JP2018510031A - Clothes dryer and control method thereof - Google Patents

Abstract

The present invention provides a clothes dryer and a control method thereof. In a clothes dryer including a drying drum (1) in which a humidity sensor (2) for detecting the humidity of clothes is installed at a clothes inlet and a control method thereof, a detection device (3) is further installed in the drying drum (1) The detection device (3) is installed inside the clothes slot, the detection device (3) is connected to the controller, and detects the resistance value of the surrounding environment of the detection device (3) at every preset time. Installed to transmit resistance to controller. The clothes dryer according to the present application is provided with a detection device (3), and is installed so as to detect a resistance value around the detection device (3) every preset time, and the controller determines each resistance value. Each is compared with a predetermined resistance threshold, and the amount of clothes in the drying drum (1) is determined based on the number of resistance values exceeding the predetermined resistance threshold, and the rotational speed of the drying drum (1) is further determined based on the amount of clothes. Adjust. As a result, in the clothes drying process of the clothes dryer, the problems of wrinkles of clothes and unevenness of the clothes drying effect in the prior art are solved.

Description

  The present patent application relates to the field of clothes drying equipment, for example, a clothes dryer and a control method thereof.

  With the development and progress of science and technology, the use of clothes dryers has become increasingly frequent. It can be said that the clothes dryer refers to an electric product that dries the clothes by immediately evaporating moisture in the clothes after being washed by electric heating. The clothes dryer in the related art has a problem that the clothes dried by the clothes dryer are likely to be wrinkled in the course of use, and the clothes dried by the dryer are likely to be unevenly dried. Unevenness problems are likely to appear.

  Therefore, in the market, there is an urgent need to provide a clothes dryer having good drying uniformity of the clothes and preventing the clothes dried by the clothes dryer from being wrinkled, and a control method thereof.

  In an embodiment of the present invention, there is provided a clothes dryer which has good drying uniformity and is less likely to wrinkle after being dried by the clothes dryer.

  In the embodiment of the present invention, the rotation speed of the drying drum can be adjusted based on the amount of clothes in the drying drum, which solves the problem of uneven drying of the clothes dryer and wrinkles of the clothes in the prior art. Is provided.

  In an embodiment of the present invention, there is further provided a method of controlling the clothes dryer installed to control the clothes dryer, and the clothes drying effect is improved by controlling the clothes dryer by the control method. Can do.

  The following technical aspects are used in the examples of the present invention.

  The clothes dryer includes a drying drum in which a humidity sensor for detecting the humidity value of the clothes is installed at a clothes insertion port, and a detection device is further installed on the drying drum, and the detection device is installed inside the drying drum. Is done.

  The detection device is connected to a controller and installed so as to detect a resistance value of the surrounding environment of the detection device.

  The controller is installed so as to acquire a resistance value every predetermined time within a predetermined time and to control the rotation speed of the drying drum based on the resistance value.

  Preferably, the detection device is installed at an edge of a clothing input port of the drying drum.

  Preferably, the detection device is installed on an upper part of a horizontal axis of symmetry of a plane where the clothes insertion port is located.

  Preferably, the detection device is installed within a range that is deflected by 60 ° to the left or right from a vertical axis of symmetry of the plane in which the clothing inlet is located.

  Preferably, the detection device is a metal electrode pair.

  Further, in the embodiment of the present invention, a control method for the clothes dryer is further disclosed. The control method detects the resistance value of the surrounding environment of the detection device after the drying drum operates at the initial rotation speed. The controller obtains a resistance value every predetermined time within a predetermined time;

  The controller compares each resistance value with a resistance threshold value, determines the amount of clothing in the drying drum based on the number of resistance values exceeding the resistance threshold, and based on the amount of clothing in the drying drum Adjusting the rotational speed of the drying drum.

  Preferably, the controller divides the amount of clothing in the drying drum into at least three levels, each level corresponding to one rotational speed.

