Control method and control device of clothes treatment equipment, equipment and medium

Abstract

The invention relates to a control method, a control device, equipment and a medium of clothes treatment equipment, the clothes treatment equipment comprises a heat pump system, the heat pump system is used for realizing a drying function of the clothes treatment equipment, and the heat pump system comprises a compressor; the control method comprises the following steps: acquiring a target temperature after the compressor is started for a first preset duration; determining that the target temperature meets a preset condition, and controlling the compressor to stop running. Therefore, according to the control method, on the basis of the temperature difference between the first target temperature and the second target temperature, when the temperature difference meets the preset condition, it is indicated that the compressor is possibly in the liquid impact state, and the compressor is controlled to stop running, so that damage and deformation of parts such as pipelines and the compressor caused by liquid impact are avoided, and the reliability of the heat pump system is guaranteed.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of clothes treatment, and in particular to a control method and control device of a clothes treatment apparatus, an apparatus, and a medium. BACKGROUND

[0002] With the improvement of people's quality of life, people have more and more functional requirements for clothes treatment apparatuses, such as requiring clothes treatment apparatuses to have washing, drying, lint removal, or aromatherapy functions.

[0003] A clothes treatment apparatus with a drying function dries clothes by supplying hot air to a space containing clothes. In related technologies, a clothes treatment apparatus with a drying function includes a heat pump system, which includes components such as a compressor, a condenser, and an evaporator. During the drying of clothes, the circulation of refrigerant in the heat pump system is used to achieve clothes drying, and the heat pump system has advantages such as low efficiency, low energy consumption, and energy saving and environmental protection. However, when the heat pump system is subjected to liquid impact, it will cause great impact on the pipes and parts such as the compressor of the heat pump system, resulting in serious consequences such as deformation, failure, and cracking of the parts. SUMMARY

[0004] To solve the above technical problems, the present disclosure provides a control method and control device of a clothes treatment apparatus, an apparatus, and a medium.

[0005] In a first aspect, the present disclosure provides a control method of a clothes treatment apparatus, the clothes treatment apparatus including a heat pump system, the heat pump system being used to realize a drying function of the clothes treatment apparatus, the heat pump system including a compressor; the control method including:

[0006] obtaining a first target temperature and a second target temperature after the compressor is started for a first preset time length;

[0007] determining that a temperature difference between the first target temperature and the second target temperature satisfies a preset condition, and controlling the compressor to stop running.

[0008] Optionally, the determination that the temperature difference between the first target temperature and the second target temperature satisfies the preset condition includes:

[0009] determining an absolute value of the temperature difference based on the first target temperature and the second target temperature;

[0010] determining that the preset condition is satisfied based on the absolute value of the temperature difference being less than or equal to a first preset temperature and a duration being greater than or equal to a second preset time length.

[0011] Optionally, the heat pump system further includes a condenser and a capillary tube, an exhaust port of the compressor is connected to an inlet of the condenser, and an outlet of the condenser is connected to the capillary tube.

[0012] The first target temperature comprises a temperature of refrigerant at any position between an exhaust port of the compressor and an inlet of the condenser;

[0013] The second target temperature comprises a temperature of refrigerant at any position between an outlet of the condenser and the capillary tube.

[0014] Optionally, the first preset temperature is greater than or equal to 1℃, and the first preset temperature is less than or equal to 5℃;

[0015] The first preset time length is greater than or equal to 5min, and the first preset time length is less than or equal to 20min;

[0016] The second preset time length is greater than or equal to 5min, and the second preset time length is less than or equal to 10min.

[0017] Optionally, after the control of the compressor to stop running, the control method further comprises:

[0018] When the compressor stops running for a time length greater than or equal to a third preset time length, restarting the compressor, and performing the acquisition of the first target temperature and the second target temperature after the compressor is started for a first preset time length.

[0019] Optionally, after the determination that the temperature difference between the first target temperature and the second target temperature meets a preset condition, the control method further comprises:

[0020] Determining that the liquid strike frequency is accumulated by one; wherein the initial value of the liquid strike frequency is equal to zero;

[0021] Based on the liquid strike frequency being greater than or equal to a preset number of times, controlling the compressor to stop running, and the compressor is not started again during the execution of the drying program.

[0022] Optionally, the third preset time length is greater than or equal to 20min, and the third preset time length is less than or equal to 40min;

[0023] The preset number of times is greater than or equal to 2 times.

