CN107257190A - Linear vibration motor - Google Patents
Linear vibration motor Download PDFInfo
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- CN107257190A CN107257190A CN201710687111.8A CN201710687111A CN107257190A CN 107257190 A CN107257190 A CN 107257190A CN 201710687111 A CN201710687111 A CN 201710687111A CN 107257190 A CN107257190 A CN 107257190A
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- Prior art keywords
- coil
- vibrator component
- magnet
- magnetic
- linear vibration
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The invention discloses a kind of linear vibration motor, including：Stator module, stator module includes 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 includes the coil being arranged on magnetic conductive board and the mass for being centered around coil periphery；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, is configured to vibrator component being suspended in the accommodating chamber of housing；Magnetic conductive board also includes integrally bending the lug boss constituted by magnetic conductive board plate body, and the lug boss is inserted in coil.Vibrating motor structure maximizing provided by the present invention utilizes the magnetic of magnet, and lifting coil lifts the electromagnetic actuation force of motor for the utilization ratio of the magnet magnetic line of force, and assembling process is easy, and assembly precision is high so that motor can obtain more preferable vibration performance.
Description
Technical field
The invention 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, many 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 the vibrational feedback of point touching screen.
Linear vibration motor is the part that a kind of utilization electromagnetic force principle converts electrical energy into mechanical oscillation, 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 to be provided with stator module, oscillator in the housing with accommodating chamber, accommodating chamber
The elastic supporting member for supporting optical member that vibrator component is suspended in accommodating chamber by component and being configured to.Stator module can be to be fixedly connected with the casing
Magnet or coil, corresponding vibration component can be supported by elastic supporting member for supporting optical member the coil that carries out upper and lower vibration or
Person's magnet.The wherein existing magnet as stator module or vibrator component is the real cored structure of column, and coil is centered around magnetic
Body periphery, after coil electricity, coil is subject to Ampere force effect and produces electromagnetic force, and between the magnetic field produced by magnet
Interact, and then vibrator component is moved up and down, and then whole linear vibration motor can be obtained and vibrate
Effect.
But there is following defect 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 being assembled as vibration component, and two
Needed between person by outside positioning tool to ensure coaxial assembling, installation step is cumbersome, and be difficult to control to assemble precision.3rd, it is existing
Linear vibrating motor is only applicable under single-frequency point vibrate experience, and being unsatisfactory for will for the touch feedback application that multifrequency point is vibrated
Ask.
Accordingly, it is desirable to provide a kind of new linear vibration motor, to solve defect present in prior art.
The content of the invention
In view of the above problems, the technical problem to be solved in the present invention is to provide a kind of linear vibration motor, the vibrating motor
Structure maximizing utilizes the magnetic of magnet, and lifting coil is for the utilization ratio of the magnet magnetic line of force, the electromagnetism drive of lifting motor
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 present invention uses following technical proposals：
A kind of linear vibration motor, the motor includes：
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 includes the coil being arranged on magnetic conductive board and the matter for being centered around the coil periphery
Gauge block；The hollow bulb extends along vibrator component direction of vibration, and during the vibrator component vibration, the coil shakes with vibrator component
Move and insert the hollow bulb of the magnet；
Elastic supporting member for supporting optical member, is configured to the vibrator component being suspended in the accommodating chamber of the housing；
The magnetic conductive board also includes integrally bending the lug boss constituted by the magnetic conductive board plate body, and the lug boss is inserted in institute
State in coil.
Further, it is preferable to which scheme is, the lug boss includes side wall, the roof positioned at the side wall top, and is located at
The opening of the lug boss bottom；The side wall and roof enclose the inner chamber received and to form the lug boss jointly.
Further, it is preferable to scheme is, the vibrator component is also included with reference to being fixed on the lug boss roof upper surface
And the conductive magnetic yoke extended to above the coil.
Further, it is preferable to which scheme is, the conductive magnetic yoke includes body, and the body is in be vibrated with the vibrator component
The perpendicular direction in direction is set, and internal diameter of the external diameter more than the coil of the body.
Further, it is preferable to which scheme is, the conductive magnetic yoke also includes corresponding with the lug boss roof by body top
Portion upper surface caves inward the welding groove to be formed.
Further, it is preferable to which scheme is, the conductive magnetic yoke also includes being shaken along vibrator component by the body dome top surface
The upper end that dynamic direction is extended outward.
Further, it is preferable to which scheme is, the vibrator component also includes insertion and with reference to the inner chamber for being fixed on the lug boss
In center magnetic core.
