Heat exchanger and a method of manufacturing a heat exchanger

A heat exchanger for enabling the flow of a heat exchanging medium, said heat exchanger comprising:

• a collecting box having a peripheral edge;
• a tube bottom having a peripheral edge comprising a trough receiving said collecting box and a plurality of openings, said peripheral edge of said collecting box being coupled to a bottom of said trough;
• an intermediate bottom having a plurality of openings and a peripheral edge coupled to the bottom of said peripheral edge of said trough;
• and
• a plurality of flat tubes coupled to said plurality of openings in said intermediate bottom.

A heat exchanger for enabling the flow of a heat exchanging medium, said heat exchanger comprising:

• a collecting box having a peripheral edge;
• a tube bottom having a peripheral edge and a plurality of openings, said peripheral edge of said tube bottom being coupled to a peripheral edge of said collecting box;
• an intermediate bottom having a plurality of openings and a peripheral edge, said peripheral edge coupled between said peripheral edge of said tube bottom and said peripheral edge of said collecting box;
• and
• a plurality of flat tubes soldered to said plurality of openings in said intermediate bottom.

A heat exchanger for enabling the flow of a heat exchanging medium, said heat exchanger comprising:

• a collecting box having a peripheral edge;
• a tube bottom having a peripheral edge and a plurality of openings, said peripheral edge of said tube bottom being coupled to said peripheral edge of said collecting box;
• an intermediate bottom having a plurality of openings and a peripheral edge, said peripheral edge coupled to said peripheral edge of said tube bottom;
• and
• a plurality of flat tubes soldered to said plurality of openings in said intermediate bottom.

A heat exchanger for enabling the flow of a heat exchanging medium, said heat exchanger comprising:

• a collecting box having a peripheral edge;
• a tube bottom having a peripheral edge and a plurality of openings said peripheral edge of said tube bottom being coupled to said peripheral edge of said collecting box;
• an intermediate bottom having a plurality of openings and a peripheral edge, said peripheral edge coupled to said peripheral edge of said tube bottom;
• and
• a plurality of flat tubes coupled to said plurality of openings in said intermediate bottom;
• wherein said plurality of openings of said tube bottom are adapted to receive a plurality of flat tubes having a first major dimension.

A heat exchanger for enabling the flow of a heat exchanging medium, said heat exchanger comprising:

• a collecting box having a peripheral edge;
• a tube bottom having a peripheral edge and a plurality of openings, said peripheral edge of said tube bottom being coupled to said peripheral edge of said collecting box;
• an intermediate bottom having a plurality of openings and a peripheral edge, said peripheral edge coupled to said peripheral edge of said tube bottom;
• a plurality of flat tubes coupled to said plurality of openings in said intermediate bottom;
• and
• a space between said tube bottom and said intermediate bottom, said space containing said heat exchanging medium.

A heat exchanger for enabling the flow of a heat exchanging medium, said heat exchanger comprising:

• a collecting box having a peripheral edge;
• a tube bottom having a peripheral edge and a plurality of openings, said peripheral edge of said tube bottom being coupled to said peripheral edge of said collecting box;
• an intermediate bottom having a plurality of openings and a peripheral edge, said peripheral edge coupled to said peripheral edge of said tube bottom;
• and
• a plurality of flat tubes coupled to said plurality of openings in said intermediate bottom;
• wherein said tube bottom comprises a trough receiving said peripheral edge of said collector box.

A heat exchanger for enabling the flow of a heat exchanging medium, said heat exchanger comprising:

• a collecting box having a peripheral edge;
• a tube bottom having a peripheral edge and a plurality of openings, said peripheral edge of said tube bottom being coupled to said peripheral edge of said collecting box;
• an intermediate bottom having a plurality of openings and a peripheral edge, said peripheral edge coupled to said peripheral edge of said tube bottom;
• and
• a plurality of flat tubes coupled to said plurality of openings in said intermediate bottom;
• wherein said peripheral edge of said intermediate bottom is soldered to a vertical portion of said trough of said tube bottom.

A heat exchanger for enabling the flow of a heat exchanging medium, said heat exchanger comprising:

• a collecting box having a peripheral edge;
• a tube bottom having a peripheral edge and a plurality of openings, said peripheral edge of said tube bottom being coupled to said peripheral edge of said collecting box;
• an intermediate bottom having a plurality of openings and a peripheral edge, said peripheral edge coupled to said peripheral edge of said tube bottom;
• and
• a plurality of flat tubes coupled to said plurality of openings in said intermediate bottom;
• wherein said intermediate bottom is soldered to a bottom of said trough of said bottom.

A method of manufacturing a heat exchanger, said method comprising the steps of:

• coupling a collecting box to a tube bottom;
• coupling an intermediate bottom to said tube bottom;
• and
• soldering a plurality of flat tubes to said intermediate bottom.

A method of manufacturing a heat exchanger, said method comprising the steps of:

• coupling a collecting box to a tube bottom;
• coupling an intermediate bottom to said tube bottom;
• coupling a plurality of flat tubes to said intermediate bottom;
• and
• providing a space between said tube bottom and said intermediate bottom which is occupied by a heat exchanging medium.

A method of manufacturing a heat exchanger, said method comprising the steps of:

• coupling a collecting box to a tube bottom;
• coupling an intermediate bottom to said tube bottom;
• and
• coupling a plurality of flat tubes to said intermediate bottom;
• wherein said step of coupling a collecting box to said tube bottom comprises coupling a tube bottom having plurality of openings adapted to receive a plurality of flat tubes having a first major dimension, and wherein said step of coupling an intermediate bottom to said tube bottom comprises coupling an intermediate bottom having a plurality of openings which are adapted to receive a plurality of flat tubes having a second major dimension to said tube bottom.