Computer mainboard capable of resisting interference and shielding

Abstract

The anti-interference shielding computer mainboard comprises a board body, a shielding cage is arranged on the board body, the shielding cage is of a grid structure, an opening is formed in the lower end of the shielding cage, meanwhile, supporting legs are arranged at the lower end of the shielding cage, a bottom frame is arranged at the opening of the shielding cage, the bottom frame is of a rectangular structure, and the supporting legs are arranged on the bottom frame. The bottom frame is detachably arranged on supporting legs of the shielding cage in a sleeving mode, and in addition, the bottom frame is detachably arranged on the outer side of the plate body. According to the computer mainboard, the shielding cage is arranged, under the action of the shielding cage, the external influence resisting capacity of all elements on the computer mainboard can be enhanced, electromagnetic interference is reduced, the requirement that the computer mainboard needs to stably operate in a complex electromagnetic environment is met, and the accuracy and high efficiency of large-scale data processing are guaranteed.

Description

Technical Field

[0001] The invention relates to the field of mainboards, in particular to a computer mainboard capable of anti-interference shielding. Background Art

[0002] Computers used in daily life and office are equipped with a motherboard for carrying memory sticks, chips, etc.

[0003] In modern computing environments, computer motherboards are faced with a variety of electromagnetic interference sources. On the one hand, there are many sources of electromagnetic interference in the external environment, such as radio waves, electromagnetic radiation from nearby electronic devices (such as televisions, microwave ovens, mobile phone base stations, etc.). The electromagnetic fields generated by these external interference sources may couple into the circuits and lines of the computer motherboard. For example, the high-frequency electromagnetic waves generated by a microwave oven when working may affect the normal operation of sensitive circuits on the motherboard if the motherboard does not have effective anti-interference measures.

[0004] With the development of computer technology, the data transmission speed on the motherboard is constantly increasing. High-speed signals (such as high-speed data bus signals between CPU and memory, PCI-Express interface signals, etc.) are very sensitive to interference during transmission. Even a small interference may cause signal waveform distortion, thereby affecting the integrity of the signal. For example, in high-speed digital signal transmission, due to the short rise time and fall time of the signal, interference may cause signal overshoot, undershoot, ringing and other phenomena, which will increase the bit error rate of the signal and affect the correct transmission of data.

[0005] At the same time, analog signals (such as audio signals, sensor signals, etc.) are also easily interfered by high-frequency noise generated by digital circuits on the motherboard. Since the amplitude and phase of analog signals carry information, interference will cause information distortion. For example, the audio circuit on the motherboard may produce noise or distortion in the audio output due to interference from other digital circuits. Summary of the invention

[0006] The purpose of the present invention is to provide a computer mainboard with anti-interference shielding, aiming to improve the problem that the computer mainboard is easily affected by the outside world during operation.

[0007] The present invention is implemented as follows: a computer motherboard with anti-interference shielding includes a board body, a shielding cage is arranged on the board body, the shielding cage is arranged as a grid structure, and the lower end is arranged as an opening, and the lower end is arranged with legs, and a bottom frame is arranged at the opening of the shielding cage, the bottom frame is arranged as a rectangular structure, and can be detachably mounted on the legs of the shielding cage, and in addition, the bottom frame can be detachably arranged on the outer side of the board body.

[0008] Preferably, the bottom frame includes two splicing plates, both of the two splicing plates are arranged in a U-shaped structure and symmetrically arranged. Connecting plates are arranged at the ends of the two splicing plates close to each other, and adjacent connecting plates are connected by bolts.

[0009] Preferably, ear plates are fixedly arranged at the edges of the plate body. The height of the ear plates is less than the height of the plate body, and the upper side surfaces of the ear plates are flush with the upper side surface of the plate body. Grooves are arranged on the upper side surface of the splicing plate, and the ear plates extend into the grooves.

[0010] Preferably, a plurality of pipe bodies are fixedly arranged on the upper side surface of the splicing plate. The plurality of pipe bodies are arranged in one-to-one correspondence with the shielding cages, and the legs of the shielding cages are inserted into the pipe bodies.

