JP2016046108A - Cable holding member for high frequency coaxial connector and holding mechanism using holding member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve such a problem that, in a configuration in which a protrusion portion is formed in a caulking part of a connector for confining the radius of curvature of an optical cable within an allowable range and this protrusion portion is made to protrude from the interface of an optical connector to the outside, a manufacturing process becomes complicated.SOLUTION: A cable holding member for a high frequency coaxial connector includes an insertion hole (1) of a coaxial cable (A). One end (2) of the insertion hole (1) is continued to an opening (4) via an arc-shaped cross section part (3) in which a peripheral wall surface of the insertion hole (1) is enlarged in an axial direction (x) of the insertion hole (1). Then, at the other end of the insertion hole, a connection part with a connector is provided.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a cable holding member for a high-frequency coaxial connector and a holding mechanism using the holding member, and is intended to prevent breakage of the braided outer coating plated with a coaxial cable, which is often bent and wired from the connector. It relates to what was made.

  The portion of the optical cable extending from the optical connector is covered with a protruding portion from the caulked portion in the optical connector to the outside from the boundary surface of the optical connector so that it does not exceed the minimum allowable bending radius, and further, the portion extending from this protruding portion Patent Document 1 discloses a technical idea of covering with a corrugated tube fitted to the protruding portion.

JP, 2014-98823, A: See paragraphs 0032 and 0041.

  In Patent Document 1, it is necessary to form a protruding portion in a caulking portion to which an optical cable is coupled, and to install this caulking portion in an optical connector and to project this protruding portion outward from the boundary surface of the optical connector. Become.

According to the present invention, a cable holding member for a high-frequency coaxial connector that guides a coaxial cable portion so as not to exceed the minimum allowable bending radius is configured separately from the connector main body, and is attached to the connector main body in use. It is an object of the present invention to make it easier to prevent the deviation of the minimum allowable bending radius of the coaxial cable in service.

(Claim 1) A cable holding member for a high-frequency coaxial connector according to the present invention includes an insertion hole for a coaxial cable. One end portion of the insertion hole continues to the opening portion through an arcuate cross section in which the peripheral wall surface of the insertion hole expands along the axial direction of the insertion hole. And the connection part with a connector is provided in the other end part of this penetration hole.

This holding member is configured separately from the connector body. In use, the coaxial cable is passed through the insertion hole from the other end side, extended from the one end side to the outside, and coupled to the connector at the connection portion. Since the coaxial cable extends to the outside from the opening that continues through the circular arc section whose diameter increases in the axial direction of the insertion hole, the coaxial cable can be bent with a curvature equal to or less than the radius of curvature of the circular arc section. Therefore, there is no possibility that the plated net-like outer conductor is broken.

(Claim 2) The radius of curvature of the arcuate cross section may be 5 to 6 mm.
In this way, even when arranged in a narrow space, the radius of curvature does not become extremely small, so that breakage of the outer conductor can be effectively suppressed.

(Claim 3) The connecting portion may be a diameter-enlarged concave portion that extends from the other end portion toward the one end portion.
In this case, since the connection to the connector can be performed by press fitting, it can be easily attached and detached.

(Claim 4) The diameter-enlarged recessed portion may be a circular groove, and a female screw may be provided on a peripheral wall surface.
In this case, since the cable holding member can be screwed to the connector, the cable holding member is not likely to be detached from the connector even when subjected to vibration or the like in the mounted state.

(Claim 5) The high frequency coaxial connector cable holding mechanism according to the present invention employs the high frequency coaxial connector cable holding member according to claim 1. The connecting portion of the cable holding member is connected to a connected portion formed at one end of the shell of a connector in which a center contact is installed on its own axis via an insulating material and a shell. And the coaxial cable which connected the center conductor to this center contact is extended outside from this opening part of this high frequency coaxial connector cable holding member.
According to this holding mechanism, since the holding member is separate from the connector, the degree of freedom in structure is increased and there are few restrictions on use.

