Safety enclosure for wireless power transmission system
The wireless power transmission system addresses the safety concern of damaged transmitter enclosures by using a detector to monitor the enclosure's window integrity and adjust the laser power accordingly, ensuring safe operation even when the enclosure is compromised.
JP2025060727AInactive Publication Date: 2025-04-10WI CHARGE
Patent Information
- Application Number
- JP2024221693
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2019-01-17
- Filing Date
- 2024-12-18
- Publication Date
- 2025-04-10
- Estimated Expiration
- Not applicable · inactive patent
Smart Images
Figure 2025060727000001_ABST
Abstract
To provide, as a laser-based transmission system, a wireless transmission system that ensures that unsafe beam exposure is avoided even if enclosure of a wireless power transmitter is damaged.SOLUTION: A transmitter enclosure includes a window 802 that allows a high power beam 800a to exit the transmitter. The window includes a window area 802a that reflects at least a portion of the beam and directs the reflected beam to a beam arrival detector 803 to determine if the window is unbroken. If the detector receives a sufficient portion of the beam, it indicates an unbroken window, which advantageously prevents dangerous beam-generating damage that occurs if an exit window of the transmitter is damaged. The laser beam is preferably circularly polarized by a quarter wave plate 806 before exiting the transmitter to prevent dangerous laser damage caused by reflection of the maximum of P or S polarization components that can occur with a linearly polarized beam.SELECTED DRAWING: Figure 8A-8B
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Citation Information
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