WO2015007563A1 - Compteur de courant à ligne de mesure en plusieurs parties - Google Patents

Compteur de courant à ligne de mesure en plusieurs parties Download PDF

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Publication number
WO2015007563A1
WO2015007563A1 PCT/EP2014/064524 EP2014064524W WO2015007563A1 WO 2015007563 A1 WO2015007563 A1 WO 2015007563A1 EP 2014064524 W EP2014064524 W EP 2014064524W WO 2015007563 A1 WO2015007563 A1 WO 2015007563A1
Authority
WO
WIPO (PCT)
Prior art keywords
measuring
line
contact
transducer
measuring line
Prior art date
Application number
PCT/EP2014/064524
Other languages
German (de)
English (en)
Inventor
Udo Hoppe
Volker Schulze
Artur OLDENBURGER
Original Assignee
Phoenix Contact Gmbh & Co. Kg
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 Phoenix Contact Gmbh & Co. Kg filed Critical Phoenix Contact Gmbh & Co. Kg
Priority to EP14735987.1A priority Critical patent/EP3022566A1/fr
Publication of WO2015007563A1 publication Critical patent/WO2015007563A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
    • G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
    • G01R22/061—Details of electronic electricity meters
    • G01R22/065—Details of electronic electricity meters related to mechanical aspects

