Control method and device, storage medium and air conditioner outdoor unit

Abstract

The application provides a control method, device, storage medium and air conditioner outdoor unit. The control method comprises the following steps: after receiving a predetermined drainage instruction of a preset device, it is judged whether dust removal operation is needed for the fan blade of the air conditioner outdoor unit; in the case that it is judged that dust removal operation is needed for the fan blade of the air conditioner outdoor unit, the preset device is controlled to drain water to the fan blade of the air conditioner outdoor unit; in the case that it is judged that dust removal operation is not needed for the fan blade of the air conditioner outdoor unit, the preset device is controlled to drain water according to a preset drainage mode. The control method can avoid the problem that excessive dust on the fan blade of the air conditioner outdoor unit affects the operation of the motor of the air conditioner outdoor unit, so that the performance of the air conditioner is stable, the service life of the air conditioner is improved, the user does not need to manually add water, and the user experience is improved. The problem that the user needs to manually add water and supplement water in the water collecting tank before dust removal of the fan blade of the air conditioner outdoor unit is solved.

Description

Technical Field

[0001] This invention relates to the field of air conditioning cleaning technology, and more specifically, to a control method, device, storage medium, and air conditioning outdoor unit. Background Technology

[0002] In the existing technology, the outdoor unit of an air conditioner will be installed outdoors. Because the outdoor unit is exposed to the harsh outdoor environment all year round, and as the air conditioner runs for a long time, the fan blades in the outdoor unit will accumulate a thick layer of dust, which will increase the weight of the fan blades, increase the motor power, reduce the energy efficiency of the air conditioner, and affect the user experience. At the same time, the uneven accumulation of dust will also disrupt the dynamic balance of the fan blades and reduce the service life of the motor.

[0003] Currently, the dust removal method for the fan blades of outdoor air conditioning units requires the use of water pumps, spray nozzles, and water collection tanks to humidify the fan blades and clean them by frosting and defrosting. However, this dust removal method requires users to manually add water to the water collection tank, which increases the difficulty of operation for users and reduces the user experience. Summary of the Invention

[0004] The main objective of this invention is to provide a control method, device, storage medium, and air conditioner outdoor unit to solve the problem in the prior art that users need to manually add water to the water collection tank before dust removal of the fan blades of the air conditioner outdoor unit.

[0005] To achieve the above objectives, according to one aspect of the present invention, a control method is provided, comprising: upon receiving a predetermined drainage command from a preset device, determining whether dust removal operation is required on the fan blades of an outdoor air conditioner; if it is determined that dust removal operation is required on the fan blades of the outdoor air conditioner, controlling the preset device to drain water to the fan blades of the outdoor air conditioner; and if it is determined that dust removal operation is not required on the fan blades of the outdoor air conditioner, controlling the preset device to drain water according to a preset drainage method.

[0006] Furthermore, determining whether dust removal is required for the fan blades of the outdoor air conditioner includes: obtaining the degree of dust accumulation on the fan blades of the outdoor air conditioner, and determining whether dust removal is required based on the degree of dust accumulation; wherein, if the degree of dust accumulation on the fan blades of the outdoor air conditioner is severe, it is determined that dust removal is required; if the degree of dust accumulation on the fan blades of the outdoor air conditioner is normal, it is determined that dust removal is not required.

[0007] Furthermore, obtaining the degree of dust accumulation on the fan blades of the outdoor unit of the air conditioner includes: obtaining the operating power of the drive motor that drives the fan blades of the outdoor unit of the air conditioner at a predetermined speed, comparing the operating power with a preset power, and determining the degree of dust accumulation on the fan blades of the outdoor unit of the air conditioner based on the comparison result of the operating power and the preset power.

[0008] Furthermore, the degree of dust accumulation on the fan blades of the outdoor unit is determined based on the comparison between the operating power of the drive motor and the preset power, including: if the operating power of the drive motor is greater than the preset power, the degree of dust accumulation on the fan blades of the outdoor unit is determined to be severe; if the operating power of the drive motor is less than or equal to the preset power, the degree of dust accumulation on the fan blades of the outdoor unit is determined to be normal.

[0009] Furthermore, before obtaining the operating power of the drive motor that drives the fan blades of the outdoor unit of the air conditioner at a predetermined speed, the control method also includes: controlling the compressor of the outdoor unit of the air conditioner to stop running and controlling the drive motor to be in running state.

[0010] Furthermore, after the preset device drains water from the fan blades of the air conditioner outdoor unit, the control method further includes: obtaining the drainage status of the preset device draining water from the fan blades of the air conditioner outdoor unit, and adjusting the operation of the drive motor that drives the fan blades of the air conditioner outdoor unit according to the drainage status.

[0011] Furthermore, the operation of the drive motor that drives the fan blades of the outdoor unit of the air conditioner is adjusted according to the drainage situation, including: adjusting the operation of the drive motor according to the amount of drainage; and / or, adjusting the operation of the drive motor according to the cleanliness of the drainage.

[0012] Furthermore, the operation of the drive motor is adjusted according to the amount of drainage, including: when the drainage volume is greater than the preset flow rate, controlling the drive motor to operate at a first operating speed; when the drainage volume is greater than zero and less than or equal to the preset flow rate, controlling the drive motor to operate at a second operating speed; when the drainage volume is equal to zero, controlling the compressor of the outdoor unit of the air conditioner to start; wherein, the first operating speed is greater than the second operating speed.

