A self-cleaning device for industrial control computer motherboards

Abstract

This application relates to a self-cleaning device for an industrial control computer motherboard, comprising an outer casing, a motherboard, and a cleaning cylinder. A wiring port is provided on one side wall of the outer casing, and several dust-blocking strips are provided on the wiring port. The motherboard is fixedly connected to the inner surface of the side wall of the outer casing away from the wiring port. The cleaning cylinder is rotatably fitted around the periphery of the motherboard. A driving device is provided on the motherboard to drive the cleaning cylinder to rotate. A cleaning brush is provided on the inner circumferential surface of the cleaning cylinder, and drainage holes are provided on the periphery of the cleaning cylinder. This application effectively reduces dust and moisture accumulation inside the industrial control computer and improves the cleaning efficiency of the motherboard.

Description

Technical Field

[0001] This application relates to the field of industrial equipment technology, and in particular to a self-cleaning device for an industrial control computer motherboard. Background Technology

[0002] An industrial control computer is a general term for a tool that uses a bus structure to detect and control production processes, electromechanical equipment, and process equipment. Because industrial control computers are widely used in harsh environments with high dust levels, they easily attract large amounts of particulate matter and moisture from the ambient air during use. This leads to the accumulation of a large amount of sticky dust inside the computer, causing localized overheating and resulting in hardware damage.

[0003] In related technologies, the cleaning device for industrial control computers mainly involves the expansion of heat-absorbing materials caused by the heating of the mainboard shell, which in turn pushes the piston to move. This causes the threaded rod to drive the blower to rotate, forcing air into the filter to filter the air and collect dust.

[0004] Regarding the aforementioned technologies, the cleaning device uses the heat from the industrial control computer as a power source to drive the air into the filter for cleaning and collection. In actual operation, in order to protect the hardware of the industrial control computer, a heat dissipation device is usually equipped, which makes the heat transfer of the industrial control computer not obvious, resulting in poor dust removal effect and difficulty in effectively handling the dust and moisture adhering to the industrial control computer. Therefore, it has the defect of low cleaning efficiency. Summary of the Invention

[0005] In order to reduce dust and moisture accumulation inside industrial control computers and improve motherboard cleaning efficiency, this application provides a self-cleaning device for industrial control computer motherboards.

[0006] This application provides a self-cleaning device for an industrial control computer motherboard, which adopts the following technical solution:

[0007] A self-cleaning device for an industrial control computer motherboard includes an outer casing, a motherboard, and a cleaning cylinder. A wiring port is provided on one side wall of the outer casing, and several dust-blocking strips are provided on the wiring port. The motherboard is fixedly connected to the inner surface of the side wall of the outer casing away from the wiring port. The cleaning cylinder is rotatably sleeved on the periphery of the motherboard. A driving device is provided on the motherboard for driving the cleaning cylinder to rotate. A cleaning brush is provided on the inner circumferential surface of the cleaning cylinder, and drainage holes are provided on the periphery of the cleaning cylinder.

[0008] By adopting the above technical solution, when it is necessary to reduce dust inside the industrial control machine, external cables are connected to the motherboard through the wiring port, and a dust-blocking strip is installed on the wiring port. The dust-blocking strip comes into contact with the moisture and dust attached to the cable, which can reduce the amount of dust and moisture that enter the interior of the industrial control machine with the cable. The drive device drives the cleaning cylinder around the motherboard to rotate, and the cleaning brush on the inner circumference of the cleaning cylinder sweeps the dust on the motherboard, so that the dust and moisture mix and adhere to the circumference of the cleaning cylinder. The rotation of the cleaning cylinder generates centrifugal force, which throws the moisture and dust through the drain hole to the outside of the cleaning cylinder, thereby greatly reducing the dust and moisture near the motherboard and improving the motherboard cleaning efficiency.

[0009] Optionally, an internal gear ring is provided on one side of the cleaning cylinder, and the driving device includes a drive motor and a main gear. The output shaft of the drive motor faces the internal gear ring, and the main gear is sleeved on the output shaft of the drive motor and meshes with the internal gear ring.

[0010] By adopting the above technical solution, when the cleaning cylinder needs to rotate, the drive motor rotates, and the output shaft drives the main gear to rotate. The main gear meshes with the internal gear ring to drive the cleaning cylinder to rotate. Through the rapid rotation of the drive motor, the cleaning cylinder can rotate rapidly, generating centrifugal force away from the motherboard, thereby enhancing the sewage discharge power of the cleaning cylinder and improving the cleaning efficiency of the motherboard.

