Clothes drying equipment control method and clothes drying equipment

Abstract

The invention relates to the technical field of clothes drying equipment, in particular to a control method of clothes drying equipment and the clothes drying equipment, and aims to solve the problem that in existing clothes drying equipment, due to failure of a sensor, clothes are prone to being over-dried or insufficient in drying. In order to achieve the purpose, the control method of the clothes drying equipment comprises the following steps that the weighing energy difference of clothes in an inner barrel of a washing machine is obtained, and the weighing energy difference is associated with a rotating motor of the washing machine; continuously obtaining a preset number of weighing energy differences of clothes in an inner barrel of the washing machine; and selectively controlling the running state of the washing machine according to the size relationship between the preset number of times of weighing energy difference and a preset threshold range. According to the invention, the logic control of the clothes drying equipment is realized by utilizing the change of the energy difference of multiple times of weighing, and the problem of over-drying or insufficient drying of clothes caused by the failure of a sensor in the clothes drying equipment is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of clothes drying equipment, and in particular provides a clothes drying equipment control method and clothes drying equipment. Background Art

[0002] When a washing machine with a clothes drying function is drying or air-drying clothes, the logic for judging whether the clothes are dry is generally through a temperature sensor or a humidity sensor.

[0003] Among them, the temperature sensor mainly monitors the temperature of the clothes or airflow in the inner drum of the washing machine and the temperature change, and then determines whether the clothes are dry. For example, when the temperature sensor detects that the airflow temperature in the inner drum reaches a fixed value, the washing machine system determines that the clothes are dry. However, when the temperature sensor fails or there is an abnormality, the clothes are prone to over-drying or insufficient drying, resulting in damage to the clothes.

[0004] The process of using humidity sensors to judge whether clothes are dry is as follows: when the humidity sensor detects that the relative humidity of the clothes or airflow in the inner drum is less than or equal to a fixed value, the washing machine system determines that the clothes are dry. However, the installation process of the humidity sensor is relatively complicated and the cost is high, which increases the manufacturing cost of the washing machine. Summary of the invention

[0005] The present invention aims to solve the above technical problem, namely, the problem that the clothes are easily over-dried or insufficiently dried due to sensor failure in the existing clothes drying equipment.

[0006] To this end, a first aspect of the present invention provides a control method for a clothes drying device, wherein the clothes drying device at least includes a washing machine, and the control method for the clothes drying device includes the following steps: Obtaining a weighing energy difference of the clothes in the inner drum of the washing machine, wherein the weighing energy difference is associated with a rotating motor of the washing machine; Continuously obtaining a predetermined number of weighing energy differences of the clothes in the inner drum of the washing machine; The operation state of the washing machine is selectively controlled according to the magnitude relationship between the weighing energy difference of the predetermined number of times and a preset threshold range.

[0007] In the preferred technical solution of the control method of the above-mentioned clothes drying device, the step of "obtaining the weighing energy difference of the clothes in the inner drum of the washing machine, wherein the weighing energy difference is associated with the rotating motor of the washing machine" includes: After the user end of the washing machine starts a clothes drying care program, determining the initial weighing energy of the clothes based on the state of the rotating motor of the washing machine; After a predetermined time interval, the next weighing energy is obtained based on the state of the rotating motor of the washing machine; The weighing energy difference is determined according to the difference between the initial weighing energy and the next weighing energy.

[0008] In the preferred technical solution of the control method of the above-mentioned clothes drying device, the step of "continuously obtaining the weighing energy difference of the clothes in the inner drum of the washing machine for a predetermined number of times" includes: After each predetermined time interval, obtaining the weighing energy of the clothes again; Based on the next weighing energy and the once again weighing energy, the weighing energy difference is continuously obtained a predetermined number of times.

[0009] In a preferred technical solution of the above-mentioned method for controlling the clothes drying device, the predetermined number of times includes at least ten groups.

[0010] In the preferred technical solution of the control method of the above-mentioned clothes drying device, the step of "selectively controlling the operating state of the washing machine according to the magnitude relationship between the weighing energy difference of the predetermined number of times and the preset threshold range" includes: The weighed energy differences of at least ten groups are compared with a preset threshold range, and the operating state of the washing machine is selectively controlled according to the comparison result.

