A busbar connector capable of preventing short circuit of upper and lower PCBs

Abstract

The utility model discloses a kind of row female connectors of preventing PCB board short circuit, including row female rubber core and row female terminal, and row female terminal is equipped with upper pair of sockets, and upper pair of sockets includes N contact surfaces;The needle tail end of row female terminal is equipped with needle tail one and needle tail two, and needle tail one is provided with needle tail outer fold that is bent outward;Row female rubber core bottom is provided with the positioning groove one and the positioning groove two corresponding with needle tail one, needle tail two;When row female terminal is assembled in row female rubber core, needle tail outer fold makes needle tail one and adjacent lower row needle welding needle tail form increased interval distance;Outer fold structure increases the interval distance of row female terminal needle tail and lower row needle welding needle tail, prevent electrical short circuit hidden danger when multilayer PCB board is connected;Single row female connector realizes the upper and lower simultaneous pair of insertion connection of three PCB boards, reduces the quantity of connector use and reduces selection type cost;Symmetrical design and thinning elastic contact part of eight contact surfaces, improve contact stability and plug-in life, reach the comprehensive effect of high reliability and high efficiency assembly.

Description

Technical Field

[0001] This utility model relates to the field of female connector technology, specifically to a female connector that prevents short circuits between upper and lower PCB boards. Background Technology

[0002] With the current trend towards high-end design in electronic devices, the interconnection space on multi-layer PCBs needs to be significantly reduced, and traditional female connectors are insufficient to meet the requirements of precise PCB layout processes. When reducing the connection space between PCBs, engineers often need to achieve bidirectional connections between upper and lower layers using a single connector, or require traces to be routed below the connector on the base plate. However, existing female connectors have significant limitations: when the distance between the soldered pin tail at the bottom of the connector and the soldered pin tail of the upper female connector is insufficient, a short circuit can easily occur due to insufficient safety clearance, leading to abnormal equipment operation or even scrapping.

[0003] Furthermore, traditional solutions require multiple connectors to interconnect three PCBs, increasing selection costs and posing a risk of electrical short circuits due to the close proximity of the bottom pin header's solder tail to the female header's tail. As the complexity of end-product functions increases, there is an urgent need for a new female header connector structure that can simultaneously support top-to-bottom mating, increase the safety spacing between soldered pin tails, and reduce the number of connectors required. Utility Model Content

[0004] In view of the above-mentioned technical problems in related technologies, this utility model proposes a female connector that prevents short circuits between upper and lower PCB boards, which can overcome the above-mentioned shortcomings of the prior art.

[0005] To achieve the above-mentioned technical objectives, the technical solution of this utility model is implemented as follows:

[0006] A female connector for preventing short circuits between upper and lower PCB boards;

[0007] The female connector for preventing short circuits on upper and lower PCB boards includes a female connector core and female connector terminals assembled therein. Its features include: the female connector terminals having upper mating ports containing N contact surfaces; the pin tails of the female connector terminals having a pin tail one and a pin tail two, with the pin tail one having an outwardly bent fold; the bottom of the female connector core having a pin tail positioning groove one and a pin tail positioning groove two corresponding to the pin tail one and pin tail two; when the female connector terminals are assembled on the female connector core, the outward bending of the pin tails increases the spacing between the pin tail one and the adjacent lower row of pins.

[0008] Furthermore, the socket on the female terminal includes eight contact surfaces, which are symmetrically distributed: female terminal contact surface one is symmetrical to female terminal contact surface five, female terminal contact surface two is symmetrical to female terminal contact surface three, female terminal contact surface four is symmetrical to female terminal contact surface six, and female terminal contact surface seven is symmetrical to female terminal contact surface eight; female terminal contact surface four and female terminal contact surface six are both thinned to form elastic contact parts.

[0009] Furthermore, the female connector terminal has an inner chamfer at the insertion port entrance and an outer chamfer at the head of the female connector terminal; the female connector core has a chamfer at the insertion port entrance.

