CN210517096U

CN210517096U - Electrical connector

Info

Publication number: CN210517096U
Application number: CN201921475095.7U
Authority: CN
Inventors: 容志强; 张汝雷
Original assignee: Alltop Electronics Suzhou Co Ltd
Current assignee: Alltop Electronics Suzhou Co Ltd
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-05-12
Anticipated expiration: 2029-09-05

Abstract

The utility model provides an electric connector, which comprises an insulating body and a terminal component assembled to the insulating body, the insulation body is provided with a mounting part positioned at the lower part and a butt joint part connected with the upper end of the mounting part, the mounting part is provided with a holding cavity which is open downwards, the butt joint part is provided with a central slot which is arranged in the middle of the mounting part and extends along the transverse direction of the insulating body, two side walls which are arranged at two sides of the central slot, a plurality of terminal slots which are communicated with the holding cavity in the front and back directions are respectively arranged on the two side walls, the terminal assembly is mounted into the insulating body from the lower direction of the mounting part, the terminal assembly further comprises an insulating piece accommodated in the accommodating cavity, and the two rows of conductive terminals are embedded and fixed in the insulating piece to form a one-piece structure. The utility model discloses electric connector equipment is convenient and has higher precision.

Description

Electrical connector

Technical Field

The utility model relates to an electric connector.

Background

Two rows of conductive terminals of a conventional electrical connector are usually embedded and molded into corresponding insulating blocks to form two terminal assemblies, and then the two terminal assemblies are assembled and mounted in an insulating body; therefore, the alignment accuracy of the terminal assembly is difficult to ensure during assembly, and certain tolerance may exist during assembly and then installation in the insulating body.

In view of the above, there is a need for an improved electrical connector to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an assemble conveniently and have the electric connector of higher precision.

In order to achieve the above object of the utility model, the utility model provides an electric connector, which comprises an insulating body and a terminal component assembled to the insulating body, the insulation body is provided with a mounting part positioned at the lower part and a butt joint part connected with the upper end of the mounting part, the mounting part is provided with a holding cavity which is open downwards, the butt joint part is provided with a central slot which is arranged in the middle of the mounting part and extends along the transverse direction of the insulating body, two side walls which are arranged at two sides of the central slot, a plurality of terminal slots which are communicated with the holding cavity in the front and back directions are respectively arranged on the two side walls, the terminal assembly is mounted into the insulating body from the lower direction of the mounting part, the terminal assembly further comprises an insulating piece accommodated in the accommodating cavity, and the two rows of conductive terminals are embedded and fixed in the insulating piece to form a one-piece structure.

As a further improvement of the present invention, the insulating member includes a first insulating member and a second insulating member assembled with each other, and two rows of conductive terminals are embedded and formed in the first and second insulating members to form the first and second terminal assemblies, respectively, and the insulating member further has an injection molding in the third insulating member of the first and second terminal assemblies.

As a further improvement of the present invention, the insulating body further has a fixing groove communicated with the accommodating chamber, the insulating member further has a positioning block protruding from at least one side thereof, the positioning block is upwardly loaded into the fixing groove and is retained by a stopper surface formed at the bottom of the fixing groove.

As a further improvement of the present invention, the positioning block is disposed on at least one of the first and second insulating members, and the positioning block has a guide surface extending obliquely.

As a further improvement of the present invention, the insulating member further has a stopper protruding from at least one side thereof, the stopper includes a first limiting portion formed on the first insulating member or the second insulating member and a second limiting portion connected to the first limiting portion and formed on the third insulating member.

As a further improvement of the present invention, the first and second insulating members have through holes respectively exposing the corresponding row conductive terminal portions.

As a further improvement of the present invention, after the first and second terminal assemblies are assembled, the melted plastic material flows into the through holes formed in the first and second insulators, and is exposed in two rows of the through holes, and the conductive terminals are wrapped to form the third insulator.

As a further improvement of the present invention, the first insulating member and the second insulating member have a protruding column and a combining groove which are assembled and positioned with each other.