[0013] Furthermore, the operation of the drive motor is adjusted according to the cleanliness of the drainage, including: when the cleanliness of the drainage is greater than or equal to the preset cleanliness, the drive motor is controlled to operate at a third operating speed, or the drive motor is controlled to alternately rotate forward and reverse to drive the fan blades of the outdoor unit of the air conditioner to rotate forward and reverse; when the cleanliness of the drainage is less than the preset cleanliness, the drive motor is controlled to operate at a fourth operating speed; wherein the third operating speed is less than the fourth operating speed.

[0014] Furthermore, obtaining the drainage status of the preset device to the air conditioner outdoor unit includes: obtaining the status of the preset device in the previous process before the predetermined drainage command; and obtaining the cleanliness of the drainage from the preset device to the air conditioner outdoor unit based on the status of the preset device in the previous process before the predetermined drainage command.

[0015] According to another aspect of the present invention, a control device is provided, comprising: a judgment module, configured to determine whether dust removal operation is required for the fan blades of an outdoor air conditioner after receiving a predetermined drainage command from a preset device; a first control module, configured to control the preset device to drain water to the fan blades of the outdoor air conditioner when it is determined that dust removal operation is required; and a second control module, configured to control the preset device to drain water according to a preset drainage method when it is determined that dust removal operation is not required.

[0016] According to another aspect of the present invention, a non-volatile storage medium is provided, which stores a plurality of instructions suitable for being loaded by a processor and executed by the control method provided above.

[0017] According to another aspect of the present invention, a dust removal device is provided, which employs the control method provided above, comprising: a cleaning structure, wherein the inlet of the cleaning structure is connected to the drain pipe of a preset device, and the cleaning outlet of the cleaning structure is disposed facing the fan blades of an outdoor air conditioning unit; and a control valve disposed between the inlet of the cleaning structure and the drain pipe of the preset device, so as to connect or disconnect the inlet of the cleaning structure from the drain pipe of the preset device.

[0018] Furthermore, the cleaning structure includes: a connecting pipe, one end of which forms the water inlet of the cleaning structure; and a spray element, the water inlet of which is connected to the other end of the connecting pipe, and the spray element is provided with multiple cleaning outlets.

[0019] Furthermore, the dust removal device also includes: a flow detection element and a control element, wherein the flow detection element is installed inside the cleaning structure and is used to detect the water flow rate entering the cleaning structure; both the flow detection element and the drive motor that drives the fan blades of the outdoor air conditioning unit are connected to the control element so that the control element adjusts the speed of the drive motor according to the information detected by the flow detection element; and / or a cleanliness detection element and a control element, wherein the cleanliness detection element is installed inside the cleaning structure and is used to detect the cleanliness of the water entering the cleaning structure; both the cleanliness detection element and the drive motor that drives the fan blades of the outdoor air conditioning unit are connected to the control element so that the control element adjusts the speed of the drive motor according to the information detected by the cleanliness detection element.

[0020] According to another aspect of the present invention, an air conditioner outdoor unit is provided, comprising: an outdoor unit housing and a fan blade, the fan blade being installed inside the outdoor unit housing; and the aforementioned dust removal device, at least a portion of which is installed inside the outdoor unit housing.

[0021] By applying the technical solution of this invention, the control method provided by this invention allows the outdoor unit of an air conditioner to automatically determine whether the fan blades of the outdoor unit need dust removal after receiving a predetermined drainage command from a preset device. When dust removal is required, the water discharged from the preset device is directed onto the fan blades to clean them, achieving a dust removal effect. This enables regular dust removal of the outdoor unit's fan blades, protecting their dynamic balance and preventing excessive dust accumulation that could affect the operation of the outdoor unit's motor, thus ensuring the normal operation of the motor, maintaining stable air conditioner performance, and extending the air conditioner's lifespan. Simultaneously, by controlling the preset device to drain water from the outdoor unit's fan blades, water recycling is achieved, saving water resources and eliminating the need for manual water replenishment, thus improving the user experience. This control method solves the problem in existing technologies where users need to manually add water to the water tank before dust removal of the outdoor unit's fan blades. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0023] Figure 1 A flowchart illustrating an embodiment of the control method according to the present invention is shown;

[0024] Figure 2 A schematic diagram showing the connection between the air conditioner outdoor unit, the dust removal device, and the preset device according to the present invention is shown; and

[0025] Figure 3 It shows Figure 2 A schematic diagram of the cleaning structure in a dust removal device.

[0026] The above figures include the following reference numerals:

[0027] 100. Preset device; 200. Outdoor unit housing; 300. Fan blade; 1. Cleaning structure; 10. Connecting pipe; 11. Sprayer component; 110. Sprayer component body; 111. Water inlet pipe; 112. Water outlet pipe; 2. Control valve; 3. Flow detection component; 4. Control component. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] Please refer to Figure 1 The present invention provides a control method, which includes: after receiving a predetermined drainage command from a preset device, determining whether it is necessary to perform dust removal operation on the fan blades of the outdoor unit of the air conditioner; if it is determined that it is necessary to perform dust removal operation on the fan blades of the outdoor unit of the air conditioner, controlling the preset device to drain water to the fan blades of the outdoor unit of the air conditioner; if it is determined that it is not necessary to perform dust removal operation on the fan blades of the outdoor unit of the air conditioner, controlling the preset device to drain water according to a preset drainage method.

