Method, apparatus and device for detecting failure of laundry treating apparatus

Abstract

The application belongs to the technical field of household appliances, and particularly relates to a fault detection method, device and equipment of a clothes processing equipment. The application aims to solve the problem of poor accuracy of drainage pump fault detection in the prior art. The application provides a fault detection method, device and equipment of a clothes processing equipment, which determines the fault state of the drainage pump and the fault state of the filter element through the pressure value of the transition cavity and the preset target threshold set, and controls the prompter to issue a prompt signal according to the fault state of the drainage pump and the fault state of the filter element, so that the user can make a timely treatment. The application can simultaneously monitor the fault state of the drainage pump and the fault state of the filter element, has a simple structure, does not need to separately set detection devices, has a short detection time, high accuracy, can timely prompt the user of the fault state of the drainage pump and the fault state of the filter element in the current drainage process, is beneficial to the user to make a timely treatment, and further improves the working efficiency of the clothes processing equipment.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and in particular to a fault detection method, apparatus and equipment for clothing processing equipment. Background Technology

[0002] With the development of home appliance technology, clothing handling equipment, such as washing machines and washer-dryer combos, is becoming increasingly intelligent, and its fault diagnosis and prompting are constantly being upgraded. Generally, clothing handling equipment is equipped with a drain pump, and a filter is installed upstream of the drain pump to filter the discharged water and prevent impurities such as lint from getting tangled in the drain pump and causing malfunctions. Therefore, the filter needs to be cleaned regularly.

[0003] Typically, garment processing equipment only has a fault detection device for the drain pump to check for malfunctions. Specifically, it calculates the fault based on factors such as drainage time and flow rate, which is not only time-consuming and inefficient but also inaccurate. Meanwhile, filters, often obstructed by filter doors or the machine casing, are easily overlooked and only cleaned after a drain pump malfunctions, affecting the normal operation of the garment processing equipment. Summary of the Invention

[0004] This application provides a fault detection method, apparatus, and device for clothing processing equipment, which solves the technical problem of poor accuracy in fault detection of drainage pumps in the prior art.

[0005] In a first aspect, embodiments of this application provide a fault detection method for a garment processing device. The garment processing device includes a drainage filtration device, which comprises a housing, a drainage pump, and a filter element. The housing has a filtration chamber, a drainage chamber, and a transition chamber connecting the filtration chamber and the drainage chamber. The filter element is installed in the filtration chamber, and at least a portion of the drainage pump is installed in the drainage chamber. The garment processing device also includes an indicator. The method includes:

[0006] Obtain the pressure value of the transition cavity;

[0007] Based on the pressure value and a preset set of target thresholds, the fault status of the drain pump and the filter element are determined; the set of target thresholds includes multiple target thresholds.

[0008] Based on the fault status of the drain pump and the filter element, the indicator is controlled to issue a warning signal.

[0009] In one possible implementation, determining the fault state of the drain pump and the filter element based on the pressure value and a preset set of target thresholds includes:

[0010] When the pressure value is greater than or equal to a first target threshold, the fault state of the drainage pump is determined based on the pressure value and the target threshold set; the first target threshold belongs to the target threshold set, and the first target threshold is less than zero;

[0011] When the pressure value is less than the first target threshold, the fault state of the filter element is determined based on the pressure value and the target threshold set.

[0012] In one possible implementation, determining the fault state of the drainage pump based on the pressure value and the target threshold set when the pressure value is greater than or equal to a first target threshold includes:

[0013] If the pressure value is greater than or equal to the first target threshold and the pressure value is less than zero, the fault state of the drainage pump is determined to be a level one fault state.

[0014] When the pressure value is greater than or equal to zero, the fault state of the drainage pump is determined to be a level two fault state.

[0015] In one possible implementation, the indicator includes a first light group, which includes a first indicator light and a second indicator light;

[0016] The step of controlling the indicator to issue a prompt signal based on the fault status includes:

[0017] When the fault condition of the drainage pump is determined to be a level one fault condition, the first indicator light is controlled to emit a first color light;

[0018] When the fault condition of the drainage pump is determined to be a level two fault condition, the second indicator light is controlled to emit a second color light.

[0019] In one possible implementation, determining the fault state of the filter element based on the pressure value and the target threshold set when the pressure value is less than the first target threshold includes:

[0020] When the pressure value is greater than or equal to the second target threshold and less than the first target threshold, the filter element is determined to be in a first-level blockage state.

[0021] When the pressure value is greater than or equal to the third target threshold and less than the second target threshold, the filter element is determined to be in a secondary blockage state.

[0022] When the pressure value is less than the third target threshold, the filter element is determined to be in a level three blockage state.

[0023] Wherein, both the second target threshold and the third target threshold belong to the target threshold set, and the second target threshold is less than the first target threshold, and the third target threshold is less than the second target threshold.

[0024] In one possible implementation, the indicator further includes a second light group, which includes a third indicator light, a fourth indicator light, and a fifth indicator light;

[0025] The step of controlling the indicator to issue a prompt signal based on the fault status includes:

[0026] When the filter element is first-stage blocked, the third indicator light is controlled to emit a third color light;

[0027] When the filter element is blocked in two stages, the fourth indicator light is controlled to emit a fourth color light;

[0028] When the filter element is three-stage clogged, the fifth indicator light is controlled to emit a fifth color light.

[0029] In one possible implementation, obtaining the pressure value of the transition cavity includes:

[0030] When the drain pump is turned on for a preset time and the difference between the input voltage and the rated voltage of the drain pump is within a preset range, the pressure value of the transition chamber is obtained.

[0031] or,

[0032] When the difference between the current power of the drainage pump and the rated power of the drainage pump is within a preset range, and the difference between the input voltage of the drainage pump and the rated voltage is within a preset range, the pressure value of the transition chamber is obtained.

