Permanent magnetism roller capable of generating fluctuation magnetic field

Abstract

The invention discloses a permanent magnetic roller for producing a variable magnetic field, which is suitable for magnetic recovery or the treatment of certain diseases. three permanent magnetic sources are fixed to be a slender structure by axle handles on two ends of the permanent magnetic roller; the axle handle on one end is arranged on a bearing; the axle handle on the other end is connected with a motor by a sleeve pipe and arranged inside a shell; the magnetization directions of the permanent magnetic sources positioned on the ends of two sides are vertical to the axis of the magnetic roller and have reverse orientations; the magnetization direction of the permanent magnetic source on the middle is the same as the axis of the magnetic roller; a magnetic field generated by the magnetic source circulates in the vertical section of the permanent magnetic roller; the field strength of the magnetic field generated outside the shell is far larger than the prior product; the permanent magnetic roller has small size and low cost and can meet the different requirements of clinical medical personnel.

Description

technical field [0001] The invention discloses a permanent magnetic roller generating a variable magnetic field, which is suitable for magnetic rehabilitation or the treatment of certain diseases, and belongs to the field of permanent magnet medical rehabilitation equipment. Background technique [0002] At present, the prior art has disclosed a class of permanent magnetic rollers that can generate a variable magnetic field. This magnetic roller is driven by a motor or manpower to rotate, and a magnetic field that changes with time is generated in the area around the magnetic roller. In recent years, it has been used For magnetic rehabilitation or the treatment of certain diseases; [0003] figure 1 Shown, is the typical structure schematic diagram of the permanent magnet magnetic roller of prior art, from figure 1 It can be seen in the figure that the two ends of the permanent magnet roller are shaft handles 1-1 made of non-magnetic materials, and the columnar permanent m...

AI Technical Summary

Problems solved by technology

[0005] 1. Since the magnetic field circulates in the cross-section perpendicular to the longitudinal axis of the magnetic roll, that is, the orientation direction of the permanent magnet source is limited within the cross-section of the magnetic roll, since the magnetic roll cannot be made too thick (the market needs magnetic roll is made slender), so the size of the magnetic source orientation direction can not exceed the cross-sectional diameter of the magnetic roll, the magnetic potential is limited, and cannot be designed very strong, which makes the ability of the permanent magnetic magnetic roll of the prior art to generate a magnetic field limited;

[0006] 2. The magnetic source of the magnetic roller in the prior art generates a magnetic field in the space around the magnetic roller, and the magnetic field has the same level of distribution around the magnetic roller. There is no emphasis, so the utilization rate of the magnetic source is not high. ;

[0007] 3. The magnetic source is special-shaped, generally cylindrical, and wire cutting is required in the manufacture, which increases the manufacturing cost of the magnetic roller

[0008] Due to the occurrence of the above problems, the magnetic field generated by the magnetic rollers of the prior art decays rapidly along the radial direction of the magnetic rollers, and the action distance cannot be too far, and the utilization efficiency of the magnetic source is not high. Therefore, the magnetic rollers of the prior art cannot meet the medical requirements. The personnel hope that the magnetic field generated by the magnetic roller will not decay too fast along the radial direction of the magnetic roller, and the working distance should be as far as possible.

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