Elastic Assembly Collision Detection for Cleaning Robot Bumpers
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Solution Overview
Problem
Existing collision detection systems in sweeping robots are complex and require improvement for efficient obstacle avoidance.
Innovation Solution
A collision detection apparatus with a base, switch, and elastic assembly, where a cover with an abutting part pushes a preset portion of the elastic assembly to trigger the switch upon collision, enhancing sensitivity and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex collision detection structures are used, then collision detection capability is improved, but device complexity increases
Solution Approach 1:
The patent combines the collision detection function with the protective cover structure. The cover serves dual purposes: protecting internal components and detecting collisions through its integrated abutting part that directly contacts the elastic assembly, eliminating the need for separate detection mechanisms
Solution Approach 2:
The cover performs self-detection of collisions. When the cover contacts an obstacle, the abutting part automatically pushes the elastic assembly to trigger the switch, allowing the cover itself to detect and report the collision event without requiring additional sensors or complex detection systems
2Reliability
If mechanical collision triggering is used, then collision detection is achieved, but the collision switch assembly may be damaged
Solution Approach 1:
The elastic assembly acts as a cushioning element between the cover and the switch. When collision occurs, the elastic assembly deforms to absorb impact energy before transmitting the triggering force to the switch, preventing direct mechanical shock that could damage the switch or surrounding components
Solution Approach 2:
The elastic assembly serves as an intermediary between the cover and the switch. It transmits the collision force in a controlled manner, allowing the switch to detect the collision event while protecting it from the full impact force that would occur with direct mechanical contact
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 apparatus provides high collision detection sensitivity and efficiency with a simple structure, allowing timely reporting of collision events.
Implementation Method 1
one end of the elastic assembly is connected with the base, and the other end is connected with the switch; the abutting part is clamped with a preset portion of the elastic assembly; under a state that the cover has a collision and moves in a set direction, the abutting part is forced to push the preset portion, so as to drive the other end of the elastic assembly to trigger the switch
Data Source
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Figure 5
AI summary
The disclosure relates to a collision detection apparatus and a cleaning device. The collision detection apparatus includes: a base (2); a switch, in the base (2); an elastic assembly (4), in the base (2), in which one end of the elastic assembly (4) is connected with the base (2), the other end is connected with the switch; a cover (1), movably connected with the base (2) to move within a set range and has an abutting part (101), the abutting part (101) is clamped with a preset portion of the elastic assembly (4); under a state that the cover (1) has a collision and moves in a set direction, the abutting part (101) is forced to push the preset portion, so as to drive the other end of the elastic assembly (4) to trigger the switch (3), the switch (3) is configured to report a collision event when being triggered.