USB Type-C waterproof female socket

Abstract

The utility model discloses a USB Type-C waterproof female seat. The USB Type-C waterproof female seat comprises an insulating body, a terminal group and a shell, the insulating body comprises a base and a tongue plate integrally extending from the base; the terminal group is formed by blanking the same piece of hardware material and comprises a first terminal PIN, two second terminal PINs and a false terminal PIN; and the false terminal PIN comprises a fixing part, a third contact part and a fourth contact part which are sequentially and integrally formed, bent and connected. The front end of the third contact part of the fourth contact part is bent backwards in the reverse direction and extends out, a traditional forming mode of bending upwards in the lateral direction is replaced, forming of the false terminal PIN is not affected by the distance between the two first contact parts, and therefore the false terminal PIN, the first terminal PIN and the two second terminal PINs can be formed on the same hardware material in a blanking mode. The mold can be easily realized without using two sets of molds, so that the product manufacturing process is simplified, the production cost is greatly reduced, and the dimensional accuracy can be well ensured.

Description

Technical Field

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

[0002] USB Type-C is a USB interface standard with a smaller size than Type-A and Type-B. It can be used in both PCs (host devices) and external devices (slave devices, such as mobile phones) [1]. USB Type-C has 4 pairs of TX / RX lines, 2 pairs of USBD+ / D-, a pair of SBU, 2 CCs, 4 VBUS and 4 ground lines. On October 4, 2022, local time, the European Parliament passed a bill with an overwhelming majority. The bill stipulates that from the end of 2024, all new portable smart devices must use the USB Type-C charging interface; from 2026, USB Type-C will also become the standard interface for laptop chargers. On October 25, 2022, Apple confirmed that it will comply with EU requirements and all smartphones will use the USB-C charging port from 2024. From 2024, USB-C will become the universal standard for electronic devices in the EU. USB-C will serve as a universal port in the EU, allowing consumers to use any USB-C charger to charge any brand of device.

[0003] The USB Type-C receptacle is a form of USB Type-C interface. Its main structure includes an insulating body, a terminal assembly, and a shell. The insulating body includes a base and a tongue extending integrally from the base. The terminal assembly is fixed to the insulating body by insert molding. The shell is covered by the insulating body and has an insertion cavity in which the tongue is suspended. In the prior art, the terminal assembly includes a first terminal PIN, two second terminal PINs, and a dummy terminal PIN. The first terminal PIN has two first contact portions spaced apart from each other. The two second terminal PINs each have a second contact portion, the two second contact portions are respectively located outside the two first contact portions. The dummy terminal PIN is located between the two first contact portions and has a third contact portion and a fourth contact portion. The fourth contact portion is bent upward and extends from one side of the third contact portion. Because the distance between the two first contact portions is relatively small, insufficient material is available for forming the dummy terminal PIN. Consequently, the dummy terminal PIN, the first terminal PIN, and the two second terminal PINs cannot be formed from the same piece of metal material, making it impossible to use a mold. Therefore, two separate pieces of metal material must be cut and formed, and two sets of molds are required. This results in a complex manufacturing process, high production costs, and difficulty ensuring dimensional accuracy. Therefore, it is necessary to develop a solution to this problem. Utility Model Content

[0004] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide a USB Type-C waterproof female socket, which can effectively solve the problems of the existing USB Type-C female socket such as complex manufacturing process, high production cost, and difficulty in ensuring dimensional accuracy.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A USB Type-C waterproof motherboard includes an insulating body, a terminal group and a shell; the insulating body includes a base and a tongue extending integrally from the base; the terminal group is fixed to the insulating body by inlay molding; the shell is covered with the insulating body, the shell has an insertion cavity, and the tongue is suspended in the insertion cavity; the terminal group is formed by cutting from the same piece of hardware material, and includes a first terminal PIN, two second terminal PINs and a dummy terminal PIN; the first terminal PIN has two first contact portions spaced apart from each other on the left and right, and the two first contact portions are exposed on the surface of the tongue plate; the two second terminal PINs are arranged on the left and right, and the two second terminal PINs each have a second contact portion, and the two second contact portions are respectively located outside the two first contact portions and exposed on the surface of the tongue plate; the dummy terminal PIN is located between the two first contact portions, and the dummy terminal PIN includes a fixed portion, a third contact portion and a fourth contact portion that are integrally molded and bent in sequence, the fixed portion is buried in the tongue plate, and the fourth contact portion is bent backward and extends from the front end of the third contact portion, and the fourth contact portion and the third contact portion are respectively exposed on the upper and lower surfaces of the tongue plate.

[0007] As a preferred solution, the third contact portion is bent downward relative to the fixing portion and extends horizontally, the third contact portion exposes the lower surface of the tongue plate, and the rear end of the fourth contact portion abuts against the front end surface of the fixing portion and exposes the upper surface of the tongue plate.

[0008] As a preferred solution, a first slot is formed on the third contact portion, and the first slot is buried in the insulating body.

[0009] As a preferred solution, a second slot is formed on the fourth contact portion, and the second slot is buried in the insulating body.