[0011] In the preferred technical solution of the control method of the above-mentioned clothes drying device, the step of "comparing the weighing energy differences of at least ten groups with a preset threshold range, and selectively controlling the operating state of the washing machine according to the comparison result" includes: When any one of the at least ten groups of weighing energy differences is outside the preset threshold range, the washing machine is controlled to continue to perform the drying care program.

[0012] In the preferred technical solution of the control method of the above-mentioned clothes drying device, the step of "when any one of the at least ten groups of weighing energy differences is outside the preset threshold range, controlling the washing machine to continue to execute the clothes drying care program" includes: Continue to continuously obtain at least ten groups of the weighing energy differences, and compare the at least ten groups of the weighing energy differences with the preset threshold range, and then determine whether the washing machine continues to execute the drying care program based on the comparison result.

[0013] In the preferred technical solution of the control method of the above-mentioned clothes drying device, the step of "comparing the weighing energy differences of at least ten groups with a preset threshold range, and selectively controlling the operating state of the washing machine according to the comparison result" also includes: When the weighing energy differences of at least ten groups are all within the preset threshold range, the washing machine is controlled to stop running the clothes drying care program.

[0014] In a preferred technical solution of the control method of the above-mentioned clothes drying device, the predetermined number of times is adjusted according to the size of the inner drum of the washing machine and / or the size of the rotating motor in the washing machine and / or the type of clothes.

[0015] A second aspect of the present invention provides a clothes drying device, comprising a processor and a memory, wherein the memory is used to store computer executable instructions, and the computer executable instructions can be called and executed by the processor to implement the control method of the clothes drying device described in the first aspect.

[0016] In the case of adopting the above technical solution, in the control method and the drying device of the present invention, after determining that the washing machine is in a predetermined condition, the weighing energy difference of the clothes in the inner drum of the washing machine is obtained, and the initial weighing energy difference is associated with the rotating motor of the washing machine, and then the weighing energy difference of the clothes in the inner drum of the washing machine is continuously obtained for a predetermined number of times; finally, according to the relationship between the predetermined number of weighing energy differences and the preset threshold range, the operation state of the washing machine is selectively controlled. For example, when the weighing energy differences of the predetermined number of times are all within the preset threshold range, it indicates that the clothes in the inner drum are dry, and the washing machine's drying care program can be stopped at this time; and when any one of the predetermined number of weighing energy differences is outside the preset threshold range, it indicates that the clothes in the inner drum are not dry, and the washing machine needs to continue to execute the drying care program at this time. Therefore, the change of multiple weighing energy differences is used to realize the logical control of the drying device, which effectively solves the problem of over-drying or insufficient drying of clothes caused by sensor failure in the drying device, thereby improving the user experience of the drying device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0018] Figure 1 The present invention is a flowchart of a method for controlling a clothes drying device according to an exemplary embodiment.

[0019] Figure 2 The present invention is a process diagram of logic drying judgment of a method for controlling a clothes drying device according to an exemplary embodiment.

[0020] Figure 3 The figure is a judgment logic diagram of a control method of a clothes drying device according to an exemplary embodiment.

[0021] Figure 4 The figure is a schematic structural diagram of a clothes drying device according to an exemplary embodiment.

[0022] Description of reference numerals:

[0023] 101. Processor; 102. Memory. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. 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.

[0025] 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.

[0026] An exemplary embodiment of the present invention provides a control method for a clothes drying device, wherein the clothes drying device may include but is not limited to a washing machine with a clothes drying function. The washing machine may be a drum washing machine or a pulsator washing machine, or the washing machine may also be other types of fully automatic washing machines with a clothes drying function.

[0027] Reference Figure 1 As shown, the control method of the clothes drying device includes the following steps:

[0028] Step S100: obtaining the weighing energy difference of the clothes in the inner drum of the washing machine, where the weighing energy difference is associated with the rotating motor of the washing machine.

