High-voltage connector plug with shielding structure

By introducing a shielding structure into the high-voltage connector plug, the problem of traditional high-voltage connectors being susceptible to electromagnetic interference is solved, achieving stable signal transmission and reliable equipment operation, while also facilitating maintenance and reducing costs.

CN224177686UActive Publication Date: 2026-04-28GUANGDONG CHUANGHUICHENG TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG CHUANGHUICHENG TECHNOLOGY CO LTD
Filing Date
2025-05-29
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Traditional high-voltage connectors lack shielding structures, making them susceptible to external electromagnetic interference, which can lead to signal transmission distortion and attenuation, affecting the stability of equipment operation.

Method used

A high-voltage connector plug with a shielding structure was designed, including a shielding cover, a shielding sheet, and a limiting part. A stable connection is achieved through components such as clips, parts, and sliding blocks to form a complete electromagnetic shielding structure, ensuring the integrity and stability of signal transmission.

Benefits of technology

It effectively isolates external electromagnetic interference, prevents signal distortion and attenuation, improves equipment operation stability, and supports modular design for easy maintenance and reduced maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a high-voltage connector plug with a shielding structure. The high-voltage connector plug comprises a plug shell. One end of the plug shell is provided with an end cover, the end cover is arranged in the plug shell in a penetrating manner, two sides of the end cover are provided with clamping grooves, the plug shell is provided with clamping pieces corresponding to the clamping grooves, and the clamping pieces are detachably arranged in the clamping grooves; a shielding cover is arranged in the plug shell in a penetrating mode, one end of the shielding cover is clamped in an end cover, a wiring part is further arranged at the end, away from the shielding cover, of the end cover, and two sets of connecting wires are arranged in the wiring part in a penetrating mode. Two groups of transmission rods are also arranged in the shielding cover in a replaceable manner, terminals are also arranged in the two groups of transmission rods in a penetrating manner, and the two groups of terminals are respectively connected with the two groups of connecting wires through the two groups of transmission rods; and a shielding sheet is detachably arranged at one end, far away from the end cover, of the shielding case. The shielding cover and the shielding sheet form a closed electromagnetic protection layer, electromagnetic radiation generated in the high-voltage connector is prevented from leaking, external electromagnetic interference is prevented from invading, stable signal transmission is ensured, and the operation reliability of equipment is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of connector plug technology, and more specifically, it relates to a high-voltage connector plug with a shielding structure. Background Technology

[0002] Connectors play a crucial role in transmitting electrical energy in electrical systems. With the development of new energy technologies leading to higher voltage levels in equipment, traditional connectors can no longer meet the demands. High-voltage connectors, however, are suitable for high-voltage scenarios, capable of transmitting high-voltage electrical energy. They possess insulation, sealing, and mechanical strength to ensure system reliability and safety, support modular design for easy maintenance and upgrades, and meet the power transmission requirements under high-voltage environments. However, traditional high-voltage connectors lack shielding structures, making them susceptible to external electromagnetic interference during use. This can lead to signal distortion and attenuation during transmission, ultimately affecting the stability of equipment operation. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a high-voltage connector plug with a shielding structure. This solves the technical problem that traditional high-voltage connector plugs, lacking a shielding structure, are susceptible to external electromagnetic interference during use, causing signal transmission distortion and attenuation, which in turn affects the stability of equipment operation.

[0004] The purpose and effect of this utility model of a high-voltage connector plug with a shielding structure are achieved by the following specific technical means:

[0005] A high-voltage connector plug with a shielding structure includes a hollow plug housing. One end of the plug housing has an end cap that passes through the plug housing. The end cap has clips and slots on both sides. Corresponding clips and slots are clips and fittings on the plug housing, and these clips and fittings are detachably disposed within the clips and slots. A shielding cover passes through the plug housing, with one end of the shielding cover clipped within the end cap. A wiring portion is provided at the end of the end cap away from the shielding cover, and two sets of connecting wires pass through the wiring portion. Two sets of transmission rods are replaceably disposed within the shielding cover, and terminals pass through the two sets of transmission rods. The two sets of terminals are respectively connected to the two sets of connecting wires via the two sets of transmission rods. A shielding sheet is detachably disposed at the end of the shielding cover away from the end cap.

