CN115679661A

CN115679661A - Clothes dryer and control method thereof

Info

Publication number: CN115679661A
Application number: CN202211296565.XA
Authority: CN
Inventors: 毕建军; 李达; 丁兆波; 王增强
Original assignee: Hisense Refrigerator Co Ltd
Current assignee: Hisense Refrigerator Co Ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-02-03

Abstract

The invention discloses a clothes dryer and a control method thereof, relates to the technical field of household appliances, and aims to solve the technical problem that the clothes dryer cannot accurately judge whether clothes are dried. The clothes dryer includes: the device comprises a box body, a roller, a detector and a controller. Wherein, the drum is positioned in the box body and used for loading clothes; the detector is used for detecting the resistance value of the clothes and the operation time of the clothes dryer; the controller is coupled to the detector and configured to: acquiring the resistance value change rate of the clothes in the process of running the clothes drying program; determining the loading capacity of the roller according to the resistance value change rate; determining the stop time of the clothes dryer according to the load; and when the clothes dryer runs to the stop time, controlling the clothes dryer to stop running.

Description

Clothes dryer and control method thereof

Technical Field

The application technical field relates to the technical field of household appliances, in particular to a clothes dryer and a control method thereof.

Background

With the improvement of urban aesthetic requirements and the continuous increase of high-rise buildings, the space for outdoor clothes drying of many buildings is increasingly limited. In addition, in areas with long-term humidity, serious air pollution and windy and sandy wind, people are inconvenient to air clothes.

Therefore, the dryer takes place. The clothes dryer dries the clothes in the drum through the circulating hot air, for example, a heating device and a fan can be arranged in the clothes dryer, and the heated air flow is driven by the fan to enter the drum so as to dry the clothes.

The existing technology for judging whether clothes are dried is realized through the resistance value of the clothes, however, the clothes dryer is sometimes interfered by an external circuit in the working process, so that the overall resistance value detected by the resistance value detection circuit is deviated, and the clothes dryer cannot accurately judge whether the clothes are dried. Therefore, how to accurately judge whether the clothes in the clothes dryer are dried becomes a problem which needs to be solved urgently.

Disclosure of Invention

The embodiment of the invention provides a clothes dryer and a control method thereof, which are used for solving the technical problem that the clothes dryer cannot accurately judge whether clothes are dried.

In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:

in a first aspect, an embodiment of the present application provides a clothes dryer, including: the device comprises a box body, a roller, a detector and a controller, wherein the roller is positioned in the box body and used for loading clothes; the detector is used for detecting the resistance value of the clothes and the operation time of the clothes dryer; the controller is coupled to the detector and configured to: acquiring the resistance value change rate of the clothes in the process of running the clothes drying program; determining the loading capacity of the roller according to the resistance value change rate; determining the stop time of the clothes dryer according to the loading amount; and when the clothes dryer runs to the stop time, controlling the clothes dryer to stop running.

The technical scheme provided by the embodiment of the application at least has the following beneficial effects: during the operation of the drying course, the load of the drum is determined by obtaining the resistance change rate, it can be understood that the resistance change rate reflects the dryness of the laundry to some extent, that is, the load of the drum can be determined by the dryness of the laundry. And determining the stop time of the clothes dryer according to the loading capacity. The time required for drying the clothes is constant because the load of the clothes is constant. So, this application is judged whether the clothing is dried through the resistance rate of change. Therefore, even if external circuit interference causes the overall deviation of the clothes resistance value detected by the resistance value detection circuit, the change rule of the resistance value is not changed. Therefore, whether the clothes are dried or not can be accurately judged, and therefore the experience effect of a user is improved.

In some embodiments, the controller performs the obtaining of the resistance change rate, and is specifically configured to: acquiring resistance values of the clothes at the current moment and the previous moment, and calculating the resistance value change rate according to the acquired resistance values of the clothes at the current moment and the previous moment; wherein the resistance value change rate is the difference between the resistance value of the laundry at the current moment and the resistance value of the laundry at the previous moment divided by the resistance value of the laundry at the previous moment.

In some embodiments, the controller performs said determining the load capacity of the drum according to said rate of change of resistance, specifically configured to: determining a first operation time, wherein the first operation time is an operated time of the clothes dryer when the resistance value change rate reaches a first preset value; if the first running time is greater than or equal to a first preset time and less than or equal to a second preset time, determining that the loading capacity is a first loading capacity, and the first loading capacity is half load; if the first running time is greater than or equal to a third preset time and less than or equal to a fourth preset time, determining that the loading capacity is a second loading capacity, and the second loading capacity is a full load; if the first running time is less than the first preset time, or if the first running time is greater than the second preset time and less than the third preset time, determining that the loading capacity is a third loading capacity; the first preset time is less than the second preset time, the second preset time is less than the third preset time, and the third preset time is less than the fourth preset time.

