EP2580765A1 - Agencement d'une thermistance ctn dans un électro-aimant - Google Patents

Agencement d'une thermistance ctn dans un électro-aimant

Info

Publication number
EP2580765A1
EP2580765A1 EP11721504.6A EP11721504A EP2580765A1 EP 2580765 A1 EP2580765 A1 EP 2580765A1 EP 11721504 A EP11721504 A EP 11721504A EP 2580765 A1 EP2580765 A1 EP 2580765A1
Authority
EP
European Patent Office
Prior art keywords
ntc resistor
contact
arrangement
projection
electromagnet
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Withdrawn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
EP11721504.6A
Other languages
German (de)
English (en)
Inventor
Janusz Zurke
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.)
Pierburg GmbH
Original Assignee
Pierburg 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 Pierburg GmbH filed Critical Pierburg GmbH
Publication of EP2580765A1 publication Critical patent/EP2580765A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/04—Arrangements of electric connections to coils, e.g. leads
    • 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
    • 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
    • H01F2007/062—Details of terminals or connectors for electromagnets

Definitions

  • the invention relates to an arrangement of an NTC resistor in an electromagnet having an electromagnetic coil with a main winding and a Mauwickiung, a coil support on which the electromagnetic coil is wound, two justifyanschuoppositionn for power supply, an NTC resistor and Greieitungen for interconnection of the contact terminals, the main winding and the secondary winding of the electromagnetic coil and the NTC resistor.
  • NTC resistors to electromagnets serve the temperature compensation in the use of magnetic coils with greatly varying thermal load
  • the electromagnetic coils usually have a main and a secondary winding, which are wound together on the bobbin, the NTC Resistor parallel to the secondary winding and this circuit is connected in series with the main winding or the NTC resistor in series with the secondary winding and this circuit is connected in parallel to the main winding.
  • the temperature compensation is necessary because when using a magnetic coil in the motor vehicle temperature fluctuations between about -30 ° C to about 150 ° C prevail.
  • NTC resistors By means of which is achieved that at the same applied pulse width modulated signal at the Maisanschi Republicanten a same magnetic force is generated at the coil ,
  • the use of such NTC resistors is known for example from DE 42 05 563 A1.
  • the NTC resistor is arranged in the power supply, with a secondary coil being connected in parallel with it. This should also improve the constancy of the magnetic force at the same Anêtsignaien. How the resistance is fixed is not the subject of the application.
  • the NTC resistors used in such circuits are manufactured as standard parts with soldered contact wires. These contact wires are usually first bent and then soldered to contacts of the coil.
  • the solder used contains either lead or has a production-related insufficient melting temperature.
  • the NTC resistor is plugged between the ends of the two contact lines and at least one of the ends of the contact lines is spring loaded. This means that both terminals bear against the resistor, wherein the force acting on the resistance of the ends of the twomaschinefeitungen acts in the direction of the resistance, whereby it is clamped. This causes by applying a spring force connecting the resistor to both contact lines without additional fasteners.
  • the coil carrier on a projection which serves as a fastening means and which loads the end of the second Kunststofffeitung towards the end of the first contact line.
  • the spring force is thus applied without additional components.
  • the bobbin on an axially extending inner hollow cylindrical body, from which two substantially annular plates which define the Eiektromagnetspule axially and the projection which is arranged at the axial end of the hollow-cylindrical body, radially extend the end of the second contact line abuts the projection between the projection and the first annular plate, and the end of the first contact line is disposed on the first plate between the projection and the first annular plate. Pinching the NTC Resistance between the two contact lines is thus due to the spring force of the projection. Also in this embodiment results in a particularly cost-effective and simple production and installation.
  • one end of one of the contact lines serves as a fastening means. The spring force is thus applied directly through the contact lines, which are tensioned by elastic deformation when the NTC resistor is introduced. Other components are not needed in this version.
