Control method of drying equipment, drying equipment, computer device and readable storage medium

Abstract

The present invention provides a control method for a drying device, a drying device, a computer device and a readable storage medium. The control method for the drying device includes a thermal dehydration program, which includes: in the preheating and heating stage, the inner drum rotates at a first speed for dehydration, and the heating element and the fan are turned on; in the condensation acceleration stage, the heating element and the fan are turned off, the dehumidification component is turned on, and the inner drum rotates faster; in the high-speed dehydration stage, the inner drum continuously rotates at a second speed for a preset time and then enters the inertial dehydration stage, in the high-speed dehydration stage, the dehumidification component is turned off or the dehumidification efficiency is reduced; in the inertial dehydration stage, the inner drum continuously rotates at a gradually decaying speed for dehydration, and the heating element and the fan are turned on; in the thermal dehydration end stage, the dehumidification component is turned on or the dehumidification efficiency is increased. The control method of the drying device can reduce the initial moisture content, improve the drying efficiency, and reduce energy consumption.

Description

Technical Field

[0001] The present invention relates to the field of drying equipment, and in particular to a control method for drying equipment, drying equipment, a computer device and a readable storage medium. Background Art

[0002] With the development of science and technology and the improvement of people's quality of life, people's requirements for washing machines are also increasing. It has been a while since the launch of the washer-dryer, and people are no longer satisfied with the washing and drying efficiency of the current washer-dryer. At present, the drying time of most washer-dryers on the market is too long. The drying time for medium and small loads is already quite close to the natural air drying time, which limits the demand for washer-dryers.

[0003] Just like natural air drying, for wet loads, the lower the moisture content of the load, the faster it dries. However, given the current structure of washing machines and their safety for home use, the spin speed of washing machines can no longer be significantly increased, which means that it is impossible to significantly reduce the initial moisture content of drying and thus shorten the drying time. Summary of the invention

[0004] The first object of the present invention is to provide a control method for drying equipment which can reduce initial moisture content, improve drying efficiency and reduce energy consumption.

[0005] The second object of the present invention is to provide a drying device for realizing the above control method.

[0006] A third object of the present invention is to provide a computer device for implementing the control method of the above drying equipment.

[0007] A fourth object of the present invention is to provide a readable storage medium for implementing the control method of the above drying equipment.

[0008] To achieve the above-mentioned purpose, the present invention provides a control method for a drying device, the drying device comprising an inner drum, a drying air duct, a heating element, a fan and a dehumidification component, the drying air duct and the inner drum are connected end to end to form an air circulation channel, the fan and the heating element are both located in the drying air duct, and along the air flow direction in the air circulation channel, the dehumidification component is located upstream of the heating element; the control method comprises: before entering the drying program, first entering the thermal dehydration program, the thermal dehydration program comprises: entering the preheating and heating stage, the inner drum rotates at a first speed for dehydration, and the heating element and the fan are turned on; when the temperature at the air outlet end of the drying air duct reaches a first preset temperature, or the air inlet end of the drying air duct When the temperature at the end reaches the second preset temperature, the condensation acceleration stage begins, the heating element and the fan are turned off, the dehumidification component is turned on, and the inner drum rotates faster; when the inner drum is accelerated to the second speed, the high-speed dehydration stage begins, the inner drum rotates continuously at the second speed for a preset time and then enters the inertial dehydration stage, in which the dehumidification component is turned off or the dehumidification efficiency is reduced; in the inertial dehydration stage, the inner drum continues to rotate for dehydration at a gradually decaying speed, and the heating element and the fan are turned on; when the speed of the inner drum is decelerated to the third speed, the thermal dehydration end stage begins, the dehumidification component is turned on or the dehumidification efficiency is increased until the temperature at the air inlet end of the drying air duct reaches the third preset temperature.

