EP1817781A1 - Induktives bauelement und verfahren zum herstellen eines solchen induktiven beuelements - Google Patents
Induktives bauelement und verfahren zum herstellen eines solchen induktiven beuelementsInfo
- Publication number
- EP1817781A1 EP1817781A1 EP05816200A EP05816200A EP1817781A1 EP 1817781 A1 EP1817781 A1 EP 1817781A1 EP 05816200 A EP05816200 A EP 05816200A EP 05816200 A EP05816200 A EP 05816200A EP 1817781 A1 EP1817781 A1 EP 1817781A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- conductor
- inductive component
- current
- section
- component according
- 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.)
- Granted
Links
- 230000001939 inductive effect Effects 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims description 27
- 238000004519 manufacturing process Methods 0.000 title claims description 20
- 239000004020 conductor Substances 0.000 claims abstract description 158
- 238000005304 joining Methods 0.000 claims abstract description 12
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 229910044991 metal oxide Inorganic materials 0.000 claims description 5
- 150000004706 metal oxides Chemical class 0.000 claims description 5
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000005554 pickling Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000009832 plasma treatment Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 description 23
- 238000001514 detection method Methods 0.000 description 17
- 230000005611 electricity Effects 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 7
- 238000005219 brazing Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
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- 230000005540 biological transmission Effects 0.000 description 1
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- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
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- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/10—Connecting leads to windings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
- H01F38/30—Constructions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/06—Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
- H01F38/30—Constructions
- H01F2038/305—Constructions with toroidal magnetic core
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
- H01F27/292—Surface mounted devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
Definitions
- the invention relates to an inductive component having a current conductor with non-rectangular cross-section for conducting a current, at least one flat connecting conductor for supplying or discharging the current to or from the Stromlei- ter, wherein the current conductor and the connecting conductor in the region Connecting portion of the conductor are connected together to form a conductor arrangement. More particularly, the invention relates to an inductive component having a magnetic module with an opening, wherein the current conductor is passed through the opening.
- the invention also relates to a method for producing a conductor arrangement for such an inductive component.
- a magnetic module current transformer, transformer
- a construction of busbars and a matching toroidal core current transformer for detecting consumption currents in electronic energy meters is known.
- Pluggable electricity meters distributed in the USA and other countries have standardized rectangular connection lugs on the back, which are inserted into slots with suitable spring contacts when the electricity meter is mounted.
- These connections with a cross section of about 2.5 mm ax serve the input and output management of the consumption current which is at 110 V systems, a maximum of about 200-480 A e ff.
- the currents of the three phases of the AC mains are fed into the electricity meter, through a current sensing system, and out of the electricity meter again.
- An electronic circuit in the electricity meter detects the currents of the three current detection systems and calculates the energy consumed from the current and the phase, as is known, for example, from US Pat. No. 4,887,028.
- the currently cheapest production of a magnetic component for high-quality current transformers consists in the production of toroidal cores, in particular toroidal cores, and the winding of the isolated or encapsulated cores with the corresponding secondary winding on the basis of enameled copper wire.
- Cores suitable for this purpose are known, for example, from EP 1 131 830 and EP 1 129 459.
- EP 1 114 429 describes current transformers for such purposes.
- One way of constructing a current transformer is to select the size of the current transformer so that it is possible to pass through a bus bar, for example, the size of 19 x 2.5 mm through the inner hole of the current transformer.
- connection conductors with a rectangular cross section are used to connect the conductor in the form of known per se connectors.
- the conductor arrangement thus consists of three metal parts with mutually different cross-sections, wherein the two ends of the round conductor are to be fastened to the flattened surfaces of the rectangular connection conductors.
- Bonding is known by means of resistance spot welding or brazing.
- both methods require a complex process technology and a high energy input for each connection point to be created.
- a particular difficulty is the inspection of the connection points during production to ensure the quality of the conductor arrangement, since in particular welding in the sense of DIN ISO 9001 is to be classified as a so-called special process, as is the case in joining technology, welding technology. nik, DVS-Verlag, ISBN 3-87155-786-2, page 328, 2004, is known.
- Particularly critical are the effects of oxide layers on the connection partners, the wear of the electrodes as well as the missing possibility of a meaningful, for example optical or electrical testing of the connection.
- the object of the invention is to propose an inductive component, in particular for a current detection device and a method for producing such an inductive component, which provides a simple production with a secure connection and the lowest possible load of other components.
