Motor for electric massager

Abstract

The utility model discloses a motor for an electric massager, which relates to the technical field of motors for electric massagers and comprises a protection mechanism, and a rotor mechanism is mounted in the protection mechanism. According to the utility model, the iron core takes the center of the rotor shaft as the boundary, and the silicon steel sheets are arranged to deflect in different directions, so that the noise generated by the iron core takes the center of the iron core shaft as the boundary, the frequencies are equal, the phases are opposite, and the noise at the two ends of the core body can be offset to a certain extent when being gathered, thereby effectively reducing the noise generated when the rotor works; the magnetic through holes of the silicon steel sheets are formed in the axial direction instead of being obliquely formed at the deflection angle, so that the channel walls of the magnetic channels form steps, magnetic lines of force are guided, the working noise of the rotor is further reduced, meanwhile, compared with inclined through holes, the axial through holes are obviously simpler in L-shaped process and lower in cost, and noise generated by the rotor can be mutually counteracted; therefore, the operation noise of the motor is effectively reduced, the use experience of the massager is better, and the structure is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of motors for electric massagers, in particular to a motor for electric massagers. Background Art

[0002] The massager is a new generation of health care equipment developed based on physics, bionics, bioelectricity, traditional Chinese medicine and many years of clinical practice. It not only has eight simulation functions, allowing you to truly experience the wonderful feeling of eight functions of acupuncture, massage, hammering, cupping, scraping, weight loss, and immune regulation, but also has the unique effect of treating hypertension. With several independent soft-touch massage heads, it can relax muscles, soothe nerves, promote blood circulation, strengthen cell metabolism, enhance skin elasticity, relieve fatigue, significantly reduce various chronic pains, acute pains and muscle soreness, relax the body to reduce stress, and reduce skin wrinkles. The massager motor reducer is a special reducer developed and modified on the standard reducer and widely used in massage health care equipment; for example, it is secondary developed on micro, low-power gear reducers, planetary reducers, DC reducers, worm reducers, worm reducers, and planetary gear reducers.

[0003] At present, publication number CN212627621U discloses a DC motor for a neck kneading massager, including a front cover, a rear cover, a housing, a stator assembly, a rotor assembly and a commutation assembly, wherein the rotor assembly includes a motor shaft, and the commutation assembly includes a commutator, a carbon brush and a brush holder, wherein the commutator is fixed on the motor shaft, and a commutation piece is provided on the side of the commutator close to the carbon brush, and the brush holder is detachably fixed on the rear cover, and the carbon brush is mounted on the brush holder, and a support spring is provided between the rear end of the carbon brush and the brush holder, and the front end of the carbon brush has a support head protruding forward in the middle, and the support head can contact the commutation piece. The utility model provides a DC motor for a neck kneading massager, which can not only have a better commutation effect by improving the commutation assembly, but also be easy to disassemble and maintain, thereby better meeting actual needs.

[0004] In order to solve the problem of using the motor for the massager, the existing technology adopts a method of improving the commutation component, which not only has a better commutation effect, but also is easy to disassemble and maintain. However, the motor may make too much noise during operation and the heat dissipation protection performance may be insufficient, which may lead to poor use of the massager and a short service life of the motor. Utility Model Content

[0005] The purpose of the utility model is to provide a motor for an electric massager to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A motor for an electric massager comprises a protective mechanism, wherein a rotor mechanism is installed inside the protective mechanism, wherein the rotor mechanism comprises a rotor shaft and a core body fixed on the rotor shaft, wherein the core body is a cylinder formed by stacking a plurality of concentric silicon steel sheets, wherein all the silicon steel sheets have the same shape, and the axial deflection angles of adjacent silicon steel sheets are opposite to each other.

[0008] A further improvement of the technical solution of the utility model is that: a plurality of radial "human" shaped magnetic grooves are formed on the outer circumference of the silicon steel sheet on the outer surface of the core.

[0009] A further improvement of the technical solution of the utility model is that: a plurality of magnetic flux holes are opened on the silicon steel sheet, and the magnetic flux holes are evenly distributed along the circumferential surface of the silicon steel sheet. After the silicon steel sheets are stacked, all the dry magnetic flux holes at the same position form a magnetic channel with a side wall inclined to the axial direction of the silicon steel sheet and having a Rhodon step. The core is bounded by the center of the rotor shaft, and the silicon steel sheets are set to deflect in different directions, so that the noise generated by the core is equal in frequency and opposite in phase with the center of the core shaft as the boundary.

[0010] A further improvement of the technical solution of the utility model is that spoilers are respectively provided at the two axial ends of the core body, and the noises at the two ends of the core body will be offset to a certain extent when they are collected, effectively reducing the noise generated when the rotor is working.

