Electrical connectors and their plugs, sockets, and shielded contacts

Abstract

This invention discloses an electrical connector and its plug, socket, and shielding contact. The connector includes a plug housing with a locking lever. The locking lever has a mounting shaft that allows it to rotate. One end of the locking lever has a groove II for engaging with a locking structure stop of the adapter socket to lock the plug to the adapter socket. The other end of the locking lever is a push-button handle. The plug and socket are connected via a push-button snap-fit ​​connection, allowing for quick locking and unlocking. The connector can be directly connected to a device panel or a metal casing on the panel, ensuring continuous shielding.

Description

Technical Field

[0001] This invention belongs to the field of electrical connector technology, specifically relating to an electrical connector and its plug, socket, and shielding contact. Background Technology

[0002] Currently, the protective shell and inner core of electrical connectors are generally separate structures, connected and locked together by threads. The connection between the plug and socket mostly uses a threaded structure, which is inefficient and lacks visual or audible feedback indicating proper connection. The shielding connection structure between the plug and cable is usually placed separately in the inner core, and the corresponding socket end needs to have appropriate shielding connection features to achieve shielding continuity after mating.

[0003] Disadvantages of existing technology: While the threaded connection of the connector head is simple to manufacture, it inevitably leads to low operational efficiency, and there is no identification or feedback after the connection is in place. In addition, since the cable shield is connected to the socket through the connector core, the socket must have shielded connection features to connect to the plug and the device housing, resulting in a complex socket structure and increased product cost. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art mentioned above, and to provide an electrical connector and its plug, socket, and shielding contact. The plug and socket are connected by a button snap-fit, which can achieve quick locking and unlocking, and has visual and audible feedback when the plug is properly engaged, thus improving both connection efficiency and reliability. The plug housing is provided with a shielding elastic structure, which can be connected to the inner shield of the plug. After mating, it can also be directly connected to the device panel or the metal housing on the panel, achieving continuity of shielding. The socket end does not require a shielding connection feature, simplifying the socket structure.

[0005] To achieve the above objectives, one objective of the present invention is to provide a plug, including a plug housing, a locking lever provided on the plug housing, an mounting shaft provided on the locking lever, the mounting shaft enabling the locking lever to rotate around it; one end of the locking lever is formed with a groove II, which is used to cooperate with the locking structure stop of the adapter socket to achieve locking of the plug and the adapter socket; the other end of the locking lever is a pressing handle.

[0006] As a preferred embodiment, a torsion spring is fitted on the mounting shaft to keep the locking lever and the buckle locked in place.

[0007] As a preferred embodiment, the plug housing is provided with a locking plate, which can slide and adjust relative to the plug housing along the plug axis. When the head seat needs to be locked, the locking plate moves towards the locking lever to a first position, with the locking plate resting against the bottom of the pressing handle to lock the pressing handle and prevent the locking lever's slot II end from accidentally lifting and causing the head seat to separate. When the head seat needs to be separated, the locking plate moves away from the locking lever to a second position to release the locking of the pressing handle, allowing the pressing handle to perform a pressing action.

[0008] As a preferred embodiment, the locking piece includes a locking base plate, on which a positioning piece is provided. One end of the positioning piece is connected to the locking base plate, and the other end is a locking end, which is used to cooperate with the groove on the top surface of the plug housing to realize the positioning of the locking piece in the first position and the second position.

[0009] As a preferred embodiment, the plug includes a plug housing and a plug core inserted into the cavity of the plug housing; the plug housing includes a shielding elastic contact mounted on the mating end face of the plug housing, one end of the shielding elastic contact being an inner shielding contact portion extending into the cavity of the plug housing for abutting against the inner core shielding component on the outer surface of the plug core, thereby achieving a shielded connection between the shielding elastic contact and the inner core shielding component; the other end of the shielding elastic contact is an outer shielding contact portion extending to the outer surface of the plug housing for achieving shielded conduction between the socket housing and the shielding elastic contact when the plug and socket are mated.

[0010] As a preferred embodiment, a bushing is installed inside the plug housing, and the cavity is formed by the bushing. The bushing is used to adapt to plug cores of different sizes and specifications.

[0011] As a preferred embodiment, the shielding elastic contact includes an inner shielding contact portion, an outer shielding contact portion, and a connecting portion. The inner shielding contact portion is provided with an inner spring piece extending into the cavity; the outer shielding contact portion is provided with an outer spring piece extending away from the cavity; and the inner shielding contact portion is connected to the outer shielding contact portion through the connecting portion.

[0012] As a preferred embodiment, the inner shielding contact portion is further provided with barbs to prevent loosening, the barbs being raised away from the cavity.

[0013] As a preferred embodiment, the plug housing or bushing is provided with a groove that mates with the barb, and one end of the barb protrudes and rests against the groove to prevent the shielding elastic contact from detaching from the plug housing after installation.

[0014] As a preferred embodiment, a positioning step is provided in the cavity of the plug housing or bushing to limit the inner core of the plug.

[0015] As a preferred embodiment, the outer shielding contact extends to the outer side wall of the plug housing, and the outer shielding contact is provided with a fastening part, which is engaged and fixed in the fastening groove of the outer side wall of the plug housing.

