A multi-contact spring-type electromagnetic shielded connector

Abstract

This invention relates to the field of electronic connector technology, specifically a multi-contact spring-loaded electromagnetic shielded connector, including a connector socket and a connector plug. Both the connector socket and connector plug have a connector for connecting cables on one side, and a connector ear is connected to one side of the connector. The connector plug has an upper and a lower locking seat that engages with the cable. Each of the upper and lower locking seats contains a half-body induction coil. When the upper and lower locking seats are engaged, the half-body induction coil forms a complete induction coil. A control chip electrically connected to the half-body induction coil is installed in the upper locking seat. Upper clamps are located at both ends of the upper locking seat, and lower clamps are located at both ends of the lower locking seat. This invention, through the complete induction coil formed by the upper and lower locking seats and the control chip, can sense changes in the electromagnetic environment in real time and analyze the connector's operating status.

Description

Technical Field

[0001] This invention relates to the field of electronic connector technology, and more specifically to a multi-contact spring-type electromagnetic shielded connector. Background Technology

[0002] In fields such as electronic equipment, communication systems, and industrial control, connectors are key components for signal and power transmission. The performance of their core structures—sockets, plugs, and wiring mechanisms—directly determines the reliability of system operation. Existing electromagnetically shielded connectors rely solely on the socket and plug housings for basic electromagnetic shielding, lacking electromagnetic environment monitoring capabilities. This prevents real-time detection of external interference and internal radiation, leading to signal transmission distortion in complex electromagnetic environments and making it difficult to optimize shielding effectiveness. Furthermore, existing connectors with induction coils often employ integral or simple splicing designs, lacking precise positioning and reliable locking mechanisms. Gaps easily form at the splicing points, affecting circuit conductivity and sensing accuracy. They are also prone to loosening under vibration and impact conditions, lacking adaptive locking and anti-loosening designs, resulting in poor stability.

[0003] Therefore, it is necessary to design an electromagnetic shielded connector that optimizes the assembly structure of sockets, plugs, connectors, and coils to achieve stable connection, convenient assembly, and real-time monitoring, in order to solve the pain points of existing technologies. Summary of the Invention

[0004] To address the problems in the prior art, this invention provides a multi-contact spring-loaded electromagnetic shielded connector to achieve stable connection, convenient assembly, and real-time monitoring.

[0005] The technical solution adopted by this invention to solve its technical problem is a multi-contact spring-type electromagnetic shielded connector, including a connector socket and a connector plug. One side of both the connector socket and connector plug is provided with a connector for connecting cables. One side of the connector is connected to a connecting ear. One side of the connector plug is provided with an upper and a lower locking seat that engages with the cable. Both the upper and lower locking seats contain a half-body induction coil. When the upper and lower locking seats are engaged, the half-body induction coil is engaged to form a complete induction coil. A control chip electrically connected to the half-body induction coil is installed in the upper locking seat. Upper clamps are provided at both ends of the upper locking seat, and lower clamps are provided at both ends of the lower locking seat. Vertical screws are connected to both sides of the upper clamps. The lower clamps have positioning holes corresponding to the lower ends of the screws, and self-locking nuts are installed in the positioning holes.

[0006] Preferably, the nut self-locking component includes a positioning cavity disposed in the lower clamp and communicating with the lower end of the positioning hole. A nut is bonded to the top of the positioning cavity, and a torsion spring for torsion storage is connected between the nut and the bottom of the positioning cavity. After the lower end of the screw squeezes the nut, the nut separates from the top of the positioning cavity.

[0007] Preferably, the upper surface of the lower card holder has several sets of plug terminals that connect to the end of the half-body induction coil inside the lower card holder, and the lower surface of the upper card holder has several sets of plug connectors corresponding to the plug terminals. The plug connectors at both ends of the upper card holder are electrically connected to the control chip via cables, and the plug connector in the middle of the upper card holder is connected to the end of the half-body induction coil inside the upper card holder.

[0008] Preferably, both ends of the upper and lower clamping seats are integrally connected with arc-shaped plates, and the outer ring of the arc-shaped plates is integrally connected with arc-shaped protrusions along the direction of the arc-shaped plates. The arc-shaped protrusions are thin at both ends and thick in the middle. The side of the upper clamping seat near the upper clamping seat and the side of the lower clamping seat near the lower clamping seat are integrally connected with arc-shaped snap-fit ​​plates. The arc-shaped protrusions are located on the inner side of the snap-fit ​​plates. The inner side of the snap-fit ​​plates is provided with snap-fit ​​grooves arranged along the arc surface direction of the snap-fit ​​plates. The snap-fit ​​grooves correspond to the arc-shaped protrusions, and the depth of the middle part of the snap-fit ​​grooves is greater than the depth of the two ends.

[0009] Preferably, the side of the arc-shaped plate is provided with several sets of ratchet teeth along the direction of the arc-shaped plate, and the side of the upper clamping seat near the upper card seat and the side of the lower clamping seat near the lower card seat are provided with slots corresponding to the ratchet teeth.

[0010] Preferably, the inner side of the lower clamping seat is provided with an arc-shaped thermal expansion pad, and the two sides of the arc-shaped thermal expansion pad are integrally connected with gaskets. The gaskets are provided with holes corresponding to the plug-in connectors. The inner side of the arc-shaped thermal expansion pad is provided with a storage interlayer filled with thermal expansion fluid. The outer sides of the lower clamping seat and the outer ends of the upper clamping seat are provided with liquid storage chambers. The inner side of the liquid storage chamber is sealed and slidably connected with a piston. The side of the piston is connected with a pin. The sides of the upper clamping seat and the lower clamping seat are provided with pin grooves corresponding to the pins.

