High-voltage connecting assembly

Abstract

The utility model relates to the technical field of connectors, in particular to a high-voltage connecting assembly. The high-voltage connecting assembly comprises a socket, a plug and a bolt, the socket comprises a plug-in terminal, the plug comprises a terminal, the end face of the plug-in terminal is provided with a threaded hole, the terminal is provided with a through hole, and the bolt penetrates through the through hole and is in threaded connection with the threaded hole; the socket further comprises an installation cylinder and an interlocking loop arranged in the installation cylinder, the plug further comprises an interlocking piece capable of axially sliding in the installation cylinder, an interlocking screw connected with the interlocking piece and an insulation cap at least capable of covering the exposed portion of the bolt, and one end, facing the plug, of the installation cylinder is provided with an internal thread. The insulation cap is provided with a mounting hole, and the interlocking screw passes through the mounting hole and is in threaded connection with the internal thread, and simultaneously drives the interlocking member to slide axially and is communicated with the interlocking loop. According to the utility model, the whole structure is simpler, the manufacturing cost is lower, and the safety performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, and more specifically, to a high-voltage connection assembly. Background Art

[0002] There are many current high-voltage connector structures. For example, a plug includes a shell, an inner core, a tail cover, a high-voltage interlock and other structures. However, with the continuous development and changes of application equipment, in some occasions such as high-voltage connectors installed in relatively closed shells in the vehicle body, they may not completely require the above-mentioned structures due to lower protection requirements. Therefore, it is necessary to develop simplified high-voltage connectors suitable for some of the above occasions to reduce costs. Utility Model Content

[0003] The utility model provides a high-voltage connection assembly to solve the problems of complex structure and high cost of the existing high-voltage connector in occasions with low protection requirements.

[0004] The utility model provides a high-voltage connection assembly, comprising a socket and a plug that are plugged into each other and at least one bolt, wherein the socket comprises at least one plug-in terminal, the plug comprises a terminal corresponding to the plug-in terminal, the plug-in terminal and the terminal are electrically connected to each other, and is characterized in that a threaded hole is arranged on the end face of the plug-in terminal, a through hole is arranged through the terminal, the bolt passes through the through hole and is screwed with the threaded hole, thereby limiting the separation of the plug-in terminal and the terminal;

[0005] The socket further comprises a mounting cylinder, in which a disconnected interlocking circuit is arranged, and the plug further comprises an interlocking piece that can slide axially in the mounting cylinder, an interlocking screw connected to the interlocking piece, and an insulating cap that can at least cover the exposed portion of the bolt, the mounting cylinder is provided with an internal thread at one end facing the plug, the insulating cap is provided with a mounting hole, the interlocking screw passes through the mounting hole and is screwed to the internal thread, and at the same time drives the interlocking piece to slide axially and connect the interlocking circuit;

[0006] When the socket and the plug need to be separated, first loosen the interlocking screw so that the interlocking screw drives the interlocking part to separate from the interlocking circuit, then move the insulating cap to expose the bolt, and loosen the bolt to separate the plug-in terminal from the terminal.

[0007] Optionally, the terminal comprises a columnar terminal and a plate-shaped terminal, the columnar terminal is perpendicular to and electrically connected to the plate-shaped terminal, the through hole penetrates the columnar terminal and the plate-shaped terminal, and an insulating shell is provided at least on the periphery of the plate-shaped terminal.

[0008] Optionally, a connecting cylinder is provided on the plug, the columnar terminal is fixedly installed in the connecting cylinder and is electrically connected to the plug-in terminal, and the insulating shell cover is arranged outside the connecting cylinder.

[0009] Optionally, a positioning ring is provided on the insulating shell, and the interlocking screw passes through the positioning ring and is installed on the mounting cylinder, so that the terminal is fixedly connected to the mounting cylinder.

