connector

Abstract

This utility model discloses a connector. The connector includes a socket and a plug. The socket includes a socket housing and socket terminals. A socket core is provided between the socket housing and the socket terminals. The socket core has a through hole for the socket terminals to pass through. The inner wall of the socket core and the outer wall of the socket terminals enclose an inner insertion cavity, and the outer wall of the socket core and the inner wall of the socket housing enclose an outer insertion cavity. The plug includes a plug housing and plug terminals. A plug insulating sleeve is provided between the plug housing and the plug terminals. The outer wall of one end of the plug insulating sleeve abuts against a plug core coaxially disposed with the plug insulating sleeve. The plug insulating sleeve has a first through groove, and the plug core has a second through groove. When the plug and socket are engaged, at least a portion of the plug housing is inserted into the outer insertion cavity, and at least a portion of the plug insulating sleeve is inserted into the inner insertion cavity. The through hole, the first through groove, and the second through groove are interconnected. This utility model connector has a high voltage withstand rating and can withstand 1000V DC voltage.

Description

Technical Field

[0001] This utility model relates to the field of connectors, and in particular to a high-voltage, high-current connector. Background Technology

[0002] With the development of the automotive industry, the application of high-voltage and high-current connectors in the new energy industry is becoming more and more widespread. In particular, the electrification trend in the shipbuilding industry is becoming more and more obvious, and the demand for high voltage and high current is intensifying. At the same time, higher requirements are being placed on the high voltage resistance level and shielding. Summary of the Invention

[0003] The purpose of this invention is to provide a connector that addresses the problems of low voltage resistance and insufficient creepage distance. Conventional metal connectors exhibit surface discharge at 1000V, while this invention, through its unique insulation structure, can withstand 1000V DC voltage.

[0004] This utility model proposes a connector, comprising:

[0005] A socket includes a socket housing and a socket core at least partially disposed within the socket housing. The socket core has a through hole through which the socket terminal passes. The inner wall of the socket core and the outer wall of the socket terminal enclose each other to form an inner insertion cavity. The outer wall of the socket core and the inner wall of the socket housing enclose each other to form an outer insertion cavity.

[0006] A plug is inserted into the socket. The plug includes a plug housing, a plug insulating sleeve, and a plug core disposed within the plug housing. The plug insulating sleeve is disposed at one end of the plug housing near the socket. The outer wall of the plug insulating sleeve away from the socket abuts against the plug core, which is coaxially disposed with the plug insulating sleeve. The plug insulating sleeve has a first through groove, and the plug core has a second through groove communicating with the first through groove.

[0007] When the plug is inserted into the socket, at least a portion of the plug housing is inserted into the outer socket cavity, and at least a portion of the plug insulating sleeve is inserted into the inner socket cavity. The through hole of the rubber core, the first through groove, and the second through groove are connected.

[0008] In one embodiment, the socket core has a first plug portion, a connecting portion, and a second plug portion protruding from the socket housing, the connecting portion abutting against the inner end face of the socket housing at the end away from the plug.

[0009] In one embodiment, the first plug portion is connected to a socket insulating sleeve, and the socket insulating sleeve has an insulating through hole for the socket terminal to pass through and a socket insulating cavity that matches the first plug portion.

[0010] In one embodiment, a first annular gap is formed between the first end of the plug terminal and the plug core, and a second annular gap is formed between the plug terminal and the plug housing, communicating with the first annular gap. The end of the plug insulating sleeve away from the socket abuts against the plug core within the first annular gap, and the end closer to the socket abuts against the plug housing within the second annular gap, and covers the first end of the plug terminal.

[0011] Alternatively, the socket core may be provided with a high-voltage interlocking socket, and the plug insulating sleeve may be provided with a high-voltage interlocking pin that is inserted into the high-voltage interlocking socket.

[0012] In one embodiment, a shielding sleeve is provided at the end of the plug core away from the socket. The shielding sleeve includes an inner shielding sleeve and an outer shielding sleeve arranged coaxially. The outer shielding sleeve includes a first shielding part that is sleeved on the outer wall of the plug core and elastically abuts against the plug housing, and a second shielding part that is connected to the first shielding part. The inner shielding sleeve is disposed inside the second shielding part.

[0013] In one embodiment, the tail of the plug housing is provided with a tail clamp for gripping the cable. The tail clamp has a claw portion and a mounting portion. The claw portion is arranged circumferentially around the mounting portion and has a gripping groove.

[0014] Alternatively, the outer wall of the first shielding part is provided with multiple mounting holes, and at least part of the mounting holes are provided with protrusions protruding from the mounting holes, and the multiple protrusions elastically abut against the inner wall of the plug housing.

