CN218827937U

CN218827937U - Electrical connector

Info

Publication number: CN218827937U
Application number: CN202121068588.6U
Authority: CN
Inventors: 孔德文; 容志强; 苟亚娟
Original assignee: Alltop Electronics Suzhou Co Ltd
Current assignee: Alltop Electronics Suzhou Co Ltd
Priority date: 2021-05-19
Filing date: 2021-05-19
Publication date: 2023-04-07
Anticipated expiration: 2031-05-19

Abstract

The utility model provides an electric connector, it includes insulator, fixing in insulator's a plurality of conductive terminal and metal casing, metal casing has open butt joint chamber forward, every conductive terminal have expose in contact site, the fixed part of fixing in insulator and the protrusion in the butt joint intracavity the external afterbody of insulator, the afterbody is less than its size in the direction of height at the ascending size of horizontal direction, the afterbody is including being located its bottom and terminal surface that is located its rear end with the face of weld that links to each other with external circuit board, the afterbody still has certainly the face of weld is to sunken formation, the breach will along horizontal direction the afterbody runs through and borders on terminal surface sets up. The utility model discloses electric connector roughness is higher.

Description

Electrical connector

Technical Field

The utility model relates to an electric connector especially relates to a higher electric connector of structural strength.

Background

When the traditional electric connector is low in height and the conductive terminals are of a blanking structure, the material belt connection design of the conductive terminals is difficult, and the flatness of the tail parts of the conductive terminals after assembly and welding is difficult to guarantee.

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 a higher electric connector of roughness.

In order to realize the above object of the present invention, the utility model provides an electric connector, it includes insulator, the fixing in a plurality of conductive terminal and the metal casing of insulator, the metal casing has open butt joint chamber forward, every conductive terminal have expose in contact site, the fixed part of fixing in insulator and the protrusion in the butt joint intracavity the afterbody outside the insulator, afterbody size on the transverse direction is less than its size on the direction of height, the afterbody is including being located its bottom and terminal surface that is located its rear end with the face of weld that links to each other with external circuit board, the afterbody still has certainly the face of weld is upwards sunken formation scarce portion, scarce portion will along the transverse direction the afterbody runs through and borders on terminal surface sets up.

As a further improvement of the utility model, the height of the notch part in the height direction is at least 0.1mm.

As a further improvement of the present invention, the terminal surface is used to connect to the metal material belt and has a height of at least 0.3mm in the height direction.

As a further improvement of the present invention, each of the tail portions further has an inclined surface which is disposed on both sides of the end surface in the transverse direction and connected to the end surface.

As a further improvement, the insulator has a plurality of terminal grooves arranged side by side along the transverse direction, the welding surface is located the tank bottom surface upside of the terminal grooves, the tail part is located the height range of the terminal grooves.

As a further improvement of the present invention, a projection of each of the tails on a plane where the end surface thereof is located inside a projection of the fixing portion on the plane.

As a further improvement of the present invention, the fixing portion has a fixing portion protruding from at least one side of the insulating body in the transverse direction thereof to fix the insulating body, the insulating body has a plurality of terminal grooves arranged side by side in the transverse direction and fixing grooves communicated with the corresponding terminal grooves to accommodate the corresponding fixing portion.

As a further improvement, the fixing portion further has a spacing portion staggered with the fixing portion in the height direction, the fixing portion interferes to be fixed in the fixing groove, the spacing portion with the fixing portion is located with one side of the fixing portion in the transverse direction.

As a further improvement of the present invention, the fixing portion further has a step portion protruding upward and having its front end stopped at the insulating body, the insulating body has a stopper surface located at the front side of its rear end face and corresponding to the terminal groove to be set up to abut against the step portion.

As a further improvement of the present invention, the tail portion is connected to the step portion by a joining surface, and the height of the joining surface in the height direction is not more than 0.3mm.

The utility model discloses electric connector is through the scarce portion of the face of weld undercut formation at conductive terminal's afterbody, and makes scarce portion will along horizontal direction the afterbody runs through and borders on terminal surface sets up to fused soldering tin is piled up on the face of weld and is leaded to its plane not good enough when avoiding welding.

Drawings

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

Fig. 2 is a view of the electrical connector of fig. 1 from another perspective.

