CN115491860A

CN115491860A - Control method and device of washing and drying machine, washing and drying machine and storage medium

Info

Publication number: CN115491860A
Application number: CN202211173375.9A
Authority: CN
Inventors: 邵冬; 陈梓雯; 蔡谷奇
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2022-12-20

Abstract

The invention discloses a control method and a control device of a washing and drying machine, the washing and drying machine and a storage medium, wherein the method comprises the following steps: under the condition that the washing and drying machine enters a drying stage, acquiring the weight of clothes to be dried in the washing and drying machine, and recording the weight as the weight of the clothes to be dried; determining a preset temperature rise and fall time parameter according to the weight of clothes to be dried; opening a heating pipe of the washing and drying machine, carrying out temperature rise and fall treatment on the barrel of the washing and drying machine, and recording the temperature rise and fall time; determining whether the time for the washing and drying machine to enter a dehumidification stage from a drying stage is up or not according to the temperature rise and fall time and preset temperature rise and fall time parameters; and after the fact that the time that the washing and drying machine enters the dehumidification phase from the drying phase is determined, controlling the washing and drying machine to enter the dehumidification phase from the drying phase so as to realize drying and dehumidification treatment of clothes to be dried. This scheme, through the time of the intensification and the cooling according to the air intake temperature of washer-dryer, confirm to open the opportunity of condensation dehumidification, be favorable to improving the drying efficiency to clothing in a section of thick bamboo, and save the cost.

Description

Control method and device of washing and drying machine, washing and drying machine and storage medium

Technical Field

The invention belongs to the technical field of washing and drying machines, and particularly relates to a control method and device of a washing and drying machine, the washing and drying machine and a storage medium, in particular to a control method and device for drying and heating of the washing and drying machine, the washing and drying machine and the storage medium.

Background

The washing and drying machine is an essential tool in life of people, and brings great convenience to the life of people. With the development of science and technology, there have been washing and drying machines capable of drying clothes after washing. Due to the convenience of the drying function and the application in humid areas, the washing and drying integrated machine is more and more popular.

In the related scheme, the dehumidification function of the washing and drying machine is mostly carried out in a cold-heat exchange mode, and the method specifically comprises the following steps: high-temperature gas is sent into the washing and drying machine barrel through the heating pipe and the fan to heat clothes, the temperature of the clothes rises and then the water in the clothes is evaporated, the air in the barrel becomes high-temperature high-humidity, and then the condensation water and the high-temperature high-humidity gas are subjected to cold-heat exchange to achieve the condensation and dehumidification effects. The clothes in the drum need to be heated before dehumidification, but most of the washing and drying machines replace the temperature in the drum with a single temperature sensing bulb; in fact, the temperature in the barrel cannot be completely replaced by the temperature of a single temperature sensing bag, if the temperature of the single temperature sensing bag is higher than the temperature in the barrel, the dehumidification efficiency of dehumidification operation directly through condensed water feeding is not high, water resources are wasted, and the cost is increased by using a plurality of temperature sensing bags.

The above is only for the purpose of assisting understanding of the technical solution of the present invention, and does not represent an admission that the above is the prior art.

Disclosure of Invention

The invention aims to provide a control method and a control device of a washing and drying machine, the washing and drying machine and a storage medium, and aims to solve the problems that when the washing and drying machine adopts a single temperature sensing bag temperature to replace the temperature in a cylinder, because the single temperature sensing bag temperature is higher than the temperature in the cylinder, if condensed water is directly fed for dehumidification operation, the dehumidification efficiency is low and water resources are wasted, and when more than two temperature sensing bags are adopted to collect the temperature in the cylinder, the cost of the washing and drying machine is increased, so that the time for starting condensation dehumidification is determined according to the time for heating and cooling the temperature of an air inlet of the washing and drying machine, the drying efficiency of clothes in the cylinder is improved, and the cost is saved.

The invention provides a control method of a washing and drying machine, which comprises the following steps: under the condition that the washing and drying machine enters a drying stage, acquiring the weight of clothes to be dried in the washing and drying machine, and recording the weight 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; the preset temperature rise and fall time parameter is a time parameter for adjusting the temperature in the cylinder of the washing and drying machine; opening a heating pipe of the washing and drying machine, carrying out temperature rise and fall treatment on the temperature in a cylinder of the washing and drying machine, and recording the temperature rise and fall time; determining whether the time for the washing and drying machine to enter the dehumidification stage of the washing and drying machine from the drying stage is up or not according to the temperature rise and fall time and the preset temperature rise and fall time parameter; after the fact that the time that the washing and drying machine enters the dehumidifying stage from the drying stage is determined, the washing and drying machine is controlled to enter the dehumidifying stage from the drying stage, and therefore drying and dehumidifying treatment of the clothes to be dried is achieved.

In some embodiments, determining a preset temperature rise and fall time parameter according to the weight of the laundry to be dried includes: determining the current load grade of the weight of the clothes to be dried in a set load grade range according to the weight of the clothes to be dried; according to the corresponding relation between the set load grade and the set preset time parameter, determining the set preset time parameter corresponding to the set load grade which is the same as the current load grade in the corresponding relation as the current preset time parameter corresponding to the current load grade; and taking the current preset time parameter as the preset lifting time parameter.

In some embodiments, the ramp time comprises: heating time and cooling time; open the heating pipe of washer-dryer, it is right the temperature goes up and down the temperature processing in the section of thick bamboo of washer-dryer to record the time of going up and down the temperature, include: starting a heating pipe of the washing and drying machine, and carrying out temperature rise and drop treatment on the temperature in a cylinder of the washing and drying machine so as to enable the temperature of an air inlet of the washing and drying machine to rise from the initial temperature rise temperature to a first preset temperature and then rise from the first preset temperature to a second preset temperature; recording the time for raising the temperature of the air inlet of the washing and drying machine from the first preset temperature to the second preset temperature as the temperature-raising time; in the process of opening the heating pipe of the washing and drying machine and carrying out temperature rise and drop treatment on the temperature in the cylinder of the washing and drying machine, if the temperature of the air inlet of the washing and drying machine reaches the second preset temperature, closing the heating pipe; and if the temperature of the air inlet of the washing and drying machine is reduced to the first preset temperature, the heating pipe is restarted to circulate, and the time for reducing the temperature of the air inlet of the washing and drying machine from the second preset temperature to the first preset temperature is recorded as the temperature reduction time.

In some embodiments, the preset lift time parameter comprises: presetting temperature rising time and temperature falling time; determining whether the time for the washing and drying machine to enter the dehumidification stage of the washing and drying machine from the drying stage is up or not according to the temperature rise and fall time and the preset temperature rise and fall time parameter, including: determining whether the time for the washing and drying machine to enter the dehumidification stage of the washing and drying machine from the drying stage is up or not according to the temperature rise time and the temperature drop time; wherein, according to the temperature rise time and the temperature fall time, determining whether the opportunity for the washing and drying machine to enter the dehumidification stage of the washing and drying machine from the drying stage is up or not comprises: determining whether the temperature rise time is less than the preset temperature rise time; if the temperature rise time is greater than or equal to the preset temperature rise time, returning to continue to carry out temperature rise and drop treatment on the temperature in the barrel of the washing and drying machine; if the temperature rise time is less than the preset temperature rise time, determining whether the temperature reduction time is greater than the preset temperature reduction time; if the temperature reduction time is longer than the preset temperature reduction time, determining that the time when the washing and drying machine enters the dehumidification stage from the drying stage is up; and if the temperature rise time is greater than or equal to the preset temperature rise time, or the temperature drop time is less than or equal to the preset temperature drop time, returning to continue to carry out temperature rise and drop treatment on the temperature in the cylinder of the washing and drying machine.