- an inductive component is provided with a current conductor with a non-rectangular cross section for conducting a current to be detected, at least one planar connecting conductor for supplying or discharging the current to be detected to or from the current conductor, the current conductor and the connecting conductor in the region of a connecting portion of the conductor to form a conductor arrangement are interconnected, and wherein the conductor in the region of the connecting portion has a flattened, in particular rectangular cross section and a flat surface of the connecting portion of the conductor is connected to a flat surface of the connecting conductor.
- the conductor is passed through the opening.
- the invention comprises a method for producing a conductor arrangement for an inductive component, in particular for use in a current detection device, in which a current conductor with non-rectangular cross-section is connected to a planar connection conductor, wherein the conductor in the cross section in a connecting portion of the conductor ( in particular with rectangular cross-section) is flattened, and the flattened connecting portion of the conductor is connected to the connecting conductor.
- an inductive component can be provided in which the cross section of the current conductor is formed away from the connecting section with an arcuate, in particular round, outer contour, in particular an oval or round cross-sectional shape.
- the inductive component can be designed with two connecting sections on the conductor for connecting the conductor to two connecting conductors.
- the compound may be formed as a press connection, in particular cold press connection.
- the press connection is designed as a clinching connection.
- the current conductor and the connecting conductor or conductors may be formed as metal parts made of copper or a copper alloy.
- the inductive component according to the invention can be, for example, a magnetic module for current detection.
- the magnetic module can be designed as a current transformer or transformer.
- a current transformer preferably has a toroidal core.
- the ring core is preferably designed as a ring band core.
- the ring core is formed of an amorphous or nanocrystalline alloy.
- the current conductor may have a deformation, in particular compression, for fixing and / or aligning in an opening of the current transformer with respect to the other cross section.
- connection points can be freed from metal oxides, purified and / or plasma-activated. Also advantageous is a current detection device, in which the current conductor, the connecting section and / or the connecting conductor are annealed by means of a heat treatment.
- connection is carried out as a press connection by means of a clinching technique.
- a method is preferably used in which contact points are freed from metal oxides before being combined with a chemical treatment, in particular pickling. The contact points can be cleaned and / or activated on the surface before being connected by means of a plasma treatment. Also advantageous is a method in which the current conductor, its connecting portion and / or the connecting conductor is annealed before joining by means of a heat treatment or are.
- the conductor arrangement thus represents a cost-optimized and long-term stable construction of power line rails.
- the current conductor with the non-rectangular cross section, in particular with a round or nearly round cross section on the one hand and on the other hand at least one connecting conductor with a flat surface, in particular - Especially connected a rectangular cross section with each other, which have a stable and durable connection.
- a press connection without the use of heat by, for example, soldering or welding
- heat is not transmitted to adjacent components of the toroidal core and the like via the conductor.
- the second connection between the current conductor and a second connection conductor can, for example before the insertion of the conductor in the opening of the current transformer or toroidal be created so that eventually only one such connection is required.
- a cold welding in conjunction with a riveted connection requires a high degree of deformation, so that advantageously a soft metal such as copper or a copper alloy is used.
- a cold welding connection can be further improved with regard to the electrical properties, for example minimum contact resistance and gas tightness.
- the so-called cold pressure welding offers the advantage of a welding process in which a connection is made completely, without externally supplied thermal energy by compressive force alone.
- the clinching represents a riveting, which advantageously without rivet, that is, without foreign materials manages by the material of one partner involved, for example, the conductor is pressed deep into a forming cavity in the other partner, such as the terminal conductor, wherein a mushroom-shaped Schusehneidung forms according to the shape of a press-stamp and a die, so that a positive and non-positive connection is achieved.
- connection technology and the structure of the conductor arrangement.
- a mechanically very robust connection is created.
- a simple manufacturing technique allows plant investment of only 30-50% compared to the corresponding welding / brazing technique. What is possible is a simple and inexpensive maintenance of the production equipment compared to the welding / brazing technique. Compared to the welding / brazing technique, when using a cold weld joint, no heating of the metal parts takes place, so that no separate
- Cooling is necessary to protect a Kunststoffüberberzug example of a current transformer. Vapors, sparks or chips are avoided. Quality assurance is possible by controlling simple mechanical dimensions, for example the thickness in the formed "rivet". Furthermore, the energy costs per connection point during manufacture are three to five times lower than in the welding / brazing technique. Compared to the point welding technique for the buttress joining technique, the cost per connection point is even taking into account the investment cost, the operating cost and the
- the conductor arrangement serves to transmit an electrical current, heating of the conductor arrangement by the current flow, in particular in the region of the connection points, must also be considered.
