Humidifier

Abstract

A humidifier including a first humidification water tank configured to heat stored water, the first humidification water tank including a first humidification water tank wall including a circumferential surface of the first humidification water tank, and a heater provided as a bottom surface of the first humidification water tank and configured to heat the water inside the first humidification water tank, a second humidification water tank configured to generate humidified air by ultrasonic vibration of the water supplied from the first humidification water tank, a first connection pipe configured to transport the water to the second humidification water tank from the first humidification water tank, a second connection pipe connecting the first humidification water tank and the second humidification water tank, and a pump connected to the second connection pipe and configured to supply the water from the second humidification water tank to the first humidification water tank.

What is claimed is: 
     
         1 . A humidifier comprising:
 a first humidification water tank configured to heat stored water, the first humidification water tank including:
 a first humidification water tank wall including a circumferential surface of the first humidification water tank; and 
 a heater provided as a bottom surface of the first humidification water tank and configured to heat the water inside the first humidification water tank; 
   a second humidification water tank configured to generate humidified air by ultrasonic vibration of the water supplied from the first humidification water tank;   a first connection pipe configured to transport the water from the first humidification water tank to the second humidification water tank;   a second connection pipe connecting the first humidification water tank and the second humidification water tank;   a pump connected to the second connection pipe and configured to supply the water from the second humidification water tank to the first humidification water tank; and   a drain pipe configured to drain the water of the first humidification water tank, the drain pipe being connected to the heater of the first humidification water tank.   
     
     
         2 . The humidifier of  claim 1 , wherein the heater includes:
 a heater cover provided as the bottom surface of the first humidification water tank, and   a heating element located under the heater cover and configured to heat the heater cover, and   wherein the drain pipe is connected to the heater cover.   
     
     
         3 . The humidifier of  claim 2 , wherein the heater cover includes:
 a cover base;   a cover holder protruding upward on a periphery of the cover base, the cover holder including a space in which the heating element is received; and   a cover rim located on a periphery of the cover holder, the cover rim being coupled to the first humidification water tank wall, and   wherein the drain pipe is connected to the cover base.   
     
     
         4 . The humidifier of  claim 3 , wherein the drain pipe is spaced apart from the cover holder. 
     
     
         5 . The humidifier of  claim 2 , wherein the heater further includes a heater base located at a lower side of the heating element, and
 wherein the drain pipe passes through the heater base.   
     
     
         6 . The humidifier of  claim 2 , wherein the heater further includes:
 a heater base located under the heating element, the heater base including a first drain pipe hole through which the drain pipe passes; and   a heater plate disposed under the heater base, the heater plate including a second drain pipe hole through which the drain pipe passes.   
     
     
         7 . The humidifier of  claim 1 , further comprising:
 a drain pipe valve configured to regulate the water moving inside the drain pipe; and   a drain hose connecting the drain pipe and the drain pipe valve.   
     
     
         8 . The humidifier of  claim 7 , wherein the drain hose includes at least two bending regions. 
     
     
         9 . The humidifier of  claim 7 , wherein the heater includes:
 a heater cover located at the bottom surface of the first humidification water tank;   a heating element located under the heater cover, the heating element being configured to heat the heater cover;   a heater base located under the heating element; and   a heater plate disposed under the heater base, and   wherein the drain hose is connected to the drain pipe under the heater plate.   
     
     
         10 . The humidifier of  claim 1 , further comprising:
 a humidification module housing including:
 a space in which the first humidification water tank and the second humidification water tank are disposed; and 
 a drain hose hole; and 
   a drain hose connected to the drain pipe, the drain hose extending to an outside of the humidification module housing through the drain hose hole.   
     
     
         11 . The humidifier of  claim 10 , wherein the drain hose includes at least two bending regions, and
 wherein the at least two bending regions are disposed inside the humidification module housing.   
     
     
         12 . The humidifier of  claim 10 , wherein the humidification module housing further includes a drain hose groove located on a bottom surface of the humidification module housing, the drain hose groove being recessed downward. 
     
     
         13 . The humidifier of  claim 10 , wherein the humidification module housing further includes an upper projection protruding upward from the bottom surface of the humidification module housing, and
 wherein the drain hose is disposed to be bent around a periphery of the upper projection.   
     
     
         14 . The humidifier of  claim 13 , wherein the upper projection is spaced apart in a circumferential direction from the first humidification water tank. 
     
     
         15 . The humidifier of  claim 13 , wherein the drain hose includes:
 a first bending region bent to one side under the drain pipe, and   a second bending region bent at an outer region of the first humidification water tank, the second bending region being disposed on the periphery of the upper projection.   
     
     
         16 . A humidifier comprising:
 a first humidification water tank configured to store and heat water;   a drain pipe configured to drain the water stored in the first humidification water tank;   a humidification module housing including a space in which the first humidification water tank is disposed; and   a drain hose connected to the drain pipe, the drain hose extending to an outside of the humidification module housing, the drain hose including at least one bending region located inside the humidification module housing.   
     
     
         17 . The humidifier of  claim 16 , wherein the humidification module housing further includes an upper projection protruding upward from a bottom surface of the humidification module housing, and
 wherein the bending region is placed on a periphery of the upper projection.   
     
     
         18 . The humidifier of  claim 17 , wherein the upper projection is spaced in a circumferential direction of the first humidification water tank. 
     
     
         19 . The humidifier of  claim 16 , wherein the humidification module housing further includes:
 a drain hose groove into which a portion of the drain hose is inserted, the drain hose groove being located on the bottom surface of the humidification module housing; and   a drain hose hole through which the drain hose passes, the drain hose hole being located at an end portion of the drain hose groove.   
     
     
         20 . The humidifier of  claim 16 , wherein the drain hose further includes:
 a drain pipe connection portion connected to the drain pipe and a hose extension portion passing through the humidification module housing; and   at least two bending regions located between the drain pipe connection portion and the hose extension portion.