Strong magnetic assembly and gyromagnetic mechanism

Abstract

A strong magnetic assembly and a gyromagnetic mechanism comprise a strong magnetic assembly, a brushless motor and a shell, the brushless motor is arranged under the strong magnetic assembly and controls the strong magnetic assembly to rotate or stop, a strong magnetic assembly body comprises a magnetic block A, a magnetic block group C, a magnetic block B and a magnetic block group D which are sequentially arranged according to the circumferential sequence, the magnetic block A and the magnetic block B are symmetrically arranged, and the shell is arranged in the shell. The upper end of the magnetic block A is an N pole, the lower end of the magnetic block A is an S pole, the upper end of the magnetic block B is an S pole, and the lower end of the magnetic block B is an N pole; the magnetic pole of the magnetic block group C is the same as the magnetic pole of the magnetic block A, the magnetic pole of the magnetic block group D is the same as the magnetic pole of the magnetic block B, and the magnetic block group C comprises at least two magnetic blocks which are spliced up and down along the axial direction. Compared with the prior art, the magnetic field range of a rotating magnetic field is wide, the intensity is high, and continuous large-area magnetic therapy can be performed on a specified part of a human body; the magnetic therapy effect is better, and the adopted brushless motor is low in noise and better in stability.

Description

Technical Field

[0001] This utility model relates to the field of magnetic rotation technology, and in particular to a strong magnetic component and a magnetic rotation mechanism. Background Technology

[0002] A gyromagnetic mechanism is a device designed based on the gyromagnetic effect, which controls or influences matter in a magnetic field by generating a rotating magnetic field. In the medical field, a rotating magnetic field of at least 600-1500 Gauss can be used in physiotherapy equipment. A rotating magnetic field of 600-1500 Gauss intensity can promote local blood circulation, relieve muscle tension, and reduce pain.

[0003] To achieve better magnetic therapy effects and reduce noise during the magnetic therapy process, a strong magnetic component and a rotating magnetic mechanism are designed. On the one hand, the strong magnetic component controlled by the rotating magnetic mechanism enhances the magnetic surface strength, resulting in a larger magnetic field coverage area and improving the magnetic therapy effect of the rotating magnetic mechanism. On the other hand, the motor used in the rotating magnetic mechanism has better stability and lower noise. Utility Model Content

[0004] The present invention aims to overcome the defects in the prior art and provide a strong magnetic component and a rotating magnetic mechanism.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A strong magnetic component includes a strong magnetic component body, which includes magnetic blocks A, C, B, and D arranged in a circumferential order. Magnetic blocks A and B are symmetrically arranged. The upper end of magnetic block A is the N pole, and the lower end of magnetic block A is the S pole. The upper end of magnetic block B is the S pole, and the lower end of magnetic block B is the N pole. The magnetic poles of magnetic block group C are the same as those of magnetic blocks A, and the magnetic poles of magnetic block group D are the same as those of magnetic blocks B. Magnetic block group C includes at least two magnetic blocks that are spliced ​​vertically along the axial direction.

[0006] As a preferred embodiment of this utility model, the D magnetic block group includes at least two magnetic blocks spliced ​​vertically along the axial direction, and the D magnetic block group and the C magnetic block group may have the same or different volume.

[0007] In a preferred embodiment of this utility model, the A magnetic block and the B magnetic block are of the same size, and the volumes of the A magnetic block and the B magnetic block are both larger than the volumes of the C magnetic block group and the D magnetic block group.

[0008] As a preferred embodiment of this utility model, the strong magnetic component body includes a stainless steel outer cover and a magnetic shielding sheet. The stainless steel outer cover is used to cover magnetic blocks A, B, C, and D as a whole, and the magnetic shielding sheet is located at the bottom of magnetic blocks A, B, C, and D.

[0009] As a preferred embodiment of this utility model, the strong magnetic component body has an upper cavity and a lower cavity formed sequentially from top to bottom in the middle, and a fixing block is fixedly disposed in the upper cavity.

