Waterproof female connector

Abstract

The utility model discloses a waterproof female connector, which comprises a female plastic shell, a male plastic shell and a silica gel ring for sealing the female plastic shell and the male plastic shell, the two ends of the female plastic shell and the two ends of the male plastic shell are respectively provided with a waterproof assembly used for preventing water from entering the female plastic shell and the male plastic shell. According to the utility model, the outer cambered surface of the male plastic shell inserted outside the female plastic shell is provided with the silica gel ring through the silica gel injection molding technology; the sealing performance between the female plastic shell and the male plastic shell is guaranteed through the silica gel ring, so that an external water source is prevented from entering the female plastic shell and the male plastic shell, and meanwhile, waterproof assemblies are arranged at the two ends of the female plastic shell and the two ends of the male plastic shell and located outside the coaxial cable. The dryness in the female plastic shell and the male plastic shell is guaranteed through the waterproof assembly, and normal use of the equipment is further guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of automotive connector technology, specifically a waterproof female connector. Background Technology

[0002] Since the establishment of the DIN72594-1 standard, SMBA (FAKRA) connectors have been used in the automotive communication field. Initially used in radios, FAKRA connectors are now widely used in automotive cameras. When assembled with cables such as RG74 and RTK031, they are suitable for signal transmission in automotive navigation, reversing cameras, and other applications. As environmental requirements have become more stringent, FAKRA connectors have faced the need to achieve waterproofing, but standard FAKRA connectors do not possess this feature.

[0003] A search revealed that prior art, under publication number CN207925772U, discloses a waterproof FAKRA socket connector, comprising a socket body with a socket, one end of which is a male insertion end and the other end a wiring end; an outer conductor is disposed within the socket, and an elastic contact is disposed within the outer conductor, with an insulator passing through the elastic contact, and an inner conductor passing through the insulator; a sealing component extends from the outer conductor toward the male insertion end for contact with the male insertion outer conductor, and the sealing component is disposed at the end of the elastic contact facing the male insertion end. This utility model is applicable to ordinary standard FAKRA plugs and has strong applicability and waterproof performance.

[0004] However, existing connectors use silicone injection molding in plastic shells, and many products use O-rings for waterproofing. The O-ring method is simple in structure but has poor waterproof performance. At the same time, water can enter the connector through the cable and damage the internal components, greatly reducing the waterproof performance. Therefore, a waterproof female connector is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a waterproof female connector, which ensures the sealing of the connection between the female and male plastic shells by setting a silicone ring, and waterproof components are set at both ends of the female and male plastic shells to prevent water from entering the interior of the female and male plastic shells through the coaxial cable, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A waterproof female connector includes a female plastic shell and a male plastic shell, and also includes a silicone ring for sealing between the female plastic shell and the male plastic shell. A coaxial cable is provided through the interior of both the female plastic shell and the male plastic shell.

[0008] The silicone ring is injection molded onto the outer arc surface of the female plastic shell and the male plastic shell through a silicone injection molding process, and the silicone ring is interference-fitted to the male plastic shell;

[0009] The female and male plastic shells are also equipped with waterproof components at both ends to prevent water from entering the interior of the female and male plastic shells.

[0010] Preferably, the waterproof component includes silicone sleeves, which are respectively embedded in the inner walls of the female plastic shell and the male plastic shell at both ends. The outer walls of the two sets of silicone sleeves are respectively press-fitted to the inner walls of the female plastic shell and the male plastic shell. The inner walls of the two sets of silicone sleeves are respectively press-fitted to the outer walls of the coaxial cables that pass through the interior of the female plastic shell and the male plastic shell.

[0011] Both ends of the female and male plastic shells, located outside the silicone sleeve, are also equipped with fixing modules for securing the silicone sleeve.

[0012] Preferably, the fixing module includes a fixing cap, the outer arc surface of the fixing cap is symmetrically provided with a guide groove, and the outer arc surfaces of the female plastic shell and the male plastic shell are respectively symmetrically provided with guide blocks, the guide blocks being inserted into the inside of the guide groove.

[0013] Preferably, the outer arc surface of the fixing cap is symmetrically provided with through slots between the two sets of guide slots, and the outer arc surfaces at both ends of the female plastic shell and the male plastic shell are symmetrically provided with protrusions between the two sets of guide blocks, and the protrusions are respectively engaged in the interior of the two sets of through slots.

[0014] Preferably, the female plastic shell has a slot on its side wall near the male plastic shell, and the outer side wall of the male plastic shell has a buckle that engages with the slot.

