Low-cost high-reliability large-current TYPE-C fast charging female head and electronic product

Abstract

The invention discloses a low-cost high-reliability large-current TYPE-C fast-charging female head and an electronic product, the low-cost high-reliability large-current TYPE-C fast-charging female head comprises an insulation body, a female head terminal group and a shell, the female head terminal group comprises a first GND terminal, a first VBUS terminal, a second VBUS terminal and a second GND terminal, the front sides of the welding pins of the 4PIN terminals are connected with vertical plate parts, and the welding pins of the 4PIN terminals are connected with vertical plate parts. The top and the bottom of the vertical plate part are used as a first GND upper-row contact part, a first GND lower-row contact part, a first VBUS upper-row contact part, a first VBUS lower-row contact part, a second VBUS upper-row contact part, a second VBUS lower-row contact part, a second GND upper-row contact part and a second GND lower-row contact part respectively, so that 8PIN current transmission terminal contacts of a TYPE-C standard are provided through the 4PIN terminal, and the current transmission efficiency is improved. The terminal group is compatible with a fast charging protocol pushed by a USB association, the structure is simple and ingenious, the terminal group is convenient to integrally design and manufacture, the cost is effectively reduced, the sectional area of a contact part is effectively increased, the larger current transmission requirement is met, and the structural strength, the durability and the reliability are enhanced.

Description

Technical Field

[0001] The present invention relates to the field of TYPE-C fast charging female connector technology, and in particular to a low-cost, high-reliability, large-current TYPE-C fast charging female connector and electronic products. Background Art

[0002] With the promotion of TYPE-C connectors, it has become very common to use TYPE-C interfaces to facilitate charging of electronic devices. According to the USB Association, the standard TYPE-C female head requires 24PIN terminals, which include charging terminals, data transmission terminals, etc. There are many terminals, the adjacent terminals are densely packed, the spacing is small, and the manufacturing process is complicated.

[0003] Based on this, the industry has improved and designed some simple TYPE-C connectors for use only for charging and without data transmission functions (power sockets, cars, power banks, wireless headphones, etc.), which mainly reduces the number of terminals, such as: 1. There is a TYPE-C 6PIN charging female connector on the market, which includes 2 PIN GND terminals, 2 PIN VBUS terminals and 2PIN CC terminals, but it cannot achieve fast charging function.

[0004] 2. CN 209344410 U discloses a Type C 10PIN female socket, which has a standard 8-PIN (4-PIN GND terminal and 4-PIN VBUS terminal) charging terminal and a 2-PIN CC terminal, and can support the fast charging protocol. However, its terminal module is arranged in an insulating body in two rows, the upper and lower rows, and the terminal module includes a first PIN pin (A1), a second PIN pin (A4), a third PIN pin (A5), a fourth PIN pin (A9), and a fifth PIN pin (A12) in the upper row, and also includes a sixth PIN pin (B12), a seventh PIN pin (B9), an eighth PIN pin (B5), a ninth PIN pin (B4), and a tenth PIN pin (B1) in the lower row; the two PIN pins of the first PIN pin (A1) and the sixth PIN pin (B12) are simultaneously soldered to a pad position of a PCB circuit board; the two PIN pins of the second PIN pin (A4) and the seventh PIN pin (B9) are simultaneously soldered to a pad position of a PCB circuit board a pad position; a third PIN pin (A5) soldering foot is separately soldered to a pad position of a PCB circuit board; an eighth PIN pin (B5) soldering foot is separately soldered to a pad position of a PCB circuit board; two PIN pin soldering feet of a fourth PIN pin (A9) and a ninth PIN pin (B4) are simultaneously soldered to a pad position of a PCB circuit board; two PIN pin soldering feet of a fifth PIN pin (A12) and a tenth PIN pin (B1) are simultaneously soldered to a pad position of a PCB circuit board; its terminal structure is not simplified enough, the number of soldering feet is large, the soldering is troublesome, and the soldering of smaller soldering feet is not conducive to further controlling the process yield; and the arrangement of multiple terminals in the upper and lower rows of terminals is limited by the standard size of the connector, and the size of each terminal is small, which is difficult to meet the requirements of larger current transmission.

[0005] Therefore, it is necessary to study a new technical solution to solve the above problems. Summary of the invention

[0006] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide a low-cost, high-reliability, large-current TYPE-C fast-charging female connector and electronic product, which utilizes the top and bottom of the vertical plate portion of the same PIN terminal as the upper and lower contact portions of the corresponding terminals. In this way, the 4PIN terminal provides TYPE-C standard 8PIN current transmission terminal contacts, which is compatible with the fast charging protocol launched by the USB Association. It has a simple and ingenious structure, is convenient for the integrated design and production of the terminal group, effectively reduces costs, and effectively increases the cross-sectional area of ​​the contact portion to meet greater current transmission requirements, and enhances structural strength, durability and reliability.

