Clothes processing device and control method

Abstract

The present invention provides a clothing processing device and a control method, belonging to the technical field of clothing processing; the clothing processing device comprises an outer drum, an inner drum, a condensing air duct and a heating air duct, the outer drum wall is formed with a drying air outlet and a drain outlet, and the outer drum mouth is provided with a drying air inlet; the drying air outlet, the condensing air duct, the heating air duct, the drying air inlet and the outer drum are connected in sequence to form a drying circuit; a condensing water valve is provided in the condensing air duct, a water collecting box is arranged below the outer drum, and the water collecting box and the drain outlet are connected through a drain pipe; a liquid level detection element is used to detect the water level in the water collecting box; when the clothing processing device runs a drying program, the amount of water precipitated from the clothes in the inner drum is determined according to the water level change value in the water collecting box within a unit time and the amount of water delivered by the condensing water valve, and the amount of water delivered by the condensing water valve is adjusted according to the amount of water precipitated from the clothes in the inner drum within a unit time, or the amount of water delivered by the condensing water valve and the power of the heating element are adjusted in a coordinated manner; the drying energy consumption is reduced and the condensation efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of clothing processing, and in particular relates to a clothing processing device and a control method. Background Art

[0002] In recent years, with the improvement of living standards and consumers' requirements for quality of life, drying equipment such as clothing dryers, food dryers, industrial material drying equipment, etc. are increasingly used in households and industrial fields. Traditional drying equipment mostly uses preset drying time and temperature for operation. Although this operation method is simple, there are many problems in actual use, such as high energy consumption, uneven drying, damage to materials or clothing, etc.

[0003] The drying control methods of existing clothing processing equipment have certain limitations. It is difficult to accurately adapt to the characteristics and needs of different materials, resulting in uneven drying effects; the energy saving performance is poor, and the fixed operating rhythm causes the equipment to waste a lot of energy during the drying process; the poor drying judgment accuracy may result in the clothes not being completely dry or over-dry when the load is taken out, affecting the user experience. Summary of the invention

[0004] In view of this, the present invention provides a clothes processing device and a control method to solve the problems of high drying energy consumption, low drying efficiency and inaccurate dryness judgment of the existing clothes processing devices.

[0005] The present invention provides a clothes processing device, the clothes processing device comprises an outer drum, an inner drum, a condensing air duct and a heating air duct, the outer drum comprises an outer drum wall and an outer drum mouth, the outer drum wall is formed with a drying air outlet and a drain port, the outer drum mouth is provided with a drying air inlet; the inner drum is rotatably arranged in the outer drum, and the inner drum is used to place clothes; the drying air outlet, the condensing air duct, the heating air duct, the drying air inlet and the outer drum are sequentially connected to form a drying circuit; the condensing air duct is provided with a condensation water valve, and the condensation water valve can transport condensation water into the condensing air duct; the heating air duct is provided with a heating element, and the heating element is used to heat the drying air flow flowing through;

[0006] The laundry processing device further comprises:

[0007] A water collecting box is arranged below the outer cylinder, and the water collecting box and the drain port are connected through a drain pipe; the water collecting box can collect water discharged from the outer cylinder into the water collecting box through the drain pipe;

[0008] A liquid level detection member, used to detect the water level in the water collecting box;

[0009] a control module configured to determine the amount of water precipitated from the clothes in the inner drum according to the water level change value in the water collecting box and the amount of water delivered by the condensing water valve within a unit time when the clothes processing device runs a drying program, and to adjust the amount of water delivered by the condensing water valve according to the amount of water precipitated from the clothes in the inner drum within a unit time, or to coordinately adjust the amount of water delivered by the condensing water valve and the power of the heating element;

[0010] Among them, the regulation of the amount of water delivered by the condensate valve includes adjusting at least one of the valve port size of the condensate valve and the switching ratio of the condensate valve within a unit time; the switching ratio of the condensate valve is the ratio of the cumulative time that the condensate valve is in an open state to the cumulative time that the condensate valve is in a closed state.

[0011] The present invention provides a control method for a clothes processing device, wherein the clothes processing device is the clothes processing device described above; the control method comprises:

[0012] When the clothes processing device runs the drying program, obtaining a water level change value in the water collecting box within a unit time;

[0013] Determine the amount of water precipitated from the clothes in the inner drum within a unit time according to the water level change value in the water collecting box within a unit time and the amount of water delivered by the condensation water valve;

[0014] According to the amount of water precipitated from the clothes in the inner drum within a unit time, the amount of water delivered by the condensation water valve is adjusted, or the amount of water delivered by the condensation water valve and the power of the heating element are adjusted in coordination.

[0015] Further optionally, determining the amount of water precipitated from the clothes in the inner drum within a unit time according to the water level change value in the water collecting box within a unit time and the amount of water delivered by the condensation water valve within a unit time includes:

[0016] Calculate the amount of water collected by the water collecting box per unit time according to the water level change value in the water collecting box per unit time and the bottom area of ​​the water collecting box;

[0017] Calculate the amount of water delivered by the condensate valve per unit time according to the accumulated time that the condensate valve is in an open state per unit time and the flow area of ​​the condensate valve;

[0018] The amount of water precipitated from the clothes in the inner drum per unit time is calculated based on the amount of water collected by the water collecting box per unit time and the amount of water delivered by the condensation water valve per unit time.