[0009] As can be seen from the above scheme, by setting a hot dehydration program before the drying program, and dividing the hot dehydration program into five stages: preheating and heating stage, condensation acceleration stage, high-speed dehydration stage, inertial dehydration stage and hot dehydration end stage, the clothes can have a lower initial moisture content before entering the drying program to improve the drying efficiency. In the preheating and heating stage, the temperature of the load such as clothes in the inner drum is increased by the operation of the heating element and the fan, so that the load is evenly heated, and a part of the water is evaporated to become hot and humid air. In the condensation acceleration stage, the dehumidification component working at a lower frequency can exchange heat and condense with the hot and humid air in the preheating and heating stage. During the accelerated rotation of the inner drum, the load is attached to the drum, the heating effect is poor and the power is high, so the air electric heating and the fan stop working in the condensation acceleration stage to reduce energy consumption. In the high-speed dehydration stage, the inner drum continues to rotate at a high speed to dehydrate, and the dehumidification component is turned off or the dehumidification efficiency is reduced. At this time, the condensation efficiency is low and it is ensured that the condensed water will not repeatedly wet the load due to the high-speed rotation of the inner drum. In the inertial dehydration stage, the inner drum continues to rotate and dehydrate at a decaying speed due to inertia. At this time, the heating element and the fan work to send hot air to the inner drum. The hot air is conducive to the load falling from the drum wall after high-speed dehydration. At the end of the thermal dehydration stage, the dehumidification component is turned on or the dehumidification efficiency is improved. The inner drum keeps shaking and rotating rhythmically to further heat exchange and condense the hot and humid air in the drum.

[0010] The drying device of the present invention can improve its dehydration performance by cooperating with the heating element, the fan, the dehumidification component and the inner drum without changing its structure, so that the clothes have a lower moisture content before drying, thereby directly shortening the drying time, improving the drying efficiency and reducing energy consumption. The change of the inner drum state during the thermal dehydration process makes it easier for the drum to reach the state with the highest drying efficiency during the drying process, thereby further improving the drying efficiency and shortening the drying time.

[0011] A preferred solution is that the dehumidification component includes a condensation valve; in the condensation acceleration stage, the condensation valve allows water to enter at a first opening time ratio; in the high-speed dehydration stage, the condensation valve is closed or allows water to enter at a second opening time ratio; in the thermal dehydration end stage, the condensation valve allows water to enter at a third opening time ratio, the first opening time ratio is greater than the second opening time ratio, and the third opening time ratio is greater than the second opening time ratio.

[0012] A further solution is that the first opening time accounts for 40% to 60%, the second opening time accounts for 20% to 30%, and the third opening time accounts for 65% to 75%.

[0013] It can be seen from this that the hot and humid air is condensed and dehumidified by condensed water, and the dehumidification efficiency is guaranteed by adjusting the opening time ratio of the condensation valve, while also preventing the clothes from being repeatedly wetted by condensed water.

[0014] A preferred solution is that the third speed is lower than the first speed.

[0015] It can be seen that at the end of the thermal dehydration stage, the inner drum has a relatively low rotation speed, thereby ensuring that the inner drum can maintain a rhythmic shaking rotation.

[0016] A preferred solution is that the first preset temperature is in the range of 90°C to 110°C.

[0017] A preferred solution is that the second preset temperature is in the range of 50°C to 70°C.

[0018] A preferred solution is that the preset time is in the range of 1 minute to 3 minutes.

[0019] A preferred solution is that the control method includes determining whether to perform subsequent drying after the washing program is completed. If so, entering a hot dehydration program, and entering a drying program after the hot dehydration program is completed. If not, entering a conventional dehydration program.

[0020] To achieve the above second objective, the present invention provides a drying device, the drying device comprising a processor, and the processor is used to implement the above control method of the drying device when executing a program stored in a memory.

[0021] In order to achieve the third objective, the present invention provides a computer device, which includes a processor, and the processor is used to implement the control method of the drying device when executing a program stored in a memory.

