EP0447753B1 - Diviseur de tension - Google Patents

Diviseur de tension Download PDF

Info

Publication number
EP0447753B1
EP0447753B1 EP91100714A EP91100714A EP0447753B1 EP 0447753 B1 EP0447753 B1 EP 0447753B1 EP 91100714 A EP91100714 A EP 91100714A EP 91100714 A EP91100714 A EP 91100714A EP 0447753 B1 EP0447753 B1 EP 0447753B1
Authority
EP
European Patent Office
Prior art keywords
path
contact
voltage divider
resistance
accordance
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 - Lifetime
Application number
EP91100714A
Other languages
German (de)
English (en)
Other versions
EP0447753A1 (fr
Inventor
Joachim Dipl.-Ing. Borst
Armin Dipl.-Phys. Sauter
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.)
Rafi GmbH and Co KG
Rafi GmbH and Co Elektrotechnische Spezialfabrik
Original Assignee
Rafi GmbH and Co KG
Rafi GmbH and Co Elektrotechnische Spezialfabrik
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 Rafi GmbH and Co KG, Rafi GmbH and Co Elektrotechnische Spezialfabrik filed Critical Rafi GmbH and Co KG
Publication of EP0447753A1 publication Critical patent/EP0447753A1/fr
Application granted granted Critical
Publication of EP0447753B1 publication Critical patent/EP0447753B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H01C10/14—Adjustable resistors adjustable by auxiliary driving means

Definitions

  • the invention relates to a voltage divider with a resistance track applied to a base plate and an adjustable connection interacting with it.
  • the adjustable connection is formed by resilient brushes which rest directly on the resistance track and are mechanically adjusted to change the potential difference.
  • the resistive track is applied from a thin substrate, e.g. B. evaporated, resistance layer, it can be worn and damaged by frequent adjustment of the sliding contact, so that the life and the resilience of such a voltage divider is not particularly large.
  • Another disadvantage is that the known voltage divider build large and can not or can only be carried out in a watertight design through considerable construction.
  • the object of the invention is therefore to design a voltage divider of the type mentioned in such a way that it is not only very small in height, but can also be made watertight without difficulty. Above all, however, it should be avoided that an adjustable link must be guided over the resistance path when the voltage difference is to be changed, and that this is worn or damaged as a result.
  • the construction effort, through which this can be achieved, should be kept low, nevertheless a safe function with high accuracy and a long service life should be guaranteed.
  • the contact track is attached to an intermediate plate in the region of an elastically deformable zone provided therein, and the adjustable connection designed as a pressure piece is slidably guided along the contact track on the side of the intermediate plate opposite the contact track.
  • the contact track can be provided with a connecting conductor track, but it is also possible to have these two on both sides of the resistance track on the base plate Assign attached contact rails, each of which is provided with a connecting conductor track.
  • the connecting conductor tracks attached to the two ends of the resistance track should expediently be arranged parallel to one another on one side of the base plate, the connecting track tracks of the contact rails being arranged parallel to the connecting conductor tracks of the resistance track on the same side of the base plate.
  • a particularly flat and inexpensive embodiment can be achieved if the base plate, the intermediate plate and / or the cover plate carrying the pressure piece are made of an electrical insulating film or a printed circuit board material.
  • a voltage divider according to the invention is formed in which a contact track interacts with the resistance track and is applied to it by a displaceable pressure piece as an adjustable connection, it is not only possible to make the voltage divider compact and, in an economical manner, also very flat, e.g. B. from film or plastic parts, but this can also be carried out waterproof.
  • the range of use of such a variable resistor is thus expanded to a considerable extent.
  • the voltage divider shown in Figures 1 and 3 and designated 1 and 1 ' consists essentially of a base plate 2 with an applied on this resistor track 3 and a vertically above this spaced contact track 11, which is formed by a pressure piece 22 adjustable connection 21 can be applied to the resistance track 3.
  • the contact track 11 is attached to an intermediate plate 6, which is arranged by means of a spacer 8, which is provided with a corresponding rectangular recess 9, at a distance from the resistance track 3 and has an elastically deformable zone 7 between them, on which the contact track 11 is attached.
  • the pressure piece 22 is guided in a slot-like recess 20 of a cover plate 17, which means Spacer plates 18 and 19 is attached to the intermediate plate 6. Since the base plate 2 and the intermediate plate 6 can be made of an electrical insulating film or printed circuit board material and can be connected to one another in a liquid-tight manner, a compact and flat design is provided, moreover the voltage divider 1 or 1 'is liquid-tight, since between the resistance track 3 and the Contact path 11 no liquid can get.
  • the resistance track 3 is equipped at each end with a connecting conductor track 4 and 5, which are arranged together on one side of the base plate 2.
  • the contact track 11 also has a connecting conductor track 12, which is attached on the side opposite the connecting conductor tracks 4 and 5.
  • two contact rails 13 and 15 are mounted laterally next to the resistance track 3 parallel to this on the base plate 2, which with parallel to the connecting conductor tracks 4 and 5 of the resistance track 3 connecting conductor tracks 14 and 16 are provided.
  • the pressure piece 22 forming the adjustable connection 21 has a protruding projection 23 or 23 'and is guided by means of lateral guide pieces 24 between the spacer plates 18 and 19 and the intermediate plate 6 and the cover plate 17.
  • the contact path 11 acts in the region of the approach 23 'in each case as a bridge through which the resistance track 11 with the two contact rails 13 and 15 is electrically connected.
  • a voltage difference corresponding to the respective resistance value of the resistance path 3 is present between it and the negative pole of the voltage source.
  • the pressure piece 22 is adjusted, it is not guided over the resistance track 11, but over the side of the contact track 11 facing away from it, so that resting components abut one another and no wear on the resistance track 3 can occur due to adjustment movements of the pressure piece 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Adjustable Resistors (AREA)

