Laundry treating apparatus

Abstract

A laundry treating apparatus measures a temperature during a laundry treating process and controls based on the measured temperature. The laundry treating apparatus of one aspect includes a heat source portion generating heat energy, a drum rotatably disposed to accommodate laundry, a temperature of the drum varying due to the heat energy generated by the heat source portion, a sensor module including a power generation portion attached to an outer circumferential surface of the drum, receiving the heat energy of the drum through a first end portion, provided with a second end portion in contact with air or water outside the drum, and generating electric energy through a temperature difference between the first end portion and the second end portion, a drum sensing portion electrically coupled with the power generation portion and receiving the electric energy generated by the power generation portion to detect a temperature of the drum, and a communication portion electrically coupled with the power generation portion and the drum sensing portion and transmitting temperature data of the drum detected by the drum sensing portion, and a control portion receiving the temperature data transmitted from the communication portion and controlling the heat source portion.

Description

Technical Field

[0001] This invention relates to a laundry treatment apparatus, and more specifically, to a laundry treatment apparatus that measures temperature during the laundry treatment process and controls the process based on the measured temperature. Background Technology

[0002] Generally, laundry treatment equipment is a device that treats laundry by applying physical or chemical actions. This type of equipment encompasses washing devices for removing contaminants from laundry, dehydration devices for removing laundry by rotating a washing tank at high speed, and drying devices for drying wet laundry by supplying hot air into the washing tank.

[0003] In this regard, laundry processing devices that have emerged in recent years are not limited to each device individually performing the washing, dehydration, and drying functions, but are configured to perform all of the above functions together in one laundry processing device.

[0004] Therefore, when handling laundry, a series of operations such as washing, rinsing, spin-drying, and drying can be performed in sequence through user operation or automatic control.

[0005] On the other hand, laundry treatment devices can treat laundry by applying heat to a drum containing the laundry. However, in this case, it is necessary to measure the temperature during the treatment process in order to ensure the quality of the laundry being treated.

[0006] In this situation, due to the characteristics of the drum that holds the laundry and rotates, it is difficult to power such a sensor even if it is installed on the drum for measuring temperature, so it may be difficult to measure the temperature more directly and accurately.

[0007] Regarding the aforementioned laundry handling device, Korean Patent Publication No. 10-2022-0048531 (hereinafter referred to as "Prior Reference Document 1") discloses a sensor device and an electronic device such as a washing machine or dryer that obtains information from the sensor device.

[0008] Specifically, the sensor device generates electrical energy by converting the energy generated during the operation of the electronic device into electrical energy, and is driven by the electrical energy to measure various data related to the laundry.

[0009] In the laundry treatment apparatus of the prior art 1, a structure is proposed that can ensure electrical energy through an energy harvester to drive the sensor without the need for a separate external power supply.

[0010] However, in this structure, since the sensor device is located between the laundry, no temperature difference is generated between the medium heated together in the drum and the sensor device to ensure the electromotive force. Therefore, there is a problem that the energy harvester, including the thermoelectric element, cannot effectively generate electrical energy.

[0011] Furthermore, Chinese Patent Publication No. 10-2018-0027043 (hereinafter referred to as "Prior Document 2") discloses a washing machine and its control method.

[0012] Specifically, the disclosure includes a structure for a temperature measuring element configured to measure the water temperature in the inner cylinder, a power supply element that supplies power to the temperature measuring element and a communication element via wireless charging, and a structure for transmitting data measured by the temperature measuring element to a control device via wireless communication.

[0013] In the laundry handling apparatus of the prior art 2, since the temperature measuring element arranged in the inner drum is powered by wireless charging, there is no need to install a separate cable between the inner drum and the outer drum, thus proposing a structure that can avoid interfering with the rotation of the inner drum.

[0014] However, in this structure, since the alignment of the receiver and transmitter in wireless charging is quite important, there is a problem that the power supply components cannot effectively supply power when alignment misalignment occurs due to roller drive or other reasons.

[0015] As mentioned above, for laundry processing devices that process laundry by applying heat to a drum containing the laundry, there is a problem to be solved: it is necessary to efficiently measure the temperature during the processing without interfering with the rotation of the drum drive. However, existing laundry processing devices have limitations in adequately addressing this technical problem. Summary of the Invention

[0016] The problem that the invention aims to solve

[0017] The purpose of this invention is to solve the aforementioned problems of laundry treatment devices that process laundry by applying heat energy to a drum containing laundry.

[0018] Specifically, the purpose of this invention is to provide a laundry treatment device that can directly and accurately measure the temperature during the laundry treatment process.

[0019] In addition, the present invention aims to provide a laundry treatment device that can measure the temperature during the laundry treatment process without the need for a separate external power supply.

[0020] In addition, the present invention aims to provide a laundry treatment apparatus capable of measuring the temperature during the laundry treatment process and smoothly controlling the process based on the measured temperature.

[0021] The technical problems to be solved by the present invention are not limited to those mentioned above. Those skilled in the art to which the present invention pertains can clearly understand other technical problems not mentioned through the following description.

[0022] Technical solutions to the problem

[0023] To achieve the above or other objectives, one aspect of the laundry treatment apparatus of the present invention is configured to directly identify the temperature during the laundry treatment process. Specifically, it is configured such that when the temperature of the drum changes due to heat energy generated by the heat source, the temperature of the drum is detected by a drum sensing unit to identify the temperature during the laundry treatment process.

[0024] Furthermore, one aspect of the laundry treatment apparatus of the present invention is configured to generate electrical energy independently without the need for a separate external power supply, and to use the electrical energy as a power source for temperature measurement. Specifically, it is configured such that a power generation unit attached to the outer circumferential surface of the drum generates electrical energy based on the temperature difference between a first end and a second end, and supplies the electrical energy to a drum sensing unit for detecting the drum temperature.

[0025] Furthermore, one aspect of the laundry treatment apparatus of the present invention is configured to transmit the detected drum temperature data to a separately provided control unit. Specifically, the drum temperature data is transmitted to a control unit separately provided with the sensor module via the communication unit of the sensor module, thereby performing corresponding control.

[0026] In addition, in one aspect of the laundry handling apparatus of the present invention, the drum sensing unit may include a drum temperature sensor for measuring the drum temperature.

[0027] In addition, in one aspect of the laundry handling apparatus of the present invention, the drum sensing unit may include a voltage sensor for measuring the voltage of the power generation unit.