[0015] In one embodiment, the plug housing has a first anti-mistake part on the outer wall near the socket; the socket housing has a second anti-mistake part that matches the first anti-mistake part on the inner wall near the plug; the first anti-mistake part and the second anti-mistake part are connected to prevent the plug housing from rotating relative to the socket housing within the external insertion cavity.

[0016] In one embodiment, the end of the plug housing away from the socket is provided with a tail sleeve that engages with the plug housing, the tail sleeve is provided with a locking hole, and the plug housing is provided with a corresponding locking block.

[0017] In one embodiment, the connector further has a locking element capable of axially locking the plug and the socket. The locking element includes a fixing portion fixedly mounted on the upper part of the plug housing and a latch. The fixing portion has a receiving groove, and the latch is at least partially disposed in the receiving groove and slidably connected to the plug housing.

[0018] In one embodiment, the locking member further includes a safety part disposed in the receiving groove, the safety part including a locking block, the locking block having a insertion cavity, one end of the locking member having an insertion part, the locking block being inserted into the insertion cavity and the insertion part; a spring is disposed in the insertion cavity, one end of the spring abutting against the locking member and the other end abutting against the locking block.

[0019] This utility model connector includes a socket and a plug. The socket includes a socket housing and a socket terminal disposed within the socket housing. A socket core is provided between the socket housing and the socket terminal, with at least a portion of the socket core disposed within the socket housing. The socket core has a through hole for the socket terminal to pass through. The inner wall of the socket core and the outer wall of the socket terminal enclose each other to form an inner insertion cavity, and the outer wall of the socket core and the inner wall of the socket housing enclose each other to form an outer insertion cavity. The plug includes a plug housing and a plug terminal disposed within the plug housing to engage with the socket terminal. A plug insulating sleeve is provided between the end of the plug housing near the socket and the plug terminal. The outer wall of the plug insulating sleeve away from the socket abuts against a plug core coaxially disposed with the plug insulating sleeve. The plug insulating sleeve has a first through groove, and the plug core has a second through groove communicating with the first through groove. When the plug and socket are engaged, at least a portion of the plug housing is inserted into the outer insertion cavity, and at least a portion of the plug insulating sleeve is inserted into the inner insertion cavity. The through hole, the first through groove, and the second through groove are interconnected. By setting a plug insulating sleeve between the plug housing and the plug terminal, and coaxially sleeved on the outside of the plug insulating sleeve, the separate design of the plug insulating sleeve and the plug core avoids single-point failure. The plug insulating sleeve is deeply inserted into the inner cavity of the socket to ensure electrical isolation. Furthermore, combined with the nested structure of the outer cavity, the socket core, the plug insulating sleeve, and the plug core form a series insulation barrier, which significantly improves the creepage distance and electrical clearance, and has a high withstand voltage rating. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 This is an exploded perspective view of a connector according to an embodiment of this utility model;

[0022] Figure 2 This is a three-dimensional structural diagram of a connector according to an embodiment of the present invention;

[0023] Figure 3 This is a cross-sectional view of a connector according to an embodiment of the present invention;

[0024] Figure 4 This is an exploded three-dimensional view of a socket according to an embodiment of this utility model;

[0025] Figure 5 This is a three-dimensional structural diagram of a socket according to an embodiment of the present invention;

[0026] Figure 6 This is an exploded three-dimensional view of a plug according to an embodiment of this utility model;

[0027] Figure 7 This is a schematic diagram of the three-dimensional structure of a plug according to an embodiment of the present invention;

[0028] Figure 8 This is an exploded three-dimensional view of the latch of an embodiment of this utility model.

[0029] Explanation of icon numbers:

[0030] label name label name label name 10 socket 23 plug insulation sleeve 31 Fixing part 11 socket housing 23A First through slot 31A Container 11A External insertion cavity 231 High voltage interlock pin 31B Export Hole 111 Second error prevention department 24 plug core 311 Fixed base 112 Annular boss 112 24A Second through slot 3111 First limiting pressure block 12 Socket terminals 24B First annular gap 3112 Second limiting pressure block 13 socket core 25 Shielding sleeve 32 Lock 13A Through hole of rubber core 251 Inner shielding sleeve 32A Internal pin hole 13B High-voltage interlock socket 252 outer shielding sleeve 321 Connector 13C Internal insertion cavity 2521 First shielding section 321A abutment groove 131 First connector 2521A Mounting holes 3211 plug block 132 Connection part 25211 Lugs 322 pin 133 Second connector 2522 Second shielding section 323 Torsion spring 14 socket insulation sleeve 26 sealing ring 324 Hook 14A Insulating through hole 261 Sealing protrusion 33 Ministry of Security 14B socket insulation cavity 261A Sealing groove 331 Locked block 20 plug 27 Tail clip 331A Plug cavity 21 Plug housing 271 Claw section 3311 stop 21A Sealing groove 271A Grip groove 3312 Anti-pressing part 21B Second annular gap 2711 Claw 332 spring 211 First Error Prevention Department 272 Installation Department 40 Cable 212 Card Block 28 Tail sleeve 100 connector 213 sealing ring 28A Snap 22 Plug terminals 30 Locking fasteners

[0031] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; taking "A and / or B" as an example, it includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0036] With the development of the automotive industry, the application of high-voltage and high-current connectors in the new energy industry is becoming more and more widespread. In particular, the electrification trend in the shipbuilding industry is becoming more and more obvious, and the demand for high voltage and high current is intensifying. At the same time, higher requirements are being placed on the high voltage resistance level and shielding.

