EP3555896A1 - Électroaimant pourvu d'une bobine magnétique remplaçable et procédé d'assemblage de l'électroaimant - Google Patents

Électroaimant pourvu d'une bobine magnétique remplaçable et procédé d'assemblage de l'électroaimant

Info

Publication number
EP3555896A1
EP3555896A1 EP17840530.4A EP17840530A EP3555896A1 EP 3555896 A1 EP3555896 A1 EP 3555896A1 EP 17840530 A EP17840530 A EP 17840530A EP 3555896 A1 EP3555896 A1 EP 3555896A1
Authority
EP
European Patent Office
Prior art keywords
core assembly
magnetic pole
coil
magnetic
tube
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
EP17840530.4A
Other languages
German (de)
English (en)
Other versions
EP3555896B1 (fr
Inventor
Jens Krallmann
Daniel Ferres
Thomas Zastrau
Matthias Diehl
Mario Kuhl
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.)
Thomas Magnete GmbH
Original Assignee
Thomas Magnete 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 Thomas Magnete GmbH filed Critical Thomas Magnete GmbH
Publication of EP3555896A1 publication Critical patent/EP3555896A1/fr
Application granted granted Critical
Publication of EP3555896B1 publication Critical patent/EP3555896B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H01F7/128—Encapsulating, encasing or sealing
    • 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
    • H01F7/127—Assembling
    • 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

