Wireless Charging Device Temperature-Based Signal Adjustment

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional wireless charging devices require a specific communication interface, limiting their ability to charge electronic devices using different modes and increasing manufacturing costs due to the need for additional configuration.

Innovation Solution

A wireless charging device equipped with a wireless signal transmitter, controller, and temperature sensor that adjusts electromagnetic signals based on ambient temperature, allowing for wireless charging without the need for a specific communication interface, using either magnetic resonance or magnetic induction modes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a specific communication interface is configured in the wireless charging device, then communication between the wireless charging device and electronic device can be performed using a specific communication protocol, but the user is unable to perform charging operations with different charging modes and the manufacturing cost increases

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidcharging mode compatibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent applies universality by enabling the wireless charging device to support multiple charging modes (magnetic induction and magnetic resonance) through a single unified communication interface. The device can dynamically switch between different communication protocols (Bluetooth, Wi-Fi, NFC) and charging modes based on the electronic device being charged, eliminating the need for separate dedicated interfaces for each charging mode while maintaining reliable communication across all modes

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If a specific communication interface is configured in the wireless charging device, then communication between the wireless charging device and electronic device can be performed using a specific communication protocol, but the manufacturing cost increases due to additional configuration requirements

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent reduces manufacturing cost by implementing a universal communication interface that can handle multiple protocols (Bluetooth, Wi-Fi, NFC) rather than requiring separate dedicated hardware interfaces for each charging mode. This multi-functional approach consolidates the communication infrastructure, reducing component count, assembly complexity, and overall manufacturing cost while maintaining reliable communication across all charging modes

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent employs parameter changes by dynamically switching between different communication protocols and charging modes based on the detected electronic device type. The system can change communication parameters (protocol selection, frequency, power level) in real-time to match the requirements of the connected device, eliminating the need for multiple fixed-configuration interfaces and thereby reducing manufacturing cost

Inventive Principle:
Principle #35Parameter changes

3Productivity

If the wireless charging device transmits electromagnetic signals continuously, then charging efficiency is maintained, but temperature increases beyond safe operating limits

Engineering Contradiction:
Improvecharging efficiencyVSAvoidoperating temperature
Core Design Contradiction:
ProductivityVSTemperature

Solution Approach 1:

The patent implements periodic action by continuously monitoring temperature during wireless charging operations and dynamically adjusting the electromagnetic signal transmission accordingly. When temperature approaches safe operating limits, the system periodically reduces or pauses signal transmission to allow cooling, then resumes when temperature is safe. This periodic modulation maintains charging efficiency over time while preventing dangerous temperature accumulation

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent employs feedback mechanisms where temperature sensors continuously monitor the operating temperature and feed this information back to the control system. The control system then adjusts the electromagnetic signal transmission power and duration based on the temperature feedback, creating a closed-loop control system that maintains charging efficiency while ensuring temperature remains within safe operating limits

Inventive Principle:
Principle #23Feedback

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

Enables convenient wireless charging of various electronic devices without additional configuration, reducing product costs and increasing versatility by dynamically adjusting signal frequency or position based on temperature sensing values.

Implementation Method 1

a temperature sensor...configured to detect an ambient temperature to obtain a temperature sensing value

Methodology Applied
Scientific EffectTemperature sensing: Thermistor

Implementation Method 2

a wireless signal transmitter...configured to transmit an electromagnetic signal

Methodology Applied
Scientific EffectElectromagnetic radiation: Electromagnetic Induction

Implementation Method 3

The controller controls the wireless signal transmitter to adjust a frequency or a transmitting position of the electromagnetic signal according to the changing state of the temperature sensing value

Methodology Applied
Scientific EffectFrequency modulation:

Implementation Method 4

The controller controls the wireless signal transmitter to adjust a frequency or a transmitting position of the electromagnetic signal according to the changing state of the temperature sensing value

Methodology Applied
Scientific EffectPosition adjustment:

Data Source

PatentUS10164460B2Wireless charging device, wireless charging case and method of wireless charging with frequency or position adjustment according to detected temperature
Publication Date: 2018.12.25 WISTRON CORP
  • US10164460B2 patent drawing
  • US10164460B2 patent drawing
  • US10164460B2 patent drawing

AI summary

A wireless charging device, a wireless charging case and a wireless charging method thereof are provided. The wireless charging device includes a wireless signal transmitter, a controller and a temperature sensor. The wireless signal transmitter is configured to transmit an electromagnetic signal. The controller is coupled to the wireless signal transmitter. The temperature sensor is coupled to the controller. The temperature sensor is configured to detect an ambient temperature to obtain a temperature sensing value. The controller controls the wireless signal transmitter to adjust a frequency or a transmitting position of the electromagnetic signal according to the changing state of the temperature sensing value.