JP2944836B2 - Anchor connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anchor connector used for connecting inner conductors of a coaxial cable.

[0002]

2. Description of the Related Art Conventionally, as a structure for connecting a coaxial cable, there is a structure using a coaxial connector as shown in FIG. This coaxial connector includes a pair of connector members 30 and 31 which are butt-joined, and each of the connector members 30 and 31 has an internal conductor 34 coaxially arranged in a tubular connector member main body 32 via an insulating spacer 33. It is configured. In the figure, reference numeral 100 denotes a coaxial cable to which the connector members 30 and 31 are attached, and 101 denotes a coaxial cable 100 to which the connector member body 32 is connected.
, A central conductor 102 of the coaxial cable 100 to which the inner conductor 34 is connected, and 103 a coaxial cable 10 disposed between the central conductor 102 and the corrugated outer conductor 101.
Reference numeral 104 denotes a helical insulator, and 104 denotes an outer cover for covering the corrugated outer conductor 101.

In such a connection structure of the coaxial cable 100, the corrugated outer conductor 1 of the coaxial cable 100 is used.
01 are electrically connected via the connector member main bodies 32, 32 of both connector members 30, 31,
In order to connect the center conductors 102 of the coaxial cable 100, some connection member is separately required. Therefore, the center conductors 102 are electrically connected to each other using the anchor connector 39 also shown in FIG. The anchor connector 39 is provided with an insulating plate 40 and a contact member 41 penetrating through the insulating plate 40, and a joint between the connector members 30 and 31 at a joint portion between the connector members 30 and 31. End side inner peripheral surface 32a, 3
2a, an insulating plate 40 is fitted inside the contact member 4a.
The central conductors 102 are electrically connected to each other by joining both ends of the first conductors to the internal conductors 34 of the connector members 30 and 31.

In the coaxial cable 100 to which such a coaxial connector is attached, the helical insulator 1 is used for the purpose of preventing dew condensation in the cable and preventing intrusion of water.
Filling the gap formed during the period 03 with a gas such as dry air. Such a gas needs to be filled over the entire coaxial path, but the coaxial path is rarely composed of one coaxial cable 100, and usually includes a plurality of coaxial cables 100 or another coaxial cable 100 and another coaxial cable 100. It is configured by connecting to coaxial path components. Therefore, a coaxial connector having a structure for flowing gas is used in the middle of the coaxial path, and a coaxial connector having a structure for completely sealing the gas is used at the end of the coaxial path.

The coaxial connector shown in FIG. 2 is a gas shielding type coaxial connector. The connector member 30 located inside the coaxial path includes O-rings 50, 50 attached to the inner and outer peripheral surfaces of an insulating spacer 33. The gas flow preventing structure is provided. Further, the gas flow type connector member (not shown) does not have such a gas flow prevention structure. Instead, an insertion hole 44 is formed through the insulating spacer 33 in the thickness direction. Hole 44 and insertion hole 4 formed in insulating plate 40 of anchor connector 39
5 and the gas is circulated.

The connector members 30 and 31 are provided with connection terminals 46 for supplying and discharging gas.

[0007]

However, in such a coaxial cable connection structure, since gas must be distributed throughout the coaxial path, a gas flow type connector member and a gas shielding type connector are used in forming the coaxial path. The connector members must be prepared and used separately according to the place where these different types of connector members are to be mounted. This not only increases the cost of forming the coaxial path, but also complicates the operation.

Accordingly, an object of the present invention is to provide a common connector member by providing a gas sealing structure in an anchor connector.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, according to the present invention, there is provided between a pair of tubular connector members which are joined in abutting manner and provided inside these connector members. An anchor connector for connecting the internal conductors to each other, wherein an annular insulating plate is fitted over the inner peripheral surface at the joint end side over both connector members, and both ends of each connector member are disposed through the insulating plate and both ends of each connector member. A contact member that is joined to each of the internal conductors, and is formed between the insulating plate and the contact member and between the insulating plate and the connector member on the inner and outer peripheral surfaces of the insulating plate. A sealing member for filling the gap is provided, and an anchor connector is constituted from the above.

