EP1240689B1 - Electrical connectors - Google Patents

Electrical connectors Download PDF

Info

Publication number
EP1240689B1
EP1240689B1 EP00985596A EP00985596A EP1240689B1 EP 1240689 B1 EP1240689 B1 EP 1240689B1 EP 00985596 A EP00985596 A EP 00985596A EP 00985596 A EP00985596 A EP 00985596A EP 1240689 B1 EP1240689 B1 EP 1240689B1
Authority
EP
European Patent Office
Prior art keywords
electrical connector
housing part
electrical
housing
housing parts
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.)
Expired - Lifetime
Application number
EP00985596A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1240689A1 (en
Inventor
Richard Drewnicki
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.)
Commtel (UK) Ltd
Original Assignee
Commtel (UK) Ltd
COMMTEL UK 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
Priority claimed from GBGB9930660.7A external-priority patent/GB9930660D0/en
Priority claimed from GB0003169A external-priority patent/GB0003169D0/en
Application filed by Commtel (UK) Ltd, COMMTEL UK Ltd filed Critical Commtel (UK) Ltd
Publication of EP1240689A1 publication Critical patent/EP1240689A1/en
Application granted granted Critical
Publication of EP1240689B1 publication Critical patent/EP1240689B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01R13/648Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/652Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding   with earth pin, blade or socket
    • 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
    • H01R13/44Means for preventing access to live 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
    • H01R13/46Bases; Cases
    • H01R13/502Bases; Cases composed of different pieces
    • H01R13/506Bases; Cases composed of different pieces assembled by snap action of the parts
    • 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
    • H01R2103/00Two poles

