Waterproof wire end connector

Abstract

The utility model discloses a waterproof wire end connector, which comprises a plastic shell, an elbow shielding shell, a wire end conductor assembly and a cable assembly, and the rear end of the plastic shell is provided with a conductor cavity; the front end of the elbow shielding shell vertically extends out of a plugging cylinder, and the rear end of the elbow shielding shell is provided with a cable cavity. The cable cavity is communicated with the inner cavity of the plugging cylinder to form an elbow cavity, and the elbow cavity is provided with an opening, an insulating rear cover and a metal rear cover, so that the cable assembly and the wire end conductor assembly can be electrically connected conveniently; the waterproof wire end connector is also provided with multiple sealing waterproof members including a silica gel waterproof ring, a sealing ring, a waterproof cover and a waterproof plug. The waterproof wire end connector provided by the utility model is compact in overall structure, saves more installation space, optimizes layout, and is high in integration level; a multi-layer sealing waterproof system is adopted, and multi-sealing waterproof guarantee is achieved; the use requirements of scenes with complex structure, limited space, steering requirement and double-channel parallel requirement are met, and high-reliability waterproofness is achieved.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a waterproof wire end connector. Background Technology

[0002] FAKRA connectors are coaxial connectors used for radio frequency (RF) signal transmission and are widely used in the automotive industry. With the accelerating pace of automotive intelligence and connectivity, in-vehicle electronic functions are becoming increasingly sophisticated, with the widespread adoption of modules such as GPS navigation, smartphone connectivity, and autonomous driving, leading to a significant increase in wiring density within vehicles. Against this backdrop, more stringent requirements are being placed on FAKRA connectors, including smaller space requirements, dual-channel parallel signal transmission, and higher waterproof reliability.

[0003] Traditional FAKRA connectors have significant application limitations in installation locations requiring steering (such as close to the vehicle body or ECU housing), scenarios requiring dual-channel parallel operation (such as surround-view cameras, autonomous driving cameras, multi-sensor modules, etc.), and in complex and space-constrained automotive interior environments. The overall structure of traditional FAKRA connectors occupies a large proportion of space, which can easily lead to interference and friction between wire harnesses and excessive bending of cables. At the same time, the assembly reliability of its waterproof structure is difficult to guarantee in confined spaces.

[0004] Therefore, there is an urgent need for connector assemblies that can avoid excessive cable bending, save space, have high waterproof performance, and ensure dual-channel parallelism. Utility Model Content

[0005] The purpose of this invention is to overcome the problems mentioned above in the background technology: to provide a waterproof cable connector that can be used in scenarios with complex structures, limited space, need for turning, and need for dual-channel parallel operation, which can avoid excessive bending of cables, save space, and at the same time have high waterproof performance.

[0006] The technical solution adopted in this utility model is:

[0007] A waterproof wire connector includes a plastic housing, an elbow shielding shell, a wire end conductor assembly, and a cable assembly. The rear end of the plastic housing has a conductor cavity for accommodating the wire end conductor assembly, and the elbow shielding shell has a cable cavity for accommodating the cable assembly.

[0008] The elbow shielding shell is an integral structure, and also includes a shielding shell body and a plug-in tube extending vertically from the front end of the shielding shell body. The plug-in tube is inserted into the conductor cavity.

[0009] The cable cavity is connected to the internal cavity of the corresponding plug tube to form a bend cavity. The shielding shell body is provided with an opening in the bend cavity. The cable assembly and the wire end conductor assembly are electrically connected in the bend cavity.

[0010] It also includes a silicone waterproof ring disposed in the front cavity of the plastic shell, a sealing ring disposed at the front end of the elbow shield, a waterproof plug and a waterproof cap disposed at the rear end of the elbow shield, and an insulating rear cover and a metal rear cover fixed on the opening.

[0011] As a further improvement to the above solution, a secondary locking fastener is installed at the rear end of the plastic shell through a lock hole; the secondary locking fastener is a sheet-like structure, with a U-shaped cutout in the middle of one end, and fixing protrusions on both sides near the U-shaped cutout; a fixing plate is provided at the other end; a locking groove is provided circumferentially on the outer side of the plug tube, the U-shaped cutout is adapted to the locking groove, and the locking groove, lock hole and the secondary locking fastener cooperate to limit and fix the plastic shell and the elbow shield shell to each other.

