WO2020063310A1

WO2020063310A1 - Method for controlling laundry treatment device and laundry treatment device

Info

Publication number: WO2020063310A1
Application number: PCT/CN2019/104899
Authority: WO
Inventors: 李文伟; 吴军; 潘光辉; 王光锋; 王育宝; 赵志龙
Original assignee: 青岛海尔滚筒洗衣机有限公司
Priority date: 2018-09-29
Filing date: 2019-09-09
Publication date: 2020-04-02
Also published as: CN110965296B; CN110965296A; JP2022509727A; JP7198917B2

Abstract

The present invention relates to the technical field of laundry treatment devices, and disclosed thereby is a method for controlling a laundry treatment device. According to the method for controlling the laundry treatment device, the laundry treatment device comprises a plurality of drying zones for clothing which share the same heat exchange system, and the plurality of drying zones start drying at the same time; initial power required by each drying zone is calculated according to ambient temperature and load, and heat is supplied to each drying zone in a certain proportion according to the initial power. The method for controlling the laundry treatment device according to the present invention is applicable to a state where multiple drying zones are running at the same time, which makes full use of the heat provided by the heat exchange system, thereby improving the heat utilization rate, shortening the drying time, improving the drying efficiency and saving energy. Also provided by the present invention is the laundry treatment device which uses the control method.

Description

Control method of clothes processing device and clothes processing device

Technical field

The invention belongs to the technical field of a laundry treatment device, and in particular, relates to a control method of a laundry treatment device and a laundry treatment device.

Background technique

At present, there are more and more multi-cylinder laundry processing devices, and various combinations are becoming more and more novel. However, for clothing processing devices with a multi-cylinder simultaneous drying function, the existing drying control methods are difficult to make full use of the heat of the heat exchange system. 2. High energy consumption and low drying effect.

Therefore, a drying control method is needed to adapt to the function of simultaneous drying of multiple cylinders, improve the heat utilization rate, shorten the drying time, and improve the drying efficiency.

In view of this, the present invention is proposed.

Summary of the Invention

The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art, and provide a control method and a clothes processing device for a clothes processing device.

To solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

A method for controlling a laundry processing device. The laundry processing device includes a plurality of drying areas for laundry that share a same heat exchange system. The plurality of drying areas start drying at the same time, and each drying area is calculated according to the ambient temperature and load. The required initial power provides heat to each drying area in a certain proportion according to the initial power.

As an embodiment of the present invention, in the method for controlling a laundry processing device, a laundry drying area of the laundry processing device is provided with a weighing structure for determining the size of the load, and each drying area is calculated according to the ambient temperature and the weighing value. The required power, according to the obtained power, adjusts the heat provided to each drying zone in a certain proportion.

As an embodiment of the present invention, in the method for controlling a laundry processing apparatus, the laundry processing apparatus is provided with a power database corresponding to the ambient temperature and the weighing value, and the corresponding relationship between the power and the ambient temperature and the weighing value is : The power is P, the weighing value of the drying area is G, and the power is P = K _i * G + B _j , where K _i and B _j are constants corresponding to the ambient temperature, and K _i and B under different ambient temperatures The value of _j is different.

Preferably, for the same load, the ambient temperature increases and the values of K _i and B _j become smaller.

As an embodiment of the present invention, in the method for controlling a laundry processing apparatus, multiple laundry drying zones of the laundry processing apparatus share the same air duct, and the air outlet of the air duct is provided with a plurality of laundry drying zones. The air inlets are connected to the openings respectively, and a drivable valve with a controlled opening degree is provided at the opening. The opening degree of the draught valve is controlled according to the initial power required for each laundry drying area to adjust the amount of hot air entering each drying area.

As an embodiment of the present invention, in the method for controlling a laundry processing apparatus, the laundry processing apparatus includes a first drying zone and a second drying zone, and the weighing value of the first drying zone is G1, and the second The weighing value of the drying zone is G2, the correction coefficient of the first drying zone is M1, and the correction coefficient of the second drying zone is M2, which corresponds to the simultaneous drying of the first drying zone and the second drying zone. The reference opening degree of the air divider valve is C, and the initial opening degree of the air divider valve is D, D = (M1 * G1 / M2 * G2) * C, where C is the drying efficiency under the same load obtained from experiments. Opening value of the diverter valve at the highest.

