Shielded sealed high speed connector

Abstract

The application discloses a shielded and sealed high-speed connector, and belongs to the technical field of connectors. The high-speed connector comprises a socket assembly and a plug assembly. The socket assembly comprises a socket main body, a plurality of plug-in areas are arranged in the socket main body, and a plurality of signal fish-eye needles in an integrated structure are arranged in each plug-in area. The plug assembly comprises a plug main body, a plurality of plug-in heads in one-to-one matching relationship are arranged on the plug main body, a plurality of high-speed spring piece assemblies in contact with the signal fish-eye needles are arranged on each plug-in head, and a plurality of vibration shielding rings are arranged in the inside of each plug-in area in a ring shape. The plurality of vibration shielding rings are in close contact with the peripheral side walls of the plug-in heads. In the application, the signal fish-eye needles in the socket assembly are arranged in an integrated structure, and a plurality of vibration shielding rings are arranged, so that the reliability of the whole high-speed connector is greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of connector technology, and in particular relates to a shielded and sealed high-speed connector. Background Technology

[0002] High-speed connectors are widely used in communication technology. They are a common type of connector used in large communication equipment, ultra-high performance servers and supercomputers, industrial computers, and high-end storage devices. Their main function is to connect single boards and backplanes, with the single boards and backplanes forming a 90-degree vertical structure, to transmit high-speed differential signals or single-ended signals and to transmit large currents.

[0003] With the continuous improvement of communication technology, the requirements for data transmission rate and quality are also increasing. Currently available high-speed connectors suffer from significant crosstalk between signals due to limitations in their internal structures, affecting data transmission quality.

[0004] On the other hand, the contact components in traditional high-speed connectors are generally two-piece structures, formed by fisheye punching and then welded or press-fitted to the socket. The strength of the welded or press-fitted parts is easily affected by strong vibration environments, resulting in insufficient tightness between the components. During the connector insertion process, this may cause displacement or deformation between the components, affecting the consistency of the differential pair impedance. Summary of the Invention

[0005] To address the aforementioned problems in the prior art, this invention aims to provide a shielded and sealed high-speed connector. This solves the problem that the contact components in traditional high-speed connectors are generally two-piece structures, formed by fisheye punching and then welded or press-fitted to the socket. The strength of the welded or press-fitted parts is easily affected by strong vibration environments, which may cause displacement or deformation between parts during connector insertion, thereby affecting the reliability of the connector.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows:

[0007] A shielded and sealed high-speed connector is provided, which includes a socket assembly and a plug assembly; the socket assembly includes a socket body, and multiple mating areas are provided in the socket body, and multiple signal fisheye pins are provided in each mating area; each signal fisheye pin includes a mating end and a fisheye end fixedly connected to the mating end, and the mating end and the fisheye end are an integral structure.

[0008] The plug assembly includes a plug body, on which a number of plugs are provided to match multiple insertion areas. The plugs and insertion areas are in a one-to-one matching relationship. Each plug is provided with multiple high-speed spring assemblies, and each high-speed spring assembly includes multiple pins for contacting multiple insertion ends.

[0009] Each insertion area has multiple vibration shielding rings arranged circumferentially inside; the multiple vibration shielding rings are in close contact with the four sides of the insertion joint.

[0010] Furthermore, a fixing plate is fixedly installed in each plug-in area, and multiple mounting holes are provided on each fixing plate. A signal fisheye needle is installed in each mounting hole. The plug-in end has a stepped round shaft structure and is fixedly connected to the mounting hole. The fisheye end is fixedly connected to the bottom end of the plug-in end and passes through the mounting hole to be located outside the fixing plate.

[0011] Furthermore, each vibration shielding ring includes a vertical plate, the top of which is connected to a cantilever plate. The cantilever plate is inclined towards the bottom of the vertical plate, and the bottom end of the cantilever plate is provided with a vertical direct contact plate that abuts against the four sides of the connector. The bottom of the vertical plate is provided with a locking member, which has a "U" shaped structure.

[0012] Each insertion area has a ring-shaped mounting groove on its top inner wall, and multiple vibration shielding rings are set in the ring-shaped mounting groove; the top and bottom of the vertical plate are in close contact with the two side walls of the ring-shaped mounting groove, and the end face of the vertical plate is in contact with the bottom surface of the ring-shaped mounting groove.