[0010] As a preferred solution, the shell includes a plastic shell and a metal shell. The plastic shell is covered on the outside of the insulating body. The aforementioned insertion cavity is located in the plastic shell. The metal shell is fitted and fixed on the rear end of the plastic shell. The metal shell extends with a fixing foot.

[0011] As a preferred solution, a waterproof ring is provided on the front end of the plastic housing to achieve a sealed connection during plug-in connection.

[0012] As a preferred solution, a glue dispensing groove is concavely provided on the rear end surface of the plastic shell, the base is located in the glue dispensing groove, and the glue dispensing groove is filled with glue to form a seal to achieve a sealing and fixing effect.

[0013] As a preferred solution, two hook members are fixedly embedded in the insulating body and are located on both sides of the terminal group, so as to ensure a stable connection with the external connector.

[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] By bending the fourth contact portion backward and extending it from the front end of the third contact portion, the traditional sideways upward bending forming method is replaced. As a result, the forming of the dummy terminal PIN is not affected by the distance between the two first contact portions. As a result, the dummy terminal PIN, the first terminal PIN, and the two second terminal PINs can be formed by cutting from the same piece of hardware material. The mold can be easily realized without using two sets of molds, which simplifies the product manufacturing process, greatly reduces production costs, and can also well ensure dimensional accuracy.

[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. Insulation body 11. Base

[0024] 12. Tongue plate 20. Terminal group

[0025] 21. First terminal PIN 211. First contact portion

[0026] 212, first welding foot 22, second terminal PIN

[0027] 221, second contact portion 222, second welding leg

[0028] 23. PIN 231. Fixed part

[0029] 232, third contact portion 233, fourth contact portion

[0030] 201, first slot 202, second slot

[0031] 30. Shell 31. Plastic shell

[0032] 32. Metal shell 321. Fixed foot

[0033] 33. Waterproof ring 34. Seal

[0034] 301, insertion cavity 302, annular groove

[0035] 303, glue dispensing groove 304, buckle

[0036] 305, button hole 40, hook piece. DETAILED DESCRIPTION

[0037] 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 set 20 and a housing 30 .

[0038] The insulating body 10 includes a base 11 and a tongue 12 integrally extending from the base 11 .

[0039] The terminal assembly 20 is fixed to the insulating body 10 by insert molding. The terminal assembly 20 is formed by blanking from a single piece of hardware material and includes a first terminal PIN 21, two second terminals PIN 22, and a dummy terminal PIN 23. The first terminal PIN 21 has two first contact portions 211 spaced apart from each other on the left and right sides, and the two first contact portions 211 are exposed on the surface of the tongue plate 12. The two second terminals PIN 22 are arranged on the left and right sides, and each second terminal PIN 22 has a second contact portion 221, which is respectively located outside the two first contact portions 211 and exposed on the surface of the tongue plate 12. The dummy terminal PIN 23 is located between the two first contact portions 211 and includes a fixed portion 231, a third contact portion 232, and a fourth contact portion 233, which are integrally formed and bent in sequence. The fixed portion 231 is embedded in the tongue plate 12, and the fourth contact portion 233 is bent and extended backward from the front end of the third contact portion 232. The fourth contact portion 233 and the third contact portion 232 are respectively exposed on the upper and lower surfaces of the tongue plate 12. In this embodiment, each first terminal PIN 21 has a first solder leg 212 that extends rearward from the base 11 and vertically downward. Each second terminal PIN 22 has a second solder leg 222 that extends rearward from the base 11 and vertically downward. Furthermore, the third contact portion 232 is bent downward relative to the fixing portion 231 and extends horizontally, exposing the lower surface of the tongue plate 12. The rear end of the fourth contact portion 233 abuts the front end of the fixing portion 231 and exposes the upper surface of the tongue plate 12, providing a stable structure. Furthermore, the third contact portion 232 has a first slot 201 that is embedded in the insulating body 10, ensuring a secure connection between the third contact portion 232 and the insulating body 10. Furthermore, the fourth contact portion 233 has a second slot 202 that is embedded in the insulating body 10, ensuring a secure connection between the fourth contact portion 233 and the insulating body 10.

[0040] The housing 30 is encased around the insulating body 10 and defines an insertion cavity 301 within which the tongue 12 is suspended. Specifically, the housing 30 comprises a plastic shell 31 and a metal shell 32. The plastic shell 31 encases the insulating body 10, with the insertion cavity 301 located within the plastic shell 31. The metal shell 32 is secured to the rear end of the plastic shell 31 and has extending fixing legs 321. In this embodiment, a waterproof ring 33 is provided at the front end of the plastic shell 31. Furthermore, an annular groove 302 is formed on the outer peripheral side of the front end of the plastic shell 31, into which the waterproof ring 33 is securely inserted. In addition, the rear end face of the plastic shell 31 is recessed with a glue dispensing groove 303, which is connected to the insertion cavity 301. The base 11 is located in the glue dispensing groove 303, and the tongue plate 12 passes through the glue dispensing groove 303 from back to front and extends into the insertion cavity 301. The front end of the tongue plate 12 extends forward from the insertion cavity 301, and the glue dispensing groove 303 is filled with glue to form a seal 34 to seal the gap between the base 11 and the plastic shell 31 to achieve a waterproof effect. In addition, buckles 304 are protruding from both side surfaces of the rear end of the plastic shell 31. The metal shell 32 is in an inverted U-shape, and buckle holes 305 are opened on both sides of the metal shell 32. The metal shell 32 is inserted from top to bottom onto the rear end of the plastic shell 31. After being inserted into place, the buckles 304 and the buckle holes 305 cooperate to fix them together, thereby firmly combining the metal shell 32 and the plastic shell 31. Fixing feet 321 extend downward from both sides of the metal shell 32 to ensure stable installation with the external circuit board.