[0019] Further optionally, adjusting the amount of water delivered by the condensate valve according to the amount of water precipitated by the clothes in the inner drum within a unit time includes:

[0020] Compare the amount of water released from the clothes in the inner drum within a unit time with each preset amount of water;

[0021] According to the result of comparing the amount of water precipitated from the clothes in the inner drum within a unit time with each preset water amount, the valve opening size or the switching ratio of the condensed water valve is adjusted.

[0022] Further optionally, adjusting the valve port size or the switch ratio of the condensate valve according to the result of comparing the amount of water precipitated by the clothes in the inner drum within a unit time with each preset water amount comprises:

[0023] When the amount of water precipitated from the clothes in the inner drum within a unit time is less than a first preset amount of water, adjusting the valve port of the condensed water valve to close;

[0024] When the amount of water precipitated from the clothes in the inner drum within a unit time is greater than or equal to the first preset water amount and less than the second preset water amount, adjusting the valve port of the condensed water valve to open and close according to a first switching ratio;

[0025] When the amount of water precipitated from the clothes in the inner drum within a unit time is greater than or equal to the second preset water amount and less than the third preset water amount, adjusting the valve port of the condensed water valve to open and close according to the second switching ratio;

[0026] When the amount of water precipitated from the clothes in the inner drum within a unit time is greater than or equal to the third preset amount of water, adjusting the valve port of the condensed water valve to open and close according to a third opening and closing ratio;

[0027] Among them, the first switching ratio is greater than the second switching ratio, and the second switching ratio is greater than the third switching ratio; when the valve port of the condensate valve is in an open state, the valve port size of the condensate valve is a preset valve port size.

[0028] Further optionally, the clothing processing device further comprises a water content detection component, and the water content detection component is used to detect the water content of the clothing in the inner drum; and the control method further comprises:

[0029] Determine a change in the amount of water released from the clothes in the inner drum within two consecutive unit time periods;

[0030] Determining the current drying stage of the drying program according to the amount of water or the change in the amount of water released from the clothes in the inner drum within two consecutive unit time periods;

[0031] When the current drying stage is a dryness determination stage, the moisture content of the clothes in the inner drum is obtained, and the dryness of the clothes in the inner drum is determined according to the moisture content;

[0032] When the current drying stage is a cooling stage, the heating element is controlled to stop heating.

[0033] Further optionally, the determining of the change value of the amount of water released from the clothes in the inner drum within two consecutive unit time periods comprises:

[0034] Calculate the change value of the amount of water collected by the water collecting box and the change value of the amount of water delivered by the condensate valve within two consecutive unit time lengths;

[0035] The change value of the amount of water precipitated from the clothes in the inner drum within two consecutive unit time lengths is determined based on the change value of the amount of water collected by the water collecting box within two consecutive unit time lengths and the change value of the amount of water delivered by the condensation water valve within two consecutive unit time lengths.

[0036] Further optionally, the two consecutive unit time lengths include a first unit time length and a second unit time length; the calculation of the change value of the amount of water collected by the water collecting box and the change value of the amount of water delivered by the condensate valve within two consecutive unit time lengths includes:

[0037] Calculating the amount of water collected by the water collecting box in the first unit time according to the first water level change value and the bottom area of ​​the water collecting box, and calculating the amount of water collected by the water collecting box in the second unit time according to the second water level change value and the bottom area of ​​the water collecting box;

[0038] Calculate the change value of the amount of water collected by the water collecting box within the first unit time and the second unit time according to the amount of water collected by the water collecting box within the first unit time and the amount of water collected by the water collecting box within the second unit time;

[0039] Calculating the amount of water delivered by the condensate valve in the first unit time according to the first accumulated time and the flow area of ​​the condensate valve, and calculating the amount of water delivered by the condensate valve in the second unit time according to the second accumulated time and the flow area of ​​the condensate valve;

[0040] Calculate the change value of the amount of water delivered by the condensate valve within the first unit time and the second unit time according to the amount of water delivered by the condensate valve within the first unit time and the amount of water delivered by the condensate valve within the second unit time;

[0041] Among them, the first water level change value is the water level change value in the water collecting box within the first unit time, and the second water level change value is the water level change value in the water collecting box within the second unit time; the first cumulative time is the cumulative time that the condensate valve is in the open state within the first unit time, and the second cumulative time is the cumulative time that the condensate valve is in the open state within the second unit time.

[0042] Further optionally, determining the current drying stage of the drying program according to the amount of water or the change in the amount of water released from the clothes in the inner drum within two consecutive unit time periods includes:

[0043] When the change value of the amount of water released from the clothes in the inner drum within two consecutive unit time lengths is less than or equal to zero, determining that the current drying stage of the drying program is a drying judgment stage;

[0044] When the amount of water released from the clothes in the inner drum within two consecutive unit time periods is less than a first preset amount of water, it is determined that the current drying stage of the drying program is a cooling stage.

[0045] Further optionally, when the opening and closing ratio of the condensate valve is constant, the control method further includes:

[0046] The power of the heating element is adjusted according to the amount of water released from the clothes in the inner drum within a unit time.

