CN110266171A - Vibrating motor - Google Patents
Vibrating motor Download PDFInfo
- Publication number
- CN110266171A CN110266171A CN201910439272.4A CN201910439272A CN110266171A CN 110266171 A CN110266171 A CN 110266171A CN 201910439272 A CN201910439272 A CN 201910439272A CN 110266171 A CN110266171 A CN 110266171A
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- China
- Prior art keywords
- vibration
- fixed
- vibrating motor
- magnet steel
- motor according
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Classifications
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- 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
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/18—Machines moving with multiple degrees of freedom
Abstract
The present invention provides a kind of vibrating motors comprising pedestal, vibration unit, elastic component and coil block；Vibration unit includes mass block and magnet steel；The vibration unit includes the magnet steel for being supported in the mass block of the elastic component and being fixed on the mass block and being oppositely arranged with the coil block；The magnetizing direction of the magnet steel is thickness direction；Driving signal is applied to the coil block, the elastic component supports the vibration unit and vibrates along the direction perpendicular to magnetizing direction, by adjusting the driving signal so that the vibration unit along perpendicular to magnetizing direction the first direction of vibration, perpendicular to magnetizing direction and perpendicular to the second direction of vibration of first direction of vibration, positioned at where first direction of vibration and second direction of vibration either in the third direction of vibration of plane to vibration.Compared with the relevant technologies, vibrating motor of the invention realizes multidirectional vibration, and vibrating effect is excellent.
Description
[technical field]
The present invention relates to motor field more particularly to a kind of vibrating motors for portable consumer electronic product.
[background technique]
With the development of electronic technology, portable consumer electronic product is increasingly pursued by people, such as mobile phone, palm
Game machine, navigation device or palm multimedia entertainment equipment etc. can all use vibrating motor generally to do system feedback, such as hand
Incoming call prompting, information alert, navigation hint, vibrational feedback of game machine of machine etc..It is so widely applied, it is desirable to vibration electricity
The performance of machine is high, and stability is good and long service life.
The linear vibration electric motor of the relevant technologies includes pedestal, the vibration list in the accommodating space for having accommodating space
The vibration unit is fixed and is suspended in the elastic component of the accommodating space and is fixed on the coil of the pedestal by member, passes through
The magnetic field interaction that the magnetic field and vibration unit that coil energization generates generate, so that the vibration unit be driven to do reciprocating linear
It moves and generates vibration.
However, the linear oscillator unit can only carry out linearly in one direction in the linear vibration electric motor of the relevant technologies
Vibration, vibrating effect is single.
Therefore, it is really necessary to provide the new vibrating motor of one kind to solve the above problems.
[summary of the invention]
The purpose of the present invention is to provide a kind of vibrating motor, which can be realized direction vibration, so that it shakes
Dynamic effect is excellent.
In order to solve the above technical problems, the present invention provides a kind of vibrating motor comprising there is the pedestal of accommodating space, set
In the vibration component in the accommodating space and it is fixed on the pedestal and drives the coil block of the vibration component vibration,
The vibration component includes being fixed on the elastic component of the pedestal and being suspended in the accommodating space by the elastic component
Vibration unit, the vibration unit include be supported in the mass block of the elastic component and be fixed on the mass block and with institute
State the magnet steel that coil block is oppositely arranged；The magnetizing direction of the magnet steel is thickness direction；The coil block is applied and is driven
Signal, the elastic component support the vibration unit along the first direction of vibration vibration perpendicular to magnetizing direction or along perpendicular to filling
Magnetic direction and perpendicular to the second direction of vibration of first direction of vibration vibrate or along be located at first direction of vibration and
The third vibration not being overlapped in the plane of second direction of vibration and with first direction of vibration and second direction of vibration
Dynamic direction vibration, the vibration component have so that the vibration unit vibrate along first direction of vibration it is first intrinsic total
Vibration frequency and the second natural reonant frequency vibrated along second direction of vibration, by adjusting the driving signal, so that institute
Vibration unit is stated either along first direction of vibration, second direction of vibration, the third direction of vibration to vibration
It is dynamic.
Preferably, when the frequency of the driving signal corresponds to first natural reonant frequency, the vibration unit edge
The first direction of vibration vibration, first direction of vibration are straight line.
