CN207069868U - Linear vibration motor - Google Patents
Linear vibration motor Download PDFInfo
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- CN207069868U CN207069868U CN201721008969.9U CN201721008969U CN207069868U CN 207069868 U CN207069868 U CN 207069868U CN 201721008969 U CN201721008969 U CN 201721008969U CN 207069868 U CN207069868 U CN 207069868U
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- vibrator component
- linear vibration
- vibration motor
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Abstract
The utility model discloses a kind of linear vibration motor, including：Stator module, stator module include the housing with accommodating chamber, and the magnet of fixation is combined in accommodating chamber and with housing, and magnet includes hollow bulb；Vibrator component, vibrator component include the coil and mass being arranged on magnetic conductive board；Hollow bulb extends along vibrator component direction of vibration, and when vibrator component is vibrated, coil vibrates with vibrator component and inserts the hollow bulb of magnet；Elastic supporting member for supporting optical member, it is configured to vibrator component being suspended in the accommodating chamber of housing；Magnetic conductive board also includes the through hole through magnetic conductive board upper surface and lower surface corresponding with coil inner chamber.Linear vibration motor structure maximizing provided by the utility model utilizes the magnetic of magnet, utilization ratio of the coil for the magnet magnetic line of force is lifted, lifts the electromagnetic actuation force of motor, and assembling process is easy, assembly precision is high so that motor can obtain more preferable vibration performance.
Description
Technical field
The utility model belongs to technical field of electronic products.More particularly, to a kind of linear vibration motor.
Background technology
With the development of the communication technology, portable electric appts, such as mobile phone, tablet personal computer, Intelligent worn device, more matchmakers
Body amusement equipment etc. have become the necessity for life of people.In these electronic equipments, usually using miniature linear oscillator
Motor does the feedback of system, such as vibrational feedback of point touching screen etc..
Linear vibration motor is a kind of part that mechanical oscillation are converted electrical energy into using electromagnetic force principle, and conventional is linear
Vibrating motor is typically mounted in mobile communication terminal, portable terminal etc., and it is typically mounted on the marginal portion of equipment, and
Vibration is produced on the perpendicular direction of the object with receiving vibration.
Existing linear vibration motor generally includes the housing with accommodating chamber, and stator module, oscillator are provided with accommodating chamber
Component and be configured to elastic supporting member for supporting optical member vibrator component being suspended in accommodating chamber.Stator module can be to be fixedly connected with the casing
Magnet or coil, corresponding vibration component can be by elastic supporting member for supporting optical member support carry out upper and lower vibration coil or
Person's magnet.The wherein existing magnet as stator module or vibrator component is column reality cored structure, and coil is centered around magnetic
Body periphery, after coil electricity, coil is subject to Ampere force effect and produces electromagnetic force, and with magnet caused by between magnetic field
Interaction, and then vibrator component is moved up and down, and then whole linear vibration motor can be obtained and vibrated
Effect.
But following defect be present in existing linear vibration motor, 1, the magnetic line of force utilization ratio of magnet it is low, influence whole
Body touch feeling.2nd, existing motor assembling process is complicated, particularly when coil and mass are assembling as vibration component, two
Needed between person by outside positioning tool to ensure coaxially to assemble, installation step is cumbersome, and unmanageable assembling precision.3rd, it is existing
Linear vibrating motor is only applicable to vibrate experience under single-frequency point, and the touch feedback application being unsatisfactory for for multifrequency point vibration will
Ask.
Accordingly, it is desirable to provide a kind of new linear vibration motor, to solve defect present in prior art.
Utility model content
In view of the above problems, the technical problems to be solved in the utility model is to provide a kind of linear vibration motor, the vibration
Motor configuration maximizing utilizes the magnetic of magnet, lifts utilization ratio of the coil for the magnet magnetic line of force, lifts the electricity of motor
Magnetic driving power, and assembling process is easy, assembly precision is high so that motor can obtain more preferable vibration performance.
