Control Method, Device, Washing and Drying Machine, and Storage Medium of a Washing and Drying Machine

Abstract

The present invention discloses a control method, device, dryer-washer, and storage medium for a dryer-washer. The method includes: when the dryer-washer enters the drying stage, obtaining the weight of the clothes to be dried in the dryer-washer, denoted as the weight of the clothes to be dried; determining a preset temperature rise and fall time parameter according to the weight of the clothes to be dried; turning on the heating tube of the dryer-washer to perform temperature rise and fall treatment on the inside of the drum of the dryer-washer, and recording the temperature rise and fall time; determining whether the time for the dryer-washer to enter the dehumidification stage from the drying stage has arrived according to the temperature rise and fall time and the preset temperature rise and fall time parameter; after determining that the time for the dryer-washer to enter the dehumidification stage from the drying stage has arrived, controlling the dryer-washer to enter the dehumidification stage from the drying stage, so as to realize the drying and dehumidification treatment of the clothes to be dried. In this solution, by determining the timing of turning on the condensation dehumidification according to the temperature rise and fall time of the air inlet temperature of the dryer-washer, it is beneficial to improve the drying efficiency of the clothes in the drum and save costs.

Description

Technical Field

[0001] The present invention belongs to the technical field of washing and drying machines, and particularly relates to a control method, device, washing and drying machine, and storage medium for a washing and drying machine, and more particularly to a control method, device, washing and drying machine, and storage medium for controlling the temperature rise during drying of a washing and drying machine. Background Art

[0002] Washing and drying machines are essential tools in people's lives and bring great convenience to people's lives. With the development of science and technology, there are already washing and drying integrated machines that can dry clothes after washing. Due to the convenience of the drying function and its application in humid areas, washing and drying integrated machines are becoming more and more popular.

[0003] In related solutions, the dehumidification function of washing and drying machines is mostly carried out by means of heat and cold exchange. Specifically: high-temperature gas is sent into the drum of the washing and drying machine through a heating pipe and a blower to heat the clothes. After the temperature of the clothes rises, the moisture in the clothes will be evaporated, and the air in the drum will become high-temperature and high-humidity. At this time, cold condensate is used to exchange heat with the high-temperature and high-humidity gas to achieve the effect of condensation dehumidification. Before dehumidification, it is necessary to heat the clothes in the drum, but most washing and drying machines use the temperature of a single temperature sensor to replace the temperature in the drum; in fact, the temperature of a single temperature sensor cannot fully replace the temperature in the drum. If the temperature of a single temperature sensor is higher than the temperature in the drum, the dehumidification efficiency of directly introducing cold condensate for dehumidification operation is not high, and water resources are wasted. Using multiple temperature sensors will increase costs.

[0004] The above content is only used to assist in understanding the technical solution of the present invention and does not represent an admission that the above content is prior art. Summary of the Invention

[0005] The purpose of the present invention is to provide a control method, device, washing and drying machine, and storage medium for a washing and drying machine, so as to solve the problems that when a washing and drying machine uses the temperature of a single temperature sensor to replace the temperature in the drum, if cold condensate is directly introduced for dehumidification operation, the dehumidification efficiency is not high and water resources are wasted, and when more than two temperature sensors are used to collect the temperature in the drum, the cost of the washing and drying machine will increase, and achieve the effect of determining the timing of starting condensation dehumidification according to the heating and cooling time of the air inlet temperature of the washing and drying machine, which is beneficial to improving the drying efficiency of the clothes in the drum and saving costs.

[0006] The present invention provides a control method for a washing and drying machine, including: when the washing and drying machine enters the drying stage, obtaining the weight of the clothes to be dried in the washing and drying machine, denoted as the weight of the clothes to be dried; determining a preset temperature rising and falling time parameter according to the weight of the clothes to be dried; the preset temperature rising and falling time parameter is a time parameter for adjusting the temperature inside the drum of the washing and drying machine; turning on the heating tube of the washing and drying machine to perform temperature rising and falling treatment on the temperature inside the drum of the washing and drying machine, and recording the temperature rising and falling time; determining whether the time has come for the washing and drying machine to enter the dehumidification stage from the drying stage according to the temperature rising and falling time and the preset temperature rising and falling time parameter; after determining that the time has come for the washing and drying machine to enter the dehumidification stage from the drying stage, controlling the washing and drying machine to enter the dehumidification stage from the drying stage, so as to realize the drying and dehumidification treatment of the clothes to be dried.

[0007] In some embodiments, determining a preset temperature rising and falling time parameter according to the weight of the clothes to be dried includes: determining the current load level of the weight of the clothes to be dried within a set load level range according to the weight of the clothes to be dried; according to the correspondence between the set load level and the set preset time parameter, determining the set preset time parameter corresponding to the set load level that is the same as the current load level in the correspondence as the current preset time parameter corresponding to the current load level; taking this current preset time parameter as the preset temperature rising and falling time parameter.

[0008] In some embodiments, the temperature rising and falling time includes: the temperature rising time and the temperature falling time; turning on the heating tube of the washing and drying machine to perform temperature rising and falling treatment on the temperature inside the drum of the washing and drying machine, and recording the temperature rising and falling time includes: turning on the heating tube of the washing and drying machine to perform temperature rising and falling treatment on the temperature inside the drum of the washing and drying machine, so that the temperature of the air inlet of the washing and drying machine rises from the initial temperature for temperature rising to a first preset temperature, and then rises from the first preset temperature to a second preset temperature; recording the time when the temperature of the air inlet of the washing and drying machine rises from the first preset temperature to the second preset temperature as the temperature rising time; during the process of turning on the heating tube of the washing and drying machine to perform temperature rising and falling treatment on the temperature inside the drum of the washing and drying machine, if the temperature of the air inlet of the washing and drying machine reaches the second preset temperature, then turn off the heating tube; if the temperature of the air inlet of the washing and drying machine drops to the first preset temperature, then turn on the heating tube again, and cycle in this way, and record the time when the temperature of the air inlet of the washing and drying machine drops from the second preset temperature to the first preset temperature as the temperature falling time.

[0009] In some embodiments, the preset lifting time parameter includes: a preset heating-up time and a preset cooling-down time; determining whether the time has come for the dryer to enter the dehumidification stage of the dryer according to the heating and cooling time and the preset heating and cooling time parameter includes: determining whether the time has come for the dryer to enter the dehumidification stage of the dryer according to the heating-up time and the cooling-down time; wherein, determining whether the time has come for the dryer to enter the dehumidification stage of the dryer according to the heating-up time and the cooling-down time includes: determining whether the heating-up time is less than the preset heating-up time; if the heating-up time is greater than or equal to the preset heating-up time, return to continue the heating and cooling treatment of the temperature inside the drum of the dryer; if the heating-up time is less than the preset heating-up time, determine whether the cooling-down time is greater than the preset cooling-down time; if the cooling-down time is greater than the preset cooling-down time, determine that the time has come for the dryer to enter the dehumidification stage from the drying stage; if the heating-up time is greater than or equal to the preset heating-up time, or the cooling-down time is less than or equal to the preset cooling-down time, return to continue the heating and cooling treatment of the temperature inside the drum of the dryer.

[0010] In some embodiments, the preset lifting time parameter further includes: a preset maximum heating time; the heating and cooling time further includes: a total heating time; turning on the heating tube of the dryer to perform heating and cooling treatment on the temperature inside the drum of the dryer and recording the heating and cooling time further includes: during the process of turning on the heating tube of the dryer to perform heating and cooling treatment on the temperature inside the drum of the dryer, recording the time when the heating tube is turned on as the total heating time for heating up the air inlet temperature of the dryer; correspondingly, determining whether the time has come for the dryer to enter the dehumidification stage of the dryer according to the heating and cooling time and the preset heating and cooling time parameter further includes: determining whether the total heating time is greater than the preset maximum heating duration; if the total heating time is greater than the preset maximum heating duration, determine that the time has come for the dryer to enter the dehumidification stage from the drying stage; if the total heating time is less than or equal to the preset maximum heating duration, return to determine whether the time has come for the dryer to enter the dehumidification stage from the drying stage according to the heating-up time and the cooling-down time.