Preferably, when the frequency of the driving signal corresponds to second natural reonant frequency, the vibration unit edge
The second direction of vibration vibration, second direction of vibration are straight line.
Preferably, when the frequency of the driving signal corresponds to first natural reonant frequency and described second inherently simultaneously
When resonant frequency, the vibration unit is vibrated along the third direction of vibration, and the third direction of vibration is non-rectilinear.
Preferably, when the vibration unit is vibrated along the third direction of vibration, the non-directional shape is with described
The variation of driving signal and change.
Preferably, the magnet steel includes the first magnet steel being mutually permanently connected and second magnet steel, first magnet steel
It is opposite with the magnetizing direction of second magnet steel.
Preferably, the pedestal has the first side wall of relative spacing setting and second side of the connection the first side wall
Wall, the elastic component include the first fixed arm for being fixed on the second sidewall, the both ends court respectively by first fixed arm
It is fixed to the first side wall and around the first elastic arm of vibration unit extension, by first elastic arm far from described first
One end of arm is towards the mass block and around the second elastic arm of vibration unit bending extension and by second elastic arm
The second fixed arm that one end far from first elastic arm extends, second fixed arm are fixed on the mass block.
Preferably, the first mass block of a pair that the mass block includes and is oppositely arranged, first mass block is described in
The setting of the first side wall interval, second fixed arm are fixedly connected with first mass block.
Preferably, the mass block further includes the second mass of a pair of connection first mass block and relative spacing setting
Block, first mass block and second mass block, which enclose, is set as through-hole, and first magnet steel and second magnet steel are contained in
The through-hole.
Preferably, first fixed arm, first elastic arm, second elastic arm and the second fixed upper-arm circumference are set
At the elastic component with open end, the elastic component is two, and the open end of two elastic components is oppositely arranged.
Preferably, first fixed arm, first elastic arm, second elastic arm and the second fixed upper-arm circumference are set
At the elastic component with open end, the elastic component is two, and the open end of two elastic components is oppositely arranged.
Preferably, two elastic components are spaced apart from each other setting along magnetizing direction.
Preferably, the faying face of first magnet steel and second magnet steel is parallel to magnetizing direction.
Preferably, the faying face and first direction of vibration form angle α, and satisfy the following conditional expression: 0 °≤α≤
90°。
Preferably, the pedestal includes outer housing and is covered on the upper cover plate and lower cover plate of the outer housing, institute respectively
It states outer housing, the upper cover plate and the lower cover plate and surrounds the accommodating space jointly, the elastic component is fixed on the shell
Body, the coil block are fixed on the upper cover plate and/or the lower cover plate.
Preferably, the coil block includes being fixed on the iron core of the upper cover plate and/or the lower cover plate and being set around
The coil of the iron core, orthographic projection of the iron core along magnetizing direction in the magnet steel fall into first magnet steel and described simultaneously
Second magnet steel.
Preferably, the coil block includes two, and two coil blocks are individually fixed in the upper cover plate and institute
State lower cover plate.
Preferably, the vibrating motor further includes the flexibility for being fixed on the lower cover plate and being electrically connected with the coil block
Wiring board.
Preferably, the lower cover plate includes from edge to the fixed plate extended far from the accommodating space, the flexible electrical
Road plate includes the outer interconnecting piece being electrically connected with external circuit and the interior interconnecting piece that is electrically connected with the coil block, the outer company
Socket part, which is sticked, is fixed on the fixed plate.
Preferably, the coil block includes being fixed on the first coil component of the lower cover plate and being fixed on described
Second coil block of cover board, the interior interconnecting piece include the first connector being electrically connected with the first coil component and with
Second connector of the second coil block electrical connection, first connector are attached at the lower cover plate, and described second connects
Fitting includes close to one end of the accommodating space from the outer interconnecting piece to towards the upper cover plate direction vertically extending
What one extension and one end from first extension far from the outer interconnecting piece extended towards accommodating space bending
Second extension, second extension are electrically connected with second coil block.
Preferably, first extension and the pedestal interval are arranged.
