High-voltage ground shielding structure

Abstract

The utility model discloses a high -tension ground shielding structure, include: connecting plate, the outer wall welding of connecting plate has fixed structure, the fixed structure outside is equipped with shielding structure, the inner wall fixed connection of fixed structure has ground structure, the utility model relates to high -tension ground shielding technical field, this fixed structure and shielding structure, through the clamping force that screw fastening formed with the clamping plate of installation board, cooperate the close adhesion of buffer pad, guarantee the conductive continuity of wire and clamping part, can avoid the mechanical damage of wire because of rigid clamping, and the cooperation of sealing washer and sealing groove forms double -walled sealing, effectively blocks the invasion of water vapor, dust and contacts area, prevents the contact of oxidation or corrosion and causes the poor, through the close connection of fixed block and fixed groove's interlocking structure with the guide plate, the positioning effect of combination card slot to cable, form the shielding space of complete closure, avoid the electromagnetic interference of weak current equipment to outside.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage grounding shielding technology, specifically a high-voltage grounding shielding structure. Background Technology

[0002] In high-voltage power systems and large electrical equipment, high-voltage grounding shielding structures are core components for ensuring safe system operation and avoiding electromagnetic interference. However, the high-voltage grounding shielding structures currently available on the market still have some shortcomings in practical applications.

[0003] In existing grounding structures, the conductors and clamping components are mostly fastened with purely rigid bolts, lacking buffer protection design. Rigid clamping can easily cause mechanical damage to the surface of the conductor due to compression. Especially under the effects of long-term vibration or thermal expansion and contraction caused by changes in ambient temperature, the contact between the conductor and the clamping components is prone to loosening, resulting in increased contact resistance, obstructed fault current conduction, and inability to discharge current in a timely manner. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a high-voltage grounding shielding structure, which solves the problem that existing grounding structures often use purely rigid bolt fastening methods for conductors and clamping components, lacking buffer protection design.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A high-voltage grounding shielding structure includes: a connecting plate, a fixing structure welded to the outer wall of the connecting plate, a shielding structure sleeved on the outside of the fixing structure, and a grounding structure fixedly connected to the inner wall of the fixing structure; the fixing structure includes a guide plate, a fixing groove symmetrically formed on the outer wall of the guide plate, an mounting plate fixedly connected to the inner wall of the guide plate, a clamping plate provided on the outside of the mounting plate, a screw slidably connected to the inner wall of the clamping plate, buffer pads fixedly connected to the outer walls of both the mounting plate and the clamping plate, and sealing grooves formed on the inner walls of both the mounting plate and the clamping plate.

[0009] Preferably, the outer wall of the screw is threaded to the inner wall of the mounting plate, the outer wall of the buffer pad on the mounting plate and the clamping plate are in contact, the outer wall of the guide plate is welded to the outer wall of the connecting plate, and the clamping plate is brought closer to the mounting plate by tightening the screw until the buffer pads on the outer walls of the two are in close contact.

[0010] Preferably, the grounding structure includes a conductor, the outer wall of which is fitted with a sleeve, a sealing ring is fixedly connected to the outer wall of the sleeve, and a grounding copper plate is fixedly connected to the outer wall of the conductor.

[0011] Preferably, the inner walls of the mounting plate and clamp are in contact with the outer wall of the wire, the inner wall of the sealing groove is slidably connected to the outer wall of the sealing ring, and the buffer pad is in close contact with and clamps the wire. The buffer pad not only enhances the fit between the wire and the mounting plate and clamp, but also buffers the stress generated by vibration or thermal expansion and contraction, thus preventing the wire from being pinched.

[0012] Preferably, the shielding structure includes a shielding cover, the outer wall of which has a slot, and the outer wall of which has symmetrically formed sliding grooves. The inner wall of the sliding grooves is symmetrically fixedly connected to sliding rods, the outer wall of the sliding rods is slidably connected to a pressing plate, the outer wall of the pressing plate is fixedly connected to a fixing block, and the outer wall of the pressing plate is fixedly connected to a compression spring.

[0013] Preferably, the outer wall of the compression spring away from the press plate is fixedly connected to the inner wall of the slide groove, the outer wall of the press plate is slidably connected to the inner wall of the slide groove, the outer wall of the fixing block is slidably connected to the inner wall of the fixing groove, the inner wall of the slot is slidably connected to the outer wall of the wire sleeve, and the shielding cover is fixed to the guide plate. At this time, the shielding cover completely covers the fixing structure and the connection part between the wire and the fixing structure, forming a closed shielding space.

[0014] (III) Beneficial Effects

[0015] This utility model provides a high-voltage grounding shielding structure. It has the following beneficial effects:

[0016] (i) This fixed structure, through the mounting plate and clamping plate fastened with screws to form a clamping force, combined with the tight fit of the buffer pad, not only ensures the conductive continuity between the wire and the clamping component, but also absorbs the stress generated by vibration and thermal expansion and contraction through the buffer pad, avoiding mechanical damage to the wire caused by rigid clamping, and extending the service life of the grounding wire. At the same time, the cooperation between the sealing ring and the sealing groove forms a double seal, effectively preventing water vapor and dust from entering the contact area, preventing poor contact caused by oxidation or corrosion, and ensuring that fault currents such as leakage and overvoltage can be stably conducted to the grounding copper plate through the wire and conducted to the ground, thereby reducing the risk of the equipment casing becoming electrified from the root and ensuring the safety of personnel and equipment.