[0028] In addition, the laundry treatment apparatus of one aspect of the present invention can calculate the temperature of the drum by the control unit performing calculations on the voltage data measured by the voltage sensor and the temperature data detected by the reference sensor unit.

[0029] In addition, the laundry treatment device of one aspect of the present invention can calculate the temperature of the drum by performing calculations on the voltage data measured by the voltage sensor and the temperature data detected by the reference sensor unit using the sensor module.

[0030] In addition, in one aspect of the laundry treatment apparatus of the present invention, the electrical energy sensed by the induction heating unit can be converted into heat energy according to the internal resistance, thereby heating the drum.

[0031] In addition, in one aspect of the laundry treatment apparatus of the present invention, the induction heating unit and the sensor module can be arranged in areas that do not overlap with each other.

[0032] In another aspect of the laundry treatment apparatus of the present invention, the sensor module can be attached to the outer peripheral surface of the drum in a state of being housed in the cover portion.

[0033] In addition, in one aspect of the laundry treatment apparatus of the present invention, the cover part may include a cover base and a cover cover.

[0034] In addition, in one aspect of the laundry treatment apparatus of the present invention, the heat energy of the drum can be transferred through a base heat transfer body formed at the first end of the power generation section.

[0035] In addition, in one aspect of the laundry treatment apparatus of the present invention, the heat energy of the drum can be transferred through the cover base that contacts the first end of the power generation unit.

[0036] In addition, in one aspect of the laundry treatment apparatus of the present invention, the heat energy of the air or water outside the drum can be transferred through a cover heat transfer body formed at the second end of the power generation section.

[0037] In addition, in one aspect of the laundry treatment apparatus of the present invention, a heat dissipation fin can be formed in the part that comes into contact with the air or water outside the drum, and the heat dissipation fin is aligned with the rotation direction of the drum.

[0038] In addition, in one aspect of the laundry treatment apparatus of the present invention, a sealing body may be sandwiched in the portion of the base heat transfer body or the cover heat transfer body that penetrates the cover body.

[0039] In addition, in one aspect of the laundry treatment apparatus of the present invention, the base heat transfer body or the cover heat transfer body can be formed with the cover body by double injection molding.

[0040] In addition, in one aspect of the laundry treatment apparatus of the present invention, the heat energy of the air or water outside the drum can be transferred through a cover that contacts the second end of the power generation unit.

[0041] In addition, in one aspect of the laundry treatment apparatus of the present invention, the drum and the cover are made of the same material, and heat transfer between the cover base and the cover cover can only be achieved through the power generation unit.

[0042] In addition, in one aspect of the laundry treatment apparatus of the present invention, as air heated by a heat source provided in the pipe section flows into the drum, the drum can be heated by the heat energy transferred therefrom.

[0043] The means by which this invention addresses the technical problem are not limited to those mentioned above. Those skilled in the art to which this invention pertains can clearly understand other unmentioned means through the following description. Attached Figure Description

[0044] Figure 1This is a perspective view showing a laundry treatment apparatus according to an embodiment of the present invention.

[0045] Figure 2 It is shown Figure 1 The diagram shows the state of the removal chamber in the laundry treatment device.

[0046] Figure 3 and Figure 4 It is shown Figure 2 The diagram shows the status of the sensor module installed in the laundry treatment device.

[0047] Figure 5 This is a diagram showing a cover portion of a laundry treatment apparatus according to an embodiment of the present invention, in which a sensor module is housed.

[0048] Figure 6 It is shown Figure 5 The diagram shows the state of the main structure being decomposed.

[0049] Figure 7 It is shown Figure 5 The diagram shows the main structure with the cover removed.

[0050] Figure 8 It is shown Figure 5 A cross-sectional view of the main structure shown.

[0051] Figure 9 It is shown Figure 5 A diagram of the base of the main structure shown.

[0052] Figure 10 and Figure 11 It is shown Figure 5 A diagram of the cover in the main structure shown.

[0053] Figures 12 to 15 This is an exemplary diagram showing the structure of a laundry treatment apparatus according to an embodiment of the present invention for transferring heat energy to a power generation unit.

[0054] Figure 16 This is a diagram showing the state of the removal chamber in a laundry treatment apparatus according to another embodiment of the present invention. Detailed Implementation

[0055] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in order to clarify the main points of the present invention, descriptions of known functions or structures will be omitted.

[0056] In the embodiments of the present invention, the X, Y, and Z directions can be mutually orthogonal. The X and Y directions can each be parallel to the horizontal direction, and the Z direction can be parallel to the vertical direction. When the X direction is parallel to the left-right direction, the Y direction can be parallel to the front-back direction. When the X direction is parallel to the front-back direction, the Y direction can be parallel to the left-right direction.

[0057] Figure 1 This is a perspective view showing a laundry treatment apparatus 1000 according to an embodiment of the present invention. Figure 2 It is shown Figure 1 A diagram showing the state of the removal chamber 10 in the laundry treatment device 1000. Figure 3 and Figure 4 It is shown Figure 2 The diagram shows the state of the sensor module 300 installed in the laundry treatment device 1000.

[0058] This laundry handling device 1000 can also be used under other names. For example, the laundry handling device 1000 of one embodiment of the present invention can be used as a washing machine, dryer, washer-dryer combo, or garment management machine.

[0059] like Figures 1 to 4 As shown, a laundry handling apparatus 1000 according to an embodiment of the present invention may consist of a housing 10 forming the exterior and a drum 200 rotatably disposed inside the housing 10 to accommodate laundry.

[0060] The front of the housing 10 may have an inlet for feeding laundry into the drum 200. In this case, the inlet can be opened and closed through a door (not shown) provided on the front of the housing 10.

[0061] on the other hand, Figures 1 to 4 The diagram shows the structure in which the drum 200 is installed inside the outer tub 20, but it is not necessarily limited to this. Depending on the function and type of the laundry handling device 1000, the drum 200 may also be installed inside the housing 10 without the outer tub 20.

[0062] A laundry treatment device 1000 according to an embodiment of the present invention includes a heat source 100, a drum 200, a sensor module 300, and a control unit 400.

[0063] The heat source section 100 is the part that generates heat energy, and may include a heater structure, an electrode structure, an induction heating structure, etc. to generate heat energy.

[0064] The drum 200 is a rotatable part that holds laundry and whose temperature varies with the heat generated by the heat source 100. That is, the heat generated by the heat source 100 can be transferred to the drum 200 and heat the drum 200.

[0065] The control unit 400 can be associated with each structure constituting the laundry treatment device 1000 to control the operation of each structure.

