Abstract: An air conditioner indoor unit includes a body including an air outlet, an outer air deflector located at the air outlet and configured to open and close the air outlet, and an inner air deflector located at an inner side of the outer air deflector and configured to expose and cover at least part of the outer air deflector. The outer air deflector includes a plurality of vent holes penetrating the outer air deflector along a thickness direction of the outer air deflector.

Abstract: An air conditioner indoor unit includes a body including an air outlet, an outer air deflector provided at the air outlet and configured to open and close the air outlet, and an inner air deflector located at an inner side of the outer air deflector. The inner air deflector includes a plurality of vent holes penetrating the inner air deflector in a thickness direction of the inner air deflector. A total area of the plurality of vent holes is not smaller than 50% of a total area of the inner air deflector.

Abstract: An envelope tracking method and device are provided. The envelope tracking method includes: acquiring, by a boost circuit, a target envelope tracking input current signal, and transmitting, by the boost circuit, the target envelope tracking input current signal to an amplifier circuit, where the amplifier circuit includes an operational amplifier and a feedback network, and the operational amplifier operates in a mode of floating ground; and performing, by the amplifier circuit, closed-loop conversion and amplification on the target envelope tracking input current signal and outputting, by the amplifier circuit, an envelope tracking output voltage.

Abstract: An air conditioner indoor unit includes a body including an air outlet, an outer air deflector located at the air outlet and configured to open and close the air outlet, and an inner air deflector located at an inner side of the outer air deflector and configured to expose and cover at least part of the outer air deflector. The outer air deflector includes a plurality of vent holes penetrating the outer air deflector along a thickness direction of the outer air deflector.

Abstract: An air conditioner indoor unit includes a body including an air outlet, an outer air deflector provided at the air outlet and configured to open and close the air outlet, and an inner air deflector located at an inner side of the outer air deflector. The inner air deflector includes a plurality of vent holes penetrating the inner air deflector in a thickness direction of the inner air deflector. A total area of the plurality of vent holes is not smaller than 50% of a total area of the inner air deflector.

Abstract: An air conditioner indoor unit includes a body including an air outlet, an outer air deflector arranged at the air outlet and configured to open and close the air outlet, and an inner air deflector arranged at an inner side of the outer air deflector. The outer air deflector includes a plurality of first vent holes penetrating the outer air deflector in a thickness direction of the outer air deflector. The inner air deflector includes a plurality of second vent holes penetrating the inner air deflector in a thickness direction of the inner air deflector.

Abstract: Disclosed is a collapsible container and a hinge used for the collapsible container. The hinge includes an inner hinge, an outer hinge, a first pivoting pin and a second pivoting pin movably and pivotally connected to the inner hinge and the outer hinge. The inner hinge and outer hinge are both provided with pivoting holes, respectively, and the first pivoting pin and the second pivoting pin are respectively inserted into the corresponding pivoting holes to pivotally connected or disconnect the inner hinge with the outer hinge. When one of the first pivoting pin and the second pivoting pin is pulled out, the outer hinge can overturn around the other pivoting pin hence to make the end wall overturn and fold towards inside or outside of the container body. When the first pivoting pin and the second pivoting pin are simultaneously located within the pivoting holes of the corresponding inner hinge and outer hinge, the end wall is fixed to the vertical state.

Abstract: Disclosed is a collapsible container and a hinge used for the collapsible container. The hinge includes an inner hinge, an outer hinge, a first pivoting pin and a second pivoting pin movably and pivotally connected to the inner hinge and the outer hinge. The inner hinge and outer hinge are both provided with pivoting holes, respectively, and the first pivoting pin and the second pivoting pin are respectively inserted into the corresponding pivoting holes to pivotally connected or disconnect the inner hinge with the outer hinge. When one of the first pivoting pin and the second pivoting pin is pulled out, the outer hinge can overturn around the other pivoting pin hence to make the end wall overturn and fold towards inside or outside of the container body. When the first pivoting pin and the second pivoting pin are simultaneously located within the pivoting holes of the corresponding inner hinge and outer hinge, the end wall is fixed to the vertical state.