EP3391476B1 - Blocage mécanique d'une connexion électrique pour des tensions de réseau - Google Patents

Blocage mécanique d'une connexion électrique pour des tensions de réseau Download PDF

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Publication number
EP3391476B1
EP3391476B1 EP16810074.1A EP16810074A EP3391476B1 EP 3391476 B1 EP3391476 B1 EP 3391476B1 EP 16810074 A EP16810074 A EP 16810074A EP 3391476 B1 EP3391476 B1 EP 3391476B1
Authority
EP
European Patent Office
Prior art keywords
plug
securing means
means according
protective
pushbutton
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.)
Active
Application number
EP16810074.1A
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German (de)
English (en)
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EP3391476A1 (fr
Inventor
Egon HEULE
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.)
A Steffen Ag Elektrohandel
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A Steffen Ag Elektrohandel
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Publication of EP3391476A1 publication Critical patent/EP3391476A1/fr
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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627Snap or like fastening
    • H01R13/6275Latching arms not integral with the housing
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/64Means for preventing incorrect coupling
    • H01R13/641Means for preventing incorrect coupling by indicating incorrect coupling; by indicating correct or full engagement
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/28Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable
    • H01R24/30Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable with additional earth or shield contacts
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/633Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00Two poles

Definitions

  • the present invention relates to a mechanical fuse for an electrical connector according to the preamble of patent claim 1.
  • Plug connections with protective contact plug SCHUKO® (collective brand SCHUKO-WARENZEICHENVERBAND, Mannheim, DE) with round contact pins are standardized and notoriously known for device connections with a load up to 16 A at 230 V. This type of plug is internationally considered as type F.
  • the connector should preferably not be proprietary, i.e. In the same coupling part, plugs with mechanical locking and those without should fit.
  • Cable connectors with protective collars but also recessed sockets with protective contacts, such as those found in CEE 7/4 plugs and CEE 7/3 sockets, are considered to be plug-in connections with coupling part.
  • a front fitting contains a coaxial contact arrangement for DC voltages of high currents.
  • a single locking claw protrudes from the fitting; when inserted into the vehicle's electrical socket, it engages and the release button is blocked electro-mechanically. The plug cannot be removed until the charging process is completed. This avoids the fear of arcing with DC voltages.
  • the high-current plug has a latching element which is designed for releasably latching the high-current plug into a corresponding mating connector socket.
  • a mechanical fuse of an electrical plug connection in which the plug has a locking arm extending in the plugging direction with a locking hook at its front free end, which can be inserted into a locking channel of a socket. On its side facing away from the plug, the locking channel is open to the outside. When the plug is inserted into the socket, a color field attached to the locking hook appears in the area of the locking channel that is open to the outside.
  • the pushbutton having a marking or lateral edge line, the marking being visible from the side when the pushbutton protrudes too far beyond the housing of the plug.
  • the pushbutton can have several markings or lateral marginal lines, the markings or marginal lines being colored markings.
  • the mechanically and electrically correct connection can be optically checked by markings on the edge.
  • the correct immersion of the button in the plug can be precisely checked optically using the markings or side lines, for example in different signal colors.
  • the design for alternating current applications should be designed in such a way that it can generally also be used in thin-walled power plugs and connectors from different countries and does not lead to an unwanted loosening of the connection even after prolonged and intensive use.
  • it should be designed and suitable for SCHUKO® safety plugs in 220/230 V networks.
  • the subject of the invention can also be used to create a correct polarity connection.
  • Pushbuttons opposite one another result in particularly simple and convenient handling.
  • a single claw actuated by a push button is sufficient for mechanical locking.
  • a claw that is shaped according to its movement sequence is kinematically inexpensive and space-saving.
  • a visible assignment of the outer conductor and neutral conductor by buttons protruding from the connector is advantageous from an electrical engineering point of view. If, for example, the outer conductor is no longer routed through a housing, the resulting electrosmog is reduced. - This is a significant advance over the conventional SCHUKO® connector.
  • the plug connection can be optionally polarized by means of a mechanical fuse using four fuse notches in the protective collar.
  • central spring block allows several tasks to be combined in one component and is particularly space-saving.
  • Locking levers with similar bearing journals located opposite one another at the end are inexpensive and facilitate their manufacture because they can be installed either on the left or on the right in the plug.
  • a one-armed locking lever gives freedom of design for the forces and travel of the device.
  • One-piece pushbuttons made of thermoplastic with integrated spring support have proven their worth because they enable particularly simple assembly and a reduction in the overall height of the device.
  • a colored push button shows a correctly engaged mechanical connection.
  • the subject matter of the invention is not limited to a specific connector type.
  • the necessary restoring force of the locking device can be generated by one or more springs, so that the overall height of the device can be adapted to the existing geometric conditions.
