Reactor Outer Peripheral Iron Core Fastening via Radial Fixture
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Solution Overview
Problem
Reactor designs with central through-holes to secure outer peripheral iron cores result in shortened gap lengths, compromising magnetic flux and inductance, necessitating increased iron core width and size, which is undesirable.
Innovation Solution
A reactor design featuring a fixture that extends through the core body between the outer peripheral iron core and gaps to fasten adjacent iron cores, eliminating the need for a central through-hole and allowing for tighter fastening without increasing core size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a through-hole is formed in the center of the reactor to fasten the outer peripheral iron core, then the outer peripheral iron core can be firmly retained, but the gap length is shortened and inductance cannot be guaranteed
Solution Approach 1:
The fastening structure is moved from the central axial dimension to the radial dimension. The fixture extends radially from the outer peripheral iron core toward the center, fastening the iron cores at their radially inner ends without requiring a central through-hole. This dimensional shift preserves the magnetic path length while achieving secure fastening.
Solution Approach 2:
A fixture is introduced as an intermediary component between the outer peripheral iron core and the iron cores. This fixture serves as a mediator that transfers the fastening function from the center to the radial region, allowing secure retention of the outer peripheral iron core without compromising the gap length between iron cores.
2Reliability
If the gap length is increased radially outward to guarantee inductance, then inductance can be maintained, but the iron cores and outer peripheral iron core become larger
Solution Approach 1:
The fastening function is extracted from the central through-hole location and relocated to the radial region between the outer peripheral iron core and the gaps. This extraction allows the gap length to be maintained without increasing core width, as the fastening mechanism no longer occupies space in the magnetic path.
3Length of moving object
If the width of iron core is increased to extend gaps radially outward, then necessary gap length can be guaranteed, but the reactor size increases
Solution Approach 1:
The solution moves the gap extension from the radial dimension (which would increase core width) to the axial dimension. By maintaining adequate gap length in the axial direction and using a radial fixture for fastening, the core width remains unchanged while inductance requirements are met.
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
This design ensures adequate gap length without enlarging the reactor, maintaining inductance and preventing size increments, while allowing for efficient magnetic coupling and reduced magnetic field leakage.
Implementation Method 1
gaps, which can be magnetically coupled, are formed between one of the at least three iron cores and another iron core adjacent thereto
Data Source
AI summary
A core body of a reactor includes an outer peripheral iron core composed of a plurality of outer peripheral iron core portions, at least three iron cores coupled to inner surfaces of the plurality of outer peripheral iron core portions, and coils. Gaps, which can be magnetically coupled, are formed between one iron core and another iron core adjacent thereto. The reactor further includes a fixture which extends through the interior of the core body in a region between the outer peripheral iron core and the gaps to fasten opposite ends of the at least three iron cores to each other.