[0016] The second objective of this invention is to provide a socket with a metal housing that can make contact with a shielded elastic contact on the housing of an adapter plug. The socket housing is provided with a buckle, which has a guide slope I for easy insertion and a locking surface I for locking and fixing. The buckle can cooperate with the slot II of the adapter plug.

[0017] A third objective of this invention is to provide a shielding contact, including the shielding elastic contact in any of the aforementioned plugs.

[0018] The fourth objective of this invention includes the plug and socket described in any of the above claims.

[0019] Beneficial effects

[0020] Firstly, the electrical connector of this invention is designed with a locking mechanism for the headstock, including a locking lever on the plug and a latch on the socket. When the headstock is inserted, the latch pushes the button up and into the button's slot, accompanied by a "click" sound feedback, completing the locking action. When disengaging, manually pressing the end of the button causes one end of the slot to lift up and separate from the latch, thus completing the unlocking action.

[0021] Secondly, this invention improves the structure by incorporating a shielding elastic structure on the plug housing. This structure connects to the shielding of the plug's inner core. After the plug and socket are inserted, the plug can directly connect to the device panel or the metal housing on the panel, achieving shielding continuity. The socket end does not require a shielding connection feature, simplifying the socket structure. Specifically, a shielding elastic contact is provided on the plug's shielding housing component, installed at the plug's mating surface. An inner spring is provided on the inner side of the inner shielding contact portion. When the plug's inner core is inserted into the housing component, the inner spring connects to the inner core's shielding. An outer spring is provided on the outer side of the outer shielding contact portion. After the plug and socket are inserted, the outer spring connects to the socket's metal housing, forming a conductive path from the socket's metal housing to the shielding elastic contact and the inner core shielding. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the internally shielded elastic contact element of the present invention;

[0023] Figure 2 This is a schematic diagram of the bushing structure of the plug housing in this invention;

[0024] Figure 3 This is a schematic diagram of the inner core shielding component in this invention;

[0025] Figure 4 This is a schematic diagram of the electrical connector in this invention;

[0026] Figure 5 This is a structural diagram of the locking lever in this invention;

[0027] Figure 6 This is a structural diagram of the locking piece in this invention;

[0028] Figure 7 This is a structural diagram of the torsion spring in this invention;

[0029] Figure 8 This is a structural diagram of the plug housing in this invention;

[0030] Figure 9 The structure of the inner core shielding component in this invention Figure 1 ;

[0031] Figure 10 The structure of the inner core shielding component in this invention Figure 2 ;

[0032] Figure 11 This is a schematic diagram showing the connection between the terminal and the cable at the inner core shielding.

[0033] The markings in the diagram are as follows: 1. Inner shielding contact part; 11. Wall; 111. End 1; 112. End 2; 113. Inner side; 114. Outer side; 115. Inner side spring piece; 116. Barbed part; 2. Outer shielding contact part; 21. Outer contact piece; 211. Outer side spring piece; 22. Fastening part; 3. Connecting part; 31. Connecting piece; 10. Shielding elastic contact element; 20. Plug housing; 201. Fastening groove; 202. Boss; 2021. Side sliding groove; 2022. Relief groove; 203. Mounting hole; 204. First groove; 205. Second groove; 206. Step; 30. Bushing; 301. Slot I; 302. Positioning step; 40. Inner core shielding element. 401. Terminal mounting frame; 402. Cable crimping part; 403. Intermediate connection part; 404. Clamping plate; 405. Fastener; 406. Terminal insulator; 407. Terminal; 70. Cable; 701. Terminal connection; 702. Cable shielding; 703. Cable shielding layer; 80. Locking lever; 801. Slot II; 802. Guide slope II; 803. Press handle; 804. Anti-slip ridge; 805. Through hole; 81. Installation. 82. Shaft, Torsion Spring, 83. Insulating Pin, 831. Isolation Groove, 84. Locking Plate, 841. Locking Base Plate, 842. Positioning Plate, 843. Protrusion, 844. Stop Block, 845. Limiting Block, 846. Push Plate, 847. Sliding Plate, 90. Socket, 901. Socket Housing, 902. Inner Contact Surface, 903. Snap-on, 9031. Guide Inclined Surface I, 9032. Locking Surface, 100. Plug, 200. Interlocking Inner Core. Detailed Implementation

[0034] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0035] Example 1

[0036] As shown in the figure, this embodiment provides a shielding elastic contact 10. The shielding elastic contact 10 includes the following embodiments. The first embodiment is: the shielding elastic contact 10 includes an inner shielding contact part 1, an outer shielding contact part 2 and a smooth connecting part 3 integrally formed or fixedly connected. The inner shielding contact part 1 has a wall 11 that can surround and form a receiving cavity. The receiving cavity is for the inner core shield 40 to pass through. The wall 11 has an end 111, an end 112, an inner side 113 near the receiving cavity and an outer side 114 away from the receiving cavity. A plurality of inner spring pieces 115 are stamped in the circumferential direction of the wall 11. The distribution position of the inner spring pieces 115 can be set to be arranged in a row or staggered as needed. The inner spring pieces 115 are raised to one side towards the inner side 113. When the inner core shield 40 is installed into the plug housing 20, the inner spring pieces 115 abut against the inner core shield 40 and are shielded and connected to the inner core shield 40. The cross-section of the receiving cavity of the shielding elastic contact 10 is an approximately rectangular or rectangular structure, so that the wall 11 has four sides. The cross-section of the receiving cavity there is adapted to the shape of the inner core shield 40. Obviously, it can also be set to other adapted similar structures.

