Electric hair drier filter screen cleaning method and device, electric hair drier and storage medium

Abstract

The invention relates to the technical field of electric appliance cleaning, and discloses an electric hair drier filter screen cleaning method and device, an electric hair drier and a storage medium. If it is detected that the blockage coefficient exceeds the preset blockage coefficient, updating the current blockage frequency, and judging whether the updated blockage frequency exceeds the preset blockage frequency or not; if the updated number of blocking times exceeds the preset number of blocking times, a motor of the electric hair drier is controlled to rotate reversely so as to clean the filter screen; wherein a first wind direction flowing through the filter screen when the motor rotates forwards is opposite to a second wind direction flowing through the filter screen when the motor rotates backwards. The motor is controlled to rotate reversely, so that air flows through the air inlet from the air outlet of the electric hair drier and then reaches the filter screen, foreign matters accumulated at the filter screen are blown to the outside of the electric hair drier, and the filter screen is self-cleaned. Therefore, a user does not need to manually clean or replace the filter screen, the filter screen can be intelligently and automatically cleaned, and the use experience of the user is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical appliance cleaning, and in particular to a hair dryer filter cleaning method and device, a hair dryer and a storage medium. Background Art

[0002] High-speed hair dryers are often equipped with filters at the air inlet to prevent the inhalation of hair, dust, etc. After a period of use, foreign matter will accumulate in the filter, which will not only block the air inlet but also make the air outflow polluted.

[0003] Currently, existing technologies mostly focus on dust removal methods and structures for filter cleaning, such as using dust removal components to scrape the filter to remove dust, or adding scrapers and dust storage chambers to remove dust. However, these technologies do not detect the degree of dirtiness, making it difficult for users to determine the specific time to clean the filter. Therefore, existing technologies detect dust removal and prompt users to remove dust, but rely on users to actively clean the hair dryer after receiving the prompt, resulting in a low level of intelligence. If users use the hair dryer for a long time without cleaning it, the overall wind force will be reduced and the air output will contain too much dust, which is not conducive to the user experience. Summary of the Invention

[0004] In view of this, the present invention provides a hair dryer filter cleaning method, device, hair dryer and storage medium to solve the problem that the existing hair dryer cleaning technology relies on the user to actively clean the hair dryer, has a low level of intelligence, and is not conducive to user experience.

[0005] In a first aspect, the present invention provides a method for cleaning a filter of a hair dryer, the method comprising:

[0006] When the hair dryer is powered on, the clogging coefficient and current clogging times of the hair dryer filter are obtained;

[0007] If it is detected that the congestion coefficient exceeds the preset congestion coefficient, the current congestion times are updated, and it is determined whether the updated congestion times exceed the preset congestion times;

[0008] If the updated blockage count exceeds the preset blockage count, the motor of the hair dryer is controlled to reverse to clean the filter; wherein, the first wind direction flowing through the filter when the motor rotates forward is opposite to the second wind direction flowing through the filter when the motor rotates reversely.

[0009] This application detects the filter's clogging coefficient. If it detects that the clogging coefficient exceeds a preset value, it updates the currently stored clogging count. When the cumulative clogging count exceeds the preset value, it controls the motor to reverse, allowing air to flow from the hair dryer's air outlet through the air inlet and then to the filter, blowing any foreign matter accumulated on the filter to the outside of the hair dryer, thereby self-cleaning the filter. This eliminates the need for the user to manually clean or replace the filter, and allows for intelligent and automatic filter cleaning, improving the user experience.

[0010] In an optional embodiment, before determining whether the updated number of congestion times exceeds the preset number of congestion times, the method further includes:

[0011] Remind users to clean the filter;

[0012] In response to a cleaning instruction from the user, the motor of the hair dryer is controlled to reverse, and the updated number of blockages is cleared.

[0013] The present application can also remind the user to clean the filter by issuing a cleaning reminder after detecting that the clogging coefficient exceeds a preset clogging coefficient. If the user confirms that the filter needs to be cleaned, the user can send a cleaning instruction to the hair dryer, which responds to the user's cleaning instruction by controlling the motor to reverse and clearing the updated clogging count to zero.

[0014] In an optional embodiment, the method further includes:

[0015] If it is detected that the blocking coefficient does not exceed the preset blocking coefficient, the current blocking times will be cleared.

[0016] This application will detect the clogging coefficient every time the hair dryer is powered on. If the clogging coefficient does not exceed the preset clogging coefficient, it means that there is not too much dust or other foreign matter accumulated on the filter at this time, or the user may have manually cleaned it by removing the filter. In this case, the currently stored clogging times will be cleared and there is no need to remind the user to clean the filter.