[0012] As a further improvement to the above solution, the number of the cable cavity, the conductor cavity, the plug-in cylinder, and the secondary locking element are all two.

[0013] As a further improvement to the above solution, the lock hole matches the secondary locking fastener, including two first holes on the left and right sides of the plastic shell and four second holes arranged in pairs on the upper and lower sides of the plastic shell; the fixing plate is fixed in the first hole and the fixing protrusion is fixed in the second hole.

[0014] As a further improvement to the above solution, the opening exposes the internal cavities of the two plug-in cylinders, and a dumbbell-shaped protrusion is provided in the middle of the exposed internal cavity. The opening and the dumbbell-shaped protrusion together fix the insulating back cover; the metal back cover is fixed to the insulating back cover by riveting.

[0015] As a further improvement to the above solution, the outer side of the plug-in cylinder and the side wall of the insulating rear cover are respectively provided with waterproof grooves in the circumference, and the sealing ring is matched and installed in the waterproof grooves.

[0016] As a further improvement to the above solution, a baffle is also provided at the upper end of the plastic shell to limit the elbow shielding shell.

[0017] As a further improvement to the above solution, the bottom inner side of the baffle and the bottom of the second hole sidewall below the plastic shell are respectively provided with limiting grooves; the elbow shield shell and the limiting groove of the plastic shell are respectively provided with limiting barbs, and the limiting barbs and the limiting grooves are engaged to form a limiting lock.

[0018] As a further improvement to the above solution, the elbow shielding shell extends to the cable assembly outlet end at the tail end and is provided with an elliptical connecting part. The waterproof plug is installed inside the elliptical connecting part, and the waterproof cover is snapped and fixed to the outside of the elliptical connecting part.

[0019] As a further improvement to the above solution, the cable cavity is matched with the cable assembly, which includes a cable, a T-shaped tube and a crimping tube crimped onto the cable, and the cable holding force is enhanced by secondary riveting on both sides of the outer plastic shell.

[0020] As a further improvement to the above solution, a fastening part is also provided on the outside of one end of the front cavity of the plastic shell. The fastening part includes a long strip buckle and an outwardly protruding fixing frame. The fastening part is used to lock and fix with the mating connector.

[0021] Compared with the prior art, the advantages of the waterproof cable connector provided by this utility model are as follows: This utility model, through the design and coordination of the plastic shell, the elbow shield shell, the cable assembly, and the cable conductor assembly, makes the overall structure compact, saves more installation space, optimizes the layout, and has a high degree of integration; it adopts a multi-level sealing and waterproof system to achieve multiple sealing and waterproof guarantees; it avoids excessive bending of the cable while having high waterproof performance, meeting the needs of scenarios with complex structures, limited space, need for turning, and need for dual-channel parallel operation. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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 these drawings without creative effort.

[0023] Figure 1 An exploded perspective view of a waterproof wire end connector provided by this utility model;

[0024] Figure 2 A first-view structural schematic diagram of a waterproof wire end connector provided by this utility model;

[0025] Figure 3 A first-view structural schematic diagram of a waterproof wire end connector provided by this utility model;

[0026] Figure 4 A first-view structural diagram of the plastic shell provided by this utility model;

[0027] Figure 5 A second-view structural diagram of the plastic shell provided by this utility model;

[0028] Figure 6 A third-view structural diagram of the plastic shell provided by this utility model;

[0029] Figure 7 Cross-sectional view of the plastic shell provided by this utility model

[0030] Figure 8 A first-view structural schematic diagram of the elbow shielding shell provided by this utility model;

[0031] Figure 9 A schematic diagram of the elbow shielding shell provided by this utility model from a second perspective.

[0032] Figure 10 A third-view structural diagram of the elbow shielding shell provided by this utility model;

[0033] Figure 11 Cross-sectional view of the elbow shielding shell provided by this utility model

[0034] Figure 12 A schematic diagram of the secondary locking fastener structure provided by this utility model.

[0035] Figure 13 A cross-sectional view of a waterproof wire end connector provided by this utility model.