[0037] In this embodiment, end 111 is connected to outer shielding contact 2 via connecting part 3. Connecting part 3 is angled to end 111 and outer shielding contact 2 respectively. Outer shielding contact 2 is provided with four outer contact pieces 21. The outer contact pieces 21 are separated from each other and are distributed and connected to the end 111 on the four sides of wall 11. Several outer spring pieces 211 are stamped on the outer contact pieces 21. The distribution of the outer spring pieces 211 can be arranged in a row or staggered as needed. The outer spring pieces 211 are raised to the side away from the inner shielding contact 1. When plug 100 and socket 90 are plugged in, the end of the outer contact piece 21 abuts against the inner contact surface 902 of the socket metal shell of socket 90 to form a shielded conductive link of socket metal shell-shielded elastic contact-inner core shield 40.

[0038] The second embodiment is as follows: The shielding elastic contact 10 includes an inner shielding contact 1, an outer shielding contact 2, and a smooth connecting part 3 integrally formed or fixedly connected. The connecting part 3 is provided with a connecting piece 31, which is used to connect the inner shielding contact 1 and the outer shielding contact 2. Both the inner shielding contact 1 and the outer shielding contact 2 are metal sheet structures. The inner shielding contact 1 includes an inner contact piece, and the outer shielding contact 2 includes an outer contact piece. A plurality of inner elastic elements are stamped on the sidewall of the inner contact piece. The inner spring sheet is raised away from the outer shielding contact 2. Several outer spring sheets are stamped on the side wall of the outer contact sheet. The outer spring sheets are raised away from the inner shielding contact 1. The shielding elastic contact 10 is installed on one side wall of the plug housing 20. When the plug 100 and the socket 90 are plugged in, the end of the outer contact sheet 21 abuts against the inner contact surface 902 of the socket metal housing of the socket 90 to form a shielded conduction link of socket metal housing-shielding elastic contact-inner core shield 40.

[0039] The third embodiment is as follows: The shielding elastic contact 10 can also adopt the following structure: The shielding elastic contact 10 includes an inner shielding contact part 1, an outer shielding contact part 2, and a smooth connecting part 3 integrally formed or fixedly connected. The connecting part 3 is provided with two connecting pieces 31, which are used to connect the inner shielding contact part 1 and the outer shielding contact part 2. Both the inner shielding contact part 1 and the outer shielding contact part 2 are metal sheet structures. The inner shielding contact part 1 includes an inner contact piece composed of a first sidewall and a second sidewall, wherein an angle is formed between the first sidewall and the second sidewall. At least one sidewall of the inner contact piece is stamped with a plurality of inner spring pieces. The outer shielding contact part 1 includes an inner contact piece composed of a first sidewall and a second sidewall, wherein an angle is formed between the first sidewall and the second sidewall. At least one sidewall of the inner contact piece is stamped with a plurality of inner spring pieces. The shielding contact portion 2 includes two outer contact pieces corresponding to the first sidewall and the second sidewall respectively. At least one sidewall of the inner contact piece is stamped with a plurality of inner spring pieces. The outer contact pieces are distributed and connected to the same end position of the first sidewall and the second sidewall. At least one outer contact piece is stamped with a plurality of outer spring pieces. The shielding elastic contact 10 is installed on two adjacent sidewalls of the plug housing 20. When the plug 100 and the socket 90 are plugged in, the end of the outer contact piece abuts against the inner contact surface 902 of the socket metal housing of the socket 90 to form a shielded conductive link of the socket metal housing-shielding elastic contact-inner core shield 40.

[0040] A fourth embodiment is also provided: the shielding elastic contact 10 includes an inner shielding contact 1, an outer shielding contact 2, and a smooth connecting part 3 integrally formed or fixedly connected. The connecting part 3 is provided with three connecting pieces 31, which are used to connect the inner shielding contact 1 and the outer shielding contact 2. Both the inner shielding contact 1 and the outer shielding contact 2 are metal sheet structures. The inner shielding contact 1 includes an inner contact piece composed of a first sidewall, a second sidewall, and a third sidewall connected in sequence. The second sidewall forms an angle with the first sidewall and the third sidewall respectively. The outer shielding contact 2 includes an inner contact piece connected to the first sidewall and the third sidewall. The three outer contact pieces corresponding to the side wall, the second side wall, and the third side wall are distributed and connected to the same end position of the three side walls. Several outer elastic pieces are stamped on the outer contact pieces. The outer elastic pieces are raised to the side away from the inner shielding contact part 1. The shielding elastic contact 10 is installed on three of the side walls of the plug housing 20. When the plug 100 and the socket 90 are plugged in, the end of the outer contact piece abuts against the inner contact surface 902 of the socket metal housing of the socket 90 to form a shielded conductive link of socket metal housing-shielding elastic contact-inner core shield 40.

