EP1222671B1 - Bobine magnetique en deux parties et son procede de production - Google Patents

Bobine magnetique en deux parties et son procede de production Download PDF

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Publication number
EP1222671B1
EP1222671B1 EP01949246A EP01949246A EP1222671B1 EP 1222671 B1 EP1222671 B1 EP 1222671B1 EP 01949246 A EP01949246 A EP 01949246A EP 01949246 A EP01949246 A EP 01949246A EP 1222671 B1 EP1222671 B1 EP 1222671B1
Authority
EP
European Patent Office
Prior art keywords
magnet coil
contact
contact element
connection part
housing body
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.)
Expired - Lifetime
Application number
EP01949246A
Other languages
German (de)
English (en)
Other versions
EP1222671A1 (fr
Inventor
Waldemar Hans
Mathias Linssen
Christof Vogel
Helmut Hennemann
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1222671A1 publication Critical patent/EP1222671A1/fr
Application granted granted Critical
Publication of EP1222671B1 publication Critical patent/EP1222671B1/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
    • H01F5/00—Coils
    • H01F5/04—Arrangements of electric connections to coils, e.g. leads

Definitions

  • the invention relates to a two-part magnetic coil according to the preamble of claim 1 and a method for their preparation according to the preamble of claim 14.
  • the magnetic coil comprises an insulating material consisting essentially hollow cylindrical bobbin, which is provided with two anchored in an end region of the bobbin and out of this axially projecting connecting elements, wherein the bobbin is mechanically wound.
  • the bobbin bottom forming the bottom of the winding space has, in the axial direction, different winding levels which are offset relative to one another in the radial direction, wherein the transitions between the winding levels are in each case formed as a slope with an inclination of approximately 30 °.
  • the bobbin bottom is, except at the transitions, provided with grooves for the winding wire.
  • a disadvantage of the DE 295 14 315 U1 known magnetic coil is in particular due to the length of the terminal support length of the solenoid.
  • the Magnetic coil is susceptible to damage, for example, in the machine winding with coil wire.
  • the terminal supports are prone to bending.
  • the magnetic coil according to the invention with the features of claim 1 and the inventive method for producing a magnetic coil having the features of claim 13 have the advantage that the short connection carrier ensure easy handling of the magnetic coil in further processing steps and on the other an arbitrarily ausformbares contact element, For example, a tab, connected by a simple snap connection with the solenoid and then soldered to the terminal carriers.
  • connection carrier and the contact elements which can be made for example by punching out of a metal sheet.
  • the connecting part between the magnetic coil and the contact element is made of a flexible plastic, which allows a plugging of the contact element on the coil carrier or the valve housing.
  • the contact tabs of the contact element are still connected to each other in the production, which is the correct positioning of the contact tabs relative to each other simplified. After encapsulation with plastic, the contact tabs are separated by punching.
  • the contact element Due to the angled projections of the contact tabs, the contact element receives a readily connectable to the terminal carriers form.
  • the solenoid coil 2 according to the invention is particularly suitable as a component for a fuel injection valve, as it is used for example for the injection of fuel into the combustion chamber of a mixture-compressing, spark-ignited internal combustion engine.
  • Fig. 1A-1C show a schematic representation of a terminal support 1 of a solenoid coil 2 according to the invention in different views.
