A low-loss high-frequency signal transmission optimized circuit board

Abstract

The utility model relates to the technical field of circuit board, and disclose a kind of low-loss high-frequency signal transmission optimization circuit board, including circuit board body, the surface of the circuit board body is fixedly connected with four telescopic stands, four telescopic stands are two two groups, every group telescopic stand is fixedly connected with the surface of circuit board body, the inner surface of every group telescopic stand is slidably connected with limit plate, the inner surface of every group telescopic stand is slidably connected with sliding block.This kind of low-loss high-frequency signal transmission optimization circuit board, after the disassembly process of traditional circuit board body is completed, it is the way of directly taking circuit board body with hand, however, it must be confirmed safe pinch area of circuit board body before taking, if circuit board body size is small, component is dense, finger is not only difficult to find suitable force, but also need to adjust the position of pinch repeatedly, thereby leading to the time consumption of taking out circuit board body increases, affect work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, and in particular to a low-loss high-frequency signal transmission optimized circuit board. Background Technology

[0002] As communication technology advances to higher frequencies, such as millimeter waves and terahertz, the signal loss problem during transmission becomes increasingly prominent. Traditional circuit boards suffer from three core defects: high dielectric loss (traditional FR-4 substrate has poor dielectric constant stability at high frequencies, with a dielectric loss tangent (Df) typically > 0.02, leading to severe signal energy loss due to dielectric heating); high conductor and structural losses (high copper foil surface roughness exacerbates transmission loss due to the skin effect); and improper design of signal line corners and vias can easily cause impedance mismatch, further increasing reflection loss; inconvenient handling; and high-frequency circuit boards, due to their high integration, are often small in size and have densely packed surface components. The traditional design of high-frequency circuit boards, lacking a dedicated pick-and-place structure, requires staff to repeatedly check the safe gripping area to avoid touching precision components, increasing the time spent on board retrieval by more than 30%. Concentrated finger gripping positions can lead to uneven force on the board, causing bending deformation and hidden damage to internal circuitry. The lack of isolation and protection design allows static electricity or oil from hands to easily contaminate the board, affecting the stability of high-frequency signal transmission. While existing technologies offer improvements to address high-frequency losses, none have solved the problem of ease of pick-and-place. Furthermore, the pick-and-place auxiliary structures of ordinary circuit boards cannot meet the signal shielding and impedance control requirements of high-frequency environments, resulting in low efficiency and high risk of damage during high-frequency circuit board maintenance.

[0003] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: After the traditional circuit board body disassembly process is completed, the circuit board body is picked up directly by hand. However, before picking it up, the safe gripping area of ​​the circuit board body must be identified. If the circuit board body is small and the components are dense, it is not only difficult for the fingers to find the appropriate force, but also requires repeated adjustment of the gripping position, which increases the time spent removing the circuit board body and affects work efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing technology has the disadvantage that after the traditional circuit board body is disassembled, the circuit board body is directly picked up by hand. To this end, we propose a low-loss high-frequency signal transmission optimized circuit board.

[0005] To achieve the above objectives, this application adopts the following technical solution: a low-loss high-frequency signal transmission optimized circuit board, comprising a circuit board body, four telescopic frames fixedly connected to the surface of the circuit board body, the four telescopic frames being in pairs, each pair of telescopic frames being fixedly connected to the surface of the circuit board body, a limit plate being slidably connected to the inner surface of each pair of telescopic frames, a sliding block being slidably connected to the inner surface of each pair of telescopic frames, the sliding block being fixedly connected to the surface of the limit plate, and a pull plate being fixedly connected to the side of each pair of sliding blocks that is close to each other.

[0006] Preferably, a spring is fixedly connected to the inner surface of the telescopic frame, and the other end of the spring is fixedly connected to the limiting plate.

[0007] Preferably, an isolation pad is fixedly connected to the surface of the pull plate, and the size of the limiting plate is adapted to the size of the inner surface of the telescopic frame.

[0008] Preferably, a screw is inserted into the pull plate, and a fixing block is fixedly connected to the side of the circuit board body near the isolation pad. The surface of the fixing block is provided with a screw groove, and the screw is threaded to the inner wall of the screw groove of the fixing block.

[0009] Preferably, a rotating block is fixedly connected to one end of the screw, and an isolation pad is fixedly connected to the arc surface of the rotating block.

