A new energy vehicle high power connector and preparation method thereof

Abstract

The present invention discloses a high-power connector for new energy vehicles and a preparation method thereof, and relates to the technical field of new energy vehicle accessories. The connector includes a connector plug and a connector socket, one side of the connector plug is fixedly connected with a threaded connection column, one end of the threaded connection column is fixedly connected with a threading barrel, one end of the threading barrel is coaxially fixedly connected with a hollow connection column, and also includes: a sliding clamping mechanism, a rotating pushing mechanism, a winding sealing mechanism, and a nitrogen filling mechanism. The present invention rotates the operating ring to make the threaded sleeve move laterally along the threaded connection column, so that the threaded sleeve pushes the sliding sleeve onto the hollow connection column. In this process, the sliding sleeve squeezes the triangular rotating block set, and the high-power metal end inserted in the threading barrel is compressed and fixed by the triangular rotating block. At the same time, the retracting rope makes the elastic rubber ring tightened on the high-power cable body to achieve double fixation, ensuring that the cable connection is stable, and the operation is convenient and effective.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy automobile accessories, and in particular to a new energy automobile high-power connector and a preparation method thereof. Background Art

[0002] New energy vehicles rely on electricity to run, and they require various power components to form a power system. Among them, high-power transmission cables are indispensable. When the cable is connected to the device or power supply, a high-power connector is required. A high-power connector is an electrical connector specially designed to connect high-power power supplies and equipment. It can withstand large currents and voltages to meet the high power requirements of the equipment.

[0003] Existing high-power connectors generally include a connecting plug and a connecting socket. The plug and the socket are respectively connected to the corresponding equipment and connected to the high-power transmission cable. Generally, in order to facilitate maintenance and replacement, the exposed metal end of the cable is inserted into the connecting plug or socket, and then the cable end is fixed and pressed into the plug or socket by fasteners such as screws to achieve fixation and conductivity. In order to ensure safety, insulating tape is also wrapped around the outside.

[0004] The shortcomings of the existing high-power connector are that the connection between the existing high-power connector and the cable end is only fixed and tightened by screws. Once the screws are loose, it is easy to cause the cable end to loosen, affecting the conductive transmission. Although fasteners can be added, they need to be operated one by one, resulting in poor convenience in disassembly and assembly. After the cable end is plugged into the connector, although it can be fixed, there must be a certain gap between the connector plugging position and the cable, and external dust or moisture can easily enter and cause danger. In addition, during the use of high-power cables, due to the large current and voltage transmitted, the metal conductive end plugged into the connector may generate sparks, and the existing connectors are not convenient for reducing the danger when such situations occur. Summary of the invention

[0005] The purpose of the present invention is to provide a new energy vehicle high-power connector and a preparation method thereof, so as to solve the technical problem in the prior art that the new energy vehicle high-power connector is not convenient to operate when being securely fixedly connected to a cable.

[0006] The technical problem to be solved by the present invention can be achieved by the following technical solutions:

[0007] A high-power connector for new energy vehicles, comprising a connector plug and a connector socket, wherein one side of the connector plug is fixedly connected to a threaded connection column, an end of the threaded connection column away from the connector plug is fixedly connected to a threading barrel, an inner side of the threading barrel is fixedly connected to a conductive block electrically connected to the connector plug, and an end of the threading barrel away from the connector plug is coaxially fixedly connected to a hollow connection column, and further comprising:

[0008] A sliding clamping mechanism and a rotating pushing mechanism, wherein the sliding clamping mechanism comprises a sliding sleeve and a rotating extrusion mechanism, wherein the sliding sleeve is slidingly mounted on the outer wall of the threading barrel, the rotating extrusion mechanism is arranged on one side of the threading barrel, and the rotating extrusion mechanism cooperates with the sliding sleeve; the rotating pushing mechanism is rotatably arranged on the outside of the threaded connection column, and the rotating pushing mechanism cooperates with the sliding sleeve;

[0009] A winding sealing mechanism and a nitrogen charging mechanism, wherein the winding sealing mechanism is arranged on a hollow connecting column, and a linkage mechanism is connected between the winding sealing mechanism and the sliding sleeve; the nitrogen charging mechanism is arranged on the hollow connecting column, and the nitrogen charging mechanism is connected to the inside of the threading barrel, and the nitrogen charging mechanism includes an opening and closing switch member that cooperates with the sliding sleeve.

[0010] As a further solution of the present invention: the rotary pushing mechanism includes a threaded sleeve, the threaded sleeve is sleeved on the outer wall of the threaded connection column, and the threaded sleeve is threadedly connected to the threaded connection column.