[0010] Optionally, there are multiple terminals, corresponding to multiple bolts and multiple insulating caps, and the interlocking screws pass through multiple mounting holes and multiple positioning rings and are installed on the mounting tube to fix the multiple terminals to the mounting tube.

[0011] Optionally, a sealing ring is provided on the end surface of the interlocking screw head facing the insulating cap.

[0012] Optionally, a stopping structure is provided between the interlocking screw and the interlocking part to prevent the two from being axially separated, and the interlocking screw and the interlocking part can rotate relative to each other, and the interlocking screw can drive the interlocking part to slide axially in the installation tube when the interlocking screw is threadedly connected with the internal thread.

[0013] Optionally, the end face of one of the interlocking screw and the interlocking part is provided with a rotating hole extending along its axis, and a stop edge extending radially inward is provided at the port of the rotating hole. A protruding connecting head is provided at the end of the other interlocking screw and the interlocking part, and a groove extending circumferentially is provided at the position of the connecting head corresponding to the stop edge, and the stop edge is snap-fitted with the groove to form the stopping structure.

[0014] Optionally, a plurality of first grooves are provided on the side wall of the rotating hole in the axial direction so that the retaining edge has the elasticity to expand outward, and after the connecting head opens the retaining edge and enters the rotating hole, the retaining edge elastically recovers and engages with the groove.

[0015] Optionally, the connector is provided with at least one through second groove along its radial direction so that the connector has the elasticity to be compressed inwards, and after being compressed, the connector enters the rotating hole and restores its elasticity, so that the retaining edge is engaged with the groove.

[0016] Optionally, the radial cross section of the interlocking piece is a non-circular structure, and the portion of the mounting tube between the internal thread and the interlocking loop is adapted to the radial cross section shape of the interlocking piece to axially slide with the interlocking piece while preventing the interlocking piece from rotating.

[0017] Optionally, the interlocking piece includes a pin, the interlocking circuit includes at least two interlocking terminals, and the pin is inserted into at least two interlocking terminals to enable the interlocking piece to connect to the interlocking circuit.

[0018] Optionally, the interlocking piece includes a metal column, the interlocking loop includes at least two interlocking terminals, ends of at least two of the interlocking terminals are provided with spring structures, and the metal column is in elastic contact with the spring structure to realize the interlocking piece connecting the interlocking loop.

[0019] The utility model has the following beneficial effects:

[0020] 1. The plug of the utility model includes terminals, interlocking parts, interlocking screws and insulating caps. The insulating caps can cover the area where the bolts are located to achieve the protection of the terminals and bolts. Therefore, the plug of the utility model eliminates the traditional shell of the high-voltage connector, and eliminates the inner core, tail cover and other structures. The overall structure is simpler, the manufacturing cost is lower, and it is more suitable for installation occasions with low protection requirements. In addition, based on the conventional electrical insulation design, the plug of the utility model can be insulated according to actual needs using conventional means, such as expanding the shielding range of the insulating cap and coating the terminals and the outer periphery of the wires connected to the terminals with insulating materials. The plug can have stronger electrical protection performance and can adapt to installation environments with different protection requirements.

[0021] 2. The interlocking part of the utility model is driven by the interlocking screw to connect with the interlocking circuit, and the interlocking screw needs to first pass through the mounting hole of the insulating cap before entering the mounting hole of the socket. Therefore, when the plug and the socket need to be disassembled, it is necessary to loosen the interlocking screw first, causing the interlocking part to separate from the interlocking circuit and interrupt the connection signal before the insulating cap can move and expose the bolt. In other words, when disassembling the plug and the socket, the connection signal must be interrupted first so that the entire high-voltage connection assembly can be de-energized before continuing to disassemble. This has a strong safety performance, avoids the risk of live operation caused by the delay in the disassembly action due to the interruption of the connection signal of the high-voltage interlocking structure, and improves safety performance.

