Electronic Component Box Attachment With Sliding Damping Structure
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Solution Overview
Problem
Conventional electronic component accommodation boxes in hybrid vehicles experience vibration transmission issues due to the operation of high voltage relays, which can cause discomfort for passengers and potentially harm the mounted electronic components through relative movement with the vehicle body.
Innovation Solution
An attachment structure incorporating a vibration proof structure with an elastic vibration proof member and a damping structure featuring sliding portions and a damping member that generates sliding resistance between these portions, reducing vibration transmission and relative movement between the casing and the vehicle body side attachment member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a vibration proof structure is provided between the casing and the vehicle body to suppress vibration transmission, then the operation sound is suppressed and passenger comfort is improved, but the electronic component accommodation box can move relative to the vehicle body which may adversely influence the mounted electronic components
Solution Approach 1:
The attachment structure is divided into two independent functional parts: a vibration proof structure with elastic vibration proof members to suppress vibration transmission, and a damping structure with damping members to prevent excessive relative movement. This segmentation allows each structure to perform its specific function without interfering with the other, resolving the contradiction between vibration suppression and component stability.
Solution Approach 2:
The damping structure acts as an intermediary mechanism between the vibration proof structure and the electronic components. It provides a controlled connection that allows minimal movement while preventing excessive displacement, thereby protecting the electronic components from adverse influences while maintaining the vibration proof structure's effectiveness.
2Reliability
If the electronic component accommodation box is rigidly fixed to the vehicle body, then the electronic components are protected from relative movement, but the vibration generated by the high voltage relay is transmitted to the vehicle body and heard by passengers
Solution Approach 1:
The attachment structure is divided into two independent functional parts: a vibration proof structure with elastic vibration proof members to suppress vibration transmission, and a damping structure with damping members to prevent excessive relative movement. This segmentation allows each structure to perform its specific function without interfering with the other, resolving the contradiction between vibration suppression and component stability.
Solution Approach 2:
Different parts of the attachment structure have different properties: the vibration proof structure uses elastic materials to absorb vibration, while the damping structure provides controlled resistance to movement. This local differentiation of properties allows the system to simultaneously achieve vibration isolation and component stability.
3Object-affected harmful factors
If only a vibration damping rubber is used between the electronic component accommodation box and the vehicle body, then vibration transmission is suppressed, but the relative movement of the box becomes uncontrolled which may harm the electronic components
Solution Approach 1:
The attachment structure is divided into two independent functional parts: a vibration proof structure with elastic vibration proof members to suppress vibration transmission, and a damping structure with damping members to prevent excessive relative movement. This segmentation allows each structure to perform its specific function without interfering with the other, resolving the contradiction between vibration suppression and component stability.
Solution Approach 2:
The vibration proof structure and damping structure are combined into a single integrated attachment system. This merging allows the system to simultaneously achieve vibration isolation through the elastic members and movement control through the damping members, providing comprehensive protection for the electronic 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 proposed attachment structure effectively suppresses vibration transmission and relative movement, minimizing the adverse impact on electronic components and enhancing the stability of the electronic component accommodation box.
Implementation Method 1
the vibration proof structure includes an elastic vibration proof member, the vibration proof member is attached to the casing and supports a load of the casing with respect to the vehicle body side attachment member
Implementation Method 2
the damping member generates sliding resistance between the first sliding portion and the second sliding portion when the casing moves relative to the vehicle body side attachment member
Data Source
AI summary
An attachment structure for an electronic component accommodation box including a vibration proof structure includes a damping structure between a vehicle body side attachment member and a casing in which at least one electronic component is mounted. The damping structure includes first sliding portions, second sliding portions, and damping members interposed between the first sliding portions and the second sliding portions. The damping members generate sliding resistance between each of the first sliding portions and each of the second sliding portions when the casing moves relative to the vehicle body side attachment member.