Control method and control apparatus for laundry treatment device, and laundry treatment device

Abstract

A control method and control apparatus for a laundry treatment device, and a laundry treatment device. The laundry treatment device comprises a heat pump system, the heat pump system comprising a compressor. The control method comprises: acquiring a collected temperature at a preset position in a heat pump system; and on the basis that the collected temperature at the preset position is greater than a first preset temperature, adjusting the operating frequency of a compressor to a target operating frequency corresponding to the temperature range of the collected temperature, wherein different temperature ranges correspond to different target operating frequencies. By means of the solution, a shutdown risk of a compressor is reduced, thereby improving the drying efficiency of a laundry treatment device.

Description

Control method and control apparatus of laundry treating apparatus, and laundry treating apparatus

[0001] The present disclosure claims priority to the Chinese patent application No. 202410649318.6, filed on May 23, 2024, and entitled "Control method and control apparatus of laundry treating apparatus, and laundry treating apparatus", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of laundry treating apparatus, and in particular, to a control method and control apparatus of laundry treating apparatus, and laundry treating apparatus. BACKGROUND

[0003] With the improvement of people's living quality, laundry treating apparatuses are increasingly used in people's life. With the rapid development of heat pump technology, heat pump technology is usually used in laundry treating apparatuses to dry clothes.

[0004] In the related art, when the compressor discharge temperature value or the condenser temperature value in the heat pump system is higher than the temperature value of the frequency reduction point, the operation frequency of the compressor is controlled to be reduced. However, in harsh working conditions, such as filter clogging, the laundry treating apparatus is restarted after being paused during operation, etc., the temperature of the heat pump system will rapidly rise, and the adjustment of the operation frequency of the compressor is not timely, which will cause the compressor to overheat and stop running, resulting in prolonged drying time.

[0005] SUMMARY

[0006] (1) Technical problem to be solved

[0007] The technical problem to be solved by the present disclosure is to solve the problem that when the compressor discharge temperature value or the condenser temperature value in the existing heat pump system is higher than the temperature value of the frequency reduction point, the operation frequency of the compressor is controlled to be reduced, and in harsh working conditions, such as filter clogging, the laundry treating apparatus is restarted after being paused during operation, etc., the temperature of the heat pump system will rapidly rise, and the adjustment of the operation frequency of the compressor is not timely, which will cause the compressor to overheat and stop running, resulting in prolonged drying time.

[0008] (2) Technical solution

[0009] To solve the above technical problem, the present disclosure provides a control method and control apparatus of laundry treating apparatus, and laundry treating apparatus, which avoids the problem that when the temperature of the heat pump system rapidly rises, the operation frequency of the compressor cannot be timely reduced, causing the compressor to overheat and stop running, and prolonging the drying time, reduces the risk of compressor shutdown, and improves the drying efficiency of the laundry treating apparatus.

[0010] In a first aspect, the disclosure provides a control method of a clothes processing apparatus, comprising:

[0011] acquiring a collection temperature at a preset position in the heat pump system;

[0012] based on the collection temperature at the preset position being greater than a first preset temperature, adjusting a running frequency of the compressor to a target running frequency corresponding to a temperature interval in which the collection temperature is located;

[0013] wherein the target running frequencies corresponding to different temperature intervals are different.

[0014] In some optional implementations, the adjusting of the running frequency of the compressor to the target running frequency corresponding to the temperature interval in which the collection temperature is located comprises:

[0015] determining that the heat pump system is warming up, and adjusting the running frequency of the compressor to a target running frequency corresponding to the temperature interval in which the collection temperature is located in a frequency reduction rule;

[0016] wherein the frequency reduction rule is that the higher the temperature interval, the lower the target running frequency.

[0017] In some optional implementations, after the adjusting of the running frequency of the compressor to the target running frequency corresponding to the temperature interval in which the collection temperature is located in the frequency reduction rule, the method further comprises:

[0018] based on the collection temperature being less than a second preset temperature and determining that the heat pump system is cooling down, adjusting the running frequency of the compressor to a target running frequency corresponding to the temperature interval in which the collection temperature is located in a frequency increase rule;

[0019] wherein the frequency increase rule is that the lower the temperature interval, the higher the target running frequency.

[0020] the target running frequencies corresponding to the same temperature interval in the frequency increase rule and the frequency reduction rule are different.

[0021] In some optional implementations, after the adjusting of the running frequency of the compressor to the target running frequency corresponding to the temperature interval in which the collection temperature is located in the frequency increase rule, the method further comprises:

[0022] based on the collection temperature being greater than the first preset temperature and determining that the heat pump system is warming up, adjusting the running frequency of the compressor to a target running frequency corresponding to the temperature interval in which the collection temperature is located in a frequency reduction rule.

