Battery Pack Cyclone Collector for Dust and Spark Separation
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Solution Overview
Problem
Existing cyclone collectors for battery packs discharge dust-containing gas directly, leading to dust scattering and potential safety hazards from sparks, as they do not effectively separate dust and sparks from the gas before discharge.
Innovation Solution
A cyclone collector is designed to produce a swirl flow within the gas discharged from battery cells, centrifuging and separating dust, thereby preventing or reducing dust scattering and improving safety by containing sparks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If gas containing dust is discharged directly from the pack case through the exhaust duct, then the gas discharge function is simple and direct, but dust is scattered to the surroundings and sparks may transmit heat causing safety hazards
Solution Approach 1:
A cyclone collector is introduced as an intermediary device between the pack case and exhaust duct. The cyclone collector receives gas containing dust and sparks from the pack case, separates dust particles through centrifugal force generated by swirl flow, and discharges the cleaned gas through the exhaust duct. This intermediary structure effectively removes dust and contains sparks while maintaining a relatively simple overall system architecture.
Solution Approach 2:
The cyclone collector extracts and separates dust particles from the gas stream using centrifugal separation. The swirl flow generated inside the cyclone collector causes dust particles to move outward along the wall and be collected in a dust collection chamber, while the cleaned gas is discharged separately. This extraction process removes the harmful dust component while preserving the gas discharge function.
2Object-affected harmful factors
If a cyclone collector is introduced to separate dust from gas, then dust scattering is prevented and safety is improved, but the device structure becomes more complex
Solution Approach 1:
The gas discharge system is segmented into distinct functional zones: a dust collection chamber where dust accumulates, a swirl chamber where separation occurs, and a gas discharge passage where cleaned gas exits. The cyclone collector is further divided into a body portion and a cap portion with a communication passage between them. This segmentation allows each component to perform its specific function efficiently while maintaining overall structural compactness.
Solution Approach 2:
The internal cylinder is nested within the cyclone collector body, and the communication passage is integrated within the cap structure. The exhaust duct is positioned to communicate with the gas discharge passage. This nested arrangement maximizes space utilization and reduces the overall footprint of the system, minimizing the increase in device complexity while achieving effective dust separation.
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 cyclone collector effectively separates dust from gas, preventing its scattering and enhancing safety by containing sparks, thus improving the safety of battery packs.
Implementation Method 1
cause the gas discharged from the pack case to produce a swirl flow
Implementation Method 2
centrifuge the dust contained in the gas
Data Source
AI summary
The present disclosure provides a cyclone collector to be used for a battery pack including battery cells and a pack case housing the battery cells. The cyclone collector is configured to, when gas containing dust is issued from at least one of the battery cells inside the pack case, cause the gas discharged from the pack case to produce a swirl flow so as to centrifuge the dust contained in the gas.