CN113612051A

CN113612051A - Electric connector and manufacturing method thereof

Info

Publication number: CN113612051A
Application number: CN202110800108.9A
Authority: CN
Inventors: 王勇; 徐红强; 许立军
Original assignee: Dongguan Leader Precision Industry Co Ltd
Current assignee: Dongguan Leader Precision Industry Co Ltd
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2021-11-05

Abstract

An electric connector comprises a first isolating sheet, a first insulating block, a first conductive terminal, a second conductive terminal and a metal shell. The first conductive terminal comprises a first extension part, and the first extension part comprises a first butting part. The second conductive terminal comprises a second extension part, and the second extension part comprises a second butting part. The first insulating block comprises a plurality of first positioning convex blocks and a plurality of second positioning convex blocks, wherein the first positioning convex blocks form a plurality of first positioning grooves, and the second positioning convex blocks form a plurality of second positioning grooves. The first extending parts are assembled and positioned in the corresponding first positioning grooves, and the second extending parts are assembled and positioned in the corresponding second positioning grooves. The electric connector also comprises an insulating body which is coated and molded on the first insulating block, the insulating body comprises a tongue plate, and the first butt joint part and the second butt joint part are exposed on the tongue plate. By the arrangement, the structure of the electric connector is simplified, and the cost is reduced. The invention also relates to a manufacturing method of the electric connector.

Description

Electric connector and manufacturing method thereof

Technical Field

The invention relates to an electric connector and a manufacturing method thereof, belonging to the technical field of connectors.

Background

The conventional connector generally includes an insulative housing, a plurality of conductive terminals, and a metal shell. There are many ways of combining the conductive terminal and the insulating body. For example, the upper layer conductive terminal and the upper layer insulating block are combined and fixed as an upper terminal module; the lower conductive terminal and the lower insulating block are combined and fixed into a lower terminal module; then, assembling the upper terminal module and the lower terminal module, and forming a whole by primary coating molding; and finally, forming the final electric connector through secondary coating molding. The electric connector with the structure has a complex structure and higher manufacturing cost.

Disclosure of Invention

The invention aims to provide an electric connector with simple structure and low manufacturing cost and a manufacturing method thereof.

In order to achieve the purpose, the invention adopts the following technical scheme: an electrical connector, comprising:

a spacer portion including a first spacer;

the first insulating block is fixed on the first isolating sheet;

the first conductive terminals comprise first extension parts, and the first extension parts comprise first flat butt joint parts;

the first conductive terminals comprise first extension parts, the first extension parts comprise flat second butting parts, and the first isolating sheet is positioned between the first butting parts and the second butting parts; and

the metal shell comprises a surrounding part surrounding the peripheries of the first butt joint part and the second butt joint part, and the surrounding part is provided with an accommodating space;

the first insulating block comprises a plurality of first positioning lugs and a plurality of second positioning lugs, wherein the first positioning lugs respectively protrude out of the first spacing piece towards two sides, a plurality of first positioning grooves are formed in the first positioning lugs, and a plurality of second positioning grooves are formed in the second positioning lugs; the first extending parts are assembled and positioned in the corresponding first positioning grooves, and the second extending parts are assembled and positioned in the corresponding second positioning grooves;

the electrical connector further comprises an insulating body which is coated and molded on the first insulating block, wherein the insulating body comprises a tongue plate, the tongue plate is provided with a first butt joint surface and a second butt joint surface which are oppositely arranged, the first butt joint part is exposed at the first butt joint surface, and the second butt joint part is exposed at the second butt joint surface; the surrounding part surrounds the periphery of the tongue plate, the tongue plate at least partially extends into the accommodating space, and the first butt-joint part and the second butt-joint part are exposed in the accommodating space.

As a further improved technical solution of the present invention, the electrical connector further includes an insulating covering block, the insulating covering block includes a body portion and a protrusion portion integrally formed with the body portion and protruding forward from the body portion, and the protrusion portion protrudes forward to below the tongue plate.

As a further improved technical scheme of the invention, the front end of the bulge part is provided with a front end surface, the front end of the tongue plate is provided with a front surface, and the front end surface is close to the front surface.

As a further improved technical solution of the present invention, the insulation body includes a holding groove, and the insulation covering block includes a holding protrusion embedded in the holding groove.

As a further improved technical scheme of the invention, the clamping groove is a dovetail groove or a T-shaped groove.

As a further improved technical solution of the present invention, the plurality of first positioning protrusions include a plurality of first protrusions near a distal end of the tongue plate, the plurality of first protrusions are arranged at intervals along a width direction of the tongue plate, the first positioning groove includes a first slot located between two adjacent first protrusions, and the plurality of first protrusions are embedded in the tongue plate.

As a further improved technical solution of the present invention, the plurality of first positioning protrusions include a plurality of second protrusions located at rear ends of the plurality of first protrusions, the plurality of second protrusions protrude upward from the plurality of first protrusions, the plurality of second protrusions are arranged at intervals along a width direction of the tongue plate, and the first positioning groove includes a second slot located between two adjacent second protrusions; the insulating body comprises a first thickened portion connected with the tongue plate, the first thickened portion protrudes upwards and downwards from the tongue plate along the height direction of the tongue plate, and the second bumps are embedded into the first thickened portion and are exposed upwards to the first thickened portion.