As an embodiment of the present invention, in the method for controlling a laundry processing apparatus, the opening degree of the air distribution valve is adjusted according to the temperature of the first drying area and the second drying area, and the opening degree of the air distribution valve is equal to the first The correspondence between the temperatures of the drying zone and the second drying zone is preset in the control unit of the laundry processing apparatus.

As an embodiment of the present invention, in the method for controlling a laundry processing device, the opening degree of the air divider valve is adjusted according to the temperature of the air outlet of the first drying zone and the second drying zone. The rising speed is faster than that of the other drying area, and the opening of the air divider valve toward the drying area with rapid heating becomes smaller.

Preferably, the temperature of the air outlet of the first drying zone is T1, the temperature of the air outlet of the second drying zone is T2, and the difference between T1 and T2 preset by the laundry treatment device and the opening degree of the air dividing valve Corresponding relationship, according to the difference between T1 and T2, the opening degree of the corresponding air divider is obtained and adjusted.

As an embodiment of the present invention, in the method for controlling a clothes processing device, the heat exchange system is a heat pump system or a heating pipe water cooling system, calculates the power required for each drying zone, and controls the output compressor speed or heating The power of the tube regulates the power of the drying zone.

As an embodiment of the present invention, in the method for controlling a laundry processing device, the heat exchange system is a heat pump system. The heat pump includes an evaporator, a compressor, and a condenser. When the temperature at the air outlet of the drying zone and the evaporator, When the temperature difference between the parts of the condenser is greater than the set value, it is judged that the drying is completed.

Another object of the present invention is to provide a laundry processing apparatus using the method for controlling a laundry processing apparatus according to any one of the above.

After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

The control method of the clothes treatment device of the present invention is applicable to a state where multiple drying zones are running at the same time, fully utilizing the heat provided by the heat exchange system, improving the heat utilization rate, shortening the drying time, improving the drying efficiency, and saving energy consumption. .

The specific embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings are used as a part of the present invention to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the drawings in the following description are just some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative work. In the drawings:

FIG. 1 is a schematic flowchart of a method for controlling a clothes treating apparatus according to the present invention.

It should be noted that these drawings and text descriptions are not intended to limit the scope of the concept of the present invention in any way, but rather to explain the concept of the present invention to those skilled in the art by referring to specific embodiments.

detailed description

In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. The following embodiments are used to explain the present invention. , But not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that the terms "up", "down", "front", "rear", "left", "right", "vertical", "inside", "outside", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplified description, and does not indicate or imply that the device or element referred to must have a specific orientation, a specific orientation Construction and operation should therefore not be construed as limiting the invention.

In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" should be understood in a broad sense unless otherwise specified and limited. For example, they may be fixed connections or removable. Connected or integrated; it can be mechanical or electrical; it can be directly or indirectly through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

Example 1

As an embodiment of the present invention, in the method for controlling a laundry processing device, the heat exchange system is a heat pump system. The heat pump includes an evaporator, a compressor, and a condenser. When the temperature difference between the parts of the condenser is greater than the set value, it is judged that the drying is completed.

Example 2

This embodiment further defines or optimizes Embodiment 1.

The detection method of the ambient temperature is: directly detect the ambient temperature through the ambient temperature sensor, or indirectly judge through the temperature sensor of the compressor system.

Preferably, the temperature sensor of the compressor system is used to make an indirect determination, and the ambient temperature is obtained through a comprehensive analysis of the compressor exhaust temperature and the condenser outlet temperature, thereby avoiding the need to specifically install the outside of the clothes treatment device because of the need to detect the external ambient temperature. The temperature sensor simplifies the space occupied.

The gears corresponding to the ambient temperature are divided into a low gear environment, a medium temperature environment, and a high temperature environment. The power database includes sub databases corresponding to the low temperature environment, the medium temperature environment, and the high temperature environment.

For example, when the ambient temperature is between m1 and m2, it is a low-temperature environment, and the power P = K ₁ * G + B ₁ ;

When the ambient temperature is between m2 and m3, it is a medium temperature environment, and the power P = K ₂ * G + B ₂ ;

When the ambient temperature is between m3 and m4, it is a high-temperature environment, and the power P = K ₃ * G + B3.

