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

Han Hua Electric Equipment Union wins first prize in Liaoning Provincial Federation of Trade Unions' rationalization suggestion selection

Release Time：

2022-02-22

　　On June 22, a group of 13 leaders, including Inspector Yan Wanda from the Provincial Federation of Trade Unions, Chairman and Standing Committee Member of the Municipal Federation of Trade Unions Zhao Jing, Secretary of Binhai New Area Yang Lin, Deputy Director Yang Xu from the Provincial Federation's Research Office, Deputy Minister Yang Ren from the Provincial Federation's Department of Economics and Technology, Deputy Editor-in-Chief Yang Lihua from the Contemporary Workers Magazine, Vice Chairman Zuo Liya from the Municipal Federation of Trade Unions, Member of the Standing Committee and Head of the Economic Auditing Committee He Yougang from the Municipal Federation of Trade Unions, Section Chief Guan Feng from the Provincial Federation's Department of Economics and Technology, and Chairman Kumamoto from Binhai New Area, visited Han Hua Electric Fitting Company for the provincial top ten rationalization suggestions commendation and high-skilled talent research.
　　The commendation mainly focused on the "Provincial Top Ten Rationalization Proposals and Excellent Proposals" selection activity organized by the Provincial Federation of Trade Unions in 2015. Han Hua Electric Fitting Union's entry, "Suggestions on the Rationalization of Electroplating," won first place in Liaoning Province. The Provincial Federation of Trade Unions, the Municipal Federation of Trade Unions, and the Binhai New Area Trade Union each awarded a prize of 10,000 yuan. Inspector Yan Wanda, Chairman and Standing Committee Member Zhao Jing, and Secretary Yang Lin presented the award on-site and commended and encouraged the Han Hua Electric Fitting Company's trade union work.
　　In addition, General Manager Ma and the head of the Human Resources department of Han Hua Electric Fitting Company held a research meeting on high-skilled talent with the provincial and municipal federations of trade unions.

Han Hua Electric Fitting Union wins first prize in Liaoning Provincial Federation of Trade Unions' rationalization suggestion selection

03-13

2023

How to properly test a starter armature? Maintenance tips for starter armatures

The starter armature is a key component in the process of converting battery energy into mechanical energy during car starting. It consists of numerous small parts. Due to its complex structure and working environment, its maintenance is relatively complex and requires correct detection to ensure its normal operation and long lifespan. I. Correct methods for detecting the starter armature 1. Check the appearance of the starter armature to ensure that its rotating parts are not worn or deformed, the cable connectors are not damaged, the terminals are not discolored, the armature insulator is not damaged, and there is no abnormal temperature rise in the armature body. 2. Use a professional testing instrument to check its internal circuit to ensure that its resistance value has not changed, the insulation is not damaged, the brush bristles are not shortened, the contact surface of the carbon brush is not discolored, and the armature structure is not deformed. 3. Based on the test results, if problems are found with the starter armature, a new armature should be replaced promptly to ensure that the car can start normally, avoid engine damage, and prevent unnecessary repair costs. II. Starter armature maintenance 1. Regularly check the starter armature, especially after the car has been parked for a long time. Check the armature status promptly, and replace it with a new one if there are any abnormalities. 2. When the car is running, regularly check the engine

03-01

2023

Get to know brushless DC motor stators and rotors in one minute

The stator and rotor of a brushless motor are components of the motor. The two components can coordinate with each other through the action of the magnetic coil to convert electromagnetic energy information into mechanical energy. Simply put, the stator and rotor of a brushless motor are the rotating parts of the motor. Brushless DC motors use semiconductor switching devices to achieve electronic commutation, i.e., electronic switching devices replace traditional contact commutators and brushes. They have advantages such as high reliability, no commutation sparks, and low mechanical noise, and are widely used in high-end tape recorders, video recorders, electronic instruments, and automated office equipment. A brushless DC motor consists of a permanent magnet rotor, a multi-pole winding stator, and a position sensor. The position sensor detects the change in rotor position and switches the current in the stator windings in a certain order (i.e., it detects the position of the rotor magnetic pole relative to the stator windings and generates a position sensing signal at a specific position. After processing by the signal conversion circuit, it controls the power switching circuit and switches the winding current according to a certain logical relationship). The working voltage of the stator winding is provided by the electronic switching circuit controlled by the position sensor output. There are three types of brushless motor stator and rotor position sensors: photoelectric, magnetoresistive, and electromagnetic. In brushless DC motors using magnetoresistive position sensors, the magnetoresistive sensor components (

02-20

2023

How to check the condition of a brushless motor stator and rotor?

The stator and rotor of a brushless motor are important components of motors such as generators and starters. The stator is an important part of the motor. The stator and rotor of a brushless motor consist of a stator core, stator windings, and a frame. The main function of the brushless motor stator and rotor is to generate a rotating magnetic field, while the main function of the rotor is to be cut by electromagnetic lines in the rotating magnetic field to generate (output) current. The rotor is the rotating part of the motor. The motor consists of a rotor and a stator, used to achieve the conversion of electrical energy and mechanical energy, as well as mechanical energy and energy conversion devices. The motor rotor system is divided into two motor rotors and generator rotors. The function of the brushless motor stator and rotor is to rotate the drive shaft and provide electrical energy and mechanical energy conversion. The stator refers to the conductor in the magnetic field, the conductor is fixed, and the rotor refers to the electromagnetic coil, which moves relative to the conductor. This relative motion causes the magnetic lines of force to be cut, thus generating current in the stator coil. The stator and rotor of a brushless motor are made of iron cores and windings, and the windings are made of silicon steel and thick copper conductors. The conductors are insulated and coated with epoxy resin. The stator and rotor of a brushless motor are equivalent to conductors, and the rotor is equivalent to an electromagnet. After the rotor is energized, it is driven to rotate by the engine to form a rotating magnetic field model. Conversely, when the conductor cuts the rotating magnetic field, an induced electromotive force will be formed in the conductor.

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