CN216751490U - Low-noise sound wave motor - Google Patents
Low-noise sound wave motor Download PDFInfo
- Publication number
- CN216751490U CN216751490U CN202220054593.XU CN202220054593U CN216751490U CN 216751490 U CN216751490 U CN 216751490U CN 202220054593 U CN202220054593 U CN 202220054593U CN 216751490 U CN216751490 U CN 216751490U
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- China
- Prior art keywords
- bearing
- rotor shaft
- rotor
- wave motor
- tailstock
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- 239000003292 glue Substances 0.000 claims abstract description 15
- 238000013016 damping Methods 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 238000004663 powder metallurgy Methods 0.000 abstract description 4
- 238000005096 rolling process Methods 0.000 description 7
- 239000012634 fragment Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 235000015110 jellies Nutrition 0.000 description 3
- 239000008274 jelly Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
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- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a low-noise sound wave motor, which belongs to the technical field of sound wave motors and comprises a shell, wherein a stator component is arranged on the inner wall of the shell, a rotor component is also rotated in the shell, a tailstock is arranged at one end of the shell, the rotor component comprises a rotor shaft, one end of the rotor shaft is connected with the tailstock through a second bearing, the other end of the rotor shaft is connected with the shell through a first bearing, an output shaft is further connected to one end, connected with the first bearing, of the rotor shaft, and the second bearing is a powder bearing. The second bearing adopts a powder metallurgy bearing, so that the use cost is lower, and simultaneously, before the second bearing is assembled with the rotor shaft, damping glue is firstly dispensed on the inner wall of the second bearing and then assembled with the rotor shaft, the damping glue is distributed on the inner wall of the second bearing and nearby, and a wrapping state is formed on the end part of the rotor shaft, so that the small-angle forward and backward rotation of the rotor shaft is not blocked, and the noise generated by the collision of the rotor shaft and the inner wall of the second bearing can be avoided.
Description
Technical Field
The utility model belongs to the technical field of sound wave motors, and particularly relates to a low-noise sound wave motor.
Background
At present, the sound wave motor used for the electric toothbrush in the market is mainly divided into two designs from the design of a tailstock assembly (also called a rear cover assembly), wherein one design is that the tailstock contains a rolling bearing, namely two ends of a rotor shaft are fixed on two bearings; the other type is that the tail seat does not contain a rolling bearing, but one end of a metal elastic sheet is embedded in the tail seat, the other end of the metal elastic sheet is fixed on the rotor shaft, namely, one end of the rotor shaft is fixed on the rear cover through the metal elastic sheet, and the other end of the rotor shaft penetrates through the rolling bearing of the machine shell;
for the design containing two rolling bearings, in the high-frequency vibration process of 200-400Hz, the vibration noise is easy to generate, and the cost of the rolling bearings is high; in the other design mode, one end of the rotor shaft is completely fixed by the elastic sheet, the reliability of the motor is affected if the elastic sheet is thin, the vibration is affected if the rotation of the rotor is blocked, and the elastic sheet is also complex to fix and has the risk of looseness.
SUMMERY OF THE UTILITY MODEL
To solve the problems set forth in the background art described above. The utility model provides a low-noise sound wave motor which has the characteristics of low noise and low production cost.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a low noise sound wave motor, which comprises a housing, be equipped with stator module on the inner wall of casing, the inside of casing has still rotated the rotor subassembly, the one end of casing is equipped with the tailstock, the rotor subassembly includes the rotor shaft, the one end and the tailstock of rotor shaft pass through the second bearing to be connected, and the other end and the casing of rotor shaft pass through first bearing to be connected, one of rotor shaft and first bearing connection is served and still is connected with the output shaft, the second bearing is powder bearing, be equipped with the damping between second bearing and the rotor shaft and glue.
In order to form an electric field when the rotor assembly is electrified, the rotor assembly further comprises an iron core, the iron core is sleeved outside the rotor shaft, and a coil is wound on the iron core.
In order to be used for connecting the power, further, the rotor subassembly still includes spring assembly, and spring assembly sets up in the one end that the rotor shaft is close to the tailstock.
In order to limit the position of the rotor assembly, a sleeve close to the first bearing is further sleeved on the rotor shaft. The sleeve is of a T-shaped structure.
Compared with the prior art, the utility model has the beneficial effects that:
the second bearing adopts a powder metallurgy bearing, compared with a rolling bearing adopted in the prior art, the use cost is lower, meanwhile, before the second bearing is assembled with the rotor shaft, damping glue is firstly dispensed on the inner wall of the second bearing, then the second bearing is assembled with the rotor shaft, the damping glue is distributed on the inner wall of the second bearing and nearby, a wrapping state is formed on the end part of the rotor shaft, the shape of the second bearing is similar to a jelly shape, the second bearing has certain elasticity and hardness, the small-angle forward and reverse rotation of the rotor shaft can not be blocked, and the noise generated by the impact of the rotor shaft and the inner wall of the second bearing can also be avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is an exploded view of the structure of the present invention;
FIG. 2 is a schematic view of a rotor assembly according to the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is a partial schematic view of the rotor shaft and the second bearing according to the present invention;
in the figure: 1. a first bearing; 2. a housing; 3. a stator assembly; 4. an output shaft; 5. a rotor assembly; 6. a second bearing; 7. a tailstock; 8. a sleeve; 9. an iron core; 10. a rotor shaft; 11. a coil; 12. a spring assembly; 13. and (5) damping glue.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-4, the present invention provides the following technical solutions: the utility model provides a low noise sound wave motor, which comprises a housing 2, be equipped with stator module 3 on the inner wall of casing 2, stator module 3 includes plastic frame and magnetic shoe, the magnetic shoe bonds with the plastic frame, the plastic frame bonds through the inside of glue with casing 2, the inside of casing 2 still rotates there is rotor subassembly 5 that is located stator module 3 inside, the one end of casing 2 is equipped with tailstock 7, rotor subassembly 5 includes rotor shaft 10, the one end and the tailstock 7 of rotor shaft 10 are connected through second bearing 6, and the other end and the casing 2 of rotor shaft 10 are connected through first bearing 1, still be connected with output shaft 4 on the one end that rotor shaft 10 and first bearing 1 are connected, second bearing 6 is the powder bearing, be equipped with damping between second bearing 6 and the rotor shaft 10 and glue 13, damping glue 13 is preferably UV4500 type glue.
