Modular G-Sensor for Automobile Tray Using Segmented Lever and Slider
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Solution Overview
Problem
Conventional G-sensors for automobile trays are complex, occupy significant space, and have complicated operation mechanisms, making them difficult to install and share components across different tray configurations, especially when dealing with varying open angles.
Innovation Solution
A modular G-sensor design featuring a lever, slider, weight, housing, and elastic body that allows for easy installation and shared component usage across different tray angles, utilizing a hinge shaft for rotational movement and a one-way clutch damper to manage external forces effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional heavy object-based G-sensor is used to prevent tray opening during collision, then the tray can be protected from opening due to inertial load, but the structure becomes complicated and occupies significant mounting space
Solution Approach 1:
The G-sensor is divided into separate functional modules: a lever component for detecting acceleration, a weight component for generating inertial force, and a locking component for preventing tray opening. This segmentation allows each component to be optimized independently and simplifies the overall structure while maintaining reliability.
Solution Approach 2:
The lever component serves multiple functions: it acts as a lever arm for rotational movement, a guide for the slider, and a structural element that transmits force. This multi-functionality reduces the total number of components needed and simplifies the overall G-sensor design.
2Reliability
If a conventional heavy object-based G-sensor is used to prevent tray opening during collision, then the tray can be protected from opening due to inertial load, but the mounting space required increases significantly
Solution Approach 1:
The slider is positioned within a keyhole-shaped opening in the lever, and the weight is positioned within the housing near the lever's rotation axis. This nesting arrangement allows components to occupy overlapping or adjacent spaces, minimizing the overall mounting footprint while maintaining functional integrity.
Solution Approach 2:
The G-sensor components are arranged in a compact three-dimensional configuration within the housing, utilizing vertical and lateral spaces efficiently. The lever rotates in a plane perpendicular to the housing face, while the slider moves vertically within the lever's keyhole opening, creating a space-efficient spatial arrangement.
3Reliability
If a conventional G-sensor with complex operation mechanism is used, then the tray can be protected from opening during collision, but the assembly process becomes complicated and time-consuming
Solution Approach 1:
The lever, slider, and weight are combined into a single integrated G-sensor assembly that functions as one unit. This merging simplifies the assembly process, as the entire G-sensor can be installed as a single component rather than assembling multiple separate parts, thereby reducing manufacturing complexity and time.
Solution Approach 2:
The elastic body automatically returns the lever to its initial position after collision, and the weight automatically generates the necessary inertial force during acceleration. This self-service mechanism eliminates the need for complex control systems or manual intervention, simplifying both assembly and operation.
4Productivity
If a modular G-sensor design is used to enable shared component usage across different tray configurations, then assembly time is reduced and component versatility is improved, but the design complexity increases
Solution Approach 1:
The lever, slider, and weight components are designed with standardized interfaces and dimensions that allow them to be used across different tray models and configurations. This universality enables shared component usage, reducing inventory requirements and assembly time, while the modular architecture manages design complexity through standardization.
Solution Approach 2:
The G-sensor is segmented into standardized modular components that can be independently manufactured, tested, and assembled. This segmentation facilitates shared component usage across different vehicle models while managing design complexity through modular standardization and interchangeable interfaces.
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 modular design reduces vehicle assembly time and enables shared component usage across various vehicle types, ensuring effective prevention of tray cover opening during external forces while minimizing friction noise and assembly complexity.
Implementation Method 1
a weight (130) for endowing a rotational moment such that the lever (120) rotates around the hinge shaft (121), and such that the slider (140) can slide
Implementation Method 2
an elastic body (150), such as a spring, installed to provide the lever (120) installed on the housing (110) with power such that the same returns to the original condition
Implementation Method 3
a one-way clutch damper (170) installed on a lower portion of the lever (120) to which the weight (130) is coupled so as to defer the time when the lever (120) returns to the original condition
Data Source
AI summary
A G-sensor for an automobile tray, and more particularly, a G-sensor for an automobile tray wherein a G-sensor for preventing a tray cover from being opened by an external force generated when the vehicle travels is modularized. The G sensor includes a lever configured to rotate around a hinge shaft, a slider coupled to the lever and guided along a key hole according to the state of rotation of the lever, a weight coupled to the lever for endowing a rotational moment of the lever around the hinge shaft, and a spring to provide the lever with power such that the same returns to the original condition.