EP0352592A1 - Appareil d'alimentation en courant électrique pour dispositifs électroniques - Google Patents

Appareil d'alimentation en courant électrique pour dispositifs électroniques Download PDF

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Publication number
EP0352592A1
EP0352592A1 EP89113089A EP89113089A EP0352592A1 EP 0352592 A1 EP0352592 A1 EP 0352592A1 EP 89113089 A EP89113089 A EP 89113089A EP 89113089 A EP89113089 A EP 89113089A EP 0352592 A1 EP0352592 A1 EP 0352592A1
Authority
EP
European Patent Office
Prior art keywords
primary
electronic devices
plane
core
power supply
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Withdrawn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
EP89113089A
Other languages
German (de)
English (en)
Inventor
José Luis del Valle El Cid
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0352592A1 publication Critical patent/EP0352592A1/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Withdrawn legal-status Critical Current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
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14—Inductive couplings

Definitions

  • the invention relates to a power supply device for electronic devices with a mains transformer connected to the supply network on the primary side and to the supply network on the secondary side via further switching elements.
  • the operating voltages in the low volt range required for electronic devices are supplied by power supply devices.
  • power supply devices In process automation, such electronic devices are often used in potentially explosive environments. Care must be taken that sparking cannot occur when switching.
  • the connection or disconnection of a power supply device or consumer to or from its feed network was previously carried out in such a way that the feed current was switched off or on from outside before or after the connection with terminals or plugs between the power supply device and feed network was established. To do this, entire system parts had to be switched off, and the disconnection process on the power supply unit was relatively labor-intensive.
  • the invention solves the problem of creating a power supply device which can be connected to or disconnected from the network in a simple manner even in an explosive environment.
  • the power supply device 1 consists in a known manner of a network transformer 2 with a frame core, the primary winding 3 of which is fed from the network with 220 V alternating current.
  • the Secondary winding 4 supplies, via a rectifier 5 and a current or voltage limiting circuit 6, an output voltage of 24 V DC required for the operation of the electronic devices.
  • the core of the network transformer 2 is separated in a plane a - a 'lying between the primary and secondary sides, so that it consists of two mirror images of the separation plane a - a 'arranged U-shaped parts 7 and 7' with smooth end faces.
  • the core part 7 carrying the primary winding 3 ' can be moved on guide elements 8, 8', for example guide rails or bolts, perpendicular to the parting plane a - a '.
  • the movable core part 7 ' is brought up to the fixed core part 7, so that a practically air gap-free iron path is formed for the magnetic flux.
  • the primary-side core part 7 ' is removed from the rest of the circuit after the solution of mechanical fastening means, the output of the power supply device is de-energized without sparking or the like occurring at any point.
  • the power supply device is preferably used in such a way that the parting plane a - a 'lies in the partition wall 10 which closes off an ex-safe area 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Rectifiers (AREA)
EP89113089A 1988-07-28 1989-07-17 Appareil d'alimentation en courant électrique pour dispositifs électroniques Withdrawn EP0352592A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8809646U 1988-07-28
DE8809646U DE8809646U1 (de) 1988-07-28 1988-07-28 Stromversorgungsgerät für elektronische Einrichtungen

Publications (1)

Publication Number Publication Date
EP0352592A1 true EP0352592A1 (fr) 1990-01-31

Family

ID=6826407

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89113089A Withdrawn EP0352592A1 (fr) 1988-07-28 1989-07-17 Appareil d'alimentation en courant électrique pour dispositifs électroniques

Country Status (2)

Country Link
EP (1) EP0352592A1 (fr)
DE (1) DE8809646U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9012505U1 (de) * 1990-08-31 1991-06-27 Siemens AG, 80333 München Elektronische Türschließvorrichtung
US11322286B2 (en) 2016-04-14 2022-05-03 Signify Holding B.V. Split transformer assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1264587A (fr) * 1960-05-11 1961-06-23 Dispositif de prise de courant de sécurité par induction
FR1590236A (fr) * 1968-10-25 1970-04-13
US3522509A (en) * 1968-10-30 1970-08-04 Scient Data Systems Inc Floating power supply
DE2155219A1 (de) * 1971-11-06 1973-05-10 United Analysts Ltd Batteriebetriebenes geraet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1264587A (fr) * 1960-05-11 1961-06-23 Dispositif de prise de courant de sécurité par induction
FR1590236A (fr) * 1968-10-25 1970-04-13
US3522509A (en) * 1968-10-30 1970-08-04 Scient Data Systems Inc Floating power supply
DE2155219A1 (de) * 1971-11-06 1973-05-10 United Analysts Ltd Batteriebetriebenes geraet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9012505U1 (de) * 1990-08-31 1991-06-27 Siemens AG, 80333 München Elektronische Türschließvorrichtung
US11322286B2 (en) 2016-04-14 2022-05-03 Signify Holding B.V. Split transformer assembly

Also Published As

Publication number Publication date
DE8809646U1 (de) 1989-08-31

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