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

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Dry goods sharing: understand the starter armature in one minute

Release Time:

2023-04-20

   Starter Armature It is one of the crucial components of a car engine, responsible for starting the engine. So, what are its characteristics? First, structurally, the starter armature is usually composed of many windings made of high-conductivity metal materials. This structural design allows the starter armature to efficiently conduct current, enabling the engine to start quickly.

  In addition, according to professionals, another characteristic of the starter armature is its ability to withstand high-temperature and high-current operating environments. At the moment the car engine starts, the armature will withstand currents as high as hundreds of amperes and temperatures of several hundred degrees. Therefore, the armature material must be strong enough to withstand such high temperatures and high currents.

  In addition, the starter armature also features quick start, high efficiency, and low noise, making it an important component for the normal starting of a car engine.

  In short, although its role in the car engine seems insignificant, the starter armature undertakes the important task of starting the engine and has many unique features, providing a guarantee for the smooth operation of the car engine.

  The starter armature is an important component in the car engine system. Its function is to start the car by rotating the crankshaft when the engine starts. What is the technological principle of the starter armature? This will be introduced in detail below.

  The starter armature is composed of several coils of wire, with an iron core wrapped around the coils. The iron core has slots for inserting the rotor gear. The manufacturing process of the starter armature begins with the production of the coils, using copper wire of a specific specification, which is wound onto a mold by a winding machine to form coils of a specific size. Then, the coils are assembled onto the iron core, and the coils are connected to the electrodes by electrode welding. After baking, polishing, and other processing, the manufacturing of the starter armature is finally completed.

  To ensure the quality of the starter armature, it must undergo rigorous testing after manufacturing. The testing methods for the starter armature include electrostatic testing, insulation testing, and electrical performance testing, among other steps. Only after all test results are qualified can it be used in the car engine system.

  When using the starter armature, regular maintenance is necessary. Especially during winter use, due to low temperatures and high humidity, the armature is prone to dampness and aging, so it needs to be regularly disassembled, cleaned, and lubricated. At the same time, it is also necessary to regularly check the wiring to avoid poor contact and disconnection failures.

  Various failures may occur in the starter armature during use, such as short circuits in the armature windings, iron core wear, poor electrode contact, and rotor gear wear. These failures require appropriate handling methods, such as replacing coils, repairing the iron core, cleaning the connectors, and replacing gears.

  In short, the technological principle of the starter armature is to convert the magnetic field into rotational force through the circuit, thereby starting the car engine. During use, regular maintenance is required to prevent failures from affecting the use effect.


Starter armature

02-09

2023

Introduction to the role of the stator and rotor in a brushless motor - collect this information!

The stator and rotor of a brushless motor consist of permanent magnets with a certain number of magnetic poles embedded in or on the surface of the iron core. Most permanent magnets are made of rare-earth permanent magnet materials with high coercivity, such as neodymium, iron, and boron, and high magnetic permeability and magnetic induction density. The rotor magnets are similar to those in brushed motors; both produce a sufficient magnetic field in the air gap of the motor. The difference is that the permanent magnets in brushed motors are mounted on the rotor, while those in brushless DC motors are mounted on the stator. The rotor system structure of brushless DC motors often adopts different surface-mounted magnets, also known as tile magnets, with radially magnetized tile-type permanent magnets bonded to the outer surface of the iron core. Through reasonable design, a square-wave air gap magnetic flux density can be obtained. What is the injection molding process for the stator and rotor of a brushless motor? Metal inserts are placed in the mold, and then BMC plastic is injected and heated to 160 degrees. The power of the motor should be selected according to the power required by the equipment, so that the motor operates under rated load as much as possible. Two points should be noted when selecting: (1) If the motor power is too small, a "small horse pulling a large cart" phenomenon will occur, causing the motor to be overloaded for a long time and damaging it.

01-30

2023

What are the components of a starter motor armature?

The control device of the starter armature includes an electromagnetic switch, a starter relay, and an ignition start switch, etc., among which the electromagnetic switch is made together with the starter armature. I. Electromagnetic switch 1. Structural characteristics of electromagnetic switch The electromagnetic switch is mainly composed of an electromagnetic iron mechanism and a motor switch. The electromagnetic iron mechanism is composed of a fixed iron core, a moving iron core, an attracting coil, and a holding coil. The fixed iron core is fixed, and the movable iron core can move axially in the copper sleeve. The front end of the movable iron core is fixed with a push rod, and the front end of the push rod is provided with a switch contact plate. The rear end of the movable iron core is connected to the fork through an adjusting screw and a connecting pin. The reset spring is arranged outside the copper sleeve to reset the movable parts, such as the movable iron core. 2. Working principle of electromagnetic switch When the directions of the magnetic fluxes generated by energizing the attracting coil and the coil are the same, their electromagnetic attractions overlap each other, and the moving iron core can be attracted to move forward. The pad at the front end of the push rod until the electrical switch contacts are connected to the motor main circuit. When the magnetic pain caused by the energization of the attracting coil and the coil is in the opposite direction, their electromagnetic attractions cancel each other out. Under the action of the reset spring, the movable iron core and other movable parts automatically reset, the pads and contacts are disconnected, and the motor main circuit is disconnected. II. Starting relay

01-10

2023

What is the manufacturing method for the starter armature structure?

The starter armature structure can increase the energization time of the starter and avoid the problem of short circuit caused by the ablation of the copper wire winding after the armature is energized for a long time, thus ensuring the safety of the circuit. The starter armature structure includes an armature shaft, an armature winding, an iron core and a commutator. The armature winding includes an end winding i arranged away from the commutator. The end winding i is provided with a U-shaped portion, and the U-shaped portion is provided with an insulating sleeve. The melting point of the insulating sleeve is higher than 200 ℃. The iron core is fitted on the armature shaft, and the iron core is provided with a winding slot i, and the armature winding is embedded in the winding slot i. An insulating piece i is set in the winding slot i to isolate the armature winding from the iron core and the edges of the components of the armature winding. The insulating piece i has an S-shape structure to wrap the edges of the components of the armature winding. The commutator is fitted on the armature shaft and is arranged near the end of the armature shaft. The commutator is provided with a winding slot ii. The armature winding also includes an end winding ii, which is arranged near the commutator and embedded in the winding slot ii. The end winding ii is composed of an inner ring layer and an outer ring layer, and an insulating element ii is arranged between the inner ring layer and the outer ring layer to isolate the inner ring layer and the outer ring layer. The clamping ring is also fitted at a position corresponding to the winding slot ii on the commutator. The insulating sleeve is made of glass fiber. Compared with the existing technology, this invention

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