Dryer and method for controlling same

Abstract

The present invention relates to a dryer using dielectric heating and a method for controlling same. The dryer of the present invention comprises: a main body; a drying chamber which is provided inside the main body and which accommodates items to be dried; a plurality of electrodes which are provided in the main body spaced apart from each other and which form an electric field in the drying chamber; an electrode driving unit that applies power to the plurality of electrodes; a sensor that senses information for recognizing the moisture content of the items being dried; and a processor which recognizes the moisture content of the items being dried on the basis of the information sensed by the sensor, and which controls the electrode driving unit such that the power application period of the plurality of electrodes is adjusted on the basis of the recognized moisture content.

Description

Dryer and method of controlling the same

[0001] The present invention relates to a dryer for drying an object using genetic heating and a control method thereof.

[0002] A dryer is a device that dries an object (e.g., clothing) by removing moisture contained in the object.

[0003] Depending on the heat source that heats the air, dryers can be divided into heater types, heat pump types, and hybrid types that use both a heater and a heat pump.

[0004] These dryers use high temperatures of 50 to 70°C to dry objects for extended periods of time. Because of this, previous dryers have been prone to shrinkage and damage when drying objects.

[0005] One aspect of the disclosed invention provides a dryer and a control method thereof that adjust at least one of a power application cycle of first and second electrodes and a rotation speed of first and second motors based on a moisture content.

[0006] Another aspect of the disclosed invention provides a dryer and a control method thereof that adjusts at least one of a power application cycle of first and second electrodes and a rotation speed of first and second motors based on a driving course.

[0007] According to one aspect of the disclosed invention, a dryer comprises: a main body; a drying chamber provided inside the main body and accommodating an object; a plurality of electrodes provided in the main body and spaced apart from each other and forming an electric field in the drying chamber; an electrode driving unit that applies power to the plurality of electrodes; a sensor that detects information for recognizing a moisture content of the object; and a processor that recognizes a moisture content of the object based on information detected by the sensor and controls the electrode driving unit so that a power application cycle of the plurality of electrodes is adjusted based on the recognized moisture content.

[0008] The power application cycle of the plurality of electrodes of the dryer according to one aspect includes first, second and third reference cycles in which the on-time of applying power to the plurality of electrodes is different from each other.

[0009] The processor of the dryer according to one aspect changes the first reference cycle to the second reference cycle based on the recognized moisture content and the first reference moisture content, and changes the second reference cycle to the third reference cycle based on the recognized moisture content and the second reference moisture content.

[0010] The first reference moisture content of the dryer according to one aspect is a moisture content higher than the second reference moisture content.

[0011] A processor of the dryer according to one aspect controls the electrode drive unit so that power applied to the plurality of electrodes is cut off based on the recognized moisture content reaching the target moisture content.

[0012] According to one aspect, the dryer further includes a fan provided inside the main body and circulating air in the drying chamber. The processor of the dryer according to one aspect controls the rotation speed of the fan so that the strength of the intake and exhaust forces of the drying chamber are adjusted based on the recognized moisture content.

[0013] The processor of the dryer according to one aspect controls the rotation of the fan to stop based on the recognized moisture content reaching the target moisture content.

[0014] A sensor of a dryer according to one aspect includes at least one of a weight sensor for detecting the weight of an object, a humidity sensor for detecting the humidity of a drying room, and a temperature sensor for detecting the temperature of the drying room.

[0015] A dryer according to one aspect further includes a drum provided inside a main body, having a drying chamber and being rotatable; and a fan for circulating air in the drum. A processor of the dryer according to one aspect controls at least one of a rotation speed of the drum and a rotation speed of the fan based on a recognized moisture content.

[0016] The processor of the dryer according to one aspect controls the rotation of the drum and fan to stop based on the recognized moisture content reaching the target moisture content.

[0017] According to one aspect, a dryer further includes a memory storing reference information and load control information for each drying course; and an input unit receiving a user input. A processor of the dryer according to one aspect recognizes reference information and load control information corresponding to a drying course received in the input unit based on information stored in the memory, and controls at least one of a power application cycle of a plurality of electrodes, a rotation speed of a drum, and a rotation speed of a fan based on the recognized moisture content, the recognized reference information, and the recognized load control information.

[0018] The reference information of the dryer according to one aspect includes one or more reference moisture contents. The load control information of the dryer according to one aspect includes a plurality of reference cycles corresponding to power application cycles, a plurality of reference rotation speeds corresponding to the rotation speed of the drum, and a plurality of suction and exhaust force intensities corresponding to the rotation speed of the fan.

[0019] A processor of a dryer according to one aspect recognizes a target moisture content corresponding to a received drying course, and controls the power application cycle of a plurality of electrodes and the rotation of a drum and a fan to stop based on the recognized moisture content reaching the target moisture content.

[0020] According to one aspect, a sensor of a dryer includes a current sensor that detects current flowing to a motor connected to a drum. According to one aspect, a processor of the dryer recognizes the weight of an object based on the current detected by the current sensor, and recognizes the moisture content of the object based on the recognized weight of the object.

[0021] A control method of a dryer according to another aspect is a control method of a dryer that performs drying by using an electric field of a plurality of electrodes provided spaced apart from each other in a main body, wherein the moisture content of an object accommodated in a drying room is recognized based on information detected by a sensor, a power application cycle for power applied to the plurality of electrodes is controlled based on the recognized moisture content, and the power applied to the plurality of electrodes is cut off based on the recognized moisture content reaching a target moisture content.

[0022] The power application cycle of the plurality of electrodes includes first, second, and third reference cycles in which the on-times for applying power to the plurality of electrodes are different from each other. Controlling the power application cycle for the power applied to the plurality of electrodes includes changing the first reference cycle to a second reference cycle based on the recognized moisture content and the first reference moisture content, and changing the second reference cycle to a third reference cycle based on the recognized moisture content and the second reference moisture content. The first reference moisture content is a moisture content higher than the second reference moisture content.

[0023] Recognizing the moisture content of an object includes detecting the weight of the object through a sensor and recognizing the moisture content of the object based on the detected weight of the object.

[0024] A method for controlling a dryer according to another aspect further includes controlling at least one of a rotation speed of a drum provided inside the main body and a rotation speed of a fan provided inside the main body based on a recognized moisture content.

[0025] A method of controlling a dryer according to another aspect further includes controlling the rotation of the drum and fan to stop based on the recognized moisture content reaching the target moisture content.

[0026] A method for controlling a dryer according to another aspect further includes receiving a drying course through an input unit, recognizing reference information and load control information corresponding to the received drying course based on information stored in a memory, and controlling at least one of a power application cycle of a plurality of electrodes, a rotation speed of a drum, and a rotation speed of a fan based on the recognized moisture content, the recognized reference information, and the recognized load control information.

[0027] In a control method of a dryer according to another aspect, reference information includes one or more reference moisture contents. Load control information includes a plurality of reference cycles corresponding to a power application cycle, a plurality of reference rotation speeds corresponding to a drum rotation speed, and a plurality of suction and exhaust force intensities corresponding to a fan rotation speed.

[0028] A method for controlling a dryer according to another aspect further includes recognizing a target moisture content corresponding to a received drying course.

[0029] According to the disclosed invention, the present invention can dry an object at a low temperature uniformly regardless of the size and location of the object, and has a faster drying time compared to a heat pump type dryer, thereby improving drying performance.

[0030] The present invention can prevent the temperature of an object from rising by controlling at least one of the power application cycle of the first and second electrodes and the rotation speed of the first and second motors during drying using dielectric heating, thereby minimizing damage to the object and maintaining the quality of the object.

[0031] The present invention can perform drying uniformly and quickly and reduce energy consumption by controlling the rotation speed of the drum by controlling the rotation speed of the first motor during genetic heating.

[0032] The present invention can improve the safety of a dryer, improve the quality and marketability of a dryer, and further secure the competitiveness of a dryer.

[0033] Figure 1 is an external view of a dryer according to one embodiment.

[0034] Figure 2 is a cross-sectional view of a dryer according to one embodiment.

[0035] Figure 3 is an example diagram of the arrangement of electrodes provided in a dryer according to one embodiment.

[0036] Figure 4 is a control configuration diagram of a dryer according to one embodiment.

[0037] Figure 5 is an example diagram of adjusting the power application cycle corresponding to the standard course of a dryer according to one embodiment.

[0038] Figure 6a is a graph of the temperature of an object according to drying time when power is continuously applied to the first and second electrodes of a dryer according to the prior art.

[0039] Figure 6b is a graph of the temperature of an object according to drying time when power is periodically applied to the first and second electrodes of a dryer of one embodiment.

[0040] Figure 7 is a table showing the drying efficiency and shrinkage ratio according to hot air drying, continuous power application, and intermittent power application.

[0041] Figure 8 is an example diagram of adjusting the power application cycle corresponding to the rapid course of a dryer according to one embodiment.

[0042] Figure 9 is an example diagram of adjusting the power application cycle corresponding to the wool course of a dryer according to one embodiment.

[0043] Figure 10 is a temperature graph for each drying course of a dryer according to one embodiment.

[0044] Fig. 11 is a control flowchart of a dryer according to one embodiment.

[0045] Fig. 12 is an exemplary diagram of a dryer according to another embodiment.

[0046] Fig. 13 is a control configuration diagram of a dryer according to another embodiment.

[0047] Fig. 14 is an example diagram of adjusting the power application cycle corresponding to the standard course of a dryer according to another embodiment.

[0048] Figures 15a, 15b and 15c are temperature graphs for each material of an object dried in a dryer according to another embodiment.

[0049] Fig. 16 is a control flowchart of a dryer according to another embodiment.

[0050] It should be understood that the various embodiments and terms used in this document are not intended to limit the technical features described in this document to specific embodiments, but rather to include various modifications, equivalents, or substitutes of the embodiments.

[0051] In connection with the description of the drawings, similar reference numerals may be used for similar or related components.

[0052] The singular form of a noun corresponding to an item may include one or more of said items, unless the relevant context clearly indicates otherwise.

[0053] In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" may include any one of the items listed together in that phrase, or all possible combinations thereof.

[0054] The term "and / or" includes any combination of a plurality of related described elements or any one of a plurality of related described elements.

[0055] Terms such as "first," "second," or "first" or "second" may be used simply to distinguish one component from another and do not qualify the components in any other respect (e.g., importance or order).

[0056] When a component (e.g., a first component) is referred to as being "coupled" or "connected" to another component (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0057] The terms "include" or "have" are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in this document, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0058] When a component is said to be “connected,” “coupled,” “supported,” or “in contact with” another component, this includes not only cases where the components are directly connected, coupled, supported, or in contact, but also cases where the components are indirectly connected, coupled, supported, or in contact through a third component.

[0059] When we say that a component is "on" another component, this includes not only cases where the component is in contact with the other component, but also cases where there is another component between the two components.

[0060] Hereinafter, a garment treatment device according to various embodiments will be specifically described with reference to the attached drawings.

[0061] The dryer may be a dryer that dries an object by heating moisture in the object accommodated in a drying room.

[0062] The object includes any object capable of drying. For example, the object includes, but is not limited to, various types of fibers and fabrics, such as cloth, clothing, towels, and blankets.

[0063] Dryers can be divided into flat-type dryers and drum-type dryers depending on the presence or absence of a drum and the arrangement structure of the electrodes.

[0064] Fig. 1 is an exemplary external view of a dryer according to one embodiment, Fig. 2 is a cross-sectional view of a dryer according to one embodiment, and Fig. 3 is an exemplary view of the arrangement of electrodes provided in a dryer according to one embodiment. The dryer according to one embodiment may be a drum-type dryer.

[0065] As illustrated in FIG. 1, the dryer (1) may include a main body (110) forming an exterior, a drum (120) provided inside the main body (110), a door (130) provided outside the main body (110), and a filter (140) for capturing various foreign substances such as lint contained in air discharged from the drum (120).

[0066] The main body (110) may be in the shape of a rectangular parallelepiped that extends vertically. However, this is an example for convenience of explanation, and the main body (110) may be implemented in various shapes.

[0067] An opening may be provided on the front of the main body (110). This opening may be provided at a position corresponding to the opening of the drum (120) and may be provided in a shape corresponding to the opening of the drum (120).

[0068] The drum (120) may be provided to be rotatable within the main body (110). The drum (120) may be formed in a cylindrical shape. The drum (120) may rotate clockwise or counterclockwise within the main body (110) and may rotate at various speeds.

[0069] The drum (120) forms a drying room and can accommodate an object (i.e., an object to be dried).

[0070] The drum (120) can allow an object received through rotation to move within the drum (120). In this case, an object introduced into the drying chamber of the drum (120) through the opening of the main body (110) can be tumbled within the drying chamber and dried by an electric field introduced into the drying chamber.