[0006] The above technical solution further includes that multiple sets of limiting parts are evenly arranged inside the plug housing, and the inner side of each set of limiting parts is in contact with the outer side of the shielding cover; mounting grooves are also provided on the two opposite inner sides of the plug housing, and the shielding cover is also provided with sliding blocks corresponding to the two sets of mounting grooves, and the two sets of sliding blocks are slidably arranged in the two sets of mounting grooves respectively.

[0007] The above technical solution further includes that a mounting platform is provided on one side of the plug housing, a locking plate is slidably provided in the mounting platform, a first locking block and a second locking block are respectively provided on both sides and the bottom of the locking plate, and multiple sets of limiting blocks are provided on the two opposing inner sides of the mounting platform, with the two sets of first locking blocks respectively contacting two sets of opposing limiting blocks.

[0008] The above technical solution further includes that the locking plate is made of plastic, and that two sets of force-applying components are respectively arranged at the top of the locking plate.

[0009] The above technical solution further includes that the top of the shielding cover is provided with an installation groove, the shielding sheet is disposed in the installation groove, and multiple sets of fixing members are evenly arranged in the installation groove, the multiple sets of fixing members passing through the shielding sheet and contacting the top of the shielding sheet.

[0010] The above technical solution further includes that the shielding sheet has two sets of positioning insertion holes corresponding to the two sets of transmission rods.

[0011] The above technical solution further includes that the shielding cover is provided with two sets of assembly slots, and the two sets of transmission rods are respectively detachably arranged in the assembly slots.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The shielding cover and shielding sheet combine to form a complete shielding structure. A mounting groove is provided at the end of the shielding cover furthest from the end cap. The shielding sheet is installed within the mounting groove, and multiple sets of fasteners are evenly distributed within the groove. These fasteners pass through the shielding sheet and contact its top tip, securely fixing the shielding sheet to the shielding cover. Two sets of positioning insertion holes are provided on the shielding sheet corresponding to the two sets of transmission rods to ensure accurate installation of the shielding sheet. This allows the shielding structure to effectively isolate external electromagnetic interference and prevent signal distortion and attenuation during transmission.

[0014] 2. Multiple sets of limiting parts are evenly arranged inside the plug housing. The inner side of the limiting parts fits tightly against the outer side of the shielding cover, limiting and fixing the shielding cover from multiple directions. Simultaneously, mounting grooves are formed on two opposite inner sides of the plug housing, and corresponding sliding blocks are provided on the shielding cover. These sliding blocks can slide within the mounting grooves, achieving precise installation and positioning of the shielding cover and preventing it from shifting or shaking within the plug housing. An end cap is inserted through one end of the plug housing. The end cap has clips and slots on both sides, and corresponding clips and components are provided on the plug housing. These clips and components can be detachably installed within the clips and slots, firmly connecting the end cap to the plug housing. One end of the shielding cover is also secured within the end cap, further enhancing the overall structural stability. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the assembled structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the assembled present invention.

[0017] Figure 3 This is an exploded structural diagram of the present invention.

[0018] Figure 4 yes Figure 3 A magnified structural diagram of region a in the middle.

[0019] Figure 5 This is a schematic diagram of the structure of the plug shell of this utility model.

[0020] Figure 6 This is a schematic diagram of the locking plate of this utility model.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0022] 1. Plug housing; 2. End cap; 3. Shielding cover; 4. Mounting platform; 5. Locking plate; 101. Clip and slot; 102. Clip and component; 103. Wiring part; 104. Connecting wire; 105. Transmission rod; 106. Terminal; 107. Shielding plate; 201. Limiting part; 202. Mounting slide; 203. Sliding block; 301. First locking block; 302. Second locking block; 303. Limiting block; 401. Force-applying component; 501. Fixing component; 601. Positioning insertion hole; 701. Assembly slot. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model.

