EP1237227A2 - Connecteur pour conducteur électrique - Google Patents

Connecteur pour conducteur électrique Download PDF

Info

Publication number
EP1237227A2
EP1237227A2 EP02251330A EP02251330A EP1237227A2 EP 1237227 A2 EP1237227 A2 EP 1237227A2 EP 02251330 A EP02251330 A EP 02251330A EP 02251330 A EP02251330 A EP 02251330A EP 1237227 A2 EP1237227 A2 EP 1237227A2
Authority
EP
European Patent Office
Prior art keywords
conductor
connector
collet
port
clamping means
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.)
Granted
Application number
EP02251330A
Other languages
German (de)
English (en)
Other versions
EP1237227A3 (fr
EP1237227B1 (fr
Inventor
Kenneth Gee
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.)
Sicame Electrical Developments Ltd
Original Assignee
Sicame Electrical Developments 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 Sicame Electrical Developments Ltd filed Critical Sicame Electrical Developments Ltd
Publication of EP1237227A2 publication Critical patent/EP1237227A2/fr
Publication of EP1237227A3 publication Critical patent/EP1237227A3/fr
Application granted granted Critical
Publication of EP1237227B1 publication Critical patent/EP1237227B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
    • H01R4/5016—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using a cone
    • H01R4/5025—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using a cone combined with a threaded ferrule operating in a direction parallel to the conductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/32—End pieces with two or more terminations

