DE3528015A1 - COIL, ESPECIALLY FOR AN ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVE AND METHOD FOR THEIR PRODUCTION - Google Patents
COIL, ESPECIALLY FOR AN ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVE AND METHOD FOR THEIR PRODUCTIONInfo
- Publication number
- DE3528015A1 DE3528015A1 DE19853528015 DE3528015A DE3528015A1 DE 3528015 A1 DE3528015 A1 DE 3528015A1 DE 19853528015 DE19853528015 DE 19853528015 DE 3528015 A DE3528015 A DE 3528015A DE 3528015 A1 DE3528015 A1 DE 3528015A1
- Authority
- DE
- Germany
- Prior art keywords
- winding
- coil
- wire
- resistance
- bobbin
- 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- Withdrawn
Links
- 239000000446 fuel Substances 0.000 title claims description 7
- 238000000034 method Methods 0.000 title claims description 4
- 238000002347 injection Methods 0.000 title description 3
- 239000007924 injection Substances 0.000 title description 3
- 238000004519 manufacturing process Methods 0.000 title description 3
- 238000004804 winding Methods 0.000 claims description 25
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Fuel-Injection Apparatus (AREA)
- Magnetically Actuated Valves (AREA)
- Coil Winding Methods And Apparatuses (AREA)
- Electromagnets (AREA)
Description
Die Erfindung bezieht sich auf eine Spule, insbeson dere für ein elektormagnetisch betätigbares Kraftstoff einspritzventil, welche auf einem Spulenkörper eine Wicklung mit genau festgelegter Windungszahl hat. Weiterhin betrifft die Erfindung ein Verfahren zur Her stellung einer solchen Spule.The invention relates to a coil, in particular for an elector magnetically actuated fuel injection valve, which on a bobbin Winding with a precisely defined number of turns. The invention further relates to a method for the manufacture position of such a coil.
Bei Spulen kommt es vielfach darauf an, daß diese bei einem bestimmten Stromfluß eine möglichst genau fest gelegte magnetische Kraft ausüben. Da die Windungs zahl die magnetische Kraft bestimmt, ist damit festge legt, wieviele Windungen eine solche Spule haben muß, um die gewünschte Kraftwirkung aufzuweisen. Leider ist jedoch bei stets gleicher Windungszahl der ohmsche Widerstand verschiedener Spulen nicht immer gleich, weil die Drahtquerschnitte schwanken und die Drahtle gierung nicht immer völlig gleich ist. Will man bei ver schiedenen Spulen einen stets gleichen Widerstand ha ben, so muß man zwangsläufig unterschiedliche Win dungslängen und damit unterschiedliche Induktivitäten in Kauf nehmen.In the case of coils, it often depends on them a certain current flow as precisely as possible exert applied magnetic force. Because the swirl number determines the magnetic force, is fixed determines how many turns such a coil must have, to have the desired force effect. Unfortunately is however the ohmic with always the same number of turns Resistance of different coils not always the same, because the wire cross-sections fluctuate and the wire is not always the same. If you want ver different coils always have the same resistance ben, you have to inevitably different Win cable lengths and thus different inductances put up with.
Der Erfindung liegt die Aufgabe zugrunde, eine Spu le, insbesondere für ein elektromagnetisch betätigbares Kraftstoffeinspritzventil zu entwickeln, die bei stets gleichem ohmschen Widerstand eine genau festlegbare Windungszahl hat. Weiterhin soll ein Verfahren zur Herstellung einer solchen Spule entwickelt werden.The invention has for its object a Spu le, especially for an electromagnetically actuated Fuel injector to develop at all times same ohmic resistance a precisely definable Number of turns. Furthermore, a method for Production of such a coil can be developed.
Die erstgenannte Aufgabe wird erfindungsgemäß da durch gelöst, daß die Spule eine die Windungszahl be stimmende Unifilarwicklung und daran anschließend zur Erzeugung eines gewünschten ohmschen Wider standes eine Bifilarwicklung aufweist.The first-mentioned object is there according to the invention solved by that the coil be the number of turns matching unifilar development and afterwards to generate a desired ohmic counter has a bifilar winding.
