Air volume adjusting method of clothes processing equipment, electronic equipment and clothes processing equipment

Abstract

The invention relates to the technical field of clothes treatment equipment, in particular to an air volume adjusting method of clothes treatment equipment, electronic equipment and the clothes treatment equipment. The air volume adjusting method comprises the steps that a drying mode selected by a user is determined; based on the drying mode and the structural design and the blocking condition of the drying air duct, the set rotating speed value of a drying fan corresponding to any clothes processing drum and / or two clothes processing drums during drying operation is determined; the instant power of the drying fan in the operation process is obtained, and the real-time air volume of the drying fan is calculated based on the instant power; when the real-time air volume is smaller than the designed air volume, compensating the current rotating speed of the drying fan based on a first compensation rule to obtain the compensated rotating speed of the drying fan; and controlling the drying fan to operate according to the magnitude relationship between the compensation rotating speed and the set rotating speed value. The rotating speed of the drying fan is continuously adjusted in the drying process, so that the air volume of the drying fan is stabilized at the maximum value, and the drying efficiency in the later period of drying is prevented from being reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of clothing processing equipment, and in particular to an air volume adjustment method for clothing processing equipment, an electronic device and a clothing processing equipment. Background Art

[0002] With the improvement of living standards, the development of the washing machine industry has also shown a diversified trend, and with the improvement of people's living standards, the demand for washing machines has gradually increased. Double-drum washing and drying machines have also gradually entered people's daily lives to meet people's growing demand for clothing care.

[0003] At present, the types of double-drum washing and drying machines on the market are relatively simple. Double-drum washing and drying machines have two clothes processing drums. In the drying operation, the upper and lower drums are generally not supported to dry at the same time, resulting in a decrease in the drying efficiency of the washing and drying machine, and the advantages of the washing and drying machine cannot be fully utilized.

[0004] On the other hand, due to the structural design of the drying duct or the blockage in the drying duct, the drying efficiency of the clothes processing drum is low in the later stage of drying, which reduces people's user experience. Summary of the invention

[0005] In view of this, the present invention provides a drying control method for a clothing processing device and a clothing processing device to solve the problem that the existing double-drum washer-dryer has low drying efficiency in the later drying stage and low user experience.

[0006] A first aspect of an embodiment of the present invention provides an air volume adjustment method for a clothes processing device, wherein the clothes processing device comprises two clothes processing drums arranged up and down and a drying air duct, wherein the drying air duct is connected to the two clothes processing drums respectively, and a drying fan is arranged in the drying air duct, wherein the air volume adjustment method comprises:

[0007] Determine the drying method selected by the user;

[0008] Based on the drying mode and the structural design and blocking condition of the drying air duct, determining a set speed value of the drying fan corresponding to when any one of the clothes processing drums and / or both of the clothes processing drums perform a drying operation;

[0009] Acquire the instantaneous power of the drying fan during operation, and calculate the real-time air volume of the drying fan based on the instantaneous power;

[0010] When the real-time air volume is less than the designed air volume, the current rotation speed of the drying fan is compensated based on a first compensation rule to obtain a compensated rotation speed of the drying fan;

[0011] According to the magnitude relationship between the compensation speed and the set speed value, the operation of the drying fan is controlled;

[0012] Among them, the drying mode includes a single-drum drying mode and a multi-drum drying mode. In the single-drum drying mode, one of the clothing processing drums in the drying air duct is connected to form a drying circuit. In the multi-drum drying mode, the drying air duct is connected to both of the clothing processing drums to form corresponding drying circuits. The first compensation rule is to increase the rotation speed of the drying fan according to uniform acceleration.

[0013] In some embodiments, the step of determining the set speed value of the drying fan corresponding to any one of the clothes processing drums and / or both of the clothes processing drums when performing a drying operation based on the drying mode and the structural design and blocking condition of the drying air duct includes:

[0014] Based on the second compensation rule, the rotation speed of the drying fan is controlled to gradually increase at each set time interval, and the real-time power of the drying fan after each set time interval is obtained;

[0015] The set speed value of the drying fan is determined according to the relationship between the real-time power and the maximum power of the drying fan.

[0016] In some embodiments, the step of controlling the rotation speed of the drying fan to gradually increase at set intervals based on the second compensation rule includes:

[0017] Obtaining the real-time rotation speed of the drying fan;

[0018] The rotation speed of the drying fan is increased by increasing the first set rotation speed to the real-time rotation speed each time.

[0019] In some implementations, the first set speed ranges from 55 rpm / min to 65 rpm / min.

[0020] In some implementations, obtaining the real-time power of the drying fan includes:

[0021] Obtaining the real-time current of the drying fan when it rotates;

[0022] Based on the mapping relationship between the real-time current and the power, the real-time power of the drying fan is determined.

