Screen dust removal device, screen dust removal method, apparatus, and computer device

Abstract

The application relates to a filter screen dust removal device, a filter screen dust removal method, a device, computer equipment, a computer readable storage medium and a computer program product. The filter screen dust removal device comprises a dust removal assembly, a motor assembly, a worm assembly, a pressure sensor, a first gear, a second gear and a controller. The first gear and the second gear are engaged with the worm assembly. The motor assembly drives the worm assembly to rotate. The worm assembly drives the filter screen to rotate through the first gear and drives the dust removal assembly to rotate through the second gear, so that the dust removal assembly removes dust from the filter screen during rotation. The dust removal assembly drives air to pass through the filter screen to remove dust from the filter screen. The pressure sensor detects the initial pressure of the dust removal assembly at the starting moment and the operating pressure on the dust removal assembly within a preset time after dust removal. The controller obtains the initial pressure and the operating pressure and determines a filter screen replacement signal based on the pressure change of the operating pressure relative to the initial pressure. The method can improve the dust removal effect.

Description

Technical Field

[0001] This application relates to the field of power equipment technology, and in particular to a filter dust removal device, filter dust removal method, apparatus, computer equipment, computer-readable storage medium, and computer program product. Background Technology

[0002] With the development of the power equipment industry, air purifiers have emerged as a type of electrical device. They can remove or reduce various air pollutants, thereby improving indoor air quality and providing cleaner, safer air. In practical applications, air purifiers generally filter impurities in the air through filters. After long-term use, the air purifier's filters need to be cleaned or replaced; otherwise, the purification effect will be affected.

[0003] Traditional filter dust removal devices typically require two motors to control the rotation of the filter and the filter dust removal assembly separately, so that the filter dust removal assembly can remove dust from the filter. However, the process of two motors controlling the rotation of the filter and the filter dust removal assembly separately will always have a certain rotation error, making it impossible to ensure that the filter and the filter dust removal assembly rotate at the same frequency. This may result in some parts of the filter not being cleaned in time, leading to poor dust removal effect. Summary of the Invention

[0004] Therefore, it is necessary to address the technical problem that traditional technologies cannot guarantee the synchronous rotation of the filter screen and the filter screen dust removal components, and to provide a filter screen dust removal device, filter screen dust removal method, apparatus, computer equipment, computer-readable storage medium, and computer program product.

[0005] In a first aspect, this application provides a filter dust removal device for use in an air purifier. The device includes a dust removal component, a motor component, a worm gear component, a pressure sensor, a first gear, a second gear, and a controller communicatively connected to the motor component, the pressure sensor, and the dust removal component. Both the first gear and the second gear mesh with the worm gear component.

[0006] The motor assembly is used to drive the worm gear assembly to rotate;

[0007] The worm gear assembly is used to drive the filter screen to rotate via the first gear and drive the dust removal assembly to rotate via the second gear, so that the dust removal assembly removes dust from the filter screen during rotation.

[0008] The dust removal component is used to drive air through the filter screen to remove dust from the filter screen;

[0009] The pressure sensor is used to detect the initial pressure of the dust removal component at the start of dust removal, and the operating pressure on the dust removal component within a preset time after dust removal.

[0010] The controller is used to acquire the initial pressure and the operating pressure, and to determine the filter replacement signal based on the pressure change of the operating pressure relative to the initial pressure.

[0011] In one embodiment, the dust removal assembly includes a suction component and a duct assembly;

[0012] The suction component is connected to the pipe assembly;

[0013] The piping assembly is used to channel the airflow generated by the suction element into the filter screen.

[0014] In one embodiment, the pipe assembly includes a pipe body and a pipe housing; the pipe housing surrounds the pipe body.

[0015] In one embodiment, the pipe body includes a plurality of connecting ports arranged in a circumferential direction around the pipe body, and each of the connecting ports is offset from each other in the axial direction of the pipe body.

[0016] The outer shell of the pipe is provided with a blow-suction port;

[0017] The pipe body is rotatable relative to the pipe shell, so that each of the communication ports can be connected to the blow-in / suction port in sequence when the pipe body rotates.

[0018] In one embodiment, the gear tooth ratio of the second gear and the first gear is the same as the area ratio of the blow-in port and the connecting port.

[0019] In one embodiment, the pressure sensor is disposed on the pipe assembly.

[0020] Secondly, this application also provides a method for dust removal using a filter screen, the method comprising:

[0021] The initial pressure on the dust removal assembly is obtained when the motor assembly starts to drive the worm gear assembly to rotate, as detected by the pressure sensor, and the operating pressure on the dust removal assembly within a preset time after the motor assembly drives the worm gear assembly to rotate;

[0022] The filter replacement signal is determined based on the pressure change of the operating pressure relative to the initial pressure.

[0023] In one embodiment, determining the filter replacement signal based on the pressure change of the operating pressure relative to the initial pressure includes:

[0024] Obtain the preset pressure change threshold and the preset saturation pressure;

[0025] If the pressure change of the operating pressure relative to the initial pressure is less than or equal to a preset pressure change threshold, and the initial pressure is greater than or equal to the preset saturation pressure, then the filter replacement signal is determined to be in need of replacement.

