Charging and discharging high-voltage line sealing plug

By designing a charging and discharging high-voltage circuit sealing plug comprising a sealing plug body and a magnetic shielding elastic member, the problem of electromagnetic fields affecting electrical performance in the prior art is solved, and effective electromagnetic shielding and sealing effects are achieved.

CN223378832UActive Publication Date: 2025-09-23ZHEJIANG JINGDONG RUBBER & PLASTIC TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422571605.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-24
Publication Date
2025-09-23
Estimated Expiration
2034-10-24

AI Technical Summary

Technical Problem

Existing sealing plugs for charging and discharging high-voltage circuits do not have an anti-magnetic function, resulting in the electromagnetic field generated during the charging and discharging process of the high-voltage circuit affecting the electrical performance of the system.

Method used

A charging and discharging high-voltage line sealing plug is designed, which includes a sealing plug body and a magnetic shielding elastic part. The sealing plug body consists of a sealing plug docking part, a sealing plug compression part and a sealing plug anti-magnetic part. A magnetic shielding elastic part is provided inside. The cross-section of the magnetic shielding unit is triangular, which can effectively shield the electromagnetic field, and the sealing plug compression part provides multi-layer compression and sealing functions.

Benefits of technology

It effectively shields the electromagnetic field generated during charging and discharging of high-voltage lines, prevents electromagnetic interference from affecting the electrical performance of the equipment, and improves the sealing performance and shielding effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223378832U_ABST
    Figure CN223378832U_ABST
Patent Text Reader

Abstract

The utility model relates to a charging and discharging high-voltage line sealing plug. The technical problem to be solved by the utility model is to provide the sealing plug for the charging and discharging high-voltage line. According to the technical scheme, the sealing plug comprises a sealing plug body and a magnetic shielding elastic piece, a sealing plug wiring hole is formed in the sealing plug body, the sealing plug body comprises a sealing plug butt joint part, a sealing plug compression part and a sealing plug antimagnetic part, a sealing plug clamping convex edge is arranged at the front end of the sealing plug butt joint part, and a sealing plug clamping convex edge is arranged at the rear end of the sealing plug clamping convex edge. Inner compression grooves are formed in the inner wall of the sealing plug compression part at intervals, and a sealing plug inner cavity and a sealing plug end blocking part are arranged in the sealing plug antimagnetic part. The magnetic shielding unit has the advantages that the magnetic shielding elastic piece can effectively shield an electromagnetic field generated during charging and discharging of a high-voltage line, the electrical performance of equipment is prevented from being affected by electromagnetic interference, the shielding layer contact hole and the elastic telescopic opening can ensure close contact between the cable shielding layer and the magnetic shielding unit, and the shielding effect is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to a sealing plug for a charging and discharging high-voltage circuit. Background Art

[0002] High-voltage charging and discharging line sealing plugs are sealing devices used in high-voltage line charging and discharging systems. They are typically used to protect the connectors, connections, or interfaces of high-voltage lines, ensuring they are not affected by the external environment during the high-voltage charging and discharging process. They also prevent dust, moisture, and other substances from entering the system, potentially impacting safety and performance. Existing high-voltage charging and discharging line sealing plugs lack anti-magnetic properties. The charging and discharging process of high-voltage lines generates electromagnetic fields, which can affect the system's electrical performance. To address this issue, improvements and optimizations have been made to existing high-voltage charging and discharging line sealing plugs. Utility Model Content

[0003] In order to solve the above problems, the technical problem to be solved by the present invention is to provide a sealing plug for a charging and discharging high-voltage circuit.

