EP1030405A2 - Jointing sleeve or connector for splice or branch connections in electric cables - Google Patents
Jointing sleeve or connector for splice or branch connections in electric cables Download PDFInfo
- Publication number
- EP1030405A2 EP1030405A2 EP00660017A EP00660017A EP1030405A2 EP 1030405 A2 EP1030405 A2 EP 1030405A2 EP 00660017 A EP00660017 A EP 00660017A EP 00660017 A EP00660017 A EP 00660017A EP 1030405 A2 EP1030405 A2 EP 1030405A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- quill
- loose
- connector
- set forth
- jointing sleeve
- 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- Withdrawn
Links
Images
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
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
- H01R4/36—Conductive members located under tip of screw
- H01R4/363—Conductive members located under tip of screw with intermediate part between tip and conductive member
Definitions
- the present invention relates to a jointing sleeve provided with moment screws for splice connections in electric cables, said jointing sleeve comprising a housing, both ends of which are provided with quill-shaped spaces for receiving the ends of cables to be connected.
- the invention relates also to a branch-wire connector, comprising a housing provided with reception slots for wires, one or more C-shaped clamping pieces, the ends of which are in line with the slots of the housing, and one or more clamping screws for tightening the clamping piece or pieces toward the housing, the wires thereby pressing against the walls of the slots.
- Such connectors for branch wires are known to have a problem in terms of corrosion, particularly when connecting branch wires of copper with main cables of aluminium.
- the connector which is typically made of aluminium, must be tin-plated. The same problem applies also to the above-mentioned jointing sleeve connections.
- the jointing sleeve shown in fig. 1 is manufactured from a streamline tubing, both ends of which are provided with quill-shaped spaces 5 for receiving the ends of electric cables to be connected as extensions of each other.
- a pressure-proof partition 2 which is made from a loose disc whose middle section is pressed (flattened by pressing) after the insertion, such that the disc rims have expanded tightly against the inner surface of the sleeve aperture.
- moment screws 4 On either side of the partition 2 there are two pieces of tapped holes 3 for moment screws 4. As the moment screw 4 is driven against the end of a wire or cable present within the sleeve, the head of the moment screw 4 breaks off upon reaching a sufficient tightness. If the metal of a wire to be connected is soft, the end of a moment screw deforms the wire and displaces some of the wire material, whereby the cross-section of the wire may become too small.
- loose quill 6 can be aluminium or soft annealed brass, which has a tin coating.
- the loose quill 6 has a bottom 6b which is preferably solid for further protection against corrosion.
- the quill 6 may have a conically flaring mouth 6a for facilitating the insertion of the end of a wire into the quill 6.
- the branch-wire connector shown in fig. 4 comprises a housing 7, which is provided with reception slots 8 for wires and to which is secured one or more C-shaped clamping pieces 9 by using one or more clamping screws 11.
- the clamping piece 9 has its ends 10 in line with the housing slots 8, the ends of wires to be connected or branched pressing against the walls of the slots 8 as the clamping piece 9 is tightened toward the housing 7 by means of the clamping screw 11.
- a loose quill 6' is fitted around the end of the copper wire, and the wire end, along with its loose quill 6', is placed in the slot 8.
- a proper material selection for the loose quill 6' can be used for eliminating corrosion without having to tin-plate the entire connector.
- the connector is made of aluminium and used as a connector between two copper wires, the loose quill 6' is placed in both slots 8 around the ends of wires to be connected.
- the loose quills 6 or 6' are manufactured in a plurality of diametral sizes to comply with the diameters of standard dimensioned wires, such that the wire can be readily inserted inside the quill 6 or 6'.
- the loose quill 6, 6' has a length which covers a necessary connection zone and, e.g. in the case of fig. 4, extends over the entire length of the slot 8, and preferably slightly beyond the end edges of the slot 8, in order to avoid a direct contact between the connector and the wire.
Landscapes
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
Description
- The present invention relates to a jointing sleeve provided with moment screws for splice connections in electric cables, said jointing sleeve comprising a housing, both ends of which are provided with quill-shaped spaces for receiving the ends of cables to be connected.
- This type of jointing sleeve is known e.g. from the Applicant's patent publication GB-2,266,628. It has proved to be a problem with such jointing sleeves that the softness or hardness of metals used in cables to be connected varies over such a wide range that the tightening torque of a moment screw for a secure and sufficient contact may cause an excessive size reduction in the cross-section of a soft wire (the wire to be connected is nearly severed).