Definitions

  • the invention relates to an electromagnet with a replaceable magnetic coil according to the preamble of the first claim and method for assembling the electromagnet.
  • Electromagnets are known and widely used. They are used, for example, for operating hydraulic valves.
  • a pole tube or a thermoformed tube serves to separate the fluid space from the space of the solenoid of the solenoid.
  • the armature moves relative to the magnetic pole, which acts on the movable member of the valve by means of an anchor rod.
  • Magnetic pole, tube or pole tube, anchor and anchor rod form the
  • the core assembly is enclosed by the solenoid.
  • the operators of the machines which are controlled by the hydraulic valves, a replaceability of the
  • Exchangeable coils are known and common, usually they are pushed over the pole tube and fastened with a threaded nut which engages in a thread at the end of the pole tube. This type of mounting also allows the solenoid to be tightened before tightening the nut
  • Connector in a predetermined direction shows.
  • To secure clamping device which consists of a group of straps arranged in a circle with a common external thread and a threaded nut with a conical surface. If you bring the hose between the tabs and screwed the threaded nut on the external thread, the conical surface pushes the tabs against the hose and clamps it.
  • Quill-shaped bars made of rather thick wire are known from the connection technology for hoses in mining, as described in DIN 20043.
  • a deep-drawn tube for media separation should be used, but this should only be welded to the magnetic pole and not additionally with a threaded connector.
  • a new, but proven in other applications attachment of the solenoid to the core assembly for this application is a new, but proven in other applications attachment of the solenoid to the core assembly for this application.
  • the solenoid for actuating a fluidic device consists of a core assembly and a solenoid.
  • the core assembly is off a tube, a magnetic pole, an anchor and an anchor rod built.
  • the replaceable magnetic coil consists of a wire winding, a bobbin, an iron yoke, a preferred partial
  • the iron yoke is designed as a pot or bracket and leads the
  • Magnetic flux is passed through the tube to the anchor.
  • the solenoid is fixed on the tube of the core assembly immovable and rotationally fixed in each case a predetermined position, in particular, the connector is aligned according to the requirements.
  • a pole tube is used to reduce costs, but a tube is made by a forming process and has only as thick sheet metal, as it is required for the application, preferably between 0.2 mm and 2.5 mm.
  • the remote from the magnetic pole end of the otherwise hollow cylindrical tube is shaped as a hollow spherical cap and has only those shape features that can be produced by a forming process with reasonable effort.
  • the tube is fluid-tight welded or soldered to the magnetic pole.
  • the solenoid is used in the assembly of the electromagnet in
  • a clamping device Positioned longitudinally against a stop of the magnetic pole and fixed in a first embodiment by a clamping device, which is at least partially part of the plastic encapsulation of the magnetic coil.
  • the clamping device provided with an external thread is actuated by a threaded nut, which by means of a conical surface at least two tabs of
  • Solenoid spanned as a whole, but only clamps the tube radially.
  • the threaded nut is made of plastic and / or designed as a cap nut.
  • the solenoid is in terms of their
  • Angle of rotation is determined by form elements of the magnetic pole and the magnetic coil, which produce a positive connection between the magnetic coil and the magnetic pole.
  • a locking wire guided in the encapsulation of the magnetic coil is inserted into a groove of the magnetic pole.
  • a form-fitting locking between the magnetic coil and the magnetic pole is generated.
  • the locking wire is shaped so that it is bow-shaped and movable but captive in openings or grooves of the
  • Plastic encapsulation of the solenoid is added. He is captive, because at least one end of the locking wire to a
  • the locking wire is only in a first, by the spring action of the locking wire
  • the electromagnet is connected by means of the magnetic pole with a fluidic valve whose movable functional part is actuated by the anchor rod.
  • the magnetic pole by indoor and
  • the solenoid according to the invention is primarily for the actuation of switching valves or proportional pressure control valves in Hydraulic controls used for self-propelled work machines, but can also be used in stationary hydraulic controls.
  • Fig. 1 attachment of the magnetic coil by means of a clamping device
  • Fig. 2 section of the embodiment with clamping device
  • Fig. 3 attachment of the solenoid by means of a wire bracket
  • Fig. 4 section of the embodiment with wire hanger
  • the electromagnet (1) according to FIG. 1, 2, 3 or 4 serves to actuate a fluidic device, preferably a valve.
  • the electromagnet consists of a core assembly (2) and a
  • replaceable magnetic coil (3) wherein the core assembly (2) consists of a
  • Tube (4) Tube (4), a magnetic pole (5), an armature (6) and an anchor rod (7).
  • the magnetic coil consists of a wire winding (8), a bobbin (9), an iron yoke (10), a partial plastic encapsulation (11) and an electrical connector (12) formed thereon.
  • the magnet coil (3) is in the assembled state of
  • the solenoid coil (3) loosely rests on the core assembly and can be replaced.
  • the tube (4) is produced by a forming process, wherein the end facing away from the magnetic pole (5) (13) of the otherwise
  • hollow cylindrical tube (4) is shaped as a hollow spherical cap.
  • the tube (4) is fluid-tight welded or soldered to the magnetic pole (5).
  • the magnetic coil (3) is positioned longitudinally against a stop (14) of the magnetic pole (5) and in terms of its angle of rotation by the orientation during assembly.
  • a clamping device (5) which is at least partially part of the plastic extrusion (11) of the magnetic coil (3), wherein the externally threaded clamping device (15) by a
  • Threaded nut (16) is actuated, which presses by means of a conical surface (17) at least two tabs (18) of the clamping device (5) against the tube (4).
  • the magnetic coil (3) in the longitudinal direction against a stop (14) of the magnetic pole (5) and in terms of its angle of rotation by form elements (19, 20) of the magnetic pole (5) and the magnetic coil (3 ), which produce a positive connection between the magnetic coil (3) and the magnetic pole (5), positioned.
  • the magnet coil (3) is held on the core assembly (2) by a locking latch (21) acting in a form-locking manner by means of a locking wire (22), wherein the locking wire (22) surrounds the plastic extrusion (11) of the
  • Magnetic coil (3) at least partially penetrates and in a groove (23) of the magnetic pole (5) so that the magnetic coil (3) is not against the core assembly (2) is displaceable, and wherein the locking wire (22) in the course of assembly core assembly (2) and magnetic coil (3) has been moved so that it engages in the groove (23).
  • Locking wire (22) shaped so that it is movable but captive in openings and / or grooves of the plastic extrusion (11) of the
  • Magnetic coil (3) is accommodated by placing at least one end of the
  • Plastic extrusion (11) is bent.
  • Locking wire (22) advantageously in a first, by the
  • the plastic extrusion (11) according to FIG. 1, 2, 3 or 4 preferably has at least one opening, one for the magnetic pole (5) and in the case of
  • Embodiment according to FIG. 1 or FIG. 2 shows another end (13) of the tube (4) facing away from the magnetic pole (5).
  • the electromagnet is preferably connected by means of the magnetic pole (5) to a fluidic valve whose movable functional part is actuated by the anchor rod (7).
  • the core assembly (2) is attached to the fluidic valve
  • the magnetic coil (3) provided with a plastic extrusion coating (11) is pushed over the core assembly (2) as far as a stop (14),
  • a threaded nut (16) is on one of the plastic extrusion
  • the core assembly (2) is attached to the fluidic valve
  • the magnetic coil (3) provided with a plastic extrusion coating (11) is pushed over the core assembly (2) as far as a stop (14),
  • Magnet coil (20) penetrates into a mold element (19) of the magnetic pole (5), wherein the molded on the plastic extrusion (11) electrical
  • Connector (12) assumes a predetermined direction
  • the magnetic coil is at the magnetic pole (3) by a form-fitting
  • locking means (21) by means of a locking wire (22) by the locking wire (22) is displaced so that it engages in a groove (23) in the magnetic pole (3), wherein the locking wire (22) of the plastic extrusion ( 11) of the magnetic coil (3) is guided and in the groove (23) of the magnetic pole (5) is applied so that the magnetic coil (3) against the core assembly (2) is immovable.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetically Actuated Valves (AREA)
  • Electromagnets (AREA)

