Button Cell Electrode Layout for Magnetic Field Cancellation
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Solution Overview
Problem
Button cells in Bluetooth headsets generate noise due to their magnetic field, affecting sound quality and user experience.
Innovation Solution
An electrochemical apparatus with a specific housing and electrode assembly design, featuring tabs and connecting members that partially cancel out magnetic fields when in a charging/discharging state, reducing electromagnetic interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If button cells are used in Bluetooth headsets, then power supply function is provided, but magnetic field noise is generated affecting sound quality
Solution Approach 1:
The patent converts the harmful magnetic field generated by the button cell into a beneficial effect by strategically positioning connecting members to create opposing magnetic fields that cancel out the noise, transforming the harmful magnetic field into a solution for magnetic field cancellation
Solution Approach 2:
The connecting members serve as intermediary elements that not only provide electrical connection but also generate compensating magnetic fields to offset the noise from the button cell, acting as a mediator between the power supply function and the magnetic field interference problem
2Object-affected harmful factors
If connecting members are positioned to cancel magnetic fields, then electromagnetic interference is reduced, but device structure becomes more complex
Solution Approach 1:
The connecting members are designed to perform multiple functions simultaneously: providing electrical connection between components and generating magnetic fields for noise cancellation, thereby reducing the need for separate components and simplifying the overall device structure
Solution Approach 2:
The patent merges the electrical connection function and magnetic field generation function into a single component (the connecting member), combining previously separate functions into one integrated element to reduce structural complexity
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 apparatus effectively weakens its own magnetic field, minimizing electromagnetic interference and improving the sound quality of connected devices.
Implementation Method 1
When the electrochemical apparatus is in a charging/discharging state, a magnetic field generated by the first tab and a magnetic field generated by the first connecting member can at least partially cancel each other out
Implementation Method 2
a magnetic field generated by the first tab and a magnetic field generated by the first connecting member can at least partially cancel each other out, and/or a magnetic field generated by the second tab and a magnetic field generated by the second connecting member can at least partially cancel each other out
Data Source
AI summary
An electrochemical apparatus, including a housing, an electrode assembly, a first tab, a first connecting member, a second tab, and a second connecting member. The housing includes a top wall, a side wall, and a bottom wall, the top wall being provided with a first electrode. The electrode assembly includes a first electrode plate and a second electrode plate. The first tab is connected to the first electrode plate and the first electrode, and the first connecting member is connected to the first electrode. The second tab is connected to the second electrode plate and the housing, and the second connecting member is connected to the housing. When the electrochemical apparatus is in a charging/discharging state, a magnetic field generated by the electrochemical apparatus is weakened, reducing electromagnetic interference of the electrochemical apparatus to an electric device.