When multiple drying zones start drying at the same time, first determine the gear to which the ambient temperature belongs, and then call the power calculation method from the database accordingly.

As an embodiment of the present invention, in the method for controlling a laundry processing apparatus, multiple laundry drying zones of the laundry processing apparatus share the same air duct, and the air outlet of the air duct is provided with a plurality of laundry drying zones. Openings that communicate with the air inlets. The air inlets of the air ducts are provided with openings that communicate with the air outlets of multiple clothes drying areas. The outlets of the air ducts and the openings at the air inlets are provided with controllable opening degrees. The air valve controls the opening degree of the air distribution valve according to the initial power required for each laundry drying area to adjust the amount of hot air entering each drying area or the air volume entering the air duct from the drying area.

In the method for controlling a laundry processing apparatus, the laundry processing apparatus includes a first drying zone and a second drying zone, and a weighing value of the first drying zone is G1 and a weighing value of the second drying zone is G2. The correction coefficient of the first drying zone is M1 ', and the correction coefficient of the second drying zone is M2'. The reference opening degree of the air distribution valve corresponding to the simultaneous drying of the first drying zone and the second drying zone. C ', the initial opening of the air divider valve is D', D = (M1 '* G1 / M2' * G2) * C ', where C' is the highest drying efficiency under the same load obtained from experiments Opening value of the air divider at the time.

As a preferred solution of the present invention, a stepping motor is used to control the opening degree of the air distribution valve, so as to facilitate flexible adjustment according to the drying conditions of each drying zone in real time.

Example 3

This embodiment further defines or optimizes Embodiment 1 or Embodiment 2.

As shown in FIG. 1, in the method for controlling a laundry processing apparatus, the laundry processing apparatus includes two laundry drying zones that share the same heat exchange system, and the drying zones start drying at the same time, which specifically includes the following steps:

S1, two drying zones start drying at the same time;

S2. Calculate the initial power required for each drying zone according to the ambient temperature and load;

S3. Calculate the opening degree of the air divider valve.

S4. Obtain the temperature value of the temperature sensor set in the drying area.

S5. Adjust the opening degree of the air distribution valve according to the temperature of the drying zone, and run for a period of time;

S6. Determine whether any drying area meets the drying conditions, and if not, perform step S4;

If yes, end the operation of the drying zone, switch the air distribution valve to another drying zone, execute the single-zone drying program until the drying conditions are met, and end the operation.

In the step S2, the calculation method of the initial power is: the power is P, the weighing value of the drying area is G, and the power P = K _i * G + B _j , where K _i and B _j are related to the ambient temperature. The corresponding constants have different values of K _i and B _j at different ambient temperatures.

In the step S3, the opening degree of the air distribution valve is obtained according to the following method: the weighing value of the first drying zone is G1, the weighing value of the second drying zone is G2, and the correction coefficient of the first drying zone Is M1, the correction coefficient of the second drying zone is M2, the reference opening degree of the air distribution valve corresponding to the simultaneous drying of the first drying zone and the second drying zone is C, and the initial opening degree of the air distribution valve is D, D = (M1 * G1 / M2 * G2) * C, where C is the opening value of the air distribution valve when the drying efficiency under the same load is the highest obtained according to the experiment.

In step S5, the opening degree of the air dividing valve is adjusted according to the temperature of the air outlets of the first drying zone and the second drying zone. When the temperature of one drying zone rises faster than the other drying zone, the air dividing valve is controlled. The opening towards the fast-heating drying zone becomes smaller.

Preferably, the opening degree of the air dividing valve is adjusted according to the following method: the temperature of the air outlet of the first drying zone is T1, the temperature of the air outlet of the second drying zone is T2, and the clothes processing device presets The correspondence between the difference between T1 and T2 and the opening degree of the air divider valve is obtained based on the difference between T1 and T2 and adjusted.

The control method of the clothes treatment device of the present invention is applicable to a state where multiple drying zones are running at the same time, fully utilizing the heat provided by the heat exchange system, improving the heat utilization rate, shortening the drying time, improving the drying efficiency, and saving energy .

Example 4

This embodiment further defines, optimizes, or replaces the solutions of Embodiments 1-3, and the solutions of the embodiments can be used in combination.

