Battery Module Heat Pipe Cooling Plate Assembly
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Solution Overview
Problem
Conventional air cooling systems for battery modules have low cooling efficiency due to narrow air channels, making it difficult to effectively dissipate heat generated by battery cells, which affects the operation performance and driving stability of devices.
Innovation Solution
A battery module assembly that incorporates a heat pipe in contact with the outer surface of the battery module, coupled with a cooling plate to efficiently transfer and dissipate heat, using a coolant that flows through fluid holes in the heat pipe and cooling channels in the plate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If air cooling system with narrow air channels is used, then device simplicity is maintained, but cooling efficiency deteriorates
Solution Approach 1:
A heat pipe is introduced as an intermediary component between the battery module and cooling plate. The heat pipe includes a vaporization chamber that contacts the battery module and a condensation chamber that contacts the cooling plate, mediating heat transfer through phase change of working fluid. This resolves the contradiction by providing efficient heat transfer without requiring complex direct cooling structures.
Solution Approach 2:
The heat pipe utilizes phase transitions of working fluid (evaporation and condensation) to transfer heat from the battery module through the insulation layer to the cooling plate. The vaporization chamber heats the working fluid which then condenses in the condensation chamber, providing efficient thermal conduction through phase change rather than relying on narrow air channels.
2Ease of manufacture
If battery cells are stacked with gaps for air cooling, then manufacturing ease is improved, but cooling performance deteriorates
Solution Approach 1:
The heat pipe acts as an intermediary that contacts the battery module outer surface and transfers heat through the insulation layer to the cooling plate. This maintains the stacked battery configuration for ease of manufacture while providing reliable heat dissipation through the heat pipe's phase change mechanism, resolving the contradiction between manufacturing simplicity and cooling reliability.
3Device complexity
If only gap-based cooling is used, then device complexity is reduced, but heat dissipation capability deteriorates
Solution Approach 1:
The heat pipe serves as a mediator between the battery module and cooling plate, enabling effective heat dissipation without increasing overall system complexity. The heat pipe's vaporization and condensation chambers provide high heat transfer capability while maintaining a relatively simple structural integration with the existing battery module and cooling plate.
Solution Approach 2:
Phase transitions of the working fluid within the heat pipe provide enhanced heat dissipation capability compared to conventional air cooling. The evaporation and condensation processes efficiently transfer heat from the battery module through the insulation layer to the cooling plate, significantly improving power dissipation without complex system architecture.
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 solution significantly improves heat dissipation efficiency, enhancing the operation performance and driving stability of devices by effectively transferring heat from the battery cells to the cooling plate via a closed-loop water cooling system.
Implementation Method 1
a heat pipe including a coupling portion that is in contact with and coupled to a side surface of the battery module, and a cooling portion that extends from the coupling portion and protrudes outward from the side surface of the battery module
Implementation Method 2
Coolant may flow through the heat pipe, and heat generated by the battery module may be transferred to the cooling portion through phase transitions of the coolant
Implementation Method 3
a cooling plate having a first main surface that is in contact with and coupled to the cooling portion of the heat pipe, and a second main surface in which a cooling channel is formed
Data Source
AI summary
A battery module assembly according to one embodiment of the present invention includes: a heat pipe having a battery module in which a plurality of battery cells are stacked in one direction, a coupling part which is in contact with and coupled to the side surface part of the battery module, and a cooling part which extends from the coupling part so as to project away from the battery module; and a cooling plate, one surface of which is in contact with and coupled to the cooling part of the heat pipe. A cooling passage may be formed on the other surface of the cooling plate. According to the present invention, heat generated from the battery module including the battery cell can be cooled effectively.