Compared with the relevant technologies, the vibration unit include be supported in the elastic component mass block and respectively with it is described
The magnet steel that coil block is oppositely arranged；The vibration unit includes being supported in the mass block of the elastic component and being fixed on described
Mass block and the magnet steel being oppositely arranged with the coil block；The magnet steel through-thickness magnetizes；The vibration unit is along vertical
Directly in the first direction of vibration of the magnetizing direction of the magnet steel, along perpendicular to magnetizing direction and perpendicular to first direction of vibration
The second direction of vibration, where being located at first direction of vibration and second direction of vibration plane third direction of vibration
In either to vibration, the vibrating motor is realized along multiple directions and is vibrated, vibrating effect is optimized.
[Detailed description of the invention]
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, in which:
Fig. 1 is the three-dimensional structure diagram of vibrating motor of the present invention；
Fig. 2 is the part isometric structural exploded view of vibrating motor of the present invention；
Fig. 3 is the cross-sectional view of the line A-A along Fig. 1；
Fig. 4 is the stereochemical structure exploded view of outer housing of the present invention and vibration unit；
Fig. 5 is the part-structure installation diagram of outer housing of the present invention and vibration unit；
Fig. 6 is the top view of Fig. 5；
Fig. 7 is the three-dimensional structure diagram of flexible circuit board of the present invention；
Fig. 8 is the direction of vibration schematic diagram of vibrating motor of the present invention；
Fig. 9 is the cross-sectional view of the line B-B along Fig. 1；
Figure 10 is the part-structure installation diagram of the vibrating motor of another embodiment of the present invention.
[specific embodiment]
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiments are merely 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 all other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-10, the present invention provides a kind of vibrating motor 100, including pedestal 1, vibration unit 2, elastic component
3, coil block 4 and flexible circuit board 5, wherein vibration unit 2 and elastic component 3 form vibration component 6.
The pedestal 1 has accommodating space 10, for accommodating the vibration component 6 and the coil block 4.
The pedestal 1 can be structure as a whole, or separate structure.For example, in the present embodiment, the pedestal
1 is separate structure comprising outer housing 11 and the upper cover plate 12 and lower cover plate 13 for being covered on the outer housing 11 respectively, it is described
Outer housing 11, the upper cover plate 12 and the lower cover plate 13 surround the accommodating space 10 jointly.Specifically, outer housing 11 includes
The first side wall 111 of relative spacing setting and with connect the first side wall 111 and be spaced apart from each other the second sidewall of setting
112。
Further, the lower cover plate 13 includes from edge to the fixed plate 131 extended far from the accommodating space 10, institute
Fixed plate 131 is stated for providing fixed support for the flexible circuit board 5.
The vibration unit 2 is contained in the accommodating space 10.
In the present embodiment, the vibration unit 2 includes being supported in the mass block 21 of the elastic component 3 and being fixed on
The mass block 21 and the magnet steel 22 being oppositely arranged with coil block 4；The magnet steel 22 includes magnetizing respectively along magnetizing direction M
First magnet steel 221 and the second magnet steel 222, and first magnet steel 221 and second magnet steel 222 magnetizing direction on the contrary, than
Such as, as shown in Figure 3, first magnet steel 221 is the pole N close to the magnetic pole of the upper cover plate 12, close to the lower cover plate 13
Magnetic pole be the pole S, and second magnet steel 222 close to the upper cover plate 12 magnetic pole be the pole S, close to the lower cover plate 13
Magnetic pole is the pole N.
It is noted that first magnet steel 221 and second magnet steel 222 can be structure as a whole, or
Separate structure, for example, in the present embodiment, first magnet steel 221 and second magnet steel 222 are separate structure, described
First magnet steel 221 and second magnet steel 222 mutually abut and fixation is contained in the accepting hole 210 respectively.