[0024] In a second aspect, the disclosure also provides a control device of a clothes treatment apparatus, the clothes treatment apparatus comprising a heat pump system for realizing a drying function of the clothes treatment apparatus, the heat pump system comprising a compressor; the control device comprising:

[0025] An acquisition module for acquiring a target temperature after the compressor is started for a first preset time length;

[0026] A control module for determining that the target temperature meets a first preset condition, and controlling the compressor to stop running.

[0027] In a third aspect, the disclosure also provides a laundry treating apparatus, comprising a processor and a memory, the processor executes the steps of the control method of any one of the laundry treating apparatuses by invoking programs or instructions stored in the memory.

[0028] In a fourth aspect, the disclosure also provides a computer readable storage medium storing programs or instructions, which cause a computer to execute the steps of the control method of any one of the laundry treating apparatuses.

[0029] Compared with the prior art, the technical solutions provided by the disclosure have the following advantages:

[0030] The control method, control device, apparatus and medium of the laundry treating apparatus provided by the disclosure, the laundry treating apparatus comprises a heat pump system, the heat pump system is used to realize the drying function of the laundry treating apparatus, and the heat pump system comprises a compressor; the control method comprises the following steps: obtaining a target temperature of the compressor after the compressor is started for a first preset time length; determining that the target temperature meets a preset condition, and controlling the compressor to stop running. Therefore, the control method takes the temperature difference between the first target temperature and the second target temperature as the basis, when the temperature difference meets the preset condition, it indicates that the compressor may be in the liquid strike state, and the compressor is controlled to stop running, thereby avoiding the damage and deformation of the pipeline and the compressor caused by the liquid strike, and the reliability of the heat pump system is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0031] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the disclosure and serve to explain the principles of the disclosure together with the specification.

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the disclosure or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced hereinafter. Obviously, for those skilled in the art, other drawings can also be obtained based on these drawings without creative labor.

[0033] Figure 1 A working process schematic diagram of the laundry treating apparatus provided by the embodiments of the disclosure is provided.

[0034] Figure 2 A flowchart schematic diagram of the control method of the laundry treating apparatus provided by the embodiments of the disclosure is provided.

[0035] Figure 3 For Figure 2 A detailed flowchart schematic diagram of S220 in the control method of the laundry treating apparatus is shown.

[0036] Figure 4Another flowchart of a control method of a laundry treating apparatus according to an embodiment of the disclosure is provided.

[0037] Figure 5 A structure diagram of a control device of a laundry treating apparatus according to an embodiment of the disclosure is provided.

[0038] Figure 6 A structure diagram of a laundry treating apparatus according to an embodiment of the disclosure is provided. DETAILED DESCRIPTION

[0039] In order to more clearly understand the above-mentioned purposes, features and advantages of the disclosure, the solutions of the disclosure will be further described below. It should be noted that the embodiments of the disclosure and the features in the embodiments can be combined with each other without conflict.

[0040] In the following description, many specific details are set forth in order to provide a thorough understanding of the disclosure, but the disclosure can also be implemented in other ways different from those described herein; obviously, the embodiments in the description are only some of the embodiments of the disclosure, not all the embodiments.

[0041] The control method, control device, apparatus and medium of the laundry treating apparatus according to the embodiments of the disclosure will be exemplarily described below with reference to the accompanying drawings.

[0042] As shown in Figure 1 , a working process diagram of a laundry treating apparatus according to an embodiment of the disclosure is provided. Referring to Figure 1 , the laundry treating apparatus includes a laundry treating tub for accommodating laundry and a heat pump system, the heat pump system including a compressor, a condenser and an evaporator, the condenser and the evaporator being located in an air duct of the laundry treating apparatus.

[0043] Among them, Figure 1 The circulating path of circulating air is shown, specifically: dry hot air enters the laundry treating tub, the dry hot air contacts the load to be dried, and the water in the load to be dried is taken away in the form of water vapor, and the dry hot air becomes humid hot air; the humid hot air enters the evaporator after passing through the filter screen, exchanges heat with the evaporator, so that the water vapor becomes condensed water, and the humid hot air becomes dry cold air; the dry cold air enters the condenser and absorbs the heat released by the condenser to become dry hot air, and the dry hot air reenters the laundry treating tub to realize drying of the load to be dried in the laundry treating tub.

