Multilayer circuit board

Abstract

The utility model discloses a multilayer circuit board, comprising a plurality of mounting racks which are sequentially stacked from top to bottom, each mounting rack is provided with a circuit board body, the mounting racks are arranged in a [shape, two opposite inner walls of the mounting racks are provided with slots, and the circuit board bodies are inserted in the slots. Locking mechanisms used for fixing the circuit board body on the mounting frames are arranged on the mounting frames, and every two adjacent mounting frames are detachably connected through an assembling mechanism; according to the utility model, the circuit board body is supported by arranging the mounting rack which is designed in the shape of the right-angled n, so that the circuit board body is not stressed and is prevented from being damaged when the circuit board body is moved, and the circuit board body can be quickly disassembled and assembled through the locking mechanism arranged on the mounting rack; moreover, the circuit board body of any layer can be directly detached according to the needs, and the operation is convenient and rapid.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a multi-layer circuit board. Background Art

[0002] A Chinese patent with announcement number CN219999684U discloses a multi-layer circuit board, including a plurality of circuit board modules arranged in a stacked manner, wherein the circuit board module includes a circuit board body and a first mounting seat and a second mounting seat fixed at both ends of the circuit board body, and the first mounting seat located at the end of the lower circuit board module between adjacent circuit board modules is hinged to the second mounting seat at the end of the upper circuit board module through a hinge, and the second mounting seat located at the end of the lower circuit board module between adjacent circuit board modules is snap-connected to the second mounting seat at the end of the upper circuit board module. The multi-layer circuit board is convenient for centralized maintenance and testing, and the two ends of adjacent circuit board modules are connected to each other, which is relatively stable and avoids damage to the circuit board body.

[0003] However, the above-mentioned multi-layer circuit board adopts the clamping method of the first mounting seat and the second mounting seat to fix the circuit board. When the circuit board is turned over, the circuit board also needs to withstand pressure, which poses certain safety hazards. In addition, the circuit board is connected to the first mounting seat and the second mounting seat by screws, which is not convenient for subsequent disassembly and assembly of the circuit board. At the same time, when the multi-layer circuit board is running at the same time, a large amount of heat will be generated, and the above-mentioned multi-layer circuit board is not provided with corresponding active heat dissipation facilities, and the heat dissipation effect needs to be improved.

[0004] To this end, we propose a multi-layer circuit board. Utility Model Content

[0005] The purpose of the utility model is to provide a multi-layer circuit board, so as to solve or at least alleviate one or more of the above-mentioned problems and other problems existing in the prior art.

[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0007] A multi-layer circuit board comprises a plurality of mounting frames stacked in sequence from top to bottom, each of the mounting frames being provided with a circuit board body, the mounting frames being arranged in a V-shape, two opposite inner walls of the mounting frames being provided with slots, the circuit board body being inserted into the slots, the mounting frames being provided with locking mechanisms for fixing the circuit board body on the mounting frames, and two adjacent mounting frames being detachably connected via an assembling mechanism.

[0008] In a multilayer circuit board according to the utility model, the locking mechanism includes a limiting pressure plate, an end of the mounting frame away from its opening direction is provided with a mounting groove, the mounting groove is connected with the slot, the limiting pressure plate is rotatably installed inside the mounting groove through a mounting shaft, a torsion spring is sleeved on the mounting shaft, a clamp is formed at the lower end of the limiting pressure plate, a limiting hole is provided at one end of the circuit board body, and the clamp can be inserted into the limiting hole under the elastic force of the torsion spring.

[0009] In a multi-layer circuit board according to the utility model, an assembly groove communicating with the bottom of the slot is provided inside the mounting frame, and a plurality of cylindrical balls are rotatably mounted in the assembly groove.

[0010] In a multilayer circuit board according to the utility model, the interior of one of the connecting arms of the mounting frame is hollow, and a plurality of air injection holes are equidistantly provided on the inner side of the hollow connecting arm of the mounting frame.

[0011] In a multi-layer circuit board according to the utility model, one end of the hollow connecting arm on the mounting frame is connected to an air inlet nozzle, and the air inlet nozzle is connected to an external air source through a pipeline.

[0012] In a multilayer circuit board according to the utility model, two adjacent circuit board bodies are electrically connected via connecting wires.

