TWI535135B - Electrical connector manufacturing method - Google Patents

Description

Electrical connector manufacturing method

The invention provides a method for manufacturing an electrical connector, in particular to insert a joint into a hole of a seat body, and then combine the joint with the corresponding hollow ground portion of the metal shell and the ground terminal of the terminal group by machining. Integrate to form a common ground loop and improve the shielding effect of the ground.

According to the rapid development of electronic technology and multimedia information, electronic devices such as computers, notebook computers, tablet computers, and smart phones have become commonplace in all corners of society, and all kinds of electronic device designs tend to Light, thin, short, and small, in order to reduce the size of the electronic device, the structure of the components on the internal circuit board of the electronic device needs to be small and precise, and the overall structural strength needs to be strengthened to meet the current development trend.

Furthermore, since the amount of signal transmission between the electronic device and the panel is very large and the frequency is relatively high, the general metropolitan area is achieved by using a low voltage differential signaling (LVDS) connector having characteristics of ultra high speed, low power consumption, and low electromagnetic wave radiation. Panels such as notebook computers, LCD TVs, and LCD screens are electrically connected, and as connector sizes become smaller and smaller, various types of connectors have been developed, and most of the connectors are available for cable routing. It is connected to a plurality of signal terminals or power terminals inside the connector for another connector to transmit signals or power through the circuit board to the control circuit for signal or power transmission.

However, as the size of the connector is miniaturized and the transmission speed is greatly increased, and the number of terminals is increased and the distribution is dense, it is necessary to consider the proximity between adjacent terminals or any turning or bending of the terminals to cause high-frequency signal transmission. Signal interference (such as static interference, electromagnetic interference, impedance matching, noise or crosstalk between adjacent terminals), usually in the outer cover of the connector is covered with a metal shielded housing, and the grounding part of the connector is The shield case is guided to the ground of the circuit board and has a grounding effect to ensure that the high frequency signal is not easily interfered with.

However, the cable on the early conventional connector is grounded by the elastic piece resisting the contact or the grounding piece through the welding method, and the wire bonding factory connects the cable and the signal and the grounding part one by one. Resisting the contact method is prone to contact instability, resulting in poor grounding effect or lack of failure. If the grounding piece and the coaxial wire are used for the secondary welding process, the terminal and the shielding case need to be fully surfaced. Electroplating can complete enough conductive and welded surfaces, resulting in more complicated processes and considerable labor and cost. It is difficult to ensure the quality and yield of manufacturing, and it is still necessary to redesign the industry to effectively solve it.

Therefore, in view of the problems and shortcomings of the above-mentioned conventional connectors, the inventors have collected and collected relevant data through multi-party evaluation and consideration, and have used the trial and modification of the industry's many years of research and development experience in the industry to design the manufacture of such electrical connectors. Method invention patent was born.

The main object of the present invention is that the terminal block and the metal casing are integrally formed with a seat body by means of plastic in a mosaic manner, and a hole penetrating through the terminal block is formed on the seat body, so that the joint is made of a metal shell. The hollow portion disposed on the upper portion is placed in the corresponding hole of the seat body, and the joint is combined with the corresponding hollow ground portion of the metal shell and the corresponding ground terminal of the terminal group by a machining method to form a common ground loop. It is not necessary to use the shrapnel to resist contact or additionally set the grounding piece and the coaxial wire for the secondary welding process, which can effectively simplify the subsequent process to save man-hours and reduce the cost, and improve the shielding effect of the grounding, and the overall signal transmission quality is more stable. .

The secondary object of the present invention is to directly integrate the metal casing with the corresponding ground terminal on the terminal group by using the joint, and the electromagnetic interference generated around the electrical connector can be formed by the metal casing and the ground terminal of the terminal group. And the noise is guided to the ground of the preset circuit board for release, and the joint non-elastic piece resists the contact mode, thereby ensuring the overall structural stability and reliability, as well as improving the quality and yield of the manufacturing, and is not grounded. The shape of the sheet member is limited, and the overall height is lowered and made thinner.

In order to achieve the above objects and effects, the technical means and the configuration of the present invention will be described in detail with reference to the preferred embodiments of the present invention.

