Metal shielding connector

Abstract

The invention discloses a metal shielding connector which comprises a connector plug, a connector socket and a high-voltage interlocking safety mechanism. The outer surface of the connector socket is connected with a U-shaped metal elastic sheet; when the connector plug and the connector socket are butted and locked, the plug metal shell and the U-shaped metal elastic sheet form first elastic electric contact; the connector socket and the equipment mounting panel form second elastic electric contact through the U-shaped metal elastic sheet; a trigger unit of the high-voltage interlocking safety mechanism, which can be triggered by the locking piece, is used for controlling the on-off of a high-voltage interlocking signal loop; the locking piece is located on the connector plug, and the connector socket is provided with a locking matching part matched with the locking piece; when the locking piece is operated to be in a complete locking state, the triggering unit can be triggered, and the high-voltage interlocking signal loop can be conducted. Through linkage of the high-voltage interlocking safety mechanism and the locking structure, it is ensured that a circuit is switched on only after the connector is completely connected and is switched off synchronously when the connector is separated, and the electric shock risk in the plugging and unplugging process can be greatly reduced.

Description

Technical Field

[0001] This application relates to the technical field of metal shielded connectors, and more particularly to a metal shielded connector. Background Technology

[0002] In the signal and power transmission systems of high-voltage electrical equipment, metal-shielded connectors are core components that ensure transmission stability, electromagnetic interference resistance, and operational safety. The continuity of their shielding structure and the reliability of high-voltage interlocking directly determine the operational risks of the equipment.

[0003] In the existing technology, the socket and plug of the connector and the shielding connection of the equipment mounting panel mostly adopt the hard contact method. Affected by the processing tolerance, assembly error and micro deformation caused by equipment vibration, contact gaps or poor contact are prone to occur. It is impossible to form a complete shielding link from the cable shielding layer to the equipment panel, and the anti-electromagnetic interference capability is weak.

[0004] Meanwhile, the high-voltage interlock safety mechanism and locking structure lack precise linkage. Existing interlock triggers are mostly directly related to plug insertion and removal actions, rather than being bound to the locking state. This can easily lead to situations where the high-voltage circuit is connected before the plug is fully locked, posing a significant safety hazard of plugging and removing while the plug is energized. Summary of the Invention

[0005] The purpose of this invention is to provide a metal shielded connector that can solve the above-mentioned problems existing in the prior art.

[0006] To achieve the above objectives, this application adopts the following technical solution: A metal-shielded connector is provided, including a connector plug, a connector socket, and a high-voltage interlocking safety mechanism; The connector plug includes a plug metal housing; The connector socket includes a socket metal housing with a U-shaped metal spring attached to its outer surface; when the connector plug is mated and locked with the connector socket, the plug metal housing and the U-shaped metal spring form a first elastic electrical contact; the connector socket forms a second elastic electrical contact with the device mounting panel through the U-shaped metal spring. The high-voltage interlock safety mechanism includes a triggering unit disposed on the connector socket and triggered by an external locking element. The contact state of the triggering unit is used to control the on / off state of the high-voltage interlock signal circuit. The locking element is located on the connector plug, and the connector socket is provided with a locking engagement part that cooperates with the locking element; When the locking element is operated to the fully locked state, the triggering unit can be triggered and the high-voltage interlock signal circuit can be turned on.

[0007] Preferably, a shielding connection structure for fixing the shielding mesh is provided at the tail end of the metal shell of the plug, the shielding connection structure comprising: The U-shaped shielding mounting platform located at the tail end of the metal housing of the plug, the shielding mesh covering the U-shaped shielding mounting platform, and the pressure plate and locking fasteners that press the shielding mesh onto the U-shaped shielding mounting platform.

[0008] Preferably, the U-shaped metal spring is interference-fitted into the elongated grooves on the top and bottom walls of the socket's metal housing, and the arched portion in the middle of the U-shaped metal spring protrudes from the surface of the socket's metal housing.

[0009] Preferably, the triggering unit includes at least two microswitches disposed on the connector socket, and the normally open contacts of all the microswitches are connected in series.

[0010] Preferably, the high-voltage interlock signal circuit is allowed to conduct only when all of the microswitches are triggered.

[0011] Preferably, the locking element is a screw screwed into the locking mating part, and the end of the screw is used to press down the elastic trigger arm of the micro switch during the tightening process.

[0012] Preferably, a baffle plate is connected to the U-shaped shielding mounting platform, and the baffle plate is used to isolate sub-cables of different polarities on the connecting cable.

[0013] Preferably, in the connected state, the shielding mesh forms a continuous shielding grounding path through the plug's metal shell, the U-shaped metal spring, and the equipment mounting panel.

[0014] Preferably, the insulator of the connector socket is provided with a sleeve, the sleeve being used to connect a female connector disposed on the connector socket, and the end of the female connector being recessed in the sleeve.

[0015] Preferably, the pressure plate is arranged along the periphery of the U-shaped shielding mounting platform to uniformly press the shielding mesh onto the U-shaped shielding mounting platform.

[0016] The beneficial effects of this application are as follows: By linking the high-voltage interlock safety mechanism with the locking structure, the interlock circuit is only activated when the locking element is fully locked, ensuring that the circuit is only connected after the connector is fully connected and the power is simultaneously cut off upon disconnection, significantly reducing the risk of electric shock during insertion and removal. Simultaneously, the dual-contact series design requires both contacts to be triggered simultaneously to activate the circuit, enhancing safety redundancy and preventing high-voltage misconnection due to the failure of a single unit. Furthermore, by constructing a continuous shielded grounding path consisting of a shielding mesh, a metal plug housing, a U-shaped metal spring, and an equipment mounting panel, end-to-end electromagnetic shielding is achieved, preventing internal electrical signals from radiating outwards and interfering with surrounding equipment, and also isolating external electromagnetic noise to avoid signal distortion.

[0017] By uniformly pressing the shielding mesh onto the U-shaped shielding mounting platform, shielding breaks caused by incomplete local pressing are avoided, thus improving contact continuity. Furthermore, based on the interference fit of the U-shaped metal spring clips and the central arch protruding from the outer shell, reliable electrical contact with the plug's metal shell and the equipment mounting panel 400 is ensured through elastic compression during docking / installation, further enhancing the stability of the shielding circuit and adapting to complex operating conditions such as vibration. Attached Figure Description

[0018] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the metal shielded connector structure according to an embodiment of this application; Figure 2 This is a cross-sectional structural schematic diagram of a metal shielded connector according to an embodiment of this application; Figure 3 This is a cross-sectional view of the metal shielded connector plug and connector socket after separation, according to an embodiment of this application. Figure 4 This is a schematic diagram of the connector plug according to an embodiment of this application; Figure 5 This is a schematic diagram of the exploded structure of a connector plug according to an embodiment of this application; Figure 6 This is a schematic diagram of the connector plug described in one embodiment of this application, viewed in cross-section along the connecting cable axis; Figure 7 This is a schematic diagram of the connector plug described in one embodiment of this application, viewed in cross-section along the male connector axis. Figure 8 This is a cross-sectional structural schematic diagram of the connector plug's connecting cable and copper busbar connecting components according to an embodiment of this application; Figure 9 This is a schematic diagram of the connector socket according to an embodiment of this application; Figure 10This is a schematic diagram of the exploded structure of a connector socket according to an embodiment of this application; Figure 11 This is a schematic diagram of the connector socket described in one embodiment of this application, viewed in cross-section along the female connector. Figure 12 This is a schematic diagram of the structure of the U-shaped metal spring of the connector socket according to an embodiment of this application.