- It is a principal object of the invention to provide an improved jointing sleeve, capable of substantially alleviating the above problem in such a way that the moment screw delivering a torque for a secure and sufficient contact does not sink too deep even within a soft cable material.
- This object is achieved by means of the invention on the basis of the characterizing features set forth in the annexed claim 1.
- The invention relates also to a branch-wire connector, comprising a housing provided with reception slots for wires, one or more C-shaped clamping pieces, the ends of which are in line with the slots of the housing, and one or more clamping screws for tightening the clamping piece or pieces toward the housing, the wires thereby pressing against the walls of the slots.
- Such connectors for branch wires are known to have a problem in terms of corrosion, particularly when connecting branch wires of copper with main cables of aluminium. Thus, the connector, which is typically made of aluminium, must be tin-plated. The same problem applies also to the above-mentioned jointing sleeve connections.
- It is an object of the invention to apply the invention used in relation to a jointing sleeve connection, also to a branch-wire connector in order to avoid the above corrosion problem, and possibly to omit the tin-plating process of a connector itself.
- This object is achieved by means of the invention on the basis of the characterizing features set forth in the annexed
claim 2. - The non-independent claims disclose preferred embodiments for the invention.
- The invention will now be described in more detail by way of exemplary embodiments, with reference to the accompanying drawings, wherein:
- fig. 1
- shows a perspective view of a jointing sleeve, to which the invention can be applied;
- fig. 2
- shows a jointing sleeve in a side view prior to inserting loose quills of the invention inside the jointing sleeve; and
- fig. 3
- shows the same jointing sleeve with
loose quills 6 inserted in place inside a jointing sleeve 1. - Fig. 4
- shows an end view of a branch-wire connector, applying the same invention of loose quills as that applied in the jointing sleeve of figs. 1-3.
- The jointing sleeve shown in fig. 1 is manufactured from a streamline tubing, both ends of which are provided with quill-
shaped spaces 5 for receiving the ends of electric cables to be connected as extensions of each other. In the middle of the jointing sleeve 1 is a pressure-proof partition 2, which is made from a loose disc whose middle section is pressed (flattened by pressing) after the insertion, such that the disc rims have expanded tightly against the inner surface of the sleeve aperture. - On either side of the
partition 2 there are two pieces of tappedholes 3 formoment screws 4. As themoment screw 4 is driven against the end of a wire or cable present within the sleeve, the head of themoment screw 4 breaks off upon reaching a sufficient tightness. If the metal of a wire to be connected is soft, the end of a moment screw deforms the wire and displaces some of the wire material, whereby the cross-section of the wire may become too small. - This problem is avoided by using
loose quills 6 shown in figs. 2 and 3, which are inserted from both ends of the jointing sleeve into the quill-shaped spaces 5. The material, hardness, and wall thickness of theloose quills 6 must be selected in such a way that the end of themoment screw 4 is capable of deforming the material of thequill 6 for a sound and secure contact, yet prevents the moment screw from penetrating too deep into the actual wire material. Practical tests have indicated that the best result is achieved by means of a thin tin-plated copper tube after softening the copper by annealing. The tube has a wall thickness within the range of 0,2-0,5 mm, most preferably within the range of 0,3-0,4 mm. As thequill 6 is tin-plated, the tin-plating of the housing 1 and thescrews 4 can be possibly omitted without deteriorating the joint through a corrosion hazard. - However, another possible material for the
loose quill 6 can be aluminium or soft annealed brass, which has a tin coating. - The
loose quill 6 has abottom 6b which is preferably solid for further protection against corrosion. Thequill 6 may have a conically flaring mouth 6a for facilitating the insertion of the end of a wire into thequill 6. - The branch-wire connector shown in fig. 4 comprises a
housing 7, which is provided withreception slots 8 for wires and to which is secured one or more C-shaped clamping pieces 9 by using one ormore clamping screws 11. Theclamping piece 9 has itsends 10 in line with thehousing slots 8, the ends of wires to be connected or branched pressing against the walls of theslots 8 as theclamping piece 9 is tightened toward thehousing 7 by means of theclamping screw 11. - If the question is e.g. about connecting a copper wire to an aluminium main cable, a loose quill 6' is fitted around the end of the copper wire, and the wire end, along with its loose quill 6', is placed in the
slot 8. Thus, a proper material selection for the loose quill 6' can be used for eliminating corrosion without having to tin-plate the entire connector. If the connector is made of aluminium and used as a connector between two copper wires, the loose quill 6' is placed in bothslots 8 around the ends of wires to be connected. - The
loose quills 6 or 6' are manufactured in a plurality of diametral sizes to comply with the diameters of standard dimensioned wires, such that the wire can be readily inserted inside thequill 6 or 6'. Theloose quill 6, 6' has a length which covers a necessary connection zone and, e.g. in the case of fig. 4, extends over the entire length of theslot 8, and preferably slightly beyond the end edges of theslot 8, in order to avoid a direct contact between the connector and the wire.