[0015] Preferably, both the female and male plastic shells have an outer conductor inside. The outer surface of the outer conductor is provided with a snap-fit ​​assembly for snapping and fixing the outer conductor inside the female and male plastic shells, respectively. The outer conductor has a connecting assembly for connecting the two sets of coaxial cables inside.

[0016] Preferably, the snap-fit ​​assembly includes a sleeve and a telescopic buckle. The sleeve is respectively disposed outside the outer conductor. The inner walls of the female plastic shell and the male plastic shell are both provided with inner slots. The telescopic buckle is snapped onto the outside of the sleeve, and the telescopic buckle is also snapped into the inside of the inner slot.

[0017] Preferably, the connecting assembly includes an insulator, which is respectively disposed on the inner wall of the adjacent ends of the two sets of outer conductors. The insulator also contains an inner conductor, which is respectively connected to the adjacent ends of the two sets of coaxial cables.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This invention features a silicone ring injection-molded onto the outer arc surface of the male plastic shell, which is inserted into the female plastic shell. This silicone ring ensures a tight seal between the male and female plastic shells, preventing external water from entering their interiors. Additionally, waterproof components are installed at both ends of the female and male plastic shells outside the coaxial cable, ensuring the dryness of their interiors and further guaranteeing the normal operation of the equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram showing the connection structure of the female plastic shell and the male plastic shell of this utility model;

[0021] Figure 2 This is a schematic diagram of the separated structure of the female plastic shell and the male plastic shell of this utility model;

[0022] Figure 3 This is a schematic diagram of the overall cross-sectional front view of this utility model;

[0023] Figure 4 This is a schematic diagram of the disassembled structure of the waterproof component of this utility model;

[0024] Figure 5 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0025] Figure 6 This is a schematic diagram of the disassembled structure of the telescopic buckle of this utility model.

[0026] In the diagram: 1. Female plastic shell; 2. Male plastic shell; 3. Coaxial cable; 4. Silicone sleeve; 5. Fixing cap; 6. Silicone ring; 7. Sleeve; 8. Telescopic buckle; 9. Outer conductor; 10. Insulator; 11. Inner conductor; 12. Inner groove; 13. Groove; 14. Buckle; 15. Protrusion; 16. Through groove; 17. Guide groove; 18. Guide block. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1-6 This utility model provides a technical solution:

[0029] A waterproof female connector includes a female plastic shell 1 and a male plastic shell 2, and also includes a silicone ring 6 for sealing between the female plastic shell 1 and the male plastic shell 2. A coaxial cable 3 is provided through the interior of both the female plastic shell 1 and the male plastic shell 2.

[0030] The silicone ring 6 is injection molded onto the outer arc surface of the female plastic shell 1 and the male plastic shell 2 through a silicone injection molding process, and the silicone ring 6 and the male plastic shell 2 are interference-fitted.

[0031] Both ends of the female plastic shell 1 and the male plastic shell 2 are respectively provided with waterproof components to prevent water from entering the interior of the female plastic shell 1 and the male plastic shell 2.

[0032] A silicone ring 6 is injection molded onto the outer arc surface of the female plastic shell 1 and the male plastic shell 2 using a silicone injection molding process. The silicone ring 6 ensures the airtightness between the female plastic shell 1 and the male plastic shell 2, thereby preventing external water from entering the interior of the female plastic shell 1 and the male plastic shell 2 through the gap between them and causing damage to the internal components.

[0033] The waterproof component includes silicone sleeves 4, which are respectively embedded in the inner walls of the female plastic shell 1 and the male plastic shell 2 at both ends. The outer walls of the two sets of silicone sleeves 4 are respectively press-fitted to the inner walls of the female plastic shell 1 and the male plastic shell 2. The inner walls of the two sets of silicone sleeves 4 are respectively press-fitted to the outer walls of the coaxial cable 3 that runs through the inside of the female plastic shell 1 and the male plastic shell 2.

[0034] Both ends of the female plastic shell 1 and the male plastic shell 2 are located outside the silicone sleeve 4 and are also provided with fixing modules for fixing the silicone sleeve 4.