In some embodiments, the controller performs said determining a stop time of said dryer according to said load amount, specifically configured to: if the loading capacity is half load, determining the stop time to be fifth preset time; if the loading amount is full load, determining the stopping time to be sixth preset time; wherein the fifth preset time is less than the sixth preset time.

In some embodiments, the controller performs said determining a stop time of said dryer according to said load amount, specifically configured to: and if the loading capacity is the third loading capacity, determining the stop time according to the resistance value change rate.

In some embodiments, the controller executes the determining the stop time according to the resistance value change rate, and is specifically configured to: determining a second operation time which is a difference between the already operated time of the dryer and the first operation time when the resistance value change rate reaches a second preset value, wherein the second preset value is smaller than the first preset value; and determining the stop time according to the first running time and the second running time.

In some embodiments, the controller executes the determining the stop time according to the first running time and the second running time, and is specifically configured to: the stop time is the sum of the first running time, the second running time and K times of the second running time; and K is a constant.

In some embodiments, the controller is further configured to: and after the first operation time, controlling the clothes dryer to stop operating when the resistance value change rate reaches a third preset value, wherein the third preset value is smaller than the second preset value.

In a second aspect, embodiments of the present application provide a control method of a dryer, including: acquiring the resistance value change rate of the clothes in the process of running the clothes drying program; determining the loading capacity of the roller according to the resistance value change rate; determining the stop time of the clothes dryer according to the loading amount; and when the clothes dryer runs to the stop time, controlling the clothes dryer to stop running.

In some embodiments, obtaining the resistance change rate specifically includes: acquiring resistance values of the clothes at the current moment and the previous moment, and calculating the resistance value change rate according to the acquired resistance values of the clothes at the current moment and the previous moment; wherein the resistance value change rate is a difference between the resistance value of the laundry at the present time and the resistance value of the laundry at the previous time divided by the resistance value of the laundry at the previous time.

In a third aspect, embodiments of the present application provide a computer-readable storage medium having stored therein instructions that, when run on any one of the apparatuses described above, cause the apparatus to perform any one of the methods of controlling a dryer described above.

In a fourth aspect, an embodiment of the present application provides a chip, including: a processor and a memory; the memory is used for storing computer execution instructions, the processor is connected with the memory, and when the chip runs, the processor executes the computer execution instructions stored in the memory, so that the chip executes the control method of any clothes dryer.

In a fifth aspect, embodiments of the present application provide a computer program product containing instructions that, when run on any one of the above apparatuses, cause the apparatus to perform any one of the above clothes dryer control methods.

It should be noted that all or part of the computer instructions may be stored on the computer readable storage medium. The computer readable storage medium may be packaged with or separately from a processor of the controller, which is not limited in this application.

For the beneficial effects described in the second aspect to the fifth aspect in the present application, reference may be made to the beneficial effect analysis of the first aspect, which is not described herein again.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention.

FIG. 1 is a schematic structural diagram of a clothes dryer according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of an electrical connection structure of a clothes dryer according to an embodiment of the present application;

fig. 3 is a second schematic structural diagram of a clothes dryer provided in the embodiment of the present application;

FIG. 4 is a schematic diagram of a display interface of a display of a clothes dryer provided in an embodiment of the present application;

fig. 5 is a schematic view of a display interface displayed by a terminal device according to an embodiment of the present disclosure;

FIG. 6 is a flowchart of a method for controlling a clothes dryer according to an embodiment of the present disclosure;

FIG. 7 is a second flowchart of a control method for a clothes dryer according to an embodiment of the present application;

fig. 8 is a third flowchart of a control method of a clothes dryer according to an embodiment of the present application;

FIG. 9 is a graph showing the relationship between the resistivity of the clothes and the water yield according to the embodiment of the present application;

FIG. 10 is a fourth flowchart of a control method for a clothes dryer according to an embodiment of the present disclosure;

FIG. 11 is a fifth flowchart of a control method for a clothes dryer according to an embodiment of the present disclosure;

fig. 12 is a sixth flowchart of a control method of a clothes dryer according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that all directional indicators (such as up, down, left, right, front, and back \8230;) in the embodiments of the present application are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicators are correspondingly changed.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art. In addition, when a pipeline is described, the terms "connected" and "connecting" are used in this application to mean conducting. The specific meaning is to be understood in conjunction with the context.

In the embodiments of the present application, the words "exemplary" or "such as" are used herein to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present relevant concepts in a concrete fashion.