[0023] the determining of the warming up of the heat pump system and the adjusting of the running frequency of the compressor to the target running frequency corresponding to the temperature interval in which the collection temperature is located in the frequency reduction rule comprises:

[0024] determining that the collected temperature is increased from a first temperature to a second temperature, and the first temperature and the second temperature belong to different temperature intervals;

[0025] adjusting the operating frequency of the compressor to a target operating frequency corresponding to the temperature interval in which the second temperature is located in the frequency reduction rule.

[0026] In some optional implementations, the determining that the heat pump system is cooling, and adjusting the operating frequency of the compressor to a target operating frequency corresponding to the temperature interval in which the collected temperature is located in the frequency increase rule, comprises:

[0027] determining that the collected temperature is decreased from a third temperature to a fourth temperature, and the fourth temperature and the third temperature belong to different temperature intervals;

[0028] determining that the operating frequency of the compressor corresponding to the temperature interval in which the fourth temperature is located in the frequency increase rule is greater than the operating frequency of the compressor corresponding to the temperature interval in which the third temperature is located in the frequency reduction rule, and adjusting the operating frequency of the compressor to a target operating frequency corresponding to the temperature interval in which the fourth temperature is located in the frequency increase rule.

[0029] In some optional implementations, after adjusting the operating frequency of the compressor to a target operating frequency corresponding to the temperature interval in which the collected temperature is located in the frequency reduction rule, the method further comprises:

[0030] determining that the collected temperature is decreased from a third temperature to a fourth temperature, and the fourth temperature and the third temperature belong to different temperature intervals;

[0031] determining that the operating frequency of the compressor corresponding to the temperature interval in which the fourth temperature is located in the frequency increase rule is less than or equal to the operating frequency of the compressor corresponding to the temperature interval in which the third temperature is located in the frequency reduction rule, taking the current operating frequency of the compressor as a target operating frequency, and keeping the operating frequency unchanged.

[0032] In some optional implementations, the control method of the clothes treatment apparatus further comprises:

[0033] determining that the collected temperature is greater than a preset limit temperature of the heat pump system, and controlling the compressor to stop operating;

[0034] The preset limit temperature of the heat pump system is greater than or equal to a maximum value of a maximum temperature interval.

[0035] In a second aspect, the disclosure also provides a control device of a clothes treatment apparatus, comprising:

[0036] a temperature collection module configured to acquire a collected temperature at a preset position in the heat pump system;

[0037] adjusting a running frequency of the compressor to a target running frequency corresponding to a temperature interval in which the collected temperature is located, when the collected temperature at the preset position is greater than a first preset temperature;

[0038] wherein the target running frequency corresponding to different temperature intervals is different.

[0039] In a third aspect, the embodiments of the present disclosure further provide a computer-readable storage medium storing programs or instructions; the programs or instructions cause a computer to perform the steps of the method in the first aspect.

[0040] In a fourth aspect, the embodiments of the present disclosure further provide a laundry processing apparatus including a processor and a memory, the processor executes the steps of the method in the first aspect by invoking the programs or instructions stored in the memory.

[0041] (III) Advantages

[0042] The above technical solutions provided by the embodiments of the present disclosure have the following advantages compared with the prior art:

[0043] The control method of the laundry processing apparatus and the laundry processing apparatus provided by the embodiments of the present disclosure, the control method includes: acquiring a collected temperature at a preset position in a heat pump system; adjusting a running frequency of the compressor to a target running frequency corresponding to a temperature interval in which the collected temperature is located, when the collected temperature at the preset position is greater than a first preset temperature; wherein the target running frequency corresponding to different temperature intervals is different. Thus, by determining that the collected temperature at the preset position is greater than the first preset temperature, the running frequency of the compressor is adjusted to the target running frequency corresponding to the temperature interval in which the collected temperature is located, which avoids the problem that the running frequency of the compressor cannot be reduced in time when the temperature of the heat pump system rises rapidly, resulting in overheating shutdown of the compressor and prolonging the drying time, reduces the shutdown risk of the compressor, and improves the drying efficiency of the laundry processing apparatus.

[0044] It should be understood that the general description above and the detailed description below are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0045] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present disclosure and, together with the specification, serve to explain the principles of the present disclosure.

