ES2918213T3 - Device to protect data lines against surges - Google Patents

Abstract

The invention relates to a device for protecting data lines from overvoltages, comprising: a lower part (1) to receive an upper part (2) having overvoltage protection parts; the upper part (2) for the connection of the complement to a lower part (1); An electronic monitoring unit (3), which detects whether a top (2) is plugged in, a corresponding signal that the monitoring unit (3) outputs in the case that a top (2) is plugged in, in the case that an upper part (2) is not connected, and in the case that at least one overvoltage protection part of the plugged upper part (2) is defective; A bus system (5) having a plurality of bus lines, which are connected to a voltage source and at least to the monitoring unit (3), a signaling unit (13) is also being connected, which indicates the signal of the monitoring unit and/or realizes the signal of the monitoring unit to a remote signaling medium, the electronic monitoring unit (3) is being arranged in a bus connector (4), which communicates with the bus system (5) and with a monitoring and evaluation unit (6), which is attached to the top (2). (Automatic translation with Google Translate, without legal value)

Description

DESCRIPTION

Device to protect data lines against surges

The invention relates to a device for protecting data lines against surges with a lower part for accepting an upper part with surge protection parts, the upper part for pluggable connection with a lower part, an electronic monitoring unit, the which senses whether a top part is plugged in, a corresponding signal being emitted by the monitoring unit in the case that a top part is plugged in, in the case that a top part is not plugged in and that it is defective at least a plugged-in top surge protection part, a bus system with several bus lines, which are connected to a voltage source and at least to the monitoring unit, in addition to which a signaling unit is connected, which displays the signal from the monitoring unit and forwards it to a remote signaling unit.

Such a device is known, for example, from EP 2745179 B1. In the case of the known device, it is seen as a disadvantage that the electronic monitoring device is arranged in the lower part, there called base element, and is correspondingly interconnected. This has the consequence that in carrying out the known embodiment, the hitherto customary lower parts cannot be used, but must be replaced by new lower parts with a monitoring device. This results in a considerable mounting cost, since a new lower part must be installed when mounting the device, which must be interconnected accordingly. Furthermore, a higher cost results from this, since the current lower parts cannot be used, but new lower parts have to be provided.

A similar device is known from EP 2922146 A1. In this case, however, components of the electronic monitoring unit are configured in the plug-in upper parts. However, it is necessary to provide new lower parts when such a device is to be assembled, since the lower parts suitable for the upper parts have a different configuration than usual lower parts, since additional plug contact elements must be provided and interconnected in each case. the lower parts, which must contact the associated upper parts.

It also follows from this that in the assembly of such a device hitherto customary lower parts can no longer be used, but new lower parts have to be installed, which in turn leads to higher assembly costs and costs.

Proceeding from this state of the art, the underlying object of the invention is to provide a device of the type according to gender, in which the hitherto usual device lower parts can still be used, also when such devices are to be equipped with a electronic monitoring device. In particular, it should be ensured that the cost of interconnection is kept low when retrofitting to electronic monitoring units, storage is minimized, since current lower parts can still be used and can also be used in new installations and thus be minimize cost.

An enrichment of the state of the art should also be achieved.

For the solution of this object, the invention proposes that the electronic monitoring unit is arranged on a bus connector, which communicates with the bus system, and a monitoring and evaluation unit, which is coupled with the upper part. .

By means of this configuration, it is not necessary for the hitherto customary lower parts to be replaced by different lower parts in the installation, but rather the previous lower parts remain in the installation. Also in the new installation, the previous lower parts can be installed, which do not comprise particular electronic monitoring units, so that in the subsequent installation the installation cost is minimized, since no new lower parts have to be installed, and in the new installation a cost advantage is achieved, since regardless of whether devices with monitoring unit or without monitoring unit have to be mounted, the same lower parts can be used which minimizes storage and thus costs.