[0026] Thirdly, this application also provides a filter dust removal device, the device comprising:

[0027] The operating pressure acquisition module is used to acquire the initial pressure on the dust removal component when the motor component starts to drive the worm gear assembly to rotate, as detected by the pressure sensor, and the operating pressure on the dust removal component within a preset time after the motor component drives the worm gear assembly to rotate.

[0028] The filter replacement signal determination module is used to determine the filter replacement signal based on the pressure change of the operating pressure relative to the initial pressure.

[0029] Fourthly, this application also provides a computer device. The computer device includes a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the steps of the method described above.

[0030] Fifthly, this application also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program thereon, which, when executed by a processor, implements the steps of the method described above.

[0031] Sixthly, this application also provides a computer program product. The computer program product includes a computer program that, when executed by a processor, implements the steps of the method described above.

[0032] Seventhly, this application also provides an air purifier, which includes the filter dust removal device described in any of the above embodiments.

[0033] The aforementioned filter dust removal equipment, applied to air purifiers, is characterized by comprising a dust removal component, a motor component, a worm gear component, a pressure sensor, a first gear, a second gear, and a controller communicatively connected to the motor component, pressure sensor, and dust removal component. Both the first and second gears mesh with the worm gear component. The motor component drives the worm gear component to rotate. The worm gear component, during rotation, drives the filter to rotate via the first gear and, via the second gear, drives the dust removal component to rotate, thus enabling the dust removal component to remove dust from the filter during rotation. The dust removal component drives air through the filter to remove dust. The pressure sensor detects the initial pressure of the dust removal component at the start of dust removal and the operating pressure on the dust removal component within a preset time after dust removal. The controller acquires the initial and operating pressures and determines the filter replacement signal based on the pressure change of the operating pressure relative to the initial pressure. Using this equipment for filter dust removal, with a single motor driving the worm gear to rotate, and the worm gear driving two gears respectively connected to the filter and the dust removal component, ensures that the filter and the dust removal component rotate at the same frequency, saving costs while improving dust removal efficiency. Attached Figure Description

[0034] Figure 1 This is a structural block diagram of a filter dust removal device in one embodiment;

[0035] Figure 2 This is a structural block diagram of a dust removal component in one embodiment;

[0036] Figure 3 This is a structural block diagram of a pipe assembly in one embodiment;

[0037] Figure 4 This is a structural block diagram of a filter dust removal device in another embodiment;

[0038] Figure 5 This is a flowchart of a filter dust removal method in one embodiment;

[0039] Figure 6 A flowchart of a filter dust removal method in another embodiment;

[0040] Figure 7 This is a graph showing the change in pressure value over filter cleaning time in one embodiment;

[0041] Figure 8 This is a flowchart of a filter dust removal method in yet another embodiment;

[0042] Figure 9 Here is a flowchart of a filter dust removal method in another embodiment;

[0043] Figure 10 This is a structural block diagram of a filter dust removal device in one embodiment;

[0044] Figure 11 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0046] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use, and processing of related data must comply with relevant regulations; and the acquisition, storage, processing, and transmission of data all comply with relevant laws and regulations. In the embodiments of this application, certain software, components, models, and other existing solutions in the industry may be mentioned. These should be considered as exemplary, and their purpose is only to illustrate the feasibility of implementing the technical solution of this application, but it does not mean that the applicant has or necessarily used such a solution.

[0047] A filter dust removal device is a cleaning device used to remove suspended particulate matter from the air. It captures and adsorbs dust, smoke, and other fine particles by using different filter media. These devices are widely used in industrial, commercial, and residential environments to improve air quality and protect human health. An air purifier is a household appliance used to remove pollutants from indoor air and improve air quality. It can effectively reduce or eliminate dust, pollen, viruses, bacteria, pet dander, smoke, odors, volatile organic compounds, and other harmful particulate matter in the air. In this application, the filter dust removal device is applied to an air purifier to remove dust from the filter in the air purifier, thereby extending the service life of the air purifier.

[0048] In some embodiments, existing filter dust removal equipment generally requires two motors to control the rotation of the filter and the filter dust removal component separately so that the filter dust removal component can remove dust from the filter. However, in the process of two motors controlling the rotation of the filter and the filter dust removal component separately, there will always be a certain rotation error, which cannot guarantee that the filter and the filter dust removal component rotate at the same frequency. This may result in some parts of the filter not being cleaned in time, resulting in poor dust removal effect.

[0049] Based on this, such as Figure 1As shown, this application provides a filter dust removal device for use in air purifiers. The filter dust removal device includes a dust removal component 10, a motor component 20, a worm gear component 30, a pressure sensor 40, a first gear 50, a second gear 60, and a controller 70 communicatively connected to the motor component 20, the pressure sensor 40, and the dust removal component 10. Both the first gear 50 and the second gear 60 mesh with the worm gear component 30. The motor component 20 drives the worm gear component 30 to rotate. The worm gear component 30, when rotating, drives the filter to rotate via the first gear 50 and drives the dust removal component 10 to rotate via the second gear 60, so that the dust removal component 10 removes dust from the filter during rotation. The dust removal component 10 drives air through the filter to remove dust from the filter. The pressure sensor 40 detects the initial pressure of the dust removal component 10 at the start of dust removal and the operating pressure on the dust removal component 10 within a preset time after dust removal. The controller 70 acquires the initial pressure and the operating pressure and determines a filter replacement signal based on the pressure change of the operating pressure relative to the initial pressure.

