CN208028663U - Magnetic suspension motor - Google Patents
Magnetic suspension motor Download PDFInfo
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- CN208028663U CN208028663U CN201820142326.1U CN201820142326U CN208028663U CN 208028663 U CN208028663 U CN 208028663U CN 201820142326 U CN201820142326 U CN 201820142326U CN 208028663 U CN208028663 U CN 208028663U
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Abstract
A kind of magnetic suspension motor, including：Motor cabinet is internally provided with installation cavity；Magnetic pole group is set in the installation cavity body, is used to form magnetic field；Rotation axis group is rotatably held in by the field drives in the installation cavity body, and the rotation axis group has magnet and the rotation axis for externally exporting movement, the rotation axis group and the magnetic pole group coaxial arrangement.Magnetic suspension motor provided by the utility model has succinct mechanical transmission structure, so that the upper limit of output torque is significantly increased with magnetic field superposition gain, and avoid the yaw moment caused by eccentric moment, ensures that the output of magnetic suspension motor is steady.
Description
Technical field
The utility model belongs to technical field of motors, is a kind of magnetic suspension motor specifically.
Background technology
Toothbrush is a kind of brush for cleaning tooth, belongs to the necessity of people's life.With the development of science and technology,
Electric toothbrush occurs as new toothbrush form.Investigation display, electric toothbrush is more scientific and effective compared with ordinary toothbrush,
Plaque can be removed, reduce the mouth diseases such as gingivitis, periodontosis and bleeding gums, thus be increasingly subject to the welcome of people.
Current electric toothbrush is mainly based on vibration principle.Such electric toothbrush by electric core it is quick rotation or
Vibrations make brush head generate high-frequency vibration, and toothpaste is resolved into subtle foam, deeply cleans teeth space by moment；At the same time, bristle
Trembling can promote the blood circulation in oral cavity, have massage effect to gingiva tissue.
Existing oscillating mode electric toothbrush is internally provided with driving motor and shaft, and driving motor passes through eccentric wheel with shaft
It links together, driving motor rotation band movable eccentric wheel rotates, and so that shaft is generated using eccentric motion and vibrates, and the shaft other end
It is connected with brush head, to achieve the effect that electric toothbrush head swing in high frequency.
Existing oscillating mode electric toothbrush has the following problems in use：Driving motor is shaken using eccentric wheel generation
Dynamic, in eccentric wheel rotation process, machine driving is more, leads to that vibration frequency is low, the output torque upper limit is relatively low, the cleaning to tooth
Ability effect is poor.
Utility model content
A kind of in order to overcome the deficiencies of the prior art, the utility model provides magnetic suspension motor is distributed with central shaft and is tied
Structure obtains magnetic field superposition gain, and the upper limit of output torque is made to be significantly increased, and ensures to shake with simple mechanical transmission structure
Dynamic frequency.
The purpose of this utility model is achieved through the following technical solutions：
A kind of magnetic suspension motor, including：
Motor cabinet is internally provided with installation cavity；
Magnetic pole group is set in the installation cavity body, is used to form magnetic field；
Rotation axis group is rotatably held in by the field drives in the installation cavity body, the rotation axis group tool
There are magnet and the rotation axis for externally exporting movement, the rotation axis group and the magnetic pole group coaxial arrangement.
As an improvement of the above technical solution, the magnetic pole group includes a plurality of Exciting Windings for Transverse Differential Protection, and the Exciting Windings for Transverse Differential Protection includes
Iron core and the magnet exciting coil being wound on the iron core, a plurality of magnet exciting coils are circumferentially equal along the rotation of the rotation axis group
Even distribution, the magnet exciting coil are connect with AC power.
As a further improvement of the above technical scheme, the rotation of the magnetic direction of the magnet exciting coil and the rotation axis group
Turn axially vertical.
As a further improvement of the above technical scheme, the iron core includes silicon steel sheet, and the silicon steel sheet annular is distributed in
The side of the rotation axis group.
As a further improvement of the above technical scheme, the rotation axis group include coaxial fixed rotating bracket with it is described
Rotation axis, the rotating bracket are equipped with the magnet, and described rotation axis one end extends to the installation containment portion.
As a further improvement of the above technical scheme, the rotating bracket includes being kept off for constraining the magnetic conduction of the magnet
Plate, the magnetic conduction baffle are made of permeability magnetic material.
As a further improvement of the above technical scheme, the pairs of magnetic conduction baffle respectively from the both sides of the magnet about
Shu Suoshu magnets.
