A self-cleaning fan

Abstract

This application relates to a self-cleaning fan, belonging to the field of fan technology. It comprises a housing, an air inlet mesh, an air outlet mesh, and an impeller. It also includes a scraper rotatably mounted on the air inlet mesh, the scraper coinciding with one diameter of the air inlet mesh. A flushing assembly is disposed within the housing, adjacent to the air inlet mesh, for flushing the air inlet mesh. The housing is also provided with a vibration assembly for driving the air inlet mesh to intermittently vibrate. This application facilitates cleaning the fan mesh.

Description

Technical Field

[0001] The present application relates to the field of fan technology, and in particular to a self-cleaning fan. Background Art

[0002] A fan is a type of air conditioning appliance whose blades, driven by an electric motor, create airflow, exchanging indoor and outdoor air. Fans are primarily used to remove stale air from indoor spaces and regulate temperature, humidity, and overall comfort. They are widely used in various public buildings and facilities. Fans are typically installed at the ceiling of a room. Over time, dust accumulates on the fan grille, requiring manual cleaning.

[0003] With respect to the above-mentioned related technologies, when cleaning the fan mesh cover, an operator is required to climb to the fan installation location and use tools to clean the fan mesh cover, which is inconvenient to clean the fan mesh cover. Summary of the Invention

[0004] In order to facilitate the cleaning of the fan's mesh cover, the present application provides a self-cleaning fan.

[0005] The self-cleaning fan provided in this application adopts the following technical solution:

[0006] A self-cleaning fan comprises a shell, an air inlet mesh cover, an air outlet mesh cover and an impeller, and also comprises a scraper rod rotatably arranged on the air inlet mesh cover, wherein the scraper rod coincides with one diameter of the air inlet mesh cover, a flushing assembly is arranged in the shell and near the air inlet mesh cover, and the flushing assembly is used to flush the air inlet mesh cover, and a vibration assembly is also arranged on the shell, and the vibration assembly is used to drive the air inlet mesh cover to vibrate intermittently.

[0007] By adopting the above technical solution, the impeller drives the scraper rod to rotate on the air inlet mesh cover when it rotates, and the scraper rod scrapes off the dust attached to the surface of the air inlet mesh cover when it rotates. At the same time, the flushing component flushes the air inlet mesh cover, and the vibration component drives the air inlet mesh cover to vibrate, so that the dust attached to the air inlet mesh cover falls off, thereby facilitating the cleaning of the air inlet mesh cover. At the same time, there is no need for the operator to manually clean the dust on the air inlet mesh cover with tools, which reduces the labor intensity of the operator.

[0008] Optionally, the scraper rod is provided with inclined blades.

[0009] By adopting the above technical solution, fan blades are installed on the scraper rod, so that the scraper rod rotates under the action of the wind force of the fan when the fan is working, thereby achieving the effect of facilitating the scraper rod to rotate.

[0010] Optionally, the scraper rod is provided with bristles on the side facing the air inlet grille.

[0011] By adopting the above technical solution, when the scraper rod rotates, the bristles on the scraper rod brush the surface of the air inlet mesh cover, thereby improving the cleaning effect of dust on the air inlet mesh cover.

[0012] Optionally, a drainage channel is provided inside the shell and at the lower part of the shell, a water collection port is provided on the shell and below the air inlet mesh cover, the water collection port is connected to the drainage channel, a drainage port is provided at the end of the shell facing away from the air inlet mesh cover, and the drainage channel is connected to the drainage port.

[0013] By adopting the above technical solution, after the flushing component flushes the air inlet mesh cover, the flushing water flows down along the air inlet mesh cover and flows into the drainage channel through the water collection port. The waste water is discharged to the outside of the fan along the drainage channel, thereby facilitating the discharge of the flushed waste water to the outside of the fan; at the same time, the waste water flows in the drainage channel, and the flowing waste water will take away part of the heat, thereby playing a role in cooling the fan.

[0014] Optionally, the flushing assembly includes a water pipe and a flushing pipe, the input end of the water pipe is connected to the water supply facility, the flushing pipe is communicated with the water pipe, the flushing pipe is arranged on the air inlet side of the air inlet mesh cover, the flushing pipe is arranged along the circumferential direction of the air inlet mesh cover and is located in the upper half of the air inlet mesh cover, and a plurality of flushing holes for water supply are opened on the flushing pipe facing the air inlet mesh cover.