[0017] In an optional embodiment, the air inlet of the hair dryer is provided with a blockage coefficient detection device, the blockage coefficient detection device includes a signal transmitter and a signal receiver, the signal transmitter is used to generate a light signal;

[0018] Get the clogging factor of the hair dryer filter, including:

[0019] obtaining a voltage signal from a signal receiver;

[0020] Determine the dust concentration at the air inlet based on the voltage signal;

[0021] According to the dust concentration, the clogging coefficient of the hair dryer filter is obtained.

[0022] This application sets a signal transmitter and a signal receiver at the air inlet of the hair dryer. When the hair dryer is powered on, the dust concentration at the air inlet is obtained based on the voltage signal of the signal receiver and the voltage threshold corresponding to the filter at different dust concentration thresholds, so as to use the dust concentration to measure the degree of blockage of the filter.

[0023] In an optional embodiment, the air inlet of the hair dryer is provided with a blockage coefficient detection device, and the blockage coefficient detection device includes a gas flow rate detection device;

[0024] Get the clogging factor of the hair dryer filter, including:

[0025] Obtaining the gas flow rate collected by the gas flow rate detection device;

[0026] According to the gas flow rate, the blockage coefficient of the hair dryer filter is obtained.

[0027] The present application sets a gas flow rate detection device at the air inlet of the hair dryer, determines whether the air inlet is blocked by dust or other foreign matter based on the detected gas flow rate of the air inlet, measures the degree of blockage of the filter, and thus determines whether the hair dryer filter needs to be cleaned.

[0028] In an optional embodiment, after obtaining the blockage coefficient of the hair dryer filter, the method further includes:

[0029] The power supply to the blockage coefficient detection device is stopped.

[0030] After obtaining the blockage coefficient of the hair dryer filter, the present application can stop supplying power to the blockage coefficient detection device to extend the service life of the blockage coefficient detection device and reduce the working energy consumption of the hair dryer.

[0031] In an optional embodiment, the method further includes:

[0032] According to the blocking coefficient, determine whether the motor is blocked;

[0033] If the motor is stalled, the motor will be protected from stalling.

[0034] When the present application determines that the motor is stalled based on the blockage coefficient, such as the light intensity detected by the infrared receiving tube and the gas flow rate detected by the gas flow rate detection device, it controls the motor to stop, thereby not only protecting the motor and extending the service life of the motor, but also protecting the safety of the user.

[0035] In a second aspect, the present invention provides a hair dryer filter cleaning device, the device comprising:

[0036] The acquisition module is used to obtain the clogging coefficient and current clogging times of the hair dryer filter when the hair dryer is powered on;

[0037] A processing module, configured to update the current number of congestion times if it is detected that the congestion coefficient exceeds a preset congestion coefficient, and determine whether the updated number of congestion times exceeds a preset number of congestion times;

[0038] The control module is used to control the motor of the hair dryer to reverse to clean the filter if the updated blockage number exceeds the preset blockage number; wherein the first wind direction flowing through the filter when the motor rotates forward is opposite to the second wind direction flowing through the filter when the motor rotates reversely.

[0039] In a third aspect, the present invention provides a hair dryer, comprising: a main control board; the main control board comprises a memory and a processor, the memory and the processor are communicatively connected to each other, computer instructions are stored in the memory, and the processor executes the hair dryer filter cleaning method of the first aspect or any corresponding embodiment thereof by executing the computer instructions.

[0040] In a fourth aspect, the present invention provides a computer-readable storage medium having computer instructions stored thereon, the computer instructions being used to enable a computer to execute the hair dryer filter cleaning method of the first aspect or any corresponding embodiment thereof. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0042] Figure 1 is a partial structural diagram of a hair dryer according to an embodiment of the present invention;

[0043] Figure 2 is a flow chart of a method for cleaning a hair dryer filter according to an embodiment of the present invention;

[0044] Figure 3 is a flow chart of another hair dryer filter cleaning method according to an embodiment of the present invention;

[0045] Figure 4 is a flow chart of another hair dryer filter cleaning method according to an embodiment of the present invention;

[0046] Figure 5 is a flow chart of another hair dryer filter cleaning method according to an embodiment of the present invention;

[0047] Figure 6 is a structural block diagram of a hair dryer filter cleaning device according to an embodiment of the present invention;

[0048] Figure 7 It is a schematic diagram of the hardware structure of the main control board according to an embodiment of the present invention. DETAILED DESCRIPTION

[0049] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0050] According to an embodiment of the present invention, a partial structural diagram of a hair dryer is provided, such as Figure 1 As shown, the hair dryer includes a main control board 101, a motor 102, a filter 103, and a clogging coefficient detection device 104. The main control board 101 is connected to the motor 102 and the clogging coefficient detection device 104 respectively, and the clogging coefficient detection device 104 is used to send the collected clogging coefficient of the filter 103 to the main control board 101.

