TWI728219B - Electric connector and manufacturing method thereof - Google Patents

Abstract

An electrical connector and a manufacturing method thereof. Only by embedding and forming an insulator twice, the grounding terminal can be fixed to the front and back conductive terminals, thereby simplifying the manufacturing process of the electrical connector, and the insulator can be aligned and backed The conductive terminals provide a limit to prevent the front and back conductive terminals from being forced to lift or detach from the insulator, so as to improve the structural strength of the electrical connector and increase the service life of the insulator of the electrical connector of the present invention. In addition, the present invention also provides a grounding body in which the insulator is integrally formed, and the grounding body is overlapped with the ground terminal in the insulator to form a ground loop to improve the electrical characteristics of the electrical connector, and increase the strength and durability of the electrical connector .

Description

Electric connector and manufacturing method thereof

The present invention relates to an electrical connector and a manufacturing method thereof. More specifically, it relates to an electrical connector and a manufacturing method thereof in which an insulator and an integrally formed ground body are formed by embedding.

In recent years, electrical connectors have been widely used in various electronic equipment. However, in response to the development of light and thin electronic equipment, the size of electrical connectors has been continuously reduced. In this way, the impact on electrical connectors will not only cause In addition to the increase in processing difficulty, it will also cause the weakening of the structural strength.

In detail, electrical connectors will have components such as grounding terminals, conductive terminals, and insulators. At present, electrical connector components are usually combined with each other by assembly. However, if electrical connectors continue to be reduced in size, electrical connection The size of the connector components is also inevitably reduced, which makes it difficult to assemble the electrical connector components, and it is difficult for the assembled electrical connector to have sufficient strength.

Furthermore, the insulator on the conventional electrical connector itself is provided with a tongue plate, and then assembled in the metal frame. Since the insulator is made of plastic material, the durability of the tongue plate depends on the wear and tear produced during insertion. Whether the external force causes deformation, etc. depends on the occurrence of the situation.

Therefore, how to improve the above-mentioned shortcomings, thereby simplifying the manufacturing process of the electrical connector, and improving the structural strength of the electrical connector, is indeed a problem to be solved urgently by those in the art. .

The present invention also provides an electrical connector, which includes: a ground terminal, the ground terminal has a ground lap portion; a first insulator, the first insulation system is integrated with the ground terminal through an embedded molding method, the The first insulation system exposes the grounding lap portion and has a front outer surface and a back outer surface. The front outer surface has at least one front conductive terminal laying groove, and the back outer surface has at least one back conductive terminal laying groove At least one front conductive terminal, the front conductive terminal has a front contact and a front pin; at least one back conductive terminal, the back conductive terminal has a back contact and a back pin; the front and back conductive terminals are They are respectively laid on the front and back conductive terminal laying grooves to form a first electrical connector semi-finished product with the first insulator, wherein the first insulation system is connected to the front and back conductive terminals, the ground terminal and the ground body. Electrical isolation between; a second insulator, the second insulation system is integrated with the first electrical connector semi-finished product by embedding and forming to form a second electrical connector semi-finished product, and the second insulation system exposes the ground The overlap portion, the front and back contact portions, and the front and back pins; and a grounding body, the grounding system is integrally formed with a shielding shell and a metal inner frame, and the metal inner frame is located in the middle of the shielding shell Part, the second electrical connector semi-finished product can be embedded in the metal inner frame to form a finished electrical connector, so that the metal inner frame overlaps the grounding lap portion to form a ground loop with the ground terminal, and the shielding shell Covering a partial area of the second insulator to provide electrical shielding to the front and back contact portions.

Optionally, in the electrical connector of the present invention, at least one welding portion is added to the bottom of the grounding body, and the welding portion is used for welding the grounding body to a circuit board.

Optionally, in the electrical connector of the present invention, the left and right sides of the inside of the metal inner frame are respectively provided with an embedded guide groove, and the embedded guide groove guides the ground terminal into the inside of the metal inner frame, and The semi-finished product of the second electrical connector is embedded in the metal inner frame to complete the overlap between the grounding lap portion of the ground terminal and the metal inner frame.

Optionally, in the electrical connector of the present invention, the ground terminal further has a ground lap portion, and the ground lap portion is an embossed structure disposed on the surface of the ground terminal facing the embedded guide groove .

Optionally, in the electrical connector of the present invention, the front and back end edges of the front and back conductive terminals respectively extend into the second insulator.

