Multidirectional flexible PCB (Printed Circuit Board) contact element

Abstract

The utility model relates to the technical field of PCB (Printed Circuit Board) contact elements, in particular to a multidirectional flexible PCB contact element, which solves the problems that a contact piece in the prior art is single in deformation direction and cannot meet higher requirements on vibration resistance and mechanical shock resistance, and comprises a jack part which comprises a bottom plate, the left side and the right side of the bottom plate are connected with symmetrically-arranged connecting parts, the connecting parts are of downward bending structures, the lower ends of the connecting parts are connected with pins, the front side and the rear side of the bottom plate are connected with symmetrically-arranged front elastic pieces and rear elastic pieces, and a jack space is formed between the front elastic pieces and the rear elastic pieces. The beneficial effects are that the jack part is connected with the front side and the rear side of the bottom plate, and the inclined connecting section is arranged on the connecting part; the first connecting strip and the second connecting strip turn for multiple times through the arc line section, so that the contact element can deform in multiple directions of x, y and z, that is, the contact element has flexibility in multiple directions, and can meet higher requirements on vibration resistance and mechanical shock resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board contacts, in particular to a multi-directional flexible PCB board contact. Background Art

[0002] With the rapid development of new energy electric vehicles, their circuit systems are developing towards integration and modularization. Under this development trend, the PCB board plays a key role in current conduction, signal transmission, etc., which is inseparable from the application of welding terminals; at present, there are various styles and models of terminals on the PCB board; with the improvement of customers' requirements for the functionality, safety, etc. of automobiles, higher requirements are also put forward for the welding terminals on the PCB; under different usage conditions, it is required that the PCB welding terminals not only realize their functions but also have higher vibration resistance and mechanical shock resistance. However, the existing PCB terminals on the market do not have flexibility or only have single-direction flexibility after being welded to the PCB, resulting in difficulty in meeting the requirements for higher vibration resistance and mechanical shock resistance.

[0003] At present, the application mostly adopts multiple bends of the connecting part to improve the flexibility of the product. This scheme has more bends, and it is not easy to control the product quality stability. After the bend is unfolded, the material utilization rate is low and the cost is high. For example: The patent with the patent number CN118137188A discloses a chip contact jack structure, socket and connector. The chip contact jack structure includes at least two chip contact pieces that can be electrically connected; each chip contact piece includes a connecting part, a connecting body connected to the connecting part, and a conductive sheet. The conductive sheet is provided with at least one bend. One end of the conductive sheet is connected to the corresponding connecting body, and the other end is provided with a contact part. A jack space for inserting and mating with a mating chip pin is formed between the conductive sheets of adjacent chip contact pieces. The socket includes several above-mentioned chip contact jack structures. The connector includes the above-mentioned socket and plug.

[0004] The above chip contact jack structure is a split structure, which causes the manufacturing process of the contact piece to be cumbersome and affects the manufacturing efficiency; in addition, the conductive sheet of the above chip contact piece can only be deformed to both sides, that is, the contact piece only has single-direction flexibility and cannot meet the requirements for higher vibration resistance and mechanical shock resistance. Summary of the Utility Model

[0005] The utility model provides a multi-directional flexible PCB board contact, which solves the problem that the deformation direction of the contact piece in the prior art is single and cannot meet the requirements for higher vibration resistance and mechanical shock resistance.

[0006] The technical solution of the utility model is realized as follows:

[0007] A multi-directional flexible PCB board contact member includes a jack portion. The jack portion includes a bottom plate. Symmetrically arranged connecting portions are connected to the left and right sides of the bottom plate. The connecting portions are downwardly bent structures. Pins are connected to the lower ends of the connecting portions. Front elastic pieces and rear elastic pieces are symmetrically arranged and connected to the front and rear sides of the bottom plate. A jack space is formed between the front elastic piece and the rear elastic piece. The symmetry plane between the two connecting portions is perpendicularly arranged with respect to the symmetry plane between the front elastic piece and the rear elastic piece. The front elastic piece and the rear elastic piece enable the contact member to deform in the front and rear directions, and the downwardly bent structure of the connecting portion enables the contact member to deform in the up and down direction, enabling the contact member to have deformation capabilities in the y direction and the z direction, realizing multi-directional deformation of the contact member, improving the anti-vibration performance of the contact member, and meeting the requirements for higher vibration resistance and mechanical shock performance.

