A shielded housing for an electromagnetic interference resistant reactive power compensation controller

Abstract

The utility model discloses a kind of reactive power compensation controller shielding shell of anti-electromagnetic interference, it is related to reactive power compensation controller technical field, and it includes: bearing component and shielding component, the front and rear side position of the shielding component is equipped with incoming-outgoing line component, the side of the bearing component is equipped with grounding component, the bearing component includes insulating plate, the outside of the insulating plate is provided with first metal shell, the upside of the insulating plate is provided with sealing ring, the side of the first metal shell is equipped with second clamping groove. By first metal shell and second metal shell, the degree of improvement of anti-electromagnetic interference is completely, by grounding component, static electricity or current passing outside bearing component and shielding component is promptly led out, reduce the electromagnetic interference to reactive power compensation controller, by incoming-outgoing line component, the connection of dismounting mouth and incoming-outgoing line is sealed, while can resist electromagnetic interference, by clamping plate, the dismounting of incoming-outgoing line component is completed, the degree of convenience of installation is improved.

Description

Technical Field

[0001] This utility model relates to the field of reactive power compensation controller technology, and in particular to a shielded housing for a reactive power compensation controller that is resistant to electromagnetic interference. Background Technology

[0002] Reactive power compensation controllers are core devices in power systems used to improve power factor, reduce reactive power loss, and improve power quality. Their core function is to control the switching of capacitor banks or other reactive power compensation devices by real-time detection of power factor, voltage, current, and other parameters of the power grid, thereby improving the power factor of the power grid, reducing line losses, stabilizing the grid voltage, and ensuring the economical and safe operation of the power system. Electromagnetic interference can affect the safety and stability of reactive power compensation controllers during operation. Therefore, an electromagnetic interference-resistant shielding shell is needed to protect the reactive power compensation controller. For example, Chinese patent discloses an electromagnetic interference-resistant shielding shell (authorization announcement number CN215774102U). This patented technology solves the problem that existing electromagnetic interference-resistant shielding shells are inconvenient to quickly disassemble and install when repairing electrical components. However, existing publicly available electromagnetic interference shielding enclosures still have some shortcomings in practical applications that need improvement, such as: It relies entirely on the metal cover and conductive foam layer to resist electromagnetic interference, but the static electricity or current passing through the shell cannot be discharged in time, causing electromagnetic interference to the reactive power compensation controller. The effect of resisting electromagnetic interference is poor, and the protection of the reactive power compensation controller is low. It only resists electromagnetic interference to the upper shell, and electromagnetic interference will be transmitted to the shell through the bottom plate, which is not conducive to the completeness of resisting electromagnetic interference. The wiring and housing are sealed by a sealing structure, but this provides no protection against electromagnetic interference, and the sealing structure requires screws for fixation, resulting in low ease of installation. Therefore, those skilled in the art have provided a shielded housing for a reactive power compensation controller that resists electromagnetic interference to solve the problems mentioned in the background art. Utility Model Content

[0003] The purpose of this invention is to provide a shielded housing for a reactive power compensation controller that resists electromagnetic interference, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A shielded housing for a reactive power compensation controller resistant to electromagnetic interference includes: a supporting member and a shielding member, wherein the shielding member is located on the upper side of the supporting member, and inlet and outlet line members are installed on both the front and rear sides of the shielding member, and a grounding member is installed on one side of the supporting member; The supporting component includes an insulating plate, a first metal shell is provided on the outer side of the insulating plate, a sealing ring is provided on the upper side of the insulating plate, and a second slot is provided on one side of the first metal shell. The shielding component includes a second metal shell, an inner conductive foam layer, an inner insulating layer, disassembly ports on the front and rear sides of the second metal shell, and fixing screws at all four ends of the second metal shell.

[0005] As a further embodiment of this utility model: the inlet / outlet component includes a tube, a limiting plate is provided on the front side of the tube, a rubber support piece is provided on the front side of the limiting plate, and a retaining plate is provided on both sides of the tube.

[0006] As a further embodiment of this utility model: the insertion tube slides inside the disassembly port, a first slot is provided on the inner side of the disassembly port, the rear end of the clamping plate is located inside the first slot, the insertion tube is fixed inside the disassembly port by the clamping plate, and the limiting plate is located outside the second metal shell.