  Preferably, the amount of clothing in the drying drum is divided into a small capacity, a medium capacity, and a large capacity.

  When the controller determines that the amount of clothing in the drying drum is small, the controller adjusts the rotational speed of the drying drum to a low rotational speed.

  When the controller determines that the amount of clothing on the drying drum is medium, the controller adjusts the rotation speed of the drying drum to a medium rotation speed.

  When the controller determines that the amount of clothing on the drying drum is large, the controller adjusts the rotational speed of the drying drum to a high rotational speed.

  Preferably, the low rotation speed is 40 to 45 rpm, the medium rotation speed is 50 to 55 rpm, and the high rotation speed is 60 to 65 rpm.

  Preferably, the initial rotation speed is 40 rpm.

  Preferably, the preset time is 0.4 s to 0.6 s.

  In the clothes dryer in the present application, a detection device is installed at a clothing input port of the drying drum, and the detection device is connected to a controller and is installed so as to detect a resistance value in the surrounding environment. The controller acquires resistance values at predetermined times within a predetermined time, compares each resistance value with a resistance threshold value, and calculates the amount of clothing in the drying drum based on the number of resistance values exceeding the resistance threshold value. Determine and adjust the rotational speed of the drying drum based on the amount of clothing in the drying drum. As a result, the same rotational speed is maintained regardless of the amount of clothes in the clothes dryer, so that the problem in the prior art that the clothes are easily wrinkled and the clothes drying effect becomes uneven is solved.

  Using the clothes dryer control method in this application, the clothes dryer controller can adjust the rotation speed of the drying drum based on the amount of clothing in the drying drum, and if there is relatively much clothing in the drying drum, If the rotational speed of the drum is increased and there is relatively little clothing on the drying drum, the rotational speed of the drying drum is reduced. As a result, the effect of drying the clothes becomes uniform and the effect that the clothes are not easily wrinkled is realized.

It is the schematic of the structure of the clothes dryer which concerns on Example 1 of this invention. It is a flowchart of the control method of the clothes dryer which concerns on Example 2 of this invention. It is the schematic of the hardware structure of the apparatus which concerns on the Example of this invention.

  Hereinafter, technical aspects according to examples of the present invention will be further described with reference to the drawings by specific embodiments.

Example 1
In the clothes dryer in the related art, the humidity of the clothes is detected by a humidity sensor installed at the clothes inlet. In the drying process of clothing, the clothing frequently comes into contact with the humidity sensor according to the continuous rotation of the drying drum, and the humidity of the clothing and the resistance value of the clothing are in an inversely proportional relationship. Obtain the humidity of the clothing by detecting. When the humidity of the clothing is high, the resistance value of the clothing detected by the humidity sensor is small, and when the humidity of the clothing is low, the resistance value of the clothing detected by the humidity sensor is large. In the clothes dryer in the related art, the clothes are entangled by the drying drum, and the clothes located on the outside are quickly dried. The problem of unevenness appears.

  In addition, in the clothes dryer in the related art, the amount of clothes on the drying drum also affects the clothes drying effect. If the amount of clothes waiting to be put in the drying drum is relatively large, a wrinkled phenomenon is always generated in the clothes after drying. If the amount of clothes waiting to be put in the drying drum is relatively small, the clothes tend to stick to the inner wall of the drying drum, and thus wrinkles are generated in the clothes. For example, when clothes of 6 kg or more are put into a clothes dryer with a rated drying capacity of 8 kg and dried, especially when most of the clothes put in are cotton fiber materials, wrinkle marks in the clothes are not easily spread. When clothes of 3 kg or less are thrown in and dried, the clothes stick to the inner wall of the drying drum during the drying process, so that the clothes are wrinkled.

