CH329222A - Interference filter - Google Patents

Interference filter

Info

Publication number
CH329222A
CH329222A CH329222DA CH329222A CH 329222 A CH329222 A CH 329222A CH 329222D A CH329222D A CH 329222DA CH 329222 A CH329222 A CH 329222A
Authority
CH
Switzerland
Prior art keywords
filter
housing
interference filter
filter according
coils
Prior art date
Application number
Other languages
French (fr)
Inventor
R Vogel Paul
Original Assignee
Paul Vogel & Cie
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 Paul Vogel & Cie filed Critical Paul Vogel & Cie
Publication of CH329222A publication Critical patent/CH329222A/en

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00Screening of apparatus or components against electric or magnetic fields
    • H05K9/0066Constructional details of transient suppressor

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Filters And Equalizers (AREA)

Description

  

   <Desc/Clms Page number 1> 
    Filtre      antiparasites   La présente invention a pour objet un filtre antiparasites. Ce filtre est caractérisé par le fait que son boîtier est blindé. 



  Le dessin    annexé   représente, à titre d'exemple, une forme d'exécution ,de l'objet de l'invention. 



  La    fig.   1 est une vue en perspective du filtre. La    fig.   2 est une coupe du boîtier du filtre ; et, la    fig.   3 représente le schéma électrique de ce filtre. 



  Le filtre représenté comprend deux conducteurs principaux 1 et 2 portant chacun une cosse d'entrée 3, et une cosse de sortie 4. Deux bobines 5, avec noyaux, de même que deux bobines 6, sans fer, sont montées chacune en série sur les conducteurs 1 et 2 respectivement. Ces deux conducteurs sont    court-      circuités   par deux condensateurs 8 montés en série. Leur point commun 9 est relié par un condensateur 10 à la masse du boîtier désignée par 11. 



  Les différents organes de ce filtre, à l'exception des extrémités des conducteurs 1 et 2 portant les cosses sont enfermés dans un boîtier cubique comprenant une enveloppe extérieure 12 en bakélite, une enveloppe intermédiaire métallique 13    constituant   l'a    masse   du boîtier à laquelle est relié le condensateur 10, et une enveloppe intérieure 1.4, isolante, en matière plastique par exemple. L'enveloppe métallique 13 est reliée à une barrette métallique 15 destinée à être    fixée   à la masse de l'appareil sur lequel est monté le filtre. 



  L'expérience a montré que, grâce au blindage que constitue l'enveloppe métallique 13 du boîtier, et grâce à l'emploi des bobines sans fer 6, le filtre atteint une haute efficacité tout en étant de dimensions très    réduites.   C'est ainsi que le boîtier du filtre représenté est un cube d'environ 25    rnm   d'arête.



   <Desc / Clms Page number 1>
    Interference filter The present invention relates to a interference filter. This filter is characterized by the fact that its housing is shielded.



  The appended drawing represents, by way of example, an embodiment of the subject of the invention.



  Fig. 1 is a perspective view of the filter. Fig. 2 is a section through the filter housing; and, FIG. 3 shows the electrical diagram of this filter.



  The filter shown comprises two main conductors 1 and 2 each carrying an input terminal 3, and an output terminal 4. Two coils 5, with cores, as well as two coils 6, without iron, are each mounted in series on the conductors 1 and 2 respectively. These two conductors are short-circuited by two capacitors 8 connected in series. Their common point 9 is connected by a capacitor 10 to the mass of the case designated by 11.



  The various members of this filter, with the exception of the ends of the conductors 1 and 2 carrying the lugs are enclosed in a cubic box comprising an outer shell 12 in bakelite, an intermediate metal shell 13 constituting the mass of the box to which is connected the capacitor 10, and an inner envelope 1.4, insulating, in plastic for example. The metal casing 13 is connected to a metal bar 15 intended to be fixed to the ground of the device on which the filter is mounted.



  Experience has shown that, thanks to the shielding formed by the metal casing 13 of the housing, and thanks to the use of iron-free coils 6, the filter achieves high efficiency while being of very small dimensions. Thus, the filter housing shown is a cube of about 25 mm edge.

 

Claims (1)

REVENDICATION Filtre antiparasites, caractérisé par le fait que son boîtier est blindé. SOUS-REVENDICATIONS 1. Filtre suivant la revendication, caractérisé par le fait que son boîtier comprend une enveloppe métallique. 2. Filtre suivant la revendication, caractérisé par le fait que son boîtier, en matière synthétique, est doublé intérieurement de métal. 3. Filtre suivant la revendication, caractérisé par le fait qu'il comprend deux bobines sans fer, montées chacune en série sur le circuit reliant chaque borne d'entrée à chaque borne de sortie du filtre. CLAIM Anti-interference filter, characterized by the fact that its housing is shielded. SUB-CLAIMS 1. Filter according to claim, characterized in that its housing comprises a metal casing. 2. Filter according to claim, characterized in that its housing, made of synthetic material, is internally lined with metal. 3. Filter according to claim, characterized in that it comprises two coils without iron, each mounted in series on the circuit connecting each input terminal to each output terminal of the filter.
CH329222D 1955-11-29 1955-11-29 Interference filter CH329222A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH329222T 1955-11-29

Publications (1)

Publication Number Publication Date
CH329222A true CH329222A (en) 1958-04-15

Family

ID=4501248

Family Applications (1)

Application Number Title Priority Date Filing Date
CH329222D CH329222A (en) 1955-11-29 1955-11-29 Interference filter

Country Status (1)

Country Link
CH (1) CH329222A (en)

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