As a further improvement of the above technical scheme, the magnet is a plurality of, and along the rotation of the rotation axis group
Circumferentially it is uniformly distributed.
As a further improvement of the above technical scheme, the magnetic suspension motor further includes elastic element, the elasticity member
Part both ends are separately connected the motor cabinet and the rotation axis group, for making the rotation axis group reset.
As a further improvement of the above technical scheme, the elastic element is spring steel plate or spring steel wire.
The utility model has the beneficial effects that：
In magnetic pole group and rotation axis group, magnetic pole group and rotation axis group coaxial arrangement are arranged in motor cabinet, rotation axis group is made to obtain
The superposition gain magnetic field from magnetic pole group is obtained, magnet is driven rotation axis to rotate by field drives, to externally output movement, is had
There is succinct mechanical transmission structure, is superimposed gain and the upper limit of output torque is made to be significantly increased, and avoid being caused by eccentric moment
Yaw moment, ensure that the output of magnetic suspension motor is steady.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment cited below particularly, and
The appended attached drawing of cooperation, is described in detail below.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the decomposition texture schematic diagram for the magnetic suspension motor that the utility model embodiment 1 provides；
Fig. 2 is the close-up schematic view for the magnetic suspension motor that the utility model embodiment 1 provides；
Fig. 3 is the second structural schematic diagram of the silicon steel sheet for the magnetic suspension motor that the utility model embodiment 1 provides；
Fig. 4 is the first structure decomposition diagram of the rotating bracket for the magnetic suspension motor that the utility model embodiment 1 provides；
Fig. 5 is the first structure sectional arrangement drawing of the rotating bracket for the magnetic suspension motor that the utility model embodiment 1 provides；
Fig. 6 is the second structural decomposition diagram of the rotating bracket for the magnetic suspension motor that the utility model embodiment 1 provides；
Fig. 7 is the schematic diagram of the elastic element for the magnetic suspension motor that the utility model embodiment 1 provides.
Main element symbol description：
1000- magnetic suspension motors, 0100- motor cabinets, 0110- toroidal shells, 0120- end closures, 0121- positioning seats,
0200- magnetic pole groups, 0210- Exciting Windings for Transverse Differential Protection, 0211- silicon steel sheets, 0212- magnet exciting coils, 0213- insulating supports, 0214- coils gear
Plate, 0300- rotation axis groups, 0310- rotating brackets, 0311- installation through-holes, 0312- embedded grooves, 0313- magnetic conduction baffles, 0314-
Fixing groove, 0320- rotation axis, 0330- magnets, 0400- elastic elements, 0410- spring steel plates, 0420- spring steel wires, 0500-
Bearing.
Specific implementation mode
Magnetic suspension motor is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The preferred embodiment of magnetic suspension motor is given in attached drawing.But magnetic suspension motor can by many different forms come
It realizes, however it is not limited to embodiment described herein.Make to magnetic suspension motor on the contrary, purpose of providing these embodiments is
Disclosure is more thorough and comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.On the contrary, when element is referred to as " directly existing " another element "upper",
There is no intermediary elements.Term as used herein " vertically ", " horizontal ", "left", "right" and similar statement are
For illustrative purposes.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with the technology for belonging to the utility model
The normally understood meaning of technical staff in domain is identical.It is only in the term used in the description of magnetic suspension motor herein
The purpose of description specific embodiment, it is not intended that limitation the utility model.Term " and or " used herein includes one
Any and all combinations of a or multiple relevant Listed Items.
Embodiment 1
Referring to Fig. 1, the present embodiment discloses a kind of magnetic suspension motor 1000, which includes motor cabinet
0100, magnetic pole group 0200 is particularly suitable for rotation axis group 0300 for providing a kind of electric machine structure with center spindle structure
The vibrations of electric toothbrush export.The main construction of the magnetic suspension motor 1000 is specifically introduced below.
Motor cabinet 0100 is used to provide the encapsulating structure of monoblock type, to complete the installation of all parts.In packaged type structure
Elder generation is made, motor cabinet 0100 is internally provided with installation cavity, for installing fixed all parts.Exemplarily, motor cabinet 0100 includes
Toroidal shell 0110 and end closure 0120, toroidal shell 0110 are surrounded with end closure 0120 into installation cavity.
Wherein, the one end far from end closure 0120 of toroidal shell 0110 keeps closing, and is centrally formed in blind end logical
Hole.Toroidal shell 0110 can be made of a variety of materials, and exemplarily, toroidal shell 0110 is made of metal material, and be had preferable
Structural strength.Further, bearing 0500 is set in through-hole, is carried with providing good movement to rotation axis group 0300.