[0029] Step S200: continuously obtaining the weighing energy difference of the clothes in the inner drum of the washing machine for a predetermined number of times.

[0030] Step S300: selectively controlling the operating state of the washing machine according to the relationship between the weighing energy difference of a predetermined number of times and a preset threshold range.

[0031] Among them, when the washing machine is executing the drying care program, the following relationship exists between the power P, torque T and speed n of the rotating motor of the washing machine: when the power P of the rotating motor is constant, the torque T of the rotating motor is inversely proportional to the speed n; when the torque T of the rotating motor is constant, the power P of the rotating motor is proportional to the speed n; and when the speed n of the rotating motor is constant, the power P of the rotating motor is proportional to the torque T. That is to say, T = KP / n, where the unit of torque T is Nm; the unit of power P is KW; the unit of speed n is r / min; K is a coefficient, which is not specifically limited here.

[0032] Therefore, when the rotation speed n of the rotating motor is constant, the power P of the rotating motor of the washing machine (such as a drum washing machine, etc.) is proportional to its torque T. Among them, the rotation torque T of the rotating motor is positively correlated with the weight of the clothes in the inner drum, that is, the heavier the weight of the clothes, the greater the torque T of the rotating motor. Correspondingly, therefore, the power P of the rotating motor is also positively correlated with the weight of the clothes in the inner drum, that is, the heavier the weight of the clothes, the greater the power P of the rotating motor.

[0033] It should be noted that the measurement of the torque of the rotating motor requires the use of corresponding components such as torque sensors for measurement. However, in this case, it is necessary to add a torque sensor to the rotating motor of the washing machine to convert the weight of the clothes in the inner drum into an equal amount, which will increase the production cost of the washing machine.

[0034] In this example, the power P of the rotating motor of the washing machine can be directly displayed through the control module of the washing machine or digitally displayed through the display module, that is, the user can intuitively observe the power P of the rotating motor when performing the drying care program. Based on this, when the washing machine performs the drying care program, whether the washing machine is in a fixed speed state or a variable speed state, the energy E required for a single weighing process, that is, the weighing energy, can be calculated by the power P of the rotating motor, and then the weight of the clothes in the inner drum can be expressed by the weighing energy E of the rotating motor. Therefore, without increasing the manufacturing cost of the washing machine, the weight change of the clothes in the inner drum can be determined by using the change of the weighing energy E of the rotating motor.

[0035] Therefore, in step S100, the weighing energy E of the rotating motor is defined as the initial weighing energy E0 of the clothes in the inner drum, that is, the initial weighing energy is associated with the rotating motor of the washing machine.

[0036] Among them, after the user end of the washing machine starts the dry clothes care program, the initial weighing energy E0 of the clothes is determined based on the weighing energy E of the rotating motor of the washing machine. Then, after a predetermined interval, the weight of the clothes in the inner drum is reduced, and the control module of the washing machine again obtains the next weighing energy E1 according to the state of the rotating motor. Finally, according to the difference between the initial weighing energy E0 and the next weighing energy E1, the weighing energy difference △En (n≥1) of the clothes is determined, that is, △E1=E0-E1.

[0037] It should be noted that the predetermined time in step S100 can be an experience value of the user during use, or a theoretical value set when the washing machine leaves the factory. In a specific example, the predetermined time can be any value between 5S and 30S. Of course, the set value of the predetermined time can also be flexibly set according to the size of the inner drum, the type of clothes, and the size of the motor in the washing machine.

[0038] In step S200, at every predetermined time interval, the weighing energy E2 of the clothes is obtained again, and at this time, △E2=E1-E1. Thereafter, the weight of the clothes is obtained based on the weighing energy E of the rotating motor at every predetermined time interval until the weighing energy difference △En of the predetermined number of times is obtained. That is, △En can be any value among △E1, △E2, △E3, △E4, etc. △En.

[0039] In one example, the predetermined number of times includes at least five consecutive acquisitions to improve the accuracy of logically judging whether the clothes are dry.