[0041] In this embodiment, the connecting part 3 has a flat structure. The function of the connecting part 3 is to connect the inner shielding contact part 1 and the outer shielding contact part 2. Therefore, in a preferred embodiment, the connecting part 3 is set as a connecting piece 31 that corresponds one-to-one with the number of outer contact pieces 21, so as to connect and fix the outer contact pieces 21 around the wall 11. For example, in the first embodiment described above, the number of connecting pieces 31 is 4, while in the second embodiment, the number is 1, and so on.

[0042] In this solution, in the above-mentioned embodiments, the wall 11 of the inner shielding contact part 1 is also provided with a barb 116 to prevent loosening. One end of the barb 116 is raised to one side towards the outer side 114 of the wall 11. Therefore, the direction of the barb 116 is opposite to that of the inner spring piece 115.

[0043] In this design, to increase the contact reliability of the shielded conductive link between the inner spring 115 and the outer spring 211, contact heads are provided at the ends of both the inner spring 115 and the outer spring 211. These contact heads form a certain angle with the main body of the inner spring 115 and the outer spring 211 and are smoothly connected. This contact head structure increases the contact area and reliability between the inner spring 115 and the inner core shield 40, and between the outer spring 211 and the socket housing 901, while also reducing installation resistance.

[0044] Example 2

[0045] As shown in the figure, this embodiment provides a shielded plug. The shielded plug 100 includes a plug housing 20, which has a cavity along its axial direction. In a specific embodiment (not shown in the figure), the inner shielding member 40 is directly installed in the cavity of the plug housing 20. The inner shielding member 40 is inserted through the port of the plug housing 20. A positioning step is provided at the position of the plug housing 20 within the cavity, and the inner shielding member 40 abuts against the positioning step of the plug housing 20 to be assembled into the designated position. A slot is provided on the inner wall of the cavity of the plug housing 20. When the shielding elastic contact member 10 is installed in place in the plug housing 20, the barbs 116 of the shielding elastic contact member 10 will abut against the slot, effectively preventing the shielding elastic contact member 10 from arbitrarily detaching from the plug housing 20, thereby fixing the position of the shielding elastic contact member 10 within the plug housing 20.

[0046] like Figure 9-11 The inner core shield 40 includes a terminal mounting frame 401, a cable crimping part 402, and an intermediate connecting part 403. The inner core shield 40 can be integrally molded. The terminal mounting frame 401 and the cable crimping part 402 are located at both ends of the intermediate connecting part 403. The terminal mounting frame 401 has a cavity for mounting a terminal insulator 406. The terminal 407 is inserted into the mating inner core 200. The cavity has a rounded rectangular cross-section. A retaining plate 404 is provided at one end of the terminal mounting frame 401 near the intermediate connecting part 403. The retaining plate 404 is used to contact the outer surface of the terminal insulator 406. The cable crimping part 402 engages with the slot on the surface to engage with the terminal insulator 406 and fix the terminal insulator 406. The cable crimping part 402 uses two pressure plates to firmly crimp and fix the end of the cable. The cable crimping part 402 includes two crimping springs. The crimping springs have holes for fasteners 405 to pass through. The fasteners 405 lock the two crimping springs. The two crimping springs can firmly press the cable shielding layer 703 of the cable 70. The fasteners 405 can be fastening screws or the like. This shielding structure can reliably connect the cable shielding layer 703 to the metal housing of the socket.

[0047] In another embodiment shown in the accompanying drawing, as Figure 2-4 A bushing 30 is also provided inside the cavity of the plug housing 20. The bushing 30 is used to adapt to inner core shielding components 40 of different sizes and specifications. The inner core shielding component 40 is inserted into one end of the cavity of the bushing 30. A positioning step 302 is provided at one end inside the cavity of the bushing 30. The inner core shielding component 40 abuts against the positioning step 302 of the bushing 30 to be assembled into the designated position. A slot I 301 is provided inside the cavity of the bushing 30. When the shielding elastic contact 10 is installed in the plug housing 20, the barb 116 of the shielding elastic contact 10 will abut against the slot I 301 to prevent the shielding elastic contact 10 from detaching from the plug housing 20, thereby fixing the position of the shielding elastic contact 10 inside the plug housing 20.

[0048] In this design, the bushing 30 has a cavity for installing the inner core shield 40. By replacing the bushing 30 with different models and sizes, it can be adapted to inner core shield 40 of different sizes and specifications. The outer wall of the bushing 30 is fitted with the inner wall of the cavity of the plug housing 20. The shielding elastic contact 10 is fixed on the mating end face of the plug housing 20.

