Anti-drop circuit board structure

Abstract

The utility model relates to a circuit board technical field, especially a kind of anti-falling circuit board structure.The utility model has the advantages that: by the first frame body and the second frame body are fixed by being buckled up and down, the circuit board body four sides are pressed and hold to the inclined plane between the upper and lower back-shaped rubber buffer pad, when being subjected to vertical impact, it can effectively isolate vibration by the upper and lower back-shaped rubber buffer pad, buffer kinetic energy, when being subjected to the impact in horizontal plane direction, it can be pushed into the inclined plane opening inside of the upper and lower back-shaped rubber buffer pad by the silicone edge, by extruding inclined plane opening, provide buffer space, by back-shaped rubber buffer pad and silicone edge absorption impact force, by the plug-in post and the slot, when installing, the first fixed lug and the second fixed lug are buckled up and down first, preliminary fixation is facilitated, circuit board body is pre-clamped and fixed, then installation is completed by installing bolt passing through mounting hole, reach the purpose that it is convenient to assemble, simultaneously, circuit board body is replaced separately conveniently.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, and in particular to a shockproof circuit board structure. Background Technology

[0002] With the miniaturization and portability of electronic devices, printed circuit boards (PCBs), as the core carriers, need to withstand more complex physical stress environments. Statistics show that PCB failures due to drops account for 37% of all failures in portable electronic devices. Therefore, drop-proof design is crucial for improving PCB lifespan. However, current drop-proof PCB structures often rely on adding buffer springs to the fastening bolts to cushion movement and achieve drop protection. This design only buffers impacts along the bolt direction; it is ineffective against impacts from other directions. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a shockproof circuit board structure, which effectively solves the deficiencies of the prior art.

[0004] To achieve the above objectives, one embodiment of this utility model provides a drop-proof circuit board structure, including a first frame and a second frame. The first frame and the second frame are of the same size and are fixedly fastened together. A first fixing ear and a second fixing ear are fixedly connected to the four corners of the first frame and the second frame, respectively. The first fixing ear and the second fixing ear on the first frame and the second frame correspond to each other. A U-shaped rubber buffer pad is fixedly connected to the corresponding inner walls of the first frame and the second frame. The inner edges of the upper and lower U-shaped rubber buffer pads facing each other on the same side are provided with inclined surfaces. The cross-sections of the upper and lower inclined surfaces are arranged symmetrically in a figure-eight shape. A circuit board is provided between the inner walls of the first frame and the second frame. The four sides of the circuit board are wrapped and fixedly connected with cylindrical silicone edging. The silicone edging of the circuit board is pressed against the inclined surfaces of the upper and lower U-shaped rubber buffer pads facing each other on the same side.

[0005] Preferably, in any of the above solutions, a slot is provided at the center of the corresponding side of the first fixing ear and the second fixing ear, and a plug is fixedly connected at the center of the corresponding side of the second fixing ear and the first fixing ear. A mounting hole is provided at the center of both the first fixing ear and the second fixing ear, and the mounting hole passes through the center of the plug and the slot.

[0006] The technical effect achieved by adopting the above solution is that the installation can be completed by inserting mounting bolts into the mounting holes, which facilitates assembly and makes it easy to replace the circuit board body individually.

[0007] Preferably, in any of the above embodiments, the dimensions of the outer wall of the plug-in post are adapted to the dimensions of the inner wall of the slot, the position of the plug-in post corresponds to the position of the slot, and the plug-in post and the inner wall of the slot are interference fit.

[0008] The technical effect achieved by adopting the above solution is that the first fixing ear and the second fixing ear can be pre-fixed by snapping together, which facilitates the pre-clamping and fixing of the circuit board body.

[0009] Preferably, in any of the above solutions, the dimensions of the inner sides of the first frame and the second frame are smaller than the dimensions of the surface of the circuit board, and the differences in width and length between the circuit board, the first frame, and the second frame are equal.

[0010] The technical effect achieved by adopting the above solution is that when the circuit board is centered, the distances from the first frame and the inner wall of the second frame are equal, so that the buffer space around the board is the same.

[0011] Preferably, when the circuit board body is located between the first frame and the second frame, the silicone edging is at the outermost edge of the slope, and the thickness of the first frame and the second frame are equal to the thickness of the first fixing ear and the second fixing ear, respectively.

[0012] The technical effect achieved by adopting the above solution is that, by using this solution, after the first fixing ear and the second fixing ear are fastened together, the first frame and the second frame are also tightly fitted together.

