AT88529B - Device for protecting the high-voltage coil of ignition devices for explosion engines. - Google Patents

Device for protecting the high-voltage coil of ignition devices for explosion engines.

Info

Publication number
AT88529B
AT88529B AT88529DA AT88529B AT 88529 B AT88529 B AT 88529B AT 88529D A AT88529D A AT 88529DA AT 88529 B AT88529 B AT 88529B
Authority
AT
Austria
Prior art keywords
coil
protecting
ignition devices
voltage coil
explosion engines
Prior art date
Application number
Other languages
German (de)
Original Assignee
Scintilla Fa
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 Scintilla Fa filed Critical Scintilla Fa
Application granted granted Critical
Publication of AT88529B publication Critical patent/AT88529B/en

Links

Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 



   Die Funkenspannung an den Zündkerzen von Explosionsmotoren wird heutzutage im allgemeinen in einer die Sekundärspule eines Transformators bildenden Hochspannungsspule erzeugt, welche durch Stromstösse in einer mit Unterbrecher und Kondensator versehenen Primärspule induziert bzw. erregt wird. 



   Bekanntlich sind nun durch Schaltvorgänge, insbesondere also auch durch das Überspringen der Funken an den Zündkerzen die Endwindungen der Hochspannungsspulen besonders gefährdet, weil die Selbstinduktion das Eindringen steiler Spannungswellen in die Wicklung verhindert, so dass die Isolation der Anfangswindungen durchgeschlagen wird. Man hat deshalb zum Schutz der Spule die äusseren Windungen derselben mit Metallteilen verbunden, welche genügend Kapazität besitzen, um die auftretenden Spannungssprünge in Form von Ladungen aufzunehmen und allmählich an die zu schützende Wicklung abzugeben. Die Eigenkapazität der Metallteile muss dabei bedeutend grösser sein als diejenige der äusseren Spulenwindungslagen. 



   Gemäss der Erfindung werden diese Metallteile als mechanisch widerstandsfähiger Mantel ausgebildet, welcher die Spulen aussen umgibt und auf diese Weise gleichzeitig zum Schutz der Spule vor mechanischen Beschädigungen dient. 



   Ein Ausführungsbeispiel für den Erfindungsgegenstand ist in der Zeichnung dargestellt, in der a der Eisenkern, b die   Primär-und c   die Sekundärwicklung der Spule bedeutet. Mit der letzten   Sekundärwicklung   elektrisch verbunden ist der Schutzring d, der, um keine kurzgeschlossene Windung zu bilden, bei e geschlitzt ist. 



   Statt den   Metallbelag   aussen um die Spule herumzulegen, kann die Spule innen damit versehen werden, oder sowohl innen als auch aussen, wobei dann beide Metallbelage miteinander leitend verbunden sind. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 
 EMI1.1
 



   The spark voltage at the spark plugs of explosion engines is nowadays generally generated in a high-voltage coil which forms the secondary coil of a transformer and which is induced or excited by current surges in a primary coil provided with an interrupter and capacitor.



   It is well known that switching operations, in particular the jumping over of the sparks on the spark plugs, endanger the end turns of the high-voltage coils because the self-induction prevents steep voltage waves from penetrating the winding, so that the insulation of the initial turns is broken through. To protect the coil, the outer turns of the coil have therefore been connected to metal parts which have sufficient capacity to absorb the voltage jumps occurring in the form of charges and gradually transfer them to the winding to be protected. The intrinsic capacitance of the metal parts must be significantly greater than that of the outer coil winding layers.



   According to the invention, these metal parts are designed as a mechanically resistant jacket which surrounds the coils on the outside and in this way simultaneously serves to protect the coil from mechanical damage.



   An exemplary embodiment of the subject matter of the invention is shown in the drawing, in which a denotes the iron core, b denotes the primary and c denotes the secondary winding of the coil. The protective ring d is electrically connected to the last secondary winding and is slotted at e in order not to form a short-circuited turn.



   Instead of laying the metal coating around the outside of the coil, the coil can be provided with it on the inside, or both inside and outside, in which case the two metal coatings are conductively connected to one another.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Einrichtung zum Schutz der Hochspannungsspule von Zündapparaten für Explosionsmotoren, bestehend aus einem Metallbelag, der mit der letzten Hochspannungswindung leitend EMI1.2 Metallbelag in Form eines die Spule aussen umgebenden Mantels (d) ausgeführt ist, zum Zwecke der Spule auch einen mechanischen Schutz zu geben. EMI1.3 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Device for protecting the high-voltage coil of ignition devices for explosion engines, consisting of a metal covering that is conductive with the last high-voltage winding EMI1.2 Metal coating in the form of a jacket (d) surrounding the coil on the outside is designed to also provide mechanical protection for the coil. EMI1.3 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT88529D 1918-10-19 1919-10-17 Device for protecting the high-voltage coil of ignition devices for explosion engines. AT88529B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH88529X 1918-10-19

Publications (1)

Publication Number Publication Date
AT88529B true AT88529B (en) 1922-05-26

Family

ID=4345483

Family Applications (1)

Application Number Title Priority Date Filing Date
AT88529D AT88529B (en) 1918-10-19 1919-10-17 Device for protecting the high-voltage coil of ignition devices for explosion engines.

Country Status (1)

Country Link
AT (1) AT88529B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4496924A (en) * 1981-08-08 1985-01-29 The Marconi Company Limited Pulse transformer having conductive shield around magnetic core material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4496924A (en) * 1981-08-08 1985-01-29 The Marconi Company Limited Pulse transformer having conductive shield around magnetic core material

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