Plug electric connector assembly

Abstract

The utility model relates to a plug electric connector assembly, which mainly comprises a forming piece, a plug connector, a first inner mold, a shell, a rubber shell, a second inner mold and an outer mold, a penetrating groove in the forming piece is used for a flexible cable connecting wire to penetrate, and grounding parts and a plurality of conductive connection parts are respectively arranged at two-sided positions and one-sided positions of one end of the flexible cable connecting wire. The conductive connection portions and the grounding portions are connected with the conductive contact portions and the grounding contact portions of one board surface of a circuit board arranged on the plug connector, and because the flexible flat cable connecting line does not need to be subjected to wire processing (including the processes of peeling, braiding, core wire stripping, tin dipping and the like), only the circuit board on the connector needs to be subjected to single-face hot pressing. And the manufacturing cost and the labor cost are greatly reduced.

Description

Technical Field

[0001] The utility model relates to a connector assembly, in particular to a plug electrical connector assembly. Background Art

[0002] The signal transmission cables commonly used in plug-in electrical connectors (Type-C, USB 2.0, USB 3.0, or HDMI) all require stripping, braiding, stripping, and tinning. Therefore, the overall production cost and labor costs cannot be reduced.

[0003] At the same time, because the cable contains many transmission lines, when the function of the plug electrical connector is stronger, that is, when it is used to transmit high-speed signals and large currents, the number of transmission lines inside it will increase relatively, which makes the overall cable heavier. It cannot improve the weight problem or achieve the lightweight effect. Utility Model Content

[0004] The utility model provides a plug electrical connector assembly, which includes: a molded part, which defines a passage groove for a flexible cable to pass through, and one end of the flexible cable is provided with a grounding portion at a double-sided position and a plurality of conductive portions at a single-sided position; a plug connector, which is connected to a circuit board, wherein one surface of the circuit board is provided with a plurality of conductive contact portions respectively in contact with each of the conductive portions and a grounding contact portion is provided on each of the two surfaces, one of the grounding contact portions being in contact with the grounding portion; a first inner mold for fixing The position of the circuit board; a shell covering the outside of the first inner mold and the portion of the flexible flat connecting line where each conductive portion is connected to each conductive contact portion, and at the same time contacts the grounding portion that is not in contact with the grounding contact portion and the grounding contact portion that is not in contact with the grounding portion; a plastic shell covering the shell and the portion of the molded part adjacent to the shell; a second inner mold covering the portion of the rear end of the plastic shell and the portion of the molded part adjacent to the rear end; and an outer mold for covering the second inner mold and the portion of the molded part adjacent to the second inner mold.

[0005] Preferably, the first inner mold includes: an upper mold and a lower mold, and the upper mold and the lower mold are respectively located on the upper and lower surfaces of the circuit board.

[0006] Preferably, the shell includes: a first covering body covering the first inner mold, a second covering body connected to one end of the first covering body for covering one end of the flexible flat connecting line and the circuit board connected to the flexible flat connecting line, and a ring located on one side of the first covering body for the plug connector to pass through.

[0007] Preferably, the plastic shell further includes a plug-in portion for the plug connector to pass through and corresponding to the position of the first covering body, a middle section connected to the plug-in portion and corresponding to the position of the second covering body, and a connecting portion connected to the middle section and covering the molded part, wherein the connecting portion is covered by the second inner mold.

[0008] Preferably, it further includes a pressing structure, which includes an elastic section arranged on the top surface of the plug-in portion, a latching structure arranged on the elastic section, and a pressing section connected to the elastic section and extending toward the middle section and located on the top surface.

[0009] Preferably, a limiting structure is included, which is arranged on the top surface of the middle section and is used to limit the height position of the pressing section.

[0010] Preferably, the plug connector is Type-C, USB2.0, USB3.0 or HDMI.

[0011] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0012] 1. A molded part is used to thread the flexible flat cable. Multiple conductive portions are set on one side of one end of the flexible flat cable. Each conductive portion is connected to the conductive contact portions on one surface of the circuit board set on the plug connector. Since the flexible flat cable does not require wire processing (including stripping, braiding, core stripping, tinning, etc.), only the circuit board on the connector needs to be hot-pressed on one side, which greatly reduces production costs and labor costs.

[0013] 2. Using soft-flat cable as the signal transmission wire reduces the overall weight by 40%-50%, which is more conducive to the purpose of lightweighting of vehicle-mounted products. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the present utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the molded part combined with the flexible flat cable of the present invention.

[0016] Figure 3 This is a schematic diagram of the structure of the flexible flat cable connected to a single-sided circuit board according to the present invention.

[0017] Figure 4 This is a schematic structural diagram of the first inner mold forming process of the present invention.

[0018] Figure 5 This is a schematic diagram of the structure of the housing installation of the utility model.

[0019] Figure 6 This is a schematic diagram of the structure of the plastic shell installation of the utility model.