[0023] In some embodiments, the single-drum drying mode includes an upper-drum drying mode and a lower-drum drying mode, and the multi-drum drying mode includes a double-drum drying mode;

[0024] Determining the set speed value of the drying fan according to the magnitude relationship between the real-time power and the maximum power of the drying fan includes:

[0025] When the drying mode selected by the user is the upper drum drying mode, determining the first real-time current during the drying fan speed increase process, and when the first real-time current is close to the critical current value of the drying fan, determining the set speed value of the drying fan at this time as the first set speed value; or

[0026] When the drying mode selected by the user is the lower drum drying mode, determining the second real-time current during the drying fan speed increase process, and when the second real-time current is close to the critical current value of the drying fan, determining the set speed value of the drying fan at this time as the second set speed value; or

[0027] When the drying mode selected by the user is the double-drum drying mode, determining the third real-time current during the drying fan speed increase process, and when the third real-time current is close to the critical current value of the drying fan, determining the set speed value of the drying fan at this time as the third set speed value;

[0028] Among them, the first real-time current, the second real-time current and the third real-time current are used to map the real-time power of the drying fan, and the first set speed value, the second set speed value and the third set speed value are used to characterize the maximum power of the drying fan.

[0029] In some embodiments, the calculating the real-time air volume of the drying fan based on the instantaneous power includes:

[0030] The real-time air volume of the drying fan is calculated based on the following corresponding relationship:

[0031] P=Q×p / (3600×η0×η1)

[0032] Wherein, P is the real-time power of the drying fan; Q is the real-time air volume (m 2 / h); p is the total pressure of the drying fan, which is equal to the sum of the static pressure and the dynamic pressure of the drying fan; η0 is the internal efficiency of the drying fan; η1 is the mechanical efficiency.

[0033] In some implementations, compensating the current rotation speed of the drying fan based on the first compensation rule to obtain the compensated rotation speed of the drying fan includes:

[0034] The rotation speed of the drying fan is increased in a manner of increasing the second set rotation speed to the current rotation speed each time, so as to obtain the compensation rotation speed of the drying fan.

[0035] In some implementations, the second set speed ranges from 50 rpm / min to 70 rpm / min.

[0036] In some embodiments, when the compensation speed approaches the set speed value, determining the final speed of the drying fan, and controlling the operation of the drying fan at the final speed includes:

[0037] When the compensation speed is close to the set speed value, the final speed of the drying fan is determined, and the operation of the drying fan is controlled at the final speed.

[0038] In some embodiments, controlling the operation of the drying fan according to the magnitude relationship between the compensation speed and the set speed value includes:

[0039] When the drying mode selected by the user is the upper drum drying mode and the final speed is close to the first set speed value, the final speed at this time is defined as the first speed, and the drying fan is controlled to operate at the first speed; or

[0040] When the drying mode selected by the user is the lower drum drying mode and the final speed is close to the second set speed value, the final speed at this time is defined as the second speed, and the drying fan is controlled to operate at the second speed; or

[0041] When the drying mode selected by the user is the double-drum drying mode and the final speed is close to the third set speed value, the final speed at this time is defined as the third speed, and the drying fan is controlled to operate at the third speed.

[0042] A second aspect of an embodiment of the present invention provides an electronic device, the electronic device comprising:

[0043] a memory for storing one or more computer executable instructions;

[0044] A processor is used to call and execute computer executable instructions in the memory, so as to implement the method as described in any one of the first aspects.

[0045] A third aspect of the embodiments of the present invention provides a clothes processing device, which is controlled by the method described in the first aspect, or has the electronic device described in the second aspect.

[0046] Compared with the prior art, the beneficial effects of the present invention are mainly:

[0047] In the air volume adjustment method, electronic device and clothing processing device of the clothing processing device of the present invention, the clothing processing device includes two clothing processing drums and a drying air duct arranged in an upper and lower orientation, wherein the drying air duct is respectively connected to the two clothing processing drums, that is, the two clothing processing drums share one drying air duct, and a drying fan is arranged in the drying air duct. Through the rotation of the drying fan, appropriate air volume is provided for the two clothing processing drums or any one of the clothing processing drums to meet the drying air volume requirements of the drying operation of the corresponding clothing processing drum. In the air volume adjustment method of the clothing processing equipment, the drying mode selected by the user is determined; then, based on the drying mode selected by the user and the structural design of the drying air duct, the set speed value of the drying fan corresponding to any one or two clothing processing drums performing the drying operation is determined; then, the instantaneous power during the operation of the drying fan is obtained, and the real-time air volume of the drying fan is approximately calculated based on the instantaneous power; when the real-time air volume of the drying fan is less than the designed air volume, the current speed of the drying fan is compensated based on the first compensation rule to obtain the compensated speed of the drying fan; finally, according to the relationship between the compensated speed and the set speed value, the operation of the drying fan is controlled. That is, when any one of the clothes processing drums is performing a drying operation or two clothes processing drums are performing a drying operation at the same time, the set speed value of the drying fan in this state is first determined, and then, when there is drying airflow resistance in the drying air duct under the above state, the speed of the drying fan in the corresponding state can be compensated by the first compensation rule, so as to continuously adjust the speed of the drying fan during the drying process, so that the air volume in the drying fan is stabilized in the maximum value range for drying operations, effectively avoiding the problem of reduced drying efficiency in the later stage of drying, thereby ensuring and improving the drying efficiency of clothes and the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] 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.