[0011] Optionally, a blower is provided at one end of the main board near the internal gear ring, with the blower's air outlet facing the main board. The drive device also includes a driven gear, which is sleeved on the blower's shaft and meshes with the internal gear ring.

[0012] By adopting the above technical solution, when the cleaning cylinder rotates, the internal gear ring rotates along with the cleaning cylinder. The internal gear ring meshes with the driven gear, which drives the blower to rotate by driving the rotating shaft. This generates airflow that blows towards the main board, creating air resistance on the surface of the main board and blowing water vapor and dust away from the main board. This reduces the amount of water vapor and dust approaching the main board. At the same time, the blower accelerates the airflow around the main board, speeds up the evaporation of water vapor near the main board, keeps the main board dry, and further improves the cleaning efficiency of the main board.

[0013] Optionally, a junction box is provided at one end of the motherboard near the connector, and an external cable passes through the connector and is connected to the junction box. A protective box is fixedly connected at one end of the motherboard near the junction box, and a socket is provided on the side of the protective box near the motherboard. The junction box is inserted into the socket, and a sealing ring is provided around the connection gap between the motherboard and the protective box.

[0014] By adopting the above technical solution, when the cable needs to be connected to the motherboard, the external cable is passed through the connector and connected to the junction box. The protective box is connected to the junction box through the socket, and the cable is wrapped inside the protective box, which isolates the cable from the motherboard and prevents the moisture and dust attached to the cable from directly contacting the motherboard. This reduces the moisture and dust around the motherboard. The sealing ring enhances the sealing of the protective box, further reducing the contact between the moisture and dust inside the protective box and the motherboard.

[0015] Optionally, a filter screen is provided at one end of the cleaning cylinder near the wiring port, and a wire hole is provided on the filter screen. A compressor is provided on the inner wall of the outer casing, and the compressor is used to cool the filter screen.

[0016] By adopting the above technical solution, when the motherboard needs to connect cables, the dust entering the industrial control machine from the connection port with the cables will pass through the filter screen. The filter screen blocks a large amount of dust, thereby reducing the dust that comes into contact with the motherboard. The compressor cools the filter screen, causing water vapor to condense quickly when it passes through the filter screen. This water vapor combines with the dust and condenses into water droplets, which then slide down the surface of the filter screen to the bottom of the outer casing, thereby reducing the amount of dust and water vapor floating inside the industrial control machine.

[0017] Optionally, the side wall of the outer casing is provided with a drain hole, and a cover plate is provided on the side of the drain hole away from the motherboard. One side of the cover plate is hinged to the outer wall of the outer casing, and the cover plate is used to cover the drain hole.

[0018] By adopting the above technical solution, when the industrial control computer needs to be drained, the dust and water vapor accumulated inside the industrial control computer mix to form a sewage flow, which pushes the cover away from the outer wall of the outer casing, causing the drain hole to open. The water flows out from the outer casing through the drain hole, thereby reducing the water vapor and dust inside the industrial control computer and improving the cleaning efficiency of the motherboard.

[0019] Optionally, a diversion sill is provided inside the outer casing, the diversion sill is located at the bottom of the outer casing, and the diversion sill is used to gather the water flow and guide it to the drain hole.

[0020] By adopting the above technical solution, when the industrial control machine needs to be drained, the sewage inside the industrial control machine flows to the top corner of the diversion sill. The diversion sill guides the sewage from both sides of the diversion sill to the bottom sides of the industrial control machine, gathers it near the drain hole, and discharges it through the drain hole, thereby reducing water vapor and dust inside the industrial control machine.

[0021] Optionally, the inner wall of the outer casing is provided with a diversion plate, one side of which is fixedly connected to one side of the wiring port, and the other side of which extends away from the wiring port and is guided to the bottom of the inner wall of the outer casing.

