Battery Pack Insulator Adhesive Structure for Module Disassembly
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Solution Overview
Problem
Existing battery modules in battery packs face difficulties in disassembly due to adhesive removal issues, affecting disassembly efficiency and module replacement.
Innovation Solution
A battery pack design incorporating a thermally conductive adhesive formed by curing a flowable material within a space in an insulator, allowing for easy disassembly without damaging the adhesive, and including a heating apparatus for temperature control and safety enhancement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If adhesive is used to bond the battery module to the housing, then the battery module is firmly fixed and vibration resistance is improved, but disassembly becomes difficult and adhesive removal is problematic
Solution Approach 1:
The bonding system is segmented into two distinct parts: a removable adhesive layer bonding the battery module to the insulator, and a non-removable structural adhesive bonding the insulator to the housing. This segmentation allows the battery module to be disassembled from the insulator without destroying the structural adhesive, solving the contradiction between firm fixation and easy disassembly.
Solution Approach 2:
The insulator serves as an intermediary component between the battery module and the housing. It provides a bonding surface for the removable adhesive while being structurally integrated to the housing via non-removable adhesive, enabling easy module replacement while maintaining overall structural integrity.
2Temperature
If thermally conductive adhesive is used to bond the battery module, then heat dissipation is improved, but the adhesive may interfere with disassembly processes
Solution Approach 1:
The bonding adhesive is segmented into functional layers: a thermally conductive removable adhesive layer for heat dissipation and bonding, and a structural non-removable adhesive layer for permanent fixation. This allows the thermally conductive adhesive to perform its heat transfer function while being easily removable for disassembly.
Solution Approach 2:
The removable adhesive serves multiple functions: it provides thermal conduction for heat dissipation, enables bonding between components, and allows easy removal for disassembly. This multi-functionality resolves the contradiction between heat dissipation performance and disassembly ease.
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
Improves heat dissipation, vibration resistance, temperature uniformity, and disassembly efficiency, while reducing the risk of lithium plating and enhancing safety through efficient heat transfer and temperature management.
Implementation Method 1
the thermally conductive adhesive plays a role in transferring heat away from the battery module
Implementation Method 2
the thermally conductive adhesive is configured to be formed by curing a flowable thermally conductive material injected into the first space
Implementation Method 3
the heating apparatus is capable of warming and heating the battery pack in a low-temperature operation condition
Data Source
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AI summary
A battery pack(100) includes a housing(10), a battery module(20), an insulator(30), and a thermally conductive adhesive(40). The insulator(30) is provided with a first space(30a), at least a portion of the battery module(20) is accommodated in the first space(30a), and both the insulator(30) and the battery module(20) are disposed in the housing(10). The thermally conductive adhesive(40) is disposed in the first space(30a), the thermally conductive adhesive(40) is formed by curing a flowable thermally conductive material injected into the first space(30a), and the thermally conductive adhesive(40) is connected to the insulator(30) and the battery module(20).