A second order rigid-flexible printed circuit board

Abstract

The utility model relates to a kind of second-order rigid-flexible board, including mounting frame, the inner wall of mounting frame is provided with rigid-flexible board body, position adjusting mechanism and heat dissipation mechanism are provided on the mounting frame, the position adjusting mechanism includes sliding slot, screw rod, mounting block and mounting hole, the sliding slot is opened in the inner wall of the mounting frame, the screw rod is connected in the inner wall of the sliding slot by rotation, the mounting block is threadedly connected on the screw rod, the mounting hole is opened on the mounting block. By being provided with position adjusting mechanism, the position of mounting hole can be adjusted according to the installation surface condition, cooperate bolt, the installation of second-order rigid-flexible board is facilitated, by being provided with heat dissipation mechanism, the function of increasing second-order rigid-flexible board active heat dissipation is played, it is conducive to long-term use of second-order rigid-flexible board.

Description

Technical Field

[0001] This utility model relates to the technical field of second-order rigid-flex PCBs, specifically a second-order rigid-flex PCB. Background Technology

[0002] As electronic devices develop towards high performance, high density, and miniaturization, second-order rigid-flex PCBs have been widely used in fields such as foldable terminals, aerospace, and precision medical equipment due to their excellent space utilization and electrical interconnect reliability.

[0003] However, in actual assembly and use, traditional rigid-flex PCBs still face two major challenges: First, because the mounting holes in the rigid PCB area are fixed, when faced with complex internal structures or minor assembly tolerances, misalignment between the mounting holes and the housing supports often occurs, generating assembly stress. This not only makes installation inconvenient but may also cause the flexible PCB area to break due to forced bending, affecting the overall structural reliability. Second, as chip power consumption continues to increase, passive heat dissipation in the rigid PCB area alone is no longer sufficient to meet the heat dissipation requirements under high heat flux density. Especially during long-term high-load operation, heat accumulation can easily lead to component performance degradation or even damage, shortening the product's lifespan.

[0004] Therefore, a second-order rigid-flex PCB is proposed to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a two-stage rigid-flex plate.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a two-stage rigid-flex plate, comprising a mounting frame, wherein a rigid-flex plate body is provided on the inner wall of the mounting frame, and a position adjustment mechanism and a heat dissipation mechanism are provided on the mounting frame. The position adjustment mechanism includes a sliding groove, a lead screw, a mounting block, and a mounting hole. The sliding groove is formed on the inner wall of the mounting frame, the lead screw is rotatably connected to the inner wall of the sliding groove, the mounting block is threadedly connected to the lead screw, and the mounting hole is formed on the mounting block. The heat dissipation mechanism includes a mounting bracket, screws, and a mini fan. The mounting bracket is mounted on the mounting frame by the screws, and the mini fan is fixedly mounted on the inner wall of the mounting bracket.

[0007] Preferably, there are several grooves, and the shape of each groove is a square through groove.

[0008] Preferably, the lead screw is horizontally positioned, and one end of the lead screw passes through the mounting frame and is fixedly mounted with a handle.

[0009] Preferably, the handle is in the shape of a circular plate and is vertically arranged.

[0010] Preferably, the side of the mounting frame is provided with a plurality of limiting grooves, all of which are square through grooves and are connected to the sliding groove.

[0011] Preferably, the mounting block is provided with a limiting slider on its side. The limiting slider is square in shape and slides on the inner wall of the limiting groove.

[0012] Preferably, the mounting frame is arched, and the mini fan is horizontally positioned.

[0013] Compared with the prior art, this utility model provides a second-order rigid-flex PCB, which has the following advantages: 1. This utility model, by providing a position adjustment mechanism, can adjust the position of the mounting hole according to the condition of the mounting surface, and with the help of bolts, facilitates the installation of the second-stage rigid-soft composite plate; 2. This utility model, by providing a heat dissipation mechanism, enhances the active heat dissipation function of the second-stage rigid-flex board, which is beneficial for the long-term use of the second-stage rigid-flex board.

[0014] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a two-stage rigid-flex plate proposed in this utility model; Figure 2 This is a schematic diagram of the rigid-flex plate body of a second-order rigid-flex plate proposed in this utility model; Figure 3 This is a schematic diagram of the mounting block for a two-stage rigid-flex plate proposed in this utility model; Figure 4 This is a schematic diagram of a heat dissipation mechanism for a two-stage rigid-flex plate proposed in this utility model.

[0016] In the diagram: 1. Mounting frame; 2. Position adjustment mechanism; 21. Slide groove; 22. Limiting groove; 23. Lead screw; 24. Mounting hole; 25. Mounting block; 26. Handle; 27. Limiting slider; 3. Heat dissipation mechanism; 31. Screw; 32. Mini fan; 33. Mounting bracket; 4. Flexible and rigid bonding board body. Detailed Implementation

[0017] 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.

