CN214411571U

CN214411571U - Electrical connector

Info

Publication number: CN214411571U
Application number: CN202120620860.0U
Authority: CN
Inventors: 陈昌耀; 吴祝平; 方志宏
Original assignee: Drapho Electronics Technology Co ltd
Current assignee: Drapho Electronics Technology Co ltd
Priority date: 2021-03-27
Filing date: 2021-03-27
Publication date: 2021-10-15
Anticipated expiration: 2031-03-27

Abstract

The utility model provides an electric connector, including insulator, accept in insulator terminal module and cladding in insulator outlying metal casing subassembly, the metal casing subassembly be equipped with a pair of horizontal extension of being and with a circuit board welded connection's lower mounting panel, the surface of lower mounting panel is equipped with the orientation the protruding stretch of circuit board and butt in arch on the circuit board. Compared with the prior art, the utility model discloses an increase the arch between the contact surface of metal casing subassembly and circuit board for contact between them has been improved into the point contact by traditional face contact, thereby has made the easy management and control of plane degree, reduces the processing procedure management and control degree of difficulty, and when Surface Mounting (SMT), the interference design of protruding accessible and circuit board makes the installation end of terminal module laminate better with the circuit board, reduces the empty welding risk of terminal and circuit board, has improved the reliability of product.

Description

Electrical connector

Technical Field

The utility model relates to an electric connection field especially relates to an electric connector.

Background

In the field of electrical transmission, an electrical connector plays an important role in signal transmission, and a common electrical connector includes an insulating body and a conductive terminal, and in some scenarios with high requirements for signal transmission quality, the electrical connector usually needs to be equipped with a metal shell to achieve the effect of shielding interference signals, and also to increase the strength of the electrical connector. With common USB connector, it has the cladding at insulator outlying metal casing, this metal casing can carry out welded fastening with the circuit board, thereby install the electric connector on the circuit board firm, guarantee reliable electric connection between the two, and in some heavy plate type's USB products, metal casing's both sides can directly overlap joint on the circuit board, and in the current design, the bottom surface of metal casing both sides is the plane, this makes direct circuit board surface emergence surface contact because of receiving the centrobaric influence of product in SMT technology, the mode of surface contact can make the plane degree be wayward, the processing procedure management and control degree of difficulty has been increased, and also very easy jack-up conductive terminal, thereby influence conductive terminal's welding, there is the risk of empty welding.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electric connector to the difficult problem of plane degree when improving among the prior art terminal and circuit board welding.

In order to solve the technical problem, the utility model adopts the following technical scheme: an electric connector comprises an insulating body, a terminal module contained in the insulating body and a metal shell assembly coated on the periphery of the insulating body, wherein the metal shell assembly is provided with a pair of lower mounting plates which extend horizontally and are connected with a circuit board in a welding mode, and the surface of each lower mounting plate is provided with a bulge facing the circuit board and protruding to extend and abut against the circuit board.

Further, the metal shell assembly comprises an inner shell installed on the insulating body and an outer shell coated on the surface of the inner shell, the outer shell comprises an upper cover and a lower cover which are in lap joint with each other, and the upper cover and the lower cover are respectively covered on the upper side and the lower side of the inner shell.

Furthermore, the upper cover is provided with an inverted U-shaped top cover plate, a pair of upper mounting plates horizontally extending from two sides of the top cover plate, and a rear baffle formed by bending and extending downwards from the rear side of the top cover plate.

Further, the lower cover is provided with a U-shaped bottom cover plate, the lower mounting plate extends horizontally from two sides of the bottom cover plate, and the lower mounting plate and the upper mounting plate are arranged in an up-and-down corresponding mode.

Furthermore, the inner shell surrounds the periphery of the insulating body and is provided with a top wall, a bottom wall and a pair of arc-shaped side walls, and the rear end of the top wall is provided with an L-shaped mounting arm extending downwards.

Furthermore, the rear baffle plate is integrally connected with the rear side edge of the top cover plate, welding pins protruding downwards are arranged at two ends of the rear baffle plate, and the welding pins and the L-shaped mounting arm are adjacently arranged in the front and at the back.

Further, the inner housing is interposed between the top cover plate and the bottom cover plate.

Furthermore, the upper mounting plate and the lower mounting plate are both provided with a mounting hole fixedly mounted with the circuit board.

Furthermore, each lower mounting plate is provided with at least two bulges.