[0033] Secondly, embodiments of this application provide a fault detection device for a garment processing equipment. The garment processing equipment includes a drainage filtration device, which comprises a housing, a drainage pump, and a filter element. The housing has a filter chamber, a drainage chamber, and a transition chamber connecting the filter chamber and the drainage chamber. The filter element is installed in the filter chamber, and at least a portion of the drainage pump is installed in the drainage chamber. The garment processing equipment also includes an indicator. The fault detection device for the garment processing equipment includes an acquisition module, a determination module, and a control module, wherein:

[0034] The acquisition module is used to acquire the pressure value of the transition cavity;

[0035] The determining module is used to determine the fault status of the drain pump and the filter element based on the pressure value and a preset set of target thresholds; the set of target thresholds includes multiple target thresholds.

[0036] The control module is used to control the indicator to issue a warning signal based on the fault status of the drain pump and the filter element.

[0037] In some possible implementations, the determining module is specifically used for,

[0038] When the pressure value is greater than or equal to a first target threshold, the fault state of the drainage pump is determined based on the pressure value and the target threshold set; the first target threshold belongs to the target threshold set, and the first target threshold is less than zero;

[0039] When the pressure value is less than the first target threshold, the fault state of the filter element is determined based on the pressure value and the target threshold set.

[0040] In some possible implementations, the determining module is specifically used for,

[0041] If the pressure value is greater than or equal to the first target threshold and the pressure value is less than zero, the fault state of the drainage pump is determined to be a level one fault state.

[0042] When the pressure value is greater than or equal to zero, the fault state of the drainage pump is determined to be a level two fault state.

[0043] In some possible implementations, the indicator includes a first light group, which includes a first indicator light and a second indicator light;

[0044] The control module is specifically used to control the first indicator light to emit a first color light when the fault state of the drainage pump is determined to be a first-level fault state; and to control the second indicator light to emit a second color light when the fault state of the drainage pump is determined to be a second-level fault state.

[0045] In some possible implementations, the determining module is specifically used to determine the filter element's fault state as a level one blockage state when the pressure value is greater than or equal to a second target threshold and less than a first target threshold.

[0046] When the pressure value is greater than or equal to the third target threshold and less than the second target threshold, the filter element is determined to be in a secondary blockage state.

[0047] When the pressure value is less than the third target threshold, the filter element is determined to be in a level three blockage state.

[0048] Wherein, both the second target threshold and the third target threshold belong to the target threshold set, and the second target threshold is less than the first target threshold, and the third target threshold is less than the second target threshold.

[0049] In some possible implementations, the indicator further includes a second light group, which includes a third indicator light, a fourth indicator light, and a fifth indicator light; the control module is specifically used to control the third indicator light to emit a third color light when the filter element is first-stage blocked; to control the fourth indicator light to emit a fourth color light when the filter element is second-stage blocked; and to control the fifth indicator light to emit a fifth color light when the filter element is third-stage blocked.

[0050] In some possible implementations, the acquisition module is specifically used to acquire the pressure value of the transition chamber when the drain pump is turned on for a preset time and the difference between the input voltage and the rated voltage of the drain pump is within a preset range; or, when it is determined that the difference between the current power and the rated power of the drain pump is within a preset range and the difference between the input voltage and the rated voltage of the drain pump is within a preset range, the acquisition module acquires the pressure value of the transition chamber.

[0051] Thirdly, embodiments of this application provide a garment processing device, including: a processor and a memory;

[0052] The memory stores computer programs;

[0053] The processor executes the computer program stored in the memory to implement the fault detection method for the clothing processing equipment as described in any of the first aspects.

[0054] Fourthly, embodiments of this application also provide a computer-readable storage medium storing computer-executable instructions; when executed by a processor, the computer-executable instructions are used to implement the fault detection method for the clothing processing equipment as described in any of the above embodiments.

[0055] Fifthly, embodiments of this application also provide a computer program product, the computer program product including a computer program, which, when executed by a processor, implements the fault detection method for the clothing processing equipment as described in any of the above embodiments.

[0056] This application provides a method for detecting the fault status of a garment processing device. The garment processing device includes a drainage filtration unit, which comprises a housing, a drainage pump, and a filter element. The housing has a filtration chamber, a drainage chamber, and a transition chamber connecting the filtration chamber and the drainage chamber. The filter element is installed in the filtration chamber, and at least a portion of the drainage pump is installed in the drainage chamber. The garment processing device also includes an indicator. This application provides a method for detecting the fault status of a garment processing device. By comparing the pressure value of the transition chamber with a preset target threshold set, the method determines the fault status of the drainage pump and the filter element. Based on the fault status of the drainage pump and the filter element, it controls the indicator to issue an alert signal, allowing the user to take timely action. This application provides a method for simultaneously monitoring the fault status and fault level of the drainage pump and the filter element. It has a simple structure, eliminating the need for separate detection devices. The detection time is short, and the accuracy is high. It can promptly alert the user to the fault status of the drainage pump and the filter element during the drainage process, enabling the user to take timely action and thus improving the working efficiency of the garment processing device. Attached Figure Description

[0057] Figure 1 A cross-sectional view of a drainage filtration device for a garment processing apparatus provided in an embodiment of this application;

[0058] Figure 2 for Figure 1 Sectional view of AA;

[0059] Figure 3 A fault detection method for a garment processing device is provided in this application embodiment;

[0060] Figure 4 Another method for fault detection of clothing processing equipment provided in this application embodiment;

[0061] Figure 5 This is a schematic diagram of the structure of a prompter provided in an embodiment of this application;

[0062] Figure 6 This is a schematic diagram of the structure of a fault detection device for a garment processing equipment provided in an embodiment of this application;

[0063] Figure 7 This is a schematic diagram of the hardware structure of the clothing processing device provided in an embodiment of this application.