[0066] To control the control unit 400, the laundry treatment device 1000 may be equipped with a storage medium storing an application program. Furthermore, the control unit 400 can run the application program based on information input to and output from the laundry treatment device 1000 to control the laundry treatment device 1000.

[0067] In this case, the control unit 400 can control the heat source unit 100 according to the temperature of the laundry. Although the laundry can be treated by applying heat energy from the heat source unit 100 to the drum 200 containing the laundry, in this case, it is necessary to measure the temperature during the treatment process in order to ensure the quality of the treated laundry.

[0068] Therefore, the control unit 400 can adjust whether the heat source unit 100 generates heat, the intensity of heat generation, and the generation mode based on the measured temperature of the laundry, thereby controlling and ensuring the quality of the laundry.

[0069] Figure 5 This is a diagram showing a cover portion 600 of a laundry treatment apparatus 1000 according to an embodiment of the present invention, in which a sensor module 300 is housed. Figure 6 It is shown Figure 5 The diagram shows the state of the main structure being decomposed. Figure 7 It is shown Figure 5 The diagram shows the main structure with the cover 620 removed. Figure 8 It is shown Figure 5 A cross-sectional view of the main structure shown. Figure 9 It is shown Figure 5 A diagram of the cover base 610 in the main structure shown. Figure 10 and Figure 11 It is shown Figure 5 A diagram of the cover 620 in the main structure shown.

[0070] One side of the sensor module 300 is attached to the outer peripheral surface of the roller 200 to receive the heat energy of the roller 200, and the other side is in contact with the air or water outside the roller 200. The electrical energy generated by the temperature difference of the contact part is used as a power source to detect the temperature of the roller 200.

[0071] In this case, the sensor module 300 includes a power generation unit 310, a roller sensing unit 320, and a communication unit 330.

[0072] The power generation part 310 is attached to the outer peripheral surface of the roller 200 to receive the heat energy of the roller 200 through the first end 310-1, and is provided with a second end 310-2 that is in contact with the air or water outside the roller 200. The power generation part 310 generates electrical energy through the temperature difference between the first end 310-1 and the second end 310-2.

[0073] That is, the power generation unit 310 can generate electrical energy by utilizing the Seebeck effect in the thermoelectric effect, which obtains an electromotive force through the temperature difference between the two ends.

[0074] Specifically, the first end 310-1 of the power generation unit 310 can receive heat energy from the roller 200 and be in a relatively high temperature state. Furthermore, the second end 310-2 of the power generation unit 310 can receive heat energy from the air or water outside the roller 200 and be in a relatively low temperature state.

[0075] Thus, the power generation unit 310 can generate electrical energy through the temperature difference between the first end 310-1, which is at a relatively high temperature, and the second end 310-2, which is at a relatively low temperature.

[0076] The roller sensing unit 320 is electrically coupled to the power generation unit 310 to receive electrical energy generated by the power generation unit 310 and to detect the temperature of the roller 200.

[0077] That is, the roller sensing unit 320 can operate without receiving a separate external power supply, but can operate using the power generated by the power generating unit 310. In this way, since the roller sensing unit 320 does not need to be connected via a separate wired line, it will not interfere with the driving of the roller 200 even if it is installed on the rotating roller 200.

[0078] Therefore, the drum sensing unit 320 is installed on the drum 200 and directly detects the temperature of the drum 200, thereby identifying the temperature of the laundry contained inside the drum 200 during the processing.

[0079] Thus, in the laundry treatment apparatus 1000 of one embodiment of the present invention, when the temperature of the drum 200 changes due to the heat energy generated by the heat source 100, the drum sensing unit 320 detects the temperature of the drum 200 and identifies the temperature during the laundry treatment process. Therefore, temperature measurement for ensuring the quality of laundry can be performed more directly and accurately.

[0080] In addition, in a laundry treatment apparatus 1000 of an embodiment of the present invention, the power generation unit 310 attached to the outer peripheral surface of the drum 200 generates electrical energy by utilizing the temperature difference between the first end 310-1 and the second end 310-2, and supplies the electrical energy to the drum sensing unit 320 for detecting the temperature of the drum 200. Therefore, no separate external power supply is required, thereby enabling efficient measurement of the temperature during the treatment process without interfering with the driving of the rotating drum 200.

[0081] The communication unit 330 is electrically coupled to the power generation unit 310 and the roller sensing unit 320, and transmits temperature data of the roller 200 detected by the roller sensing unit 320. In this case, the control unit 400 can receive the temperature data transmitted by the communication unit 330 and control the heat source unit 100.

[0082] That is, the communication unit 330 can also operate without receiving a separate external power supply, but instead be powered by the power generated by the power generation unit 310. Furthermore, since the temperature data of the roller 200 detected by the roller sensing unit 320 is transmitted to the control unit 400 and the like through this communication unit 330, all the functions of the sensor module 300 can be smoothly realized even if the entire sensor module 300 is not connected to an external structure through a separate wired line or the like.

[0083] Thus, in the laundry treatment apparatus 1000 of one embodiment of the present invention, the temperature data of the drum 200 is transmitted to the control unit 400 separately provided with the sensor module 300 through the communication unit 330 of the sensor module 300, thereby performing corresponding control. Therefore, it is possible to smoothly control the process based on the temperature measurement results during the laundry treatment.

[0084] In a laundry treatment apparatus 1000 according to an embodiment of the present invention, the drum sensing unit 320 may include a drum temperature sensor 321, which operates by receiving electrical energy from the power generation unit 310 and measures the temperature of the drum 200.

[0085] That is, a roller temperature sensor 321 that detects heat and outputs an electrical signal can be installed in the roller sensing unit 320 to measure the temperature of the roller 200. Thus, the temperature of the roller 200 can be measured without a relatively complex calculation process.

[0086] Thus, in the laundry handling apparatus 1000 of one embodiment of the present invention, the drum sensing unit 320 includes a drum temperature sensor 321 for measuring the temperature of the drum 200, so the temperature data of the drum 200 can be easily obtained.

[0087] Here, the roller temperature sensor 321 can penetrate the cover portion 600 (described later) and contact the roller 200, and a sealing member can be clamped in this penetration portion.

[0088] On the other hand, in addition to the roller temperature sensor 321, the roller sensing unit 320 may also include a roller humidity sensor or the like to measure the humidity of the roller 200.

[0089] In a laundry treatment apparatus 1000 according to an embodiment of the present invention, the drum sensing unit 320 may include a voltage sensor 322, which operates by receiving electrical energy from the power generation unit 310 and measures the voltage of the power generation unit 310.