[0007] To achieve the above purpose, the present invention adopts the following technical solutions: A low-cost, high-reliability, high-current TYPE-C fast-charging female connector, comprising an insulating body, a female terminal group arranged on the insulating body, and a shell wrapped around the outer periphery of the insulating body, the insulating body having a tongue, the female terminal group exposed on the upper and lower sides of the tongue, and an annular plug interface formed between the inner wall surface of the shell and the outer peripheral surface of the tongue; The female terminal group includes: A first GND terminal, comprising a first GND welding foot and a first vertical plate portion integrally connected to the front side of the first GND welding foot, wherein the top and the bottom of the first vertical plate portion serve as a first GND upper row contact portion and a first GND lower row contact portion, respectively; A first VBUS terminal, comprising a first VBUS soldering foot and a second vertical plate portion integrally connected to the front side of the first VBUS soldering foot, wherein the top and the bottom of the second vertical plate portion serve as a first VBUS upper row contact portion and a first VBUS lower row contact portion, respectively; A second VBUS terminal, comprising a second VBUS soldering foot and a third vertical plate portion integrally connected to the front side of the second VBUS soldering foot, wherein the top and the bottom of the third vertical plate portion serve as a second VBUS upper row contact portion and a second VBUS lower row contact portion, respectively; The second GND terminal includes a second GND welding foot and a fourth vertical plate portion integrally connected to the front side of the second GND welding foot, and the top and bottom of the fourth vertical plate portion serve as the second GND upper row contact portion and the second GND lower row contact portion respectively.

[0008] As a preferred solution, the female terminal group further includes: A first CC terminal including a first CC welding leg and a first CC upper row contact portion integrally connected to a front side of the first CC welding leg; A second CC terminal including a second CC welding foot and a second CC lower row contact portion integrally connected to a front side of the second CC welding foot; Moreover, the first GND upper row contact portions, the first VBUS upper row contact portions, the first CC upper row contact portions, the second VBUS upper row contact portions and the second GND upper row contact portions are sequentially arranged side by side with an even spacing, and the first GND lower row contact portions, the first VBUS lower row contact portions, the second CC lower row contact portions, the second VBUS lower row contact portions and the second GND lower row contact portions are sequentially arranged side by side with an even spacing.

[0009] As a preferred solution, the first GND welding pin, the first VBUS welding pin, the first CC welding pin, the second CC welding pin, the second VBUS welding pin and the second GND welding pin are arranged at an even distance.

[0010] As a preferred solution, the front side of the first GND welding foot is connected to a first horizontal plate portion, and the first vertical plate portion is bent upward or downward from one side of the first horizontal plate portion; The front side of the first VBUS welding leg is connected to a second horizontal plate portion, and the second vertical plate portion is formed by bending upward or downward from one side of the second horizontal plate portion; The front side of the second VBUS welding leg is connected to a third horizontal plate portion, and the third vertical plate portion is bent upward or downward from one side of the third horizontal plate portion; The front side of the second GND welding foot is connected to a fourth horizontal plate portion, and the fourth vertical plate portion is bent upward or downward from one side of the fourth horizontal plate portion; The front side of the first CC welding leg is connected to the fifth horizontal plate portion, and the first CC upper row contact portion is connected to the front side of the fifth horizontal plate portion; The front side of the second CC welding leg is connected to the sixth horizontal plate portion, and the second CC lower row contact portion is connected to the front side of the sixth horizontal plate portion; The first transverse plate portion, the second transverse plate portion, the fifth transverse plate portion, the sixth transverse plate portion, the third transverse plate portion and the fourth transverse plate portion are sequentially arranged at equal intervals.

[0011] As a preferred solution, it also includes: The metal middle spacer is assembled and positioned on the female terminal group so as to be injection-molded together with the female terminal group and fixed in the insulating body.

[0012] As a preferred solution, the front ends of the first vertical plate portion and the fourth vertical plate portion are both provided with positioning grooves, and the metal middle spacer is inserted into the positioning grooves to form contact and positioning with the corresponding first GND terminal and the second GND terminal.

[0013] As a preferred solution, the top of the rear end of the first vertical plate portion and the fourth vertical plate portion is provided with a clamping point to prevent the metal middle spacer from slipping forward, and the metal middle spacer is restricted by the rear end of the corresponding clamping point.

[0014] As a preferred solution, the metal middle partition includes a left partition part and a right partition part, and the left partition part and the right partition part both include a horizontal substrate part, a rear end folded plate part and a top wall; the lower end of the rear end folded plate part is integrally connected to the rear end of the horizontal substrate part, and is bent and extended upward, so that the upper end of the rear end folded plate part is at a height higher than the horizontal substrate part; the front end of the top wall is connected to the upper end of the rear end folded plate part; the horizontal substrate part is provided with a card slot extending forward and backward, and the card slot passes through the rear end of the horizontal substrate part and the rear end folded plate part backward until it extends to the top wall; The horizontal substrate portion is inserted into the positioning groove, the inner front end surface of the slot and the inner rear end surface of the positioning groove are mutually limited front and back, and the rear end surface of the card point and the inner rear end surface of the slot are mutually limited front and back.

[0015] As a preferred solution, the outer side of the top wall is integrally connected to an outer side wall extending downward, the lower end of the outer side wall is integrally extended inwardly horizontally to form a bottom wall, and the top wall, the outer side wall and the bottom wall form a C-shaped bending portion; The bottom surface of the top wall is limited to the top surface of the corresponding first vertical plate portion or the second vertical plate portion, and the top surface of the bottom wall is limited to the bottom surface of the corresponding first horizontal plate portion or the second horizontal plate portion.

[0016] An electronic product includes an electronic product body, on which is provided a low-cost, high-reliability, high-current TYPE-C fast-charging female connector as described in any of the above items.