This is achieved, since the electronic monitoring unit is arranged in an additional element, namely a bus connector, which communicates with the bus system and a monitoring and evaluation unit. This monitoring and evaluation unit is attached to the upper part. In case of retrofitting of existing devices, which have to be equipped with a corresponding monitoring unit, it is only necessary to install the bus connector with the electronic monitoring unit together with the conventional lower parts and use the corresponding new upper part, which is coupled with the monitoring and evaluation unit, this upper part being connected in the plugged-in position with these components then with the monitoring unit, which is arranged on the bus connector, and thus performs the corresponding functions.

Particularly preferably, provision is made in this case for the lower part to have several connection terminals 1 to 4 for data lines, shield connection S for an electrical shield, connection PE to ground, associated connection terminals being connected by conductors below the lower part and these conductors being in conductive connection with first connection plug contacts for the upper part, said upper part having the protection parts against overvoltages, at least one gas discharger and/or a protection diode against transient voltages, which are conductively connected to suitable second connection plug contacts, the upper part being able to be or being connected plugged to the lower part and the first and second plug contacts interfering with each other in the plug position of connection, the lower part is combined with the bus connector, which presents to bus lines that run in a plane below the bottom, which in each case end in plug socket connectors, which have a body protruding from the bus lines, in which the control unit is installed electronic monitoring, which is contacted with at least some bus lines, as well as having the connection lines contacted with the bus lines, which are contacted at plug contacts on one side of the plug, the upper part is attached wirelessly with a signal device for the upper part, which is combined with the evaluation unit, the signal device contacting or being able to contact together with the evaluation unit via connection plug contacts with the plug contacts of the bus connector , and as a voltage source a power supply can be connected in series to a device consisting of at least a bottom part and a top part, as well as a connector d e bus, which can be plugged into the bus lines of the bus system.

Because of this, simple installation and also simple retrofitting of existing systems with common lower parts is possible and feasible.

In a manner known per se, it is furthermore provided that at least the lower part can be locked into a mounting strip or, additionally, also the bus connector and/or the voltage source (power supply) and that the bus lines are driven into a slot in the mounting strip.

A preferred development can furthermore be that the upper part is permeable to light at least in one region of the arrangement of the overvoltage protection parts, preferably of the gas discharge tube, which is adapted to cover this region or this region. the electronic monitoring and evaluation unit, so that overvoltage events in the gas discharge tube can be visually captured and processed in the evaluation unit, the evaluation unit presenting an electrical optical display visible from the outside, which displays correct operation of the gas unloader and its error signal.

The electronic monitoring and evaluation unit is adapted to the upper part. This means that the two parts can form a functional unit or also a physical unit, or else they are attached to one another in a suitable way. In the adapted monitoring and evaluation unit there can be found, for example, photodiodes, which can visually detect corresponding overvoltage events of the gas discharge tube. These can be captured and evaluated in the electronic evaluation unit and used to activate a screen. For example, the evaluation unit can have an externally visible electrical-optical display, which in the normal case glows green and changes to red in the event of an error signal, so that it is immediately recognizable to the user that there is an error here.

In this case, provision is preferably made for the externally visible electrical optical shield to be in the form of a backlit arrow and to be configured on the front face of the evaluation unit, which remains free in the mounting position, with the tip pointing of the arrow to the top monitored.

Through this arrangement and configuration it is achieved that the optical display supplied by the supply voltage pointing in the form of an arrow or a triangle towards the corresponding upper part, to which the monitoring and evaluation unit is adapted, so that in case of a large number of devices arranged in series for the user it is easily recognizable which element is defective.

Furthermore, it is preferably provided that the electronic monitoring and evaluation unit detects and evaluates the overvoltage events in relation to intensity and duration, the optical display switching to a corresponding error mode, when the sum of all overvoltage events detected overvoltage exceeds a reliable limit value of the overvoltage protection part, and the error signal of the bus connector overvoltage unit is changed to error mode.

