Wireless Charging Pad Protrusion Guide Alignment
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Solution Overview
Problem
Wireless charging pads face inefficiencies due to misalignment of receiving devices, leading to increased complexity and cost as they need to accommodate various device models and types, requiring larger charging areas and more components.
Innovation Solution
Incorporating protrusions on the charging pad surface to guide wireless power receiving devices for precise alignment with the active area, reducing the need for extensive active areas and minimizing component count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the charging pad is designed with a larger charging area to accommodate misplacement of receiving devices, then the tolerance for misalignment is improved, but the cost of producing the charging pad increases due to additional components and complexity
Solution Approach 1:
A guide structure is introduced as an intermediary element between the charging pad surface and the receiving device. This guide structure passively guides the receiving device into proper alignment with the active area, eliminating the need to expand the charging area while maintaining high tolerance for user placement errors
Solution Approach 2:
The guide structure is pre-configured on the charging pad surface to automatically guide the receiving device into the correct position before power transfer begins. This preliminary guiding action ensures proper alignment is achieved through the physical structure rather than requiring a larger active area
2Adaptability or versatility
If the charging pad is designed to accommodate a variety of receiving device models and types, then the adaptability is improved, but the charging area and transmitter complexity increase
Solution Approach 1:
The guide structure is designed with universal characteristics that can accommodate multiple receiving device models and types. By providing a standardized guiding mechanism that works with various device form factors, the system achieves adaptability without requiring different transmitters or increasing charging area for each device type
3Ease of operation
If multiple inductive coils are used to generate a larger charging area, then the tolerance for misplacement is improved, but the production cost increases
Solution Approach 1:
The alignment function is extracted from the electromagnetic coil system and implemented through a separate mechanical guide structure. This allows a single coil to be used for power transfer while the guide structure handles the alignment tolerance function, reducing the number of coils needed and thereby lowering production costs
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
This solution enhances alignment efficiency, reduces production costs by allowing for fewer and smaller electromagnetic coils, and ensures effective power transfer across multiple orientations and device types.
Implementation Method 1
An electromagnetic field produced by the electromagnetic emitting portion may define an active area
Implementation Method 2
Wireless charging, such as inductive charging or magnetic resonance charging, uses an electromagnetic field to transfer energy between two objects
Data Source
AI summary
A wireless charging device includes a wireless transmitter with an electromagnetic emitting portion. The wireless charging device also includes a seat having a surface and at least one protrusion from the surface. The seat accommodates at least one wireless power receiving device. The seat has an active area that contains the electromagnetic emitting portion. The at least one protrusion is configured as a guide for two sides of the at least one wireless power receiving device for placement over the active area. The placement of the at least one wireless power receiving device over the active area enables transferring of power to the at least one wireless power receiving device.