[0011] As a further solution of the present invention: an end of the threaded connection column away from the hollow connection column is rotatably sleeved with an operating swivel, and a telescopic connecting rod is connected between the operating swivel and the threaded swivel.

[0012] As a further solution of the present invention: the rotary extrusion mechanism includes a movable opening and a triangular rotating block, the movable opening is opened on one side of the threading barrel, the triangular rotating block is arranged in the movable opening, and one end of the triangular rotating block is rotatably connected to the inner wall of the movable opening through a rotating shaft, and an elastic clamping part cooperating with the triangular rotating block is arranged on the side of the threading barrel away from the conductive block.

[0013] As a further solution of the present invention: the elastic clamping member includes an insulating clamping plate, a guide column and a connecting spring. The insulating clamping plate is parallel to the conductive block. Guide holes are provided at both ends of the insulating clamping plate. Two guide columns are provided and fixedly connected to the inner wall of the threading barrel. The two guide columns are respectively inserted into the corresponding guide holes. The insulating clamping plate is connected to the inner wall of the threading barrel by a connecting spring, and the triangular rotating block cooperates with the insulating clamping plate.

[0014] As a further solution of the present invention: the winding sealing mechanism includes an annular groove, an elastic rubber ring, a pull rope and a winding column, the annular groove is opened on the inner wall of the hollow connecting column, the elastic rubber ring is connected in the annular groove, the pull rope is passed through the annular groove, the winding column is rotatably connected to the hollow connecting column, and one end of the winding column passes through the outside of the hollow connecting column, and the other end passes through the annular groove, the two ends of the pull rope are connected to the end of the winding column, the end of the winding column on the outside of the hollow connecting column is connected with the sliding sleeve through a linkage mechanism, and a conical sealing sleeve is also connected to the inner wall of the hollow connecting column.

[0015] As a further solution of the present invention: the linkage mechanism includes a linkage friction rod and a friction wheel, the linkage friction rod is fixedly connected to the sliding sleeve, the friction wheel is coaxially fixedly connected to the winding column, and the linkage friction rod cooperates with the friction wheel, the side of the hollow connecting column close to the sliding sleeve is fixedly connected with a guide rod, the sliding sleeve is provided with a sliding cavity, and the guide rod slides and penetrates into the sliding cavity.

[0016] As a further solution of the present invention: the nitrogen charging mechanism also includes an elastic air storage bag and a connecting channel, the elastic air storage bag is connected to the outer wall of the hollow connecting column in a surrounding manner, the connecting channel is opened in the side wall of the hollow connecting column, and one end of the connecting channel is connected to the elastic air storage bag, and the other end is connected to the inside of the hollow connecting column, and the opening and closing switch is arranged in the connecting channel.

[0017] As a further solution of the present invention: the opening and closing switch member includes a sliding sealing block, a through-opening and a receiving groove, the receiving groove is provided on the inner wall on one side of the connecting channel, one end of the sliding sealing block is slidably connected in the receiving groove, and a limiting spring is connected between the sliding sealing block and the receiving groove, the other end of the sliding sealing block is fitted in the connecting channel, the through-opening is provided on the inner wall on the other side of the connecting channel, the through-opening is aligned with the sliding sealing block, and a top block aligned with the through-opening is fixedly provided on the sliding sleeve.

[0018] A method for preparing a high-power connector for a new energy vehicle, the specific steps are as follows:

[0019] The first step is to select a columnar insulating material, dig out a cavity at one end of the columnar insulating material to form a threading barrel, process threads on the outer wall of the other end of the columnar insulating material to obtain a threaded connection column, and open a threading groove in the threaded connection column so that the connector plug is fixedly connected to the end of the threaded connection column, fix the conductive block in the threading barrel, and connect the conductive block to the connector plug through a wire;

[0020] The second step is to install a rotating pushing mechanism on the threaded connection column, and to install a sliding pressing mechanism that matches the rotating pushing mechanism on the threading barrel;

[0021] The third step is to process and prepare the hollow connecting column, and install the winding sealing mechanism on the hollow connecting column, and make the winding sealing mechanism cooperate with the sliding clamping mechanism. At the same time, the nitrogen filling mechanism is filled with nitrogen and installed on the hollow connecting column. Finally, the hollow connecting column is fixedly connected to the threading barrel.

