A controller high-voltage port for electromagnetic interference protection

Abstract

This utility model discloses a high-voltage port for an electromagnetic interference-resistant controller, comprising a high-voltage port body, a protective shell disposed on the upper part of the high-voltage port body, multiple insertion holes perforated through the side wall of the protective shell, and positioning devices perforated within each of the insertion holes. A support device is fixedly connected to the lower end of the high-voltage port body at a corresponding position, and a heat dissipation device is perforated through the upper end of the protective shell. This utility model has the advantages of preventing electromagnetic interference to the high-voltage port, strengthening protection, and ensuring heat dissipation.

Description

Technical Field

[0001] This utility model relates to the field of controller high-voltage port technology, specifically to a controller high-voltage port that is protected against electromagnetic interference. Background Technology

[0002] The high-voltage port of the controller is an interface component that connects high-voltage signals to external devices in industrial automation, power electronics, and new energy systems. As an energy transmission channel and electrical isolation boundary, it is responsible for carrying out power distribution, measurement, or control tasks exceeding the safe voltage threshold. Unlike low-voltage I / O ports, it directly participates in the interaction of the main power circuit. The high-voltage port of the controller is not only a simple electrical connection interface, but also a complex system component that integrates energy conduction, signal interaction, and safety protection. Its design needs to comprehensively consider multiple factors such as electrical performance, mechanical strength, environmental adaptability, and safety specifications. It is a key link in the reliability construction of industrial control systems.

[0003] In existing technologies, the high-voltage port of the controller needs to be protected against external electromagnetic interference during practical use. To mitigate this impact, we propose an electromagnetic interference-proof high-voltage port for the controller. Utility Model Content

[0004] The purpose of this invention is to provide a high-voltage port for a controller that is protected against electromagnetic interference, so as to solve the problems existing in the prior art as described in the background.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-voltage port for an electromagnetic interference-proof controller includes a high-voltage port body, a protective shell at the top of the high-voltage port body, multiple insertion holes through the side wall of the protective shell, positioning devices through each of the multiple insertion holes, a support device fixedly connected to the lower end of the high-voltage port body at the corresponding position, and a heat dissipation device through the upper end of the protective shell.

[0007] Preferably, the positioning device includes a positioning post that penetrates the socket and passes through the side wall of the high-voltage port body. A magnetic sheet is fixedly connected to the tail end of the positioning post, and a shielding sleeve is provided on the side wall of the positioning post.

[0008] Preferably, the support device includes a fixed base fixedly connected to the lower end of the high-voltage port body, and a base fixedly connected to the lower end of the fixed base. The base has multiple grooves that are provided through it, and the positions of the multiple grooves correspond to the positions of the positioning piles. Metal sheets are embedded in the inner walls of the multiple grooves.

[0009] Preferably, the heat dissipation device includes a heat dissipation groove that runs through the upper end of the protective shell, and a shielding mesh is provided at the opening of the heat dissipation groove.

[0010] Preferably, multiple wire grooves are provided through all four sides of the protective shell, and shielding pads are fixedly connected to the inner walls of the multiple wire grooves.

[0011] Preferably, a partition is provided above the heat dissipation groove, and multiple placement columns are fixedly connected to the lower end of the partition. Each of the multiple placement columns has an additional magnetic sheet at its tail end, and the tail ends of the multiple placement columns are magnetically attracted to the shielding mesh through the magnetic sheet.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In this utility model, by setting up a positioning device, a support device and a heat dissipation device to cooperate with each other, the operator can design a snap-fit ​​protective shell at the high-voltage port body. The protective shell is positioned and installed by multiple positioning stakes and can be connected with the corresponding base. A heat dissipation groove with a shielding mesh is designed on the top of the protective shell to facilitate heat dissipation. A partition is also designed above the heat dissipation groove to reduce dust falling into the heat dissipation groove. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the high-voltage port of a controller for electromagnetic interference protection proposed in this utility model;

[0015] Figure 2 This is a top view schematic diagram of a protective shell for the high-voltage port of a controller that provides electromagnetic interference protection, as proposed in this utility model.

[0016] In the diagram: 1 High-voltage port body, 2 Protective shell, 3 Cable trough, 4 Shielding pad, 5 Positioning post, 6 Magnetic sheet, 7 Fixing seat, 8 Base, 9 Heat dissipation groove, 10 Shielding mesh, 11 Placement column, 12 Partition. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Reference Figure 1-2A high-voltage port for an electromagnetic interference-resistant controller includes a high-voltage port body 1, which is made of high-strength insulating material and can withstand high-voltage environments above 10kV. A protective shell 2 is installed on the top of the high-voltage port body 1. The protective shell is integrally formed from aluminum alloy and has excellent electromagnetic shielding performance. Multiple sockets are provided through the side wall of the protective shell 2. The shell adopts a standardized industrial size design to ensure compatibility with various connectors. Positioning devices are installed through the sockets. The positioning devices adopt a unique double locking mechanism. The positioning devices include positioning posts 5 installed through the sockets. The surface of the positioning posts is plated with a nickel layer to improve conductivity. The positioning posts 5 penetrate the side wall of the high-voltage port body 1. The penetration is waterproofed with a rubber sealing ring. A magnetic sheet 6 is fixedly connected to the tail end of the positioning post 5. The magnetic sheet is a neodymium iron boron strong magnet with a magnetic force of N52 level. A shielding sleeve is provided on the side wall of the positioning post 5. The sleeve contains conductive carbon fiber components and can provide 360-degree omnidirectional shielding.

