Thermal shock resistant high density circuit board

Abstract

The present application relates to the technical field of circuit board, particularly relates to a heat shock resistant high-density circuit board, which comprises a circuit board body, U-shaped strips are fixedly installed at four corners of the side wall of the circuit board body, a limiting block is fixedly installed at the end of each U-shaped strip away from the circuit board body, a micro screw is fixedly installed on the side wall of each U-shaped strip, the installation position of the circuit board body is effectively adjusted, the installation is more convenient and labor-saving, the circuit board body is in a suspended state, the heat dissipation effect of the circuit board body is improved under the condition of common ventilation, the heat resistance of the circuit board body is improved, and when the equipment is impacted, the force is transmitted to the damper when the extrusion stress bar is stressed, the damper buffers the force, the impact resistance of the equipment is better, and the protection effect of the circuit board body is better.

Description

Technical Field

[0001] This invention relates to the field of circuit board technology, and in particular to a high-density circuit board resistant to heat shock. Background Technology

[0002] PCB, or Printed Circuit Board, is a crucial component of the electronics industry. Almost every electronic device, from small items like watches and calculators to large systems like computers, communication devices, and military weapons, relies on PCBs for electrical interconnection with integrated circuits and other electronic components. A PCB consists of an insulating substrate, connecting wires, and solder pads for mounting and soldering electronic components. It serves the dual purpose of conducting circuitry and acting as an insulating base, replacing complex wiring to achieve electrical connections between components. This simplifies assembly and soldering, reduces the amount of wiring work required in traditional methods, significantly lessening the workload for workers. Furthermore, it reduces overall size, lowers costs, and improves the quality and reliability of electronic devices. PCBs also offer excellent product consistency, allowing for standardized designs and facilitating mechanization and automation in the production process. Meanwhile, the assembled and debugged printed circuit board can serve as an independent spare part, facilitating the interchangeability and maintenance of the entire product. Currently, printed circuit boards are widely used in the production and manufacturing of electronic products. With the rapid increase in demand for printed circuit boards, especially the rapid development and widespread application of integrated circuits, electronic devices are becoming smaller and smaller, while the density and difficulty of circuit wiring are increasing. This requires printed circuit boards to be constantly updated. Currently, the types of printed circuit boards have evolved from single-sided boards to double-sided boards, multilayer boards, and flexible boards.

[0003] However, as the usage time of existing circuit boards increases, the circuits are prone to localized overheating, which affects the conductivity and may even lead to short circuits, circuit burnout, and unstable operation. Furthermore, the vibration and impact generated by the operation of the equipment can directly affect the local positioning of the circuit board, making it prone to deformation and affecting its performance. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, the present invention provides a high-density circuit board resistant to thermal shock.

[0005] To solve the above technical problems, the present invention provides the following technical solution: a heat shock resistant high-density circuit board, comprising a circuit board body, wherein each of the four corners of the side wall of the circuit board body is fixedly installed with a circuit board built-in U-shaped strip, each of the four circuit board built-in U-shaped strips having a circuit board built-in limiting block fixedly installed on the end away from the circuit board body, each of the four circuit board built-in U-shaped strips having a micro screw fixedly installed on the side wall, and each of the four micro screws having a limiting threaded disc threaded on its surface;

[0006] Adjustment mechanisms are provided on both sides of the circuit board body;

[0007] The adjustment mechanism includes circuit board mounting strips, with two circuit board mounting strips located on both sides of the circuit board body, and a first rectangular groove opened at the upper end of each of the two circuit board mounting strips;

[0008] Both of the first rectangular slots are equipped with shock-absorbing mechanisms.

[0009] The shock absorption mechanism includes a fixed center block, and the four fixed center blocks are respectively fixedly connected to the inner walls of the two first rectangular grooves.

[0010] Preferably, a first connecting groove is symmetrically formed in the inner wall of each of the two first rectangular grooves.

[0011] Preferably, the four miniature screws are slidably disposed in the four first connecting grooves, and the two circuit board mounting strips are provided with a second rectangular groove and a second connecting groove on their opposite ends.

[0012] Preferably, the two sets of second connecting grooves are located on both sides of the two second rectangular grooves, and the four circuit board built-in U-shaped strips are slidably embedded in the two second rectangular grooves.

[0013] Preferably, dampers are symmetrically fixedly installed on the side walls of the four fixed center blocks, and connecting strips are fixedly installed on the ends of the four dampers away from the four fixed center blocks.

[0014] Preferably, each of the four sets of connecting strips has a compression force strip fixedly installed on the end away from the four sets of dampers, and the four sets of compression force strips are in contact with the two circuit board mounting strips.