  FIG. 1 shows a clothes dryer provided in this embodiment. The clothes dryer includes a drying drum 1 in which a humidity sensor 2 for detecting a clothes humidity value is installed at a clothes insertion port 11. The humidity sensor 2 detects the humidity of the clothes in the drying drum 1, and the humidity value is detected. Installed to transmit to the controller. Of these, the humidity sensor is preferably composed of a pair of metal electrodes.

  A detection device 3 is further installed on the drying drum 1, and the detection device 3 is installed inside the drying drum 1. Preferably, the detection device 3 is installed at the edge of the clothes input port of the drying drum 1. As shown in FIG. 1, the detection device 3 is installed on the inner wall of the drying drum 1 facing the clothing inlet so that the clothing can contact the detection device 3 during the rotation of the drying drum 1. As a preferred embodiment, the detection device 3 in this example is a metal electrode pair, preferably a metal strip electrode pair.

  The detection device 3 is electrically connected to the controller, and is installed so as to continuously detect the resistance value of the surrounding environment of the detection device during the rotation of the drying drum 1, and the controller is set in advance within a predetermined time. The resistance value detected by the detection device is acquired every time when the detection is performed. Among them, the predetermined time and the preset time can be appropriately adjusted based on the capacity of the drying drum, respectively. Preferably, the predetermined time in this embodiment is 3 minutes, and the preset time is 0. It is 4 s to 0.6 s, preferably 0.4 s. That is, the controller acquires the resistance value of the surrounding environment detected by the detection device 3 every 0.4 s, and then compares all the resistance values acquired within 3 minutes with the resistance threshold value, and dries based on the comparison result. Determine the amount of clothing on the drum. The detection device 3 detects the resistance value of the clothing when contacting the clothing, and the detection device 3 detects the resistance value in the air when the detection device 3 contacts the air.

  As a feasible embodiment, the detection device 3 is placed on top of the horizontal symmetry axis of the plane where the garment input port 11 is located, preferably the detection device 3 is a horizontal symmetry axis of the plane where the garment input port 11 is located. And within a range that is deflected 60 ° to the left or right from the vertical axis of symmetry. When the drying drum 1 is rotated in the clockwise direction, the detection device 3 is installed on the upper part of the horizontal symmetry axis on the plane where the clothes slot is located, and within a range that is deflected 60 ° to the left from the vertical symmetry axis. That is, it is installed in the range of 10 o'clock to 12 o'clock direction, and is preferably installed at the 10 o'clock position. When the drying drum 1 rotates in the counterclockwise direction, the detection device 3 is installed at the upper part of the horizontal symmetry axis on the plane where the clothes slot is located and within a range that is deflected 60 ° to the right from the vertical symmetry axis. That is, it is installed within the range of 2 o'clock to 12 o'clock, and preferably installed at the 2 o'clock position.

  Among them, the detection device 3 is installed in the range of 10 o'clock to 12 o'clock or in the range of 2 o'clock to 12 o'clock, respectively, in the process of rotating the drying drum 1 This is because there is the highest chance of contact with a detection device installed within the range. Since the amount of clothing in the drying drum 1 and the number of times the detection device 3 contacts the clothing are in a positive linear relationship and the detection device has many chances of contact with the clothing, the controller detects the resistance value detected by the detection device. The amount of clothing in the drying drum can be accurately determined, thereby rationally adjusting the rotational speed of the drying drum.

  In the implementation process, the humidity sensor 2 and the detection device 3 can simultaneously select the same metal electrode (for example, the same material and / or shape). In the use process, the metal electrode of the humidity sensor 2 is the drying drum 1. Is installed at the lower part of the horizontal symmetrical axis edge of the plane where the clothing input port is located. During the operation of the clothes dryer, since the clothes fall to the bottom of the drying drum 1 by gravity, the humidity sensor is installed at the lower part of the horizontal symmetrical axis edge of the plane where the clothes insertion port is located. Can be detected well.

