Laundry treating apparatus control method and laundry treating apparatus

Abstract

This invention belongs to the field of garment processing technology, and discloses a control method and garment processing equipment. The method includes: acquiring the current operating parameters of a fan and / or heat pump system; determining the degree of filter clogging based on the current operating parameters of the fan and / or heat pump system; and issuing a warning message when the degree of clogging is greater than or equal to a first preset threshold. This method and equipment can promptly feed back the filter clogging information to the user, thereby reminding the user to clean the filter in a timely manner. This prevents the garment processing equipment from continuing the drying process when the filter is heavily clogged, ensuring smooth airflow in the drying duct and allowing the garment processing equipment to operate at high drying efficiency, reducing energy consumption lost due to filter clogging. Furthermore, since the warning message is only issued when the filter clogging reaches the first preset threshold, the cleaning frequency is not excessive, improving the user experience.

Description

Technical Field

[0001] This invention relates to the field of clothing processing technology, and in particular to a control method for clothing processing equipment and clothing processing equipment. Background Technology

[0002] Clothing treatment equipment with drying functions, such as washer-dryer combos, dryers, and garment care machines, heat and circulate air to quickly evaporate moisture from clothes, thus achieving the purpose of drying. Filters are typically installed in the drying air ducts of these devices to filter out dust, lint, and other impurities from the airflow, preventing these impurities from entering the evaporator and condenser of the heat pump system and thus avoiding impacts on the equipment's performance and lifespan.

[0003] As clothing processing equipment is used, the filter screen gradually becomes clogged with impurities, leading to poor airflow, reduced air volume, decreased drying efficiency, increased energy consumption, and even equipment malfunction. Some existing clothing processing equipment typically relies on labels or post-drying reminders to prompt users to check and clean the filter screen. However, users are often unaware of whether the filter screen needs cleaning, resulting in random cleaning. This can lead to the filter screen not being cleaned for extended periods or being cleaned too frequently, causing problems such as reduced drying efficiency, increased energy consumption, and a greater workload for users, ultimately impacting the user experience.

[0004] Therefore, there is an urgent need for a control method and a garment processing device to solve the aforementioned problems in the existing technology. Summary of the Invention

[0005] The purpose of this invention is to provide a control method and a garment processing device that can promptly provide users with information on the degree of clogging of the filter, enabling the filter to be cleaned in a timely manner without excessive cleaning frequency, thereby improving drying efficiency and reducing energy consumption.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A first aspect provides a method for controlling a garment processing device, the garment processing device including a heat pump system, a drying duct, and a filter and a fan disposed within the drying duct; the method includes:

[0008] Obtain the current operating parameters of the fan and / or the heat pump system;

[0009] The degree of clogging of the filter is determined based on the current operating parameters of the fan and / or the heat pump system.

[0010] A warning message is issued when the degree of congestion is greater than or equal to a first preset threshold.

[0011] As an optional solution to the clothing processing equipment control method provided by the present invention, the operating parameters of the fan include input power, and the operating parameters of the heat pump system include the compressor exhaust temperature change rate; determining the degree of clogging of the filter screen based on the current operating parameters of the fan and / or the heat pump system includes:

[0012] Obtain the first correspondence between the input power and the degree of congestion;

[0013] The degree of blockage is determined based on the current input power of the fan and the first correspondence.

[0014] And / or, obtain a second correspondence between the compressor's discharge temperature change rate and the degree of filter clogging;

[0015] The degree of blockage is determined based on the current rate of change of the compressor's exhaust temperature and the second correspondence.

[0016] As an optional solution to the clothing processing equipment control method provided by the present invention, the first correspondence includes: a one-to-one correspondence between multiple fan power ranges and multiple filter clogging ranges;

[0017] Based on the fan power range to which the current input power belongs, determine the corresponding filter clogging range;

[0018] And / or, the second correspondence includes: a one-to-one correspondence between multiple compressor exhaust temperature change rate ranges and multiple filter clogging degree ranges;

[0019] Based on the compressor exhaust temperature change rate range to which the current exhaust temperature change rate belongs, determine the corresponding filter clogging range;

[0020] Wherein, the first set threshold is the boundary value between two adjacent filter clogging intervals.

