CN216145805U

CN216145805U - USB2.0 connector

Info

Publication number: CN216145805U
Application number: CN202121801821.7U
Authority: CN
Inventors: 陈福权
Original assignee: DONGGUAN YUQIU INKET ELECTRONIC SCIENCE & TECHNOLOGY CO LTD
Current assignee: DONGGUAN YUQIU INKET ELECTRONIC SCIENCE & TECHNOLOGY CO LTD
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2022-03-29
Anticipated expiration: 2031-08-03

Abstract

The utility model discloses a USB2.0 connector, which comprises a plastic seat, a terminal and a metal shell fixedly coated on the periphery of the plastic seat, wherein the plastic seat is integrally fixed outside the terminal in an in-mold injection molding mode and forms an integrated structure with the terminal, and the integrated structure is completely different from a plug-in end type structure of a conventional USB2.0 connector, so that the convenience of the assembly of the whole USB2.0 connector can be improved, the phenomenon of terminal deformation can be prevented, the quality of the USB connector is improved, the assembly production efficiency is greatly improved, and the USB connector has strong market competitiveness. The shaping of plastic seat rear end has the back seat, the pin portion of terminal stretches out in this back seat lower extreme off-plate, and the root of this pin portion is wrapped up in by the back seat to this normal position degree of guaranteeing pin portion, it can not be crooked or rock when inserting the PCB board, and in the pin portion of guaranteeing all terminals with this can once only insert the PCB board smoothly, improves assembly efficiency.

Description

USB2.0 connector

The technical field is as follows:

the utility model relates to the technical field of connector products, in particular to a USB2.0 connector.

Background art:

USB, an abbreviation for Universal Serial BUS (USB), is an external BUS standard for standardizing the connection and communication between a computer and external devices, and is an interface technology applied in the field of PCs. USB was proposed by a combination of companies such as Intel, Conjun, IBM, Microsoft, etc., at the end of 1994. The USB has high transmission speed and is very convenient to use. The USB interface also has the advantages of supporting the plug-and-play and hot plug functions of the equipment, being flexible in connection, independent in power supply and the like, can be connected with a mouse, a keyboard, a printer, a scanner, a camera, a flash disk, an MP3 player, a mobile phone, a digital camera, a mobile hard disk, an external optical floppy drive, a USB network card, an ADSL Modem, a Cable Modem and the like, almost all external equipment is provided with the USB interface, and the USB interface is very widely used.

USB2.0 connector among the prior art is spigot end formula structure, and the terminal in the USB2.0 connector is installed in the terminal hole of plastic seat through the mode of cartridge promptly, in the assembling process, causes the terminal to warp easily to influence the quality of whole USB2.0 connector, and the packaging efficiency is low, is unfavorable for improving market competition.

In view of the above, the present inventors propose the following.

The utility model has the following contents:

the utility model aims to overcome the defects of the prior art and provides a USB2.0 connector.

In order to solve the technical problems, the utility model adopts the following technical scheme: the USB2.0 connector comprises a plastic seat, a terminal and a metal shell fixedly wrapped on the periphery of the plastic seat, wherein the plastic seat is integrally fixed outside the terminal in an in-mold injection molding mode and forms an integral structure with the terminal; the rear end of the plastic seat is formed with a rear seat, the pin part of the terminal extends out of the lower end surface of the rear seat, and the root of the pin part is wrapped by the rear seat.

Furthermore, in the above technical solution, a tongue plate is formed at the front end of the plastic seat, the tongue plate is provided with a window penetrating through the upper and lower end faces of the tongue plate, the contact arm of the terminal extends into the window, and the raised portion of the contact arm extends out of the lower end face of the tongue plate through the window.

Furthermore, in the above technical solution, a first heightening convex strip and a second heightening convex strip are respectively formed on two sides of the lower end surface of the rear seat.

Furthermore, in the above technical solution, two sides of the middle of the metal shell are respectively stamped and bent to form a first solder leg and a second solder leg; and the two sides of the rear end of the metal shell are respectively stamped and bent to form a third welding leg and a fourth welding leg, and the third welding leg and the fourth welding leg are respectively arranged on the two sides of the rear seat.

Furthermore, in the above technical solution, a first strip-shaped protrusion and a second strip-shaped protrusion for increasing the insertion and extraction force are formed on the upper side of the front end of the metal shell by stamping, and both the first strip-shaped protrusion and the second strip-shaped protrusion protrude into the metal shell.

Furthermore, in the above technical solution, a plurality of first force arms are formed at the lower side of the front end of the metal shell by stamping, and the end parts of the first force arms extend into the metal shell; and the two sides of the metal shell are stamped to form second force arms, and the ends of the second force arms extend into the metal shell.