  • Fig. 1A shows a plan view of the terminal support 1, which is required to lock wire ends 7 of the wound as a magnetic coil 2 wire 6 in a suitable manner so that they can be connected to the leading to a control unit for the fuel injection valve electrical lines.
  • the terminal support 1 in this case has an overall lug-shaped form, which has lateral projections 25 and 26.
  • the shorter projections 25 serve in particular to stabilize the position of the terminal carrier 1 in a coil carrier 3.
  • the supernatants 26 are used to broaden the surface of the terminal support 1 in order to attach the ends of the winding 5 on the terminal support 1, for example by soldering after winding the bobbin 3.
  • terminal carrier 1 holes 27 and 28, which serve analogously to the supernatants'25 and 26 of the fixation of the terminal carrier 1 in the bobbin 3 and the attachment of the wire ends 7.
  • the wire ends 7 can be passed through the hole 28 and then crushed.
  • the hole 27 is filled in the injection of the terminal support 1 in the bobbin 3 with plastic, whereby the terminal support 1 is fixed in the bobbin 3.
  • Fig. 1B shows a corresponding side view of the terminal support 1. Due to its simple shape of the terminal support 1 in a simple manner, for example by punching out of a sheet produced.
  • Fig. 1C shows a cross section along in Fig. 1A line marked with IC-IC.
  • the terminal carrier 1 may have rounded edges, which simplifies further processing.
  • Fig. 2A-2C show a schematic view and a schematic longitudinal section through the coil carrier 3 of a magnetic coil 1 according to the invention, as well as a detail in the in Fig. 2B area marked with IIC.
  • Fig. 2A is a schematic side view of the unwound bobbin 3 with already mounted in the bobbin 3 terminal carriers 1 shown. Due to their simple shape, the terminal carrier 1 can be easily connected to the bobbin 3.
  • the bobbin 3 is mainly made of plastic by injection molding. The terminal support 1 is injected up to the lateral projections 25 in the bobbin 3 with.
  • the bobbin 3 is formed substantially hollow cylindrical and has a circumferential recess 30 which receives the winding 5.
  • the terminal carrier 1 are injected.
  • Fig. 2B shows a schematic sectional view of a longitudinal section through the bobbin 3 of the magnetic coil 2 according to the invention.
  • the terminal support 1 are mounted in the protruding end portion 31 of the projection 4 of the bobbin 3.
  • Fig. 2C shows for clarity an enlarged section Fig. 2B in the field of IIC.
  • the connection carrier 1 are up to the in Fig. 1A Inserted with E point in the projection 4 of the bobbin 3.
  • Fig. 3A shows a view of the connection carrier side end of a solenoid coil according to the invention 2. From a winding 5 of the magnetic coil 2, only the wire ends 7, which are wound around the connection carrier 1, visible.
  • Fig. 3B shows a side view of a magnetic coil 2 according to the invention, which is wound with the winding 5 of a wire 6 on the bobbin 3.
  • the wire ends 7 are guided by the winding 5 of the magnetic coil 2 via the projection 4 of the bobbin 3 to the terminal carriers 1.
  • the wire ends 7 are guided over a formed in the projection 4 of the bobbin 3 recess 32 to the terminal carriers 1 and are wound at least once in the area between the projections 25 and 26 to the terminal support 1 and may have flats 8 for better attachment to the terminal carriers 1 ,
  • the attachment is possible for example by welding or soldering or by attaching the wire ends 7 in the hole 27.
  • Fig. 4A-C show schematically three successive processing steps of the manufacturing process of a contact element 9 according to the invention.
  • Fig. 4A shows a schematic view of an embodiment of the contact element 9, which as well as the terminal support 1 can be punched out of a sheet in a simple manner.
  • the contact element 9 in this case has two contact tabs 10, which have rounded front edges 11.
