CN106953493A - A kind of brushless ac vibrates micro machine - Google Patents
A kind of brushless ac vibrates micro machine Download PDFInfo
- Publication number
- CN106953493A CN106953493A CN201710240362.1A CN201710240362A CN106953493A CN 106953493 A CN106953493 A CN 106953493A CN 201710240362 A CN201710240362 A CN 201710240362A CN 106953493 A CN106953493 A CN 106953493A
- Authority
- CN
- China
- Prior art keywords
- lamination stack
- core lamination
- magnet
- brushless
- micro machine
- 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.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/02—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
- H02K33/04—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs wherein the frequency of operation is determined by the frequency of uninterrupted AC energisation
Abstract
Micro machine, including rotor are vibrated the invention discloses a kind of brushless ac, the rotor includes axle, the first core lamination stack and the second core lamination stack through axle；Stator, the stator includes the coil through axle and in the middle of first core lamination stack and second core lamination stack, and around axle, the first bar magnet of coil and first core lamination stack and second core lamination stack, the second bar magnet, Article 3 shape magnet and Article 4 shape magnet.Wherein described magnet is same magnet, and the magnet only magnetizes at two ends, and centre is without magnetic, and magnetizing direction is radial direction, and upper and lower ends magnetic is on the contrary, magnet is arranged according to the opposite polarity principle of adjacent magnets.Bottom perforation extraction wire, increase counterweight reduces amplitude decay.The present invention improves assembly technology, reduces manufacturing cost；Using brushless electric machine, increase the service life；According to the FREQUENCY CONTROL amplitude of driving, increase counter weight device reduces the amplitude decay having in the case of damping.
Description
Technical field
The present invention relates to brushless electric machine field, more specifically it relates to which a kind of brushless ac vibrates micro machine.
Background technology
At present, the widely used motor of in the market includes brush motor and brushless electric machine, and general brush motor passes through whole
The mechanical system of stream and brush switches the electric current of input coil, the mechanical system that this brush motor passes through commutator and brush
The electric current of input coil is switched over, its rotating speed is relatively easily controlled, still, the mechanical break-in of brush and commutator often adds
The fast loss of electric machine so that its service life is not long, and easily sends noise.
Exchange vibration micro machine is that one kind is passed through after alternating current, and motor shaft can be around axle center reciprocally swinging at an angle
Motor.This micro machine is widely used in the fields such as electric toothbrush.But to there is motor amplitude small for such motor at present, especially
In the case of damping, amplitude decay is big；Complex process is made, production cost is high.
Therefore, a kind of new electric machine structure for optimizing motor amplitude versus frequency characte is needed at present, the frequency according to driving can be with
Amplitude is controlled, more preferable application effect is reached；Improve assembly technology, reduce manufacturing cost；Using brushless electric machine, extension uses the longevity
Life.
The content of the invention
The invention aims to solve above-mentioned technical problem there is provided a kind of brushless ac vibration micro machine, electricity is realized
The new electric machine structure of machine amplitude versus frequency characte optimization, the frequency according to driving can control amplitude, reach more preferable application effect；Change
Kind assembly technology, reduces manufacturing cost；Using brushless electric machine, the purpose increased the service life.
To achieve these goals, micro machine is vibrated the invention provides a kind of brushless ac, including：
Rotor, the rotor includes axle, the first core lamination stack and the second core lamination stack through axle；
Stator, the stator includes the line through axle and in the middle of first core lamination stack and second core lamination stack
Circle, and around axle, the first bar magnet of coil and first core lamination stack and second core lamination stack, Article 2
Shape magnet, Article 3 shape magnet and Article 4 shape magnet.
Preferably, each bar magnet includes the first area at the top of magnet, second area and magnet in the middle part of magnet
3rd region of bottom,
Wherein, the first area and the 3rd region are region of magnetizing, magnetizing direction for radially, and the first area and
The opposite polarity of described 3rd region the same side, the second area does not have magnetic,
Wherein, magnetic and the first of adjacent bar magnet of the first area of each bar magnet towards the first core lamination stack side
Region towards the first core lamination stack side magnetic on the contrary, and each bar magnet the 3rd region towards the second core lamination stack
The magnetic of side is opposite with the magnetic of the 3rd region towards the second core lamination stack side of adjacent bar magnet.
