Connector plug and connector

Abstract

This utility model discloses a connector plug and a connector. The connector plug includes a plug body and a cable fixing component. The cable fixing component has an outer sleeve, a retaining ring, and an inlet sleeve arranged coaxially. The outer sleeve is connected to the housing. The retaining ring has a limiting part that abuts against the inner wall of the outer sleeve and a through-sleeve part connected to the limiting part. The limiting part has a limiting groove on its end face facing the terminal. The end face of the through-sleeve part away from the terminal abuts against the inner bottom wall of the outer sleeve. One end of the inlet sleeve is located in the limiting groove. This utility model, through the coaxial arrangement of the outer sleeve, retaining ring, and inlet sleeve, makes the entire cable fixing component structure compact, enabling effective cable fixing within a limited space. By setting the retaining ring as both the through-sleeve part and the limiting part, with a limiting groove at one end of the limiting part and one end of the inlet sleeve located in the limiting groove, it ensures that the cable is firmly fixed inside the connector plug, reducing cable movement inside the connector plug and thus reducing the risk of cable insulation layer retraction due to external force.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, specifically to an energy storage connector plug and an energy storage connector. Background Technology

[0002] Energy storage connectors serve as connecting components between electrical devices and energy storage or charging devices, facilitating current transmission between the devices. Common energy storage connectors include connector plugs and connector sockets that connect via mating. The connector plug connects to cables, while the connector socket connects to the electrical device or other equipment. Conductivity is achieved between the connector plug and connector socket through the mating of conductive terminals and pins. For cable connections, terminals are typically provided inside the connector plug to connect the cable to the conductive terminals.

[0003] Silicone rubber cables possess excellent flexibility, enabling flexible cabling within limited space and adapting to the complex circuit connection requirements. This characteristic makes them widely applicable in fields such as electronic equipment, medical devices, and aerospace. However, in energy storage connector plugs, when silicone rubber is used as the outer insulation layer, it is prone to receding relative to the metal shielding braided mesh layer when the cable is subjected to external forces such as stretching or bending. This is especially true when the wire diameter is large. While a larger wire diameter allows for a higher connector operating current, it also increases the risk of silicone rubber outer insulation layer receding. This receding phenomenon may lead to seal failure, failing to meet the connector's waterproof rating requirements, thereby increasing the risk of short circuits and electrical accidents, ultimately affecting the performance of the energy storage connector plug and the reliability of the entire circuit. Utility Model Content

[0004] The purpose of this utility model is to provide a connector plug and connector, which aims to solve the problem of the regression of the silicone rubber outer insulation protective layer when silicone rubber is used as the outer insulation protective layer of the energy storage connector plug.

[0005] This utility model proposes a connector plug, including a plug body and a cable fixing component. The plug body has a housing and at least a portion of the terminals installed in the housing. At least a portion of the terminals are located in the cable fixing component, and the cable is connected to the terminals. The cable fixing component has an outer sleeve, a retaining ring, and an inlet sleeve arranged coaxially. The outer sleeve is connected to the housing. The retaining ring has a limiting part that abuts against the inner side wall of the outer sleeve and a through-sleeve part connected to the limiting part. The limiting part has a limiting groove on one end face facing the terminals. The through-sleeve part abuts against the inner bottom wall of the outer sleeve on one end face away from the terminals. One end of the inlet sleeve is located in the limiting groove.

[0006] In one embodiment, the cable inlet sleeve includes a protrusion adapted to the limiting groove and a clamping portion connected to the protrusion. The protrusion is disposed in the limiting groove, and at least a portion of the clamping portion abuts against the inner wall of the cable insert.

[0007] In one embodiment, at least a portion of the clamping portion is riveted to the cable.

[0008] In one embodiment, the clamping portion has a flared opening on the side face away from the terminal block.

[0009] In one embodiment, the terminal block is fitted with an inner sleeve that is in communication with the shielding layer of the cable, and the outer wall of the inner sleeve abuts against the inner side wall of the outer sleeve.