[0013] In a multilayer circuit board according to the utility model, a vent hole is provided on a connecting arm of the mounting frame away from the air injection hole.

[0014] The top of the spring is provided with a spring, and the top of the spring is against the inner top of the knob cylinder, and the bottom of the spring is pressed against the top of the block, and a vertical cut is provided on the top of the lower connecting rod, and the surface of the lower connecting rod is provided with an arc slide connected with the bottom of the vertical cut, and a limit block connected with the top of the arc slide is provided on the surface of the lower connecting rod, and the inner wall of the lower connecting rod is fixedly connected with the limit block, and after the limit block slides into the interior of the arc slide from the vertical cut, it rotates to the limit notch, and can be stuck in the limit block under the elastic force of the spring.

[0015] In a multilayer circuit board according to the utility model, the outer diameter of the lower connecting column is equal to the inner diameter of the knob tube.

[0016] In a multi-layer circuit board according to the present utility model, anti-slip patterns are provided on the outer wall of the knob cylinder.

[0017] The present utility model at least has the following beneficial effects:

[0018] The present utility model supports the circuit board body by providing a mounting bracket designed in a U-shape. When moving the circuit board body, the circuit board body will not be stressed, avoiding damage to the circuit board body. The locking mechanism provided on the mounting bracket can quickly disassemble and assemble the circuit board body, and any layer of the circuit board body can be directly disassembled as needed, with convenient and fast operation.

[0019] By providing air injection holes, ventilation holes, and air inlets, when in use, an external air source is connected to the air inlets through a pipeline, and thus the heat generated during the operation of the circuit board body can be blown away in time to ensure the normal operation of the circuit board body.

[0020] The quick disassembly and assembly between the mounting brackets are facilitated by the provided assembly mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present application, form a part of the present application, and the illustrative embodiments and descriptions thereof are used to explain the present application without unduly limiting the present application. In the drawings:

[0022] Figure 1 is a schematic structural diagram of the multi-layer circuit board of the present utility model;

[0023] Figure 2 is a schematic structural diagram of another perspective of the multi-layer circuit board of the present utility model;

[0024] Figure 3 is a schematic structural diagram of the mounting bracket of the present utility model;

[0025] Figure 4 is Figure 3 the enlarged structural diagram of part A in

[0026] Figure 5 is a partial cross-sectional structural diagram of the multi-layer circuit board of the present utility model;

[0027] Figure 6 is Figure 5 the enlarged structural diagram of part B in

[0028] Figure 7 is a schematic structural diagram of the circuit board of the present utility model;

[0029] Figure 8 is an exploded structural diagram of the splicing mechanism of the present utility model;

[0030] Fig. 9 This is a schematic structural diagram of the knob cylinder of the present utility model.

[0031] Explanation of the reference numerals in the attached drawings:

[0032] 1. Circuit board body; 101. Limit hole;

[0033] 2. Mounting bracket; 201. Air jet hole; 202. Vent hole; 203. Air inlet nozzle; 204. Mounting groove; 205. Slot;

[0034] 3. Connecting wire;

[0035] 4. Locking mechanism; 401. Limit pressing plate; 402. Torsion spring;

[0036] 5. Cylindrical ball;

[0037] 6. Assembly mechanism; 601. Upper connecting column; 602. Knob cylinder; 603. Lower connecting column; 604. Spring; 605. Stopper; 606. Vertical incision; 607. Arc-shaped slideway; 608. Limit notch; 609. Limit block. Specific implementation mode

[0038] The following will be combined with the drawings and embodiments to detail the implementation mode of the present application, so as to fully understand how the present application uses technical means to solve technical problems and achieve the realization process of technical effects and implement accordingly.