[0022] Beneficial effects of the present invention:

[0023] The present invention rotates the operating ring to make the threaded sleeve move laterally along the threaded connecting column, so that the threaded sleeve pushes the sliding sleeve onto the hollow connecting column. In this process, the sliding sleeve squeezes the triangular rotating block, and the high-power metal end inserted in the threading barrel is compressed and fixed by the triangular rotating block. At the same time, the sliding sleeve also drives the linkage friction rod to act as the friction wheel, so that the friction wheel drives the winding column to rotate and wind the draw rope. The draw rope tightens the elastic rubber ring on the high-power cable body, thereby achieving double fixation, ensuring that the cable connection is stable, and the operation is convenient and effective.

[0024] The retracting rope of the present invention allows the elastic rubber ring to be tightened on the main body of the high-power cable, so that the gap between the hollow connecting column and the high-power cable is sealed, thereby sealing the internal space of the threading barrel, preventing external impurities or moisture from entering the interior and contacting the conductive end of the cable. When the sliding sleeve moves laterally and contacts the hollow connecting column, the sliding sleeve also allows the sliding blocking block to separate from the connecting channel through the top block, so that the inert gas in the elastic air storage bag enters the internal space of the threading barrel through the connecting channel, and relies on the inert characteristics of the inert gas to reduce the risk of sparks and combustion at the metal end of the high-power cable.

[0025] The present invention only needs to act on the sliding sleeve to move it, so that the elastic rubber ring can seal the space of the threading barrel and realize the inflation of the inert gas. The sealing is realized first and then the inflation is performed. No manual control is required and the operation is completed automatically in sequence, thereby improving the convenience of the installation operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the overall front cross-sectional structure of the present invention;

[0029] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0030] Figure 4 It is a schematic diagram of the structure when the threaded rotating sleeve in the present invention abuts the sliding sleeve against the hollow connecting column;

[0031] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure at C in the middle;

[0032] Figure 6 It is a schematic diagram of the top view of the structure when the top block pushes the sliding blocking block out of the connecting channel in the present invention;

[0033] Figure 7 yes Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0034] Figure 8 It is a schematic cross-sectional structure diagram of the cooperative connection between the draw cord and the elastic rubber ring in the present invention;

[0035] Fig. 9 It is a schematic diagram of a top view of the structure in which the insulating clamping plate in the present invention fixes and presses the end of the high-power cable onto the conductive block;

[0036] Fig.10 yes Fig. 9 Schematic diagram of the enlarged structure at D in the middle.

[0037] In the figure: 1. Connector plug; 2. Connector socket; 3. Operating swivel; 4. Threaded connecting column; 5. Threaded swivel sleeve; 6. Sliding sleeve; 7. Movable opening; 8. Triangular swivel block; 9. Linked friction rod; 10. Friction wheel; 11. Hollow connecting column; 12. Elastic air storage bag; 13. Conductive block; 14. Sliding cavity; 15. Guide rod; 16. Telescopic connecting rod; 17. Top block; 18. Connecting channel; 19. Storage groove; 20. Through opening; 21. Limit spring; 22. Sliding blocking block; 23. Annular groove; 24. Elastic rubber ring; 25. Draw rope; 26. Winding column; 27. Insulating splint; 28. Connecting spring; 29. ​​Guide column; 30. Guide hole; 31. Conical sealing sleeve; 32. High-power cable; 33. Threading barrel. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] like Figure 1-Figure 10As shown, a high-power connector for new energy vehicles includes a connector plug 1 and a connector socket 2. The connector plug 1 is used to connect a high-power cable 32. The connector socket 2 is used to be fixed on relevant electrical components inside the vehicle and connected to the cable. The connector socket 2 can also be connected to the corresponding cable in the manner of connecting the connector plug 1 to the high-power cable 32. The following specifically describes the connection and matching relationship between the connector plug 1 and the high-power cable 32. A threaded connection column 4 is fixedly connected to one side of the connector plug 1. A threading barrel 33 is fixedly connected to the end of the threaded connection column 4 away from the connector plug 1. A conductive block 13 electrically connected to the connector plug 1 is fixedly connected to one side of the threading barrel 33. The wire between the conductive block 13 and the connector plug 1 is passed through the threaded connection column 4. It should be noted here that the threaded connection column 4 itself is a solid body, and only the wire groove is opened at the position where the wire is passed through; when the high-power cable 32 is connected to the connector plug 1, the exposed metal end is inserted into the threading barrel 33, and then the exposed metal end is pressed against the conductive block 13 to achieve connection with the connector plug 1. The end of the threading barrel 33 away from the connector plug 1 is coaxially fixedly connected with the hollow connection column 11. The outer diameter of the hollow connection column 11 is larger than the outer diameter of the threading barrel 33, and the two are connected to each other; the connector also includes a sliding pressing mechanism, a rotating pushing mechanism, a winding sealing mechanism and a nitrogen filling mechanism;

[0040] The sliding pressing mechanism includes a sliding sleeve 6 and a rotating extrusion mechanism. The sliding sleeve 6 is slidingly sleeved on the outer wall of the threading barrel 33. The rotating extrusion mechanism is arranged on one side of the threading barrel 33, and the rotating extrusion mechanism cooperates with the sliding sleeve 6.