Definitions

  • the invention relates to a measuring line for an electricity meter device according to the preamble of claim 1.
  • a measuring line comprises (at least) two electrical connection contacts for feeding a current to be measured, wherein a measuring transducer for measuring a current conducted in the measuring line is to be arranged on the measuring line.
  • an electricity meter device is used, for example, as a digital electricity meter (also referred to as household meter) in households in order to detect an electrical current supplied, for example, via an electrical supply network.
  • the term "electricity meter” is usually used here for measuring devices with which the active electrical power is summed in an integrating manner over time, that is to say the electrical energy is measured, and such electricity meters are therefore also referred to as "energy meters”.
  • Electricity meters as known for example from DE 10 2006 008 393 A1, DE 10 2006 009 767 A1 or EP 1 659 41 1 B1, conventionally use a bent metal strip as a measuring line, which is guided through a measuring transducer.
  • the transducer comprises, for example, a toroidal core on which secondary windings are arranged, in which current flow through the measuring line, a secondary current is generated, which is proportional to the (primary) current through the measuring line and thus can be detected by which thus Measuring line flows.
  • one or more transducers are arranged in an electricity meter housing. Due to the comparatively small space available in the electricity meter housing, the possibilities for arranging the transducers in the electricity meter housing are limited.
  • test lead is intended to provide a low-impedance connection to an electrical utility grid to minimize losses due to current measurement
  • conventional electricity meters have massive bent metal strips used, which are formed in a comparatively complex manner, on the one hand to provide the necessary connection contacts for connection to an electrical supply network and on the other hand to extend through an associated transducer through.
  • a disadvantage of known current meter assemblies may be in particular that it may come to a comparatively large material consumption and a considerable waste due to the complex bending process for producing the strips made of a bent metal measuring line. The comparatively complicated bending process and the material consumption can lead to considerable costs.
  • conventionally used test leads additionally limit the possibilities for arranging transducers in an electricity meter housing.
  • the object of the present invention is to provide a measuring line for an electricity meter device, which can be produced in a simple, cost-effective manner and enables a more flexible arrangement of one or more measuring transducers in a housing of an electricity meter.
  • the measuring line is designed in several parts and has at least one contact blade, which forms a connection contact, and a line section, on which the transducer is to be arranged and which is connected to the at least one contact blade on.
  • the measuring line is thus no longer, as previously customary, made in one piece from a solid, curved metal strip, but is designed in several parts and has correspondingly one, preferably two contact blades, each carrying a terminal contact. With the contact blades, a line section is connected, which extends for example through an opening of a transducer ring of the transducer and which is thus passed through the transducer. Due to the multi-part design of the measuring line, the production of the measuring line can be simplified. In particular, bending processes can be completely or partially omitted, and the transducer can be in different positions depending on the available space in a housing of the electricity meter device
  • the measuring line Due to the multi-part design of the measuring line is possible to first arrange the line section to the transducer and then connect to the contact blades or first connect the line section with the contact blades for the preparation of the measuring line, only then raise the transducer on the line section.
  • the measuring line preferably has two contact blades, wherein the line section is connected at one end to the one contact blade and at another end to the other contact blade.
  • the line section here is advantageously flexible such that it can be adapted in shape depending on the position of the transducer and the available space and can be laid through the transducer in a simple manner.
  • the line section may be formed by a stranded wire.
  • Stranded wires are also referred to in technical terms as fine-stranded or super-stranded conductors, in contrast to inflexible, single-stranded or stranded cores.
  • the line section can be connected, for example via a welded connection, for example by means of ultrasonic or resistance welding, with the associated contact blades. It is also possible that the line section with the associated contact blades via electrical plug contacts, for example in the form of so-called tulip contacts, is connected.
  • tulip contacts are plug contacts, the plurality of a plug opening defining resiliently, for example via a spring ring biased against each other contact portions
  • Such tulip contacts can be arranged, for example, at both ends of the line section and plugged onto assigned plug-in sections on the contact blades, so that a detachable, over the tulip contacts a detachable, low-impedance connection of the line section is provided with the contact blades.
  • An electricity meter device with a measuring line preferably comprises (at least) a measuring transducer arranged on the measuring line for measuring a current conducted in the measuring line.
  • the measuring transducer is arranged on the line section of the measuring line and can, for example, have a transducer ring with an opening through which the line section extends.
  • the electricity meter device advantageously has a housing which, for example, has plug-in openings on a bottom plate, into each of which a contact blade is inserted.
  • a contact blade is inserted.
  • two contact blades are held on the bottom plate, being arranged on the bottom plate outwardly projecting ends of the contact blades, the connection contacts for connection to an electrical supply network and the contact blades are connected on the inside via the line section.
  • the conduit section extends through an associated transducer so that the transducer can sense a current passing through the contact blades and the conduit section.
  • At least one of the contact blades assigned to a transducer has, in another embodiment, a lug which serves to connect the contact blade to an electronic evaluation device, for example in the form of a printed circuit board equipped with electrical and electronic components.
  • an electronic evaluation device for example in the form of a printed circuit board equipped with electrical and electronic components.
  • the voltage across the measuring line can be tapped off via the lug to enable the detection of the electrical energy at the measuring line.
  • the flag advantageously extends at an end remote from the terminal contact of the contact blade.
