EP3807657A1 - Sensoreinrichtung für eine reihenklemmenanordnung, reihenklemmenanordnung, reihenklemme, schaltschrank sowie ausleseeinrichtung - Google Patents
Sensoreinrichtung für eine reihenklemmenanordnung, reihenklemmenanordnung, reihenklemme, schaltschrank sowie ausleseeinrichtungInfo
- Publication number
- EP3807657A1 EP3807657A1 EP19730164.1A EP19730164A EP3807657A1 EP 3807657 A1 EP3807657 A1 EP 3807657A1 EP 19730164 A EP19730164 A EP 19730164A EP 3807657 A1 EP3807657 A1 EP 3807657A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sensor device
- sensor
- terminal block
- terminal
- 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.)
- Pending
Links
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/22—Bases, e.g. strip, block, panel
- H01R9/24—Terminal blocks
- H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
- H01R9/2625—Clip-on terminal blocks for side-by-side rail- or strip-mounting with built-in electrical component
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/22—Bases, e.g. strip, block, panel
- H01R9/24—Terminal blocks
- H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
- H01R9/2675—Electrical interconnections between two blocks, e.g. by means of busbars
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
- H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
- H02B1/052—Mounting on rails
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/72—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
Definitions
- the invention relates to a sensor device for a modular terminal arrangement, the sensor device having at least one sensor for detecting a physical size of the modular terminal arrangement or at least one modular terminal block of the modular terminal arrangement.
- the invention also relates to a terminal block arrangement and a terminal block, a control cabinet with at least one such terminal block arrangement and / or terminal block and a readout device.
- Terminal blocks are widely used in electrical installation technology. Terminal blocks are usually attached to a mounting rail and lined up next to one another in order to provide a large number of electrical connection options for electrical conductors. A common use of terminal blocks is that they are installed in a control cabinet. The terminal blocks then form a terminal block arrangement. Such a terminal block arrangement is e.g. known from DE 20 2016 104 456 U1.
- the invention is based on the object of providing an easy-to-use possibility for the user to record physical quantities of the terminal block arrangement, such as e.g. State current, voltage, temperature.
- a sensor device for a terminal block arrangement having at least one sensor for detecting a physical variable of the terminal block arrangement or at least one terminal block of the terminal block arrangement. Depending on the design of the at least one sensor, this makes it possible to detect virtually any physical quantities of the terminal block arrangement.
- the sensor device can also have several Have sensors, e.g. B. sensors for the detection of different physical dimensions such as current and voltage.
- the sensor device is designed as a structural unit that can be handled separately from the modular terminal arrangement, which the user can attach to a modular terminal block or between modular terminals of the modular terminal arrangement if required.
- This has the advantage that, if required, the user can install one or more sensor devices at the desired location in order to determine physical quantities of the terminal block arrangement in this way. A complete modification of the terminal block arrangement or the control cabinet is not necessary for this.
- the sensor device permits simple and reliable placement at the desired point in the terminal block arrangement or a terminal block, as will be explained below.
- the sensor device has a wireless transmission unit which is set up for the wireless transmission of measured values of the at least one sensor of the sensor device to a reading device separate from the sensor device.
- the measured values can be transmitted wirelessly, e.g. by radio transmission, inductive or capacitive coupling or optical data transmission.
- it can be a UHF wireless transmission, e.g. with a transmission path inside the control cabinet.
- the sensor device can have its own RFID transponder and / or a WLAN transmitter, so that the measured values recorded can be transmitted wirelessly to an evaluation device via WLAN transmission.
- the sensor device has a first wireless transmission unit for transmitting measured values of a current measured by the sensor device and at least one second wire los transmission unit for wireless transmission of measured values of a voltage or potential measured by the sensor device.
- the current and voltage of an electrical line can be recorded.
- the sensor device can be designed with the first and the second wireless transmission unit in the form of a structural unit or in the form of separate structural units, e.g. B. in that one unit of the sensor device has the first wireless transmission unit and the other unit has the second wireless transmission unit.
- the supply of the sensor device with electrical energy required for the operation of the sensor device can e.g. done by an electrical line. It is also advantageous to equip the sensor device with its own electrical energy source, e.g. an accumulator or a battery. In this case, no electrical line to the sensor device has to be laid for the energy supply.
- the sensor device can also supply its energy directly from the physical quantity to be detected by the sensor, e.g. B. derive a current and / or a voltage.
- the electrical energy can be derived, for example, via the magnetic field generated by the current to be measured.
- the sensor device is set up for the wireless supply of electrical energy, which is required for the operation of the sensor device.