[0051] It should be noted that the hair dryer has an air inlet and an air outlet. The air inlet refers to the air inlet position of the hair dryer when the motor rotates forward, and the air outlet refers to the air outlet position of the hair dryer when the motor rotates forward. The main control board 101 can control the motor 102 to rotate forward and reverse. When the main control board 101 controls the motor 102 to rotate forward, air flows from the filter 103 through the air inlet of the hair dryer and then reaches the air outlet of the hair dryer; when the main control board 101 controls the motor 102 to rotate reversely, air flows from the air outlet of the hair dryer through the air inlet and then reaches the filter 103. At this time, foreign matter accumulated on the filter 103 is blown to the outside of the hair dryer, thereby cleaning the filter.

[0052] In some embodiments, the motor 102 may be connected to a fan, and each blade of the fan has a certain angle, so that the wind direction is different when the motor rotates forward and reverse.

[0053] Specifically, when the hair dryer is powered on, the main control board 101 obtains the blockage coefficient and the current blockage times of the filter 103; if it is detected that the blockage coefficient exceeds the preset blockage coefficient, the current blockage times are updated, and it is determined whether the updated blockage times exceed the preset blockage times; if the updated blockage times exceed the preset blockage times, the motor 102 is controlled to reverse to clean the filter 103; wherein, the first wind direction flowing through the filter when the motor rotates forward is opposite to the second wind direction flowing through the filter when the motor rotates reversely.

[0054] In some embodiments, the blockage coefficient detection device 104 can be a group of signal transmitters and signal receivers, and the signal transmitter and signal receiver can be relatively arranged at the air inlet of the hair dryer, wherein the signal transmitter is used to generate a light signal, and foreign matter such as dust at the air inlet absorbs or scatters the light signal, and the signal receiver converts the received light signal into a voltage signal and sends it to the main control board 101.

[0055] Illustratively, the signal transmitter may be an infrared transmitting tube, and the signal receiver may be an infrared receiving tube, but the present application is not limited thereto.

[0056] In some embodiments, the blockage coefficient detection device 104 may be a gas flow rate detection device, which is disposed at the inlet of the hair dryer and is used to detect the gas flow rate at the air inlet and send it to the main control board 101 .

[0057] Illustratively, the gas flow rate detection device may be a differential pressure flow meter or a turbine flow meter, etc., but the present application is not limited thereto.

[0058] The hair dryer provided in the embodiment of the present application uses the main control board 101 to detect the clogging coefficient of the filter 103. If the detected clogging coefficient exceeds a preset clogging coefficient, the currently stored clogging count is updated. When the accumulated clogging count exceeds the preset clogging count, the motor 102 is controlled to reverse and clean the filter 103. This eliminates the need for the user to manually clean or replace the filter, and the filter can be intelligently and automatically self-cleaned, ensuring a good user experience.

[0059] The specific principles and working process of the main control board 101 are described in detail in the following method embodiment, which will not be repeated here.

[0060] According to an embodiment of the present invention, an embodiment of a method for cleaning a hair dryer filter is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0061] In this embodiment, a method for cleaning a hair dryer filter is provided, which can be applied to Figure 1 The hair dryer shown, Figure 2 FIG. 1 is a flow chart of a method for cleaning a hair dryer filter according to an embodiment of the present invention. Figure 2 As shown, the process includes the following steps:

[0062] Step S201: When the hair dryer is powered on, the clogging coefficient and the current clogging times of the hair dryer filter are obtained.

[0063] Specifically, the clogging coefficient is used to characterize the degree of clogging of the hair dryer filter. Each time the hair dryer is powered on, the clogging coefficient of the filter is collected to determine whether the filter needs to be cleaned.

[0064] Step S202: If it is detected that the congestion coefficient exceeds the preset congestion coefficient, the current congestion times are updated, and it is determined whether the updated congestion times exceed the preset congestion times.

[0065] It should be noted that the "blockage count" refers to the number of consecutive times the blockage coefficient has been detected to exceed the preset blockage coefficient. The blockage count is reset to zero each time the filter is cleaned or when the hair dryer is powered on and the blockage coefficient is detected to be within the preset blockage coefficient. The preset blockage coefficient can be set based on actual application scenarios and user habits.

