DE676494C - Device for interference suppression of radio sets in motor vehicles - Google Patents

Device for interference suppression of radio sets in motor vehicles

Info

Publication number
DE676494C
DE676494C DEB171201D DEB0171201D DE676494C DE 676494 C DE676494 C DE 676494C DE B171201 D DEB171201 D DE B171201D DE B0171201 D DEB0171201 D DE B0171201D DE 676494 C DE676494 C DE 676494C
Authority
DE
Germany
Prior art keywords
interference suppression
motor vehicles
ignition coil
radio sets
ground
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
Application number
DEB171201D
Other languages
German (de)
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
Priority to DEB171201D priority Critical patent/DE676494C/en
Application granted granted Critical
Publication of DE676494C publication Critical patent/DE676494C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
    • H04B15/025—Reducing interference from ignition apparatus of fuel engines

Description

Einrichtung zum Entstören von: Radioapparaten in Kraftfahrzeugen 'In Kraftfahrzeugen dienen bekanntlich die Metallteile der Karosserie und des Fahrgestells ,als Masserückleitung für die zum Betrieb des Fahrzeugs erforderlichen elektrischen Maschinen und Apparate, insbesondere jauch für die Zündanlage. Wenn nun in einem Kraftfahrzeug ein Radioapparat betrieb-en wird, so muß eine Übertragung der Störungen durch die Zündanlage in das Innere des Wageres bzw. auf die Antenne des Radioapparates verhindert werden. - Nun :sind ,aber in Kraftfahrzeugen, welche mit deiner Batteriezündanl.age ausgerüstet sind, die Zündspule und der im Primärstromkreis zwischen' Primärstromzuleitung zur Zündspüle und Masse liegende, zur Verhinderung der Leitungsübertragung der Störfrequenzen dienernde Entstörkondens.ator meist an der Spritzwand der Kraftfahrzeuge befestigt; damit sie nicht den hohen Temperaturen, über dem Motor ausgesetzt sind. In diesem Fall fließen die hochfrequenten Störströme über die Spritzwand zum Motor zurück und können -auf diesem Wege .auch leicht den Innenraum des Wagens verseuchen.Device for interference suppression of: radio sets in motor vehicles' In It is known that motor vehicles are used for the metal parts of the body and the chassis , as a ground return line for the electrical components required to operate the vehicle Machines and apparatus, in particular liquid for the ignition system. If now in a If the motor vehicle is operated with a radio, the interference must be transmitted through the ignition system into the interior of the car or onto the antenna of the radio set be prevented. - Well: are, but in vehicles that have your battery ignition system are equipped, the ignition coil and in the primary circuit between 'primary power supply to the ignition coil and ground, to prevent the transmission of lines of the interference frequencies Serving Entstörkondens.ator mostly attached to the bulkhead of the motor vehicle; so that they are not exposed to the high temperatures above the engine. In this In this case, the high-frequency interference currents flow back to the engine via the bulkhead and can easily contaminate the interior of the car in this way.

Gemäß der Erfindung wird dies dadurch vermieden, daß insbesondere der im Primärstromkreis zwischen Primärstromzuleitung zur Zündspule und Masse liegende Entstörkondeusator isoliert von den Metallbeilen des Fahrgestells und der Karosserie ;aufgehängt und seine Masserückleitung möglichst nahe an den Zündkerze mit Masse verbunden ist. Zweckmäßig wird .auch die Zündspule im Fahrzeug isoliert ä.ufgehängt.According to the invention this is avoided in that in particular the one in the primary circuit between the primary current lead to the ignition coil and ground Interference suppressor isolated from the metal axes of the chassis and body ; suspended and its ground return as close as possible to the spark plug with ground connected is. The ignition coil is expediently suspended in the vehicle in an insulated manner.

In der Abbildung ist .ein Ausführungsbeispiel des Erfindungsgegenstandes dargestellt. Es bedeutet a die Spritzwand des Kraftfahrzeugs, .durch welche der Motor vom Wageninnenraum getrennt ist. Hier ist die Zündspule b und - der im Primärkreis -der Zündspule liegende Entstörkondensator c isoliert befestigt. Zur Isolierung dient beispielsweise eine Platte d aus einem beliebigen Isolierstoff. Durch eine gemeinsame Masseleitung, die ;aus einer blanken Kupferschiene e besteht, sind Entstörkondensator und Zündspule in. diesem Fall mit .dem Motorblock f leitaend verbunden. Dadurch werden die durch den Entstörkondensator aufgenommenen Störfrequenzen so abgeleitet, daß sie den Empfang im Radiogerät nicht beeinträchtigen können.In the figure is .an embodiment of the subject of the invention shown. It means a the bulkhead of the motor vehicle, through which the Engine is separated from the vehicle interior. Here is the ignition coil b and - the one in the primary circuit -the ignition coil lying suppression capacitor c attached insulated. For isolation For example, a plate d made of any insulating material is used. By a Common ground line, which consists of a bare copper bar e, is an interference suppression capacitor and ignition coil, in this case conductively connected to the engine block f. Through this the interference frequencies picked up by the interference suppression capacitor are derived in such a way that that they cannot impair reception in the radio device.

Claims (1)

PATENTANSPRÜCHE: i. Einrichtung zur Entstörung von Radioapparaten in Kraftfahrzeugen mit Bätteriezündanlage -und in deren Primärstromkreis zwischen Primärstromzuleitung zur Zündspule -und Masse nicht unmittelbar am Motoreingebautem Entstörköndensator; dadurch gekennzeichnet, :daß dieser Entstörkondensator isoliert von den Metallteilen des Fahrgestells und .der Karosserie ,aufgehängt und seine Masserückleitung möglichst nahe an. den Zündkerzen mit Mass: verbunden ist. z. Einrichtung nach Anspruch i, dadurch gekennzeichnet, daß auch die Zündspule isoliert aufgehängt ist. 3. Einrichtung nach Anspruch i und a, dadurch gekennzeichnet, daß die Masserückleitung mit dem Motorblock verbunden ist.PATENT CLAIMS: i. Device for interference suppression of radio sets in motor vehicles with battery ignition system -and in their primary circuit between Primary current feed to the ignition coil and ground not directly on the engine Suppression condenser; characterized in that: this interference suppression capacitor insulates from the metal parts of the chassis and .the body, suspended and his Ground return as close as possible. the spark plugs with Mass: is connected. z. Facility according to claim i, characterized in that the ignition coil is also suspended in an isolated manner is. 3. Device according to claim i and a, characterized in that the ground return line is connected to the engine block.
DEB171201D 1935-09-27 1935-09-27 Device for interference suppression of radio sets in motor vehicles Expired DE676494C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB171201D DE676494C (en) 1935-09-27 1935-09-27 Device for interference suppression of radio sets in motor vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB171201D DE676494C (en) 1935-09-27 1935-09-27 Device for interference suppression of radio sets in motor vehicles

Publications (1)

Publication Number Publication Date
DE676494C true DE676494C (en) 1939-06-05

Family

ID=7006717

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB171201D Expired DE676494C (en) 1935-09-27 1935-09-27 Device for interference suppression of radio sets in motor vehicles

Country Status (1)

Country Link
DE (1) DE676494C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2745061A1 (en) * 1976-10-06 1978-04-13 Honda Motor Co Ltd DEVICE FOR THE SUPPRESSION OF IGNITION FAILURES IN MOTORCYCLES

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2745061A1 (en) * 1976-10-06 1978-04-13 Honda Motor Co Ltd DEVICE FOR THE SUPPRESSION OF IGNITION FAILURES IN MOTORCYCLES

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