- This has the advantage that the sensor device can be provided without its own energy source.
- no separate cabling is required for the supply of electrical energy via electrical lines to the sensor device.
- This also simplifies the installation of the sensor device on the terminal block arrangement.
- maintenance is simplified since no separate energy source of the sensor device has to be exchanged or charged.
- the transmission of energy can, for example, by radio Transmission, inductive or capacitive coupling or optical transmission take place.
- the sensor module can, for example, be formed with one or more solar cells and can obtain the electrical energy required for the operation of the sensor module.
- the sensor module can be supplied with electrical energy, for example, inductively or capacitively from an adjacent terminal block.
- the sensor device has an energy harvesting device which is set up for the wireless absorption of electrical energy from the surroundings of the sensor device and for providing the electrical energy for the electrical supply of components of the sensor device. In this way, practically any energy sources in the environment can be tapped and used for the electrical supply of the sensor device.
- the sensor device can also provide additional data, e.g. an identification code that can be used to identify the sensor device. In this way, it is possible to distinguish between the measured values of different sensor devices with little effort, in particular in the case of wireless transmission.
- additional data e.g. an identification code that can be used to identify the sensor device.
- the sensor device can be designed as a sensor module, ie as a structural unit which has all the components required for the operation of the sensor device.
- the sensor module can be manufactured as MID (Molded Interconnect Devices), for example. In this case, all components including the electronics of the sensor module can be injected in a plastic material.
- the sensor device can also have separate components such as the at least one sensor, an antenna and / or an electronic assembly. These separate components can, for example, be distributed in a terminal block and can be electrically connected to one another.
- the sensor device can in particular have a dipole antenna. According to one embodiment of the invention, it is provided that the sensor device has an RFID transponder.
- the sensor device is designed as a lateral end plate of a terminal block.
- terminal blocks have a housing which is open on one side and which is closed by arranging an adjacent terminal block.
- a side end plate is attached to the last terminal block of the terminal block arrangement, so that this last terminal block is also closed.
- the side end plate having the sensor device can have the same width as a conventional side end plate or can be made somewhat wider.
- the end plate can also have the same width as a terminal block. This enables bridging beyond the end plate.
- the lateral end plate completely or predominantly encloses the sensor and / or an electronic assembly of the sensor device in the manner of a housing.
- the end plate can also be designed as an angular end plate.
- An angled front area of the end plate which is arranged at an angle to a cover area of the end plate to be arranged laterally on the terminal block, then covers at least a partial area of the front side of the terminal block.
- the antenna of the sensor module can then be arranged in the angled front area. In this case, those parts of the front side of the terminal block that are required for the connection of electrical lines or jumpers or for labeling fields can remain free.
- the at least one sensor is arranged at a position of the side cover plate, in particular at a position of the cover area of the cover plate to be arranged laterally on the terminal block, or another housing of the sensor device, which is attached when the sensor is attached as intended lateral end plate or other housing of the sensor device is arranged on a terminal block in the region of the busbar of the terminal block.
- the correct design of the at least one sensor relative to the terminal block can already be ensured by the design of the end plate or the other housing of the sensor device. This is e.g. A great advantage for wireless current sensing.
- the lateral end plate is to be fastened to it via fastening elements assigned to the terminal block, due to the fastening elements of the terminal block and the end plate assigned to one another, a defined, intended positioning of the end plate on the terminal block is defined. On the basis of this assignment, it can already be ensured with the corresponding placement of the at least one sensor in the end plate or the other housing that the at least one sensor is arranged at a desired location next to the terminal block when the end plate or the other housing is intended to be on or next to the terminal block.
- the at least one sensor is arranged at a distance from the outer edge regions of the end plate in the end plate.
- the at least one sensor is therefore not on or in arranged near the outer edge of the end plate, but tends to be more central.
- the sensor device can be inserted into a jumper shaft or other shaft of a housing of a terminal block on the terminal block and can be fastened in the shaft. This allows easy mounting and placement of the sensor device on the terminal block.
- the sensor device can already be fastened by inserting it into the shaft (jumper shaft or other shaft) of the terminal block, or it can be fastened to it with a separate fastening element, e.g. a locking and / or clamping element or by adhesive.
- the sensor module can be designed, at least in its front area, which has at least one sensor, like a jumper of a terminal block. This allows, in particular, a defined insertion and engagement of the sensor module in the jumper shaft or another shaft of the terminal block. This also gives a user haptic feedback when the sensor module is correctly placed in the shaft.
