Waterproof integrated Type-C connector with seamless shell

Abstract

The utility model discloses a waterproof integrated Type-C connector with a seamless shell. The waterproof integrated Type-C connector comprises an insulating body, a terminal group and a shielding shell, the insulating body is vertically arranged and comprises a base and a tongue plate which integrally extends upwards from the base; the terminal group is arranged on the insulating body, and contact parts of the terminal group are respectively exposed out of the two surfaces of the tongue plate; the shielding shell is coated outside the insulating body; the terminal group is integrally embedded, molded and fixed on the insulating body; the shielding shell is an integrated die-casting seamless shell, and the outer wall of the base and the inner wall of the lower end of the shielding shell are tightly matched and fixed in a sealed mode. The shielding shell is an integrated die-casting seamless shell, the thickness of the shielding shell is guaranteed, the structural strength is good, a traditional structure formed by assembling an inner shell and an outer shell in a matched mode is replaced, therefore, the number of parts is reduced, the product structure is simplified, production and manufacturing of products are easier, the product yield is high, cost is lower, and the shielding shell is worthy of application and popularization.

Description

Technical Field

[0001] The utility model relates to the technology of the field of electrical connectors, in particular to a seamless shell waterproof integrated Type-C connector. Background Art

[0002] Type-C is a USB interface standard that is smaller than 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 four pairs of TX / RX breakout lines, two pairs of USB D+ / D-, one SBU pair, two CC lines, four VBUS lines, and four ground lines.

[0003] The current Type-C connector's main structure includes an insulating body, a terminal assembly, and a shielding shell. The insulating body includes a base and a tongue extending forward from the base. The terminal assembly is mounted on the insulating body and has multiple contact portions and multiple soldering portions. The contact portions are exposed on the upper and lower surfaces of the tongue, and the soldering portions extend outside the base. The shielding shell covers the insulating body.

[0004] In the prior art, to achieve waterproofing for Type-C connectors, their shielding shells typically consist of an inner shell and an outer shell. The inner shell is seamless and formed by stretching, while the outer shell is stamped. Since the stretched inner shell is relatively thin, structurally weak, and easily deformed, an outer shell is required to strengthen it. Furthermore, to facilitate external mounting and fixing, the shielding shells of these Type-C connectors have many parts, making production complex. Furthermore, the yield rate of the stretched inner shell is relatively low, resulting in high costs. Therefore, improvements to the current Type-C connector are necessary. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies in the prior art, and its main purpose is to provide a seamless, waterproof, integrated Type-C connector, which can effectively solve the problems of the existing Type-C connector's shielding shell having many parts, difficult production, and high cost.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A seamless waterproof integrated Type-C connector comprises an insulating body, a terminal group and a shielding shell; the insulating body is arranged vertically, and comprises a base and a tongue plate extending upward from the base; the terminal group is arranged on the insulating body, and each contact portion of the terminal group is exposed on both surfaces of the tongue plate, and each welding portion of the terminal group extends out of the base; the shielding shell is covered on the insulating body; the terminal group is integrally inlaid and fixed to the insulating body; the shielding shell is an integral die-cast seamless shell, the outer wall of the base is tightly matched with the lower inner wall of the shielding shell and sealed, and the upper outer wall of the shielding shell is protruded with two convex rings, which are arranged at intervals in front and back, and a fixing groove is formed between the two convex rings, and a waterproof ring is embedded in the fixing groove, and the waterproof ring protrudes from the outer surfaces of the two convex rings.

[0008] As a preferred solution, the terminal group has six terminals, which are arranged side by side and spaced apart, wherein the contact portions of three terminals are exposed on one surface of the tongue plate, and the contact portions of the other three terminals are exposed on the other surface of the tongue plate.

[0009] As a preferred solution, the welding portions of the six terminals extend out of the bottom of the base in a side-by-side manner and extend horizontally backward out of the base.

[0010] As a preferred solution, the inner wall of the lower end of the shielding shell is recessed with an interlocking groove, and the outer peripheral side of the base is convexly provided with an interlocking portion. The base is inserted into the lower end of the shielding shell from bottom to top, and the interlocking portion is tightly fitted and fixed in the interlocking groove.

