Development history and market scale analysis of high speed motor stator rotor industry
The high-speed motor consists of a rotor and a stator to convert electrical and mechanical energy and mechanical energy and electrical energy. The motor stator is the stationary part of the motor and the rotor is the rotating part of the motor. The main function of the stator is to generate a rotating magnetic field, and the main function of the rotor is to be cut by magnetic lines of force in a rotating magnetic field to generate (output) current.
First, the trend of professional production in the industry is becoming more and more obvious
From the structural point of view, the motor is mainly composed of two major components: the stator and the rotor. The stator mainly consists of a stator core, a stator winding, a base, etc. The main components of the rotor are a rotor core, a rotor winding, a rotating shaft and the like. The quality and performance of the stator and rotor core directly determine the key indicators of the performance, energy efficiency and stability of the motor. Therefore, the stator and rotor industries are closely related to the development of the motor industry.
China's motor industry has been a century-old history since the 1905 teaching production of Tianjin, the Wim Ester generator and other electrical magnetic teaching aids. In the more than 60 years after the founding of New China, the motor industry has developed rapidly and is now widely used in various economic sectors such as industry, agriculture, national defense, public utilities and household appliances.
In the mid-1980s, Shanghai took the lead in the production of fixed and rotor-punching production enterprises that specialized in motor enterprises.
In the early 1990s, in the initial stage of the development of the industry, the production enterprises specialized in producing motor stators, rotor punching sheets and iron cores were generally small in scale, mainly relying on location advantages to serve the major motor manufacturers in the surrounding areas. It is mainly based on conventional low-voltage motor punching. The business model is mainly based on simple processing of incoming materials. The production technology is relatively backward and the added value of products is low.
In the early 21st century, with the continuous optimization of product structure and the continuous improvement of production technology level, the strength of fixed and rotor core production enterprises has been continuously enhanced, and gradually in new product design, basic material research, production technology, product testing. And the development of special equipment has formed obvious specialization advantages. The cost optimization, reliable quality, rotor punching and iron core products provided by the company have prompted motor enterprises to accelerate the development of specialized production. The product line of the industry gradually extends from the punching piece to the stator core, the cast aluminum rotor, the fan blade for large motors, and the finished stator and rotor. The product series is extended from low-voltage products to high-voltage, low-voltage and high-power types and generators. , rotor core products; business model gradually changed from a simple processing mode to an independent "procurement - manufacturing - sales" model.
Since the beginning of the 21st century, internationally renowned motor companies have entered the domestic market and built their production bases in China. The production process and technical level of stator and rotor cores have been greatly improved, and the product series has added new high-efficiency and energy-saving motor standards in the United States and Europe. The fixed and rotor core products as well as the wind turbine generators, traction motors and drive motors for new energy vehicles, rotor core products, the trend of specialized production in this industry is increasingly obvious.
The high-speed motor stator rotor is concentrated in the upstream and downstream. The upstream is mainly silicon steel, cast iron, steel, graphite and other raw materials; downstream is high-speed motors, fans, compressors, pumps and electric vehicles.