[0050] The dust removal component 10 removes dust from the filter screen by driving air through it. For example, when dust is adsorbed on the filter screen, the dust removal component 10 can generate suction force, and the airflow separates the dust from the filter screen.

[0051] In some embodiments, the dust removal assembly 10 includes a suction component 11 and a duct assembly 12, which work together to drive air through the filter screen to remove dust from the filter screen.

[0052] In traditional filter dust removal equipment, the motor assembly 20 generally includes two components: one motor assembly 20 for controlling the rotation of the filter screen and the other motor assembly 20 for controlling the rotation of the filter screen dust removal assembly 10. However, in this application, only one motor assembly 20 is included. The motor assembly 20 drives the worm gear assembly 30 to rotate, thereby driving the filter screen to rotate via the first gear 50 and the dust removal assembly 10 to rotate via the second gear 60. This achieves the process of simultaneously controlling the rotation of the filter screen and the dust removal assembly 10 with only a single motor assembly 20, ensuring the dust removal effect.

[0053] The motor assembly 20 is a device that converts electrical energy into mechanical energy and is widely used in various mechanical devices in industry, commerce, and households. The motor assembly 20 uses electromagnetic force to act on the rotor (rotating part), causing it to rotate or move linearly, thereby driving the mechanical load. In this embodiment, the motor assembly 20 is used to drive the worm gear assembly 30 to rotate. Exemplarily, the motor assembly 20 can be located at either end of the worm gear assembly 30 to facilitate driving the worm gear assembly 30 to rotate. It is understood that the motor assembly 20 can also be located at other parts of the worm gear assembly 30; this is not limited here.

[0054] The worm gear assembly 30 is a mechanical transmission element. Generally, the worm gear assembly 30 is a special type of helical gear, typically used to convert rotary motion into linear motion, or vice versa. In some embodiments, the tooth profile of the worm gear assembly 30 can be an involute, an Archimedean spiral, or other types of curves.

[0055] The pressure sensor 40 is a device that converts input mechanical pressure in a gas or liquid into an electrical output signal. In this application, the pressure sensor 40 is used to detect the initial pressure of the dust removal assembly 10 at the start of dust removal and the operating pressure on the dust removal assembly 10 within a preset time after dust removal.

[0056] The dust removal start time refers to the moment when dust removal begins, at which point the pressure on the dust removal component 10 is at its highest. The initial pressure refers to the pressure on the dust removal component 10 at the initial moment. After long-term use, dust accumulates deep within the filter, making it difficult to separate. The more severe the dust accumulation, the more clogged the air intake on the dust removal component 10 becomes, resulting in higher pressure. Since the filter has the most dust at the start of dust removal, the initial pressure is generally the highest pressure during the dust removal phase. After a preset time following dust removal, the dust on the filter decreases, thus reducing the pressure on the dust removal component 10, and the operating pressure becomes lower than the initial pressure.

[0057] Gears are mechanical components used in mechanical transmissions, transmitting and converting motion and power through the meshing of teeth. Specifically, in this application, the teeth of both the first gear 50 and the second gear 60 mesh with the teeth on the worm gear assembly 30, thereby causing the first gear 50 and the second gear 60 to rotate simultaneously when the worm gear assembly 30 rotates. For example, the number of teeth on the first gear 50 and the second gear 60 can be set according to requirements, and the number of teeth on the gears is not limited in this application.

[0058] The controller 70 is used to control the operation of the entire filter dust removal equipment. The controller 70 is communicatively connected to the motor assembly 20, the pressure sensor 40, and the dust removal assembly 10. When the filter dust removal equipment is running, the controller 70 can directly obtain the initial pressure and the operating pressure, and determine the filter replacement signal based on the pressure change of the operating pressure relative to the initial pressure.

[0059] The pressure changes of the initial pressure and the operating pressure can reflect the degree of dirtiness of the filter, and the filter replacement signal can be determined based on the degree of dirtiness.

[0060] In some embodiments, the controller can determine the filter replacement signal based on the rate of pressure change of the operating pressure relative to the initial pressure. Specifically, this is reflected in the pressure change curve: the steeper the slope of the pressure change relative to the initial pressure, the faster the pressure changes, which means there is less dust in the filter. Conversely, the shallower the slope of the pressure change relative to the initial pressure, the slower the pressure changes, which means there is more dust in the filter.

[0061] In some embodiments, the controller may also determine the filter replacement signal based on the difference between the operating pressure and the initial pressure.

[0062] In a specific embodiment, if the difference between the initial pressure and the operating pressure is less than or equal to the pressure change threshold, it means that during the dust removal process of the dust removal component 10, the dust adheres more firmly to the filter screen, resulting in relatively high dust removal resistance. With the operating parameters of the dust removal component 10 remaining unchanged, this indicates a high degree of dirtiness on the filter screen, meaning that dust removal alone is insufficient to effectively remove the dust. Therefore, the filter screen needs to be replaced. The pressure change threshold can be determined through multiple dust removal tests.

[0063] In another specific embodiment, if the difference between the initial pressure and the operating pressure is greater than the pressure change threshold, it means that the pressure is relatively low during the dust removal process of the dust removal component 10 on the filter screen, which can reflect that the degree of dirt on the filter screen is low. The dust on the filter screen can be effectively removed through dust removal, so there is no need to replace the filter screen and the filter screen can continue to be used.