[0041] The rotary pushing mechanism is rotatably arranged outside the threaded connection column 4, and the rotary pushing mechanism cooperates with the sliding sleeve 6. The rotary pushing mechanism is used to push the sliding sleeve 6 to slide laterally along the threading barrel 33 close to the hollow connection column 11, and the sliding sleeve 6 squeezes the rotary squeezing mechanism, so that the rotary squeezing mechanism presses the exposed metal end of the high-power cable 32 in the threading barrel 33 onto the conductive block 13 to achieve connection;

[0042] The winding sealing mechanism is arranged on the hollow connecting column 11, and a linkage mechanism is connected between the winding sealing mechanism and the sliding sleeve 6. When the sliding sleeve 6 slides along the threading barrel 33 and approaches the hollow connecting column 11, the linkage mechanism drives the winding sealing mechanism to move, and the winding sealing mechanism winds the high-power cable 32 passing through the hollow connecting column 11, and seals the gap between the high-power cable 32 and the hollow connecting column 11, so that a relatively sealed space is formed inside the threading barrel 33.

[0043] The nitrogen charging mechanism is cooperatively arranged on the hollow connecting column 11 , and the nitrogen charging mechanism is communicated with the interior of the threading barrel 33 , and the nitrogen charging mechanism includes an opening and closing switch member that cooperates with the sliding sleeve 6 .

[0044] After the sleeve 6 relies on the linkage mechanism to make the winding and sealing mechanism run to wind and seal the position where the high-power cable 32 is passed through the hollow connecting column 11, the linkage mechanism also opens the opening and closing switch, thereby facilitating the nitrogen filling mechanism to fill nitrogen into the internal space of the sealed wire barrel 33. The inert gas properties of nitrogen can effectively prevent spark combustion at the power connection end of the high-power cable 32, thereby improving safety.

[0045] In some specific embodiments, such as Figure 2 As shown, in order to facilitate the lateral movement of the sliding sleeve 6, the rotary pushing mechanism includes a threaded sleeve 5, which is sleeved on the outer wall of the threaded connecting column 4, and the threaded sleeve 5 is threadedly connected to the threaded connecting column 4. When it is necessary to push the sliding sleeve 6 to lateral movement and to abut against the hollow connecting column 11 to keep it fixed, the threaded sleeve 5 is rotated and moved to make the threaded sleeve 5 move along the threaded connecting column 4 toward the threading barrel 33. During this process, the threaded sleeve 5 pushes the sliding sleeve 6, and finally the threaded sleeve 5 and the hollow connecting column 11 jointly clamp the sliding sleeve 6. At this time, the sliding sleeve 6 also effectively squeezes the rotary squeezing mechanism, so that the rotary squeezing mechanism fixes and presses the metal end of the high-power cable 32 onto the conductive block 13.

[0046] In some specific embodiments, when the threaded sleeve 5 pushes the sliding sleeve 6 to move to the position of the hollow connecting column 11, the diameter of the end of the threaded connecting column 4 close to the connector plug 1 is smaller, which is not conducive to the safe use of the end of the connector plug 1. Therefore, it is necessary to rotate and sleeve an operating swivel 3 on the end of the threaded connecting column 4 away from the hollow connecting column 11. The inner circle of the operating swivel 3 is distributed with annular grooves, and the end of the threaded connecting column 4 is provided with a pulley matching the annular grooves, which can ensure that the operating swivel 3 can only rotate and cannot move laterally, that is, it is maintained at the end position of the threaded connecting column 4. A telescopic connecting rod 16 is connected between the operating swivel 3 and the threaded sleeve 5. The telescopic connecting rods 16 are distributed in pairs. When it is necessary to rotate and move the threaded sleeve 5, the operating swivel 3 is directly rotated, and the operating swivel 3 drives the threaded sleeve 5 to rotate. Since the telescopic connecting rod 16 is telescopic, it is convenient for the threaded sleeve 5 to move laterally, and since the operating swivel 3 is raised by a circle, a certain degree of protection is achieved for the connector plug 1.