Further, the lower mounting plate is interposed between the top cover plate and the bottom cover plate in a vertical direction.

Compared with the prior art, the utility model discloses an increase the arch between the contact surface of metal casing subassembly and circuit board for contact between them has been improved into the point contact by traditional face contact, thereby has made the easy management and control of plane degree, reduces the processing procedure management and control degree of difficulty, and when Surface Mounting (SMT), the interference design of protruding accessible and circuit board makes the installation end of terminal module laminate better with the circuit board, reduces the empty welding risk of terminal and circuit board, has improved the reliability of product.

Drawings

Fig. 1 is a perspective assembly view of the electrical connector of the present invention.

Fig. 2 is an exploded perspective view of the electrical connector of the present invention.

Fig. 3 is a schematic view of the installation of the lower cover and the circuit board of the electrical connector of the present invention.

Detailed Description

Referring to fig. 1 to 3, the present invention provides an electrical connector 100, which includes: the insulating body 10, accommodate the terminal module 20 in the insulating body 10 and the metal casing subassembly 30 of cladding on the insulating body 10, the metal casing subassembly 30 will the insulating body 10 and the terminal module 20 wrap up in it, increase the bulk strength of product, also be used for simultaneously with circuit board welded connection, make the product can stabilize reliable fixing on the circuit board.

As shown in fig. 2, the insulating housing 10 has a base 11 and a tongue 12 protruding forward from the base 11, and the base 11 is used for being fixedly connected to the metal housing assembly 30. The surface of the tongue plate 12 is used to carry and distribute the terminal modules 20 so as to be electrically connected to the electrical connector at the mating end. The terminal module 20 is fixed inside the insulating body 10, the front end of the terminal module 20 is a contact end 21 distributed on the top surface and the bottom surface of the tongue plate 12, and the rear end of the terminal module 20 is a mounting end 22 extending from the rear end of the insulating body 10 for being soldered and mounted on a circuit board 200.

The metal housing assembly 30 includes an inner housing 310 mounted on the insulation body 10 and an outer housing 320 covering the surface of the inner housing 310, and the structures of the inner housing 310 and the outer housing 320 are described in detail below.

The inner housing 310 is a closed ring structure, and surrounds the docking tongue plate 12, so as to form a plugging cavity for the docking end electrical connector to insert into, and the inner housing 310 is provided with a top wall 311, a bottom wall 312 and a pair of arc-shaped side walls 313, the top wall 311 is provided with an elastic sheet 314 protruding downwards into the plugging cavity, and the elastic sheet 314 is used for abutting against the docking end electrical connector to increase the plugging force with the docking end electrical connector; the rear end of the top wall 311 is provided with an L-shaped mounting arm 315 extending downward for being soldered to the circuit board 200, and the mounting arm 315 is located at the rear side of the side wall 313 and is spaced apart from the side wall 313.

The outer housing 320 includes an upper cover 321 and a lower cover 322 overlapping each other, and the upper cover 321 and the lower cover 322 cover the upper and lower sides of the inner housing 310 respectively, specifically, the upper cover 321 covers the surface of the top wall 311 of the inner housing 310, and the lower cover 322 covers the surface of the bottom wall 312 of the inner housing 310. The upper cover 321 is provided with an inverted U-shaped top cover plate 323, a pair of upper mounting plates 324 extending horizontally from two sides of the top cover plate 323, and a rear baffle 325 formed by bending and extending downward from the rear side of the top cover plate 323, the top cover plate 323 covers the top surface of the inner housing 310, and the top cover plate 323 is provided with a through hole 326; the upper mounting plate 324 is in a flat plate shape, mounting holes 327 are formed in the surface of the upper mounting plate 324, the upper mounting plate 324 is located on two sides of the top cover plate 323 and integrally connected with the top cover plate 323, the upper mounting plate 324 is lower than the top surface of the top cover plate 323 in the vertical direction, and the upper mounting plate 324 is located on the outer side of the arc-shaped side wall 313 of the inner housing 310; the back baffle 325 is integrally connected with the rear side edge of the top cover plate 323, the back baffle is shielded at the rear side of the terminal module 20 to play a certain role in protection and shielding, and the two ends of the back baffle 325 are provided with welding pins 328 protruding downwards for being welded with the circuit board 200, the welding pins 328 are adjacent to the L-shaped mounting arm 315 in the front and back direction and are located at the rear side of the L-shaped mounting arm 315. The structure of the lower cover 322 is substantially similar to that of the upper cover 321, and is provided with a U-shaped bottom cover plate 329 and a pair of lower mounting plates 330 horizontally extending from two sides of the bottom cover plate 329, the bottom cover plate 329 covers the surface of the bottom wall 312 of the inner housing 310, preferably, the bottom cover plate 329 can be fixedly connected with the inner housing 310 by spot welding, the lower mounting plates 330 are arranged corresponding to the upper mounting plates 324 of the upper cover 321, mounting holes 327 are also formed in the surface of the lower mounting plates 330, and the mounting holes 327 of the lower mounting plates 330 and the mounting holes 327 of the upper mounting plates 324 are arranged corresponding up and down, so that the upper mounting plates 324 and the lower mounting plates 330 can be simultaneously fixed on the circuit board 200 by fixing members such as bolts and nuts.

