Battery Cover Ventilation Structure for Thermal Insulation and Cooling
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Solution Overview
Problem
Existing battery covers fail to efficiently protect batteries from extreme temperature fluctuations in vehicle engine rooms, leading to thermal degradation and reduced service life.
Innovation Solution
A battery cover with a heat-insulating cover member featuring an inlet for outside air introduction, an outlet for air discharge, and a ventilation portion defined by thin and thick sections to facilitate efficient cooling and insulation, preventing thermal degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a battery cover with uniform thickness is used, then the manufacturing process is simple, but the cooling efficiency and thermal insulation performance are insufficient
Solution Approach 1:
The battery cover employs varying thickness across different regions: a first thickness in the ventilation portion for efficient air flow and cooling, and a second thickness in the insulation portion for thermal protection. This local differentiation optimizes both cooling efficiency and thermal insulation performance simultaneously.
2Productivity
If the cover member is made thinner to improve air flow, then cooling efficiency increases, but heat insulation performance deteriorates
Solution Approach 1:
The battery cover is divided into distinct functional segments: a ventilation portion with thinner structure for optimized air flow and cooling efficiency, and an insulation portion with thicker structure for superior heat insulation performance. This segmentation allows each portion to perform its specific function optimally.
Solution Approach 2:
Different thickness values are assigned to different portions of the cover member based on their specific functional requirements. The ventilation portion uses a first thickness that maximizes air flow, while the insulation portion uses a second thickness that maximizes thermal protection.
3Reliability
If a thick cover member is used, then heat insulation performance improves, but cooling efficiency and air flow deteriorate
Solution Approach 1:
The cover member is segmented into an insulation portion with greater thickness for heat protection and a ventilation portion with lesser thickness for air flow. This segmentation resolves the contradiction by assigning appropriate thickness to each functional zone.
Solution Approach 2:
The thickness of the cover member is locally optimized: thicker in regions requiring insulation and thinner in regions requiring air flow. This local quality differentiation enables simultaneous achievement of both insulation and cooling objectives.
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 cools the battery and insulates it from hot air, enhancing energy efficiency and extending battery service life by efficiently managing temperature fluctuations.
Implementation Method 1
an air duct that guides traveling wind to the battery is provided to cool the battery stored in the housing box by the traveling wind
Implementation Method 2
a cover member that has a heat insulating property and encloses a battery mounted on a vehicle
Data Source
AI summary
There is provided with a battery cover that can efficiently protect a battery from the ambient temperature environment. The battery cover comprises: a cover member that has a heat insulating property and encloses a battery mounted on a vehicle; an inlet formed in the cover member to introduce outside air into the cover member of the vehicle; and an outlet formed in the cover member to discharge the outside air introduced into the cover member from the inlet, the cover member includes a ventilation portion that connects the inlet and the outlet, and the ventilation portion is defined by a thin portion of the cover member and a thick portion of the cover member formed thicker than the thin portion.