CN109038052B

CN109038052B - Electric connector

Info

Publication number: CN109038052B
Application number: CN201810976434.3A
Authority: CN
Inventors: 邰军
Original assignee: Kunshan Jiahua Electronics Co Ltd
Current assignee: Kunshan Jiahua Electronics Co Ltd
Priority date: 2018-08-25
Filing date: 2018-08-25
Publication date: 2024-04-16
Anticipated expiration: 2038-08-25
Also published as: CN109038052A

Abstract

The utility model provides an electric connector, its includes the insulator, fix in the last row terminal group and the lower row terminal group that constitute of a plurality of terminal in the insulator and fix the metal casing outside the insulator, the insulator with the metal casing encloses jointly and establishes the butt joint connector male that supplies of one end open-ended and insert the space, the insulator includes the basal portion and extends forward from the basal portion butt joint tongue board, each terminal in the last row terminal group and the lower row terminal group all includes the contact portion that exposes outside the butt joint tongue board surface of insulator, extends the butt joint portion outside the insulator along the basal portion rear end of insulator and connects contact portion with butt joint portion and at least part buries the connecting portion in the basal portion of insulator, be fixed with the metalwork in the insulator, the metalwork welded in the metal casing. The design makes the assembly between the insulating body and the metal shell more stable.

Description

Electric connector

Technical Field

The present invention relates to an electrical connector.

Background

The USB association published a new Type of electrical connector, the plug connector of which can be plugged into the corresponding receptacle connector in both the forward and reverse directions, which can transmit USB2.0 and USB3.1 signals, and this connector was designated as USB Type C connector, at day 11, 8 in 2014. According to news reported in the industry, the electric connector has great development potential later, and each connector manufacturer cooperates with the system manufacturer to actively develop.

However, the shape, structure, terminal contact mode, terminal number, distance (Pitch) of each terminal and distribution (Pin Assignment) of the latest generation of USB Type-C electrical connectors are different from those of the current USB electrical connectors. The USB Type-C socket electric connector comprises two rows of flat terminals which are arranged on a rubber core and are vertically symmetrical, and an outer iron shell and other structures are covered outside the rubber core. The rubber core of the general USB Type-C socket electric connector is formed by mutually assembling, combining and injection molding a plurality of pieces of rubber bodies, and a row of upper flat terminals and a row of lower flat terminals are respectively combined in each rubber body.

However, in the conventional USB Type-C receptacle connector, the number of terminals is large, the pitch between the terminals is small, the upper and lower rows of terminals are mirror-symmetrical, and the overall dimensions are ideal, so that it is difficult to fix the two rows of flat terminals and the insulating body into a whole by one-time injection molding. Therefore, the existing manufacturing process is often completed through a process of combining multiple injection molding and assembly. However, multiple forming and multiple assembling can generate more joint seams among the modules, and the overall strength is low. When the module is inserted with the butt connector, the modules are easy to loosen under the action of the butt inserting force.

In view of the above, there is a need to design a new electrical connector to overcome the above-mentioned technical problems.

Disclosure of Invention

The invention aims to provide an electric connector which has stable integral structure, good integral strength and simple manufacturing process.

In order to achieve the aim of the invention, the invention discloses the following technical scheme:

an electrical connector, comprising:

an upper terminal module, which is provided with a first insulator and an upper row of terminal groups which are integrally fixed in the first insulator and are composed of a plurality of terminals;

a lower terminal module formed with a second insulator and a lower row terminal group composed of a plurality of terminals integrally fixed in the second insulator;

the third insulator is integrally formed outside the upper terminal module and the lower terminal module which are stacked and assembled along the up-down direction, and forms an insulating body together with the first insulator and the second insulator, and the insulating body comprises a base part and a butt tongue plate extending forwards from the base part;

the first metal piece is integrally formed and fixed on the first insulator and exposed out of the upper surface of the base;

the second metal piece is integrally formed and fixed on the second insulator and exposed out of the lower surface of the base;

the metal shell is sleeved on the periphery of the base part and is surrounded with the insulating body together to form an opposite insertion space with one end open for inserting the opposite connector;

each terminal in the upper row terminal group and the lower row terminal group comprises a contact part exposed out of the surface of the butt tongue plate of the insulating body, a butt part extending out of the insulating body along the rear end of the base part of the insulating body, and a connecting part connecting the contact part and the butt part and at least partially embedded in the base part of the insulating body;

the first metal piece is arranged on the upper surface of the inner side of the metal shell and is fixed through welding;

the second metal piece is arranged on the lower surface of the inner side of the metal shell and is fixed through welding;

the first metal piece and the second metal piece do not exceed the front surface of the base part along the pulling-out direction of the butt joint connector.