[0047] In some specific embodiments, in combination Figure 1 , Fig. 9 and Fig.10 As shown, the rotary extrusion mechanism includes a movable opening 7 and a triangular rotating block 8. The movable opening 7 is opened on one side of the threading barrel 33. The triangular rotating block 8 is arranged in the movable opening 7, and one end of the triangular rotating block 8 is rotatably connected to the inner wall of the movable opening 7 through a rotating shaft. An elastic clamping member cooperating with the triangular rotating block 8 is arranged on the side of the threading barrel 33 away from the conductive block 13.

[0048] Among them, the elastic clamping part includes an insulating clamping plate 27, a guide column 29 and a connecting spring 28. The insulating clamping plate 27 is parallel to the conductive block 13. Guide holes 30 are provided at both ends of the insulating clamping plate 27. Two guide columns 29 are provided and fixedly connected to the inner wall of the threading barrel 33. One end of the two guide columns 29 are respectively inserted into the corresponding guide holes 30. The insulating clamping plate 27 is connected to the inner wall of the threading barrel 33 by the connecting spring 28, and the triangular rotating block 8 cooperates with the insulating clamping plate 27.

[0049] When the connecting spring 28 is in its original state, the triangular rotating block 8 is limited by the insulating splint 27 and one side of the bevel is exposed outside the movable opening 7. When the sliding sleeve 6 slides along the threading tube 33 toward the hollow connecting column 11, the sliding sleeve 6 squeezes the triangular rotating block 8, causing the triangular rotating block 8 to rotate toward the inside of the threading tube 33. The triangular rotating block 8 pushes the insulating splint 27, and the insulating splint 27 stretches the connecting spring 28 and slides along the guide column 29, thereby fixing the metal end of the high-power cable 32 to the conductive block 13, thereby achieving a fixed connection at the end of the high-power cable 32.

[0050] In some specific embodiments, in combination Figure 2 , Figure 7 and Figure 8 As shown, the winding sealing mechanism includes an annular groove 23, an elastic rubber ring 24, a drawstring 25 and a winding column 26. The annular groove 23 is formed on the inner wall of the hollow connecting column 11. The elastic rubber ring 24 is connected in the annular groove 23. The elastic rubber ring 24 protrudes toward the hollow position inside the hollow connecting column 11. When the high-power cable 32 passes through the hollow connecting column 11, the elastic rubber ring 24 surrounds and wraps the high-power cable 32. At the same time, the elastic rubber ring 24 also closes the annular groove 23. The drawstring 25 is inserted in the annular groove 23. The winding column 26 rotates It is dynamically connected to the hollow connecting column 11, and one end of the winding column 26 passes through the outside of the hollow connecting column 11, and the other end passes through the annular groove 23. The two ends of the pull rope 25 are crossed and connected to the end of the winding column 26. The end of the winding column 26 on the outside of the hollow connecting column 11 is connected to the sliding sleeve 6 through a linkage mechanism. A conical sealing sleeve 31 is also connected to the inner wall of the hollow connecting column 11. When the high-power cable 32 is inserted into the threading barrel 33, the elastic rubber ring 24 and the conical sealing sleeve 31 together tightly wrap the outer wall of the high-power cable 32 to ensure sealing.

[0051] In some specific embodiments, the linkage mechanism includes a linkage friction rod 9 and a friction wheel 10. The linkage friction rod 9 is fixedly connected to the sliding sleeve 6 through a bracket and is in a horizontal position. The friction wheel 10 is coaxially fixedly connected to the winding column 26, and the linkage friction rod 9 cooperates with the friction wheel 10. Here, in order to facilitate effective transmission, the linkage friction rod 9 is a rack and the friction wheel 10 is a gear. The two are meshed with each other. In order to avoid separation of the linkage friction rod 9 and the friction wheel 10, a guide rod 15 is fixedly connected to one side of the hollow connecting column 11 close to the sliding sleeve 6. The guide rods 15 are distributed in pairs. A sliding cavity 14 is opened on the sliding sleeve 6, and the guide rod 15 slides and penetrates into the sliding cavity 14. In this way, the sleeve 6 can be prevented from rotating. When the sleeve 6 slides and contacts the hollow connecting column 11, the friction rod 9 is linked to move horizontally, thereby driving the friction wheel 10 to rotate, and the winding column 26 rotates. Since the draw rope 25 cooperates with the elastic rubber ring 24, and the two ends are cross-connected to the end of the winding column 26, the winding column 26 is wound around and tightened by the draw rope 25, and the draw rope 25 squeezes the elastic rubber ring 24, causing the elastic rubber ring 24 to be tightened on the outer wall of the high-power cable 32, thereby further fixing the high-power cable 32 and improving the sealing effect, preventing external water vapor impurities from entering the threading barrel 33, and also facilitating the subsequent filling of nitrogen.