Further, first magnet steel 221 and the equal equal through-thickness of magnetizing direction of second magnet steel 222, institute
The faying face 220 for stating the first magnet steel 221 and second magnet steel 222 is parallel to its magnetizing direction, is defined as the side of magnetizing herein
To for M；
In order to illustrate the vibration principle of the vibration unit 2 more clearly below, here, firstly the need of, it is noted that
Please refer to Fig. 6 and Fig. 8, the vibrating motor 100 can along the magnetizing direction M perpendicular to the magnet steel the first direction of vibration D1,
It shakes along the second direction of vibration D2 perpendicular to magnetizing direction M and perpendicular to the first direction of vibration D1 or along being located at described first
Any one direction vibration in the third direction of vibration D3 of plane, defines institute where dynamic direction D1 and the second direction of vibration D2
State the first direction of vibration D1 along the y axis, the second direction of vibration D2 along the x axis, the first direction of vibration D1 and institute
It states the second direction of vibration D2 to be mutually perpendicular in the horizontal plane, it should be noted that the third direction of vibration D3 and described first
Direction of vibration D1 and the second direction of vibration D2 are generally aligned in the same plane, i.e. horizontal plane；The magnetizing direction of the vibrating motor 100
M is along Z-direction, and magnetizing direction M is both perpendicular to the first direction of vibration D1, the second direction of vibration D2 and described
Three direction of vibration D3, i.e. magnetizing direction M are perpendicular to the first direction of vibration D1, the second direction of vibration D2 and described
Horizontal plane where three direction of vibration D3.
Further, the structure type of first magnet steel 221 and second magnet steel 222 is unlimited.It is described
First magnet steel 221 and second magnet steel 222 can at right angles in triangle, right-angled trapezium or sector one of structure shape
Formula, for example, in the present embodiment, first magnet steel 221 and the rectangular triangle of second magnet steel 222, the knot
Conjunction face 220 is located at first magnet steel 221 of rectangular triangle and the bevel edge position of second magnet steel 222.And the knot
Conjunction face 220 and first vibration direction D1 form angle α, and 0 °≤α≤90 °.
The vibration unit 2 is suspended in the accommodating space 10 by the elastic component 3, is provided for the vibration unit 2
Vibration condition；Specifically, the elastic component 3 is fixed on the outer housing 11.
In the present embodiment, as shown in figure 9, the elastic component 3 includes two and is spaced apart from each other along magnetizing direction M folded
If each elastic component 3 includes being fixed on the first fixed arm 31 of the second sidewall 112, by first fixed arm 31
Both ends be respectively facing the first side wall 111 and around the vibration unit 2 extend the first elastic arm 32, by first bullet
The one end of arm 32 far from first fixed arm 31 towards the mass block 21 and extend around the vibration unit 2 bending the
Two elastic arms 33 and the second fixed arm 34 extended by second elastic arm 33 far from one end of first elastic arm 33, described second
Fixed arm 34 is fixed on the mass block 21；Referring to Fig. 6, wherein second elastic arm 32, the third elastic arm 33 with it is described
Mass block 21 and the setting of the interval of the outer housing 11；First fixed arm 31, first elastic arm 32, second elastic arm 33
And second fixed arm 34 encloses the elastic component 3 for being set as having open end, the open end of two elastic components 3 is opposite
Setting, as shown in Figure 4 and Figure 5, it can be understood as, each fixation is by elastic component 3 in each second sidewall 112
First fixed arm 31, and two first fixed arms 31 are different along the height of magnetizing direction M.It should be noted that matter
Gauge block 21 includes the first mass block of a pair 211 being oppositely arranged, and first mass block 211 is spaced along the first side wall 111
Setting, second fixed arm 34 are fixedly connected with first mass block 211；In the present embodiment, the mass block 21 is in
Annular further includes connecting the second mass block of a pair 212 that first mass block 211 and relative spacing are arranged, and described second
Mass block 212 is parallel to the second sidewall 112；First mass block 211 and second mass block 212 enclose and are set as through-hole
210, first magnet steel 221 and second magnet steel 222 are contained in the through-hole 210；In other embodiments, such as Figure 10 institute
Show, mass block can only include the first mass block 211 ', as long as magnet steel can be made to be fixed on the mass block 211 ' and be connected to
The elastic component 3 '.
First elastic arm 32 of above-mentioned two and the hanging setting of two second elastic arms 33, first elastic arm 32
There is elasticity with second elastic arm 33, in vibration processes, can be provided for shaking for the vibration of the vibration unit 2
Power of moving and support force, so that the vibration unit 2 makees reciprocal elasticity fortune under the collective effect of elastic force and electromagnetic driving force
It is dynamic.
The coil block 4 is fixed on the pedestal 1 to drive the vibration unit 2 to vibrate.