[0020] In the picture: 100. Metal-shielded connector; 110. High-voltage interlock safety mechanism; 111. Trigger unit; 111a. Micro switch; 111b. Elastic trigger arm; 111c. Receiving cavity; 111d. Support shaft; 111e. Snap ring; 112. Locking element; 113. Locking mating part; 114. Hexagonal nut; 200. Connector plug; 210. Plug metal housing; 220. Shielded connection structure; 221. U-shaped shielded mounting platform; 222. Pressure plate; 223. Locking fastener; 230. Plug housing; 250. Shielding cavity; 251. Through hole; 251a. Countersunk groove; 252. Grid plate; 260. Back cover; 261. Bend; 280. Copper busbar connection component; 281. U-shaped copper busbar; 282. Metal tube; 290. Male connector; 291. Protective component; 300. Connector socket; 310. Socket metal housing; 311. Long strip groove; 330. Female connector; 340. U-shaped metal spring; 341. Flexible arm; 350. Socket housing; 360. C-shaped retaining ring; 370. Anti-rotation structure; 371. Flat surface; 372. Mating surface; 380. Fixing structure; 400. Equipment mounting panel; 500, Connecting cable; 501, Sub-cable; 501b, Grounding wire; 600. Shielding mesh. Detailed Implementation

[0021] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] In fields such as new energy vehicles and energy storage systems, high-voltage connectors are key components for ensuring safe and reliable power transmission. Currently, high-voltage connectors are energized for a certain period during insertion and removal, posing a safety hazard. Furthermore, the connection between the connector socket 300 and the connector plug 200 cannot be guaranteed to remain fully locked and closed before energization, and power may be cut off at any time when opening. Therefore, there are certain risks to operators during the installation or insertion / removal of high-voltage connectors.

[0025] Meanwhile, existing high-voltage connectors for flat cables typically use cable ties to bind the shielding mesh 600 to the connector's metal housing to achieve conductivity. However, this method of tightening cable ties lacks a fixed tightening standard, posing a risk of improper binding by workers leading to shielding conductivity failure.

[0026] Based on this, the present disclosure provides a metal shielded connector 100, a connector plug 200, and a connector socket 300 to improve the above-mentioned problems.

[0027] On the one hand, please refer to Figures 1 to 12This disclosure provides a metal-shielded connector 100, including a connector plug 200, a connector socket 300, and a high-voltage interlock safety mechanism 110. The connector plug 200 and connector socket 300 are interconnected to achieve circuit conduction. Typically, a connecting cable 500 is connected to the connector plug 200, and the connector socket 300 is used to connect to a device mounting panel 400. The high-voltage interlock safety mechanism 110 serves as a protective module, ensuring that circuit conduction is only permitted after the connector plug 200 and connector socket 300 are fully connected; and ensuring that the connector plug 200 and connector socket 300 are de-energized when separated. Therefore, the high-voltage interlock safety mechanism 110 improves the safety of the metal-shielded connector 100 during insertion and removal, reducing the risk of electric shock to users.

[0028] Furthermore, the connector plug 200 includes a plug metal housing 210, the tail end of which is provided with a shielding connection structure 220 for fixing the shielding mesh 600. The shielding connection structure 220 is used to prevent the electrical signals transmitted inside the metal shielded connector 100 from radiating electromagnetic waves outward, thus avoiding interference with the normal operation of surrounding electronic equipment. At the same time, it is used to block electromagnetic noise from the external environment from entering the metal shielded connector 100, preventing noise from being superimposed on the transmitted signal and causing signal distortion, bit errors, and other problems.

[0029] Furthermore, the connector socket 300 includes a socket metal housing 310, the outer surface of which is connected to a U-shaped metal spring 340; when the connector plug 200 is mated and locked with the connector socket 300, the plug metal housing 210 and the U-shaped metal spring 340 form a first elastic electrical contact; the connector socket 300 forms a second elastic electrical contact with the equipment mounting panel 400 through the U-shaped metal spring 340.

[0030] For example, by providing a U-shaped metal spring 340 on the socket metal housing 310 of the connector socket 300 for electrical contact with the connector socket 300 and the device mounting panel 400, the connector plug 200, the connector socket 300, the connector socket 300, the connector mounting panel 400, and the shielding connection mechanism are interconnected during the connection process, thereby improving the overall shielding effect of the metal shielded connector 100.

[0031] Furthermore, the high-voltage interlock safety mechanism 110 includes a trigger unit 111 disposed on the connector socket 300 and triggerable by an external locking member 112. The contact state of the trigger unit 111 is used to control the on / off state of the high-voltage interlock signal circuit.

[0032] The locking element 112 is located on the connector plug 200, and the connector socket 300 is provided with a locking engagement part 113 that mates with the locking element 112. When the locking element 112 is operated to the fully locked state, the trigger unit 111 can be triggered and the high-voltage interlock signal circuit can be turned on.

[0033] For example, during normal use of the metal-shielded connector 100, the connector socket 300 and the equipment mounting panel are typically in a fixed state for extended periods, with electrical connection achieved by inserting and removing the connector plug 200 and connector socket 300. Therefore, by incorporating the high-voltage interlock safety mechanism 110 onto the connector socket 300, the structural stability of the high-voltage interlock safety mechanism 110 can be ensured, and the impact of the connector plug 200 on the high-voltage interlock safety mechanism 110 during insertion and removal can be reduced.

[0034] The triggering unit 111 of the high-voltage interlock safety mechanism 110 adopts an external locking triggering structure, so that the safety mechanism of the high-voltage interlock safety mechanism 110 is triggered by an external mechanism. For example, the locking member 112 provided on the connector plug 200 can lock the connector plug 200 and the connector socket 300, and can also trigger the triggering unit 111 of the high-voltage interlock safety mechanism 110, thus unifying the locking and triggering functions. Furthermore, this arrangement ensures that the high-voltage interlock safety mechanism 110 can only be unlocked by the locking member 112 when the connector plug 200 and the connector socket 300 are connected.

