Anti-interference micromotor

Abstract

The utility model provides an anti-interference micromotor, which comprises an iron core group, a shielding ring and a shell, wherein the centers of the iron core group and a fixed part are sequentially arranged on a shaft through a bearing; the shielding ring is formed by a plurality of shielding sheets according to a preset interval; a hole site is formed in the middle of one end of the shell, the shaft is arranged on the hole site in a penetrating mode, and the other end of the shell is an open end; the iron core group is embedded into the shell through the open end of the shell, and the fixing piece is connected with the iron core group exposed out of one side of the open end of the shell; the shielding rings are arranged between the iron core group and the shell according to a preset interval; the problems that noise is large, interference is prone to occurring, and maintenance cost is high are further effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of micromotors, in particular to an anti-interference micromotors. Background Art

[0002] A micromotor, or "microelectric motor," refers to a motor with a diameter less than 160 mm or a rated power less than 750 mW. Micromotors are often used in control systems or to transmit mechanical loads to detect, analyze, amplify, execute, or convert electromechanical signals or energy.

[0003] Currently, micromotors mainly utilize the conversion of electrical energy to convert it into kinetic energy and drive the objects it is connected to; the interaction of magnetic fields in the air gap of the micromotor produces a radial force that varies with time and space, causing the stator core and base to deform periodically over time, that is, the stator vibrates; electromagnetic noise is mainly caused by the vibration of the stator causing the surrounding air to pulsate, resulting in airborne noise.

[0004] From the above, it can be seen that the existing micro motors have the problems of high noise, susceptibility to interference and high maintenance cost. Utility Model Content

[0005] In view of the above problems, the present invention is proposed to provide an anti-interference micromotor that overcomes the above problems or at least partially solves the above problems.

[0006] In order to solve the above problems, the utility model discloses an anti-interference micromotor, including an iron core group and a fixing member whose centers are sequentially arranged on a shaft through bearings, and a shielding ring and a shell composed of multiple shielding plates at preset intervals; a hole is provided in the middle of one end of the shell, the shaft is passed through the hole, and the other end of the shell is set as an open end; the iron core group is embedded in the shell through the open end of the shell, and the fixing member is connected to the iron core group exposed on one side of the open end of the shell; the shielding ring is arranged between the iron core group and the shell at a preset interval.

[0007] Furthermore, the shielding ring includes a circular ring composed of a plurality of limiting grooves at preset intervals, and the shielding sheet is installed on the circular ring through the limiting grooves.

[0008] Furthermore, a mounting groove is provided on the end surface where the shell is connected to the shaft, and the shielding ring is arranged on the shell through the mounting groove.

[0009] Furthermore, at least two heat dissipation openings and at least two fixing holes are provided on the end surface where the shell is connected to the shaft.

[0010] Furthermore, the core group consists of a stator winding, a stator core, a rotor winding and a rotor core.

[0011] Furthermore, one end of the fixing member is connected to the core assembly, and at least two threaded holes are provided on the other end surface of the fixing member.

[0012] Furthermore, the length of the shell is greater than the length of the core group and the shielding ring.

[0013] The utility model has the following advantages: by setting a shielding ring, noise reduction, interference reduction and easy maintenance are achieved, mainly by using a shielding ring composed of multiple shielding sheets at a preset interval, the shielding ring is set between the iron core group and the shell at the preset interval, a hole is set in the middle of one end of the shell, the shaft is set through the hole, the other end of the shell is set as an open end, and the iron core group is embedded in the shell through the open end of the shell; the fixing part is connected to one end of the iron core group set at the open end of the shell; further effectively solves the problems of high noise, easy interference and high maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic diagram of the main structure of an anti-interference micromotor provided in one embodiment of the utility model;

[0016] Figure 2 This is a schematic structural diagram of an anti-interference micromotor provided in one embodiment of the present utility model;

[0017] Figure 3 This is a schematic structural diagram of an anti-interference micromotor provided in one embodiment of the present utility model;

[0018] Figure 4 This is a structural diagram of an anti-interference micromotor provided in one embodiment of the present utility model.