In the present embodiment, the coil block 4 includes being fixed on the upper cover plate 12 and/or the lower cover plate 13
Iron core and the coil for being set around the iron core, the iron core fall into institute in the orthographic projection of the magnet steel 22 along magnetizing direction M simultaneously
State the first magnet steel 221 and second magnet steel 222.In the case where the coil is powered, make the iron core along the pole magnetizing direction M
Change.
It is worth mentioning that the quantity of the coil block 4 and position setting be it is unlimited, can be according to actual design
Demand be specifically arranged.
As an optional embodiment, the coil block 4 includes two, and two coil blocks 4 are respectively
It is fixed on the first coil component 41 of the lower cover plate 13 and the second coil block 42 of the upper cover plate 12, the first coil
Component 41 includes the first iron core 411 and the first coil 412 for being wound in first iron core 411, second coil block 42
Including the second iron core 421 and it is wound in the second coil 422 of second iron core 421, the first coil 412 and described second
The magnetizing direction of coil 422 is identical, for example, as shown in Figure 3, in energization, the first coil 412 is powered, makes institute
The polarization of the first iron core 411 is stated, the top pole of first iron core 411 is the pole N, and bottom end magnetic pole is the pole S；Second coil
422 are powered, and second iron core 421 is made to polarize, and the top pole of second iron core 421 is the pole N, and bottom end magnetic pole is the pole S.Institute
It states flexible circuit board 5 to be fixed on the lower cover plate 13 and be electrically connected with the coil block 4 formation, for being the coil block
4 power supplies.
In the present embodiment, the flexible circuit board 5 include the outer interconnecting piece 51 being electrically connected with external circuit and with
The interior interconnecting piece 52 that the coil block 4 is electrically connected, the outer interconnecting piece 51, which is sticked, is fixed on the fixed plate 131.
Further, the interior interconnecting piece 52 include the first connector 521 being electrically connected with the first coil 412 and
The second connector 522 being electrically connected with second coil 422, first connector 521 are attached at the lower cover plate 13, institute
Stating the second connector 522 includes close to one end of the accommodating space 10 from the outer interconnecting piece 51 to towards the upper cover plate 12
Vertically extending first extension 5221 in direction and one end from first extension 5221 far from the outer interconnecting piece 51
The second extension 5222 extended towards the accommodating space 10 bending, second extension 5222 and second coil group
Part 42 is electrically connected；Further, first extension 5221 is arranged with the pedestal 1 interval.
Above structure by the same flexible circuit board 5 respectively with the first coil 412 and second coil
422 connections, so that the first coil 412 is identical with the energization direction of second coil 422, so that first iron
Core 411 is identical with the polarization direction of second iron core 421.
Described above is the specific structures of the vibrating motor 100, below please refer to shown in Fig. 3 and Fig. 5-6, in conjunction with
Explanation is unfolded in the principle that the specific structure of the vibrating motor 100 vibrates it:
In logical positive electricity (schematic diagram of vibrating motor when Fig. 3 is logical positive electricity), two coil blocks 4 fill
Magnetic, two coil blocks 4 and first magnet steel 221 and second magnet steel 222 are collectively formed magnetic loop, and described second
Iron core 421 is polarized to the pole S close to the side of the magnet steel 22, under the influence of a magnetic field, the pole the N quilt of first magnet steel 221
The pole S attracts, and the pole S of second magnet steel 222 is repelled by the pole S, so that first magnet steel 221 and second magnet steel
222 generate the driving force perpendicular to the faying face 220 to the left in the side close to the upper cover plate 12；First iron core
411 are polarized to the pole N close to the side of the magnet steel 22, and under the influence of a magnetic field, the pole S of first magnet steel 221 is by the pole N
Attract, the pole N of second magnet steel 222 is repelled by the pole N, so that first magnet steel 221 is being leaned on second magnet steel 222
The side of the nearly lower cover plate 13 generates the driving force perpendicular to the faying face 220 to the left.In this case, it produces on the whole
The raw electromagnetic driving force perpendicular to the faying face 220 to the left.
