WO2000033424A1 - Connector arrangement - Google Patents

Connector arrangement Download PDF

Info

Publication number
WO2000033424A1
WO2000033424A1 PCT/ZA1999/000131 ZA9900131W WO0033424A1 WO 2000033424 A1 WO2000033424 A1 WO 2000033424A1 ZA 9900131 W ZA9900131 W ZA 9900131W WO 0033424 A1 WO0033424 A1 WO 0033424A1
Authority
WO
WIPO (PCT)
Prior art keywords
connector
arrangement
spigot
contact
sleeve
Prior art date
Application number
PCT/ZA1999/000131
Other languages
French (fr)
Inventor
Jacob Van Pareen
Original Assignee
Smi Technology (Proprietary) Limited
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 Smi Technology (Proprietary) Limited filed Critical Smi Technology (Proprietary) Limited
Priority to AU15275/00A priority Critical patent/AU1527500A/en
Publication of WO2000033424A1 publication Critical patent/WO2000033424A1/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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/622—Screw-ring or screw-casing
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H01R13/6277—Snap or like fastening comprising annular latching means, e.g. ring snapping in an annular groove
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/631—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only

Definitions

  • THIS invention relates to a connector arrangement and more particularly to
  • a first connector part including a first electrical contact
  • a second connector part including a second electrical contact
  • the first and second connector parts comprising formations for
  • the first electrical contact arrangement may be provided on a spigot
  • the first connector part may include a body including the spigot and a
  • handle region formed integrally therewith from a suitable polymer material.
  • the second connector part may include a body including the sleeve and a
  • handle region formed integrally therewith from a suitable polymer material.
  • the first and second connector parts may be of elongate configuration
  • handle of the first connector part and the spigot may be axially aligned.
  • the handle of the second connector part and the sleeve may also be used.
  • the arresting formations may include a first thread on the spigot and a
  • the threads may be mutually
  • the threads are continuous screw
  • the threads may be configured to allow rotation or twisting of the
  • first and second parts relative to one another for between 90° and 360°
  • a cross sectional profile of the first thread may include first and second
  • a cross sectional profile of the second thread may include first and second
  • the second face extending substantially perpendicularly to a centre axis of
  • a cross-sectional profile of each thread includes first
  • the arresting formations may include first and second
  • a cross sectional profile of a rib in the first set of ribs may include first and
  • the first face facing towards a free end of the spigot and slanting towards
  • a cross sectional profile of a rib in the second set of ribs may include first
  • the connector part including:
  • a body including a first contact arrangement, a first conductor
  • figure 1 is a diagrammatic perspective view of a connector arrange ⁇
  • figure 2 is a similar view of the arrangement, but in a configuration
  • figure 3 is a side view of the arrangement in figure 1 , partially in
  • a connector arrangement according to the invention is generally designated
  • the connector arrangement 1 0 comprises a first
  • connector part 1 2 including an elongate body 1 4 including a handle portion
  • a first electrical contact arrangement 20 is
  • the contact arrangement includes a hollow
  • Wires or conductors 22 and 24 are connected to sleeves 26 and 32
  • the connector arrangement 1 0 further comprises a second connector part
  • the second connector part 34 includes a body 36 made of the
  • the body 36 includes a resiliently flexible sleeve 40
  • the sleeve 40 is
  • arrangement 38 includes a conductive spigot 44 removably receivable in
  • the second contact arrangement is
  • the connector arrangement 10 comprises an
  • the arrangement 50 comprises a screw thread 56
  • the profile of the threads is such that the faces 56.1 of the threads
  • thread 58 facing towards the handle 42 are substantially perpendicular to a longitudinal axis of the body 36. In other forms, both threads, when
  • viewed in transverse cross-section may have symmetrical face profiles on
  • sectional profiles as shown in figure 3 may be utilized.
  • the two connector parts 12,34 is still smaller than a force required to sever any one or more of the wires 24, 26, 48 and 49 or to separate them from

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)

