Multi-layer circuit board capable of being flexibly disassembled

Abstract

A multi-layer circuit board capable of being flexibly disassembled comprises a mounting base, limiting rods, multiple groups of circuit board bodies and a fixing assembly, the limiting rods are vertically arranged on the left side and the right side of the mounting base, and the multiple groups of circuit board bodies are sequentially stacked on the mounting base from bottom to top and located between the limiting rods; the plurality of groups of fixing assemblies are respectively arranged in the corresponding circuit board bodies and are mutually clamped and limited with the limiting rods; the fixing assembly comprises a push rod, an elastic limiting plate, an inhaul cable and an auxiliary pulley. According to the utility model, the fixing assembly capable of movably limiting the circuit board body is designed, so that the multilayer circuit board can be flexibly disassembled into any board layer, and the maintenance operation of the multilayer circuit board is greatly facilitated; the upper cover plate and the positioning assembly are designed to limit and fix the upper part and the side part of the multilayer circuit board respectively, so that the multilayer circuit board formed by lamination is firmer and more reliable; the utility model has the advantages of strong practicability and strong popularization significance.

Description

Technical Field

[0001] The utility model relates to a circuit board, in particular to a multi-layer circuit board which can be flexibly split. Background Art

[0002] Circuit board, also known as printed circuit board or printed circuit board, PCB in English, is an important electronic component, a support for electronic components, and a carrier for electrical connection of electronic components. Before the emergence of circuit boards, the interconnection between electronic components was completed by direct connection of wires. Nowadays, wires are only used for experimental applications in laboratories, and circuit boards have occupied an absolute dominant position in the electronics industry.

[0003] As the functional requirements of circuit boards become more and more complex, single-layer circuit boards are increasingly unable to meet practical applications. For this reason, people have designed multi-layer circuit boards, which can achieve more and more complex functional circuit integration by stacking single-layer circuit boards. However, existing multi-layer circuit boards are usually pressed together. If the middle layer circuit board fails, it needs to be disassembled layer by layer for repair and replacement, which is very unfriendly to circuit board repair. Utility Model Content

[0004] Based on this, it is necessary to provide a multi-layer circuit board that can be flexibly disassembled to address the deficiencies in the prior art.

[0005] A multi-layer circuit board that can be flexibly disassembled comprises a mounting base, a limiting rod, a plurality of groups of circuit board bodies and a fixing assembly, wherein the limiting rod stands on the left and right sides of the mounting base, the plurality of groups of circuit board bodies are stacked on the mounting base from bottom to top and are located between the limiting rods, and the plurality of groups of fixing assemblies are respectively installed in the corresponding circuit board bodies and are mutually engaged and limited with the limiting rods. The fixing assembly comprises a push rod, an elastic limiting plate, a cable and an auxiliary pulley. The push rod is inserted into the circuit board body along the front-back direction, the elastic limiting plate is engaged and installed on the left and right sides of the circuit board body, and a limiting notch is provided at the outer end of the elastic limiting plate, the cable is inserted into the push rod in the left-right direction, and its two ends are respectively connected to the inner ends of the elastic limiting plates on the left and right sides, the auxiliary pulley is arranged in the circuit board body and is located on the left and right sides of the push rod, and the auxiliary pulley is in contact with the cable.

[0006] Furthermore, the push rod includes a rod body and an outer handle, the rod body is inserted into the circuit board body, and the outer handle is movably mounted on one end of the rod body and can be movably rotated to limit position.

[0007] Furthermore, the flexibly detachable multi-layer circuit board also includes an upper cover plate and a fixed sleeve. The upper cover plate is provided with holes on the left and right sides, and the upper cover plate can be passed through the holes to be passed through the limit rod and fit with the uppermost circuit board body, and the fixed sleeve is passed through the limit rod and limits the upper cover plate.

[0008] Furthermore, the flexibly detachable multi-layer circuit board also includes a positioning assembly, and the positioning assembly includes two groups of front positioning posts and rear positioning posts. The two groups of front positioning posts stand on the front side of the mounting base and limit the left and right sides of the circuit board body, and the two groups of rear positioning posts stand on the rear side of the mounting base and limit the left and right sides and the rear side of the circuit board body.

