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EP1269490B1 - Electrical coil, in particular for solenoid valves - Google Patents

Electrical coil, in particular for solenoid valves Download PDF

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Publication number
EP1269490B1
EP1269490B1 EP00993854A EP00993854A EP1269490B1 EP 1269490 B1 EP1269490 B1 EP 1269490B1 EP 00993854 A EP00993854 A EP 00993854A EP 00993854 A EP00993854 A EP 00993854A EP 1269490 B1 EP1269490 B1 EP 1269490B1
Authority
EP
European Patent Office
Prior art keywords
coil wire
slot
coil
holder
insulation displacement
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
EP00993854A
Other languages
German (de)
French (fr)
Other versions
EP1269490A1 (en
Inventor
Jens Kolarsky
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 EP1269490A1 publication Critical patent/EP1269490A1/en
Application granted granted Critical
Publication of EP1269490B1 publication Critical patent/EP1269490B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00Coils
    • H01F5/04Arrangements of electric connections to coils, e.g. leads

Definitions

  • the invention relates to an electric coil according to the preamble of patent claim 1.
  • the electric coil according to the invention with the features of claim 1 has the advantage that in a simple way by means of the step on the support a support for the coil wire is created, on which this can be sheared off . In this way, the coil wire start and after the completion of the electrical winding, the coil wire end can be fixed to the bobbin. The beginning and end of the coil wire remain secured in this way until the insulation displacement connection is produced. Faulty contacts are thus avoided.
  • FIG. 2 shows a view in the direction of arrow II in Figure 1 on a holder with the coil wire start
  • Figure 3 is a view in the direction of arrow III in Figure 1 on a holder with the coil wire end
  • Figure 4 is a section along the line IV-IV in Figure 1 by a holder with clamped coil wire before generating a insulation displacement connection, on a larger scale.
  • An electric coil designated by 10 for a non-illustrated solenoid valve has a bobbin 11 and an electrical winding 12 ( Figure 1).
  • the bobbin 11 made of plastic as an injection molded part is constructed from a sleeve 13 and two flanges 14 and 15 connected to the end face thereof.
  • brackets 16 and 17 are formed for coil wire 18.
  • Each of the two pin-shaped from the flange 14 upstanding brackets 16 and 17 are provided with two intersecting slots 21 and 22 of different depth ( Figures 2 to 4).
  • a slot 21 shallow depth extends radially with respect to the bobbin longitudinal axis in an axial plane.
  • the slot 21 passes through the respective holder 16 or 17 in full width.
  • a slot 22 of greater depth crosses parallel to the bobbin longitudinal axis extending the slot 21 at right angles.
  • the slot 22 is adapted to the dimensions of a tongue-shaped insulation displacement contact 23 for contacting the coil wire 18 in the respective holder 16 and 17, respectively.
  • the slot 21 shallow depth is from the flanschabgewandten end face of the respective holder 16 and 17 with a wedge-shaped widening 24 (Figure 4). This is followed by a portion 25 of the slot 21, which has a greater width than the diameter of the coil wire 18. Thereafter, the slot 21 goes in the region of its bottom in a section 26 with a width which is smaller than the diameter of the coil wire 18. At the bottom of the slot 21, the portion 26 terminates at a designated as anvil 27 web, which the slot 22nd crossing greater depth in the longitudinal direction. Finally, the two brackets 16 and 17 are provided radially inwardly with an exposed step 28 which extends in the plane of the bottom formed by the slot 21 low depth.
  • the beginning of the coil wire 18 is inserted into the slot 21 of shallow depth of the holder 16 and clamped in the section 26 ( Figure 2). Subsequently, the winding 12th generated. Thereafter, the end of the coil wire 18 is secured in the slot 21 of the holder 17 in the same manner as in the holder 16 ( Figure 3).
  • the excess residual length of the coil wire start and the coil wire end is separated with a cutting tool, not shown, wherein the step 28 of the two brackets 16 and 17 serves as a support for the coil wire 18.
  • the tongue-shaped insulation displacement contacts 23 are inserted into the slots 22 of greater depth of the two brackets 16 and 17 for contacting the coil wire 18 ( Figure 4). Two legs 29 formed on the insulation displacement contact 23 thereby shear the insulation of the coil wire 18 resting on the anvil 27 and contact the electrical conductor of the coil wire.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Coils Of Transformers For General Uses (AREA)

