Abstract: A heat pump air conditioning system includes a compressor, a heat pump module, and an air conditioning unit, where the air conditioning unit includes an evaporator and an internal condenser, the heat pump module includes multiple air conditioning components, and a surface of the heat pump module is provided with multiple heat exchange interfaces connected to the air conditioning components, and the compressor, the evaporator, or the internal condenser is connected to the heat pump module through the heat exchange interfaces. The present application achieves the modularity of the heat pump air conditioning system, which is conducive to reducing the difficulty in installing and arranging the heat pump air conditioning system. In addition, a vehicle using the heat pump air conditioning system is also referred to.

Abstract: A rotation speed control method and system, a device, and a storage medium is provided, which is applied to a heat pump system. The heat pump system includes a throttling short tube and a compressor, both sides of the throttling short tube are provided with a temperature sensor and a pressure sensor. The rotation speed control method includes: collecting actual data of the temperature sensors and the pressure sensors, processing to obtain temperature ratio data and pressure ratio data, and obtaining a corresponding oil content prediction model through matching; obtaining predicted oil content data according to the temperature ratio data and the pressure ratio data; and controlling a rotation speed of the compressor according to the predicted oil content data.