[0030] As can be seen, the control method provided by this invention allows the outdoor unit of the air conditioner to automatically determine whether the fan blades need dust removal after receiving a predetermined drainage command from a preset device. When dust removal is required, the water discharged from the preset device is directed onto the fan blades to clean them, achieving a dust removal effect. This enables regular dust removal of the outdoor unit's fan blades, protecting their dynamic balance and preventing excessive dust accumulation that could affect the motor's operation. This ensures the normal operation of the motor, maintains stable air conditioner performance, and extends the air conditioner's lifespan. Simultaneously, by controlling the preset device to drain water from the fan blades, water recycling is achieved, saving water resources and eliminating the need for manual water replenishment, thus improving the user experience. This control method solves the problem in existing technologies where users need to manually add water to the water tank before dust removal of the outdoor unit's fan blades.

[0031] The term "preset device" refers to a washing device with a drainage function, including but not limited to washing machines and dishwashers. The term "preset drainage method" refers to draining water according to the pre-set drainage method of the device. For example, the preset drainage method of a washing machine or dishwasher is to directly connect the drain outlet to the drain pipe, directly draining water into the drain pipe.

[0032] Preferably, the preset device is a washing machine.

[0033] Specifically, determining whether dust removal is needed for the fan blades of the outdoor air conditioner includes: obtaining the degree of dust accumulation on the fan blades of the outdoor air conditioner, and determining whether dust removal is needed based on the degree of dust accumulation; wherein, if the degree of dust accumulation on the fan blades of the outdoor air conditioner is severe, it is determined that dust removal is needed; if the degree of dust accumulation on the fan blades of the outdoor air conditioner is normal, it is determined that dust removal is not needed.

[0034] Furthermore, obtaining the degree of dust accumulation on the fan blades of the outdoor unit of the air conditioner includes: obtaining the operating power of the drive motor that drives the fan blades of the outdoor unit of the air conditioner at a predetermined speed, comparing the operating power with a preset power, and determining the degree of dust accumulation on the fan blades of the outdoor unit of the air conditioner based on the comparison result of the operating power and the preset power.

[0035] In actual operation, in addition to comparing the operating power of the drive motor of the air conditioner's outdoor unit at a predetermined speed with the preset power, the degree of dust accumulation on the air conditioner's outdoor unit's fan blades can also be obtained by detecting the weight of the air conditioner's outdoor unit's fan blades and comparing the detected weight with the weight of the fan blades before they left the factory. Furthermore, the degree of dust accumulation on the air conditioner's outdoor unit's fan blades can also be obtained by measuring the usage time or operating time of the fan blades.

[0036] The preset speed refers to the rotational speed of the drive motor that powers the fan blades of the outdoor unit before the air conditioner leaves the factory, used for performance testing (i.e., the test speed). The drive motor is the motor of the outdoor unit. The preset power refers to the power output of the outdoor unit's drive motor at the preset speed, set by the R&D personnel before the air conditioner leaves the factory, assuming the outdoor unit's fan blades have the maximum dust level that does not affect the drive motor's operation.

[0037] Furthermore, the degree of dust accumulation on the fan blades of the outdoor unit is determined based on the comparison between the operating power of the drive motor and the preset power, including: if the operating power of the drive motor is greater than the preset power, the degree of dust accumulation on the fan blades of the outdoor unit is determined to be severe; if the operating power of the drive motor is less than or equal to the preset power, the degree of dust accumulation on the fan blades of the outdoor unit is determined to be normal.

[0038] Furthermore, before obtaining the operating power of the drive motor that drives the fan blades of the outdoor unit of the air conditioner at a predetermined speed, the control method also includes: controlling the compressor of the outdoor unit of the air conditioner to stop running and controlling the drive motor to be in running state.

[0039] The control of the drive motor's running state is based on its operational status. When the outdoor unit's drive motor is running, the control maintains that running state. When the outdoor unit's drive motor is off, the control turns the drive motor on.

[0040] Furthermore, in the first embodiment of the control method provided by the present invention, the control preset device drains water to the fan blades of the air conditioner outdoor unit, or the control preset device drains water according to a preset drainage method. When the air conditioner outdoor unit receives the preset drainage command from the preset device, it determines whether the fan blades of the air conditioner outdoor unit need to be dusted. When it is determined that the fan blades of the air conditioner outdoor unit need to be dusted, the air conditioner outdoor unit directly controls the preset device to drain water to the fan blades of the air conditioner outdoor unit. When it is determined that the fan blades of the air conditioner outdoor unit do not need to be dusted, the air conditioner outdoor unit directly controls the preset device to drain water according to a preset drainage method.

[0041] Furthermore, in a second embodiment of the control method provided by the present invention, the control preset device drains water from the fan blades of the air conditioner outdoor unit, or the control preset device drains water according to a preset drainage method, as follows: When the air conditioner outdoor unit receives a preset drainage command from the preset device, it determines whether the fan blades of the air conditioner outdoor unit need dust removal, and feeds back the determination result to the preset device, which then controls the drainage method. When the preset device receives a command indicating that dust removal is required for the fan blades of the air conditioner outdoor unit, the preset device controls the preset device to drain water from the fan blades of the air conditioner outdoor unit; when the preset device receives a command indicating that dust removal is not required for the fan blades of the air conditioner outdoor unit, the preset device controls the preset device to drain water according to a preset drainage method.

[0042] Preferably, when the outdoor unit of the air conditioner receives the preset drainage command from the preset device, it determines whether the fan blades of the outdoor unit need to be dusted, and feeds back the determination result to the preset device, which then controls the drainage method.