As a further improved technical solution of the present invention, the plurality of first positioning protrusions include a plurality of third protrusions located at rear ends of the plurality of second protrusions, the plurality of third protrusions protrude upward from the plurality of second protrusions, the plurality of third protrusions are arranged at intervals along a width direction of the tongue plate, and the first positioning groove includes a third slot located between two adjacent third protrusions; the insulating body comprises a second thickened portion connected with the first thickened portion, the second thickened portion protrudes upwards and downwards from the first thickened portion along the height direction of the tongue plate, and the third bumps are embedded into the second thickened portion and are exposed upwards to the second thickened portion.

As a further improved technical solution of the present invention, the plurality of second positioning protrusions include a plurality of fourth protrusions near a distal end of the tongue plate, the plurality of fourth protrusions are arranged at intervals along a width direction of the tongue plate, the second positioning groove includes a fourth slot located between two adjacent fourth protrusions, and the plurality of fourth protrusions are embedded in the tongue plate.

As a further improved technical solution of the present invention, the plurality of second positioning protrusions include a plurality of fifth protrusions located at rear ends of the plurality of fourth protrusions, the plurality of fifth protrusions downwardly protrude from the plurality of fourth protrusions, the plurality of fifth protrusions are arranged at intervals along a width direction of the tongue plate, and the second positioning groove includes a fifth slot located between two adjacent fifth protrusions; the fifth bumps are embedded in the first thickened portion and exposed downward to the first thickened portion.

As a further improved technical solution of the present invention, the plurality of second positioning protrusions include a plurality of sixth protrusions located at rear ends of the plurality of fifth protrusions, the plurality of sixth protrusions downwardly protrude from the plurality of fifth protrusions, the plurality of sixth protrusions are arranged at intervals along a width direction of the tongue plate, and the second positioning groove includes a sixth slot located between two adjacent sixth protrusions; the sixth bumps are embedded in the second thickened portion and exposed downward to the second thickened portion.

As a further improved technical solution of the present invention, the isolation portion includes a second spacer integrally disposed with the first spacer and perpendicular to the first spacer, the first spacer extends along a horizontal direction, the second spacer extends along a vertical direction, and a length of the second spacer along the vertical direction is greater than a length of the first spacer along the horizontal direction; the electrical connector comprises a second insulating block fixed on the second isolating sheet; the second insulating block comprises a plurality of first grooves positioned on the outer side and a plurality of second grooves positioned on the inner side; the first conductive terminals comprise first mounting parts perpendicular to the first butting parts, the first mounting parts are positioned in the first grooves, and the length of the first mounting parts is greater than that of the first butting parts; the plurality of second conductive terminals comprise second mounting parts perpendicular to the second butting parts, the second mounting parts are positioned in the second grooves, and the lengths of the second mounting parts are greater than that of the second butting parts; the second spacer is located between the first mounting portion and the second mounting portion.

As a further improved technical solution of the present invention, the plurality of first conductive terminals include first tail portions bent and extended from the first mounting portion, the plurality of second conductive terminals include second tail portions bent and extended from the second mounting portion, the first tail portions and the second tail portions are located at the bottom of the second insulating block, and the first tail portions and the second tail portions are coplanar.

As a further improved technical solution of the present invention, the insulating coating block is overmolded on the second insulating block, and the first mounting portion and the second mounting portion are embedded in the insulating coating block; the second spacer comprises an abutting convex part protruding out of the insulating coating block, and the abutting convex part is in contact with the metal shell.

As a further improved technical solution of the present invention, the metal housing includes a first metal housing and a second metal housing matching with the first metal housing, the first metal housing includes a first main body portion, a socket ring, and a connecting portion connecting the first main body portion and the socket ring, the main body portion includes an upper edge, the socket ring includes a lower edge located at a front end, and the connecting portion connects the upper edge and the lower edge; the second metal shell comprises a second main body part and the surrounding part connected with the second main body part; the first main body part is attached to the front end face of the insulating coating block, the second main body part is attached to the rear end face of the insulating coating block, and the sleeve joint ring is sleeved on the surrounding part.

As a further improved technical scheme of the invention, the sleeve ring and the surrounding part are welded and fixed; the first metal shell comprises two first side walls extending backwards from the first main body part, and the second metal shell comprises two second side walls extending forwards from the second main body part; the first side wall and the second side wall are located on the left side and the right side of the insulating coating block, and the first side wall and the second side wall located on the same side are welded and fixed.

The invention also discloses a manufacturing method of the electric connector, which comprises the following steps:

s1: providing a separation part, wherein the separation part comprises a first separation sheet and a second separation sheet perpendicular to the first separation sheet;

s2: providing a first insulating block and a second insulating block, and correspondingly forming and fixing the first insulating block and the second insulating block on a first isolation sheet and a second isolation sheet, wherein the first insulating block comprises a plurality of first positioning lugs and a plurality of second positioning lugs which respectively protrude out of the first isolation sheet towards two sides, a plurality of first positioning grooves are formed on the first positioning lugs, and a plurality of second positioning grooves are formed on the second positioning lugs;

s3: providing a plurality of first conductive terminals and a plurality of second conductive terminals, wherein each first conductive terminal comprises a first extension part, each first extension part comprises a first flat-plate-shaped butting part, each second conductive terminal comprises a second extension part, and each second extension part comprises a second flat-plate-shaped butting part; assembling and positioning the first butt joint parts in the corresponding first positioning grooves, and assembling and positioning the second butt joint parts in the corresponding second positioning grooves;

s4: providing an insulating body, and coating and molding the insulating body on the first insulating block, wherein the insulating body comprises a tongue plate, the tongue plate is provided with a first butt joint surface and a second butt joint surface which are oppositely arranged, the first butt joint part is exposed at the first butt joint surface, and the second butt joint part is exposed at the second butt joint surface;

s5: providing an insulating coating block, and coating and molding the insulating coating block on the second insulating block; the insulating coating block is partially coated and molded on the first conductive terminal and the second conductive terminal, and the insulating coating block is combined with the insulating body;

s6: providing a metal shell and assembling the metal shell to the insulating body, wherein the metal shell comprises a surrounding part surrounding the peripheries of the first butt-joint part and the second butt-joint part, the surrounding part is provided with a containing space, the surrounding part surrounds the periphery of the tongue plate, the tongue plate at least partially extends into the containing space, and the first butt-joint part and the second butt-joint part are exposed in the containing space.

