Laundry treating apparatus

Abstract

A laundry treating apparatus is disclosed. A laundry treating apparatus according to one embodiment of the present disclosure comprises: a cabinet; a tub provided inside the cabinet; a drum rotatably provided inside the tub and accommodating clothes; and a first temperature measurement unit and a second temperature measurement unit that are provided in the tub and measure air temperature inside the tub during a drying cycle for drying the clothes, wherein a water storage space for receiving water is formed on the bottom surface of the tub, the first temperature measurement unit is spaced apart from the water storage space and measures the temperature of dry air, the second temperature measuring unit is provided in the water storage space, and a protruding end protruding from the bottom surface of the tub toward the drum to measure temperature faces the drum, wherein the protruding end is exposed to air during the drying cycle.

1 . A laundry treating apparatus comprising:
 a cabinet;   a tub provided in the cabinet;   a drum rotatably provided in the tub, the drum being configured to receive laundry; and   a first temperature measurement unit and a second temperature measurement unit provided in the tub, each of the first temperature measurement unit and the second temperature measurement unit being configured to measure a temperature of air in the tub during a drying cycle for drying the laundry, wherein   the tub has a water storage space configured to receive water formed on a bottom surface,   the first temperature measurement unit is spaced apart from the water storage space, the first temperature measurement unit being configured to measure a temperature of dry air,   the second temperature measurement unit is provided in the water storage space, the second temperature measurement unit having a protruding end protruding from the bottom surface of the tub toward the drum, a temperature of the protruding end being measured, the protruding end being exposed to air during the drying cycle.   
     
     
         2 . The laundry treating apparatus of  claim 1 , further comprising a controller provided in the cabinet, the controller being configured to derive a humidity value in the tub from measurement values of the first temperature measurement unit and the second temperature measurement unit. 
     
     
         3 . The laundry treating apparatus of  claim 2 , further comprising:
 a drainage unit provided in communication with the water storage space, the drainage unit being configured to discharge water in the water storage space to an outside of the tub, wherein   the controller controls the drainage unit such that a water level of the water storage space is lower than the protruding end of the second temperature measurement unit during the drying cycle.   
     
     
         4 . The laundry treating apparatus of  claim 1 , further comprising:
 a cooling unit provided in the cabinet, the cooling unit being configured to cool at least a part of the tub during the drying cycle, wherein   condensate generated at the at least a part of the tub cooled by the cooling unit during the drying cycle is collected in the water storage space.   
     
     
         5 . The laundry treating apparatus of  claim 4 , wherein
 the cooling unit supplies coolant into the tub to cool the at least a part of the tub, and   the condensate and the coolant are received together in the water storage space.   
     
     
         6 . The laundry treating apparatus of  claim 5 , further comprising:
 a cooling valve provided in the cabinet, the cooling valve being configured to control a flow of coolant provided to the cooling unit;   a drainage unit provided in communication with the water storage space, the drainage unit being configured to discharge water in the water storage space to an outside of the tub; and   a controller configured to control the cooling valve or the drainage unit such that a water level of the water storage space is lower than the protruding end of the second temperature measurement unit during the drying cycle.   
     
     
         7 . The laundry treating apparatus of  claim 6 , wherein the controller derives an amount of condensate generated in the tub from an amount of coolant provided to the tub from the cooling unit and derives the water level of the water storage space from a total amount of the coolant and the condensate. 
     
     
         8 . The laundry treating apparatus of  claim 1 , wherein
 the tub comprises:   a front surface having a tub opening configured to allow an inside and an outside of the tub to communicate with each other therethrough;   a rear surface located opposite the front surface; and   a tub circumferential surface connecting the front surface and the rear surface to each other between the front surface and the rear surface, the tub circumferential surface comprising the bottom surface, and   the bottom surface of the tub corresponds to a lowermost surface of the tub circumferential surface.   
     
     
         9 . The laundry treating apparatus of  claim 8 , wherein
 a part of the tub circumferential surface of the tub is depressed downward to form the bottom surface and the water storage space,   the tub circumferential surface comprises a water storage circumferential surface defining the water storage space, and   the second temperature measurement unit is located spaced apart from the water storage circumferential surface.   
     
     
         10 . The laundry treating apparatus of  claim 1 , wherein the tub comprises a drainage hole located in the water storage space, the drainage hole being configured to discharge water. 
     
     
         11 . The laundry treating apparatus of  claim 10 , wherein the second temperature measurement unit is located adjacent to the drainage hole. 
     