[0008] The connecting portion includes an inclined connecting section and a horizontal connecting section. The horizontal connecting section is integrally connected to the bottom plate. The upper end of the inclined connecting section is connected to the horizontal connecting section, and the lower end of the inclined connecting section is connected to the pin. The inclined connecting plate can enhance the support stability of the connecting portion to a certain extent. After the pin is connected to the PCB board, the connecting portion provides stable support for the jack.

[0009] The inclined connecting section is integrally connected to the horizontal connecting section through an arc-shaped bending structure. When the contact member is stressed, the arc-shaped bending structure deforms, changing the angle between the inclined connecting section and the horizontal connecting section, realizing elastic deformation of the connecting portion.

[0010] The inclination angle range of the inclined connecting section is 20° to 70°. When the contact member is stressed, the angle between the inclined connecting section and the horizontal connecting section changes, and then elastic deformation occurs, enabling the contact member to deform in the z-axis direction and improving the ability of the contact member to resist vibration in the z-axis direction.

[0011] The pin includes a long pin and a short pin. At least one long pin and at least one short pin are connected to the lower end of the inclined connecting section. Both the long pin and the short pin are welded to the PCB board. The long pin plays a role in precise positioning. During the installation of the contact member onto the PCB board, the long pin is first inserted into the PCB board, and then the short pin is inserted into the PCB board. After the insertion is completed, welding is performed to stably connect the contact member to the PCB board.

[0012] Both the long pin and the short pin are perpendicularly arranged with respect to the bottom plate. This facilitates the insertion connection of the long pin and the short pin to the PCB board and realizes the positioning of the contact member on the PCB board.

[0013] The connecting part includes two symmetrically arranged first connecting bars. One end of the first connecting bar is integrally connected to the bottom plate, and the other end of the first connecting bar is connected to the pin. The first connecting bar includes an arc segment and a straight segment. When connected by the arc segment and the straight segment, the first connecting bar can turn in multiple directions, so that the connecting part has the deformation ability in the x direction, and further improves the anti-vibration ability of the contact.

[0014] Two symmetrically arranged second connecting bars are provided on the outer side of the first connecting bar. One end of the second connecting bar is integrally connected to the bottom plate, and the other end of the second connecting bar is integrally connected to the pin. The second connecting bar includes an arc segment and a straight segment. The second connecting bar cooperates with the first connecting bar to enhance the connection strength of the connecting part and ensure the structural stability of the contact.

[0015] The front elastic pieces and the rear elastic pieces correspond to each other one by one, and the number of the front elastic pieces or the rear elastic pieces is at least one. Contacts are provided on each front elastic piece and rear elastic piece. After the contact is connected to the plug, multiple contacts are conducted to ensure the reliable connection of the structure of the contact and the plug.

[0016] Avoidance holes are provided on the bottom plate, and the avoidance holes correspond to the jacks in terms of spatial position. After the plug is inserted into the contact, the plug is prevented from contacting the bottom plate, ensuring the reliability of the connection between the elastic pieces on the contact and the plug.

[0017] The beneficial effects produced by the present utility model are as follows: The jack part is connected to the front and rear sides of the bottom plate, enabling the contact to have the deformation ability in the y direction. The inclined connecting section on the connecting part enables the bottom plate to move up and down according to the inclination angle of the inclined connecting section, so that the contact has the deformation ability in the z direction; the first connecting bar and the second connecting bar on the connecting part turn multiple times through the arc segment, enabling the connecting part to sway left and right, so that the contact has the deformation ability in the x direction; thus, the contact has the deformation ability in multiple directions of x, y, and z, that is, the contact has multi-directional flexibility and can meet the requirements of higher vibration resistance and mechanical shock resistance performance.

[0018] The elastic piece part and the connecting part are respectively arranged around the bottom plate, enabling the contact to adopt an integral structure. The production of the contact can be completed by using the stamping and bending process, simplifying the production process of the contact, improving the material utilization rate, and reducing the production cost.

[0019] The pin includes a long pin. When the contact is installed on the PCB board, the long pin can accurately position the contact and ensure the accuracy of the installation position of the contact on the PCB board. Description of the Drawings

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0021] Figure 1 Schematic diagram of a multi-directional flexible PCB board contact structure of the present invention.

[0022] Figure 2 Front view of the contact;

[0023] Figure 3 Top view of the contact;

[0024] Figure 4 Left view of the contact;

[0025] Figure 5 Schematic diagram of the structure of the contact before bending.

