CN108521178A - A kind of restricted corner acoustic vibration motor of magnetic field quadrupole positioning - Google Patents
A kind of restricted corner acoustic vibration motor of magnetic field quadrupole positioning Download PDFInfo
- Publication number
- CN108521178A CN108521178A CN201810601160.XA CN201810601160A CN108521178A CN 108521178 A CN108521178 A CN 108521178A CN 201810601160 A CN201810601160 A CN 201810601160A CN 108521178 A CN108521178 A CN 108521178A
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- stator
- magnetic field
- chip
- vibration motor
- acoustic vibration
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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
- H02K1/12—Stationary parts of the magnetic circuit
-
- 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
- H02K1/34—Reciprocating, oscillating or vibrating parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
A kind of magnetic field quadrupole of the present invention positions restricted corner acoustic vibration motor, including：Shell；Rotor assembly includes that rotary shaft, rotor chip and two magnets being embedded in rotor chip, rotary shaft one end are arranged in the centre bore of rotor chip, and rotor assembly is arranged in stator module, and the rotary shaft other end is arranged outside shell；Stator module includes the stator chip being symmetrical arranged there are four magnetic pole of the stator, stator winding is both provided on four magnetic pole of the stator, four stator winding are connected and the stator winding direction of winding of homonymy is opposite.The magnetic field quadrupole of the present invention positions restricted corner acoustic vibration motor, stator module may be implemented four magnetic poles and spread, positioning and playback can be well realized by the magnetic force of four distribution magnetic poles in motor in rotor assembly, to reduce output torque loss, improve torque output efficiency, motor itself can make full use of magnetic product can again simultaneously so that the amplitude of oscillation is also more stablized.
Description
Technical field
The present invention relates to technical field of living goods, and restricted corner is positioned more specifically to a kind of magnetic field quadrupole
Acoustic vibration motor.
Background technology
With the continuous improvement of people's living standards, electric toothbrush starts to come into daily life, tradition is substituted
Toothbrush is realized more preferably and more easily toothbrushing effect.
Electric toothbrush generally use motor drives, and realizes that the vibration of toothbrush head serves to clean the teeth.It is existing
Motor in electric toothbrush generally requires the torque arm of installation spring or similar torsional spring, this class formation is easy in use
Damage, is not easily repaired, and design using the above structure so that the bearing capacity of motor is low, and the motor of unit volume can pass
The torque passed is smaller, and the amplitude of oscillation of motor shaft changes greatly when bearing different loads, and motor output torque is small, output torque effect
Rate is low, and using effect is not sufficiently stable.
Invention content
In view of this, the purpose of the present invention is to provide a kind of magnetic field quadrupoles to position restricted corner acoustic vibration motor,
Stator module may be implemented four magnetic poles and spread, and rotor assembly can be with by the magnetic force of four distribution magnetic poles in motor
Positioning and playback are realized well, to reduce output torque loss, improve torque output efficiency, while motor itself again can be with
Magnetic product energy is made full use of, the output torque of motor is further improved so that the amplitude of oscillation is also more stablized.
In order to achieve the above object, the present invention provides the following technical solutions：
A kind of restricted corner acoustic vibration motor of magnetic field quadrupole positioning, including：
Shell, the rotor assembly and stator module being arranged in the shell；
The rotor assembly includes rotary shaft, rotor chip and two magnets being embedded in the rotor chip, institute
It states rotary shaft one end to be arranged in the centre bore of the rotor chip, the rotor assembly is arranged in the stator module, institute
The rotary shaft other end is stated to be arranged outside the shell；
The stator module includes the stator chip being symmetrical arranged there are four magnetic pole of the stator, on four magnetic pole of the stator
It is provided with stator winding, four stator winding are connected and the stator winding direction of winding of homonymy is opposite.
Preferably, the rotor chip is provided with symmetrical rotor chip slot, and two magnets are symmetrically embedded in two institutes
It states in rotor chip slot.