[0041] Two hook members 40 are fixedly embedded in the insulating body 10 . The two hook members 40 are respectively located on two sides of the terminal assembly 20 .

[0042] The assembly process of this embodiment is described in detail as follows:

[0043] During assembly, first, the terminal group 20 and the two hook parts 40 are stamped out, then the terminal group 20 and the two hook parts 40 are placed in an injection mold to injection mold the insulating body 10 to form a semi-finished product, then the semi-finished product is inserted into the plastic shell 31 from back to front through the glue dispensing groove 303, so that the base 11 is located in the glue dispensing groove 303 and the tongue plate 12 is suspended in the insertion cavity 301, then, glue is filled into the glue dispensing groove 303 to form a seal 34, the seal 34 firmly fixes the insulating body 10 and the plastic shell 31 together and realizes a sealed combination, then, the waterproof ring 33 is put on the front end of the plastic shell 31, and the metal shell 32 is put on the rear end of the plastic shell 31.

[0044] The design focus of the present invention is that the fourth contact portion is bent backward and extended in the opposite direction from the front end of the third contact portion, replacing the traditional sideways upward bending forming method, so that the forming of the dummy terminal PIN is not affected by the distance between the two first contact portions, so that the dummy terminal PIN, the first terminal PIN and the two second terminal PINs can be formed by cutting the same piece of hardware material, the mold can be easily realized, and there is no need to use two sets of molds, so that the product manufacturing process is simplified, the production cost is greatly reduced, and the dimensional accuracy can also be well guaranteed.

[0045] 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 USB Type-C waterproof female connector, comprising an insulating body, a terminal assembly, and a housing; the insulating body comprising a base and a tongue extending integrally from the base; the terminal assembly being fixedly secured to the insulating body by insert molding; the housing encasing the insulating body, the housing having an insertion cavity, the tongue suspended within the insertion cavity; and characterized in that: The terminal group is formed by cutting from the same piece of hardware material, and includes a first terminal PIN, two second terminal PINs and a dummy terminal PIN; the first terminal PIN has two first contact portions spaced apart on the left and right, and the two first contact portions are exposed on the surface of the tongue plate; the two second terminal PINs are arranged on the left and right, and both second terminal PINs have a second contact portion, and the two second contact portions are respectively located on the outside of the two first contact portions and exposed on the surface of the tongue plate; the dummy terminal PIN is located between the two first contact portions, and includes a fixing portion, a third contact portion and a fourth contact portion that are sequentially integrally formed and bent and connected, the fixing portion is buried in the tongue plate, and the fourth contact portion is bent backward and extended in the opposite direction at the front end of the third contact portion, and the fourth contact portion and the third contact portion are respectively exposed on the upper and lower surfaces of the tongue plate.

2. The USB Type-C waterproof socket according to claim 1, characterized in that: The third contact portion is bent downward relative to the fixing portion and extends horizontally, the third contact portion is exposed on the lower surface of the tongue plate, and the rear end of the fourth contact portion is against the front end surface of the fixing portion and is exposed on the upper surface of the tongue plate.

3. The USB Type-C waterproof socket according to claim 1, characterized in that: A first slot is formed on the third contact portion and is buried in the insulating body.

4. The USB Type-C waterproof socket according to claim 1, characterized in that: A second slot is formed on the fourth contact portion and is buried in the insulating body.

5. The USB Type-C waterproof socket according to claim 1, characterized in that: The shell includes a plastic shell and a metal shell. The plastic shell is covered on the outside of the insulating body. The insertion cavity is located in the plastic shell. The metal shell is fitted and fixed on the rear end of the plastic shell. The metal shell extends with a fixing foot.

6. The USB Type-C waterproof socket according to claim 5, characterized in that: The front end of the plastic shell is covered with a waterproof ring.

7. The USB Type-C waterproof socket according to claim 5, characterized in that: A glue dispensing groove is concavely provided on the rear end surface of the plastic shell, the base is located in the glue dispensing groove, and the glue dispensing groove is filled with glue to form a sealing member.

8. The USB Type-C waterproof socket according to claim 1, characterized in that: Two hook members are embedded and fixed in the insulating body, and the two hook members are respectively located on both sides of the terminal group.

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