JPH06176824A - Anchor connector - Google Patents

Abstract

PURPOSE:To provide common connector members, and reduce cost of forming coaxial passages by providing gas seal members at anchor connectors to be provided between a pair of the connector members for butt connection. CONSTITUTION:Anchor connectors 1 are connected to each other by pressing inner conductors 19 of connector members 2, 3 into both ends of them. An O-ring provided at an outer circumferential surface of a seal member installation part 8 of an insulation plate 4 is applied to an inner circumferential surface 15a of a connector side connection part 15 to close a gap at the time. A gap between a contact member 5 and the insulation plate 4 is closed by an O-ring 11. A coaxial way positioned on the inner side of the member 2 is thus isolated from the external by the connector 1, so gas charged in the coaxial way is not leaked. By thus providing the anchor connector with a gas seal structure, common connector members can be provided, and formation cost of the coaxial passage can be reduced.

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 that are butt-joined to each other, and each connector member 30 and 31 has an inner conductor 34 coaxially arranged in a cylindrical connector member body 32 via an insulating spacer 33. Is configured. In the figure, reference numeral 100 is a coaxial cable to which the connector members 30 and 31 are attached, and 101 is a coaxial cable 100 to which the connector member main body 32 is connected.
The corrugated outer conductor 102, the central conductor of the coaxial cable 100 to which the inner conductor 34 is connected, and the coaxial cable 10 arranged between the central conductor 102 and the corrugated outer conductor 101.
0 is a spiral insulator, and 104 is an outer cover that covers the corrugated outer conductor 101.

Further, 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 to each other via the connector member main bodies 32 and 32 of both connector members 30 and 31,
In order to connect the central conductors 102 of the coaxial cable 100, some kind of connecting member is required separately. Therefore, the center conductors 102 are electrically connected to each other by using the anchor connector 39 shown in FIG. The anchor connector 39 includes an insulating plate 40 and a contact member 41 penetrating the insulating plate 40, and the connector members 30 and 31 are joined to each other at the joint portion. End side inner peripheral surfaces 32a, 3
After the insulating plate 40 is fitted in the 2a, the contact member 4
The center conductors 102 are electrically connected to each other by joining both ends of 1 to the inner conductors 34 of the connector members 30 and 31.

In the coaxial cable 100 to which such a coaxial connector is attached, the spiral insulator 1 is used for the purpose of preventing dew condensation in the cable and preventing water from entering.
Gas such as dry air is filled in the gap formed between the parts 03. Although such a gas needs to be filled over the entire coaxial line, the coaxial line is rarely composed of one coaxial cable 100, and usually, a plurality of coaxial cables 100 or a plurality of coaxial cables 100 and other coaxial cables 100 and other coaxial cables 100 are used. It is configured by connecting with a coaxial path component device. Therefore, a coaxial connector having a structure that allows gas to flow is used in the middle of the coaxial path, and a coaxial connector having a structure that completely seals gas is used at the end of the coaxial path.

The coaxial connector shown in FIG. 2 is a gas-shield type coaxial connector, and the connector member 30 located inside the coaxial path has O-rings 50, 50 attached to the inner and outer peripheral surfaces of the insulating spacer 33. A gas flow blocking structure is provided. Further, the gas flow type connector member (not shown) is not provided with such a gas flow blocking structure, but instead has an insertion hole 44 formed through the insulating spacer 33 in the thickness direction. Insertion hole 4 provided in hole 44 and insulating plate 40 of anchor connector 39
The gas is circulated through 5 and 5.

A connecting terminal 46 for gas supply / exhaust is attached to the connector members 30 and 31.

[0007]

By the way, in such a coaxial cable connection structure, since it is necessary to spread the gas over the entire coaxial path, a gas distribution type connector member and a gas shielding type are used for forming the coaxial path. The connector member and the connector member must be prepared and used properly according to the place where these different types of connector members are attached, which not only increases the cost for forming the coaxial path but also makes the work troublesome.

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

[0009]

In order to achieve such an object, in the present invention, it is provided between a pair of cylindrical connector members that are butted and joined to each other and provided inside these connector members. An anchor connector for connecting inner conductors to each other, wherein a ring-shaped insulating plate is fitted into the inner peripheral surface of the joint end side over both connector members, and both ends of each connector member are arranged to penetrate through the insulating plate. Contact members joined to the respective inner conductors, and formed on the inner and outer peripheral surfaces of the insulating plate between the insulating plate and the contact member and between the insulating plate and the connector member. A sealing member for filling the gap is provided, and an anchor connector is configured from the above.

The insulating plate is provided with a sealing member mounting portion which projects in the thickness direction and has an outer peripheral surface facing the inner peripheral surface of the connector member. It is preferable to dispose the connector member side sealing member on the surface.

[0011]

According to the above construction, since the sealing member is provided on the anchor connector interposed between the pair of connector members butt-joined to each other, it is necessary to block the gas flow in the coaxial path. However, if this anchor connector is mounted in the connector member instead of the normal anchor connector, the gas flow can be surely blocked. Therefore, when forming the coaxial path, it suffices to prepare each of this anchor connector and a normal anchor connector, and one having a gas sealing structure as a connector member and one having no gas sealing structure. 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 shield type connection structure for a coaxial cable using an anchor connector according to an embodiment of the present invention.

The anchor connector 1 is to be mounted inside a coaxial connector composed of a pair of connector members 2 and 3 that are butted and coupled to each other, and has an annular insulating plate 4.
And a contact member 5 penetrating 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 are formed with cylindrical connection portions 6 and 6, and the connection portions 6 and 6 are formed with slits 7 that give elasticity to the connection portions 6 and 6. In addition, one end portion in the thickness direction of the insulating plate 4 projects outward over almost the entire surface to form a sealing member attachment portion 8. The inner diameter of the sealing member attachment portion 8 is the same as that of the insulating plate 4, but the outer diameter is slightly smaller than that of the insulating plate 4. Grooves 9 and 10 along the circumferential direction are formed on the inner peripheral surface of the insulating plate 4 and the outer peripheral surface of the sealing member mounting portion, and these grooves 9 and 10 serve as sealing members. O-rings 11 and 12 are provided.

The connector members 2 and 3 have a cylindrical shape. Further, the connector members 2 and 3 are configured to include a connector main body 13 and cable-side connecting portions 14 and connector-side connecting portions 15 attached to both ends of the connector main body 13, respectively. These are integrally connected by a connecting screw 16 or a fastening screw portion 17. An inner conductor 19 is coaxially arranged inside the connector body 13 with an insulating spacer 18 interposed therebetween, and a connection terminal 20 for gas supply / discharge is attached to the outer peripheral portion. These connector members 2 and 3 are gas flow type connector members, and although the insulating spacer 18 is provided with the gas insertion hole 21, an O-ring for airtightly insulating the insulating spacer 18 is not provided, and accordingly , The structure is simpler than the gas shield type connector. The inner conductor 19 has a columnar portion 22 to which the central conductor 102 of the coaxial cable 100 is connected at one end, and a connection hole portion 23 to which the anchor connector 1 is connected at the other end.

A coaxial cable 100 similar to the conventional example is connected to the cable side connecting portion 14. That is, the inner surface of the cable-side connecting portion 14 is screwed onto 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.

It should be noted that a connector is provided between the cable-side connecting portion 14 and the coaxial cable 100, between the cable connecting portion 14 and the connector body portion 13, and between the connector body portion 13 and the connector-side connecting portion 15, respectively. O-rings 24, ..., which are arranged to hermetically seal the insides of the insides 2 and 3 from the outside are provided.

The connector members 2 and 3 thus constructed
They are butt-joined to each other, and the connecting portions 6 and 6 of the anchor connector 1 are connected to the connecting hole portion 2 of the inner conductors 19 and 19.
By pressing into 3, 23, the coaxial cable 100
And the coaxial cable 100, or the coaxial cable 100
, And other coaxial path constituent devices are connected. By selectively using the anchor connector to be installed, the connection structure can be a gas shield type or a gas flow type. That is, when the connection structure is a gas shield type, the anchor connector 1 of the present invention is used as shown in FIG. In the anchor connector 1, the internal conductors 19, 19 of both connector members 2, 3 are connected to each other by being press-fitted at both ends thereof, but at this time, the outer circumference of the sealing member attachment portion 8 of the insulating plate 4 is connected. The O-ring 12 provided on the surface is the inner peripheral surface 15 of the connector-side connecting portion 15.
Since the O-ring 11 closes the gap between the contact member 5 and the insulating plate 4, the coaxial path inside the connector member 2 is provided by the anchor connector 1. Since it is shielded from the outside, the gas filled in the coaxial path does not leak.

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

Furthermore, such connector members 2, 3
In order to configure a gas flow type connection structure by using, the conventional anchor connector 39 shown in FIG. 2 is replaced with only the anchor connector instead of replacing the connector members 2 and 3 as in the conventional case. It may be interposed between the connector members 2 and 3. Then, the insertion hole 2 of the insulating spacer 18
The gas flows between the connector members 2 and 3 through the connector 1 and the insertion hole 45 of the anchor connector 39.

[0020]

As described above, according to the present invention, since the anchor connector is provided with the sealing structure for preventing the flow of gas, the connecting structure is gas shielded only by mounting the anchor connector on the connector member. It became possible to make a structure. Therefore, it is not necessary to prepare a connector member having a gas shielding structure with a complicated structure when connecting the coaxial path,
The gas flow type connector member, which has a relatively simple structure and is inexpensive, can be applied to all connection points, and the cost for forming the coaxial path can be reduced accordingly.

Further, it is no longer necessary to properly use the connector member depending on the connection point, and the work of forming the coaxial path is facilitated accordingly.

Furthermore, since a gas flow type connector member can be used for all connection points, standardization of the connector member can be achieved.

[Brief description of drawings]

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

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

[Explanation of symbols]

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

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akio Kusunii 1-7-11 Aoki, Kawaguchi City, Saitama Sanei Denki Industry Co., Ltd.

Claims (2)

[Claims] 1. An internal conductor (19) disposed between a pair of cylindrical connector members (2, 3) which are butted and joined to each other, to connect internal conductors (19) to each other. An anchor connector, which has a ring-shaped insulating plate (4) internally fitted to the joint end side inner peripheral surface of both connector members (2, 3), and is penetrated through the insulating plate (4) and has both ends. And a contact member (5) joined to the inner conductors (19) of the respective connector members (2, 3), and the insulating plate (4) is provided on each of the inner and outer peripheral surfaces of the insulating plate (4). ) And the contact member (5) and between the insulating plate (4) and the connector member (2), sealing members (11, 12) are filled. Anchor connector characterized by. 2. The insulating plate (4) is provided with a sealing member mounting portion (8) which projects in the thickness direction and has an outer peripheral surface facing the inner peripheral surface of the connector member (2). The anchor connector according to claim 1, wherein the connector member side sealing member (12) is disposed on an outer peripheral surface of the sealing member mounting portion (8).