Magnetic suspension high-speed asynchronous motor
An asynchronous motor and magnetic levitation technology, applied in asynchronous induction motors, electrical components, electromechanical devices, etc., can solve the problems of difficult to derive the working temperature of magnetic steel, limit mechanical properties, reduce the service life of magnetic steel, etc., and achieve high speed and power. Extreme, excellent mechanical properties, improved heat dissipation effect
Pending Publication Date: 2021-08-27
XINLEI COMPRESSOR CO LTD
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Problems solved by technology
[0004] The existing technology has the following disadvantages: the traditional high-speed motor is a permanent magnet motor, and the outer surface of the magnetic steel needs a sheath, which will be limited by mechanical properties in the high-speed and high-power shaft system
The material of the sheath is generally carbon fiber and nickel-based alloy, the thermal conductivity is average, and the working temperature of the magnetic steel inside the sheath is difficult to derive, which reduces the service life of the magnetic steel
Method used
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Embodiment 1
[0027] Such as Figure 1-5 A magnetic levitation high-speed asynchronous motor shown, the motor includes a casing 1, a stator 2, a motor shaft 3, a radial bearing 5 and an axial bearing 6; the motor shaft 3 includes a first shaft section 31, respectively Two second shaft sections 32 outside the two ends of 31 and two third shaft sections 33 respectively located outside the two ends of the second shaft section 32; permanent magnets are arranged inside the first shaft section 31, and permanent magnets are arranged on the surface of the first shaft section 31. There is a copper clad layer 34, and the first shaft segment 31 is connected to the driving end of the stator 2; the second shaft segment 32 and the third shaft segment 33 are respectively connected to the supporting end of the axial bearing 6 and the supporting end of the radial bearing 5. In this solution, the copper clad layer 34 is integrated with the shaft, which has excellent mechanical properties and greatly increase...
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The invention relates to the field of magnetic suspension motors, in particular to a magnetic suspension high-speed asynchronous motor. The motor comprises a casing, a stator, a motor shaft, a radial bearing and an axial bearing; the motor shaft comprises a first shaft section, two second shaft sections located on the outer sides of the two ends of the first shaft section respectively, and two third shaft sections located on the outer sides of the two ends of the second shaft sections respectively; a permanent magnet is arranged in the first shaft section, a copper-clad layer is arranged on the surface of the first shaft section, and the first shaft section is connected with the stator driving end; and the second shaft section and the third shaft section are connected with the axial bearing supporting end and the radial bearing supporting end respectively. According to the motor, the copper-clad layer is arranged on the surface of the rotor without a sheath, so that the rotating speed and the power of the high-speed motor and the heat dissipation performance of the motor are improved.
Description
technical field [0001] The invention relates to the field of magnetic suspension motors, in particular to a magnetic suspension high-speed asynchronous motor. Background technique [0002] With the development of science and technology and the demand of production, magnetic levitation high-speed motor has become one of the hot spots in the field of international electrotechnical research. Due to the advantages of high energy density, small structural size, and high efficiency, the magnetic levitation high-speed motor has been widely used in industrial fields such as micro gas turbines, high-speed centrifugal compressors, molecular pumps, high-speed machining centers, and flywheel energy storage. growing. During the working process of the magnetic levitation motor, the stability of the motor rotor is the key to ensure the smooth and efficient operation of the motor. The magnetic properties of the permanent magnets of the motor rotor and the dynamic balance of the rotor itse...
Claims
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IPC IPC(8): H02K7/00H02K7/09H02N15/00H02K17/32F16C3/02
CPCF16C3/02F16C2380/26H02K7/003H02K7/09H02K17/32H02N15/00
Inventor 钟仁志袁军
Owner XINLEI COMPRESSOR CO LTD