Cleaner Nozzle Layout for Wet Mopping Without Suction Path Water Ingress
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Solution Overview
Problem
Existing vacuum cleaners face issues with water flowing into the suction path, interfering with the rotation motor and complicating the suction path design, and lack a structure for supplying water to the mop, making them less effective and inconvenient to use, especially in narrow spaces.
Innovation Solution
A nozzle design for vacuum cleaners that includes a water tank, separate rotation cleaning units driven by individual motors, and a water discharge port positioned to prevent water from flowing into the suction path, allowing for independent rotation of the mops and efficient water supply to the cleaning units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the rotation motor is positioned at the central portion, then both rotors can be driven by one motor, but the suction path cannot be formed in the central portion and the height of the suction port main body increases
Solution Approach 1:
The patent redistributes components along the longitudinal axis of the suction port main body rather than concentrating them at the center. The rotation motor is positioned at the rear, the suction path extends through the middle, and the driving motor is positioned at the front. This spatial arrangement reduces the height requirement while maintaining all necessary functions.
2Device complexity
If the suction port main body height is increased, then motors can be positioned centrally, but the cleaner cannot easily enter narrow spaces and the cleanable area is reduced
Solution Approach 1:
By segmenting the motor arrangements and positioning them at the front and rear of the suction port main body, the patent reduces the overall height of the device. This allows the cleaner to easily enter narrow spaces under furniture and improves maneuverability in tight areas while maintaining all necessary driving and suction functions.
3Device complexity
If there is no structure for supplying water to the mop, then device complexity is reduced, but the user has to directly supply water to the mop which is inconvenient
Solution Approach 1:
The patent incorporates a water tank and water discharge port that automatically supply water to the mop during cleaning operations. The driving motor rotates the rotation plate, which in turn rotates the mop, allowing water to be evenly distributed on the floor surface without requiring direct user intervention, thus improving convenience while adding minimal structural complexity.
Data Source
AI summary
A nozzle for a cleaner has a nozzle housing including a suction flow path configured to allow air and dust to flow therethrough. A water tank is mounted on the nozzle housing to store water. The nozzle also has first and second rotation cleaning units arranged on a lower side of the nozzle housing. Each of the first and second rotation cleaning units include a rotation plate coupled to a mop. The nozzle includes a first driving device that has a first driving motor to drive the first rotation cleaning unit. The nozzle also includes a second driving device that has a second driving motor to drive the second rotation cleaning unit. Further, the nozzle has a water discharge port provided at a bottom of the nozzle housing to supply water in the water tank to each of the first and second rotation cleaning units.