Preferably, the shell includes end cap and casing, and the end cap is fixedly connected with the casing by riveted mode,
The stator module and the rotor assembly are arranged in the shell, the rotary shaft upper end by end cap ball bearing with
The end cap connection.
Preferably, it is connected by casing ball bearing between the rotary shaft lower end and the casing.
Preferably, the stator chip is additionally provided with painting insulating layer coating.
Preferably, the winding mode of the stator winding is interior wound.
Preferably, the stator chip is made of silicon steel sheet tinertoy.
Preferably, the rotor chip is made of silicon steel sheet tinertoy.
Preferably, the magnet is neodymium iron boron strong magnet.
According to above-mentioned technical solution, it is recognised that the magnetic field quadrupole in the present invention positions restricted corner acoustic vibration
Motor, including：Shell, the rotor assembly and stator module being arranged in shell；Rotor assembly include rotary shaft, rotor chip with
And two magnets in rotor chip are embedded, rotary shaft one end is arranged in the centre bore of rotor chip, rotor assembly setting
Among stator module, the rotary shaft other end is arranged outside shell；Stator module includes being symmetrical arranged there are four magnetic pole of the stator
Stator chip is both provided with stator winding, four stator winding series connection and the stator winding coiling of homonymy on four magnetic pole of the stator
Direction is opposite.The permanent-magnet pole mutual cooperation that stator module can be formed in four distributions magnetic poles, with rotor assembly can make quiet
Only magnetic force is in equilibrium state under state, so that rotor assembly passes through the magnetic field of four magnetic pole of the stator in shell
Active force, which is realized, to be fixed, simultaneously because during the pole center line of rotor chip and the pole center line of stator chip are maintained at same
On heart line, so as to preferably be positioned to rotor assembly, eliminate in the past by elastic shaft or torsion spring to rotor into
The mode of row positioning and playback.In addition, after being powered to four stator winding, due on two magnetic pole of the stator of homonymy
Stator winding direction of winding on the contrary, so the polarity of the magnetic field one of two magnetic pole of the stator of homonymy be N another be the poles S, simultaneously
The working face of each magnet of rotor assembly is the poles N or the poles S of single polarity so that the magnetic field pole of two magnetic pole of the stator of homonymy
Property and homonymy rotor magnet polarity of the magnetic field between heteropolar attracting or homopolar-repulsion so that rotor chip generates torsion and band
Turn sub-component rotates, and what it is due to connection is positive and negative square wave current, and the variation in stator winding current direction will bring stator chip
Magnetic pole change, to which the direction of torsion will also change, rotor assembly will carry out reciprocating small size rotation at this time, it is this with
The movement that galvanomagnetic-effect is realized is transmitted, and the reciprocating motion of rotor assembly is made more to smooth out stabilization.Due to eliminating with elastic shaft or
It is fragile when in use so that motor to avoid elastic construction the technical solution that positions and playback for the elastic constructions such as torsion spring
The shorter situation of service life also avoids the output torque that motor is consumed on elastic construction so that the motor of unit volume
It can transmit the torque of bigger numerical value, reduce output torque loss, the service efficiency for improving output torque while also improves
The service life of motor；So that the magnetic field that magnetic field and rotor assembly that stator module generates generate more intensively is distributed in working face,
Magnetic product energy is taken full advantage of, the output torque of motor is promoted, big variation will not occur because of the variation of load in the amplitude of oscillation,
It can be with the mitigation motor weight of respective degrees.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is that the magnetic field quadrupole of the present invention positions the structural schematic diagram of restricted corner acoustic vibration motor；
Fig. 2 is that the magnetic field quadrupole of the present invention positions the exploded perspective view of restricted corner acoustic vibration motor；
Fig. 3 is that the magnetic field quadrupole of the present invention positions the rotor assembly schematic diagram of restricted corner acoustic vibration motor；
Fig. 4 is that the magnetic field quadrupole of the present invention positions the stator module schematic diagram of restricted corner acoustic vibration motor；
Fig. 5 is the operating diagram that the magnetic field quadrupole of the embodiment of the present invention positions restricted corner acoustic vibration motor；
Fig. 6 is the structure for the stator chip that the magnetic field quadrupole of the embodiment of the present invention positions restricted corner acoustic vibration motor
Schematic diagram；
Fig. 7 is the structure sectional view that the magnetic field quadrupole of the embodiment of the present invention positions restricted corner acoustic vibration motor.