Compared with the prior art, the invention is provided with a plurality of first positioning lugs and a plurality of second positioning lugs, wherein the first positioning lugs form a plurality of first positioning grooves, and the second positioning lugs form a plurality of second positioning grooves; the first butt-joint part is assembled and positioned in the corresponding first positioning groove, and the second butt-joint part is assembled and positioned in the corresponding second positioning groove, so that the first conductive terminal and the second conductive terminal do not need to be molded with an insulating member into a terminal module before the first butt-joint part and the second butt-joint part are assembled and positioned in the corresponding second positioning groove, the structure of the electric connector is simplified, and the cost is reduced.

Drawings

Fig. 1 is a perspective view of an electrical connector according to an illustrative embodiment of the invention mounted on a circuit board.

Fig. 2 is a partially exploded perspective view of fig. 1.

Fig. 3 is a partially exploded perspective view from another angle of fig. 2.

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

Figure 5 is a perspective view of the insulating covering block of figure 4 separated from the insulating body and the second insulating block,

fig. 6 is a perspective view of the insulation body and the first insulation block of fig. 5 separated from each other.

Fig. 7 is a right side view of the dielectric body of fig. 6 with the dielectric body removed.

Fig. 8 is a partially exploded perspective view of fig. 7.

Fig. 9 is a further exploded perspective view of the first and second conductive terminals of fig. 7, with the first and second conductive terminals removed.

Fig. 10 is a right side view of the first insulating block and the second insulating block of fig. 9.

Fig. 11 is a front view of the first insulating block and the second insulating block of fig. 9.

Fig. 12 is a rear view of the first insulating block and the second insulating block of fig. 9.

Fig. 13 is a top view of the first insulating block and the second insulating block of fig. 9.

Fig. 14 is a bottom view of the first and second insulating blocks of fig. 9.

Fig. 15 is a right side view of the insulator body formed in accordance with fig. 7.

Fig. 16 is a front view of fig. 7.

Fig. 17 is a rear view of fig. 7.

Fig. 18 is a top view of fig. 7.

Fig. 19 is a bottom view of fig. 7.

Fig. 20 is a front view of fig. 15.

Fig. 21 is a rear view of fig. 15.

Fig. 22 is a top view of fig. 15.

Fig. 23 is a bottom view of fig. 15.

Fig. 24 is a right side view of the metal shell of fig. 4 removed.

Detailed Description

Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. If several embodiments exist, the features of these embodiments may be combined with each other without conflict. When the description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The statements made in the following exemplary detailed description do not represent all implementations consistent with the present disclosure; rather, they are merely examples of apparatus, products, and/or methods consistent with certain aspects of the invention, as set forth in the claims below.

The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention. As used in the specification and claims of this invention, the singular form of "a", "an", or "the" is intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the use of terms such as "first," "second," and the like, in the description and in the claims of the present invention do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. Unless otherwise indicated, the terms "front," "back," "up," "down," and the like in the description of the invention are used for convenience of description and are not limited to a particular position or spatial orientation. The word "comprise" or "comprises", and the like, is an open-ended expression meaning that an element that precedes "includes" or "comprising" includes "that the element that follows" includes "or" comprises "and its equivalents, that do not preclude the element that precedes" includes "or" comprising "from also including other elements. If the invention is referred to as "a plurality", it means two or more.

Referring to fig. 1 to 3, an electrical connector 100 for mounting on a circuit board 200 is disclosed in the illustrated embodiment of the present invention. The electrical connector 100 is a USB Type C elevated socket connector. Of course, in other embodiments, the electrical connector 100 may also be other elevated electrical connectors, and the description of the present invention is omitted.

Referring to fig. 4 to 9, the electrical connector 100 includes a spacer 1, a first insulating block 21 and a second insulating block 22 fixed on the spacer 1, a plurality of first conductive terminals 31 and a plurality of second conductive terminals 31 mounted on the first insulating block 21 and the second insulating block 22, an insulating body 4 molded on the first insulating block 21, an insulating coating block 5 molded on the second insulating block 22, and a metal housing 6 mounted on the periphery of the insulating body 4 and the insulating coating block 5.

Referring to fig. 9, in the illustrated embodiment of the present invention, the isolation portion 1 is formed by stamping and bending a metal sheet. The spacer 1 includes a first spacer 11 and a second spacer 12 integrally provided with the first spacer 11 and perpendicular to the first spacer 11. The first isolation sheet 11 and the second isolation sheet 12 are both flat, wherein the first isolation sheet 11 extends along the horizontal direction, and the second isolation sheet 12 extends along the vertical direction. In the illustrated embodiment of the present invention, the length of the second spacer 12 extending in the vertical direction is greater than the length of the first spacer 11 extending in the horizontal direction, so that the structure of the spacer 1 in the present invention meets the requirements of an overhead electrical connector. The first spacer 11 and the second spacer 12 are respectively provided with an abutting convex part 13 protruding to two sides (for example, left and right sides), and the abutting convex part 13 is used for contacting with the metal shell 6 to improve the grounding shielding effect. In addition, the first isolation sheet 11 and the second isolation sheet 12 are respectively provided with a plurality of openings 14 so as to fix the first insulation block 21.