[0011] Matched with the above method, on the other hand, the present invention provides a control device for a washing and drying machine, including: an acquisition unit configured to, when the washing and drying machine enters the drying stage, acquire the weight of the clothes to be dried in the washing and drying machine, denoted as the weight of the clothes to be dried; a control unit configured to determine a preset temperature rise and fall time parameter according to the weight of the clothes to be dried; the preset temperature rise and fall time parameter is a time parameter for adjusting the temperature inside the drum of the washing and drying machine; the control unit is further configured to turn on the heating tube of the washing and drying machine, perform temperature rise and fall processing on the temperature inside the drum of the washing and drying machine, and record the temperature rise and fall time; the control unit is further configured to determine whether the time has come for the washing and drying machine to enter the dehumidification stage from the drying stage according to the temperature rise and fall time and the preset temperature rise and fall time parameter; the control unit is further configured to, after determining that the time has come for the washing and drying machine to enter the dehumidification stage from the drying stage, control the washing and drying machine to enter the dehumidification stage from the drying stage, so as to realize the drying and dehumidification processing of the clothes to be dried.

[0012] In some embodiments, the control unit determines the preset temperature rise and fall time parameter according to the weight of the clothes to be dried, including: determining the current load level of the weight of the clothes to be dried in the set load level range according to the weight of the clothes to be dried; according to the correspondence between the set load level and the set preset time parameter, determining the set preset time parameter corresponding to the set load level that is the same as the current load level in the correspondence as the current preset time parameter corresponding to the current load level; and taking the current preset time parameter as the preset temperature rise and fall time parameter.

[0013] In some embodiments, the temperature rise and fall time includes: a temperature rise time and a temperature fall time; the control unit turns on the heating tube of the washing and drying machine, performs temperature rise and fall processing on the temperature inside the drum of the washing and drying machine, and records the temperature rise and fall time, including: turning on the heating tube of the washing and drying machine, performing temperature rise and fall processing on the temperature inside the drum of the washing and drying machine, so that the air inlet temperature of the washing and drying machine rises from the initial temperature rise temperature to the first preset temperature, and then rises from the first preset temperature to the second preset temperature; recording the time when the air inlet temperature of the washing and drying machine rises from the first preset temperature to the second preset temperature as the temperature rise time; during the process of turning on the heating tube of the washing and drying machine and performing temperature rise and fall processing on the temperature inside the drum of the washing and drying machine, if the air inlet temperature of the washing and drying machine reaches the second preset temperature, then turn off the heating tube; if the air inlet temperature of the washing and drying machine drops to the first preset temperature, then turn on the heating tube again, and cycle in this way, and record the time when the air inlet temperature of the washing and drying machine drops from the second preset temperature to the first preset temperature as the temperature fall time.

[0014] In some embodiments, the preset lifting time parameter includes a preset heating-up time and a preset cooling-down time. The control unit determines whether it is time for the dryer to enter the dehumidification stage from the drying stage according to the lifting and cooling time and the preset lifting and cooling time parameter, including: determining whether it is time for the dryer to enter the dehumidification stage from the drying stage according to the heating-up time and the cooling-down time. Wherein, the control unit determines whether it is time for the dryer to enter the dehumidification stage from the drying stage according to the heating-up time and the cooling-down time, including: determining whether the heating-up time is less than the preset heating-up time; if the heating-up time is greater than or equal to the preset heating-up time, then return to continue the lifting and cooling process of the temperature inside the drum of the dryer; if the heating-up time is less than the preset heating-up time, then determine whether the cooling-down time is greater than the preset cooling-down time; if the cooling-down time is greater than the preset cooling-down time, then determine that it is time for the dryer to enter the dehumidification stage from the drying stage; if the heating-up time is greater than or equal to the preset heating-up time, or the cooling-down time is less than or equal to the preset cooling-down time, then return to continue the lifting and cooling process of the temperature inside the drum of the dryer.

[0015] In some embodiments, the preset lifting time parameter further includes a preset maximum heating time; the lifting and cooling time further includes a total heating time. The control unit turns on the heating tube of the dryer to perform the lifting and cooling process on the temperature inside the drum of the dryer and records the lifting and cooling time, further including: during the process of turning on the heating tube of the dryer to perform the lifting and cooling process on the temperature inside the drum of the dryer, recording the time when the heating tube is turned on as the total heating time for heating up the air inlet temperature of the dryer. Correspondingly, the control unit determines whether it is time for the dryer to enter the dehumidification stage from the drying stage according to the lifting and cooling time and the preset lifting and cooling time parameter, further including: determining whether the total heating time is greater than the preset maximum heating duration; if the total heating time is greater than the preset maximum heating duration, then determine that it is time for the dryer to enter the dehumidification stage from the drying stage; if the total heating time is less than or equal to the preset maximum heating duration, then return to determine whether it is time for the dryer to enter the dehumidification stage from the drying stage according to the heating-up time and the cooling-down time.

[0016] Matched with the above device, on the other hand, the present invention provides a dryer, including the control device of the dryer described above.

[0017] In accordance with the above method, the present invention provides a storage medium on another aspect, wherein the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the above-mentioned control method for the washer-dryer.

[0018] Therefore, the scheme of the present invention intermittently heats the clothes in the drum of the washer-dryer by turning on the heating pipe, and determines whether the temperature in the drum of the washer-dryer reaches the condensation temperature according to the heating and cooling time of the air inlet temperature of the washer-dryer, so as to turn on the condensation dehumidification when it is determined that the temperature in the drum of the washer-dryer reaches the condensation temperature, and continues to turn on the heating pipe to intermittently heat the clothes in the drum of the washer-dryer when it is determined that the temperature in the drum of the washer-dryer does not reach the condensation temperature, and only turns on the condensation dehumidification when the temperature in the drum of the washer-dryer reaches the condensation temperature, thereby realizing the control of drying and dehumidification of the clothes in the drum. Therefore, by determining the timing to turn on the condensation dehumidification according to the heating and cooling time of the air inlet temperature of the washer-dryer, it is beneficial to improve the drying efficiency of the clothes in the drum and save costs.

[0019] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the present invention.

[0020] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 1 is a flow chart of an embodiment of a control method for a washer-dryer according to the present invention;

[0022] Figure 2 This is a flow chart of an embodiment of the method of the present invention for determining preset heating and cooling time parameters according to the weight of the clothes to be dried;

[0023] Figure 3 This is a flow chart of an embodiment of the method of the present invention in which the heating tube is turned on to perform temperature increase and decrease processing in the cylinder and the temperature increase and decrease time is recorded;

[0024] Figure 4 1. A flow chart of an embodiment of the method of the present invention for determining whether the timing of entering the dehumidification stage from the drying stage has arrived based on the temperature rise and fall time;

[0025] Figure 5 1. A flow chart of an embodiment of the method of the present invention for determining whether the timing of entering the dehumidification stage from the drying stage has arrived based on the total heating time;

[0026] Figure 6 Schematic diagram of the structure of an embodiment of a control device for a washer-dryer of the present invention;

[0027] Figure 7Schematic flow chart of an embodiment of the drying temperature rise control method for a washing and drying machine.

[0028] In combination with the accompanying drawings, the reference numerals in the embodiments of the present invention are as follows:

[0029] 102 - Acquisition unit; 104 - Control unit. Specific embodiments

[0030] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0031] It is considered that before dehumidification, it is necessary to heat the clothes in the drum. However, when the washing and drying machine uses the temperature of a single temperature sensor to replace the temperature in the drum, since the temperature of a single temperature sensor is higher than the temperature in the drum, if condensed water is directly introduced for dehumidification operation, there will be problems of low dehumidification efficiency and waste of water resources. And when two or more temperature sensors are used to collect the temperature in the drum, it will increase the cost of the washing and drying machine. Therefore, the solution of the present invention provides a control method for a washing and drying machine, specifically a control method for drying temperature rise of a washing and drying machine, which can accurately control the temperature of the air inlet of the washing and drying machine to perform condensation dehumidification operation after the temperature of the clothes in the drum meets the condensation temperature, can improve the drying efficiency, save water resources, and does not require additional cost for temperature sensors.