[0022] In order to achieve the fourth objective, the present invention provides a readable storage medium having a program stored thereon, and when the program is executed by a processor, the control method of the drying device is implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a flow chart of an embodiment of a control method for drying equipment of the present invention.

[0024] The present invention is further described below in conjunction with the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0025] Drying equipment and control method thereof embodiment:

[0026] The drying equipment in this embodiment is a washer-dryer, which includes an inner drum, a drying air duct, a heating element, a fan and a dehumidification component. The drying air duct is connected end to end with the inner drum to form an air circulation channel. The fan and the heating element are both located in the drying air duct. Along the air flow direction in the air circulation channel, the dehumidification component is located upstream of the heating element.

[0027] See also Figure 1 The control method of the drying device includes: after the washing program is finished, it is determined whether to dry the clothes subsequently. If so, a hot dehydration program is entered. After the hot dehydration program is finished, a drying program is entered. If not, a conventional dehydration program is entered. The conventional dehydration program refers to an existing dehydration program that only achieves dehydration by high-speed rotation of the inner drum. The hot dehydration program refers to a dehydration program that delivers hot air flow to the inner drum during the dehydration process of the inner drum to improve the dehydration efficiency, and specifically includes the following steps.

[0028] The thermal dehydration program includes: entering the preheating and heating stage S1, the inner drum rotates at a first speed V1 for dehydration, and the heating element and the fan are turned on; when the temperature of the air outlet of the drying air duct reaches the first preset temperature T1, or the temperature of the air inlet of the drying air duct reaches the second preset temperature T2, entering the condensation acceleration stage S2, the heating element and the fan are turned off, the dehumidification component is turned on, and the inner drum is accelerated; when the inner drum is accelerated to the second speed, entering the high-speed dehydration stage S3, the inner drum continuously rotates at the second speed V2 for a preset time t and then enters the inertial dehydration stage S4, in the high-speed dehydration stage, the dehumidification component is turned off or the dehumidification efficiency is reduced; in the inertial dehydration stage S4, the inner drum continuously rotates at a gradually decaying speed for dehydration, and the heating element and the fan are turned on; when the speed of the inner drum is decelerated to the third speed V3, entering the thermal dehydration end stage S5, the dehumidification component is turned on or the dehumidification efficiency is increased, and the inner drum keeps rotating rhythmically until the temperature of the air inlet of the drying air duct reaches the third preset temperature, and the thermal dehydration program ends. Among them, the third speed V3 is less than the first speed V1 and less than the second speed V2, the first preset temperature is in the range of 90°C to 110°C, the second preset temperature is in the range of 50°C to 70°C, and the preset time t is in the range of 1 minute to 3 minutes.

[0029] The dehumidification component includes a condensation valve. In the condensation acceleration stage, the condensation valve is filled with water at a first opening time ratio of X1; in the high-speed dehydration stage, the condensation valve is closed or filled with water at a second opening time ratio of X2; in the end stage of thermal dehydration, the condensation valve is filled with water at a third opening time ratio of X3. The first opening time ratio is greater than the second opening time ratio, and the third opening time ratio is greater than the second opening time ratio. Each opening time ratio refers to the proportion of the time when the condensation valve is opened and closed at a certain frequency in a cycle when the condensation valve is opened and closed. Optionally, the first opening time ratio is in the range of 40% to 60%, the second opening time ratio is in the range of 20% to 30%, and the third opening time ratio is in the range of 65% to 75%. In this embodiment, the first opening time ratio X1 is 50%, and the condensation valve is opened for 30s and closed for 30s in a cycle. The second opening time ratio is 25%, and the condensation valve is opened for 15s and closed for 45s in a cycle. The third opening time ratio is 67%, and the condensation valve is opened for 40s and closed for 20s in a cycle.