Optionally, in the electrical connector of the present invention, at least one positioning groove is formed inside the metal inner frame, and at least one positioning block is formed at the front end of the second insulator. The second electrical connector semi-finished product is embedded in a predetermined position inside the metal inner frame.

Optionally, in the electrical connector of the present invention, the front and back conductive terminals also have a front embedding structure and a back embedding structure, respectively, so that the front and back conductive terminals are respectively embedded on the front and back sides. Laying grooves for conductive terminals.

Optionally, in the electrical connector of the present invention, the ground terminal further has at least one coupling hole, and the coupling hole allows the first insulator to enter the ground terminal to ensure a stable combination of the ground terminal and the first insulator .

1‧‧‧Electrical connector

11‧‧‧Ground terminal

111‧‧‧Ground connection

112‧‧‧Embossed structure

113‧‧‧Combination hole

12‧‧‧First insulator

121‧‧‧External surface

1211‧‧‧Front conductive terminal laying groove

122‧‧‧Back surface

1221‧‧‧Back conductive terminal laying groove

13‧‧‧Front conductive terminal

131‧‧‧Front contact

132‧‧‧Front pin

133‧‧‧Front embedded structure

14‧‧‧Back conductive terminal

141‧‧‧Back contact

142‧‧‧Back pin

143‧‧‧Back embedded structure

15‧‧‧Second insulator

151‧‧‧Upper surface

152‧‧‧lower surface

153‧‧‧Locating block

16‧‧‧Grounding body

161‧‧‧shielded shell

1611‧‧‧Welding Department

162‧‧‧Metal inner frame

1621‧‧‧Embedded guide groove

1622‧‧‧Locating slot

SF1‧‧‧First connector semi-finished product

SF2‧‧‧Second connector semi-finished product

The first figure is a schematic diagram of the ground terminal of the electrical connector of the present invention.

The second figure is a schematic diagram of the front side of the first insulator and the ground terminal of the electrical connector of the present invention.

The third figure is a schematic diagram of the back of the first insulator and the ground terminal of the electrical connector of the present invention.

The fourth figure is an exploded schematic diagram of the first part of the electrical connector of the present invention.

The fifth figure is a schematic diagram of the front conductive terminal of the electrical connector of the present invention being laid to the front conductive terminal arranging groove from a first perspective.

The sixth figure is a partial schematic diagram of the front conductive terminal of the electrical connector of the present invention being laid to the front conductive terminal laying groove from a second perspective.

The seventh figure is a schematic diagram of the rear conductive terminal of the electrical connector of the present invention being laid to the rear conductive terminal laying groove from a first perspective.

The eighth figure is a partial schematic diagram of the rear conductive terminal laying to the rear conductive terminal laying groove of the electrical connector of the present invention from a second perspective.

The ninth figure is a schematic view from a first perspective after the second insulator of the electrical connector of the present invention is combined with the semi-finished product of the first electrical connector.

The tenth figure is a partial schematic diagram of the second insulator of the electrical connector of the present invention and the semi-finished product of the first electrical connector after being combined from a second perspective.

Figure 11 is an exploded schematic view of the second part of the electrical connector of the present invention.

Figure 12 is a schematic diagram of the component assembly of the electrical connector of the present invention.

Figure 13 is a cross-sectional view taken along line AA in Figure 11.

The fourteenth figure is a cross-sectional view taken along the line BB in the twelfth figure.

The fifteenth figure is a cross-sectional view taken along the CC line in the twelfth figure.

Figure 16 is a cross-sectional view taken along line DD in Figure 12.

Figure 17 is a schematic diagram of the front conductive terminal of the electrical connector of the present invention embedded in the front conductive terminal laying groove.

Figure 18 is a partial three-dimensional cross-sectional view of the grounding body of the electrical connector of the present invention.

Figure 19 is a cross-sectional view taken along line EE in Figure 11.

Figure 20 is a partial three-dimensional cross-sectional view of the electrical connector of the present invention.

Figure 21 is a schematic flow diagram of the manufacturing method of the electrical connector of the present invention.

The following content will be combined with the drawings to illustrate the technical content of the present invention through specific specific embodiments. Those familiar with this technology can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied by other different specific embodiments. Various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the spirit of the present invention. In particular, the proportional relationship and relative positions of the various elements in the drawings are for exemplary purposes only, and do not represent the actual status of the implementation of the present invention.