[0032] According to an embodiment of the present invention, a control method for a washing and drying machine is provided, as Figure 1 shown in the schematic flow chart of an embodiment of the method of the present invention. The washing and drying machine has a drying function and a dehumidification function. The control method of the washing and drying machine includes: step S110 to step S150.

[0033] At step S110, when the washing and drying machine enters the drying stage, obtain the weight of the clothes to be dried in the washing and drying machine, denoted as the weight of the clothes to be dried.

[0034] At step S120, determine a preset temperature rise and fall time parameter according to the weight of the clothes to be dried. The preset temperature rise and fall time parameter is a time parameter used to adjust the temperature in the drum of the washing and drying machine.

[0035] In some embodiments, for the specific process of determining the preset temperature rise and fall time parameter according to the weight of the clothes to be dried in step S120, refer to the following exemplary description.

[0036] The following in combination with Figure 2The flowchart of an embodiment for determining the preset heating and cooling time parameters according to the weight of the clothes to be dried in the method of the present invention is shown, further illustrating the specific process of determining the preset heating and cooling time parameters according to the weight of the clothes to be dried in step S120, including: step S210 to step S220.

[0037] Step S210, according to the weight of the clothes to be dried, determine the current load level of the weight of the clothes to be dried within the set load level range.

[0038] Step S220, according to the corresponding relationship between the set load level and the set preset time parameter, determine the set preset time parameter corresponding to the set load level that is the same as the current load level in this corresponding relationship as the current preset time parameter corresponding to the current load level. Take this current preset time parameter as the preset heating and cooling time parameter.

[0039] Specifically, Figure 7 It is a flowchart of an embodiment of the drying heating control method of a washing and drying machine. As Figure 7 shown, the drying heating control method of the washing and drying machine includes:

[0040] Step 1. After the washing stage of the washing and drying machine ends, enter the drying stage and start drying the clothes in the drum of the washing and drying machine.

[0041] Step 2. Weigh the clothes to be dried in the drum to obtain the weight of the clothes to be dried. According to the preset load level, determine the level to which the weight of the clothes to be dried belongs, denoted as the current load level. According to the current load level, determine the corresponding current preset time parameters such as the preset heating time t1, the preset cooling time t2, and the preset maximum heating time t3.

[0042] At step S130, turn on the heating tube of the washing and drying machine to perform heating and cooling treatment on the temperature inside the drum of the washing and drying machine, and record the heating and cooling time.

[0043] At step S140, according to the heating and cooling time and the preset heating and cooling time parameters, determine whether the time for the washing and drying machine to enter the dehumidification stage from the drying stage has arrived.

[0044] At step S150, after determining that the time for the washing and drying machine to enter the dehumidification stage from the drying stage has arrived, control the washing and drying machine to enter the dehumidification stage from the drying stage to achieve drying and dehumidification treatment of the clothes to be dried.

[0045] A control method for drying temperature rise of a washing and drying machine provided by the solution of the present invention intermittently heats the clothes in the drum of the washing and drying machine, and determines whether the temperature in the drum of the washing and drying machine reaches the condensation temperature according to the temperature rise and fall of the air inlet temperature of the washing and drying machine, so that the local temperature in the drum of the washing and drying machine approaches the temperature of the temperature sensing package, making the temperature in the drum tend to be stable and balanced. At this time, the temperature in the drum read is the temperature of the temperature sensing package more accurately. Therefore, the temperature of the clothes in the drum of the washing and drying machine can be accurately controlled, and the condensation and dehumidification operation can be carried out after the temperature of the clothes in the drum meets the condensation temperature, which can improve the drying efficiency. Therefore, the amount of condensed water used is reduced, so water resources are saved, and there is no need to additionally increase the cost of the temperature sensing package.

[0046] In some embodiments, the temperature rising and falling time includes: the temperature rising time and the temperature falling time.

[0047] In step S130, the heating tube of the washing and drying machine is turned on to perform temperature rising and falling treatment on the temperature in the drum of the washing and drying machine, and the temperature rising and falling time is recorded, including:

[0048] The following combines Figure 3 The flowchart of an embodiment of the method of the present invention for turning on the heating tube to perform temperature rising and falling treatment on the drum and recording the temperature rising and falling time further illustrates the specific process of turning on the heating tube to perform temperature rising and falling treatment on the drum and recording the temperature rising and falling time in step S130, including: step S310 to step S330.

[0049] Step S310, turn on the heating tube of the washing and drying machine to perform temperature rising and falling treatment on the temperature in the drum of the washing and drying machine, so that the air inlet temperature of the washing and drying machine rises from the initial temperature of temperature rising to the first preset temperature, and then rises from the first preset temperature to the second preset temperature.

[0050] Step S320, record the time when the air inlet temperature of the washing and drying machine rises from the first preset temperature to the second preset temperature as the temperature rising time.

[0051] Step S330, in the process of turning on the heating tube of the washing and drying machine to perform temperature rising and falling treatment on the temperature in the drum of the washing and drying machine, if the air inlet temperature of the washing and drying machine reaches the second preset temperature, turn off the heating tube; if the air inlet temperature of the washing and drying machine drops to the first preset temperature, turn on the heating tube again, and so on in a cycle, and record the time when the air inlet temperature of the washing and drying machine drops from the second preset temperature to the first preset temperature as the temperature falling time.

[0052] As Figure 7 shown, the drying temperature rising control method of the washing and drying machine further includes:

[0053] Step 2: Before turning on the heating tube, obtain the temperature of the air inlet of the washer-dryer as the temperature of the whole washer-dryer, denoted as the initial temperature T1 for temperature rise. Among them, the initial temperature T1 for temperature rise depends on the actual temperature inside the drum before running to the dehumidification stage.

[0054] Step 3: Turn on the heating tube of the washer-dryer (such as the drying heating tube, which can be located at the air inlet of the washer-dryer), and preset the temperatures for starting and stopping the drying heating tube, such as preset temperature T2 and preset temperature T3. Preset temperature T2 < preset temperature T3. The preset temperature depends on the parameters of the washer-dryer itself. For example, the preset temperature T2 can be 75°C - 85°C, and the preset temperature T3 can be 100°C - 110°C. Specifically, it needs to be determined according to the overall condition of the washer-dryer (such as the power of the heating tube, the overall heat dissipation system, the temperature resistance of the materials of the whole machine, etc.).

[0055] Step 4: After turning on the drying heating tube to heat the inside of the drum, stop heating when the temperature of the air inlet of the washer-dryer reaches the preset temperature T3. When the temperature of the air inlet of the washer-dryer reaches the preset temperature T2, turn on the heating tube again. This operation is to cycle the heating tube to maintain the temperature inside the drum.

[0056] Among them, record the temperature rise time t0 required for the air inlet temperature of the washer-dryer to rise from the initial temperature T1 for temperature rise to the preset temperature T2, the temperature rise time t4 required for the air inlet temperature of the washer-dryer to rise from the preset temperature T2 to the preset temperature T3, and record the temperature drop time t5 required for the air inlet temperature of the washer-dryer to drop from the preset temperature T3 to the preset temperature T2.

[0057] A control method for drying temperature rise of a washer-dryer provided by the solution of the present invention intermittently heats the clothes inside the drum of the washer-dryer, and determines whether the temperature inside the drum of the washer-dryer reaches the condensation temperature according to the temperature rise and drop of the air inlet temperature of the washer-dryer, and records the initial temperature T1 for temperature rise during temperature rise. Turn on the heating tube for temperature rise operation, and record the time required for the temperature to rise from the initial temperature T1 for temperature rise to the preset temperature T2, and the time required for the temperature to rise from the preset temperature T2 to the preset temperature T3. After the temperature after temperature rise reaches the preset temperature T3, turn off the heating tube, and record the time required for the temperature to drop from the preset temperature T3 to the preset temperature T2. According to the recorded temperature rise time and temperature drop time, compare with the preset temperature rise time and temperature drop time. If the conditions are met, perform the condensation dehumidification operation, otherwise repeat the temperature rise and drop operation, which can improve the drying efficiency. Therefore, the amount of condensed water used is reduced, so water resources are saved, and there is no need to additionally increase the cost of the temperature sensor.