[0036] The components represented by each number in the attached diagram are explained below:

[0037] 100-Plastic outer shell, 101-Conductor cavity, 102-Lock hole, 1021-First hole, 1022-Second hole, 103-Baffle, 104-Limiting groove, 105-Fastening part, 1051-Long strip buckle, 1052-Fixing frame, 200-Elbow shielding shell, 201-Shielding shell body, 202-Plug-in tube, 2021-Locking groove, 203-Cable cavity, 204-Opening, 205-Dumbbell-shaped protrusion, 206-Waterproof groove, 207-Limiting barb, 208-Oval connector 2081-Positioning strip, 2082-Snap-fit ​​protrusion, 300-Line end conductor assembly, 301-Terminal shielding shell, 302-Insulator, 303-Center terminal, 400-Cable assembly, 401-Cable, 402-T-tube, 403-Crimping tube, 501-Silicone waterproof ring, 502-Sealing ring, 503-Waterproof plug, 504-Waterproof cover, 600-Secondary locking fastener, 601-Fixing protrusion, 602-Fixing plate, 700-Insulating back cover, 800-Metal back cover.

[0038] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. Detailed Implementation

[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0040] refer to Figure 1-3 A waterproof wire end connector includes a plastic shell 100, an elbow shield shell 200, a wire end conductor assembly 300, and a cable assembly 400. The rear end of the plastic shell 100 is provided with a conductor cavity 101 to accommodate the wire end conductor assembly 300, and the elbow shield shell 200 is provided with a cable cavity 203 to accommodate the cable assembly 400.

[0041] Combination Figure 8-11 The elbow shielding shell 200 is an integral structure, including a shielding shell body 201 and a plug-in tube 202 extending vertically from the front end of the shielding shell body 201. The plug-in tube 202 is inserted into the conductor cavity 101.

[0042] Combination Figure 11 and 13 The cable cavity 203 is connected to the internal cavity of the corresponding plug tube 202 to form a bend cavity. The shield shell body 201 is provided with an opening 204 at the bend cavity. Based on this structure, the wire end conductor assembly 300 can reach the bend cavity by extending from the conductor cavity 101 and the plug tube 202. The cable assembly 400 can also reach the bend cavity by extending from the cable cavity 203. The wire end conductor assembly 300 and the cable assembly 400 can be welded at the opening 204 at the bend cavity to achieve electrical connection.

[0043] Furthermore, referring to Figure 1 The waterproof cable connector provided by this utility model further includes a silicone waterproof ring 501 disposed in the front cavity of the plastic housing 100, a sealing ring 502 disposed at the front end of the elbow shield 200, a waterproof plug 503 and a waterproof cover 504 disposed at the rear end of the elbow shield 200, and an insulating rear cover 700 and a metal rear cover 800 fixed on the opening 204. By adopting the above-mentioned waterproof cable connector structure design, the needs of scenarios with complex structures, limited space, and the need for turning can be met, and excessive bending of the cable 401 can be avoided, saving space.

[0044] Specifically, the front end of the plastic shell 100 has a hollow cavity, and the silicone waterproof ring 501 is directly molded into this hollow cavity using liquid silicone. The remaining components—the plastic shell 100, conductor cavity 101, silicone waterproof ring 501, and connector sleeve 202—work together to waterproof and secure the conductor assembly 300. The elbow shield shell 200, cable cavity 203, waterproof plug 503, and waterproof cover 504 work together to waterproof and secure the cable assembly 400. The sealing ring 502 is used for waterproofing the connection between the conductor assembly 300 and the cable assembly 400. By providing waterproof sealing components at the front end of the plastic shell 100, at the connection point between the plastic shell 100 and the elbow shield shell 200, and at the tail end of the elbow shield shell 200, a multi-level waterproof sealing system is employed to ensure multiple layers of waterproof protection.

[0045] Combination Figure 12 Furthermore, a secondary locking element 600 is installed at the rear end of the plastic shell 100 through the lock hole 102; the secondary locking element 600 has a sheet-like structure, and a U-shaped hollow part is provided in the middle of one end of the secondary locking element 600. The U-shaped hollow part is adapted to the locking groove 2021 provided in the outer circumferential direction of the plug-in tube 202. Fixing protrusions 601 are provided on both sides near the U-shaped hollow part; a fixing plate 602 is provided at the other end of the secondary locking element 600. The secondary locking element 600 has a simple structure, is easy to process and manufacture, and is also convenient for fixing the lock.

