A USB type-c female socket assembled double-row injection molding connector

Abstract

The utility model relates to connecting equipment technical field, concretely to a kind of USB Type-C female seat assembly type double-row injection molding connector, comprising: upper row terminal;Injection molding semi-product, upper row terminal and injection molding semi-product can be assembled buckling to form plug-in piece by automatic machine, injection molding semi-product includes middle clamping piece and lower row terminal, middle clamping piece and lower row terminal can be by injection molding;Injection molding semi-product is provided with terminal slot for upper row terminal pressing buckling on, and upper row terminal can be buckled into the terminal slot of injection molding semi-product;Injection molding semi-product and upper row terminal secondary injection molding can form connector product with shell.The utility model is equipped with the plastic groove position matched with upper row terminal on injection molding semi-product, 12pin upper row terminal is buckled into plastic groove position, molding reduces frequency, makes tongue piece head not to use glue point, reduces injection molding frequency, only twice injection molding MD can be molded, compared with three times injection molding in traditional technology, it is more efficient, and appearance is more neat.

Description

Technical Field

[0001] This utility model relates to the field of connection device technology, specifically a USB Type-C female connector with assembled dual-row injection molding. Background Technology

[0002] The USB C 24-pin connector, as a core interface for charging and data transmission in modern electronic devices, is widely used in chargers, mobile phones, and other consumer electronics. Its compact design, convenient reversible insertion, and powerful power transmission and high-speed data transmission capabilities have made it a mainstream interface standard in the industry. This connector features a robust and durable stainless steel housing, effectively resisting wear and impacts from daily use and boasting a mating life of up to 10,000 cycles, fully meeting the needs of frequent and prolonged use.

[0003] However, there is still room for improvement in the manufacturing process of USB C connectors currently on the market. In existing production processes, the upper and lower rows of USB C terminals are usually molded separately, followed by a third injection molding process. Furthermore, glue ingress points inevitably occur at the tongue tip. Optimizing the manufacturing process of USB C connectors and eliminating these glue ingress points has become a pressing issue for the industry. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a USB Type-C female connector with assembled dual-row injection molding, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides a USB Type-C female connector with an assembled dual-row injection molding process, comprising: an upper row of terminals; and an injection-molded semi-finished product. The upper row of terminals and the injection-molded semi-finished product can be assembled by an automatic machine for secondary injection molding. The injection-molded semi-finished product includes a middle clip and a lower row of terminals, which can be injection molded. The injection-molded semi-finished product has terminal slots for pressing and engaging the upper row of terminals. The upper row of terminals can be engaged into the terminal slots of the injection-molded semi-finished product. After secondary injection molding, the injection-molded semi-finished product and the upper row of terminals can be combined with the housing to form a finished connector.

[0008] Optionally, the lower row of terminals extends outward on both sides to form contact pieces, and through holes are provided on the contact pieces, through which the upper row of terminals can be inserted to contact the lower row of terminals.

[0009] Optionally, the terminal strip on the injection-molded semi-finished product is provided with injection molding sealant for injection molding.

[0010] Optionally, the middle clip, the upper row of terminals, and the lower row of terminals are all provided with disassembly tabs, and the connection between the disassembly tabs and the middle clip, the upper row of terminals, and the lower row of terminals is provided with a water inlet.

[0011] Optionally, the disassembly piece has positioning holes for positioning during automated assembly.

[0012] Optionally, the positioning holes of the upper row of terminals coincide with those of the lower row of terminals after injection molding.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a USB Type-C female connector with assembled dual-row injection molding, which has the following advantages:

[0015] 1. This utility model provides a plastic groove on the injection-molded semi-finished product that matches the upper row of terminals, so that the 12-pin upper row of terminals can be fastened into the plastic groove. This reduces the number of molding steps and eliminates the need for a glue injection point on the tongue head, reducing the number of injection molding steps. Only two injection molding steps are required to form the product, which is more efficient than the three injection molding steps required in traditional technology, and the appearance is also cleaner.

[0016] 2. This utility model forms a current path through the contact between the upper and lower terminals. The through-hole design can avoid poor contact caused by shaking. At the same time, the upper terminal interferes with the through-hole of the middle clip to make the grounding contact stable, and the data transmission reaches 10G.

[0017] 3. This utility model uses the terminal sub-material strip with its own injection molding sealant, avoiding the inability of the mold to form or the need to change the overall product structure, and achieves cost savings by forming 24PIN in two stages. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the first injection molding process of this utility model;

[0019] Figure 2 A schematic diagram of the second injection molding process of this utility model is shown;

[0020] Figure 3 A schematic diagram of the finished product assembly process is shown;

[0021] Figure 4 It shows Figure 2 A schematic diagram of the back structure after the second injection molding.

[0022] In the diagram: 1. Top row of terminals; 2. Injection-molded semi-finished product; 21. Middle clip; 22. Bottom row of terminals; 3. Terminal slot; 4. Housing; 5. Finished connector; 6. Contact piece; 7. Through hole; 8. Injection molding sealant; 9. Terminal sub-material strip; 10. Disassembly piece; 11. Sprue; 12. Positioning hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example: Please refer to Figures 1 to 4 According to an embodiment of this utility model, a technical solution is provided: a USB Type-C female connector assembly type dual-row injection molded connector, including: an upper row of terminals 1; an injection molded semi-finished product 2, the upper row of terminals 1 and the injection molded semi-finished product 2 can be assembled by an automatic machine for secondary injection molding, the injection molded semi-finished product 2 includes a middle clamp 21 and a lower row of terminals 22, the middle clamp 21 and the lower row of terminals 22 can be injection molded; the injection molded semi-finished product 2 has terminal slots 3 for the upper row of terminals 1 to be pressed and fastened, the upper row of terminals 1 can be fastened into the terminal slots 3 of the injection molded semi-finished product 2; after secondary injection molding, the injection molded semi-finished product 2 and the upper row of terminals 1 can form a connector finished product 5 with the shell 4.