[0010] Furthermore, the side wall of the female connector terminal is provided with a female connector terminal buckle, and the inner wall of the female connector core is provided with a female connector core locking hole that locks with the female connector terminal buckle; both the first and second female connector pin tails are provided with female connector pin tail reinforcing ribs.

[0011] Furthermore, the first and second pin tails of the female connector terminal are respectively welded and fixed through the welding holes of the female connector pin tail PCB board; the lower pin welding pin tails are welded and fixed through the welding holes of the lower pin PCB board.

[0012] Furthermore, the female connector can be mated to both the upper row of mating pins and the lower row of mating pins simultaneously; the length of the upper row of mating pins is shorter than the length of the lower row of mating pins, and the lower row of mating pins are not soldered to the PCB board.

[0013] Furthermore, the pin tail 1 and pin tail 2 of the female connector terminal are respectively embedded in the pin tail positioning groove 1 and pin tail positioning groove 2 of the female connector core terminal; the pin tail positioning groove 1 and pin tail positioning groove 2 of the female connector core terminal form left and right limits for the pin tail 1 and pin tail 2 of the female connector core terminal.

[0014] Furthermore, the contact surfaces four and six of the female terminal block are thinned to form elastic contact portions; the contact surfaces one and eight of the female terminal block are connected through the contact surface four of the female terminal block, and the contact surfaces five and seven of the female terminal block are connected through the contact surface six of the female terminal block.

[0015] Furthermore, after the lower row of pins is welded through the welding hole of the lower row of pins PCB board, a gap is formed between it and the pin tail of the female connector terminal; the pin tail of the female connector terminal is folded outward to increase the gap to prevent short circuit.

[0016] Furthermore, when simultaneously mating with the upper row of pins and the lower row of pins, the length of the upper row of pins is less than the length of the lower row of pins; the lower row of pins is inserted through the bottom of the female terminal block and is not soldered to the PCB board.

[0017] The beneficial effects of this utility model are as follows: by increasing the spacing between the pin tail of the female connector and the welding pin tail of the lower row of pins through the outward folding structure of the female connector tail, the potential electrical short circuit hazard during multi-layer PCB board connection is effectively prevented; by using a single row of female connectors, three PCB boards can be simultaneously connected to each other from top to bottom, thereby reducing the number of connectors used and lowering the selection cost; by using a symmetrical design of eight contact surfaces and thinning the elastic contact part, the contact stability and insertion / removal life are improved, thus achieving a comprehensive technical effect of high reliability and efficient assembly. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a first-view perspective perspective view of a female connector for preventing short circuits between upper and lower PCB boards according to an embodiment of the present utility model;

[0020] Figure 2 This is a first-view exploded view of a female connector for preventing short circuits between upper and lower PCB boards according to an embodiment of the present invention;

[0021] Figure 3 This is a second-view exploded view of a female connector for preventing short circuits between upper and lower PCB boards according to an embodiment of this utility model;

[0022] Figure 4 This is a cross-sectional view of a female connector for preventing short circuits between upper and lower PCB boards according to an embodiment of the present utility model;

[0023] Figure 5 This is a second-view perspective perspective view of a female connector for preventing short circuits between upper and lower PCB boards according to an embodiment of the present utility model;