In some embodiments, the preset lift time parameter further comprises: presetting maximum heating time; the temperature rise and fall time further comprises: total heating time; open the heating pipe of washer-dryer, it is right the temperature goes up and down the temperature processing in the section of thick bamboo of washer-dryer to record the time of going up and down the temperature, still include: in the process of opening a heating pipe of the washing and drying machine and heating and cooling the temperature in a cylinder of the washing and drying machine, recording the opening time of the heating pipe as the total heating time for heating the temperature of an air inlet of the washing and drying machine; correspondingly, determining whether the time for the washing and drying machine to enter the dehumidification stage of the washing and drying machine from the drying stage is up or not according to the temperature rise and drop time and the preset temperature rise and drop time parameter, and further comprising: determining whether the total heating time is greater than the preset maximum heating time period; if the total heating time is longer than the preset maximum heating time, determining that the time when the washing and drying machine enters the dehumidification stage from the drying stage is up; and if the total heating time is less than or equal to the preset maximum heating time, returning to determine whether the time for the washing and drying machine to enter the dehumidifying stage from the drying stage is up or not according to the temperature rising time and the temperature lowering time.

In accordance with the above method, another aspect of the present invention provides a control device for a washing and drying machine, comprising: the acquiring unit is configured to acquire the weight of the clothes to be dried in the washing and drying machine under the condition that the washing and drying machine enters a drying stage, and the weight is recorded 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 in the cylinder of the washing and drying machine; the control unit is also configured to open a heating pipe of the washing and drying machine, perform temperature rise and fall processing on the temperature in the barrel of the washing and drying machine, and record temperature rise and fall time; the control unit is further configured to determine whether the time for the washing and drying machine to enter the dehumidification phase of the washing and drying machine from the drying phase is up or not according to the temperature rise and fall time and the preset temperature rise and fall time parameter; the control unit is further configured to control the washing and drying machine to enter the dehumidifying phase from the drying phase after determining that the time for the washing and drying machine to enter the dehumidifying phase from the drying phase has arrived, so as to realize the drying and dehumidifying treatment on the clothes to be dried.

In some embodiments, the control unit, determining a preset temperature rise and fall time parameter according to the weight of the laundry to be dried, includes: determining the current load grade of the weight of the clothes to be dried in a set load grade range according to the weight of the clothes to be dried; according to the corresponding relation between the set load grade and the set preset time parameter, determining the set preset time parameter corresponding to the set load grade which is the same as the current load grade in the corresponding relation as the current preset time parameter corresponding to the current load grade; and taking the current preset time parameter as the preset lifting time parameter.

In some embodiments, the ramp time comprises: heating time and cooling time; the control unit opens the heating pipe of washing and drying machine, and is right the temperature goes up and down to handle in the section of thick bamboo of washing and drying machine to record the time of going up and down to the temperature, include: opening a heating pipe of the washing and drying machine, and carrying out temperature rise and drop treatment on the temperature in a cylinder of the washing and drying machine so as to enable the temperature of an air inlet of the washing and drying machine to rise from an initial temperature to a first preset temperature, and then rise from the first preset temperature to a second preset temperature; recording the time for raising the temperature of the air inlet of the washing and drying machine from the first preset temperature to the second preset temperature as the temperature-raising time; in the process of opening the heating pipe of the washing and drying machine and carrying out temperature rise and drop treatment on the temperature in the cylinder of the washing and drying machine, if the temperature of the air inlet of the washing and drying machine reaches the second preset temperature, closing the heating pipe; and if the temperature of the air inlet of the washing and drying machine is reduced to the first preset temperature, the heating pipe is restarted to circulate, and the time for reducing the temperature of the air inlet of the washing and drying machine from the second preset temperature to the first preset temperature is recorded and used as the cooling time.

In some embodiments, the preset lift time parameter comprises: presetting temperature rising time and temperature falling time; the control unit determines whether the time for the washing and drying machine to enter the dehumidification stage of the washing and drying machine from the drying stage is up or not according to the temperature rise and fall time and the preset temperature rise and fall time parameter, and the method comprises the following steps: determining whether the time for the washing and drying machine to enter the dehumidification stage of the washing and drying machine from the drying stage is up or not according to the temperature rise time and the temperature drop time; wherein, the control unit determines whether the opportunity that the washing and drying machine enters the dehumidifying stage of the washing and drying machine from the drying stage has arrived according to the temperature rise time and the temperature fall time, and the control unit comprises: determining whether the temperature rise time is less than the preset temperature rise time; if the temperature rise time is greater than or equal to the preset temperature rise time, returning to continue to carry out temperature rise and drop treatment on the temperature in the barrel of the washing and drying machine; if the temperature rise time is less than the preset temperature rise time, determining whether the temperature reduction time is greater than the preset temperature reduction time; if the temperature reduction time is longer than the preset temperature reduction time, determining that the time when the washing and drying machine enters the dehumidification stage from the drying stage is up; and if the temperature rise time is greater than or equal to the preset temperature rise time, or the temperature reduction time is less than or equal to the preset temperature reduction time, returning to continue to carry out temperature rise and fall treatment on the temperature in the barrel of the washing and drying machine.

In some embodiments, the preset lift time parameter further comprises: presetting maximum heating time; the temperature rise and fall time further comprises: total heating time; the control unit opens the heating pipe of washing and drying machine, and is right the temperature goes up and down the temperature and handles in the section of thick bamboo of washing and drying machine to record the time of going up and down the temperature, still include: in the process of starting a heating pipe of the washing and drying machine and heating and cooling the temperature in a cylinder of the washing and drying machine, recording the time for starting the heating pipe as the total heating time for heating the temperature of an air inlet of the washing and drying machine; correspondingly, the control unit determines whether the time for the washing and drying machine to enter the dehumidification stage of the washing and drying machine from the drying stage is up or not according to the temperature rise and drop time and the preset temperature rise and drop time parameter, and the control unit further includes: determining whether the total heating time is greater than the preset maximum heating time period; if the total heating time is longer than the preset maximum heating time, determining that the time for the washing and drying machine to enter the dehumidification stage from the drying stage is up; and if the total heating time is less than or equal to the preset maximum heating time, returning to determine whether the time for the washing and drying machine to enter the dehumidification stage from the drying stage is up or not according to the temperature rise time and the temperature fall time.

In accordance with another aspect of the present invention, there is provided a washing and drying machine, comprising: the control device of the washing and drying machine is described above.

In accordance with the above method, a further aspect of the present invention provides a storage medium, which includes a stored program, wherein when the program runs, the apparatus on which the storage medium is located is controlled to execute the control method of the washing and drying machine.

Therefore, according to the scheme of the invention, the heating pipe is opened to intermittently heat the clothes in the barrel of the washing and drying machine, whether the temperature in the washing and drying barrel reaches the condensation temperature is determined according to the time of temperature rise and temperature fall of the temperature of the air inlet of the washing and drying machine, so that the condensation and dehumidification are started when the temperature in the washing and drying barrel reaches the condensation temperature, the heating pipe is continuously opened to intermittently heat the clothes in the barrel of the washing and drying machine when the temperature in the washing and drying barrel does not reach the condensation temperature, the condensation and dehumidification are started until the temperature in the washing and drying barrel reaches the condensation temperature, and the control on the drying and dehumidification of the clothes in the barrel is realized, so that the time of starting the condensation and dehumidification is determined according to the time of temperature rise and temperature fall of the air inlet of the washing and drying machine, the drying efficiency of the clothes in the barrel is improved, and the cost is saved.

