Evaporator and vehicular air conditioner using the same

An evaporator comprising:

• a first upper header section;
• a first lower header section provided substantially parallel to the first upper header section;
• first heat exchange tubes provided between the first upper header section and the first lower header section to connect the first upper header section and the first lower header section, the first heat exchange tubes comprising:
• a first tube row which comprises first row heat exchange tubes among the first heat exchange tubes and in which refrigerant is to flow downward;
• a first split flow control section including at least one first hole and provided in the first upper header section to divide an inside of the first upper header section into a first space and a second space which communicates with the first space via the at least one first hole, the second space communicating with the first tube row via the first space which is connected to the first tube row;
• a second upper header section provided substantially parallel to the first upper header section;
• a second lower header section provided substantially parallel to the first lower header section;
• second heat exchange tubes provided between the second upper header section and the second lower header section to connect the second upper header section and the second lower header section, the second heat exchange tubes comprising:
• a second tube row comprising second row heat exchange tubes among the second heat exchange tubes and provided opposite to the first tube row, the refrigerant being to flow downward in the second tube row;
• a second split flow control section including at least one second hole and provided in the second upper header section to divide an inside of the second upper header section into a third space and a fourth space which communicates with the third space via the at least one second hole, the fourth space communicating with the second tube row via the third space which is connected to the second tube row, the first cross-sectional area of the at least one first hole being larger than the second cross-sectional area of the at least one second hole;
• and
• the evaporator to be placed in an inclined state so that the first upper header section is provided above the second upper header section in a vertical direction.