CN112821111A

CN112821111A - USB connector

Info

Publication number: CN112821111A
Application number: CN202011622765.0A
Authority: CN
Inventors: 涂瀚; 丁树林; 涂安平; 王振江
Original assignee: Yiteng Electronic Science & Technology Kunshan Co ltd
Current assignee: Yiteng Electronic Science & Technology Kunshan Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-05-18
Anticipated expiration: 2040-12-31
Also published as: CN112821111B

Abstract

The invention discloses a USB connector which comprises a metal shell and a terminal module. The first row of conductive terminals includes first ground terminals located on both sides, and each first ground terminal has a first pin extending vertically toward the middle spacer. The second row of conductive terminals comprises second grounding terminals positioned on two side edges, and each second grounding terminal is provided with a second pin vertically extending towards the middle separation sheet. Fixing holes are formed at two opposite edges of the middle spacer, into which the corresponding first pin and the second pin can be inserted at the same time, and both the first pin and the second pin can be connected with the fixing holes. The terminal and the middle spacer can be firmly combined without welding and fixing, so that a stable product structure can be provided, a stable grounding loop can be formed, and the assembly cost is saved.

Description

USB connector

Technical Field

The present invention relates to the field of connector technology, and more particularly to a USB connector in which a ground terminal and a middle spacer can be firmly combined without spot welding.

Background

USB Type-C, Type-C for short, is a form of Universal Serial Bus (USB) hardware interface. The USB interface has the characteristics of thinner design, higher transmission speed (USB3.1 is 10Gbps at the highest) and stronger power transmission (100W at the highest), more importantly, the Type-C interface supports the double-sided insertion of the USB interface, and the worldwide problem of 'the USB can not be inserted accurately forever' is formally solved. After the USB Type-C specification is released, many new Android mobile devices, notebook computers, desktop computers, and even 3C devices such as game machines start to use the connection port.

The existing USB connector is connected to the middle spacer through the ground terminal, so that a complete ground loop can be formed. Specifically, a bending piece protrudes from the grounding terminal, the bending piece is pressed against the middle spacer downward, so that the grounding terminal and the middle spacer form grounding contact, and then the bending piece and the middle spacer are welded and fixed together in a spot welding manner.

Therefore, the conventional USB connector has one more spot welding process in the assembling process, so that a structural risk is increased, the cost is increased, and the product quality cannot be guaranteed.

Therefore, there is a need for a new connector that overcomes the above-mentioned problems of the prior art.

Disclosure of Invention

The main objective of the present invention is to provide a USB connector, in which a grounding terminal and a middle spacer can be firmly combined without welding, so as to provide a stable product structure, form a stable grounding loop, and save assembly cost.

Other objects and advantages of the present invention will be further understood from the technical features disclosed in the present invention.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a USB connector which comprises a metal shell and a terminal module. The terminal module comprises a first row of conductive terminals, a second row of conductive terminals and a middle spacing piece, wherein the first row of conductive terminals and the second row of conductive terminals are respectively positioned on two sides of the middle spacing piece. The first row of conductive terminals comprises first ground terminals located on two side edges, and each first ground terminal is provided with a first pin extending vertically towards the middle spacer. The second row of conductive terminals comprises second grounding terminals positioned on two side edges, and each second grounding terminal is provided with a second pin vertically extending towards the middle spacer. Two fixing holes are formed at two opposite edges of the middle spacer, each of the fixing holes is capable of simultaneously inserting the corresponding first pin and the second pin therein, and the first pin and the second pin are capable of forming connection with the fixing holes.

In one embodiment, the terminal module further includes a plastic body, wherein the middle spacer is located in a middle position of the plastic body, and the plastic body covers the first row of conductive terminals, the second row of conductive terminals, and the middle spacer.

In one embodiment, the first pin and the second pin are arranged in a staggered manner, are inserted into the fixing hole in parallel and are elastically interfered with the fixing hole.

In one embodiment, the first pin and the second pin are both elastic.

In one embodiment, the first pin is formed with a first through hole; the second pin is provided with a second through hole.

In one embodiment, the first pin and the second pin are both in a fish eye structure.

In one embodiment, the first pin and the second pin have guiding ends for guiding insertion into the fixing holes.

In one embodiment, the first ground terminal has a pair of terminal ends, a solder tail end, and an intermediate portion connecting the terminal ends and the solder tail end, and the first pin is formed in the intermediate portion and perpendicular to the intermediate portion.