Wherein, it is marked in attached drawing as follows：
1- rotary shafts, 2- end caps, 3- casings, 4- rotor chips, 5- magnets, 6- stator chips, 7- apply insulating layer coating, and 8- is fixed
Sub- winding, 9- end cap ball bearings, 10- casing ball bearings, 11- rotor chip slots, 12- magnetic pole of the stator, 13- stator chips
Slot.
Specific implementation mode
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 describes, 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.
Please refer to Fig.1 the structural representation that the magnetic field quadrupole that -7, Fig. 1 is the present invention positions restricted corner acoustic vibration motor
Figure；Fig. 2 is that the magnetic field quadrupole of the present invention positions the exploded perspective view of restricted corner acoustic vibration motor；Fig. 3 is of the invention
Magnetic field quadrupole positions the rotor assembly schematic diagram of restricted corner acoustic vibration motor；Fig. 4 is the magnetic field quadrupole positioning of the present invention
The stator module schematic diagram of restricted corner acoustic vibration motor；Fig. 5 is that the magnetic field quadrupole positioning of the embodiment of the present invention is restricted
The operating diagram of corner acoustic vibration motor；Fig. 6 is that the magnetic field restricted corner sound wave of quadrupole positioning of the embodiment of the present invention shakes
The structural schematic diagram of the stator chip of dynamic motor；Fig. 7 is that the magnetic field restricted corner sound wave of quadrupole positioning of the embodiment of the present invention shakes
The structure sectional view of dynamic motor.
In the specific implementation of the present invention, as illustrated in fig. 1 and 2, a kind of restricted corner sound wave of magnetic field quadrupole positioning shakes
Dynamic motor, including：Shell；Rotor assembly, the rotor assembly include rotary shaft 1 and rotor chip 4 and are embedded at described turn
Two magnets 5 in sub- chip 4, described 1 one end of rotary shaft are arranged in 4 centre bore of rotor chip, rotor assembly
It is arranged in the stator module, 1 other end of the rotary shaft is arranged outside the shell；Stator module, the stator module
It is arranged in the shell, on the one hand provides the Support Position of internal structure, the compact installation of internal structure, stabilization is facilitated to match
It closes, on the other hand can also protect the internal structure pollution and influence by external environment as few as possible, ensure internal continue surely
Fixed power transmission.
The stator module includes the stator chip 6 and stator winding 8 being symmetrical arranged there are four magnetic pole of the stator 12, and four fixed
Sub- winding 8 is arranged on four magnetic pole of the stator 12, the series connection of four stator winding 8 and the stator winding 8 of homonymy
Direction of winding is on the contrary, this winding mode reduces winding space and coil copper loss；Electricity makes four of stator chip 6 fixed when logical
Sub- magnetic pole 12 can generate the distribution electromagnetic pole of four opposed polarities, and due to the direction of winding of homonymy winding on the contrary, so
The electromagnetic field polarity one that two magnetic pole of the stator 12 of stator module homonymy generate be N another be the poles S, while rotor assembly
The working face of each magnet 5 is the poles N or the poles S of single polarity, and four magnetic pole of the stator 12 spread and the magnet 5 of rotor assembly are matched
Conjunction realizes magnetic force under stationary state and is in equilibrium state, so that rotor assembly passes through four stators in shell
The magnetic force of magnetic pole 12 is fixed, while the pole center line of rotor chip 4 and the pole center line of stator chip 6 are maintained at
Same center eliminates to realize the positioning to rotor assembly in the past by elastic shaft or torsion spring to rotor assembly
Positioning and playback.In addition, the inlet wire of four stator winding 8 and outlet pass through end cap 2 then to draw connection external electrical after being fixed
Source is illustrated in figure 5 the work that motor carries out reciprocating rotation in both direction at work after being powered to stator winding 8
Make state, Fig. 5 is illustrated here, is the rotor that magnetic field quadrupole positions restricted corner acoustic vibration motor on the right side of Fig. 5