[0025] The dual-row injection-molded connector with the above structure has a plastic groove on the injection-molded semi-finished product that matches the upper row terminal 1, so that the 12-pin upper row terminal 1 can be snapped into the plastic groove. This reduces the number of molding steps and eliminates the need for a glue injection point on the tongue head, reducing the number of injection molding steps. Only two injection molding steps are required to form the connector, which is more efficient than the three injection molding steps required in traditional technology, and the appearance is also cleaner.

[0026] The lower row of terminals 22 extends outward on both sides to form contact pieces 6. Through holes 7 are provided on the contact pieces 6. The upper row of terminals 1 can be inserted into the through holes 7 on both sides to contact the lower row of terminals 22. Through the contact between the upper row of terminals 1 and the lower row of terminals 22, a current path is formed. The design of the through holes 7 can avoid poor contact caused by shaking. At the same time, the upper row of terminals 1, through interference with the through holes 7 of the middle clamping piece 21, makes the grounding contact stable and the data transmission reaches 10G.

[0027] The terminal sub-material strip 9 on the injection-molded semi-finished product 2 is equipped with injection molding sealant 8 for injection molding. By using the injection molding sealant 8 on the terminal sub-material strip 9, the mold is prevented from being unable to form or the structure of the entire product is changed, thus achieving cost savings by molding 24PINs twice.

[0028] The middle clamp 21, the upper row of terminals 1, and the lower row of terminals 22 are all provided with disassembly pieces 10. The disassembly pieces 10 are provided with sprue 11 at the connection between them and the middle clamp 21, the upper row of terminals 1, and the lower row of terminals 22. The disassembly pieces 10 are used for positioning in automatic machine assembly. After two injection molding processes, the sprue 11 can be broken by the high-frequency vibration of the sprue 11 cutter in the sprue 11 cutting device. Alternatively, the disassembly pieces 10 can be separated from the middle clamp 21, the upper row of terminals 1, and the lower row of terminals 22 by cutting, breaking, or other methods.

[0029] The disassembly piece 10 has positioning holes 12 for automatic machine assembly positioning, providing a visual or mechanical positioning reference for automated assembly equipment (such as pick-and-place machines and injection molding machine robots) to ensure the installation accuracy of the disassembly piece 10 and the terminal body (error ≤ ±0.05mm).

[0030] The positioning holes 12 of the upper row terminal 1 and the lower row terminal 22 after injection molding semi-finished product 2 coincide. The positioning holes 12 of the upper row terminal 1 and the lower row terminal 22 are completely aligned in the axial position (tolerance ≤ ±0.03mm) to ensure the coaxiality of the contact piece 6 and the through hole 7 during insertion and removal, and to avoid poor contact caused by misalignment.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A USB Type-C female connector with assembled dual-row injection molding, characterized in that, include: Upper row of terminals (1); The injection-molded semi-finished product (2) can be assembled and fastened together with the upper row of terminals (1) and the injection-molded semi-finished product (2) by an automatic machine for secondary injection molding. The injection-molded semi-finished product (2) includes a middle clamping piece (21) and a lower row of terminals (22). The middle clamping piece (21) and the lower row of terminals (22) can be formed by injection molding. The injection-molded semi-finished product (2) has a terminal slot (3) for the upper row of terminals (1) to be pressed and fastened, and the upper row of terminals (1) can be fastened into the terminal slot (3) of the injection-molded semi-finished product (2); The injection-molded semi-finished product (2) and the upper row of terminals (1) can be injection-molded again to form a connector finished product (5) with the shell (4).

2. The USB Type-C female connector assembly type dual-row injection molded connector according to claim 1, characterized in that: The lower row of terminals (22) extends outward on both sides to form contact pieces (6), and through holes (7) are provided on the contact pieces (6). The upper row of terminals (1) can be inserted into the through holes (7) on both sides to contact the lower row of terminals (22).

3. The USB Type-C female connector assembly type dual-row injection molded connector according to claim 1, characterized in that: The terminal strip (9) on the injection-molded semi-finished product (2) is provided with injection molding sealant (8) for injection molding.

4. A USB Type-C female connector with assembled dual-row injection molding according to claim 1, characterized in that: The middle clamp (21), the upper row of terminals (1) and the lower row of terminals (22) are each provided with a disassembly piece (10), and a water inlet (11) is provided at the connection between the disassembly piece (10) and the middle clamp (21), the upper row of terminals (1) and the lower row of terminals (22).

5. A USB Type-C female connector with assembled dual-row injection molding according to claim 4, characterized in that: The disassembly piece (10) has positioning holes (12) for positioning during automatic machine assembly.

6. A USB Type-C female connector with assembled dual-row injection molding according to claim 5, characterized in that: The upper row of terminals (1) coincides with the positioning hole (12) of the lower row of terminals (22) after injection molding semi-finished product (2).

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