[0013] Below the annular mounting groove, there is also a fixing ring with a fixed protrusion; the locking plate in each vibration shielding ring is engaged with the fixing ring.

[0014] Furthermore, each connector has an internal insert plate fixing component. Each insert plate fixing component has a cuboid structure. Multiple partitions are evenly spaced along the length of the upper end face of the insert plate fixing component. A high-speed spring assembly is provided between two adjacent partitions.

[0015] The upper surface of the insert plate fastener located between two adjacent partitions has multiple fixing holes, which are evenly spaced along the width of the insert plate fastener; each fixing hole contains a pin.

[0016] Furthermore, each high-speed reed assembly includes a sheet-like mounting plate disposed between two adjacent partitions, and the sheet-like mounting plate has multiple pins inside; each pin includes a round pin and a fisheye head; the multiple round pins are evenly spaced and fixedly disposed on the lower end face of the sheet-like mounting plate; the multiple fisheye heads are evenly spaced and fixedly disposed on the side wall of the sheet-like mounting plate; a bent metal spring is disposed between the round pin and the fisheye head.

[0017] Furthermore, a locking block is provided on each side wall of each sheet mounting plate, and each locking block is located near the lower end of the sheet mounting plate; each locking block has a wedge-shaped block structure with the tip facing outwards.

[0018] Each insert fastener has a connecting plate vertically installed on both sides of its top width direction, and the length direction of each connecting plate is in the same direction as the length direction of the insert fastener; the inner sidewalls of the two connecting plates are provided with multiple locking grooves that cooperate with the locking blocks.

[0019] Furthermore, each sheet-like mounting plate has a first locking block and a second locking block on its top two sides respectively. The first locking block has a cuboid structure, and its lower end face is fixedly connected to the lower end face of the sheet-like mounting plate. The width of the first locking block is smaller than the width of the sheet-like mounting plate. A first stop block is fixedly provided on the upper end face of the first locking block, and the width of the first stop block is larger than the width of the first locking block.

[0020] The lower end face of the second locking block is fixedly connected to the lower end face of the sheet mounting plate, and a second stop is provided on the upper end face of the second locking block; the width of the second stop is greater than the width of the second locking block.

[0021] A locking plate is provided on the top of multiple sheet-like mounting plates, and multiple sets of locking holes are evenly spaced on the locking plate; the multiple sets of locking holes are matched one-to-one with the multiple sheet-like mounting plates;

[0022] The single set of locking holes includes a first locking strip hole and a second locking strip hole; one end of the first locking strip hole passes through one side of the locking plate, and a first locking block is disposed inside the first locking block; the diameter of the first locking strip hole is greater than the width of the first locking block and less than the width of the first stop;

[0023] The second locking strip hole mates with the second locking block; the second locking strip hole includes a large-diameter strip hole and a small-diameter strip hole that are interconnected; the diameter of the large-diameter strip hole is larger than that of the second stop block; the diameter of the small-diameter strip hole is larger than that of the second locking block but smaller than that of the second stop block.

[0024] Furthermore, both the socket body and the plug body have a rectangular structure when viewed from above. Two positioning holes are provided at the diagonal of the upper end face of the socket body; two positioning pins are provided at the diagonal of the lower end face of the plug body, which respectively mate with the two positioning holes.

[0025] The beneficial effects of the present invention are as follows: 1. The shielded and sealed high-speed connector of the present invention sets the signal fisheye pin in the socket assembly as an integrated structure. The integrated design and processing of the signal fisheye pin has good structural integrity, improves the structural strength of the signal fisheye pin itself and improves its impact resistance. It solves the problem that the contact parts in traditional high-speed connectors are generally two-piece structures, with the fisheye punched and then welded or press-fitted to the socket. The strength of the welded or press-fitted parts is easily affected by strong vibration environment, thereby greatly improving the reliability of the entire high-speed connector.

[0026] 2. In the shielded and sealed high-speed connector of the present invention, after the socket assembly and the plug assembly are plugged in, multiple vibration shielding rings in the socket assembly abut against the four sides of the plug in the plug assembly, ensuring the connection between the socket assembly and the plug assembly is stable, and further significantly improving the reliability of the entire high-speed connector; at the same time, since multiple vibration shielding rings are installed inside the plugging area, it is suitable for installation in small space structures and can be applied to smaller connector structures.