[0049] 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.

[0050] Figure 1is a flowchart of steps of a method for adjusting the air volume of a clothes processing device according to an embodiment of the present invention;

[0051] Figure 2 is a corresponding relationship diagram between the air volume, static pressure and rotation speed of a drying fan in an air volume adjustment method of a clothes processing device according to an embodiment of the present invention;

[0052] Figure 3 is a logic judgment flow chart of a method for adjusting the air volume of a clothes processing device according to an embodiment of the present invention;

[0053] Figure 4 The present invention is a logic flow chart for determining a set speed value of a drying fan in a method for adjusting the air volume of a clothes processing device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0059] An exemplary embodiment of the present invention provides a clothes processing device. The clothes processing device may include but is not limited to a washing machine, and the washing machine may include but is not limited to a washing and care machine, a washing and drying machine, etc. For example, the washing machine may be a drum washing machine or a pulsator washing machine with a drying or washing and care function, and of course, the washing machine may also be other types of fully automatic washing machines.

[0060] In this example and the following examples, the clothing processing device is described using a double-drum washer-dryer as an example.

[0061] The clothing treatment device includes two clothing treatment drums and a drying duct arranged in an upper and lower position. The clothing treatment drum located on the upper side is defined as the upper clothing treatment drum, and the clothing treatment drum located on the lower side is defined as the lower clothing treatment drum. It should be noted that both the upper clothing treatment drum and the lower clothing treatment drum can satisfy the needs of washing and drying clothing.

[0062] The drying duct can be connected to the upper clothing processing drum and the lower clothing processing drum respectively, that is, the upper clothing processing drum and the lower clothing processing drum share a drying duct to reduce the design size of the clothing processing equipment. The structural design of two clothing processing drums sharing a drying duct can be realized in a smaller design space.

[0063] A drying fan is arranged in the drying duct, the drying fan is a variable frequency fan, and a drying module can also be arranged in the drying duct. The drying module is configured to dehumidify and heat the hot and humid gas drawn from the clothes processing drum to form a drying airflow, so as to achieve drying treatment of the bound water in the clothes.

[0064] The drying module can be directly fixed in the drying air duct, or fixed in the drying air duct by other fasteners such as screws, etc. The drying module can be arranged at a position close to the air outlet end of the drying air duct.

[0065] It should be noted that the drying module may include but is not limited to an element capable of heating air, such as an electric heating wire or a PTC (Positive Temperature Coefficient) heater.

[0066] Along the moving direction of the drying airflow, the drying fan is located upstream of the drying module. Through the rotation of the drying fan, on the one hand, the hot and humid gas drawn out of the clothes processing drum can be guided to the drying module to form a drying airflow, and on the other hand, the drying airflow can be driven to any one or both clothes processing drums to provide a suitable drying airflow for any one or both clothes processing drums to meet the drying air volume requirements of the corresponding clothes processing drums. Alternatively, in the process of air-drying the clothes or cooling the clothes processing drum in the later stage of the drying process, a suitable air volume is provided to meet the air-drying requirements of the clothes or the cooling requirements of the clothes processing drum.

[0067] The drying fan adopts the structure in the prior art, or the drying fan can directly use an induced draft fan, an axial flow fan, etc.

[0068] like Figure 1 As shown, an exemplary embodiment of the present invention provides an air volume adjustment method for a clothes processing device, and the air volume adjustment method comprises the following steps:

[0069] Step S100: Determine the drying method selected by the user.

[0070] Step S200: based on the drying mode and the structural design and blocking condition of the drying air duct, determining the set speed value of the drying fan corresponding to any one of the clothes processing drums and / or both clothes processing drums when performing the drying operation.

[0071] Step S300: obtaining the instantaneous power of the drying fan during operation, and calculating the real-time air volume of the drying fan based on the instantaneous power.

[0072] Step S400: When the real-time air volume is less than the designed air volume, the current rotation speed of the drying fan is compensated based on the first compensation rule to obtain a compensated rotation speed of the drying fan.

[0073] Step S500: Controlling the operation of the drying fan according to the relationship between the compensation speed and the set speed value.

[0074] In step S100, the drying mode includes a single-drum drying mode and a multi-drum drying mode. In the single-drum drying mode, one of the clothes processing drums in the drying duct is connected to form a drying circuit. In the multi-drum drying mode, the drying duct is connected to both clothes processing drums to form a corresponding drying circuit. When the user needs to dry the clothes, the upper clothes processing drum can be selected to dry the clothes alone, or the lower clothes processing drum can be selected to dry the clothes alone, or both the upper clothes processing drum and the lower clothes processing drum can be selected to dry the clothes.

