CN103872875B - Linear electric machine - Google Patents
Linear electric machine Download PDFInfo
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- CN103872875B CN103872875B CN201310681077.5A CN201310681077A CN103872875B CN 103872875 B CN103872875 B CN 103872875B CN 201310681077 A CN201310681077 A CN 201310681077A CN 103872875 B CN103872875 B CN 103872875B
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Abstract
Disclosed herein is a kind of linear electric machine, this linear electric machine includes：Stator department, this stator department has the inner space being formed in this stator department, and described stator department is provided with main magnet；Vibration section, this vibration section includes coil and weight, and described coil is provided towards described main magnet, and described weight moves along described coil, and described weight containment is in the described inner space of described stator department；And elastic component, this elastic component described vibration section of connection and described stator department, wherein, described vibration section includes damping magnet, and this damping magnet generates the electromagnetic force along described main magnet, and described damping magnet is connected with described coil.
Description
Cross-Reference to Related Applications
This application claims entitled " the Linear Motor " that submit on December 12nd, 2012（" linear electric machine "）Korea Spro
The priority of state patent application No.10-2012-0144420, this application full content is integrally incorporated into by way of reference
This.
Technical field
The present invention relates to a kind of linear electric machine.
Background technology
The vibrating function that termination, initial, input state of button etc. are fed back to user is the basic function of mobile phone.
In order to realize vibrating function, mainly use flat（coin type）/ rod-type（bar type）Motor and linear electric machine.Nowadays,
Having of past simply only feeds back the application programs such as the touch smart phone use information of function, the game of termination, and this will
Ask high life and quick response time.In order to meet this purpose, Most current smart phone has employed linear electric machine.
Described linear electric machine is a kind of actuator, and described linear electric machine is designed as weight and the spring of this weight of support is basic
There is specific resonant frequency, and by inputting the signal power close to resonant frequency to winding wire ring electric magnet,
Described linear electric machine is driven under collective effect between permanent magnet.In order that vibration force is maximum, the inner side of described linear electric machine needs
Ensure there are enough spaces, weight moves in described space so that described linear electric machine accelerates, and, need to be by described linear electricity
The outside of machine is designed as reduced size, to meet consumer（Terminal manufacturer）To undersized requirement.
However, structure borne noise can be caused according to the linear electric machine of the related data including following prior art document
Reduce with reliability, and be likely difficult to residual oscillation, the die-away time that improvement is led to due to external impact（falling
time）Deng.
【Prior art document】
【Patent document】
（Patent document 1）US2005-0184601A
Content of the invention
This invention address that providing a kind of linear electric machine, in addition to magnet, described linear electric machine also includes damping magnet, should
Damping magnet produces the electromagnetic force along coil, is led by external action with being reduced using the magnetic pull between damping magnet and magnet
The residual oscillation of cause simultaneously can improve die-away time.
A preferred embodiment of the invention, provides a kind of linear electric machine, and this linear electric machine includes：Stator department,
This stator department has and is formed at its interior inner space, and is provided with main magnet；Vibration section, this vibration section includes coil and weight
Thing, described coil is provided towards described main magnet, and described weight moves along described coil, and described weight containment is in institute
State in the described inner space of stator department；And elastic component, this elastic component described vibration section of connection and described stator department, wherein,
Described vibration section includes damping magnet, this damping magnet produce along described main magnet electromagnetic force, and described damping magnet with
Described coil connects.
Described damping magnet can be provided with hollow bulb, and described damping magnet is formed as ring-type, and described damping magnet is even
It is connected to the peripheral part of described coil.
Described weight can be provided with the installation portion corresponding to described damping magnet, and described damping magnet can be installed
And it is connected to the described installation portion of described weight.
Described stator department can also include housing and bracket, and described housing covers described vibration section and described elastic component, institute
State bracket and be connected to described housing to close the inner space of described housing, described main magnet can be attached to described housing and institute
State at least one of bracket.
Described main magnet can include：First main magnet, this first main magnet is arranged on a surface of described housing
With towards described vibration section；And, the second main magnet, this second main magnet is arranged on a surface of described bracket with direction
Described vibration section.
Described vibration section can also include being connected to the yoke of described damping magnet.
