High-voltage plug and socket easy to process and capable of preventing misplug

Abstract

The utility model discloses a high-voltage plug and socket easy to process and capable of preventing misplug, which comprises a high-voltage plug and a high-voltage socket which are connected in a matched manner, the high-voltage plug comprises a T-shaped plug outer tube, a copper nut is arranged at the vertical end of the T-shaped plug outer tube, and a cable connector is connected to the horizontal end of the T-shaped plug outer tube; the copper nut is in threaded connection with a banana connector, and a power line is welded to the end of the copper nut and penetrates through the T-shaped plug outer pipe and the cable connector. The high-voltage socket comprises a cylindrical shell, a copper connector base is arranged in the cylindrical shell, and a power line is welded to the copper connector base and penetrates through the threaded cover. The cylindrical shell is sleeved on the outer wall of the T-shaped plug outer tube, and the banana joint is inserted into the copper joint seat. A power line connector of the high-voltage plug and socket is arranged in the insulating tube and can be fixed by pouring epoxy glue, so that ultrahigh voltage can be borne, and the insulativity of the high-voltage plug and socket is ensured; according to the high-voltage plug and socket, misplug operation is prevented through the special structures of the plug outer tube and the socket shell, and the high-voltage plug and socket are simple and convenient to mount and dismount.

Description

Technical Field

[0001] This utility model belongs to the field of high-voltage connector technology, specifically relating to a high-voltage plug and socket that is easy to process and prevents mis-insertion. Background Technology

[0002] High-voltage plugs and sockets are electrical connection devices used in high-voltage environments and in various high-voltage testing instruments. They include high-voltage plugs and high-voltage sockets, which are used in pairs. The high-voltage socket has a power cord soldered to its back, and the high-voltage plug also has a power cord soldered to its back. After the high-voltage plug is inserted into the high-voltage socket, an electrical connection is achieved between the inside and outside of the equipment.

[0003] High-voltage plugs and sockets must meet stringent requirements for insulation, voltage resistance, mechanical strength, and safety. Equipment often uses two pairs of high-voltage plugs and sockets. To prevent confusion, misoperation leading to personal injury, and equipment malfunction, the operating devices need to be coded, typically by shape, position, size, color, or characters. Existing technologies use cross-shaped, triangular, oval, cylindrical, and cylindrical with lug-shaped plugs and sockets to prevent mis-insertion. In actual use, the plug can only be inserted into a socket of the same type, ensuring users do not mis-inserte due to misoperation. Because the plastic parts in plugs and sockets are often irregularly shaped, their production requires plastic molds, making general machining methods inconvenient. Mold manufacturing is costly, and irregularly shaped plugs and sockets are only suitable for mass production; small-scale custom production is too expensive. Furthermore, high-voltage plugs and sockets are typically inserted from the outside of the control panel and fixed inside the high-voltage testing instrument, which is often inconvenient in actual operation. Utility Model Content

[0004] The purpose of this invention is to provide a high-voltage plug and socket that is easy to process and prevents mis-insertion, thus enabling rapid installation and disassembly of the socket.

[0005] The technical solution adopted in this utility model is an easy-to-process, mis-insertion-proof high-voltage plug and socket, including a high-voltage plug and a high-voltage socket, which are connected together. The high-voltage plug includes a T-shaped plug outer tube, with a copper nut at the vertical end and a cable connector at the horizontal end. A banana plug is threaded onto the copper nut, and a power cord is welded to the end of the copper nut, passing through the T-shaped plug outer tube and the cable connector. The high-voltage socket includes a cylindrical shell, with a threaded cap threaded to the end of the cylindrical shell. A copper connector seat is provided inside the cylindrical shell, and a power cord is welded to the copper connector seat, passing through the threaded cap. The cylindrical shell is fitted onto the outer wall of the T-shaped plug outer tube, and the banana plug is inserted into the copper connector seat.

[0006] The feature of this utility model is that,

[0007] The outer walls at both ends of the cylindrical shell are provided with external thread sections, one end of the cylindrical shell is threadedly connected to a pressure cap, and the other end of the cylindrical shell is threadedly connected to a threaded cap.

[0008] The cylindrical outer casing has a stepped hole inside the end near the pressure cap.