[0015] By adopting the above technical solution, the flushing water is transported from the water supply facility to the flushing pipe through the water pipe, and the flushing water in the flushing pipe is sprayed out from the flushing hole. The sprayed water flushes the air inlet mesh cover, thereby achieving the effect of facilitating the flushing of the air inlet mesh cover.

[0016] Optionally, the vibration assembly includes a magnetic induction switch, an oscillation tube and a blocking block. The oscillation tube is arranged on the side of the air inlet grille facing away from the flushing pipe. The input end of the oscillation tube is connected with the water supply pipe, and the flushing pipe is connected with the output end of the oscillation tube. The magnetic induction switch is arranged at the connection between the flushing pipe and the oscillation tube. The blocking blocks are provided at both ends of the scraper rod. A magnet is provided on the blocking block. The magnetic induction switch is in a normally open state. When the blocking block moves to be opposite to the magnetic induction switch, the magnetic induction switch is closed.

[0017] By adopting the above technical solution, the oscillation tube is installed on the air inlet mesh cover, the magnetic induction switch is in the normally open state, the water in the oscillation tube is in a flowing state, and when the scraper rod rotates until the blocking blocks at both ends of the scraper rod are opposite to the magnetic induction switch, the magnetic induction switch is closed, and the water flow in the oscillation tube will produce a "water hammer effect", which will generate a pressure on the tube wall, causing the oscillation tube to vibrate, thereby causing the oscillation tube to vibrate intermittently. When the oscillation tube vibrates, it impacts the air inlet mesh cover, causing the dust on the air inlet mesh cover to vibrate and fall off, thereby improving the cleaning effect of the air inlet mesh cover.

[0018] Optionally, a cleaning pipe is provided at the end of the flushing pipe. The cleaning pipe is located in the drainage channel and is provided with a plurality of cleaning ports for water to flow out.

[0019] By adopting the above technical solution, the water in the cleaning pipe is sprayed out through the cleaning port and cleans the drainage channel, which to a certain extent prevents dust in the sewage from settling in the drainage channel and causing blockage of the drainage channel.

[0020] Optionally, the impeller includes a drive motor and blades, and a plurality of the blades are arranged on an output shaft of the drive motor.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. When the impeller rotates, it drives the scraper to rotate on the air inlet mesh cover. When the scraper rotates, it scrapes off the dust attached to the surface of the air inlet mesh cover. At the same time, the flushing component flushes the air inlet mesh cover. At the same time, the vibration component drives the air inlet mesh cover to vibrate, so that the dust attached to the air inlet mesh cover falls off. Therefore, the operator does not need to manually clean the dust on the air inlet mesh cover with tools, and the air inlet mesh cover is easily cleaned.

[0023] 2. After the flushing component flushes the air inlet grille, the flushing water flows down along the air inlet grille and flows into the drainage channel through the water collection port. The wastewater is discharged outside the fan along the drainage channel, making it easier to discharge the flushed wastewater outside the fan. At the same time, the wastewater flows in the drainage channel, taking away some heat and playing a role in cooling the fan.

[0024] 3. The oscillation tube is installed on the air inlet grille. The magnetic induction switch is in the normally open state. The water in the oscillation tube is in a flowing state. When the scraper rod rotates until the blocking blocks at both ends of the scraper rod are directly opposite the magnetic induction switch, the magnetic induction switch is closed. The water flow in the oscillation tube will produce a "water hammer effect", which will generate pressure on the tube wall and cause the oscillation tube to vibrate, thereby causing the oscillation tube to vibrate intermittently. When the oscillation tube vibrates, it impacts the air inlet grille, causing the dust on the air inlet grille to vibrate off, thereby improving the cleaning effect of the air inlet grille.

[0025] 4. A cleaning pipe is provided at the end of the flushing pipe. Wastewater containing dust flows into the drainage channel. The dust in the wastewater may be deposited in the drainage channel and cause blockage of the drainage channel. The water in the cleaning pipe is sprayed out through the cleaning port and cleans the drainage channel, which to a certain extent avoids the dust in the sewage from settling in the drainage channel and causing blockage of the drainage channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural diagram of an embodiment of the present application.

[0027] Figure 2 It is a cross-sectional view used to show the internal structure of the fan in the embodiment of the present application.

[0028] Figure 3 It is a cross-sectional view used to illustrate the structure of the oscillating tube in the embodiment of the present application.