Described stator department can also include tabular yoke, and this tabular yoke is selectively connected to of described first main magnet
Surface and a surface of described second main magnet, a surface of described first main magnet with one of described second main magnet
Surface is relative to each other.
Described stator department can also include being applied to the magnetic fluid around described tabular yoke.
Described stator department can also include magnetic fluid, and this magnetic fluid is optionally coated in of described first main magnet
On one surface of surface and described second main magnet, a surface of described first main magnet and the one of described second main magnet
Individual surface is relative to each other.
Described stator department can also include damping piece, this damping piece be connected to described stator department towards described vibration section
One surface.
Described damping piece can be attached to the direction of described housing and a surface of described vibration section and described bracket
At least one of one surface.
Described coil can be provided with hollow bulb, and described coil is formed as ring-type, and, described damping magnet is permissible
It is provided with hollow bulb, and described damping magnet can be formed as ring-type.
One end of described elastic component can be connected to described stator department, and the other end of described elastic component can be connected to described
Coil or described damping magnet.
Described stator department can also include the printed circuit board (PCB) applying external power source to described coil, and this printing electricity
Road plate can have the one end being connected to described coil and the other end being connected to described bracket.
Described printed circuit board (PCB) can include：Connecting plate, this connecting plate is fixed on described bracket；Elastic, this elastic
Extend from described connecting plate, and described elastic extends to provide elastic force along the hand of spiral；And contact site, this contact site peace
It is loaded on the end of described elastic, and described contact site is connected to described coil to apply external power source.
Described printed circuit board (PCB) can be provided with hollow bulb, with the described main magnet insertion institute being installed in described bracket
State the vertically reciprocating movement in the state of printed circuit board (PCB) it is allowed to described vibration section.
According to another kind of preferred implementation of the present invention, provide a kind of linear electric machine, this linear electric machine includes：Stator
Portion, this stator department has the inner space being formed in this stator department, and described stator department is provided with main magnet；Vibration section,
This vibration section includes coil and weight, and described coil is provided towards described main magnet, and described weight moves along described coil, and
And described weight containment is in the described inner space of described stator department；And elastic component, the described vibration section of this elastic component connection
Even with described stator department, wherein, described vibration section also includes damping magnet and is connected to the yoke of this damping magnet, described damping
Magnet generates the electromagnetic force along described main magnet, and described damping magnet is connected with described coil, and, described stator department
Also include being connected to described main magnet tabular yoke, be applied to around the magnetic fluid on described tabular yoke, be provided towards described
The damping piece of vibration section.
Described stator department can also include housing and bracket, and described housing covers described vibration section and described elastic component, institute
State bracket and be connected to described housing to close the inner space of described housing, described main magnet can be installed on described housing and institute
State at least one of bracket.
Described main magnet can include：First main magnet, this first main magnet is arranged on a surface of described housing
With towards described vibration section；And second main magnet, this second main magnet is arranged on a surface of described bracket with direction
Described vibration section.
Brief description
By the detailed description carrying out below in conjunction with accompanying drawing, it is possible to be more clearly understood that the above and other mesh of the present invention
, feature and advantage, in accompanying drawing：
Fig. 1 is the sectional view schematically showing the linear electric machine according to the first preferred implementation of the present invention；
Fig. 2 is the exploded perspective view schematically showing the linear electric machine in Fig. 1；
Fig. 3 is the sectional view schematically showing the linear electric machine according to second preferred implementation of the present invention；
Fig. 4 is the sectional view schematically showing the linear electric machine according to the third preferred implementation of the present invention；
Fig. 5 is the sectional view schematically showing the linear electric machine according to the 4th kind of preferred implementation of the present invention；
Fig. 6 is the sectional view schematically showing the linear electric machine according to the 5th kind of preferred implementation of the present invention；
Fig. 7 is the sectional view schematically showing the linear electric machine according to the 6th kind of preferred implementation of the present invention；
Fig. 8 is the sectional view schematically showing the linear electric machine according to the 7th kind of preferred implementation of the present invention；
Fig. 9 is the sectional view schematically showing the linear electric machine according to the 8th kind of preferred implementation of the present invention；
Figure 10 is the cross-sectional schematic schematically showing the linear electric machine according to the 9th kind of preferred implementation of the present invention.