Description

Stand der TechnikState of the art

Die Erfindung geht aus von einer elektrischen Spule nach der Gattung des Patentanspruchs 1.The invention relates to an electric coil according to the preamble of patent claim 1.

Eine derartige elektrische Spule ist aus der US-A-4 721 935 vorbekannt. Vor dem Abscheren des Spulendrahts durch einen Schneidklemmkontakt wird der Spulendraht in einem Klemmschlitz eingeklemmt. Die überschüssige Restlänge des Spulendrahts ist beim Abscheren nicht abgestützt. Auch die US-A-5 225 801 offenbart eine elektrische Spule, bei der ein Spulendraht vor dem Abscheren in einer Halterung festgeklemmt wird. Eine Abstützung der Restlänge des Spulendrahts erfolgt hier nicht an einer in der Ebene des Schlitzgrundes der Halterung verlaufenden freiliegenden Stufe. Aus der FR-A-2 517 105 ist eine weitere elektrische Spule bekannt, bei welcher der Spulendraht auf die Halterung aufgelegt, vom Schneidklemmkontakt in den Schlitz geringer Tiefe gefügt und durch Abtragen der isolierenden Drahtumhüllung kontaktiert wird. Nachteilig ist bei dieser bekannten Ausführungsform der fehlende Halt des Spulendrahtes vor dem Erzeugen der Schneidklemmverbindung. Dies kann zu Fehlkontaktierungen führen. Such an electric coil is previously known from US-A-4,721,935. Before the coil wire is shorn off by an insulation displacement contact, the coil wire is clamped in a clamping slot. The excess residual length of the coil wire is not supported during shearing. Also, US-A-5 225 801 discloses an electrical coil in which a coil wire is clamped in a holder prior to shearing. A support of the remaining length of the coil wire is not carried out here on an extending in the plane of the slot bottom of the bracket exposed stage. From FR-A-2 517 105 another electric coil is known in which the coil wire is placed on the holder, joined by the insulation displacement contact in the slot shallow depth and contacted by removing the insulating wire sheath. A disadvantage of this known embodiment, the lack of support of the coil wire before generating the insulation displacement connection. This can lead to faulty contacts.

Vorteile der ErfindungAdvantages of the invention

Die erfindungsgemäße elektrische Spule mit den Merkmalen des Patentanspruchs 1 hat demgegenüber den Vorteil, daß auf einfache Weise mittels der Stufe an der Halterung ein Auflager für den Spulendraht geschaffen wird, auf welchem dieser abgeschert werden kann. Auf diese Weise können der Spulendrahtanfang und nach dem Fertigstellen der elektrischen Wicklung das Spulendrahtende am Spulenkörper festgelegt werden. Anfang und Ende des Spulendrahtes bleiben auf diese Weise bis zum Erzeugen der Schneidklemmverbindung in ihrer Lage gesichert. Fehlerhafte Kontaktierungen werden somit vermieden.The electric coil according to the invention with the features of claim 1 has the advantage that in a simple way by means of the step on the support a support for the coil wire is created, on which this can be sheared off . In this way, the coil wire start and after the completion of the electrical winding, the coil wire end can be fixed to the bobbin. The beginning and end of the coil wire remain secured in this way until the insulation displacement connection is produced. Faulty contacts are thus avoided.