[0047] Further optionally, adjusting the power of the heating element according to the amount of water released from the clothes in the inner drum within a unit time includes:

[0048] Compare the amount of water released from the clothes in the inner drum within a unit time with each preset amount of water;

[0049] When the amount of water released from the clothes in the inner drum within a unit time is greater than or equal to the first preset water amount and less than the second preset water amount, adjusting the heating element to operate at the first power;

[0050] When the amount of water released from the clothes in the inner drum within a unit time is greater than or equal to the second preset water amount and less than the third preset water amount, adjusting the heating element to operate at the second power;

[0051] When the amount of water released from the clothes in the inner drum within a unit time is greater than or equal to the third preset water amount, adjusting the heating element to operate at a third power;

[0052] The first power is greater than the second power, and the second power is greater than the third power.

[0053] Further optionally, the coordinated regulation of the amount of water delivered by the condensate valve and the power of the heating element includes:

[0054] adjusting the power of the heating element according to the on / off ratio of the condensate valve;

[0055] Among them, the greater the opening and closing ratio of the condensate valve is, the greater the power of the heating element is.

[0056] Further optionally, adjusting the power of the heating element according to the switch ratio of the condensate valve includes:

[0057] When the condensate valve is opened and closed according to a first switching ratio, adjusting the heating element to operate according to a first power;

[0058] When the condensate valve is opened and closed according to the second switching ratio, adjusting the heating element to operate according to the second power;

[0059] When the condensate valve is opened and closed according to a third switching ratio, adjusting the heating element to operate according to a third power;

[0060] The first power is greater than the second power, and the second power is greater than the third power.

[0061] Compared with the prior art, the beneficial effects of the present invention are mainly:

[0062] The water collecting box is arranged below the outer drum, and the water collecting box and the drain outlet are connected through a drain pipe; the water in the outer drum can enter the water collecting box through the drain pipe; the liquid level detection component is used to detect the water level in the water collecting box; when the clothing processing equipment runs the drying program, the control module determines the amount of water precipitated from the clothes in the inner drum according to the water level change value in the water collecting box and the amount of water delivered by the condensation water valve within a unit time, and adjusts the amount of water delivered by the condensation water valve according to the amount of water precipitated from the clothes in the inner drum within a unit time, or coordinately adjusts the amount of water delivered by the condensation water valve and the power of the heating element; reduces drying energy consumption, improves condensation efficiency, shortens drying time, can accurately judge drying, and improves user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0064] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0065] Figure 1 A schematic structural diagram of an embodiment of a clothes processing device provided by the present invention;

[0066] Figure 2 A curve diagram showing the change of humidity of clothes in the inner drum when the clothes processing device provided by the present invention runs a drying program;

[0067] Figure 3 A curve diagram showing the change in the amount of water released from the clothes in the inner drum when the clothes processing device provided by the present invention runs a drying program;

[0068] Figure 4 A schematic flow chart of an embodiment of a control method for a clothes processing device provided by the present invention;

[0069] In the figure:

[0070] 1-outer drum; 11-water; 12-drain pipe; 2-inner drum; 21-clothes; 3-water collecting box; 4-liquid level detection component. DETAILED DESCRIPTION

[0071] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0072] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two, but does not exclude the inclusion of at least one.

[0073] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0074] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0075] The drying control methods of existing clothing processing equipment have certain limitations. It is difficult to accurately adapt to the characteristics and needs of different materials, resulting in uneven drying effects. The energy saving performance is poor, and the fixed operation rhythm causes the equipment to waste a lot of energy during the drying process. The poor dryness judgment accuracy may result in the clothes being not completely dry or over-dry when the clothes are taken out, affecting the user experience.

[0076] The present invention creatively provides a clothing processing device, wherein a drying air outlet, a condensing air duct, a heating air duct, a drying air inlet and an outer drum are connected in sequence to form a drying circuit, and the drying air flow can circulate in the drying circuit; a condensing water valve is provided in the condensing air duct, and the condensing water valve can transport condensed water into the condensing air duct; a heating element is provided in the heating air duct, and the heating element is used to heat the drying air flow flowing through; a water collecting box is provided below the outer drum, and the water collecting box and the drain outlet are connected through a drain pipe; the water in the outer drum can enter the water collecting box through the drain pipe; a liquid level detection element is used to detect the water level in the water collecting box; when the clothing processing device runs a drying program, the amount of water precipitated from the clothes in the inner drum is determined according to the water level change value in the water collecting box within a unit time and the amount of water transported by the condensing water valve, and the amount of water transported by the condensing water valve is adjusted according to the amount of water precipitated from the clothes in the inner drum within a unit time, or the amount of water transported by the condensing water valve and the power of the heating element are coordinated to adjust; the drying energy consumption is reduced, the condensation efficiency is improved, the drying time is shortened, the drying can be accurately judged, and the user experience is improved.