[0010] In one embodiment, an insulating sleeve is provided between the terminal block and the inner sleeve, which abuts against the inner wall of the inner sleeve. One end of the insulating sleeve is connected to the terminal block. The insulating sleeve has an upper insulating part and a lower insulating part. The upper insulating part has a sliding groove on both sides in the axial direction, and the lower insulating part has a slider on both sides in the axial direction that matches the sliding groove. The upper insulating part and the lower insulating part together form a cavity for accommodating the terminal block.

[0011] In one embodiment, a sealing ring is provided between the inner sleeve and the retaining ring along the axial direction of the inner sleeve. The outer wall of the sealing ring is provided with a plurality of sealing protrusions. The plurality of sealing protrusions extend along the circumferential direction of the sealing ring and are spaced apart along the axial direction of the sealing ring. A sealing groove is formed between two adjacent sealing protrusions.

[0012] In one embodiment, the sealing ring is made of an elastic material;

[0013] Alternatively, a support member may be provided between the inner sleeve and the sealing ring along the axial direction of the inner sleeve;

[0014] Alternatively, a support member may be provided between the sealing ring and the retaining ring along the axial direction of the inner sleeve.

[0015] In one embodiment, the outer sleeve includes a sleeve portion and a stop portion connected to the sleeve portion. The stop portion has a stop groove inside. The outer wall of the limiting portion abuts against the inner wall of the sleeve portion. The sleeve portion is disposed in the stop groove and abuts against the bottom wall of the stop groove.

[0016] Alternatively, the housing may have a threaded portion, and the outer sleeve may have a threaded portion that is screwed into the threaded portion of the housing. The threaded portion may have an internal thread, and the threaded portion may have an external thread that is screwed into the internal thread.

[0017] Alternatively, the housing may contain conductive terminals and terminal connectors that are electrically connected to the conductive terminals and the wiring terminals;

[0018] Alternatively, a protective layer is provided between the outer insulation layer of the cable and the inlet sleeve, and at least part of the protective layer abuts against the inlet sleeve;

[0019] Alternatively, the retaining ring may have a rounded chamfer on the side of its end face away from the terminal block;

[0020] Alternatively, the end face of the inlet sleeve away from the terminal block may have a rounded chamfer.

[0021] This utility model also provides a connector, including the connector plug and connector socket described above, wherein the connector plug and the connector socket are inserted and mated to form a current path.

[0022] This utility model relates to a connector plug, comprising a plug body and a cable fixing component. The plug body has a housing and at least some terminals installed within the housing. At least some terminals are located within the cable fixing component, and the cable connects to the terminals. The cable fixing component has an outer sleeve, a retaining ring, and an inlet sleeve arranged coaxially. The outer sleeve is connected to the housing. The retaining ring has a limiting part that abuts against the inner wall of the outer sleeve and a through-sleeve part connected to the limiting part. The limiting part has a limiting groove on its end face facing the terminal. The through-sleeve part has its end face away from the terminal that abuts against the inner bottom wall of the outer sleeve. One end of the inlet sleeve is located in the limiting groove. This utility model, through the coaxial arrangement of the outer sleeve, retaining ring, and inlet sleeve, makes the entire cable fixing component structure compact, enabling effective cable fixing within a limited space. By using the retaining ring as both the through-sleeve part and the limiting part, with a limiting groove at one end of the limiting part and one end of the inlet sleeve located in the limiting groove, the cable is securely fixed inside the connector plug, reducing cable movement within the connector plug and thus lowering the risk of cable insulation layer retraction due to external force. Attached Figure Description

[0023] 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.

[0024] Figure 1 This is an exploded perspective view of a connector plug according to an embodiment of this utility model;

[0025] Figure 2 This is a three-dimensional structural schematic diagram of a connector plug according to an embodiment of the present invention;

[0026] Figure 3 This is a cross-sectional view of a connector plug according to an embodiment of the present invention;

[0027] Figure 4 yes Figure 3 Enlarged view of a section of the cable at point A;

[0028] Figure 5 This is a cross-sectional view of the retaining ring of a connector plug according to an embodiment of the present invention;

[0029] Figure 6 This is a cross-sectional view of the inlet sleeve of a connector plug according to an embodiment of the present invention.