[0044] Figure 1The circulation path of the refrigerant in the heat pump system is also shown, specifically: the compressor pressurizes and heats the refrigerant, then the high-temperature and high-pressure refrigerant enters the condenser and releases heat, the circulating air in the air duct absorbs the heat and becomes dry hot air; the refrigerant enters the capillary tube after leaving the condenser, the pressure and temperature are rapidly reduced, and then enters the evaporator, the low-temperature refrigerant in the evaporator exchanges heat with the humid hot air in the air duct, changes the humid hot air after the load into dry cold air, and the water vapor in the clothes condenses into small water droplets and is collected by the water pan; the low-temperature refrigerant reenters the compressor after leaving the evaporator and becomes high-temperature refrigerant again. The above heat pump system uses the operation of the refrigerant and cooperates with the rotation of the clothes treatment barrel in the clothes treatment equipment to realize the clothes drying effect.

[0045] The clothes treatment equipment includes a clothes dryer, a washer-dryer, and all clothes treatment equipment with a clothes drying function known to those skilled in the art.

[0046] In some embodiments, as Figure 2 shown, a flowchart of a control method of a clothes treatment equipment provided by an embodiment of the present disclosure is shown. Referring to Figure 2 , the control method is applied to the clothes treatment equipment, and the control method includes the following steps:

[0047] In S210, a first target temperature and a second target temperature after the compressor is started for a first preset time length are obtained.

[0048] After the compressor is started, the compressor starts to heat the refrigerant, the temperature of the exhaust port of the compressor rises rapidly, and the temperature of the outlet of the condenser rises slowly. In some embodiments, the condition for determining that the compressor is started is that the working current of the compressor is not equal to 0A, or the moment when the execution time length of the drying program reaches a third preset time length is the starting moment of the compressor.

[0049] The target temperature is a temperature of the refrigerant at different positions in the heat pump system, including an exhaust temperature of the compressor and / or an outlet temperature of the condenser, and also includes other temperature indicators known to those skilled in the art, which are not limited herein. The target temperature can be acquired by setting a temperature sensor at a specific position and collecting the target temperature by using the temperature sensor. For example, the temperature sensor is set within a preset distance range of the exhaust port of the compressor to collect the exhaust temperature of the compressor, or the temperature sensor is set at the outlet of the condenser to collect the outlet temperature of the condenser. The type of the temperature sensor is not limited in the embodiments of the present disclosure, and all types of temperature sensors known to those skilled in the art can be used, for example, a Negative Temperature Coefficient (NTC) thermistor or a MicroelectroMechanical Systems (MEMs) sensor.

[0050] The target temperature includes a first target temperature T1 and a second target temperature T2.

[0051] In some embodiments, the first target temperature T1 is a temperature of the refrigerant at any position between the exhaust port of the compressor and the inlet of the condenser. For example, the first target temperature T1 includes the exhaust temperature of the compressor, that is, the temperature of the refrigerant at the exhaust port of the compressor. For another example, the first target temperature T1 includes the inlet temperature of the condenser, that is, the temperature of the refrigerant at the inlet of the condenser.

[0052] The second target temperature T2 is a temperature of the refrigerant at any position between the outlet of the condenser and the capillary tube. For example, the second target temperature T2 includes the outlet temperature of the condenser, that is, the temperature of the refrigerant at the outlet of the condenser.

[0053] During the clothes drying process, the refrigerant in the condenser exchanges heat with the circulating air, the refrigerant in the condenser releases heat, and the circulating air absorbs heat. Therefore, under normal working conditions, the first target temperature T1 is greater than the second target temperature T2.

[0054] S220, determining that a temperature difference between the first target temperature and the second target temperature meets a preset condition, and controlling the compressor to stop running.

[0055] Under normal working conditions, the refrigerant usually circulates in the heat pump system in the form of gas. When liquid refrigerant enters the compressor cylinder, the suction interlamination will be excessively bent or broken due to the incompressibility of the liquid refrigerant. When the liquid that is not timely evaporated and discharged in the compressor cylinder is compressed by the piston, a huge pressure will be generated in the cylinder instantaneously and the stressed parts will be deformed or damaged, that is, liquid hammer occurs. The liquid hammer causes the compressor to work abnormally, which directly affects the heating efficiency of the heat pump system and causes the temperature of the refrigerant to change.