- the area of the sensor device protruding from the shaft e.g. the area with the antenna does not cover certain areas of the terminal blocks, e.g. the labeling fields.
- This can e.g. be realized in that the area of the sensor device protruding from the terminal block is relatively narrow, e.g. in that the antenna is designed as a rod antenna, or this area has cutouts or is at least partially transparent.
- the sensor device is designed as a unit that is compatible with terminal blocks, that can be arranged between terminal blocks of the terminal block arrangement and that can be snapped onto a mounting rail that supports the terminal blocks.
- the sensor device can, for example, have a housing which Lich its outer design and the mounting options correspond to the housing of a terminal block.
- the sensor device can have fastening elements for fastening to the mounting rail.
- the housing of the sensor device can have the same width as a terminal block, or can be wider or narrower. It is particularly advantageous if the sensor device has a size that is compatible with a defined grid dimension of the terminal block arrangement.
- no additional connections or cabling are required when accommodating the sensor device on the terminal block or the terminal block arrangement.
- the sensor of the sensor device can be automatically arranged by the way it is accommodated in the sensor device so that the desired detection of the physical quantity is possible by at least one sensor of the sensor device. If, for example, a current is to be detected by the sensor, the sensor is arranged in the sensor device such that when the sensor device is provided on the terminal block, the sensor is automatically placed in the vicinity of the busbar of the terminal block.
- the sensor device has at least one antenna, the at least one sensor of the sensor device being arranged at one end of the sensor device and the at least one antenna being arranged at the opposite other end of the sensor device.
- the sensor device partially protrudes from the terminal block arrangement, in particular with the area having the antenna. This also has a positive influence on the wireless transmission of the measured values and the electrical energy. If the sensor device is inserted, for example, into a jumper shaft or other shaft of a housing of a terminal block, the area having the antenna can still protrude from this shaft.
- the at least one sensor of the sensor device can be, for example, a current sensor for detecting the electrical current, e.g. of the current through a busbar of the terminal block arrangement, a voltage sensor, a temperature sensor, an air humidity sensor, an acceleration sensor, a vibration sensor or another sensor.
- the sensor device can also have a plurality of identical or different sensors. Other sensors can be.
- the at least one sensor is a current sensor, such as a shunt.
- the at least one sensor can also be a contactless current sensor.
- the current sensor can be designed as an AMR sensor, a magnetic field-dependent resistor (MDR - Magnetic Dependent Resistor) or a Hall sensor. This allows contactless detection of the electrical current via the magnetic field generated by the electrical current. This also simplifies the subsequent attachment of the sensor device to the terminal block arrangement. Another advantage of such a current sensor is that equally high currents, e.g. over 100 amps, as well as low currents of less than 1 ampere can be measured.
- the at least one sensor is a voltage sensor or another sensor of the sensor device is a voltage sensor.
- the voltage sensor can be a contactless voltage sensor, for example a capacitive sensor. This allows contactless detection of the electrical voltage by capacitive coupling into the voltage sensor. This also simplifies the subsequent attachment of the sensor device to the terminal block arrangement.
- the sensor device is set up to detect at least two or at least three voltage potentials of the terminal block arrangement or at least one terminal block of the terminal block arrangement. If there are connection options for the detection of two voltage potentials, then for example the voltage potential of the neutral conductor can be recorded as a reference voltage value. In addition, with the other connection option, a live line such as B.
- a phase of a three-phase network with respect to the voltage potential can be detected.
- the voltage can be measured on a phase, for example. If there are further connection options for the detection of further voltage potentials, the voltages of two or all three phases of a three-phase network or another electrical supply can also be recorded.
- the voltage can be determined from the detected voltage potentials in the sensor device, an external readout device or a separate evaluation device.
- the measured voltage potential measured values can be transmitted wirelessly to the readout device, and the corresponding voltage value and thus the power value can be determined in the readout device together with the recorded current value.
- a three-phase power measurement of a terminal block arrangement can be implemented in a simple manner and with little retrofitting.
- the sensor device is set up to detect the phase position of a current detected by the sensor device in relation to a voltage potential detected by the sensor device.
- phase information of the electrical data can be obtained and the monitoring of the terminal block arrangement or the control cabinet can thereby be further improved.
- further information can also be obtained, for example: B.
- Information about the voltage such as frequency, phase, amount, effective value and / harmonics.
- the object mentioned at the outset is also achieved by a series terminal arrangement with a multiplicity of series terminals and with at least one sensor device of the type explained above.
- the sensor device can be installed permanently or releasably on the terminal block arrangement.