[0071] A plurality of lifters (121) for lifting an object may be provided on the inner surface of the drum (120). The plurality of lifters (121) may be provided to protrude from the inner surface of the drum (120).

[0072] The door (130) may be circular in shape corresponding to the shape of the opening of the main body (110) or the opening (122) of the drum (120), and may be formed with a diameter larger than the opening (122).

[0073] The door (130) can be pivotally connected to the front of the main body (110). For example, the door (130) can be connected to a hinge provided on the front surface of the main body (110) adjacent to the door (130) and rotate around the hinge.

[0074] The door (130) can be brought into contact with a surface forming an opening of the main body (110) to open the opening of the main body (110), or can be separated from the surface forming the opening of the main body (110) to close the opening.

[0075] The door (130) can be used to close or open the drying room inside the drum (120).

[0076] At least a portion of the door (130) may be made transparent or translucent so that the inside of the main body can be seen.

[0077] The filter (140) can purify the air generated during drying operation and discharge the purified air.

[0078] The filter (140) may be provided so as to be detachable from the main body.

[0079] The dryer may further include a user interface (150) provided on the upper side of the front of the main body (110). The location of the user interface (150) is not limited to the upper side of the front of the main body. The user interface (150) may be provided at various locations of the dryer (1).

[0080] The user interface (150) can display operation information of the dryer (1) and receive user input.

[0081] The user interface (150) may include an input unit for receiving user input, a display unit for displaying operation information of the dryer (1), and may further include a speaker for outputting operation information of the dryer as sound.

[0082] The input unit can convert sensory information received from the user into an electrical signal.

[0083] The input unit may include a physical button, key, tact switch, push switch, slide switch, toggle switch, micro switch, touch switch, touch pad, touch screen, jog dial, and / or microphone.

[0084] If a jog dial is provided as an input unit, UI elements displayed on the display unit can move sequentially according to the rotation of the jog dial.

[0085] The display unit may include at least one of a liquid crystal display (LCD) panel, a light emitting diode (LED) panel, an organic light emitting diode (OLED) panel, a micro LED panel, or a plurality of seven-segment panels.

[0086] The display may include a touch screen.

[0087] The display unit can display information input by the user or information provided to the user on various screens. The display unit can display information related to the operation of the dryer (1) in the form of at least an image or text. In addition, the display unit can display a graphical user interface (GUI) that enables control of the dryer (1). That is, the display unit can display a user interface element (UI element), such as an icon.

[0088] As shown in FIG. 2, the drum (120) may include an intake port (123) provided at the rear of the drum for sucking in air, and an exhaust port (124) provided at the lower portion of the front of the drum for discharging air containing moisture to the outside of the drum (120).

[0089] It is also possible to provide a contact sensor (not shown) around at least one of the intake port (123) and the exhaust port (124) of the drum (120) to detect the moisture content of the object contained inside the drum (120).

[0090] As shown in FIG. 2, the dryer (1) may include air paths (111, 112) provided inside the main body (110) and the drum (120) for circulating air, a fan (160) provided inside the main body (110) for circulating air between the inside and the outside of the drum (120), and a motor (170) provided inside the main body (110) for transmitting rotational force for rotating the drum (120) and the fan (160).

[0091] The fan (160) is provided inside the fan housing (160a) and may be provided to be rotatable.

[0092] The exhaust path (111) is provided between the exhaust port (124) of the drum (120) and the fan housing (160a), and is a path that allows air inside the drum (120) to move into the interior of the fan housing (160a).

[0093] The exhaust path (111) can allow air to be discharged from the inside of the drum (120) to the outside of the drum (120).

[0094] A filter (140) may be placed at the exhaust port of the drum or the inlet of the exhaust path (111) of the dryer (1). The outlet of the exhaust path (111) may be exposed to the outside of the main body (110).

[0095] By the rotation of the fan (160), air inside the drum (120) can be introduced into the exhaust passage (111). The air introduced into the inlet of the exhaust passage (111) can be filtered while passing through the filter (140), and the filtered air can be discharged to the outside.

[0096] The intake passage (112) is connected to the intake port (123) of the drum (120) and is a passage that allows air blown by the fan (160) to move into the drum (120).

[0097] As the fan (160) rotates, air can be supplied into the drum (120) through the intake passage (112) and the air intake port (124) of the drum (120). The air supplied into the drum (120) can be used for drying the object.

[0098] The motor (170) performs rotation and transmits the rotational force generated by the rotation to the drum (120).

[0099] The rotation speed of the drum (120) can be controlled by controlling the rotation speed of the motor (170). The rotation direction of the drum (120) can be controlled by controlling the rotation direction of the motor (170).

[0100] The dryer (1) further includes a pulley (171) that is connected to a rotating shaft connected to a motor (170) and rotates by receiving power from the motor (170), and a belt (172) that is provided on the outer surface of the drum and rotates the drum (120) by rotating the pulley (171). A roller (173) that supports the drum (120) so that it rotates smoothly may be provided on the outer surface of the drum (120).

[0101] That is, by installing the belt (172) so that it is wound around the outer surface of the pulley (171) and the outer surface of the drum (120), the drum (120) can be rotated as the pulley (171) rotates according to the driving of the motor (170).

[0102] The motor (170) can also transmit the generated rotational force to the fan (160). In this case, the shaft of the motor (170) can be extended to both sides. That is, a pulley (171) can be connected to one side of the motor (170) shaft, and a fan (160) can be connected to the other side.

[0103] The motor (170) can transmit rotational force to the fan (160) to cause the fan (160) to rotate. Through this, the object placed in the drying room within the drum (120) can be tumbled while air is uniformly applied to the object through the fan (160).

[0104] The dryer (1) may also include a fan motor (not shown) for rotating the fan (160) and a drum motor (not shown) for rotating the drum (120). In this case, the pulley (171) and the belt (172) may be omitted.

[0105] The dryer (1) may further include an auxiliary fan (not shown) to generate forced convection.

[0106] The dryer (1) may include a heating unit (180) that generates heat for drying an object accommodated in a drum. The heating unit (180) may be a device that generates heat by causing a dielectric to vibrate using a radio frequency. The heating unit (180) may include a plurality of electrodes (181, 182) that are provided on the outer surface of the drum (120) but are spaced apart from the drum (120). The number of electrodes may be two or more.

[0107] As shown in Fig. 2, the heating unit (180) of the dryer (1) may include first and second electrodes (181, 182).

[0108] The first and second electrodes (181, 182) may be spaced apart from each other on the outside of the drum (120). For example, the first and second electrodes (181, 182) may be spaced apart from each other along the periphery of the drum (120). The first and second electrodes (181, 182) may also be spaced apart from the main body (110) and the drum (120).

[0109] When voltage is applied to the first and second electrodes (181, 182), an electric field may be generated inside the drum (210). When an electric field is applied to the dielectric, polarization occurs due to the movement of charged bodies such as electrons and ions contained within the dielectric, and the polar dipoles of the sign try to change direction in the direction of the electric field. In the case of a high-frequency alternating current of several to several tens of MHz, where the polarity changes millions of times per second, the friction caused by the violent movement of the dipoles trying to follow the reversal of the electric field generates heat.

[0110] That is, the electric field generated inside the drum (120) can vibrate the dielectric (e.g., water molecules) contained in the object, and when the dielectric (e.g., water molecules) vibrates, dipole frictional heat is generated, which can heat the dielectric. The object can be dried by evaporating the heated dielectric. The evaporated dielectric can be discharged outside the drum (120) together with the air supplied into the drum (120).

[0111] As illustrated in FIG. 3, the heating unit (180) of the dryer (1) may include first, second, and third electrodes (181, 182, 183).

[0112] The first, second, and third electrodes (181, 182, 183) may be spaced apart from each other on the outside of the drum (120). For example, the first, second, and third electrodes (181, 182, 183) may be spaced apart from each other along the perimeter of the outer surface of the drum (120).

[0113] The first, second, and third electrodes (181, 182, 183) may each be provided in the shape of a plate having a curvature.

[0114] The first electrode (181) may be arranged on the first outer surface of the drum (120), the second electrode (182) may be arranged on the first side of the first electrode (1181) but may be arranged on the second outer surface of the drum (120), and the third electrode (183) may be arranged on the second side of the first electrode (181) but may be arranged on the third outer surface of the drum.

[0115] The first, second, and third electrodes (181, 182, 183) can be fixed between the main body (110) and the drum (120). Since the first, second, and third electrodes (181, 182, 183) are not connected to the drum (120), they do not restrict the rotation of the drum (120).

[0116] In addition, since the first, second, and third electrodes (181, 182, and 183) are arranged along the periphery of the drum (120), an electric field can be generated in various areas within the drum (120). Accordingly, the dryer (1) can generate an electric field within the drum (120) through the first, second, and third electrodes (181, 182, and 183) even while the drum (120) rotates, and can perform drying of the object.

[0117] When the dryer is provided with first, second, and third electrodes (181, 182, and 183), the first and second electrodes are operated and the third electrode is not operated to form an electric field first, then the second and third electrodes are operated and the first electrode is not operated to form an electric field second, and then the first and third electrodes are operated and the second electrode is not operated to form an electric field third.

[0118] In other words, the dryer can dry the object by changing the area where the electric field is mainly formed.

[0119] The dryer can also operate only two of the first, second and third electrodes (181, 182, 183) during drying operation.

[0120] Fig. 4 is a control configuration diagram of a dryer according to one embodiment, which is described with reference to Figs. 5 to 10.

[0121] Fig. 5 is an exemplary diagram showing the control of the power application cycle corresponding to the standard course of a dryer according to one embodiment. Fig. 6a is a graph showing the temperature of an object according to the drying time when power is continuously applied to the first and second electrodes of a dryer according to the prior art, Fig. 6b is a graph showing the temperature of an object according to the drying time when power is periodically applied to the first and second electrodes of a dryer according to one embodiment, and Fig. 7 is a table showing the drying efficiency and shrinkage ratio according to hot air drying, continuous power application, and intermittent power application.

[0122] FIG. 8 is an example diagram showing the control of a power application cycle corresponding to a fast course of a dryer according to one embodiment, FIG. 9 is an example diagram showing the control of a power application cycle corresponding to a wool course of a dryer according to one embodiment, and FIG. 10 is a temperature graph for each drying course of a dryer according to one embodiment.

[0123] One embodiment will be described as an example of a dryer including a drum motor (first motor) for rotating the drum and a fan motor (second motor) for rotating the fan, and including first and second electrodes (181, 182).

[0124] A dryer according to one embodiment may include a user interface (150), a first motor (170), a second motor (175), a heating unit (180), a sensor (190), and a control unit (200), and may further include a communication unit (210).

[0125] The user interface (150) may be an input / output device for interaction between a user and the dryer.

[0126] The user interface (150) may include an input unit (151) for receiving user input and an output unit (152, 153) for outputting various operating information of the dryer.

[0127] The input unit (151) can receive a power on command, a power off command, and a pause command, and can receive information about a drying course and options selected by the user.

[0128] Drying courses may include a standard course, a quick course, and a wool course, and may further include a synthetic fiber course, a shirt course, a quilt course, a towel course, an outdoor course, and an artificial intelligence course.

[0129] Option information may include drying time information, target dryness information, drying temperature information, material information of the object (cotton, wool, polyester, rayon, etc.), and type information of the object (blanket, clothes, towel, etc.).

[0130] The output unit can visually or audibly convey information related to the operation of the dryer to the user. For example, the output unit can convey information related to the drying cycle and options selected by the user.

[0131] The output section may include a display section (152) and may further include a speaker (153).

[0132] The display unit (152) can display the operation information of the dryer (1) as a visual image.

[0133] The display unit (152) can display information about the drying course and options selected by the user.

[0134] The display unit (152) can display the total drying time and the remaining drying time.

[0135] The display unit (152) can also display the moisture content of the object.

[0136] The speaker (153) can output information on the start of drying operation and information on the end of drying operation as sound.

[0137] The speaker (153) can also output voice guidance information about the drying course and options selected by the user.

[0138] The first motor (170) is connected to the drum (120) and applies rotational force to the drum (120).

[0139] The first motor (170) can rotate at a rotation speed and in a rotation direction corresponding to the control command of the processor (201).

[0140] The second motor (175) is connected to the fan (160) and applies rotational force to the fan (160).

[0141] The second motor (175) can rotate at a rotation speed and in a rotation direction corresponding to the control command of the processor (201).

[0142] The dryer (1) may further include a first motor driver (not shown) for driving a first motor (170) and a second motor driver (not shown) for driving a second motor (175). In this case, the first motor driver may generate an operation signal based on a control command of the processor (201) and transmit the generated operation signal to the first motor (170). The second motor driver may generate an operation signal based on a control command of the processor (201) and transmit the generated operation signal to the second motor (175).

