CN113540858A

CN113540858A - Electric connector

Info

Publication number: CN113540858A
Application number: CN202110702410.0A
Authority: CN
Inventors: 邰军; 葛林忠; 张佳华
Original assignee: Kunshan Jiahua Electronics Co Ltd
Current assignee: Kunshan Jiahua Electronics Co Ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2021-10-22
Anticipated expiration: 2041-06-24
Also published as: CN113540858B

Abstract

The application discloses electric connector includes: an upper row of terminal assemblies; a lower row of terminal assemblies; the buckle piece is combined between the upper row of terminal assemblies and the upper row of terminal assemblies; an insulating sleeve formed with a docking space and forming an insertion port; the upper row of terminal assemblies and the lower row of terminal assemblies combined with the clamping piece are assembled in the insulating sleeve, the clamping piece extends to form a reinforcing foot part, the reinforcing foot part extends along the transverse direction perpendicular to the plugging direction and is exposed out of the insulating sleeve, and a limiting effect is achieved between the reinforcing foot part and the insulating sleeve. The electric connector is stable in structural strength and long in service life.

Description

Electric connector

Technical Field

The application belongs to the technical field of connectors, and particularly relates to an electric connector.

Background

In the prior art, USB plug connectors, especially USB Type-C plug connectors, have been widely used, such as mobile phone charging, electronic product charging, data transmission, and the like. Because USB Type-C plug connector has positive and negative characteristics of inserting, interference killing feature is good and terminal quantity is many, the terminal row adopts the insert die through the integrated into one piece that moulds plastics basically during production, and the integrated into one piece that moulds plastics can solve the terminal row fixed and reduce the technical problem who glues the core volume. USB Type-C plug connector is that two rows of terminal row glue the core with the stack of symmetry form and rely on the insulating casing suit and in fixed insulating casing, and USB Type-C plug connector still generally includes two buckle elastic arms, and the core is fixed with the terminal row glue through equipment or the mode of moulding plastics integrated into one piece. The buckle elastic arm is used for being fixed with a butt joint plug connector in a buckling mode, and meanwhile the function of grounding shielding can be achieved. However, due to frequent plugging of the plug connector and the socket connector, the situation that the snap spring arm is loose or is outwardly expanded can easily occur, and the situation that the snap spring arm is not tight with the snap of the socket connector can further occur, so that the defects are caused.

Therefore, there is a need for a new electrical connector that overcomes the above problems.

Disclosure of Invention

The purpose of this application is to provide a new electric connector, its structural strength is stable, and long service life.

In order to achieve the above purpose, the present application provides the following technical solutions:

an electrical connector, comprising:

the upper row terminal assembly comprises a plurality of upper terminals arranged in a row and an upper insulating part which is integrally formed with the upper terminals in an injection molding manner;

the lower row terminal assembly comprises a plurality of lower terminals arranged in a row and a lower insulating part which is integrally formed with the lower terminals in an injection molding mode;

the buckle piece is combined between the upper row of terminal assemblies and the upper row of terminal assemblies;

an insulating sleeve formed with a docking space and forming an insertion port;

the upper row of terminal assemblies and the lower row of terminal assemblies combined with the clamping piece are assembled in the insulating suite, each upper terminal and each lower terminal are provided with terminal contact parts protruding into the butting space, each clamping piece is provided with elastic arm parts extending along the plugging and unplugging direction of the butting connector, at least parts of the elastic arm parts are positioned at two side positions of the butting space along the plugging and unplugging direction of the butting connector, and the elastic arm parts are provided with contact parts protruding into the butting space;

the buckle part extends to form a reinforcing foot part, at least part of the reinforcing foot part extends along the transverse direction perpendicular to the plugging direction and is exposed out of the insulating sleeve part, and a limiting effect is achieved between the reinforcing foot part and the insulating sleeve part.

Furthermore, the buckle piece also comprises a butt joint part which protrudes out of the insulating sleeve piece from one end of the insulating sleeve piece, which is far away from the insertion hole, and the butt joint part is correspondingly connected with the butt joint circuit board.

Furthermore, the insulating sleeve is further provided with an assembling space, the assembling space is positioned at the front end of the butting space and communicated with the butting space along the inserting direction of the butting connector, and the upper row terminal assembly and the lower row terminal assembly combined with the clamping piece are inserted and assembled into the insulating sleeve along the pulling direction of the butting connector.

Furthermore, the insulation external member is formed with the groove of stepping down in the both sides in equipment space, the groove of stepping down is used for stepping down and strengthens foot.