[0011] Preferably, a bottom pipe is also fixedly arranged on the upper side surface of the splicing plate. A nut is threadedly sleeved on the upper end of the bottom pipe, and a plurality of deformation plates are fixedly arranged above the bottom pipe. The outer side surfaces of the plurality of deformation plates are spliced to form a conical table surface. The legs of the shielding cages are inserted into the bottom pipe, and the nut presses the deformation plates to clamp the legs.

[0012] Preferably, the shielding cage includes a first half cage member and a second half cage member. The first half cage member and the second half cage member are both half of the shielding cage and are symmetrically arranged. A plug rod and a plug slot are respectively arranged on the side surfaces of the first half cage member and the second half cage member close to each other, and the plug rod is inserted into the plug slot.

[0013] Preferably, a plurality of buckle members are arranged at the contact position of the first half cage member and the second half cage member. The buckle members include a clamping plate and two end plates. The clamping plate is arranged as an arc plate with a central angle greater than 180°, and is sleeved on the first half cage member and the second half cage member. The two end plates are symmetrically installed on the back side of the clamping plate.

[0014] Preferably, the shielding cage includes a plurality of first shielding strips and second shielding strips. The first shielding strips and the second shielding strips are perpendicular to each other and are arranged vertically and horizontally. The plurality of first shielding strips and second shielding strips are uniformly distributed along different straight lines respectively.

[0015] Preferably, the shielding cage further includes a connecting mechanism. The connecting mechanism includes a support plate and a plurality of connecting columns. The support plate is arranged on the center line of the included angle between the first shielding strip and the second shielding strip and is connected to the bottom frame. The connecting columns are adjustably sleeved on the support plate. A first embedding groove and a second embedding groove are vertically arranged on the top surface of the connecting columns. The bottom size of the first embedding groove and the second embedding groove is larger than the top size, and the bottoms of the first embedding groove and the second embedding groove are arranged at different heights.

[0016] Preferably, a notch is arranged on the bottom surface of the connecting column. A buckle column is arranged on the side wall of the notch. An installation groove is arranged on the horizontal section of the support plate. A movable plate is arranged at the installation groove, and a screw rod is threadedly penetrated through the side wall. The end of the screw rod presses against the movable plate. The connecting column is sleeved on the horizontal section of the support plate, and the buckle column is located on the buckle groove of the support plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention provides a shielding cage, which can enhance the ability of various components on the computer mainboard to resist external influences, reduce electromagnetic interference, and meet the needs of the computer mainboard to operate stably in a complex electromagnetic environment to ensure the accuracy and efficiency of large-scale data processing.

[0019] 2. The present invention provides a bottom frame, and a tube body is provided on the bottom frame, and the legs of the shielding cage can be inserted into the tube body to provide support for the stable installation of the shielding cage relative to the bottom frame. In addition, a bottom tube, a deformation plate and a nut are provided on the bottom frame. By rotating the nut, the multiple deformation plates can be controlled to shrink, thereby clamping the shielding cage legs inserted into the bottom tube, so that the shielding cage can be stably installed.

[0020] 3. The shielding cage of the present invention is configured as a detachable first half cage member and a second half cage member, or as a detachable first shielding strip and a second shielding strip, so that the size of the shielding cage can be adjusted according to transportation requirements, thereby avoiding the shielding cage being inconvenient to transport due to its large size, or being easily damaged during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the plate body of the present invention;

[0023] Figure 3 is a first schematic diagram of the shielding cage and bottom frame structure of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the bottom frame of the present invention;

[0025] Figure 5 It is a structural schematic diagram of a part of the bottom frame of the present invention;

[0026] Figure 6 is a second schematic diagram of the shielding cage and bottom frame structure of the present invention;

[0027] Figure 7 is a first schematic diagram of the shielding cage structure of the present invention;

[0028] Figure 8 It is a structural schematic diagram of the buckle of the present invention;

[0029] Fig. 9 is a third schematic diagram of the shielding cage and bottom frame structure of the present invention;

[0030] Fig.10 It is a structural schematic diagram of the connection mechanism of the present invention;

[0031] Fig.11 It is a structural schematic diagram of the connecting column of the present invention;

[0032] Fig.12 It is a structural schematic diagram of the support plate of the present invention;

[0033] Fig.13 is a second schematic diagram of the shielding cage structure of the present invention;

[0034] Fig.14 It is a schematic diagram of the inner structure of the plate body of the present invention.

