CN106711723A - Electrical Connector Assembly - Google Patents

Abstract

The invention relates to an electrical connector assembly, which includes a first connector and a second connector for connecting a mother circuit board, the first connector includes an insulating body and a first terminal group accommodated in the insulating body, The second terminal group and the metal intermediate spacer, the insulating body includes a main body and a tongue protruding forward from the main body, and the electrical connector assembly also includes a flexible circuit connecting the first connector and the second connector board, the second connector is a board-to-board connector, the second connector is conveniently docked with the board-to-board connector on the mother circuit board, and the flexible circuit board can easily and conveniently change the first connector on the electronic device The location inside meets the requirements of various installation heights (offsets), without the need to open new molds, which is conducive to reducing product types and reducing costs.

Description

Electrical Connector Assembly

technical field

The invention relates to an electrical connector assembly, in particular to an electrical connector assembly with a USB Type-C interface.

Background technique

With the release of the USB Type-C interface, it has high-frequency transmission and supports positive and negative plug-in functions. There are more and more electronic devices (mobile phones, tablets, and notebook computers) using the USB Type-C interface. Type-C interfaces have different requirements, especially the installation height (offset) requirements are different, which leads to connector manufacturers opening a lot of new molds, resulting in a wide variety of products, which directly leads to increased costs.

Contents of the invention

The object of the present invention is to provide an electrical connector assembly with reduced product variety and reduced cost.

In order to achieve the aforementioned object, the present invention adopts the following technical solutions: an electrical connector assembly, which includes a first connector and a second connector for connecting a mother circuit board, the first connector includes an insulating body and is accommodated in The first terminal group, the second terminal group and the metal intermediate spacer in the insulating body. The insulating body includes a main body and a tongue protruding forward from the main body. The middle spacer is located between the first terminal group and the second Between the two terminal groups, the first and second terminal groups respectively have contact parts and welding feet extending out of the insulating body, the contact parts of the first terminal group are arranged on the upper surface of the tongue plate, and the second terminal The contact part of the group is arranged on the lower surface of the tongue plate. The second connector includes an insulating base body and a conductive terminal accommodated in the insulating base body. The insulating base body is provided with a butt joint hole, and the conductive terminal has a The butt joint part inside and the soldering part for soldering on the mother circuit board, the electrical connector assembly also includes a flexible circuit board connecting the first connector and the second connector, and the flexible circuit board has an opposite first end and a second end, the surface of the first end is arranged with a first welding piece welded together with the welding leg, and the surface of the second end is arranged with a second welding piece welded together with the welding part, the The flexible circuit is provided with a connection line connecting the first soldering tab and the second soldering tab, and the second connector is a board-to-board connector.

Further, the welding feet of the first and second terminal groups are respectively arranged in a row along the left and right directions, the welding feet of the second terminal group are located below the welding feet of the first terminal group, and the upper surface of the first end A row of first soldering pieces are respectively arranged on the lower surface, and the first end is clamped between the soldering legs of the first terminal group and the second terminal group.

Further, the second soldering tabs are located on the upper or lower surface of the flexible circuit board, and the second soldering tabs are arranged in two rows, front and rear, and the soldering parts of one row are connected to the connection lines in the form of via holes.

Further, the welding parts are located on the bottom surface of the insulating base, and are arranged in two rows, front and rear. The welding parts in the front row protrude forward from the insulating base, and the welding parts in the rear row protrude backward from the insulating base. .

Further, the left and right ends of the intermediate spacer have tails extending backwards out of the insulating body, the tails are located outside the welding legs and are in a row with the welding legs of the first terminal group, and the tails are connected to the first welding leg. The feet are welded together.

Further, the electrical connector assembly also includes a first shell for accommodating the insulating body, the first shell is a hollow cylindrical structure in front and back, the first shell is provided with an insertion hole, and the tongue plate is positioned at the hole.

