CN211701692U - Ultrasonic brushless DC motor - Google Patents

Abstract

The utility model discloses an ultrasonic brushless DC motor, which comprises an output shaft and an iron shell, wherein the right end of the output shaft is coaxially provided with a shaft core, the right side of the iron shell is provided with an end cover, and the right end of the shaft core is fixedly provided with a commutator; the left side is provided with magnet support in the iron casing, has magnet through magnet support fixed mounting, and iron casing inner circle fixed mounting has the iron core piece, and the inside recess that is provided with of iron core piece twines the enamelled copper line in the recess of iron core piece, and the pin hole has been seted up at the end cover middle part, and commutator both sides electric connection has the connection lead wire. The utility model inputs 3.0V-4.2V voltage by the AC power supply, instantly generates reciprocating swing to generate vibration, the motor can generate different vibration feelings by using the change of voltage and frequency, and can carry out corresponding debugging according to the different requirements of application scenes, thereby improving the debugging efficiency; when the power supply is provided, the rotor can swing in a reciprocating mode, the service life is long, the vibration performance is strong, the quality is stable, the frequency is stable, and the application scene is wide.

Description

Ultrasonic brushless DC motor

Technical Field

The utility model relates to a brushless DC motor field, in particular to ultrasonic wave brushless DC motor.

Background

The brushless direct current motor is composed of a motor main body and a driver, and is a typical electromechanical integration product. A brushless motor refers to a motor without a brush and a commutator (or a slip ring), which is also called a commutator-less motor. Transistors were produced in the middle of the last century, and therefore, brushless dc motors using transistor commutation circuits instead of brushes and commutators have been produced. This new brushless motor, called electronically commutated dc motor, overcomes the drawbacks of the first generation brushless motors.

The miniature brushless reciprocating type swing motor has longer service life than a brush motor, is durable and is more convenient to use. Only the vibration frequency of the motor is reduced along with the gradual weakening of magnetism, and for this reason, an ultrasonic brushless direct current motor is proposed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides ultrasonic wave brushless DC motor, can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an ultrasonic brushless dc motor comprising: the output shaft is coaxially provided with a shaft core at the right end of the output shaft, an end cover is arranged at the right side of the iron shell, a commutator is fixedly arranged at the right end of the shaft core, and the outer side of the commutator is used for adjusting the rotation direction of the shaft core;

the utility model discloses a commutator, including iron case, end cover, commutator both sides electric connection, the iron case is provided with magnet holder in the left side, has magnet through magnet holder fixed mounting, iron case inner circle fixed mounting has the iron core piece, the inside recess that is provided with of iron core piece, the winding has the enameled copper line in the recess of iron core piece, the pin hole has been seted up at the end cover middle part, commutator both sides electric connection has the connecting lead, the connecting lead passes through the inside pin hole of end cover and goes out, communicates with external power source through the connecting lead, provides the starting power supply.

Preferably, iron-clad ball bearing is provided with on the left of the iron-clad, the output shaft outside is rotated and is installed inside iron-clad ball bearing, provides radial support for the output shaft through iron-clad ball bearing.

Preferably, an end cover bearing is arranged in the middle of the inner part of the end cover, and the inner ring of the end cover bearing is tightly installed at the right end of the shaft core.

Preferably, a copper meson is arranged on the left side of the shaft core.

Preferably, the parcel in the enameled copper line outside has the copper sheathing, avoids the enameled copper line to cause scraping brokenly and the damage at the in-process of installation, avoids striking sparks at the in-process enameled copper line that uses, causes motor fault rate height.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the alternating current power supply is used for inputting 3.0-4.2V voltage, reciprocating swing is generated instantly to generate vibration, the motor can generate different vibration senses with different strengths by using the voltage and frequency changes, corresponding debugging can be performed according to different requirements of application scenes, the structure does not need to be disassembled, the operation is convenient, and the debugging efficiency is improved.

2. The utility model provides a rotor can realize toward reciprocating type swing during power, and the life-span is permanent, and the vibrations nature is strong, the steady quality, the stable frequency, applicable in the medical instrument field, novel toothbrush field, fields such as beauty instrument, massager.

3. Radial support is carried out to the both ends of axle core through end cover bearing and iron-clad ball bearing, promotes axle core pivoted stability to promote the stability of structure.