For the disclosure of the electrical connector and its manufacturing method of the present invention, please refer to the first to twenty-first figures in the drawings of the present invention.

As shown in Figure 21, the manufacturing method of the electrical connector of the present invention is in step S1, providing a ground terminal, a front conductive terminal, a back conductive terminal, and a ground body. Regarding the grounding terminal of the present invention, as shown in the first figure, it has a plate-shaped body of the grounding terminal 11 and a grounding lap portion 111. The grounding lap portion 111 extends from both sides of the plate-shaped body of the grounding terminal 111. Side and front side. Regarding the front conductive terminal 13 of the present invention, as shown in the fourth figure In the illustrated embodiment, there are a plurality of front conductive terminals 13, and the front conductive terminal 13 has a front conductive terminal strip body, a front contact portion 131 and a front pin 132, wherein the front contact portion 131 and the front pin 132 are They are respectively arranged at the front and rear ends of the front conductive terminal strip body, and the front pins 132 extend downward from the front conductive terminal strip body. Regarding the back conductive terminal 14 of the present invention, in the embodiment shown in FIG. 4, it has a plurality of back conductive terminals 14. The back conductive terminal 14 has a back conductive terminal strip body, a back contact portion 141 and a back pin 142 Wherein, the back contact portion 141 and the back pins 142 are respectively disposed on the front and back ends of the back conductive terminal strip body, and the back pins 142 extend downward from the back conductive terminal strip body. The front and back pins 132, 142 can be used for welding substrates or connecting wires, so that the electrical connector of the present invention constitutes a board end connector or a wire end connector, and the front and back contact portions 131, 141 can be used for Electrically contact another electrical connector.

The manufacturing method of the electrical connector of the present invention is to provide a first insulator 12 in step S2, wherein the first insulator 12 is integrated with the ground terminal 11 by embedding, and is formed with a front conductive terminal laying groove 1211 and The backside conductive terminal laying groove 1221 is related to the first insulator 12 of the present invention. In the embodiment shown in the second and third figures, the first insulator 12 has a front outer surface 121 and a back outer surface 122. As shown in the figure, the front outer surface 121 is recessed with a plurality of front conductive terminal laying grooves 1211, and as shown in the third figure, the back outer surface 122 is recessed with a plurality of rear conductive terminal laying grooves 1221.

The manufacturing method of the electrical connector of the present invention is that in step S3, the front conductive terminal 13 is laid to the front conductive terminal laying groove 1211 as shown in the fifth to sixth figures, and The back conductive terminal 14 is laid to the back conductive terminal laying groove 1221 as shown in FIGS. 7 to 8 to form the first electrical connector semi-finished product SF1.

It should be noted that in the first electrical connector semi-finished product SF1, the first insulator 12 provides electrical isolation to the ground terminal 11, the front conductive terminal 13 and the back conductive terminal 14, and avoids the ground terminal 11, the front conductive terminal 13 and the The back conductive terminals 14 are electrically short-circuited.

As shown in the fifth to eighth and seventeenth figures, the two sides of the front and back conductive terminal strip bodies of the front and back conductive terminals 13, 14 also extend the front embedding structure 133 and the back embedding structure, respectively. A structure 143 is provided, and the front and back conductive terminals 13 and 14 are respectively embedded in the front and back conductive terminal laying grooves 1211, 1221, and the front and back embedded structures 133, 143 can be protruding structures.

The manufacturing method of the electrical connector of the present invention is to provide a second insulator 15 in step S4, wherein the second insulator 15 is integrated with the semi-finished electrical connector through a buried molding method. Regarding the second insulator 15 of the present invention, As shown in the embodiment shown in the ninth and tenth figures, the ground bonding portion 111 extends out of the second insulator 15, and the front contact portion 131 and the front pin 132 respectively extend out of the second insulator 15 to provide electrical properties. The front conductive terminal 13 is connected, and the back contact portion 141 and the back pin 142 respectively extend out of the second insulator 15 to provide electrical connection to the back conductive terminal 14.

It should be noted that, as shown in the ninth, tenth, and twelfth figures, the front and back end edges of the front and back conductive terminals 13, 14 respectively extend into the second insulator 15 so that the second insulator 15 can provide a limit for the front and back conductive terminals 13, 14 to prevent the front and back conductive terminals 13, 14 from being forced to lift or detach from the second insulator 15, so as to improve The service life of the electrical connector of the present invention. Therefore, the manufacturing method of the electrical connector of the present invention may further include the step of combining the second insulator 15 with the edges at the front and back ends of the front and back conductive terminals 13 and 14 together.

