A composite PCBA board assembly

Abstract

This utility model relates to the field of PCBA board technology and discloses a composite PCBA board assembly, including a base and a PCBA board body. The sidewall of the PCBA board body is slidably connected to the inside of the base. Cavities are formed at the four corners of the base, and limiting mechanisms are installed inside. A fixing mechanism is provided between two base pieces, and a buffer pad is fixedly connected to the bottom of the base. The limiting mechanism includes a slider and a spring. The sidewall of the slider is slidably connected to the inside of the cavity, and the spring is disposed inside the cavity, with one side of the spring fixedly connected inside the cavity. In this utility model, the PCBA board is pressed into the base. Under the arc-shaped guide, the slider slides into the cavity and causes the spring to deform. After the slider is fully inserted, the PCBA board slides to a predetermined position. After release, the spring pushes the slider back to its original position, and the extended part of the slider presses against the top of the PCBA board to complete the fixation. Through the cooperation between the above structures, the installation difficulty is reduced, and soldering with solder bars is not required.

Description

Technical Field

[0001] This utility model relates to the field of PCBA board technology, and in particular to a composite PCBA board assembly. Background Technology

[0002] As electronic products become increasingly functional and smaller, higher demands are placed on the performance and structure of circuit boards. PCBA boards, as crucial carriers for the mounting and connection of electronic components, are widely used in consumer electronics, automotive electronics, industrial control, and communication equipment. To meet the demands of multifunctional, highly integrated, and thinner applications, traditional PCBA boards made of single materials or structures are no longer sufficient. This has led to the development of composite PCBA board assemblies formed by layering different materials or functional layers. Through multi-layered structures or the combination of dissimilar materials, composite PCBA board assemblies can ensure mechanical strength while also achieving excellent electrical performance, heat resistance, and reliability, thus improving overall product performance and adapting to more complex and demanding application environments.

[0003] Existing composite PCBA board assemblies typically achieve functional integration by laminating, stacking, or partially bonding different substrates. However, existing composite PCBA board assemblies usually require soldering for fixation during installation. This method not only increases the complexity of the process but also places high demands on the soldering skills of operators, making it easy for improper operation to lead to weak soldering or damage to the board. Therefore, a composite PCBA board assembly is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a composite PCBA board assembly, which aims to improve the problem that the existing technology requires the use of solder bars for welding and fixing, which is prone to poor welding or damage to the board due to improper operation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A composite PCBA board assembly includes a base and a PCBA board body. The sidewall of the PCBA board body is slidably connected to the inside of the base. The base has cavities at its four corners and is equipped with a limit mechanism. A fixing mechanism is provided between the two bases. A buffer pad is fixedly connected to the bottom of the base.

[0007] The limiting mechanism includes a slider and a spring. The side wall of the slider is slidably connected to the inside of the cavity. The spring is disposed inside the cavity. One side of the spring is fixedly connected to the inside of the cavity, and the other side of the spring is fixedly connected to the side wall of the slider.

[0008] As a further description of the above technical solution:

[0009] The slider sidewall is provided with an arc angle.

[0010] As a further description of the above technical solution:

[0011] The fixing mechanism includes a protrusion and a groove inside the base. The sidewall of the protrusion is fixedly connected to one side of the base, and the groove is opened on the other side inside the base. The protrusion and the groove fit together.

[0012] As a further description of the above technical solution:

[0013] The base has a horizontal groove inside and a connecting groove inside. The horizontal groove and the connecting groove are connected and a fixing strip is slidably connected inside.

[0014] As a further description of the above technical solution:

[0015] The fixing strip includes a retaining strip, a horizontal plate, and a vertical plate. The side wall of the retaining strip is slidably connected between the two bases. The side wall of the horizontal plate is fixedly connected to the side wall of the retaining strip. The side wall of the vertical plate is fixedly connected to the outside of the horizontal plate.

[0016] As a further description of the above technical solution:

[0017] The sidewall of the horizontal plate is slidably connected inside the horizontal groove, and the sidewall of the vertical plate is slidably connected inside the connecting groove.

[0018] As a further description of the above technical solution:

[0019] The base has a slot inside, and the slot, the horizontal groove and the connecting groove are connected.