For convenience of understanding, in the embodiments of the present application, first, the operation principle of the clothes dryer is described, in which when the clothes dryer is in operation, the heater heats the air in the circulation system, the air in the circulation system is at a high temperature after a certain period of time, the clothes in the drum are evaporated into the circulation air at a high temperature to form a high-temperature and high-humidity circulation air, the high-temperature and high-humidity circulation air may precipitate condensed water when passing through the condenser with a low surface temperature, and finally the circulation air may precipitate all water in the clothes at the condenser to complete drying of the clothes.

Because the resistance value of the clothes generally decreases along with the gradual reduction of the humidity of the clothes, the dryness and humidity of the clothes are generally judged by judging the resistance value of the clothes in the related art, however, the clothes dryer is sometimes interfered by an external circuit in the working process, so that the resistance value detected by the resistance value detection circuit is wholly deviated, and the clothes dryer cannot accurately judge whether the clothes are dried.

In view of this, embodiments of the present application provide a dryer, a controller of which determines a load amount of a drum by acquiring a resistance value change rate of laundry, and determines a stop time of the dryer according to the load amount. It can be understood that when the load of the laundry is constant, the time required for drying the laundry is constant. This application judges whether the clothing is dried through the resistance change rate, so, causes the whole skew of clothing resistance that resistance detection circuit detected in the interference of external circuit, but the resistance change rate (change law) does not change. Therefore, whether the clothes are dried or not can be accurately judged, and the use experience of a user is improved.

Fig. 1 is a schematic structural diagram of a clothes dryer provided in an embodiment of the present application. As shown in fig. 1, the dryer 100 may include: a cabinet 01, a drum 02, a detector 03 (not shown in fig. 1), and a controller 04 (not shown in fig. 1).

The cabinet 01 serves to protect electrical components inside the dryer 100, and to close a path between the inside and the outside of the dryer 100, thereby preventing damage to the electrical components. A drum 02 is provided in the cabinet 01 for loading laundry to be dried.

In addition, a detector 03 is electrically connected to the controller 04, and the detector 03 serves to detect a resistance value of the laundry and an operated time of the dryer 100.

In one possible implementation, the detector 03 may include: a resistance value detector for detecting a resistance value of the laundry. In which the resistance value detector may detect the resistance value of the laundry in real time through the bimetal 05 provided on the drum front support of the dryer 100, as shown in fig. 1.

In another possible implementation manner, the detector 03 may further include: a timer for detecting an operated time of the dryer 100. For example, the timer may start timing when the dryer 100 is operated, and thus, the operated time of the dryer 100 may be acquired.

In some embodiments, the controller 04 refers to a device that can generate an operation control signal instructing the dryer 100 to execute a control instruction according to the instruction operation code and the timing signal. Illustratively, the controller 04 may be a Central Processing Unit (CPU), a Network Processor (NP), a Digital Signal Processor (DSP), a Programmable Logic Device (PLD), a microprocessor, a microcontroller, or any combination thereof. The controller 04 may also be other devices with processing functions, such as a circuit, a device, or a software module, which is not limited in any way by the embodiments of the present application.

For example, after the user selects and starts the drying program, the controller 04 may control the operation of the electrical components to dry the laundry in the drum 02 to meet the user's requirement.

Fig. 2 shows a schematic diagram of a circuit connection structure of a clothes dryer provided in an embodiment of the present application, and as shown in fig. 2, the controller 04 may be electrically connected to the detector 03, and the controller 04 may be configured to: acquiring the resistance value change rate of the clothes in the process of running the clothes drying program; determining the load amount of the drum 02 according to the resistance value change rate of the laundry; determining a stop time of the dryer 100 according to the load amount; when the dryer 100 is operated to the stop time, the dryer 100 is controlled to stop operating.

In the process of operating the clothes drying program, the loading capacity of the drum 02 is determined by obtaining the resistance value change rate of the clothes, and it can be understood that the resistance value change rate can reflect the dryness and humidity of the clothes to a certain extent, that is, the loading capacity of the drum 02 can be determined by the dryness and humidity of the clothes. Then, the stop time of the dryer 100 is determined according to the load amount, since the time required for drying the laundry is constant when the load amount of the laundry is constant. So, this application judges whether the clothing is dried through the resistance change rate, so, leads to the whole skew of clothing resistance that resistance detection circuit detected even make external circuit interference, but the change law of resistance does not change. Therefore, whether the clothes are dried or not can be accurately judged, and therefore the experience effect of a user is improved.

In some embodiments, as also shown in fig. 1, the dryer 100 may further include: the door body 06 is arranged on the box body 06, the door body 06 faces the roller 02, and the underwear of the roller 02 can be taken and put through opening and closing of the door body 06.