Preferably, also include：
Magnet holder for fixing bar magnet；
Accommodate the valve jacket of rotor and stator；
It is installed on the bottom of valve jacket bottom；
Bearing positioned at first core lamination stack and the second core lamination stack two ends；And
Pad between first core lamination stack and second core lamination stack and the bearing.
Preferably, the bottom is made up of insulating materials, and is provided with two wire guiding channels, with lead-out wire respectively
Enclose the two ends of wire.
Preferably, the brushless ac vibration micro machine also includes balance weight assembly.
Preferably, the balance weight assembly includes：Counterweight copper sheathing；Upper lid for accommodating counterweight copper sheathing；And fixed plate；
Wherein, the upper lid is fixed on the fixed plate by upper lid fixture, and wherein, the fixed plate passes through fixed plate
Fixture is fixed on magnet holder.
Preferably, the brushless ac vibration micro machine, also including the power supply module being connected with coil, for being carried to coil
For the controllable alternating current of frequency, so as to according to the ac frequency provided come controlled motor amplitude.
Beneficial effects of the present invention are：
The present invention provides the motor amplitude versus frequency characte optimized, and the frequency according to driving can control amplitude, reach more preferable application
Effect；Increase counterweight, amplitude decay is small in the case where there is damping；Pass coil using core lamination stack, arrangement magnet, bottom and lead
Line improves assembly technology, so as to realize reduction manufacturing cost in the way of reaching insulation effect；Using brushless motor structure, from
And extend service life.
Brief description of the drawings
Following description is carried out to the present invention below in conjunction with the accompanying drawings, feature and advantage of the invention will become obvious, this
A little accompanying drawings are not intended to limit the scope of the invention, but in order to show its some attribute, wherein：
Fig. 1 is the overall structure diagram according to an embodiment of the invention that micro machine is vibrated without counterweight brushless ac；
Fig. 2 is the internal structure schematic diagram according to an embodiment of the invention that micro machine is vibrated without counterweight brushless ac；
Fig. 3 is the bottom diagrammatic cross-section that brushless ac according to an embodiment of the invention vibrates micro machine；
Fig. 4 is the overall structure diagram according to an embodiment of the invention for having counterweight brushless ac to vibrate micro machine；
Fig. 5 is the secondary structure schematic diagram according to an embodiment of the invention for having counterweight brushless ac to vibrate micro machine；
Fig. 6 is the internal structure schematic diagram according to an embodiment of the invention for having counterweight brushless ac to vibrate micro machine：
Fig. 7 A are the bar magnet arrangement schematic diagrames of brushless ac vibration micro machine according to an embodiment of the invention；
Fig. 7 B are that the magnet of the line A-A along along Fig. 7 A magnetizes sectional view；
Fig. 7 C are that the magnet of the line B-B along along Fig. 7 A magnetizes sectional view；
Fig. 8 A are the no power fundamental diagrams that brushless ac according to an embodiment of the invention vibrates micro machine；
Fig. 8 B are the positive energization fundamental diagrams that brushless ac according to an embodiment of the invention vibrates micro machine；
Fig. 8 C are the sectional views of the line C-C along along Fig. 8 B；
Fig. 8 D are the sectional views of the line D-D along along Fig. 8 B；
Fig. 8 E are the negative sense energization fundamental diagrams that brushless ac according to an embodiment of the invention vibrates micro machine；
Fig. 8 F are the sectional views of the line C-C along along Fig. 8 E；
Fig. 8 G are the sectional views of the line D-D along along Fig. 8 E；
In figure：
1. axle
2. bearing
3. pad
41. the first core lamination stack
42. the second core lamination stack
5. coil
61. the first bar magnet
62. the second bar magnet
63. Article 3 shape magnet
64. Article 4 shape magnet
7. magnet holder
8. valve jacket
9. bottom
10. counterweight copper sheathing
11. on cover
12. on lid fixture
13. fixed plate
14. fixed plate fixture
15. wire guiding channel.