[0037] To address the issue of lower high-voltage withstand ratings, please refer to... Figures 1 to 8 This utility model provides a connector 100, including a socket 10 and a plug 20 that engages with the socket 10. The socket 10 includes a socket housing 11 and a socket core 13 at least partially disposed within the socket housing 11. The socket core 13 has a through hole 13A for a socket terminal 12. The inner wall of the socket core 13 and the outer wall of the socket terminal 12 form an inner insertion cavity 13C, and the outer wall of the socket core 13 and the inner wall of the socket housing 11 form an outer insertion cavity 11A. The plug 20 includes a plug housing 21 and a plug insulating sleeve 23 and a plug core 24 disposed within the plug housing 21. The plug insulating sleeve 23 is disposed at the end of the plug housing 21 near the socket 10. The outer wall of the end of the plug insulating sleeve 23 away from the socket 10 abuts against the plug core 24, which is coaxially disposed with the plug insulating sleeve 23. The plug insulating sleeve 23 has a first through groove 23A, and the plug core 24 has a second through groove 24A communicating with the first through groove 23A. When the plug 20 is plugged into the socket 10, at least part of the plug housing 21 is inserted into the outer socket cavity 11A, and at least part of the plug insulating sleeve 23 is inserted into the inner socket cavity 13C. The core through hole 13A, the first through groove 23A and the second through groove 24A are connected.

[0038] Understandably, the socket housing 11 is a hollow structure with openings at both ends. The socket housing 11 houses the socket core 13. The socket housing 11 is made of metal, such as zinc alloy, to provide electromagnetic shielding and mechanical support. The socket core 13 has a through-hole 13A for the socket terminal 12 to pass through. The through-hole 13A must be interference-fitted with the socket terminal 12 to prevent loosening. The socket terminal 12 is a conductive component, such as a copper terminal. One end of the socket terminal 12 connects to an external conductor, and the other end engages with the plug terminal 22 to transmit current or signals. A protective screw is provided at the end of the socket terminal 12 where it engages with the plug terminal 22, effectively preventing injury from accidental finger insertion, ensuring high safety. The socket core 13 is made of insulating material, such as nylon or other insulating plastic. The inner wall of the socket core 13 and the outer wall of the socket terminal 12 form an inner insertion cavity 13C. The outer wall of the socket core 13 and the inner wall of the socket housing 11 form an outer insertion cavity 11A, so as to isolate the socket terminal 12 from the socket housing 11 and provide an external insulating barrier for the socket terminal 12.

[0039] Understandably, the plug housing 21 is a hollow structure with openings at both ends. The plug housing 21 houses the plug insulating sleeve 23 and the plug core 24. The plug housing 21 is made of metal, such as zinc alloy, to provide electromagnetic shielding and mechanical support. The plug terminal 22 is a conductive component with a first end and a second end. The first end of the plug terminal 22 is inserted into the socket terminal 12, and the second end is crimped or ultrasonically welded to the cable 40 to achieve current or signal transmission. The plug insulating sleeve 23 is located at the end of the plug housing 21 near the socket 11, between the plug housing 21 and the plug terminal 22. The outer wall of the end of the plug insulating sleeve 23 away from the socket 10 abuts against the plug core 24, which is coaxially arranged with the plug insulating sleeve 23. Both the plug insulating sleeve 23 and the plug core 24 are made of insulating materials, such as nylon or other insulating plastics. The plug insulating sleeve 23 has a first through groove 23A, and the plug core 24 has a second through groove 24A communicating with the first through groove 23A. The plug insulating sleeve 23 and the plug core 24 form a series insulating layer, which improves the electrical isolation redundancy.

