Battery Connector Layout for Thin Device Expansion Space
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Solution Overview
Problem
Existing electronic devices face challenges in reducing thickness due to structural limitations that require a thick expansion space for battery expansion, which hinders the achievement of a light and thin design.
Innovation Solution
The electronic device incorporates a battery with a wrapping film and an electrical connector positioned such that the connector does not overlap with the wrapping film in the expansion region, allowing for a reduced thickness of the expansion space and overall device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the thickness of the electronic device is increased to reserve expansion space for the battery, then the battery expansion damage is avoided, but the device thickness increases which is not conducive to light and thin design
Solution Approach 1:
The patent applies local quality by creating a specific expansion region on the battery's first surface with defined dimensions (d = 0.5*h + a where a is 0-3mm). This localized expansion space is precisely positioned and sized to accommodate battery swelling only where needed, rather than increasing the overall device thickness uniformly. The electrical connector is strategically placed to avoid overlapping with this expansion region, allowing the battery to expand locally without affecting the overall device profile.
Solution Approach 2:
The patent resolves the thickness contradiction by transitioning from a three-dimensional thickness increase to a two-dimensional planar arrangement. Instead of reserving expansion space by increasing the device thickness in the Z-direction, the solution positions the electrical connector and expansion region in the X-Y plane on the battery's first surface. This dimensional shift allows the expansion space to be accommodated laterally rather than vertically, maintaining the device's thin profile while providing necessary expansion room.
2Ease of operation
If the electrical connector is positioned on the battery surface, then electrical connection is achieved, but the connector may overlap with the expansion region increasing the required expansion space thickness
Solution Approach 1:
The patent applies local quality by defining a specific expansion region with precise dimensions (d = 0.5*h + a) on the battery surface and positioning the electrical connector in a location that avoids overlapping with this region. This localized spatial arrangement ensures that the connector maintains electrical functionality while the expansion region remains clear to accommodate battery swelling without increasing overall thickness.
Solution Approach 2:
The patent resolves the overlap issue by arranging the electrical connector and expansion region in different areas of the two-dimensional battery surface plane. Instead of allowing vertical stacking that would increase thickness, the solution distributes these components laterally across the battery's first surface, utilizing planar space efficiently to maintain both electrical connection and expansion capability without increasing the expansion space thickness.
Data Source
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AI summary
An electronic device is provided. The electronic device includes a housing, a battery, and an electrical connector. A battery compartment is arranged in the housing. The battery is mounted in the battery compartment. The battery includes a battery body and a wrapping film wrapped around a surface of the battery body. The battery body has a first surface, and the first surface has an expanded region. A distance between an edge of the expanded region and a peripheral edge of the first surface is d. At least part of the electrical connector is located on the first surface, and the part of the electrical connector located on the first surface does not overlap with the wrapping film in the expanded region.