly smaller thickness than in their other areas, so that they can lie flat against the legs 5.
  • the shorter legs 5 instead of the anchor parts, have a correspondingly smaller thickness in this area and thus have recesses for receiving the permanent magnets, the longitudinal extension of the recesses expediently being larger than the longitudinal extension of the magnets.
  • the armature parts 8, 8 ' are formed by permanent magnets.
  • FIG. 7 which essentially corresponds to the embodiment according to FIG. 3, the permanent magnets 10, 10 'are arranged on the armature parts 8, 8', the permanent magnets with their polarized polar faces of the same name being the shorter legs of the core parts 2 , 3 are facing.
  • FIG. 8 corresponds to that according to FIG. 7, but the core parts 2, 3 consistently have the same thickness, so that their shorter legs 5 are offset from one another by their thickness, nevertheless in the sense of the invention one can core spoken essentially in one plane.
  • the armature parts 8, 8 ' have the same thickness throughout and carry in their diagonally opposite end regions the permanent magnets 10, 10', with their polarized polarized surfaces of the same name facing the core.
  • the armature which, as will be explained later, by the magnetizable or magnetic armature 8, 8 'and a connecting part which keeps this at a constant distance, consists of a para- or diamagnetic material, be pivotable about an axis or slidable perpendicular to the plane of the core.
  • a U-shaped core 20 is provided, one leg 21 of which passes through the coil 6 and protrudes from it to form a pole piece.
  • the armature 7 also consists of two at a constant distance from each other anchor parts 8, 8 'made of magnetizable or magnetic material, with the free, pole piece ends of the legs of the core protruding into the air gap 9 remaining between the anchor parts 8, 8'.
  • the two armature pieces 8, 8 ' are formed by permanent magnets which are opposed to one another with their respective polarity polarized polar surfaces.
  • permanent magnets are arranged at the one end regions of the armature pieces 8, 8 ', which face the core with their polarized polar faces of the same name, these permanent magnets 10, 10' lying opposite legs of the core and diagonally opposite one another Areas of the anchor parts 8, 8 'are arranged.
  • the embodiment according to FIG. 12 largely corresponds to the embodiment according to FIG. 11, only a small permanent magnet 10 'is provided instead of a continuous permanent magnet, which is held on the armature part 8' in the region of one leg of the core 20. This also results in a monostable behavior of the relay.
  • FIG. 13 which shows a bistable relay, differs from the embodiment according to FIG. 12 only in that the armature part 8 is equipped with a permanent magnet 10 which is opposite to the permanent magnet 10 ', however, the same name Polarized pole faces of the permanent magnets 10, 10 'are facing each other.
  • FIG. 14 corresponds to that according to FIG. 13 with the difference that the permanent magnets are arranged on one leg of the core 20 and the armature parts 8, 8 'in this Areas have recesses for receiving the permanent magnets 10, 10 'projecting laterally from the legs.
  • the legs in this area can also have recesses for receiving the permanent magnets.
  • FIG. 15 differs from that according to FIG. 14 only in that the permanent magnets 10, 10 'are arranged laterally on different legs of the core, wherein they abut on the legs of the core 20 with their polarized polar surfaces of the same name. These permanent magnets are arranged diagonally opposite one another.
  • the armature can be held or guided so as to be pivotable or displaceable perpendicular to the plane of the core 20.
  • the anchor parts 8, 8 ' are held firmly in the housing 25.
  • the core 20 is held in a bracket 22 which is guided in the housing walls 23, 24, the core 20 being pivotably held in the housing.
  • the anchor point 8, 8 ' are arranged in a pivotable bracket 22' which is guided in the housing walls 23, 24.
  • the axis of rotation of the bracket 22 ' is arranged in the region of the rear edge of the web of the core 20.
  • Fig. 18 shows schematically a solution in which the anchor parts 8, 8 'are also held in a bracket 22', but which is guided transversely to the core 20 in the housing walls 23, 24.
  • 19 and 20 show a relay in which the armature pieces are held in a bridge-shaped connecting part 30 made of an electrically insulating material which is placed over the shorter legs 5 of the core parts 2, 3 serving as pole pieces.
  • Brackets for the connecting pins 32 of the coil are formed on the coil body 31 of the coil 6.
  • the coil former 31 together with the core 2, 3 can be inserted into the housing 25, which is provided with corresponding receptacles.
  • the base plate 26 is reinforced and has openings for receiving the connecting pins of the contacts 33 and the contact springs 34, into which they can be inserted.
  • the connecting part 30 has lateral lugs 35, for which receptacles in the form of recesses 36 are provided in the housing walls 23, 24, in which they are slidably held.
  • the lugs 35 have slots 37, which serve to receive the contact springs 34, which are provided with notches 38 on their upper edge, sink into the corresponding ribs of the lugs 35.
  • the armature which is formed by the connecting part 30 and the armature parts 8, 8 ', which are not visible in FIGS. 19 and 20, floats on the contact springs and is guided through them essentially transversely to the core. At the same time, the contact springs 34 are moved and controlled directly by the armature.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
EP19890890273 1988-10-19 1989-10-19 Circuit magnétique constitué essentiellement d'un rectangle plat, présentant un entrefer Withdrawn EP0365518A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2583/88 1988-10-19
AT258388A ATA258388A (de) 1988-10-19 1988-10-19 Relais mit einem einen luftspalt aufweisenden, im wesentlichen ebenen und rechteckig gestalteten magnetgestell

Publications (2)

Publication Number Publication Date
EP0365518A2 true EP0365518A2 (fr) 1990-04-25
EP0365518A3 EP0365518A3 (fr) 1991-03-20

Family

ID=3536899

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890890273 Withdrawn EP0365518A3 (fr) 1988-10-19 1989-10-19 Circuit magnétique constitué essentiellement d'un rectangle plat, présentant un entrefer

Country Status (2)

Country Link
EP (1) EP0365518A3 (fr)
AT (1) ATA258388A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0810620A3 (fr) * 1996-05-27 2000-11-02 Omron Corporation Relais électromagnétique

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1037593B (de) * 1955-07-16 1958-08-28 Siemens Ag Gepoltes Elektromagnetsystem
US4437078A (en) * 1981-02-03 1984-03-13 Omron Tateisi Electronics Co. Polarized electromagnetic device
US4553118A (en) * 1981-06-15 1985-11-12 Omron Tateisi Electronics Co. Polarized electromagnetic device
DE3224070C2 (de) * 1982-06-28 1986-02-20 Siemens AG, 1000 Berlin und 8000 München Polarisiertes Relais
DE3324246C2 (de) * 1983-07-06 1985-11-28 Hengstler GmbH, 7209 Wehingen Polarisiertes, elektromagnetisches Relais
DE3415761A1 (de) * 1984-04-27 1985-10-31 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches relais
GB2191039B (en) * 1986-02-06 1990-08-01 Stc Plc Miniature electro-magnetic relay
US4730176A (en) * 1986-02-10 1988-03-08 Omron Tateisi Electronics Co. Electromagnet having a pivoted polarized armature

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0810620A3 (fr) * 1996-05-27 2000-11-02 Omron Corporation Relais électromagnétique

Also Published As

Publication number Publication date
ATA258388A (de) 2000-02-15
EP0365518A3 (fr) 1991-03-20

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