Gyromagnetic motor with magnetic field shielding structure

Abstract

The utility model provides a gyromagnet motor with a magnetic field shielding structure, which comprises a driving motor, a strong magnet, shielding iron and a locking piece, a driving shaft is arranged on the driving motor, the strong magnet and the shielding iron are both arranged on the driving shaft, and two sides of the shielding iron are respectively arranged at intervals with the end face of the driving motor and the end face of the strong magnet. The locking piece can fix the shielding iron on the driving shaft, and the shielding iron and the driving shaft can rotate synchronously. The beneficial effects are that the motor can effectively solve the problems of small magnet magnetic force intensity or large motor loss when the existing motor is used, through using the product structure and spacing between the shielding iron and the strong magnet, the leakage magnetic flux is effectively reduced, the shielding iron has small influence on the magnetic force of the strong magnet, and the shielding iron and the driving shaft rotate synchronously, so that the reliability of the motor is improved. The positions and angles of the shielding iron and the strong magnet are relatively fixed, magnetic induction lines generated when the shielding iron cuts the strong magnet are effectively avoided, eddy current generated by the motor is effectively reduced, and the use experience of a user and the product competitiveness are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a rotary magnet motor with a magnetic field shielding structure. Background Technology

[0002] With the development of technology, the application of motors is becoming more and more widespread. Motors are often used as a common driving device for equipment, providing a power source for different structures. In health care products, such as magnetic therapy products, motors work in conjunction with magnets. Health care products use strong magnets to achieve their functional effects, and the stronger the magnetism, the better the effect.

[0003] To avoid interference from the magnetic field of a strong magnet on the motor, existing methods include two approaches. The first method involves attaching a shielding iron to the end of the strong magnet facing the motor, with the shielding iron and the strong magnet being integrated. While this method can prevent interference, the high permeability of the shielding iron itself generates a large leakage flux inside, causing the strong magnet to lose a significant portion of its original strong magnetism, thus failing to meet user requirements. The second method involves attaching a shielding iron to the end of the motor near the strong magnet. During operation, the magnet rotates relative to the motor, causing the magnetic field lines generated by the magnet to be continuously cut by the shielding iron. This results in eddy currents inside the shielding iron, increasing the overall eddy current losses of the motor. Although this solution shields the motor from magnetic field interference, it leads to increased motor heating, additional load, and a significant reduction in efficiency, still failing to meet user needs and hindering product competitiveness. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a rotary magnet motor with a magnetic field shielding structure, which solves the problems of low magnet strength or high motor loss in the use of existing motors.

[0005] This utility model discloses a rotary magnetoelectric motor with a magnetic field shielding structure, including a drive motor, a strong magnet, a shielding iron, and a locking component. The drive motor is equipped with a drive shaft, and both the strong magnet and the shielding iron are mounted on the drive shaft. The shielding iron is spaced apart from the end face of the drive motor and the end face of the strong magnet on both sides. The locking component can fix the shielding iron on the drive shaft, and the shielding iron can rotate synchronously with the drive shaft.

[0006] This utility model is further improved by including mounting screws, and the locking component includes a clamping component and a fixing component. The fixing component is a fixing ring, which is interference-fitted onto the drive shaft and is located on the side of the shield facing the drive motor. The end of the drive shaft is provided with a screw hole. The mounting screw includes a screw post and a screw head. The screw post is threadedly connected to the screw hole. The clamping component is located between the strong magnet and the shield iron, and the screw head can press the strong magnet and the clamping component toward the shield iron.

[0007] This utility model is further improved by making the clamping component a non-magnetic plate, with the two end faces of the non-magnetic plate respectively attached to the end faces of the strong magnet and the shielding iron.

[0008] This utility model is further improved in that the clamping component is composed of multiple small gaskets, which are arranged adjacent to each other.

[0009] The present invention is further improved by including a spacer spring, a first pressing washer and a second pressing washer. The first pressing washer and the second pressing washer are respectively disposed at the front and rear ends of the strong magnet. The screw head can press the first pressing washer onto the strong magnet. The spacer spring is disposed between the second pressing washer and the pressing member.

