Distance measuring device and sweeping robot
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Solution Overview
Problem
Sweeping robots equipped with distance measuring devices, such as LiDAR, often experience operational failures due to foreign matters like hair and dust being wound around the drive assembly's wheels and belt, leading to belt lockage and preventing normal operation.
Innovation Solution
The proposed distance measuring device incorporates a baffle and a side wall that collaboratively define a mounting chamber, which encloses the drive assembly and prevents foreign matters from entering and causing lockage. The baffle is designed to cover part of the base plate and is fixedly connected to the base, ensuring that foreign objects are blocked from intruding into the drive assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the drive assembly is exposed without enclosure, then the structure is simple and easy to manufacture, but foreign matters like hair and dust can enter and cause belt lockage
Solution Approach 1:
The drive assembly is enclosed within a dedicated mounting chamber formed by the base plate and baffle, separating it from the external environment. This segmentation protects the drive assembly from foreign matters while maintaining a relatively simple overall structure.
Solution Approach 2:
The baffle acts as an intermediary component between the external environment and the drive assembly. It blocks foreign matters from reaching the drive assembly while allowing the drive assembly to function normally within the protected mounting chamber.
2Reliability
If a baffle and side wall are added to enclose the drive assembly, then foreign matters are prevented from entering, but the device complexity increases
Solution Approach 1:
The baffle is integrated with the base plate to form the mounting chamber, combining multiple protective functions into a unified structure. This reduces the number of separate components while maintaining effective protection against foreign matters.
Solution Approach 2:
The base plate serves multiple functions: it provides structural support for the sweeping robot and simultaneously forms the mounting chamber for the drive assembly when combined with the baffle. This multi-functionality reduces the need for additional protective structures.
Data Source
AI summary
The present disclosure provides a distance measuring device and a sweeping robot. The distance measuring device includes a base, a baffle, a drive assembly, a ranging component, and a driving component. The baffle is arranged over the base, and may prevent foreign matters over the baffle from intruding into the drive assembly. The baffle may be a portion extended upwards from the base, or may be arranged over the base in a mounting manner. The drive assembly may transmit power of the driving component to the ranging component. The driving component and the ranging component are mounted on the base. The baffle is arranged over the base, and defines a closed or a semi-closed mounting chamber with the base to block foreign matters from intruding into the drive assembly.