[0064] Explanation of reference numerals in the attached figures:

[0065] 101: Housing; 102: Drain pump; 1021: Impeller; 103: Filter element; 104: Filter chamber; 1041: Inlet; 105: Drain chamber; 1051: Drain outlet; 106: Transition chamber; 107: Pressure sensor. Detailed Implementation

[0066] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0067] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0068] In related technologies, the drain pump and filter of clothing processing equipment are usually set together to facilitate the filtration of the drain water and prevent lint and other impurities from tangling with the drain pump and causing malfunctions. The filter is often obstructed by the filter compartment door or the machine casing, and most users tend to overlook it and neglect cleaning it. A drain pump fault detection device is needed so that users know the filter needs cleaning only after a malfunction is detected. Before the drain pump malfunctions, lint accumulates in the filter with each washing cycle, especially in washer-dryer combos. For front-loading washing machines, most use a top-drain design, where lint, dust, and other impurities are soaked in water for extended periods, easily becoming moldy, discolored, and turning black. These impurities then mix with the wash water in the next wash, affecting the hygiene and health of the clothes. Even when filter blockage doesn't cause drain pump failure, the extended drain time leads to longer washing times. Therefore, timely filter cleaning is necessary.

[0069] Some users know that the filter needs cleaning, but they are unsure when it needs to be done, especially with front-loading washing machines where the filter installation location is complex. Users may open the machine only to find the filter doesn't need cleaning, wasting time and effort. Sometimes, when drainage slows down or stops, it's difficult to determine whether the problem is a clogged filter or a faulty drain pump. If the user opens the machine themselves and finds it's a drain pump malfunction, they can't fix it; if they contact after-sales service and find the filter is clogged, it not only wastes maintenance resources but also affects the machine's operation.

[0070] Some drainage pump fault detection devices calculate based on factors such as drainage time and flow rate to determine whether the drainage pump has malfunctioned. However, this method is not only time-consuming and inefficient, but also inaccurate.

[0071] In view of this, the clothing processing equipment provided in the embodiments of this application includes a drainage filtration device, which includes a housing, a drainage pump, and a filter element. The housing is provided with a filter chamber, a drainage chamber, and a transition chamber connecting the filter chamber and the drainage chamber. The filter element is installed in the filter chamber, and at least a portion of the drainage pump is installed in the drainage chamber. A pressure sensor is installed in the transition chamber. The pressure value of the transition chamber is detected by the pressure sensor, and the fault status of the filter element and the drainage pump are determined according to the relationship between the pressure value and the target threshold.

[0072] Specifically, when the pressure value is greater than or equal to zero, the drain pump is identified as a level two fault, and the second indicator light emits a second color light to prompt the user that the drain pump needs maintenance. When the pressure value is greater than or equal to the first target threshold and the pressure value is less than zero, the drain pump is identified as a level one fault, and the first indicator light emits a first color light to prompt the user that the drain pump has a minor fault and can be repaired or not repaired temporarily. The first target threshold is negative pressure and is less than zero.

[0073] When the pressure value is greater than or equal to the second target threshold and less than the first target threshold, the filter element is determined to be in a first-level blockage state. The third indicator light then emits a third-color light to alert the user that the filter element is only slightly blocked and does not require cleaning. The second target threshold is less than the first target threshold.

[0074] When the pressure value is greater than or equal to the third target threshold and less than the second target threshold, the filter element is determined to be in a level two blockage state. The fourth indicator light then emits a fourth color light, prompting the user that the filter element is moderately blocked and can be cleaned. Alternatively, cleaning the filter element is not necessary at this point, as it will only affect the drainage speed. The third target threshold is less than the second target threshold.

[0075] When the pressure value is less than the third target threshold, the filter element is determined to be in a level three blockage state. The fifth indicator light is then controlled to emit the fifth color light to remind the user that the filter element is severely blocked and must be cleaned.

[0076] In the above process, the pressure in the transition chamber is detected by a pressure sensor, which can simultaneously monitor the fault status of the drain pump and the filter element. The structure is simple and does not require separate detection devices. The detection time is short and the accuracy is high. It can promptly inform the user of the status of the drain pump and the filter element during the current drainage process, so that the user can take timely action and improve the working efficiency of the clothing processing equipment.

[0077] Below, in conjunction with Figure 1 and Figure 2 The drainage filtration device of the garment processing equipment according to an embodiment of this application will be described. Figure 1 A cross-sectional view of a drainage filtration device for a garment processing apparatus provided in an embodiment of this application; Figure 2 for Figure 1 Sectional view of AA.

[0078] Please see Figure 1 and Figure 2 The garment processing equipment includes a drainage filtration device, which includes a housing 101, a drainage pump 102, and a filter element 103. The housing 101 is provided with a filter chamber 104, a drainage chamber 105, and a transition chamber 106 connecting the filter chamber 104 and the drainage chamber 105. The filter element 103 is installed in the filter chamber 104, and the filter element 103 and the housing forming the filter chamber 106 form a filter. At least a portion of the drainage pump 102 is installed in the drainage chamber 105.

[0079] The housing 101 may include a sealed tube and an end cap, forming a filter chamber 104, a drain chamber 105, and a transition chamber 106 through the tube and end cap, which facilitates the installation of the drain pump 102 and the filter element 103.

[0080] In this embodiment of the application, the side wall of the drainage chamber 105 is provided with a drain outlet 1051, and the drainage pump 102 includes a motor and an impeller 1021. The impeller 1021 is installed in the drainage chamber 105, and the motor is connected to the impeller 1021 through the output shaft, thereby driving the pressure wheel 1021 to rotate, and thus driving the water in the drainage chamber 105 to be discharged through the drain outlet 1051.