- each of the terminal blocks of the terminal block arrangement have a sensor device of the type explained above.
- the object mentioned at the outset is also achieved by a terminal block with at least one sensor device of the type explained above.
- the sensor device can be permanently or detachably installed on the terminal block, e.g. as part of the terminal block production process.
- a plurality of sensor devices can also be installed on a terminal block, for example a sensor device for acquiring current measured values and a sensor device for acquiring voltage measured values.
- control cabinet with at least one terminal block arrangement of the type explained above and / or at least one terminal block of the type explained above. This also realizes the advantages explained above.
- a readout device for reading out measured values of one or more sensor devices of the terminal block arrangement is arranged in the control cabinet.
- This has the advantage that only a short transmission path of the acquired measured values from the sensor device to the readout device can be overcome. This is particularly advantageous for wireless transmissions, both with regard to the measured values and with regard to the supply of electrical energy.
- the reading device can have a transponder reading device. In this way, the readout device enables both the readout of the measured values by wireless Transmission as well as wireless supply of the sensor device with electrical energy is possible.
- the object mentioned at the outset is also achieved by a readout device for reading out measured values of one or more sensor devices of the terminal block arrangement. This also realizes the advantages explained above.
- the readout device can also already contain an evaluation device for evaluating the measured values acquired.
- the reading device can be connected to a remote evaluation device, e.g. via electrical lines or via wireless transmission.
- the readout device can be connected to or have a WLAN device, via which the measured values recorded are transmitted wirelessly to the evaluation device.
- the readout device is arranged on the inside of a door of the control cabinet. This has the advantage that, at least when the door of the control cabinet is closed, the reading device is arranged particularly close to one or more sensor devices in the control cabinet, so that only a particularly short distance has to be covered for the wireless transmission.
- an antenna of the sensor device is arranged at a point on the terminal block that is furthest away from the mounting rail fastening elements of a terminal block, e.g. on the side of the housing facing away from the mounting rail fastening elements, or in that the sensor device with the antenna still protrudes somewhat from the mounting rail from this position or the antenna can be pivoted and / or optimally aligned in the direction of the readout device.
- the readout device can have, for example, a UHF / MW RFID reader and a gateway.
- the readout device wirelessly reads out the measured values of various sensor devices of the terminal block arrangement.
- the selection device device acts as a transmitter and transmits a UHF / MW signal that is picked up, modified and re-emitted by the sensor devices.
- the signal re-emitted by the sensor devices contains the information about the measured value of the at least one sensor.
- This signal is received by the readout device, which now acts as a receiver, and converted into a corresponding format and passed on via various interfaces, for example GSM, WLAN.
- the reading device can also serve as a measuring transducer and for standardizing the measured values and signals.
- the readout device can have, for example, a cloud connection via WLAN.
- the readout device thus functions as a multi-communicator (MUK).
- MUK multi-communicator
- the reading device can transmit measured values and other data to an evaluation device or receive data from an evaluation device via the gateway.
- the gateway can e.g. have a wireless interface for data communication, e.g. GSM, WLAN.
- a software calibration of the measured values can take place, e.g. in that the calibration is already carried out in the sensor device using a calibration curve stored in the sensor device, or the calibration is carried out in the reading device using a calibration curve stored in the reading device.
- the readout device can then select the calibration curve suitable for a sensor device from a large number of calibration curves on the basis of the unique identification identifier of the sensor device. In-situ calibration using an external current measuring device is also possible.
- the read-out device is set up to determine a power measured value from current and voltage measured values which the read-out device has read out from one or more sensor devices of the terminal block arrangement.
- This allows the terminal block arrangement and thus the control cabinet to be monitored even more precisely.
- the invention thus allows a three-phase power measurement in the control cabinet in a simple manner.
- UHF RFID technology and magnetic field sensors can provide the basis for implementing the invention. Because of the size that can be realized, the flardware for three-phase power measurement can be very easily integrated into a terminal block during the manufacturing process or can be attached to the terminal block relatively easily afterwards.
- the indefinite term “a” is not to be understood as a numerical word. So if e.g. When one speaks of a component, this should be interpreted in the sense of “at least one component”. Insofar as angles are given in degrees, they refer to a circular dimension of 360 degrees (360 °).