[0030] Explanation of icon numbers:

[0031] label name label name label name 10 plug body 221 Limiting part 26 Support components 11 case 221A Limiting groove 27 Insulating sleeve 12 Terminal blocks 222 Wearing a cover 271 upper insulation part 13 conductive terminals 23 Inlet sleeve 272 Lower insulation part 14 Terminal connector 231 Protrusion 30 Cable 20 Cable fasteners 232 Clamping part 31 wire core 21 outerwear 232A horn opening 32 Inner insulation layer 211 socket 24 Inner sleeve 33 Shielding layer 212 Stop section 25 sealing ring 34 outer insulation layer 212A Stop groove 251 Sealing protrusion 35 protective layer 22 Snap ring 25A Sealing groove 100 Connector plug

[0032] 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

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] Energy storage connectors serve as connecting components between electrical devices and energy storage or charging devices, facilitating current transmission between the devices. Common energy storage connectors include connector plugs and connector sockets that connect via mating. The connector plug connects to cables, while the connector socket connects to the electrical device or other equipment. Conductivity is achieved between the connector plug and connector socket through the mating of conductive terminals and pins. For cable connections, terminals are typically provided inside the connector plug to connect the cable to the conductive terminals.

[0038] When silicone rubber is used as the outer insulation layer in energy storage connector plugs, it is prone to receding relative to the metal shielding braided mesh layer when the cable is subjected to external forces such as stretching or bending. This is especially true when the wire diameter is large. Although a larger wire diameter allows for a higher connector operating current, the risk of silicone rubber receding also increases. This receding phenomenon may lead to seal failure, failing to meet the connector's waterproof rating requirements, thereby increasing the risk of short circuits and electrical accidents, and ultimately affecting the performance of the energy storage connector plug and the reliability of the entire circuit.

[0039] To solve the above technical problems, please refer to Figures 1 to 6 This utility model provides a connector plug 100, including a plug body 10 and a cable fixing member 20. The plug body 10 has a housing 11 and a terminal block 12 at least partially installed in the housing 11. At least a portion of the terminal block 12 is located in the cable fixing member 20, and a cable 30 is connected to the terminal block 12. The cable fixing member 20 has an outer sleeve 21, a retaining ring 22, and an inlet sleeve 23 arranged coaxially. The outer sleeve 21 is connected to the housing 11. The retaining ring 22 has a limiting part 221 that abuts against the inner side wall of the outer sleeve 21 and a through part 222 connected to the limiting part 221. The limiting part 221 has a limiting groove 221A on one end face facing the terminal block 12. The through part 222 has one end face away from the terminal block 12 that abuts against the inner bottom wall of the outer sleeve 21. One end of the inlet sleeve 23 is located in the limiting groove 221A.

[0040] It should be noted that the connector plug 100 is applied to a terminal device. In some embodiments, the terminal device is an in-vehicle device. The in-vehicle device can be, but is not limited to, new energy vehicles, electric motorcycles, electric bicycles, ships, heavy trucks, mining trucks, industrial equipment, or urban rail transit vehicles. Urban rail transit vehicles include, but are not limited to, subways, light rail, high-speed rail, etc. In other embodiments, the connector plug 100 can also be used for other terminal devices, such as, but not limited to, indoor or outdoor lighting fixtures, etc. The connector plug 100 of this utility model can be widely used in various types of vehicles, communications, computers, and other consumer electronics, industrial, and transportation fields. For example, it can be installed on the mounting plate of new energy vehicles, electric bicycles, electric motorcycles, electric scooters, etc., and can adapt to more user environments. It should be noted that the cable 30 includes, from the inside out, a wire core 31, an inner insulation layer 32, a shielding layer 33, and an outer insulation layer 34. The wire core 31 is the conductive core part, usually made of copper or aluminum. The inner insulation layer 32 serves as electrical insulation and mechanical protection, and can be made of materials such as silicone rubber, rubber, polyvinyl chloride (PVC), and polyethylene (PE). The shielding layer 33 is used to reduce electromagnetic interference and is commonly made of metal foil, braided mesh, or metallized fiber. The outer insulation layer 34 is used for electrical insulation and to protect the internal structure from physical damage and environmental factors. Materials such as silicone rubber, rubber, polyvinyl chloride (PVC), or thermoplastic polyurethane (TPU) can be selected. For scenarios where cables may be frequently bent, such as the tail wire of a connector plug, the inner insulation layer 32 and the outer insulation layer 34 need to be made of silicone rubber with good flexibility.