[0022] By adopting the above technical solution, when the cable needs to pass through the junction box, some of the dust and moisture attached to the cable will be adsorbed on the inside of the dust barrier strip when passing through the junction box. This will easily accumulate and slide off onto the inner wall of the outer casing. The drainage plate can quickly guide the water droplets on the inner wall of the outer casing to the bottom of the outer casing, thereby preventing the water droplets from contacting the subsequent cables. This helps to reduce the secondary adhesion of water droplets, and thus reduces the amount of moisture and dust entering the industrial control machine.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. When it is necessary to reduce dust inside the industrial control machine, external cables are passed through the connector and connected to the motherboard. The dustproof strip is installed on the connector. The dustproof strip comes into contact with the moisture and dust on the cable, which can reduce the amount of dust and moisture that enter the industrial control machine with the cable. The drive unit drives the cleaning cylinder around the motherboard to rotate. The cleaning brush on the inner circumference of the cleaning cylinder sweeps the dust on the motherboard, so that the dust and moisture mix and adhere to the circumference of the cleaning cylinder. The rotation of the cleaning cylinder generates centrifugal force, which throws the moisture and dust through the drain hole to the outside of the cleaning cylinder, thereby greatly reducing the dust and moisture near the motherboard and improving the motherboard cleaning efficiency.

[0025] 2. When the cleaning drum needs to rotate, the drive motor rotates, and the output shaft drives the main gear to rotate. The main gear meshes with the internal gear ring to drive the cleaning drum to rotate. The rapid rotation of the drive motor can make the cleaning drum rotate quickly, generating centrifugal force away from the main board, thereby strengthening the cleaning drum's sewage discharge power and improving the cleaning efficiency of the main board.

[0026] 3. When the cleaning cylinder rotates, the internal gear ring rotates with the cleaning cylinder. The internal gear ring meshes with the driven gear, which drives the blower to rotate by driving the rotating shaft. The blower generates airflow that blows towards the main board, creating air resistance on the surface of the main board and blowing water vapor and dust away from the main board. This reduces the amount of water vapor and dust that approach the main board. At the same time, the blower accelerates the airflow around the main board, speeding up the evaporation of water vapor near the main board, keeping the main board dry, and further improving the cleaning efficiency of the main board.

[0027] 4. When cables need to be connected to the motherboard, pass the external cable through the connector and connect it to the junction box. The protective box is connected to the junction box through the socket, and the cable is wrapped inside the protective box to isolate the cable from the motherboard. This prevents moisture and dust on the cable from directly contacting the motherboard, thereby reducing moisture and dust around the motherboard. The sealing ring further enhances the sealing of the protective box, further reducing the contact between moisture and dust inside the protective box and the motherboard. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the industrial control machine according to an embodiment of this application.

[0029] Figure 2 This is a schematic diagram of the internal structure of the industrial control machine according to an embodiment of this application.

[0030] Figure 3 This is a partial exploded view of an industrial control machine according to an embodiment of this application.

[0031] Explanation of reference numerals in the attached diagram: 1. Outer casing; 11. Wiring port; 111. Dust barrier strip; 12. Drain hole; 121. Cover plate; 13. Mounting plate; 2. Main board; 3. Cleaning cylinder; 31. Drain hole; 32. Cleaning brush; 33. Internal gear ring; 4. Drive unit; 41. Drive motor; 42. Main gear; 43. Driven gear; 5. Blower; 6. Junction box; 61. Protective box; 611. Socket; 62. Sealing ring; 7. Filter screen; 71. Wiring hole; 72. Compressor; 8. Diverter; 9. Drain plate. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0033] This application discloses a self-cleaning device for an industrial control computer motherboard. (Refer to...) Figure 1 and Figure 2The self-cleaning device includes an outer casing 1, a main board 2, and a cleaning cylinder 3. The outer casing 1 is a rectangular box with a wiring port 11 on one side. Several dust-blocking strips 111 are arranged side by side on the wiring port 11. The dust-blocking strips 111 are made of a composite of a high-polymer waterproof and breathable material attached to a fabric. In this embodiment, it is waterproof nylon cloth. In other embodiments, it can be microfiber insulation cotton, waterproof canvas, etc. The dust-blocking strips 111 separate the two sides of the wiring port 11. There are gaps between the several dust-blocking strips 111 that allow cables to pass through. When the cable passes through the industrial control machine, the cable comes into contact with the dust-blocking strips 111 and rubs against them, preventing dust and moisture on the cable from entering the interior of the industrial control machine. A mounting plate 13 is welded to the inner wall of the outer casing 1 on the side away from the wiring port 11. The mounting plate 13 is a long strip of plate, and a motherboard 2 is mounted on the top surface of the mounting plate 13. The motherboard 2 contains various components such as a CPU, memory, and PCB board, and has computing capabilities. External cables are connected to the motherboard 2 to establish communication, thereby controlling external devices. The cleaning cylinder 3 is a hollow tube structure. The cleaning cylinder 3 is fitted around the mounting plate 13 and the motherboard 2 and can rotate around the motherboard 2. A cleaning brush 32 is attached to the inner circumference of the cleaning cylinder 3. Several drainage holes 31 are opened on the circumference of the cleaning cylinder 3. The drainage holes 31 are through holes. An internal toothed ring 33 is integrally formed on the end face of the cleaning cylinder 3 away from the wiring port 11. A drive device 4 is also installed on the mounting plate 13. The drive device 4 includes a drive motor 41, a main gear 42, and a driven gear 43. The drive motor 41 is mounted on the mounting plate 13, and the output shaft of the drive motor 41 faces the internal gear ring 33. The main gear 42 is sleeved on the output shaft of the drive motor 41 and meshes with the internal gear ring 33. When the drive motor 41 rotates, it drives the cleaning cylinder 3 to rotate. The cleaning brush 32 sweeps away the water vapor and dust on the surface of the main board 2 and sweeps the water vapor and dust to the periphery of the cleaning cylinder 3. At the same time, the cleaning cylinder 3 generates centrifugal force away from the main board 2, which accelerates the water vapor and dust in the periphery of the cleaning cylinder 3 to be discharged through the drain hole 31, thereby cleaning the main board 2 and reducing the water vapor and dust around the main board 2.

