EN
English
中文简体
Español
Robotic Vacuum Cleaners: An Analysis of End-to-End Material Technology Solutions
1. Core Vision and Sensor Systems (Navigation & Sensing)
| Component Name | Recommended materials | Key Technical Parameters | Key Benefits and Solutions to Pain Points |
| LiDAR (LDS) Turret/Housing | PBT + 30% GF | Coefficient of Linear Thermal Expansion (CLTE): <3.0 | Zero drift, guaranteed accuracy: The high-speed rotation of the radar generates heat, and ordinary plastics are prone to deformation, leading to mapping inaccuracies. PBT+GF has an extremely low coefficient of linear expansion and excellent dimensional stability, ensuring scanning accuracy. |
| Modulus of Flexural Rigidity: 9000–10000 MPa | |||
| Bumper | PC/ABS or impact-modified ABS | Cantilever Beam Impact Strength: 450–550 J/m | Impact-Resistant, High Tensile Strength: Robots frequently collide with obstacles during cleaning. The PC/ABS alloy offers exceptional energy absorption, preventing the casing from shattering and protecting the internal precision sensors. |
| Heat Distortion Temperature: 95–105 °C |
2. Aesthetics and Housing Components (Aesthetics & Housing)
| Component Name | Recommended materials | Key Technical Parameters | Key Benefits and Solutions |
| Top Cover | High-gloss ABS / PC/ABS | Rockwell Hardness: R-110+ | Mirror Finish, Scratch-Resistant: Provides a piano-lacquer-like visual effect (high gloss). Surface hardness is enhanced through modification to prevent visible scratches when navigating beneath furniture. |
| Surface Gloss: 90%+ | |||
| Transparent Dust Bin / Water Tank | High-transparency PC / Polycarbonate | Light Transmittance: 88%–90% | Transparent, intuitive and chemical-resistant: Users need to monitor the water level at all times. PC material is not only as transparent as glass but is also impact-resistant and resistant to cleaning agents; it will not become brittle or cloudy due to prolonged contact with cleaning solutions. |
| Water Absorption: <0.2% |
3. Motion & Power System
| Component Name | Recommended Materials | Key Technical Parameters | Key Benefits and Solutions |
| Gearbox / Transmission Parts | POM (Acetal) / Modified PA66 | Coefficient of Friction: 0.15–0.20 | Self-lubricating, ultra-quiet: Frequent gear meshing can cause noise and wear. POM possesses natural lubricity and extremely high mechanical fatigue strength, enabling lubricant-free operation and significantly reducing operating noise levels. |
| Creep Resistance: Excellent | |||
| Drive Wheel Tyres | TPU / TPE (Elastomers) | Shore Hardness: 80A–85A | Strong grip, silent operation: The soft rubber material provides strong friction on slippery surfaces (such as tiles), whilst its soft texture prevents scratches or operational noise on valuable wooden floors. |
| Abrasion loss: <30 mm³ |
4. Cleaning & Filtration System
| Component Name | Recommended Materials | Key Technical Parameters | Key Advantages and Application Logic |
| Side Brush / Main Brush Bristles | PA612 / Modified PA66 | Recovery rate: >95% | Long-lasting resilience, no shedding: The bristles bend continuously during high-speed rotation. The high resilience of PA612 ensures they remain upright and do not collapse even after prolonged use, maintaining sweeping coverage. |
| Water absorption: Extremely low | |||
| HEPA Filter Frame | PP (Polypropylene) | Flexural strength: 35–45 MPa | Lightweight, corrosion-resistant: PP is one of the plastics with the lowest density, effectively reducing the overall weight of the unit. It also exhibits excellent chemical inertness against grease and moisture commonly found in kitchen environments. |
| Processing shrinkage: 1.2%–1.6% |
Marketing Recommendations:
1. Highlight ‘Quiet Operation’:
When promoting POM or TPE materials, emphasise their contribution to reducing noise levels.
2. Emphasise “Safety & Certifications”:
As the machine contains a lithium battery, the material used for the battery compartment must be certified as UL94 V-0 flame-retardant. It must also comply with RoHS and REACH environmental standards.
3. Material Upgrade Trends (PCR):
Use PCR-ABS (post-consumer recycled plastic). “Eco-friendly & Recyclable”