[0041] Understandably, the connector plug 100 includes a plug body 10 and a cable retainer 20, which is used to secure the cable 30. The plug body 10 has a housing 11 and at least a portion of the terminals 12 installed within the housing 11. At least a portion of the terminals 12 is located within the cable retainer 20, and the cable 30 is connected to the terminals 12. When connecting the cable 30 to the terminals 12, the bare metal conductor, i.e., the wire core 31, needs to be exposed on the side of the cable 30 closest to the terminals 12. The wire core 31 is then connected to the terminals 12 by crimping or soldering. The terminals 12 within the connector plug 100 connect the cable 30 and the conductive terminals, allowing the connector plug 100 and connector socket to mate and form a current path.

[0042] Understandably, the cable fastener 20 has a coaxially arranged outer sleeve 21, retaining ring 22, and inlet sleeve 23. The outer sleeve 21, retaining ring 22, and inlet sleeve 23 are arranged coaxially to form a linear guide channel, preventing the cable 30 from deflecting or twisting during the fixing process. The outer sleeve 21, as the external support frame for the retaining ring 22 and inlet sleeve 23, is connected to the housing 11 and provides axial positioning. The outer sleeve 21 and the housing 11 can be connected by plug-in connection, snap-fit ​​connection, threaded connection, or other methods.

[0043] Understandably, the retaining ring 22 has a rounded chamfer on the side face away from the terminal 12 to facilitate the insertion of the cable inlet sleeve 23. Both the limiting part 221 and the through-sleeve part 222 of the retaining ring 22 are hollow structures with openings at both ends; they can be integrally formed or separate. The limiting part 221 of the retaining ring 22 axially fixes the cable 30 by axially fixing the cable inlet sleeve 23. The contact between the limiting part 221 and the inner wall of the outer sleeve 21 provides friction, preventing the cable 30 from shifting when pulled by external forces. Furthermore, a limiting groove 221A is formed on the side face of the limiting part 221 facing the terminal 12. By fitting the cable inlet sleeve 23 into the limiting groove 221A, the axial and radial movement of the cable inlet sleeve 23 is further reduced, thereby limiting the radial sliding of the outer insulation layer 34 of the cable 30 relative to the shielding layer 33 and preventing the cable 30 from retracting during insertion, removal, or vibration. The sleeve portion 222 of the retaining ring 22 prevents radial bending of the inlet sleeve 23, thereby preventing radial bending of the cable 30 and reducing cable retraction. Furthermore, the sleeve portion 222 abuts against the inner bottom wall of the outer sleeve 21, forming a rigid support point to distribute the insertion and extraction impact force. The cooperation between the retaining ring 22 and the inlet sleeve 23 ensures that the cable 30 is securely fixed inside the connector plug 100, reducing movement of the cable 30 within the connector plug 100 and thus lowering the risk of cable 30 outer insulation layer 34 retraction due to external force.

[0044] This utility model provides an embodiment, please refer to it. Figure 1 , Figure 3 , Figure 6 The cable inlet sleeve 23 includes a protrusion 231 adapted to the limiting groove 221A and a clamping part 232 connected to the protrusion 231. The protrusion 231 is provided in the limiting groove 221A, and at least part of the clamping part 232 abuts against the inner wall of the sleeve part 222.