As a further improvement of the present invention, each of the conductive terminals has a contact arm protruding upward into the terminal groove and a leg extending downward from the insulating member, and each contact arm has a contact portion protruding toward the other row of the corresponding conductive terminal.

As a further improvement of the present invention, the electrical connector further has a pair of positioning columns protruding downward, and the pair of positioning columns is formed on the insulating body and/or the bottom of the insulating member.

The utility model has the advantages that: the utility model discloses the electric connector is through with two rows conductive terminal inlays to bury and is fixed in the insulator is in order to constitute a formula structure, installs again in insulator to make the equipment of terminal subassembly more convenient, can guarantee the counterpoint precision of terminal subassembly moreover.

Drawings

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

Fig. 2-3 are views of the electrical connector of fig. 1 from another perspective.

Fig. 4 is an exploded perspective view of the electrical connector of fig. 2.

Fig. 5 is a partially exploded view of the first and second terminal assemblies of the electrical connector of fig. 4.

Fig. 6 is a further exploded view of the first and second terminal assemblies of the electrical connector of fig. 5.

Fig. 7 is a perspective view of the first and second terminal assemblies of fig. 5 assembled and formed with a third insulating member.

Detailed Description

The present invention will be described in detail below with reference to embodiments shown in the drawings. However, the present invention is not limited to the embodiment, and the structural, method, or functional changes made by those skilled in the art according to the embodiment are all included in the scope of the present invention.

Referring to fig. 1 to 7, in order to illustrate a preferred embodiment of the electrical connector 100 of the present invention, the electrical connector 100 is an SAS connector for being soldered to a circuit board (not shown), and includes an insulative housing 1 and a terminal assembly 2 assembled to the insulative housing 1. For convenience of description, the following description will be made with the mating end of the electrical connector 100 as a top end and the other end opposite to the mating end as a bottom end, that is, the up-down direction is the mating direction of the electrical connector 100 and a mating component (not shown), and one direction perpendicular to the up-down direction is defined as a transverse direction and the other direction perpendicular to the up-down direction is defined as a front-back direction.

Referring to fig. 1 to 4, the insulative housing 1 has a mounting portion 11 located at a lower side and an abutting portion 12 connected to an upper end of the mounting portion 11, a dimension of the mounting portion 11 in a front-back direction is larger than a dimension of the abutting portion 12 in the front-back direction, and in this embodiment, a projection of the abutting portion 12 on a horizontal plane parallel to the circuit board is located inside a projection of the mounting portion 11 on the horizontal plane.

The butt joint portion 12 has a central slot 120 located in the middle and extending along the transverse direction of the insulation body 1, and two side walls 121 located at two sides of the central slot 120, wherein the two side walls 121 are respectively provided with a plurality of terminal slots 122 communicated with the accommodating cavity 110 in the front-back direction. The terminal slots 122 on the same sidewall 121 are arranged along the transverse direction of the insulating body 1, and the terminal slots 122 on the two sidewalls 121 are disposed oppositely.

The installation part 11 is provided with an accommodation cavity 110 which is open downwards, and fixing grooves 112 communicated with the accommodation cavity 110 are formed on two side walls of the installation part 11 respectively. In this embodiment, a pair of the fixing grooves 112 are respectively formed on each side wall of the mounting portion 11 and spaced apart in a transverse direction.

The two side walls of the mounting portion 11 are further respectively provided with a limiting groove 113 communicated with the accommodating cavity 110, and in this embodiment, the limiting groove 113 is located between the pair of buckling grooves 112 on the corresponding side along the transverse direction.

Referring to fig. 1 to 7, the terminal assembly 2 is installed in the insulating housing 1 from the lower side of the installation portion 11, and has two rows of conductive terminals 22 arranged at intervals along the front-back direction, the terminal assembly 2 further includes an insulating member 21 accommodated in the accommodation cavity 110, and the two rows of conductive terminals 22 are embedded and fixed in the insulating member 21 to form a one-piece structure.