[0004] The technical solution adopted by the utility model of the charging and discharging high-voltage circuit sealing plug is characterized in that it includes a sealing plug body and a magnetic shielding elastic part, the sealing plug body is provided with a sealing plug wiring hole running through the front and back, the sealing plug body includes a sealing plug docking part, a sealing plug compression part and a sealing plug anti-magnetic part arranged in sequence, the front end of the sealing plug docking part is provided with a sealing plug clamping convex edge, the inner wall of the sealing plug compression part is provided with internal compression grooves arranged at intervals, the sealing plug anti-magnetic part is provided with a sealing plug inner cavity for installing the magnetic shielding elastic part and a sealing plug end stop part for preventing the magnetic shielding elastic part from falling off, and the sealing plug end stop part is provided with a sealing plug insertion hole communicating with the sealing plug wiring hole;

[0005] The magnetic shielding elastic part is composed of magnetic shielding units arranged at intervals around a circular arc and connected in sequence end to end. The cross-section of the magnetic shielding unit is a triangular structure. A shielding layer contact hole is formed in the middle of the magnetic shielding elastic part, which is in contact with the cable shielding layer and communicates with the wiring hole of the sealing plug. An elastic telescopic opening is provided in the middle of the magnetic shielding unit.

[0006] The diameter of the inner cavity of the sealing plug is larger than the diameter of the sealing plug insertion hole, and the diameter of the sealing plug insertion hole is larger than the diameter of the sealing plug wiring hole.

[0007] The compression portion of the sealing plug includes a receiving boss and an outer compression boss arranged at intervals, and the outer compression boss corresponds to the inner compression groove.

[0008] A sealing plug limiting edge is provided on the front end surface of the sealing plug docking portion, and an anti-rotation limiting opening is provided on the sealing plug limiting edge.

[0009] The cross section of the magnetic shielding unit is an equilateral triangle with its apex facing inwards. An elastic bottom edge is provided on the magnetic shielding unit, and the elastic bottom edge abuts against the inner wall of the sealing plug cavity.

[0010] The advantages of the charging and discharging high-voltage line sealing plug of the utility model are: the magnetic shielding elastic part can effectively shield the electromagnetic field generated during the charging and discharging of the high-voltage line, avoiding electromagnetic interference affecting the electrical performance of the equipment; the shielding layer contact hole and the elastic expansion opening can ensure close contact between the cable shielding layer and the magnetic shielding unit, thereby improving the shielding effect; the compression part of the sealing plug provides multi-layer compression and sealing functions, thereby enhancing the sealing performance of the cable connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0012] Figure 1 This is a structural diagram of a sealing plug for a charging and discharging high-voltage circuit of the utility model;

[0013] Figure 2 This is a structural diagram of the sealing plug body of the utility model;

[0014] Figure 3 This is a half-section view of the sealing plug body of the utility model;

[0015] Figure 4 This is a schematic structural diagram of the magnetic shielding elastic member of the utility model;

[0016] Figure 5 It is a structural schematic diagram of the magnetic shielding unit of the utility model. DETAILED DESCRIPTION

[0017] like Figure 1-5As shown, the utility model relates to a charging and discharging high-voltage circuit sealing plug, comprising a sealing plug body 1 and a magnetic shielding elastic member 2, wherein the sealing plug body 1 is provided with a sealing plug wiring hole 7 running through the front and back, the sealing plug body 1 comprises a sealing plug docking portion 4, a sealing plug compression portion 5 and a sealing plug anti-magnetic portion 6 arranged in sequence, the front end of the sealing plug docking portion 4 is provided with a sealing plug clamping convex edge 8, the inner wall of the sealing plug compression portion 5 is provided with internal compression grooves 9 arranged at intervals, the sealing plug anti-magnetic portion 6 is provided with a sealing plug inner cavity 10 for installing the magnetic shielding elastic member 2 and a sealing plug end stop portion 11 for preventing the magnetic shielding elastic member 2 from falling off, and the sealing plug end stop portion 11 is provided with a sealing plug communicating with the sealing plug wiring hole 7. The sealing plug is inserted into the hole 12; the magnetic shielding elastic part 2 is composed of magnetic shielding units 14 arranged at intervals around a circular arc and connected in sequence from head to tail. The cross-section of the magnetic shielding unit 14 is a triangular structure. A shielding layer contact hole 15 is formed in the middle of the magnetic shielding elastic part 2, which is in contact with the cable shielding layer and communicates with the sealing plug wiring hole 7. An elastic expansion opening 16 is provided in the middle of the magnetic shielding unit 14. The magnetic shielding elastic part 2 can effectively shield the electromagnetic field generated during charging and discharging of the high-voltage line, and avoid electromagnetic interference affecting the electrical performance of the equipment. The shielding layer contact hole 15 and the elastic expansion opening 16 can ensure close contact between the cable shielding layer and the magnetic shielding unit, thereby improving the shielding effect. The triangular structure is stable and not easy to fall and has good contact.

