Improved acoustic wave motor with rotor fixed by straight riveting

Abstract

The utility model discloses an improved sound wave motor with a rotor fixed by straight riveting, which comprises a shell, a rear cover clamped at one end of the shell, a mounting rack arranged in the middle of the inner side of the shell, an iron core fixedly arranged in the middle of the mounting rack, two coils arranged on the surface of the mounting rack, and magnets arranged on two sides of the mounting rack. The improved sound wave motor with the rotor fixed in the straight riveting mode is characterized in that the surface of the shell is provided with a flexible cushion pad, one end of the surface of the shell is fixedly provided with a buffer seat, and the surface of the rear cover is fixedly provided with an anti-seismic protection seat. The surface of the sound wave motor is provided with the buffer seat, the anti-seismic protection seat and the flexible cushion pad which are made of rubber materials; according to the electric toothbrush, the anti-vibration buffering performance during working of the sound wave motor can be improved, the vibration noise during working of the sound wave motor can be reduced, the service life of the electric toothbrush can be prolonged, the working noise of the sound wave motor can be further reduced through matched arrangement of the noise reduction layer and the sound insulation pad, and therefore the mute effect of the electric toothbrush is improved.

Description

Technical Field

[0001] The utility model relates to the field of sonic wave motors, in particular to an improved sonic wave motor with a rotor fixed by direct riveting. Background Art

[0002] The core component of a sonic toothbrush is the sonic motor. Currently, sonic motors are divided into two types: mechanical and magnetic levitation types according to the rotor return method. The magnetic levitation type uses the symmetrical attraction of the four magnetic poles to keep the rotor balanced, and the direction of the rotor magnetic field always returns to a position that maintains a certain angle with the driving magnetic field, so that it can respond to the maximum when driven. The mechanical type uses mechanical power to overcome the magnetic field attraction, so that the rotor magnetic field returns to a position that maintains a certain angle with the driving magnetic field, so that the drive can respond. However, the existing sonic motors have poor performance in vibration and noise reduction, resulting in poor silencing effect of electric toothbrushes and affecting the service life of sonic motors.

[0003] In order to solve the above problems, an improved ultrasonic motor with a rotor directly riveted is proposed. Utility Model Content

[0004] The utility model aims to provide an improved ultrasonic motor with a rotor fixed by direct riveting, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an improved ultrasonic motor with a rotor directly riveted, comprising a shell, a back cover is snap-fitted at one end of the shell, a mounting frame is arranged in the middle of the inner side of the shell, an iron core is fixedly arranged in the middle of the mounting frame, two coils are arranged on the surface of the mounting frame, magnets are arranged on both sides of the mounting frame, a buffer seat is fixedly arranged at one end of the shell surface, an anti-seismic protection seat is fixedly arranged on the surface of the back cover, a sound-absorbing layer is fixedly arranged in the middle of the shell surface, a sound insulation pad is fixedly arranged on the surface of the sound-absorbing layer, a flexible buffer pad is fixedly arranged on the surface of the sound insulation pad, and the sound-absorbing layer, the sound insulation pad and the flexible buffer pad are all fixedly connected to the buffer seat.

[0006] By arranging a buffer seat, an anti-vibration protection seat and a flexible buffer pad made of rubber material on the surface of the sonic motor, the anti-vibration buffering performance of the sonic motor during operation can be improved, which can not only reduce the vibration noise of the sonic motor during operation, but also extend the service life of the electric toothbrush. The coordinated arrangement of the sound-absorbing layer and the sound-insulating pad can further reduce the working noise of the sonic motor, thereby improving the quiet effect of the electric toothbrush.

[0007] Preferably, a seating groove is provided at one end of the mounting frame, an output shaft is fixedly arranged inside the seating groove, the output shaft extends to the outside at one end away from the seating groove, a connecting seat is fixedly arranged at one end of the shell away from the rear cover, a bearing is arranged inside the connecting seat, the bearing is arranged corresponding to the output shaft, and the stable rotation of the output shaft can be ensured by the arrangement of the bearing.

[0008] Preferably, the buffer seat, anti-vibration protection seat and flexible buffer pad are all made of rubber material. By arranging the buffer seat, anti-vibration protection seat and flexible buffer pad made of rubber material on the surface of the sonic motor, the anti-vibration buffering performance of the sonic motor during operation can be improved.

[0009] Preferably, an elastic connecting member is fixedly provided at one end of the mounting frame away from the accommodating groove, and one end of the elastic connecting member away from the mounting frame is fixedly connected to the rear cover.

