DE19803109A1 - Inductive coupling arrangement for wireless transmission of switching state of switch to central unit - Google Patents

Inductive coupling arrangement for wireless transmission of switching state of switch to central unit

Info

Publication number
DE19803109A1
DE19803109A1 DE1998103109 DE19803109A DE19803109A1 DE 19803109 A1 DE19803109 A1 DE 19803109A1 DE 1998103109 DE1998103109 DE 1998103109 DE 19803109 A DE19803109 A DE 19803109A DE 19803109 A1 DE19803109 A1 DE 19803109A1
Authority
DE
Germany
Prior art keywords
switch
central unit
wireless transmission
switching state
coupling arrangement
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.)
Withdrawn
Application number
DE1998103109
Other languages
German (de)
Inventor
Hans-Peter Adler
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE1998103109 priority Critical patent/DE19803109A1/en
Priority to DE29817797U priority patent/DE29817797U1/en
Publication of DE19803109A1 publication Critical patent/DE19803109A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • H01H9/167—Circuits for remote indication

Abstract

The coupling arrangement requires connecting the switch (3) via a two-wire cable to a transformer consisting of an inductance and a resistance. A conventional inductive proximity switch (4) is mounted in the central unit relative to the movable unit. A number of supply voltages (a.c. or d.c.) and a number of switching modes can be selected from for use in the central unit.

Description

Es ist üblich, über induktive Koppler (Transformatoren) Energie und Informationen drahtlos zu übertragen. Häufig wird bei energielosen Einheiten die Energie induktiv zugeführt und die Information z. B. optisch ausgekoppelt.It is common to wirelessly transmit energy and information via inductive couplers (transformers) transfer. Often, the energy is supplied inductively in the case of energy-free units and the information, for B. optically decoupled.

Bekannt ist auch der Einsatz von induktiven Näherungsschaltern zur Erkennung von Metallteilen. Das Schaltverhalten dieser induktiven Sensoren wird üblicherweise durch das Verstimmen oder Bedämpfen eines Schwingkreises durch sich annähernde Metallteile (Induzieren von Wirbelstömen) bewirkt.The use of inductive proximity switches for the detection of metal parts is also known. The Switching behavior of these inductive sensors is usually determined by detuning or damping of an oscillating circuit caused by approaching metal parts (inducing eddy currents).

Das Ziel der Erfindung war es, eine einfache und preiswerte Alternative zur parallelen Energie- und Informationsübertragung zu finden. Hierbei war zu berücksichtigen, daß sich zwischen dem Schalter und dem Ort der induktiven Kopplung ein geometrischer Abstand befindet. Die Kopplung der beweglichen Einheit an der Zentraleinheit kann über einen Luftspalt von einigen Millimetern erfolgen. Erfindungsgemäß wird das Problem dadurch gelöst, daß innerhalb der beweglichen (abnehmbaren) Einheit eine Spule (1) mit Ferritschalenkern über einen Widerstand (2) mit dem davon entfernten Schalter (3) (z. B. Reedschalter/Dauermagnet) verbunden ist. Gegenüber dieser Spule (1) ist in der Zentraleinheit ein handelsüblicher induktiver Näherungsschalter (4) untergebracht. Dieser Sensor (4) induziert ständig in der Spule (2) eine Spannung. Bei geschlossenem Schalter (3) fließt über den Widerstand (2) ein Strom (es wird elektrische Energie in Wärme umgesetzt), der Schwingkreis im induktiven Sensor (4) wird bedämpft, was den Schaltvorgang auslöst.The aim of the invention was to find a simple and inexpensive alternative to the parallel transmission of energy and information. It had to be taken into account here that there is a geometric distance between the switch and the location of the inductive coupling. The mobile unit can be coupled to the central unit via an air gap of a few millimeters. According to the invention, the problem is solved in that a coil ( 1 ) with a ferrite shell core is connected via a resistor ( 2 ) to the switch ( 3 ) (z. B. reed switch / permanent magnet) removed therefrom within the movable (removable) unit. Opposite this coil ( 1 ), a commercially available inductive proximity switch ( 4 ) is housed in the central unit. This sensor ( 4 ) constantly induces a voltage in the coil ( 2 ). When the switch ( 3 ) is closed, a current flows through the resistor ( 2 ) (electrical energy is converted into heat), the resonant circuit in the inductive sensor ( 4 ) is damped, which triggers the switching process.