[0043] In actual operation, after receiving the preset drainage command from the preset device, the outdoor unit of the air conditioner first controls the compressor of the outdoor unit to stop running, controls the drive motor that drives the fan blades of the outdoor unit to run, and adjusts the rotation of the drive motor to a preset speed (i.e., test speed); then it obtains the operating power of the drive motor at the preset speed and compares the operating power with the preset power, and determines the degree of dust accumulation on the fan blades of the outdoor unit based on the comparison result of the operating power and the preset power.

[0044] The operating power is P, and the preset power is P0. When P≤P0, it is determined that the dust accumulation on the fan blades of the outdoor unit is normal and no dust removal is required. When P>P0, it is determined that the dust accumulation on the fan blades of the outdoor unit is severe and dust removal is required.

[0045] When it is determined that dust removal of the air conditioner outdoor unit's fan blades is not required, the determination result is fed back to the preset device. After receiving the instruction, the preset device controls itself to drain water into the air conditioner outdoor unit's fan blades, thereby removing dust from the fan blades.

[0046] In this embodiment, after controlling the preset device to drain water from the fan blades of the air conditioner outdoor unit, the control method further includes: obtaining the drainage status of the preset device to the fan blades of the air conditioner outdoor unit, and adjusting the operation of the drive motor that drives the fan blades of the air conditioner outdoor unit to move according to the drainage status.

[0047] The drainage situation includes the drainage volume and the cleanliness of the drainage.

[0048] Specifically, the conventional method for detecting and acquiring drainage volume is to use flow detection devices, commonly flow sensors. Similarly, the conventional method for detecting and acquiring drainage cleanliness is to use cleanliness detection devices, commonly cleanliness sensors.

[0049] The principle behind water cleanliness sensors is to assess water cleanliness by measuring the concentration of specific contaminants. A sensor typically contains an electrode; when a specific contaminant comes into contact with the electrode, an electrochemical reaction is triggered. By measuring the change in current or potential on the electrode, the concentration of the contaminant can be determined, thereby determining the water cleanliness.

[0050] Specifically, the operation of the drive motor that drives the fan blades of the outdoor air conditioner is adjusted according to the drainage situation, including three methods: the first method is to adjust the operation of the drive motor only according to the amount of drainage; the second method is to adjust the operation of the drive motor only according to the cleanliness of the drainage; and the third method is to adjust the operation of the drive motor according to both the amount of drainage and the cleanliness of the drainage.

[0051] Furthermore, the first method is adopted: the operation of the drive motor is adjusted according to the amount of drainage, including: when the drainage volume is greater than the preset flow rate, the drive motor is controlled to operate at a first operating speed; when the drainage volume is greater than zero and less than or equal to the preset flow rate, the drive motor is controlled to operate at a second operating speed; when the drainage volume is zero, the compressor of the outdoor unit is started; wherein, the first operating speed is greater than the second operating speed. With this setting, when the drainage volume is greater than the preset flow rate, the drive motor is controlled to operate at the first operating speed, which protects the outdoor unit from excessive water flow entering the components inside the fan blades and other components of the outdoor unit.

[0052] The preset flow rate refers to the water flow rate set in advance by the staff before the air conditioner outdoor unit leaves the factory, based on the maximum water flow rate that the outdoor unit can withstand. This preset flow rate is Q0. The drainage volume refers to the water flow rate when the water discharged from the preset device flows to the fan blades of the air conditioner outdoor unit. This drainage volume is Q1.

[0053] In actual operation, the flow rate of water discharged from the preset device to the fan blades of the air conditioner is detected in real time by the flow sensor. When Q1 > Q0, the drive motor is controlled to run at the first operating speed; when 0 < Q1 ≤ Q0, the drive motor is controlled to run at the second operating speed; when Q1 = 0, the compressor of the air conditioner is controlled to start, and the fan blades of the air conditioner stop dust removal (i.e., exit the dust removal mode).

[0054] Furthermore, the second method involves adjusting the operation of the drive motor based on the cleanliness of the drainage. This includes: when the drainage cleanliness is greater than or equal to a preset cleanliness level, controlling the drive motor to operate at a third operating speed, or controlling the drive motor to alternately rotate forward and reverse to drive the fan blades of the outdoor unit in both directions; when the drainage cleanliness is less than the preset cleanliness level, controlling the drive motor to operate at a fourth operating speed; wherein the third operating speed is less than the fourth operating speed. This setting, controlling the drive motor to operate at the fourth operating speed when the drainage cleanliness is less than the preset cleanliness level, is to prevent excessive pollutants in the drainage from corroding the outdoor unit and affecting its service life.

[0055] The preset cleanliness level is set by staff before the air conditioner outdoor unit leaves the factory, based on the type of different drive motors and to ensure that it does not affect the use of the corresponding type of drive motor.

[0056] Furthermore, a third method is adopted: adjusting the operation of the drive motor according to the amount and cleanliness of the drainage, including: when the drainage volume is greater than the preset flow rate, controlling the drive motor to operate at a first operating speed; when the drainage volume is greater than zero, less than or equal to the preset flow rate, and the cleanliness of the drainage is greater than or equal to the preset cleanliness, controlling the drive motor to operate at a fifth operating speed; when the drainage volume is greater than zero, less than or equal to the preset flow rate, and the cleanliness of the drainage is less than the preset cleanliness, controlling the drive motor to operate at a fourth operating speed; and when the drainage volume is zero, controlling the compressor of the outdoor unit of the air conditioner to start.

