WO1999001917A1 - Dispositif de protection contre les surtensions pour appareils electriques/electroniques - Google Patents

Dispositif de protection contre les surtensions pour appareils electriques/electroniques Download PDF

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Publication number
WO1999001917A1
WO1999001917A1 PCT/IL1998/000309 IL9800309W WO9901917A1 WO 1999001917 A1 WO1999001917 A1 WO 1999001917A1 IL 9800309 W IL9800309 W IL 9800309W WO 9901917 A1 WO9901917 A1 WO 9901917A1
Authority
WO
WIPO (PCT)
Prior art keywords
jack
ground
cable
overvoltage protection
coupling means
Prior art date
Application number
PCT/IL1998/000309
Other languages
English (en)
Inventor
Benzi Shemesh
Oved Tal
Original Assignee
Girit Communication Engineering Ltd.
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 Girit Communication Engineering Ltd. filed Critical Girit Communication Engineering Ltd.
Priority to AU79298/98A priority Critical patent/AU7929898A/en
Publication of WO1999001917A1 publication Critical patent/WO1999001917A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/02—Cables with twisted pairs or quads
    • H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
    • H01B11/10—Screens specially adapted for reducing interference from external sources
    • H01B11/1091—Screens specially adapted for reducing interference from external sources with screen grounding means, e.g. drain wires
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
    • H01B9/028—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients with screen grounding means, e.g. drain wires
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H02H9/044—Physical layout, materials not provided for elsewhere

