Multi-layer circuit board with special-shaped holes

Abstract

The utility model discloses a multi-layer circuit board with special-shaped holes, which comprises a circuit board body, positioning holes are arranged at four corners of the circuit board body, connecting pins are arranged on the circuit board body, the special-shaped holes are arranged on the circuit board body, buffer assemblies are arranged in the special-shaped holes, and the buffer assemblies are arranged on the circuit board body. The buffer assembly comprises a buffer air bag fixed in the special-shaped hole, a first butt joint hole and a second butt joint hole are formed in the buffer air bag, an inflation pipeline is connected into the second butt joint hole, a one-way valve is arranged in the inflation pipeline, and a detection mechanism is connected into the first butt joint hole. According to the multilayer circuit board with the special-shaped hole, the buffer air bag can be inflated through the inflation pipeline during packaging, so that the buffer air bag is expanded, and the expanded buffer air bag can be clamped in a gap between the electrical assembly and the special-shaped hole, so that the friction borne by the circuit board body is reduced when the packaging shell vibrates, the risk of open circuit is reduced, and the reliability of the circuit board is improved. And the detection mechanism can detect whether the buffer airbag leaks air.

Description

Technical Field

[0001] The utility model relates to the field of circuit boards, in particular to a multilayer circuit board with special-shaped holes. Background Art

[0002] Multilayer circuit boards are composed of connecting wires on several layers of insulating substrates and pads for assembling and welding electronic components. They have the function of conducting each layer of circuits and insulating each other. The emergence of multilayer circuit boards is mainly to meet the needs of increasing the density of integrated circuit packaging and highly concentrated interconnection lines. In order to further reduce the package volume, special-shaped holes will be opened on the multilayer circuit board so that other electrical components in the package shell can pass through the multilayer circuit board to form a more compact package layout. However, the gap between the electrical component and the special-shaped hole is small. When the package shell vibrates, the electrical component will rub against the special-shaped hole, causing the circuit on the circuit board to be worn, resulting in the risk of short circuit. Utility Model Content

[0003] The main purpose of the utility model is to provide a multilayer circuit board with special-shaped holes, which can effectively solve the problems mentioned in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A multilayer circuit board with special-shaped holes comprises a circuit board body, positioning holes are provided at the four corners of the circuit board body, connecting pins are provided on the circuit board body, special-shaped holes are provided on the circuit board body, a buffer assembly is provided in the special-shaped hole, the buffer assembly comprises a buffer airbag fixed in the special-shaped hole, a first docking hole and a second docking hole are provided on the buffer airbag, an inflation pipe is connected in the second docking hole, a one-way valve is provided in the inflation pipe, a detection mechanism is connected in the first docking hole, the detection mechanism comprises a detection pipe connected in the first docking hole, a detection cylinder is provided at the end of the detection pipe, a tension spring is provided in the detection cylinder, a metal piston is movably installed in the detection cylinder above the tension spring, a terminal is fixedly installed on the detection cylinder, and an indicator light is connected to the terminal.

[0006] Furthermore, a sealing end cap is provided at the end of the inflation pipe, a thread is provided inside the sealing end cap, and the sealing end cap is fixedly connected to the end of the inflation pipe via the thread.

[0007] Furthermore, the inflation pipe is connected to the cushion airbag through the second docking hole, and the one-way valve only allows external gas to enter the cushion airbag through the inflation pipe.

[0008] Furthermore, the detection pipe is connected to the buffer airbag through the first docking hole, and the detection cylinder and the buffer airbag are communicated through the detection pipe.

[0009] Furthermore, one end of the tension spring is fixed to the bottom of the detection cylinder, and the other end of the tension spring is fixed to the metal piston, and the metal piston is aligned with the terminal up and down.

[0010] Furthermore, a battery is connected to the terminal, and the battery and the indicator light are connected in series via a wire.

[0011] Furthermore, the buffer assembly is connected to the circuit board body through a special-shaped hole.