Zeichnungdrawing

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung vereinfacht dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur 1 einen Längsschnitt einer elektrischen Spule mit endseitig an Halterungen des Spulenkörpers geklemmten Spulendrähten, Figur 2 eine Ansicht in Richtung des Pfeiles II in Figur 1 auf eine Halterung mit dem Spulendrahtanfang, Figur 3 eine Ansicht in Richtung des Pfeiles III in Figur 1 auf eine Halterung mit dem Spulendrahtende und Figur 4 einen Schnitt entlang der Linie IV-IV in Figur 1 durch eine Halterung mit geklemmtem Spulendraht vor Erzeugung einer Schneidklemmverbindung, in größerem Maßstab.An embodiment of the invention is shown in simplified form in the drawing and explained in more detail in the following description. 2 shows a view in the direction of arrow II in Figure 1 on a holder with the coil wire start, Figure 3 is a view in the direction of arrow III in Figure 1 on a holder with the coil wire end and Figure 4 is a section along the line IV-IV in Figure 1 by a holder with clamped coil wire before generating a insulation displacement connection, on a larger scale.

Beschreibung des AusführungsbeispielsDescription of the embodiment

Eine mit 10 bezeichnete elektrische Spule für ein nicht dargestelltes Magnetventil weist einen Spulenkörper 11 sowie eine elektrische Wicklung 12 auf (Figur 1). Der als Spritzgußformteil aus Kunststoff gefertigte Spulenkörper 11 ist aus einer Hülse 13 sowie zwei stirnseitig mit dieser verbundenen Flanschen 14 und 15 aufgebaut. An den Flansch 14 sind auf der hülsenabgewandten Seite zwei bezüglich der Spulenkörper-Längsachse diametral angeordnete Halterungen 16 und 17 für Spulendraht 18 angeformt.An electric coil designated by 10 for a non-illustrated solenoid valve has a bobbin 11 and an electrical winding 12 (Figure 1). The bobbin 11 made of plastic as an injection molded part is constructed from a sleeve 13 and two flanges 14 and 15 connected to the end face thereof. To the flange 14 on the side facing away from the sleeve two with respect to the bobbin longitudinal axis diametrically arranged brackets 16 and 17 are formed for coil wire 18.

Jede der beiden zapfenförmig vom Flansch 14 aufragenden Halterungen 16 und 17 sind mit zwei sich kreuzenden Schlitzen 21 und 22 unterschiedlicher Tiefe versehen (Figuren 2 bis 4). Ein Schlitz 21 geringer Tiefe erstreckt sich bezüglich der Spulenkörper-Längsachse radial verlaufend in einer Achsebene. Der Schlitz 21 durchgreift die jeweilige Halterung 16 beziehungsweise 17 in voller Breite. Ein Schlitz 22 größerer Tiefe kreuzt parallel zur Spulenkörper-Längsachse verlaufend den Schlitz 21 im rechten Winkel. Der Schlitz 22 ist den Abmessungen eines zungenförmigen Schneidklemmkontakts 23 zur Kontaktierung des Spulendrahtes 18 in der jeweiligen Halterung 16 beziehungsweise 17 angepaßt.Each of the two pin-shaped from the flange 14 upstanding brackets 16 and 17 are provided with two intersecting slots 21 and 22 of different depth (Figures 2 to 4). A slot 21 shallow depth extends radially with respect to the bobbin longitudinal axis in an axial plane. The slot 21 passes through the respective holder 16 or 17 in full width. A slot 22 of greater depth crosses parallel to the bobbin longitudinal axis extending the slot 21 at right angles. The slot 22 is adapted to the dimensions of a tongue-shaped insulation displacement contact 23 for contacting the coil wire 18 in the respective holder 16 and 17, respectively.