Further, it is preferable to which scheme is, have between the dome top surface of the conductive magnetic yoke and the inner surface of housing top wall
The oscillation space vibrated for vibrator component.
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
The gap inserted for magnet is formed 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.
Further, it is preferable to which scheme is, the linear vibration motor also includes enabling coil to be electrically connected with external equipment
Printed circuit board (PCB)；The printed circuit board (PCB) includes：With reference to fixation that is being fixed on the magnetic conductive board and being electrically connected with coil
Portion；The connecting portion for being used to be electrically connected with external equipment outside the housing；And by the fixed part and the connecting portion
Connect into integrally-built flexible joint.
Beneficial effects of the present invention are as follows：
1st, linear vibration motor provided by the present invention, can by improving magnet structure and its configuration mode with coil
The magnetic of magnet is maximally utilized, lifting coil improves the electromagnetic actuation force of motor for the utilization ratio of the magnet magnetic line of force,
The increase of driving force causes the effective frequency range increase of motor, is easy to the application of double frequency or multifrequency resonant frequency, meets right under multifrequency point
Motor provides the requirement of vibration sense, improves the tactile experience of motor.
2nd, linear vibration motor structure provided by the present invention, reduces motor making technology difficulty, improves overall dress
With efficiency.Coil and mass on magnetic conductive board are particularly fixed in motor as the vibrator component of motor, due to magnetic conductive board
It can be integrally formed by processing, its precision is easily controllable, and then can improve oscillator using the structure setting of the magnetic conductive board lug boss
The overall assembly precision of component, simplifies the assembling process of vibrator component, eliminates outside positioning tool.And magnetic conductive board is raised
The more preferable center magnetic core of magnetic property can be also set up in the inner chamber in portion according to actual conditions, is more favorable for further lifting coil
For the utilization ratio of the magnet magnetic line of force.
3rd, in linear vibration motor structure provided by the present invention, the first housing, the second housing have magnetic conductivity, center magnetic
Core is made up of magnetic conductive material, and the magnetic line of force of closed magnet, maximizes the magnetic action of magnet while certralizing ability is played
Play, be easy to be lifted the electromagnetic actuation force of motor, so as to improve the tactile experience of motor.
4th, linear vibration motor provided by the present invention, motor vibrations equilbrium position, vibrator component is mutual with stator module
Attraction is larger, reduces the microvibration under motor no current or light current stream mode, motor is quickly recovered to static shape
State.
5th, linear vibration motor structure provided by the present invention, electromagnetic actuation force is big, shortens the motor vibrations rise time；Horse
It is big up to the magnetostatic power in equilbrium position, shorten motor vibrations fall time；It is integrally improved motor response speed.
Brief description of the drawings
The embodiment to the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows that first embodiment of the invention provides the structure sectional view of linear vibration motor.
Fig. 2 shows that first embodiment of the invention provides the configuration structure of vibrator component and magnet in linear vibration motor
Schematic diagram.
Fig. 3 shows that second embodiment of the invention provides the configuration structure of vibrator component and magnet in linear vibration motor
Schematic diagram.
Fig. 4 shows that third embodiment of the invention provides the configuration structure of vibrator component and magnet in linear vibration motor
Schematic diagram.
Fig. 5 shows that four embodiment of the invention provides the configuration structure of vibrator component and magnet in linear vibration motor
Schematic diagram.
Fig. 6 shows that fifth embodiment of the invention provides the configuration structure of vibrator component and magnet in linear vibration motor
Schematic diagram.
Fig. 7 shows that sixth embodiment of the invention provides the configuration structure of vibrator component and magnet in linear vibration motor
Schematic diagram.
Fig. 8 shows that seventh embodiment of the invention provides the configuration structure of vibrator component and magnet in linear vibration motor
Schematic diagram.
Fig. 9 shows that eighth embodiment of the invention provides the configuration structure of vibrator component and magnet in linear vibration motor
Schematic diagram.
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, present invention is mainly used for
The improvement for the linear vibration motor used in description, may also be referred to as Y-direction vibrating motor.But for the convenience of statement, with
Under embodiment description in, specifically illustrated by taking linear vibration motor as an example.
In order to illustrate more clearly of the present invention, the present invention is done further with reference to preferred embodiment and accompanying drawing
It is bright.But it should be recognized that in order to make it easy to understand, be related in the present invention such as " upper surface ", " lower surface ", " bottom ", " top
Portion " etc. is described, and is only to provide the explanation of pattern referring to the drawings, it is not intended to limit, and persons skilled in the art can be with
Understand, when motor putting position changes in the present invention, involved corresponding description and word should be with text
Its practical function played in motor is defined.