[0021] As an optional solution to the clothing processing equipment control method provided by the present invention, the plurality of filter clogging intervals include a first filter clogging interval, a second filter clogging interval, and a third filter clogging interval that increase sequentially; the first set threshold is the boundary value between the first filter clogging interval and the second filter clogging interval;

[0022] If the degree of clogging is within the second filter clogging range, then the warning message is issued;

[0023] If the degree of clogging is within the clogging range of the third filter, then before the next drying process is executed, it is determined whether the filter has been cleaned.

[0024] If so, then run the drying program;

[0025] If not, the drying program will be prohibited from running, and the warning message will be issued.

[0026] As an optional solution to the clothing processing equipment control method provided by the present invention, if the degree of clogging changes from the second filter clogging range to the third filter clogging range during the drying process, the drying process continues until it ends.

[0027] As an optional solution to the clothing handling equipment control method provided by the present invention, the step of obtaining the current input power of the fan includes:

[0028] Obtain the current voltage and current values ​​of the fan;

[0029] The current input power is determined based on the current voltage value, the current current value, and the power factor of the fan.

[0030] Alternatively, the detection value of the power sensor connected in communication with the wind turbine can be obtained, and the detection value can be determined as the current input power.

[0031] As an optional solution to the clothing processing equipment control method provided by the present invention, the step of obtaining the current exhaust temperature change rate of the compressor includes:

[0032] The exhaust temperature of the compressor is detected once every first preset time interval;

[0033] The current exhaust temperature change rate is determined based on the difference between two adjacent exhaust temperature measurements and a first preset time.

[0034] As an optional solution to the clothing handling equipment control method provided by the present invention, the step of issuing a warning message when the degree of blockage is greater than or equal to a first preset threshold includes:

[0035] Determine whether the duration during which the blockage level is greater than or equal to a first preset threshold has reached a second preset duration;

[0036] If so, a warning message will be issued.

[0037] As an optional embodiment of the garment processing equipment control method provided by the present invention, the garment processing equipment control method further includes:

[0038] Receive filter cleaning instructions;

[0039] The filter screen is cleaned by spraying and / or blowing and / or scraping according to the cleaning instructions.

[0040] Alternatively, the filter screen is provided with at least two, one of which is located inside the drying air duct; the control method for the clothing processing equipment further includes:

[0041] Receive filter cleaning instructions;

[0042] The cleaning command causes the filter screen located in the drying duct to be swapped with the other filters.

[0043] In a second aspect, a garment processing device is provided, comprising a memory and a processor; the memory stores a computer program that can run on the processor, and the processor executes the program to implement the garment processing device control method as described above.

[0044] The beneficial effects of this invention are:

[0045] This invention provides a control method and equipment for a garment processing device. When the filter in the drying duct becomes increasingly clogged, the resistance to the circulating airflow increases. To ensure sufficient airflow, the operating parameters of the heat pump system and the fan in the drying duct will change accordingly. By monitoring the current operating parameters of the fan and / or heat pump system in real time, the current degree of filter clogging can be determined. When the clogging level exceeds or equals a first set threshold, a warning message is issued to the user, allowing them to be informed of the filter's clogging status and prompting timely cleaning. This prevents the garment processing device from continuing the drying process when the filter is heavily clogged, ensuring smooth airflow within the drying duct and maintaining high drying efficiency, thus reducing energy consumption due to filter clogging. Furthermore, since the warning message is only issued when the filter clogging reaches the first set threshold, cleaning is not required excessively, improving the user experience. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0047] Figure 1 This is a schematic diagram of the structure of the clothing processing equipment provided in a specific embodiment of the present invention;

[0048] Figure 2 This is a first flowchart of the clothing processing equipment control method provided in Embodiment 1 of the present invention;

