JP2012234751A - Connection member of coaxial cable and connection method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To connect coaxial cables to each other by one connection member.SOLUTION: A straight connector 8 is used which, as a member for linearly connecting coaxial cables to each other, fixes a member for connecting coaxial cable core wires 3 to each other to the center part of a cylindrical member for connecting coaxial cable shield wires 5 to each other via an insulation material having a function equal to or more than that of a coaxial cable internal insulation material 4.

Description

The present invention relates to a member for connecting a coaxial cable and a coaxial cable, and a connection method.

  Conventionally, a member and a method for connecting a coaxial cable and a coaxial cable are, as a method, a straight plug connector is attached to each end portion to be connected, and a member is used to connect the connectors via a straight adapter. The object has been achieved by using a member having a structure in which both are connected or connectors are directly connected. FIG. 1 shows a usage pattern in a normal combination.

Patent Publication H7-240245

Hirose Electric Co., Ltd. Coaxial connector catalog

  Conventionally, as a member and a method for connecting a coaxial cable and a coaxial cable, the straight plugs described in Non-Patent Document 1 are attached to the tip portions of both to be connected, and the straight plugs are connected to each other. Connect the two via a straight adapter, or attach a straight plug to the end of one coaxial cable to be connected, attach a straight jack to the other coaxial cable end, and connect the two directly Met. However, in such a method, the connector processing at the terminal must be carried out for each coaxial cable to be connected, so that at least two members for connection are required, and the construction takes time. It was.

Further, when the number of connection members connecting the coaxial cable and the coaxial cable is increased, there is a disadvantage that transmission loss in the connection portion increases in proportion to the increased number of connections.

  Furthermore, in order to connect the coaxial cable by the conventional method, two or more members are required, and there is a disadvantage that the cost is high.

  The present invention is a member for directly connecting and extending one coaxial cable and another coaxial cable, without soldering and crimping each other's three coaxial cable core wires and each other's five coaxial cable shield wires. The problem is solved by using a single member characterized in that it can be easily connected.

  As an example of a member that linearly connects coaxial cables, a member that connects three coaxial cable cores is equivalent to a central member of a cylindrical member that connects five coaxial cable shielded wires, and is equivalent to an inner insulating material of four coaxial cables. Or the conventional subject is solved by using the 8 straight connector fixed through the insulating material which has the function more than equivalent.

  A typical configuration will be described with reference to FIG. As an example of a member that linearly connects coaxial cables, a member that connects three coaxial cable cores is equivalent to a central member of a cylindrical member that connects five coaxial cable shielded wires, and is equivalent to an inner insulating material of four coaxial cables. Or, by using an 8 straight connector fixed via an insulating material with equivalent or better function, the same function as the conventional configuration shown in Fig. 1 can be built without a 1 straight adapter and 2 straight plugs. Made it possible to do.

FIG. 1 shows a connection method using a conventional 1 straight adapter and 2 straight plugs. FIG. 2 is a structural diagram of the 8 straight connector invented this time and a connection state diagram of a coaxial cable using the 8 straight connector. FIG. 3 is a structural diagram of the 8 straight connector and 7 coaxial cable jacket plugs invented this time, and a connection state diagram of the coaxial cable using the 8 straight connector and 7 coaxial cable jacket plugs.

  An example of a member that connects coaxial cables linearly is equivalent to a member that connects three coaxial cable core wires to a central part of a cylindrical member that connects five coaxial cable shielded wires to an inner insulating material of four coaxial cables. Or it is the 8 straight connector characterized by fixing through the insulating material which has the function more than equivalent. 8. By connecting two coaxial cables using straight connectors, a connection function equivalent to the conventional configuration shown in FIG. 1 can be constructed without using one straight adapter and two straight plugs.

  FIG. 1 shows a general connection configuration using a conventional member. Two straight plugs are attached to the end of one coaxial cable to be connected by soldering or crimping, and the other coaxial to be connected is connected. Attach two straight plugs to the end of the cable in the same way. By connecting two coaxial cables with two straight plugs to one straight adapter, the connection function between them is demonstrated.

  FIG. 2 is an example of the connecting member 8 straight adapter of the present invention. A member that connects the three coaxial cable core wires is connected to the central part of the cylindrical member that connects the five coaxial cable shield wires via an insulating material having a function equivalent to or greater than that of the four coaxial cable inner insulating material. It is a connection member of a fixed coaxial cable. By using an 8 straight connector, it is possible to construct a function equivalent to the conventional configuration shown in FIG. 1 without a 1 straight adapter and a 2 straight plug.

  The connecting member of the three coaxial cable core wires inside the 8 straight connector shown in FIG. 2 is a hollow conductor having an inner diameter that is the same as the outer diameter of the core conductor of the coaxial cable to be connected. At both ends, the tip is tapered in the inner diameter direction so that the core wire of the coaxial cable to be connected can be easily inserted. The tapered portion is not limited to the present embodiment, but may be a spring-like structure for easily introducing the coaxial cable core wire into the hollow connection portion and a structure that can provide reliable contact.

  2 is a hollow conductor having an inner diameter of the same dimension as the outer diameter of the insulating material between the core wire conductor and the shield wire conductor of the coaxial cable to be connected. is there. The both ends are tapered in the outer diameter direction so that they can be easily inserted between the insulating material of the coaxial cable to be connected and the shield wire. In order to firmly fix the connecting member and the coaxial cable, the connecting member 8 straight connector is inserted into the coaxial cable, and then the 6 coaxial cable jacket is fixed simultaneously with the 5 coaxial cable shielded wire from the 6 coaxial cable jacket with a binding band or the like. What is necessary is just to crimp | bond with a cap or a metal crown.