Drawings

Fig. 1 is a structural diagram of the whole cross-sectional view of the ultrasonic brushless dc motor of the present invention.

In the figure: 1. an output shaft; 2. an iron shell ball bearing; 3. a copper meson; 4. a magnet holder; 5. an iron shell; 6. enamelling copper wires; 7. a commutator; 8. an end cap; 9. connecting a lead; 10. an end cap bearing; 11. a magnet; 12. an iron core sheet; 13. a copper sleeve; 14. and (4) a shaft core.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1, the ultrasonic brushless dc motor includes an output shaft 1 and an iron case 5, an iron case ball bearing 2 is disposed at the left side of the iron case 5, the right end of the output shaft 1 is coaxially provided with a shaft core 14, the outer side of the output shaft 1 is rotatably arranged in the iron shell ball bearing 2, the output shaft 1 is supported radially through an iron shell ball bearing 2, an end cover 8 is arranged on the right side of the iron shell 5, an end cover bearing 10 is arranged in the middle of the end cover 8, the inner ring of the end cover bearing 10 is tightly arranged at the right end of the shaft core 14, the two ends of the shaft core 14 are radially supported by the end cover bearing 10 and the iron shell ball bearing 2, the stability of the rotation of the shaft core 14 is improved, therefore, the stability of the structure is improved, the copper meson 3 is arranged on the left side of the shaft core 14, the commutator 7 is fixedly arranged on the right end of the shaft core 14, and the outer side of the commutator 7 is used for adjusting the rotation direction of the shaft core 14;

the left side in the iron shell 5 is provided with a magnet support 4, a magnet 11 is fixedly arranged on the left side through the magnet support 4, an iron core 12 is fixedly arranged on the inner ring of the iron shell 5, a groove is arranged in the iron core 12, an enameled copper wire 6 is wound in the groove of the iron core 12, a copper sleeve 13 is wrapped on the outer side of the enameled copper wire 6, the enameled copper wire 6 is prevented from being scraped and damaged in the installation process, the enameled copper wire 6 is prevented from being ignited in the use process, the fault rate of a motor is high, the middle part of the end cover 8 is provided with a lead hole, two sides of the commutator 7 are electrically connected with a connecting lead 9, the connecting lead 9 penetrates through the lead hole in the end cover 8 and is communicated with an external power supply through the connecting lead 9, a starting power supply is provided, the rotor can swing in a reciprocating manner when the power supply is provided, the service life is long, stable quality and stable frequency, and is suitable for the fields of medical instruments, novel toothbrushes, beauty instruments, massagers and the like.

The utility model discloses a theory of operation is: the motor can generate vibration senses with different strengths by using the voltage and frequency changes, can be debugged correspondingly according to different requirements of application scenes, does not need to disassemble a structure, is convenient to operate and improves debugging efficiency.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (5)

1. Ultrasonic wave brushless DC motor, including output shaft (1) and iron-clad (5), its characterized in that: a shaft core (14) is coaxially arranged at the right end of the output shaft (1), an end cover (8) is arranged at the right side of the iron shell (5), and a commutator (7) is fixedly arranged at the right end of the shaft core (14);

the utility model discloses a wire harness iron core, including iron case (5), iron case (5) inside left side is provided with magnet support (4), has magnet (11) through magnet support (4) fixed mounting, iron case (5) inner circle fixed mounting has iron core piece (12), iron core piece (12) inside is provided with the recess, the winding has enameled copper wire (6) in the recess of iron core piece (12), the pin hole has been seted up at end cover (8) middle part, commutator (7) both sides electric connection has connecting lead (9), connecting lead (9) are worn out through the inside pin hole of end cover (8).

2. The ultrasonic brushless dc motor according to claim 1, wherein: iron-clad ball bearing (2) are provided with on iron-clad (5) left side, the output shaft (1) outside is rotated and is installed inside iron-clad ball bearing (2).

3. The ultrasonic brushless dc motor according to claim 1, wherein: an end cover bearing (10) is arranged in the middle of the inner part of the end cover (8), and the inner ring of the end cover bearing (10) is tightly installed at the right end of the shaft core (14).

4. The ultrasonic brushless dc motor of claim 3, wherein: the left side of the shaft core (14) is provided with a copper meson (3).

5. The ultrasonic brushless dc motor of claim 4, wherein: and the outer side of the enameled copper wire (6) is wrapped with a copper sleeve (13).

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