Fig. 3 is an exploded perspective view of the electrical connector shown in fig. 2.

Fig. 4 is a view of the electrical connector of fig. 3 from another perspective.

Fig. 5 to 6 are sectional views of the electrical connector shown in fig. 2.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to fig. 6, an electrical connector 100 according to a preferred embodiment of the present invention is shown, wherein the electrical connector 100 includes an insulating housing 1, a plurality of conductive terminals 2 fixed on the insulating housing 1, and a metal shell 3. In the present invention, the direction of the electrical connector 100 is defined as the front-rear direction, the longitudinal direction of the insulating housing 1 is defined as the lateral direction, and the direction perpendicular to the mating direction and the lateral direction is defined as the height direction.

Referring to fig. 2 to 6, the insulating housing 1 is elongated and has a plurality of terminal slots 12 arranged side by side along a transverse direction and a plurality of holding slots 13 communicated with the corresponding terminal slots 12. Each terminal groove 12 penetrates the insulating body 1 along the front-back direction, every two adjacent terminal grooves 12 are separated from each other by a partition wall 14, and each holding groove 13 is arranged on one side of the terminal groove 12 communicated with the holding groove 13 in the transverse direction.

In addition, insulator 1 still have with terminal groove 12 corresponds the setting and with a plurality of spacing grooves 15 that correspond terminal groove 12 and be linked together the utility model discloses the embodiment that shows, each terminal groove 12 all communicates and is provided with one spacing groove 15 and one fixing slot 13, with same terminal groove 12 is linked together fixing slot 13 with spacing groove 15 is independent each other and in the direction of height dislocation set.

The insulating body 1 further has a pair of first positioning portions 16 located at two sides of the insulating body 1 in the transverse direction, a locking portion 17 located at the top of the insulating body, and a second positioning portion 18 protruding from the bottom of the insulating body, each of the first positioning portions 16 is protruding outward from the corresponding side surface of the insulating body 1 in the transverse direction, and is strip-shaped, and the front end of the first positioning portion has an inclined guide surface 161.

The metal housing 3 has a pair of side walls 31 located at two sides in the transverse direction, a top wall 32 located at the top of the side walls, and a bottom wall 33 located at the bottom of the side walls, and the pair of side walls 31, the top wall 32, and the bottom wall 33 together enclose to form a forward-open docking cavity 30.

The top wall 32 has a locking slot 321 and a notch 322 formed through the top wall 32 along the height direction, the notch 322 is recessed backward from the front end surface of the top wall 32, and each of the side walls 31 has a first positioning slot 312 recessed forward from the rear end thereof for receiving the first positioning portion 16 of the corresponding side of the insulating housing 1. The bottom wall 33 has a second positioning slot 331 recessed forward from the rear end thereof for receiving the second positioning portion 18 of the insulating housing 1.

Referring to fig. 1 to 6, each of the conductive terminals 2 has a contact portion 21 exposed in the mating cavity 30, a fixing portion 22 held in the insulating body, and a tail portion 23 exposed outside the insulating body 1, the tail portion 23 has a dimension in a transverse direction smaller than a dimension in a height direction, the tail portion 23 includes a soldering surface 231 located at a bottom thereof to be connected to an external circuit board (not shown) and a tail end surface 232 located at a rear end thereof, the tail portion 23 further has a recess 233 recessed upward from the soldering surface, and the recess 233 penetrates the tail portion 23 in the transverse direction and is disposed adjacent to the tail end surface 232.

Further, as shown in fig. 5 and fig. 6, a height h1 of the notch 233 in the height direction is at least 0.1mm, so as to better accommodate the solder, and avoid the solder from accumulating at the bottom of the soldering surface 231 and causing poor flatness. The end surface 232 is used for connecting with the metal material belt, and the height h2 in the height direction is at least 0.3mm, so that the connecting structure is stable.

In addition, each of the tail portions 23 has inclined surfaces 234 which are disposed on both sides of the end surface 232 in the lateral direction and are connected to the end surface 232.

The soldering surface 231 is located on the upper side of the bottom surface 121 of the terminal groove 12, and the tail portion 23 is located within the height range of the terminal groove 12.