[0143] The heating unit (180) may be a device for heating an object contained in a drum (120). In this case, water contained in the object may be heated.

[0144] The heating unit (180) may include a first electrode (181), a second electrode (182), and an electrode driving unit (183, 184, 185, 186, 187, 188).

[0145] The first electrode (181) and the second electrode (182) are placed at a certain distance apart and form an electric field inside the drum.

[0146] The electrode driving unit may include a DC power supply unit (184), an RF power supply unit (185), a phase shifter (186), a coupler (187), and a matching circuit (188).

[0147] The DC power supply unit (184) can convert AC power supplied from a commercial power source (S) into DC power and transmit it to the RF power supply unit (185).

[0148] The magnitude of the voltage applied to the first and second electrodes (181, 182) can be adjusted by controlling the DC power supply unit (184). For example, when the DC power transmitted from the DC power supply unit (184) to the RF power supply unit (185) increases, the amplitude of the high-frequency signal generated by the RF power supply unit (185) increases, and the magnitude of the voltage applied to the first and second electrodes (181, 182) can increase. The magnitude of the voltage can be expressed as an rms value.

[0149] The RF power supply unit (185) can generate a high-frequency signal using DC power received from the DC power supply unit (184). The high-frequency signal can include an RF (Radio Frequency) signal. The RF power supply unit (185) can apply the generated high-frequency signal to the first and second electrodes (181, 182). A sinusoidal voltage can be applied to the first and second electrodes (181, 182) by the high-frequency signal.

[0150] The phase shifter (186) can shift the phase of the voltage applied to the first and second electrodes (181, 182). For example, the phase shifter (186) can shift the phase of the voltage applied to the first and second electrodes (181, 182) by controlling a high-frequency signal generated by the RF power supply (185).

[0151] The phase shifter (186) may include a PLL circuit (Phase Locked Loop circuit) for shifting the phase of the voltage applied to electrodes 1 and 2 (181, 182). The PLL circuit is configured as a closed loop and may perform a function of shifting the phase or frequency of a high-frequency signal.

[0152] The coupler (187) can detect a high frequency signal generated from the RF power supply (185) to apply voltage to the first and second electrodes (181, 182).

[0153] The matching circuit (188) can match the impedance of the RF power supply (185) and the impedance of each of the first and second electrodes. The matching circuit (188) can include a variable inductor and a variable capacitor.

[0154] If there is a difference between the impedance of the RF power supply unit (185) and the impedance of each of the first and second electrodes, reflected power is generated from the first and second electrodes (181, 182), and power transmission efficiency is reduced. In order to minimize the reflected power, it is necessary to match the impedance of the RF power supply unit (185) and the impedance of each of the first and second electrodes (181, 182). Impedance matching can be performed by controlling the matching circuit (185).

[0155] The heating element may further include a power sensor (not shown) that detects current and / or voltage applied to the first and second electrodes.

[0156] A power sensor (not shown) can transmit information about the measured current and / or voltage to the control unit (200). The control unit (200) can determine the power output from each component of the heating unit (180) and the power supplied to each component based on the information about the current and / or voltage transmitted from the power sensor. For example, the control unit (200) can determine the power supplied to the first and second electrodes (181, 182) based on the current and voltage applied to the first and second electrodes (181, 182).

[0157] The sensor (190) detects information necessary to recognize the moisture content of the object contained in the drum.

[0158] The sensor (190) may include a current sensor that detects the current flowing in the first motor (170). The current sensor may transmit information about the detected current to the processor (201).

[0159] The sensor (190) may include a contact sensor provided on the inner surface of the drum (120) and outputting on information corresponding to contact with an object accommodated in the drum (120) and off information corresponding to non-contact with the object.

[0160] When outputting information from a contact sensor, the magnitude of the electrical signal may vary depending on the amount of moisture contained in the object. The contact sensor may output an electrical signal corresponding to the amount of moisture contained in the contacted object when in contact with the object. When the contact sensor contacts an object with a high moisture content, the current flows smoothly, thereby outputting an electrical signal with a large pulse value. When the contact sensor contacts an object with a low moisture content, the current does not flow smoothly, thereby outputting an electrical signal with a small pulse value. Here, the electrical signal may be a current signal or a voltage signal.

[0161] The contact sensor may be a plate bar type touch sensor, an electrode sensor or a switch sensor.

[0162] The sensor (190) may also include a weight sensor that detects the weight of an object contained in the drum (120).

[0163] The sensor (190) is provided adjacent to the exhaust port (124) of the drum and may include a humidity sensor that detects the humidity of air discharged through the exhaust port (124).

[0164] The sensor (190) is provided adjacent to the exhaust port (124) of the drum and may include a temperature sensor that detects the temperature of air discharged through the exhaust port (124).

[0165] The control unit (200) can be electrically connected to components of the dryer (1) and can control the components of the dryer (1). For example, the control unit (200) can control the first motor (170) and the second motor (175). The control unit (200) can control the electrode driving unit to apply power to the first and second electrodes (181, 182).

[0166] The control unit (200) may be implemented with a memory (202) that stores data on an algorithm for controlling the operation of components within the dryer (1) or a program that reproduces the algorithm, and a processor (201) that performs the aforementioned operation using the data stored in the memory (202). In this case, the memory (201) and the processor (202) may each be implemented as separate chips. Alternatively, the memory (201) and the processor (202) may be implemented as a single chip. In addition, a plurality of processors and a plurality of memories may be provided.

[0167] The processor (201) can process various data and various signals using instructions, data, programs and / or software stored in the memory (202).

[0168] The processor (201) may include one core or multiple cores. The processor (201) may include a separate NPU that performs the operation of an artificial intelligence model, and may include a dedicated graphics processor (GPU), etc.

[0169] The memory (202) may be implemented as at least one of a non-volatile memory element such as a cache, a ROM (Read Only Memory), a PROM (Programmable ROM), an EPROM (Erasable Programmable ROM), an EEPROM (Electrically Erasable Programmable ROM), and a flash memory, a volatile memory element such as a RAM (Random Access Memory), or a storage medium such as a hard disk drive (HDD) or a CD-ROM, but is not limited thereto.

[0170] The memory (202) may include one or more memory chips or one or more memory blocks.

[0171] The processor (201) and memory (202) will be described in more detail.

[0172] The processor (201) can also control drying operation based on target dryness information received through the input unit (151).

[0173] The processor (201) can also control the drying operation based on at least one of the drying time information and the drying temperature information received through the input unit (151).

[0174] The processor (201) can also control the drying operation based on the drying course received through the input unit (151).

[0175] When controlling the drying operation, the processor (201) can control the first motor (170) to rotate the drum (120), tumbling an object within the drum (120) by the rotation of the drum, and controlling the second motor (175) to circulate air within the drum (120).

[0176] The processor (201) can control the power applied to the first and second electrodes (181, 182).

[0177] The processor (201) can control the electrode driving unit so that the power application cycle of the power applied to the first and second electrodes (181, 182) is controlled.

[0178] The processor (201) can control the electrode driving unit so that the amount of power applied to the first and second electrodes (181, 182) is controlled.

[0179] For example, the processor (201) can control the electrode driving unit so that voltages of different phases are applied to the first and second electrodes (181, 182). The processor (201) can control the electrode driving unit so that voltages of different phases are applied to the first and second electrodes.

[0180] Here, the phase voltage may include a first voltage (V1) and a second voltage (V2), which are voltages of different phases. The phase difference between the first voltage (V1) and the second voltage (V2) may be 180 degrees. That is, the processor may control the electrode driving unit so that the first voltage (V1) is applied to the first electrode (181), and control the electrode driving unit so that the second voltage (V2) is applied to the second electrode (182).

[0181] When controlling the drying operation, the processor (201) can recognize the moisture content of the object based on information detected by the sensor (190) and control at least one of the rotation speed of the first motor (170), the rotation speed of the second motor, and the power application cycle of the first and second electrodes based on the recognized moisture content.

[0182] Here, the rotation speed of the first motor may be the rotation speed of the drum. The rotation speed of the second motor may be the intensity of the suction and exhaust forces. The power application cycle of the first and second electrodes may be the heating cycle. The suction and exhaust forces are described as suction and exhaust forces.

[0183] Information detected by the sensor (190) can be determined depending on the type of sensor (190) provided in the dryer.

[0184] Let me explain this in more detail.

[0185] When a current sensor is provided as a sensor (190), the processor (201) applies a preset voltage to the first motor (170), recognizes the position of the rotor of the first motor (170) based on the current detected by the current sensor and the preset voltage, recognizes the rotation speed of the first motor (170) based on the recognized position of the rotor of the first motor (170), and when the recognized rotation speed of the first motor (170) reaches the preset rotation speed, recognizes the acceleration time during which the rotation speed of the first motor is accelerated from the time when the first motor starts to rotate to the time when the preset rotation speed is reached, and recognizes the weight of the object based on the recognized acceleration time and the preset torque.

[0186] The processor (201) can also apply a preset torque to the first motor (170) to recognize the weight of the object.

[0187] The processor (201) can periodically recognize the weight of an object, recognize the amount of change in the recognized weight for each period, and recognize the moisture content of the object based on the amount of change in the recognized weight.

[0188] The processor (201) can recognize the amount of change in acceleration time due to friction with the door (130), compensate for the voltage applied to the first motor (170) based on the recognized amount of change in acceleration time, and compensate for the weight of the object based on the amount of change in the frequency of the compensated voltage and the input power. This can improve the accuracy of recognizing the weight of the object.

[0189] When a current sensor is provided as a sensor (190), the processor (201) can control the rotation of the first motor (170) for a preset period of time and recognize the weight of an object contained in the drum (120) based on the current detected by the current sensor for the preset period of time. In this case, information on the weight of the object corresponding to the current of the first motor can be acquired through a test and stored in advance.

[0190] The processor (201) can also recognize the moisture content of the object based on the electrode impedance of the first and second electrodes (181, 182).

[0191] The processor (201) can also recognize the moisture content of the object based on changes in the voltage of the first and second electrodes (181, 182) detected by the power sensor and / or changes in electrode impedance.

[0192] When a weight sensor is provided as a sensor (190), the processor (201) can recognize the weight of an object received in the drum (120) based on information received from the weight sensor and can also recognize the moisture content of the object based on the amount of change in the weight of the recognized object.

[0193] The weight of the object can be detected by a weight sensor either periodically or in real time.

[0194] When an electrode sensor is provided as a sensor (190), the processor (201) can recognize a pulse value based on information received from the electrode sensor, and can also recognize the moisture content of the object based on the recognized pulse value.

[0195] When a humidity sensor is provided as a sensor (190), the processor (201) can recognize the humidity of the object based on information received from the humidity sensor, and can also recognize the moisture content of the object based on the amount of change in the recognized humidity.

[0196] When a temperature sensor is provided as a sensor (190), the processor (201) can recognize the temperature of the object based on information received from the temperature sensor, and can also recognize the moisture content of the object based on the amount of change in the recognized temperature. Here, the moisture content of the object corresponding to the amount of change in temperature may be information acquired through a test and stored in advance.

[0197] In this way, the processor (201) can recognize the moisture content of the object based on information detected by at least one of a current sensor, an electrode sensor, a weight sensor, a humidity sensor, and a temperature sensor.

[0198] The processor (201) can control the application cycle of the power applied to the first and second electrodes (181, 182) based on the moisture content recognized during the drying operation. When power is applied to the first and second electrodes (181, 182), heat is generated by the vibration of moisture in the object. Therefore, the application cycle of the power applied to the first and second electrodes (181, 182) may be a heating cycle.

[0199] The processor (201) can change the first reference cycle to the second reference cycle based on the recognized moisture content and the first reference moisture content, and can change the second reference cycle to the third reference cycle based on the recognized moisture content and the second reference moisture content.

[0200] For example, when the first and second reference moisture rates are set, the processor (201) controls on and off of power applied to the first and second electrodes based on the first reference period when the recognized moisture rate exceeds the first reference moisture rate, controls on and off of power applied to the first and second electrodes based on the second reference period when the recognized moisture rate is lower than or equal to the first reference moisture rate and higher than the second reference moisture rate, controls on and off of power applied to the first and second electrodes based on the third reference period when the recognized moisture rate is lower than or equal to the second reference moisture rate and higher than the target moisture rate, and can cut off power applied to the first and second electrodes (181, 182) when the recognized moisture rate reaches the target moisture rate.

[0201] The first reference moisture content may be a higher moisture content than the second reference moisture content.

[0202] Each reference period is the time it takes to perform one power on and off cycle.

[0203] The first, second and third reference periods may be different.

