CN110875554A

CN110875554A - A kind of interface unit

Info

Publication number: CN110875554A
Application number: CN201811017978.3A
Authority: CN
Inventors: 付小波; 刘文涛; 吴后甜
Original assignee: Shenzhen Luxshare Precision Industry Co Ltd
Current assignee: Luxshare Precision Industry Co Ltd
Priority date: 2018-09-03
Filing date: 2018-09-03
Publication date: 2020-03-10

Abstract

The invention relates to the field of hot plugging and discloses a connector, which comprises an insulator, a conductive terminal and a metal shell, wherein the conductive terminal is accommodated in the insulator, the metal shell coats the insulator, one end of the connector is connected with a connecting wire, the other end of the connector is connected with external electronic equipment in a pluggable mode, the conductive terminal comprises a grounding terminal, the grounding terminal is located at the edge of the connector, and a connecting sheet which is electrically conducted with the grounding terminal and is fixedly connected with the grounding terminal is arranged on the metal shell. The metal shell of the connector is provided with the connecting sheet, and the connecting sheet is directly connected with the grounding terminal without weaving an external bare grounding wire and a backward turning riveting iron shell.

Description

A kind of interface unit

Technical Field

The invention relates to the field of hot plugging, in particular to a connector.

Background

A Universal Serial Bus (USB) interface is a standard input/output interface, and is widely used in the design of many electronic devices. In 1994, the USB association (USB-IF) was established by a union of many world-wide computer and communication companies, and the USB specification was initially established. The USB association has released versions 1.0, 1.1, 2.0, and 3.0 so far, and the aforementioned versions 1.0, 1.1, and 2.0 support the following three signal transmission rates, respectively: (1) the low-speed mode transmission rate is 1.5 Mbit per second, and the low-speed mode transmission rate is mainly used for a mouse and a keyboard; (2) a full-speed mode transmission rate of 12 megabits per second; (3) the high speed mode transmission rate is 480 megabits per second. The version 3.0 is an overspeed mode with a transmission rate of 640 megabits per second, and a plurality of electronic products adopt a USB3.0 interface at present.

The conductive terminal in the USB plug comprises a power terminal, a differential signal terminal, a grounding terminal and the like, the grounding terminal is electrically conducted with the metal shell of the USB plug, and the traditional mode is that the electric conduction is realized by weaving an outer bare grounding wire and then turning over and riveting an iron shell. This method is labor intensive, costly, and not conducive to the compact size of the USB plug.

Therefore, a connector is needed to solve the above technical problems.

Disclosure of Invention

The invention aims to provide a connector, wherein a metal shell of the connector is directly connected with a grounding terminal.

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

the utility model provides a connector, its include the insulator, accept in conductive terminal and cladding in the insulator the metal casing of insulator, connector one end is connected with the connecting wire, but the other end and external electronic equipment plug are connected, conductive terminal includes ground terminal, ground terminal is located the edge of connector, be provided with on the metal casing with ground terminal electric conductance and fixed connection's connection piece.

The metal casing of the connector is provided with the connecting sheet, the connecting sheet is directly connected with the grounding terminal, the outer bare grounding wire and the rear turning riveting iron shell are not required to be woven, the connection mode is simple to process, the labor consumption is reduced, the processing cost is reduced, the extra space is not occupied, and the connector is convenient to develop towards miniaturization.

Preferably, the connecting piece is located at one side close to the ground terminal and one end close to the connecting wire, and the connecting piece is connected with one end of the ground terminal close to the connecting wire.

Preferably, the connecting piece includes a first abutting portion and a connecting portion connecting the first abutting portion and the metal shell, and the first abutting portion is connected with one end of the ground terminal close to the connecting wire.

Preferably, the first abutting portion and one end of the ground terminal close to the connection line are connected by welding.

Preferably, the first abutting portion and one end of the ground terminal close to the connection line are connected by adhesion.

Preferably, the connecting piece is formed by stamping and bending.

Preferably, a clamp matched with the connecting wire is arranged at one end, close to the connecting wire, of the metal shell.

Preferably, one end of the metal shell, which is close to the connecting wire, is wrapped with an insulating sleeve, and one end of the connecting wire, which is close to the metal shell, and the clamp are both wrapped in the insulating sleeve.

Preferably, an insulating medium is filled between the metal shell and the insulator at one end of the metal shell close to the connecting wire.

Preferably, the insulating sleeve and the insulating medium are integrally injection-molded.

The invention has the beneficial effects that: the metal casing of the connector is provided with the connecting sheet, the connecting sheet is directly connected with the grounding terminal, the outer bare grounding wire and the rear turning riveting iron shell are not required to be woven, the connection mode is simple to process, the labor consumption is reduced, the processing cost is reduced, the extra space is not occupied, and the connector is convenient to develop towards miniaturization.