End closure 0120 is packaged in the open end of toroidal shell 0110, exemplarily, has good water therebetween
Close property.End closure 0120 can be used multiple material and be made, and exemplarily, end closure 0120 is made of plastics, and have good
Insulating properties.
Exemplarily, end closure 0120 is equipped with mounting groove close to the side of toroidal shell 0110, to realize corresponding portion
The fixation of part.Exemplarily, side of the end closure 0120 far from toroidal shell 0110 is equipped with locating slot, to realize magnetic suspension
The external connection of motor 1000.Exemplarily, end closure 0120 is equipped with cable-through hole, so that circuit connecting wire passes through.
Fig. 1~2 are please referred to, magnetic pole group 0200 is set in installation cavity body, is used to form magnetic field, to provide magnetic suspension
The magnetic of driving drives basis.The composition form of magnetic pole group 0200 is numerous, i.e. such as permanent magnet, 0210 type of Exciting Windings for Transverse Differential Protection.It is exemplary
Ground, magnetic pole group 0200 can adopt the form of Exciting Windings for Transverse Differential Protection 0210, stress below.
Exciting Windings for Transverse Differential Protection 0210 includes iron core and the magnet exciting coil 0212 being wound on iron core, magnet exciting coil 0212 and alternating current
Source connects.AC power exports alternating current to magnet exciting coil 0212, makes to form magnetic field in magnet exciting coil 0212.After turn-off current,
The magnetic field that magnet exciting coil 0212 generates disappears, to which stop motion exports.Exemplarily, the circuit connecting wire of magnet exciting coil 0212
It is connect with AC power across cable-through hole.
Under the action of iron core, the magnetic field generated in magnet exciting coil 0212 is further enhanced, and makes rotation axis group 0300
Obtain enough driving forces.Exemplarily, the magnetic direction of magnet exciting coil 0212 is vertical with the axial rotary of rotation axis group 0300,
To ensure that the driving force that rotation axis group 0300 is subject to drives its rotation well.
Further, magnetic pole group 0200 includes a plurality of Exciting Windings for Transverse Differential Protection 0210, and a plurality of magnet exciting coils 0212 are along rotation axis
The rotation of group 0300 is circumferentially uniformly distributed.Any magnet exciting coil 0212 generates magnetic field under alternating current respectively, and each magnetic field is common
Rotation axis group 0300 is acted on, rotation axis group 0300 is made to rotate and export power.Exemplarily, the quantity of Exciting Windings for Transverse Differential Protection 0210 is
Two, and the distribution that is centrosymmetric centered on rotation axis group 0300, make to be symmetrically to the magnetic that generates of Exciting Windings for Transverse Differential Protection 0210
Field direction is opposite.
Wherein, the realization method of iron core is numerous.Exemplarily, iron core includes silicon steel sheet 0211.Silicon steel sheet 0211 is
Silicon lamination, are a kind of carbon containing extremely low silicon-iron soft magnetic alloys, and general silicon content is 0.5~4.5%.Wherein,
Iron can be improved in silicon resistivity and maximum permeability is added, reduces coercivity, core loss (iron loss) and magnetic aging.
Further, 0211 annular spread of silicon steel sheet is in the side of rotation axis group 0300.For example, referring to Fig. 3, silicon steel sheet
0211 annular solid being integrally formed, annular solid are sheathed on the side of rotation axis group 0300,0210 ring cloth of a plurality of Exciting Windings for Transverse Differential Protection
In on annular solid.For another example, referring to Fig. 2, the quantity of silicon steel sheet 0211 is at least two, annular solid, ring are spliced to form
Body is sheathed on the side of rotation axis group 0300, and a plurality of Exciting Windings for Transverse Differential Protection 0210 are annularly distributed on annular solid (such as can accordingly one by one
It is set on different silicon steel sheets 0211).
Further, 0211 inside of silicon steel sheet is equipped with insulating support 0213.Exemplarily, 0211 inside of silicon steel sheet is equipped with T
Type frame is correspondingly arranged T-slot on insulating support 0213, to make insulating support 0213 firmly be sheathed on T-type frame.Excitation wire
Circle 0212 is wound on insulating support 0213, exemplarily, insulating support 0213, silicon steel sheet 0211 and magnet exciting coil 0212 number
Amount is consistent, and three is arranged correspondingly.Further, side of the insulating support 0213 far from silicon steel sheet 0211 is kept off equipped with coil
Plate 0214.
