Air conditioner indoor unit and air conditioner

The invention relates to the field of air conditioners and discloses an air conditioner indoor unit. The air conditioner indoor unit comprises a shell, a plurality of evaporators, a liquid inlet pipe, a throttling valve, a liquid outlet pipe and a controller. An air outlet is formed in the lower end of the shell. The multiple evaporators are arranged in the shell and are sequentially arranged in the horizontal direction of the air outlet. The liquid inlet pipe comprises a liquid inlet section and a plurality of flow dividing sections connected with the liquid inlet section, and each flow dividing section is connected to the first end of the corresponding evaporator. And the throttle valve is arranged at the shunting section of the liquid inlet pipe. The liquid outlet pipe is connected to the second end of each evaporator. The controller is configured to controllably adjust the opening degree of the throttling valve, and then the air outlet temperature of the air outlet is adjusted. The air outlet temperatures