Definitions

  • the present invention relates to the protection of electric apparatus, computers, telephones, etc. from random overvoltages appearing on a data or power line coupled thereto.
  • the invention relates to a device for preventing damage to a group of electronic appliances from overvoltages induced by lightning.
  • Electronic circuits and devices are l iown which are capable of protecting electronic appliances from random voltages exceeding predetermined nominal magnitudes. Such protecting devices may be installed inside the electronic appliance, or built-in as an integral module within an electrical plug or socket for use therewith. Another l ⁇ iown type of the protection device is manufactured as a discrete module which may be installed in an office or other building for local protection of electronic appliances from sudden outages and overvoltages, etc.
  • Another object of the invention is to provide a system for overvoltage protection of a group of such appliances located close to one another.
  • a modular overvoltage protection device for protecting at least one electric or electronic appliance from a voltage surge, the device comprising an overvoltage protection module for connecting in-line to a connection cable of the device and having a ground coupling means for coupling to ground.
  • connection cable may be provided at opposite ends thereof with a plug and socket, respectively, connected to phase, neutral and ground conductors for connecting via the plug to respective phase, neutral and ground feeders of an electrical supply, said ground coupling means being coupled to the ground conductor.
  • connection cable may comprise two portions, - the first portion intended for connecting the overvoltage protection module to electrical supply and including the phase, neutral and ground conductors,
  • the second portion including the phase and neutral conductors only, being intended for connecting said overvoltage protecting module to an electric appliance, said ground coupling means being electrically connected to the ground conductor of the first portion of the connector cable.
  • the ground coupling means may include at least one jack connector accessible from an exterior of the device. If desired, at least two jack connectors may be provided each being accessible from an exterior of the device and being electrically coupled to said ground conductor. This permits a first device described above, having a ground point and being connected to a ground conductor of the connecting cable, to be coupled to an electrical supply having a ground feeder, and one or more other devices to be mutually interconnected thereto such, that the ground points of all devices are commonly connected to the ground feeder coupled to the first device.
  • each of the jack connectors of the first device comprises, a jack socket.
  • the connection cable may be either a cable of an electric appliance including a phase conductor and a neutral conductor only, or a data cable of an electronic appliance including data-in and data-out conductors
  • the ground coupling means may include at least one jack connector accessible from an exterior of the device for electrically coupling to the ground conductor of the first device.
  • a data cable may be a telephone cable having tip and ring conductors, a computer cable, or the like.
  • the connection cable of the described type may be provided with a plug and socket at opposite ends thereof, respectively. However, the opposite ends of the cable may be equipped by two respective plugs or two respective sockets.
  • the jack connector of such other device is formed as a jack pin.
  • it may comprise a socket shaped identically to that of said first device, said two sockets being interconnectable with one another by an electrically conductive connecting pin having two contact ends snap-fittingly insertable into said respective sockets.
  • a first such cable thus includes a ground conductor for connecting to the ground feeder of a supply line and including at least one ground jack socket electrically connected to the ground conductor and being accessible from an exterior of the overvoltage protection device, said ground jack socket being adapted for connecting thereto either a jack pin of a mating device, or a connecting pin.
  • Said connecting pin being an electrically conductive structure having at least two contact ends snap- fittingly connectable to said respective sockets.
  • a second such cable has no ground conductor and is usually intended for connection to a low-current line.
  • the device in such a cable is usually provided with at least one jack pin for coupling to the grounded jack socket of a mating device, both the jack pin and socket being accessible from an exterior of the respective devices.
  • said second cable may be provided with at least one jack socket shaped identically to that of said first cable, accessible from the exterior of the protective device and intended for coupling to the grounded jack socket of said first cable or to the jack pin of another second cable.
  • said respective sockets of the first and second cables are interconnectable with one another by an electrically conductive connecting pin having two contact ends snap-fittingly insertable to said respective jack sockets.
  • the second type cable may constitute a connection cable of an electric appliance having only a phase and a neutral conductors; in another embodiment it may be a cable for connecting a telephone extension unit or a computer modem to a telephone socket.
  • the second type cable may constitute a computer data communication line (screened or unscreened) with two or more channels.
  • an overvoltage protection system comprising a first and a second said modular overvoltage protection devices, each comprising an overvoltage protection module for connecting in-line to a respective connection cable and having a ground coupling means for coupling to ground; the ground coupling means of said first protection device being electrically coupled to a ground conductor of the respective connection cable, while the ground coupling means of said second protection device being mechanically and electrically coupled to the ground coupling means of said first protection device.
  • the overvoltage protection system may comprise at least one first type cable and at least one second type cable mutually interconnected via respective jack connectors thereof.
  • the system may include, inter alia, a number of auxiliary cables intended for telephone lines, or a set of cables required for a number of computers, and many other variations.
  • jack connectors are in the form of jack sockets, and the system additionally comprises a set of connecting conductive elements each having at least two contact pins snap-fittingly connectable to said jack sockets.
  • the system is effective for electronic appliances located in one room, especially where electric sockets of these appliances are positioned in close proximity to one another.
  • the device, the cables and the system are adapted for protecting electronic appliances from overvoltages induced by a lightning.