[0064] Specifically, when the filter dust removal equipment is in use, the motor assembly 20 starts, driving the worm gear assembly 30 to rotate. As the worm gear assembly 30 rotates, it drives the filter to rotate via the first gear 50, and then drives the dust removal assembly 10 to rotate via the second gear 60, thus enabling the dust removal assembly 10 to remove dust from the filter during rotation. During the dust removal process, the pressure sensor 40 detects the initial pressure of the dust removal assembly 10 at the start and the operating pressure on the dust removal assembly 10 within a preset time after dust removal. The controller 70 can obtain the initial and operating pressures from the pressure sensor 40 and determine the filter replacement signal based on the pressure change of the operating pressure relative to the initial pressure.

[0065] The aforementioned filter dust removal equipment, applied to air purifiers, is characterized by comprising a dust removal component 10, a motor component 20, a worm gear component 30, a pressure sensor 40, a first gear 50, a second gear 60, and a controller 70 communicatively connected to the motor component 20, the pressure sensor 40, and the dust removal component 10; both the first gear 50 and the second gear 60 mesh with the worm gear component 30; the motor component 20 drives the worm gear component 30 to rotate; the worm gear component 30, during rotation, drives the filter to rotate via the first gear 50 and drives the dust removal component 10 to rotate via the second gear 60, so that the dust removal component 10 removes dust from the filter during rotation; the dust removal component 10 drives air through the filter to remove dust from the filter; the pressure sensor 40 detects the initial pressure of the dust removal component 10 at the start time and the operating pressure on the dust removal component 10 within a preset time after dust removal; the controller 70 acquires the initial pressure and the operating pressure, and determines the filter replacement signal based on the pressure change of the operating pressure relative to the initial pressure. The above-mentioned equipment is used for filter dust removal. A motor drives the worm gear to rotate, and the worm gear drives two gears that are respectively connected to the filter screen and the dust removal component 10 to rotate. This can strictly ensure that the filter screen and the dust removal component 10 rotate at the same frequency, which can save costs and improve the dust removal effect.

[0066] Since the dust removal assembly 10 is a component used to drive air through the filter screen to remove dust from the filter screen, in order to ensure that the dust removal assembly 10 can drive the air, in some embodiments, such as Figure 2 As shown, the dust removal assembly 10 includes a suction component 11 and a pipe assembly 12; the suction component 11 is connected to the pipe assembly 12; the pipe assembly 12 is used to direct the airflow formed by the suction component 11 into the filter screen.

[0067] The suction component 11 is a device capable of drawing in or sucking in gas or liquid. In some specific embodiments, the suction component 11 can draw in or blow air onto the filter screen, thereby removing contaminants from the filter screen and achieving the effect of cleaning the filter screen. For example, the suction component 11 can be a fan, vacuum pump, etc.

[0068] Pipe assembly 12 is a component that ensures the transport of gas or liquid. Pipe assembly 12 can be cylindrical, rectangular, square, etc., and its shape can be designed based on requirements.

[0069] Specifically, the dust removal component 10 in the filter dust removal equipment includes a suction component 11 and a pipe assembly 12. The suction component 11 is connected to the pipe assembly 12, which is used to guide the airflow generated by the suction component 11 into the filter screen. The controller 70 can control the suction component 11 to start working. During the process of suction, the suction component 11 draws in air and forms an airflow. The airflow passes through the pipe assembly 12 and enters the filter screen, causing dust and pollutants in the filter screen to separate from the filter screen, thereby achieving effective dust removal from the filter screen.

[0070] In this embodiment, the dust removal component 10 is provided with a suction component 11 that can form an airflow and a pipe assembly 12 that can allow the airflow to enter the filter screen, so that the suction component 11 is directly connected to the filter screen through the pipe assembly 12, and the airflow formed by the suction component 11 can be effectively passed into the filter screen.

[0071] In some embodiments, the pipe assembly 12 includes a pipe body 121 and a pipe housing 122; the pipe housing 122 surrounds the pipe body 121.

[0072] The pipe body 121 refers to the main part that constitutes the pipe assembly 12, which includes the pipe itself used to transport fluids (such as gas, liquid, or solid particles) and the fittings directly connected to it. These fittings may include, but are not limited to, elbows, tees, crosses, reducers, flanges, valves, expansion joints, etc. The pipe body 121 is the key part of the pipeline system responsible for fluid transmission, and it is directly related to the safety and functionality of the entire system.

[0073] The pipe casing 122 typically refers to the protective structure that surrounds the pipe assembly 12. For example... Figure 3 As shown, the outer shell 122 of the pipe surrounds the pipe body 121.

[0074] It is understood that the pipe shell 122 surrounds the pipe body 121, and both the pipe shell 122 and the pipe body 121 can rotate independently. That is, the pipe shell 122 can rotate in the same direction as the pipe body 121 or in the opposite direction. In some specific embodiments, a blow-in port 1221 can be opened in the pipe shell 122, and a connecting port 1211 can be arranged in the pipe body 121. When the blow-in port 1221 overlaps with the connecting port 1211, the pipe assembly 12 can release gas through the overlapping part. Through the above method, the volume of gas flow can be controlled, and the dust removal part of the filter screen can be controlled by the change of the overlapping part of the pipe shell 122 and the pipe body 121.