[0058] In some embodiments, the preset lift time parameter includes: a preset temperature rise time and a preset temperature drop time.

[0059] In step S140, determining whether the time has come for the dryer to enter the dehumidification stage of the dryer according to the heating and cooling time and the preset heating and cooling time parameters includes: determining whether the time has come for the dryer to enter the dehumidification stage of the dryer according to the heating time and the cooling time.

[0060] Among them, for the specific process of determining whether the time has come for the dryer to enter the dehumidification stage of the dryer according to the heating time and the cooling time, refer to the following exemplary description.

[0061] The following combines Figure 4 The flowchart of an embodiment of the method according to the present invention for determining whether the time has come to enter the dehumidification stage from the drying stage according to the heating and cooling time is shown to further illustrate the specific process of determining whether the time has come to enter the dehumidification stage from the drying stage according to the heating and cooling time, including: steps S410 to S430.

[0062] Step S410, determining whether the heating time is less than the preset heating time.

[0063] Step S420, if the heating time is greater than or equal to the preset heating time, then return to continue the heating and cooling process of the temperature inside the drum of the dryer, that is, continue to turn on the heating tube of the dryer to perform the heating and cooling process on the temperature inside the drum of the dryer, and record the heating and cooling time.

[0064] Step S430, if the heating time is less than the preset heating time, then determine whether the cooling time is greater than the preset cooling time.

[0065] Step S440, if the cooling time is greater than the preset cooling time, then determine that the time has come for the dryer to enter the dehumidification stage.

[0066] Step S450, if the heating time is greater than or equal to the preset heating time, or the cooling time is less than or equal to the preset cooling time, then return to continue the heating and cooling process of the temperature inside the drum of the dryer, that is, continue to turn on the heating tube of the dryer to perform the heating and cooling process on the temperature inside the drum of the dryer, and record the heating and cooling time.

[0067] As Figure 7 shown, the drying heating control method of the dryer further includes:

[0068] Step 6, determining whether the heating time t4 is less than the preset heating time t1: if so, execute step 7, if not, return to step 3 to continue the heating and cooling operations.

[0069] Step 7: Determine whether the cooling time t5 is greater than the preset cooling time t2. If so, start the condensation dehumidification operation, that is, enter the dehumidification stage from the drying stage. If not, return to Step 3 to continue the heating and cooling operations.

[0070] In Steps 6 to 7, compare the heating time t4 with the preset heating time t1. If the heating time t4 is less than the preset heating time t1, then compare the cooling time t5 with the preset cooling time t3. If the cooling time t5 is greater than the preset cooling time t3 at this time, it means that the temperature in the drum tends to be saturated and dehumidification treatment can be carried out. Otherwise, it means that the local temperature in the drum is appropriate, only the temperature of the temperature sensor meets the heating and cooling requirements, and the actual load temperature has not reached saturation, so dehumidification operation is not suitable, and the operations of the above Steps 3 and 4 are carried out again. If the heating time t4 is greater than or equal to the preset heating time t1, it means that the actual load temperature has not reached saturation, and dehumidification operation is not suitable, and the operations of the above Steps 3 and 4 are carried out again.

[0071] In some embodiments, the preset lifting and lowering time parameters further include: a preset maximum heating time. For example: In Step 4, record the time from when the dryer starts the heating tube to heat up from the initial heating temperature T1 to the current time as the total heating time.

[0072] The lifting and lowering temperature time further includes: the total heating time. Specifically, perform a weighing process before heating to determine the load level in the drum. Look up the table according to the load level in the drum to determine the preset heating time t1, the preset cooling time t2, and the preset maximum heating time t3. For the setting of the corresponding preset time, please refer to the following table specifically.

[0073]

[0074] The above examples are from the dryer used in the test. If the overall structure of the dryer is different, the position of the temperature sensor is different, the flow rate of the condenser tube is different, and the power of the heating tube is different, the preset time will vary slightly. The specific preset time is related to the overall drying system of the dryer. That is to say, different overall structures of the dryer, different positions of the temperature sensor, different flow rates of the condenser tube, and different powers of the heating tube will result in different temperatures in the drum under the same heating time.

[0075] In Step S130, when starting the heating tube of the dryer to perform temperature raising and lowering treatment on the temperature in the drum of the dryer and record the lifting and lowering temperature time, it further includes: during the process of starting the heating tube of the dryer to perform temperature raising and lowering treatment on the temperature in the drum of the dryer, record the time when the heating tube is turned on as the total heating time for raising the temperature of the air inlet of the dryer.

[0076] Accordingly, in step S140, determining whether the time has come for the dryer to enter the dehumidification stage from the drying stage according to the heating and cooling time and the preset heating and cooling time parameters further includes: determining whether the time has come for the dryer to enter the dehumidification stage from the drying stage according to the total heating time.

[0077] The following combines Figure 5 A schematic flowchart of an embodiment of determining whether the time has come for the dryer to enter the dehumidification stage from the drying stage according to the total heating time in the method of the present invention is shown to further illustrate the specific process of determining whether the time has come for the dryer to enter the dehumidification stage from the drying stage according to the total heating time, including: steps S510 to S530.

[0078] Step S510, determining whether the total heating time is greater than the preset maximum heating duration.

[0079] Step S520, if the total heating time is greater than the preset maximum heating duration, determining that the time has come for the dryer to enter the dehumidification stage from the drying stage.

[0080] Step S530, if the total heating time is less than or equal to the preset maximum heating duration, return to determine whether the time has come for the dryer to enter the dehumidification stage from the drying stage according to the heating time and the cooling time.

[0081] As Figure 7 shown, the drying temperature increase control method of the dryer further includes: step 5, determining whether the heating time t is greater than the preset maximum heating time t3: if so, start performing condensation dehumidification operation, that is, enter the dehumidification stage from the drying stage, and if not, perform step 6.

[0082] Among them, the preset maximum heating time t3 is confirmed according to the load level. When the total heating time, that is, the heating time t = heating time t0 + heating time t4, meets the preset maximum heating time t3, even if the heating and cooling times do not meet the determination conditions of the above steps 5 to 7, directly enter the drying process, that is, start performing condensation dehumidification operation and enter the dehumidification stage from the drying stage.

[0083] The solution of the present invention intermittently heats the clothes in the drum of the washer-dryer, and determines whether the temperature in the drum of the washer-dryer reaches the condensation temperature according to the temperature rise and fall of the air inlet temperature of the washer-dryer. When the temperature rises, record the initial temperature T1 of the temperature rise, turn on the heating tube for the temperature rise operation, and record the time required for the temperature to rise to the preset temperature T2 and the time required for the temperature to rise to the preset temperature T3. After the temperature reaches T3, turn off the heating tube and record the time required for the temperature to drop to the preset temperature T2. Furthermore, compare the recorded temperature rise time and temperature drop time with the preset temperature rise time and preset temperature drop time: if the conditions are met, perform the condensation dehumidification operation, otherwise repeat the temperature rise and fall operation. In this way, by determining whether the temperature in the drum reaches saturation (i.e., tends to be saturated) according to the temperature rise and fall time when the heating tube starts and stops, and performing the dehumidification operation only when saturation is reached, the drying efficiency is improved. Among them, in the case where the temperature rise time t4 is less than the preset temperature rise time t1, compare the temperature drop time t5 with the preset temperature drop time t3. If the temperature drop time t5 is greater than the preset temperature drop time t3 at this time, it means that the temperature in the drum tends to be saturated.

[0084] Adopting the technical solution of this embodiment, intermittently heat the clothes in the drum of the washer-dryer by turning on the heating tube, and determine whether the temperature in the drum of the washer-dryer reaches the condensation temperature according to the time of temperature rise and fall of the air inlet temperature of the washer-dryer, so as to turn on the condensation dehumidification when it is determined that the temperature in the drum of the washer-dryer reaches the condensation temperature, and continue to turn on the heating tube to intermittently heat the clothes in the drum of the washer-dryer when it is determined that the temperature in the drum of the washer-dryer does not reach the condensation temperature until the condensation dehumidification is turned on when the temperature in the drum of the washer-dryer reaches the condensation temperature, realizing the control of drying and dehumidifying the clothes in the drum. Thus, by determining the timing of turning on the condensation dehumidification according to the time of temperature rise and fall of the air inlet temperature of the washer-dryer, it is beneficial to improve the drying efficiency of the clothes in the drum and save costs.