[0090] That is, a voltage sensor 322 for measuring the electrical charge of the object being measured can be installed in the roller sensing unit 320 to measure the voltage of the power generation unit 310. This allows for the inverse calculation of the electromotive force generated by the thermoelectric effect, thereby indirectly measuring the temperature of the roller 200.

[0091] Thus, in the laundry treatment apparatus 1000 of one embodiment of the present invention, since the drum sensing unit 320 includes a voltage sensor 322 for measuring the voltage of the power generation unit 310, the temperature of the drum 200 can be calculated using the measured voltage data.

[0092] The laundry treatment apparatus 1000 of one embodiment of the present invention may further include a reference sensor unit 500, which is used to detect the temperature of air or water outside the drum 200 that is in contact with the second end 310-2.

[0093] That is, the reference sensor unit 500 can detect the temperature of the air or water outside the roller 200 to identify the temperature of the second end 310-2 of the power generation unit 310.

[0094] In this configuration, the reference sensor unit 500 can be located within the sensor module 300, or it can be located separately from the sensor module 300 on the outside of the roller 200. Furthermore, the structure and arrangement of the reference sensor unit 500 can be modified as needed.

[0095] When the laundry treatment apparatus 1000 of an embodiment of the present invention further includes a reference sensor unit 500, the communication unit 330 transmits voltage data measured by the voltage sensor 322, the control unit 400 receives the voltage data transmitted by the communication unit 330 and converts it into temperature difference data between the first end 310-1 and the second end 310-2, and then performs calculations with the temperature data of the second end 310-2 detected by the reference sensor unit 500, thereby enabling the calculation of the temperature of the drum 200.

[0096] That is, voltage data can be acquired through the voltage sensor 322 of the sensor module 300 and transmitted to the control unit 400 through the communication unit 330. Furthermore, the control unit 400 can acquire the temperature difference between the first end 310-1 and the second end 310-2 through the transmitted voltage data, and perform calculations with the temperature of the second end 310-2 detected by the reference sensor unit 500, thereby calculating the temperature of the roller 200 in contact with the first end 310-1.

[0097] In the above case, since the sensor module 300 is only responsible for acquiring and transmitting voltage data, and the other functions are performed by the control unit 400, the sensor module 300 can be composed of only the minimum structure.

[0098] Thus, in the laundry treatment apparatus 1000 of one embodiment of the present invention, the control unit 400 calculates the temperature of the drum 200 by performing calculations on the voltage data measured by the voltage sensor 322 and the temperature data detected by the reference sensor unit 500. Therefore, the sensor module 300 does not need a structure for calculation, and the structure of the sensor module 300 can be further simplified.

[0099] When the laundry treatment apparatus 1000 of an embodiment of the present invention further includes a reference sensor unit 500, the sensor module 300 can convert the voltage data measured by the voltage sensor 322 into temperature difference data between the first end 310-1 and the second end 310-2, and then perform calculations with the temperature data of the second end 310-2 detected by the reference sensor unit 500, thereby being able to calculate the temperature of the drum 200.

[0100] That is, voltage data can be acquired through the voltage sensor 322 of the sensor module 300, but this voltage data is not transmitted; instead, the sensor module 300 performs the calculations itself. Thus, the sensor module 300 can independently identify the temperature difference between the first end 310-1 and the second end 310-2 through the voltage data, and perform calculations with the temperature of the second end 310-2 detected by the reference sensor unit 500, thereby calculating the temperature of the roller 200 in contact with the first end 310-1.

[0101] In the above case, since the temperature of the roller 200 can be calculated without going through the control unit 400, the function execution process can be faster and simpler.

[0102] Thus, in one embodiment of the present invention, the laundry treatment apparatus 1000 calculates the temperature of the drum 200 by the sensor module 300 performing calculations on the voltage data measured by the voltage sensor 322 and the temperature data detected by the reference sensor unit 500. Therefore, the temperature of the drum 200 can be calculated without going through a separate control unit 400.

[0103] The laundry treatment device 1000 of one embodiment of the present invention may further include an induction heating unit 110, which is disposed on the circumferential outer side of the drum 200 and transmits electrical energy to the drum 200 by electromagnetic induction.

[0104] In this situation, the electrical energy sensed by the induction heating unit 110 is converted into heat energy according to the internal resistance, thereby causing a change in the temperature of the roller 200.

[0105] Specifically, the induction heating unit 110 may include an induction heater. The induction heater may be a heater that uses the induced current generated by the magnetic field as a heat source. If the drum 200 (metal) is located within the magnetic field generated by the induction heating unit 110, eddy currents are generated in the drum 200 through electromagnetic induction, and the drum 200 can be heated by Joule heating.

[0106] The induction heating element 110 can be fixed to the outer drum 20 while separated from the roller 200. When the induction heating element 110 is in operation, it can heat the roller 200, which is made of metal. The outer drum 20 is made of a material through which a magnetic field can pass (e.g., synthetic resin), and the induction heating element 110 can be arranged on the outside of the outer drum 20.

[0107] According to an embodiment, the induction heating unit 110 can be arranged inside the outer barrel 20.

[0108] The induction heating unit 110 can be fixedly disposed on the outer side of the outer tub 20, and the roller 200 inside the outer tub 20 can be heated by the operation of the induction heating unit 110. If the roller 200 rotates inside the outer tub 20, the entire circumference of the roller 200 can be uniformly heated by the induction heating unit 110.

[0109] Thus, in the laundry treatment apparatus 1000 of one embodiment of the present invention, the electrical energy sensed by the induction heating unit 110 is converted into heat energy according to the internal resistance, thereby heating the drum 200, and thus the entire drum 200 can be heated more evenly.

[0110] On the other hand, the aforementioned induction heating part 110 can be one of the heat source parts 100. Therefore, the induction heating part 110 does not need to be set separately from the heat source parts 100, but can be set to replace the heat source parts 100.

[0111] In a laundry treatment apparatus 1000 according to an embodiment of the present invention, the induction heating unit 110 may be arranged in a first interval S1 along the length direction of the drum 200, and the sensor module 300 may be arranged in a second interval S2 along the length direction of the drum 200 that does not overlap with the first interval S1.

[0112] That is, refer to Figure 4 To clarify, the length direction of the roller 200 can be the Y direction. Furthermore, in this length direction of the roller 200, the induction heating unit 110 can be arranged in the first interval S1, and the sensor module 300 can be arranged in the second interval S2. Here, the first interval S1 and the second interval S2 can be non-overlapping intervals.

