Abstract: An air conditioner indoor unit including housing including rear housing provided with operation window and cover plate covering the operation window. The housing has heat exchange air channel, indoor air inlet and outlet in communication with the heat exchange air channel, fresh air through hole, and fresh air outlet. Part of the fresh air through hole is located in the rear housing and other part of the fresh air through hole is located in the rear cover plate. The air conditioner indoor unit further includes fresh air module arranged in the housing and including base having inlet arranged in correspondence with the fresh air through hole and fresh air outflow channel in communication with the fresh air outlet, filter assembly arranged at the base and located between the inlet and the fresh air outflow channel, and fresh air fan arranged at the base.

Abstract: The invention discloses a valve element for an electronic expansion valve, which includes a rotor core and a hollow rotor cylinder sleeved outside the rotor core. Ribs and positioning grooves of a positioning device on the valve element are changed, so that the positioning grooves and an inner wall of a guiding section hole are stepped, an even thickness of the inner wall is maintained, and a working performance of the electronic expansion valve is improved.

Abstract: The invention discloses a valve element for an electronic expansion valve, which includes a rotor core and a hollow rotor cylinder sleeved outside the rotor core. Ribs and positioning grooves of a positioning device on the valve element are changed, so that the positioning grooves and an inner wall of a guiding section hole are stepped, an even thickness of the inner wall is maintained, and a working performance of the electronic expansion valve is improved.