Definitions

  • the invention relates to electrical connectors and more particularly but not exclusively to electrical plugs.
  • the electrical connector of US 4,629,279 does not have electrical connections which protrude therefrom. It is an object of the present invention to provide an improved electrical connector.
  • an electrical connector comprising a body having first and second housing parts each having front faces, characterised in that at least one electrical connection is mounted on and projects from the front face of the first housing part and that the first and second housing parts are movable relative to each other between a storage position in which the or each electrical connection is concealed by concealing means in the second body part to a use position.
  • the present invention thus addresses the problem of housing electrical connections which protrude from a surface of the electrical connector when folding the electrical connector.
  • the electrical connections are conveniently located within the body of the connector which enables easier transportation of the connector.
  • the electrical connections are concealed and thus protected from wear and tear during transport of the electrical connector.
  • the first and second housing part are preferably hollow so as to house the various electrical component of the electrical connector, including the or each electrical connection in the storage position.
  • the electrical connector may further comprise at least one electrical connection mounted on and projecting from the front face of the second body part, the or each connection being concealed by concealing means in the first body part in the storage position.
  • the first and second parts are preferably connected by a hinge so that the first and second parts are hinged together for movement between the storage or folded position and the use or open position.
  • the hinge is located on the body of the connector rather than on the connections, there is no risk of the connections being incorrectly aligned in their use position. In addition the electrical integrity of the connector can be assured.
  • the or each electrical connection is preferably rigidly mounted on the body.
  • first and second housing parts In the storage position the first and second parts are preferably superposed so that the front faces of the first and second parts are in the same plane and in the use position the first and second parts are preferably disposed side-by-side so that the front faces are face-to-face.
  • the first and second housing parts may comprise engagement means for holding the first and second housing parts in the use position.
  • the engagement means may be releasable to allow movement from the use position to the storage position.
  • the engagement means may be in the form of a catch mechanism comprising first and second hooks which lock together and a spring which exerts a force biasing the hooks into contact.
  • the first hook may be housed in the second housing part and the second hook may be housed in the first housing part.
  • the catch mechanism may further comprise an elongate member on one end of which the second hook is mounted, the elongate member contacting the spring so that a force on an opposed end of the elongate member releases the force exerted by the spring.
  • the concealing means may be in the form of a slot or a cavity.
  • the cross-section and the depth of each slot or cavity is preferably slightly larger than the cross-section and the depth of corresponding electrical connection so as to ensure a snug-fit of the electrical connection in the corresponding slot or cavity.
  • the electrical connector may further comprise a captive lead, one end of which is connected electrically to the electrical connections.
  • the body may further comprise a lead housing which may be generally cylindrical. The lead may extend through a hole in the lead housing which may be in the second part.
  • the electrical connector may be in the form of a mains electrical plug for connecting an electrical device to a power supply.
  • the electrical connections may be in the form of pins. There may be one pin mounted on the first body part with a corresponding slot in the second body part and two pins mounted on the second part body part with corresponding cavities in the first body part so that as the plug is rotated from the storage position to the use position, the pins are released from the corresponding slot or cavity.
  • the pins may be square pins.
  • the plug may comprise a fuse.
  • the electrical connector body may house an a/c adapter e.g. to supply low voltage d.c. current for charging a rechargeable battery.
  • the connector may comprise means for electrically connecting to a mobile phone for re-charging the battery thereof.
  • an a/c adapter in the body of the electrical connector may be arranged to supply low voltage d.c. power to other electrical equipment such as radios or the like.
  • the electrical connector may house a printed circuit board which may contain a built-in switching supply. The circuit board may be housed in the second housing part.
  • FIGs 1 to 10 illustrate an electrical connector (10) in the form of a mains plug according to the present invention.
  • the electrical connector or plug (10) comprises a body (12) having first and second hollow housing parts (14,16) which are connected together and rotatable relative to each other about a hinge (18).
  • the first and second housing parts (14,16) are rotatable from a first position in which they are side-by-side as shown in Figures 6 and 7 to a second position in which they are vertically aligned as shown in Figures 1 to 5 .
  • the first position of the first and second housing parts corresponds to a storage position of the plug and the second position to a use position.
  • a first electrical connection or pin (22) is rigidly mounted on the first housing part (14) so that the first pin (22) projects perpendicularly from a front face (20) of the first housing part (14).
  • Second and third electrical connections or pins (30,32) are rigidly mounted on the second housing part (16) so that the second and third pins (30,32) project perpendicularly from a front face (28) of the second housing part (16).
  • the pins (22,30,32) are standard square pins with the second and third pins (30,32) being of equal size and the first pin (22) being lager than the second and third pins (30,32).
  • the second housing part (16) further comprises concealing means in the form of a slot (34) which is designed to house the first pin (22) in the storage position.
  • the first housing part (14) further comprises concealing means in the form of two cavities (24,26) which are designed to house the second and third pins (30,32), respectively, in the storage position.
  • Each slot or cavity is at least as deep and has a larger cross-section than the corresponding pin. In view of the size constraints for the plug, the slot and cavities are designed so that the pins are a snug fit.
  • the plug (10) further comprises a lead (36) which extends through a generally cylindrical lead housing (38) in the rear face (40) of the second housing part (16).
  • One end (42) of the lead (36) is connected electrically to the pins (22,30,32) in the normal arrangement of a mains plug.
  • the lead housing (38) has a curved surface which is raised from the rear surface of the plug.
  • the plug (10) is shown in a use position in which the first and second housing parts (14, 16) are vertically aligned.
  • the first and second housing parts (14, 16) are held with their front faces (20,28) in the same plane, namely in vertical alignment, by a catch mechanism (58) which is shown in Figure 4 .
  • the catch mechanism (58) comprises first and second hooks (60,62) which lock together and are biased into contact by a spring (64).
  • the second hook (62) is mounted on an end of an elongate member (63) housed in the first housing part and contacting the spring (64).
  • the first hook (60) is mounted in the second housing part.
  • the opposed end (76) of the elongate member (68) is visible in the front face (20) of the first housing part (14). By exerting a force on the opposed end (76), the biasing force of the spring (64) on the second hook (62) is released. The second hook (62) is then released from its engagement with the first hook (60).
  • the plug is in a storage position in which the first and second housing parts (14,16) are horizontally aligned.
  • the front faces of both the first and second housing parts (14,16) are adjacent and face-to-face.
  • the first pin (22) is housed within the first slot (34) and the second and third pins (30,32) within the corresponding first and second cavities (24,26).
  • the bottom (44) of the first housing part (14) and the top (46) of the second housing part (16) form a generally flat first surface (48) of the plug.
  • the top (50) of the first housing part (14) and the bottom (52) of the second housing part (16) form a generally smooth, curved second surface (54).
  • FIGS 8 and 9 show the plug (10) in a transitional or semi-folded state.
  • the first and second housing parts (14,16) are rotated about the hinge (18) so as to release pins (22,30,32) from the corresponding slot and cavities (34, 24,26).
  • the first hook (60) of the catch mechanism is forced past the second hook (62).
  • the hooks are generally rigid but with sufficient flexibility to allow a small deflection.
  • the catch mechanism (58) is releasable so that the plug may be returned to the storage position from the use position, if desired.
  • Figure 10 shows the location of the hinge (18) which fits in holes (66) adjacent the front faces (20,28) of the housing parts (14,16) to link the two housing parts together.
  • a fuse housing (56) is located on a top face of the second housing part (16) so that the plug (10) may comprise a fuse (not shown) if necessary.
  • FIGS 11 to 13 show a second plug (70) according to the present invention.
  • the features in common with the first embodiment of the invention depicted in Figures 1 to 10 are labelled using the same reference numbers.
  • the plug (70) comprises a body (12) having first and second hollow housing parts (14,16) which are rotatable relatively to each other about a hinge (18) in a similar manner to the first embodiment depicted in Figures 1 to 10 .
  • first and second housing parts are rotated between a storage position (not shown) to a use position shown in Figures 11 to 13 in which the first and second housing parts (14,16) are aligned vertically or superposed.
  • a first square pin (22) is rigidly mounted on the first housing part (14) and two smaller square pins (30,32) are rigidly mounted on the second housing part (16).
  • pins (30,32) are housed in corresponding slots (24,26) which are spaced from the surface on the first housing part (14).
  • the second housing part is provided with a cutaway section or slot (72) which extends to the surface of the second housing part and which houses the pin (22) on the first housing part (14) in the storage position.
  • the second housing part (16) also houses a circuit board (74) which contains a built-in switching supply.
  • the invention thus provides a simple foldable electrical connector, e.g. a mains plug.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Organic Insulating Materials (AREA)
  • Insulated Conductors (AREA)
EP00985596A 1999-12-22 2000-12-18 Electrical connectors Expired - Lifetime EP1240689B1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB9930660 1999-12-22
GBGB9930660.7A GB9930660D0 (en) 1999-12-22 1999-12-22 Electrical connector
GB0003169 2000-02-12
GB0003169A GB0003169D0 (en) 2000-02-12 2000-02-12 Electrical connectors
PCT/GB2000/004845 WO2001047071A1 (en) 1999-12-22 2000-12-18 Electrical connectors