[0057] The fifth operating speed is lower than the first and fourth operating speeds.

[0058] Preferably, a third method is adopted: adjusting the operation of the drive motor according to the amount and cleanliness of the drainage. This setting can improve the protection of the outdoor unit of the air conditioner.

[0059] In actual operation, the first, second, third, fourth, and fifth operating speeds will be set by the staff before leaving the factory according to the type of drive motor.

[0060] Specifically, obtaining the drainage status of the preset device to the air conditioner outdoor unit includes: obtaining the status of the previous process of the preset device before the predetermined drainage command; and obtaining the cleanliness of the drainage from the preset device to the air conditioner outdoor unit based on the status of the previous process of the preset device before the predetermined drainage command.

[0061] The principle behind obtaining the status of the previous process before the predetermined drainage command of the preset device is that the preset device has different cleaning steps when washing items, and the cleanliness of the water in the corresponding cleaning steps is also different. Therefore, it is necessary to obtain the status of the previous process before the predetermined drainage command of the preset device, and then obtain the cleanliness of the drainage from the preset device to the fan blades of the air conditioner outdoor unit based on the status of the previous process before the predetermined drainage command of the preset device.

[0062] In actual operation, the preset device usually has a washing step and at least one rinsing step. When it is determined that the fan blades of the air conditioner outdoor unit need to be cleaned, the air conditioner outdoor unit obtains the status of the previous process of the preset device before the predetermined drainage command, and uses a cleanliness detection device (i.e., a cleanliness sensor) to obtain the cleanliness of the water drained in the previous process of the preset device before the predetermined drainage command.

[0063] In practical work, taking the connection between a washing machine and an air conditioner outdoor unit as an example, the process of dust removal from the fan blades of the air conditioner outdoor unit is as follows:

[0064] The washing machine and the outdoor unit of the air conditioner interact via a wireless receiving unit. When the wireless receiving unit in the outdoor unit receives the preset drainage command from the washing machine, the outdoor unit enters the dust removal judgment mode. The specific steps of this dust removal judgment mode are as follows:

[0065] First, the compressor of the outdoor unit of the air conditioner is stopped, and the drive motor that drives the fan blades of the outdoor unit is put into operation. The rotation of the drive motor is adjusted to a predetermined speed (i.e., the test speed). Then, the operating power of the drive motor at the predetermined speed is obtained and compared with the preset power. The degree of dust accumulation on the fan blades of the outdoor unit is determined based on the comparison result of the operating power and the preset power.

[0066] The principle behind determining the degree of dust accumulation on the fan blades of an air conditioner's outdoor unit is based on the fact that the weight of the fan blades is directly proportional to their operating power (i.e., the heavier the fan blades, the greater their operating power). When there is dust on the fan blades, their weight increases, which in turn increases their operating power.

[0067] The operating power is P, and the preset power is P0. When P≤P0, it is determined that the dust accumulation on the fan blades of the outdoor unit is normal and no dust removal is required. When P>P0, it is determined that the dust accumulation on the fan blades of the outdoor unit is severe and dust removal is required.

[0068] When it is determined that dust removal of the air conditioner's outdoor unit's fan blades is not required, the determination result is fed back to the washing machine. Upon receiving the instruction, the washing machine drains water into the drain pipe according to the preset drainage method. When it is determined that dust removal of the air conditioner's outdoor unit's fan blades is required, the determination result is fed back to the washing machine. Upon receiving the instruction, the washing machine drains water into the air conditioner's outdoor unit's fan blades, thereby removing dust from the air conditioner's outdoor unit's fan blades (i.e., the air conditioner's outdoor unit enters dust removal mode).

[0069] After the outdoor unit of the air conditioner enters the dust removal mode, it begins to acquire information about the previous process before the predetermined drainage command. Then, when the washing machine starts draining, it uses flow sensors and cleanliness sensors to detect the water flow rate (i.e., drainage volume) and cleanliness of the water flowing towards the fan blades of the outdoor unit. Based on the drainage volume and cleanliness, it adjusts the operation of the drive motor: when the drainage volume is greater than the preset flow rate, the drive motor operates at the first operating speed; when the drainage volume is greater than zero, less than or equal to the preset flow rate, and the cleanliness is greater than or equal to the preset cleanliness, the drive motor operates at the fifth operating speed; when the drainage volume is greater than zero, less than or equal to the preset flow rate, and the cleanliness is less than the preset cleanliness, the drive motor operates at the fourth operating speed; and when the drainage volume is zero, the compressor of the outdoor unit starts (i.e., the outdoor unit exits the dust removal mode).

[0070] The present invention also provides a control device, comprising: a judgment module, configured to determine whether dust removal operation is required for the fan blades of the outdoor unit of the air conditioner after receiving a predetermined drainage command from a preset device; a first control module, configured to control the preset device to drain water to the fan blades of the outdoor unit of the air conditioner when it is determined that dust removal operation is required; and a second control module, configured to control the preset device to drain water according to a preset drainage method when it is determined that dust removal operation is not required.

[0071] The present invention also provides a non-volatile storage medium that stores multiple instructions applicable to the control method provided in the above embodiments, which are loaded and executed by a processor.

[0072] The present invention also provides a dust removal device, such as Figure 2 and Figure 3 As shown, the dust removal device adopts the control method provided in the above embodiment, including: a cleaning structure 1 and a control valve 2. The water inlet of the cleaning structure 1 is used to connect with the drain pipe of the preset device 100, and the cleaning outlet of the cleaning structure 1 is set towards the fan blade 300 of the air conditioner outdoor unit. The control valve 2 is set between the water inlet of the cleaning structure 1 and the drain pipe of the preset device 100 so that the water inlet of the cleaning structure 1 is connected to or disconnected from the drain pipe of the preset device 100.