[0017] (II) The shielding structure achieves a tight connection with the guide plate through the interlocking structure of the fixing block and the fixing groove. Combined with the positioning function of the groove for the cable, a completely closed shielding space is formed. This can strictly limit the electric and magnetic fields conducted by the high-voltage equipment inside the shielding cover, avoiding electromagnetic interference to external weak electrical equipment. At the same time, the closed structure can effectively block the intrusion of external electromagnetic signals and ensure the current conduction stability of the grounding system itself. In addition, the indirect grounding design of the shielding cover and the connecting plate can promptly conduct the induced charge on the shielding layer to the ground, further eliminating the hidden danger of secondary electromagnetic interference and improving the overall electromagnetic compatibility performance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the grounding structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the fixing structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the shielding structure of this utility model;

[0022] Figure 5 This utility model Figure 4 A schematic diagram of the structure at point A.

[0023] In the diagram: 1. Connecting plate; 2. Fixing structure; 21. Guide plate; 22. Fixing groove; 23. Mounting plate; 24. Clamping plate; 25. Screw; 26. Buffer pad; 27. Sealing groove; 3. Shielding structure; 31. Shielding cover; 32. Slot; 33. Slide groove; 34. Slide rod; 35. Press plate; 36. Fixing block; 37. Compression spring; 4. Grounding structure; 41. Wire; 42. Wire sleeve; 43. Sealing ring; 44. Grounding copper plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 This utility model provides a technical solution: a high-voltage grounding shielding structure, comprising: a connecting plate 1, a fixing structure 2 welded to the outer wall of the connecting plate 1, a shielding structure 3 sleeved on the outside of the fixing structure 2, and a grounding structure 4 fixedly connected to the inner wall of the fixing structure 2; the fixing structure 2 includes a guide plate 21, a fixing groove 22 symmetrically opened on the outer wall of the guide plate 21, an mounting plate 23 fixedly connected to the inner wall of the guide plate 21, a clamping plate 24 provided on the outside of the mounting plate 23, a screw 25 slidably connected to the inner wall of the clamping plate 24, a buffer pad 26 fixedly connected to the outer walls of both the mounting plate 23 and the clamping plate 24, and a sealing groove 27 opened on the inner walls of both the mounting plate 23 and the clamping plate 24.

[0026] The outer wall of screw 25 is threaded to the inner wall of mounting plate 23. The outer walls of buffer pad 26 on mounting plate 23 and clamping plate 24 are in contact. The outer wall of guide plate 21 is welded to the outer wall of connecting plate 1. By tightening screw 25, clamping plate 24 is brought closer to mounting plate 23 until the buffer pad 26 on the outer walls of both are in close contact.

[0027] The grounding structure 4 includes a conductor 41, a wire sleeve 42 is fitted on the outer wall of the conductor 41, a sealing ring 43 is fixedly connected to the outer wall of the wire sleeve 42, and a grounding copper plate 44 is fixedly connected to the outer wall of the conductor 41.

[0028] The inner walls of the mounting plate 23 and the clamping plate 24 are in contact with the outer wall of the wire 41. The inner wall of the sealing groove 27 is slidably connected with the outer wall of the sealing ring 43. The buffer pad 26 is in close contact with and clamps the wire 41. The buffer pad 26 not only enhances the fit between the wire 41 and the mounting plate 23 and the clamping plate 24, but also buffers the stress generated by vibration or thermal expansion and contraction, thus preventing the wire 41 from being damaged.

[0029] The shielding structure 3 includes a shielding cover 31. The outer wall of the shielding cover 31 has a slot 32. The outer wall of the shielding cover 31 has symmetrically opened sliding grooves 33. The inner wall of the sliding grooves 33 is symmetrically fixedly connected to sliding rods 34. The outer wall of the sliding rods 34 is slidably connected to a pressing plate 35. The outer wall of the pressing plate 35 is fixedly connected to a fixing block 36. The outer wall of the pressing plate 35 is fixedly connected to a compression spring 37.

[0030] The outer wall of the compression spring 37 away from the pressing plate 35 is fixedly connected to the inner wall of the slide groove 33. The outer wall of the pressing plate 35 is slidably connected to the inner wall of the slide groove 33. The outer wall of the fixing block 36 is slidably connected to the inner wall of the fixing groove 22. The inner wall of the slot 32 is slidably connected to the outer wall of the wire sleeve 42. The shielding cover 31 is fixed to the guide plate 21. At this time, the shielding cover 31 completely covers the fixing structure 2 and the connection part of the wire 41 and the fixing structure 2, forming a closed shielding space.