Specific embodiment
By the detailed description to the preferred embodiment of the present invention below in conjunction with the accompanying drawings, it will be more clearly understood that this
Bright objects, features and advantages.In all of the figs, identical reference is used for representing same or analogous part, and
Eliminate the unnecessary description with regard to same or analogous part.Additionally, in following description, term " first ", " second ",
" side ", " opposite side " etc. are used for differentiating a part and another part, but the construction of these parts should not be subject to
The restriction of these terms.Additionally, in the description of the invention, when the detailed description determining correlation technique can obscure the present invention
During purport, then omit this description.
Hereinafter, will be described in detail with reference to the accompanying drawings the external rotor electric machine according to the present invention.
Fig. 1 is the sectional view of the linear electric machine according to the first preferred implementation of the present invention for the schematic presentation, and Fig. 2
It is the exploded perspective view of linear electric machine in Fig. 1.
As illustrated, linear electric machine 100 includes stator department 110, vibration section 120 and elastic component 130, this elastic component 130
Stator department 110 is connected with vibration section 120.
Additionally, stator department 110 includes main magnet 111a and main magnet 111b, housing 112 and bracket 113, vibration section 120
Including coil 121, weight 122, printed circuit board (PCB) 123 and damping magnet 124.
More specifically, the housing 112 of stator department 110 has the inner space surrounding described vibration section.Further, housing
112 have open bottom, and bracket 113 is connected to the open end of housing 112, to cover the bottom of the opening of housing 112.
Further, main magnet 111a and main magnet 111b include the first main magnet and the second main magnet 110b, and this first
Main magnet is connected on a surface of housing 112, so that towards vibration section 120, the second main magnet 110b is connected to bracket 113
On one surface, with towards vibration section 120.
Additionally, the first main magnet 111a and the second main magnet 111b can have the surface being formed as same pole, this shape
The surface becoming same pole is toward each other to increase magnetic efficiency（magnetic efficiency）.
Further, housing 112 can be provided with the installation portion 112a of protrusion, and bracket 113 can be provided with the peace of protrusion
Dress portion 113a, so that the first magnet 111a and the second magnet 111b is more firmly connected to the center of housing 112.
Next, the coil 121 of vibration section 120 be set to relative with main magnet 111a and main magnet 111b.More specifically,
Coil 121 is provided with hollow bulb 121a, thus, the state in hollow bulb 121a is inserted in main magnet 111a and main magnet 111b
In, coil 121 can be with straight reciprocating motion, and, coil 121 can be formed as ring-type.
Further, damping magnet 124 reduces the residual oscillation of described vibration section by using magnetic pull or increases vibration
Brake force（stopping force）, and damping magnet 124 is connected to the peripheral part of coil 121.For this reason, damping magnet 124
It is provided with hollow bulb 122a, and damping magnet 124 can be formed as ring-type.
That is, in order to produce the magnetic pull for improving die-away time, setting damping magnet 124 so that have with
The surface of main magnet different magnetic poles is oppositely arranged towards the surface of neighbouring main magnet.
Further, weight 122 is provided with hollow bulb 123a, and weight 122 can be formed as ring-type, and weight
122 outer surfaces being connected to damping magnet 124.
That is, the hollow bulb 123a of weight 122 is connected to damping magnet 124, the hollow bulb of this damping magnet 124
122a is connected to coil 121, inserts in the state in the hollow bulb 121a of coil 121 in main magnet 111a and main magnet 111b,
Coil 121 can pass through the hollow bulb 121a linear movement of coil 121.
Further, as shown in figure 1, in weight 122, described weight for accommodating and connecting damping magnet 124
Hollow bulb 123a is provided with the installation portion 122b of extension, and this installation portion is formed as the size and dimension corresponding to damping magnet 124,
And the installation portion 122b of described weight can be provided with and be connected to damping magnet 124.
Further, external power source is passed to coil 121, and one end of printed circuit board (PCB) 123 by printed circuit board (PCB) 123
It is connected with coil 121 or weight 122, the other end of printed circuit board (PCB) 123 is connected with bracket 113.
