Wireless Charging Coil Tray Structure for Vehicle Rollover Protection
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Solution Overview
Problem
Wireless charging devices for electric vehicles are prone to damage when an electric vehicle accidentally rolls over them, necessitating a design that disperses and reduces the concentration of force to protect critical components.
Innovation Solution
A wireless charging device with a first and second cover, a coil carrier tray, and an energy induction tray, where components like the charging coil and foreign object detection components are protected by being disposed between the covers and trays, with protrusions and abutting portions that distribute the force, preventing direct contact and potential damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the wireless charging device uses a simple cover structure, then the device complexity is reduced, but the protection against vehicle rollover damage is insufficient
Solution Approach 1:
The cover structure is divided into multiple segments including a first cover, a second cover, a coil carrier tray, and an energy induction tray. These segmented components can independently deform or move during a vehicle rollover event, distributing the impact forces across multiple elements rather than concentrating them on a single rigid cover, thereby providing better protection while maintaining manageable structural complexity
Solution Approach 2:
The coil carrier tray and energy induction tray are positioned between the first and second covers to create a cushioning layer that absorbs and disperses impact forces before they reach the charging coil and other critical components. This pre-positioned cushioning structure protects sensitive elements from direct impact during accidental vehicle rollovers
2Ease of operation
If the charging coil is exposed for better accessibility, then the ease of operation is improved, but the vulnerability to damage increases
Solution Approach 1:
The charging coil is nested within the coil carrier tray, which itself is positioned between the first and second covers. This nested arrangement allows the charging coil to remain accessible for charging operations while being protected by the surrounding tray structure that absorbs and distributes impact forces during vehicle rollover events
Solution Approach 2:
The coil carrier tray acts as an intermediary structure between the exposed charging coil and the external environment. It provides a protective barrier that reduces direct exposure to harmful impacts while maintaining the functional accessibility of the charging coil for wireless charging operations
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 design effectively disperses the force exerted by an electric vehicle, reducing stress on critical components and preventing damage, ensuring the wireless charging device operates safely and reliably.
Implementation Method 1
a foreign object detection component disposed between the first cover and the second cover
Implementation Method 2
the coil carrier tray is disposed between the first cover and the second cover and includes a protrusion... effectively disperses the force exerted by an electric vehicle, reducing stress on critical components
Data Source
AI summary
A wireless charging device includes a first cover, a second cover, a foreign object detection component and a coil carrier tray. The foreign object detection component is disposed between the first cover and the second cover and has a through hole. The coil carrier tray is disposed between the first cover and the second cover, and includes a protrusion, wherein the protrusion passes through the through hole and abuts against the first cover.