[0010] A magnetic rotation mechanism includes a strong magnetic component, a brushless motor, and a housing. The brushless motor is positioned directly below the strong magnetic component and controls its rotation or stationary position. The housing includes a base and an outer cover. The base supports the brushless motor and the strong magnetic component, and the outer cover covers the brushless motor and the strong magnetic component. The base has an upwardly protruding support column on the side facing the brushless motor. The support column is hollow inside, and a slot is formed at the bottom of the support column.

[0011] As a preferred embodiment of the present invention, the brushless motor includes a motor stator sleeved outside the support column and a motor rotor sleeved outside the motor stator. The motor rotor has a connecting shaft with an upward protrusion in the middle, which extends into the lower cavity located in the middle of the strong magnet assembly. The motor rotor also has a rotating shaft with a downward protrusion in the middle, which extends into the interior of the support column.

[0012] As a preferred embodiment of this utility model, the brushless motor further includes a levitation magnet, a fixed magnet, and an end cap. The end cap includes a mounting part, a positioning part located at the upper end of the mounting part, and a mounting slot located in the middle of the mounting part. The mounting part is disposed in the slot of the support column. The levitation magnet is fixedly disposed at the lower end of the rotating shaft, and the fixed magnet is fixedly disposed in the mounting slot. The fixed magnet generates magnetic force to limit the levitation magnet to a specified position.

[0013] As a preferred embodiment of this utility model, the brushless motor further includes a radial ball bearing and a limiting block. The rotating shaft includes a rotating part and a stepped part. The radial ball bearing is located between the support column and the rotating shaft. One top end of the radial ball bearing abuts against the limiting block fixed to the upper end of the support column. The other top end of the radial ball bearing is abutted by the stepped part. One bottom end of the radial ball bearing abuts against the levitation magnet fixed to the lower end of the rotating shaft. The other bottom end of the radial ball bearing is abutted by the positioning part. At the same time, the limiting block located on the support column also abuts against the motor stator.

[0014] As a preferred embodiment of the present invention, the brushless motor further includes a bushing located between the radial ball bearing and the support column, the bushing being used to protect the radial ball bearing and the support column from damage.

[0015] The beneficial effects of this utility model are:

[0016] 1. In this utility model, magnetic blocks A and B are large and identical magnetic blocks, and the magnetic lines of force they generate are mainly distributed around the periphery of the strong magnetic component. Magnetic block groups C and D are both composed of magnetic blocks spliced ​​vertically. When the magnetic blocks are spliced ​​vertically, the magnetic lines of force emitted upwards by magnetic block groups C and D are higher. Based on the combination of magnetic block groups C and D, magnetic blocks A and B improve and define the height and diameter range of the magnetic field. When used in conjunction with a brushless motor, the range of the rotating magnetic field is limited, allowing for better utilization of the controllable rotating magnetic field for targeted magnetic therapy of the human body.

[0017] 2. The strong magnetic component composed of magnetic blocks A, B, C, and D of this utility model has a surface magnetic induction intensity of over 12000 GS, a magnetic field penetration height of about 50cm, a magnetic field penetration radius of about 50cm, a wide magnetic field range and high intensity of the rotating magnetic field, and a slower magnetic force decay, which can better promote local blood circulation in the human body, relieve muscle tension, and reduce pain.

[0018] 3. The fixed magnet located in the mounting slot of this utility model generates an upward repulsive force on the suspended magnet fixed at the lower end of the rotating shaft. Correspondingly, the suspended magnet and the motor rotor fixed to the suspended magnet are both confined to a designated position, so that the motor rotor does not vibrate during rotation, reducing mechanical vibration noise. At the same time, the motor rotor fixed to the suspended magnet is also subjected to an upward force, which reduces the friction between the stepped part and the top of the radial ball bearing during the rotation of the motor rotor, reducing mechanical friction noise. Ultimately, the decibel level of the brushless motor during operation is reduced.

