Battery Housing Magnet Layout to Prevent Piercing Damage
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Solution Overview
Problem
Existing electronic devices face challenges in protecting batteries from damage due to impacts, such as drops or hits, especially when using magnets for coupling and alignment with charging docks, which can cause battery piercing or other damage.
Innovation Solution
A battery housing design with magnets positioned within apertures, separated from batteries by an intermediate layer, such as mylar, and using screw bosses and clips for alignment and cable management, allowing for efficient and protective battery placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If magnets are positioned close to batteries for compact design, then device thickness is reduced, but battery piercing damage risk increases
Solution Approach 1:
A non-conductive intermediate layer (such as adhesive or insulating material) is positioned between the magnets and the battery to prevent direct contact. This intermediary barrier stops the magnets from piercing the battery while allowing the components to remain in close proximity for a thin device design.
Solution Approach 2:
The harmful magnetic force is extracted or blocked from reaching the battery by introducing a non-magnetic, non-conductive material between them. This separates the magnetic function from the battery protection requirement.
2Reliability
If magnets are used for strong coupling with dock, then docking reliability is improved, but battery damage risk from impacts increases
Solution Approach 1:
A cushioning layer of non-conductive material is pre-positioned between the magnets and battery to absorb and distribute impact forces before they reach the battery. This beforehand protection prevents damage during docking impacts or drops.
Solution Approach 2:
The non-conductive intermediate layer acts as a mediator that allows strong magnetic coupling at the device-dock interface while protecting the battery from the harmful effects of that same coupling mechanism during impacts.
3Manufacturing precision
If magnets are placed within apertures of battery housing, then alignment precision is improved, but battery protection complexity increases
Solution Approach 1:
The battery housing aperture serves multiple functions: it provides precise alignment for the magnets, maintains structural integrity, and when combined with the intermediate layer, provides battery protection. This multi-functionality reduces overall system complexity.
Solution Approach 2:
The alignment function and protection function are merged into a single integrated solution where the aperture structure with the intermediate layer simultaneously achieves both precise magnet positioning and battery protection.
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
The solution provides enhanced protection for batteries by minimizing impact damage while enabling a thinner device design and facilitating easy battery replacement and cable management, ensuring reliable coupling and alignment with charging docks.
Implementation Method 1
The first plurality of magnets is arranged to magnetically couple with a second plurality of magnets of the dock
Data Source
AI summary
Various arrangements are presented for an electronic device having a battery housing and a tablet computer system having an electronic device having a battery housing. An electronic device may include an electronic display and an enclosure housing the electronic display. The electronic device may include one or more batteries that provide power to one or more components of the electronic device. The electronic device includes a first plurality of magnets. The first plurality of magnets is arranged to magnetically couple with a second plurality of magnets of a dock. The battery housing that houses the one or more batteries and separates the one or more batteries from the first plurality of magnets. The battery housing defines one or more apertures and the first plurality of magnets is positioned with the one or more apertures.