Wireless Power Coil on Non-Parallel Surfaces

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Solution Overview

Problem

Existing wireless power transmission systems face challenges in maintaining efficient power transmission while allowing for flexible arrangement of power receiving and feeding devices, leading to increased complexity, size, and cost due to the need for multiple coils and complex wiring.

Innovation Solution

The implementation of power receiving and feeding devices with coils disposed along multiple non-parallel surfaces, allowing for power transmission through multiple surfaces and enabling flexible arrangement without the need for multiple coils, thereby simplifying wiring and reducing device size.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple transmission-side coils and reception-side coils are provided to enable flexible arrangement, then the degree of freedom in arrangement is improved, but the circuit complexity and device size increase

Engineering Contradiction:

Improvedegree of freedom in arrangementVSAvoidcircuit complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies universality by designing a single coil structure that can function in multiple orientations. The coil is configured to extend along two adjacent surfaces of the housing, allowing it to serve as both a transmission-side coil and a reception-side coil depending on the arrangement. This multi-functional design eliminates the need for separate coils for different orientations, thereby reducing circuit complexity while maintaining arrangement flexibility.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the transmission-side coil and reception-side coil into a single integrated coil structure. By combining these two functions into one coil that can operate in different modes, the patent reduces the total number of coils and associated wiring, thereby simplifying the circuit while enabling flexible arrangement of power transmission equipment.

Inventive Principle:

Principle #5Merging (Combining)

2Adaptability or versatility

If multiple transmission-side coils and reception-side coils are provided to enable flexible arrangement, then the degree of freedom in arrangement is improved, but the device size increases

Engineering Contradiction:

Improvedegree of freedom in arrangementVSAvoiddevice size

Core Design Contradiction:

Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The single coil structure serves multiple functions and orientations, eliminating the need for multiple separate coils. This reduces the overall device volume while maintaining the ability to accommodate flexible arrangements of power transmission equipment.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

By merging multiple coil functions into a single integrated coil that extends along two adjacent surfaces, the patent reduces the total space required for coils and wiring, thereby reducing device size while enabling flexible arrangement.

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If multiple transmission-side coils and reception-side coils are provided to enable flexible arrangement, then the degree of freedom in arrangement is improved, but costs increase

Engineering Contradiction:

Improvedegree of freedom in arrangementVSAvoidmanufacturing cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The single multi-functional coil reduces the number of components that need to be manufactured and assembled, thereby reducing manufacturing costs while maintaining arrangement flexibility.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

By combining multiple coil functions into one, the patent reduces the number of parts, wiring harnesses, and assembly steps required, leading to lower manufacturing costs while enabling flexible device arrangement.

Inventive Principle:

Principle #5Merging (Combining)

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 configuration enhances user convenience and reduces equipment size by allowing for flexible arrangement of power receiving and feeding devices while maintaining efficient power transmission.

Implementation Method 1

power is supplied from the power feeding devices 284, 304 to the power receiving devices 286, 306 by means of electromagnetic induction between the primary coils L1 and the secondary coils L2

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

power is supplied from the power feeding devices 284, 304 to the power receiving devices 286, 306 by means of electromagnetic induction between the primary coils L1 and the secondary coils L2

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS9866058B2Power feeding device, power receiving device, and wireless power transmission device

Publication Date: 2018.01.09 TDK CORP

AI summary

A power receiving device, a power feeding device, and a wireless power transmission device are provided. The power receiving device receives power wirelessly transmitted from the power feeding device and includes one or more power receiving units. At least one of the power receiving units in the power receiving device is disposed along two or more surfaces which form the outer shape of the power receiving device and are not parallel to each other.