[0011] Preferably, the lower end of the torsion spring is connected to a rotating gear, the rotating gear is rotatably connected to the bottom of the positioning cavity, and an adjusting screw that meshes with the rotating gear is rotatably connected to the side of the lower clamp.

[0012] Preferably, the connector socket includes a socket housing and an insulator II nested inside the socket housing. The insulator II has several sets of through holes, and pins are engaged in the through holes. A flange is integrally connected to the outside of the socket housing, and a fixing hole is provided on the flange. Several positioning grooves are distributed around the inner circumference of the socket housing.

[0013] Preferably, the connector plug includes a fixed cylinder, an insulator three is engaged inside the fixed cylinder, a through hole is opened on the insulator three, a pin is engaged in the through hole, the socket housing is provided with a thread on the outer side near the fixed cylinder, an internally threaded sleeve is rotatably connected to the outer side of the fixed cylinder, and a positioning protrusion corresponding to the positioning groove is provided on the outer side of the fixed cylinder.

[0014] Preferably, each connector includes a connector housing and an insulator nested within the connector housing, the insulator having several sets of through holes; the connector housing has a thread on the inner side of the end near the connector socket.

[0015] The beneficial effects of this invention are:

[0016] (1) The multi-contact spring-type electromagnetic shielded connector of the present invention has a fully enclosed electromagnetic shielding structure formed by the connector socket and the connector plug, which effectively blocks the intrusion of external electromagnetic signals; at the same time, the complete induction coil formed by the upper card and the lower card combined with the control chip can sense changes in the electromagnetic environment in real time and analyze the usage status of the connector.

[0017] (2) The multi-contact spring-type electromagnetic shielded connector of the present invention has a nut self-locking component that achieves reliable locking of the vertical screw through the synergistic action of torsion spring, rotating gear and adjusting screw, and can finely adjust the locking force according to the requirements, effectively resisting loosening caused by vibration and external force; combined with the wedge structure of arc-shaped protrusion and snap-fit ​​groove, the clamping force can be enhanced when rotating the snap-fit ​​seat, ensuring the splicing accuracy and stability of the half-body induction coil;

[0018] (3) The multi-contact spring-type electromagnetic shielded connector of the present invention has a ratchet on the arc plate and a clamping slot forming a one-way meshing limit to prevent the clamping slot from rotating in the opposite direction and maintain the positioning accuracy of the component; under high temperature environment, the thermal expansion fluid in the liquid storage cavity pushes the pin to achieve secondary positioning, further enhancing the connection stability. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is an isometric view of the present invention;

[0021] Figure 2 This is a schematic cross-sectional view of the connector socket and connector plug of the present invention after they are connected.

[0022] Figure 3 This is an isometric view of the connector socket and connector plug of the present invention;

[0023] Figure 4 This is an isometric view of the upper and lower card holders of the present invention;

[0024] Figure 5 This is a partial cross-sectional structural diagram of the upper and lower clamping seats on one side of the upper card holder of the present invention;

[0025] Figure 6 This is an isometric view of the upper and lower clamping seats on the other side of the upper clamping seat of the present invention;

[0026] Figure 7This is a partial cross-sectional structural diagram of the lower card holder of the present invention;

[0027] Figure 8 This is an isometric view of the arc-shaped thermal expansion pad of the present invention;

[0028] Figure 9 for Figure 3 Another perspective isometric drawing;

[0029] Figure 10 for Figure 5 Enlarged view of region A;

[0030] Figure 11 for Figure 7 Enlarged view of region B;

[0031] Figure 12 This is an isometric view of the half-body induction coil of the present invention;

[0032] In the diagram: 1. Connector socket; 2. Connector plug; 3. Wiring device; 4. Wiring device housing; 5. Connecting ear; 6. Upper bracket; 7. Lower bracket; 8. Half-body induction coil; 9. Control chip; 10. Upper clamp; 11. Lower clamp; 12. Screw; 13. Positioning hole; 14. Groove; 15. Positioning cavity; 16. Nut; 17. Torsion spring; 18. Plug terminal; 19. Plug connector; 20. Arc plate; 21. Arc-shaped protrusion; 22. Snap-fit ​​plate; 23. Insulation 1. Insulator 1; 24. Snap-fit ​​groove; 25. Racket tooth; 26. Snap-fit ​​groove; 27. Arc-shaped thermal expansion pad; 28. Gasket; 29. ​​Hole; 30. Socket housing; 31. Insulator 2; 32. Pin; 33. Flange; 34. Fixing hole; 35. Fixing cylinder; 36. Insulator 3; 37. Internal threaded sleeve; 38. Positioning groove; 39. Positioning protrusion; 40. Liquid reservoir; 41. Piston; 42. Pin rod; 43. Pin groove; 44. Rotating gear; 45. Adjusting screw. Detailed Implementation

[0033] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0034] As one embodiment of the present invention, such as Figures 1 to 9As shown, the multi-contact spring-loaded electromagnetic shielded connector of the present invention includes a connector socket 1 and a connector plug 2. Both the connector socket 1 and the connector plug 2 have a connector 3 for connecting cables on one side. A connector ear 5 is connected to one side of the connector 3. The connector plug 2 has an upper retainer 6 and a lower retainer 7 that engage with the cable. A half-body induction coil 8 is provided inside both the upper retainer 6 and the lower retainer 7. When the upper retainer 6 and the lower retainer 7 are engaged, the half-body induction coil 8 is engaged to form a complete induction coil. A control chip 9 electrically connected to the half-body induction coil 8 is installed inside the upper retainer 6. Upper clamps 10 are provided at both ends of the upper retainer 6, and lower clamps 11 are provided at both ends of the lower retainer 7. Vertical screws 12 are connected to both sides of the upper clamps 10. Positioning holes 13 corresponding to the lower ends of the screws 12 are provided on the lower clamps 11, and self-locking nuts are installed in the positioning holes 13.