[0049] Figure 3This is a second flowchart of the clothing processing equipment control method provided in Embodiment 1 of the present invention;

[0050] Figure 4 This is the third flowchart of the clothing processing equipment control method provided in Embodiment 1 of the present invention;

[0051] Figure 5 This is the fourth flowchart of the clothing processing equipment control method provided in Embodiment 1 of the present invention;

[0052] Figure 6 This is a flowchart of the clothing processing equipment control method provided in Embodiment 2 of the present invention;

[0053] Figure 7 This is a flowchart of the clothing processing equipment control method provided in Embodiment 3 of the present invention;

[0054] Figure 8 This is a flowchart of the clothing processing equipment control method provided in Embodiment 4 of the present invention.

[0055] In the picture:

[0056] 1. Heat pump system; 2. Drying duct; 3. Filter; 4. Fan; 5. Clothes handling drum; 6. Temperature sensor;

[0057] 11. Compressor; 12. Condenser; 13. Evaporator; 14. Expansion valve;

[0058] 21. Bottom air duct; 22. Side air duct. Detailed Implementation

[0059] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0060] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0061] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0062] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0063] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0064] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connect," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0065] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0066] In this embodiment, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0067] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0068] Example 1

[0069] like Figure 1 The clothing processing equipment shown has a clothing drying function. Specifically, it includes a housing and a drying air duct 2, a heat pump system 1, a filter screen 3, a fan 4, and a clothing processing drum 5 located inside the housing. The clothing processing drum 5 is used to hold the clothes to be dried and can rotate under the action of a drive motor.

[0070] The heat pump system 1 includes a compressor 11, a condenser 12, an evaporator 13, and an expansion valve 14, which are connected to form a flow channel for the heat exchange medium. The compressor 11 discharges high-temperature and high-pressure heat exchange medium. After the heat exchange medium releases heat through the condenser 12, it enters the evaporator 13 through the expansion valve 14. After absorbing heat in the evaporator 13, it returns to the compressor 11. The condenser 12, evaporator 13, filter 3, and fan 4 are all located in the drying air duct 2. After the air is heated by the condenser 12, it is blown into the clothes handling drum 5 by the fan 4. After fully exchanging heat with the clothes in the drum, the air is output from the air outlet of the clothes handling drum 5. After lint is removed by the filter 3, the air is cooled and dehumidified by the evaporator 13, and then enters the condenser 12 for heating. Driven by the fan 4, the hot air is reintroduced into the clothes handling drum 5. This cycle is repeated to dry the clothes.

[0071] As clothing processing equipment is used, the filter 3 gradually becomes clogged with impurities, leading to poor airflow, reduced air volume, decreased drying efficiency, increased energy consumption, and even equipment malfunction. Some existing clothing processing equipment typically relies on labels or post-drying reminders to prompt users to check and clean the filter 3. However, users are often unaware of whether the filter 3 needs cleaning, resulting in random cleaning. This can lead to the filter 3 being neglected for extended periods or cleaned too frequently, causing reduced drying efficiency, increased energy consumption, and a greater workload for users, ultimately impacting the user experience.

[0072] like Figure 2 As shown, this embodiment provides a method for controlling a garment processing device, including the following steps:

[0073] S1. Obtain the current operating parameters of fan 4 and / or heat pump system 1.

[0074] S2. Determine the degree of clogging of the filter screen 3 based on the current operating parameters of the fan 4 and / or the heat pump system 1.

[0075] S3. Issue a warning message when the degree of congestion is greater than or equal to the first set threshold.

[0076] When the filter 3 in the drying duct 2 becomes increasingly clogged, the resistance to the circulating airflow within the duct increases. To ensure sufficient airflow, the operating parameters of both the heat pump system 1 and the fan 4 in the drying duct 2 will change accordingly. By monitoring the current operating parameters of the fan 4 and / or the heat pump system 1 in real time, the degree of clogging of the filter 3 can be determined. A warning message is issued when the clogging level of the filter 3 exceeds or equals a first set threshold, providing timely feedback to the user. This informs the user of the current clogging level of the filter 3, reminding them to clean it promptly. This prevents the garment processing equipment from continuing the drying process when the filter 3 is heavily clogged, ensuring smooth airflow within the drying duct 2 and allowing the garment processing equipment to operate at high drying efficiency, thus reducing energy loss due to filter clogging. Furthermore, since a warning message is only issued when the filter 3 reaches the first set threshold, cleaning is not required excessively, improving the user experience.