[0075] In step S200, see the attached Figure 4As shown, in order to ensure that the drying fan can run at a speed close to the maximum speed allowed during the subsequent drying process of the clothes, thereby providing a stable air volume design requirement for the clothes processing drum, the set speed value of the drying fan is obtained before each drying process of the clothes. The set speed value of the drying fan is used to represent the maximum speed or maximum air volume that the drying fan can reach in this state.

[0076] It should be noted that due to the spatial design structure inside the clothing processing equipment, the design structure of the part of the drying duct connected to the upper clothing processing drum is different from the design structure of the part of the drying duct connected to the lower clothing processing drum, and the upper clothing processing drum and the lower clothing processing drum share a drying duct and a drying fan. The difference in the structural design of the drying duct will result in different air duct resistances in the drying duct. Therefore, the difference in the structural design of the drying duct and different types of drying methods will result in different maximum speeds and maximum air volumes that the drying fan can achieve in this state.

[0077] In addition, the maximum speed and maximum air volume that the drying fan can achieve are also related to the blockage in the drying duct. For example, a double-drum washing and conditioning machine will produce a lot of lint during the drying process. Therefore, a filter assembly is designed in the drying duct to intercept the lint. With each drying process, the blockage in the drying duct varies.

[0078] Based on this, before each drying process, when the user selects a different drying mode, and based on the structural design and blocking condition of the drying air duct, the set speed value of the drying fan corresponding to the drying operation of the clothes processing drum selected by the user is determined under the drying mode.

[0079] For example, when the user selects the upper laundry treatment drum for drying, the set speed value of the drying fan in this mode is determined according to the drying mode and based on the structural design and blocking condition of the drying air duct. In other words, when the user selects different drying modes and according to the blocking condition of the drying air duct, the set speed value of the drying fan in this state will be different.

[0080] It should be noted that the blocking condition of the drying air duct can be determined by using the technical solutions in the prior art, which will not be described in detail here.

[0081] In some implementations, the process of determining the set speed value of the drying fan in a certain drying mode can adopt the following method:

[0082] The user selects a corresponding drying method, for example, using the upper laundry processing drum alone to dry the laundry; or using the lower laundry processing drum alone to dry the laundry; or, when there are a large number of laundry pieces, using both the upper laundry processing drum and the lower laundry processing drum to dry the laundry at the same time.

[0083] Then, according to the structural design and blocking condition of the corresponding drying air duct, the speed of the drying fan is controlled to gradually increase at each set time interval based on the second compensation rule. Specifically, the real-time speed of the drying fan at this time can be obtained based on a speed detection device such as a speed sensor set in the clothing processing device, and then the speed of the drying fan is increased by increasing the set speed to the real-time speed each time. The value range of the set speed can be between 50rpm / min and 70rpm / min.

[0084] In the process of gradually increasing the speed of the drying fan, the real-time power of the drying fan is obtained at set intervals. The real-time power of the drying fan can be determined by obtaining the real-time current during the operation of the drying fan and according to the mapping relationship between the real-time current and the power of the drying fan during actual use. The power of the drying fan is the product of the current and the voltage when the drying fan is running, wherein the voltage is the input voltage value of the whole machine when the clothing processing device is running.

[0085] Finally, according to the relationship between the real-time power of the drying fan and the maximum power of the drying fan, the set speed value of the drying fan in this state is determined.

[0086] In one example, the drying mode includes a single-drum drying mode and a multi-drum drying mode, wherein the single-drum drying mode includes an upper-drum drying mode and a lower-drum drying mode, and the multi-drum drying mode includes a double-drum drying mode.

[0087] When the drying method selected by the user is the upper drum drying mode, the first real-time current during the drying fan speed increase process is determined. When the first real-time current is close to the critical current value of the drying fan, the set speed value of the drying fan at this time is determined as the first set speed value.

[0088] When the drying method selected by the user is the lower drum drying mode, the second real-time current during the drying fan speed increase process is determined. When the second real-time current is close to the critical current value of the drying fan, the set speed value of the drying fan at this time is determined as the second set speed value.

[0089] When the drying mode selected by the user is the double-drum drying mode, the third real-time current during the drying fan speed increase process is determined. When the third real-time current is close to the critical current value of the drying fan, the set speed value of the drying fan at this time is determined as the third set speed value.

[0090] The first real-time current, the second real-time current and the third real-time current are used to map the real-time power of the drying fan, and the first set speed value, the second set speed value and the third set speed value are used to characterize the maximum power of the drying fan.

[0091] It should be noted that the critical current value of the drying fan is used to characterize the maximum current value at which the drying fan is operated. When the real-time current is any value between 95% and 99.5% of the critical current value, it is determined that the real-time current of the drying fan is close to the critical current value of the drying fan. The arbitrary value between 95% and 99.5% in this example can be the set value of the clothing processing equipment when it leaves the factory, or it can be a value flexibly selected by the user, or it can also be a value independently set by the control system of the clothing processing equipment according to the blockage of the clothing processing drum and the drying air duct.