[0081] See also Figure 1 and Figure 2 The side wall of the filter chamber 104 is provided with a water inlet 1041. Water from the cylinder of the clothing processing equipment enters the filter chamber 104 through the pipe and the water inlet 1041. After being filtered by the filter element 103 to remove impurities such as lint, it enters the drain chamber 105 through the transition chamber 106.

[0082] In order to facilitate the filtering of impurities such as lint by the filter element 103, the diameter of the transition cavity 106 is smaller than the diameter of the filter cavity 104.

[0083] A mounting hole is provided on the side wall of the transition cavity 106 for mounting a pressure sensor 107 to detect the pressure of the transition cavity 106.

[0084] When the drain pump 102 is working normally and the filter element 103 is not blocked, the water entering through the inlet 1041 is filtered by the filter element 103. Under the action of the resistance of the filter element 103 and the friction of the inner wall, the instantaneous drainage volume of the drain outlet 1051 is greater than the instantaneous water inlet volume of the inlet 1041, resulting in negative pressure in the transition chamber 106. The negative pressure at this time is defined as the standard negative pressure value.

[0085] As the washing cycle of the garment processing equipment increases, the lint filtered by the filter element 103 continues to accumulate, increasing resistance and causing the negative pressure in the transition chamber 106 to increase. Therefore, the clogging status of the filter element 103 can be determined based on the amount of negative pressure increase of the negative pressure value of the transition chamber 106 relative to the standard negative pressure value.

[0086] When the motor of the drainage pump 102 fails, the speed of the impeller 1021 decreases, and the instantaneous drainage volume of the drain outlet 1051 is less than the instantaneous water inlet volume of the inlet 1041, resulting in a decrease in the negative pressure of the transition chamber 106, or even a positive pressure in the transition chamber 106. The failure state of the drainage pump 102 is determined based on the amount of negative pressure reduction of the standard negative pressure value.

[0087] During this process, the pressure sensor 107 is used to detect the pressure in the transition chamber 106, which can simultaneously monitor the fault status of the drain pump 102 and the filter element. The structure is simple and does not require separate detection devices. The detection time is short and the accuracy is high. It can promptly inform the user of the status of the drain pump and the filter element during the current drainage process, so that the user can take timely action and improve the working efficiency of the clothing processing equipment.

[0088] The technical solutions shown in this application will now be described in detail through specific embodiments. It should be noted that the following embodiments may exist independently or in combination with each other; identical or similar content will not be repeated in different embodiments.

[0089] Figure 3 This is a flowchart illustrating a fault detection method for a garment processing device provided in an embodiment of this application. Please refer to... Figure 3 The method may include:

[0090] S301. Obtain the pressure value of the transition cavity.

[0091] The executing entity in this application embodiment can be a garment processing device or a control device for the garment processing device installed within the garment processing device. Optionally, the control device for the garment processing device can be implemented by software or by a combination of software and hardware.

[0092] Combination Figure 1 and Figure 2 In this embodiment of the application, the pressure value of the transition cavity 106 is detected by installing a pressure sensor 107 on the side wall of the transition cavity 106.

[0093] In some implementations, the pressure value of the transition chamber 106 detected by the pressure sensor 107 is acquired when the drain pump 102 has been turned on for a preset time and the difference between the input voltage and the rated voltage of the drain pump 102 is within a preset range. This is because before the drain pump 102 is turned on, the washing water has already filled the filter chamber 104, the transition chamber 106, and the drain chamber 105. At this time, the pressure value detected by the pressure sensor 107 in the transition chamber 106 is positive, which can easily lead to false detection. After the drain pump has been turned on for a preset time, the drainage state of the drain pump 102 is stable, which can improve the accuracy of pressure value detection, thereby improving the detection of fault conditions of the drain pump 102 and the filter element.

[0094] In other implementations, the pressure value of the transition chamber 106 detected by the pressure sensor 107 is acquired when the difference between the current power and the rated power of the drain pump 102 is within a preset range, and the difference between the input voltage and the rated voltage of the drain pump 102 is within a preset range. When the current power of the drain pump 102 reaches the rated power, the operating state of the drain pump 102 is relatively stable, which can improve the accuracy of pressure value detection, and thus improve the accuracy of detecting the fault state of the drain pump 102 and the fault state of the filter element 103.

[0095] During the later stages of drainage, the water level in the transition chamber 106 drops significantly, reducing the resistance and power of the drainage pump 102. At this point, the air is connected to the outside environment, and the pressure value detected by the pressure sensor 107 is close to zero. When the drainage pump 102 finishes draining, for garment processing equipment with upward drainage, some water in the drain pipe will flow back, submerging the pressure sensor 107. In this case, the pressure value detected by the pressure sensor 107 will be positive, i.e., greater than zero. Both of these situations can lead to misjudgments of the fault condition. Therefore, monitoring from the start of drainage, obtaining the pressure value of the transition chamber 106 detected by the pressure sensor 107 when the difference between the current power and the rated power of the drainage pump 102 is within a preset range, helps improve the accuracy of fault condition detection.

[0096] Under normal circumstances, the input voltage of the drain pump 102 is the rated voltage of 220V, i.e., the mains voltage. However, sometimes the mains voltage is unstable, or it may be affected by high-power electrical appliances used by users, thus affecting the input voltage of the drain pump 102. Unstable input voltage of the drain pump 102 will also affect the rated power of the drain pump. Therefore, in the two methods of obtaining the transition chamber pressure value mentioned above in this application embodiment, by determining that the difference between the input voltage of the drain pump 102 and the rated voltage is within a preset range, the stability of the input voltage of the drain pump 102 is determined, thereby improving the accuracy of pressure detection and avoiding misjudgment caused by unstable input voltage of the drain pump 102.