[0066] Specifically, the current blockage count refers to the blockage count currently stored on the main control board when the hair dryer is powered on. If the blockage coefficient is detected to exceed the preset blockage coefficient, the currently stored blockage count is incremented by one to obtain an updated blockage count, which is then compared with the preset blockage count. If the updated blockage count exceeds the preset blockage count, it indicates that the filter needs to be self-cleaned, and step S203 is executed. The preset blockage count can be 3, which can be set based on the actual application scenario and user habits, and this application is not limited to this.

[0067] In step S203, if the updated blockage count exceeds the preset blockage count, the motor of the hair dryer is controlled to reverse to clean the filter; wherein the first wind direction flowing through the filter when the motor rotates forward is opposite to the second wind direction flowing through the filter when the motor rotates reversely.

[0068] Specifically, the motor is controlled to reverse so that wind flows from the air outlet of the hair dryer through the air inlet and then reaches the filter, blowing foreign matter accumulated on the filter to the outside of the hair dryer, thereby cleaning the filter.

[0069] Specifically, when the hair dryer performs motor reverse cleaning, it can prompt the user that the filter cleaning process is in progress by displaying a "cleaning status" code on the screen, using an indicator light, etc., or the user can also judge whether the hair dryer is performing filter cleaning by the wind direction. When the hair dryer performs motor reverse cleaning, it will not respond to commands related to motor forward rotation (such as hot air blowing commands, cold air blowing commands, etc.) sent by the user. If the user wants to interrupt the cleaning process, they can interrupt it by turning off the power or long pressing any button to exit the cleaning mode, thereby entering normal use mode.

[0070] It should be noted that after the hair dryer completes a motor reversal cleaning process, the accumulated blockage count will be reset (i.e., the updated blockage count). A complete motor reversal cleaning process can be when the motor reversal duration reaches a preset reversal duration (e.g., 30 seconds) or when the motor reversal number reaches a preset number of reversal turns (which can be set based on the motor reversal frequency). If the user interrupts the motor reversal cleaning process, the blockage count will not be reset, and the updated blockage count will be stored and used as the current blockage count the next time the hair dryer is powered on.

[0071] In some optional implementations, if the updated number of blockages does not exceed the preset number of blockages, the updated number of blockages is stored and used as the current number of blockages when the hair dryer is powered on next time.

[0072] The hair dryer filter cleaning method provided in this embodiment detects the filter's blockage coefficient. If the blockage coefficient exceeds a preset value, the currently stored blockage count is updated. When the cumulative blockage count exceeds the preset value, the motor is controlled to reverse, allowing air to flow from the hair dryer's air outlet through the air inlet and then to the filter, blowing any accumulated foreign matter from the filter to the outside of the hair dryer, thereby self-cleaning the filter. This eliminates the need for the user to manually clean or replace the filter; the filter can be cleaned intelligently and automatically, improving the user experience.

[0073] In this embodiment, a method for cleaning a hair dryer filter is provided, which can be applied to Figure 1 The hair dryer shown, Figure 3 FIG. 1 is a flow chart of a method for cleaning a hair dryer filter according to an embodiment of the present invention. Figure 3 As shown, the process includes the following steps:

[0074] Step S301: When the hair dryer is powered on, the clogging coefficient and the current clogging times of the hair dryer filter are obtained.

[0075] In some optional embodiments, the air inlet of the hair dryer is provided with a blockage coefficient detection device, comprising a signal transmitter and a signal receiver, wherein the signal transmitter is configured to generate a light signal. A voltage signal from the signal receiver is obtained, and the dust concentration at the air inlet is determined based on the voltage signal, thereby determining the blockage coefficient of the hair dryer filter based on the dust concentration.

[0076] Specifically, the signal transmitter can be an infrared emitting tube, and the signal receiver can be an infrared receiving tube. If there is a lot of dust near the filter, when the hair dryer is first powered on, the motor rotates forward, blowing dust and other foreign matter accumulated on the filter toward the air inlet, increasing the number of dust particles at the air inlet. Excessive dust particles absorb or scatter infrared light, causing the infrared receiving tube to receive less light. At this time, the current flowing through the infrared receiving tube decreases, and the resulting voltage decreases. The main control board can determine the dust concentration by detecting this voltage change.

[0077] In some embodiments, the voltage threshold of the signal receiver at different dust concentration thresholds can be determined, and a mapping table between different dust concentration thresholds and voltage thresholds can be constructed in advance. Based on the currently acquired voltage signal of the signal receiver, the dust concentration is obtained by querying the mapping table.