[0049] In this embodiment, the head of the shielded plug 100 is equipped with a shielded elastic contact 10. The shielded elastic contact 10 is installed on the mating surface end of the plug housing 20 and includes an inner shielded contact 1, an outer shielded contact 2 and a smooth connecting part 3 integrally formed or fixedly connected. The inner shielded contact 1 has a wall 11 that can surround and form a receiving cavity. The receiving cavity is for the inner shield 40 to pass through. The wall 11 has an end 111, an end 112, an inner side 113 near the receiving cavity and an outer side 114 away from the receiving cavity. A plurality of parallel inner spring pieces 115 are stamped in the circumferential direction of the wall 11. The inner spring pieces 115 are raised towards the inner side 113. When the inner core shield 40 is installed into the plug housing 20, the inner spring pieces 115 abut against the inner core shield 40 and are shieldedly connected to the inner core shield 40. One specific implementation involves bending a metal sheet to form a receiving cavity, thereby creating a rectangular cross-section or a relatively enclosed space around a rectangular structure. This results in the wall 11 having four sides. The cross-section of the receiving cavity at this location is adapted to the shape of the receiving cavity of the bushing 30 and the inner core shield 40. The shielding elastic contact 10 can also be configured with other structures, such as the second, third, and fourth implementations of the shielding elastic contact 10 in Embodiment 1 above.

[0050] In this design, end 111 is connected to outer shielding contact 2 via connecting part 3. Connecting part 3 is angled to end 111 and outer shielding contact 2. Outer shielding contact 2 is provided with four outer contact pieces 21, which are separated from each other. The outer contact pieces 21 are distributed and connected to the end 111 on the four sides of wall 11. Outer spring pieces 211 are stamped on the outer contact pieces 21 and arranged in parallel. The outer spring pieces 211 are tilted away from the inner shielding contact 1. Outer shielding contact 2 is used to abut against the external adapter socket to achieve shielding and conduction.

[0051] In this embodiment, the connecting part 3 has a flat and smooth structure. The function of the connecting part 3 is to connect the inner shielding contact part 1 and the outer shielding contact part 2. Therefore, in a preferred embodiment, the connecting part 3 is configured as four connecting pieces 31 that are connected one-to-one with the outer contact piece 21, so as to connect and fix the outer contact piece 21 around the wall 11.

[0052] In this embodiment, a fastening groove 201 is provided on the outer side wall of the plug housing 20 near the mating end face, and a fastening part 22 that cooperates with the fastening groove 201 is provided on the side of the outer contact piece 211 away from the connecting part 3. When the shielding elastic contact 10 is installed in the plug housing 20 and in place, the fastening part 22 is tightly fastened in the fastening groove 201, which is used to fix the shielding elastic contact 10 on the outside of the plug housing 20.

[0053] In this design, the wall 11 is also provided with a barb 116 to prevent loosening. One end of the barb 116 protrudes outward 114 from the wall 11. The direction of the protrusion of the barb 116 is opposite to that of the inner spring piece 115, and the protruding end of the barb 116 points to the mating surface side. The purpose of this design is to achieve abutment and engagement between the slot I 301 in the cavity of the plug housing 20 or bushing 30 and the barb 116, thereby preventing the shielding elastic contact 10 from arbitrarily detaching from the plug housing 20 or bushing 30.

[0054] In this design, the cable 70 is inserted through the end of the cavity of the plug housing 20 and extends into the inner core shield 40 to connect with the terminal 407 inside the inner core shield 40 (the connection point between the cable 70 and the terminal is shown at 701 in the figure). A shielding shell 401 is provided outside the inner core shield 40. The shielding shell 401 is fitted onto the outside of the end of the inner core shield 40 where the terminal 407 is located. The outer wall of the inner core shield 40 is used to abut against the inner spring piece 115, thereby forming a shielded connection (the cable shielding part of the cable 70 is shown at 702 in the figure).

[0055] Example 3

[0056] This embodiment provides an electrical connector having a shielded plug 100 and a mating socket 90. The socket 90 includes a socket housing 901, on which a plug interface is provided. The inner wall of the plug interface 901 is an inner contact surface 902. A latch 903 is provided on the outer wall of the socket housing 901. The latch 903 is a protruding structure. Each mating surface of the latch 903 is provided with a guide bevel I 9031, and a locking surface 9032 is formed on the side of the latch 903 opposite to the mating surface.

[0057] This design includes a locking mechanism for connecting the plug 100 and the socket 90, as shown in the reference... Figure 2-4The locking mechanism includes a locking lever 80 and a protruding buckle 903. The locking lever 80 is on the outer wall of the plug housing 20, and the protruding buckle 903 is located on one side plane of the outer wall of the socket 90. The socket 90 refers to the end of the socket 90 that is connected to the plug housing 20. The locking lever 80 has a groove 801 at one end, which forms a guide slope 802 that cooperates with the guide slope 9031. This can reduce the insertion force when the head and seat are inserted, so that the head and seat can be locked smoothly by the guide effect without pressing the locking lever 80 during insertion. A locking surface 9032 is formed on the side of the buckle 903 opposite to the insertion surface, which is used to achieve a firm lock after the head and seat are inserted.