Through adopting above-mentioned technical scheme, second bearing 6 adopts powder metallurgy bearing, compare in adopting antifriction bearing among the prior art, use cost is lower, and simultaneously, before second bearing 6 assembles with rotor shaft 10, earlier 13 on the inner wall of second bearing 6 is glued in the point damping, then assemble with rotor shaft 10, damping glue 13 can distribute at 6 inner walls of second bearing and near, to rotor shaft 10 tip formation parcel state, similar jelly form, there is certain elasticity and hardness, the positive and negative rotation of the small-angle that neither can block rotor shaft 10, can avoid rotor shaft 10 again and 6 inner wall clashes noise generation.
Specifically, the rotor assembly 5 further comprises an iron core 9, the iron core 9 is sleeved outside the rotor shaft 10, and a coil 11 is wound on the iron core 9.
By adopting the technical scheme, an electric field is formed when the coil 11 is electrified.
Specifically, the rotor assembly 5 further includes a spring assembly 12, and the spring assembly 12 is disposed at an end of the rotor shaft 10 close to the tailstock 7.
Through adopting above-mentioned technical scheme, spring assembly 12 includes fixing base and two shell fragments, and wherein, the fixing base assembly is on rotor shaft 10, and the moulding plastics of two shell fragments symmetries are in the fixing base, and the one end that the shell fragment exposes still passes tailstock 7 and bonds through glue with tailstock 7 with the end of a thread welded connection of coil 11, and the other end of shell fragment is used for connecting the power.
Example 2
The present embodiment is different from embodiment 1 in that: specifically, the rotor shaft 10 is sleeved with a sleeve 8 close to the first bearing 1. The sleeve 8 is of a T-shaped structure.
Through adopting above-mentioned technical scheme, carry out spacing through sleeve pipe 8 to rotor subassembly 5.
In summary, the second bearing 6 of the present invention is made of powder metallurgy bearing, compared with the rolling bearing in the prior art, the use cost is lower, meanwhile, before the second bearing 6 is assembled with the rotor shaft 10, the damping glue 13 is dispensed on the inner wall of the second bearing 6, and then the second bearing is assembled with the rotor shaft 10, the damping glue 13 is distributed on the inner wall of the second bearing 6 and near the inner wall, so as to form a wrapping state for the end of the rotor shaft 10, which is similar to jelly shape, has certain elasticity and hardness, and can not block the small-angle forward and reverse rotation of the rotor shaft 10, but also avoid the noise generated by the impact between the rotor shaft 10 and the inner wall of the second bearing 6.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A low noise sound wave motor, includes casing, its characterized in that: be equipped with stator module on the inner wall of casing, the inside of casing still rotates there is the rotor subassembly, the one end of casing is equipped with the tailstock, the rotor subassembly includes the rotor shaft, the one end and the tailstock of rotor shaft pass through the second bearing to be connected, and the other end and the casing of rotor shaft pass through first bearing to be connected, one of rotor shaft and first bearing connection serves and still is connected with the output shaft, the second bearing is powder bearing, be equipped with the damping between second bearing and the rotor shaft and glue.
2. A low noise acoustic wave motor in accordance with claim 1, wherein: the rotor subassembly still includes the iron core, and the iron core cover is established in the outside of rotor shaft, and the coiling has the coil on the iron core.
3. A low noise acoustic wave motor in accordance with claim 1, wherein: the rotor subassembly still includes spring assembly, and spring assembly sets up in the one end that the rotor shaft is close to the tailstock.
4. A low noise acoustic wave motor in accordance with claim 1, wherein: the rotor shaft is sleeved with a sleeve close to the first bearing.
5. A low noise acoustic wave motor in accordance with claim 1, wherein: the sleeve is of a T-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220054593.XU CN216751490U (en) | 2022-01-07 | 2022-01-07 | Low-noise sound wave motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220054593.XU CN216751490U (en) | 2022-01-07 | 2022-01-07 | Low-noise sound wave motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216751490U true CN216751490U (en) | 2022-06-14 |
Family
ID=81912108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220054593.XU Active CN216751490U (en) | 2022-01-07 | 2022-01-07 | Low-noise sound wave motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216751490U (en) |
-
2022
- 2022-01-07 CN CN202220054593.XU patent/CN216751490U/en active Active
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