In order to solve the above technical problems, the utility model uses following technical proposals：
A kind of linear vibration motor, the motor include：
Stator module, the stator module include with accommodating chamber housing, in the accommodating chamber and with the shell
Body combines fixed magnet, and the magnet includes hollow bulb；
Vibrator component, the vibrator component include the coil and mass being arranged on magnetic conductive board；The hollow bulb edge shakes
Sub-component direction of vibration extends, and when the vibrator component is vibrated, the coil vibrates with vibrator component and inserts the magnet
Hollow bulb；
Elastic supporting member for supporting optical member, it is configured to the vibrator component being suspended in the accommodating chamber of the housing；
The magnetic conductive board also includes corresponding with the coil inner chamber through the logical of the magnetic conductive board upper surface and lower surface
Hole.
Further, it is preferable to which scheme is, the vibrator component also includes the center magnetic core being located in the coil inner chamber, described
Center magnetic core includes body, and the bottom of the body is located in the through hole, and the lower surface of the body is no more than institute
The lower surface of magnetic conductive board is stated, the bottom sidewall outer surface of the body combines with corresponding through hole interior side-wall surface and fixed.
Further, it is preferable to which scheme is, the center magnetic core also includes：
Flat part outwardly being extended by the body portion sidewalls and above the coil.
Further, it is preferable to which scheme is, the center magnetic core also includes：
The upper end extended outward by the dome top surface of the body along body axis direction.
Further, it is preferable to scheme is, the magnetic conductive board also include being located in the coil inner chamber by the through hole edge
The side of sidewall portion extended along coil interior side-wall surface, the cavity that the body part of the center magnetic core is formed in the side of sidewall portion
In.
Further, it is preferable to which scheme is, the height of the side of sidewall portion is equal to the height of the coil.
Further, it is preferable to which scheme is, the height of the side of sidewall portion is less than the height of the coil.
Further, it is preferable to which scheme is, the outer side wall surface of the body includes the relief portion for avoiding the side of sidewall portion.
Further, it is preferable to which scheme is, the relief portion further comprises rake corresponding with the top of the side of sidewall portion.
Further, it is preferable to which scheme is, the coil and mass are with reference to the upper surface for being fixed on the magnetic conductive board, the line
Formed with the gap for magnet insertion between circle and mass；The elastic supporting member for supporting optical member is with reference to the following table for being fixed on the magnetic conductive board
Between face and the inner surface of shell bottom wall, and it is configured to the vibrator component being suspended in the accommodating chamber of the housing.
The beneficial effects of the utility model are as follows：
1st, linear vibration motor provided by the utility model, by improving magnet structure and its configuration side with coil
Formula, maximizing utilize the magnetic of magnet, and for the utilization ratio of the magnet magnetic line of force, the electromagnetism for improving motor drives lifting coil
Power, the increase of driving force cause the effective frequency range increase of motor, are easy to the application of double frequency or multifrequency resonant frequency, meet multifrequency point
Under the requirement of vibration sense is provided motor, improve the tactile experience of motor.
2nd, linear vibration motor structure provided by the utility model, motor making technology difficulty is reduced, is improved whole
Body efficiency of assembling.The vibrator component of coil and mass as motor being particularly fixed in motor on magnetic conductive board, due to leading
Magnetic sheet can be integrally formed by processing, and its precision is easily controllable, and then utilize the structure design through the magnetic conductive board through hole, and one
Aspect is easy to location and installation of the coil relative to magnetic conduction Board position, and another aspect center magnetic core can directly be held in place in magnetic conductive board
Through hole in, and the center magnetic core after assembling and coaxial precision between coil and magnetic conductive board are high, simplify the dress of vibrator component
With process, outside positioning tool is eliminated.