[0113] As described above, when the induction heating unit 110 generates electrical energy through electromagnetic induction, this electromagnetic induction phenomenon may affect the various structures of the sensor module 300.

[0114] Thus, if the sensor module 300 is affected by electromagnetic induction, the function of at least one of the power generation unit 310, the roller sensing unit 320, and the communication unit 330 may be reduced.

[0115] Therefore, in order to minimize the influence of electromagnetic induction on the sensor module 300, the induction heating part 110 should preferably be arranged away from the area where the sensor module 300 is located.

[0116] Thus, in the laundry treatment apparatus 1000 of one embodiment of the present invention, the induction heating unit 110 and the sensor module 300 are arranged in a non-overlapping area, so that the function of the sensor module 300 can be minimized by the electromagnetic induction interference of the induction heating unit 110.

[0117] The laundry treatment device 1000 of one embodiment of the present invention may further include a cover portion 600, which houses the sensor module 300 and is attached to the outer peripheral surface of the drum 200.

[0118] That is, the interior of the cover portion 600 has a receiving space in which the sensor module 300 can be accommodated. Furthermore, a portion of the cover portion 600 can be joined and attached to the outer peripheral surface of the roller 200.

[0119] In this case, the cover part 600 can be attached to the outer circumferential surface of the roller 200 by means of welding, riveting, bolting or other methods.

[0120] Thus, in the laundry treatment apparatus 1000 of one embodiment of the present invention, since the sensor module 300 is attached to the outer peripheral surface of the drum 200 while being housed in the cover portion 600, the sensor module 300 can be set more stably.

[0121] In a laundry treatment apparatus 1000 according to an embodiment of the present invention, the cover portion 600 may include a cover base 610 and a cover cover 620.

[0122] The housing base 610 is a part used to house the sensor module 300 and can form the lower part of the appearance of the housing part 600.

[0123] The cover 620 is the part attached to the cover base 610 to cover the sensor module 300, and can form the upper part of the appearance of the cover part 600.

[0124] Thus, with the sensor module 300 placed on the housing base 610, the housing part 600 containing the sensor module 300 is assembled by covering the housing cover 620.

[0125] Thus, in the laundry treatment apparatus 1000 of one embodiment of the present invention, the cover part 600 includes a cover base 610 and a cover cover 620, so the cover part 600 and the sensor module 300 can be assembled more easily.

[0126] Figures 12 to 15 This is an exemplary diagram showing the structure of a laundry treatment apparatus 1000 according to an embodiment of the present invention, which transfers heat energy to a power generation unit 310.

[0127] The following is for reference Figures 12 to 15 This describes the assembly structure of the cover 600 and the sensor module 300.

[0128] In a laundry treatment apparatus 1000 according to an embodiment of the present invention, the power generation unit 310 may include a base heat transfer body 311, which is formed at a first end 310-1 to transfer the heat energy of the drum 200.

[0129] In this case, the base 610 of the cover has a base through hole 611 formed in the part where the power generation part 310 is placed, and the base heat transfer body 311 can protrude to the outside of the cover part 600 through the base through hole 611 and contact the outer peripheral surface of the roller 200.

[0130] That is, such as Figure 12 and Figure 15 As shown, a base heat transfer body 311 that penetrates the cover base 610 is formed at the first end 310-1 of the power generation section 310, and the first end 310-1 can receive the heat energy of the roller 200 through this base heat transfer body 311.

[0131] Preferably, the base heat transfer element 311 is made of a material with the same or similar thermal conductivity as the roller 200, so as to transfer the heat energy of the roller 200 to the first end 310-1.

[0132] Thus, in the laundry treatment apparatus 1000 of one embodiment of the present invention, the heat energy of the drum 200 is transferred through the base heat transfer body 311 formed on the first end 310-1 of the power generation unit 310, so the heat energy of the drum 200 can be transferred to the power generation unit 310 more smoothly.

[0133] In a laundry treatment apparatus 1000 according to an embodiment of the present invention, the first end portion 310-1 of the power generation unit 310 can contact the inner surface of the cover base 610, and the outer surface of the cover base 610 can contact the outer peripheral surface of the drum 200.

[0134] That is, such as Figure 13 and Figure 14 As shown, the first end 310-1 of the power generation unit 310 does not directly contact the outer peripheral surface of the roller 200, but can receive the heat energy of the roller 200 through the cover base 610.

[0135] Here, a heat-conducting sheet 313, a coating material, etc., can be sandwiched between the outer peripheral surface of the roller 200 and the outer surface of the cover base 610. In addition, preferably, the cover base 610 is made of a material with the same or similar thermal conductivity as the roller 200, so as to transfer the heat energy of the roller 200 to the first end 310-1.

[0136] Thus, in the laundry treatment apparatus 1000 of one embodiment of the present invention, the heat energy of the drum 200 is transferred through the cover base 610 that contacts the first end 310-1 of the power generation unit 310. Therefore, even if a separate through hole is not formed on the cover base 610, the heat energy of the drum 200 can be transferred to the power generation unit 310.

[0137] In a laundry treatment apparatus 1000 according to an embodiment of the present invention, the power generation unit 310 may further include a cover heat transfer body 312, which is formed at the second end 310-2 to transfer the heat energy of air or water outside the drum 200.

[0138] In this case, the portion of the cover 620 used to cover the power generation part 310 is formed with a cover through hole 621, through which the cover heat transfer body 312 can protrude to the outside of the cover portion 600.

[0139] That is, such as Figure 12 and Figure 14 As shown, a heat transfer body 312 penetrating the cover 620 is formed at the second end 310-2 of the power generation section 310, and the second end 310-2 can receive the heat energy of the air or water outside the roller 200 through this heat transfer body 312.

[0140] Preferably, the heat transfer body 312 is made of a material with the same or similar thermal conductivity as the roller 200, so as to transfer the heat energy of the air or water outside the roller 200 to the second end 310-2.

[0141] Thus, in the laundry treatment apparatus 1000 of one embodiment of the present invention, the heat energy of the air or water outside the drum 200 is transferred by the cover heat transfer body 312 formed on the second end 310-2 of the power generation unit 310, so that the heat energy of the air or water outside the drum 200 can be transferred to the power generation unit 310 more smoothly.

[0142] In a laundry treatment apparatus 1000 according to an embodiment of the present invention, a heat sink 710 may be formed on the outer surface of the cover 620 or on the heat transfer body 312 portion protruding to the outside of the cover 620, and the heat sink 710 may be formed extending in the same direction as the rotation direction of the drum 200.