[0009] Furthermore, the flexibly detachable multi-layer circuit board also includes a packaging shell, which is designed to be open at the bottom, and is covered on the mounting base and accommodates multiple sets of circuit board bodies inside. The side of the packaging shell is also provided with a plurality of heat dissipation long holes, and the heat dissipation long holes are designed to be inclined downward from the inside to the outside.

[0010] To sum up, the beneficial effects of the flexibly disassembled multi-layer circuit board of the utility model are: by designing a fixing component that can limit the movable position of the circuit board body, the multi-layer circuit board can be flexibly disassembled into any board layer, which greatly facilitates the maintenance operation of the multi-layer circuit board; the upper cover plate and the positioning component are designed to limit and fix the top and sides of the multi-layer circuit board respectively, so that the stacked multi-layer circuit board is more firm and reliable; the circuit board body is housed in the packaging shell, so that it can get better waterproof and dustproof protection, and the heat dissipation long holes on the packaging shell can reduce the obstruction of the shell to the heat dissipation of the circuit board; the utility model is highly practical and has a strong promotional significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of a multi-layer circuit board that can be flexibly disassembled according to the utility model;

[0012] Figure 2 for Figure 1 Schematic diagram of the decomposition structure;

[0013] Figure 3 for Figure 2 Schematic diagram of the exploded structure of the fixed components;

[0014] Figure 4 for Figure 2 Structural schematic diagram of the middle and upper cover plate;

[0015] Figure 5 for Figure 2 Schematic diagram of the structure of the package shell. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0017] like Figures 1 to 5 As shown, the utility model provides a flexibly disassembled multi-layer circuit board 100, which includes a mounting base 10, a limiting rod 20, a plurality of circuit board bodies 30 and a fixing assembly 40, wherein the limiting rod 20 stands on the left and right sides of the mounting base 10, and the plurality of circuit board bodies 30 are stacked on the mounting base 10 from bottom to top and are located between the limiting rods 20, and the plurality of fixing assemblies 40 are respectively installed in the corresponding circuit board bodies 30 and are mutually engaged and limited with the limiting rods 20.

[0018] The fixing assembly 40 includes a push rod 41, an elastic limiting plate 42, a cable 43 and an auxiliary pulley 44. The push rod 41 is inserted into the circuit board body 30 along the front-back direction, the elastic limiting plate 42 is clamped and installed on the left and right sides of the circuit board body 30, and the outer end of the elastic limiting plate 42 is provided with a limiting notch 421, the cable 43 is inserted into the push rod 41 in the left-right direction, and its two ends are respectively connected to the inner ends of the elastic limiting plates 42 on the left and right sides, and the auxiliary pulley 44 is arranged in the circuit board body 30 and located on the left and right sides of the push rod 41, and the auxiliary pulley 44 is in contact with the cable 43.

[0019] When it is necessary to remove a certain layer of the circuit board body 30 on the multi-layer circuit board, it is only necessary to push the push rod 41 on the corresponding board layer. Driven by the push rod 41, the pull cable 43 will pull the elastic limit plates 42 on both sides to retract into the circuit board body 30, thereby releasing the limit lock between the circuit board body 30 and the limit rod 20. Finally, it is only necessary to pull the unlocked circuit board body 30 out from between the multi-layer boards.

[0020] Specifically, in this embodiment, the push rod 41 includes a rod body 411 and an outer handle 412. The rod body 411 is inserted into the circuit board body 30, and the outer handle 412 is movably mounted on one end of the rod body 411 and can be rotatably limited. The rotatably limited outer handle 412 can lock the push rod 41 so that it cannot be pushed, thereby avoiding the risk of accidentally touching the push rod 41 and releasing the limit lock of the circuit board body 30.

[0021] The flexibly detachable multi-layer circuit board 100 further includes an upper cover plate 50 and a fixed sleeve 60. The upper cover plate 50 is provided with through holes 51 on both sides thereof. The upper cover plate 50 can be passed through the through holes 51 on the limit rod 20 and fit with the uppermost circuit board body 30. The fixed sleeve 60 is passed through the limit rod 20 and limits the upper cover plate 50. The upper cover plate 50 and the fixed sleeve 60 limit and lock the upper part of the circuit board body 30, which can prevent the problem of the board layers loosening and sliding out when the multi-layer circuit board is tilted.