The intensity and duration of the light flash generated by the gas discharge tube are recorded, stored and evaluated in the electronic evaluation unit. The sum of the detected overvoltage events is electronically compared to a limit value. Whenever the sum exceeds the reliable limit value, which is suitable for the gas discharge tube, the optical display is switched to error mode, thus e.g. red, and the error signal of the bus connector is also switched to error mode, so remote signaling can take place on this.

In addition, it is preferably provided that the bus system has, for example, six bus lines, specifically one line for supply voltage -positive-, one line for supply voltage -negative- (ground), one line for signal (FS) for error, one line for data (+) (A), one line for data (-) (B), one line for signal ground (GND).

Instead of six data lines, as required, more or fewer data lines can also be installed.

In addition, it is preferably provided that a power supply unit is arranged as a voltage source, which is designed to supply several upper parts with a monitoring and evaluation unit via the bus connectors, the power supply unit having , preferably a status display device for O.K. of all connected tops and for faulty state or error state of a top.

Such a power supply can, for example, ensure the supply of up to 30 surge protection devices, the status of the connected upper parts being able to be captured and displayed at the same time by the status display device.

It is particularly preferred that the power supply unit has connection terminals for connecting a voltage source with, preferably, 10 volts to 30 volts direct voltage or 5 volts via a USB plug connector. .

The power supply unit preferably has a USB interface, for example in the form of a mini-USB socket, preferably located in the upper case. With the help of host software (PC, SPS), the number of surge events can be transmitted to the host (PC, SPS) from all overvoltage counter devices. Advantageously, the system can also be supplied with voltage via a USB cable, provided that the USB host system can make available sufficient power for all pluggable data line protection tops with optical signaling. Also the connection of the supply voltage via a simple USB cable is faster, than a conventional interconnection of a power supply to the connection terminals of the power supply.

Provision can also be made for the voltage source, in particular the power supply, to have a remote signaling device (relay) for remote signaling to a remote receiving and monitoring center.

Furthermore, provision is preferably made for the electronic monitoring unit to have a transistor switch, in particular a FET and/or a bipolar transistor.

Preferably, it can also be provided that several bus connectors can be pluggably connected in series.

An exemplary embodiment is shown in the drawing and is described in more detail below.

Sample:

Figure 1 a view of devices for protecting data lines against overvoltages;

Figure 2, a lower part in view;

Figure 3, the same, in top view, seen from above;

Figure 4, the same, view of one of the front faces;

Figure 5, the same, seen from the other front face;

FIG. 6 an upper part with adapted monitoring and evaluation unit in view;

Figure 7, the same, seen from a front face;

Figure 8, the same, seen in top view;

Figure 9 a bus connector in a view;

Figure 10 the bus connector from a different viewing direction;

Figure 11 the bus connector in a front view;

Figure 12, the bus connector seen in top view;

Figure 13, a power supply in view;

Figure 14, the same, in top view seen from above;

Figure 15, the power supply in a front view;

Figure 16, the power supply in a different front view;

FIG. 17 an electrical diagram of the lower part, upper part with optical signaling and monitoring and evaluation unit as well as bus connector;

Figure 18, the associated power supply.

In the Figures a device for protecting data lines against overvoltages is shown with a lower part 1 for pluggable acceptance of an upper part 2, which includes overvoltage protection elements.

In the case of the device, an electronic monitoring unit is provided, which detects whether an upper part 2 is plugged in. In the event that an upper part 2 is plugged in, a positive signal is generated, in the event that an upper part 2 is not plugged in and also in the event that at least one overvoltage protection part of the upper part is defective. 2 upper plugged in, a corresponding negative signal is output by the monitoring unit. In addition, a bus system with several bus lines is provided, which are connected to a voltage source and at least to the monitoring unit, in addition to which a signaling unit is connected, which displays the signal from the monitoring unit. and/or forwards it to remote signalling.