[0011] As a preferred solution, a limiting groove is concavely provided in the engaging groove, and a limiting portion is convexly provided on the engaging portion. The limiting portion is inserted into the limiting groove from bottom to top and is tightly fitted and fixed.

[0012] As a preferred solution, two first fixing legs are integrally extended horizontally forward from the front bottom side of the shielding shell, and the two first fixing legs are symmetrically arranged on the left and right so as to fit and fix with the external circuit board.

[0013] As a preferred solution, second fixing legs are vertically extended downward from both the left and right sides of the bottom of the shielding shell so as to be inserted and fixed to the fixing holes on the external circuit board.

[0014] As a preferred solution, the waterproof ring is made of silicone material, and the waterproof ring is formed and fixed in the fixing groove, which is easy to manufacture and has better sealing performance.

[0015] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0016] By using an integrated die-cast seamless shell for the shielding shell, its thickness is guaranteed and the structural strength is good, replacing the traditional structure of inner shell and outer shell assembly, thereby reducing the number of parts, simplifying the product structure, and making the product production easier, with a high product yield and lower cost, it is worthy of promotion and use.

[0017] In order to more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of an assembly perspective view of a preferred embodiment of the present utility model;

[0019] Figure 2 This is a schematic three-dimensional assembly diagram of a preferred embodiment of the present invention from another angle;

[0020] Figure 3 This is an exploded view of a preferred embodiment of the present utility model;

[0021] Figure 4 This is an exploded view from another angle of the preferred embodiment of the present utility model;

[0022] Figure 5 It is a cross-sectional view of a preferred embodiment of the present utility model.

[0023] Description of the accompanying drawings:

[0024] 10. Insulation body 11. Base

[0025] 111. Fitting portion 112. Limiting portion

[0026] 12. Tongue plate 20. Terminal group

[0027] 21. Terminal 201, contact portion

[0028] 202, welding part 30, shielding shell

[0029] 31. Projection ring 32. Fitting groove

[0030] 33. Limiting groove 34. First fixed foot

[0031] 35. Second fixed foot 301, fixed groove

[0032] 302, semicircular notch 40, waterproof ring. DETAILED DESCRIPTION

[0033] Please refer to Figures 1 to 5 , which shows 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 .

[0034] The insulating body 10 is vertically arranged and includes a base 11 and a tongue plate 12 integrally extending upward from the base 11 .

[0035] The terminal assembly 20 is mounted on the insulating body 10. Each contact portion 201 of the terminal assembly 20 exposes both surfaces of the tongue plate 12, and each soldering portion 202 of the terminal assembly 20 extends outside the base 11. Furthermore, the terminal assembly 20 is integrally fixed to the insulating body 10 by insert molding. In this embodiment, the terminal assembly 20 includes six terminals 21, which are arranged side by side and spaced apart. The contact portions 201 of three terminals 21 expose one surface of the tongue plate 12, while the contact portions 201 of the other three terminals 21 expose the other surface of the tongue plate 12. The soldering portions 202 of the six terminals 21 extend horizontally and rearwardly from the base 11, allowing for soldering and connection with an external circuit board.

[0036] The shielding shell 30, which wraps around the insulating body 10, is a one-piece, die-cast, seamless shell. The outer wall of the base 11 tightly fits and seals against the lower inner wall of the shielding shell 30. Two raised rings 31 are positioned on the upper outer wall of the shielding shell 30, spaced apart from each other. A fixing groove 301 is formed between the two raised rings 31. A waterproof ring 40 is embedded in the fixing groove 301, protruding from the outer surfaces of the two raised rings 31. In this embodiment, the tongue plate 12 overhangs the upper inner wall of the shielding shell 30, with the front end of the tongue plate 12 extending upward from the shielding shell 30. A recessed engagement groove 32 is formed on the lower inner wall of the shielding shell 30. The outer peripheral side of the base 11 is provided with an engagement portion 111. The base 11 is inserted into the lower inner wall of the shielding shell 30 from the bottom up, with the engagement portion 111 tightly fitting into the engagement groove 32, resulting in a simple structure and a secure and reliable connection. In addition, a limiting groove 33 is recessed in the interlocking groove 32, and a limiting portion 112 is convexly provided on the interlocking portion 111. The limiting portion 112 is inserted from the bottom to the top of the limiting groove 33 and is tightly fitted and fixed to prevent the insulating body 10 from moving upward relative to the shielding shell 30, making the combination more stable. In addition, two first fixing feet 34 are integrally extended horizontally forward from the front side of the bottom of the shielding shell 30. The two first fixing feet 34 are symmetrically arranged on the left and right sides so as to fit and fix with the external circuit board, and the front ends of the two first fixing feet 34 are each provided with a semicircular notch 302 for limiting installation. At the same time, second fixing feet 35 are vertically extended downward on both the left and right sides of the bottom of the shielding shell 30 so as to be inserted and fixed with the fixing holes on the external circuit board. In addition, the waterproof ring 40 is made of silicone and is molded and fixed in the fixing groove 301, which is easy to manufacture and has better sealing performance.