[0019] A support device is fixedly connected to the lower end of the high-voltage port body 1 at the corresponding position. The support device has been optimized through finite element analysis to ensure mechanical strength. The support device includes a fixed seat 7 fixedly connected to the lower end of the high-voltage port body 1. The fixed seat is made of magnesium alloy to reduce the overall weight. A base 8 is fixedly connected to the lower end of the fixed seat 7. The bottom of the base is equipped with an anti-slip rubber pad with a friction coefficient of more than 0.8. Multiple grooves are provided through the base 8. The grooves are precision machined by CNC with a tolerance controlled within ±0.02mm. The positions of the multiple grooves correspond to the positions of the positioning stakes 5, forming a complete guide and positioning system. Metal sheets are embedded in the inner walls of the multiple grooves. The metal sheets are made of copper-silver alloy with a contact resistance of less than 0.5mΩ.

[0020] Specifically, a heat dissipation device is installed through the upper end of the protective shell 2. The heat dissipation device has been optimized by computational fluid dynamics simulation. The heat dissipation device includes a heat dissipation groove 9 installed through the upper end of the protective shell 2. The heat dissipation groove adopts a honeycomb structure design, which increases the heat dissipation area by 50%. A shielding mesh 10 is installed at the opening of the heat dissipation groove. The mesh count of the shielding mesh is 80 meshes, and the air permeability is 65% while attenuating 30dB of electromagnetic interference.

[0021] Specifically, multiple cable trays 3 are provided through all four sides of the protective shell 2. The cable trays adopt a stepped design to facilitate cable management. Shielding pads 4 are fixedly connected to the inner walls of the multiple cable trays 3. The shielding pads are multi-layer composite structures, including conductive cloth and wave-absorbing materials. A partition 12 is provided above the heat dissipation slot 9. The partition is made of alumina ceramic material, which has good flame-retardant properties. Multiple placement columns 11 are fixedly connected to the lower end of the partition 12. The placement columns are hollow, and the internal wiring can reduce electromagnetic radiation. Additional magnetic sheets 6 are provided at the tail ends of the multiple placement columns 11. These auxiliary magnetic sheets can adjust the magnetic field distribution. The tail ends of the multiple placement columns 11 are magnetically attracted to the shielding mesh through the magnetic sheets 6, forming a structure that can be quickly disassembled and maintained.

[0022] In this utility model, after the operator closes the protective shell 2, multiple positioning posts 5 are inserted into each socket and their lower ends are respectively engaged in each groove. The shielding operation is completed by classifying each connected wire into the corresponding wire groove 3. The heat dissipation groove 9 designed on the top of the protective shell 2 can be used for heat conduction. The shielding mesh 10 can ensure the normal shielding properties while ensuring heat dissipation. The partition 12 designed on the top is located directly above the heat dissipation groove 9 and can be used to prevent dust from falling and reduce dust accumulation.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-voltage port for an electromagnetic interference-resistant controller, comprising a high-voltage port body (1), characterized in that, A protective shell (2) is provided above the high-voltage port body (1). Multiple insertion holes are provided through the side wall of the protective shell (2). A positioning device is provided through each of the multiple insertion holes. A support device is fixedly connected to the lower end of the high-voltage port body (1) at the corresponding position. A heat dissipation device is provided through the upper end of the protective shell (2).

2. The high-voltage port of the controller for electromagnetic interference protection according to claim 1, characterized in that, The positioning device includes a positioning stake (5) that penetrates the socket and passes through the side wall of the high-voltage port body (1). A magnetic sheet (6) is fixedly connected to the tail end of the positioning stake (5). A shielding sleeve is provided on the side wall of the positioning stake (5).

3. The high-voltage port of the controller for electromagnetic interference protection according to claim 1, characterized in that, The support device includes a fixed base (7) fixedly connected to the lower end of the high-voltage port body (1). A base (8) is fixedly connected to the lower end of the fixed base (7). Multiple grooves are provided through the base (8). The positions of the multiple grooves correspond to the positions of the positioning stakes (5). Metal sheets are inlaid on the inner walls of the multiple grooves.

4. The high-voltage port of the controller for electromagnetic interference protection according to claim 1, characterized in that, The heat dissipation device includes a heat dissipation groove (9) that runs through the upper end of the protective shell (2), and a shielding mesh (10) is provided at the opening of the heat dissipation groove (9).

5. The high-voltage port of the controller for electromagnetic interference protection according to claim 1, characterized in that, Multiple wire grooves (3) are provided through all four sides of the protective shell (2), and shielding pads (4) are fixedly connected to the inner walls of the multiple wire grooves (3).

6. The high-voltage port of the controller for electromagnetic interference protection according to claim 4, characterized in that, A partition (12) is provided above the heat dissipation groove (9). Multiple placement columns (11) are fixedly connected to the lower end of the partition (12). Each of the multiple placement columns (11) has an additional magnetic sheet (6) at its tail end. The tail ends of the multiple placement columns (11) are magnetically attracted to the shielding mesh (10) through the magnetic sheet (6).

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