[0024] In the diagram: 1. Female header core; 2. Female header terminal; 3. Upper row mating pins; 4. Female header connector; 5. PCB board; 6. Lower row mating pins; 7. Upper row mating pins; 8. Upper mating port on the female header core; 9. Female header core locking hole; 10. Female header core terminal pin tail positioning groove one; 11. Female header core terminal pin tail positioning groove two; 12. Female header terminal snap-fit; 13. Female header terminal pin tail one; 14. Female header terminal pin tail two; 15. Female header terminal pin tail reinforcing rib; 16. Lower row pin PCB board soldering hole; 17. Female header pin tail PCB board soldering hole; 18. 19. Chamfer inside the female terminal; 20. Chamfer outside the female terminal; 21. Upper insertion port of the female terminal; 22. Contact surface one of the female terminal; 23. Contact surface two of the female terminal; 24. Contact surface three of the female terminal; 25. Contact surface five of the female terminal; 26. Contact surface seven of the female terminal; 27. Welding the tail of the lower row of pins; 28. Outward fold of the tail of the female terminal pin; 29. ​​Bottom insertion port of the female terminal; 30. Chamfer of the female terminal core insertion hole; 31. Female terminal core insertion hole; A. Spacing distance; B. Length of the upper row of insertion pins; C. Length of the lower row of insertion pins. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art are within the protection scope of the present utility model.

[0026] It should be understood that in the description of the embodiments of this utility model, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of the embodiments of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0027] like Figure 1-5As shown in the embodiment of this utility model, a female connector for preventing short circuits between upper and lower PCB boards includes a female connector core 1 and female connector terminals 2 assembled therein. The female connector terminals 2 are characterized by: a female connector terminal upper insertion port 20, the female connector terminal upper insertion port 20 comprising N contact surfaces; the pin tail end of the female connector terminal 2 is provided with a female connector terminal pin tail one 13 and a female connector terminal pin tail two 14, the female connector terminal pin tail one 13 having an outwardly bent female connector terminal pin tail fold 28; the bottom of the female connector core 1 has a female connector core pin tail positioning groove one 10 and a female connector core pin tail positioning groove two 11 corresponding to the female connector terminal pin tail one 13 and the female connector terminal pin tail two 14; when the female connector terminal 2 is assembled on the female connector core 1, the female connector terminal pin tail fold 28 causes the female connector terminal pin tail one 13 to form an increased interval distance A with the adjacent lower row pin welding pin tail 27.

[0028] According to an embodiment of the present invention, a female connector for preventing short circuits on upper and lower PCB boards is provided. In a specific embodiment, the female connector terminal has eight contact surfaces 20, which are symmetrically distributed: female connector terminal contact surface 1 21 is symmetrical with female connector terminal contact surface 5 25, female connector terminal contact surface 22 is symmetrical with female connector terminal contact surface 3 23, female connector terminal contact surface 4 24 is symmetrical with female connector terminal contact surface 6, and female connector terminal contact surface 7 26 is symmetrical with female connector terminal contact surface 8. Both female connector terminal contact surface 4 24 and female connector terminal contact surface 6 are thinned to form elastic contact portions.

[0029] According to an embodiment of the present invention, a female connector for preventing short circuits between upper and lower PCB boards is provided. In a specific embodiment, the female connector has an inner chamfer 18 at the entrance of the socket 20 and an outer chamfer 19 at the head of the female connector 2. The female connector core 1 has a female connector core socket chamfer 30 at the entrance of the female connector core socket 31.

[0030] According to an embodiment of the present invention, a female connector for preventing short circuits between upper and lower PCB boards is provided. In a specific embodiment, the female connector 2 has a female connector buckle 12 on its side wall, and the female connector core 1 has a female connector core locking hole 9 on its inner wall that locks with the female connector buckle 12. Both the female connector pin tail 13 and the female connector pin tail 2 are provided with female connector pin tail reinforcing ribs 15.

[0031] According to an embodiment of the present invention, a female connector for preventing short circuits between upper and lower PCB boards is provided. In a specific embodiment, the female connector pin tail 13 and female connector pin tail 14 pass through the female connector pin tail PCB board welding hole 17 and are welded and fixed; the lower pin welding pin tail 27 passes through the lower pin PCB board welding hole 16 and is welded and fixed.

[0032] According to an embodiment of the present invention, a female connector for preventing short circuits between upper and lower PCB boards is provided. In a specific embodiment, the female connector can be simultaneously mated with the upper row mating pins 3 and the lower row mating pins 6. The length B of the upper row mating pins 3 is less than the length C of the lower row mating pins 6, and the lower row mating pins 6 are not soldered to the PCB board 5.