Definitions

  • the invention which is the subject of this application relates to a connector for use in the connection of electrical conductors such as for example the connection of respective ends of conductors, branch connections of conductors.
  • a first disadvantage is that the use of the clamping screws means that the length of the connector has to be such so as to accommodate the number of clamping screws which are required to be used and this can mean that the connector is in fact of a length determined mainly or solely by the number of clamping screws.
  • the additional length of the connector means that the same can become bulky and, when one considers that the connector is typically required to be fitted in a confined space underground, and often in inclement conditions as, for example, the space may be flooded in wet weather, it will be appreciated that a bulky connector is not a desirable feature.
  • a further problem is that there are now a number of different forms of conductors being used in the industry which are of different cross sectional shape and, in many instances, the conventional mechanical conductors are not satisfactory in connecting certain conductor types such as, for example, a conductor with a substantially circular cross section.
  • the aim of the present invention is to provide a mechanical connector for use in the connection of electrical conductors to provide electrical connection between the same and to provide the connector in a form which can be of relatively short length, is easy to fit in confined areas and can be adapted to allow the connection of conductors of different shapes and/or sizes. Furthermore, it is an aim of the present invention to provide a mechanical connector for electrical conductors which can be provided in a manner to match any of the known forms of mechanical connectors in terms of arrangement of the respective conductors which are to be joined together and therefore provide a range of mechanical connectors which can be used in accordance with conventional requirements.
  • a connector for the connection of the ends of at least two electrical conductors in an end to end manner to allow electrical connection between the said conductors, said connector including at least one body portion, said body portion having at least one port at one end thereof for the reception of a conductor end therein, a collet arrangement for location around said conductor and location within said port with the conductor, and a clamping means, engageable with the body portion such that movement of the clamping means to exert a clamping force with respect to the body portion causes the clamping means to move inwardly of the port and exert a moving action on the collet and characterised in that the movement of the collet causes the same to move to a fixing position in the body portion port with respect to the conductor and/or connector body and causes the collet to exert a gripping action on the conductor and thereby secure the conductor in position within the connector.
  • the connector is used to connect a number of conductor ends together although the connection means used for respective conductors may vary and may be in a number of different arrangements. It should therefore be appreciated that the connection arrangement for each conductor may or may not be formed in accordance with the invention.
  • the connector includes port openings at each end which extend into the length of the connector body, with a conductor end being introduced into each port opening and secured therein with respective collet and clamping means arrangements in accordance with the invention.
  • the body portion includes one port passing along the length thereof with two openings, each receiving a conductor end and clamping arrangement.
  • the connector body portion includes two ports, one extending inwardly from each of the body portion ends but not being linked.
  • the connector is formed by two connector body portions.
  • each body portion is arranged with a port protruding inwardly from one end of each and, at the other end, an engagement formation is provided which, by connection of the mutual engagement formations allow the two body portions to be brought into contact and secured in contact to form the connector.
  • the connector has at a first end, a port or number of ports and at a second end, a port or number of ports to allow the connection of more than two conductor ends.
  • the collet is formed from one or more components, and, in use, the components are placed on the conductor and positioned in the port with the conductor.
  • weakened lines and/or slots are provided at spaced locations on the collet to allow compression of the same during movement and the clamping of the collet on the conductor and connector within the connector body.
  • the walls of the port which receives the collet taper inwardly so as to form a substantially frustoconical shape as they depend inwardly of the connector from the port opening.
  • the collet when the clamping means is first moved inwardly of the port, the collet is caused to move further inwardly of the port along the conductor but, at the same time, the typically frustoconical shaping of the walls of the port, cause the collet to move inwardly and onto the conductor as the collet moves along to exert greater contact with the conductor. After a period of movement, the collet comes to a position where it can no longer move further along or inwardly of the port and becomes fixed in position with respect to the conductor and port and exerts a gripping action on the conductor.
  • the clamping means can be of any suitable form which allows the progressive movement of the same inwardly of the port of the connector body when it is required to clamp the conductor in position within the connector.
  • the clamping means is threaded and engages with a thread formed at the opening of the port such that rotation of the clamping means with respect to the connector body causes the same to progressively move inwardly of the port until the collet reaches a fixed position.
  • a visual indication is provided on the connector to allow the fitter of the connector to be sure that the required tensile strength has been reached in securing the conductor in position.
  • the clamping means are provided with a shearing feature such that when a predetermined selected clamping torque has been reached to cause the required tensile strength to be achieved, a portion of the clamping means shears thereby providing the visual indication required and, yet further, ensuring that the clamping means is not overly inserted into the container body.
  • the line of shear and shape of same can be such so as to leave the connector "clean lined” and available for the application of a shroud thereover and/or insulation via a heatshrink material or moulded shroud without risk of the shroud being damaged by the line of shear.
  • the clamping means is provided with a shear line which shears when a predetermined clamping torque is exerted by the clamping means.
  • the clamping means comprises a main portion which is threaded for location with the connector body portion, a shear line and a detachable drive portion, which when the clamping means shears is detached from the clamping means.
  • the drive portion shears from the main portion of the clamping means, further detachment of the drive portion occurs to cause the same to split and hence be removable from the conductor.
  • the shear line is formed so as to cause the splitting of the drive portion to occur or alternatively a separate shear line is included or, yet further, engagement means can be released to allow the drive portion to be detachable from the position round the conductor and hence leave only the main portion of the clamping means which is in contact with the connector body remaining.
  • the conductor ends are at least partially encapsulated in insulating material and, prior to the fitting of the connector, a portion of the insulating material at the conductor end is removed to allow the connector to be fitted thereon and bring about the electrical connection.
  • the collet can be formed of one piece or formed from a number of components brought together around the conductor.