[0204] The first reference cycle may include a first reference on time and a first reference off time. The second reference cycle may include a second reference on time and a second reference off time. The third reference cycle may include a third reference on time and a third reference off time.

[0205] The first reference on time, the second reference on time and the third reference on time may be the same or different.

[0206] The first reference off time, the second reference off time and the third reference off time may be the same or different.

[0207] For example, the first reference on time of the first reference cycle may be approximately 2 minutes, and the first reference off time may be approximately 2 minutes. The second reference on time of the second reference cycle may be approximately 1 minute, and the second reference off time may be approximately 2 minutes. The third reference on time of the third reference cycle may be approximately 3 minutes or longer, and the third reference off time may be approximately 10 seconds or shorter. The third reference off time of the third reference cycle may be 0 minutes. The third reference cycle may be a cycle in which power is continuously applied to the first and second electrodes.

[0208] The duty ratio of the first reference cycle may be higher than the duty ratio of the second reference cycle. The duty ratios of the first and second reference cycles may be lower than the duty ratio of the third reference cycle.

[0209] As another example, when a second reference moisture content is set, the processor (201) controls on and off of power applied to the first and second electrodes based on a third reference cycle when the recognized moisture content exceeds the second reference moisture content, controls on and off of power applied to the first and second electrodes based on a fourth reference cycle when the recognized moisture content is lower than or equal to the second reference moisture content and exceeds the target moisture content, and can cut off power applied to the first and second electrodes (181, 182) when the recognized moisture content reaches the target moisture content.

[0210] The third and fourth reference periods may be the same or different.

[0211] The fourth reference off time of the fourth reference cycle may be 0 minutes. The fourth reference cycle may be a cycle in which power is continuously applied to the first and second electrodes.

[0212] The duty ratio of the third reference cycle may be equal to or lower than the duty ratio of the fourth reference cycle.

[0213] As another example, when a third reference moisture content is set, the processor (201) can control on / off of the power applied to the first and second electrodes based on the fifth reference cycle when the recognized moisture content exceeds the third reference moisture content, and can cut off the power applied to the first and second electrodes (181, 182) when the recognized moisture content is lower than or equal to the third reference moisture content.

[0214] The third reference moisture content may be equal to the target moisture content.

[0215] The duty ratio of the fifth reference cycle may be higher than the duty ratios of the first and second reference cycles.

[0216] The duty ratio of the fifth reference cycle may be lower than the duty ratios of the third and fourth reference cycles.

[0217] For example, the fifth reference on time of the fifth reference cycle may be approximately 3 minutes, and the fifth reference off time may be approximately 2 minutes.

[0218] The processor (201) can adjust the rotation speed of the first motor (170) based on the moisture content recognized during the drying operation. By adjusting the rotation speed of the first motor (170), the object can be tumbling within the drum, thereby adjusting the impact force applied to the object.

[0219] For example, the processor (201) may control the rotation of the first motor (170) based on the first reference rotation speed when the recognized moisture content exceeds the second reference moisture content, control the rotation of the first motor (170) based on the second reference rotation speed when the recognized moisture content is lower than or equal to the second reference moisture content and exceeds the target moisture content, and stop the first motor (170) when the recognized moisture content reaches the target moisture content.

[0220] The first reference rotation speed may be slower than the second reference rotation speed. For example, the first reference rotation speed may include a rotation speed of 10 to 30 rpm. The second reference rotation speed may include a rotation speed of 40 to 50 rpm.

[0221] The processor (201) can adjust the rotation speed of the second motor (175) based on the moisture content recognized during the drying operation. By adjusting the rotation speed of the second motor (175), the strength of the suction and exhaust forces of the air inside the drum can be adjusted to a first reference strength, a second reference strength, or a third reference strength.

[0222] The rotation speed of the second motor (175) corresponding to the first, second, and third reference centuries may be pre-stored information.

[0223] The processor (201) can also control two or more of the application cycle of the power applied to the first and second electrodes (181, 182), the rotation speed of the first motor (170), and the rotation speed of the second motor (175) based on the recognized moisture content.

[0224] The processor (201) recognizes a drying course received in the input unit (151), recognizes reference information and load control information corresponding to the recognized drying course based on information stored in the memory (202), recognizes a target moisture content corresponding to the recognized drying course, and can control the application cycle of power applied to the first and second electrodes (181, 182) based on the recognized reference information, load control information, recognized moisture content, and recognized target moisture content.

[0225] The processor (201) can also recognize the target moisture content based on the target dryness information received in the input unit (151).

[0226] The reference information may include information on one or more reference moisture contents per drying course.

[0227] The load may include first and second electrodes (181, 182). The load control information may include information on the power application cycle of the first and second electrodes (181, 182) distinguished by one or more reference moisture contents for each drying course.

[0228] If the drying course is a standard course, the processor (201) can recognize reference information and load control information corresponding to the standard course and recognize a target moisture content corresponding to the standard course.

[0229] The reference information corresponding to the standard course may include information on the first reference moisture content and the second reference moisture content, and the load control information may include information on the first reference cycle, the second reference cycle, and the third reference cycle, which are distinguished based on the first reference moisture content and the second reference moisture content.

[0230] As illustrated in FIG. 5, the processor (201) controls on and off of power applied to the first and second electrodes (181, 182) based on a first reference cycle when the recognized moisture content exceeds a first reference moisture content, controls on and off of power applied to the first and second electrodes (181, 182) based on a second reference cycle when the recognized moisture content is lower than or equal to the first reference moisture content and higher than a second reference moisture content, controls on and off of power applied to the first and second electrodes (181, 182) based on a third reference cycle when the recognized moisture content is lower than or equal to the second reference moisture content and higher than a target moisture content, and can cut off power applied to the first and second electrodes (181, 182) when the recognized moisture content reaches a target moisture content.

[0231] This embodiment can prevent the temperature of an object from rising by controlling the power application cycle based on the moisture content of the object, thereby preventing damage to the object. This is explained with reference to FIGS. 6A, 6B, and 7.

[0232] As shown in Fig. 6a, when the object was dried by periodically applying power to the first and second electrodes, the temperature of the object was found to be approximately between 30 and 70 degrees. However, as shown in Fig. 6b, when the object was dried by periodically applying power to the first and second electrodes, the temperature of the object was found to be approximately between 30 and 70 degrees.

[0233] As shown in Fig. 7, it can be seen that when the object is dried by periodically applying power to the first and second electrodes, the drying efficiency increases and the shrinkage rate decreases, compared to when the object is dried by hot air using a heat pump or by continuously applying power to the first and second electrodes.

[0234] When the drying course is a rapid course, the processor (201) can recognize reference information and load control information corresponding to the rapid course and recognize a target moisture content corresponding to the rapid course.

[0235] The reference information corresponding to the fast course may include information on the second reference moisture content, and the load control information may include information on the third reference cycle and the fourth reference cycle that are distinguished based on the second reference moisture content.

[0236] As illustrated in FIG. 8, the processor (201) controls on and off of power applied to the first and second electrodes based on a third reference cycle when the recognized moisture content exceeds a second reference moisture content, controls on and off of power applied to the first and second electrodes based on a fourth reference cycle when the recognized moisture content is lower than or equal to the third reference moisture content and exceeds a target moisture content, and can cut off power applied to the first and second electrodes (181, 182) when the recognized moisture content reaches the target moisture content.

[0237] When the drying course is a wool course, the processor (201) can recognize reference information and load control information corresponding to the wool course and recognize a target moisture content corresponding to the wool course.

[0238] The reference information corresponding to our course may include information on a third reference moisture content, and the load control information may include information on a fifth reference cycle distinguished based on the third reference moisture content.

[0239] As illustrated in FIG. 9, the processor (201) can control on / off of the power applied to the first and second electrodes (181, 182) based on a fifth reference cycle when the recognized moisture content exceeds the third reference moisture content, and can cut off the power applied to the first and second electrodes (181, 182) when the recognized moisture content is lower than or equal to the third reference moisture content. The target moisture content corresponding to the wool course can be the same as the third reference moisture content.

[0240] The third reference moisture content may be lower than the first reference moisture content and higher than the second reference moisture content. For example, the first reference moisture content may be approximately 40%, the second reference moisture content may be approximately 10%, and the third reference moisture content may be approximately 15%.

[0241] The target moisture content corresponding to the standard course and the fast course may be approximately 0.4%, and the target moisture content corresponding to the wool course may be approximately 15%.

[0242] The processor (201) recognizes a drying course received in the input unit (151), recognizes reference information and load control information corresponding to the recognized drying course based on information stored in the memory (202), and can control the rotation speed of the first motor (170) based on the recognized reference information, load control information, and recognized moisture content.

[0243] The load may include a first motor (170).

[0244] The load control information may include information on the reference rotation speed of the first motor (170) distinguished by one or more reference moisture contents for each drying course.

[0245] The load control information corresponding to the standard course and the fast course, respectively, may include information on the first reference rotation speed and the second reference rotation speed, which are distinguished based on the second reference moisture content. In this case, the processor (201) controls the rotation of the first motor (170) based on the first reference rotation speed when the recognized moisture content exceeds the second reference moisture content, controls the rotation of the first motor (170) based on the second reference rotation speed when the recognized moisture content is lower than or equal to the second reference moisture content and exceeds the target moisture content, and may stop the first motor (170) when the recognized moisture content reaches the target moisture content.

[0246] The dryer of this embodiment rapidly increases the temperature of the object upon initiation of drying, as electromagnetic waves pass through the object and directly heat water molecules. Therefore, simply rotating the first motor at the first reference speed facilitates smooth diffusion of water vapor, thereby achieving excellent drying performance.

[0247] The load control information corresponding to the wool course may include information on the first reference rotation speed. In this case, the processor (201) may control the rotation of the first motor (170) based on the first reference rotation speed if the recognized moisture content exceeds the third reference moisture content, and may control the rotation of the first motor (170) to be stopped if the recognized moisture content is lower than or equal to the third reference moisture content.

[0248] The processor (201) recognizes the drying course received in the input unit (151), recognizes reference information and load control information corresponding to the recognized drying course based on information stored in the memory (202), and can control the rotation speed of the second motor (175) based on the recognized reference information, load control information, and recognized moisture content.

[0249] The load may include a second motor (175).

[0250] The load control information may include information on the strength of the suction and exhaust force for each drying course and information on the rotation speed of the second motor for each strength of the suction and exhaust force.

[0251] The load control information corresponding to each standard course may include information on the second reference intensity and the third reference intensity, which are distinguished based on the second reference moisture content. In this case, the processor (201) controls the rotation of the second motor (175) based on the second reference intensity when the recognized moisture content exceeds the second reference moisture content, controls the rotation of the second motor (175) based on the third reference intensity when the recognized moisture content is lower than or equal to the second reference moisture content and exceeds the target moisture content, and may stop the second motor (175) when the recognized moisture content reaches the target moisture content.

[0252] The second reference century may be stronger than the third reference century.

[0253] The load control information corresponding to each rapid course may include information on the first reference intensity. In this case, the processor (201) may control the rotation of the second motor (175) based on the first reference intensity if the recognized moisture content exceeds the target moisture content, and may stop the second motor (175) if the recognized moisture content is lower than the target moisture content.

[0254] A fan (160) rotated by a second motor causes forced convection by ambient airflow, thereby causing moisture vapor within the drum to escape to the outside. The stronger the forced convection by the fan (160), the faster moisture diffusion is induced, shortening the drying time and preventing damage to fabrics.

[0255] The first reference century may be stronger than the second and third reference centuries.

[0256] The load control information corresponding to the wool course may include information on the second reference moisture content. In this case, the processor (201) may control the rotation of the second motor (175) based on the second reference moisture content if the recognized moisture content exceeds the third reference moisture content, and may control the rotation of the second motor (175) to be stopped if the recognized moisture content is lower than or equal to the third reference moisture content.

[0257] The processor (201) recognizes a drying course received at the input unit (151), recognizes reference information and load control information corresponding to the recognized drying course based on information stored in the memory (202), and can also control two or more of the application cycle of power applied to the first and second electrodes (181, 182), the rotation speed of the first motor, and the rotation speed of the second motor based on the recognized reference information, load control information, and recognized moisture content.

[0258] This embodiment can minimize damage to an object by preventing a temperature rise of the object by increasing the intensity of the suction and exhaust force as the rotation speed of the fan increases, and can improve drying efficiency by achieving low-temperature drying and reducing energy consumption at the same time by inducing uniform and rapid drying by varying the rotation speed of the drum.

[0259] As illustrated in FIG. 10, the processor (201) obtains information on the temperature of the object according to the drying time for each drying course from the memory (202), recognizes the temperature of the object based on the information of the obtained memory, the current drying time, and the recognized moisture content, and when the recognized temperature of the object exceeds a reference temperature, it can adjust at least one of the power application cycle, the rotation speed of the first motor, and the intensity of the intake and exhaust force.