Abstract

A connector arrangement (10) is disclosed and claimed. The arrangement comprises a first connector part (12) including a first electrical contact arrangement (20). Conductors (24, 22) are connected to the first connector part and terminate in the first electrical contact arrangement. A second connector part (34) includes a second electrical contact arrangement (38). Second conductors (48, 49) are connected to the second connector part and terminate in the second electrical contact arrangement. The first and second connector parts (12, 34) comprise formations (50) for arresting the first and second electrical contact arrangements in contact with one another. The formations are configured such that a straight line axial force F required to remove the first and second contact arrangements from one another is greater than a force required to bring the first and second contacts into contact with one another, but is less than a force required to sever or remove any one of the conductors from its respective contact arrangements.

Description

CONNECTOR ARRANGEMENT
TECHNICAL FIELD
THIS invention relates to a connector arrangement and more particularly to
a connector arrangement for an electronic or electric detonator arrangement
and/or a wired blasting system including such detonators.
SUMMARY OF THE INVENTION
According to the invention there is provided a connector arrangement
comprising:
a first connector part including a first electrical contact;
a first conductor connected to the first connector part and
terminating in the first electrical contact;
a second connector part including a second electrical contact;
- a second conductor connected to the second connector part and
terminating in the second electrical contact;
the first and second connector parts comprising formations for
arresting the first and second electrical contacts in contact with one
another; and
- the formations being configured such that a straight line axial force
required to remove the first and second contacts from one another is
greater than a force required to bring the first and second contacts
into contact with one another, but is less than a force required to sever or remove any one of the conductors from its respective
connector part.
The first electrical contact arrangement may be provided on a spigot
forming part of the first connector part and the second electrical contact
arrangement may be provided in a sleeve forming part of the second
connector part.
The first connector part may include a body including the spigot and a
handle region formed integrally therewith from a suitable polymer material.
The second connector part may include a body including the sleeve and a
handle region formed integrally therewith from a suitable polymer material.
The first and second connector parts may be of elongate configuration, the
handle of the first connector part and the spigot may be axially aligned.
Similarly, the handle of the second connector part and the sleeve may also
be axially aligned.
The arresting formations may include a first thread on the spigot and a
cooperating second thread in the sleeve. The threads may be mutually
cooperating interrupted threads. However, in a preferred embodiment, the threads are continuous screw
threads. The threads may be configured to allow rotation or twisting of the
first and second parts relative to one another for between 90° and 360°
(preferably between about 100° - 1 10°) to bring the first and second
contacts into contact with one another.
A cross sectional profile of the first thread may include first and second
faces extending transversely from the spigot and meeting in a ridge, the
first face facing towards a free end of the spigot and slanting towards the
ridge in a direction away from the free end of the spigot, and the second
face extending substantially perpendicularly to a centre axis of the spigot.
A cross sectional profile of the second thread may include first and second
faces meeting in a ridge, the first face facing towards an open end of the
sleeve and slanting in a direction away from the open end to the ridge, and
the second face extending substantially perpendicularly to a centre axis of
the sleeve.
In other embodiments, a cross-sectional profile of each thread includes first
and second faces extending symmetrically on either side of a ridge.
In yet other embodiments, the arresting formations may include first and
second sets of parallel ribs on the spigot and in the sleeve respectively. A cross sectional profile of a rib in the first set of ribs may include first and
second faces extending transversely from the spigot and meeting in a ridge,
the first face facing towards a free end of the spigot and slanting towards
the ridge in a direction away from the free end of the spigot, and the
second face extending substantially perpendicularly to a centre axis of the
spigot.
A cross sectional profile of a rib in the second set of ribs may include first
and second faces meeting in a ridge, the first face facing towards an open
end of the sleeve and slanting in a direction away from the open end of the
sleeve to the ridge, and the second face extending substantially
perpendicularly to a central axis of the sleeve.
Also included within the scope of the invention is a connector part for a
connector arrangement, the connector part including:
a body including a first contact arrangement, a first conductor
being connectable to the first contact arrangement to extend
from the body;
formations on the body for cooperating with formations on a
body of a second connector part, for arresting the first contact
arrangement in contact with a second contact arrangement
forming party of the second connector part; the formations being configured such that a straight line axial
force required to remove the first and second contacts from one
