A backpack dust collector includes a housing, a slit portion, and a noise-absorbing member. The housing includes a suction port, a dust collecting chamber, a motor chamber, and an exhaust port. The dust collecting chamber is connected to the suction port and configured to accommodate a dust collecting bag. The motor chamber is connected to the dust collecting chamber and accommodates a fan and a motor. Through the exhaust port, air from the motor chamber is discharged. The slit portion is disposed in a flow path between the motor chamber and the exhaust port and includes at least one slit-shaped vent through which air from the motor chamber passes. The noise-absorbing member is disposed in at least part of a flow path between the vent and the exhaust port.

A vacuum cleaner motor device comprises a motor assembly and an expansion assembly. The motor assembly further comprises a rotor, a stator, and a main shaft. The expansion assembly further comprises a first motor support, a second motor support, a fan blade member, a fan blade member support, a PCBA assembly, a first bearing, and a second bearing. The rotor is a neodymium iron boron magnet made of neodymium iron boron, which ensures that the motor has a strong output power such that the rotating speed of the motor reaches more than 100,000 rpm. The outer circumferential diameter of the fan blade member ranges from 35 to 40 mm. Compared with conventional vacuum cleaners, the fan blade member of the present disclosure has a larger size, which ensures a stronger vacuum suction force of the vacuum cleaner and achieves better cleaning effect.

A vacuum cleaner motor device comprises a motor assembly and an expansion assembly. The motor assembly further comprises a rotor, a stator, and a main shaft. The expansion assembly further comprises a first motor support, a second motor support, a fan blade member, a fan blade member support, a PCBA assembly, a first bearing, and a second bearing. The rotor is a neodymium iron boron magnet made of neodymium iron boron, which ensures that the motor has a strong output power such that the rotating speed of the motor reaches more than 100,000 rpm. The outer circumferential diameter of the fan blade member ranges from 35 to 40 mm. Compared with conventional vacuum cleaners, the fan blade member of the present disclosure has a larger size, which ensures a stronger vacuum suction force of the vacuum cleaner and achieves better cleaning effect.

A household appliance has an air flow path extending from an air inlet to an air outlet with a fan and motor assembly in the air flow path. The fan and motor assembly comprises a motor drivingly connected to a rotating fan blade subassembly. The fan and motor assembly is adjustable between a first configuration in which the rotating fan blade subassembly provides a first level of air flow and a first level of suction and a second configuration in which the rotating fan blade subassembly provides a second level of air flow and a second level of suction wherein the first level of air flow is higher than the second level of air flow and the second level of suction is higher than the first level of suction.

A household appliance has an air flow path extending from an air inlet to an air outlet with a fan and motor assembly in the air flow path. The fan and motor assembly comprises a motor drivingly connected to a rotating fan blade subassembly. The fan and motor assembly is adjustable between a first configuration in which the rotating fan blade subassembly provides a first level of air flow and a first level of suction and a second configuration in which the rotating fan blade subassembly provides a second level of air flow and a second level of suction wherein the first level of air flow is higher than the second level of air flow and the second level of suction is higher than the first level of suction.

A surface cleaning apparatus is disclosed having a forward portion and a rearward portion. The forward portion has a dirty air inlet, a front side, a rear side and a forward bridging section, the forward bridging section having a rearwardly extending air flow passage that is downstream from the dirty air inlet. The rearward portion positioned rearward of the forward portion, the rearward portion comprising a front side, a rearward side, a rearward bridging section, a lower planar surface, an upper surface and an up flow duct, the rearward bridging section being spaced rearward of the front side of the rearward portion. The rear side of the forward portion is spaced from and faces the front side of the rearward portion and the forward bridging section is connected to the rearward bridging section.

A surface cleaning apparatus is disclosed having a forward portion and a rearward portion. The forward portion has a dirty air inlet, a front side, a rear side and a forward bridging section, the forward bridging section having a rearwardly extending air flow passage that is downstream from the dirty air inlet. The rearward portion positioned rearward of the forward portion, the rearward portion comprising a front side, a rearward side, a rearward bridging section, a lower planar surface, an upper surface and an up flow duct, the rearward bridging section being spaced rearward of the front side of the rearward portion. The rear side of the forward portion is spaced from and faces the front side of the rearward portion and the forward bridging section is connected to the rearward bridging section.

A cordless wet and dry stick vacuum cleaner system has a portable power module, which includes an airflow generator, a battery, and control circuitry. This may be used with either a wet dirt management system and a wet vacuum nozzle or it may be used with a dry dirt management system and a dry vacuum nozzle. The shared power module enables power savings, whereas the other parts remain optimized for their specific function.

A cordless wet and dry stick vacuum cleaner system has a portable power module, which includes an airflow generator, a battery, and control circuitry. This may be used with either a wet dirt management system and a wet vacuum nozzle or it may be used with a dry dirt management system and a dry vacuum nozzle. The shared power module enables power savings, whereas the other parts remain optimized for their specific function.

According to an embodiment of the present disclosure, provided is a cleaner which comprises: a main body having a cylindrical shape; a cyclone unit which is provided inside the main body so as to separate dust from air suctioned into the main body; an extension duct which communicates with the cyclone part and extends from the main body; a suction nozzle which is coupled to the extension duct and suctions dust; a first battery unit which extends from the main body and supplies electric power so that the cyclone unit can suction air; and a second battery unit which supplies electric power to the cyclone unit and is slidably coupled to the extension duct. According to an embodiment of the present disclosure, the usage time of the cleaner can be increased, and the fatigue that a user feels can be minimized even when the usage time is increased.