CN213817232U

CN213817232U - Lightning protection and filtering protector for secondary power supply

Info

Publication number: CN213817232U
Application number: CN202022439316.4U
Authority: CN
Inventors: 要国伟
Original assignee: AERODEV ELECTROMAGNETIC TECH Inc
Current assignee: AERODEV ELECTROMAGNETIC TECH Inc
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-07-27
Anticipated expiration: 2030-10-28

Abstract

The utility model discloses a secondary power supply lightning protection filter protector, a serial communication port, including the casing, be equipped with modular design's lightning protection module and filter module in the casing, the both sides of lightning protection module and filter module are equipped with the input wiring end of connecting the electric wire netting through the power cord respectively and are used for the output wiring end of jointing equipment, and input wiring end, lightning protection module, filter module, output wiring end connect gradually, and the both ends of casing are located respectively to input wiring end and output wiring end. The utility model is safe and reliable, convenient for mass production, easy for customers to install, use, maintain and upgrade, and can effectively improve the electromagnetic compatibility of the transformer substation system; all the internal devices are modularized, so that the maintenance and the subsequent upgrading and updating are facilitated, the production process is modularized assembly, the automation can be realized, the production cost is reduced, and the reliability of the product is greatly improved.

Description

Lightning protection and filtering protector for secondary power supply

Technical Field

The utility model relates to a secondary power supply lightning protection filter protector belongs to the electromagnetic compatibility field.

Background

Along with the continuous development and progress of the society, the demand of various industries on electric power is gradually increased, the requirement on an electric power system is higher, and the strengthening of the construction of the electric power system becomes a current important task. The more complicated electromagnetic environment of the transformer substation system brings higher requirements on the protective devices, and the development prospect is wide.

The existing lightning protection filter protector is directly fixed in a shell, and has no modular design, when one part needs to be maintained, upgraded and updated, all parts need to be dismantled, and a new part is welded into the shell again, and the lightning protection filter protector has the disadvantages of complex wiring, high rejection rate, high production cost and low efficiency, so that the maintenance and upgrade cost is extremely high, and the lightning protection filter protector has no maintainability; the existing shell and the cover plate are of a buckle integrated structure and are in modular design, the inner devices are fixed on a PCB, and the shell is mounted on the shell through screws, so that the assembly and disassembly are very inconvenient.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: how to make the protector be fit for mass production, easily customer installation is used and is maintained the upgrading to can effectively promote the electromagnetic compatibility of transformer substation system.

In order to solve the technical problem, the technical scheme of the utility model a secondary power supply lightning protection and filtering protector is provided, a serial communication port, including the casing, be equipped with the lightning protection module and the filtering module of modular design in the casing, the both sides of lightning protection module and filtering module are equipped with the input wiring end of connecting the electric wire netting through the power cord respectively and are used for the output wiring end of jointing equipment, and input wiring end, lightning protection module, filtering module, output wiring end connect gradually, and the both ends of casing are located respectively to input wiring end and output wiring end.

Preferably, the shell is provided with a guide rail mounting buckle for connecting with a guide rail; the guide rail mounting buckle and the shell are arranged in a split mode.

Preferably, the shell comprises a shell and a cover plate, and the shell and the cover plate are connected through a locking structure; the input wiring end, the lightning protection module, the filtering module and the output wiring end are arranged in the shell, and the input wiring end and the output wiring end are arranged at two ends of the shell respectively.

Preferably, the input terminal and the output terminal are both connected by screw crimping.

Preferably, the main body materials of the shell, the cover plate, the input terminal, the output terminal and the guide rail mounting buckle are all engineering plastics.

The utility model is safe and reliable, convenient for mass production, easy for customers to install, use, maintain and upgrade, and can effectively improve the electromagnetic compatibility of the transformer substation system; all the internal devices are modularized, so that the maintenance and the subsequent upgrading and updating are facilitated, the production process is modularized assembly, the automation can be realized, the production cost is reduced, and the reliability of the product is greatly improved. The utility model is mainly used for the input port of the auxiliary power supply of the electric power secondary equipment in the transformer substation; typical conductive interference in the transformer substation, such as interference signals of fast transient pulse groups, damped oscillation waves, radio frequency conduction and the like, can be effectively inhibited, more complex electromagnetic interference caused by intelligent construction of the transformer substation can be effectively solved, and the application prospect is wide.

