Electrical Device Mounting Structure for Resonance Suppression
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Solution Overview
Problem
Conventional mounting structures for electrical devices in battery electric vehicles experience increased resonance magnification and vibration due to anti-vibration bushes, leading to potential loosening of bolts and ineffective vibration reduction.
Innovation Solution
A mounting structure comprising first, second, and third support members fastened to the electrical device via bushes and bolts, with contraction directions crossing each other, to restrict movement and reduce resonance magnification, thereby minimizing vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If anti-vibration bushes are used to protect the electrical device from vibration loads, then the electrical device is protected from vibration, but resonance magnification increases in a specific frequency range causing increased vibration
Solution Approach 1:
The mounting structure divides the support function into multiple independent support members (first support member with first bushes, second support member with second bush, third support member with third bush) positioned at different locations and orientations. Each support member handles vibration independently, preventing resonance magnification that would occur with a single unified mounting point.
Solution Approach 2:
The invention transitions from conventional single-direction or planar mounting to three-dimensional distributed mounting. The first support member mounts to one end face, the second support member mounts to one side surface, and the third support member mounts to the other side surface, creating spatial distribution that eliminates resonance in specific frequency ranges.
2Object-affected harmful factors
If multiple support members are used to reduce resonance, then vibration is reduced, but the structure becomes more complex
Solution Approach 1:
Each support member serves multiple functions: mechanical support, vibration isolation through bushes, and resonance reduction. The same basic structure (support member + bush + bolt) is replicated three times at different locations, providing universal functionality while achieving complex vibration control objectives without requiring fundamentally different components.
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 structure effectively reduces vibration of electrical devices attached to a vibrating target device by preventing resonance magnification and suppressing bolt loosening, ensuring stable attachment.
Implementation Method 1
The mounting structure includes a first support member that is fastened to one end face in a longitudinal direction of the electrical device via a plurality of first bushes and a plurality of first bolts
Implementation Method 2
a first support member that is fastened to one end face in a longitudinal direction of the electrical device via a plurality of first bushes
Data Source
AI summary
A mounting structure for an electrical device of the present disclosure is for attaching an electrical device to a target device that is a source of vibration, and includes: a first support member that is fastened to one end face of the electrical device in the longitudinal direction via a plurality of first bushes and a plurality of first bolts, and is fixed to the target device; a second support member that is fastened to one of a pair of side surfaces of the electrical device extending in the longitudinal direction from the one end face via a second bush and a second bolt, and is fixed to the target device; and a third support member that is fastened to the other of the pair of side surfaces of the electrical device via a third bush and a third bolt, and is fixed to the target device.