[0092] Among them, the control system of the clothing processing equipment can adopt the control system in the existing technology, as long as the control system can control various starting functions of the double-drum washing and drying machine, and the specific structure type and specific control logic of the control system will not be repeated here.

[0093] That is to say, different drying modes have different set speed values ​​according to different drying modes selected by the user, and different structural designs and blocking conditions in the drying air duct. That is, each time the clothes processing device dries the clothes, the drying fan has a different set speed value.

[0094] In step S300, the instantaneous power of the drying fan can be determined by multiplying the real-time current of the drying fan during operation by the input voltage value of the whole machine of the laundry processing device, and then the real-time air volume of the drying fan is approximately calculated based on the instantaneous power.

[0095] When the filter components in the drying duct are partially blocked, the resistance in the drying duct will increase, and the static pressure of the drying fan is positively correlated with the resistance. The air volume of the drying fan is approximately inversely proportional to the static pressure, and approximately proportional to the dynamic pressure. Therefore, it can be seen that the instantaneous power of the drying fan is positively correlated with the air volume of the drying fan, and the instantaneous power of the drying fan can be detected and obtained through the control system. Therefore, during the drying process, the change in the air volume of the drying fan can be approximately calculated by the instantaneous power of the drying fan.

[0096] In some embodiments, the corresponding relationship between the instantaneous power of the drying fan and the implemented air volume is:

[0097] P=Q×p / (3600×η0×η1)

[0098] Where P is the instantaneous power of the drying fan; Q is the real-time air volume of the drying fan (m 2 / h); p is the total pressure of the drying fan, which is equal to the sum of the static pressure and the dynamic pressure of the drying fan; η0 is the internal efficiency of the drying fan; η1 is the mechanical efficiency.

[0099] Static pressure refers to the pressure generated by a fluid in a static state. Figure 2 The relationship between the static pressure and air volume of the drying fan at different drying fan speeds is confirmed by the schematic diagram shown in the figure.

[0100] The dynamic pressure of the drying fan refers to the pressure difference generated by the drying fan when it is working. When the drying fan is working, the air volume is generated by the rotation of its impeller, and then the pressure difference is generated. The dynamic pressure of the drying fan is related to the impeller speed and impeller diameter of the drying fan. It should be noted that the dynamic pressure of the drying fan can be determined according to the technical solutions in the prior art, which will not be repeated here.

[0101] The internal efficiency η0 of the drying fan refers to the ratio of the effective power of the drying fan to the input power, and its value range is between 0.75 and 0.85. The internal efficiency η0 of the drying fan is related to the size and design of the drying fan. The internal efficiency η0 of the drying fan with a larger size is 0.85, and the internal efficiency η0 of the drying fan with a smaller size is 0.75.

[0102] The value range of the mechanical efficiency η1 is 0.85 to 1, wherein, when the drying fan and the motor driving the drying fan are directly connected (for example, the two are keyed), the value of the mechanical efficiency η1 is 1. When the drying fan and the motor driving the drying fan are connected by a coupling, the value of the mechanical efficiency η1 is 0.95 to 0.98. When the drying fan and the motor driving the drying fan are connected by a V-belt, the value of the mechanical efficiency η1 is 0.9 to 0.95. And, when the drying fan and the motor driving the drying fan are driven by a flat belt, the value of the mechanical efficiency η1 is 0.85.

[0103] In step S400, when the control system of the twin-drum washer-dryer determines that the real-time air volume of the drying fan is less than the designed air volume, the current rotation speed of the drying fan is compensated according to the first compensation rule to obtain the compensated rotation speed of the drying fan.

[0104] The first compensation rule is to increase the rotation speed of the drying fan at a uniform acceleration, and the design air volume is the maximum air volume value allowed to be generated by the drying fan in the current state.

[0105] In some embodiments, the first compensation rule may be to increase the rotation speed of the drying fan by increasing the current rotation speed by a predetermined rotation speed each time, thereby obtaining a compensated rotation speed of the drying fan.

[0106] The predetermined rotation speed may range from 45 rpm / min to 75 rpm / min.

[0107] In step S500, as the speed of the drying fan continues to increase, the compensation speed of the drying fan obtained each time is compared with the set speed value. When the compensation speed obtained at any time is close to the set speed value, the compensation speed of the drying fan at this time is determined as the final speed of the drying fan, and then the operation of the drying fan is controlled at the final speed.

[0108] It should be noted that when the compensation speed is any value between 95% and 100% of the set speed value, it indicates that the compensation speed is close to the set speed value.

[0109] In this embodiment, when any one of the clothes processing drums is performing a drying operation or two clothes processing drums are performing a drying operation at the same time, the set speed value of the drying fan in this state is first determined, and then, when there is drying airflow resistance in the drying air duct under the above state, the speed of the drying fan in the corresponding state can be compensated by the first compensation rule, so as to continuously adjust the speed of the drying fan during the drying process, so that the air volume in the drying fan is stabilized in the maximum value range for drying operations, effectively avoiding the problem of reduced drying efficiency in the later stage of drying, thereby ensuring and improving the drying efficiency of clothes and the user experience.