[0045] This utility model provides an embodiment, please refer to it. Figure 6 The end face of the inlet sleeve 23 away from the terminal block 12 is provided with a rounded chamfer.

[0046] Understandably, the cable inlet sleeve 23 is a hollow structure with openings at both ends. The end face of the cable inlet sleeve 23 away from the terminal 12 has a rounded chamfer to facilitate the insertion of the cable 30. The protrusion 231 of the cable inlet sleeve 23 engages with the retaining ring limiting groove 221A, achieving axial positioning and radial limiting of the cable inlet sleeve 23. At least a portion of the clamping portion 232 of the cable inlet sleeve 23 abuts against the inner wall of the through-sleeve portion 222 of the retaining ring 22, achieving lateral support and stress dispersion for the cable inlet sleeve 23. The clamping portion 232 of the cable inlet sleeve 23 can be completely abutted against the inner wall of the through-sleeve portion 222, or it can be partially abutted against the inner side wall of the through-sleeve portion 222 and partially protruding from the outer sleeve 21.

[0047] This utility model provides an embodiment, please refer to it. Figure 3 At least part of the clamping part 232 is riveted to the cable 30.

[0048] Understandably, part of the clamping portion 232 of the inlet sleeve 23 abuts against the inner wall of the through sleeve portion 222, and part extends out of the outer sleeve 21. Using riveting equipment, such as a riveting machine, the clamping portion 232 extending out of the outer sleeve 21, that is... Figure 3 Pressure is applied at point B to ensure a tight fit between the cable 30 and the cable 30, forming a strong mechanical connection and further preventing the outer insulation layer 34 of the cable 30 from retracting.

[0049] This utility model provides an embodiment, please refer to it. Figure 2 The clamping part 232 forms a flared opening 232A on the side of its end face away from the terminal 12.

[0050] Understandably, part of the clamping portion 232 of the inlet sleeve 23 abuts against the inner wall of the through sleeve portion 222, and part extends out of the outer sleeve 21. Using riveting equipment, such as a riveting machine, the clamping portion 232 extending out of the outer sleeve 21, that is... Figure 3 Pressure is applied at point B to ensure a tight fit with the cable 30, forming a robust mechanical connection and further preventing the outer insulation layer 34 of the cable 30 from retracting. A flared opening 232A is formed in the area of ​​the clamping part 232 away from the terminal 12 that is not pressed, which helps improve the bending radius of the tail cable 30.

[0051] This utility model provides an embodiment, please refer to it. Figure 3 , Figure 4 A protective layer 35 is provided between the outer insulation layer 34 of the cable 30 and the inlet sleeve 23, and at least part of the protective layer 35 abuts against the inlet sleeve 23.

[0052] Understandably, adding a protective layer 35 between the outer insulation layer 34 and the inlet sleeve 23 can further protect the cable 30 and prevent damage to the outer insulation layer of the cable 30 when the clamping part 232 of the inlet sleeve 23 clamps the cable 30. Cloth-based tape is a type of tape with cotton, polyester fiber, or nylon cloth as the base material and coated with rubber or acrylic adhesive. Cloth-based tape can serve as the protective layer 35. Of course, polyvinyl chloride tape, polypropylene (PP) braided tape, neoprene rubber tape, polyester fiber tape, nylon braided tape, etc., can also be used as the protective layer 35.

[0053] This utility model provides an embodiment, please refer to it. Figure 1 , Figure 3 The terminal block 12 is fitted with an inner sleeve 24 that is in communication with the shielding layer 33 of the cable 30. The outer wall of the inner sleeve 24 abuts against the inner side wall of the outer sleeve 21.

[0054] Understandably, the inner sleeve 24 is a hollow structure with openings at both ends to accommodate the wiring terminals 12. The inner sleeve 24 is connected to the shielding layer 33 of the cable 30 through a conductive material, such as copper or aluminum, forming a continuous electromagnetic shielding circuit to suppress external interference.

