Air conditioner indoor unit and air conditioner

An air conditioner comprising:

• an outdoor unit;
• and
• an indoor unit communicating with the outdoor unit through a refrigerant pipe, the indoor unit including:
• a housing provided with an air outlet;
• a volute assembly provided in the housing and including an upper volute and a lower volute, an air outlet duct communicating with the air outlet being formed between the upper volute and the lower volute;
• an air deflector rotatably mounted at the air outlet to open or close the air outlet, and including a peripheral plate and an inner lining plate connected to the peripheral plate, the peripheral plate being in a first arc shape protruding towards an outer side of the air outlet, the inner lining plate being in a second arc shape protruding towards the outer side of the air outlet, two ends of the peripheral plate being connected to two ends of the inner lining plate, respectively, to form a crescent shape, a middle portion of at least one end of the air deflector in a length direction of the air deflector being rotatably connected to the housing through a rotation shaft, to enable the air deflector to rotate between:
• an upward-opening state in which a lower side of the air deflector is closer to the upper volute than to the lower volute, and
• a downward-opening state in which an upper side of the air deflector is closer to the lower volute than to the upper volute;
• and
• a louver assembly connected to a windward surface of the air deflector, the louver assembly being rotatably connected to the inner lining plate of the air deflector;
• wherein:
• a distance between an upper edge of the air deflector and a rotation axis of the air deflector is L1, a distance between a lower edge of the air deflector and the rotation axis of the air deflector is L2;
• a distance between an upper edge of the air outlet and the rotation axis of the air deflector is S1, and S1 is equal to a sum of L1 and a first reserved gap;
• a distance between a lower edge of the air outlet and the rotation axis of the air deflector is S2, and S2 is equal to a sum of L2 and a second reserved gap, S1 is greater than S2, and L1 is greater than L2;
• and
• the first reserved gap is greater than or equal to 3 mm and less than or equal to 5 mm, and the second reserved gap is greater than or equal to 3 mm and less than or equal to 5 mm.

An air conditioner indoor unit comprising:

• a housing provided with an air outlet;
• a volute assembly provided in the housing and including an upper volute and a lower volute, an air outlet duct communicating with the air outlet being formed between the upper volute and the lower volute;
• an air deflector rotatably mounted at the air outlet to open or close the air outlet, and including a peripheral plate and an inner lining plate connected to the peripheral plate, the peripheral plate being in a first arc shape protruding towards an outer side of the air outlet, the inner lining plate being in a second arc shape protruding towards the outer side of the air outlet, two ends of the peripheral plate being connected to two ends of the inner lining plate, respectively, to form a crescent shape, the first arc shape being not parallel to the second arc shape, a middle portion of at least one end of the air deflector in a length direction of the air deflector being rotatably connected to the housing through a rotation shaft, to enable the air deflector to rotate between:
• an upward-opening state in which a lower side of the air deflector is closer to the upper volute than to the lower volute, and
• a downward-opening state in which an upper side of the air deflector is closer to the lower volute than to the upper volute;
• and
• a louver assembly connected to a windward surface of the air deflector, the louver assembly being rotatably connected to the inner lining plate of the air deflector;
• wherein:
• a distance between an upper edge of the air deflector and a rotation axis of the air deflector is L1, a distance between a lower edge of the air deflector and the rotation axis of the air deflector is L2;
• a distance between an upper edge of the air outlet and the rotation axis of the air deflector is S1, and S1 is equal to a sum of L1 and a first reserved gap;
• a distance between a lower edge of the air outlet and the rotation axis of the air deflector is S2, and S2 is equal to a sum of L2 and a second reserved gap, S1 is greater than S2, and L1 is greater than L2;
• and
• the first reserved gap is greater than or equal to 3 mm and less than or equal to 5 mm, and the second reserved gap is greater than or equal to 3 mm and less than or equal to 5 mm.