Durch diese Gestaltung kann man bei einer Spule sowohl die Windungszahl als auch den ohmschen Wi derstand unabhängig voneinander sehr genau einstellen. Verschiedene Spulen haben deshalb bei gleicher Span nung einen gleichen Stromfluß und üben aufgrund der gleichen Windungszahl dabei eine völlig gleiche magne tische Kraft aus. Deshalb sind die Spulen ganz beson ders gut für elektromagnetisch betätigbare Kraftstoff einspritzventile geeignet.With this design you can use a coil both the number of turns and the ohmic Wi set the level very precisely independently of each other. Different coils therefore have the same chip equal current flow and exercise due to the same number of turns a completely identical magnet table strength. Therefore the coils are very special good for electromagnetically actuated fuel injectors suitable.
Die zweitgenannte Aufgabe wird erfindungsgemäß dadurch gelöst, daß zur Erzeugung einer gewünschten Induktivität zunächst der Wicklungsdraht unifilar auf den Spulenkörper gewickelt und anschließend der ohm sche Widerstand der Spulenwicklung einschließlich ei ner Drahtüberlänge gemessen wird, daß danach zur Er reichung eines gewünschten Gesamtwiderstandes die Drahtüberlänge aufgrund des gemessenen Wider standswertes und des spezifischen Drahtwiderstandes verkürzt und die Drahtüberlänge dann zu einer Schlaufe gelegt und als Bifilarwicklung auf die Unifilarwicklung gewickelt wird.The second object is invented solved in that to generate a desired Inductance first the winding wire unifilar the bobbin wound and then the ohm cal resistance of the coil winding including egg ner wire excess length is measured that afterwards to Er reaching a desired total resistance Excess wire length due to the measured resistance and the specific wire resistance shortened and the excess wire then into a loop placed and as a bifilar winding on the unifilar winding is wrapped.
Durch diese Verfahrensweise entsteht mit äußerst ge ringem Aufwand eine Spule, welche sowohl eine genau festlegbare Windungszahl als auch einen genau einzu haltenden ohmschen Widerstand hat.This procedure creates with extremely ge a coil, which is both an exact definable number of turns as well as one exactly holding ohmic resistance.
Die Erfindung läßt verschiedene Ausführungsformen zu. Zu ihrer weiteren Erläuterung wird nunmehr auf die Zeichnung Bezug genommen. Diese zeigt inThe invention leaves various embodiments to. For their further explanation, reference is now made to the Drawing reference. This shows in
Fig. 1 einen Längsschnitt durch ein elektromagneti sches Einspritzventil mit der erfindungsgemäßen Spule, Fig. 1 shows a longitudinal section through an electromagnetic ULTRASONIC injection valve according to the invention with the coil,
Fig. 2 eine Seitenansicht der Spule im gegenüber Fig. 1 vergrößerten Maßstab. Fig. 2 is a side view of the coil on an enlarged scale compared to Fig. 1.
Das dargestellte Kraftstoffeinspritzventil hat in ei nem Ventilgehäuse 1 einen Wickelkörper 2, auf den eine Wicklung 3 gewickelt ist. Durch den Wickelkörper 2 erstreckt sich ein mit einer Durchgangsbohrung 5 verse hener Weicheisenkern 4, der mit einem aus dem Ventil gehäuse 1 herausragenden Ende einen Einlaßstutzen 6 bildet.The fuel injector shown has a bobbin 2 in which a winding 3 is wound in a valve housing 1 . Through the winding body 2 extends with a through hole 5 verse hen soft iron core 4 , which forms an inlet port 6 with a protruding from the valve housing 1 end.
Der anderen Stirnseite des Weicheisenkerns 4 steht unter Bildung eines Luftspaltes ein Anker 7 gegenüber, der an seiner dem Weicheisenkern 4 entgegengesetzten Seite eine koaxial sich erstreckende Ventilnadel 8 be sitzt. Am unteren Ende der Ventilnadel 8 ist ein Schließ glied 9 angeordnet, welches einen Ventilauslaß 10 zu verschließen vermag.The other end of the soft iron core 4 is an armature 7 opposite to form an air gap, which sits on its opposite side of the soft iron core 4 a coaxially extending valve needle 8 be. At the lower end of the valve needle 8 , a closing member 9 is arranged, which can close a valve outlet 10 .
Eine Druckfeder 11 drückt den Anker 7 in der Zeich nung gesehen nach unten und dadurch das Schließglied 9 in Schließstellung, sobald die Wicklung 3 nicht be stromt ist. Fließt durch die Wicklung 3 Strom, dann wird der Anker 7 zum Weicheisenkern 4 hin angezogen, so daß das Schließglied 9 in die dargestellte Offenstellung gelangt.A compression spring 11 pushes the armature 7 seen in the drawing voltage down and thereby the closing member 9 in the closed position as soon as the winding 3 is not energized. If current flows through the winding 3 , the armature 7 is attracted to the soft iron core 4 , so that the closing member 9 reaches the open position shown.