  • the internal faces of the collet may be smooth or may be provided with protrusions thereon to improve the grip into the conductor.
  • the inner walls of the collet can be shaped to allow the receipt in a close fitting arrangement of the conductor.
  • the inner walls of the collet will be curved in a similar manner so that a substantially circular passage is defined therein, or, if the conductor has a 90° or 120° sector shape, as is also possible in commercial use, the inner walls of the collet can be formed accordingly to receive the conductor in close fitting relationship.
  • the inner walls of the collet and/or the body may be so formed as to be range taking inasmuch that they contact with a sufficient surface of the conductor to exert the gripping action thereon, regardless of the particular cross sectional shape of the conductor.
  • the connector in accordance with the invention can be range taking and/or adaptable so as to take into account the dimensions and shapes of the conductors to be joined together.
  • a clamping means and collet are inserted over and around the end of the conductor, said conductor and collet moved into a port in the connector and the clamping means engaged with and moved inwardly of the port, to move the collet further inwardly of the frustoconically shaped port causing the collet to move onto the conductor as the collet moves along the port to exert greater contact with the conductor, and after a period of movement, the collet comes to a position where it can no longer move longitudinally of the port and further movement of the clamping means inwardly of the port causes at least part of the collet to collapse to exert a gripping action on the conductor.
  • FIGs 1 and 2 there are illustrated the components of one embodiment of the connector and in Figure 2 one end of the said connector.
  • the connector 4 is shown in section in Figure 2 and comprises a body with a port 6 defined at at least one end.
  • the port is provided for the receipt of the conductor end 2 as indicated by arrow 8 and also receipt of a collet 10 which is placed onto the conductor as indicated by the arrow 12.
  • the clamping means 16 which will already have been placed around the bared conductor end 2 can be rotated as indicated by arrow 18 so as to engage with a threaded section 20 in the port 6.
  • the clamping means is rotated, so it moves inwardly of the port as indicated by arrow 22 to a position as shown in Figure 4.
  • Figure 3A illustrates the formation of the collet before the tightening occurs and the position of the collet after the gripping effect is shown in Figure 3B.
  • the clamping means 16 is also preferably provided with a shear line 27, which, upon a predetermined and selected clamping torque being reached when the clamping means is turned, shears as illustrated in Figure 4. At this stage the connector collet is in the position and condition as shown in Figures 3b and Figure 4 to exert the required tensile and other clamping forces on the conductor so as to secure the same in the port.
  • the shear line 27 is defined by a weakened line with narrower cross section on the clamping means.
  • the cross section size and shaping of the shear line 27 is predetermined with respect to the required clamping toque, the size of conductor, shape of the conductor, material used for the clamping means and indeed any relevant detail can be taken into account such that the drive portion 29 of the clamping means will shear off when the selected clamping torque on the collet and conductor is reached. This portion is therefore detachable from the connector leaving the main portion 31 in engagement with the connector and maintaining the clamping torque on the connector.
  • Figures 5a and 5b illustrate two forms of collet arrangement and Figure 5 illustrates that regardless of the internal shape of the collet, the external shape will be typically the same so as to allow the same to be acted upon by the inwardly sloping walls of the port 6 in the connector which forces the walls of the collet together and onto the conductor.
  • the formations 24 need not always be of the same shape and equally, the cone shaped walls 30 of the collet portions equally need not be the same length at all times and, preferably, will be shortened as much as possible so as to allow the subsequent length of the connector to be shortened.
  • Figure 5a illustrates the collet in use to exert a clamping effect on a conductor 2 with a circular cross section.
  • Figure 5b illustrates a collet with internal formations to accommodate a conductor 32 in the form of a sector cross section, in this case a 90° sector, conductor.
  • the internal area defined by the collet for the reception of the conductor can be formed to suit a particular conductor cross sectional shape.
  • the internal surfaces of the collet which are to contact with the conductor to be provided with ridges, teeth or other means which can move into the conductor material to improve the securing of the collet on the conductor during the clamping operation.
  • Figures 7a to 7e illustrate alternative embodiments of the connector in accordance with the invention.
  • Figure 7a illustrates a connector body 34 in section with first and second ports 36, 38 which join onto each other and each is for the respective location of a conductor end therein in accordance with the invention.
  • Figure 7b illustrates a connector body 40 with ports 42 and 44 which are not linked as shown.
  • Figure 7c illustrates a connector body which is formed of two connector parts 46, 48, each connector part having a port 50, 52 respectively for the engagement of a conductor end in accordance with the invention and furthermore, each connector part is provided with an engagement formation 54, 56 which, when brought together as shown, allow the two connector parts to be joined together to form the connector body.
  • a clamping means such as a clamping screw, not shown, is passed through the two formations 54, 56 to join the connector parts 46, 48 together.
  • Figure 7e illustrates a branch connector body 57 with each of the ports 58, 60, 62 used to receive a conductor end.
  • Figure 7d illustrates a terminal conductor body 63 in which the port 64 receives a conductor end which is secured therein in accordance with the invention, and a lug 66 is provided with means 68 to allow the same to be attached to apparatus to which the conductor end is used to supply electricity.
  • Figures 8-10 illustrate specific embodiments of a conductor body 100, collet 102 and clamping means 104 respectively.
  • Figure 11 illustrates the components of Figures 8 -10 in a fixing position for conductor ends (not shown) to be located in ports 106,106' respectively.
  • Figure 12 illustrates how the clamping means 104 can be moved inwardly of the connector body 100 as indicated by arrows 105 to a closed or clamping position. At this stage, continued turning of the clamping means results in the drive portions 129 of the clamping means shearing along shear line 127 and additionally at the same time or thereafter along shear line 133 which is shown in Figure 13.
  • the shear line 133 is provided to ensure that in addition to the drive portion shearing from the main portion 131 of the clamping means at the required clamping torque, the drive portion 129 splits in a manner to ensure that the split parts can be removed from the conductor completely and are not encircling the same.
  • the shear lines 127 and 133 can be joined so as to form an integral shear line.
  • the form and path of the shear lines 27, 127 and 133 can take any suitable design form, the important requirement being that upon a selected clamping torque being reached, the drive portion shears from the main portion of the clamping means and shears in such as manner so that the drive portion is removable from the conductor.
  • the collet can be formed from more than one component, said components placed around the conductor to form the action required and herein described.
  • the connector in accordance with the invention can be used for any conventional connection requirement but is provided in a form which represents significant advantages over the prior art.