[0011] A further improvement of the technical solution of the utility model is that: a plurality of magnetic grooves are evenly opened on the outer circumference of the silicon steel sheet, and are not tilted at a deflection angle, so that the channel wall of the magnetic channel forms a step, guides the magnetic lines of force, and further reduces the working noise of the rotor.

[0012] A further improvement of the technical solution of the utility model is that the protective mechanism includes an inner shell, the inner shell is installed on the surface of the rotor mechanism, the surface of the inner shell is fixedly connected with a support bar, the material of the support bar is rubber material, when the protective shell is subjected to external impact, the impact force is buffered by the support bar.

[0013] A further improvement of the technical solution of the utility model lies in that a protective shell and a heat dissipation baffle are fixedly connected to the surface of the support bar, one end of the protective shell is fixedly connected to a breathable mesh plate, one end of the breathable mesh plate is equipped with a heat dissipation fan, and the heat dissipation baffle is fixedly connected to the outside of one end of the protective shell. The breathable mesh plate and the heat dissipation baffle are used to protect the heat dissipation fan and the motor, and prevent dust from contaminating the heat dissipation fan and the motor while ensuring ventilation.

[0014] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0015] 1. The utility model provides a motor for an electric massager. The iron core is bounded by the center of the rotor shaft, and the silicon steel sheet is set to deflect in different directions, so that the noise generated by the iron core is equal in frequency and opposite in phase with the center of the iron core shaft as the boundary. The noise at both ends of the core body will produce a certain degree of cancellation when collected, which effectively reduces the noise generated when the rotor is working. The magnetic flux hole of the silicon steel sheet is opened along the axial direction, but not tilted at a deflection angle, so that the channel wall of the magnetic channel forms a step to guide the magnetic lines of force, further reducing the working noise of the rotor. At the same time, compared with the inclined opening hole, the axial opening hole is obviously simpler and the cost is lower. The noise generated by the rotor itself can cancel each other, thereby effectively reducing the running noise of the motor, making the massager have a better user experience and a simple structure.

[0016] 2. The utility model provides a motor for an electric massager. The support strip is made of rubber. When the protective shell is subjected to external impact, the impact force is buffered by the support strip. When the mechanism inside the motor is overheated, the heat dissipation fan is driven to rotate to bring out the heat inside the motor. The air-permeable mesh plate and the heat dissipation baffle are used to protect the heat dissipation fan and the motor. While ventilation is provided, dust is prevented from contaminating the heat dissipation fan and the motor, thereby effectively protecting and dissipating the heat of the motor and extending the service life of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the rotor mechanism of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the silicon steel sheet of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the protective mechanism of the utility model.

[0021] In the figure: 1. protective mechanism; 10. protective shell; 11. inner shell; 12. support bar; 13. breathable mesh plate; 14. cooling fan; 15. cooling baffle; 2. rotor mechanism; 20. rotor shaft; 21. core; 22. magnetic flux hole; 23. spoiler; 24. herringbone magnetic groove; 25. silicon steel sheet. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the embodiments:

[0023] Example 1

[0024] like Figure 1-4As shown, the utility model provides a motor for an electric massager, comprising a protection mechanism 1, a rotor mechanism 2 is installed inside the protection mechanism 1, the rotor mechanism 2 comprises a rotor shaft 20, a core 21 fixed on the rotor shaft 20, the core 21 is a cylindrical shape formed by stacking a plurality of concentric silicon steel sheets 25, all silicon steel sheets 25 have the same shape, adjacent silicon steel sheets 25 have axial deflection angles, and the silicon steel sheets 25 on both sides of the silicon steel sheet 25 located at the axial center of the core 21 have mutually deflection angle directions. On the contrary, a plurality of radial "human" shaped magnetic grooves 24 are formed on the outer surface of the core 21 on the circumferential outer ring of the silicon steel sheet 25, and a plurality of magnetic flux holes 22 are opened on the silicon steel sheet 25, and the magnetic flux holes 22 are evenly distributed along the circumferential surface of the silicon steel sheet 25. After the silicon steel sheets 25 are stacked, all the dry magnetic flux holes 22 at the same position form a magnetic channel with a Rudin step on the side wall inclined to the axial direction of the silicon steel sheet 25. The core 21 is provided with spoilers 23 at both axial ends, and a plurality of magnetic grooves are evenly opened on the circumferential outer ring of the silicon steel sheet 25.

[0025] Specifically, unlike the traditional unidirectional deflection iron core, the iron core of this invention uses the center of the rotor shaft 20 as the boundary, and sets the silicon steel sheet 25 to deflect in different directions, so that the noise generated by the iron core has the same frequency and opposite phase with the center of the iron core shaft as the boundary, and the noise at both ends of the core body 21 will produce a certain degree of offset when collected, which effectively reduces the noise generated when the rotor is working. The magnetic flux hole 22 of the silicon steel sheet 25 is opened axially instead of tilted at a deflection angle, so that the channel wall of the magnetic channel forms a step to guide the magnetic lines of force, further reducing the working noise of the rotor. At the same time, compared with the tilted opening hole, the axial opening hole is obviously simpler and the cost is lower.