Further, the electrical connector assembly also includes a second shell, the front faces of the first and second shells tend to be aligned, and the second shell includes a housing part and fixing plates protruding from the left and right sides of the housing part , the housing part is also set as a front and rear hollow cylindrical structure, sleeved on the first shell, the shell part and the first shell are bonded and fixed by glue, and the fixing plate is set as a horizontal plate structure, Above the bottom surface of the housing part, the fixing plate is provided with a fixing hole penetrating up and down.

Further, the tongue plate includes a front tongue plate and a rear tongue plate connected front and back, the thickness and width of the front tongue plate are smaller than that of the rear tongue plate, the contact parts are arranged on the upper and lower surfaces of the front tongue plate, the front tongue plate Both sides of the tongue plate are provided with locking grooves, and the middle septum protrudes into the locking grooves.

Further, the insulating body includes a first body, a second body, and a third body injection-molded on the first body and the second body, the first terminal group is insert-molded on the first body, and the second terminal The group is insert-molded on the second body.

Further, the first connector is a USB Type-C receptacle, and the flexible circuit board is replaced by a flexible flat cable.

The second connector of the electrical connector assembly of the present invention is a board-to-board connector, which is convenient for docking with the board-to-board connector on the mother circuit board, and the flexible circuit board has high wiring density, light weight, thin thickness, and small space occupation , good bending properties, etc., can easily and conveniently change the position of the first connector in the electronic equipment, meet the requirements of various installation heights (offset), no need to open new molds, which is conducive to reducing product types and reducing cost.

Description of drawings

FIG. 1 is a schematic perspective view of an electrical connector assembly of the present invention.

FIG. 2 is an exploded perspective view of the electrical connector assembly of the present invention.

3 is a schematic perspective view of a first connector of the electrical connector assembly of the present invention.

4 is a schematic perspective view of the first connector of the electrical connector assembly of the present invention, without showing the second housing.

5 is a schematic perspective view of the first connector of the electrical connector assembly of the present invention, without showing the first shell and the second shell.

6 is a top view of the flexible circuit board of the electrical connector assembly of the present invention.

7 is a bottom view of the flexible circuit board of the electrical connector assembly of the present invention.

FIG. 8 is a schematic perspective view of a second connector of the electrical connector assembly of the present invention.

9 is a bottom view of the second connector of the electrical connector assembly of the present invention.

detailed description

1 to 9, the present invention provides an electrical connector assembly 100 for connecting to a mother circuit board (not shown), which includes a first connector 1, a second connector 2 and a A flexible circuit board 3 (FPC) between the first connector 1 and the second connector 2 . The first connector 1 is a USB Type-C female seat, and the second connector 2 is a board-to-board connector, which is set as a female seat or a male seat, and is used to connect and dock with the board-to-board connection on the motherboard to realize the first Signal transmission between connector 1 and the mother circuit board.

Referring to FIGS. 1 to 5 , the first connector 1 includes an insulating body 10 , a first terminal set 20 , a second terminal set 30 , a metal middle spacer 40 , a first shell 50 and a second shell 60 .

The insulating body 10 includes a main body 11 and a tongue 12 protruding forward from the main body 11. The tongue 12 includes a front tongue 121 and a rear tongue 122 connected front and back. The thickness and width of the front tongue 121 are smaller than that of the rear tongue. 122 , the left and right sides of the front tongue plate 121 are provided with locking recesses 123 . The insulating body 10 is also composed of a first body 14 , a second body 15 and a third body 16 , the first body 14 is located above the second body 15 , and the third body 16 is injection molded on the first body 14 and the second body 15 .

The first terminal set 20 is insert-molded on the first body 14 , and the second terminal set 30 is insert-molded on the second body 15 . The first terminal set 20 and the second terminal set 30 respectively include contact portions 21 , 31 at the front end and soldering feet 22 , 32 at the rear end. The contact portions 21 of the first terminal group 20 are arranged on the upper surface of the front tongue plate 121 , and the welding feet 22 extend backward out of the insulating body 10 and are arranged in a row. The contact parts 32 of the second terminal group 30 are arranged on the lower surface of the front tongue plate 121 , and the welding legs 32 extend backward out of the insulating body 10 , also arranged in a row, and are located below the welding legs 22 of the first terminal group 20 .