[0010] The insulating plate is provided with a sealing member mounting portion projecting in the thickness direction and having an outer peripheral surface facing the inner peripheral surface of the connector member. Preferably, the connector member-side sealing member is provided on a surface.

[0011]

According to the above construction, since the sealing member is provided on the anchor connector interposed between the pair of connector members which are butt-coupled to each other, it is necessary to block the gas flow in the coaxial path. Even in this case, if the anchor connector is mounted in the connector member instead of the normal anchor connector, the flow of gas can be reliably prevented. Therefore, when forming the coaxial path, it suffices to prepare the anchor connector and the normal anchor connector respectively, and one having a gas sealing structure as a connector member and one having no gas sealing structure as a connector member. There is no need to prepare each.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a cross-sectional view of a gas shielded connection structure of a coaxial cable using an anchor connector according to one embodiment of the present invention.

The anchor connector 1 is mounted inside a coaxial connector comprising a pair of connector members 2 and 3 which are butt-coupled to each other.
And a contact member 5 penetrating through the insulating plate 4. The insulating plate 4 is made of, for example, PTFE resin, and the contact member 5 is made of, for example, brass plated with silver. Both ends of the contact member 5 form cylindrical connecting portions 6, 6, and the connecting portions 6, 6 are formed with slits 7 for giving elasticity to the connecting portions 6, 6. Further, one end in the thickness direction of the insulating plate 4 protrudes outward over substantially the entire surface to form a sealing member mounting portion 8. Although the inner diameter of the sealing member mounting portion 8 is the same as that of the insulating plate 4, the outer diameter is slightly smaller than that of the insulating plate 4. Grooves 9 and 10 are formed along the circumferential direction on the inner peripheral surface of the insulating plate 4 and the outer peripheral surface of the sealing member mounting portion, respectively. O-rings 11 and 12 are provided.

The connector members 2 and 3 are cylindrical. Each of the connector members 2 and 3 includes a connector body 13 and a cable-side connection portion 14 and a connector-side connection portion 15 attached to both ends of the connector body 13. These are integrally connected by a connecting screw 16 or a fastening screw portion 17. An internal conductor 19 is coaxially arranged inside the connector main body 13 via an insulating spacer 18, while a connection terminal 20 for gas supply / discharge is attached to an outer peripheral portion. The connector members 2 and 3 are gas flow type connector members. Although the gas insertion hole 21 is formed in the insulating spacer 18, an O-ring for hermetically sealing the insulating spacer 18 is not provided. The structure is simpler than a gas shielded connector. The inner conductor 19 is formed at one end with a cylindrical portion 22 to which the center conductor 102 of the coaxial cable 100 is connected, and at the other end with a connection hole 23 to which the anchor connector 1 is connected.

A coaxial cable 100 similar to the conventional example is connected to the cable side connection portion 14. That is, the inner surface of the cable-side connection portion 14 is screwed to the corrugated outer conductor 101 of the coaxial cable 100, and the center conductor 102 is connected and fixed to the cylindrical portion 22 of the inner conductor 19.

Note that a connector is provided between the cable side connection part 14 and the coaxial cable 100, between the cable connection part 14 and the connector body part 13, and between the connector body part 13 and the connector side connection part 15, respectively. O-rings 24,... For hermetically sealing the insides of the components 2 and 3 from outside are provided.

The connector members 2, 3 constructed as described above
The connecting portions 6 and 6 of the anchor connector 1 are connected to the connecting holes 2 of the internal conductors 19 and 19.
3 and 23, the coaxial cable 100
And coaxial cable 100 or coaxial cable 100
And other coaxial path components, and the connection structure can be either a gas shielding type or a gas flow type by properly using the anchor connector to be installed. That is, when the connection structure is a gas shielding type, the anchor connector 1 of the present invention is used as shown in FIG. In the anchor connector 1, the inner conductors 19, 19 of the two connector members 2, 3 are press-fitted at both ends thereof to connect them to each other. At this time, the outer periphery of the sealing member mounting portion 8 of the insulating plate 4 is connected. O-ring 12 provided on the inner surface of connector side connecting portion 15
a, and the gap between the contact member 5 and the insulating plate 4 is also closed by the O-ring 11, so that the coaxial path located inside the connector member 2 is provided by the anchor connector 1. Since it is shielded from the outside, the gas charged in the coaxial path does not leak.