The invention provides a kind of linear vibration motor of new structure, first the vibrating motor to magnet structure and its with
The configuration mode of coil is improved, and the magnetic line of force utilization ratio for efficiently solving current magnet is low, and existing is linearly shaken
Dynamic motor is only applicable under single-frequency point vibrate experience, the problem of being unsatisfactory for the touch feedback application requirement for multifrequency point vibration.
Secondly, linear vibration motor structure provided by the present invention, the also structure particular for vibrator component in motor are improved,
Motor making technology difficulty is reduced, overall efficiency of assembling is improved.
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 illustrated embodiment, housing 1 of the present invention includes the first housing 11 that bottom has opening, and combination is fixed on
The second housing 12 at the opening；First housing 11 and the second housing 12 constitute the housing 1 with accommodating chamber.It is of the invention in addition
Described in magnet 2 can for segmentation or continuous cyclic structure, the present invention not be any limitation as to this.
The vibrator component include the coil 3 that is arranged on magnetic conductive board 6 and be centered around the coil 3 it is peripheral and and coil
Mass 4 is coaxially disposed, when vibrator component is vibrated, the coil 3 vibrates with vibrator component and inserts the hollow bulb of the magnet 2
21；In schematic structure, the coil 3 and mass 4 are with reference to being fixed on the upper surface of the magnetic conductive board 6, and coil 3 and matter
The gap 7 inserted for magnet 2 is formed between gauge block 4；And heretofore described magnetic conductive board 6 also includes by the magnetic conductive board 6
The plate body lug boss 61 that integrally bending is constituted, the lug boss 61 is inserted in the coil 3.Preferably, the lug boss 61 is wrapped
Include side wall 611, the roof 612 positioned at the top of side wall 611, and the opening 613 positioned at the bottom of lug boss 61；It is described
Side wall 611 and roof 612 enclose the inner chamber 614 received and to form the lug boss 61 jointly.In the present invention, vibrator component is mainly by fixing
Coil 3 and mass 4 on magnetic conductive board 6 are constituted, because the lug boss 61 of magnetic conductive board 6 can integrally be added by the bending of magnetic conductive board 6
Work is molded, and the precision of its present position is easily controllable, and then is set using the structure of the lug boss 61 on magnetic conductive board in the present invention 6
Put, can directly be set on lug boss 61 and combine in vibrator component assembling process coil 3 and fix, therebetween fixing intensity
Height, and be easy to improve the overall coaxial assembly precision between vibrator component coil 3 and magnetic conductive board 6, facilitate mass 4
Follow-up assembling, it is to avoid vibrator component is polarized in vibration processes, is simplified the assembling process of vibrator component, is eliminated outer
Portion's positioning tool.In addition, the lug boss 61 on magnetic conductive board 6 can also be guided to the magnetic line of force of the magnet 2 of structure annular in shape, with
Increase the magnetic field intensity of the present position of coil 3, increase the electromagnetic actuation force of motor.
It is corresponding with magnetic conductive board 6, elastic supporting member for supporting optical member 5 of the present invention with reference to be fixed on the lower surface of the magnetic conductive board 6 with
Between the inner surface of second housing 12, and it is configured to the vibrator component being suspended in the accommodating chamber of the housing 1.Need
Illustrate, the first housing 11 can be made up with the second housing 12 of the material with magnetic conductivity in the present invention, so be easy to close
The magnetic line of force of magnet is closed, the magnetic action of magnet 2 is maximized and plays, to lift the electromagnetic actuation force of motor.It is used as the present invention
A kind of specific embodiment, the structure of housing 1 as shown in Figure 1 is in round structure, it is clear that the housing also can be in non-circular section
The structure in face, such as can be cuboid-type, fillet cuboid-type.
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
Arm is pressurized or during deformed in tension, flexible joint 83 moves up and down therewith, it is to avoid 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 are it is understood that should be provided with connection coil and printed circuit board (PCB) on mass and/or magnetic conductive board in motor
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 invention.