[0073] The term "preset device" refers to a washing device with a drainage function, including but not limited to washing machines and dishwashers. The term "preset drainage method" refers to draining water according to the pre-set drainage method of the device. For example, the preset drainage method of a washing machine or dishwasher is to directly connect the drain outlet to the drain pipe, directly draining water into the drain pipe.

[0074] Preferably, the preset device is a washing machine.

[0075] In the specific implementation process, the control valve 2 can be set at the water inlet of the cleaning structure 1, or it can be set on the drain pipe of the preset device 100 and located near the water inlet of the cleaning structure 1.

[0076] Preferably, the control valve 2 is installed on the drain pipe of the preset device 100 and located near the water inlet of the cleaning structure 1.

[0077] In actual operation, the drainage pipe of the preset device 100 has a first outlet and a second outlet. The first outlet is connected to the inlet of the cleaning structure 1, and the second outlet is used for the preset device to drain water according to the preset drainage method. A control valve 2 is located at the first outlet of the drainage pipe of the preset device 100, allowing the control valve 2 to control the connection or disconnection between the inlet of the cleaning structure 1 and the drainage pipe of the preset device 100. When the control valve 2 connects the inlet of the cleaning structure 1 to the drainage pipe of the preset device 100, the control valve 2 blocks the flow of water discharged from the preset device 100 to the second outlet, ensuring that all the water discharged from the preset device 100 flows to the fan blades 300 of the outdoor unit of the air conditioner. When the control valve 2 disconnects the inlet of the cleaning structure 1 from the drainage pipe of the preset device 100, the control valve 2 opens the flow of water discharged from the preset device 100 to the second outlet, allowing the preset device to drain water according to the preset drainage method.

[0078] Among them, the control valve 2 is a two-way valve, which is an automatic control valve, and is also equipped with a manual operation component. When the two-way valve finds that it cannot automatically control the water inlet of the cleaning structure 1 to be connected or disconnected from the drainage pipe of the preset device 100, the manual operation component can be used to control the two-way valve to work.

[0079] In this embodiment, the cleaning structure 1 includes a connecting pipe 10 and a spray element 11. One end of the connecting pipe 10 forms the water inlet of the cleaning structure 1. The water inlet of the spray element 11 is connected to the other end of the connecting pipe 10, and the spray element 11 is provided with multiple cleaning outlets.

[0080] In the specific implementation process, such as Figure 3 As shown, the spray component 11 includes a spray component body 110, a water inlet pipe 111, and multiple water outlet pipes 112. The water inlet pipe 111 is located at the water inlet of the spray component body 110, and the end of the water inlet pipe 111 away from the water inlet of the spray component body 110 forms the water inlet part of the spray component 11. The spray component body 110 is provided with multiple water outlets, which are spaced apart. Each water outlet corresponds to a different water outlet pipe 112, and the end of each water outlet pipe 112 away from the corresponding water outlet of the spray component body 110 forms a cleaning outlet.

[0081] In this embodiment, the dust removal device further includes a flow detection element 3 and a control element 4. The flow detection element 3 is installed inside the cleaning structure 1 and is used to detect the water flow rate entering the cleaning structure 1. The flow detection element 3 and the drive motor that drives the air conditioner outdoor unit fan blades 300 are both connected to the control element 4 so that the control element 4 adjusts the speed of the drive motor according to the flow detection element 3.

[0082] Preferably, the flow detection element 3 is a flow sensor.

[0083] In actual operation, the flow detection element 3 is installed inside the spray body 110 and close to the water inlet of the spray body 110.

[0084] In this embodiment, the dust removal device also includes a cleanliness detection element, which is installed inside the cleaning structure 1. The cleanliness detection element is used to detect the cleanliness of the water entering the cleaning structure 1. Both the cleanliness detection element and the drive motor that drives the fan blades 300 of the outdoor unit of the air conditioner are connected to the control unit 4 so that the control unit 4 adjusts the speed of the drive motor according to the situation detected by the cleanliness detection element.

[0085] Preferably, the cleanliness detection element is a cleanliness sensor.

[0086] In actual operation, the control unit 4 combines the information detected by the flow detection unit 3 and the cleanliness detection unit to adjust the speed of the drive motor.

[0087] In actual operation, the working process of the dust removal device is illustrated using washing machines and air conditioner outdoor units as examples:

[0088] The washing machine and the outdoor unit of the air conditioner interact through a wireless receiving unit. When the wireless receiving unit in the outdoor unit of the air conditioner receives the preset drainage command from the washing machine, the outdoor unit of the air conditioner enters the dust removal judgment mode.

[0089] When it is determined that dust removal of the fan blades of the outdoor unit of the air conditioner is not required, the control valve 2 disconnects the water inlet of the cleaning structure 1 from the drain pipe of the preset device 100, and opens the flow channel of the second water outlet of the drain pipe of the preset device 100, so that the washing machine drains into the water pipe according to the preset drainage method (that is, the drainage flows into the water pipe through the second water outlet).

[0090] When it is determined that the air conditioner outdoor unit's fan blades need to be cleaned (the air conditioner outdoor unit enters the dust removal mode), the control valve 2 connects the water inlet of the cleaning structure 1 to the drain pipe of the preset device 100, and blocks the flow channel of the second water outlet of the drain pipe leading to the preset device 100, so that the washing machine drains water toward the air conditioner outdoor unit's fan blades 300.

