Cleaner and mop brush head

Abstract

A cleaner includes a mop brush head whereby cleaning using water is possible, the mop brush head includes a water tank storing water, at least one mop, a sprayer spraying water toward the surface to be cleaned, and a heating module configured to heat water supplied from the water tank, wherein the heating module includes a hot water tank storing water flowing in from the water tank, a heater that heats the water stored in the hot water tank, and a channel structure provided inside the hot water tank so that water in the hot water tank moves along a preset path.

1 . A cleaner comprising:
 a mop brush head including:
 a head body, 
 a mop attachable to the mop brush head so as to be disposed below the head body to contact a surface to be cleaned, and being detachable from the mop brush head, 
 a sprayer configured to spray water toward the surface to be cleaned, 
 a water tank in the head body and configured to store water, 
 a hot water tank having an inlet through which water stored in the water tank flows into the hot water tank, an outlet through which water in the hot water tank flows to the sprayer, and a channel structure having a plurality of channels inside the hot water tank so that water in the hot water tank moves along a preset path through the plurality of channels from the inlet to the outlet, and 
 a heater configured to heat the water in the hot water tank. 
   
     
     
         2 . The cleaner of  claim 1 , wherein the hot water tank, the channel structure, and the heater are configured so that
 water in the hot water tank is heated by the heater as the water moves along the preset path through the plurality of channels of the channel structure, and a temperature difference in the water sprayed by the sprayer is within 10% of a maximum temperature of the sprayed water.   
     
     
         3 . The cleaner of  claim 1 , wherein
 the plurality of channels are parallel with each other, and   adjacent channels of the plurality of channels are connected to each other.   
     
     
         4 . The cleaner of  claim 3 , wherein a width of each channel of the plurality of channels is smaller than a width of the hot water tank. 
     
     
         5 . The cleaner of  claim 1 , wherein
 the channel structure includes a channel wall extending in a vertical direction, and   a lower end of the channel wall is spaced apart from the heater.   
     
     
         6 . The cleaner of  claim 1 , wherein an upper surface of the channel structure has a varying height in order to induce gas movement inside the hot water tank. 
     
     
         7 . The cleaner of  claim 3 , wherein heights of upper surfaces of the plurality of channels respectively increase along at least a portion a flow path through which water moves in the hot water tank from the inlet to the outlet. 
     
     
         8 . The cleaner of  claim 1 , wherein the mop brush head further includes:
 a lower case supporting the heater,   an upper case coupled to the lower case, with the heater and the hot water tank therebetween, and   a gasket between the lower case and the upper case to provide a seal between the lower case and the upper case.   
     
     
         9 . The cleaner of  claim 1 , wherein the heater has a flat upper surface. 
     
     
         10 . The cleaner of  claim 1 , wherein the mop brush head further includes at least one of a temperature sensor configured to measure a temperature of water in the hot water tank, a water level sensor configured to measure a level of water in the hot water tank, and a power cutoff portion configured to selectively adjust power supplied to the heater according to temperature of the heater. 
     
     
         11 . The cleaner of  claim 1 , further comprising:
 a main body;   a battery in the main body;   an extension tube configured to connect the main body and the mop brush head to each other; and   a wire having at least a portion disposed in the extension tube and configured to transmit power of the battery to the mop brush head to power the heater.   
     
     
         12 . The cleaner of  claim 11 , wherein
 the extension tube has a length-adjustable structure, and   the wire has an allowable current of 5 A (ampere) or less.   
     
     
         13 . The cleaner of  claim 1 , further comprising:
 a pump configured to provide pressure to move water from the water tank to the sprayer,   wherein the cleaner is configured to operate the pump and the heater at different times.   
     
     
         14 . The cleaner of  claim 1 , wherein the mop brush head further includes:
 a filter structure inside the hot water tank and configured to block foreign substances generated during heating of water in the hot water tank from moving to the outlet.   
     
     
         15 . A mop brush head for use with a cleaner, the mop brush head comprising:
 a head body;   a mop attachable to the mop brush head so as to be disposed below the head body to contact a surface to be cleaned, and being detachable from the mop brush head;   a sprayer configured to spray water toward the surface to be cleaned;   a water tank in the head body and configured to store water;   a hot water tank having an inlet through which water stored in the water tank flows into the hot water tank, an outlet through which water in the hot water tank flows to the sprayer, and a channel structure having a plurality of channels inside the hot water tank so that water in the hot water tank moves along a preset path through the plurality of channels from the inlet to the outlet; and   a heater configured to heat the water in the hot water tank.