[0056] In this embodiment, the temperature difference between the first target temperature T1 and the second target temperature T2 is taken as the basis for judgment. When the temperature difference meets the preset condition, it indicates that the compressor is abnormal and may be in a liquid hammer state, and the compressor is controlled to stop running, thereby avoiding damage and deformation of parts such as pipelines and compressors caused by liquid hammer. When the temperature difference does not meet the preset condition, it indicates that the compressor is in a normal working condition, and the compressor is controlled to continue running until the drying program ends.

[0057] It should be noted that in the embodiments of the present disclosure, the compressor stops running, which does not affect the drying program. The drying program continues to be executed, that is, the laundry treatment drum and the fan impeller continue to rotate under the driving of the motor.

[0058] The control method of the laundry treatment device provided by the present disclosure includes: obtaining a target temperature after the compressor is started for a first preset time length Δt1; determining that the target temperature meets a preset condition, and controlling the compressor to stop running. Thus, the control method takes the temperature difference between the first target temperature T1 and the second target temperature T2 as the basis. When the temperature difference meets the preset condition, it indicates that the compressor may be in a liquid hammer state, and the compressor is controlled to stop running, thereby avoiding damage and deformation of parts such as pipelines and compressors caused by liquid hammer, and ensuring the reliability of the heat pump system.

[0059] In some embodiments, the first preset time length Δt1 is greater than or equal to 5 min, and the first preset time length Δt1 is less than or equal to 20 min.

[0060] At the beginning or initial stage of the start of the compressor, the first target temperature T1 and the second target temperature T2 are close to the ambient temperature, and if the temperature difference between the first target temperature T1 and the second target temperature T2 is used as a basis for judgment, the accuracy of the judgment result is low, and misjudgment is likely to occur. Therefore, the first target temperature T1 and the second target temperature T2 are obtained after the compressor is started for a first preset time length Δt1, so as to improve the accuracy of the judgment result. However, the value range of the first preset time length Δt1 should not be too long. If the first preset time length Δt1 is too long, the control method may not be completed after the drying program is executed, that is, the liquid-impact protection of the compressor cannot be realized during the execution of the drying program, or the execution time length of the drying program is prolonged in order to realize the liquid-impact protection of the compressor, which not only increases the energy consumption but also is not conducive to improving the customer experience.

[0061] In the embodiment, the first preset time length Δt1 is set in an appropriate range, so as to ensure the accuracy of the detection result and realize the liquid-impact protection of the compressor during the execution of the drying program.

[0062] For example, the first target temperature T1 and the second target temperature T2 are obtained after the compressor is started for 10 minutes.

[0063] In some embodiments, as shown in Figure 3 The step of “S120, determining whether the temperature difference between the first target temperature and the second target temperature meets a preset condition” includes the following steps:

[0064] S321, determining the absolute value of the temperature difference based on the first target temperature and the second target temperature.

[0065] S322, determining that the preset condition is met based on that the absolute value of the temperature difference is less than or equal to a first preset temperature and the duration is greater than or equal to a second preset time length.

[0066] In combination with the foregoing, under normal working conditions, the first target temperature T1 is greater than the second target temperature T2, and the absolute value of the temperature difference between the two temperatures is greater than the first preset temperature ΔT, that is, |T1-T2|>ΔT. When the absolute value of the temperature difference between the two temperatures is less than or equal to the first preset temperature, that is, |T1-T2|≤ΔT, it indicates that the compressor is abnormal and is likely to be in a liquid-impact state. In order to prevent misjudgment, a time judgment condition is introduced. When the absolute value of the temperature difference is less than or equal to the first preset temperature ΔT, the duration t2 is compared with the second preset time length Δt2. If the duration is greater than or equal to the second preset time length, it indicates that the compressor is in a liquid-impact state, and the compressor is controlled to stop running.

[0067] In some embodiments, the first preset temperature AT is greater than or equal to 1℃, and the first preset temperature AT is less than or equal to 5℃; the second preset time length At2 is greater than or equal to 5min, and the second preset time length At2 is less than or equal to 10min.

[0068] In this embodiment, the second preset time length At2 is set in an appropriate range, which not only ensures the accuracy of the detection result, but also ensures that the liquid knock protection of the compressor is realized during the execution of the drying program.

[0069] For example, the absolute value of the temperature difference between the first target temperature T1 and the second target temperature T2 is less than or equal to 2℃ (i.e. |T1-T2|≤2℃), and the duration t2 is greater than or equal to 5min, the compressor is controlled to stop running; wherein the first preset temperature AT is equal to 2℃, and the second preset time length At2 is equal to 5min.

