Waterproof type-c connector

Abstract

The utility model discloses a waterproof type-c connector, which comprises a terminal, a plastic seat and a metal shell, welding legs of the terminal extend out of the rear end face of the plastic seat, a plug-in space is formed between the metal shell and a tongue plate at the front end of the plastic seat, and a glue groove is formed between the rear end of the metal shell and the rear end face of the plastic seat. Waterproof glue is poured into the glue groove to fix and form a waterproof glue block, and the waterproof glue block also wraps the front end part of the welding leg of the terminal; a plastic partition strip used for preventing the waterproof glue from overflowing to the rear end portion of the weld leg is further integrally formed at the front end portion of the weld leg of the terminal in an injection molding mode and located on the rear end face of the plastic base and the rear side of the glue groove, and the rear end of the waterproof glue block is further attached to and fixedly pasted to the front end face of the plastic partition strip. The plastic partition strip can prevent waterproof glue from overflowing to the rear end part of the weld leg to pollute an electroplated layer at the rear end part of the weld leg, ensures the product quality, does not need to clean the waterproof glue overflowing to the rear end part of the weld leg later, and is beneficial to improving the production efficiency and reducing the cost.

Description

Technical fields:

[0001] This utility model relates to the field of connector product technology, and specifically to a waterproof Type-C connector. Background technology:

[0002] Type-C is significantly smaller than both Type-A and Type-B, making it a slim and compact new type of USB interface. Furthermore, Type-C is an interface type that can be used with both PCs (host devices) and external devices (slave devices, such as mobile phones), offering good practicality. Type-C also supports higher power transmission, up to 100W, with the fastest data transfer speeds reaching 10Gbps, supporting a wider range of high-power devices. Finally, Type-C is the latest USB interface form factor standard; this interface has no reversible orientation, allowing for easy plugging and unplugging, thus increasing application flexibility. Type-C connectors come in various specifications, including 6-pin, 12-pin, 16-pin, and 24-pin designs.

[0003] Chinese utility model patent CN218182567U discloses a Type-C-16P waterproof female connector, which includes an insulating body, multiple metal terminals integrally formed with the insulating body, and a metal shell enclosing the insulating body. The insulating body includes a main body fixed inside the metal shell. The front end of the main body extends forward to form a tongue that does not contact the inner wall of the front part of the metal shell. Contact parts of the metal terminals are distributed on the upper and lower surfaces of the tongue. The rear end of the main body is connected to an extension located inside the rear end of the metal shell and engaged and fixed with the metal shell. The rear part of the inner wall of the metal shell is sealed to the extension by an adhesive layer that basically encloses the extension. The welded part of the metal terminal extends through the extension, which improves the waterproof performance of the connector.

[0004] However, the aforementioned Type-C-16P waterproof female connector has at least two shortcomings:

[0005] 1. The adhesive layer is directly formed on the rear end of the insulating body and contacts the inner wall of the metal shell, and wraps the front end of the solder feet of the metal terminal. However, when the waterproof adhesive is poured to form the adhesive layer, the waterproof adhesive overflows to the rear end of the solder feet of the metal terminal, which contaminates the electroplating layer of the solder feet. This will affect the conductivity in the later stage, affect the product quality, or require the adhesive to be cleaned later, which increases the production steps and is not conducive to improving production efficiency and reducing costs.

[0006] 2. The back of the insulating body is stepped and uneven. When the metal shell is fitted onto the insulating body, a gap will be formed between the back of the insulating body and the inner wall of the metal shell. As a result, when the adhesive layer is formed later, the adhesive will overflow forward through the gap, resulting in adhesive leakage. This cannot guarantee product quality.