[0027] 3. A shielded and sealed high-speed connector of the present invention comprises connecting plates vertically arranged on both sides of the insert fixing member, with multiple locking grooves formed on the connecting plates, and locking blocks provided on each plate mounting plate. Through the cooperation of the locking blocks and locking grooves, the bottom of the multi-plate high-speed spring assembly is fixedly connected to each plug. At the same time, a first locking block and a second locking block are provided on the top of each plate mounting plate, and a separate locking plate is provided. Multiple sets of locking holes on the locking plate cooperate with the first locking block and the second locking block of each plate mounting plate, thereby connecting the top of the multi-plate high-speed spring assembly into one piece and improving the installation stability of the top of the multi-plate high-speed spring assembly.

[0028] 4. In the shielded and sealed high-speed connector of the present invention, multiple high-speed spring assemblies are detachably connected to each plug in the plug assembly, which realizes the rapid assembly, replacement and maintenance of a single high-speed spring assembly and improves the assembly, replacement and maintenance efficiency of the entire high-speed connector. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of a shielded and sealed high-speed connector.

[0030] Figure 2 This is a schematic diagram of a single signal fisheye needle.

[0031] Figure 3 This is a cross-sectional structural diagram of the socket body.

[0032] Figure 4 This is a cross-sectional view of the plug body.

[0033] Figure 5 This is a structural schematic diagram of the insert plate fixing component.

[0034] Figure 6 This is a schematic diagram of a single high-speed reed assembly.

[0035] Figure 7 This is a schematic diagram of the installation structure of the locking plate and the single high-speed spring assembly.

[0036] The components are as follows: 1. Socket assembly; 2. Plug assembly; 3. Socket body; 4. Plug area; 5. Signal fisheye pin; 6. Plug end; 7. Fisheye end; 8. Plug body; 9. Plug connector; 10. High-speed spring assembly; 11. Vibration shielding ring; 12. Fixing plate; 13. Mounting hole; 14. Vertical plate; 15. Cantilever plate; 16. Vertical direct contact plate; 17. Snap-fit ​​component; 18. Annular mounting groove; 19. Fixing ring; 20. Plug plate fixing component; 21. Partition plate. 22. Fixing hole; 23. Sheet mounting plate; 24. Insertion round pin; 25. Insertion fisheye head; 26. Bending metal spring; 27. Locking block; 28. Connecting plate; 29. ​​Locking groove; 30. First locking block; 31. Second locking block; 32. First stop block; 33. Second stop block; 34. Locking plate; 35. Locking hole; 36. First locking strip hole; 37. Large diameter strip hole; 38. Small diameter strip hole; 39. Positioning hole; 40. Positioning pin. Detailed Implementation

[0037] The specific embodiments of the present invention are described below to enable those skilled in the art to understand the present invention. However, it should be understood that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, various changes are obvious as long as they are within the spirit and scope of the present invention as defined and determined by the appended claims. All inventions utilizing the concept of the present invention are protected.

[0038] like Figure 1 and 2 As shown, the present invention provides a shielded and sealed high-speed connector, which includes a socket assembly 1 and a plug assembly 2; the socket assembly 1 includes a socket body 3, and a plurality of insertion areas 4 are provided in the socket body 3, and a plurality of signal fisheye pins 5 are provided in each insertion area 4; each signal fisheye pin 5 includes a insertion end 6 and a fisheye end 7 fixedly connected to the insertion end 6, and the insertion end 6 and the fisheye end 7 are an integral structure.

[0039] By setting the signal fisheye pin 5 in the socket assembly 1 as an integrated structure, the integrated design and processing of the signal fisheye pin 5 solves the problem that the contact components in traditional high-speed connectors are generally two-piece structures, with the fisheye pin being punched and then welded or press-fitted to the socket. The strength of the welded or press-fitted parts is easily affected by strong vibration environments, thereby greatly improving the reliability of the entire high-speed connector.

[0040] The plug assembly 2 includes a plug body 8, on which a number of plugs 9 are provided to match a plurality of plug areas 4. The plugs 9 and the plug areas 4 are in a one-to-one matching relationship. Each plug 9 is provided with a plurality of high-speed spring assemblies 10, and each high-speed spring assembly 10 includes a plurality of pins for contacting a plurality of plug ends 6.