[0078] In the embodiment of the present application, a signal transmitter and a signal receiver are arranged at the air inlet of the hair dryer. When the hair dryer is powered on, the dust concentration at the air inlet is obtained based on the voltage signal of the signal receiver and the voltage threshold corresponding to the filter at different dust concentration thresholds, thereby measuring the degree of clogging of the filter.

[0079] In some optional embodiments, the air inlet of the hair dryer is provided with a blockage coefficient detection device, the blockage coefficient detection device including a gas flow rate detection device. The gas flow rate detected by the gas flow rate detection device is obtained, and the blockage coefficient of the hair dryer filter is obtained based on the gas flow rate.

[0080] Specifically, the gas flow rate detection device can be a differential pressure flowmeter or a turbine flowmeter. By measuring the gas flow rate at the air inlet, the blockage coefficient of the hair dryer filter is determined. Based on the gas flow rate, it can be used to determine whether the air inlet is clogged by dust or other foreign matter. Generally speaking, the slower the gas flow rate, the higher the blockage coefficient; the faster the gas flow rate, the smaller the blockage coefficient.

[0081] The embodiment of the present application sets a gas flow rate detection device at the air inlet of the hair dryer, determines whether the air inlet is blocked by dust or other foreign matter based on the detected gas flow rate of the air inlet, measures the degree of blockage of the filter, and thus determines whether the hair dryer filter needs to be cleaned.

[0082] In some optional implementations, after the blockage coefficient of the hair dryer filter is obtained, the power supply to the blockage coefficient detection device can be stopped to extend the service life of the blockage coefficient detection device and reduce the working energy consumption of the hair dryer.

[0083] Step S302: If it is detected that the congestion coefficient exceeds the preset congestion coefficient, the current congestion times are updated, and it is determined whether the updated congestion times exceed the preset congestion times.

[0084] In some optional embodiments, before determining whether the updated blockage count exceeds a preset blockage count, the user may be prompted to clean the filter. If the user confirms the need for cleaning, the user may send a cleaning instruction via the hair dryer's touchpad or button. The main control panel, in response to the user's cleaning instruction, controls the hair dryer's motor to reverse and resets the updated blockage count to zero.

[0085] For example, the hair dryer can issue cleaning reminders through special prompt lights, LED flashing in a specific pattern, digital tube display codes, etc., to remind the user to clean the filter. The specific details can be comprehensively considered in combination with the specific scenario and user perception, and this application is not limited to this.

[0086] Specifically, if no cleaning instruction is received from the user within a preset time period, such as 2 seconds, after the cleaning reminder is issued to the user, the system determines whether the accumulated number of blockages (i.e., the updated blockage coefficient) exceeds the preset number of blockages to determine whether to execute the self-cleaning process. If the updated number of blockages exceeds the preset number of blockages, step S303 is executed; otherwise, step S304 is executed.

[0087] After detecting that the blockage coefficient exceeds the preset blockage coefficient, the application can also remind the user to clean the filter by issuing a cleaning reminder to avoid excessive dust and reduced wind force, thereby optimizing the user experience. If the user confirms that they want to clean, they can send a cleaning instruction to the hair dryer. In response to the user's cleaning instruction, the hair dryer controls the motor to reverse and resets the updated blockage count to zero.

[0088] Step S303: If the updated number of blockages exceeds the preset number of blockages, the motor of the hair dryer is controlled to reverse to clean the filter; wherein the first wind direction flowing through the filter when the motor rotates forward is opposite to the second wind direction flowing through the filter when the motor rotates reverse. Figure 2 The detailed description of step S203 in the illustrated embodiment will not be repeated here.

[0089] Step S304: If it is detected that the congestion coefficient does not exceed the preset congestion coefficient, the current congestion times are cleared.

[0090] Specifically, if it is detected that the clogging coefficient does not exceed the preset clogging coefficient, it means that there is not too much dust or other foreign matter accumulated on the filter at this time or the user may have manually cleaned the filter, and the currently stored clogging times will be cleared.

[0091] In the embodiment of the present application, the clogging coefficient is detected each time the hair dryer is powered on. If the clogging coefficient does not exceed the preset clogging coefficient, the currently stored clogging times are cleared without reminding the user to clean the filter.

[0092] Step S305: judging whether the motor is stalled according to the stall coefficient; if the motor is stalled, performing stall protection on the motor.