In one embodiment, the second ground terminal has a pair of terminal ends, a solder tail end, and an intermediate portion connecting the terminal ends and the solder tail end, and the second pin is formed in the intermediate portion and perpendicular to the intermediate portion.

In one embodiment, the first row of conductive terminals and the second row of conductive terminals further include power terminals and signal terminals.

Compared with the prior art, the USB connector of the present invention has the elastic interference state between the first pin and the second pin and the fixing hole at the same time, so as to ensure that the first ground terminal, the second ground terminal, and the middle spacer form a ground loop. In addition, the USB connector can obtain a stable product structure through the clamping structure among the first grounding terminal, the second grounding terminal and the middle spacing piece. In addition, the USB connector does not need a spot welding process, so that the assembly cost is saved.

Drawings

Fig. 1 is a schematic perspective view of a USB connector according to the present invention.

Fig. 2 is an exploded view of a part of the structure of the USB connector according to the present invention.

FIG. 3 is an exploded view of the USB connector of the present invention.

Fig. 4 is a schematic diagram showing the relative positions of the first terminal module, the second terminal module and the middle spacer of the USB connector according to the present invention.

Fig. 5 is a schematic view of the first terminal module, the second terminal module and the middle spacer of the USB connector according to the present invention.

The main reference numerals in the drawings accompanying the present description are as follows:

USB connector 1 metal shell 10

Terminal module 20 first row conductive terminals 21

First terminal module 21a first ground terminal 210

First pin 211 and first through hole 212

Second row of conductive terminals 22a second terminal module 22a

Second ground terminal 220 second pin 221

Leading

ends

2110, 2210 of second through hole 222

Middle spacer 23 fixing hole 230

A plastic body 24.

Detailed Description

The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. The directional terms used in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., refer to the directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention.

Referring to fig. 1, fig. 2 and fig. 3, an embodiment of the invention provides a USB connector 1, where the USB connector 1 includes a metal shell 10 and a terminal module 20. Wherein the terminal module 20 is fixed in the metal case 10.

As shown in fig. 2 and 3, the terminal module 20 includes: the first row of conductive terminals 21, the second row of conductive terminals 22, the middle spacer 23, and the plastic body 24, wherein the middle spacer 23 is located in the middle of the plastic body 24, and the first row of conductive terminals 21 and the second row of conductive terminals 22 are respectively located on two sides of the middle spacer 23 and electrically isolated by the plastic body 24. The plastic body 24 covers the first row of conductive terminals 21, the second row of conductive terminals 22, and the middle spacer 23, so as to provide the main bearing function and the electrical isolation function. The intermediate spacer 23 is a metal sheet.

In this embodiment, the first row of conductive terminals 21 forms a first terminal module 21a through an injection molding process, the second row of conductive terminals 22 forms a second terminal module 22a through an injection molding process, the first terminal module 20 and the second terminal module 20 are clamped or buckled on the middle spacer 23, and then the terminal module 20 is formed through a secondary injection molding process.

Of course, it is contemplated that the first row of conductive terminals 21, the second row of conductive terminals 22 and the middle spacer 23 may be formed into the terminal module 20 by a one-shot injection molding process.

Therefore, the present invention does not limit the manufacturing process of the terminal module 20, and the structure of the present invention is as follows.

As shown in fig. 4, the first row of conductive terminals 21 includes first ground terminals 210 located at two sides, each of the first ground terminals 210 has a pair of terminal ends, a tail end and a middle portion, wherein the middle portion connects the terminal ends and the tail end, and a first pin 211 vertically extending toward the middle spacer is formed in the middle portion. In this embodiment, the first pins 211 are perpendicular to the middle portion and perpendicular to the middle spacer. The first pin 211 is formed with a first through hole 212. In this embodiment, the first pin 211 has a fish-eye structure, so that the first pin 211 has elasticity.

As shown in fig. 4, the second row of conductive terminals 22 also includes second ground terminals 220 located at both sides, each second ground terminal 220 having a pair of terminal ends, a solder tail end, and a middle portion connecting the terminal ends and the solder tail end, and a second pin 221 formed in the middle portion and extending vertically toward the middle spacer. In this embodiment, the second pins 221 are perpendicular to the middle portion and perpendicular to the middle spacer. The second pin 221 is formed with a second through hole 222 so that the second pin 221 has a fisheye structure, and thus the second pin 221 has elasticity.