The operating diagram rotated counterclockwise, be on the left of Fig. 5 magnetic field quadrupole position restricted corner acoustic vibration motor rotor it is suitable
The operating diagram of hour hands rotation is the operating diagram of the rotor rotation of acoustic vibration motor, due to four stator winding 8
Two stator winding direction of windings of homonymy are on the contrary, so electromagnetic field caused by two stator winding 8 of stator module homonymy
Polarity one be N another be the poles S, while poles N that the working face of each magnet 5 of rotor assembly is single polarity or the poles S make
Homonymy two magnetic pole of the stator 12 polarity of the magnetic field and homonymy rotor magnet 5 polarity of the magnetic field between it is heteropolar attracting or same
Pole is repelled each other, to make rotor chip 4 generate torsion and rotor assembly is driven to rotate.What it is due to connection is positive and negative square wave current, fixed
The variation of 8 current direction of sub- winding will bring the reversing of the magnetic pole of the stator 12 of stator chip 6, so that the direction of torsion also will
It changes, for example, becoming the original magnetic pole N of the magnetic pole of the stator 12 for making stator chip 6 when current direction changes
The poles S, magnetic pole S originally become the poles N, rotary shaft 1 are made to rotate in the opposite direction, thereby realize movement and transmit, rotation
Shaft 1 is achieved that reciprocating small size rotation, and this movement realized with galvanomagnetic-effect is transmitted, make rotation process more smooth out with
Stablize.Due to eliminating with elastic constructions such as elastic shaft or torsion springs the technical solution that positions and playback, by galvanomagnetic-effect
The transmission for realizing movement avoids the elastic construction fragile situation for so that the service life of motor is shorter when in use, also keeps away
Exempt from the output torque of the consumption motor on elastic construction so that the motor of unit volume can transmit the torque of bigger numerical value,
Output torque loss is reduced, the service life of motor is also improved while improving the service efficiency of output torque so that stator module
The magnetic field that the magnetic field of generation and rotor assembly generate more intensively is distributed in working face, takes full advantage of magnetic product energy, promotes electricity
Big variation will not occur because of the variation of load in the output torque of machine, the amplitude of oscillation, can also respective degrees mitigation motor
Weight.
In another specific embodiment of the present invention, as shown in Fig. 3,4,6 and 7, the rotor chip 4 is provided with symmetrically
Rotor chip slot 11, two magnets 5 are symmetrically embedded in two rotor chip slots 11.Magnetic pole of the stator 12 and magnet
5 carry out the conducting in magnetic field and closure by air gap can preferably keep magnetic and magnetic flux, reduce leakage field, carried for rotor assembly
For satisfactory location torque and playback torque, ensure the pole center of the pole center line and stator chip 6 of rotor chip 4
Line is maintained at same center, so that the positioning and playback of rotor assembly are more accurate, what needs to be explained here is that, four stators
The technique effect that magnetic pole 12 and two rotor chip slots 11 are reached using symmetrical and equal configuration is best, and same reason is fixed
Sub- chip 6 itself uses the design that symmetrical and equal design is also best, it should be understood that, other structure designs
Also can, as long as identical technique effect can be reached.
In another specific embodiment of the present invention, as shown in Fig. 2, the shell includes end cap 2 and casing 3, the end
Lid 2 is connect with 3 stake-fastening of the casing, and the stator module and the rotor assembly are arranged in the casing 3, described
1 upper end of rotary shaft is connect by end cap ball bearing 9 with the end cap 2, and 1 lower end of the rotary shaft passes through casing ball bearing 10
It is connected between the casing 3 so that the rotation of rotary shaft 1 is more smooth, avoids the abrasion of rotary shaft 1, while also can be steady
Determine the position of rotary shaft 1, the design of a pair of of ball bearing can be such that the rear and front end uniform force of rotary shaft 1, installation stablizes.
