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Uses of magnets of different shapes

Sintered NdFeB magnets, as a new generation of magnets with higher performance and stronger magnetic force, must be very familiar to everyone. So, in neodymium magnets, what are the differences between magnets of various shapes? Today, I would like to introduce you to the differences and uses of magnets of different shapes.
1. Bar magnet
The magnetic force of the strip magnet is mainly at the two ends of the magnet, and the two sides of the magnet are weak. This type of magnet is the most common shape in our daily life and the most used shape in industrial production, such as the magnetic stickers of refrigerator doors, and linear motors. Under normal circumstances, according to the design, the square bar magnet can be plug-in assembly in the motor to be fixed around the stator to provide a magnetic field.
2. Horseshoe magnet
The horseshoe magnet is a representative U-shaped magnet. The U shape makes the magnetic poles point in the same direction, making the magnet stronger. Initially as a substitute for bar magnets, this shape has become a universal symbol for magnets. Magnets of this shape are mostly used in point magnets. Conductive windings that match the power are wound on the outside of the iron core. This current-carrying coil has magnetism like a magnet. It is also called an electromagnet. We usually make it into a strip or hoof shape to make the iron core easier to magnetize. In addition, in order to demagnetize the electromagnet immediately after power failure, we often use soft iron or silicon steel materials that demagnetize faster. Such an electromagnet has magnetism when it is energized, and the magnetism disappears after power is off. Electromagnets are extremely widely used in our daily lives. Because of its invention, the power of generators has been greatly improved.
3. Round magnet
The circular magnet is the earliest magnet shape used by humans. With the deepening of human understanding based on neodymium magnets, circular neodymium iron boron magnets have gradually come into everyone’s eyes and are gradually being used by people. They are currently widely used in various household appliances. Among them, the most common one at present is the horn, which is also the product closest to everyone’s life. It is mainly composed of a circular neodymium iron boron magnet and a copper coil. The coil generates a current, and the current generates a magnetic field and a circular neodymium iron boron magnet magnetic field. Interference to produce a variety of beautiful sounds, as well as transformers that are widely used today, in addition to the application of circular magnets in mobile phones or computers are necessary.
4. Spherical magnet
Spherical magnets are more often sold as toys and novel items. Using spherical magnets, you can use the poles of the magnet to design various shapes you want. If you want to develop children's imagination, spherical magnet toys must be your good choice.
5. Cylindrical magnet
This type of magnet is similar to a round magnet, except that the thickness is greater than the length of the diameter. It is usually radial magnetization. Of course, according to different designs and requirements, it can also be axial. It is suitable for applications in magnetic toys, some sensors and medical testing equipment.
6. Ring magnet
Ring magnets are very versatile. They are not only used in conventional electronic and electroacoustic products and motor products. At the same time, the designer will also design the pole direction of the magnet as a radial magnetic ring to replace the motor magnetic field composed of multiple sets of tiles. . Compared with a motor composed of multiple sets of tiles, a motor composed of a single radiating magnetic ring has lower cost and better performance.
7. Tile-shaped/arc-shaped magnet
Also called arc magnets, curved magnets are the most common permanent magnet motor magnets. This type of magnet is designed as a single arc or double arc according to needs, and is designed around the motor stator to provide a magnetic field. Commonly used in various permanent magnet DC motors.
8. Counterbore magnet
Speaking of this kind of magnet, you may feel very unfamiliar. For example, there are big screws on the children’s toys at home, which are similar to the joints of the robot arm. Although you think it should be easy to unscrew them, you can see them. Yes, but it’s really difficult to do it in practice. It feels like something is sucking. This is a special type of round counterbore magnet: screw-hole magnet. The funnel-shaped shape can prevent the flat surface from protruding after the screw is installed. This design is particularly protective and will not cause the magnet to be damaged so easily. It meets the user's vision from the aesthetic point of view, and satisfies the user's use from the safety point of view.
9. Special-shaped magnets
Special-shaped magnets are called special-shaped because their product shapes are not very conventional. Generally speaking, tile magnets and spherical magnets can be regarded as special-shaped magnets. The processing procedures of special-shaped magnets are also more complicated, and are mainly used in industrial products such as various machines, motors, and wind generators. Special-shaped magnets also have many advantages, such as high cost performance and good mechanical properties. Common special-shaped magnets include large and small magnets, T-shaped magnets, bevel magnets, semicircular magnets, concave and convex magnets, slotted magnets, etc.

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