[0070] For example, the first target temperature T1 is the exhaust port temperature of the compressor, and the second target temperature is the outlet temperature of the condenser. When the absolute value of the difference between the exhaust port temperature and the outlet temperature is less than or equal to 2℃ (i.e. |exhaust port temperature-outlet temperature|≤2℃), and the duration is greater than or equal to 5min, it indicates that the compressor is liquid knock, and the compressor is controlled to stop running.

[0071] In some embodiments, before S210 "obtaining the first target temperature and the second target temperature after the compressor is started for a first preset time length", the control method further comprises the following steps:

[0072] The time point when the execution time length of the drying program is equal to the fourth preset time length is defined as the start time point of the compressor.

[0073] After the start of the drying program, the controller of the clothes treatment apparatus sends a start instruction to the compressor. The compressor cannot start immediately, but needs to wait for a certain time length before starting. After the compressor starts, it can start heating. In this embodiment, the waiting time length of the compressor is defined as the fourth preset time length At4. The time point when the execution time length of the drying program is equal to the fourth preset time length At4 is the start time point of the compressor.

[0074] In some embodiments, the fourth preset time length At4 is greater than or equal to 1min, and the fourth preset time length At4 is less than or equal to 3min.

[0075] For example, the fourth preset time length At4 is equal to 3min.

[0076] In some embodiments, after "controlling the compressor to stop running", the control method further comprises the following steps:

[0077] When the compressor has been stopped for a length of time greater than or equal to the third preset length of time, the compressor is restarted, and the target temperature after the compressor has been started for the first preset length of time is obtained.

[0078] If the compressor is determined to be in the liquid-punching state only through one preset condition determination, and the compressor is controlled to be stopped, the accuracy of the determination result is low, and there is a possibility of misjudgment. Meanwhile, after the compressor is stopped, no refrigerant is pressurized and warmed, which has a great impact on the drying effect.

[0079] In this embodiment, when the compressor has been stopped for a length of time t3 greater than or equal to the third preset length of time Δt3, the compressor is restarted again, and after the compressor has been started for the first preset length of time Δt1, the first target temperature T1 and the second target temperature T2 are obtained, and the method steps mentioned above are repeatedly performed.

[0080] In some embodiments, after it is determined that the temperature difference between the first target temperature and the second target temperature meets the preset condition, the control method further includes:

[0081] The liquid-punching frequency is determined to be accumulated by one;

[0082] Based on the liquid-punching frequency being greater than or equal to the preset frequency, the compressor is controlled to be stopped, and the compressor is not restarted during the execution of the drying program.

[0083] In this embodiment, the calculation formula of the liquid-punching frequency is: N i+1 = N i +1;

[0084] wherein i≥0, and i is an integer. The initial value N0 of the liquid-punching frequency is equal to zero, i.e., N0=0. After the temperature difference between the first target temperature and the second target temperature is determined to meet the preset condition for the first time, the corresponding liquid-punching frequency is: N1=N0+1=1. After the temperature difference meets the preset condition each time, the value of the liquid-punching frequency is updated, and the updated liquid-punching frequency is equal to the liquid-punching frequency before the update plus one.

[0085] After it is determined that the liquid-punching frequency is accumulated by one, the updated liquid-punching frequency is compared with the preset frequency. When the updated liquid-punching frequency is greater than or equal to the preset frequency, it is indicated that the compressor is highly likely to be in the liquid-punching state, the accuracy of the determination result is high at this time, the compressor is controlled to be stopped, and the compressor is not restarted during the execution of the entire drying program, so as to prevent the liquid-punching from causing damage and deformation of the pipeline and the compressor of the heat pump system, and to improve the reliability of the heat pump system.

[0086] In some embodiments, the third preset length of time Δt3 is greater than or equal to 20 min, and the third preset length of time Δt3 is less than or equal to 40 min.

[0087] Wherein, after the compressor stops running, although the compression and temperature rise of the refrigerant is stopped, the first target temperature T1 does not immediately decrease, the control compressor stop running time t3 is greater than or equal to the third preset time Δt3, and the stop running time t3 is long enough to ensure that the first target temperature T1 decreases to the ambient temperature. Meanwhile, the third preset time Δt3 should not be too long, if the fourth preset time Δt3 is too long, the compressor is in a stop running state for a long time during the execution of the drying program, which leads to incomplete drying and affects the drying effect.

