CN204905468U - Low intermodulation air cable connector - Google Patents

Abstract

The utility model relates to a low intermodulation air cable connector, which comprises a front shell, a rear shell and a rear nut. An insulator A, an insulator B, an insulator C, an inner conductor and a bushing are arranged in the front shell. A hollow circular truncated structure is formed at the contact point between the bush and the front end of the rear housing, and the cross-section is a right triangle; the side wall of the circular truncated structure abuts against the outer conductor of the cable. The utility model clamps the outer conductor of the cable through the circular platform structure, so that the outer conductor and the inner conductor of the cable are stable and reliable, and the intermodulation stability of the air cable assembly is improved.

Description

A low intermodulation air cable connector

technical field

The utility model relates to a cable connector, in particular disclosing a low intermodulation air cable connector.

Background technique

Air cable is a new type of radio frequency coaxial cable, which uses air as its medium. The advantage is that the air medium is less affected by temperature, and the electrical performance is stable. At the same time, the air medium also greatly reduces the manufacturing cost.

Since the medium of the air cable is air, the inner conductor and the outer conductor are only fixed by a layer of spiral insulating bushing. The original structure has no bevel on the bushing (as shown in Figure 1), and the front shell and the rear shell are screwed tightly. Finally, the outer conductor of the cable cannot be clamped. Due to the special structure of the air cable, when the connector is subjected to an external force, there will be a slight movement between the outer conductor and the inner conductor of the cable, resulting in an unstable third-order intermodulation value.

Utility model content

The purpose of the invention of the utility model is to provide an air cable connector for improving the intermodulation stability of the air cable assembly in order to solve the above problems.

The technical scheme adopted in the utility model is as follows:

A low intermodulation air cable connector, including a front shell, a rear shell and a rear nut, in which an insulator A, an insulator B, an insulator C, an inner conductor, and a bush are arranged, and the bush and the rear A hollow circular truncated structure is integrally arranged at the contact point of the front end of the shell, and the radial cross section is triangular; the side wall of the circular truncated structure abuts against the outer conductor of the cable.

In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

The utility model clamps the outer conductor of the cable through the circular platform structure, so that the outer conductor and the inner conductor of the cable are stable and reliable, and the intermodulation stability of the air cable assembly is improved.

Description of drawings

Fig. 1 is a partial enlarged view of the contact point between a bush and a cable in the prior art;

Fig. 2 is a structural diagram of the utility model;

Fig. 3 is an enlarged view of A in Fig. 2 .

Markings in the figure: 1. Front housing; 11. Insulator A; 12. Insulator B; 13. Insulator C; 14. Inner conductor; 15. Bushing; 2. Rear housing; 3. Rear nut; 4. Cone structure.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figures 2 to 3, a low intermodulation air cable connector includes a front shell 1, a rear shell 2 and a rear nut 3, and an insulator A11, an insulator B12, an insulator C13, and an inner shell 1 are arranged in the front shell 1. The conductor 14 and the bushing 15 are integrally provided with a hollow circular frustum structure 4 at the contact point between the bushing 15 and the front end of the rear housing 2 (cable front end), and the radial cross section is triangular; the side wall of the circular frustum structure 4 is connected to the cable outer conductor Abut.

The front end of the cable is provided with an external thread, and one end of the rear shell 2 is provided with an internal thread at the connection end with the front shell 1, and the cable is threaded with the rear shell 2; after the two are connected, they are screwed into the front shell 1, inside the front shell 1 The set bushing 15 abuts against the front end of the cable (the front end of the rear shell). Due to the existence of the circular truncated structure 4, the outer conductor of the cable can be compressed and limited, and the existence of external force will not make the cable inner conductor and outer conductor exist. There is no radial movement in the positional movement, the connection is reliable, and the intermodulation stability of the air cable assembly is improved.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (1)

1. one kind low intermodulation air cable connector, comprise front casing, rear casing and back nut, insulator A, insulator B, insulator C, inner wire, lining is provided with in described front casing, it is characterized in that: have a hollow round table structure at described lining and contact position, rear casing front end integrated setting, radial section is triangular in shape; Described frustum cone structure sidewall abuts with cable outer conductor.