[0012] Furthermore, the circuit board body is installed in the packaging shell through the positioning holes.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The buffer airbag is compounded in the special-shaped hole. During packaging, air can be inflated into the buffer airbag through the inflation pipe to make it expand. The expanded buffer airbag will be stuck in the gap between the electrical component and the special-shaped hole, thereby reducing the friction on the circuit board body when the packaging shell vibrates and reducing the risk of short circuit. Secondly, the detection mechanism can detect whether the buffer airbag is leaking. Once the buffer airbag leaks, the indicator light will go out, thereby reminding the user to repair it in time, reducing the occurrence of circuit board failures and extending the service life of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of a buffer component of the utility model;

[0017] Figure 3 For this utility model Figure 1 A is an enlarged view of the middle figure;

[0018] Figure 4 It is a schematic diagram of the detection mechanism of the utility model.

[0019] In the figure: 1. Special-shaped hole; 2. Circuit board body; 3. Positioning hole; 4. Connecting pin; 5. Buffer assembly; 501. Buffer airbag; 502. First docking hole; 503. Second docking hole; 504. Sealing end cover; 505. Inflating pipe; 506. One-way valve; 6. Detection mechanism; 601. Indicator light; 602. Terminal; 603. Metal piston; 604. Detection cylinder; 605. Tension spring; 606. Detection pipe. DETAILED DESCRIPTION

[0020] 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.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0022] When used herein, it should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, components, parts or combinations thereof. At the same time, the terms used in this specification include any and all combinations of the relevant listed items.

[0023] like Figure 1 As shown, a multilayer circuit board with special-shaped holes includes a circuit board body 2, positioning holes 3 are opened at the four corners of the circuit board body 2, connecting pins 4 are provided on the circuit board body 2, special-shaped holes 1 are opened on the circuit board body 2, a buffer component 5 is arranged in the special-shaped hole 1, and a detection mechanism 6 is connected to the first docking hole 502. The circuit board body 2 can be more compactly installed in the packaging shell through the special-shaped hole 1, and the buffer component 5 can reduce the friction of the circuit board body. Secondly, the detection mechanism 6 can detect the function of the buffer component 5 in real time.

[0024] like Figure 2 As shown, the buffer component 5 includes a buffer airbag 501 fixed in the special-shaped hole 1, and a first docking hole 502 and a second docking hole 503 are provided on the buffer airbag 501. The second docking hole 503 is connected to an inflation pipe 505, and a one-way valve 506 is provided in the inflation pipe 505. A sealing end cover 504 is provided at the end of the inflation pipe 505, and a thread is provided in the sealing end cover 504. The sealing end cover 504 is fixedly connected to the end of the inflation pipe 505 by threads. The inflation pipe 505 is connected to the buffer airbag 501 through the second docking hole 503, and the one-way valve 506 only allows external gas to enter the buffer airbag 501 through the inflation pipe 505.

[0025] Specifically, air can be inflated into the buffer airbag 501 through the air inlet pipe 505. During the inflation process, the one-way valve 506 can prevent gas leakage. After the buffer airbag 501 is inflated, it will expand, so that the buffer airbag 501 is stuck in the gap between the electrical component and the special-shaped hole 1, thereby reducing the friction of the circuit board body 2 when the packaging shell vibrates.

[0026] like Figure 3 and Figure 4 As shown, the detection mechanism 6 includes a detection pipe 606 connected to the first docking hole 502, a detection cylinder 604 is provided at the end of the detection pipe 606, a tension spring 605 is provided in the detection cylinder 604, a metal piston 603 is movably installed in the detection cylinder 604 above the tension spring 605, a terminal 602 is fixedly installed on the detection cylinder 604, an indicator light 601 is connected to the terminal 602, the detection pipe 606 is connected to the buffer airbag 501 through the first docking hole 502, the detection cylinder 604 and the buffer airbag 501 are connected through the detection pipe 606, one end of the tension spring 605 is fixed on the bottom of the detection cylinder 604, and the other end of the tension spring 605 is fixed on the metal piston 603, and the metal piston 603 is aligned with the terminal 602 up and down.

