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

Starter armature: What is an armature?

Release Time：

2022-09-16

　　 Starter armature The 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, 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 the 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, that is, holders of magnets.

　　 The starter armature manufacturer states, 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.

　　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 consist of a fixed armature and a rotating magnetic field or a rotating armature and a fixed magnetic field. The pole shoes of permanent magnets or electromagnets and the moving iron part of the solenoid (especially when the latter is used as a switch or relay) can also be called an armature.

　　 The starter armature manufacturer states, In a DC motor, the main magnetic field is generated by the field coil. In both generation and motor modes, the armature carries current, establishing a magnetic field called armature flux. The effect of the armature flux on the main magnetic field is called armature reaction. Armature reaction:

　　1. Demagnetization

　　2. Cross magnetization of the main field.

Starter armature

10-09

2022

What are the components of a fuel pump armature?

In an automotive engine's electric fuel pump, the armature (also called the rotor) is a crucial component. Theoretically, a fuel pump's lifespan can reach thousands of hours; however, due to wear and tear, its actual lifespan is significantly reduced to only hundreds of hours. The primary cause of this reduced lifespan is the severe damage caused by fuel corrosion and other effects on the armature. A current market solution involves applying an insulating layer to the fuel pump armature using a spray coating process. Generally, the spray powder is applied to the armature shaft and metal sheets to form an injection-molded insulating layer, typically an epoxy resin layer created through electrostatic spraying. However, this structure presents significant safety hazards. Uneven thickness in the spray coating during the process may lead to high-voltage breakdown of the insulating layer. Furthermore, the spray powder may dissolve in methanol, ethanol, diesel, or other fuels, causing fuel pump failure. Therefore, the insulating layer of existing fuel pump armatures using spray coating technology cannot guarantee the safe operation of the fuel pump, and the lifespan remains too short. Fuel pump armatures are divided into two types: DC armature windings and AC armature windings. They are used for DC and AC respectively. The armature includes the armature core and the armature windings.

09-22

2022