Drawings

FIG. 1 is a schematic view of the construction of a connector provided by the present invention;

FIG. 2 is a schematic structural diagram of a metal housing provided by the present invention;

FIG. 3 is a schematic view of the internal structure of the connector provided by the present invention (excluding the metal shell);

fig. 4 is a schematic structural diagram of the conductive terminal provided in the present invention.

In the figure: 1. an insulator; 11. a first insulating block; 12. a second insulating block; 121. a limiting bulge;

21. a ground terminal; 211. a second abutting portion; 212. welding the part; 22. a power supply terminal; 23. differential signal terminals;

3. a metal housing; 31. connecting sheets; 311. a first abutting portion; 312. a connecting portion; 32. clamping a hoop; 321. a first clamp portion; 322. a second clamp portion; 33. and a limiting hole.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1 to 4, the present embodiment discloses a connector including an insulator 1, a conductive terminal housed in the insulator 1, and a metal shell 3 covering the insulator 1. One end of the connector is connected with a connecting wire, and the other end of the connector is connected with the external electronic equipment in a pluggable mode. The conductive terminals include a ground terminal 21, a power terminal 22, and a differential signal terminal 23. The ground terminal 21 is located at the edge of the connector, and the metal shell 3 is provided with a connecting piece 31 electrically conducted and fixedly connected with the ground terminal 21.

Be provided with connection piece 31 on metal casing 3 of this connector, directly be connected with ground terminal 21 through connection piece 31, need not to weave outer naked earth connection and turn over the riveting iron shell after with, this kind of connected mode processing is simple, has reduced artificial consumeing, has also reduced the processing cost simultaneously to do not occupy extra space, the connector of being convenient for is to miniaturized development.

As shown in fig. 1 and 2, the metal shell 3 is provided with a notch at a position corresponding to the welding portion 212 of the ground terminal 21, that is, the notch is located at one side of the metal shell 3 close to the ground terminal 21 and close to one end of the connecting wire. The connecting piece 31 is disposed at the notch. The connecting piece 31 is formed integrally with the metal shell 3 by a stamping and bending process. The connecting piece 31 includes a first abutting portion 311 and a connecting portion 312 connecting the first abutting portion 311 and the metal shell 3. The connection portion 312 is a portion of the connection piece 31 that is bent by 90 ° toward the inside of the metal case 3 as a whole, and the first contact portion 311 is a portion of the connection piece 31 that is bent by 90 ° toward the outside at the end thereof. The first abutting portion 311 can increase the contact area with the ground terminal 21, facilitate the fixed connection therebetween, and ensure the electrical conductivity therebetween. In order to facilitate connection with the first contact portion 311, the end of the ground terminal 21 where the welding portion 212 is provided branches into a second contact portion 211 (specifically, as shown in fig. 3 and 4), the second contact portion 211 is located at the edge of the first insulating block 11, and the connecting piece 31 is bent inward, i.e., can contact the second contact portion 211. The second abutting portion 211 and the soldering portion 212 of the ground terminal 21 are arranged at an interval, and the first abutting portion 311 and the second abutting portion 211 are arranged at an interval, so that when the first abutting portion 311 and the second abutting portion 211 are connected, the connection between the soldering portion 212 of the ground terminal 21 and the PCB board or the lead wire is not damaged, and the connection between the first abutting portion 311 and the second abutting portion 211 is not affected by the connection between the soldering portion 212 of the ground terminal 21 and the PCB board or the lead wire.

As shown in fig. 3 and 4, the insulator 1 includes a first insulating block 11 and a second insulating block 12, and the second insulating block 12 and the first insulating block 11 are respectively located at upper and lower sides of the conductive terminal. The ground terminal 21 is located on one side of the connector, the power terminal 22 is located on the other side of the connector, and the differential signal terminal 23 is located between the ground terminal 21 and the power terminal 22. The power terminal 22 and the differential signal terminal 23 each include a soldering portion 212, a fixing portion, and an abutting portion connected in this order, and the soldering portion 212 is located at one end near the connection line. Each of the ground terminals 21 includes a soldering portion 212, a fixing portion and an abutting portion connected in sequence, and a second abutting portion 211 is further branched from one end of the soldering portion 212 of the ground terminal 21. The conductive terminals can be directly connected with corresponding wires in the connecting wires through welding or connected with the connecting wires through a PCB. That is, the soldering portion 212 of the conductive terminal is directly soldered to the conductive wire or soldered to the PCB. After the connector is inserted into the external electronic device, the interference part is abutted with the corresponding terminal of the external electronic device, so that the connector and the external electronic device are electrically conducted. The first insulating block 11 is provided with a groove matched with the conductive terminal, and the conductive terminal is placed in the groove. Be provided with the joint recess on the 11 pieces of first insulation, it is protruding to be provided with the joint on the second insulating block 12, then 12 locks of second insulating block on first insulating block 11, through the bellied cooperation of joint recess and joint, with the two fixed connection. The bottom surface of the second insulating block 12 abuts against the fixing portion of the conductive terminal, so that the conductive terminal is fixed on the first insulating block 11.