Further, the first metal piece and the first insulator are integrally formed and fixed; the second metal piece and the second insulator are integrally formed and fixed.

Further, the base includes grooves formed by being recessed inward from the upper and lower surfaces thereof, respectively, and the first and second metal pieces are respectively and correspondingly mounted in the grooves.

Further, the first metal piece and the second metal piece both comprise a flat plate part and a plurality of clamping parts bent and extended from the edge of the flat plate part, a plurality of clamping holes are correspondingly formed in the groove, and the clamping parts are correspondingly inserted and fixed in the clamping holes.

Further, the front end edge of each flat plate part in the extraction direction of the butt connector is convexly provided with a convex part along the plate thickness direction, the base part comprises a containing groove formed by continuously and inwards sinking from the bottom surface of the groove, and the convex part is contained in the containing groove; the accommodating groove penetrates through the front surface of the base, and the front surface of the protruding part is exposed out of the front surface of the base and is flush with the front surface of the base.

Further, the front and rear edges and the left and right edges of the flat plate portion of the first metal piece and/or the second metal piece are each extended to form a holding portion structure inserted and fixed in the base portion.

Further, the metal shell comprises a first shell, a second shell and a third shell, the first shell is sleeved on the periphery of the base, the metal piece is welded to the first shell, and the second shell and the third shell are respectively attached to the first shell in the up-down direction.

Compared with the prior art, the metal piece is fixed in the insulating body and welded with the metal shell, so that the assembly between the insulating body and the metal shell is more stable, and when the insulating body is inserted with the butt connector, the electric connector has better overall strength under the action of the butt-plug force.

Drawings

Fig. 1 is a schematic perspective view of an electrical connector according to a first embodiment of the present invention.

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

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

Fig. 4 is an exploded perspective view of the terminal module shown in fig. 3.

Fig. 5 is a perspective view of the terminal module of fig. 3 from another perspective.

Fig. 6 is an exploded perspective view of the upper terminal module shown in fig. 4.

Fig. 7 is an exploded perspective view of the lower terminal module shown in fig. 4.

Fig. 8 is a schematic perspective view of an electrical connector according to a second embodiment of the present invention.

Fig. 9 is a schematic perspective view of the electrical connector of fig. 8 from another perspective.

Fig. 10 is an exploded perspective view of the electrical connector of fig. 9.

Fig. 11 is an exploded perspective view of the terminal module shown in fig. 10.

Fig. 12 is a perspective view of the terminal module of fig. 10 from another angle.

Fig. 13 is an exploded perspective view of the upper terminal module shown in fig. 11.

Fig. 14 is an exploded perspective view of the lower terminal module shown in fig. 11.

Detailed Description

For the purposes, technical solutions and advantages of the present application, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.

In this case, only the structure and/or the form closely related to some embodiments of the present application are shown in the drawings, and other details not greatly related to some embodiments of the present application are omitted so as to avoid obscuring the present application with unnecessary details.

In addition, it should be further noted that the terms "comprises," "comprising," "has," "having," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a structure, module, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such structure, module, or apparatus.

Referring to fig. 1 to 7, a first embodiment of an electrical connector 100 according to the present invention is disclosed, wherein the electrical connector 100 is a receptacle connector, and includes a terminal module 10 and a metal housing 20 covering the terminal module 10. The terminal module 10 includes an insulative housing 30, an upper and a lower terminal sets 40 and 50, each of which is composed of a plurality of terminals, fixed in the insulative housing 30, and a first metal piece 60 and a second metal piece 70, fixed in the insulative housing 30. The insulator 30 includes a base 301 and a butt tongue plate 302 extending forward from the base 301. Each of the terminals in the upper and lower terminal groups 40 and 50 includes a contact portion 81 exposed outside the surface of the butt plate 302 of the insulating body 30, a butt portion 83 extending outside the insulating body 30 along the rear end of the base 301 of the insulating body 30, and a connection portion 82 connecting the contact portion 81 and the butt portion 83 and at least partially buried in the base 301 of the insulating body 30. The metal housing 20 is fixed outside the insulating body 30. The metal housing 20 includes a first housing 21, a second housing 22, and a third housing 23. The first housing 21 has a cylindrical shape. The first housing 21 is sleeved on the periphery of the base 301. The insulating body 30 and the first housing 21 together enclose an insertion space 101 with an opening at one end into which a mating connector is inserted. The butt tongue plate 302 is located in the butt-inserting space 101. The second casing 22 and the third casing 23 are respectively attached to the upper and lower sides of the first casing 21 in the up-down direction.

