A USB interface structure for precisely positioning the metal plug

Abstract

This utility model relates to the technical field of USB molding devices and discloses a USB interface structure for precisely positioning a metal plug. It is mounted on a molding die for a plastic column, into which a female connector is inserted. The structure includes a limiting component, comprising a limiting hole and a positioning pin. At least one limiting hole is provided on the female connector. A supporting base plate is provided at the bottom of the molding die, and an extension of the supporting base plate protrudes from the outer edge of the molding die. The extension is provided with a positioning pin that matches the limiting hole. This novel design adds a limiting hole to the female connector, which, in conjunction with the positioning pin on the molding die, fixes the position of the female connector, making the exposed dimensions of the molded female connector more accurate, ensuring the consistency of the USB connector after molding, and improving the yield rate.

Description

Technical Field

[0001] This utility model relates to the field of USB molding device technology, and in particular to a USB interface structure for precisely positioning the metal plug. Background Technology

[0002] Currently, in the manufacturing process of USB 3.0 and Type-C female connectors, a metal insert is typically placed into the cavity of an injection mold as an insert. Molten plastic is then injected into the cavity, forming a single piece between the plastic body and the metal insert. After molding, the front end of the metal insert must protrude from the plastic body to a specified length to mate with the connector.

[0003] Currently, the positioning of metal inserts in molding dies is generally done manually by visual inspection. Because the metal inserts lack rigid front-to-back constraints within the mold, their placement depends entirely on the operator's skill level. This results in large fluctuations in the exposed dimensions of the metal inserts, poor product consistency after molding, and a decreased yield rate. Furthermore, when assembling USB or Type-C ports onto circuit boards, inaccurate exposed lengths of the metal inserts can lead to difficulties in insertion and removal, soldering misalignment, and even short circuit hazards.

[0004] In the current process of one-piece injection molding of USB 3.0 / TYPE-C female connectors, there is a lack of a simple, reliable, and low-cost metal plug-in precise positioning structure, which leads to unstable exposed dimensions of the metal plug-in, insufficient assembly accuracy, and low yield. Utility Model Content

[0005] The purpose of this invention is to provide a USB interface structure for precisely positioning the metal plug-in, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A USB interface structure for precisely positioning a metal insert is provided on a plastic column forming mold. A female connector is inserted into the plastic column. The structure includes a limiting component, which includes a limiting hole and a positioning pin. At least one limiting hole is provided on the female connector. The bottom of the plastic column forming mold is provided with a supporting base plate, and the extension of the supporting base plate protrudes from the outer edge of the plastic column forming mold. The extension is provided with a positioning pin that matches the limiting hole.

[0008] In the preferred embodiment of this utility model, the molding die for forming the glue column is provided with an installation cavity in which a female connector is inserted into one end of the glue column. The installation cavity and the molding die for forming the glue column form a cavity for casting the glue column. The female connector with the limiting hole faces downward and is aligned with the positioning pin provided on the extension for positioning.

[0009] More preferably, there are two limiting holes, and the limiting holes are circular holes.

[0010] More preferably, the limiting hole is provided, and the limiting hole is a square hole.

[0011] More preferably, the female connector is a metal plug-in, with one end being a power plug-in end and the other end being located inside a rubber column. It is integrally injection molded in a rubber column molding mold, and the limiting hole on the female connector is located on the end near the plug-in rubber column.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention solves the positioning accuracy problem during injection molding by adding a limiting hole to the female connector. This hole, along with positioning pins on the molding die, is used to fix the position of the female connector, ensuring that the exposed dimensions of the metal inserts of the molded female connector are accurate and consistent. At the same time, it ensures that the position of the USB port or TYPE-C port on the circuit board and the length of the metal shell match, ultimately guaranteeing that the female connector is accurately and reliably assembled on the circuit board, thereby improving product quality, production yield, and efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the USB interface structure for precisely positioning the metal plug-in according to this utility model.

