Solar Cell Converting Circuit Integration in Mobile Display

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Solution Overview

Problem

Existing mobile electronic apparatuses using solar cells as power sources face inefficiencies due to temperature differences between solar cells and converting circuits, power loss through long cables, and susceptibility to external damage and noise, which affect the stability and efficiency of electric power supply.

Innovation Solution

The mobile electronic apparatus integrates a converting circuit within the display unit close to the solar cell module, using a fixing bracket for thermal management and a protection cover to secure and protect the solar cells, while transmitting stable power through a display cable to minimize power loss and electromagnetic interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the converting circuit is disposed on the main board separate from the solar cells, then the device structure is simplified and easier to manufacture, but temperature difference between solar cells and converting circuit is generated reducing efficiency

Engineering Contradiction:

Improveease of manufactureVSAvoidpower generation efficiency

Core Design Contradiction:

Ease of manufactureVSProductivity

Solution Approach 1:

The patent combines the converting circuit and solar cells into the same display unit, merging previously separate components. This reduces temperature difference between components while maintaining manufacturing feasibility through integrated design of the display unit housing.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent segments the display unit into distinct functional regions: one area for solar cells and another for the converting circuit, both within the same display unit. This segmentation allows thermal management while maintaining integration benefits.

Inventive Principle:

Principle #1Segmentation

2Use of energy by moving object

If solar cells are disposed on the outer surface of the mobile electronic apparatus, then they can receive sunlight effectively, but they become susceptible to external impact and environmental contaminants

Engineering Contradiction:

Improvepower generation efficiencyVSAvoidexternal damage and contamination

Core Design Contradiction:

Use of energy by moving objectVSObject-affected harmful factors

Solution Approach 1:

The patent nests the solar cells within the display unit housing, placing them in an inner cavity rather than on the outer surface. The display unit housing acts as a protective enclosure, shielding solar cells from external impacts and contaminants while allowing light transmission through the display screen.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The display unit housing serves as an intermediary structure between the external environment and the solar cells. It provides mechanical protection and environmental shielding while allowing optical energy to reach the solar cells through the display screen.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Ease of operation

If a long cable is used to transmit power from solar cells to the main board, then the components can be positioned for optimal function, but power loss and electromagnetic noise increase

Engineering Contradiction:

Improvefunctional optimizationVSAvoidpower loss

Core Design Contradiction:

Ease of operationVSLoss of energy

Solution Approach 1:

By merging the converting circuit with the solar cells in the same display unit, the patent dramatically shortens the power transmission path. The cable length is reduced from spanning the entire device to being contained within the display unit, minimizing power loss and electromagnetic interference.

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 reduces power loss, enhances solar cell efficiency, and protects the solar cells from external damage, providing a stable and efficient electric power supply with reduced electromagnetic interference.

Implementation Method 1

a solar cell module disposed on a rear surface of the display unit for generating electric power by converting solar energy into electric power

Methodology Applied

Scientific EffectPhotovoltaic effect: Photovoltaic Effect

Implementation Method 2

disposing a fixing bracket between the display unit and the solar cells so as to secure the solar cells and to effectively release heat generated by the solar cells

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS9354682B2Mobile electric apparatus having solar cells

Publication Date: 2016.05.31 SAMSUNG ELECTRONICS CO LTD

AI summary

A mobile electronic apparatus includes a main body unit having a main board, a display unit disposed so as to rotate with respect to the main body unit for operating according to a control of the main board, a solar cell module disposed on a rear surface of the display unit for generating electric power by converting solar energy into electric power, and a converting circuit disposed inside the display unit for stabilizing electric power generated by the solar cell module so as to supply stable electric power.