[0013] This utility model has the following advantages:

[0014] 1. The anti-drop circuit board structure is fixed by the upper and lower frames of the first frame and the second frame, which can press the four sides of the circuit board between the inclined surfaces of the upper and lower U-shaped rubber buffer pads. In this way, when subjected to vertical impact, the upper and lower U-shaped rubber buffer pads can effectively isolate vibration and buffer kinetic energy. When subjected to horizontal impact, the silicone edge can be pushed to one side into the inclined opening of the upper and lower U-shaped rubber buffer pads. By squeezing the inclined surface open, a buffer space is provided. At the same time, the U-shaped rubber buffer pads and silicone edge absorb the impact force.

[0015] 2. The anti-drop circuit board structure, through the plug-in post and slot, allows the first fixing ear and the second fixing ear to be pre-fixed by interlocking at the top and bottom during installation, which facilitates the pre-clamping and fixing of the circuit board body. Then, the installation is completed by inserting the mounting bolts through the mounting holes, which facilitates the assembly purpose and also makes it easy to replace the circuit board body individually. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 3 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA.

[0019] In the diagram: 1-First frame, 2-Second frame, 3-First fixing ear, 4-Second fixing ear, 5-Circuit board body, 6-Rubber buffer pad, 7-Bevel, 8-Silicone edging, 9-Slot, 10-Plug-in post, 11-Mounting hole. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0021] like Figures 1 to 3 As shown, a shockproof circuit board structure includes a first frame 1 and a second frame 2. The first frame 1 and the second frame 2 are the same size and are fixed together by snapping on top of each other. The four corners of the first frame 1 and the second frame 2 are respectively fixedly connected with a first fixing ear 3 and a second fixing ear 4. The first fixing ear 3 and the second fixing ear 4 on the first frame 1 and the second frame 2 correspond to each other. The inner walls of the corresponding parts of the first frame 1 and the second frame 2 are fixedly connected with U-shaped rubber buffer pads 6. The inner edges of the upper and lower U-shaped rubber buffer pads 6 facing each other on the same side are provided with bevels 7. The upper and lower bevels 7 are symmetrically arranged in a figure-eight shape. A circuit board body 5 is provided between the inner walls of the first frame 1 and the second frame 2. The four sides of the circuit board body 5 are wrapped and fixedly connected with cylindrical silicone edging 8. The silicone edging 8 of the circuit board body 5 is pressed tightly between the bevels 7 of the upper and lower U-shaped rubber buffer pads 6 facing each other on the same side.

[0022] As an optional technical solution of this utility model, a slot 9 is provided at the center of the corresponding side of the first fixing ear 3 and the second fixing ear 4, and a plug-in post 10 is fixedly connected at the center of the corresponding side of the second fixing ear 4 and the first fixing ear 3. A mounting hole 11 is provided at the center of both the first fixing ear 3 and the second fixing ear 4. The mounting hole 11 passes through the center of the plug-in post 10 and the slot 9. The mounting is completed by inserting the mounting bolt into the mounting hole 11, which facilitates assembly and makes it convenient to replace the circuit board body 5 separately.

[0023] As an optional technical solution of this utility model, the size of the outer wall of the plug post 10 is adapted to the size of the inner wall of the slot 9, the position of the plug post 10 corresponds to the position of the slot 9, the plug post 10 and the inner wall of the slot 9 adopt an interference fit, and through the plug post 10 and the slot 9, the first fixing ear 3 and the second fixing ear 4 can be pre-fixed by snapping together, which facilitates the pre-clamping and fixing of the circuit board body 5.

[0024] As an optional technical solution of this utility model, the dimensions of the inner sides of the first frame 1 and the second frame 2 are smaller than the dimensions of the surface of the circuit board 5. The difference in width and length between the circuit board 5, the first frame 1, and the second frame 2 are equal, so that when the circuit board 5 is centered, the distances from the inner walls of the first frame 1 and the second frame 2 are equal, and the buffer space around the circuit board 5 is the same.

[0025] As an optional technical solution of this utility model, when the circuit board body 5 is located in the middle position between the first frame 1 and the second frame 2, the silicone edging 8 is located at the outermost edge of the inclined surface 7. The thickness of the first frame 1 and the second frame 2 is equal to the thickness of the first fixing ear 3 and the second fixing ear 4, so that after the first fixing ear 3 and the second fixing ear 4 are fastened together, the first frame 1 and the second frame 2 are also tightly fitted together.