[0019] 4. The limiting block and rotating shaft of this utility model provide upper limit for the radial ball bearing, and the end cover and upper levitation magnet provide lower limit for the radial ball bearing, so that the radial ball bearing does not move up and down and can be fixed in the designated position to promote the stable rotation of the motor rotor. The bushing located between the radial ball bearing and the support column can absorb some energy and play a buffering role, protecting adjacent components such as the radial ball bearing and the support column from damage, thereby improving the service life of the brushless motor. Attached Figure Description

[0020] Figure 1 This is an internal sectional view of the present invention;

[0021] Figure 2 This is a schematic diagram showing the arrangement of magnetic block A, magnetic block B, magnetic block group C, and magnetic block group D of this utility model;

[0022] Figure 3 This is a schematic diagram of the installation of the magnetic component body and the motor rotor of this utility model;

[0023] Figure 4 This is a schematic diagram of the external structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the end cap structure of this utility model;

[0025] The attached figures are labeled as follows: 1. Brushless motor; 2. Strong magnetic component body; 3. Housing; 11. Motor stator; 12. Motor rotor; 13. Radial ball bearing; 14. Suspension magnet; 15. Fixed magnet; 16. End cover; 17. Limiting block; 18. Bushing; 21. A magnetic block; 22. B magnetic block; 23. C magnetic block group; 24. D magnetic block group; 25. Stainless steel outer cover; 26. Magnetic shielding sheet; 27. Upper cavity; 28. Lower cavity; 29. ​​Fixed block; 31. Base; 32. Outer cover; 121. Connecting shaft; 122. Rotating shaft; 161. Mounting part; 162. Positioning part; 163. Mounting slot; 311. Support column; 312. Lower support part; 321. Upper support part; 1221. Rotating part; 1222. Stepped part; 3111. Slot. Detailed Implementation

[0026] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0027] Example 1:

[0028] like Figures 1-3 As shown, a strong magnetic component includes a strong magnetic component body 2. The strong magnetic component body 2 includes magnetic blocks A 21, C 23, B 22, and D 24 arranged in a circumferential order. Magnetic blocks A 21 and B 22 are symmetrically arranged. The upper end of magnetic block A 21 is the N pole, and the lower end of magnetic block A 21 is the S pole. The upper end of magnetic block B 22 is the S pole, and the lower end of magnetic block B 22 is the N pole. The magnetic poles of magnetic block C 23 are the same as those of magnetic block A 21, and the magnetic poles of magnetic block D 24 are the same as those of magnetic block B 22. Magnetic block C 23 includes at least two magnetic blocks that are spliced ​​vertically along the axial direction.

[0029] The D-block group 24 includes at least two magnetic blocks that are spliced ​​vertically along the axial direction. The D-block group 24 and the C-block group 23 have the same volume.

[0030] Magnetic block A 21 and magnetic block B 22 are the same size, and the volumes of magnetic block A 21 and magnetic block B 22 are both larger than the volumes of magnetic block group C 23 and magnetic block group D 24.

[0031] Among them, the N and S poles of the strong magnetic component body 2 are like Figures 2-3 As shown, magnetic blocks A 21, B 22, C 23 and D 24 are magnetically connected, and the high-energy magnetic blocks that make up C 23 and D 24 are also magnetically connected.

[0032] Specifically, magnetic blocks A 21 and B 22 are large and identical ordinary magnetic blocks, and the magnetic field lines they generate are mainly distributed around the perimeter of the strong magnetic component. Magnetic block groups C 23 and D 24 are formed by vertically joining magnetic blocks. When the blocks are joined vertically, the magnetic field lines emitted upwards from groups C 23 and D 24 are higher. The combination of magnetic blocks A 21 and B 22 with groups C 23 and D 24 allows the magnetic field lines to be emitted upwards at an angle. The magnetic field lines are as follows... Figure 3 As shown, this increases the penetration height of the magnetic field;

[0033] A magnetic block 21, B magnetic block 22, C magnetic block group 23 and D magnetic block group 24 are spliced ​​together to form a strong magnetic component. Compared with a single fixed magnetic block, the number and arrangement of the magnetic blocks in the strong magnetic component are different, which makes its magnetic surface strength greater, the magnetic field line coverage area wider, the magnetic force decay slower, and the magnetic therapy effect better.