[0035] When using, select a cable of the appropriate specification, strip the outer insulation layer at both ends of the cable, insert one end of the stripped cable into the connector socket 1 and the other end into the connector plug 2. Remove the upper card slot 6 and the lower card slot 7, and confirm that the half-body induction coil 8 inside both is undamaged, the contacts are clean, and the control chip 9 in the upper card slot 6 is reliably electrically connected to the half-body induction coil 8.

[0036] Secure the upper clamp 6 and lower clamp 7 to both sides of the cable, positioning them near the connector plug 2. Align the closed interfaces of the upper clamp 6 and lower clamp 7, and press them radially along the cable to ensure the two half-induction coils 8 are fully engaged, forming a complete induction coil. Align the vertical screws 12 on both sides of the upper clamp 10 with the positioning holes 13 on the lower clamp 11. Slowly press the upper clamp 10 downwards, inserting the lower end of the screws 12 into the corresponding positioning holes 13, ensuring the screws 12 are inserted to the correct depth. During screw insertion, the nut self-locking mechanism automatically locks the screws 12 to prevent vibration or external force from causing the clamps to loosen or the coils to separate.

[0037] Push the connector plug 2 along the axial direction to make the connector plug 2 fully dock with the connector socket 1; after docking, the control chip 9 in the upper card slot 6 monitors the electromagnetic environment in real time through the complete induction coil, realizes real-time monitoring of the connector status, and provides a basis for equipment status perception.

[0038] When the environment in which the connector is located is subject to external electromagnetic radiation, such as electromagnetic leakage from surrounding electronic equipment or industrial electromagnetic interference, the external electromagnetic field will pass through the gap between the socket housing 30 and the fixing cylinder 35, or through electromagnetic coupling, and act on the complete induction coil formed by the upper card slot 6 and the lower card slot 7; the half-body induction coil 8 will generate an induced electromotive force due to the change of the external magnetic field, forming a weak induced current.

[0039] When the connector is connected to the cable through the connector 3 and current flows through it, the internal conductive components will generate an electromagnetic field. This internal electromagnetic field will also act on the complete induction coil, causing it to generate an induced current corresponding to the intensity of the internal electromagnetic radiation. If abnormal conditions such as poor contact of the connector or partial discharge occur, the internal electromagnetic field will be unevenly distributed, which will cause the induced current generated by the half-body induction coil 8 to fluctuate irregularly.

[0040] The induced current generated by the half-body induction coil 8 is transmitted to the control chip 9; the signal acquisition module of the control chip 9 captures the induced current signal in real time, and after the environmental noise interference is removed by the filtering unit, the analog signal is converted into a digital signal by the analog-to-digital conversion component; the control chip 9 compares the digital signal with the reference threshold according to the preset algorithm to accurately identify the change amplitude and trend of the electromagnetic environment.

[0041] The control chip 9 can output the sensing results of electromagnetic environment changes to external devices (such as system controllers and monitoring terminals) through a preset interface to provide electromagnetic environment status feedback for the system. If the electromagnetic interference intensity exceeds the safety threshold, the control chip 9 can trigger an alarm signal to remind staff to take timely shielding and reinforcement or equipment debugging measures.

[0042] To ensure the locking effect of the nut's self-locking mechanism, as one embodiment of the present invention, such as... Figure 4 , 5 As shown in Figure 10, the nut self-locking component includes a positioning cavity 15 disposed in the lower clamping seat 11 and communicating with the lower end of the positioning hole 13. A nut 16 is bonded to the top of the positioning cavity 15. A torsion spring 17 for torsion storage is connected between the nut 16 and the bottom of the positioning cavity 15. After the lower end of the screw 12 squeezes the nut 16, the nut 16 separates from the top of the positioning cavity 15. The lower clamping seat 11 near the connecting ear 5 is provided with a groove 14 that matches the shape of the connecting ear 5.

[0043] In use, align the upper card seat 6 and the lower card seat 7, and align the vertical screws 12 on both sides of the upper clamp 10 with the positioning holes 13 on the lower clamp 11. Press the upper card seat 6 and the lower card seat 7, as well as the upper clamp 10 and the lower clamp 11, radially along the cable to make the two half-body induction coils 8 completely fit together to form a complete induction coil. At the same time, insert the lower end of the screw 12 into the corresponding positioning hole 13 and continuously press down on the nut 16 bonded to the top of the positioning cavity 15 to separate the nut 16 from the top of the positioning cavity 15. At this time, the torsion spring 17 automatically twists based on the initial stored force. The torsion spring 17 drives the nut 16 to rotate and locks it with the screw 12 to prevent vibration or external force from causing loosening and separation.

[0044] After docking is completed, the control chip 9 inside the upper card slot 6 monitors the electromagnetic environment in real time through a complete induction coil, realizing real-time monitoring of the connector status and providing a basis for equipment status perception.