[0088] Exemplarily, the third preset time Δt3 is equal to 30 min.

[0089] In some embodiments, the preset number of times is greater than or equal to 2 times.

[0090] Exemplarily, the preset number of times is equal to 2 times, that is, the determination of the preset condition is performed twice at most during the execution of the drying program, if the number of times that the absolute value of the temperature difference between the first target temperature T1 and the second target temperature T2 is less than or equal to the first preset temperature ΔT (i.e. |T1-T2|≤ΔT) is 2 times, that is, the number of liquid strikes is 2 times, then the compressor is controlled to stop running at the second time, and the compressor is not started again during the execution of the drying program.

[0091] Exemplarily, as shown in Figure 4 The control method comprises the following steps:

[0092] S400, start.

[0093] In this step, the execution time t3 of the drying program is counted from the start time of the drying program.

[0094] S401, determine whether the compressor is started.

[0095] In this embodiment, when the execution time t4 of the drying program is greater than or equal to the fourth preset time Δt4, it is determined that the compressor is started, that is, the determination result is "yes", and S402 is executed; when the execution time t4 of the drying program is less than the fourth preset time Δt4, it is determined that the compressor has not been started, that is, the determination result is "no", and the execution time t4 of the drying program is continuously counted until the determination result of this step is "yes".

[0096] S402, count the start time t1 of the compressor.

[0097] In this step, the start time t1 of the compressor is counted from the time when it is determined that the compressor is started.

[0098] S403, t1≥Δt1.

[0099] In this step, the starting time t1 of the compressor is compared with the first preset time Δt1. When the starting time t1 of the compressor is greater than or equal to the first preset time Δt1, that is, the determination result is "yes", S404 is executed; when the starting time t1 of the compressor is less than the first preset time Δt1, that is, the determination result is "no", S402 is executed.

[0100] S404, the first target temperature T1 and the second target temperature T2 are obtained.

[0101] In this step, the first target temperature T1 and the second target temperature T2 are obtained by using the temperature sensor arranged at a specific position.

[0102] S405, |T1-T2|≤ΔT.

[0103] In this step, based on the first target temperature T1 and the second target temperature T2, the absolute value of the temperature difference between the first target temperature T1 and the second target temperature T2 is determined, and then the absolute value of the temperature difference is compared with the first preset temperature ΔT. When |T1-T2|≤ΔT, that is, the determination result is "yes", S406 is executed; when |T1-T2|>ΔT, that is, the determination result is "no", S404 is executed.

[0104] S406, the duration t2 of |T1-T2|≤ΔT is counted.

[0105] In this step, the duration t2 of |T1-T2|≤ΔT is counted from the time when |T1-T2|≤ΔT is determined.

[0106] S407, t2≥Δt2.

[0107] In this step, the duration t2 of |T1-T2|≤ΔT is compared with the second preset time Δt2. When the duration t2 of |T1-T2|≤ΔT is greater than or equal to the second preset time Δt2, that is, the determination result is "yes", it indicates that the compressor may be in the liquid strike state, and S408 is executed; when the duration t2 of |T1-T2|≤ΔT is less than the second preset time Δt2, that is, the determination result is "no", S406 is executed.

[0108] S408, the liquid strike number N is determined i+1 =N i +1.

[0109] Wherein, i≥0, and i is an integer; the initial value N0 of the liquid strike number is equal to zero, that is, N0=0. When S407 determines t2≥Δt2, the liquid strike number is accumulated by one in this step. Each time it is determined, the liquid strike number is increased by one based on the previous one.

[0110] S409, stopping the compressor.

[0111] When S407 determines that t2≥Δt2, the compressor can be in a liquid strike state, and the compressor is stopped.

[0112] It should be noted that the order of S408 and S409 is not limited in this embodiment. S408 can be performed first and S409 can be performed later, or S409 can be performed first and S408 can be performed later, or both can be performed simultaneously, or both can be combined into one step, which is not limited here.

[0113] S410, N i+1 ≥N.

[0114] In this step, the liquid strike number N i+1 is compared with the preset number N, when N i+1 ≥N, that is, the determination result is “yes”, and S414 is executed; when N i+1 <N, that is, the determination result is “no”, and S411 is executed.

[0115] S411, counting the compressor stop running time t3.

[0116] In this step, the compressor stop running time t3 is counted from the moment the compressor stops running.