  Of course, one metal electrode pair may be installed in the clothes dryer, and this one metal electrode pair can simultaneously detect the humidity of the clothes and the number of times that the clothes are in contact with the metal electrodes. That is, the work of the humidity sensor and the detection device can be completed simultaneously by one metal electrode pair. When only one metal electrode pair is installed in the clothes dryer, when this metal electrode pair is installed at the lower part of the horizontal symmetrical axis edge of the plane where the clothes slot is located, the metal electrode pair The humidity of the garment can be accurately detected, while the capacity of the garment cannot be accurately detected (performs the function of the humidity sensor). When this metal electrode pair is installed at the upper part of the horizontal symmetrical axis edge of the plane where the clothing inlet is located, the metal electrode has improved accuracy in detecting the capacity of the clothing (executing the function of the detection device). However, the accuracy of detecting the humidity of clothing is reduced.

Example 2
In the control method of the clothes dryer according to the present embodiment, after the drying drum operates at the initial rotation speed, the detection device detects the resistance value of the surrounding environment of the detection device. The controller acquires the resistance value detected by the detection device every predetermined time within a predetermined time. The controller compares each resistance value obtained by detection within a predetermined time with a resistance threshold value, determines the amount of clothing in the drying drum based on the number of resistance values exceeding the resistance threshold value, and determines the clothing in the drying drum. The rotational speed of the drying drum is adjusted based on the amount of. In a preferred embodiment, the controller divides the amount of clothing in the drying drum into at least three levels, each level corresponding to one rotational speed.

  As a preferred embodiment, in this example, the controller divides the amount of clothing in the drying drum into three levels, a small volume level, a medium volume level and a large volume level, respectively. The resistance threshold according to the present embodiment may be one experience value obtained by a plurality of tests, or may be a preset value that satisfies a user's preset needs. In the actual operation process, the resistance threshold value is stored in advance in the controller. When the controller determines that the amount of clothes in the drying drum 1 is small, the controller adjusts the rotational speed of the drying drum 1 to a low rotational speed. When the controller determines that the amount of clothing in the drying drum 1 is medium, the controller adjusts the rotational speed of the drying drum 1 to the medium rotational speed. When the controller determines that the amount of clothing in the drying drum 1 is large, the controller adjusts the rotational speed of the drying drum 1 to a high rotational speed. Among them, the low rotation speed is preferably 40 to 45 rpm, the medium rotation speed is 50 to 55 rpm, the high rotation speed is 60 to 65 rpm, and the initial rotation speed of the drying drum is 40 rpm.

  In the present embodiment, the detection principle using the metal electrode as the detection device is that both clothing and air can come into contact with the metal electrode of the detection device during the rotation of the drying drum. Preferably, the detection device has two metals. It is composed of strip electrodes. The detection device can form a detection circuit with two metal strip electrodes to detect a resistance value between clothing or air and the electrode, respectively.

  The controller acquires the resistance value of the detection device for each preset time within a predetermined time. Preferably, the preset time is 0.4 seconds, and the predetermined time is 3 minutes. The controller can independently acquire the resistance value, that is, the controller sends a command to acquire the resistance value to the detection device every 0.4 seconds, and the detection device receives the command and then acquires the acquired resistance value. Transmit the value to the controller.

  If the amount of clothing in the drying drum is large compared to clothing of the same material and humidity, the contact area between the clothing and the inner wall of the drying drum is relatively large, and the frequency of contact with the metal piece electrode as the detection device is high. It is relatively high, that is, the metal piece electrode has a large number of times of contact with clothing and a small number of times of contact with air. Therefore, if the number of times the resistance value due to the contact between the metal electrode and the clothing is detected by the detection device within a predetermined time is relatively large, the controller will detect the resistance exceeding the resistance threshold among the plurality of resistance values within the predetermined time. It is determined that the number of values is relatively large. When the amount of clothing is small, the contact area between the clothing and the inner wall of the drying drum is relatively small, and the frequency of contact with the metal strip electrode as a detection device is relatively low, that is, the metal strip electrode is less frequently contacted with clothing. , Less frequent contact with air. Therefore, if the number of times the resistance value due to the contact between the metal electrode and the clothing is detected by the detection device within a predetermined time is relatively small, the controller has exceeded the resistance threshold value among the plurality of resistance values within the predetermined time. It is determined that the number of resistance values is relatively small. Similarly, when the amount of clothing is appropriate, the number of times the resistance value due to the contact between the metal electrode and the clothing is detected by the detection device within a predetermined time is also appropriate. It is determined that the number of resistance values exceeding the resistance threshold value among the plurality of resistance values is appropriate.

