Multi-Element Shock Absorber Structure for Electronic Device Impact Protection

Solution Overview

Problem

Existing shock absorbing structures for electronic devices, such as mobile phones and tablets, primarily using single rubber shock absorbers, fail to effectively cushion shocks, leading to inadequate protection against damage.

Innovation Solution

A shock absorbing device comprising a tower spring and multiple shock absorbing silicones with annular clamping slots, connected via universal connectors, which absorb and disperse shock energy, ensuring the device's integrity and durability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single rubber shock absorber is used, then the structure is simple, but the shock absorbing effect is poor

Engineering Contradiction:
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The shock absorbing device is divided into multiple independent shock absorbing elements (first shock absorbing element, second shock absorbing element, third shock absorbing element) arranged in parallel. Each element consists of multiple shock absorbing components (first, second, third shock absorbing components) that work independently to provide comprehensive shock protection across different directions and intensities.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent employs multiple types of shock absorbing components with different material properties and working mechanisms. These include elastic components (springs), viscous components (dampers), and friction-based components (shear friction shock absorbing components), creating a composite shock absorbing system that leverages the advantages of each material type to achieve superior overall performance.

Inventive Principle:
Principle #40Composite materials

2Reliability

If multiple shock absorbing elements are added, then the shock absorbing effect is enhanced, but the device complexity increases

Engineering Contradiction:
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Multiple shock absorbing elements are merged into a single integrated device body, with all components mounted on a common shock absorbing device body. This unified structure allows the multiple elements to work协同 (cooperatively) while maintaining a compact form factor, reducing the space and complexity that would result from separate shock absorbing devices.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The shock absorbing device is designed with universal mounting interfaces (first mounting interface, second mounting interface) that can accommodate various electronic products. The same device structure can protect different types of devices (mobile phones, tablets, wearables) against shocks from multiple directions, making the complex structure universally applicable and justifying its complexity through broad utility.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 combination of tower springs and shock absorbing silicones provides enhanced shock absorption, maintaining device integrity and durability, effectively reducing shock damage and ensuring quick recovery from deformation.

Implementation Method 1

a primary shock absorbing element and a secondary shock absorbing element located on the outside of a circle of the primary shock absorbing element are arranged between the upper shock absorbing cover and the lower shock absorbing cover

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

the secondary shock absorbing element comprises shock absorbing silicones, mother and child limit screws sleeved inside the shock absorbing silicones

Methodology Applied
Scientific EffectViscoelasticity: Viscoelasticity

Implementation Method 3

shock absorbing springs sleeved outside the mother and child limit screws and located inside the shock absorbing silicones

Methodology Applied
Scientific EffectSpring elasticity: Spring

Data Source

PatentEP4707635A1Shock absorbing device
Publication Date: 2026.03.11
  • EP4707635A1 patent drawingFigure 1
  • EP4707635A1 patent drawingFigure 2
  • EP4707635A1 patent drawingFigure 3

AI summary

A shock absorbing device comprises a shock absorbing device body, which comprises an upper shock absorbing cover and a lower shock absorbing cover, a primary shock absorbing element and a secondary shock absorbing element located on the outside of a circle of the primary shock absorbing element are arranged between the upper shock absorbing cover and the lower shock absorbing cover; a tower spring is matched with a plurality of shock absorbing silicones to effectively reduce the shock transfer between the upper shock absorbing cover and the lower shock absorbing cover; the upper shock absorbing cover and the lower shock absorbing cover are not directly connected with mother and child limit screws, but are connected with the mother and child limit screws through the shock absorbing silicones; a shock absorbing spring can assist the shock absorbing silicones to buffer the shock and shape the shock absorbing silicones.