[0034] In a specific embodiment, the strong magnetic component body 2, composed of magnetic block A 21, magnetic block B 22, magnetic block group C 23 and magnetic block group D 24, has a surface magnetic induction intensity of over 12000 GS, a magnetic field penetration height of about 50cm, and a magnetic field penetration radius of about 50cm. Correspondingly, the magnetic field lines are emitted at an angle of 35°-50° on both sides of the strong magnetic component body 2, wherein the emission angle is preferably 45°.

[0035] When the magnetic field penetrates to a height H = 40 cm, the magnetic induction intensity B > 1GS; when the magnetic field penetrates to a diameter Φ100 cm, the magnetic induction intensity B = 1GS.

[0036] The main body 2 of the strong magnetic component includes a stainless steel outer cover 25 and a magnetic shielding sheet 26. The stainless steel outer cover 25 is used to cover the A magnetic block 21, B magnetic block 22, C magnetic block group 23, and D magnetic block group 24 as a whole. The magnetic shielding sheet 26 is located at the bottom of the A magnetic block 21, B magnetic block 22, C magnetic block group 23, and D magnetic block group 24.

[0037] Specifically, the stainless steel outer cover 25 is fitted with magnetic blocks A 21, B 22, C 23, and D 24 with a clearance. The stainless steel outer cover 25 encloses magnetic blocks A 21, B 22, C 23, and D 24 as a whole, preventing the strong magnetic components from separating due to centrifugal force during high-speed rotation, thus affecting the magnetic field effect.

[0038] The magnetic shielding sheet 26, on the one hand, causes the magnetic lines of force to be emitted upward, increasing the surface magnetic intensity of the strong magnetic component, and on the other hand, prevents the magnetic lines of force of magnetic block A 21, magnetic block B 22, magnetic block group 23 and magnetic block group D 24 from penetrating downward and affecting the operation of the brushless motor 1 connected to the magnetic shielding sheet 26.

[0039] This invention employs a horizontal splicing of magnetic blocks A 21, B 22, C 23, and D 24, resulting in a magnetic induction intensity of over 12000 GS on the surface of the strong magnetic component and a horizontal magnetic field line coverage radius of approximately 50cm. The C 23 and D 24 groups, formed by the vertical splicing of several magnetic blocks, ensure that the magnetic field lines cover a height of approximately 50cm directly above. Combined with the operation of the brushless motor 1, this generates a wide-ranging and high-intensity rotating magnetic field, providing continuous and large-area magnetic therapy to designated parts of the human body, resulting in better therapeutic effects.

[0040] Furthermore, a wider and stronger rotating magnetic field decays more slowly, which can further promote local blood circulation in the human body, relieve muscle tension, and reduce pain.

[0041] The strong magnetic component body 2 has an upper cavity 27 and a lower cavity 28 formed sequentially from top to bottom in the middle. A fixing block 29 is fixedly installed inside the upper cavity 27. The upper cavity 27, the lower cavity 28, and the fixing block 29 are used for the connection between the strong magnetic component and the brushless motor 1.

[0042] like Figures 1-5 As shown, a magnetic rotation mechanism includes a strong magnetic component, a brushless motor 1, and a housing 3. The brushless motor 1 is positioned directly below the strong magnetic component and controls the rotation or stationary position of the strong magnetic component. The rotating strong magnetic component generates a rotating magnetic field, thereby providing magnetic therapy to the human body. The housing 3 includes a base 31 and an outer cover 32. The base 31 supports the brushless motor 1 and the strong magnetic component, and the outer cover 32 covers and protects the brushless motor 1 and the strong magnetic component. The base 31 has an upwardly protruding support column 311 on the side facing the brushless motor 1. The support column 311 is hollow inside, and a groove 3111 is formed at the bottom of the support column 311.

