EP3341946A1 - Elektromagnet und verfahren zu seiner herstellung - Google Patents

Elektromagnet und verfahren zu seiner herstellung

Info

Publication number
EP3341946A1
EP3341946A1 EP16774849.0A EP16774849A EP3341946A1 EP 3341946 A1 EP3341946 A1 EP 3341946A1 EP 16774849 A EP16774849 A EP 16774849A EP 3341946 A1 EP3341946 A1 EP 3341946A1
Authority
EP
European Patent Office
Prior art keywords
yoke
core
coil
electromagnet
flange
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Withdrawn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
EP16774849.0A
Other languages
German (de)
English (en)
French (fr)
Inventor
Jürgen Schonlau
Marc Leinweber
Michael Ermert
Christian HÄBERLE
Christian Mohncke
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 EP3341946A1 publication Critical patent/EP3341946A1/de
Withdrawn legal-status Critical Current

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
    • H01F7/128—Encapsulating, encasing or sealing
    • H01F7/129—Encapsulating, encasing or sealing of armatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
    • 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 according to the preamble of the first claim.
  • Electromagnets that convert an electric current into a mechanical force are known, for example from the document
  • Such electromagnets usually consist of a stator and a stator
  • pole core which is adjacent to the armature and defines a variable axial air gap between it and the armature.
  • the yoke advantageously also stores the anchor.
  • Electromagnets are the yoke and the pole core and a spacer soldered together and together form a pole tube.
  • the spacer ring is made of a metallic material with very low magnetic conductivity, while the yoke and the pole core of
  • the low magnetic conductivity of the spacer is required to avoid a magnetic short across the axial air gap.
  • Execution can be made at a lower cost, but it has a significantly higher hysteresis of variable stroke force.
  • the low hysteresis of the variable stroke force of the electromagnet is achieved by geometrically designing the yoke and the pole core as is conventional in the example with the brazed pole tube and by supporting the armature in the yoke.
  • a spool core which consists of the yoke, the pole core, a pole piece and the plastic mass with which the metallic parts are encapsulated or surrounded.
  • the plastic mass also fulfills the task of connecting the metallic parts of the spool with each other.
  • the yoke has a flange which is molded or pressed on as a separate component.
  • the gap between the yoke and the pole core is filled with the plastic mass.
  • the coil core thus produced is wrapped with the magnetic coil and enclosed with a housing, which also has the property of
  • the yoke is provided with a perforated end disc, either by welding the disc to the yoke or by pressing the disc into the yoke.
  • Electromagnets of the type described are used for actuating fluid valves or clutches, preferably in vehicles or in mobile working machines.
  • Fig. 1 shows the electromagnet in section.
  • the electromagnet (1) according to FIG. 1 consists of at least one magnetic coil (2) wound on a coil core (6), a housing (3)
  • the coil core (6) contains the yoke (7), the pole core (4) and the
  • Interspace (10) between the yoke (7) and the pole core (4) is filled with the plastic mass.
  • the pole core (4) is comprised of a core flange (14) which conducts the magnetic flux from the housing (3) to the pole core (4).
  • the pole core and the core flange are made in one piece.
  • the yoke (7) comprising the armature (5) is provided with a flange (15). equipped, which conducts the magnetic flux from the housing (3) to the armature (5).
  • the flange and the yoke are two parts through
  • an end plate (12) is welded, which serves the anchor (5) as a stop and a hole or a plurality of holes (13).
  • the end plate (12) is joined by pressing into the yoke (7).
  • the housing (3) comprises the magnetic coil (2) and the yoke (7).

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnets (AREA)
  • Magnetically Actuated Valves (AREA)
EP16774849.0A 2015-08-25 2016-08-02 Elektromagnet und verfahren zu seiner herstellung Withdrawn EP3341946A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015011238.4A DE102015011238A1 (de) 2015-08-25 2015-08-25 Elektromagnet und Verfahren zu seiner Herstellung
PCT/EP2016/001332 WO2017032441A1 (de) 2015-08-25 2016-08-02 Elektromagnet und verfahren zu seiner herstellung

Publications (1)

Publication Number Publication Date
EP3341946A1 true EP3341946A1 (de) 2018-07-04

Family

ID=57044896

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16774849.0A Withdrawn EP3341946A1 (de) 2015-08-25 2016-08-02 Elektromagnet und verfahren zu seiner herstellung

Country Status (5)

Country Link
US (1) US20200227189A1 (zh)
EP (1) EP3341946A1 (zh)
CN (1) CN108352241A (zh)
DE (1) DE102015011238A1 (zh)
WO (1) WO2017032441A1 (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018000269A1 (de) * 2017-02-25 2018-08-30 Thomas Magnete Gmbh Elektromagnet und Verfahren zur Herstellung des Elektromagneten
DE102017008549B4 (de) 2017-09-12 2023-08-10 Thomas Magnete Gmbh Elektromagnet
CN107731448B (zh) * 2017-11-27 2020-09-04 安阳市华阳电磁铁制造有限公司 低功耗无噪音交流电磁铁及其液压动力装置
JP6936770B2 (ja) * 2018-05-28 2021-09-22 日立Astemo株式会社 電磁弁およびブレーキ制御装置
DE102018128144A1 (de) * 2018-11-09 2020-05-14 Svm Schultz Verwaltungs-Gmbh & Co. Kg Elektromagnetischer Aktuator mit Lagerelement
DE102019123517A1 (de) * 2019-09-03 2021-03-04 Thomas Magnete Gmbh Elektromagnet und Verfahren zur Herstellung desselben

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2690984B2 (ja) * 1987-12-29 1997-12-17 日立建機株式会社 電磁弁
DE102005048732B4 (de) * 2005-10-12 2024-07-25 Schaeffler Technologies AG & Co. KG Elektromagnetische Stelleinheit eines hydraulischen Wegeventils
DE102012214624A1 (de) * 2012-08-17 2014-02-20 Robert Bosch Gmbh Polrohr für eine Aktoreinrichtung
DE102012022254B3 (de) 2012-11-14 2014-03-13 Thomas Magnete Gmbh Elektromagnet und Verfahren zu seiner Herstellung
CN103700465B (zh) * 2013-12-17 2016-02-17 宁波华液机器制造有限公司 一种电磁铁
DE102013226619A1 (de) * 2013-12-19 2015-06-25 Robert Bosch Gmbh Verfahren zur Herstellung eines Polrohrs, Polrohr für einen Elektromagneten und Magnetventil

Also Published As

Publication number Publication date
WO2017032441A1 (de) 2017-03-02
CN108352241A (zh) 2018-07-31
US20200227189A1 (en) 2020-07-16
DE102015011238A1 (de) 2017-03-02

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Inventor name: LEINWEBER, MARC

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Inventor name: ERMERT, MICHAEL

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