[0007] In view of the above, the inventors propose the following technical solution. Utility model content:

[0008] The purpose of this invention is to overcome the shortcomings of the prior art and provide a waterproof Type-C connector.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The waterproof Type-C connector includes a terminal, a plastic base integrally formed with the terminal, and a metal shell installed outside the plastic base. The solder feet of the terminal extend beyond the rear end face of the plastic base, and an interlocking space is formed between the metal shell and the tongue plate at the front end of the plastic base. An adhesive groove is formed between the rear end of the metal shell and the rear end face of the plastic base, and the adhesive groove is filled with waterproof adhesive to fix and form a waterproof adhesive block. The waterproof adhesive block also covers the front end portion of the solder feet of the terminal. The front end portion of the solder feet of the terminal is also integrally injection molded with a plastic partition strip for preventing waterproof adhesive from overflowing to the rear end portion of the solder feet. The plastic partition strip is located behind the rear end face of the plastic base and the adhesive groove. The rear end of the waterproof adhesive block is also attached and glued to the front end face of the plastic partition strip.

[0010] Furthermore, in the above technical solution, the front end face of the plastic partition strip is provided with several positioning grooves, and the rear end of the waterproof adhesive block is also embedded in the positioning grooves.

[0011] Furthermore, in the above technical solution, the two ends of the plastic partition strip protrude beyond the two sides of the rear end of the plastic base, so that the rear end face of the metal shell is in contact with the front end face of the plastic partition strip.

[0012] Furthermore, in the above technical solution, a flange protruding outward is formed on the outer periphery of the rear side of the plastic base, and the outer surface of the flange is fitted and assembled with the inner wall of the rear end of the metal shell.

[0013] Furthermore, in the above technical solution, the metal shell is a seamless shell formed by stretching.

[0014] Furthermore, in the above technical solution, the front end of the metal shell is bent from the inside to the outside to form a retaining edge, and a shielding shell is also provided on the outside of the metal shell. An annular groove is formed between the front edge of the shielding shell and the retaining edge, and a waterproof ring is provided in the annular groove. The waterproof ring protrudes beyond the outer surface of the shielding shell.

[0015] Furthermore, in the above technical solution, the shielding shell and the metal shell are fixed together by laser welding, and several positioning feet are provided on the outer side of the lower end of the shielding shell.

[0016] Furthermore, in the above technical solution, the rear end of the tongue plate is also fitted with an EMC shell. The metal shell and the EMC shell are fixed by laser welding, and the shielding shell is provided with several clearance holes. The welding points formed between the metal shell and the EMC shell are exposed in the clearance holes.

[0017] Furthermore, in the above technical solution, a stepped groove is provided at the connection between the plastic seat and the rear end of the tongue plate, and a sleeve is provided on the rear side of the EMC shell. The sleeve is fitted and fixed in the stepped groove and fastened by interference fit.

[0018] Furthermore, in the above technical solution, the part where the plastic seat connects to the rear end of the tongue plate is also provided with several limiting grooves and a clearance groove located next to the limiting groove, and a buckle is provided in the clearance groove; a positioning piece and a buckle plate located next to the positioning piece are provided on the rear side of the EMC shell, and the buckle plate is provided with buckle holes; the positioning piece is embedded in the limiting groove, the buckle plate is pressed into the clearance groove, and the buckle hole of the buckle plate is engaged and fixed with the buckle.

[0019] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0020] 1. Because this utility model also integrally injection molds a plastic partition strip at the front end of the terminal's solder foot, this plastic partition strip effectively isolates the waterproof adhesive during the process of pouring waterproof adhesive into the glue tank to fix and form a waterproof adhesive block. This prevents the waterproof adhesive from overflowing to the rear end of the solder foot and contaminating the electroplating layer there, ensuring conductivity and product quality. Furthermore, it eliminates the need for subsequent cleaning of excess adhesive at the rear end of the solder foot, avoiding additional production steps and improving production efficiency while reducing costs. In addition, the rear end of the waterproof adhesive block is also bonded and fixed to the front end of the plastic partition strip, further ensuring a more stable assembly structure between the metal shell and the plastic base, resulting in higher product quality.