[0022] The flexibly detachable multi-layer circuit board 100 further includes a positioning assembly 70, and the positioning assembly 70 includes two groups of front positioning columns 71 and rear positioning columns 72. The two groups of front positioning columns 71 stand on the front side of the mounting base 10 and limit the left and right sides of the circuit board body 30, and the two groups of rear positioning columns 72 stand on the rear side of the mounting base 10 and limit the left and right sides and the rear side of the circuit board body 30. The front and rear positioning columns 72 can limit the sides and rear of the circuit board body 30 to prevent the assembled multi-layer circuit board from shaking horizontally, causing the problem of up and down deviation between the board layers.

[0023] The flexibly detachable multi-layer circuit board 100 further includes a packaging shell 80, which is designed to be open at the lower end, and is covered on the mounting base 10 and contains multiple sets of circuit board bodies 30 inside. The side of the packaging shell 80 is also provided with a plurality of heat dissipation long holes 81, and the heat dissipation long holes 81 are designed to be inclined downward from the inside to the outside. The packaging shell 80 covered outside the circuit board body 30 can effectively prevent external water vapor, dust, etc. from entering the inside of the circuit board to affect its normal operation, and the heat dissipation long holes 81 on the packaging shell 80 can effectively improve the heat exchange efficiency between the inside of the circuit board and the outside.

[0024] In summary, the beneficial effects of the flexibly disassembled multi-layer circuit board 100 of the utility model are: by designing a fixing component 40 that can flexibly limit the circuit board body 30, the multi-layer circuit board can be flexibly disassembled into any board layer, which greatly facilitates the maintenance operation of the multi-layer circuit board; the upper cover plate 50 and the positioning component 70 are designed to limit and fix the top and side of the multi-layer circuit board respectively, so that the stacked multi-layer circuit board is more firm and reliable; the circuit board body 30 is accommodated in the packaging shell 80, so that it can be better protected against water and dust, and the heat dissipation long hole 81 on the packaging shell 80 can reduce the obstruction of the shell to the heat dissipation of the circuit board; the utility model is highly practical and has a strong promotional significance.

[0025] The above-mentioned embodiment only expresses one implementation method of the utility model, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A multi-layer circuit board that can be flexibly split, characterized in that: It includes a mounting base, a limit rod, multiple groups of circuit board bodies and fixing components, the limit rods stand on the left and right sides of the mounting base, the multiple groups of circuit board bodies are stacked on the mounting base from bottom to top and are located between the limit rods, and the multiple groups of fixing components are respectively installed in the corresponding circuit board bodies and are engaged with the limit rods for limiting each other; the fixing component includes a push rod, an elastic limit plate, a cable and an auxiliary pulley; the push rod is penetrated in the circuit board body along the front-back direction, the elastic limit plate is engaged and installed on the left and right sides of the circuit board body, and the outer end of the elastic limit plate is provided with a limiting notch, the cable is penetrated on the push rod in the left and right directions, and its two ends are respectively connected with the inner ends of the elastic limit plates on the left and right sides, the auxiliary pulley is arranged in the circuit board body and located on the left and right sides of the push rod, and the auxiliary pulley is in contact with the cable.

2. The flexibly detachable multi-layer circuit board according to claim 1, characterized in that: The push rod comprises a rod body and an outer handle. The rod body is inserted into the circuit board body. The outer handle is movably mounted on one end of the rod body and can be movably rotated to limit position.

3. The flexibly detachable multi-layer circuit board according to claim 1, characterized in that: It also includes an upper cover plate and a fixed shaft sleeve; the upper cover plate is provided with through holes on the left and right sides, and the upper cover plate can be passed through the through holes on the limiting rod and fit with the uppermost circuit board body, and the fixed shaft sleeve is passed through the limiting rod and limits the upper cover plate.

4. The flexibly detachable multi-layer circuit board according to claim 1, characterized in that: It also includes a positioning component, which includes two groups of front positioning columns and rear positioning columns; the two groups of front positioning columns stand on the front side of the mounting base and limit the left and right sides of the circuit board body, and the two groups of rear positioning columns stand on the rear side of the mounting base and limit the left and right sides and the rear side of the circuit board body.

5. The flexibly detachable multi-layer circuit board according to claim 1, characterized in that: It also includes a packaging shell, which is designed to be open at the lower end, and its cover is arranged on the mounting base and multiple sets of circuit board bodies are accommodated inside; the side of the packaging shell is also provided with a plurality of heat dissipation long holes, and the heat dissipation long holes are designed to be inclined downward from the inside to the outside.

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