CN216251296U

CN216251296U - Electric connector convenient to assemble

Info

Publication number: CN216251296U
Application number: CN202122941544.6U
Authority: CN
Inventors: 邵兵
Original assignee: Suzhou Unitexin Electronic Technology Co ltd
Current assignee: Suzhou Unitexin Electronic Technology Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-04-08
Anticipated expiration: 2031-11-26

Abstract

The utility model discloses an electric connector convenient for assembly, which comprises a conductive terminal, an insulating casing for accommodating the conductive terminal, and a metal shell for accommodating the insulating casing, accommodate the plastic casing of a plurality of groups metal casing and with the circuit board of plastic casing location installation, conductive terminal includes the first base member that the fore-and-aft direction extends, the contact site that extends forward along first base member, the second base member that the vertical downwardly extending of end formed along first base member reaches the welding foot that forms from second base member downwardly extending, insulating casing shell includes the first casing of accommodating first base member that extends along the fore-and-aft direction and the second casing of accommodating the second base member from the terminal vertical extension of first casing, metal casing includes the extension and the portion of holding that the components of a whole that can function independently set up, the first casing of part is accommodated to the extension, it accepts the chamber to be equipped with two at least in the portion of holding, it accepts second casing and partial first casing to accept the chamber. The extension part and the accommodating part of the metal shell are arranged separately, so that the metal shell is convenient to manufacture and mold.

Description

Electric connector convenient to assemble

Technical Field

The utility model relates to the field of electric connectors, in particular to an electric connector convenient to assemble.

Background

CN113328275A discloses an electrical connector and a method for manufacturing the same, which includes an insulation casing, a conductive terminal fixed in the insulation casing, a metal shell accommodating the insulation casing, and a lock catch shell sleeved at the front end of the metal shell, wherein the insulation casing is injection molded outside the conductive terminal, because the tail end of the conductive terminal is exposed out of the insulation casing, the terminal material tape at the tail end of the conductive terminal is broken after the insulation casing is assembled, thereby realizing automatic material pulling production of the conductive terminal, and because the tail end of the conductive terminal is located in an accommodating space formed by the rear end of the insulation casing and the front end of a rear cover, the electrical connector has better characteristic impedance and shielding effect; but has the disadvantages that the metal shell adopts an integrated structure, the manufacturing process is complex and the cost is high.

Therefore, it is desirable to provide an electrical connector which is easy to assemble, so as to solve the above problems of the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electric connector convenient to assemble, aiming at solving the problems that the existing metal shell is complex in manufacturing process and high in cost.

In order to achieve the purpose, the utility model adopts the following technical scheme: an electric connector convenient for assembly comprises a conductive terminal, an insulating case for accommodating the conductive terminal, a metal shell for accommodating the insulating case, a plastic shell for accommodating a plurality of groups of the metal shell and a circuit board positioned and installed with the plastic shell, wherein the conductive terminal comprises a first base body extending in the front-back direction, a contact part extending forwards along the first base body, a second base body extending vertically downwards along the tail end of the first base body and a welding foot extending downwards from the second base body, the insulating case comprises a first shell for accommodating the first base body extending in the front-back direction and a second shell for accommodating the second base body extending vertically from the tail end of the first shell, the metal shell comprises an extension part and an accommodating part which are arranged in a split manner, the extension part is accommodated in the first shell, and at least two accommodating cavities are arranged in the accommodating part, the accommodating cavity accommodates the second shell and part of the first shell.

The extending part is arranged in a cylindrical shape and accommodates part of the first shell, and the contact part of the conductive terminal extends forwards to extend out of the first shell and is accommodated in the extending part.

The front end surface of the first shell is convexly provided with an annular first convex rib, and the first convex rib of the first shell is interfered and abutted against the inner wall surface of the extending part.

The accommodating part comprises at least two first cavities for accommodating part of the first shell and at least two second cavities for accommodating the second shell, the first cavities and the second cavities are called as accommodating cavities, annular second convex ribs are convexly arranged on the surface of the rear end of the first shell, annular third convex ribs are convexly arranged on the surface of the front end of the second shell, and the second convex ribs and the third convex ribs are interfered and abutted against the inner wall surfaces of corner regions of the first cavities and the second cavities.

The rear end surface of the second shell is convexly provided with an annular fourth convex rib, the fourth convex rib of the second shell is interfered and abutted against the inner wall surface of the second cavity, and the welding pin of the conductive terminal vertically extends out of the second cavity.