[0035] In one embodiment, the shielding connection structure 220 includes a U-shaped shielding mounting platform 221 located at the tail end of the plug metal housing 210, a shielding mesh 600 covering the U-shaped shielding mounting platform 221, a pressure plate 222 pressing the shielding mesh 600 onto the U-shaped shielding mounting platform 221, and a locking fastener 223.

[0036] For example, a U-shaped shielding mounting platform 221 protruding from the surface of the plug metal housing 210 is provided to facilitate the installation of the shielding mesh 600 on the U-shaped shielding mounting platform 221.

[0037] The area enclosed by the U-shaped shielding mounting platform 221 connects to the interior of the plug metal housing 210, through which the connecting cable 500 enters the interior of the plug metal housing 210. The shielding mesh 600 covers the connecting cable 500 and extends its end onto the U-shaped shielding mounting platform 221, communicating with the socket metal housing 310. This achieves full-path continuity from the connecting cable 500 to the metal shielded connector 100. When the end of the shielding mesh 600 is connected to the U-shaped shielding mounting platform 221, it is permissible to press the end of the shielding mesh 600 onto the U-shaped shielding mounting platform 221 using a pressure plate 222, while simultaneously locking the pressure plate 222 using a locking fastener 223. The locking fastener 223 can be a locking screw or a locking bolt, but is not limited to these; the specific characteristics of the locking fastener 223 can be determined according to actual needs.

[0038] In one embodiment, a U-shaped metal spring 340 is interference-fitted in the elongated groove 311 on the top and bottom walls of the socket metal housing 310, and the central arched portion of the U-shaped metal spring 340 protrudes from the surface of the socket metal housing 310.

[0039] For example, U-shaped metal springs 340 are connected to the top and bottom walls of the socket metal housing 310, one for connecting to the plug metal housing 210 and the other for connecting to the device mounting panel 400. By having the arched portion of the U-shaped metal spring 340 protrude from the surface of the socket metal housing 310, the arched portion is compressed during the connection between the connector plug 200 and the connector socket 300, and between the connector socket 300 and the device mounting panel 400, thus ensuring a stable power connection. Simultaneously, the U-shaped metal spring 340 ensures electrical conductivity between the plug metal housing 210, the socket metal housing 310, and the device mounting panel 400. Combined with the shielding mesh 600 located on the plug metal housing 210, this improves the overall shielding effect of the metal shielded connector 100.

[0040] In the connected state, the shielding mesh 600 forms a continuous shielding grounding path through the plug metal shell 210, the U-shaped metal spring 340, and the equipment mounting panel 400.

[0041] In one embodiment, the trigger unit 111 includes at least two microswitches 111a disposed on the connector socket 300, and the normally open contacts of all the microswitches 111a are connected in series.

[0042] For example, by setting two microswitches 111a, and the normally open contacts of the two microswitches 111a are connected in series, the power supply of the high-voltage interlock safety mechanism 110 can be realized only when the two microswitches 111a are triggered at the same time.

[0043] Understandably, the high-voltage interlock safety mechanism 110 is configured such that the high-voltage interlock signal circuit is allowed to conduct only when all microswitches 111a are triggered.

[0044] Specifically, two microswitches 111a are connected to the control circuit of the metal shielded connector 100. When the two microswitches 111a are triggered at the same time, the control circuit allows the circuit of the metal shielded connector 100 to conduct. Otherwise, the circuit of the metal shielded connector 100 cannot conduct.

[0045] In one embodiment, the locking member 112 is a screw that screws into the locking engagement part 113, and the end of the screw is used to press down the elastic trigger arm 111b of the micro switch 111a during the tightening process.

[0046] Specifically, the screw, during its rotation, triggers the elastic trigger arm 111b of the micro switch 111a. On one hand, the screw can be used to lock the connector plug 200 and the connector socket 300; on the other hand, it can trigger the micro switch 111a, thus combining and unifying the two functions.

[0047] In one embodiment, a baffle plate 252 is connected to the U-shaped shielding mounting platform 221. The baffle plate 252 is used to isolate the sub-cables 501 of the connecting cables 500 of different polarities.

[0048] For example, connector plug 200 is used to connect connector cable 500.

[0049] The connecting cable 500 consists of four sub-cables 501: three three-phase and one ground wire. A U-shaped shielded mounting platform 221 at the tail of the connector plug 200 is provided to isolate these four connecting cables 500 of different polarities. By isolating the four sub-cables 501, the distance between adjacent sub-cables 501 can be guaranteed, preventing insufficient electrical distance and insulation failure caused by stretching and deformation of the connecting cable 500 during wiring and fixing on the equipment.

[0050] In one embodiment, a sleeve is provided on the insulator 320 of the connector socket 300. The sleeve is used to connect the female connector 330 provided on the connector socket 300, and the end of the female connector 330 is recessed in the sleeve.

[0051] For example, a sleeve coaxial with the female connector 330 is provided at the front end of the insulator 320 of the connector socket 300, and the female connector 330 is disposed within the sleeve. The sleeve protects the female connector 330, preventing direct contact between the user and the female connector 330. Simultaneously, the sleeve also serves as a positioning mechanism, positioning the connector socket 300 at the required connection position when connecting to the equipment mounting panel 400, preventing direct contact between the female connector 330 and the equipment mounting panel 400.

[0052] In one embodiment, the pressure plate 222 is arranged around the periphery of the U-shaped shielding mounting platform 221 to uniformly press the shielding mesh 600 onto the U-shaped shielding mounting platform 221.

[0053] Understandably, the pressure plate 222, adapted to the length of the U-shaped shielding mounting platform 221, along with multiple locking fasteners 223 distributed along the length, can evenly compress the shielding mesh 600, avoiding shielding breaks caused by localized inadequate compression, improving the continuity of contact between the shielding mesh 600 and the plug metal shell 210, and enhancing electromagnetic shielding effectiveness. Simultaneously, evenly compressing the shielding mesh 600 reduces the risk of loosening under vibration conditions, improving structural durability.

[0054] As can be seen, the metal-shielded connector 100 provided in this disclosure is linked to the locking structure via a high-voltage interlock safety mechanism 110. The interlock circuit is only activated when the locking element 112 is fully locked, ensuring that the circuit is only connected after the connector is fully connected and is simultaneously de-energized upon disconnection, significantly reducing the risk of electric shock during insertion and removal. Simultaneously, the dual-contact series design requires both contacts to be triggered simultaneously to activate the circuit, enhancing safety redundancy and avoiding the risk of high-voltage mis-connection due to the failure of a single unit. Furthermore, by constructing a continuous shielded grounding path of "shielding mesh 600 - plug metal shell 210 - U-shaped metal spring 340 - equipment mounting panel 400," full-link electromagnetic shielding is achieved, preventing internal electrical signals from radiating outwards and interfering with surrounding equipment, and also isolating external electromagnetic noise to prevent signal distortion.