  • Figure 1 is a type F connector designated 1, which is inserted into a protective collar 2 of a socket (or coupling).
  • protective contact springs 3 are laterally inserted in the usual manner in grooves 4.
  • the connector parts 1a and 1b are held together in receptacles 9a and 9b by means of fastening screws; the corresponding parting line is designated by 10.
  • Split guide rails 5 on the connector 1 fit into grooves 5 'in the protective collar 2 and center - in the usual way - the connector in the protective collar before an electrical contact via contact pins K is made.
  • the contact sockets known per se required for this purpose are omitted here for the sake of drawing.
  • Fig. 2 is a sectional view through this latter level and shows two keys 6, which are loaded opposite each other by springs 17.
  • the springs 17 are each supported on a spring bearing 20 of a spring block 18 and act on corresponding spring supports 15 in the pushbuttons 6.
  • the pushbuttons 6 are part of a lever 24, the end extension of which has pivot points D and are provided on the front with claws 7. If the pushbuttons 6 are relieved, the springs 17 press them in the direction of movement B into securing notches 16 in the protective collar 2 and engage there and thus secure the plug connection.
  • the contact pins K are thus secured in their contact sleeves 30 in the coupling part.
  • the buttons 6 are pressed together when the plug is inserted 1 by index finger and thumb of one hand (one-hand operation) in the protective collar 2.
  • connection cable power cable
  • a connection cable is inserted into the connector 1 via a cable outlet 8 and screwed into bores 12 via a cable clamp (not shown) and thus clamped against the fixed part of the cable clamp 13 installed in the connector 1.
  • bearings 14 for the locking levers 24 in the plug 1 on both sides.
  • the spring block 18 there is a central recess with a support for protective contact springs 21, 22; a lower protective contact spring is designated 22 and contacts the protective contact spring 3 in the protective collar 2 (see Fig. 1 )
  • On the spring block there are lateral limiting and supporting parts 19 on which the claws 7 rest in a form-fitting manner in the disengaged state - as shown; Fig. 2 ,
  • the operation of the connector is self-explanatory; please refer Fig. 1 and Fig. 2 : If the connector 1 is taken in one hand as usual and inserted into the protective collar 2 of the coupling piece, the slightly protruding pushbuttons 6 must be pressed into the housing of the connector 1. As a result, the claws 7 disappear, cf. Fig. 2 , in connector 1 so that it can be inserted as usual into protective collar 2 as far as it will go. If the plug 1 is released, the claw 7 engages in the safety notch 16: the plug connection is thus electrically connected and mechanically secured.
  • Colored markings 6 'on the edge of the button 6 indicate when the plug connection is correctly connected: If the button 6 projects too far beyond the housing of the plug 1, there is a mark 6', Fig. 1 , laterally visible. This means, that either the connection is not mechanically secured or that the outer conductor and neutral conductor are interchanged. Different colored markings 6 'on the edge of the button 6 indicate when the plug connection is correctly connected: If the button 6 protrudes too far beyond the housing of the plug 1, then the connection is either not mechanically secured or the outer conductor and neutral conductor are reversed. This presupposes that in this embodiment only two opposing notches 16 are provided in the protective collar 2.
  • Fig. 1 second fuse notches 16 ' are shown in dashed lines, these are to be regarded as alternative and are then additionally installed if the connector 1 - as is usual with the ordinary SCHUKO® system - should be able to be poled as desired.
  • the claws 7 engage in the safety notch 16 or the alternative notch 16 'and interchange the outer conductor (pole) with the neutral conductor.
  • the mark 6 'visible on the edge of the button 6 merely indicates the mechanically perfect connection; the polarity of the plug connection cannot be inferred.
  • a spring block 18 is shown with its details.
  • a central recess 29 there is a receptacle for a fastening screw, which is supported by a receptacle 9a, cf. Fig. 1 , is inserted and screwed into a cable clamp (not shown) for a protective conductor, in the sense of a threaded nut.
  • the cable clamp in turn carries the protective spring 21, 22, Fig. 2 , and fits positively laterally into the recess 29 with its lateral Recess 29 'for the insertion and connection of the protective conductor in the terminal.
  • the spring block 18 is provided with bearings 25 for the contact pins K, which are inserted as far as the stop 26 and are immovably clamped in the connector 1 in the usual manner. Cable bushings 27 for connecting the cables are also available and shown in the usual way.
  • the push button 6 is in Fig. 4 to see, on the end face of the claw 7 is arranged on a locking lever 24. On the opposite side there are two opposite bearing journals 23 on an extension of the lever 24, which result in the pivot point D in the locking device. On the claw 7 a radius 7 'can be seen, which is adapted to the sequence of movements of the lever 24 and changes to a stop 7 ", which ensures a play-free locking of the connection.
  • Fig. 5 is the locking lever 24 with its push button 6, shown from below: Here you can see a spring support 15 which the compression spring 17 ( Fig. 2 ) centers and holds.
  • the invention is characterized by its simplicity and can be integrated into the widespread, conventional SCHUKO® system as standard without major production changes. It is particularly favorable that plugs with a built-in locking device can also be used in existing, installed sockets and couplings.
  • the visual display of the locking status and / or the correct polarity represents a significant technical advance and an increase in security.
  • a proprietary embodiment variant of the subject matter of the invention could easily be made non-polar, in which the locking device could only be inserted into protective collars designed for it. This could completely remedy a system deficiency that has been known for decades and at the same time achieve a further increase in connection security by securely locking the plug connection.