another is greater than a force required to bring the first and
second contacts into contact with one another, but is less than
a force required to sever or remove the first conductor from the
first contact arrangement.
BRIEF DESCRIPTION OF THE ACCOMPANYING DIAGRAMS
The invention will now further be described, by way of example only, with
reference to the accompanying diagrams wherein:
figure 1 is a diagrammatic perspective view of a connector arrange¬
ment according to the invention including first and second
connector parts in a configuration wherein an electrical contact
is made;
figure 2 is a similar view of the arrangement, but in a configuration
wherein the contact is broken; and
figure 3 is a side view of the arrangement in figure 1 , partially in
section, to illustrate means for arresting first and second
contact arrangements in contact with one another.
DESCRIPTION OF A PREFERRED EMBODIMENT OF THE INVENTION
A connector arrangement according to the invention is generally designated
by the reference numeral 10 in figures 1 to 3. As best shown in figure 2, the connector arrangement 1 0 comprises a first
connector part 1 2 including an elongate body 1 4 including a handle portion
1 6 and a spigot formation 1 8 formed integrally with the handle portion from
a suitable polymer material. A first electrical contact arrangement 20 is
provided on the spigot 1 8. The contact arrangement includes a hollow
conductive sleeve 26 mounted coaxially with a longitudinal axis of the
spigot formation and which sleeve is insulated by an annular part 28 of the
spigot formation from a coaxially mounted conductive outer sleeve 32.
Wires or conductors 22 and 24 are connected to sleeves 26 and 32
respectively.
The connector arrangement 1 0 further comprises a second connector part
34. The second connector part 34 includes a body 36 made of the
aforementioned material and including a second contact arrangement 38,
shown in figure 3. The body 36 includes a resiliently flexible sleeve 40
formed integrally with a solid handle region 42. The sleeve 40 is
dimensioned removably to receive the spigot 1 8. The second contact
arrangement 38 includes a conductive spigot 44 removably receivable in
sleeve 26 and a hollow conductive sleeve 46 for removably receiving outer
sleeve 32 of the first connector part. The second contact arrangement is
connected to wires 48 and 49 extending from body 36. As best shown in figure 3, the connector arrangement 10 comprises an
arrangement 50 for arresting the spigot 18 in the sleeve 40 and the first
contact arrangement 20 and second contact arrangement 38 in mating
contact relationship with one another. More particularly, the arrangement
50 is configured to enable relatively easy insertion of the spigot 18 into the
sleeve 40 to make contact, thereby to facilitate ease of use of the
connector arrangement, but to provide substantially more resistance to
removal of the spigot 18 from the sleeve with a straight line axial force F,
to prevent accidental separation of the aforementioned contact
arrangements.
In a first embodiment, the arrangement 50 comprises a screw thread 56
(shown in figures 2 and 3) towards the free end of spigot 18 and a co¬
operating screw thread 58 in sleeve 40, shown in figure 3 only.
In one form, the profile of the threads is such that the faces 56.1 of the
thread 56 facing towards the free or distal end of the spigot slant towards a
ridge 56.2 of the thread in a direction towards the handle. The faces 56.3
of the thread 56 facing towards the handle 1 6 are substantially
perpendicular to a longitudinal axis of the spigot. The faces 58.1 of the
thread 58 in the sleeve 40 facing the open end of the sleeve slant towards
a ridge 58.2 in a direction towards the handle 42. The faces 58.3 of the
thread 58 facing towards the handle 42 are substantially perpendicular to a longitudinal axis of the body 36. In other forms, both threads, when
viewed in transverse cross-section may have symmetrical face profiles on
either side of a ridge. In other embodiments parallel ribs with cross-
sectional profiles as shown in figure 3 may be utilized.
Referring again to the embodiment shown in figure 3, upon insertion of
spigot 18 into sleeve 40, the slanting faces of threads 56 and 58 cooperate
with one another to facilitate insertion of the spigot into the sleeve.
Alternatively, by twisting the parts 12 and 34 relative to one another and
using the threads 56,58, the contact arrangements 20,38 are brought into
mating contact with one another and rib 52 slips into groove 54. In the
configuration shown in figures 2 and 3, the electrical contact arrangements
20 and 38 co-operate with one another to make an electrical contact
between the wires 22, 24 on the one hand and the wires 48,49 on the
other.
In this position, the perpendicular faces 56.3, 58.3 of the threads 56 and
58 abut against one another. With these faces abutting against one
another, a substantially larger axial straight line force F is required to
separate the first and second connector parts 12,34 from one another
compared to the aforementioned forces required to insert the spigot 18 into
the sleeve 40. However, the straight line axial force required to separate
the two connector parts 12,34 is still smaller than a force required to sever any one or more of the wires 24, 26, 48 and 49 or to separate them from
their connections to the connector parts.
In order conveniently to remove the spigot 1 8 from the sleeve 40 and to
break the contact, the two connector parts 1 2 and 34 are rotated through
about 100° relative to one another about their longitudinal axes to utilize
the threads 56 and 58, to overcome the aforementioned abutting
perpendicular faces.
It will be appreciated that there are many variations in detail on the
connector arrangement according to the invention without departing from
the scope and spirit of the appended claims.