[0046] Furthermore, the cable cavity 203, conductor cavity 101, plug tube 202, and secondary locking element 600 are all in pairs, enabling the waterproof cable end connector to meet the needs of scenarios requiring dual-channel parallel operation.

[0047] Combination Figure 4-7 Furthermore, the lock hole 102 matches the secondary locking fastener 600, including two first holes 1021 located on the left and right sides of the plastic housing 100, and four second holes 1022, wherein every two second holes 1022 are located on the upper and lower sides of the plastic housing 100. The fixing plate 602 is fixed in the first hole 1021, and the fixing protrusion 601 is fixed in the second hole 1022.

[0048] Therefore, refer to Figure 12 and Figure 1 The sheet-like secondary locking fasteners 600 are inserted into the lock holes 102 from the left and right sides of the plastic shell 100, and are fixed to the plastic shell 100 through the first hole 1021 and the second hole 1022. The U-shaped hollow part in the middle is restricted in its vertical position by the locking groove 2021 of the plug-in tube 202. Thus, the interlocking of the secondary locking fasteners 600, the lock holes 102, and the locking groove 2021 provides a second locking reinforcement and fixation for the plastic shell 100 and the elbow shield shell 200.

[0049] Reference Figure 4-7Furthermore, a baffle 103 is provided at the upper end of the plastic shell 100 to limit the elbow shield shell 200.

[0050] Furthermore, the bottom inner side of the baffle 103 and the bottom side wall of the second hole 1022 below the plastic shell 100 are respectively provided with limiting grooves 104; the limiting grooves 104 of the elbow shield shell 200 and the plastic shell 100 are respectively provided with limiting barbs 207 at the corresponding connection points, and the limiting barbs 207 and the limiting grooves 104 engage to form a limiting lock.

[0051] The baffle 103 facilitates the positioning and limiting of the elbow shield 200 during insertion. The limiting groove 104 on the plastic shell 100 and the limiting barb 207 on the elbow shield 200 interlock, which is the first locking of the connector. After the insertion tube 202 of the elbow shield 200 is inserted into the conductor cavity 101 of the plastic shell 100, the limiting barb 207 abuts against the limiting groove 104 to prevent displacement during use and to prevent the connector from falling off due to vibration.

[0052] Reference Figure 8-11 Furthermore, the shielding shell body 201 has an opening 204 and an elliptical insulating back cover 700 at the elbow cavity formed by the plug-in cylinder 202 and the cable cavity 203. The opening 204 exposes the internal cavities of the two plug-in cylinders 202, and a dumbbell-shaped protrusion 205 is provided in the middle of the two exposed internal cavities. The opening 204 and the dumbbell-shaped protrusion 205 together fix the insulating back cover 700. Then, the metal back cover 800 is riveted and fixed to the insulating back cover 700 by riveting at four points around the opening 204. By opening the opening 204 and the elliptical insulating back cover 700 on the shielding shell body 201 at the elbow cavity, the welding of the wire end conductor assembly 300 and the cable assembly 400 can be facilitated, realizing the electrical connection between the wire end conductor assembly 300 and the cable assembly 400.

[0053] Reference Figure 8-11 Furthermore, waterproof grooves 206 are provided circumferentially on the outer side of the plug-in sleeve 202 and the side wall of the insulating rear cover 700, and sealing rings 502 are installed in the waterproof grooves 206. The sealing rings 502 are located at the connection between the plastic shell 100 and the elbow shield shell 200. By providing two sealing lines on the side wall of the insulating rear cover 700 and the outer side of the plug-in sleeve 202, the waterproof performance of the connector connection at the waterproof line end is doubly guaranteed.

[0054] Reference Figure 8-11Furthermore, the elbow shield 200 extends to the cable assembly 400 outlet end with an elliptical connecting portion 208. A waterproof plug 503 is installed inside the elliptical connecting portion 208, and a waterproof cover 504 is secured to the outside of the elliptical connecting portion 208 by a positioning strip 2081 and a snap-fit ​​protrusion 2082. By providing a waterproof plug 503 and a waterproof cover 504 at the cable assembly 400 outlet end of the elbow shield 200, the waterproof performance of the waterproof cable end connector cable assembly 400 outlet end is doubly guaranteed.