In one embodiment of the present invention, the spacer 1 is insert-molded into the first insulating block 21 and the second insulating block 22, wherein the first insulating block 21 is fixed to the first spacer 11, and the second insulating block 22 is fixed to the second spacer 12.

Specifically, as shown in fig. 6 and 7, the first insulating block 21 includes a base portion 210, a plurality of first positioning protrusions 211 protruding upward from the base portion 210, and a plurality of second positioning protrusions 212 protruding downward from the base portion 210. In the illustrated embodiment of the present invention, the first plurality of positioning tabs 211 and the second plurality of positioning tabs 212 are integrally formed with the base portion 210. The first positioning protrusions 211 and the second positioning protrusions 212 are respectively located at two sides (e.g., upper side and lower side) of the first spacer 11.

Referring to fig. 10 to 14, the first positioning bumps 211 form a plurality of first positioning slots 213. Specifically, in the illustrated embodiment of the present invention, the first positioning protrusions 211 include first protrusions 2111, second protrusions 2112 located at rear ends of the first protrusions 2111, and third protrusions 2113 located at rear ends of the second protrusions 2112. Wherein the first bumps 2111, the second bumps 2112, and the third bumps 2113 are arranged at intervals in the width direction W-W of the first insulating block 21. Along the length direction L-L of the first insulating block 21, the first bumps 2111 are located in the front row, the second bumps 2112 are located in the middle row, and the third bumps 2113 are located in the rear row. The second protrusions 2112 protrude upward from the first protrusions 2111, and the third protrusions 2113 protrude upward from the second protrusions 2112. The first positioning slots 213 include a first slot 2131 between two adjacent first protrusions 2111, a second slot 2132 between two adjacent second protrusions 2112, and a third slot 2133 between two adjacent third protrusions 2113.

Similarly, the plurality of second positioning tabs 212 form a plurality of second positioning slots 214. Specifically, in the illustrated embodiment of the present invention, the plurality of second positioning protrusions 212 includes a plurality of fourth protrusions 2121, a plurality of fifth protrusions 2122 located at a rear end of the plurality of fourth protrusions 2121, and a plurality of sixth protrusions 2123 located at a rear end of the plurality of fifth protrusions 2122. Wherein the fourth bumps 2121, the fifth bumps 2122 and the sixth bumps 2123 are arranged at intervals along the width direction W-W of the first insulating block 21. Along the length direction L-L of the first insulating block 21, the fourth protrusions 2121 are located in the front row, the fifth protrusions 2122 are located in the middle row, and the sixth protrusions 2123 are located in the rear row. The fifth protrusions 2122 protrude downward from the fourth protrusions 2121, and the sixth protrusions 2123 protrude downward from the fifth protrusions 2122. The plurality of second positioning grooves 214 includes a fourth slot 2141 located between two adjacent fourth protrusions 2121, a fifth slot 2142 located between two adjacent fifth protrusions 2122, and a sixth slot 2143 located between two adjacent sixth protrusions 2123.

In the illustrated embodiment of the present invention, the first plurality of protrusions 2111 and the fourth plurality of protrusions 2121 are aligned above and below, the second plurality of protrusions 2112 and the fifth plurality of protrusions 2122 are aligned above and below, and the third plurality of protrusions 2113 and the sixth plurality of protrusions 2123 are aligned above and below.

The second insulating block 22 includes a plurality of first grooves 221 on the outer side and a plurality of second grooves 222 on the inner side.

Referring to fig. 8, the first conductive terminal 31 includes a first extending portion 311, a first mounting portion 312 bent downward from the first extending portion 311, and a first tail portion 313 bent backward from the first mounting portion 312. In the illustrated embodiment of the present invention, the first extending portion 311 extends in a horizontal direction, the first mounting portion 312 extends in a vertical direction, and the first tail portion 313 extends in a horizontal direction. In the illustrated embodiment of the present invention, the length of the first mounting portion 312 extending in the vertical direction is greater than the length of the first extending portion 311 extending in the horizontal direction, so that the structure of the first conductive terminal 31 in the present invention meets the requirements of an overhead electrical connector. The first extending portions 311 are assembled and positioned in the corresponding first positioning grooves 213, and the first mounting portions 312 are assembled and positioned in the corresponding first grooves 221. The first extension portion 311 includes a first contact portion 3111 having a flat plate shape.

The second conductive terminal 32 includes a second extending portion 321, a second mounting portion 322 bent downward from the second extending portion 321, and a second tail portion 323 bent backward from the second mounting portion 322. In the illustrated embodiment of the present invention, the second extending portion 321 extends in a horizontal direction, the second mounting portion 322 extends in a vertical direction, and the second tail portion 323 extends in a horizontal direction. In the illustrated embodiment of the present invention, the second mounting portion 322 extends a length in a vertical direction that is greater than a length in a horizontal direction of the second extending portion 321, such that the second conductive terminal 32 of the present invention is configured to meet the requirements of an overhead electrical connector. The second extending portions 321 are assembled and positioned in the corresponding second positioning grooves 214, and the second mounting portions 322 are assembled and positioned in the corresponding second grooves 222. The second extending portion 321 includes a second abutting portion 3211 having a flat plate shape. The first spacer 11 is located between the first butt-joint portion 3111 and the second butt-joint portion 3211, and the second spacer 12 is located between the first mounting portion 312 and the second mounting portion 322, so as to reduce signal crosstalk. The first and

second tail portions

313 and 323 are located at the bottom of the second insulating block 22. The first tail portion 313 and the second tail portion 323 are coplanar and are used for surface soldering to the circuit board 200.