[0021] 2. A flange protruding outward is formed on the outer periphery of the rear side of the plastic base. The outer surface of the flange fits snugly against the inner wall of the rear end of the metal shell, so that there is no gap between the plastic base and the rear end of the metal shell. This prevents the waterproof glue from overflowing to the front end of the plastic base, effectively preventing glue leakage and ensuring product quality. Attached image description:

[0022] Figure 1 This is a perspective view of the present invention;

[0023] Figure 2 This is a perspective view of the present invention from another angle;

[0024] Figure 3 This is an exploded perspective view of the present invention;

[0025] Figure 4This is a perspective view of the present invention before the formation of the waterproof adhesive block;

[0026] Figure 5 This is a cross-sectional view of the present invention;

[0027] Figure 6 This is a diagram of the internal structure of this utility model;

[0028] Figure 7 This is an internal structural diagram of another structure of this utility model;

[0029] Figure 8 This is an exploded view of another structure of this utility model. Detailed implementation method:

[0030] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0031] See Figure 1-8 As shown, a waterproof Type-C connector includes a terminal 1, a plastic base 2 integrally formed with the terminal 1, and a metal shell 3 mounted on the outside of the plastic base 2. The solder feet 11 of the terminal 1 extend beyond the rear end face of the plastic base 2, and a mating space 20 is formed between the metal shell 3 and the tongue plate 21 at the front end of the plastic base 2. A glue groove 30 is formed between the rear end of the metal shell 3 and the rear end face of the plastic base 2, and the glue groove 30 is filled with waterproof glue to fix and form a waterproof glue block 4. The waterproof glue block 4 also covers the front end portion of the solder feet 11 of the terminal 1. The above part is the conventional structure of waterproof Type-C connectors in the prior art.

[0032] This invention also makes the following improvements: the front end of the solder foot 11 of the terminal 1 is integrally injection molded with a plastic partition strip 5 to prevent waterproof adhesive from overflowing to the rear end of the solder foot 11. The plastic partition strip 5 is located on the rear end face of the plastic base 2 and the rear side of the glue tank 30. The rear end of the waterproof adhesive block 4 is also attached and glued to the front end face of the plastic partition strip 5. In other words, because this invention integrally injection molds a plastic partition strip 5 on the front end of the solder foot 11 of the terminal 1, during the process of pouring waterproof adhesive into the glue tank 30 to fix and form the waterproof adhesive block 4, the plastic partition strip 5 plays a good role in isolating the waterproof adhesive, that is, preventing the waterproof adhesive from overflowing to the rear end of the solder foot 11 and contaminating the electroplating layer of the rear end of the solder foot 11, ensuring conductivity, ensuring product quality, and eliminating the need for subsequent cleaning of waterproof adhesive overflowing to the rear end of the solder foot 11, avoiding additional production steps, improving production efficiency and reducing costs, thus solving the first technical problem mentioned above. In addition, the rear end of the waterproof adhesive block 4 is also attached and fixed to the front end of the plastic partition strip 5, thereby ensuring a more stable assembly structure between the metal shell 3 and the plastic base 2 and improving product quality.

[0033] The front end of the plastic partition strip 5 is also provided with several positioning grooves 51, and the rear end of the waterproof adhesive block 4 is also embedded in the positioning grooves 51, so that the assembly of the waterproof adhesive block 4 and the plastic partition strip 5 is more stable, which can further improve the stability of the assembly structure of the plastic base 2 and the metal shell 3.

[0034] The two ends of the plastic partition strip 5 protrude beyond the two sides of the rear end of the plastic base 2, so that the rear end face of the metal shell 3 is still in contact with the front end face of the plastic partition strip 5. This can prevent the metal shell 3 from being inserted too far relative to the plastic base 2, and ensure that the metal shell 3 is properly inserted relative to the plastic base 2 when the rear end face of the metal shell 3 is in contact with the front end face of the plastic partition strip 5, thus ensuring the accuracy of the assembly.