[0077] For example, the first set threshold value ranges from 40% to 70%, which prevents the user from being reminded to replace the filter only when the filter 3 is highly soiled, and also prevents the replacement frequency from being too frequent. For example, the first set threshold value can be 40%, 50%, 55%, 60%, 65%, 70%, etc., but is not limited to the values ​​and ranges listed above.

[0078] In this embodiment, the operating parameters of the fan 4 include input power, and the operating parameters of the heat pump system 1 include the rate of change of the exhaust temperature of the compressor 11. For example... Figure 3 As shown, in step S1, obtaining the current operating parameters of the fan 4 and / or the heat pump system 1 includes: obtaining the current input power of the fan 4 and / or the current exhaust temperature change rate of the compressor 11 of the heat pump system 1.

[0079] Specifically, in step S2, determining the degree of clogging of the filter 3 based on the current operating parameters of the fan 4 and / or the heat pump system 1 includes the following steps:

[0080] S21. Obtain the first correspondence between input power and blockage level;

[0081] S22. Determine the degree of blockage based on the current input power of fan 4 and the first correspondence;

[0082] And / or, S21, obtain a second correspondence between the discharge temperature change rate of compressor 11 and the degree of clogging of filter screen 3;

[0083] S22. Determine the degree of blockage based on the current discharge temperature change rate of compressor 11 and the second correspondence.

[0084] As the degree of clogging of filter 3 increases, airflow within the drying duct 2 becomes obstructed, gradually reducing the airflow of fan 4. To maintain a consistent airflow, the input power of fan 4 gradually increases. Simultaneously, the obstructed airflow increases the workload of compressor 11, leading to a rise in its exhaust temperature. Different degrees of clogging result in different rates of temperature rise in compressor 11's exhaust. Therefore, the degree of clogging of filter 3 can be determined based on the differences in the input power of fan 4 and the rate of change in compressor 11's exhaust temperature.

[0085] The garment processing equipment has a pre-stored first correspondence between the input power of the fan 4 and the degree of clogging of the filter 3, and / or a second correspondence between the discharge temperature change rate of the compressor 11 and the degree of clogging of the filter 3. When determining the degree of clogging of the filter 3, the pre-stored first or second correspondence is called, and the corresponding degree of clogging is determined based on the obtained current input power of the fan 4 and the current discharge temperature change rate of the compressor 11.

[0086] In this embodiment, the current input power of the fan 4 and the current exhaust temperature change rate of the compressor 11 can be obtained simultaneously, making the monitoring of the degree of clogging of the filter screen 3 more accurate. Of course, only one of the current input power of the fan 4 and the current exhaust temperature change rate of the compressor 11 can be obtained, and the current degree of clogging of the filter screen 3 can be determined in a timely manner to issue a warning message.

[0087] More specifically, the first correspondence includes a one-to-one correspondence between multiple fan power ranges and multiple filter clogging degree ranges. The second correspondence includes a one-to-one correspondence between multiple compressor exhaust temperature change rate ranges and multiple filter clogging degree ranges. That is, the fan power ranges and filter clogging degree ranges form a one-to-one functional relationship, and the compressor exhaust temperature change rate ranges and filter clogging degree ranges form a one-to-one functional relationship.

[0088] In step S22, the corresponding filter clogging interval is determined based on the power range of fan 4 to which the current input power belongs; the corresponding filter clogging interval is also determined based on the exhaust temperature change rate range of compressor 11 to which the current exhaust temperature change rate belongs. This allows the filter clogging interval of filter 3 to be determined, and a warning message is issued when a certain clogging interval is reached.