In another specific embodiment of the present invention, as shown in fig. 7, the stator that the centre of four magnetic pole of the stator 12 is constituted
Chip slot 13 is positioned to rotor assembly and playback plays a key effect so that the magnetic line of force can be concentrated through stator module and turn
Between the working face of sub-component, satisfactory detent force and playback power are provided for rotor assembly.
In another specific embodiment of the present invention, the stator chip 6 and rotor chip 4 are made of silicon steel sheet tinertoy,
The magnet 5 is neodymium iron boron strong magnet.Ndfeb magnet has good mechanical property, and small, light-weight, magnetic
By force, degree of balance when rotor assembly is in magnetic suspension state can be enhanced so that motor balance is more stablized, it is no longer necessary to extra
Fixing piece, and enable to realize accurate playback after motor stalls.
In another specific embodiment of the present invention, as shown in Fig. 2, rotary shaft 1 and rotor chip 4, ball bearing 9, rolling
Shaft is held the fit system between 10 and is preferably interference fitted；Fit system between rotor chip 4 and magnet 5 is preferably transition
Cooperation.But other fit systems or viscose glue can also be selected, as long as stable technique effect can be reached.
In another specific embodiment of the present invention, as shown in figure 4, stator chip 6, which is additionally provided with, applies insulating layer coating 7, apply
The setting of insulating layer coating 7 is in 6 inside of stator chip, it is preferred that applies insulating layer coating 7 and is applied to four stators in stator chip 6
On magnetic pole 12 and stator core film trap 13, so that can keep insulating between stator winding 8 and magnetic pole of the stator 12, it is also prevented from simultaneously
Stator winding 8 is generated on magnetic pole of the stator 12 around to damage, what needs to be explained here is that, it can also be in stator winding 8 and stator
Between magnetic pole 12 setting for it is interior around installation coil holder, as long as the technique effect of insulation can be reached.
In conclusion the field quadrupole of the present invention positions restricted corner acoustic vibration motor, it is fixed by stator chip four
Four magnetic poles that the design of sub- magnetic pole 12 realizes stator module are spread, and allow rotor assembly in shell by four distribution magnetic poles
Magnetic force realize well positioning and playback, reduce output torque loss, improve torque output efficiency；Motor fills simultaneously
Divide and magnetic product energy is utilized, promotes the output torque of motor, while the amplitude of oscillation is also more stablized.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (9)
1. a kind of magnetic field quadrupole positions restricted corner acoustic vibration motor, which is characterized in that including：
Shell, the rotor assembly and stator module being arranged in the shell；
The rotor assembly includes rotary shaft, rotor chip and two magnets being embedded in the rotor chip, the rotation
Shaft one end is arranged in the centre bore of the rotor chip, and the rotor assembly is arranged in the stator module, the rotation
The shaft other end is arranged outside the shell；
The stator module includes the stator chip being symmetrical arranged there are four magnetic pole of the stator, is respectively provided on four magnetic pole of the stator
There is stator winding, four stator winding are connected and the stator winding direction of winding of homonymy is opposite.
2. magnetic field quadrupole as described in claim 1 positions restricted corner acoustic vibration motor, which is characterized in that the rotor
Chip is provided with symmetrical rotor chip slot, and two magnets are symmetrically embedded in two rotor chip slots.
3. magnetic field quadrupole as described in claim 1 positions restricted corner acoustic vibration motor, which is characterized in that the shell
Including end cap and casing, the end cap is fixedly connected with the casing by riveted mode, and the rotary shaft upper end passes through end cap
Ball bearing is connect with the end cap.
4. magnetic field quadrupole as claimed in claim 3 positions restricted corner acoustic vibration motor, which is characterized in that the rotation
It is connected by casing ball bearing between axis lower end and the casing.