  • Figs, la, lb and lc show respectively pictorial, schematic and functional representations of an in-line cable protection device according to a first embodiment of the invention
  • Figs. 2a, 2b and 2c show respectively pictorial, schematic and functional representations of an in-line cable protection device according to a second embodiment of the invention
  • Figs. 3a, 3b and 3c show respectively pictorial, schematic and functional representations of an in-line cable protection device according to a third embodiment of the invention
  • Figs. 4a, 4b and 4c show respectively pictorial, schematic and functional representations of an in-line cable protection device according to a fourth embodiment of the invention.
  • Figs. 5a and 5b show respectively schematic and functional representations of a pair of mutually connected in-line cable protection devices
  • Figs. 6a and 6b show respectively schematic and functional represen- tations of three mutually connected in-line cable protection devices
  • Figs. 7a and 7b show respectively schematic and functional representations of four mutually connected in-line cable protection devices.
  • Figs, la and lb show pictorially and schematically, respectively, a modular overvoltage device depicted generally as 10 for protecting at least one electronic appliance (not shown) from a voltage surge.
  • the device 10 comprises a cable 11 having at opposite ends thereof a respective plug 12 and socket 14 for connecting to an electrical supply feeder.
  • the cable 11 has integral therewith an in-line overvoltage protection module 16 having a jack socket 18 (constituting a ground coupling means) for coupling to ground.
  • Fig. lc is a block-diagram of the cable 11 including the in-line protection module 16 being an overvoltage protection circuit 20.
  • the overvoltage protection circuit 20 is grounded via a ground conductor 21 which is itself connected to the jack socket 18.
  • Figs. 2a to 2c illustrates a cable 22 according to a second embodiment having an in-line protection module 16.
  • the cable 22 differs from the cable 11 of the first embodiment 10 in that the protection module 16 includes an additional jack socket 18a being electrically connected to the ground conductor 21 of the cable 22.
  • the additional jack socket 18a may be replaced by a jack pin.
  • Figs. 3a, 3b and 3c show respectively pictorial, schematic and functional representations of a cable 24 having an integral in-line overvoltage protection module 30 according to a third embodiment of the invention.
  • the module 30 has a jack pin 32 (constituting a ground coupling means) for coupling to ground.
  • the jack pin 32 comprises a conductive core.
  • Fig. 3b is a schematic representation of the cable 24, and Fig. 3c shows its block-diagram, where LI and L2 are a pair of low-current telephone wires.
  • the cable 24 is provided with two plugs 26 and 28 at its two ends. It should be noted, that the cable may be screened or unscreened, and that it may comprise more lines; a conductor of the cable screen may also be connected to a respective protection circuit.
  • the overvoltage protective module 30 includes an overvoltage protection circuit 34, and the jack pin 32 is shown as an ungrounded lead of the overvoltage protection circuit 34.
  • the cable 24 may be any other suitable low-current line as well, such as a computer data transmitting line as will be shown in the following drawings.
  • Figs. 4a, 4b and 4c show respectively pictorial, schematic and functional representations of a cable 36 having an integral in-line protection module 30 according to a fourth embodiment of the invention.
  • the cable 36 differs from the embodiment shown in Figs. 3a to 3c of the drawings in that the overvoltage protection module 30 further includes an additional jack socket 38 which is dimensioned for accommodating the jack pin 32 of a mating module.
  • the overvoltage protection module 30 further includes an additional jack socket 38 which is dimensioned for accommodating the jack pin 32 of a mating module.
  • FIG. 5a and 5b show respectively schematic and functional representations of a compound overvoltage protection system 50 having a first in-line cable protection device 10 coupled to a second in-line cable protection device 40 being a computer data transmitting line.
  • the cable 40 is schematically shown as having a transmitting channel L3 and a receiving channel L4.
  • the data transmitting cable may comprise a much more complicated system of channels.
  • the interconnection between the cables 10 and 40 is accomplished by a mechanical/electrical coupling between the ground jack socket 18 of the cable 10 and a jack pin 42 of the cable 40.
  • a protective circuit 44 integral with the cable 40 becomes grounded through the protective ground conductor PG, thus providing overvoltage protection to the data transmitting line of a computer (not shown) coupled to the cable 40.
  • a jack socket instead of the jack pin 42.
  • Such an ungrounded jack socket can be shaped identically to the jack socket 18.
  • a connecting conductive pin (not shown) would be required which has two contact ends snap-fittingly engageable with the grounded jack socket 18 of the cable 10, and the jack socket of the cable 40, respectively.
  • Figs. 6a and 6b show respectively schematic and functional representations of a compound overvoltage protection system 60 having three mutually connected devices 22, 24 and 40 containing integral in-line protection modules 16, 30 and 46, respectively.
  • the overvoltage protective devices 34 and 44 are commonly grounded through the ground conductor PG of the device 22 via respective ground jack sockets 18 and 18a coupled to corresponding jack pins 42 and 32 of the respective modules 46 and 30.
  • the jack pins may be formed of a plastic material strengthened by an inner axial reinforcing conductive core.
  • Figs. 7a and 7b show respectively schematic and functional representations of a compound overvoltage protection system 70 having four mutually connected devices 22, 24, 36 and 40 containing integral in-line protection modules 16, 30, 30a and 46, respectively.
  • the overvoltage protective circuits 34a and 44 are commonly grounded through the ground conductor PG of the device 20 via respective ground jack sockets 18 and 18a of the device 20 which are coupled to corresponding jack pins 42 and 32 of the respective circuits 44 and 34a.
  • the overvoltage protective circuits 34 is commonly grounded through the ground conductor PG of the module 16 via the ground jack socket 18 of the module 16 which is coupled to the jack pin 32 of the module 30a.
  • each one of the described overvoltage protection modules such as 16, 30 and 46 may additionally comprise an interference suppressor filter.
  • Such a filter can be adjusted to a specific range of frequencies from which an appropriate appliance should be protected.
  • any number of cables having in-line integral overvoltage protection devices may be mutually interconnected. It will further be understood that the invention contemplates both the separate use of the modular protection devices as described as well as their in-line connection to a cable having integral overvoltage protection.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