The magnet 2 of structure annular in shape of fixation is combined in the present invention with the roof inner surface of the first housing 11 as stator
Component, coil 3 vibrates the hollow bulb 21 for inserting the magnet 2 as the part of vibrator component with vibrator component, and this kind of conduct is determined
The magnet 2 of the structure annular in shape of son and its configuration mode with the coil 3 as oscillator, used in existing vibrating motor
The real cored structure magnet of column compare, due to the magnetic line of force of the real core magnet of existing column be from the outside radiological dispersal in axis,
And the magnetic line of force of the structure magnet in a ring of the present invention is to assembling on axis, therefore it is arranged in structure magnet in a ring
The magnetic field intensity residing for coil position on axis, which is higher than, to be set at the coil of the real core magnet periphery of column；And in the present invention
Coil is arranged at the inner space of structure magnet in a ring, and it is smaller that its diameter dimension can be done, therefore coil number of active coils meeting
It is significantly higher than the number of active coils for the large-diameter coil for being arranged at the real core magnet periphery of column.
In addition, magnetic conductive board 6 is arranged on the lower section of magnet 2 in the present invention, therefore the stator module comprising magnet 2 is to oscillator group
There is a larger attraction in part, the attraction can provide certain vibration resistance after motor power-off for vibrator component,
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 shaking
It is dynamic, i.e., " shorten motor vibrations fall time ".Further, when the inside of coil 3 includes center magnetic core 100, magnet 2 is increased
The utilization rate of the magnetic 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
Vibrate the rise time ".Linear vibration motor provided by the present invention advantage compared with existing motor is, when motor is in vibration
During equilbrium position, vibrator component and stator module mutual attractive force are larger, it is possible to decrease under motor no current or light current stream mode
Microvibration, makes motor to quickly recover to inactive state.And linear vibration motor structure provided by the present invention, electromagnetic drive
Power is big, can shorten the motor vibrations rise time；And because motor is in the magnetostatic power in equilbrium position greatly, it can further shorten motor
Fall time is vibrated, therefore the present invention can improve motor response speed on the whole.To sum up, linear oscillator provided by the present invention
Motor, maximizing utilizes the magnetic of magnet, and lifting coil improves the electromagnetism of motor for the utilization ratio of the magnet magnetic line of force
Driving force, and the increase of driving force causes the effective frequency range increase of motor, is easy to the application of double frequency or multifrequency resonant frequency, and meet
The requirement of vibration sense is provided motor under multifrequency point, the tactile experience of motor is improved, and improves linear oscillator on the whole
Motor combination property.
Reference picture 3, for vibrator component and the configuration structure of magnet, Fig. 3 shows that second embodiment of the invention is provided
The configuration structure schematic diagram of vibrator component and magnet in linear vibration motor.Wherein, the vibrator component also includes combining fixing
The upper surface of 61 roof of lug boss 612 and extend to the conductive magnetic yoke 9 of the top of the coil 3, the conductive magnetic yoke 9 includes this
Body portion 91, the body 91 is in be set with the perpendicular direction of the vibrator component direction of vibration, and the external diameter of body 91
More than the internal diameter of the coil 3；Further, the inner side table of the dome top surface of the conductive magnetic yoke 9 and the roof of the first housing 11
There is the oscillation space vibrated for vibrator component between face.Similar, this reality that provides vibrator component structure with first embodiment
Apply in mode, conductive magnetic yoke 9 can provide guide path and direction for the magnet magnetic line of force, can further increase the magnet of structure annular in shape
The effect that 2 magnetic line of force is assembled to axis, to increase the magnetic field intensity of the present position of coil 3, increases the electromagnetic drive of motor
Power.Further, the outer circumferential edge of the conductive magnetic yoke 9 can be located at inner side, the outside at the outer circumferential edge of the coil 3
Or flush setting.In the case of not interfered between the outer circumferential edge and magnet 2 that ensure conductive magnetic yoke 9, it is preferable that
The outer circumferential edge of the conductive magnetic yoke 9 is located at the outside at the outer circumferential edge of the coil 3, and it is magnetic force as far as possible to make it
Line provides guide effect.
In addition, ensureing between conductive magnetic yoke 9 and coil 3 under conditions of opposing insulation, conductive magnetic yoke 9 and coil 3 for convenience
Between coaxial accurate assembly, and simplify conductive magnetic yoke 9 assembling fix difficulty, it is preferable that the lower surface and line of the conductive magnetic yoke 9
Gap is left between the dome top surface of circle 3.Other advantages that the embodiment has provide horse with first embodiment
It is same up to Dominant Facies compared with the prior art, it will not be repeated here.
