EP1517342A2 - Transformateur, en particulier transformateur de securité dans des boítiers encastrables - Google Patents

Transformateur, en particulier transformateur de securité dans des boítiers encastrables Download PDF

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Publication number
EP1517342A2
EP1517342A2 EP04022056A EP04022056A EP1517342A2 EP 1517342 A2 EP1517342 A2 EP 1517342A2 EP 04022056 A EP04022056 A EP 04022056A EP 04022056 A EP04022056 A EP 04022056A EP 1517342 A2 EP1517342 A2 EP 1517342A2
Authority
EP
European Patent Office
Prior art keywords
transformer
coil
cover
coil windings
plates
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Withdrawn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
EP04022056A
Other languages
German (de)
English (en)
Other versions
EP1517342A3 (fr
Inventor
Giancarlo Lely
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.)
Comatec SNC
Original Assignee
Comatec SNC
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 Comatec SNC filed Critical Comatec SNC
Publication of EP1517342A2 publication Critical patent/EP1517342A2/fr
Publication of EP1517342A3 publication Critical patent/EP1517342A3/fr
Withdrawn legal-status Critical Current

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    • 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
    • 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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
    • H01F27/266—Fastening or mounting the core on casing or support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/04—Arrangements of electric connections to coils, e.g. leads
    • H01F2005/043—Arrangements of electric connections to coils, e.g. leads having multiple pin terminals, e.g. arranged in two parallel lines at both sides of the coil
    • 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
    • H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
    • H01F2027/065—Mounting on printed circuit boards
    • 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
    • H01F27/24—Magnetic cores
    • H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented

Definitions

  • the present invention relates to a transformer, in particular Safety transformer for providing a safety voltage for the supply of bells, door locks, intercoms, sensors, Building automation devices and the like, with a primary Coil winding, a secondary coil winding, one at least partially in the interior of the coil windings cross iron core Stacked transformer plates and laterally stacked Transformer sheets arranged connection elements for connection the coil windings.
  • a transformer in particular Safety transformer for providing a safety voltage for the supply of bells, door locks, intercoms, sensors, Building automation devices and the like, with a primary Coil winding, a secondary coil winding, one at least partially in the interior of the coil windings cross iron core Stacked transformer plates and laterally stacked Transformer sheets arranged connection elements for connection the coil windings.
  • the size of the transformer is in particular by the size of Transformer sheets given, which are also in standard sizes for To be available.
  • transformers of the form EI would be to achieve a maximum power of 15 W the size EI42 or EI48 required, that is, transformer sheets where the side edge length 42 x 35 mm or 48 x 40 mm.
  • the coil windings required connection elements and the above to be arranged protective hood results in a size of the transformer, which makes it impossible to transform the transformer into a commercial one Flush-mounted box with a diameter of 60 mm and a height of 50 mm mm.
  • the invention is based on the object, a transformer of the above specified type, which also at a maximum power of 15 W has such small dimensions that it is in a commercially available flush-mounted box can be installed.
  • the outer dimensions of the Transformer sheets are chosen to be much smaller than the outer dimensions of transformer sheets that are for the desired maximum Power would be required that the transformer including the Terminals in a standard housing with a fixed diameter or fixed base, in particular in a standard flush-mounted box, is insertable and that the height of the stack of transformer sheets and the height of the coil windings opposite that for the selected ones Transformer sheets usual height increased by as much that results in the desired maximum power of the transformer.
  • transformer sheets of a smaller Size as required per se for the desired performance and on the other hand the higher winding of the coils and higher stacking of the smaller ones Transformer sheets can be created transformers, the outer dimensions of which have a value indicating the installation of the Transformer including the connection elements and a cover in commercial flush-mounted boxes allows.
  • This is going on the invention exploits the knowledge that in commercial flush-mounted boxes in height there is still room available to the height of the Transformers compared to the selected transformer plates to increase the usual height.
  • the standard transformer plates the size 38.4 standard stack height of 20 mm 30 mm can be increased. With the correspondingly higher coil windings Thus, a maximum power of 15 W can be achieved become.
  • the two coil windings are each in a separate Chamber of an insulating housed.
  • the accommodation of the two coil windings in separate chambers allows compliance standard clearances and creepage distances between primary and secondary coil winding, in particular compliance with the EU standard EN61558-1.
  • a transformer with a maximum power of 15 W in one Standard flush box can be installed.
  • the transformer thereby changes the appearance of the relevant Room not.
  • the transformer plates are preferably up to a height of about 30 mm on each other stacked and the coil windings are carried out correspondingly high. Such a height has to do with the realization of a transformer maximum power of 15 W proved to be suitable.
  • the two chambers for the coil windings are preferred formed that the two coil windings next to each other on one common bobbins are arranged and that on the bobbin a coil cover is attached, which together with the coil carrier between the two chambers a labyrinthine partition forms, so that the creeping distance between the two chambers has a required minimum length.
  • the training of the chambers with a placed on the bobbin cover facilitates the production of the transformer and is therefore inexpensive.
  • the coil carrier between the two coil windings a double wall, in which the coil cover with a correspondingly arranged simple wall engages.
  • the coil cover formed in two parts, with a three sides of the bobbin comprehensive Coil cover and a cover arranged on the fourth side. This also simplifies the manufacture of the transformer since the bobbin hood from one side onto the bobbin with the coil windings deferred and then the two chambers through Placing the lid can be closed. Another simplification results from a clipped onto the bobbin hood design of the lid.
  • the coil carrier wiest two more parallel to the double wall walls on the two of each other opposite sides of the two coil windings, which with are covered by the coil cover little play. So can too towards the outside, a long air and creepage distance are reached so that additional insulation measures are dispensable to comply with corresponding requirements.
  • the structure is also hereby simplified and accordingly the costs are reduced.
  • the connecting elements for connecting the coil windings are the Further preferably arranged and designed such that the connection cable based on the stack of stacked transformer sheets of below and / or from above into the blocks are insertable. This can further space can be saved, since no lateral accessibility required is. The installation in a standard flush-mounted box can thereby continue be relieved.
  • connection elements from below and / or operable from above.
  • This also lateral space is Saved and the possibility to install in a standard flush box facilitated.
  • connection boards provided, which preferably on the side facing away from the actuating side the connection elements are arranged. This results in a skillful Structure that ensures easy production in a small footprint.
  • a thermal fuse is provided under the Coil cover in one of the two chambers, in particular in the Chamber of the primary coil winding is arranged. This arrangement saves space and also has the advantage that also for the thermal fuse complied with the standard air and creepage distances can be.