[0260] Information on the temperature of the object according to the drying time for each drying course may be information obtained and stored according to the moisture content of the object through testing.

[0261] For example, the processor (201) may increase the reference off time of the power application cycle when the temperature of the recognized object exceeds the reference temperature. The processor (201) may recognize the reference off time based on the difference value between the temperature of the recognized object and the reference temperature, and adjust the power application cycle based on the recognized reference off time.

[0262] The processor (201) can control the rotation speed of the second motor so that the intensity of the suction and exhaust force increases when the temperature of the recognized object exceeds the reference temperature.

[0263] The processor (201) can receive information on the material of the object from the input unit (151). The processor (201) can also recognize the material of the object based on changes in the moisture content of the object in the drum over a certain period of time from the start of the drying operation.

[0264] The processor (201) can also set the first, second, and third reference moisture content and target moisture content based on the material of the target object.

[0265] For example, when the material of the target object is cotton or polyester, the processor (201) may set the first reference moisture content to approximately 40%, the second reference moisture content to approximately 10%, and the target moisture content to approximately 0.4%.

[0266] As another example, the processor (201) may set the third reference moisture content to approximately 15% when the material of the target object is wool or rayon. Here, the third reference moisture content may be the same as the target moisture content.

[0267] The memory (202) can store reference information and load control information for each drying course.

[0268] The memory (202) can store information on one or more reference moisture contents per drying course and can store information on a target moisture contents per drying course.

[0269] The memory (202) can store information about the first, second, third, fourth, and fifth reference periods, the first and second reference rotation speeds, and the first, second, and third reference intensities.

[0270] The memory (202) can store information about the first, second, and third target rotation speeds of the second motor (175) corresponding to the first, second, and third reference centuries.

[0271] The memory (202) can store information about the weight corresponding to the current of the first motor (170) and information about the moisture content corresponding to the amount of change in the weight.

[0272] The memory (202) can also store information on the moisture content corresponding to the pulse value of the electrode sensor.

[0273] The memory (202) can store information about the temperature of the object according to the drying time for each drying course.

[0274] Information about the temperature of the object according to the drying time for each drying course may be information stored according to the moisture content of the object.

[0275] The memory (202) can store information on one or more reference moisture content and target moisture content for each material of the target object.

[0276] The dryer (1) may further include a communication unit (210).

[0277] The communication unit (210) may perform wired and / or wireless communication with an external device, or may perform communication between components inside the dryer (1).

[0278] The communication unit (210) can transmit data to an external device (e.g., a server, a user device, and / or a home appliance), or receive data from the external device. For example, the communication unit (210) can establish communication with a server and / or a user device and / or a home appliance, and transmit and receive various data. For example, the communication unit (210) can receive drying operation information corresponding to a drying course from a server (not shown) and transmit the received drying operation information to the processor (201). As another example, the communication unit (210) can receive a remote control signal from a user device and transmit the received remote control signal to the processor (201).

[0279] The communication unit (210) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between external devices, and the performance of communication through the established communication channel. According to one embodiment, the communication unit (210) may include a wireless communication module (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (e.g., a local area network (LAN) communication module, or a power line communication module).

[0280] The communication unit (210) can communicate with an external device via a first network (e.g., a short-range communication network such as Bluetooth, WiFi (wireless fidelity) direct, or IrDA (infrared data association)) or a second network (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules can be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips).

[0281] The short-range wireless communication module may include, but is not limited to, a Bluetooth communication module, a BLE (Bluetooth Low Energy) communication module, a near field communication module, a WLAN (Wi-Fi) communication module, a Zigbee communication module, an infrared (IrDA, infrared Data Association) communication module, a WFD (Wi-Fi Direct) communication module, an UWB (ultrawideband) communication module, an Ant+ communication module, a microwave (uWave) communication module, etc.

[0282] The long-distance communication module may include a communication module that performs various types of long-distance communication and may include a mobile communication unit. The mobile communication unit transmits and receives wireless signals with at least one of a base station, an external terminal, and a server on a mobile communication network.

[0283] The communication unit (210) can communicate with external devices such as servers, user devices, and other home appliances through a surrounding access point (AP). The access point (AP) can connect a local area network (LAN) to which the dryer or user device is connected to a wide area network (WAN) to which the server is connected.

[0284] At least one component may be added or deleted to correspond to the performance of the components of the dryer illustrated in FIG. 4. Furthermore, it will be readily apparent to those skilled in the art that the relative positions of the components may be altered to correspond to the performance or structure of the dryer.

[0285] Meanwhile, each component illustrated in FIG. 4 refers to software and / or hardware components such as a Field Programmable Gate Array (FPGA) and an Application Specific Integrated Circuit (ASIC).

[0286] Fig. 11 is a control flowchart of a dryer according to one embodiment.

[0287] The dryer recognizes reference information and load control information corresponding to the received drying course (252) based on the drying course being received from the input unit (151).

[0288] The reference information may include information on one or more reference moisture contents per drying course.

[0289] The load may include at least one of the first and second electrodes (181, 182), the first motor and the second motor.

[0290] The load control information may include information about the first, second, third, fourth, and fifth reference cycles for applying power to the first and second electrodes (181, 182), the first and second reference rotation speeds related to the rotation speed of the first motor, and the first, second, and third reference intensities related to the rotation speed of the second motor.

[0291] The rotation speed of the first motor can include the rotation speed of the drum.

[0292] The rotation speed of the second motor may include the rotation speed of the fan.

[0293] The dryer can recognize a target moisture content corresponding to a recognized drying course.

[0294] When the drying operation starts, the dryer can recognize the moisture content of the object based on information detected by the sensor (190) (253).

[0295] An example of a configuration that recognizes the moisture content of an object is described.

[0296] When a current sensor is provided as a sensor (190), the dryer applies a preset voltage to the first motor (170), recognizes the position of the rotor of the first motor (170) based on the current detected by the current sensor and the preset voltage, recognizes the rotation speed of the first motor (170) based on the recognized position of the rotor of the first motor (170), and when the recognized rotation speed of the first motor (170) reaches the preset rotation speed, recognizes the acceleration time during which the rotation speed of the first motor is accelerated from the time when the first motor starts to rotate to the time when the preset rotation speed is reached, and recognizes the weight of the object based on the recognized acceleration time and the preset torque.

[0297] The dryer can periodically recognize the weight of the object, recognize the change in the recognized weight for each cycle, and recognize the moisture content of the object based on the change in the recognized weight.

[0298] When a weight sensor is provided as a sensor (190), the dryer can recognize the weight of an object received in the drum (120) based on information received from the weight sensor and recognize the moisture content of the object based on the amount of change in the recognized weight of the object.

[0299] The weight of the object can be detected by a weight sensor either periodically or in real time.

[0300] When an electrode sensor is provided as a sensor (190), the dryer can recognize a pulse value based on information received from the electrode sensor, and can also recognize the moisture content of the object based on the recognized pulse value.

[0301] The dryer can control at least one of the power application cycle for the power applied to the first and second electrodes (181, 182), the rotation speed of the first motor, and the intensity of the suction and exhaust force based on the recognized reference information, load control information, and recognized moisture content (254).

[0302] The load may include at least one of the first and second electrodes (181, 182), the first motor (170) and the second motor (175).

[0303] The power application cycle for the power applied to the first and second electrodes (181, 182) may be a heating cycle for applying heat to the target object.

[0304] The dryer can terminate the drying operation (256) based on the perceived moisture content reaching the perceived target moisture content (255).

[0305] Below, a configuration is described that controls at least one of the power application cycle, the rotation speed of the first motor, and the intensity of the intake and exhaust force for each drying course, and terminates the drying operation.

[0306] The dryer can recognize reference information and load control information corresponding to the standard course based on the recognition that the received drying course is a standard course, and can recognize a target moisture content corresponding to the standard course. The target moisture content corresponding to the standard course may be approximately 0.4%.

[0307] Reference information corresponding to the standard course may include information on the first reference moisture content and the second reference moisture content.

[0308] Load control information corresponding to the standard course may include information on a first reference cycle, a second reference cycle, and a third reference cycle for controlling on / off of power applied to the first and second electrodes, and may include information on a first reference rotation speed and a second reference rotation speed, and information on a second and third reference intensities. Information on the second and third reference intensities may include information on a rotation speed of the second motor (175).

[0309] When the moisture content recognized during the drying operation in the standard course exceeds the first reference moisture content, the dryer can control the on / off of the power applied to the first and second electrodes (181, 182) based on the first reference cycle, control the rotation of the first motor (170) based on the first reference rotation speed, and control the rotation of the second motor (175) based on the second reference strength.

[0310] For example, the dryer can quickly evaporate the moisture in the object by applying power to the first and second electrodes for 2 minutes from 60% to 40% of the moisture content of the object, repeating the process of cutting off the power applied to the first and second electrodes for 2 minutes, and controlling the rotation of the second motor based on the second target rotation speed to generate a suction and exhaust force of a second reference strength. The dryer can diffuse the moisture in the object into the drum by controlling the low-speed rotation of the first motor at the first reference rotation speed (10-30 rpm).

[0311] When the moisture content recognized during the drying operation in the standard course is lower than or equal to the first reference moisture content and higher than the second reference moisture content, the dryer controls the on / off of the power applied to the first and second electrodes (181, 182) based on the second reference cycle, controls the rotation of the first motor (170) based on the first reference rotation speed, and controls the rotation of the second motor (175) based on the second reference strength.

[0312] For example, the dryer can repeat the process of applying power to the first and second electrodes for 1 minute from 40% to 10% of the moisture content of the object, and then cutting off the power applied to the first and second electrodes for 2 minutes. At this time, the dryer can quickly evaporate the moisture of the object by generating an intake and exhaust force of a second reference intensity by controlling the rotation of the second motor based on the second target rotation speed, and can diffuse the moisture of the object into the drum by controlling the low-speed rotation of the first motor at the first reference rotation speed (10-30 rpm).

[0313] When the moisture content recognized during the drying operation in the standard course is lower than or equal to the second reference moisture content and exceeds the target moisture content, the dryer controls the on / off of the power applied to the first and second electrodes (181, 182) based on the third reference cycle, controls the rotation of the first motor (170) based on the second reference rotation speed, and controls the rotation of the second motor (175) based on the third reference strength.

[0314] The third reference century may be weaker than the second reference century.

[0315] When the dryer controls the rotation of the second motor based on the second reference century, it can recognize a second target rotation speed corresponding to the second reference century and control the rotation of the second motor based on the recognized second target rotation speed.

[0316] When the dryer controls the rotation of the second motor based on the third reference century, it can recognize a third target rotation speed corresponding to the third reference century and control the rotation of the second motor based on the recognized third target rotation speed.

[0317] For example, the dryer can compensate for the decrease in the moisture evaporation rate by continuously applying power to the first and second electrodes from the moisture content of the object of 10% to the target moisture content. In addition, the dryer controls the rotation of the first motor based on the second reference rotation speed to rotate the drum at a rotation speed of 40-50 rpm, thereby causing the object inside to tumble within the drum, and lowers the intensity of the suction and exhaust force to the third reference intensity to alleviate wrinkling of the object of interest while reducing shrinkage, thereby preventing damage to the fabric.

[0318] The dryer can cut off the power applied to the first and second electrodes (181, 182) and stop the first motor (170) and the second motor (175) when the moisture content recognized during drying operation reaches the target moisture content in a standard course.

[0319] The dryer can recognize reference information and load control information corresponding to the rapid course based on the recognition that the received drying course is a rapid course, and can recognize a target moisture content corresponding to the rapid course. The target moisture content corresponding to the rapid course may be approximately 0.4%.

[0320] The reference information corresponding to the fast course may include information on the second reference moisture content.

[0321] Load control information corresponding to the rapid course may include information on the third and fourth reference cycles for controlling on and off of power applied to the first and second electrodes, information on the first reference rotation speed and the second reference rotation speed, and information on the first reference intensity.

[0322] The first reference intensity may be greater than the second and third reference intensities. Information about the first reference intensity may include information about the rotational speed of the second motor.

[0323] The dryer can control the on / off of the power applied to the first and second electrodes based on a third reference cycle when the moisture content recognized during the drying operation in the rapid course exceeds the second reference moisture content, control the rotation of the first motor (170) based on the first reference rotation speed, and control the rotation of the second motor (175) based on the first reference strength.

[0324] The express course is a course designed to shorten the drying time of the standard course.