[0035] In the figure: 1. plate body; 11. ear plate; 12. surrounding space; 13. protection circuit module; 14. interference guide line; 15. interference signal line; 16. solder mask window; 17. diode; 18. connecting line; 2. shielding cage; 21. first half cage; 22. second half cage; 23. plug-in rod; 24. first shielding strip; 25. second shielding strip; 3. bottom frame; 31. splicing plate; 32. tube body; 33. groove; 34. connecting plate; 35. bottom tube; 36. deformation plate; 37. nut; 4. snap-fit ​​member; 41. end plate; 42. clamping plate; 5. connecting mechanism; 51. connecting column; 511. first embedded groove; 512. second embedded groove; 513. snap-fit ​​column; 52. support plate; 521. mounting groove; 522. threaded hole; 523. screw; 524. movable plate; 53. snap-fit ​​groove. DETAILED DESCRIPTION

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0038] Example 1

[0039] In order to improve the ability of the computer motherboard to resist external influences, this embodiment provides a new technical solution, which is obtained on the basis of the existing computer motherboard. Specifically, a shielding cage 2 is provided on the existing computer motherboard (hereinafter referred to as the board body 1), and the shielding cage 2 is connected to the ground wire. The shielding cage 2 is similar to the flange cage, and shields the components on the board body 1 to reduce electromagnetic interference, etc. The specific technical solution is shown below.

[0040] like Figure 1 , Figure 2 As shown, before introducing the shielding cage 2, a brief introduction to the existing board 1 is given first. It is a printed circuit board (PCB) integrated with various electronic components, circuits, slots, etc., providing electrical connections and physical support for other hardware components of the computer (such as CPU, memory, hard disk, graphics card, etc.), enabling them to work together to achieve various functions of the computer, such as data processing, storage, input / output, etc.

[0041] As Figure 1 , Figure 2 , Figure 3 As shown, the shielding cage 2 is set as a metal grid structure, and the lower end is set as an opening. At the same time, the board 1 is installed on the metal surface of the computer main body case. To facilitate the installation of the shielding cage 2 on the outside of the board 1, multiple legs are provided at the lower end of the shielding cage 2. A bottom frame 3 is provided at the opening of the shielding cage 2. The bottom frame 3 is set as a rectangular structure and is detachably sleeved on the legs of the shielding cage 2. In addition, the bottom frame 3 is detachably provided on the outside of the board 1. Therefore, under the action of the bottom frame 3, the shielding cage 2 can be stably installed on the outside of the board 1, and at the same time, it provides convenience for detaching the shielding cage 2 according to requirements.

[0042] As Figure 4 shown, to achieve the stable installation and facilitate the disassembly of the shielding cage 2, the bottom frame 3 includes two splicing plates 31. Both splicing plates 31 are set as U-shaped structures and are symmetrically arranged. Therefore, the closed bottom frame 3 can be formed by the cooperation of the two splicing plates 31. Connecting plates 34 are provided at the adjacent ends of the two splicing plates 31, and adjacent connecting plates 34 are connected by bolts to realize the stable connection of the two splicing plates 31, and then the bottom frame 3 is stably sleeved on the outside of the board 1.

[0043] As Figure 2 , Figure 4 shown, to increase the stability of the installation of the bottom frame 3, ear plates 11 are fixedly provided at the edge of the board 1. The height of the ear plates 11 is less than the height of the board 1, and the upper side is flush with the upper side of the board 1. Grooves 33 are provided on the upper side of the splicing plates 31. The size of the grooves 33 is larger than the size of the ear plates 11. Therefore, when the two splicing plates 31 are installed on the outside of the board 1, the two splicing plates 31 are moved from a distance from the board 1 to the side plate of the board 1, and the ear plates 11 extend into the grooves 33. This setting can make the splicing plates 31 stably installed on the outside of the board 1 and increase the resistance to the relative movement and detachment of the splicing plates 31 from the board 1.