[0039] Please refer to Figures 1 to 9 As shown, the embodiment of the present utility model provides a multi-layer circuit board, including a plurality of mounting brackets 2 stacked in sequence from top to bottom. Each mounting bracket 2 is provided with a circuit board body 1. Adjacent two circuit board bodies 1 are electrically connected through a connecting wire 3. The mounting bracket 2 is arranged in a U shape. Slots 205 are opened on the two opposite inner walls of the mounting bracket 2. The circuit board body 1 is inserted into the slots 205. A locking mechanism 4 for fixing the circuit board body 1 on the mounting bracket 2 is arranged on the mounting bracket 2. In this embodiment, the locking mechanism 4 includes a limit pressing plate 401. An installation groove 204 is opened at one end of the mounting bracket 2 away from its opening direction. The installation groove 204 is communicated with the slot 205. The limit pressing plate 401 is rotatably installed in the installation groove 204 through a mounting shaft. A torsion spring 402 is sleeved on the mounting shaft. A clamping head is formed at the lower end of the limit pressing plate 401. A limit hole 101 is opened at one end of the circuit board body 1. The clamping head can be inserted into the limit hole 101 under the elastic force of the torsion spring 402.

[0040] By adopting the above technical solution, when installing the circuit board body 1, first insert the circuit board body 1 into the slot 205 of the mounting frame 2, and then press one end of the limiting pressure plate 401 downward to lift the clamping head, and then continue to insert the circuit board body 1 into the slot 205. When the limiting hole 101 reaches below the clamping head, release the limiting pressure plate 401, and the clamping head is clamped into the limiting hole 101 under the elastic force of the torsion spring 402. At this point, the installation of the circuit board body 1 is completed. When disassembling, press one end of the limiting pressure plate 401 downward to lift the clamping head, and then the circuit board body 1 can be pulled out of the mounting frame 2. The whole process is convenient and quick to operate.

[0041] Specifically, in order to improve the smoothness of the circuit board body 1 when being pulled out in the slot 205, an assembly slot communicating with the bottom of the slot 205 is provided inside the mounting frame 2, and a plurality of cylindrical balls 5 are rotatably mounted in the assembly slot.

[0042] Specifically, in order to improve the heat dissipation effect of the circuit board body 1, the interior of one of the connecting arms of the mounting frame 2 is hollow, and a plurality of air injection holes 201 are equidistantly provided on the inner side of the hollow connecting arm of the mounting frame 2. One end of the hollow connecting arm of the mounting frame 2 is connected to an air inlet nozzle 203, and the air inlet nozzle 203 is connected to an external air source through a pipeline. In order to improve the efficiency of heat dissipation, an air vent 202 is provided on the connecting arm of the mounting frame 2 away from the air injection hole 201.

[0043] By adopting the above technical solution, when in use, the external air source is connected to the air inlet nozzle 203 through a pipeline, so that the heat generated by the circuit board body 1 during operation can be blown away in time to ensure the normal operation of the circuit board body 1.

[0044] In this embodiment, two adjacent mounting frames 2 are detachably connected via an assembling mechanism 6, wherein the assembling mechanism 6 comprises an upper connecting column 601 fixed to the bottom of the mounting frame 2 and a lower connecting column 603 fixed to the top of the mounting frame 2, a knob tube 602 is slidably sleeved on the upper connecting column 601, the knob tube 602 opening is downwardly arranged, a stopper 605 is fixedly connected to the bottom of the upper connecting column 601, a spring 604 is sleeved on the upper connecting column 601, the top of the spring 604 is against the inner top of the knob tube 602, the bottom of the spring 604 is pressed against the top of the stopper 605, and the lower connecting column 603 is A vertical cutout 606 is provided on the top, and an arc-shaped slide 607 connected to the bottom of the vertical cutout 606 is provided on the surface of the lower connecting column 603. A limit block 609 connected to the top of the arc-shaped slide 607 is provided on the lower connecting column 603. The limit block 609 is fixedly connected to the inner wall of the lower end of the knob tube 602. After the limit block 609 slides from the vertical cutout 606 into the arc-shaped slide 607, it rotates to the limit notch 608 and can be stuck in the limit block 609 under the elastic force of the spring 604. In order to prevent slipping of the hand when holding the knob tube 602, an anti-slip texture is provided on the surface of the knob tube 602.

[0045] By adopting the above technical solution, after two adjacent mounting frames 2 are installed, the knob tube 602 at the bottom of the upper mounting frame 2 is aligned with the lower connecting column 603 at the top of the lower mounting frame 2, and then the upper mounting frame 2 is moved downward so that the knob tube 602 is sleeved on the lower connecting column 603. At this time, the bottom of the stopper 605 is pressed on the top of 603, and then the knob tube 602 is pulled downward so that the limit block 609 is inserted into the vertical cutout 606. Then the knob tube 602 is rotated so that the limit block 609 moves along the limit notch 608 toward the limit block 609. When the knob tube 602 cannot rotate, the knob tube 602 is released. At this time, the limit block 609 is stuck in the limit block 609 under the elastic force of the spring 604, and the splicing between the two adjacent mounting frames 2 is completed.

