We Claim:
1. A cable connector for connecting a cable having a central conductor, comprising:
a cylindrical outer shell;
5 an external conductive body mounted at least partially within the outer shell and defining
a first accommodating cavity, a first through hole being formed in a wall of the external
conductive body;
an insulating housing provided in the first accommodating cavity and defining a second
accommodating cavity, a second through hole being formed in a wall of the insulating housing;
10 an internal conductive body provided in the second accommodating cavity and defining
an insertion cavity, wherein the internal conductive body is electrically isolated from the
external conductive body by the insulating housing, and a connection hole is formed in the
wall of the internal conductive body and in communication with the insertion cavity, and the
external conductive body, the insulating housing, and the internal conductive body are
15 positioned so that the first through hole and the second through hole are aligned radially with
the connection hole;
a fastener mounted at least partially in the connection hole and operable to fasten the
central conductor of the cable, which is be inserted into the insertion cavity, in the insertion
cavity; and
20 an insulation ring fitted over an outer circumferential surface of the external conductive
body and movable between a shielding position, in which the insulation ring covers the first
through hole, and a non-shielding position, in which the first through hole is not covered by
the insulation ring so as to allow a portion of the fastener positioned in the connection hole to
be exposed from the first through hole and second through hole which are aligned with each
25 other.
2. The cable connector according to claim 1, wherein, the wall of the insulation ring is
provided with a third through hole,
in the shielding position, the third through hole is spaced apart from the first through hole
30 in a circumferential direction so that the insulation ring covers the first through hole, and
in the non-shielding position, the third through hole is aligned radially with the first
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through hole so as to allow the fastener positioned in the connection hole to be exposed from
the first through hole, second through hole and third through hole which are aligned with one
another.
5 3. The cable connector according to claim 2, wherein, the first through hole, second
through hole and third through hole are constructed to allow an operating tool to extend
through the first through hole, second through hole and third through hole to operate the
fastener positioned in the connection hole so as to fasten the central conductor inserted into
the insertion cavity.
10
4. The cable connector according to claim 1, wherein one of a guide groove and a guide
rib is formed on the outer circumferential surface of the external conductive body, and the
other of the guide groove and the guide rib is formed on the inner wall surface of the insulation
ring, the guide rib being slidable in the guide groove.
15
5. The cable connector according to claim 1, wherein one of a locking groove and a
locking protrusion is formed on the outer circumferential surface of the external conductive
body, and the other of the locking groove and the locking protrusion is formed on an inner
wall surface of the insulation ring, and the locking protrusion is configured to be embedded
20 and locked in the locking groove in at least one of the shielding position and the non-shielding
position.
6. The cable connector according to claim 4, wherein the outer circumferential surface
of the external conductive body is provided with a step which include adjacent step surfaces
25 and a wall surface located between the step surfaces, one of the step surfaces is formed with
the guide groove, and the insulation ring is axially positioned between the wall surface and
the guide groove.
7. The cable connector according to any one of claims 1-6, wherein the fastener has a
30 first end positioned within the second receiving cavity and an opposite second end positioned
within the insertion cavity, the first end is at least partially exposed from the first through hole
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and second through hole which are aligned with each other, and the fastener is operable to
cause the second end to press the central conductor which is inserted into the insertion cavity.
8. The cable connector according to claim 7, wherein the outer diameter of the first end
5 of the fastener is greater than the inner diameter of the second through hole so that the first
end is configured to be stopped by the inner wall of the second accommodating cavity.
9. The cable connector according to claim 8, wherein the cable connector further
comprises a pressing spacer positioned in the insertion cavity, and wherein the pressing spacer
10 comprises a pressing surface configured to be pressed against the outer circumferential surface
of the central conductor, and the pressing spacer is configured to be pushed by the fastener to
press the inserted central conductor onto the inner wall of the insertion cavity by the pressing
surface.
15 10. The cable connector according to claim 9, wherein the pressing spacer is configured
to be mounted to the second end of the fastener so as to move together with the fastener when
the fastener is operated to move radially.
11. The cable connector according to claim 10, wherein the pressing spacer has a U20 shaped contour and includes a first arm portion and a second arm portion which are opposite
to each other, the first arm portion is provided with an installation hole, the second end of the
fastener is suitable for being mounted in the installation hole via an open end of the U-shaped
contour, and the pressing surface is defined by a flat or curved surface of the second arm
portion facing the inserted central conductor.
25
12. The cable connector according to claim 10, wherein, the pressing spacer includes a
bottom and two limit portions extending from opposite sides of the bottom towards each other,
the pressing surface is defined by a flat or curved surface of the bottom facing the inserted
central conductor, and
30 the two limiting portions are spaced apart from each other to define an installation hole
therebetween, and the second end of the fastener is configured to be mounted in the
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installation hole and to be limited in position by the two limit portions so as to prevent the
fastener from radially detaching from the pressing spacer.
13. The cable connector according to claim 12, wherein, each limit portion has a C5 shaped contour having a first end connected to the bottom and an opposite second end
extending towards the other limit portion, and each limit portion comprises at its second end
an extension portion extending towards the other limit portion, and the distance between the
extension portions of the two limit portions is smaller than the outer diameter of the second
end of the fastener.
10
14. The cable connector according to any one of claims 1-6 and 8-13, wherein the cable
also comprises an outer braid layer, and the insulation ring is positioned so that the outer braid
layer of the cable inserted into the cable connector is placed on an outer circumferential
surface of the insulation ring so as to be positioned between the insulation ring and the outer
15 shell, and in the shielding position, the insulation ring electrically isolates the fastener
positioned in the connection hole from the outer braided layer.
15. The cable connector according to any one of claims 1-6 and 8-13, wherein the cable
connector is a dual port connector with two said insertion cavities or a three port connector
20 with three said insertion cavities.