Floor sweeping robot system with automatic dust collection function
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Solution Overview
Problem
Existing floor sweeping robots require manual emptying of dust collection boxes, leading to inefficient cleaning due to frequent stoppages, and have separate water and dust collection systems that increase space, cost, and leakage issues during mopping.
Innovation Solution
A floor sweeping robot system with an integrated water-dust box that automatically collects dust using a negative pressure device and controls water supply for mopping, reducing manual intervention and integrating dust and water functions for space efficiency and cost savings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate water tank and dust collection box are arranged in the cleaning robot, then the robot can perform both sweeping and mopping functions, but the occupied space is large and production cost is high
Solution Approach 1:
The patent combines the water tank and dust collection box into a single integrated water-dust box structure. The water tank is positioned in the upper portion while the dust collection box is located in the lower portion, sharing a common housing and control system. This merging reduces the overall occupied space while maintaining both sweeping and mopping functions through coordinated operation of the integrated components.
2Adaptability or versatility
If separate water tank and dust collection box are arranged in the cleaning robot, then the robot can perform both sweeping and mopping functions, but production cost is high
Solution Approach 1:
The integrated water-dust box design reduces production cost by eliminating the need for separate housings, mounting structures, and control systems for independent water tank and dust collection box. The shared structure requires fewer manufacturing steps, less material, and simpler assembly processes while still enabling both sweeping and mopping functions through the coordinated operation of integrated components.
3Device complexity
If water tank is arranged separately and allows free seeping water for mopping, then the structure is simple, but the water tank leaks water when unmoved and water amount is uncontrollable
Solution Approach 1:
The patent replaces the simple free-seeping water mechanism with a water pump-controlled system. The water pump, driven by a motor, actively pumps water from the water tank through a water outlet to the mopping roller. This mechanical substitution eliminates leakage when the robot is stationary and provides controllable water flow through motor speed regulation, while maintaining structural integration within the water-dust box.
4Productivity
If dust collection box is filled with garbage and user is out, then the cleaning robot stops operating, but manual emptying requires user presence
Solution Approach 1:
The patent implements a self-service dust discharge mechanism where the dust collection box automatically discharges accumulated dust through a discharge port and discharge channel. A discharge control component, actuated by the control board, opens the discharge port to allow dust to exit the dust collection box without user intervention. This self-service capability maintains high cleaning productivity while eliminating the need for manual emptying operations.
5Volume of moving object
If water tank and dust collection box are integrated, then space is saved and manufacturing is simpler, but the system complexity increases
Solution Approach 1:
The integrated water-dust box is segmented into distinct functional zones: the water tank occupies the upper portion with its own inlet, outlet, and pump system, while the dust collection box occupies the lower portion with its own inlet, discharge port, and discharge channel. The control board segments the control logic to independently manage water pump operation and dust discharge timing. This segmentation within integration manages complexity by organizing functions into separate but coordinated subsystems.
6Extent of automation
If dust discharge port is opened for automatic dust discharge, then dust can be removed automatically, but water may leak from the port
Solution Approach 1:
The dust discharge port operates through periodic action rather than remaining continuously open. The control board activates the dust discharge function at specific intervals when the dust collection box reaches a certain fill level, opening the discharge port briefly to expel dust, then closing it. This periodic operation enables automatic dust removal while minimizing the time the port is open, thereby preventing water leakage from the dust collection box through the discharge port.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system enables continuous operation by automatically emptying the dust collection box and controlling water usage, enhancing cleaning efficiency and reducing maintenance, while integrating dust and water functions to save space and lower production costs.
Implementation Method 1
a negative pressure device that is communicated with the dust collection cavity and generates a negative pressure within the dust collection cavity
Implementation Method 2
a water pump, a water suction pipe, a water outlet pipe, a one-way valve and a delivery pipe are arranged in the clean water chamber
Data Source
AI summary
The present application provides a floor sweeping robot system with an automatic dust collection function, which sucks garbage in a water-dust integrated box and automatically treats garbage inside a floor sweeping robot, thereby solving problems for consumers. Accordingly, the frequency of cleaning the machine and recycling garbage is reduced, and the cleaning operation is performed at one time, so that the cleaning efficiency is improved greatly. The integrated design of the water-dust integrated box can greatly save the space, and is lower in production cost and more convenient for a user to clean.