[0026] This shockproof circuit board structure requires the following steps for use:

[0027] 1) By fastening the first frame 1 and the second frame 2 together, the four sides of the circuit board 5 can be pressed between the inclined surfaces 7 of the two upper and lower U-shaped rubber buffer pads 6.

[0028] 2) By using the plug-in post 10 and the slot 9, the first fixing ear 3 and the second fixing ear 4 can be pre-fixed by snapping together vertically during installation, and the circuit board body 5 can be pre-clamped and fixed.

[0029] 3) Then, insert the mounting bolts through the mounting holes 11 and tighten them onto the equipment housing;

[0030] 4) When subjected to vertical impact, the upper and lower U-shaped rubber buffer pads 6 can effectively isolate vibration and buffer kinetic energy. When subjected to horizontal impact, the silicone edge 8 can be pushed to one side into the opening of the inclined surface 7 of the upper and lower U-shaped rubber buffer pads 6. By squeezing the inclined surface 7 open, buffer space is provided. At the same time, the U-shaped rubber buffer pads 6 and the silicone edge 8 absorb the impact force.

[0031] In summary, by fastening the first frame 1 and the second frame 2 together, the four sides of the circuit board 5 can be pressed between the inclined surfaces 7 of the two U-shaped rubber buffer pads 6. In this way, when subjected to vertical impact, the U-shaped rubber buffer pads 6 can effectively isolate vibration and buffer kinetic energy. When subjected to horizontal impact, the silicone edging 8 can be pushed to one side into the opening of the inclined surface 7 of the U-shaped rubber buffer pads 6. By squeezing the inclined surface 7 open, a buffer space is provided. At the same time, the U-shaped rubber buffer pads 6 and the silicone edging 8 absorb the impact force. Through the plug-in post 10 and the slot 9, the first fixing ear 3 and the second fixing ear 4 can be fastened together first during installation to pre-clamp and fix the circuit board 5. Then, the mounting bolts are inserted into the mounting holes 11 to complete the installation, which facilitates assembly and also makes it easy to replace the circuit board 5 individually.

[0032] 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 shockproof circuit board structure, characterized in that: Includes a first frame (1) and a second frame (2), the first frame (1) and the second frame (2) are the same size, the first frame (1) and the second frame (2) are fastened together vertically, the four corners of the first frame (1) and the second frame (2) are respectively fixedly connected with a first fixing ear (3) and a second fixing ear (4), the first fixing ear (3) and the second fixing ear (4) on the first frame (1) and the second frame (2) correspond to each other, and the corresponding inner walls of the first frame (1) and the second frame (2) are fixedly connected with U-shaped rubber buffers. The upper and lower ring-shaped rubber buffer pads (6) have inclined surfaces (7) on their inner edges facing each other on one side. The cross-sections of the upper and lower inclined surfaces (7) are arranged in a figure-eight symmetrical manner. A circuit board (5) is provided between the inner walls of the first frame (1) and the second frame (2). The four sides of the circuit board (5) are wrapped and fixedly connected with cylindrical silicone edging (8). The silicone edging (8) of the circuit board (5) is pressed against the inclined surfaces (7) facing each other on one side of the upper and lower ring-shaped rubber buffer pads (6).

2. The anti-drop circuit board structure according to claim 1, characterized in that: A slot (9) is provided at the center of one side of the first fixing ear (3) and the second fixing ear (4). A plug-in post (10) is fixedly connected at the center of one side of the second fixing ear (4) and the first fixing ear (3). An installation hole (11) is provided at the center of both the first fixing ear (3) and the second fixing ear (4). The installation hole (11) passes through the center of the plug-in post (10) and the slot (9).

3. The anti-drop circuit board structure according to claim 2, characterized in that: The dimensions of the outer wall of the plug (10) are adapted to the dimensions of the inner wall of the slot (9), the position of the plug (10) corresponds to the position of the slot (9), and the plug (10) and the inner wall of the slot (9) are interference fit.

4. The anti-drop circuit board structure according to claim 3, characterized in that: The dimensions of the inner sides of the first frame (1) and the second frame (2) are smaller than the dimensions of the surface of the circuit board (5). The difference in width and the difference in length between the circuit board (5), the first frame (1), and the second frame (2) are equal.

5. The anti-drop circuit board structure according to claim 4, characterized in that: When the circuit board body (5) is located in the middle position between the first frame (1) and the second frame (2), the silicone edging (8) is located at the outermost edge of the inclined surface (7). The thickness of the first frame (1) and the second frame (2) is equal to the thickness of the first fixing ear (3) and the second fixing ear (4).

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