[0046] Specifically, the outer diameter of the lower connecting column 603 is equal to the inner diameter of the knob tube 602 . This arrangement prevents the limiting block 609 from being separated from the limiting notch 608 .

[0047] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A multi-layer circuit board, characterized in that: It includes a number of mounting brackets (2) stacked in sequence from top to bottom. A circuit board body (1) is provided on each mounting bracket (2). The mounting bracket (2) is arranged in a U-shape. Slots (205) are formed on two opposite inner walls of the mounting bracket (2). The circuit board body (1) is inserted into the slots (205). A locking mechanism (4) is provided on the mounting bracket (2) for fixing the circuit board body (1) on the mounting bracket (2). Adjacent two mounting brackets (2) are detachably connected through an assembling mechanism (6).

2. A multi-layer circuit board according to claim 1, characterized in that: The locking mechanism (4) includes a limiting pressing plate (401). An installation groove (204) is formed at one end of the mounting bracket (2) away from its opening direction. The installation groove (204) communicates with the slot (205). The limiting pressing plate (401) is rotatably installed in the installation groove (204) through an installation shaft. A torsion spring (402) is sleeved on the installation shaft. A clamping head is formed at the lower end of the limiting pressing plate (401). A limiting hole (101) is formed at one end of the circuit board body (1). The clamping head can be inserted into the limiting hole (101) under the elastic force of the torsion spring (402).

3. A multi-layer circuit board according to claim 2, characterized in that: An assembly groove communicating with the bottom of the slot (205) is formed inside the mounting bracket (2). A number of cylindrical balls (5) are rotatably installed in the assembly groove.

4. A multi-layer circuit board according to claim 3, characterized in that: One of the connecting arms of the mounting bracket (2) is hollow inside. A number of air spraying holes (201) are equidistantly formed on the inner side of the hollow connecting arm of the mounting bracket (2).

5. A multi-layer circuit board according to claim 4, characterized in that: One end of the hollow connecting arm of the mounting bracket (2) is communicated with an air inlet nozzle (203). The air inlet nozzle (203) is communicated with an external air source through a pipeline.

6. A multi-layer circuit board according to claim 1, characterized in that: Adjacent two circuit board bodies (1) are electrically connected through connecting wires (3).

7. A multi-layer circuit board according to claim 5, characterized in that: A ventilation hole (202) is formed on the connecting arm of the mounting bracket (2) away from the air spraying holes (201).

8. The multi-layer circuit board according to claim 1, characterized in that: The assembling mechanism (6) comprises an upper connecting column (601) fixed to the bottom of the mounting frame (2) and a lower connecting column (603) fixed to the top of the mounting frame (2); a knob tube (602) is slidably sleeved on the upper connecting column (601); the knob tube (602) is opened downward; a stopper (605) is fixedly connected to the bottom of the upper connecting column (601); a spring (604) is sleeved on the upper connecting column (601); the top of the spring (604) abuts against the inner top of the knob tube (602); the bottom of the spring (604) presses against the top of the stopper (605); and the lower connecting column (601) is provided with a plurality of springs (604). A vertical cutout (606) is provided at the top of the lower connecting column (603), an arc-shaped slideway (607) connected to the bottom of the vertical cutout (606) is provided on the surface of the lower connecting column (603), a limit block (609) connected to the top of the arc-shaped slideway (607) is provided on the lower connecting column (603), and the limit block (609) is fixedly connected to the inner wall of the lower end of the knob tube (602), and after the limit block (609) slides from the vertical cutout (606) into the interior of the arc-shaped slideway (607), it rotates to the limit notch (608) and can be stuck in the limit block (609) under the elastic force of the spring (604).

9. A multi-layer circuit board according to claim 8, characterized in that: The outer diameter of the lower connecting column (603) is equal to the inner diameter of the knob tube (602).

10. A multi-layer circuit board according to claim 9, characterized in that: The outer wall of the knob tube (602) is provided with anti-slip patterns.

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