[0007] As a further embodiment of this utility model: the grounding component includes a positioning frame, one end of which is provided with a grounding cable, one end of which is provided with a grounding nail, and the other end of which is provided with a hook. Mounting plates are provided on both sides of the positioning frame, and a guide rod is slidably mounted inside the mounting plate. A pressure plate is provided on one side of the guide rod, and a spring is mounted on the pressure plate. The free end of the spring is mounted on the mounting plate, and a limit block is provided on the other side of the guide rod.

[0008] As a further improvement of this utility model: the hook is located on the inner side of the second slot, and the pressure plate is fixed to the outer side of the second metal shell by a guide rod.

[0009] As a further embodiment of this utility model: the lower end of the fixing screw is located inside the first metal shell, the second metal shell is fixed to the first metal shell by the fixing screw, and the outer side of the sealing ring slides on the inner side of the inner insulation layer.

[0010] This utility model provides a shielded housing for a reactive power compensation controller that resists electromagnetic interference, and has the following advantages compared with the prior art: 1. This design provides a shielded enclosure for a reactive power compensation controller that resists electromagnetic interference. The controller is encased in a first metal shell and a second metal shell, which improves the completeness of electromagnetic interference resistance. The grounding component promptly draws out static electricity or current passing through the outer side of the load-bearing component and the shielding component, reducing electromagnetic interference to the reactive power compensation controller and improving the electromagnetic interference resistance effect. Furthermore, the grounding component can be selectively installed and can be quickly disassembled and installed, improving the flexibility of use.

[0011] 2. This design provides a shielded housing for a reactive power compensation controller that resists electromagnetic interference. The housing seals the connection between the disassembly port and the incoming / outgoing lines through the incoming / outgoing line components, while also resisting electromagnetic interference, further improving the completeness of electromagnetic interference resistance. The disassembly and assembly of the incoming / outgoing line components are completed through a clamping plate, improving the ease of installation. The incoming / outgoing lines are supported and sealed by rubber support plates, improving the stability of the incoming / outgoing lines. Attached Figure Description

[0012] Figure 1 A schematic diagram of the shielding housing for a reactive power compensation controller that resists electromagnetic interference; Figure 2 This is a schematic diagram of the load-bearing component in the shielding shell of a reactive power compensation controller that is resistant to electromagnetic interference. Figure 3 This is a partial cross-sectional view of the shielding component in the shielded housing of a reactive power compensation controller that is resistant to electromagnetic interference. Figure 4 This is a schematic diagram of the incoming and outgoing line components in the shielded housing of a reactive power compensation controller that is resistant to electromagnetic interference. Figure 5 This is a schematic diagram of the grounding component in the shielding shell of a reactive power compensation controller that is resistant to electromagnetic interference.

[0013] In the diagram: 1. Bearing component; 2. Shielding component; 3. Incoming / outgoing cable component; 4. Grounding component; 5. Insulating plate; 6. First metal shell; 7. Sealing ring; 8. Second slot; 9. Second metal shell; 10. Conductive foam layer; 11. Inner insulation layer; 12. Disassembly / assembly port; 13. Fixing screw; 14. Insert tube; 15. Limiting plate; 16. Rubber support piece; 17. Clamping plate; 18. Positioning frame; 19. Grounding cable; 20. Ground nail; 21. Hook; 22. Mounting plate; 23. Guide rod; 24. Pressure plate; 25. Limiting block; 26. Spring. Detailed Implementation

