Heat exchanger, air conditioning system and heat exchange system

Abstract

A heat exchanger, an air conditioning system with the heat exchanger, and a heat exchange system with the heat exchanger. The heat exchanger includes a first heat exchanger core and a second heat exchanger core arranged side by side. The first heat exchanger core includes a first main segment, a first connection segment connected with the first main segment, and a first header. The first main segment includes a plurality of first heat exchange tubes arranged in a second direction perpendicular to the first direction. The second heat exchanger core includes a second main segment, a second connection segment connected with the second main segment, and a second header. The second main segment includes a plurality of second heat exchange tubes arranged in the second direction. The first main segment includes a first wind resistance region and a second wind resistance region arranged in a third direction perpendicular to the first and second directions, the second wind resistance region being adjacent to the first header, and a wind resistance of the second wind resistance region is smaller than that of the first wind resistance region, thereby improving the performance of the heat exchanger, the air conditioning system, and the heat exchange system.

1 . A heat exchanger comprising:
 a first heat exchanger core and a second heat exchanger core arranged side by side in a first direction,   the first heat exchanger core comprising:
 a first main segment, the first main segment of the first heat exchanger core comprising a plurality of first heat exchange tubes arranged in a second direction perpendicular to the first direction; 
 a first connection segment connected with the first main segment; and 
 a first header connected and fluidly communicated with the plurality of first heat exchange tubes on a side of the first main segment of the first heat exchanger core opposite to the first connection segment, 
   the second heat exchanger core comprising:
 a second main segment, the second main segment of the second heat exchanger core comprising a plurality of second heat exchange tubes arranged in the second direction; 
 a second connection segment connected with the second main segment; and 
 a second header connected and fluidly communicated with the plurality of second heat exchange tubes on a side of the second main segment of the second heat exchanger core opposite to the second connection segment, 
   wherein the plurality of first heat exchange tubes of the first main segment of the first heat exchanger core and the plurality of second heat exchange tubes of the second main segment of the second heat exchanger core are interconnected and in fluid communication by the first connection segment of the first heat exchanger core and the second connection segment of the second heat exchanger core, and   wherein the first main segment of the first heat exchanger core comprises a first wind resistance region and a second wind resistance region arranged in a third direction perpendicular to the first direction and the second direction, or in a first heat exchanger core extension direction perpendicular to the second direction and parallel to a first plane in which the first main segment of the first heat exchanger core is located, the second wind resistance region being adjacent to the first header, and a wind resistance of the second wind resistance region being smaller than that of the first wind resistance region.   
     
     
         2 . The heat exchanger according to  claim 1 , wherein
 the first wind resistance region has a size in the first heat exchanger core extension direction, the first main segment of the first heat exchanger core has a size in the first heat exchanger core extension direction, and a ratio of the size of the first wind resistance region to the size of the first main segment is greater than or equal to 20% and less than or equal to 90%; or   a ratio of a size of the first wind resistance region in the third direction to a size of the first main segment of the first heat exchanger core in the third direction is greater than or equal to 20% and less than or equal to 90%; or   a ratio of a length of a portion of the first heat exchange tube occupied by the first wind resistance region to a length of the first heat exchange tube is greater than or equal to 20% and less than or equal to 90%.   
     
     
         3 . The heat exchanger according to  claim 1 , wherein
 the first heat exchanger core has a first orthographic projection on a second plane in which the second main segment of the second heat exchanger core is located, the second heat exchanger core has a second orthographic projection on the second plane in which the second main segment of the second heat exchanger core is located, and a ratio of an overlapping area between the first orthographic projection of the first heat exchanger core and the second orthographic projection of the second heat exchanger core to an area of the second orthographic projection of the second heat exchanger core is greater than or equal to 50% and less than or equal to 100%.   
     
     
         4 . The heat exchanger according to  claim 1 , wherein
 an angle between the first main segment of the first heat exchanger core and the second main segment of the second heat exchanger core is greater than or equal to 0 degree and less than or equal to 45 degrees.   
     