[0058] In this design, a through hole 805 is provided in the middle section of the locking lever 80. The through hole 805 passes through the mounting shaft 81, which is fixed to the outer wall of the plug housing 20, allowing the locking lever 80 to be pressed and rotated at a certain angle in the installation position. One end of the locking lever 80 at both ends of the mounting shaft 81 is provided with a slot II 801, and the other end is a pressing handle 803. These are used to lock the plug housing 20 after it is connected to the socket 90. Several anti-slip protrusions 804 are added to the pressing surface of the pressing handle 803 to prevent slippage during pressing. When the headstock is inserted, the protruding buckle 903 pushes the locking lever 80 up and into the slot II 801 of the locking lever 80, accompanied by a "click" sound, completing the locking action. When separating, manually press the locking lever 800 at the end of the pressing handle 803 to make the slot end lift up and separate from the buckle 903, at which point the unlocking action can be completed.

[0059] In this design, a torsion spring 82 is added between the locking lever 80 and the plug housing 20. The torsion spring 82 passes through the mounting shaft 81 and always applies a reaction force to the locking lever 80, ensuring that the locking lever 80 remains locked after being locked with the buckle 903, preventing accidental unlocking of the locking lever 80 and improving connection reliability. Specifically, the torsion spring 82 has a main spring and two supporting torsion arms extending from the end of the spring coil. The supporting torsion arms are along the central axis of the spring coil. One torsion arm abuts against the end face of the locking lever 80, and the other torsion arm abuts against the outer wall of the plug housing 20. When the pressing handle 803 of the locking lever 80 is pressed, the two supporting torsion arms of the torsion spring 82 move closer together, and the torsion spring 82 is in a tensioned state. The reaction force of the torsion spring 82 on the locking lever 80 will become increasingly larger, thus preventing accidental lifting that could lead to the unlocking of the locking lever 80.

[0060] In this design, an insulating pin 83 is also provided inside the torsion spring 82. The insulating pin 83 passes through the mounting shaft 81 and is rotatably connected to the mounting shaft 81. Isolation protrusions are provided on the outer wall of the insulating pin 83, forming isolation grooves 831 between the isolation protrusions. Each torsion spring coil of the torsion spring 82 is placed in the isolation groove 831 to achieve mutual isolation between adjacent coils. The coils are separated from each other by the isolation grooves 831, which can effectively avoid the PIM problem caused by contact between coils.

[0061] When installing the locking rod 80 in this solution, first install the torsion spring 82 and the insulating pin 83 at the corresponding positions of the plug housing 20. Two parallel bosses 202 are provided on the outer wall of the plug housing 20 along the central axis of the plug housing 20. The locking rod 80 is installed between the two bosses 202. Mounting holes 203 are provided at the corresponding positions of the two bosses 202. Then, the mounting shaft 81 passes through the mounting hole 203 of the boss 202 on one side of the plug housing 200 and extends out from the mounting hole 203 of the boss 202 on the other side. Finally, the end of the mounting shaft 81 is fixed in the mounting hole 203. The end of the mounting shaft 81 can be fixedly connected to the plug housing 1 by riveting, bonding and fixing with nuts.

[0062] This solution also includes a locking piece 84. The function of the locking piece 84 is to prevent the locking lever 80 from accidentally tilting up during normal insertion, causing the locking lever 80 to separate from the buckle 903. Two grooves are formed on the outer surface of the plug housing 20 to limit the locking piece 84 to two positions along the pushing direction. The two positions refer to the locking position and the unlocking position of the locking piece 84. Therefore, the two grooves need to be set along the axial direction of the plug housing 20. The two grooves are the first groove 204 and the second groove 205. The first groove 204 is a quarter-circumference arc groove, and the second groove 205 is a half-circumference arc groove. The locking piece 84 can adopt the following structure: the locking piece 84 includes a locking base plate 841, a positioning piece 842, and a stop block 844. A notch is formed on the pushing side of the locking base plate 841 and along the pushing direction of the locking piece 84. A positioning piece 842 is disposed in the notch. One end of the positioning piece 842 is elastically connected in the notch. A protrusion 843 is formed in the middle section of the lower end face of the positioning piece 842 for contacting the top surface of the plug housing 20. Two grooves engage to limit the position of the locking piece 84. A limiting block 845 is provided at the free end of the positioning piece 842. This limiting block 845 engages with the step 206 on the edge of the housing groove where the locking lever 80 is installed, blocking the limiting block 845 at the step 206. This limits the extreme position of the locking piece 84 in the outward pull-out unlocked state. Sliding pieces 847 are also provided on both sides of the locking base plate 841. Side sliding grooves 2021 are also provided inside the protrusions 202 on both sides of the locking piece 84. Preferably, the side sliding grooves... 2021 is located at one end of the boss 202 away from the mounting hole 203. The locking piece 84 is pushed along the central axis of the plug housing 20 within the side sliding groove 2021 by the sliding piece 847. Due to the action of the limiting block 845, the locking piece 84 is guaranteed not to disengage from the side sliding groove 2021. The stop block 844 is located at the end of the locking base plate 841 away from the notch. The stop block 844 extends from the locking base plate 841 towards the pressing handle 803 to form a stop engagement with the end stop platform of the pressing handle 803. Preferably, two stop blocks 844 are provided, and they respectively form a stop limit on the pressing handle 803 from both sides. The stop effect formed by this design is more reliable. A push plate 846 is provided between the two stop blocks 844 for convenient manual pushing and adjustment of the locking piece 84 by the operator. At the end of the boss 202, there is also a relief groove 2022 connected to the side slide groove 2021. The push plate 846 is pushed to the side of the locking rod 80 to the limit position. The push plate 846 just enters the relief groove 2022, thereby limiting the limit position of the locking piece 84 in the locked state.

