Battery Pack Recessed Sealing Structure for High-Pressure Washing
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Solution Overview
Problem
Conventional sealing structures for battery packs are insufficient in preventing water ingress during high-pressure washing, compromising the sealing property.
Innovation Solution
A battery pack design featuring a recessed wall surface with a through hole and a pressure regulation valve, where the sealing component is inserted orthogonally and includes a connector electrically connected to the electrical component unit, enhancing the sealing property by reducing water entry and maintaining internal pressure control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional sealing structure is used, then the structure is simple, but the sealing property against high-pressure water impact is insufficient
Solution Approach 1:
The wall surface is segmented into multiple regions including a recessed portion and a flat portion, creating distinct functional zones that work together to protect against water impact while maintaining sealing effectiveness
Solution Approach 2:
The sealing component is configured to extend in multiple directions (first direction along the wall surface, second direction through the through-hole), creating a three-dimensional sealing structure that provides enhanced protection against high-pressure water from various angles
2Reliability
If a recessed wall surface with through-hole is created, then water impact resistance is improved, but manufacturing complexity increases
Solution Approach 1:
The recessed portion is pre-formed in the wall surface before final assembly, providing a prepared structure that guides the sealing component installation and ensures proper positioning, thereby simplifying the overall manufacturing process despite the added geometric complexity
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 prevents water ingress and maintains internal pressure control, ensuring the battery pack's reliability and performance even under high-pressure washing conditions.
Implementation Method 1
the sealing component includes a pressure regulation valve that is opened when an internal pressure of the inner space exceeds a predetermined value
Data Source
AI summary
A battery pack includes: a battery assembly including a plurality of battery cells arranged side by side in a first direction; a case provided with an inner space that accommodates the battery assembly and a wall surface that defines at least a portion of the inner space; and a sealing component that extends through the wall surface to reach the inner space, wherein the wall surface is provided with a recess recessed toward the inner space when viewed from an outer portion side of the case, and a through hole reaching the inner space is formed in a bottom portion of the recess and the sealing component seals the through hole.