Referring to fig. 4 to 6 and 15 to 24, in the illustrated embodiment of the present invention, the insulating body 4 is overmolded on the first insulating block 21, and the insulating body 4 includes a tongue plate 41, a first thickened portion 42 connected to the tongue plate 41 and located at a rear end of the tongue plate 41, and a second thickened portion 43 connected to the first thickened portion 42 and located at a rear end of the first thickened portion 42. The tongue plate 41 is provided with a first abutting surface 411 and a second abutting surface 412 which are oppositely arranged, wherein the first abutting portion 3111 is exposed at the first abutting surface 411, and the second abutting portion 3211 is exposed at the second abutting surface 412 so as to be electrically connected with a docking connector. The front end of the tongue plate 41 is further provided with a front surface 410 (see fig. 5 and 24). The first thickened portion 42 protrudes upward and downward from the tongue plate 41 in the height direction H-H of the tongue plate 41. The second thickened portion 43 protrudes upward and downward from the first thickened portion 42 in the height direction H-H of the tongue plate 41. Namely, the upper surface and the lower surface of the tongue plate 41, the first thickened portion 42, and the second thickened portion 43 are stepped. The width direction of the tongue plate 41 is the same as the width direction W-W of the first insulating block 21, and the length direction of the tongue plate 41 is the same as the length direction L-L of the first insulating block 21. Referring to fig. 5 and 6, the second thickened portion 43 is provided with a plurality of retaining grooves 431 at the rear end. In the illustrated embodiment of the present invention, the retaining groove 431 is a dovetail groove or a T-shaped groove and extends up and down through the second thickened portion 43.

Referring to fig. 22 and 23, the first protrusions 2111 and the fourth protrusions 2121 are embedded in the tongue plate 41, that is, the first protrusions 2111 and the fourth protrusions 2121 are not exposed to the tongue plate 41. The second bumps 2112 are embedded in the first thickened portion 42 and exposed upward to the first thickened portion 42; the fifth bumps 2122 are embedded in the first thickened portion 42 and exposed downward to the first thickened portion 42. The third bumps 2113 are embedded in the second thickened portion 43 and exposed upward to the second thickened portion 43; the sixth bumps 2123 are embedded in the second thickened portion 43 and exposed downward to the second thickened portion 43.

Referring to fig. 4 and 5, the insulating coating block 5 is mainly overmolded on the second insulating block 22, a portion of the insulating coating block 5 is overmolded on the first conductive terminal 31 and the second conductive terminal 32, and the insulating coating block 5 is combined with the insulating body 4. The first mounting portion 312 and the second mounting portion 322 are embedded in the insulating coating block 5. The insulating coating block 5 includes a clamping protrusion 50 embedded in the clamping groove 431 to improve the tightness of the combination of the insulating coating block 5 and the insulating body 4 and the structural strength of the combination position. The insulating cover block 5 includes a body portion 52 and a protrusion portion 51 integrally formed with the body portion 52 and protruding forward from the body portion 52. The projection 51 projects forward below the tongue plate 41. The front end surface 511 is provided at the front end of the boss 51, and the rear end surface 521 is provided at the rear end of the body 52. After molding, the thickness of the insulating coated block 5 in the front-rear direction is made thicker, that is, the distance between the front end surface 511 and the rear end surface 521 is made larger, due to the provision of the convex portion 51. The front end surface 511 is adjacent to the front surface 410 of the tongue plate 41 in the front-rear direction. With such an arrangement, on one hand, the structural strength of the insulating coating block 5 is improved, so that the insulating coating block 5 can be better coated on the first conductive terminal 31, the second conductive terminal 32 and the second insulating block 22, thereby improving the structural strength of the whole electrical connector 100; on the other hand, since the electrical connector 100 of the present invention is an overhead electrical connector, the height in the vertical direction thereof is large (i.e. the moment arm is large), and it is easy to generate a large moment when being subjected to an external force during installation and use, so that the electrical connector 100 is inclined; in the present invention, the insulating coating block 5 is provided, and the thickness of the insulating coating block 5 in the front-rear direction is made thicker, and the bottom of the insulating coating block 5 and the mounting surface 53 for mounting with the circuit board 200 can have a relatively larger supporting area, so that the supporting effect of the electrical connector 100 when mounted on the circuit board 200 is improved.

Referring to fig. 1 to 4, the metal shell 6 includes a first metal shell 61 and a second metal shell 62 matched with the first metal shell 61. The first metal shell 61 includes a first main body portion 611, a socket ring 612 connected to the first main body portion 611, and two first side walls 613 extending rearward from the first main body portion 611.