[0019] In the figure: 100, core assembly; 200, fixing part; 201, threaded hole; 300, bearing; 400, shaft; 500, shielding ring; 501, shielding plate; 502, circular ring; 503, limiting groove; 600, housing; 601, heat dissipation port; 602, fixing hole. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments; the components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] The following describes some embodiments of the present application in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features thereof may be combined with each other.

[0022] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, an embodiment of the present invention provides an anti-interference micromotor, including a core group 100 and a fixing member 200, the centers of which are sequentially arranged on a shaft 400 through a bearing 300, and a shielding ring 500 and a shell 600 composed of multiple shielding sheets 501 at a preset interval; a hole is provided in the middle of one end of the shell 600, the shaft 400 is passed through the hole, and the other end of the shell 600 is set as an open end; the core group 100 is embedded in the shell 600 through the open end of the shell 600, and the fixing member 200 is connected to the core group 100 exposed on the side of the open end of the shell 600; the shielding ring 500 is arranged between the core group 100 and the shell 600 at a preset interval.

[0023] It should be noted that the present invention is preferably a boneless micromotor, but includes but is not limited to motors, boned micromotors, and micromotors. The boneless micromotor is a new type of micromotor whose working principle is mainly based on the piezoelectric effect and ultrasonic vibration. This motor uses the characteristic of piezoelectric materials that will deform when input voltage is applied, thereby generating mechanical vibrations at ultrasonic frequencies. Through a carefully designed friction drive mechanism, the boneless micromotor can achieve rotational motion or linear movement, similar to a traditional electromagnetic motor. Therefore, they have been widely used in fields such as intelligent robots, precision instruments and meters, medical equipment, aerospace, and optical lenses.

[0024] Furthermore, the current boneless micromotors have the following disadvantages: First, electromagnetic interference. Boneless micromotors may generate electromagnetic interference, which will affect surrounding electronic equipment and systems; second, maintenance is relatively complicated. Due to the complex design and high performance characteristics, boneless micromotors may require more professional knowledge and skills in maintenance and servicing; third, mechanical strength limitation: boneless micromotors have no external frame to provide protection and may be affected by mechanical shock and external environment in some cases; the utility model further achieves noise reduction, low interference, long life and low maintenance cost of boneless micromotors by arranging a shielding ring 500, a shell 600 and a detachable fixing part 200 on the boneless micromotor.

[0025] As a preferred embodiment, the shielding ring 500 includes a circular ring 502 composed of multiple limiting grooves 503 at preset intervals, and the shielding sheet 501 is installed on the circular ring 502 through the limiting grooves 503; specifically, the limiting grooves 503 are set on the circular ring 502 to facilitate the fixed assembly of the shielding sheet 501. Furthermore, since the shielding ring 500 is mainly used to reduce the influence of interference and noise on the boneless micromotor, the surface of the shielding sheet 501 will be bent at a preset angle.

[0026] As a preferred embodiment, a mounting groove is provided on the connecting end surface of the shell 600 and the shaft 400, and the shielding ring 500 is arranged on the shell 600 through the mounting groove; specifically, this setting is mainly for fixing the shielding ring 500 between the shell 600 and the core group 100, and the shell 600 protects the shielding ring 500 and the core group 100, and the shielding ring 500 has an anti-interference and noise reduction effect on the boneless micromotor.

[0027] As a preferred embodiment, at least two heat dissipation ports 601 and at least two fixing holes 602 are provided on the connecting end surface of the shell 600 and the shaft 400; specifically, the heat dissipation ports 601 are provided on the connecting end surface of the shell 600 and the shaft 400 mainly for the heat dissipation of the boneless micromotor, and the fixing holes 602 are for facilitating the installation and connection between the boneless micromotor and the target driving component.

[0028] As a preferred embodiment, the core group 100 is composed of a stator winding, a stator core, a rotor winding and a rotor core.

[0029] As a preferred embodiment, one end of the fixing member 200 is connected to the core group 100, and at least two threaded holes 201 are provided on the other end surface of the fixing member 200; specifically, the threaded holes 201 are provided on the fixing member 200 to stably fix the connection position of the boneless micromotor and the device.