[0085] According to an embodiment of the present invention, there is also provided a control device for a washer-dryer corresponding to the control method of the washer-dryer. Refer to Figure 6 The structural schematic diagram of an embodiment of the device of the present invention shown. The washer-dryer has a drying function and a dehumidifying function. The control device of the washer-dryer includes: an acquisition unit 102 and a control unit 104.

[0086] Among them, the acquisition unit 102 is configured to obtain the weight of the clothes to be dried in the washer-dryer when the washer-dryer enters the drying stage, denoted as the weight of the clothes to be dried. The specific functions and processes of this acquisition unit 102 are referred to step S110.

[0087] The control unit 104 is configured to determine a preset temperature rise and fall time parameter according to the weight of the clothes to be dried. The preset temperature rise and fall time parameter is a time parameter used to adjust the temperature inside the drum of the washer-dryer. For the specific functions and processes of this control unit 104, refer to step S120.

[0088] In some embodiments, the control unit 104 determines a preset temperature rise and fall time parameter according to the weight of the clothes to be dried, including:

[0089] The control unit 104 is further specifically configured to determine the current load level of the weight of the clothes to be dried within the set load level range according to the weight of the clothes to be dried. For the specific functions and processes of this control unit 104, refer to step S210.

[0090] The control unit 104 is further specifically configured to determine, according to the correspondence between the set load level and the set preset time parameter, the set preset time parameter corresponding to the set load level that is the same as the current load level in this correspondence as the current preset time parameter corresponding to the current load level. Take this current preset time parameter as the preset temperature rise and fall time parameter. For the specific functions and processes of this control unit 104, refer to step S220.

[0091] Figure 7 It is a schematic flowchart of an embodiment of the drying temperature rise control device of the washer-dryer. As Figure 7 shown, the drying temperature rise control device of the washer-dryer includes:

[0092] Step 1: After the washing stage of the washer-dryer ends, it enters the drying stage and starts to dry the clothes inside the drum of the washer-dryer.

[0093] Step 2: Weigh the clothes to be dried inside the drum to obtain the weight of the clothes to be dried. Determine the level to which the weight of the clothes to be dried belongs according to the preset load level, and record it as the current load level. Determine the current preset time parameters corresponding to this current load level, such as the preset temperature rise time t1, the preset temperature fall time t2, and the preset maximum heating time t3, according to the current load level.

[0094] The control unit 104 is further configured to turn on the heating tube of the washer-dryer, perform temperature rise and fall processing on the temperature inside the drum of the washer-dryer, and record the temperature rise and fall time. For the specific functions and processes of this control unit 104, refer to step S130.

[0095] The control unit 104 is further configured to determine whether the time has come for the washer-dryer to enter the dehumidification stage from the drying stage according to the temperature rise and fall time and the preset temperature rise and fall time parameter. For the specific functions and processes of this control unit 104, refer to step S140.

[0096] The control unit 104 is further configured to control the dryer to enter the dehumidification stage from the drying stage after determining that the time for the dryer to enter the dehumidification stage from the drying stage has arrived, so as to implement the drying and dehumidification processes for the clothes to be dried. For the specific functions and processes of this control unit 104, refer to step S150.

[0097] A control device for controlling the temperature rise during drying of a dryer provided by the solution of the present invention intermittently heats the clothes in the drum of the dryer, and determines whether the temperature in the drum of the dryer reaches the condensation temperature according to the temperature rise and fall of the air inlet temperature of the dryer, so that the local temperature in the drum of the dryer approaches the temperature of the temperature sensing package, making the temperature in the drum tend to be stable and balanced. At this time, the temperature in the drum read is the temperature of the temperature sensing package more accurately. Therefore, the temperature of the clothes in the drum of the dryer can be accurately controlled, and the condensation and dehumidification operation can be performed after the temperature of the clothes in the drum meets the condensation temperature, which can improve the drying efficiency. Therefore, the amount of condensed water used is reduced, so water resources are saved, and there is no need to additionally increase the cost of the temperature sensing package.

[0098] In some embodiments, the temperature rise and fall time includes: the temperature rise time and the temperature fall time.

[0099] The control unit 104 turns on the heating tube of the dryer to perform temperature rise and fall processing on the temperature in the drum of the dryer, and records the temperature rise and fall time, including:

[0100] The control unit 104 is specifically further configured to turn on the heating tube of the dryer to perform temperature rise and fall processing on the temperature in the drum of the dryer, so that the air inlet temperature of the dryer rises from the initial temperature rise to the first preset temperature, and then rises from the first preset temperature to the second preset temperature. For the specific functions and processes of this control unit 104, refer to step S310.

[0101] The control unit 104 is specifically further configured to record the time for the air inlet temperature of the dryer to rise from the first preset temperature to the second preset temperature as the temperature rise time. For the specific functions and processes of this control unit 104, refer to step S320.

[0102] The control unit 104 is specifically further configured to, during the process of turning on the heating tube of the washer-dryer and performing temperature increase and decrease processing on the temperature inside the drum of the washer-dryer, if the air inlet temperature of the washer-dryer reaches the second preset temperature, turn off the heating tube; if the air inlet temperature of the washer-dryer drops to the first preset temperature, turn on the heating tube again, and cycle in this way, and record the time when the air inlet temperature of the washer-dryer drops from the second preset temperature to the first preset temperature as the temperature decrease time. For the specific functions and processing of this control unit 104, refer to step S330

[0103] As Figure 7 shown, the drying temperature increase control device of the washer-dryer further includes:

[0104] Step 2: Before turning on the heating tube, obtain the air inlet temperature of the washer-dryer as the temperature of the whole washer-dryer, denoted as the initial temperature T1 for temperature increase. Among them, the initial temperature T1 for temperature increase depends on the actual temperature inside the drum before running to the dehumidification stage.

[0105] Step 3: Turn on the heating tube of the washer-dryer (such as the drying heating tube), and preset the on-off temperature of the drying heating tube, such as preset temperature T2 and preset temperature T3. Preset temperature T2 < preset temperature T3. The preset temperature depends on the parameters of the washer-dryer itself. For example, the preset temperature T2 can be 75°C - 85°C, and the preset temperature T3 can be 100°C - 110°C. Specifically, it needs to be determined according to the overall condition of the washer-dryer (such as the power of the heating tube, the overall heat dissipation system, the temperature resistance of the overall materials, etc.).

[0106] Step 4: After turning on the drying heating tube to heat the inside of the drum, stop heating when the air inlet temperature of the washer-dryer reaches the preset temperature T3. When the air inlet temperature of the washer-dryer reaches the preset temperature T2, turn on the heating tube again. This operation is to cycle the heating tube to maintain the temperature inside the drum.

[0107] Among them, record the temperature increase time t0 required for the air inlet temperature of the washer-dryer to increase from the initial temperature T1 for temperature increase to the preset temperature T2, the temperature increase time t4 required for the air inlet temperature of the washer-dryer to increase from the preset temperature T2 to the preset temperature T3, and record the temperature decrease time t5 required for the air inlet temperature of the washer-dryer to decrease from the preset temperature T3 to the preset temperature T2.

[0108] A control device for drying temperature rise of a washer-dryer provided by the solution of the present invention intermittently heats the clothes in the drum of the washer-dryer, determines whether the temperature in the drum of the washer-dryer reaches the condensation temperature according to the temperature rise and fall of the air inlet temperature of the washer-dryer, and records the initial temperature T1 during temperature rise. The heating tube is turned on for the temperature rise operation, and the time required for the temperature to rise from the initial temperature T1 during temperature rise to the preset temperature T2 and the time required for the temperature to rise from the preset temperature T2 to the preset temperature T3 are recorded. After the temperature after temperature rise reaches the preset temperature T3, the heating tube is turned off, and the time required for the temperature to drop from the preset temperature T3 to the preset temperature T2 is recorded. According to the recorded temperature rise time and temperature drop time, they are compared with the preset temperature rise time and temperature drop time. If the conditions are met, the condensation dehumidification operation is performed; otherwise, the temperature rise and fall operations are repeated, which can improve the drying efficiency. Therefore, the amount of condensed water used is reduced, so water resources are saved, and there is no need to additionally increase the cost of the temperature sensor package.