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

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

FIG. 1 is a schematic flow chart diagram illustrating an embodiment of a method for controlling a washer dryer of the present invention;

FIG. 2 is a schematic flow chart illustrating an embodiment of the method for determining a preset temperature-raising/lowering time parameter according to the weight of the laundry to be dried;

FIG. 3 is a schematic flow chart illustrating an embodiment of opening a heating tube to perform temperature raising and lowering processes on the tube and recording the temperature raising and lowering time in the method of the present invention;

FIG. 4 is a flowchart illustrating an embodiment of determining whether the time for entering the dehumidifying phase from the drying phase has come according to the temperature rising and lowering time in the method of the present invention;

FIG. 5 is a flowchart illustrating an embodiment of determining whether the time for entering the dehumidifying phase from the drying phase has come according to the total heating time in the method of the present invention;

FIG. 6 is a schematic structural diagram of an embodiment of a control device of the washing and drying machine of the present invention;

fig. 7 is a flowchart illustrating an embodiment of a drying temperature rise control method of a washing and drying machine.

The reference numbers in the embodiments of the invention are as follows, in combination with the drawings:

102-an obtaining unit; 104-control unit.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the disclosed embodiments are merely exemplary of the invention, and are not intended to be exhaustive or exhaustive. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Considering that the clothes in the cylinder need to be heated before dehumidification, when the temperature in the cylinder is replaced by the temperature of a single temperature sensing bag of the washing and drying machine, the temperature of the single temperature sensing bag is higher than the temperature in the cylinder, if the condensed water is directly fed for dehumidification operation, the problems of low dehumidification efficiency and water resource waste exist, and when the temperature in the cylinder is collected by more than two temperature sensing bags, the cost of the washing and drying machine is increased. Therefore, the scheme of the invention provides a control method of a washing and drying machine, in particular to a control method of drying and heating of the washing and drying machine, which can accurately control the temperature of an air inlet of the washing and drying machine so as to carry out condensation and dehumidification operations after the temperature of clothes in a cylinder meets the condensation temperature, improve the drying efficiency, save water resources and avoid the need of additionally increasing the cost of a temperature sensing bulb.

According to an embodiment of the present invention, a method for controlling a washer dryer is provided, as shown in fig. 1, which is a schematic flow chart of an embodiment of the method of the present invention. The washing and drying machine has a drying function and a dehumidifying function, and the control method of the washing and drying machine comprises the following steps: step S110 to step S150.

In step S110, when the washing and drying machine enters the drying phase, the weight of the laundry to be dried in the washing and drying machine is obtained and recorded as the weight of the laundry to be dried.

At step S120, a preset temperature raising and lowering time parameter is determined according to the weight of the laundry to be dried. The preset temperature rise and fall time parameter is a time parameter for adjusting the temperature in the cylinder of the washing and drying machine.

In some embodiments, a specific process of determining a preset temperature rise and fall time parameter according to the weight of the laundry to be dried in step S120 is described in the following exemplary description.

Referring to fig. 2, a specific process of determining the preset temperature increase/decrease time parameter according to the weight of the laundry to be dried in step S120 is further described, which includes: step S210 to step S220.

Step S210, determining the current load grade of the weight of the clothes to be dried in a set load grade range according to the weight of the clothes to be dried.

Step S220, according to the corresponding relationship between the set load grade and the set preset time parameter, determining the set preset time parameter corresponding to the set load grade in the corresponding relationship, which is the same as the current load grade, as the current preset time parameter corresponding to the current load grade. And taking the current preset time parameter as the preset lifting time parameter.

Specifically, fig. 7 is a flowchart illustrating an embodiment of a drying temperature rise control method of a washing and drying machine. As shown in fig. 7, the drying temperature rise control method of the washing and drying machine includes:

step 1, after the washing stage of the washing and drying machine is finished, the drying stage is started, and the clothes in the washing and drying machine barrel are dried.

And 2, weighing the clothes to be dried in the drum to obtain the weight of the clothes to be dried. And determining the grade of the weight of the clothes to be dried according to a preset load grade, and recording the grade as the current load grade. And determining current preset time parameters such as preset temperature rising time t1, preset temperature falling time t2 and preset maximum heating time t3 corresponding to the current load grade according to the current load grade.

In step S130, a heating pipe of the washing and drying machine is opened, the temperature inside the drum of the washing and drying machine is increased and decreased, and the temperature increasing and decreasing time is recorded.

In step S140, it is determined whether the time for the washing and drying machine to enter the dehumidification phase of the washing and drying machine from the drying phase has come according to the temperature rise and drop time and the preset temperature rise and drop time parameter.

At step S150, after determining that the time for the washing and drying machine to enter the dehumidification phase from the drying phase has arrived, controlling the washing and drying machine to enter the dehumidification phase from the drying phase to realize the drying and dehumidification of the laundry to be dried.

According to the control method for drying and heating of the washing and drying machine, provided by the scheme of the invention, clothes in the barrel of the washing and drying machine are heated intermittently, whether the temperature in the washing and drying machine barrel reaches the condensation temperature or not is determined according to the temperature rising and cooling conditions of the temperature of the air inlet of the washing and drying machine, so that the local temperature in the washing and drying machine barrel is close to the temperature of the temperature sensing bulb, the temperature in the barrel tends to be stable and balanced, the read temperature in the barrel, namely the temperature sensing bulb temperature, is more accurate, therefore, the temperature of the clothes in the washing and drying machine barrel can be accurately controlled, condensation and dehumidification operations are carried out after the temperature of the clothes in the barrel meets the condensation temperature, the drying efficiency can be improved, the consumption of condensed water is reduced, water resources are saved, and the cost of the temperature sensing bulb does not need to be additionally increased.

In some embodiments, the ramp time comprises: temperature rise time and temperature fall time.

In step S130, the heating pipe of the washing and drying machine is opened, the temperature in the drum of the washing and drying machine is increased and decreased, and the time for increasing and decreasing the temperature is recorded, including:

the following further describes, with reference to a schematic flow chart of an embodiment of the method shown in fig. 3, in which the heating pipe is opened to perform temperature raising and lowering processing on the inside of the cylinder and record temperature raising and lowering time, a specific process of opening the heating pipe to perform temperature raising and lowering processing on the inside of the cylinder and record temperature raising and lowering time in step S130, and includes: step S310 to step S330.

Step S310, a heating pipe of the washing and drying machine is opened, and the temperature in the cylinder of the washing and drying machine is subjected to temperature rise and drop treatment, so that the temperature of an air inlet of the washing and drying machine is raised from the initial temperature rise temperature to a first preset temperature, and then is raised from the first preset temperature to a second preset temperature.

And step S320, recording the time for raising the temperature of the air inlet of the washing and drying machine from the first preset temperature to the second preset temperature as the temperature raising time.

Step S330, in the process of opening the heating pipe of the washing and drying machine and carrying out temperature rise and drop treatment on the temperature in the cylinder of the washing and drying machine, if the temperature of the air inlet of the washing and drying machine reaches the second preset temperature, closing the heating pipe; and if the temperature of the air inlet of the washing and drying machine is reduced to the first preset temperature, the heating pipe is restarted to circulate, and the time for reducing the temperature of the air inlet of the washing and drying machine from the second preset temperature to the first preset temperature is recorded as the temperature reduction time.

