A printed circuit board with a high-speed signal line wiring structure

Abstract

This utility model discloses a printed circuit board with a high-speed signal line wiring structure, including a base plate, a high-speed circuit board body, and a shielding cover. A cover fixing member is assembled on the outer periphery of the top of the base plate, and a splitting and lifting member is provided between the front and rear positions of the cover fixing member. The advantages are: after the high-speed circuit board body is raised and fixed above the top of the base plate, the shielding cover can be limited and fixed by the cover fixing member on the outer periphery of the top surface of the base plate, thus achieving the fixed installation of the shielding cover around the high-speed circuit board body. Simultaneously, the splitting and lifting member between the front and rear positions of the cover fixing member allows the shielding cover to be easily removed from the periphery of the high-speed circuit board body without being handled by personnel, preventing deformation of the shielding cover and improving its stability and reliability.

Description

Technical Field

[0001] This utility model relates to the field of printed circuit board technology, and specifically to a printed circuit board with a high-speed signal line wiring structure. Background Technology

[0002] With the rapid development of information technology, the speed and performance requirements of electronic devices are becoming increasingly demanding. In this context, high-speed PCBs have emerged. A high-speed PCB is a circuit board specifically designed for high-speed signal transmission, playing a crucial role in modern electronic devices.

[0003] High-speed PCBs are circuit boards that can support high-speed signal transmission. High-speed signals typically refer to signals with frequencies higher than 100MHz, such as high-speed digital signals and high-speed analog signals. These signals are affected by factors such as circuit board materials, layout, and wiring during transmission, thus requiring specially designed circuit boards to ensure signal integrity and reliability.

[0004] Although existing high-speed PCBs are capable of transmitting high-speed signals, in order to ensure that the transmitted high-speed signals have low noise, a shielding cover is usually required on the outside of the high-speed PCB during specific installation. However, existing high-speed PCBs usually use adhesive or other methods to fix the shielding cover, and the shielding cover itself is usually thin. Therefore, when removing it, it is often necessary for personnel to pinch the shielding cover and apply force to remove it smoothly. This makes the shielding cover prone to deformation, which directly affects the stability of the shielding cover in use. Utility Model Content

[0005] The purpose of this invention is to provide a printed circuit board with a high-speed signal line wiring structure to solve the above problems, as detailed below.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This utility model provides a printed circuit board with a high-speed signal line wiring structure, including a base plate, a high-speed circuit board body and a shielding cover. The high-speed circuit board body is raised and fixed above the top of the base plate and is placed flat. The shielding cover is invertedly placed on the top of the base plate at the periphery of the high-speed circuit board body, so as to isolate and shield the high-speed circuit board body with the help of the shielding cover.

[0008] The cover fixing member assembled on the top outer periphery of the base plate is used to limit and fix the shielding cover by means of the cover fixing member;

[0009] A splitting and lifting component is provided between the front and rear positions of the cover fixing component, which is used to smoothly remove the shielding cover from the periphery of the high-speed circuit board body without the shielding cover being held by a person's hands.

[0010] Preferably, the high-speed circuit board body is raised and fixed on the top of the base plate in the following manner: the top surface of the base plate is vertically fixed with connecting sleeves at the four corners below the high-speed circuit board body, and the top of the connecting sleeves is higher than the cover fixing member; the four corners of the high-speed circuit board body are vertically inserted with connecting members; the four corners of the high-speed circuit board body are all placed on the top of the connecting sleeves; and the connecting members are coaxially combined with the corresponding connecting sleeves.

[0011] Preferably, the connecting sleeve is an internally threaded sleeve, the connector is a screw with a head at the top, and the connector presses the corner of the high-speed circuit board body against the top of the connecting sleeve.

[0012] Preferably, the base plate has mounting holes on the inner side of the connecting sleeve.

[0013] Preferably, the shielding cover is a rectangular box-shaped metal shielding cover.