3rd, the side of sidewall portion in the coil may further be provided in magnetic conductive board in the utility model, when the height of side of sidewall portion
When degree is less than coil height, also center magnetic core can be directed to by the relief portion in center magnetic core between side of sidewall portion and center magnetic core
Axially mounted position carry out it is spacing, while center magnetic core location and installation is easy to, be additionally favorable for further lifting coil pair
In the utilization ratio of the magnet magnetic line of force.
4th, linear vibration motor provided by the utility model, motor vibrations equilbrium position, vibrator component and stator module
Mutual attractive force is larger, reduces the microvibration under motor no current or light current stream mode, motor is quickly recovered to quiet
Only state.
5th, linear vibration motor structure provided by the utility model, electromagnetic actuation force is big, when shortening motor vibrations rising
Between；The magnetostatic power in motor equilbrium position is big, shortens motor vibrations fall time；It is integrally improved motor response speed.
Brief description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows that the utility model first embodiment provides the structure sectional view of linear vibration motor.
Fig. 2 shows that the utility model first embodiment provides the configuration of vibrator component and magnet in linear vibration motor
Structural representation.
Fig. 3 shows that the utility model second embodiment provides the configuration of vibrator component and magnet in linear vibration motor
Structural representation.
Fig. 4 shows that the embodiment of the utility model the 3rd provides the configuration of vibrator component and magnet in linear vibration motor
Structural representation.
Fig. 5 shows that the embodiment of the utility model the 4th provides the configuration of vibrator component and magnet in linear vibration motor
Structural representation.
Fig. 6 shows that the embodiment of the utility model the 5th provides the configuration of vibrator component and magnet in linear vibration motor
Structural representation.
Fig. 7 shows that the embodiment of the utility model the 6th provides the configuration of vibrator component and magnet in linear vibration motor
Structural representation.
Fig. 8 shows that the embodiment of the utility model the 7th provides the configuration of vibrator component and magnet in linear vibration motor
Structural representation.
Fig. 9 shows that the embodiment of the utility model the 8th provides the configuration of vibrator component and magnet in linear vibration motor
Structural representation.
Figure 10 shows that the embodiment of the utility model the 9th provides matching somebody with somebody for vibrator component and magnet in linear vibration motor
Put structural representation.
Figure 11 shows that the embodiment of the utility model the tenth provides matching somebody with somebody for vibrator component and magnet in linear vibration motor
Put structural representation.
Embodiment
In description given below, for purposes of illustration, in order to provide comprehensive reason to one or more embodiment
Solution, elaborates many details.It may be evident, however, that these realities can also be realized in the case of these no details
Apply mode.In other examples, for the ease of describing one or more embodiment, known structure and equipment are with block diagram
Form show.
Used " mass " may also be referred to as " balancing weight " in the description of following embodiments, refer both to and magnetic
One of component that body or fitting coils vibrate in motor shell as vibrator component.In addition, the utility model is main
For the improvement for the linear vibration motor used in description, Y-direction vibrating motor may also be referred to as.But for the convenience of statement,
In following embodiment description, specifically illustrated by taking linear vibration motor as an example.
In order to illustrate more clearly of the utility model, with reference to preferred embodiment and accompanying drawing the utility model is done into
The explanation of one step.But it should be recognized that in order to make it easy to understand, be related in the utility model such as " upper surface ", " lower surface ",
" bottom ", " top " etc. describes, and is only the explanation for providing pattern referring to the drawings, it is not intended to limit, the general skill in this area
Art personnel are involved in text corresponding to retouch it is understood that when motor putting position changes in the utility model
Addressing word should be defined by its practical function played in motor.
The utility model provides a kind of linear vibration motor of new structure, first the vibrating motor to magnet structure and
The configuration mode of itself and coil is improved, and it is low to efficiently solve the magnetic line of force utilization ratio of current magnet, and existing line
Property vibrating motor be only applicable to vibrate experience under single-frequency point, be unsatisfactory for asking for the touch feedback application requirement of multifrequency point vibration
Topic.Secondly, linear vibration motor structure provided by the utility model, also carried out particular for the structure of vibrator component in motor
Improve, reduce motor making technology difficulty, improve overall efficiency of assembling.