- FIG. 1 shows a terminal block arrangement with two side-by-side terminal blocks arranged in perspective and
- FIG. 2 shows a terminal block of the terminal block arrangement according to FIG. 2 in a side sectional view and
- Figure 3 shows a terminal block and an end plate in front view
- FIG. 5 shows the arrangement according to FIG. 3 with the sensor device according to FIG. 4 and inserted therein
- FIG. 6 shows the end plate with the sensor device according to FIG. 5 in a side view
- FIGS. 7 to 9 different constructional embodiments of sensor devices
- Figure 10 is a control cabinet with a terminal block arrangement
- FIG. 11 shows a sensor device and a readout device in block diagram representation
- FIG. 12 shows a further constructive embodiment of a sensor device
- Figures 13, 14 a terminal block in front view
- FIG. 15 shows a terminal block arrangement with 5 terminal blocks in front view
- Figure 16 shows a terminal block with a sensor device in a schematic
- FIG. 1 shows a perspective view of a terminal block arrangement 7 with two terminal blocks 8 arranged next to one another. These terminal blocks 8 are matched to one another in such a way that plug openings designed as jumper shafts 9 on the upper side of the insulating material housing 10 of the terminal blocks 8 are aligned with one another.
- the terminal blocks 8 each have at least one busbar 11 with spring-type terminals 12 for connecting electrical conductors (not shown) to the busbar 11, which are introduced into a conductor insertion opening 13 in the insulating material housing 10.
- a plug opening 14 is also present in the busbar 11, the jumper shaft 9 inserted in the insulating housing 10 in the terminal block 8 leading to the plug opening 14.
- a clamping spring 15 is also installed in the plug-in opening 14 of a terminal block 8 in order to press a plug-in tongue 2 of a cross-connector 1 inserted into the plug-in opening 14 by spring force against the plug-in tongue 11 and thus improve the current transfer.
- the terminal blocks 8 have a latching foot 16 on their side opposite the jumper shaft 9, which is provided in a manner known per se for snapping the terminal blocks 8 onto a mounting rail (not shown).
- the cross jumper 1 shown has a web 4 projecting laterally beyond these two terminal blocks 8 shown, with further tabs projecting therefrom.
- the number of tongues of a cross bridge 1 and thus the length of the web 4 is almost arbitrary and depends on the particular need.
- the illustration according to FIG. 2 illustrates that a sensor device 100 according to the invention on a terminal block 8 of the previously explained terminal block arrangement 7 can be used, for example, to measure the current flowing through the busbar 11.
- the sensor device 100 can be inserted, for example, into a bridge shaft 9 and fastened there, for example by means of a clamp fastening, latching or an adhesive fastening.
- the sensor device 100 arranged in the bridge shaft 9 has a slim, elongated shape. At one end of the sensor device, which is arranged in the vicinity of the busbar 11, there is a sensor 105 of the sensor device 100, e.g. a contactless current sensor. At the other end of the sensor device 100 there is an antenna 101 of the sensor device 100.
- the sensor device thus protrudes with the area of the antenna 101 from the terminal block 8, which is favorable for the wireless transmission of measured values to the readout device and for the wireless supply of the sensor device 100 with electrical energy.
- the sensor device 100 generally has further electrical and / or electronic components, which are shown in simplified form in FIG. 2 as an electronic assembly 106.
- the electronic assembly 106 can be arranged in the sensor device between the sensor 105 and the antenna 101.
- FIG. 2 shows, to the left of the terminal block 8, an alternative embodiment of the sensor device 100, which is set up for attachment in the jumper shaft 9 or another shaft of the terminal block 8.
- the embodiment of the sensor device 100 shown on the left is characterized by an angled shape.
- a region of the sensor device 100 which can be plugged into the jumper shaft 9 or another shaft of the terminal block 8 in turn has the at least one sensor 105 and the electronics module 106.
- the antenna 101 is arranged in an upper area of the sensor device 100, which is angled away from it. This advantageously influences the wireless transmission of the measured values and the energy.
- the sensor device 100 can have a fixed (rigid) angled shape, for example at an angle of approximately 90 degrees.
- the sensor device 100 can also have a joint, as will be described below with reference to the embodiment in FIG. 8.
- the antenna can be aligned at a desired angle by means of the joint. The angle can then be set by the user.
- FIG. 3 shows a further possibility for accommodating a sensor device 100.
- a terminal block 8 of the type explained above can again be seen, specifically in a viewing direction in which the conductor insertion openings 13 and the jumper shafts 9 are looked at.
- the terminal block 8 can be designed such that it has a housing that is open to one side. This housing is then to be closed with an end plate 30.
- the end plate 30 is used as an accommodation option for a sensor device 100.
- the sensor device 100 must be constructed relatively flat.