[0040] Understandably, when the plug 20 is inserted into the socket 10, part of the plug housing 21 is inserted into the outer socket cavity 11A, and part of the plug insulating sleeve 23 is inserted into the inner socket cavity 13C. The through hole 13A, the first through groove 23A, and the second through groove 24A are connected. The insertion of the plug housing 21 into the outer socket cavity 11A of the socket 10 achieves axial limiting, while the insertion of the plug insulating sleeve 23 into the inner socket cavity 13C prevents the plug terminal 22 from contacting the plug housing 21. The connection of the through hole 13A, the first through groove 23A, and the second through groove 24A ensures stable current transmission. By setting a plug insulating sleeve 23 between the plug housing 21 and the plug terminal 22, and coaxially sleeved on the outside of the plug insulating sleeve 23, the separate design of the plug insulating sleeve 23 and the plug core 24 avoids single-point failure. The plug insulating sleeve 23 penetrates into the inner insertion cavity 13C of the socket 10 to ensure electrical isolation. In combination with the nested structure of the outer insertion cavity 11A, the socket core 13 and the plug insulating sleeve 23 and the plug core 24 form a series insulation barrier, which significantly improves the creepage distance and electrical clearance and has a high withstand voltage rating.

[0041] This utility model provides an embodiment, please refer to it. Figure 1-5 The socket core 13 has a first plug portion 131, a connecting portion 132, and a second plug portion 133 protruding from the socket housing 11. The connecting portion 132 abuts against the inner end face of the socket housing 11 away from the plug 20.

[0042] Specifically, the socket core 13 is a hollow structure with openings at both ends. The first plug-in portion 131 and the second plug-in portion 133 are hollow cylinders arranged around the two opposite surfaces of the connecting portion 132. The connecting portion 132 is an annular limiting boss. The part of the annular limiting boss protruding from the first plug-in portion 131 and the second plug-in portion 133 abuts against the inner end face of the socket housing 11 away from the plug 20 to limit the socket core 13.

[0043] This utility model provides an embodiment, please refer to it. Figure 1-5 The first plug-in part 131 is connected to a socket insulating sleeve 14. The socket insulating sleeve 14 has an insulating through hole 14A for the socket terminal 12 to pass through and a socket insulating cavity 14B that matches the first plug-in part 131.

[0044] Understandably, to further improve the high-voltage withstand performance of the connector 100, the first insertion part 131 is connected to a socket insulating sleeve 14. The socket insulating sleeve 14 has an insulating through-hole 14A for the socket terminal 12 to pass through and a socket insulating cavity 14B that matches the first insertion part 131. The socket insulating sleeve 14 is a second insulating barrier for the socket terminal, preventing direct contact between the socket terminal 12 and the socket core 13, thus avoiding partial discharge or short circuits. The cavity design of the insulating cavity 14B and the insulating through-hole 14A further extends the creepage distance, improving insulation performance and withstand voltage rating.

[0045] This utility model provides an embodiment, please refer to it. Figure 1 , Figure 3 A first annular gap 24B is formed between the first end of the plug terminal 22 and the plug core 24, and a second annular gap 21B is formed between the plug terminal 22 and the plug housing 21, which communicates with the first annular gap 24B. The end of the plug insulating sleeve 23 away from the socket 10 abuts against the plug core 24 in the first annular gap 24B, and the end closer to the socket 10 abuts against the plug housing 21 in the second annular gap 21B, and covers the first end of the plug terminal 22.

[0046] Understandably, a first annular gap 24B is formed between the first end of the plug terminal 22 and the plug core 24, and a second annular gap 21B is formed between the plug terminal 22 and the plug housing 21, which communicates with the first annular gap 24B. The end of the plug insulating sleeve 23 away from the socket 10 abuts against the plug core 24 in the first annular gap 24B, and the end closer to the socket 10 abuts against the plug housing 21 in the second annular gap 21B, and covers the first end of the plug terminal 22. During installation, the plug core 24 is inserted from the tail end of the plug housing 21 and abuts against the inner wall of the plug housing 21. The second end of the plug terminal 22 passes through the second through groove 24A of the plug core 24 from the front end of the plug housing 21 and abuts against the groove wall. A portion of the first end of the plug terminal 22 protrudes from the plug core 24. A first annular gap 24B is formed between the first end of the plug terminal 22 and the plug core 24, and a second annular gap 21B, communicating with the first annular gap 24B, is formed between the first end of the plug terminal 22 and the plug housing 21. The plug insulating sleeve 23 enters from the front end of the plug housing 21 and is sequentially inserted into the second annular gap 21B and the first annular gap 24B, covering the first end of the plug terminal 12 and abutting against the plug core 24 and the plug housing 21. The plug insulating sleeve 23 and the plug core 24 form a series insulation layer, improving electrical isolation redundancy.

[0047] This utility model provides an embodiment, please refer to it. Figure 1 , Figure 4 The socket core 13 is provided with a high-voltage interlocking socket 13B, and the plug insulating sleeve 23 is provided with a high-voltage interlocking pin 231 that is inserted into the high-voltage interlocking socket 13B.