Furthermore, the insulation sleeve member is perpendicular to the plugging direction of the butting connector and the arrangement direction of the upper terminals and penetrates through the arrangement direction of the upper terminals to form limiting holes, the limiting holes are located at the position right behind the receding groove along the insertion direction of the butting connector, the limiting holes are located at the two ends of the assembly space in the arrangement direction of the upper terminals, the reinforcing feet correspondingly protrude into the limiting holes, and the limiting effect is achieved with the limiting holes.

Furthermore, the buckling piece is assembled between the upper insulating piece and the lower insulating piece in a stacking mode, a through hole penetrates through the buckling piece, and a positioning column matched with the through hole in a positioning mode is formed on the upper insulating piece and/or the lower insulating piece.

Furthermore, the reinforcing foot part is protruded from two ends of the upper insulating part and the lower insulating part along the arrangement direction of the plurality of upper terminals.

Furthermore, the buckle piece further comprises a combination part and a connection part, the connection part integrally connects the front end position of the elastic arm part along the insertion direction of the butting connector with the combination part, the buckle piece forms an abdication notch right behind the connection part along the insertion direction of the butting connector, the reinforcing foot part is formed by extending the front end position of the elastic arm part along the insertion direction of the butting connector, and the reinforcing foot part and the connection part are respectively positioned at two ends of the elastic arm part along the arrangement direction of the plurality of upper terminals.

Further, the through hole is formed on the bonding portion.

Further, the number of the buckling pieces is two.

Compared with the prior art, the beneficial effects of this application are: the electric connector is stable in structural strength and long in service life.

Drawings

Fig. 1 is a perspective view of an electrical connector disclosed herein.

Fig. 2 is a partially exploded perspective view of the electrical connector disclosed herein, particularly illustrating the upper row of terminal assemblies and the lower row of terminal assemblies with associated latches in a perspective view when separated from the insulative sleeve.

Fig. 3 is a partially exploded perspective view of the electrical connector disclosed herein, showing the upper row of terminal assemblies, the lower row of terminal assemblies with the latch incorporated therein, and the insulation sleeve in a separated perspective view.

Fig. 4 is a partially exploded perspective view of the electrical connector disclosed herein, showing the upper row of terminal assemblies, the latch, and the perspective view of the lower row of terminal assemblies separated from the insulating sleeve.

Fig. 5 is a top view of the electrical connector disclosed herein, particularly illustrating the top row of terminal assemblies, the bottom row of terminal assemblies with the latch incorporated therein, and the insulating sleeve when they are separated.

Fig. 6 is a rear view of the electrical connector disclosed herein, particularly illustrating the upper and lower row of terminal assemblies with snaps incorporated therein, separated from the insulative sleeve.

Fig. 7 is a top view of an electrical connector as disclosed herein.

Fig. 8 is a sectional view taken along line a-a of fig. 7.

Fig. 9 is a schematic structural view of the electrical connector assembly of the present application after being assembled to a mating circuit board.

Fig. 10 is an enlarged view of the structure within the dashed line box in fig. 9.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.

Referring to fig. 1 to 10, an electrical connector disclosed in the present application includes an upper row terminal assembly 1, a lower row terminal assembly 2, a locking member 3 and an insulating sleeve 4. The fastener 3 is combined between the upper row terminal assembly 1 and the upper row terminal assembly 2. The upper row terminal assembly 1 and the lower row terminal assembly 2, to which the grommet 3 is bonded, are assembled into the insulating sheath 4. The insulating sheath 4 is formed with a butting space 41 and an insertion opening 411. The electrical connector is fixed to the docking circuit board 6 for docking with a docking connector (not shown) to realize signal transmission.

Referring to fig. 4, the upper row terminal assembly 1 includes a plurality of upper terminals 11 arranged in a row and an upper insulating member 12 integrally molded with the upper terminals 11 by injection molding. The lower row of terminal assemblies 2 comprises a plurality of lower terminals 21 arranged in a row and a plurality of lower insulating members 22 which are integrally formed with the lower terminals 21 in an injection molding manner. Each of the upper and

lower terminals

11 and 21 is formed with a terminal contact portion 101 projecting into the mating space 41. The latch 3 is formed with elastic arms 31 extending along the plugging direction of the mating connector, the elastic arms 31 are at least partially located at two sides of the mating space 41 along the plugging direction of the mating connector, and the elastic arms 31 protruding into the mating space 41 are formed.