[0035] Meanwhile, silicone sleeves 4 are respectively embedded in the inner walls of both ends of the female plastic shell 1 and the male plastic shell 2. The outer walls of the silicone sleeves 4 are respectively press-fitted to the inner walls of the female plastic shell 1 and the male plastic shell 2, and the inner walls of the two sets of silicone sleeves 4 are respectively press-fitted to the outer arc surfaces of the coaxial cables 3 that pass through the interior of the female plastic shell 1 and the male plastic shell 2. This is to fill the gap between the coaxial cables 3 and the inner walls of the female plastic shell 1 and the male plastic shell 2 through the silicone sleeves 4, so as to prevent external water from entering the interior of the female plastic shell 1 and the male plastic shell 2 through the gap between the coaxial cables 3 and the female plastic shell 1 and the male plastic shell 2, and causing damage to the internal components.

[0036] The fixing module includes a fixing cap 5. The outer arc surface of the fixing cap 5 is symmetrically provided with a guide groove 17. The outer arc surfaces of the female plastic shell 1 and the male plastic shell 2 are respectively symmetrically provided with guide blocks 18, and the guide blocks 18 are inserted into the inside of the guide groove 17.

[0037] The outer arc surface of the fixing cap 5 is symmetrically provided with through slots 16 between the two sets of guide slots 17. The outer arc surfaces at both ends of the female plastic shell 1 and the male plastic shell 2 are symmetrically provided with protrusions 15 between the two sets of guide blocks 18. The protrusions 15 are respectively engaged in the interior of the two sets of through slots 16.

[0038] Furthermore, fixing caps 5 are snapped onto the exterior of both ends of the female plastic shell 1 and the male plastic shell 2. Through slots 16 symmetrically opened on the outer arc surface of the fixing caps 5 are snapped onto the protrusions 15 on the outer arc surfaces of both ends of the female plastic shell 1 and the male plastic shell 2. At the same time, guide blocks 18 symmetrically arranged on the outer arc surfaces of both ends of the female plastic shell 1 and the male plastic shell 2 are inserted into the guide slots 17 opened on the outer arc surface of the fixing caps 5. The guide blocks 18 are inserted into the guide slots 17 to determine the direction of the fixing caps 5, so that the protrusions 15 can be snapped into the through slots 16, thus achieving the snap-fit ​​installation of the fixing caps 5.

[0039] The female plastic shell 1 has a slot 13 on its side wall near the male plastic shell 2, and the male plastic shell 2 has a buckle 14 on its outer side wall. The buckle 14 engages with the slot 13. By having a slot 13 on the side wall of the female plastic shell 1 near the male plastic shell 2 and a buckle 14 on the outer side wall of the male plastic shell 2, and by having the buckle 14 engage with the slot 13, the female plastic shell 1 and the male plastic shell 2 are further engaged inside the slot 13 to secure them together.

[0040] Both the female plastic shell 1 and the male plastic shell 2 have an outer conductor 9 inside. The outer side of the outer conductor 9 is located inside the female plastic shell 1 and the male plastic shell 2, and a snap-fit ​​assembly is provided for snapping and fixing the outer conductor 9. The outer conductor 9 has a connecting assembly for connecting the two sets of coaxial cables 3 inside. The snap-fit ​​assembly includes a sleeve 7 and a telescopic buckle 8. The sleeve 7 is located outside the outer conductor 9. The inner wall of both the female plastic shell 1 and the male plastic shell 2 has an inner slot 12. The telescopic buckle 8 is snapped onto the outside of the sleeve 7 and is also snapped into the inner slot 12. The connecting assembly includes an insulator 10. The insulator 10 is located on the inner wall of the two sets of outer conductors 9 at their adjacent ends. The insulator 10 also has an inner conductor 11 inside, which is connected to the two sets of coaxial cables 3 at their adjacent ends.

[0041] Finally, inner slots 12 are respectively provided inside the female plastic shell 1 and the male plastic shell 2, and telescopic buckles 8 are respectively engaged inside the inner slots 12. The telescopic buckles 8 are also engaged with the sleeves 7. The sleeves 7 are provided with outer conductors 9. The telescopic buckles 8 are used to ensure that the outer conductors 9 are fixed inside the female plastic shell 1 and the male plastic shell 2 without displacement, thereby ensuring the connection between the coaxial cables 3 inside the outer conductors 9 and ensuring the normal use of the equipment.

[0042] Working principle: The telescopic buckle 8 is set to engage with the inner groove 12 of the inner wall of the female plastic shell 1 and the male plastic shell 2 respectively. The telescopic buckle 8 engages with the sleeve 7 so as to ensure that the outer conductor 9 inside the sleeve 7 is fixed inside the female plastic shell 1 and the male plastic shell 2 without displacement, thereby ensuring the stability of the connection between the two sets of coaxial cables 3.