     
         5 . The heat exchanger according to  claim 1 , wherein
 the first heat exchanger core has a size in the first heat exchanger core extension direction, the second heat exchanger core has a size in a second heat exchanger core extension direction perpendicular to the second direction and parallel to a second plane in which the second main segment of the second heat exchanger core is located, and a ratio of the size of the first heat exchanger core and the size of the second heat exchanger core is greater than or equal to 30% and less than or equal to 100%; or   a ratio of a size of the first heat exchanger core in the third direction to a size of the second heat exchanger core in the third direction is greater than or equal to 30% and less than or equal to 100%.   
     
     
         6 . The heat exchanger according to  claim 1 , wherein
 the first heat exchanger core has a size in the first heat exchanger core extension direction, the second heat exchanger core has a size in a second heat exchanger core extension direction perpendicular to the second direction and parallel to a second plane in which the second main segment of the second heat exchanger core is located, and a ratio of the size of the first heat exchanger core to the size of the second heat exchanger core is greater than or equal to 60% and less than or equal to 100%; or   a ratio of a size of the first heat exchanger core in the third direction to a size of the second heat exchanger core in the third direction is greater than or equal to 60% and less than or equal to 100%.   
     
     
         7 . The heat exchanger according to  claim 1 , wherein
 the first main segment of the first heat exchanger core further comprises: a first fin connected with the first heat exchange tubes and provided in the first wind resistance region, there is no fin in the second wind resistance region of the first main segment of the first heat exchanger core; the second main segment of the second heat exchanger core further comprises: a second fin connected with the second heat exchange tubes, the second wind resistance region of the first main segment of the first heat exchanger core has a size in the first heat exchanger core extension direction, the second main segment of the second heat exchanger core has a size in a second heat exchanger core extension direction perpendicular to the second direction and parallel to a second plane in which the second main segment of the second heat exchanger core is located, and a ratio of the size of the second wind resistance region to the size of the second main segment of the second heat exchanger core is greater than or equal to 10% and less than or equal to 70%; or   the first main segment of the first heat exchanger core further comprises: a first fin connected with the first heat exchange tubes and provided in the first wind resistance region, there is no fin in the second wind resistance region of the first main segment of the first heat exchanger core; the second main segment of the second heat exchanger core further comprises: a second fin connected with the second heat exchange tubes, the second wind resistance region of the first main segment of the first heat exchanger core has a size in the third direction, the second main segment of the second heat exchanger core has a size in the third direction, and a ratio of the size of the second wind resistance region to the size of the second main segment of the second heat exchanger core is greater than or equal to 10% and less than or equal to 70%.   
     
     
         8 . The heat exchanger according to  claim 1 , wherein
 the first main segment of the first heat exchanger core further comprises: a first fin connected with the first heat exchange tubes and provided in the first wind resistance region, there is no fin in the second wind resistance region of the first main segment of the first heat exchanger core; the second main segment of the second heat exchanger core further comprises: a wavy second fin connected with the second heat exchange tubes and alternately arranged with the second heat exchange tubes, the second wind resistance region of the first main segment of the first heat exchanger core has a size in the first heat exchanger core extension direction, the second fin has a size in a second heat exchanger core extension direction perpendicular to the second direction and parallel to a second plane in which the second main segment of the second heat exchanger core is located, and a ratio of the size of the second wind resistance region to the size of the second fin is greater than or equal to 10% and less than or equal to 70%; or   the first main segment of the first heat exchanger core further comprises: a first fin connected with the first heat exchange tubes and provided in the first wind resistance region, there is no fin in the second wind resistance region of the first main segment of the first heat exchanger core; the second main segment of the second heat exchanger core further comprises: a wavy second fin connected with the second heat exchange tubes and alternately arranged with the second heat exchange tubes, the second wind resistance region of the first main segment of the first heat exchanger core has a size in the third direction, the second fin has a size in the third direction, and a ratio of the size of the second wind resistance region to the size of the second fin is greater than or equal to 10% and less than or equal to 70%.   
     
     
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         15 . The heat exchanger according to  claim 1 , wherein
 the first main segment of the first heat exchanger core further comprises: a first fin connected with the first heat exchange tubes, the first fin comprising a first sub-fin located in the first wind resistance region, and a second sub-fin located in the second wind resistance region and being different from the first sub-fin.   
     