[0143] Since the greater the temperature difference between the first end 310-1 and the second end 310-2 in the power generation section 310, the greater the electromotive force, it is preferable to reduce the temperature of the second end 310-2 as much as possible compared to the first end 310-1 which is at a relatively high temperature.

[0144] For this purpose, a heat sink 710 can be formed on the outer surface of the cover 620 connected to the second end 310-2 or on the heat transfer body 312 portion protruding to the outside of the cover 620.

[0145] On the other hand, since the heat sink 710 is made of a fin-like structure extending along the length direction, it may be damaged by resistance when the drum 200 rotates.

[0146] Therefore, preferably, by extending the heat sink 710 in the same direction as the rotation direction of the roller 200, the resistance experienced by the heat sink 710 when the roller 200 rotates can be minimized.

[0147] Thus, in the laundry treatment apparatus 1000 of one embodiment of the present invention, a heat sink 710 is formed in the part that comes into contact with the air or water outside the drum 200 and is oriented in the same direction as the rotation of the drum 200. Therefore, the damage to the heat sink 710 used to transfer heat energy when the drum 200 rotates can be minimized.

[0148] In a laundry treatment device 1000 according to an embodiment of the present invention, a sealing body 720 may be sandwiched between the base heat transfer body 311 and the base through hole 611, or between the cover heat transfer body 312 and the cover through hole 621.

[0149] As described above, when the base heat transfer element 311 penetrates the cover base 610 and the cover heat transfer element 312 penetrates the cover cover 620, moisture and other substances may flow in through the corresponding penetration portions.

[0150] Therefore, preferably, a sealing body 720 is provided between the base heat transfer body 311 and the base through hole 611, or between the cover heat transfer body 312 and the cover through hole 621, to prevent moisture and other substances from flowing in through the corresponding through portion.

[0151] Thus, in the laundry treatment apparatus 1000 of one embodiment of the present invention, since a sealing body 720 is provided in the portion of the base heat transfer body 311 or the cover heat transfer body 312 that penetrates the cover portion 600, moisture can be prevented from seeping into the interior of the cover portion 600.

[0152] In a laundry treatment device 1000 according to an embodiment of the present invention, the base heat transfer element 311 and the cover base 610, or the cover heat transfer element 312 and the cover cover 620, can be formed by double injection molding.

[0153] Here, two-shot injection molding refers to the method of injection molding using different injection materials, that is, filling the space between the first molded part and the second cavity with a second injection material.

[0154] For this double injection molding method, since airtightness can be ensured at the joint of the finished molded product, it is preferable to use double injection molding for the base heat transfer body 311 and the cover base 610, or for the cover heat transfer body 312 and the cover cover 620, to prevent moisture and other substances from flowing in.

[0155] Thus, in the laundry treatment apparatus 1000 of one embodiment of the present invention, since the base heat transfer body 311 or the cover heat transfer body 312 and the cover portion 600 are formed by double injection molding, moisture can be prevented from seeping into the interior of the cover portion 600.

[0156] In a laundry treatment apparatus 1000 according to an embodiment of the present invention, the second end 310-2 of the power generation unit 310 can contact the inner surface of the cover 620, and the outer surface of the cover 620 can contact the air or water outside the drum 200.

[0157] That is, such as Figure 13 and Figure 15 As shown, the second end 310-2 of the power generation unit 310 does not directly contact the air or water outside the roller 200, and the second end 310-2 can receive the heat energy of the air or water outside the roller 200 through the cover.

[0158] Preferably, the cover 620 is made of a material with the same or similar thermal conductivity as the roller 200, so as to transfer the heat energy of the air or water outside the roller 200 to the second end 310-2.

[0159] Thus, in the laundry treatment apparatus 1000 of one embodiment of the present invention, the heat energy of the air or water outside the drum 200 is transmitted through the cover 620 that contacts the second end 310-2 of the power generation unit 310. Therefore, even if a separate through hole is not formed on the cover 620, the heat energy of the air or water outside the drum 200 can be transmitted to the power generation unit 310.

[0160] In a laundry treatment apparatus 1000 according to an embodiment of the present invention, the cover base 610 and the cover cover 620 are made of the same material as the outer peripheral surface of the drum 200, and a heat insulation body 730 may be sandwiched between the cover base 610 and the cover cover 620.

[0161] As described above, since the cover portion 600 is attached to the outer peripheral surface of the roller 200, preferably, the cover portion 600 and the roller 200 are made of the same material so that the coefficient of thermal expansion is consistent, thereby minimizing the error.

[0162] However, when the cover 600 is made of the same material as the roller 200, if heat transfer occurs directly between the cover base 610 and the cover 620, the heat transfer that should be transferred to the power generation unit 310 may not be smooth.

[0163] Therefore, preferably, a heat insulation body 730 is sandwiched in the remaining part of the cover 600 except for the part connected to the power generation part 310, to prevent heat from being transferred to the remaining part.

[0164] Thus, in the laundry treatment apparatus 1000 of one embodiment of the present invention, since the drum 200 and the cover 600 are made of the same material, and heat energy is transferred between the cover base 610 and the cover cover 620 only through the power generation unit 310, the efficiency of heat energy transfer to the power generation unit 310 can be further improved.

[0165] Figure 16 This is a diagram showing the state of the removal chamber 10 in a laundry treatment apparatus 2000 according to another embodiment of the present invention.

[0166] Another embodiment of the laundry treatment device 2000 of the present invention includes a drum 200, a pipe section 800, a fan 900, a heat source section 100, a sensor module 300, and a control section 400.

[0167] The drum 200 is a rotatable section designed to hold laundry.

[0168] on the other hand, Figure 16 The diagram shows the structure in which the drum 200 is installed inside the outer tub 20, but it is not necessarily limited to this. Depending on the function and type of the laundry handling device 2000, the drum 200 may also be installed inside the housing 10 without the outer tub 20.

[0169] The pipe section 800 is configured to discharge air from one side of the roller 200 and allow air to flow in from the other side.

[0170] That is, the pipe section 800 is a section provided on the roller 200 to form an air flow path, which is formed to prevent the air discharged to the outside of the roller 200 from escaping and to allow it to flow back into the roller 200.

[0171] Fan 900 is the part that generates airflow to duct section 800 and roller 200.

[0172] That is, the fan 900 is the part that transports air discharged from the roller 200 along the duct section 800, and it transports the air at a specified pressure so that the air circulation direction remains constant.

