EP0210650A1 - Electro-aimant - Google Patents

Electro-aimant Download PDF

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Publication number
EP0210650A1
EP0210650A1 EP86110477A EP86110477A EP0210650A1 EP 0210650 A1 EP0210650 A1 EP 0210650A1 EP 86110477 A EP86110477 A EP 86110477A EP 86110477 A EP86110477 A EP 86110477A EP 0210650 A1 EP0210650 A1 EP 0210650A1
Authority
EP
European Patent Office
Prior art keywords
piston
groove
bearing ring
ring
bearing
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
EP86110477A
Other languages
German (de)
English (en)
Other versions
EP0210650B1 (fr
Inventor
Christoph Ing. Grad. Gibas
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.)
BSO Steuerungstechnik GmbH
Original Assignee
BSO Steuerungstechnik 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 BSO Steuerungstechnik GmbH filed Critical BSO Steuerungstechnik GmbH
Publication of EP0210650A1 publication Critical patent/EP0210650A1/fr
Application granted granted Critical
Publication of EP0210650B1 publication Critical patent/EP0210650B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/081—Magnetic constructions
    • H01F2007/085—Yoke or polar piece between coil bobbin and armature having a gap, e.g. filled with nonmagnetic material

Definitions

  • the invention relates to an electromagnet, the armature of which is designed in the manner of a piston and is guided so as to be longitudinally displaceable within a tube which is surrounded by the winding of the magnet on at least part of its length, the piston for its displaceable mounting within the tube at least one bearing ring made of an elastic, non-magnetic material, which surrounds the piston essentially in a ring, cooperates with a groove machined into the outside of the piston, against movement relative to the groove by engaging at least one radially inward bulge of the bearing ring in a shape irregularity of the groove secured and has a lubricious material at least on its outer sliding surface interacting with the wall of the tube.
  • An electromagnet of this type is already known from DE utility model 1 850 887.
  • the bearing ring is formed in one piece and slotted in the known electromagnet, so that the bearing ring can be spread or bent open for the assembly process.
  • the spreading or bending of the ring is unavoidable because there is no other way to bring the bearing ring into position in the circumferential ring groove of the piston if the bearing ring has dimensions such that it is secured against axial displacement on the piston by engagement with the ring groove is.
  • the invention has for its object to provide an electromagnet in which the bearing ring can be brought into position on the piston serving as an anchor without a disturbing deformation.
  • the groove starting from an end face of the piston, extends over at least part of the axial length of the piston, based on the longitudinal axis of the tube, and transversely to the central plane of the bearing ring that the bearing ring is self-contained so that the bulge is in the form of an undivided rib extending in the longitudinal direction of the groove, the width of which is matched to that of the groove, and that to form the shape irregularity which interacts with the bulging of the bearing ring, at least one the two opposing longitudinal walls of the groove are rounded to a length adapted to the width of the bearing ring in the region of the transition to the adjacent lateral surface of the piston, forming an edge recess in which the bearing ring is secured against axial displacement on the piston.
  • the part of the bearing ring intended for engagement in the groove can be inserted into the groove from the end face of the piston without the ring part engaging in the groove needs to be lifted over non-recessed areas of the piston skirt, as is required when inserting a slotted ring into an annular groove of a piston.
  • the part of the ring engaging in the groove in the form of an inwardly projecting bulge of the ring, which engages in an edge recess provided on the groove, which is formed by rounding off the edges of the opposing longitudinal walls of the groove, it is possible the bearing ring as in itself
  • the closed ring only needs to be widened by slightly pulling out the bulge so that it can be axially displaced over the outer surface of the piston until the edges of the bulge are aligned with the edge recesses of the groove and it is due to the elasticity of the Ring snaps into place and thus forms a safeguard against axial displacement of the ring.
  • the deformation of the closed bearing ring during the assembly process of the same is so slight that there is no fear of damage to the sliding layer in the presence of a lubricious coating on the outside of the bearing ring.
