Drive Case Thermal Barrier for Oil Heat Retention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicular driving devices struggle to effectively utilize the heat of oil stored in the oil storage section due to easy heat dissipation, making it difficult to harness the thermal energy.
Innovation Solution
Incorporating a heat transfer inhibiting section in the case that extends horizontally and has higher thermal resistance than adjacent portions, preventing heat transfer to the upper parts of the case and reducing heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the case is made with uniform thermal conductivity, then heat transfer is simple and manufacturing is easy, but heat of oil in the oil storage section transfers easily to the upper parts of the case causing heat loss
Solution Approach 1:
The case is designed with different thermal conductivity regions: the lower part (first case part) has higher thermal conductivity to facilitate heat transfer from the oil storage section, while the upper part (second case part) has lower thermal conductivity to prevent heat transfer to external environments. This local differentiation of thermal properties reduces overall heat loss while maintaining structural integrity.
Solution Approach 2:
The case is segmented into at least two distinct parts along the vertical direction: a first case part corresponding to the oil storage section with higher thermal conductivity, and a second case part above it with lower thermal conductivity. This segmentation allows each part to perform its specific thermal function independently.
2Loss of energy
If the case structure is simplified without thermal inhibition, then manufacturing is easier, but heat of oil dissipates easily to the environment
Solution Approach 1:
The case incorporates a thermal inhibition section with specifically reduced thermal conductivity at the boundary between the oil storage section and the upper case parts. This localized thermal barrier prevents heat dissipation to the environment while maintaining overall case simplicity and manufacturability.
Solution Approach 2:
The case may utilize composite material structures or material combinations with different thermal conductivities to achieve the desired thermal inhibition function. The first case part uses materials with higher thermal conductivity for heat extraction, while the second case part uses materials with lower thermal conductivity for heat isolation.
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
This configuration allows for easier utilization of the heat stored in the oil by minimizing heat transfer to the upper parts of the case, thereby enhancing the thermal energy utilization.
Implementation Method 1
the heat transfer inhibiting section has higher thermal resistance than a portion of the case being located on an upper side with respect to and adjacent to the heat transfer inhibiting section
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
In a vehicular driving device (10), an oil storage section (26) in which oil is stored is formed in a lower part of a case (20), the case (20) includes a heat transfer inhibiting section (40) that is provided at a position in an up-down direction (Z) based on an oil level in the oil storage section (26) in such a way as to extend in a horizontal direction, and the heat transfer inhibiting section (40) has higher thermal resistance than a portion of the case (20) being located on an upper side (Z1) with respect to and adjacent to the heat transfer inhibiting section (40) or a portion of the case (20) being located on a lower side (Z2) with respect to and adjacent to the heat transfer inhibiting section (40).