[0045] To ensure the use of the half-body induction coil 8, as one embodiment of the present invention, such as Figure 4 , 12 As shown, the upper surface of the lower card holder 7 is provided with several sets of plug terminals 18 that are connected to the ends of the half-body induction coil 8 inside the lower card holder 7. The lower surface of the upper card holder 6 is provided with several sets of plug connectors 19 that correspond to the plug terminals 18. The plug connectors 19 at both ends of the upper card holder 6 are electrically connected to the control chip 9 through cables. The plug connector 19 in the middle of the upper card holder 6 is connected to the ends of the half-body induction coil 8 inside the upper card holder 6.

[0046] In use, insert the upper card holder 6 and the lower card holder 7 into the cable from both sides, and align the sets of plug-in connectors 19 at both ends and the middle of the upper card holder 6 with the corresponding plug-in terminals 18 on the lower card holder 7 that are connected to the half-body induction coils 8. Press the upper card holder 6 and the lower card holder 7 smoothly along the radial direction of the cable to ensure that each set of plug-in connectors 19 and the corresponding plug-in terminals 18 are fully inserted into place to ensure good contact, and at the same time make the two half-body induction coils 8 fit together to form a complete induction coil.

[0047] After the connector is connected, the control chip 9 forms a path with the complete induction coil through the two ends of the upper card slot 6 plug-in connector 19 and the lower card slot 7 plug-in terminal 18. The induction coil can generate an induced current when current flows through the connector, and generate an induction signal in conjunction with the control chip 9 to realize real-time monitoring of the current flow status of the connector.

[0048] To ensure the stability of the connection between the upper card holder 6 and the lower card holder 7, as an embodiment of the present invention, such as Figures 5 to 7 As shown, both ends of the upper card holder 6 and the lower card holder 7 are integrally connected with arc-shaped plates 20. The outer ring of the arc-shaped plate 20 is integrally connected with an arc-shaped protrusion 21 along the direction of the arc-shaped plate 20. The arc-shaped protrusion 21 is thin at both ends and thick in the middle. The side of the upper clamping seat 10 near the upper card holder 6 and the side of the lower clamping seat 11 near the lower card holder 7 are integrally connected with arc-shaped snap-fit ​​plates 22. The arc-shaped protrusion 21 is located on the inner side of the snap-fit ​​plate 22. The inner side of the snap-fit ​​plate 22 is provided with snap-fit ​​grooves 24 arranged along the arc surface direction of the snap-fit ​​plate 22. The snap-fit ​​grooves 24 correspond to the arc-shaped protrusion 21. The depth of the middle part of the snap-fit ​​grooves 24 is greater than the depth of the two ends.

[0049] When in use, after clamping the upper clamp 6 and the lower clamp 7 onto the cable and aligning them, the upper clamp 10 and the lower clamp 11 are locked by the screw 12 and the nut self-locking part. After the upper clamp 10 and the lower clamp 11 are clamped and locked, they remain stable with the cable.

[0050] Manually rotate the upper clamping seat 6 and the lower clamping seat 7 to allow the arc-shaped protrusion 21 on the arc plate 20 to slide within the clamping groove 24. The arc-shaped protrusion 21 is thin at both ends and thick in the middle, and the clamping groove 24 has a relatively large depth in the middle. During the movement of the arc-shaped protrusion 21, the arc plate 20 can be pressed towards the center of the arc plate 20, thereby increasing the clamping force of the upper clamping seat 6 and the lower clamping seat 7, ensuring the stability of the half-body induction coil 8 assembly, and enhancing the connection stability between the upper clamping seat 6, the lower clamping seat 7 and the upper clamping seat 10, the lower clamping seat 11.

[0051] To ensure the stability of the rotation of the upper card holder 6 and the lower card holder 7, as an embodiment of the present invention, such as... Figure 6 , 7 As shown, the side of the arc plate 20 is provided with a number of ratchet teeth 25 along the direction of the arc plate 20. The upper clamping seat 10 near the upper clamping seat 6 and the lower clamping seat 11 near the lower clamping seat 7 are both provided with slots 26 corresponding to the ratchet teeth 25.

[0052] In use, by rotating the upper card holder 6 and the lower card holder 7, the arc-shaped protrusion 21 on the arc plate 20 slides in the card slot 24, which improves the stability of the half-body induction coil 8 splicing, and at the same time enhances the connection stability between the upper card holder 6, the lower card holder 7 and the upper clamp 10, the lower clamp 11.

[0053] During rotation, the ratchet 25 on the arc plate 20 and the clamp slot 26 form a one-way engagement limit to prevent the upper clamp 6 and the lower clamp 7 from rotating in opposite directions, further enhancing the connection stability between the upper clamp 6, the lower clamp 7 and the clamp, while maintaining the accurate positioning of the half-body induction coil 8 after assembly.

[0054] To prevent the gap between the upper retainer 6 and the lower retainer 7 from widening due to cable thermal expansion, which would affect the sealing effect of the plug connector 19 and the plug terminal 18, as an embodiment of the present invention, such as Figure 6 , 7 As shown in Figures 8 and 11, the inner side of the lower clamping seat 7 is provided with an arc-shaped thermal expansion pad 27, and the two sides of the arc-shaped thermal expansion pad 27 are integrally connected with gaskets 28. The gaskets 28 are provided with holes 29 corresponding to the plug-in connector 19. The inner side of the arc-shaped thermal expansion pad 27 is provided with a storage interlayer filled with thermal expansion fluid. The outer sides of the lower clamping seat 7 and the outer ends of the upper clamping seat 6 are provided with liquid storage chambers 40. The inner side of the liquid storage chamber 40 is sealed and slidably connected with a piston 41. The side of the piston 41 is connected with a pin rod 42. The sides of the upper clamping seat 10 and the lower clamping seat 11 are provided with pin grooves 43 corresponding to the pin rod 42.