Please refer to the first, second, third, fourth and fifth figures, which are the manufacturing flow chart, the stereoscopic appearance view, the stereoscopic exploded view and the stereoscopic decomposition of another perspective of the present invention. The figure and the side cross-sectional view can be clearly seen from the figure. The present invention includes a metal casing 1, a terminal group 2, a seat body 3, a joint 4 and a cable 5, when the manufacturing method of the present invention is utilized. According to the following steps: (101) The terminal block 2 and the metal casing 1 are integrally formed with a seat body 3 by means of plastic in a mosaic manner, and at least one hole 311 penetrating through the terminal group 2 is formed on the seat body 3. And at least one hollow portion 11 disposed on the metal casing 1 corresponds to the hole 311; (102) at least one joint 4 is placed in the seat body 3 by the hollow portion 11 of the metal casing 1 In the hole 311, the joint 4 is joined to the hollow portion 11 of the metal casing 1 and the corresponding ground terminal of the terminal group 2 by a machining method to form a common ground loop.

It can be clearly seen from the above-mentioned implementation steps that the above-mentioned components are manufactured in the steps of first bending the strips connected to the base 20 of the terminal set 2 and the rear of the metal casing 1 in a flat shape. The bent portion (not shown) abuts the positioning, and the terminal group 2 has a plurality of signal terminals and at least one ground terminal, and the contact portion 21 at the side of the ground terminal base 20 corresponds to the metal casing 1 At least one of the cross-sections may be a through-hole 111 or a hollow portion 11 of the slit, and the seat body 3 is integrally formed by insert molding using plastic, and is formed at the front side of the seat body 3 side. The contact portion 21 for the terminal group 2 is combined with the abutting portion 31, and The abutting portion 31 is formed with at least one hole 311 at the bottom surface or surface of the contact portion 21 penetrating to the grounding terminal, and the hollow portion 11 of the metal casing 1 corresponds to the bottom or the top of the hole 311. The solder may be placed in the hole 311 of the butting portion 31, but in practical applications, it may be solder paste, conductive paste or metal block, etc., and then used for soldering, ultraviolet light (UV) curing, laser welding or other processing methods. The joint 4 is integrated with the hollow portion 11 of the metal casing 1 and the contact portion 21 of the corresponding ground terminal on the terminal group 2 to form a common ground loop.

Furthermore, after the joint 4 of the above step (102) is integrated with the hollow portion 11 of the metal casing 1 and the contact portion 21 of the terminal group 2, the strip of the terminal group 2 can be used as the break point of the base portion 20 as a break point. The terminal group 2 and the metal casing 1 are further cut off, and a gap is formed between the terminal group 2 and the metal casing 1 without electrical contact, and the terminal group 2 and the metal casing 1 can be further changed according to actual needs or structural design changes. The metallization is performed to complete a sufficient conductive and soldered surface, and the cable 5 can be further positioned in the nanogroove 32 at the rear of the other side of the base 3, and the plurality of cores 51 of the cable 5 are provided. It can be electrically connected to the base portion 20 of the terminal group 2 by means of welding, riveting or puncture, etc., and the metal casing 1, the terminal group 2 and the base body 3 are designed in such a manner that they can be assembled. The wire-to-wire connector, the wire-to-board connector or other equivalent structural design is implemented. Therefore, all the simple modifications and equivalent structural changes that are made by using the specification and the drawings of the present invention are equally included in the present invention. Within the scope of patent coverage, .

Please refer to the sixth, seventh and eighth figures, which are the three-dimensional exploded view before the joint of the invention, the three-dimensional appearance before welding and the three-dimensional appearance after welding. It can be clearly seen from the figure. At least one connecting piece 112 is bent inwardly at the periphery of the through hole 111 of the hollow portion 11 of the metal casing 1 , so that the terminal group 2 and the metal casing 1 can be integrally formed with the seat body 3 by means of plastic in a mosaic manner. A hole 311 penetrating into the terminal block 2 is formed on the base 3, and the hollow portion 11 cut in the metal casing 1 corresponds to the hole 311, and the connecting piece 112 extends into the hole 311. The joint 4 can be placed in the corresponding hole 311 of the seat body 3 by the hollow portion 11 of the metal shell 1 and brought into contact with the connecting piece 112, and then the joint 4 can be soldered by welding. The connecting piece 112 of the metal casing 1 and the corresponding grounding terminal of the terminal group 2 are integrated to form a common grounding circuit, and the electromagnetic wave generated around the electrical connector can be formed by the metal casing 1 mating with the grounding terminal of the terminal group 2. Interference and noise guidance to the preset board ground terminal Release, and the overall quality of signal transmission more stable and increase the shielding effect of the ground.

