Type-C waterproof connector with high reliability and high production efficiency

Abstract

The utility model discloses a Type-C waterproof connector with high reliability and high production efficiency. The Type-C waterproof connector comprises an insulating body, a terminal group and a shielding shell, the insulating body comprises a base and a tongue plate which extends forwards from the base; the terminal group is embedded, molded and fixed on the insulating body, each contact part of the terminal group is respectively exposed out of the upper surface and the lower surface of the tongue plate, and each welding part of the terminal group extends out of the base; the shielding shell is coated outside the insulating body; an annular groove is concavely formed in the side surface of the periphery of the base; and each terminal of the terminal group passes through the annular groove. The silica gel ring is fixed in the annular groove through injection molding, the overall dimension precision is high, the change of passing through an IR furnace is small, and the shielding shell is subsequently assembled, so that the peripheral side face of the silica gel ring is in sealing fit with the inner peripheral side face of the rear end of the shielding shell, the waterproof performance of the product is more reliable, factors influencing air tightness are few, the yield is higher, meanwhile, injection molding consumes less time, and the production efficiency is improved. And the production efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the connector field technology especially is a kind of high reliability, high production efficiency's Type-C waterproof connector. BACKGROUND

[0002] Type-C has much smaller volume than Type-A and Type-B, and is a new USB interface with thin and light interface. In addition, Type-C is an interface type that can be applied to PC (master device) and external device (slave device, such as mobile phone), and has good practicability. Type-C supports larger power transmission, with maximum of 100W, fastest data transmission speed of 10Gbps, and supports more high-power load devices. Type-C is the latest USB interface standard, and the interface has no distinction between front and back, can be plugged randomly, and is more flexible in application. Type-C connectors have many specifications, including 6Pin, 12Pin, 16Pin and 24Pin structures.

[0003] The main structure of the current Type-C connector includes an insulating body, a terminal set and a shielding shell. The insulating body includes a base and a tongue plate extending forward from the base. The terminal set is fixed by insert molding on the insulating body. Each contact part of the terminal set is exposed on the upper and lower surfaces of the tongue plate. Each welding part of the terminal set extends out of the base. The shielding shell covers the insulating body.

[0004] In order to realize the waterproof function of Type-C connector, the prior art mainly opens a dispensing groove on the base, then dispenses glue in the dispensing groove, and uses glue to cover each terminal and adhere to the inner wall of the shielding shell. However, the amount of glue, the change of glue after passing through IR furnace and the performance difference of different batches of glue in this traditional dispensing process can cause poor air tightness and low sealing reliability of the product. In addition, dispensing operation is very time-consuming and has low production efficiency. Therefore, it is necessary to improve the current Type-C connector. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model provides a high reliability, high production efficiency's Type-C waterproof connector, which can effectively solve the problem of low reliability and low production efficiency of the existing Type-C connector using dispensing to achieve waterproof.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a high reliability, high production efficiency's Type-C waterproof connector, including insulating body, terminal group and shielding shell, the insulating body includes base and the tongue plate that extends to the front on the base, the terminal group inlayed form is fixed on the insulating body, each contact portion of the terminal group exposes the upper and lower surface of tongue plate respectively, each welding portion of the terminal group extends outside the base, the shielding shell is covered in the insulating body, the outer circumferential side of base is recessed with annular groove, each terminal of the terminal group all passes through annular groove, the silica gel ring is fixed with injection molding in the annular groove, the outer circumferential side of silica gel ring protrudes the outer circumferential side of base, and the outer circumferential side of silica gel ring and the rear end inner circumferential side of shielding shell seal cooperation.

[0008] As a preferred scheme, the silica gel ring is formed by liquid injection molding, which is easier to make.

[0009] As a preferred scheme, the outer circumferential side of the silica gel ring is formed with an arc-shaped protrusion, which is in sealing cooperation with the rear end inner circumferential side of the shielding shell, so that the sealing cooperation is better, more stable and reliable.