In some embodiments, as shown in fig. 1, the cabinet 01 of the clothes dryer 100 is sequentially provided with the drum 02, a front air duct 20 (a side close to the door 06), a bottom air duct 30, and a rear air duct 40 (a side far from the door 06) according to a flowing direction of air in the drum 02, so as to form a circulation air duct for circulating air.

Fig. 3 shows a schematic structural diagram of a clothes dryer provided in an embodiment of the present application, and in some embodiments, as shown in fig. 3, the clothes dryer 100 may further include: a condenser 07 and a heater 08, the condenser 07 may be disposed in the bottom air duct 30, and the heater 08 may be disposed in the rear air duct 40. The heater 08 is used to heat the circulating gas. The heater 08 may be a heating assembly having a heating tube or element.

In this way, when the high-temperature circulating gas heated by the heater 08 passes through the drum 02, the moisture in the clothes in the drum 02 is evaporated into the circulating gas at high temperature to form high-temperature and high-humidity circulating gas, the high-temperature and high-humidity circulating gas passes through the front air duct 20 and the bottom air duct 30 to reach the condenser 07 at the bottom of the clothes dryer 100, the high-temperature and high-humidity circulating gas can precipitate condensed water under the action of the condenser 07, the circulating gas enters the rear air duct 40, and is heated by the heater 08 on the rear air duct 40, and the circulating gas is converted into high-temperature circulating gas again to complete the circulating loop.

In some embodiments, as also shown in fig. 3, the dryer 100 may further include: the fan 09 is a machine for increasing the air pressure in the air duct and discharging high-pressure air, and the fan 09 may be a ventilator, a blower, a variable frequency fan, or the like, depending on the input mechanical energy to increase the air pressure and discharge the air. The fan 09 may be disposed at an air inlet of the drum 02 (i.e., an air inlet side of the heater 08) as shown in fig. 3, so that hot air heated by heat generated from the air passing through the condenser is blown into the drum 02 and the air may be circulated in the circulation duct in a directed direction.

For example, as shown in fig. 3, the fan 09 may include: a motor 91 and an impeller 92, wherein the motor 91 can be electrically connected with the controller 04, the impeller 92 is connected with a rotating shaft of the motor 91, the impeller 92 is arranged in the rear air duct, and when the motor 91 is started, the impeller 92 rotates to blow air to the heater 08, so as to improve the fluidity of the circulating gas.

In some embodiments, the dryer 100 further includes: and the water storage tank 10 can be arranged in the bottom air duct 30 and is arranged below the condenser 07 and used for receiving condensed water dripped by the condenser 07.

In some embodiments, a water valve may be disposed below the water storage tank 10, and the water valve is used to control the outflow of the condensed water in the water storage tank.

In some embodiments, the dryer 100 may further include: a temperature sensor refers to a sensor that can detect temperature and can convert the detected temperature value into a usable output signal. For example, the temperature sensor may be configured to detect a temperature of air in the drum 02 and send a detected temperature value to the controller 04, and the controller 04 controls each electrical component to perform corresponding operations according to a drying temperature detected by the temperature sensor.

In some embodiments, the dryer 100 may further include: a display, which may be a liquid crystal display, an organic light-emitting diode (OLED) display. The particular type, size, resolution, etc. of the display is not limiting, and those skilled in the art will appreciate that the display may be modified in performance and configuration as desired.

In some embodiments, the display may be used to display a control panel of the dryer 100 or operational information of the dryer 100. For example, as shown in fig. 4, the dryer 100 displays operation information such as an operation time period of the dryer 100, a drying program being operated, and the like through a display.

In some embodiments, the dryer 100 may further include: and the voice prompt device is used for playing the voice prompt information according to the program. The content of the voice prompt message may be preset by a manufacturer of the clothes dryer 100, or may be set by a user through a human-computer interaction device. For example, when the controller 04 acquires that the laundry meets the drying end condition, the controller 04 may control the voice prompt device to play a prompt message such as "drying complete".

In some embodiments, the dryer 100 may further include: a human-machine interaction device for enabling interaction between a user and the dryer 100. The human-computer interaction device may comprise one or more of a physical key or a touch display panel. For example, the user may set a drying program that the dryer 100 needs to operate through the human-computer interaction device.

In some embodiments, the dryer 100 may further include: a communication device, which is a component for communicating with an external apparatus or a server according to various communication protocol types. For example: the communication device may include at least one of a wireless communication technology (Wi-Fi) module, a bluetooth module, a wired ethernet module, a Near Field Communication (NFC) module, and other network communication protocol chips or near field communication protocol chips, and an infrared receiver. The communication device may be used for communicating with other devices or communication networks (e.g., ethernet, radio Access Network (RAN), wireless Local Area Network (WLAN), etc.).