[0029] Description of reference numerals:

[0030] 1. Housing; 11. Drainage channel; 2. Air inlet grille; 3. Air outlet grille; 4. Impeller; 41. Drive motor; 42. Blades; 5. Scraper rod; 51. Fan blades; 52. Bristles; 6. Flushing assembly; 61. Water pipe; 62. Flushing pipe; 7. Vibrating assembly; 71. Magnetic induction switch; 72. Oscillating tube; 73. Blocking block; 12. Water collection port; 13. Drainage port; 8. Cleaning pipe; 81. Cleaning port. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-3 This application is described in further detail.

[0032] The present application discloses a self-cleaning fan. Figure 1 and Figure 2 A self-cleaning blower includes a housing 1, an air inlet grille 2, an air outlet grille 3, and an impeller 4. The housing 1 is a hollow cylinder with openings at both ends. The air inlet grille 2 and the air outlet grille 3 are both circular mesh plates. The air inlet grille 2 is fixedly mounted on the air inlet side of the housing 1, and the air outlet grille 3 is fixedly mounted on the air outlet side of the housing 1. The impeller 4 includes a drive motor 41 and blades 42. The drive motor 41 is fixedly mounted in the center of the housing 1, and a plurality of blades 42 are fixedly mounted on the output shaft of the drive motor 41 at equal intervals. A scraper rod 5 is mounted on the side of the air inlet grille 2 that rotates toward the air inlet. The scraper rod 5 coincides with one of the diameters of the air inlet grille 2, and the rotation point of the scraper rod 5 is directly opposite the center of the circle of the air inlet grille 2. A flushing assembly 6 is installed inside the shell 1 and near the air inlet mesh cover 2. The flushing assembly 6 is used to flush the dust attached to the air inlet mesh cover 2; a vibration assembly 7 is installed inside the shell 1 and near the air inlet mesh cover 2. The vibration assembly 7 impacts the air inlet mesh cover 2 at intervals and drives the air inlet mesh cover 2 to vibrate at intervals.

[0033] When the fan is working, the dust floating in the air will adhere to the air inlet mesh cover 2, driving the scraper rod 5 to rotate, and the scraper rod 5 will scrape off the dust attached to the air inlet mesh cover 2; at the same time, the flushing component 6 flushes the air inlet mesh cover 2 to wash off the dust attached to the air inlet mesh cover 2; the vibration component 7 drives the air inlet mesh cover 2 to vibrate intermittently, so that the dust attached to the air inlet mesh cover 2 is vibrated and falls off; thus, there is no need for workers to climb to the fan installation position and manually clean the air inlet mesh cover 2 of the fan with tools, which facilitates the cleaning of the air inlet mesh cover 2, and multiple components clean the air inlet mesh cover 2 synchronously, thereby improving the cleaning effect of the air inlet mesh cover 2.

[0034] Reference Figure 1 and Figure 2 On the side of the scraper rod 5 facing away from the air inlet mesh cover 2, an inclined fan blade 51 is installed. The length direction of the fan blade 51 is along the length direction of the scraper rod 5. Two fan blades 51 are installed on the scraper rod 5, and the inclination directions of the two fan blades 51 are opposite. When the fan is working, the wind blows through the fan blades 51 on the scraper rod 5, thereby driving the scraper rod 5 to rotate. On the side of the scraper rod 5 facing the air inlet mesh cover 2, the bristles 52 are connected, and the bristles 52 are in conflict with the air inlet mesh cover 2. When the scraper rod 5 rotates, the bristles 52 brush the air inlet mesh cover 2, and at the same time, the bristles 52 will extend into the mesh of the air inlet mesh cover 2, thereby cleaning the inside of the mesh of the air inlet mesh cover 2, making the cleaning effect better.

[0035] Reference Figure 2 and Figure 3 A drainage channel 11 is provided in the shell 1 and located in the lower half of the shell 1. The drainage channel 11 as a whole forms an arc-shaped drainage space in the shell 1. A water collection port 12 is provided on the shell 1 and located below the air inlet grille 2. The water collection port 12 is provided along the lower half of the shell 1 and is connected to the drainage channel 11. A drainage port 13 is provided along the shell 1 on the side of the shell 1 away from the air inlet grille 2 and located in the lower half of the shell 1. The drainage port 13 is connected to the drainage channel 11. Inclined surfaces are provided on the inner wall of the shell 1 and located on both sides of the water collection port 12, so that the inner walls of the air inlet grille in the shell 1 on both sides are inclined toward the water collection port 12, making it easier for water to be collected in the water collection port 12. After the flushing component 6 flushes the air inlet grille 2, the flushed sewage containing dust flows into the water collection port 12 along the air inlet grille 2, and the wastewater flows along the drainage channel 11 and is discharged to the outside of the shell 1 through the drainage port 13. When the wastewater flows in the drainage channel 11 , it takes away the heat of the housing 1 , thereby achieving the effect of cooling the fan.

