CN217522199U

CN217522199U - High-frequency lightning arrester for communication

Info

Publication number: CN217522199U
Application number: CN202220814251.3U
Authority: CN
Inventors: 卢骞; 谢志坚; 邢明海
Original assignee: Jiangsu Xixia Communication Technology Co ltd
Current assignee: Jiangsu Xixia Communication Technology Co ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-09-30
Anticipated expiration: 2032-04-11

Abstract

The utility model discloses a high-frequency arrester for communication, which relates to the technical field of radio-frequency arresters and comprises a shell; the inner conductor is fixedly arranged in the shell, a plurality of annular flanges are arranged on the side surface of the inner conductor, the axes of the annular flanges are overlapped with the axis of the inner conductor, and the annular flanges are sequentially arranged along the axis direction of the inner conductor; the short-circuit pin is fixedly arranged in the shell and is vertical to the inner conductor, a jack is formed in the side surface of the inner conductor, and one end of the short-circuit pin extends into the jack; and the spring is spiral and fixedly arranged in the shell, and is sleeved outside the inner conductor.

Description

High-frequency lightning arrester for communication

Technical Field

The utility model relates to a radio frequency arrester technical field especially relates to a high frequency arrester for communication.

Background

Radio frequency coaxial arresters are used in coaxial protection RF transmission and reception systems, including electronic equipment located on an antenna or satellite antenna. The arrester on the current market has that the signal transmission reflection between arrester casing and inner conductor and the short-circuit pin is great, leads to the application range of arrester to be 800MHz ~2700MHz generally, and the frequency of work is lower, can't be applicable to the high frequency scene.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the shortcoming of prior art is overcome, a high-frequency arrester for communication is provided.

In order to solve the technical problem, the technical scheme of the utility model as follows:

a high-frequency lightning arrester for communication comprises a lightning arrester body,

a housing;

the inner conductor is fixedly arranged in the shell, a plurality of annular flanges are arranged on the side surface of the inner conductor, the axes of the annular flanges are overlapped with the axis of the inner conductor, and the annular flanges are sequentially arranged along the axis direction of the inner conductor;

the short-circuit pin is fixedly arranged in the shell and is perpendicular to the inner conductor, a jack is formed in the side surface of the inner conductor, and one end of the short-circuit pin extends into the jack; and the number of the first and second groups,

the spring is spiral and fixedly arranged in the shell, and is sleeved outside the inner conductor.

As a preferred embodiment of the high-frequency arrester for communication, wherein: the insulator is fixedly arranged in the shell, and the insulator is sleeved at two ends of the inner conductor.

As a preferred embodiment of the high-frequency arrester for communication, wherein: the annular flange is integrally formed with the inner conductor.

As a preferred scheme of the high-frequency arrester for communication, wherein: the upper end that is located in the casing short circuit needle is fixed and is provided with the short circuit cap, the upper end of short circuit needle with the butt of short circuit cap.

As a preferred embodiment of the high-frequency arrester for communication, wherein: and two ends of the spring are respectively abutted with the short circuit cap and the inner conductor.

As a preferred embodiment of the high-frequency arrester for communication, wherein: the jack is a threaded hole, and external threads are correspondingly arranged on the part of the short circuit pin extending into the jack.

The utility model has the advantages that:

the utility model discloses it shortens 1/4 wavelength to establish to be spiral helicine spring at the outside cover of short circuit needle, and simultaneously, set up the cyclic annular flange of a plurality of in the outside of inner conductor, remedy the signal discontinuous type that the helical spring leads to is established to the short circuit needle overcoat through increasing these cyclic annular flanges, make the casing, the signal transmission's that forms between inner conductor and the short circuit needle reflection is littleer, thereby it is more excellent at the high frequency transmission in-process to make the standing wave, make the frequency range spread spectrum that the arrester supported to 800MHz ~3800 MHz.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic view of an internal structure of a high-frequency lightning arrester for communication according to the present invention;

wherein: 1. a housing; 2. an inner conductor; 3. a shorting pin; 4. a spring; 5. a short circuit cap; 6. an insulator.

Detailed Description

In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.

Fig. 1 is a schematic view of an internal structure of a high-frequency arrester for communication according to an embodiment of the present application. The high-frequency arrester comprises a substantially T-shaped housing 1. An inner conductor 2 is fixedly mounted in the housing 1, and the inner conductor 2 is disposed in the housing 1 in a horizontal direction. An insulator 6 is further provided at a position of the inner conductor 2 adjacent to the end portion. The two ends of the housing 1 in the horizontal direction are both provided with coaxial connectors.

Wherein, the side of inner conductor 2 is provided with a plurality of annular flanges, and the axis of these annular flanges coincides with the axis of inner conductor 2. The plurality of annular flanges are sequentially arranged at equal intervals along the length direction of the inner conductor 2. The plurality of annular flanges may be of different diameters and thicknesses. Referring to the cross section of the inner conductor 2 in fig. 1, a plurality of annular flanges form a plurality of steps of different sizes on the side of the inner conductor 2.

A shorting pin 3 is also fixedly mounted in the housing 1, and the shorting pin 3 is disposed in the housing 1 in a vertical direction. A jack along the vertical direction is arranged in the inner conductor 2, and the lower end of the short circuit pin 3 extends into the jack, so that the short circuit pin 3 is vertically inserted into the inner conductor 2. In this embodiment, the insertion hole is a threaded hole, and correspondingly, an external thread matching with the threaded hole is arranged on a portion of the shorting pin 3 extending into the insertion hole, so that a threaded connection is formed between the shorting pin 3 and the inner conductor 2.

A short circuit cap 5 is fixedly arranged above the short circuit pin 3 in the shell 1. The upper end of the shorting pin 3 abuts against the shorting cap 5.

A spiral spring 4 is fixedly sleeved outside the short circuit pin 3 in the housing 1, the upper end of the spring 4 is abutted with the short circuit cap 5, and the lower end of the spring 4 is abutted with the inner conductor 2. The spring 4 is not in contact with the shorting pin 3.

The 1/4 wavelength is shortened by arranging the spiral spring 4 outside the short-circuit pin 3, thereby widening the use frequency range of the lightning arrester. However, the above structure causes signal discontinuity, and therefore, the annular flanges are additionally arranged on the outer side of the inner conductor 2 to compensate for the signal discontinuity, so that the reflection of signal transmission formed among the housing 1, the inner conductor 2 and the short-circuit pin 3 is smaller, the standing wave is more excellent in the high-frequency transmission process, and the frequency range supported by the lightning arrester of the present application is extended to 800MHz to 3800 MHz.

In addition to the above embodiments, the present invention may have other embodiments; all the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims

1. A high-frequency lightning arrester for communication is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

a housing (1);

the inner conductor (2) is fixedly arranged in the shell (1), a plurality of annular flanges are arranged on the side surface of the inner conductor (2), the axes of the annular flanges are overlapped with the axis of the inner conductor (2), and the annular flanges are sequentially arranged along the axis direction of the inner conductor (2);

the short-circuit pin (3) is fixedly arranged in the shell (1) and is perpendicular to the inner conductor (2), a jack is formed in the side surface of the inner conductor (2), and one end of the short-circuit pin (3) extends into the jack; and (c) a second step of,

and the spring (4) is spiral and is fixedly arranged in the shell (1) and sleeved on the outer side of the inner conductor (2).

2. A high-frequency arrester for communications according to claim 1, characterized in that: still include insulator (6), insulator (6) are fixed to be set up in casing (1), and the cover is established the both ends of inner conductor (2).

3. A high-frequency arrester for communications according to claim 1, characterized in that: the annular flange is integrally formed with the inner conductor (2).

4. A high-frequency arrester for communications according to claim 1, characterized in that: the shell (1) is internally provided with a short circuit cap (5) which is fixedly arranged at the upper end of the short circuit pin (3), and the upper end of the short circuit pin (3) is abutted against the short circuit cap (5).

5. The high-frequency arrester for communication according to claim 4, wherein: and two ends of the spring (4) are respectively abutted with the short circuit cap (5) and the inner conductor (2).

6. A high-frequency arrester for communications according to claim 1, characterized in that: the jack is a threaded hole, and the part of the short circuit pin (3) extending into the jack is correspondingly provided with an external thread.