CN210926518U

CN210926518U - Radio frequency lightning arrester

Info

Publication number: CN210926518U
Application number: CN201921593596.5U
Authority: CN
Inventors: 付少卫
Original assignee: Xi'an Tesai Electronic Technology Co ltd
Current assignee: Shaanxi Tesai Electronic Technology Co ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-07-03
Anticipated expiration: 2029-09-24

Abstract

The utility model relates to a radio frequency arrester includes shell, inside casing, inner conductor, jack and GDT (ceramic gas discharge tube), there are second nut, internal tooth packing ring and packing ring outside the shell, and the connector installation of being convenient for is firm, the equipment is joined in marriage with the jack pressure to the inner conductor, and the inner conductor has to mill flat for the combination center conductor, inner conductor, screw, GDT, gasket, protective layer, reed, first nut constitute lightning-arrest discharge system, and first nut is fixed GDT, and the accessible spanner is taken tightly, guarantees that GDT contacts closely, and the product gas tightness is guaranteed to the inslot sealing washer of first nut. The lightning protection function of the radio frequency arrester is realized, and the normal operation of an antenna feeder system is guaranteed. The utility model discloses can realize surge current ground connection rapidly, effective protection jointing equipment and communication system improve the security performance, and the cost is reduced promotes product market competition.

Description

Radio frequency lightning arrester

Technical Field

The utility model relates to a microwave transmission's radio frequency coaxial connector especially relates to a radio frequency arrester is used in communication.

Background

Lightning is a common natural phenomenon in the nature, and can damage various electronic and electrical devices besides causing damage to people and buildings. Electronic communication systems are often disturbed by external instantaneous high overvoltage, high-power charging waves and induced current voltages (generally called surge voltages or surge currents) are generated, and in order to avoid damaging electronic equipment, an arrester is needed to protect the electronic communication systems and the equipment, quickly remove pulses and reduce the current voltages to a safe range.

The existing high-pass filtering lightning arrester is designed because the skin effect is obvious and the transmission performance of the lightning arrester is easy to be reduced or damaged for a long time, so that the utility model discloses an antenna feeder lightning arrester, a radio frequency lightning arrester, has the signal transmission function of a radio frequency coaxial connector, and can discharge in time when surge current is generated, thereby protecting the connector and a communication system.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the thunder and lightning exists among the antenna feeder system, the utility model aims to provide a radio frequency arrester can realize surge current ground connection rapidly, effectively protects jointing equipment and communication system, improves the security performance, and the cost is reduced promotes product market competition.

The utility model adopts the technical proposal that:

a radio frequency arrester comprises a shell, an outer conductor and a central conductor, wherein a gasket, an inner tooth gasket and a second connecting piece are sequentially arranged on one side of the outer part of the shell, an inner shell is arranged in the shell, an insulator and the central conductor are arranged in the inner shell, the central conductor consists of the inner conductor and a jack, and the insulator is used for insulating the outer conductor from the inner conductor; the inner conductor is connected with the third connecting piece, an insulating sleeve is arranged between the inner conductor and the third connecting piece, and the insulating sleeve enables the inner conductor to be insulated from the inner shell; the insulation sleeve is internally provided with a GDT (ceramic gas discharge tube), the GDT is provided with a gasket and a protective layer, a reed is arranged in the protective layer, and a first connecting piece is arranged outside the protective layer.

GDT (ceramic gas discharge tube) is also called inert gas discharge tube, and inside is full of inert gas, and the discharge mode is gas discharge, and itself has threshold voltage, and external voltage is greater than threshold voltage, and the pipe is punctured and is the short circuit state, leads high current to ground to realize protection connector and antenna feeder communication system, improve product, antenna feeder system life, GDT life can change at any time when the limit.

Furthermore, the inner conductor, the third connecting piece, the GDT, the gasket, the protective layer, the reed and the first connecting piece jointly form a lightning protection discharge system for lightning protection.

Preferably: the GDT is fixed through spanner area fastening to first connecting piece, makes its contact inseparable, and the sealing washer is established to first connecting piece inslot, guarantees the product gas tightness.

Preferably: the first connecting piece and the second connecting piece are both nuts, and the third connecting piece is a screw.

Preferably: the shell is standard connector N type shell, has second nut, internal tooth packing ring and packing ring outside the shell, and the connector installation of being convenient for is firm.

Preferably: the inner conductor and the jack are assembled in a press fit mode, the combined central conductor is combined, the integrated processing difficulty is high, the assembly is not easy, the split assembly reduces the processing difficulty, and the assembly is convenient.

Preferably: the third connecting piece is directly connected with the inner conductor, the inner conductor is milled flat to ensure that the horizontal and the third connecting piece are normally installed, the GDT, the third connecting piece, the gasket, the protective layer, the reed and the first nut form a discharge circuit, and when surge current is generated, the surge current is released through the discharge circuit to ensure that a communication system is normal.

Preferably: the insulating cover is that inner conductor and protective layer are insulating to be guaranteed, has GDT in the insulating cover, has gasket and protective layer on the GDT, and gasket and protective layer can ensure that GDT and third connecting piece contact closely, do not become flexible, can guarantee again not to damage GDT.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses the components of a whole that can function independently equipment alleviates the processing degree of difficulty and the assembly of being convenient for, and existing radio frequency coaxial connector transmission signal effect can in time discharge when producing surge current again, protection connector and communication system. The surge current can be rapidly grounded, the connecting equipment and the communication system can be effectively protected, the safety performance is improved, the cost is reduced, and the market competitiveness of products is improved.

Drawings

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

FIG. 1 is a front view of the internal structure of the present invention;

fig. 2 is a top view of the external structure of the present invention;

FIG. 3 is a state diagram of the present invention during lightning strike;

in the figure: 1-a jack; 2-an inner conductor; 3, an insulator; 4-an insulating sleeve; 5-an inner housing; 6-a protective layer; 7-a housing; 8-a first nut; 9-a second nut; 10-reed; 11-a gasket; 12-a gasket; 13-an internal tooth washer; 14-a third connection; 15-sealing ring, 16-outer conductor, 17-GDT.

Detailed Description

In the description of the present invention, it is to be understood that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The invention will be further explained with reference to the following embodiments and drawings:

as shown in fig. 1-3: the utility model provides a radio frequency arrester, includes shell 7, and there is second connecting piece 9 outside shell 7, and second connecting piece 9 right side is internal

tooth packing ring

13, and 13 right sides of ring gear are packing ring 12, shell 7 is standard connector N type shell, and it is firm to be convenient for install and install with the jointing equipment, establishes inside casing 5 in the shell 7, establishes the centre conductor in inside casing 5, and the centre conductor is the combination of inner conductor 2 and jack 1, and inner conductor 2 and jack 1 are for pressing the assembly, and the great and difficult assembly of the integrated processing degree of difficulty, components of a whole that can function independently equipment alleviate the processing degree of difficulty and the assembly of being convenient for.

Insulator 3 makes inner conductor 2 and outer conductor 16 insulating to be connected arrester with inner conductor 2, wherein third connecting piece 14 and inner conductor 2 lug connection, inner conductor 2 mills to flatten and can guarantee level and the normal installation of third connecting piece 14, there is insulating cover 4 in the middle of third connecting piece 14 and the inner conductor 2, there is GDT17 in the insulating cover 4, there are gasket 11 and protective layer 6 on the GDT17, gasket 11 and protective layer 6 can ensure that GDT and third connecting piece 14 contact are inseparable, do not become flexible, can guarantee again not to damage GDT 17.

Establish reed 10 in the protective layer 6, protective layer 6 has first connecting piece 8 outward, and first connecting piece 8 can normally be dismantled, the change of GDT17 of being convenient for, and the sealing washer 15 guarantees the product gas tightness in the 8 inslots of first connecting piece.

GDT17 forms discharge circuit with third connecting piece 14, gasket 11, protective layer 6, reed 10, first connecting piece 8, when surge current produced, releases surge current through discharge circuit, guarantees that communication system is normal.

The utility model discloses the theory of operation does:

because of the surge current that produces of external thunder and lightning, external voltage is greater than GDT17 threshold voltage this moment, GDT17 is the conductor state, and high voltage is released to earth rapidly, and after the voltage release, when equipment residual voltage is less than threshold voltage, GDT17 resumes initial open circuit state, and the arrester resumes normally rapidly this moment, guarantees that the system normally works.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. A radio frequency arrester, including shell (7), outer conductor (16) and central conductor, its characterized in that: an inner shell (5) is arranged in the shell (7), an insulator (3) and a central conductor are arranged in the inner shell (5), the central conductor consists of an inner conductor (2) and a jack (1), and the insulator (3) is used for insulating an outer conductor (16) from the inner conductor (2); the inner conductor (2) is connected with the third connecting piece (14), an insulating sleeve (4) is arranged between the inner conductor and the third connecting piece, and the inner conductor (2) is insulated from the inner shell (5) by the insulating sleeve (4); be equipped with GDT (17) in insulating cover (4), be equipped with gasket (11) and protective layer (6) on GDT (17), establish reed (10) in protective layer (6), first connecting piece (8) of protective layer (6) peripheral hardware.

2. A radio frequency arrester according to claim 1, characterized in that: the inner conductor (2), the third connecting piece (14), the GDT (17), the gasket (11), the protective layer (6), the reed (10) and the first connecting piece (8) jointly form a lightning protection discharge system for lightning protection.

3. A radio frequency arrester according to claim 1, characterized in that: and a gasket (12), an internal tooth gasket (13) and a second connecting piece (9) are sequentially arranged on one side of the outer part of the shell (7).

4. A radio frequency arrester according to claim 1, characterized in that: the GDT (17) is fastened and fixed by the first connecting piece (8) through a wrench belt, so that the GDT is tightly contacted, and a sealing ring (15) is arranged in a groove of the first connecting piece (8).

5. A radio frequency arrester according to claim 1, characterized in that: the inner conductor (2) is assembled with the jack (1) in a press fit mode, and the inner conductor (2) is milled flat.

6. A radio frequency arrester according to claim 1, characterized in that: GDT (17) is ceramic gas discharge tube, changes at any time as required.

7. A radio frequency arrester according to claim 1 or 3, characterized in that: the first connecting piece (8) and the second connecting piece (9) are both nuts, and the third connecting piece (14) is a screw.

8. A radio frequency arrester according to any one of claims 1 to 6, characterized in that: the shell (7) is a standard connector N-shaped shell.