The second metal case 62 includes a second main body portion 621, a surrounding portion 622 connected to the second main body portion 621, and two second side walls 623 extending forward from the second main body portion 621. Referring to fig. 4, the first main body portion 611 abuts against a front end surface 511 of the insulating block 5, the second main body portion 621 abuts against a rear end surface 521 of the insulating block 5, the first sidewall 613 and the second sidewall 623 are located at left and right sides of the insulating block 5, and the first sidewall 613 and the second sidewall 623 located at the same side are welded (e.g., spot-welded) together. The collar 612 is fitted over the surround 622. The collar 612 is welded (e.g., spot welded) to the surround 622 to improve the structural strength of the surround 622. The surrounding portion 622 is provided with a receiving space 6220, the surrounding portion 622 surrounds the periphery of the tongue plate 41, and the tongue plate 41 extends at least partially into the receiving space 6220. The first butt-joint portion 3111 and the second butt-joint portion 3211 are exposed in the receiving space 6220.

In addition, the present invention also discloses a method for manufacturing the electrical connector 100, which comprises the following steps:

s1: providing a separator 1, the separator 1 comprising a first separator sheet 11 and a second separator sheet 12;

s2: providing a first insulating block 21 and a second insulating block 22, and correspondingly molding and fixing the first insulating block 21 and the second insulating block 22 to the first isolation sheet 11 and the second isolation sheet 12, wherein the first insulating block 21 includes a plurality of first positioning protrusions 211 and a plurality of second positioning protrusions 212 respectively protruding from the first isolation sheet 11 to two sides, the plurality of first positioning protrusions 211 form a plurality of first positioning slots 213, and the plurality of second positioning protrusions 212 form a plurality of second positioning slots 214;

s3: providing a plurality of first conductive terminals 31 and a plurality of second conductive terminals 32, wherein the first conductive terminals 31 include first extending portions 311, and the second conductive terminals 32 include second extending portions 321; assembling and positioning the first extension 311 in the corresponding first positioning groove 213, and assembling and positioning the second extension 321 in the corresponding second positioning groove 214; the first extension portion 311 includes a first abutting portion 3111 having a flat plate shape, and the second extension portion 321 includes a second abutting portion 3211 having a flat plate shape;

s4: providing an insulating body 4, and overmolding the insulating body 4 on the first insulating block 21, where the insulating body 4 includes a tongue plate 41, the tongue plate 41 is provided with a first mating surface 411 and a second mating surface 412 that are oppositely disposed, where the first mating portion 3111 is exposed at the first mating surface 411, and the second mating portion 3211 is exposed at the second mating surface 412;

s5: providing an insulating coating block 5, and coating and molding the insulating coating block 5 on the second insulating block 22; the insulating coating block 5 is partially coated and molded on the first conductive terminal 31 and the second conductive terminal 32, and the insulating coating block 5 is combined with the insulating body 4; the first mounting portion 312 and the second mounting portion 322 are embedded in the insulating coating block 5.

S6: providing a metal shell 6, and assembling the metal shell 6 to the insulating body 4, wherein the metal shell 6 includes a surrounding portion 622 surrounding the peripheries of the first butt-joint portion 3111 and the second butt-joint portion 3211, the surrounding portion 622 is provided with a receiving space 6220, the surrounding portion 622 surrounds the periphery of the tongue plate 41, the tongue plate 41 at least partially extends into the receiving space 6220, and the first butt-joint portion 3111 and the second butt-joint portion 3211 are exposed in the receiving space 6220.

Compared with the prior art, the present invention has a plurality of first positioning protrusions 211 and a plurality of second positioning protrusions 212, wherein the plurality of first positioning protrusions 211 form a plurality of first positioning slots 213, and the plurality of second positioning protrusions 212 form a plurality of second positioning slots 214; by assembling and positioning the first extending portions 311 in the corresponding first positioning grooves 213 and assembling and positioning the second extending portions 321 in the corresponding second positioning grooves 214, it is not necessary to mold the first and second

conductive terminals

31 and 32 and the insulating member into a terminal module before the assembling and positioning, thereby simplifying the structure of the electrical connector 100, saving the process and reducing the cost.

The above embodiments are only for illustrating the invention and not for limiting the technical solutions described in the invention, and the understanding of the present invention should be based on the technical personnel in the technical field, and although the present invention has been described in detail by referring to the above embodiments, the technical personnel in the technical field should understand that the technical personnel in the technical field can still make modifications or equivalent substitutions to the present invention, and all the technical solutions and modifications thereof without departing from the spirit and scope of the present invention should be covered in the claims of the present invention.

Claims

1. An electrical connector (100) comprising:

a partition (1), the partition (1) comprising a first spacer (11);

a first insulating block (21), the first insulating block (21) being fixed on the first spacer (11);

a plurality of first conductive terminals (31), wherein each first conductive terminal (31) comprises a first extension portion (311), and each first extension portion (311) comprises a first butt-joint portion (3111) in a flat plate shape;

a plurality of second conductive terminals (32), wherein each second conductive terminal (32) comprises a second extending portion (321), each second extending portion (321) comprises a second butting portion (3211) in a flat plate shape, and the first spacer (11) is located between the first butting portion (3111) and the second butting portion (3211); and

a metal shell (6), wherein the metal shell (6) comprises a surrounding part (622) surrounding the peripheries of the first butt joint part (3111) and the second butt joint part (3211), and the surrounding part (622) is provided with a containing space (6220);

the method is characterized in that: the first insulating block (21) comprises a plurality of first positioning lugs (211) and a plurality of second positioning lugs (212) which respectively protrude out of the first isolating sheet (11) towards two sides, wherein a plurality of first positioning grooves (213) are formed on the plurality of first positioning lugs (211), and a plurality of second positioning grooves (214) are formed on the plurality of second positioning lugs (212); the first extensions (311) are assembled and positioned in the respective first positioning grooves (213), and the second extensions (321) are assembled and positioned in the respective second positioning grooves (214);

the electrical connector (100) further comprises an insulating body (4) which is overmolded on the first insulating block (21), wherein the insulating body (4) comprises a tongue plate (41), the tongue plate (41) is provided with a first abutting surface (411) and a second abutting surface (412) which are oppositely arranged, the first abutting portion (3111) is exposed to the first abutting surface (411), and the second abutting portion (3211) is exposed to the second abutting surface (412); the surrounding part (622) surrounds the periphery of the tongue plate (41), the tongue plate (41) at least partially extends into the accommodating space (6220), and the first butt-joint part (3111) and the second butt-joint part (3211) are exposed in the accommodating space (6220).