Further, printed circuit board (PCB) 123 is provided with connecting plate 123a, elastic 123b and contact site 123c, wherein, even
Fishplate bar 123a is fixed on bracket 113, and elastic 123b extends along the hand of spiral from connecting plate 123a, and to provide elastic force, contact
Portion 123c is arranged at the end of elastic 123b and is connected to described coil to apply described external power source.
Additionally, the contact site 123c of printed circuit board (PCB) 123 can be shaped as, thus with the coil as contact target
The shape of weight or size corresponding.
Further, printed circuit board (PCB) 123 is provided with hollow bulb 123b, thus main in second being installed in bracket 113
It is allowed to the vertically reciprocating movement in described vibration section in the state that magnet 111b inserts in hollow bulb 123b.
According to above-mentioned construction, printed circuit board (PCB) 123 extends along the hand of spiral and is looped around the outside of described construction, so that the
Two main magnets 111b are contained in printed circuit board (PCB) 124, thus being connected to coil 121, thus the opposite side in described elastic component
It is elastically supported vibration section 120.For this reason, printed circuit board (PCB) 123 can be formed as spring-like or the spiral extending in the hand of spiral
Spring-like.
Further, as described above, elastic component 130 has the one end being connected to stator department 110 and is connected to vibration section 120
The other end, and for example, one end of elastic component 130 is connected to housing 112, and the other end of elastic component 130 is connected to line
Circle 121.
According to above-mentioned construction, included and described main magnetic according to the linear electric machine 100 of the first preferred implementation of the present invention
The damping magnet of body phase pair, by with described coil generating electromagnetic power so that described vibration section linearly vibrates, thus by profit
Reduce the residual oscillation of described vibration section with magnetic pull, and improve the brake force of vibration.
Fig. 3 is the sectional view schematically showing the linear electric machine according to second preferred implementation of the present invention.As Fig. 3
Shown, compared to the linear electric machine according to the first preferred implementation shown in Fig. 1 and Fig. 2, only main magnetic in linear electric machine 200
Body is different.That is, in the linear electric machine 200 according to second preferred implementation of the present invention, described main magnet is only with housing even
Connect.
As shown in figure 3, linear electric machine 200 includes stator department 210, vibration section 220 and elastic component 230, this elastic component 230
Vibration section 220 is connected with stator department 210.
Additionally, stator department 210 can include main magnet 211, housing 212 and bracket 213, vibration section 220 can include
Coil 221, weight 222, printed circuit board (PCB) 223 and damping magnet 224.
Additionally, main magnet 211 is connected on a surface of housing 212, with towards described vibration section.
Additionally, as described above, according to each part of the linear electric machine 200 of second preferred implementation of the present invention and basis
Each part of the linear electric machine of the first preferred implementation of the present invention is identical, and will see figures.1.and.2 and describe each portion in advance
The concrete shape of part and combination, therefore will omit the description to above-mentioned each part.
Fig. 4 is the sectional view schematically showing the linear electric machine according to the third preferred implementation of the present invention.As Fig. 4 institute
Show, compared to the linear electric machine according to the first preferred implementation shown in Fig. 1 and Fig. 2, only main magnet in linear electric machine 300
Different.That is, the linear electric machine 300 according to the third preferred implementation of the present invention, described main magnet is only connected with bracket.
More specifically, linear electric machine 300 can include stator department 310, vibration section 320 and elastic component 330, this elastic component
Vibration section 320 is connected by 330 with stator department 310.
Additionally, stator department 310 can include main magnet 311, housing 312 and bracket 313, and vibration section 320 is permissible
Including coil 321, weight 322, printed circuit board (PCB) 323 and damping magnet 324.
Additionally, main magnet 311 is connected on a surface of bracket 213, with direction and described vibration section.
Additionally, as described above, according to each part of the linear electric machine 300 of the third preferred implementation of the present invention and basis
Each part of the linear electric machine of the first preferred implementation of the present invention is identical, and the description in advance that will see figures.1.and.2 is described
The concrete shape of each part and combination, therefore will omit the description to described each part.
Fig. 5 is the sectional view schematically showing the linear electric machine according to the 4th kind of preferred implementation of the present invention.As Fig. 5
Shown, compared to the linear electric machine according to the first preferred implementation shown in Fig. 1 and Fig. 2, linear electric machine 400 be configured to into
One step includes yoke.That is, in the linear electric machine 400 according to the 4th kind of preferred implementation of the present invention, damping magnet is further
It is connected with yoke.