[0024] Example:

[0025] like Figures 1 to 6As shown, this utility model provides a high-voltage connector plug with a shielding structure, including a hollow plug shell 1, an end cap 2 at one end of the plug shell 1, the end cap 2 passing through the plug shell 1, and clips and slots 101 on both sides of the end cap 2. Clips and fittings 102 are provided on the corresponding clips and slots 101 of the plug shell 1, and the clips and fittings 102 are detachably disposed within the clips and slots 101. A shielding cover 3 passes through the plug shell 1, and one end of the shielding cover 3 is clipped into the end cap 2. A wiring portion 103 is also provided at the end of the end cap 2 away from the shielding cover 3, and two sets of connecting wires 104 pass through the wiring portion 103. Two sets of transmission rods 105 are replaceably provided inside the shielding cover 3, and terminals 106 pass through the two sets of transmission rods 105. The two sets of terminals 106 are respectively connected to the two sets of connecting wires 104 through the two sets of transmission rods 105. A shielding sheet 107 is detachably provided at the end of the shielding cover 3 away from the end cap 2. The plug housing 1 and the end cap 2 are detachably connected by a clip and slot 101 and a clip and component 102. During assembly, the clip and component 102 can be inserted into the clip and slot 101 by pressing to fix the two. During disassembly, the clip and component 102 can be separated from the clip and slot 101. This facilitates the quick assembly and maintenance of the device. At the same time, the clip and structure restricts the displacement of the end cap 2 in the plug housing 1, thereby ensuring the stability of the structure.

[0026] The shielding cover 3 is directly installed inside the end cover 2. The contact area between the shielding cover 3 and the end cover 2 forms a conductive connection, creating a continuous conductive path. This ensures that the electromagnetic shielding layer is uninterrupted and guarantees the integrity of the electromagnetic shielding. External electromagnetic signals are reflected and absorbed by the metal layer of the shielding cover 3, while internal electromagnetic signals are confined by the shielding cover 3, effectively blocking internal and external electromagnetic interference. The wiring part 103 is integrated on the end cover 2. The connecting wire 104 passes directly into the wiring part 103 and connects to the end of the transmission rod 105, reducing wire bends and crossings, simplifying the internal wiring structure, shortening the current transmission path, reducing contact resistance, and improving conductivity.

[0027] The replaceability of the transmission rod 105 allows it to be installed independently within the shielding cover 3. When the transmission rod 105 experiences wear, oxidation, or other problems, it can be disassembled and replaced separately without disassembling other components or replacing the entire connector plug, thus reducing maintenance and time costs. The terminal 106 passes through the inside of the transmission rod 105. One end of the terminal 106 is in close contact with the inner wall of the transmission rod 105, and the other end is crimped or welded to the end of the connecting wire 104, forming a stable electrical connection. Current is transmitted through the terminal 106, the transmission rod 105, and the connecting wire 104, with a fixed path and reliable contact, ensuring signal transmission quality. The shielding plate 107 is detachably mounted at the end of the shielding cover 3. During installation, the shielding plate 107 covers the opening of the shielding cover 3 and connects to the shielding cover 3, sealing off the electromagnetic leakage path. High-frequency electromagnetic signals are attenuated by multiple reflections within the enclosed space formed by the shielding cover 3 and the shielding plate 107, enhancing the ability to suppress high-frequency interference.

[0028] The entire system is installed in a modular manner, with each component manufactured independently. During installation, they are assembled in sequence, which simplifies the assembly process, shortens the installation time, and allows for direct disassembly and replacement of damaged individual components without affecting other components. This facilitates maintenance and repair. At the same time, the modular structure promotes standardized production, improves production efficiency, and reduces costs.