[0093] Specifically, the motor drive circuit has a current sampling resistor. The main control board can use the current value detected by the current sampling resistor to determine whether the motor is operating abnormally. For example, the condition for determining whether the motor is locked can be that the current of each phase of a three-phase motor is greater than 1A and the duration is greater than 15ms.

[0094] In an embodiment of the present application, in order to fully utilize the function of the blockage coefficient detection device, the blockage coefficient detected by the blockage coefficient detection device can be used to determine whether the motor is operating abnormally. For example, when the blockage coefficient detection device is an infrared emitting tube and an infrared receiving tube, if the voltage signal detected by the infrared receiving tube is less than a preset voltage (for example, 0), it means that the infrared light is blocked, and foreign objects such as sticks, fingers, etc. may have entered the motor area, causing the motor to stall, thereby performing stall protection on the motor. When the blockage coefficient detection device is a gas flow rate detection device, if the gas flow rate it detects is less than the preset gas flow rate and the duration is greater than the preset duration, the motor is protected from stall.

[0095] Specifically, when a motor stall is detected, the motor is controlled to stop, which not only protects the motor and extends its service life, but also ensures user safety.

[0096] The hair dryer filter cleaning method provided in this embodiment detects the dust concentration or gas flow rate of the filter. If the dust concentration or gas flow rate exceeds a preset blockage coefficient, the currently stored blockage count is incremented by one. When the accumulated blockage count exceeds the preset blockage count, the motor is controlled to reverse, allowing air to flow from the hair dryer's air outlet through the air inlet and then to the filter, blowing foreign matter accumulated on the filter to the outside of the hair dryer, thereby self-cleaning the filter. This eliminates the need for the user to manually clean or replace the filter, and the filter can be cleaned intelligently and automatically, improving the user experience.

[0097] The hair dryer filter cleaning solution of the present invention is described in detail below with reference to a specific application example.

[0098] Specifically, the hair dryer includes a main control board, a motor, and an infrared sensor. The main control board is responsible for processing the data collected by the infrared sensor and controlling the operation of loads such as the motor.

[0099] The infrared sensor, located in the air duct at the hair dryer's air inlet, consists of an infrared transmitter and receiver. Excessive dust particles absorb or scatter infrared light, causing the infrared receiver to receive less light. This decreases the intensity of the light and the voltage across the receiver. The main control board determines dust concentration by detecting changes in the voltage across the infrared receiver.

[0100] When dust detection is not performed, the power supply to the infrared sensor can be stopped to extend the service life of the device and reduce power consumption.

[0101] like Figure 4As shown in the figure, when the hair dryer is powered on and the motor starts running, a dust concentration measurement is performed. The collected dust concentration is recorded as h. The dust concentration h is compared with the first judgment threshold a. If h>a, it is determined that the filter has accumulated too much dust and needs to be cleaned. The first judgment threshold a set by the system can be determined through testing.

[0102] like Figure 5 As shown, when the dust concentration is detected to be too high for many consecutive times and the user has not performed the motor reversal cleaning operation, the motor reversal cleaning is considered to be automatically performed. The number of consecutive reminders of high dust concentration is recorded as i, and the value of i is increased by one each time the dust concentration is detected to be too high. Set the second judgment threshold b. If i>b, the motor reversal cleaning is considered to be automatically performed. The motor reversal cleaning can be performed after the hair dryer is powered on, or when the user stops using it but the hair dryer is not powered off. When it is detected that the dust concentration does not exceed the first judgment threshold a, or the motor reversal operation is performed, the value of i is reset to zero.

[0103] This application uses infrared tubes and other methods to detect dust concentration at the air inlet. When the dust concentration exceeds a set first judgment threshold, it prompts the user to clean the filter due to excessive dust. If the dust concentration is detected repeatedly, the motor reverses and dust removal is prioritized after the machine is turned on, eliminating the need for manual cleaning. This highly intelligent system helps improve the user experience.

[0104] This embodiment also provides a hair dryer filter cleaning device, which is used to implement the above-mentioned embodiments and preferred embodiments. Details already described will not be repeated here. As used below, the term "module" may refer to a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation using hardware, or a combination of software and hardware, is also possible and contemplated.

[0105] This embodiment provides a hair dryer filter cleaning device, such as Figure 6 Shown, including:

[0106] The acquisition module 601 is used to obtain the clogging coefficient and current clogging times of the hair dryer filter when the hair dryer is powered on;

[0107] The processing module 602 is configured to update the current number of congestion times if it is detected that the congestion coefficient exceeds the preset congestion coefficient, and determine whether the updated number of congestion times exceeds the preset number of congestion times;

[0108] The control module 603 is used to control the motor of the hair dryer to reverse to clean the filter if the updated blockage number exceeds the preset blockage number; wherein the first wind direction flowing through the filter when the motor rotates forward is opposite to the second wind direction flowing through the filter when the motor rotates reversely.