The insulating body 30 includes a first insulator 31, a second insulator 32, a third insulator 33, and a fourth insulator 34. The first insulator 31 is integrally formed with the first metal member 60 and the upper row terminal set 40 to form an upper terminal module 11. The second insulator 32 is integrally formed with the second metal member 70 and the lower row terminal set 50 to form a lower terminal module 12. By this design, the strength of the upper and lower terminal modules 11, 12 is increased. When the electric connector 100 and the butt connector are inserted, the upper and lower terminal modules 11, 12 have better tooth fixing property and are not easy to loosen under the action of the opposite insertion force. The upper terminal module 11 and the lower terminal module 12 are assembled together in a vertically overlapping manner. The third insulator 33 is integrally formed outside the upper terminal module 11 and the lower terminal module 12, and forms the base 301 and the tongue plate 302. The fourth insulator 34 is integrally formed with the upper row terminal set 40 and the lower row terminal set 50, and the fourth insulator 34 is located at the rear side of the base 301. The fourth insulator 34 better secures the upper row terminal set 40 and the lower row terminal set 50. The first metal member 60 exposes the upper surface of the first insulator 31, and the second metal member 70 exposes the lower surface of the second insulator 32. Namely, the first metal piece 60 and the second metal piece 70 are respectively exposed from the upper and lower surfaces of the base 301. The first metal member 60 and the second metal member 70 are welded to the first housing 21, respectively, so that the assembly between the terminal module 10 and the first housing 21 is more stable.

Referring to fig. 8 to 14, a second embodiment of the electrical connector 100' of the present invention is disclosed, wherein the electrical connector 100' is a receptacle connector, and includes a terminal module 10' and a metal housing 20' covering the terminal module 10'. The terminal module 10 'includes an insulative housing 30', an upper and a lower terminal sets 40 'and 50' made up of a plurality of terminals fixed in the insulative housing 30', and a first and a second metal members 60' and 70 'fixed in the insulative housing 30'. The insulator body 30 'includes a base 301' and a butt tongue plate 302 'extending forward from the base 301'. Each of the terminals in the upper and lower terminal sets 40 'and 50' includes a contact portion 81 'exposed outside the surface of the abutting plate 302' of the insulating body 30', an abutting portion 83' extending outside the insulating body 30 'along the rear end of the base 301' of the insulating body 30', and a connection portion 82' connecting the contact portion 81 'and the abutting portion 83' and at least partially buried in the base 301 'of the insulating body 30'. The metal shell 20 'is fixed outside the insulating body 30'. The metal housing 20 'includes a first housing 21', a second housing 22', and a third housing 23'. The first housing 21' has a cylindrical shape. The first housing 21 'is sleeved on the periphery of the base 301'. The insulating body 30' and the first housing 21' together enclose an insertion space 101' with an opening at one end into which the mating connector is inserted. The butt tongue plate 302 'is located in the butt-inserting space 101'. The second casing 22' and the third casing 23' are respectively attached to the upper and lower sides of the first casing 21' in the up-down direction.