Landscapes

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

Claims (11)

  1. Fixation mécanique pour une connexion enfichable de contact de protection à courant alternatif comprenant au moins deux broches de contact rondes conductrices (K) et un troisième pôle en tant que contact de protection, constituée d'un connecteur (1) présentant un boîtier et d'une pièce d'accouplement avec un collier de protection (2) et un dispositif de verrouillage pouvant être actionné par un bouton-poussoir (6), à partir d'un plan virtuel formé par des broches de contact opposées (K), dans un plan virtuel parallèle à celui-ci, dans une partie du connecteur (la), est prévu au moins un levier de verrouillage (24) sollicité par un ressort (17), lequel levier de verrouillage, pivotant autour d'un pivot (D), entre dans la partie de connecteur (1a) par le biais d'un bouton-poussoir (6) pouvant être commandé manuellement, que le levier de verrouillage (24), lors du relâchement du bouton-poussoir (6), s'engage avec sa griffe frontale (7) dans une encoche de fixation (16) dans le collier de protection (2) de la partie d'accouplement et fixe la connexion, caractérisée en ce que le bouton-poussoir (6) présente un marquage (6') ou une ligne de bord latérale, le marquage (6') étant visible depuis le côté lorsque le bouton-poussoir (6) dépasse trop du boîtier du connecteur (1).
  2. Fixation mécanique selon la revendication 1, caractérisée en ce que le bouton-poussoir (6) présente plusieurs marquages ou lignes de bord latérales.
  3. Fixation mécanique selon l'une quelconque des revendications précédentes, caractérisée en ce que les marquages ou lignes de bord sont des marquages colorés.
  4. Fixation mécanique selon la revendication 1, caractérisée en ce que deux dispositifs de verrouillage opposés l'un à l'autre (6, 7, 18, D ; 16) sont prévus.
  5. Fixation mécanique l'une quelconque des revendications précédentes, caractérisée en ce que le dispositif de verrouillage (6, 7, 18, D ; 16) présentent dans le connecteur (1) des boutons-poussoirs (6) opposés les uns aux autres qui dépassent du boîtier du connecteur (1).
  6. Fixation mécanique selon la revendication 1, caractérisée en ce que la griffe (7) est formée du côté frontal après le déroulement de son mouvement (B) .
  7. Fixation mécanique selon la revendication 5 ou 6, caractérisée en ce que celle-ci présente dans le collier de protection (2) quatre encoches de fixation (16) dans lesquelles s'engagent à chaque fois deux griffes opposées l'une à l'autre (7) de telle sorte que la connexion enfichable puisse être polarisée de manière sélective.
  8. Fixation mécanique selon la revendication 7, caractérisée en ce que celle-ci présente dans le collier de protection (2) quatre encoches de fixation (16 ; 16'), en ce qu'à chaque fois deux encoches de fixation (16 ou 16') opposées l'une à l'autre dans le plan virtuel parallèle présentent la même profondeur et dans lesquelles à chaque fois, en fonction de la position du connecteur (1), s'engagent dans les deux griffes mutuellement opposées (7) à des profondeurs distinguables de telle sorte que la connexion enfichable puisse être polarisée au choix de manière ciblée.
  9. Fixation mécanique selon la revendication 1, caractérisée en ce qu'à l'intérieur du connecteur (1) est inséré un bloc ressort (18) qui présente des appuis de ressort à effet de centrage mutuellement opposés (15) et dans l'évidement central duquel sont prévus les ressorts de contact de protection (21, 22), et en ce que des évidements (29 ; 29') sont prévus, lesquels reçoivent une borne de connexion pour un conducteur de protection connecté aux ressorts (21, 22) .
  10. Fixation mécanique selon la revendication 9, caractérisée en ce que le levier de verrouillage (24) est inséré autour de son pivot (D) en tant que levier à un bras avec une prolongation de course au niveau de la griffe (7).
  11. Fixation mécanique selon la revendication 9, caractérisée en ce que le levier de verrouillage (24) se compose d'un matériau thermoplastique et en ce que le bouton-poussoir (6) contient à l'intérieur de celui-ci un évidement avec un appui de ressort (15) à effet de centrage pour au moins un ressort de compression (17).
EP16810074.1A 2015-12-14 2016-12-05 Blocage mécanique d'une connexion électrique pour des tensions de réseau Active EP3391476B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015016140 2015-12-14
PCT/IB2016/057354 WO2017103728A1 (fr) 2015-12-14 2016-12-05 Blocage mécanique d'une connexion électrique pour des tensions de réseau