[0052] In some specific embodiments, the nitrogen charging mechanism also includes an elastic air storage bag 12 and a connecting channel 18. The elastic air storage bag 12 is connected to the outer wall of the hollow connecting column 11 in a surrounding manner. Nitrogen or other inert gases are stored in the elastic air storage bag 12 in advance. The elastic air storage bag 12 is equipped with a one-way inflation valve. The connecting channel 18 is opened in the side wall of the hollow connecting column 11, and one end of the connecting channel 18 is connected to the elastic air storage bag 12, and the other end is connected to the inside of the hollow connecting column 11. The opening and closing switch is arranged in the connecting channel 18.

[0053] Among them, the opening and closing switch component includes a sliding blocking block 22, a through-opening 20 and a receiving groove 19. The receiving groove 19 is opened on the inner wall of one side of the connecting channel 18. One end of the sliding blocking block 22 is slidably connected in the receiving groove 19, and a limiting spring 21 is connected between the sliding blocking block 22 and the receiving groove 19. The other end of the sliding blocking block 22 is fitted in the connecting channel 18. The sliding blocking block 22 is used to block the connecting channel 18. The through-opening 20 is opened on the inner wall of the other side of the connecting channel 18. The through-opening 20 is aligned with the sliding blocking block 22. The width of the through-opening 20 is smaller than the width of the connecting channel 18. A top block 17 aligned with the through-opening 20 is fixedly arranged on the sliding sleeve 6.

[0054] When nitrogen is stored in the elastic air storage bag 12, the elastic air storage bag 12 is in an expanded state. When the sliding sleeve 6 slides and contacts the hollow connecting column 11, the top block 17 moves laterally with the sliding sleeve 6 and penetrates into the through-hole 20. The top block 17 blocks the through-hole 20, and the top block 17 pushes the sliding blocking block 22, thereby pushing the sliding blocking block 22 into the storage groove 19. In this way, the partition position of the connecting channel 18 is opened, and the elastic air storage bag 12 relies on elastic force to press out the stored nitrogen and fill it into the threading barrel 33 through the connecting channel 18. At this time, the gap between the hollow connecting column 11 and the high-power cable 32 is closed, thereby avoiding nitrogen leakage. Nitrogen relies on its inert gas properties to effectively reduce the risk of sparks at the exposed metal end of the high-power cable 32.

[0055] A method for preparing a high-power connector for a new energy vehicle, the specific steps are as follows:

[0056] Step 1: First, select a columnar insulating material, dig out a cavity at one end of the columnar insulating material to form a threading barrel 33, process threads on the outer wall of the other end of the columnar insulating material to obtain a threaded connection column 4, and open a threading groove in the threaded connection column 4, so that the connector plug 1 is fixedly connected to the end of the threaded connection column 4, and the conductive block 13 is fixed in the threading barrel 33, and the conductive block 13 and the connector plug 1 are connected through a wire;

[0057] Step 2: Install a rotating push mechanism on the threaded connection column 4, and install a sliding pressing mechanism that cooperates with the rotating push mechanism on the threading barrel 33;

[0058] The third step is to process and prepare the hollow connecting column 11, and install the winding sealing mechanism on the hollow connecting column 11, and make the winding sealing mechanism cooperate with the sliding clamping mechanism. At the same time, the nitrogen filling mechanism is filled with nitrogen and installed on the hollow connecting column 11. Finally, the hollow connecting column 11 is fixedly connected to the threading barrel 33.

[0059] In order to facilitate the understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution is briefly described in combination with specific application scenarios:

[0060] First, the exposed metal end of the high-power cable 32 is passed through the hollow connecting column 11 and into the threading barrel 33, and then the operating ring 3 is directly rotated, and the operating ring 3 drives the threaded sleeve 5 to rotate. Since the telescopic connecting rod 16 is telescopic, the threaded sleeve 5 can move laterally. In this way, the threaded sleeve 5 moves along the threaded connecting column 4 toward the threading barrel 33. During this process, the threaded sleeve 5 pushes the sliding sleeve 6, and finally the threaded sleeve 5 and the hollow connecting column 11 jointly clamp the sliding sleeve 6; and in the process of the sliding sleeve 6 sliding along the threading barrel 33 toward the hollow connecting column 11, the sliding sleeve 6 squeezes the triangular rotating block 8, causing the triangular rotating block 8 to rotate toward the inside of the threading barrel 33, and the triangular rotating block 8 pushes the insulating clamp 27, and the insulating clamp 27 stretches the connecting spring 28 and slides along the guide column 29, thereby fixing the metal end of the high-power cable 32 to the conductive block 13, thereby realizing a fixed connection at the end of the high-power cable 32.

