EP2208261B1 - Dispositif pour débrancher sans étincelles une bobine électromagnétique - Google Patents

Dispositif pour débrancher sans étincelles une bobine électromagnétique Download PDF

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Publication number
EP2208261B1
EP2208261B1 EP07857118A EP07857118A EP2208261B1 EP 2208261 B1 EP2208261 B1 EP 2208261B1 EP 07857118 A EP07857118 A EP 07857118A EP 07857118 A EP07857118 A EP 07857118A EP 2208261 B1 EP2208261 B1 EP 2208261B1
Authority
EP
European Patent Office
Prior art keywords
plug
spring
connection
section
spring assembly
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.)
Not-in-force
Application number
EP07857118A
Other languages
German (de)
English (en)
Other versions
EP2208261A1 (fr
Inventor
Ralf Höhn
Heiko Kühbauch
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.)
Festo SE and Co KG
Original Assignee
Festo SE and 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 Festo SE and Co KG filed Critical Festo SE and Co KG
Publication of EP2208261A1 publication Critical patent/EP2208261A1/fr
Application granted granted Critical
Publication of EP2208261B1 publication Critical patent/EP2208261B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/6608—Structural association with built-in electrical component with built-in single component
    • H01R13/6641—Structural association with built-in electrical component with built-in single component with diode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/703—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part
    • H01R13/7036—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part the switch being in series with coupling part, e.g. dead coupling, explosion proof coupling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit

Definitions

  • the invention relates to a device for spark-free unplugging a via two electrical connector elements of a connector assembly with two DC voltage contacts electrically connectable solenoid.
  • An object of the present invention is to provide a device of the type mentioned, by the use of non-provided with protective diodes magnetic coils or devices provided with magnetic coils is also possible in explosion-proof environment and it is ensured that when unplugging nevertheless no sparking.
  • the protective diode is not arranged on the magnetic coil or on the device provided with the magnetic coil but in the plug-in receptacle for the connector elements of the magnetic coil. It is ensured that the separation of the connection of one of the connector elements with the associated DC voltage contact, the protective diode still connects the two connector elements of the magnetic coil, so that the negative voltage pulse is short-circuited by induction, without a sparking can occur.
  • the diode also acts as an overvoltage limit during the regular shutdown process. It can thus magnetic coils be plugged with and without protection diode, so that appropriate considerations, which solenoid can be used, are not required. It can be used simple and inexpensive magnetic coils or devices provided with magnetic coils without protective circuit, so standard magnetic coils, especially in environments where explosion protection is required or mandatory.
  • the second portion of the first spring assembly is electrically fixed to the first DC voltage contact and lies in the Aussteckraum behind the second portion elastically on the first connector element.
  • the two subregions of the first spring arrangement are expediently designed as spring tongues, which also applies in particular to the second spring arrangement.
  • simple and inexpensive spring arrangements can be used.
  • the first spring arrangement is formed as a two-stage, compressible by the first connector element when inserting pressure spring assembly, wherein the first portion rests as a first stage on the first connector element and the second portion as a second stage for electrical connection to the first portion and the first DC voltage contact is formed from a predetermined spring pressure.
  • the first portion is suitably designed as a helical spring and the second portion as a leaf or plate spring.
  • the first portion is suitably designed as a helical spring and the second portion as a leaf or plate spring.
  • the second spring arrangement is expediently designed in the second embodiment as compressible by the second connector element when inserting compression spring assembly and has spring properties that ensure release of the system on the second connector element when unplugging the electrical connection of the first spring assembly from the first DC voltage contact.
  • the two plug-in connection elements are expediently arranged on the housing of a magnetic valve in which the magnetic coil is located. In principle, a cable connection is possible.
  • a plug-in receptacle of the plug connection arrangement for receiving the plug connection elements can be arranged on a housing or on an electrical, connectable with a cable coupling element.
  • a schematically illustrated solenoid valve 10 includes a magnetic coil 11, the electrical connections with two connector elements 12, 13 of a connector assembly 14 are connected.
  • the two plug connection elements 12, 13 can be arranged either on the housing of the solenoid valve 10 or on a plug which is connected via lines to the solenoid valve 10.
  • the solenoid coil 11 may also be arranged or integrated in another electrical device, for example in an electromagnet, a relay or the like.
  • the plug receptacle 15 may be arranged on or in an electrical device or formed as an electrical counter-coupling element or mating connector, which is mounted on an electrical cable 16.
  • the electrical cable 16 extends within the same and is connected in each case to an unillustrated electrical DC power source.
  • two DC voltage contacts 19, 20 are arranged in the plug receptacle 15, wherein the DC voltage contact 19 is connected to the negative pole and the DC voltage contact 20 to the positive pole of the DC voltage source.
  • a two-stage compression spring assembly 21 is arranged, the first portion 22 is formed as a first step as a helical spring and the first insertion 17 faces, while the second portion 23 is formed as a second stage as a leaf or plate spring and the negative DC voltage contact 19th bridged.
  • a second, designed as a helical spring compression spring arrangement 24 is arranged, which faces the second insertion opening 18.
  • the first two-stage compression spring assembly 21 and its second portion 23 is connected via a protective diode serving as a diode 25 to the positive DC voltage contact 20 and poled so that it locks when applying the DC voltage.
  • a protective diode serving as a diode 25 to the positive DC voltage contact 20 and poled so that it locks when applying the DC voltage.
  • a diode 25 a plurality of diodes may also be connected in parallel and / or series connection.
  • FIG. 1 a state is shown in which the plug connection elements 12, 13 are inserted into the plug receptacle 15.
  • the first compression spring assembly 21 is compressed by the first connector element 12, that the second portion 23 comes into contact with the negative DC voltage contact 19, which mechanically bridged in the unloaded state, that is not electrically connected to the second portion 23 of the first compression spring assembly 21.
  • the installation of the two plug-in connection elements 12, 13 on the two compression spring arrangements 21, 24 thus leads to that the magnetic coil 11 is acted upon by the DC voltage.
  • FIG. 2 is a state shown in which the connector elements 12, 13 are already partially pulled out, that occupy a position during the Aussteckvorgangs.
  • the two compression spring assemblies 21, 24 are still at the two connector elements 12, 13, but the spring force has already been reduced so that the second portion 23 of the first compression spring assembly 21 has lifted from the first DC voltage contact 19 and no longer connected to this consists.
  • the diode 25 continues to connect the two connector elements 12, 13 via the two compression spring assemblies 21, 24.
  • an oppositely directed induction voltage in the solenoid 11 is formed, which can now be degraded via the diode 25, so that no Abschaltfunken arise and so an operation in explosion-proof environment is possible.
  • FIG. 3 is the fully unplugged state shown in which the two connector elements 12, 13 have no contact with the compression spring assemblies 21, 24 more.
  • the spring force, in particular of the first compression spring arrangement 21, must be adjusted such that the first partial region 23 of the first compression spring arrangement 21 designed as a leaf or plate spring is pressed down in such a way that it comes into contact with the negative direct voltage contact 19. If the first subregion 22 of the compression spring arrangement 21 has a harder spring characteristic than the second subregion 23, a relatively early contact takes place when the plug connection elements 12, 13 are plugged in, and a relatively late detachment occurs during disengagement From the first DC voltage contact 19, while this is the case in reverse properties in the reverse manner, ie at a first portion 22 with softer spring characteristic over the second portion 23 is a relatively late contact during insertion and a relatively early contact separation during unplugging.
  • the second compression spring assembly 24 is then each formed with appropriate dimensioning and spring characteristics, that is, in the illustrated embodiment, the second compression spring assembly 24 has the same or similar spring characteristics as the first portion 22 of the first compression spring assembly 21.
  • first compression spring arrangement 21 and the second compression spring arrangement 24 can also be arranged reversed with respect to the two poles, wherein two-stage compression spring arrangements can in principle also be provided at both poles.
  • the essential thing is merely that when unplugging the connector elements 12, 13 is still a contact with the two terminals of the diode 25 after the connection with one of the DC voltage contacts 19, 20 has been disconnected.
  • the two spring tongues 26, 27 form a first spring assembly 29, wherein the spring tongue 26 is connected as a first portion of the first spring assembly 29 with a terminal of the diode 25 and the spring tongue 27 as the second portion of the first spring assembly 29 with the negative DC voltage contact 19.
  • These two spring tongues 26, 27 are in the insertion direction one behind the other laterally on the first connector element 12, wherein the system of the spring tongue 26 is further removed from the negative DC voltage contact 19, as the system of the second spring tongue 27th
  • the spring tongue 28 forms the second spring arrangement 30, which rests in the inserted state of the connector elements 12, 13 on the second connector element 13 in height corresponding to the spring tongue 26.
  • a modified connector assembly 14 ' instead of the connector assembly 14 of the first embodiment, a modified connector assembly 14 'and instead of the socket 15 of the first embodiment, a modified socket 15'.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Claims (12)