[0043] The base 31 and the outer cover 32 are both made of reinforced PBT material. PBT material is an engineering plastic, which has good insulation and corrosion resistance.

[0044] The outer cover 32 has an upper support portion 321, and the base 31 has a lower support portion 312 that is adapted to the upper support portion 321. Bolts or studs pass through the upper support portion 321 and the lower support portion 312 to facilitate fixing the magnetic rotating mechanism in furniture such as mattresses or sofas, which is conducive to the stable operation of the magnetic rotating mechanism.

[0045] The brushless motor 1 includes a motor stator 11 sleeved on the outside of the support column 311 and a motor rotor 12 sleeved on the outside of the motor stator 11. The motor rotor 12 has a connecting shaft 121 that protrudes upward in the middle and extends into the lower cavity 28 located in the middle of the strong magnet assembly. The motor rotor 12 also has a rotating shaft 122 that protrudes downward in the middle and extends into the inside of the support column 311.

[0046] It should be noted that after the connecting shaft 121 is connected to the lower cavity 28, its top is still lower than the top of the lower cavity 28. Correspondingly, when the bolt passes through the fixing block 29 to connect the fixing block 29 to the connecting shaft 121, the fixing block 29 abuts against the side of the strong magnetic component facing the fixing block 29.

[0047] Furthermore, as the fixed block 29 rotates with the connecting shaft 121, the friction between the fixed block 29 and the strong magnet assembly causes the strong magnet assembly to rotate synchronously. Correspondingly, the rotation of the motor rotor 12 in the brushless motor 1 drives the strong magnet assembly to rotate.

[0048] The brushless motor 1 includes a radial ball bearing 13, a levitation magnet 14, a fixed magnet 15, an end cap 16, and a limiting block 17. The end cap 16 includes a mounting part 161, a positioning part 162 located at the upper end of the mounting part 161, and a mounting slot 163 located in the middle of the mounting part 161. The mounting part 161 is disposed in the slot 3111 of the support column 311. The levitation magnet 14 is fixedly disposed at the lower end of the rotating shaft 122. The fixed magnet 15 is fixedly disposed in the mounting slot 163. The fixed magnet 15 generates magnetic force to limit the levitation magnet 14 to a specified position.

[0049] The rotating shaft 122 includes a rotating part 1221 and a stepped part 1222. The radial ball bearing 13 is located between the support column 311 and the rotating shaft 122. One top end of the radial ball bearing 13 abuts against the limiting block 17 fixed to the upper end of the support column 311. The other top end of the radial ball bearing 13 is abutted by the stepped part 1222. One bottom end of the radial ball bearing 13 abuts against the levitation magnet 14 fixed to the lower end of the rotating shaft 122. The other bottom end of the radial ball bearing 13 is abutted by the positioning part 161. At the same time, the limiting block 17 located on the support column 311 also abuts against the motor stator 11.

[0050] The brushless motor 1 includes a bushing 18, which is located between the radial ball bearing 13 and the support column 311. The bushing 18 is used to protect the radial ball bearing 13 and the support column 311 from damage.

[0051] Specifically, the limit block 17 and the rotating shaft 122 limit the radial ball bearing 13 to the upper limit, and the end cover 16 and the levitation magnet 14 limit the radial ball bearing 13 to the lower limit, so that the radial ball bearing 13 does not move up and down and is fixed in the designated position to promote the stable rotation of the motor rotor 12. The bushing 18 located between the radial ball bearing 13 and the support column 311 can absorb some energy and play a buffering role, protecting adjacent components such as the radial ball bearing 13 and the support column 311 from damage, and improving the service life of the brushless motor 1.

