Battery Cooling Structure With Protrusion Heat Sink
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Solution Overview
Problem
Existing battery cooling structures face challenges in ensuring effective cooling while minimizing the cost of the heat conduction member, as thin heat conduction sheets often result in gaps between the cooling surface and the heat sink, necessitating increased thickness to maintain cooling capability.
Innovation Solution
A battery cooling structure that incorporates insulating supporters between the battery and the heat sink, with a heat conduction member that contacts the protrusion heat transfer surface and supporter non-contact parts, reducing the thickness of the heat conduction member while maintaining cooling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the heat conduction sheet is made thin to reduce cost, then the cost of the heat conduction member is reduced, but a gap exists between the cooling surface and the cooling plate resulting in insufficient cooling capability
Solution Approach 1:
The protrusion formed on the cooling plate acts as an intermediary element that bridges the gap between the battery cooling surface and the heat conduction sheet. By extending toward the battery, the protrusion ensures direct contact or minimal gap between the heat conduction sheet and the cooling surface, enabling effective heat transfer even when using a thin heat conduction sheet, thus resolving the contradiction between reducing material quantity and maintaining cooling capability
Solution Approach 2:
The solution transitions from a planar heat conduction sheet configuration to a three-dimensional arrangement by incorporating a protrusion on the cooling plate. This dimensional change allows the heat conduction sheet to be positioned closer to the battery cooling surface vertically, eliminating gaps without increasing the sheet's thickness, thereby maintaining cooling effectiveness while using less material
2Reliability
If the heat conduction sheet is made thick to ensure cooling capability, then the cooling capability is maintained, but the cost of the heat conduction sheet increases
Solution Approach 1:
The protrusion on the cooling plate serves as a mediator that eliminates the need for a thick heat conduction sheet. By providing a structural extension that bridges the thermal path, the protrusion enables efficient heat transfer with a thin heat conduction sheet, thereby reducing material quantity and cost while maintaining cooling capability
Solution Approach 2:
The invention changes the geometric parameters of the cooling system by introducing a protrusion with specific height and dimensions. This parameter change allows the heat conduction sheet thickness to be reduced while compensating for the reduced thickness through the protrusion's geometry, optimizing the balance between material usage and thermal performance
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 ensures effective heat transfer from the battery to the heat sink, reducing the thickness and cost of the heat conduction member while maintaining cooling capability and improving insulation between the battery and the heat sink.
Implementation Method 1
a heat conduction member 40 which contacts with the protrusion heat transfer surface 55 and the supporter non-contact part 23
Implementation Method 2
a heat sink 50... The heat conduction member 40 contacts with the protrusion heat transfer surface 55 and the supporter non-contact part 23
Implementation Method 3
insulating supporters 30 which are provided between the battery 10 and the heat sink 50 and support the battery 10
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A battery cooling structure comprises a heat sink and a battery supporter arranged between the battery and the heat sink. The heat sink comprises a main body having a protrusion shaped to protrude from the main body toward a portion of the battery not in contact with the supporter. An electrically insulating heat conduction member is arranged between the heat sink protrusion and the portion of the battery not in contact with the supporter.