[0035] A flange 22 protruding outward is formed on the rear periphery of the plastic base 2. The outer surface of the flange 22 fits snugly against the inner wall of the rear end of the metal shell 3, so that there is no gap between the plastic base 2 and the rear end of the metal shell 3. This prevents the waterproof glue from overflowing to the front end of the plastic base 2, effectively preventing glue leakage and ensuring product quality, thus solving the second technical problem mentioned above.

[0036] The metal shell 3 is a seamless shell formed by stretching, which can improve the waterproof performance of this utility model.

[0037] The front end of the metal shell 3 is bent from the inside to the outside to form a retaining edge 31. A shielding shell 6 is also provided on the outside of the metal shell 3. An annular groove 60 is formed between the front edge of the shielding shell 6 and the retaining edge 31. A waterproof ring 7 is disposed in the annular groove 60. The waterproof ring 7 protrudes beyond the outer surface of the shielding shell 6. The waterproof ring can further improve the waterproof performance of this utility model.

[0038] The shielding shell 6 is fixed to the metal shell 3 by laser welding, and its assembly structure is stable. Several positioning feet 61 are provided on the lower outer side of the shielding shell 6.

[0039] The rear end of the tongue plate 21 is also fitted with an EMC shell 8, which improves the anti-interference capability. The metal shell 3 and the EMC shell 8 are fixed by laser welding, and the shielding shell 6 is provided with several clearance holes 62. The welding points 32 formed between the metal shell 3 and the EMC shell 8 are exposed in the clearance holes 62, so that the metal shell 3 and the shielding shell 6 fit more tightly, thereby ensuring a more stable assembly structure between the two.

[0040] The assembly structure of the EMC shell 8 and the plastic base 2 includes at least the following two types:

[0041] The first type: combination Figure 6As shown, the portion where the plastic base 2 connects to the rear end of the tongue plate is also provided with several limiting grooves 24 and clearance grooves 25 located beside the limiting grooves 24. A buckle 26 is provided in the clearance groove 25. A positioning piece 82 and a buckle plate 83 located beside the positioning piece 82 are provided on the rear side of the EMC shell 8. The buckle plate 83 is provided with buckle holes 831. The positioning piece 82 is embedded in the limiting groove 24, the buckle plate 83 is pressed into the clearance groove 25, and the buckle hole 831 of the buckle plate 83 is engaged and fixed with the buckle 26, thus forming a stable assembly.

[0042] The second type: combination Figure 7-8 As shown, a stepped groove 23 is provided at the part where the plastic base 2 is connected to the rear end of the tongue plate. A sleeve 81 is also provided on the rear side of the EMC shell 8. The sleeve 81 is fitted and fixed in the stepped groove 23 and is fastened by interference fit, which can also form a stable assembly.

[0043] In summary, because this invention integrally injection molds a plastic partition strip 5 at the front end of the solder foot 11 of terminal 1, the plastic partition strip 5 effectively isolates the waterproof adhesive during the process of pouring waterproof adhesive into the glue tank 30 to fix and form the waterproof adhesive block 4. This prevents the waterproof adhesive from overflowing to the rear end of the solder foot 11 and contaminating the electroplating layer thereon, ensuring conductivity and product quality. Furthermore, it eliminates the need for subsequent cleaning of the waterproof adhesive overflowing to the rear end of the solder foot 11, avoiding additional production steps, improving production efficiency, and reducing costs, thus solving the first technical problem mentioned above. In addition, the rear end of the waterproof adhesive block 4 is also bonded and fixed to the front end of the plastic partition strip 5, further ensuring a more stable assembly structure between the metal shell 3 and the plastic base 2, resulting in higher product quality. In addition, a flange 22 protruding outward is formed on the rear periphery of the plastic base 2. The outer surface of the flange 22 fits and is assembled with the inner wall of the rear end of the metal shell 3, so that there is no gap between the plastic base 2 and the rear end of the metal shell 3, thereby preventing the waterproof glue from overflowing to the front end of the plastic base 2, effectively preventing glue leakage, thus ensuring product quality and solving the second technical problem mentioned above.