[0110] like Figure 4 As shown, in some embodiments, the set speed value of the drying fan can be determined by the following method:

[0111] The user selects a corresponding drying method, for example, using the upper laundry processing drum alone to dry the laundry; or using the lower laundry processing drum alone to dry the laundry; or, when there are a large number of laundry pieces, using both the upper laundry processing drum and the lower laundry processing drum to dry the laundry at the same time.

[0112] Then, according to the structural design and blocking condition of the corresponding drying air duct, the speed of the drying fan is controlled to gradually increase at each set time interval based on the second compensation rule. Specifically, the real-time speed of the drying fan at this time can be obtained based on a speed detection device such as a speed sensor set in the clothing processing device, and then the speed of the drying fan is increased by increasing the first set speed to the real-time speed each time. The value range of the first set speed can be between 55rpm / min and 65rpm / min.

[0113] In a preferred example, the first set rotation speed may be 60 rpm / min.

[0114] In the process of the drying fan speed gradually increasing, the real-time power of the drying fan is obtained at each set time interval. The value range of the predetermined time can be flexibly set according to the blockage situation in the drying air duct, and is not specifically limited here. Among them, the real-time power of the drying fan can be determined by obtaining the real-time current during the operation of the drying fan and according to the mapping relationship between the real-time current and the power. The power of the drying fan is the product of the current and the voltage when the drying fan is running, wherein the voltage is the input voltage value of the whole machine when the clothing processing device is running.

[0115] Finally, according to the relationship between the real-time power of the drying fan and the maximum power of the drying fan, the set speed value of the drying fan in this state is determined.

[0116] In one example, the drying mode includes at least an upper drum drying mode, a lower drum drying mode and a double drum drying mode.

[0117] When the drying method selected by the user is the upper drum drying mode, the first real-time current during the drying fan speed increase process is determined. When the first real-time current is close to the critical current value of the drying fan, the set speed value of the drying fan at this time is determined as the first set speed value.

[0118] When the drying method selected by the user is the lower drum drying mode, the second real-time current during the drying fan speed increase process is determined. When the second real-time current is close to the critical current value of the drying fan, the set speed value of the drying fan at this time is determined as the second set speed value.

[0119] When the drying mode selected by the user is the double-drum drying mode, the third real-time current during the drying fan speed increase process is determined. When the third real-time current is close to the critical current value of the drying fan, the set speed value of the drying fan at this time is determined as the third set speed value.

[0120] The first real-time current, the second real-time current and the third real-time current are used to map the real-time power of the drying fan, and the first set speed value, the second set speed value and the third set speed value are used to characterize the maximum power of the drying fan.

[0121] It should be noted that the critical current value of the drying fan is used to characterize the maximum current value when the drying fan is running. Among them, when the real-time current is any value between 95% and 100% of the critical current value, it is determined that the real-time current of the drying fan is close to the critical current value of the drying fan. The arbitrary value between 95% and 100% in this example can be the set value of the clothing processing equipment when it leaves the factory, or it can be a value flexibly selected by the user, or it can also be a value independently set by the control system of the clothing processing equipment according to the blockage of the clothing processing drum and the drying air duct.

[0122] That is to say, different drying modes have different set speed values ​​according to different drying modes selected by the user, and different structural designs and blocking conditions in the drying air duct. That is, each time the clothes processing device dries the clothes, the drying fan has a different set speed value.

[0123] like Figure 3 As shown, in some embodiments, the current speed of the drying fan is compensated based on the first compensation rule to obtain the compensated speed of the drying fan, and according to the relationship between the compensated speed and the set speed value, the process of controlling the operation of the drying fan may include:

[0124] The rotation speed of the drying fan is increased by increasing the second set rotation speed to the current rotation speed each time to obtain a compensation rotation speed of the drying fan, wherein the value range of the second set rotation speed is 50 rpm / min to 70 rpm / min.

[0125] As the speed of the drying fan continues to increase, the compensation speed of the drying fan obtained each time is compared with the set speed value. When the compensation speed obtained at any time is close to the set speed value, the compensation speed of the drying fan at this time is determined as the final speed of the drying fan, and then the operation of the drying fan is controlled at the final speed.

[0126] It should be noted that when the compensation speed is any value between 95% and 100% of the set speed value, it indicates that the compensation speed is close to the set speed value.

[0127] In a preferred example, the value of the second set speed may be 60 rpm / min, that is, the current speed of the drying fan is increased by 60 rpm / min to obtain the first compensation speed.

[0128] When the first compensation speed is still lower than the set speed value, the first compensation speed is further increased by 6060rpm / min to obtain the second compensation speed, and then the second compensation speed is compared with the set speed value.

