Waterproof Type-C connector

Abstract

The utility model discloses a waterproof Type-C connector, which comprises a connector body, and the connector body comprises an insulating body, a terminal group and a shielding shell. The insulating body comprises a base and a tongue plate which integrally extends forwards from the base; the terminal group is arranged on the insulating body; the shielding shell is coated outside the insulating body; the waterproof shell comprises a plastic shell, a metal shell and a waterproof ring; the waterproof shell is composed of the plastic shell body, the metal shell body and the waterproof ring, the dispensing groove is formed in the rear end face of the plastic shell body in a matched mode, a traditional structure adopting a seamless shell is replaced, the manufacturing difficulty of the product is lowered, cost is saved, meanwhile, the percent of pass is greatly increased, glue is bonded between the insulation body and the plastic shell body, and the waterproof shell is not prone to falling off. And separation caused by the influence of external environment factors such as thermal expansion and cold contraction is not easy to occur, the waterproof effect is ensured, and convenience is brought to use.

Description

Technical Field

[0001] The utility model relates to the technology of the field of electrical connectors, and in particular to a waterproof 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, in order to achieve the waterproof function of the Type-C connector, its shielding shell generally adopts a seamless shell, and then a waterproof ring is set on the seamless shell, and glue is applied between the seamless shell and the insulating body. Although the Type-C connector of this structure can achieve waterproofness, its seamless shell is generally formed by stretching metal sheet, which is difficult to manufacture, expensive, and has a relatively low pass rate. In addition, because the shielding shell is metal and the insulating body is plastic, the glue bonding between the metal and plastic is easily affected by external environmental factors such as thermal expansion and contraction, causing separation, thus failing to achieve a good waterproof effect. Therefore, it is necessary to improve the current Type-C connector. 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 waterproof Type-C connector that can effectively solve the problems of the existing Type-C connector, such as high manufacturing difficulty, high cost, low pass rate, and poor waterproof effect.

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

[0007] A waterproof Type-C connector includes a connector body, the connector body including an insulating body, a terminal group and a shielding shell; the insulating body includes a base and a tongue plate extending forward from the base; the terminal group is arranged on the insulating body, the terminal group has a plurality of contact portions and a plurality of welding portions, the plurality of contact portions are exposed on the upper and lower surfaces of the tongue plate, and the plurality of welding portions extend out of the base; the shielding shell is covered on the insulating body; and further includes a waterproof shell, which includes a plastic shell, a metal shell and a and a waterproof ring; the plastic shell has a accommodating cavity with an opening facing forward, the rear end face of the plastic shell is recessed with a glue dispensing groove, the glue dispensing groove is connected to the accommodating cavity, the connector body is inserted into the accommodating cavity from back to front through the glue dispensing groove, the glue dispensing groove is filled with glue to form a seal, the seal covers the rear end face of the connector body and seals the gap between the connector body and the plastic shell; the metal shell is fitted and fixed on the rear end of the plastic shell, and the metal shell extends with a fixing foot; the waterproof ring is fitted on the front end of the shielding shell and is located on the front side of the plastic shell.

[0008] As a preferred solution, a fixing column is integrally extended downward from the bottom surface of the plastic housing so as to be mounted and fixed to the external circuit board.

[0009] As a preferred solution, the fixing column is a cylinder, and there are two fixing columns arranged symmetrically on the left and right, which makes the installation and fixation with the external circuit board more stable.

[0010] As a preferred solution, the plurality of welding portions are arranged in parallel to form a row, exposed from the bottom surface of the plastic housing and extending horizontally backward from the rear side of the plastic housing, so as to be fitted and welded to the external circuit board for fixation.

[0011] As a preferred solution, the outer surface of the plastic shell is provided with a recessed groove, the metal shell is in an inverted U shape, the metal shell is embedded in the recessed groove, and the fixing legs extend vertically downward from the bottom surface of the plastic shell to facilitate stable assembly and installation.

[0012] As a preferred solution, buckles are protruding from both sides of the plastic shell, and the buckles are located in the embedding grooves. Correspondingly, buckle holes are opened on both sides of the metal shell, and the buckles are fixed with the buckle holes.

[0013] As a preferred solution, two fixing feet extend downward from both the left and right sides of the metal shell, and the two fixing feet are arranged at intervals in front and back, so that the installation with the external circuit board is more secure.

