Self-propelled cleaning device

A self-propelled cleaning device, comprising:

• a chassis, including a side brush mechanism for executing a cleaning function, a driving wheel set for carrying and moving the chassis, a dust collecting case for collecting dust, a negative pressure device having a vent for discharging air to provide a negative pressure suction, and a control unit for executing a system control;
• wherein, the driving wheel set uses a motor to drive a wheel by a gear set installed in a housing;
• and an elastic element is installed between the housing of the driving wheel set and a surface of an inner side of the upper casing of the chassis, and the driving wheel set uses a pivot as the center of rotation, and the elastic element provides an elastic driving force to maintain the contact of the wheel with the ground and provides buffer and shock absorbing effects when a vibration is produced.

A self-propelled cleaning device, comprising:

• a chassis, including a side brush mechanism for executing a cleaning function, a driving wheel set for carrying and moving the chassis, a dust collecting case for collecting dust, a negative pressure device having a vent for discharging air to provide a negative pressure suction, and a control unit for executing a system control;
• wherein, an upper casing of the chassis has an inwardly and concavely formed containing groove with an opening for accommodating the dust collecting case, and the containing groove has a first spacer apart from the control unit and a second spacer for separating the containing groove from a carrying space of the negative pressure device, and an inclined edge is formed at a position near the top of the second spacer and has a hollow passage for interconnecting the containing groove and the carrying space with each other, and the lower casing disposed at the bottom of the containing groove has a hollow hole.

A self-propelled cleaning device, comprising:

• a chassis, including a side brush mechanism for executing a cleaning function, a driving wheel set for carrying and moving the chassis, a dust collecting case for collecting dust, a negative pressure device having a vent for discharging air to provide a negative pressure suction, and a control unit for executing a system control;
• wherein the dust collecting case includes a container, a first side and a second side disposed on both sides of the bottom inside the container dust collecting space respectively and separated with an appropriate interval apart from each other, and the bottom has a dust inlet, and an inclined surface is disposed at a position near the top of the first side, so that an accommodating space is concavely formed on the first side and at the position, and the accommodating space has a negative pressure outlet.

A self-propelled cleaning device, comprising:

• a chassis, including a side brush mechanism for executing a cleaning function, a driving wheel set for carrying and moving the chassis, a dust collecting case for collecting dust, a negative pressure device having a vent for discharging air to provide a negative pressure suction, and a control unit for executing a system control;
• wherein, the chassis has a containing groove for accommodating the dust collecting case, and the dust collecting case includes a container, and a first side and a second side disposed on both sides of the bottom inside the bottom of the container dust collecting space and separated with an appropriate interval apart from each other, and the bottom has a dust inlet, and the first side has a negative pressure outlet, and the containing groove of the chassis has a first spacer apart from the control unit and a second spacer apart from a carrying space of the negative pressure device, and the second spacer has a hollow passage for interconnecting the containing groove and the carrying space with each other, and the negative pressure device has a negative pressure guide channel with a negative pressure inlet aligned with the hollow passage on the second spacer of the chassis containing groove and the negative pressure outlet of the dust collecting case to allow air to flow through.

A self-propelled cleaning device, comprising:

• a chassis, including a side brush mechanism for executing a cleaning function, a driving wheel set for carrying and moving the chassis, a dust collecting case for collecting dust, a negative pressure device having a vent for discharging air to provide a negative pressure suction, and a control unit for executing a system control;
• wherein, the negative pressure device includes a fan driven by a motor, a shaft cover driven by the motor to rotate the fan, and an outer frame coaxial with the shaft cover and connected to the bottom edge with an appropriate interval apart from each other, and an annular airflow passage is formed between the shaft cover and the outer frame, and the outer frame has a plurality of vanes formed around the outer frame, and a negative pressure guide channel with a flat area is formed at the top of the annular airflow passage, and an end of the negative pressure guide channel has a negative pressure inlet, and the motor drives the shaft cover to link and rotate the vanes of the outer frame in order to discharge the air inside the annular airflow passage to the outside through the vent, so that a negative pressure is formed inside the annular airflow passage, and the negative pressure drives the negative pressure guide channel to such air from the negative pressure inlet.

A self-propelled cleaning device, comprising:

• a chassis, including a side brush mechanism for executing a cleaning function, a driving wheel set for carrying and moving the chassis, a dust collecting case for guiding and collecting dust from a dust inlet, a negative pressure device having a vent for discharging air to provide a negative pressure suction, and a control unit for executing a system control;
• wherein, a concave interval with an airflow guiding effect is extended from the front end of the bottom of the chassis to the dust inlet, so that the negative pressure airflow can carry and flow dust easily.