USB Type-C waterproof female seat with V-shaped groove

Abstract

The utility model discloses a USB Type-C waterproof female seat with a V-shaped groove. The USB Type-C waterproof female seat comprises an insulating body, a terminal group and a shielding shell, the insulating body comprises a base, a tongue plate and a rear seat, and a dispensing groove is formed between the rear seat and the base; the insulating body is covered with the shielding shell, the dispensing groove is filled with waterproof glue to form a sealing element, the sealing element and the terminals of the terminal group are fixed together in an embedded forming mode, and the sealing element and the inner circumferential side wall of the rear end of the shielding shell are combined in a sealed forming mode; and the peripheral side surface of the base is tightly matched with the inner peripheral side wall of the rear end of the shielding shell. The V-shaped groove is formed in the side face of the periphery of the base in a concave mode, the V-shaped groove is located on the front side of the dispensing groove, the deformation space for thermal expansion and cold contraction can be provided through the V-shaped groove, the thermal expansion and cold contraction problem of bonding between the interior of the insulation body and a sealing piece in cold and hot impact can be effectively solved, and it is guaranteed that the waterproof grade of a female base product is kept in an excellent state.

Description

Technical Field

[0001] This utility model relates to the field of electrical connectors, and in particular to a waterproof USB Type-C female connector with a V-groove. Background Technology

[0002] Type-C is a USB interface standard that is smaller than both Type-A and Type-B. It can be used in both PCs (host devices) and external devices (slave devices, such as mobile phones). USB Type-C has 4 pairs of TX / RX pins, 2 pairs of USB D+ / D- pins, 1 pair of SBU pins, 2 CC pins, 4 VBUS pins, and 4 ground pins.

[0003] The current USB Type-C waterproof female connector mainly consists of an insulating body, a terminal group, and a shielding shell. The insulating body includes a base, a tongue plate, and a rear seat. The tongue plate extends forward from the base, and the rear seat is separate from the base and located behind the base, forming a dotted groove between the rear seat and the base. The terminal group is embedded and fixed to the insulating body. The terminal group has multiple contact parts and multiple solder parts. The multiple contact parts are exposed on both surfaces of the tongue plate, and the multiple solder parts pass through the dotted groove and are exposed at the rear end of the rear seat. The shielding shell covers the insulating body.

[0004] Currently, high-end waterproof USB Type-C female connectors typically use an adhesive dispensing method. Waterproof adhesive penetrates into the dispensing groove of the connector, and after high-temperature curing, forms a seal to prevent penetration between the soldered ends of the terminals and the contact points, thus achieving waterproofing. However, a thermal shock test in connector product testing can partially damage the adhesion between the seal and the insulating body, leading to a reduction in the waterproof rating. Therefore, it is necessary to improve current USB Type-C waterproof female connectors. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology, and its main objective is to provide a USB Type-C waterproof female connector with a V-groove, which can effectively solve the problem that existing USB Type-C waterproof female connectors are difficult to pass thermal shock tests.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A waterproof USB Type-C connector with a V-groove includes an insulating body, a terminal group, and a shielding shell. The insulating body includes a base, a tongue, and a rear seat. The tongue extends forward from the base, and the rear seat is separate from the base and located behind the base, forming a dotted groove between the rear seat and the base. The terminal group is embedded and fixed to the insulating body, and the terminal group has multiple contact portions and multiple solder portions. The multiple contact portions are exposed on both surfaces of the tongue, and the multiple solder portions pass through the dotted groove and are exposed at the rear end of the rear seat. The shielding shell covers the insulating body, and the dotted groove is filled with waterproof adhesive to form a sealing element. The sealing element is embedded and fixed together with each terminal of the terminal group, and the sealing element is sealed and formed with the inner peripheral sidewall of the rear end of the shielding shell. The outer peripheral side of the base fits tightly with the inner peripheral sidewall of the rear end of the shielding shell, and the outer peripheral side of the base is recessed with a V-groove, which is annular and surrounds the outer peripheral side of the base.

[0008] As a preferred embodiment, the V-grooves are arranged in two spaced-ahead positions to provide more deformation space and better withstand thermal shock tests.

[0009] As a preferred embodiment, the insulating body is installed vertically or horizontally.