The method for controlling a clothes processing apparatus according to this embodiment includes a step of determining whether a certain drying area is dried, and the method for determining the drying is:

Step A: The temperature at the air outlet is collected every X seconds. When the number of consecutive occurrences of a temperature value is detected as N, the temperature value is recorded as the equilibrium temperature value TempA1 within the current time;

Step B: Obtain the relationship between the equilibrium temperature value TempA and the equilibrium difference value ΔT stored in the laundry processing device, and obtain the equilibrium difference value ΔT1 corresponding to the equilibrium temperature value TempA1 within the current time;

Step C: Continue heating, and detect and calculate the difference between the temperature at the air outlet and the equilibrium temperature value TempA1 in real time. When the difference is greater than or equal to the equilibrium difference ΔT1, the laundry is judged to be dry.

As an implementation manner, before step A, it is further provided:

Step A1: Perform drying tests on different loads to obtain drying temperature and time curves under each load;

Step A2: Calculate the equilibrium temperature value TempA and the end temperature value T corresponding to each load according to the drying temperature and time curve;

Step A3: Calculate the balance difference value ΔT corresponding to each equilibrium temperature value TempA from the formula T = TempA + △ T.

As an implementation manner, after the step A and before the step B, it is further provided:

Step A4: Continue to collect the temperature at the air outlet. If it is detected that a certain temperature value appears more frequently than the previous TempA1, the temperature value is recorded as TempA1 again.

In step A, if TempA1 is not obtained within a set period of time, the temperature value that occurs the most in this period of time is recorded as TempA1.

In the step A, the value of X is adjusted according to models with different structures, and the value range is: 1 ≦ X ≦ 30.

In the step A, the value of N is adjusted according to different load types and load weights, and its value range is: 3 ≦ N ≦ 15.

In step A, for a large load, when the number of consecutive occurrences of a certain temperature value is detected as N, the temperature value is recorded as the current equilibrium temperature value TempA1; for a small load, when a certain occurrence of a temperature value is detected continuously When the number of times is Na, the temperature value is recorded as the current equilibrium temperature value TempA1; where a is the test constant.

As an implementation manner, in the step B, the relationship between the equilibrium temperature value TempA and the equilibrium difference value ΔT is: when 40 ° C≤TempA≤42 ° C, △ T is 24 ° C; when 43 ° C≤TempA≤ At 46 ° C, △ T is 21 ° C; when 47 ° C≤TempA≤50 ° C, △ T is 16 ° C.

A temperature sensor is installed at the air outlet of the drying area of the laundry processing device, and is used to detect the air temperature in the drying area.

Example 5

This embodiment provides a clothes treatment device, including a heat pump system, multiple clothes drying zones, and an air duct for supplying hot air to the drying zone. The heat pump system includes an evaporator, a compressor, and a condenser, and a heat exchange medium is evaporated during the evaporation. The circulating circuit formed by the compressor, the compressor and the condenser communicates in order to heat the air flowing through the air duct.

The laundry treatment device includes an outer cylinder, an air duct, and an inner cylinder provided in the outer cylinder. The air inlet and the air outlet of the air duct are respectively connected to the rear and front of the outer cylinder. The air duct and the outer cylinder form a closed circuit. There is a fan in the air duct. The evaporator is located at the air inlet of the air duct and is used to condense the air flowing through the air duct. The condenser is located in the air duct between the fan and the evaporator and is used to heat the air flowing through the air duct. air.

Multiple laundry drying areas share the same air duct, and the air outlet of the air duct is provided with openings respectively communicating with the air inlets of the multiple laundry drying areas. The opening is provided with a controllable opening and closing air divider valve. The air outlet is provided with openings which are respectively communicated with the air outlets of the plurality of clothes drying areas, and the opening is provided with a controllable opening and closing air distribution valve.

The laundry processing device is a clothes dryer with two drums, a washing machine with a clothes drying function, or an integrated washing and drying machine.

Alternatively, the laundry processing device is a laundry drying cabinet with two or more drying areas, or a combined laundry processing device with a drying cabinet and a washing machine with a drying function, or other laundry processing devices with a drying function Device for combination of clothes processing structures.

Temperature sensors are installed at the air inlet and air outlet of each drying area to detect the air inlet temperature and air outlet temperature of the drying area.