[0129] After N (N≥1) speed compensations, until the Nth compensation speed approaches the set speed value, the Nth compensation speed is determined to be the final speed, and the final speed is used to control the operation of the drying fan.

[0130] Among them, when the drying method selected by the user is the upper drum drying mode and the final speed is close to the first set speed value, the final speed at this time is defined as the first speed, and the drying fan is controlled to operate at the first speed.

[0131] When the drying mode selected by the user is the lower drum drying mode and the final speed is close to the second set speed value, the final speed at this time is defined as the second speed, and the drying fan is controlled to operate at the second speed.

[0132] When the drying mode selected by the user is the double-drum drying mode and the final speed is close to the third set speed value, the final speed at this time is defined as the third speed, and the drying fan is controlled to operate at the third speed.

[0133] In the above example, for different drying modes, the instantaneous power of the drying fan is detected during the speed-up process of the drying fan, and the real-time air volume of the drying fan is approximately calculated based on the instantaneous power. When the real-time air volume is less than the design air volume, the current speed of the drying fan is increased by 60 revolutions, and then the instantaneous power of the drying fan is redetected and the air volume of the drying fan is calculated until the air volume meets the requirements, so that the air volume of the drying fan is close to or equal to the maximum air volume value and operates within the range, thereby avoiding a decrease in drying efficiency in the later stage of drying, thereby ensuring and improving the drying efficiency of clothes and the user experience.

[0134] An exemplary embodiment of the present invention further provides an electronic device, which includes a processor (not shown in the figure) and a memory (not shown in the figure) connected to the processor. The memory is used to store one or more computer executable instructions. The computer executable instructions can be called by the processor and execute the air volume adjustment method of the clothing processing device in the above embodiment.

[0135] An exemplary embodiment of the present invention further provides a clothes processing device, which is controlled by the air volume adjustment method of the clothes processing device of any of the above embodiments, or has an electronic device of the above embodiments.

[0136] The clothes processing device of this example includes two clothes processing drums and a drying air duct arranged in an upper and lower position, wherein the drying air duct is connected to the two clothes processing drums respectively, that is, the two clothes processing drums share a drying air duct, and a drying fan is arranged in the drying air duct, and through the rotation of the drying fan, a suitable air volume is provided for the two clothes processing drums or any one of the clothes processing drums to meet the drying air volume requirements of the corresponding clothes processing drums. In the air volume adjustment method of the clothes processing device, the drying mode selected by the user is selected and determined; then, based on the drying mode selected by the user and the structural design of the drying air duct, the set speed value of the drying fan corresponding to any one of the clothes processing drums or the two clothes processing drums is determined when the drying operation is performed; then, the instantaneous power of the drying fan during operation is obtained, and the real-time air volume of the drying fan is approximately calculated based on the instantaneous power; when the real-time air volume of the drying fan is less than the design air volume, the current speed of the drying fan is compensated based on the first compensation rule to obtain the compensation speed of the drying fan; finally, according to the relationship between the compensation speed and the set speed value, the operation of the drying fan is controlled. That is, when any one of the clothes processing drums is performing a drying operation or two clothes processing drums are performing a drying operation at the same time, the set speed value of the drying fan in this state is first determined, and then, when there is drying airflow resistance in the drying air duct under the above state, the speed of the drying fan in the corresponding state can be compensated by the first compensation rule, so as to continuously adjust the speed of the drying fan during the drying process, so that the air volume in the drying fan is stabilized in the maximum value range for drying operations, effectively avoiding the problem of reduced drying efficiency in the later stage of drying, thereby ensuring and improving the drying efficiency of clothes and the user experience.

[0137] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0138] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A method for adjusting the air volume of a clothes processing device, characterized in that: The clothes processing device comprises two clothes processing drums arranged up and down and a drying air duct, the drying air duct is connected to the two clothes processing drums respectively, a drying fan is arranged in the drying air duct, and the air volume adjustment method comprises: Determine the drying method selected by the user; Based on the drying mode and the structural design and blocking condition of the drying air duct, determining a set speed value of the drying fan corresponding to when any one of the clothes processing drums and / or both of the clothes processing drums perform a drying operation; Acquire the instantaneous power of the drying fan during operation, and calculate the real-time air volume of the drying fan based on the instantaneous power; When the real-time air volume is less than the designed air volume, the current rotation speed of the drying fan is compensated based on a first compensation rule to obtain a compensated rotation speed of the drying fan; According to the magnitude relationship between the compensation speed and the set speed value, the operation of the drying fan is controlled; Among them, the drying mode includes a single-drum drying mode and a multi-drum drying mode. In the single-drum drying mode, one of the clothing processing drums in the drying air duct is connected to form a drying circuit. In the multi-drum drying mode, the drying air duct is connected to both of the clothing processing drums to form corresponding drying circuits. The first compensation rule is to increase the rotation speed of the drying fan according to uniform acceleration.