[0041] like Figure 1 and Figure 3 As shown, each insertion area 4 has multiple vibration shielding rings 11 arranged circumferentially inside; the multiple vibration shielding rings 11 are in close contact with the four sides of the insertion joint 9.

[0042] After the socket assembly 1 and the plug assembly 2 are plugged in, the multiple vibration shielding rings 11 in the socket assembly 1 abut against the four sides of the plug 9 in the plug assembly 2, ensuring the connection between the socket assembly 1 and the plug assembly 2 is stable, and further greatly improving the reliability of the entire high-speed connector; at the same time, since the multiple vibration shielding rings 11 are installed inside the plugging area 4, they are suitable for installation in small space structures and can be used for smaller connector structures.

[0043] Specifically, in order to achieve accurate docking between the socket assembly 1 and the plug assembly 2, the top view projection of the socket body 3 and the plug body 8 are both rectangular structures. Two positioning holes 39 are provided at the diagonal of the upper end face of the socket body 3; two positioning pins 40 are provided at the diagonal of the lower end face of the plug body 8, which respectively cooperate with the two positioning holes 39.

[0044] In this embodiment, as Figure 3 As shown, in one specific embodiment of fixing multiple signal fisheye pins 5, a fixing plate 12 is fixedly installed in each insertion area 4, and multiple mounting holes 13 are provided on each fixing plate 12. A signal fisheye pin 5 is installed in each mounting hole 13. The insertion end 6 has a stepped round shaft structure and is fixedly connected to the mounting hole 13. The fisheye end 7 is fixedly connected to the bottom end of the insertion end 6 and passes through the mounting hole 13 and is located outside the fixing plate 12.

[0045] As a specific implementation method and fixing method of the vibration shielding ring 11, each vibration shielding ring 11 includes a vertical plate 14, a cantilever plate 15 connected to the top of the vertical plate 14, the cantilever plate 15 is inclined towards the bottom of the vertical plate 14, and a vertical direct contact plate 16 is provided at the bottom of the cantilever plate 15 to abut against the four sides of the plug 9; a locking member 17 is provided at the bottom of the vertical plate 14, and the locking plate has a "U" shaped structure.

[0046] Each insertion area 4 has a ring-shaped mounting groove 18 circumferentially arranged on the top inner wall, and multiple vibration shielding rings 11 are arranged in the ring-shaped mounting groove 18; the top and bottom of the vertical plate 14 are in close contact with the two side walls of the ring-shaped mounting groove 18 respectively, and the end face of the vertical plate 14 is in contact with the bottom surface of the ring-shaped mounting groove 18.

[0047] Below the annular mounting groove 18, there is also a fixing ring 19 with a fixed protrusion; the locking plate in each vibration shielding ring 11 is engaged with the fixing ring 19.

[0048] like Figure 1 and Figures 4-6 As shown, in order to fix multiple high-speed spring assemblies 10 onto the connector 9, each connector 9 is provided with a plate fixing member 20 inside. Each plate fixing member 20 is a cuboid structure. Multiple partitions 21 are evenly arranged at intervals along its own length on the upper end surface of the plate fixing member 20. A high-speed spring assembly 10 is arranged between two adjacent partitions 21.

[0049] The upper surface of the insert plate fastener 20 located between two adjacent partition plates 21 is provided with multiple fixing holes 22, which are evenly spaced along the width direction of the insert plate fastener 20; a pin is fixedly installed in each fixing hole 22.

[0050] Furthermore, as a specific arrangement of the single high-speed reed assembly 10, each high-speed reed assembly 10 includes a sheet-like mounting plate 23 disposed between two adjacent partitions 21. The sheet-like mounting plate 23 has multiple pins inside. Each pin includes a round pin 24 and a fisheye head 25. The multiple round pins 24 are evenly spaced and fixedly disposed on the lower end face of the sheet-like mounting plate 23. The multiple fisheye heads 25 are evenly spaced and fixedly disposed on the side wall of the sheet-like mounting plate 23. A bent metal spring 26 is disposed between the round pins 24 and the fisheye heads 25.

[0051] Each sheet mounting plate 23 has a locking block 27 on its two side walls, and each locking block 27 is located near the lower end of the sheet mounting plate 23; each locking block 27 has a wedge-shaped block structure with the tip facing outwards.