  • a spring element serving as a fastening means is welded to the ends of the contact lines.
  • This spring element can be screwed or injected, for example, on the scuffing support. Since the spring element is thermally insensitive in contrast to the NTC resistor, a weld can be made for contacting.
  • the contact lines and the contact terminals for power supply stamped and bent parts are produced and assembled particularly cost-effectively.
  • the fastening means with the NTC resistor is encapsulated with plastic, so that a component is formed, which is encapsulated against external influences. A later release is thus reliably prevented.
  • a component can also be pre-assembled as a finished assembly and installed in the electromagnet.
  • FIG. 1 shows a three-dimensional representation of an arrangement according to the invention of an NTC resistor on a chip carrier.
  • Figure 2 shows a side view of an electromagnet with the inventive arrangement of Figure 1 in a sectional view.
  • the arrangement according to the invention will be described with reference to an electromagnet 2, as it can be used, for example, for a solenoid valve.
  • the electromagnet 2 consists of a Elektromagnetspuie 4 with a main winding and a secondary winding, which are wound on a baffle carrier 6.
  • the bobbin 6 consists of a hollow cylindrical axially extending body 8, from which in the radial direction outwardly annular plates 10, 12 extend, which limit the Elektromagnetspuie 4 axiai.
  • the contact terminals 14, 16 are each the first ends of stamped and bent parts, which are held in formed in the baffle support 6 correspondingly shaped recesses 18, 20 and serve as Druckieitungen 22, 24, 26. These are in the area between the Plate 10 and an axial end 28 of the hollow cylindrical body 8 of the bobbin 6 different substantially axially of the plate 10 extending formations 30 are arranged, in which the recesses 18, 20 are formed.
  • the first contact line 22 extends from the contact terminal 14 through the recess 18 on the surface of the plate 10 along about a quarter circle around the hollow cylindrical body 8.
  • an end 32 of the first contact line 22 according to the invention, a substantially pijanchenförmiger NTC resistor 34th is arranged, which rests at its opposite axial end on an end 36 of the second contact line 24, via which the secondary winding is connected in parallel to the NTC resistor 34.
  • This end 36 of the second contact line 24 abuts a projection 38 which extends from the axial end 28 of the hollow cylindrical body 8 in radiaier direction.
  • This projection 38 is slightly elastically deformed by the insertion of the contact lines 22, 24 and the NTC resistor 34.
  • the projection exerts a spring force on the end 36 of the second Kunststoffieitung 24 and via this on the NTC resistor 34, resulting in a clamping attachment of the NTC resistor 34 between the two ends 32, 36 of the contact lines 22, 24th leads.
  • the projection 38 thus serves as a fastening means for the NTC resistor 34.
  • the memoriieitung 26 serves to connect the contact terminal 16 with the main winding of Eiektromagnetspule 4, which is connected in series with the parallel connection of NTC resistor 34 and secondary winding.
  • this arrangement is insensitive to thermal stress or mechanical vibration load. By assembling the electromagnet and the encapsulation, the clamping force can be additionally increased. The described arrangement is easy to assemble and manufacture.
  • the spring force can also be generated directly by the contact lines, or separate spring elements can be used to clamp the NTC resistor, wherein soldering points can be dispensed with in each case.
  • the ends of the lines can be overmolded with the NTC resistor with plastic. Such a part can also be pre-assembled.

Landscapes

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

Abstract

Les thermistances CTN, destinées à une compensation de température, sont généralement fixées sur les lignes de contact d'un électro-aimant au moyen de soudures. En cas de sollicitation thermique ou de contrainte de vibrations, ceci entraîne une réduction de la solidité de la soudure. L'objectif de l'invention est de résoudre ce problème. A cet effet, un moyen de fixation déformable élastiquement exerce une force de ressort qui permet de fixer la thermistance CTN (34) entre les extrémités de deux lignes de contact (22, 24).
EP11721504.6A 2010-06-09 2011-05-18 Agencement d'une thermistance ctn dans un électro-aimant Withdrawn EP2580765A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010023240A DE102010023240B4 (de) 2010-06-09 2010-06-09 Anordnung eines NTC-Widerstandes in einem Elektromagneten
PCT/EP2011/058066 WO2011154231A1 (fr) 2010-06-09 2011-05-18 Agencement d'une thermistance ctn dans un électro-aimant

