Battery Pack Cooling Plate Assembly With Uniform Adhesive Gap
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Solution Overview
Problem
The misalignment and inconsistent adhesive thickness between battery modules and liquid cooling plates in battery packs lead to uneven heat dissipation, affecting heat management efficiency and battery cycle life.
Innovation Solution
Incorporating first limiting members between the battery modules and liquid cooling plates to define a uniform adhesive gap, ensuring consistent thermal conductive adhesive thickness and uniform heat transfer, thereby enhancing heat dissipation uniformity and improving overall heat management efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If thermal conductive adhesive is coated between the liquid cooling plate and the battery module to improve heat transfer, then heat transfer effect is strengthened, but misalignment occurs causing inconsistent adhesive thickness and uneven heat dissipation
Solution Approach 1:
The patent introduces limiting members as intermediary elements between the battery module and liquid cooling plate. These limiting members serve as spacers that define a uniform adhesive gap, ensuring consistent adhesive thickness distribution. This mediator approach resolves the contradiction by providing a physical reference that guarantees uniform heat transfer while preventing misalignment during assembly.
Solution Approach 2:
The limiting members are pre-installed on the battery module before the liquid cooling plate is attached. This preliminary action establishes the correct positioning and adhesive gap thickness in advance, preventing misalignment issues during the final assembly. The pre-positioned limiting members ensure that when adhesive is applied, it distributes uniformly throughout the gap.
2Device complexity
If the liquid cooling plate is directly assembled to the battery module to simplify the assembly process, then assembly complexity is reduced, but misalignment occurs causing uneven heat dissipation and excessive localized temperature differentials
Solution Approach 1:
The limiting members act as intermediary components that facilitate proper alignment between the liquid cooling plate and battery module. Rather than requiring complex alignment procedures, the limiting members provide simple physical references that guide the assembly process. This adds minimal complexity to the assembly process while dramatically improving heat management reliability through uniform heat dissipation.
3Ease of manufacture
If adhesive thickness varies due to misalignment to reduce manufacturing complexity, then assembly is simpler, but heat dissipation uniformity deteriorates affecting battery cycle life
Solution Approach 1:
The limiting members serve as simple intermediary components that maintain uniform adhesive thickness without complicating the assembly process. These spacers are easily installed and provide a straightforward mechanism to ensure consistent heat transfer. The simplicity of using mechanical spacers versus achieving precise alignment through complex procedures makes this approach easier to manufacture while extending battery cycle life through improved thermal management.
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
Uniform adhesive thickness and consistent heat transfer across battery modules ensure more efficient heat dissipation, reducing temperature differences and extending battery cycle life.
Implementation Method 1
A layer of thermal conductive adhesive is coated between the liquid cooling plate and the bottom surface of the battery module, so as to strengthen a heat transfer effect
Data Source
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AI summary
The present disclosure relates to a battery pack (100). The battery pack (100) includes at least one battery module (10), a liquid cooling plate (20), the liquid cooling plate (20), and at least one first limiting member (30). The liquid cooling plate is arranged on a bottom surface of the at least one battery module (10). Each of the at least one first limiting member (30) is arranged between the liquid cooling plate (20) and a bottom surface of each of the at least one battery module (10), so that an adhesive gap (40) with a uniform thickness is defined between the liquid cooling plate (20) and the bottom surface of each of the at least one battery module (10). A thermal conductive adhesive is applied in the adhesive gap (40), and the liquid cooling plate (20) is in thermal communication with the at least one battery module (10) via the thermal conductive adhesive.