[0040] In step S300, the operation state of the washing machine is selectively controlled according to the relationship between the weighing energy difference △En of the predetermined number of times obtained in step S200 and the preset threshold range ±Em. The value range of the preset threshold range Em can be a theoretical value set when the washing machine leaves the factory or an empirical value set after multiple uses, and the specific value of the preset threshold range Em is not specifically limited here.

[0041] Reference Figure 2 As shown, Figure 2 The black dots in the figure are the weighing energy differences △En of any number of times. As the drying care program continues, the moisture content of the clothes gradually decreases. When the weighing energy differences △En of the predetermined number of times are all within the preset threshold range ±Em, that is, -Em<{△E1, △E2, △E3, △E4······△En}<+Em, the control module of the washing machine determines that the clothes in the inner drum are dry, and at this time, the washing machine can be controlled to stop running the drying care program. When any of the weighing energy differences △En of the predetermined number of times is outside the preset threshold range ±Em, the control module of the washing machine determines that the clothes in the inner drum are not dry, and at this time, the washing machine can be controlled to continue running the drying care program and perform the next weighing energy difference △En collection process until the weighing energy differences △En of the predetermined number of times are all within the preset threshold range ±Em.

[0042] In this embodiment, when the predetermined number of weighing energy differences △En are all within the preset threshold range ±Em, it indicates that the clothes in the inner drum are dry, and the washing machine's drying care program can be stopped at this time; and when any one of the predetermined number of weighing energy differences △En is outside the preset threshold range ±Em, it indicates that the clothes in the inner drum are not dry, and the washing machine needs to continue to perform the drying care program. Thus, the change of multiple weighing energy differences △En is used to realize the logical control of the drying device, which effectively solves the problem of over-drying or insufficient drying of clothes caused by sensor failure in the drying device, thereby improving the user experience of the drying device.

[0043] At the same time, the clothes drying device of this embodiment does not use any sensors for dryness determination logic, which does not increase the manufacturing cost of the clothes drying device and reduces the installation process of the clothes drying device. On the other hand, the clothes dryness determination logic process based on the change of multiple weighing energy differences in this embodiment is also better than the dryness determination logic process based on a single sensor threshold.

[0044] like Figure 3 As shown, in some embodiments, the predetermined number of continuously obtained weighing energy differences △En includes at least ten groups, that is, when -Em<{△E1, △E2, △E3, △E4······△E10}<+Em, the control module of the washing machine determines that the clothes in the inner drum are dry, and at this time, the washing machine can be controlled to stop running the drying care program. When any one of the at least ten groups of weighing energy differences △E10 is outside the preset threshold range ±Em, the control module of the washing machine determines that the clothes in the inner drum are not dry, and at this time, the washing machine can be controlled to continue running the drying care program.

[0045] In this embodiment, through at least ten groups of changes in the weighing energy difference △En, the clothes in the inner drum can be accurately logically judged to be dry, which effectively improves the accuracy of the clothes dryness judgment, thereby improving the user experience.

[0046] like Figure 3 As shown, in some embodiments, at least ten groups of weighing energy differences △En are compared with a preset threshold range ±Em, and the operating state of the washing machine is selectively controlled according to the comparison result.

[0047] Among them, when the weighing energy difference △En of any group of at least ten groups of weighing energy differences △En is outside the preset threshold range ±Em, that is, △En≤-Em, or △En≥+Em, it indicates that the clothes in the inner drum of the washing machine are not dry. At this time, the control module of the washing machine can be used to control the washing machine to continue running the drying care program.

[0048] When the washing machine continues to run the drying care program, the next at least ten groups of weighing energy differences △En are continuously obtained, and the at least ten groups of weighing energy differences △En obtained this time are continuously compared with the preset threshold range, and then, according to the comparison result, it is determined whether the washing machine continues to execute the drying care program. Among them, when all the at least ten groups of weighing energy differences △En are within the preset threshold range ±Em, that is, when -Em<{△E11, △E12, △E13, △E14······△E20}<+Em, it indicates that the clothes are dry and the drying care program can be stopped; and when any one of the at least ten groups of weighing energy differences △En is outside the preset threshold range ±Em, the drying care program continues to be executed until it is determined to be dry.