[0010] Preferably, an L-shaped plate is fixedly connected to the end of the rotating block away from the screw, and a triangular plate is fixedly connected to the end of the rotating block away from the screw.

[0011] Preferably, two long blocks are fixedly connected to the side of the circuit board body away from the telescopic frame, and the size of the screw is adapted to the size of the screw groove of the fixed block.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model achieves the effect of quickly removing the circuit board body, avoiding the traditional method of directly picking up the circuit board body by hand after the disassembly process is completed. However, before picking it up, it is necessary to first confirm the safe gripping area of ​​the circuit board body. If the circuit board body is small in size and the components are dense, it is not only difficult for the fingers to find the appropriate force, but also requires repeated adjustment of the gripping position, which increases the time spent removing the circuit board body and affects work efficiency. Attached Figure Description

[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of the isolation pad in this utility model;

[0017] Figure 3 This is a schematic diagram of the sliding block in this utility model;

[0018] Figure 4 This is a cross-sectional view of the fixing block in this utility model.

[0019] Legend: 1. Circuit board body; 2. Telescopic frame; 3. Limiting plate; 4. Sliding block; 5. Pull plate; 6. Spring; 7. Isolation pad; 8. Screw; 9. Fixing block; 10. Rotating block; 11. L-shaped plate; 12. Triangular plate; 13. Long block. Detailed Implementation

[0020] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0021] Reference Figure 1-4As shown, this utility model provides a technical solution: a low-loss, high-frequency signal transmission optimized circuit board, including a circuit board body 1. Four telescopic brackets 2 are fixedly connected to the surface of the circuit board body 1, arranged in pairs. Each pair of telescopic brackets 2 is fixedly connected to the surface of the circuit board body 1. A limit plate 3 is slidably connected to the inner surface of each pair of telescopic brackets 2. A sliding block 4 is slidably connected to the inner surface of each pair of telescopic brackets 2, and the sliding block 4 is fixedly connected to the surface of the limit plate 3. A pull plate 5 is fixedly connected to the side of each pair of sliding blocks 4 that is close to each other. This achieves the effect of quickly removing the circuit board body 1, avoiding the traditional method of directly picking up the circuit board body 1 by hand after disassembly. However, before picking it up, it is necessary to first confirm the safe gripping area of ​​the circuit board body 1. If the circuit board body 1 is small in size and has dense components, it is not only difficult for the fingers to find the appropriate force, but also requires repeated adjustments to the gripping position, thus increasing the time required to remove the circuit board body 1. In addition, to reduce work efficiency, a spring 6 is fixedly connected to the inner surface of the telescopic frame 2. The other end of the spring 6 is fixedly connected to the limiting plate 3. The spring 6 itself has elasticity. After the limit is released, the compressed spring 6 can drive the limiting plate 3 and the sliding block 4 to pop out automatically by its own elasticity without the need for additional external force, thereby realizing the automatic reset of the structure before the circuit board body 1 is removed. An isolation pad 7 is fixedly connected to the surface of the pull plate 5. The size of the limiting plate 3 is adapted to the size of the inner surface of the telescopic frame 2. When the operator operates the pull plate 5, the isolation pad 7 can form an effective isolation between the hand and the contact surface of the pull plate 5. Its core function is to block the electrostatic conduction path and prevent the electrostatic on the circuit board body 1 from being transferred to the operator's hand through the pull plate 5, thereby preventing electrostatic damage to the operator's hand. A screw 8 is inserted into the inner thread of the pull plate 5. A fixing block 9 is fixedly connected to the side of the circuit board body 1 near the isolation pad 7. A screw groove is opened on the surface of the fixing block 9. The screw 8 is threadedly connected to the inner wall of the screw groove of the fixing block 9.The screw 8 and the fixing block 9 cooperate to stably constrain the elastic force of the spring 6, preventing the spring 6 from causing the limiting plate 3 and the sliding block 4 to pop out randomly when it is not unlocked. This prevents the components from accidentally displacing and colliding with surrounding non-contacting parts. One end of the screw 8 is fixedly connected to a rotating block 10, and the arc surface of the rotating block 10 is fixedly connected to an isolation pad 7. The purpose of setting the rotating block 10 is to allow the operator to quickly release the limiting of the screw 8 without the aid of tools. The end of the rotating block 10 away from the screw 8 is fixedly connected to an L-shaped plate 11. A triangular plate 12 is fixedly connected to one end of the screw 8. The L-shaped plate 11 and the triangular plate 12 work together to form a clear guide mark, which clearly indicates to the staff the correct rotation direction of the rotating block 10. Two long blocks 13 are fixedly connected to the side of the circuit board body 1 away from the telescopic frame 2. The size of the screw 8 is adapted to the size of the screw groove of the fixing block 9. The purpose of installing the long blocks 13 is to effectively isolate the circuit board body 1 from the contact surface, thereby forming a stable ventilation gap between the two and creating more sufficient air circulation space for the heat dissipation of the circuit board body 1.