[0052] The fixed magnet 15 located in the mounting slot 163 generates an upward repulsive force on the levitation magnet 14 fixed at the lower end of the rotating shaft 122. Correspondingly, the levitation magnet 14 and the motor rotor 12 fixed to the levitation magnet 14 are both confined to a designated position, so that the motor rotor 12 does not vibrate during rotation, reducing mechanical vibration noise. At the same time, the motor rotor 12 fixed to the levitation magnet 14 is also subjected to an upward force, which reduces the friction between the stepped portion 1222 and the top of the radial ball bearing 13 during the rotation of the motor rotor 12, reducing mechanical friction noise. Ultimately, this reduces the decibel level of the brushless motor 1 during operation.

[0053] The brushless motor 1 and the strong magnetic component in this invention work together to form a rotating magnetic field with a surface magnetic intensity greater than 12000 GS. The magnetic field penetrates upward to a height of about 50 cm and has a penetration radius of more than 50 cm. The rotating magnetic field has a wide magnetic force range and a magnetic force intensity between 600 Gauss and 1500 Gauss. The magnetic force decays slowly, which can provide continuous and large-area magnetic therapy to designated parts of the human body, resulting in better magnetic therapy effects.

[0054] This invention reduces mechanical contact and vibration by setting up a levitation magnet 14 and a fixed magnet 15, thereby reducing mechanical noise and keeping the noise level of the rotating magnet mechanism below 40 decibels during operation. At the same time, the reduced mechanical friction and vibration also improve the service life of the brushless motor 1.

[0055] Example 2:

[0056] In Implementation 2, the sizes of magnetic block group 23 (C) and magnetic block group 24 (D) are different.

[0057] Although both magnetic block group 23 and magnetic block group 24 use magnetic blocks, the magnetic force of different magnetic blocks is different. For example, the magnetic force generated by the three magnetic blocks in magnetic block group 23 and the two magnetic blocks in magnetic block group 24 is the same.

[0058] Furthermore, although the volumes of magnetic block group 23 and magnetic block group 24 are different, the magnetic fields they generate are the same, which does not affect the magnetic therapy effect of the rotating magnetic mechanism.

[0059] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0060] Although this article uses many reference numerals from the figures: 1. Brushless motor, 2. Strong magnet assembly body, 3. Housing, 11. Motor stator, 12. Motor rotor, 13. Radial ball bearing, 14. Suspension magnet, 15. Fixed magnet, 16. End cap, 17. Limiting block, 18. Bushing, 21. A magnet, 22. B magnet, 23. C magnet group, 24. D magnet group, 25. Stainless steel outer cover, 26. Magnetic shielding sheet, 27. Upper cavity, 28. Lower cavity, 29. Fixing block, 31. Base, 32. The terms used include outer cover, 121, connecting shaft, 122, rotating shaft, 161, mounting part, 162, positioning part, 163, mounting slot, 311, support column, 312, lower support part, 321, upper support part, 1221, rotating part, 1222, stepped part, 3111, slot, etc., but the possibility of using other terms is not excluded; these terms are used only for the convenience of describing and explaining the essence of this utility model; interpreting them as any kind of additional limitation is contrary to the spirit of this utility model.

Claims

1. A strong magnetic assembly, characterized by: The strong magnetic assembly body (2) comprises A magnetic blocks (21), C magnetic block groups (23), B magnetic blocks (22) and D magnetic block groups (24) arranged in a circumferential order, the A magnetic blocks (21) and the B magnetic blocks (22) are symmetrically arranged, the upper end of the A magnetic block (21) is N-pole, the lower end of the A magnetic block (21) is S-pole, the upper end of the B magnetic block (22) is S-pole, and the lower end of the B magnetic block (22) is N-pole; the magnetic poles of the C magnetic block groups (23) are the same as those of the A magnetic blocks (21), and the magnetic poles of the D magnetic block groups (24) are the same as those of the B magnetic blocks (22), and the C magnetic block groups (23) comprise at least two magnetic blocks spliced in an axial direction.

2. A strong magnetic assembly according to claim 1, characterized in that: The D magnetic block groups (24) comprise at least two magnetic blocks spliced in an axial direction, and the volume of the D magnetic block groups (24) is the same as or different from that of the C magnetic block groups (23).