[0075] In this embodiment, the pipe assembly 12 is divided into a pipe body 121 and a pipe shell 122, which can increase the flexibility of the pipe assembly 12 in use, thereby improving the flexibility of filter dust removal.

[0076] In some embodiments, the pipe body 121 includes a plurality of communication ports 1211 arranged in the circumferential direction around the pipe body 121, and each communication port 1211 is staggered from each other in the axial direction of the pipe body 121; the pipe shell 122 is provided with a blow-suction port 1221; wherein the pipe body 121 is rotatable relative to the pipe shell 122, so that each communication port 1211 can be connected to the blow-suction port 1221 in sequence when the pipe body 121 rotates.

[0077] The circumferential direction refers to the 360-degree direction around the pipe body 121. The connecting port 1211 refers to the opening that connects to the outside. The shape of the connecting port 1211 can be rectangular, circular, etc. In this embodiment, the connecting port 1211 is rectangular in the unfolded view of the pipe body 121. Figure 3 As shown in the unfolded view of the pipe body 121, the connecting ports 1211 are staggered relative to each other along the axial direction of the pipe body 121. The pipe shell 122 is provided with a blow-in or suction port 1221, which is an opening for blowing out or sucking in gas. There can be one or more blow-in or suction ports 1221.

[0078] Specifically, such as Figure 3 As shown, the pipe body 121 includes multiple connecting ports 1211 arranged circumferentially around the pipe body 121, and each connecting port 1211 is staggered relative to each other along the axial direction of the pipe body 121. The pipe outer shell 122 has a blow-suction port 1221. The pipe body 121 is rotatable relative to the pipe outer shell 122, so that each connecting port 1211 can sequentially connect with the blow-suction port 1221 when the pipe body 121 rotates. Since the height of each connecting port 1211 is different, corresponding to a different height on the filter screen, each connecting port 1211, when connected to the blow-suction port 1221, can clean the dust on the corresponding position of the filter screen, thereby achieving targeted cleaning of the set position of the filter screen. When the pipe body 121 rotates, the connecting ports 1211 on the pipe body 121 sequentially align with the blow-suction ports 1221 on the pipe outer shell 122, so only a quarter of the opening can draw air at a time, ensuring sufficient suction force to adsorb dust on the filter screen.

[0079] In some embodiments, pressure sensor 40 is disposed on pipe assembly 12.

[0080] like Figure 3 As shown, the pressure sensor 40 is installed on the pipe assembly 12, which can test the pressure of the pipe assembly 12, so as to know the pressure status of the pipe assembly 12 and thus determine the degree of dirtiness of the filter screen.

[0081] In some embodiments, the gear tooth ratio of the second gear 60 and the first gear 50 is the same as the area ratio of the blow-in / suction port 1221 and each connecting port 1211.

[0082] The gear tooth ratio between the second gear 60 and the first gear 50 refers to the numerical ratio between the number of teeth of the second gear 60 and the number of teeth of the first gear 50. For example, if the number of teeth of the second gear 60 is 400 and the number of teeth of the first gear 50 is 100, then the gear tooth ratio between the second gear 60 and the first gear 50 is 4:1.

[0083] Similarly, the area ratio of the blow-in / suck-out port 1221 to each connecting port 1211 refers to the ratio between the area of ​​the blow-in / suck-out port 1221 and the area of ​​each connecting port 1211.

[0084] Specifically, since the first gear 50 is used to drive the filter screen to rotate, and the second gear 60 is used to drive the dust removal assembly 10 to rotate, in order to ensure that the connecting port 1211 of the filter screen and the blowing port 1221 of the dust removal assembly 10 can effectively overlap, the gear tooth ratio of the second gear 60 and the first gear 50 should be set to the same value as the area ratio of the blowing port 1221 and each connecting port 1211. For example, when the gear tooth ratio of the second gear 60 and the first gear 50 is 4:1, when the second gear 60 rotates 1 / 4 turn, the first gear 50 will rotate 1 turn. That is to say, when the dust removal assembly 10 rotates 1 / 4 turn, the filter screen rotates 1 turn. When the dust removal assembly 10 rotates 1 turn, it means that the filter screen has rotated four times. Each rotation of the dust removal assembly 10 removes dust from the corresponding position of the filter screen. When the overlap between the connecting port 1211 and the blowing port 1221 is small, the suction power of the dust removal assembly 10 can be guaranteed.

[0085] In a specific embodiment, such as Figure 4 As shown, the motor assembly 20 drives the worm gear assembly 30 to rotate, thereby driving the filter screen (not shown in the figure) to rotate through the first gear 50, and driving the dust removal assembly (not shown in the figure) to rotate through the second gear 60, so that the dust removal assembly 10 removes dust from the filter screen during the rotation process.

[0086] Based on the same inventive concept, such as Figure 5 As shown, this application also provides a filter dust removal method applied to the above-mentioned filter dust removal equipment. Taking the application of this method to the controller in the above-mentioned filter dust removal equipment as an example, the method includes the following steps:

[0087] S502, acquire the initial pressure on the dust removal assembly when the motor assembly starts to drive the worm gear assembly to rotate, as detected by the pressure sensor, and the operating pressure on the dust removal assembly within a preset time after the motor assembly drives the worm gear assembly to rotate.