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Publication Number Publication Date
EP3391476A1 EP3391476A1 (fr) 2018-10-24
EP3391476B1 true EP3391476B1 (fr) 2020-02-05

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EP16810074.1A Active EP3391476B1 (fr) 2015-12-14 2016-12-05 Blocage mécanique d'une connexion électrique pour des tensions de réseau

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EP (1) EP3391476B1 (fr)
WO (1) WO2017103728A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109066226A (zh) * 2018-07-11 2018-12-21 贵州航天电器股份有限公司 一种新型超微矩形快锁电连接器及其实现结构
AT17010U1 (fr) * 2019-03-12 2021-02-15 Neutrik Ag

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4634204A (en) * 1985-12-24 1987-01-06 General Motors Corporation Electrical connector with connector position assurance/assist device
EP1376771A1 (fr) * 2002-06-14 2004-01-02 Power Logic Holdings AG Coupleurs d'installation
JP2006012635A (ja) * 2004-06-25 2006-01-12 Matsushita Electric Works Ltd 速結端子装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5145393A (en) * 1990-11-06 1992-09-08 Schoon Leslie R Electrical plug device
AU2003901230A0 (en) * 2003-03-18 2003-04-03 Wharton, Geoffrey Mr New generation of electrical plugs and socket systems
US7481664B1 (en) * 2008-06-12 2009-01-27 Tyco Electronics Corporation Electrical connector assembly
DE102008046235B3 (de) * 2008-09-08 2010-04-15 Fct Electronic Gmbh Miniaturisierter Hochstromstecker
JP5798934B2 (ja) 2012-01-17 2015-10-21 矢崎総業株式会社 電気コネクタ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4634204A (en) * 1985-12-24 1987-01-06 General Motors Corporation Electrical connector with connector position assurance/assist device
EP1376771A1 (fr) * 2002-06-14 2004-01-02 Power Logic Holdings AG Coupleurs d'installation
JP2006012635A (ja) * 2004-06-25 2006-01-12 Matsushita Electric Works Ltd 速結端子装置

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Publication number Publication date
EP3391476A1 (fr) 2018-10-24
WO2017103728A1 (fr) 2017-06-22

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