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the drawings needed in the embodiments or the prior art description will be briefly introduced as follows. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0047] Fig. 1 is a flowchart of a control method of a laundry treatment apparatus according to an embodiment of the disclosure;

[0048] Fig. 2 is a graph of a correspondence relationship between temperature intervals and target operating frequencies in a frequency reduction rule according to an embodiment of the disclosure;

[0049] Fig. 3 is a graph of a correspondence relationship between temperature intervals and target operating frequencies in another frequency reduction rule according to an embodiment of the disclosure;

[0050] Fig. 4 is a graph of a correspondence relationship between temperature intervals and target operating frequencies in a frequency increase rule according to an embodiment of the disclosure;

[0051] Fig. 5 is a graph of a correspondence relationship between temperature intervals and target operating frequencies in another frequency increase rule according to an embodiment of the disclosure;

[0052] Fig. 6 is a structural diagram of a control device of a laundry treatment apparatus according to an embodiment of the disclosure;

[0053] Fig. 7 is a structural diagram of a laundry treatment apparatus according to an embodiment of the disclosure. DETAILED DESCRIPTION

[0054] In order to make the objectives, technical solutions, and advantages of the embodiments of the disclosure clearer, the technical solutions in the embodiments of the disclosure will be described clearly and completely below. Obviously, the described embodiments are some but not all of the embodiments of the disclosure. Based on the embodiments of the disclosure, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the disclosure.

[0055] In the related art, when the compressor discharge temperature value or the condenser temperature value in the heat pump system is higher than the temperature value of the frequency reduction point, the control reduces the operating frequency of the compressor. However, in a harsh working condition, such as filter clogging, the laundry treatment apparatus is restarted after being paused during operation, and the like, the temperature of the heat pump system can rapidly increase, and the adjustment of the operating frequency of the compressor is not timely, which can cause the compressor to overheat and stop running, resulting in an extended drying time. In addition, when the compressor discharge temperature value or the condenser temperature value is lower than the temperature value of the frequency increase point, the control increases the operating frequency of the compressor. However, a single frequency increase point cannot meet the rapid increase of the operating frequency of the compressor, which can cause the temperature in the laundry treatment drum to be unable to rapidly increase, and the drying efficiency of the laundry is low.

[0056] To solve the above problems, the disclosure provides a control method of a clothes processing apparatus, which includes a heat pump system, for example, a compressor can be included in the heat pump system. FIG. 1 is a flowchart of a control method of a clothes processing apparatus according to an embodiment of the disclosure. The control method of the clothes processing apparatus can be applied to an application scenario in which the clothes processing apparatus needs to be controlled, and the method can be performed by a control device of the clothes processing apparatus according to an embodiment of the disclosure. The control device of the clothes processing apparatus can be implemented in software and / or hardware. FIG. 1 is a flowchart of a control method of a clothes processing apparatus according to an embodiment of the disclosure. As shown in FIG. 1, the control method includes the following steps:

[0057] S101, acquiring a collection temperature at a preset position in the heat pump system.

[0058] Specifically, the heat pump system is used to realize drying of clothes, and after the clothes processing apparatus starts to work, the compressor in the heat pump system is generally initially operated at a high frequency value, so that the temperature in the drum of the clothes processing apparatus is quickly raised, facilitating rapid drying of the clothes. As the temperature in the clothes processing drum increases, the discharge temperature of the compressor gradually increases, and a too high discharge temperature can cause an increase in power consumption and irreversible damage to the compressor due to carbonization of lubricating oil. In order to realize detection of the temperature of the heat pump system, the temperature at a preset position in the heat pump system needs to be collected. According to the circulation principle of the heat pump system, the temperature decreases according to a certain rule from the discharge port of the compressor to the front of the capillary, that is, the temperature at the discharge port of the compressor is the highest. Therefore, the temperature can be collected at a preset position between the discharge port of the compressor and the capillary. For example, the preset position can be a certain position in the heat pump system, such as the discharge port of the compressor, a preset point of the cylinder body of the compressor, a preset point of the condenser, or the outlet position of the condenser. For example, the temperature collected at the outlet position of the condenser can be converted to the temperature value at the discharge port of the compressor according to the temperature variation rule in the heat pump system. Therefore, the disclosure does not limit the preset position for collecting the temperature.

[0059] S102, based on the collection temperature at the preset position being greater than a first preset temperature, adjusting the operating frequency of the compressor to a target operating frequency corresponding to a temperature interval in which the collection temperature is located.

[0060] In this embodiment of the disclosure, the target operating frequency corresponding to different temperature intervals is different.

[0061] In the related art, the clothes processing apparatus is usually provided with only a single frequency reduction point, that is, when the collection temperature is higher than the frequency reduction point, the operating frequency of the compressor is reduced by a certain value. This gradual adjustment of the operating frequency of the compressor cannot meet the rapid rise of the temperature of the heat pump system. Since the operating frequency of the compressor cannot be adjusted in time, the compressor can be overheated and stopped, which can further cause an increase in drying time.