[0117] S412, t3≥Δt3.

[0118] In this step, the compressor stop running time t3 is compared with the third preset time Δt3, when t3≥Δt3, that is, the determination result is “yes”, and S413 is executed; when t3<Δt3, that is, the determination result is “no”, and S411 is executed.

[0119] S413, restarting the compressor.

[0120] After restarting the compressor, S401 is executed.

[0121] S414, ending.

[0122] The flow of the control method ends, and the compressor is not started again during the execution of the current drying program. After the compressor stops running, the drying program continues to be executed, and the laundry treatment drum and the fan wheel continue to rotate.

[0123] Exemplarily, the control method of the laundry treatment apparatus comprises:

[0124] Step 1, starting detection after the compressor is started for 10 minutes, obtaining the exhaust port temperature of the compressor (i.e., the first target temperature T1) and the outlet temperature of the condenser (i.e., the second target temperature T2);

[0125] Step 2, if the exhaust port temperature - outlet temperature is less than or equal to 2 ℃, and the duration is greater than or equal to 5 min, the liquid strike count is accumulated by 1, and the compressor is controlled to stop running, at which time the laundry treatment drum rotates normally;

[0126] Step 3, after the compressor stops running for 30 min, the compressor is started again, and step 1 is returned to be executed.

[0127] Step 4, during a drying program running period, if the liquid strike count is greater than or equal to 2 times, the drying program running period is not allowed to start the compressor.

[0128] Based on the same inventive concept, the disclosure embodiments also provide a control device of a laundry treatment apparatus, which is used to execute the steps of any one of the above control methods, has corresponding beneficial effects, and the same can be understood with reference to the above, and will not be described hereinafter.

[0129] In some embodiments, as shown in Figure 5 , the laundry treatment apparatus includes a heat pump system for realizing the drying function of the laundry treatment apparatus, and the heat pump system includes a compressor; the control device 500 includes: an acquisition module 501 configured to acquire a target temperature after the compressor is started for a first preset time duration; and a control module 502 configured to determine that the target temperature satisfies a first preset condition, and control the compressor to stop running.

[0130] On the basis of the above embodiments, as shown in Figure 6 , another structural diagram of a laundry treatment apparatus is provided in the disclosure embodiments. With reference to Figure 6 , the laundry treatment apparatus includes a processor 601 and a memory 602. The processor 601 executes the steps of the method of each of the above embodiments by calling the programs or instructions stored in the memory 602, and thus has the beneficial effects of the above embodiments, which will not be described hereinafter.

[0131] Specifically, as shown in Figure 6 , the laundry treatment apparatus can be provided with at least one processor 601, at least one memory 602, and at least one communication interface 603. The communication interface 603 is used for information transmission between the laundry treatment apparatus and an external device. It can be understood that a bus system 604 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 604 also includes a power bus, a control bus, and a state signal bus. However, for the purpose of clear illustration, all kinds of buses are marked as the bus system 604 in Figure 6 .

[0132] It can be understood that the memory 602 in this embodiment can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. In some embodiments, the memory 602 stores the following elements: executable units or data structures, or a subset of them, or an extended set of them, operating systems and application programs. In the embodiments of the present disclosure, the processor 601 executes the steps of each embodiment of the method provided by the embodiments of the present disclosure by invoking the programs or instructions stored in the memory 602.

[0133] The method provided by the embodiments of the present disclosure can be applied to the processor 601 or implemented by the processor 601. The processor 601 can be an integrated circuit chip having a signal processing capability. In the implementation process, each step of the above method can be completed by hardware integrated logic circuits in the processor 601 or instructions in the form of software. The above processor 601 can be a general processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The general processor can be a microprocessor or the processor can also be any conventional processor.

[0134] The steps of the method provided by the embodiments of the present disclosure can be directly embodied as a hardware coding processor to complete, or completed by a combination of hardware and software units in the coding processor. The software unit can be located in a random access memory, a flash memory, a read only memory, a programmable read only memory, an electrically erasable programmable memory, a register, or other mature storage media in the art. The storage medium is located in the memory 602, and the processor 601 reads the information in the memory 602 and combines the hardware to complete the steps of the method.

[0135] The laundry treatment apparatus can further include one physical component or a plurality of physical components to generate an instruction according to the processor 601 in executing the method provided by the embodiments of the present disclosure. Different physical components can be provided in the laundry treatment apparatus or outside the laundry treatment apparatus, such as a cloud server. Each physical component cooperates with the processor 601 and the memory 602 to realize the function of the laundry treatment apparatus in the embodiments.