[0033] According to an embodiment of the present invention, a female connector for preventing short circuits between upper and lower PCB boards is provided. In a specific embodiment, the female connector pin tail 13 and female connector pin tail 2 of the female connector terminal 2 are respectively embedded in the female connector core 1 female connector core terminal pin tail positioning groove 10 and female connector core terminal pin tail positioning groove 211. The female connector core terminal pin tail positioning groove 10 and female connector core terminal pin tail positioning groove 211 provide left and right limits for the female connector pin tail 13 and female connector pin tail 214.

[0034] According to an embodiment of the present invention, a female connector for preventing short circuits between upper and lower PCB boards is provided. In a specific embodiment, the female connector 2 has a thinning process to form an elastic contact portion on the female connector contact surface 24 and the female connector contact surface 6. The female connector contact surface 21 and the female connector contact surface 8 are connected through the female connector contact surface 24, and the female connector contact surface 25 and the female connector contact surface 26 are connected through the female connector contact surface 6.

[0035] According to an embodiment of the present invention, a female connector for preventing short circuits between upper and lower PCB boards is provided. In a specific embodiment, after the lower pin welding pin tail 27 passes through the lower pin PCB board welding hole 16 for welding, a gap distance A is formed between it and the female connector terminal pin tail 13. The female connector terminal pin tail is folded outward 28 to increase the gap distance A to prevent short circuits.

[0036] According to an embodiment of the present invention, a female connector for preventing short circuits between upper and lower PCB boards is provided. In a specific embodiment, when the upper row of mating pins 3 and the lower row of mating pins 6 are simultaneously mated, the length B of the upper row of mating pins 3 is less than the length C of the lower row of mating pins 6. The lower row of mating pins 6 are inserted through the bottom mating port 29 of the female connector and are not soldered to the PCB board 5.

[0037] To facilitate understanding of the above-mentioned technical solutions of this utility model, the following detailed description of the above-mentioned technical solutions of this utility model is provided through specific usage methods.

[0038] In practical use, the female connector for preventing short circuits on upper and lower PCB boards according to this utility model includes a female connector core and female connector terminals. The female connector terminals are composed of eight contact surfaces, including contact surface 1, contact surface 2, contact surface 3, contact surface 4, contact surface 5, contact surface 6, contact surface 7, and contact surface 8. Contact surface 1 and contact surface 5 are symmetrical, contact surface 2 and contact surface 3 are symmetrical, contact surface 4 and contact surface 6 are symmetrical, and contact surface 7 and contact surface 8 are symmetrical. To ensure that the contact spring can output a large insertion and extraction force and improve the insertion and extraction life of the contact spring, contact surface 1 and contact surface 8 and contact surface 5 and contact surface 7 are connected through contact surface 4 and contact surface 6. To ensure good elasticity, contact surface 4 and contact surface 6 are thinned. After the material is thinned, its elasticity will be significantly improved, and with the improvement of elasticity, its insertion and extraction life will also increase. When the product is in operation, the matching upper row of pins is inserted all the way to the bottom along the socket of the female connector. At this time, the upper row of pins will make effective contact with all eight sides of the terminal, which will greatly improve the stability and reliability of the product's contact. In addition, to improve the smoothness of the insertion and removal of the upper row of pins and the female connector, the female connector socket is designed with an inner chamfer. The inner chamfer has a guiding function, which facilitates the mutual insertion and removal of the upper row of pins and the female connector.

