Smart Watch PCB Center Hole for Independent Movement Power
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Solution Overview
Problem
Conventional smart watches cannot function as clocks when their batteries are completely discharged, as the clock function is integrated with the smart functionality, which relies on a single battery source.
Innovation Solution
A smart watch design featuring a printed circuit board (PCB) with a hole at its center, accommodating a mechanical or electronic movement that can operate independently of the smart function's battery, allowing the clock function to continue working even when the smart battery is discharged, utilizing a separate battery for the movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the clock function is integrated with the smart functionality and uses a single battery source, then the device structure is simplified, but the clock function cannot operate when the battery is completely discharged
Solution Approach 1:
The patent divides the power supply system into two independent battery sources: a first battery exclusively for the movement (clock function) and a second battery for the smart function. This segmentation ensures that the clock function can operate independently when the smart battery is discharged, resolving the contradiction between reliability and complexity by creating functionally independent power systems.
Solution Approach 2:
The patent extracts the clock function's power supply from the integrated battery system, creating a separate first battery that is exclusively dedicated to the movement. This extraction allows the clock function to maintain operation even when the second battery (smart function power source) is completely discharged, thereby improving reliability without significantly increasing overall system complexity.
2Adaptability or versatility
If a separate battery is used for the movement, then the clock function can operate independently, but the device structure becomes more complex
Solution Approach 1:
The patent applies local quality by assigning different power supply characteristics to different functional areas: the first battery provides continuous power to the movement regardless of smart function status, while the second battery powers only the smart functions. This localized power supply approach enables function independence while managing complexity through clear functional separation rather than integrated design.
3Ease of manufacture
If the movement size is smaller than the dial pad diameter, then the movement can be affixed to the case, but an additional affixing part is required which serves only physical attachment
Solution Approach 1:
The patent makes the affixing part multi-functional by integrating it with the PCB structure. The affixing part not only physically attaches the movement to the case but also serves as a structural component of the PCB assembly, potentially providing electrical connection pathways or mechanical support for other components. This eliminates the need for dedicated single-function affixing parts and reduces overall structural complexity.
Data Source
AI summary
A watch including a dial pad, a circular movement disposed adjacent to the dial pad, a circular printed circuit board (PCB) having an inner diameter and an outer diameter, the PCB including a hole defined as the inner diameter and a plurality of integrated circuits (ICs) disposed in a region between the inner diameter and the outer diameter, in which the movement having a diameter smaller than the inner diameter is shaped and sized to fit into the hole, a first battery disposed adjacent to the PCB and supplies a first operating voltage only to the PCB, and a case dimensioned and shaped to receive the dial pad, the movement, the PCB, and the first battery.