Refrigerant distributor and evaporator comprising the refrigerant distributor

A refrigerant distributor, characterized in that the refrigerant distributor (4) comprises:

• a box body (42);
• a refrigerant inlet (41) arranged on an upper surface (421) of the box body (42);
• liquid exit openings (46) evenly arranged on a lower surface (422) of the box body (42);
• end plates arranged at two ends of the box body (42) in a length direction and enclosing the box body (42) from the two ends;
• and
• a pre-distributor (3, 3a) arranged inside the box body (42), the top of the pre-distributor (3, 3a) being arranged under the upper surface (421), a length direction of the pre-distributor (3, 3a) being in parallel with a length direction of the box body (42), and the pre-distributor (3, 3a) comprising an inlet (31) for allowing the refrigerant to flow into an internal flow space of the pre-distributor (3, 3a), wherein,
• in a height direction from the lower surface (422) to the upper surface (421) of the box body (42) and within a predetermined height range starting from the lower surface (422), a width of the box body (42) increases,
• side surfaces of the box body (42) are closed;
• the pre-distributor (3, 3a) comprises a distribution box (32) or a distribution pipe (32a), the refrigerant flows into the distribution box (32) or the distribution pipe (32a) through the inlet (31);
• and
• the pre-distributor (3, 3a) is arranged above the lower surface (422) of the box body (42), and the liquid exit openings (46) are distributed on a part of the lower surface (422) of the box body (42) located below the pre-distributor (3, 3a).