Abstract: A blower, including a scroll casing, a fan impeller, a motor, and a pressure measuring connector. The scroll casing includes a chamber, an air inlet, and an air outlet. The air inlet and the air outlet communicate with the chamber. The motor is disposed on the scroll casing. A drive end of the motor is inserted into the chamber and is connected to the fan impeller. The pressure measuring connector is disposed on the scroll casing. A channel is disposed in the pressure measuring connection, and the channel communicates with the chamber. The channel includes a first subchannel and a second subchannel. The first subchannel communicates with the second subchannel, and an inner diameter of the first subchannel is larger than an inner diameter of the second subchannel.

Abstract: An external rotor motor, including a rotary shaft, a plastic-packaged stator, and an external rotor. The plastic-packaged stator includes a sleeve base, a stator core, a terminal insulator, coil windings, and a plastic-packaged body. The plastic-packaged stator is disposed in the chamber of the external rotor. The terminal insulator is disposed on the end surface of the stator core. The coil windings are coiled on the terminal insulator. The sleeve base is disposed in an axle hole of the stator core. The plastic-packaged body integrates the sleeve base, the stator core, the terminal insulator, and the coil windings. A plastic-packaged end plate is disposed on the plastic-packaged body on one side of the stator core. Bearing housings are disposed on two ends of the sleeve base. The rotary shaft is disposed in the sleeve base, and two ends of the rotary shaft are supported by bearings.

Abstract: An external rotor motor, including a rotary shaft, a plastic-packaged stator, and an external rotor. The plastic-packaged stator includes a sleeve base, a stator core, a terminal insulator, coil windings, and a plastic-packaged body. The plastic-packaged stator is disposed in the chamber of the external rotor. The terminal insulator is disposed on the end surface of the stator core. The coil windings are coiled on the terminal insulator. The sleeve base is disposed in an axle hole of the stator core. The plastic-packaged body integrates the sleeve base, the stator core, the terminal insulator, and the coil windings. A plastic-packaged end plate is disposed on the plastic-packaged body on one side of the stator core. Bearing housings are disposed on two ends of the sleeve base. The rotary shaft is disposed in the sleeve base, and two ends of the rotary shaft are supported by bearings.

Abstract: A blower, including a scroll casing, a fan impeller, a motor, and a pressure measuring connector. The scroll casing includes a chamber, an air inlet, and an air outlet. The air inlet and the air outlet communicate with the chamber. The motor is disposed on the scroll casing. A drive end of the motor is inserted into the chamber and is connected to the fan impeller. The pressure measuring connector is disposed on the scroll casing. A channel is disposed in the pressure measuring connection, and the channel communicates with the chamber. The channel includes a first subchannel and a second subchannel. The first subchannel communicates with the second subchannel, and an inner diameter of the first subchannel is larger than an inner diameter of the second subchannel.

Abstract: A lead sheath assembly, including a lead sheath; a plurality of external wires; a jumper box; and a connecting terminal. The lead sheath includes a cavity. The jumper box includes: a plurality of through holes, a front end including a front interface, and a rear end including a rear interface. The external wires are mounted on the lead sheath. The jumper box is disposed in the cavity. The connecting terminal is disposed in the through hole.

Abstract: A lead sheath assembly, including a lead sheath; a plurality of external wires; a jumper box; and a connecting terminal The lead sheath includes a cavity. The jumper box includes: a plurality of through holes, a front end including a front interface, and a rear end including a rear interface. The external wires are mounted on the lead sheath. The jumper box is disposed in the cavity. The connecting terminal is disposed in the through hole.