EV Battery Pack Casing With Shock Absorption and Heat Dissipation
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Solution Overview
Problem
Existing protective casings for electric vehicle battery packs are either heavy and bulky, costly, or fail to adequately absorb shocks and vibrations, leading to potential damage and safety risks during accidents, battery swapping, and rough usage.
Innovation Solution
A protective casing designed for electric vehicle battery packs, comprising a housing with fastener holes for secure mounting, a top cover with cable grommets and a carry handle, and a shock absorption casing made of EPDM rubber with protrusions and various heat dissipation shapes, such as X, H, and V structures, to absorb shocks and facilitate heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional protective casings with robust shock absorption are used, then reliability is improved, but weight increases and cost increases
Solution Approach 1:
The patent uses composite materials combining a rigid housing (polycarbonate or ABS plastic) with an integrated shock-absorbing casing (EPDM rubber or TPE material). This composite structure achieves effective shock absorption while maintaining lightweight properties, avoiding the need for heavy metal protective casings.
Solution Approach 2:
The shock-absorbing casing is integrated directly into the housing structure rather than being a separate component. The housing and shock-absorbing casing form a unified protective assembly, reducing overall weight and simplifying the structure while maintaining reliability.
2Reliability
If robust protective structures are used, then reliability is improved, but device complexity increases
Solution Approach 1:
The housing and shock-absorbing casing are designed as an integrated unit with the shock-absorbing casing embedded within or attached to the housing. This merging of components simplifies the overall structure and reduces the number of separate parts while maintaining comprehensive protective capability.
Solution Approach 2:
The housing serves multiple functions: it provides structural support, contains the battery pack, and integrates the shock-absorbing casing for protection. The top cover also serves dual purposes as both a closure and a mounting surface for fasteners. This multi-functionality reduces overall device complexity.
3Reliability
If traditional shock absorption materials are used, then reliability is improved, but cost increases
Solution Approach 1:
The patent specifies using EPDM rubber or TPE (thermoplastic elastomer) materials with specific durometer ranges (40-70 Shore A) for the shock-absorbing casing. These material parameter specifications balance vibration resistance performance with cost-effectiveness, avoiding expensive specialized materials while achieving reliable protection.
Solution Approach 2:
The combination of common plastics (polycarbonate, ABS) for the housing with elastomeric materials (EPDM, TPE) for shock absorption creates a cost-effective composite structure. These materials are widely available and can be manufactured using standard processes, reducing overall manufacturing cost while maintaining reliability.
4Reliability
If comprehensive protective coverage is provided, then reliability is improved, but heat dissipation is reduced
Solution Approach 1:
The shock-absorbing casing is strategically positioned to cover only the critical impact zones and edges of the housing, rather than completely enclosing it. This localized protection approach maintains reliable impact protection where needed while leaving other areas open for heat dissipation.
Solution Approach 2:
The protective casing is designed with segmented or open structures rather than a solid continuous shell. The shock-absorbing material is applied in specific regions or as discrete elements, allowing heat to pass through while maintaining protective coverage at critical points.
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 proposed protective casing effectively absorbs shocks and vibrations, provides ergonomic design for enhanced safety, and is lightweight and cost-effective, thereby reducing the risk of battery pack damage and ensuring reliable operation of electric vehicles.
Implementation Method 1
a shock absorption casing made of EPDM rubber with protrusions and various heat dissipation shapes, such as X, H, and V structures, to absorb shocks
Implementation Method 2
various heat dissipation shapes, such as X, H, and V structures, to absorb shocks and facilitate heat dissipation
Data Source
AI summary
A protective casing for a battery pack of an electric vehicle is provided. The protective casing for a battery pack of an electric vehicle comprises a shock absorption casing, a top cover and a housing. The protective casing with ergonomic designs facilitates extra safety for the electric vehicle's battery pack. A plurality of protrusions on the outer surface of the shock absorption casing reduces the thickness of the shock absorption casing. The protective casing with shock absorption casing is configured to safeguard the housing and the battery pack by absorbing the shocks and vibration during battery swapping, rough usage of a battery, vehicle movement on uneven roads, and mechanical vibrations of the vehicle due to an electric motor in the electric vehicle.