[0037] The manufacturing and assembly process of this embodiment is described in detail as follows:

[0038] First, the terminal block 20 is stamped and formed in one step, and the shielding shell 30 is die-cast. Next, the terminal block 20 is placed in an injection mold to form the insulating body 10. Finally, the insulating body 10 is installed from bottom to top into the shielding shell 30. Alternatively, the terminal block 20 and the shielding shell 30 can be placed in an injection mold simultaneously to form the insulating body 10. This eliminates the need for subsequent assembly of the insulating body 10, simplifies the process, and improves waterproof sealing.

[0039] The design focus of the utility model is that the shielding shell adopts an integrated die-cast seamless shell, the thickness of which is guaranteed and the structural strength is good, replacing the traditional structure of inner shell and outer shell assembly, thereby reducing the number of parts, simplifying the product structure, and making the product production easier, with a high product yield and lower cost, which is worthy of promotion and use.

[0040] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A seamless, waterproof, integrated Type-C connector, comprising an insulating body, a terminal assembly, and a shielding shell. The insulating body is vertically disposed and includes a base and a tongue extending upwardly from the base. The terminal assembly is disposed on the insulating body, with contact portions of the terminal assembly exposed on both surfaces of the tongue, and welding portions of the terminal assembly extending beyond the base. The shielding shell is encased within the insulating body. The invention is characterized in that: The terminal group is integrally inlaid and fixed on the insulating body; the shielding shell is an integral die-cast seamless shell, the outer wall of the base is tightly matched and sealed with the inner wall of the lower end of the shielding shell, and two convex rings are protruded from the outer wall of the upper end of the shielding shell, and the two convex rings are arranged at intervals in front and back, and a fixing groove is formed between the two convex rings, and a waterproof ring is embedded in the fixing groove, and the waterproof ring protrudes from the outer surface of the two convex rings.

2. The seamless housing waterproof integrated Type-C connector according to claim 1, characterized in that: The terminal group has six terminals, which are arranged side by side and spaced apart. The contact portions of three terminals are exposed on one surface of the tongue plate, and the contact portions of the other three terminals are exposed on the other surface of the tongue plate.

3. The seamless housing waterproof integrated Type-C connector according to claim 2, characterized in that: The welding portions of the six terminals extend out of the bottom of the base in a side-by-side manner and extend horizontally and rearward out of the base.

4. The seamless housing waterproof integrated Type-C connector according to claim 1, characterized in that: The inner wall of the lower end of the shielding shell is concavely provided with an embedding groove, and the outer peripheral side of the base is convexly provided with an embedding portion. The base is inserted into the lower end of the shielding shell from bottom to top, and the embedding portion is tightly matched and fixed with the embedding groove.

5. The seamless housing waterproof integrated Type-C connector according to claim 4, characterized in that: A limiting groove is concavely provided in the engaging groove, and a limiting portion is convexly provided on the engaging portion. The limiting portion is inserted into the limiting groove from bottom to top and is tightly fitted and fixed.

6. The seamless housing waterproof integrated Type-C connector according to claim 1, characterized in that: Two first fixing legs are integrally extended forward and horizontally from the front side of the bottom of the shielding shell, and the two first fixing legs are symmetrically arranged on the left and right.

7. The seamless housing waterproof integrated Type-C connector according to claim 1, characterized in that: Second fixing legs are vertically extended downward from both left and right sides of the bottom of the shielding shell.

8. The seamless housing waterproof integrated Type-C connector according to claim 1, characterized in that: The waterproof ring is made of silicone material and is formed and fixed in the fixing groove.

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