(Claim 6) The connecting portion is a female screw formed on the peripheral wall surface of the enlarged-diameter recessed portion facing the one end portion from the other end portion, and the connected portion is a male screw formed on the outer periphery of the one end portion of the shell. It has become.
In this case, since the cable holding member and the shell are connected by screwing, it is possible to prevent the coupling from loosening or coming off even with respect to vibration.

According to the present invention, the holding member is configured separately from the connector main body, and in use, the coaxial cable is passed through the insertion hole from the other end side and extended from the one end side to the outside. Therefore, it does not bend with a radius of curvature smaller than the radius of curvature of the arc-shaped cross section, and there is no possibility that the plated mesh outer conductor is broken.

According to the second aspect, since the radius of curvature does not become extremely small even when arranged in a narrow space, it is possible to effectively prevent the outer conductor from being broken.

According to the third aspect, since the connection to the connector can be performed by press fitting, it can be easily attached and detached.

According to the fourth aspect, since the cable holding member can be screwed to the connector, the cable holding member is not likely to be detached from the connector even when subjected to vibration or the like in the mounted state.

According to the cable holding mechanism for the high-frequency coaxial connector of the fifth aspect, since the holding member is separate from the connector, the degree of freedom of the structure is increased, and there are few restrictions on use.

According to the sixth aspect, since the connection between the cable holding member and the shell is screwed, it is possible to prevent the coupling from loosening or coming off even with respect to vibration.

It is a front view which cut | disconnects and shows the specific example of the cable holding member for high frequency coaxial connectors concerning this invention. It is a left view of FIG. It is a front view which cut | disconnects and shows the upper half of the connector used as the other party to which the cable holding member for high frequency coaxial connectors concerning this invention is connected. It is a front view which cut | disconnects and shows the specific example of the cable holding mechanism for high frequency coaxial connectors using the cable holding member for high frequency coaxial connectors concerning this invention. It is a front view which shows the test example of the state which applied the vertical load to the cable using it. FIG. 5 is a right side view of FIG. 4. It is a front view of the state which led out the coaxial cable from the opening part of the specific example of the cable holding member for high frequency coaxial connectors concerning this invention. FIG. 6 is a leftward rotation diagram of FIG. 5. FIG. 6 is a rotation diagram in the right direction of FIG. 5.

Embodiments of the present invention will be described with reference to the drawings.
(Claim 1) A high-frequency coaxial connector cable holding member H according to the present invention includes an insertion hole 1 for a coaxial cable A. One end 2 of the insertion hole 1 continues to the opening 4 via an arcuate cross-section 3 in which the peripheral wall surface of the insertion hole 1 expands along the axis x direction of the insertion hole 1. A connecting portion 6 with the connector C is provided at the other end portion 5 of the insertion hole 1.

The holding member H is configured separately from the connector C. In use, the coaxial cable A is passed through the insertion hole 1 from the other end portion 5 side, extended from the one end portion 2 side to the outside, and connected to the connector C at the connection portion 6. The coaxial cable A extends to the outside from the opening 4 continuing through the arc-shaped cross-section 3 whose peripheral wall surface expands along the axis x direction of the insertion hole 1, so that the curvature of the arc-shaped cross-section 3 is equal to or less than the curvature radius r. It does not bend at the radius, and there is no possibility that the plated net-like outer conductor B is broken.

(Claim 2) The radius r of the arcuate cross section 3 is 5 to 6 mm.
In this case, even when the connector C and the cable holding member H are disposed in a narrow space, the radius of curvature r does not become extremely small, so that the breakage of the outer conductor B can be effectively suppressed.

(Claim 3) The connecting portion 6 is a diameter-enlarged recessed portion 7 which is directed from the other end portion 5 toward the one end portion 2 direction.
In this case, since the connection to the connector C can be made by press fitting, it can be easily attached and detached.