[0015] Figure 2 This is a top view of the glue column mold in the interface structure of this utility model;

[0016] Figure 3 for Figure 2 CC section view;

[0017] Figure 4 This is a side view of the glue column mold in the interface structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the TYPE-C interface according to another embodiment of the present invention;

[0019] Figure 6 This is a top view of a glue column mold according to another embodiment of the present invention;

[0020] Figure 7 for Figure 6 CC section view;

[0021] Figure 8 This is a side view of a glue column mold according to another embodiment of the present invention;

[0022] Reference numerals: 1-Female connector, 10-Limiting hole, 100-Mounting cavity, 2-Glue column, 20-Cavity to be poured, 3-Glue column forming mold, 4-Positioning pin, 5-Supporting base plate, 50-Extension. 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] like Figure 1 and Figure 4 As shown, a USB interface structure for precisely positioning a metal insert is provided on a plastic column forming mold 3. A female connector 1 is inserted into the plastic column 2. The structure includes a limiting component, which includes a limiting hole 10 and a positioning pin 4. At least one limiting hole 10 is provided on the female connector 1. The bottom of the plastic column forming mold 3 is provided with a supporting base plate 5, and the extension 50 of the supporting base plate 5 protrudes from the outer edge of the plastic column forming mold 3. The extension 50 is provided with a positioning pin 4 that is adapted to the limiting hole 10.

[0025] The preferred embodiment of this example is referred to... Figure 3 The molding die 3 is provided with an installation cavity 100 for inserting a female connector 1 into one end of the plastic column 2. The installation cavity 100 and the molding die 3 form a casting cavity 20 for the plastic column 2. The female connector 1 with the limiting hole 10 faces down and is aligned with the positioning pin 4 on the extension 50 for positioning, which plays a precise limiting role in the length of the female connector 1 inserted into the plastic column 2.

[0026] The first embodiment of the limiting hole 10 in this example refers to... Figure 1 The limiting hole 10 is provided in two parts, and the limiting hole 10 is a circular hole. There are at least two, and possibly more than three, circular holes, which are evenly distributed on the extension 50 and on the same horizontal line.

[0027] Another embodiment of the limiting hole 10 in this embodiment refers to the TYPE-C interface. Figure 5 Since the TYPE-C interface is smaller in overall size than the USB interface, a limiting hole 10 is provided. The limiting hole 10 is a square hole, which can be square, rectangular, or rhomboid, and only needs to have the limiting function of restricting the movement and rotation of the female connector 1. The positioning pins on the molding die that matches the limiting hole are as follows: Figure 6-8 As shown.

[0028] More preferably, the female connector 1 is a metal plug-in, one end of which is a power plug-in end, and the other end is located inside the glue pillar 2. It is integrally injection molded in the glue pillar molding mold 3. The limiting hole 10 on the female connector 1 is located on the end close to the plug-in glue pillar 2. The design position of the limiting hole 10 is based on the design length of the exposed metal plug-in. The extension length of the extension part 50 and the position of the positioning pin 4 can meet the product requirements.

[0029] The working principle of this embodiment is as follows: The power connector 1 is positioned with its power plug facing outwards, and the side of the female connector 1 with the limiting hole 10 is facing downwards, inserted into the mounting cavity 100 of the molding die 3. After the limiting hole 10 aligns with the positioning pin 4, the female connector 1 is lowered and insertion stops, completing precise positioning. Simultaneously, this precisely limits the length of the female connector 1 inserted into the molding die 2, ensuring that the exposed length of the metal insert meets the design length, achieving standardized production and guaranteeing a high yield rate. This embodiment is for a USB 3.0 interface; another embodiment is for a TYPE-C interface. Of course, it can also adapt to various models of USB and TYPE-C interfaces.

[0030] 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 the 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 interface structure for precisely positioning a metal insert, disposed on a molding die for a plastic column, wherein a female connector is inserted into the plastic column, characterized in that: The device includes a limiting component, which includes a limiting hole and a positioning pin. The limiting hole is at least one and is located on the female connector. The bottom of the plastic column forming mold is provided with a supporting base plate, and the extension of the supporting base plate protrudes from the outer edge of the plastic column forming mold. The extension is provided with a positioning pin that is adapted to the limiting hole.

2. The USB interface structure for precisely positioning the metal plug according to claim 1, characterized in that: The molding die for the rubber column is provided with an installation cavity in which a female connector is inserted into one end of the rubber column. The installation cavity and the molding die for the rubber column form a cavity for pouring the rubber column. The side of the female connector with the limiting hole faces down and is aligned with the positioning pin provided on the extension for positioning.

3. The USB interface structure for precisely positioning the metal plug according to claim 1, characterized in that: There are two limiting holes, and the limiting holes are circular.

4. The USB interface structure for precisely positioning the metal plug according to claim 1, characterized in that: The limiting hole is provided, and the limiting hole is a square hole.

5. The USB interface structure for precisely positioning the metal plug according to claim 1, characterized in that: The female connector is a metal plug-in, with one end being a power plug-in terminal and the other end located inside a rubber column. It is integrally injection molded in a rubber column molding mold. The limiting hole on the female connector is located on the end near the plug-in rubber column.

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