3. A strong magnetic assembly according to claim 2, characterized in that: The A magnetic blocks (21) and the B magnetic blocks (22) have the same volume, and the volume of the A magnetic blocks (21) and the B magnetic blocks (22) is greater than that of the C magnetic block groups (23) and the D magnetic block groups (24).

4. A strong magnetic assembly according to claim 1, characterized in that: The strong magnetic assembly body (2) comprises a stainless steel cover (25) and a magnetic separation sheet (26), the stainless steel cover (25) is used for covering the A magnetic blocks (21), the B magnetic blocks (22), the C magnetic block groups (23) and the D magnetic block groups (24) into one body, and the magnetic separation sheet (26) is located at the bottom of the A magnetic blocks (21), the B magnetic blocks (22), the C magnetic block groups (23) and the D magnetic block groups (24).

5. A strong magnetic assembly according to claim 1, characterized in that: The middle part of the strong magnetic assembly body (2) is sequentially formed with an upper cavity (27) and a lower cavity (28) from top to bottom, and a fixed block (29) is fixedly arranged in the upper cavity (27).

6. A gyromagnetic mechanism characterized by: The strong magnetic assembly, the brushless motor (1) and the shell (3) are arranged in any one of claims 1-5, the brushless motor (1) is arranged below the strong magnetic assembly and controls the rotation or stillness of the strong magnetic assembly, the shell (3) comprises a base (31) and a cover (32), the base (31) is used for supporting the brushless motor (1) and the strong magnetic assembly, the cover (32) is used for covering the brushless motor (1) and the strong magnetic assembly, the base (31) has a support column (311) protruding upward on the side facing the brushless motor (1), the support column (311) is hollow inside, and a notch (3111) is formed at the bottom of the support column (311).

7. A gyromagnetic mechanism according to claim 6, wherein: The brushless motor (1) comprises a motor stator (11) sleeved outside the support column (311) and a motor rotor (12) sleeved outside the motor stator (11), the motor rotor (12) has a connecting shaft (121) protruding upward in the middle part, the connecting shaft (121) extends into the lower cavity (28) in the middle part of the strong magnetic assembly, the motor rotor (12) has a rotating shaft (122) protruding downward in the middle part, and the rotating shaft (122) extends into the inside of the support column (311).

8. A gyromagnetic mechanism according to claim 7, wherein: The brushless motor (1) further comprises a floating magnet (14), a fixed magnet (15) and an end cover (16), the end cover (16) comprises a mounting part (161), a positioning part (162) located at the upper end of the mounting part (161) and a mounting notch (163) located at the middle part of the mounting part (161), the mounting part (161) is arranged in the notch (3111) of the support column (311), the floating magnet (14) is fixedly arranged at the lower end of the rotating shaft (122), the fixed magnet (15) is fixedly arranged in the mounting notch (163), and the fixed magnet (15) generates a magnetic force to limit the floating magnet (14) at a specified position.

9. A gyromagnetic mechanism according to claim 8, wherein: The brushless motor (1) further comprises a radial ball bearing (13) and a limiting block (17), the rotating shaft (122) comprises a rotating part (1221) and a stepped part (1222), the radial ball bearing (13) is located between the support column (311) and the rotating shaft (122), one end of the top of the radial ball bearing (13) abuts against the limiting block (17) fixed at the upper end of the support column (311), the other end of the top of the radial ball bearing (13) abuts against the stepped part (1222), one end of the bottom of the radial ball bearing (13) abuts against the floating magnet (14) fixed at the lower end of the rotating shaft (122), the other end of the bottom of the radial ball bearing (13) abuts against the positioning part (161), and meanwhile, the limiting block (17) located on the support column (311) also abuts against the motor stator (11).

10. A gyromagnetic mechanism according to claim 9, wherein: The brushless motor (1) further comprises a shaft sleeve (18), the shaft sleeve (18) is located between the radial ball bearing (13) and the support column (311), and the shaft sleeve (18) is used for protecting the radial ball bearing (13) and the support column (311) from being damaged.

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