[0097] S302. Determine the fault status of the drain pump and the filter element based on the pressure value and the preset target threshold set.

[0098] The target threshold set includes multiple target thresholds. For example, the target threshold combination includes four target thresholds: zero, a first target threshold, a second target threshold, and a third target threshold. This application embodiment does not limit the number of target thresholds within the target threshold set.

[0099] It should be noted that the failure states of a drain pump can be divided into three levels, such as: no failure state, primary failure state, and severe failure state; the failure states of a drain pump can also be divided into two levels, such as primary failure state and severe failure state. The failure states of a filter element can be divided into three levels, such as primary blockage state, secondary blockage state, and tertiary blockage state. This application does not limit the number of failure state levels.

[0100] For example, the fault status of the drain pump and the filter element can be determined based on the relationship between the pressure value and the target threshold in the target threshold set. Alternatively, the fault status of the drain pump and the filter element can be determined based on the mapping relationship between the pressure value and the target threshold in the target threshold set.

[0101] S303. Based on the fault status of the drain pump and the filter element, control the indicator to issue a warning signal.

[0102] The clothing processing device in this application embodiment also includes a prompter, which, based on the fault status of the drain pump and the filter cartridge, controls the prompter to issue a prompt signal to remind the user to perform appropriate processing.

[0103] The indicator can be a display, such as the display screen of a garment processing device, which indicates the fault status of the drain pump and the filter element by displaying patterns, text or lights on the screen.

[0104] The indicator can also be a light strip. For example, a light strip can be set on the control panel of a garment processing device, and by controlling the light strip to light up different numbers of LEDs, the fault status of the drain pump and the filter cartridge can be indicated.

[0105] The indicator can also be a speaker or a voice module. By controlling the speaker or voice module to emit different sound signals, the fault status of the drain pump and the filter element can be characterized.

[0106] Of course, the indicator can also include both light indicators and sound indicators, in which case the indicator signal includes both light and sound signals.

[0107] Understandably, within the preset service life of a newly purchased garment processing device, such as five years, the possibility of drain pump failure is small. At this time, the failure status of the filter element is mainly determined based on the pressure value and the target threshold set.

[0108] This application provides a method for detecting the fault status of a garment processing device. The garment processing device includes a drainage filtration unit, which comprises a housing, a drainage pump, and a filter element. The housing has a filtration chamber, a drainage chamber, and a transition chamber connecting the filtration chamber and the drainage chamber. The filter element is installed in the filtration chamber, and at least a portion of the drainage pump is installed in the drainage chamber. The garment processing device also includes an indicator. This application provides a method for detecting the fault status of a garment processing device. By comparing the pressure value of the transition chamber with a preset target threshold set, the method determines the fault status of the drainage pump and the filter element. Based on the fault status of the drainage pump and the filter element, it controls the indicator to issue a warning signal, allowing the user to take timely action. This application provides a method for simultaneously monitoring the fault status of the drainage pump and the filter element. It has a simple structure, eliminating the need for separate detection devices. The detection time is short, and the accuracy is high. It can promptly alert the user to the fault status of the drainage pump and the filter element during the drainage process, facilitating timely action by the user and improving the working efficiency of the garment processing device.

[0109] exist Figure 3 Based on the embodiments shown, the following, in conjunction with Figure 4 The fault detection methods for the above-mentioned clothing processing equipment are explained in detail.

[0110] Figure 4 This is a schematic diagram illustrating another fault detection method for a garment processing device provided in an embodiment of this application. Please refer to... Figure 4 The method includes:

[0111] S401. Obtain the pressure value of the transition cavity.

[0112] It should be noted that the execution process of step S401 can refer to the execution process of S301, and will not be repeated here.

[0113] S402. Determine whether the pressure value is less than the first target threshold.

[0114] The first target threshold belongs to the target threshold set, and is a negative pressure, meaning it is less than zero. The first target threshold is greater than or equal to the standard negative pressure value, where the standard negative pressure value is the pressure in the transition chamber when the drain pump 102 is operating normally and the filter element 103 is not clogged. For example, the first target threshold is -5, and the standard negative pressure value is -10. This application embodiment does not limit the specific value of the first target threshold.

[0115] When the pressure value in the transition chamber is greater than the first target threshold, i.e. when step S402 is "No", step S403 is executed, i.e. the fault status of the drain pump is determined based on the pressure value and the target threshold set. At this time, the filter element is not faulty.

[0116] When the pressure value in the transition chamber is less than the first target threshold, i.e., when step S402 is "yes", step S404 is executed, i.e., the fault status of the filter element is determined based on the pressure value and the target threshold set. At this time, the drain pump is not faulty.

[0117] S403. Determine whether the pressure value is less than zero.

[0118] It should be noted that zero is also a target threshold, which belongs to the target threshold set. When the pressure value of the transition cavity is greater than or equal to zero, that is, when step S403 is "No", step S405 is executed; when the pressure value of the transition cavity is less than zero, that is, when step S403 is "Yes", step S407 is executed.

[0119] This step can be understood as classifying the fault status of the drainage pump according to the target threshold of "zero".

[0120] S404. Determine whether the pressure value is less than the second target threshold.

[0121] Among them, the second target threshold belongs to the target threshold set, the second target threshold is negative pressure, and the second target threshold is less than the first target threshold, for example, the second target threshold is -15.

[0122] When the pressure value in the transition chamber is greater than or equal to the second target threshold, i.e., when step S404 is "No", step S409 is executed; when the pressure value in the transition chamber is less than the second target threshold, i.e., when step S404 is "Yes", step S411 is executed.