More specifically, linear electric machine 400 includes stator department 410, vibration section 420 and elastic component 430, this elastic component 430
Vibration section 420 is connected with stator department 410.
Additionally, stator department 410 can include main magnet 411a and main magnet 411b, housing 412 and bracket 413, and
Vibration section 420 can include coil 421, weight 422, printed circuit board (PCB) 423, damping magnet 424 and yoke 425.
Further, damping magnet 424 is connected to described yoke.In such case, it is contemplated that damping effect and motion
Load, yoke 425 can be connected to inner peripheral surface or the outer surface of damping magnet 424, and, as a kind of embodiment,
As shown in figure 5, yoke 425 is connected to the inner peripheral surface of damping magnet 424, i.e. between coil 421 and damping magnet 424.
Additionally, as described above, according to each part of the linear electric machine 400 of the 4th kind of preferred implementation of the present invention and basis
Each part of the linear electric machine 100 of the first preferred implementation of the present invention is identical, and will see figures.1.and.2 and describe in advance
The concrete shape of described each part and combination, therefore will omit the description to described each part.
Fig. 6 is the sectional view schematically showing the linear electric machine according to the 5th kind of preferred implementation of the present invention.As Fig. 6
Shown, compared to the linear electric machine according to the first preferred implementation shown in Fig. 1 and Fig. 2, linear electric machine 500 be configured to into
One step includes tabular yoke iron.That is, in the linear electric machine 500 according to the 5th kind of preferred implementation of the present invention, damping magnet is entered
One step and tabular yoke（plate yoke）Connect.
More specifically, linear electric machine 500 can include stator department 510, vibration section 520 and elastic component 530, this elastic component
Vibration section 520 is connected by 530 with stator department 510.
Additionally, stator department 510 can include main magnet 511a and main magnet 511b, housing 512, bracket 513 and tabular
Yoke 514, and vibration section 520 can include coil 521, weight 522, printed circuit board (PCB) 523 and damping magnet 524.
Further, main magnet 511a and main magnet 511b are connected to tabular yoke 514.In this case, tabular yoke 514
Can respectively or be selectively connected to a surface of the first main magnet 511a（With towards vibration section 520）With the second main magnet
One surface of 511b（With towards vibration section 520）.First main magnet 511a is arranged on 512 1 surfaces of housing, and the
Being arranged on 513 1 surfaces of bracket of two main magnets 511b.
Additionally, as shown in fig. 6, as a kind of preferred implementation, tabular yoke 514 is connected to the one of the first main magnet 511a
Individual surface, thus towards the second main magnet 511b.
Additionally, as described above, according to each part of the linear electric machine 500 of the 5th kind of preferred implementation of the present invention and basis
Each part of the linear electric machine 100 of the first preferred implementation of the present invention is identical, and will see figures.1.and.2 and describe in advance
The concrete shape of described each part and combination, therefore will omit the description to described each part.
Fig. 7 is the sectional view schematically showing the linear electric machine according to the 6th kind of preferred implementation of the present invention.As Fig. 7
Shown, compared to the linear electric machine according to the 5th kind of preferred implementation shown in Fig. 6, linear electric machine 600 is configured to further
Including magnetic fluid.That is, the linear electric machine 600 according to the 6th kind of preferred implementation of the present invention, magnetic fluid is applied to around described
Around tabular yoke.
More specifically, linear electric machine 600 can include stator department 610, vibration section 620 and elastic component 630, this elastic component
Vibration section 620 is connected by 630 with stator department 610.
Additionally, stator department 610 can include main magnet 611a and main magnet 611b, housing 612, bracket 613, tabular yoke
614 and be applied to magnetic fluid 615 around tabular yoke 614, vibration section 620 can include coil 621, weight 622, printing electricity
Road plate 623 and damping magnet 624.