The insulator body 30' includes a first insulator 31', a second insulator 32', a third insulator 33', and a fourth insulator 34'. The first insulator 31 'is integrally formed with the upper terminal group 40'. The first metal piece 60 'is mounted to the first insulator 31'. The first insulator 31', the upper row terminal set 40', and the first metal member 60 'form an upper terminal module 11'. The second insulator 32 'is integrally formed with the lower terminal set 50'. The second metal piece 70 'is mounted to the second insulator 32'. The second insulator 32', the lower row terminal set 50', and the second metal piece 70 'form a lower terminal module 12'. The upper terminal module 11 'and the lower terminal module 12' are assembled together in a vertically overlapping manner. The third insulator 33' is integrally formed outside the upper terminal module 11' and the lower terminal module 12' and forms the base 301' and the tongue plate 302'. The first metal piece 60' and the second metal piece 70' are both mounted to the base 301'. The fourth insulator 34' is integrally formed with the upper and lower terminal sets 40' and 50', and the fourth insulator 34' is located at the rear side of the base 301'. The fourth insulator 34' better secures the upper row terminal set 40' and the lower row terminal set 50'. The first insulator 31 'includes a first recess 312' formed to be recessed downward from an upper surface thereof, and the first metal member 60 'is mounted in the first recess 312'. The first metal piece 60 'includes a first flat plate portion 61' and a plurality of first clamping portions 62 'bent and extended from the edge of the first flat plate portion 61'. A plurality of first retaining holes 310 'are correspondingly disposed in the first groove 312'. The first catching portion 62 'is engaged with the first catching hole 310' to assemble the first metal piece 60 'to the first insulator 31'. The first insulator 31 'further includes two first receiving grooves 311' continuously recessed inward from the first groove 312', the first metal piece 60' further includes two first protruding portions 63 'protruding from the first flat plate portion 61', and the two first protruding portions 63 'are respectively received in the two first receiving grooves 311'. The first receiving groove 311 'penetrates the front surface of the base 301', and the front surface of the first protrusion 63 'is flush with the front surface of the base 301'. The second insulator 32 'includes a second groove 322' formed to be recessed upward from a lower surface thereof, and the second metal member 70 'is mounted in the second groove 322'. The second metal piece 70 'includes a second plate portion 71' and a plurality of second clamping portions 72 'bent and extended from edges of the second plate portion 71'. A plurality of second retaining holes 320 'are correspondingly disposed in the second groove 322'. The second catch 72 'mates with the second catch aperture 320' to assemble the second metal piece 70 'to the second insulator 32'. The second insulator 32 'further includes two second receiving grooves 321' formed continuously and concavely from the second groove 322', the second metal member 70' further includes two second protruding portions 73 'protruding from the second plate portion 71', and the two second protruding portions 73 'are respectively received in the two second receiving grooves 321'. The second receiving groove 321 'penetrates the front surface of the base 301', and the front surface of the second protrusion 73 'is flush with the front surface of the base 301'. When the butt connector is inserted into the butt-inserting space 101', the butt connector directly abuts against the first and second metal parts 60', 70 'exposed from the front end face of the base 301', the upper and lower terminal modules 11', 12' are not easy to deform or move backwards under the action of the butt-inserting force, and the stopping strength is good. The first metal piece 60' is fixed to the base 301' and exposes an upper surface of the base 301'. The first metal piece 60 'is welded to the first housing 21'. The second metal piece 70' is fixed to the base 301' and exposes the lower surface of the base 301'. The second metal piece 70 'is welded to the first housing 21'. I.e., the first and second metal pieces 60', 70', respectively, are welded to the first housing 21', so that the assembly between the terminal module 10' and the first housing 21' is more stable.

The arrangement of the first metal piece and the second metal piece enhances the stability between the terminal module and the metal shell, and when the electric connector and the butt connector are inserted oppositely, the electric connector has better overall strength and is not easy to loosen and deform under the action of the opposite insertion force.

Claims

1. An electrical connector, comprising:

each terminal in upper row terminal group and the lower row terminal group all includes the contact portion outside the butt joint tongue plate surface of exposing the insulator, extends the butt joint portion outside the insulator along the basal portion rear end of insulator and connects contact portion with butt joint portion and at least partly buries the connecting portion in the basal portion of insulator, its characterized in that:

2. An electrical connector, comprising:

an insulating body formed with a base and a butt-joint plate extending forward from the base;

the upper row of terminal groups consists of a plurality of terminals;

the lower row of terminal groups consists of a plurality of terminals;

each terminal comprises a contact part exposed out of the surface of the butt-joint tongue plate of the insulating body, a butt-joint part extending out of the insulating body along the rear end of the base part of the insulating body, and a connecting part connecting the contact part and the butt-joint part and at least partially embedded in the base part of the insulating body, and is characterized by further comprising:

the first metal piece is integrally formed and fixed on the base part and is exposed out of the upper surface of the base part;

the second metal piece is integrally formed and fixed on the base part and exposed out of the lower surface of the base part;

the part of the first metal piece exposed out of the upper surface of the base part is fixed with the upper surface of the inner side of the metal shell through welding;

the part of the second metal piece exposed out of the lower surface of the base part is fixed with the lower surface of the inner side of the metal shell through welding;

3. The electrical connector of claim 1 or 2, wherein:

the metal shell comprises a first shell, a second shell and a third shell, wherein the first shell is sleeved on the periphery of the base, the first metal piece and the second metal piece are welded to the first shell, and the second shell and the third shell are respectively attached to the first shell in the vertical direction.

4. The electrical connector of claim 1 or 2, wherein:

the metal shell comprises a first shell and a second shell, the first shell is sleeved on the periphery of the base, the first metal piece and the second metal piece are welded to the first shell, and the second shell is attached to the first shell along the up-down direction.