[0029] like Figure 3 , Figure 5 and Figure 6 As shown, multiple sets of limiting parts 201 are evenly arranged inside the plug housing 1, and the inner surfaces of the multiple sets of limiting parts 201 are in contact with the outer surfaces of the shielding cover 3. Mounting grooves 202 are also provided on two opposite inner surfaces of the plug housing 1. The shielding cover 3 is also provided with sliding blocks 203 corresponding to the two sets of mounting grooves 202, and the two sets of sliding blocks 203 are slidably disposed within the two sets of mounting grooves 202. The inner surfaces of the multiple sets of limiting parts 201 inside the plug housing 1 contact the outer surfaces of the shielding cover 3, positioning the shielding cover 3 from multiple directions and preventing radial displacement within the plug housing 1. The mounting grooves 202 on the two opposite inner surfaces of the plug housing 1 allow the sliding blocks 203 of the shielding cover 3 to slide within the grooves, enabling axial installation and removal of the shielding cover 3 within the plug housing 1. Simultaneously, the limiting effect of the mounting grooves 202 on the sliding blocks 203 prevents circumferential rotation of the shielding cover 3 within the plug housing 1, ensuring accurate installation of the shielding cover 3 and maintaining the integrity and stability of the shielding structure.

[0030] A mounting platform 4 is provided on one side of the plug housing 1. A locking plate 5 is slidably provided inside the mounting platform 4. A first locking block 301 and a second locking block 302 are respectively provided on the two sides and the bottom of the locking plate 5. Multiple sets of limiting blocks 303 are provided on the two opposite inner sides of the mounting platform 4. The two sets of first locking blocks 301 contact two sets of opposite limiting blocks 303 respectively. The locking plate 5 is made of plastic, and two sets of force-applying components 401 are also provided on the top of the locking plate 5. The second locking block 302 at the bottom of the locking plate 5 cooperates with the corresponding structure of the socket. When the plug is inserted into the socket, it pushes the locking plate 5 to slide in the mounting platform 4. The second locking block 302 is engaged in the locking groove or protrusion structure of the socket. At the same time, the first locking block 301 contacts and limits the limit block 303 in the mounting platform 4, so that the plug and socket form a mutual self-locking through the locking structure of the second locking block 302 and the socket, limiting the relative displacement of the plug and socket in the axial and radial directions, ensuring a stable connection, and preventing the plug and socket from separating due to external force or vibration. By squeezing the force application member 401 inward with a finger, the first locking blocks 301 on both sides of the locking plate 5 can contact and lock with the limit block 303, thereby unlocking the second locking block 302, so that the plug and socket can be removed. This not only ensures the stability and reliability of power transmission, but also increases the convenience of device assembly.

[0031] like Figure 1 , Figure 3 and Figure 4 As shown, the top of the shielding cover 3 has a mounting groove, and the shielding plate 107 is placed in the mounting groove. Multiple sets of fixing members 501 are also evenly arranged in the mounting groove, passing through the shielding plate 107 and contacting its top. The shielding plate 107 also has two sets of positioning insertion holes 601 corresponding to the two sets of transmission rods 105. The mounting groove at the top of the shielding cover 3, into which the shielding plate 107 is embedded, matches the shape and size of the mounting groove to limit the lateral displacement of the shielding plate 107 at the top of the shielding cover 3, ensuring that the shielding plate 107 accurately covers the opening of the shielding cover 3, forming a complete shielding cavity. Multiple sets of fixing members 501 are evenly arranged in the mounting groove, passing through the shielding plate 107 and contacting its top, pressing and fixing the shielding plate 107 in the mounting groove to prevent it from falling off due to vibration or external force, thus ensuring the sealing and electromagnetic shielding performance of the shielding structure.

[0032] Meanwhile, the shielding plate 107 has two sets of positioning insertion holes 601, the positions of which correspond to the positions of the two sets of transmission rods 105 inside the shielding cover 3. The position and size of the positioning insertion holes 601 are adapted to the corresponding structure of the socket. When the plug and socket are connected, the positioning post or protrusion of the socket can be inserted into the positioning insertion hole 601 to provide guidance for the connection between the plug and the socket, ensuring that the transmission rod 105 inside the plug is accurately aligned with the conductive parts inside the socket, and avoiding poor contact due to misalignment.