[0022] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0024] Figure 1 This is a schematic diagram of the structure of the high-voltage connection assembly;

[0025] Figure 2 It is a cross-sectional schematic diagram of the terminals after the plug and the socket are connected;

[0026] Figure 3 is a schematic diagram of the structure of the terminal;

[0027] Figure 4 for Figure 3 A cross-sectional schematic diagram of

[0028] Figure 5 It is a cross-sectional schematic diagram of the installation tube after the interlocking circuit is turned on;

[0029] Figure 6 It is a schematic diagram of the structure of the insulating cap;

[0030] Figure 7 It is a schematic diagram of the connection state of the interlocking screw and the interlocking part;

[0031] Figure 8 is a cross-sectional schematic diagram of an interlocking screw;

[0032] Fig. 9 is a schematic diagram of the structure of the interlocking parts;

[0033] Fig.10 It is a schematic diagram of the state of the interlocking component conducting the interlocking circuit;

[0034] Fig.11 It is a cross-sectional schematic diagram of the installation tube in another embodiment.

[0035] The following are marked in the figure:

[0036] An embodiment:

[0037] 1. Insulation cap; 11. Mounting hole;

[0038] 2. Socket; 21. Mounting tube; 22. Interlocking terminal; 23. Connecting tube; 24. Plug-in terminal;

[0039] 3. interlocking screw; 31. sealing ring; 32. interlocking piece; 33. pin; 301. rotating hole; 302. retaining edge; 321. connector; 322. second notch; 323. groove; 324. anti-rotation surface;

[0040] 4. Plate terminal; 41. Insulating shell; 411. Protective shell; 412. Flanging; 42. Positioning ring; 43. Column terminal;

[0041] 5. Bolts.

[0042] Another example:

[0043] 6. Interlocking screws; 7. Metal pillars; 8. Interlocking terminals; 81. Spring clip structure. DETAILED DESCRIPTION

[0044] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0045] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0046] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0047] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0048] An embodiment of the high voltage connection assembly, such as Figure 1-10 As shown, a high-voltage connection assembly is provided, including a socket 2 and a plug that are plugged into each other and two bolts 5. The socket 2 includes two plug-in terminals 24. The plug-in terminals 24 are cylindrical in structure and are fixedly installed on the socket 2. One end of the plug-in terminal 24 faces the plug. The plug includes two terminals corresponding to the plug-in terminals 24. The plug-in terminals 24 and the terminals are electrically connected to each other. A threaded hole is set on the end face of the plug-in terminal 24, and a through hole is set through the terminal. The bolt 5 passes through the through hole and is screwed with the threaded hole, thereby limiting the separation of the plug-in terminal 24 and the terminal.

[0049] The socket 2 also includes a mounting tube 21, in which a disconnected interlocking circuit is provided. The plug also includes an interlocking part 32 that can slide axially in the mounting tube 21, an interlocking screw 3 connected to the interlocking part 32, and an insulating cap 1 that can at least cover the exposed portion of the bolt 5. The mounting tube 21 is provided with an internal thread at one end facing the plug, and the insulating cap 1 is provided with a mounting hole 11. The interlocking screw 3 passes through the mounting hole 11 and is screwed to the internal thread, thereby driving the interlocking part 32 to slide axially and connect the interlocking circuit.

[0050] When the socket 2 and the plug need to be separated, first loosen the interlocking screw 3 so that the interlocking screw 3 drives the interlocking member 32 to separate from the interlocking circuit, then move the insulating cap 1 to expose the bolt 5, and loosen the bolt 5 to separate the plug-in terminal 24 from the terminal.

[0051] The plug of this embodiment includes a terminal, an interlocking piece 32, an interlocking screw 3 and an insulating cap 1. The insulating cap 1 can cover the area where the bolt 5 is located to achieve the protection of the terminal and the bolt 5. Therefore, the plug of the utility model eliminates the traditional shell of the high-voltage connector, and eliminates the inner core, tail cover and other structures. The overall structure is simpler, the manufacturing cost is lower, and it is more suitable for installation occasions with low protection requirements. In addition, based on the conventional electrical insulation design, the plug can be insulated according to actual needs using conventional means, such as expanding the shielding range of the insulating cap 1 and coating the terminal and the outer periphery of the wire connected to the terminal with insulating material. The plug can have stronger electrical protection performance and can adapt to installation environments with different protection requirements.

