Reactor Inductance Adjustment via Holding Member Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing reactors face challenges in accurately adjusting inductance due to difficulties in aligning divided core pieces, especially when an air gap is present, leading to inconsistent magnetic properties.
Innovation Solution
A reactor design featuring an annular magnetic core, divided reactors arranged in parallel, and a holding member that allows for easy adjustment of inductance by fixing the attachment positions of the divided reactors, which can include attachment portions and engagement portions to prevent displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If divided core pieces are combined inside the coil, then the reactor can be assembled, but accurate alignment of the divided core pieces becomes difficult leading to inability to obtain desired inductance
Solution Approach 1:
The holding member is designed to preliminarily fix the divided core pieces at their correct positions and spacing before the coil is assembled around them. This preliminary positioning action eliminates the alignment difficulty that would occur if assembly were performed inside the completed coil, allowing both easy assembly and high precision to be achieved.
2Adaptability or versatility
If an air gap is provided between the divided core pieces, then magnetic properties can be adjusted, but alignment at appropriate spacing becomes extremely difficult
Solution Approach 1:
The holding member acts as an intermediary component that physically maintains the predetermined spacing between divided core pieces with air gaps. This intermediary structure makes the air gap configuration manageable by providing mechanical support and precise positioning, enabling both magnetic property adjustment and high spacing precision.
3Volume of moving object
If divided core pieces are aligned inside the coil, then the reactor structure is compact, but the alignment process becomes extremely difficult especially with air gaps
Solution Approach 1:
The holding member performs the alignment operation preliminarily, before the coil is assembled. This reverses the traditional sequence where alignment would be attempted inside the completed coil. By performing alignment first and then assembling the coil around the pre-aligned core pieces, the reactor achieves compactness while the alignment operation becomes simple and precise.
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
Enables straightforward adjustment of inductance and maintains desired magnetic properties, allowing for various magnetic configurations without altering the reactor's configuration, even with air gaps.
Implementation Method 1
an annular magnetic core (3) that forms a closed magnetic circuit when the coil (2) is excited
Data Source
AI summary
A reactor includes a coil, an annular magnetic core that forms a closed magnetic circuit when the coil is excited, a plurality of divided reactors arranged in parallel, and a holding member that holds the plurality of divided reactors in a state in which the divided reactors are arranged in parallel at a predetermined spacing. Each of the divided reactors includes a coil unit that is formed of a wound wire and constitutes a part of the coil and a core unit that passes through the coil unit from one end of the coil unit to the other end and constitutes a part of the magnetic core. The core unit has an inner core portion inserted through the coil unit, and outer core portions that protrude from both ends of the coil unit and extend in a direction that intersects the inner core portion.