Reactor End Plate Unevenness Absorbing Member
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Reactor designs with uneven iron core heights generate noise and vibration due to magnetostriction when energized, as clearances between the core body and the end plate or pedestal lead to magnetic plate displacement.
Innovation Solution
Incorporating an unevenness absorbing member between the end plate and the core body, and optionally between the core body and the pedestal, to absorb height unevenness of the iron cores, thereby eliminating clearances and reducing noise and vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If iron cores are formed by stacking magnetic plates with predetermined gaps, then the reactor structure is simple and easy to manufacture, but unevenness in iron core heights causes clearances between the core body and end plate/pedestal, generating noise and vibration during energization
Solution Approach 1:
A non-magnetic filler is introduced as an intermediary substance between the iron cores and the end plate/pedestal. This filler occupies the clearance spaces caused by height unevenness, preventing magnetic plates from contacting the end plate or pedestal during magnetostriction, thereby eliminating noise and vibration while maintaining the simple stacked structure of iron cores
Solution Approach 2:
The non-magnetic filler is placed in advance between the iron cores and the end plate/pedestal to cushion and absorb the dimensional variations caused by stacking unevenness. This pre-positioned filler prevents harmful contacts before they can occur during reactor operation
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 solution effectively suppresses noise and vibration by absorbing unevenness in the iron core heights, ensuring a stable magnetic environment during energization.
Implementation Method 1
an unevenness absorbing member arranged at least one of a region between the end plate and the core body and a region between the core body and the pedestal, for absorbing unevenness in heights of the at least three iron cores
Implementation Method 2
when the reactor is energized, since such a clearance is present, there is a problem in that noise and vibration are generated by the magnetic plates due to magnetostriction
Data Source
AI summary
A reactor includes a core body having at least three iron cores composed of a plurality of stacked magnetic plates and an end plate and a pedestal which are connected to the core body so as to interpose the core body therebetween. Gaps are formed between the at least three iron cores, through which magnetic connection can be established. An unevenness absorbing member is arranged at least one of a region between an end plate and the core body and a region between the core body and a pedestal, for absorbing unevenness in heights of the at least three iron cores in the axial direction of the core body.