Heat exchanger and air conditioning device

Abstract

A heat exchanger is provided. The heat exchanger includes a connection tube, a plurality of heat exchange tubes and a plurality of connection joints, and the heat exchanger tubes and the connection joints correspond to each other one by one. Each of the plurality of the heat exchange tubes is in communication with the connection tube via a corresponding connection joint, each of the plurality of connection joints is provided with a connection port, and each of the plurality of connection joints is in communication with the connection tube via the connection port. The connection tube is provided with a distribution tube along an arrangement direction of the heat exchange tubes, the distribution tube is provided with a distribution holes matching the connection port, and the distribution hole is arranged right opposite to the connection port. An air conditioning device having the heat exchanger is further provided.

What is claimed is: 
     
         1 . A heat exchanger, comprising a connection tube, a plurality of heat exchange tubes and a plurality of connection joints, wherein the plurality of heat exchanger tubes and the plurality of connection joints corresponds to each other one by one, each of the plurality of the heat exchange tubes is in communication with the connection tube via a corresponding connection joint; and
 wherein each of the plurality of connection joints is provided with a connection port, a cross section of the connection port is circular-shaped, and each of the plurality of connection joints is connected to and in communication with the connection tube via the connection port; the connection tube is provided with a distribution tube along an arrangement direction of the plurality of heat exchange tubes, the distribution tube is provided with a plurality of distribution holes matching with the connection port, and each of the plurality of distribution holes is arranged right opposite to a corresponding connection port.   
     
     
         2 . The heat exchanger of  claim 1 , wherein a distance between adjacent two of the plurality of connection joints is equal to a distance between corresponding two of the plurality of heat exchange tubes, respectively. 
     
     
         3 . The heat exchanger of  claim 1 , wherein each of the plurality of connection joints is provided with a turbulator, and the connection portion is in communication with the heat exchange tube via the turbulator. 
     
     
         4 . The heat exchanger of  claim 3 , wherein the turbulator is a throttling ring, the throttling ring is fixed in each of the plurality of connection joints; the throttling ring is provided with a flow passage hole, and the flow passage hole is in communication with the heat exchange tube. 
     
     
         5 . The heat exchanger of  claim 4 , wherein each of the plurality of connection joints is provided with a step-shaped surface, an outer periphery wall of the throttling ring abuts against the step-shaped surface, and the throttling ring is fixed to the connection joint. 
     
     
         6 . The heat exchanger of  claim 4 , wherein a plurality of flow passage holes are provided on the throttling ring, and the plurality of flow passage holes are spaced from each other; and sectional areas of the plurality of flow passage holes are different. 
     
     
         7 . The heat exchanger of  claim 1 , wherein each of the plurality of connection joints comprises a circular-shaped joint portion, each of the plurality of connection joints is disposed on the connection tube via the circular-shaped joint portion; and
 the connection port is disposed on the circular-shaped joint portion.   
     
     
         8 . The heat exchanger of  claim 7 , wherein the connection tube  10  is provided with a circular-shaped mounting hole, the circular-shaped joint portion is inserted into the circular-shaped mounting hole, and a depth of the circular-shaped joint portion inserting into the circular-shaped mounting hole is in a range of 2 mm to 10 mm. 
     
     
         9 . The heat exchanger of  claim 7 , wherein each of the plurality of connection joints further comprises a heat exchange-tube inserting portion and a transition connecting portion, and the heat exchange-tube inserting portion is connected to and in communication with the circular-shaped joint portion via the transition connecting portion; and
 the heat exchange tube is disposed on each of the plurality of connection joint via the heat exchange-tube inserting portion.   
     
     
         10 . The heat exchanger of  claim 1 , wherein the connection tube is provided with at least one dividing plate, the at least one dividing plate is disposed in the connection tube along an arrangement direction of the plurality of heat exchange tubes to divide the connection tube into a plurality of independent cavities; and
 the connection tube is provided with a distribution tube in each of the plurality of independent cavities.   
     
     
         11 . The heat exchanger of  claim 10 , wherein the distribution tube is provided with the plurality of distribution holes matching with the connection port and an inlet, and the inlet is not aligned with the plurality of distribution holes. 
     
     
         12 . The heat exchanger of  claim 10 , wherein the distribution tube is provided with an inlet, the distribution tube is disposed inside the connection tube, the distribution tube comprises a first sidewall and second sidewall opposite to each other, the inlet is disposed on the first sidewall of the distribution tube, and a distance between the first sidewall of the distribution tube and the inner surface of the connection tube is smaller than a distance between the second sidewall of the distribution tube and the inner surface of the connection tube. 
     
     
         13 . The heat exchanger of  claim 12 , wherein the first sidewall of the distribution tube is tangential to the inner surface of the connection tube. 
     
     
         14 . The heat exchanger of  claim 10 , further comprising a distributor, wherein the distributor is provided with a plurality of capillaries matching with the distribution tube, and the distributor is capable of being in communication with a distribution tube corresponding to the distributor via the plurality of capillaries. 
     
     
         15 . An air conditioning device, comprising a device main body and a heat exchanger, wherein the heat exchanger is disposed on the device main body and the heat exchanger is a heat exchanger of  claim 1 .