Abstract: Provided is a method for controlling an air conditioner provided with a bipolar ion generation module. The method comprises the following steps: an air conditioner controller determining whether a purification mode control signal for controlling a bipolar ion generation module to start operation is received; if the purification mode control signal is received, the air conditioner controller detecting whether an air conditioner is in a working state; if the air conditioner is in the working state, controlling the bipolar ion generation module to start working; and if the air conditioner is in a standby state, outputting a first drive signal to drive a fan to start operation, and at the same time, controlling a first timer to start timing, and when the timing of the first timer satisfies a first set duration, controlling the bipolar ion generation module to start working. Further disclosed is an air conditioner.

Abstract: A self-crosslinkable polyurethane or polyurethane-urea aqueous dispersion, a preparation method therefor, and a use thereof. Side chains of the polyurethane or polyurethane-urea contain non-sterically-hindered siloxy groups. During the drying and activation of the aqueous dispersion, the siloxys in the side chains are hydrolyzed and crosslinked with each other to increase the cross-linking density, significantly improving the heat resistance, the humidity resistance, and other properties of an adhesive obtained therefrom. The aqueous dispersion itself has a good stability. In addition, an application system based thereon has an excellent stability and a long storage time. The aqueous dispersion is suitable for the preparation of high quality paints and sealants, especially adhesives.

Abstract: A self-crosslinkable polyurethane or polyurethane-urea aqueous dispersion, a preparation method therefor, and a use thereof. Side chains of the polyurethane or polyurethane-urea contain non-sterically-hindered siloxy groups. During the drying and activation of the aqueous dispersion, the siloxys in the side chains are hydrolyzed and crosslinked with each other to increase the cross-linking density, significantly improving the heat resistance, the humidity resistance, and other properties of an adhesive obtained therefrom. The aqueous dispersion itself has a good stability. In addition, an application system based thereon has an excellent stability and a long storage time. The aqueous dispersion is suitable for the preparation of high quality paints and sealants, especially adhesives.

Abstract: The present invention discloses a lock for an ultralow temperature refrigerator, belonging to the field of a refrigeration device. The lock for an ultralow temperature refrigerator according to the present invention is manipulated easily and conveniently. It comprises a lock body with a handle and a lock head, wherein the lock body has, on one side, a shaft hole which along with a rotating shaft of a lock seat attached to the refrigerator door forms a rotating mechanism; the lock body has on the other side a lock opening having the surface of a hump and being engaged with a lock tab of the lock head to form a locking-in mechanism; and an empty cavity containing a lock core is provided above the shaft hole of the lock body with respect to the diagonal direction and accommodates therein a lock-body locking and limiting mechanism formed by a lock stop flake fixed on the lock seat and the empty cavity containing the lock core.