Rotation axis group 0300 in magnetic field for moving and exporting power.Specifically, rotation axis group 0300 is by field drives
And it is rotatably held in installation cavity body.Wherein, rotation axis group 0300 has magnet 0330 and for externally exporting movement
Rotation axis 0320, rotation axis group 0300 and 0200 coaxial arrangement of magnetic pole group.
In other words, rotation axis group 0300 is located at the center in the magnetic field of the generation of magnetic pole group 0200, forms central shaft type motor
Construction, advanced optimizes the performance of magnetic suspension motor 1000, and it is excellent to have that output is stablized, start-up and shut-down control is good, output torque is big etc.
Point.Further, since rotation axis group 0300 is centrally arranged, beat existing for arranged off-centre is avoided to tremble, ensures that output is steady.
For example, in demonstration example above-mentioned, a plurality of Exciting Windings for Transverse Differential Protection 0210 are uniformly surrounded on the side of rotation axis group 0300,
The magnetic field that each Exciting Windings for Transverse Differential Protection 0210 generates is set to form superposition gain, rotation axis group 0300 can get the driving force of superposition gain,
The upper limit of output torque is set to be significantly increased.
The structure type of rotation axis group 0300 is numerous.Exemplarily, rotation axis group 0300 includes coaxial fixed rotation branch
Frame 0310 and rotation axis 0320.Wherein, rotating bracket 0310 is sequentially connected in an axial direction with rotation axis 0320.In rotating bracket 0310
Equipped with magnet 0330, exemplarily, the insertion of magnet 0330 is installed in rotating bracket 0310.
0320 one end of rotation axis extends to installation containment portion, to connect with external executive item (such as electric toothbrush head)
It connects, to drive external executive item to move.In previous exemplary example, the one end of toroidal shell 0110 far from end closure 0120 is protected
Closing is held, and through-hole is centrally formed in blind end, rotation axis 0320 extends rotatably through the through-hole.
Magnet 0330 is made of magnetic material, and a kind of common form is magnet.Magnet 0330 and 0320 one of rotation axis
Connection, the stress in alternating magnetic field and rotate, and rotation axis 0320 is driven to rotate integrally.Wherein, the distribution mode of magnet 0330
It is numerous, it is different according to different quantity settings, demonstration is only given a few examples below.
Fig. 4~5 are please referred to, exemplarily, the centre of rotating bracket 0310 is equipped with installation through-hole 0311, magnet
0330 insertion is installed in installation through-hole 0311.Wherein, the quantity of magnet 0330 can be one to a plurality of.Exemplarily, magnet
0330 quantity is one, is integrally embedded in installation through-hole 0311.
Fig. 6 is please referred to, exemplarily, a plurality of embedded grooves 0312 is evenly provided in rotating bracket 0310, are used for
Embedded installation magnet 0330.Accordingly, magnet 0330 is equal with 0312 quantity of embedded groove, forms one-to-one embedded structure.
Exemplarily, the outer surface of rotating bracket 0310 is symmetrically set there are two embedded groove 0312, and embedded groove 0312 is with rotating bracket
0310 rotary shaft is symmetry axis.
Preferably, rotating bracket 0310 includes the magnetic conduction baffle 0313 for confinement magnets 0330, avoid magnet 0330 with
Rotating bracket 0310 detaches.Further, magnetic conduction baffle 0313 in pairs be distributed, and pairs of magnetic conduction baffle 0313 respectively from
The both sides confinement magnets 0330 of magnet 0330.Wherein, magnetic conduction baffle 0313 is made of permeability magnetic material, and magnetic fields is made to pass well
It passs, avoids that field decay occurs, to ensure the driving force needed for magnet 0330.
Preferably, magnetic suspension motor 1000 further includes elastic element 0400.0400 both ends one end of elastic element is fixedly connected
Motor cabinet 0100, the other end are fixedly connected with rotation axis group 0300, for making rotation axis group 0300 reset.
For example, when rotation axis group 0300 rotates, elastic element 0400 and the connecting pin of rotation axis group 0300 rotate with,
And the connecting pin remains stationary of elastic element 0400 and motor cabinet 0100, so that elastic element 0400 is twisted.Elastic element
0400 occurs flexible deformation in twist process, puts aside interior energy and is discharged when rotation axis group 0300 loses field drives, makes rotation
Axis group 0300, which reversely rotates, to be resetted.
Fig. 7 is please referred to, the form of elastic element 0400 is numerous, including spring steel plate 0410, spring steel wire 0420, torsion
The types such as spring.The fixed form of elastic element 0400 is numerous, i.e. such as clasp joint, mounting, nail joint type.