[0010] Preferably, a plurality of connection slots are provided at the connection between the shell and the back cover, and a plurality of connection blocks are fixedly provided at the connection between the back cover and the shell. The plurality of connection blocks are respectively engaged with the plurality of connection slots, so that the back cover can be quickly installed on the shell by respectively engaging the plurality of connection slots with the plurality of connection blocks.

[0011] Preferably, one end of the two coils is fixedly connected with a lead wire, and one end of the two lead wires away from the coils passes through the back cover and extends to the outside.

[0012] Preferably, a protective sleeve is provided at the connection between the back cover and the two leads. The provision of the protective sleeve can protect the leads and prevent the connection between the leads and the back cover from breaking.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] By arranging a buffer seat, an anti-vibration protection seat and a flexible buffer pad made of rubber material on the surface of the sonic motor, the anti-vibration buffering performance of the sonic motor during operation can be improved, which can not only reduce the vibration noise of the sonic motor during operation, but also extend the service life of the electric toothbrush. The coordinated arrangement of the sound-absorbing layer and the sound-insulating pad can further reduce the working noise of the sonic motor, thereby improving the quiet effect of the electric toothbrush. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the first stereogram of the utility model;

[0016] Figure 2 It is a second stereoscopic view of the utility model;

[0017] Figure 3 It is a front cross-sectional view of the utility model;

[0018] Figure 4 It is an enlarged view of part A of the utility model.

[0019] In the figure: 1. shell; 2. back cover; 3. connecting block; 4. connecting slot; 5. output shaft; 6. lead wire; 7. protective sleeve; 8. buffer seat; 9. earthquake protection seat; 10. flexible buffer pad; 11. connecting seat; 12. mounting frame; 13. iron core; 14. coil; 15. magnet; 16. mounting slot; 17. bearing; 18. elastic connector; 19. sound-absorbing layer; 20. sound insulation pad. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] See also Figure 1-4 The utility model provides an improved rotor direct riveting fixed sonic wave motor, comprising a shell 1, one end of the shell 1 is clamped with a back cover 2, a mounting frame 12 is arranged in the middle of the inner side of the shell 1, an iron core 13 is fixedly arranged in the middle of the mounting frame 12, two coils 14 are arranged on the surface of the mounting frame 12, magnets 15 are arranged on both sides of the mounting frame 12, a buffer seat 8 is fixedly arranged on one end of the surface of the shell 1, an anti-seismic protection seat 9 is fixedly arranged on the surface of the back cover 2, a sound-absorbing layer 19 is fixedly arranged in the middle of the surface of the shell 1, and a sound-absorbing pad 20 is fixedly arranged on the surface of the sound-absorbing layer 19. A flexible buffer pad 10 is fixedly arranged on the surface of the sound pad 20, and the sound-absorbing layer 19, the sound-insulating pad 20 and the flexible buffer pad 10 are all fixedly connected to the buffer seat 8. By arranging the buffer seat 8, the anti-vibration protection seat 9 and the flexible buffer pad 10 made of rubber material on the surface of the sonic motor, the anti-vibration buffering performance of the sonic motor during operation can be improved, which can not only reduce the vibration noise of the sonic motor during operation, but also extend the service life of the electric toothbrush. The coordinated arrangement of the sound-absorbing layer 19 and the sound-insulating pad 20 can further reduce the working noise of the sonic motor, thereby improving the quiet effect of the electric toothbrush.

[0022] A placement groove 16 is provided at one end of the mounting frame 12, and an output shaft 5 is fixedly provided inside the placement groove 16, and an end of the output shaft 5 away from the placement groove 16 extends to the outside, a connecting seat 11 is fixedly provided at one end of the housing 1 away from the rear cover 2, a bearing 17 is provided inside the connecting seat 11, and the bearing 17 is arranged corresponding to the output shaft 5, the buffer seat 8, the anti-seismic protection seat 9 and the flexible buffer pad 10 are all made of rubber material, and an elastic connector 18 is fixedly provided at one end of the mounting frame 12 away from the placement groove 16, and the end of the elastic connector 18 away from the mounting frame 12 is fixedly connected to the rear cover 2;

[0023] When in use, the stable rotation of the output shaft 5 can be ensured by setting the bearing 17, and the anti-seismic buffering performance of the sonic motor can be improved by setting a buffer seat 8, an anti-seismic protection seat 9 and a flexible buffer pad 10 made of rubber material on the surface of the sonic motor;

[0024] A plurality of connection slots 4 are provided at the connection between the housing 1 and the rear cover 2. A plurality of connection blocks 3 are fixedly provided at the connection between the rear cover 2 and the housing 1. The plurality of connection blocks 3 are respectively engaged with the plurality of connection slots 4. One end of the two coils 14 is fixedly connected with a lead wire 6. One end of the two lead wires 6 away from the coils 14 passes through the rear cover 2 and extends to the outside. A protective cover 7 is provided at the connection between the rear cover 2 and the two lead wires 6.