[0077] Example 1

[0078] like Figures 1 to 3 As shown, the present embodiment provides a clothes processing device, which includes an outer drum 1, an inner drum 2, a condensing air duct, a heating air duct and a drying fan. The outer drum 1 includes an outer drum wall and an outer drum mouth, the outer drum wall is formed with a drying air outlet and a drain outlet, and the outer drum mouth is provided with a drying air inlet; the inner drum 2 is rotatably arranged in the outer drum 1, and the inner drum 2 is used to place clothes 21; the drying air outlet, the condensing air duct, the drying fan, the heating air duct, the drying air inlet and the outer drum 1 are connected in sequence to form a drying circuit, and under the action of the drying fan, the drying air flow can circulate in the drying circuit; a condensation water valve is provided in the condensation air duct, and the condensation water valve can transport condensation water into the condensation air duct; a heating element is provided in the heating air duct, and the heating element is used to heat the drying air flow flowing through;

[0079] The clothing processing device is provided with a drying program, which includes multiple drying stages, including a heating and heating stage, a constant temperature dehumidification stage, a dryness judgment stage and a cooling stage, which are sequentially operated in chronological order; in the heating and heating stage of the drying program, the clothing 21 in the inner drum 2 is mainly heated and heated; in the constant temperature dehumidification stage of the drying program, the drying airflow exchanges heat with the clothing 21 in the inner drum 2, the water in the clothing 21 evaporates into water vapor, the water vapor mixes with the drying airflow, the humidity of the drying airflow is increased, and the drying airflow and the condensed water are heat exchanged in the condensation duct, The water vapor in the drying airflow is condensed into water; the water precipitated from the clothes 21 in the inner drum 2 and the condensed water transported by the condensation valve are collectively referred to as water 11, and then the water 11 flows downward under the action of gravity and enters the outer drum 1 through the drying air outlet, and is then discharged through the drain outlet; in the dryness judgment stage of the drying program, the water content of the clothes 21 in the inner drum 2 is mainly detected, and the water content of the clothes 21 in the inner drum 2 is compared with the preset water content, and whether the clothes 21 in the inner drum 2 are dry is judged according to the comparison result; in the cooling stage of the drying program, the clothes 21 in the inner drum 2 are mainly cooled down;

[0080] Figure 2 The humidity change curve of the clothes 21 in the inner drum 2 when the clothes processing device runs the drying program is shown in FIG. Figure 2 It can be seen that as time goes by, the humidity of the clothes 21 gradually decreases; the humidity of the clothes 21 changes slowly in the heating stage, and changes dramatically in the constant temperature dehumidification stage;

[0081] Figure 3 The curve diagram of the amount of water released from the clothes 21 in the inner drum 2 when the clothes processing device runs a drying program is shown in FIG. Figure 3 It can be seen that with the increase of time, the amount of water precipitated from the clothes 21 first increases, then approaches stability, and then changes dramatically; the amount of water precipitated from the clothes 21 changes slowly in the heating stage, changes dramatically in the constant temperature dehumidification stage, and changes slowly in the drying stage.

[0082] The laundry treatment device also includes:

[0083] The water collecting box 3 is arranged below the outer drum 1, and the water collecting box 3 and the drain port are connected through the drain pipe 12; the water 11 in the outer drum 1 can enter the water collecting box 3 through the drain pipe 12; specifically, the drying airflow exchanges heat with the condensed water when flowing through the condensation air duct, and the water vapor in the drying airflow can be condensed into water, and the water flows downward under the action of gravity and enters the outer drum 1 through the drying air outlet, and then enters the water collecting box 3 through the drain port and the drain pipe 12; that is, the condensed water transported into the condensation air duct by the condensation water valve and the water precipitated from the clothes 21 in the inner drum 2 can both enter the water collecting box 3 through the drain port and the drain pipe 12;

[0084] A liquid level detection member 4, which is used to detect the water level in the water collecting box 3;

[0085] A control module, which is configured to determine the amount of water precipitated from the clothes 21 in the inner drum 2 according to the water level change value in the water collecting box 3 and the amount of water delivered by the condensing water valve in a unit time when the clothes processing device runs a drying program, and adjust the amount of water delivered by the condensing water valve according to the amount of water precipitated from the clothes 21 in the inner drum 2 in a unit time, or coordinately adjust the amount of water delivered by the condensing water valve and the power of the heating element; that is, according to the amount of water precipitated from the clothes 21 in the inner drum 2 in a unit time, adjust the amount of water delivered by the condensing water valve alone; or coordinately adjust the amount of water delivered by the condensing water valve and the power of the heating element according to the amount of water precipitated from the clothes 21 in the inner drum 2 in a unit time;

[0086] Among them, regulating the amount of water delivered by the condensate valve includes adjusting at least one of the valve port size of the condensate valve and adjusting the switching ratio of the condensate valve within a unit time; the switching ratio of the condensate valve is the ratio of the cumulative time that the condensate valve is in an open state to the cumulative time that the condensate valve is in a closed state, that is, the condensate valve can be in an open state either continuously or intermittently, and the time that the condensate valve is in an open state is the cumulative time.

[0087] Example 2

[0088] The amount of water precipitated from the clothes 21 in the inner drum 2 and the changing trend of the precipitated water amount are different in each drying stage of the drying program, and the drying process of the clothes processing device can be controlled according to the amount of water precipitated from the clothes 21 and the changing trend of the precipitated water amount;

[0089] like Figure 4 As shown, based on embodiment 1, this embodiment further provides a control method for a clothes processing device, the control method comprising:

[0090] S1. When the clothes processing device runs a drying program, a water level change value in the water collecting box 3 within a unit time is obtained;

[0091] S2, determining the amount of water precipitated from the clothes 21 in the inner drum 2 in a unit time according to the water level change value in the water collecting box 3 in a unit time and the amount of water delivered by the condensation water valve;

[0092] S3. According to the amount of water released from the clothes 21 in the inner drum 2 per unit time, the amount of water delivered by the condensation water valve is adjusted, or the amount of water delivered by the condensation water valve and the power of the heating element are adjusted in coordination.