Embodiment
The technique effect of the design of the present invention, concrete structure and generation is carried out below with reference to embodiment and accompanying drawing clear
Chu, complete description, to be completely understood by the purpose of the present invention, scheme and effect.It should be noted that in situation about not conflicting
Under, the feature in embodiment and embodiment in the application can be mutually combined.The identical accompanying drawing mark used everywhere in accompanying drawing
Note indicates same or analogous part.
It should be noted that unless otherwise specified, be referred to as " fixing " when a certain feature, " connection " in another feature,
It can directly fix, be connected in another feature, can also indirectly fix, be connected in another feature.In addition, this
The description such as upper and lower, left and right used in invention is only that the mutual alignment of each part of the invention relative in accompanying drawing is closed
For system.
With reference to Fig. 1 and 2, it illustrates the entirety according to an embodiment of the invention that micro machine is vibrated without counterweight brushless ac
Structure and internal structure schematic diagram.According to the embodiment, brushless ac vibration micro machine of the invention includes：
Rotor, the rotor includes axle 1, the first core lamination stack 41 and the second core lamination stack 42 through axle 1；
Stator, the stator is included through axle 1 and in the middle of first core lamination stack 41 and second core lamination stack 42
Coil 5, and around axle 1, coil 5 and first core lamination stack 41 and second core lamination stack 42 the first bar shaped
Magnet 61, the second bar magnet 62, Article 3 shape magnet 63 and Article 4 shape magnet 64.
Also include：
Magnet holder 7 for fixing bar magnet 61,62,63,64；
Accommodate the valve jacket 8 of rotor and stator；And
The bottom 9 of the bottom of valve jacket 8 is installed on, the axle positioned at first core lamination stack 41 and the two ends of the second core lamination stack 42
Hold 2, and the pad 3 between first core lamination stack 41 and second core lamination stack 42 and the bearing 2.
Reference picture 3, is cutd open it illustrates the bottom according to an embodiment of the invention for vibrating micro machine without counterweight brushless ac
Face schematic diagram.According to a preferred embodiment of the invention, bottom 9 is made up of insulating materials, and it is logical to be provided with two wire guiding
Road 15, to draw the two ends of the wire of coil 5 respectively.It is understood that the invention is not limited in motor bottom, the present invention is also
The motor housing of other appropriate locations can be selected to retain wire guide according to different arrangement of parts.
Reference picture 4,5 and 6, has counterweight brushless ac to vibrate the whole of micro machine it illustrates according to an embodiment of the invention
Body structure, secondary structure and internal structure schematic diagram.According to a preferred embodiment of the invention, brushless ac of the invention vibration is micro-
Motor also includes balance weight assembly, and the balance weight assembly includes：Counterweight copper sheathing 10；Upper lid 11 for accommodating counterweight copper sheathing 10；With
And fixed plate 13；Wherein, the upper lid 11 is fixed on the fixed plate 13 by upper lid fixture 12, and wherein, it is described solid
Fixed board 13 is fixed on magnet holder 7 by fixed plate fixture 14.But it is understood that, the invention is not limited in this,
The present invention can need to select different weight materials and structure according to different.
Reference picture 7A, 7B and 7C, it illustrates the bar shaped that brushless ac according to an embodiment of the invention vibrates micro machine
Magnet array schematic diagram and the sectional view that magnetizes.According to a preferred embodiment of the invention, each bar magnet 61,62,63,64 is wrapped
The 3rd region of the first area at the top of magnet, the second area in the middle part of magnet and magnet bottom is included, wherein, the first area
With the 3rd region to magnetize region, magnetizing direction is radially, and the first area and described 3rd region the same side
Opposite polarity, the second area does not have magnetic,
Wherein, the first area of each bar magnet 61,62,63,64 towards the side of the first core lamination stack 41 magnetic with it is adjacent
The first area of bar magnet 61,62,63,64 towards the side of the first core lamination stack 41 magnetic on the contrary, and each bar shaped magnetic
Magnetic and adjacent bar magnet 61,62,63,64 of 3rd region of iron 61,62,63,64 towards the side of the second core lamination stack 42
The 3rd region towards the side of the second core lamination stack 42 magnetic it is opposite.