[0109] In some embodiments, the preset lift time parameter includes: a preset temperature rise time and a preset temperature drop time.

[0110] The control unit 104 determines whether the time has come for the washer-dryer to enter the dehumidification stage from the drying stage according to the temperature rise and fall time and the preset temperature rise and fall time parameter, including:

[0111] The control unit 104 is specifically further configured to determine whether the time has come for the washer-dryer to enter the dehumidification stage from the drying stage according to the temperature rise time and the temperature drop time. Among them, the control unit 104 determines whether the time has come for the washer-dryer to enter the dehumidification stage from the drying stage according to the temperature rise time and the temperature drop time, including: [[ID=AB]] [[ID=AC]]

[0112] The control unit 104 is specifically further configured to determine whether the temperature rise time is less than the preset temperature rise time. For the specific functions and processing of this control unit 104, refer to step S410.

[0113] The control unit 104 is specifically further configured that if the temperature rise time is greater than or equal to the preset temperature rise time, return to continue the temperature rise and fall processing of the temperature in the drum of the washer-dryer, that is, continue to turn on the heating tube of the washer-dryer to perform the temperature rise and fall processing of the temperature in the drum of the washer-dryer, and record the temperature rise and fall time. For the specific functions and processing of this control unit 104, refer to step S420.

[0114] The control unit 104 is specifically further configured that if the temperature rise time is less than the preset temperature rise time, determine whether the temperature drop time is greater than the preset temperature drop time. For the specific functions and processing of this control unit 104, refer to step S430.

[0115] The control unit 104 is specifically further configured to determine that the time has come for the dryer to enter the dehumidification stage from the drying stage if the cooling time is greater than the preset cooling time. For the specific functions and processes of this control unit 104, refer to step S440.

[0116] The control unit 104 is specifically further configured to return to continue the temperature raising and lowering process of the temperature inside the drum of the dryer, that is, to continue to turn on the heating tube of the dryer to perform the temperature raising and lowering process on the temperature inside the drum of the dryer and record the temperature raising and lowering time if the heating time is greater than or equal to the preset heating time, or the cooling time is less than or equal to the preset cooling time. For the specific functions and processes of this control unit 104, refer to step S450.

[0117] As Figure 7 shown, the drying temperature raising control device of the dryer further includes:

[0118] Step 6: Determine whether the heating time t4 is less than the preset heating time t1. If so, execute step 7; if not, return to step 3 to continue the heating and cooling operations.

[0119] Step 7: Determine whether the cooling time t5 is greater than the preset cooling time t2. If so, start to perform the condensation dehumidification operation, that is, enter the dehumidification stage from the drying stage; if not, return to step 3 to continue the heating and cooling operations.

[0120] In steps 6 to 7, compare the heating time t4 with the preset heating time t1. If the heating time t4 is less than the preset heating time t1, then compare the cooling time t5 with the preset cooling time t3. If the cooling time t5 is greater than the preset cooling time t3 at this time, it means that the temperature inside the drum tends to be saturated and dehumidification treatment can be performed; otherwise, it means that the local temperature inside the drum is appropriate, only the temperature of the temperature sensing package meets the requirements of temperature raising and lowering, and the actual load temperature has not reached saturation, so dehumidification operation is not suitable, and the operations in steps 3 and 4 above are performed again. If the heating time t4 is greater than or equal to the preset heating time t1, it means that the actual load temperature has not reached saturation and dehumidification operation is not suitable, and the operations in steps 3 and 4 above are performed again.

[0121] In some embodiments, the preset lifting and lowering time parameter further includes: a preset maximum heating time. For example: in step 4, record the time from when the dryer turns on the heating tube to raise the temperature from the initial heating temperature T1 to the current temperature as the total heating time.

[0122] The heating and cooling time also includes: total heating time. Specifically, perform a weighing process before heating to determine the load level in the drum. Look up the table according to the load level in the drum to determine the preset heating-up time t1, the preset cooling-down time t2, and the preset maximum heating time t3. For the setting of the corresponding preset time, please refer to the following table for details.

[0123]

[0124] The above examples are from the washing and drying machine used in the test. If the overall structure of the washing and drying machine is different, the position of the temperature sensor is different, the flow rate of the condenser tube is different, and the power of the heating tube is different, the preset time will vary slightly. The specific preset time is related to the drying system of the whole washing and drying machine.

[0125] The control unit 104 turns on the heating tube of the washing and drying machine to perform heating and cooling treatment on the temperature inside the drum of the washing and drying machine, and records the heating and cooling time, and also includes:

[0126] The control unit 104 is specifically further configured to record the time when the heating tube is turned on during the process of turning on the heating tube of the washing and drying machine to perform heating and cooling treatment on the temperature inside the drum of the washing and drying machine as the total heating time for heating the air inlet temperature of the washing and drying machine.

[0127] Correspondingly, the control unit 104 determines whether the time has come for the washing and drying machine to enter the dehumidification stage from the drying stage according to the heating and cooling time and the preset heating and cooling time parameters, and also includes:

[0128] The control unit 104 is specifically further configured to determine whether the total heating time is greater than the preset maximum heating duration. For the specific functions and processes of this control unit 104, please also refer to step S <510>.

[0129] The control unit 104 is specifically further configured to determine that the time has come for the washing and drying machine to enter the dehumidification stage from the drying stage if the total heating time is greater than the preset maximum heating duration. For the specific functions and processes of this control unit 104, please also refer to step S <520>.

[0130] The control unit 104 is specifically further configured to return to determine whether the time has come for the washing and drying machine to enter the dehumidification stage from the drying stage according to the heating-up time and the cooling-down time if the total heating time is less than or equal to the preset maximum heating duration. For the specific functions and processes of this control unit 104, please also refer to step S <530>.

[0131] Such as Figure 7As shown in the figure, the drying temperature increase control device of the washing and drying machine further includes: Step 5: Determine whether the temperature increase time t is greater than the preset maximum heating time t3. If so, start the condensation dehumidification operation, that is, enter the dehumidification stage from the drying stage. If not, execute Step 6.

[0132] Among them, the preset maximum heating time t3 is confirmed according to the load level. When the total heating time, that is, the temperature increase time t = the temperature increase time t0 + the temperature increase time t4, meets the preset maximum heating time t3, even if the temperature increase and decrease times do not meet the determination conditions of the above Steps 5 to 7, directly enter the drying process, that is, start the condensation dehumidification operation and enter the dehumidification stage from the drying stage.

[0133] The solution of the present invention intermittently heats the clothes in the drum of the washing and drying machine, and determines whether the temperature in the drum of the washing and drying machine reaches the condensation temperature according to the temperature increase and decrease of the air inlet temperature of the washing and drying machine. When the temperature increases, record the initial temperature T1 of the temperature increase, turn on the heating tube for the temperature increase operation, and record the time required for the temperature to rise to the preset temperature T2 and the time required for the temperature to rise to the preset temperature T3. After the temperature reaches T3, turn off the heating tube and record the time required for the temperature to drop to the preset temperature T2. Furthermore, compare the recorded temperature increase time and temperature decrease time with the preset temperature increase time and preset temperature decrease time: If the conditions are met, perform the condensation dehumidification operation; otherwise, repeat the temperature increase and decrease operations. In this way, by determining whether the temperature in the drum reaches saturation according to the temperature increase and decrease times when the heating tube starts and stops, and performing the dehumidification operation only when saturation is reached, the drying efficiency is improved.

[0134] Since the processing and functions implemented by the device in this embodiment are basically corresponding to the embodiments, principles, and examples of the foregoing method, for the details not described in the description of this embodiment, reference can be made to the relevant descriptions in the foregoing embodiments and will not be elaborated here.