[0093] Accurately determining the water level change value in the water collecting box 3 and the amount of water delivered by the condensation water valve within a unit time is the key to calculating the amount of water precipitated from the clothes 21 in the inner drum 2 within a unit time, which is further explained below; S2 includes:

[0094] S21, calculating the amount of water collected by the water collecting box 3 per unit time according to the water level change value in the water collecting box 3 per unit time and the bottom area of ​​the water collecting box 3;

[0095] S22, calculating the amount of water delivered by the condensate valve per unit time according to the accumulated time that the condensate valve is in an open state per unit time and the flow area of ​​the condensate valve;

[0096] S23, calculating the amount of water precipitated from the clothes 21 in the inner drum 2 per unit time according to the amount of water collected by the water collecting box 3 per unit time and the amount of water delivered by the condensation water valve per unit time.

[0097] According to the amount of water precipitated from the clothes 21 in the inner drum 2 per unit time and the preset amount of water, the amount of water delivered by the condensate valve is accurately adjusted, which is further described below; S3 includes:

[0098] S31, comparing the amount of water released from the clothes 21 in the inner drum 2 per unit time with each preset amount of water;

[0099] S32, adjusting the valve opening size or the switch ratio of the condensate valve according to the result of comparing the amount of water precipitated from the clothes 21 in the inner drum 2 per unit time with each preset water amount.

[0100] Further, S32 includes:

[0101] S321, when the amount of water precipitated from the clothes 21 in the inner drum 2 per unit time is less than the first preset amount of water, the valve port of the condensed water valve is adjusted to be closed; in the heating stage, the water on the clothes 21 in the inner drum 2 absorbs heat and is converted into water vapor, and the water vapor is mixed with the drying air flow and circulates in the drying circuit, and the valve port of the condensed water valve is closed at this time;

[0102] S322, when the amount of water precipitated from the clothes 21 in the inner drum 2 per unit time is greater than or equal to the first preset water amount and less than the second preset water amount, the valve port of the condensation water valve is adjusted to open and close according to the first switch ratio; when the temperature of the inner drying airflow reaches the preset temperature, the evaporation efficiency of the water on the clothes 21 in the inner drum 2 reaches the saturation state, and the drying enters the constant temperature dehumidification stage, and the valve port of the condensation water valve is opened and closed according to the first switch ratio; the drying airflow enters the condensation air duct and exchanges heat with the condensation water, and the water vapor therein is converted into water. Under the action of gravity, the condensation water transported by the condensation valve and the water precipitated from the clothes 21 in the inner drum 2 both flow downward, and enter the outer drum 1 through the drying air outlet, and then enter the water collecting box 3 through the drain outlet and the drain pipe 12; the amount of water precipitated from the clothes 21 in the inner drum 2 per unit time will slowly increase;

[0103] S323, when the amount of water precipitated from the clothes 21 in the inner drum 2 per unit time is greater than or equal to the second preset water amount and less than the third preset water amount, adjusting the valve port of the condensed water valve to open and close according to the second opening and closing ratio;

[0104] S324. When the amount of water separated from the laundry 21 in the inner cylinder 2 within a unit time is greater than or equal to the third preset amount of water, the valve opening of the condensate valve is opened and closed according to the third switching ratio; when the amount of water separated from the laundry 21 in the inner cylinder 2 reaches the maximum value and then slowly decreases, the water content of the laundry 21 in the inner cylinder 2 drops to a lower state;

[0105] Among them, the unit time is one minute; the first switching ratio is greater than the second switching ratio, and the second switching ratio is greater than the third switching ratio; the first switching ratio: the cumulative duration of the condensate valve in the open state is 30s, and the cumulative duration of the condensate valve in the closed state is 30s; the second switching ratio: the cumulative duration of the condensate valve in the open state is 40s, and the cumulative duration of the condensate valve in the closed state is 20s; the third switching ratio: the cumulative duration of the condensate valve in the open state is 50s, and the cumulative duration of the condensate valve in the closed state is 10s;

[0106] The first preset amount of water is q1, the second preset amount of water is q2, and the third preset amount of water is q3, satisfying: q1 < q2 < q3, 0L ≤ q1 ≤ 0.08L, 0.09L ≤ q2 ≤ 0.14L, 0.15L ≤ q3 ≤ 0.3L; the value ranges of q1, q2, and q3 depend on the drying specifications and drying efficiency of the laundry treatment device;

[0107] Within a fixed time, the amount of water transported by the condensate valve is stable and depends on the drying specifications of the laundry treatment device. The amount of water transported by the condensate valve is Q, and Q satisfies: 0.2L ≤ Q ≤ 0.7L; when the valve opening of the condensate valve is in the open state, the size of the valve opening of the condensate valve is the preset valve opening size.