[0015] Compared with the prior art, the beneficial effects that this invention can achieve are:

[0016] Firstly, during use, the two circuit board mounting strips are installed first. Then, the circuit board body can be moved. As the circuit board body moves, the U-shaped strip inside the circuit board, which is fixed to it, will slide inside the second connecting groove. At the same time, the circuit board body will also drive the micro screw fixed to it to slide inside the first connecting groove. At this time, the micro screw will drive the limiting threaded disc fixed to it to slide. The limiting threaded disc will limit the micro screw. When the circuit board body, the limiting threaded disc, and the micro screw are adjusted to a suitable position, the four limiting threaded discs can be rotated in sequence. Since the limiting threaded discs and the micro screws are connected by threads, the limiting threaded discs will slide on the micro screws when they rotate. When the limiting threaded discs move to fit against the circuit board mounting strips, the circuit board body will be fixed. This allows the installation position of the circuit board body to be effectively adjusted during use, making installation more convenient and labor-saving.

[0017] Secondly, by adjusting the position of the circuit board body, it will be in a suspended state. With ventilation from both above and below, the heat dissipation effect of the circuit board body is enhanced, and the heat resistance of the circuit board body is improved. When the equipment is subjected to impact force, the force will be applied to the pressure strip. When the pressure strip is subjected to force, it will transmit the force to the damper. At this time, the damper will buffer the force, making the equipment more impact resistant and providing better protection for the circuit board body during use. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional exploded structure diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the fixed center block connection structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the circuit board mounting strip structure of the present invention.

[0022] Among them: 11. Circuit board body; 12. Circuit board built-in U-shaped strip; 13. Circuit board built-in limiting block; 14. Miniature screw; 15. Limiting threaded disc; 21. Circuit board mounting strip; 22. First rectangular groove; 23. First connecting slide groove; 24. Second rectangular groove; 25. Second connecting slide groove; 31. Fixed center block; 32. Damper; 33. Connecting strip; 34. Extrusion force strip. Detailed Implementation

[0023] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0024] Example:

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a heat-shock resistant high-density circuit board includes a circuit board body 11. A circuit board built-in U-shaped strip 12 is fixedly installed at each of the four corners of the side wall of the circuit board body 11. A circuit board built-in limiting block 13 is fixedly installed at the end of each of the four circuit board built-in U-shaped strips 12 away from the circuit board body 11. A miniature screw 14 is fixedly installed on the side wall of each of the four circuit board built-in U-shaped strips 12. A limiting threaded disc 15 is threaded on the surface of each of the four miniature screws 14.

[0026] Adjustment mechanisms are provided on both sides of the circuit board body 11;

[0027] The adjustment mechanism includes circuit board mounting strips 21, with two strips located on either side of the circuit board body 11. Each strip has a first rectangular groove 22 at its upper end, and symmetrical first connecting grooves 23 within the inner walls of each groove. Four miniature screws 14 are slidably embedded in the four first connecting grooves 23. Second rectangular grooves 24 and second connecting grooves 25 are formed on opposite ends of each strip. Two sets of second connecting grooves 25 are located on either side of the two second rectangular grooves 24. Four circuit board-integrated U-shaped strips 12 are slidably embedded in the two second rectangular grooves 24. In use, the two circuit board mounting strips 21 are first installed, then the circuit board body 11 is moved. The movement of the circuit board body 11 causes the embedded U-shaped strips 12, which are fixed to it, to move into the second connecting grooves 25. When the circuit board body 11 slides, the micro screw 14 fixed to it will also slide inside the first connecting groove 23. At this time, the micro screw 14 will drive the limiting threaded disc 15 fixed to it to slide as well. The limiting threaded disc 15 will limit the micro screw 14. When the circuit board body 11, the limiting threaded disc 15 and the micro screw 14 are adjusted to a suitable position, the four limiting threaded discs 15 can be rotated in sequence. Since the limiting threaded disc 15 and the micro screw 14 are threadedly connected, the limiting threaded disc 15 will slide on the micro screw 14 when it rotates. When the limiting threaded disc 15 moves to fit against the circuit board mounting strip 21, the circuit board body 11 will be fixed. This allows the installation position of the circuit board body 11 to be effectively adjusted during use, making installation more convenient and labor-saving.

[0028] Both first rectangular slots 22 are equipped with shock absorption mechanisms.