[0039] To ensure good assembly stability and insertion / removal strength between the female connector and the female connector core, the female connector is first inserted into the corresponding female connector core socket. For smooth assembly, the female connector head is designed with an outward chamfer, and the female connector core also has a chamfer. This double chamfering provides good guidance during assembly, improving assembly efficiency. When the female connector is fully inserted into the female connector core socket, the female connector clip will engage with the female connector core socket, preventing easy detachment and ensuring the connection strength between the female connector and the female connector core. Simultaneously, the female connector pin tail 1 and female connector pin tail 2 also enter the female connector core pin tail positioning groove 1 and female connector core pin tail positioning groove 2, respectively. The positioning grooves 1 and 2 provide lateral positioning for the pin tails 1 and 2. Furthermore, to enhance the strength of the female connector pin tail, the female connector pin tail also has... The design incorporates reinforcing ribs at the pin tail. The combined effect of these ribs and the positioning grooves on the pin tails of the female connector effectively prevents pin tail misalignment. This allows the pin tail to easily insert into the soldering hole on the PCB board. After the pin tail passes through the soldering hole, it is soldered, completing the connection between the female connector and the PCB board. Following this, the lower row of pins passes through the soldering hole on the PCB board and is then soldered. This completes the connection between the lower row of pins and the PCB. The external folding mechanism on the female connector pin tail increases the distance A between the female connector pin tail and the lower row of pins. This increased A enhances the high-voltage withstand capability, preventing short circuits between the female connector and the lower row of pins. Figure 4 As shown.

[0040] This product also features a top-to-bottom interlocking function, meaning that the top row of interlocking pins and the bottom row of interlocking pins can be interlocked simultaneously. In this case, simply decrease the length B of the top row of interlocking pins; the bottom row of interlocking pins does not require soldering, and its length C is increased. See [link / reference needed]. Figure 4 As shown.

[0041] In use, first insert the female header terminal 2 into the jack 31 of the female header rubber core 1, and achieve rapid assembly through the guiding cooperation between the outer chamfer 19 and the jack chamfer 30; when the terminal buckle (12) is buckled into the rubber core card hole (9), locking is completed. At the same time, the first pin tail 13 and the second pin tail 14 are embedded in the first positioning groove 10 and the second positioning groove 11 to prevent deviation. Subsequently, pass the female header pin tail through the PCB board welding hole 17 for welding and fixation, and then pass the lower row pin welding pin tail 27 through the lower layer PCB welding hole 16 for welding; at this time, the outer fold 28 of the pin tail forms an increased safety distance A between the first pin tail 13 and the lower row pin welding pin tail 27, effectively preventing short circuits. Finally, insert the upper row mating pin 3 into the female header terminal mating socket 20, and its eight contact surfaces are in full contact with the pin. At the same time, insert the lower row mating pin 6 into the bottom mating socket 29, and realize the synchronous and stable connection of the three PCB boards through the length difference B<C.

[0042] In summary, by means of the above technical solutions of the present invention, the interval distance between the female header terminal pin tail and the lower row pin welding pin tail is increased through the outer fold structure of the female header pin tail, thereby effectively preventing the hidden danger of electrical short circuits during the connection of multi-layer PCB boards; the upper and lower simultaneous mating connections of three PCB boards are realized through a single row female header connector, thereby reducing the number of connectors used and the selection cost; through the symmetric design of eight contact surfaces and thinning the elastic contact part, the contact stability and insertion and extraction life are improved, and thus the comprehensive technical effects of high reliability and high-efficiency assembly are achieved.

[0043] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A female connector for preventing short circuits between upper and lower PCB boards, characterized in that, The device includes a female connector core (1) and a female connector terminal (2) assembled therein, characterized in that: the female connector terminal (2) is provided with a female connector terminal upper plug (20), the female connector terminal upper plug (20) includes N contact surfaces; the female connector terminal (2) has a female connector terminal pin tail one (13) and a female connector terminal pin tail two (14) at the pin tail end, the female connector terminal pin tail one (13) is provided with an outwardly bent female connector terminal pin tail fold (28); the bottom of the female connector core (1) is provided with a female connector core terminal pin tail positioning groove one (10) and a female connector core terminal pin tail positioning groove two (11) corresponding to the female connector terminal pin tail one (13) and the female connector terminal pin tail two (14); when the female connector terminal (2) is assembled in the female connector core (1), the female connector terminal pin tail fold (28) makes the female connector terminal pin tail one (13) and the adjacent lower row pin welding pin tail (27) form an increased interval distance (A).

