Switch magnetic flow permanent magnet synchronous motor
A permanent magnet synchronous motor, switching magnetic flux technology, applied in synchronous machine parts, synchronous motors with rotating armatures and stationary magnets, motors, etc., can solve problems such as poor field weakening control ability and large torque ripple. , to achieve the effect of improving mechanical strength, reducing total volume and reducing cost
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specific Embodiment approach 1
[0013] Specific implementation mode one: the following combination figure 1 Describe this embodiment, this embodiment includes a stator and a rotor 2, an air gap is formed between the inner ring surface of the stator and the outer ring surface of the rotor 2, and it is characterized in that: the stator is composed of 12 stator core laminations 1-1 and 12 pieces of permanent magnets 1-2 are closely assembled into a cylindrical shape in sequence, the radial section of each stator core lamination 1-1 is U-shaped with the opening facing inward, and the U-shaped groove of the stator core lamination 1-1 of the stator Concentrated windings 1-3 are distributed inside; 10 salient poles are evenly distributed on the outer circumference of the rotor 2;
[0014] The magnetization direction of the permanent magnets 1-2 is the circumferential direction, and the magnetization directions of the adjacent permanent magnets 1-2 are opposite along the circumferential direction.
[0015] The moto...
specific Embodiment approach 2
[0020] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the rotor 2 is formed by laminating a plurality of cold-rolled silicon steel sheets. Other components and connections are the same as those in Embodiment 1.
[0021] The rotor 2 is the magnetizer of the main magnetic circuit of the motor. The rotor 2 is formed by laminating a plurality of cold-rolled silicon steel sheets, which can reduce the eddy current loss of the rotor 2 . The rotor 2 in this embodiment can be formed by laminating cold-rolled silicon steel sheets of the grade DW310-35, and its surface has a good insulating film. DW310-35 is a silicon-iron soft magnetic alloy with extremely low carbon content, and the silicon content is 0.5-4.5%. Adding silicon increases the resistivity and maximum permeability of iron, reduces the coercive force, core loss and magnetic aging, it can convert the magnetic field energy of the motor into torque, reduces the generation of heat energy, and impr...
specific Embodiment approach 3
[0022] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the stator is formed by laminating a plurality of cold-rolled silicon steel sheets. Other components and connections are the same as those in Embodiment 1.
[0023] The material of the stator can be the same as that of the rotor 2, and the plurality of cold-rolled silicon steel sheets of the stator are bonded by coating phenolic resin adhesive, and laminated after drying to form. Phenolic resin is a basic carbon fiber resin composite material with good acid resistance, mechanical properties, heat resistance and corrosion resistance. It makes the bonding strength of multiple cold-rolled silicon steel sheets of the stator high and has good heat resistance. performance.
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