Further, tabular yoke 614 can respectively or be selectively connected to a surface of the first main magnet 611a（With
Towards vibration section 620）A surface with the second main magnet 611b（With towards vibration section 620）, the first main magnet 611a installation
On 612 1 surfaces of housing, the second main magnet 611b is arranged on 613 1 surfaces of bracket, and as shown in fig. 7, tabular yoke 614
It is connected to the surface with direction the second main magnet 611b in the first main magnet 611a, and magnetic fluid 615 is applied to around tabular
Yoke 614.
According to above-mentioned construction, when stator department 610 and vibration section 620 rub or collide, magnetic fluid 615 can mitigate
Vibrations, thus reduce noise.
Additionally, as described above, according to each part of the linear electric machine 600 of the 6th kind of preferred implementation of the present invention and basis
Each part of the linear electric machine 100 of the first preferred implementation of the present invention is identical, and will see figures.1.and.2 and describe in advance
The concrete shape of described each part and combination, therefore will omit to described each component representation.
Fig. 8 is the sectional view of the linear electric machine according to the 7th kind of preferred implementation of the present invention for the schematic presentation.As Fig. 8 institute
Show, compared to the linear electric machine according to the first preferred implementation shown in Fig. 1, linear electric machine 700 is configured to wrap further
Include magnetic fluid.That is, in the linear electric machine 700 according to the 7th kind of preferred implementation of the present invention, magnetic fluid is coated in phase each other
To described main magnet between.
More specifically, linear electric machine 700 can include stator department 710, vibration section 720 and elastic component 730, this elastic component
Vibration section 720 is connected by 730 with stator department 710.
Additionally, stator department 710 can include main magnet 711a and main magnet 711b, housing 712, bracket 713 and coating
Magnetic fluid 714 in described main magnet, and vibration section 720 can include coil 721, weight 722, printed circuit board (PCB) 723
With damping magnet 724.
Further, main magnet 714 can respectively or be selectively connected to a surface of the first main magnet 711a（With
Towards vibration section 710）, and a surface of the second main magnet 711b（With towards vibration section 720）, the first main magnet 711a peace
It is contained on 712 1 surfaces of housing, the second main magnet 711b is arranged on 713 1 surfaces of bracket, and, as shown in figure 8, make
For a kind of preferred implementation, magnetic fluid 714 is coated between the first main magnet 711a and the second main magnet 711b.
According to such scheme, when stator department 710 and vibration section 720 rub or collide, can be mitigated by magnetic fluid 714
Vibrations, thus reduce noise.
Additionally, as described above, according to each part of the linear electric machine 700 of the 7th kind of preferred implementation of the present invention and basis
Each part of the linear electric machine 100 of the first preferred implementation of the present invention is identical, and will see figures.1.and.2 and describe in advance
Described each part concrete shape and combination, therefore will omit the description to described each part.
Fig. 9 is the sectional view schematically showing the linear electric machine according to the 8th kind of preferred implementation of the present invention.As Fig. 9
Shown, compared to the linear electric machine according to the first preferred implementation shown in Fig. 1, linear electric machine 800 is configured to further
Including damping piece.That is, the linear electric machine 800 according to the 8th kind of preferred implementation of the present invention, damping piece is connected to described stator
Towards a surface of described vibration section in portion.
More specifically, linear electric machine 800 includes stator department 810, vibration section 820 and elastic component 830, this elastic component 830
Footpath vibration section 820 is connected with stator department 810.
Additionally, stator department 810 can include main magnet 811a and main magnet 811b, housing 812, bracket 813 and damping
Part 814a and damping piece 815b, and vibration section 820 can include coil 821, weight 822, printed circuit board (PCB) 823 and magnetic Damping
Body 824.
Further, damping piece 814a and damping piece 814b can simultaneously or selectively be installed on of bracket 813
On surface, with towards vibration section 820, and, as shown in figure 9, as a kind of preferred implementation, damping piece 814a and damping piece
814b is separately mounted on a surface of housing 812 and a surface of bracket 813.
According to above-mentioned construction, when stator department 810 and vibration section 820 rub or collide, damping piece 814 can mitigate
Vibrations, thus reduce noise.
Additionally, as described above, according to each part of the linear electric machine 800 of the 8th kind of preferred implementation of the present invention and basis
Each part of the linear electric machine 100 of the first preferred implementation of the present invention is identical, and will see figures.1.and.2 and describe in advance
Described each part concrete shape and combination, therefore will omit the description to described each part.