  • the flag may for example have a plug-in portion with which the flag can be inserted into an associated opening of a printed circuit board for making electrical contact with a conductor track on the circuit board.
  • FIG. 1 is a perspective view of an electricity meter with arranged in a housing transducers.
  • FIG. 2 shows a view of the arrangement according to FIG. 1 from above;
  • Fig. 3 is a separate view of a transducer with a through the
  • FIG. 4 shows a view of a plug contact in the form of a tulip contact
  • Fig. 5 is a schematic view of a measuring line with a line section which is connected via plug contacts with contact blades.
  • FIGS. 1 and 2 show an electricity meter 1 having a housing 10 with transducers 2A, 2B, 2C disposed therein.
  • the transducers 2A, 2B, 2C are enclosed together with an electronic evaluation device 1 1 in the form of a stocked with electrical and electronic components circuit board in the housing 10, which is closed by a (not shown in FIG. 1) cover and thus a closed Unit represents.
  • a display device for displaying a meter reading and an input device for inputting control commands can also be arranged on the cover.
  • three transducers 2A, 2B, 2C are arranged and held in a fixed position on holding devices 103A, 103B, 103C.
  • the holding devices 103A, 103B, 103C provide, for example, recordings into which the measuring transducers 2A, 2B, 2C can be plugged or onto which the measuring transducers 2A, 2B, 2C can be plugged, so that the measuring transducers 2A, 2B, 2C in the housing 10 (positive fit) are held.
  • Each measuring transducer 2A, 2B, 2C is assigned a measuring line 3A, 3B, 3C, which extends in sections through the respective associated measuring transducer 2A, 2B, 2C and leads to a current to be measured.
  • FIG. 3 An embodiment of such a measuring line 3 in cooperation with an associated transducer 2 is shown in Fig. 3.
  • the measuring line 3 is multi-part formed and has two contact blades 30, 31, which are interconnected via a line section 32 in the form of a flexible strand.
  • the line section 32 is in this case connected to ends 320, 321 at connection points 33, 34 to the contact blades 30, 31, for example by means of ultrasonic welding or resistance welding, so that a low-impedance measuring line 3 results for guiding a current to be measured.
  • the line section 32 in the form of the flexible strand is laid through an opening 200 of a transducer ring 20 of the transducer 2 through.
  • a current to be measured is passed through the opening 200 of the transducer 2, so that the current to be measured can be measured for example by means of secondary windings on a toroidal core of the transducer 2.
  • the transducer 2 has a toroidal core on which secondary windings are arranged. At a current flow through the
  • a current is generated in the secondary windings, which is proportional to the guided in the line section 32 current, so that based on the current generated in the secondary windings of the current in the line section 32nd
  • the transducer 2 can be arranged in a relatively free manner in the housing 10.
  • the arrangement of the transducer 2 in the housing 10 of the electricity meter 1 can thus be made dependent on the space requirements, without the measuring line 3, the possibilities for the arrangement of the transducer 2 in the housing 10 is limited beyond the measures.
  • the multi-part design of the measuring line 3 also results in easy manufacture of the measuring line 3 and a simple arrangement of the measuring line 3 on the transducer 2.
  • the material waste is reduced, and the manufacturing process is simplified as a whole.
  • the flexible configuration of the line section 32 makes it possible to arrange the measuring transducer 2 on the measuring line 3 in a simple manner after connection of the line section 32 with the contact blades 30, 31. Or it is possible, first to move the line section 32 through the associated transducer 2 to only then to connect the line section 32 with the contact blades 30, 31.
  • the contact blades 30, 31 of each measuring line 3A, 3B, 3C in the embodiment of FIGS. 1 and 2 are inserted through plug-in openings 101A, 102A, 101B, 102B, 101C, 102C on a bottom plate 100 of the housing 10 of the electricity meter 1 therethrough and are thus held on the bottom plate 100 of the housing 10.
  • the contact blades 30, 31 protrude outward beyond the bottom plate with connection contacts 301, 31 1, so that the contact blades 30, 31 of each measuring line 3A, 3B, 3C are connected to a phase line of an electrical supply network to which the current supplied ( or the energy fed in) should be measured, can be connected.
  • a first of the contact blades 30, 31 has a lug 300, which, in the inserted state of the measuring line 3, 3A, 3B, 3C, of the bottom plate 100 of the housing 10 projects into the housing 10 inside.
  • a plug-in portion 303 is arranged, with which the flag 300 can be inserted into an associated plug-in opening 1 10 on the electronic evaluation device 1 1 in the form of the assembled printed circuit board.
  • the contact blade 30 can be connected to the electronic evaluation device 11, so that the voltage potential on the measuring line 3, 3A, 3B, 3C can be tapped off via the contact blade 303.
  • Another contact blade 12 is on the bottom plate 100 of the housing 10th
  • the line section 32 is connected to the associated contact blades 30, 31 by means of welding and thus by material engagement.
  • the tulip contacts 4 in this case have, as shown in FIG. 4, contact portions 40, which are arranged in a ring and define an insertion opening 400 between them.
  • the contact portions 40 are biased radially to each other via two spring rings 41 so that a plugged into the opening 400 Plug portion 302, 312 (see Fig. 5) under bias in contact with the contact portions 40 is.
  • each contact blade 30, 31 has a plug-in section 302, 312, which can be plugged into an associated plug contact 4 on the line section 32.
  • a (detachable) plug-in connection between the contact blades 30, 31 and the line section 32 can be produced via the plug contacts 4 and the plug sections 302, 312, which results in a particularly simple arrangement of the line section 32 on an associated transducer 2 in subsequent plug-in connection with the associated contact blades 30, 31 allows.
  • the line section 32 may be flexibly configured, for example, as a stranded wire. It is conceivable and possible, however - as in the embodiment of FIG. 3 also - to form the line section 32 by another conductor, such as a metal strip.
  • the electricity meter may also have more or less than three transducers.
  • the transducers can also have a different design and do not necessarily have to comprise a closed toroidal core.
  • the electricity meter is advantageously designed as a digital electricity meter for digital detection of an injected current.
  • the electricity meter can also work analogously.
  • other types of connection for connecting the contact blades with the line section are conceivable and possible, beyond connecting by means of welding or by means of tulip contacts.
  • other plug contacts can be used.
  • clamping contacts can also be used.