  1. Dispositif servant à débrancher sans étincelles une bobine magnétique (11) pouvant être reliée électriquement à deux contacts à tension continue (19, 20) par l'intermédiaire de deux éléments de connexion enfichables (12, 13) électriques d'un ensemble de connexion enfichable (14 ; 14'), caractérisé en ce que le premier et le deuxième desdits éléments de connexion enfichables (12, 13) sont reliés électriquement à l'état enfiché au premier contact à tension continue et au deuxième contact à tension continue (19, 20) par l'intermédiaire d'un premier et d'un deuxième ensemble formant ressort (21, 24 ; 29, 30), et en ce qu'au moins une diode (25) polarisée dans la direction d'arrêt relie les deux ensembles formant ressort (21, 24 ; 29, 30) l'un à l'autre, et en ce qu'au moins le premier ensemble formant ressort (21 ; 29) se compose de deux zones partielles (22, 23 ; 26, 27), parmi lesquelles la première zone partielle (22 ; 26) est reliée en permanence à la diode (25) et repose de manière élastique au niveau du premier élément de connexion enfichable (12) lorsque ce dernier se trouve dans l'état enfiché, et parmi lesquelles la deuxième zone partielle (23 ; 27) relie de manière électrique ledit élément de connexion enfichable (12) à l'état monté au premier contact à tension continue (19), sachant que la deuxième zone partielle (23 ; 27) est réalisée pour ouvrir ladite liaison électrique avant la suppression de l'application de la première zone partielle (22 ; 26) dudit ensemble formant ressort (21 ; 29) au niveau du premier élément de connexion enfichable (12) et avant la suppression de l'application du deuxième ensemble formant ressort (24 ; 30) au niveau du deuxième élément de connexion enfichable (13) lors du débranchement.
  2. Dispositif selon la revendication 1, caractérisé en ce que la deuxième zone partielle (27) du premier ensemble formant ressort (29) est reliée électriquement de manière solidaire au premier contact à tension continue (19) et repose dans la direction de débranchement derrière la deuxième zone partielle (27) élastiquement au niveau du premier élément de connexion enfichable (12).
  3. Dispositif selon la revendication 2, caractérisé en ce que les deux zones partielles (26, 27) du premier ensemble formant ressort (29) sont réalisées comme des lames flexibles.
  4. Dispositif selon la revendication 2 ou 3, caractérisé en ce que le deuxième ensemble formant ressort (30) est réalisé comme une lame flexible (28).
  5. Dispositif selon la revendication 1, caractérisé en ce que le premier ensemble formant ressort (21) est réalisé sous la forme d'un ensemble à ressort de pression à deux étages pouvant être comprimé par le premier ensemble de connexion enfichable (12) lors de l'enfichage, sachant que la première zone partielle (22) repose en tant que premier étage au niveau du premier élément de connexion enfichable (12) et que la deuxième zone partielle (23) est réalisée en tant que deuxième étage pour établir une liaison électrique à partir d'une pression de ressort pouvant être prédéfinie entre la première zone partielle (22) et le premier contact à tension continue (19).
  6. Dispositif selon la revendication 5, caractérisé en ce que la première zone partielle (22) est réalisée sous la forme d'un ressort à boudin, et en ce que la deuxième zone partielle (23) est réalisée sous la forme d'un ressort à lames ou d'un ressort Belleville.
  7. Dispositif selon la revendication 5, caractérisé en ce que les deux zones partielles sont réalisées sous la forme de ressorts à boudin.
  8. Dispositif selon la revendication 5, caractérisé en ce que les deux zones partielles sont réalisées sous la forme de ressorts à lames ou de ressorts Belleville.
  9. Dispositif selon l'une quelconque des revendications 5 à 8, caractérisé en ce que le deuxième ensemble formant ressort (24) est réalisé sous la forme d'un ensemble à ressort de pression pouvant être comprimé par le deuxième élément de connexion enfichable (14) et présente des propriétés élastiques, qui garantissent une suppression de l'application au niveau du deuxième élément de connexion enfichable (14) lors du débranchement après la suppression de la liaison électrique du premier ensemble formant ressort (21) par le premier contact à tension continue (19).
  10. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la bobine magnétique (11) est réalisée sous la forme d'une bobine magnétique d'une électrovanne (10).
  11. Dispositif selon la revendication 10, caractérisé en ce que les deux éléments de connexion enfichables (14) sont disposés au niveau du boîtier de la bobine magnétique (10).
  12. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un logement d'enfichage (15 ; 15') de l'ensemble de connexion enfichable (14 ; 14') est disposé au niveau d'un boîtier ou au niveau d'un élément de couplage électrique relié ou pouvant être relié à un câble.
EP07857118A 2007-12-22 2007-12-22 Dispositif pour débrancher sans étincelles une bobine électromagnétique Not-in-force EP2208261B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2007/011413 WO2009080088A1 (fr) 2007-12-22 2007-12-22 Dispositif pour débrancher sans étincelles une bobine électromagnétique

Publications (2)

Publication Number Publication Date
EP2208261A1 EP2208261A1 (fr) 2010-07-21
EP2208261B1 true EP2208261B1 (fr) 2013-01-09

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ID=39708599

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07857118A Not-in-force EP2208261B1 (fr) 2007-12-22 2007-12-22 Dispositif pour débrancher sans étincelles une bobine électromagnétique

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EP (1) EP2208261B1 (fr)
WO (1) WO2009080088A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016218753B3 (de) * 2016-09-28 2018-01-11 Festo Ag & Co. Kg Ventilanordnung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1431993B1 (fr) * 2002-12-19 2007-01-17 Sony Ericsson Mobile Communications AB Assemblage de connecteur électrique avec un intérrupteur de détection de la connexion
JP4308065B2 (ja) * 2004-03-31 2009-08-05 新電元工業株式会社 直流コンセント
US7063570B1 (en) * 2005-02-25 2006-06-20 Delphi Technologies, Inc. Electrical connector and component packaging assembly

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WO2009080088A1 (fr) 2009-07-02
EP2208261A1 (fr) 2010-07-21

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