[0173] The heat source section 100 is a section installed inside the pipe section 800 that heats the air flowing into the drum 200.

[0174] That is, the heat source section 100 is the part that generates heat energy, which heats the low-temperature air transported along the pipe section 800 and converts it into a high-temperature state.

[0175] In this case, as air heated by the heat source 100 flows into the drum 200, the drum 200 can be heated using the transferred heat energy.

[0176] The sensor module 300 is a part that is attached to the outer peripheral surface of the roller 200 on one side to receive the heat energy of the roller 200, and the other side is in contact with the air or water outside the roller 200. It uses the electrical energy generated by the temperature difference of the contact part as a power source to detect the temperature of the roller 200.

[0177] The control unit 400 is the part that receives data from the sensor module 300 and controls the heat source unit 100 and the fan 900.

[0178] That is, the control unit 400 can adjust the operation of the heat source unit 100 and the fan 900, their operation output, and their operation mode based on the detected temperature of the drum 200, so as to ensure the quality of the laundry.

[0179] Thus, in the laundry handling apparatus 2000 of another embodiment of the present invention, as air heated by the heat source 100 provided in the pipe section 800 flows into the drum 200, the drum 200 is heated by the transferred heat energy, so the temperature inside the drum 200 containing the laundry can be easily changed.

[0180] On the other hand, the laundry treatment apparatus 2000 of another embodiment of the present invention, except for the features specifically described above, has the same or similar main structure as the laundry treatment apparatus 1000 of one embodiment of the present invention, therefore detailed descriptions of repeated content are omitted.

[0181] Specific embodiments of the present invention have been described and illustrated above. However, the present invention is not limited to the described embodiments, and those skilled in the art will obviously be able to make various modifications and variations without departing from the spirit and scope of the present invention. Therefore, such modifications or variations should not be construed as departing from the technical spirit or concept of the present invention, and the modified embodiments should fall within the scope of the claims of the present invention.

[0182] Industrial applicability

[0183] According to at least one embodiment of the present invention, when the temperature of the drum changes due to the heat energy generated by the heat source, the drum sensing unit detects the temperature of the drum to obtain the temperature during the washing process, thus enabling more direct and accurate measurement of the temperature used to ensure the quality of the washed clothes.

[0184] In addition, according to at least one embodiment of the present invention, the power generation unit attached to the outer peripheral surface of the roller generates electrical energy by utilizing the temperature difference between the first end and the second end, and supplies the electrical energy to the roller sensing unit for detecting the roller temperature. Therefore, no separate external power supply is required, thereby enabling efficient measurement of the temperature during the processing without interfering with the rotating roller drive.

[0185] Furthermore, according to at least one embodiment of the present invention, the temperature data of the drum is transmitted to a control unit separately provided with the sensor module through the communication unit of the sensor module, and control is performed accordingly. Therefore, control can be performed smoothly based on the temperature measurement results during the washing process.

[0186] Furthermore, according to at least one embodiment of the present invention, since the roller sensing unit includes a roller temperature sensor for measuring the temperature of the roller, the temperature data of the roller can be easily acquired.

[0187] Furthermore, according to at least one embodiment of the present invention, since the roller sensing unit includes a voltage sensor for measuring the voltage of the power generation unit, the temperature of the roller can be calculated using the measured voltage data.

[0188] Furthermore, according to at least one embodiment of the present invention, the control unit calculates the temperature of the drum by performing calculations on the voltage data measured by the voltage sensor and the temperature data detected by the reference sensor unit. Therefore, the sensor module does not require a structure for calculation, thereby further simplifying the structure of the sensor module.

[0189] Furthermore, according to at least one embodiment of the present invention, the temperature of the drum is calculated by the sensor module by performing calculations on the voltage data measured by the voltage sensor and the temperature data detected by the reference sensor unit, so that the temperature of the drum can be calculated even without a separate control unit.

[0190] Furthermore, according to at least one embodiment of the present invention, the electrical energy induced by the induction heating unit is converted into heat energy according to the internal resistance to heat the drum, thereby enabling more uniform heating of the entire drum.

[0191] Furthermore, according to at least one embodiment of the present invention, since the induction heating part and the sensor module are arranged in a non-overlapping area, the interference of the electromagnetic induction of the induction heating part on the function of the sensor module can be minimized.

[0192] Furthermore, according to at least one embodiment of the present invention, since the sensor module is attached to the outer peripheral surface of the roller while being housed in the cover portion, the sensor module can be installed more stably.

[0193] Furthermore, according to at least one embodiment of the present invention, since the cover portion includes a cover base and a cover cover, it is easier to assemble the cover portion and the sensor module.

[0194] Furthermore, according to at least one embodiment of the present invention, the heat energy of the roller is transferred through a base heat transfer body formed at the first end of the power generation section, thereby enabling the heat energy of the roller to be transferred to the power generation section more smoothly.

[0195] Furthermore, according to at least one embodiment of the present invention, the heat energy of the roller is transferred through the cover base that contacts the first end of the power generation unit, so that the heat energy of the roller can be transferred to the power generation unit even if a separate through hole is not formed on the cover base.

[0196] Furthermore, according to at least one embodiment of the present invention, the heat energy of the air or water outside the drum is transferred through the cover heat transfer body formed at the second end of the power generation section, so that the heat energy of the air or water outside the drum can be transferred to the power generation section more smoothly.

[0197] Furthermore, according to at least one embodiment of the present invention, since a heat sink is formed in the portion that comes into contact with the air or water outside the drum and is oriented in the same direction as the rotation of the drum, the damage to the heat sink used for heat transfer during drum rotation can be minimized.

[0198] In addition, according to at least one embodiment of the present invention, since a sealing body is provided in the portion of the base heat transfer body or the cover heat transfer body that penetrates the cover body portion, moisture can be prevented from seeping into the interior of the cover body portion.

[0199] In addition, according to at least one embodiment of the present invention, since the base heat transfer body or cover heat transfer body and the cover body are formed by double injection molding, moisture can be prevented from seeping into the interior of the cover body.

[0200] Furthermore, according to at least one embodiment of the present invention, the heat energy of the air or water outside the roller is transferred through the cover that contacts the second end of the power generation unit, so that even if a separate through hole is not formed on the cover, the heat energy of the air or water outside the roller can be transferred to the power generation unit.

[0201] Furthermore, according to at least one embodiment of the present invention, since the roller and the cover are made of the same material, and heat energy is transferred between the cover base and the cover cover only through the power generation part, the efficiency of heat energy transfer to the power generation part can be further improved.