[0033] like Figure 2 As shown, the shielding cover 3 has two sets of assembly slots 701, and two sets of transmission rods 105 are detachably installed in the assembly slots 701. The two sets of assembly slots 701 in the shielding cover 3 correspond to the two sets of transmission rods 105 respectively. The transmission rods 105 are detachably installed in the assembly slots 701. When one set of transmission rods 105 fails, it can be removed and replaced individually without disassembling the other set of transmission rods 105 or the entire component, reducing maintenance workload. Simultaneously, the shape and size of the assembly slots 701 match the transmission rods 105. When the transmission rods 105 are installed in the assembly slots 701, their positions are precisely defined, ensuring that the connection points between the transmission rods 105 and the terminals 106 and connecting wires 104 remain fixed, avoiding poor contact due to installation deviations, and ensuring the stability of the power transmission path.

[0034] The above description is merely an embodiment of this utility model and is not intended to limit it. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-voltage connector plug with a shielding structure, comprising a plug housing (1) with a hollow structure, characterized in that: One end of the plug housing (1) is provided with an end cap (2), which is inserted into the plug housing (1). The end cap (2) has clips and slots (101) on both sides. A clip and component (102) is provided on the plug housing (1) corresponding to the clips and slots (101). The clip and component (102) is detachably disposed within the clips and slots (101). A shielding cover (3) is inserted into the plug housing (1), and one end of the shielding cover (3) is clipped into the end cap (2). The end cap (2) is located away from... One end of the shield (3) is also provided with a wiring part (103), and two sets of connecting wires (104) are passed through the wiring part (103); two sets of transmission rods (105) can also be replaced inside the shield (3), and terminals (106) are also passed through the two sets of transmission rods (105), and the two sets of terminals (106) are respectively connected to the two sets of connecting wires (104) through the two sets of transmission rods (105); a shielding sheet (107) can also be detachably provided at the end of the shield (3) away from the end cap (2).

2. A high-voltage connector plug with a shielding structure according to claim 1, characterized in that: Multiple sets of limiting parts (201) are evenly arranged inside the plug housing (1), and the inner side of each set of limiting parts (201) is in contact with the outer side of the shield (3). The plug housing (1) is also provided with mounting grooves (202) on two opposite inner sides. The shield (3) is also provided with sliding blocks (203) corresponding to the two sets of mounting grooves (202). The two sets of sliding blocks (203) are slidably arranged in the two sets of mounting grooves (202).

3. A high-voltage connector plug with a shielding structure according to claim 2, characterized in that: A mounting platform (4) is provided on one side of the plug housing (1). A locking plate (5) is slidably provided inside the mounting platform (4). A first locking block (301) and a second locking block (302) are provided on both sides and the bottom of the locking plate (5). Multiple sets of limiting blocks (303) are provided on the two opposing inner surfaces of the mounting platform (4). The two sets of first locking blocks (301) respectively contact the two sets of opposing limiting blocks (303).

4. A high-voltage connector plug with a shielding structure according to claim 3, characterized in that: The locking plate (5) is made of plastic, and two sets of force-applying components (401) are provided opposite to each other at the top of the locking plate (5).

5. A high-voltage connector plug with a shielding structure according to claim 1, characterized in that: The top of the shield (3) is provided with an installation groove, the shield (107) is disposed in the installation groove, and multiple sets of fasteners (501) are evenly disposed in the installation groove. The multiple sets of fasteners (501) pass through the shield (107) and contact the top of the shield (107).

6. A high-voltage connector plug with a shielding structure according to claim 5, characterized in that: The shielding plate (107) is also provided with two sets of positioning insertion holes (601) corresponding to the two sets of transmission rods (105).

7. A high-voltage connector plug with a shielding structure according to claim 1, characterized in that: The shield (3) is provided with two sets of assembly slots (701), and the two sets of transmission rods (105) are respectively detachably arranged in the assembly slots (701).