5. magnetic field quadrupole as described in claim 1 positions restricted corner acoustic vibration motor, which is characterized in that the stator
Chip is additionally provided with painting insulating layer coating.
6. magnetic field quadrupole as described in claim 1 positions restricted corner acoustic vibration motor, it is characterised in that stator winding
Winding mode be it is interior wound.
7. magnetic field quadrupole as described in claim 1 positions restricted corner acoustic vibration motor, which is characterized in that the stator
Chip is made of silicon steel sheet tinertoy.
8. magnetic field quadrupole as described in claim 1 positions restricted corner acoustic vibration motor, which is characterized in that the rotor
Chip is made of silicon steel sheet tinertoy.
9. magnetic field quadrupole as described in claim 1 positions restricted corner acoustic vibration motor, which is characterized in that the magnet
It is neodymium iron boron strong magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810601160.XA CN108521178A (en) | 2018-06-12 | 2018-06-12 | A kind of restricted corner acoustic vibration motor of magnetic field quadrupole positioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810601160.XA CN108521178A (en) | 2018-06-12 | 2018-06-12 | A kind of restricted corner acoustic vibration motor of magnetic field quadrupole positioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108521178A true CN108521178A (en) | 2018-09-11 |
Family
ID=63428327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810601160.XA Pending CN108521178A (en) | 2018-06-12 | 2018-06-12 | A kind of restricted corner acoustic vibration motor of magnetic field quadrupole positioning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108521178A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109698564A (en) * | 2019-01-30 | 2019-04-30 | 东莞市天孚电机科技有限公司 | A kind of high frequency fixed angle motor |
| CN109995169A (en) * | 2018-12-30 | 2019-07-09 | 东莞市维斗科技股份有限公司 | A kind of sound wave motor that miniature center shaft mechanical position limitation fool proof external force resistance destroys |
| CN109995152A (en) * | 2018-12-30 | 2019-07-09 | 东莞市维斗科技股份有限公司 | A kind of modified form sound wave motor |
| CN114421656A (en) * | 2021-12-31 | 2022-04-29 | 歌尔股份有限公司 | Rotating device, force feedback device and electronic equipment |
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| CN104578668A (en) * | 2015-02-03 | 2015-04-29 | 朱忠磊 | Small-sized high-frequency vibration device |
| CN106921226A (en) * | 2015-12-11 | 2017-07-04 | 戴森技术有限公司 | Stator module and the motor including it |
| CN207069720U (en) * | 2017-06-03 | 2018-03-02 | 东莞市吉铼升电机股份有限公司 | A kind of electric toothbrush brushless electric machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578668A (en) * | 2015-02-03 | 2015-04-29 | 朱忠磊 | Small-sized high-frequency vibration device |
| CN106921226A (en) * | 2015-12-11 | 2017-07-04 | 戴森技术有限公司 | Stator module and the motor including it |
| CN207069720U (en) * | 2017-06-03 | 2018-03-02 | 东莞市吉铼升电机股份有限公司 | A kind of electric toothbrush brushless electric machine |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109995169A (en) * | 2018-12-30 | 2019-07-09 | 东莞市维斗科技股份有限公司 | A kind of sound wave motor that miniature center shaft mechanical position limitation fool proof external force resistance destroys |
| CN109995152A (en) * | 2018-12-30 | 2019-07-09 | 东莞市维斗科技股份有限公司 | A kind of modified form sound wave motor |
| CN109698564A (en) * | 2019-01-30 | 2019-04-30 | 东莞市天孚电机科技有限公司 | A kind of high frequency fixed angle motor |
| CN109698564B (en) * | 2019-01-30 | 2023-08-25 | 广东天孚电机科技有限公司 | High-frequency fixed angle motor |
| CN114421656A (en) * | 2021-12-31 | 2022-04-29 | 歌尔股份有限公司 | Rotating device, force feedback device and electronic equipment |
| CN114421656B (en) * | 2021-12-31 | 2023-09-29 | 歌尔股份有限公司 | Rotating device, force feedback device and electronic equipment |
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Application publication date: 20180911 |