[0030] In the preheating and heating stage, the temperature of the load such as clothes in the inner drum is increased by the operation of the heating element and the fan, so that the load is evenly heated and part of the water evaporates to become hot and humid air. In the condensation acceleration stage, the dehumidification component working at a lower frequency can exchange heat and condense with the hot and humid air in the preheating and heating stage. During the accelerated rotation of the inner drum, the load sticks to the drum, the heating effect is poor and the power is high, so the air electric heating and the fan stop working in the condensation acceleration stage to reduce energy consumption. In the high-speed dehydration stage, the inner drum continues to rotate at a high speed to dehydrate, and the dehumidification component is turned off or the dehumidification efficiency is reduced. At this time, the condensation efficiency is low and it is ensured that the condensed water will not repeatedly wet the load due to the high-speed rotation of the inner drum. In the inertial dehydration stage, the inner drum continues to rotate and dehydrate at a decaying speed due to inertia. At this time, the heating element and the fan work to send hot air to the inner drum. At this time, the hot air is sent to facilitate the load to fall from the drum wall after high-speed dehydration. At the end of the thermal dehydration stage, the dehumidification component is turned on or the dehumidification efficiency is increased, and the inner drum keeps a rhythmic shaking rotation to further exchange heat and condense the hot and humid air in the drum.

[0031] The drying device also includes a processor, and the processor is used to implement the above-mentioned control method of the drying device when executing the program stored in the memory.

[0032] As can be seen from the above, by setting a thermal dehydration program before the drying program, and dividing the thermal dehydration program into five stages: preheating stage, condensation acceleration stage, high-speed dehydration stage, inertial dehydration stage and thermal dehydration end stage, the clothes can have a lower initial moisture content before entering the drying program to improve the drying efficiency. The drying equipment of the present invention can improve its dehydration performance through the cooperation of heating elements, fans, dehumidification components and inner drums without changing its structure, so that the clothes have a lower moisture content before drying, thereby directly shortening the drying time, improving the drying efficiency and reducing energy consumption. The change in the state of the inner drum during the thermal dehydration process makes it easier for the drum to reach the state of highest drying efficiency during the drying process, thereby further improving the drying efficiency and shortening the drying time.

[0033] In addition, the dehumidification component may also include a semiconductor refrigeration sheet, the cold end of which is used to condense the hot and humid air in the inner drum, and the dehumidification efficiency may be adjusted by adjusting the magnitude of the current passing through the semiconductor refrigeration sheet. The values ​​of each on-off frequency may be adjusted according to actual needs, and the magnitudes of the first preset temperature and the second preset temperature may also be changed as needed. The drying device may also be a dryer having only dehydration and drying functions. The above changes can also achieve the purpose of the present invention.

[0034] Computer device embodiment:

[0035] The computer device of the present invention is a controller inside the drying device, including a processor and a memory, such as a single chip microcomputer including a central processing unit, etc. Moreover, the processor is used to implement the steps of the control method of the drying device when executing the computer program stored in the memory.

[0036] For example, a computer program may be divided into one or more modules, one or more modules are stored in a memory and executed by a processor to complete each module of the present invention. One or more modules may be a series of computer program instruction segments capable of completing a specific function, and the instruction segments are used to describe the execution process of the computer program in a terminal device.

[0037] The processor referred to in the present invention may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc. The processor is the control center of the electrical appliance, and uses various interfaces and lines to connect various parts of the entire electrical appliance.

[0038] The memory can be used to store computer programs and / or modules. The processor realizes various functions of the appliance by running or executing the computer programs and / or modules stored in the memory, and calling the data stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the appliance (such as audio data, a phone book, etc.), etc. In addition, the memory can include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0039] Readable storage medium embodiment:

[0040] If the computer program stored in the memory of the washing machine is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present invention implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing related hardware through a computer program. The computer program can be stored in a readable storage medium. When the computer program is executed by a processor, it can implement each step of the control method of the above-mentioned drying device.