Specifically, referring to shown in Fig. 1,2, a kind of linear vibration motor, the motor includes：Stator module, vibrator component
And elastic supporting member for supporting optical member 5；Wherein described stator module include with accommodating chamber housing 1, in the accommodating chamber and with institute
State housing 1 and combine fixed magnet 2, the magnet 2 includes hollow bulb 21, and the hollow bulb 21 prolongs along vibrator component direction of vibration
Stretch；In the shown embodiment, housing 1 described in the utility model includes the first housing 11 that bottom has opening, and combines
It is fixed on the second housing 12 of the opening；First housing 11 and the second housing 12 form the housing 1 with accommodating chamber.In addition
Magnet 2 described in the utility model can be segmentation or continuous cyclic structure, and the utility model is not any limitation as to this.
Vibrator component described in the utility model includes the coil 3 being arranged on magnetic conductive board 6 and is centered around the periphery of coil 3
Mass 4, during vibrator component vibration, the coil 3 vibrates with vibrator component and inserts the hollow bulb of the magnet 2
21；Specifically, the coil 3 and mass 4 be with reference to being fixed on the upper surface of the magnetic conductive board 6, and coil 3 and mass 4
Between formed with for magnet 2 insert gap 7.And magnetic conductive board 6 described in the utility model also includes and the inner chamber of coil 3
Through the through hole 61 of the upper surface of magnetic conductive board 6 and lower surface corresponding to 31.In the utility model, vibrator component is mainly by fixing
Coil 3 and mass 4 on magnetic conductive board 6 form, and because the through hole 61 of magnetic conductive board 6 can be integrally machined shaping by magnetic conductive board 6, lead to
The position in hole 61 and precision are easily controllable, and then using the structure design through the through hole 61 of magnetic conductive board 6, are on the one hand easy to line
On the other hand circle 3 can be also easy in further preferably being set up in coil inner chamber relative to the location and installation of the position of magnetic conductive board 6
Heart magnetic core so that center magnetic core directly can be held in place in the through hole of magnetic conductive board, and center magnetic core and coil after assembling and
Coaxial precision between magnetic conductive board is high, simplifies the assembling process of vibrator component, eliminates outside positioning tool.
Corresponding with magnetic conductive board 6, elastic supporting member for supporting optical member 5 described in the utility model is with reference to the following table for being fixed on the magnetic conductive board 6
Between the inner surface of face and the second housing 12, and it is configured to the vibrator component being suspended in the accommodating chamber of the housing 1.
It should be noted that the first housing 11 can be made up with the second housing 12 of the material with magnetic conductivity in the utility model, this
Sample is easy to the magnetic line of force of closed magnet, maximizes the magnetic action of magnet 2 and plays, to lift the electromagnetic actuation force of motor.Make
For a kind of specific embodiment of the utility model, the structure of housing 1 as shown in Figure 1 is in round structure, it is clear that the housing
It can be in the structure of noncircular cross section, such as can be cuboid-type, rounded cuboid type etc..In the utility model with the first housing
The magnet 2 that 11 roof inner surface combines fixed structure annular in shape is used as stator module, portion of the coil 3 as vibrator component
Point insert the hollow bulb 21 of the magnet 2 with vibrator component vibration, this kind as the structure annular in shape of stator magnet 2 and its with
As the configuration mode of the coil 3 of oscillator, compared with the column reality cored structure magnet used in existing vibrating motor, due to
The magnetic line of force of existing column reality core magnet is and the structure magnet in a ring of the present utility model from the outside radiological dispersal in axis
The magnetic line of force to assembling on axis, therefore be arranged on the magnetic residing for the coil position in a ring on structure magnet axis
Field intensity, which is higher than, to be set at the coil of column reality core magnet periphery；And the utility model coil is arranged at structure in a ring
The inner space of magnet, its diameter dimension can be done smaller, thus coil number of active coils can be significantly higher than be arranged at column reality
The number of active coils of the large-diameter coil of core magnet periphery, and then linear vibration motor provided by the utility model, maximizing
Using the magnetic of magnet, lifting coil improves the electromagnetic actuation force of motor, and drive for the utilization ratio of the magnet magnetic line of force
The increase of power causes the effective frequency range increase of motor, is easy to the application of double frequency or multifrequency resonant frequency, and meet under multifrequency point to horse
Up to the requirement of provided vibration sense, the tactile experience of motor is improved, and improves linear vibration motor combination property on the whole.
