Medium-high voltage thyristor assembly structure

Abstract

The utility model discloses a medium-high voltage thyristor assembly structure, which belongs to the technical field of high-voltage motors and comprises a medium-high voltage thyristor assembly unit, the bottom of the medium-high voltage thyristor assembly unit is connected with a chassis truck; the control module is connected with the chassis vehicle, the control module is used for controlling the working state of the middle-high voltage thyristor assembly unit, and the control module is in wire connection with an aviation connecting plug wire harness; by adopting the handcart type assembly, the whole cabinet is more convenient and simpler to assemble, the assembly is insulated and high in safety, the control unit and the aviation plug interface are adopted, so that the whole cabinet is convenient and simple to wire, the whole cabinet assembling time is shortened, the internal thyristor valve group uses bidirectional thyristors, the structure is compact, the PCBA board and the trigger PCBA board adopt a screw-free plug-in mode, and the whole cabinet is more convenient to assemble. Installation and maintenance are easy and convenient, installation steps and cost are reduced, no insulating nylon screws are used, and no insulating potential safety hazards exist.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage motor technology, specifically to a medium- and high-voltage thyristor assembly structure. Background Technology

[0002] The medium- and high-voltage thyristor assembly unit is a core component of solid-state medium- and high-voltage motor control soft starters, medium- and high-voltage voltage and power regulating devices, and medium- and high-voltage solid-state switches. The assembly unit realizes the series connection, installation, and fixing of high-voltage thyristors, as well as the installation and connection of thyristor triggering and RC snubber PCBAs. Due to the existence of various PCBAs and three-phase high-voltage thyristor series units, the general design typically involves independent three-phase thyristor series valve groups and independent control board PCBAs. These components are then assembled, installed, and wired separately during the assembly of the electrical cabinet. This results in too many scattered components, complex assembly and wiring, and is prone to problems such as insulation leaks, safety hazards, assembly errors, and poor maintainability.

[0003] Some manufacturers use a handcart-style component approach, but this is just a simple combination, and complex fixed wiring is still required when assembling valve groups and PCBAs. Summary of the Invention

[0004] To address the problems of existing technologies, this utility model provides a medium-high voltage thyristor assembly structure, comprising: a medium-high voltage thyristor assembly unit, the bottom of which is connected to a chassis vehicle;

[0005] A control module is connected to the chassis vehicle. The control module is used to control the working status of the medium and high voltage thyristor assembly unit. The control module is connected to the chassis vehicle via an aviation connector.

[0006] Furthermore, the medium- and high-voltage thyristor assembly unit includes: a bracket and a bidirectional thyristor assembly, a trigger PCBA board, and a resistor-capacitor PCBA board respectively connected to the bracket;

[0007] The bottom of the bracket is connected to the top of the chassis vehicle;

[0008] The resistor-capacitor PCBA board, the trigger PCBA board, and the bidirectional thyristor assembly are arranged at intervals, with the resistor-capacitor PCBA board located between the trigger PCBA board and the bidirectional thyristor assembly.

[0009] Furthermore, the bracket is made of insulating material.

[0010] Furthermore, insulating plates are provided on the sides and top of the medium- and high-voltage thyristor assembly unit, and the insulating plates are connected to the bracket.

[0011] Furthermore, the bidirectional thyristor assembly is provided with an input copper busbar and an output copper busbar, which are arranged symmetrically vertically and both pass through the insulating plate.

[0012] Furthermore, the control module includes: a control compartment and a control unit;

[0013] The bottom of the control compartment is connected to the top of the chassis vehicle, and the control unit is installed inside the control compartment;

[0014] The aviation connector harness is installed on the control compartment and connected to the control unit, which is used to control the working status of the high-voltage thyristor assembly unit in the control.

[0015] The beneficial effects of this utility model are:

[0016] This application adopts a handcart-type component, which makes the assembly of the whole cabinet more convenient and simple. The component has high insulation and safety, and the use of control unit and aviation plug interface makes the wiring of the whole cabinet convenient and simple, reducing the assembly time of the whole cabinet. The internal thyristor valve group uses bidirectional thyristors, which has a compact structure. The PCBA board and trigger PCBA board adopt a screwless plug-in method, which simplifies installation and maintenance, reduces installation steps and costs, and eliminates the use of insulated nylon screws, thus eliminating insulation safety hazards. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of the medium-high voltage thyristor assembly structure provided by this utility model;

[0018] Figure 2 A schematic diagram of the internal structure of the medium- and high-voltage thyristor assembly unit provided by this utility model.