The middle partition 40 is clamped and fixed between the first body 14 and the second body 15, and is located between the first terminal group 20 and the second terminal group 30 at the same time. The left and right sides of the middle partition 40 are exposed to the front tongue plate 121 in the locking groove 123, used to lock together with the docking connector (not shown), the left and right ends of the middle partition 40 are provided with two tails 42 extending backward from the insulating body 10, and the two tails 42 are located The outer sides of the first and second terminal groups 20, 30 welding feet 22, 32 are arranged in a row with the welding feet 22 of the first terminal group 20, and the third body 16 is separated between the first body 14, the second body 15 and the middle body. The sheets 40 are injection molded after being assembled together.

The first shell 50 and the second shell 60 are made of metal or non-metallic materials, and the front faces of the two tend to be aligned. The insulating body 10 is accommodated in the first shell 50, and the insulating body 10 protrudes backward from the first shell. 50 and the second shell 60. The first shell 50 is configured as a front and rear hollow cylindrical structure, which is provided with an insertion hole 52 , and the tongue plate 12 is located in the insertion hole 52 . The second shell 60 includes a shell part 61 and a fixing plate 62 protruding from the left and right sides of the shell part 61. The shell part 61 is also arranged as a hollow cylindrical structure in the front and back, and is sleeved on the first shell 50. It is also fixed and sealed by glue 63. The fixing plate 62 is arranged as a horizontal plate structure, which is higher than the bottom surface of the housing portion 61. The fixing plate 62 is provided with a fixing hole 621 penetrating up and down for fixing the first connector 1 to the mother circuit by screws (not shown). board or other location.

8 and 9, the second connector 2 includes an insulating base body 70 and a number of conductive terminals 72 accommodated in the insulating base body 70. The top surface of the insulating base body 70 is recessed with a butt hole 71, and the conductive terminals 72 It has a butt joint portion 73 located in the joint hole 71 and a horizontal welding portion 74 arranged on the bottom surface of the insulating base body 70. The welding portions 74 are arranged in two rows front and back, and the welding portion 74 in the front row also protrudes forward from the insulating base body 70. , the welding portion 74 of the rear row also protrudes from the insulating base body 70 backward.

6 to 7, the flexible circuit board 3 includes a first end 81 and a second end 82 opposite to each other. A row of first soldering pieces 811 are respectively arranged on the upper and lower surfaces of the first end 81. The upper surface of 82 is arranged with two rows of second soldering tabs 812 spaced front and back. The first soldering tabs 811 and the second soldering tabs 812 are electrically connected through the connection line 813 of the flexible circuit board 2. The rear row of soldering tabs 74 It is connected to the connection circuit 813 by means of a via hole. In other embodiments, two rows of second soldering pads 812 are located on the lower surface of the flexible circuit board 3 .

The first end 81 is clamped between the welding feet 22 of the first terminal group 20, the tail portion 32 of the intermediate spacer 40 and the welding feet 32 of the second terminal group 30, each welding feet 22, 32, the tail portion 32 and the first welding The pieces 811 are welded together one by one, the second connector 2 is located at the second end 82, the welding part 72 and the second welding pieces 812 are welded together one by one, so that the first connector 1 is connected to the second through the flexible circuit board 3 Device 2 achieves electrical conduction.

The second connector 2 is a board-to-board connector, which is convenient for docking with the board-to-board connector on the mother circuit board. The flexible circuit board 3 has high wiring density, light weight, thin thickness, small footprint, and good bendability. etc., the position of the first connector 1 in the electronic device can be easily and conveniently changed to meet the requirements of various installation heights (offsets), and no new molds are required, which is beneficial to reduce product types and cost.

In other embodiments, the flexible circuit board 3 can be replaced by a flexible flat wire, which can also achieve the purpose of the present invention.

Although preferred embodiments of the present invention have been disclosed for illustrative purposes, those of ordinary skill in the art will appreciate that various Improvements, additions, and substitutions are possible.