- the electrical resistance of a typical U-shaped busbar is about 100 ⁇ ohms.
- connection points do not represent a constriction of the cable cross-section.
- soldering or welding bridges are long-term stable, is therefore usually very uncertain.
- An arc occurring in the final stage of such a failure scenario can result in the complete interruption of the electrical connection.
- a low-resistance connection with simultaneously high mechanical strength must be required, so that the contact resistance due to vibration, vibration or shock during installation or in subsequent use does not appreciably increase.
- the current detection device offers a low-resistance connection with simultaneously high mechanical strength, which allows a permanent connection even in the case of heating occurring during operation when using a clinching.
- FIG. 1 individual manufacturing steps in the manufacture of an inductive component according to the invention
- Fig. 2 mounted components of an inductive component according to a first embodiment
- Fig. 3 mounted components of an inductance component according to a second embodiment; 4 shows a cross section through a clinching point; and
- Fig. 5 is an exemplary circuit arrangement known per se, in which such components can be used.
- a current conductor 1 shows, in various production steps, components of a current detection device, which will be described by way of example and by way of example for inductive components according to the invention.
- a current conductor 1 As the uppermost a current conductor 1 is shown, which, as shown in the middle, is passed through an opening 20 of a current transformer 2.
- the current conductor has a non-rectangular, in particular a round, cross-section.
- the cross section of the conductor 1 may also be slightly deformed in this area, for example slightly flattened or oval instead of circular, in order to engage with the wall of the opening 20 in clamping.
- conductors with other cross-sectional shapes can be used as circular cross-sectional shapes.
- cross sections in the form of an octet, square or optionally triangular or cross sections with wavy or serrated outer circumference can be used, which stand out clearly from a flat rectangular shape.
- connection section 3 of the conductor 1 has a substantially right square-shaped cross-section. In principle, however, other cross-sections which have a flattening on one side, for example also a flattening by material removal, can advantageously be implemented.
- Fig. 2 shows an output stage of a preferred conductor arrangement of the conductor 1 with connecting portions 3 at both ends, the current transformer 2, through the opening 20 of the current conductor 1 leads between its connecting sections 3, and with two connecting conductors 4, which as elongated, flat Plug pins are formed with a rectangular or substantially rectangular cross-section.
- the flattened connecting sections 3 with their flat surface are placed on the flat surface of the connecting conductors 4 and connected to one another.
- the connection can be made in any manner known per se, for example by soldering or welding. But especially preferred is a cold connection without the supply of heat by means of, for example, cold press welding and / or clinching.
- a guided through one of the two terminal conductor 4 and the corresponding connecting portion 3 in the conductor 1 current is passed through the opening 20 of the current transformer 2 and discharged through the second connecting portion 3 and the second terminal conductor 4.
- the current passed through the current transformer 2 induces in the current transformer 2 a current flow, which is conducted via lines 21 of an evaluation circuit for detecting the current flow.
- a conductor arrangement in which the two connecting portions 3 of the conductor 1 were generated from the originally round rod-shaped conductor 1 by pressing.
- the thickness of the rod is reduced and creates a flat surface.
- a connection technique based on the By clinching, the ends of the round bar and the rectangular terminal lugs formed by the terminal conductors 4 are connected to each other.
- the strong forming in the region of the connection points of the passage joining results in button-shaped rivets 5, so that a mechanically stable connection and good electrical contact for a secure current flow are produced by means of cold welding.
- 4 illustrates a cross-section through an exemplary connection of a connection section 3 and a connection conductor 4 produced by clinching.
- connection section 3 into the connection conductor 4 assumes a mushroom-shaped cross-section and forms an undercut Formation of a mechanically high stability in the manner of a rivet. Shown is the case of an 8 mm wide riveting by means of clinching, but also other dimensions can be selected according to the needs.
- FIG. 2 shows an embodiment with in each case a clinching point 5 for connecting the corresponding connecting section 3 to the adjacent connecting conductor 4.