[0020] Figure 7 This is a schematic structural diagram of the second inner mold forming process of the present invention.

[0021] Figure 8 It is a structural diagram of the outer mold forming of the utility model.

[0022] Explanation of symbols

[0023] Plug electrical connector assembly 1, molded part 10, penetration slot 100, plug connector 11, penetration slot 100, first inner mold 12, upper mold 120, lower mold 122, shell 13, first covering body 130, second covering body 132, ring 134, plastic shell 14, plug-in portion 140, middle section 142, coupling portion 144, second inner mold 15, outer mold 16, pressing structure 17, elastic section 170, pressing section 172, latch structure 174, limiting structure 18, flexible flat cable 2, conductive portion 20, grounding portion 22, circuit board 3, conductive contact portion 30, grounding contact portion 32. DETAILED DESCRIPTION

[0024] refer to Figure 1 The figure is a three-dimensional schematic diagram of the present invention. Figures 2 to 8 , which are structural diagrams of the molded part combined with the flexible flat cable, the structural diagram of the flexible flat cable combined with the circuit board on one side, the structural diagram of the first inner mold, the structural diagram of the shell installation, the structural diagram of the plastic shell installation, the structural diagram of the second inner mold and the structural diagram of the outer mold. The utility model is a plug electrical connector assembly, the plug electrical connector assembly 1 mainly includes: a molded part 10, a plug connector 11, a first inner mold 12, a shell 13, a plastic shell 14, a second inner mold 15 and an outer mold 16, wherein the insertion groove 100 defined by the molded part 10 is for the flexible flat cable 2 to pass through, and one end of the flexible flat cable 2 is respectively provided with a grounding portion 22 on both sides and a plurality of conductive portions 20 on a single side, the plug connector 11 (Type-C, USB2.0, USB3.0 or HDMI) is connected to the circuit board 3, and one of the surfaces of the circuit board 3 A plurality of conductive contact portions 30 and a grounding contact portion 32 are provided on each side, one of which is in contact with the grounding portion 22. The flexible flat cable 2 is connected to the conductive contact portions 30 on the single side of the circuit board 3 through the conductive portions 20 on the single side, and the grounding portion 22 is in contact with the grounding contact portion 32 on the single side of the circuit board 3. Since the flexible flat cable 2 does not need to undergo the wire processing steps of traditional wires (including stripping, braiding, core stripping, tinning, etc.), it only needs to be hot-pressed on the circuit board on the single side of the connector, thereby greatly streamlining the production cost and labor cost.

[0025] The wire used for signal transmission is mainly the above-mentioned flexible flat cable 2, and the following structure and method are adopted to form the plug electrical connector assembly 1 of the present invention. After the flexible flat cable 2 is passed through the groove 100 and combined with the molded part 10, the first inner mold 12 is used to fix the position of the circuit board 3, wherein the first inner mold 12 includes: an upper mold 120 and a lower mold 122. The upper mold 120 and the lower mold 122 are respectively located on the upper and lower surfaces of the circuit board 3, and are fixed in an upper and lower fixing manner. The shell 13 covers the outside of the first inner mold 12 and the parts of the flexible flat cable 2 where each conductive part 20 is connected to each conductive contact part 30, and at the same time contacts the grounding part 22 that is not in contact with the grounding contact part 32 and the grounding contact part 32 that is not in contact with the grounding part 22, thereby achieving the purpose of eliminating noise through the shell 13. The shell 13 includes: a first covering body 130, a second covering body 132 and a ring 134, wherein the first covering body 130 is used to cover the first inner mold 12, the second covering body 132 connected to one end of the first covering body 130 is used to cover one end of the flexible flat cable 2 and the circuit board 3 connected to the flexible flat cable 2, and the ring 134 located on one side of the first covering body 130 is used for the plug connector 11 to pass through.

[0026] After the above-mentioned shell 13 process is completed, the plastic shell 14 is used to cover the shell 13 and the part of the molded part 10 adjacent to the shell 13, wherein the plastic shell 14 further includes: a plug portion 140, a middle portion 142 and a connecting portion 144. During installation, the plug portion 140 is for the plug connector 11 to pass through and corresponds to the position of the first covering body 130, the middle portion 142 is connected to the plug portion 140 and corresponds to the position of the second covering body 132, and the connecting portion 144 is connected to the middle portion 142 and covers part of the molded part 10, wherein the connecting portion 144 is connected to the middle portion 142 and covers part of the molded part 10. 4 (the rear end of the plastic shell 14) is filled and enclosed by the second inner mold 15. During filling, to prevent the pressure from causing the liquid second inner mold 15 to squeeze through the gap and reach the front plug connector 11, the first inner mold 12 fixed to the circuit board 3 as described above can effectively limit the position of the liquid second inner mold 15 to prevent it from squeezing and deforming the plug connector 11. At the same time, the second inner mold 15 also encloses the portion of the molded part 10 adjacent to the second inner mold 15. Finally, the outer mold 16 encloses the second inner mold 15 and part of the molded part 10.