In some embodiments, the controller 04 may communicate with a terminal device used by a user through a communication means. For example, as shown in fig. 5, the terminal device used by the user is a mobile phone, and the controller 04 receives a clothes drying program selected by the user on the mobile phone through the communication device, and further controls each electrical component of the clothes dryer 100 to start executing the clothes drying program.

In some embodiments, the dryer 100 may further include: the power supply supplies power to the dryer 100 from the external power source under the control of the controller 04.

The following detailed description of the embodiments of the present application is made with reference to the accompanying drawings.

An embodiment of the present application further provides a control method of a dryer, as shown in fig. 6, the method includes the steps of:

s101, in the process of running a clothes drying program, the controller obtains the resistance value change rate of clothes.

Wherein in a possible implementation the start of the dryer program may be triggered by a user, i.e. the user controls the dryer program start.

For example, the user may control the dryer program to start by operating the display panel of the touch dryer.

For example, the user may also establish a communication connection with the dryer through the mobile device, so as to control the starting of the dryer program on the mobile device, which is not specifically limited in this application.

As shown in fig. 7, the specific implementation of the controller acquiring the resistance value change rate of the laundry may include the following steps:

and S1011, the controller acquires resistance values of the clothes at the current moment and the previous moment.

Wherein, in some embodiments, the controller may acquire the resistance value of the laundry every preset time interval by the detector, and the controller may store a correspondence relationship between the operation time and the resistance value of the laundry in the memory.

Wherein, the relationship between the operation time and the resistance value of the laundry may be in the form of a correspondence table. For example, the correspondence table may be as shown in table 1 below.

TABLE 1

Wherein, in table 1, the controller obtains the resistance value of the laundry by the detector every interval 1S, and table 1 is only an exemplary illustration and is not a specific limitation of the correspondence table described in the embodiment of the present application.

Alternatively, the controller may also acquire the resistance value of the laundry at intervals of 2S, 3S, or 4S, etc., by the detector and store the correspondence in the memory.

In another possible implementation, the controller acquires the resistance value of the laundry by the detector every predetermined millisecond or predetermined minute, and the correspondence table may be a correspondence with the resistance value of the laundry in units of milliseconds or minutes.

In other embodiments, the controller may also acquire the resistance value of the laundry in real time through the detector and store the acquired resistance value of the laundry in the memory.

And S1012, when the resistance value change rate is calculated according to the acquired resistance values of the clothes at the current moment and the previous moment, the controller calculates the resistance value change rate according to the acquired real-time resistance value information.

Wherein, the resistance value change rate is the difference between the resistance value of the clothes at the current moment and the resistance value of the clothes at the previous moment divided by the resistance value of the clothes at the previous moment.

For example, in table 1, if the current time is 00.

And S102, determining the loading capacity of the roller by the controller according to the resistance value change rate. Wherein the load amount refers to an amount of the drum accommodating the laundry. It can be understood that, in the case where the initial moisture content is the same, the more the laundry, the longer it takes for the moisture content of the laundry to reach the a value, so that the load amount of the drum can be discriminated.

In some embodiments, the drum load can be distinguished into three states, namely half load, full load, and other loads. In one possible implementation, as shown in fig. 8, the determination of the drum load can be achieved by the following steps.

And S1021, the controller determines a first operation time, wherein the first operation time is the operation time of the clothes dryer when the resistance value change rate reaches a first preset value.

The resistivity and the water content of the clothes are found to have the following characteristics through tests: when the water content is higher than a certain value A (about 20%), the resistivity is almost unchanged along with the increase of the water content; when the water content is lower than the value A, the resistivity rapidly decreases and increases as the water content decreases. When the water content is less than a certain value B (about 4%), the resistivity hardly changes with a decrease in the water content.

According to the characteristics of the resistivity and the moisture content of the clothes, a function curve of the resistivity and the drying time of the clothes in the drying process of the clothes has two obvious mutation points A and B, the points A and B can be confirmed through the resistivity, namely the mutation points A and B on the function curve can be confirmed in the operation process of the clothes dryer, and exemplarily, if the current resistivity is more than a preset value before 10 minutes and lasts for more than 8 minutes, the point is considered as the mutation point A. For example, if the current resistivity is greater than the preset value for more than 8 minutes before 10 minutes, the point is considered to be the mutation point B. It should be noted that the 10 minutes and 8 minutes are only exemplary descriptions and do not limit the embodiments of the present application.

FIG. 9 is a schematic diagram showing the relationship between the resistivity of the laundry and the water yield (i.e. 1-water content) according to the embodiment of the present application, as shown in FIG. 9, where M and N points are provided, and between 0 and M points is the state of the resistivity when the water content of the laundry in the clothes dryer is higher than the A value; the resistivity state when the water content of the clothes in the clothes dryer is higher than the B value and lower than the A value is between M and N points, and the state when the water content of the clothes in the clothes dryer is lower than the B value is after the N points. It is understood that when the resistivity abruptly and rapidly increases at the points a and B, the rate of change in resistance also increases.