- FIG. 3 shows a further embodiment of a conductor arrangement with likewise a current conductor 1 whose flattened connecting sections 3 are each connected to a connecting conductor 4, in each case two enforcement points are used for the connections. This creates a twist protection of the conductor 1 relative to the two connecting conductors. It is also sketched that the current conductor 1 does not necessarily have to lead straight from one connecting section 3 to the other connecting section 3, but can also have a bend.
- 5 shows an exemplary circuit arrangement of a current detection device 0 for detecting a current flow through three conductors Ll, L2, L3.
- a corresponding cable additionally has a neutral conductor N.
- the three conductors Ll, L2, L3 are interrupted and each end in a plug contact 6 for insertion of a contact pin in the form of the connecting conductor 4.
- Each of the conductors Ll, L2, L3 are thus associated with two female plug-in elements 6, in which the two connecting conductors 4 of the conductor arrangement according to, for example, Fig. 2 or Fig. 3 are inserted.
- the current conductor 1 which connects the two connection conductors 4 via the connection sections 3 leads through the corresponding opening of a current transformer 2, which may be formed, for example, as shown in FIG. 2 or FIG.
- three current transformers 2 are arranged and fastened on a circuit board with electronics for evaluation or current detection.
- the electronics are accommodated in a housing, from which correspondingly six such connecting conductors 4 protrude as contact pins for insertion into corresponding plug-in contact sockets 6 as well as a further connecting conductor as a contact pin for a connection to the neutral conductor N.
- such electronics also have one or more output devices for outputting the detected amount of current.
- the output device is a display device D. On the display device D or another external device
- Interfaces are output by means of signal processing and, where appropriate, analog / digital converters in the electronics recorded amounts of electricity.
- a current conductor system which serves for the measurement of electrical currents and is formed in particular of three metal parts and a current detection system.
- the current conductor system consists of a central part as the current conductor 1, which has a preferably round cross-section and in which after plugging the current transformer 2 as a current detection system at least one, in particular both its ends as a connecting section 3 flattened.
- the current conductor system consists of two further parts in the manner of the connecting conductor 4 with a rectangular cross-section for training twistedg connecting lugs or pins for a connector.
- the connection of the three parts takes place in particular as a cold press connection for forming a mechanically and electrically good connection.
- a cold press connection is preferably made twice on each side, in order to achieve an additional safeguard against twisting while increasing the connection cross-section.
- the current detection system preferably consists of a transformer-type current transformer.
- a current transformer is preferably a toroidal core, in particular a toroidal core formed as a toroidal core made of an amorphous or nanocrystalline alloy.
- the round metal rod forming the current conductor 1 preferably has a deformation, in particular a slight compression, in the middle region or in the region which is passed through the opening 20 of the current transformer 2, as a result of which the current transformer 2 is plugged onto the current conductor 1 in FIG fixed a desired position and thus secured.
- the contact points are advantageously removed before joining, in particular before the clinching, with a chemical treatment such as pickling of metal oxides.
- the contact points are cleaned or activated before the clinching or other connection, for example, with a treatment in a plasma on the surface. It is also advantageous to soft anneal the metal parts before the clinching by a heat treatment.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004058452A DE102004058452A1 (de) | 2004-12-03 | 2004-12-03 | Stromerfassungseinrichtung und Verfahren zum Herstellen einer solchen Stromerfassungseinrichtung |
