EV Battery Vent Sealing Nut With Integrated Seal Channel
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Solution Overview
Problem
Existing fasteners for securing battery vents in electric vehicles fail to effectively seal against water, dirt, and contaminants, leading to potential damage and performance issues.
Innovation Solution
A sealing nut design featuring a base with a fang and flange configuration that includes an interior channel for a seal, where the fang and flange extend axially from the base, forming a channel to compress a seal between the battery vent and the nut, providing a secure and watertight seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing fasteners are used to secure battery vents, then the battery vent can be attached to the battery cover, but the fasteners fail to effectively seal against water, dirt, and contaminants
Solution Approach 1:
The sealing nut is divided into distinct functional segments: the upper body for engagement, the base for structural support, the fang for mechanical interlocking, and the flange for sealing surface provision. This segmentation allows each component to perform its specific function optimally, with the seal member positioned in the channel between the fang and flange to create effective sealing against contaminants
Solution Approach 2:
A seal member is introduced as an intermediary element between the sealing nut and the battery vent. This seal member acts as a mediator that creates the actual sealing barrier against water and contaminants, while the fang and flange structures provide the mechanical means to compress and position the seal member effectively
2Reliability
If a sealing structure is added to the fastener, then sealing effectiveness improves, but the device complexity increases
Solution Approach 1:
The sealing function is merged with the fastening function in a single integrated sealing nut component. The upper body, base, fang, and flange are all part of one piece that simultaneously provides mechanical attachment and sealing capabilities, eliminating the need for separate fastener and seal components
Solution Approach 2:
The sealing nut performs multiple functions: the upper body engages with the battery vent, the base provides structural support, the fang creates mechanical interlocking, the flange provides the sealing surface, and the channel houses the seal member. This multi-functionality reduces the need for additional components while achieving effective sealing
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 sealing nut effectively secures the battery vent to the battery cover, preventing water and contaminants from entering while allowing pressure regulation, enhancing the durability and performance of electric vehicle battery packs.
Implementation Method 1
The seal can be configured to be compressed between a battery vent and an upper surface of the channel
Data Source
AI summary
A sealing nut for securing a battery vent to a battery cover includes an upper body, a base, a fang extending from the base in a direction opposite the upper body, a flange extending from the base in the direction opposite the upper body, and a channel formed between the fang and the flange. The channel extends annularly around the base and is configured to receive a seal member.