Claims (10)

1. An electrical connector assembly, which includes a first connector and a second connector for connecting a mother circuit board, the first connector includes an insulating body and a first terminal group housed in the insulating body, a second Two terminal groups and a metal middle spacer, the insulating body includes a main body and a tongue protruding forward from the main body, the middle spacer is located between the first terminal group and the second terminal group, the first , The second terminal group has a contact portion and a welding foot extending out of the insulating body, the contact portion of the first terminal group is arranged on the upper surface of the tongue plate, and the contact portion of the second terminal group is arranged under the tongue plate On the surface, the second connector includes an insulating seat body and a conductive terminal accommodated in the insulating seat body, the insulating seat body is provided with a butt joint hole, and the conductive terminal has a butt joint part located in the butt joint hole and is used for welding to the female The welding part on the circuit board is characterized in that: the electrical connector assembly further includes a flexible circuit board connecting the first connector and the second connector, the flexible circuit board has opposite first ends and second ends, The surface of the first end is arranged with a first soldering piece welded together with the soldering feet, the surface of the second end is arranged with a second soldering piece welded together with the soldering portion, and the flexible circuit is provided with a connection to the first A connection circuit between a soldering piece and a second welding piece, and the second connector is a board-to-board connector. 2. The electrical connector assembly according to claim 1, wherein the welding feet of the first and second terminal groups are respectively arranged in a row along the left and right directions, and the welding feet of the second terminal group are located at the first Below the soldering legs of a terminal group, a row of first soldering pieces are respectively arranged on the upper surface and the lower surface of the first terminal, and the first terminal is clamped between the soldering legs of the first terminal group and the second terminal group between. 3. The electrical connector assembly according to claim 1, wherein the second soldering piece is located on the upper surface or the lower surface of the flexible circuit board, and the second welding piece is arranged in two rows before and after, and one row of welding parts Connect with the connection line in the form of via holes. 4. The electrical connector assembly according to claim 1, wherein the welding parts are located on the bottom surface of the insulating base and are arranged in two rows, front and rear, and the welding parts in the front row protrude forward from the insulating base , the welding portion of the rear row protrudes backward from the insulating seat body. 5. The electrical connector assembly according to claim 1, characterized in that: the left and right ends of the middle septum have tails extending backward out of the insulating body, the tails are located outside the soldering pins, and are connected to the first terminal group The soldering legs of the tails are arranged in a row, and the tails are soldered together with the first soldering legs. 6. The electrical connector assembly according to claim 1, characterized in that: the electrical connector assembly further comprises a first shell for accommodating the insulating body, the first shell is a hollow cylindrical structure front and rear, the first shell A casing is provided with an insertion hole, and the tongue plate is located in the insertion hole. 7. The electrical connector assembly according to claim 6, wherein the electrical connector assembly further comprises a second shell, the front faces of the first and second shells tend to be aligned, and the second shell comprises a shell The body part and the fixing plates protruding from the left and right sides of the housing part, the housing part is also set as a front and rear hollow cylindrical structure, which is sleeved on the first shell, and the shell part and the first shell are glued together Bonding and fixing, the fixing plate is arranged as a horizontal plate structure, higher than the bottom surface of the housing part, and the fixing plate is provided with fixing holes penetrating up and down. 8. The electrical connector assembly according to claim 1, wherein the tongue plate includes a front tongue plate and a rear tongue plate connected front and back, the thickness and width of the front tongue plate are smaller than that of the rear tongue plate, and the The contact parts are arranged on the upper and lower surfaces of the front tongue plate, and the two sides of the front tongue plate are provided with locking grooves, and the middle partition protrudes into the locking grooves. 9. The electrical connector assembly according to claim 1, wherein the insulating body comprises a first body, a second body and a third body injection-molded on the first body and the second body, the first body A terminal set is insert-molded on the first body, and the second terminal set is insert-molded on the second body. 10. The electrical connector assembly according to claim 1, wherein the first connector is a USB Type-C receptacle, and the flexible circuit board is replaced by a flexible flat cable.