[0048] Understandably, the end of the socket core 13 facing the plug 20 has a high-voltage interlocking socket 13B. The high-voltage interlocking socket 13B can be integrally formed with the socket core 13 or a separate design; this is not limited here. The high-voltage interlocking pin 231 is located at the end of the plug insulating sleeve 23 near the socket 10. The plug insulating sleeve 23 provides a fixed base for the high-voltage interlocking pin 231, facilitating its insertion into the high-voltage interlocking socket 13B. In use, the portion of the high-voltage interlocking pin 231 extending out of the plug insulating sleeve 23 is inserted into the high-voltage interlocking socket 13B. The high-voltage interlocking pin 231 achieves voltage detection and early warning functions through wires or internal circuit control devices. When a high-voltage circuit connection is lost, it can monitor the integrity of the high-voltage circuit using a low-voltage signal circuit, providing early warning information before the high-voltage circuit within the connector 100 is disconnected, thus improving the safety of using the high-voltage, high-current connector.

[0049] This utility model provides an embodiment, please refer to it. Figure 1 , Figure 3 , Figure 6 A shielding sleeve 25 is fitted on the end of the plug core 24 away from the socket 10. The shielding sleeve 25 includes an inner shielding sleeve 251 and an outer shielding sleeve 252 arranged coaxially. The outer shielding sleeve 252 includes a first shielding part 2521 fitted on the outer wall of the plug core 24 and elastically abutting against the plug housing 21, and a second shielding part 2522 connected to the first shielding part 2521. The inner shielding sleeve 251 is disposed inside the second shielding part 2522.

[0050] Understandably, in order to further increase the shielding performance of the plug 20, a shielding sleeve 25 is provided on the end of the plug core 24 away from the socket 10. The shielding sleeve 25 includes an inner shielding sleeve 251 and an outer shielding sleeve 252 arranged coaxially. The outer shielding sleeve 252 includes a first shielding part 2521 and a second shielding part 2522 connected to the first shielding part 2521. Specifically, the first shielding part 2521 can be square or circular. It is fitted onto the tail of the plug core 24, and its outer surface elastically abuts against the plug housing 21. This elastic abutment allows for elastic deformation under vibration or impact, providing cushioning and shock absorption. Simultaneously, it ensures good contact and maintains a stable shielding effect under normal conditions. Correspondingly, the shape of the abutment point between the plug housing 21 and the first shielding part 2521 matches the shape of the first shielding part 2521, meaning it can be either square or circular. The inner shielding sleeve 251 is located inside the second shielding part 2522. The cable 40, crimped to the second end of the plug terminal 22, passes through the first shielding part 2521 and is then riveted to the inner shielding sleeve 251 and the second shielding part 2522 before exiting the plug housing 21. The coaxially arranged inner shielding sleeve 251 and outer shielding sleeve 252 enhance the overall shielding effect of the plug 20, enabling it to better cope with complex electromagnetic environments.

[0051] Furthermore, the outer wall of the first shielding part 2521 is provided with a plurality of mounting holes 2521A, and the plurality of mounting holes 2521A are provided with at least a portion of the protrusions 25211 protruding from the mounting holes 2521A, and the plurality of protrusions 25211 elastically abut against the inner wall of the plug housing 21.

[0052] This utility model provides an embodiment, please refer to it. Figure 1 , Figure 3 , Figure 6 The plug housing 21 has a tail clamp 27 for gripping the cable 40 at its tail end. The tail clamp 27 has a claw portion 271 and a mounting portion 272. The claw portion 271 is arranged circumferentially around the mounting portion 272, and the claw portion 271 has a gripping groove 271A.

[0053] Understandably, the tail clip 27 is installed at the tail of the plug housing 21, mainly for securing the cable 40 and preventing it from falling off due to vibration, pulling, or other reasons. The tail clip 27 has a claw portion 271 and a mounting portion 272. The mounting portion 272 is used to fix the tail clip 27 to the tail of the plug housing 21, and the mounting portion 272 can be fixed to the tail of the plug housing 21 by means of snap-fit ​​connection or other methods; the claw portion 271 consists of multiple claws 2711 arranged around the mounting portion 272 to form a multi-point clamping structure, and each claw 2711 has a gripping groove 2711A on its gripping surface to further enhance the binding force on the cable 40.

[0054] This utility model provides an embodiment, please refer to it. Figure 1 , Figure 3 , Figure 6 A sealing ring 26 is provided between the shielding sleeve 25 and the tail clamp 27. The outer wall of the sealing ring 26 is provided with multiple sealing protrusions 261. The multiple sealing protrusions 261 extend along the circumferential direction of the sealing ring 26 and are spaced apart along the axial direction of the sealing ring 26. A sealing groove 261A is formed between two adjacent sealing protrusions 261.