[0055] Reference Figure 1 The structure of the cable assembly 400 is described below. The cable assembly 400 includes a cable 401, a T-tube 402, and a crimping tube 403. The T-tube 402 and the crimping tube 403 are crimped and fixed to the cable 401. The T-shaped part of the T-tube 402 protrudes and abuts against the front end of the crimping tube 403. At the point where the T-tube 402 and the crimping tube 403 abut, secondary riveting is performed on both sides of the outer side of the elbow shield 200 to provide holding force for the cable 401. In particular, the T-tube 402 and the crimping tube 403 are made of copper.

[0056] Specifically, the cable cavity 203 is matched with the cable assembly 400. The cable cavity 203 is provided with a step, which can form a limit with the T-shaped tube 402 in front. Combined with the above-mentioned secondary riveting point, it can be limited behind the protruding T-part of the T-shaped tube 402, thereby fixing the cable assembly 400.

[0057] Reference Figure 13 This utility model provides a waterproof cable end connector. During assembly, the T-shaped tube 402 is first crimped and fixed to the cable 401, and then inserted into the elbow shield 200. At the same time, a portion of the T-shaped tube 402 extends into the elbow shield 200 to ensure concentric insertion. The T-shaped tube 402 is then riveted and fixed on both sides of the outside of the elbow shield 200, further securing the T-shaped tube 402, crimping tube 403, and cable 401, thereby strengthening the holding force of the cable 401.

[0058] Specifically, the conductor assembly 300 is provided with a terminal shield 301, an insulator 302, and a center terminal 303 in sequence from the outside to the inside. The center terminal 303 is welded to the cable 401 to achieve an electrical connection with the connector.

[0059] Reference Figure 4-7 Furthermore, a fastening part 105 is provided on the outside of one end of the front cavity of the plastic shell 100. The fastening part 105 includes a long strip buckle 1051 and an outwardly protruding fixing frame 1052. The fastening part 105 is used to lock and fix with the mating connector.

[0060] Reference Figure 13The entire connector uses a silicone waterproof ring 501 at the head of the plastic shell 100 to match the mating connector for waterproofing. In the middle, in front of the secondary locking part 600, that is, in front of the elbow shield shell 200, a sealing ring 502 is assembled for sealing. At the rear of the elbow shield shell 200, that is, on the insulating back cover 700, a sealing ring 502 is also used to ensure that the middle part is waterproof. The tail is sealed with a waterproof plug 503 and a waterproof cover 504 to ensure waterproofing.

[0061] This invention is designed to meet the needs of waterproof line connectors in installation locations with limited space, requiring turning, and in scenarios where dual channels need to be used in parallel. A waterproof wire-end connector is proposed, comprising a plastic shell 100, a bend shield 200, a wire-end conductor assembly 300, and a cable assembly 400. The plastic shell 100 has two conductor cavities 101 at its rear end. The bend shield 200 has two vertically extending plug tubes 202 at its front end and two cable cavities 203 at its rear end. The cable cavities 203 communicate with the internal cavities of the plug tubes 202 to form a bend cavity. The plug tubes 202 are inserted into the conductor cavities 101. The cable assembly 400 and the wire-end conductor assembly 300 are electrically connected within the bend cavity. Multiple waterproof sealing components are employed to improve the sealing and waterproof performance of the connector's front and rear ends and the connection points. The waterproof wire-end connector provided by this invention has a compact overall structure, saving installation space, optimizing layout, and achieving high integration. It employs a multi-level sealing and waterproofing system to achieve multiple layers of waterproof protection. It avoids excessive bending of the cable 401 while maintaining high waterproof performance, meeting the needs of scenarios with complex structures, limited space, requiring turning, and requiring dual-channel parallel operation.

[0062] In the description of this utility model, it should be understood that the terms "longitudinal", "transverse", "thickness", "upper", "lower", "front", "rear", "left", "right", "back", "vertical", "horizontal", "vertical", "flat", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0063] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0064] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The above embodiments are preferred embodiments of this utility model, but not all embodiments. Any equivalent changes to the technical solutions of this utility model made by those skilled in the art after reading this utility model specification are covered by the claims of this utility model.

