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Permanent magnet motor creates a "strong heart" of new energy vehicles"
2023-07-28
Not long ago, with the electric vehicles of well-known domestic car companies such as Geely Automobile and Zhongtong Bus offline, more than 70000 high-performance permanent magnet motors for new energy vehicles have been installed.
From the first generation round strand winding motor with a power density of 4.2-5.3kW/kg to the second generation flat copper wire winding motor with a power density of 6.3kW/kg, the products and sample indexes of permanent magnet motors are comparable to or exceed the product level of first-line automobile motor manufacturers such as Europe, America, Japan and South Korea.
In the past two years, 17 units have driven the upstream industry chain to break through technical bottlenecks and fill a number of national technology and product gaps in the national "13th Five-Year" R & D plan for new energy vehicle drive motors. Among them, the use of heavy rare earths in rare earth permanent magnets is reduced; the long-term temperature resistance of insulating materials exceeds 200 ℃, and the corona-resistant life of round magnet wires is several times more than the national standard; the corona-resistant life of enameled flat wires is more than 90 hours ......
Part of the raw materials, core components and devices that once relied on imports have been independently developed and produced.
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2023-07-28
With the development of all-electric technology, electric steering gear is widely used in aerospace, military applications and other fields. The rudder system motor requires high power density, high dynamic response and high reliability. Permanent magnet synchronous motor (PMSM) is widely used in servo system because of its simple structure, high torque density, high power density and high efficiency. High power density motor generally refers to high speed high power density motor and high torque high power density motor.
Permanent magnet motor creates a "strong heart" of new energy vehicles"
2023-07-28
Not long ago, with the electric vehicles of well-known domestic car companies such as Geely Automobile and Zhongtong Bus offline, more than 70000 high-performance permanent magnet motors for new energy vehicles have been installed.
How to choose a suitable AC brake motor
2023-07-28
AC brake motor is a kind of electric motor commonly used in machinery and industrial equipment. They are driven by AC power and can provide strong torque and stable operation. However, there are various types and specifications of AC brake motors on the market, and choosing a motor that suits your needs may be confusing. This article will introduce some key points and suggestions for choosing an AC brake motor to help you make an informed decision.
Comparison of AC brake motor and DC brake motor
2023-07-28
AC brake motor and DC brake motor are two common motor types, which have their own advantages and limitations in different application fields. In this article, we will compare these two motors and explore their application in braking systems.
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