The two rows of conductive terminals 22 are oppositely arranged and are in a mirror image relationship along a vertical plane located in the middle of the conductive terminals. Each conductive terminal 22 has a contact arm 221 projecting upward into the corresponding terminal slot 122 and a solder leg 223 extending downward from the insulating member 21, each contact arm 221 has a contact portion 2210 projecting toward the corresponding conductive terminal 22 in the other row, and each contact portion 2210 is bent and projects into the central slot 120 to contact with the mating connector.

In the illustrated embodiment of the present invention, the insulating member 21 includes a first insulating member 211 and a second insulating member 212 assembled with each other, two rows of conductive terminals 22 are embedded and formed in the first and second insulating

members

211 and 212 to form a first and second terminal assemblies, respectively, and the insulating member 21 further has a third insulating member 213 injection-molded in the first and second terminal assemblies. In other embodiments of the present invention, the insulating member 21 can also be formed outside the two rows of the conductive terminals 22 at one time, thereby directly forming a one-piece structure.

The insulating member 21 further has a positioning block 2101 protruded from at least one side thereof, and the positioning block 2101 is upwardly fitted into the fixing groove 112 and is stopped by a stopping surface 1121 formed at the bottom of the fixing groove 112. Specifically, the positioning block 2101 is disposed on at least one of the first and

second insulators

211 and 212, and the positioning block 2101 has a guide surface 2102 extending obliquely. In this embodiment, the first and second insulating

members

211 and 212 are each provided with a pair of positioning blocks 2101.

The insulating member 21 further has a limiting block 2103 protruding from at least one side of the insulating member 21, in this embodiment, the pair of positioning blocks 2101 are disposed near the upper surface of the insulating member 21, and the limiting block 2103 is disposed near the lower surface of the insulating member 21, so as to be staggered in the vertical direction, and further form a staggered fit with the insulating body 1, thereby enhancing the bonding strength between the insulating member 21 and the insulating body 1.

Further, the limit block 2103 includes a first limit portion 21031 formed on the first insulating member 211 or the second insulating member 212 and a second limit portion 21032 connected to the first limit portion 21031 and formed on the third insulating member 213, in this embodiment, the first limit portion 21031 is located below the second limit portion 21032.

The first and

second insulators

211 and 212 have through holes 2104 partially exposing the corresponding row of conductive terminals 22, respectively. After the first and second terminal assemblies are assembled, the molten plastic material flows into the through holes 2104 formed in the first and second

insulating members

211 and 212, and wraps the two rows of conductive terminals 22 exposed in the through holes 2104 to form the third insulating member 213.

The first insulator 211 and the second insulator 212 have a stud 2105 and a coupling slot 2106 that are assembled with each other. Specifically, in the present embodiment, each of the first and

second insulators

211 and 212 has a pair of posts 2105 protruding toward each other and a coupling slot 2106 receiving the posts 2105 of each other, and the posts 2105 and the coupling slots 2106 are spaced apart from each other in the transverse direction.

In addition, in the present invention, the electrical connector 100 further has a pair of positioning pillars 3 protruding downward, the pair of positioning pillars 3 are formed at the bottom of the insulating housing 1 and/or the insulating member 21, that is, each of the positioning pillars 3 extends downward from the bottom end of the insulating housing 1 or the insulating member 21. Specifically, in the embodiment shown in the present invention, a pair of the positioning pillars 3 respectively extend downward from two ends of the mounting portion 11; in other embodiments of the present invention, a pair of the positioning columns 3 may also be formed by extending downward from both ends of the insulating member 21.

The electrical connector 100 further has a shielding shell 4 sleeved outside the insulating body 1, wherein the shielding shell 4 is made of a metal material and includes a frame portion 41 and a fixing leg 42 extending downward from a bottom end of the frame portion 41. The frame portion 41 is formed by connecting a pair of transverse walls 411 and a pair of longitudinal walls 412, one transverse wall 411 is spaced from the insulating body 1 by a certain distance, and the other transverse wall 411 and the pair of longitudinal walls 412 are attached to the outer side of the insulating body 1. The other lateral wall 411 is provided with a pair of abutting pieces 43 extending obliquely towards the inside of the frame portion 41, and a top end of each abutting piece 43 abuts against the insulating body 1.

