Cylindrical linear motor
A technology of linear motors and cylinders, applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve the problems of permanent magnets and permanent magnets not being placed on the side of the motor at the same time, so as to prevent permanent magnets from demagnetizing and reliable High performance and easy maintenance
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Embodiment 1
[0049] Such as figure 2 As shown, the present invention provides a cylindrical linear motor, which includes: a primary structure 1, a secondary structure 2, multiple sets of tenth salient pole structures 11, multiple permanent magnets 12 and multiple windings 13, Both the primary structure 1 and the secondary structure 2 are cylindrical, the primary structure 1 is surrounded by the outer side of the secondary structure 2, and the secondary structure 2 is arranged coaxially with the primary structure 1 One end of the tenth salient pole structure 11 is installed on the inner wall of the primary structure 1, and a plurality of the permanent magnets 12 and the windings 13 are installed on a plurality of the tenth salient pole structures 11; The permanent magnets 12 are mounted on the other end of the tenth salient pole structure 11 in groups of several, the windings 13 are coiled on the side wall of the tenth salient pole structure 11, and the middle part of the winding 13 is cov...
Embodiment 2
[0058] Such as figure 2 and Figure 8 As shown, on the basis of Embodiment 1, the primary structure 1 of this embodiment includes: a plurality of single-phase primary components 14, and a plurality of single-phase primary components 14 are connected in the axial direction through a non-magnetic material. The upper connection; among them, the non-magnetic material plays the role of magnetic isolation and fixed connection for each single-phase primary component. The single-phase primary component 14 is in the shape of a hollow ring, and the inner ring wall of the single-phase primary component 14 is provided with multiple sets of the tenth salient pole structures 11, and multiple sets of the tenth salient pole structures 11 are arranged on the inner wall of the single-phase primary component 14. The inner walls of the single-phase primary components 14 are arranged at equal intervals along the circumferential direction.
[0059] In the process of actual production and applica...
Embodiment 3
[0065] Such as Figure 10 As shown, on the basis of Embodiment 1, the plurality of permanent magnets 12 in this embodiment are all magnetized in the radial direction.
[0066] In order to make the magnetic density in the air gap close to a sine wave, the magnetization directions of the three permanent magnets 12 are not exactly the same, but they are all magnetized along the radial direction. The schematic diagram of the magnetization directions of the permanent magnets 12 is shown in Figure 10 As shown, the upper side of the first permanent magnet 12 on the left side in the figure can be class N, and the lower side of the first permanent magnet 12 on the left side in the figure can be class S; the second permanent magnet 12 on the left side in the figure The upper side can be class S, the lower side of the second permanent magnet 12 on the left in the figure can be class N; the upper side of the third permanent magnet 12 on the left in the figure can be class N, the third pe...
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