Further, in the above technical solution, a plurality of first positioning bumps are formed on the upper end surface of the rear seat; a second positioning lug and a third positioning lug are respectively formed on two sides of the rear seat; the metal shell comprises a metal shell and is characterized in that a first limiting groove matched with the first positioning lug is formed in the upper edge of the rear end of the metal shell, a second limiting groove and a third limiting groove matched with the second positioning lug and the third positioning lug respectively are formed in the edges of two sides of the rear end of the metal shell, and the first positioning lug, the second positioning lug and the third positioning lug are clamped and positioned in the first limiting groove, the second limiting groove and the third limiting groove respectively.

Further, in the above technical solution, both sides of the front ends of the first positioning protruding block, the second positioning protruding block, and the third positioning protruding block are provided with inclined guide surfaces.

Furthermore, in the above technical solution, the upper and lower inner walls of the second limiting groove are formed with first locking protrusions, and the first locking protrusions are in contact with the upper and lower end faces of the second positioning protrusion; and second clamping protrusions are formed on the upper inner wall and the lower inner wall of the third limiting groove and are in contact with the upper end face and the lower end face of the third positioning lug.

Further, in the above technical solution, a first groove body and a second groove body are arranged on the rear side of the lower end of the plastic seat; and a first riveting sheet and a second riveting sheet are formed on the lower side of the rear end of the metal shell and are respectively pressed into the first groove body and the second groove body.

After adopting the technical scheme, compared with the prior art, the utility model has the following beneficial effects: the plastic seat is integrally fixed outside the terminal in an in-mold injection molding mode, and forms an integrated structure with the terminal, which is completely different from a plug-end type structure of a conventional USB2.0 connector, so that the convenience of the assembly of the whole USB2.0 connector can be improved, the terminal deformation phenomenon can be prevented, the quality of the USB2.0 connector is improved, the assembly production efficiency is greatly improved, and the high-performance USB2.0 connector has strong market competitiveness. In addition, the pin parts of the terminals extend out of the lower end face of the rear seat, and the root parts of the pin parts are wrapped by the rear seat, so that the rightness of the pin parts is ensured, the pin parts cannot be inclined or rocked when being inserted into a PCB (printed circuit board), the pin parts of all the terminals can be smoothly inserted into the PCB at one time, and the assembly efficiency is improved.

Description of the drawings:

FIG. 1 is a perspective view of a first perspective of the present invention;

FIG. 2 is a perspective view of the present invention from a second perspective;

FIG. 3 is an exploded view of the present invention;

fig. 4 is a perspective view of the present invention with the metal shell removed.

The specific implementation mode is as follows:

the utility model is further illustrated below with reference to specific embodiments and the accompanying drawings.

As shown in fig. 1-4, the USB2.0 connector includes a plastic base 1, a terminal 2, and a metal shell 3 fixedly wrapped around the plastic base 1, wherein the plastic base 1 is integrally fixed outside the terminal 2 by an in-mold injection molding method, and forms an integral structure with the terminal 2; the rear end of the plastic seat 1 is formed with a rear seat 11, the pin part 21 of the terminal 2 extends out of the lower end surface of the rear seat 11, and the root of the pin part 21 is wrapped by the rear seat 11. The plastic seat 1 is integrally fixed outside the terminal 2 in an in-mold injection molding mode, and forms an integrated structure with the terminal 2, which is completely different from a plug-end type structure of a conventional USB2.0 connector, so that the convenience of the assembly of the whole USB2.0 connector can be improved, the phenomenon of terminal deformation can be prevented, the quality of the USB2.0 connector is improved, the assembly production efficiency is greatly improved, and the USB2.0 connector has strong market competitiveness. In addition, the pin part 21 of the terminal 2 extends out of the lower end surface of the rear seat 11, and the root part of the pin part 21 is wrapped by the rear seat 11, so that the rightness of the pin part 21 is ensured, the pin part cannot be inclined or shaken when being inserted into a PCB (printed circuit board), the pin parts of all terminals can be successfully inserted into the PCB at one time, and the assembly efficiency is improved.

A tongue plate 12 is formed at the front end of the plastic seat 1, and an opposite insertion space for inserting a plug is formed between the metal shell 3 and the tongue plate 12.

The tongue plate 12 is provided with a window 121 penetrating through the upper and lower end faces thereof, the contact arm 22 of the terminal 2 extends into the window 121, and the bulge 221 of the contact arm 22 extends out of the lower end face of the tongue plate 12 through the window 121, so that the bulge 221 of the contact arm 22 can be stably contacted with the terminal in the plug inserted into the opposite insertion space, thereby realizing stable data transmission. Furthermore, after the bump 221 contacts with the terminal of the plug, the contact arm 22 will be received in the window 121, and since the window 121 penetrates the upper and lower end faces of the tongue plate 12, the window 121 has enough space for the contact arm 22 to move up and down, thereby preventing the contact arm 22 from deforming because there is not enough space for the contact arm 22 to move up and down.