- FIG. 3 shows an alternative in such a way that the end plate 30 is widened somewhat compared to conventional end plates and has a receiving pocket 31 for receiving the sensor device 100.
- FIG. 4 shows such a sensor device 100 in a direction of view comparable to that of the components shown in FIG. 3.
- the antennas 101 and an intermediate connecting piece 107 can be seen.
- FIG. 5 shows the sensor device 100 inserted into the receiving pocket 31 of the end plate 30.
- the current sensor 105 of the sensor device 100 must be placed accordingly. This is shown in FIG. 6. Due to the illustrated placement of the current sensor 105, the latter is arranged approximately at the level of the busbar 11 of the terminal block 8, so that again reliable current detection is possible.
- the dashed line shows the spatial extent of the connector 107 arranged in the pocket 31, which can be designed, for example, as a printed circuit board.
- FIG. 7 shows the sensor device 100 already explained with reference to FIG. 2 in an individual representation. Due to its narrow, elongated design, this embodiment of the sensor device 100 is particularly suitable for insertion into a shaft of a terminal block.
- FIG. 8 shows a variant of a sensor device 100, which also has a narrow, elongated shape.
- the sensor device 100 is divided into a first section 108 and a second section 110.
- the first section 108 is connected to the second section 110 via a joint 109.
- the hinge 109 can e.g. be designed as a ball joint or planar joint.
- This embodiment enables an even greater flexibility when adapting the sensor device 100 to specific installation situations.
- the sensor 105 can be arranged in the second section 110.
- the antenna 101 can be arranged in the first section 108.
- the first section 108 can also be designed as an antenna as a whole. This enables good adaptation of the sensor device to the conditions of the wireless transmission, in particular by suitable alignment of the antenna 101 with the readout device.
- the sensor device can also be designed overall as an angled sensor module, e.g. by a fixed angle of e.g. about 60 degrees or about 90 degrees between a first area and a second area of the sensor module. In this case, the previously explained joint 109 is not absolutely necessary.
- FIG. 9 shows a further embodiment of a sensor device 100 that can be used in various possible applications.
- Antenna 101 can again be seen.
- Antenna 101 is connected to sensor 105 via electronics module 106 and, if appropriate, an additional connecting element 111.
- This creates a certain longitudinal extent and thus a certain distance between the antenna 101 and the sensor 105.
- This makes it possible to place the sensor 105 close to the point at which the physical quantity is to be recorded.
- the antenna 101 can be denser in Area of the reading device.
- An adaptation to the respectively required circumstances can be created, for example, by specifying a certain length of the connecting element 111.
- the sensor device 100 according to FIG. 9 can, for example, be arranged in the pocket 31 of the end plate 30, or it can be inserted into a shaft of the terminal block.
- Another possible use of the sensor device 100 is that it is, for example, permanently integrated in a terminal block, e.g. in a floch current clamp. In this case, the sensor device 100 would not have to be attached to the terminal block by the user, but would already be integrated there by the manufacturer in the manufacturing process.
- FIG. 10 shows a control cabinet 40 in a perspective view.
- the control cabinet 40 has a housing body 41 and a door 43.
- the door 43 is pivotally connected to the housing body 41.
- FIG. 10 shows the control cabinet 40 with the door 43 open.
- In the housing body 41 there is a mounting rail 42 on a rear wall.
- a plurality of terminal blocks 8 are fastened to the mounting rail 42 and form a terminal block arrangement.
- Two sensor devices according to the invention are arranged in the terminal block arrangement, namely once in the form of the end plate 30 explained with reference to FIGS. 3 to 5 with the sensor device installed therein, and a sensor device designed as a unit 35 compatible with terminal blocks.
- This assembly 35 is arranged between two terminal blocks 8 and, like the terminal blocks, is fastened to the mounting rail 42.
- FIG. 10 also shows a readout device 200 which is set up for wirelessly reading out measured values of the sensor devices.
- the readout device 200 can be connected to or contain a wireless data transmission module 300, for example a WLAN unit. In this way, the measured values of the sensor devices determined by the reading device can be transmitted wirelessly to a remote evaluation device.
- the reading device 200 can also be connected to the evaluation device via a cable 210, for example via a data network.
- the reading device 200 and / or the wireless data transmission unit 300 can be arranged in the door 43, i.e. on the inside of the door 43. If the door 43 is closed, the readout device 200 is located in the immediate vicinity of the antennas of the sensor devices.
- FIG. 11 shows a sensor device 100 and a readout device 200 in a block diagram representation.
- the sensor device 100 has the antenna 101 already explained.
