Air source instant water heater

Abstract

Disclosed is an air source instant water heater, comprising an instant electric heating device ( 1 ), a water inlet pipe ( 11 ) and a water outlet pipe ( 12 ) connected thereto, a hot water outlet ( 21 ) of an air source heating device ( 2 ) in communication with the water inlet pipe ( 11 ) of the instant electric heating device ( 1 ), and a cold water inlet ( 22 ) of the air source heating device ( 2 ) in communication with a tap-water pipe ( 3 ).

What is claimed is: 
     
         1 . An air source instant water heater, comprises an instant electrical heating device, and a water inlet pipe and a water outlet pipe are mounted on the instant electrical heating device, which is characterized in: the heater further includes an air source heating device ,and a hot water outlet of the air source heating device is connected with the water inlet pipe of the instant electrical heating device, and a cold water inlet of the air source heating device is connected with a tap-water pipe. 
     
     
         2 . An air source instant water heater according to  claim 1 , which is characterized in: The air source heating device includes air flow system, working substance circular system and water flow pipeline system; the air flow system includes air inlet port which sucks air in, air exhaust port which exhausts air, and tube-axial fan for driving air flow; the working substance circular system includes condenser mounted at air inlet port and evaporator mounted at air exhaust port, the first pathway and the second pathway are set between the condenser and the evaporator, the working substance in the working substance circular system flows from evaporator to condenser through the first pathway, and a compressor is connected on the first pathway, the working substance flows from condenser to evaporator through the second pathway, and an expansion valve is connected on the second pathway, the working substance in the working substance circular system circularly flows between condenser and evaporator; the water flow pipeline system includes sequentially connected cold water inlet, heat exchange pipeline and hot water outlet, the cold water inlet is connected with tap-water pipe, and hot water outlet is connected with water inlet pipe of instant electrical heating device, the heat exchange pipeline is contact with the condenser of the working substance circular system, and the water in water flow pipeline system exchanges heat with the working substance in working substance circular system. 
     
     
         3 . An air source instant water heater according to  claim 1  or  2 , which is characterized in: on the pipeline between water inlet pipe and water outlet pipe of the instant electrical heating device there is set a water flow activated valve.