The front end inner wall of the first cavity is formed with a first clamping table, the rear end of the extending portion is an installation portion, a plurality of annular fifth convex ribs are convexly arranged on the surface of the installation portion, the installation portion is installed in the first cavity and abutted against the first clamping table, and the fifth convex ribs are interfered and abutted against the inner wall face of the first cavity.

The accommodation portion is formed by half shell on the left side and half shell on the right side, half shell front end on the left side is formed with fender portion, accommodate the chamber by half shell on the left side half shell on the right side equipment encloses and establishes and form.

Half shell on the left side half shell the equal concave draw-in groove that is equipped with of half shell surface on the right side, the plastic casing is formed with a plurality of through-holes that run through its front and back surface, certainly the plastic casing rear end face extends backward and forms a plurality of elasticity buckle spare, and is a set of the protruding portion of metal casing installs in one in the through-hole, two relative buckle spare and a set of the metal casing hold the draw-in groove card on the portion both sides surface that holds of metal casing and hold.

A bump extends backwards from one side of the rear end face of the plastic shell, a positioning column extends vertically downwards from the bump, the circuit board is correspondingly provided with a positioning hole, the circuit board is further provided with a first fixing hole, and the welding pin is installed in the first fixing hole.

A locking fastener is arranged between the accommodating part and the circuit board, the inner surface of the locking fastener is abutted against the lower end face of the second shell, the locking fastener comprises a mounting ring and a plurality of clamping jaws vertically and backwards extending from the side edge of the mounting ring, the circuit board is provided with a plurality of second fixing holes, and the plurality of clamping jaws are correspondingly mounted with the plurality of second fixing holes.

In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that: the extension part and the accommodating part of the metal shell are arranged separately, so that the metal shell is convenient to manufacture and mold; the accommodating part is formed by assembling a left half shell and a right half shell, so that the insulating casing shell is convenient to mount; the accommodating part is connected with the buckle piece of the plastic shell in a buckling mode, and the assembly is convenient.

Drawings

FIG. 1 is a schematic view of an electrical connector according to the present invention;

FIG. 2 is another angle structure diagram of FIG. 1;

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is a diagram illustrating a disassembled structure of the sub-assembly in FIG. 3

FIG. 5 is an exploded view of the conductive terminal and the insulating housing of FIG. 4;

FIG. 6 is an exploded view of the receptacle of FIG. 4;

FIG. 7 is a schematic view of the plastic housing shown in FIG. 3;

fig. 8 is an exploded view of the latch and the circuit board shown in fig. 3.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 8, the present invention is an electrical connector convenient for assembly, including a conductive terminal 1, an insulation housing 2 for accommodating the conductive terminal 1, a metal housing 3 for accommodating the insulation housing 2, a plastic housing 4 for accommodating a plurality of sets of the metal housing 3, and a circuit board 5 positioned and mounted with the plastic housing 4. The direction of the present invention is based on the front-back direction of the conductive terminal 1.

Referring to fig. 5, the conductive terminal 1 is L-shaped, and includes a first base 111 extending in a front-back direction, a contact portion 12 extending forward along the first base 111, a second base 112 extending vertically downward along a distal end of the first base 111, and a solder leg 13 extending downward from the second base 112, where the first base 111 and the second base 112 form a connection portion 11. The cross sections of the first base body 111, the second base body 112 and the contact part 12 are all circular, so that the punch forming is convenient during machining and forming. The first base 111 and the second base 112 have the same cross-sectional size, and the cross-sectional size of the first base 111 is larger than that of the contact portion 12.

Referring to fig. 5, the insulation casing 2 includes a first casing 21 extending in the front-rear direction and fixed to the first base 111, and a second casing 22 extending vertically from the end of the first casing 21 and fixed to the second base 112, wherein the first casing 21 is disposed corresponding to the first base 111, and the second casing 22 is disposed corresponding to the second base 112. The first housing 21 is disposed in a cylindrical shape and accommodates the first base 111, the second housing 22 is disposed in a cylindrical shape and accommodates the second base 112, the front and rear end surfaces of the first housing 21 are respectively provided with a first annular rib 211 and a second annular rib 212 in a protruding manner, the front and rear end surfaces of the second housing 22 are respectively provided with a third annular rib 221 and a fourth annular rib 222 in a protruding manner, the contact portion 12 of the conductive terminal 1 extends forwards to extend out of the first housing 21, and the welding pin 13 of the conductive terminal 1 extends vertically to extend out of the second housing 22.