[0034] When it is necessary to reduce moisture and dust inside the industrial control unit, several external cables are threaded through the gaps of several dust-blocking strips 111 at the connection port 11 and connected to the main board 2, enabling the industrial control unit to establish communication with external devices. The dust-blocking strips 111 initially block moisture and dust adhering to the cables, reducing the amount of moisture and dust entering the industrial control unit. Then, the drive motor 41 rotates, and the main gear 42 meshes with the internal gear ring 33, driving the cleaning cylinder 3 to rotate. The cleaning brushes 32 inside the cleaning cylinder 3 clean the surface of the main board 2, sweeping the moisture and dust to the periphery of the cleaning roller. Then, under the centrifugal force of the cleaning cylinder 3, the moisture and dust are thrown out of the cleaning cylinder 3 through the drain hole 31, thereby reducing the moisture and dust inside the industrial control unit and improving the cleaning efficiency of the main board 2.

[0035] Reference Figure 2A blower 5 is fixedly mounted on the top surface of the mounting plate 13, with the air outlet of the blower 5 facing the main board 2. A driven gear 43 is sleeved on the rotating shaft of the blower 5, and the driven gear 43 meshes with the internal gear ring 33. When the drive motor 41 rotates, the drive motor 41 drives the main gear 42 to rotate, the main gear 42 drives the internal gear ring 33 to rotate, and the internal gear ring 33 drives the driven gear 43 to rotate, driving the blower 5 to rotate and generate airflow, which blows air onto the surface of the main board 2. On the one hand, the blower 5 blows water vapor and dust away from the surface of the main board 2; on the other hand, the blower 5 accelerates the airflow around the main board 2, accelerates the evaporation of water vapor on the surface of the main board 2, keeps the surface of the main board 2 dry, thereby improving the cleaning efficiency of the surface of the main board 2. At the same time, the blower 5 can also enhance the heat dissipation efficiency of the main board 2, further extending the service life of the main board 2.

[0036] Reference Figure 2 and Figure 3 A junction box 6 is fixedly connected to one end of the motherboard 2 near the connector 11. The junction box 6 contains multiple slots (not shown in the diagram) for connecting various cables and plugs. A protective box 61 is detachably connected to one end of the junction box 6 near the connector 11. The protective box 61 is a hollow cuboid structure with an opening on one side near the connector 11. A socket 611 is provided on the side of the protective box 61 near the motherboard 2. The socket 611 fits around the perimeter of the junction box 6. The protective box 61 is connected to the junction box 6. A sealing ring 62 is provided at the connection point. The sealing ring 62 can be a rubber ring or a welding ring. In this embodiment, it is a welding ring. One side of the welding ring is welded to the motherboard 2, and the other side of the welding ring is welded to the protective box 61. The cable is inserted into the protective box 61 from the end near the terminal 11 and connected to the terminal box 6 inside the protective box 61. The protective box 61 separates the cable from the motherboard 2 and retains the moisture and dust brought in by the cable inside the protective box 61, thereby preventing moisture and dust from contacting the motherboard 2, reducing moisture and dust on the surface of the motherboard 2, and improving the cleanliness of the motherboard 2 surface.

