Wearable Ring Battery-in-Cover Layout for Sensor Placement
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Solution Overview
Problem
The size and geometric constraints of batteries in wearable devices, particularly in smaller form factors like rings, limit the placement and functionality of sensors, restricting measurement capabilities and user comfort.
Innovation Solution
Integrating the battery into the outer shell of the wearable device, allowing it to span 360° around the circumference and reducing thickness, enabling sensors to be placed on top of the battery, thus increasing the radial footprint and variety of optical channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the battery is placed inside the wearable ring device, then the device can be powered, but the battery occupies space and increases thickness, limiting sensor placement options
Solution Approach 1:
The patent merges the battery with the outer shell of the wearable device, integrating the power source into the structural housing. This combination allows the battery to form part of the device's outer structure, reducing overall thickness while maintaining capacity, and enables sensors to be positioned on top of the battery integration area.
2Quantity of substance
If the battery spans a large radial footprint, then more capacity is available, but sensors cannot be placed on top of the battery
Solution Approach 1:
The patent transitions the battery from a planar radial arrangement to a three-dimensional integration within the outer shell structure. By utilizing the vertical dimension and integrating the battery into the shell's thickness, the solution allows sensors to be positioned on top of the battery area, providing both adequate capacity and sensor placement flexibility.
3Volume of moving object
If the battery thickness is reduced to improve comfort, then the device becomes thinner, but the battery capacity is limited
Solution Approach 1:
The patent changes the geometric parameters of the battery by integrating it into the outer shell structure. This reconfiguration allows the battery to maintain adequate capacity while reducing the device's overall thickness, as the battery utilizes the shell's structural volume rather than occupying separate space within the device.
Data Source
AI summary
Methods of manufacturing and devices for a wearable ring device with a battery in the cover of the device are described. The wearable ring device includes an outer shell component with an inner circumferential surface. The battery may extend radially around at least a portion of a circumference of the wearable ring device. In some cases, the wearable ring device may include a battery chamber configured to enclose the battery and charge carriers. One or more structural boundaries of the battery chamber are formed by a cavity within the inner circumferential surface and a battery cover layer coupled to the inner circumferential surface. The wearable ring device may include a printed circuit board (PCB) including a plurality of sensors electrically coupled to the battery. The PCB overlaps with the battery for at least a portion of the circumference of the wearable ring device.