[0017] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that it mainly utilizes the top and bottom of the vertical plate portion of the same PIN terminal as the upper contact portion and the lower contact portion of the corresponding terminal. In this way, the 4PIN terminal provides TYPE-C standard 8PIN current transmission terminal contacts, which is compatible with the fast charging protocol launched by the USB Association. The structure is simple and ingenious, which is convenient for the integrated design of the terminal group and easy to manufacture. It replaces the traditional upper and lower row terminal design, reduces the number of welding feet, and simplifies the process. The positioning accuracy of the female terminal group in the insulating body is better, which is beneficial to the improvement of process efficiency and yield, and effectively reduces costs. Since the traditional 8PIN terminal is changed to a 4PIN terminal, the design size of each PIN terminal is more sufficient, which is convenient for designing larger terminals as needed, and the cross-sectional area of ​​the contact part is effectively increased to meet the requirements of greater current transmission, which is beneficial to further improve the fast charging effect.

[0018] Moreover, the structural strength of the terminal group is better, and the overall structural strength, durability and reliability of the tongue and the TYPE-C fast charging female connector are enhanced. The TYPE-C fast charging female connector is not easily damaged when the electronic product is being charged, plugged in, used, or collided with, thereby avoiding affecting the user's experience of using the electronic product due to damage to the TYPE-C fast charging female connector, and also avoiding the problem of increasing the failure rate, return rate and even scrapping of the entire electronic product due to failure of the TYPE-C fast charging female connector. Therefore, using the TYPE-C fast charging female connector of the present invention on electronic products is beneficial to improving the user's experience of using electronic products and reducing the after-sales service cost of electronic products.

[0019] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of a low-cost, high-reliability, high-current TYPE-C fast-charging female connector according to an embodiment of the present invention; Figure 2 This is another three-dimensional diagram of the low-cost, high-reliability, high-current TYPE-C fast-charging female connector of an embodiment of the present invention; Figure 3 This is an exploded diagram of a low-cost, high-reliability, high-current TYPE-C fast-charging female connector according to an embodiment of the present invention; Figure 4 This is a cross-sectional view of a low-cost, high-reliability, high-current TYPE-C fast-charging female connector according to an embodiment of the present invention ( Figure 2 (AA in the middle); Figure 5 is a three-dimensional diagram of a female terminal assembly according to an embodiment of the present invention; Figure 6 is a top view of a female terminal assembly according to an embodiment of the present invention; Figure 7 is an exploded view of a female terminal assembly according to an embodiment of the present invention; Figure 8 This is another exploded view of the low-cost, high-reliability, high-current TYPE-C fast-charging female connector of an embodiment of the present invention; Fig. 9 is a three-dimensional diagram of a metal spacer according to an embodiment of the present invention; Fig.10 is an assembly diagram of a metal spacer and a female terminal assembly according to an embodiment of the present invention; Fig.11 is another assembly diagram of the metal spacer and the female terminal assembly according to an embodiment of the present invention; Fig.12 yes Fig.10 Middle K-direction view; Fig.13 yes Fig.10 Middle M-direction view; Fig.14 yes Fig.10 The cross-section diagram at BB in the middle; Fig.15 This is a front view of a low-cost, high-reliability, high-current TYPE-C fast-charging female connector according to an embodiment of the present invention.

[0021] Fig.16 It is a partial cross-sectional view of the first GND upper row contact part and the second GND upper row contact part when they are designed as upper and lower rows of spacing (mainly showing the terminal thickness); Fig.17 It is a partial cross-sectional view (mainly showing the terminal thickness) of the first GND upper row contact portion and the second GND upper row contact portion formed at the top and bottom of the first vertical plate portion respectively.

[0022] Description of the accompanying drawings: female terminal group 100, first GND terminal 10, first GND welding foot 11, first GND upper row contact portion 12, first GND lower row contact portion 13, first horizontal plate portion 101, first vertical plate portion 102, first VBUS terminal 20, first VBUS welding foot 21, first VBUS upper row contact portion 22, first VBUS lower row contact portion 23, second VBUS terminal 30, second VBUS welding foot 31, second VBUS upper row contact portion 32, second VBUS lower row contact portion 33, second GND terminal 40, second GND welding foot 41, second GND upper row contact portion 42, second GND lower row contact portion 43, first CC terminal 50, first CC welding foot 51, first CC upper Row contact portion 52, second CC terminal 60, second CC welding foot 61, second CC lower row contact portion 62, positioning groove C1, card point C2, second horizontal plate portion 201, second vertical plate portion 202, third horizontal plate portion 301, third vertical plate portion 302, fourth horizontal plate portion 401, fourth vertical plate portion 402, insulating body 200, shell 300, tongue 2001, annular plug interface 2002, metal middle partition 400, left partition portion 410, right partition portion 420, front connecting arm 430, horizontal substrate portion 4001, rear end folding plate portion 4002, C-shaped bending portion 4003, top wall 4031, outer wall 4032, bottom wall 4033, card groove C3, guide portion 4034, fifth horizontal plate portion 501, sixth horizontal plate portion 601. DETAILED DESCRIPTION

[0023] Please refer to Figures 1 to 17 As shown, it shows the specific structure of an embodiment of the present invention.

[0024] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0025] A low-cost, high-reliability, high-current TYPE-C fast-charging female connector includes an insulating body 200, a female terminal group 100 arranged on the insulating body 200, and a shell 300 wrapped around the outer periphery of the insulating body 200 (the shell 300 is usually made of metal and has a covering and shielding effect). The insulating body 200 has a tongue 2001, and the female terminal group 100 is exposed on the upper and lower sides of the tongue 2001. An annular plug interface 2002 is formed between the inner wall surface of the shell 300 and the outer peripheral surface of the tongue 2001.

