Heat exchanger and an air conditioner

Abstract

According to one embodiment, a heat exchanger includes a pipe through which a fluid flows, and a supply device that supplies the fluid to the pipe. The pipe includes a flexible part deformed by flowing of the fluid, and a constricted part located at a downstream side of the flexible part along a flow direction of the fluid.

What is claimed is: 
     
         1 . A heat exchanger comprising:
 a pipe through which a fluid flows; and   a supply device that supplies the fluid to the pipe,   the pipe includes
 a flexible part deformed by flowing of the fluid, and 
 a constricted part located at a downstream side of the flexible part along a flow direction of the fluid. 
   
     
     
         2 . The heat exchanger according to  claim 1 , wherein
 the flexible part vibrates by being expanded and shrunk due to the flowing of the fluid.   
     
     
         3 . The heat exchanger according to  claim 1 , further comprising:
 a valve capable of changing an inner diameter of the constricted part; and   a valve controller that controls driving of the valve.   
     
     
         4 . The heat exchanger according to  claim 1 , wherein
 the inner diameter of the constricted part is smaller than an inner diameter of the flexible part.   
     
     
         5 . The heat exchanger according to  claim 1 , wherein
 the flexible part is formed of an expandable and shrinkable elastic material.   
     
     
         6 . The heat exchanger according to  claim 1 , further comprising:
 a plurality of fins aligned in contact with the pipe.   
     
     
         7 . The heat exchanger according to  claim 1 , wherein
 the pipe includes
 a first flexible part deformed by the flowing of the fluid, 
 a first constricted part located at the downstream side of the first flexible part along the flow direction, 
 a second flexible part deformed by the flowing of the fluid and located at the downstream side of the first constricted pert along the flow direction, and 
 a second constricted part located at the downstream side of the second flexible part along the flow direction. 
   
     
     
         8 . The heat exchanger according to  claim 1 , further comprising:
 a vibration generator installed to the pipe at an upstream side of the flexible part along the flow direction, that occurs a vibration to the fluid supplied from the supply device.   
     
     
         9 . The heat exchanger according to  claim 1 , wherein
 the supply device is a compressor that flows out the fluid having high pressure or an expansion valve that flows out the fluid having low pressure.   
     
     
         10 . An air conditioner comprising:
 the heat exchanger of  claim 1 ; and   at least one of a fan and a controller.   
     
     
         11 . The air conditioner according to  claim 10 , further comprising:
 a four-way valve that changes the flow direction of the fluid.