[0036] Reference Figure 1 and Figure 2The flushing assembly 6 includes a water pipe 61 and a flushing pipe 62. The input end of the water pipe 61 is connected to an external water supply facility, which can be a tap water pipeline or a pump room. The output end of the water pipe 61 extends into the housing 1 and is connected to the flushing pipe 62. The flushing pipe 62 is installed on the side of the air inlet grille 2 away from the impeller 4, that is, the side of the air inlet grille 2. The flushing pipe 62 is installed in the upper half of the air inlet grille 2 along the circumferential direction of the air inlet grille 2. The flushing pipe 62 is semicircular. A plurality of flushing holes are opened on the flushing pipe 62 toward the air inlet grille 2. The water pipe 61 transports external flushing water to the flushing pipe 62. The water in the flushing pipe 62 is sprayed toward the air inlet grille 2 through the flushing holes to flush the air inlet grille 2.

[0037] Reference Figure 2 and Figure 3 The vibration assembly 7 includes a magnetic induction switch 71, an oscillation tube 72, and a shielding block 73. The oscillation tube 72 is installed on the side of the air inlet mesh cover 2 away from the flushing pipe 62. The oscillation tube 72 fits the air inlet mesh cover 2 but the two are not connected. The input end of the oscillation tube 72 is connected to the water pipe 61, and the output end of the oscillation tube 72 passes through the air inlet mesh cover 2 and is connected to the flushing pipe 62. The magnetic induction switch 71 is installed on the air inlet side of the air inlet mesh cover 2, and the flushing pipe 62 and the oscillation tube 72 are connected through the magnetic induction switch 71. The shielding block 73 is an arc-shaped block. The shielding block 73 is installed at both ends of the scraper rod 5. The sensing end of the magnetic induction switch 71 faces the scraper rod 5. The magnetic induction switch 71 is in a normally open state. When the shielding block 73 rotates to face the magnetic induction switch 71, the magnetic induction switch 71 senses the magnet on the shielding block 73 and disconnects the oscillation tube 72.

[0038] The water in the water supply pipe 61 is transported to the flushing pipe 62 through the oscillation tube 72. As the fan starts, the scraper rod 5 rotates. When the blocking block 73 at the end of the scraper rod 5 rotates to face the magnetic induction switch 71, the magnetic induction switch 71 suddenly closes, and the water flowing freely in the oscillation tube 72 will experience a "water hammer effect." The "water hammer effect" refers to the following: when the valve of a water pipe with a smooth inner wall is suddenly closed, the water flow will exert pressure on the valve and the pipe wall due to inertia. When the valve is suddenly opened, a water hammer effect, called negative water hammer, will also occur. At this time, the water in the oscillation tube 72 will exert pressure on the magnetic induction switch 71 and the oscillation tube 72. This pressure causes the oscillation tube 72 to oscillate. The oscillating oscillation tube 72 will impact the air inlet grille 2 and drive the air inlet grille 2 to vibrate, thereby vibrating and falling off the dust attached to the air inlet grille 2. The blocking block 73 at the end of the scraper rod 5 rotates periodically to face the magnetic induction switch 71, so that the gap of the magnetic induction switch 71 is closed, and then the air inlet grille 2 is intermittently impacted through the oscillation tube 72, causing the air inlet grille 2 to vibrate intermittently.

[0039] Reference Figure 2 and Figure 3 A cleaning pipe 8 is installed at the end of the flushing pipe 62 away from the magnetic induction switch 71. The cleaning pipe 8 extends into the shell 1 and is located in the drainage channel 11. The cleaning pipe 8 is a semi-annular pipe body. The cleaning pipe 8 is located at the end of the drainage channel 11 away from the drain port 13. A plurality of cleaning ports 81 are opened on the cleaning pipe 8. Wastewater with dust flows along the drainage channel 11. The dust in the wastewater may be deposited in the drainage channel 11 and cause the drainage channel 11 to be blocked. The water in the cleaning pipe 8 is sprayed out through the cleaning port 81 and flushes the inside of the drainage channel 11, thereby preventing the dust in the wastewater from being deposited in the drainage channel 11 to a certain extent.