Figure 10 is the cross-sectional schematic schematically showing the linear electric machine according to the 9th kind of preferred implementation of the present invention.
As shown in Figure 10, compared to the linear electric machine according to the first preferred implementation, linear electric machine shown in Fig. 1
900 are configured to further include tabular yoke, magnetic fluid, yoke and damping piece.
That is, it is configured to including being respectively included in basis according to the linear electric machine 900 of the 9th kind of preferred implementation of the present invention
The 4th kind of preferred implementation of the present invention, the 5th kind of preferred implementation, the 6th kind of preferred implementation, the 8th kind be preferable to carry out
Described tabular yoke during the motor of mode is each, described magnetic fluid, described yoke and described damping piece.
More specifically, linear electric machine 900 includes stator department 910, vibration section 920 and elastic component 930, this elastic component 930
Vibration section 920 is connected with stator department 910.
Additionally, stator department 910 can include main magnet 911a and main magnet 911b, housing 912, bracket 913, tabular yoke
914th, magnetic fluid 915, damping piece 916a and damping piece 916b, and vibration section 920 can include coil 921, weight 922, print
Printed circuit board 923, damping magnet 924 and yoke 925.
Further, as described above, according to each part of the linear electric machine 900 of the 9th kind of preferred implementation of the present invention with
Each part of the linear electric machine 100 according to the first preferred implementation of the present invention is identical, and its additional part and basis
The 4th kind of preferred implementation of the present invention, the 5th kind of preferred implementation, the 6th kind of preferred implementation, the 8th kind be preferable to carry out
The corresponding component of the linear electric machine of mode is identical, and will describe its concrete shape and combination in advance, therefore right by omitting
Its description.
According to the preferred embodiment of the present invention it is provided that a kind of linear electric machine, in addition to described magnet, described line
Property motor can also include damping magnet, this damping magnet produce along described coil electromagnetic force, so that described resistance can be utilized
Magnetic pull between Buddhist nun's magnet and described magnet reduces the residual oscillation being led to by external action and improves die-away time.
Although for purposes of illustration, embodiments of the present invention have been given with disclosure, but it is understood that, this
Bright be not limited to this, those skilled in the art can carry out various repairing without departing from the scope and spirit in the present invention
Change, increase and replace.
Correspondingly, any and all modifications, variation or equivalence setting all should be within the scope of the present invention,
The concrete protection domain of the present invention discloses in the appended claims.
Claims (12)
1. a kind of linear electric machine, this linear electric machine includes：
Stator department, this stator department has the inner space being formed in this stator department, and described stator department is provided with main magnet；
Vibration section, this vibration section includes coil and weight, and described coil is provided towards described main magnet, and described weight is along institute
State coil to move, and described weight containment is in the described inner space of described stator department；And
Elastic component, this elastic component connects described vibration section and described stator department,
Wherein, described vibration section includes damping magnet, and this damping magnet produces the electromagnetic force along described main magnet, and described resistance
Buddhist nun's magnet is connected with described coil, and described stator department also includes being connected to the tabular yoke of described main magnet, is applied to around described
The magnetic fluid of tabular yoke, described damping magnet is provided with hollow bulb, and described damping magnet is formed as ring-type, and described damping magnet
It is connected to the peripheral part of described coil；
Wherein, described weight is provided with the installation portion corresponding to described damping magnet, and described damping magnet is mounted and connected
Described installation portion in described weight；
Wherein, described stator department also includes housing and bracket, and described housing covers described vibration section and described elastic component, described support
Frame is connected to described housing and is attached in described housing and described bracket with closing the inner space of described housing, described main magnet
At least one；
Wherein, described main magnet includes：
First main magnet, this first main magnet is arranged on a surface of described housing with towards described vibration section；And
Second main magnet, this second main magnet is arranged on a surface of described bracket with towards described vibration section.
2. linear electric machine according to claim 1, wherein, described vibration section also includes being connected to the magnetic of described damping magnet
Yoke.
3. linear electric machine according to claim 1, wherein, this tabular yoke is selectively connected to described first main magnet
One surface and a surface of described second main magnet, a surface of described first main magnet and described second main magnet
One surface is relative to each other.