Therefore, the present invention is directed to integrally connecting the metal casing 1 and the corresponding ground terminal on the terminal group 2 by using at least one joint 4 to form a common ground loop, which does not need to pass through the elastic piece to resist contact or additional The grounding piece and the coaxial line are provided for the secondary welding process, which can effectively simplify the subsequent process to save man-hours and reduce the cost, and the joint structure 4 is not the elastic piece resisting contact mode, thereby ensuring the overall structural stability and reliability. And improve manufacturing The quality and yield can be formed by the common grounding loop of the metal housing 1 and the grounding terminal of the terminal group 2. The overall signal transmission quality is more stable, and the shielding effect of the grounding is improved, and the shape of the grounding member is not limited. The overall height is reduced and thinner.

The above detailed description is intended to be illustrative of a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and other equivalents and modifications may be made without departing from the spirit of the invention. Changes are intended to be included in the scope of the patents covered by the present invention.

In summary, the manufacturing method of the electrical connector of the present invention can achieve its efficacy and purpose, so the invention is an invention with excellent practicability, and is an application for conforming to the invention patent, and submits an application according to law. The Commission will grant this case as soon as possible to protect the inventor's hard work. If there is any doubt in the bureau, please do not hesitate to give instructions, the inventor will try his best to cooperate and feel polite.

1‧‧‧Metal shell

11‧‧‧镂空部

111‧‧‧through hole

112‧‧‧Connecting piece

2‧‧‧Terminal group

20‧‧‧ base

21‧‧‧Contacts

3‧‧‧ body

31‧‧‧Docking Department

311‧‧‧ hole

32‧‧‧N.

4‧‧‧ conjugate

5‧‧‧ cable

51‧‧‧core

The first figure is a manufacturing flow chart of the present invention.

The second figure is a perspective view of the present invention.

The third figure is a perspective exploded view of the present invention.

The fourth figure is an exploded perspective view of another perspective of the present invention.

Figure 5 is a side cross-sectional view of the present invention.

The sixth drawing is an exploded perspective view of the conjugate of the present invention before it is placed.

Figure 7 is a perspective view of the joint of the present invention before welding.

The eighth figure is a three-dimensional appearance of the joint of the present invention after welding.

Claims (6)

A manufacturing method of an electrical connector includes a metal case, a terminal set, a seat body and a joint, and is implemented according to the following steps: (a) integrally forming a terminal block and a metal case by using plastic in a mosaic manner And at least one hole penetrating through the terminal group, and at least one hollow portion of the metal casing is corresponding to the hole; (b) at least one joint is made of a metal shell The hollow portion of the body is placed in the corresponding hole of the seat body, and the joint is integrated with the hollow portion of the metal shell and the corresponding ground terminal on the terminal group by a machining method to form a common ground loop. The method of manufacturing the electrical connector of claim 1, wherein the terminal group has a plurality of signal terminals and at least one ground terminal, and a contact portion is provided at one side of the terminal group, and one side of the seat body Then, an abutting portion for connecting the contact portions of the terminal group is formed, and at least one hole at the bottom surface or surface of the contact portion penetrating to the ground terminal is formed on the mating portion. The method of manufacturing the electrical connector of claim 1, wherein the step (b) bonding material is solder. The method of manufacturing the electrical connector of claim 1, wherein the step (b) is a solder paste, a conductive paste or a metal block. The method of manufacturing the electrical connector of claim 1, wherein the step (b) is a seam that can be welded and the metal shell is hollowed out. The corresponding ground terminal on the terminal and the terminal group are integrated to form a common ground loop. The method of manufacturing the electrical connector according to the first aspect of the invention, wherein the step (b) is a method of processing by ultraviolet light curing or laser welding, corresponding to the hollow portion of the metal casing and the terminal group. The ground terminals are integrated to form a common ground loop.