[0055] By uniformly pressing the shielding mesh 600 onto the U-shaped shielding mounting platform 221, shielding breaks caused by incomplete local pressing are avoided, thus improving contact continuity. Furthermore, based on the interference fit of the U-shaped metal spring 340, with its central arch protruding from the outer shell, reliable electrical contact with the plug's metal shell 210 and the equipment mounting panel 400 is ensured through elastic compression during docking / installation, further enhancing the stability of the shielding circuit and adapting to complex operating conditions such as vibration.

[0056] On the other hand, based on the metal shielded connector 100 provided in the above embodiments, this disclosure also provides a connector plug 200 that can be applied to the metal shielded connector 100 mentioned in the above embodiments.

[0057] Please see Figures 4 to 8 This disclosure provides a connector plug 200, which includes a plug housing 230, a connecting cable 500, and a shielding mesh 600. The plug housing 230 is formed by insert injection molding of a plug metal outer shell 210 and an insulator 320. The plug metal outer shell 210 is located around the insulator 320 and serves to form a shielded circuit between it and the connector socket 300; simultaneously, the insulator 320 isolates the connecting cable 500 from the plug metal outer shell 210, improving safety.

[0058] For example, the plug housing 230 is injection molded using a plug metal shell 210 and an insulator 320 insert. On the one hand, this ensures a firm connection between the two and strong overall integrity, enabling it to withstand mechanical impacts under plugging, unplugging, and vibration conditions, thus improving structural stability. On the other hand, the metal shell can directly form a shielded circuit with the connector socket 300, providing a basis for electromagnetic shielding. The insulator 320 effectively isolates the connecting cable 500 from the metal shell, avoiding safety hazards such as leakage and improving electrical safety.

[0059] The connecting cable 500 is fixedly connected to the plug housing 230. The connecting cable 500 includes sub-cables 501 with multiple flat cores, which are spaced apart on the plug housing 230. In this embodiment, the connecting cable 500 adopts a flat wire structure, including three sub-cables 501 for three phases and one grounding sub-cable 501. The connecting cable 500 uses sub-cables 501 with multiple flat cores and is spaced apart to meet the high-voltage wiring requirements of the three-phase and four-group grounding sub-cables 501. The flat cores facilitate current conduction, and the spaced layout ensures the electrical distance between sub-cables 501 of different polarities, avoids insulation failure caused by wiring stretching and deformation, and reduces signal interference between sub-cables 501, thus improving the stability of electrical conduction.

[0060] The shielding mesh 600 is used to cover the connecting cable 500. The ends of the shielding mesh 600 are evenly distributed on the plug metal housing 210 along the circumference of the connecting cable 500 and are detachably fixed to the plug metal housing 210.

[0061] For example, the shielding mesh 600 covers the connecting cable 500, with its ends evenly distributed circumferentially on the plug's metal housing 210, achieving full circumferential contact between the shielding mesh 600 and the metal housing. This significantly increases the contact area and enhances the integrity of electromagnetic shielding. By setting the shielding mesh 600, it can both block the outward radiation of internal electrical signals and isolate the intrusion of external electromagnetic noise, ensuring signal transmission quality. Simultaneously, the shielding mesh 600 and the metal housing are detachable and fixable, facilitating future inspection and replacement of the shielding mesh 600 or the connecting cable 500, thus improving maintenance convenience.

[0062] In one embodiment, the plug metal housing 210 has a protrusion extending from its surface along the periphery of the connecting cable 500, and the end of the shielding mesh 600 is disposed on the protrusion. It should be noted that the protrusion on the plug metal housing 210 in this embodiment may be consistent with the structure of the U-shaped shielding mounting platform 221 mentioned in Embodiment 1. However, it is not limited to this, and the structural features of the protrusion can be adjusted accordingly based on specific usage requirements.

[0063] Specifically, the protrusion extends from the outer shell surface, forming a dedicated assembly positioning surface for the shielding mesh 600. This allows for rapid circumferential positioning of the shielding mesh 600's ends, preventing misalignment or displacement during assembly. It ensures the shielding mesh 600 is evenly distributed circumferentially along the connecting cable 500, guaranteeing comprehensive contact between the shielding mesh 600 and the metal shell, thus laying the foundation for a stable shielding circuit. Simultaneously, the protrusion increases the contact area between the shielding mesh 600 and the plug's metal shell 210, reducing contact resistance and improving the continuity of the shielding circuit. This effectively blocks internal electrical signals from radiating outwards and better isolates external electromagnetic noise, further optimizing the shielding effect.

[0064] Furthermore, the boss can serve as a support structure at the end of the shielding mesh 600. When it is subsequently fixed with the pressure plate 222 and the fastener 223, the pressure can be concentrated on the contact surface between the shielding mesh 600 and the boss, avoiding localized incomplete pressing caused by pressure dispersion. At the same time, the boss can restrict the axial movement of the shielding mesh 600, reducing the risk of the shielding mesh 600 loosening or falling off under vibration conditions.

[0065] In one embodiment, the plug housing 230 is provided with a shielding cavity 250 and a through hole 251 that communicates with the shielding cavity 250 and is used for the cable 500 to pass through; a copper busbar connecting component 280 is provided inside the shielding cavity 250, and the cable 500 passes through the through hole 251 and is connected to the copper busbar connecting component 280.

[0066] Understandably, the shielding cavity 250 forms a closed metal shielding space, completely enclosing the copper busbar connection component 280. This effectively blocks the electromagnetic signals of the copper busbar connection component 280 from radiating outwards, while also isolating external electromagnetic noise from intruding and preventing interference with signal transmission. Combined with the overall shielding structure of the plug's metal shell 210, and using the hole 251 as the only channel for cables to enter and exit the shielding cavity 250, the number of breakpoints in the shielding circuit can be reduced, further improving the overall electromagnetic shielding effectiveness.

[0067] Meanwhile, the hole 251 provides a dedicated passage for the connecting cable 500, limiting the cable's entry and exit path and preventing the multiple sub-cables 501 from being randomly distributed within the plug housing 230. This ensures the accuracy of the connection between the sub-cables 501 and the copper busbar connection component 280. Furthermore, the hole 251 can cooperate with the cable insulation layer to reduce cable movement under vibration conditions, reduce the risk of core wear and short circuits, and improve wiring stability.

[0068] In one embodiment, the through hole 251 is a single hole, and a recessed groove 251a is provided along its edge. The recessed groove 251a is used to connect a grid plate 252 that can distribute multiple sub-cables 501 at intervals; or multiple through holes 251 are provided, and the multiple through holes 251 are equally spaced.

