Abstract: An air guide ring for an air conditioner outdoor unit is provided. The air guide ring includes an air guide ring body. An air guide channel is defined in the air guide ring body. The air guide ring body includes a first limiting portion and a second limiting portion. The first limiting portion and the second limiting portion are configured to fit with a fixing member of the air conditioner outdoor unit and to implement bi-directional limiting, so as to prevent inward contraction deformation and outward expansion deformation of the air guide ring body from occurring.

Abstract: A capacitance detecting circuit includes induction units; a transferring capacitor configured to transfer charges to a capacitor of a scanned induction unit; a charging module that charges the transferring capacitor, wherein a first terminal of the charging module connects to the first terminal of the transferring capacitor, and a second terminal of the charging module connects to a first power supply; a discharging module that discharges the transferring capacitor and including a first resistor and a second switch; and a controller connected to the charging module, the transferring capacitor and the discharging module, and configured to control the second switch to switch on when a voltage of the transferring capacitor is larger than a preset threshold voltage, and to update a count value and detect a touch on the induction units according to the count value.

Abstract: A capacitance detecting circuit includes induction units; a transferring capacitor configured to transfer charges to a capacitor of a scanned induction unit; a charging module that charges the transferring capacitor, wherein a first terminal of the charging module connects to the first terminal of the transferring capacitor, and a second terminal of the charging module connects to a first power supply; a discharging module that discharges the transferring capacitor and including a first resistor and a second switch; and a controller connected to the charging module, the transferring capacitor and the discharging module, and configured to control the second switch to switch on when a voltage of the transferring capacitor is larger than a preset threshold voltage, and to update a count value and detect a touch on the induction units according to the count value.

Abstract: A capacitance detecting circuit includes induction units; a transferring capacitor configured to transfer charges to a capacitor of a scanned induction unit; a charging module that charges the transferring capacitor, wherein a first terminal of the charging module connects to the first terminal of the transferring capacitor, and a second terminal of the charging module connects to a first power supply; a discharging module that discharges the transferring capacitor and including a first resistor and a second switch; and a controller connected to the charging module, the transferring capacitor and the discharging module, and configured to control the second switch to switch on when a voltage of the transferring capacitor is larger than a preset threshold voltage, and to update a count value and detect a touch on the induction units according to the count value.

Abstract: A capacitance detecting circuit includes induction units; a transferring capacitor configured to transfer charges to a capacitor of a scanned induction unit; a charging module that charges the transferring capacitor, wherein a first terminal of the charging module connects to the first terminal of the transferring capacitor, and a second terminal of the charging module connects to a first power supply; a discharging module that discharges the transferring capacitor and including a first resistor and a second switch; and a controller connected to the charging module, the transferring capacitor and the discharging module, and configured to control the second switch to switch on when a voltage of the transferring capacitor is larger than a preset threshold voltage, and to update a count value and detect a touch on the induction units according to the count value.