[0055] This utility model provides an embodiment, please refer to it. Figure 1 , Figure 3 An insulating sleeve 27 is provided between the terminal 12 and the inner sleeve 24, which abuts against the inner wall of the inner sleeve 24. One end of the insulating sleeve 27 is connected to the terminal 12. The insulating sleeve 27 has an upper insulating part 271 and a lower insulating part 272. The upper insulating part 271 has a sliding groove on both sides in the axial direction, and the lower insulating part 272 has a slider matching the sliding groove on both sides in the axial direction. The upper insulating part 271 and the lower insulating part 272 enclose a cavity to accommodate the terminal 12.

[0056] Understandably, the insulating sleeve 27 has an annular groove on its outer wall near the terminal 12, and the terminal 12 has a corresponding annular boss. The insulating sleeve 27 and the terminal 12 are fixedly connected through the engagement of the annular groove and the annular boss. Furthermore, configuring the insulating sleeve 27 as an upper insulating part 271 and a lower insulating part 272 facilitates the installation and removal of the upper insulating part 271 and the lower insulating part 272 from the housing 11 of the plug body 10, and further shields against external interference. Specifically, the upper insulating part 271 has a first groove on its outer wall near the terminal 12, and the lower insulating part 281 has a second groove on its outer wall near the terminal 12. The first groove and the second groove together form an annular groove.

[0057] This utility model provides an embodiment, please refer to it. Figure 1 , Figure 3Along the axial direction of the inner sleeve 24, a sealing ring 25 is provided between the inner sleeve 24 and the retaining ring 22. The outer wall of the sealing ring 25 is provided with multiple sealing protrusions 251. The multiple sealing protrusions 251 extend along the circumferential direction of the sealing ring 25 and are spaced apart along the axial direction of the sealing ring 25. A sealing groove 25A is formed between two adjacent sealing protrusions 251.

[0058] Understandably, the sealing ring 25 is made of elastic materials, such as, but not limited to, rubber or plastic. The elastic material can be selected from thermoplastic polymers or thermosetting elastomers. The thermoplastic polymer is selected from the group consisting of fluoropolymers, polyurethanes, vulcanized rubber, polyvinyl chloride, thermoplastic elastomers, high-density polyethylene, ethylene vinyl acetate, copolymers / polyolefins, polypropylene, acrylonitrile butadiene styrene, polytetrafluoroethylene, or blends thereof. In this embodiment, the sealing ring 25 is configured as a closed-loop structure, thereby improving the axial waterproofing effect of the sealing ring 25. Furthermore, the outer wall of the sealing ring 25 is provided with a plurality of sealing protrusions 251, which extend along the circumferential direction of the sealing ring 25 and are spaced apart along the axial direction of the sealing ring 25, forming a sealing groove 25A between adjacent sealing protrusions 251. The sealing protrusions 251 and sealing grooves 25A are arranged alternately to form a multi-stage sealing path. The sealing protrusions 251 contact adjacent components, such as the inner sleeve 24 or the retaining ring 22, and form an initial seal through elastic compression. The sealing grooves 25A capture intruding liquids or particles to prevent them from penetrating to deeper layers.

[0059] This utility model provides an embodiment, please refer to it. Figure 1 , Figure 3 Along the axial direction of the inner sleeve 24, a support member 26 is provided between the inner sleeve 24 and the sealing ring 25; or, a support member 26 is provided between the sealing ring 25 and the retaining ring 22.