[0014] Preferably, the cover fixing component includes a fixing frame and an elastic liner. The top surface of the base plate extends vertically to fix the fixing frame in a rectangular frame shape outside the connecting sleeve, and the top of the fixing frame is lower than the top of the connecting sleeve. At the same time, the split lifting component is provided between the front and rear of the fixing frame. The top surface of the fixing frame has a positioning groove vertically opened along the entire circumference, and the inner wall of the positioning groove is parallel to and fixed with the elastic liner. Meanwhile, the vertical parts of the shielding cover are vertically inserted into the gaps between the elastic liners in a tight fit manner.

[0015] Preferably, the elastic inner lining is made of rubber, the positioning slots are all blind slots in the vertical direction, and the bottom end of the shielding cover contacts the bottom of the positioning slot. At the same time, the inner top surface of the shielding cover is higher than the highest point of the top of the high-speed circuit board body.

[0016] Preferably, the split lifting component includes a mating notch and a lifting plate. The mating notch is vertically provided at both the front and rear positions of the fixing frame. The mating notches are corresponding to each other and are open at the front, rear, and top. The lifting plate is horizontally arranged between the mating notches at the front and rear positions. The mating relationship between the lifting plate and the mating notch is a vertical clearance fit, and the outer end of the lifting plate extends out of the corresponding mating notch.

[0017] Preferably, the lifting plate is a rectangular strip with curved front and rear ends, and the mating notches are rectangular notches. When the lifting plate descends to the bottom surface and contacts the bottom of the mating notch, the top surface of the lifting plate is not higher than the bottom of the positioning slot.

[0018] Preferably, the lifting plate has a guide hole vertically opened in the middle, and a guide rod is vertically fixed in the middle of the top surface of the base plate. The guide rod passes through the guide hole in a vertical sliding fit, and the top end of the guide rod is coaxially fitted with an anti-detachment cap by a threaded fit. The top end of the anti-detachment cap is lower than the top end of the connecting sleeve.

[0019] In the application of the high-speed circuit board with a high-speed signal line wiring structure, specifically in the actual use of the high-speed circuit board body, after the high-speed circuit board body is raised and fixed above the top of the base plate, the shielding cover can be limited and fixed by the cover fixing member set on the outer periphery of the top surface of the base plate. This achieves the covering and fixing of the shielding cover around the high-speed circuit board body. At the same time, the splitting and lifting member is also provided between the front and rear positions of the cover fixing member. Then, without being held by personnel, the shielding cover can be easily removed from the periphery of the high-speed circuit board body by means of the splitting and lifting member, avoiding the deformation of the shielding cover itself and improving the stability and reliability of the shielding cover. Since the shielding cover is tightly fitted between the elastic liner of the cover fixing component, the shielding cover can be quickly assembled on the top of the base plate and covered around the high-speed circuit board body. At the same time, only by applying force with the splitting and lifting member to lift the shielding cover vertically upward and detach it from the elastic liner, the shielding cover can be quickly separated from the top of the base plate and removed. The shielding cover surrounding the high-speed circuit board body is easily assembled and disassembled on the top of the base plate. This facilitates both quick assembly of the shielding cover to provide shielding and protection for the high-speed circuit board body and quick removal of the shielding cover from the top of the base plate for inspection and maintenance. Furthermore, the shielding cover can be lifted by moving the lifting plate vertically along the mating notch, allowing it to be removed without being handled by personnel. The method of removing the shielding cover is simple and easy to operate, avoiding deformation of the shielding cover caused by personnel pinching it with their hands. At the same time, the lifting plate can be guided by sliding vertically along the guide post through the guide hole, preventing the lifting plate from deviating. Moreover, the anti-detachment cap at the top of the guide rod can also prevent the lifting plate from detaching from the top of the mating notch. This makes it easy for the lifting plate to be reused and also makes it easy for the lifting plate to return to its initial position after use, avoiding the situation of the lifting plate being accidentally detached and lost.