[0031] When in use, the connecting plate 1 is the connection point for high-voltage electrical equipment. The core of the grounding structure 4 is to realize current conduction through the wire 41. During assembly, the wire 41 is placed between the mounting plate 23 and the clamping plate 24 of the fixing structure 2.

[0032] By tightening the screw 25, the clamp 24 is brought closer to the mounting plate 23 until the buffer pad 26 on the outer wall of both is in close contact and clamps the wire 41. The buffer pad 26 not only enhances the fit between the wire 41 and the mounting plate 23 and clamp 24, but also buffers the stress caused by vibration or thermal expansion and contraction, preventing the wire 41 from being pinched. At the same time, the sealing ring 43 on the outer wall of the wire sleeve 42 is embedded in the sealing groove 27 on the inner wall of the mounting plate 23 and clamp 24, forming a sealing structure by compression, preventing external moisture and dust from entering the contact area between the wire 41 and the clamping component, and ensuring the stability of grounding conductivity.

[0033] The shielding cover 31 of the shielding structure 3 is used to wrap the fixed structure 2 and part of the grounding structure 4 to achieve electromagnetic shielding. During installation, press the press plate 35. The press plate 35 slides along the slide groove 33 through the slide rod 34. The compression spring 37 is compressed, which drives the fixing block 36 to retract. Align the shielding cover 31 with the guide plate 21 so that the wire sleeve 42 is embedded in the slot 32 of the shielding cover 31. Then release the press plate 35. The compression spring 37 returns to its original position. Push the press plate 35 to drive the fixing block 36 to pop out. The outer wall of the fixing block 36 is inserted into the fixing groove 22 of the guide plate 21, thus completing the fixing of the shielding cover 31 and the guide plate 21. At this time, the shielding cover 31 completely covers the fixed structure 2 and the connection part of the wire 41 and the fixed structure 2, forming a closed shielding space.

[0034] When high-voltage equipment experiences leakage, induced charge, or overvoltage, the current is conducted through conductor 41 and then led to the ground via grounding copper plate 44 at the end of conductor 41. This releases the charge or discharges the fault current, preventing the equipment casing from becoming energized or overvoltage from damaging the equipment and ensuring the safety of personnel and equipment.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-voltage grounding shielding structure, characterized in that, include: A connecting plate (1) has a fixing structure (2) welded to its outer wall, a shielding structure (3) sleeved on the outside of the fixing structure (2), and a grounding structure (4) fixedly connected to the inner wall of the fixing structure (2). The fixing structure (2) includes a guide plate (21), the outer wall of the guide plate (21) is symmetrically provided with fixing grooves (22), the inner wall of the guide plate (21) is fixedly connected with an installation plate (23), the outer side of the installation plate (23) is provided with a clamping plate (24), the inner wall of the clamping plate (24) is slidably connected with screws (25), the outer walls of the installation plate (23) and the clamping plate (24) are both fixedly connected with buffer pads (26), and the inner walls of the installation plate (23) and the clamping plate (24) are both provided with sealing grooves (27).

2. The high-voltage grounding shielding structure according to claim 1, characterized in that: The outer wall of the screw (25) is threaded to the inner wall of the mounting plate (23), the outer wall of the buffer pad (26) on the mounting plate (23) and the clamping plate (24) is in contact, and the outer wall of the guide plate (21) is welded to the outer wall of the connecting plate (1).

3. The high-voltage grounding shielding structure according to claim 1, characterized in that: The grounding structure (4) includes a conductor (41), the outer wall of the conductor (41) is fitted with a wire sleeve (42), the outer wall of the wire sleeve (42) is fixedly connected with a sealing ring (43), and the outer wall of the conductor (41) is fixedly connected with a grounding copper plate (44).

4. The high-voltage grounding shielding structure according to claim 1, characterized in that: The inner walls of the mounting plate (23) and clamp (24) are in contact with the outer wall of the wire (41), and the inner wall of the sealing groove (27) is slidably connected to the outer wall of the sealing ring (43).

5. A high-voltage grounding shielding structure according to claim 1, characterized in that: The shielding structure (3) includes a shielding cover (31), the outer wall of the shielding cover (31) is provided with a slot (32), the outer wall of the shielding cover (31) is symmetrically provided with a sliding groove (33), the inner wall of the sliding groove (33) is symmetrically fixedly connected with a sliding rod (34), the outer wall of the sliding rod (34) is slidably connected with a pressing plate (35), the outer wall of the pressing plate (35) is fixedly connected with a fixing block (36), and the outer wall of the pressing plate (35) is fixedly connected with a compression spring (37).

6. A high-voltage grounding shielding structure according to claim 5, characterized in that: The outer wall of the compression spring (37) away from the button (35) is fixedly connected to the inner wall of the slide groove (33), the outer wall of the button (35) is slidably connected to the inner wall of the slide groove (33), the outer wall of the fixing block (36) is slidably connected to the inner wall of the fixing groove (22), and the inner wall of the card slot (32) is slidably connected to the outer wall of the wire sleeve (42).

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