[0202] Furthermore, according to at least one embodiment of the present invention, as air heated by a heat source provided in the pipe section flows into the drum, the drum is heated by the transferred heat energy, thus making it easy to achieve temperature changes inside the drum containing the laundry.

Claims

1. A laundry treatment device, wherein, include: The heat source generates heat energy; A drum, rotatably configured to hold laundry, the temperature of which varies due to heat generated by the heat source. The sensor module includes a power generation unit, a roller sensing unit, and a communication unit. The power generation unit is attached to the outer peripheral surface of the roller, receives the heat energy of the roller through a first end, and has a second end that contacts the air or water outside the roller. It generates electrical energy through the temperature difference between the first end and the second end. The roller sensing unit is electrically coupled to the power generation unit and receives the electrical energy generated by the power generation unit to detect the temperature of the roller. The communication unit is electrically coupled to the power generation unit and the roller sensing unit and transmits the temperature data of the roller detected by the roller sensing unit. as well as The control unit receives temperature data transmitted from the communication unit and controls the heat source unit.

2. The laundry treatment apparatus according to claim 1, wherein, The roller sensing unit includes a roller temperature sensor, which operates by receiving electrical energy from the power generation unit and measures the temperature of the roller.

3. The laundry treatment apparatus according to claim 1, wherein, The roller sensing unit includes a voltage sensor, which operates by receiving electrical energy from the power generation unit and measures the voltage of the power generation unit.

4. The laundry treatment apparatus according to claim 3, wherein, Also includes: The reference sensor unit detects the temperature of the air or water on the outside of the roller that is in contact with the second end. The communication unit transmits voltage data measured by the voltage sensor; The control unit receives voltage data transmitted by the communication unit and converts it into temperature difference data between the first end and the second end. Then, it performs calculations with the temperature data of the second end detected by the reference sensor unit to calculate the temperature of the roller.

5. The laundry treatment apparatus according to claim 3, wherein, Also includes: The reference sensor unit detects the temperature of the air or water on the outside of the roller that is in contact with the second end. The sensor module converts the voltage data measured by the voltage sensor into temperature difference data between the first end and the second end, and then performs calculations with the temperature data of the second end detected by the reference sensor to calculate the temperature of the roller.

6. The laundry treatment apparatus according to claim 1, wherein, Also includes: An induction heating unit is disposed on the outer circumferential side of the drum and transmits electrical energy to the drum via electromagnetic induction. The electrical energy induced by the induction heating unit is converted into heat energy according to the internal resistance, thereby causing a change in the temperature of the drum.

7. The laundry treatment apparatus according to claim 6, wherein, The induction heating element is arranged in the first section along the length direction of the drum; The sensor module is arranged in a second interval along the length of the roller that does not overlap with the first interval.

8. The laundry treatment apparatus according to claim 1, wherein, Also includes: The cover portion houses the sensor module and is attached to the outer circumferential surface of the roller.

9. The laundry treatment apparatus according to claim 8, wherein, The cover portion includes: The housing base provides a mounting for the sensor module; and A cover is attached to the base of the cover to cover the sensor module.

10. The laundry treatment apparatus according to claim 9, wherein, The power generation unit includes a base heat transfer element, which is formed at the first end to transfer the heat energy of the drum. The base of the enclosure has a base through hole in the portion where the power generation part is placed; The base heat transfer element protrudes through the base through hole to the outside of the cover part and contacts the outer peripheral surface of the roller.

11. The laundry treatment apparatus according to claim 9, wherein, The first end of the power generation unit contacts the inner surface of the housing base; The outer surface of the cover base is in contact with the outer peripheral surface of the roller.

12. The laundry treatment apparatus according to claim 10, wherein, The power generation unit also includes a cover heat transfer body, which is formed at the second end and transfers the heat energy of the air or water outside the drum. The cover has a through-hole in the portion that covers the power generation part; The heat transfer element protrudes to the outside of the cover body through the cover through-hole.

13. The laundry treatment apparatus according to claim 12, wherein, Heat dissipation fins are formed on the outer surface of the cover or on the heat transfer portion of the cover that protrudes to the outside of the cover. The heat sink extends in the same direction as the rotation direction of the roller.

14. The laundry treatment apparatus according to claim 12, wherein, A sealing body is provided between the base heat transfer body and the base through hole, or between the cover heat transfer body and the cover through hole.

15. The laundry treatment apparatus according to claim 12, wherein, The base heat transfer element and the cover base, or the cover heat transfer element and the cover cover, are formed by double injection molding.

16. The laundry treatment apparatus according to claim 10, wherein, The second end of the power generation unit contacts the inner surface of the cover. The outer surface of the cover is in contact with the air or water outside the roller.

17. The laundry treatment apparatus according to claim 16, wherein, Heat dissipation fins are formed on the outer surface of the cover or on the heat transfer portion of the cover that protrudes to the outside of the cover. The heat sink extends in the same direction as the rotation direction of the roller.

18. The laundry treatment apparatus according to claim 9, wherein, The base of the cover and the cover cover are made of the same material as the outer circumferential surface of the roller; A heat insulation material is sandwiched between the base of the cover and the cover.

19. A laundry treatment apparatus, wherein, include: A drum, which is rotatably configured to hold laundry; An induction heating unit is disposed on the outer circumferential side of the drum and transmits electrical energy to the drum via electromagnetic induction. The sensor module has one side attached to the outer circumferential surface of the roller to receive the heat energy of the roller, and the other side in contact with the air or water outside the roller. It uses the electrical energy generated by the temperature difference of the contact part as a power source to detect the temperature of the roller. as well as The control unit receives temperature data from the sensor module and controls the induction heating unit; The electrical energy induced by the induction heating unit is converted into heat energy according to the internal resistance, thereby heating the drum.

20. A laundry treatment apparatus, wherein, include: A drum, which is rotatably configured to hold laundry; The pipe section is configured to discharge air from one side of the roller and allow air to flow in from the other side; A fan generates airflow to the duct section and the roller; A heat source section is provided inside the pipe section and heats the air flowing into the drum; The sensor module has one side attached to the outer circumferential surface of the roller to receive the roller's heat energy, and the other side in contact with the air or water outside the roller. It uses the electrical energy generated by the temperature difference at the contact points as a power source to detect the temperature of the roller; and The control unit receives data from the sensor module and controls the heat source unit and the fan; As air heated by the heat source flows into the drum, the drum is heated using the transferred heat energy.

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