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

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My thoughts on watching "Amazing China"

Release Time:

2022-02-22

  Summary: Recently, Hanwha Electroparts Company, in response to a call, organized party members, cadres, and employee representatives to visit a cinema to collectively watch the large-scale documentary "Amazing China", witnessing the glorious achievements of the motherland's development and feeling the national pride of the new era.

Jinzhou Hanwha Electroparts / Gao Zhiqi

  Recently, Hanwha Electroparts Company, in response to a call, organized party members, cadres, and employee representatives to visit a cinema to collectively watch the large-scale documentary "Amazing China", witnessing the glorious achievements of the motherland's development and feeling the national pride of the new era.
  Guided by the new era of socialism with Chinese characteristics, the film presents, in documentary form for the first time on the big screen, the development achievements and trajectory of China over the five years since the 18th National Congress of the Communist Party of China, as well as the major statement of "Entering a New Era of Socialism with Chinese Characteristics" put forward in the 19th National Congress report.
  Throughout the film, "Amazing China" showcases the "great power style" through various perspectives such as the dream projects, technological innovation, and green China, demonstrating the coordinated development of the "five-in-one" approach of the cause of socialism with Chinese characteristics; it also showcases the "four confidences" of the Chinese people in the new era through the images and stories behind super projects such as Chinese bridges, roads, cars, and ports.
  "Amazing China" uses "great nation" and "small family" as intertwined themes, focusing on the "great nation" while also highlighting the "small family." This adds a touching element to the grand scale of the film. Behind every "Chinese miracle" lies the participation and contribution of ordinary people. The greatness of the nation stems from the collective efforts of every citizen. The achievements of the nation are reflected in the better lives of every citizen.
  From watching the film to reflecting on ourselves, as Hanwha people, although we are not at the forefront of the nation's major projects, we can still feel pride and self-esteem in our daily hard work, providing the world with the highest quality armature products and continuously striving for a better life for the Chinese people.
  "Shocking, heartwarming, and proud"—these three words lingered in my mind after watching "Amazing China." I was shocked by China's strong national strength, its rapid development, and the hard work and ingenuity of the Chinese people. The engineers' persistence over a decade, the heartwarming grassroots work of the Tibetan poverty alleviation girl, and the return of Chinese people from Yemen all reflect the Party and the state's care for the people, giving us a strong sense of identity, belonging, security, and pride towards our motherland. Since the 18th National Congress of the Communist Party of China, the Party Central Committee with Comrade Xi Jinping at its core has remained true to its original aspiration and forged ahead, using concrete actions to achieve remarkable achievements, proving to the Chinese people and the world what confidence in the path, theory, and system means. The confidence of the Chinese people has been unprecedentedly consolidated, making everyone deeply feel that they have a strong motherland behind them. With the creation of one Chinese miracle after another and the writing of one Chinese story after another, I can't help but shout from the bottom of my heart: Amazing China!
  After the film, everyone expressed their feelings, saying that they would strive to demonstrate the excellent qualities of the Chinese people in their respective positions and roles, and contribute their modest efforts to the great development of the Sandan Horse Farm.

09-13

2022

Methods for winding the armature of a DC brushless automotive motor

The method for winding the armature winding of a DC brushless car motor is to leave a section of the cable end free and tie it tightly to the shaft. Hold the car armature with one hand, and wind the coil inductance clockwise with the other hand. Taking a five-slot armature as an example, the first coil is 1-5, the second coil is 2-6, then 3-7..., and so on. The sides of many components are on the next layer. The 5-9 components have one side on the next layer and the other side on the top layer. The sides of many components are on the top layer. In order to ensure the insulation between the top layer and the next layer components, it is advisable to place 0.1-0.15mm thick insulating paper pads in between. When the coil inductance in the slot reaches a certain level, a crossbar is needed to make it reach the bottom of the slot. When winding the coil inductance, the wire should be tightened first. Whether in the slot or the wire connection part, it is necessary to prevent the occurrence of crossed turns to prevent excessive space occupation and short circuit between turns due to partial stress of the wire. After all the windings are wound, the wire ends of the same winding component are bundled together, then the insulation layer of the wire connector is removed, different color waterproof sleeves are used, and they are embedded in the corresponding commutator segments. The important role of the armature in a DC brushless motor: DC motor,

08-22

2022

Design rules for automotive armatures

Automotive armature manufacturers indicate that single-layer windings are not suitable for large-capacity motors, and small-capacity motors should not be double-layered. The magnetic flux density of the motor core should not be too high or too low. When the frequency and thickness of the silicon steel sheet core material are constant, the iron loss depends on the magnetic flux density. If the magnetic flux density is too high, the iron loss increases, and the motor efficiency decreases. The increased heat from the iron core increases the motor temperature, and the increased excitation power increases the motor power factor, so the magnetic flux density of the core should not be too high. Try to avoid excessive saturation of the magnetization curve. If the magnetic density is too low, it will increase the amount of motor material used, increasing the cost. The rotor teeth are narrow, the magnetic density is high, the slot entry wire is large, that is, the automotive armature slots are large. Automotive armature manufacturers indicate that due to poor air conduction, there are many gaps in the slots, affecting the coils and easily damaging the heat dissipation of the insulation material, accelerating the increase in motor temperature. The slot fill factor of the motor slots cannot be too high or too low. Usually, the slot fill factor for low-speed motors is 75% to 85%, which can effectively prevent the enamelled wire from loosening in the slots. The design of the motor rotor slot shape should use parallel trapezoidal recesses as much as possible, and the edges of the recesses should not have sharp corners. Try to use a circular bottom recess, because the circular slot is filled with aluminum, which is easy to injection mold and the stator chip is easy to insert. The coil current density should not be...

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