Conversely, the magnetizing direction of the coil block 4 is inverted in logical reversed electricity, i.e., so that first iron core 411
Top pole is the pole N and makes the bottom end pole magnetic pole S, and the top pole of second iron core 421 is the pole N and makes bottom end magnetic pole S
Pole, so that the magnet steel 22 generates electromagnetic driving force perpendicular to the faying face 220 and to the right on the whole.
Under the action of electromagnetic driving force, and two elastic components 3 have the direction along electromagnetic driving force to move respectively
Trend, under the collective effect of electromagnetic driving force and elastic force, so that the vibration unit 2 realizes vibration.
The vibration component 6 that the elastic component 3 and the vibration unit 2 form has so that the vibration unit 2 is along described
The first eigentone and the vibration unit is vibrated along second direction of vibration that first direction of vibration vibrates
The second eigentone.In general, first eigentone and second eigentone are according to vibration
The vibration frequency range of motor is moved to be arranged.
When the frequency of the driving signal corresponds to first natural reonant frequency, at this point, the edge of the vibration component 6
The mode of the first direction of vibration D1 is excited, and the elastic component 3 drives the vibration unit 2 along first direction of vibration
It is of reciprocating vibration on D1.In the present embodiment, the vibration unit 2 makees straight reciprocating motion along the first direction of vibration D1.?
This be emphasized that the frequency of the driving signal corresponds to first eigentone and refers to, in the driving signal
The frequency signal for including is equal or close to first eigentone, so that first eigentone is corresponding
Mode can be excited.
When the frequency of the driving signal corresponds to second natural reonant frequency, the vibration component 6 along described
The mode of second direction of vibration D2 is excited, and the elastic component 3 drives the vibration unit 2 along the second direction of vibration D2
It is of reciprocating vibration.In the present embodiment, the vibration unit 2 makees straight reciprocating motion along the second direction of vibration D2.It needs herein
Refer to it is emphasized that the frequency of the driving signal corresponds to second eigentone, includes in the driving signal
Frequency signal be equal or close to second eigentone so that the corresponding mode of second eigentone
It can be excited.
When the driving signal corresponds to first natural reonant frequency and the second natural reonant frequency simultaneously, the vibration
Dynamic component 6 is fired simultaneously along the mode of the first direction of vibration D1 and the second direction of vibration D2, at this point, in resultant force
Under effect, the elastic component 3 will drive the vibration unit 2 and vibrate along the third direction of vibration D3, referring to Fig. 8, the vibration
It can be regarded as oblique vibration, any one direction of the third direction of vibration D3 between X-axis and Y-axis mainly leads to
Signal of overdriving is determined.In the present embodiment, the vibration unit 2 along the third direction of vibration D3 make it is non-directional move,
Curve described in Fig. 8 is only used as schematic diagram, does not represent the motion profile of the third direction of vibration D3.Specifically, when described
It is described non-when the driving signal that vibrating motor 100 receives drives the vibration unit 2 to vibrate along the third direction of vibration D3
The shape of straight line changes with the variation of the driving signal, it is not limited to a certain non-rectilinear.Specifically it is to be understood that institute
Non-directional shape is stated, i.e., the described vibration unit 2 is by driving signal along the motion profile of the third direction of vibration D3
The proportion of one vibration frequency and the second vibration frequency vibrates frequency when the ingredient of the first vibration frequency is higher than second come what is determined
The ingredient of rate, the third direction of vibration D3 can be closer to the first direction of vibration D1, when the ingredient of the first vibration frequency at this time
Lower than the ingredient of the second vibration frequency, the third direction of vibration D3 can be closer to the second direction of vibration D2 at this time；It needs to infuse
Meaning, driving signal are not limited in embodying in the form of frequency.
It is described herein it is emphasized that the frequency of the driving signal corresponds to first eigentone refers to
The frequency signal for including in driving signal makes first intrinsic vibration equal or close to first eigentone
The corresponding mode of frequency can be excited.
Above-mentioned vibration unit 2 can be realized along the first direction of vibration D1, along the second direction of vibration D2, along institute
Any one direction vibration in third direction of vibration D3 is stated, the multidirectional vibration of the vibrating motor 100 is realized, so that described
Vibrating motor 100 can be realized a variety of vibrating effects, achieve the purpose that optimize its vibration performance.