[0026] The female terminal group 100 includes a first GND terminal 10, a first VBUS terminal 20, a second VBUS terminal 30, and a second GND terminal 40 arranged in parallel and at intervals in sequence; the first GND terminal 10 includes a first GND welding foot 11 and a first vertical plate portion 102 integrally connected to the front side of the first GND welding foot 11, and the top and bottom of the first vertical plate portion 102 serve as the first GND upper row contact portion 12 and the first GND lower row contact portion 13 respectively; the first VBUS terminal 20 includes a first VBUS welding foot 21 and a second vertical plate portion 202 integrally connected to the front side of the first VBUS welding foot 21, and the top and bottom of the second vertical plate portion 202 are respectively used as the first GND upper row contact portion 12 and the first GND lower row contact portion 13. They respectively serve as the first VBUS upper row contact portion 22 and the first VBUS lower row contact portion 23; the second VBUS terminal 30 includes a second VBUS welding foot 31 and a third vertical plate portion 302 integrally connected to the front side of the second VBUS welding foot 31, and the top and bottom of the third vertical plate portion 302 respectively serve as the second VBUS upper row contact portion 32 and the second VBUS lower row contact portion 33; the second GND terminal 40 includes a second GND welding foot 41 and a fourth vertical plate portion 402 integrally connected to the front side of the second GND welding foot 41, and the top and bottom of the fourth vertical plate portion 402 respectively serve as the second GND upper row contact portion 42 and the second GND lower row contact portion 43.

[0027] Specifically: The first GND terminal 10 includes a first GND soldering foot 11 and a first GND upper row contact portion 12 (i.e., A1 contact) and a first GND lower row contact portion 13 (i.e., B12 contact) integrally connected to the front side of the first GND soldering foot 11; the front end of the first GND soldering foot 11 is integrally connected to a first GND fixing portion, and the first GND fixing portion has a first horizontal plate portion 101, and one side (referring to the left or right side) of the first horizontal plate portion 101 is bent upward or downward to form a first vertical plate portion 102, and the first GND upper row contact portion 12 and the first GND lower row contact portion 13 are respectively formed on the top of the first vertical plate portion 102. The first vertical plate portion 102 has a left and right side thereof extending through the left and right sides of the first vertical plate portion 102. The height of the positioning groove C1 is slightly higher than the height of the first horizontal plate portion 101. A card point C2 is provided at the top of the rear end of the first vertical plate portion 102 to prevent the metal middle spacer 400 from slipping forward. The card point C2 is located at a height higher than the top of the first vertical plate portion 102. The height of the positioning groove C1 is approximately located in the middle of the first vertical plate portion 102. The first VBUS terminal 20 includes a first VBUS soldering foot 21 and a first VBUS upper row contact portion 22 (i.e., A4 contact) and a first VBUS lower row contact portion 23 (i.e., B9 contact) integrally connected to the front side of the first VBUS soldering foot 21; the front end of the first VBUS soldering foot 21 is integrally connected to a first VBUS fixing portion, the first VBUS fixing portion has a second horizontal plate portion 201, one side (referring to the left or right side) of the second horizontal plate portion 201 is bent upward or downward to form a second vertical plate portion 202, the first VBUS upper row contact portion 22 and the first VBUS lower row contact portion 23 are respectively formed at the top and bottom of the second vertical plate portion 202; The first CC terminal 50 includes a first CC welding leg 51 and a first CC upper row contact portion 52 (i.e., A5 contact point) integrally connected to the front side of the first CC welding leg 51; a fifth horizontal plate portion 501 is connected between the first CC welding leg 51 and the first CC upper row contact portion 52, and the first CC upper row contact portion 52 is bent upward from the front end of the fifth horizontal plate portion 501 and then horizontally extended, so that the first CC upper row contact portion 52 is located at a height higher than the fifth horizontal plate portion 501; The second CC terminal 60 includes a second CC welding foot 61 and a second CC lower row contact portion 62 (i.e., B5 contact) integrally connected to the front side of the second CC welding foot 61; a sixth horizontal plate portion 601 is connected between the second CC welding foot 61 and the second CC upper row contact portion 62, the second CC upper row contact portion 62 integrally extends forward from the front end of the sixth horizontal plate portion 601, and the second CC upper row contact portion 62 is flush with the sixth horizontal plate portion 601; The second VBUS terminal 30 includes a second VBUS soldering foot 31 and a second VBUS upper row contact portion 32 (i.e., A9 contact) and a second VBUS lower row contact portion 33 (i.e., B4 contact) integrally connected to the front side of the second VBUS soldering foot 31; the front end of the second VBUS soldering foot 31 is integrally connected to a second VBUS fixing portion, the second VBUS fixing portion has a third horizontal plate portion 301, one side (referring to the left or right side) of the third horizontal plate portion 301 is bent upward or downward to form a third vertical plate portion 302, the second VBUS upper row contact portion 32 and the second VBUS lower row contact portion 33 are respectively formed at the top and bottom of the third vertical plate portion 302; The second GND terminal 40 includes a second GND soldering foot 41 and a second GND upper row contact portion 42 (i.e., A12 contact point) and a second GND lower row contact portion 43 (i.e., B1 contact point) integrally connected to the front side of the second GND soldering foot 41. The front end of the second GND soldering foot 41 is integrally connected to a second GND fixing portion, and the second GND fixing portion has a fourth horizontal plate portion 401, and one side (referring to the left or right side) of the fourth horizontal plate portion 401 is bent upward or downward to form a fourth vertical plate portion 402, and the second GND upper row contact portion 42 and the second GND lower row contact portion 43 are respectively formed at the top and bottom of the fourth vertical plate portion 402. Furthermore, a positioning groove C1 is provided at the front end of the second GND terminal 40, specifically, a positioning groove C1 is provided at the front end of the fourth vertical plate portion 402, the positioning groove C1 has a front end opening and passes through the left and right sides of the fourth vertical plate portion 402, the height of the positioning groove C1 is slightly higher than the height of the fourth horizontal plate portion 401, and a card point C2 is provided at the top of the rear end of the fourth vertical plate portion 402 to prevent the metal partition 400 from slipping forward; the height of the card point C2 is higher than the top of the fourth vertical plate portion 402, and the height of the positioning groove C1 is approximately located in the middle position of the fourth vertical plate portion 402.

