EP3968471B1 - Prise électrique universelle pour réseaux résidentiels ca et cc - Google Patents

Prise électrique universelle pour réseaux résidentiels ca et cc Download PDF

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Publication number
EP3968471B1
EP3968471B1 EP20195387.4A EP20195387A EP3968471B1 EP 3968471 B1 EP3968471 B1 EP 3968471B1 EP 20195387 A EP20195387 A EP 20195387A EP 3968471 B1 EP3968471 B1 EP 3968471B1
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EP
European Patent Office
Prior art keywords
socket
plug
shape
recess
asymmetrical
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
EP20195387.4A
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German (de)
English (en)
Other versions
EP3968471C0 (fr
EP3968471A1 (fr
Inventor
Oleksandr HUSEV
Indrek ROASTO
Roman SHEVCHENKO
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.)
Tallinn University of Technology
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Tallinn University of Technology
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Publication date
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Publication of EP3968471B1 publication Critical patent/EP3968471B1/fr
Publication of EP3968471C0 publication Critical patent/EP3968471C0/fr
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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
    • H01R13/64—Means for preventing incorrect 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
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/28—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/76—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with sockets, clips or analogous contacts and secured to apparatus or structure, e.g. to a wall

Definitions

  • This invention belongs to the field of electric engineering and pertains to the concept of an electric facilities for residential DC and AC grids. More specifically, the invention concerns a universal electric plug.
  • the conventional AC low voltage sockets are well-known and is already specified and standardized, while DC sockets can be standardized based on existed inventions.
  • This invention represents the concept universal plugs derivation for residential low voltage system. We want to propose a specification of the new universal plug that can be plugged in the conventional AC and new DC sockets.
  • CEE 7 is a standard for AC plugs and sockets.
  • IECEE International Commission on the Rules for the Approval of Electrical Equipment
  • Type F or Plug F
  • Type E The plug Type F was designed in Germany shortly after the First World War. It goes back to a patent ( DE 370538 ) granted in 1926 to Albert Büttner, a Bavarian manufacturer of electrical accessories. It is round and has the addition of two grounding clips on the side of the plug. It defines size, distance between terminals and ground location. The AC system has alternating voltage polarity; as a result, it is unipolar and there is no difference in the terminals location of the AC plug.
  • the CEE 7/7 plug was developed to work with Type E and Type F sockets. It has the grounding pin of the Type E socket and has grounding clips on both sides to work with Type F sockets.
  • DE 10 56 222 B discloses a universal electric plug as described in the preamble of claim 1.
  • a DC plug is disclosed in US patent US8134254 "DC Power Outlets in Fixed Power Distribution Systems in or on Wall Installations". This patent describes a permanent charging station, where a variety of portable devices can be operated and/or re-energized in a home or office environment.
  • Another patent US7094089B2 describes a DC plug and a DC receptacle that are configured to engage one another at more than one position.
  • the DC plug and DC receptacle are also configured with a small contact distance to minimize the insertion and extraction forces that occur between the DC plug and the DC receptacle.
  • Patent US5901056A DC Power Supply Device Adapted To Operate With An Ac Power Supply Or With A Car Battery Wia A Cgarette Lighter” proposes a several solutions how to obtain DC power supply.
  • the present invention proposes the new universal plug that can be plugged into conventional AC socket (Type F) and an asymmetrical power socket that can be used as DC socket.
  • This asymmetrical DC socket has anti-mis-insertion power interface connector and protection from the AC plugs insertion.
  • Fig. 1a shows the conventional AC socket (Type F).
  • the conventional AC socket has two 4.8 mm round socket openings for plug pins spaced 19 mm apart 1, it has two earth clips on the top and bottom sides 2 of the socket recess and a hole for screw fixing 3.
  • the socket recess 4 shape is round (cylindrical).
  • the socket recess has two grooves 5 in other two sides, i.e. one groove in one side, which defines the proper position of the male connector when plugged into AC socket.
  • Fig. 1b shows one the possible shape of the asymmetrical DC socket that can be installed instead or along with conventional AC socket in the building.
  • the asymmetrical DC socket has similar earth clips on the top and bottom sides 2 of the socket recess and a hole for screw fixing 3.
  • the asymmetrical DC socket has two 4.8 mm round socket opening 6, 7 for plug pins and spaced 19 mm apart but with direct current polarity that can not be swapped.
  • the socket opening 6 and 7 have constant voltage difference that can be in a range from 340 V up to 450 V.
