Heat exchanger and air-conditioning apparatus including heat exchanger

A heat exchanger comprising:

• a plurality of heat transfer pipes provided at spacings from each other in a first direction;
• a header having an insertion hole in which a front end of each of the plurality of heat transfer pipes is inserted from a second direction orthogonal to the first direction;
• and
• a fin attached between adjacent ones of the plurality of heat transfer pipes,
• wherein
• the header includes a divider configured to divide an inside of the header in the second direction, into a first space in which the insertion hole is provided and a second space to which a refrigerant pipe is connected,
• the refrigerant pipe is connected to a side surface, which is an end face of the header in the first direction,
• the divider is provided with an opening surrounding an outer periphery of the front end of the heat transfer pipe as seen from the second direction, and the opening is shaped to have a gap between the opening and the outer periphery of the front end of the heat transfer pipe as seen from the second direction,
• wherein a number of a plurality of the openings is smaller than a number of the plurality of heat transfer pipes.

A heat exchanger comprising:

• a plurality of heat transfer pipes provided at spacings from each other in a first direction;
• a header having an insertion hole in which a front end of each of the plurality of heat transfer pipes is inserted from a second direction orthogonal to the first direction;
• and
• a fin attached between adjacent ones of the plurality of heat transfer pipes,
• wherein
• the header includes a divider configured to divide an inside of the header, in the second direction, into a first space in which the insertion hole is provided and a second space to which a refrigerant pipe is connected,
• the refrigerant pipe is connected to a side surface, which is an end face of the header in the first direction,
• the divider is provided with an opening surrounding an outer periphery of the front end of the heat transfer pipe as seen from the second direction, and
• the opening is shaped to have a gap between the opening and the outer periphery of the front end of the heat transfer pipe as seen from the second direction,
• wherein the divider is in a corrugated shape having raised and depressed portions at spacings smaller than a width of each of the adjacent heat transfer pipes.