[0055] Understandably, the sealing ring 26 is located between the shielding sleeve 25 and the tail clamp 27, primarily to prevent external liquids, dust, or contaminants from entering the connector 10 through the tail of the plug housing 21, while also assisting in buffering vibration transmission. The sealing protrusion 261 contacts the hard surface of adjacent components, such as the tail clamp 27 or the plug housing 21, forming an initial sealing barrier through elastic compression. The sealing groove 261A allows the sealing ring 26 to adapt to minor displacements at the tail of the plug 20, maintaining a continuous sealing effect.

[0056] This utility model provides an embodiment, please refer to it. Figures 1-3 , Figure 6A sealing groove 21A is provided on the outer wall surface of the plug housing 21 near the socket 10. A sealing ring 213 is provided in the sealing groove 21A. The socket housing 11 and the plug housing 21 are sealed together by the sealing ring 213.

[0057] Understandably, the sealing ring 213 and sealing ring 26 enable the connector 100 to achieve an all-around sealed connection, thereby improving the safety and stability of the connector 100 structure.

[0058] This utility model provides an embodiment, please refer to it. Figure 4 , Figure 6 The plug housing 21 is provided with a first anti-mistake part 211 on the outer wall near the socket 10; the socket housing 11 is provided with a second anti-mistake part 111 that matches the first anti-mistake part 211 on the inner wall near the plug 20; the first anti-mistake part 211 and the second anti-mistake part 111 are connected to prevent the plug housing 21 from rotating relative to the socket housing 11 in the external insertion cavity 11A.

[0059] Understandably, the first anti-mistake part 211 can be set as a limiting block or multiple limiting blocks spaced apart on the outer wall of the plug housing 21, or it can be set as a limiting structure composed of multiple protrusions distributed axially along the outer wall of the plug housing 21. The second anti-mistake part 111 is provided on the inner wall of the socket housing 11. The structure of the second anti-mistake part 111 can be set as a limiting groove that matches the structure of the first anti-mistake part 211.

[0060] Understandably, the second anti-misplacement part 111 can also be configured as one or more limiting blocks on the inner wall of the socket housing 11, or as a limiting structure composed of multiple protrusions distributed circumferentially along the inner wall of the socket housing 11. The structure of the first anti-misplacement part 211 can be configured as a limiting groove that matches the structure of the second anti-misplacement part 111. When the connector 100 is in use, the plug housing 21 is inserted into the socket housing 11. Because the first anti-misplacement part 211 and the second anti-misplacement part 111 are engaged, relative rotation cannot occur, thereby realizing the anti-misinsertion function between the plug 20 and the socket 10.

[0061] This utility model provides an embodiment, please refer to it. Figure 1 , Figure 2 , Figure 3 , Figure 6 The end of the plug housing 21 away from the socket 10 is provided with a tail sleeve 28 that engages with the plug housing 21. The tail sleeve 28 is provided with a locking hole 28A, and the plug housing 21 is provided with a corresponding locking block 212.

[0062] Understandably, the tail sleeve 28 is installed at the tail of the plug housing 21 and is fixed to the plug housing 21 by a snap-fit ​​mechanism. Its main purpose is to protect the internal structure of the plug 20 and to facilitate quick assembly and disassembly from the plug housing 21. The locking block 212 includes a connecting surface, a stop surface, and a guide surface that connects to the connecting surface and the stop surface. The connecting surface connects to the tail sleeve 28, the stop surface stops the groove wall of the locking hole 28A, and the guide surface is set at an angle to the connecting surface. The two opposing connecting surfaces of the locking block 212 contact the groove side wall of the locking hole 28A of the tail sleeve 28, transmitting the fixing force; the stop surface is perpendicular to the connecting surface and engages with the bottom wall of the locking hole 28A to prevent the tail sleeve 28 from coming out; the guide surface is set at an angle to the connecting surface. During assembly, the guide surface's inclined design reduces the frictional resistance between the locking block 212 and the inlet of the locking hole 28A, facilitating the quick insertion of the tail sleeve 28 into the tail of the plug housing 21.

[0063] This utility model provides an embodiment, please refer to it. Figure 8 The connector 100 also has a locking member 30 that can axially lock the plug 20 and the socket 10. The locking member 30 includes a fixing part 31 and a latch 32 fixedly mounted on the plug housing 21. The fixing part 31 has a receiving groove 31A, and the latch 32 is at least partially disposed in the receiving groove 31A and slidably connected to the plug housing 21.

[0064] Understandably, the fixing part 31 includes a fixing seat 311 fixed above the plug housing 21. The fixing seat 311 has two opposing plates and a receiving groove 31A formed therewith. The latch 32 is provided on the receiving groove 31A and is rotatably connected to the fixing seat 311. Specifically, the two side plates of the fixing base 311 are provided with opposite outer pin holes 31B, and the two side plates of the latch 32 are provided with opposite inner pin holes 32A. The pin 322 passes through the outer pin hole 31B and the inner pin hole 32A. The pin 322 is fitted with a torsion spring 323, which is located between the latch 32 and the receiving groove 31A. The abutting end of the torsion spring 323 abuts against the inner end face of the latch 32 from the bottom side of the receiving groove 31A. The latch 32 and the fixing base 311 are rotatably connected at the outer pin hole 31B and the inner pin hole 32A. The pin 322 can be replaced by a columnar limiting structure to achieve the rotatable connection between the latch 32 and the fixing base 311. Alternatively, protrusions can be provided on both sides of the latch 32, and grooves can be provided on both side plates of the fixing base 311, so that the grooves and protrusions cooperate to achieve the rotatable connection between the latch 32 and the fixing base 311.

