Parallel Actuator-Rack Layout for Sliding Housing and Battery Space
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Solution Overview
Problem
Existing electronic devices face challenges in efficiently utilizing battery capacity and housing part movements due to limitations in driving mechanisms and battery positioning.
Innovation Solution
Incorporating an actuator and a rack gear parallel to each other, with a driving mechanism that includes a pinion gear and gears to transmit driving force, allowing for the movement of housing parts and optimizing battery placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the battery is positioned in the first region (laminating region of printed circuit boards), then the structural stability is improved, but the battery capacity is reduced due to space constraints
Solution Approach 1:
The battery is repositioned from the traditional planar layout in the first region to a three-dimensional configuration in the second region, utilizing vertical space above the non-laminating region. This dimensional transition allows the battery to occupy unused volumetric space without interfering with the printed circuit board assembly, thereby increasing battery capacity while maintaining structural stability.
2Device complexity
If the driving mechanism uses a conventional perpendicular arrangement of actuator and rack gear, then the mechanical transmission is simplified, but the space utilization is reduced
Solution Approach 1:
The patent employs an asymmetric parallel arrangement where the actuator and rack gear are positioned side-by-side in parallel rather than in the conventional perpendicular configuration. This asymmetric layout optimizes the distribution of mechanical components within the housing, improving space utilization by reducing the bounding box volume required for the driving mechanism while maintaining transmission functionality.
3Ease of manufacture
If the actuator rotation axis is perpendicular to the movement direction, then the rack gear engagement is simplified, but the housing part movement efficiency is reduced
Solution Approach 1:
The patent changes the geometric parameter of the actuator rotation axis orientation from perpendicular to parallel relative to the movement direction. This parameter modification fundamentally alters the kinematic relationship between the actuator and rack gear, enabling more efficient force transmission and improving housing part movement efficiency while maintaining manufacturability through standard parallel alignment practices.
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
Enhances the efficiency of battery utilization and housing part movements, improving the overall performance and flexibility of electronic devices.
Implementation Method 1
an actuator disposed to have a rotation axis parallel to a direction of the movement of the first housing part or the second housing part
Implementation Method 2
a rack gear disposed parallel to the rotation axis. The driving mechanism may include a pinion gear, operatively coupled to the actuator, configured to rotate based on an operation of the actuator, and engaged with the rack gear
Implementation Method 3
The one or more gears may be connected to each of the actuator and the pinion gear to transmit driving force from the actuator to the pinion gear
Data Source
AI summary
An electronic device includes a housing including a first housing part and a second housing part movably coupled to the first housing part, a driving mechanism, a battery, and a printed circuit board. The driving mechanism includes an actuator disposed to have a rotation axis parallel to a direction of the movement of the second housing part, and a rack gear extending parallel to the direction. The printed circuit board includes a first region including a plurality of layers and a single layer, and includes a second region overlapping the battery.