[0069] Specifically, when the through hole 251 adopts a single-hole design, a positioning baffle 252 is set on the edge of the through hole 251 using a recess 251a, which allows the baffle 252 to accurately separate sub-cables 501 of different polarities. This method facilitates the connection between the cable 500 and the copper busbar connection component 280 inside the plug metal housing 210, increasing the operating space during connection; at the same time, the setting of the recess 251a allows the top of the baffle 252 to be flush with the edge of the through hole 251, facilitating the installation of the shielding mesh 600.

[0070] Furthermore, when multiple through holes 251 are used and spaced apart, the multiple equidistant through holes 251 directly allocate an independent channel to each sub-cable 501, which can ensure that the sub-cables 501 maintain a compliant electrical distance and avoid the risk of wire core wear, insulation failure or short circuit caused by wiring pulling deformation, vibration displacement.

[0071] Specifically, by orderly separating the sub-cables 501, electromagnetic coupling interference between adjacent sub-cables 501 can be reduced (such as interference of high-voltage and high-current sub-cables 501 to signal cables); at the same time, the orderly wiring method reduces friction and compression between sub-cables 501, reduces the probability of wire core breakage and poor contact, and ensures the stability of high-voltage and high-current transmission.

[0072] In one embodiment, the plug housing 230 has an opening on one side, and a rear cover 260 for closing the opening is detachably connected at the opening position.

[0073] Specifically, the opening on one side of the plug housing 230 provides ample assembly space for the internal core components, avoiding the cumbersome operation of inserting components through narrow channels as required by traditional enclosed housings, thus reducing assembly difficulty and improving assembly efficiency. At the same time, the detachable design of the rear cover 260 allows for direct access to the internal structure without disassembling the entire plug housing 230 during later maintenance. This facilitates troubleshooting, replacement of damaged components, and maintenance of shielding connections, significantly reducing maintenance costs and downtime.

[0074] In addition, after the back cover 260 closes the opening, the plug housing 230 can form a complete closed cavity, which can effectively prevent dust, water vapor, oil, foreign objects and other substances from entering the interior, protect key parts such as copper busbar connection points and sub-cable 501 connectors from environmental corrosion, and improve the overall protection level of the plug.

[0075] In one embodiment, the through hole 251 is a single hole, and the through hole 251 is connected to the opening; and the rear cover 260 is provided with a bending portion 261, and when the rear cover 260 is connected to the plug housing 230, the top of the bending portion 261 is flush with the plane 371 where the end of the shielding mesh 600 is located.

[0076] Specifically, the through hole 251, located near and connected to the opening, forms a through-type wiring channel. During assembly, multiple sub-cables 501 can be inserted from the opening of the housing and then passed through the through hole 251, eliminating the need to force their way through the narrow through hole 251 from the outside. This is especially suitable for the neat arrangement of multiple flat sub-cables 501. The bent portion 261 of the back cover 260 is flush with the end of the shielding mesh 600. On the one hand, it provides lateral restraint to the end of the shielding mesh 600, preventing the shielding mesh 600 from shifting or loosening axially or circumferentially under vibration or insertion / removal conditions. This ensures a reliable fit between the shielding mesh 600 and the protrusion on the metal housing 210 of the plug, maintaining the continuity of the shielding circuit. On the other hand, the bent portion 261 can seal the gap between the end of the shielding mesh 600 and the opening of the housing, reducing electromagnetic leakage channels, further improving electromagnetic shielding effectiveness, and preventing external noise intrusion or internal signal radiation.

[0077] Furthermore, the bent portion 261 of the back cover 260 is flush with the end of the shielding mesh 600, so that after the back cover 260 closes the opening, the bent portion 261 can form a tightly fitting protective surface with the end of the shielding mesh 600 and the metal shell 210 of the plug, reducing the intrusion path of impurities such as dust and moisture.

[0078] In one embodiment, a pressure plate 222 is also included, which is detachably connected to the plug housing 230 along the circumference of the connecting cable 500, for fixing the shielding mesh 600 to the plug housing 230. The pressure plate 222 is arranged circumferentially along the connecting cable 500, which can form a full-circumferential wrapping compression on the end of the shielding mesh 600. Compared with the partial fixing structure 380 (such as single-point screw crimping), the clamping force is more uniform, which can ensure that the shielding mesh 600 and the plug housing 230 are fully fitted without gaps, avoiding shielding breaks caused by partial crimping. At the same time, the circumferential fixing can restrict the movement of the shielding mesh 600 along the axial and circumferential directions, greatly reducing the risk of the shielding mesh 600 loosening or falling off under vibration and plugging / unplugging conditions, and ensuring the long-term continuity of the shielding circuit.

[0079] In one embodiment, the copper busbar connection component 280 includes a plurality of U-shaped copper busbars 281, one end of which is used to be fixedly connected to the sub-cable 501, and the other end is connected to a male connector 290; wherein, the end of the sub-cable 501 is fitted with a metal tube 282, and the U-shaped copper busbars 281 are fixedly connected to the metal tube 282.

[0080] Specifically, by sleeved with a metal tube 282 (such as brass or copper) at the end of the sub-cable 501, the metal tube 282 and the U-shaped copper busbar 281 form a surface contact, which effectively increases the contact area; at the same time, the U-shaped copper busbar 281 has a large conductive cross-sectional area, and the overall contact resistance is significantly reduced, thus greatly reducing the energy loss during high voltage and high current transmission and avoiding insulation aging caused by local overheating.

[0081] For example, the combined structure of the metal tube 282 and the U-shaped copper busbar 281 significantly increases the effective cross-sectional area of ​​the conductive path, and the U-shaped copper busbar 281 has high conductivity, enabling it to stably carry large currents. Simultaneously, the metal tube 282 wraps and solidifies the multiple strands of the sub-cable 501, resulting in a more uniform current distribution when current is conducted from the sub-cable 501 to the U-shaped copper busbar 281, avoiding excessively high local electric field strength caused by concentrated current in a single filament. Furthermore, the structure of the U-shaped copper busbar 281 can be adapted to the connection angle between the sub-cable 501 and the male connector 290, reducing bending losses in the current conduction path, further reducing the risk of partial discharge, and improving electrical safety in high-voltage scenarios.

[0082] Furthermore, the fixing of the metal tube 282 to the sub-cable 501 can disperse the axial tension of the sub-cable 501 to the metal tube 282, and then transmit it to the plug housing 230 through the firm connection between the metal tube 282 and the U-shaped copper busbar 281, thus avoiding the tension from acting directly on the wire core, which could lead to wire core breakage or desoldering.

[0083] In one embodiment, the plug housing 230 is connected to a protective member 291 at one end of the male connector 290, which includes a plurality of sleeves for accommodating the male connector 290; and a gap is formed between the inner periphery of the sleeves and the outer periphery of the male connector 290.