The above-mentioned laundry processing apparatus adopts any one of the methods for controlling a laundry processing apparatus according to the present invention.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as above with the preferred embodiments, they are not intended to limit the present invention. Any technology that is familiar with the patent Without departing from the scope of the technical solution of the present invention, a person can use the technical content of the above hint to make a few changes or modifications to equivalent embodiments with equivalent changes. Anyone that does not depart from the technical solution of the present invention, according to the technology of the present invention In essence, any simple modifications, equivalent changes, and modifications made to the above embodiments still fall within the scope of the solution of the present invention.

Claims

A method for controlling a laundry processing apparatus, the laundry processing apparatus includes a plurality of drying zones for laundry that share a same heat exchange system, and is characterized in that the plurality of drying zones start drying at the same time, and calculates each according to the ambient temperature and load. The initial power required by the drying area is to provide heat to each drying area in a certain proportion according to the initial power.
The method for controlling a laundry processing device according to claim 1, wherein the laundry drying area of the laundry processing device is provided with a weighing structure for determining the size of the load, and the required drying area is calculated according to the ambient temperature and the weighing value According to the obtained power, the heat provided to each drying area is adjusted according to a certain ratio.
The method for controlling a clothes processing device according to claim 2, wherein the clothes processing device is provided with a power database corresponding to the ambient temperature and the weighing value, and the correspondence between the power and the ambient temperature and the weighing value is: power Is P, the weighing value of the drying zone is G, and the power P = K i * G + B j , where K i and B j are constants corresponding to the ambient temperature, and K i and B j are different at different ambient temperatures. Different values

Preferably, for the same load, the ambient temperature increases and the values of K i and B j become smaller.
The method for controlling a clothes treating device according to claim 2 or 3, wherein multiple clothes drying areas of the clothes treating device share the same air duct, and the air outlet of the air passage is provided with a plurality of clothes drying areas. The air inlets are connected to the openings respectively, and a drivable valve with a controlled opening degree is provided at the opening. The opening degree of the draught valve is controlled according to the initial power required for each laundry drying area to adjust the amount of hot air entering each drying area.
The method for controlling a laundry processing apparatus according to claim 4, wherein the laundry processing apparatus comprises a first drying zone and a second drying zone, and the weighing value of the first drying zone is G1, and the second drying zone The weighing value of the zone is G2, the correction coefficient of the first drying zone is M1, and the correction coefficient of the second drying zone is M2. The partial wind corresponding to the simultaneous drying of the first drying zone and the second drying zone. The reference opening degree of the valve is C, and the initial opening degree of the air divider valve is D, D = (M1 * G1 / M2 * G2) * C, where C is the highest drying efficiency under the same load obtained from the experiment. Opening value of the air divider.
The method for controlling a clothes treating apparatus according to claim 4 or 5, wherein the opening degree of the air distribution valve is adjusted according to the temperature of the first drying area and the second drying area, The correspondence between the temperatures of one drying zone and the second drying zone is preset in the control unit of the laundry processing apparatus.
The method for controlling a clothes treating apparatus according to claim 6, wherein the opening degree of the air distribution valve is adjusted according to the temperature of the air outlet of the first drying zone and the second drying zone, and when the temperature of a drying zone rises The speed is faster than that of another drying area, and the opening of the control air diverter toward the drying area with a rapid heating becomes smaller;

Preferably, the temperature of the air outlet of the first drying zone is T1, the temperature of the air outlet of the second drying zone is T2, and the difference between T1 and T2 preset by the laundry treatment device and the opening degree of the air dividing valve Corresponding relationship, according to the difference between T1 and T2, the opening degree of the corresponding air divider is obtained and adjusted.
The method for controlling a clothes treating device according to any one of claims 1 to 7, characterized in that the heat exchange system is a heat pump system or a heating pipe water cooling system, calculates the power required for each drying zone, and outputs the compressor by controlling The speed or the power of the heating tube regulates the power of the drying area.
The method for controlling a clothes treating device according to any one of claims 1 to 7, wherein the heat exchange system is a heat pump system, and the heat pump includes an evaporator, a compressor, and a condenser. When the temperature difference between the part and the evaporator and the condenser is greater than the set value, it is judged that the drying is completed.
A laundry processing apparatus, characterized in that the method for controlling a laundry processing apparatus according to any one of claims 1-9 is adopted.