DE3412003A1 - Electrical coil, especially an ignition coil intended for the ignition system of an internal-combustion engine - Google Patents
Electrical coil, especially an ignition coil intended for the ignition system of an internal-combustion engineInfo
- Publication number
- DE3412003A1 DE3412003A1 DE19843412003 DE3412003A DE3412003A1 DE 3412003 A1 DE3412003 A1 DE 3412003A1 DE 19843412003 DE19843412003 DE 19843412003 DE 3412003 A DE3412003 A DE 3412003A DE 3412003 A1 DE3412003 A1 DE 3412003A1
- Authority
- DE
- Germany
- Prior art keywords
- coil
- ignition
- air gap
- combustion engine
- intended
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/12—Ignition, e.g. for IC engines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
- H01F3/14—Constrictions; Gaps, e.g. air-gaps
Abstract
Description
Elektrische Spule, insbesondere für die ZündanlageElectric coil, especially for the ignition system
einer Brennkraftmaschine bestimmte Zündspule Stand der Technik Die Erfindung geht aus von einer elektrischen Spule nach dem Oberbegriff des Hauptanspruches. Es ist nach der 1. ADDITION 66 586 der FR-PS 10 58 103) bereits eine in dieser Richtung liegende Spule bekannt, bei der jedoch andere Blechlamellen erforderlich sind, wenn auf den Dauermagneten verzichtet und der dafür vorgesehene Luftspalt verringert werden soll. Für andere Blechlamellen sind auch andere Schnittwerkzeuge zu ihrer Herstellung notwendig, weshalb der Übergang auf eine andere Luftspaltgröße sehr kostspielig ausfällt.an internal combustion engine specific ignition coil prior art The invention is based on an electrical coil according to the preamble of the main claim. According to the 1st ADDITION 66 586 of FR-PS 10 58 103) it is already one in this direction lying coil known, in which, however, other sheet metal lamellas are required if dispensed with the permanent magnet and reduced the air gap provided for it shall be. Other cutting tools are also available for other sheet metal lamellas Production necessary, which is why the transition to a different air gap size is very important turns out to be costly.
Vorteile der Erfindung Bei der erfindungsgemäßen Spule wird durch Anwendung der kennzeichnenden Maßnahme des Hauptanspruches der vorerwähnte Nachteil in befriedigendem Maß vermieden.Advantages of the Invention In the coil according to the invention is through Application of the characterizing measure of the main claim the aforementioned disadvantage avoided to a satisfactory extent.
In den Unteransprüchen sind vorteilhafte Maßnahmen für die Realisierung der Erfindung angegeben.The subclaims contain advantageous measures for implementation specified of the invention.
Zeichnung Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur 1 die Vorderansicht einer elektrischen Spule im Teilschnitt und Figur 2 die Draufsicht auf diese Spule.Drawing An embodiment of the invention is shown in the drawing shown and explained in more detail in the following description. It show figure 1 shows the front view of an electrical coil in partial section and FIG. 2 shows the plan view on this spool.
Beschreibung des Ausführungsbeispieles Die gezeigte elektrische Spule soll im bevorzugten Fall die zu der Zündanlage einer Brennkraftmaschine gehörende Zündspule sein. Diese Spule hat einen Eisenkern 1, der aus zwei E-förmigen Eisenkernabschnitten 2, 3 besteht.Description of the exemplary embodiment The electrical coil shown should in the preferred case belong to the ignition system of an internal combustion engine Be ignition coil. This coil has an iron core 1, which consists of two E-shaped iron core sections 2, 3 consists.