[0052] Furthermore, specifically Figure 2-4 As shown, in order to facilitate assembly and optimize the structure, the terminal includes a columnar terminal 43 and a plate-like terminal 4. The columnar terminal 43 is perpendicular to and electrically connected to the plate-like terminal 4. The electrical connection can be welding. A through hole passes through the columnar terminal 43 and the plate-like terminal 4. An insulating shell 41 is provided on the outer periphery of the plate-like terminal 4 to prevent leakage and electric shock, and the insulating shell 41 is provided with a flange 412 near the bolt 5. The insulating cap 1 is inserted on the flange 412 to prevent sliding along the radial direction of the bolt 5.

[0053] In this embodiment, the plate-shaped terminal 4 is a separate component, which can be connected to a wire that transmits current. In other embodiments, the plate-shaped terminal can also be made directly from the end of the wire, so that the plate-shaped terminal and the wire are an integrated structure.

[0054] In other embodiments, an insulating shell may also be provided on the outer periphery of the columnar terminal; the terminal may also be a columnar structure, and the wire with an insulating layer is directly connected to the terminal, and the plug-in terminal is embedded in a preset socket of the socket. After the terminal and the plug-in terminal are connected by bolts, the terminals are all inserted into the socket, and then the insulating cap covers the corresponding parts of the bolts and the wire, so as to achieve the purpose of preventing leakage and electric shock.

[0055] Furthermore, specifically Figure 2 As shown, in order to prevent leakage and electric shock through the columnar terminal 43 and the plug-in terminal 24, and to facilitate the mating connection between the columnar terminal 43 and the plug-in terminal 24, a connecting tube 23 is provided on the plug, and the connecting tube 23 is made of insulating material. The columnar terminal 43 is fixedly installed in the connecting tube 23 and is electrically connected to the plug-in terminal 24. In addition, the insulating shell 41 on the outer periphery of the plate terminal 4 extends to form a protective shell 411 and is covered outside the connecting tube 23 to clamp the connecting tube 23 together with the columnar terminal 43 to prevent the connecting tube 23 from being separated from the columnar terminal 43, while providing reinforcement and protection for the connecting tube 23.

[0056] Furthermore, specifically Figure 1 , Figure 2As shown, a positioning ring 42 is provided on the insulating shell 41, and the interlocking screw 3 passes through the positioning ring 42 and is installed on the mounting tube 21, so that the terminal is fixedly connected to the mounting tube 21 and is convenient for the installation and positioning of the terminal. The positioning ring 42 can be tightly fitted with the mounting tube 21 to enhance the fixed connection effect.

[0057] Furthermore, specifically Figure 1 As shown, there are two terminals, corresponding to two bolts 5 and two insulating caps 1 , and the interlocking screws 3 pass through two mounting holes 11 and two positioning rings 42 and are installed on the mounting tube 21 to fix the two terminals to the mounting tube 21 .

[0058] In other embodiments, the number of terminals, bolts, and insulating caps may be other required numbers, such as three, four, etc.

[0059] Furthermore, specifically Figure 7 As shown, a sealing ring 31 is provided on the end surface of the head of the interlocking screw 3 facing the insulating cap 1 for screwing, thereby improving the sealing ability in the installation cylinder 21.

[0060] Furthermore, specifically Figure 7-9 As shown, in order to make the axial displacement drive of the interlocking screw 3 and the interlocking part 32 more stable and the connection structure more reasonable, a stopping structure is provided between the interlocking screw 3 and the interlocking part 32 to prevent the axial separation of the two, and the interlocking screw 3 and the interlocking part 32 can rotate relative to each other. When the interlocking screw 3 is threadedly connected with the internal thread, the interlocking part 32 can be driven to slide axially in the installation tube 21.

