Integrated Solar Sections for Electronic Watch Power
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Solution Overview
Problem
Existing solar power generating devices for electronic watches require cumbersome and troublesome individual assembly and electrical connection of separate solar sections, which complicates the manufacturing and integration process.
Innovation Solution
A solar power generating device with integrated first and second solar sections, each with solar cells arranged flatwise, and a coupling section that electrically connects them via contact terminals, simplifying assembly and connection by allowing the sections to be coupled and connected at a single point.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple solar sections are individually formed and assembled, then the light-receiving area can be increased, but the assembling operation and connecting operation become cumbersome and troublesome
Solution Approach 1:
The patent merges multiple solar sections into a single integrated solar cell array structure. The solar cells are arranged in multiple sections on one continuous substrate, allowing them to be manufactured as a single unit rather than separate components that require individual assembly. This eliminates the cumbersome assembling operation while maintaining the increased light-receiving area through the multi-section layout.
2Area of stationary object
If multiple solar sections are individually formed and assembled, then the light-receiving area can be increased, but the connecting operation becomes cumbersome and troublesome
Solution Approach 1:
The patent combines the electrical connection function into the integrated structure by providing a single common electrode that contacts all solar cell sections through the substrate. This eliminates the need for separate connecting operations for each solar section, as the electrical interconnection is achieved through the unified substrate design rather than individual wire connections or soldering operations.
3Reliability
If solar sections are separately formed and connected individually, then electrical connection can be established, but the device size increases due to connection space requirements
Solution Approach 1:
The patent transitions from planar connections to three-dimensional vertical connections by having the substrate extend underneath the solar cell sections. The common electrode is positioned on the substrate below the active light-receiving surfaces of all solar sections, allowing electrical connection without requiring lateral connection space. This vertical arrangement minimizes the overall device footprint while maintaining reliable electrical connections.
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 integration minimizes connection space, allows for downsizing of the device, ensures a sufficient light-receiving area, and facilitates easier manufacturing and pattern design, while providing reliable power generation for the electronic watch.
Implementation Method 1
a first solar section which has a plurality of solar cells arranged flatwise; a second solar section which has a plurality of solar cells arranged flatwise
Data Source
AI summary
A solar power generating device of the present invention includes a first solar section which has a plurality of solar cells arranged flatwise, a second solar section which has a plurality of solar cells arranged flatwise and is placed a predetermined space away and below the first solar section so as to be shifted with respect to the first solar section in a surface direction, and a coupling section which couples the first solar section and the second solar section together. In the solar power generating device, the coupling section has a connecting section placed in an area below the second solar section, and the connecting section is provided with contact terminals to which the first solar section and the second solar section are electrically connected.