Automatic cleaning device
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Solution Overview
Problem
Existing cleaning robots face challenges due to the large size and complex structure of position determination devices, such as laser distance sensors, which occupy significant assembly space and limit flexibility in application.
Innovation Solution
The automatic cleaning device incorporates a miniaturized position determination element with a rotor and motor assembly bracket, featuring arc-shaped side walls that allow for a compact design, enabling the device to be assembled in a standard-sized assembly space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional position determination device (laser distance sensor, camera, etc.) is used, then the detection function is reliable, but the device occupies large assembly space and has complex structure
Solution Approach 1:
The motor is nested within the rotor accommodation portion, with the output shaft extending through the center. The rotor is positioned within the same accommodation portion, creating a compact nested arrangement where multiple components occupy overlapping spatial volumes, thereby reducing the overall assembly space required.
Solution Approach 2:
The patent transitions from a planar arrangement to a three-dimensional spatial configuration by utilizing vertical stacking and radial positioning. The arc-shaped side walls create a curved spatial layout that efficiently packs components in multiple dimensions, reducing the footprint area occupied by the device.
2Reliability
If a traditional position determination device is used, then the detection function is reliable, but the structure is complex and flexibility in application is limited
Solution Approach 1:
The motor and rotor are combined within a single rotor accommodation portion of the assembly bracket, rather than being separate modules. The motor's output shaft directly connects to the rotor through the power transmission structure, merging the drive system and detection element into an integrated unit, thereby simplifying the overall structure.
Solution Approach 2:
The assembly bracket serves multiple functions: it provides structural support, accommodates both the motor and rotor, positions the rotating shaft at the geometric center, and enables flexible installation on the mobile platform. This multi-functional design reduces the need for additional separate components.
3Volume of moving object
If the position determination device is made compact, then the assembly space is reduced, but the stability and efficiency may be compromised
Solution Approach 1:
The first and second arc-shaped side walls have different areas, creating an asymmetric configuration within the rotor accommodation portion. This asymmetric design allows optimized positioning of the motor and rotor at different radial distances from the center, enabling compact packaging while maintaining proper clearance and mechanical stability for reliable operation.
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
This solution allows for flexible application of the position determination device by enabling it to be assembled in a smaller space, improving the stability and efficiency of the device while reducing energy loss and raw material costs.
Implementation Method 1
an output shaft of the motor is substantially disposed on a connecting line between a geometric center of the motor accommodation portion and the geometric center of the rotor accommodation portion, and the motor is configured to connect to the rotor through a power transmission structure to provide a driving force for the rotor
Implementation Method 2
a rotating shaft of the rotor is substantially disposed in a geometric center of the rotor accommodation portion, and is configured to transmit and/or receive a detection signal or probing signal during continuous rotation
Data Source
AI summary
An automatic cleaning device, including an assembly structure configured to assemble a position determination device on a mobile platform T the assembly structure includes an assembly bracket including: a rotor accommodation portion that includes a first arc-shaped side wall; and a motor accommodation portion that includes a second arc-shaped side wall. The position determination device includes a position determination element including: a rotor, a rotating shaft of the rotor being substantially disposed in a geometric center of the rotor accommodation portion; and a motor, an output shaft of the motor being substantially disposed on a connecting line between a geometric center of the motor accommodation portion and the geometric center of the rotor accommodation portion.