With reference to fig. 1, after the metal shell 3 covers the insulator 1, the first contact portion 311 contacts the second contact portion 211, and in order to avoid the risk of the first contact portion 311 being disconnected from the second contact portion 211 during the molding process, the first contact portion 311 and the second contact portion 211 are welded and fixed by soldering in the present embodiment. In other embodiments, the first abutting portion 311 and the second abutting portion 211 may be fixed by adhering with a conductive adhesive, or may be fixed by fixing the first abutting portion 311 and the second abutting portion 211 to each other so that they can be electrically connected to each other.

Limiting protrusions 121 are arranged on one side, away from the first insulating block 11, of the second insulating block 12, and preferably two limiting protrusions 121 are arranged in the embodiment. The metal shell 3 is provided with the limiting hole 33 matched with the limiting protrusion 121, so that when the metal shell 3 coats the insulator 1, the insulator 1 can be prevented from being displaced forwards (namely, the end far away from the connecting line).

One end of the metal shell 3 close to the connecting line is provided with a clamp 32 matched with the connecting line. The clamp 32 includes a first clamp portion 321 and a second clamp portion 322, and the first clamp portion 321 includes an arc plate matched with the connection line and fixing wings connected to both ends of the arc plate. Second clamp portion 322 is the arc with connecting wire assorted, and after metal casing 3 assembled, first clamp portion 321 and second clamp portion 322 all clad on the connecting wire, two stationary vanes of the first clamp portion 321 of incurvature make it be fixed in the outside of second clamp portion 322 to fix the connecting wire between first clamp portion 321 and second clamp portion 322.

The one end cladding that metal casing 3 is close to the connecting wire has insulating cover, and the one end and the clamp 32 that the connecting wire is close to metal casing 3 all wrap in insulating cover. At one end of the metal shell 3 close to the connecting line, an insulating medium is filled between the metal shell 3 and the insulator 1, and the same insulating medium is filled between the metal shell 3 and the connecting line, that is, the space inside the end of the metal shell 3 close to the connecting line, which is not occupied by the insulator 1 and the connecting line, is filled with the insulating medium. The insulating sleeve and the insulating medium are made of plastic. After the metal shell 3 is assembled, the connector is placed in an injection mold, plastic is injected into a mold cavity, and the insulating sleeve and the insulating medium are integrally molded through injection. The two are integrally formed, so that the welding parts of the conductive terminals can be coated and fixed, and the connection strength of the connecting wire and the connector can be improved.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a connector, its include insulator (1), accept in conductive terminal and cladding in insulator (1) metal casing (3) of insulator (1), connector one end is connected with the connecting wire, but the other end and external electronic equipment plug are connected, its characterized in that, conductive terminal includes ground terminal (21), ground terminal (21) are located the edge of connector, be provided with on metal casing (3) with ground terminal (21) electric conduction and fixed connection's connection piece (31).

2. The connector according to claim 1, wherein the connecting piece (31) is located on a side close to the ground terminal (21) and close to one end of the connecting wire, and the connecting piece (31) is connected to the ground terminal (21) at the end close to the connecting wire.

3. The connector according to claim 1, wherein the connecting piece (31) includes a first abutting portion (311) and a connecting portion (312) connecting the first abutting portion (311) and the metal shell (3), and the first abutting portion (311) is connected to one end of the ground terminal (21) near the connecting wire.

4. The connector according to claim 3, wherein the first abutting portion (311) is connected to an end of the ground terminal (21) near the connection line by soldering.

5. The connector according to claim 3, wherein the first abutting portion (311) is connected to an end of the ground terminal (21) near the connection line by adhesion.

6. Connector according to claim 1, characterized in that the connecting piece (31) is formed by stamping and bending.

7. Connector according to claim 1, characterized in that the metal shell (3) is provided with a collar (32) near one end of the connection line for cooperation with the connection line.

8. Connector according to claim 7, characterized in that the end of the metal shell (3) close to the connection line is covered with an insulating sleeve, and the end of the connection line close to the metal shell (3) and the clamping band (32) are both covered with the insulating sleeve.

9. Connector according to claim 8, characterized in that at the end of the metal shell (3) close to the connection line, an insulating medium is filled between the metal shell (3) and the insulator (1).

10. The connector of claim 9, wherein the insulating sleeve is injection molded integrally with the insulating medium.