As can be seen from the above description, the first row of conductive terminals 21 is substantially the same as the second row of conductive terminals 22, except that: the first row of conductive terminals 21 and the second row of conductive terminals 22 are disposed oppositely, for example: the first pins 211 are bent downward and vertically, and the second pins 221 are bent upward and vertically. The terms downward and upward are used only for describing the positions shown in the drawings, and the directional terms should not be used for limiting the scope of the present invention.

As shown in fig. 4, two symmetrical fixing holes 230 are formed at two opposite edges of the middle spacer 23, and each fixing hole 230 may simultaneously receive the corresponding first pin 211 and the second pin 221 therethrough. And the first pin 211 and the second pin 221 are arranged in a staggered manner, can be inserted into the fixing hole 230 in parallel (as shown in fig. 5), and both form an elastic interference state with the fixing hole 230, so that both the first pin 211 and the second pin 221 can be connected with the fixing hole 230 and are retained in the fixing hole 230.

In this embodiment, the first pin 211 and the second pin 221 are each formed with a

guide end

2110, 2210 of a smaller size, which is located at the end of the pin to provide a guide function when inserted into the fixing hole 230.

In this embodiment, the maximum widths of the first pin 211 and the second pin 221 are slightly larger than the fixing hole 230, and when the first pin 211 and the second pin 221 are inserted into the fixing hole 230, the first pin 211 and the second pin 221 have a fisheye structure and have moderate elasticity, so that the first pin 211 and the second pin 221 can be properly pressed in the width direction to enter the fixing hole 230 and form elastic interference with the fixing hole 230.

In addition, in this embodiment, the first row of conductive terminals 21 and the second row of conductive terminals 22 further include power terminals and signal terminals.

In summary, the USB connector 1 of the present invention ensures the connection of the first ground terminal 210, the second ground terminal 220, and the middle spacer to form a ground loop by the first pin 211 and the second pin 221 simultaneously forming an elastic interference state with the fixing hole 230. In addition, the USB connector 1 of the present invention can simplify the process and obtain a stable structure by such a fastening structure. In addition, since the USB connector 1 of the present invention does not require a spot welding process, the assembly cost is saved.

Claims

1. A USB connector, comprising: the USB connector includes:

a metal housing; and

the terminal module comprises a first row of conductive terminals, a second row of conductive terminals and a middle spacing piece, wherein the first row of conductive terminals and the second row of conductive terminals are respectively positioned on two sides of the middle spacing piece;

the first row of conductive terminals comprise first grounding terminals positioned on two side edges, and each first grounding terminal is provided with a first pin vertically extending towards the middle spacer;

the second row of conductive terminals comprises second grounding terminals positioned on two side edges, and each second grounding terminal is provided with a second pin vertically extending towards the middle spacer;

two fixing holes are formed at two opposite edges of the middle spacer, each of the fixing holes is capable of simultaneously inserting the corresponding first pin and the second pin therein, and the first pin and the second pin are capable of forming connection with the fixing holes.

2. The USB connector of claim 1, wherein: the terminal module further comprises a plastic body, wherein the middle spacer is located in the middle of the plastic body, and the plastic body wraps the first row of conductive terminals, the second row of conductive terminals and the middle spacer.

3. The USB connector of claim 1, wherein: the first pin and the second pin are arranged in a staggered mode, are inserted into the fixing holes in parallel and are elastically interfered with the fixing holes.

4. The USB connector of claim 3, wherein: the first pin and the second pin are both elastic.

5. The USB connector of claim 3, wherein: the first pin is provided with a first through hole; the second pin is provided with a second through hole.

6. The USB connector of claim 5, wherein: the first pin and the second pin are both in a fisheye structure.

7. The USB connector of claim 1, wherein: the first pin and the second pin are provided with guide ends for guiding and inserting into the fixing holes.

8. The USB connector of claim 1, wherein: the first ground terminal has a pair of terminal ends, a solder tail end, and an intermediate portion connecting the terminal ends and the solder tail end, the first pin being formed in the intermediate portion and perpendicular to the intermediate portion.

9. The USB connector of claim 1, wherein: the second ground terminal has a pair of terminal ends, a solder tail end, and an intermediate portion connecting the terminal ends and the solder tail end, and the second pin is formed in the intermediate portion perpendicular to the intermediate portion.

10. The USB connector of claim 1, wherein: the first row of conductive terminals and the second row of conductive terminals further comprise power terminals and signal terminals.