2. The electrical connector (100) of claim 1, wherein: the electric connector (100) further comprises an insulating coating block (5), the insulating coating block (5) comprises a body part (52) and a protruding part (51) which is integrally formed with the body part (52) and protrudes forwards from the body part (52), and the protruding part (51) protrudes forwards below the tongue plate (41).

3. The electrical connector (100) of claim 2, wherein: the front end of the bulge part (51) is provided with a front end surface (511), the front end of the tongue plate (41) is provided with a front surface (410), and the front end surface (511) is close to the front surface (410).

4. The electrical connector (100) of claim 2, wherein: the insulating body (4) comprises a clamping groove (431), and the insulating coating block (5) comprises a clamping protrusion (50) embedded in the clamping groove (431).

5. The electrical connector (100) of claim 4, wherein: the clamping groove (431) is a dovetail groove or a T-shaped groove.

6. The electrical connector (100) of claim 1, wherein: the first positioning lugs (211) comprise a plurality of first lugs (2111) close to the tail end of the tongue plate (41), the first lugs (2111) are arranged at intervals along the width direction of the tongue plate (41), the first positioning groove (213) comprises a first slot (2131) located between every two adjacent first lugs (2111), and the first lugs (2111) are embedded in the tongue plate (41).

7. The electrical connector (100) of claim 6, wherein: the plurality of first positioning lugs (211) comprise a plurality of second lugs (2112) which are positioned at the rear ends of the plurality of first lugs (2111), the plurality of second lugs (2112) protrude upwards from the plurality of first lugs (2111), the plurality of second lugs (2112) are arranged at intervals along the width direction of the tongue plate (41), and the first positioning groove (213) comprises a second slot (2132) positioned between two adjacent second lugs (2112); the insulating body (4) comprises a first thickened portion (42) connected with the tongue plate (41), the first thickened portion (42) protrudes upwards and downwards from the tongue plate (41) along the height direction of the tongue plate (41), and the second bumps (2112) are embedded into the first thickened portion (42) and are exposed upwards to the first thickened portion (42).

8. The electrical connector (100) of claim 7, wherein: the plurality of first positioning lugs (211) comprise a plurality of third lugs (2113) which are positioned at the rear ends of the plurality of second lugs (2112), the plurality of third lugs (2113) protrude upwards from the plurality of second lugs (2112), the plurality of third lugs (2113) are arranged at intervals along the width direction of the tongue plate (41), and the first positioning groove (213) comprises a third slot (2133) positioned between two adjacent third lugs (2113); the insulating body (4) comprises a second thickened portion (43) connected with the first thickened portion (42), the second thickened portion (43) protrudes upwards and downwards from the first thickened portion (42) along the height direction of the tongue plate (41), and the third bumps (2113) are embedded in the second thickened portion (43) and are exposed upwards to the second thickened portion (43).

9. The electrical connector (100) of claim 8, wherein: the second positioning lugs (212) comprise fourth lugs (2121) close to the tail end of the tongue plate (41), the fourth lugs (2121) are arranged at intervals in the width direction of the tongue plate (41), the second positioning groove (214) comprises a fourth slot (2141) between every two adjacent fourth lugs (2121), and the fourth lugs (2121) are embedded in the tongue plate (41).

10. The electrical connector (100) of claim 9, wherein: the plurality of second positioning lugs (212) comprise a plurality of fifth lugs (2122) which are positioned at the rear ends of the plurality of fourth lugs (2121), the plurality of fifth lugs (2122) downwards protrude the plurality of fourth lugs (2121), the plurality of fifth lugs (2122) are arranged at intervals along the width direction of the tongue plate (41), and the second positioning groove (214) comprises a fifth slot (2142) positioned between two adjacent fifth lugs (2122); the fifth bumps (2122) are embedded in the first thickened portion (42) and exposed downward to the first thickened portion (42).

11. The electrical connector (100) of claim 10, wherein: the plurality of second positioning lugs (212) comprise a plurality of sixth lugs (2123) which are positioned at the rear ends of the plurality of fifth lugs (2122), the plurality of sixth lugs (2123) downwards protrude the plurality of fifth lugs (2122), the plurality of sixth lugs (2123) are arranged at intervals along the width direction of the tongue plate (41), and the second positioning groove (214) comprises a sixth slot (2143) positioned between two adjacent sixth lugs (2123); the sixth bumps (2123) are embedded in the second thickened portion (43) and exposed downward to the second thickened portion (43).