[0063] In this design, the adjustment principle of the locking plate 84 is as follows: The locking plate 84 has two positions. When the locking plate 84 moves axially towards the locking lever 80 to the first position, the protrusion 843 is located in the first groove 204, and the stop block 844 supports and abuts against the tail of the pressing handle 803, preventing accidental contact with the pressing handle 803 from causing the locking lever 80 to lift and separate the head seat. When separation of the head seat is required, the locking plate 84 is pulled away from the locking lever 80 until the protrusion 843 is located in the second groove 205. At this time, the locking plate 84 is limited to the second position and no longer restricts the pressing action of the locking lever 80, allowing the two to separate normally. When the locking plate 84 is pushed to the second position away from the end of the slot II 801 of the locking lever 80, the pressing handle 803 is in the unlocked state, and the operator can unlock and separate the plug housing 20 and the socket housing 901 by manually pressing the pressing handle 803.

[0064] In this solution, the insertion direction of the plug 100 and socket 90 for quick locking is consistent with the contact direction of the outer shielding contact part 2 of the socket 90 and the plug in the aforementioned solution. That is, the shielded plug 100 and socket 90 are connected by insertion-type quick locking, and at the same time, the shielding link between the shielded plug 100, socket 90 and shielding elastic contact 10 is made conductive. This solution can achieve the continuity of the inner shielding of the plug and the shielding of the equipment chassis. The socket end does not need to be equipped with shielding connection features, which simplifies the structure of the socket 90, improves production efficiency and reduces costs.

[0065] In one embodiment of the accompanying drawings, as shown Figure 2-4 As shown, a bushing 30 is also provided inside the plug housing 20. The outer wall of the bushing 30 is fitted with the inner wall of the plug housing 20. The cavity is formed by the bushing 30. The bushing 30 is used to adapt to inner core shielding members 40 of different sizes and specifications. The inner core shielding member 40 is inserted through one end of the cavity of the bushing 30. A positioning step 302 is provided at one end of the cavity of the bushing 30. The inner core shielding member 40 abuts against the positioning step 302 of the bushing 30 to be assembled into the designated position.

[0066] In this embodiment, the head of the shielded plug 100 is equipped with a shielded elastic contact 10. The shielded elastic contact 10 is installed at the end of the plug housing 20 that is inserted into the socket. It includes an inner shielded contact 1, an outer shielded contact 2 and a smooth connecting part 3 that are integrally formed or fixedly connected. The inner shielded contact 1 has a wall 11 that can surround and form a receiving cavity. The receiving cavity is for the inner shield 40 to pass through. The wall 11 has an end 111, an end 112, an inner side 113 near the receiving cavity and an outer side 114 away from the receiving cavity. A plurality of parallel inner spring pieces 115 are stamped in the circumferential direction of the wall 11. The inner spring pieces 115 are raised towards the inner side 113. When the inner shield 40 is inserted into the plug housing 20, the inner spring pieces 115 abut against the inner shield 40 and are shieldedly connected to the inner shield 40. One specific implementation involves bending a metal sheet to form a receiving cavity, resulting in a cross-section of the central receiving cavity that is approximately rectangular or rectangular, thus giving the wall 11 four sides. The cross-section of the receiving cavity at this location is adapted to the shape of the cavity of the bushing 30 and the inner core shield 40. The shielding elastic contact 10 can also be configured in other shapes, such as the second, third, and fourth implementations of the shielding elastic contact 10 in Embodiment 1 above.

[0067] In this design, end 111 is connected to outer shielding contact 2 via connecting part 3. Connecting part 3 is angled to end 111 and outer shielding contact 2. Outer shielding contact 2 is provided with four outer contact pieces 21, which are separated from each other. The outer contact pieces 21 are distributed and connected to the end 111 on the four sides of wall 11. Outer elastic pieces 211 are stamped on the outer contact pieces 21 and arranged in parallel. The outer elastic pieces 211 are raised to the side away from the inner shielding contact 1. When plug 100 and socket 90 are plugged in, the end of the outer contact piece 21 abuts against the inner contact surface 902 of the socket metal shell of socket 90 to form a shielded conductive link of socket metal shell-shielded elastic contact-inner core shield 40.

[0068] In this embodiment, the connecting part 3 has a flat structure. The function of the connecting part 3 is to connect the inner shielding contact part 1 and the outer shielding contact part 2. Therefore, in a preferred embodiment, the connecting part 3 is configured as four connecting pieces 31 that are connected one-to-one with the outer contact piece 21, so as to connect and fix the outer contact piece 21 around the wall 11.