[0020] As a further description of the above technical solution:

[0021] A card plate is fixedly connected to one side of the fixing strip, and the side wall of the card plate is slidably connected inside the card slot.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the PCBA board is pressed into the base. Under the arc-shaped guide, the slider slides into the cavity and drives the spring to deform. After the slider is fully inserted, the PCBA board slides to the predetermined position. After being released, the spring pushes the slider to reset. The extended part of the slider presses against the top of the PCBA board to complete the fixation. Through the cooperation between the above structures, the installation difficulty is reduced and there is no need to use solder bars for soldering.

[0024] 2. In this utility model, the two bases are reliably connected by the initial insertion of the protrusion and the groove, combined with the gradual positioning and locking of the fixing strip, the horizontal plate, the vertical plate and the card plate, thereby ensuring the precise alignment of the two PCBA boards. Through the cooperation between the above structures, the precision alignment of the PCBA boards is guaranteed when they are placed. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a composite PCBA board assembly proposed in this utility model;

[0026] Figure 2 This is a longitudinal sectional view of the base of a composite PCBA board assembly proposed in this utility model;

[0027] Figure 3 This is a cross-sectional view of the base of a composite PCBA board assembly proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the base splicing structure of a composite PCBA board assembly proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the fixing strip of a composite PCBA board assembly proposed in this utility model.

[0030] Legend:

[0031] 1. Base; 2. Buffer pad; 3. PCBA board; 4. Cavity; 5. Slider; 6. Spring; 7. Curved corner; 8. Protrusion; 9. Groove; 10. Horizontal groove; 11. Connecting groove; 12. Card slot; 13. Card strip; 14. Horizontal plate; 15. Vertical plate; 16. Card plate. Detailed Implementation

[0032] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1-3This utility model provides an embodiment of a composite PCBA board assembly, including a base 1 and a PCBA board 3. The PCBA board 3 is an electronic functional component assembled from components through surface mount technology, through-hole mounting technology, and other processes on a printed circuit board. The sidewalls of the PCBA board 3 are slidably connected to the inside of the base 1 to ensure smooth insertion and positioning during assembly. Cavities 4 are provided at the four corners of the base 1, and limit mechanisms are installed inside to achieve quick locking and stable support of the PCBA board 3. A fixing mechanism is provided between the two bases 1 to further enhance the overall stability and structural strength of the assembly, effectively preventing damage due to... In case of loosening or displacement caused by external impact, the bottom of the base 1 is fixedly connected to a buffer pad 2, which can absorb vibration and reduce impact force, thereby improving the shock resistance and service life of the PCBA board 3 during use; the limiting mechanism includes a slider 5 and a spring 6. The side wall of the slider 5 is slidably connected to the inside of the cavity 4. The internal space of the cavity 4 can completely accommodate the slider 5. The spring 6 is set inside the cavity 4. One side of the spring 6 is fixedly connected to the inside of the cavity 4, and the other side of the spring 6 is fixedly connected to the side wall of the slider 5. The spring 6 is used to provide the force for the slider 5 to reset. The side wall of the slider 5 is provided with an arc angle 7, which makes it easy for the PCBA board 3 to smoothly trigger the slider 5 to slide during assembly, thereby squeezing the spring 6;

[0034] Reference Figures 3-5The fixing mechanism includes a protrusion 8 and a groove 9 inside the base 1. The sidewall of the protrusion 8 is fixedly connected to one side of the base 1, and the groove 9 is located inside the other side of the base 1. This enables quick alignment and insertion of the two bases 1, improving assembly efficiency and reducing manual correction errors. The protrusion 8 and the groove 9 fit together, effectively improving the overall stability of the two bases 1 in the connected state, preventing displacement or loosening due to vibration, impact, or temperature changes during use, and ensuring good spatial consistency between the PCBA boards 3. The base 1 has a transverse groove 10 and a connecting groove 11 inside. The transverse groove 10 and the connecting groove 11 are connected and a fixing strip is slidably connected inside. The fixing strip includes a retaining strip 13, a horizontal plate 14, and a vertical plate 15. The sidewall of the retaining strip 13 is slidably connected between the two bases 1, and the sidewall of the horizontal plate 14 is fixedly connected to... On the side wall of the locking strip 13, the side wall of the longitudinal plate 15 is fixedly connected to the outside of the horizontal plate 14, the side wall of the horizontal plate 14 is slidably connected to the inside of the horizontal groove 10, and the side wall of the longitudinal plate 15 is slidably connected to the inside of the connecting groove 11. This not only ensures smooth positioning during the insertion of the fixing strip, but also strengthens the overall locking effect through multi-directional limiting. This allows the connected base 1 to maintain a high-strength and high-stability assembly state under stress. The base 1 has a locking groove 12 inside, and the locking groove 12, the horizontal groove 10, and the connecting groove 11 are connected. A locking plate 16 is fixedly connected to one side of the fixing strip, and the side wall of the locking plate 16 is slidably connected to the inside of the locking groove 12, which plays the role of final locking. Through the limiting and locking of the locking plate 16, multi-point support and locking can be formed after the fixing strip insertion is completed, effectively preventing the base 1 from loosening, misaligning, or slipping in complex environments.