[0052] Each insert fastener 20 has a connecting plate 28 vertically arranged on both sides of its top width direction. The length direction of each connecting plate 28 is the same as the length direction of the insert fastener 20. Multiple locking grooves 29 that cooperate with locking blocks 27 are provided on the inner sidewalls of the two connecting plates 28.

[0053] In the plug assembly 2, the multi-piece high-speed spring assembly 10 is detachably connected to each plug 9, which enables the rapid assembly, replacement and maintenance of the single high-speed spring assembly 10, and improves the assembly, replacement and maintenance efficiency of the entire high-speed connector.

[0054] like Figure 6 and Figure 7As shown, each sheet mounting plate 23 has a first locking block 30 and a second locking block 31 on its top two sides respectively. The first locking block 30 has a cuboid structure, and its lower end face is fixedly connected to the lower end face of the sheet mounting plate 23. The width of the first locking block 30 is smaller than the width of the sheet mounting plate 23. A first stop block 32 is fixedly provided on the upper end face of the first locking block 30. The width of the first stop block 32 is larger than the width of the first locking block 30.

[0055] The lower end face of the second locking block 31 is fixedly connected to the lower end face of the sheet mounting plate 23, and the upper end face of the second locking block 31 is provided with a second stop 33; the width of the second stop 33 is greater than the width of the second locking block 31.

[0056] A locking plate 34 is provided on the top of the multiple sheet-like mounting plates 23. The locking plate 34 has multiple sets of locking holes evenly spaced on it. The multiple sets of locking holes are matched one-to-one with the multiple sheet-like mounting plates 23.

[0057] The single set of locking holes includes a first locking strip hole 36 and a second locking strip hole; one end of the first locking strip hole 36 passes through one side of the locking plate 34, and the first locking block 30 is disposed in the first locking block 30; the diameter of the first locking strip hole 36 is greater than the width of the first locking block 30 and less than the width of the first stop block 32;

[0058] The second locking strip hole cooperates with the second locking block 31; the second locking strip hole includes a large-diameter strip hole 37 and a small-diameter strip hole 38 that are interconnected; the diameter of the large-diameter strip hole 37 is larger than that of the second stop block 33; the diameter of the small-diameter strip hole 38 is larger than that of the second locking block 31 and smaller than that of the second stop block 33.

[0059] By vertically arranging connecting plates 28 on both sides of the insert fixing member 20 and providing multiple locking grooves 29 on the connecting plates 28, and providing locking blocks 27 on each sheet mounting plate 23, the bottom of the multi-plate high-speed spring assembly 10 is fixedly connected to each plug 9 through the cooperation of the locking blocks 27 and the locking grooves 29; at the same time, a first locking block 30 and a second locking block 31 are provided on the top of each sheet mounting plate 23, and a separate locking plate 34 is provided. The multiple sets of locking holes on the locking plate 34 cooperate with the first locking block 30 and the second locking block 31 of each sheet mounting plate 23, so that the top of the multi-plate high-speed spring assembly 10 is connected as one piece, thereby improving the installation stability of the top of the multi-plate high-speed spring assembly 10.

Claims

1. A shielded and sealed high-speed connector, characterized in that, It includes a socket assembly and a plug assembly; the socket assembly includes a socket body, the socket body is provided with multiple plug-in areas, and each plug-in area is provided with multiple signal fisheye pins; each signal fisheye pin includes a plug end and a fisheye end fixedly connected to the plug end, the plug end and the fisheye end are an integral structure; The plug assembly includes a plug body, on which a number of plugs are provided to match a plurality of plug areas. The plugs and plug areas are in a one-to-one matching relationship. Each plug is provided with a plurality of high-speed spring assemblies, and each of the high-speed spring assemblies includes a plurality of pins for contacting the plurality of plug ends. Each insertion area is provided with multiple vibration shielding rings arranged circumferentially inside; the multiple vibration shielding rings are in close contact with the four sides of the insertion joint; A fixing plate is fixedly installed in each of the plug-in areas. Each fixing plate is provided with multiple mounting holes, and a signal fisheye pin is installed in each mounting hole. The plug-in end has a stepped round shaft structure and is fixedly connected to the mounting hole. The fisheye end is fixedly connected to the bottom end of the plug-in end and passes through the mounting hole and is located outside the fixing plate. Each of the vibration shielding rings includes a vertical plate, the top of which is connected to a cantilever plate. The cantilever plate is inclined towards the bottom of the vertical plate, and the bottom end of the cantilever plate is provided with a vertical direct contact plate that abuts against the four sides of the connector. The bottom of the vertical plate is provided with a locking member, which has a "U" shaped structure. Each insertion area has a ring-shaped mounting groove on its top inner wall, and multiple vibration shielding rings are set in the ring-shaped mounting groove; the top and bottom of the vertical plate are in close contact with the two side walls of the ring-shaped mounting groove, and the end face of the vertical plate is in contact with the bottom surface of the ring-shaped mounting groove. Below the annular mounting groove, there is also a fixing ring with a fixed protrusion; the engaging parts in each vibration shielding ring are engaged with the fixing ring.