[0014] Please see Figures 1-5In this embodiment of the present invention, a shielding shell for a reactive power compensation controller resistant to electromagnetic interference includes: a supporting member 1 and a shielding member 2. The shielding member 2 is located on the upper side of the supporting member 1. Inlet and outlet wire components 3 are installed on both the front and rear sides of the shielding member 2. A grounding member 4 is installed on one side of the supporting member 1. The supporting member 1 includes an insulating plate 5. A first metal shell 6 is provided on the outer side of the insulating plate 5. A sealing ring 7 is provided on the upper side of the insulating plate 5. A second slot 8 is opened on one side of the first metal shell 6. The shielding member 2 includes... The second metal shell 9 has a conductive foam layer 10 on its inner side, and an inner insulating layer 11 on the inner side of the conductive foam layer 10. Disassembly ports 12 are provided on both the front and rear sides of the second metal shell 9. Fixing screws 13 are provided at all four ends of the second metal shell 9, with the lower end of the fixing screws 13 located inside the first metal shell 6. The second metal shell 9 is fixed to the first metal shell 6 by the fixing screws 13. The outer side of the sealing ring 7 slides within the inner side of the inner insulating layer 11. First, the reactive power compensation control... The electronic components of the device are fixed to the upper side of the insulating plate 5. The input and output lines of the reactive power compensation controller are respectively inserted into the input and output line components 3 at both ends of the shielding component 2. The input and output lines are connected to the reactive power compensation controller. The shielding component 2 covers the upper side of the bearing component 1. The sealing ring 7 is inserted into the inner side of the inner insulating layer 11. The fixing screw 13 passes through the first metal shell 6 and completes the fixing, thus completing the fixing of the bearing component 1 and the shielding component 2. The input and output line components 3 slide into the interior of the disassembly port 12, thus completing the installation of the input and output line components 3 and the shielding component 2. The input and output line components 3 support the input and output lines. If it is necessary to connect the grounding component 4, the grounding component 4 is inserted into the interior of the second slot 8 and inserted into the ground. Then, it can be used. The second metal shell 9 and the first metal shell 6 isolate electromagnetic interference. The conductive foam layer 10 improves the isolation effect of the second metal shell 9. The input and output line components 3 seal the connection between the input and output lines and the shielding component 2 to prevent electromagnetic interference. The static electricity and current on the bearing component 1 and the shielding component 2 are introduced into the ground through the grounding component 4, further reducing the electromagnetic interference to the bearing component 1 and the shielding component 2.

[0015] exist Figure 1 , 3In section 4: The inlet / outlet component 3 includes a tube 14. A limiting plate 15 is provided on the front side of the tube 14, and a rubber support piece 16 is provided on the front side of the limiting plate 15. A retaining plate 17 is provided on both sides of the tube 14. The tube 14 slides inside the disassembly / assembly port 12. A first retaining groove is provided on the inner side of the disassembly / assembly port 12. The rear end of the retaining plate 17 is located inside the first retaining groove. The tube 14 is fixed inside the disassembly / assembly port 12 by the retaining plate 17. The limiting plate 15 is located outside the second metal shell 9. The tube 14 slides into the disassembly / assembly port 12, and the retaining plate 17 is engaged inside the first retaining groove. The limiting plate 15 limits the tube 14, completing the installation of the inlet / outlet component 3 and the shielding component 2. The rubber support piece 16 supports the inlet / outlet. Both the tube 14 and the limiting plate 15 are made of metal, and the rubber support piece 16 is made of conductive rubber, which can prevent electromagnetic interference at the disassembly / assembly port 12.

[0016] exist Figure 1 , 2 In section 5: the grounding component 4 includes a positioning frame 18, one end of which is provided with a grounding cable 19, and one end of which is provided with a grounding nail 20. The other end of the positioning frame 18 is provided with a hook 21. Mounting plates 22 are provided on both sides of the positioning frame 18. A guide rod 23 is slidably installed inside the mounting plate 22. A pressure plate 24 is provided on one side of the guide rod 23, and a spring 26 is installed on the pressure plate 24. The free end of the spring 26 is installed on the mounting plate 22. A limit block 25 is provided on the other side of the guide rod 23. The rebound force of the spring 26 is 5N. The hook 21 is located at the second locking position. At the inner side of the slot 8, the pressure plate 24 is fixed to the outer side of the second metal shell 9 by the guide rod 23. If the grounding component 4 needs to be connected, hold the positioning frame 18, insert the hook 21 into the inside of the second slot 8, the spring 26 extends and retracts, the guide rod 23 slides inside the mounting plate 22, the pressure plate 24 presses against the outer side of the first metal shell 6 to position the positioning frame 18, the ground nail 20 is inserted into the ground, and the static electricity and current on the bearing component 1 and the shielding component 2 are introduced into the ground through the positioning frame 18, the grounding cable 19 and the ground nail 20, further reducing the electromagnetic interference to the bearing component 1 and the shielding component 2.