[0025] When in use, the back cover 2 can be quickly installed on the housing 1 through a plurality of connection blocks 3 and a plurality of connection slots 4. The provision of the protective sleeve 7 can protect the lead 6 and prevent the connection between the lead 6 and the back cover 2 from breaking.

[0026] When the embodiment of the present application is in use: the sonic motor is installed inside the electric toothbrush. During operation, a buffer seat 8, an anti-vibration protection seat 9 and a flexible buffer pad 10 made of rubber material are arranged on the surface of the sonic motor, so that the anti-vibration buffering performance of the sonic motor during operation can be improved, which can not only reduce the vibration noise of the sonic motor during operation, but also extend the service life of the electric toothbrush. The coordinated arrangement of the sound-absorbing layer 19 and the sound-insulating pad 20 can further reduce the working noise of the sonic motor, thereby improving the quiet effect of the electric toothbrush. When in use, the setting of the protective cover 7 can protect the lead 6 to avoid breakage at the connection between the lead 6 and the back cover 2.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An improved ultrasonic motor with a rotor fixed by direct riveting, comprising a housing (1), characterized in that: A rear cover (2) is snap-fitted onto one end of the shell (1); a mounting frame (12) is disposed in the middle of the inner side of the shell (1); an iron core (13) is fixedly disposed in the middle of the mounting frame (12); two coils (14) are disposed on the surface of the mounting frame (12); magnets (15) are disposed on both sides of the mounting frame (12); a buffer seat (8) is fixedly disposed on one end of the surface of the shell (1); an anti-vibration protection seat (9) is fixedly disposed on the surface of the rear cover (2); a sound-absorbing layer (19) is fixedly disposed in the middle of the surface of the shell (1); a sound-insulating pad (20) is fixedly disposed on the surface of the sound-absorbing layer (19); a flexible buffer pad (10) is fixedly disposed on the surface of the sound-insulating pad (20); and the sound-absorbing layer (19), the sound-insulating pad (20) and the flexible buffer pad (10) are all fixedly connected to the buffer seat (8).

2. The improved rotor direct riveting sonic motor according to claim 1 is characterized in that: A placement groove (16) is provided at one end of the mounting frame (12), an output shaft (5) is fixedly arranged inside the placement groove (16), and an end of the output shaft (5) away from the placement groove (16) extends to the outside, and a connecting seat (11) is fixedly arranged at one end of the housing (1) away from the rear cover (2), a bearing (17) is arranged inside the connecting seat (11), and the bearing (17) is arranged corresponding to the output shaft (5).

3. The improved rotor direct riveting sonic motor according to claim 1 is characterized in that: The buffer seat (8), the anti-vibration protection seat (9) and the flexible buffer pad (10) are all made of rubber material.

4. The improved rotor direct riveting sonic motor according to claim 2 is characterized in that: An elastic connecting member (18) is fixedly provided at one end of the mounting frame (12) away from the placement groove (16), and the end of the elastic connecting member (18) away from the mounting frame (12) is fixedly connected to the rear cover (2).

5. The improved rotor direct riveting sonic motor according to claim 1 is characterized in that: A plurality of connection slots (4) are provided at the connection between the shell (1) and the rear cover (2), and a plurality of connection blocks (3) are fixedly provided at the connection between the rear cover (2) and the shell (1), and the plurality of connection blocks (3) are respectively engaged and connected with the plurality of connection slots (4).

6. The improved rotor direct riveting sonic motor according to claim 1 is characterized in that: One end of each of the two coils (14) is fixedly connected to a lead wire (6), and one end of each of the two lead wires (6) away from the coil (14) passes through the back cover (2) and extends to the outside.

7. The improved rotor direct riveting sonic motor according to claim 6 is characterized by: A protective sleeve (7) is provided at the connection between the rear cover (2) and the two leads (6).

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