[0089] The first set threshold is the boundary value between two adjacent filter clogging intervals. When the clogging degree of filter 3 exceeds this boundary value, it enters another filter clogging interval, and the clothing processing equipment issues a warning message.

[0090] like Figure 4 As shown, the multiple filter clogging intervals include a first filter clogging interval, a second filter clogging interval, and a third filter clogging interval that increase sequentially; the first set threshold is the boundary value between the first filter clogging interval and the second filter clogging interval.

[0091] If the clogging level is within the first filter clogging range, no warning message will be issued. At this time, the clogging level of filter 3 is low, the airflow in the drying duct 2 is smooth, and high drying efficiency can be achieved.

[0092] If the clogging level falls within the second filter clogging range, a warning message will be issued. At this point, filter 3 is heavily clogged, and airflow within the drying duct 2 is obstructed. Continued operation will reduce drying efficiency and result in poor drying performance. Therefore, a warning message will be issued to clean filter 3.

[0093] If the clogging level is within the clogging range of the third filter, check whether filter 3 has been cleaned before the next drying program is executed; if yes, run the drying program; if no, prohibit the drying program and issue a warning message.

[0094] When the degree of blockage is within the blockage range of the third filter, it indicates that the blockage is very large and the air volume in the drying duct 2 is extremely low. If the filter 3 is not cleaned in time, the drying program will be prohibited from running and a warning message will be issued to prevent the drying program from running under extremely poor airflow conditions until the user cleans the filter 3.

[0095] That is, when the clogging level of filter 3 reaches the second preset threshold, before the next drying program is executed, it is determined whether filter 3 has been cleaned. If not, the drying program is prohibited and a warning message is issued. The second preset threshold is the boundary value between the second filter clogging level range and the third filter clogging level range.

[0096] For example, the range of the second set threshold is 60% to 80%. For instance, the value of the second set threshold is 60%, 65%, 70%, 75%, 80%, etc., but is not limited to the range of values ​​listed above.

[0097] Furthermore, if the clogging level of filter 3 changes from the second filter clogging range to the third filter clogging range during the drying process, the drying process will continue until it ends to avoid interruption and prevent the user from receiving the dried clothes in time. If the clogging level of filter 3 is still detected as being in the third filter clogging range after the next start of the garment processing equipment, it indicates that filter 3 has not been cleaned, and the drying process should be prohibited at this time.

[0098] In this embodiment, the first and second correspondences are obtained through preliminary experiments. This embodiment uses a first set threshold of 50% and a second set threshold of 75% as an example. During the experiment, a filter 3 clogging model is constructed, using filters 3 with different degrees of clogging (50%, 75%, and 100%, respectively). Through experiments, a mathematical model is established between the input power of the fan 4 and the degree of clogging of the filter 3, obtaining the input power P1, P2, and P3 corresponding to different degrees of clogging for the fan 4. Similarly, using filters 3 with different degrees of clogging (50%, 75%, and 100%, respectively), a mathematical model is established between the discharge temperature change rate of the compressor 11 and the degree of clogging of the filter 3, obtaining the discharge temperature change rates K1, K2, and K3 corresponding to different degrees of clogging for the compressor 11. It can be understood that when the clogging degree is 100%, the corresponding input power of the fan 4 is P3, and the discharge temperature change rate of the compressor 11 is K3.

[0099] like Figure 5 As shown, taking a garment care machine as an example, during the operation of the garment care machine, the current input power P0 of the fan 4 and the current exhaust temperature change rate K0 of the compressor 11 are collected in real time and compared with the parameter values ​​under different clogging levels in the model. When it is found that the input power P0 is less than P1 and / or the exhaust temperature change rate K0 is less than K1, it indicates that the clogging level of the filter 3 is less than the first set threshold of 50%, the clogging level is low, and no warning information is issued.

[0100] When the following conditions are obtained: P1≤Input power P0<P2; and / or K1≤Exhaust temperature change rate K0<K2, it indicates that the degree of clogging of filter screen 3 is between 50% and 75%. The corresponding module of the garment care machine will issue a warning message to remind the user to clean filter screen 3.

