EP1901318A2 - Dispositif de montage d'un noyau sans vis - Google Patents

Dispositif de montage d'un noyau sans vis Download PDF

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Publication number
EP1901318A2
EP1901318A2 EP07013088A EP07013088A EP1901318A2 EP 1901318 A2 EP1901318 A2 EP 1901318A2 EP 07013088 A EP07013088 A EP 07013088A EP 07013088 A EP07013088 A EP 07013088A EP 1901318 A2 EP1901318 A2 EP 1901318A2
Authority
EP
European Patent Office
Prior art keywords
mounting device
core element
webs
holes
mold
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.)
Withdrawn
Application number
EP07013088A
Other languages
German (de)
English (en)
Other versions
EP1901318A3 (fr
Inventor
Frank Clasen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Block Transformatoren Elektronik GmbH
Original Assignee
Block Transformatoren Elektronik GmbH
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 Block Transformatoren Elektronik GmbH filed Critical Block Transformatoren Elektronik GmbH
Publication of EP1901318A2 publication Critical patent/EP1901318A2/fr
Publication of EP1901318A3 publication Critical patent/EP1901318A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • H01F27/02—Casings
    • H01F27/04—Leading of conductors or axles through casings, e.g. for tap-changing arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F30/00—Fixed transformers not covered by group H01F19/00
    • H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure

Definitions

  • the present invention relates to a mounting device for a coil device having a magnetically conductive core element, in particular for a transformer or a choke, for clamping the core element to the coil device. Furthermore, the invention relates to a coil device, in particular a transformer or a throttle.
  • Known mounting devices with which connecting elements, so in particular terminals for connecting external supply lines to the coil windings of the coil device can be attached to the coil device are usually formed as a single metal rails and are by means of screws and nuts on the core element, ie for example in a Transformer to the transformer core, mounted.
  • the core element has for this purpose through holes, through which the screws are completely passed and attached at the other end by means of nuts to the core element.
  • the screws also serve to clamp the core element, which is usually constructed from individual sheets.
  • the screws Due to the position of the screws in the core element, a current can flow in the screws during operation of the coil device, which leads to additional heat losses. To prevent this, the screws are usually costly electrically isolated from the core element by the screws and / or the holes by additional measures (eg insertion of an insulating sleeve into the hole, using special, electrically non-conductive screws, ...) are electrically isolated ,
  • the invention has for its object to provide a mounting device for a magnetically conductive core element having coil device for clamping the core element, with which the occurring in the known mounting device problem of additional heat losses is eliminated.
  • a mounting device specified in claim 1 which is characterized in that the mounting device has two moldings to be attached to opposite sides of the core element and that the mold parts each have at least one web for introduction into corresponding, mounted in the core element holes, wherein the webs are configured and arranged so that when mounted on the coil assembly device webs of different moldings do not touch.
  • the invention is based on the knowledge to forego the occurring for the known mounting device additional heat losses causal, guided by holes in the core element screws and to solve the attachment of the mounting device to the coil device completely different.
  • two molded parts are used, which are designed so that they can be attached to opposite sides of the core element and preferably enclose the core element from the outside.
  • These moldings have webs which protrude into the bores of the core element, wherein the webs are configured and arranged such that in the assembled state webs of different shaped parts, ie in particular from opposite sides into the bore projecting webs, do not touch.
  • the mounting device according to the invention is nevertheless simple in design, can be easily and inexpensively manufactured and easily mounted on the coil device.
  • the mold parts are designed so that they each enclose about half of the core element and that they have at the points of contact fastening means for mutual connection and attachment, in particular holes for receiving mounting screws.
  • the two mold parts are screwed together at the contact points by means of mounting screws, wherein the core element is pressed. Furthermore, thereby slipping of the mounting device can be prevented on the core element.
  • the mounting device is further preferably designed such that crane eyelets are arranged at the contact points of the mold elements for transporting the coil device.
  • the mounting device according to the invention can also be used for the purpose of transporting the coil device, which can weigh several kilograms in larger dimensions, by means of crane eyes, as in particular by the projecting into the holes webs and the core element firmly enclosing moldings Supporting forces absorbed and slipping relative to the coil device can be prevented.
  • the webs are attached to the first mold element at other locations than the webs on the second mold element.
  • the webs can also be made longer, so that they protrude almost completely through the respective corresponding bore, Of course, the webs are not so long that they touch the opposite molding.
  • the webs can also accommodate correspondingly larger load capacities.
  • the length of the webs is less than half the thickness of the core element in the direction of the holes in the core element.
  • a web can basically protrude into each bore from each side, without the webs touching each other.
  • the lengths of the webs can also be designed differently and / or differently, as long as it is ensured that the protruding from different directions in the same bore webs do not touch.
  • At least one mold element has a ground connection, so that no longer, as in the known mounting device, an additional ground terminal must be mounted on the metal rail.
  • At least one molded part has connecting elements for the fixed, detachable attachment of connecting elements, in particular connecting terminals.
  • the molding performs a dual purpose.
  • connection elements are designed as holes for latching terminals, so that the connection elements can be mounted against slipping on the molded part with the connection elements.
  • connection elements are designed such that the connecting elements in the assembled state can not be moved laterally, which is still possible in the known mounting device and which often leads to tearing off of connections to the connecting elements.
  • the connecting elements are often laboriously fixed in the known mounting device, for example, by mechanical deformation of the metal rail or by using adhesive material. All this is eliminated in this development of the mounting device according to the invention.
  • the invention also relates to a coil device, in particular a transformer and a choke, with a magnetically conductive core element, at least one coil winding and a mounting device of the type described above according to the invention.
  • FIGs 1A and 1B a known mounting device in the assembled state or in exploded view is shown.
  • the core element 1 here a transformer core
  • the mounting device is mounted.
  • three through holes 3 are passed through the yoke 2
  • This can basically lead to heat losses, since during operation by the screws basically a current can flow. Therefore, it is basically necessary to electrically insulate the screws 10 from the core element 1, for example by using special, electrically insulated screws, which causes additional expense, in particular additional costs. Despite this, heat losses can occur even if not performed properly.
  • the metal rail 11 often has a height of 10 mm or a groove of 10 mm from the edge of the yoke 2 of the core element 1. These 10mm thus correspond exactly to the required locking dimension standardized fasteners, here for example transformer terminals 13 for connecting external (not shown) connecting lines with the coil windings (not shown).
  • transformer terminals 13 for connecting external (not shown) connecting lines with the coil windings (not shown).
  • the terminals 13 can move laterally, causing the terminals attached to the terminals tear off and it can come to failures.
  • the terminals 13 are often laboriously fixed, for example by mechanical deformation of the rail 11 or by the use of adhesives.
  • an additional ground terminal 14 must be separately mounted on the rail 11 for connection of a grounding line. Furthermore, the wound on the legs of the transformer core 1 coils 4 are also recognizable.
  • FIGS. 2A and 2B show a mounting device according to the invention in the mounted state or in an exploded view. Recognizable in turn of the coil device of the transformer core 1, in whose upper yoke 2, three through holes 3 are located. Here too, the coils 4 wound up on the legs of the transformer core 1 are already recognizable.
  • the mounting device essentially comprises two mold parts 20, 21, which are designed such that they enclose the upper side of the yoke 2 of the transformer core 1.
  • Both mold parts 20, 21 have in the embodiment shown a number of holes 3 corresponding number of webs 22.
  • These webs 22 are formed and attached at such locations on the mold parts 20, 21 that they protrude when mounting the mold parts 20, 21 on the transformer core 1 in the holes 3.
  • the length of the webs 22 is selected so that the webs of the molded part 20 and the webs of the molded part 21 do not touch in the assembled state, whereby current flow through the webs during operation of the coil device is prevented.
  • An elaborate insulation, as required for the screws 10 in the known mounting device, can in the mounting device according to the invention between the webs 22 and the holes 3 and the transformer core 1 omitted.
  • the mold parts 20, 21 are further designed so that they touch at their ends 23, 24 and are mounted together there by means of two simple mounting screws 25, which may be uninsulated. As a result, a certain jamming of the moldings is achieved with the transformer core 1 in order to prevent slippage of the mounting device relative to the transformer core as possible.
  • the molded part 21 is formed on its side facing away from the transformer core 1 side length as lying parallel to the top of the yoke 2 rail 26 with holes 27 at the front folded edge.
  • This rail 26 with the holes 27 serves as a connection element for the fixed, releasable attachment of the terminals 13, which can be locked in this embodiment slip-proof. Additional measures to prevent slippage of the terminals, as required in the known mounting device is no longer necessary in this embodiment.
  • a grounding connection 28 for the coil device is already integrated in the molded part 21.
  • By additionally introduced holes 29 in the molding 21 also more attachments can also be easily mounted.
  • holes 30 are incorporated in the illustrated embodiment at the ends 23, 24 of the mold parts 20, 21. These can be used as crane eyelets, i.a. for transporting the coil device serve. The projecting into the holes 3 webs 22 take on a large part of the load-bearing forces.
  • the mounting device according to the invention can also be produced easily and inexpensively, is easy to assemble and offers more advantages.
  • the connecting elements, in particular terminals are mounted easily and securely against slipping, the mounting device can also be used to transport the coil device, and it can be easily mounted more components.
  • the connecting webs can also be configured differently in terms of their shape, number and arrangement, it being ensured in all embodiments that webs do not touch within the holes in the core element.
  • the invention is not limited to application to a transformer, but can basically be applied to all coil devices which have a magnetically conductive core and in which the problem of heat loss due to core-passing mounting members may occur.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Housings And Mounting Of Transformers (AREA)
EP07013088A 2006-09-12 2007-07-04 Dispositif de montage d'un noyau sans vis Withdrawn EP1901318A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610042706 DE102006042706B4 (de) 2006-09-12 2006-09-12 Kernschraubenlose Montagevorrichtung