Reference picture 4, for vibrator component shown in Fig. 3 and the configuration structure of magnet, implements as the further improved 3rd
Mode, the combination for the ease of conductive magnetic yoke 9 and the upper surface of 6 lug boss of magnetic conductive board, 61 roof 612 is fixed, and is increased therebetween
Fixing intensity, improves the stability and reliability of motor vibrator component, the conductive magnetic yoke 9 and the roof 612 of 6 lug boss of magnetic conductive board 61
It can be connected between upper surface by the way of laser welding, it is preferable that the conductive magnetic yoke 9 also includes and the lug boss
The corresponding welding groove 92 formed that caved inward by the dome top surface of 9 body of conductive magnetic yoke 91 of 61 roof 612.Welding groove 92 is set
Put can be to being thinned in conductive magnetic yoke 9 with the corresponding position of 61 roof of lug boss 612, convenient laser welding therebetween.Should
Other advantages that 3rd embodiment has provide the Dominant Facies of motor compared with the prior art with any of the above-described embodiment
Together, it will not be repeated here.
Reference picture 5, for vibrator component shown in Fig. 3 and the configuration structure of magnet, implements as the further improved 4th
In mode, present embodiment, the conductive magnetic yoke 9 also includes by the dome top surface of body 91 along vibrator component direction of vibration
The upper end 93 extended outward, the body 91 and upper end 93 are structure as a whole.There is provided and lead with second embodiment
Magnetic yoke structure is similar, in present embodiment, and upper end 93 can be used for providing guide path and direction for the magnetic line of force, be easy to the magnetic line of force
Assemble at coil, to improve the magnetic field intensity of coil present position.Wherein according to the difference of magnetic conduction effect, the upper end 93
Diameter can according to the actual needs be selected being more than, in the range of the diameter less than or equal to the lug boss 61.Should
Other advantages that 4th embodiment has provide the Dominant Facies of motor compared with the prior art with any of the above-described embodiment
Together, it will not be repeated here.
Reference picture 6, the vibrator component and the configuration structure of magnet provided for first embodiment shown in Fig. 1,2 is made
For further improved 5th embodiment, in present embodiment, it is preferable that the vibrator component also includes inserting and combine solid
It is scheduled on the center magnetic core 100 in the inner chamber 614 of the lug boss 61.Center magnetic core 100 can select magnetic property more good material system
Into it can further increase the magnetic conduction effect inside coil 3, and lifting coil 3 lifts horse for the utilization ratio of the magnet magnetic line of force
The electromagnetic actuation force reached, to realize the goal of the invention of the present invention.
Reference picture 7, the vibrator component and the configuration structure of magnet provided for second embodiment shown in Fig. 3, as
In further improved 6th embodiment, present embodiment, it is preferable that the vibrator component also includes inserting and combining fixing
Center magnetic core 100 in the inner chamber 614 of the lug boss 61.The functions and effects of the center magnetic core 100 and the above-mentioned 5th
The functions and effects of center magnetic core described in embodiment are identical, will not be repeated here.
In addition, reference picture 8, the vibrator component and the configuration structure of magnet provided for the 3rd embodiment shown in Fig. 4,
As further improved 7th embodiment, in present embodiment, similarly preferably, the vibrator component also includes insertion
And with reference to the center magnetic core 100 being fixed in the inner chamber 614 of the lug boss 61.
In addition, reference picture 9, the vibrator component and the configuration structure of magnet provided for the 4th embodiment shown in Fig. 5,
As further improved 8th embodiment, in present embodiment, similarly preferably, the vibrator component also includes insertion
And with reference to the center magnetic core 100 being fixed in the inner chamber 614 of the lug boss 61.
The functions and effects of center magnetic core 100 described in 7th embodiment and the 8th embodiment are implemented with the above-mentioned 5th
The functions and effects of center magnetic core 100 described in mode or the 6th embodiment are identical, will not be repeated here.
In summary, linear vibration motor structure provided by the present invention, maximizing utilizes the magnetic of magnet, increase line
The utilization ratio for the magnet magnetic line of force is enclosed, the electromagnetic actuation force of motor is lifted, the present invention in motor also particular for shaking in addition
The structure of sub-component is improved, and is reduced motor making technology difficulty, is improved overall efficiency of assembling, can also be according to reality
Situation sets up the more preferable center magnetic core of magnetic property, is more favorable for further lifting coil and utilizes effect for the magnet magnetic line of force
Rate.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention, for those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms, all embodiments can not be exhaustive here, it is every to belong to this hair
Row of the obvious changes or variations that bright technical scheme is extended out still in protection scope of the present invention.