Claims (7)

  1. Diviseur de tension (1) comprenant une piste de résistance électrique (3) prévue sur une plaque de base (2) de même qu'un branchement réglable (21) collaborant avec celle-ci, une piste de contact (11) étant disposée verticalement au-dessus et à une certaine distance de la piste de résistance électrique (3) et le branchement réglable (21) étant conçu sous forme d'une pièce de pression (22) guidée le long de la piste de contact (11) et qui permet de faire communiquer la piste de contact (11) avec la piste de résistance électrique (3),
    caractérisé en ce que
    la piste de résistance électrique (3) soit munie à chaque extrémité d'une piste de connexion (4, 5), que la piste de contact (11) soit appliquée sur une plaque intermédiaire (6) au niveau d'une zone élastique (7) prévue sur celle-ci, et que le branchement réglable (21) soit guidé sur la face de la plaque intermédiaire (6) opposée à la piste de contact (11).
  2. Diviseur de tension d'après la revendication 1,
    caractérisé en ce que
    la pièce de pression (22) agissant sur la piste de contact (11) soit conçue sous forme d'un élément coulissant guidé dans un évidement (20) en forme de fente, prévu dans une plaque de recouvrement (17), dans un boîtier ou un organe semblable disposé au-dessus de la plaque de recouvrement (6).
  3. Diviseur de tension d'après la revendication 1 ou 2,
    caractérisé en ce que
    la piste de contact (11) soit munie d'une piste de connexion (12).
  4. Diviseur de tension d'après la revendication 1 ou 2,
    caractérisé en ce
    qu'il soit assigné à la piste de contact (11) deux glissières de contact (13; 15) disposées de part et d'autre de la piste de résistance électrique (3) sur la plaque de base (2) et munies respectivement d'une piste de connexion (14; 16).
  5. Diviseur de tension d'après une ou plusieurs des revendications 1 à 4,
    caractérisé en ce que
    les pistes de connexion (4, 5) prévues aux deux extrémités de la piste de résistance électrique (3) soient disposées parallèlement et sur un côté de la plaque de base (2).
  6. Diviseur de tension d'après la revendication 4 ou 5,
    caractérisé en ce que
    les pistes de connexion (14; 16) des glissières de contact (13; 15) soient disposées parallèlement aux pistes de connexion (4, 5) de la piste de résistance électrique (3) et sur le même côté de la plaque de base (2).
  7. Diviseur de tension d'après une ou plusieurs des revendications 1 à 6,
    caractérisé en ce que
    la plaque de base (2), la plaque intermédiaire (6) et/ou éventuellement la plaque de recouvrement (17) portant la pièce de pression (22) soient conçues en feuille destinée à isoler l'électricité, ou en matériau pour cartes imprimées.
EP91100714A 1990-03-19 1991-01-22 Diviseur de tension Expired - Lifetime EP0447753B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4008807 1990-03-19
DE4008807A DE4008807A1 (de) 1990-03-19 1990-03-19 Spannungsteiler