[0028] The first GND soldering foot 11, the first VBUS soldering foot 21, the second VBUS soldering foot 31 and the second GND soldering foot 41 are arranged at the same level, that is, they are located at the same horizontal height, so as to be soldered and fixed one by one with the multiple pads arranged side by side on the PCB board. Moreover, the first GND upper row contact portion 12, the first VBUS upper row contact portion 22, the first CC upper row contact portion 52, the second VBUS upper row contact portion 32 and the second GND upper row contact portion 42 are arranged side by side and at the same level in sequence, and the first GND lower row contact portion 13, the first VBUS lower row contact portion 23, the second CC lower row contact portion 62, the second VBUS lower row contact portion 33 and the second GND lower row contact portion 43 are arranged side by side and at the same level in sequence; the first GND soldering foot 11, the first VBUS soldering foot 21, the first CC soldering foot 51, the second CC soldering foot 61, the second VBUS soldering foot 31 and the second GND soldering foot 41 are arranged at the same level in sequence. The first transverse plate portion 101 , the second transverse plate portion 201 , the third transverse plate portion 301 , the fourth transverse plate portion 401 , the fifth transverse plate portion 501 , and the sixth transverse plate portion 601 are arranged at equal intervals.

[0029] In this embodiment, the first GND terminal 10, the first VBUS terminal 20, the first CC terminal 50, the second CC terminal 60, the second VBUS terminal 30, and the second GND terminal 40 are an integrated terminal group, that is, the six terminals are connected together on the same material strip, and the six welding legs of the six terminals are connected side by side on the same side of the material strip. The structure is simple, and this integrated terminal material strip is suitable for continuous stamping production. Compared with the two-row terminal group, the integrated terminal material strip design of this embodiment makes the terminal position accuracy better controllable.

[0030] For a standard 24PINTYPE-C female connector, the PIN definitions are (from left to right A1 to A12) GND, TX1+, TX1-, VBUS, CC1, D+, D-, SBU1, VBUS, RX2-, RX2+, GND; (from right to left B1 to B12) GND, TX2+, TX2-, VBUS, CC2, D+, D-, SBU2, VBUS, RX1-, RX1+, GND. The present invention is a simplified design based on the standard 24PINTYPE-C female connector. The A1\A4\A5\A9\A12\B1\B4\B5\B9\B12 mentioned in the present invention are the same as the A1\A4\A5\A9\A12\B1\ B4\ B5\ B9\ B12 of the standard 24PINTYPE-C female connector.

[0031] In this embodiment, the first vertical plate portion 102 is formed by bending upward from the left side of the first horizontal plate portion 101, the second vertical plate portion 202 is formed by bending upward from the left side of the second horizontal plate portion 201, the third vertical plate portion 302 is formed by bending upward from the right side of the third horizontal plate portion 301, and the fourth vertical plate portion 402 is formed by bending upward from the right side of the fourth horizontal plate portion 401, so that the first horizontal plate portion 101, the second horizontal plate portion 201, the third horizontal plate portion 301, and the fourth horizontal plate portion 401 can be designed with a larger width size, which not only meets the demand for transmitting a larger current, but also helps to more firmly position the terminal group in the insulating body.

[0032] contrast Fig.16 and Fig.17 As shown, if the first GND upper row contact portion 12 and the second GND upper row contact portion 42 are designed as upper and lower rows of spacing, the area of ​​the local cross-section of the terminal is significantly smaller than the area of ​​the local cross-section of the terminal when the first GND upper row contact portion 12 and the second GND upper row contact portion 42 are respectively formed at the top and bottom of the first vertical plate portion 102. In other words, by adopting the vertical plate portion structure, that is, by using the first vertical plate portion 102, the second vertical plate portion 202, the third vertical plate portion 302, and the fourth vertical plate portion 402, the function of one terminal carrying two contacts is realized. For the PIN terminal, the cross-sectional area of ​​the contact portion, the cross-sectional area of ​​the fixing portion, and the cross-sectional area of ​​the welding foot and other parts can all be designed with a large area to meet the needs of large current transmission.

