CN203911714U - Resonance-based high-frequency vibration motor - Google Patents
Resonance-based high-frequency vibration motor Download PDFInfo
- Publication number
- CN203911714U CN203911714U CN201420299782.9U CN201420299782U CN203911714U CN 203911714 U CN203911714 U CN 203911714U CN 201420299782 U CN201420299782 U CN 201420299782U CN 203911714 U CN203911714 U CN 203911714U
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- Prior art keywords
- motor
- rotor
- elastic shaft
- shaft
- electric machine
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Abstract
The utility model relates to a resonance-based high-frequency vibration motor. The motor comprises a motor shell, a rotor shaft, and an electromagnetic drive assembly. The rotor shaft is rotatably connected to the motor shell through a bearing. The electromagnetic drive assembly comprises a permanent magnet set, a rotor core, and a rotor winding. The motor shell is also internally provided with an elastic shaft which can distort and deform along with the rotation of the rotor shaft. The front end of the elastic shaft is fixedly connected with the rear end of the rotor shaft while the rear end of the elastic shaft is fixedly mounted on the motor shell. According to the utility model, the motor is provided with the elastic shaft which can distort and deform along with the rotation of the rotor shaft and by adjusting the structural size of the elastic shaft, the inherent frequency of the motor can be changed. The electromagnetic drive assembly drives the rotor shaft and further excites the elastic shaft and when the frequencies of the rotor shaft and the elastic shaft are equal or nearly equal, resonance can be generated so that the rotor shaft is enabled to move back and forth along the axis at a high frequency within a certain amplitude range and the output power is high.
Description
Technical field
The utility model relates to a kind of rotary oscillation electric machine structure, particularly relates to a kind of dither motor based on resonance.
Background technology
Along with social development, people more and more pay attention to the quality of life, therefore, personal health care product, as more and more universal in the utilization of the Related products such as electric toothbrush, electronic clean instrument, electric shaver.In above-mentioned product, all be unable to do without drive disk assembly motor, at present traditional drive mechanism is mainly that electric rotating machine is connected, is with eccentric electric rotating machine etc. to be connected with driving arrangement with driving shaft, obtain revolving force, realize required function, but vibration frequency is low, useful life is short and noise is large.
Chinese patent (the patent No.: 200620062958.4) disclose a kind of motor: be wound with coil on two coil holders, some permanent magnets are arranged on below and the top of coil, coil holder, coil and permanent magnet are fixedly mounted on the inwall of motor casing, iron core is installed on rotor axis of electric, the adjacent installation of iron core and coil, in the time passing through alternating current in coil, will produce alternating magnetic field, thus drive motors rotor rotary vibration; This high-frequency electric machines, because coil is fixedly mounted in motor housing, is structurally difficult for miniaturization; In addition, before and after rotor axis of electric is movably arranged on, in two bearings, due to the effect of inertia of rotor, in the time that alternating magnetic field changes, rotor can not be synchronously corresponding rapidly, and consequently amplitude of fluctuation is little, and power output is limited.
Utility model content
The purpose of this utility model is to provide for above-mentioned shortcomings and deficiencies of the prior art a kind of miniaturization and large dither motor based on resonance of power output of being easy to.
The purpose of this utility model is realized by following technical scheme.
Based on a dither motor for resonance, comprise electric machine casing, armature spindle and electromagnetic drive component; It is characterized in that: described armature spindle is rotatably connected on described electric machine casing by a front end bearing and a rear end bearing; Described electromagnetic drive component comprises set of permanent magnets, rotor core, rotor winding, described rotor core is fixedly mounted on armature spindle, described rotor winding technique is on rotor core, and described set of permanent magnets is fixedly mounted on the inwall of the electric machine casing that is positioned at the upper and lower both sides of described rotor core; In described electric machine casing, being also provided with one can rotate and the elastic shaft of torsional deformation with described armature spindle, and the front end of this elastic shaft is fixedly connected with the rear end of armature spindle, and rear end is fixedly mounted on described electric machine casing.
Further, described electric machine casing is made up of motor housing, motor front end cover and back end cover for motor, and described motor front end cover and back end cover for motor are fixedly connected on the front and back end of motor housing.
Further, described front end bearing and rear end bearing are rolling bearing, or sliding bearing, or resilient bearing.
Further, described elastic shaft is to be fixedly connected with armature spindle, or integrally manufactured.
Further, described elastic shaft is reed or torsion spring.
Compared with prior art, the advantage of the dither motor based on resonance described in the utility model is:
1, the utility model is also provided with one and can rotates and the elastic shaft of torsional deformation with described armature spindle in described electric machine casing, will change the natural frequency of motor by the physical dimension of adjusting elastic shaft; Thereby electromagnetic drive component rotor driven axle excitation elastic shaft, when both frequencies reach or approach when consistent, produces resonance, thereby realize armature spindle moving back and forth along axis high frequency within the scope of the amplitude of oscillation necessarily, power output is large.
2, elastic shaft of the present utility model is to be fixedly connected with armature spindle, or integrally manufactured, when under the effect of rotor at magnetic field force when forward rotary oscillation, portion of energy will be stored in elastic shaft with elastic potential energy, change sense of current in rotor winding, magnetic field force will make rotor reversed turning swing, now, the elastic potential energy being stored in elastic shaft swings the reversed turning discharging to accelerate rotor, thereby make rotary oscillation output power of motor of the present utility model large, energy conversion efficiency is high.
Brief description of the drawings
Fig. 1 is the structural representation of the dither motor of the utility model based on resonance.
In figure: 1 motor housing, 2 motor front end covers, 3 back end cover for motor, 4 set of permanent magnets, 5 front end bearings, 6 rear end bearings, 7 armature spindles, 8 rotor cores, 9 rotor windings, 10 elastic shafts.