[0009] The outer wall of the T-shaped plug tube is also provided with a stepped shaft; the stepped shaft can be inserted into the stepped hole.

[0010] The banana connector is fixed to the end of the outer tube of the T-shaped plug by a copper nut.

[0011] Both ends of the T-shaped plug outer tube are provided with internal thread sections. The copper nut is connected to the internal thread section of the T-shaped plug outer tube, and the cable connector is threaded to the horizontal end of the T-shaped plug outer tube.

[0012] The outer wall of the cylindrical shell is also provided with a cylindrical sleeve, which is located below the pressure cap.

[0013] The beneficial effects of this utility model are: the power cord connector of the high-voltage plug and socket is placed inside an insulating tube, which can be fixed by injecting epoxy resin, can withstand ultra-high voltage, and ensures its insulation; the special structure of the plug outer tube and socket shell prevents mis-insertion through the high-voltage plug and socket. When installing the high-voltage socket on the control panel, it is inserted into the panel mounting hole from inside the instrument and fixed from the outside of the panel by tightening the pressure cap. Correspondingly, the socket is removed by loosening the pressure cap from the outside of the panel, and the socket is taken out from the inside of the panel. The installation and removal of the socket are relatively simple, and it is convenient for the customized processing of high-voltage plugs and sockets. Attached Figure Description

[0014] Figure 1 This is an isometric view of the high-voltage plug and socket of this utility model, which is easy to process and prevents misinsertion.

[0015] Figure 2 This is a cross-sectional view of the high-voltage plug and socket of this utility model, which is easy to process and prevents misinsertion.

[0016] Figure 3 This is an axial sectional view (I) of the outer tube of the T-shaped plug in the high-voltage plug and socket of this utility model, which is easy to process and prevents misinsertion.

[0017] Figure 4 This is a cross-sectional view (a) of the high-voltage plug in the high-voltage plug and socket of this utility model, which is easy to process and prevents misinsertion.

[0018] Figure 5 This is a cross-sectional view (a) of the high-voltage socket in the high-voltage plug and socket of this utility model, which is easy to process and prevents misinsertion.

[0019] Figure 6 This is an axonometric sectional view (I) of the high-voltage socket in the high-voltage plug and socket of this utility model, which is easy to process and prevents misinsertion.

[0020] Figure 7 This is an axial sectional view (I) of the cylindrical outer shell of the high-voltage plug and socket that is easy to process and prevents misinsertion in this utility model;

[0021] Figure 8 This is a cross-sectional view (II) of the high-voltage plug in the high-voltage plug and socket of this utility model, which is easy to process and prevents misinsertion.

[0022] Figure 9 This is a second axial sectional view of the high-voltage socket in the high-voltage plug and socket of this utility model, which is easy to process and prevents misinsertion.

[0023] Figure 10 This is a cross-sectional view (II) of the high-voltage socket in the high-voltage plug and socket of this utility model that is easy to process and prevents misinsertion;

[0024] Figure 11 This utility model relates to the T-shaped plug outer tube (II) of a high-voltage plug and socket that is easy to process and prevents misinsertion.

[0025] Figure 12 This is an axial sectional view (II) of the cylindrical outer shell of the high-voltage plug and socket of this utility model, which is easy to process and prevents misinsertion.

[0026] In the diagram, 1. High-voltage plug, 2. High-voltage socket, 3. Cable connector, 4. T-shaped plug outer tube, 5. Copper nut, 6. Banana connector, 7. Gland, 8. Cylindrical housing, 9. Copper connector seat, 10. Threaded cap, 11. Stepped shaft, 12. Stepped hole. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0028] Example 1

[0029] This utility model relates to an easy-to-process, mis-insertion-proof high-voltage plug and socket, such as... Figure 1 and Figure 2 As shown, it includes a high-voltage plug 1 and a high-voltage socket 2, which are connected together; as Figure 3 As shown, the high-voltage plug 1 includes a T-shaped plug outer tube 4, such as... Figure 3 and Figure 4 As shown, both ends of the T-shaped plug outer tube 4 are provided with internal thread sections; a copper nut 5 is provided at the vertical end of the T-shaped plug outer tube 4, and a cable connector 3 is threadedly connected to the horizontal end of the T-shaped plug outer tube 4; the copper nut 5 is connected to the internal thread section of the T-shaped plug outer tube 4, and a banana connector 6 is connected to the internal thread of the copper nut 5. The banana connector 6 is fixed to the end of the T-shaped plug outer tube 4 by the copper nut 5. A power cord is welded to the end of the copper nut 5, and the power cord passes through the T-shaped plug outer tube 4 and the cable connector 3; the T-shaped plug outer tube 4 after the power cord is welded to the copper nut 5 is filled with epoxy resin; as shown Figure 8 , Figure 11 As shown, a stepped shaft 11 is also provided on the outer wall of the T-shaped plug outer tube 4;

