We moved to Kumagaya area in 2018, in order to have a closer collaboration with our production factory. We will fulfill our expected rolls as the pioneer of the permanent magnet development, utilizing our powder metallurgy material technology, magnetic circuit design and analyze technology.
To make the best use of a permanent magnet fully enough, an optimum design of magnetic circuit must be necessary, and one should be skilled with the characteristics etc. of designing of magnetic circuit technique and a permanent magnet for that.
An analysis accounting for the eddy currents is also possible by specifying the electric conductivity of the conductors to handle phenomena produced by eddy currents in conductors while including the effects of eddy currents in the magnetic circuit method is difficult because the distributions cannot be calculated.
For magnetic circuit confirmation, it is the most basic usage method for FEA, but seeing the flow of magnetic flux line density contour plots and flows of magnetic flux lines means that one is visualizing the magnetic circuit itself and confirming it.
The magnetic flux in the magnetic circuit which consists of the permanent magnetic, detection gear and internal gear teeth, is changed by the rotating detection gear mounted on the shaft. And then the detection coil generates the inductive voltage proportional to the frequency variation.
When driving a larger diaphragm, in order to avoid air within the enclosure acting like a strong spring to stop the movement of the diaphragm, the vibration system is made heavier and the magnetic circuit larger to reduce the spring-like effects of the air pressure to a negligible level, a mechanism that allows the low-frequency reproduction limit to be lowered even further.
For example, conventionally we have considered how combustible energy and electric energy can be mixed using two motors and gears; however, we now think about integrating the functionality of gears and motors and consider things like"If we configure the magnetic circuits this way, we can make this possible.
The motor has been designed with a structure that fully utilizes the rotor's external diameter and effective maximization of the magnet cubic content in mind, and high-performance magnet manufacturing technology has been combined with proven DC brush contact point technology and magnetic circuit design techniques, to develop a DC brush motor with double the torque relative to motor cubic content compared with existing motors.
The three major advantages we have over our competitors are: our high-quality aluminum windings made possible with specialized coil winding machines developed in-house, our magnetic circuits using ferrite magnets instead of rare earth without compromising on performance, and our propriety"straight core" manufacturing method that allows for efficient use of electric steel while also contributing to lower assembly costs.
Forecasting vibration JSOL Motor designers who have accumulated a certain amount of experience can look at a magnetic circuit, picture the magnetic flux flow, and judge the design's good and bad points. Can a vibration engineer look at a structure and tell which parts will probably produce vibration and noise?
型磁気回路。
Halbach- type magnetic circuit.
閉鎖した磁気回路。
Closed magnetic circuit.
磁気回路の構造。
Magnetic Circuit Structure.
磁気回路のタイプ内部の磁石。
Magnetic circuit type inner magnet.
磁気回路解析(FEAのシミュレーション)。
Magnetic circuit analysis(FEA Simulation).
閉鎖した磁気回路は混線を避けます。
Closed magnetic circuit avoids crosstalk.
無励磁(吸着時)の磁気回路。
Magnetic circuit at non-excitation(HOLD).
電気回路と磁気回路:類似点と相違点。
Electric circuit and Magnetic circuit: Similarities and Dissimilarities.
マグネットを含む磁気回路の構造、マグネットの固定方法。
Structure of magnetic circuit including the magnets, securing method of the magnets.
世界最大のハルバック型磁気回路を開発(2008年4月8日)。
Development of world's largest Halbach-type magnetic circuit(April 8, 2008).
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