[0020] The beneficial effects are as follows: 1. After the high-speed circuit board body is raised and fixed above the top of the base plate, the shielding cover can be limited and fixed by the cover fixing parts set on the outer periphery of the top surface of the base plate. This realizes the covering and fixing of the shielding cover on the periphery of the high-speed circuit board body. At the same time, there are also splitting and lifting parts between the front and rear positions of the cover fixing parts. Then, without the shielding cover being held by the personnel, the shielding cover can be smoothly removed from the periphery of the high-speed circuit board body by means of the splitting and lifting parts, avoiding the shielding cover from deforming itself and improving the stability and reliability of the shielding cover in use.

[0021] 2. By using a tight fit between the elastic inner lining of the cover fixing component, the shielding cover can be quickly assembled on the top of the base plate and cover the periphery of the high-speed circuit board body. At the same time, by simply using the disassembly lifting component to apply force, the shielding cover can be lifted vertically upward to detach from the elastic inner lining. Then, the shielding cover can be quickly disassembled from the top of the base plate and removed from the periphery of the high-speed circuit board body. The method of fixing and disassembling the shielding cover on the top of the base plate is simple and easy to implement. It is convenient to quickly assemble the shielding cover on the top of the base plate to shield and isolate the high-speed circuit board body, and it is also convenient to quickly remove the shielding cover from the top of the base plate to inspect and maintain the high-speed circuit board body.

[0022] 3. The shielding cover can be lifted by moving the lifting plate vertically along the mating notch. This allows the shielding cover to be removed without being handled by personnel. The removal of the shielding cover is simple and easy to operate, avoiding deformation caused by personnel gripping the shielding cover. At the same time, the lifting plate can be guided by sliding vertically along the guide post through the guide hole to prevent the lifting plate from deviating. Moreover, the anti-detachment cap at the top of the guide rod can prevent the lifting plate from detaching from the top of the mating notch. This makes it easy for the lifting plate to be reused and also makes it easy for the lifting plate to return to the initial position after use, avoiding accidental detachment and loss of the lifting plate. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the modular design of this utility model.

[0025] Figure 2 This is a schematic diagram of the combined state of this utility model;

[0026] Figure 3 This is a utility model Figure 2 A partial schematic diagram;

[0027] Figure 4 This is a utility model Figure 3 A magnified view of part A;

[0028] Figure 5 This is a utility model Figure 1 Front view diagram;

[0029] Figure 6This is a utility model Figure 1 A left-view diagram;

[0030] Figure 7 This is a utility model Figure 1 A top-down view.

[0031] The annotations in the attached figures are explained as follows:

[0032] 1. Shielding cover; 2. High-speed circuit board body; 3. Connector; 4. Connecting sleeve; 5. Base plate; 501. Mounting hole; 6. Cover fixing component; 601. Fixing frame; 602. Positioning slot; 603. Elastic liner; 7. Split lifting component; 701. Lifting plate; 702. Mating notch; 703. Guide hole; 704. Guide rod; 705. Anti-detachment cap. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] See Figures 1-7As shown, this utility model provides a printed circuit board with a high-speed signal line wiring structure, including a base plate 5, a high-speed circuit board body 2 and a shielding cover 1. The high-speed circuit board body 2 is raised and fixed above the top of the base plate 5 and is placed flat. The top of the base plate 5 is covered with the shielding cover 1 at the periphery of the high-speed circuit board body 2, so as to isolate and shield the high-speed circuit board body 2 with the help of the shielding cover 1. A cover fixing member 6 is assembled on the top outer periphery of the base plate 5 to limit and fix the shielding cover 1. Specifically, the cover fixing member 6 includes a fixing frame 601 and an elastic inner liner 603. A rectangular frame-shaped fixing frame 601 is vertically extended and fixed on the top surface of the base plate 5 outside the connecting sleeve 4, and the top of the fixing frame 601 is lower than the top of the connecting sleeve 4. At the same time, a split lifting member 7 is provided between the front and rear of the fixing frame 601. A positioning groove 602 is vertically opened on the top surface of the fixing frame 601 along the entire circumference, and the inner wall of the positioning groove 602 is parallelly covered and fixed with the elastic inner liner 603. The vertical parts of the shield 1 are all inserted vertically into the gaps between the elastic inner linings 603 in a tight fit manner. The purpose of this arrangement is that by using the shield 1 to be tightly fitted between the elastic inner linings 603 of the cover fixing assembly, the shield 1 can be quickly assembled on the top of the base plate 5 and cover the periphery of the high-speed circuit board body 2. At the same time, it is only necessary to use the split lifting component 7 to apply force to lift the shield 1 vertically upward and separate it from the elastic inner linings 603. Then the shield 1 can be quickly separated from the top of the base plate 5 and removed from the periphery of the high-speed circuit board body 2. The method of fixing, assembling and disassembling the shield 1 on the top of the base plate 5 is simple and easy to implement.