Referring to fig. 3, the metal housing 3 includes a protruding portion 31 for accommodating the first housing 21 and a rectangular accommodating portion 32 for accommodating the second housing 22, and the protruding portion 31 and the accommodating portion 32 are separately disposed for easy manufacturing and molding. The protruding portion 31 is disposed in a cylindrical shape and accommodates part of the first housing 21, referring to fig. 4, a socket 311 is disposed at the front end of the protruding portion 31, the contact portion 12 of the conductive terminal 1 extends forward to protrude out of the first housing 21 and is accommodated in the protruding portion 31, and the first rib 211 of the first housing 21 interferes with and abuts against the inner wall surface of the protruding portion 31. The rear end of the protruding portion 31 is a mounting portion 312, and the cross-sectional dimension of the mounting portion 312 is smaller than that of the protruding portion 31. A plurality of annular fifth ribs 3121 are protruded on the surface of the mounting portion 312.

Referring to fig. 6, the accommodating part 32 includes at least two first cavities 3211 accommodating a portion of the first housing 21 and at least two second cavities 3212 accommodating the second housing 22, and the first and

second cavities

3211 and 3212 are referred to as accommodating cavities 321. In this embodiment, at least two receiving cavities 321 are provided. The second and

third ribs

212, 221 interfere with and abut against the inner wall surfaces of the corner regions of the first and

second cavities

3211, 3212. A first catch 3214 is formed on an inner wall of the front end of the first cavity 3211, the mounting portion 312 of the protruding portion 31 is installed in the first cavity 3211 and abuts against the first catch 3214, and the fifth rib 3121 interferes with and abuts against an inner wall surface of the first cavity 3211. The fourth rib 222 of the second housing 22 interferes with and abuts against the inner wall surface of the second cavity 3212, and the soldering pin 13 of the conductive terminal 1 vertically extends out of the second cavity 3212.

With continued reference to fig. 6, the accommodating portion 32 is assembled from the left half shell 322 and the right half shell 323, a front end of the left half shell 322 forms a stopping portion 3221, and a front end surface of the stopping portion 3221 is provided with a front end opening 3213, see fig. 4. The accommodating cavity 321 is formed by assembling and enclosing a left half shell 322 and a right half shell 323. Clamping grooves 3222 are concavely formed in the outer surfaces of the left half shell 322 and the right half shell 323.

In this embodiment, two accommodating cavities 321 are provided, and the lengths of the first cavity 3211 and the second cavity 3212 of one accommodating cavity 321 are greater than the lengths of the first cavity 3211 and the second cavity 3212 of the other accommodating cavity 321. The size of the connecting portion 11 of the conductive terminal 1 mounted in one receiving cavity 321 is larger than the size of the connecting portion 11 of the conductive terminal 1 mounted in the other receiving cavity 321.

Referring to fig. 2, the plastic housing 4 is formed with a plurality of through holes 41 penetrating through the front and rear surfaces thereof, and a plurality of elastic fastening members 42 are formed by extending backward from the rear end surface of the plastic housing 4, the protruding portion 31 of the group of metal housings 3 is installed in one of the through holes 41, and two opposite fastening members 42 of the plastic housing 4 are fastened with the fastening grooves 3222 on the two side surfaces of the accommodating portion 32 of the group of metal housings 3 to form a fastening connection, which is characterized by convenient assembly.

Referring to fig. 7, a protrusion 43 extends backwards from two sides of the rear end surface of the plastic housing 4, a fastening block 431 is formed on the inner surface of the protrusion 43, and the fastening block 431 is connected with a fastening groove 3222 of the accommodating portion 32 in a fastening manner. The positioning posts 432 are formed by extending vertically downward from the bumps 43, referring to fig. 8, the circuit board 5 is correspondingly provided with positioning holes 51, the circuit board 5 is further provided with first fixing holes 52, and the soldering pins 13 are mounted in the first fixing holes 52.

With reference to fig. 8, a locking element 6 is disposed between the accommodating portion 32 and the circuit board 5, an inner surface of the locking element 6 abuts against a lower end surface of the second housing 22, the locking element 6 includes a mounting ring 61 and a plurality of claws 62 extending perpendicularly from a side of the mounting ring 61 to the rear, the circuit board 5 is provided with a plurality of second fixing holes 53, and the claws 62 are mounted corresponding to the second fixing holes 53. The locking member 6 is a metal member, which not only increases the connection stability of the metal housing 3, the plastic housing 4 and the circuit board 5, but also grounds the portion extending outward from the second fixing hole 53, thereby improving the safety.