[0033] Since the first vertical plate portion 102, the second vertical plate portion 202, the third vertical plate portion 302, and the fourth vertical plate portion 402 are all formed by stamping on a metal plate and then bending it, it is very easy to stamp out the positioning groove C1 and the card point C2, and to design the shape and size of the top and bottom of the first vertical plate portion 102, the second vertical plate portion 202, the third vertical plate portion 302, and the fourth vertical plate portion 402. Moreover, the first vertical plate portion 102, the second vertical plate portion 202, the third vertical plate portion 302, and the fourth vertical plate portion 402 after bending make the overall structural strength of the female terminal group 100 better, and further make the connector more resistant to plugging and unplugging, and avoid the tongue breakage phenomenon.

[0034] During production, the female terminal group 100 can be integrally injection molded and fixed in the insulating body 200. The left and right sides of the tongue 2001 of the insulating body 200 are designed with hook adaptation protrusions at the front end to match the hook of the male head. The hook adaptation protrusion can be formed integrally by only the plastic part of the tongue 2001 itself, or a metal part can be embedded, and a hook adaptation protrusion protrusion imitation part is designed on the metal part. In this way, the hook adaptation protrusion imitation part is exposed on the left and right sides of the tongue 2001 as the hook adaptation protrusion, or the hook adaptation protrusion imitation part can be correspondingly embedded in the plastic hook adaptation protrusions on the left and right sides of the tongue 2001 to form the hook adaptation protrusion together.

[0035] In this embodiment, the TYPE-C fast charging female connector also includes a metal middle spacer 400, which is injection molded together with the female connector terminal group 100 and fixed in the insulating body 200. Specifically, a positioning groove C1 is provided at the front end of the first GND terminal 10 and the second GND terminal 40, and the metal middle spacer 400 is inserted into the positioning groove C1 to form contact and positioning with the corresponding first GND terminal 10 and the second GND terminal 40; the metal middle spacer 400 includes a left partition part 410 and a right partition part 420 with a left-right symmetrical design (the first GND terminal 10 and the second GND terminal 40 are also symmetrical structures to each other), and the left partition part 410 and the right partition part 420 are inserted into the corresponding positioning groove C1; and, the first GND terminal 10 and the second GND terminal 40 are provided with a card point C2 to prevent the metal middle spacer 400 from slipping forward, and the left partition part 410 and the right partition part 420 are Limited to the rear end of the corresponding card point C2; wherein, the left partition part 410 and the right partition part 420 are connected into one by a front connecting arm 430, which is convenient for the production of the metal middle partition 400, and the metal middle partition 400 can also be inserted into the female terminal group 100 at one time; the first vertical plate part 102 and the fourth vertical plate part 402 are connected via the left partition part 410, the right partition part 420 and the front connecting arm 430 to form an integrated U-shaped frame structure, further strengthening the structural strength around the tongue 2001; the front connecting arm 430 is located in front of the first VBUS terminal 20 and the second VBUS terminal 30 and maintains a spacing; of course, in other embodiments, the left partition part 410 and the right partition part 420 can also be set separately from each other.The left partition part 410 and the right partition part 420 both include a horizontal substrate part 4001, a rear end folding plate part 4002 and a C-shaped bending part 4003; the horizontal substrate part 4001 is provided with a card slot C3 extending forward and backward, the lower end of the rear end folding plate part 4002 is integrally connected to the rear end of the horizontal substrate part 4001, and is bent and extended upward, so that the upper end of the rear end folding plate part 4002 is located at a height higher than the horizontal substrate part 4001; the C-shaped bending part 4003 includes an integrally connected top wall 4031, an outer side wall 4032 and a bottom wall 4033, the upper and lower ends of the outer side wall 4032 are respectively connected to the outer ends of the top wall 4031 and the bottom wall 4033, so as to form a C-shaped structure, the left partition part 410 and the right partition part 4 The C-shaped bending portions 4003 of 20 are all designed to be opened inwards. Considering the smoothness of assembly, a guide portion 4034 extending obliquely downward and backward can be connected to the rear end of the bottom wall 4033; the structural design of the left partition portion 410 and the right partition portion 420 effectively strengthens the structural strength of the tongue 2001; the front end of the top wall 4031 is connected to the upper end of the rear end folding plate portion 4002, and the card slot C3 penetrates the rear end of the horizontal substrate portion 4001 and the rear end folding plate portion 4002 backward until it extends to the top wall 4031 (for example: about 1 / 3 to 1 / 2), so that the internal rear end surface formed by the card slot C3 on the top wall 4031 can be used to form a mutual limitation with the rear end surface of the card point C2 to prevent the metal middle partition 4000 from slipping forward.

