EP1970919B1 - Bobine électromagnétique - Google Patents

Bobine électromagnétique Download PDF

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Publication number
EP1970919B1
EP1970919B1 EP08101984A EP08101984A EP1970919B1 EP 1970919 B1 EP1970919 B1 EP 1970919B1 EP 08101984 A EP08101984 A EP 08101984A EP 08101984 A EP08101984 A EP 08101984A EP 1970919 B1 EP1970919 B1 EP 1970919B1
Authority
EP
European Patent Office
Prior art keywords
coil
contact pins
holding member
wire
electromagnetic coil
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.)
Active
Application number
EP08101984A
Other languages
German (de)
English (en)
Other versions
EP1970919A2 (fr
EP1970919A3 (fr
Inventor
Holger Last
Robert RÜTHER
Dimitri Krou
Thomas Groetzinger
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.)
Nass Magnet GmbH
Original Assignee
Nass Magnet 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 Nass Magnet GmbH filed Critical Nass Magnet GmbH
Publication of EP1970919A2 publication Critical patent/EP1970919A2/fr
Publication of EP1970919A3 publication Critical patent/EP1970919A3/fr
Application granted granted Critical
Publication of EP1970919B1 publication Critical patent/EP1970919B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers

Definitions

  • the invention relates to an electromagnetic coil with a bobbin, a winding of coil wire and two contact pins to which the ends of the coil wire are connected.
  • the electromagnetic coil When using the electromagnetic coil, it may come to relative movements, which are transmitted via a soldered circuit board or a plug on the pins and thereby lead to a load on the contact.
  • the US 2004/0252003 A1 discloses an electromagnetic coil according to the preamble of claim 1, wherein contact pins are arranged at the end of an arcuate and resilient retaining element.
  • the ends of the coil wire are fixed to contact stirrups, which are inserted into recesses of a holding device.
  • a protruding from the recess part of the contact bracket each forms a contact pin.
  • the invention is therefore based on the object to improve the electromagnetic coil to the effect that the contact is relieved.
  • the electromagnetic coil according to the invention comprises a bobbin, a winding of coil wire and two contact pins, wherein the contact pins are secured to at least one resilient retaining element and movable relative to the bobbin.
  • the holding member is arcuate and integrally formed with the bobbin, and the ends of the coil wire are fixed to the movable / resilient contact pins.
  • the arcuate holding element has recesses for receiving the coil body to the contact pins Leading coil wire, wherein the coil wire is guided in the recesses in the region of the arc-shaped holding element from the contact pins to the point where the holding element is attached to the bobbin.
  • the resilient contact pins can compensate for any relative movements and thereby avoid unwanted loading of the contact.
  • the holding element can be supported on one or both sides of the bobbin.
  • the contact pins are fastened in a middle region of the holding element.
  • a wire deflection is provided in order to deflect the lead from the bobbin to the contact pins coil wire before it is received in the recess of the support member.
  • the wire deflection facilitates in particular the handling with an automatic winding device.
  • the electromagnetic coil shown in the drawing has a bobbin 1 with a winding of coil wire 2 and two contact pins 3, 4.
  • the two ends 2a, 2b of the coil wire 2 are fixed to the contact pins 3 and 4, respectively. This can be done for example by soldering or Anwickeln.
  • the contact pins 3, 4 are mounted on a resilient retaining element 5, which is formed in the illustrated embodiment arcuate and integral with the bobbin.
  • the holding element is here supported with its two end portions 5a, 5b on the bobbin, wherein contact pins 3, 4 are fixed in a central region of the holding element.
  • both contact pins 3, 4 are arranged on the same holding element, a separate, resilient retaining element can be provided in the invention for each contact pin.
  • the coil wire 2 is guided in the region of the holding element 5 of the contact pins 3 and 4 to at least to the point at which the holding element is mounted on the bobbin in recesses 6, 7. In this way it is ensured that the contact pins 3, 4 are movable relative to the bobbin 1, but on the other hand, the coil wire is not damaged by these relative movements.
  • a wire deflection 8 (FIG. Fig. 1 ) intended.
  • the coil wire 2 coming from the winding can be guided before the wire deflection 8 in a groove 9 formed in the bobbin 1.
  • the wire guide 8 thus deflects the coil wire from the groove 9 of the bobbin into the recess 6 or 7 of the holding element 5.
  • the stroke of the holding element 5 can be limited by stops in both directions.
  • stops 10, 11 are provided on one side of the holding element, which cooperate for example with a yoke 12 of the electromagnetic coil. From the center position of the holding element 5 is according to Figure 3 a stroke X2 possible.
  • the stops in the other direction of movement are formed in the illustrated embodiment by the lower ends 3a, 4a of the contact pins 3, 4, which cooperate with a counter surface, in particular the bobbin 1 and allow a stroke X1.
  • the spring properties of the holding element 5 can be adjusted by its geometry (length, width, thickness).
  • the electromagnetic coil is further provided with positioning means, in particular a positioning pin 13, which is preferably formed integrally with the bobbin 1. This positioning pin is used to align the coil or for correct orientation of the movable or resilient contact pins 3, 4 in a housing.
  • the one-piece or one-piece design of the holding element 5 with the bobbin 1 allows a cost-effective production. Furthermore, damage to the coil wire is avoided by its placement in the recess or groove of the holding element 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)

Claims (9)