[0101] When the following conditions are obtained: P2≤Input Power P0≤P3; and / or K2≤Exhaust Temperature Change Rate K0≤K3, it indicates that the degree of clogging of filter 3 is between 75% and 100%. At this time, after drying is completed, the garment care machine will not be able to start again until the user cleans the filter, and a warning message will be issued to the user.

[0102] For example, warning messages can be displayed on a screen, given as sound alerts, or pushed to a mobile app, etc., without any specific limitations.

[0103] Example 2

[0104] This embodiment provides a control method for a garment processing device, which is a further improvement on the first embodiment.

[0105] like Figure 6 As shown, in step S1 of this embodiment, the step of obtaining the current input power of the wind turbine 4 includes:

[0106] S11. Obtain the current voltage value U and current value I of fan 4.

[0107] S12. Determine the current input power based on the current voltage value U, the current current value I, and the power factor cosφ of fan 4.

[0108] Specifically, the current input power P0 can be obtained using the formula P0 = U × I × cosφ. Here, cosφ is the power factor, obtained experimentally. Furthermore, the current voltage value U and current value I can be obtained through the control board of fan 4. The power factor cosφ ranges from 0 to 1, and its specific value was obtained through multiple previous experiments.

[0109] In other embodiments, a power sensor may also be provided to obtain the detection value of the power sensor that is connected to the wind turbine 4, and the detection value is determined as the current input power P0.

[0110] In step S1 of this embodiment, the step of obtaining the current discharge temperature change rate of compressor 11 includes:

[0111] The exhaust temperature of compressor 11 is checked every first preset time interval t1.

[0112] The current exhaust temperature change rate is determined based on the difference ΔT between two adjacent exhaust temperature measurements and the first preset time t1.

[0113] Specifically, the formula for obtaining the current exhaust temperature change rate is K0 = ΔT / t1. A temperature sensor 6 can be installed downstream of the exhaust port of compressor 11 (see...). Figure 1 The temperature sensor 6 acquires a detection value every first preset time interval t1. The current temperature change rate can be determined by the difference ΔT between two adjacent detection values ​​and the first preset time interval t1.

[0114] For example, the first preset duration t1 ranges from 0.001s to 5s. For instance, the first preset duration t1 can be 0.001s, 0.01s, 0.1s, 0.5s, 1s, etc., but is not limited to the listed values ​​and ranges.

[0115] Example 3

[0116] This embodiment provides a control method for a garment processing device, which is a further improvement on Embodiment 1 and Embodiment 2.

[0117] like Figure 7 As shown, in step S3, issuing a warning message when the congestion level is greater than or equal to the first preset threshold specifically includes:

[0118] Determine if the degree of congestion is greater than or equal to a first preset threshold;

[0119] If yes, determine whether the duration for which the congestion level is greater than or equal to the first preset threshold has reached the second preset duration; if yes, issue a warning message; if no, do not issue a warning message.

[0120] By detecting whether the duration of the blockage degree being greater than or equal to the first preset threshold reaches the second preset duration t2, the situation of misjudging the blockage degree can be avoided. After the duration reaches the second preset duration t2, it can be determined that the blockage degree has indeed reached the first preset threshold, and the clothing processing equipment is controlled to issue a warning message, making the prompt for cleaning the filter screen 3 more accurate.

[0121] For example, the value range of the second preset duration t2 is 3s to 60s. For example, the value of the second preset duration t2 is 3s, 5s, 10s, 20s, 30s, 60s, etc., but it is not limited to the listed values ​​and ranges.

[0122] Example 4

[0123] like Figure 8 As shown, this embodiment provides a control method for a garment processing device, which is a further improvement on any of the above embodiments.

[0124] In this embodiment, after determining that the degree of clogging of the filter 3 is greater than or equal to the first preset threshold, the clothing processing equipment control method further includes:

[0125] S4, Receive filter 3 cleaning command.