[0036] The assembly process of the TYPE-C fast charging female connector is as follows: First, prepare the female terminal group 100 and the metal middle spacer 400; the female terminal group 100 is linearly conveyed in the form of a material belt on the continuous stamping production material belt, and the metal middle spacer 400 is loaded into the female terminal group 100 from front to back at the insertion station. During the relative front-to-back displacement of the female terminal group 100 and the metal middle spacer 400, the first vertical plate portion 102 and the fourth vertical plate portion 402 pass through the corresponding C-shaped bending portion 4003 and the card slot C3 until the positioning groove C1 is stuck in the internal front end surface of the card slot C3, the card point C2 is buckled into the card slot C3 and limited to the internal rear end surface of the card slot C3, and the bottom surface of the top wall 4031 is limited to the corresponding first vertical plate portion 102 or the fourth vertical plate portion 40 2, the top surface of the bottom wall 4033 is limited to the bottom surface of the corresponding first horizontal plate portion 101 or the fourth horizontal plate portion 401; the positioning groove C1 is located at the middle height between the top surface and the bottom surface of the corresponding first vertical plate portion 102 and the fourth vertical plate portion 402; after the metal middle spacer 400 is loaded from front to back, the horizontal substrate portion 4001 forms a reference positioning for the middle height position of the first vertical plate portion 102 and the fourth vertical plate portion 402; at this point, the metal middle spacer 400 and the female terminal group 100 are reliably assembled and positioned in the left and right directions, the front and back directions, and the up and down directions, and the metal middle spacer 400 forms a firm combination with the first GND terminal 10 and the second GND terminal 40, such as Figure 10-12 As shown (the material strip is not shown); Then the assembled female terminal group 100 and the metal middle spacer 400 are injection molded together (also referred to as embedded injection molding), so that the female terminal group 100 and the metal middle spacer 400 are buried in the insulating body 200; when performing embedded injection molding, the outer edge of the horizontal substrate part 4001 is used as an auxiliary positioning reference for injection molding to ensure that the upper and lower glue thicknesses of the tongue 2001 are consistent, and the protruding heights of each vertical plate part on the top and bottom surfaces of the tongue 2001 are consistent, which is conducive to better control of product quality and better contact reliability when the TYPE-C 10PIN fast charging female plug is plugged in. Usually, the metal middle spacer 400 enters the injection mold along with the material strip where the female terminal group 100 is located; Then remove the terminal strip to obtain a single TYPE-C fast charging female connector body (the TYPE-C fast charging female connector body includes an insulating body 200 and a female connector terminal group 100 and a metal middle spacer 400 disposed on the insulating body 200); Then, a single TYPE-C fast charging female plug body is installed into the prepared shell 300, for example, the TYPE-C fast charging female plug body is installed into the shell 300 from the back to the front, and the preset spring pieces on the shell 300 are inserted into the corresponding recesses on the insulating body 200 to realize the mutual assembly and positioning of the TYPE-C fast charging female plug body and the shell 300. Six welding pins are exposed at the bottom of the shell 300 near the rear end.

[0037] And, an electronic product is provided, including an electronic product body, on which a TYPE-C fast charging female head as described in any of the above items is arranged. The electronic product can be a power socket, a charging adapter, a power bank (also referred to as a mobile storage device, a mobile charger), an earphone charging box, a wireless earphone, a charging device on a car, a desk lamp, a fan, a mobile phone holder, an electric shaver, an electric toy, etc., and can also be used on other electronic products that need to be equipped with a charging interface. It realizes the fast charging function of large current transmission at a relatively low cost (usually without data transmission function). This type of TYPE-C fast charging female head has a simple and reliable structure and a long service life. It is not easy to cause the TYPE-C fast charging female head to be damaged when the electronic product is charged, plugged, used, collided, etc., so as to avoid affecting the user's experience of using the electronic product due to damage to the TYPE-C fast charging female head, and also avoid the problem of increasing the failure rate, return rate, or even the scrapping of the entire electronic product due to the failure of the TYPE-C fast charging female head. Therefore, the use of the TYPE-C fast charging female head of the present invention on the electronic product is conducive to improving the user's experience of using the electronic product and reducing the after-sales service cost of the electronic product.

[0038] The design focus of the present invention is that it mainly uses the top and bottom of the vertical plate of the same PIN terminal as the upper row contact part and the lower row contact part of the corresponding terminal, so that the 4PIN terminal provides the TYPE-C standard 8PIN current transmission terminal contact, which is compatible with the fast charging protocol launched by the USB Association. The structure is simple and ingenious, which is convenient for the integrated design of the terminal group, easy to make, and replaces the traditional upper and lower row terminal design, reducing the number of welding pins, and the process is also simplified. The positioning accuracy of the female terminal group in the insulating body is better, which is conducive to the improvement of process efficiency and yield, and effectively reduces costs. Since the traditional 8PIN terminal is changed to a 4PIN terminal, the design size of each PIN terminal is more sufficient, which is convenient for designing a larger terminal size as needed, and the cross-sectional area of ​​the contact part is effectively increased to meet the requirements of greater current transmission, which is conducive to further improving the fast charging effect. Moreover, the structural strength of the terminal group is better, and the overall structural strength, durability and reliability of the tongue and the TYPE-C fast charging female head are also strengthened, and it is not easy to cause the TYPE-C fast charging female head to be damaged due to electronic products being charged, plugged and used, and collided.

[0039] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A low-cost, high-reliability, high-current TYPE-C fast-charging female connector, comprising an insulating body, a female terminal group arranged on the insulating body, and a shell wrapped around the outer periphery of the insulating body, the insulating body having a tongue, the female terminal group exposed on the upper and lower sides of the tongue, and an annular plug interface formed between the inner wall surface of the shell and the outer peripheral surface of the tongue, characterized in that: The female terminal group includes: A first GND terminal, comprising a first GND welding foot and a first vertical plate portion integrally connected to the front side of the first GND welding foot, wherein the top and the bottom of the first vertical plate portion serve as a first GND upper row contact portion and a first GND lower row contact portion, respectively; A first VBUS terminal, comprising a first VBUS soldering foot and a second vertical plate portion integrally connected to the front side of the first VBUS soldering foot, wherein the top and the bottom of the second vertical plate portion serve as a first VBUS upper row contact portion and a first VBUS lower row contact portion, respectively; A second VBUS terminal, comprising a second VBUS soldering foot and a third vertical plate portion integrally connected to the front side of the second VBUS soldering foot, wherein the top and the bottom of the third vertical plate portion serve as a second VBUS upper row contact portion and a second VBUS lower row contact portion, respectively; The second GND terminal includes a second GND welding foot and a fourth vertical plate portion integrally connected to the front side of the second GND welding foot, and the top and bottom of the fourth vertical plate portion serve as the second GND upper row contact portion and the second GND lower row contact portion respectively.