Der Schlitz 21 geringer Tiefe geht von der flanschabgewandten Stirnseite der jeweiligen Halterung 16 beziehungsweise 17 mit einer keilförmigen Aufweitung 24 aus (Figur 4). Daran schließt sich ein Abschnitt 25 des Schlitzes 21 an, welcher eine größere Breite als der Durchmesser des Spulendrahts 18 hat. Daran anschließend geht der Schlitz 21 im Bereich seines Grundes in einen Abschnitt 26 mit einer Breite über, welche kleiner ist als der Durchmesser des Spulendrahts 18. Am Grund des Schlitzes 21 endet der Abschnitt 26 an einem als Amboß 27 bezeichneten Steg, welcher den Schlitz 22 größerer Tiefe kreuzend in dessen Längsrichtung verläuft. Schließlich sind die beiden Halterungen 16 und 17 radial einwärts mit einer freiliegenden Stufe 28 versehen, welche in der Ebene des vom Schlitz 21 geringer Tiefe gebildeten Grundes verläuft.The slot 21 shallow depth is from the flanschabgewandten end face of the respective holder 16 and 17 with a wedge-shaped widening 24 (Figure 4). This is followed by a portion 25 of the slot 21, which has a greater width than the diameter of the coil wire 18. Thereafter, the slot 21 goes in the region of its bottom in a section 26 with a width which is smaller than the diameter of the coil wire 18. At the bottom of the slot 21, the portion 26 terminates at a designated as anvil 27 web, which the slot 22nd crossing greater depth in the longitudinal direction. Finally, the two brackets 16 and 17 are provided radially inwardly with an exposed step 28 which extends in the plane of the bottom formed by the slot 21 low depth.

Zum Fertigen der elektrischen Wicklung 12 der Spule 10 wird der Anfang des Spulendrahts 18 in den Schlitz 21 geringer Tiefe der Halterung 16 eingeführt und im Abschnitt 26 eingeklemmt (Figur 2). Anschließend wird die Wicklung 12 erzeugt. Daraufhin wird das Ende des Spulendrahts 18 im Schlitz 21 der Halterung 17 auf gleiche Weise wie bei der Halterung 16 befestigt (Figur 3). Die überschüssige Restlänge des Spulendrahtanfangs und des Spulendrahtendes wird mit einem nicht dargestellten Schneidwerkzeug abgetrennt, wobei die Stufe 28 der beiden Halterungen 16 und 17 als Auflager für den Spulendraht 18 dient. Danach werden zur Kontaktierung des Spulendrahts 18 die zungenförmigen Schneidklemmkontakte 23 in die Schlitze 22 größerer Tiefe der beiden Halterungen 16 und 17 eingeführt (Figur 4). Zwei am Schneidklemmkontakt 23 ausgebildete Schenkel 29 scheren dabei die Isolation des auf dem Amboß 27 aufliegenden Spulendrahts 18 ab und kontaktieren den elektrischen Leiter des Spulendrahts.For the manufacture of the electrical winding 12 of the coil 10, the beginning of the coil wire 18 is inserted into the slot 21 of shallow depth of the holder 16 and clamped in the section 26 (Figure 2). Subsequently, the winding 12th generated. Thereafter, the end of the coil wire 18 is secured in the slot 21 of the holder 17 in the same manner as in the holder 16 (Figure 3). The excess residual length of the coil wire start and the coil wire end is separated with a cutting tool, not shown, wherein the step 28 of the two brackets 16 and 17 serves as a support for the coil wire 18. Thereafter, the tongue-shaped insulation displacement contacts 23 are inserted into the slots 22 of greater depth of the two brackets 16 and 17 for contacting the coil wire 18 (Figure 4). Two legs 29 formed on the insulation displacement contact 23 thereby shear the insulation of the coil wire 18 resting on the anvil 27 and contact the electrical conductor of the coil wire.