The electronic monitoring unit 3 is installed on a bus connector 4, which communicates with the bus system 5 and a monitoring and evaluation unit 6. The monitoring and evaluation unit 6 is coupled with the upper part 2. The coupling can take place, for example, in such a way that the two are arranged in a common housing. The coupling, however, can also take place in such a way that the housing of the monitoring and evaluation unit 6 is laterally connected to the housing of the upper part 2 and fixed thereto.

In particular, the lower part 1 has several connection terminals 1 to 4 for data lines, shield connection terminals S for electrical shielding, as well as a GND connection to ground. The associated connection terminals are connected by electrical conductors within the lower part 1 and these conductors are in conductive connection with first connection plug contacts 7 for the upper part 2. The upper part 2 presents the overvoltage protection parts, at least one gas discharger and one transient voltage protection diode, these being conductively connected with corresponding second connection plug contacts 8 . The upper part 2 can be correspondingly pluggably connected to the lower part 1, the first and second connection plug contacts 7, 8 being connected in plug-in position.

The lower part 1 is combined with the bus connector 4, which has bus lines running in a plane below the lower part 1, which each terminate in plug socket connectors 9, 10. The bus connector 4 has a body 11 protruding from the previously created bus lines, in which the electronic monitoring unit 3 is installed, which is in contact with at least some bus lines/connectors. Furthermore, the bus connector 4 has connection lines contacting the bus lines, which contact plug contacts 12 on one side of the plug. The upper part 2 is wirelessly coupled with a signal device 13 for the upper part 2, which is combined with the monitoring and evaluation unit 6 . The signal device 13 together with the evaluation unit 6 is contacted in the functional position via connection contacts 14 with the plug contacts 12 of the bus connector 4 . As a voltage source, a power supply can be connected in series to a device, which is made up of at least a lower part 1 and an upper part 2, as well as having a bus connector 4, being established by means of the corresponding connectors 9 , plug socket 10 of the bus connector 4 the connection to other bus connectors or the connection to the power supply 15, which has corresponding plug connectors 16 .

As shown in the exemplary embodiment, the lower part 1 can be locked into a mounting strip 17. The bus connector 4 and the voltage source in the form of power supply 15 can also be locked in this, the plug socket connectors forming the bus lines being guided into a recess in the mounting strip 17 .

The upper part 2 is permeable to light at least in the region of the arrangement of the overvoltage protection parts, in particular of the gas discharge tube, the electronic monitoring and evaluation unit 6 being adapted to cover this region or this region. , so that overvoltage events, which the gas discharger makes visible, can be visually detected and processed by the monitoring and evaluation unit 6 . The evaluation unit also has the electrical optical screen 13 visible from the outside, which visualizes either the correct operation of the overvoltage elements, in particular of the load discharger, or its error signal.

Preferably, the electrical optical screen 13 visible from the outside (preferably from above) is in the form of a backlit arrow, the arrowhead pointing towards the upper part 2 monitored, so that it is obvious to the user which top 2 part the visualization is associated with.

The electronic monitoring and evaluation unit 6 evaluates the overvoltage events with regard to their intensity and their duration, the optical display 13 then switching to a corresponding error mode, when the sum of all detected overvoltage events exceeds a value stored reliable limit of the overvoltage protection part, in particular of the gas discharge tube, and by changing the error signal of the bus connector 4 (of the electronic monitoring unit 3 inside) to error mode.

The bus system 5 has, for example, bus lines, namely a line for "positive" supply voltage, a line for "negative" supply voltage (ground), a line for an error signal FS, a line for data (+)A, a line for data (-)B, as well as a line for signal ground (GND).

The power supply unit 15 is arranged as a voltage source, which is designed to supply several upper parts 2 with monitoring and evaluation unit 6 via the bus connectors 4, the power supply unit 15 having preferred, a status display device 18 for the O.K. of all connected top 2 parts and for faulty state or error state of a top 2 part.

