WO2001039334A1 - Electrical connector - Google Patents

Electrical connector Download PDF

Info

Publication number
WO2001039334A1
WO2001039334A1 PCT/NL2000/000857 NL0000857W WO0139334A1 WO 2001039334 A1 WO2001039334 A1 WO 2001039334A1 NL 0000857 W NL0000857 W NL 0000857W WO 0139334 A1 WO0139334 A1 WO 0139334A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
sleeve
connector according
ridge
hooked edge
Prior art date
Application number
PCT/NL2000/000857
Other languages
French (fr)
Inventor
Franciscus Hendricus Leendertse
Daniel De Waard
Original Assignee
Fokker Elmo B.V.
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 Fokker Elmo B.V. filed Critical Fokker Elmo B.V.
Priority to EP00986084A priority Critical patent/EP1147576A1/en
Priority to CA002360737A priority patent/CA2360737A1/en
Priority to AU22381/01A priority patent/AU2238101A/en
Publication of WO2001039334A1 publication Critical patent/WO2001039334A1/en

Links

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
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/5804—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part

Definitions

  • the invention relates to a connector comprising a housing having at least one contact element to which an electrical conductor can be fixed, as well as a strain relief, connected to the housing, for transmitting tensile forces between the electrical conductor and the housing.
  • a connector of this type is known.
  • This known connector has a number of sockets, each of which is connected to an electrical conductor.
  • the electrical conductors together form a bundle that is firmly connected to the housing by means of the strain relief.
  • the strain relief is constructed as a separate ring that is screwed onto the back of the housing and has a clamp for clamping the bundle. Said clamp has two halves, which are fixed to one another by means of screws.
  • This known connector has various disadvantages. The costs are fairly high, if only because of the relatively large number of components and the complex shape of the strain relief and the housing. Moreover, the electrical conductivity of the connection between strain relief and housing is less good, which is a disadvantage especially in the case of bundles that have been protected against electromagnetic pulses by means of a metal screen.
  • the aim of the invention is to provide a connector of the type described above that does not have these disadvantages. Said aim is achieved in that the strain relief comprises a sleeve which consists of at least one part, is able to engage on the electrical conductor and is connected to the housing by means of an interlocking hook connection.
  • the strain relief constructed as a sleeve can be fixed to the housing without supplementary components such as screws or brackets, which enables efficient and inexpensive connection between the connector and the cable.
  • the interlocking hook connection preferably comprises at least one hook element on the housing or the sleeve as well as at least one hook element on the other of these two components, i.e. said sleeve or said housing.
  • the housing can comprise a ring constructed as an integral whole therewith and having an inward-facing hooked edge and the sleeve can have an outward-facing hooked edge that is hooked behind the inward- facing hooked edge of the housing.
  • the ring can have a lip constructed as an integral whole therewith, which lip protrudes in the axial direction of the housing and extends over a portion of the ring, in the peripheral direction thereof. Said ring provides supplementary support for the sleeve, as a result of which the strain relief is further stabilised.
  • the lip can have an inward- facing ridge and the sleeve can have a corresponding recess in which the ridge can be accommodated.
  • Very reliable fixing of the sleeve to the housing is obtained if the ridge is offset in the axial direction of the housing relative to the hooked edge.
  • the hooked edge and the ridge of the housing are located opposite one another, whilst the hooked edge and the recess in the sleeve are correspondingly located opposite one another. The sleeve is thus locked in a stable manner between the hooked edge and the ridge of the housing.
  • the sleeve can be constructed in various ways. According to a first possibility, the sleeve can be in one piece and slit in the longitudinal direction. When fitting the sleeve between the hooked edge and the ridge of the housing, the sleeve can initially be compressed. The sleeve is then able to spring back into shape, such that it becomes rigidly held behind said hooked edge and ridge.
  • the sleeve consists of two identical sleeve halves. These sleeve halves can be held together in contact with the electrical conductor(s) by means of a tensioning element.
  • tensioning element can also be used with the split sleeve consisting of one piece.
  • the internal passage in the sleeve can be made such that it gradually narrows, in order to obtain uniform clamping of the electrical conductor.
  • the housing can comprise an outer shell and a plug which is constructed as an integral whole with the outer shell and incorporates the at least one contact element.
  • Figure 1 shows a longitudinal section through the housing of the connector according to the invention.
  • Figure 2 shows a longitudinal section through a sleeve.
  • Figure 3 shows a longitudinal section through the assembly of housing and sleeve.
  • Figure 4 shows a rear view of the housing according to Figure 1.
  • Figure 5 shows a front view of a sleeve consisting of two halves.
  • Figure 6 shows a front view of a sleeve consisting of one piece.
  • the connector according to the invention comprises the housing 1 shown in Figure 1 and the sleeve 2 shown in Figure 2, which sleeve 2 comprises two sleeve halves 3, 4.
  • the housing 1 consists of one piece and comprises an outer shell 5 as well as a plug 6 provided with passages 7 in each of which one electrical contact element 8 is located.
  • the plug is readily accessible so that the electrical conductors 18 can be fixed to the contact elements 8 quickly and easily.
  • the housing comprises an integral ring 9, which has a hooked edge 10.
  • Each of the sleeve halves 3, 4 also has a hooked edge 13 and a recess 14.
  • the hooked edge 13 and recess 14 are axially offset with respect to one another, corresponding to the axial distance between the hooked edge 10 of the housing 1 and the ridge 12 on the lip 11 thereof.
  • the hooked edge 13 of the one sleeve half 3 is hooked behind the hooked edge 10 of the housing 1.
  • the ridge 12 on the lip 11 of the housing 1 is accommodated in the recess 14 of the other sleeve half 4.
  • the sleeve halves 3, 4 have a narrowing internal passage, defined by the curved internal walls 15. As shown in Figure 3, the cable, indicated in its entirety by 16, can be firmly clamped by this means. To this end the sleeve halves 3, 4 are forced towards one another by means of the pretensioning element 17.
  • the sleeve halves 3, 4 thus act as strain relief, by means of which any tensile forces in the cable 16 are transmitted directly thereto via the hooked edge 10 and the ridge 12 of the housing 1, without any strain being exerted on the electrical conductors 18.
  • the sleeve 2 according to Figure 5 consisting of two separate halves 3, 4, has been discussed above, the one-piece sleeve according to Figure 6 can also be used.
  • Said one-piece sleeve has a longitudinal slit 17 and consequently is able to be elastically compressed and then spring back, such that the hooked edge 13 can engage behind the hooked edge 10.