It should be noted that, in the preferred embodiment of the present invention, at least two protrusions 331 are disposed on the bottom surface of the lower mounting plate 330 of the lower cover 322, and as shown in fig. 3, the protrusions 331 protrude from the bottom surface of the lower mounting plate 330 toward the circuit board 200 and finally abut against the surface of the circuit board 200. The protrusions 331 are formed by stamping and distributed on one side of the mounting holes 327. The protrusions 331 are provided so that the contact between the lower mounting plate 330 and the surface of the circuit board 200 becomes point contact, thereby making the flatness easy to manage.

To sum up, the utility model discloses an increase arch 331 between metal casing subassembly 30 and circuit board 200's contact surface for contact between them has been improved into the point contact by traditional face contact, thereby has made the easy management and control of plane degree, reduces the processing procedure management and control degree of difficulty, and when surface welding (SMT), protruding 331 accessible and circuit board 200 (PCB) design of interference slightly can make the better laminating with circuit board 200 of installation end 22 of terminal module 20, has reduced the empty welding risk of terminal with circuit board 200, has improved the reliability of product.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and those skilled in the art can make many variations and modifications of the technical solution of the present invention without departing from the scope of the technical solution of the present invention.

Claims

1. The utility model provides an electric connector, includes insulator, accepts terminal module in insulator and cladding in insulator outlying metal casing subassembly, its characterized in that: the metal casing subassembly is equipped with a pair of lower mounting panel that is horizontal extension and with a circuit board welded connection, the surface of lower mounting panel is equipped with the orientation the protruding stretch of circuit board and butt in arch on the circuit board.

2. The electrical connector of claim 1, wherein: the metal shell assembly comprises an inner shell arranged on the insulating body and an outer shell coated on the surface of the inner shell, the outer shell comprises an upper cover and a lower cover which are in lap joint with each other, and the upper cover and the lower cover are respectively covered on the upper side and the lower side of the inner shell.

3. The electrical connector of claim 2, wherein: the upper cover is provided with an inverted U-shaped top cover plate, a pair of upper mounting plates horizontally extending from two sides of the top cover plate, and a rear baffle plate formed by bending and extending downwards from the rear side of the top cover plate.

4. The electrical connector of claim 3, wherein: the lower cover is provided with a U-shaped bottom cover plate, the lower mounting plate extends horizontally from two sides of the bottom cover plate, and the lower mounting plate and the upper mounting plate are arranged in an up-and-down corresponding mode.

5. The electrical connector of claim 4, wherein: the inner shell surrounds the periphery of the insulating body and is provided with a top wall, a bottom wall and a pair of arc-shaped side walls, and the rear end of the top wall is provided with an L-shaped mounting arm extending downwards.

6. The electrical connector of claim 5, wherein: the rear baffle plate is integrally connected with the rear side edge of the top cover plate, welding pins protruding downwards are arranged at two ends of the rear baffle plate, and the welding pins and the L-shaped mounting arm are adjacently arranged in the front and at the back.

7. The electrical connector of claim 6, wherein: the inner shell is arranged between the top cover plate and the bottom cover plate.

8. The electrical connector of claim 7, wherein: the upper mounting plate and the lower mounting plate are both provided with a mounting hole fixedly mounted with the circuit board.

9. The electrical connector of claim 8, wherein: each lower mounting plate is provided with at least two bulges.

10. The electrical connector of any one of claims 4 to 9, wherein: the lower mounting plate is interposed between the top cover plate and the bottom cover plate in a vertical direction.