EP2637263A1 - Structure de prévention d'insertion erronée de connecteurs électriques - Google Patents

Structure de prévention d'insertion erronée de connecteurs électriques Download PDF

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Publication number
EP2637263A1
EP2637263A1 EP13155577.3A EP13155577A EP2637263A1 EP 2637263 A1 EP2637263 A1 EP 2637263A1 EP 13155577 A EP13155577 A EP 13155577A EP 2637263 A1 EP2637263 A1 EP 2637263A1
Authority
EP
European Patent Office
Prior art keywords
contacts
key
plug
erroneous insertion
prevention structure
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Withdrawn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
EP13155577.3A
Other languages
German (de)
English (en)
Inventor
Taku Kawano
Yosuke Matsukawa
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.)
Honda Tsushin Kogyo Co Ltd
Original Assignee
Honda Tsushin Kogyo Co Ltd
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 Honda Tsushin Kogyo Co Ltd filed Critical Honda Tsushin Kogyo Co Ltd
Publication of EP2637263A1 publication Critical patent/EP2637263A1/fr
Withdrawn legal-status Critical Current

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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
    • H01R13/642—Means for preventing incorrect coupling by position or shape of contact members

Definitions

  • the present invention relates to an erroneous insertion prevention structure of electric connectors.
  • the connectors when mounting a plurality of electric connectors having the same number of contacts and substantially the same shape and dimension on an apparatus, the connectors are differentiated from other connectors by a key shape with key grooves 20 and key projections 21 at different positions respectively on insulating housings of the plugs and the receptacles.
  • increase in types of key shape is limited due to limitations of space on the insulating housing, and there are limitations to the variety of configurations in a limited space.
  • An erroneous insertion prevention structure of an electric connector according to the invention is intended to solve the above-described problem, allow increase in type of a key shape in a limited space, and hence allow a variety of configurations of an electric connector while contributing to space saving.
  • the positions of the fitting portions each including the key groove and the key projection may be the same, or may be different from each other among the respective electric connectors.
  • the configuration in which the positions of the fitting portions are different from each other provides a larger number of combinations of the key shapes.
  • a pitch between the contacts is widened to an extent that allows a thick cable to be connected to one of the contacts on the plug side.
  • the thick cable may be used even though the size of the connector is small, which contributes to improvement of apparatus performances.
  • the invention achieves a superior advantage that the electric connector which satisfies a variety of requirements in the configuration without changing the height or the width of the connector from those of the related art in a case where a plurality of number of the electric connectors having the same number of contacts and substantially the same shape and dimensions are mounted on the apparatus.
  • An erroneous insertion prevention structure 1 of an electric connector allows an increase in key type not only by changing the key shape on insulating housings of a plug and a receptacle but also by changing an array pitch of the contacts as illustrated in Fig. 1 to Fig. 3B .
  • Fig. 1 illustrates the erroneous insertion prevention structure 1 of the electric connector according to a first embodiment of the invention, including a key shape A and a key shape B.
  • the key shape A is formed on a connector including a receptacle 2 having an insulating housing 2a and contacts 6, 7, and 8 fixedly positioned on the insulating housing 2a, and a plug 3 including an insulating housing 3a and contacts 6a, 7a, and 8a provided on the insulating housing 3a at positions corresponding to the contacts 6, 7, and 8.
  • the key shape B is formed on a connector including a receptacle 4 having an insulating housing 4a and the contacts 6, 7, and 8 fixedly positioned on the insulating housing 4a, and a plug 5 including an insulating housing 5a and the contacts 6a, 7a, and 8a provided on the insulating housing 5a at positions corresponding to the contacts 6, 7, and 8.
  • a fitting hole 2c of the insulating housing 2a on the receptacle 2 side is formed with a key groove 2b of a depressed shape at a position shifted leftward with respect to a center axis "a" thereof.
  • the projecting insulating housing 3a on the plug 3 side is formed with a key projection 3b at position symmetry with the key groove 2b of the fitting hole 2c of the receptacle 2.
  • a key groove 4b and a key projection 5b formed on the receptacle 4 and the plug 5 of the key shape B are also formed at the same position as the key groove 2b and the key projection 3b, respectively.
  • the arrangement of the contacts 6, 7, and 8 of the fitting holes 2c and 4c on the receptacle 2 and 4 sides is as illustrated in Fig. 1 .