[0049] When at least twenty groups of weighing energy differences △En are all within the preset threshold range ±Em, that is, when -Em<{△E1, △E2, △E3, △E4······△E10}<+Em, it indicates that the clothes are dry and the drying care program can be stopped.

[0050] In the above embodiment, based on the changing trend of the weighing energy difference of multiple groups, it can be accurately determined whether the clothes are dry. Compared with the prior art that uses temperature sensors or humidity sensors to perform the logical dryness judgment process of clothes, the clothes drying device of this example does not need to install other sensors (such as temperature sensors, humidity sensors or temperature and humidity sensors, etc.), and uses the change of the weighing energy E of the rotating motor to realize the logical dryness judgment process of clothes, which effectively solves the problem of over-drying or insufficient drying of clothes caused by sensor failure.

[0051] In the clothes drying device of this embodiment, since no sensor for dryness determination logic is used, the manufacturing cost of the clothes drying device is not increased, and the installation process of the clothes drying device is also reduced. In addition, the logic process for determining the dryness of clothes based on the change of multiple weighing energy differences △En is also better than the logic process for determining the dryness of clothes based on a single sensor threshold, and is conducive to realizing the modular design of the clothes drying device.

[0052] In some embodiments, the predetermined number of times can be flexibly adjusted according to the size of the inner drum of the washing machine. That is to say, when the inner drum is larger, that is, the capacity of the washing machine is larger, the predetermined number of times can be set to ten groups or more. When the inner drum is smaller, that is, the capacity of the washing machine is smaller, the predetermined number of times can be set to ten groups or less. For example, when the capacity of the washing machine is 10Kg, the predetermined number of times can be set to fifteen groups or twenty groups. For another example, when the capacity of the washing machine is 5Kg, the predetermined number of times can be set to five groups or ten groups. For another example, when the capacity of the washing machine is 7Kg, the predetermined number of times can be set to ten groups or fifteen groups.

[0053] Alternatively, the predetermined number of times can also be flexibly adjusted according to the size of the inner drum rotating motor of the washing machine. It should be noted that the size of the inner drum rotating motor, i.e., the power thereof, is positively correlated with the capacity of the washing machine, that is, the adjustment of the predetermined number of times according to the size of the inner drum rotating motor can refer to the above description of the adjustment of the predetermined number of times according to the size of the inner drum of the washing machine, which will not be repeated here.

[0054] Alternatively, the preset number of times can be flexibly adjusted according to the type of clothing. Now, taking a 10Kg capacity washing machine as an example, when the inner drum contains hydrophilic clothing (such as sweaters, pure cotton clothing, etc.), the preset number of times can be set to ten groups or more, for example, fifteen groups or twenty groups, and when the inner drum contains hydrophobic clothing (jackets or quick-drying clothing), the preset number of times can be set to ten groups or less, for example, five groups or ten groups.

[0055] In this embodiment, the specific value of the predetermined number of times can be flexibly adjusted according to the size of the inner drum of the washing machine, the size of the rotating motor in the washing machine, or the type of clothing. The value can be set manually by the user, or it can be adjusted autonomously by the control module of the washing machine, thereby effectively improving the intelligent operation and intelligence level of the drying equipment.

[0056] like Figure 4 As shown, an exemplary embodiment of the present invention provides a clothes drying device. The clothes drying device includes a processor 101 and a memory 102 connected to the processor 101. The memory 102 is used to store computer executable instructions. The computer executable instructions can be called by the processor 101 and execute the control method of the clothes drying device in the above embodiment.