It should be noted that in energization, electromagnetic drive that the coil block 4 and the magnet steel 22 generate jointly
The direction of power is related with angle α, in practical applications, can realize the side to electromagnetic driving force by adjusting the angle of angle α
To the adjustment with size, and the resultant force for the elastic force that electromagnetic driving force is generated with the elastic component 3 also changes correspondingly, to reach tune
The purpose of the vibrating effect of the whole vibration unit 2, it is noted that when angle α is 0 degree or 90 degree, the vibration is single
Member 2 is vibrated along the first direction of vibration D1 or described second direction of vibration D2, is vibrated for one direction.As shown in Figure 10, exist
In another embodiment of the present invention, the faying face 220 ' between first magnet steel 221 ' and second magnet steel 222 ' with
Angle α between the first direction of vibration D1 ' ' it is 90 degree, at this point, the vibration unit 2 ' is along first direction of vibration
D1 ' single vibration.
Compared with the relevant technologies, in vibrating motor of the invention, the vibration unit includes being supported in the elastic component
Mass block and the magnet steel being oppositely arranged respectively with the coil block；The vibration unit includes being supported in the elastic component
Mass block and the magnet steel for being fixed on the mass block and being oppositely arranged with the coil block；The magnet steel through-thickness fills
Magnetic；The vibration unit perpendicular to magnetizing direction and hangs down along the first direction of vibration of the magnetizing direction perpendicular to the magnet steel, edge
Directly in the second direction of vibration of first direction of vibration, along positioned at first direction of vibration and the second direction of vibration institute
Any one direction vibration in the third direction of vibration of plane, enables the vibrating motor to realize along multiple directions and shakes
It is dynamic, optimize vibrating effect.
Above-described is only embodiments of the present invention, it should be noted here that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, improvement can also be made, but these belong to protection model of the invention
It encloses.
Claims (20)
1. a kind of vibrating motor comprising pedestal, the vibration component that is placed in the accommodating space with accommodating space and
It is fixed on the pedestal and drives the coil block of the vibration component vibration, the vibration component includes being fixed on the pedestal
Elastic component and the vibration unit in the accommodating space is suspended in by the elastic component, which is characterized in that the vibration
Unit includes being supported in the mass block of the elastic component and being fixed on the mass block and be oppositely arranged with the coil block
Magnet steel；The magnetizing direction of the magnet steel is thickness direction；Driving signal, the elastic component bearing are applied to the coil block
The vibration unit is along the first direction of vibration vibration perpendicular to magnetizing direction or along perpendicular to magnetizing direction and perpendicular to described
Second direction of vibration of the first direction of vibration vibrates or along being located at first direction of vibration and second direction of vibration
The third direction of vibration vibration not being overlapped in plane and with first direction of vibration and second direction of vibration, the vibration
Component has so that the first natural reonant frequency that the vibration unit is vibrated along first direction of vibration and along described second
Second natural reonant frequency of direction of vibration vibration, by adjusting the driving signal, so that the vibration unit is along described the
One direction of vibration, second direction of vibration, either in the third direction of vibration to vibration.
2. vibrating motor according to claim 1, which is characterized in that when the frequency of the driving signal corresponds to described first
When natural reonant frequency, the vibration unit is vibrated along first direction of vibration, and first direction of vibration is straight line.
3. vibrating motor according to claim 1, which is characterized in that when the frequency of the driving signal corresponds to described second
When natural reonant frequency, the vibration unit is vibrated along second direction of vibration, and second direction of vibration is straight line.
4. vibrating motor according to claim 1, which is characterized in that described in corresponding simultaneously when the frequency of the driving signal
When the first natural reonant frequency and second natural reonant frequency, the vibration unit is vibrated along the third direction of vibration,
The third direction of vibration is non-rectilinear.
5. vibrating motor according to claim 4, which is characterized in that when the vibration unit is along the third direction of vibration
When vibration, the non-directional shape changes with the variation of the driving signal.
6. vibrating motor according to claim 1, which is characterized in that the magnet steel includes the first magnetic being mutually permanently connected
Steel and the second magnet steel, first magnet steel are opposite with the magnetizing direction of second magnet steel.