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 includes the coil being arranged on magnetic conductive board and the quality for being centered around the coil periphery
Block；The hollow bulb extends along vibrator component direction of vibration, and during the vibrator component vibration, the coil vibrates with vibrator component
And insert the hollow bulb of the magnet；
Elastic supporting member for supporting optical member, is configured to the vibrator component being suspended in the accommodating chamber of the housing；
The magnetic conductive board also includes integrally bending the lug boss constituted by the magnetic conductive board plate body, and the lug boss is inserted in the line
In circle.
2. linear vibration motor according to claim 1, it is characterised in that the lug boss includes side wall, positioned at described
The roof on side wall top, and the opening positioned at the lug boss bottom；The side wall and roof enclose jointly to be received to form described convex
The inner chamber in the portion of rising.
3. linear vibration motor according to claim 2, it is characterised in that the vibrator component also includes combining being fixed on
The lug boss roof upper surface and the conductive magnetic yoke that extends to above the coil.
4. linear vibration motor according to claim 3, it is characterised in that the conductive magnetic yoke includes body, described
Body portion is in be set with the perpendicular direction of the vibrator component direction of vibration, and the external diameter of the body is more than the interior of the coil
Footpath.
5. linear vibration motor according to claim 4, it is characterised in that the conductive magnetic yoke also includes and the projection
The corresponding welding groove formed that caved inward by body dome top surface of portion's roof.
6. linear vibration motor according to claim 4, it is characterised in that the conductive magnetic yoke also includes by the body
The upper end that dome top surface is extended outward along vibrator component direction of vibration.
7. the linear vibration motor according to claim 2 to 6 any one claim, it is characterised in that the oscillator
Component also includes insertion and with reference to the center magnetic core being fixed in the inner chamber of the lug boss.
8. linear vibration motor according to claim 3, it is characterised in that the dome top surface and housing of the conductive magnetic yoke
There is the oscillation space vibrated for vibrator component between the inner surface of roof.
9. linear vibration motor according to claim 1, it is characterised in that the coil and mass combine and be fixed on institute
The upper surface of magnetic conductive board is stated, the gap inserted for magnet is formed between the coil and mass；The elastic supporting member for supporting optical member knot
Conjunction is fixed between the lower surface of the magnetic conductive board and the inner surface of shell bottom wall, and is configured to suspend the vibrator component
In the accommodating chamber of the housing.
10. linear vibration motor according to claim 1, it is characterised in that the linear vibration motor also includes making line
Circle can be electrically connected with printed circuit board (PCB) with external equipment；The printed circuit board (PCB) includes：With reference to being fixed on the magnetic conductive board
And with coil be electrically connected with fixed part；The connecting portion for being used to be electrically connected with external equipment outside the housing；And
The fixed part and the connecting portion are connected into integrally-built flexible joint.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710687111.8A CN107257190B (en) | 2017-08-11 | 2017-08-11 | Linear vibration motor |
| PCT/CN2017/112165 WO2019029048A1 (en) | 2017-08-11 | 2017-11-21 | Linear vibration motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710687111.8A CN107257190B (en) | 2017-08-11 | 2017-08-11 | Linear vibration motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107257190A true CN107257190A (en) | 2017-10-17 |
| CN107257190B CN107257190B (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710687111.8A Active CN107257190B (en) | 2017-08-11 | 2017-08-11 | Linear vibration motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107257190B (en) |
| WO (1) | WO2019029048A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019029055A1 (en) * | 2017-08-11 | 2019-02-14 | 歌尔股份有限公司 | Linear vibration motor |
| WO2019029047A1 (en) * | 2017-08-11 | 2019-02-14 | 歌尔股份有限公司 | Linear vibration motor |
| WO2019029048A1 (en) * | 2017-08-11 | 2019-02-14 | 歌尔股份有限公司 | Linear vibration motor |
| WO2019029050A1 (en) * | 2017-08-11 | 2019-02-14 | 歌尔股份有限公司 | Linear vibration motor |
| WO2019029051A1 (en) * | 2017-08-11 | 2019-02-14 | 歌尔股份有限公司 | Linear vibration motor |
| WO2020135289A1 (en) * | 2018-12-24 | 2020-07-02 | 歌尔股份有限公司 | Screen vibration sound production apparatus and electronic product |
| CN115002249A (en) * | 2021-10-30 | 2022-09-02 | 荣耀终端有限公司 | Vibrating motor and terminal equipment |
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| Publication number | Publication date |
|---|---|
| WO2019029048A1 (en) | 2019-02-14 |
| CN107257190B (en) | 2020-06-02 |
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