Further, linear vibration motor described in present embodiment also includes enabling coil 3 and external equipment electrical
Connect printed circuit board (PCB) 8；The printed circuit board (PCB) 8 includes：With reference to the lower surface for being fixed on the magnetic conductive board 6, and it is electric with coil 3
Property connection fixed part 81；Outside the housing 1, and combined with the upper surface of second housing 12 fixation be used for it is outer
The connecting portion 82 that portion's equipment is electrically connected with；And the fixed part 81 and the connecting portion 82 are connected into integrally-built flexibility even
Socket part 83.Wherein described flexible joint 83 is located at the lower section of the elastic arm of elastic supporting member for supporting optical member 5, when vibrator component is vibrated, elasticity
When arm compression or deformed in tension, flexible joint 83 moves up and down therewith, avoids between flexible joint 83 and elastic arm
Collide, the problem of influenceing vibrating motor vibration performance.And when elastic arm compressive deformation is to extreme position, second can be passed through
Damping piece set by housing upper surface it is spacing, to prevent elastic arm to be expressed to flexible joint, damage flexible joint.Ability
Field technique personnel on mass and/or magnetic conductive board in motor it is understood that should be provided with connection coil and printed circuit board (PCB)
Wire via, to realize that coil can be electrically connected with external equipment, but for the particular location and structural form of via, this
This is not restricted for utility model.
In addition, magnetic conductive board 6 is arranged on the lower section of magnet 2 in the utility model, therefore the stator module comprising magnet 2 is to shaking
There is a larger attraction in sub-component, the attraction can provide certain vibration resistance after motor power-off for vibrator component
Power, just it is comparable to provide a brake to vibrator component in simple terms, the vibrator component in motor can be made quickly to stop
Vibration, i.e., " shorten motor vibrations fall time ".Further, because coil inside can include center magnetic core, magnet magnetic is increased
The utilization rate of the line of force, therefore the electromagnetic actuation force of motor is increased, so as to accelerate the start-up course of motor, i.e., " shorten motor to shake
The dynamic rise time ".And then linear vibration motor provided by the utility model advantage compared with existing motor is, at motor
When vibration balancing position, vibrator component and stator module mutual attractive force are larger, can reduce motor no current or weak current shape
Microvibration under state, motor is set to quickly recover to inactive state.And linear vibration motor knot provided by the utility model
Structure, electromagnetic actuation force is big, can shorten the motor vibrations rise time；And due to motor, to be in the magnetostatic power in equilbrium position big, can enter
One step shortens motor vibrations fall time, therefore the utility model can improve motor response speed on the whole.
In order to further increase the effect that the magnetic line of force of the magnet 2 of structure annular in shape is assembled to axis, to increase coil 3
The magnetic field intensity of present position, increases the electromagnetic actuation force of motor, reference picture 3, for vibrator component and the configuration structure of magnet,
Fig. 3 shows that the utility model second embodiment provides the configuration structure of vibrator component and magnet in linear vibration motor and illustrated
Figure.Preferably, the vibrator component also includes the center magnetic core 9 being fixed to coaxial manner in the inner chamber 31 of coil 3, described
Center magnetic core 9 includes body 91, and the bottom of the body 91 is located in the through hole, and the lower surface of the body 91 is not
More than the lower surface of the magnetic conductive board 6, the bottom sidewall outer surface of the body 91 and corresponding through hole interior side-wall surface knot
Close and fix.In present embodiment, center magnetic core 9 can provide guide path and direction, and the center magnetic for the magnetic line of force of magnet 2
Core 9 can be selected the strong magnetic material of magnetic conduction ability, and permeability is high, is easy to be oriented to for the magnetic line of force, to coil at concentrate, and
In hot-wire coil, larger magnetic induction intensity can be produced, beneficial to the volume for reducing coil.Possessed by the second embodiment
It is same that other advantages and first embodiment provide the Dominant Facies of motor compared with the prior art, will not be repeated here.