[0062] To solve the above problems, the clothes processing apparatus provided by the embodiments of the present disclosure can prestore a plurality of temperature intervals and the correspondence between the temperature intervals and the target operating frequency. After the acquisition temperature at the preset position in the heat pump system is obtained, the temperature interval in which the acquisition temperature is located is determined. When the temperature interval is determined, the corresponding target operating frequency can be matched in a table lookup manner, and the operating frequency of the compressor is directly adjusted to the target operating frequency corresponding to the temperature interval.

[0063] For example, when the acquisition temperature Tx at the preset position is greater than the first preset temperature Ty, the temperature interval in which Tx is located is A℃-B℃, and the target operating frequency corresponding to the temperature interval is γhz, the operating frequency of the compressor is adjusted to the target operating frequency γhz corresponding to the temperature interval in which the acquisition temperature Tx is located, so as to realize the rapid adjustment of the operating frequency of the compressor. Thus, the problem that the operating frequency of the compressor cannot be adjusted in time when the temperature of the heat pump system rises rapidly, resulting in the overheating shutdown of the compressor and the prolongation of the drying time, is avoided, and the drying efficiency of the clothes processing apparatus is improved.

[0064] It should be noted that the clothes processing apparatus can be a clothes dryer, a washer-dryer, or other clothes processing apparatuses with a heat pump system, and the embodiments of the present disclosure do not limit this.

[0065] The embodiments of the present disclosure adjust the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval in which the acquisition temperature is located when the acquisition temperature at the preset position is greater than the first preset temperature, thereby avoiding the problem that the operating frequency of the compressor cannot be reduced in time when the temperature of the heat pump system rises rapidly, resulting in the overheating shutdown of the compressor and the prolongation of the drying time, reducing the shutdown risk of the compressor, and improving the drying efficiency of the clothes processing apparatus.

[0066] Optionally, adjusting the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval in which the acquisition temperature is located comprises: determining that the heat pump system is warming up, and adjusting the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval in which the acquisition temperature is located in the frequency reduction rule; wherein the target operating frequency corresponding to a higher temperature interval in the frequency reduction rule is lower.

[0067] Specifically, when it is determined that the heat pump system is warming up, the operating frequency of the compressor is controlled to be adjusted to the target operating frequency corresponding to the temperature interval in which the acquisition temperature is located in the frequency reduction rule, wherein the target operating frequency corresponding to a higher temperature interval in the frequency reduction rule is lower, so as to reduce the temperature of the compressor by reducing the operating frequency of the compressor when the temperature rises, thereby avoiding the problem that the compressor stops due to overheating.

[0068] Optionally, after adjusting the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval of the collected temperature in the frequency reduction rule, the method further comprises: based on the collected temperature being less than the second preset temperature and determining that the heat pump system is cooling, adjusting the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval of the collected temperature in the frequency increase rule; wherein the frequency increase rule is that the lower the temperature interval, the higher the target operating frequency; and the target operating frequencies corresponding to the same temperature interval in the frequency increase rule and the frequency reduction rule are different.

[0069] Specifically, after adjusting the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval of the collected temperature in the frequency reduction rule, that is, after reducing the operating frequency of the compressor, and based on the collected temperature being less than the second preset temperature, it is determined that the heat pump system is in a cooling state, in order to keep a relatively high temperature in the clothes treatment drum to realize drying of the clothes, it is necessary to increase the operating frequency of the compressor to increase the temperature of the heat pump system, therefore the operating frequency of the compressor is adjusted to the target operating frequency corresponding to the temperature interval of the collected temperature in the frequency increase rule, and the lower the temperature interval in the frequency increase rule, the higher the target operating frequency, so as to achieve the purpose of increasing the target operating frequency of the compressor when the temperature of the heat pump system decreases.

[0070] In addition, in order to meet the requirement that the heat pump system can be at a relatively high temperature to meet the drying requirement of the clothes, the present embodiment sets that the target operating frequencies corresponding to the same temperature interval in the frequency increase rule and the frequency reduction rule are different, and exemplarily can set that the operating frequency of the compressor can only be increased when the collected temperature is at a relatively low temperature, thereby avoiding the problem of overheating shutdown of the compressor.

[0071] Optionally, after adjusting the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval of the collected temperature in the frequency increase rule, the method further comprises: based on the collected temperature being greater than the first preset temperature and determining that the heat pump system is heating, adjusting the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval of the collected temperature in the frequency reduction rule.

[0072] Specifically, after adjusting the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval of the collected temperature in the frequency increase rule, the collected temperature is greater than the first preset temperature, and it is determined that the heat pump system is heating, in order to avoid the problem of overheating shutdown of the compressor, it is necessary to reduce the operating frequency of the compressor, that is, to adjust the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval of the collected temperature in the frequency reduction rule, thereby realizing rapid reduction of the operating frequency of the compressor to avoid the problem of overheating shutdown of the compressor, and improving the drying efficiency of the clothes treatment equipment.

