Dehumidifier

Abstract

A dehumidifier (100) and a method of dehumidification(100) are provided. The dehumidifier (100) comprises: a housing (110) provided with at least one air inlet(111) and at least one air outlet (112), wherein an air channel (113) connecting the air inlet (111) to the air outlet (112) is formed inside the housing (110); a condensing (120) assembly disposed in the housing (110); a throttle valve (130) connected to an outlet of the condensing (120) assembly; an evaporator (140) provided between the condensing (120) assembly and the air inlet (111); and a compressor (150), an outlet of the compressor (150) is communicated with an inlet of the condensing (120) assembly, wherein an inlet of the compressor (150) is communicated with an outlet of the evaporator (140), and the compressor (150), the condensing (120) assembly, the throttle valve (130) and the evaporator (140) are sequentially connected in series to form a refrigerant circuit. As a result, the temperature difference of the air between the evaporator and the condenser is reduced, so that the difference of the amount of air heat exchange between the evaporator and the condenser is decreased. Therefore, the temperature of the condenser and the evaporator can be in a relative stable state regardless of magnitude of air flow, which improves the dehumidification energy efficiency of the dehumidifier.

What is claimed is: 
     
         1 . A dehumidifier, comprising:
 a housing provided with at least one air inlet and at least one air outlet, wherein an air channel connecting the air inlet to the air outlet is formed inside the housing;   a condensing assembly disposed in the housing;   a throttle valve connected to an outlet of the condensing assembly;   an evaporator provided between the condensing assembly and the air inlet; and   a compressor, an outlet of the compressor is communicated with an inlet of the condensing assembly, wherein an inlet of the compressor is communicated with an outlet of the evaporator, and   the compressor, the condensing assembly, the throttle valve and the evaporator are sequentially connected in series to form a refrigerant circuit.   
     
     
         2 . The dehumidifier of  claim 1 , wherein the condensing assembly comprises a first condenser and a second condenser connected in series, wherein the first condenser and the second condenser are provided in a parallel arrangement in a radial direction of the air channel. 
     
     
         3 . The dehumidifier of  claim 2 , wherein the evaporator provided opposite to the second condenser in an axial direction of the air channel 
     
     
         4 . The dehumidifier of  claim 2 , wherein the condensing assembly further comprises a third condenser connected in series between the second condenser and the throttle valve. 
     
     
         5 . The dehumidifier of  claim 4 , wherein the third condenser is in parallel arrangement with the second condenser in the axial direction of the air channel, and is located between the second condenser and the evaporator. 
     
     
         6 . The dehumidifier of  claim 2 , wherein the first condenser and the second condenser are spaced apart from each other. 
     
     
         7 . The dehumidifier of  claim 1 , wherein the throttle valve is a capillary tube. 
     
     
         8 . The dehumidifier of  claim 7 , wherein the number of the capillary tubes is a plurality, and the plurality of the capillary tubes is connected in parallel. 
     
     
         9 . The dehumidifier of  claim 1 , wherein it further comprises a liquid collecting assembly provided corresponding to the evaporator and used to collect a liquid condensed on the evaporator. 
     
     
         10 . The dehumidifier of  claim 9 , wherein the liquid collecting assembly comprises a liquid collecting tray, a conduit and a liquid collecting tank. 
     
     
         11 . The dehumidifier of  claim 10 , wherein the liquid collecting tray is provided corresponding to the evaporator and is communicated with the liquid collecting tank through the conduit. 
     
     
         12 . The dehumidifier of  claim 1 , wherein it further comprises an air guiding device for driving air flowing along the air channel. 
     
     
         13 . The dehumidifier of  claim 12 , wherein the air guiding device comprises a blower disposed along the air channel at a position behind the condensing assembly and close to the air outlet. 
     
     
         14 . The dehumidifier of  claim 1 , wherein it further comprises a clapboard provided in the air channel, the clapboard being connected to an inner wall of the housing to form a first flow channel and a second flow channel isolated from each other in the air channel. 
     
     
         15 . The dehumidifier of  claim 14 , wherein and wherein, the first condenser is accommodated in the first flow channel, and the second condenser and the evaporator are accommodated in the second flow channel. 
     
     
         16 . The dehumidifier of  claim 1 , wherein a filtration device is further provided on the air inlet and a protective device is further provided on the air outlet. 
     
     
         17 . The dehumidifier of  claim 1 , wherein it further comprises a foldable handle assembly attachable to the housing of the dehumidifier. 
     
     
         18 . A method of dehumidification, comprising:
 obtaining a dehumidifier comprising
 a housing provided with at least one air inlet and at least one air outlet, wherein an air channel connecting the air inlet to the air outlet is formed inside the housing, 
 a condensing assembly disposed in the housing, 
 a throttle valve connected to an outlet of the condensing assembly, 
 an evaporator provided between the condensing assembly and the air inlet, and 
 a compressor, an outlet of the compressor is communicated with an inlet of the condensing assembly, wherein an inlet of the compressor is communicated with an outlet of the evaporator; 
 placing the dehumidifier in a working position; 
 powering the dehumidifier to start operating. 
   
     
     
         19 . A method of  claim 18 , wherein the step of placing the dehumidifier in a working position comprises moving the dehumidifier to a desired location.