A first elevation convex strip 111 and a second elevation convex strip 112 are respectively formed on two sides of the lower end face of the rear seat 11. The first elevation convex strip 111 and the second elevation convex strip 112 function as: after the utility model is installed on a PCB, the pin part 21 of the lower end surface of the back seat 11 is inserted into the PCB, the lower end surfaces of the first raising convex strip 111 and the second raising convex strip 112 are both contacted with the PCB, so that a certain interval is formed between the lower end surface of the back seat 11 and the PCB, and air convection is formed through the interval in the reflow soldering process at the later stage, thereby being beneficial to providing reflow soldering quality and enabling the soldering tin forming quality between the pin part 21 and the PCB to be higher.

Two sides of the middle part of the metal shell 3 are respectively stamped and bent to form a first welding leg 31 and a second welding leg 32; the two sides of the rear end of the metal shell 3 are respectively stamped and bent to form a third welding leg 33 and a fourth welding leg 34, the third welding leg 33 and the fourth welding leg 34 are respectively arranged on the two sides of the rear seat 11, and the USB2.0 connector can be stably assembled on a PCB board by inserting the four welding legs of the first welding leg 31, the second welding leg 32, the third welding leg 33 and the fourth welding leg 34 into the PCB board.

A first bar-shaped protrusion 35 and a second bar-shaped protrusion 36 for increasing the insertion and extraction force are formed on the upper side of the front end of the metal shell 3 by punching, the first bar-shaped protrusion 35 and the second bar-shaped protrusion 36 both protrude into the metal shell 3, and the first bar-shaped protrusion 35 and the second bar-shaped protrusion 36 are used for abutting against an inserted plug, so that the insertion and extraction force is increased. In addition, a plurality of first force arms 37 are formed on the lower side of the front end of the metal shell 3 in a stamping mode, and the end parts of the first force arms 37 extend into the metal shell 3; the second force arm 38 is formed on both sides of the metal shell 3 by punching, and the end of the second force arm 38 extends into the metal shell 3, so that the interference of the plug which is clamped and inserted all around is realized, the insertion and extraction force is increased, and the plug can be stably inserted into the USB2.0 connector. In addition, the second force arms 38 on both sides of the metal shell 3 extend from front to back, i.e. the back ends of the second force arms 38 are free ends, so as to prevent the inserted plug from directly inserting and turning over the second force arms 38.

A plurality of first positioning lugs 113 are formed on the upper end surface of the rear seat 11; a second positioning lug 114 and a third positioning lug 115 are respectively formed on two sides of the rear seat 11; a first limiting groove 301 matched with the first positioning bump 113 is formed at the upper edge of the rear end of the metal shell 3, a second limiting groove 302 and a third limiting groove 303 matched with the second positioning bump 114 and the third positioning bump 115 are formed at the two side edges of the rear end of the metal shell 3 respectively, and the first positioning bump 113, the second positioning bump 114 and the third positioning bump 115 are clamped and positioned in the first limiting groove 301, the second limiting groove 302 and the third limiting groove 303 respectively, so that the metal shell 3 is ensured to be stably installed outside the plastic seat 1, and the structure is extremely firm. In order to further enhance the stability of the assembly of the metal shell 3 and the plastic seat 1, the following design is made: a first groove body 13 and a second groove body 15 are arranged on the rear side of the lower end of the plastic seat 1; a first riveting sheet 391 and a second riveting sheet 392 are formed at the lower side of the rear end of the metal shell 3, and the first riveting sheet 391 and the second riveting sheet 392 are respectively pressed into the first groove body 13 and the second groove body 15.

The first positioning protrusion 113, the second positioning protrusion 114 and the third positioning protrusion 115 are provided with inclined guide surfaces at both sides of the front ends thereof, which facilitates the insertion of the metal shell.

The upper and lower inner walls of the second limiting groove 302 are formed with first locking protrusions, and the first locking protrusions are in contact with the upper and lower end faces of the second positioning protrusion 114; the upper and lower inner walls of the third limiting groove 303 are formed with second protrusions, which contact the upper and lower end surfaces of the third positioning protrusion 115, so as to further enhance the stability of the assembly of the metal shell 3 and the plastic seat 1.