Die mit der Erfindung erzielten Vorteile bestehen darin, daß Energie- und Informationsfluß über dieselben Bauelemente realisiert werden. Der Einsatz handelsüblicher induktiver Sensoren auf der Seite der Zentraleinheit ermöglicht die Auswahl einer Vielzahl von Versorgungsspannungen (AC/DC) und Schaltmodi (Öffner/Schließer).The advantages achieved with the invention are that energy and information flow over them Components can be realized. The use of commercially available inductive sensors on the side of the Central unit enables the selection of a variety of supply voltages (AC / DC) and Switching modes (normally closed / normally open).

Claims (2)

1. Drahtlose Übertragung des Schaltzustandes eines galvanischen Schalters, der in einer beweglichen Einheit (ohne eigene elektrische Energie) unter Distanz zu einer Zentraleinheit (mit elektrischer Energie) untergebracht ist, dadurch gekennzeichnet, daß dieser Schalter über eine Zweidrahtleitung mit einem Übertrager (bestehend aus Induktivität und Widerstand) verbunden ist.1. Wireless transmission of the switching state of a galvanic switch, which is housed in a movable unit (without its own electrical energy) at a distance from a central unit (with electrical energy), characterized in that this switch via a two-wire line with a transformer (consisting of inductance and resistance) is connected. 2. Drahtlose Übertragung des Schaltzustandes eines galvanischen Schalters nach Patentanspruch 1, dadurch gekennzeichnet, daß gegenüber dem in der beweglichen Einheit untergebrachten Übertrager in der Zentraleinheit ein handelsüblicher induktiver Näherungsschalter eingesetzt ist.2. Wireless transmission of the switching state of a galvanic switch according to claim 1, characterized, that compared to the transmitter housed in the mobile unit in the central unit commercial inductive proximity switch is used.
DE1998103109 1998-01-28 1998-01-28 Inductive coupling arrangement for wireless transmission of switching state of switch to central unit Withdrawn DE19803109A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE1998103109 DE19803109A1 (en) 1998-01-28 1998-01-28 Inductive coupling arrangement for wireless transmission of switching state of switch to central unit
DE29817797U DE29817797U1 (en) 1998-01-28 1998-01-28 Inductive coupling of the switching state of a switch without auxiliary energy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1998103109 DE19803109A1 (en) 1998-01-28 1998-01-28 Inductive coupling arrangement for wireless transmission of switching state of switch to central unit

Publications (1)

Publication Number Publication Date
DE19803109A1 true DE19803109A1 (en) 1998-07-23

Family

ID=7855832

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1998103109 Withdrawn DE19803109A1 (en) 1998-01-28 1998-01-28 Inductive coupling arrangement for wireless transmission of switching state of switch to central unit

Country Status (1)

Country Link
DE (1) DE19803109A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006045181A1 (en) * 2006-09-25 2008-04-03 Siemens Ag Wireless switching and input device
CN111937110A (en) * 2018-01-31 2020-11-13 通用电器技术有限公司 Switching device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4316792C1 (en) * 1993-05-19 1994-06-09 Efe Elektronik Forschungs Und Contacts interrogation circuit for position of moving parts of doors, gates or windows - has capacitor inserted in series between monitored contacts and associated transformer winding
DE4413020A1 (en) * 1994-04-18 1995-10-19 Turck Werner Kg Determining operating distance for calibrating capacitive or inductive proximity switch
DE29600540U1 (en) * 1996-01-05 1996-03-07 Siemens Ag Signaling switch for an electrical high-voltage switch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4316792C1 (en) * 1993-05-19 1994-06-09 Efe Elektronik Forschungs Und Contacts interrogation circuit for position of moving parts of doors, gates or windows - has capacitor inserted in series between monitored contacts and associated transformer winding
DE4413020A1 (en) * 1994-04-18 1995-10-19 Turck Werner Kg Determining operating distance for calibrating capacitive or inductive proximity switch
DE29600540U1 (en) * 1996-01-05 1996-03-07 Siemens Ag Signaling switch for an electrical high-voltage switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006045181A1 (en) * 2006-09-25 2008-04-03 Siemens Ag Wireless switching and input device
CN111937110A (en) * 2018-01-31 2020-11-13 通用电器技术有限公司 Switching device

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Legal Events

Date Code Title Description
OAV Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1
OP8 Request for examination as to paragraph 44 patent law
OR8 Request for search as to paragraph 43 lit. 1 sentence 1 patent law
8122 Nonbinding interest in granting licenses declared
8105 Search report available
8130 Withdrawal