[0108] Embodiment 3

[0109] Based on Embodiment 2, this embodiment proposes that the laundry treatment device further includes a water content detection member for detecting the water content of the laundry 21 in the inner cylinder 2; the control method further includes:

[0110] S4. Determine the change value of the amount of water separated from the laundry 21 in the inner cylinder 2 within two consecutive unit times;

[0111] S5. Determine the current drying stage of the drying program according to the amount of water separated from the laundry 21 in the inner cylinder 2 or the change value of the amount of water within two consecutive unit times;

[0112] S61. When the current drying stage is the dryness determination stage, obtain the water content of the laundry 21 in the inner cylinder 2 and determine the dryness according to the water content of the laundry 21 in the inner cylinder 2;

[0113] S62. When the current drying stage is the cooling stage, control the heating member to stop heating;

[0114] When the temperature of the air in the inner drum 2 reaches the cooling temperature, the drying process can be controlled to end.

[0115] The change value of the amount of water precipitated from the clothes 21 in the inner drum 2 within two consecutive unit time lengths is mainly determined based on the change value of the amount of water collected by the water collecting box 3 within two consecutive unit time lengths and the change value of the amount of water delivered by the condensate valve, which is further described below; S4 includes:

[0116] S41, calculating the change value of the amount of water collected by the water collecting box 3 and the change value of the amount of water delivered by the condensate valve within two consecutive unit time lengths;

[0117] S42, determining the change value of the amount of water precipitated from the clothes 21 in the inner drum 2 within two consecutive unit time lengths according to the change value of the amount of water collected by the water collecting box 3 within two consecutive unit time lengths and the change value of the amount of water delivered by the condensation water valve within two consecutive unit time lengths.

[0118] Specifically, the two consecutive unit durations include a first unit duration and a second unit duration; S41 includes:

[0119] S411, calculating the amount of water collected by the water collecting box 3 in a first unit time according to the first water level change value and the bottom area of ​​the water collecting box 3, and calculating the amount of water collected by the water collecting box 3 in a second unit time according to the second water level change value and the bottom area of ​​the water collecting box 3;

[0120] S412, calculating the change value of the amount of water collected by the water collecting box 3 within the first unit time and the second unit time according to the amount of water collected by the water collecting box 3 within the first unit time and the amount of water collected by the water collecting box 3 within the second unit time;

[0121] S413, calculating the amount of water delivered by the condensate valve in a first unit time according to the first accumulated time and the flow area of ​​the condensate valve, and calculating the amount of water delivered by the condensate valve in a second unit time according to the second accumulated time and the flow area of ​​the condensate valve;

[0122] S414, calculating a change value of the amount of water delivered by the condensate valve within the first unit time and the second unit time according to the amount of water delivered by the condensate valve within the first unit time and the amount of water delivered by the condensate valve within the second unit time;

[0123] Among them, the first water level change value is the water level change value in the water collecting box 3 within the first unit time, and the second water level change value is the water level change value in the water collecting box 3 within the second unit time; the first cumulative time is the cumulative time that the condensate valve is in the open state within the first unit time, and the second cumulative time is the cumulative time that the condensate valve is in the open state within the second unit time.

[0124] Additionally, the S5 includes:

[0125] S51, when the change value of the amount of water precipitated from the clothes 21 in the inner drum 2 in two consecutive unit time lengths is less than or equal to zero, determining that the current drying stage of the drying program is a drying stage;

[0126] S52: when the amount of water released from the clothes 21 in the inner drum 2 in two consecutive unit time periods is less than a first preset amount of water, determining that the current drying stage of the drying program is a cooling stage.

[0127] Example 4

[0128] Based on Example 2, this example proposes that when the opening and closing ratio of the condensate valve is constant, the control method further includes:

[0129] The power of the heating element is adjusted according to the amount of water released from the clothes 21 in the inner drum 2 per unit time.

[0130] Further, adjusting the power of the heating element according to the amount of water released from the clothes 21 in the inner drum 2 per unit time includes:

[0131] Compare the amount of water released from the clothes 21 in the inner drum 2 per unit time with each preset amount of water;

[0132] When the amount of water released from the clothes 21 in the inner drum 2 per unit time is greater than or equal to the first preset amount of water and less than the second preset amount of water, the heating element is adjusted to operate at the first power;

[0133] When the amount of water released from the clothes 21 in the inner drum 2 per unit time is greater than or equal to the second preset amount of water and less than the third preset amount of water, the heating element is adjusted to operate at the second power;

[0134] When the amount of water released from the clothes 21 in the inner drum 2 per unit time is greater than or equal to the third preset amount of water, the heating element is adjusted to operate at the third power;

[0135] Among them, the first power is greater than the second power, and the second power is greater than the third power; the first power is 60% of the maximum power of the heating element, the second power is 80% of the maximum power of the heating element, and the third power is the maximum power of the heating element.

[0136] Example 5

[0137] Different from Example 2, this example proposes that S3 further includes:

[0138] S33, adjusting the power of the heating element according to the on / off ratio of the condensate valve;

[0139] Among them, the larger the switching ratio of the condensate valve is, the greater the power of the heating element is. Accurately controlling the switching ratio of the condensate valve and the power of the heating element can reduce drying energy consumption and improve condensation efficiency and drying efficiency.