[0026] In the figure: 1. Pin, 11. Long pin, 12. Short pin, 2. Connection part, 21. Inclined connection section, 22. Horizontal connection section, 23. First connection strip, 24. Second connection strip, 3. Jack part, 31. Bottom plate, 32. Front elastic piece, 33. Rear elastic piece, 34. Avoidance hole. Specific embodiments

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0028] It should be noted that: in the present invention, the front-rear direction is the y-axis direction, the left-right direction is the x-axis direction, and the up-down direction is the z-axis direction.

[0029] Embodiment 1, as Figure 1 、 Figure 3 、 Figure 4As shown, a multi-directional flexible PCB board contact includes a jack portion 3. The jack portion 3 includes a bottom plate 31. Symmetrically arranged connecting portions 2 are connected to the left and right sides of the bottom plate 31. The connecting portions 2 are downwardly bent structures. Pins 1 are connected to the lower ends of the connecting portions 2. Symmetrically arranged front elastic pieces 32 and rear elastic pieces 33 are connected to the front and rear sides of the bottom plate 31. A jack space is formed between the front elastic piece 32 and the rear elastic piece 33. The pins 1 are welded to the PCB board. The connecting portions 2 connect the pins 1 and the jack portion 3. The front elastic piece 32 and the rear elastic piece 33 are located on the front and rear sides of the bottom plate 31, enabling the contact to deform in the y direction. The downwardly bent structure of the connecting portions 2 enables the contact to deform in the z direction, realizing multi-directional deformation of the contact and effectively enhancing the anti-vibration ability of the contact.

[0030] In addition, the connecting portions 2 and the jack portion 3 are arranged around the bottom plate 31 to achieve integral molding connection of the contact, effectively reducing the manufacturing difficulty of the contact and the production cost of the contact.

[0031] Furthermore, Figure 2 As shown, the connecting portion 2 includes an inclined connecting section 21 and a horizontal connecting section 22. The horizontal connecting section 22 is integrally connected to the bottom plate 31. The upper end of the inclined connecting section 21 is connected to the horizontal connecting section 22, and the lower end of the inclined connecting section 21 is connected to the pin 1. The inclined connecting section 21 can enhance the support stability of the connecting portion 2 to a certain extent. After the pin 1 is connected to the PCB board, stable support is provided to the jack portion 3 through the connecting portion 2. The inclined connecting section 21 is integrally connected to the horizontal connecting section 22 through an arc-shaped bending structure. When the contact is stressed, the arc-shaped bending structure deforms, changing the angle between the inclined connecting section 21 and the horizontal connecting section 22, realizing elastic deformation of the connecting portion 2, and further realizing deformation in the z direction.

[0032] Furthermore, the inclination angle range of the inclined connecting section 21 is 20° to 70°. In this embodiment, when the contact is in the initial state, the inclination angle of the inclined connecting section 21 is 40°. When the contact is subjected to vibration or mechanical shock, the arc-shaped bending structure deforms, changing the angle between the inclined connecting section 21 and the horizontal connecting section 22, realizing elastic deformation of the connecting portion 2.

[0033] Furthermore, as Figure 2 shown, the pin 1 includes a long pin 11 and a short pin 12. At least one long pin 11 and at least one short pin 12 are connected to the lower end of the inclined connecting section 21. In this embodiment, one long pin 11 and one short pin 12 are connected to the lower end of one inclined connecting section 21. Both the long pin 11 and the short pin 12 are welded to the PCB board. The long pin 11 plays a role in precise positioning. During the process of installing the contact to the PCB board, the long pin 11 is first inserted into the PCB board, and then the short pin 12 is inserted into the PCB board. After insertion, welding is performed to stably connect the contact to the PCB board.

[0034] Further, both the long pin 11 and the short pin 12 are arranged perpendicular to the bottom plate 31. This facilitates the insertion connection between the long pin 11 and the short pin 12 and the PCB board, realizing the positioning of the contact on the PCB board.

[0035] Embodiment 2: On the basis of Embodiment 1, a multi-directional flexible PCB board contact, the connecting portion 2 includes two symmetrically arranged first connecting strips 23. One end of the first connecting strip 23 is integrally connected to the bottom plate 31, and the other end of the first connecting strip 23 is connected to the pin 1. The first connecting strip 23 includes an arc segment and a straight segment. On the outer side of the first connecting strip 23, there are two symmetrically arranged second connecting strips 24. One end of the second connecting strip 24 is integrally connected to the bottom plate 31, and the other end of the second connecting strip 24 is integrally connected to the pin 1. The second connecting strip 24 includes an arc segment and a straight segment. As Figure 5 shown, the first connecting strip 23 and the second connecting strip 24 turn through a plurality of arc segments, and the first connecting strip 23 and the second connecting strip 24 do not interfere with each other. In addition, the first connecting strip 23 and the second connecting strip 24 form an I-shaped structure. During the manufacturing process of the contact, it is bent from the middle of the I-shaped structure. At this time, the first connecting strip 23 and the second connecting strip 24 enable the contact to deform in the x direction, further increasing the deformation direction of the contact and improving the vibration resistance and mechanical shock resistance of the contact.