[0084] Specifically, the sleeve forms a semi-enclosed cavity, which can effectively prevent foreign objects such as dust, water vapor, oil, and metal shavings from entering the contact area of ​​the male connector 290, avoiding poor contact, short circuits, or wear caused by foreign objects; the sleeve can protect the male connector 290 from collisions and scratches from external objects during plug insertion, transportation, and storage, and prevent the failure of the connection due to the decrease in conductivity caused by the wear of the surface plating of the male connector 290.

[0085] Furthermore, each male connector 290 corresponds to an independent sleeve. The sleeve, through its rigid connection with the plug housing 230, provides precise axial and radial positioning for the male connector 290, preventing displacement or tilting of multiple pairs of male connectors 290 during insertion and removal. This ensures precise alignment of the male connector 290 and the female connector 330 when the plug and socket are connected, reducing connection resistance and improving insertion and removal feel and connection reliability. At the same time, by setting an independent sleeve, interference between adjacent male connectors 290 can be avoided.

[0086] For example, the sleeve is made of insulating material, which can achieve physical separation and insulation between adjacent male connectors 290, avoid creepage and arcing between adjacent male connectors 290 in high-voltage scenarios; at the same time, it reduces electromagnetic interference between male connectors 290, especially suitable for scenarios where signal and power wires are bundled together, ensuring the stability of signal transmission.

[0087] In one embodiment, one sub-cable 501 of the connecting cable 500 is a grounding wire 501b, and the end of the male connector 290 to which the grounding wire 501b is connected protrudes from the sleeve; the ends of the male connectors 290 to which the other sub-cables 501 are connected are recessed into the sleeve.

[0088] Specifically, the differentiated structure of the male connector 290 corresponding to the grounding wire 501b, which is "protruding," and the other male connectors 290, which are "recessed," can build a physical anti-misinsertion mechanism: if an attempt is made to connect in reverse or with incorrect polarity, the protruding and concave structures will interfere with each other and cannot be inserted or removed. This prevents short circuits and burnouts of equipment caused by reverse polarity, or electric shock and arcing accidents in high-voltage scenarios, especially suitable for high-voltage wiring scenarios with three phases and grounding.

[0089] Furthermore, the protruding grounding wire 501b male connector 290 will contact the socket-side female connector 330 before the other live male connectors 290, achieving "grounding circuit first"; during insertion and removal, the grounding wire 501b male connector 290 will be the last to disengage, ensuring "grounding circuit last to disconnect". Therefore, during live insertion or connection processes, a safety grounding barrier can be established in advance to prevent the equipment casing from becoming live, electromagnetic interference from exceeding standards, or electric arc damage to connectors during insertion and removal, thus avoiding safety accidents.

[0090] Furthermore, the ends of the other live male connectors 290 are recessed inside the sleeve, and the live parts are deeply wrapped by the sleeve, which can reduce the possibility of accidental contact by personnel; while the grounding wire 501b male connector 290 protrudes, because it is the grounding electrode (potential close to the earth), even if it is accidentally touched, it will not cause electric shock.

[0091] In summary, the connector plug 200 provided in this disclosure, through the structure of the protruding male connector 290 of the grounding wire 501b combined with the recessed structure of the other male connectors 290, achieves physical prevention of mis-interlocking and priority grounding conduction, thus eliminating the risk of reverse polarity connection and electric shock. Simultaneously, the independent insulating sleeve encasing the live male connector 290 reduces the risk of accidental contact, avoids creepage and arcing, and is suitable for the safety requirements of high-voltage scenarios.

[0092] The shielding structure, consisting of a full-circumferential fixed shielding mesh 600, reinforced contact with bosses, and a fully enclosed shielding cavity 250, combined with the closed gap of the bend in the back cover 260 and 261, reduces electromagnetic leakage, blocks internal signal radiation, and isolates external noise intrusion, ensuring signal transmission quality.

[0093] By combining the U-shaped copper busbar 281 with the metal tube 282 at the end of the sub-cable 501, the contact area can be effectively increased, the contact resistance reduced, the current carrying capacity and current conduction uniformity improved, and the risk of local overheating and discharge avoided. At the same time, the spaced layout of the flat sub-cables 501 reduces interference and core wear, making it suitable for high-voltage and high-current transmission.

[0094] Furthermore, based on the metal shielded connector 100 and connector plug 200 mentioned in the above embodiments, this disclosure also provides a connector socket 300 that can be mated with the connector plug 200 mentioned in the above embodiments.

[0095] Please see Figures 9 to 12 The connector socket 300 provided in this disclosure includes a socket housing 350, a female connector 330, a resilient shielding assembly, and a high-voltage interlocking safety mechanism 110. The socket housing 350 is integrally formed by insert injection molding of a socket metal outer shell 310 and an insulator 320. The socket metal outer shell 310 is located around the insulator 320, and the insulator 320 isolates the female connector 330 from the external socket metal outer shell 310. The integral isolation between the insulator 320 and the socket metal outer shell 310 physically insulates the female connector 330 from the external metal outer shell, preventing conductive contact between the live parts of the female connector 330 and the outer shell, reducing the risk of leakage, and improving electrical safety.

[0096] The female connector 330 is mounted on the insulator 320, which provides precise positioning and stable support to prevent the female connector 330 from shifting or tilting, thus ensuring the stability of the connection with the male connector 290.

[0097] Furthermore, the elastic shielding assembly includes a U-shaped metal spring 340 fixed in an elongated groove 311 at the top and bottom of the socket metal housing 310, and the central arched portion of the U-shaped metal spring 340 protrudes from the housing surface to form an elastic electrical contact with the mating plug metal housing 210 and the device mounting panel 400 to construct a shielding circuit.

[0098] Understandably, when the connector socket 300 is mounted on the equipment mounting panel 400 and the connector plug 200 is connected to the connector socket 300, the U-shaped metal spring 340 can connect with the plug metal shell 210 of the connector plug 200 and also connect with the equipment mounting panel 400, thereby achieving flexible electrical contact and constructing a complete shielded circuit.

[0099] The U-shaped metal spring 340 is fixed to the elongated groove 311 with an interference fit. The central arched part protrudes from the surface of the outer shell. During docking / installation, it achieves a tight fit through elastic compression, which can compensate for machining tolerances and vibration displacement, ensuring contact reliability. Even under high-frequency vibration conditions, it can still maintain stable shielding performance.

[0100] Furthermore, the high-voltage interlock safety mechanism 110 includes a trigger unit 111 disposed at the bottom of the metal housing 310 of the socket, and the trigger unit 111 corresponds to a micro switch 111a connected in series with two normally open contacts.

[0101] Specifically, a high-voltage interlocking structure employs two normally open contacts connected in series with microswitches 111a. The two microswitches 111a are symmetrically arranged on both sides of the socket's metal housing 310. The interlocking circuit is only activated when both are triggered (the plug is fully locked), avoiding the risk of false high-voltage conduction due to the failure of a single microswitch 111a and improving safety redundancy. Simultaneously, the high-voltage interlocking is linked to the locking action of the connector plug 200, allowing the high-voltage circuit to conduct only after the connector plug 200 is fully engaged and locked, thus preventing electric shock and arcing accidents when the plug is not locked.