[0123] This step can be understood as classifying the fault status of the filter element according to the second target threshold.

[0124] S405. Determine that the fault status of the drainage pump is a level two fault status.

[0125] This step can be understood as follows: when the pressure value in the transition chamber is greater than zero, the fault condition of the drainage pump is determined to be a level two fault condition, indicating that the power of the drainage pump has been severely degraded and maintenance is required.

[0126] S406, Control the second indicator light to emit a second color light.

[0127] When the drainage pump's fault condition is determined to be a level two fault, a warning signal is issued by the control indicator based on the level two fault condition of the drainage pump, such as a light or sound signal. In some implementations, this is combined with... Figure 5 , Figure 5 This is a schematic diagram of a prompter provided in an embodiment of this application. The prompter includes a first light group, which includes a first indicator light 501 and a second indicator light 502. The prompter issues a prompt signal based on the secondary fault status of the drainage pump, specifically including controlling the second indicator light 502 to emit a second color light, such as red. For example, the second indicator light 502 is a red LED, and the control power supply supplies power to the second indicator light 502 to turn it on, thereby emitting a red light. This embodiment of the application does not limit the color of the second color light.

[0128] Alternatively, the second light group includes a first indicator light that, when the fault condition of the drain pump is determined to be a level two fault condition, controls the first indicator light to emit a second color light.

[0129] S407. Determine that the fault status of the drainage pump is a level one fault status.

[0130] This step can be understood as follows: when the pressure value in the transition chamber is greater than or equal to the first target threshold and the pressure value in the transition chamber is less than zero, the fault state of the drainage pump is determined to be a first-level fault state. This indicates that the power of the drainage pump is reduced, the drainage pump is malfunctioning, and the drainage is slow. The user can repair the drainage pump or not repair it temporarily.

[0131] S408, Control the first indicator light to emit the first color light.

[0132] When the drainage pump's fault condition is determined to be a Level 1 fault, a warning signal is issued by the control indicator based on the Level 1 fault condition of the drainage pump, such as a light or sound signal. In some implementations, this is combined with... Figure 5 The system issues a warning signal based on the primary fault status of the drainage pump, specifically including controlling the first indicator light 501 to emit a first color light, such as yellow. For example, the first indicator light 502 is a yellow LED, and the control power supply supplies power to the first indicator light 501 to turn it on, thereby emitting a yellow light. This application embodiment does not limit the color of the first color light. The first color light and the second color light may have different colors.

[0133] Alternatively, when the second light group includes a first indicator light, if the drain pump's fault condition is determined to be a level two fault condition, the first indicator light is controlled to emit a first color light. In this case, the first color light is different from the second color light.

[0134] It is understandable that when the drain pump is in a first-level or second-level fault state, the filter element is not faulty; when the filter element is in a first-level blockage state, a second-level blockage state, or a third-level blockage state, the drain pump is not faulty.

[0135] S409. Determine that the fault condition of the filter element is a level one blockage.

[0136] This step can be understood as follows: when the pressure value of the transition chamber is greater than or equal to the second target threshold and the pressure value of the transition chamber is less than the first target threshold, the filter element is determined to be in a first-level blockage state, indicating that the filter element is slightly blocked at this time, which can be ignored and not dealt with temporarily.

[0137] S410, Control the third indicator light to emit a third color light.

[0138] When the filter element's fault condition is determined to be a primary blockage, the system controls the indicator to issue a warning signal, such as a light or sound signal, based on the primary blockage status. In some implementations, this is combined with... Figure 5 The indicator also includes a second light group, which includes a third indicator light 503, a fourth indicator light 504, and a fifth indicator light 505. In this embodiment, the third indicator light 503, the fourth indicator light 504, and the fifth indicator light 505 are all rectangular lights, while the first indicator light 501 and the second indicator light 502 are both circular lights.

[0139] The system controls the primary clogging status of the filter element to issue a warning signal, specifically including controlling the third indicator light 503 to emit a third color light, such as green. For example, the third indicator light 503 is a green LED, and the control power supply supplies power to the third indicator light 503 to turn it on, thereby emitting a green light. This application embodiment does not limit the color of the third color light. The color of the third color light can be different from both the first and second color lights.

[0140] Alternatively, the second light group includes a second indicator light that, when the filter element is determined to be in a first-level blockage state, controls the second indicator light to emit a third color light.

[0141] S411. Determine whether the pressure value is less than the third target threshold.

[0142] Among them, the third target threshold belongs to the target threshold set. The third target threshold is negative pressure and is less than the second target threshold. For example, the third target threshold is -20.

[0143] When the pressure value in the transition chamber is greater than or equal to the third target threshold, i.e., when step S411 is "No", step S412 is executed; when the pressure value in the transition chamber is less than the third target threshold, i.e., when step S411 is "Yes", step S414 is executed.

[0144] This step can be understood as further classifying the fault status of the filter element according to the third target threshold.

[0145] S412. Determine that the fault state of the filter element is a secondary blockage state.

[0146] This step can be understood as follows: when the pressure value of the transition chamber is greater than or equal to the third target threshold and the pressure value of the transition chamber is less than the second target threshold, the filter element is determined to be in a secondary blockage state. This indicates that the filter element is blocked but not seriously, and can be cleaned. It can be ignored and not dealt with temporarily.

[0147] S413. Control the fourth indicator light to emit a fourth color light.