[0014] 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:

[0015] The waterproof shell of this product is composed of a plastic shell, a metal shell and a waterproof ring, and a glue dispensing groove is concavely provided on the rear end surface of the plastic shell, replacing the traditional seamless shell structure, making the production difficulty of this product lower and saving costs, while also greatly improving the qualified rate. The glue is bonded between the insulating body and the plastic shell, which is not easily separated by external environmental factors such as thermal expansion and contraction, which is conducive to ensuring the waterproof effect and bringing convenience to use.

[0016] 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

[0017] Figure 1 This is a schematic diagram of an assembly perspective view of a preferred embodiment of the present utility model;

[0018] Figure 2 This is a schematic three-dimensional assembly diagram of a preferred embodiment of the present invention from another angle;

[0019] Figure 3 This is an exploded view of a preferred embodiment of the present utility model;

[0020] Figure 4 This is an exploded view from another angle of the preferred embodiment of the present utility model;

[0021] Figure 5 It is a cross-sectional view of a preferred embodiment of the present utility model.

[0022] Description of the accompanying drawings:

[0023] 10. Connector body 11. Insulation body

[0024] 111, base 112, tongue plate

[0025] 12. Terminal group 121. Contact portion

[0026] 122, welding part 13, shielding shell

[0027] 20. Waterproof shell 21. Plastic shell

[0028] 22. Metal shell 23. Waterproof ring

[0029] 24. Sealing element 201, accommodating cavity

[0030] 202, glue dispensing slot 203, fixed foot

[0031] 204, fixed column 205, embedded groove

[0032] 206. Button portion 207. Button hole. DETAILED DESCRIPTION

[0033] Please refer to Figures 1 to 5 As shown, it shows the specific structure of a preferred embodiment of the present invention, including a connector body 10 and a waterproof shell 20.

[0034] The connector body 10 includes an insulating body 11, a terminal group 12, and a shielding shell 13; the insulating body 11 includes a base 111 and a tongue plate 112 extending forward from the base 111; the terminal group 12 is disposed on the insulating body 11 and has a plurality of contact portions 121 and a plurality of soldering portions 122, the plurality of contact portions 121 being exposed on the upper and lower surfaces of the tongue plate 112, respectively, and the plurality of soldering portions 122 extending outside the base 111; the shielding shell 13 is covered outside the insulating body 11.

[0035] In this embodiment, the insulating body 11 is made of a single piece of plastic. The terminal assembly 12 comprises 6 pin terminals, which are formed by stamping. The plurality of soldering portions 122 are arranged in a row, exposed from the bottom surface of the plastic housing 21 and extending horizontally rearward from the rear side of the plastic housing 21 to facilitate soldering and securing to an external circuit board. The shielding shell 13 is a stamped iron shell.

[0036] The waterproof housing 20 includes a plastic shell 21, a metal shell 22 and a waterproof ring 23; the plastic shell 21 has a accommodating cavity 201 with an opening facing forward, and a glue dispensing groove 202 is recessed on the rear end surface of the plastic shell 21. The glue dispensing groove 202 is connected to the accommodating cavity 201. The connector body 10 is inserted into the accommodating cavity 201 from the back to the front through the glue dispensing groove 202. The glue dispensing groove 202 is filled with glue to form a seal 24. The seal 24 covers the rear end surface of the connector body 10 and seals the gap between the connector body 10 and the plastic shell 21; the metal shell 22 is fitted and fixed to the rear end of the plastic shell 21, and the metal shell 22 extends from the metal shell 22 to form a fixing foot 203; the waterproof ring 23 is fitted over the front end of the shielding shell 13 and is located on the front side of the plastic shell 21.

[0037] In this embodiment, the bottom surface of the plastic housing 21 has a fixed post 204 extending downwardly to facilitate mounting and securing the plastic housing 21 to an external circuit board. The fixed post 204 is cylindrical and symmetrically arranged, providing a more secure mounting and securing arrangement. Furthermore, the outer surface of the plastic housing 21 is provided with a recessed groove 205, into which the metal housing 22 is in an inverted U-shape. The metal housing 22 is inserted into the recessed groove 205, and the fixed legs 203 extend vertically downward from the bottom surface of the plastic housing 21, ensuring a secure assembly. Furthermore, the left and right sides of the plastic housing 21 each have a protruding buckle 206, which fits into the recessed groove 205. Correspondingly, the left and right sides of the metal housing 22 each have a buckle hole 207. The buckle 206 and the buckle hole 207 engage and secure the metal housing 22, providing a simple and secure mounting. Furthermore, two fixed legs 203 extend downwardly from each side of the metal housing 22, spaced apart from each other, ensuring a more secure mounting and securing arrangement to the external circuit board. The waterproof ring 23 is made of silicone material and is molded and fixed to the front end of the shielding shell 13 and fixed together with the front end surface of the plastic shell 21 to achieve a better waterproof effect.