The projection of each tail portion 23 on the plane of its end face 232 is located within the projection of the fixing portion 22 on that plane.

The fixing portion 22 has a holding portion 221 protruding from at least one side of the fixing portion in the transverse direction thereof to be held with the insulating housing 1, and the holding portion 221 is received in the corresponding holding groove 13.

The fixing portion 22 further has a limiting portion 223 staggered from the holding portion 221 in the height direction, the holding portion 221 is fixed in the holding groove 13 in an interference manner, and the limiting portion 223 and the holding portion 221 are located on the same side of the fixing portion 22 in the transverse direction, so as to ensure the thickness of the partition wall 14 of the insulation body 1.

The fixing portion 22 further has a step portion 224 protruding upward and having its front end stopped at the insulating body 1, and the insulating body 1 has a stop surface 102 located at the front side of the rear end surface 101 and disposed corresponding to the terminal groove 12 to abut against the step portion 224.

Further, the tail portion 23 and the step portion 224 are connected by an engaging surface 24, and a height h3 of the engaging surface 24 in the height direction is not greater than 0.3mm, so as to reduce the overall height of the conductive terminal 2.

The utility model discloses electric connector 100 is through the scarce portion 233 of the sunken formation that makes up of welding face 231 at the afterbody 23 of its conductive terminal 2, and makes scarce portion 233 will along transverse direction afterbody 23 runs through and borders on terminal surface sets up to fused soldering tin is piled up when avoiding welding on the welding face 231 and lead to its plane not good enough.

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. An electrical connector comprises an insulating body, a plurality of conductive terminals held in the insulating body and a metal shell, wherein the metal shell is provided with a forward-open butt-joint cavity, each conductive terminal is provided with a contact part exposed in the butt-joint cavity, a fixed part held in the insulating body and a tail part exposed out of the insulating body, the size of the tail part in the transverse direction is smaller than that of the tail part in the height direction, the tail part comprises a welding surface positioned at the bottom of the tail part and connected with an external circuit board and a tail end surface positioned at the rear end of the tail part, and the electrical connector is characterized in that: the tail part is also provided with a notch part which is formed by sinking upwards from the welding surface, and the notch part penetrates through the tail part along the transverse direction and is arranged adjacent to the tail end surface.

2. The electrical connector of claim 1, wherein: the height of the notch in the height direction is at least 0.1mm.

3. The electrical connector of claim 2, wherein: the tail end face is used for being connected with the metal material belt, and the height of the tail end face in the height direction is at least 0.3mm.

4. The electrical connector of claim 3, wherein: each of the tail portions also has inclined surfaces disposed on both sides of the end surface in the transverse direction and connected to the end surface.

5. The electrical connector of claim 1, wherein: the insulation body is provided with a plurality of terminal grooves which are arranged side by side along the transverse direction, the welding surface is positioned on the upper side of the bottom surface of each terminal groove, and the tail part is positioned in the height range of the terminal grooves.

6. The electrical connector of claim 5, wherein: the projection of each tail part on the plane of the tail end surface is positioned in the projection of the fixed part on the plane.

7. The electrical connector of claim 1, wherein: the fixing part is provided with a fixing part which is arranged on at least one side of the transverse direction in a protruding mode and is fixedly held with the insulating body, and the insulating body is provided with a plurality of terminal grooves which are arranged side by side along the transverse direction and fixing grooves which are communicated with the corresponding terminal grooves and are used for accommodating the corresponding fixing parts.

8. The electrical connector of claim 7, wherein: the fixing part is also provided with a limiting part which is staggered with the fixing part in the height direction, the fixing part is fixed in the fixing groove in an interference manner, and the limiting part and the fixing part are positioned on the same side of the fixing part in the transverse direction.

9. The electrical connector of claim 7, wherein: the fixing part is also provided with a step part which protrudes upwards and enables the front end of the fixing part to be stopped at the insulating body, and the insulating body is provided with a stopping surface which is positioned at the front side of the rear end surface of the insulating body and is arranged corresponding to the terminal groove so as to be abutted against the step part.

10. The electrical connector of claim 9, wherein: the tail part is connected with the step part through an engagement surface, and the height of the engagement surface in the height direction is not more than 0.3mm.