Reference picture 4, the configuration structure of vibrator component and magnet for second embodiment shown in Fig. 3, as further
Improved 3rd embodiment, in present embodiment, the center magnetic core 9 also include from the wall outer surface of body 91 to
Flat part 92 extending outside and above the coil 3, the flat part 92 are structure as a whole with body 91.It is straight
Portion 92 can be used for providing guide path and direction for the magnetic line of force, be easy to the magnetic line of force to assemble at coil 3, to improve residing for coil 3
The magnetic field intensity of position.Further, the outer circumferential edge of the flat part 92 can be located at the outer circumferential side of the coil 3
The inner side of edge, outside flush setting.In the case where ensureing not interfere between flat part 92 and magnet 2, it is preferable that
The outer circumferential edge of the flat part 92 is located at the outside at the outer circumferential edge of the coil 3, and it is magnetic as far as possible to make it
The line of force provides guide effect.It is further to note that the outer side wall surface of body 91 and the interior side-wall surface of coil 3 it
Between, ensureing opposing insulation between center magnetic core 9 and coil 3 between the lower surface of flat part 92 and the dome top surface of coil 3
Under conditions of, gap can be left or the two fixes fitting.But the coaxial accurate dress between center magnetic core and coil for convenience
Match somebody with somebody, and the processing technology and assembly difficulty of center of reduction magnetic core, it is preferable that the outer side wall surface of body 91 and coil 3
Between interior side-wall surface, gap is left between the lower surface of flat part 92 and the dome top surface of coil 3.3rd embodiment
It is same that possessed other advantages and any of the above-described embodiment provide the Dominant Facies of motor compared with the prior art, no longer superfluous herein
State.
Reference picture 5, for the configuration structure of the vibrator component of the 3rd embodiment and magnet shown in Fig. 4, as further
Improved 4th embodiment, in present embodiment, the center magnetic core 9 also includes the dome top surface by the body 91
The upper end 93 extended outward along the axis direction of body 91, the body 91 and upper end 93 are structure as a whole.With it is upper
The center magnetic core structure provided in embodiment is stated to compare, in present embodiment, the upper end 93 of center magnetic core 9 can be used for be
The magnetic line of force provides guide path and direction, is easy to the magnetic line of force to assemble at coil, to improve the magnetic field intensity of coil present position.
Wherein according to the difference of magnetic conduction effect, the diameter of upper end 93 can be more than, it is straight less than or equal to the body 91
Selected according to the actual needs in the range of footpath.Other advantages possessed by 4th embodiment and any of the above-described implementation
It is same that mode provides the Dominant Facies of motor compared with the prior art, will not be repeated here.
Reference picture 6, the configuration structure of vibrator component and magnet for second embodiment shown in Fig. 3, as further
Improved 5th embodiment is strong in order to further increase the combination between center magnetic core 9 and magnetic conductive board 6 in present embodiment
Degree, the magnetic conductive board 6 also include being located at being extended by the through hole edge along the interior side-wall surface of coil 3 in the inner chamber of coil 3
The side of sidewall portion 62 gone out, the body 91 of the center magnetic core 9 are located in the cavity that the side of sidewall portion 62 is formed, and preferably,
The height of the side of sidewall portion 62 is equal to the height of the coil 3.Other advantages possessed by 5th embodiment and above-mentioned the
It is same that two embodiments provide the Dominant Facies of motor compared with the prior art, will not be repeated here.