[0060] Understandably, the support member 26 is made of a rigid material, which can be a metal such as steel or aluminum alloy, or a polymer material such as polycarbonate (PC) or polyphenylene oxide (PPO). Any material that deforms minimally under stress and maintains geometric stability is acceptable and is not limited here. When assembling the cable 30, the support member 26 is provided between the inner sleeve 24 and the sealing ring 25. The sealing ring 25 is further compressed by the support member 26 and the retaining ring 22 to further improve the sealing and waterproof function of the connector plug 100. The support member 26 is provided between the inner sleeve 24 and the sealing ring 25, and also between the sealing ring 25 and the retaining ring 22. Thus, the sealing ring 25 is sandwiched between the two support members 26, which further compress the sealing ring 25 to further improve the sealing and waterproof function of the connector plug 100.

[0061] This utility model provides an embodiment, please refer to it. Figure 1 , Figure 3 The outer sleeve 21 includes a sleeve portion 211 and a stop portion 212 connected to the sleeve portion 211. The stop portion 212 has a stop groove 212A inside. The outer wall of the limiting portion 221 abuts against the inner side wall of the sleeve portion 211. The through-sleeve portion 222 is provided in the stop groove 212A and abuts against the bottom wall of the stop groove 212A.

[0062] Understandably, the sleeve portion 211 of the outer sleeve 21 cooperates with the limiting portion 221 of the retaining ring 22 to provide axial limiting and friction locking. The stop portion 212 of the outer sleeve 21 constrains the sleeve portion 222 of the retaining ring 22 through the stop groove 212A to prevent radial displacement.

[0063] This utility model provides an embodiment, please refer to it. Figure 1 , Figure 3 The housing 11 has a threaded portion, and the outer sleeve 21 has a threaded portion that is screwed into the threaded portion of the housing 11. The threaded portion has an internal thread, and the threaded portion has an external thread that is screwed into the internal thread. The threaded connection provides a tight connection and is easy to disassemble.

[0064] This utility model provides an embodiment, please refer to it. Figure 3 The housing 10 is provided with conductive terminals 13 and terminal connectors 14 that are electrically connected to the conductive terminals 13 and wiring terminals 12.

[0065] Understandably, the housing 10 contains conductive terminals 13 and terminal connectors 14 that are electrically connected to the conductive terminals 13 and wiring terminals 12. The structure of the terminal connectors 14 can be integrated with the conductive terminals 13 and wiring terminals 12, or it can be separate from them; no limitation is made here. Its specific structure can refer to the prior art, and no limitation is made here.

[0066] The assembly process of the connector plug of this utility model is as follows:

[0067] First, peel off the outer insulation layer 34, shielding layer 34, and inner insulation layer 32 at one end of the cable 30 to expose the wire core 31. The outer insulation layer 34 should be peeled off more thoroughly than the shielding layer 34 and the inner insulation layer 32. Wrap an appropriate amount of cloth tape around the cable 30 at a suitable location. Second, pass the end of the wire core 31 of the cable 30 sequentially through the outer sleeve 21, retaining ring 22, inlet sleeve 23, inner sleeve 24, sealing ring 25, and support member 26 along the direction from the plug body 10 toward the cable fixing member 20. Third, after crimping the exposed wire core 31 to the terminal block 12, assemble the first groove and the second groove of the upper insulation part 271 and the lower insulation part 272 into the annular boss of the terminal block 12, and fit the inner sleeve 24 onto the insulation sleeve. 27 is external and connected to the shielding layer 33 of the cable 30; then, the support 26, sealing ring 25, inlet sleeve 23, and retaining ring 22 are pushed toward the plug body 10 in sequence and abut against the end face of the plug body 10. At the same time, the protrusion 231 of the inlet sleeve 23 is received in the limiting part 221 of the retaining ring 22; finally, the outer sleeve 21 is sleeved on the outside of the inner sleeve 24, sealing ring 25, and retaining ring 22 and threadedly connected to the housing 11, so that the through part 222 of the retaining ring 22 abuts against the bottom wall of the stop groove 212A of the stop part 212 of the outer sleeve 21. The clamping part 232 of the inlet sleeve 23 exposed outside the outer sleeve 21 is riveted by a riveting device, thus completing the installation of the connector plug 100.