[0044] As Figure 3 , Figure 4 , Figure 5As shown, in order to install the shielding cage 2 on the bottom frame 3, a plurality of tube bodies 32 are fixedly arranged on the upper side of the splicing plate 31, and the plurality of tube bodies 32 are directly opposite to the shielding cage 2. When the shielding cage 2 is installed on the bottom frame 3, the shielding cage 2 is lowered from the top until the legs of the shielding cage 2 are inserted into the tube bodies 32. In order to stably install the shielding cage 2 on the bottom frame 3, a bottom tube 35 is also fixedly arranged on the upper side of the splicing plate 31, and a nut 37 is threadedly sleeved on the upper end of the bottom tube 35. In addition, a plurality of deformation plates 36 are fixedly arranged above the bottom tube 35, and the outer sides of the plurality of deformation plates 36 are spliced ​​to form a frustum. After the legs of the shielding cage 2 are inserted into the bottom tube 35, the nut 37 is rotated to make it rise. During the rising process of the nut 37, the deformation plates 36 are squeezed, so that the plurality of deformation plates 36 shrink and clamp the legs of the shielding cage 2, thereby limiting the stable installation of the shielding cage 2.

[0045] like Figure 6 , Figure 7 As shown, in order to facilitate the transportation of the device, the shielding cage 2 can be set as a disassembly structure, for example, the shielding cage 2 includes a first half cage member 21 and a second half cage member 22, the first half cage member 21 and the second half cage member 22 are both halves of the shielding cage 2, and are symmetrically arranged. An insertion rod 23 and a slot are respectively arranged on the side surfaces of the first half cage member 21 and the second half cage member 22 that are close to each other. Before the shielding cage 2 is installed on the bottom frame 3, the first half cage member 21 and the second half cage member 22 are firstly connected in a close relationship, and the insertion rod 23 is inserted into the slot to prevent the first half cage member 21 and the second half cage member 22 from relative movement and misalignment.

[0046] like Figure 6 , Figure 8 As shown, in order to make the first half cage 21 and the second half cage 22 more stably connected, a plurality of snap fasteners 4 are sleeved at the contacting part of the first half cage 21 and the second half cage 22. The snap fastener 4 includes a clamping plate 42 and two end plates 41. The clamping plate 42 is configured as an arc plate with a central angle greater than 180°. The two end plates 41 are symmetrically mounted on the back side of the clamping plate 42. Therefore, the opening size of the clamping plate 42 can be changed by holding the two end plates 41 to bring them closer to each other, so as to facilitate the sleeve of the clamping plate 42 on the first half cage 21 and the second half cage 22. Then, under the action of the clamping plate 42, the first half cage 21 and the second half cage 22 are stably connected.

[0047] Example 2

[0048] like Fig. 9 , Fig.13As shown, on the basis of Embodiment 1, in order to facilitate the transportation of the device, the shielding cage 2 can be set as a detachable structure. For example, the shielding cage 2 includes a plurality of first shielding bars 24 and second shielding bars 25, which replace the first half-cage member 21 and the second half-cage member 22. The first shielding bars 24 and the second shielding bars 25 are perpendicular to each other and arranged vertically. The plurality of first shielding bars 24 and second shielding bars 25 are evenly distributed along different straight lines, and thus a shielding cage 2 with a grid structure is formed under the cooperation of the first shielding bars 24 and the second shielding bars 25. When the shielding cage 2 needs to be transported, the plurality of first shielding bars 24 and second shielding bars 25 can be bundled together, thereby reducing the size of the shielding cage 2 during transportation.

[0049] As Fig. 9 , Fig.10 , Fig.11 As shown, in order to stably connect the plurality of first shielding bars 24 and second shielding bars 25, the shielding cage 2 further includes a connecting mechanism 5. The connecting mechanism 5 includes a support plate 52 and a plurality of connecting columns 51. The support plate 52 is set as a U-shaped structure and is arranged on the midline of the angle between the first shielding bar 24 and the second shielding bar 25. At the same time, the bottom of the support plate 52 is connected to the bottom frame 3 by bolts. Therefore, the support plate 52 is stably installed relative to the bottom frame 3 and can span all the first shielding bars 24 and second shielding bars 25. The connecting column 51 is sleeved on the support plate 52, and a first embedding groove 511 and a second embedding groove 512 are vertically arranged on its top surface. The tops of the first embedding groove 511 and the second embedding groove 512 are both open, and the bottom size is larger than the top size. When the first shielding bar 24 and the second shielding bar 25 respectively penetrate through the first embedding groove 511 and the second embedding groove 512, the structural characteristics of the embedding groove are used to stably install the first shielding bar 24 and the second shielding bar 25 relative to the connecting column 51, thereby realizing the stable connection of the first shielding bar 24 and the second shielding bar 25. In addition, the bottoms of the first embedding groove 511 and the second embedding groove 512 are arranged at different heights, which can realize the vertical distribution of the first shielding bar 24 and the second shielding bar 25.