Each of the longitudinal walls 412 is provided with a pressing piece 44 extending toward the inside of the frame body 41, and the pressing piece 44 is disposed near one of the transverse walls 411, is parallel to the transverse wall 411, and presses against the outer surface of the side wall 121 of the insulating body 1.

After the third insulating member 213 is molded on the first and second terminal assemblies, the first and second terminal assemblies form an inseparable integrated structure, and then are mounted into the accommodating cavity 110 of the insulating body 1 from the lower side of the mounting portion 11 of the insulating body 1 to the upper side.

The utility model discloses electric connector 100 is through with two rows conductive terminal 22 inlays to be fixed in insulator 21 is in order to constitute a formula structure, installs again among the insulator 1 to make the equipment of terminal subassembly more convenient, can guarantee the counterpoint precision of terminal subassembly moreover.

The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides an electric connector, its include insulator and equipment extremely insulator's terminal subassembly, insulator have the installation department that is located the below and with the butt joint portion that the installation department upper end is connected, the installation department is equipped with open holding chamber downwards, butt joint portion has and is located its centre and is the edge central slot that insulator's transverse direction extends, the both sides wall that is located central slot both sides are equipped with respectively on the both sides wall with a plurality of terminal grooves of intercommunication around the holding chamber, the terminal subassembly certainly install extremely in the below of installation department in the insulator, and have along two rows of conductive terminal of fore-and-aft direction interval setting, its characterized in that: the terminal assembly further comprises an insulating piece accommodated in the accommodating cavity, and the two rows of conductive terminals are embedded and fixed in the insulating piece to form a one-piece structure.

2. The electrical connector of claim 1, wherein: the insulating part comprises a first insulating part and a second insulating part which are assembled with each other, two rows of conductive terminals are respectively embedded and embedded in the first insulating part and the second insulating part to form a first terminal assembly and a second terminal assembly, and the insulating part also comprises a third insulating part which is injection molded on the first terminal assembly and the second terminal assembly.

3. The electrical connector of claim 2, wherein: the insulating body is also provided with a fixing groove communicated with the accommodating cavity, the insulating piece is also provided with a positioning block which is arranged on at least one side of the insulating piece in a protruding mode, and the positioning block is upwards arranged in the fixing groove and is resisted by a stopping surface formed at the bottom of the fixing groove.

4. The electrical connector of claim 3, wherein: the positioning block is arranged on at least one of the first insulating part and the second insulating part and is provided with a guide surface extending obliquely.

5. The electrical connector of claim 3, wherein: the insulating piece is also provided with a limiting block which is arranged on at least one side of the insulating piece in a protruding mode, and the limiting block comprises a first limiting portion formed on the first insulating piece or the second insulating piece and a second limiting portion which is connected with the first limiting portion and formed on the third insulating piece.

6. The electrical connector of claim 2, wherein: the first and second insulating members have through holes exposing the conductive terminal portions of the corresponding rows, respectively.

7. The electrical connector of claim 6, wherein: after the first and second terminal assemblies are assembled, the molten plastic material flows into the through holes formed in the first and second insulating members, and the two rows of conductive terminals exposed in the through holes are wrapped to form the third insulating member.

8. The electrical connector of claim 2, wherein: the first insulating part and the second insulating part are provided with a protruding column and a combination groove which are mutually assembled and positioned.

9. The electrical connector of any one of claims 1 to 8, wherein: each conductive terminal is provided with a contact arm which protrudes upwards into the terminal groove and a welding leg which extends downwards out of the insulating part, and each contact arm is provided with a contact part which is formed by protruding towards the corresponding conductive terminal in the other row.

10. The electrical connector of any one of claims 1 to 8, wherein: the electric connector also has a pair of positioning columns protruding downwards, and the pair of positioning columns are formed at the bottom of the insulating body and/or the insulating piece.