Abstract

La présente invention a pour objet d'obtenir une exécution peu coûteuse du module de base par l'emploi d'un petit tube embouti au lieu d'un tube de pôle pour la séparation de milieu, mais ce petit tube doit être soudé uniquement au pôle magnétique et non pas en plus à un autre composant. À cet effet, une nouvelle fixation de la bobine magnétique sur le module de base doit être mise en œuvre pour cette application. Selon l'invention, dans l'état monté de l'électroaimant après l'encliquetage d'un verrouillage (21) ou la tension d'un dispositif de serrage (15) sur le module de base (2), la bobine magnétique (3) est fixée respectivement dans une position prédéfinie sans possibilité de se déplacer et tourner, et la bobine magnétique (3) repose après le relâchement du verrouillage (21) ou du dispositif de serrage (15) librement sur le module de base. L'invention permet l'actionnement de soupapes de commande ou de soupapes de régulation de pression à effet proportionnel dans des commandes hydrauliques pour des machines de travail automotrices, mais également pour des commandes hydrauliques fixes.
EP17840530.4A 2016-12-13 2017-12-06 Électroaimant pourvu d'une bobine magnétique remplaçable et procédé d'assemblage de l'électroaimant Active EP3555896B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016014755.5A DE102016014755B4 (de) 2016-12-13 2016-12-13 Elektromagnet mit auswechselbarer Magnetspule und Verfahren zum Zusammenbau des Elektromagneten
PCT/EP2017/001410 WO2018108312A1 (fr) 2016-12-13 2017-12-06 Électroaimant pourvu d'une bobine magnétique remplaçable et procédé d'assemblage de l'électroaimant

Publications (2)

Publication Number Publication Date
EP3555896A1 true EP3555896A1 (fr) 2019-10-23
EP3555896B1 EP3555896B1 (fr) 2021-03-31

Family

ID=61189395

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17840530.4A Active EP3555896B1 (fr) 2016-12-13 2017-12-06 Électroaimant pourvu d'une bobine magnétique remplaçable et procédé d'assemblage de l'électroaimant

Country Status (3)

Country Link
EP (1) EP3555896B1 (fr)
DE (1) DE102016014755B4 (fr)
WO (1) WO2018108312A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018117172A1 (de) * 2018-07-16 2020-01-16 Svm Schultz Verwaltungs-Gmbh & Co. Kg Spulenkörperanordnung
DE102018219428A1 (de) * 2018-11-14 2020-05-14 Robert Bosch Gmbh Elektromagnetisch betätigbares hydraulisches Einbauventil

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3069742B2 (ja) * 1990-10-11 2000-07-24 日清紡績株式会社 電磁弁装置
DE4142004A1 (de) * 1991-12-19 1993-06-24 Bosch Gmbh Robert Hydraulische bremsanlage, insbesondere fuer kraftfahrzeuge
JP3311427B2 (ja) * 1993-06-18 2002-08-05 株式会社デンソー 複合磁性部材およびその製法およびこの複合磁性部材を用いた電磁弁
US5944262A (en) * 1997-02-14 1999-08-31 Denso Corporation Fuel injection valve and its manufacturing method
WO2000015988A1 (fr) * 1998-09-10 2000-03-23 Continental Teves Ag & Co. Ohg Valve electromagnetique
KR100653406B1 (ko) 2003-11-12 2006-12-04 주식회사 만도 전자제어식 브레이크 시스템용 솔레노이드밸브의코일조립체 고정장치
WO2010049166A1 (fr) 2008-10-31 2010-05-06 Robert Bosch Gmbh Electro-aimant
DE102009050564B4 (de) 2009-10-23 2022-10-13 Svm Magnet Schultz Verwaltungs-Gmbh & Co. Kg Befestigung für Elektromagneten

Also Published As

Publication number Publication date
WO2018108312A4 (fr) 2018-08-16
DE102016014755A1 (de) 2018-06-14
WO2018108312A1 (fr) 2018-06-21
DE102016014755B4 (de) 2023-10-12
EP3555896B1 (fr) 2021-03-31

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