[0148] When the filter element's fault condition is determined to be secondary blockage, the system controls the indicator to issue a warning signal, such as a light or sound signal, based on the secondary blockage status. In some implementations, this is combined with... Figure 5 The system controls the indicator to issue a warning signal based on the secondary clogging status of the filter element. Specifically, this includes controlling the fourth indicator light 504 to emit a fourth color light, such as yellow. For example, the fourth indicator light 504 is a yellow LED light, and the control power supply supplies power to the fourth indicator light 504 to turn it on, thereby emitting a yellow light.

[0149] Because the fourth indicator light 504 has a different shape than the first indicator light 501, they can be distinguished even if both emit yellow light. Of course, the fourth color light can be a different color from the other colors.

[0150] Alternatively, the second light group includes a second indicator light that, when the filter element's fault condition is determined to be a secondary blockage, controls this second indicator light to emit a fourth color light. In this case, the fourth color light is a different color from the third color light.

[0151] S414. Determine that the filter element is in a level three blockage state.

[0152] This step can be understood as follows: when the pressure value of the transition chamber is less than the third target threshold, the filter element is determined to be in a level three blockage state, indicating that the filter element is severely blocked and must be cleaned; otherwise, the filter element will be completely blocked.

[0153] S415. Control the fifth indicator light to emit a fifth color light.

[0154] When the filter element's fault condition is determined to be a level 3 blockage, the system controls the indicator to issue a warning signal, such as a light or sound signal, based on the level 3 blockage status. In some implementations, this is combined with... Figure 5The system controls the indicator to issue a warning signal based on the three-stage clogging status of the filter element. Specifically, this includes controlling the fifth indicator light 505 to emit a fifth color light, such as red. For example, the fifth indicator light 505 is a red LED, and the control power supply provides power to the fifth indicator light 505 to turn it on, thereby emitting a red light.

[0155] Because the fifth indicator light 505 and the second indicator light 502 have different shapes, they can be distinguished even if both emit red light. Of course, the fifth indicator light can be a different color from the other indicator lights.

[0156] Alternatively, the second light group includes a second indicator light that, when the filter element's fault condition is determined to be a level 3 blockage, controls this second indicator light to emit a fifth color light. In this case, the fifth color light is different from the third and fourth color lights.

[0157] The fault detection method for clothing processing equipment provided in this application compares the pressure value with a first target threshold, zero, a second target threshold, and a third target threshold to classify the fault status of the drain pump and the filter element. Based on the different levels of the fault status of the drain pump and the filter element, different indicator lights emit colored lights, allowing the user to intuitively determine the fault status of the drain pump and the filter element based on the position and / or color of the indicator lights. This provides accurate and reliable indication of the status of the drain pump and the filter element, improving the accuracy of fault detection.

[0158] Figure 6 This is a schematic diagram of the structure of a fault detection device for a garment processing equipment provided in an embodiment of this application. The fault detection device 600 for the garment processing equipment can be installed in the garment processing equipment; combined with... Figure 1 and Figure 2 The garment processing equipment includes a drainage filtration device, which comprises a housing 101, a drainage pump 102, and a filter element 103. The housing 101 has a filter chamber 104, a drainage chamber 105, and a transition chamber 106 connecting the filter chamber 104 and the drainage chamber 105. The filter element 103 is installed in the filter chamber 104, and at least a portion of the drainage pump 102 is installed in the drainage chamber 105. The garment processing equipment also includes an indicator.

[0159] Please see Figure 6 The fault detection device 600 of the garment processing equipment may include an acquisition module 601, a determination module 602, and a control module 603, wherein:

[0160] The acquisition module 601 is used to acquire the pressure value of the transition cavity;

[0161] The determining module 602 is used to determine the fault status of the drain pump and the fault status of the filter element based on the pressure value and a preset set of target thresholds; the set of target thresholds includes multiple target thresholds.

[0162] The control module 603 is used to control the indicator to issue a prompt signal based on the fault status of the drain pump and the fault status of the filter element.

[0163] In some possible implementations, the determining module 602 is specifically used for,

[0164] When the pressure value is greater than or equal to a first target threshold, the fault state of the drainage pump is determined based on the pressure value and the target threshold set; the first target threshold belongs to the target threshold set, and the first target threshold is less than zero;

[0165] When the pressure value is less than the first target threshold, the fault state of the filter element is determined based on the pressure value and the target threshold set.

[0166] In some possible implementations, the determining module 602 is specifically used for,

[0167] If the pressure value is greater than or equal to the first target threshold and the pressure value is less than or equal to zero, the fault state of the drainage pump is determined to be a level one fault state.

[0168] When the pressure value is greater than zero, the fault state of the drainage pump is determined to be a level two fault state.

[0169] In some possible implementations, the indicator includes a first light group, which includes a first indicator light and a second indicator light;

[0170] The control module 603 is specifically used to control the first indicator light to emit a first color light when the fault state of the drainage pump is determined to be a first-level fault state; and to control the second indicator light to emit a second color light when the fault state of the drainage pump is determined to be a second-level fault state.

[0171] In some possible implementations, the determining module 602 is specifically used to determine the fault state of the filter element as a first-level blockage state when the pressure value is greater than or equal to the second target threshold and less than the first target threshold.

[0172] When the pressure value is greater than or equal to the third target threshold and less than the second target threshold, the filter element is determined to be in a secondary blockage state.

[0173] When the pressure value is less than the third target threshold, the filter element is determined to be in a level three blockage state.

[0174] Wherein, both the second target threshold and the third target threshold belong to the target threshold set, and the second target threshold is less than the first target threshold, and the third target threshold is less than the second target threshold.

[0175] In some possible implementations, the indicator further includes a second light group, which includes a third indicator light, a fourth indicator light, and a fifth indicator light; the control module 603 is specifically used to control the third indicator light to emit a third color light when the filter element is first-stage blocked; to control the fourth indicator light to emit a fourth color light when the filter element is second-stage blocked; and to control the fifth indicator light to emit a fifth color light when the filter element is third-stage blocked.