[0057] In the above scheme, after determining that the washing machine is in a predetermined condition, the weighing energy difference △En of the clothes in the inner drum of the washing machine is obtained, and the initial weighing energy difference △En is associated with the rotating motor of the washing machine. Then, the weighing energy difference △En of the clothes in the inner drum of the washing machine is obtained for a predetermined number of times continuously; finally, according to the size relationship between the weighing energy difference △En of the predetermined number of times and the preset threshold range ±Em, the operation state of the washing machine is selectively controlled. For example, when the weighing energy difference △En of the predetermined number of times is within the preset threshold range ±Em, it indicates that the clothes in the inner drum are dry, and the washing machine's drying care program can be stopped at this time; and when any one of the weighing energy differences △En of the predetermined number of times is outside the preset threshold range ±Em, it indicates that the clothes in the inner drum are not dry, and the washing machine needs to continue to execute the drying care program at this time. Therefore, the change of multiple weighing energy differences △En is used to realize the logical control of the drying device, which effectively solves the problem of over-drying or insufficient drying of clothes caused by sensor failure in the drying device, thereby improving the user experience of the drying device.

[0058] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A method for controlling a clothes drying device, wherein the clothes drying device at least comprises a washing machine, characterized in that: The control method of the clothes drying device comprises the following steps: Obtaining a weighing energy difference of the clothes in the inner drum of the washing machine, wherein the weighing energy difference is associated with a rotating motor of the washing machine; Continuously obtaining a predetermined number of weighing energy differences of the clothes in the inner drum of the washing machine; The operation state of the washing machine is selectively controlled according to the magnitude relationship between the weighing energy difference of the predetermined number of times and a preset threshold range.

2. The control method of the clothes drying device according to claim 1, characterized in that: The step of "obtaining a weighing energy difference of the clothes in the inner drum of the washing machine, wherein the weighing energy difference is associated with a rotating motor of the washing machine" comprises: After the user end of the washing machine starts a clothes drying care program, determining the initial weighing energy of the clothes based on the state of the rotating motor of the washing machine; After a predetermined time interval, the next weighing energy is obtained based on the state of the rotating motor of the washing machine; The weighing energy difference is determined according to the difference between the initial weighing energy and the next weighing energy.

3. The control method of the clothes drying device according to claim 2, characterized in that: The step of "continuously obtaining the weighing energy difference of the clothes in the inner drum of the washing machine for a predetermined number of times" comprises: After each predetermined time interval, obtaining the weighing energy of the clothes again; Based on the next weighing energy and the once again weighing energy, the weighing energy difference is continuously obtained a predetermined number of times.

4. The control method of the clothes drying device according to claim 1, characterized in that: The predetermined number of times includes at least ten groups.

5. The control method of the clothes drying device according to claim 3, characterized in that: The step of "selectively controlling the operating state of the washing machine according to the relationship between the weighing energy difference of the predetermined number of times and the preset threshold range" includes: The weighed energy differences of at least ten groups are compared with a preset threshold range, and the operating state of the washing machine is selectively controlled according to the comparison result.

6. The control method of the clothes drying device according to claim 5, characterized in that: The step of "comparing at least ten groups of weighed energy differences with a preset threshold range, and selectively controlling the operating state of the washing machine according to the comparison result" includes: When any one of the at least ten groups of weighing energy differences is outside the preset threshold range, the washing machine is controlled to continue to perform the drying care program.

7. The control method of the clothes drying device according to claim 6, characterized in that: The step of "controlling the washing machine to continue to perform the clothes drying care program when any one of the at least ten groups of weighing energy differences is outside the preset threshold range" includes: Continue to continuously obtain at least ten groups of the weighing energy differences, and compare the at least ten groups of the weighing energy differences with the preset threshold range, and then determine whether the washing machine continues to execute the drying care program based on the comparison result.

8. The control method of the clothes drying device according to claim 5, characterized in that: The step of "comparing at least ten groups of weighed energy differences with a preset threshold range, and selectively controlling the operating state of the washing machine according to the comparison result" also includes: When the weighing energy differences of at least ten groups are all within the preset threshold range, the washing machine is controlled to stop running the clothes drying care program.

9. The control method of a clothes drying device according to any one of claims 1 to 4, characterized in that: The predetermined number of times is adjusted according to the size of the inner drum of the washing machine and / or the size of the rotary motor in the washing machine and / or the type of clothes.

10. A clothes drying device, comprising a processor and a memory, wherein the memory is used to store computer executable instructions, characterized in that: The computer executable instructions can be called and executed by the processor to implement the control method of the clothes drying device according to any one of claims 1 to 9.

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