The extension part 31 and the accommodating part 32 of the metal shell 3 are arranged separately, and the accommodating part 32 is formed by assembling a left half shell 322 and a right half shell 323, so that the metal shell is convenient to manufacture and mold; the accommodating part 32 is connected with the fastener 42 of the plastic shell 4 in a fastening way, so that the assembly is convenient; the accommodating portion 32 is provided with two accommodating cavities 321, and two sets of conductive terminals 1 with different sizes are mounted under the narrow size of the accommodating portion 32, so that the space utilization rate is improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. An electrical connector for ease of assembly, comprising: comprises a conductive terminal, an insulating case for accommodating the conductive terminal, a metal shell for accommodating the insulating case, a plastic shell for accommodating a plurality of groups of the metal shells, and a circuit board positioned and installed with the plastic shell, the conductive terminal comprises a first base body extending in the front-back direction, a contact part extending forwards along the first base body, a second base body formed by vertically extending downwards along the tail end of the first base body and a welding pin formed by extending downwards from the second base body, the insulating case comprises a first shell extending along the front-back direction and accommodating the first substrate and a second shell vertically extending from the tail end of the first shell and accommodating the second substrate, the metal shell comprises a protruding part and an accommodating part which are arranged separately, the protruding part accommodates part of the first shell, at least two accommodating cavities are arranged in the accommodating part, and the accommodating cavities accommodate the second shell and part of the first shell.

2. The electrical connector of claim 1, wherein: the extending part is arranged in a cylindrical shape and accommodates part of the first shell, and the contact part of the conductive terminal extends forwards to extend out of the first shell and is accommodated in the extending part.

3. The electrical connector of claim 2, wherein: the front end surface of the first shell is convexly provided with an annular first convex rib, and the first convex rib of the first shell is interfered and abutted against the inner wall surface of the extending part.

4. The electrical connector of claim 3, wherein: the accommodating part comprises at least two first cavities for accommodating part of the first shell and at least two second cavities for accommodating the second shell, the first cavities and the second cavities are called as accommodating cavities, annular second convex ribs are convexly arranged on the surface of the rear end of the first shell, annular third convex ribs are convexly arranged on the surface of the front end of the second shell, and the second convex ribs and the third convex ribs are interfered and abutted against the inner wall surfaces of corner regions of the first cavities and the second cavities.

5. The electrical connector of claim 4, wherein: the rear end surface of the second shell is convexly provided with an annular fourth convex rib, the fourth convex rib of the second shell is interfered and abutted against the inner wall surface of the second cavity, and the welding pin of the conductive terminal vertically extends out of the second cavity.

6. The electrical connector of claim 1, wherein: the front end inner wall of the first cavity is formed with a first clamping table, the rear end of the extending portion is an installation portion, a plurality of annular fifth convex ribs are convexly arranged on the surface of the installation portion, the installation portion is installed in the first cavity and abutted against the first clamping table, and the fifth convex ribs are interfered and abutted against the inner wall face of the first cavity.

7. The electrical connector of claim 4, wherein: the accommodation portion is formed by half shell on the left side and half shell on the right side, half shell front end on the left side is formed with fender portion, accommodate the chamber by half shell on the left side half shell on the right side equipment encloses and establishes and form.

8. The electrical connector of claim 7, wherein: half shell on the left side half shell the equal concave draw-in groove that is equipped with of half shell surface on the right side, the plastic casing is formed with a plurality of through-holes that run through its front and back surface, certainly the plastic casing rear end face extends backward and forms a plurality of elasticity buckle spare, and is a set of the protruding portion of metal casing installs in one in the through-hole, two relative buckle spare and a set of the metal casing hold the draw-in groove card on the portion both sides surface that holds of metal casing and hold.

9. The electrical connector of claim 1, wherein: a bump extends backwards from one side of the rear end face of the plastic shell, a positioning column extends vertically downwards from the bump, the circuit board is correspondingly provided with a positioning hole, the circuit board is further provided with a first fixing hole, and the welding pin is installed in the first fixing hole.

10. The electrical connector of claim 9, wherein: the circuit board is provided with a plurality of first fixing holes, a plurality of second fixing holes are formed in the circuit board, and the circuit board is provided with a plurality of accommodating parts.