[0140] Further, S33 includes:

[0141] S331, when the condensate valve is opened and closed according to the first switching ratio, adjusting the heating element to operate according to the first power;

[0142] S332, when the condensate valve is opened and closed according to the second switching ratio, adjusting the heating element to operate according to the second power;

[0143] S333, when the condensate valve is opened and closed according to the third switching ratio, adjusting the heating element to operate according to the third power;

[0144] Among them, the first power is greater than the second power, and the second power is greater than the third power; the first power is 60% of the maximum power of the heating element, the second power is 80% of the maximum power of the heating element, and the third power is the maximum power of the heating element.

[0145] The exemplary embodiments of the present disclosure are specifically shown and described above. It should be understood that the present disclosure is not limited to the detailed structures, configurations or implementations described herein; on the contrary, the present disclosure is intended to cover various modifications and equivalent configurations included in the spirit and scope of the appended claims.

Claims

1. A clothes processing device, characterized in that; The clothes processing device comprises an outer drum, an inner drum, a condensing air duct and a heating air duct, the outer drum comprises an outer drum wall and an outer drum opening, the outer drum wall is formed with a drying air outlet and a drain outlet, and the outer drum opening is provided with a drying air inlet; the inner drum is rotatably arranged in the outer drum, and the inner drum is used to place clothes; the drying air outlet, the condensing air duct, the heating air duct, the drying air inlet and the outer drum are connected in sequence to form a drying circuit; a condensing water valve is provided in the condensing air duct, and the condensing water valve can transport condensed water into the condensing air duct; a heating element is provided in the heating air duct, and the heating element is used to heat the drying air flow flowing through; The laundry processing device further comprises: A water collecting box is arranged below the outer cylinder, and the water collecting box and the drain port are connected through a drain pipe; the water collecting box can collect water discharged from the outer cylinder into the water collecting box through the drain pipe; A liquid level detection member, used to detect the water level in the water collecting box; a control module configured to determine the amount of water precipitated from the clothes in the inner drum according to the water level change value in the water collecting box and the amount of water delivered by the condensing water valve within a unit time when the clothes processing device runs a drying program, and to adjust the amount of water delivered by the condensing water valve according to the amount of water precipitated from the clothes in the inner drum within a unit time, or to coordinately adjust the amount of water delivered by the condensing water valve and the power of the heating element; Among them, adjusting the amount of water delivered by the condensate valve includes adjusting at least one of the valve port size of the condensate valve and adjusting the switching ratio of the condensate valve within a unit time; the switching ratio of the condensate valve is the ratio of the cumulative time that the condensate valve is in an open state to the cumulative time that the condensate valve is in a closed state.

2. A control method for a clothes processing device, characterized in that: The clothes processing device is the clothes processing device according to claim 1; and the control method comprises: When the clothes processing device runs the drying program, obtaining a water level change value in the water collecting box within a unit time; Determine the amount of water precipitated from the clothes in the inner drum within a unit time according to the water level change value in the water collecting box within a unit time and the amount of water delivered by the condensation water valve; According to the amount of water precipitated from the clothes in the inner drum within a unit time, the amount of water delivered by the condensation water valve is adjusted, or the amount of water delivered by the condensation water valve and the power of the heating element are adjusted in coordination.

3. The control method of the clothes processing device according to claim 2, characterized in that: Determining the amount of water precipitated from the clothes in the inner drum within a unit time according to the water level change value in the water collecting box within a unit time and the amount of water delivered by the condensation water valve comprises: Calculate the amount of water collected by the water collecting box per unit time according to the water level change value in the water collecting box per unit time and the bottom area of ​​the water collecting box; Calculate the amount of water delivered by the condensate valve per unit time according to the accumulated time that the condensate valve is in an open state per unit time and the flow area of ​​the condensate valve; The amount of water precipitated from the clothes in the inner drum per unit time is calculated based on the amount of water collected by the water collecting box per unit time and the amount of water delivered by the condensation water valve per unit time.

4. The control method of the clothes processing device according to claim 2, characterized in that: The adjusting the amount of water delivered by the condensate valve according to the amount of water precipitated from the clothes in the inner drum within a unit time period comprises: Compare the amount of water released from the clothes in the inner drum within a unit time with each preset amount of water; According to the result of comparing the amount of water precipitated from the clothes in the inner drum within a unit time with each preset water amount, the valve opening size or the switching ratio of the condensed water valve is adjusted.

5. The control method of the clothes processing device according to claim 4, characterized in that: According to the result of comparing the amount of water precipitated from the clothes in the inner drum within a unit time with each preset amount of water, adjusting the valve size or the switch ratio of the condensate valve includes: When the amount of water precipitated from the clothes in the inner drum within a unit time is less than a first preset amount of water, adjusting the valve port of the condensed water valve to close; When the amount of water precipitated from the clothes in the inner drum within a unit time is greater than or equal to the first preset water amount and less than the second preset water amount, adjusting the valve port of the condensed water valve to open and close according to a first switching ratio; When the amount of water precipitated from the clothes in the inner drum within a unit time is greater than or equal to the second preset water amount and less than the third preset water amount, adjusting the valve port of the condensed water valve to open and close according to the second switching ratio; When the amount of water precipitated from the clothes in the inner drum within a unit time is greater than or equal to the third preset amount of water, adjusting the valve port of the condensed water valve to open and close according to a third opening and closing ratio; Among them, the first switching ratio is greater than the second switching ratio, and the second switching ratio is greater than the third switching ratio; when the valve port of the condensate valve is in an open state, the valve port size of the condensate valve is a preset valve port size.