Publications (2)

Publication Number Publication Date
EP1901318A2 true EP1901318A2 (fr) 2008-03-19
EP1901318A3 EP1901318A3 (fr) 2009-09-23

Family

ID=38795586

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07013088A Withdrawn EP1901318A3 (fr) 2006-09-12 2007-07-04 Dispositif de montage d'un noyau sans vis

Country Status (2)

Country Link
EP (1) EP1901318A3 (fr)
DE (1) DE102006042706B4 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102082021B (zh) * 2009-11-30 2012-02-22 成都深蓝高新技术发展有限公司 六孔铁心的三相电抗器
CN103662386A (zh) * 2013-12-20 2014-03-26 保定天威保变电气股份有限公司 一种换流变压器运输梁结构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB772137A (en) * 1954-12-29 1957-04-10 T S Skillman And Company Pty L Improvements in electrical transformers and other cored coils
WO1993009584A1 (fr) * 1991-11-01 1993-05-13 Neolite Neon Company Pty Limited Dispositif de controle en circuit ouvert
DE19945817A1 (de) * 1999-09-20 2001-04-12 Hager Electro Gmbh Anschlußleiste
EP1808872A2 (fr) * 2006-01-17 2007-07-18 Gbe S.R.L. Système de serrage, compactage et levage pour transformateurs électriques et réacteurs

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7132264U (de) * 1971-08-24 1972-01-27 Eberle Kg Spulenkoerper od. dgl. fuer transformatoren
DE9004387U1 (de) * 1990-04-17 1990-06-21 R. Schmidt Gmbh, 57368 Lennestadt Spulenkörper aus Kunststoff
DE19508695B4 (de) * 1995-03-02 2004-03-25 Wago Verwaltungsgesellschaft Mbh Trafoklemme
US5703558A (en) * 1995-03-10 1997-12-30 Acme Electric Corporation Combined terminal block mount and lamination stack keeper

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB772137A (en) * 1954-12-29 1957-04-10 T S Skillman And Company Pty L Improvements in electrical transformers and other cored coils
WO1993009584A1 (fr) * 1991-11-01 1993-05-13 Neolite Neon Company Pty Limited Dispositif de controle en circuit ouvert
DE19945817A1 (de) * 1999-09-20 2001-04-12 Hager Electro Gmbh Anschlußleiste
EP1808872A2 (fr) * 2006-01-17 2007-07-18 Gbe S.R.L. Système de serrage, compactage et levage pour transformateurs électriques et réacteurs
ITVI20060018A1 (it) * 2006-01-17 2007-07-18 Gbe Srl Sistema di serraggio, compattazione e sollevamento per trasformatori e reattori elettrici

Also Published As

Publication number Publication date
DE102006042706A1 (de) 2008-04-03
EP1901318A3 (fr) 2009-09-23
DE102006042706B4 (de) 2008-12-18

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