[0050] As Fig.12As shown, in order to enable the connecting column 51 to be stably installed relative to the support plate 52 when the first shielding strip 24 and the second shielding strip 25 are passed through the connecting column 51. A notch is provided on the bottom surface of the connecting column 51, and a snap column 513 is provided on the side wall of the notch. A mounting groove 521 is provided on the horizontal section of the support plate 52, and a movable plate 524 is provided at the mounting groove 521, and a threaded hole 522 is provided on the side wall, and a screw 523 is threadedly provided at the threaded hole 522. The connecting column 51 is sleeved on the support plate 52, and the movable plate 524 and the support plate 52 are also simultaneously passed through the notch. A snap groove 53 is provided on the side walls of the movable plate 524 and the support plate 52, so the snap column 513 is located in the snap groove 53. When the connecting column 51 is connected to the shielding strip, use a multi-angle wrench to rotate the screw 523 so that the end of the screw 523 presses against the movable plate 524, and the movable plate 524 presses against the connecting column 51, increasing the resistance of the connecting column 51 to the movement of the supporting plate 52, thereby achieving stable installation of the connecting column 51.

[0051] Example 3

[0052] like Fig.14 As shown, on the basis of the above embodiment, in order to improve the anti-interference ability of the board 1, a protection circuit module 13, an interference guide line 14, and a diode 17 are arranged on the board 1. The protection circuit module 13 is an integrated circuit chip. The protection circuit module 13 is connected to a signal line 15 susceptible to interference. The interference guide line 14 is arranged in an area susceptible to interference of the board 1. The area susceptible to interference is generally an area with low impedance. The high-frequency components of digital signals are easily radiated in the form of undesirable electromagnetic fields through different conductors on the board 1. These electromagnetic fields are also called electromagnetic interference (EMI). High-frequency circuits will generate a large amount of electromagnetic interference, which propagates along the path with the least impedance, that is, the interference source will propagate along the interference guide line 14. The front end of the interference guide line 14 is connected to the end of the interference guide line 14 to form a closed enclosed space 12. The protection circuit module 13 and the signal line 15 susceptible to interference are located in the enclosed space 12. The interference guide line 14 is connected to the positive electrode of the diode 17 through the connecting line 18, and the negative electrode of the diode 17 is connected to the power ground through the connecting line 18. At least one solder resist window 16 is provided on the interference guide line 14. The solder resist window 16 is filled with solder. The direction of the solder resist window 16 is consistent with the direction of the interference guide line 14. Its function is to provide a path to lead the interference signal to the position of the solder resist window 16, thereby controlling the introduction path of the interference signal and avoiding the interference signal from being introduced into the signal line 15 that is susceptible to interference. The cross-section of the solder resist window 16 is square, circular or elliptical. The more the number of solder resist windows 16, the stronger the anti-interference ability. When a plurality of solder resist windows 16 are provided on an interference guide line 14, the plurality of solder resist windows 16 are arranged at equal intervals to improve the guidance efficiency.

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A computer motherboard with anti-interference shielding, characterized in that: It includes a plate body (1), on which a shielding cage (2) is arranged. The shielding cage (2) is set as a grid structure, and the lower end is set as an opening. At the same time, legs are arranged at the lower end. A bottom frame (3) is arranged at the opening of the shielding cage (2). The bottom frame (3) is set as a rectangular structure and is detachably sleeved on the legs of the shielding cage (2). In addition, the bottom frame (3) is detachably arranged on the outside of the plate body (1).