[0038] The assembly process of this embodiment is described in detail as follows:

[0039] First, the terminal group 12 is stamped out, and then the terminal group 12 is placed in an injection mold to form the insulating body 11, so that the terminal group 12 and the insulating body 11 are inlaid and fixed together, and then the shielding shell 13 is fitted and fixed on the insulating body 11, so that the connector body 10 is obtained, and then the connector body 10 is inserted into the accommodating cavity 201 from the back to the front through the glue dispensing groove 202, and then the glue dispensing groove 202 is filled with glue, and after the glue solidifies, a seal 24 is formed, so that the seal 24 covers the rear end face of the connector body 10 and seals the gap between the connector body 10 and the plastic shell 21, and then a waterproof ring 23 is set on the front end of the shielding shell 13, and finally, the metal shell 22 is fitted and fixed on the rear end of the plastic shell 21.

[0040] The design focus of this utility model is that the waterproof shell of this product is composed of a plastic shell, a metal shell and a waterproof ring, and a glue dispensing groove is concavely provided on the rear end surface of the plastic shell, replacing the traditional seamless shell structure, which reduces the difficulty of manufacturing this product, saves costs, and greatly improves the qualified rate. The glue is bonded between the insulating body and the plastic shell, which is not easily separated by external environmental factors such as thermal expansion and contraction, which is conducive to ensuring the waterproof effect and bringing convenience to use.

[0041] 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 waterproof Type-C connector, comprising a connector body, the connector body including an insulating body, a terminal assembly, and a shielding shell; the insulating body including a base and a tongue extending forward from the base; the terminal assembly disposed on the insulating body, the terminal assembly having a plurality of contact portions and a plurality of soldering portions, the plurality of contact portions being exposed on the upper and lower surfaces of the tongue, respectively, and the plurality of soldering portions extending outside the base; the shielding shell covering the insulating body; and characterized in that: The invention further comprises a waterproof shell, which comprises a plastic shell, a metal shell and a waterproof ring; the plastic shell has a receiving cavity with an opening facing forward, and a glue dispensing groove is recessed on the rear end face of the plastic shell, the glue dispensing groove is connected to the receiving cavity, the connector body is inserted into the receiving cavity from back to front through the glue dispensing groove, the glue dispensing groove is filled with glue to form a seal, the seal covers the rear end face of the connector body and seals the gap between the connector body and the plastic shell; the metal shell is fitted and fixed on the rear end of the plastic shell, and the metal shell extends with a fixing foot; the waterproof ring is fitted on the front end of the shielding shell and is located on the front side of the plastic shell.

2. The waterproof Type-C connector according to claim 1, wherein: A fixing column is integrally extended downward from the bottom surface of the plastic shell.

3. The waterproof Type-C connector according to claim 2, wherein: The fixing columns are cylindrical, and there are two fixing columns arranged symmetrically on the left and right.

4. The waterproof Type-C connector according to claim 1, wherein: The plurality of welding portions are arranged in parallel to form a row, exposed from the bottom surface of the plastic housing, and horizontally extended backward from the rear side of the plastic housing.

5. The waterproof Type-C connector according to claim 1, wherein: The outer surface of the plastic shell is concavely provided with an embedding groove, and the metal shell is in an inverted U shape. The metal shell is embedded in the embedding groove, and the fixing legs extend vertically downward from the bottom surface of the plastic shell.

6. The waterproof Type-C connector according to claim 5, characterized in that: The left and right sides of the plastic shell are both convexly provided with buckles, and the buckles are located in the embedding grooves. Correspondingly, the left and right sides of the metal shell are both opened with buckle holes, and the buckles are fixed with the buckle holes by buckling.

7. The waterproof Type-C connector according to claim 5, wherein: Two fixing legs extend downward from both the left and right sides of the metal shell, and the two fixing legs are arranged at intervals in front and back.

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