6. The control method of the clothes processing device according to claim 2, characterized in that: The clothing processing device further includes a water content detection component, and the water content detection component is used to detect the water content of the clothing in the inner drum; the control method further includes: Determine a change in the amount of water released from the clothes in the inner drum within two consecutive unit time periods; Determining the current drying stage of the drying program according to the amount of water or the change in the amount of water released from the clothes in the inner drum within two consecutive unit time periods; When the current drying stage is a dryness determination stage, the moisture content of the clothes in the inner drum is obtained, and the dryness of the clothes in the inner drum is determined according to the moisture content; When the current drying stage is a cooling stage, the heating element is controlled to stop heating.

7. The control method of the clothes processing device according to claim 6, characterized in that: The step of determining the change in the amount of water released from the clothes in the inner drum within two consecutive unit time periods comprises: Calculate the change value of the amount of water collected by the water collecting box and the change value of the amount of water delivered by the condensate valve within two consecutive unit time lengths; The change value of the amount of water precipitated from the clothes in the inner drum within two consecutive unit time lengths is determined based on the change value of the amount of water collected by the water collecting box within two consecutive unit time lengths and the change value of the amount of water delivered by the condensation water valve within two consecutive unit time lengths.

8. The control method of the clothes processing device according to claim 7, characterized in that: The two consecutive unit durations include a first unit duration and a second unit duration; The calculation of the change in the amount of water collected by the water collecting box and the change in the amount of water delivered by the condensate valve within two consecutive unit time periods includes: Calculating the amount of water collected by the water collecting box in the first unit time according to the first water level change value and the bottom area of ​​the water collecting box, and calculating the amount of water collected by the water collecting box in the second unit time according to the second water level change value and the bottom area of ​​the water collecting box; Calculate the change value of the amount of water collected by the water collecting box within the first unit time and the second unit time according to the amount of water collected by the water collecting box within the first unit time and the amount of water collected by the water collecting box within the second unit time; Calculating the amount of water delivered by the condensate valve in the first unit time according to the first accumulated time and the flow area of ​​the condensate valve, and calculating the amount of water delivered by the condensate valve in the second unit time according to the second accumulated time and the flow area of ​​the condensate valve; Calculate the change value of the amount of water delivered by the condensate valve within the first unit time and the second unit time according to the amount of water delivered by the condensate valve within the first unit time and the amount of water delivered by the condensate valve within the second unit time; Among them, the first water level change value is the water level change value in the water collecting box within the first unit time, and the second water level change value is the water level change value in the water collecting box within the second unit time; the first cumulative time is the cumulative time that the condensate valve is in the open state within the first unit time, and the second cumulative time is the cumulative time that the condensate valve is in the open state within the second unit time.

9. The control method of the clothes processing device according to claim 6, characterized in that: Determining the current drying stage of the drying program according to the amount of water or the change in the amount of water released from the clothes in the inner drum within two consecutive unit time periods includes: When the change value of the amount of water released from the clothes in the inner drum within two consecutive unit time lengths is less than or equal to zero, determining that the current drying stage of the drying program is a drying judgment stage; When the amount of water released from the clothes in the inner drum within two consecutive unit time periods is less than a first preset amount of water, it is determined that the current drying stage of the drying program is a cooling stage.

10. The control method of the clothes processing device according to claim 5, characterized in that: When the opening and closing ratio of the condensate valve is constant, the control method further includes: The power of the heating element is adjusted according to the amount of water released from the clothes in the inner drum within a unit time.

11. The control method of the clothes processing device according to claim 10, characterized in that: The step of adjusting the power of the heating element according to the amount of water released from the clothes in the inner drum within a unit time period comprises: Compare the amount of water released from the clothes in the inner drum within a unit time with each preset amount of water; When the amount of water released from the clothes in the inner drum within a unit time is greater than or equal to the first preset water amount and less than the second preset water amount, adjusting the heating element to operate at the first power; When the amount of water released from the clothes in the inner drum within a unit time is greater than or equal to the second preset water amount and less than the third preset water amount, adjusting the heating element to operate at the second power; When the amount of water released from the clothes in the inner drum within a unit time is greater than or equal to the third preset water amount, adjusting the heating element to operate at a third power; The first power is greater than the second power, and the second power is greater than the third power.

12. The control method of the clothes processing device according to claim 5, characterized in that: The coordinated regulation of the amount of water delivered by the condensate valve and the power of the heating element comprises: adjusting the power of the heating element according to the on / off ratio of the condensate valve; Among them, the greater the opening and closing ratio of the condensate valve is, the greater the power of the heating element is.

13. The control method of the clothes processing device according to claim 12, characterized in that: The step of adjusting the power of the heating element according to the on / off ratio of the condensate valve comprises: When the condensate valve is opened and closed according to a first switching ratio, adjusting the heating element to operate according to a first power; When the condensate valve is opened and closed according to the second switching ratio, adjusting the heating element to operate according to the second power; When the condensate valve is opened and closed according to a third switching ratio, adjusting the heating element to operate according to a third power; The first power is greater than the second power, and the second power is greater than the third power.

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