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

Development trends of automotive motor armatures and the role of brushless motor stators and rotors

Release Time：

2023-09-08

Development Trends of Automotive Motor Armatures and the Role of Brushless Motor Stators and Rotors

The automotive industry has been continuously pursuing more efficient and environmentally friendly power systems. In this ever-changing environment, the development trends of automotive motor armatures have attracted widespread attention. Brushless motor stators and rotors, as an important technological innovation, are gradually playing an increasingly important role in automotive motors.

Brushless motor stators and rotors represent a new type of motor technology compared to traditional brushed motors. Compared with brushed motors, brushless motor stators and rotors have higher efficiency, lower noise, and longer service life. This makes them an important choice in the automotive industry.

Brushless motor stators and rotors mainly achieve power transmission through the rotation of the magnetic field. Unlike traditional brushed motors, the armature in brushless motor stators and rotors does not need to contact the stator through brushes, thus reducing energy loss and friction. This not only improves the efficiency of the motor but also reduces maintenance costs.

The role of brushless motor stators and rotors in automotive motors is mainly reflected in the following aspects:

1. Improve energy utilization efficiency: Brushless motor stators and rotors have higher energy conversion efficiency and can better convert electrical energy into mechanical energy. This makes the vehicle's power system more efficient and reduces energy waste.

2. Reduce noise and vibration: Since brushless motor stators and rotors do not require brushes to contact the stator, friction and noise generation are reduced. This makes the vehicle run more smoothly and quietly, providing a better riding experience for passengers.

3. Increase motor life: Brushless motor stators and rotors use more advanced technology, resulting in a longer motor life. This reduces motor replacement and maintenance costs, improving vehicle reliability and economy.

4. Adapt to the development of new energy: With the rapid development of new energy vehicles, brushless motor stators and rotors, as an efficient and reliable motor technology, are gradually being widely used in electric vehicles. Its high energy conversion efficiency and low energy loss make electric vehicles have a longer cruising range and stronger power.

In summary, brushless motor stators and rotors, as an important technological innovation in automotive motors, are gradually changing the development trend of the automotive industry. Their high efficiency, low noise, and long lifespan make them an important choice for future automotive power systems.

Brushless motor stator and rotor

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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