[0055] When using, when inserting the lower retainer 7 into the cable from one side, ensure that the inner side of the arc-shaped thermal expansion pad 27 is tightly attached to the cable surface, and at the same time, align the holes 29 on the pad 28 with the plug terminals 18 on the lower retainer 7 one by one to avoid the holes 29 shifting and blocking the plug terminals 18, which would affect the subsequent docking of the plug connectors 19; by rotating the upper retainer 6 and the lower retainer 7, the arc-shaped protrusions 21 on the arc plate 20 slide in the retaining groove 24, which improves the stability of the half-body induction coil 8 assembly, and at the same time enhances the connection stability between the upper retainer 6, the lower retainer 7 and the upper clamp 10, the lower clamp 11, and at the same time, align the liquid storage cavity 40 with the pin groove 43 to prepare for subsequent positioning and locking.

[0056] After the cable reaches an abnormally high temperature, the thermal expansion fluid in the liquid storage chamber 40 expands and pushes the piston 41 to drive the pin rod 42 to insert into the corresponding pin groove 43, thereby achieving secondary positioning of the upper card seat 6 and the upper clamping seat 10, and the lower card seat 7 and the lower clamping seat 11, which enhances the connection stability under high temperature conditions and prevents the upper card seat 6 and the lower card seat 7 from affecting the engagement stability of the ratchet 25 and the card groove 26 under high temperature conditions.

[0057] Meanwhile, when the cable temperature rises, the thermal expansion fluid inside the arc-shaped thermal expansion pad 27 expands due to heat, pushing the thermal expansion pad further towards the cable, increasing the tightness of the fit between the lower bracket 7 and the cable. At the same time, the gasket 28 avoids the plug connector 19 through the hole 29, without affecting the circuit conduction. The gasket 28 expands due to the compression of the thermal expansion fluid, which can adapt to the changes in the gap between the upper bracket 6 and the lower bracket 7, preventing water or dust from entering the gap and affecting the use of the induction coil. When the temperature drops, the thermal expansion fluid contracts, and the arc-shaped thermal expansion pad 27 sinks accordingly, still maintaining the basic fit with the cable.

[0058] To facilitate adjustment of the nut self-locking component, as one embodiment of the present invention, such as... Figure 5 , 6 As shown in Figure 10, the lower end of the torsion spring 17 is connected to the rotating gear 44, the rotating gear 44 is rotatably connected to the bottom of the positioning cavity 15, and the side of the lower clamp 11 is rotatably connected to the adjusting screw 45 that meshes with the rotating gear 44.

[0059] In use, align the lower end of the vertical screw 12 of the upper clamp 10 with the positioning hole 13 of the lower clamp 11, and slowly press the upper clamp 10 downwards so that the lower end of the screw 12 is inserted into the positioning hole 13 and continuously presses the nut 16 at the top of the positioning cavity 15 until the nut 16 separates from the top of the positioning cavity 15; at this time, the torsion spring 17 automatically twists by relying on its initial stored force, and drives the nut 16 to rotate synchronously through the rotating gear 44, so that the nut 16 and the screw 12 threads are precisely engaged and locked and fixed, and the continuous torque of the torsion spring 17 is used to prevent vibration or external force from causing the parts to loosen and separate;

[0060] After automatic locking, the self-locking force can be finely adjusted according to actual assembly requirements. Specifically, rotating the adjusting screw 45 clockwise will cause the rotating gear 44 to rotate further through the meshing transmission between the adjusting screw 45 and the rotating gear 44, causing the torsion spring 17 to twist and store force, increasing the locking force between the nut 16 and the screw 12; when rotating the adjusting screw 45 counterclockwise, the rotating gear 44 rotates in the opposite direction, and the torsion spring 17 partially releases the stored force, finely adjusting to the tightness suitable for the usage scenario.

[0061] During disassembly, first rotate the adjusting screw 45 counterclockwise to drive the rotating gear 44 to rotate in the opposite direction, so that the torsion spring 17 can fully release its stored force (including the initial stored force and the stored force of additional adjustment); after the torsion spring 17 returns to the relaxed state, continue to rotate the adjusting screw 45 counterclockwise, so as to unscrew the nut 16 in the opposite direction through the torsion spring 17, thereby releasing the locking state of the upper clamp 10 and the lower clamp 11, and avoiding the residual stored force of the torsion spring 17 from causing the parts to collide or the threads to jam when they are separated.

[0062] To ensure the proper use of the connector, as an embodiment of the present invention, such as Figure 2 As shown, each connector 3 includes a connector housing 4 and an insulator 23 nested inside the connector housing 4. The insulator 23 is provided with several sets of through holes.

[0063] In use, the conductor portion of the cable passes through the through hole of the insulator 23 inside the connector housing 4 and achieves a stable electrical connection with the pin 32 inside the connector socket 1 or connector plug 2. The insulator 23 is made of insulating material, and the multiple through holes of the insulator 23 can achieve the isolation arrangement of multiple conductors to avoid short circuits between conductors, while blocking the direct contact between the pin 32 and the connector housing 4, ensuring insulation safety.

[0064] The connector housing 4, connector socket 1 housing, and plug housing are all made of metal, which can effectively block the intrusion of external electromagnetic signals. For example, the connector housing 4, connector socket 1 housing, and connector plug 2 housing of the present invention can be made of brass, with nickel plating on the surface and a thickness of 2-3mm, which has both electromagnetic shielding and corrosion resistance. The insulator 23 can be made of polytetrafluoroethylene.