[0035] See Figures 1-4As shown, a splitting and lifting component 7 is provided between the front and rear positions of the cover fixing component 6. This component allows the shielding cover 1 to be easily removed from the periphery of the high-speed circuit board body 2 without being handled by personnel. Specifically, the splitting and lifting component 7 includes a mating notch 702 and a lifting plate 701. The front and rear positions of the fixing frame 601 are vertically provided with mating notches 702, which correspond to each other and are open at the front, rear, and top. A lifting plate 701 is horizontally arranged between the front and rear mating notches 702. The fit between the lifting plate 701 and the mating notch 702 is a vertical clearance fit, and the outer end of the lifting plate 701 extends beyond the corresponding mating notch 702. A guide hole 703 is vertically provided in the middle of the lifting plate 701. A guide rod 704 is vertically fixed in the middle of the top surface of the base plate 5, and the guide rod 704 passes through the guide hole 703 in a vertical sliding fit. The top end is coaxially fitted with an anti-detachment cap 705 via a threaded connection, and the top surface of the anti-detachment cap 705 is lower than the top end of the connecting sleeve 4. The purpose of this design is to allow the shielding cover 1 to be lifted by moving the lifting plate 701 vertically upward along the mating notch 702. This allows the shielding cover 1 to be removed without being held by personnel. The removal of the shielding cover 1 is simple and easy to operate, avoiding deformation of the shielding cover 1 caused by personnel holding it. At the same time, the lifting plate 701 can be guided by sliding vertically along the guide post through the guide hole 703, preventing the lifting plate 701 from deviating. Moreover, the anti-detachment cap 705 at the top of the guide rod 704 can also prevent the lifting plate 701 from being removed from the top of the mating notch 702. This makes it easy for the lifting plate 701 to be reused and also makes it easy for the lifting plate 701 to return to its initial position after use.

[0036] See Figures 1-7As shown, the following optimizations have been made to this application. Specifically, the high-speed circuit board body 2 is raised and fixed on the top of the base plate 5 by means of connecting sleeves 4 vertically fixed at the four corners below the high-speed circuit board body 2 on the top surface of the base plate 5, with the top of the connecting sleeves 4 higher than the cover fixing member 6. Connecting members 3 are vertically inserted at the four corners of the high-speed circuit board body 2, and the four corners of the high-speed circuit board body 2 are all supported by the top of the connecting sleeves 4. The connecting members 3 are coaxially combined with the corresponding connecting sleeves 4. This arrangement facilitates the stable raising and fixing of the high-speed circuit board body 2 on the top of the base plate 5 by means of connecting members 3 and connecting sleeves 4. Optionally, the connecting sleeves 4 are internally threaded sleeves, and the connecting members 3 are screws with heads at the top. The connecting members 3 press the corners of the high-speed circuit board body 2 tightly against the top of the connecting sleeves 4. This arrangement facilitates the quick assembly and disassembly of the connecting members 3 and connecting sleeves 4 by screwing the connecting members 3. Alternatively, the base plate 5 may have mounting holes 501 on the inner side of the connecting sleeve 4, so that the base plate 5 can be fixed in the setting position by means of screws or other means through the mounting holes 501. Preferably, the base plate 5 is a metal plate with good electromagnetic shielding capability, so that the high-speed circuit board body 2 can be shielded and protected from the bottom.