Landscapes

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

Abstract

A connector comprises a housing having at least one contact element to which an electrical conductor can be fixed, as well as a strain relief, connected to the housing, for transmitting tensile forces between the electrical conductor and the housing. The strain relief comprises a sleeve which consists of at least one part, is able to engage on the electrical conductor and is connected to the housing by means of an interlocking hook connection.

Description

ELECTRICAL CONNECTOR
The invention relates to a connector comprising a housing having at least one contact element to which an electrical conductor can be fixed, as well as a strain relief, connected to the housing, for transmitting tensile forces between the electrical conductor and the housing.
A connector of this type is known. This known connector has a number of sockets, each of which is connected to an electrical conductor. The electrical conductors together form a bundle that is firmly connected to the housing by means of the strain relief. By this means, the electrical connection between each conductor and socket is protected against mechanical stresses.
The strain relief is constructed as a separate ring that is screwed onto the back of the housing and has a clamp for clamping the bundle. Said clamp has two halves, which are fixed to one another by means of screws. This known connector has various disadvantages. The costs are fairly high, if only because of the relatively large number of components and the complex shape of the strain relief and the housing. Moreover, the electrical conductivity of the connection between strain relief and housing is less good, which is a disadvantage especially in the case of bundles that have been protected against electromagnetic pulses by means of a metal screen.
The aim of the invention is to provide a connector of the type described above that does not have these disadvantages. Said aim is achieved in that the strain relief comprises a sleeve which consists of at least one part, is able to engage on the electrical conductor and is connected to the housing by means of an interlocking hook connection. The strain relief constructed as a sleeve can be fixed to the housing without supplementary components such as screws or brackets, which enables efficient and inexpensive connection between the connector and the cable. The interlocking hook connection preferably comprises at least one hook element on the housing or the sleeve as well as at least one hook element on the other of these two components, i.e. said sleeve or said housing.
In order as far as possible to restrict the number of separate components in the connector, the housing can comprise a ring constructed as an integral whole therewith and having an inward-facing hooked edge and the sleeve can have an outward-facing hooked edge that is hooked behind the inward- facing hooked edge of the housing.
Furthermore, the ring can have a lip constructed as an integral whole therewith, which lip protrudes in the axial direction of the housing and extends over a portion of the ring, in the peripheral direction thereof. Said ring provides supplementary support for the sleeve, as a result of which the strain relief is further stabilised. The lip can have an inward- facing ridge and the sleeve can have a corresponding recess in which the ridge can be accommodated.
Very reliable fixing of the sleeve to the housing is obtained if the ridge is offset in the axial direction of the housing relative to the hooked edge. The hooked edge and the ridge of the housing are located opposite one another, whilst the hooked edge and the recess in the sleeve are correspondingly located opposite one another. The sleeve is thus locked in a stable manner between the hooked edge and the ridge of the housing.
The sleeve can be constructed in various ways. According to a first possibility, the sleeve can be in one piece and slit in the longitudinal direction. When fitting the sleeve between the hooked edge and the ridge of the housing, the sleeve can initially be compressed. The sleeve is then able to spring back into shape, such that it becomes rigidly held behind said hooked edge and ridge.
According to a second possibility the sleeve consists of two identical sleeve halves. These sleeve halves can be held together in contact with the electrical conductor(s) by means of a tensioning element.
Such a tensioning element can also be used with the split sleeve consisting of one piece.
The internal passage in the sleeve can be made such that it gradually narrows, in order to obtain uniform clamping of the electrical conductor.
The housing can comprise an outer shell and a plug which is constructed as an integral whole with the outer shell and incorporates the at least one contact element.
The invention will be explained in more detail below with reference to an illustrative embodiment of the connector shown in the figures. Figure 1 shows a longitudinal section through the housing of the connector according to the invention.
Figure 2 shows a longitudinal section through a sleeve.
Figure 3 shows a longitudinal section through the assembly of housing and sleeve. Figure 4 shows a rear view of the housing according to Figure 1.
Figure 5 shows a front view of a sleeve consisting of two halves.
Figure 6 shows a front view of a sleeve consisting of one piece.
The connector according to the invention comprises the housing 1 shown in Figure 1 and the sleeve 2 shown in Figure 2, which sleeve 2 comprises two sleeve halves 3, 4. The housing 1 consists of one piece and comprises an outer shell 5 as well as a plug 6 provided with passages 7 in each of which one electrical contact element 8 is located.