[0040] The implementation principle of a self-cleaning blower in the embodiment of the present application is as follows: when the blower is started, the scraper rod 5 is driven to rotate when the blower blows air, and the scraper rod 5 and the bristles 52 remove the dust on the air inlet mesh cover 2; the cleaning water is transported to the flushing pipe 62 through the water supply pipe 61, and the water is sprayed out from the flushing hole on the flushing pipe 62 and flushes the air inlet mesh cover 2; the scraper rod 5 rotates, and when the blocking block 73 at the end of the scraper rod 5 rotates to face the magnetic induction switch 71, the magnetic induction switch 71 is closed, and the free-flowing water in the oscillation tube 72 generates a pressure on the oscillation tube 72 under the action of the water hammer effect, causing the oscillation tube 72 to oscillate, and the oscillating oscillation tube 72 impacts the air inlet mesh cover 2 and drives the air inlet mesh cover 2 to vibrate, so that the dust attached to the air inlet mesh cover 2 falls off; multiple components clean the air inlet mesh cover 2 at the same time, thereby improving the cleaning effect of the air inlet mesh cover 2.

[0041] Finally, it should be noted that in the description of this application, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0042] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A self-cleaning fan, comprising a housing (1), an air inlet screen (2), an air outlet screen (3) and an impeller (4), characterized in that: The invention also includes a scraper (5) rotatably arranged on the air inlet mesh cover (2), wherein the scraper (5) coincides with one diameter of the air inlet mesh cover (2), a flushing assembly (6) is arranged in the housing (1) and close to the air inlet mesh cover (2), and the flushing assembly (6) is used to flush the air inlet mesh cover (2), and a vibration assembly (7) is also arranged in the housing (1), and the vibration assembly (7) is used to drive the air inlet mesh cover (2) to vibrate intermittently; the flushing assembly (6) includes a water pipe (61) and a flushing pipe (62), the input end of the water pipe (61) is connected to the water supply facility, the flushing pipe (62) is connected to the water pipe (61), the flushing pipe (62) is arranged on the air inlet side of the air inlet mesh cover (2), the flushing pipe (62) is arranged circumferentially on the upper half of the air inlet mesh cover (2), and the flushing pipe (62) is arranged on the upper half of the air inlet mesh cover (2). The vibrating assembly (7) comprises a magnetic induction switch (71), an oscillating tube (72) and a blocking block (73), wherein the oscillating tube (72) is arranged on the side of the air inlet mesh cover (2) away from the flushing tube (62), the input end of the oscillating tube (72) is connected to the water pipe (61), and the flushing tube (62) is connected to the output end of the oscillating tube (72), the magnetic induction switch (71) is arranged at the connection between the flushing tube (62) and the oscillating tube (72), and the blocking blocks (73) are arranged at both ends of the scraper (5), the magnetic induction switch (71) is in a normally open state, and the blocking block (73) is provided with a magnet. When the blocking block (73) moves to be opposite to the magnetic induction switch (71), the magnetic induction switch (71) is closed.

2. A self-cleaning blower according to claim 1, characterized in that: The scraper rod (5) is provided with inclined blades (51).

3. The self-cleaning blower according to claim 1, characterized in that: The scraper rod (5) is provided with bristles (52) on the side facing the air inlet grille (2).

4. The self-cleaning blower according to claim 1, characterized in that: A drainage channel (11) is provided in the housing (1) and at the lower portion of the housing (1); a water collection port (12) is provided on the housing (1) and below the air inlet mesh cover (2); the water collection port (12) is connected to the drainage channel (11); a drainage port (13) is provided at the end of the housing (1) facing away from the air inlet mesh cover (2); the drainage channel (11) is connected to the drainage port (13).

5. The self-cleaning blower according to claim 1, characterized in that: The end of the flushing pipe (62) is connected to a cleaning pipe (8), which is located in the drainage channel (11). The cleaning pipe (8) is provided with a plurality of cleaning ports (81) for water to flow out.

6. The self-cleaning blower according to claim 1, characterized in that: The impeller (4) comprises a driving motor (41) and blades (42), and a plurality of blades (42) are arranged on an output shaft of the driving motor (41).

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