[0036] Further, the front elastic pieces 32 and the rear elastic pieces 33 correspond to each other one by one, and the number of the front elastic pieces 32 or the rear elastic pieces 33 is at least one. In this embodiment, the number of both the front elastic pieces 32 and the rear elastic pieces 33 is three. The front elastic pieces 32 and the rear elastic pieces 33 both have a plurality of bending structures. The front elastic pieces 32 and the rear elastic pieces 33 are arranged oppositely, reducing the distance between the elastic pieces, increasing the contact force of the elastic pieces, and improving the connection stability of the contact. And each of the front elastic pieces 32 and the rear elastic pieces 33 is provided with a contact point. After the contact is connected to the plug, a plurality of contact points are conducted, ensuring the reliable connection between the contact and the plug structure.

[0037] Further, the bottom plate 31 is provided with a relief hole 34, and the relief hole 34 corresponds to the jack in terms of spatial position. After the plug is inserted into the contact, the relief hole 34 can effectively prevent the plug from contacting the bottom plate 31, ensuring the reliability of the connection between the elastic piece on the contact and the plug.

[0038] 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 multi-directional flexible PCB contact, characterized in that: The socket portion (3) comprises a socket portion (3), the socket portion (3) comprises a bottom plate (31), the left and right sides of the bottom plate (31) are connected to symmetrically arranged connection portions (2), the connection portion (2) is a downwardly bent structure, the lower end of the connection portion (2) is connected to a pin (1), the front and rear sides of the bottom plate (31) are connected to symmetrically arranged front spring pieces (32) and rear spring pieces (33), and a socket space is formed between the front spring pieces (32) and the rear spring pieces (33).

2. The multi-directional flexible PCB contact according to claim 1, characterized in that: The connecting portion (2) comprises an inclined connecting section (21) and a horizontal connecting section (22); the horizontal connecting section (22) is integrally connected to the bottom plate (31); the upper end of the inclined connecting section (21) is connected to the horizontal connecting section (22); and the lower end of the inclined connecting section (21) is connected to the pin (1).

3. The multi-directional flexible PCB contact according to claim 2, characterized in that: The inclined connecting section (21) is integrally connected to the horizontal connecting section (22) via an arc-shaped bending structure.

4. The multi-directional flexible PCB contact according to claim 3, characterized in that: The inclination angle of the inclined connecting section (21) ranges from 20° to 70°.

5. The multi-directional flexible PCB contact according to any one of claims 2 to 4, characterized in that: The pin (1) comprises a long pin (11) and a short pin (12), and the lower end of the inclined connecting section (21) is connected to at least one long pin (11) and at least one short pin (12).

6. The multi-directional flexible PCB contact according to claim 5, characterized in that: The long pins (11) and the short pins (12) are arranged perpendicular to the bottom plate (31).

7. The multi-directional flexible PCB contact according to any one of claims 1 to 4 and 6, characterized in that: The connecting portion (2) comprises two symmetrically arranged first connecting bars (23), one end of the first connecting bar (23) is integrally connected to the bottom plate (31), the other end of the first connecting bar (23) is connected to the pin (1), and the first connecting bar (23) comprises an arc segment and a straight line segment.

8. The multi-directional flexible PCB contact according to claim 7, characterized in that: Two symmetrically arranged second connecting bars (24) are provided on the outer side of the first connecting bar (23); one end of the second connecting bar (24) is integrally connected to the bottom plate (31); the other end of the second connecting bar (24) is integrally connected to the pin (1); the second connecting bar (24) comprises an arc segment and a straight line segment.

9. The multi-directional flexible PCB contact according to claim 1 or 8, characterized in that: The front spring pieces (32) correspond to the rear spring pieces (33) one by one, and the number of the front spring pieces (32) or the rear spring pieces (33) is at least one.

10. The multi-directional flexible PCB contact according to claim 9, characterized in that: The bottom plate (31) is provided with an avoidance hole (34), and the avoidance hole (34) corresponds to the spatial position of the insertion hole.

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