In summary, the plastic seat 1 of the present invention is integrally fixed to the outside of the terminal 2 by an in-mold injection molding manner, and forms an integrated structure with the terminal 2, which is completely different from the plug-end structure of the conventional USB2.0 connector, so that the convenience of the assembly of the entire USB2.0 connector can be improved, and the terminal deformation can be prevented, thereby improving the quality of the USB2.0 connector, and simultaneously, the assembly production efficiency is greatly improved, so that the present invention has strong market competitiveness. In addition, the pin part 21 of the terminal 2 extends out of the lower end surface of the rear seat 11, and the root part of the pin part 21 is wrapped by the rear seat 11, so that the rightness of the pin part 21 is ensured, the pin part cannot be inclined or shaken when being inserted into a PCB (printed circuit board), the pin parts of all terminals can be successfully inserted into the PCB at one time, and the assembly efficiency is improved.

It should be understood that the above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.

Claims

USB2.0 connector, it includes plastic seat (1), terminal (2) and fixed cladding in plastic seat (1) outlying metal-back (3), its characterized in that: the plastic seat (1) is integrally fixed outside the terminal (2) in an in-mold injection molding mode and forms an integral structure with the terminal (2); the rear end of the plastic seat (1) is formed with a rear seat (11), the pin part (21) of the terminal (2) extends out of the lower end surface of the rear seat (11), and the root of the pin part is wrapped by the rear seat (11).
2. The USB2.0 connector of claim 1, wherein: the front end of the plastic seat (1) is formed with a tongue plate (12), the tongue plate (12) is provided with a window (121) penetrating through the upper end face and the lower end face of the tongue plate, a contact arm (22) of the terminal (2) extends into the window (121), and a bulge part (221) of the contact arm (22) penetrates through the window (121) and extends out of the lower end face of the tongue plate (12).
3. The USB2.0 connector of claim 1, wherein: and a first heightening convex strip (111) and a second heightening convex strip (112) are respectively formed on two sides of the lower end surface of the rear seat (11).
4. The USB2.0 connector of any one of claims 1-3, wherein: two sides of the middle part of the metal shell (3) are respectively stamped and bent to form a first welding leg (31) and a second welding leg (32); and both sides of the rear end of the metal shell (3) are respectively stamped and bent to form a third welding leg (33) and a fourth welding leg (34), and the third welding leg (33) and the fourth welding leg (34) are respectively arranged on both sides of the rear seat (11).
5. The USB2.0 connector of any one of claims 1-3, wherein: the upper side of the front end of the metal shell (3) is punched to form a first strip-shaped protrusion (35) and a second strip-shaped protrusion (36) which are used for increasing the insertion and extraction force, and the first strip-shaped protrusion (35) and the second strip-shaped protrusion (36) protrude into the metal shell (3).
6. The USB2.0 connector of claim 5, wherein: a plurality of first force arms (37) are formed on the lower side of the front end of the metal shell (3) in a stamping mode, and the end parts of the first force arms (37) extend into the metal shell (3); and second force arms (38) are formed on two sides of the metal shell (3) in a stamping mode, and the end parts of the second force arms (38) extend into the metal shell (3).
7. The USB2.0 connector of any one of claims 1-3, wherein: a plurality of first positioning lugs (113) are formed on the upper end surface of the rear seat (11); a second positioning lug (114) and a third positioning lug (115) are respectively formed on two sides of the rear seat (11); the metal shell (3) rear end upper edge shaping has first spacing groove (301) with first locating lug (113) adaptation, metal shell (3) rear end both sides edge shaping respectively has second spacing groove (302) and third spacing groove (303) with second locating lug (114) and third locating lug (115) adaptation, first locating lug (113), second locating lug (114) and third locating lug (115) are held the card respectively and are positioned in this first spacing groove (301), second spacing groove (302) and third spacing groove (303).
8. The USB2.0 connector of claim 7, wherein: inclined guide surfaces are arranged on two sides of the front ends of the first positioning convex block (113), the second positioning convex block (114) and the third positioning convex block (115).
9. The USB2.0 connector of claim 7, wherein: the upper inner wall and the lower inner wall of the second limiting groove (302) are both formed with first clamping protrusions, and the first clamping protrusions are in contact with the upper end face and the lower end face of the second positioning bump (114); and second clamping protrusions are formed on the upper inner wall and the lower inner wall of the third limiting groove (303), and are in contact with the upper end face and the lower end face of the third positioning bump (115).
10. The USB2.0 connector of claim 7, wherein: a first groove body (13) and a second groove body (15) are arranged on the rear side of the lower end of the plastic seat (1); a first riveting sheet (391) and a second riveting sheet (392) are formed on the lower side of the rear end of the metal shell (3), and the first riveting sheet (391) and the second riveting sheet (392) are pressed into the first groove body (13) and the second groove body (15) respectively.