The power supply 15 also preferably has + and -- connection terminals for connecting a voltage source with, preferably, 10 to 30 volts DC, or else a connection socket 19 for a USB plug connector, through which a voltage of, for example, 5 volts can be fed.

Furthermore, the voltage source, in particular the power source 15, has a remote signaling device (relay) for remote signaling to a remote reception and monitoring center. The electronic monitoring unit 3 preferably has a transistor switch, in particular a FET and/or a bipolar transistor. As already shown in FIG. 1, provision is made for the arrangement of several lower parts 1, upper parts 2, as well as bus connectors 4 on a corresponding mounting strip, the connectors 4 being plugged together in the installation arrangement. correspondingly arranged bus.

An electrical schematic is shown in Figures 17 and 18, which clarifies the electrical components and their interconnection. The legend, which is an integral part of the description, defines the individual positions. The electrical diagram does not have a limiting function, but only serves to explain the invention.

Of course, the invention is not limited to the exemplary embodiment, but is in many cases variable within the scope of the disclosure.

Legend

PDP-UP-OS top of pluggable data line protection with optical signaling

PDP-BP bottom of pluggable data line protection

PDP-BC pluggable data line protection bus connector

PDP-PS pluggable data line protection power supply

DEV device to be protected

CAB 2 or 4 pole shielded line

TS(PE) mounting strip with ground connection

PE2 alternative ground connection via connection terminal

TSK mounting strip contact

GDT gas discharge tube (3 poles)

GDT2 gas discharge tube (2 poles)

TVS transient voltage protection diode

R decoupling element (resistance, inductance, TBU)

T transistor switch (switch, FET, bipolar transistor)

PD photodiode for detection of light pulses in the GDT

mc microcontroller

LED light emitting diode (red green or more colors)

K relay

DC/DC DC/DC converter

usb usb socket

1 connection terminal for 1st data signal (unshielded)

2 connection terminal for 2nd data signal (unshielded)

datos (no blindado)3 connection terminal for 3rd input signal

data (unshielded)

4 connection terminal for 4th data signal (unshielded)

1' connection terminal for 1st data signal (shielded)

2' connection terminal for 2nd data signal (shielded)

3' connection terminal for 3rd data signal (shielded)

4' connection terminal for 4th data signal (shielded)

5 connection terminal for shielded conductor (unshielded)

PE connection terminal for grounding

+ connection terminal for voltage supply

+10- 30V

connection terminal for voltage supply GND

11 connection terminal for remote signaling COM (Pol)

12 connection terminal for remote signaling NC (opener) 14 connection terminal for remote signaling NO (closer) 5V 5V voltage supply

GND voltage supply from GND

FS error signal

DT detection signal

To data interface A+

B data interface B-light pulse from GDT to PD

Claims (12)