Publications (2)

Publication Number Publication Date
EP0447753A1 EP0447753A1 (fr) 1991-09-25
EP0447753B1 true EP0447753B1 (fr) 1995-04-12

Family

ID=6402568

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91100714A Expired - Lifetime EP0447753B1 (fr) 1990-03-19 1991-01-22 Diviseur de tension

Country Status (2)

Country Link
EP (1) EP0447753B1 (fr)
DE (2) DE4008807A1 (fr)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2072675A5 (fr) * 1970-11-30 1971-09-24 Lamare Raymond

Also Published As

Publication number Publication date
DE59105137D1 (de) 1995-05-18
EP0447753A1 (fr) 1991-09-25
DE4008807A1 (de) 1991-09-26

Similar Documents

Publication Publication Date Title
DE3624883C2 (fr)
DE1801315A1 (de) Mehrteiliger elektrischer Widerstandsregler
EP0447753B1 (fr) Diviseur de tension
DE2248029A1 (de) Traeger fuer die beweglichen kontakte eines schaltgeraetes
DE2625726C3 (de) Elektronische Kleinuhr
DE3718543C1 (de) Zeichenkopf
DE3039614C2 (fr)
DE3624166A1 (de) Folienschaltung
DE2154896A1 (de) Veränderbarer elektrischer Widerstand
DE3125543A1 (de) Stellvorrichtung fuer durch drehbar gelagerte raedchen jeweils einstellbare elektrische bauteile, z. b. ohmsche widerstaende
DE2555110C3 (de) Kraftfahrzeug-Zündanlaßschalter mit zentralem Mittelkontakt, einem Überbrückungselement und zwei Kontaktbrücken
DE2534126A1 (de) Leiterplatte mit einer gedruckten schaltung
DE7019783U (de) Mehrfach-schiebewiderstand
DE2334491A1 (de) Veraenderlicher linearer widerstand
DE3421846C2 (fr)
DE1930558C (de) Kleinschalter
DE2539581C2 (de) Schalteranordnung
EP1154442A2 (fr) Résistance variable et diviseur de tension comportant celle-ci, circuit imprimé et appareil dentaire
DE2415519C2 (de) Schalter zur Einstellung von Leistungsstufen
DE1952319C3 (de) Einstellbarer Widerstand
DE2516874C3 (de) Schiebepotentiometer
DE2061591A1 (de) Drehschalter mit Drucktastenschalter, insbesondere für Kraftfahrzeuge
DE2358259C3 (de) Rechen- oder Tabellenschieber
DE3230282A1 (de) Elektrisches geraet mit einem gehaeuse und einem die gehaeusewand durchsetzenden schiebeschalter
DE2124696A1 (de) Schaltungseinrichtung mit verander lichem und/oder festem Widerstand und Herstellungsverfahren hierfür

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE FR GB IT LI SE

17P Request for examination filed

Effective date: 19920117

17Q First examination report despatched

Effective date: 19940121

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI SE

REF Corresponds to:

Ref document number: 59105137

Country of ref document: DE

Date of ref document: 19950518

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950515

ITF It: translation for a ep patent filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19950712

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20001102

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20001116

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20010316

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20010418

Year of fee payment: 11

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020122

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020131

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020801

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20020122

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020930

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050122