  • the deformation since the deformation only occurs at the bulge, which is slightly pulled out when the bearing ring is widened, there would be no risk of malfunction even if the coating was damaged at the deformed locations, because these damaged locations lie within the area of the edge depressions of the groove with respect to the outer diameter of the bearing ring would lie somewhat further radially inward, ie would not interact with the inner wall of the tube as load-bearing sliding surface sections.
  • the groove extends in a straight line in the longitudinal direction of the piston from one end face of the same to the other end face and has a plurality of edge depressions at a distance from one another for securing a plurality of bearing rings of the same design.
  • the piston has two diametrically opposed, longitudinal grooves, and each bearing ring is provided with two diametrically opposed, inwardly projecting bulges.
  • the electromagnet has a movable armature in the form of a piston 1, which is connected to a concentrically arranged bumper 2.
  • the piston 1 is axially displaceably mounted in a multi-part magnet housing, which is designated as a whole by 3.
  • This has an end part 4, an intermediate tube 6 adjoining it axially and a pole tube 7 adjoining it axially.
  • the end part 4, the intermediate tube 6 and the pole tube 7 form with their inner walls a cylindrical surface which surrounds the piston 1 which is axially displaceably guided in them.
  • a magnetic winding 9 shown only broken off in FIG. 1 surrounds the majority of the end part 4, the intermediate tube 6 and the pole tube 7 over part of its length.
  • the sliding bearing for the piston 1 has two identically designed bearing rings 11, which are made of a non-magnetic material, for example a sheet metal strip made of V2A steel, a brass alloy, a copper alloy or the like.
  • the piston 1 has two identically designed pistons metrically opposed grooves 13 which are cut into the piston skirt and in the exemplary embodiment extend in a straight line from one end face or end face 15 of the piston 1 to the other end face 16 in the direction of the piston longitudinal axis 14.
  • Each bearing ring 11 is a one-piece, self-contained ring with two bulges 18 arranged diametrically opposite one another, which are of identical design and form radially inwardly projecting ribs, the apex line of which runs in the longitudinal direction of the grooves 13.
  • These have on their opposite, longitudinal side walls 21 and 22 edge depressions 23, which are formed by embossed rounding of the edge areas of the side walls 21 and 22, ie the areas in which the side walls 21 and 22 adjoin the outer surface of the piston 1.
  • These edge depressions have an axial length adapted to the width of the bearing rings 11 and form a seat into which the bearing ring in question snaps with the associated inner surfaces of the bulge 18 in question.
  • the circumferential length of the bearing rings 11 is dimensioned such that the bulges 18 engage the edge recesses 23 on the grooves 13 under pretension in order to axially secure the bearing rings 11.
  • a certain widening of the ring 11 is therefore necessary, the bulges 18 being widened slightly, this widening of the bulges 18 being reduced again as soon as the bearing ring 11 on the associated edge depressions 23 on the groove 13 is aligned.
  • the bearing rings 11 are widened in the course of the assembly process, their slight deformation takes place only at the bulges 18, i.e.
  • the bearing rings 11 can preferably have a layer made of a non-magnetic, lubricious material with the lowest possible permeability, e.g. a fluorine-containing polymer, for example 0.1 mm to 0.2 mm thick.
  • the outer diameter of the piston 1 is selected taking into account the strength of the bearing rings 11 located on it so that between the inner wall of the cylinder and the outside of the bearing rings 11 or, if appropriate, their lubricious coating there is a suitable play for the sliding bearing of the piston 1.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Electromagnets (AREA)
EP86110477A 1985-07-31 1986-07-29 Electro-aimant Expired - Lifetime EP0210650B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3527423 1985-07-31
DE19853527423 DE3527423A1 (de) 1985-07-31 1985-07-31 Elektromagnet

Publications (2)

Publication Number Publication Date
EP0210650A1 true EP0210650A1 (fr) 1987-02-04
EP0210650B1 EP0210650B1 (fr) 1990-05-16

Family

ID=6277277

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86110477A Expired - Lifetime EP0210650B1 (fr) 1985-07-31 1986-07-29 Electro-aimant

Country Status (4)

Country Link
US (1) US4677410A (fr)
EP (1) EP0210650B1 (fr)
JP (1) JPS6242502A (fr)
DE (2) DE3527423A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2333184A (en) * 1998-01-13 1999-07-14 Caterpillar Inc Solenoid and method of manufacture
EP3557594A3 (fr) * 2018-04-19 2019-11-13 HUSCO Automotive Holdings LLC Systèmes et procédés pour un solénoïde doté d'un tube d'armature alvéolé