As shown in fig. 7, the drying temperature-raising control method of the washing and drying machine further includes:

and 2, before the heating pipe is started, acquiring the temperature of an air inlet of the washing and drying machine as the temperature of the whole washing and drying machine, and recording as a temperature rising initial temperature T1. Wherein the initial temperature T1 of the warming depends on the actual temperature in the drum before the dehumidification phase.

And 3, starting a heating pipe (such as a drying heating pipe, which can be positioned at an air inlet of the washing and drying machine) of the washing and drying machine, and presetting the starting and stopping temperatures of the drying heating pipe, such as a preset temperature T2 and a preset temperature T3. The preset temperature T2 is less than the preset temperature T3. The preset temperature depends on the parameters of the washing and drying machine, for example, the preset temperature T2 may be 75-85 ℃, the preset temperature T3 may be 100-110 ℃, and the preset temperature is determined according to the conditions of the washing and drying machine (such as heating pipe power, complete machine cooling system, complete machine material temperature resistance, etc.).

And 4, after the drying heating pipe is started to heat the inside of the drum, stopping heating when the temperature of the air inlet of the washing and drying machine reaches a preset temperature T3. When the temperature of the air inlet of the washing and drying machine reaches the preset temperature T2, the heating pipe is opened again, and the operation is to circularly open the heating pipe to maintain the temperature in the cylinder.

The method comprises the steps of recording the temperature rise time T0 required by the temperature rise of inlet air of the washing and drying machine from an initial temperature rise T1 to a preset temperature T2, the temperature rise time T4 required by the temperature rise of the inlet air of the washing and drying machine from the preset temperature T2 to a preset temperature T3, and the temperature fall time T5 required by the temperature fall of the inlet air of the washing and drying machine from the preset temperature T3 to the preset temperature T2.

The control method for drying and heating of the washing and drying machine provided by the scheme of the invention intermittently heats clothes in the cylinder of the washing and drying machine, determines whether the temperature in the cylinder of the washing and drying machine reaches the condensation temperature according to the temperature rise and temperature drop conditions of the temperature of the air inlet of the washing and drying machine, and records the initial temperature T1 of temperature rise during temperature rise. And starting the heating pipe to perform a heating action, and recording the time required for the temperature to rise from the initial temperature T1 to the preset temperature T2 and the time required for the temperature to rise from the preset temperature T2 to the preset temperature T3. And closing the heating pipe after the temperature after being heated reaches the preset temperature T3, and recording the time required by the temperature to be reduced from the preset temperature T3 to the preset temperature T2. According to the recorded temperature rise time and temperature fall time, the temperature rise time and the preset temperature rise time are compared, if the temperature rise time and the preset temperature fall time meet the conditions, condensation dehumidification operation is carried out, otherwise, temperature rise and temperature fall operation is repeatedly carried out, drying efficiency can be improved, the consumption of condensed water is reduced, and therefore water resources are saved, and the cost of a temperature sensing bulb does not need to be additionally increased.

In some embodiments, the preset lift time parameter comprises: the preset temperature rise time and the preset temperature drop time.

In step S140, determining whether the time for the washing and drying machine to enter the dehumidification stage of the washing and drying machine from the drying stage is up according to the temperature increase and decrease time and the preset temperature increase and decrease time parameter includes: and determining whether the time for the washing and drying machine to enter the dehumidification stage of the washing and drying machine from the drying stage is up or not according to the temperature rise time and the temperature fall time.

And determining whether the time for the washing and drying machine to enter the dehumidifying stage of the washing and drying machine from the drying stage has arrived according to the temperature rise time and the temperature fall time, which is referred to in the following exemplary description.

With reference to the flowchart of fig. 4 showing an embodiment of determining whether the time from the drying stage to the dehumidifying stage has arrived according to the temperature rise and decrease time in the method of the present invention, a specific process for determining whether the time from the drying stage to the dehumidifying stage has arrived according to the temperature rise and decrease time will be further described, which includes: step S410 to step S430.

Step S410, determining whether the temperature rise time is less than the preset temperature rise time.

And step S420, if the temperature rise time is greater than or equal to the preset temperature rise time, returning to continue to carry out temperature rise and drop treatment on the temperature in the cylinder of the washing and drying machine, namely, continuing to open the heating pipe of the washing and drying machine, carrying out temperature rise and drop treatment on the temperature in the cylinder of the washing and drying machine, and recording the temperature rise and drop time.

Step S430, if the temperature rise time is less than the preset temperature rise time, determining whether the temperature decrease time is greater than the preset temperature decrease time.

Step S440, if the temperature reduction time is greater than the preset temperature reduction time, determining that the time when the washing and drying machine enters the dehumidification stage from the drying stage has come.

And S450, if the temperature rise time is greater than or equal to the preset temperature rise time or the temperature reduction time is less than or equal to the preset temperature reduction time, returning to continue heating and cooling the temperature in the cylinder of the washing and drying machine, namely continuing to open the heating pipe of the washing and drying machine, heating and cooling the temperature in the cylinder of the washing and drying machine, and recording the heating and cooling time.

step 6, judging whether the temperature rise time t4 is less than the preset temperature rise time t1: and if so, executing the step 7, otherwise, returning to the step 3 to continue the temperature rising and reducing operations.

Step 7, judging whether the cooling time t5 is greater than a preset cooling time t2: if yes, the condensation dehumidification operation is started, namely the drying stage enters the dehumidification stage, and if not, the step 3 is returned to continue the temperature rising and reducing operation.

In the steps 6 to 7, the temperature rise time t4 is compared with the preset temperature rise time t1, if the temperature rise time t4 is less than the preset temperature rise time t1, the temperature reduction time t5 is compared with the preset temperature reduction time t3, if the temperature reduction time t5 is greater than the preset temperature reduction time t3, the temperature in the cylinder tends to be saturated, dehumidification can be performed, otherwise, the temperature in the cylinder is proper, only the temperature sensing bag temperature meets the temperature rise and temperature reduction requirement, the actual load temperature does not reach saturation, the dehumidification is not suitable, and the actions of the steps 3 and 4 are performed again. If the temperature rise time t4 is greater than or equal to the preset temperature rise time t1, it is indicated that the actual load temperature does not reach saturation, and the dehumidification operation is not suitable, and the operations of the step 3 and the step 4 are performed again.

In some embodiments, the preset lift time parameter further comprises: the maximum heating time is preset. For example: in step 4, the time for the washing and drying machine to heat up from the heating pipe starting from the initial heating temperature T1 to the current time is recorded as the total heating time.

The temperature rise and fall time further comprises: total heating time. Specifically, weighing is carried out before heating, and the load grade in the barrel is determined. And determining preset temperature rising time t1, preset temperature reducing time t2 and preset maximum heating time t3 according to a table look-up of the load grade in the cylinder. For the setting of the corresponding preset time, see the following table.

For example:

for example, from the washing and drying machine used in the test, if the whole washing and drying machine has different structures, different positions of the temperature sensing bulbs, different flow rates of the condensing pipes and different power of the heating pipes, the preset time is slightly different, and the specific preset time is related to the drying system of the whole washing and drying machine. That is to say, the different structures of the whole washing and drying machine, the different positions of the temperature sensing bags, the different flow rates of the condensing pipes and the different power of the heating pipes can lead to different temperatures in the lower barrel within the same heating time.