Die beiden Eisenkernabschnitte 2, 3 stoßen mit den Stirnseiten ihrer Außenschenkel aneinander, so daß sich dort geringfügige Luftspalte 4, 5 ergeben. Die Mittelschenkel der Eisenkernabschnitte 2, 3 tragen eine Primärwicklung 6 sowie eine konzentrisch darauf sitzende Sekundärwicklung 7 und schließen zwischen ihren Stirnseiten einen Luftspalt 8 ein. Der Luftspalt 8 soll herkömmlich für einen zur Vormagnetisierung dienenden Dauermagneten bestimmt gewesen sein, der sich aber jetzt durch andere Anforderungen an die Spule erübrigt. Um die gleichen Blechlamellen bei weiterhin guten Wirkungsgrad verwenden zu können, wird der Luftspalt 8 zumindest teilweise mit kunststoffgebundenem Eisenpulver 9 ausgefüllt. Im bevorzugten Fall soll das kunststoffgebundene Eisenpulver 1 in Plättchenform Anwendung finden. Die Plättchen 10, von denen im Beispielsfall 4 in dem Luftspalt 8 übereinander liegen, soll wenigstens nahezu so groß wie der Kernquerschnitt am Luftspalt 8 sein.The two iron core sections 2, 3 butt with the end faces of their Outer legs to one another, so that there are slight air gaps 4, 5. The middle legs of the iron core sections 2, 3 carry a primary winding 6 as well a concentrically seated secondary winding 7 and close between their End faces an air gap 8. The air gap 8 is conventional for one to Bias permanent magnets were intended to be used, but they are now made unnecessary by other requirements on the coil. To the same sheet metal lamellas to be able to use with continued good efficiency, the air gap 8 is at least partially filled with plastic-bound iron powder 9. In the preferred case the plastic-bound iron powder 1 is to be used in platelet form. the Platelets 10, of which in the example 4 lie one above the other in the air gap 8, should be at least almost as large as the core cross-section at the air gap 8.
Wendet man das kunststoffgebundene Eisenpulver 9 in Form elastischer Plättchen 10 an, so kann man in vorteilhafter Weise damit zusätzlich mechanische Schwingungen dämpfen.If you apply the plastic-bound iron powder 9 in the form of elastic Plate 10, so you can use it in an advantageous manner in addition mechanical Dampen vibrations.
Die Anwendung des kunststoffgebundenen Eisenpulvers 9 ist selbstverständlich nicht auf das Ausfüllen solcher Luftspalte beschränkt, die vorher zur Aufnahme der Vormagnetisierung dienenden Dauermagneten bestimmt waren.The use of the plastic-bound iron powder 9 is self-evident not limited to the filling of such air gaps that were previously used to accommodate the Pre-magnetization permanent magnets were intended.
So könnte beispielsweise das kunststoffgebundene Eisenpulver 9 auch dann Anwendung finden, wenn im Beispielsfall die Fensterhöhe h vergrößert, der Eisenkern 1 aber ansonsten seine magnetischen Werte im wesentlichen behalten soll. In diesem Fall wäre dann nicht nur der Luftspalt 8, sondern auch die Luftspalte 4, 5 mit kunststoffgebundenem Eisenpulver 9 auszufüllen.For example, the plastic-bound iron powder 9 could also then find use if in the example the window height h increases, the iron core 1 but otherwise should essentially retain its magnetic values. In this The case would then not only be the air gap 8, but also the air gaps 4, 5 with a plastic-bonded one Fill in iron powder 9.
Schließlich kann man durch Variieren der Fläche bzw. der Dicke bzw. der Zusammensetzung bzw. der Unterbringung der Plättchen 10 - in Bezug auf die Hystereseschleife -den Induktionsverlauf über der Feldstärke beeinflussen.Finally, by varying the area or the thickness or the composition or the placement of the platelets 10 - in relation to the hysteresis loop -influence the induction curve over the field strength.
Das kunststoffgebundene Eisenpulver 9 kann ein Körper aus einem Gemisch von Reineisen-Pulver und einem Kunstharz als Bindemittel sein, wobei ein duroplastisches Polyester-oder Phenolharz in flüssiger Form mit 5 bis 95 Gewichtsprozent Eisenpulver gemischt, die so hergestellte Masse in eine geheizte Preßform gefüllt und dann mit einem Druck von 20Q bis 2.000 bar gepreßt wird.The plastic-bonded iron powder 9 can be a body made of a mixture of pure iron powder and a synthetic resin as a binder, with a thermoset Polyester or phenolic resin in liquid form with 5 to 95 percent by weight iron powder mixed, filled the mass thus produced in a heated mold and then with a pressure of 20Q to 2,000 bar is pressed.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843412003 DE3412003A1 (en) | 1984-03-31 | 1984-03-31 | Electrical coil, especially an ignition coil intended for the ignition system of an internal-combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843412003 DE3412003A1 (en) | 1984-03-31 | 1984-03-31 | Electrical coil, especially an ignition coil intended for the ignition system of an internal-combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3412003A1 true DE3412003A1 (en) | 1985-10-10 |