[0037] See Figures 1-7 As shown, the shielding cover 1 is a rectangular box-shaped metal shielding cover 1. Preferably, the material of the shielding cover 1 has good electromagnetic shielding capabilities, so that the shielding cover 1 can provide good shielding protection for the high-speed circuit board body 2 from the outside. Optionally, the elastic inner lining 603 is a rubber lining plate, and the positioning slots 602 are blind slots in the vertical direction. The bottom end of the shielding cover 1 contacts the bottom of the positioning slot 602, and the inner top surface of the shielding cover 1 is higher than the highest point of the high-speed circuit board body 2, so that the shielding cover 1 can be squeezed and tightened and fixed by the elastic deformation of the elastic inner lining 603. Alternatively, the lifting plate 701 is a rectangular strip with curved front and rear ends, and the mating notches 702 are rectangular notches. When the lifting plate 701 descends to the bottom and contacts the bottom of the mating notch 702, the top surface of the lifting plate 701 is not higher than the bottom of the positioning slot 602. This setting makes it easy for the operator to hook the two ends of the lifting plate 701 with their fingers and lift it up, while also preventing the lifting plate 701 from interfering with the smooth fixing of the shielding cover 1.

[0038] Using the above structure, in the actual use of the high-speed circuit board body 2, after the high-speed circuit board body 2 is raised and fixed above the top of the base plate 5, the shielding cover 1 can be limited and fixed by the cover fixing member 6 set on the outer periphery of the top surface of the base plate 5. This realizes the covering and fixing of the shielding cover 1 around the high-speed circuit board body 2. At the same time, a splitting and lifting member 7 is also set between the front and rear positions of the cover fixing member 6. Then, without the shielding cover 1 being held by the hands, the shielding cover 1 can be easily removed from the high-speed circuit board body 2 by means of the splitting and lifting member 7. The shielding cover 1 is enclosed to prevent deformation, thus improving its stability and reliability. Because the shielding cover 1 is tightly fitted between the elastic inner linings 603 of the cover fixing assembly, it can be quickly assembled on top of the base plate 5 and cover the high-speed circuit board body 2. Simultaneously, by applying force with the splitting lifting component 7, the shielding cover 1 can be vertically lifted away from the elastic inner linings 603, allowing it to be quickly separated from the top of the base plate 5 and removed from the high-speed circuit board body 2. The top fixing and disassembly method is simple and easy to implement. It facilitates the quick assembly of the shielding cover 1 onto the top of the base plate 5 to provide shielding and isolation protection for the high-speed circuit board body 2. It also facilitates the quick removal of the shielding cover 1 from the top of the base plate 5 for inspection and maintenance of the high-speed circuit board body 2. Furthermore, since the shielding cover 1 can be lifted by moving the lifting plate 701 vertically upward along the mating notch 702, the shielding cover 1 can be removed without being handled by personnel. The removal method of the shielding cover 1 is simple and easy to operate. This design avoids deformation of the shielding cover 1 caused by personnel pinching it with their hands. At the same time, the lifting plate 701 can be guided by sliding vertically along the guide column through the guide hole 703, preventing the lifting plate 701 from deviating. Furthermore, the anti-detachment cap 705 at the top of the guide rod 704 can prevent the lifting plate 701 from detaching from the top of the mating notch 702. This makes it easy for the lifting plate 701 to be reused and also makes it easy for the lifting plate 701 to return to its initial position after use, preventing the lifting plate 701 from being accidentally detached and lost.

[0039] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A printed circuit board with a high-speed signal line wiring structure, comprising a base plate (5), a high-speed circuit board body (2), and a shielding cover (1), characterized in that: The high-speed circuit board body (2) is raised and fixed above the top of the base plate (5) and is placed flat. The top of the base plate (5) is covered with the shielding cover (1) at the position of the periphery of the high-speed circuit board body (2) to isolate and shield the high-speed circuit board body (2) with the help of the shielding cover (1). The cover fixing member (6) is assembled on the top outer periphery of the base plate (5) to limit and fix the shielding cover (1) by means of the cover fixing member (6); A splitting and lifting component (7) is provided between the front and rear positions of the cover fixing component (6) to facilitate the removal of the shield (1) from the periphery of the high-speed circuit board body (2) without the shield (1) being held by a person's hand.