L'invention porte sur un dispositif modulaire de protection (10, 40, 50, 60) contre les surtensions qui permet de protéger au moins un appareil électrique ou électronique d'une surcharge de tension. Ce dispositif comprend un module de protection contre les surtensions (16, 30, 30a, 46) se raccordant en ligne à un câble de raccordement (11, 22, 24, 26). Le module possède une prise de terre (18, 18a, 32, 38, 42) se présentant sous la forme d'une prise péritel ou d'une fiche mâle se raccordant à la terre.
PCT/IL1998/000309 1997-07-04 1998-07-02 Dispositif de protection contre les surtensions pour appareils electriques/electroniques WO1999001917A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU79298/98A AU7929898A (en) 1997-07-04 1998-07-02 Overvoltage protection device for electric/electronic appliances

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL12123397A IL121233A0 (en) 1997-07-04 1997-07-04 Device for protecting electric and electronic appliances from overvoltages
IL121233 1997-07-04

Publications (1)

Publication Number Publication Date
WO1999001917A1 true WO1999001917A1 (fr) 1999-01-14

Family

ID=11070342

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL1998/000309 WO1999001917A1 (fr) 1997-07-04 1998-07-02 Dispositif de protection contre les surtensions pour appareils electriques/electroniques

Country Status (3)

Country Link
AU (1) AU7929898A (fr)
IL (1) IL121233A0 (fr)
WO (1) WO1999001917A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1321425C (zh) * 2003-07-10 2007-06-13 发那科株式会社 反射型电涌抑制电缆
EP2774239A4 (fr) * 2011-10-31 2015-07-15 Bosch Automotive Service Solutions Llc Dispositif et procédé permettant une protection contre une tension excessive et/ou un courant excessif dans des systèmes qui comprennent des connexions usb
EP2385531B2 (fr) † 2010-05-05 2019-01-30 Grundfos Management a/s Câble d'alimentation avec ntc thermistance intégré

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2195038A1 (fr) * 1972-07-27 1974-03-01 Pirelli
DE3513230A1 (de) * 1985-04-13 1986-10-16 Kathrein-Werke Kg, 8200 Rosenheim Ueberspannungsschutzgeraet

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2195038A1 (fr) * 1972-07-27 1974-03-01 Pirelli
DE3513230A1 (de) * 1985-04-13 1986-10-16 Kathrein-Werke Kg, 8200 Rosenheim Ueberspannungsschutzgeraet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1321425C (zh) * 2003-07-10 2007-06-13 发那科株式会社 反射型电涌抑制电缆
EP2385531B2 (fr) † 2010-05-05 2019-01-30 Grundfos Management a/s Câble d'alimentation avec ntc thermistance intégré
EP2774239A4 (fr) * 2011-10-31 2015-07-15 Bosch Automotive Service Solutions Llc Dispositif et procédé permettant une protection contre une tension excessive et/ou un courant excessif dans des systèmes qui comprennent des connexions usb

Also Published As

Publication number Publication date
AU7929898A (en) 1999-01-25
IL121233A0 (en) 1998-01-04

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