[0073] Optionally, the operation frequency of the compressor is adjusted to a target operation frequency corresponding to a temperature interval in which the collected temperature at the preset position is located in the frequency reduction rule, including: determining that the collected temperature rises from a first temperature to a second temperature, and the first temperature and the second temperature belong to different temperature intervals; and adjusting the operation frequency of the compressor to a target operation frequency corresponding to a temperature interval in which the second temperature is located in the frequency reduction rule.

[0074] FIG. 2 is a diagram of a correspondence between temperature intervals and target operation frequencies in a frequency reduction rule according to an embodiment of the present disclosure. For example, as shown in FIG. 2, when the collected temperature at the preset position rises from a first temperature T1 to a second temperature T2, and the first temperature T1 and the second temperature T2 belong to different temperature intervals, for example, the first temperature T1 belongs to a temperature interval of a °C to (a+a) °C, and the second temperature T2 belongs to a temperature interval of (a+a) °C to (a+b) °C, in order to avoid the problem that the collected temperature at the preset position continues to rise and causes the compressor to stop, the operation frequency of the compressor needs to be reduced to reduce the temperature of the exhaust port of the compressor. In the frequency reduction rule, the target operation frequency corresponding to the temperature interval in which the first temperature T1 is located is β hz, and the target operation frequency corresponding to the temperature interval in which the second temperature T2 is located is (β-w) hz. Therefore, the operation frequency of the compressor is adjusted from β hz to (β-w) hz to reduce the operation frequency of the compressor, thereby reducing the temperature of the exhaust port of the compressor.

[0075] FIG. 3 is a diagram of another correspondence between temperature intervals and target operation frequencies in a frequency reduction rule according to an embodiment of the present disclosure. In order to better illustrate the frequency reduction rule, FIG. 3 illustrates the frequency reduction rule with specific numerical values. For example, as shown in FIG. 3, when the collected temperature at the preset position rises from 86 °C to 93 °C, the temperature interval in which 86 °C is located is between 85 °C and 90 °C, and the corresponding target operation frequency is 75 hz. The temperature interval in which 93 °C is located is between 90 °C and 95 °C, and the corresponding target operation frequency is 63 hz. Therefore, the operation frequency of the compressor can be adjusted from 75 hz to 63 hz.

[0076] It should be noted that FIGS. 2 and 3 illustrate the temperature intervals and the target operation frequencies in the frequency reduction rule by way of example. The specific division of the temperature intervals and the specific numerical values of the target operation frequencies can be set according to the actual use requirements of the clothes treatment apparatus, and the present disclosure does not limit the same.

[0077] Optionally, the determining that the heat pump system is cooling down and the adjusting the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval in which the collected temperature is located in the frequency increasing rule comprises: determining that the collected temperature decreases from the third temperature to the fourth temperature, and the fourth temperature and the third temperature belong to different temperature intervals; determining that the operating frequency of the compressor corresponding to the temperature interval in which the fourth temperature is located in the frequency increasing rule is greater than the operating frequency of the compressor corresponding to the temperature interval in which the third temperature is located in the frequency decreasing rule, and adjusting the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval in which the fourth temperature is located in the frequency increasing rule.

[0078] FIG. 4 is a diagram of a correspondence between temperature intervals and target operating frequencies in a frequency increasing rule according to an embodiment of the present disclosure. As shown in FIG. 4, for example, after the operating frequency of the compressor is adjusted to the target operating frequency corresponding to the temperature interval in which the third temperature T3 is located in the frequency decreasing rule, and the operating frequency of the compressor is decreased, the collected temperature at the preset position decreases and decreases from the third temperature T3 to the fourth temperature T4, for example, the temperature interval in which the fourth temperature T4 is located is (a-c)℃~(a-b)℃, in the frequency increasing rule, the target operating frequency corresponding to the temperature interval in which the fourth temperature T4 is located is, for example, βhz, and the target operating frequency corresponding to the temperature interval in which the fourth temperature T4 is located is βhz, which is greater than the target operating frequency corresponding to the temperature interval in which the third temperature T3 is located in the frequency decreasing rule, which is (β-w)hz, then the operating frequency of the compressor is increased from (β-w)hz to βhz, so as to increase the operating frequency of the compressor, to avoid the problem that the temperature in the drum of the clothes treatment apparatus is too low due to the too low operating frequency of the compressor, and the drying time of the clothes is too long, and improve the drying efficiency of the clothes.