The plug is readily accessible so that the electrical conductors 18 can be fixed to the contact elements 8 quickly and easily. The housing comprises an integral ring 9, which has a hooked edge 10. A lip 11, that has an inward-facing ridge 12, protrudes with respect to the ring 9.
Each of the sleeve halves 3, 4 also has a hooked edge 13 and a recess 14. The hooked edge 13 and recess 14 are axially offset with respect to one another, corresponding to the axial distance between the hooked edge 10 of the housing 1 and the ridge 12 on the lip 11 thereof.
As shown in Figure 3, the hooked edge 13 of the one sleeve half 3 is hooked behind the hooked edge 10 of the housing 1. The ridge 12 on the lip 11 of the housing 1 is accommodated in the recess 14 of the other sleeve half 4.
The sleeve halves 3, 4 have a narrowing internal passage, defined by the curved internal walls 15. As shown in Figure 3, the cable, indicated in its entirety by 16, can be firmly clamped by this means. To this end the sleeve halves 3, 4 are forced towards one another by means of the pretensioning element 17.
The sleeve halves 3, 4 thus act as strain relief, by means of which any tensile forces in the cable 16 are transmitted directly thereto via the hooked edge 10 and the ridge 12 of the housing 1, without any strain being exerted on the electrical conductors 18.
Although the sleeve 2 according to Figure 5, consisting of two separate halves 3, 4, has been discussed above, the one-piece sleeve according to Figure 6 can also be used. Said one-piece sleeve has a longitudinal slit 17 and consequently is able to be elastically compressed and then spring back, such that the hooked edge 13 can engage behind the hooked edge 10.

Claims

Claims
1. Connector comprising a housing (1) having at least one contact element (8) to which an electrical conductor (18) can be fixed, as well as a strain relief (2), connected to the housing (1), for transmitting tensile forces between the electrical conductor (18) and the housing (1), characterised in that the strain relief (2) comprises a sleeve (2) which consists of at least one part, is able to engage on the electrical conductor (18) and is connected to the housing (1) by means of an interlocking hook connection (10, 13).
2. Connector according to Claim 1 , wherein the interlocking hook connection comprises at least one hook element (10) on the housing (1) as well as at least one hook element (13) on the sleeve (2).
3. Connector according to Claim 2, wherein the housing (1) comprises a ring (9) constructed as an integral whole therewith and having an inward-facing hooked edge (10) and the sleeve (2) has an outward- facing hooked edge (13) that is hooked behind the inward-facing hooked edge (10) of the housing (1).
4. Connector according to Claim 2, wherein the ring (9) has a lip (11) constructed as an integral whole therewith, which lip (11) protrudes in the axial direction of the housing (1) and extends over a portion of the ring (9), in the peripheral direction thereof.
5. Connector according to Claim 4, wherein the lip (11) has an inward- facing ridge (12) and the sleeve (2) has a corresponding recess (14) in which the ridge (12) can be accommodated.
6. Connector according to Claim 5, wherein the ridge (12) is offset in the axial direction of the housing (1) relative to the hooked edge (10) thereof.
7. Connector according to Claim 6, wherein the ridge (12) is further away from the housing (1) than is the hooked edge (10).
8. Connector according to Claim 5, 6 or 7, wherein the hooked edge (10) and the ridge (12) of the housing (1) are located opposite one another.
9. Connector according to Claim 5, 6, 7 or 8, wherein the recess (4) of the sleeve (2) is offset, in the axial direction of the housing (1), with respect to the hooked edge (13) thereof.
10. Connector according to Claim 9, wherein the hooked edge (13) and the recess (14) in the sleeve (2) are located opposite one another.
11. Connector according to one of the preceding claims, wherein the sleeve consists of one piece and is slit in the longitudinal direction.
12 Connector according to one of the preceding Claims 1-8, wherein the sleeve (2) consists of two identical sleeve halves (3, 4).
13. Connector according to Claim 11 or 12, wherein, on the outer surface of the lip (11), the ridge (12) together with the recess (14) in the sleeve (2) forms a circular groove in which a tensioning element (17) is located for clamping the sleeve (2) on the electrical conductor(s).
14. Connector according to one of the preceding claims, wherein the internal passage in the sleeve (2) is made such that it gradually narrows in the direction of the housing (1).
15. Connector according to one of the preceding claims, wherein the housing (1) comprises an outer shell (5) and a plug (6) which is constructed as an integral whole with the outer shell (5) and incorporates the at least one contact element (8).
16. Connector according to one of the preceding claims, wherein the internal passage in the sleeve (2) is curved towards the side of the housing.
PCT/NL2000/000857 1999-11-23 2000-11-23 Electrical connector WO2001039334A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP00986084A EP1147576A1 (en) 1999-11-23 2000-11-23 Electrical connector
CA002360737A CA2360737A1 (en) 1999-11-23 2000-11-23 Electrical connector
AU22381/01A AU2238101A (en) 1999-11-23 2000-11-23 Electrical connector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1013650A NL1013650C2 (en) 1999-11-23 1999-11-23 Connector
NL1013650 1999-11-23