Claims

1. A waterproof wire-end connector, comprising a plastic housing (100), a bend shielding shell (200), a wire-end conductor assembly (300), and a cable assembly (400), wherein the rear end of the plastic housing (100) is provided with a conductor cavity (101) for accommodating the wire-end conductor assembly (300), and the bend shielding shell (200) is provided with a cable cavity (203) for accommodating the cable assembly (400), characterized in that, The elbow shielding shell (200) is an integral structure, including a shielding shell body (201) and a plug-in tube (202) extending vertically from the front end of the shielding shell body (201). The plug-in tube (202) is inserted into the conductor cavity (101). The cable cavity (203) is connected to the internal cavity of the corresponding plug tube (202) to form a bend cavity. The shield shell body (201) is provided with an opening (204) at the bend cavity. The cable assembly (400) and the wire end conductor assembly (300) are electrically connected at the bend cavity. It also includes a silicone waterproof ring (501) disposed in the front cavity of the plastic shell (100), a sealing ring (502) disposed at the front end of the elbow shield (200), a waterproof plug (503) and a waterproof cap (504) disposed at the rear end of the elbow shield (200), and an insulating back cover (700) and a metal back cover (800) fixed on the opening (204).

2. The waterproof cable connector according to claim 1, characterized in that, The plastic shell (100) is fitted with a secondary locking fastener (600) through a lock hole (102) at its rear end. The secondary locking fastener (600) is a sheet-like structure. One end of the secondary locking fastener (600) has a U-shaped cutout in the middle, and two fixing protrusions (601) are provided on both sides near the U-shaped cutout. The other end has a fixing plate (602). The plug-in tube (202) has a locking groove (2021) on its outer circumference. The U-shaped cutout is adapted to the locking groove (2021). The locking groove (2021), the lock hole (102), and the secondary locking fastener (600) cooperate to limit and fix the plastic shell (100) and the elbow shield shell (200) to each other.

3. The waterproof wire end connector according to claim 2, characterized in that, The number of the cable cavity (203), the conductor cavity (101), the plug tube (202), and the secondary locking element (600) are all two.

4. The waterproof wire end connector according to claim 3, characterized in that, The lock hole (102) matches the secondary locking fastener (600), including two first holes (1021) on the left and right sides of the plastic shell (100) and four second holes (1022) arranged in pairs on the upper and lower sides of the plastic shell (100); the fixing plate (602) is fixed in the first hole (1021) and the fixing protrusion (601) is fixed in the second hole (1022).

5. The waterproof wire end connector according to claim 3, characterized in that, The opening (204) exposes the internal cavities of the two plug-in cylinders (202), and a dumbbell-shaped protrusion (205) is provided in the middle of the exposed internal cavity. The opening (204) and the dumbbell-shaped protrusion (205) together fix the insulating back cover (700); the metal back cover (800) is fixed to the insulating back cover (700) by riveting.

6. The waterproof wire end connector according to claim 5, characterized in that, The outer side of the plug tube (202) and the side wall of the insulating back cover (700) are respectively provided with waterproof grooves (206) in the circumferential direction, and the sealing ring (502) is matched and installed in the waterproof grooves (206).

7. The waterproof wire end connector according to claim 4, characterized in that, The upper end of the plastic shell (100) is also provided with a baffle (103) for limiting the elbow shield shell (200).

8. The waterproof wire end connector according to claim 7, characterized in that, Limiting grooves (104) are respectively provided on the bottom inner side of the baffle (103) and the bottom side wall of the second hole (1022) provided below the plastic shell (100); limiting barbs (207) are provided at the corresponding connection between the elbow shield shell (200) and the limiting groove (104) of the plastic shell (100), and the limiting barbs (207) and the limiting groove (104) are engaged to form a limiting lock.

9. The waterproof wire end connector according to claim 1, characterized in that, The elbow shield (200) extends to the cable assembly (400) outlet end at the tail end and is provided with an elliptical connecting part (208). The waterproof plug (503) is installed inside the elliptical connecting part (208), and the waterproof cover (504) is snapped and fixed to the outside of the elliptical connecting part (208).

10. The waterproof wire connector according to any one of claims 1-9, characterized in that, The cable cavity (203) is matched with the cable assembly (400), which includes a cable (401), a T-tube (402) and a crimping tube (403) crimped onto the cable (401), and the cable (401) is reinforced by secondary riveting on both sides of the outer plastic shell (100).

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