[0030] Example 2

[0031] Furthermore, the high-voltage socket 2 includes a cylindrical housing 8, such as Figure 5 , Figure 6 , Figure 7 As shown, the outer walls at both ends of the cylindrical housing 8 are provided with external threaded sections. A pressure cap 7 is threadedly connected to one end of the cylindrical housing 8, and a threaded cover 10 is threadedly connected to the other end. A cylindrical sleeve is also provided on the outer wall of the cylindrical housing 8, located below the pressure cap 7. A copper connector seat 9 is provided inside the end of the cylindrical housing 8, and a power cord is welded to the copper connector seat 9, passing through the threaded cover 10. Figure 9 , Figure 10 , Figure 12 As shown, a stepped hole 12 is provided inside the cylindrical outer shell 8 near the end of the pressure cap 7;

[0032] Example 3

[0033] When high-voltage plug 1 is inserted into high-voltage socket 2, there are two scenarios:

[0034] Scenario 1: When the outer wall of the T-shaped plug outer tube 4 is not provided with the stepped shaft 11, the cylindrical shell 8 does not need to be provided with the stepped hole 12. In this case, the T-shaped plug outer tube 4 is directly inserted into the cylindrical shell 8, that is, the cylindrical shell 8 is fitted on the outer wall of the T-shaped plug outer tube 4, and the banana connector 6 is inserted into the copper connector seat 9 to realize the electrical connection between the high-voltage plug and the high-voltage socket. This mode is named the mating connection between the type A high-voltage plug and the type A high-voltage socket.

[0035] The outer diameter of the vertical section of the T-shaped plug outer tube 4 is D. A1 The length of the vertical section of the outer tube 4 of the T-shaped plug is L. A1 The inner diameter of the cylindrical outer shell 8 is D. A1 The length of the section from the end of the cylindrical shell 8 to the copper connector seat 9 is L. A1 This ensures that the high-voltage plug can be properly inserted into the high-voltage socket.

[0036] Scenario 2: When the outer wall of the T-shaped plug outer tube 4 is provided with a stepped shaft 11, the cylindrical shell 8 needs to be provided with a stepped hole 12. In this case, the T-shaped plug outer tube 4 is directly inserted into the cylindrical shell 8, and the stepped shaft 11 and the stepped hole 12 can be connected. That is, the cylindrical shell 8 is fitted on the outer wall of the T-shaped plug outer tube 4, and the banana connector 6 is inserted into the copper connector seat 9 to realize the electrical connection between the high-voltage plug and the high-voltage socket. This mode is named the mating connection between the B-type high-voltage plug and the B-type high-voltage socket.

[0037] Example 4

[0038] The outer diameter of the vertical section of the T-shaped plug outer tube 4 is D. B2 The length of the vertical section of the outer tube 4 of the T-shaped plug is L. B2 The length of step axis 11 is L B1 The outer diameter of the stepped shaft 11 is D. B1 The inner diameter of the cylindrical outer shell 8 is D. B2 The length of the section from the end of the cylindrical shell 8 to the copper connector seat 9 is L. B2 The length of the stepped hole 12 is L B1 The inner diameter of the stepped hole 12 is D. B1 This ensures that the high-voltage plug can be properly inserted into the high-voltage socket.

[0039] Example 5

[0040] Because of D A1 >D B2 When a type A high-voltage plug is inserted into a type B socket, it can only be inserted to a length of L. B1 One section cannot achieve a normal electrical connection, and the operator can visually detect the abnormality, avoiding incorrect insertion. When a type B high-voltage plug is inserted into a type A socket, due to D... B1 >D A1 D B2 <D A1 Type B high-voltage plugs can only be inserted into Type A sockets. B2 -L B1 Due to the large gap between the plug and the socket, the plug can wobble in the socket, preventing normal electrical connection. Operators can also visually detect the abnormality, thus avoiding mis-insertion.

