Heat exchanger for hvac unit

Abstract

Embodiments of the present disclosure are directed to a heat exchanger system that includes a conduit configured to flow a working fluid therethrough, where the conduit has a first portion, a second portion, and a bend directly coupling the first portion and the second portion, where the first portion includes a first header connection, the second portion includes a second header connection, and the bend is distal to the first header connection and the second header connection and a support plate coupled to the bend and positioned between the first portion and the second portion of the conduit.

1 . A heat exchanger system, comprising:
 a microchannel tube configured to flow a working fluid therethrough, wherein the microchannel tube comprises a first portion, a second portion, and a bend directly coupling the first portion and the second portion, wherein the first portion comprises a first header connection, the second portion comprises a second header connection, and the bend is distal to the first header connection and the second header connection; and   a support plate coupled to the bend and positioned between the first portion and the second portion of the microchannel tube.   
     
     
         2 . The system of  claim 1 , comprising a header fluidly coupled to the first header connection and the second header connection. 
     
     
         3 . The system of  claim 2 , wherein the support plate extends along a length of the microchannel tube, and wherein the support plate is coupled to the bend at a first end of the support plate, and wherein the support plate is coupled to the header at a second end of the support plate. 
     
     
         4 . The system of  claim 2 , wherein the header comprises a first passage and a second passage integrated into a common housing. 
     
     
         5 . The system of  claim 4 , wherein the first passage, the second passage, or both comprises a semi-circular cross-section. 
     
     
         6 . The system of  claim 4 , wherein the first passage and the second passage are separated from one another by a divider. 
     
     
         7 . The system of  claim 4 , wherein the first passage and the second passage are separated from one another by a third passage extending along a length of the header. 
     
     
         8 . The system of  claim 7 , wherein the third passage comprises air sealed within the third passage to block thermal energy transfer between the first passage and the second passage of the header. 
     
     
         9 . The system of  claim 2 , wherein the header comprises a first header portion and a second header portion that are physically separate from one another. 
     
     
         10 . The system of  claim 9 , wherein the first header portion and the second header portion are each coupled a support bracket. 
     
     
         11 . The system of  claim 9 , wherein the first header portion and the second header portion are offset from one another relative to a body of the microchannel tube, such that the first header portion and the second header portion form an angle with respect to one another and the body of the microchannel tube. 
     
     
         12 . The system of  claim 11 , wherein the first header connection is twisted relative to a body of the first portion to fluidly couple with the first header portion. 
     
     
         13 . The system of  claim 2 , wherein the header comprises a longitudinal axis, and wherein the first portion of the microchannel tube and the second portion of the microchannel tube are substantially aligned with one another at a common location along the longitudinal axis. 
     
     
         14 . The system of  claim 1 , comprising a first set of fins extending from a first surface of the support plate toward the first portion of the microchannel tube and second set of fins extending from a second surface of the support plate, opposite the first surface, toward the second portion of the microchannel tube. 
     
     
         15 . The system of  claim 14 , wherein a fin density of the first set of fins, the second set of fins, or both, is between 25 and 30 fins per inch. 
     
     
         16 . The system of  claim 1 , comprising a mounting bracket coupled to the bend of the microchannel tube and configured to mount the heat exchanger to a component of a climate management system. 
     
     
         17 . A heat exchanger system, comprising:
 a microchannel tube configured to flow a working fluid therethrough, wherein the microchannel tube comprises a first portion, a second portion, and a bend coupling the first portion and the second portion, wherein the first portion comprises a first header connection, the second portion comprises a second header connection, and wherein the bend is distal to the first header connection and the second header connection; and   a single, integrated header comprising a first passage and a second passage, wherein the first header connection is fluidly coupled to the first passage, and wherein the second header connection is fluidly coupled to the second passage.   
     
     
         18 . The system of  claim 17 , comprising a support plate coupled to the bend and positioned between the first portion and the second portion of the microchannel tube, wherein the support plate extends along a length of the microchannel tube, and wherein the support plate is coupled to the bend at a first end of the support plate, and wherein the support plate is coupled to the header at a second end of the support plate. 
     
     
         19 . The system of  claim 17 , wherein the first passage and the second passage are separated from one another by a divider. 
     
     
         20 . The system of  claim 17 , wherein the first passage and the second passage are separated from one another by a third passage of the single, integrated header. 
     
     
         21 . The system of  claim 20 , wherein the third passage comprises a vacuum to block thermal energy transfer between the first passage and the second passage of the header. 
     
     
         22 . A climate management system, comprising:
 a heat exchanger configured to be positioned along a working fluid circuit of the climate management system, wherein the heat exchanger comprises a microchannel tube configured to flow a working fluid therethrough, wherein the microchannel tube comprises a first portion, a second portion, and a bend coupling the first portion and the second portion, wherein the first portion comprises a first header connection, the second portion comprises a second header connection, wherein the bend is distal to the first header connection and the second header connection, and wherein the heat exchanger comprises a support plate coupled to the bend and positioned between the first portion and the second portion of the microchannel tube.   
     
     
         23 . The system of  claim 22 , comprising a header fluidly coupled to the first header connection and the second header connection. 
     
     
         24 . The system of  claim 23 , wherein the header comprises a first passage and a second passage integrated within a common housing. 
     
     
         25 . The system of  claim 23 , wherein the header comprises a first header portion and a second header portion that are physically separate from one another.