Electronic Component Assembly Vibration Suppression
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Solution Overview
Problem
Electronic components in mobile vehicles, such as automobiles, experience vibration issues due to the separation of the relay body's center of gravity and the spring portion supporting it, leading to increased burden on the terminal fitting and potential structural complexity and cost.
Innovation Solution
An electronic component assembly structure with a rectangular parallelepiped component main body and lead terminals extending along the side surface, housed in a member with a first chamber guiding the component and a second chamber holding the terminal fitting, where the spring portion faces the component main body, reducing the distance between the center of gravity and the spring portion, and incorporating a locking protrusion for heat dissipation and vibration suppression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the relay body and spring portion are disposed separately in the assembly direction to accommodate components, then the electronic component functions are achieved, but the vibration burden on the terminal fitting increases
Solution Approach 1:
The patent repositions the spring portion from a vertically separated location to a location adjacent to the relay body in the same housing chamber, changing the spatial dimension of support. This allows the spring portion to be positioned closer to the relay body's center of gravity while still providing support, thereby reducing vibration burden without compromising component accommodation functionality
Solution Approach 2:
The patent introduces a holding member as an intermediary structure that simultaneously supports both the relay body and the terminal fitting with the spring portion. This intermediary structure enables the spring portion to be positioned adjacent to the relay body while maintaining proper support functions, resolving the contradiction between component accommodation and vibration resistance
2Reliability
If the holding force of the terminal fitting is increased to prevent relay vibration, then the vibration resistance improves, but the terminal fitting or holding member size increases
Solution Approach 1:
The patent positions the spring portion adjacent to the relay body in advance, before vibration occurs. This preliminary positioning allows the spring portion to provide support at the optimal location, reducing the need for excessive holding force and preventing the need for larger terminal fitting dimensions
Solution Approach 2:
The holding member acts as an intermediary that distributes and optimizes the holding force, allowing the spring portion to provide adequate vibration resistance without requiring the terminal fitting itself to be oversized
3Reliability
If another member is provided to hold the relay body to prevent vibration, then the vibration resistance improves, but the structure becomes complex and component cost increases
Solution Approach 1:
The patent merges the functions of supporting the relay body and providing vibration resistance into the existing terminal fitting and spring portion structure. By repositioning the spring portion adjacent to the relay body, the patent eliminates the need for separate vibration-damping members, thereby maintaining structural simplicity while achieving vibration resistance
Solution Approach 2:
The spring portion is given multiple functions: it provides both the holding force for the relay body and the vibration resistance. This multi-functional approach eliminates the need for additional dedicated vibration-damping components, reducing structural 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
Effectively suppresses vibration and reduces the burden on the terminal fitting while maintaining the electronic component's function, without increasing the size of the terminal fitting or housing member, and prevents heat accumulation and electric shocks.
Implementation Method 1
the terminal fitting includes a spring portion which presses the connection portion connected to the terminal fitting
Data Source
AI summary
An electronic component including a lead terminal is inserted into a housing member, and the lead terminal is fitted to a terminal fitting held by the housing member, so that the electronic component is assembled to the housing member. The lead terminal includes a connection portion which is continuous to a base end and is suspended along a side surface of a component main body. The housing member includes a first housing chamber which accommodates the component main body and a second housing chamber which holds the terminal fitting, the first housing chamber is surrounded by a frame-shaped wall portion. The terminal fitting is disposed so as to face the side surface of the component main body, in which a spring portion pressing the connection portion is accommodated in the first housing chamber, with the wall portion interposed therebetween.