[0069] In this embodiment, a fastening groove 201 is provided on the outer side wall of the plug housing 20 near the mating end face, and a fastening part 22 that cooperates with the fastening groove 201 is provided on the side of the outer contact piece 21 away from the connecting part 3. When the shielding elastic contact 10 is installed in the plug housing 20 and in place, the fastening part 22 is tightly fastened in the fastening groove 201, which is used to position and fix the shielding elastic contact 10 on the outside of the plug housing 20.

[0070] In this design, the wall 11 is also provided with a barb 116 to prevent loosening. One end of the barb 116 protrudes outward 114 towards the outside of the wall 11. The protruding direction of the barb 116 is not only opposite to that of the inner spring piece 115, but the protruding end of the barb 116 also points towards the mating surface. The purpose of this design is to achieve the cooperation between the slot I 301 and the barb 116. The slot I 301 is provided in the cavity of the bushing 30. When the shielding elastic contact 10 is installed in the plug housing 20, the barb 116 will abut against the slot I 301 to prevent the shielding elastic contact 10 from detaching from the plug housing 20, thereby fixing the position of the shielding elastic contact 10 in the plug housing 20.

[0071] In this embodiment, in an embodiment without drawings, the shielded plug 100 includes a plug housing 20, a cavity formed by the plug housing 20, and the plug housing 20 has a cavity along the axial direction. The inner core shield 40 is directly installed in the cavity of the plug housing 20, and the inner core contact 40 is inserted through the port of the plug housing 20. A positioning step is provided at the position of the plug housing 20 located in the cavity, and the inner core shield 40 abuts against the positioning step of the plug housing 20 to be assembled to the designated position. In addition, a groove that cooperates with the barb 116 is also provided on the inner wall of the cavity of the plug housing 20. Its function is the same as that of the groove I 301 in the bushing 30, which will not be described again here.

[0072] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A plug, characterized in that: The device includes a plug housing with a locking lever on it. The locking lever has a mounting shaft that allows it to rotate. One end of the locking lever has a groove II for engaging with a locking mechanism stop of the adapter socket to lock the plug to the socket. The other end of the locking lever is a pressing handle. A torsion spring is fitted onto the mounting shaft to keep the locking lever and the latch locked in place. The plug includes a plug housing and a plug core inserted into the cavity of the plug housing; the plug housing includes a shielding elastic contact mounted on the mating end face of the plug housing, the shielding elastic contact includes an inner shielding contact portion, an outer shielding contact portion and a connecting portion, the inner shielding contact portion being connected to the outer shielding contact portion through the connecting portion; One end of the shielding elastic contact is an inner shielding contact portion, which extends into the cavity of the plug housing and abuts against the inner core shield on the outer surface of the plug core, thereby achieving a shielded connection between the shielding elastic contact and the inner core shield. The inner shielding contact portion is provided with an inner spring piece extending into the cavity. The other end of the shielding elastic contact is an outer shielding contact portion, which extends to the outer surface of the plug housing and is used to achieve shielded conduction between the socket housing and the shielding elastic contact when the head and socket are inserted. The outer shielding contact portion is provided with an outer spring piece extending away from the cavity. The outer shielding contact portion extends to the outer wall of the plug housing and is provided with a fastening portion, which engages and is fixed in a fastening groove on the outer wall of the plug housing.

2. A plug as described in claim 1, characterized in that: The plug housing is provided with a locking plate, which can slide and adjust relative to the plug housing along the plug axis. When the head seat needs to be locked, the locking plate moves towards the locking lever to the first position, and the locking plate rests against the bottom of the pressing handle to lock the pressing handle and prevent the locking lever's slot II end from accidentally lifting and causing the head seat to separate. When the head seat needs to be separated, the locking plate moves away from the locking lever to the second position to release the locking of the pressing handle, and the pressing handle can perform the pressing action.

3. A plug as described in claim 2, characterized in that: The locking piece includes a locking base plate, on which a positioning piece is provided. One end of the positioning piece is connected to the locking base plate, and the other end is a locking end, which is used to cooperate with the groove on the top surface of the plug housing to realize the positioning of the locking piece in the first position and the second position.

4. A plug according to claim 1, characterized in that: A bushing is installed inside the plug housing, and the cavity is formed by the bushing. The bushing is used to adapt to plug cores of different sizes and specifications.

5. A plug as described in claim 1, characterized in that: The inner shielding contact part is also provided with anti-loosening barbs, which are raised away from the cavity.

6. A plug as described in claim 5, characterized in that: The plug housing or bushing is provided with a groove that mates with the barb. One end of the barb protrudes and rests against the groove to prevent the shielding elastic contact from detaching from the plug housing after installation.

7. A plug according to claim 1, characterized in that: A positioning step is provided inside the cavity of the plug housing or bushing to limit the inner core of the plug.

8. A shielding contact, characterized in that: It is the shielded elastic contact in the plug according to any one of claims 1-7.

9. An electrical connector, characterized in that: The plug and the socket adapted to the plug according to any one of claims 1-7; the socket housing is a metal housing, which can make contact and conduct with the shielded elastic contact on the housing of the adapter plug, the socket housing is provided with a buckle, the buckle is provided with a guide slope I for easy insertion and a locking surface I for locking and fixing, and the buckle can cooperate with the slot II of the adapter plug.

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