     
         16 . The heat exchanger according to  claim 15 , wherein
 the first sub-fin and the second sub-fin of the first fin are wavy fins, and a peak-to-peak distance of the first sub-fin is greater than or equal to 50% of a peak-to-peak distance of the second sub-fin and less than or equal to 90% of the peak-to-peak distance of the second sub-fin.   
     
     
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         21 . The heat exchanger according to  claim 1 , wherein
 the first wind resistance region is adjacent to the second wind resistance region wherein   the first main segment of the first heat exchanger core further comprises: a first fin connected with the first heat exchange tubes, the first fin comprising a first sub-fin extending in the first wind resistance region and extending to a boundary between the first wind resistance region and the second wind resistance region or near the boundary, and a second sub-fin extending in the first wind resistance region and the second wind resistance region.   
     
     
         22 . The heat exchanger according to  claim 21 , wherein
 the first sub-fin and the second sub-fin of the first fin are wavy fins and have sizes in the first heat exchanger core extension direction, and the size of the first sub-fin of the first fin is greater than or equal to 50% of the size of the second sub-fin of the first fin and less than the size of the second sub-fin of the first fin; or   the first sub-fin and the second sub-fin of the first fin are wavy fins and have sizes in the third direction, and the size of the first sub-fin of the first fin is greater than or equal to 50% of the size of the second sub-fin of the first fin and less than the size of the second sub-fin of the first fin.   
     
     
         23 . The heat exchanger according to  claim 21 , wherein
 a number of the first sub-fins of the first fin is greater than or equal to 10% of a number of the second sub-fins of the first fin and less than or equal to 80% of the number of second sub-fins of the first fin.   
     
     
         24 . The heat exchanger according to  claim 21 , wherein
 the first sub-fin and the second sub-fin of the first fin are wavy fins, the second sub-fin of the first fin comprises a first sub-fin segment located in the first wind resistance region and a second sub-fin segment located in the second wind resistance region, the first sub-fin segment has the same size as the first sub-fin of the first fin in the first heat exchanger core extension direction or in the third direction, and a peak-to-peak distance of the first sub-fin segment of the second sub-fin of the first fin is greater than or equal to 50% of a peak-to-peak distance of the second sub-fin segment and less than or equal to 90% of the peak-to-peak distance of the second sub-fin segment.   
     
     
         25 . The heat exchanger according to  claim 24 , wherein
 a peak-to-peak distance of the first sub-fin segment of the second sub-fin of the first fin is equal to a peak-to-peak distance of the first sub-fin of the first fin.   
     
     
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         27 . The heat exchanger according to  claim 7 , wherein
 the first fin and the second fin have the same shape.   
     
     
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         32 . The heat exchanger according to  claim 1 , wherein
 the second heat exchanger core further comprises an outlet header connected and fluidly communicated with the second header,   the first heat exchanger core further comprises a refrigerant distribution device provided in the first header, and/or   the second heat exchanger core further comprises a refrigerant collection device provided in the second header.   
     
     
         33 . The heat exchanger according to  claim 1 , wherein
 the first heat exchanger core and the second heat exchanger core are formed by bending a flat heat exchanger, and the first connection segment and the second connection segment are bent segments.   
     
     
         34 . The heat exchanger according to  claim 1 , wherein
 a wind resistance of the second wind resistance region of the first main segment of the first heat exchanger core is smaller than that of the second main segment of the second heat exchanger core.   
     
     
         35 . The heat exchanger according to  claim 1 , wherein
 the second wind resistance region has a size in the first heat exchanger core extension direction, the first main segment of the first heat exchanger core has a size in the first heat exchanger core extension direction, and a ratio of the size of the second wind resistance region to the size of the first main segment is greater than or equal to 20% and less than or equal to 50%; or   a ratio of a size of the second wind resistance region in the third direction to a size of the first main segment of the first heat exchanger core in the third direction is greater than or equal to 20% and less than or equal to 50%.   
     
     
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