[0027] Specifically, when the buffer airbag 501 is filled with gas, the metal piston 603 will move to the uppermost end of the detection cylinder 604, so that the metal piston 603 contacts the terminal 602, and then connects the power of the indicator light 601, so that the indicator light 601 is always on; when the buffer airbag 501 leaks, the tension spring 605 will pull the metal piston 603 to move downward, so that the metal piston 603 is away from the terminal 602, and then disconnects the power of the indicator light 601, so that the indicator light 601 goes out, reminding the user that the buffer airbag 501 is faulty.

[0028] It should be noted that the utility model is a multilayer circuit board with special-shaped holes. In actual use, the buffer airbag 501 is first compounded in the special-shaped hole 1. After the buffer airbag 501 is compounded in the special-shaped hole 1, air can be inflated into the buffer airbag 501 through the air intake pipe 505 to expand the buffer airbag 501 and get stuck in the gap between the electrical component and the special-shaped hole 1, thereby reducing the friction on the circuit board body 2 when the packaging shell vibrates, reducing the risk of short circuit. Under normal circumstances, the air pressure inside the buffer airbag 501 will push the metal piston 603 to move to the uppermost end of the detection cylinder 604, so that the indicator light 601 is always on. Once the buffer airbag 501 leaks, the spring 605 will pull the metal piston 603 away from the terminal 602, thereby extinguishing the indicator light 601 when the buffer airbag 501 leaks, reminding the user to repair it in time.

[0029] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0030] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A multilayer circuit board with special-shaped holes, comprising a circuit board body, characterized in that: The circuit board body is provided with positioning holes at the four corners, the circuit board body is provided with connecting pins, the circuit board body is provided with a special-shaped hole, the special-shaped hole is provided with a buffer assembly, the buffer assembly includes a buffer airbag fixed in the special-shaped hole, the buffer airbag is provided with a first docking hole and a second docking hole, the second docking hole is connected with an inflation pipe, the inflation pipe is provided with a one-way valve, the first docking hole is connected with a detection mechanism, the detection mechanism includes a detection pipe connected to the first docking hole, a detection cylinder is provided at the end of the detection pipe, a tension spring is provided in the detection cylinder, a metal piston is movably installed in the detection cylinder above the tension spring, a terminal is fixedly installed on the detection cylinder, and an indicator light is connected to the terminal.

2. A multilayer circuit board with special-shaped holes according to claim 1, characterized in that: A sealing end cap is provided at the end of the inflation pipe, a thread is provided inside the sealing end cap, and the sealing end cap is fixedly connected to the end of the inflation pipe through the thread.

3. A multilayer circuit board with special-shaped holes according to claim 1, characterized in that: The inflation pipe is connected to the cushion airbag through the second docking hole, and the one-way valve only allows external gas to enter the cushion airbag through the inflation pipe.

4. A multilayer circuit board with special-shaped holes according to claim 3, characterized in that: The detection pipeline is connected to the buffer airbag through the first docking hole, and the detection cylinder is connected to the buffer airbag through the detection pipeline.

5. A multilayer circuit board with special-shaped holes according to claim 1, characterized in that: One end of the tension spring is fixed to the bottom of the detection cylinder, and the other end of the tension spring is fixed to the metal piston, and the metal piston is aligned with the terminal up and down.

6. A multilayer circuit board with special-shaped holes according to claim 1, characterized in that: The terminal is connected with a storage battery, and the storage battery and the indicator light are connected in series through a wire.

7. A multilayer circuit board with special-shaped holes according to claim 1, characterized in that: The buffer component is connected to the circuit board body through a special-shaped hole.

8. A multilayer circuit board with special-shaped holes according to claim 1, characterized in that: The circuit board body is installed in the packaging shell through the positioning holes.

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