[0109] In some optional embodiments, the air inlet of the hair dryer is provided with a blockage coefficient detection device, which includes a signal transmitter and a signal receiver, wherein the signal transmitter is used to generate an optical signal; the acquisition module 601 is further used to:

[0110] obtaining a voltage signal from a signal receiver;

[0111] Determine the dust concentration at the air inlet based on the voltage signal;

[0112] According to the dust concentration, the clogging coefficient of the hair dryer filter is obtained.

[0113] In some optional embodiments, the air inlet of the hair dryer is provided with a blockage coefficient detection device, and the blockage coefficient detection device includes a gas flow rate detection device; the acquisition module 601 is further used to:

[0114] Obtaining the gas flow rate collected by the gas flow rate detection device;

[0115] According to the gas flow rate, the blockage coefficient of the hair dryer filter is obtained.

[0116] In some optional implementations, after obtaining the blockage coefficient of the hair dryer filter, the obtaining module 601 is further configured to:

[0117] The power supply to the blockage coefficient detection device is stopped.

[0118] In some optional implementations, before determining whether the updated number of congestion times exceeds the preset number of congestion times, the processing module 602 is further configured to:

[0119] Remind users to clean the filter;

[0120] In response to a cleaning instruction from the user, the motor of the hair dryer is controlled to reverse, and the updated number of blockages is cleared.

[0121] In some optional embodiments, the device is further used to:

[0122] If it is detected that the blocking coefficient does not exceed the preset blocking coefficient, the current blocking times will be cleared.

[0123] In some optional embodiments, the device is further used to:

[0124] According to the blocking coefficient, determine whether the motor is blocked;

[0125] If the motor is stalled, the motor will be protected from stalling.

[0126] The further functional description of each of the above modules and units is the same as that of the above corresponding embodiments and will not be repeated here.

[0127] The hair dryer filter cleaning device in this embodiment is presented in the form of a functional unit, where the unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and memory that executes one or more software or fixed programs, and / or other devices that can provide the above functions.

[0128] The embodiment of the present invention further provides a main control board 101 having the above Figure 6 Hair dryer filter cleaning device shown.

[0129] See also Figure 7 , Figure 7 This is a schematic diagram of the structure of a main control board provided by an optional embodiment of the present invention. Figure 7 As shown, the main control board includes: one or more processors 10, a memory 20, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. The various components utilize different buses to communicate with each other and can be installed on a common mainboard or installed in other ways as needed. The processor can process the instructions executed in the main control board, including instructions stored in or on the memory to display the graphical information of the GUI on an external input / output device (such as a display device coupled to the interface). In some optional embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple devices can be connected, and each device provides some necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system). Figure 7 A processor 10 is taken as an example.

[0130] The processor 10 may be a central processing unit, a network processor, or a combination thereof. The processor 10 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit, a programmable logic device, or a combination thereof. The programmable logic device may be a complex programmable logic device, a field programmable gate array, a general purpose array logic, or any combination thereof.

[0131] The memory 20 stores instructions that can be executed by at least one processor 10, so that the at least one processor 10 executes the method shown in the above embodiment.

[0132] The memory 20 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and application programs required for at least one function; the data storage area may store data created based on the use of the main control board, etc. In addition, the memory 20 may include a high-speed random access memory and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some optional embodiments, the memory 20 may optionally include a memory remotely located relative to the processor 10, and these remote memories may be connected to the main control board via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0133] The memory 20 may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a flash memory, a hard disk or a solid-state drive; the memory 20 may also include a combination of the above types of memory.

[0134] The main control board also includes an input device 30 and an output device 40. The processor 10, the memory 20, the input device 30 and the output device 40 can be connected via a bus or other means. Figure 7 The bus connection is taken as an example.

[0135] The input device 30 can receive input digital or character information and generate key signal input related to the user settings and function control of the main control panel, such as a touch screen, a keypad, a mouse, a trackpad, a touch pad, an indicator stick, one or more mouse buttons, a trackball, a joystick, etc. The output device 40 can include a display device, an auxiliary lighting device (e.g., an LED), and a tactile feedback device (e.g., a vibration motor). The above-mentioned display device includes but is not limited to a liquid crystal display, a light emitting diode, a display, and a plasma display. In some optional embodiments, the display device can be a touch screen.

