Retractable Wireless Charging Windings for Inspection Robots
Limited battery life compromises the usability of inspection and operation robots in hazardous environments such as nuclear sites under decommissioning. Both manually replacing the batteries and installing charging bays may be infeasible. Inductive wireless power transfer is a possible solution to d...
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MDPI AG
2025-06-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/15/12/6530 |
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| author | Mohd Norhakim Bin Hassan Simon Watson Cheng Zhang |
| author_facet | Mohd Norhakim Bin Hassan Simon Watson Cheng Zhang |
| author_sort | Mohd Norhakim Bin Hassan |
| collection | DOAJ |
| description | Limited battery life compromises the usability of inspection and operation robots in hazardous environments such as nuclear sites under decommissioning. Both manually replacing the batteries and installing charging bays may be infeasible. Inductive wireless power transfer is a possible solution to deliver power through barriers such as reinforced concrete walls without physical contact. However, when requiring decent power (e.g., 100 W) to be transmitted over longer distances, the exaggerated dimensions of transmitting and receiving coils restrain the integrations with mobile robots. In this paper, a novel retractable design of the coil used in an inductive wireless power charging system is proposed, proving the minor deformation of the winding shape does not affect the transmission efficiency. A prototype with 5× size compression is implemented and tested. It successfully transmits 116.5 W over a distance of 1 m with 68.72% energy efficiency. The principle can be applied to a wide range of mobile platforms with a limited payload area where remote power is needed. |
| format | Article |
| id | doaj-art-e241a2a3c6b94c75b6123d622c22dee6 |
| institution | Matheson Library |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-e241a2a3c6b94c75b6123d622c22dee62025-06-25T13:25:07ZengMDPI AGApplied Sciences2076-34172025-06-011512653010.3390/app15126530Retractable Wireless Charging Windings for Inspection RobotsMohd Norhakim Bin Hassan0Simon Watson1Cheng Zhang2Department of Electrical and Electronic Engineering, Faculty of Science and Engineering, University of Manchester, Oxford Road, Manchester M13 9PL, UKDepartment of Electrical and Electronic Engineering, Faculty of Science and Engineering, University of Manchester, Oxford Road, Manchester M13 9PL, UKDepartment of Electrical and Electronic Engineering, Faculty of Science and Engineering, University of Manchester, Oxford Road, Manchester M13 9PL, UKLimited battery life compromises the usability of inspection and operation robots in hazardous environments such as nuclear sites under decommissioning. Both manually replacing the batteries and installing charging bays may be infeasible. Inductive wireless power transfer is a possible solution to deliver power through barriers such as reinforced concrete walls without physical contact. However, when requiring decent power (e.g., 100 W) to be transmitted over longer distances, the exaggerated dimensions of transmitting and receiving coils restrain the integrations with mobile robots. In this paper, a novel retractable design of the coil used in an inductive wireless power charging system is proposed, proving the minor deformation of the winding shape does not affect the transmission efficiency. A prototype with 5× size compression is implemented and tested. It successfully transmits 116.5 W over a distance of 1 m with 68.72% energy efficiency. The principle can be applied to a wide range of mobile platforms with a limited payload area where remote power is needed.https://www.mdpi.com/2076-3417/15/12/6530magnetic resonant coupling inductivewireless power transfermid-sized mobile robotsmechatronics |
| spellingShingle | Mohd Norhakim Bin Hassan Simon Watson Cheng Zhang Retractable Wireless Charging Windings for Inspection Robots Applied Sciences magnetic resonant coupling inductive wireless power transfer mid-sized mobile robots mechatronics |
| title | Retractable Wireless Charging Windings for Inspection Robots |
| title_full | Retractable Wireless Charging Windings for Inspection Robots |
| title_fullStr | Retractable Wireless Charging Windings for Inspection Robots |
| title_full_unstemmed | Retractable Wireless Charging Windings for Inspection Robots |
| title_short | Retractable Wireless Charging Windings for Inspection Robots |
| title_sort | retractable wireless charging windings for inspection robots |
| topic | magnetic resonant coupling inductive wireless power transfer mid-sized mobile robots mechatronics |
| url | https://www.mdpi.com/2076-3417/15/12/6530 |
| work_keys_str_mv | AT mohdnorhakimbinhassan retractablewirelesschargingwindingsforinspectionrobots AT simonwatson retractablewirelesschargingwindingsforinspectionrobots AT chengzhang retractablewirelesschargingwindingsforinspectionrobots |