[0079] FIG. 5 is a diagram of another correspondence between temperature intervals and target operating frequencies in a frequency increasing rule according to an embodiment of the present disclosure. In order to better illustrate the frequency increasing rule, FIG. 5 illustrates the frequency increasing rule with specific numerical values. When the collected temperature at the preset position decreases from 93℃ to 73℃, according to the frequency increasing rule, the temperature interval in which 73℃ is located is 70℃~75℃, and the corresponding target operating frequency is 75hz, so the operating frequency of the compressor can be adjusted from 63hz to 75hz, to increase the operating frequency of the compressor, to avoid the problem that the temperature in the drum of the clothes treatment apparatus is too low due to the too low operating frequency of the compressor, and the drying efficiency is poor, and improve the drying efficiency of the clothes treatment apparatus.

[0080] Optionally, after adjusting the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval in which the temperature is collected in the frequency reduction rule, the method further comprises: determining that the collected temperature at the preset position decreases from the third temperature to the fourth temperature, and the fourth temperature and the third temperature belong to different temperature intervals; determining that the operating frequency of the compressor corresponding to the temperature interval in which the fourth temperature is collected in the frequency increase rule is less than or equal to the operating frequency of the compressor corresponding to the temperature interval in which the third temperature is collected in the frequency reduction rule, taking the current operating frequency of the compressor as the target operating frequency, and keeping the operating frequency unchanged.

[0081] For example, referring to FIG. 4, in the frequency increase rule, the temperature interval in which the fourth temperature T4 is located is (a-a) °C to a °C, for example, and the corresponding operating frequency of the compressor is (b-x) hz, for example. The operating frequency of the compressor corresponding to the temperature interval in which the third temperature T3 is collected in the frequency reduction rule, i.e., the current operating frequency of the compressor, is (b-w) hz, for example, wherein (b-x) is less than or equal to (b-w). At this time, the current operating frequency (b-w) hz of the compressor is taken as the target operating frequency, and the operating frequency of the compressor is kept unchanged, so that the compressor can operate at a relatively high frequency value, maintaining a relatively high temperature in the drum of the clothes treatment apparatus, so as to realize fast drying of the clothes and improve the drying efficiency of the clothes treatment apparatus.

[0082] For example, referring to FIG. 5, when the collected temperature at the preset position decreases from 93 °C to 84 °C, according to the corresponding frequency increase rule, the temperature interval in which 84 °C is located is between 80 °C and 85 °C, and the corresponding target operating frequency is 56 hz. The current operating frequency of the compressor is the target operating frequency corresponding to the temperature interval in which 93 °C is collected in the frequency reduction rule, i.e., 63 hz. At this time, the current operating frequency of the compressor is taken as the target operating frequency, and the operating frequency is kept unchanged.

[0083] It should be noted that FIGS. 4 and 5 exemplarily show the temperature intervals and the target operating frequencies in the frequency increase rule. The specific division of the temperature intervals and the specific values of the target operating frequencies can be set according to the actual use requirements of the clothes treatment apparatus, and the embodiments of the present disclosure are not limited in this regard.

[0084] Optionally, the adjusting of the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval includes: determining that the collected temperature at the preset position changes from the first temperature to the fifth temperature, and the first temperature and the fifth temperature belong to the same temperature interval; taking the current operating frequency of the compressor as the target operating frequency, and keeping the operating frequency unchanged.

[0085] Exemplarily, the temperature interval to which the first temperature T1 and the fifth temperature T5 belong is, for example, a-(a+a)℃, at this time, the current operating frequency of the compressor is taken as the target operating frequency, that is, the compressor is still controlled to operate at the target operating frequency corresponding to the temperature interval a-(a+a)℃ to which the first temperature T1 belongs, and the operating frequency is kept unchanged. In this way, the problem that the temperature in the clothes treatment drum is unstable and the compressor fails due to frequent adjustment of the operating frequency of the compressor can be avoided, and the operating reliability of the compressor is improved.

[0086] Optionally, the control method of the clothes treatment apparatus further includes: determining that the collected temperature is greater than a preset limit temperature of the heat pump system, and controlling the compressor to stop operating; the preset limit temperature of the heat pump system is greater than or equal to the maximum value of the maximum temperature interval.

[0087] Specifically, when the collected temperature at the preset position is greater than the preset limit temperature of the heat pump system, the maximum value of the maximum temperature interval is, for example, T10, the preset limit temperature of the heat pump system is, for example, T11, and T11 is greater than T10, at this time, the collected temperature at the preset position cannot be reduced by, for example, reducing the operating frequency of the compressor. In order to avoid the compressor from failing, the compressor can be controlled to stop operating, thereby ensuring the operating safety of the clothes treatment apparatus.