  Whether the amount of clothing described above is large, small or appropriate is said that the amount of clothing is relative to the capacity of the drying drum. For example, when the clothing capacity of the drying drum is 8 kg, the amount of clothing is 6 kg. Exceeding indicates that the amount of clothing in the drying drum is large, indicates that if the amount of clothing in the drying drum is less than 3 kg, indicates that the amount of clothing in the drying drum is small, and if the amount of clothing in the drying drum is about 4 kg, The amount of clothing in the drying drum is indicated as appropriate.

  Further, whether the number of resistance values detected by the above-described detection device exceeds the resistance threshold is large, small, or appropriate is the number of resistance values with respect to the predetermined number. For example, the predetermined number is 300. It is assumed that the resistance value detected by the detection device within a predetermined time (within 3 minutes) is 450 (detected once every 0.4 seconds), and the controller If it is determined that the number of resistance values exceeding the resistance threshold is 380 (greater than the predetermined number of 300), it is determined that the amount of clothing on the drying drum is large. When the controller determines that the number of the resistance values exceeding the resistance threshold value among the 450 resistance values within the predetermined time is 280 (less than the predetermined number 300), the amount of clothing on the drying drum is a small capacity. judge. When the controller determines that the number exceeding the resistance threshold value among the 450 resistance values within the predetermined time is 300 (equal to the predetermined number 300), the amount of clothing on the drying drum is medium capacity. Is determined.

  Hereinafter, the control method of the clothes dryer will be described in detail through a suitable operation process. After the clothes dryer is activated, the drying drum rotates at an initial rotational speed of 40 rpm, and when the clothes on the drying drum come into contact with the metal electrode at a reasonable frequency, the detection device continuously measures the resistance value of the surrounding environment in real time. The controller acquires the resistance value detected by the detection device every 0.4 s (preset time). Within 3 minutes (predetermined time) after operating the clothes dryer (both the preset time and the predetermined time can be adjusted according to the actual load), the controller sets the resistance value every 0.4 s. The resistance value acquired each time is compared with the resistance threshold value, and the amount of clothing in the drying drum is determined based on the number of resistance values exceeding the resistance threshold within 3 minutes, and the amount of clothing in the drying drum The rotation speed of the drying drum is adjusted based on the above. For example, if the number of resistance values detected by the detection device within 3 minutes is 450 (including the number of contact between the detection device and clothing and the number of contact between the detection device and air), the resistance threshold is exceeded. The correspondence between the number of resistance values and the clothing capacity of the drying drum is as follows. That is, if the number of resistance values exceeding the resistance threshold is 380, the controller defines the clothing capacity of the drying drum as a large capacity, adjusts the rotational speed of the drying drum to 60 to 65 rpm, and exceeds the resistance threshold. If the number of resistance values is 280, the controller defines the clothing capacity of the drying drum as medium capacity, adjusts the rotation speed of the drying drum to 40 to 45 rpm, and the number of resistance values exceeding the resistance threshold is If 180, the controller defines the clothes capacity of the drying drum as a small capacity, and if the number of resistance values exceeding the resistance threshold is 300, the controller defines the clothes capacity of the drying drum as a medium capacity. Then, the rotational speed of the drying drum is adjusted to 50 to 55 rpm.