[0135] Adopting the technical solution of the present invention, the clothes in the drum of the washing and drying machine are intermittently heated by turning on the heating tube, and whether the temperature in the drum of the washing and drying machine reaches the condensation temperature is determined according to the temperature increase and decrease times of the air inlet temperature of the washing and drying machine. When it is determined that the temperature in the drum of the washing and drying machine reaches the condensation temperature, turn on the condensation dehumidification. When it is determined that the temperature in the drum of the washing and drying machine does not reach the condensation temperature, continue to turn on the heating tube to intermittently heat the clothes in the drum of the washing and drying machine until the temperature in the drum of the washing and drying machine reaches the condensation temperature and then turn on the condensation dehumidification, realizing the control of drying and dehumidification of the clothes in the drum. By performing the condensation dehumidification operation after the temperature of the clothes in the drum meets the condensation temperature, the drying efficiency can be improved, water resources can be saved, and the cost of an additional temperature sensor does not need to be increased.

[0136] According to an embodiment of the present invention, there is also provided a washing and drying machine corresponding to the control device of the washing and drying machine. The washing and drying machine may include: the control device of the washing and drying machine described above.

[0137] Since the processing and functions implemented by the washing and drying machine in this embodiment are basically corresponding to the embodiments, principles, and examples of the foregoing device, for the details not elaborated in the description of this embodiment, reference may be made to the relevant descriptions in the foregoing embodiments and will not be repeated here.

[0138] By adopting the technical solution of the present invention, the heating tube is turned on to intermittently heat the clothes in the drum of the washing and drying machine, and based on the heating and cooling time of the air inlet temperature of the washing and drying machine, it is determined whether the temperature in the drum of the washing and drying machine reaches the condensation temperature. When it is determined that the temperature in the drum of the washing and drying machine reaches the condensation temperature, condensation dehumidification is turned on, and when it is determined that the temperature in the drum of the washing and drying machine does not reach the condensation temperature, the heating tube is continuously turned on to intermittently heat the clothes in the drum of the washing and drying machine until the temperature in the drum of the washing and drying machine reaches the condensation temperature before turning on condensation dehumidification, so as to realize the control of drying and dehumidification of the clothes in the drum, improve the drying efficiency, save water resources, and do not require additional cost for a temperature temperature sensor.

[0139] According to an embodiment of the present invention, there is also provided a storage medium corresponding to the control method of the washing and drying machine. The storage medium includes a stored program, wherein when the program runs, it controls the device where the storage medium is located to execute the control method of the washing and drying machine described above.

[0140] Since the processing and functions implemented by the storage medium in this embodiment are basically corresponding to the embodiments, principles, and examples of the foregoing method, for the details not elaborated in the description of this embodiment, reference may be made to the relevant descriptions in the foregoing embodiments and will not be repeated here.

[0141] By adopting the technical solution of the present invention, the heating tube is turned on to intermittently heat the clothes in the drum of the washing and drying machine, and based on the heating and cooling time of the air inlet temperature of the washing and drying machine, it is determined whether the temperature in the drum of the washing and drying machine reaches the condensation temperature. When it is determined that the temperature in the drum of the washing and drying machine reaches the condensation temperature, condensation dehumidification is turned on, and when it is determined that the temperature in the drum of the washing and drying machine does not reach the condensation temperature, the heating tube is continuously turned on to intermittently heat the clothes in the drum of the washing and drying machine until the temperature in the drum of the washing and drying machine reaches the condensation temperature before turning on condensation dehumidification, so as to realize the control of drying and dehumidification of the clothes in the drum, accurately control the temperature of the clothes in the drum of the washing and drying machine, and perform condensation dehumidification operation after the temperature of the clothes in the drum meets the condensation temperature, which can improve the drying efficiency.

[0142] In summary, it is easy for those skilled in the art to understand that, on the premise of no conflict, the above-mentioned advantageous ways can be freely combined and superimposed.

[0143] The above are only embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. A control method for a washing and drying machine, characterized in that, Including: When the washer-dryer enters the drying stage, obtain the weight of the clothes to be dried in the washer-dryer, denoted as the weight of the clothes to be dried; Determine a preset temperature rise and fall time parameter according to the weight of the clothes to be dried; the preset temperature rise and fall time parameter is a time parameter for adjusting the temperature inside the drum of the washer-dryer; Turn on the heating tube of the washer-dryer to perform temperature rise and fall treatment on the temperature inside the drum of the washer-dryer, and record the temperature rise and fall time; Determine whether the time has come for the washer-dryer to enter the dehumidification stage from the drying stage according to the temperature rise and fall time and the preset temperature rise and fall time parameter; After determining that the time has come for the washer-dryer to enter the dehumidification stage from the drying stage, control the washer-dryer to enter the dehumidification stage from the drying stage to realize the drying and dehumidification treatment of the clothes to be dried; wherein, according to the heating and cooling time of the air inlet temperature of the washer-dryer, it is determined to turn on the condensation dehumidification when the temperature inside the drum of the washer-dryer reaches the condensation temperature.

2. The control method of the washing and drying machine according to claim 1, characterized in that, Determining a preset temperature rise and fall time parameter according to the weight of the clothes to be dried includes: Determine the current load level of the weight of the clothes to be dried within the set load level range according to the weight of the clothes to be dried; According to the corresponding relationship between the set load level and the set preset time parameter, determine the set preset time parameter corresponding to the set load level that is the same as the current load level in the corresponding relationship as the current preset time parameter corresponding to the current load level; use this current preset time parameter as the preset temperature rise and fall time parameter.

3. The control method of the washing and drying machine according to claim 1 or 2, characterized in that, The temperature rise and fall time includes: the temperature rise time and the temperature fall time; Turn on the heating tube of the washer-dryer to perform temperature rise and fall treatment on the temperature inside the drum of the washer-dryer, and record the temperature rise and fall time, including: Turn on the heating tube of the washer-dryer to perform temperature rise and fall treatment on the temperature inside the drum of the washer-dryer, so that the air inlet temperature of the washer-dryer rises from the initial temperature rise temperature to the first preset temperature, and then rises from the first preset temperature to the second preset temperature; Record the time when the air inlet temperature of the washer-dryer rises from the first preset temperature to the second preset temperature as the temperature rise time; During the process of turning on the heating tube of the washer-dryer to perform temperature rise and fall treatment on the temperature inside the drum of the washer-dryer, if the air inlet temperature of the washer-dryer reaches the second preset temperature, turn off the heating tube; if the air inlet temperature of the washer-dryer drops to the first preset temperature, turn on the heating tube again, and so on in a cycle, and record the time when the air inlet temperature of the washer-dryer drops from the second preset temperature to the first preset temperature as the temperature fall time.

4. The control method of the washing and drying machine according to claim 3, characterized in that, The preset temperature rise and fall time parameter includes: a preset temperature rise time and a preset temperature fall time; Determining whether the time has come for the washer-dryer to enter the dehumidification stage from the drying stage according to the temperature rise and fall time and the preset temperature rise and fall time parameter includes: Determine whether the time has come for the washer-dryer to enter the dehumidification stage from the drying stage according to the temperature rise time and the temperature fall time; Wherein, Determine whether the time for the dryer to enter the dehumidification stage from the drying stage has arrived according to the heating-up time and the cooling-down time, including: Determine whether the heating-up time is less than the preset heating-up time; If the heating-up time is greater than or equal to the preset heating-up time, return to continue the temperature raising and lowering process for the temperature inside the drum of the dryer; If the heating-up time is less than the preset heating-up time, determine whether the cooling-down time is greater than the preset cooling-down time; If the cooling-down time is greater than the preset cooling-down time, determine that the time for the dryer to enter the dehumidification stage from the drying stage has arrived; If the heating-up time is greater than or equal to the preset heating-up time, or the cooling-down time is less than or equal to the preset cooling-down time, return to continue the temperature raising and lowering process for the temperature inside the drum of the dryer.