- a receiving branch 102 of the sensor device 100 and a transmitting branch 103 of the sensor device are connected to the antenna 101.
- electromagnetic radiation received via the antenna 101 can be converted into electrical energy, for example, which is used for the electrical supply for the operation of the sensor device 100.
- the receiving branch 102 can have, for example, a rectifier circuit and a voltage multiplication circuit.
- the sensor device 100 can also detect and decode data information contained in the electromagnetic waves recorded via the antenna 101. The recorded data are then forwarded to an internal control computer 104 of the sensor device 100.
- the control computer 104 is the central control element of the sensor device 100.
- the control computer 104 is connected to sensor 105.
- the control computer 104 controls the sensor
- the antenna 101 can be designed, for example, as a dipole.
- the reading device 200 has a transmission branch 203 and a reception branch 204.
- the transmission branch 203 and the reception branch 204 are coupled via a circulator 202 to an antenna 201 of the readout device 200.
- the antenna 201 can be designed, for example, as a dipole.
- the readout device 200 generates in the transmission branch 203 the corresponding signals for emitting the electromagnetic waves which are to be picked up by the sensor device 100 via the antenna 101.
- the electrical energy for supplying the sensor device and possibly data signals are contained in these electromagnetic waves.
- the read-out device 200 receives the data contained in the electromagnetic waves transmitted back from the sensor device 100 via the reception branch 202 and makes them available at an output interface 205.
- the data communication between the sensor device 100 and the read-out device 200 can also include the transmission of an identification identifier of the sensor device 100 to the read-out device 200.
- FIG. 12 shows an embodiment of the sensor module 100, in which an end plate 30 is used.
- the end plate 30 has a cover area 35 to be arranged laterally on the terminal block and a front area 32 which is angled with respect to the cover area 35.
- the front area 32 does not necessarily have to run continuously along the entire longitudinal extent of the cover area 30, but can, for example, as can be seen in FIG. 12, be designed in the form of one or more laterally projecting material tongues.
- the end plate 30 does not necessarily have to have the mentioned pocket 31, nor does it have to be wider than the usual end plates, at least not in the cover area 35.
- the end plate 30 can be inserted into, in the coverage area 35, the sensor 105 and the electronics module 106 are integrated.
- the antennas 101 can be arranged in the angled front area 32.
- the tongues of the angled front area 32 can be placed in such a way that certain areas of the front side of the terminal block are not undesirably covered, in particular not the labeling fields, the conductor insertion openings and jumper shafts.
- FIG. 13 shows an embodiment of a terminal block 8, in which the electrical power is measured by providing two sensor devices, each with its own antenna 101.
- One sensor device is used to measure the current
- the other sensor device is used to measure the voltage or at least one electrical potential.
- the sensor devices can each be designed as RFID transponders.
- One sensor device can, for. B. have a magnetic field sensor to detect a magnetic field measurement on the busbar and thus a signal characterizing the flowing current.
- the other transponder has one or more connections for the potential tap in order to record potential values.
- the transponders then transmit the detected magnetic field values and potential values to the read-out device 200.
- voltage values and current values and a value of the electrical power can be determined from the transmitted values.
- FIG. 14 shows a terminal block 8 which is equipped in a manner comparable to the row terminal of FIG. 13.1.
- the antennas 101 and, accordingly, the RFID transponders are arranged one above the other, FIG Terminal block 8.
- the respective antennas 101 then extend with their predominant longitudinal extent (largest longitudinal dimension) parallel to the side walls of the terminal block 8.
- the sensor devices for the current measurement and / or the voltage measurement can also be integrated in an end plate 30.
- the end plate 30 can be designed with one or more connections for the potential tap, for example with at least 4 connections for the potential tap.
- a terminal block provided with such an end plate 30 can serve as a connecting element for an electrical line to be detected, e.g. B. for the neutral conductor. Then one of the connections for the potential tap can be connected to the voltage tester slot of the terminal block.
- the sensor device e.g. B. an RFID tag
- the potential value of the connected electrical conductor e.g. of the neutral conductor
- Another free connection for the potential tap can be connected to the voltage tap of another terminal block, e.g. B. a phase terminal leading L1.
- the potential value determined via this connection is likewise transmitted to the readout device 200.
- the voltage value can then be determined in the reading device 200 by forming the difference between the potential values, so that the value of the electrical power can be determined together with the detected current value.
- FIG. 15 shows a series terminal arrangement with a number of series terminals 8, in this case, for example, 5 series terminals, each of which is equipped with sensor devices of the type according to the invention, only the respective antennas 101 being recognizable from these sensor devices in FIG.