The manufacturing method of the electrical connector of the present invention is in step S5, so that the second electrical connector semi-finished product SF2 can be embedded in the metal inner frame 162 of the grounding body 16, and the grounding body 16 is overlapped with the grounding lap portion 111, and The grounding terminal 11 constitutes a finished product of an electrical connector 1, and the grounding body 16 is overlapped with the grounding terminal 13 to form a ground loop; the grounding body 16 is formed by sintering metal powder to form the shielding shell 161 and the metal inner frame 162 integrally .

As shown in the embodiment shown in Figures 9 to 16, the grounding body 16 is integrally formed with a shielding shell 161 and a metal inner frame 162. The metal inner frame 162 is located in the middle part of the shielding shell 161. The second electrical connector semi-finished product SF2 can be embedded in the metal inner frame 162 to form a finished electrical connector 1, so that the metal inner frame 162 overlaps the grounding lap portion 111 to form a ground loop with the ground terminal 11, and The shielding shell 161 covers a part of the second insulator 15.

As shown in the eleventh, sixteenth, and eighteenth to twentieth figures, the grounding lap portion 111 further includes an embossed structure 112, and the embossed structure 112 uses an embedded guide groove 1621 The ground terminal is guided into the inner metal frame 162, and the embossed structure 112 is used to connect the metal inner frame 162. Therefore, the second electrical connector semi-finished product SF2 is embedded in the metal inner frame 162 to complete the ground terminal The grounding lap portion 111 of 11 is overlapped with the metal inner frame 162, and the shielding shell 161 of the grounding body 16 covers the semi-finished product SF2 of the second electrical connector, forming the benefits of protection and shielding, and the grounding terminal 11 also has There is at least one coupling hole 113 for the first insulator 12 to enter the ground terminal 11 to ensure a stable combination of the ground terminal 11 and the first insulator 12.

It should also be noted that in other embodiments of the present invention, the shielding shell 161 of the grounding body 16 can also form a shielding loop by other means to provide electrical shielding to the positive and back conductive terminals 13, 14 instead of using The above-mentioned overlapping grounding overlapping portion 111 is limited, and at least one welding portion 1611 is added to the bottom of the shielding shell 161, and the welding portion 1611 is used for welding the grounding body 16 to a circuit board (not shown in the figure).

It should be noted that, as shown in the eleventh, eighteenth to twentieth figures, at least one positioning groove 1622 is formed inside the metal inner frame 162, and the front end of the second insulator 15 At least one positioning block 153 is formed, and the second electrical connector semi-finished product SF2 is embedded in a predetermined position inside the metal inner frame 162 by the structural cooperation of the positioning groove 1622 and the positioning block 153.

In summary, the present invention provides an electrical connector and a manufacturing method thereof. The grounding terminal can be fixed to the front and back conductive terminals only by embedding and forming the insulator twice, and the manufacturing process of the electrical connector can be simplified. , And through the integrated combination of insulators, the volume of the electrical connector can be effectively reduced, and the structural strength of the electrical connector can be improved. In addition, the present invention can also provide an integrated grounding body lapped with the grounding terminal to form a grounding loop to improve the electrical characteristics of the electrical connector. Furthermore, since the electrical connector of the present invention has a ground terminal and a front and back conductive terminals, it can be a USB Type C electrical connector.

The above-mentioned embodiments only exemplify the principles and effects of the present invention, and are not used to limit the present invention. Anyone familiar with the technology can modify and change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be as The scope of patent application of the present invention is listed.