[0136] The embodiments of the present disclosure further provide a computer readable storage medium, which stores programs or instructions, and the programs or instructions make the computer execute the steps of any one of the control methods provided in the above embodiments.

[0137] In some embodiments, the computer executable instructions, when executed by the computer processor, can also be used for performing the technical solutions of any of the control methods provided by the embodiments of the present disclosure to achieve the corresponding beneficial effects.

[0138] From the above description about the embodiments, those skilled in the art can clearly understand that the present disclosure can be realized by means of software and the necessary universal hardware, and of course can also be realized by hardware, but in many cases the former is a better implementation. Based on such understanding, the technical solutions of the present disclosure can be embodied in the form of a software product, which can be stored in a computer readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH memory, a hard disk, or an optical disc, and includes a number of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to perform the methods of various embodiments of the present disclosure.

[0139] It should be noted that, in this document, the terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the processes, methods, articles or devices including a series of elements not only include those elements, but also include other elements not explicitly listed or inherent to such processes, methods, articles or devices. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or device including the element.

[0140] The above is only a specific implementation of the present disclosure, enabling those skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to these embodiments herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A control method of a laundry treating apparatus, characterized by, The clothes treatment apparatus includes a heat pump system for implementing a drying function of the clothes treatment apparatus, the heat pump system including a compressor; and the control method includes: obtaining a first target temperature and a second target temperature after the compressor is started for a first preset time length; determining that a temperature difference between the first target temperature and the second target temperature satisfies a preset condition, and controlling the compressor to stop running.

2. The control method according to claim 1, characterized by, The determination that the temperature difference between the first target temperature and the second target temperature satisfies the preset condition includes: determining an absolute value of the temperature difference based on the first target temperature and the second target temperature; determining that the preset condition is satisfied based on the absolute value of the temperature difference being less than or equal to a first preset temperature and a duration being greater than or equal to a second preset time length.

3. The control method according to claim 2, characterized by, The heat pump system further includes a condenser and a capillary tube, an exhaust port of the compressor is connected to an inlet of the condenser, and an outlet of the condenser is connected to the capillary tube; The first target temperature includes a temperature of refrigerant at any position between the exhaust port of the compressor and the inlet of the condenser; The second target temperature includes a temperature of refrigerant at any position between the outlet of the condenser and the capillary tube.

4. The control method of claim 2, wherein the first preset temperature is greater than or equal to 1°C and less than or equal to 5°C; the first preset time length is greater than or equal to 5 minutes and less than or equal to 20 minutes; the second preset time length is greater than or equal to 5 minutes and less than or equal to 10 minutes. 5.The control method of a laundry treating apparatus according to claim 1, characterized in that, After the control of the compressor to stop running, the control method further includes: restarting the compressor and performing the obtaining of the first target temperature and the second target temperature after the compressor is started for the first preset time length, when a duration for which the compressor stops running is greater than or equal to a third preset time length. 6.The control method of a laundry treating apparatus according to claim 5, characterized in that, After the determination that the temperature difference between the first target temperature and the second target temperature satisfies the preset condition, the control method further includes: determining that a liquid strike count is accumulated by one, wherein an initial value of the liquid strike count is equal to zero; controlling the compressor to stop running and not restarting the compressor during execution of a drying program, based on the liquid strike count being greater than or equal to a preset number of times.

7. The control method of the clothes treatment apparatus of claim 6, wherein the third preset time length is greater than or equal to 20 minutes and less than or equal to 40 minutes; the preset number of times is greater than or equal to 2. 8.A control apparatus of a laundry treating apparatus, characterized by, The clothes treatment apparatus includes a heat pump system for implementing a drying function of the clothes treatment apparatus, the heat pump system including a compressor; and the control device includes: an obtaining module configured to obtain a target temperature after a compressor is started for a first preset time length; a control module configured to determine that the target temperature satisfies a first preset condition, and control the compressor to stop running. 9.A laundry treating apparatus, characterized by, including: a processor and a memory, the processor executing steps of the control method of any one of claims 1 to 7 by calling programs or instructions stored in the memory.

10. A computer-readable storage medium, characterized in that, The computer readable storage medium stores programs or instructions, which make the computer execute the steps of the control method according to any one of claims 1 to 7.

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