[0026] Example 2

[0027] like Figure 1-4 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the protective mechanism 1 includes an inner shell 11, the inner shell 11 is installed on the surface of the rotor mechanism 2, the surface of the inner shell 11 is fixedly connected to a support bar 12, the surface of the support bar 12 is fixedly connected to a protective shell 10 and a heat dissipation baffle 15, one end of the protective shell 10 is fixedly connected to a breathable mesh plate 13, one end of the breathable mesh plate 13 is installed with a heat dissipation fan 14, and the heat dissipation baffle 15 is fixedly connected to the outer side of one end of the protective shell 10;

[0028] Specifically, the support bar 12 is made of rubber. When the protective shell 10 is subjected to external impact, the impact force is buffered by the support bar 12. When the mechanism inside the motor is overheated, the cooling fan 14 is driven to rotate to bring out the heat inside the motor. The air-permeable mesh plate 13 and the heat dissipation baffle 15 are used to protect the cooling fan 14 and the motor, and prevent dust from contaminating the cooling fan 14 and the motor while ensuring ventilation.

[0029] The working principle of the motor used for the electric massager will be described in detail below.

[0030] like Figure 1-4 As shown, the conventional unidirectional deflection iron core is different. The iron core of the present invention is bounded by the center of the rotor shaft 20, and the silicon steel sheet 25 is set to deflect in different directions, so that the noise generated by the iron core is equal in frequency and opposite in phase with the center of the iron core shaft as the boundary. The noise at both ends of the core body 21 will produce a certain degree of offset when collected, which effectively reduces the noise generated when the rotor is working. The magnetic flux hole 22 of the silicon steel sheet 25 is opened along the axial direction, but not tilted at a deflection angle, so that the channel wall of the magnetic channel forms a step to guide the magnetic lines of force, further reducing the working noise of the rotor. At the same time, compared with the inclined opening hole, the axial opening hole is obviously simpler and has lower cost. The support bar 12 is made of rubber. When the protective shell 10 is subjected to external impact, the impact force is buffered by the support bar 12. When the mechanism inside the motor is overheated, the cooling fan 14 is driven to rotate to bring out the heat inside the motor. The air-permeable mesh plate 13 and the heat dissipation baffle 15 are used to protect the cooling fan 14 and the motor. While ventilation is carried out, dust is prevented from polluting the cooling fan 14 and the motor.

[0031] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A motor for an electric massager, comprising a protection mechanism (1), characterized in that: A rotor mechanism (2) is installed inside the protection mechanism (1); The rotor mechanism (2) comprises a rotor shaft (20) and a core (21) fixedly mounted on the rotor shaft (20); the core (21) is cylindrical and is formed by stacking a plurality of concentric silicon steel sheets (25); all the silicon steel sheets (25) have the same shape; adjacent silicon steel sheets (25) have axial deflection angles; and the silicon steel sheets (25) on both sides of the silicon steel sheet (25) located at the axial center of the core (21) have deflection angles in opposite directions.

2. The motor for an electric massager according to claim 1, characterized in that: A plurality of radial "human" shaped magnetic grooves (24) are formed on the outer circumference of the silicon steel sheet (25) on the outer surface of the core (21).

3. The motor for an electric massager according to claim 2, characterized in that: The silicon steel sheet (25) is provided with a plurality of magnetic flux holes (22), the magnetic flux holes (22) being evenly distributed along the circumference of the silicon steel sheet (25), and after the silicon steel sheets (25) are stacked, all the magnetic flux holes (22) at the same position form a magnetic channel having a side wall inclined to the axial direction of the silicon steel sheet (25) and having a Jaudin step.

4. The motor for an electric massager according to claim 1, characterized in that: Spoiler plates (23) are respectively provided at two axial ends of the core (21).

5. The motor for an electric massager according to claim 1, characterized in that: The outer circumference of the silicon steel sheet (25) is evenly provided with a plurality of magnetic grooves.

6. The motor for an electric massager according to claim 1, characterized in that: The protection mechanism (1) comprises an inner shell (11), the inner shell (11) is mounted on the surface of the rotor mechanism (2), and a support bar (12) is fixedly connected to the surface of the inner shell (11).

7. The motor for an electric massager according to claim 6, characterized in that: A protective shell (10) and a heat dissipation baffle (15) are fixedly connected to the surface of the support bar (12); one end of the protective shell (10) is fixedly connected to a breathable mesh plate (13); one end of the breathable mesh plate (13) is equipped with a heat dissipation fan (14); and the heat dissipation baffle (15) is fixedly connected to the outer side of one end of the protective shell (10).

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