[0091] When the washing machine drains water towards the fan blades 300 of the air conditioner outdoor unit, the flow sensor and cleanliness sensor detect the water flow rate and cleanliness of the water flowing towards the fan blades 300. Then, based on the drainage volume and cleanliness, the control unit 4 adjusts the speed of the drive motor. Specifically: when the drainage volume is greater than the preset flow rate, the control unit 4 controls the drive motor to operate at the first operating speed; when the drainage volume is greater than zero, less than or equal to the preset flow rate, and the cleanliness is greater than or equal to the preset cleanliness, the control unit 4 controls the drive motor to operate at the fifth operating speed; when the drainage volume is greater than zero, less than or equal to the preset flow rate, and the cleanliness is less than the preset cleanliness, the control unit 4 controls the drive motor to operate at the fourth operating speed; when the drainage volume is zero, the compressor of the air conditioner outdoor unit is started (i.e., the air conditioner outdoor unit exits the dust removal mode).

[0092] The present invention also provides an outdoor unit for an air conditioner, including an outdoor unit housing 200, a fan blade 300, and the dust removal device provided above, wherein the fan blade 300 is installed inside the outdoor unit housing 200; at least a portion of the dust removal device is installed inside the outdoor unit housing 200.

[0093] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0094] The present invention provides a control method, which includes: after receiving a predetermined drainage command from a preset device, determining whether it is necessary to perform dust removal operation on the fan blades of the outdoor unit of the air conditioner; if it is determined that it is necessary to perform dust removal operation on the fan blades of the outdoor unit of the air conditioner, controlling the preset device to drain water to the fan blades of the outdoor unit of the air conditioner; if it is determined that it is not necessary to perform dust removal operation on the fan blades of the outdoor unit of the air conditioner, controlling the preset device to drain water according to a preset drainage method.

[0095] As can be seen, the control method provided by this invention allows the outdoor unit of the air conditioner to automatically determine whether the fan blades need dust removal after receiving a predetermined drainage command from a preset device. When dust removal is required, the water discharged from the preset device is directed onto the fan blades to clean them, achieving a dust removal effect. This enables regular dust removal of the outdoor unit's fan blades, protecting their dynamic balance and preventing excessive dust accumulation that could affect the motor's operation. This ensures the normal operation of the motor, maintains stable air conditioner performance, and extends the air conditioner's lifespan. Simultaneously, by controlling the preset device to drain water from the fan blades, water recycling is achieved, saving water resources and eliminating the need for manual water replenishment, thus improving the user experience. This control method solves the problem in existing technologies where users need to manually add water to the water tank before dust removal of the outdoor unit's fan blades.

[0096] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A control method, characterized in that, include: After receiving the pre-set drainage command from the preset device, determine whether it is necessary to perform dust removal operation on the fan blades of the outdoor unit of the air conditioner; If it is determined that dust removal is required on the fan blades of the outdoor unit of the air conditioner, the preset device is controlled to drain water into the fan blades of the outdoor unit of the air conditioner. If it is determined that dust removal is not required for the fan blades of the outdoor unit of the air conditioner, the preset device is controlled to drain water according to the preset drainage method; After the preset device drains water to the fan blades of the outdoor unit of the air conditioner, the control method further includes: The method involves obtaining the drainage status of the fan blades of the air conditioner outdoor unit from the preset device, and adjusting the operation of the drive motor that drives the fan blades of the air conditioner outdoor unit according to the drainage status, including adjusting the operation of the drive motor according to the drainage cleanliness status. The step of adjusting the operation of the drive motor based on the cleanliness of the drainage includes: When the cleanliness of the drainage is greater than or equal to the preset cleanliness, the drive motor is controlled to operate at a third operating speed, or the drive motor is controlled to alternately rotate forward and reverse to drive the fan blades of the outdoor unit of the air conditioner to rotate forward and reverse. When the cleanliness of the drainage is less than the preset cleanliness, the drive motor is controlled to operate at a fourth operating speed; Wherein, the third operating speed is less than the fourth operating speed, the preset device is a washing device with drainage function, the preset drainage method refers to draining water according to the drainage method set by the preset device; the cleanliness of the drainage is evaluated based on the concentration of pollutants in the water discharged by the washing device.

2. The control method according to claim 1, characterized in that, The determination of whether dust removal is required for the fan blades of the outdoor unit of the air conditioner includes: The degree of dust accumulation on the fan blades of the outdoor unit of the air conditioner is obtained, and it is determined whether dust removal is required on the fan blades of the outdoor unit of the air conditioner based on the degree of dust accumulation. In cases where the dust accumulation on the fan blades of the outdoor air conditioner is severe, it is determined that dust removal operations need to be performed on the fan blades of the outdoor air conditioner. If the dust accumulation on the fan blades of the outdoor unit of the air conditioner is normal, it is determined that dust removal of the fan blades of the outdoor unit of the air conditioner is not necessary.

3. The control method according to claim 2, characterized in that, The process of obtaining the dust accumulation level on the fan blades of the outdoor unit of the air conditioner includes: The operating power of the drive motor that drives the fan blades of the outdoor unit of the air conditioner at a predetermined speed is obtained, the operating power is compared with a preset power, and the degree of dust accumulation on the fan blades of the outdoor unit of the air conditioner is determined based on the comparison result of the operating power and the preset power.