Publications (1)

Publication Number Publication Date
EP2580765A1 true EP2580765A1 (fr) 2013-04-17

Family

ID=44626591

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11721504.6A Withdrawn EP2580765A1 (fr) 2010-06-09 2011-05-18 Agencement d'une thermistance ctn dans un électro-aimant

Country Status (4)

Country Link
US (1) US8482370B2 (fr)
EP (1) EP2580765A1 (fr)
DE (1) DE102010023240B4 (fr)
WO (1) WO2011154231A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI539753B (zh) * 2013-10-07 2016-06-21 宏碁股份有限公司 電子裝置
DE102016113313A1 (de) * 2016-07-19 2018-01-25 Eagle Actuator Components Gmbh & Co. Kg Temperaturkompensiertes Ventil
DE102014005809A1 (de) * 2014-04-24 2015-10-29 Eagle Actuator Components Gmbh & Co. Kg Schaltung zur Temperaturkompensation
US9818523B2 (en) * 2014-08-19 2017-11-14 Toshiba Memory Corporation Electromagnet, tester and method of manufacturing magnetic memory
FR3074230B1 (fr) * 2017-11-30 2021-02-26 Valeo Systemes De Controle Moteur Dipositif electromagnetique
DE102018119331B4 (de) * 2018-08-08 2024-07-25 Endress+Hauser Flowtec Ag Herstellungsverfahren einer Spulenvorrichtung, Spulenvorrichtung, Messaufnehmer mit Spulenvorrichtung, Messgerät mit einem Messaufnehmer

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE386626C (de) * 1920-04-23 1923-12-20 Gen Electric Verfahren zur Herstellung von elektrischen Widerstaenden aus sproedem, nicht formbarem Material
US2480166A (en) * 1945-01-08 1949-08-30 Gen Motors Corp Resistor for thermogauges
SE398280B (sv) * 1975-11-20 1977-12-12 Eldon Ab Obegrensat kortslutningsseker elektrisk transformator
US5204044A (en) * 1989-03-28 1993-04-20 Aisan Kogyo Kabushiki Kaisha Method of asembling a DC solenoid with a thermistor
DE4205563A1 (de) * 1992-02-22 1993-08-26 Pierburg Gmbh Elektromagnetspule fuer ventile
US5722632A (en) * 1995-04-20 1998-03-03 Borg-Warner Automotive, Inc. Temperature-compensated exhaust gas recirculation system
US5628296A (en) * 1996-01-16 1997-05-13 Borg-Warner Automotive, Inc. Temperature-compensated exhaust gas recirculation system
DE19646986B4 (de) * 1996-11-14 2007-04-19 Pierburg Gmbh Elektromagnetspule für Ventile
JPH11135304A (ja) * 1997-10-27 1999-05-21 Murata Mfg Co Ltd Ｎｔｃサーミスタ及び電流制限回路
MY120265A (en) * 1999-03-11 2005-09-30 Murata Manufacturing Co Negative temperature coefficient thermistor
DE10017661C2 (de) * 2000-04-08 2002-02-07 Bosch Gmbh Robert Anordnung mit einer Spule und einer in Serie geschalteten Widerstandsleiterbahn mit NTC-Charakteristik
WO2009018954A1 (fr) 2007-08-09 2009-02-12 Tyco Electronics Belgium Ec N.V. Actionneur électromagnétique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011154231A1 *

Also Published As

Publication number Publication date
DE102010023240A1 (de) 2011-12-15
US8482370B2 (en) 2013-07-09
US20130076468A1 (en) 2013-03-28
WO2011154231A1 (fr) 2011-12-15
DE102010023240B4 (de) 2013-02-28

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