[0010] In a further improvement to this invention, the fixing component can also be a positioning snap ring, with a positioning slot provided on the drive shaft, the positioning snap ring sleeved on the drive shaft, and the positioning snap ring disposed in the positioning slot.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a rotary magnet motor with a magnetic field shielding structure. By adopting this structure, it can effectively solve the problems of low magnetic strength of magnets or high motor losses in the use of existing motors. By using this product structure, the gap between the shielding iron and the strong magnet effectively reduces leakage flux, so that the influence of the shielding iron on the magnetic force of the strong magnet is small. Moreover, the shielding iron can rotate synchronously with the drive shaft, so that the position and angle of the shielding iron and the strong magnet are relatively fixed, effectively avoiding the shielding iron cutting the magnetic field lines generated by the strong magnet, effectively reducing the generation of eddy currents in the motor, and effectively improving the user experience and product competitiveness. Attached Figure Description

[0012] To more clearly illustrate the solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of the rotary magneto with a magnetic field shielding structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the rotary magneto with a magnetic field shielding structure of this utility model. Detailed Implementation

[0015] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, and accompanying drawings are used to distinguish different objects, not to describe a particular order.

[0016] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment to other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention can be combined with other embodiments.

[0017] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0018] like Figure 1 and Figure 2 As shown, this utility model discloses a rotary magnetoelectric motor with a magnetic field shielding structure, including a drive motor 1, a strong magnet 2, a shielding iron 3, and a locking component. The drive motor 1 is provided with a drive shaft 11, and the strong magnet 2 and the shielding iron 3 are both provided on the drive shaft 11. The shielding iron 3 is spaced apart from the end face of the drive motor 1 and the end face of the strong magnet 2 on both sides. The locking component can fix the shielding iron 3 on the drive shaft 11, and the shielding iron 3 can rotate synchronously with the drive shaft 11.

[0019] By spacing the shielding iron 3 and the strong magnet 2, leakage flux is effectively reduced, making the influence of the shielding iron 3 on the magnetic force of the strong magnet 2 smaller. Furthermore, the shielding iron 3 can rotate synchronously with the drive shaft 11, so that the position and angle of the shielding iron 3 and the strong magnet 2 are relatively fixed, effectively preventing the shielding iron 3 from cutting the magnetic field lines generated by the strong magnet 2, reducing the probability of eddy currents generated in the motor, and effectively improving the user experience and product competitiveness.

[0020] The rotary magneto with a magnetic field shielding structure also includes mounting screws 5, locking components including clamping components 6 and retaining rings 4. The locking component is the retaining ring 4, which is interference-fitted onto the drive shaft 11 and is located on the side of the shield facing the drive motor 1. The end of the drive shaft 11 is provided with a screw hole 111. The mounting screw 5 includes a screw post 51 and a screw head 52. The screw post 51 is threadedly connected to the screw hole 111. The clamping component 6 is located between the strong magnet 2 and the shielding iron 3. The screw head 52 can press the strong magnet 2 and the clamping component 6 towards the shielding iron 3. The strong magnet 2, the clamping component 6, the shielding iron 3 and the retaining ring 4 rotate synchronously with the drive shaft 11.

[0021] When the mounting screw 5 is rotated into the screw hole 111, the strong magnet 2 and the clamping part 6 move toward the shielding iron 3, and finally fix the shielding iron 3 on the fixing ring 4. The positions of the strong magnet 2, the clamping part 6, the shielding iron 3 and the fixing ring 4 are relatively fixed, and they rotate synchronously with the drive shaft 11.

[0022] Obviously, the locking components include the clamping component 6 and the fixing component. The fixing component is a fixing ring 4, which is interference-fitted onto the drive shaft 11. The fixing ring 4 is located on the side of the shield facing the drive motor 1, so that the fixing ring 4 limits the shield iron 3 on one side. Other structural methods can also be used instead. For example, the fixing component can also be a positioning spring. The drive shaft 11 is provided with a positioning groove, and the positioning spring is fitted onto the drive shaft 11 and located in the positioning groove. This can also limit the shield iron 3 on one side.