Publications (2)

Publication Number Publication Date
EP1240689A1 EP1240689A1 (en) 2002-09-18
EP1240689B1 true EP1240689B1 (en) 2009-07-22

Family

ID=26243631

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00985596A Expired - Lifetime EP1240689B1 (en) 1999-12-22 2000-12-18 Electrical connectors

Country Status (6)

Country Link
EP (1) EP1240689B1 (zh)
AT (1) ATE437459T1 (zh)
AU (1) AU2200501A (zh)
DE (1) DE60042610D1 (zh)
HK (1) HK1045408B (zh)
WO (1) WO2001047071A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2501672A (en) * 2012-03-13 2013-11-06 Netbit Electronics Ltd Two-part power plug
CN104409911A (zh) * 2014-10-07 2015-03-11 国意有限公司 可开合的插头装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2440210A (en) * 2006-07-18 2008-01-23 Astec Int Ltd An electrical plug having pins which fold
US8936478B2 (en) * 2009-02-04 2015-01-20 Made In Mind Ltd. Electrical plug
TWI434464B (zh) 2011-08-12 2014-04-11 Powertech Ind Co Ltd 可開閤插頭、具有可開閤插頭的電子裝置、及其連接座體

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7502842U (de) * 1975-01-31 1975-06-05 Julius E Kraftsteckkupplung für elektrische Leitungen
GB2303256A (en) * 1995-07-11 1997-02-12 Paul Philip Eden Plug with folding pins
US5641292A (en) * 1995-09-15 1997-06-24 Fann; Jenn-Wang Dual-use electric plug

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2501672A (en) * 2012-03-13 2013-11-06 Netbit Electronics Ltd Two-part power plug
CN104409911A (zh) * 2014-10-07 2015-03-11 国意有限公司 可开合的插头装置
WO2016055010A1 (zh) * 2014-10-07 2016-04-14 国意有限公司 可开合的插头装置
GB2546691A (en) * 2014-10-07 2017-07-26 Cord-It Ltd Opening/closing plug device
US10181671B2 (en) 2014-10-07 2019-01-15 Cord-It Limited Opening/closing plug device
GB2546691B (en) * 2014-10-07 2021-05-26 Cord It Ltd Foldable plug device

Also Published As

Publication number Publication date
EP1240689A1 (en) 2002-09-18
WO2001047071A1 (en) 2001-06-28
AU2200501A (en) 2001-07-03
ATE437459T1 (de) 2009-08-15
HK1045408B (zh) 2010-02-12
HK1045408A1 (en) 2002-11-22
DE60042610D1 (de) 2009-09-03

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