[0043] Insert the end of the male plastic shell 2 away from the silicone sleeve 4 into the end of the female plastic shell 1 away from the silicone sleeve 4, so that the buckle 14 is engaged in the inside of the slot 13, thereby making the silicone ring 6 interference fit with the inner wall of the male plastic shell 2 to ensure the sealing between the female plastic shell 1 and the male plastic shell 2.

[0044] Silicone sleeves 4 are also provided on the inner walls of both ends of the female plastic shell 1 and the male plastic shell 2, which are located outside the coaxial cable 3. The outer walls of the silicone sleeves 4 are respectively press-fitted to the inner walls of both ends of the female plastic shell 1 and the male plastic shell 2, and the inner walls of the silicone sleeves 4 are respectively press-fitted to the outer arc surface of the coaxial cable 3. This is to prevent external water from entering the interior of the female plastic shell 1 and the male plastic shell 2 through the gap between the coaxial cable 3 and the female plastic shell 1 and the male plastic shell 2. The fixing caps 5 are respectively snapped onto both ends of the female plastic shell 1 and the male plastic shell 2 to fix the silicone sleeves 4, ensuring that external water cannot enter the interior of the female plastic shell 1 and the male plastic shell 2 through the coaxial cable 3 and cause damage to the internal components.

[0045] 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.

Claims

1. A waterproof female connector, characterized in that: It includes a female plastic shell (1) and a male plastic shell (2), and also includes a silicone ring (6) for sealing between the female plastic shell (1) and the male plastic shell (2). A coaxial cable (3) is provided through the interior of both the female plastic shell (1) and the male plastic shell (2). The silicone ring (6) is injection molded onto the outer arc surface of the female plastic shell (1) and the male plastic shell (2) through a silicone injection molding process, and the silicone ring (6) and the male plastic shell (2) are interference-fitted. The two ends of the female plastic shell (1) and the male plastic shell (2) are respectively provided with waterproof components to prevent water from entering the interior of the female plastic shell (1) and the male plastic shell (2); The waterproof component includes a silicone sleeve (4), which is respectively embedded on the inner walls of the two ends of the female plastic shell (1) and the male plastic shell (2). The outer walls of the two sets of silicone sleeves (4) are respectively press-fitted to the inner walls of the female plastic shell (1) and the male plastic shell (2). The inner walls of the two sets of silicone sleeves (4) are respectively press-fitted to the outer walls of the coaxial cable (3) that runs through the inside of the female plastic shell (1) and the male plastic shell (2). The female plastic shell (1) and the male plastic shell (2) are provided with fixing modules for fixing the silicone sleeve (4) at both ends outside the silicone sleeve (4); the fixing module includes a fixing cap (5), the outer arc surface of the fixing cap (5) is symmetrically provided with guide grooves (17), the outer arc surfaces of the female plastic shell (1) and the male plastic shell (2) are respectively symmetrically provided with guide blocks (18), the guide blocks (18) are inserted into the inside of the guide grooves (17); the outer arc surface of the fixing cap (5) is located in the two sets of guide grooves (17). 7) A through groove (16) is symmetrically provided between them. The outer arc surfaces of the two ends of the female plastic shell (1) and the male plastic shell (2) are also symmetrically provided with protrusions (15) between the two sets of guide blocks (18). The protrusions (15) are respectively engaged in the interior of the two sets of through grooves (16). A slot (13) is provided on the side wall of the female plastic shell (1) near the male plastic shell (2). A buckle (14) is provided on the outer side wall of the male plastic shell (2). The buckle (14) is engaged with the slot (13). The female plastic shell (1) is symmetrically provided with through grooves (16) between them. Both the female plastic shell (1) and the male plastic shell (2) have an outer conductor (9) inside. The outer conductor (9) is located inside the female plastic shell (1) and the male plastic shell (2). Both shells have snap-fit ​​components for snapping and fixing the outer conductor (9). The outer conductor (9) has a connecting component for connecting two sets of coaxial cables (3) inside. The snap-fit ​​component includes a sleeve (7) and a telescopic buckle (8). The sleeve (7) is located outside the outer conductor (9). (1) Both the inner walls of the plastic outer shell (2) and the sleeve (7) are provided with inner slots (12). The sleeve (7) is attached to the outside with telescopic buckles (8). The telescopic buckles (8) are also attached to the inside of the inner slots (12). The connecting component includes an insulator (10). The insulator (10) is respectively set on the inner wall of the two sets of outer conductors (9) at their close ends. The insulator (10) is also provided with an inner conductor (11). The inner conductor (11) is connected to the two sets of coaxial cables (3) at their close ends.

Images