[0010] As a preferred scheme, the rear end of the base is integrally extended with a rear seat, the height of the rear seat is lower than that of the base, and the annular groove is located at the connection between the rear seat and the base, so that the structure is simple and easy to make.

[0011] As a preferred scheme, the shielding shell comprises an inner shell and an outer shell, the inner shell is a seamless shell, the front end of the inner shell is sleeved with a waterproof ring, the rear end of the inner shell is sleeved outside the base, the silica gel ring is in sealing cooperation with the rear end inner wall of the inner shell, and the outer shell is a stamping shell, which is sleeved outside the inner shell, so that the structure is simple and the overall waterproof performance is good.

[0012] Compared with the prior art, the utility model has obvious advantages and beneficial effects, specifically speaking, according to the above technical scheme, it is known that:

[0013] By first injection molding the silica gel ring in the annular groove, the outer dimension precision is high, the change through the IR furnace is small, and the silica gel ring is in sealing cooperation with the rear end inner circumferential side of the shielding shell in cooperation with the subsequent assembly shielding shell, so that the waterproof performance of the product is more reliable, the factors affecting the air tightness are less, the yield is higher, the injection molding time is less, and the production efficiency is effectively improved.

[0014] To make the structure characteristics and functions of the utility model clearer, the utility model will be described in detail below in combination with the drawings and specific embodiments. DRAWINGS

[0015] Figure 1 It is the assembly three-dimensional schematic diagram of the preferred embodiment of the utility model;

[0016] Figure 2 is another angle assembled three-dimensional view of the preferred embodiment of the present application;

[0017] Figure 3 is an exploded view of the preferred embodiment of the present application;

[0018] Figure 4 is another angle exploded view of the preferred embodiment of the present application;

[0019] Figure 5 is a local assembled view of the preferred embodiment of the present application;

[0020] Figure 6 is a sectional view of the preferred embodiment of the present application;

[0021] Figure 7 is a manufacturing process view of the preferred embodiment of the present application.

[0022] Explanation of the drawings:

[0023] 10, insulating body 11, base

[0024] 12, tongue plate 13, rear seat

[0025] 101, annular groove 20, terminal group

[0026] 21, contact part 22, welding part

[0027] 30, shielding shell 31, inner shell

[0028] 32, outer shell 33, waterproof ring

[0029] 40, silica gel ring 41, arc-shaped protrusion

[0030] 50, material belt. DETAILED DESCRIPTION

[0031] Please refer to Figures 1 to 7 , which shows the specific structure of the preferred embodiment of the present application, including the insulating body 10, the terminal group 20 and the shielding shell 30.

[0032] The insulating body 10 includes a base 11 and a tongue plate 12 extending forwardly from the base 11; the outer peripheral side of the base 11 is recessed with an annular groove 101, the annular groove 101 is fixed with a silica gel ring 40 by injection molding, and the outer peripheral side of the silica gel ring 40 protrudes from the outer peripheral side of the base 11. In this embodiment, the rear end of the base 11 extends integrally rearwardly with a rear seat 13, the height of the rear seat 13 is lower than the height of the base 11, and the annular groove 101 is located at the connection between the rear seat 13 and the base 11. Furthermore, the silica gel ring 40 is formed by liquid injection molding (LIM).

[0033] The terminal group 20 is inlayed and formed to be fixed on the insulating body 10, each contact part 21 of the terminal group 20 is exposed to the upper and lower surfaces of the tongue plate 12, and each welding part 22 of the terminal group 20 is extended out of the base 11. In the embodiment, each terminal of the terminal group 20 passes through the annular groove 101, and the outer peripheral side of each terminal of the terminal group 20 is wrapped by the silica gel ring 40.

