Micro-channel heat exchanger

Abstract

The present invention discloses a micro-channel heat exchanger comprising manifolds, a plurality of micro-channel flat tubes connected to the manifolds, and a plurality of rows of fins spaced apart by the micro-channel flat tubes. The micro-channel heat exchanger is provided with at least one bend designed to avoid the deformation of the fins on two inner sides adjacent to the bend due to crushing and meanwhile maintaining the ventilation and heat exchange functionalities of the bend. For example, the bend may include at least one row of fins where the width of the fins are less than the width of the fins on two sides adjacent to the bend. Alternatively, the gap between the fins in the bend can be greater than the gap between the fins on two sides adjacent to the bend. Still alternatively, the bend can be formed with a space for separating cores of the heat exchanger.

1 . A micro-channel heat exchanger, comprising manifolds, a plurality of micro-channel flat tubes connected to the manifolds, and a plurality of rows of fins spaced apart by the micro-channel flat tubes, wherein the micro-channel heat exchanger is provided with at least one bend with each having at least one row of fins, the width of the at least one row of fins inside the bend being less than the width of the fins on two inner sides adjacent to the bend. 
     
     
         2 . The micro-channel heat exchanger according to  claim 1 , wherein the width of the fins at the bend shall decrease as a bending radius decreases. 
     
     
         3 . The micro-channel heat exchanger according to  claim 1 , wherein each bend includes one row of fins. 
     
     
         4 . The micro-channel heat exchanger according to  claim 1 , wherein each bend includes two rows of fins and at least one flat tube located between the two rows of fins, the width of the two rows of fins inside the bend being less than the width of the fins on the two inner sides adjacent to the bend, and the width of the flat at least one tube inside the bend being less than the width of the flat tubes on the two inner sides adjacent to the bend. 
     
     
         5 . A micro-channel heat exchanger, comprising manifolds, a plurality of micro-channel flat tubes connected to the manifolds, and a plurality of rows of fins spaced apart by the micro-channel flat tubes, wherein the micro-channel heat exchanger is provided with at least one bend with each having at least one row of fins, the gap between the fins in at least one row among the at least one row of fins being greater than the gap between the fins on two sides adjacent to the bend. 
     
     
         6 . The micro-channel heat exchanger according to  claim 5 , wherein each bend includes five rows of fins, and wherein the gap between the fins of three rows of the five rows of fins is greater than the gap between the fins of the rows of fins on the two sides adjacent to the bend, and the three rows of fins are respectively disposed on both sides of the remaining two rows of fins of each bend in a spaced manner. 
     
     
         7 . A micro-channel heat exchanger, comprising manifolds, a plurality of micro-channel flat tubes connected to the manifolds, and a plurality of rows of fins spaced apart by the micro-channel flat tubes, wherein the micro-channel heat exchanger is provided with at least one bend with each having a space for separating a micro-channel heat exchanger core. 
     
     
         8 . A micro-channel heat exchanger, comprising manifolds, a plurality of micro-channel flat tubes connected to the manifolds, and a plurality of rows of fins spaced apart by the micro-channel flat tubes, wherein the micro-channel heat exchanger includes at least two heat exchanger cores, the manifolds of each heat exchanger core being respectively in sealing connection with the manifolds of another heat exchanger core via elbow pipes, and a bend is formed between the heat exchanger cores. 
     
     
         9 . The micro-channel heat exchanger according to  claim 8 , wherein the bend is provided with a windshield. 
     
     
         10 . The micro-channel heat exchanger according to  claim 9 , wherein two ends of the windshield are respectively fixed onto the elbow pipes.