[0010] As a preferred embodiment, the shielding housing includes an EMI sleeve, an inner shell, and an outer shell. The EMI sleeve is fitted over the rear end of the tongue plate and the base, and the EMI sleeve covers the V-groove. The inner shell is a seamless stretched shell, fitted over the rear end of the EMI sleeve and welded to the EMI sleeve. The aforementioned sealing element is sealed and formed with the inner circumferential side wall of the rear end of the inner shell. The outer shell covers the inner shell, resulting in a simple structure, easy manufacturing, and good waterproof performance.

[0011] As a preferred embodiment, a waterproof ring is fitted at the front end of the inner shell, which abuts against the front end face of the outer shell and protrudes from the outer peripheral side of the outer shell to achieve a better waterproof effect.

[0012] As a preferred embodiment, the outer shell is a stamped shell, and the outer shell is fixed to the inner shell by spot welding, so that the combination of the outer shell and the inner shell is stable and reliable.

[0013] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0014] By recessing a V-shaped groove on the outer periphery of the base, which is located in front of the dispensing groove, the V-shaped groove can provide deformation space for thermal expansion and contraction, effectively solving the problem of thermal expansion and contraction between the insulation body and the seal during thermal shock, and ensuring that the waterproof rating of the female base product remains excellent.

[0015] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a three-dimensional assembly diagram of a preferred embodiment of the present invention;

[0017] Figure 2 This is an exploded view of a preferred embodiment of the present invention;

[0018] Figure 3 This is a cross-sectional view of a preferred embodiment of the present invention.

[0019] Explanation of reference numerals in the attached diagram:

[0020] 10. Insulating body 11. Base

[0021] 12. Tongue plate 13. Rear seat

[0022] 14. Seal 101, Adhesive Dispensing Groove

[0023] 102. V-groove; 103. Snap groove

[0024] 20. Terminal group; 21. Contact portion

[0025] 22. Welding section; 30. Shielding shell

[0026] 31. EMI casing 32. Inner casing

[0027] 33. Outer shell 34. Waterproof ring

[0028] 301, Fastener; 302, Fixing foot. Detailed Implementation

[0029] Please refer to Figures 1 to 3 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including an insulating body 10, a terminal group 20, and a shielding shell 30.

[0030] The insulating body 10 includes a base 11, a tongue plate 12, and a rear seat 13. The tongue plate 12 extends forward from the base 11, and the rear seat 13 is separate from the base 11 and located behind the base 11. A dotted adhesive groove 101 is formed between the rear seat 13 and the base 11. The insulating body 10 can be installed vertically or horizontally. In this embodiment, the insulating body 10 is installed vertically, but this is not a limitation. Furthermore, the outer peripheral side of the base 11 is recessed with a V-shaped groove 102. The V-shaped groove 102 is annular and surrounds the outer peripheral side of the base 11. Two V-shaped grooves 102 are arranged at intervals to provide more deformation space and better withstand thermal shock tests. The number of V-shaped grooves 102 is not limited. Additionally, the outer peripheral side of the base 11 is recessed with a fastening groove 103, which is located between the two V-shaped grooves 102.

[0031] The terminal assembly 20 is embedded and fixed on the insulating body 10. The terminal assembly 20 has multiple contact portions 21 and multiple solder portions 22. The multiple contact portions 21 are exposed on both surfaces of the tongue plate 12, and the multiple solder portions 22 pass through the rear adhesive groove 101 and are exposed at the rear end of the rear seat 13. In this embodiment, the multiple solder portions 22 are arranged in two rows and extend horizontally.