According to a preferred embodiment of the invention, the brushless ac vibration micro machine also includes the confession electrically connected with coil 5
Electric module（It is not shown）, for providing frequency controllable alternating current to coil 5, so as to according to the ac frequency provided
Carry out controlled motor amplitude.
Reference picture 8A, works former it illustrates the no power of brushless ac according to an embodiment of the invention vibration micro machine
Reason figure.During no power, motor shaft is in the presence of Slot force, and the first core lamination stack 41, the second core lamination stack 42 and axle 1 can together
Centerlock.
Reference picture 8B, it illustrates the positive energization work that brushless ac according to an embodiment of the invention vibrates micro machine
Schematic diagram.When forward direction is powered, the magnetic line of force is through the axle 1 in coil 5（Iron core is acted on）, the second core lamination stack 42 is flowed to again via bar shaped
3rd region of magnet 62,63, by valve jacket 8, to the first area of bar magnet 62,63, then via the first core lamination stack
41, axle 1 is returned, closed circuit is completed；Reference picture 8C, it illustrates the sectional view of the line C-C along along Fig. 8 B.C-C sections are due to same
Property is repelled each other, and there is a natural attraction between the sexes, and axle 1 can be rotated clockwise due to the promotion of the second core lamination stack 42；Reference picture 8D, it illustrates edge
The sectional view of line D-D in Fig. 8 B.D-D sections are because identical charges repel each other, and there is a natural attraction between the sexes, axle 1 due to the promotion of the first core lamination stack 41,
It can rotate clockwise；Therefore in logical positive electricity, axle 1 can be rotated clockwise.
Reference picture 8E, it illustrates the negative sense energization work that brushless ac according to an embodiment of the invention vibrates micro machine
Schematic diagram.When negative sense is powered, the magnetic line of force is through the axle 1 in coil 5（Iron core is acted on）, the first core lamination stack 41 is flowed to, then via bar
The first area of shape magnet 61,64, it is then folded via the second iron core to the second area of bar magnet 61,64 by valve jacket 8
Piece 42, returns to axle 1, completes closed circuit；Reference picture 8F, it illustrates the sectional view of the line C-C along along Fig. 8 E.C-C sections due to
Identical charges repel each other, and there is a natural attraction between the sexes, and axle 1 can be rotated counterclockwise due to the promotion of the second core lamination stack 42；Reference picture 8G, is along Fig. 8 E
The sectional view of middle line D-D.D-D sections are because identical charges repel each other, and there is a natural attraction between the sexes, and axle 1, can be inverse due to the promotion of the first core lamination stack 41
Hour hands are rotated；Therefore when logical negative sense is electric, axle 1 can be rotated counterclockwise.
In summary, when to motor indirect current, with the change of the sense of current, core lamination stack 41,42 can be in centre
Line both sides swing back and forth, so that with moving axis 1 around axle center reciprocating rotation at an angle.
The above, simply presently preferred embodiments of the present invention, the invention is not limited in above-mentioned embodiment, as long as
It reaches the technique effect of the present invention with identical means, should all belong to protection scope of the present invention.In the protection model of the present invention
Its technical scheme and/or embodiment can have a variety of modifications and variations in enclosing.
Claims (7)
1. a kind of brushless ac vibrates micro machine, it is characterised in that including：
Rotor, the rotor includes axle（1）, through axle（1）The first core lamination stack（41）With the second core lamination stack（42）；
Stator, the stator is included through axle（1）And positioned at first core lamination stack（41）With second core lamination stack
（42）Middle coil（5）, and around axle（1）, coil（5）And first core lamination stack（41）With second iron core
Lamination（42）The first bar magnet（61）, the second bar magnet（62）, Article 3 shape magnet（63）And Article 4 shape magnet
（64）.