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4042235A1 (de) * 1990-06-28 1992-01-02 Urich Manfred Fuellstandsmessvorrichtung
DE4224754A1 (de) * 1992-07-27 1994-02-03 Budig Peter Klaus Prof Dr Sc T Elektromagnetischer Aktuator
DE19801529C2 (de) * 1998-01-16 2001-02-08 Hans Ulrich Bus Elektromagnetischer Antrieb
DE10218445A1 (de) * 2002-04-25 2003-11-06 Bosch Rexroth Ag Anker für eine Magnetanordnung
CN100419280C (zh) * 2006-04-30 2008-09-17 钱澄 组合式磁环
DE102010042118A1 (de) * 2010-10-07 2012-04-12 Robert Bosch Gmbh Gleitlager, Verfahren zum Herstellen eines Gleitlagers sowie Verwendung eines Gleitlagers
DE102014108700A1 (de) * 2014-06-20 2015-12-24 Hilite Germany Gmbh Zentralaktuator für einen Schwenkmotorversteller einer Nockenwelle
JP2016058728A (ja) * 2014-09-02 2016-04-21 フスコ オートモーティブ ホールディングス エル・エル・シーＨＵＳＣＯ Ａｕｔｏｍｏｔｉｖｅ Ｈｏｌｄｉｎｇｓ ＬＬＣ 磁性管を備えたソレノイドと電機子安定化素子及びそれらの作成と使用方法
JP2020053618A (ja) * 2018-09-28 2020-04-02 日本電産トーソク株式会社 ソレノイド
CN113531191A (zh) * 2021-07-14 2021-10-22 杭州群科荟科技有限公司 一种气隙磁导结构及其气体电磁阀

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3010055A (en) * 1956-07-30 1961-11-21 American Nat Bank And Trust Co Solenoid plunger with localized bearing
GB1382429A (en) * 1971-08-26 1975-01-29 Brook J E Indexing apparatus
US4127835A (en) * 1977-07-06 1978-11-28 Dynex/Rivett Inc. Electromechanical force motor
DE3042752A1 (de) * 1980-11-13 1982-05-19 bso Steuerungstechnik GmbH, 6603 Sulzbach Magnet, insbesondere proportionalmagnet

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD27458A (fr) *
DE1850887U (de) * 1961-08-30 1962-05-03 Siemens Ag Kolbenfuehrung fuer tauchankermagnete.
US3510814A (en) * 1968-05-31 1970-05-05 Automatic Switch Co Solenoid operator having armature provided with guide rings
GB1499326A (en) * 1974-04-18 1978-02-01 Expert Ind Controls Ltd Electromagnetic and armature core tubes for the same
GB1578021A (en) * 1976-05-01 1980-10-29 Expert Ind Controls Ltd Solenoid devices
US4525695A (en) * 1984-04-04 1985-06-25 Parker Hannifin Corporation Force motor with ball mounted armature

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3010055A (en) * 1956-07-30 1961-11-21 American Nat Bank And Trust Co Solenoid plunger with localized bearing
GB1382429A (en) * 1971-08-26 1975-01-29 Brook J E Indexing apparatus
US4127835A (en) * 1977-07-06 1978-11-28 Dynex/Rivett Inc. Electromechanical force motor
DE3042752A1 (de) * 1980-11-13 1982-05-19 bso Steuerungstechnik GmbH, 6603 Sulzbach Magnet, insbesondere proportionalmagnet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2333184A (en) * 1998-01-13 1999-07-14 Caterpillar Inc Solenoid and method of manufacture
EP3557594A3 (fr) * 2018-04-19 2019-11-13 HUSCO Automotive Holdings LLC Systèmes et procédés pour un solénoïde doté d'un tube d'armature alvéolé

Also Published As

Publication number Publication date
US4677410A (en) 1987-06-30
DE3527423A1 (de) 1987-02-12
JPS6242502A (ja) 1987-02-24
DE3671322D1 (de) 1990-06-21
EP0210650B1 (fr) 1990-05-16
DE3527423C2 (fr) 1989-12-21

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