[0065] Furthermore, the outer wall of the socket housing 13 near the plug 20 is provided with an annular protrusion 112, and the latch 32 near the socket 10 is provided with a hook 324, which is engaged with the end face of the annular protrusion 112 away from the plug 20.

[0066] The present invention provides an embodiment, please refer to it. Figure 8The locking fastener 30 also includes a safety part 33, which is disposed on the receiving groove 31A. The safety part 33 includes a locking block 331, which has a insertion cavity 331A. One end of the latch 32 is provided with an insertion part 321. The locking block 331 is inserted into the insertion cavity 331A and the insertion part 321 is inserted into the insertion cavity 331A. A spring 332 is provided in the insertion cavity 331A. One end of the spring 332 abuts against the latch 32 and the other end abuts against the locking block 331.

[0067] In this embodiment, the end of the latch 32 away from the hook 324 is provided with a plug-in portion 321. The plug-in portion 321 includes two plug-in blocks 3211 at the rear end of the latch 32. The shape of the plug-in blocks 3211 matches the shape of the plug-in cavity 331A of the locking block 331. The middle of the two plug-in blocks 3211 has an end face for the spring 332 to abut. This end face is provided with an abutment groove 321A that extends into the latch 32. The end face of the locking block 331 away from the latch 32 is provided with a stop block 3311. One end of the spring 332 abuts in the abutment groove 321A, and the other end abuts on the end face of the stop block 3311 near the spring 332. Applying a force toward the latch 32 to the locking block 331 can compress the spring 332 inward, thereby realizing the relative movement of the locking block 331 relative to the plug-in portion 321. A guide post is provided on the abutment groove 321A or the stop block 3311, and the spring 332 is sleeved on the outside of the guide post to prevent the spring 332 from disengaging during use and to ensure the stability of the locking fastener 30.

[0068] The present invention provides an embodiment, please refer to it. Figure 8 The inner walls of the two sides of the receiving groove 31A are provided with a first limiting block 3111 and a second limiting block 3112 at one end near the safety part 33. The locking block 331 is provided with anti-pressing parts 3312 on both ends of the inner side wall of the receiving groove 31A. When the locking member 30 is in the locked state, the bottom wall of the locking block 331, away from the locking buckle 32, overlaps with the first limiting block 3111, and the anti-pressing part 3312 overlaps with the second limiting block 3112 to prevent the locking block 331 from being pressed down.

[0069] In this embodiment, please refer to Figure 8 When the connector 100 is locked, the first limiting pressure block 3111 is placed below the end of the bottom wall of the locking block 331 away from the latch 32, lifting the rear end of the locking block 331. The second limiting pressure block 3112 is placed below the anti-pressing portions 3312 on both sides of the front end of the locking block 331, lifting the front end of the locking block 331 at the anti-pressing portion 3312. The first limiting pressure block 3111 and the second limiting pressure block 3112 together apply an upward supporting force to the locking block 331, preventing the locking block 331 from falling into the receiving groove 31A due to accidental pressing, which would cause the front end hook 324 to lift up, further enhancing the structural stability of the connector 100.

[0070] The fastening connection steps of the locking fastener 30 are as follows: the front end hook 324 of the locking fastener 32 is fastened to the end face of the annular boss 112 away from the plug 20, and the plug 20 and the socket 10 are fastened together to prevent the plug 20 and the socket 10 from axially separating. Under the action of axial compression force, the spring 332 gives a backward push to the stop block 3311 on the rear side. The first limiting pressure block 3111 on the inner wall of both sides of the receiving groove 31A overlaps with the locking block 331, and the second limiting pressure block 3112 overlaps with the anti-pressing part 3312 at the front end of the locking block 331. The anti-pressing part 3312 is limited between the second limiting pressure block 3112 and the side wall of the receiving groove 31A to prevent the locking block 331 from sinking due to pressing, so that the locking fastener 32 cannot rotate up and down relative to the fixed seat 311, thereby realizing the enhanced locking between the plug 20 and the socket 10 by the locking fastener 30.