In step S130, the heating pipe of the washing and drying machine is opened, the temperature in the drum of the washing and drying machine is increased and decreased, and the time for increasing and decreasing the temperature is recorded, and the method further includes: and recording the opening time of the heating pipe as the total heating time for heating the temperature of the air inlet of the washing and drying machine in the process of opening the heating pipe of the washing and drying machine and heating the temperature in the cylinder of the washing and drying machine.

Correspondingly, in step S140, determining whether the time for the washing and drying machine to enter the dehumidification phase of the washing and drying machine from the drying phase has come according to the temperature rise and drop time and the preset temperature rise and drop time parameter, further comprising: and determining whether the time for entering the dehumidifying stage from the drying stage is up or not according to the total heating time.

With reference to the flow chart of an embodiment of determining whether the time from the drying stage to the dehumidifying stage has arrived according to the total heating time in the method of the present invention shown in fig. 5, a specific process for determining whether the time from the drying stage to the dehumidifying stage has arrived according to the total heating time will be further described, which includes: step S510 to step S530.

Step S510, determining whether the total heating time is greater than the preset maximum heating time period.

Step S520, if the total heating time is longer than the preset maximum heating time, it is determined that the time for the washing and drying machine to enter the dehumidification stage from the drying stage is up.

Step S530, if the total heating time is less than or equal to the preset maximum heating time, returning to determine whether the time for the washing and drying machine to enter the dehumidification phase from the drying phase is up according to the temperature rise time and the temperature fall time.

As shown in fig. 7, the drying temperature-rising control method of the washing and drying machine further includes: step 5, judging whether the temperature rise time t is greater than a preset maximum heating time t3: if yes, the condensation dehumidification operation is started, namely, the drying stage enters the dehumidification stage, otherwise, the step 6 is executed.

And confirming the preset maximum heating time t3 according to the load grade, and when the total heating time, namely the temperature rising time t = the temperature rising time t0+ the temperature rising time t4, meets the preset maximum heating time t3, and even if the temperature rising time and the temperature falling time are judged in the steps 5 to 7, directly entering the drying treatment, namely starting to execute the condensation and dehumidification operation, and entering the dehumidification stage from the drying stage.

According to the scheme, clothes in a barrel of a washing and drying machine are heated intermittently, whether the temperature in the barrel of the washing and drying machine reaches the condensing temperature or not is determined according to the temperature rising and reducing conditions of the temperature of an air inlet of the washing and drying machine, the initial temperature T1 of temperature rising is recorded during temperature rising, a heating pipe is started to carry out temperature rising action, the time required for the temperature rising to the preset temperature T2 and the time required for the temperature rising to the preset temperature T3 are recorded, and the heating pipe is closed after the temperature reaches T3 and the time required for the temperature falling to the preset temperature T2 is recorded. And further, comparing the recorded temperature rise time and temperature fall time with the preset temperature rise time and preset temperature fall time: if the condition is met, carrying out condensation dehumidification operation, otherwise, repeatedly carrying out temperature rise and temperature reduction operation. Therefore, whether the temperature in the drum reaches saturation (namely tends to saturation) is determined according to the heating and cooling time when the heating pipe is started and stopped, and the dehumidification operation is performed when the temperature reaches saturation, so that the drying efficiency is improved. Under the condition that the temperature rise time t4 is smaller than the preset temperature rise time t1, the temperature drop time t5 is compared with the preset temperature drop time t3, and if the temperature drop time t5 is larger than the preset temperature drop time t3, the temperature in the barrel tends to be saturated.

Adopt the technical scheme of this embodiment, carry out intermittent type formula heating to the section of thick bamboo underwear of washing and drying machine through opening the heating pipe, and according to the time of the intensification and the cooling of the air intake temperature of washing and drying machine, confirm whether the temperature reaches the condensation temperature in the washing and drying barrel, open the condensation dehumidification when confirming the temperature reaches the condensation temperature in the washing and drying barrel, and continue to open the heating pipe and carry out intermittent type formula heating to the section of thick bamboo underwear of washing and drying machine when the temperature does not reach the condensation temperature in the washing and drying barrel, just open the condensation dehumidification when the temperature reaches the condensation temperature in the washing and drying barrel, realize the control to the stoving and the dehumidification of a section of thick bamboo underwear, thereby, through the time of intensification and the cooling according to the air intake temperature of washing and drying machine, confirm to open the dehumidification of condensation, be favorable to improving the stoving efficiency to the clothing in the section of thick bamboo, and save cost.

According to an embodiment of the present invention, there is also provided a control apparatus of a washing and drying machine corresponding to the control method of the washing and drying machine. Referring to fig. 6, a schematic diagram of an embodiment of the apparatus of the present invention is shown. The washing and drying machine has a drying function and a dehumidifying function, and the control device of the washing and drying machine comprises: an acquisition unit 102 and a control unit 104.

Wherein, the obtaining unit 102 is configured to obtain the weight of the laundry to be dried in the washing and drying machine, which is recorded as the weight of the laundry to be dried, when the washing and drying machine enters the drying stage. The specific functions and processes of the acquiring unit 102 are referred to in step S110.

A control unit 104 configured to determine a preset temperature rise and fall time parameter according to the weight of the laundry to be dried. The preset temperature rise and fall time parameter is a time parameter for adjusting the temperature in the barrel of the washing and drying machine. The specific function and processing of the control unit 104 are shown in step S120.

In some embodiments, the control unit 104, determining a preset heating and cooling time parameter according to the weight of the laundry to be dried, includes:

the control unit 104 is further configured to determine a current load level of the weight of the laundry to be dried in a set load level range according to the weight of the laundry to be dried. The specific functions and processes of the control unit 104 are also referred to in step S210.

The control unit 104 is further specifically configured to determine, according to a corresponding relationship between a set load level and a set preset time parameter, a set preset time parameter corresponding to a set load level in the corresponding relationship, which is the same as the current load level, as a current preset time parameter corresponding to the current load level. And taking the current preset time parameter as the preset lifting time parameter. The specific functions and processes of the control unit 104 are also referred to in step S220.

Fig. 7 is a schematic flow chart of an embodiment of a drying temperature rise control device of a washing and drying machine. As shown in fig. 7, the drying temperature rise control device of the washing and drying machine includes:

The control unit 104 is further configured to open a heating pipe of the washing and drying machine, perform temperature raising and lowering processing on the temperature in the barrel of the washing and drying machine, and record temperature raising and lowering time. The specific function and processing of the control unit 104 are also referred to in step S130.

The control unit 104 is further configured to determine whether the washing and drying machine has arrived at the time of entering the dehumidification phase of the washing and drying machine from the drying phase according to the temperature rise and drop time and the preset temperature rise and drop time parameter. The specific function and processing of the control unit 104 are also referred to in step S140.

The control unit 104 is further configured to, after determining that the time for the washing and drying machine to enter the dehumidification phase from the drying phase has arrived, control the washing and drying machine to enter the dehumidification phase from the drying phase to implement the drying and dehumidification processes for the laundry to be dried. The specific function and processing of the control unit 104 are also referred to in step S150.