[0044] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A waterproof Type-C connector, comprising a terminal (1), a plastic base (2) integrally formed with the terminal (1), and a metal shell (3) installed outside the plastic base (2), wherein the solder feet (11) of the terminal (1) extend beyond the rear end face of the plastic base (2), and a mating space (20) is formed between the metal shell (3) and the tongue plate (21) at the front end of the plastic base (2), and an adhesive groove (30) is formed between the rear end of the metal shell (3) and the rear end face of the plastic base (2), and the adhesive groove (30) is filled with waterproof adhesive to fix and form a waterproof adhesive block (4), the waterproof adhesive block (4) also wrapping the front end portion of the solder feet (11) of the terminal (1); Its features are: The front end of the solder foot (11) of the terminal (1) is also integrally injection molded with a plastic partition strip (5) to prevent waterproof glue from overflowing to the rear end of the solder foot (11). The plastic partition strip (5) is located on the rear end face of the plastic base (2) and the rear side of the glue tank (30). The rear end of the waterproof glue block (4) is also attached and glued to the front end face of the plastic partition strip (5).

2. The waterproof Type-C connector according to claim 1, characterized in that: The front end of the plastic partition strip (5) is also provided with several positioning grooves (51), and the rear end of the waterproof adhesive block (4) is also embedded in the positioning grooves (51).

3. A waterproof Type-C connector according to claim 2, characterized in that: The two ends of the plastic partition strip (5) protrude beyond the two sides of the rear end of the plastic base (2), so that the rear end face of the metal shell (3) is in contact with the front end face of the plastic partition strip (5).

4. A waterproof Type-C connector according to any one of claims 1-3, characterized in that: The plastic base (2) has a flange (22) formed on the outer periphery of its rear side, and the outer surface of the flange (22) is fitted and assembled with the inner wall of the rear end of the metal shell (3).

5. A waterproof Type-C connector according to claim 4, characterized in that: The metal shell (3) is a seamless shell formed by stretching.

6. A waterproof Type-C connector according to claim 4, characterized in that: The front end of the metal shell (3) is bent from the inside to the outside to form a retaining edge (31). A shielding shell (6) is also provided on the outside of the metal shell (3). An annular groove (60) is formed between the front edge of the shielding shell (6) and the retaining edge (31). A waterproof ring (7) is provided in the annular groove (60). The waterproof ring (7) protrudes out of the outer surface of the shielding shell (6).

7. A waterproof Type-C connector according to claim 6, characterized in that: The shielding shell (6) is fixed to the metal shell (3) by laser welding, and a number of positioning feet (61) are provided on the outer side of the lower end of the shielding shell (6).

8. A waterproof Type-C connector according to claim 6, characterized in that: The tongue plate (21) is also fitted with an EMC shell (8) at its rear end. The metal shell (3) and the EMC shell (8) are fixed by laser welding. The shielding shell (6) is provided with several clearance holes (62). The welding point (32) formed between the metal shell (3) and the EMC shell (8) is exposed in the clearance hole (62).

9. A waterproof Type-C connector according to claim 8, characterized in that: The plastic base (2) is connected to the rear end of the tongue plate and is provided with a stepped groove (23). The EMC shell (8) is also provided with a sleeve (81) on the rear side. The sleeve (81) is fitted and fixed in the stepped groove (23) and is fastened by interference fit.

10. A waterproof Type-C connector according to claim 8, characterized in that: The plastic base (2) is connected to the rear end of the tongue plate and is provided with several limiting grooves (24) and a clearance groove (25) located next to the limiting groove (24). A buckle (26) is provided in the clearance groove (25). The rear side of the EMC shell (8) is provided with a positioning piece (82) and a buckle plate (83) located next to the positioning piece (82). The buckle plate (83) is provided with a buckle hole (831). The positioning piece (82) is embedded in the limiting groove (24), the buckle plate (83) is pressed into the clearance groove (25), and the buckle hole (831) of the buckle plate (83) is engaged and fixed with the buckle (26).

Images