0769-23388351

How can ferrite motors be designed to be more cost-effective?

Addtime:2022-01-14 14:29:48 Click:273

The key technology of ferrite motor design Compared with rare earth permanent magnet motors, ferrite permanent magnet motors have the advantages of high resistance to demagnetization (high temperature) and low cost, but the small residual magnetic density makes the air gap magnetic density of the motor low. Then there are problems such as insufficient permanent magnet torque. Therefore, how to solve the low torque density and save a lot of cost has become a key problem that must be faced.


There are two routes to solve the above problem. One is to obtain a larger air gap magnetic density by means of built-in permanent magnets or tangential magnetic flux. Because the magnetic flux of each pole of the motor is provided by two adjacent permanent magnets in parallel under this rotor magnetic circuit structure, the magnetic flux of each pole of the motor will increase. It makes up for the shortcoming of small remanence density of ferrite material, and belongs to IPM motor in motor classification.


Another route is to use the IPM rotor structure to increase the salient pole ratio of the motor, thereby increasing the reluctance torque of the motor, and using the reluctance torque of the motor to make up for the lack of the permanent magnet torque of the motor. In the classification of the motor, it belongs to the permanent magnet assisted synchronous reluctance motor. Below we list a few classic cases to talk about how ferrite motors can use these methods to improve performance.


This is a multi-layer U-shaped rotor structure, which can not only effectively improve the reluctance torque of the ferrite motor, but also add ferrite permanent magnets in the magnetic barrier gap of the rotor to form a permanent magnet auxiliary reluctance ferrite. body motor to further improve the output power and power density of the motor. At the same time, the system adopts a liquid cooling system and implements a spiral cavity aluminum casing, which can further improve the power density at the system level. In addition, at a higher level, the case uses ferrite motors in the form of rotor stacks, and a reasonable multi-layer arrangement increases torque and power density while better protecting them from faults such as high loads and three-phase short circuits. Effects of sudden demagnetization. And this case also uses a permanent magnet of the same size, which can further reduce the cost of ferrite.


The above information comes from the comprehensive network, our company is a supplier of ferrite magnetic tile (arc magnet), if you need to cooperate with the magnet quotation, please contact us for customization!


Related motor magnet products;

Motor Arc magnet          Multipole Magnets

Tags:
MAGNET PRODUCT RECOMMENDATION

High-performance 8 pole magnetized radial ring 75x51x35mm

This product is a high-performance 8-pole ring magnet with radial magnetization. The material is ferrite. It belongs to a ferrite multi-pole magnetized ring. The outer diameter of the magnet is 75mm, the inner diameter is 51mm, and the height is 35mm....

75x25mm Big Square Countersunk Strong Magnets M10 Hole

The sample is M10 countersunk hole square NdFeB magnet, the length and width are 75mm, thickness is 25mm, with strong magnetic strength, specializing in heavy industry, machinery and equipment, salvage, etc., welcome to bring quantities to consult the price....

N52 Grade Thin Rectangular Neo Magnet Sheet 8x1.7x0.6mm

Sample display is a N52 grade ultra-thin rectangular block neodymium magnet, length size 8mm, width 1.8mm, thickness is only 0.6mm, can be affixed with adhesive backing, scribing marking, although the size is small, but still has a certain degree of magnetism, suitable for use in a number of precision instruments, meters, handicrafts, toys....

4mm diameter ring powerful neodymium magnet D4 x 1.6 x 4mm

This is ring-shaped neodymium magnet with an outer diameter of 4mm, a thickness of 4mm, and a middle hole of 1.6mm. It is N48 grade, with a surface magnetic force of about 3900 Gauss. It is produced and photographed by the courage magnet manufacturer carrich. If you are interested in this product, please leave us a message or send us an email....

Small Diameter Cylindrical Magnet with Through Hole 2.5x1x4.8mm

Buy small hole radial magnet ring, high precision radial cylindrical magnet with small hole, welcome to contact Courageous Magnet Manufacturer, we have many customized cases, such as the one you see now, belongs to the motor radial magnet, outer diameter 2.5mm, center hole 1mm, height 4.8mm, N48H grade...

Rectangular neodymium pot magnets with countersink 20mm

This product is a rectangular pot magnet with a hole, usually a counterbore. It is used together with screws. There are one with one counterbore and two with two counterbore holes. It is suitable for fishing, lifting metal objects, kitchen and bathroom hooks, etc., rectangular Can magnet specifications are customized according to customer requirements. Please contact us for prices....

4 pole injection molded ferrite ring 41mm x 35mm x 24.5mm

Our company is a manufacturer of permanent magnets for electric motors, we can provide you with multi-pole ring magnets made of various materials, you are now browsing this is an injection molded ferrite ring, OD 41mm, hole 35mm, height 24.5mm, radial 4-polar magnetization, surface magnetic strength of 750 gauss or so, there are molds and samples, welcome to inquire about the price....

67mm dia x 9.5mm thick x 20mm hole ceramic pot magnet

This is a customized ceramic ferrite pot magnet for customers, which consists of galvanized iron shell + ring ferrite magnet, the size of the iron shell, the size of the magnetic ring and so on can be processed and customized according to your actual needs....

WHAT ARE YOU STILL HESITATING? CONTACT US NOW!

CONTACT NOW