2. The computer motherboard with anti-interference shielding according to claim 1, characterized in that: The bottom frame (3) includes two splicing plates (31). Both of the two splicing plates (31) are set as U-shaped structures and are symmetrically arranged. Connecting plates (34) are arranged at the adjacent ends of the two splicing plates (31), and adjacent two connecting plates (34) are connected by bolts.

3. The computer motherboard with anti-interference shielding according to claim 2, characterized in that: Lug plates (11) are fixedly arranged at the edge of the plate body (1). The height of the lug plates (11) is less than the height of the plate body (1), and the upper side surfaces are flush with the upper side surface of the plate body (1). Grooves (33) are arranged on the upper side surfaces of the splicing plates (31), and the lug plates (11) extend into the grooves (33).

4. The computer motherboard with anti-interference shielding according to claim 2, characterized in that: A plurality of pipe bodies (32) are fixedly arranged on the upper side surfaces of the splicing plates (31). The plurality of pipe bodies (32) are arranged in one-to-one correspondence with the legs of the shielding cage (2), and the legs of the shielding cage (2) are inserted into the pipe bodies (32).

5. The computer motherboard with anti-interference shielding according to claim 2, characterized in that: A bottom pipe (35) is also fixedly arranged on the upper side surface of the splicing plate (31). A nut (37) is threadedly sleeved on the upper end of the bottom pipe (35), and a plurality of deformation plates (36) are fixedly arranged above the bottom pipe (35). The outer side surfaces of the plurality of deformation plates (36) are spliced to form a conical table surface. The legs of the shielding cage (2) are inserted into the bottom pipe (35), and the nut (37) presses the deformation plates (36) to clamp the legs.

6. The computer motherboard with anti-interference shielding according to claim 1, characterized in that: The shielding cage (2) includes a first half-cage member (21) and a second half-cage member (22). The first half-cage member (21) and the second half-cage member (22) are both half of the shielding cage (2) and are symmetrically arranged. Insertion rods (23) and slots are respectively arranged on the side surfaces of the first half-cage member (21) and the second half-cage member (22) close to each other, and the insertion rods (23) are inserted into the slots.

7. The computer motherboard with anti-interference shielding according to claim 6, characterized in that: A plurality of buckle members (4) are arranged at the contact position of the first half-cage member (21) and the second half-cage member (22). The buckle members (4) include a clamping plate (42) and two end plates (41). The clamping plate (42) is set as an arc plate with a central angle greater than 180°, and is sleeved on the first half-cage member (21) and the second half-cage member (22). The two end plates (41) are symmetrically installed on the back side of the clamping plate (42).

8. The computer motherboard with anti-interference shielding according to claim 1, characterized in that: The shielding cage (2) includes a plurality of first shielding strips (24) and second shielding strips (25). The first shielding strips (24) and the second shielding strips (25) are perpendicular to each other and are arranged vertically and horizontally. The plurality of first shielding strips (24) and second shielding strips (25) are uniformly distributed along different straight lines respectively.

9. The computer motherboard with anti-interference shielding according to claim 8, characterized in that: The shielding cage (2) also includes a connecting mechanism (5), the connecting mechanism (5) includes a support plate (52) and a plurality of connecting columns (51), the support plate (52) is arranged on the midline of the angle between the first shielding strip (24) and the second shielding strip (25), and is connected to the bottom frame (3), the connecting column (51) is adjustably sleeved on the support plate (52), and a first embedding groove (511) and a second embedding groove (512) are vertically arranged on the top surface of the support plate (52), the bottom size of the first embedding groove (511) and the second embedding groove (512) is larger than the top size, and the bottoms of the first embedding groove (511) and the second embedding groove (512) are arranged at different heights.

10. The computer motherboard with anti-interference shielding according to claim 9, characterized in that: The bottom surface of the connecting column (51) is provided with a notch, and a snap-on column (513) is provided on the side wall of the notch. A mounting groove (521) is provided on the horizontal section of the support plate (52), and a movable plate (524) is provided at the mounting groove (521). A screw rod (523) is threadedly provided through the side wall, and the end of the screw rod (523) presses against the movable plate (524). The connecting column (51) is sleeved on the horizontal section of the support plate (52), and the snap-on column (513) is located on the snap-on groove (53) of the support plate (52).

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