[0023] The clamping component 6 consists of multiple small shims, which are arranged adjacent to each other. By using multiple small shims, one side of the shielding iron 3 is clamped to ensure the stability of the installation position of the shielding iron 3.

[0024] Obviously, for the clamping component 6 to be a non-magnetic plate, with its two ends respectively attached to the end faces of the strong magnet 2 and the shielding iron 3, thus achieving the method of fixing the position of the shielding iron 3 in conjunction with the locking component, other structural methods can also be used instead. For example, the clamping component 6 can be a non-magnetic plate with its two ends respectively attached to the end faces of the strong magnet 2 and the shielding iron 3, or adhesive can be filled between the strong magnet 2 and the shielding sticker for fixation, which can also achieve the positional stability of the shielding iron 3 during installation.

[0025] The rotary magneto with a magnetic field shielding structure also includes a spacer snap ring 7, a first clamping pad 8, and a second clamping pad 9. The first clamping pad 8 and the second clamping pad 9 are respectively disposed at the front and rear ends of the strong magnet. The screw head 52 can press the first clamping pad 8 onto the strong magnet. The spacer snap ring 7 is disposed between the second clamping pad 9 and the clamping member.

[0026] As can be seen from the above, the beneficial effects of this utility model are: by adopting its mechanism, it can effectively solve the problems of low magnetic strength of magnets or high motor losses in the use of existing motors. By using this product structure, the gap between the shielding iron 3 and the strong magnet 2 effectively reduces the leakage magnetic flux, so that the shielding iron 3 has less influence on the magnetic force of the strong magnet 2. In addition, the shielding iron 3 can rotate synchronously with the drive shaft 11, so that the position and angle of the shielding iron 3 and the strong magnet 2 are relatively fixed, effectively preventing the shielding iron 3 from cutting the magnetic field lines generated by the strong magnet 2, effectively reducing the possibility of eddy currents generated in the motor, and effectively improving the user experience and product competitiveness.

[0027] The specific embodiments described above are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with this utility model are within the protection scope of this utility model.

Claims

1. A gyromagnetic machine having a magnetic field shielding structure, characterised in that: The utility model relates to a driving motor, strong magnet, shielding iron and locking piece are included, driving shaft is provided on the driving motor, strong magnet and shielding iron are all arranged on the driving shaft, shielding iron both sides are with driving motor end face and strong magnet end face interval setting, locking piece can fix shielding iron on the driving shaft, shielding iron can rotate with the driving shaft synchronously.

2. Gyroelectric machine with magnetic field shielding structure according to claim 1, characterized in that: Still include installation screw, locking piece includes pressing part and fixed part, fixed part is fixed ring, the fixed ring is set on the driving shaft with the interference fit, and the fixed ring sets up shielding the side to driving motor, driving shaft end part is provided with screw hole, installation screw includes screw column and screw head, screw column is with screw hole screw connection, pressing part sets up between strong magnet and shielding iron, screw head can press strong magnet and pressing part to shielding iron direction.

3. Gyroelectric machine with magnetic field shielding structure according to claim 2, characterized in that: The pressing part is a non-magnetic plate, and the end faces of the non-magnetic plate are respectively attached to the end faces of the strong magnet and the shielding iron.

4. The gyromagnetic electric machine with magnetic field shielding structure according to claim 2, characterized in that: The pressing part is composed of a plurality of small gaskets, and the plurality of small gaskets are adjacently attached.

5. The gyromagnetic electric machine with magnetic field shielding structure according to claim 2, characterized in that: It also includes a spacer spring, a first pressing gasket and a second pressing gasket, the first pressing gasket and the second pressing gasket are respectively arranged at the front and rear ends of the strong magnet, the screw head can press the first pressing gasket on the strong magnet, and the spacer spring is arranged between the second pressing gasket and the pressing part.

6. Gyro-magnetic machine with magnetic field shielding structure according to any of claims 2-5, characterized in that: The fixed part can also be a positioning spring, the driving shaft is provided with a positioning slot, the positioning spring is sleeved on the driving shaft, and the positioning spring is arranged in the positioning slot.

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