[0037] Reference Figure 2 A filter screen 7 is welded to the inner top wall of the outer casing 1. The filter screen 7 is located between the protective box 61 and the wiring port 11. A wire-passing hole 71 is provided at the position where the filter screen 7 is aligned with the wiring port 11, allowing the cable to pass through the filter screen 7. Dust entering from the wiring port 11 is blocked by the filter screen 7 and adsorbed on the surface of the filter screen 7. In addition, a compressor 72 is fixedly connected to one side of the filter screen 7. The filter screen 7 is cooled by the compressor 72, reducing its temperature to below the ambient temperature. In this embodiment, the temperature of the filter screen 7 is set to 5 degrees Celsius. Moisture entering from the wiring port 11 touches the surface of the filter screen 7, quickly condenses with the dust into water droplets, adheres to the filter screen 7, and slides down the filter screen 7 to the bottom of the outer casing 1 under the action of gravity, thereby reducing the moisture content near the motherboard 2 and improving the cleaning efficiency of the motherboard 2.

[0038] Reference Figure 2 A flow guide plate 9 is fixedly connected to the inner wall of the outer casing 1. One side of the flow guide plate 9 is welded to the lower edge of the wiring port 11, while the other side of the flow guide plate 9 is inclined towards the bottom away from the wiring port 11, guiding the water flow to the bottom of the outer casing 1. When the cable passes through the gap of the dust barrier strip 111, water vapor and dust easily come into contact with the dust barrier strip 111, are adsorbed and accumulate on the inner surface of the dust barrier strip 111, and slide down to the lower edge of the wiring port 11, and are guided to the bottom of the industrial control machine through the flow guide plate 9.

[0039] Reference Figure 1 and Figure 2 Furthermore, the bottom sidewall of the outer casing 1 is provided with several drain holes 12. In this embodiment, drain holes 12 are provided on both sides of the outer casing 1 adjacent to the wiring port 11. In other embodiments, the drain holes 12 can be located on any sidewall of the outer casing 1. In addition, a cover plate 121 is rotatably connected to the outer sidewall of the outer casing 1. The cover plate 121 is located at the drain holes 12. One side of the cover plate 121 is hinged to the top of the drain hole 12, and the other side of the cover plate 121 is a movable end that fits against the outer wall of the outer casing 1 below the drain hole 12. When sewage flows down to the bottom of the industrial control machine, the sewage pushes the movable end of the cover plate 121 away from the outer wall of the outer casing 1, causing the drain holes 12 to open. Water in the outer casing 1 is discharged outward through the drain holes 12, reducing water vapor and dust in the industrial control machine, thereby improving the cleaning efficiency of the main board 2.

[0040] Reference Figure 2 Furthermore, a diversion sill 8 is fixedly installed on the bottom inner surface of the outer casing 1. The diversion sill 8 is a long strip with a triangular cross-section, and its two inclined surfaces face the drain holes 12 on both side walls. Wastewater introduced through the cleaning cylinder 3, filter screen 7, and diversion plate 9 falls onto the top corner of the diversion sill 8, diverts to the side walls, and is guided to the drain holes 12 to accumulate, increasing the liquid pressure near the drain holes 12, making it easier to push the cover plate 121, thereby facilitating the discharge of wastewater from the industrial control machine.

