CN109698564A - A kind of high frequency fixed angle motor - Google Patents
A kind of high frequency fixed angle motor Download PDFInfo
- Publication number
- CN109698564A CN109698564A CN201910090723.8A CN201910090723A CN109698564A CN 109698564 A CN109698564 A CN 109698564A CN 201910090723 A CN201910090723 A CN 201910090723A CN 109698564 A CN109698564 A CN 109698564A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- high frequency
- fixed angle
- rotor assembly
- magnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/223—Rotor cores with windings and permanent magnets
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/221—Control arrangements therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/32—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
- A61C17/34—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The present invention relates to the technical field of motor, specially a kind of high frequency fixed angle motor, including motor case, and the rotor assembly and stator module that are separately positioned in the motor case；The rotor assembly is arranged between the stator module, and the high frequency fixed angle motor further includes the first permanent magnet and limit magnet assembly；The limit magnet assembly is fixed at the side in the motor case and being located at the rotor assembly, and the limit magnet assembly includes symmetrically arranged two second permanent magnet；First permanent magnet is fixed on the rotor assembly and between two second permanent magnet；The magnetic pole of first permanent magnet and second permanent magnet is mutually exclusive, when the high frequency fixed angle motor operations, makes rotor assembly reciprocating rotation in the angular range of setting；First permanent magnet and the limit magnet assembly are limited and are resetted to the rotor assembly, and structure is more stable, long service life, low noise.
Description
Technical field
The present invention relates to the technical field of motor, specially a kind of high frequency fixed angle motor.
Background technique
Electric toothbrush is the new product occurred in recent years, has started a revolution of oral hygiene in foreign countries.Though
Application of the right electric toothbrush in China is not popularized still, but someone predicts, it will become important a member in public health care product.It adjusts
Display is looked into, electric toothbrush is more scientific effective compared with ordinary toothbrush.Can more thoroughly remove plaque, reduce gingivitis and
Bleeding gums, and the generally popular daily necessities of American-European many countries at present.And electric toothbrush produces brush head by quickly rotating
Toothpaste is resolved into subtle foam, deeply cleans teeth space by raw high-frequency vibration, moment；At the same time, the trembling of bristle can promote mouth
The blood circulation of chamber has unexpected massage effect to gingiva tissue.
Divide from principle, electric tooth is brushed with two major classes: rotation and vibration.The toothbrush principle for rotating class is simple, is exactly electronic
Machine drives round brush head rotation, reinforces friction effect while executing common brushing action.The toothbrush of oscillatory type is more complicated,
Also more high-end from price.The interior of vibration type has an electrically driven (operated) vibrating motor, and brush head can be allowed to generate and hung down
Directly in the swing in high frequency in brush handle direction, but the amplitude very little swung, generally 5 millimeters or so.One side high frequency when brushing teeth
The brush head of swing can efficiently be completed to scrub the movement of tooth, and on the other hand the vibration per minute more than 20000 times also allows in mouth
Toothpaste and the mixture of water generate a large amount of small bubbles, it is dirty that the pressure that when blistering explosion generates can go deep into teeth space cleaning
Dirt.
Existing toothbrush motor mostly uses spring or other elastic components to limit and reset the rotor in motor, tooth
Brush motor continuous service for a period of time after, the surface wetting of spring aoxidizes, and torsion reduction occurs, swinging pair degree is irregular, makes an uproar
Sound increases or shuts down phenomenon, and service life is short, therefore the application proposes improvement project regarding to the issue above.
Summary of the invention
Repelled each other the vibrating motor that principle limits rotational angle the purpose of the present invention is to provide a kind of using magnetic pole.
To achieve the above object, the invention provides the following technical scheme:
A kind of high frequency fixed angle motor, including motor case, and the rotor being separately positioned in the motor case
Component and stator module；The rotor assembly is arranged between the stator module, and the high frequency fixed angle motor further includes
First permanent magnet and limit magnet assembly；The limit magnet assembly is fixed in the motor case and is located at the rotor
The side of component, the limit magnet assembly include symmetrically arranged two second permanent magnet；First permanent magnet is fixed at
On the rotor assembly and between two second permanent magnets；The magnetic pole of first permanent magnet and second permanent magnet
It is mutually exclusive, when the high frequency fixed angle motor operations, make rotor assembly reciprocating rotation in the angular range of setting.