  In the control method in this embodiment, when it is determined that the capacity of the drying drum is small, the reason why the drying drum is operated at a low rotational speed is that the rotational speed of the drying drum is too high, and the clothes are This prevents sticking to the inner wall of the garment and prevents uneven contact between the garment and the dry air, and prevents the garment from being pressed in the circumferential direction due to the rotational speed of the drying drum being too high, preventing wrinkles from stretching. It is to do. When the amount of clothing in the drying drum is large, operating the drying drum at a high rotational speed can be achieved by increasing the centrifugal force by increasing the angular velocity, thereby causing the clothing to move into the drying drum under the action of centrifugal force. In order to prevent the generation of a large area of wrinkles and improve the uniformity of drying. If the clothing capacity of the drying drum is medium, operating the drying drum at medium rotational speed will cause the clothing to stretch in the drum under appropriate centrifugal force by operating the drying drum at the appropriate angular speed. Not only can the garment stick to the inner wall due to the rotation speed being too fast, but also the rotation speed of the drying drum is too low so that the garment cannot receive sufficient centrifugal force and cannot be stretched. This is because the problem can be prevented if a lot of wrinkles occur in the drum.

  Using the control method according to the present embodiment, the controller can adjust the rotation speed of the drying drum based on the amount of clothes in the drying drum. If the garment is improved and there is relatively little clothing on the drying drum, the rotational speed of the drying drum is reduced. Thereby, the good clothes drying effect is implement | achieved and the wrinkle problem of the clothes dried by the clothes dryer can be solved.

Example 3
In an embodiment according to the present invention, a storage medium is further provided. Preferably, in the present embodiment, the above-described storage medium is installed so as to store program codes for executing the following steps.

  After the drying drum (1) operates at the initial rotation speed, the detection device (3) detects the resistance value of the surrounding environment of the detection device, and the controller sets the resistance value for each preset time within a predetermined time. get.

  The controller compares each resistance value with a resistance threshold value, and determines the amount of clothing in the drying drum (1) based on the number of resistance values exceeding the resistance threshold value.

  The controller adjusts the rotational speed of the drying drum (1) based on the amount of clothing in the drying drum (1).

  Preferably, in the present embodiment, the storage medium described above is a USB flash memory, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk, Non-volatile storage media that can store program codes, such as compact discs, are included, but are not limited to these.

  Preferably, since the illustration in the present embodiment can refer to the above-described embodiment and the illustration described in the preferred embodiment, repeated description is omitted here.

  Those skilled in the art can implement the above-described modules or steps with a general-purpose computing device, and may be concentrated on a single computing device or distributed over a network of multiple computing devices, preferably with a computing device. Since they can be implemented by executable program code, they can be stored in a storage device and executed by a computing device and, under certain circumstances, shown or drawn in a different order than described herein It should be understood that the steps may be performed or each may be created in an integrated circuit module, or multiple modules or steps within them may be created in a single integrated circuit module. It is clear that there is. The above description is only an example of the present invention and does not limit the present invention.

Example 4
FIG. 3 is a schematic diagram of the hardware structure of the device according to the embodiment of the present invention. As shown in FIG.

  One or more processors 410;

  3, and one processor 410 is taken as an example in FIG.

  The device may further include an input device 430 and an output device 440.

  The processor 410, the memory 420, the input device 430, and the output device 440 in the device may be connected by a bus or other methods. In FIG.

  The memory 420 is used as a computer-readable storage medium for storing software programs, computer executable programs, and modules. The processor 410 executes various functional applications and data processing in the server by executing software programs, commands and modules stored in the memory 420, that is, implements the clothes dryer control method according to the above-described method embodiments. To do.