[0019] Figure label:

[0020] In the diagram: 1 is the medium-high voltage thyristor assembly unit, 2 is the chassis vehicle, 3 is the aviation connector wiring harness, 4 is the bracket, 5 is the bidirectional thyristor assembly, 6 is the trigger PCBA board, 7 is the RC PCBA board, 8 is the insulation board, 9 is the input copper busbar, 10 is the output copper busbar, and 11 is the control compartment. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figure 1-2This utility model provides a medium-high voltage thyristor assembly structure, including: a medium-high voltage thyristor assembly unit 1, the bottom of which is connected to a chassis vehicle 2;

[0023] The control module is connected to the chassis vehicle 2. The control module is used to control the working state of the medium and high voltage thyristor assembly unit 1. The control module is connected to the wiring harness 3 via a connector.

[0024] The main inventive point of this application is that the medium and high voltage thyristor assembly unit and its related control are all integrated on a standard chassis vehicle, and the aviation connector wiring harness is used as the control interface to simplify installation and maintenance, and the devices using this unit can be pre-wired.

[0025] The medium-high voltage thyristor assembly unit 1 includes: a bracket 4 and a bidirectional thyristor assembly 5, a trigger PCBA board 6 and a resistor-capacitor PCBA board 7, which are respectively connected to the bracket 4.

[0026] The bottom of the bracket 4 is connected to the top of the chassis vehicle 2, and the bracket 4 is made of insulating material;

[0027] The resistor-capacitor PCBA board 7, the trigger PCBA board 6, and the bidirectional thyristor assembly 5 are arranged at intervals, with the resistor-capacitor PCBA board 7 located between the trigger PCBA board 6 and the bidirectional thyristor assembly 5.

[0028] The bracket has only slots, and the resistor-capacitor PCBA board and the trigger PVBA board are connected to the bracket by snap-fit, thereby increasing the ease of installation.

[0029] In addition, there are multiple sets of medium and high voltage thyristor assembly units, which can be set according to the actual situation.

[0030] Insulating plates 8 are provided on the side and top of the medium- and high-voltage thyristor assembly unit 1, and the insulating plates 8 are connected to the bracket 4.

[0031] The top insulating plate can be connected to the bracket by plugging, while the side plates can be connected by screws.

[0032] In some embodiments, the bidirectional thyristor assembly 5 is provided with an input copper busbar 9 and an output copper busbar 10, which are arranged symmetrically vertically and both pass through the insulating plate 8; wherein, the input copper busbar and the output copper busbar are used for conducting electricity.

[0033] In some embodiments, the control module includes: a control compartment 11 and a control unit;

[0034] The bottom of the control compartment 11 is connected to the top of the chassis vehicle 2, and the control unit is installed inside the control compartment 11;

[0035] The aviation connector harness 3 is installed on the control compartment 11 and connected to the control unit, which is used to control the working status of the high voltage thyristor assembly unit 1 in the control system.

[0036] The control unit is where all low-voltage controls (circuit boards, etc.) are centrally installed in the control compartment, which is then installed on the chassis vehicle.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A medium-high voltage thyristor assembly structure, characterized in that, include: Chassis vehicle; A medium- and high-voltage thyristor assembly unit, the bottom of which is connected to the chassis vehicle; The control module is connected to the chassis vehicle and is used to control the working status of the medium and high voltage thyristor assembly unit. The control module and the medium and high voltage thyristor assembly unit are connected by wires through aviation connector harnesses.

2. The medium-high voltage thyristor assembly structure according to claim 1, characterized in that, The medium-high voltage thyristor assembly unit includes: a bracket and a bidirectional thyristor assembly, a trigger PCBA board, and a resistor-capacitor PCBA board respectively connected to the bracket; The bottom of the bracket is connected to the top of the chassis vehicle; The resistor-capacitor PCBA board, the trigger PCBA board, and the bidirectional thyristor assembly are arranged at intervals, with the resistor-capacitor PCBA board located between the trigger PCBA board and the bidirectional thyristor assembly.

3. The medium-high voltage thyristor assembly structure according to claim 2, characterized in that, The bracket is made of insulating material.

4. The medium-high voltage thyristor assembly structure according to claim 2, characterized in that, Insulating plates are provided on the sides and top of the medium- and high-voltage thyristor assembly unit, and the insulating plates are connected to the bracket.

5. The medium-high voltage thyristor assembly structure according to claim 4, characterized in that, The bidirectional thyristor assembly is provided with an input copper busbar and an output copper busbar, which are arranged symmetrically vertically and both pass through the insulating plate.

6. The medium-high voltage thyristor assembly structure according to claim 1, characterized in that, The control module includes: a control compartment and a control unit; The bottom of the control compartment is connected to the top of the chassis vehicle, and the control unit is installed inside the control compartment; The aviation connector harness is installed on the control compartment and connected to the control unit, which is used to control the working status of the medium and high voltage thyristor assembly unit.

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