[0325] For example, the dryer continuously applies power to the first and second electrodes from 60% to 10% of the moisture content of the object, controls the rotation of the first motor (170) based on the first reference rotation speed, thereby rotating the drum at a rotation speed of 10-30 rpm, and controls the strength of the suction and exhaust force to the first reference strength, thereby improving the drying speed of the object.

[0326] The dryer can control the on / off of the power applied to the first and second electrodes based on the fourth reference cycle when the moisture content recognized during the drying operation in the rapid course is lower than the third reference moisture content and exceeds the target moisture content, control the rotation of the first motor (170) based on the second reference rotation speed, and control the rotation of the second motor (175) based on the first reference strength.

[0327] When controlling the rotation of the second motor, the dryer can recognize a first target rotation speed corresponding to the first reference century and control the rotation of the second motor based on the recognized first target rotation speed.

[0328] For example, the dryer controls the rotation of the first motor (170) based on the second reference rotation speed from the moisture content of the object of 10% to the target moisture content, thereby rotating the drum at a rotation speed of 40-50 rpm, thereby causing the object inside to tumble within the drum, thereby minimizing damage to the object by alleviating wrinkles and reducing shrinkage of the object.

[0329] The dryer can cut off the power applied to the first and second electrodes (181, 182) and stop the first motor (170) and the second motor (175) when the moisture content recognized during the drying operation reaches the target moisture content in the rapid course.

[0330] The dryer can recognize reference information and load control information corresponding to the wool course based on recognizing that the received drying course is a wool course, and can recognize a target moisture content corresponding to the wool course.

[0331] The reference information corresponding to our course may include information on the third reference moisture content.

[0332] The load control information corresponding to the wool course may include information on a fifth reference cycle for controlling on / off of power applied to electrodes 1 and 2, information on a first reference rotation speed, and information on a second reference intensity.

[0333] The target moisture content corresponding to our course may be the same as the third reference moisture content.

[0334] The dryer can control the on / off of the power applied to the first and second electrodes (181, 182) based on the fifth reference cycle when the moisture content recognized during the drying operation in the wool course exceeds the third reference moisture content, control the rotation of the first motor (170) based on the first reference rotation speed, and control the rotation of the second motor (175) based on the second reference strength.

[0335] When controlling the rotation of the second motor, the dryer can recognize a second target rotation speed corresponding to the second reference century and control the rotation of the second motor based on the recognized second target rotation speed.

[0336] The wool course or delicate course can be used to dry objects that experience significant shrinkage due to mechanical stress and moisture evaporation. Objects dried using this wool course have larger pores than those dried using other drying courses, allowing water vapor to diffuse relatively easily.

[0337] The dryer can control the power application cycle applied to the first and second electrodes based on the fifth reference cycle relatively to the standard course and the rapid course. For example, when the moisture content of the object exceeds the third reference moisture content, the dryer can apply power to the first and second electrodes for 3 minutes (the fifth reference on time) and cut off the power applied to the first and second electrodes for 2 minutes (the fifth reference off time). In addition, the dryer can control the rotation of the first motor (170) based on the first reference rotation speed so that the drum rotates at a rotation speed of 10-30 rpm, and control the intensity of the suction and exhaust force to the second reference intensity to reduce shrinkage of the object and prevent damage to the fabric.

[0338] The dryer can cut off the power applied to the first and second electrodes (181, 182) and stop the first and second motors (170, 175) when the moisture content recognized during the drying operation in the wool course is lower than the third reference moisture content. The target moisture content corresponding to the wool course can be the same as the third reference moisture content.

[0339] The third reference moisture content may be lower than the first reference moisture content and higher than the second reference moisture content. For example, the first reference moisture content may be approximately 40%, the second reference moisture content may be approximately 10%, and the third reference moisture content may be approximately 15%.

[0340] The target moisture content corresponding to our course may be approximately 15%.

[0341] Fig. 12 is an exemplary diagram of a dryer according to another embodiment. The dryer according to another embodiment may be a flat-plate dryer.

[0342] As illustrated in FIG. 12, the dryer (4) may include a main body (410) forming an exterior, a drying room (420) provided inside the main body (410) and accommodating an object, a door (430) provided on the outside of the main body (410), and a fan (460) for circulating air in the drying room (420).

[0343] The main body (410) may have the shape of a rectangular solid. However, this is an example for convenience of explanation, and the main body (410) may of course be implemented in various shapes.

[0344] The drying room (420) is a space formed within the main body (410) and can be formed in a rectangular solid shape.

[0345] The object introduced into the drying room (420) can be accommodated within the drying room (420) and dried by an electric field introduced into the drying room (420).

[0346] The drying room (420) may include an intake port for sucking in air and an exhaust port for discharging air containing moisture to the outside of the drying room (420).

[0347] The door (430) may be a square that corresponds to the shape of the opening of the main body (410) or the opening of the drying room (420).

[0348] The door (430) can be pivotally connected to the front of the main body (410). For example, the door (430) can be connected to a hinge provided on the front surface of the main body (410) adjacent to the door (430) and rotate around the hinge.

[0349] The door (430) can also slide left and right or up and down.

[0350] The door (430) can be brought into contact with a surface forming an opening of the main body (410) to open the opening of the main body (410), or can be separated from the surface forming the opening of the main body (410) to close the opening.

[0351] The door (430) can be opened or closed to allow the drying room (420) to be opened.

[0352] At least a portion of the door (430) may be made transparent or translucent so that the interior of the main body can be seen.

[0353] The fan (460) may be configured to be rotatable. The fan (460) may supply air to the drying room (460) and allow the air in the drying room (460) to be discharged to the outside.

[0354] The dryer (4) may include a heating unit (480) that generates heat for drying an object accommodated in a drum. The heating unit (480) may be a device that generates heat by causing a dielectric to vibrate using a radio frequency. The heating unit (480) may include a plurality of electrodes (181, 182) provided on the main body (410). The plurality of electrodes may be two or more.

[0355] For example, the heating unit (180) of the dryer (4) may include first and second electrodes (481, 482).

[0356] The first and second electrodes (481, 482) may be spaced apart from each other outside the drying room (420). For example, one of the first and second electrodes (481, 482) may be provided on the upper side of the main body (410), and the other may be provided on the lower side of the main body (410).

[0357] When voltage is applied to the first and second electrodes (481, 482), an electric field can be generated in the drying chamber (420). When an electric field is applied to the dielectric, polarization occurs due to the movement of charged bodies such as electrons and ions contained within the dielectric, and the polar dipoles of the sign try to change direction in the direction of the electric field. In the case of a high-frequency alternating current of several to several tens of MHz, where the polarity changes millions of times per second, the friction caused by the violent movement of the dipoles trying to follow the reversal of the electric field generates heat.

[0358] That is, the electric field generated in the drying room (420) can vibrate the dielectric (e.g., water molecules) contained in the object, and when the dielectric (e.g., water molecules) vibrates, dipole frictional heat is generated, which can heat the dielectric. The object can be dried by evaporating the heated dielectric. The evaporated dielectric can be discharged outside the drying room (420) together with the air supplied to the drying room (420).

[0359] Fig. 13 is a control configuration diagram of a dryer according to another embodiment, which is described with reference to Figs. 14 and 15a, 15b, and 15c.

[0360] Fig. 14 is an example diagram of the control of the power application cycle corresponding to the standard course of a dryer according to another embodiment, and Figs. 15a, 15b and 15c are temperature graphs for each material of an object dried in a dryer according to another embodiment.

[0361] A dryer (4) according to another embodiment may include a user interface (450), a motor (475), a heating unit (480), a sensor (490), and a control unit (400), and may further include a communication unit (410).

[0362] The user interface (450) and heating unit (480) of the dryer (4) according to another embodiment are identical to the user interface (150) and heating unit (180) of the dryer according to one embodiment, and thus a detailed description thereof is omitted.

[0363] The user interface (450) may be an input / output device for interaction between a user and the dryer.

[0364] The user interface (450) may include an input unit (451) for receiving user input and an output unit (452, 453) for outputting various operating information of the dryer.

[0365] The input unit (451) can receive a power on command, a power off command, and a pause command, and can receive information about a drying course and options selected by the user.

[0366] Drying courses may include a standard course, a quick course, and a wool course, and may further include a synthetic fiber course, a shirt course, a quilt course, a towel course, an outdoor course, and an artificial intelligence course.

[0367] Option information may include drying time information, target dryness information, drying temperature information, material information of the object (cotton, wool, polyester, rayon, etc.), and type information of the object (blanket, clothes, towel, etc.).

[0368] The output unit can visually or audibly convey information related to the operation of the dryer to the user. For example, the output unit can convey information related to the drying cycle and options selected by the user.

[0369] The output section may include a display section (452) and may further include a speaker (453).

[0370] The motor (475) is connected to the fan (460) and applies rotational force to the fan (460).

[0371] The motor (475) can rotate at a rotation speed and in a rotation direction corresponding to the control command of the processor (401).

[0372] The dryer (4) may further include a motor driver (not shown) for driving a motor (475). In this case, the motor driver may generate an operation signal based on a control command of the processor (401) and transmit the generated operation signal to the motor (475).

[0373] The heating unit (480) may be a device for heating an object accommodated in a drying room (420). In this case, water contained in the object may be heated by the heating unit (480).

[0374] The heating unit (480) may include a first electrode (481), a second electrode (482), and an electrode driving unit (483, 484, 485, 486, 487, 488).

[0375] The first electrode (481) and the second electrode (482) are placed at a certain distance apart and form an electric field inside the drum.

[0376] The electrode driving unit may include a DC power supply unit (484), an RF power supply unit (485), a phase shifter (486), a coupler (487), and a matching circuit (488).

[0377] The configuration of the electrode driving unit of another embodiment is the same as the configuration of the electrode driving unit of one embodiment, so description thereof is omitted.

[0378] The sensor (490) detects information necessary to recognize the moisture content of an object accommodated in the drying room (420).

[0379] The sensor (490) may be provided in the drying room (420) and may include a contact sensor provided at a location that can come into contact with an object accommodated in the drying room (420).

[0380] A contact sensor can output an electrical signal in response to contact with an object. The electrical signal can include a current signal or a voltage signal.

[0381] The magnitude of the electrical signal may vary depending on the amount of moisture contained in the object. The contact sensor can output an electrical signal corresponding to the amount of moisture contained in the contacted object.

[0382] The contact sensor may be a plate bar type touch sensor, an electrode sensor or a switch sensor.

[0383] The sensor (490) may also include a weight sensor that detects the weight of an object accommodated in the drying room (420).

[0384] The sensor (490) is provided adjacent to the exhaust port of the drying room (420) and may include a humidity sensor that detects the humidity of the air discharged through the exhaust port.

[0385] The sensor (490) is provided adjacent to the exhaust port of the drying room (420) and may include a temperature sensor that detects the temperature of air discharged through the exhaust port.

[0386] The control unit (400) can be electrically connected to components of the dryer (4) and can control the components of the dryer (4). For example, the control unit (400) can control the motor (475). The control unit (400) can control the electrode drive unit to apply power to the first and second electrodes (481, 482).

[0387] The control unit (400) may be implemented with a memory (402) that stores data on an algorithm for controlling the operation of components within the dryer (4) or a program that reproduces the algorithm, and a processor (401) that performs the aforementioned operation using the data stored in the memory (402). In this case, the memory (401) and the processor (402) may each be implemented as separate chips. Alternatively, the memory (401) and the processor (402) may be implemented as a single chip. In addition, a plurality of processors and a plurality of memories may be provided.

[0388] The processor (401) can process various data and various signals using instructions, data, programs and / or software stored in the memory (202).

[0389] The processor (401) may include one core or multiple cores. The processor (401) may include a separate NPU that performs the operation of an artificial intelligence model, and may include a graphics processor (GPU), etc.

[0390] The memory (402) may be implemented as at least one of a non-volatile memory element such as a cache, a ROM (Read Only Memory), a PROM (Programmable ROM), an EPROM (Erasable Programmable ROM), an EEPROM (Electrically Erasable Programmable ROM), and a flash memory, a volatile memory element such as a RAM (Random Access Memory), or a storage medium such as a hard disk drive (HDD) or a CD-ROM, but is not limited thereto.

[0391] The memory (402) may include one or more memory chips or one or more memory blocks.

[0392] The processor (401) and memory (402) will be described in more detail.

[0393] The processor (401) can also recognize the target moisture content based on the target dryness information received through the input unit (451) and control the drying operation based on the recognized target moisture content.

[0394] The processor (401) can also control the drying operation based on at least one of the drying time information and the drying temperature information received through the input unit (451).

[0395] The processor (401) can also control the drying operation based on the drying course received through the input unit (451).

[0396] The processor (401) can control the motor (475) to circulate air within the drying room (420) when controlling the drying operation.