12. The electrical connector (100) of claim 2, wherein: the isolation part (1) comprises a second isolation sheet (12) which is integrally arranged with the first isolation sheet (11) and is perpendicular to the first isolation sheet (11), the first isolation sheet (11) extends along the horizontal direction, the second isolation sheet (12) extends along the vertical direction, and the length of the second isolation sheet (12) along the vertical direction is greater than that of the first isolation sheet (11) along the horizontal direction; the electrical connector (100) comprises a second insulating block (22) fixed on the second spacer (12); the second insulating block (22) comprises a plurality of first grooves (221) positioned on the outer side and a plurality of second grooves (222) positioned on the inner side; the first conductive terminals (31) comprise first mounting portions (312) perpendicular to the first butt-joint portion (3111), the first mounting portions (312) are positioned in the first grooves (221), and the length of the first mounting portions (312) is greater than that of the first butt-joint portion (3111); the second conductive terminals (32) comprise second mounting parts (322) perpendicular to the second butting part (3211), the second mounting parts (322) are positioned in the second grooves (222), and the length of the second mounting parts (322) is greater than that of the second butting part (3211); the second spacer (12) is positioned between the first mounting portion (312) and the second mounting portion (322).

13. The electrical connector (100) of claim 12, wherein: the plurality of first conductive terminals (31) comprise first tail portions (313) extending from the first mounting portion (312) in a bending mode, the plurality of second conductive terminals (32) comprise second tail portions (323) extending from the second mounting portion (322) in a bending mode, the first tail portions (313) and the second tail portions (323) are located at the bottom of the second insulating block (22), and the first tail portions (313) and the second tail portions (323) are coplanar.

14. The electrical connector (100) of claim 12, wherein: the insulating coating block (5) is coated and molded on the second insulating block (22), and the first mounting part (312) and the second mounting part (322) are embedded in the insulating coating block (5); the second spacer (12) comprises an abutting convex part (13) protruding out of the insulating coating block (5), and the abutting convex part (13) is in contact with the metal shell (6).

15. The electrical connector (100) of claim 14, wherein: the metal shell (6) comprises a first metal shell (61) and a second metal shell (62) matched with the first metal shell (61), the first metal shell (61) comprises a first main body part (611), a socket ring (612) and a connecting part (614) for connecting the first main body part (611) and the socket ring (612), the main body part (611) comprises an upper edge (6111), the socket ring (612) comprises a lower edge (6121) at the front end, and the connecting part (614) is connected with the upper edge (6111) and the lower edge (6121); the second metal shell (62) comprises a second main body part (621) and the surrounding part (622) connected with the second main body part (621); the first main body part (611) is attached to the front end face (511) of the insulating coating block (5), the second main body part (621) is attached to the rear end face (521) of the insulating coating block (5), and the sleeve ring (612) is sleeved on the surrounding part (622).

16. The electrical connector (100) of claim 15, wherein: the sleeve joint ring (612) is fixedly welded with the surrounding part (622); the first metal case (61) includes two first side walls (613) extending rearward from the first main body portion (611), and the second metal case (62) includes two second side walls (623) extending forward from the second main body portion (621); the first side wall (613) and the second side wall (623) are positioned at the left side and the right side of the insulating coating block (5), and the first side wall (613) and the second side wall (623) positioned at the same side are welded and fixed.

17. A method of manufacturing an electrical connector (100), the electrical connector (100) being an electrical connector (100) according to any one of claims 1 to 16, characterized in that: the manufacturing method comprises the following steps:

s1: providing a spacer (1), the spacer (1) comprising a first spacer (11) and a second spacer (12) perpendicular to the first spacer (11);

s2: providing a first insulating block (21) and a second insulating block (22), and correspondingly molding and fixing the first insulating block (21) and the second insulating block (22) on the first isolating sheet (11) and the second isolating sheet (12), wherein the first insulating block (21) comprises a plurality of first positioning lugs (211) and a plurality of second positioning lugs (212) which respectively protrude out of the first isolating sheet (11) towards two sides, a plurality of first positioning grooves (213) are formed on the plurality of first positioning lugs (211), and a plurality of second positioning grooves (214) are formed on the plurality of second positioning lugs (212);

s3: providing a plurality of first conductive terminals (31) and a plurality of second conductive terminals (32), wherein the first conductive terminals (31) comprise first extension portions (311), the first extension portions (311) comprise first flat-plate-shaped butting portions (3111), the second conductive terminals (32) comprise second extension portions (321), and the second extension portions (321) comprise second flat-plate-shaped butting portions (3211); -assembling and positioning the first extensions (311) in the respective first positioning slots (213), -assembling and positioning the second extensions (321) in the respective second positioning slots (214);

s4: providing an insulating body (4), and overmolding the insulating body (4) on the first insulating block (21), wherein the insulating body (4) comprises a tongue plate (41), the tongue plate (41) is provided with a first abutting surface (411) and a second abutting surface (412) which are oppositely arranged, the first abutting portion (3111) is exposed at the first abutting surface (411), and the second abutting portion (3211) is exposed at the second abutting surface (412);

s5: providing an insulating coating block (5), and coating and molding the insulating coating block (5) on the second insulating block (22); the insulating coating block (5) is partially coated and molded on the first conductive terminal (31) and the second conductive terminal (32), and the insulating coating block (5) is combined with the insulating body (4);

s6: providing a metal shell (6), and assembling the metal shell (6) to the insulating body (4), wherein the metal shell (6) comprises a surrounding part (622) surrounding the peripheries of the first butt-joint part (3111) and the second butt-joint part (3211), the surrounding part (622) is provided with a receiving space (6220), the surrounding part (622) surrounds the periphery of the tongue plate (41), the tongue plate (41) at least partially extends into the receiving space (6220), and the first butt-joint part (3111) and the second butt-joint part (3211) are exposed in the receiving space (6220).