[0022] Working principle: When the operator needs to remove the circuit board body 1, they only need to rotate the isolation pad 7 attached to the arc surface of the rotating plate along the direction indicated by the L-shaped plate 11 and the triangular plate 12. The isolation pad 7 will simultaneously drive the rotating block 10 to rotate, which in turn drives the screw 8 to rotate until the screw 8 disengages from the screw groove in the fixed block 9, releasing the limiting constraint of the pull plate 5. At this time, the compressed spring 6 will quickly release its elastic force, causing the limiting plate 3 to pop up. The popped-out limiting plate 3 will cause the sliding block 4 to move up, and the sliding block 4 will move up in conjunction with the pull plate 5. Then the operator only needs to... By holding the isolation pad 7 on the surface of the pull plate 5, the circuit board body 1 can be easily and quickly removed, achieving the effect of quickly removing the circuit board body 1. This avoids the traditional method of directly picking up the circuit board body 1 by hand after the disassembly process is completed. However, before picking it up, it is necessary to first confirm the safe gripping area of ​​the circuit board body 1. If the circuit board body 1 is small in size and the components are dense, it is not only difficult for the fingers to find the appropriate force, but also requires repeated adjustment of the gripping position, which increases the time spent removing the circuit board body 1 and affects work efficiency.

[0023] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A low-loss, high-frequency signal transmission optimized circuit board, characterized in that, The circuit board includes a circuit board body (1), and four telescopic frames (2) are fixedly connected to the surface of the circuit board body (1). The four telescopic frames (2) are arranged in pairs. Each set of telescopic frames (2) is fixedly connected to the surface of the circuit board body (1). A limit plate (3) is slidably connected to the inner surface of each set of telescopic frames (2). A sliding block (4) is slidably connected to the inner surface of each set of telescopic frames (2). The sliding block (4) is fixedly connected to the surface of the limit plate (3). A pull plate (5) is fixedly connected to the side of each set of sliding blocks (4) that is close to each other.

2. The low-loss high-frequency signal transmission optimized circuit board according to claim 1, characterized in that: A spring (6) is fixedly connected to the inner surface of the telescopic frame (2), and the other end of the spring (6) is fixedly connected to the limiting plate (3).

3. The low-loss high-frequency signal transmission optimized circuit board according to claim 1, characterized in that: The surface of the pull plate (5) is fixedly connected with an isolation pad (7), and the size of the limiting plate (3) is adapted to the size of the inner surface of the telescopic frame (2).

4. The low-loss high-frequency signal transmission optimized circuit board according to claim 1, characterized in that: The pull plate (5) is threaded with a screw (8), and the circuit board body (1) is fixedly connected to a fixing block (9) on the side near the isolation pad (7). The surface of the fixing block (9) is provided with a screw groove, and the screw (8) is threadedly connected to the inner wall of the screw groove of the fixing block (9).

5. The low-loss high-frequency signal transmission optimized circuit board according to claim 4, characterized in that: One end of the screw (8) is fixedly connected to a rotating block (10), and the arc surface of the rotating block (10) is fixedly connected to an isolation pad (7).

6. The low-loss high-frequency signal transmission optimized circuit board according to claim 5, characterized in that: An L-shaped plate (11) is fixedly connected to one end of the rotating block (10) away from the screw (8), and a triangular plate (12) is fixedly connected to the other end of the rotating block (10) away from the screw (8).

7. The low-loss high-frequency signal transmission optimized circuit board according to claim 4, characterized in that: Two long blocks (13) are fixedly connected to the side of the circuit board body (1) away from the telescopic frame (2), and the size of the screw (8) is adapted to the size of the screw groove of the fixing block (9).

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