5. The control method of the washing and drying machine according to claim 3, characterized in that, The preset lifting and lowering time parameter further includes: a preset maximum heating time; The lifting and lowering time further includes: the total heating time; Turn on the heating tube of the dryer to perform temperature raising and lowering on the temperature inside the drum of the dryer, and record the lifting and lowering time, further including: During the process of turning on the heating tube of the dryer to perform temperature raising and lowering on the temperature inside the drum of the dryer, record the time when the heating tube is turned on as the total heating time for raising the temperature of the air inlet of the dryer; Correspondingly, determine whether the time for the dryer to enter the dehumidification stage from the drying stage has arrived according to the lifting and lowering time and the preset lifting and lowering time parameter, further including: Determine whether the total heating time is greater than the preset maximum heating duration; If the total heating time is greater than the preset maximum heating duration, determine that the time for the dryer to enter the dehumidification stage from the drying stage has arrived; If the total heating time is less than or equal to the preset maximum heating duration, return to determine whether the time for the dryer to enter the dehumidification stage from the drying stage according to the heating-up time and the cooling-down time.

6. The control method of the washing and drying machine according to claim 4, characterized in that, The preset lifting and lowering time parameter further includes: a preset maximum heating time; The lifting and lowering time further includes: the total heating time; Turn on the heating tube of the dryer to perform temperature raising and lowering on the temperature inside the drum of the dryer, and record the lifting and lowering time, further including: During the process of turning on the heating tube of the dryer to perform temperature raising and lowering on the temperature inside the drum of the dryer, record the time when the heating tube is turned on as the total heating time for raising the temperature of the air inlet of the dryer; Correspondingly, determine whether the time for the dryer to enter the dehumidification stage from the drying stage has arrived according to the lifting and lowering time and the preset lifting and lowering time parameter, further including: Determine whether the total heating time is greater than the preset maximum heating duration; If the total heating time is greater than the preset maximum heating duration, determine that the time for the dryer to enter the dehumidification stage from the drying stage has arrived; If the total heating time is less than or equal to the preset maximum heating duration, return to determine whether it is time for the dryer to enter the dehumidification stage based on the heating-up time and the cooling-down time.

7. A control device for a washing and drying machine, characterized in that, It includes: An acquisition unit configured to, when the dryer enters the drying stage, acquire the weight of the clothes to be dried in the dryer, denoted as the weight of the clothes to be dried; A control unit configured to determine preset heating-up and cooling-down time parameters according to the weight of the clothes to be dried; the preset heating-up and cooling-down time parameters are time parameters for adjusting the temperature inside the drum of the dryer; The control unit is further configured to turn on the heating tube of the dryer, perform heating-up and cooling-down processing on the temperature inside the drum of the dryer, and record the heating-up and cooling-down time; The control unit is further configured to determine whether it is time for the dryer to enter the dehumidification stage of the dryer based on the heating-up and cooling-down time and the preset heating-up and cooling-down time parameters; The control unit is further configured to, after determining that it is time for the dryer to enter the dehumidification stage from the drying stage, control the dryer to enter the dehumidification stage from the drying stage to implement drying and dehumidification processing on the clothes to be dried; wherein, according to the heating-up and cooling-down time of the air inlet temperature of the dryer, it is determined to turn on condensation dehumidification when the temperature inside the dryer drum reaches the condensation temperature.

8. The control device of the washing and drying machine according to claim 7, characterized in that, The control unit determines the preset heating-up and cooling-down time parameters according to the weight of the clothes to be dried, including: Determining the current load level of the weight of the clothes to be dried within the set load level range according to the weight of the clothes to be dried; According to the corresponding relationship between the set load level and the set preset time parameters, determining the set preset time parameter corresponding to the set load level that is the same as the current load level in the corresponding relationship as the current preset time parameter corresponding to the current load level; and taking this current preset time parameter as the preset heating-up and cooling-down time parameter.

9. The control device of the washing and drying machine according to claim 7 or 8, characterized in that, The heating-up and cooling-down time includes: heating-up time and cooling-down time; The control unit turns on the heating tube of the dryer, performs heating-up and cooling-down processing on the temperature inside the drum of the dryer, and records the heating-up and cooling-down time, including: Turning on the heating tube of the dryer, performing heating-up and cooling-down processing on the temperature inside the drum of the dryer, so that the air inlet temperature of the dryer rises from the initial heating-up temperature to the first preset temperature, and then rises from the first preset temperature to the second preset temperature; Recording the time when the air inlet temperature of the dryer rises from the first preset temperature to the second preset temperature as the heating-up time; During the process of turning on the heating tube of the dryer and performing heating-up and cooling-down processing on the temperature inside the drum of the dryer, if the air inlet temperature of the dryer reaches the second preset temperature, turn off the heating tube; if the air inlet temperature of the dryer drops to the first preset temperature, turn on the heating tube again, and cycle in this way, and record the time when the air inlet temperature of the dryer drops from the second preset temperature to the first preset temperature as the cooling-down time.

10. The control device of the washing and drying machine according to claim 9, characterized in that, The preset lifting time parameter includes: a preset heating time and a preset cooling time; The control unit determines whether the time has come for the dryer to enter the dehumidification stage of the dryer according to the heating and cooling time and the preset heating and cooling time parameter, including: Determining whether the time has come for the dryer to enter the dehumidification stage of the dryer according to the heating time and the cooling time; Wherein, The control unit determines whether the time has come for the dryer to enter the dehumidification stage of the dryer according to the heating time and the cooling time, including: Determining whether the heating time is less than the preset heating time; If the heating time is greater than or equal to the preset heating time, return to continue the heating and cooling process of the temperature inside the drum of the dryer; If the heating time is less than the preset heating time, determine whether the cooling time is greater than the preset cooling time; If the cooling time is greater than the preset cooling time, determine that the time has come for the dryer to enter the dehumidification stage from the drying stage; If the heating time is greater than or equal to the preset heating time, or the cooling time is less than or equal to the preset cooling time, return to continue the heating and cooling process of the temperature inside the drum of the dryer.

11. The control device of the washing and drying machine according to claim 9, characterized in that, The preset lifting time parameter further includes: a preset maximum heating time; The heating and cooling time further includes: a total heating time; The control unit turns on the heating tube of the dryer to perform heating and cooling on the temperature inside the drum of the dryer and records the heating and cooling time, further including: During the process of turning on the heating tube of the dryer to perform heating and cooling on the temperature inside the drum of the dryer, record the time when the heating tube is turned on as the total heating time for heating the air inlet temperature of the dryer; Correspondingly, the control unit determines whether the time has come for the dryer to enter the dehumidification stage of the dryer according to the heating and cooling time and the preset heating and cooling time parameter, further including: Determining whether the total heating time is greater than the preset maximum heating duration; If the total heating time is greater than the preset maximum heating duration, determine that the time has come for the dryer to enter the dehumidification stage from the drying stage; If the total heating time is less than or equal to the preset maximum heating duration, return to determine whether the time has come for the dryer to enter the dehumidification stage according to the heating time and the cooling time.

12. The control device of the washing and drying machine according to claim 10, characterized in that, The preset lifting time parameter further includes: a preset maximum heating time; The heating and cooling time further includes: a total heating time; The control unit turns on the heating tube of the dryer to perform heating and cooling on the temperature inside the drum of the dryer and records the heating and cooling time, further including: During the process of turning on the heating tube of the dryer to perform heating and cooling on the temperature inside the drum of the dryer, record the time when the heating tube is turned on as the total heating time for heating the air inlet temperature of the dryer; Accordingly, the control unit determines whether the time has come for the dryer to enter the dehumidification stage from the drying stage according to the heating and cooling time and the preset heating and cooling time parameters, and further includes: Determining whether the total heating time is greater than the preset maximum heating duration; If the total heating time is greater than the preset maximum heating duration, it is determined that the time has come for the dryer to enter the dehumidification stage from the drying stage; If the total heating time is less than or equal to the preset maximum heating duration, return to determine whether the time has come for the dryer to enter the dehumidification stage from the drying stage according to the heating-up time and the cooling-down time.

13. A washing and drying machine, characterized in that, Including: The control device of the dryer according to any one of claims 7 to 12.

14. A storage medium, characterized in that, The storage medium includes a stored program, wherein when the program runs, it controls the device where the storage medium is located to execute the control method of the dryer according to any one of claims 1 to 6.

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