[0065] To ensure the usability of connector socket 1, as an embodiment of the present invention, such as Figures 1 to 3 as well as Figure 9 As shown, the connector socket 1 includes a socket housing 30 and an insulator 2 31 nested inside the socket housing 30. The insulator 2 31 has several sets of through holes, and a pin 32 is snapped into the through holes. A flange 33 is integrally connected to the outside of the socket housing 30. The flange 33 has a fixing hole 34. Several positioning grooves 38 are distributed around the inner circumference of the socket housing 30.

[0066] In use, insulator 2 31 is nested inside socket housing 30. The socket housing 30 limits the axial and radial positioning of insulator 2 31, ensuring that the relative position of insulator 2 31 and socket housing 30 is fixed. Several sets of through holes on insulator 2 31 correspond one-to-one with the through holes of insulator 1 23 of connector 3, providing a precise installation channel for pin 32. At the same time, the insulation characteristics of insulator 2 31 achieve electrical isolation between adjacent pins 32 and between pin 32 and socket housing 30, blocking short circuit paths.

[0067] The pin 32 is inserted into the through hole of the insulator 31 by interference snap-fit. The elastic compression force between the inner wall of the through hole and the outer wall of the pin 32 ensures that the pin 32 is reliably fixed and prevents displacement of the pin 32 during insertion, removal or vibration. One end of the pin 32 forms a conductive connection with the main cable conductor, and the other end extends out of the mating surface of the socket housing 30, providing a contact carrier for the conductive mating of the connector plug 2 and the connector socket 1, ensuring stable transmission of signals and electrical energy.

[0068] The annular flange 33 provides an installation reference surface for fixing the socket housing 30 to the equipment panel. The fixing hole 34 can be used to achieve a rigid connection between the flange 33 and the equipment panel by passing bolts through it, thereby fixing the socket housing 30 to the preset installation position of the equipment and limiting the overall displacement of the socket housing 30.

[0069] Several sets of positioning grooves 38 distributed circumferentially on the inner wall of the socket housing 30 form an adaptive fit with the corresponding protrusions of the connector plug 2. During the docking process between the connector plug 2 and the connector socket 1, the positioning grooves 38 provide directional guidance for the insertion of the connector plug 2, guiding the connector plug 2 to accurately dock along a preset trajectory, ensuring the alignment accuracy of the pins 32 of the connector plug 2 and the pins 32 of the connector socket 1, and avoiding poor contact or component damage caused by misalignment.

[0070] To ensure the usability of connector plug 2, as one embodiment of the present invention, such as Figures 1 to 3 as well as Figure 9 As shown, the connector plug 2 includes a fixed cylinder 35, an insulator 36 is fitted inside the fixed cylinder 35, a through hole is opened on the insulator 36, and a pin 32 is fitted inside the through hole. The socket housing 30 has a thread on the outer side of one end near the fixed cylinder 35. The outer side of the fixed cylinder 35 is rotatably connected to an internally threaded sleeve 37. The outer side of the fixed cylinder 35 has a positioning protrusion 39 corresponding to the positioning groove 38.

[0071] In use, insulator 36 is fitted into the fixed cylinder 35 using a snap-fit ​​method. Axial and radial positioning is achieved through the limiting structure on the inner wall of the fixed cylinder 35, ensuring that the relative position of insulator 36 and fixed cylinder 35 is fixed. The through holes on insulator 36 correspond one-to-one with the through holes of insulator 2 31 of connector socket 1, providing a precise installation channel for pin 32. At the same time, the insulating properties of insulator 36 are used to achieve electrical isolation between adjacent pins 32 and between pin 32 and fixed cylinder 35, avoiding the risk of short circuit.

[0072] The pin 32 is inserted into the through hole of the insulator 36 by interference fit. The elastic compression force between the inner wall of the through hole and the outer wall of the pin 32 is used to reliably fix the pin 32 and prevent the pin 32 from displacing during insertion and removal cycles or under vibration. One end of the pin 32 forms a conductive connection with the main cable conductor, and the other end is reserved for mating. When the connector plug 2 mates with the connector socket 1, it makes precise contact with the pin 32 on the connector socket 1 side to build a stable conductive path and ensure the continuity of signal and power transmission.

[0073] The external thread on the outer side of the socket housing 30 near the fixed cylinder 35 is precisely matched with the internal thread of the internal thread sleeve 37. When the connector plug 2 is aligned with the socket, the internal thread sleeve 37 is rotated to make the thread structure mesh with each other. The axial locking force is generated through the thread transmission, pushing the fixed cylinder 35 to move towards the socket housing 30 until the plug and socket are completely fitted, realizing the detachable rigid fixation of the two.

[0074] To facilitate the installation of the connector housing 4, as one embodiment of the present invention, such as Figures 1 to 3 as well as Figure 9 As shown, the connector housing 4 has a thread on the inner side of one end near the connector socket 1.

[0075] In use, the thread provided in the connector housing 4 allows for quick threaded connection between the connector 3 and the connector socket 1 or connector plug 2, thereby improving the ease of installation of the connector 3.