[0061] And in the process that the sliding sleeve 6 slides and contacts the hollow connecting column 11, the linkage friction rod 9 moves horizontally, thereby driving the friction wheel 10 to rotate, so that the winding column 26 rotates, and since the pull rope 25 cooperates with the elastic rubber ring 24, and the two ends are cross-connected to the end of the winding column 26, the winding column 26 is wound and tightened by the pull rope 25, and the pull rope 25 squeezes the elastic rubber ring 24, causing the elastic rubber ring 24 to tighten on the outer wall of the high-power cable 32, thereby further fixing the high-power cable 32 and improving the sealing effect, preventing external water vapor impurities from entering the threading barrel 33.

[0062] And when the sliding sleeve 6 slides and contacts the hollow connecting column 11, the top block 17 moves horizontally synchronously with the sliding sleeve 6 and penetrates into the through-hole 20, and the top block 17 blocks the through-hole 20, and the top block 17 pushes the sliding blocking block 22, thereby pushing the sliding blocking block 22 into the storage groove 19, so that the partition position of the connecting channel 18 is opened, and the elastic air storage bag 12 relies on the elastic force to press out the stored nitrogen, and fills it into the threading barrel 33 through the connecting channel 18. At this time, the gap between the hollow connecting column 11 and the high-power cable 32 is closed, thereby avoiding nitrogen leakage, and nitrogen relies on its inert gas performance to effectively reduce the risk of sparks at the exposed metal end of the high-power cable 32.

[0063] Several embodiments of the present invention are described in detail above, but the embodiments of the present invention are not limited thereto and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A high-power connector for a new energy vehicle, comprising a connector plug (1) and a connector socket (2), wherein one side of the connector plug (1) is fixedly connected to a threaded connection column (4), an end of the threaded connection column (4) away from the connector plug (1) is fixedly connected to a threading barrel (33), an inner side of the threading barrel (33) is fixedly connected to a conductive block (13) electrically connected to the connector plug (1), and an end of the threading barrel (33) away from the connector plug (1) is coaxially fixedly connected to a hollow connection column (11), characterized in that: Also includes: A sliding clamping mechanism and a rotating pushing mechanism, the sliding clamping mechanism comprising a sliding sleeve (6) and a rotating extrusion mechanism, the sliding sleeve (6) being slidingly mounted on the outer wall of the threading barrel (33), the rotating extrusion mechanism being arranged on one side of the threading barrel (33), and the rotating extrusion mechanism being matched with the sliding sleeve (6); the rotating pushing mechanism being rotatably mounted on the outside of the threaded connection column (4), and the rotating pushing mechanism being matched with the sliding sleeve (6); A winding sealing mechanism and a nitrogen filling mechanism, wherein the winding sealing mechanism is arranged on the hollow connecting column (11), and a linkage mechanism is connected between the winding sealing mechanism and the sliding sleeve (6); the nitrogen filling mechanism is arranged on the hollow connecting column (11), and the nitrogen filling mechanism is connected to the inside of the threading barrel (33), and the nitrogen filling mechanism includes an opening and closing switch member that cooperates with the sliding sleeve (6); The rotary pushing mechanism comprises a threaded sleeve (5), the threaded sleeve (5) being sleeved on the outer wall of the threaded connection column (4), and the threaded sleeve (5) being threadedly connected to the threaded connection column (4); An end of the threaded connection column (4) away from the hollow connection column (11) is rotatably sleeved with an operating swivel (3), and a telescopic connecting rod (16) is connected between the operating swivel (3) and the threaded swivel sleeve (5); The rotary extrusion mechanism comprises a movable opening (7) and a triangular rotating block (8); the movable opening (7) is provided on one side of the threading barrel (33); the triangular rotating block (8) is arranged in cooperation with the movable opening (7); one end of the triangular rotating block (8) is rotatably connected to the inner wall of the movable opening (7) via a rotating shaft; and an elastic clamping piece cooperating with the triangular rotating block (8) is arranged on a side of the threading barrel (33) away from the conductive block (13).