[0017] The working principle of this utility model is as follows: First, the electronic components of the reactive power compensation controller are fixed to the upper side of the insulating plate 5. The input and output lines of the reactive power compensation controller are respectively inserted into the input and output line components 3 at both ends of the shielding component 2. The input and output lines are connected to the reactive power compensation controller. The shielding component 2 covers the upper side of the bearing component 1. The sealing ring 7 is inserted into the inner side of the inner insulating layer 11. The fixing screw 13 passes through the first metal shell 6 and completes the fixing, thus completing the fixing of the bearing component 1 and the shielding component 2. The insertion tube 14 slides into the disassembly port 12. The clamping plate 17 is inserted into the first clamping slot. The limiting plate 15 limits the insertion tube 14, thus completing the installation of the input and output line components 3 and the shielding component 2. The rubber support plate 16 supports the input and output lines. If grounding is required, the connection can be made. When component 4 is in use, the hand-held positioning frame 18 is held, the hook 21 is inserted into the inside of the second slot 8, the spring 26 extends and retracts, the guide rod 23 slides inside the mounting plate 22, the pressure plate 24 presses against the outside of the first metal shell 6 to position the positioning frame 18, the ground nail 20 is inserted into the ground, and then it can be used. The second metal shell 9 and the first metal shell 6 isolate electromagnetic interference. The conductive foam layer 10 improves the isolation effect of the second metal shell 9. The inlet and outlet component 3 seals the connection between the inlet and outlet wires and the shielding component 2 to prevent electromagnetic interference. The static electricity and current on the bearing component 1 and the shielding component 2 are introduced into the ground through the positioning frame 18, the grounding cable 19 and the ground nail 20 to further reduce the electromagnetic interference to the bearing component 1 and the shielding component 2.

[0018] 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 shielding housing for a reactive power compensation controller that resists electromagnetic interference, comprising: The bearing member (1) and the shielding member (2) are characterized in that the shielding member (2) is located on the upper side of the bearing member (1), and the front and rear sides of the shielding member (2) are equipped with inlet and outlet line members (3), and the bearing member (1) is equipped with a grounding member (4) on one side. The supporting member (1) includes an insulating plate (5), a first metal shell (6) is provided on the outer side of the insulating plate (5), a sealing ring (7) is provided on the upper side of the insulating plate (5), and a second slot (8) is provided on one side of the first metal shell (6). The shielding component (2) includes a second metal shell (9), a conductive foam layer (10) is provided on the inner side of the second metal shell (9), an inner insulating layer (11) is provided on the inner side of the conductive foam layer (10), disassembly and assembly ports (12) are provided on the front and rear sides of the second metal shell (9), and fixing screws (13) are provided at the four ends of the second metal shell (9).

2. The electromagnetic interference-resistant reactive power compensation controller shielding housing according to claim 1, characterized in that, The inlet / outlet component (3) includes a tube (14), a limiting plate (15) is provided on the front side of the tube (14), a rubber support plate (16) is provided on the front side of the limiting plate (15), and a clamping plate (17) is provided on both sides of the tube (14).

3. The electromagnetic interference-resistant reactive power compensation controller shielding housing according to claim 2, characterized in that, The insertion tube (14) slides inside the disassembly port (12). A first slot is provided on the inner side of the disassembly port (12). The rear end of the card plate (17) is located inside the first slot. The insertion tube (14) is fixed inside the disassembly port (12) by the card plate (17). The limiting plate (15) is located outside the second metal shell (9).

4. The electromagnetic interference-resistant reactive power compensation controller shielding housing according to claim 1, characterized in that, The grounding component (4) includes a positioning frame (18), one end of which is provided with a grounding cable (19), one end of which is provided with a grounding nail (20), and the other end of which is provided with a hook (21). Mounting plates (22) are provided on both sides of the positioning frame (18). A guide rod (23) is slidably installed inside the mounting plate (22). A pressure plate (24) is provided on one side of the guide rod (23), and a spring (26) is installed on the pressure plate (24). The free end of the spring (26) is installed on the mounting plate (22), and a limit block (25) is provided on the other side of the guide rod (23).

5. The electromagnetic interference-resistant reactive power compensation controller shielding housing according to claim 4, characterized in that, The hook (21) is located inside the second slot (8), and the pressure plate (24) is fixed to the outside of the second metal shell (9) by the guide rod (23).

6. The electromagnetic interference-resistant reactive power compensation controller shielding housing according to claim 1, characterized in that, The lower end of the fixing screw (13) is located inside the first metal shell (6), and the second metal shell (9) is fixed to the first metal shell (6) by the fixing screw (13). The outer side of the sealing ring (7) slides on the inner side of the inner insulation layer (11).

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