- one terminal block can be designed for the connection of the neutral conductor and 3 terminal blocks for the connection of the respective phase conductor L1, L2, L3. This allows the implementation of a circuit for three-phase power measurement on the terminal block arrangement by means of the sensor devices according to the invention.
- FIG. 16 shows an embodiment of a terminal block 8, which is provided with a sensor device 100 for current measurement and a further sensor device for voltage measurement.
- the sensor device 100 for current measurement can be designed in accordance with one of the exemplary embodiments explained above.
- the sensor device 100 communicates with the via wireless data transmission 116 Readout device 200.
- the sensor device for voltage measurement is explained in more detail below.
- the conductor 21 can be the neutral conductor, the conductor
- FIG. 16 shows an embodiment variant with contactless capacitive voltage detection.
- the measuring electrode 112 is arranged in the vicinity of the electrical conductor 21.
- Another capacitive measuring electrode 113 is arranged in the vicinity of the electrical conductor 20.
- the measuring electrodes 112, 113 are connected via electrical lines to a circuit 114 or a network for processing the signals of the capacitive measuring electrodes 112, 113.
- circuit 114 for example, the respective voltage value, ie. H. the difference in the voltage potentials of the electrical conductors 20,
- phase information relating to the phase position of the voltage is detected.
- the sizes determined in this way can be considered analog electrical
- Signals or digital signals are output to measuring transducer electronics 115.
- a wireless data transmission 117 of the measured values to the readout device 200 then takes place via the transducer electronics 115.
- B. have a filter circuit or filter networks for filtering the signals received via the measuring electrodes 112, 113.
- the circuit 114 can also have a measuring amplifier and / or a high-voltage analog-to-digital converter. Alternatively, the voltage potentials supplied to the circuit 114 or at least one of these voltage potentials can also be tapped directly via galvanic coupling with the respective conductor 20, 21.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202018103319.0U DE202018103319U1 (de) | 2018-06-13 | 2018-06-13 | Sensoreinrichtung für eine Reihenklemmenanordnung, Reihenklemmenanordnung, Reihenklemme, Schaltschrank sowie Ausleseeinrichtung |
DE102019101883.8A DE102019101883A1 (de) | 2018-06-13 | 2019-01-25 | Sensoreinrichtung für eine Reihenklemmenanordnung, Reihenklemmenanordnung, Reihenklemme, Schaltschrank sowie Ausleseeinrichtung |
PCT/EP2019/065203 WO2019238672A1 (de) | 2018-06-13 | 2019-06-11 | Sensoreinrichtung für eine reihenklemmenanordnung, reihenklemmenanordnung, reihenklemme, schaltschrank sowie ausleseeinrichtung |
Publications (1)
Publication Number | Publication Date |
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EP3807657A1 true EP3807657A1 (de) | 2021-04-21 |
Family
ID=68105340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP19730164.1A Pending EP3807657A1 (de) | 2018-06-13 | 2019-06-11 | Sensoreinrichtung für eine reihenklemmenanordnung, reihenklemmenanordnung, reihenklemme, schaltschrank sowie ausleseeinrichtung |
Country Status (5)
Country | Link |
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US (1) | US20210098906A1 (de) |
EP (1) | EP3807657A1 (de) |
CN (1) | CN112262318A (de) |
DE (2) | DE202018103319U1 (de) |
WO (1) | WO2019238672A1 (de) |
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DE102021130351A1 (de) * | 2021-11-19 | 2023-05-25 | Weidmüller Interface GmbH & Co. KG | Modularer Steckverbinder zum Kontaktieren eines Gegensteckverbinders, insbesondere eines Leiterplattensteckverbinders |
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-
2018
- 2018-06-13 DE DE202018103319.0U patent/DE202018103319U1/de active Active
-
2019
- 2019-01-25 DE DE102019101883.8A patent/DE102019101883A1/de active Pending
- 2019-06-11 WO PCT/EP2019/065203 patent/WO2019238672A1/de unknown
- 2019-06-11 EP EP19730164.1A patent/EP3807657A1/de active Pending
- 2019-06-11 CN CN201980039179.2A patent/CN112262318A/zh active Pending
-
2020
- 2020-12-14 US US17/121,215 patent/US20210098906A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2019238672A1 (de) | 2019-12-19 |
DE102019101883A1 (de) | 2019-12-19 |
CN112262318A (zh) | 2021-01-22 |
DE202018103319U1 (de) | 2019-09-16 |
US20210098906A1 (en) | 2021-04-01 |
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