Claims (1)

  1. Electrical coil (10), in particular for solenoid valves, having a coil former (11), at least one end-side flange (14) of the coil former (11), at least one holder (16) for coil wire (18) on the end-side flange (14) and a tongue-shaped insulation displacement contact (23) for the purpose of making contact with the coil wire (18) in the holder (16), which has two intersecting slots (21, 22) of different depths, the coil wire (18) lying on the base of the slot (21) having a small depth, while the tongue-shaped insulation displacement contact (23) is accommodated in the slot (22) having a greater depth, and in the case of which the slot (21) having a small depth has a width in the region of its base which is less than the diameter of the coil wire (18), characterized in that the holder (16) has an exposed step (28), which extends in the plane of the slot base and on which the coil wire (18) is supported when excess residual length is sheared off.
EP00993854A 2000-03-24 2000-12-06 Electrical coil, in particular for solenoid valves Expired - Lifetime EP1269490B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10014738A DE10014738A1 (en) 2000-03-24 2000-03-24 Electrical coil, especially for solenoid valve, has holder with different depth crossing slots; wire is placed in shallower slot narrower at bottom than wire diameter
DE10014738 2000-03-24
PCT/DE2000/004343 WO2001073799A1 (en) 2000-03-24 2000-12-06 Electrical coil, in particular for solenoid valves

Publications (2)

Publication Number Publication Date
EP1269490A1 EP1269490A1 (en) 2003-01-02
EP1269490B1 true EP1269490B1 (en) 2006-05-03

Family

ID=7636247

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00993854A Expired - Lifetime EP1269490B1 (en) 2000-03-24 2000-12-06 Electrical coil, in particular for solenoid valves

Country Status (7)

Country Link
US (1) US6847281B2 (en)
EP (1) EP1269490B1 (en)
JP (1) JP4800546B2 (en)
KR (1) KR100756593B1 (en)
DE (2) DE10014738A1 (en)
TW (1) TW504718B (en)
WO (1) WO2001073799A1 (en)

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Publication number Priority date Publication date Assignee Title
JP4301047B2 (en) * 2004-03-18 2009-07-22 株式会社デンソー COIL DEVICE, COIL DEVICE MANUFACTURING METHOD, AND FUEL INJECTION VALVE
DE102004051331A1 (en) * 2004-10-21 2006-05-11 Hydac Electronic Gmbh actuator
JP2008004906A (en) * 2006-06-20 2008-01-10 Taiyo Yuden Co Ltd Radial-lead type inductor
DE102007039344A1 (en) * 2007-08-21 2009-02-26 Robert Bosch Gmbh Method and arrangement for winding a winding wire onto a winding body and associated magnet assembly for a solenoid valve
DE102009029298A1 (en) * 2009-09-09 2011-03-10 Robert Bosch Gmbh Winding body for a magnetic assembly of a solenoid valve and method for winding a winding wire on a winding body
DE102012106863B4 (en) 2012-07-27 2025-01-02 Svm Schultz Verwaltungs-Gmbh & Co. Kg Coil with holding element and electrical connector
DE102016107818B4 (en) 2016-04-27 2018-01-25 Sma Solar Technology Ag Throttling arrangement with an insert
JP6917156B2 (en) * 2017-02-17 2021-08-11 日立Astemo上田株式会社 Coil assembly and brake control
DE202020001160U1 (en) 2020-03-16 2020-04-16 Michael Dienst Electrical coil former for lifting machines
WO2022258636A1 (en) * 2021-06-09 2022-12-15 Valeo Systemes De Controle Moteur Assembly with a bobbin and a coil for an electromagnetic actuator
DE102022116095A1 (en) 2022-06-28 2023-12-28 Sysko AG Systeme & Komponenten Driver coil device

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DE2004344A1 (en) * 1970-01-30 1971-08-19 Siemens Ag Winding flange
IT1071827B (en) * 1976-11-09 1985-04-10 Indesit HORIZONTAL DEFLECTION TRANSFORMER
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Also Published As

Publication number Publication date
US6847281B2 (en) 2005-01-25
KR100756593B1 (en) 2007-09-10
EP1269490A1 (en) 2003-01-02
DE50012705D1 (en) 2006-06-08
TW504718B (en) 2002-10-01
JP2003529214A (en) 2003-09-30
DE10014738A1 (en) 2001-10-11
US20030151481A1 (en) 2003-08-14
KR20030007474A (en) 2003-01-23
JP4800546B2 (en) 2011-10-26
WO2001073799A1 (en) 2001-10-04

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