Echelon Battery Pack Seismic Resistance Design
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Solution Overview
Problem
Battery packs in pure electric automobiles lack seismic resistance, leading to potential liquid leakage and safety issues during collisions due to the absence of an anti-seismic device.
Innovation Solution
An echelon utilization battery pack design featuring a hollow cuboid structure with fixed seats, slidably connected shafts and blocks, buffer plates, springs, and a seal cover, providing a multi-directional suspension system to protect the battery during collisions and enhance safety, while also incorporating a draught fan and ventilation holes for improved heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional battery pack structure without anti-seismic devices is used, then the device complexity is low, but the reliability deteriorates due to battery damage during collisions
Solution Approach 1:
The patent implements beforehand cushioning by pre-installing buffer plates, springs, and damping components within the battery pack structure. These elements are positioned in advance to automatically activate during collision events, absorbing impact energy before it reaches the battery cells, thereby preventing damage without requiring complex active control systems
Solution Approach 2:
The battery pack is segmented into multiple independent protective zones with separate buffer plates, springs, and damping elements for each battery unit. This segmentation allows each component to independently absorb localized impact forces, preventing stress concentration and enabling modular replacement if damage occurs
2Stability of the object's composition
If a rigid fixed structure is used to secure batteries, then the stability is high, but the object-generated harmful factors increase due to liquid leakage during impact
Solution Approach 1:
The patent employs flexible protective shells and film-like damping materials that conform to battery contours while maintaining structural integrity. These flexible elements absorb impact forces through deformation rather than rigid resistance, preventing the transmission of shocks that would cause battery casing failure and liquid leakage, while still maintaining stable battery positioning
3Reliability
If multiple protective components are added to the battery pack, then the reliability improves, but the weight of moving object increases
Solution Approach 1:
The patent utilizes composite materials combining high-strength metals with lightweight polymer matrices, and integrates damping compounds into structural components. These composite structures provide equivalent protective performance to heavier solid materials while reducing overall weight, achieving seismic resistance through material optimization rather than sheer mass
Solution Approach 2:
The protective components are designed with multi-functionality: buffer plates serve both as impact absorbers and as structural supports; springs provide both shock absorption and battery positioning; damping elements simultaneously reduce vibration and dissipate energy. This multi-functionality eliminates the need for separate dedicated components for each protective function, reducing total component count and weight
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 design effectively protects the battery during collisions by distributing impact forces and enhances heat dissipation, thereby improving safety and prolonging battery life.
Implementation Method 1
third springs are mounted between the side faces of the second sliding blocks and the inner wall of the second shell
Implementation Method 2
rubber mats are mounted between the inner bottoms of the first sliding blocks and the inner top of the first shell
Implementation Method 3
a draught fan and ventilation holes are arranged in the two ends of the top of the seal cover respectively
Data Source
AI summary
Disclosed is an echelon utilization battery pack with good seismic resistance. The echelon utilization battery pack involves a battery pack body and a battery, wherein the battery pack body is of a hollow cuboid structure, fixed seats are fixed at two ends of the inner bottom of the battery pack body, first fixed shafts are fixed between the two fixed seats, the first fixed shafts are slidably connected with a mounting seat in a sleeving mode, a first sliding groove is formed in the top of the mounting seat, second fixed shafts are fixed in the first sliding groove, and the two ends of the second fixed shafts are slidably connected with first sliding blocks.