[0061] More specifically, the end face of the interlocking screw 3 is provided with a rotating hole 301 extending along its axis, and a stop edge 302 extending radially inward is provided at the end of the rotating hole 301. A protruding connecting head 321 is provided at the end of the interlocking part 32, and a groove 323 extending in the circumferential direction is provided at the position of the connecting head 321 corresponding to the stop edge 302. The stop edge 302 is snap-fitted with the groove 323 to form a stopping structure.

[0062] In other embodiments, the rotating hole can also be set on the interlocking part, and correspondingly, the connecting head is set on the interlocking screw; the stopping structure can also be other structures that can prevent the interlocking screw and the interlocking part from being axially separated, such as mutually attractive magnets set correspondingly at the ends of the interlocking screw and the interlocking part. That is to say, mutually attractive magnets are set at the corresponding ends of the interlocking screw and the interlocking part, which can not only meet the rotational connection between the two in the mounting tube, but also prevent the two from being axially separated in the mounting tube, but it should be noted that the attraction between the magnets needs to be greater than the resistance when the interlocking part is separated from the interlocking circuit; the stopping structure can also be a circular ring set on the circumferential side of one end of the interlocking screw and the interlocking part, and a plurality of claws on the circumferential side of the other end, the claws extend toward the circular ring and axially clamp the circular ring so that the interlocking screw and the interlocking part cannot be axially separated, but the circular ring can rotate in the space surrounded by the claws so that the fixed rod and the rotating rod can rotate relative to each other. This structure is a conventionally feasible technology, so it will not be described in detail.

[0063] Furthermore, specifically Fig. 9 As shown, in order for the connector 321 to smoothly pass over the retaining edge 302 and enter the rotating hole 301, the connector 321 is provided with at least one through second groove 322 along its radial direction so that the connector 321 has the elasticity to be compressed inwardly. After being compressed, the connector 321 enters the rotating hole 301 and restores its elasticity, so that the retaining edge 302 is engaged with the groove 323.

[0064] In other embodiments, a plurality of first grooves may be provided on the side wall of the rotating hole along the axial direction so that the retaining edge has the elasticity to expand outward. After the connector opens the retaining edge and enters the rotating hole, the retaining edge elastically recovers and engages with the groove.

[0065] Furthermore, specifically Figure 7 , Fig. 9 As shown, in order to make the connection and separation of the interlocking part 32 and the interlocking circuit more stable, the radial cross-section of the interlocking part 32 is a non-circular structure, and the portion of the mounting cylinder 21 between the internal thread and the interlocking circuit is adapted to the radial cross-sectional shape of the interlocking part 32 to cooperate with the axial sliding of the interlocking part 32 while preventing the interlocking part 32 from rotating.

[0066] In this embodiment, the cylindrical structure cuts out a rotation-stopping surface 324 in a direction parallel to its axial section to form the above-mentioned interlocking member 32, so that the radial section presents a non-circular structure. In other embodiments, the above-mentioned interlocking member 32 can also be a rectangular parallelepiped, and the cross-section of the rectangular parallelepiped is square, that is, it also belongs to a non-circular structure. Other shapes suitable for the functions and purposes of this solution are not listed in detail.

[0067] Furthermore, specifically Figure 5 , Figure 7 , Fig. 9 and Fig.10As shown, the interlocking part 32 includes a pin 33, which is an integrated U-shaped structure and is located at one end of the interlocking part 32 away from the interlocking screw 3. The interlocking part 32 is made of an insulating material such as plastic, and the pin 33 is made of a metal material such as copper, and the pin 33 is embedded in the end of the interlocking part 32 by injection molding. The interlocking circuit includes two interlocking terminals 22, and the pin 33 is inserted into the two interlocking terminals 22 to realize the connection of the interlocking part 32 to the interlocking circuit.

