Collector Protector Device for Battery Current Collectors Under Recoil

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Lithium-ion battery conductors in cameras mounted on shooting devices, such as guns, are prone to fracture due to recoil, shock, and vibration, which causes stress on the current collectors and potential failure.

Innovation Solution

A collector protector device is used to maintain the active electrode materials against the cell wall, reducing the gap between the electrode materials and the current collectors, and incorporating an optional pad for shock absorption and contouring, allowing for expansion and contraction due to state-of-charge and thermal changes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the battery is mounted in a camera attached to a shooting device, then the camera can be powered during use, but the conductors in the battery are prone to fracture due to recoil, shock, and vibration

Engineering Contradiction:

Improveconductor integrityVSAvoidrecoil and vibration stress

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies beforehand cushioning by introducing a collector protector device that is pre-installed between the electrode materials and the current collectors. This protector device cushions and absorbs the recoil and vibration stresses before they can reach and fracture the conductors, thereby preventing conductor failure while maintaining battery functionality in shooting devices

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The collector protector device serves as an intermediary element positioned between the electrode materials and the current collectors. This intermediary component isolates the conductors from direct exposure to harmful recoil and vibration forces, allowing the battery to function reliably in cameras mounted on shooting devices without compromising conductor integrity

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the physical dimensions of the battery cell are allowed to vary with temperature and charge level, then the battery can accommodate expansion and contraction, but the gap between electrode materials and current collectors increases, stressing the conductors

Engineering Contradiction:

Improvethermal and charge expansion accommodationVSAvoidconductor stress resistance

Core Design Contradiction:

Adaptability or versatilityVSStrength

Solution Approach 1:

The collector protector device functions as a flexible interface layer that can deform and adapt to the changing physical dimensions of the battery cell during thermal and charge cycles. This flexible structure maintains consistent contact between the electrode materials and current collectors regardless of expansion or contraction, preventing conductor stress while accommodating natural battery dimensional variations

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The invention addresses parameter changes by designing a collector protector device that responds to and accommodates changes in battery cell dimensions caused by temperature and charge level variations. The protector device maintains optimal contact pressure and gap minimization across different operational states, ensuring conductor protection while allowing the battery to adapt to changing conditions

Inventive Principle:

Principle #35Parameter changes

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 solution effectively minimizes stress on current collectors during recoil and vibration, preventing fracture and ensuring reliable power supply to the camera device.

Implementation Method 1

incorporating an optional pad for shock absorption and contouring

Methodology Applied

Scientific EffectShock absorption: Damping

Implementation Method 2

This invention allows for expansion and contraction due to thermal changes

Methodology Applied

Scientific EffectThermal expansion: Thermal Expansion

Data Source

PatentUS10141552B2Protection system for a battery during recoil of a shooting device

Publication Date: 2018.11.27 STEWART DAVID A

AI summary

This invention relates to the protection system for battery current collectors in cameras mounted on a gun, bow, or shooting device. More particularly, the present invention relates to the system of protecting the current collectors from fracture in a camera attached to a gun barrel or shooting device as a result of recoil and shock and vibration during shooting device discharge.