[0136] The embodiment of the present invention also provides a computer-readable storage medium. The above-mentioned method according to the embodiment of the present invention can be implemented in hardware, firmware, or implemented as a computer code that can be recorded in a storage medium, or implemented as a computer code that is originally stored in a remote storage medium or a non-temporary machine-readable storage medium and downloaded through a network and will be stored in a local storage medium, so that the method described herein can be stored in such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only storage memory, a random access memory, a flash memory, a hard disk or a solid-state drive, etc.; further, the storage medium can also include a combination of the above-mentioned types of memory. It can be understood that a computer, a processor, a microprocessor controller or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by a computer, a processor or hardware, the method shown in the above embodiment is implemented.

[0137] A portion of the present invention may be applied as a computer program product, such as a computer program instruction, which, when executed by a computer, can call or provide the method and / or technical solution according to the present invention through the operation of the computer. Those skilled in the art should understand that the form in which the computer program instruction exists in a computer-readable medium includes, but is not limited to, a source file, an executable file, an installation package file, etc. Accordingly, the way in which the computer program instruction is executed by the computer includes, but is not limited to: the computer directly executes the instruction, or the computer compiles the instruction and then executes the corresponding compiled program, or the computer reads and executes the instruction, or the computer reads and installs the instruction and then executes the corresponding installed program. Here, the computer-readable medium may be any available computer-readable storage medium or communication medium that can be accessed by the computer.

[0138] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention. Such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A method for cleaning a hair dryer filter, characterized in that: The method comprises: When the hair dryer is powered on, the clogging coefficient and current clogging times of the hair dryer filter are obtained; If it is detected that the congestion coefficient exceeds the preset congestion coefficient, the current congestion times are updated, and it is determined whether the updated congestion times exceed the preset congestion times; If the updated number of blockages exceeds the preset number of blockages, the motor of the hair dryer is controlled to reverse to clean the filter; wherein, the first wind direction flowing through the filter when the motor rotates forward is opposite to the second wind direction flowing through the filter when the motor rotates reversely.

2. The method according to claim 1, characterized in that Before determining whether the updated number of congestion times exceeds the preset number of congestion times, the method further includes: Remind the user to clean the filter; In response to a cleaning instruction from a user, the motor of the hair dryer is controlled to rotate in reverse, and the updated number of blockages is cleared.

3. The method according to claim 1 or 2, characterized in that The method further comprises: If it is detected that the congestion coefficient does not exceed the preset congestion coefficient, the current congestion times are cleared.

4. The method according to claim 1, wherein The air inlet of the hair dryer is provided with a blockage coefficient detection device, which includes a signal transmitter and a signal receiver, and the signal transmitter is used to generate a light signal; The method of obtaining the blockage coefficient of the hair dryer filter includes: acquiring a voltage signal from the signal receiver; determining a dust concentration at the air inlet based on the voltage signal; The clogging coefficient of the hair dryer filter is obtained according to the dust concentration.

5. The method according to claim 1, wherein The air inlet of the hair dryer is provided with a blockage coefficient detection device, and the blockage coefficient detection device includes a gas flow rate detection device; The method of obtaining the blockage coefficient of the hair dryer filter includes: Obtaining the gas flow rate collected by the gas flow rate detection device; The blockage coefficient of the hair dryer filter is obtained according to the gas flow rate.

6. The method according to claim 4 or 5, characterized in that After obtaining the blockage coefficient of the hair dryer filter, the method further includes: The power supply to the blockage coefficient detection device is stopped.

7. The method according to claim 4 or 5, characterized in that The method further comprises: determining whether the motor is stalled according to the blocking coefficient; If the motor is stalled, the motor is protected from stalling.

8. A hair dryer filter cleaning device, characterized in that: The device comprises: The acquisition module is used to obtain the clogging coefficient and current clogging times of the hair dryer filter when the hair dryer is powered on; a processing module, configured to update the current number of congestion times if it is detected that the congestion coefficient exceeds a preset congestion coefficient, and determine whether the updated number of congestion times exceeds a preset number of congestion times; A control module is used to control the motor of the hair dryer to reverse if the updated blockage number exceeds the preset blockage number to clean the filter; wherein the first wind direction flowing through the filter when the motor rotates forward is opposite to the second wind direction flowing through the filter when the motor rotates reversely.

9. A hair dryer, characterized in that: include: Main control board; The main control board includes a memory and a processor, the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the hair dryer filter cleaning method according to any one of claims 1 to 7 by executing the computer instructions.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a computer to execute the hair dryer filter cleaning method according to any one of claims 1 to 7.

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