  • the two contact tabs 10 are punched together by a bridge 12, which is later removed.
  • a bridge 12 which is later removed.
  • the projections 13 serve in a later processing step to be connected to the terminal carriers 1.
  • a plurality of holes 14a, 14b in the present embodiment per contact lug 10 are two.
  • the plastic penetrates the holes 14a, 14b and ensures secure anchoring of the contact lugs 10 of the contact element 9 in the plastic.
  • Fig. 4B shows a schematic view of the contact element 9 after encapsulation of the contact tabs 10 with plastic.
  • a first plastic web 15 is formed in the region of the holes 14a. The plastic penetrates through the holes 14a and holds the contact tabs 10 on a determined by the width of the web 12 distance from each other.
  • an inventive connecting parts 16 is molded at the plastic web 15.
  • a second plastic web 19 is mounted in the region of the holes 14 b, which serves to stabilize the position of the contact tabs 10 to each other.
  • the metallic web 12 is removed by punching.
  • the first plastic web 15 is continued in the connecting part 16, which has been molded by means of a suitable, not shown here device to the contact element 9.
  • the connecting part 16 has the shape of a hollow cylinder opened to one side.
  • the cylinder wall is formed to slightly more than half of a complete hollow cylinder.
  • the projections 13, which later serve to connect the contact tabs 10 with the terminal carriers 1, are laterally out of the plastic web 15 out.
  • Fig. 4C shows in a side view the in Fig. 4B illustrated embodiment of the contact element 9 after a further processing step.
  • the contact element 9 at a bending point 17, which is located near the plastic web 15, bent at an angle of approximately 30 ° relative to the horizontal.
  • Fig. 5A-E show a schematic representation of the method steps for connecting the solenoid 2 according to the invention with the contact element.
  • Fig. 5A shows a view similar to Fig. 3A on the connection carrier end of the bobbin 3.
  • the terminal support 1 and the wire ends 7 are visible on the end portion 4 of the bobbin 3.
  • Fig. 5B shows in the same representation the bobbin 3 after bending the terminal support 1.
  • the terminal support 1 are preferably bent at an angle of 90 ° relative to the previous position to the outside.
  • Fig. 5C shows a side view of the already mounted on a housing body 18 magnetic coil 2.
  • the housing body 18 in this case has an outer housing 21, which the Solenoid 2 encapsulates, and a housing inner part 22, which passes through the magnetic coil 2 and has an outer diameter which corresponds to the inner diameter of the connecting part 16. Due to the special shape of the connecting part 16 according to the invention this can be plugged into the housing inner part 22 in a stable snap connection.
  • the connecting part 16 surrounds the housing inner part 22 in an angular range which is greater than 180 °, whereby the connecting part 16 can not slide in the radial direction from the housing inner part 22.
  • Fig. 5D shows in the same view as Figs. 5A and 5B the mounted on the housing inner part 22 bobbin 3 with the attached via the connecting part 16 contact element 9.
  • the .Vorsprünge 13 of the contact lugs 10 of the contact element 9 come to lie on the bent terminal supports 1 of the bobbin 3.
  • the first plastic web 15 of the contact tabs 10 of the contact element 9 in this case has an outer shape, which prevents slippage of the connecting part 16 on the housing inner part 22.
  • the invention is not limited to the illustrated embodiment, but also suitable for a variety of other forms of the contact element 9. Also coils with multiple mutually insulated windings can be provided by 'the method with an arbitrarily shaped contact element.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Claims (16)