[0176] In some possible implementations, the acquisition module 601 is specifically used to acquire the pressure value of the transition chamber after the drain pump has been turned on for a preset time; or, when it is determined that the difference between the current power of the drain pump and the rated power of the drain pump is within a preset range, the pressure value of the transition chamber is acquired.

[0177] The fault detection device for clothing processing equipment provided in this application embodiment can execute the technical solution shown in the above method embodiment. Its principle and beneficial effects are similar, and will not be described again here.

[0178] Figure 7 This is a schematic diagram of the hardware structure of the garment processing device provided in an embodiment of this application. Please refer to [link / reference]. Figure 7 The garment processing device 700 may include a processor 701 and a memory 702, wherein the processor 701 and the memory 702 can communicate; for example, the processor 701 and the memory 702 communicate via a communication bus 703, the memory 702 is used to store a computer program, and the processor 701 is used to call the computer program in the memory 702 to execute the fault detection method of the garment processing device shown in any of the above method embodiments.

[0179] Optionally, the garment handling device 700 may also include a communication interface, which may include a transmitter and / or a receiver.

[0180] Optionally, the aforementioned processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), etc. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of this application can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules within the processor.

[0181] This application provides a computer-readable storage medium storing computer-executable instructions; when executed by a processor, the computer-executable instructions are used to implement the fault detection method for the clothing processing equipment as described in any of the above embodiments.

[0182] This application provides a computer program product, which includes a computer program that, when executed by a processor, implements the fault detection method for clothing processing equipment as described in any of the above embodiments.

[0183] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0184] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0185] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or in the form of hardware plus software functional units.

[0186] The integrated units implemented as software functional units described above can be stored in a computer-readable storage medium. These software functional units, stored in a storage medium, include several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute some steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0187] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is merely an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the device described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0188] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A fault detection method for clothing processing equipment, characterized in that, The garment processing equipment includes a drainage filtration device, which includes a housing, a drainage pump, and a filter element. The housing has a filter chamber, a drainage chamber, and a transition chamber connecting the filter chamber and the drainage chamber. The filter element is installed in the filter chamber, and at least a portion of the drainage pump is installed in the drainage chamber. The garment processing equipment also includes an indicator; The method includes: The pressure value of the transition chamber is obtained when the drain pump is turned on for a preset time and the difference between the input voltage and the rated voltage of the drain pump is within a preset range; or, the pressure value of the transition chamber is obtained when it is determined that the difference between the current power and the rated power of the drain pump is within a preset range and the difference between the input voltage and the rated voltage of the drain pump is within a preset range. If the pressure value is greater than or equal to the first target threshold and the pressure value is less than or equal to zero, the fault state of the drainage pump is determined to be a level one fault state. When the pressure value is greater than or equal to zero, the fault state of the drainage pump is determined to be a level two fault state; When the pressure value is greater than or equal to the second target threshold and less than the first target threshold, the filter element is determined to be in a first-level blockage state. When the pressure value is greater than or equal to the third target threshold and less than the second target threshold, the filter element is determined to be in a secondary blockage state. When the pressure value is less than the third target threshold, the filter element is determined to be in a level three blockage state. Wherein, both the second target threshold and the third target threshold belong to the target threshold set, and the second target threshold is less than the first target threshold, and the third target threshold is less than the second target threshold; the target threshold set includes multiple target thresholds; Based on the fault status of the drain pump and the filter element, the indicator is controlled to issue a warning signal.

2. The method according to claim 1, characterized in that, The indicator includes a first light group, which includes a first indicator light and a second indicator light. The step of controlling the indicator to issue a prompt signal based on the fault status includes: When the fault condition of the drainage pump is determined to be a level one fault condition, the first indicator light is controlled to emit a first color light; When the fault condition of the drainage pump is determined to be a level two fault condition, the second indicator light is controlled to emit a second color light.

3. The method according to claim 1, characterized in that, The indicator also includes a second light group, which includes a third indicator light, a fourth indicator light, and a fifth indicator light; The step of controlling the indicator to issue a prompt signal based on the fault status includes: When the filter element is first-stage blocked, the third indicator light is controlled to emit a third color light; When the filter element is blocked in two stages, the fourth indicator light is controlled to emit a fourth color light; When the filter element is three-stage clogged, the fifth indicator light is controlled to emit a fifth color light.

4. A fault diagnosis device for a garment processing equipment, wherein the fault diagnosis device for the garment processing equipment is used to implement the fault detection method for the garment processing equipment according to any one of claims 1-3, characterized in that, The garment processing equipment includes a drainage filtration device, which includes a housing, a drainage pump, and a filter element. The housing has a filtration chamber, a drainage chamber, and a transition chamber connecting the filtration chamber and the drainage chamber. The filter element is installed in the filtration chamber, and at least a portion of the drainage pump is installed in the drainage chamber. The garment processing equipment also includes an indicator. The device includes an acquisition module, a determination module, and a control module. The acquisition module is used to acquire the pressure value of the transition cavity; The determining module is used to determine the fault status of the drain pump and the filter element based on the pressure value and a preset set of target thresholds; the set of target thresholds includes multiple target thresholds. The control module is used to control the indicator to issue a warning signal based on the fault status of the drain pump and the filter element.

5. A garment processing device, characterized in that, include: Processor and memory; The memory is used to store computer programs; The processor is used to execute the computer program stored in the memory to implement the fault detection method for the clothing processing equipment as described in any one of claims 1 to 3.

6. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the fault detection method for the clothing processing equipment according to any one of claims 1 to 3.

7. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the fault detection method for the clothing processing equipment as described in any one of claims 1 to 3.

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