  • the asymmetrical DC socket has protrusion 8 in one side of socket recess protruding into said recess which prevents plug connection with socket in the reverse way.
  • socket recess 9 of the asymmetrical DC socket has a square shape.
  • the socket recess of the asymmetrical DC socket can have different shapes, but in any case the shape of DC socket recess does not allow insertion of the conventional round AC plug.
  • Fig. 2 shows the conventional ( Fig. 2a ) and asymmetrical plugs ( Fig. 2b ).
  • the asymmetrical DC plug has a correspondent to the asymmetrical DC socket ( Fig. 1b ) square shape with groove 10 corresponding to the protrusion 8 of the asymmetrical DC socket which defines connection of plug into socket and polarity of the protruding pins 11 and 12 that match the socket openings 6 and 7, of the plug female contacts in the asymmetric DC socket.
  • This asymmetric DC plug can not be inserted in the conventional AC socket due to the different shape of recess of the conventional AC socket.
  • the asymmetric DC plug has also grooves for grounding connectors 13.
  • the electric cord (14) for all plugs is shown in Fig. 2 .
  • Fig. 3 shows the proposed concept of the universal plug shape derivation 15 according to the embodiment of the present invention.
  • the shape of body of the universal electric plug 15 is realised by the by the geometric intersection of the shape of the body of the AC plug 4 shown in Fig. 3a and the shape of the recess of the asymmetric DC outlet 9 shown in Fig. 3b .
  • the crossing concept according to embodiment of present invention is illustrated in Fig. 3c .
  • Fig. 4 shows the proposed universal plug that can be inserted either in AC or DC sockets.
  • the shape of the universal plug is round and diameter of the universal plug corresponds to the diameter of the round recess of the conventional AC socket and length of the side of the square of the asymmetric DC socket.
  • the universal plug has two grooves for grounding 13 and groove 10 which defines placement and polarity of the protruding pins of universal plug when said plug is plugged to the asymmetric DC socket.
  • this universal plug can be connected to the conventional AC socket thanks to the shape of plug 15 that is derived by the geometric intersection of the shape of the body of the AC plug.
  • This type of universal plugs can be utilized for devices that accept both DC or AC voltage grids.
  • the most important item of the asymmetrical DC socket concept is asymmetrical shape of the socket recess. It prevents wrong connection of the male plug taking into account voltage polarity of the DC grid.
  • the universal plug shape embodiment are derived by the geometric intersection of the round shape of AC plug 4 and the corresponding embodiment shape of the recess of symmetrical DC socket.
  • the universal plug according to present invention has body comprising two protruding pins 11, 12 and two grounding grooves 13.
  • the grounding grooves 13 are formed opposite in side of plug body as seen in Fig 4 .
  • the shape of the body of universal plug is derived by the geometric intersection of the shape of the body of the AC plug 4 and the shape of the recess of the asymmetric DC outlet 9.
  • the cross section shape of grounding grooves 13 are square and the grooves are extending to the both end faces of the universal plug body.
  • the universal plug body can have groove 10 formed in the side of plug body. Said groove 10 is located in side of plug body on an axis parallel to the axis of the two grounding grooves 13.
  • the groove 10 defines placement and polarity of the protruding pins 11, 12 of universal plug when said plug is plugged to the asymmetric DC socket.
  • this universal plug can be connected to the conventional AC socket thanks to the bevelled edges of the shape of plug 15 in other word to the shape of universal plug.
  • This type of universal plugs can be utilized for devices that accept both DC or AC voltage grids.
  • Fig. 5 illustrates several different embodiments of the shape of the universal plugs that are highlighted by pattern fill. It may have square 9 shape of the recess and square protrusion only on the left side or only on the right side 16 as it is shown in Fig. 5a.
  • Fig. 5b shows another embodiment where asymmetrical rectangular shape of the socket recess 18 is applied in order to prevent wrong plug connection without additional protrusion.
  • the shape of the universal plug also will not have any grooves but due to the asymmetrical shape keeps the feature of the connection to the DC socket only by single way without possibility to reverse.
  • Fig. 5c shows another possible embodiment where more sophisticated recess 19 with protrusion can be used.
  • Fig. 5d shows the embodiment with symmetrical recess and cut edges 20 and with protrusion 8 on the one side.
  • Another important item of the DC socket concept is that an imaginary circuit 17 of the round recess of AC socket 4 can not be fitted into any of the above described asymmetrical DC sockets. The same is valid in a reverse way: the shape of the recess of the DC socket can not be fitted into the round recess of the AC socket.
  • Fig. 2 , Fig.5(b) and Fig.5(c) are only background embodiments and examples not forming part of the claimed invention (nor square sockets in Fig.5(b) and Fig.5(c) ).