  1. Bobine magnétique (2) comprenant un support de bobine (3) essentiellement cylindrique creux constitué d'un matériau isolant, qui est poussé sur un corps de boîtier (18) et qui est pourvu d'au moins deux supports de raccordement (1) ancrés dans une région frontale (4) du support de bobine (3) et saillant axialement depuis celui-ci, et un élément de contact (9), la bobine magnétique (2) et l'élément de contact (9) étant deux composants séparés qui peuvent être connectés l'un à l'autre par une pièce de connexion (16) de l'élément de contact (9) montée sur le corps de boîtier (18) et par un contact électrique (20), caractérisée en ce que la pièce de connexion (16) présente la forme d'un cylindre creux ouvert vers un côté et vient de ce fait partiellement en prise autour du corps de boîtier (18).
  2. Bobine magnétique selon la revendication 1, caractérisée en ce que l'élément de contact (9) présente au moins deux saillies (13) qui peuvent être connectées aux supports de raccordement (1) de la bobine magnétique (2) par le contact (20).
  3. Bobine magnétique selon la revendication 1 ou 2, caractérisée en ce que le contact (20) est réalisé de préférence par soudage ou brasage.
  4. Bobine magnétique selon l'une quelconque des revendications 1 à 3, caractérisée en ce que l'élément de contact (9) présente au moins deux pattes de contact (10) qui sont connectées l'une à l'autre par une nervure (12).
  5. Bobine magnétique selon la revendication 4,
    caractérisée en ce que les pattes de contact (10) présentent des trous (14a, 14b).
  6. Bobine magnétique selon la revendication 4 ou 5, caractérisée en ce que l'élément de contact (9) est connecté par une première nervure en plastique (15) à la pièce de connexion (16), la première nervure en plastique (15) s'étendant entre les pattes de contact (10) et l'un des trous (14a) se trouvant dans les pattes de contact (10) étant pratiqué dans la première nervure en plastique (15).
  7. Bobine magnétique selon la revendication 6, caractérisée en ce que deux autres des trous (14b) sont connectés l'un à l'autre par une deuxième nervure en plastique (19) qui s'étend entre les pattes de contact (10).
  8. Bobine magnétique selon la revendication 7, caractérisée en ce que le corps de boîtier (18) est cylindrique.
  9. Bobine magnétique selon la revendication 8, caractérisée en ce que la pièce de connexion (16) entoure le corps de boîtier (18) sur une plage angulaire supérieure à 180°.
  10. Bobine magnétique selon l'une quelconque des revendications 1 à 9, caractérisée en ce que la pièce de connexion (16) se compose de préférence d'un plastique élastique.
  11. Bobine magnétique selon la revendication 6 ou 7, caractérisée en ce que la pièce de connexion (16) est moulée par injection sur la première nervure en plastique (15).
  12. Bobine magnétique selon la revendication 11, caractérisée en ce que des saillies (13) des au moins deux pattes de contact (10) sont cintrées suivant un certain angle.
  13. Procédé pour connecter une bobine magnétique (2), qui présente un support de bobine (3) essentiellement cylindrique creux se composant d'un matériau isolant, qui peut être poussé sur un corps de boîtier (18) et qui est pourvu d'au moins deux supports de raccordement (1) ancrés dans une région frontale (4) du support de bobine (3) et saillant axialement depuis celui-ci, avec au moins un élément de contact (9), comprenant les étapes de procédé suivantes :
    - mise en place de la bobine magnétique (2) sur le corps de boîtier (18),
    - enfoncement d'une pièce de connexion (16) montée sur l'élément de contact (9) sur le corps de boîtier (18), la pièce de connexion (16) présentant une forme de cylindre creux ouvert vers un côté et venant de ce fait partiellement en prise autour du corps de boîtier (18), et
    - connexion de l'élément de contact (9) aux supports de raccordement (1) par un contact électrique (20).
  14. Procédé selon la revendication 13, caractérisé en ce que les supports de raccordement (1) de la bobine magnétique (2) sont cintrés suivant un angle prédéterminé.
  15. Procédé selon la revendication 14, caractérisé en ce que les pattes de contact (10) de l'élément de contact (9) sont cintrées suivant un angle prédéterminé par rapport à la pièce de connexion (16).
  16. Procédé selon la revendication 15, caractérisé en ce qu'une nervure (12) s'étendant entre les pattes de contact (10) de l'élément de contact (9) est découpée par estampage.
EP01949246A 2000-06-14 2001-06-08 Bobine magnetique en deux parties et son procede de production Expired - Lifetime EP1222671B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10029279A DE10029279A1 (de) 2000-06-14 2000-06-14 Zweiteilige Magnetspule und Verfahren zu deren Herstellung
DE10029279 2000-06-14
PCT/DE2001/002147 WO2001097236A1 (fr) 2000-06-14 2001-06-08 Bobine magnetique en deux parties et son procede de production

