Mobile Terminal Buffer Elastic Block Drop Protection Mechanism
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Solution Overview
Problem
Existing mobile terminal drop protection systems with rod-shaped shock absorption structures are prone to deformation or fracture upon impact, leading to stress concentration and potential internal damage.
Innovation Solution
A mobile terminal design featuring a buffer elastic block and elastic block control unit, where the buffer elastic block is mounted on a middle frame and ejects outward upon detection of a drop, using a buffer spring and electromagnetic drive limiting mechanism to absorb momentum and distribute force, reducing shock stress and preventing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a rod-shaped shock absorption structure is used, then the device complexity is reduced, but the reliability deteriorates due to deformation or fracture upon impact
Solution Approach 1:
The shock absorption structure is divided into multiple buffer elastic blocks distributed at different positions (four corners of the mobile terminal), each independently absorbing shock in its local area. This segmentation prevents stress concentration and structural failure while maintaining overall system reliability.
Solution Approach 2:
The patent changes the physical parameters of the shock absorption element by using elastic blocks with specific material properties (elasticity, flexibility) rather than rigid rod structures. The buffer elastic blocks can deform elastically under impact forces, absorbing energy without fracturing, thus improving reliability.
2Reliability
If a buffer elastic block with large contact area is used, then the shock stress is distributed and reliability improves, but the device complexity increases due to additional control mechanisms
Solution Approach 1:
The buffer elastic blocks are pre-positioned at the four corners of the mobile terminal in a ready state before any drop occurs. When a drop is detected, the blocks are rapidly deployed to the correct positions to absorb impact. This preliminary positioning eliminates the need for complex real-time control during impact, reducing control mechanism complexity while maintaining reliability.
Solution Approach 2:
The buffer elastic blocks are designed to automatically deploy and position themselves based on the drop detection signal, without requiring complex manual control mechanisms. The electromagnetic drive limiting mechanism provides simple on/off control, allowing the blocks to self-service the shock absorption function.
3Reliability
If the buffer elastic block ejects outward upon drop detection, then the shock absorption effectiveness improves, but the loss of substance increases due to potential block detachment
Solution Approach 1:
The buffer elastic blocks are pre-installed and secured to the middle frame using the electromagnetic drive limiting mechanism before any drop occurs. This beforehand securing prevents the blocks from detaching during impact, eliminating the risk of substance loss while maintaining the effectiveness of outward ejection for shock absorption.
Solution Approach 2:
The electromagnetic drive limiting mechanism acts as an intermediary between the buffer elastic block and the middle frame. It provides controlled attachment and detachment, allowing the block to eject outward for shock absorption while preventing uncontrolled detachment that would cause substance loss.
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 buffer elastic block effectively absorbs momentum and reduces instantaneous shock stress, protecting the internal modules and preventing damage to the screen and external surfaces by distributing the force across a larger contact area.
Implementation Method 1
the buffer spring is connected to the buffer elastic block, and the other end of the buffer spring is connected to the middle frame
Implementation Method 2
the buffer elastic block effectively absorbs momentum and reduces instantaneous shock stress
Implementation Method 3
the electromagnetic drive limiting mechanism is mounted on the middle frame, and the electromagnetic drive limiting mechanism is configured to seize or release the buffer elastic block
Implementation Method 4
the limiting block is provided with a ferromagnet cooperated with the electromagnet
Data Source
AI summary
Provided are a mobile terminal and a drop protection method thereof. The mobile terminal includes a display panel, a middle frame, a rear shell, a protection module and a detection module; the middle frame being mounted in the rear shell; and the display being arranged on the middle frame. The protection module includes a buffer elastic block mounted on the middle frame and an elastic block control unit for controlling buffer elastic block to eject out if the mobile terminal is in a drop state. At the instant of dropping down to the ground, the buffer elastic block absorbs a generated momentum reduces instant impact stress of mobile terminal, thereby protecting modules, and preventing stress concentration. Since buffer elastic block is arranged on middle frame, the mobile terminal is better protected, and damages to the screen and the internal modules caused by drop of the mobile terminal are be avoided.