[0076] In use, one end of the cable after stripping the conductor is passed through the connector housing 4 of the connector socket 1, so that the conductor part is inserted into the corresponding through hole of the insulator 23, and a stable electrical connection is achieved with the internal conductive component of the connector socket 1; the connector 3 is tightened and fixed to the connector socket 1 by the thread provided on the inner side of the connector housing 4; then, the cable is assembled with the connector 3 of the connector plug 2 to ensure that the conductor is inserted in place, and the through hole of the insulator 23 allows for the separate arrangement of multiple conductors to avoid short circuits between conductors;

[0077] Remove the upper retainer 6 and lower retainer 7, insert them into the cable from both sides and align them with the preset positions of the cable near the connector plug 2; ensure that the arc-shaped thermal expansion pad 27 on the inner side of the lower retainer 7 is tightly attached to the cable surface, and that the holes 29 on the pad 28 are aligned with the plug terminals 18 of the lower retainer 7 to avoid obstructing the plug terminals 18; align the upper retainer 6 and lower retainer 7 so that the plug connector 19 is precisely aligned with the plug terminal 18, while ensuring that the arc-shaped plates 20 of the upper retainer 6 and lower retainer 7 correspond to the positions of the retaining plates 22 of the upper clamp 10 and lower clamp 11; press the upper retainer 6 smoothly along the radial direction of the cable. The base 6 and the lower card slot 7 allow the two sets of half-body induction coils 8 to be completely attached to form a complete induction coil. At the same time, it ensures that all plug-in connectors 19 and corresponding plug-in terminals 18 are fully inserted and in good contact, thus establishing a conductive path between the control chip 9 and the induction coil. During the pressing process, the screw 12 is precisely aligned with the positioning hole 13. The lower end of the screw 12 is inserted into the positioning hole 13 and continuously squeezes the nut 16, causing the nut 16 to separate from the top of the positioning cavity 15. The torsion spring 17 automatically twists the nut 16 based on its initial stored force, engaging and locking with the screw 12 thread to prevent loosening or separation due to vibration or external force.

[0078] Manually rotate the upper clamping seat 6 and the lower clamping seat 7 to allow the arc-shaped protrusion 21 to slide within the clamping groove 24. Utilizing the structural characteristics of the arc-shaped protrusion 21 being thinner at both ends and thicker in the middle, and the middle of the clamping groove 24 being deeper than both ends, the arc-shaped plate 20 is squeezed towards the center, increasing the clamping force of the upper clamping seat 6 and the lower clamping seat 7, ensuring the stability of the assembly of the half-body induction coil 8 and the connection stability with the upper clamping seat 10 and the lower clamping seat 11. During the rotation, the ratchet 25 and the clamping groove 26 form a one-way meshing limit to prevent the upper clamping seat 6 and the lower clamping seat 7 from rotating in opposite directions, maintaining the accurate positioning of the half-body induction coil 8 after assembly.

[0079] When the cable temperature rises abnormally, the thermal expansion fluid in the liquid storage chamber 40 expands due to heat, pushing the piston 41 to drive the pin rod 42 to insert into the corresponding pin groove 43, realizing the secondary positioning of the upper card seat 6 and the upper clamp seat 10, and the lower card seat 7 and the lower clamp seat 11, thereby enhancing the connection stability under high temperature environment and avoiding the impact of high temperature on the engagement effect of the ratchet 25 and the card groove 26.

[0080] Meanwhile, the thermal expansion fluid inside the arc-shaped thermal expansion pad 27 expands, pushing the thermal expansion pad to further compress the cable, improving the tightness of the fit between the lower bracket 7 and the cable; the pad 28 avoids the plug connector 19 through the hole 29, does not affect the circuit conduction and can adapt to the gap changes between the upper bracket 6 and the lower bracket 7, preventing water or dust from entering; after the temperature drops, the thermal expansion fluid contracts, and the arc-shaped thermal expansion pad 27 maintains the basic fit with the cable;

[0081] Align the positioning protrusion 39 of connector plug 2 with the positioning groove 38 of connector socket 1, and push connector plug 2 axially to gradually bring the mating surfaces of the two together, ensuring that the side pins 32 of connector plug 2 and the side pins 32 of connector socket 1 are accurately aligned to avoid misalignment and collision damage to components; after mating, rotate the internal thread sleeve 37 on the outside of the fixing sleeve 35 of connector plug 2 to make it engage with the outer thread of the socket housing 30 of connector socket 1, and generate axial locking force through thread transmission to achieve rigid fixation of the two and prevent vibration from causing separation; when connector socket 1 needs to be fixed to the equipment panel, fit the flange 33 into the preset installation position of the equipment, and insert bolts through the fixing holes 34 on the flange 33 to lock the flange 33 to the equipment panel, restricting the overall displacement of the socket housing 30;

[0082] After docking, the control chip 9 in the upper card slot 6 forms a path with the complete induction coil through the plug-in connectors 19 at both ends of the upper card slot 6 and the plug-in terminals 18 of the lower card slot 7. When current flows through the connector, the induction coil generates an induced current, which, together with the control chip 9, generates an induction signal to monitor the electromagnetic environment and the current flow status of the connector in real time, providing a basis for equipment status perception.

[0083] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-contact spring-loaded electromagnetic shielded connector, characterized in that, The connector includes a connector socket (1) and a connector plug (2). One side of the connector socket (1) and the connector plug (2) is provided with a connector (3) for connecting cables. One side of the connector (3) is connected with a connector ear (5). One side of the connector plug (2) is provided with an upper card slot (6) and a lower card slot (7) that are snapped onto the cable. The upper card slot (6) and the lower card slot (7) are each provided with a half-body induction coil (8). When the upper card slot (6) and the lower card slot (7) are engaged, the half-body induction coil (8) is engaged to form a complete induction coil. The upper card slot (6) is provided with a control chip (9) that is electrically connected to the half-body induction coil (8). The upper card slot (6) is provided with an upper clamp (10) at both ends. The lower card slot (7) is provided with a lower clamp (11) at both ends. The upper clamp (10) is connected to vertical screws (12) on both sides. The lower clamp (11) is provided with a positioning hole (13) corresponding to the lower end of the screw (12). The positioning hole (13) is provided with a nut self-locking component.