Therefore, the first preset value is the resistance change rate of the M point, such that the first operation time is the time when the humidity of the laundry in the dryer reaches the a value.

S1022, if the first running time is greater than or equal to the first preset time and less than or equal to the second preset time, determining the load capacity as the first load capacity, where the first load capacity is half load.

Wherein the first preset time and the second preset time may be preset by a system, and the half load may be half of a maximum capacity loaded by the dryer.

For example, the first preset time and the second preset time may be determined by the following method: and measuring the time when the moisture content of the clothes in the clothes dryer reaches the value A under the half-load state of the clothes dryer, wherein the time is taken as the standard time when the moisture content of the clothes reaches the value A under the half-load state, and the first preset time and the second preset time can be respectively increased or decreased by a certain value according to the half-load standard time.

For example, the half load standard time may be 5 minutes, the first preset time may be set to 4 minutes, and the second preset time may be 6 minutes. And if the first running time is greater than or equal to 4 minutes and less than or equal to 6 minutes, determining the loading capacity as half load.

And S1023, if the first running time is greater than or equal to a third preset time and less than or equal to a fourth preset time, determining the load capacity as a second load capacity, wherein the second load capacity is full load.

The first preset time is less than the second preset time, the second preset time is less than the third preset time, and the third preset time is less than the fourth preset time.

In addition, the third preset time and the fourth preset time may be preset by the system. The full load may be the maximum capacity that the dryer can accommodate. For example, the determination of the third preset time and the fourth preset time may be determined by the following method: and measuring the time when the moisture content of the clothes in the clothes dryer reaches the value A under the state that the clothes dryer is fully loaded (namely the maximum accommodating amount allowed by loading the clothes dryer), wherein the time is taken as the standard time when the moisture content of the clothes reaches the value A under the state that the clothes dryer is fully loaded, and the standard time of the full load is between the third preset time and the fourth preset time.

For example, the standard time of the full load may be 9 minutes, the third preset time may be 8 minutes, and the fourth preset time may be 10 minutes. If the first operating time is equal to or greater than 8 minutes and equal to or less than 10 minutes, the load amount is determined to be full.

And S1024, if the first running time is less than the first preset time, or if the first running time is greater than the second preset time and less than a third preset time, determining the load capacity as a third load capacity. That is, for example, if the first preset time is 4 minutes, the second preset time is 6 minutes, and the third preset time is 8 minutes, and if the first operation time is less than 4 minutes, or the first operation time is greater than 6 minutes and less than 8 minutes, the load is determined as the third load.

In other embodiments, the drum load can be further divided into four states, i.e., a first load, a second load, a third load, and a full load.

In one possible implementation, the determination of the load of the drum can be achieved by the following judgments.

1. The controller determines a first operation time, which is an already-operated time of the dryer when the resistance change rate reaches a first preset value.

2. And if the first operation time is less than a first preset time, determining the load capacity as a first load.

3. And if the first running time is greater than or equal to the first preset time and is less than the second preset time, determining the load capacity as a second load.

4. And if the first running time is greater than or equal to the second preset time and is less than the third preset time, determining the load capacity as a third load.

5. And if the first running time is greater than or equal to a third preset time length, determining the load capacity as full load.

The first preset time length, the second preset time length and the third preset time length can be preset by a system.

For example, the first preset time period may be determined by the following method: measuring the time length when the moisture content of the clothes in the clothes dryer reaches the value A under the state that the clothes dryer is loaded by one fourth (namely one fourth of the maximum accommodating capacity allowed by the loaded clothes dryer), wherein the time length is used as a first standard time length when the moisture content of the clothes reaches the value A under the state that the clothes dryer is loaded by one fourth, and the first standard time length can be used as a first preset time length.

Similarly, the second preset time period may be determined by the following method: and measuring the time length when the moisture content of the clothes in the clothes dryer reaches the value A under the state that the clothes dryer is loaded by one half (namely, the half of the maximum accommodating capacity allowed by the loaded clothes dryer), wherein the time length is used as a second standard time length when the moisture content of the clothes reaches the value A under the state that the clothes dryer is loaded by one half, and the second standard time length can be used as a second preset time length.

The third preset time period may be determined by the following method: and measuring the time length when the moisture content of the clothes in the clothes dryer reaches the value A under the state that the clothes dryer is three-fourths in load (namely three-fourths of the maximum accommodating capacity allowed by the clothes dryer), wherein the time length is used as a third standard time length when the moisture content of the clothes reaches the value A when the clothes dryer is three-fourths in load, and the third standard time length can be used as a third preset time length.