Compared with the prior art, the utility model discloses still have following advantage:

1. the protector of the utility model integrates filtering and lightning protection, and is designed in a single modularized way, thereby being convenient for maintenance and subsequent upgrading; the filter module in the protector adopts a bipolar filter circuit to improve the interference suppression capability of the filter, and can effectively suppress typical conductive interference in a transformer substation; the lightning protection module in the protector protects the lightning stroke or surge of the auxiliary power supply port of the industrial equipment, particularly protects the waveform of 8/20 mu s lightning stroke or surge interference current, and the maximum current capacity can reach 10 KA.

2. The protector of the utility model adopts standardized input and output wiring terminals and standardized guide rail buckles, the buckles and the protector shell are designed in a split way, corresponding guide rail buckles can be replaced for different guide rail models, and the universal type is strong;

3. the utility model discloses a protector shell adopts peculiar hasp structure with the apron, conveniently realizes repeated many times and opens and shuts, and the inside module of being convenient for is maintained and is upgraded.

Drawings

FIG. 1 is a schematic diagram of an external structure of a secondary power lightning protection filter protector;

fig. 2 is a schematic diagram of an internal structure of a secondary power lightning protection filter protector.

Detailed Description

In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.

The utility model provides a secondary power supply lightning protection filter protector, as shown in figure 1, figure 2, its outside comprises shell 1, apron 2, hasp structure 2.1, input wiring end 3,

output wiring end

4, 5 major components of guide rail installation buckle. The main materials of the shell 1 and the cover plate 2 are engineering plastics, and the design is provided with a special lock catch structure 2.1, so that the assembly is convenient to open and close for many times and is reliable in assembly. The main materials of the input wiring end 3 and the output wiring end 4 are engineering plastics, and the high universality is achieved by connecting wires through screw compression. The main body of the guide rail mounting buckle 5 is made of engineering plastics, is mounted on the shell 1 through screws and is reliably mounted with a corresponding guide rail, and the guide rail mounting buckle and the shell 1 are formed by split design and assembly, so that different buckle models can be selected according to different mounting occasions, and the universality is high. The housing 1 is covered with a cover plate 2 and is connected in a closed manner by a locking structure 2.1. The shell 1 is also provided with a guide rail mounting buckle 5 used for being connected with a guide rail.

As shown in fig. 2, the lightning protection module 6 and the filtering module 7 are of a modular design and are mounted on the housing 1, so that maintenance and subsequent upgrading are facilitated. The input wiring end 3, the lightning protection module 6, the filtering module 7 and the output wiring end 4 are connected in sequence and are all arranged in the shell 1.

When the utility model works, the electromagnetic interference signal in the power grid enters the protector of the utility model through the power line and the input wiring end 3, after the attenuation of the protector is inhibited, the electromagnetic interference signal level energy entering the system through the output wiring end 4 is quite weak, the normal work of other equipment in the system can not be influenced and interfered, and the safety protection function is played; similarly, when the equipment in the system normally works, the generated electromagnetic interference signal enters the protector through the output terminal 4, after the attenuation is inhibited by the protector, the level energy of the electromagnetic interference signal entering the power grid through the input terminal 3 is quite weak, the power grid is not influenced and polluted, and the functions of protecting and purifying the power grid are achieved.

Claims

1. The utility model provides a secondary power supply lightning protection filter protector, a serial communication port, which comprises a housin, be equipped with lightning protection module (6) and filter module (7) of modularized design in the casing, the both sides of lightning protection module (6) and filter module (7) are equipped with input wiring end (3) and output wiring end (4) that are used for connecting device of connecting the electric wire netting through the power cord respectively, input wiring end (3), lightning protection module (6), filter module (7), output wiring end (4) connect gradually, the both ends of casing are located respectively to input wiring end (3) and output wiring end (4).

2. The protector of claim 1, wherein the housing is provided with a rail mounting buckle (5) for connecting with a rail; the guide rail mounting buckle (5) and the shell are arranged in a split manner.

3. The lightning protection and filter protector for the secondary power supply according to claim 1 or 2, characterized in that the housing comprises a shell (1) and a cover plate (2), wherein the shell (1) and the cover plate (2) are connected through a locking structure (2.1); input wiring end (3), lightning protection module (6), filtering module (7), output wiring end (4) all locate in shell (1), and the both ends of shell (1) are located respectively to input wiring end (3) and output wiring end (4).

4. The protector for the lightning protection and filtering of the secondary power supply according to claim 1, characterized in that the input terminal (3) and the output terminal (4) are both connected by screw crimping.

5. The lightning protection and filter protector for secondary power supply according to claim 3, characterized in that the main materials of the shell (1), the cover plate (2), the input terminal (3), the output terminal (4) and the rail mounting buckle (5) are all engineering plastics.