Reference picture 7, for the configuration structure of the vibrator component of the 5th embodiment and magnet shown in Fig. 6, as further
Improved 6th embodiment, in present embodiment, the center magnetic core 9 also include from the wall outer surface of body 91 to
Flat part 92 extending outside and above the coil 3, the flat part 92 are structure as a whole with body 91.This
Other advantages possessed by six embodiments provide the advantage of motor configuration compared with the prior art with above-mentioned 5th embodiment
It is identical, it will not be repeated here.
Reference picture 8, for the configuration structure of the vibrator component of the 6th embodiment and magnet shown in Fig. 7, as further
Improved 7th embodiment, in present embodiment, the center magnetic core 9 also includes the dome top surface by the body 91
The upper end 93 extended outward along the axis direction of body 91, the body 91, flat part 92 and upper end 93 are integrated
Structure.Other advantages possessed by 7th embodiment and above-mentioned 6th embodiment provide motor configuration relative existing skill
The Dominant Facies of art are same, will not be repeated here.
Reference picture 9, for the configuration structure of the vibrator component of the 5th embodiment and magnet shown in Fig. 6, as further
Improved 8th embodiment, in present embodiment, the height of the side of sidewall portion 62 is less than the height of the coil 3, described
The outer side wall surface in body portion 91 includes the relief portion 911 for avoiding the side of sidewall portion 62, the relief portion 911 further comprise with
Rake 912 corresponding to the top of side of sidewall portion 62；Wherein described rake 912 can be to be adapted to the top of side of sidewall portion 62
Inclined-plane is set；It is further preferred that the top of side of sidewall portion 62 includes the intilted inclined-plane being adapted to rake 912
Portion.In the embodiment provided by the utility model, when the height of side of sidewall portion is less than coil height, side of sidewall portion and center magnetic
It is spacing the progress of the axially mounted position of center magnetic core can be directed to by the relief portion in center magnetic core between core, the structure is not only
The bond strength between center magnetic core and magnetic conductive board is added, is also convenient for center magnetic core relative to coil and magnetic conductive board in axial side
Upward location and installation.
Reference picture 10, for the configuration structure of the vibrator component of the 8th embodiment and magnet shown in Fig. 9, as further
Improved 9th embodiment, in present embodiment, the center magnetic core 9 also include from the wall outer surface of body 91 to
Flat part 92 extending outside and above the coil 3, the flat part 92 are structure as a whole with body 91.This
Other advantages possessed by nine embodiments provide the advantage of motor configuration compared with the prior art with above-mentioned 8th embodiment
It is identical, it will not be repeated here.
Reference picture 11, for the configuration structure of the vibrator component of the 9th embodiment and magnet shown in Figure 10, as entering one
Walk improved tenth embodiment, in present embodiment, the center magnetic core 9 also includes the top upper table by the body 91
The upper end 93 that face extends outward along the axis direction of body 91, the body 91, flat part 92 and upper end 93 are one
Body structure.It is relative existing that other advantages possessed by tenth embodiment with above-mentioned 9th embodiment provide motor configuration
The Dominant Facies of technology are same, will not be repeated here.
In summary, linear vibration motor structure provided by the utility model, maximizing utilize the magnetic of magnet, carried
Utilization ratio of the coil for the magnet magnetic line of force is risen, lifts the electromagnetic actuation force of motor.In addition the utility model also particular for
The structure of vibrator component is improved in motor, using the structure design through the magnetic conductive board through hole, is being easy to coil phase
For magnetic conduction Board position location and installation while, being also convenient for center magnetic core directly can be held in place in the through hole of magnetic conductive board,
And the center magnetic core after assembling and the coaxial precision between coil and magnetic conductive board are high, simplify the assembling process of vibrator component, save
Outside positioning tool is removed.