  1. Bobine électromagnétique, qui est dotée d'un corps de bobine (1), d'un enroulement en fil pour bobine (2) et de deux pointes de contact (3, 4), sachant que
    - les pointes de contact (3, 4) sont fixées à au moins un élément de retenue (5) élastique et peuvent être déplacées par rapport au corps de bobine (1),
    - l'élément de retenue (5) est réalisé en forme d'arc et est formé d'une pièce avec le corps de bobine (1), et
    - les extrémités (2a, 2b) du fil pour bobiné (2) sont fixées aux pointes de contact mobiles / élastiques, caractérisée en ce que
    l'élément de retenue (5) en forme d'arc est doté d'évidements (6, 7), destinés à recevoir le fil pour bobine (2) conduisant aux pointes de contact (3, 4), et que le fil pour bobine (2) est guidé, dans la zone de l'élément de retenue (5) en forme d'arc, dans les évidements (6, 7), à partir des pointes de contact (3, 4) jusqu'à l'endroit, où l'élément de retenue (5) en forme d'arc est fixé au corps de bobine (1).
  2. Bobine électromagnétique selon la revendication 1, caractérisée en ce que l'élément de retenue (5) est maintenu sur le corps de bobine (1), d'un côté ou des deux côtés.
  3. Bobine électromagnétique selon la revendication 1, caractérisée en ce que les évidements (6, 7) sont réalisés sous la forme de rainures.
  4. Bobine électromagnétique selon la revendication 1, caractérisée en ce qu'est prévu un dispositif de déviation (8) du fil pour bobine, pour faire dévier le fil pour bobine (2) conduisant du corps de bobine (1) aux pointes de contact (3, 4), avant que celui-ci soit reçu dans l'évidement (6, 7) de l'élément de retenue (5).
  5. Bobine électromagnétique selon la revendication 4, caractérisée en ce que le corps de bobine (1) est doté d'une rainure (9), dans laquelle est guidé le fil pour bobine (2), qui conduit aux pointes de contact (3, 4), sachant que le dispositif de déviation (8),fait dévier le fil pour bobine à partir de la rainure (9) du corps de bobine jusque dans l'évidement (6, 7) de l'élément de retenue (5).
  6. Bobine électromagnétique selon la revendication 1, caractérisée en ce que l'élément de retenue (5) est maintenu, à ses deux extrémités (5a, 5b), sur le corps de bobine (1), et que les pointes de contact (3, 4) sont fixées dans une zone centrale de l'élément de retenue (5).
  7. Bobine électromagnétique selon la revendication 1, caractérisée en ce que, pour la limitation de la course de l'élément de retenue (5), une ou plusieurs butées (9, 10) sont prévues.
  8. Bobine électromagnétique selon la revendication 7, caractérisée en ce que les butées sont formées, au moins dans une direction de déplacement, par les extrémités (3a, 4a) des pointes de contact (3, 4).
  9. Bobine électromagnétique selon la revendication 1, caractérisée en ce que sont prévus des moyens de positionnement, en particulier au moins une broche de positionnement (13), qui sont formés d'une pièce avec le corps de bobine (1).
EP08101984A 2007-03-13 2008-02-26 Bobine électromagnétique Active EP1970919B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007012101 2007-03-13

Publications (3)

Publication Number Publication Date
EP1970919A2 EP1970919A2 (fr) 2008-09-17
EP1970919A3 EP1970919A3 (fr) 2011-01-05
EP1970919B1 true EP1970919B1 (fr) 2013-01-02

Family

ID=39619191

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08101984A Active EP1970919B1 (fr) 2007-03-13 2008-02-26 Bobine électromagnétique

Country Status (2)

Country Link
US (1) US7750786B2 (fr)
EP (1) EP1970919B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWM359783U (en) * 2009-02-26 2009-06-21 Delta Electronics Inc Inductor
KR102697696B1 (ko) * 2020-03-17 2024-08-22 에이치엘만도 주식회사 솔레노이드 코일 구조체 및 솔레노이드 코일 어셈블리

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7007686A (fr) * 1970-05-28 1971-11-30
US5774036A (en) * 1995-06-30 1998-06-30 Siemens Electric Limited Bobbin-mounted solenoid coil and method of making
US5999079A (en) * 1996-09-30 1999-12-07 Siemens Aktiengesellschaft Magnet coil with radial terminal pins and the method for manufacturing the coil
KR100268460B1 (ko) * 1996-12-07 2000-10-16 윤종용 표면실장용 반도체ic의 위치결정장치
DE10003055B4 (de) * 2000-01-25 2004-09-09 Fci Automotive Deutschland Gmbh Steuereinheit einer Ventilmechanik
US20040108395A1 (en) * 2001-09-13 2004-06-10 Hitachi, Ltd. Electromagnetic fuel injector
US6369682B1 (en) * 2000-09-27 2002-04-09 Delphi Technologies, Inc. Multifunctional coil assembly for an injector
US6644585B2 (en) * 2001-12-10 2003-11-11 Delphi Technologies, Inc. Solenoid coil assembly and method for winding coils
US6903647B2 (en) * 2002-05-08 2005-06-07 Kelsey-Hayes Company Solenoid valve coil having an integrated bobbin and flux ring assembly
JP2004179498A (ja) * 2002-11-28 2004-06-24 Minebea Co Ltd コイルボビン構造
US7289012B2 (en) * 2004-04-08 2007-10-30 Polymer Technologies Inc. Electromagnetic coil assembly
JP2006090266A (ja) * 2004-09-27 2006-04-06 Keihin Corp 電磁式燃料噴射弁
DE102004051331A1 (de) 2004-10-21 2006-05-11 Hydac Electronic Gmbh Betätigungsvorrichtung

Also Published As

Publication number Publication date
US7750786B2 (en) 2010-07-06
EP1970919A2 (fr) 2008-09-17
US20080309447A1 (en) 2008-12-18
EP1970919A3 (fr) 2011-01-05

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