2. The low-cost, high-reliability, high-current TYPE-C fast-charging female connector according to claim 1 is characterized in that: The female terminal group further includes: A first CC terminal including a first CC welding leg and a first CC upper row contact portion integrally connected to a front side of the first CC welding leg; A second CC terminal including a second CC welding foot and a second CC lower row contact portion integrally connected to a front side of the second CC welding foot; Moreover, the first GND upper row contact portions, the first VBUS upper row contact portions, the first CC upper row contact portions, the second VBUS upper row contact portions and the second GND upper row contact portions are sequentially arranged side by side with an even spacing, and the first GND lower row contact portions, the first VBUS lower row contact portions, the second CC lower row contact portions, the second VBUS lower row contact portions and the second GND lower row contact portions are sequentially arranged side by side with an even spacing.

3. The low-cost, high-reliability, high-current TYPE-C fast-charging female connector according to claim 2 is characterized in that: The first GND welding pin, the first VBUS welding pin, the first CC welding pin, the second CC welding pin, the second VBUS welding pin and the second GND welding pin are arranged at an even distance.

4. The low-cost, high-reliability, high-current TYPE-C fast-charging female connector according to claim 2 or 3 is characterized in that: The front side of the first GND welding leg is connected to a first horizontal plate portion, and the first vertical plate portion is formed by bending upward or downward from one side of the first horizontal plate portion; The front side of the first VBUS welding leg is connected to a second horizontal plate portion, and the second vertical plate portion is formed by bending upward or downward from one side of the second horizontal plate portion; The front side of the second VBUS welding leg is connected to a third horizontal plate portion, and the third vertical plate portion is bent upward or downward from one side of the third horizontal plate portion; The front side of the second GND welding foot is connected to a fourth horizontal plate portion, and the fourth vertical plate portion is bent upward or downward from one side of the fourth horizontal plate portion; The front side of the first CC welding leg is connected to the fifth horizontal plate portion, and the first CC upper row contact portion is connected to the front side of the fifth horizontal plate portion; The front side of the second CC welding leg is connected to the sixth horizontal plate portion, and the second CC lower row contact portion is connected to the front side of the sixth horizontal plate portion; The first transverse plate portion, the second transverse plate portion, the fifth transverse plate portion, the sixth transverse plate portion, the third transverse plate portion and the fourth transverse plate portion are sequentially arranged at equal intervals.

5. The low-cost, high-reliability, high-current TYPE-C fast-charging female connector according to claim 2 is characterized in that: Also included are: The metal middle spacer is assembled and positioned on the female terminal group so as to be injection-molded together with the female terminal group and fixed in the insulating body.

6. The low-cost, high-reliability, high-current TYPE-C fast-charging female connector according to claim 5 is characterized in that: The front ends of the first vertical plate portion and the fourth vertical plate portion are both provided with positioning grooves, and the metal middle spacer is inserted into the positioning grooves to form contact and positioning with the corresponding first GND terminal and the second GND terminal.

7. The low-cost, high-reliability, high-current TYPE-C fast-charging female connector according to claim 6 is characterized in that: The top of the rear end of the first vertical plate portion and the fourth vertical plate portion is provided with a clamping point to prevent the metal middle spacer from slipping forward, and the metal middle spacer is restricted by the rear end of the corresponding clamping point.

8. The low-cost, high-reliability, high-current TYPE-C fast-charging female connector according to claim 7 is characterized in that: The metal middle partition comprises a left partition part and a right partition part, and the left partition part and the right partition part both comprise a horizontal substrate part, a rear end folded plate part and a top wall; the lower end of the rear end folded plate part is integrally connected to the rear end of the horizontal substrate part, and is bent and extended upward, so that the upper end of the rear end folded plate part is located at a height higher than the horizontal substrate part; the front end of the top wall is connected to the upper end of the rear end folded plate part; a card slot extending forward and backward is provided on the horizontal substrate part, and the card slot passes through the rear end of the horizontal substrate part and the rear end folded plate part backward until it extends to the top wall; The horizontal substrate portion is inserted into the positioning groove, the inner front end surface of the slot and the inner rear end surface of the positioning groove are mutually limited front and back, and the rear end surface of the card point and the inner rear end surface of the slot are mutually limited front and back.

9. The low-cost, high-reliability, high-current TYPE-C fast-charging female connector according to claim 8 is characterized in that: The outer side of the top wall is integrally connected to an outer side wall extending downward, the lower end of the outer side wall is integrally extended inwardly horizontally to form a bottom wall, and the top wall, the outer side wall and the bottom wall form a C-shaped bending portion; The bottom surface of the top wall is limited to the top surface of the corresponding first vertical plate portion or the second vertical plate portion, and the top surface of the bottom wall is limited to the bottom surface of the corresponding first horizontal plate portion or the second horizontal plate portion.

10. An electronic product, comprising an electronic product body, characterized in that: The electronic product body is provided with a low-cost, high-reliability, high-current TYPE-C fast-charging female connector as described in any one of claims 1 to 9.

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