An exhaust motor of vacuum device comprises an electric motor comprising a motor casing and a drive shaft, and an air bucket connected to the electric motor. The air bucket defines an air inlet side and an air outlet side, at least one rotating fan driven by the drive shaft to generate a high-pressure airflow flowing from the air inlet side to the air outlet side is provided in the air bucket. The air bucket is provided with a diversion end plate forming a plurality of diversion passages, each of the diversion passages comprises an inlet and an outlet, and the inlet is located on an original output path of the high-pressure airflow. The diversion passages divert the high-pressure airflow to flow toward the motor casing, and turn the high-pressure airflow into a heat-dissipating airflow capable of exchanging heat with the motor casing.

Central vacuum cleaning system comprising a vacuum source including: a motor within a motor housing and a motor control circuit connected to the motor; a handle to be held by an operator, a flexible hose for connecting the handle to a conduit system that is connected to the vacuum source; a user input interface at an input location on the handle for controlling an operation of the motor through the motor control circuit; and a communications system to transfer control signals from the user input interface to the motor control circuit wherein the communications system comprises an RF wireless transceiver in the handle, and an RF wireless transceiver at the motor control circuit.

A cleaner performing autonomous traveling includes a main body, a driving unit moving the main body, a battery supplying power to the driving unit, a communication unit performing communication with a charging station to charge the battery, a sensor sensing a signal emitted from the charging station, and a controller controlling the driving unit such that the main body is docked to the charging station on the basis of the signal sensed by the sensor, wherein when the main body starts to move to dock to the charging station, the controller determines a kind of the signal sensed by the sensor and controls the driving unit such that the main body moves along a traveling path corresponding to a circle centered on a predetermined point on the basis of the determined kind of the signal.

A control apparatus for an auto clean machine comprising a light source configured to emit light to illuminate at least one light region outside and in front of the auto clean machine. The control apparatus comprises: a first image sensing area, configured to sense a first brightness distribution of the light region, wherein a resolution for a first direction of the first image sensing area is higher than a resolution for a second direction of the first image sensing area; and a processor, configured to control movement of the auto clean machine according the first brightness distribution.

A robotic vacuum cleaner may include a housing, a displaceable bumper, an emitter/detector pair, and at least one divider. The displaceable bumper may be moveably coupled to the housing and may be configured to be displaced along at least one axis. The emitter/detector pair may have an emitter and a detector, wherein the emitter is configured to emit light through at least a portion of the displaceable bumper. The at least one divider may be disposed between the emitter and the detector of the emitter/detector pair.

The disclosure relates to a cleaning robot, controlling method thereof, and cleaning robot charging system, and more particularly, to a technology for a cleaning robot to select a charging device by taking into account whether the charging device is occupied and a distance to the charging device when the charging device is returning to the charging device for charging. The cleaning robot includes a main body; a movement module moving the main body; a communication module configured to request identification information of a charging device occupied by another cleaning robot to the other cleaning robot; and a controller configured to determine a charging device not occupied by the other cleaning robot based on the identification information of the charging device received from the other cleaning robot through the communication module, and to control the movement module to move the main body to the non-occupied charging device.

An auto clean machine, comprising: a light source configured to emit light to illuminate at least one light region outside and in front of the auto clean machine; a first image sensing area, configured to sense a first brightness distribution of the light region; a second image sensing area below the first image sensing area, configured to sense a second brightness distribution of the light region; and a processor, configured to control movement of the auto clean machine according the first brightness distribution and the second brightness distribution. The processor generates a wall detection result based on the first brightness distribution of the light region, generates a cliff detection result based on the second brightness distribution of the light region, and controls the movement of the auto clean machine according to the wall detection result and the cliff detection result.

The present invention is directed to a blowervac device having a grill that requires to distinct steps in securing the grill over a fan to activate a safety switch allowing power to the motor. The grill has an outer ring and a rotatable inner cover. The first step is simply to secure the grill over the fan. The second step requires the cover to be rotated, which activates an actuator for the safety switch, allowing power to be delivered to the motor and operation of the device. This two-step process reduces the likelihood if inadvertent operation of the device and reduces the chances of injury.

A cleaner comprises a housing having a dust collection chamber formed in the housing and configured to open and close, a main body movable relative to the housing between a first position whereby the main body closes the dust collection chamber and a second position whereby the main body opens the dust collection chamber, and a motor filter mountable to and demountable from the main body, wherein the main body includes a fan motor unit to generate a suction force, and a shutter device mountable into the main body and configured to open and close a flow path between the motor filter and the fan motor unit.

Some embodiments include a robot, including: a plurality of sensors; at least one encoder; a processor; a tangible, non-transitory, machine readable medium storing instructions that when executed by the processor effectuates operations including: measuring, with the at least one encoder, wheel rotation of at least one wheel; capturing, with an image sensor, images of an environment as the robot moves within the environment; identifying, with the processor, at least one characteristic of at least one object captured in the images of the environment; determining, with the processor, an object type of the at least one object based on characteristics of different types of objects stored in an object database; and instructing, with the processor, the robot to execute at least one action based on at least one of: the object type of the at least one object and the measured wheel rotation of the at least one wheel.