It can be understood that the loading capacity of the drum can be further divided into two, five, six, etc. states, which are not described in detail in the embodiments of the present application.

S103, determining the stop time of the clothes dryer by the controller according to the loading amount.

In one possible implementation, as shown in fig. 10, the controller may be classified into the following cases according to the determination of the stop time of the dryer:

and S1031, if the loading amount is half load, the controller determines that the stop time is a fifth preset time.

And S1032, if the loading amount is full, the controller determines that the stop time is the sixth preset time.

The fifth preset time is less than the sixth preset time, both the fifth preset time and the sixth preset time can be preset by a system, the fifth preset time and the sixth preset time are in one-to-one correspondence with half load and full load, and the correspondence table can be stored in the controller.

In addition, the fifth preset time may be determined by: and measuring standard time when the moisture content of the clothes in the clothes dryer reaches 0% in a half-load state of the clothes dryer, wherein the fifth preset time can be the standard time. In order to ensure that the laundry is completely dried, the fifth preset time may also be greater than the standard time.

Likewise, the sixth preset time may be determined by: and measuring standard time when the moisture content of the clothes in the clothes dryer reaches 0% in a full-load state of the clothes dryer, wherein the sixth preset time can be the standard time, and can be longer than the standard time in order to ensure that the clothes are completely dried.

And when the load amount is the third load amount, the stop time of the dryer may be determined according to the resistance value change rate.

And S1033, if the loading amount is the third loading amount, determining the stop time by the controller according to the resistance value change rate.

It is understood that the third loading includes: the first operation time is less than the first preset time, and the first operation time is greater than the second preset time and less than the third preset time.

In order to ensure the drying effect of the dryer, in some embodiments, as shown in fig. 11, the step S1033 may be embodied as the following steps:

s10331, the controller determines a second operation time, which is a difference between the operated time of the dryer and the first operation time when the resistance value change rate reaches a second preset value.

Wherein, the second preset value is smaller than the first preset value. It is understood that the second preset value may be a resistance value change rate of the N point, and thus, the operated time is a time when the humidity of the laundry in the dryer reaches the B value. The second operation time is a time for the humidity of the laundry in the dryer to be changed from the a value to the B value.

S10332, the controller determines a stop time according to the first running time and the second running time.

That is, the controller determines the stop time of the dryer according to the sum of the first operation time and the second operation time.

It can be understood that when the laundry is in the same dryer, the time required for the moisture content to go from a to B is T1, and the time required for the moisture content to go from B to 0% is T2. Through experimental tests of T1 and T2 in the drying process of laundry with different weights, it is found that T2 and T1 substantially conform to T2= T1 × K, where K is a constant, and thus, the controller may determine the drying time T2 required to continue to operate according to the measured value of T1.

The stop time can thus be the sum of the first operating time (0-M operating times), the second operating time (M-N operating times) and K times the second operating time (operating time with a water content of 0%).

In other embodiments, as shown in fig. 12, after the first operation time, the control method of the dryer may be further embodied as the steps of:

s10333, after the first operation time, when the resistance value change rate reaches a third preset value, the controller controls the dryer to stop operating. The third preset value is less than the second preset value.

It is understood that the third preset value may be a resistance change rate of the laundry after the moisture content of the laundry reaches 0%. That is, when the moisture content of the laundry acquired by the controller reaches 0%, the controller determines that the dryer reaches the stop time.

And S104, when the clothes dryer runs to the stop time, the controller controls the clothes dryer to stop running.

Illustratively, several machines get a stop time of 11:00, when the clothes dryer runs to 11.

In the clothes dryer of the embodiment of the application, during the operation of the drying program, the loading capacity of the drum is determined by obtaining the resistance value change rate of the clothes, and it can be understood that the resistance value change rate reflects the dryness and humidity of the clothes to a certain extent, that is, the loading capacity of the drum can be determined by the dryness and humidity of the clothes. And then, determining the stop time of the clothes dryer according to the load, namely, when the load of the clothes is constant, the time required by drying the clothes is constant. So, this application judges whether the clothing is dried through resistance change rate and operating duration, so, leads to the whole skew of clothing resistance that resistance detection circuit detected but the law of change of resistance not changing even making external circuit interference. Therefore, whether the clothes are dried or not can be accurately judged, and therefore the experience effect of a user is improved.

It can be seen that the foregoing describes the solution provided by the embodiments of the present application primarily from a methodological perspective. In order to implement the functions, the embodiments of the present application provide corresponding hardware structures and/or software modules for performing the respective functions. Those of skill in the art will readily appreciate that the various illustrative modules and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

In the embodiment of the present application, the controller may be divided into function modules according to the method example, for example, each function module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. Optionally, the division of the modules in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

The embodiment of the application also provides a computer-readable storage medium, which comprises computer-executable instructions, and when the computer-readable storage medium runs on a computer, the computer is enabled to execute any one of the control methods of the clothes dryer provided by the embodiment.