[0034] The shielding shell 30 is wrapped outside the insulating body 10, and the outer peripheral side of the silica gel ring 40 is sealingly matched with the inner peripheral side of the rear end of the shielding shell 30. In the embodiment, the outer peripheral side of the silica gel ring 40 is formed with the arc-shaped protrusion 41, which is sealingly matched with the inner peripheral side of the rear end of the shielding shell 30, so as to achieve better waterproof sealing effect. Specifically, the shielding shell 30 comprises the inner shell 31 and the outer shell 32, the inner shell 31 is a seamless shell, the waterproof ring 33 is sleeved on the front end of the inner shell 31, the rear end of the inner shell 31 is sleeved outside the base 11, the silica gel ring 40 is sealingly matched with the inner wall of the rear end of the inner shell 31, and the outer shell 32 is a stamping shell, which is wrapped outside the inner shell 31, so that the structural strength and the waterproof effect are good.

[0035] The manufacturing and assembling process of the embodiment is as follows:

[0036] Firstly, the terminal group 20 is inlayed and formed to be fixed on the insulating body 10 by adopting the twice molding mode, so as to form a semi-finished product; then, the semi-finished product is placed in a silica gel forming mold, liquid silica gel is injected into the annular groove 101 by adopting the liquid injection molding (LIM) mode, so as to form the silica gel ring 40, which can prevent the silica gel ring 40 from falling off during the assembling process, the silica gel ring 40 can be produced in multiple molds by LIM injection molding within 1 minute, compared with the epoxy resin glue baking curing (about 30 minutes) and the silica gel normal temperature curing (24H), the product production efficiency is higher; then, the material belt 50 is removed; then, the inner shell 31 is assembled, so that the silica gel ring 40 is sealingly matched with the inner wall of the rear end of the inner shell 31; finally, the outer shell 32 is assembled.

[0037] The design focus of the utility model lies in that: the silica gel ring is first injection molded in the annular groove, the outer dimension precision is high, the change through the IR furnace is small, and the subsequent assembly shielding shell is matched, so that the outer peripheral side of the silica gel ring is sealingly matched with the inner peripheral side of the rear end of the shielding shell, the waterproof performance of the product is more reliable, the factors affecting the air tightness are few, the yield is higher, the injection molding time is less, and the production efficiency is effectively improved.

[0038] The above merely describes the preferred embodiment of the present application, and is not intended to limit the technical scope of the present application in any way. Any slight modification, equivalent change, and modification made according to the technical essence of the present application shall still fall within the scope of the technical scheme of the present application.

Claims

1. A highly reliable and efficient Type-C waterproof connector, comprising 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 embedded and fixed on the insulating body, with each contact portion of the terminal group protruding from the upper and lower surfaces of the tongue plate, and each solder portion of the terminal group extending beyond the base; the shielding shell covers the insulating body; characterized in that: The base has an annular groove on its outer peripheral side. Each terminal of the terminal group passes through the annular groove. A silicone ring is injection molded and fixed in the annular groove. The outer peripheral side of the silicone ring protrudes from the outer peripheral side of the base. The outer peripheral side of the silicone ring is sealed to the inner peripheral side of the rear end of the shielding shell.

2. The high-reliability, high-production-efficiency Type-C waterproof connector according to claim 1, characterized in that: The silicone ring is formed by liquid injection molding.

3. The high-reliability, high-production-efficiency Type-C waterproof connector according to claim 1, characterized in that: The outer peripheral side of the silicone ring has an arc-shaped protrusion, which is sealed to the inner peripheral side of the rear end of the shielding shell.

4. The high-reliability, high-production-efficiency Type-C waterproof connector according to claim 1, characterized in that: The rear end of the base extends rearward integrally with a rear seat, the height of which is lower than the height of the base, and the annular groove is located at the connection between the rear seat and the base.

5. The high-reliability, high-production-efficiency Type-C waterproof connector according to claim 1, characterized in that: The shielding shell includes an inner shell and an outer shell. The inner shell is a seamless shell with a waterproof ring fitted at the front end and the rear end of the inner shell fitted outside the base. The silicone ring is sealed to the inner wall of the rear end of the inner shell. The outer shell is a stamped shell that covers the inner shell.

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