Specializing in the design and manufacture of automotive motor armatures and stators.

How to choose a suitable brushless motor stator and rotor

Release Time：

2023-06-19

Brushless motor stators and rotors are indispensable components in fields such as power tools, robotics, and modeling. A good brushless motor stator and rotor can improve the efficiency and performance of the motor. When selecting a brushless motor stator and rotor, several key factors need to be considered to ensure it suits your application needs. This article will introduce how to choose a suitable brushless motor stator and rotor.

First, you need to understand the types of brushless motor stators and rotors. Currently, the most common types of brushless motor stators and rotors on the market are built-in and external types. Built-in brushless motor stators and rotors are suitable for applications with space constraints, while external brushless motor stators and rotors are suitable for applications requiring higher speeds and torque.

Secondly, the quality and materials of the brushless motor stator and rotor need to be considered. The materials of brushless motor stators and rotors are usually steel, chromium alloys, or nickel-cobalt alloys. High-quality materials can improve motor efficiency and durability. In addition, the quality of the brushless motor stator and rotor is equally important. Choosing a high-quality brushless motor stator and rotor can make your motor more efficient and reliable.

In addition, the size and shape of the brushless motor stator and rotor need to be considered. Choosing a brushless motor stator and rotor with a size and shape that suits your application needs can improve motor efficiency and stability. If you need high speed and torque, it is recommended to choose a smaller brushless motor stator and rotor. If you need higher efficiency and durability, you need to choose a larger brushless motor stator and rotor.

Finally, the price of the brushless motor stator and rotor needs to be considered. Although price is not the only consideration, it is an important factor. You need to choose a suitable brushless motor stator and rotor based on your application needs and budget.

In summary, choosing a suitable brushless motor stator and rotor requires considering the type, quality and material, size and shape, and price of the brushless motor stator and rotor. By choosing a suitable brushless motor stator and rotor, the efficiency and performance of the motor can be improved.

Brushless motor stator and rotor

01-03

2023

What are the structural hotspots of a starter armature?

The starter armature moves the entire armature through the magnetic force of the magnetic poles, causing the drive gear to mesh with the flywheel gear ring. The armature of the starter is offset from the magnetic pole by a certain distance under the action of the reset spring, and the commutator is relatively long. The starter housing is equipped with an electromagnetic switch. Its magnetizing coil is controlled by the starter switch S. The movable contact is the contact bridge. The upper end of the contact bridge is longer and the lower end is shorter, so the starter circuit can be connected in two stages. The starter has three magnetic field windings. Among them, the main magnetic field winding with fewer turns is made of flat copper bars, and the other two fine wire windings are the series auxiliary magnetic field winding and the parallel auxiliary magnetic field winding (also called the holding coil). The starter one-way clutch generally uses a friction plate clutch. The working process of the starter armature is divided into two stages. The series auxiliary excitation winding mainly works in the first stage, and in the second stage it is almost short-circuited due to being in parallel with the main excitation winding; the parallel auxiliary excitation winding works in both stages, which not only increases the magnetic force attracting the armature, but also limits the no-load speed. (1) Engagement When the starter switch S is turned on, the electromagnet generates suction to attract the contact bridge. However, because the pawl rests against the blank, the contact bridge can only close at the upper end, and the series and parallel auxiliary magnetic field winding circuits are turned on. The current circuit is:

12-21

2022

Starter armature: What is an armature?

The starter armature manufacturer states that motors play a key and crucial role in the process of achieving mutual conversion between mechanical energy and electrical energy. For generators, it is the component that generates electromotive force, such as the rotor in a DC generator and the stator in an AC generator; for motors, it is a component that generates electromagnetic force, such as the rotor in a DC motor. The starter armature manufacturer states that the armature is the relative motion of the coil relative to the magnetic field of the coil-carrying component in the motor. In a generator, an induced electromotive force is generated in a forced rotating coil to generate electricity. In a motor, the energized coil is subjected to Ampere force in the magnetic field, causing it to rotate in the magnetic field. In the mid-19th century, the term "armature" was early used for inductors, i.e., holders of magnets. Part of an alternator or related equipment can be represented by any mechanical or electrical aspect. Although these two sets of terms are clearly separated, they are often used interchangeably, or a combination of mechanical and electrical terms is included. This can cause confusion when using composite motors such as brushless alternators, or when talking to people accustomed to using different configurations of motors. The starter armature manufacturer states that in most generators, the field magnet is rotating and is part of the rotor, while the armature is stationary.

12-12

2022

Starter armature: armature knowledge points

The armature manufacturer states that the armature plays a key and crucial role in the process of converting mechanical energy and electrical energy into each other. For generators, it is the component that generates electromotive force, such as the rotor in a DC generator and the stator in an AC generator; for motors, it is a component that generates electromagnetic force, such as the rotor in a DC motor. The armature is the part of a motor that has coils, and the coils move relative to the magnetic field. In a generator, an induced electromotive force is generated in the forced rotating coil to generate electricity. In a motor, the energized coil is subjected to the Ampere force in the magnetic field, causing it to rotate in the magnetic field. The armature manufacturer states that in most generators, the field magnet is rotating and is part of the rotor, while the armature is stationary and is part of the stator. Motors and generators can be composed of a stationary armature and a rotating magnetic field or a rotating armature and a stationary magnetic field. The pole shoes and moving iron parts of permanent magnets or electromagnets and solenoids (especially when the latter are used as switches or relays) can also be called armatures. The armature manufacturer states that armatures are divided into two categories: DC armature windings and AC armature windings. They are used in DC motors and AC motors respectively. Including the armature core and the armature winding, the armature winding is the circuit part of the DC motor,

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