[0397] The processor (401) can control the power applied to the first and second electrodes (481, 482).

[0398] The processor (401) can control the amount of power applied to the first and second electrodes (481, 482) and control the on / off of the power applied to the first and second electrodes (481, 482).

[0399] When controlling the drying operation, the processor (401) can recognize the moisture content of the object based on information detected by the sensor (490) and control the power application cycle of the first and second electrodes (481, 482) based on the recognized moisture content. Here, the power application cycle of the first and second electrodes (481, 482) may be a heating cycle.

[0400] When controlling the drying operation, the processor (401) can recognize the moisture content of the object based on information detected by the sensor (490) and control the rotation speed of the motor (475) based on the recognized moisture content. The rotation speed of the motor (475) may be the strength of the suction force and the exhaust force. The suction force and the exhaust force are described as the suction and exhaust force.

[0401] The information detected by the sensor (490) can be determined depending on the type of sensor (190) provided in the dryer. This will be described in more detail.

[0402] When a weight sensor is provided as a sensor (490), the processor (401) can recognize the weight of an object accommodated in the drying room (420) based on information received from the weight sensor and recognize the moisture content of the object based on the amount of change in the recognized weight of the object.

[0403] The weight of the object can be detected by a weight sensor either periodically or in real time.

[0404] When an electrode sensor is provided as a sensor (490), the processor (401) can recognize a pulse value based on information received from the electrode sensor, and can also recognize the moisture content of the object based on the recognized pulse value.

[0405] When a humidity sensor is provided as a sensor (490), the processor (401) can recognize the humidity of the object based on information received from the humidity sensor, and can also recognize the moisture content of the object based on the amount of change in the recognized humidity.

[0406] When a temperature sensor is provided as a sensor (490), the processor (401) can recognize the temperature of the object based on information received from the temperature sensor, and can also recognize the moisture content of the object based on the amount of change in the recognized temperature. Here, the moisture content of the object corresponding to the amount of change in temperature may be information acquired through a test and stored in advance.

[0407] In this way, the processor (401) can recognize the moisture content of the object based on information detected by at least one of an electrode sensor, a weight sensor, a humidity sensor, and a temperature sensor.

[0408] The processor (401) can control the application cycle of the power applied to the first and second electrodes (481, 482) based on the moisture content recognized during the drying operation. When power is applied to the first and second electrodes (481, 482), heat is generated by the vibration of moisture in the object. Therefore, the application cycle of the power applied to the first and second electrodes (481, 482) may be a heating cycle.

[0409] The processor (401) can change the first reference cycle to the second reference cycle based on the recognized moisture content and the first reference moisture content, and can change the second reference cycle to the third reference cycle based on the recognized moisture content and the second reference moisture content.

[0410] For example, the processor (401) controls on and off of power applied to the first and second electrodes based on a first reference period when the recognized moisture content exceeds a first reference moisture content, controls on and off of power applied to the first and second electrodes based on a second reference period when the recognized moisture content is lower than or equal to the first reference moisture content and higher than a second reference moisture content, controls on and off of power applied to the first and second electrodes based on a third reference period when the recognized moisture content is lower than or equal to the second reference moisture content and higher than a target moisture content, and can cut off power applied to the first and second electrodes (481, 482) when the recognized moisture content reaches a target moisture content.

[0411] The first reference moisture content may be a higher moisture content than the second reference moisture content.

[0412] Each reference period is the time it takes to perform one power on and off cycle.

[0413] The first, second and third reference periods may be different.

[0414] The first reference cycle may include a first reference on time and a first reference off time. The second reference cycle may include a second reference on time and a second reference off time. The third reference cycle may include a third reference on time and a third reference off time.

[0415] The first reference on time, the second reference on time and the third reference on time may be the same or different.

[0416] The first reference off time, the second reference off time and the third reference off time may be the same or different.

[0417] For example, the first reference on time of the first reference cycle may be approximately 2 minutes, and the first reference off time may be approximately 2 minutes. The second reference on time of the second reference cycle may be approximately 1 minute, and the second reference off time may be approximately 2 minutes. The third reference on time of the third reference cycle may be approximately 3 minutes or longer, and the third reference off time may be approximately 10 seconds or shorter. The third reference off time of the third reference cycle may be 0 minutes. The third reference cycle may be a cycle in which power is continuously applied to the first and second electrodes.

[0418] The duty ratio of the first reference cycle may be higher than the duty ratio of the second reference cycle. The duty ratios of the first and second reference cycles may be lower than the duty ratio of the third reference cycle.

[0419] The processor (401) can adjust the rotation speed of the motor (475) based on the moisture content recognized during the drying operation. By adjusting the rotation speed of the motor (475), the strength of the suction and exhaust force of the air inside the drum can be adjusted to a first reference strength, a second reference strength, or a third reference strength.

[0420] The target rotation speed of the motor (475) corresponding to the first, second, and third reference centuries may be pre-stored information.

[0421] The processor (401) can also control both the application cycle of the power applied to the first and second electrodes (481, 482) and the rotation speed of the motor based on the recognized moisture content.

[0422] The processor (401) recognizes a drying course received at the input unit (451), recognizes reference information and load control information corresponding to the recognized drying course based on information stored in the memory (402), recognizes a target moisture content corresponding to the recognized drying course, and can control the application cycle of power applied to the first and second electrodes (481, 482) based on the recognized reference information, load control information, recognized moisture content, and recognized target moisture content.

[0423] The processor (401) can also recognize the target moisture content based on the target dryness information received at the input unit (451).

[0424] The reference information may include information on one or more reference moisture contents per drying course.

[0425] The load may include first and second electrodes (481, 482). The load control information may include information on the power application cycle of the first and second electrodes (481, 482) distinguished by one or more reference moisture contents for each drying course.

[0426] If the drying course is a standard course, the processor (401) can recognize reference information and load control information corresponding to the standard course and recognize a target moisture content corresponding to the standard course.

[0427] The reference information corresponding to the standard course may include information on the first reference moisture content and the second reference moisture content, and the load control information may include information on the first reference cycle, the second reference cycle, and the third reference cycle, which are distinguished based on the first reference moisture content and the second reference moisture content.

[0428] As illustrated in FIG. 14, the processor (401) controls on and off of power applied to the first and second electrodes (481, 482) based on a first reference cycle when the recognized moisture content exceeds a first reference moisture content, controls on and off of power applied to the first and second electrodes (481, 482) based on a second reference cycle when the recognized moisture content is lower than or equal to the first reference moisture content and higher than a second reference moisture content, controls on and off of power applied to the first and second electrodes (481, 482) based on a third reference cycle when the recognized moisture content is lower than or equal to the second reference moisture content and higher than a target moisture content, and can cut off power applied to the first and second electrodes (481, 482) when the recognized moisture content reaches a target moisture content.

[0429] This embodiment can prevent the temperature of an object from rising by controlling the power application cycle based on the moisture content of the object, thereby preventing damage to the object.

[0430] When the drying course is a rapid course or a wool course, the control of the power application cycle of the first and second electrodes of the processor (401) is the same as the control of the power application cycle of the first and second electrodes in one embodiment, and thus, the description thereof is omitted.

[0431] The processor (401) recognizes a drying course received in the input unit (451), recognizes reference information and load control information corresponding to the recognized drying course based on information stored in the memory (402), and can control the rotation speed of the motor (475) based on the recognized reference information, load control information, and recognized moisture content.

[0432] In the case of a standard course, a rapid course or a wool course, the control of the rotation speed of the motor of the processor (401) is the same as the control of the rotation speed of the second motor in one embodiment, and thus, the description thereof is omitted.

[0433] The processor (401) recognizes the drying course received in the input unit (151), recognizes reference information and load control information corresponding to the recognized drying course based on information stored in the memory (402), and controls the rotation speed of the motor and the application cycle of the power applied to the first and second electrodes (481, 482) based on the recognized reference information, load control information, and recognized moisture content.

[0434] This embodiment can minimize damage to an object by preventing a temperature rise of the object by increasing the intensity of the suction and exhaust force as the rotation speed of the fan increases, and can improve drying efficiency by achieving low-temperature drying and reducing energy consumption at the same time by inducing uniform and rapid drying by varying the rotation speed of the drum.

[0435] The processor (401) obtains information on the temperature of the object according to the drying time for each drying course from the memory (402), recognizes the temperature of the object based on the information of the obtained memory, the current drying time, and the recognized moisture content, and when the temperature of the recognized object exceeds a reference temperature, it can adjust at least one of the intensity of the suction and exhaust force through the control of the power application cycle and the rotation speed of the motor.

[0436] Information on the temperature of the object according to the drying time for each drying course may be information obtained and stored according to the moisture content of the object through testing.

[0437] For example, the processor (401) may increase the reference off time of the power application cycle when the temperature of the recognized object exceeds the reference temperature. The processor (401) may recognize the reference off time based on the difference value between the temperature of the recognized object and the reference temperature, and adjust the power application cycle based on the recognized reference off time.

[0438] The processor (401) can control the rotation speed of the motor (475) so that the strength of the suction and exhaust force increases when the temperature of the recognized object exceeds the reference temperature.

[0439] Figure 15a is a temperature graph according to drying time when drying cotton, Figure 15b is a temperature graph according to drying time when drying polyester, and Figure 15c is a temperature graph according to drying time when drying rayon.

[0440] Information on the temperature of the object according to the drying time for each material of the object may be obtained through a test and stored in the memory (402). Information on the temperature of the object according to the drying time for each material of the object may be obtained through a test and stored in the memory (402) according to the moisture content of the object.

[0441] The processor (401) can receive information on the material of the object from the input unit (451). The processor (401) can also recognize the material of the object based on changes in the moisture content of the drying room over a certain period of time from the start of the drying operation.

[0442] The processor (401) can also set the first, second, and third reference moisture content and target moisture content corresponding to the material of the target object based on the information stored in the memory (402).

[0443] For example, when the material of the target object is cotton or polyester, the processor (401) may set the first reference moisture content to approximately 40%, the second reference moisture content to approximately 10%, and the target moisture content to approximately 0.4%.

[0444] As another example, the processor (401) may set the third reference moisture content to approximately 15% when the material of the target object is wool or rayon. Here, the third reference moisture content may be the same as the target moisture content.

[0445] The memory (402) can store reference information and load control information for each drying course.

[0446] The memory (402) can store information on one or more reference moisture contents per drying course and can store information on a target moisture contents per drying course.

[0447] The memory (402) can store information about the first, second, third, fourth, and fifth reference periods and the first, second, and third reference centuries.

[0448] The memory (402) can store information about the first, second, and third target rotation speeds of the second motor corresponding to the first, second, and third reference centuries.

[0449] The memory (402) can also store information on the moisture content corresponding to the pulse value of the electrode sensor.

[0450] The memory (402) can store information about the temperature of the object according to the drying time for each drying course.

[0451] Information about the temperature of the object according to the drying time for each drying course may be information stored according to the moisture content of the object.

[0452] The memory (402) can store information on one or more reference moisture content and target moisture content for each material of the target object.

[0453] The dryer (4) may further include a communication unit (410). The communication unit (410) of another embodiment is the same as the communication unit (210) of one embodiment, and thus, a description thereof is omitted.

[0454] At least one component may be added or deleted to correspond to the performance of the components of the dryer (4) illustrated in Fig. 13. Furthermore, it will be readily apparent to those skilled in the art that the relative positions of the components may be altered to correspond to the performance or structure of the dryer.

[0455] Meanwhile, each component illustrated in FIG. 13 refers to software and / or hardware components such as a Field Programmable Gate Array (FPGA) and an Application Specific Integrated Circuit (ASIC).

[0456] Fig. 16 is a control flowchart of a dryer according to another embodiment.

[0457] The dryer (4) recognizes (552) reference information and load control information corresponding to the received drying course based on the drying course being received from the input unit (451).

[0458] The reference information may include information on one or more reference moisture contents per drying course.

[0459] The load may include at least one of the first and second electrodes (481, 482) and the motor (475).

[0460] The load control information may include information about the first, second, third, fourth, and fifth reference cycles for applying power to the first and second electrodes (481, 482) and the first, second, and third reference intensities related to the rotational speed of the motor (475).

[0461] The rotation speed of the motor (475) may include the rotation speed of the fan.

[0462] The dryer (4) can recognize a target moisture content corresponding to a recognized drying course.

[0463] When the drying operation starts, the dryer (4) can recognize the moisture content of the object based on information detected by the sensor (490) (553).

[0464] An example of a configuration that recognizes the moisture content of an object is described.

[0465] When a weight sensor is provided as a sensor (490), the dryer can recognize the weight of an object accommodated in the drying room (420) based on information received from the weight sensor and recognize the moisture content of the object based on the amount of change in the recognized weight of the object.