Publications (2)

Publication Number Publication Date
EP1222671A1 EP1222671A1 (fr) 2002-07-17
EP1222671B1 true EP1222671B1 (fr) 2009-09-30

Family

ID=7645688

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01949246A Expired - Lifetime EP1222671B1 (fr) 2000-06-14 2001-06-08 Bobine magnetique en deux parties et son procede de production

Country Status (9)

Country Link
US (2) US6927659B2 (fr)
EP (1) EP1222671B1 (fr)
JP (1) JP5001503B2 (fr)
KR (1) KR20020077866A (fr)
CN (1) CN1256737C (fr)
BR (1) BR0107136B1 (fr)
CZ (1) CZ2002472A3 (fr)
DE (2) DE10029279A1 (fr)
WO (1) WO2001097236A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4301047B2 (ja) * 2004-03-18 2009-07-22 株式会社デンソー コイル装置、コイル装置の製造方法、および燃料噴射弁
US8487729B2 (en) 2009-02-02 2013-07-16 Northrop Grumman Guidance & Electronics Magnetic solenoid for generating a substantially uniform magnetic field
DE102010055212A1 (de) * 2010-12-20 2012-06-21 Svm Schultz Verwaltungs-Gmbh & Co. Kg Elektromagnet mit einem Anschlussbereich
WO2015038600A1 (fr) * 2013-09-12 2015-03-19 Labinal, Llc Solénoïde comprenant un agencement à deux enroulements pour commander un flux de fuites

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4041430A (en) * 1976-03-08 1977-08-09 Guardian Electric Manufacturing Co. Coil bobbin and matching cover for solenoid assembly
JPS61124775U (fr) * 1985-01-25 1986-08-06
DE8515795U1 (de) * 1985-05-30 1986-09-25 Robert Bosch Gmbh, 7000 Stuttgart Elektrisch leitendes Verbindungselement
US5097242A (en) * 1988-07-08 1992-03-17 Mitsubishi Denki Kabushiki Kaisha Pulse generator pick up coil assembly
FR2655473B1 (fr) * 1989-12-06 1992-04-24 Valeo Electronique Connectique haute-tension d'une bobine d'allumage, en particulier pour moteur a combustion interne de vehicule automobile.
JP2599315B2 (ja) * 1991-03-11 1997-04-09 株式会社タムラ製作所 パルストランスの製造方法
JP2973629B2 (ja) * 1991-08-30 1999-11-08 アイシン精機株式会社 油圧ソレノイド
JP3054972B2 (ja) * 1992-01-16 2000-06-19 愛三工業株式会社 ステップモータ
DE4237354A1 (de) * 1992-11-05 1994-05-11 Bso Steuerungstechnik Gmbh Schaltvorrichtung
JP3246777B2 (ja) * 1992-12-16 2002-01-15 ティーディーケイ株式会社 電子部品の製造方法
CN1070995C (zh) * 1995-05-19 2001-09-12 西门子加拿大有限公司 具有改进净化阀的金属罐净化装置
DE29514315U1 (de) 1995-09-06 1995-11-02 Siemens Ag Magnetspule
US5828016A (en) * 1996-02-12 1998-10-27 Lucas Automation And Control Engineering, Inc. Low profile tactile switch
JPH09237710A (ja) * 1996-02-29 1997-09-09 Matsushita Electric Works Ltd コイル装置
DE19622634A1 (de) * 1996-06-05 1997-12-11 Nass Magnet Gmbh Magnetspule sowie Verfahren zu deren Herstellung
US6050245A (en) * 1997-02-12 2000-04-18 Siemens Canada Limited Canister vent valve having at least one sensor and single electric actuator operatively connected to a single electrical connector
DE10003055B4 (de) * 2000-01-25 2004-09-09 Fci Automotive Deutschland Gmbh Steuereinheit einer Ventilmechanik

Also Published As

Publication number Publication date
CN1256737C (zh) 2006-05-17
WO2001097236A1 (fr) 2001-12-20
US7132920B2 (en) 2006-11-07
DE10029279A1 (de) 2001-12-20
CN1383567A (zh) 2002-12-04
JP2004503930A (ja) 2004-02-05
BR0107136B1 (pt) 2013-06-04
JP5001503B2 (ja) 2012-08-15
US20050270131A1 (en) 2005-12-08
EP1222671A1 (fr) 2002-07-17
DE50115133D1 (de) 2009-11-12
KR20020077866A (ko) 2002-10-14
CZ2002472A3 (cs) 2002-06-12
BR0107136A (pt) 2002-05-28
US6927659B2 (en) 2005-08-09
US20020163410A1 (en) 2002-11-07

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