[0041] Among them, the computer program includes computer program code, which can be in source code form, object code form, executable file or some intermediate form, etc. Computer readable media may include: any entity or device capable of carrying computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium, etc. It should be noted that the content contained in the computer readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer readable media do not include electric carrier signals and telecommunication signals.

[0042] Finally, it should be emphasized that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A control method for a drying device, wherein the drying device comprises an inner drum, a drying air duct, a heating element, a fan and a dehumidification component, wherein the drying air duct is connected end to end with the inner drum to form an air circulation channel, the fan and the heating element are both located in the drying air duct, and along the air flow direction in the air circulation channel, the dehumidification component is located upstream of the heating element; It is characterized in that The control method comprises: Before entering the drying process, the hot dehydration process is first entered, and the hot dehydration process includes: Entering the preheating stage, the inner drum rotates at a first speed for dehydration, and the heating element and the fan are turned on; When the temperature of the air outlet of the drying air duct reaches the first preset temperature, or the temperature of the air inlet of the drying air duct reaches the second preset temperature, the condensation acceleration stage is entered, the heating element and the fan are turned off, the dehumidification component is turned on, and the inner drum rotates faster; When the inner drum is accelerated to the second speed, it enters the high-speed dehydration stage. After the inner drum rotates continuously at the second speed for a preset time, it enters the inertial dehydration stage. During the high-speed dehydration stage, the dehumidification component is turned off or the dehumidification efficiency is reduced. In the inertial dehydration stage, the inner drum continues to rotate and dehydrate at a gradually decreasing speed, and the heating element and the fan are turned on; When the speed of the inner drum is decelerated to the third speed, the thermal dehydration ends and the dehumidification component is turned on or the dehumidification efficiency is increased until the temperature of the air inlet end of the drying air duct reaches the third preset temperature.

2. The control method of the drying equipment according to claim 1, characterized in that: The dehumidification assembly includes a condensation valve; In the condensation acceleration stage, the condensation valve allows water to flow in at a first opening time ratio; In the high-speed dehydration stage, the condensation valve is closed or water is admitted at a second opening time ratio; At the end stage of the thermal dehydration, the condensing valve allows water to flow in at a third opening time ratio; The first opening duration ratio is greater than the second opening duration ratio, and the third opening duration ratio is greater than the second opening duration ratio; The proportion of each opening time refers to the proportion of the time that the condensing valve is in an open state within a cycle when the condensing valve is opened and closed at a certain frequency.

3. The control method of the drying equipment according to claim 2, characterized in that: The first opening time accounts for a proportion in a range of 40% to 60%, the second opening time accounts for a proportion in a range of 20% to 30%, and the third opening time accounts for a proportion in a range of 65% to 75%.

4. The control method of the drying equipment according to any one of claims 1 to 3, characterized in that: The third speed is lower than the first speed.

5. The control method of the drying equipment according to any one of claims 1 to 3, characterized in that: The first preset temperature is in the range of 90°C to 110°C.

6. The control method of the drying equipment according to any one of claims 1 to 3, characterized in that: The second preset temperature is in the range of 50°C to 70°C.

7. The control method of the drying equipment according to any one of claims 1 to 3, characterized in that: The preset time is in the range of 1 minute to 3 minutes.

8. The control method of the drying equipment according to any one of claims 1 to 3, characterized in that: The control method includes determining whether to perform drying after the washing program is finished, and if so, entering the hot dehydration program, and entering the drying program after the hot dehydration program is finished, and if not, entering the conventional dehydration program.

9. Drying equipment, characterized in that: The drying device comprises a processor, and the processor is used to implement the control method of the drying device according to any one of claims 1 to 8 when executing a program stored in a memory.

10. A computer device, characterized in that: The computer device includes a processor, and the processor is used to implement the control method of the drying device according to any one of claims 1 to 8 when executing a program stored in a memory.

11. A readable storage medium having a program stored thereon, characterized in that: When the program is executed by a processor, the control method of the drying device according to any one of claims 1 to 8 is implemented.

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