[0466] The weight of the object can be detected by a weight sensor either periodically or in real time.

[0467] When an electrode sensor is provided as a sensor (490), the dryer can recognize a pulse value based on information received from the electrode sensor, and can also recognize the moisture content of the object based on the recognized pulse value.

[0468] The dryer can control at least one of the power application cycle and the intensity of the suction and exhaust power for the power applied to the first and second electrodes (481, 482) based on the recognized reference information, load control information, and recognized moisture content (554).

[0469] The load may include at least one of the first and second electrodes (481, 482) and the motor (475).

[0470] The power application cycle for the power applied to the first and second electrodes (481, 482) may be a heating cycle for applying heat to the target object.

[0471] The dryer can terminate the drying operation (556) based on the perceived moisture content reaching the perceived target moisture content (555).

[0472] Below, a configuration for controlling at least one of the power application cycle and the intensity of the intake and exhaust force for each drying course and terminating the drying operation is described.

[0473] The dryer can recognize reference information and load control information corresponding to the standard course based on the recognition that the received drying course is a standard course, and can recognize a target moisture content corresponding to the standard course. The target moisture content corresponding to the standard course may be approximately 0.4%.

[0474] Reference information corresponding to the standard course may include information on the first reference moisture content and the second reference moisture content.

[0475] Load control information corresponding to the standard course may include information on a first reference cycle, a second reference cycle, and a third reference cycle for controlling on / off of power applied to the first and second electrodes, and may include information on the second and third reference intensities. Information on the second and third reference intensities may include information on the rotation speed of the motor (475).

[0476] When the moisture content recognized during the drying operation in the standard course exceeds the first reference moisture content, the dryer can control the on / off of the power applied to the first and second electrodes (481, 482) based on the first reference cycle and control the rotation of the motor (475) based on the second reference strength.

[0477] For example, the dryer can quickly evaporate moisture in the object by applying power to the first and second electrodes for 2 minutes from 60% to 40% of the moisture content of the object, repeating the process of cutting off the power applied to the first and second electrodes for 2 minutes, and controlling the rotation of the motor (475) based on the second target rotation speed to generate a suction / exhaust force of a second reference strength.

[0478] When the moisture content recognized during the drying operation in the standard course is lower than or equal to the first reference moisture content and higher than the second reference moisture content, the dryer controls the on / off of the power applied to the first and second electrodes (481, 482) based on the second reference cycle, and can control the rotation of the motor (475) based on the second reference strength.

[0479] For example, the dryer may repeat the process of applying power to the first and second electrodes (481, 482) for 1 minute from 40% to 10% of the moisture content of the object, and then cutting off the power applied to the first and second electrodes (481, 482) for 2 minutes. At this time, the dryer may control the rotation of the motor (475) based on the second target rotation speed to generate an intake and exhaust force of the second reference strength, thereby allowing the moisture of the object to evaporate quickly.

[0480] When the moisture content recognized during the drying operation in the standard course is lower than or equal to the second reference moisture content and exceeds the target moisture content, the dryer controls the on / off of the power applied to the first and second electrodes (481, 482) based on the third reference cycle, and can control the rotation of the motor (475) based on the third reference strength.

[0481] The third reference century may be weaker than the second reference century.

[0482] When the dryer controls the rotation of the motor (475) based on the second reference century, it can recognize a second target rotation speed corresponding to the second reference century and control the rotation of the motor (475) based on the recognized second target rotation speed.

[0483] When the dryer controls the rotation of the motor (475) based on the third reference century, it can recognize a third target rotation speed corresponding to the third reference century and control the rotation of the motor (475) based on the recognized third target rotation speed.

[0484] For example, a dryer can compensate for the slowdown in moisture evaporation rate by continuously applying power to the first and second electrodes from a moisture content of 10% to a target moisture content. The dryer can also reduce shrinkage and prevent fabric damage by lowering the suction and exhaust power to a third reference level, thereby alleviating wrinkles in the object.

[0485] The dryer can cut off the power applied to the first and second electrodes (481, 482) and stop the motor (475) when the moisture content recognized during drying operation in a standard course reaches the target moisture content.

[0486] The dryer can recognize reference information and load control information corresponding to the rapid course based on the recognition that the received drying course is a rapid course, and can recognize a target moisture content corresponding to the rapid course. The target moisture content corresponding to the rapid course may be approximately 0.4%.

[0487] The reference information corresponding to the fast course may include information on the second reference moisture content.

[0488] Load control information corresponding to the fast course may include information on the third and fourth reference cycles for controlling on and off of power applied to the first and second electrodes, and information on the first reference intensity.

[0489] The first reference intensity may be greater than the second and third reference intensities. Information about the first reference intensity may include information about the rotational speed of the motor.

[0490] The dryer can control the on / off of the power applied to the first and second electrodes based on a third reference cycle when the moisture content recognized during drying operation in a rapid course exceeds the second reference moisture content, and can control the rotation of the motor (475) based on the first reference strength.

[0491] The express course is a course designed to shorten the drying time of the standard course.

[0492] The dryer can control the on / off of the power applied to the first and second electrodes based on the fourth reference cycle when the moisture content recognized during the drying operation in the rapid course is lower than the third reference moisture content and exceeds the target moisture content, and can control the rotation of the motor (475) based on the first reference strength.

[0493] When controlling the rotation of the motor, the dryer can recognize a first target rotation speed corresponding to a first reference century and control the rotation of the motor based on the recognized first target rotation speed.

[0494] The dryer can cut off the power applied to the first and second electrodes (481, 482) and stop the motor (475) when the moisture content recognized during drying operation in a rapid course reaches the target moisture content.

[0495] The dryer can recognize reference information and load control information corresponding to the wool course based on recognizing that the received drying course is a wool course, and can recognize a target moisture content corresponding to the wool course.

[0496] The reference information corresponding to our course may include information on the third reference moisture content.

[0497] The load control information corresponding to our course may include information on the fifth reference cycle for controlling on / off of the power applied to the first and second electrodes (481, 482) and information on the second reference intensity.

[0498] The target moisture content corresponding to our course may be the same as the third reference moisture content.

[0499] The dryer can control the on / off of the power applied to the first and second electrodes (481, 482) based on the fifth reference cycle when the moisture content recognized during the drying operation in the wool course exceeds the third reference moisture content, and can control the rotation of the motor (475) based on the second reference strength.

[0500] When controlling the rotation of the motor, the dryer can recognize a second target rotation speed corresponding to the second reference century and control the rotation of the motor based on the recognized second target rotation speed.

[0501] The dryer can cut off the power applied to the first and second electrodes (481, 482) and stop the motor (475) if the moisture content recognized during the drying operation in the wool course is lower than the third reference moisture content. The target moisture content corresponding to the wool course can be the same as the third reference moisture content.

[0502] The third reference moisture content may be lower than the first reference moisture content and higher than the second reference moisture content. For example, the first reference moisture content may be approximately 40%, and the second reference moisture content may be approximately 10%. The target moisture content corresponding to the wool course may be approximately 15%.

[0503] Meanwhile, the disclosed embodiments may be implemented in the form of a recording medium storing computer-executable instructions. The instructions may be stored in the form of program code, and when executed by a processor, may generate program modules to perform the operations of the disclosed embodiments. The recording medium may be implemented as a computer-readable recording medium.

[0504] Computer-readable storage media include all types of storage media that store instructions that can be deciphered by a computer. Examples include read-only memory (ROM), random access memory (RAM), magnetic tape, magnetic disks, flash memory, and optical data storage devices.

[0505] The disclosed embodiments have been described with reference to the attached drawings as described above. Those skilled in the art will understand that the present invention can be implemented in forms other than the disclosed embodiments without altering the technical spirit or essential features of the present invention. The disclosed embodiments are illustrative and should not be construed as limiting.

Claims

1. Main body; A drying room provided inside the main body and accommodating an object; A plurality of electrodes provided in the above body and spaced apart from each other, and forming an electric field in the drying room; An electrode driving unit that applies power to the plurality of electrodes; A sensor that detects information for recognizing the moisture content of the object; and A dryer including a processor that recognizes the moisture content of the object based on information detected by the sensor and controls the electrode driving unit so that the power application cycle of the plurality of electrodes is adjusted based on the recognized moisture content.

2. In paragraph 1, The power application cycle of the plurality of electrodes includes first, second, and third reference cycles in which the on-time of applying power to the plurality of electrodes is different from each other, The processor changes the first reference period to a second reference period based on the recognized moisture content and the first reference moisture content, changes the second reference period to a third reference period based on the recognized moisture content and the second reference moisture content, and controls the electrode driving unit so that power applied to the plurality of electrodes is cut off based on the recognized moisture content reaching the target moisture content. A dryer in which the first reference moisture content is higher than the second reference moisture content.

3. In paragraph 1, It further includes a fan provided inside the main body and circulating the air in the drying room; A dryer in which the processor controls the rotation speed of the fan so that the strength of the suction and exhaust forces of the drying room is adjusted based on the recognized moisture content, and controls the rotation of the fan to stop based on the recognized moisture content reaching the target moisture content.

4. In the first paragraph, the sensor, A dryer comprising at least one of a weight sensor for detecting the weight of the object, a humidity sensor for detecting the humidity of the drying room, and a temperature sensor for detecting the temperature of the drying room.

5. In paragraph 1, A drum provided inside the main body and having the drying room and being rotatable; and Further comprising a fan for circulating air in the drum, A dryer in which the processor controls at least one of the rotation speed of the drum and the rotation speed of the fan based on the recognized moisture content, and controls the rotation of the drum and the fan to stop based on the recognized moisture content reaching a target moisture content.

6. In paragraph 5, Memory for storing standard information and load control information for each drying course; and Further comprising an input unit for receiving user input, A dryer in which the processor recognizes reference information and load control information corresponding to a drying course received in the input unit based on information stored in the memory, and controls at least one of a power application cycle of the plurality of electrodes, a rotation speed of the drum, and a rotation speed of the fan based on the recognized moisture content, the recognized reference information, and the recognized load control information.

7. In paragraph 6, The above reference information includes one or more reference moisture content, A dryer in which the load control information includes a plurality of reference cycles corresponding to the power application cycle, a plurality of reference rotation speeds corresponding to the rotation speed of the drum, and a plurality of suction and exhaust force intensities corresponding to the rotation speed of the fan.

8. In paragraph 5, the processor, A dryer that recognizes a target moisture content corresponding to the received drying course, and controls the power application cycle of the plurality of electrodes and the rotation of the drum and the fan to stop based on the recognized moisture content reaching the target moisture content.

9. In paragraph 4, The above sensor includes a current sensor that detects current flowing to a motor connected to the drum, A dryer in which the processor recognizes the weight of the object based on the current detected by the current sensor and recognizes the moisture content of the object based on the recognized weight of the object.

10. A method for controlling a dryer that performs drying using an electric field of a plurality of electrodes spaced apart from each other on the main body, Recognize the moisture content of the object stored in the drying room based on the information detected by the sensor, Controlling the power application cycle for the power applied to the plurality of electrodes based on the recognized moisture content, A control method of a dryer for cutting off power applied to the plurality of electrodes based on the recognized moisture content reaching a target moisture content.

11. In paragraph 10, The power application cycle of the plurality of electrodes includes first, second, and third reference cycles in which the on-time of applying power to the plurality of electrodes is different from each other, Controlling the power application cycle for the power applied to the plurality of electrodes includes changing the first reference cycle to the second reference cycle based on the recognized moisture content and the first reference moisture content, and changing the second reference cycle to the third reference cycle based on the recognized moisture content and the second reference moisture content. A method for controlling a dryer in which the first reference moisture content is higher than the second reference moisture content.

12. In paragraph 10, recognizing the moisture content of the object is: Detecting the weight of the object through the above sensor, A control method for a dryer, comprising recognizing the moisture content of an object based on the weight of the object detected.

13. In paragraph 10, A control method for a dryer further comprising controlling at least one of a rotation speed of a drum provided inside the main body and a rotation speed of a fan provided inside the main body based on the recognized moisture content.

14. In paragraph 13, Receive the drying course through the input section, Recognize reference information and load control information corresponding to the received drying course based on the information stored in the memory, A control method for a dryer further comprising controlling at least one of a power application cycle of the plurality of electrodes, a rotation speed of the drum, and a rotation speed of the fan based on the recognized moisture content, the recognized reference information, and the recognized load control information.

15. In paragraph 14, The above reference information includes one or more reference moisture content, A control method for a dryer, wherein the load control information includes a plurality of reference cycles corresponding to the power application cycle, a plurality of reference rotation speeds corresponding to the rotation speed of the drum, and a plurality of suction and exhaust force intensities corresponding to the rotation speed of the fan.

Images