Embodiment
Further describe structure of the present utility model below in conjunction with accompanying drawing 1.
Based on a dither motor for resonance, comprise electric machine casing, armature spindle 7 and electromagnetic drive component; Described armature spindle 7 is rotatably connected on described electric machine casing by a front end bearing 5 and a rear end bearing 6; Described electromagnetic drive component comprises set of permanent magnets 4, rotor core 8, rotor winding 9, described rotor core 8 is fixedly mounted on armature spindle 7, described rotor winding 9 is wound on rotor core 8, and described set of permanent magnets 4 is fixedly mounted on the inwall that is positioned at described rotor core electric machine casing of both sides Shang Xia 8; In described electric machine casing, being also provided with one can rotate and the elastic shaft 10 of torsional deformation with described armature spindle 7, and the front end of this elastic shaft 10 is fixedly connected with the rear end of armature spindle 7, and rear end is fixedly mounted on described electric machine casing.The physical dimension (diameter and length) of adjusting elastic shaft 10 will change the natural frequency of motor; In the time that rotor winding 9 passes through alternating current, to produce alternating magnetic field, this alternating magnetic field and adjacent set of permanent magnets 4 interact, make armature spindle 7 rotary oscillations, adjusting the frequency of alternating current makes the natural frequency of itself and motor close, near motor rotary oscillation its resonance frequency, power output is large.
Described electric machine casing is made up of motor housing 1, motor front end cover 2 and back end cover for motor 3, and described motor front end cover 2 and back end cover for motor 3 are fixedly connected on the front and back end of motor housing 1.
Described front end bearing 5 and rear end bearing 6 are rolling bearing, or sliding bearing, or resilient bearing.
Described elastic shaft 10 is to be fixedly connected with armature spindle 7, or integrally manufactured, and described elastic shaft 10 is reed or torsion spring.When under the effect of rotor at magnetic field force when forward rotary oscillation, portion of energy will be stored in elastic shaft 10 with elastic potential energy, change sense of current in rotor winding 9, magnetic field force will make rotor reversed turning swing, now, the elastic potential energy being stored in elastic shaft 10 swings the reversed turning discharging to accelerate rotor, thereby makes rotary oscillation output power of motor of the present utility model large, and energy conversion efficiency is high.
More than show and described general principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; under the prerequisite that does not depart from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. the dither motor based on resonance, comprises electric machine casing, armature spindle (7) and electromagnetic drive component; It is characterized in that: described armature spindle (7) is rotatably connected on described electric machine casing by a front end bearing (5) and a rear end bearing (6); Described electromagnetic drive component comprises set of permanent magnets (4), rotor core (8), rotor winding (9), described rotor core (8) is fixedly mounted on armature spindle (7), it is upper that described rotor winding (9) is wound on rotor core (8), and described set of permanent magnets (4) is fixedly mounted on the inwall of the electric machine casing that is positioned at the upper and lower both sides of described rotor core (8); In described electric machine casing, being also provided with one can rotate and the elastic shaft (10) of torsional deformation with described armature spindle (7), the front end of this elastic shaft (10) is fixedly connected with the rear end of armature spindle (7), and rear end is fixedly mounted on described electric machine casing.
2. a kind of dither motor based on resonance according to claim 1, it is characterized in that: described electric machine casing is made up of motor housing (1), motor front end cover (2) and back end cover for motor (3), described motor front end cover (2) and back end cover for motor (3) are fixedly connected on the front and back end of motor housing (1).
3. a kind of dither motor based on resonance according to claim 1 and 2, is characterized in that: described front end bearing (5) and rear end bearing (6) are rolling bearing, or sliding bearing, or resilient bearing.
4. a kind of dither motor based on resonance according to claim 1 and 2, is characterized in that: described elastic shaft (10) is to be fixedly connected with armature spindle (7), or integrally manufactured.
5. a kind of dither motor based on resonance according to claim 1 and 2, is characterized in that: described elastic shaft (10) is reed or torsion spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420299782.9U CN203911714U (en) | 2014-06-06 | 2014-06-06 | Resonance-based high-frequency vibration motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420299782.9U CN203911714U (en) | 2014-06-06 | 2014-06-06 | Resonance-based high-frequency vibration motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203911714U true CN203911714U (en) | 2014-10-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420299782.9U Expired - Fee Related CN203911714U (en) | 2014-06-06 | 2014-06-06 | Resonance-based high-frequency vibration motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN203911714U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604543A (en) * | 2015-12-18 | 2016-05-25 | 中国海洋石油总公司 | Rocking valve mud pulse generator transmission system |
| CN107035689A (en) * | 2017-06-08 | 2017-08-11 | 浙江德拉戈机械有限公司 | A kind of twin-screw efficient permanent magnet air compressor machine |
| CN108712050A (en) * | 2018-07-26 | 2018-10-26 | 广州薇美姿实业有限公司 | A kind of electric toothbrush with linear vibration electric motor |
-
2014
- 2014-06-06 CN CN201420299782.9U patent/CN203911714U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604543A (en) * | 2015-12-18 | 2016-05-25 | 中国海洋石油总公司 | Rocking valve mud pulse generator transmission system |
| CN107035689A (en) * | 2017-06-08 | 2017-08-11 | 浙江德拉戈机械有限公司 | A kind of twin-screw efficient permanent magnet air compressor machine |
| CN108712050A (en) * | 2018-07-26 | 2018-10-26 | 广州薇美姿实业有限公司 | A kind of electric toothbrush with linear vibration electric motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20150606 |
|
| EXPY | Termination of patent right or utility model |