[0035] Working principle: When fixing the PCBA board 3, the base 1 can be fixed first, and then the PCBA board 3 can be placed inside the base 1 and pressed down. As the PCBA board 3 moves downward, the slider 5 will slide into the cavity 4 under the guidance of the arc angle 7, and the spring 6 will deform. When the slider 5 slides completely into the cavity 4, the PCBA board 3 will slide into the space inside the base 1. After the PCBA board 3 is placed, the slider 5 loses the pressure. At this time, the spring 6 pushes the slider 5 to return to its original position. The part of the slider 5 that exceeds the cavity 4 will press on the top of the PCBA board 3 to fix the position of the PCBA board 3.

[0036] When it is necessary to align two PCBA boards 3, first insert the protrusion 8 on the side of one base 1 into the groove 9 opened in the other base 1 to initially connect the two bases 1. Then insert the fixing strip between the two bases 1, and let the horizontal plate 14 slide into the interior of the horizontal groove 10 and the vertical plate 15 slide into the interior of the connecting groove 11. Finally, press the clamping plate 16 into the interior of the clamping slot 12 to fix the two bases 1, thereby completing the alignment of the two PCBA boards 3.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A composite PCBA plate assembly, comprising a base (1) and a PCBA plate body (3), characterized in that: The PCBA board (3) is slidably connected to the inside of the base (1). The four corners of the base (1) are provided with cavities (4) and limit mechanisms are provided inside. A fixing mechanism is provided between the two bases (1). A buffer pad (2) is fixedly connected to the bottom of the base (1). The limiting mechanism includes a slider (5) and a spring (6). The side wall of the slider (5) is slidably connected to the inside of the cavity (4). The spring (6) is disposed inside the cavity (4). One side of the spring (6) is fixedly connected to the inside of the cavity (4), and the other side of the spring (6) is fixedly connected to the side wall of the slider (5).

2. The composite PCBA board assembly of claim 1, wherein: The slider (5) has an arc angle (7) on its side wall.

3. The composite PCBA board assembly according to claim 1, characterized in that: The fixing mechanism includes a protrusion (8) and a groove (9) opened inside the base (1). The side wall of the protrusion (8) is fixedly connected to one side of the base (1), and the groove (9) is opened inside the base (1) on the other side. The protrusion (8) and the groove (9) match each other.

4. A composite PCBA board assembly according to claim 3, characterized in that: The base (1) has a horizontal groove (10) inside and a connecting groove (11) inside. The horizontal groove (10) and the connecting groove (11) are connected and a fixing strip is slidably connected inside.

5. A composite PCBA board assembly according to claim 4, characterized in that: The fixing strip includes a clip (13), a horizontal plate (14) and a vertical plate (15). The side wall of the clip (13) is slidably connected between the two bases (1). The side wall of the horizontal plate (14) is fixedly connected to the side wall of the clip (13). The side wall of the vertical plate (15) is fixedly connected to the outside of the horizontal plate (14).

6. A composite PCBA board assembly according to claim 5, characterized in that: The sidewall of the horizontal plate (14) is slidably connected to the inside of the horizontal groove (10), and the sidewall of the vertical plate (15) is slidably connected to the inside of the connecting groove (11).

7. A composite PCBA board assembly according to claim 5, characterized in that: The base (1) has a slot (12) inside, and the slot (12), the horizontal groove (10) and the connecting groove (11) are connected.

8. A composite PCBA board assembly according to claim 7, characterized in that: A card plate (16) is fixedly connected to one side of the fixing strip, and the side wall of the card plate (16) is slidably connected inside the card slot (12).

Images