  • the outer hood corresponds.
  • the outer hood engages between the connecting elements and the Package of transformer sheets, with an air and creepage distance required length is formed. This is also in the circumferential direction Space saved at least in the size of the material thickness and at the same time also between the terminals and the iron core required clearances and creepage distances.
  • a cover which the bottom of the transformer core and in particular covers the connection boards.
  • the transformer core is through well protected.
  • the transformer shown in Fig. 1 which in particular as a safety transformer for providing a safety voltage to Supply of bells, door locks, intercoms, sensors, devices the building automation and the like may be formed comprises a transformer core 1 of a plurality of stacked stacked transformer sheets 2 type EI, whose E-shaped part sheets 2a from layer to layer alternately with their free legs 3a, b, c arranged alternately pointing in one direction and the other are.
  • the I-shaped part 2b of the transformer plates 2 is corresponding also alternately on the side of the ends of the free legs 3a, b, c arranged.
  • the transformer plates 2 in the opening 4 'of a bobbin 4 shown in Fig. 2, on the a primary coil winding 5 and a secondary coil winding 6 are wound side by side.
  • the bobbin 4 has a double wall 7 with two part walls 7a, 7b, which run parallel to the plane of the coil windings 5, 6.
  • the bobbin 4 has two more to the double wall. 7 parallel walls 8, 9 on the two sides facing away from each other two coil windings 5, 6 on.
  • the double wall 7 and the side walls 8, 9 are each guided around the bobbin 4, wherein the two Go over side walls 8, 9 on the lower narrow side in paragraphs 10, 11, consisting of individual fingers 10 ', 11', in each of which a Pin 12, 13 is added.
  • the connecting pins 12, 13 are with their lower end over the paragraphs 10, 11 above and are with their upper end respectively connected to one end of a coil winding 5, 6.
  • a coil cover 14 is placed, the shape to the shape of the bobbin 4 including the walls 7, 8 and 9 and paragraphs 10 and 11. That is, the hood 14 surrounds the two outer walls 8, 9 of the bobbin 4 with low Game.
  • the bobbin hood 14 has one on its inside circumferential rib 15 on which between the two walls 7a, b of the Double wall 7 engages.
  • the paragraphs 10, 11 of the bobbin are from corresponding paragraphs 16, 17 of the coil cover 14 embraced. After all has the bobbin hood 14 one of the opening 4 'of the bobbin corresponding opening 14 'on.
  • a lid 18 clipped, angled on two sides upwards is formed and with these two angled sections 19, 20 surrounds the lower portion of the coil cover 14.
  • points the lid 18 has an upwardly projecting rib 21, which on the Bottom between the two partial walls 7a, 7b of the double wall 7 of the Spool carrier 4 engages.
  • the two coil windings 5, 6 covered on all sides and reaches all around between the two partial walls 7 a, b a rib 15, 21 a, so that the coil windings 5, 6 in Chambers 5 ', 6' are arranged and between the two coil windings 5, 6 a labyrinthine creepage and creepage distance is formed.
  • the side walls 8, 9 and the coil cover 14 on all sides the coil windings 5, 6 each have a labyrinthine creepage and clearance educated.
  • the transformer further comprises an outer hood 22 which is mounted on the Transformer core 1 is placed from above.
  • the outer hood 22 has in its upper side a recess 23 which from the upper end the coil cover 14 is penetrated. In this way can height be saved.
  • connection elements 24 On two opposite sides of the transformer core 1, but outside the hood 22 are two connecting elements formed as blocks 24 is provided, each having two insertion openings 25 for Connection wires and two actuators 25 'for associated terminals exhibit.
  • connection boards 26 On the underside of the connection elements 24 are connection boards 26 arranged with their one end up extend under the transformer core 1, so that the pins 12, 13 the bobbin 4 in corresponding receptacles 27 of the circuit boards 26th can intervene. In further recordings 28 of the circuit boards 26 engage not shown here pins of the connection elements 24 a.
  • the outer hood 22 corresponding Recesses 29 in the associated side walls.
  • the Sidewalls are pulled down so far that between the terminals and connection cables on the one hand and the transformer 1 on the other hand complied with the required clearance and creepage distances become.
  • the underside of the transformer core 1 is also still covered by a cover 30, with angled side walls 31 surrounds the outer hood 22 and with projections 32 a in corresponding recesses 33 of the outer hood 22 is engaged. Of the Transformer is thus closed on all sides.
  • the cover 30 serves in the variant of Fig. 1 simultaneously instead the cover 18 of the variant of Fig. 2 as a cover for the coil windings 4, 5.
  • the cover 30 also has one after above projecting rib 21, which between the two partial walls 7a, 7b the double wall 7 of the bobbin 4 engages. With protrusions 32b the cover 30 in corresponding recesses of the coil cover 14th clipped.
  • the transformer core 1 uses transformer plates 2 of size EI38, that is transformer plates 2 with a longitudinal side 1 of 38.4 mm and a narrow side s of 32 mm.
  • the package height h is 30 mm.
  • the transformer is of these dimensions can be used in a standard flush-mounted box 34, which has a free inner diameter D of 60 mm and a height H of 50 mm.
  • D free inner diameter
  • H height
  • Due to the package height of 30 mm and correspondingly high-wound Coil windings 5, 6 can be a transformer with a maximum Power of 15 W using transformer plates of the Size EI38 can be made.
  • a transformer in a standard flush box 34 are housed.
  • the transformer can be arranged visually appealing in a room.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulating Of Coils (AREA)
  • Coils Of Transformers For General Uses (AREA)
EP04022056A 2003-09-19 2004-09-16 Transformateur, en particulier transformateur de securité dans des boîtiers encastrables Withdrawn EP1517342A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003143489 DE10343489A1 (de) 2003-09-19 2003-09-19 Transformator, insbesondere Sicherheitstransformator zum Einbau in Unterputzdosen
DE10343489 2003-09-19