Claims

1 . A connector arrangement comprising:
a first connector part including a first electrical contact;
a first conductor connected to the first connector part and
terminating in the first electrical contact;
a second connector part including a second electrical contact;
a second conductor connected to the second connector part and
terminating in the second electrical contact;
the first and second connector parts comprising formations for
arresting the first and second electrical contacts in contact with
one another; and
the formations being configured such that a straight line axial
force required to remove the first and second contacts from one
another is greater than a force required to bring the first and
second contacts into contact with one another, but is less than
a force required to sever or remove any one of the conductors
from its respective connector part.
2. A connector arrangement as claimed in claim 1 wherein the first
electrical contact arrangement is provided on a spigot forming part of
the first connector part and the second electrical contact arrangement
is provided in a sleeve forming part of the second connector part.
3. A connector arrangement as claimed in claim 2 wherein the first
connector part includes a body including the spigot and a handle
region formed integrally therewith from a suitable polymer material.
4. A connector arrangement as claimed in claim 2 or claim 3 wherein
the second connector part includes a body including the sleeve and a
handle region formed integrally therewith from a suitable polymer
material.
5. A connector arrangement as claimed in any one of claims 2 to 4
wherein the arresting formations include a first thread on the spigot
and a cooperating second thread in the sleeve.
6. A connector arrangement as claimed in claim 5 wherein the threads
are continuous screw threads.
7. A connector arrangement as claimed in claim 6 wherein a cross
sectional profile of the first thread includes first and second faces
extending transversely from the spigot and meeting in a ridge, the
first face facing towards a free end of the spigot and slanting
towards the ridge in a direction away from the free end of the spigot,
and the second face extending substantially perpendicularly to a
central axis of the spigot.
. A connector arrangement as claimed in claim 6 or claim 7 wherein a
cross sectional profile of the second thread includes first and second
faces meeting in a ridge, the first face facing towards an open end of
the sleeve and slanting in a direction away from the open end to the
ridge, and the second face extending substantially perpendicularly to
a centre axis of the sleeve.
9. A connector arrangement as claimed in claim 6 wherein a cross-
sectional profile of each thread includes first and second faces
extending symmetrically on either side of a ridge.
10. A connector arrangement as claimed in any one of claims 2 to 4
wherein the arresting formations include first and second sets of
parallel ribs on the spigot and in the sleeve respectively.
1 1 . A connector arrangement as claimed in claim 10 wherein a cross
sectional profile of a rib in the first set of ribs includes first and
second faces extending transversely from the spigot and meeting in a
ridge, the first face facing towards a free end of the spigot and
slanting towards the ridge in a direction away from the free end of
the spigot, and the second face extending substantially
perpendicularly to a centre axis of the spigot.
2. A connector arrangement as claimed in claim 1 0 or claim 1 1 wherein
a cross sectional profile of a rib in the second set of ribs includes first
and second faces meeting in a ridge, the first face facing towards an
open end of the sleeve and slanting in a direction away from the open
end of the sleeve to the ridge, and the second face extending
substantially perpendicularly to a centre axis of the sleeve.
3. A connector part for a connector arrangement, the connector part
including:
- a body including a first contact arrangement, a first conductor
being connectable to the first contact arrangement to extend
from the body;
formations on the body for cooperating with formations on a
body of a second connector part, for arresting the first contact
arrangement in contact with a second contact arrangement
forming party of the second connector part;
the formations being configured such that a straight line axial
force required to remove the first and second contacts from one
another is greater than a force required to bring the first and
second contacts into contact with one another, but is less than
a force required to sever or remove the first conductor from the
first contact arrangement.
4. A connector arrangement substantially as herein described with
reference to the accompanying diagrams.
5. A connector part substantially as herein described with reference to
the accompanying diagrams.
PCT/ZA1999/000131 1998-12-03 1999-12-02 Connector arrangement WO2000033424A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU15275/00A AU1527500A (en) 1998-12-03 1999-12-02 Connector arrangement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA9811057 1998-12-03
ZA98/11057 1998-12-03