[0030] As a preferred embodiment, the length of the shell 600 is greater than the length of the core group 100 and the shielding ring 500; specifically, the shell 600 is mainly used to protect the core group 100 and the shielding ring 500, and the core group 100 and the shielding ring 500 are arranged inside the shell 100, and the length of the shell 600 as a whole covering the core group 100 and the shielding ring 500 is greater than the length of the core group 100 and the shielding ring 500.

[0031] As a preferred embodiment, the core group 100 and the fixing member 200 are sequentially arranged on the shaft 400 through the bearing 300, and a shielding ring 500 and a shell 600 composed of a plurality of shielding sheets 501 at a preset interval; a hole is provided in the middle of one end of the shell 600, the shaft 400 is passed through the hole, and the other end of the shell 600 is set as an open end; the core group 100 is embedded in the shell 600 through the open end of the shell 600, and the fixing member 200 and the shielding ring 500 exposed at the opening of the shell 600 are provided. The core group 100 is connected to the core group 100 on the side of the release end; the shielding ring 500 is arranged between the core group 100 and the shell 600 according to a preset spacing; specifically, the core group 100 and the fixing member 200 are arranged on the shaft 400 through the bearing 300, and the shell 600 is mainly circular, and a hole is provided in the center of one end face of the shell 600. The shaft 400 passes through the hole in the middle of the shell 600, and the other end face is an open end; the core group 100 is arranged on the shaft 400 through the bearing 300, and is embedded in the shell 600 through the open end of the shell 600. Internally, the end faces of the core group 100 and the shell 600 with holes are provided with a preset spacing, and the above-mentioned shielding ring 500 is fixedly installed on the shell 600 through the mounting groove. The shielding ring 500 is arranged between the shell 600 and the core group 500 according to the preset spacing, and a certain spacing is preset between the upper and lower parts of the two. When the motor is working, the shaft 400 drives the core group 100 to work through the bearing 300. At this time, the shielding ring 500 mainly plays an anti-interference and noise reduction role for the boneless micromotor; further, the core group 100 is embedded in the outer shell through the open end of the shell 600. The shell 600 is inside, and the fixing part 200 is connected to the core group 100 exposed on one side of the open end of the shell 600. It should be noted that the fixing part 200 is detachably arranged on the core group 100, mainly to facilitate the maintenance of the boneless micromotor. A threaded hole 201 is provided on the other end face of the fixing part 200. The boneless micromotor is mainly stably connected to the equipment through the threaded hole 201 on the end face of the fixing part 200, so that the boneless micromotor can work stably, which brings further noise reduction, low interference, long life and low maintenance cost to the boneless micromotor.

[0032] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements that are inherent to such process, method, article, or terminal device. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of additional identical elements in the process, method, article, or terminal device that includes the element.

[0033] The above is a detailed introduction to an anti-interference micromotor provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of the present invention. At the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An anti-interference micromotor, characterized in that: The center of the core group and the fixing member are sequentially arranged on the shaft through the bearing, and the shielding ring and the shell are composed of a plurality of shielding sheets at a preset interval; A hole is provided in the middle of one end of the housing, the shaft is passed through the hole, and the other end of the housing is set as an open end; The core group is embedded in the shell through the open end of the shell, and the fixing member is connected to the core group exposed on one side of the open end of the shell; The shielding ring is arranged between the core group and the shell according to a preset distance.

2. The anti-interference micromotor according to claim 1, characterized in that: The shielding ring comprises a circular ring composed of a plurality of limiting grooves arranged at preset intervals, and the shielding sheet is mounted on the circular ring through the limiting grooves.

3. The anti-interference micromotor according to claim 2, characterized in that: A mounting groove is provided on the end surface where the shell and the shaft are connected, and the shielding ring is arranged on the shell through the mounting groove.

4. The anti-interference micromotor according to claim 3, characterized in that: At least two heat dissipation openings and at least two fixing holes are provided on the end surface where the shell is connected to the shaft.

5. The anti-interference micromotor according to claim 1, characterized in that: The iron core group consists of a stator winding, a stator iron core, a rotor winding and a rotor iron core.

6. The anti-interference micromotor according to claim 1, characterized in that: One end of the fixing member is connected to the iron core assembly, and at least two threaded holes are provided on the other end surface of the fixing member.

7. The anti-interference micromotor according to claim 1, characterized in that: The length of the shell is greater than the length of the core group and the shielding ring.

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