According to the control device for drying and heating of the washing and drying machine, provided by the scheme of the invention, the clothes in the barrel of the washing and drying machine are heated intermittently, whether the temperature in the washing and drying machine barrel reaches the condensation temperature or not is determined according to the temperature rise and temperature drop conditions of the temperature of the air inlet of the washing and drying machine, so that the local temperature in the washing and drying machine barrel is close to the temperature of the temperature sensing bulb, the temperature in the barrel tends to be stable and balanced, the read temperature in the barrel, namely the temperature sensing bulb temperature, is more accurate, therefore, the temperature of the clothes in the washing and drying machine barrel can be accurately controlled, the condensation and dehumidification operations are carried out after the temperature of the clothes in the barrel meets the condensation temperature, the drying efficiency can be improved, the consumption of condensed water is reduced, the water resource is saved, and the cost of the temperature sensing bulb does not need to be additionally increased.

The control unit 104 opens the heating pipe of the washing and drying machine, and heats and cools the temperature in the barrel of the washing and drying machine, and records the time of heating and cooling, including:

the control unit 104 is specifically further configured to open a heating pipe of the washing and drying machine, and perform a temperature increase and decrease process on the temperature inside the barrel of the washing and drying machine, so that the temperature of the air inlet of the washing and drying machine is increased from the initial temperature of temperature increase to a first preset temperature, and then is increased from the first preset temperature to a second preset temperature. The specific functions and processes of the control unit 104 are also referred to in step S310.

The control unit 104 is specifically further configured to record, as the temperature rise time, a 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. The specific functions and processes of the control unit 104 are also referred to in step S320.

The control unit 104 is further specifically configured to, during the process of starting the heating pipe of the washing and drying machine and performing temperature increase and decrease processing on the temperature in the drum of the washing and drying machine, close the heating pipe if the temperature of the air inlet of the washing and drying machine reaches the second preset temperature; and if the temperature of the air inlet of the washing and drying machine is reduced to the first preset temperature, the heating pipe is restarted to circulate, and the time for reducing the temperature of the air inlet of the washing and drying machine from the second preset temperature to the first preset temperature is recorded as the temperature reduction time. The specific functions and processes of the control unit 104 are also referred to in step S330.

As shown in fig. 7, the drying temperature-raising control device of the washing and drying machine further includes:

and 2, before the heating pipe is started, acquiring the temperature of an air inlet of the washing and drying machine as the temperature of the whole washing and drying machine, and recording as a temperature rising initial temperature T1. Wherein the initial temperature T1 of the warming depends on the actual temperature in the drum at the time before the operation to the dehumidification stage.

And 3, starting a heating pipe (such as a drying heating pipe) of the washing and drying machine, and presetting the starting and stopping temperatures of the drying heating pipe, such as a preset temperature T2 and a preset temperature T3. The preset temperature T2 is less than the preset temperature T3. The preset temperature depends on the parameters of the washing and drying machine, for example, the preset temperature T2 may be 75-85 ℃, the preset temperature T3 may be 100-110 ℃, and the preset temperature is determined according to the conditions of the washing and drying machine (such as heating pipe power, complete machine cooling system, complete machine material temperature resistance, etc.).

And 4, after the drying heating pipe is started to heat the interior of the drum, stopping heating when the temperature of the air inlet of the washing and drying machine reaches a preset temperature T3. When the temperature of the air inlet of the washing and drying machine reaches the preset temperature T2, the heating pipe is opened again, and the operation is to circularly open the heating pipe to maintain the temperature in the cylinder.

The method comprises the steps of recording the temperature rise time T0 required by the temperature rise of the inlet air temperature of the washing and drying machine from the initial temperature T1 to the preset temperature T2, the temperature rise time T4 required by the temperature rise of the inlet air temperature of the washing and drying machine from the preset temperature T2 to the preset temperature T3, and the temperature fall time T5 required by the temperature fall of the inlet air temperature of the washing and drying machine from the preset temperature T3 to the preset temperature T2.

The control device for drying and heating of the washing and drying machine, provided by the scheme of the invention, intermittently heats clothes in a cylinder of the washing and drying machine, determines whether the temperature in the cylinder of the washing and drying machine reaches a condensation temperature according to the temperature rise and temperature drop conditions of the temperature of an air inlet of the washing and drying machine, and records the initial temperature T1 of temperature rise during temperature rise. And starting the heating pipe to perform a heating action, and recording the time required for the temperature to rise from the initial temperature T1 to the preset temperature T2 and the time required for the temperature to rise from the preset temperature T2 to the preset temperature T3. And closing the heating pipe after the temperature after being heated reaches the preset temperature T3, and recording the time required by the temperature to be reduced from the preset temperature T3 to the preset temperature T2. According to the recorded temperature rise time and temperature fall time, the temperature rise time and the preset temperature rise time are compared, if the temperature rise time and the preset temperature fall time meet the conditions, condensation dehumidification operation is carried out, otherwise, temperature rise and temperature fall operation is repeatedly carried out, drying efficiency can be improved, the consumption of condensed water is reduced, and therefore water resources are saved, and the cost of a temperature sensing bulb does not need to be additionally increased.

The determining, by the control unit 104, whether the time for the washing and drying machine to enter the dehumidification stage of the washing and drying machine from the drying stage is up according to the temperature increase and decrease time and the preset temperature increase and decrease time parameter includes:

the control unit 104 is specifically further configured to determine whether the time for the washing and drying machine to enter the dehumidification phase of the washing and drying machine from the drying phase is up according to the temperature rise time and the temperature fall time. Wherein, the determining, by the control unit 104, whether the time for the washing and drying machine to enter the dehumidifying stage of the washing and drying machine from the drying stage is up according to the temperature rising time and the temperature falling time includes:

the control unit 104 is specifically further configured to determine whether the temperature rise time is less than the preset temperature rise time. The specific functions and processes of the control unit 104 are also referred to in step S410.

The control unit 104 is specifically configured to, if the temperature rise time is greater than or equal to the preset temperature rise time, return to continue to perform temperature increase and decrease processing on the temperature in the barrel of the washing and drying machine, that is, continue to open the heating pipe of the washing and drying machine, perform temperature increase and decrease processing on the temperature in the barrel of the washing and drying machine, and record the temperature increase and decrease time. The specific function and processing of the control unit 104 are also referred to as step S420.

The control unit 104 is specifically further configured to determine whether the temperature reduction time is greater than the preset temperature reduction time if the temperature reduction time is less than the preset temperature reduction time. The detailed function and processing of the control unit 104 are also referred to in step S430.

The control unit 104 is specifically further configured to determine that the time when the washing and drying machine enters the dehumidification phase from the drying phase has come if the cooling time is greater than the preset cooling time. The specific functions and processes of the control unit 104 are also referred to in step S440.

The control unit 104 is specifically configured to, if the temperature rise time is greater than or equal to the preset temperature rise time, or the temperature fall time is less than or equal to the preset temperature fall time, return to continue to perform the temperature increase and decrease processing on the temperature in the cylinder of the washing and drying machine, that is, continue to open the heating pipe of the washing and drying machine, perform the temperature increase and decrease processing on the temperature in the cylinder of the washing and drying machine, and record the temperature increase and decrease time. The specific functions and processes of the control unit 104 are also referred to in step S450.

In some embodiments, the preset lift time parameter further comprises: the maximum heating time is preset. For example: in step 4, the time for the washing and drying machine to heat up from the heating pipe starting temperature T1 to the current temperature is recorded as the total heating time.

The temperature rise and fall time further comprises: total heating time. Specifically, weighing is performed before heating, and the level of the load in the drum is determined. And determining preset temperature rising time t1, preset temperature reducing time t2 and preset maximum heating time t3 according to a table look-up of the load grade in the cylinder. For the setting of the corresponding preset time, see the following table.