  Further, the taper processing at both ends of the coaxial cable shield wire connecting member may be in a small range, and the center side of the connecting member is perpendicular to the diametrical direction (the cross section is a right triangle shape taper) or acute angle processing (the cross section is an acute angle triangle shape). It has a function of preventing disconnection after connection by hooking the mesh portion of the coaxial cable shield wire inserted on the outer periphery of the connection member.

  Further, the function equivalent to or better than that of the 4 coaxial cable internal insulating material for fixing the member connecting the 3 coaxial cable core wires to the central part of the cylindrical coaxial cable shield wire connecting member connecting the 5 coaxial cable shield wires. The insulating material having the same length as that of the member connecting the three coaxial cable cores is arranged symmetrically from the central portion in the length direction. The insulation material is fixed and impedance matching is performed within the coaxial cable shield wire connecting member by setting the ratio of (4 coaxial cable internal insulation material outer diameter) / (3 coaxial cable core wire outer diameter) to 3 coaxial. An insulating material having a diameter multiplied by the outer diameter of the member connecting the cable cores can be arranged, has a cutout, and exhibits a misalignment prevention effect.

FIG. 3 is also an example of the connecting member 8 straight adapter of the present invention. A member that connects the three coaxial cable core wires is connected to the central part of the cylindrical member that connects the five coaxial cable shield wires via an insulating material having a function equivalent to or greater than that of the four coaxial cable inner insulating material. It is a connecting member having a function of fixing a 6 coaxial cable jacket to be connected to a fixed coaxial cable connecting member to an 8 straight adapter with a tapered 7 coaxial cable jacket holding plug. By using an 8 straight connector, it is possible to construct a function equivalent to the conventional configuration shown in FIG. 1 without a 1 straight adapter and a 2 straight plug.

    The connecting member of the three coaxial cable core wires inside the eight straight connector shown in FIG. 3 is a hollow conductor having an inner diameter that is the same as the outer diameter of the core conductor of the coaxial cable to be connected. At both ends, the tip is tapered in the inner diameter direction so that the core wire of the coaxial cable to be connected can be easily inserted. The tapered portion is not limited to the present embodiment, but may be a spring-like structure for easily introducing the coaxial cable core wire into the hollow connection portion and a structure that can provide reliable contact.

  The connection member between the five coaxial cable shield wires in the eight straight connector shown in FIG. 3 is a hollow conductor having the same inner diameter as the outer diameter of the insulating material between the core wire conductor and the shield wire conductor of the coaxial cable to be connected. is there. The both ends are tapered in the outer direction so that they can be easily inserted between the insulating material of the coaxial cable to be connected and the shield wire.

  Further, the taper processing at both ends of the coaxial cable shield wire connecting member may be in a small range, and the center side of the connecting member is perpendicular to the diametrical direction (the cross section is a right triangle shape taper) or acute angle processing (the cross section is an acute angle triangle shape). It has a function of preventing disconnection after connection by hooking the mesh portion of the coaxial cable shield wire inserted on the outer periphery of the connection member.

  In addition, the center portion of the coaxial cable shield wire connecting member has a screw portion for stopping the seven coaxial cable jacket holding plugs to each target position. 7 Coaxial cable jacket plugs have a function to prevent disconnection after connection by pressing the shielded cable and jacket of the coaxial cable to be connected to the taper at the both ends of the coaxial cable shield wire connecting member. It is strengthening.

    Further, the insulation having the same function as that of the 4 coaxial cable inner insulating material for fixing the member for connecting the 3 coaxial cable core wires to the central part of the cylindrical coaxial cable shield wire connecting member for connecting the 5 coaxial cable shield wires. The material is the same as the length of the member connecting the three coaxial cable core wires, and is arranged symmetrically from the center. The insulation material is fixed and impedance matching is performed within the coaxial cable shield wire connecting member by setting the ratio of (4 coaxial cable internal insulation material outer diameter) / (3 coaxial cable core wire outer diameter) to 3 coaxial. An insulating material having a diameter multiplied by the outer diameter of the member connecting the cable cores can be arranged, has a cutout, and exhibits a misalignment prevention effect.

  As an example of a member that linearly connects coaxial cables, a member that connects three coaxial cable cores is equivalent to a central member of a cylindrical member that connects five coaxial cable shielded wires, and is equivalent to an inner insulating material of four coaxial cables. Or, by using an 8 straight connector fixed via an insulating material with equivalent or better function, the same function as the conventional configuration shown in Fig. 1 can be built without a 1 straight adapter and 2 straight plugs. Since it is not necessary to use a plurality of connection members, the time required for connection can be shortened, transmission loss can be reduced and connection cost can be reduced.

DESCRIPTION OF SYMBOLS 1 Straight adapter 2 Straight plug 3 Coaxial cable core wire 4 Coaxial cable inner insulation material 5 Coaxial cable shield line 6 Coaxial cable jacket 7 Coaxial cable jacket plug 8 Straight connector

Claims (3)

As a member that connects coaxial cables linearly, a member that connects coaxial cable cores is the same as or more than the coaxial cable internal insulation material in the center of a cylindrical member that connects coaxial cable shield wires The connection member which directly connects the coaxial cables characterized by having fixed through the insulating material which has the function of, and the connection method using the connection member. 2. The connecting member according to claim 1, wherein a member for fixing the coaxial cable to be connected is connected to a cylindrical member for connecting the coaxial cable shielded wires as a member for linearly connecting the coaxial cables. And a connection method using the connection member. A member for connecting coaxial cables to a T-type or an L-type and a connection method, and a T-type or L-type connection member having the characteristics of claim 1 or claim 2 and a connection method.

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