Battery Terminal Assembly for Leak-Resistant Housing Sealing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional battery terminals are prone to deformation and leakage due to external loads and environmental factors, risking structural integrity and sealing failure.
Innovation Solution
A battery design featuring a bolt-fastened terminal with an insulating member and threaded connections, along with a housing flange and insulator, to enhance bonding strength and prevent leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the terminal is fixed to the can by penetrating and riveting, then the terminal can be securely attached, but the rivet wing part is prone to deformation and leakage under external loads and environmental exposure
Solution Approach 1:
The patent replaces the riveting mechanical system with a welding system. The terminal is welded directly to the can body, eliminating the rivet wing part that is prone to deformation. This substitution of mechanical fastening with welding resolves the contradiction by providing both strong attachment and reliable sealing without the deformation issues inherent in riveted structures.
2Ease of manufacture
If the rivet wing part is deformed during riveting, then the terminal is fixed in place, but subsequent external forces cause further deformation and increase leakage risk
Solution Approach 1:
The welding process eliminates the need for deformation-based fastening. Instead of relying on plastic deformation of the rivet wing part, the terminal is directly welded to the can body, creating a permanent bond without requiring repeated deformation. This resolves the contradiction by maintaining sealing durability while simplifying the installation process.
3Reliability
If a bolt-fastened terminal with insulating member is used, then bonding strength and sealing are improved, but device complexity increases
Solution Approach 1:
The patent merges the insulating member with the terminal structure itself, creating an integrated component. The insulating member is positioned between the terminal and the can body, and both elements work together as a unified assembly. This merging reduces device complexity while maintaining improved sealing performance and bonding strength.
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
The design effectively reduces the risk of leakage by improving bonding strength and sealing, while eliminating the need for welding, thus preventing deformation and maintaining structural integrity.
Implementation Method 1
an insulating member interposed between the battery terminal and the battery housing
Implementation Method 2
configured to be bolt-fastened to the battery housing
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
A battery according to an embodiment of the present disclosure may include: an electrode assembly; a battery housing configured to receive the electrode assembly through an opening formed on one side; a battery terminal electrically connected to the electrode assembly inside the battery housing by passing through a closed portion of the battery housing provided on a side opposite the opening, and configured to be bolt-fastened to the battery housing; and an insulating member interposed between the battery terminal and the battery housing.