Obviously, above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to embodiment of the present utility model, for those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms, all embodiments can not be exhaustive here,
It is every to belong to obvious changes or variations that the technical solution of the utility model is extended out still in of the present utility model
The row of protection domain.
Claims (10)
1. a kind of linear vibration motor, it is characterised in that the motor includes：
Stator module, the stator module include with accommodating chamber housing, in the accommodating chamber and with the housing knot
Fixed magnet is closed, the magnet includes hollow bulb；
Vibrator component, the vibrator component include the coil and mass being arranged on magnetic conductive board；The hollow bulb is along oscillator group
Part direction of vibration extends, and when the vibrator component is vibrated, the coil vibrates with vibrator component and inserts the hollow of the magnet
Portion；
Elastic supporting member for supporting optical member, it is configured to the vibrator component being suspended in the accommodating chamber of the housing；
The magnetic conductive board also includes the through hole through the magnetic conductive board upper surface and lower surface corresponding with the coil inner chamber.
2. linear vibration motor according to claim 1, it is characterised in that
The vibrator component also includes the center magnetic core being located in the coil inner chamber, and the center magnetic core includes body, should
The bottom of body is located in the through hole, and the lower surface of the body is no more than the lower surface of the magnetic conductive board, described
The bottom sidewall outer surface of body combines with corresponding through hole interior side-wall surface and fixed.
3. linear vibration motor according to claim 2, it is characterised in that
The center magnetic core also includes：
Flat part outwardly being extended by the body portion sidewalls and above the coil.
4. linear vibration motor according to claim 3, it is characterised in that
The center magnetic core also includes：
The upper end extended outward by the dome top surface of the body along body axis direction.
5. according to the linear vibration motor described in any one of claim 2 to 4 claim, it is characterised in that
The magnetic conductive board also includes being located at by the through hole edge along coil interior side-wall surface being extended in the coil inner chamber
Side of sidewall portion, the body part of the center magnetic core is in the cavity that the side of sidewall portion is formed.
6. linear vibration motor according to claim 5, it is characterised in that the height of the side of sidewall portion is equal to the coil
Height.
7. linear vibration motor according to claim 5, it is characterised in that the height of the side of sidewall portion is less than the coil
Height.
8. linear vibration motor according to claim 7, it is characterised in that the outer side wall surface of the body includes
Avoid the relief portion of the side of sidewall portion.
9. linear vibration motor according to claim 8, it is characterised in that the relief portion further comprises and the side
Rake corresponding at the top of wall portion.
10. linear vibration motor according to claim 1, it is characterised in that
The coil and mass are with reference to the upper surface for being fixed on the magnetic conductive board, formed with confession between the coil and mass
The gap of magnet insertion；The elastic supporting member for supporting optical member is with reference to the lower surface for being fixed on the magnetic conductive board and the inner surface of shell bottom wall
Between, and be configured to the vibrator component being suspended in the accommodating chamber of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721008969.9U CN207069868U (en) | 2017-08-11 | 2017-08-11 | Linear vibration motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721008969.9U CN207069868U (en) | 2017-08-11 | 2017-08-11 | Linear vibration motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207069868U true CN207069868U (en) | 2018-03-02 |
Family
ID=61514818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201721008969.9U Active CN207069868U (en) | 2017-08-11 | 2017-08-11 | Linear vibration motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107257190A (en) * | 2017-08-11 | 2017-10-17 | 歌尔股份有限公司 | Linear vibration motor |
| CN107317454A (en) * | 2017-08-11 | 2017-11-03 | 歌尔股份有限公司 | Linear vibration motor |
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2017
- 2017-08-11 CN CN201721008969.9U patent/CN207069868U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107257190A (en) * | 2017-08-11 | 2017-10-17 | 歌尔股份有限公司 | Linear vibration motor |
| CN107317454A (en) * | 2017-08-11 | 2017-11-03 | 歌尔股份有限公司 | Linear vibration motor |
| WO2019029049A1 (en) * | 2017-08-11 | 2019-02-14 | 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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