[0032] The shielding shell 30 covers the insulating body 10. The adhesive groove 101 is filled with waterproof adhesive to form a sealing element 14. The sealing element 14 is embedded and fixed together with each terminal of the terminal group 20. The sealing element 14 is also sealed and formed with the inner peripheral side wall of the rear end of the shielding shell 30. The outer peripheral side of the base 11 is tightly fitted with the inner peripheral side wall of the rear end of the shielding shell 30. Specifically, the shielding shell 30 includes an EMI sleeve 31, an inner shell 32, and an outer shell 33. The EMI sleeve 31 is fitted around the rear end of the tongue plate 12 and the base 11, and the EMI sleeve 31 covers the V-shaped groove 102. The EMI sleeve 31 is a seamless stretched shell. The rear end of the EMI sleeve 31 is punched to form a fastener 301, which engages with the fastener groove 103 for snap-fit ​​fixation. The inner housing 32 is a seamless stretched shell, fitted onto the rear end of the EMI housing 31 and welded to it. The aforementioned sealing member 14 is sealed and molded to the inner peripheral sidewall of the rear end of the inner housing 32. The outer housing 33 covers the inner housing 32. A waterproof ring 34 is fitted onto the front end of the inner housing 32, abutting against the front end face of the outer housing 33 and protruding from its outer peripheral side. Furthermore, the outer housing 33 is a stamped shell, spot-welded to the inner housing 32, and has multiple fixing feet 302 extending rearward from its rear end for insertion and fixing to an external circuit board.

[0033] The manufacturing and assembly process of this embodiment is described in detail below:

[0034] During manufacturing, firstly, the terminal assembly 20 is stamped out. Then, the terminal assembly 20 is placed into the injection mold and injection molded to form the main structure of the insulating body 10. Next, the EMI sleeve 31 is fitted onto the rear end of the tongue plate 12 and the base 11 from front to back. Then, the inner shell 32 is fitted onto the rear end of the EMI sleeve 31 and welded to the EMI sleeve 31. Next, the outer shell 33 is wrapped around the inner shell 32 and welded to the inner shell 32. Finally, the glue dispensing groove 101 is filled with waterproof glue. After the glue cures, the seal 14 is formed.

[0035] The key design feature of this invention is that a V-shaped groove is recessed on the outer periphery of the base. The V-shaped groove is located in front of the dispensing groove. The V-shaped groove provides space for thermal expansion and contraction, which can effectively solve the problem of thermal expansion and contraction between the insulation body and the sealing element in the "thermal shock" and ensure that the waterproof rating of the female base product remains excellent.

[0036] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A USB Type-C waterproof female connector with a V-groove, comprising an insulating body, a terminal group, and a shielding shell; the insulating body includes a base, a tongue plate, and a rear seat, the tongue plate extending forward from the base, the rear seat being separate from the base and located behind the base, and a dotted groove forming between the rear seat and the base; the terminal group is embedded and fixed to the insulating body, the terminal group having multiple contact portions and multiple solder portions, the multiple contact portions respectively exposing the two surfaces of the tongue plate, the multiple solder portions passing through the dotted groove and exposing the rear end of the rear seat; the shielding shell covers the insulating body, the dotted groove is filled with waterproof adhesive to form a sealing element, the sealing element is embedded and fixed together with each terminal of the terminal group, and the sealing element is sealed and formed with the inner peripheral sidewall of the rear end of the shielding shell; characterized in that: The outer peripheral side of the base fits tightly with the inner peripheral side wall of the rear end of the shielding shell, and the outer peripheral side of the base is recessed with a V-shaped groove, which is annular and surrounds the outer peripheral side of the base.

2. The USB Type-C waterproof female connector with V-groove according to claim 1, characterized in that: The V-shaped grooves are two arranged at intervals.

3. The USB Type-C waterproof female connector with V-groove according to claim 1, characterized in that: The insulating body is installed vertically or horizontally.

4. The USB Type-C waterproof female connector with V-groove according to claim 1, characterized in that: The shielding shell includes an EMI housing, an inner housing, and an outer housing. The EMI housing is fitted around the rear end of the tongue plate and the base, and the EMI housing covers the V-groove. The inner housing is a seamless stretched shell, fitted around the rear end of the EMI housing and welded to the EMI housing. The aforementioned sealing element is sealed and formed with the inner circumferential side wall of the rear end of the inner housing. The outer housing covers the outer side of the inner housing.

5. The USB Type-C waterproof female connector with V-groove according to claim 4, characterized in that: The inner shell is fitted with a waterproof ring at its front end, which abuts against the front end face of the outer shell and protrudes from the outer peripheral side of the outer shell.

6. The USB Type-C waterproof female connector with V-groove according to claim 4, characterized in that: The outer shell is a stamped shell, and the outer shell is fixed to the inner shell by spot welding.

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