[0102] In one embodiment, the female connector 330 is axially fixed inside the insulator 320 by a C-shaped retaining ring 360, and a mutually cooperating anti-rotation structure 370 is provided between the outer peripheral surface of the female connector 330 and the inner wall of the mounting hole of the insulator 320.

[0103] For example, the C-shaped retaining ring 360 can achieve a tight fit with the slot of the female connector 330 through its own elastic deformation, providing uniform and durable clamping force. This effectively limits the axial displacement of the female connector 330, preventing axial movement or detachment of the female connector 330 caused by insertion / removal impacts or equipment vibrations. It also ensures stable contact depth with the male connector 290, avoiding the risks of poor contact, signal interruption, or high-voltage discharge. Furthermore, the C-shaped retaining ring 360 is a ring-shaped thin-plate structure. After assembly, it is embedded between the slot of the female connector 330 and the step of the mounting hole of the insulator 320, without adding extra axial or radial volume to the socket, maintaining a compact socket structure.

[0104] By setting a mutually cooperating anti-rotation structure 370 between the outer peripheral surface of the female connector 330 and the inner wall of the mounting hole of the insulator 320, a rigid circumferential limit can be formed between the female connector 330 and the insulator 320, preventing the female connector 330 from rotating circumferentially during insertion, removal, or vibration. This ensures that the contact end of the female connector 330 is accurately aligned with the male connector 290 of the connector plug 200, avoiding problems such as reduced contact area, increased contact resistance, or socket wear caused by rotation.

[0105] In one embodiment, the anti-rotation structure 370 includes at least one plane 371 disposed on the outer peripheral surface of the female connector 330, and a mating surface 372 disposed on the inner wall of the mounting hole of the insulator 320 and adapted to the plane 371.

[0106] Specifically, the surface-contact rigid limiting mechanism formed by the plane 371 and the mating surface 372, compared to anti-rotation structures 370 such as keyways and protrusions, has a larger contact area and stronger limiting torque. This prevents the female connector 330 from rotating circumferentially during insertion / removal, vibration, and high-voltage, high-current transmission, ensuring precise alignment of the female connector 330's socket with the male connector 290. Therefore, it further avoids increased contact resistance, signal distortion, or socket wear caused by contact misalignment, ensuring long-term stability of electrical conduction.

[0107] In one embodiment, each trigger unit 111 includes a receiving cavity 111c formed at the bottom of the socket metal housing 310, a support shaft 111d passing through the receiving cavity 111c, and a micro switch 111a sleeved on the support shaft 111d. An elastic trigger arm 111b for triggering the micro switch 111a is disposed in the receiving cavity 111c.

[0108] Understandably, the receiving cavity 111c provides a dedicated installation space for the micro switch 111a, enabling the integrated design of the trigger unit 111 and the socket metal housing 310, preventing the micro switch 111a from loosening or shifting due to vibration or insertion / removal impacts. The support shaft 111d traverses the receiving cavity 111c and mounts the micro switch 111a, providing rigid support and limiting the axial and radial displacement of the micro switch 111a. This ensures long-term accurate triggering and prevents false connection / disconnection of the interlocking circuit due to switch displacement. Simultaneously, the receiving cavity 111c isolates the micro switch 111a from collisions and scratches, protecting it and the elastic trigger arm 111b from mechanical damage. It also reduces interference from external impurities on the triggering action under vibration conditions, improving the vibration and impact resistance of the trigger unit 111.

[0109] Furthermore, the elastic trigger arm 111b is built into the receiving cavity 111c, forming a defined trigger stroke. Combined with the downward pressing action of the locking member 112 of the connector plug 200, this ensures that the elastic trigger arm 111b is only pressed into place to activate the interlock circuit when the plug is fully locked, avoiding safety hazards caused by trigger stroke deviation. Simultaneously, the receiving cavity 111c structure of the socket metal housing 310 has excellent electromagnetic shielding, reducing interference from external electromagnetic noise on the microswitch 111a contact signal and preventing false triggering of the interlock circuit, especially suitable for electromagnetic compatibility requirements in high-voltage, high-current scenarios.

[0110] In one embodiment, the two ends of the support shaft 111d are axially limited by snap rings 111e.

[0111] Understandably, the snap ring 111e, with its elastic clamping force, forms a precise limit on both ends of the support shaft 111d, which can effectively limit the axial displacement of the support shaft 111d, ensure that the micro switch 111a sleeved on the support shaft 111d is fixed in position, maintain the accuracy of the trigger point of the elastic trigger arm 111b, and prevent the safety hazard of false connection / false disconnection of the interlock circuit caused by the displacement of the support shaft 111d.

[0112] In one embodiment, a hexagonal nut 114 is press-fitted to each side of the metal housing 310 of the socket. The hexagonal nut 114 corresponds to the position of the elastic trigger arm 111b of the trigger unit 111, so that the locking fastener 223 screwed into the hexagonal nut 114 can press down the trigger portion. It is understood that in this embodiment, the locking fastener 223 may use a screw that is compatible with the hexagonal nut 114.

[0113] Specifically, the hexagonal nut 114 and the elastic trigger arm 111b of the trigger unit 111 are precisely aligned. The screwed-in locking fastener 223, while completing the locking action between the plug and socket, simultaneously presses down on the elastic trigger arm 111b, achieving a linkage control of "tightening to the point of engagement triggering the interlock circuit." This ensures that the high-voltage interlock circuit is only connected when the plug is fully locked, thus eliminating the risk of high-voltage conduction when the plug is not locked. The symmetrical arrangement of the hexagonal nuts 114 and locking fasteners 223 on both sides ensures that the downward triggering force is evenly applied to the elastic trigger arm 111b, avoiding trigger arm misalignment and insufficient trigger stroke caused by unilateral force. This guarantees the consistency and reliability of the interlock triggering action and prevents electric shock and arcing accidents caused by trigger failure.

[0114] In one embodiment, one side of the U-shaped metal spring 340 is an outwardly inclined elastic arm 341, and the other side is fixed with the sidewall of the elongated groove 311 by interference fit, and the U-shaped metal spring 340 is made of beryllium bronze.

[0115] Specifically, the U-shaped metal spring 340, after interference fit with the sidewall of the elongated groove 311, generates a uniform elastic preload, ensuring a tight surface contact between the U-shaped metal spring 340 and the sidewall of the elongated groove 311, thus avoiding contact resistance fluctuations caused by gaps. Simultaneously, when the connector plug 200 is mated or the equipment vibrates, the elastic arm 341 can compensate for assembly tolerances and displacement deviations through its own deformation, ensuring uninterrupted elastic contact between the U-shaped metal spring 340 and the plug metal housing 210 and the equipment mounting panel 400, guaranteeing the continuity of the plug-socket-equipment mounting panel 400 shielding circuit.