[0027] As can be seen from the above, the plug electrical connector assembly 1, in which the wire material is mainly a flexible flat cable 2, has the above-mentioned structure and process steps, so that the plug connector 11 connected to the flexible flat cable 2 does not need to perform wire processing (including stripping, braiding, core stripping, tinning, etc.) when processing the wire material. Instead, it only needs to perform single-sided hot pressing on the circuit board on the connector, which greatly reduces the production cost and labor cost. Since the flexible flat cable 2 is used as the signal transmission wire, the overall weight is reduced by 40%-50%, which is more conducive to the goal of lightweighting of automotive products.

[0028] At the same time, the first inner mold 12 , the housing 13 , the plastic shell 14 , the second inner mold 15 and the outer mold 16 strengthen the overall structure of the plug connector 11 and thus can be used for in-vehicle connection.

[0029] On the other hand, a pressing structure 17 and a limiting structure 18 are provided on the plastic shell 14. The pressing structure 17 mainly includes an elastic section 170 and a pressing section 172. The elastic section 170 is provided on the top surface of the plug-in portion 140. The pressing section 172 is connected to the elastic section 170 and extends toward the middle section 142 and is located on the top surface. The limiting structure 18 is provided on the top surface of the middle section 142 and is used to limit the height position of the pressing section 172. When the plug electrical connector assembly 1 is in use, the insertion portion 140 in the plastic shell 14 can accurately align with the hole to be inserted, while achieving the purpose of guidance and anti-misalignment. After being fully inserted, the latch structure 174 on the elastic section 170 can effectively engage and fix with the host structure and cannot be disengaged. When it is desired to be disengaged, it is only necessary to press the pressing section 172 downward to link the elastic section 170 downward, so that the latch structure 174 moves downward, and then disengages the latch structure in the host structure, thereby achieving good and safe insertion and removal. Through the above mechanism, the plug connector 11 will not be disengaged due to prolonged vibration when used in a vehicle environment, thereby ensuring stable signal transmission.

[0030] The limiting structure 18 mainly limits the height position of the pressing section 172. When the pressing section 172 is hooked and pulled upward by the surrounding wires or improper use, the limiting structure 18 can prevent the pressing section 172 from being pulled upward excessively, causing the elastic section 170 to be damaged, deformed, or broken.

Claims

1. A plug electrical connector assembly, characterized in that : A molded part defines a passage slot for a flexible cable to pass through, wherein one end of the flexible cable is provided with a grounding portion on both sides and a plurality of conductive portions on one side; a plug connector connected to a circuit board, wherein one surface of the circuit board is provided with a plurality of conductive contact portions respectively contacting the conductive contact portions and both surfaces are provided with a ground contact portion, wherein one of the ground contact portions is in contact with the ground portion; a first inner mold for fixing the position of the circuit board; a housing covering the outer side of the first inner mold and the portion of the flexible flat cable where the conductive portions are connected to the conductive contact portions, and simultaneously contacting the grounding portion that is not in contact with the grounding contact portion and the grounding contact portion that is not in contact with the grounding portion; a plastic shell covering the shell and a portion of the molded part adjacent to the shell; a second inner mold covering the rear end portion of the plastic shell and the portion of the molded part adjacent to the rear end; and An outer mold is used to cover the second inner mold and the portion of the molded part adjacent to the second inner mold.

2. The plug electrical connector assembly according to claim 1, characterized in that :The first inner mold includes: an upper mold and a lower mold, and the upper mold and the lower mold are respectively located at the upper and lower surfaces of the circuit board.

3. The plug electrical connector assembly according to claim 1, wherein The shell includes: a first covering body covering the first inner mold, a second covering body connected to one end of the first covering body for covering one end of the flexible flat connecting line and the circuit board connected to the flexible flat connecting line, and a ring located on one side of the first covering body for the plug connector to pass through.

4. The plug electrical connector assembly according to claim 3, characterized in that The plastic shell further includes a plug-in portion for the plug connector to pass through and corresponding to the position of the first covering body, a middle section connected to the plug-in portion and corresponding to the position of the second covering body, and a connecting portion connected to the middle section and covering the molded part, wherein the connecting portion is covered by the second inner mold.

5. The plug electrical connector assembly according to claim 4, characterized in that : It further includes a pressing structure, which includes an elastic section arranged on the top surface of the plug-in portion, a latching structure arranged on the elastic section, and a pressing section connected to the elastic section and extending toward the middle section and located on the top surface.

6. The plug electrical connector assembly according to claim 5, characterized in that : Includes a limiting structure, which is arranged on the top surface of the middle section and is used to limit the height position of the pressing section.

7. The plug electrical connector assembly according to claim 1, wherein :The plug connector is Type-C, USB2.0, USB3.0 or HDMI.

Images