2. The multi-contact spring-loaded electromagnetic shielding connector according to claim 1, characterized in that, The nut self-locking component includes a positioning cavity (15) disposed in the lower clamp (11) and communicating with the lower end of the positioning hole (13). A nut (16) is bonded to the top of the positioning cavity (15). A torsion spring (17) for torsion storage is connected between the nut (16) and the bottom of the positioning cavity (15). After the lower end of the screw (12) squeezes the nut (16), the nut (16) separates from the top of the positioning cavity (15). The lower clamp (11) near the connecting ear (5) is provided with a groove (14) that matches the shape of the connecting ear (5).

3. A multi-contact spring-loaded electromagnetic shielding connector according to claim 2, characterized in that, The upper surface of the lower card holder (7) is provided with several sets of plug terminals (18) that are connected to the end of the half-body induction coil (8) inside the lower card holder (7). The lower surface of the upper card holder (6) is provided with several sets of plug connectors (19) that correspond to the plug terminals (18). The plug connectors (19) at both ends of the upper card holder (6) are electrically connected to the control chip (9) through cables. The plug connector (19) in the middle of the upper card holder (6) is connected to the end of the half-body induction coil (8) inside the upper card holder (6).

4. A multi-contact spring-loaded electromagnetic shielding connector according to claim 3, characterized in that, Both ends of the upper card holder (6) and the lower card holder (7) are integrally connected with arc-shaped plates (20). The outer ring of the arc-shaped plate (20) is integrally connected with an arc-shaped protrusion (21) along the direction of the arc-shaped plate (20). The arc-shaped protrusion (21) is thin at both ends and thick in the middle. The side of the upper clamp (10) near the upper card holder (6) and the side of the lower clamp (11) near the lower card holder (7) are integrally connected with arc-shaped snap-fit ​​plates (22). The arc-shaped protrusion (21) is located on the inner side of the snap-fit ​​plate (22). The inner side of the snap-fit ​​plate (22) is provided with snap-fit ​​grooves (24) arranged along the arc surface direction of the snap-fit ​​plate (22). The snap-fit ​​grooves (24) correspond to the arc-shaped protrusions (21). The depth of the middle part of the snap-fit ​​grooves (24) is greater than the depth of the two ends.

5. A multi-contact spring-loaded electromagnetic shielding connector according to claim 4, characterized in that, The side of the arc plate (20) is provided with a number of ratchet teeth (25) along the direction of the arc plate (20). The upper clamp (10) near the upper card seat (6) and the lower clamp (11) near the lower card seat (7) are provided with slots (26) corresponding to the ratchet teeth (25).

6. A multi-contact spring-loaded electromagnetic shielding connector according to claim 5, characterized in that, The lower card holder (7) has an arc-shaped thermal expansion pad (27) on its inner side. Gaskets (28) are integrally connected to both sides of the arc-shaped thermal expansion pad (27). Holes (29) corresponding to the plug-in connector (19) are opened on the gaskets (28). A storage interlayer filled with thermal expansion fluid is provided on the inner side of the arc-shaped thermal expansion pad (27). Liquid storage chambers (40) are provided at both ends of the outer side of the lower card holder (7) and the outer side of the upper card holder (6). A piston (41) is sealed and slidably connected to the inner side of the liquid storage chamber (40). A pin (42) is connected to the side of the piston (41). Pin grooves (43) corresponding to the pin (42) are provided on the sides of the upper clamp (10) and the lower clamp (11).

7. A multi-contact spring-loaded electromagnetic shielding connector according to claim 6, characterized in that, The lower end of the torsion spring (17) is connected to the rotating gear (44), the rotating gear (44) is rotatably connected to the bottom of the positioning cavity (15), and the side of the lower clamp (11) is rotatably connected to the adjusting screw (45) that meshes with the rotating gear (44).

8. A multi-contact spring-loaded electromagnetic shielding connector according to claim 7, characterized in that, The connector socket (1) includes a socket housing (30) and an insulator (31) nested inside the socket housing (30). Several sets of through holes are opened on the insulator (31), and pins (32) are snapped into the through holes. A flange (33) is integrally connected to the outside of the socket housing (30). A fixing hole (34) is provided on the flange (33). Several positioning grooves (38) are distributed around the inner circumference of the socket housing (30).

9. A multi-contact spring-loaded electromagnetic shielding connector according to claim 8, characterized in that, The connector plug (2) includes a fixed cylinder (35), an insulator (36) is fitted inside the fixed cylinder (35), a through hole is opened on the insulator (36), and a pin (32) is fitted inside the through hole. The socket housing (30) has a thread on the outer side of one end near the fixed cylinder (35). The outer side of the fixed cylinder (35) is rotatably connected to an internally threaded sleeve (37). The outer side of the fixed cylinder (35) has a positioning protrusion (39) corresponding to the positioning groove (38).

10. A multi-contact spring-loaded electromagnetic shielding connector according to claim 9, characterized in that, Each connector (3) includes a connector housing (4) and an insulator (23) nested inside the connector housing (4). The insulator (23) has several sets of through holes. The connector housing (4) has a thread on the inner side of one end near the connector socket (1).

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