[0041] Example 6

[0042] The high-voltage socket 2 is installed on the operation panel of the high-voltage testing instrument. The high-voltage plug 1 is placed on the outside. After the power cord is soldered to the copper connector 9, it is screwed into the cylindrical housing 8. After applying epoxy resin, the threaded cap 10 is tightened. The cylindrical housing 8 is then inserted from inside the high-voltage instrument into the pre-drilled mounting hole on the instrument's operation panel. The pressure cap 7 is then tightened to fix the socket on the operation panel, completing the installation of the high-voltage socket. The power cord is soldered to the small end of the copper nut 5. Then, the copper nut 5 is tightened to the outer tube 4 of the T-shaped plug. The banana connector 6 is screwed into the copper nut 5, epoxy resin is applied, and the cable connector 3 is passed through the power cord and screwed into the outer tube 4 of the T-shaped plug, completing the assembly of the high-voltage plug. When the high-voltage plug is inserted into a high-voltage socket of the same model, the banana connector 6 in the high-voltage plug will insert into the copper connector 9 of the high-voltage socket, realizing the electrical connection between the internal and external power cords.

[0043] When the high-voltage socket 2 installed on the panel of the high-voltage testing instrument needs to be disassembled for debugging, maintenance, etc., the pressure cover 7 can be unscrewed, and the cylindrical outer shell 8 connected to the power cord can be taken out from inside the instrument, avoiding the inconvenience of disassembling from the outside of the instrument's operating panel.

Claims

1. A high voltage plug and socket which is easy to process and prevents misplug, characterized in that, The device includes a high-voltage plug (1) and a high-voltage socket (2), which are connected together. The high-voltage plug (1) includes a T-shaped plug tube (4), a copper nut (5) is provided at the vertical end of the T-shaped plug tube (4), and a cable connector (3) is connected to the horizontal end of the T-shaped plug tube (4). A banana connector (6) is threaded onto the copper nut (5), and a power cord is welded to the end of the copper nut (5). The power cord passes through the T-shaped plug tube (4) and the cable connector (3). The high-voltage socket (2) includes a cylindrical shell (8), a threaded cap (10) is connected to the end of the cylindrical shell (8), and a copper connector seat (9) is provided inside the cylindrical shell (8). A power cord is welded onto the copper connector seat (9), and the power cord passes through the threaded cap (10). The cylindrical shell (8) is fitted onto the outer wall of the T-shaped plug tube (4), and the banana connector (6) is inserted into the copper connector seat (9).

2. The easy-to-machine, mistake-resistant high voltage plug and socket of claim 1, wherein, The cylindrical shell (8) has external threaded sections on its outer walls at both ends. One end of the cylindrical shell (8) is threadedly connected to a pressure cap (7), and the other end of the cylindrical shell (8) is threadedly connected to a threaded cap (10).

3. The easy-to-machine, mistake-resistant high voltage plug and socket of claim 2, wherein, The cylindrical outer shell (8) has a stepped hole (12) inside the end near the pressure cap (7).

4. The easy-to-machine, mistake-resistant high voltage plug and socket of claim 3, wherein, The outer wall of the T-shaped plug outer tube (4) is also provided with a stepped shaft (11); the stepped shaft (11) can be inserted into the stepped hole (12).

5. The easy-to-machine, mistake-resistant, high voltage plug and jack of claim 1, wherein, The banana connector (6) is fixed to the end of the outer tube (4) of the T-shaped plug by a copper nut (5).

6. The easy-to-machine, mistake-resistant, high voltage plug and socket of claim 1, wherein, Both ends of the T-shaped plug outer tube (4) are provided with internal thread sections.

7. The easy-to-machine, mistake-resistant high voltage plug and socket of claim 6, wherein, The copper nut (5) is connected to the internal thread section of the T-shaped plug outer tube (4), and the cable connector (3) is threadedly connected to the horizontal end of the T-shaped plug outer tube (4).

8. The easy-to-machine, mistake-resistant, high voltage plug and socket of claim 1, wherein, The outer wall of the cylindrical shell (8) is also provided with a cylindrical sleeve, which is located below the pressure cap (7).

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