Exemplarily, the one end of rotating bracket 0310 far from rotation axis 0320 is equipped with fixing groove 0314, elastic element 0400
One end insertion is fixed in fixing groove 0314.Further, there is interference fit between elastic element 0400 and fixing groove 0314
Relationship.
Exemplarily, end closure 0120 is equipped with positioning seat 0121, positioning seat 0121 close to the side of rotating bracket 0310
For fixing elastic element 0400.It can be equipped with the fixed structures such as slot, hole on positioning seat 0121, turn so that elastic element 0400 is separate
One end of dynamic holder 0310 is embedded in wherein, makes the end and end closure 0120 together remains stationary.
In all examples being illustrated and described herein, any occurrence should be construed as merely illustrative, without
It is as limitation, therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But therefore it can not be interpreted as the limitation to the scope of the utility model.It should be pointed out that for the ordinary skill of this field
For personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this
The protection domain of utility model.Therefore, the scope of protection of the utility model should be determined by the appended claims.
Claims (8)
1. a kind of magnetic suspension motor, which is characterized in that including：
Motor cabinet is internally provided with installation cavity；
Magnetic pole group is set in the installation cavity body, is used to form magnetic field；
Rotation axis group is rotatably held in by the field drives in the installation cavity body, and the rotation axis group has one
Magnet, coaxial fixed rotating bracket and rotation axis, the rotation axis group and the magnetic pole group coaxial arrangement, the rotating bracket
Centre is equipped with installation through-hole, and the magnet insertion is installed in the installation through-hole, and described rotation axis one end extends to described
Containment portion is installed and is used to externally export movement.
2. magnetic suspension motor according to claim 1, which is characterized in that the magnetic pole group includes a plurality of Exciting Windings for Transverse Differential Protection,
The Exciting Windings for Transverse Differential Protection includes iron core and the magnet exciting coil that is wound on the iron core, and a plurality of magnet exciting coils are along the rotation
The rotation of axis group is circumferentially uniformly distributed, and the magnet exciting coil is connect with AC power.
3. magnetic suspension motor according to claim 2, which is characterized in that the magnetic direction of the magnet exciting coil and described turn
The axial rotary of moving axis group is vertical.
4. magnetic suspension motor according to claim 2, which is characterized in that the iron core includes silicon steel sheet, the silicon steel sheet
Annular spread is in the side of the rotation axis group.
5. magnetic suspension motor according to claim 1, which is characterized in that the rotating bracket includes for constraining the magnetic
The magnetic conduction baffle of body, the magnetic conduction baffle are made of permeability magnetic material.
6. magnetic suspension motor according to claim 5, which is characterized in that the pairs of magnetic conduction baffle is respectively from the magnetic
The both sides of body constrain the magnet.
7. magnetic suspension motor according to claim 1, which is characterized in that further include elastic element, the elastic element two
End is separately connected the motor cabinet and the rotation axis group, for making the rotation axis group reset.
8. magnetic suspension motor according to claim 7, which is characterized in that the elastic element is spring steel plate or spring steel
Silk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820142326.1U CN208028663U (en) | 2018-01-26 | 2018-01-26 | Magnetic suspension motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820142326.1U CN208028663U (en) | 2018-01-26 | 2018-01-26 | Magnetic suspension motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208028663U true CN208028663U (en) | 2018-10-30 |
Family
ID=63903293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820142326.1U Active CN208028663U (en) | 2018-01-26 | 2018-01-26 | Magnetic suspension motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208028663U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108039782A (en) * | 2018-01-26 | 2018-05-15 | 深圳市振桦电机有限公司 | Magnetic suspension motor |
| CN109861488A (en) * | 2019-03-21 | 2019-06-07 | 深圳市振桦电机有限公司 | Magnetic levitation component and electric toothbrush |
-
2018
- 2018-01-26 CN CN201820142326.1U patent/CN208028663U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108039782A (en) * | 2018-01-26 | 2018-05-15 | 深圳市振桦电机有限公司 | Magnetic suspension motor |
| CN108039782B (en) * | 2018-01-26 | 2024-05-24 | 深圳市振桦电机有限公司 | Magnetic suspension motor |
| CN109861488A (en) * | 2019-03-21 | 2019-06-07 | 深圳市振桦电机有限公司 | Magnetic levitation component and electric toothbrush |
| CN109861488B (en) * | 2019-03-21 | 2024-01-26 | 深圳市振桦电机有限公司 | Magnetic suspension assembly and electric toothbrush |
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