1. Device for protecting data lines against surges with a lower part (1) for the acceptance of an upper part (2) with surge protection parts, the upper part (2) for plug-in connection with a part (1) lower, an electronic monitoring unit (3), which detects if an upper part (2) is plugged in, emitting a corresponding signal by the monitoring unit in the event that an upper part (2) is plugged in, in the case that an upper part (2) is not plugged in and in the event that at least one surge protection part of the plugged-in upper part (2) is defective, a bus system (5) with several bus lines, the which are connected to a voltage source and at least to the monitoring unit (3), also being connected to a signaling unit (13), which displays the signal from the monitoring unit and/or forwards it to a remote signaling , characterized by q The electronic monitoring unit (3) is arranged on a bus connector (4), which communicates with the bus system (5) and a monitoring and evaluation unit (6), which is coupled with the upper part (2). Device according to claim 1, characterized in that the lower part (1) has several connection terminals 1 to 4 for data lines, shield connection S for an electrical shield, connection PE to ground, associated connection terminals being connected by means of electrical conductors below the lower part (1) and these conductors are in conductive connection with first connection plug contacts (7) for the upper part (2), said upper part (2) presenting the protection parts against overvoltages , at least one gas discharger and/or a protection diode against transient voltages, which is in conductive connection with suitable second plug-connection contacts (8), being able to be connected by plugging or by plugging the upper part (2) with the part ( 1) lower and, in the plug position, the first and second plug contacts (7, 8) intervene in each other giving contact, the lower part (1) is combined with n the bus connector (4), which has bus lines running in a plane below the lower part (1), each terminating in plug socket connectors (9, 10), which presents a body (11) protruding from the bus lines, in which the electronic monitoring unit (3) is installed, which is in contact with at least some bus lines, as well as the one that has connection lines that contact With the bus lines, which are contacted at plug contacts (12) on one side of the plug, the upper part (2) is wirelessly coupled with a signal device (13) for the upper part (2), which is combined with the evaluation unit (6), the signal device (13) together with the evaluation unit (6) making contact or being able to make contact via connection plug contacts (14) with the plug contacts of the connector (4) of bus, and as a voltage source, a source (15) of power supply to a device that is composed of at least a lower part (1) and an upper part (2), as well as a bus connector (4), which can be plugged into the bus lines of the connector (4) of bus. Device according to one of claims 1 or 2, characterized in that at least the lower part (1) can be locked in a mounting strip (17) or also additionally the bus connector (4) and/or the voltage source (power supply (15)) and that the bus lines are led into a slot in the mounting strip (17). Device according to one of Claims 1 to 3, characterized in that the upper part (2) is permeable to light at least in the region of the arrangement of the overvoltage protection parts, preferably of the gas discharge tube. , which is adapted by covering the electronic monitoring and evaluation unit (6) in this region or this region, so that overvoltage events can be detected visually in the gas discharge tube and processed in the evaluation unit (6) , the evaluation unit (6) presenting an electrical optical screen (13) visible from the outside, which displays the correct operation of the gas discharger and its error signal. Device according to claim 4, characterized in that the electrical optical screen (13) visible from the outside has the shape of a backlit arrow and is configured on the front face of the evaluation unit (6) which remains free in the position assembly, pointing the arrowhead towards the upper part (2) monitored. Device according to one of claims 1 to 5, characterized in that the electronic evaluation and monitoring unit (6) captures and evaluates the overvoltage events with respect to their intensity and duration, the optical screen (13) being changed, when the sum of all detected overvoltage events exceeds a reliable limit value of the overvoltage protection part, in particular of the gas discharge tube, into a corresponding error mode and the error signal of the gas discharge unit (3) is changed. bus connector (4) to error mode. Device according to one of Claims 1 to 6, characterized in that the bus system has, for example, six bus lines, namely one line for -positive- supply voltage, one line for -negative- supply voltage ( ground), one line for an error signal (FS), one line for data (+) (A), one line for data (-) (B), one line for signal ground (GND). Device according to one of Claims 1 to 7, characterized in that a power supply (15) is provided as a voltage source, which is designed to supply several upper parts (2) with a monitoring unit (6) and via the bus connectors (4), the power supply (15) preferably having a status display device (18) for the O.K. of all connected top parts (2) and for the faulty state or error state of a top part (2). Device according to claim 8, characterized in that the power supply (15) has connection terminals (++ and --) for the connection of a voltage source with, preferably, 10 volts to 30 volts of voltage. continuous or 5 volts through a USB plug connector. Device according to one of claims 1 to 9, characterized in that the voltage source, in particular the power source (15), has a remote signaling device (relay) for remote signaling to a central reception and remote monitoring. Device according to one of Claims 1 to 10, characterized in that the electronic monitoring unit (3) has a transistor switch, in particular a FET and/or bipolar transistor. Device according to one of Claims 1 to 11, characterized in that several bus connectors (4) can be connected by plugging in a serial arrangement.