  • the contacts 6 and 7 are arranged on the fitting hole 2c on the left side of the center axis "a" and the contact 8 is arranged thereon on the right side thereof.
  • the contact 6 is arranged on the fitting hole 4c on the left side of a center axis b, and the contacts 7 and 8 are arranged thereon on the right side thereof.
  • the contacts 6a, 7a, and 8a of the plugs 3 and 5 corresponding thereto are arranged at positions corresponding to the contacts 6, 7, and 8 of the receptacles 2 and 4.
  • the key shape A and the key shape B have array pitches of the contacts shifted from each other so as to prevent the erroneous insertion and allow identification thereof.
  • the arrangement of the key groove 2b in Fig. 1 is an example only, and three combinations are possible in addition thereto only by changing the arrangement of the key groove such as providing at the position of the center axis "a", or at the position shifted rightward with respect to the center axis "a".
  • the contact array in the key shape A may be varied, for example, by arranging the contact 6 on the left side of the center axis "a” and arranging the contacts 7 and 8 on the right side thereof. In this manner, there are three combinations including a case of arranging equally in the lateral direction with respect to the center axis "a". At this time, the arrangement in the key shape B is differentiated from that of the key shape A as a matter of course.
  • Fig. 2 illustrates an erroneous insertion prevention structure of an electric connector according to a second embodiment of the invention including a key shape C and a key shape D.
  • the key shape C is formed on a connector including a receptacle 11 having an insulating housing 11a and four-core contacts 16 fixedly positioned on the insulating housing 11a, and a plug 12 including an insulating housing 12a and contacts 16a provided on the insulating housing 12a at positions corresponding to the contacts 16.
  • a fitting hole 11c on the insulating housing 11a on the receptacle 11 side of the key shape C is formed with a key groove 11 b of a depressed shape at a position shifted leftward with respect to the center axis "a" thereof.
  • the projecting insulating housing 12a on the plug 12 side is formed with a key projection 12b at position symmetry with the key groove 11b of the fitting hole 11c of the receptacle 11.
  • a fitting hole 13c on an insulating housing 13a of a receptacle 13 of the key shape D is formed with a key groove 13b of a depressed shape on the center axis "a" thereof, and a key projection 14b on an insulating housing 14a on a plug 14 side is also formed on the center axis.
  • the four-core contacts 16 --- on the receptacle 11 side of the key shape C are arranged in such a manner that duplex contacts 16 and 16 on the upper side are arranged at a pitch "p" wider than those on the lower side.
  • the contacts 16a on the plug 12 side are arranged at a pitch corresponding thereto.
  • the four-core contacts 16 on the receptacle 13 side are arranged in such a manner that the duplex contacts 16 and 16 on the lower side are arranged at a pitch wider than those on the upper side, and the contacts 16a on the plug 14 side are arranged also at a pitch corresponding thereto, so that the erroneous insertion of the electric connectors of the key shape C and the key shape D is prevented, and the identification thereof is enabled.
  • the types of the key shape may be increased by changing the arrangement by changing the pitch from pair to pair or by changing the arrangement by changing the pitch from one contact to another.
  • the number of combinations of the key shape may be increased by combining different pitches on the upper side and the lower side. Accordingly, the fitting structures of the receptacle and the plug having a number of different arrangements may be obtained.
  • Figs. 3A and 3B are drawings explaining an example of usage of the electric connector having the erroneous insertion prevention structure according to the invention configured as described above with an example of the plug 3 of the key shape A in the first embodiment described above.
  • the plug 3 in the case of the key shape A illustrated in Figs. 3A and 3B see Fig. 1
  • the contacts 6a and 8a are arranged equally on the left side and the right side with respect to the center axis "a” (see Figs.
  • a radial dimension B of a mounting hole 15a of the plug 3 of the key shape A may be set to be larger than a radial dimension A (see Fig. 4B ) of a contact insertion hole 15 of the related art so as to satisfy the relationship of B>A as illustrated in the vertical cross-sectional view of Fig. 3B .
  • the erroneous insertion preventing structure of the electric connector according to the invention may be applied widely as a structure of an electric connector contributing to space saving.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP13155577.3A 2012-03-07 2013-02-18 Structure de prévention d'insertion erronée de connecteurs électriques Withdrawn EP2637263A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012050359A JP2013187006A (ja) 2012-03-07 2012-03-07 電気コネクタの誤挿入防止構造