[0071] When the locking fastener 30 is released, the locking block 331 is pushed forward, compressing the spring 332, causing the locking block 331 to move forward and be offset from the position of the first limiting pressure block 3111. The anti-pressing part 3312 is offset from the position of the second limiting pressure block 3112. The locking block 331 is displaced relative to the latch 32 and falls into the bottom of the receiving groove 31A. According to the lever principle, the front end hook 324 of the latch 32 will be lifted at this time, thus unlocking the locking fastener 30. The plug 20 is pulled backward, causing the plug 20 to axially disengage from the socket 10. After the plug 20 disengages from the socket 10, the elastic force of the spring 332 and the torsion force of the torsion spring 323 can be used to achieve automatic reset of the locking fastener 30.

[0072] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," 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, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0073] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. A connector, characterized in that, include: A socket includes a socket housing and a socket core at least partially disposed within the socket housing. The socket core has a through hole through which the socket terminal passes. The inner wall of the socket core and the outer wall of the socket terminal enclose each other to form an inner insertion cavity. The outer wall of the socket core and the inner wall of the socket housing enclose each other to form an outer insertion cavity. A plug is inserted into the socket. The plug includes a plug housing, a plug insulating sleeve, and a plug core disposed within the plug housing. The plug insulating sleeve is disposed at one end of the plug housing near the socket. The outer wall of the plug insulating sleeve away from the socket abuts against the plug core, which is coaxially disposed with the plug insulating sleeve. The plug insulating sleeve has a first through groove, and the plug core has a second through groove communicating with the first through groove. When the plug is inserted into the socket, at least a portion of the plug housing is inserted into the outer socket cavity, and at least a portion of the plug insulating sleeve is inserted into the inner socket cavity. The through hole of the rubber core, the first through groove, and the second through groove are connected.

2. The connector as described in claim 1, characterized in that, The socket core has a first plug-in portion, a connecting portion, and a second plug-in portion protruding from the socket housing, and the connecting portion abuts against the inner end face of the socket housing at the end away from the plug.

3. The connector as described in claim 2, characterized in that, The first plug-in portion is connected to a socket insulating sleeve, and the socket insulating sleeve has an insulating through hole for the socket terminal to pass through and a socket insulating cavity that matches the first plug-in portion.

4. The connector as claimed in claim 1, characterized in that, A first annular gap is formed between the first end of the plug terminal and the plug core, and a second annular gap is formed between the plug terminal and the plug housing, which communicates with the first annular gap. The end of the plug insulating sleeve away from the socket abuts against the plug core in the first annular gap, and the end closer to the socket abuts against the plug housing in the second annular gap, and covers the first end of the plug terminal. Alternatively, the socket core may be provided with a high-voltage interlocking socket, and the plug insulating sleeve may be provided with a high-voltage interlocking pin that is inserted into the high-voltage interlocking socket.

5. The connector as claimed in claim 1, characterized in that, A shielding sleeve is fitted at one end of the plug core away from the socket. The shielding sleeve includes an inner shielding sleeve and an outer shielding sleeve arranged coaxially. The outer shielding sleeve includes a first shielding part fitted on the outer wall of the plug core and elastically abutting against the plug housing, and a second shielding part connected to the first shielding part. The inner shielding sleeve is fitted inside the second shielding part.

6. The connector as described in claim 5, characterized in that, The plug housing is provided with a tail clamp for gripping the cable. The tail clamp has a claw part and a mounting part. The claw part is arranged circumferentially around the mounting part and has a gripping groove. Alternatively, the outer wall of the first shielding part is provided with multiple mounting holes, and at least part of the mounting holes are provided with protrusions protruding from the mounting holes, and the multiple protrusions elastically abut against the inner wall of the plug housing.

7. The connector as claimed in claim 1, characterized in that, The plug housing has a first anti-mistake part on the outer wall near the socket; the socket housing has a second anti-mistake part that matches the first anti-mistake part on the inner wall near the plug; the first anti-mistake part and the second anti-mistake part are connected to prevent the plug housing from rotating relative to the socket housing in the external insertion cavity.

8. The connector as claimed in claim 1, characterized in that, The end of the plug housing away from the socket is provided with a tail sleeve that engages with the plug housing. The tail sleeve is provided with a locking hole, and the plug housing is provided with a corresponding locking block.

9. The connector as described in any one of claims 1-8, characterized in that, The connector also has a locking element that can axially lock the plug and the socket. The locking element includes a fixing part and a latch fixedly mounted on the upper part of the plug housing. The fixing part has a receiving groove, and the latch is at least partially disposed in the receiving groove and slidably connected to the plug housing.

10. A connector as described in claim 9, characterized in that, The locking component also includes a safety part, which is disposed in the receiving groove and includes a locking block. The locking block has a insertion cavity, and one end of the lock has an insertion part. The locking block is inserted into the insertion cavity and the insertion part. A spring is disposed in the insertion cavity, with one end of the spring abutting against the lock and the other end abutting against the locking block.

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