Landscapes

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

Claims (2)

  1. Un connecteur électrique universel (15) comportant un corps de connecteur comprenant deux broches saillantes (11, 12) destinées à être insérées dans des ouvertures de prise (1, 6, 7) d'une prise de courant alternatif conventionnelle et d'une prise de courant continu asymétrique, et deux rainures de mise à la terre (13) formées respectivement sur les côtés supérieur et inférieur du corps de connecteur et s'étendant jusqu'aux deux faces d'extrémité du corps de connecteur, le corps de connecteur ayant une forme ronde et un diamètre du connecteur électrique universel (15) adapté pour correspondre à un diamètre d'un évidement circulaire (4) de la prise de courant alternatif conventionnelle, le connecteur électrique universel pouvant être branché dans la prise de courant alternatif avec possibilité d'inversion inversée par la forme symétrique de la prise de courant alternatif, caractérisé par une rainure supplémentaire (10) formée uniquement sur le côté gauche ou uniquement sur le côté droit du corps de connecteur, et en outre caractérisé en ce que la rainure supplémentaire (10) définit un emplacement et une polarité des broches saillantes (11, 12) lorsque ledit connecteur est branché sur la prise de courant continu, et une longueur d'un côté d'un carré de la prise de courant continu asymétrique ayant une saillie (8) sur un côté de son évidement de prise correspondant à la rainure (10) et faisant saillie dans ledit évidement qui empêche la connexion du connecteur électrique universel avec la prise de courant continu de manière inversée, et le connecteur électrique universel (15) peut être branché dans la prise de courant continu asymétrique uniquement d'une seule manière sans possibilité d'insertion inverse par la forme asymétrique du réceptacle symétrique de courant continu (9) avec la saillie située uniquement du côté d'une broche positive ou négative de la prise de courant continu.
  2. Le connecteur électrique universel selon la revendication 1, caractérisé en ce que la rainure (10) formant une forme asymétrique quelconque est située sur un axe parallèle à l'axe des deux rainures de mise à la terre (13).
EP20195387.4A 2020-09-09 2020-09-09 Prise électrique universelle pour réseaux résidentiels ca et cc Active EP3968471B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20195387.4A EP3968471B1 (fr) 2020-09-09 2020-09-09 Prise électrique universelle pour réseaux résidentiels ca et cc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20195387.4A EP3968471B1 (fr) 2020-09-09 2020-09-09 Prise électrique universelle pour réseaux résidentiels ca et cc

Publications (3)

Publication Number Publication Date
EP3968471A1 EP3968471A1 (fr) 2022-03-16
EP3968471B1 true EP3968471B1 (fr) 2024-05-08
EP3968471C0 EP3968471C0 (fr) 2024-05-08

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ID=72470222

Family Applications (1)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19506713C2 (de) * 1995-02-27 1996-12-19 Hengstler Peter Gmbh & Co Kg Mehrpoliger Steckverbinder

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE370538C (de) 1923-03-03 Albert Buettner Steckervorrichtung
DE1056222B (de) * 1954-11-11 1959-04-30 Casp Arn Winkhaus Fa Elektrische Steckerverbindung
US5901056A (en) 1997-12-03 1999-05-04 Hung; Sheng-Chuan DC power supply device adapted to operate with an AC power supply or with a car battery via a cigarette lighter
YU54002A (sh) 2002-07-12 2006-03-03 Bojan Đorđević Asimetrična utičnica
US7094089B2 (en) 2004-03-12 2006-08-22 Apple Computer, Inc. DC connector assembly
WO2008066687A2 (fr) 2006-11-09 2008-06-05 The Wiremold Company Sorties d'alimentation cc dans des systèmes de distribution d'alimentation fixes dans ou sur des installations murales
CN207234049U (zh) 2017-06-30 2018-04-13 东莞市盛旭电子科技有限公司 一种新型防误插电源线连接器

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19506713C2 (de) * 1995-02-27 1996-12-19 Hengstler Peter Gmbh & Co Kg Mehrpoliger Steckverbinder

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Publication number Publication date
EP3968471C0 (fr) 2024-05-08
EP3968471A1 (fr) 2022-03-16

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