Air conditioner for preventing corrosion of evaporator
AssigneeDenso Corporation
InventorsKeiichi Yoshii, Sadayuki Kamiya
Life of this patent
Estimating the term…
Abstract
An air conditioner includes a case accommodating an evaporator having a core portion and a lower tan disposed at a bottom of the core portion. The case has a recess portion disposed at an upstream air side of the evaporator, and a covering wall is formed to extend upwardly from the bottom of the recess portion to cover only the lower tank at an immediately upstream air side. When air passes through the evaporator, alien substances contained in air collide with the evaporator and fall to be deposited in the recess portion. Therefore, the deposition of the alien substances do not directly adhere to the lower tank of the evaporator to prevent the evaporator from being corroded.
Claims11
An air conditioner comprising:
- a case for forming an air passage;
- an evaporator, disposed in said case, for cooling air flowing in said air passage, said evaporator including
- a core portion having a plurality of flat tubes through which refrigerant flows and a plurality of fins each of which is connected between adjacent flat tubes, and
- a tank disposed at a lower end of said core portion, for distributing refrigerant into said flat tubes and collecting the refrigerant from said flat tubes;
- a first solid wall member for covering said tank at an immediately upstream air side of said tank, said wall member being integral with said case;
- and
- said case including a second solid wall member substantially equal in height to said first solid wall member for defining a recessed portion disposed immediately upstream air side of said first wall member, said recessed portion being open upwardly to define a bottom portion, said first wall member extending from said bottom portion to entirely cover only said tank.
An air conditioner comprising:
- a case for forming an air passage, said case having a bottom wall member;
- and
- an evaporator disposed in said case, for cooling air flowing in said air passage, said evaporator including
- a core portion having a plurality of flat tubes through which refrigerant flows and a plurality of fins each of which is connected between adjacent flat tubes, and
- a tank disposed at a lower end of said core portion, for distributing refrigerant into said flat tubes and collecting the refrigerant from said flat tubes, wherein:
- said bottom wall member of said case includes
- a first flat surface on which said evaporator is disposed and from which a first solid wall member extends upwardly to only cover said tank on an immediately upstream air side, and
- a second flat surface being connected to said first flat surface by a second solid wall member, said second flat surface being above said first flat surface stepwisely, said second solid wall member being substantially equal in height to said first solid wall member;
- and
- said first solid wall member, said first flat surface and said second solid wall member define a recess portion opened upwardly.
Dependencies are inferred from the claim text.