Claims (10)
- A jointing sleeve provided with moment screws (4) for splice connections in electric cables, said jointing sleeve comprising a housing (1), both ends of which are provided with quill-shaped spaces (5) for receiving the ends of cables to be connected, characterized in that the quill-shaped spaces (5) are fitted with loose quills (6), the ends of cables to be connected being insertible therein.
- A branch-wire connector, comprising a housing (7) provided with reception slots (8) for wires, one or more C-shaped clamping pieces (9), the ends (10) of which are in line with the slots (8) of the housing, and one or more clamping screws (11) for tightening the clamping piece or pieces (9) toward the housing (7), the wires thereby pressing against the walls of the slots (8), characterized in that at least one of the slots (8) is fitted with a loose quill (6'), the end of a wire to be connected being insertible therein.
- A jointing sleeve or a connector as set forth in claim 1 or 2, characterized in that the loose quill (6, 6') is made of copper which has a tin coating.
- A jointing sleeve or a connector as set forth in claim 3, characterized in that the copper comprises soft annealed copper.
- A jointing sleeve as set forth in claim 1 or a connector as set forth in claim 2, characterized in that the loose quill (6, 6') is made of aluminium.
- A jointing sleeve as set forth in claim 1 or a connector as set forth in claim 2, characterized in that the loose quill (6, 6') is made of soft annealed brass which has a tin coating.
- A jointing sleeve or a connector as set forth in any of claims 1-6, characterized in that the loose quill (6, 6') has a wall thickness which is within the range of 0,2-0,5 mm, most preferably within the range of 0,3-0,4 mm.
- A jointing sleeve or a connector as set forth in any of claims 1-7, characterized in that the loose quill (6, 6') has a solid bottom (6b).
- A jointing sleeve or a connector as set forth in any of claims 1-8, characterized in that the loose quill (6, 6') has a conically flaring mouth (6a).
- A jointing sleeve as set forth in any of claims 1 or 3-9, characterized in that the housing (1) is constituted by a streamline tubing, one of its sides being provided with four tapped holes (3) for four moment screws (4), the individual loose quill (6) extending to the working zone of two moment screws (4), and that the quill-shaped spaces (5) in the housing (1) are separated from each other by a partition (2).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI990311A FI105296B (en) | 1999-02-16 | 1999-02-16 | Splice hole or connector for electrical cable splice or branching connection |
FI990311 | 1999-02-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1030405A2 true EP1030405A2 (en) | 2000-08-23 |
EP1030405A3 EP1030405A3 (en) | 2002-08-07 |
Family
ID=8553784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00660017A Withdrawn EP1030405A3 (en) | 1999-02-16 | 2000-02-02 | Jointing sleeve or connector for splice or branch connections in electric cables |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1030405A3 (en) |
EE (1) | EE200000112A (en) |
FI (1) | FI105296B (en) |
HU (1) | HUP0000669A2 (en) |
NO (1) | NO20000751L (en) |
PL (1) | PL338161A1 (en) |
RU (1) | RU2000104084A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2128932A2 (en) * | 2008-05-27 | 2009-12-02 | Ridelin, S.L. | A mechanical compression electric connector for electric conductors |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2012200645A1 (en) * | 2011-02-08 | 2012-08-23 | Nexans | Arrangement with a Clamp of Metal Constructed as a Pipe Piece |
CN115241685B (en) * | 2022-08-17 | 2023-07-07 | 国网山东省电力公司临沭县供电公司 | High-altitude cable connecting terminal |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR885458A (en) * | 1942-04-29 | 1943-09-16 | Improvements to so-called <aluminium-cuivre> fittings for electrical lines | |