For example:

for example, from the washing and drying machine used in the test, if the whole washing and drying machine has different structures, different positions of the temperature sensing bulbs, different flow rates of the condensing pipes and different power of the heating pipes, the preset time is slightly different, and the specific preset time is related to the drying system of the whole washing and drying machine.

The control unit 104 opens the heating pipe of the washing and drying machine, and it processes the temperature rise and fall in the barrel of the washing and drying machine, and records the time of temperature rise and fall, and it also includes:

the control unit 104 is further specifically configured to record, during the process of starting the heating pipe of the washing and drying machine and performing temperature increase and decrease processing on the temperature in the drum of the washing and drying machine, a time for starting the heating pipe, as a total heating time for increasing the temperature of the air inlet of the washing and drying machine.

Correspondingly, the determining, by the control unit 104, whether the time for the washing and drying machine to enter the dehumidification phase of the washing and drying machine from the drying phase is up according to the temperature increase and decrease time and the preset temperature increase and decrease time parameter further includes:

the control unit 104 is specifically further configured to determine whether the total heating time is greater than the preset maximum heating time period. The specific functions and processes of the control unit 104 are also referred to in step S510.

The control unit 104 is specifically further configured to determine that the time when the washing and drying machine enters the dehumidification phase from the drying phase has come if the total heating time is greater than the preset maximum heating time. The specific functions and processes of the control unit 104 are also referred to in step S520.

The control unit 104 is specifically further configured to, if the total heating time is less than or equal to the preset maximum heating time, return to determine whether the time for the washing and drying machine to enter the dehumidification phase from the drying phase has come according to the temperature rise time and the temperature fall time. The specific functions and processes of the control unit 104 are also referred to in step S530.

As shown in fig. 7, the drying temperature-rising control device of the washing and drying machine further includes: step 5, judging whether the temperature rise time t is greater than a preset maximum heating time t3: if yes, the condensation dehumidification operation is started, namely, the drying stage enters the dehumidification stage, and if not, the step 6 is executed.

According to the scheme, clothes in a barrel of a washing and drying machine are heated intermittently, whether the temperature in the barrel of the washing and drying machine reaches the condensing temperature or not is determined according to the temperature rising and reducing conditions of the temperature of an air inlet of the washing and drying machine, the initial temperature T1 of temperature rising is recorded during temperature rising, a heating pipe is started to carry out temperature rising action, the time required for the temperature rising to the preset temperature T2 and the time required for the temperature rising to the preset temperature T3 are recorded, and the heating pipe is closed after the temperature reaches T3 and the time required for the temperature falling to the preset temperature T2 is recorded. And further, comparing the recorded temperature rise time and temperature fall time with the preset temperature rise time and preset temperature fall time: if the condition is met, carrying out condensation dehumidification operation, otherwise, repeatedly carrying out temperature rise and temperature reduction operation. Therefore, whether the temperature in the drum reaches saturation is determined according to the heating and cooling time when the heating pipe is started and stopped, and the dehumidification operation is performed when the temperature reaches saturation, so that the drying efficiency is improved.

Since the processes and functions implemented by the apparatus of this embodiment substantially correspond to the embodiments, principles and examples of the foregoing method, reference may be made to relevant descriptions in the foregoing embodiments for details that are not described in detail in the description of this embodiment, and further description is not provided herein.

By adopting the technical scheme of the invention, the heating pipe is opened to intermittently heat the clothes in the barrel of the washing and drying machine, whether the temperature in the washing and drying barrel reaches the condensation temperature is determined according to the temperature rise and temperature reduction time of the air inlet temperature of the washing and drying machine, the condensation dehumidification is started when the temperature in the washing and drying barrel reaches the condensation temperature, the heating pipe is continuously opened to intermittently heat the clothes in the barrel of the washing and drying machine when the temperature in the washing and drying barrel does not reach the condensation temperature, the condensation dehumidification is started until the temperature in the washing and drying barrel reaches the condensation temperature, the drying and dehumidification of the clothes in the barrel are controlled, the condensation dehumidification operation is performed after the temperature of the clothes in the barrel meets the condensation temperature, the drying efficiency can be improved, the water resource is saved, and the cost of a temperature sensing bag is not additionally increased.

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

Since the processing and functions of the washing and drying machine of the present embodiment are basically corresponding to the embodiments, principles and examples of the foregoing devices, the description of the present embodiment is not detailed, and reference may be made to the related descriptions in the foregoing embodiments, which are not repeated herein.

By adopting the technical scheme of the invention, the heating pipe is opened to intermittently heat the clothes in the barrel of the washing and drying machine, whether the temperature in the washing and drying barrel reaches the condensation temperature is determined according to the temperature rise and temperature reduction time of the air inlet of the washing and drying machine, so that the condensation and dehumidification are started when the temperature in the washing and drying barrel reaches the condensation temperature, the heating pipe is continuously opened to intermittently heat the clothes in the barrel of the washing and drying machine when the temperature in the washing and drying barrel does not reach the condensation temperature, the condensation and dehumidification are started until the temperature in the washing and drying barrel reaches the condensation temperature, the drying and dehumidification of the clothes in the barrel are controlled, the drying efficiency can be improved, water resources are saved, and the cost of a temperature sensing bag does not need to be additionally increased.

According to an embodiment of the present invention, there is also provided a storage medium corresponding to a control method of a washing and drying machine, the storage medium including a stored program, wherein when the program is executed, an apparatus in which the storage medium is located is controlled to perform the control method of the washing and drying machine described above.

Since the processing and functions implemented by the storage medium of this embodiment substantially correspond to the embodiments, principles and examples of the foregoing method, reference may be made to relevant descriptions in the foregoing embodiments for details that are not described in detail in the description of this embodiment, and further description is not repeated here.

By adopting the technical scheme of the invention, the heating pipe is opened to intermittently heat the clothes in the barrel of the washing and drying machine, whether the temperature in the washing and drying barrel reaches the condensation temperature is determined according to the temperature rise and temperature reduction time of the air inlet of the washing and drying machine, so that the condensation dehumidification is started when the temperature in the washing and drying barrel reaches the condensation temperature, the heating pipe is continuously opened to intermittently heat the clothes in the barrel of the washing and drying machine when the temperature in the washing and drying barrel does not reach the condensation temperature, the condensation dehumidification is started until the temperature in the washing and drying barrel reaches the condensation temperature, the drying and dehumidification of the clothes in the barrel are controlled, the temperature of the clothes in the washing and drying barrel can be accurately controlled, the condensation dehumidification operation is performed after the temperature of the clothes in the barrel meets the condensation temperature, and the drying efficiency can be improved.

In conclusion, it is readily understood by those skilled in the art that the advantageous modes described above can be freely combined and superimposed without conflict.

The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A control method of a washing and drying machine is characterized by comprising the following steps:

under the condition that the washing and drying machine enters a drying stage, acquiring the weight of clothes to be dried in the washing and drying machine, and recording the weight 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; the preset temperature rise and fall time parameter is a time parameter for adjusting the temperature in the cylinder of the washing and drying machine;

opening a heating pipe of the washing and drying machine, carrying out temperature rise and fall treatment on the temperature in a cylinder of the washing and drying machine, and recording the temperature rise and fall time;

determining whether the time for the washing and drying machine to enter the dehumidification stage of the washing and drying machine from the drying stage is up or not according to the temperature rise and fall time and the preset temperature rise and fall time parameter;

after the fact that the time that the washing and drying machine enters the dehumidifying stage from the drying stage is determined, the washing and drying machine is controlled to enter the dehumidifying stage from the drying stage, and therefore drying and dehumidifying treatment of the clothes to be dried is achieved.