Embodiments of the present application further provide a computer program product containing instructions executed by a computer, which when run on a computer, causes the computer to execute any one of the methods for controlling a clothes dryer provided in the above embodiments.

In the above embodiments, all or part of the implementation may be realized by software, hardware, firmware, or any combination thereof. When implemented using a software program, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer-executable instructions. The processes or functions according to the embodiments of the present application are generated in whole or in part when the computer-executable instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer executable instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer executable instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). Computer-readable storage media can be any available media that can be accessed by a computer or can comprise one or more data storage devices, such as servers, data centers, and the like, that can be integrated with the media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.

While the present application has been described in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from a review of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Although the present application has been described in conjunction with specific features and embodiments thereof, it will be evident that various modifications and combinations can be made thereto without departing from the spirit and scope of the application. Accordingly, the specification and figures are merely exemplary of the present application as defined in the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the present application. It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope disclosed in the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A clothes dryer, characterized by comprising:

a box body;

a drum located within the cabinet for loading laundry;

a detector for detecting a resistance value of the laundry and a running time of the dryer;

a controller electrically connected to the detector and configured to:

acquiring a resistance value change rate of the laundry in the course of operating a drying program;

determining the loading capacity of the roller according to the resistance value change rate;

determining the stop time of the clothes dryer according to the loading amount;

and when the clothes dryer runs to the stop time, controlling the clothes dryer to stop running.

2. The clothes dryer according to claim 1, wherein the controller performs the obtaining of the resistance change rate, and is specifically configured to:

acquiring resistance values of the clothes at the current moment and the previous moment, and calculating the resistance value change rate according to the acquired resistance values of the clothes at the current moment and the previous moment;

wherein the resistance value change rate is the difference between the resistance value of the laundry at the current moment and the resistance value of the laundry at the previous moment divided by the resistance value of the laundry at the previous moment.

3. The clothes dryer according to claim 2, wherein the controller performs the determining of the load amount of the drum according to the resistance change rate, specifically configured to:

determining a first operation time, wherein the first operation time is an operated time of the clothes dryer when the resistance value change rate reaches a first preset value;

if the first running time is more than or equal to a first preset time and less than or equal to a second preset time, determining the loading capacity as a first loading capacity, wherein the first loading capacity is half load;

if the first running time is greater than or equal to a third preset time and less than or equal to a fourth preset time, determining that the loading capacity is a second loading capacity, and the second loading capacity is a full load;

if the first running time is less than the first preset time, or if the first running time is greater than the second preset time and less than the third preset time, determining that the loading capacity is a third loading capacity;

4. The clothes dryer of claim 3, wherein said controller performs said determining a stop time of said clothes dryer according to said load amount, and is specifically configured to:

if the loading capacity is half load, determining that the stop time is fifth preset time; if the loading capacity is full load, determining that the stopping time is sixth preset time;

and the fifth preset time is less than the sixth preset time.

5. The clothes dryer of claim 3, wherein the controller performs the determining of the stop time of the clothes dryer based on the load amount, and is specifically configured to:

and if the loading capacity is the third loading capacity, determining the stop time according to the resistance value change rate.

6. The clothes dryer of claim 5, wherein the controller performs the determining the stop time based on the rate of change of the resistance value, and is specifically configured to:

determining a second operation time which is a difference between the already operated time of the dryer and the first operation time when the resistance value change rate reaches a second preset value, wherein the second preset value is smaller than the first preset value;

and determining the stop time according to the first running time and the second running time.

7. The clothes dryer of claim 6, wherein said controller performs said determining said stop time based on said first operating time and said second operating time, and is specifically configured to:

the stop time is the sum of the first running time, the second running time and K times of the second running time; and K is a constant.

8. The clothes dryer of claim 6, wherein the controller is further configured to:

and after the first operation time, controlling the clothes dryer to stop operating when the resistance value change rate reaches a third preset value, wherein the third preset value is smaller than the second preset value.

9. A control method of a dryer, characterized in that the method comprises:

determining the stop time of the clothes dryer according to the loading amount;

10. The control method according to claim 9, wherein the obtaining the resistance value change rate specifically includes: acquiring resistance values of the clothes at the current time and the previous time, and calculating the resistance value change rate according to the acquired resistance values of the clothes at the current time and the previous time; wherein the resistance value change rate is a difference between the resistance value of the laundry at the present time and the resistance value of the laundry at the previous time divided by the resistance value of the laundry at the previous time.