PCT/EP2005/012850 WO2006058750A1 (de) | 2004-12-03 | 2005-12-01 | Induktives bauelement und verfahren zum herstellen eines solchen induktiven beuelements |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1817781A1 true EP1817781A1 (de) | 2007-08-15 |
EP1817781B1 EP1817781B1 (de) | 2014-10-29 |
Family
ID=35610130
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05816200.9A Expired - Fee Related EP1817781B1 (de) | 2004-12-03 | 2005-12-01 | Induktives bauelement und verfahren zum herstellen eines solchen induktiven beuelements |
Country Status (5)
Country | Link |
---|---|
US (1) | US7692526B2 (de) |
EP (1) | EP1817781B1 (de) |
CN (1) | CN101069251B (de) |
DE (1) | DE102004058452A1 (de) |
WO (1) | WO2006058750A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112164567A (zh) * | 2020-10-27 | 2021-01-01 | 衡阳华瑞电气有限公司 | 一种户外型电流互感器用快装机构及其快装方法 |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006059384B4 (de) * | 2006-12-15 | 2013-02-21 | Siemens Aktiengesellschaft | Gerät mit einem Stromwandler zur Erfassung eines durch einen Stromleiter fließenden Stromes sowie Klemmen-/Stromwandler-Modul für ein derartiges Gerät |
DE102007037058B4 (de) * | 2007-08-03 | 2015-07-30 | Siemens Aktiengesellschaft | Stromwandlermodul für ein Energie- und/oder Leistungsmessgerät sowie Energie- und/oder Leistungsmessgerät mit Stromwandlermodul |
DE102008051561B4 (de) | 2008-10-14 | 2013-06-20 | Vacuumschmelze Gmbh & Co. Kg | Verfahren zum Herstellen einer Stromerfassungseinrichtung |
DE102009000827A1 (de) | 2009-02-13 | 2010-08-19 | Robert Bosch Gmbh | Vorrichtung und Verfahren zum Verbinden zumindest zwei elektrischer Anschlüsse |
US20100306999A1 (en) * | 2009-06-05 | 2010-12-09 | Szu-Chi Huang | Current terminal structure |
DE102010004223B4 (de) | 2010-01-08 | 2013-12-05 | Vacuumschmelze Gmbh & Co. Kg | Verfahren zum Herstellen einer Stromerfassungseinrichtung |
JP5533441B2 (ja) | 2010-08-26 | 2014-06-25 | 株式会社オートネットワーク技術研究所 | 電流検出装置及びその製造方法 |
CN102231320B (zh) * | 2011-04-15 | 2013-07-17 | 安徽千恩智能科技股份有限公司 | 电子式圆形电能表用大电流互感器及其生产方法 |
JP2012242203A (ja) * | 2011-05-18 | 2012-12-10 | Auto Network Gijutsu Kenkyusho:Kk | 電流検出装置 |
JP2012255725A (ja) * | 2011-06-09 | 2012-12-27 | Sumitomo Wiring Syst Ltd | 電流検出装置 |
JP2013015425A (ja) * | 2011-07-05 | 2013-01-24 | Sumitomo Wiring Syst Ltd | 電流検出装置 |
JP2013015431A (ja) * | 2011-07-05 | 2013-01-24 | Sumitomo Wiring Syst Ltd | 電流検出装置 |
BR112012030259B1 (pt) * | 2011-08-12 | 2021-12-21 | Zhejiang Yongtailong Electronic Co., Ltd | Estrutura de conexão de um dispositivo com o conector e método de conexão do dispositivo com o conector |
DE102012202999B4 (de) * | 2012-02-28 | 2021-05-06 | Lisa Dräxlmaier GmbH | Verbindung zwischen elektrisch leitenden Bauteilen |
CN103943343B (zh) * | 2013-01-22 | 2016-08-17 | 上海雷博司电气股份有限公司 | 用于环网柜的电流互感器 |
JP6187420B2 (ja) * | 2014-09-11 | 2017-08-30 | 中国電力株式会社 | 変流器 |
DE102015205632A1 (de) * | 2015-03-27 | 2016-09-29 | Siemens Aktiengesellschaft | Stromwandler und Strommesseinrichtung |
JP2020134191A (ja) * | 2019-02-14 | 2020-08-31 | 三菱電機エンジニアリング株式会社 | 特性計測装置 |
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US2246167A (en) * | 1940-03-16 | 1941-06-17 | Gen Electric | Transformer |
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2004
- 2004-12-03 DE DE102004058452A patent/DE102004058452A1/de not_active Withdrawn
-
2005
- 2005-12-01 EP EP05816200.9A patent/EP1817781B1/de not_active Expired - Fee Related
- 2005-12-01 WO PCT/EP2005/012850 patent/WO2006058750A1/de active Application Filing
- 2005-12-01 CN CN200580041584.6A patent/CN101069251B/zh not_active Expired - Fee Related
-
2007
- 2007-05-23 US US11/752,581 patent/US7692526B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
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See references of WO2006058750A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112164567A (zh) * | 2020-10-27 | 2021-01-01 | 衡阳华瑞电气有限公司 | 一种户外型电流互感器用快装机构及其快装方法 |
Also Published As
Publication number | Publication date |
---|---|
US7692526B2 (en) | 2010-04-06 |
EP1817781B1 (de) | 2014-10-29 |
WO2006058750A1 (de) | 2006-06-08 |
DE102004058452A1 (de) | 2006-06-08 |
CN101069251B (zh) | 2011-07-13 |
CN101069251A (zh) | 2007-11-07 |
US20080048815A1 (en) | 2008-02-28 |
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