Referring to fig. 4 to 7, the insulation sleeve 4 further forms an assembly space 42, along the insertion direction of the mating connector, the assembly space 42 is located at the front end of the mating space 41 and is communicated with the mating space 41, the upper row terminal assembly 1 and the lower row terminal assembly 2 combined with the locking member 3 are inserted and assembled into the insulation sleeve 4 along the pulling direction of the mating connector, specifically, the upper insulation member 12 and the lower insulation member 22 are correspondingly assembled and combined in the assembly space 42, and each terminal contact portion 101 at least partially protrudes into the mating space 41.

Referring to fig. 2 to 10, the locking member 3 further includes a combining portion 34 and a connecting portion 35. The connecting portion 35 integrally connects the front end position of the elastic arm portion 31 in the insertion direction of the mating connector to the coupling portion 34. A through hole 301 is formed through the connecting portion 34, and a positioning post 101 positioned and matched with the through hole 301 is formed on the upper insulating member 12 and/or the lower insulating member 22. The upper row of terminal assemblies 1 and the lower row of terminal assemblies 2 are stacked and hold the fastener 3, and the positioning columns 101 are correspondingly inserted into the through holes 301 to realize positioning and fixing.

Referring to fig. 3 to 5, the locking member 3 forms an escape notch 302 right behind the connecting portion 35 along the insertion direction of the mating connector. The provision of the relief notch 302 enables the elastic arm portion 31 to have a sufficient elastic arm length. In this application, the latch 3 further extends to form a reinforcing foot 33, the reinforcing foot 33 is formed by extending the front end position of the elastic arm 31 in the insertion direction of the mating connector, and the reinforcing foot 33 and the connecting portion 35 are located at two corresponding ends of the elastic arm 31 along the arrangement direction of the plurality of upper terminals 11. The insulation sleeve 4 is formed with a relief groove 421 at two sides of the assembling space 42, and the relief groove 421 is used for the upper row terminal assembly 1 and the lower row terminal assembly 2 combined with the locking element 3 to be inserted into the insulation sleeve 4 along the pulling direction of the butting connector and to be assembled with the reinforcement foot 33.

Further, the insulation sleeve 4 is formed with a limiting hole 422 penetrating along a direction perpendicular to the inserting and extracting direction of the docking connector and perpendicular to the arrangement direction of the plurality of upper terminals 11. The limiting hole 422 is located right behind the receding groove 421 along the insertion direction of the mating connector, and the limiting hole 422 is located at two ends of the assembly space 42 in the arrangement direction of the plurality of upper terminals 11. The reinforcing foot 33 correspondingly protrudes into the limiting hole 422, and a limiting effect is achieved between the reinforcing foot 33 and the insulating sleeve 4 (refer to fig. 9 and 10, specifically, a limiting effect is achieved between the reinforcing foot 33 and the limiting hole 422).

In the embodiment of the present application, the reinforcing foot portion 33 extends in a "l" shape. In the manufacturing process, before the locking element 3 is assembled into the insulating sleeve 4, the reinforcing leg 33 extends linearly, and after the upper row terminal assembly 1 and the lower row terminal assembly 2 combined with the locking element 3 are inserted into the insulating sleeve 4 along the pulling direction of the butting connector, the reinforcing leg 33 is bent by a jig to form a "L" shape.

Referring to fig. 2 to 8, the connecting portion 34, the connecting portion 35 and a portion of the elastic arm 31 adjacent to the connecting portion 35 are clamped between the upper insulator 12 and the lower insulator 22. In the electrical connector of the present application, the latch 3 is fixed to the upper insulator 12 and the lower insulator 22 only by the through hole 301 in cooperation with the positioning post 101. When the electric connector and the butting connector are frequently inserted and pulled out, the combination of the buckling piece 3, the upper insulating piece 12 and the lower insulating piece 22 is easy to loosen, the whole of the upper row terminal assembly 1 and the upper row terminal assembly 2 combined with the buckling piece 3 and the insulating sleeve 4 are also easy to loosen, and then the insulating sleeve 4 is easy to fall off, and the buckling piece 3 is expanded outwards, so that the butting with the butting connector is poor. In addition, due to the provision of the relief notch 302, the structural strength of the snap-in element 3 at the location of the connecting portion 35 is weakest. The position of the reinforcing foot part 33 is arranged to effectively reinforce the structural strength of the buckle part 3 and the bonding strength of the upper insulating part 12 and the lower insulating part 22, so that the possibility that the combination of the buckle part 3, the upper insulating part 12 and the lower insulating part 22 is loosened due to frequent plugging and unplugging of the butting connector can be effectively prevented, and the possibility that the insulating sleeve part 4 falls off is also prevented.