2. The shielded and sealed high-speed connector according to claim 1, characterized in that, Each of the plugs is provided with a plug plate fixing component inside. Each plug plate fixing component is a cuboid structure. Multiple partitions are evenly arranged at intervals along the length of the upper end face of the plug plate fixing component. A high-speed spring assembly is arranged between two adjacent partitions. The upper surface of the insert plate fixing member located between two adjacent partitions is provided with multiple fixing holes, which are evenly spaced along the width direction of the insert plate fixing member; a pin is fixedly installed in each fixing hole.

3. The shielded and sealed high-speed connector according to claim 2, characterized in that, Each of the high-speed reed assemblies includes a sheet-like mounting plate disposed between two adjacent partitions. The sheet-like mounting plate has multiple pins disposed inside. Each pin includes a round pin and a fisheye head. The multiple round pins are evenly spaced and fixedly disposed on the lower end face of the sheet-like mounting plate. The multiple fisheye heads are evenly spaced and fixedly disposed on the side wall of the sheet-like mounting plate. A bent metal spring is disposed between the round pin and the fisheye head.

4. The shielded and sealed high-speed connector according to claim 3, characterized in that, Each of the sheet-like mounting plates has a locking block on each of its two sidewalls, and each locking block is located near the lower end of the sheet-like mounting plate; each locking block has a wedge-shaped block structure with its tip facing outwards. Each of the insert plate fixing components has a connecting plate vertically arranged on both sides of its top width direction, and the length direction of each connecting plate is in the same direction as the length direction of the insert plate fixing component; the inner sidewalls of the two connecting plates are provided with multiple locking grooves that cooperate with the locking block.

5. The shielded and sealed high-speed connector according to claim 4, characterized in that, Each of the sheet-like mounting plates has a first locking block and a second locking block on its top two sides respectively. The first locking block has a cuboid structure, and its lower end face is fixedly connected to the lower end face of the sheet-like mounting plate. The width of the first locking block is smaller than the width of the sheet-like mounting plate. A first stop block is fixedly provided on the upper end face of the first locking block, and the width of the first stop block is larger than the width of the first locking block. The lower end face of the second locking block is fixedly connected to the lower end face of the sheet mounting plate, and a second stop is provided on the upper end face of the second locking block; the width of the second stop is greater than the width of the second locking block. A locking plate is provided on the top of multiple sheet-like mounting plates, and multiple sets of locking holes are evenly spaced on the locking plate; the multiple sets of locking holes are matched one-to-one with the multiple sheet-like mounting plates. The single set of locking holes includes a first locking strip hole and a second locking strip hole; one end of the first locking strip hole passes through one side of the locking plate, and the first locking strip hole cooperates with the first locking block; the diameter of the first locking strip hole is greater than the width of the first locking block and less than the width of the first stop; The second locking strip hole cooperates with the second locking block; the second locking strip hole includes a large-diameter strip hole and a small-diameter strip hole that are interconnected; the diameter of the large-diameter strip hole is larger than that of the second stop block; the diameter of the small-diameter strip hole is larger than that of the second locking block and smaller than that of the second stop block.

6. The shielded and sealed high-speed connector according to claim 5, characterized in that, Both the socket body and the plug body have a rectangular structure when viewed from above. Two positioning holes are provided at the diagonal of the upper end face of the socket body; two positioning pins are provided at the diagonal of the lower end face of the plug body, which respectively cooperate with the two positioning holes.

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