Publications (1)

Publication Number Publication Date
WO2000033424A1 true WO2000033424A1 (en) 2000-06-08

Family

ID=25587439

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ZA1999/000131 WO2000033424A1 (en) 1998-12-03 1999-12-02 Connector arrangement

Country Status (2)

Country Link
AU (1) AU1527500A (en)
WO (1) WO2000033424A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130174755A1 (en) * 2012-01-11 2013-07-11 Alliant Techsystems Inc. Connectors for separable firing unit assemblies, separable firing unit assemblies, and related methods
US8827738B2 (en) 2009-11-03 2014-09-09 Orica Explosives Technology Pty Ltd Connector, and methods of use

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3901574A (en) * 1971-12-30 1975-08-26 Amp Inc Electrical connector
FR2479580A1 (en) * 1980-03-27 1981-10-02 Alsthom Cgee TERMINAL BLOCK WITH CONTACT PLUG
US4900260A (en) * 1986-04-11 1990-02-13 Drogo Pierre L M Electrical conductor
DE4441274C1 (en) * 1994-11-19 1995-10-19 Fraunhofer Ges Forschung Safety device with segmented screw thread for pluggable connector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3901574A (en) * 1971-12-30 1975-08-26 Amp Inc Electrical connector
FR2479580A1 (en) * 1980-03-27 1981-10-02 Alsthom Cgee TERMINAL BLOCK WITH CONTACT PLUG
US4900260A (en) * 1986-04-11 1990-02-13 Drogo Pierre L M Electrical conductor
DE4441274C1 (en) * 1994-11-19 1995-10-19 Fraunhofer Ges Forschung Safety device with segmented screw thread for pluggable connector

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8827738B2 (en) 2009-11-03 2014-09-09 Orica Explosives Technology Pty Ltd Connector, and methods of use
US20130174755A1 (en) * 2012-01-11 2013-07-11 Alliant Techsystems Inc. Connectors for separable firing unit assemblies, separable firing unit assemblies, and related methods
US8863665B2 (en) * 2012-01-11 2014-10-21 Alliant Techsystems Inc. Connectors for separable firing unit assemblies, separable firing unit assemblies, and related methods
US9664491B2 (en) 2012-01-11 2017-05-30 Orbital Atk, Inc. Connectors for separable firing unit assemblies, firing unit assemblies and related methods

Also Published As

Publication number Publication date
AU1527500A (en) 2000-06-19

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