[0018] The diameter of the sealing plug inner cavity 10 is larger than the diameter of the sealing plug insertion hole 12 , and the diameter of the sealing plug insertion hole 12 is larger than the diameter of the sealing plug wiring hole 7 , which facilitates the installation and maintenance of the magnetic shielding elastic part 2 .

[0019] The compression portion 5 of the sealing plug includes a receiving boss 18 and an outer compression boss 19 arranged at intervals. The outer compression boss 19 corresponds to the inner compression groove 9, providing multi-layer compression and sealing functions, thereby enhancing the sealing performance of the cable connection.

[0020] The front end surface of the sealing plug docking portion 4 is provided with a sealing plug limiting edge 20, and the sealing plug limiting edge 20 is provided with an anti-rotation limiting opening 21 to ensure that the sealing plug can be accurately positioned during installation to prevent rotation or loosening, thereby ensuring the firmness and sealing effect of the sealing device.

[0021] The cross section of the magnetic shielding unit 14 is an equilateral triangle with its apex facing inward. An elastic bottom edge 23 is provided on the magnetic shielding unit 14 , and the elastic bottom edge 23 rests on the inner wall of the sealing plug cavity 10 . The equilateral triangle has the best stabilizing effect and more reliable support.

[0022] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention are included in the scope of protection of the present invention.

Claims

1. A sealing plug for a charging and discharging high-voltage circuit, characterized in that: The invention comprises a sealing plug body (1) and a magnetic shielding elastic member (2), wherein the sealing plug body (1) is provided with a sealing plug wiring hole (7) running through the front and back, the sealing plug body (1) comprises a sealing plug docking portion (4), a sealing plug compression portion (5) and a sealing plug anti-magnetic portion (6) arranged in sequence, the front end of the sealing plug docking portion (4) is provided with a sealing plug clamping convex edge (8), the inner wall of the sealing plug compression portion (5) is provided with inner compression grooves (9) arranged at intervals, the sealing plug anti-magnetic portion (6) is provided with a sealing plug inner cavity (10) for installing the magnetic shielding elastic member (2) and a sealing plug end stop portion (11) for preventing the magnetic shielding elastic member (2) from falling off, and the sealing plug end stop portion (11) is provided with a sealing plug insertion hole (12) communicating with the sealing plug wiring hole (7); The magnetic shielding elastic member (2) is composed of magnetic shielding units (14) arranged at intervals around a circular arc and connected end to end in sequence. The cross section of the magnetic shielding unit (14) is a triangular structure. A shielding layer contact hole (15) is formed in the middle of the magnetic shielding elastic member (2) and is in contact with the cable shielding layer and communicates with the sealing plug wiring hole (7). An elastic expansion opening (16) is provided in the middle of the magnetic shielding unit (14).

2. The sealing plug for a charge and discharge high-voltage circuit according to claim 1, characterized in that: The diameter of the sealing plug inner cavity (10) is larger than the diameter of the sealing plug insertion hole (12), and the diameter of the sealing plug insertion hole (12) is larger than the diameter of the sealing plug wiring hole (7).

3. The sealing plug for a charge and discharge high-voltage circuit according to claim 1, characterized in that: The sealing plug compression portion (5) comprises a receiving boss (18) and an outer compression boss (19) arranged at intervals, and the outer compression boss (19) corresponds to the inner compression groove (9).

4. The sealing plug for a charge and discharge high-voltage circuit according to claim 1, characterized in that: The front end surface of the sealing plug docking portion (4) is provided with a sealing plug limiting edge (20), and the sealing plug limiting edge (20) is provided with an anti-rotation limiting opening (21).

5. The sealing plug for a charge and discharge high voltage circuit according to claim 1, characterized in that: The cross section of the magnetic shielding unit (14) is an equilateral triangle with its apex facing inwards. An elastic bottom edge (23) is provided on the magnetic shielding unit (14), and the elastic bottom edge (23) abuts against the inner wall of the sealing plug inner cavity (10).