Publications (1)

Publication Number Publication Date
EP2637263A1 true EP2637263A1 (fr) 2013-09-11

Family

ID=47720424

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13155577.3A Withdrawn EP2637263A1 (fr) 2012-03-07 2013-02-18 Structure de prévention d'insertion erronée de connecteurs électriques

Country Status (3)

Country Link
EP (1) EP2637263A1 (fr)
JP (1) JP2013187006A (fr)
CN (1) CN103311744A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108389746A (zh) * 2018-04-28 2018-08-10 佛山市顺德区美的洗涤电器制造有限公司 按键组件、控制面板盒和洗碗机
WO2020010095A1 (fr) * 2018-07-06 2020-01-09 Hubbell Incorporated Connecteur de fiche électrique et dispositif de câblage doté d'éléments de clavetage
US10923855B2 (en) 2018-08-07 2021-02-16 Japan Aviation Electronics Industry, Limited Connector to prevent misconnection of contacts without the use of a projection and a groove
CN114171989A (zh) * 2021-11-16 2022-03-11 北京卫星制造厂有限公司 一种电连接器防误插装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4764129A (en) * 1984-09-27 1988-08-16 British Telecommunications Plc Electrical connector assemblies
GB2224890A (en) * 1987-04-10 1990-05-16 Thyssen Industrie Electrical socket with multi-orientation test facility
WO2004095647A1 (fr) * 2003-04-22 2004-11-04 Twinsaver Co., Ltd Connecteur de cables de securite
WO2006083920A1 (fr) * 2005-02-04 2006-08-10 Tyco Electronics Corporation Montage de connecteurs electriques ayant au moins deux agencements de clavetage
EP2209171A2 (fr) * 2009-01-19 2010-07-21 DDK Ltd. Clés empêchant une fixation incorrecte et connecteur électrique l'utilisant

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04108509U (ja) * 1991-03-06 1992-09-18 フクダ電子株式会社 誘導コネクタ
JP2000150027A (ja) * 1998-11-10 2000-05-30 Sumitomo Wiring Syst Ltd 基板用コネクタ
JP2006302545A (ja) * 2005-04-15 2006-11-02 Jst Mfg Co Ltd コネクタ装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4764129A (en) * 1984-09-27 1988-08-16 British Telecommunications Plc Electrical connector assemblies
GB2224890A (en) * 1987-04-10 1990-05-16 Thyssen Industrie Electrical socket with multi-orientation test facility
WO2004095647A1 (fr) * 2003-04-22 2004-11-04 Twinsaver Co., Ltd Connecteur de cables de securite
WO2006083920A1 (fr) * 2005-02-04 2006-08-10 Tyco Electronics Corporation Montage de connecteurs electriques ayant au moins deux agencements de clavetage
EP2209171A2 (fr) * 2009-01-19 2010-07-21 DDK Ltd. Clés empêchant une fixation incorrecte et connecteur électrique l'utilisant
JP2010165624A (ja) 2009-01-19 2010-07-29 D D K Ltd １対の誤嵌合防止キー及び該キーを用いた電気コネクタ

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108389746A (zh) * 2018-04-28 2018-08-10 佛山市顺德区美的洗涤电器制造有限公司 按键组件、控制面板盒和洗碗机
CN108389746B (zh) * 2018-04-28 2024-05-31 佛山市顺德区美的洗涤电器制造有限公司 按键组件、控制面板盒和洗碗机
WO2020010095A1 (fr) * 2018-07-06 2020-01-09 Hubbell Incorporated Connecteur de fiche électrique et dispositif de câblage doté d'éléments de clavetage
US11063393B2 (en) 2018-07-06 2021-07-13 Hubbell Incorporated Electrical plug connector and wiring device with keying features
US10923855B2 (en) 2018-08-07 2021-02-16 Japan Aviation Electronics Industry, Limited Connector to prevent misconnection of contacts without the use of a projection and a groove
CN114171989A (zh) * 2021-11-16 2022-03-11 北京卫星制造厂有限公司 一种电连接器防误插装置

Also Published As

Publication number Publication date
CN103311744A (zh) 2013-09-18
JP2013187006A (ja) 2013-09-19

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