Insulated Battery Pack Air-Layer Structure for Low-Temperature Heat Loss

The patent applies composite insulation structure combining multiple materials with different thermal properties. The first insulation layer uses a material with first thermal conductivity, the second insulation layer uses a different material with second thermal conductivity, creating a composite structure that optimizes both insulation performance and spatial utilization. This resolves the contradiction by achieving superior thermal insulation without excessive complexity through material composition rather than simple thickness increase.

The patent implements local quality by differentiating the thermal insulation properties at different locations within the battery pack. The first and second insulation layers are positioned at different locations with different thermal conductivity characteristics, providing localized optimization where high insulation is needed most. This allows the system to achieve overall excellent insulation performance while maintaining reasonable structural complexity.

The composite insulation structure with layers of different thermal conductivities creates a more effective thermal barrier that reduces heat loss to the external environment. This allows the heating system to maintain battery temperature more efficiently, reducing the energy required for heating in low temperature environments while maintaining temperature stability.

The insulation layers act as intermediary elements between the battery and the external environment, creating thermal resistance that slows heat transfer. This intermediary structure reduces direct thermal exchange with the cold environment, thereby reducing heating energy loss while maintaining battery temperature stability.

The patent uses composite insulation layers with different thermal conductivity properties to achieve high insulation performance with reduced total thickness. By combining materials strategically, the system obtains superior thermal resistance without requiring excessive space, thus fitting within the battery case volume constraints while minimizing heat loss.

The patent changes the thermal conductivity parameters of the insulation materials used, selecting materials with optimized thermal properties that provide high insulation efficiency per unit thickness. This allows achieving the required insulation performance within the limited spatial constraints of the battery pack design.