[0029] The damping mechanism includes four fixed center blocks 31, which are respectively fixedly connected to the inner walls of two first rectangular grooves 22. Dampers 32 are symmetrically fixedly installed on the side walls of each of the four fixed center blocks 31. Connecting strips 33 are fixedly installed on the ends of the four dampers 32 away from the four fixed center blocks 31. Compression bearing strips 34 are fixedly installed on the ends of the four connecting strips 33 away from the four dampers 32. The four compression bearing strips 34 are in contact with the two circuit board mounting strips 21. After adjusting the position of the circuit board body 11, the circuit board body 11 will be in a suspended state, strengthening the damping mechanism under conditions of combined top and bottom ventilation. The heat dissipation effect of the circuit board body 11 is improved, and the heat resistance of the circuit board body 11 is enhanced. When the equipment is subjected to impact force during operation, the force will be applied to the compression force strip 34. When the compression force strip 34 is subjected to force, it will transmit the force to the damper 32. At this time, the damper 32 will buffer the force. By placing the damper 32 between 31 and the two 33, the impact resistance of the equipment is better during use, and it can simultaneously withstand the force from above and below, making its force direction more variable. It can shield the circuit board body 11 from multiple directions, thereby enhancing the protection effect of the circuit board body 11.

[0030] Working principle:

[0031] The first step is to install the two circuit board mounting strips 21. Then, the circuit board body 11 can be moved. As the circuit board body 11 moves, the U-shaped strip 12 inside the circuit board fixed to it will slide inside the second connecting groove 25. At the same time, the circuit board body 11 will also drive the miniature screw 14 fixed to it to slide inside the first connecting groove 23. At this time, the miniature screw 14 will drive the limiting threaded disc 15 fixed to it to slide. The limiting threaded disc 15 then limits the movement of the miniature screw 14. After the circuit board body 11, the limiting threaded discs 15, and the miniature screws 14 are adjusted to a suitable position, the four limiting threaded discs 15 can be rotated in sequence. Since the limiting threaded discs 15 and the miniature screws 14 are threadedly connected, the limiting threaded discs 15 will slide on the miniature screws 14 when they rotate. When the limiting threaded discs 15 move to fit against the circuit board mounting strip 21, the circuit board body 11 will be fixed. This allows the installation position of the circuit board body 11 to be effectively adjusted during use, making installation more convenient and labor-saving.

[0032] The second step involves adjusting the position of the circuit board body 11, which is now suspended in mid-air. This enhances the heat dissipation of the circuit board body 11 and improves its heat resistance under combined top and bottom ventilation. When the equipment is subjected to impact, the force is applied to the compression strip 34, which then transmits the force to the damper 32. The damper 32 buffers the force. By placing the damper 32 between 31 and the two 33s, the equipment exhibits better impact resistance during use and can simultaneously withstand forces from above and below, resulting in more varied force directions. This multi-directional shielding of the circuit board body 11 further enhances its protective effect.

[0033] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A heat-shock resistant high-density circuit board, comprising a circuit board body (11), characterized in that: The circuit board body (11) has four corners of its side wall with built-in U-shaped strips (12) fixedly installed. Each of the four built-in U-shaped strips (12) has a built-in limiting block (13) fixedly installed on one end away from the circuit board body (11). Each of the four built-in U-shaped strips (12) has a miniature screw (14) fixedly installed on its side wall. Each of the four miniature screws (14) has a limiting threaded disc (15) threaded on its surface. Adjustment mechanisms are provided on both sides of the circuit board body (11); The adjustment mechanism includes a circuit board mounting strip (21), two circuit board mounting strips (21) are located on both sides of the circuit board body (11), and a first rectangular groove (22) is provided at the upper end of each of the two circuit board mounting strips (21), and a shock absorption mechanism is provided inside each of the two first rectangular grooves (22). The shock absorption mechanism includes a fixed center block (31), and the four fixed center blocks (31) are respectively fixedly connected to the inner walls of the two first rectangular grooves (22); Dampers (32) are symmetrically fixedly installed on the side walls of the four fixed center blocks (31). Connecting strips (33) are fixedly installed on the ends of the four sets of dampers (32) away from the four fixed center blocks (31). Extrusion force strips (34) are fixedly installed on the ends of the four sets of connecting strips (33) away from the four sets of dampers (32). The four sets of extrusion force strips (34) are in contact with the two circuit board mounting strips (21). The inner walls of the two first rectangular grooves (22) are symmetrically provided with first connecting grooves (23). The four micro screws (14) are respectively slidably installed in the four first connecting grooves (23). The two circuit board mounting strips (21) are provided with second rectangular grooves (24) and second connecting grooves (25) on opposite ends. The two sets of second connecting grooves (25) are respectively located on both sides of the two second rectangular grooves (24). The four circuit board built-in U-shaped strips (12) are respectively slidably installed in the two second rectangular grooves (24).

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