4. linear electric machine according to claim 1, wherein, described stator department also includes magnetic fluid, this magnetic fluid selectivity
Be coated on a surface of described first main magnet and a surface of described second main magnet, described first main magnet
One surface of one surface and described second main magnet is relative to each other.
5. linear electric machine according to claim 1, wherein, described stator department also includes damping piece, and this damping piece is connected to
A surface towards described vibration section of described stator department.
6. linear electric machine according to claim 5, wherein, described damping piece be attached to described housing towards described vibration
At least one of surface for one surface in portion and described bracket.
7. linear electric machine according to claim 1, wherein, described coil is provided with hollow bulb, and described coil is formed
For ring-type, and described damping magnet is provided with hollow bulb, and described damping magnet is formed as ring-type.
8. linear electric machine according to claim 1, wherein, one end of described elastic component is connected to described stator department, described
The other end of elastic component is connected to described coil or described damping magnet.
9. linear electric machine according to claim 1, wherein, described stator department also includes applying external power source to described line
The printed circuit board (PCB) of circle, and this printed circuit board (PCB) has and is connected to one end of described coil and is connected to the another of described bracket
End.
10. linear electric machine according to claim 9, wherein, described printed circuit board (PCB) includes：
Connecting plate, this connecting plate is fixed on described bracket；
Elastic, this elastic extends from described connecting plate, and described elastic extends along the hand of spiral to provide elastic force；With
And
Contact site, this contact site is installed on the end of described elastic, and described contact site is connected to described coil to apply
External power source.
11. linear electric machines according to claim 10, wherein, described printed circuit board (PCB) is provided with hollow bulb, to install
Insert in the state of described printed circuit board (PCB) it is allowed to the vertically reciprocating shifting in described vibration section in the described main magnet in described bracket
Dynamic.
A kind of 12. linear electric machines, this linear electric machine includes：
Stator department, this stator department has the inner space being formed in this stator department, and described stator department is provided with main magnet；
Vibration section, this vibration section includes coil and weight, and described coil is provided towards described main magnet, and described weight is along described
Coil moves, and described weight containment is in the described inner space of described stator department；And
Elastic component, this elastic component connects described vibration section and described stator department,
Wherein, described vibration section also includes damping magnet and is connected to the yoke of this damping magnet, and described damping magnet generates edge
The electromagnetic force of described main magnet, and described damping magnet is connected with described coil, and,
Described stator department also includes being connected to the tabular yoke of described main magnet, is applied to magnetic fluid around described tabular yoke, sets
It is set to the damping piece towards described vibration section；Described damping magnet is provided with hollow bulb, and described damping magnet is formed as ring-type, and
Described damping magnet is connected to the peripheral part of described coil；
Wherein, described stator department also includes housing and bracket, and described housing covers described vibration section and described elastic component, described support
Frame is connected to described housing and is arranged in described housing and described bracket with closing the inner space of described housing, described main magnet
At least one in；
Wherein, described main magnet includes：
First main magnet, this first main magnet is arranged on a surface of described housing with towards described vibration section；And
Second main magnet, this second main magnet is arranged on a surface of described bracket with towards described vibration section.
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| KR10-2012-0144420 | 2012-12-12 | ||
| KR20120144420 | 2012-12-12 |
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| CN106475293B (en) * | 2015-08-24 | 2019-05-17 | 中国科学院声学研究所 | The inertial exciter of twin coil single action magnet structure based on magnetic fluid heat dissipation |
| US10573139B2 (en) | 2015-09-16 | 2020-02-25 | Taction Technology, Inc. | Tactile transducer with digital signal processing for improved fidelity |
| CN105553217B (en) * | 2016-02-27 | 2019-12-13 | 歌尔股份有限公司 | Vibration motor |
| KR101855335B1 (en) * | 2016-07-01 | 2018-05-08 | 주식회사 예일전자 | Apparatus for generating sound by using vehivle body |
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| CN107317454A (en) * | 2017-08-11 | 2017-11-03 | 歌尔股份有限公司 | Linear vibration motor |
| CN107257190B (en) * | 2017-08-11 | 2020-06-02 | 歌尔股份有限公司 | Linear vibration motor |
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| CN103872875A (en) | 2014-06-18 |
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