[0068] In other embodiments, the number of pins and the number of interlocking terminals can be set to multiple numbers according to actual needs.

[0069] The above interlocking screws 3 can be made of insulating material such as plastic.

[0070] During specific installation, the plug-in terminal 24 on the socket 2 is inserted into the connecting tube 23 of the plug, and the positioning ring 42 is installed on the mounting tube 21. Then the bolt 5 is connected to the terminal and the plug-in terminal 24. Then the insulating cap 1 covers the bolt 5 and the mounting hole 11 of the insulating cap 1 is installed corresponding to the mounting tube 21. Finally, the combination of the interlocking screw 3 and the interlocking member 32 is passed through the mounting hole 11 until the interlocking screw 3 is screwed with the mounting hole 11. At this time, the interlocking member 32 is connected to the interlocking circuit. Therefore, the interlocking circuit is connected after the terminal is connected to the plug-in terminal 24 and the insulation covers the bolt 5, which is highly safe.

[0071] During disassembly, loosen the interlocking screw 3. During the retraction of the interlocking screw 3, the interlocking piece 32 and the pin 33 thereon are driven to axially move until the pin 33 is separated from the interlocking terminal 22. Continue to loosen the interlocking screw 3 to disconnect it from the mounting tube 21. At this time, the combination of the interlocking screw 3 and the interlocking piece 32 can be pulled out of the mounting hole 11, and the insulating cover can be moved to expose the bolt 5. The bolt 5 can be loosened to disconnect the terminal and the plug-in terminal 24.

[0072] Therefore, when it is necessary to disassemble the plug and the socket 2, it is necessary to first loosen the interlocking screw 3, causing the interlocking part 32 to separate from the interlocking circuit and interrupt the connection signal before the insulating cap 1 can move and expose the bolt 5. That is to say, when disassembling the plug and the socket 2, it is necessary to first interrupt the connection signal so that the entire high-voltage connection assembly is de-energized before the disassembly can continue. Therefore, the disconnection of the interlocking circuit occurs before the insulating cap 1 moves, which has high safety and avoids the risk of live operation caused by the delay in the disassembly action due to the interruption of the connection signal in the conventional high-voltage interlocking structure.

[0073] The following is another embodiment of the high-voltage connection assembly, which differs from the above embodiment in the difference in local structure.

[0074] like Fig.11As shown, in this embodiment, the interlocking part includes a metal column 7, which is fixedly arranged on the end face of the corresponding end of the interlocking screw 6. The interlocking circuit includes two interlocking terminals 8. The ends of the two interlocking terminals 8 are provided with a spring structure 81. The metal column 7 is in elastic contact with the spring structure 81 to realize the interlocking part connecting the interlocking circuit.

[0075] The number of the interlocking terminals 8 can be increased according to actual needs.

[0076] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A high-voltage connection assembly, comprising a socket and a plug that are plugged into each other and at least one bolt, wherein the socket comprises at least one plug-in terminal, the plug comprises a terminal corresponding to the plug-in terminal, the plug-in terminal and the terminal are electrically connected to each other, characterized in that: The end surface of the plug-in terminal is provided with a threaded hole, the terminal is provided with a through hole, the bolt passes through the through hole and is screwed with the threaded hole, thereby limiting the separation of the plug-in terminal and the terminal; The socket further comprises a mounting cylinder, in which a disconnected interlocking circuit is arranged, and the plug further comprises an interlocking piece that can slide axially in the mounting cylinder, an interlocking screw connected to the interlocking piece, and an insulating cap that can at least cover the exposed portion of the bolt, the mounting cylinder is provided with an internal thread at one end facing the plug, the insulating cap is provided with a mounting hole, the interlocking screw passes through the mounting hole and is screwed to the internal thread, and at the same time drives the interlocking piece to slide axially and connect the interlocking circuit; When the socket and the plug need to be separated, first loosen the interlocking screw so that the interlocking screw drives the interlocking part to separate from the interlocking circuit, then move the insulating cap to expose the bolt, and loosen the bolt to separate the plug-in terminal from the terminal.