[0088] The initial pressure refers to the pressure on the dust removal component at the start. After long-term use, dust accumulates deep within the filter, making it difficult to separate from the filter. The more severe the dust accumulation, the more clogged the air intake on the dust removal component becomes, and the higher the pressure will be. Since the filter has the most dust at the beginning of dust removal, the initial pressure is generally the highest pressure during the dust removal stage. After a preset time, the dust on the filter is reduced, so the pressure on the dust removal component will also decrease, and the operating pressure will be lower than the initial pressure.

[0089] Specifically, the controller acquires the initial pressure on the dust removal component when the motor assembly starts driving the worm gear assembly to rotate, as detected by the pressure sensor, and the operating pressure on the dust removal component within a preset time after the motor assembly drives the worm gear assembly to rotate, thus determining the operating pressure of the dust removal component. For example, the controller can acquire the initial pressure and operating pressure actively or passively.

[0090] S504 determines the filter replacement signal based on the pressure change of the operating pressure relative to the initial pressure.

[0091] The pressure change of the operating pressure relative to the initial pressure can reflect the degree of dirtiness of the filter screen, and the filter screen replacement signal can be determined based on the degree of dirtiness.

[0092] In a specific embodiment, if the difference between the initial pressure and the operating pressure is less than or equal to the pressure change threshold, it means that during the dust removal process, the dust adheres more firmly to the filter screen, resulting in relatively high dust removal resistance. With the operating parameters of the dust removal component remaining constant, this indicates a high degree of filter screen contamination, meaning that dust removal alone is insufficient to effectively remove the dust, and therefore, the filter screen needs to be replaced. The pressure change threshold can be determined through multiple dust removal tests.

[0093] In another specific embodiment, if the difference between the initial pressure and the operating pressure is greater than the pressure change threshold, it means that the pressure is relatively low during the dust removal process of the dust removal component on the filter screen, which reflects that the degree of dirt on the filter screen is low. The dust on the filter screen can be effectively removed through dust removal, so there is no need to replace the filter screen and the filter screen can continue to be used.

[0094] In some embodiments, such as Figure 6 As shown, step S504 includes:

[0095] S602, obtain the preset pressure change threshold and the preset saturation pressure.

[0096] Among them, the preset pressure change threshold refers to the pressure change threshold that is set in advance.

[0097] The preset saturation pressure refers to the maximum saturation pressure set in advance, which can be used to determine the initial level of dirt on the filter.

[0098] Specifically, by obtaining the preset pressure change threshold and the preset saturation pressure, the conditions for judging pressure changes can be determined, which facilitates the subsequent determination of the filter replacement signal.

[0099] S604: When the pressure change of the operating pressure relative to the initial pressure is less than or equal to the preset pressure change threshold, and the initial pressure is greater than or equal to the preset saturation pressure, the filter replacement signal is determined to be that the filter needs to be replaced.

[0100] Specifically, if the pressure change of the operating pressure relative to the initial pressure is less than or equal to the preset pressure change threshold, and the initial pressure is greater than or equal to the preset saturation pressure, it is considered that the filter has been used for a long time and has a lot of dust. The dust removal component cannot effectively remove the dust during the dust removal process, and the filter is already dirty enough before dust removal (the initial pressure at the beginning of dust removal indicates the degree of dirt on the filter before dust removal). Therefore, the filter needs to be replaced.

[0101] In some embodiments, a filter dust removal method is provided. This method is an improvement based on the filter assembly of an air purifier product. The basic working principle of the product is that the filter assembly and the dust removal assembly rotate simultaneously (but the air inlet of the dust removal assembly always faces the filter, and the filter rotates simultaneously only through the pipe assembly in the dust removal assembly). The dust removal assembly adsorbs the dust on the filter, thereby keeping the filter relatively clean at all times, and improving both the dust removal effect and the service life of the filter.

[0102] Linkage structure and scheme such as Figure 4 As shown:

[0103] The system employs a gear transmission scheme. The motor assembly drives the worm gear assembly to rotate, which in turn drives the first gear and the second gear on both sides to rotate. The ratio of the number of first gears to second gears is 1:4, meaning that for every one revolution of the first gear, the second gear rotates 1 / 4 revolution. The first gear corresponds to the filter screen, and the second gear corresponds to the pipe assembly in the dust removal component.

[0104] The structure of the filter and dust removal components is as follows Figure 3 As shown:

[0105] The dust removal assembly consists of a duct housing and a duct body. The suction port on the duct housing is aligned with the filter screen (the suction port must be small to ensure sufficient suction). The duct body has four connecting ports, as shown in the unfolded diagram. Figure 3 As shown, when the pipe body rotates, the connecting ports on the pipe body are aligned with the air inlets on the pipe shell in sequence, so only a quarter of the opening can draw air at a time (this is to ensure that the suction is strong enough to adsorb the dust on the filter screen).

[0106] The pipeline connects the suction component and the pressure sensor. With a constant suction component rotation speed, the pressure value received by the pressure sensor will vary depending on the filter's usage time and cleanliness. The pressure value changes as follows: Figure 7As shown, for the same filter, after one month of use, cleaning is complete when the pressure value decreases to F4 and no longer changes after cleaning time t3; after three months of use, cleaning is complete when the pressure value decreases to F3 and no longer changes after cleaning time t2; and after six months of use, cleaning is complete when the pressure value decreases to F2 and no longer changes after cleaning time t1. F2 > F3 > F4, indicating that the longer the filter is used, the lower the level of cleaning, and the greater the pressure on the pressure sensor at the air outlet.