[0088] The embodiment of the present disclosure avoids the problem that the compressor overheats and stops operating due to the inability to timely reduce the operating frequency of the compressor when the temperature of the heat pump system rapidly rises, prolongs the drying time, reduces the risk of the compressor stopping operating, and improves the drying efficiency of the clothes treatment apparatus by determining that the collected temperature at the preset position is greater than the first preset temperature and adjusting the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval in which the collected temperature is located.

[0089] The embodiment of the present disclosure also provides a control device of a clothes treatment apparatus. FIG. 6 is a structural schematic diagram of a control device of a clothes treatment apparatus provided by an embodiment of the present disclosure, as shown in FIG. 6, the control device of the clothes treatment apparatus includes: a temperature collection module 601 and an adjustment module 602, the temperature collection module 601 is configured to acquire a collected temperature at a preset position in a heat pump system, and the adjustment module 602 is configured to adjust an operating frequency of a compressor to a target operating frequency corresponding to a temperature interval in which the collected temperature is located based on the collected temperature at the preset position being greater than a first preset temperature; and the target operating frequency corresponding to different temperature intervals is different.

[0090] The device provided by the above-mentioned embodiments of the present disclosure is based on the same inventive concept as the method provided by the embodiments of the present disclosure, has the same beneficial effects as the method, and will not be described here.

[0091] The embodiment of the present disclosure further provides a computer readable storage medium, which stores programs or instructions, and the programs or instructions enable a computer to execute steps of any method provided in the above embodiments.

[0092] In some embodiments, the computer executable instructions, when executed by the computer processor, can also be used to execute the technical solutions of any method provided in the embodiments of the present disclosure, and realize the corresponding beneficial effects.

[0093] Through the above description of the embodiments, those skilled in the art can clearly understand that the present disclosure can be realized by means of software and necessary universal hardware, and of course can also be realized by hardware, but in many cases the former is a better embodiment. 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 enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods of various embodiments of the present disclosure.

[0094] Fig. 7 is a structural schematic diagram of a clothes processing device according to an embodiment of the present disclosure. As shown in Fig. 7, the clothes processing device comprises a processor 701 and a memory 702. The processor 701 executes the steps of the method according to the above embodiments by invoking the programs or instructions stored in the memory 702, and thus has the beneficial effects of the above embodiments, which will not be repeated here.

[0095] Specifically, as shown in Fig. 7, the clothes processing device can be configured to include at least one processor 701, at least one memory 702, and at least one communication interface 703. The various components in the clothes processing device are coupled together through a bus system 704. The communication interface 703 is used for information transmission between the clothes processing device and external devices. It can be understood that the bus system 704 is used to realize the connection and communication between the components. In addition to the data bus, the bus system 704 also includes a power bus, a control bus, and a status signal bus. However, for the purpose of clear illustration, all kinds of buses are marked as the bus system 704 in Fig. 7.

[0096] It can be understood that the memory 702 in this embodiment can be a volatile memory or a nonvolatile memory, or can include both volatile and nonvolatile memories. In some embodiments, the memory 702 stores the following elements: executable units or data structures, or a subset thereof, or an extended set thereof operating system and application programs. In the embodiments of the present disclosure, the processor 701 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 702.

[0097] The method provided by the embodiments of the present disclosure can be applied to the processor 701 or implemented by the processor 701. The processor 701 can be an integrated circuit chip having a processing capability of signals. In the implementation process, each step of the above method can be completed by the integrated logic circuit of hardware in the processor 701 or the instruction in the form of software. The processor 701 described above 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 device, a discrete gate or transistor logic device, a discrete hardware component. The general processor can be a microprocessor or the processor can also be any conventional processor.

[0098] 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 a combination of hardware and software units in the coding processor to complete. The software unit can be located in a random access memory, a flash memory, a read only memory, a programmable read only memory or an electrically erasable programmable memory, a register or other mature storage medium in the art. The storage medium is located in the memory 702, and the processor 701 reads the information in the memory 702 and combines the hardware to complete the steps of the method.

[0099] The laundry treatment apparatus can further include one physical component or a plurality of physical components to generate an instruction according to the processor 701 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 701 and the memory 702 to realize the function of the laundry treatment apparatus in the embodiments.

[0100] It should be noted that, in this document, the terms such as "first" and "second" and the like are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between such entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of additional identical elements in the process, method, article or device including the element.