[0041] The implementation principle of the self-cleaning device for an industrial control computer motherboard in this application embodiment is as follows: When it is necessary to reduce moisture and dust inside the industrial control computer, the cable passes through the gaps of several dust-blocking strips 111 into the wiring port 11 and connects to the junction box 6 of the motherboard 2. The moisture and dust in the environment attached to the cable are initially blocked by the dust-blocking strips 111. Some of them are blocked on the outside of the industrial control computer, and some are adsorbed on the inner surface of the dust-blocking strips 111 and enter the bottom of the outer casing 1 along the guide plate 9. At the same time, the dust and moisture that enter the wiring port 11 with the cable are filtered by the refrigerated filter screen 7, and a large amount of dust and moisture condenses into water droplets and falls to the bottom of the industrial control computer. Then, with Moisture and dust entering through the cables are sealed and trapped by the protective box 61, preventing them from contacting the motherboard 2 and thus avoiding dust and moisture near the motherboard 2. Moisture and dust near the motherboard 2 are then driven by the drive motor 41 to rotate around the motherboard 2 via the main gear 42. The cleaning brush 32 of the cleaning cylinder 3 cleans the dust and centrifugally throws it through the drain hole 31 onto the inner wall of the industrial control machine outer casing 1, where it slides freely to the bottom. Furthermore, the drive motor 41 also drives the blower 5 via the gear 43 to generate airflow, keeping the surface of the motherboard 2 clean and dry, further reducing moisture and dust inside the industrial control machine and improving the cleaning efficiency of the motherboard 2.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A self-cleaning device for an industrial control computer motherboard, characterized in that: The device includes an outer casing (1), a main board (2), and a cleaning tube (3). A wiring port (11) is provided on one side wall of the outer casing (1). Several dust-blocking strips (111) are provided on the wiring port (11). The main board (2) is fixedly connected to the inner surface of the side wall of the outer casing (1) away from the wiring port (11). The cleaning tube (3) is rotatably sleeved on the periphery of the main board (2). A driving device (4) is provided on the main board (2). The driving device (4) is used to drive the cleaning tube (3) to rotate. A cleaning brush (32) is provided on the inner circumferential surface of the cleaning tube (3). A drain hole (31) is provided on the periphery of the cleaning tube (3). An internal gear ring (33) is provided on one side of the cleaning cylinder (3). The driving device (4) includes a drive motor (41) and a main gear (42). The output shaft of the drive motor (41) faces the internal gear ring (33). The main gear (42) is sleeved on the output shaft of the drive motor (41) and meshes with the internal gear ring (33). A blower (5) is provided at one end of the main board (2) near the internal gear ring (33). The air outlet of the blower (5) faces the main board (2). The drive device (4) also includes a driven gear (43). The driven gear (43) is sleeved on the rotating shaft of the blower (5). The driven gear (43) meshes with the internal gear ring (33). When the drive motor (41) rotates, it drives the main gear (42) to rotate. The main gear (42) drives the internal gear ring (33) to rotate. The internal gear ring (33) then drives the driven gear (43) to rotate, driving the blower (5) to rotate and generate airflow to blow air onto the surface of the main board (2). A filter screen (7) is provided at one end of the cleaning cylinder (3) near the wiring port (11). A wire hole (71) is provided on the filter screen (7). A compressor (72) is provided on the inner wall of the outer casing (1). The compressor (72) is used to cool the filter screen (7).

2. The self-cleaning device for an industrial control computer motherboard according to claim 1, characterized in that: A junction box (6) is provided at one end of the main board (2) near the wiring port (11). An external cable passes through the wiring port (11) and is connected to the junction box (6). A protective box (61) is fixedly connected at one end of the main board (2) near the junction box (6). A socket (611) is provided on the side of the protective box (61) near the main board (2). The junction box (6) is inserted into the socket (611). A sealing ring (62) is provided around the connection gap between the main board (2) and the protective box (61).

3. The self-cleaning device for an industrial control computer motherboard according to claim 1, characterized in that: The outer casing (1) has a drain hole (12) on its side wall. A cover plate (121) is provided on the side of the drain hole (12) away from the main board (2). One side of the cover plate (121) is hinged to the outer wall of the outer casing (1). The cover plate (121) is used to cover the drain hole (12).

4. The self-cleaning device for an industrial control computer motherboard according to claim 3, characterized in that: The outer casing (1) is provided with a diversion sill (8), which is located at the bottom of the outer casing (1). The diversion sill (8) is used to gather the water flow and guide it to the drain hole (12).

5. The self-cleaning device for an industrial control computer motherboard according to claim 1, characterized in that: The inner wall of the outer casing (1) is provided with a flow guide plate (9). One side of the flow guide plate (9) is fixedly connected to one side of the wiring port (11), and the other side of the flow guide plate (9) extends away from the wiring port (11) and is guided to the bottom of the inner wall of the outer casing (1).

Images