2. A high-power connector for new energy vehicles according to claim 1, characterized in that: The elastic clamping member comprises an insulating clamping plate (27), a guide column (29) and a connecting spring (28); the insulating clamping plate (27) and the conductive block (13) are parallel to each other; guide holes (30) are provided at both ends of the insulating clamping plate (27); two guide columns (29) are provided and fixedly connected to the inner wall of the threading barrel (33); the two guide columns (29) are respectively inserted into the corresponding guide holes (30); the insulating clamping plate (27) and the inner wall of the threading barrel (33) are connected via the connecting spring (28); and the triangular rotating block (8) cooperates with the insulating clamping plate (27).

3. A high-power connector for new energy vehicles according to claim 1, characterized in that: The winding sealing mechanism comprises an annular groove (23), an elastic rubber ring (24), a drawstring rope (25) and a winding column (26); the annular groove (23) is formed on the inner wall of the hollow connecting column (11); the elastic rubber ring (24) is connected in cooperation with the annular groove (23); the drawstring rope (25) is inserted in cooperation with the inside of the annular groove (23); the winding column (26) is rotatably connected to the hollow connecting column (11); one end of the winding column (26) passes through the outside of the hollow connecting column (11) and the other end passes through the annular groove (23); both ends of the drawstring rope (25) are connected to the ends of the winding column (26); one end of the winding column (26) located outside the hollow connecting column (11) is connected in cooperation with the sliding sleeve (6) through a linkage mechanism; and a conical sealing sleeve (31) is also connected to the inner wall of the hollow connecting column (11).

4. A high-power connector for new energy vehicles according to claim 3, characterized in that: The linkage mechanism comprises a linkage friction rod (9) and a friction wheel (10); the linkage friction rod (9) is fixedly connected to the sliding sleeve (6); the friction wheel (10) is coaxially fixedly connected to the winding column (26); the linkage friction rod (9) and the friction wheel (10) cooperate with each other; a guide rod (15) is fixedly connected to a side of the hollow connecting column (11) close to the sliding sleeve (6); a sliding cavity (14) is provided on the sliding sleeve (6), and the guide rod (15) slides and penetrates into the sliding cavity (14).

5. A high-power connector for new energy vehicles according to claim 1, characterized in that: The nitrogen filling mechanism further comprises an elastic air storage bag (12) and a connecting passage (18); the elastic air storage bag (12) is connected to the outer wall of the hollow connecting column (11) in a surrounding manner; the connecting passage (18) is opened in the side wall of the hollow connecting column (11); one end of the connecting passage (18) is in communication with the elastic air storage bag (12) and the other end is in communication with the interior of the hollow connecting column (11); the opening and closing switch member is arranged in the connecting passage (18).

6. A high-power connector for new energy vehicles according to claim 5, characterized in that: The opening and closing switch member comprises a sliding blocking block (22), a through opening (20) and a receiving groove (19); the receiving groove (19) is provided on an inner wall on one side of the connecting channel (18); one end of the sliding blocking block (22) is slidably connected in the receiving groove (19); a limit spring (21) is connected between the sliding blocking block (22) and the receiving groove (19); the other end of the sliding blocking block (22) is fitted in the connecting channel (18); the through opening (20) is provided on the inner wall on the other side of the connecting channel (18); the through opening (20) and the sliding blocking block (22) are aligned and distributed; and a top block (17) aligned and matched with the through opening (20) is fixedly provided on the sliding sleeve (6).

7. A method for preparing a high-power connector for new energy vehicles as claimed in claim 1, characterized in that: The specific steps are as follows: The first step is to select a columnar insulating material, dig out a cavity at one end of the columnar insulating material to form a threading barrel (33), process threads on the outer wall of the other end of the columnar insulating material to obtain a threaded connection column (4), and open a threading groove in the threaded connection column (4), so that the connector plug (1) is fixedly connected to the end of the threaded connection column (4), the conductive block (13) is fixed in the threading barrel (33), and the conductive block (13) and the connector plug (1) are connected through a wire; Step 2: Install a rotating push mechanism on the threaded connection column (4), and install a sliding pressing mechanism that cooperates with the rotating push mechanism on the threading barrel (33); The third step is to process and prepare the hollow connecting column (11), and install a winding sealing mechanism on the hollow connecting column (11), and make the winding sealing mechanism cooperate with the sliding pressing mechanism, and at the same time, fill the nitrogen filling mechanism with nitrogen and install it on the hollow connecting column (11), and finally fix the hollow connecting column (11) on the threading barrel (33).

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