[0107] Implementation plan as follows Figure 8 As shown, the user can manually activate the filter cleaning function or select the filter self-cleaning function to remain on. In this embodiment, the worm gear assembly is the worm gear itself, and the fan is the suction component. When the filter self-cleaning function is activated, the motor assembly rotates at a constant speed, driving the worm gear to rotate. Simultaneously, the suction component is activated, and the pressure sensor records the initial pressure value Fa. The first and second gears at both ends of the worm gear rotate at a ratio of 1:4. For every rotation of the filter, the pipe body rotates 1 / 4, thus cleaning exactly one-quarter of the filter. After four rotations, the entire filter is completely cleaned from top to bottom. This process is repeated, and the filter is cleaned again from top to bottom. After t seconds, the pressure value no longer changes, indicating the filter is cleaned. Simultaneously, the pressure value Fb is recorded. If Fa - Fb ≤ Fx, and Fa ≥ F1, the user is reminded that the filter needs to be replaced; otherwise, the self-cleaning process ends, and the filter does not need to be replaced. (e.g.) Figure 7 For the same curve, the shorter the filter usage time, the faster the cleaning speed, i.e., the smaller the t. Different curves indicate different filter usage times and different pressure differences before and after cleaning. When the filter has been used for six months, the pressure difference is the smallest, and the filter needs to be replaced. When the filter has been used for one month, the pressure difference is the largest, and the filter can be cleaned. Stop the motor rotation to end the self-cleaning process.

[0108] In one embodiment, such as Figure 9 As shown, a filter dust removal method is also provided, including:

[0109] Step S901: Obtain the initial pressure on the dust removal component when the motor assembly starts to drive the worm gear assembly to rotate, as detected by the pressure sensor, and the operating pressure on the dust removal component within a preset time after the motor assembly drives the worm gear assembly to rotate;

[0110] Step S902: Obtain the preset pressure change threshold and the preset saturation pressure;

[0111] Step S903: When the pressure change of the operating pressure relative to the initial pressure is less than or equal to a preset pressure change threshold, and the initial pressure is greater than or equal to a preset saturation pressure, the filter replacement signal is determined to be that the filter needs to be replaced.

[0112] It should be understood that although the steps in the flowcharts of the above embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the above embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0113] Based on the same inventive concept, this application also provides a filter dust removal device for implementing the filter dust removal method described above. The solution provided by this device is similar to the solution described in the above method; therefore, the specific limitations in one or more filter dust removal device embodiments provided below can be found in the limitations of the filter dust removal method described above, and will not be repeated here.

[0114] In one embodiment, such as Figure 10 As shown, a filter dust removal device 1000 is provided, including: an operating pressure acquisition module 1002 and a filter replacement signal determination module 1004, wherein:

[0115] The operating pressure acquisition module 1002 is used to acquire the initial pressure on the dust removal component when the motor component starts to drive the worm gear component to rotate, as detected by the pressure sensor, and the operating pressure on the dust removal component within a preset time after the motor component drives the worm gear component to rotate.

[0116] The filter replacement signal determination module 1004 is used to determine the filter replacement signal based on the pressure change of the operating pressure relative to the initial pressure.

[0117] In one specific embodiment, the filter replacement signal determination module 1104 is specifically used to: acquire a preset pressure change threshold and a preset saturation pressure;

[0118] If the pressure change of the operating pressure relative to the initial pressure is less than or equal to the preset pressure change threshold, and the initial pressure is greater than or equal to the preset saturation pressure, the filter replacement signal is determined to be that replacement is required.

[0119] Each module in the aforementioned filter dust removal device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of a computer device in hardware form or independent of it, or stored in the memory of a computer device in software form, so that the processor can call and execute the corresponding operations of each module.

[0120] In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as follows: Figure 11 As shown, the computer device includes a processor, memory, input / output interface, communication interface, display unit, and input device. The processor, memory, and input / output interface are connected via a system bus, and the communication interface, display unit, and input device are also connected to the system bus via the input / output interface. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The input / output interface is used for exchanging information between the processor and external devices. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, NFC (Near Field Communication), or other technologies. When the computer program is executed by the processor, it implements a dust removal method. The display unit is used to form a visually visible image and can be a display screen, projection device, or virtual reality imaging device. The display screen can be an LCD screen or an e-ink screen. The input device of the computer device can be a touch layer covering the display screen, or buttons, trackballs, or touchpads set on the casing of the computer device, or external keyboards, touchpads, or mice, etc.

[0121] Those skilled in the art will understand that Figure 11 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0122] In one exemplary embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the following steps:

[0123] The pressure sensor detects the initial pressure on the dust removal assembly when the motor assembly starts to drive the worm gear assembly to rotate, and the operating pressure on the dust removal assembly within a preset time after the motor assembly drives the worm gear assembly to rotate;

[0124] The filter replacement signal is determined based on the pressure change of the operating pressure relative to the initial pressure.

[0125] In one embodiment, the processor, when executing a computer program, also performs the following steps:

[0126] Obtain the preset pressure change threshold and the preset saturation pressure;

[0127] If the pressure change of the operating pressure relative to the initial pressure is less than or equal to the preset pressure change threshold, and the initial pressure is greater than or equal to the preset saturation pressure, the filter replacement signal is determined to be that replacement is required.