2. The control method of the washing and drying machine as claimed in claim 1, wherein determining the preset temperature raising and lowering time parameter according to the weight of the laundry to be dried comprises:

determining the current load grade of the weight of the clothes to be dried in a set load grade range according to the weight of the clothes to be dried;

according to the corresponding relation between the set load grade and the set preset time parameter, determining the set preset time parameter corresponding to the set load grade which is the same as the current load grade in the corresponding relation as the current preset time parameter corresponding to the current load grade; and taking the current preset time parameter as the preset lifting time parameter.

3. The method of claim 1 or 2, wherein the ramp time comprises: heating time and cooling time;

open the heating pipe of washing and drying the machine, it is right the temperature goes up and down to handle in the section of thick bamboo of washing and drying the machine to record the time of rising and falling temperature, include:

starting a heating pipe of the washing and drying machine, and carrying out temperature rise and drop treatment on the temperature in a cylinder of the washing and drying machine so as to enable the temperature of an air inlet of the washing and drying machine to rise from the initial temperature rise temperature to a first preset temperature and then rise from the first preset temperature to a second preset temperature;

recording the time for raising the temperature of the air inlet of the washing and drying machine from the first preset temperature to the second preset temperature as the temperature-raising time;

in the process of opening the heating pipe of the washing and drying machine and carrying out temperature rise and drop treatment on the temperature in the cylinder of the washing and drying machine, if the temperature of the air inlet of the washing and drying machine reaches the second preset temperature, closing the heating pipe; and if the temperature of the air inlet of the washing and drying machine is reduced to the first preset temperature, the heating pipe is restarted to circulate, and the time for reducing the temperature of the air inlet of the washing and drying machine from the second preset temperature to the first preset temperature is recorded as the temperature reduction time.

4. The control method of a washer dryer as claimed in claim 3, characterized in that said preset lift time parameter comprises: presetting temperature rising time and temperature falling time;

determining whether the time for the washing and drying machine to enter the dehumidification stage of the washing and drying machine from the drying stage is up or not according to the temperature rise and fall time and the preset temperature rise and fall time parameter, including:

determining whether the time for the washing and drying machine to enter the dehumidification stage of the washing and drying machine from the drying stage is up or not according to the temperature rise time and the temperature drop time;

wherein, the first and the second end of the pipe are connected with each other,

determining whether the opportunity for the washing and drying machine to enter the dehumidifying stage of the washing and drying machine from the drying stage is reached or not according to the temperature rise time and the temperature fall time, and the method comprises the following steps:

determining whether the temperature rise time is less than the preset temperature rise time;

if the temperature rise time is greater than or equal to the preset temperature rise time, returning to continue to carry out temperature rise and drop treatment on the temperature in the barrel of the washing and drying machine;

if the temperature rise time is less than the preset temperature rise time, determining whether the temperature reduction time is greater than the preset temperature reduction time;

if the temperature reduction time is longer than the preset temperature reduction time, determining that the time when the washing and drying machine enters the dehumidification stage from the drying stage is up;

and if the temperature rise time is greater than or equal to the preset temperature rise time, or the temperature reduction time is less than or equal to the preset temperature reduction time, returning to continue to carry out temperature rise and fall treatment on the temperature in the barrel of the washing and drying machine.

5. The control method of a washer dryer as claimed in claim 3 or 4, characterized in that said preset lift time parameter further comprises: presetting maximum heating time;

the temperature rise and fall time further comprises: total heating time;

open the heating pipe of washer-dryer, it is right the temperature goes up and down the temperature processing in the section of thick bamboo of washer-dryer to record the time of going up and down the temperature, still include:

in the process of starting a heating pipe of the washing and drying machine and heating and cooling the temperature in a cylinder of the washing and drying machine, recording the time for starting the heating pipe as the total heating time for heating the temperature of an air inlet of the washing and drying machine;

correspondingly, determining whether the time for the washing and drying machine to enter the dehumidification stage of the washing and drying machine from the drying stage is up or not according to the temperature rise and drop time and the preset temperature rise and drop time parameter, and further comprising:

determining whether the total heating time is greater than the preset maximum heating time period;

if the total heating time is longer than the preset maximum heating time, determining that the time when the washing and drying machine enters the dehumidification stage from the drying stage is up;

and if the total heating time is less than or equal to the preset maximum heating time, returning to determine whether the time for the washing and drying machine to enter the dehumidification stage from the drying stage is up or not according to the temperature rise time and the temperature fall time.

6. A control device of a washer dryer, comprising:

the acquiring unit is configured to acquire the weight of the clothes to be dried in the washing and drying machine under the condition that the washing and drying machine enters a drying stage, and the weight is recorded as the weight of the clothes to be dried;

the control unit 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 for adjusting the temperature in the cylinder of the washing and drying machine;

the control unit is also configured to open a heating pipe of the washing and drying machine, perform temperature rise and fall processing on the temperature in the barrel of the washing and drying machine, and record temperature rise and fall time;

the control unit is further configured to determine whether the time for the washing and drying machine to enter the dehumidification phase of the washing and drying machine from the drying phase is up or not according to the temperature rise and fall time and the preset temperature rise and fall time parameter;

the control unit is further configured to control the washing and drying machine to enter the dehumidification phase from the drying phase after determining that the machine is started to enter the dehumidification phase from the drying phase, so as to realize drying and dehumidification of the clothes to be dried.

7. The control device of claim 6, wherein the control unit determines the preset temperature-raising and temperature-lowering time parameter according to the weight of the clothes to be dried, and comprises:

8. The control device of claim 6 or 7, wherein the warming and cooling time comprises: heating time and cooling time;

the control unit opens the heating pipe of washing and drying machine, and is right the temperature goes up and down to handle in the section of thick bamboo of washing and drying machine to record the time of going up and down to the temperature, include:

9. The washer-dryer control device as recited in claim 8, wherein said preset lift time parameter comprises: presetting temperature rising time and temperature falling time;

the control unit determines whether the time for the washing and drying machine to enter the dehumidification stage of the washing and drying machine from the drying stage arrives or not according to the temperature rise and drop time and the preset temperature rise and drop time parameter, and the method comprises the following steps:

the control unit determines whether the opportunity for the washing and drying machine to enter the dehumidification stage of the washing and drying machine from the drying stage is reached or not according to the temperature rise time and the temperature fall time, and the control unit comprises:

if the temperature reduction time is longer than the preset temperature reduction time, determining that the time for the washing and drying machine to enter the dehumidification stage from the drying stage has come;

10. The control device of claim 6 or 9, wherein the preset lift time parameter further comprises: presetting maximum heating time;

the temperature rise and fall time further comprises: total heating time;

the control unit opens the heating pipe of washing and drying machine, and is right the temperature goes up and down the temperature and handles in the section of thick bamboo of washing and drying machine to record the time of going up and down the temperature, still include:

correspondingly, the control unit determines whether the time for the washing and drying machine to enter the dehumidification stage of the washing and drying machine from the drying stage is up or not according to the temperature rise and drop time and the preset temperature rise and drop time parameter, and the control unit further includes:

11. A washer dryer, comprising: control device of a washer dryer as claimed in any of the claims 6 to 10.

12. A storage medium, characterized in that the storage medium comprises a stored program, wherein the program, when executed, controls an apparatus in which the storage medium is located to perform the control method of the washer dryer according to any one of claims 1 to 5.