(Claim 4) The enlarged diameter recessed portion 7 is a circular groove and is provided with a female screw 8 on the peripheral wall surface.
In this case, since the cable holding member H can be screwed to the connector C, there is no possibility that the cable holding member H will be detached from the connector C even when receiving vibration or the like in the mounted state.

(Claim 5) The high frequency coaxial connector cable holding mechanism H 'according to the present invention employs the high frequency coaxial connector cable holding member H according to claim 1. The connecting portion 6 of the cable holding member H is connected to a connected portion 34 formed at one end portion of the shell 33 of the connector C in which the center contact 31 is installed on the own axis line x ′ via the insulating material 32 and the shell 33. Connecting. Then, the coaxial cable A in which the central conductor 35 is connected to the central contact 31 is extended to the outside from the opening 4 of the cable holding member H for the high-frequency coaxial connector.
According to this holding mechanism H ′, since the holding member H is separate from the connector C, the degree of freedom of the structure is increased, and there are few restrictions on use.

(Claim 6) The connecting portion 6 is a female screw 8 formed on the peripheral wall surface of the enlarged diameter recessed portion 7 from the other end portion 5 toward the one end portion 2, and the connected portion 34 is formed on the outer periphery of one end portion of the shell 33. The male screw 38 is made.
In this case, since the connection between the cable holding member H and the shell 33 is made by screwing, it is possible to prevent the coupling from loosening or coming off even with respect to vibration.
"Example"

When the state when a vertical load of 20 kgf was applied to the coaxial cable A extending from the cable holding member H was observed from three directions as shown in FIGS. 6 to 8, no breakage occurred in the outer conductor B.

A Coaxial cable x Axis 1 Insertion hole 2 One end portion 3 Arc-shaped cross section 4 Opening portion C Connector 5 Other end portion 6 Connection portion H Cable holding member r Curvature radius 7 Expansion recess portion 8 Female thread x 'Axis 31 Central contact 32 Insulating material 33 Shell 34 Connected portion 35 Center conductor H 'Cable holding mechanism 36 Male thread

Claims (6)

It has an insertion hole (1) for the coaxial cable (A),
One end (2) of the insertion hole (1) is connected to the peripheral wall surface of the insertion hole (1) via an arcuate cross section (3) whose diameter increases along the axis (x) direction of the insertion hole (1). Following the opening (4),
A cable holding member (H) for a high-frequency coaxial connector, characterized in that a connecting portion (6) with a connector (C) is provided at the other end (5) of the insertion hole (1).
The cable holding member (H) for a high-frequency coaxial connector according to claim 1, wherein the arcuate cross section (3) has a radius of curvature (r) of 5 to 6 mm.
The cable holding member for a high-frequency coaxial connector according to claim 1 or 2, wherein the connecting portion (6) is a diameter-enlarged concave portion (7) directed from the other end portion (5) toward the one end portion (2). (H).
The cable holding member (H) for a high-frequency coaxial connector according to claim 3, wherein the diameter-enlarged recess (7) is a circular groove and a female screw (8) is provided on a peripheral wall surface.
The connecting portion (6) of the cable holding member (H) for a high-frequency coaxial connector according to claim 1, the central contact (31) on the axis (x ') of the insulating member (32) and the shell (33 ) Is connected to the connected portion (34) formed at one end of the shell (33) of the connector (C) installed through the coaxial contact with the central conductor (35) and the central contact (31). A cable holding mechanism (H ′) for a high frequency coaxial connector, wherein the cable (A) is extended to the outside from the opening (4) of the cable holding member (H) for the high frequency coaxial connector.
The connecting portion (6) is an internal thread (8) formed on the peripheral wall surface of the enlarged diameter recessed portion (7) from the other end portion (5) to the one end portion (2) direction. The cable holding mechanism (H ') for a high-frequency coaxial connector according to claim 5, wherein 34) is a male screw (38) formed on the outer periphery of one end of the shell (33).

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