FR1088501A (en) * | 1953-11-30 | 1955-03-08 | Lug for connecting electric cables | |
US2806215A (en) * | 1953-11-04 | 1957-09-10 | Aircraft Marine Prod Inc | Aluminum ferrule-copper tongue terminal and method of making |
FR2479577A1 (en) * | 1980-03-28 | 1981-10-02 | Bonneau Albert | Electrical cable junction block - has spring biassed movable jaw which is releasable by simple screw action of applied tool |
GB2266628A (en) * | 1992-04-16 | 1993-11-03 | Sekko Ab Oy | Cable connector |
-
1999
- 1999-02-16 FI FI990311A patent/FI105296B/en active
-
2000
- 2000-01-31 PL PL00338161A patent/PL338161A1/en not_active Application Discontinuation
- 2000-02-02 EP EP00660017A patent/EP1030405A3/en not_active Withdrawn
- 2000-02-14 EE EEP200000112A patent/EE200000112A/en unknown
- 2000-02-15 HU HU0000669A patent/HUP0000669A2/en unknown
- 2000-02-15 NO NO20000751A patent/NO20000751L/en not_active Application Discontinuation
- 2000-02-15 RU RU2000104084/09A patent/RU2000104084A/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR885458A (en) * | 1942-04-29 | 1943-09-16 | Improvements to so-called <aluminium-cuivre> fittings for electrical lines | |
US2806215A (en) * | 1953-11-04 | 1957-09-10 | Aircraft Marine Prod Inc | Aluminum ferrule-copper tongue terminal and method of making |
FR1088501A (en) * | 1953-11-30 | 1955-03-08 | Lug for connecting electric cables | |
FR2479577A1 (en) * | 1980-03-28 | 1981-10-02 | Bonneau Albert | Electrical cable junction block - has spring biassed movable jaw which is releasable by simple screw action of applied tool |
GB2266628A (en) * | 1992-04-16 | 1993-11-03 | Sekko Ab Oy | Cable connector |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2128932A2 (en) * | 2008-05-27 | 2009-12-02 | Ridelin, S.L. | A mechanical compression electric connector for electric conductors |
EP2128932A3 (en) * | 2008-05-27 | 2011-04-20 | Ridelin, S.L. | A mechanical compression electric connector for electric conductors |
Also Published As
Publication number | Publication date |
---|---|
FI990311A0 (en) | 1999-02-16 |
PL338161A1 (en) | 2000-08-28 |
HU0000669D0 (en) | 2000-04-28 |
NO20000751L (en) | 2000-08-17 |
EE200000112A (en) | 2000-10-16 |
NO20000751D0 (en) | 2000-02-15 |
RU2000104084A (en) | 2002-01-27 |
FI105296B (en) | 2000-07-14 |
EP1030405A3 (en) | 2002-08-07 |
HUP0000669A2 (en) | 2001-02-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU641845B2 (en) | Connector twist tie | |
US5423699A (en) | Electrical connector | |
JPH0629050A (en) | Connecting clip | |
US20100227483A1 (en) | Midpoint cable electrical ground clamp | |
US6004165A (en) | Multiple cable connector and method therefor | |
US6261137B1 (en) | Conductor connection system | |
JPH0434269B2 (en) | ||
JP2007503683A (en) | Cable connection system | |
US4610503A (en) | Protective device for overhead wires containing optical fiber units | |
EP1030405A2 (en) | Jointing sleeve or connector for splice or branch connections in electric cables | |
US7008244B2 (en) | Earthing pipes | |
US20090075528A1 (en) | 90-Degree ferrule and pin terminals | |
EP0945926A3 (en) | Armor stop for metal clad cable connector | |
US5131861A (en) | Threaded terminal connector | |
US4334726A (en) | Bonding device | |
CA2461054C (en) | Electrical connector | |
JPH07506926A (en) | wire end sleeve | |
CZ2000472A3 (en) | Coupling sleeve or connector for coupling electric cables or connecting branches to electric cables | |
US11682850B2 (en) | Crimp terminal | |
US6695638B1 (en) | Electrical wire connector device | |
US4329537A (en) | Crimp-type cable shield bonding device | |
EP1349239A1 (en) | Earth connector for earthing pipes | |
KR200282259Y1 (en) | Heterogeneity metal sleeve | |
PL181418B1 (en) | Multiple-branch connector for twisted suspended leads | |
GB2381961A (en) | Improvements in earthing pipes |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
18W | Application withdrawn |
Withdrawal date: 20020531 |