2. The female connector for preventing short circuits between upper and lower PCB boards according to claim 1, characterized in that, The socket (20) on the female terminal includes eight contact surfaces, which are symmetrically distributed: female terminal contact surface one (21) is symmetrical with female terminal contact surface five (25), female terminal contact surface two (22) is symmetrical with female terminal contact surface three (23), female terminal contact surface four (24) is symmetrical with female terminal contact surface six, and female terminal contact surface seven (26) is symmetrical with female terminal contact surface eight; female terminal contact surface four (24) and female terminal contact surface six are both thinned to form elastic contact parts.

3. A female connector for preventing short circuits between upper and lower PCB boards according to claim 2, characterized in that, The female terminal has an inner chamfer (18) at the entrance of the socket (20) and an outer chamfer (19) at the head of the female terminal (2); the female core (1) has a chamfer (30) at the entrance of the female core socket (31).

4. A female connector for preventing short circuits between upper and lower PCB boards according to claim 1, characterized in that, The side wall of the female terminal (2) is provided with a female terminal buckle (12), and the inner wall of the female core (1) is provided with a female core buckle hole (9) that locks with the female terminal buckle (12); both the female terminal pin tail one (13) and the female terminal pin tail two (14) are provided with female terminal pin tail reinforcing ribs (15).

5. A female connector for preventing short circuits between upper and lower PCB boards according to claim 1, characterized in that, The pin tail 1 (13) and pin tail 2 (14) of the female connector are respectively welded and fixed by passing through the welding hole (17) of the female connector pin tail PCB board; the pin tail (27) of the lower pin is welded and fixed by passing through the welding hole (16) of the lower pin PCB board.

6. A female connector for preventing short circuits between upper and lower PCB boards according to claim 1, characterized in that, The female connector can be simultaneously plugged into the upper row of mating pins (3) and the lower row of mating pins (6); the length (B) of the upper row of mating pins (3) is less than the length (C) of the lower row of mating pins (6), and the lower row of mating pins (6) is not soldered to the PCB board (5).

7. A female connector for preventing short circuits between upper and lower PCB boards according to claim 1, characterized in that, The pin tail 1 (13) and pin tail 2 (14) of the female terminal (2) are respectively embedded in the pin tail positioning groove 1 (10) and pin tail positioning groove 2 (11) of the female core (1); the pin tail positioning groove 1 (10) and pin tail positioning groove 2 (11) of the female core (1) form left and right limits for the pin tail 1 (13) and pin tail 2 (14).

8. A female connector for preventing short circuits between upper and lower PCB boards according to claim 2, characterized in that, The contact surfaces four (24) and six of the female terminal (2) are thinned to form elastic contact parts; the contact surfaces one (21) and eight are connected through the contact surfaces four (24), and the contact surfaces five (25) and seven (26) are connected through the contact surfaces six.

9. A female connector for preventing short circuits between upper and lower PCB boards according to claim 1, characterized in that, After the lower row of pins is welded through the welding hole (16) of the lower row of pins PCB board, a gap distance (A) is formed between it and the pin tail (13) of the female terminal; the pin tail of the female terminal is folded outward (28) to increase the gap distance (A) to prevent short circuit.

10. A female connector for preventing short circuits between upper and lower PCB boards according to claim 6, characterized in that, When simultaneously mating with the upper row of pins (3) and the lower row of pins (6), the length (B) of the upper row of pins (3) is less than the length (C) of the lower row of pins (6); the lower row of pins (6) is inserted through the bottom of the female terminal block (29) and is not soldered to the PCB board (5).

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