2. The air volume adjustment method of a clothes processing device according to claim 1, characterized in that: The determining of the set speed value of the drying fan corresponding to any one of the clothes processing drums and / or both of the clothes processing drums when performing a drying operation based on the drying mode and the structural design and blocking condition of the drying air duct comprises: Based on the second compensation rule, the rotation speed of the drying fan is controlled to gradually increase at each set time interval, and the real-time power of the drying fan after each set time interval is obtained; The set speed value of the drying fan is determined according to the relationship between the real-time power and the maximum power of the drying fan.

3. The air volume adjustment method of a clothes processing device according to claim 2, characterized in that: The step of controlling the rotation speed of the drying fan to gradually increase at set intervals based on the second compensation rule includes: Obtaining the real-time rotation speed of the drying fan; The rotation speed of the drying fan is increased by increasing the first set rotation speed to the real-time rotation speed each time.

4. The air volume adjustment method of a clothes processing device according to claim 3, characterized in that: The first set speed has a value range of 55 rpm / min to 65 rpm / min.

5. The air volume adjustment method of a clothes processing device according to claim 3, characterized in that: The obtaining of the real-time power of the drying fan comprises: Obtaining the real-time current of the drying fan when it rotates; Based on the mapping relationship between the real-time current and the power, the real-time power of the drying fan is determined.

6. The air volume adjustment method of a clothes processing device according to claim 5, characterized in that: The single-drum drying mode includes an upper-drum drying mode and a lower-drum drying mode, and the multi-drum drying mode includes a double-drum drying mode; Determining the set speed value of the drying fan according to the magnitude relationship between the real-time power and the maximum power of the drying fan includes: When the drying mode selected by the user is the upper drum drying mode, determining the first real-time current during the drying fan speed increase process, and when the first real-time current is close to the critical current value of the drying fan, determining the set speed value of the drying fan at this time as the first set speed value; or When the drying mode selected by the user is the lower drum drying mode, determining the second real-time current during the drying fan speed increase process, and when the second real-time current is close to the critical current value of the drying fan, determining the set speed value of the drying fan at this time as the second set speed value; or When the drying mode selected by the user is the double-drum drying mode, determining the third real-time current during the drying fan speed increase process, and when the third real-time current is close to the critical current value of the drying fan, determining the set speed value of the drying fan at this time as the third set speed value; Among them, the first real-time current, the second real-time current and the third real-time current are used to map the real-time power of the drying fan, and the first set speed value, the second set speed value and the third set speed value are used to characterize the maximum power of the drying fan.

7. The air volume adjustment method of a clothes processing device according to claim 6, characterized in that: The calculating the real-time air volume of the drying fan based on the instantaneous power includes: The real-time air volume of the drying fan is calculated based on the following corresponding relationship: P=Q×p / (3600×η0×η1) Wherein, P is the real-time power of the drying fan; Q is the real-time air volume (m 2 / h); p is the total pressure of the drying fan, which is equal to the sum of the static pressure and the dynamic pressure of the drying fan; η0 is the internal efficiency of the drying fan; η1 is the mechanical efficiency.

8. The air volume adjustment method of a clothes processing device according to claim 7, characterized in that: The compensating the current rotation speed of the drying fan based on the first compensation rule to obtain the compensated rotation speed of the drying fan includes: The rotation speed of the drying fan is increased in a manner of increasing the second set rotation speed to the current rotation speed each time, so as to obtain the compensation rotation speed of the drying fan.

9. The air volume adjustment method of a clothes processing device according to claim 8, characterized in that: The second set speed has a value range of 50 rpm / min to 70 rpm / min.

10. The air volume adjustment method of a clothes processing device according to claim 8, characterized in that: The step of controlling the operation of the drying fan according to the magnitude relationship between the compensation speed and the set speed value comprises: When the compensation speed is close to the set speed value, the final speed of the drying fan is determined, and the operation of the drying fan is controlled at the final speed.

11. The air volume adjustment method of a clothes processing device according to claim 10, characterized in that: When the compensation speed approaches the set speed value, determining the final speed of the drying fan, and controlling the drying fan to operate at the final speed, comprises: When the drying mode selected by the user is the upper drum drying mode and the final speed is close to the first set speed value, the final speed at this time is defined as the first speed, and the drying fan is controlled to operate at the first speed; or When the drying mode selected by the user is the lower drum drying mode and the final speed is close to the second set speed value, the final speed at this time is defined as the second speed, and the drying fan is controlled to operate at the second speed; or When the drying mode selected by the user is the double-drum drying mode and the final speed is close to the third set speed value, the final speed at this time is defined as the third speed, and the drying fan is controlled to operate at the third speed.

12. An electronic device, characterized in that: The electronic device comprises: a memory for storing one or more computer executable instructions; A processor, configured to call and execute computer executable instructions in the memory, thereby implementing the method according to any one of claims 1 to 11.

13. A clothes processing device, characterized in that: The method according to any one of claims 1 to 11 is used for control, or the electronic device according to claim 12 is provided.

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