Wireless Sound Device Battery Electrode Antenna Integration
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Solution Overview
Problem
The challenge in designing a micromini wireless sound device is to enhance wireless communication performance while optimizing the limited space within the housing, particularly in arranging antennas for effective electromagnetic wave transmission.
Innovation Solution
The device incorporates the battery electrodes as antennas, with a flexible board connecting printed circuit boards and using a matching circuit to correct RF signal frequencies, allowing for a reduced number of antenna components and increased distance between the antenna and ground, thereby improving wireless communication performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the size of the wireless sound device is reduced to improve portability and wearing comfort, then the device becomes more portable and comfortable, but the space for arrangement of components becomes limited
Solution Approach 1:
The patent merges the antenna function with the battery component by using the battery's electrode as the antenna. This integration eliminates the need for a separate antenna component, thereby reducing the overall device volume while maintaining wireless communication functionality. The electrode of the battery serves dual purposes: energy storage and electromagnetic wave transmission.
Solution Approach 2:
The battery electrode is designed to perform multiple functions simultaneously: it acts as both the power source component and the antenna for wireless communication. This multi-functionality approach allows the device to maintain comprehensive functionality (power supply + wireless communication) while minimizing the number of components and overall device size.
2Reliability
If a separate antenna is added to improve wireless communication performance, then communication performance improves, but the device volume increases
Solution Approach 1:
The patent combines the antenna function with the battery electrode, eliminating the need for a separate antenna component. This merging approach maintains wireless communication performance while avoiding the volume increase that would result from adding a dedicated antenna.
Solution Approach 2:
The battery electrode serves itself by performing both its primary function (energy storage) and an additional function (antenna for wireless communication). This self-service approach allows the component to contribute to multiple system functions without requiring additional dedicated components.
3Reliability
If the distance between the antenna and ground is increased to improve wireless communication performance, then communication performance improves, but the arrangement space requirement increases
Solution Approach 1:
By integrating the antenna function into the battery electrode, the patent creates a compact configuration where the antenna is positioned at the extreme end of the device. This merging allows for maximum distance between the antenna and ground within the limited device volume, improving communication performance without requiring additional arrangement space.
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 the space required for antennas, enhances short-range wireless communication by increasing the distance between the antenna and ground, and allows for better frequency management, leading to improved communication performance.
Implementation Method 1
an electrode connected to the electricity feeding line serves as an antenna for radiating the RF signal
Data Source
AI summary
The present invention relates to a wireless sound device comprising: a housing having a sound hole formed on one side thereof; a sound output unit provided to the housing so as to output sound via the sound hole; a substrate provided to the housing so as to be positioned on the other side of the sound output unit; a battery provided to the housing so as to be positioned on the other side of the substrate, and comprising a pair of electrodes; a wireless communication unit provided to the substrate and carrying out wireless communication by supplying an RF signal; a pair of power terminals for connecting the pair of electrodes with the substrate so as to receive power from the battery; and a feed line connected to at least one of the pair of electrodes so as to supply the RF signal from the wireless communication unit to the at least one of the pair of electrodes, wherein the electrode connected to the feed line is an antenna for radiating the RF signal.