Vertical type direct connection draught fan
A direct-connected, vertical technology, used in electromechanical devices, mechanical equipment, non-variable-capacity pumps, etc., can solve the problems of low speed, low efficiency, and low pressure ratio of the prime mover motor, and achieve low starting current, fewer components, The effect of increasing the magnetic flux density
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Example Embodiment
[0033] Embodiment 1 The permanent magnet rotor is distributed axially, and the fan is arranged vertically.
[0034] See figure 1 , The permanent magnet rotor 21 and the stator coil 22 are distributed in an axial manner. The permanent magnets of the permanent magnet rotor are arranged around the axis along the axis, and the stator coils corresponding to the permanent magnet rotor are also arranged around the axis along the axis. , That is, the permanent magnet rotor and the stator coil are both cylindrical; a magnet tube 23 is arranged outside the stator coil symmetrical to the permanent magnet rotor, and the permanent magnet rotor 21, the stator coil 22 and the magnet tube 23 are placed on the body of the impeller 31 In the cavity of, the magnet barrel 23 is fixedly connected with the impeller body and rotates with the shaft. In addition, the positions of the permanent magnet rotor 21 and the magnet barrel 23 can be interchanged.
[0035] A limit roller 15 is arranged between the ...
Example Embodiment
[0038] Embodiment 2 The permanent magnet rotors are distributed radially, and this embodiment is arranged vertically.
[0039] See figure 2 The basic structure of the impeller, shaft and impeller shell is similar to that of the first embodiment. The special feature is that the permanent magnet rotors are distributed radially, and the permanent magnet rotors are arranged in the radial direction of the shaft. The permanent magnet rotors are disk-shaped, and the permanent magnet rotor disks Place behind the impeller. Corresponding stator coils are concentrated windings, which are also arranged around the shaft in the radial direction of the shaft. This structure is suitable for fans with large torque and lower speed.
[0040] Experimental results show that the speed can reach more than 15000 rpm. The wind pressure ratio can reach above 1.5.
Example Embodiment
[0041] Example 3
[0042] See image 3 , The basic structure is similar to the second embodiment, the special feature is: the stator coil is also in the shape of a flat disk, and a magnet disk 23 is provided on the other side of the stator coil symmetrical to the permanent magnet rotor, and the magnet disk is fixed to the shaft In connection, the stator coil 22 is interposed between the permanent magnet rotor 21 and the magnet disk 23; a radial guide vane 13 is installed on the rear side of the impeller, and the guide vane is fixed to the impeller shell through a rear plate 33.
[0043] The stator coil is also in the shape of a flat disk, so as to increase the torque and reduce the axial distance to make the shafting work in a rigid state, reduce the critical effect, and increase the torque.
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