Preferably, the rotor assembly includes shaft, iron core and installation part equipped with winding；The shaft with it is described
Motor case rotation connection, the installation part are fixedly connected with the shaft, and the iron core is fixedly connected on the installation part,
First permanent magnet is fixed on the installation part.
Preferably, the motor case includes pedestal and the upper casing for being covered on the pedestal；The pedestal is equipped with rotation
Space, first permanent magnet are set in the rotation space, and second permanent magnet is fixed on the pedestal.
Preferably, the shaft is equipped with limit casing.
Preferably, elastomeric pad is additionally provided in the shaft.
Preferably, the rotational angle range of the shaft is between -30 ° to+30 °.
Preferably, first permanent magnet and second permanent magnet are magnet steel.
Compared with prior art, the beneficial effects of the present invention are:
1. spring motor in the prior art is replaced, by first permanent magnet and the limit magnet assembly to described
Rotor assembly is limited and is resetted, and structure is more stable, long service life, low noise；
2. increasing the magnetic force being subject to by the volume for increasing by first permanent magnet, magnetic field is efficiently utilized, is adjusted to institute
The motion range of rotor assembly is stated, while enhancing the torque of the high frequency fixed angle motor；
3. adding the limit casing and the elastomeric pad, optimize the space knot in the high frequency fixed angle motor
Structure reduces the gap being arranged in the shaft between spare and accessory parts, thus production when reducing the high frequency fixed angle motor operations
Raw noise.
Detailed description of the invention
Fig. 1 is detonation configuration figure of the invention；
Fig. 2 is front view of the invention；
Fig. 3 is the cross-sectional view of A-A in Fig. 2；
Fig. 4 is the cross-sectional view of B-B in Fig. 2；
Fig. 5 is the cross-sectional view of C-C in Fig. 2；
Fig. 6 is the structural schematic diagram of pedestal in the present invention；
Fig. 7 is test data table of the invention.
In figure: 1- motor case；2- rotor assembly；3- stator module；The first permanent magnet of 4-；5- limits magnet assembly；10-
Pedestal；11- upper casing；20- shaft；21- winding；22- iron core；23- installation part；30- magnetic shoe；The second permanent magnet of 50-；100- rotation
Space；200- installation space；201- limit casing；202- elastomeric pad.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be centering elements.Term as used herein "vertical", "horizontal", "left" and "right" and similar
Statement for illustrative purposes only, is not meant to be the only embodiment.
A kind of high frequency fixed angle motor, is applied in electric toothbrush, drives the brush head reciprocally swinging in electric toothbrush, such as
Shown in Fig. 1 to Fig. 6, the high frequency fixed angle motor includes motor case 1, and is separately positioned in the motor case 1
Rotor assembly 2 and stator module 3；The rotor assembly 2 is arranged between the stator module 3；The high frequency fixed angle
Motor further includes the first permanent magnet 4 and limit magnet assembly 5；The limit magnet assembly 5 is fixed in the motor case 1
And it is located at the side of the rotor assembly 2, the limit magnet assembly 5 includes symmetrically arranged two second permanent magnet 50；It is described
First permanent magnet 4 is fixed on the rotor assembly 2 and between two second permanent magnet 50；Two second permanent magnetism
The magnetic pole of formation magnetic field A between field 50, first permanent magnet 4 and second permanent magnet 50 is mutually exclusive, and the high frequency is solid
When determining angle motor work, make the rotor assembly 2 reciprocating rotation in the angular range of setting.
Two first permanent magnets 4 and the two limit magnet assemblies 5, two limits are provided in the present embodiment
Magnet assembly 5 is symmetrical arranged, and keeps the rotation of rotor assembly 2 more steady.
Specifically, the motor case 1 includes pedestal 10 and the upper casing 11 for being covered on the pedestal 10；On the pedestal 10
Equipped with rotation space 100, the two sides of the rotation space 100 are provided with installation space 200, and the installation space 200 is connected to institute
State rotation space 100.