     
         12 . The laundry treating apparatus of  claim 10 , wherein
 the tub comprises: a front portion comprising a front surface and a part of a tub circumferential surface; and a rear portion comprising a rear surface and a remaining part of the tub circumferential surface,   a coupling line where the front portion and the rear portion are coupled to each other is formed, and   the second temperature measurement unit is located between the drainage hole and the coupling line.   
     
     
         13 . The laundry treating apparatus of  claim 1 , wherein
 the first temperature measurement unit comprises a protruding end facing the drum, a temperature of the protruding end being measured, and   a distance between the protruding end of the second temperature measurement unit and the drum is less than a distance between the protruding end of the first temperature measurement unit and the drum.   
     
     
         14 . The laundry treating apparatus of  claim 13 , further comprising:
 a cooling unit provided in the cabinet, the cooling unit being configured to supply coolant into the tub to cool at least a part of the tub during the drying cycle, wherein   in the at least a part of the tub cooled by the coolant during the drying cycle, moisture in air is condensed to produce condensate,   the coolant and the condensate are received in the water storage space, and   a measurement value of the second temperature measurement unit is higher than a measurement value of the first temperature measurement unit before the coolant is supplied into the tub.   
     
     
         15 . The laundry treating apparatus of  claim 1 , wherein
 the tub comprises:   a front surface having a tub opening configured to allow an inside and an outside of the tub to communicate with each other therethrough;   a rear surface located opposite the front surface; and   a tub circumferential surface connecting the front surface and the rear surface to each other between the front surface and the rear surface, the tub circumferential surface comprising the bottom surface, and   the first temperature measurement unit and the second temperature measurement unit are provided at the tub circumferential surface.   
     
     
         16 . The laundry treating apparatus of  claim 15 , wherein
 the first temperature measurement unit is provided at an upper part of the tub circumferential surface, and   the second temperature measurement unit is provided at the bottom surface located at a lower part of the tub circumferential surface.   
     
     
         17 . The laundry treating apparatus of  claim 16 , further comprising:
 a heating unit that is provided at an upper end of the tub circumferential surface, wherein   the first temperature measurement unit is located spaced apart from the heating unit.   
     
     
         18 . The laundry treating apparatus of  claim 17 , wherein the first temperature measurement unit is located between a horizontal center line passing through a center of the tub and the heating unit. 
     
     
         19 . The laundry treating apparatus of  claim 1 , further comprising:
 a heating unit that provides an electromagnetic field into the tub,   wherein the drum is heated by induced current generated by the electromagnetic field, whereby air in the tub is heated.   
     
     
         20 . A laundry treating apparatus comprising:
 a cabinet;   a tub provided in the cabinet;   a drum rotatably provided in the tub, the drum being configured to receive laundry; and   a first temperature measurement unit and a second temperature measurement unit provided in the tub, each of the first temperature measurement unit and the second temperature measurement unit being configured to measure a temperature of air in the tub during a drying cycle for drying the laundry, wherein   a water storage space configured to receive water is formed on a bottom surface of the tub,   the first temperature measurement unit is spaced apart from the water storage space, the first temperature measurement unit being configured to measure the temperature of dry air,   the second temperature measurement unit is provided in the water storage space, at least a part of the second temperature measurement unit being exposed to above a water surface to measure the temperature of wet air during the drying cycle, and   a shortest distance between the second temperature measurement unit and the drum is less than a shortest distance between the first temperature measurement unit and the drum.   
     
     
         21 . A laundry treating apparatus comprising:
 a cabinet;   a tub provided in the cabinet, the tub having a water storage space configured to receive water formed on a bottom surface;   a drum rotatably provided in the tub, the drum being configured to receive laundry;   a heating unit provided in the tub, the heating unit being configured to heat air in the tub during a drying cycle for drying the laundry;   a first temperature measurement unit and a second temperature measurement unit provided in the tub, each of the first temperature measurement unit and the second temperature measurement unit being configured to measure a temperature of the air in the tub during the drying cycle;   a drainage unit provided in the cabinet, the drainage unit being in communication with the water storage space, the drainage unit being configured to discharge water in the water storage space; and   a controller configured to control the heating unit to perform the drying cycle and to control the drainage unit to adjust a water level of the water storage space, wherein   the first temperature measurement unit is spaced apart from the water storage space, the first temperature measurement unit being configured to measure the temperature of dry air,   the second temperature measurement unit is provided in the water storage space, the second temperature measurement unit being configured to measure the temperature of wet air, and   the controller controls the drainage unit during the drying cycle to adjust the water level of the water storage space such that a protruding end of the second temperature measurement unit, the temperature of which is measured, is exposed to air above a water surface.