Family
ID=6232194
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19843412003 Ceased DE3412003A1 (en) | 1984-03-31 | 1984-03-31 | Electrical coil, especially an ignition coil intended for the ignition system of an internal-combustion engine |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3412003A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2740259A1 (en) * | 1995-10-24 | 1997-04-25 | Thomson Csf | MIXED MAGNETIC CORE |
GB2360975A (en) * | 2000-04-03 | 2001-10-10 | Abb Ab | A magnetic product |
EP1194936A1 (en) * | 1999-05-26 | 2002-04-10 | Abb Ab | Induction devices with distributed air gaps |
WO2013060649A1 (en) * | 2011-10-25 | 2013-05-02 | Epcos Ag | Electronic component for guiding a magnetic field |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1058103A (en) * | 1952-06-07 | 1954-03-15 | App Marchal Soc D Expl Const D | Transformer called ignition <<coil>> |
DE1701262U (en) * | 1954-03-09 | 1955-06-23 | Siemens Ag | COIL OR TRANSFER CORE. |
DE1733400U (en) * | 1956-03-08 | 1956-11-08 | Standard Elektrik Ag | TRANSFER CORE WITH AIR GAP. |
DE1782796U (en) * | 1958-05-08 | 1959-02-12 | Bbc Brown Boveri & Cie | CUTTING TAPE CORE WITH MAGNETIC FILLING MATERIAL AT THE INTERFACES. |
DE1255990B (en) * | 1959-03-13 | 1967-12-07 | Max Baermann | Ignition coil for generating electrical sparks and switching with such a coil |
DE7228105U (en) * | 1974-01-10 | Siemens Ag | Iron core with air gap | |
DE3040368A1 (en) * | 1980-10-25 | 1982-05-27 | Vogt Gmbh & Co Kg, 8391 Erlau | Ferromagnetic core with filled air gap - uses lower permeability compacted iron powder in gaps of ferromagnetic cores |
DE8230848U1 (en) * | 1982-11-04 | 1984-04-12 | Robert Bosch Gmbh, 7000 Stuttgart | IGNITION COIL, INCLUDING THE IGNITION SYSTEM OF AN INTERNAL COMBUSTION ENGINE |
-
1984
- 1984-03-31 DE DE19843412003 patent/DE3412003A1/en not_active Ceased
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7228105U (en) * | 1974-01-10 | Siemens Ag | Iron core with air gap | |
FR1058103A (en) * | 1952-06-07 | 1954-03-15 | App Marchal Soc D Expl Const D | Transformer called ignition <<coil>> |
DE1701262U (en) * | 1954-03-09 | 1955-06-23 | Siemens Ag | COIL OR TRANSFER CORE. |
DE1733400U (en) * | 1956-03-08 | 1956-11-08 | Standard Elektrik Ag | TRANSFER CORE WITH AIR GAP. |
DE1782796U (en) * | 1958-05-08 | 1959-02-12 | Bbc Brown Boveri & Cie | CUTTING TAPE CORE WITH MAGNETIC FILLING MATERIAL AT THE INTERFACES. |
DE1255990B (en) * | 1959-03-13 | 1967-12-07 | Max Baermann | Ignition coil for generating electrical sparks and switching with such a coil |
DE3040368A1 (en) * | 1980-10-25 | 1982-05-27 | Vogt Gmbh & Co Kg, 8391 Erlau | Ferromagnetic core with filled air gap - uses lower permeability compacted iron powder in gaps of ferromagnetic cores |
DE8230848U1 (en) * | 1982-11-04 | 1984-04-12 | Robert Bosch Gmbh, 7000 Stuttgart | IGNITION COIL, INCLUDING THE IGNITION SYSTEM OF AN INTERNAL COMBUSTION ENGINE |
Non-Patent Citations (1)
Title |
---|
DE 21g, 31/02 S 23706 vom 6.8.53 (veröffentlichte Patentanmeldung * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2740259A1 (en) * | 1995-10-24 | 1997-04-25 | Thomson Csf | MIXED MAGNETIC CORE |
EP0771011A1 (en) * | 1995-10-24 | 1997-05-02 | Thomson-Csf | Mixed magnetic core |
US5748013A (en) * | 1995-10-24 | 1998-05-05 | Thomson-Csf | Combined magnetic core |
EP1194936A1 (en) * | 1999-05-26 | 2002-04-10 | Abb Ab | Induction devices with distributed air gaps |
GB2360975A (en) * | 2000-04-03 | 2001-10-10 | Abb Ab | A magnetic product |
WO2013060649A1 (en) * | 2011-10-25 | 2013-05-02 | Epcos Ag | Electronic component for guiding a magnetic field |
US9934900B2 (en) | 2011-10-25 | 2018-04-03 | Epcos Ag | Electronic component for guiding a magnetic field |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8120 | Willingness to grant licences paragraph 23 | ||
8131 | Rejection |