[0116] The interference fit of the inclined elastic arm 341 effectively prevents the U-shaped metal spring 340 from loosening, shifting, or even falling off under high-frequency vibration or insertion / removal impact. At the same time, combined with the high elastic modulus of beryllium bronze, the U-shaped metal spring 340 can withstand more than 5,000 insertion / removal cycles or long-term vibration conditions while maintaining stable fixing effect and elastic performance.

[0117] In one embodiment, the metal housing 310 of the socket is provided with a structure for fixing to the device mounting panel 400, wherein the fixing structure 380 is a threaded hole or a resilient snap.

[0118] Understandably, threaded connections offer strong locking force, capable of withstanding high-frequency vibrations and impacts during equipment operation, preventing socket loosening and displacement, and ensuring long-term stability. Furthermore, threaded connections are highly standardized, compatible with universal bolts / screws, and facilitate 400mm mating with mounting panels of various equipment sizes.

[0119] In scenarios requiring quick assembly and disassembly, the flexible clips allow for tool-free installation and removal of sockets, significantly reducing assembly and maintenance time. Furthermore, the clips' elasticity compensates for machining tolerances in the mounting panel, enabling rapid positioning and fastening, thus improving assembly efficiency.

[0120] Of course, this is not the only option; the solution can be flexibly selected based on the installation requirements of the terminal products, thus expanding its applicability.

[0121] In one embodiment, the insulator 320 is provided with a sleeve coaxial with the mounting hole, and the female connector 330 extends into the sleeve, with its end confined within the sleeve.

[0122] Specifically, the coaxial design of the sleeve and mounting hole provides a precise axial positioning reference for the female connector 330. The end of the female connector 330 is confined within the sleeve, which strictly controls its protrusion length and avoids misalignment caused by excessive protrusion or recess of the female connector 330. This ensures consistent contact depth with the male connector 290, improving the smoothness and reliability of insertion and removal.

[0123] Meanwhile, the limiting function of the sleeve can offset the axial impact force during insertion and removal, preventing the female connector 330 from retracting into the mounting hole due to excessive force, maintaining stable contact point position, and avoiding contact resistance fluctuations or signal transmission interruptions. In summary, this connector socket 300 achieves precise compatibility with the aforementioned connector plug 200 through the synergistic optimization of its integrated housing design, elastic shielding components, redundant high-voltage interlocking mechanism, and multi-dimensional fixed limiting structure. Simultaneously, the high-voltage interlocking design employing dual trigger units 111 and a series micro switch 111a ensures that the high-voltage circuit is only activated when the plug is fully locked and both trigger units 111 are pressed, eliminating the risk of false activation due to the failure of a single trigger unit 111. Furthermore, the precise linkage between the locking fastener 223 and the trigger arm achieves "locking triggers," fundamentally preventing electric shock and arcing accidents when the plug is not locked, thus complying with high-voltage connection safety regulations.

[0124] The female connector 330 is double-fixed by a C-shaped retaining ring 360 for axial limiting and a plane 371-mating surface 372 for circumferential anti-rotation, which prevents axial movement and circumferential rotation, ensuring precise alignment with the male connector 290 and avoiding poor contact; the coaxial limiting of the sleeve further controls the extension length of the female connector 330, offsets the insertion and extraction impact force, and maintains a stable contact depth.

[0125] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0126] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0127] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0128] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A metal shielded connector (100) characterized by, The connector plug (200), the connector socket (300) and the high-voltage interlock safety mechanism (110) are provided. The connector plug (200) comprises a plug metal shell (210). The connector socket (300) comprises a socket metal shell (310), and a U-shaped metal spring (340) is connected to the outer surface of the socket metal shell (310). When the connector plug (200) and the connector socket (300) are locked, the plug metal shell (210) and the U-shaped metal spring (340) form a first elastic electrical contact, and the connector socket (300) and the equipment mounting panel (400) form a second elastic electrical contact through the U-shaped metal spring (340). The high-voltage interlock safety mechanism (110) comprises a trigger unit (111) provided on the connector socket (300) and triggered by an external locking member (112), and the contact state of the trigger unit (111) is used to control the on-off of a high-voltage interlock signal loop. The locking member (112) is located on the connector plug (200), and the connector socket (300) is provided with a locking matching part (113) matched with the locking member (112). When the locking member (112) is operated to a fully locked state, the trigger unit (111) can be triggered and the high-voltage interlock signal loop is turned on.

2. The metal shielded connector (100) of claim 1, characterized in that, A shielding connection structure (220) for fixing a shielding net (600) is arranged at the tail end of the plug metal shell (210), and the shielding connection structure (220) comprises: a U-shaped shielding mounting table (221) located at the tail end of the plug metal shell (210), a shielding net (600) covering the U-shaped shielding mounting table (221), and a pressing plate (222) and a locking fastener (223) for pressing the shielding net (600) on the U-shaped shielding mounting table (221).

3. The metal shielded connector (100) of claim 1, wherein, The U-shaped metal spring (340) is interference-fitted in the long slot (311) of the top wall and the bottom wall of the socket metal shell (310), and the middle arch part of the U-shaped metal spring (340) protrudes from the surface of the socket metal shell (310).

4. The metal shielded connector (100) of claim 1, wherein, The trigger unit (111) comprises at least two micro switches (111a) arranged on the connector socket (300), and the normally open contacts of all the micro switches (111a) are connected in series.

5. The metal shielded connector (100) of claim 4, characterized in that, The high-voltage interlock signal loop is allowed to be turned on only when all the micro switches (111a) are triggered.

6. The metal shielded connector (100) of claim 4, characterized in that, The locking member (112) is a screw screwed into the locking matching part (113), and the end of the screw is used to press the elastic trigger arm (111b) of the micro switch (111a) during the screwing process.

7. The metal shielded connector (100) of claim 1, wherein, The U-shaped shielding mounting table (221) is connected with a blocking plate (252), and the blocking plate (252) is used to isolate different polarity sub-cables (501) on the connecting cable (500).

8. The metal shielded connector (100) of claim 1, wherein, In the connected state, the shielding net (600) forms a continuous shielding grounding path through the plug metal shell (210), the U-shaped metal spring (340) and the equipment mounting panel (400).

9. The metal shielded connector (100) of claim 1, wherein, A sleeve is arranged on the insulator of the connector socket (300), and a female connector (330) is arranged on the connector socket (300), and the end of the female connector (330) is recessed in the sleeve.

10. The metal shielded connector (100) of claim 2, wherein, The pressing plate (222) is arranged along the periphery of the U-shaped shielding mounting table (221), and is used for uniformly pressing the shielding net (600) on the U-shaped shielding mounting table (221).

Images