4. The control method according to claim 3, characterized in that, The step of determining the degree of dust accumulation on the fan blades of the outdoor unit of the air conditioner based on the comparison result of the operating power of the drive motor and the preset power includes: If the operating power of the drive motor is greater than the preset power, it is determined that the dust accumulation on the fan blades of the outdoor unit of the air conditioner is severe. If the operating power of the drive motor is less than or equal to the preset power, the dust accumulation on the fan blades of the outdoor unit of the air conditioner is determined to be normal.

5. The control method according to claim 3, characterized in that, Before obtaining the operating power of the drive motor that drives the fan blades of the outdoor unit of the air conditioner at a predetermined speed, the control method further includes: The compressor of the outdoor unit of the air conditioner is stopped, and the drive motor is put into operation.

6. The control method according to claim 1, characterized in that, The method of adjusting the operation of the drive motor that drives the fan blades of the outdoor unit of the air conditioner according to the drainage situation also includes: The operation of the drive motor is adjusted according to the amount of drainage in the drainage situation.

7. The control method according to claim 6, characterized in that, The step of adjusting the operation of the drive motor according to the amount of drainage in the drainage situation includes: When the drainage volume is greater than the preset flow rate, the drive motor is controlled to operate at a first operating speed; When the drainage volume is greater than zero and the drainage volume is less than or equal to the preset flow rate, the drive motor is controlled to operate at a second operating speed. When the drainage volume is zero, the compressor of the outdoor unit of the air conditioner is started. Wherein, the first operating speed is greater than the second operating speed.

8. The control method according to claim 1, characterized in that, The step of obtaining the drainage status of the fan blades of the air conditioner outdoor unit from the preset device includes: Obtain the status of the previous process before the predetermined drainage command from the preset device; Based on the status of the previous process before the predetermined drainage command, the cleanliness of the drainage discharged by the preset device to the fan blades of the air conditioner outdoor unit is obtained.

9. A control device, characterized in that, include: The judgment module is used to determine whether it is necessary to perform dust removal operation on the fan blades of the outdoor unit of the air conditioner after receiving the predetermined drainage command from the preset device. The first control module is used to control the preset device to drain water to the fan blades of the air conditioner when it is determined that dust removal is required for the fan blades of the air conditioner outdoor unit. The second control module is used to control the preset device to drain water according to a preset drainage method when it is determined that dust removal of the fan blades of the outdoor air conditioner is not required; it is also used to obtain the drainage status of the fan blades of the outdoor air conditioner after controlling the preset device to drain water to the fan blades of the outdoor air conditioner, and adjust the operation of the drive motor that drives the fan blades of the outdoor air conditioner according to the drainage cleanliness status; and when the drainage cleanliness is greater than or equal to the preset cleanliness, control the drive motor to run at a third operating speed, or control the drive motor to alternately rotate forward and reverse to drive the fan blades of the outdoor air conditioner to rotate forward and reverse. When the cleanliness of the drain water is less than the preset cleanliness, the drive motor is controlled to operate at a fourth operating speed; wherein, the third operating speed is less than the fourth operating speed, the preset device is a washing device with a drain function, and the preset drain method refers to draining water according to the original drain method set by the preset device; the cleanliness of the drain water is evaluated based on the concentration of pollutants in the water discharged by the washing device.

10. A non-volatile storage medium, characterized in that, The non-volatile storage medium stores multiple instructions, which are adapted to be loaded by a processor and executed by the control method of any one of claims 1 to 8.

11. A dust removal device, characterized in that, The dust removal device employs the control method described in any one of claims 1 to 8, comprising: The cleaning structure (1) has an inlet for connecting to the drain pipe of the preset device (100) and a cleaning outlet for facing the fan blades of the outdoor unit of the air conditioner. Control valve (2) is provided between the water inlet of the cleaning structure (1) and the drain pipe of the preset device (100) so that the water inlet of the cleaning structure (1) is connected to or disconnected from the drain pipe of the preset device (100).

12. The dust removal device according to claim 11, characterized in that, The cleaning structure (1) includes: A connecting pipe (10) is provided, one end of which forms the water inlet of the cleaning structure (1); The spray element (11) has a water inlet connected to the other end of the connecting pipe (10) and has a plurality of cleaning outlets.

13. The dust removal device according to claim 11, characterized in that, The dust removal device also includes: The flow detection device (3) and the control device (4) are provided. The flow detection device (3) is installed in the cleaning structure (1). The flow detection device (3) is used to detect the water flow rate entering the cleaning structure (1). The flow detection device (3) and the drive motor that drives the air conditioner outdoor unit fan blades (300) are both connected to the control device (4) so ​​that the control device (4) adjusts the speed of the drive motor according to the situation detected by the flow detection device (3). The cleanliness detection device and the control device (4) are installed inside the cleaning structure (1). The cleanliness detection device is used to detect the cleanliness of the water entering the cleaning structure (1). The cleanliness detection device and the drive motor that drives the air conditioner outdoor unit fan blades (300) are both connected to the control device (4) so ​​that the control device (4) adjusts the speed of the drive motor according to the situation detected by the cleanliness detection device.

14. An outdoor unit for an air conditioner, characterized in that, include: An outdoor unit housing (200) and a fan blade (300), wherein the fan blade (300) is installed inside the outdoor unit housing (200); The dust removal device according to any one of claims 11 to 13, wherein at least a portion of the dust removal device is installed within the outdoor unit housing (200).

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