Heat exchanger

A heat exchanger for a refrigeration cycle, comprising:

• a heat exchanging portion configured to exchange heat between a refrigerant flowing through therein and air;
• a liquid reservoir arranged along a lateral surface of the heat exchanging portion and configured to separate a gas-liquid two-phase refrigerant flowing out of the heat exchanging portion into a gas-phase refrigerant and a liquid-phase refrigerant, the liquid reservoir storing the liquid-phase refrigerant;
• a refrigerant adjustment portion configured to
• adjust a flow state of the refrigerant flowing into the refrigerant adjustment portion through a refrigerant passage of the refrigeration cycle,
• supply the refrigerant to the heat exchanging portion, and
• adjust an outflow state and an outflow destination of the refrigerant flowing out of the heat exchanging portion or the liquid reservoir, wherein
• at least a part of the refrigerant adjustment portion is inserted into the liquid reservoir.