[0126] The filter 3 cleaning command is issued by the user, which can be triggered by a button on the clothing processing device or a button on the APP.

[0127] S5. Perform spray cleaning and / or air blowing cleaning and / or scraping cleaning on filter screen 3 according to the cleaning instructions.

[0128] Specifically, a spray module can be installed in the garment processing equipment to spray and clean the filter screen 3, removing lint and other impurities attached to it. Alternatively, an air blowing module, such as a fan, can be installed in the garment processing equipment to blow air onto the filter screen 3, removing lint and other impurities. Alternatively, a movable scraper can be installed on the filter screen 3, and by controlling the movement of the scraper, lint and other impurities attached to it can be scraped off.

[0129] In some other embodiments, at least two filters 3 are provided, one of which is located inside the drying air duct 2; the clothing handling equipment control method further includes:

[0130] S4, Receive filter 3 cleaning command.

[0131] S5. According to the cleaning instruction, the filter 3 located in the drying duct 2 is swapped with the other filters 3. For example, the garment processing equipment has a first area and a second area inside the housing. The first area, located in the drying duct 2, is used to house the filter 3 that participates in the drying process, while the second area is used to house the other filters 3 that do not participate in the drying process. By swapping the positions of the heavily clogged filter 3 and the clean filters 3, the clean filters 3 can participate in the drying process, avoiding any adverse effects on the drying effect. For example, multiple filters 3 can be spaced apart along the conveying direction on the transmission belt of the belt drive mechanism.

[0132] In some other embodiments, after the clothing processing equipment issues a warning message, the user can directly remove the filter screen 3 manually and clean it, and then reinstall it in place after cleaning.

[0133] Example 5

[0134] This embodiment provides a garment processing device for implementing the garment processing device control method described in any of the above embodiments. The garment processing device can be a washing machine, dryer, garment care machine, etc., with a drying function.

[0135] like Figure 1 As shown, the garment processing equipment includes a housing and, within the housing, a drying duct 2, a heat pump system 1, a filter 3, a fan 4, and a garment processing drum 5. The garment processing drum 5 holds the garments to be dried and can rotate under the action of a drive motor. The heat pump system 1 includes a compressor 11, a condenser 12, an evaporator 13, and an expansion valve 14, which are connected to form a flow channel for the circulation of the heat exchange medium. The condenser 12, evaporator 13, filter 3, and fan 4 are all located within the drying duct 2. The drying duct 2 includes a bottom duct 21 and a side duct 22. The bottom duct 21 has space to accommodate the filter 3, evaporator 13, and condenser 12. The airflow output from the garment processing drum 5 enters the bottom duct 21, passes through the filter 3, evaporator 13, and condenser 12 in sequence, and then enters the side duct 22 where the fan 4 is located. Driven by the fan 4, the airflow enters the garment processing drum 5.

[0136] The garment processing device also includes a memory and a processor; the memory stores a computer program that can run on the processor, and when the processor executes the program, it implements the garment processing device control method as described in any of the above embodiments.

[0137] The memory can be used to store software programs, computer-executable programs, and modules, such as the program instructions / modules corresponding to the clothing processing equipment control method in the embodiments of this application. The processor executes the functions and data processing of the clothing processing equipment by running the software programs, instructions, and modules stored in the memory, thereby implementing the aforementioned clothing processing equipment control method. When the computer program stored in the memory is invoked and executed by the processor, the electronic device of the clothing processing equipment performs the steps of the control method in any of the above embodiments.

[0138] For example, the memory can be ROM memory, RAM memory, hard disk drive, CD, DVD, etc.; the processor can be central processing unit, microcontroller (MCU), SoC (system-on-a-chip), etc.

[0139] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A control method for garment processing equipment, characterized in that, The garment processing equipment includes a heat pump system (1), a drying duct (2), and a filter (3) and a fan (4) disposed within the drying duct (2); the method includes: Obtain the current operating parameters of the fan (4) and / or the heat pump system (1); The degree of clogging of the filter screen (3) is determined based on the current operating parameters of the fan (4) and / or the heat pump system (1); A warning message is issued when the degree of congestion is greater than or equal to a first preset threshold.