[0101] The above merely provides 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. Industrial applicability

[0102] The control method of the clothes treatment apparatus provided by the present disclosure acquires the collection temperature at the preset position in the heat pump system; based on the collection temperature at the preset position being greater than the first preset temperature, the operating frequency of the compressor is adjusted to the target operating frequency corresponding to the temperature interval in which the collection temperature is located; wherein the target operating frequencies corresponding to different temperature intervals are different. Thus, by determining that the collection temperature at the preset position is greater than the first preset temperature, the operating frequency of the compressor is adjusted to the target operating frequency corresponding to the temperature interval in which the collection temperature is located, avoiding the problem that when the temperature of the heat pump system rises rapidly, the operating frequency of the compressor cannot be reduced in time, resulting in overheating shutdown of the compressor and prolonging the drying time, reducing the shutdown risk of the compressor and improving the drying efficiency of the clothes treatment apparatus.

Claims

1. A control method of a laundry treating apparatus, characterized by, The clothes treatment device comprises a heat pump system comprising a compressor; the control method comprises: acquiring a collection temperature at a preset position in the heat pump system; based on the collection temperature at the preset position being greater than a first preset temperature, adjusting the operating frequency of the compressor to a target operating frequency corresponding to the temperature interval in which the collection temperature is located; wherein the target operating frequencies corresponding to different temperature intervals are different. 2.The control method of a laundry treating apparatus according to claim 1, characterized in that, The adjustment of the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval in which the collection temperature is located comprises: determining that the heat pump system is warming up, and adjusting the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval in which the collection temperature is located in the frequency reduction rule; wherein the higher the temperature interval, the lower the target operating frequency corresponding to the temperature interval. 3.The control method of a laundry treating apparatus according to claim 2, characterized in that, After adjusting the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval in which the collection temperature is located in the frequency reduction rule, the method further comprises: based on the collection temperature being less than a second preset temperature and determining that the heat pump system is cooling down, adjusting the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval in which the collection temperature is located in the frequency increase rule; wherein the lower the temperature interval, the higher the target operating frequency corresponding to the temperature interval; the target operating frequencies corresponding to the same temperature interval in the frequency increase rule and the frequency reduction rule are different. 4.The control method of a laundry treating apparatus according to claim 3, characterized in that, After adjusting the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval in which the collection temperature is located in the frequency increase rule, the method further comprises: based on the collection temperature being greater than the first preset temperature and determining that the heat pump system is warming up, adjusting the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval in which the collection temperature is located in the frequency reduction rule.

5. The control method of a laundry treating apparatus according to claim 2 or 4, characterized in that, The determination that the heat pump system is warming up and the adjustment of the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval in which the collection temperature is located in the frequency reduction rule comprises: determining that the collection temperature rises from a first temperature to a second temperature, and that the first temperature and the second temperature belong to different temperature intervals; adjusting the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval in which the second temperature is located in the frequency reduction rule. 6.The control method of a laundry treating apparatus according to claim 3, characterized in that, The determination that the heat pump system is cooling down and the adjustment of the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval in which the collection temperature is located in the frequency increase rule comprises: determining that the collection temperature falls from a third temperature to a fourth temperature, and that the fourth temperature and the third temperature belong to different temperature intervals; determining that the operating frequency of the compressor corresponding to the temperature interval in which the fourth temperature is located in the frequency increase rule is greater than the operating frequency of the compressor corresponding to the temperature interval in which the third temperature is located in the frequency reduction rule, and adjusting the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval in which the fourth temperature is located in the frequency increase rule. 7.The control method of a laundry treating apparatus according to claim 2, characterized in that, After adjusting the operating frequency of the compressor to the target operating frequency corresponding to the temperature interval in which the collection temperature is located in the frequency reduction rule, the method further comprises: determining that the collection temperature falls from a third temperature to a fourth temperature, and that the fourth temperature and the third temperature belong to different temperature intervals; The fourth temperature interval corresponding to the fourth temperature in the frequency increasing rule is determined, and the compressor operating frequency corresponding to the fourth temperature interval is less than or equal to the compressor operating frequency corresponding to the third temperature interval in the frequency decreasing rule; the current operating frequency of the compressor is taken as the target operating frequency, and the operating frequency is kept unchanged. 8.The control method of a laundry treating apparatus according to claim 1, characterized in that, Also comprising: It is determined that the collected temperature is greater than the preset limit temperature of the heat pump system, and the compressor is controlled to stop operating; The preset limit temperature of the heat pump system is greater than or equal to the maximum value of the maximum temperature interval.

9. A computer-readable storage medium, characterized in that, The computer readable storage medium stores programs or instructions; the programs or instructions make the computer execute the steps of the method according to any one of claims 1 to 8. 10.A laundry treating apparatus, characterized by, It comprises a processor and a memory, and the processor executes the steps of the method according to any one of claims 1 to 8 by calling the programs or instructions stored in the memory. It comprises a processor and a memory, and the processor executes the steps of the method according to any one of claims 1 to 8 by calling the programs or instructions stored in the memory.

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