[0068] This utility model also proposes a connector, including the aforementioned connector plug 100 and connector socket, which are inserted and mated to form a current path. Referring to the above embodiments, since this connector adopts all the technical solutions of the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here.

[0069] 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.

[0070] 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 plug, characterized in that, The device includes a plug body and a cable fixing component. The plug body has a housing and at least a portion of the terminals installed within the housing. At least a portion of the terminals are located within the cable fixing component, and the cable is connected to the terminals. The cable fixing component has an outer sleeve, a retaining ring, and an inlet sleeve arranged coaxially. The outer sleeve is connected to the housing. The retaining ring has a limiting part that abuts against the inner wall of the outer sleeve and a through-sleeve part connected to the limiting part. The limiting part has a limiting groove on one end face facing the terminals. The through-sleeve part abuts against the inner bottom wall of the outer sleeve on one end face away from the terminals. One end of the inlet sleeve is located in the limiting groove.

2. The connector plug as described in claim 1, characterized in that, The cable inlet sleeve includes a protrusion adapted to the limiting groove and a clamping portion connected to the protrusion. The protrusion is disposed in the limiting groove, and at least a portion of the clamping portion abuts against the inner wall of the cable insert.

3. The connector plug as described in claim 2, characterized in that, At least a portion of the clamping part is riveted to the cable.

4. The connector plug as described in claim 3, characterized in that, The clamping part has a flared opening on the side of its end face away from the terminal block.

5. The connector plug as described in claim 1, characterized in that, The terminal block is fitted with an inner sleeve that is in communication with the shielding layer of the cable, and the outer wall of the inner sleeve abuts against the inner side wall of the outer sleeve.

6. The connector plug as described in claim 5, characterized in that, An insulating sleeve is provided between the terminal block and the inner sleeve, which abuts against the inner wall of the inner sleeve. One end of the insulating sleeve is connected to the terminal block. The insulating sleeve has an upper insulating part and a lower insulating part. The upper insulating part has a sliding groove on both sides in the axial direction. The lower insulating part has a slider on both sides in the axial direction that matches the sliding groove. The upper insulating part and the lower insulating part together form a cavity to accommodate the terminal block.

7. The connector plug as described in claim 5, characterized in that, Along the axial direction of the inner sleeve, a sealing ring is provided between the inner sleeve and the retaining ring. The outer wall of the sealing ring is provided with multiple sealing protrusions. The multiple sealing protrusions extend along the circumferential direction of the sealing ring and are spaced apart along the axial direction of the sealing ring. A sealing groove is formed between two adjacent sealing protrusions.

8. The connector plug as described in claim 7, characterized in that, The sealing ring is made of an elastic material; Alternatively, a support member may be provided between the inner sleeve and the sealing ring along the axial direction of the inner sleeve; Alternatively, a support member may be provided between the sealing ring and the retaining ring along the axial direction of the inner sleeve.

9. The connector plug as claimed in claim 1, characterized in that, The outer sleeve includes a sleeve portion and a stop portion connected to the sleeve portion. The stop portion has a stop groove inside. The outer wall of the limiting portion abuts against the inner wall of the sleeve portion. The through-sleeve portion is disposed in the stop groove and abuts against the bottom wall of the stop groove. Alternatively, the housing may have a threaded portion, and the outer sleeve may have a threaded portion that is screwed into the threaded portion of the housing. The threaded portion may have an internal thread, and the threaded portion may have an external thread that is screwed into the internal thread. Alternatively, the housing may contain conductive terminals and terminal connectors that are electrically connected to the conductive terminals and the wiring terminals; Alternatively, a protective layer is provided between the outer insulation layer of the cable and the inlet sleeve, and at least part of the protective layer abuts against the inlet sleeve; Alternatively, the retaining ring may have a rounded chamfer on the side of its end face away from the terminal block; Alternatively, the end face of the inlet sleeve away from the terminal block may have a rounded chamfer.

10. A connector comprising a connector plug and a connector socket as described in any one of claims 1-9, the connector plug and the connector socket being mated together to form a current path.

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