2. The control method for clothing processing equipment according to claim 1, characterized in that, The operating parameters of the fan (4) include input power, and the operating parameters of the heat pump system (1) include the rate of change of the exhaust temperature of the compressor (11); determining the degree of blockage of the filter (3) based on the current operating parameters of the fan (4) and / or the heat pump system (1) includes: Obtain the first correspondence between the input power and the degree of congestion; The degree of blockage is determined based on the current input power of the fan (4) and the first correspondence. And / or, obtain a second correspondence between the rate of change of the exhaust temperature of the compressor (11) and the degree of blockage of the filter screen (3); The degree of blockage is determined based on the current discharge temperature change rate of the compressor (11) and the second correspondence.

3. The control method for clothing processing equipment according to claim 2, characterized in that, The first correspondence includes: a one-to-one correspondence between multiple fan power ranges and multiple filter clogging ranges; Based on the fan power range to which the current input power belongs, determine the corresponding filter clogging range; And / or, the second correspondence includes: a one-to-one correspondence between multiple compressor exhaust temperature change rate ranges and multiple filter clogging degree ranges; Based on the compressor exhaust temperature change rate range to which the current exhaust temperature change rate belongs, determine the corresponding filter clogging range; Wherein, the first set threshold is the boundary value between two adjacent filter clogging intervals.

4. The control method for clothing processing equipment according to claim 3, characterized in that, The plurality of filter clogging intervals include a first filter clogging interval, a second filter clogging interval, and a third filter clogging interval that increase sequentially; the first set threshold is the boundary value between the first filter clogging interval and the second filter clogging interval; If the degree of clogging is within the second filter clogging range, then the warning message is issued; If the degree of clogging is within the clogging range of the third filter, then before the next drying process is executed, it is determined whether the filter (3) has been cleaned; If so, then run the drying program; If not, the drying program will be prohibited from running, and the warning message will be issued.

5. The control method for clothing processing equipment according to claim 4, characterized in that, If, during the drying process, the degree of clogging changes from the second filter clogging range to the third filter clogging range, the drying process continues until it ends.

6. The control method for clothing processing equipment according to claim 2, characterized in that, The steps for obtaining the current input power of the wind turbine (4) include: Obtain the current voltage and current values ​​of the fan (4); The current input power is determined based on the current voltage value, the current current value, and the power factor of the fan (4); Alternatively, the detection value of the power sensor connected in communication with the fan (4) can be obtained and the detection value can be determined as the current input power.

7. The control method for clothing processing equipment according to claim 2, characterized in that, The step of obtaining the current discharge temperature change rate of the compressor (11) includes: The exhaust temperature of the compressor (11) is detected once every first preset time interval; The current exhaust temperature change rate is determined based on the difference between two adjacent exhaust temperature measurements and a first preset time.

8. The control method for garment processing equipment according to any one of claims 1-7, characterized in that, The step of issuing a warning message when the degree of congestion is greater than or equal to a first preset threshold includes: Determine whether the duration during which the blockage level is greater than or equal to a first preset threshold has reached a second preset duration; If so, a warning message will be issued.

9. The control method for garment processing equipment according to any one of claims 1-7, characterized in that, The control method for the garment processing equipment also includes: Receive filter cleaning command (3); According to the cleaning instructions, the filter screen (3) is sprayed and / or blown and / or scraped cleaned; Alternatively, at least two filters (3) may be provided, one of which is located within the drying duct (2); the clothing processing equipment control method further includes: Receive filter cleaning command (3); According to the cleaning instruction, the filter (3) located in the drying air duct (2) is replaced with the other filters (3).

10. Clothing processing equipment, characterized in that, It includes a memory and a processor; the memory stores a computer program that can run on the processor, and when the processor executes the program, it implements the garment handling equipment control method as described in any one of claims 1-9.

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