Abstract

Une ligne de mesure destinée à un système de comptage de courant comprend deux contacts de connexion électrique servant à alimenter un courant à mesurer. Pour mesurer un courant circulant dans la ligne de mesure, un transformateur de mesure doit être monté sur ladite ligne de mesure. Selon l'invention, la ligne de mesure (3) est réalisée en plusieurs parties et elle comporte au moins une lame de contact (30, 31) qui forme un contact de connexion (301, 311) et un segment de ligne (32) sur lequel le transformateur de mesure (2, 2A, 2B, 2C) doit être monté et qui est relié à la ou aux lames de contact (30, 31). On obtient ainsi une ligne de mesure pour un système de comptage de courant qui peut être fabriquée de manière simple et économique et qui permet de disposer de manière plus flexible un ou plusieurs transformateurs de mesure dans le boîtier d'un compteur de courant.
PCT/EP2014/064524 2013-07-16 2014-07-08 Compteur de courant à ligne de mesure en plusieurs parties WO2015007563A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14735987.1A EP3022566A1 (fr) 2013-07-16 2014-07-08 Compteur de courant à ligne de mesure en plusieurs parties

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013107518.5A DE102013107518A1 (de) 2013-07-16 2013-07-16 Messleitung für eine Stromzählereinrichtung
DE102013107518.5 2013-07-16

Publications (1)

Publication Number Publication Date
WO2015007563A1 true WO2015007563A1 (fr) 2015-01-22

Family

ID=51134117

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/064524 WO2015007563A1 (fr) 2013-07-16 2014-07-08 Compteur de courant à ligne de mesure en plusieurs parties

Country Status (3)

Country Link
EP (1) EP3022566A1 (fr)
DE (1) DE102013107518A1 (fr)
WO (1) WO2015007563A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5966010A (en) * 1998-02-09 1999-10-12 Abb Power T&D Company Inc. Electrical energy meter with snap fit interlocking parts
US5997347A (en) * 1996-06-03 1999-12-07 Ekstrom Industries, Inc. Watthour meter socket adapter with snap-on jaw contacts
US20040222783A1 (en) * 2002-06-27 2004-11-11 Elster Electricity, Llc Electrical-energy meter
DE102006008393A1 (de) 2006-02-21 2007-08-30 Hager Electro Gmbh Stromzähler
DE102006008767A1 (de) 2006-02-21 2007-09-06 Hager Electro Gmbh Stromzähler
EP1659411B1 (fr) 2004-11-18 2008-01-23 EMH Elektrizitätszähler GmbH & Co KG Compteur d'électricité électronique
US7656649B2 (en) * 2007-12-26 2010-02-02 Elster Electricity, Llc Mechanical packaging apparatus and methods for an electrical energy meter
US20120126793A1 (en) * 2010-11-18 2012-05-24 Elster Solutions, Llc Polyphase meter with full service disconnect switch
EP2461428A1 (fr) * 2010-12-01 2012-06-06 Abb Ag Boîtier de support de comptage pour une armoire de compteur

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6008711A (en) * 1998-01-09 1999-12-28 Siemens Power Transmission & Distribution Method and arrangement for securing a current transformer to an electric utility meter housing
US7265532B2 (en) * 2004-06-02 2007-09-04 General Electric Company Electronic electricity meter and method of assembly
DE102004038540A1 (de) * 2004-08-06 2006-02-23 Elster Messtechnik Gmbh Leiter- und Klemmenanordnung

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5997347A (en) * 1996-06-03 1999-12-07 Ekstrom Industries, Inc. Watthour meter socket adapter with snap-on jaw contacts
US5966010A (en) * 1998-02-09 1999-10-12 Abb Power T&D Company Inc. Electrical energy meter with snap fit interlocking parts
US20040222783A1 (en) * 2002-06-27 2004-11-11 Elster Electricity, Llc Electrical-energy meter
EP1659411B1 (fr) 2004-11-18 2008-01-23 EMH Elektrizitätszähler GmbH & Co KG Compteur d'électricité électronique
DE102006008393A1 (de) 2006-02-21 2007-08-30 Hager Electro Gmbh Stromzähler
DE102006008767A1 (de) 2006-02-21 2007-09-06 Hager Electro Gmbh Stromzähler
US7656649B2 (en) * 2007-12-26 2010-02-02 Elster Electricity, Llc Mechanical packaging apparatus and methods for an electrical energy meter
US20120126793A1 (en) * 2010-11-18 2012-05-24 Elster Solutions, Llc Polyphase meter with full service disconnect switch
EP2461428A1 (fr) * 2010-12-01 2012-06-06 Abb Ag Boîtier de support de comptage pour une armoire de compteur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "Presseinformation: TELSONIC präsentiert neue PowerWheel-Technologie in modularer Scheissmaschine", 1 November 2011 (2011-11-01), pages 1 - 3, XP055142904, Retrieved from the Internet <URL:http://www.telsonic.com/fileadmin/media/POWERWHEEL_revolutioniert_das_Metallschweisen_mit_Ultraschall.pdf> [retrieved on 20140926] *

Also Published As

Publication number Publication date
DE102013107518A1 (de) 2015-01-22
EP3022566A1 (fr) 2016-05-25

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