2. The printed circuit board with a high-speed signal line wiring structure according to claim 1, characterized in that: The high-speed circuit board body (2) is raised and fixed on the top of the base plate (5) in the following specific way: the top surface of the base plate (5) is vertically fixed with connecting sleeves (4) at the four corners below the high-speed circuit board body (2), and the top of the connecting sleeves (4) is higher than the cover fixing member (6). Connecting members (3) are vertically inserted at the four corners of the high-speed circuit board body (2). The four corners of the high-speed circuit board body (2) are all padded on the top of the connecting sleeves (4), and the connecting members (3) are coaxially combined with the corresponding connecting sleeves (4).

3. A printed circuit board with a high-speed signal line wiring structure according to claim 2, characterized in that: The connecting sleeve (4) is an internally threaded sleeve, and the connector (3) is a screw with a head at the top. The connector (3) presses the corner of the high-speed circuit board body (2) against the top of the connecting sleeve (4).

4. A printed circuit board with a high-speed signal line wiring structure according to claim 2, characterized in that: The base plate (5) has mounting holes (501) on the inner side of the connecting sleeve (4).

5. A printed circuit board with a high-speed signal line wiring structure according to claim 4, characterized in that: The shielding cover (1) is a rectangular box-shaped metal shielding cover.

6. A printed circuit board with a high-speed signal line wiring structure according to any one of claims 2-5, characterized in that: The cover fixing component (6) includes a fixing frame (601) and an elastic inner liner (603). The top surface of the base plate (5) extends vertically to the outside of the connecting sleeve (4) and is fixed with the fixing frame (601) in the shape of a rectangular frame. The top of the fixing frame (601) is lower than the top of the connecting sleeve (4). At the same time, the split lifting component (7) is provided between the front and rear of the fixing frame (601). The top surface of the fixing frame (601) is vertically provided with a positioning slot (602) along the entire circumference. The inner wall of the positioning slot (602) is parallel to and fixed with the elastic inner liner (603). At the same time, the vertical part of the shielding cover (1) is vertically inserted into the gap between the elastic inner liners (603) in a tight fit.

7. A printed circuit board with a high-speed signal line wiring structure according to claim 6, characterized in that: The elastic inner lining (603) is a rubber lining plate, the positioning slot (602) is a blind slot in the vertical direction, and the bottom end of the shield (1) contacts the bottom of the positioning slot (602). At the same time, the inner top surface of the shield (1) is higher than the highest position of the top of the high-speed circuit board body (2).

8. A printed circuit board with a high-speed signal line wiring structure according to claim 7, characterized in that: The split lifting component (7) includes a mating notch (702) and a lifting plate (701). The mating notch (702) is vertically provided at both the front and rear positions of the fixed frame (601). The mating notches (702) are corresponding to each other and are open at the front, rear and top. The lifting plate (701) is arranged horizontally between the mating notches (702) at the front and rear positions. The mating relationship between the lifting plate (701) and the mating notch (702) is a vertical clearance fit, and the outer end of the lifting plate (701) extends out of the corresponding mating notch (702).

9. A printed circuit board with a high-speed signal line wiring structure according to claim 8, characterized in that: The lifting plate (701) is a rectangular strip with curved front and rear ends. The mating notches (702) are all rectangular notches. When the lifting plate (701) descends to the bottom surface and contacts the bottom of the mating notch (702), the top surface of the lifting plate (701) is not higher than the bottom of the positioning slot (602).

10. A printed circuit board with a high-speed signal line wiring structure according to claim 8 or 9, characterized in that: The lifting plate (701) has a guide hole (703) vertically opened in the middle. The bottom plate (5) has a guide rod (704) vertically fixed in the middle of its top surface. The guide rod (704) passes through the guide hole (703) in a vertical sliding fit. The top of the guide rod (704) is coaxially fitted with an anti-detachment cap (705) by a threaded fit. The top surface of the anti-detachment cap (705) is lower than the top of the connecting sleeve (4).

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