7. vibrating motor according to claim 6, which is characterized in that the pedestal has the first side of relative spacing setting
The second sidewall of wall and the connection the first side wall, the elastic component include being fixed on the first of the second sidewall to fix
Arm, the first bullet for being respectively facing the first side wall by the both ends of first fixed arm and extending around the vibration unit
Arm, one end by first elastic arm far from first fixed arm are bent towards the mass block and around the vibration unit
The second elastic arm extended and the second fixed arm extended by second elastic arm far from one end of first elastic arm, described the
Two fixed arms are fixed on the mass block.
8. vibrating motor according to claim 7, which is characterized in that the mass block include and be oppositely arranged a pair of the
One mass block, first mass block are arranged along the first side wall interval, second fixed arm and first mass block
It is fixedly connected.
9. vibrating motor according to claim 8, which is characterized in that the mass block further includes connection first mass
Block and the second mass block of a pair of relative spacing setting, first mass block and second mass block enclose and are set as through-hole, institute
It states the first magnet steel and second magnet steel is contained in the through-hole.
10. vibrating motor according to claim 7, which is characterized in that first fixed arm, first elastic arm, institute
It states the second elastic arm and the second fixed upper-arm circumference is set as the elastic component with open end, the elastic component is two, two
The open end of a elastic component is oppositely arranged.
11. vibrating motor according to claim 1, which is characterized in that two elastic components are mutual along magnetizing direction
Every setting.
12. vibrating motor according to claim 6, which is characterized in that the knot of first magnet steel and second magnet steel
Conjunction face is parallel to magnetizing direction.
13. vibrating motor according to claim 12, which is characterized in that the faying face and the first direction of vibration shape
It at angle α, and satisfies the following conditional expression: 0 °≤α≤90 °.
14. vibrating motor according to claim 6, which is characterized in that the pedestal includes outer housing and lid is set respectively
In the upper cover plate and lower cover plate of the outer housing, the outer housing, the upper cover plate and the lower cover plate surround the receipts jointly
Hold space, the elastic component is fixed on the outer housing, and the coil block is fixed on the upper cover plate and/or the lower cover
Plate.
15. vibrating motor according to claim 14, which is characterized in that the coil block includes being fixed on the upper cover
The iron core of plate and/or the lower cover plate and the coil for being set around the iron core, the iron core is along magnetizing direction in the magnet steel
Orthographic projection falls into first magnet steel and second magnet steel simultaneously.
16. vibrating motor according to claim 14, which is characterized in that the coil block includes two, described in two
Coil block is individually fixed in the upper cover plate and the lower cover plate.
17. vibrating motor according to claim 14, which is characterized in that the vibrating motor further include be fixed on it is described under
Cover board and the flexible circuit board being electrically connected with the coil block.
18. vibrating motor according to claim 17, which is characterized in that the lower cover plate includes from edge to far from described
Accommodating space extend fixed plate, the flexible circuit board include the outer interconnecting piece being electrically connected with external circuit and with the line
The interior interconnecting piece of coil assembly electrical connection, the outer interconnecting piece, which is sticked, is fixed on the fixed plate.
19. vibrating motor according to claim 18, which is characterized in that the coil block includes being fixed on the lower cover
The first coil component of plate and the second coil block for being fixed on the upper cover plate, the interior interconnecting piece include and described first
First connector of coil block electrical connection and the second connector being electrically connected with second coil block, described first connects
Fitting is attached at the lower cover plate, second connector include from the outer interconnecting piece close to one end of the accommodating space to
Towards vertically extending first extension in the upper cover plate direction and from first extension far from the outer interconnecting piece
The second extension that one end extends towards accommodating space bending, second extension are electrically connected with second coil block
It connects.
20. vibrating motor according to claim 19, which is characterized in that first extension is set with the pedestal interval
It sets.
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| CN201910439272.4A CN110266171B (en) | 2019-05-24 | 2019-05-24 | Vibration motor |
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|---|---|---|---|
| CN201910439272.4A CN110266171B (en) | 2019-05-24 | 2019-05-24 | Vibration motor |
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| CN110266171A true CN110266171A (en) | 2019-09-20 |
| CN110266171B CN110266171B (en) | 2021-11-12 |
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| CN201910439272.4A Active CN110266171B (en) | 2019-05-24 | 2019-05-24 | Vibration motor |
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