Landscapes

  • Insulated Conductors (AREA)
  • Cable Accessories (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Processing Of Terminals (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
EP02251330A 2001-02-28 2002-02-26 Connecteur pour conducteur électrique Expired - Lifetime EP1237227B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0104935.2A GB0104935D0 (en) 2001-02-28 2001-02-28 Electrical conductor connector
GB0104935 2001-02-28

Publications (3)

Publication Number Publication Date
EP1237227A2 true EP1237227A2 (fr) 2002-09-04
EP1237227A3 EP1237227A3 (fr) 2003-10-29
EP1237227B1 EP1237227B1 (fr) 2011-11-09

Family

ID=9909690

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02251330A Expired - Lifetime EP1237227B1 (fr) 2001-02-28 2002-02-26 Connecteur pour conducteur électrique

Country Status (4)

Country Link
EP (1) EP1237227B1 (fr)
AT (1) ATE533204T1 (fr)
GB (1) GB0104935D0 (fr)
HK (1) HK1046333B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006082449A1 (fr) 2005-02-04 2006-08-10 Tyco Electronics Uk Limited Connecteur electrique
DE102007011096A1 (de) * 2007-03-07 2008-09-11 Nexans Anordnung zum Kontaktieren eines Aluminium enthaltenden elektrischen Leiters
EP2830159A1 (fr) * 2013-07-25 2015-01-28 Prysmian Cables & Systems Limited Connecteurs de conducteurs de câbles d'alimentation
CN104795646A (zh) * 2015-04-28 2015-07-22 国家电网公司 可组合式分支连接构件
CN113013659A (zh) * 2019-12-19 2021-06-22 新疆金风科技股份有限公司 防扭连接器、电缆连接装置及风力发电机组

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109149153A (zh) * 2018-09-21 2019-01-04 广州番禺电缆集团有限公司 一种导线连接分流装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2341970A (en) 1943-09-18 1944-02-15 Thexton Mfg Company Cable clamp
US5092797A (en) 1991-07-08 1992-03-03 Amp Incorporated Electrical wire connector
US5573423A (en) 1995-01-18 1996-11-12 Lin; Kuang-Ts'an Innovative distribution cable mounting device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR939596A (fr) * 1947-01-08 1948-11-18 Système de raccord pour connexions de fils et câbles électriques et toutes autres applications
US2549665A (en) * 1948-12-01 1951-04-17 John F Conrad Electric cable connector of the clamping type

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2341970A (en) 1943-09-18 1944-02-15 Thexton Mfg Company Cable clamp
US5092797A (en) 1991-07-08 1992-03-03 Amp Incorporated Electrical wire connector
US5573423A (en) 1995-01-18 1996-11-12 Lin; Kuang-Ts'an Innovative distribution cable mounting device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006082449A1 (fr) 2005-02-04 2006-08-10 Tyco Electronics Uk Limited Connecteur electrique
DE102007011096A1 (de) * 2007-03-07 2008-09-11 Nexans Anordnung zum Kontaktieren eines Aluminium enthaltenden elektrischen Leiters
EP2830159A1 (fr) * 2013-07-25 2015-01-28 Prysmian Cables & Systems Limited Connecteurs de conducteurs de câbles d'alimentation
US9455526B2 (en) 2013-07-25 2016-09-27 Prysmian Cables & Systems Limited Conductor connectors for power cables
AU2014204509B2 (en) * 2013-07-25 2018-05-10 Prysmian Cables & Systems Limited Conductor connectors for power cables
CN104795646A (zh) * 2015-04-28 2015-07-22 国家电网公司 可组合式分支连接构件
CN113013659A (zh) * 2019-12-19 2021-06-22 新疆金风科技股份有限公司 防扭连接器、电缆连接装置及风力发电机组
CN113013659B (zh) * 2019-12-19 2023-11-10 金风科技股份有限公司 防扭连接器、电缆连接装置及风力发电机组

Also Published As

Publication number Publication date
HK1046333B (zh) 2012-05-25
EP1237227A3 (fr) 2003-10-29
HK1046333A1 (en) 2003-01-03
GB0104935D0 (en) 2001-04-18
ATE533204T1 (de) 2011-11-15
EP1237227B1 (fr) 2011-11-09

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