[0018] Example: Please see Figure 1 - Figure 4 This embodiment of a second-order rigid-flex plate includes a mounting frame 1. The inner wall of the mounting frame 1 is provided with a rigid-flex plate body 4, which is the second-order rigid-flex plate. The mounting frame 1 is provided with a position adjustment mechanism 2 and a heat dissipation mechanism 3. The position adjustment mechanism 2 allows adjustment of the position of the mounting holes 24 according to the mounting surface, facilitating the installation of the second-order rigid-flex plate with the help of bolts. The heat dissipation mechanism 3 enhances the active heat dissipation function of the second-order rigid-flex plate, thus benefiting the second-order rigid-flex plate. For long-term use of the combined plate, the position adjustment mechanism 2 includes a slide 21, a lead screw 23, a mounting block 25, and a mounting hole 24. The slide 21 is opened on the inner wall of the mounting frame 1. The slide 21 is set to receive the installation of the lead screw 23. The lead screw 23 is rotatably connected to the inner wall of the slide 21. The lead screw 23 is set to drive the mounting block 25 to move. The mounting block 25 is threadedly connected to the lead screw 23. The mounting hole 24 is opened on the mounting block 25. The mounting hole 24 is set to cooperate with bolts to facilitate the installation of the second-stage soft and hard combined plate. The heat dissipation mechanism 3 includes a mounting bracket 33, screws 31, and a mini fan 32. The mounting bracket 33 is installed on the mounting frame 1 by screws 31. The mounting bracket 33 is used to support the installation of the mini fan 32. The screws 31 are used to install and remove the mounting bracket 33. The mini fan 32 is fixedly installed on the inner wall of the mounting bracket 33. When the second-stage rigid-flex board is working, the mini fan 32 plays the role of blowing air to dissipate heat from the second-stage rigid-flex board, which is beneficial to the long-term use of the second-stage rigid-flex board.

[0019] There are several grooves 21, and each groove 21 is a square through groove. The grooves 21 are designed to support the installation of the lead screw 23.

[0020] The lead screw 23 is set horizontally, and one end of the lead screw 23 passes through the mounting frame 1 and is fixedly installed with a handle 26. The handle 26 is set for rotating the lead screw 23.

[0021] The handle 26 is in the shape of a circular plate and is set vertically. The handle 26 is used to rotate the lead screw 23.

[0022] The mounting frame 1 has several limiting grooves 22 on its side. The limiting grooves 22 are all square through grooves. The limiting grooves 22 are connected to the sliding grooves 21. The limiting grooves 22 are designed to support the sliding of the limiting slider 27.

[0023] The mounting block 25 is provided with a limiting slider 27 on its side. The limiting slider 27 is square in shape and slides on the inner wall of the limiting groove 22. By providing the limiting groove 22 and the limiting slider 27, the mounting block 25 is limited in movement.

[0024] The mounting bracket 33 is an arched bracket, and the mini fan 32 is set horizontally. The mini fan 32 is set to blow air and dissipate heat from the second-stage rigid-flex board when it is working, which is beneficial to the long-term use of the second-stage rigid-flex board.

[0025] When installing the second-stage rigid-flex plate, the position of the mounting hole 24 can be adjusted according to the mounting surface. The operation is as follows: First, turn the handle 26. The handle 26 drives the lead screw 23 to rotate. When the lead screw 23 rotates, it will drive the mounting block 25 to move. When the mounting block 25 moves, it will move linearly due to the limiting action of the limiting slider 27 and the limiting groove 22. When the mounting block 25 moves linearly, it will drive the mounting hole 24 to move until the mounting hole 24 moves to the appropriate position. Then repeat the above operation to adjust the position of the remaining mounting holes 24. Then, use bolts to facilitate the installation of the second-stage rigid-flex plate.

[0026] When the second-stage rigid-flex board is working, the mini fan 32 is started. The mini fan 32 will blow air to cool the second-stage rigid-flex board, which is beneficial to the long-term use of the second-stage rigid-flex board. At the same time, screws 31 are provided for disassembling the heat dissipation mechanism 3 to facilitate the maintenance of the mini fan 32.

[0027] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. Any method that can achieve its beneficial effect can be implemented. In addition, the electrical components in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Those skilled in the art can control the electrical components through simple programming. Moreover, the existing disclosed power connection technology is also common knowledge in the field. Therefore, the specific structural composition and working principle will not be described in detail in this embodiment.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A second-order rigid-flex board, comprising a mounting frame (1), characterized in that: The inner wall of the mounting frame (1) is provided with a soft and hard bonding plate body (4), and the mounting frame (1) is provided with a position adjustment mechanism (2) and a heat dissipation mechanism (3). The position adjustment mechanism (2) includes a slide groove (21), a lead screw (23), a mounting block (25), and a mounting hole (24). The slide groove (21) is opened on the inner wall of the mounting frame (1). The lead screw (23) is rotatably connected to the inner wall of the slide groove (21). The mounting block (25) is threadedly connected to the lead screw (23). The mounting hole (24) is opened on the mounting block (25). The heat dissipation mechanism (3) includes a mounting bracket (33), screws (31) and a mini fan (32). The mounting bracket (33) is mounted on the mounting frame (1) by the screws (31), and the mini fan (32) is fixedly mounted on the inner wall of the mounting bracket (33).

2. A second order rigid-flex printed circuit board as claimed in claim 1, wherein: The number of grooves (21) is several, and the shape of several grooves (21) is a square through groove.

3. The second order rigid-flex printed circuit board of claim 1, wherein: The lead screw (23) is set horizontally, and one end of the lead screw (23) passes through the mounting frame (1) and is fixedly installed with a handle (26).

4. A second order rigid-flex printed circuit board as claimed in claim 3, wherein: The handle (26) is in the shape of a circular plate and is vertically arranged.

5. The second order rigid-flex printed circuit board of claim 1, wherein: The mounting frame (1) has several limiting grooves (22) on its side. The limiting grooves (22) are all square through grooves and are connected to the sliding groove (21).

6. A second order rigid-flex printed circuit board as claimed in claim 5, wherein: The mounting block (25) is provided with a limiting slider (27) on its side. The limiting slider (27) is a square block and slides on the inner wall of the limiting groove (22).

7. A second-order rigid-flex PCB according to claim 1, characterized in that: The mounting bracket (33) is arched, and the mini fan (32) is horizontally positioned.

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