In other embodiments, the reinforcing foot 33 may be designed to be closely matched with the limiting hole 422, specifically, the fastening member 3 is attached to three inner wall surfaces of the limiting hole 422, so that better reinforcing and limiting effects can be achieved.

In other embodiments, the reinforcement foot 33 may be used to secure with a mating structure (not shown) for better reinforcement, retention, and the like.

Referring to fig. 2 to 4, two of the locking elements 3 are provided, each locking element 3 further extends toward the insertion direction of the mating connector at the position of the connection portion 35 and is bent to form a mating portion 32, and the mating portion 32 protrudes out of the insulating sleeve 4 at the position of the end of the insulating sleeve 4 away from the insertion port 411 and is correspondingly connected to the mating circuit board 6. In this application, the number of the clasps 3 is two. The electric connector disclosed by the application has stable structural strength and longer service life. The utility model provides an electric connector is USB Type-C plug connector in fact, specifically is a mainly used and test plug that butting connector (socket connector) test was used. Of course, the application of the electrical connector is not intended to limit the scope of the present application.

Although embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An electrical connector, comprising:

an insulating sleeve formed with a docking space and forming an insertion port;

the upper row terminal assembly and the lower row terminal assembly combined with the clamping piece are assembled into the insulating suite, each upper terminal and each lower terminal are respectively provided with a terminal contact part protruding into the butt joint space, the clamping piece is provided with an elastic arm part extending along the plugging and unplugging direction of the butt joint connector, at least part of the elastic arm part is positioned at two side positions of the butt joint space along the plugging and unplugging direction of the butt joint connector, and the elastic arm part is provided with a contact part protruding into the butt joint space, and the clamping device is characterized in that:

2. An electrical connector as defined in claim 1, wherein: the clamping piece further comprises a butt joint part protruding out of the insulating sleeve piece at one end, far away from the insertion hole, of the insulating sleeve piece, and the butt joint part is correspondingly connected with the butt joint circuit board.

3. An electrical connector as defined in claim 1, wherein: the insulation sleeve is also provided with an assembling space, the assembling space is positioned at the front end of the butting space and communicated with the butting space along the inserting direction of the butting connector, and the upper row terminal assembly and the lower row terminal assembly combined with the clamping buckle are inserted and assembled into the insulation sleeve along the pulling direction of the butting connector.

4. An electrical connector as defined in claim 3, wherein: the insulation external member is formed with the groove of stepping down in the both sides in equipment space, the groove of stepping down is used for stepping down and strengthens foot.

5. An electrical connector as defined in claim 4, wherein: the insulation external member runs through along the plug direction of perpendicular to butting connector and perpendicular to a plurality of the array direction of last terminal forms spacing hole, spacing hole position is in the groove of stepping down along the positive rear of the plug direction of butting connector, just spacing hole in a plurality of the array direction of last terminal is located the both ends in equipment space, strengthen the foot and correspond protruding to spacing downthehole, and realize limiting displacement with spacing hole.

6. An electrical connector as claimed in any one of claims 1 to 5, wherein: the clamping piece is assembled between the upper insulating piece and the lower insulating piece in a stacking mode, a through hole penetrates through the clamping piece, and a positioning column matched with the through hole in a positioning mode is formed on the upper insulating piece and/or the lower insulating piece.

7. An electrical connector as defined in claim 6, wherein: the reinforcing foot part is formed by protruding two ends of an upper insulating part and a lower insulating part along the arrangement direction of the upper terminals.

8. An electrical connector as defined in claim 6, wherein: the clamping piece further comprises a combination part and a connecting part, the connecting part integrally connects the front end position of the elastic arm part along the insertion direction of the butting connector with the combination part, the clamping piece forms an abdication notch at the right back of the connecting part along the insertion direction of the butting connector, the reinforcing foot part is formed by extending the front end position of the elastic arm part along the insertion direction of the butting connector, and the reinforcing foot part and the connecting part are respectively positioned at two ends of the elastic arm part along the arrangement direction of the plurality of upper terminals.

9. An electrical connector as defined in claim 8, wherein: the through hole is formed on the bonding portion.

10. An electrical connector as claimed in any one of claims 1 to 5, wherein: the buckle spare is equipped with two.