1‧‧‧Electrical connector

11‧‧‧Ground terminal

111‧‧‧Ground connection

112‧‧‧Embossed structure

Claims (11)

A method for manufacturing an electrical connector includes: providing a ground terminal, at least one front conductive terminal, at least one back conductive terminal, and at least one ground body, wherein the ground terminal has a ground lap portion, and the front conductive terminal has A front contact portion and a front pin, the back conductive terminal has a back contact portion and a back pin; a first insulator is provided, wherein the first insulation system is integrated with the ground terminal through an embedded molding method The first insulation system exposes the grounding lap portion, and has a front outer surface and a back outer surface, the front outer surface is formed with at least one front conductive terminal laying groove, and the back outer surface is formed with at least one back surface Conductive terminal laying groove; the front conductive terminal is laid to the front conductive terminal laying groove, and the back conductive terminal is laid to the back conductive terminal laying groove to form a first electrical connector semi-finished product, wherein the first insulator The positive and back conductive terminals, the ground terminal and the ground body are electrically isolated from each other; and a second insulator is provided, and the second insulation system is combined with the semi-finished product of the first electrical connector by embedding and forming. The ground connection part, the front and back contact parts, and the front and back pins are respectively exposed; wherein the grounding system is integrally formed with a shielding shell and a metal inner frame, and the metal inner frame is located on the shield In the middle part of the shell, the second electrical connector semi-finished product can be embedded in the metal inner frame to form a finished electrical connector, so that the metal inner frame overlaps the grounding lap portion to form a ground loop with the ground terminal, and The shielding shell is made to cover part of the area of the second insulator to provide electrical shielding to the front and back contact portions. According to the manufacturing method of the electrical connector described in the first item of the scope of the patent application, the grounding system is integrated to form the shielding shell and the metal inner frame through metal powder sintering. As described in item 1 of the scope of patent application, the manufacturing method of the electrical connector further includes: combining the second insulator with the edges of the front and back ends of the front and back conductive terminals. An electrical connector includes: a ground terminal, the ground terminal having a grounding lap portion; a ground body; a first insulator, the first insulation system is integrated with the ground terminal through a buried molding method, the The first insulation system exposes the grounding lap portion and has a front outer surface and a back outer surface. The front outer surface has at least one front conductive terminal laying groove, and the back outer surface has at least one back conductive terminal laying groove At least one front conductive terminal, the front conductive terminal has a front contact and a front pin; at least one back conductive terminal, the back conductive terminal has a back contact and a back pin; the front and back conductive terminals are They are respectively laid on the front and back conductive terminal laying grooves to form a first electrical connector semi-finished product with the first insulator, wherein the first insulation system is connected to the front and back conductive terminals, the ground terminal and the ground body. Electrically isolated between; and a second insulator, the second insulation system is integrated with the first electrical connector semi-finished product by embedding and forming to form a second electrical connector semi-finished product, and the second insulation system exposes the The grounding lap portion, the front and back contact portions, and the front and back pins; wherein the grounding system is integrally formed with a shielding shell and a metal inner frame, and the metal inner frame is located in the middle of the shielding shell, The second electrical connector semi-finished product can be embedded in the metal inner frame to form a finished electrical connector, so that the metal inner frame overlaps the grounding lap portion to form a ground loop with the ground terminal, and the shielding shell is covered Provide electrical shielding to the front and back contact portions in a partial area of the second insulator. According to the electrical connector described in item 4 of the scope of patent application, at least one welding part is added to the bottom of the grounding body, and the welding part is used for welding the grounding body to a circuit board. For example, the electrical connector described in item 4 of the scope of patent application, wherein the left and right sides of the inner metal frame are respectively provided with an embedded guide groove, and the embedded guide groove guides the ground terminal into Into the metal inner frame, and the second electrical connector semi-finished product is embedded in the metal inner frame to complete the overlap of the grounding lap portion of the ground terminal and the metal inner frame. The electrical connector described in item 4 of the scope of patent application, wherein the grounding lap portion of the grounding terminal is an embossed protrusion provided on the surface of the grounding terminal facing the embedding guide groove structure. The electrical connector as described in item 4 of the scope of patent application, wherein the front and back end edges of the front and back conductive terminals respectively extend into the second insulator. The electrical connector according to item 4 of the scope of patent application, wherein at least one positioning groove is formed inside the metal inner frame, and at least one positioning block is formed at the front end of the second insulator, and the positioning groove is connected to the The structure of the positioning block is matched, and the semi-finished product of the second electrical connector is embedded in a predetermined position inside the metal inner frame. For example, the electrical connector described in item 4 of the scope of patent application, wherein the front and back conductive terminals also have a front embedded structure and a back embedded structure, respectively, so that the front and back conductive terminals are respectively embedded in the Laying grooves for front and back conductive terminals. For the electrical connector described in item 4 of the scope of patent application, the ground terminal further has at least one coupling hole for the first insulator to enter the ground terminal to ensure that the ground terminal and the first insulator The solid combination.

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