Specifically, the stator module 3 includes two magnetic shoes 30, two magnetic shoe 30 is symmetrical arranged and is fixed on described
On the inner sidewall of shell 11, a magnetic field B is formed between two magnetic shoes 30.
Specifically, the rotor assembly 2 includes shaft 20, iron core 22 and installation part 23 equipped with winding 21.
One end rotation of the shaft 20 is set on the pedestal 10, and the other end rotation of the shaft 20 is set on described
On shell 11, the shaft 20 and the junction of the pedestal 10 and the upper casing 11 are respectively equipped with bearing, keep the shaft 20 flat
Steady rotation.
The installation part 23 is fixedly connected with the shaft 20, and one end of the installation part 23 connects with the iron core 22 is equipped with
It connects, the iron core 22 is between two magnetic shoes 30；The other end of the installation part 23 protrudes into the rotation space 100,
Second permanent magnet 20 is fixed at respectively in the installation space 200, and first permanent magnet 4 is fixed at the installation
On part 23 and between two second permanent magnets 20；The magnetic pole of first permanent magnet 4 and second permanent magnet 50
It is arranged between magnetic pole according to like pole, for example, described first is the pole N with one end of permanent magnet 4, described first uses permanent magnet 4
The other end be the pole S, and the pole N of second permanent magnet 20 towards described first with the pole N of permanent magnet 4, another described the
The pole S that permanent magnet 4 is used towards described first in the pole S of two permanent magnets 20.
When work, the winding 21 is powered, and the iron core 22 drives the shaft 20 to rotate by the installation part 23, when
When rotational angle is gradually increased, first permanent magnet 4 is increasingly closer to one in second permanent magnet 50, the basis
Magnet homopolarity mutual exclusion principle, the active force between final first permanent magnet 4 and second permanent magnet 50 are equal to described turn
The torque of axis 20, the shaft 20 stop operating, thus, the limit magnet assembly 5 realizes that the limit to the shaft 20 is made
With；The winding 21 passes through contrary electric current, active force of the winding 21 in the magnetic field B by opposite direction, institute
It states iron core 22 and drives the shaft 20 to rotate toward opposite direction by the installation part 23, first permanent magnet 4 is increasingly closer to
Another in second permanent magnet 50, until the active force between first permanent magnet 4 and second permanent magnet 50
Equal to the torque of the shaft 20, the shaft stops operating, to realize the reciprocating rotation of the shaft 20.
Specifically, the shaft 20 is equipped with limit casing 201 and elastomeric pad 202；One end of the elastomeric pad 202
It being abutted with the inner sidewall of the upper casing 11, the other end of the elastomeric pad 202 is abutted with one end of the limit casing 201,
The other end of the limit casing 201 is abutted in the iron core 22；The limit casing 201 and the elastomeric pad 202 are set,
Optimize the space structure in the high frequency fixed angle motor, reduce the gap being arranged in the shaft 20 between spare and accessory parts,
The noise generated when to reduce the high frequency fixed angle motor operations.
Specifically, the rotational angle range of the shaft 20 is between -30 ° to+30 °；It is tested through applicant's experiment
Out, the shaft 20 rotates within the above range, and the electric toothbrush is the most comfortable when using.
Specifically, first permanent magnet 4 and second permanent magnet 50 are magnet steel, high temperature resistant.
As shown in fig. 7, the present embodiment is by inputting 100 times per second energization frequencies to the high frequency fixed angle motor,
After described high frequency fixed angle motor operation 50 hours, the work for adding the pressure load of 200g to detect the high frequency fixed angle is turned round
Power and noise, obtain test data；Under the same conditions, the high frequency fixed angle motor and spring motor in the prior art
It compares, obtains the high frequency fixed angle motor, swing angle is maximum, and noise is minimum, service life highest.