Publications (2)

Publication Number Publication Date
EP1517342A2 true EP1517342A2 (fr) 2005-03-23
EP1517342A3 EP1517342A3 (fr) 2007-05-09

Family

ID=34177847

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04022056A Withdrawn EP1517342A3 (fr) 2003-09-19 2004-09-16 Transformateur, en particulier transformateur de securité dans des boîtiers encastrables

Country Status (2)

Country Link
EP (1) EP1517342A3 (fr)
DE (1) DE10343489A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105390255A (zh) * 2015-11-05 2016-03-09 苏州腾冉电气设备股份有限公司 一种漏磁变压器线圈
WO2025261637A1 (fr) * 2024-06-17 2025-12-26 Pfisterer Kontaktsysteme Gmbh Dispositif de recouvrement

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015202662A1 (de) * 2015-02-13 2016-08-18 Continental Automotive Gmbh Elektrisches Bauelement

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1827349U (de) * 1960-09-30 1961-02-23 Siemens Ag Elektrisches laeutewerk.
DE2250394A1 (de) * 1971-12-29 1973-07-05 Dc Pack Co Ltd Elektromagnetische induktionsvorrichtung
DE2326126C2 (de) * 1972-05-30 1983-11-03 Tabuchi Denki K.K., Osaka Kleintransformator für hohe Spannung
DE3309109C2 (de) * 1983-03-15 1985-06-20 Schwabe GmbH & Co KG Elektrotechnische Fabrik, 7067 Urbach Drossel, Kleintransformator od. dgl. Gerät
DE8421786U1 (de) * 1984-07-20 1984-10-31 Siemens AG, 1000 Berlin und 8000 München Anschlußklemme
DE3800861A1 (de) * 1988-01-14 1989-07-27 Jakob Licht Elektrische anschlussdose
US5245497A (en) * 1990-07-31 1993-09-14 Nippon Desan Corporation Transformer
DE4324058C2 (de) * 1993-07-17 2003-10-16 Kaiser Gmbh & Co Kg Hohlkörper für die Elektroinstallation
DE4341099A1 (de) * 1993-12-02 1995-06-08 Merten Gmbh & Co Kg Geb Anschlußeinrichtung für die Gebäudesystemtechnik
DE9319388U1 (de) * 1993-12-16 1994-06-16 Karl Weiss GmbH, 84381 Johanniskirchen Spulenkörper- und Gehäuse-System für einen Kleintransformator
DE19607714A1 (de) * 1996-02-29 1997-09-04 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Transformator
DE10119575A1 (de) * 2001-04-22 2002-10-24 Guenter R J Kullik Stecker - Transformator - Dimmer
DE10160736B4 (de) * 2001-12-11 2004-07-29 Kaiser Gmbh & Co. Kommanditgesellschaft Hohlwanddose aus Kunststoff
DE10216093C1 (de) * 2002-04-11 2003-10-23 Ritto Gmbh & Co Kg Wohnungsstation für eine Tür-Kommunikationsanlage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105390255A (zh) * 2015-11-05 2016-03-09 苏州腾冉电气设备股份有限公司 一种漏磁变压器线圈
WO2025261637A1 (fr) * 2024-06-17 2025-12-26 Pfisterer Kontaktsysteme Gmbh Dispositif de recouvrement

Also Published As

Publication number Publication date
EP1517342A3 (fr) 2007-05-09
DE10343489A1 (de) 2005-04-14

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