2. brushless ac according to claim 1 vibrates micro machine, it is characterised in that each bar magnet（61、62、63、
64）Include the 3rd region of the first area at the top of magnet, the second area in the middle part of magnet and magnet bottom,
Wherein, the first area and the 3rd region are region of magnetizing, magnetizing direction for radially, and the first area and
The opposite polarity of described 3rd region the same side, the second area does not have magnetic,
Wherein, each bar magnet（61、62、63、64）First area towards the first core lamination stack（41）The magnetic of side with
Adjacent bar magnet（61、62、63、64）First area towards the first core lamination stack（41）The magnetic of side is on the contrary, and every
One bar magnet（61、62、63、64）The 3rd region towards the second core lamination stack（42）The magnetic of side and adjacent bar magnet
（61、62、63、64）The 3rd region towards the second core lamination stack（42）The magnetic of side is opposite.
3. brushless ac according to claim 1 or 2 vibrates micro machine, it is characterised in that also include：
For fixing bar magnet（61、62、63、64）Magnet holder（7）；
Accommodate the valve jacket of rotor and stator（8）；
It is installed on valve jacket（8）The bottom of bottom（9）；
Positioned at first core lamination stack（41）With second core lamination stack（42）The bearing at two ends（2）；And
Positioned at first core lamination stack（41）With second core lamination stack（42）With the bearing（2）Between pad（3）.
4. brushless ac according to claim 3 vibrates micro machine, it is characterised in that the bottom（9）By insulating materials
It is made, and is provided with two wire guiding channels（15）, to draw coil respectively（5）The two ends of wire.
5. brushless ac according to claim 3 vibrates micro machine, it is characterised in that also including balance weight assembly.
6. brushless ac according to claim 5 vibrates micro machine, it is characterised in that the balance weight assembly includes：
Counterweight copper sheathing（10）；
For accommodating counterweight copper sheathing（10）Upper lid（11）；And
Fixed plate（13）；
Wherein, the upper lid（11）Pass through upper lid fixture（12）It is fixed on the fixed plate（13）, and wherein, the fixation
Plate（13）Pass through fixed plate fixture（14）It is fixed on magnet holder（7）.
7. brushless ac according to claim 1 or 2 vibrates micro machine, it is characterised in that also include and coil（5）Connection
Power supply module, for coil（5）There is provided frequency controllable alternating current, so as to according to the ac frequency provided come
Controlled motor amplitude.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710240362.1A CN106953493B (en) | 2017-04-13 | 2017-04-13 | Brushless alternating current oscillation micro motor |
| PCT/CN2017/104744 WO2018188284A1 (en) | 2017-04-13 | 2017-09-30 | Brushless alternating current oscillating micro-motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710240362.1A CN106953493B (en) | 2017-04-13 | 2017-04-13 | Brushless alternating current oscillation micro motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106953493A true CN106953493A (en) | 2017-07-14 |
| CN106953493B CN106953493B (en) | 2023-06-20 |
Family
ID=59475847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710240362.1A Active CN106953493B (en) | 2017-04-13 | 2017-04-13 | Brushless alternating current oscillation micro motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106953493B (en) |
| WO (1) | WO2018188284A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018188284A1 (en) * | 2017-04-13 | 2018-10-18 | 珠海三吉士健康科技有限公司 | Brushless alternating current oscillating micro-motor |
| CN110011515A (en) * | 2019-03-28 | 2019-07-12 | 广东双宇驱动科技有限公司 | A kind of birotor sound wave motor |
| CN110048580A (en) * | 2019-04-23 | 2019-07-23 | 珠海三吉士健康科技有限公司 | Brushless ac reciprocating rotation motor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110323914A (en) * | 2019-07-25 | 2019-10-11 | 珠海三吉士健康科技有限公司 | A kind of brushless vibrating dynamo |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018188284A1 (en) * | 2017-04-13 | 2018-10-18 | 珠海三吉士健康科技有限公司 | Brushless alternating current oscillating micro-motor |
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| CN110048580A (en) * | 2019-04-23 | 2019-07-23 | 珠海三吉士健康科技有限公司 | Brushless ac reciprocating rotation motor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018188284A1 (en) | 2018-10-18 |
| CN106953493B (en) | 2023-06-20 |
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