The utility model has the advantages that
(1) spring motor in the prior art is replaced, it is right by first permanent magnet 4 and the limit magnet assembly 5
The rotor assembly 2 is limited and is resetted, and structure is more stable, long service life, low noise；
(2) by increasing the volume of first permanent magnet 4, increase the magnetic force being subject to, efficiently utilize magnetic field, adjusting pair
The motion range of the rotor assembly 2, while enhancing the torque of the high frequency fixed angle motor；
(3) limit casing 201 and the elastomeric pad 202 are added, is optimized in the high frequency fixed angle motor
Space structure reduces the gap being arranged in the shaft 20 between spare and accessory parts, to reduce the high frequency fixed angle motor
The noise generated when work
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of high frequency fixed angle motor, including motor case (1), and be separately positioned in the motor case (1)
Rotor assembly (2) and stator module (3)；The rotor assembly (2) is arranged between the stator module (3), which is characterized in that
The high frequency fixed angle motor further includes the first permanent magnet (4) and limit magnet assembly (5)；The limit magnet assembly (5)
It is fixed in the motor case (1) and is located at the side of the rotor assembly (2), the limit magnet assembly (5) includes
Symmetrically arranged two second permanent magnet (50)；First permanent magnet (4) is fixed on the rotor assembly (2) and is located at two
Between second permanent magnet (4)；The magnetic pole of first permanent magnet (4) and second permanent magnet (50) is mutually exclusive, institute
When stating high frequency fixed angle motor operations, make the rotor assembly (2) reciprocating rotation in the angular range of setting.
2. high frequency fixed angle motor according to claim 1, which is characterized in that the rotor assembly (2) includes shaft
(20), the iron core (22) and installation part (23) of winding (21) are equipped with；The shaft (20) and the motor case (2) rotate
Connection, the installation part (23) are fixedly connected with the shaft (20), and the iron core (22) is fixedly connected on the installation part
(23) on, first permanent magnet (4) is fixed on the installation part (23).
3. high frequency fixed angle motor according to claim 2, which is characterized in that the motor case (1) includes pedestal
(10) and it is covered on the upper casings (11) of the pedestal (10)；The pedestal (10) is equipped with rotation space (100), and described first forever
Magnet (4) is set in the rotation space (100), and second permanent magnet (50) is fixed on the pedestal (10).
4. high frequency fixed angle motor according to claim 2, which is characterized in that the shaft (20) is equipped with limit sleeve
It manages (201).
5. high frequency fixed angle motor according to claim 4, which is characterized in that be additionally provided with elasticity on the shaft (20)
Gasket (202).
6. according to any high frequency fixed angle motor of claim 2 to 5, which is characterized in that the shaft (20) turns
Dynamic angular range is between -30 ° to+30 °.
7. high frequency fixed angle motor according to any one of claims 1 to 5, which is characterized in that first permanent magnet (4)
It is magnet steel with second permanent magnet (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910090723.8A CN109698564B (en) | 2019-01-30 | 2019-01-30 | High-frequency fixed angle motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910090723.8A CN109698564B (en) | 2019-01-30 | 2019-01-30 | High-frequency fixed angle motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109698564A true CN109698564A (en) | 2019-04-30 |
| CN109698564B CN109698564B (en) | 2023-08-25 |
Family
ID=66234653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910090723.8A Active CN109698564B (en) | 2019-01-30 | 2019-01-30 | High-frequency fixed angle motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109698564B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021097705A1 (en) * | 2019-11-20 | 2021-05-27 | 广州市瑞宝电器有限公司 | Reciprocal rotation electric motor |
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| CN2181770Y (en) * | 1994-01-31 | 1994-11-02 | 薛立震 | Low-reluctance oscillating motor |
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| CN204835882U (en) * | 2015-08-20 | 2015-12-02 | 许万超 | Vibrating motor |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021097705A1 (en) * | 2019-11-20 | 2021-05-27 | 广州市瑞宝电器有限公司 | Reciprocal rotation electric motor |
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| Publication number | Publication date |
|---|---|
| CN109698564B (en) | 2023-08-25 |
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Address after: 523000, 7 building, 5 Industrial Zone, No. 3, Jun FA Road, Peng Wu Village, Dong Keng Town, Dongguan, Guangdong. Applicant after: Guangdong Tianfu Motor Technology Co.,Ltd. Address before: 523000, 7 building, 5 Industrial Zone, No. 3, Jun FA Road, Peng Wu Village, Dong Keng Town, Dongguan, Guangdong. Applicant before: DONGGUAN TIANFU MOTOR TECHNOLOGY Co.,Ltd. |
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