  The memory 420 may include a program storage area and a data storage area. Of these, the program storage area can store an operation system and an application program that requires at least one function. Data created based on use can be stored. The memory 420 may include a high-speed random access memory, and may further include at least a nonvolatile memory such as a magnetic disk, a flash memory, and other nonvolatile solid-state memory. In some embodiments, the memory 420 may preferably include memory remotely located with respect to the processor 410, which can be connected to the terminal equipment by a network. Examples of such networks include, but are not limited to, the Internet, corporate internet, local area network, mobile communications internet, and combinations thereof.

  The input device 430 is used to receive input digital and character information and generate key signal inputs related to user installation and function control of the terminal. The output device 440 may include a display device such as a display.

  The one or more modules are stored in the memory 420 and when executed by the one or more processors 410,

  After the drying drum (1) operates at the initial rotation speed, the detection device detects the resistance value of the surrounding environment of the detection device, and the controller acquires the resistance value every predetermined time within a predetermined time;

  The controller compares each resistance value with a resistance threshold value, and determines the amount of clothing in the drying drum (1) based on the number of resistance values exceeding the resistance threshold value;

  The controller performs adjusting the rotational speed of the drying drum (1) based on the amount of clothing in the drying drum (1).

1. Drying drum 2. Humidity sensor 3. Detection device

Claims (11)

A clothes dryer including a drying drum (1) in which a humidity sensor (2) for detecting the humidity of clothes is installed at a clothes insertion port,
A detection device (3) is further installed on the drying drum (1), the detection device (3) is installed inside the drying drum (1),
The detection device (3) is connected to a controller and installed to detect the resistance value of the surrounding environment of the detection device,
The controller is configured to acquire a resistance value for each preset time within a predetermined time and to control a rotation speed of the drying drum based on the resistance value. Machine.   The clothes dryer according to claim 1, wherein the detection device (3) is installed at an edge of a clothes input port of the drying drum (1).   The clothes dryer according to claim 1, wherein the detection device (3) is installed on an upper part of a horizontal horizontal axis of symmetry in which the clothes insertion port is located.   The clothes dryer according to claim 2, wherein the detection device (3) is installed within a range that is deflected 60 ° to the left or right from a vertical axis of symmetry of the plane in which the clothes insertion port is located.   The clothes dryer according to any one of claims 1 to 4, wherein the detection device (3) is a metal electrode pair. After the drying drum (1) operates at the initial rotation speed, the detection device (3) detects the resistance value of the surrounding environment of the detection device, and the controller acquires the resistance value every predetermined time within a predetermined time. And
The controller compares each resistance value with a resistance threshold value, determines the amount of clothes in the drying drum (1) based on the number of resistance values exceeding the resistance threshold value, and the drying drum (1) Adjusting the rotational speed of the drying drum (1) based on the amount of clothes in the clothes dryer.   The method of controlling a clothes dryer according to claim 6, wherein the controller divides the amount of clothes in the drying drum (1) into at least three levels, each level corresponding to one rotational speed. The controller divides the amount of clothing in the drying drum (1) into a small volume, a medium volume, and a large volume,
If it is determined that the amount of clothing in the drying drum (1) is small, the rotational speed of the drying drum (1) is adjusted to a low rotational speed;
If it is determined that the amount of clothing in the drying drum (1) is medium capacity, the rotational speed of the drying drum (1) is adjusted to a medium rotational speed;
The method of controlling a clothes dryer according to claim 7, wherein if the amount of clothing in the drying drum (1) is determined to be large, the rotational speed of the drying drum (1) is adjusted to a high rotational speed. The low rotation speed is 40 to 45 rpm,
Medium rotation speed is 50-55 rpm,
The method for controlling a clothes dryer according to claim 8, wherein the high rotation speed is 60 to 65 rpm.   The method for controlling a clothes dryer according to claim 6, wherein the initial rotation speed is 40 rpm.   The method for controlling a clothes dryer according to any one of claims 6 to 10, wherein the preset time is 0.4 s to 0.6 s.