Die Fig. 2 zeigt vergrößert den Spulenkörper 2, an dem zwei Kontaktfahnen 12, 13 angebracht sind. Von der Kontaktfahne 12 aus ist der elektrische Draht zur Wickelfläche der Spule geführt und dann in einem Dreh sinn, also unifilar, so lange auf die Spule gewickelt, bis daß eine Wicklung 3a mit der gewünschten Wicklungs zahl erzeugt ist. Zu erkennen ist, daß sich an diese unifi lare Wicklung 3a eine bifilare Wicklung 3b anschließt, deren Ende zur Kontaktfahne 13 geführt ist. Die bifilare Wicklung 3b ist durch eine Schlaufe gebildet, deren Län ge nach Bestimmung des ohmschen Widerstandes der unifilaren Wicklung festgelegt wird, um einen genauen ohmschen Widerstand zu erreichen. FIG. 2 shows an enlarged view of the coil former 2, on which two contact lugs 12, 13 are attached. From the contact tab 12 , the electrical wire is guided to the winding surface of the coil and then in a rotating sense, that is, unifilar, wound on the coil until a winding 3 a with the desired number of windings is generated. It can be seen that this unifi lare winding 3 a is followed by a bifilar winding 3 b, the end of which is led to the contact lug 13 . The bifilar winding 3 b is formed by a loop, the length of which is determined after determining the ohmic resistance of the unifilar winding in order to achieve an exact ohmic resistance.
Claims (2)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853528015 DE3528015A1 (en) | 1985-08-05 | 1985-08-05 | COIL, ESPECIALLY FOR AN ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVE AND METHOD FOR THEIR PRODUCTION |
EP86108867A EP0211226A1 (en) | 1985-08-05 | 1986-06-30 | Coil, particularly for an electromagnetically actuable fuel injector valve, and method of making the same |
BR8603680A BR8603680A (en) | 1985-08-05 | 1986-08-04 | COIL, OVERALL FOR AN ELECTROMAGNETICALLY ACTIONABLE FUEL INJECTION VALVE, AS A PROCESS FOR ITS MANUFACTURING |
JP61182048A JPS6235181A (en) | 1985-08-05 | 1986-08-04 | Coil and manufacture thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853528015 DE3528015A1 (en) | 1985-08-05 | 1985-08-05 | COIL, ESPECIALLY FOR AN ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVE AND METHOD FOR THEIR PRODUCTION |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3528015A1 true DE3528015A1 (en) | 1987-02-05 |
Family
ID=6277707
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19853528015 Withdrawn DE3528015A1 (en) | 1985-08-05 | 1985-08-05 | COIL, ESPECIALLY FOR AN ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVE AND METHOD FOR THEIR PRODUCTION |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0211226A1 (en) |
JP (1) | JPS6235181A (en) |
BR (1) | BR8603680A (en) |
DE (1) | DE3528015A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3840763A1 (en) * | 1987-12-14 | 1989-06-22 | Guenter Schell | Antitheft device for electronic devices, especially devices for entertainment purposes, which are installed in motor vehicles |
DE3908350A1 (en) * | 1989-03-15 | 1990-09-20 | Asea Brown Boveri | Electrical coil |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE930995C (en) * | 1952-10-18 | 1955-07-28 | Normalzeit G M B H | Coil winding for direct current electromagnets and process for their manufacture |
-
1985
- 1985-08-05 DE DE19853528015 patent/DE3528015A1/en not_active Withdrawn
-
1986
- 1986-06-30 EP EP86108867A patent/EP0211226A1/en not_active Withdrawn
- 1986-08-04 JP JP61182048A patent/JPS6235181A/en active Pending
- 1986-08-04 BR BR8603680A patent/BR8603680A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3840763A1 (en) * | 1987-12-14 | 1989-06-22 | Guenter Schell | Antitheft device for electronic devices, especially devices for entertainment purposes, which are installed in motor vehicles |
DE3908350A1 (en) * | 1989-03-15 | 1990-09-20 | Asea Brown Boveri | Electrical coil |
Also Published As
Publication number | Publication date |
---|---|
EP0211226A1 (en) | 1987-02-25 |
JPS6235181A (en) | 1987-02-16 |
BR8603680A (en) | 1987-03-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |