CN213122182U

CN213122182U - Lightning protection testing arrangement of 5G basic station

Info

Publication number: CN213122182U
Application number: CN202021254542.9U
Authority: CN
Inventors: 黄政; 杨直文; 刘亮; 刘华志; 李发华
Original assignee: Shenzhen Outo Automation Technology Co ltd
Current assignee: Shenzhen Outo Automation Technology Co ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2021-05-04
Anticipated expiration: 2030-07-01

Abstract

The utility model relates to a 5G basic station test equipment technical field, concretely relates to lightning protection testing arrangement of 5G basic station, including the test bench, be fixed with the toughened glass wall on the test bench, the part that the test bench is located the toughened glass wall is provided with laboratory control cabinet, laboratory charge-discharge transformer, positive negative pole switching and water resistance relief device, 8/20us electric capacity district, 10/350us electric capacity district, laboratory discharge system and ignition system, laboratory test article cabinet and decoupling network and action load laboratory cabinet, toughened glass wall front end one side is provided with the toughened glass door, the front end that the test bench is located the toughened glass wall outside is provided with laboratory trigeminy operation panel; the utility model discloses an use the parallelly connected stack technique of three routes electric current, be convenient for debug wave head and wave tail parameter, through adopting two sets of discharge modes, can solve big platform and beat the unusual problem of undercurrent, satisfy under the same environment, from 100A to 25KA, under the 0.5 ohmic condition of internal resistance, all electric current shelves satisfy the national standard requirement.

Description

Lightning protection testing arrangement of 5G basic station

Technical Field

The utility model relates to a 5G basic station test equipment technical field, concretely relates to lightning protection testing arrangement of 5G basic station.

Background

Lightning protection devices (SPD for short, mainly comprising a signal lightning protection device and a power supply lightning protection device) are used for preventing equipment in lightning stroke from being damaged by modern electricity and other technologies. The lightning energy in the lightning arrester is absorbed mainly by a zinc oxide piezoresistor and a gas discharge tube. The lightning protection device is a device widely used for overvoltage protection, is particularly widely applied to the fields of communication, security protection and the like at present, particularly in the 5G era at present, the shipment volume of the signal lightning protection device is particularly large, and the requirements of complete machine products such as 5G communication and the like on signal SPDs are increasingly large. And an inspection procedure that SPD is not necessary is an impulse current test, the test requirement is more and more strict, the amplitude is large, and if 10/350us impact generated by a simulated lightning stroke platform meets the waveform requirement and limits the internal resistance to 0.5 ohm, the current peak value needs to be from 100A to dozens of KA. The common specification of the traditional lightning stroke simulation platform is 8/20us waveform, peak value 1-120KA, compatible 10/350us waveform and peak value 1-25 KA. The traditional test circuit principle is shown in fig. 5, and the circuit is realized by adopting an LRC circuit and a set of ball gap discharge mode, but the simulated lightning strike platform realized by the circuit has the following defects: firstly, the traditional mode adopts a group of capacitance resistance inductors, the wave head and the wave tail can be greatly influenced when the waveform is debugged, but the wave head is not necessarily within 10us plus or minus 10% when the wave tail is met, so that the traditional mode is realized, the general wave head is 30-35us, and the national standard requirement is not met; secondly, the influence of the ball gap discharge on the current peak value of the KA level is small, but the ball gap discharge is discharged in the current peak value gear of the Bai' an level, so that oscillation or steps can occur, and as the ball gap discharge mode belongs to a mechanical discharge mode, slight play can occur when a ball is contacted, so that the discharge effect is influenced.

Based on this, the utility model designs a lightning protection testing arrangement of 5G basic station to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the problem that proposes in the above-mentioned background art, provide a lightning protection testing arrangement of 5G basic station.

In order to achieve the above object, the utility model provides a following technical scheme: a lightning protection testing device of a 5G base station comprises a test bench, wherein a toughened glass wall is fixed on the test bench, a laboratory control cabinet, a laboratory charging and discharging transformer, a positive and negative switching and water resistance discharging device, an 8/20us capacitance area, a 10/350us capacitance area, a laboratory discharging system and an ignition system, a laboratory test sample cabinet, a decoupling network and an action load laboratory cabinet are arranged on the part of the test bench, which is positioned in the toughened glass wall, the laboratory control cabinet is in signal connection with the laboratory charging and discharging transformer and the positive and negative switching and water resistance discharging device, the laboratory charging and discharging transformer and the positive and negative switching and water resistance discharging device are electrically connected with a 8/20us capacitance area and a 10/350us capacitance area, the 8/20us capacitance area and a 10/350us capacitance area are electrically connected with the laboratory discharging system and the ignition system, laboratory discharge system and ignition system electric connection laboratory test article cabinet, toughened glass wall front end one side is provided with the toughened glass door, the front end that the test bench is located the toughened glass wall outside is provided with laboratory trigeminy operation panel, laboratory trigeminy operation panel is including data acquisition Agilent oscilloscope, laboratory control 10 cun industrial touch screen and data record 19 cun touch computer, laboratory test article cabinet signal connection data acquisition Agilent oscilloscope, 10 cun industrial touch screen bidirectional signal connection laboratory control cabinet are controlled in the laboratory, data acquisition Agilent oscilloscope bidirectional signal connection data record 19 cun touch computer.

Furthermore, the 10/350us capacitance area circuit includes a capacitor C1, a capacitor C2, a capacitor C3, a discharge ball gap D and a silicon controlled SCR, one end of each of the capacitor C1, the capacitor C2, the capacitor C3, the discharge ball gap D and the silicon controlled SCR is grounded, the other end of each of the capacitor C1, the capacitor C2 and the capacitor C3 is respectively connected in series with an inductor L1, an inductor L2 and an inductor L3, the other end of each of the inductor L1, the inductor L2 and the inductor L3 is respectively connected in series with a resistor R1, a resistor R2 and a resistor R3, the other end of each of the resistor R1, the resistor R2 and the resistor R3 is connected with a resistor R, and the other end of the resistor R is respectively connected with the discharge ball gap D and the other end of the silicon controlled.

Further, the capacitor C1 is a capacitor with a capacitance of 200 μ F formed by connecting two capacitors in parallel, the capacitor C2 is a capacitor with a capacitance of 300 μ F formed by connecting three capacitors in parallel, the capacitor C3 is a capacitor with a capacitance of 300 μ F formed by connecting three capacitors in parallel, the inductance of the inductor L1 is 1 μ H, the inductance of the inductor L2 is 16 μ H, the inductance of the inductor L3 is 60 μ H, the resistance of the resistor R1 is 240M Ω, the resistance of the resistor R2 is 340M Ω, the resistance of the resistor R3 is 250M Ω, and the resistance of the resistor R is 220M Ω.

Furthermore, electromagnetic shielding nets are arranged around the test bed, and the electromagnetic shielding nets are one of aluminum wire nets and steel wire nets.

Further, the thickness of toughened glass wall and toughened glass door is 12mm, the width of toughened glass door is 1 m.

Furthermore, a wire passing hole is reserved on the toughened glass door.

Compared with the prior art, the beneficial effects of the utility model are that: firstly, the utility model can conveniently debug wave head and wave tail parameters by using three paths of current parallel superposition technology, and can meet the national standard requirements; secondly the utility model discloses an adopt two sets of discharge modes, discharge ball gap D discharge mode and silicon controlled rectifier SCR discharge mode, can solve big platform and make the unusual problem of undercurrent, satisfy under the same environment that the customer required, from 100A to 25KA, under the 0.5 ohmic circumstances of internal resistance, all electric current shelves satisfy the national standard requirement.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings 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 creative efforts.

FIG. 1 is a schematic structural view of the present invention;

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

FIG. 3 is a schematic view of the connection structure of the present invention;

fig. 4 is a circuit diagram of 10/350us capacitor area according to the present invention;

fig. 5 is a circuit diagram of conventional 8/20us and 10/350us capacitor regions.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a toughened glass wall; 2. a laboratory control cabinet; 3. a laboratory charging transformer; 4. positive and negative pole switching and water resistance relief equipment; 5. 8/20us capacitance area; 6. 10/350us capacitance area; 7. a laboratory discharge system and an ignition system; 8. laboratory test sample cabinets; 9. a decoupling network and an action load experiment cabinet; 10. a tempered glass door; 11. a laboratory triple operating table; 1101. an agilent oscilloscope for data acquisition; 1102. operating a 10-inch industrial touch screen in a laboratory; 1103. data recording 19 inch touch computer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-5, the present embodiment provides a technical solution: the lightning protection testing device of the 5G base station comprises a test bench, a toughened glass wall 1 is fixed on the test bench, a laboratory control cabinet 2, a laboratory charging and discharging transformer 3, a positive and negative switching and water resistance discharge device 4, an 8/20us capacitance area 5, a 10/350us capacitance area 6, a laboratory discharge system and ignition system 7, a laboratory test article cabinet 8, a decoupling network and an action load laboratory cabinet 9 are arranged on the part of the test bench positioned in the toughened glass wall 1, the decoupling network and the action load laboratory cabinet 9 are used in an online experiment, the laboratory control cabinet 2 is in signal connection with the laboratory charging and discharging transformer 3 and the positive and negative switching and water resistance discharge device 4, the laboratory charging and discharging transformer 3 and the positive and negative switching and water resistance discharge device 4 are electrically connected with the 8/20us capacitance area 5 and the 10/350us capacitance area 6, the 8/20us capacitance area 5 and the 10/350us capacitance area 6 are electrically connected with the laboratory discharge system and the ignition device 4 The system 7 is characterized in that the laboratory discharge system and the ignition system 7 are electrically connected with a laboratory test article cabinet 8, one side of the front end of the toughened glass wall 1 is provided with a toughened glass door 10, the front end of the test bed, which is positioned on the outer side of the toughened glass wall 1, is provided with a laboratory triple operating platform 11, the laboratory triple operating platform 11 comprises a data acquisition Agilent oscilloscope 1101, a laboratory control 10-inch industrial touch screen 1102 and a data recording 19-inch touch computer 1103, the laboratory test article cabinet 8 is in signal connection with the data acquisition Agilent oscilloscope 1101, the laboratory control 10-inch industrial touch screen 1102 is in bidirectional signal connection with the laboratory control cabinet 2, the data acquisition Agilent oscilloscope is in bidirectional signal connection with the data recording 19-inch touch computer 1103, the data recording 19-inch touch computer 1103 is loaded with AT3181-S measurement software, the oscilloscope can automatically acquire waveforms and test the waveform between the wave head time and the wave tail half peak of the waveform, And analyzing and displaying peak current and waveform energy.

The 10/350us capacitor area 6 circuit comprises a capacitor C1, a capacitor C2, a capacitor C3, a discharge ball gap D and a silicon controlled SCR, one end of the capacitor C1, a capacitor C2, a capacitor C3, the discharge ball gap D and one end of the silicon controlled SCR are all grounded, the other ends of the capacitor C1, the capacitor C2 and the capacitor C3 are respectively connected in series with an inductor L1, an inductor L2 and an inductor L3, the other ends of the inductor L1, the inductor L2 and the inductor L3 are respectively connected in series with a resistor R1, a resistor R2 and a resistor R3, the other ends of the resistor R1, the resistor R2 and the resistor R3 are all connected with a resistor R, and the other end of the resistor R is respectively connected with the discharge ball gap D and the other end of. The capacitor C1 is a capacitor with the capacitance of 200 muF formed by connecting two capacitors in parallel, the capacitor C2 is a capacitor with the capacitance of 300 muF formed by connecting three capacitors in parallel, the capacitor C3 is a capacitor with the capacitance of 300 muF formed by connecting three capacitors in parallel, the inductance of the inductor L1 is 1 muH, the inductance of the inductor L2 is 16 muH, the inductance of the inductor L3 is 60 muH, the resistance of the resistor R1 is 240 MOmega, the resistance of the resistor R2 is 340 MOmega, the resistance of the resistor R3 is 250 MOmega, and the resistance of the resistor R is 220 MOmega. The periphery of the test bed is provided with an electromagnetic shielding net which is one of an aluminum wire net and a steel wire net. The thickness of the toughened glass wall 1 and the toughened glass door 10 are both 12mm, and the width of the toughened glass door 10 is 1 m. The toughened glass door 10 is reserved with a wire passing hole for passing a radio frequency wire and a control cabinet.

The utility model discloses a theory of operation does: the utility model discloses during the use, control 10 cun industry touch-sensitive screen 1102 through the laboratory and control laboratory control cabinet 2, insert laboratory charge-discharge transformer 3 with 5 line electricity of three-phase, laboratory control cabinet 2 controls laboratory charge-discharge transformer 3 and charges for 8/20us

electric capacity district

5 and 10/350us electric capacity district 6, stop when dashing preset voltage, control 10 cun industry touch-sensitive screen 1102 control 8/20us

electric capacity district

5 and 10/350us electric capacity district 6 in discharge ball gap D and carry out the short circuit and discharge through the laboratory, discharge ball gap D can adopt the graphite ball. The current wave generated by the short circuit discharge is collected through the Rogowski coil and transmitted to the data collection Agilent oscilloscope 1101, the data collection Agilent oscilloscope 1101 is communicated with the data recording 19-inch touch computer 1103, and the collected data is analyzed and filed. The utility model discloses during the use, 8/20us electric capacity district 5's circuit still adopts traditional test circuit, 10/350us electric capacity district 6 adopts multichannel stack mode and adopts two discharge systems, divide three groups and above way number, plus a resistance R carries out the current waveform stack, do a set of alone to the electric capacity that the ripples head was adjusted, can make things convenient for only to transfer the ripples head, do not influence the pleasing to the eye degree of ripples tail or wave form basically, the unsmooth two sets of electric capacity that use of middle section wave form realizes, adjust the pleasing to the eye degree of wave form and small amplitude regulation ripples tail, the length of ripples tail is adjusted with resistance R, the waveform parameter that accords with the standard of transferring that such way can be convenient, under the condition of satisfying the ripples tail, the ripples head can reach T1 ═ 10us, ± 50%, generally about 12 us. Under the same environment, 10/350us requires current peak value 100A-25KA, and it is difficult for a large-scale experiment table to do below the KA level, so through many experiments, a double discharge mode is adopted, a discharge ball gap D discharge mode is adopted for gears above the KA level, multiple voltage-resistant protection is carried out for gears below the KA level, and a Silicon Controlled Rectifier (SCR) electronic discharge mode is adopted, so that the problem that the KA level impact table meets the requirement of a hundred-ampere level current gear can be solved.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a lightning protection testing arrangement of 5G basic station, includes the test bench, its characterized in that: be fixed with toughened glass wall (1) on the test bench, the part that the test bench is located toughened glass wall (1) is provided with laboratory control cabinet (2), laboratory charge and discharge transformer (3), positive negative pole switch and water resistance bleeder devices (4), 8/20us electric capacity district (5), 10/350us electric capacity district (6), laboratory discharge system and ignition system (7), laboratory test article cabinet (8) and decoupling network and action load laboratory cabinet (9), laboratory control cabinet (2) signal connection laboratory charge and discharge transformer (3) and positive negative pole switch and water resistance bleeder devices (4), laboratory charge and discharge transformer (3) and positive negative pole switch and water resistance bleeder devices (4) electric connection 8/20us electric capacity district (5) and 10/350us electric capacity district (6), 8/20us electric capacity district (5) and 10/350us electric capacity district (6) electric connection laboratory discharge An electric system and an ignition system (7), wherein the laboratory discharge system and the ignition system (7) are electrically connected with a laboratory test sample cabinet (8), a toughened glass door (10) is arranged on one side of the front end of the toughened glass wall (1), a laboratory triple operating platform (11) is arranged at the front end of the test bed, which is positioned on the outer side of the toughened glass wall (1), the laboratory triple operation table (11) comprises a data acquisition Agilent oscilloscope (1101), a laboratory control 10-inch industrial touch screen (1102) and a data recording 19-inch touch computer (1103), the laboratory test sample cabinet (8) is connected with a data acquisition Agilent oscilloscope (1101) through signals, the laboratory controls a 10-inch industrial touch screen (1102) to be in bidirectional signal connection with a laboratory control cabinet (2), the data acquisition Agilent oscilloscope (1101) is connected with a 19-inch touch computer (1103) through bidirectional signals.

2. The lightning protection testing device of the 5G base station as claimed in claim 1, wherein: the 10/350us capacitor area (6) circuit comprises a capacitor C1, a capacitor C2, a capacitor C3, a discharging ball gap D and a silicon controlled SCR, wherein one end of the capacitor C1, one end of the capacitor C2, one end of the capacitor C3, one end of the discharging ball gap D and one end of the silicon controlled SCR are grounded, the other end of the capacitor C1, the other end of the capacitor C2 and one end of the capacitor C3 are respectively connected in series with an inductor L1, an inductor L2 and an inductor L3, the other end of the inductor L1, the other end of the inductor L2 and the other end of the inductor L3 are respectively connected in series with a resistor R1, a resistor R2 and a resistor R3, the other end of the resistor R1, the other end of the resistor R2 and the other end of the resistor R3 are respectively.

3. The lightning protection testing device of the 5G base station as claimed in claim 2, wherein: the capacitor C1 is a capacitor with a capacitance of 200 muF formed by connecting two capacitors in parallel, the capacitor C2 is a capacitor with a capacitance of 300 muF formed by connecting three capacitors in parallel, the capacitor C3 is a capacitor with a capacitance of 300 muF formed by connecting three capacitors in parallel, the inductance of the inductor L1 is 1 muH, the inductance of the inductor L2 is 16 muH, the inductance of the inductor L3 is 60 muH, the resistance of the resistor R1 is 240 MOmega, the resistance of the resistor R2 is 340 MOmega, the resistance of the resistor R3 is 250 MOmega, and the resistance of the resistor R is 220 MOmega.

4. The lightning protection testing device of the 5G base station as claimed in claim 1, wherein: the electromagnetic shielding net is arranged around the test bed and is one of an aluminum wire net and a steel wire net.

5. The lightning protection testing device of the 5G base station as claimed in claim 1, wherein: the thickness of toughened glass wall (1) and toughened glass door (10) is 12mm, the width of toughened glass door (10) is 1 m.

6. The lightning protection testing device of the 5G base station as claimed in claim 1, wherein: and a wire passing hole is reserved on the toughened glass door (10).