[0128] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, the computer program performing the following steps when executed by a processor:

[0129] The pressure sensor detects the initial pressure on the dust removal assembly when the motor assembly starts to drive the worm gear assembly to rotate, and the operating pressure on the dust removal assembly within a preset time after the motor assembly drives the worm gear assembly to rotate;

[0130] The filter replacement signal is determined based on the pressure change of the operating pressure relative to the initial pressure.

[0131] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0132] Obtain the preset pressure change threshold and the preset saturation pressure;

[0133] If the pressure change of the operating pressure relative to the initial pressure is less than or equal to the preset pressure change threshold, and the initial pressure is greater than or equal to the preset saturation pressure, the filter replacement signal is determined to be that replacement is required.

[0134] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, performs the following steps:

[0135] The pressure sensor detects the initial pressure on the dust removal assembly when the motor assembly starts to drive the worm gear assembly to rotate, and the operating pressure on the dust removal assembly within a preset time after the motor assembly drives the worm gear assembly to rotate;

[0136] The filter replacement signal is determined based on the pressure change of the operating pressure relative to the initial pressure.

[0137] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0138] Obtain the preset pressure change threshold and the preset saturation pressure;

[0139] If the pressure change of the operating pressure relative to the initial pressure is less than or equal to the preset pressure change threshold, and the initial pressure is greater than or equal to the preset saturation pressure, the filter replacement signal is determined to be that replacement is required.

[0140] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties. Furthermore, the acquisition, storage, processing, and transmission of the data all comply with relevant laws and regulations.

[0141] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0142] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0143] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A filter dust removal device, applied to an air purifier, characterized in that, The device includes a dust removal assembly, a motor assembly, a worm gear assembly, a pressure sensor, a first gear, a second gear, and a controller communicatively connected to the motor assembly, the pressure sensor, and the dust removal assembly; both the first gear and the second gear mesh with the worm gear assembly. The motor assembly is used to drive the worm gear assembly to rotate; The worm gear assembly is used to drive the filter screen to rotate via the first gear and drive the dust removal assembly to rotate via the second gear, so that the dust removal assembly removes dust from the filter screen during rotation. The dust removal component is used to drive air through the filter screen to remove dust from the filter screen; The dust removal components include suction components and piping components; The suction component is connected to the pipe assembly; As the suction component draws in air, it generates an airflow. The airflow is then passed through the pipe assembly into the filter screen to separate dust and contaminants from the filter screen. The pressure sensor is used to detect the initial pressure of the dust removal component at the start of dust removal, and the operating pressure on the dust removal component within a preset time after dust removal. The controller is used to acquire the initial pressure and the operating pressure, and to determine the filter replacement signal based on the pressure change of the operating pressure relative to the initial pressure.

2. The device according to claim 1, characterized in that, The pipe assembly includes a pipe body and a pipe shell; the pipe shell surrounds the pipe body.

3. The device according to claim 2, characterized in that, The pipe body includes a plurality of connecting ports arranged in the circumferential direction around the pipe body, and each of the connecting ports is staggered from each other in the axial direction of the pipe body. The outer shell of the pipe is provided with a blow-suction port; The pipe body is rotatable relative to the pipe shell, so that each of the communication ports can be connected to the blow-in / suction port in sequence when the pipe body rotates.

4. The device according to claim 3, characterized in that, The ratio of the number of teeth of the second gear to that of the first gear is the same as the ratio of the area of ​​the blow-in port to that of the connecting port.

5. The device according to claim 2, characterized in that, The pressure sensor is located on the pipe assembly.

6. A method for dust removal using a filter screen, characterized in that, Applied to the device as described in any one of claims 1 to 5, the method comprises: The initial pressure on the dust removal assembly is obtained when the motor assembly starts to drive the worm gear assembly to rotate, as detected by the pressure sensor, and the operating pressure on the dust removal assembly within a preset time after the motor assembly drives the worm gear assembly to rotate; The filter replacement signal is determined based on the pressure change of the operating pressure relative to the initial pressure.

7. The method according to claim 6, characterized in that, The step of determining the filter replacement signal based on the pressure change of the operating pressure relative to the initial pressure includes: Obtain the preset pressure change threshold and the preset saturation pressure; If the pressure change of the operating pressure relative to the initial pressure is less than or equal to a preset pressure change threshold, and the initial pressure is greater than or equal to the preset saturation pressure, then the filter replacement signal is determined to be in need of replacement.

8. A filter screen dust removal device, characterized in that, The apparatus, applied to the filter dust removal method as described in claim 6, comprises: The operating pressure acquisition module is used to acquire the initial pressure on the dust removal component when the motor component starts to drive the worm gear assembly to rotate, as detected by the pressure sensor, and the operating pressure on the dust removal component within a preset time after the motor component drives the worm gear assembly to rotate. The filter replacement signal determination module is used to determine the filter replacement signal based on the pressure change of the operating pressure relative to the initial pressure.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method of claim 6 or 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method of claim 6 or 7.

11. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method of claim 6 or 7.

12. An air purifier, characterized in that, The air purifier includes the filter dust removal device as described in any one of claims 1 to 5.

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