2. A high voltage connection assembly according to claim 1, characterized in that: The terminal comprises a columnar terminal and a plate-shaped terminal, the columnar terminal is perpendicular to and electrically connected to the plate-shaped terminal, the through hole penetrates the columnar terminal and the plate-shaped terminal, and an insulating shell is provided at least on the periphery of the plate-shaped terminal.

3. A high voltage connection assembly according to claim 2, characterized in that: The plug is provided with a connecting cylinder, the columnar terminal is fixedly installed in the connecting cylinder and is electrically connected to the plug-in terminal, and the insulating shell is arranged outside the connecting cylinder.

4. A high voltage connection assembly according to claim 2, characterized in that: The insulating shell is provided with a positioning ring, and the interlocking screw passes through the positioning ring and is installed on the mounting cylinder, so that the terminal is fixedly connected to the mounting cylinder.

5. A high voltage connection assembly according to claim 4, characterized in that: There are multiple terminals, corresponding to multiple bolts and multiple insulating caps. The interlocking screws pass through multiple mounting holes and multiple positioning rings and are installed on the mounting tube to fix the multiple terminals to the mounting tube.

6. A high voltage connection assembly according to claim 1, characterized in that: A sealing ring is arranged on the end surface of the head of the interlocking screw facing the insulating cap.

7. A high voltage connection assembly according to claim 1, characterized in that: A stop structure is provided between the interlocking screw and the interlocking part to prevent the two from being axially separated, and the interlocking screw and the interlocking part can rotate relatively, and the interlocking screw can drive the interlocking part to slide axially in the installation tube when the interlocking screw is threadedly connected with the internal thread.

8. A high voltage connection assembly according to claim 7, characterized in that: The end face of one of the interlocking screw and the interlocking part is provided with a rotating hole extending along the axis thereof, and the port of the rotating hole is provided with a stop edge extending radially inwardly, and the other end of the interlocking screw and the interlocking part is provided with a protruding connecting head, and the position of the connecting head corresponding to the stop edge is provided with a groove extending in the circumferential direction, and the stop edge is snap-fitted with the groove to form the stopping structure.

9. A high voltage connection assembly according to claim 8, characterized in that: A plurality of first grooves are arranged on the side wall of the rotating hole in the axial direction so that the retaining edge has the elasticity to expand outwards. After the connecting head opens the retaining edge and enters the rotating hole, the retaining edge elastically recovers and engages with the groove.

10. A high voltage connection assembly according to claim 8, characterized in that: The connector is provided with at least one through second groove along its radial direction, so that the connector has the elasticity of being compressed inwards. After being compressed, the connector enters the rotating hole and restores its elasticity, and the retaining edge is engaged with the groove.

11. A high voltage connection assembly according to claim 1, characterized in that: The radial cross section of the interlocking piece is a non-circular structure, and the portion of the mounting cylinder between the internal thread and the interlocking loop is adapted to the radial cross section shape of the interlocking piece to axially slide with the interlocking piece while preventing the interlocking piece from rotating.

12. A high voltage connection assembly according to claim 1, characterized in that: The interlocking piece includes a pin, the interlocking circuit includes at least two interlocking terminals, and the pin is inserted into at least two interlocking terminals to enable the interlocking piece to connect to the interlocking circuit.

13. A high voltage connection assembly according to claim 1, characterized in that: The interlocking piece includes a metal column, the interlocking loop includes at least two interlocking terminals, at least two of the interlocking terminals have spring structures at their ends, and the metal column elastically contacts the spring structures to achieve interlocking piece connection to the interlocking loop.

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