The connecting end 15 of the connector-side connecting portion 15
An O-ring 26 is provided at b, and gas filled in each connector member does not leak from the joint end 15b. Further, a narrow insulating plate mounting step 25 is formed on the inner peripheral surface 15a side of the joint end 15b, and the insulating plate 4 of the anchor connector 1 is connected to the insulating plate mounting steps 25 of both connector members 2, 3. It is positioned by engaging over 25. Therefore, it is structurally difficult to bring the insulating plate outer peripheral side O-ring 12 into contact with the insulating plate mounting step 25. However, in this anchor connector 1, the sealing member mounting portion 8 is provided on the insulating plate 4, and the outer peripheral side O-ring 12 is arranged on the outer peripheral surface of the sealing member mounting portion 8. Therefore, the O-ring 12 is not provided on the insulating plate mounting step 25, but on the inner peripheral surface 15 of the connector-side connecting portion 15.
a can be easily contacted.

Further, such connector members 2, 3
In order to configure a gas-flow-type connection structure by using the conventional method, instead of replacing the connector members 2 and 3 as in the related art, only the anchor connector is replaced with the conventional anchor connector 39 shown in FIG. What is necessary is just to interpose between the connector members 2 and 3. Then, the insertion hole 2 of the insulating spacer 18 is formed.
The gas flows between the connector members 2 and 3 through the insertion hole 1 of the anchor connector 39 and the insertion hole 45 of the anchor connector 39.

[0020]

As described above, according to the present invention, since the sealing structure for preventing gas flow is provided in the anchor connector, the connection structure is gas-shielded only by mounting the anchor connector on the connector member. It became possible to make a structure. Therefore, when connecting the coaxial path, there is no need to prepare a connector member having a complicated gas shielding structure,
The gas flow type connector member having a relatively simple structure and being inexpensive can be applied to all connection points, and the cost of forming the coaxial path can be reduced accordingly.

In addition, it is not necessary to use the connector member properly according to the connection location, and the coaxial path forming operation is facilitated accordingly.

Further, since all connection points can be handled by a gas flow type connector member, standardization of the connector member can be achieved.

[Brief description of the drawings]

FIG. 1 is a half sectional view showing a connection structure of a coaxial cable using an anchor connector according to one embodiment of the present invention.

FIG. 2 is a half sectional view showing a connection structure of a coaxial cable using a conventional anchor connector.

[Explanation of symbols]

 2, 3 Connector member 4 Insulating plate 5 Contact member 8 Sealing member mounting portion 11, 12 O-ring (sealing member) 19 Internal conductor

──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Akio Kusui 1-7-11 Aoki, Kawaguchi City, Saitama Prefecture Inside Sanei Electric Industry Co., Ltd. Hei 1-60483 (JP, U) Japanese Utility Model 5-90861 (JP, U) Japanese Utility Model Hei 5-37468 (JP, U) Japanese Utility Model 58-120581 (JP, U) (58) Fields surveyed (Int) .Cl. ⁶ , DB name) H01R 17/04 H01R 31/00-31/06 H01P 1/00-1/14

Claims (2)

(57) [Claims] An internal conductor (19) provided between a pair of tubular connector members (2, 3) joined in abutting manner and connected inside the connector members (2, 3). An annular insulating plate (4) fitted over the inner peripheral surface of the joint end side over both connector members (2, 3); And a contact member (5) joined to each of the internal conductors (19) of each of the connector members (2, 3). An insulating plate (4) is provided on the inner and outer peripheral surfaces of the insulating plate (4). ) And the contact member (5), and sealing members (11, 12) for filling gaps formed between the insulating plate (4) and the connector member (2). An anchor connector characterized by the following. 2. A sealing member mounting portion (8), which is provided on the insulating plate (4) and protrudes in a thickness direction and has an outer peripheral surface facing an inner peripheral surface of the connector member (2). The anchor connector according to claim 1, wherein the connector member-side sealing member (12) is provided on an outer peripheral surface of the sealing member mounting portion (8).