Publications (1)

Publication Number Publication Date
WO2001039334A1 true WO2001039334A1 (en) 2001-05-31

Family

ID=19770312

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2000/000857 WO2001039334A1 (en) 1999-11-23 2000-11-23 Electrical connector

Country Status (5)

Country Link
EP (1) EP1147576A1 (en)
AU (1) AU2238101A (en)
CA (1) CA2360737A1 (en)
NL (1) NL1013650C2 (en)
WO (1) WO2001039334A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006076985A1 (en) * 2004-12-06 2006-07-27 Itt Manufacturing Enterprises Inc. Device for a machine
WO2007089593A1 (en) * 2006-01-26 2007-08-09 Molex Incorporated Connector cover with fastener
US20110100708A1 (en) * 2008-06-24 2011-05-05 Justus Lamprecht Cable sleeve for a hand-held power tool
US9769551B2 (en) 2014-12-31 2017-09-19 Skullcandy, Inc. Method of connecting cable to headphone, and headphone formed using such methods

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9634475B2 (en) 2014-11-17 2017-04-25 Caterpillar Inc. Strain relief device for a harness or cable

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2472986A (en) * 1946-05-23 1949-06-14 Jr Emil E Reder Cord protector and strain reliever for use with electrical connectors
US2750571A (en) * 1952-05-13 1956-06-12 Rodale Mfg Company Inc Connector
US4281887A (en) * 1979-02-28 1981-08-04 The Bendix Corporation Electrical connector
US4488769A (en) * 1982-04-30 1984-12-18 Siemens Aktiengesellschaft Modular plug
US4526435A (en) * 1981-08-28 1985-07-02 Cgee Alsthom Cable clamping device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2472986A (en) * 1946-05-23 1949-06-14 Jr Emil E Reder Cord protector and strain reliever for use with electrical connectors
US2750571A (en) * 1952-05-13 1956-06-12 Rodale Mfg Company Inc Connector
US4281887A (en) * 1979-02-28 1981-08-04 The Bendix Corporation Electrical connector
US4526435A (en) * 1981-08-28 1985-07-02 Cgee Alsthom Cable clamping device
US4488769A (en) * 1982-04-30 1984-12-18 Siemens Aktiengesellschaft Modular plug

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006076985A1 (en) * 2004-12-06 2006-07-27 Itt Manufacturing Enterprises Inc. Device for a machine
WO2007089593A1 (en) * 2006-01-26 2007-08-09 Molex Incorporated Connector cover with fastener
US20110100708A1 (en) * 2008-06-24 2011-05-05 Justus Lamprecht Cable sleeve for a hand-held power tool
US8822845B2 (en) * 2008-06-24 2014-09-02 Robert Bosch Gmbh Cable sleeve for a hand-held power tool
US9769551B2 (en) 2014-12-31 2017-09-19 Skullcandy, Inc. Method of connecting cable to headphone, and headphone formed using such methods

Also Published As

Publication number Publication date
EP1147576A1 (en) 2001-10-24
NL1013650C2 (en) 2001-05-30
CA2360737A1 (en) 2001-05-31
AU2238101A (en) 2001-06-04

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