CN107276361A - A kind of linear vibration motor - Google Patents
A kind of linear vibration motor Download PDFInfo
- Publication number
- CN107276361A CN107276361A CN201710687443.6A CN201710687443A CN107276361A CN 107276361 A CN107276361 A CN 107276361A CN 201710687443 A CN201710687443 A CN 201710687443A CN 107276361 A CN107276361 A CN 107276361A
- Authority
- CN
- China
- Prior art keywords
- magnetic conductive
- conductive board
- vibration motor
- linear vibration
- coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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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 present invention discloses a kind of linear vibration motor, and it includes stator module, and the stator module includes the housing with accommodating chamber, and the magnet of fixation is combined in the accommodating chamber and with the housing, and the magnet includes hollow bulb；Vibrator component, the vibrator component includes the coil being arranged on magnetic conductive board and the mass for being centered around the coil periphery, and the hollow bulb extends along vibrator component direction of vibration, and when vibrator component is vibrated, coil vibrates with vibrator component and inserts hollow bulb；Elastic supporting member for supporting optical member, one end secure bond of the elastic supporting member for supporting optical member is in the magnetic conductive board, and other end secure bond is in housing, and the elastic supporting member for supporting optical member is configured to the vibrator component being suspended in the accommodating chamber of the housing.Linear vibration motor provided by the present invention, maximizing utilizes the magnetic of magnet, lifts the utilization ratio of the coil magnet magnetic line of force, the electromagnetic actuation force of motor is improved, while being connected firmly between magnetic conductive board and mass and elastic supporting member for supporting optical member.
Description
Technical field
The present invention relates 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 motor
To do the feedback of system, such as the vibrational feedback of point touching screen.
Linear vibration motor generally includes vibrator component and stator module, and vibrator component includes mass, coil and shell fragment
Deng, stator module includes housing, magnet, FPCB etc., wherein, magnet and FPCB secure bonds are on housing, mass and coil
Secure bond, shell fragment is connected between mass and housing, and coil is located in the magnetic field range that magnet is produced.So, in coil
After energization, coil is subject to Ampere force effect, so that, vibrator component is also of reciprocating vibration by the driving progress of Ampere force, by
It is larger in the weight of mass, and then the effect that whole linear vibration motor vibrates can be obtained.
But there is the low defect of magnetic force line use ratio of magnet in above-mentioned existing linear vibration motor, make this kind of structure
Vibrating motor vibration force it is weaker, influence user overall touch feeling.
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
It is strong it is an object of the present invention to provide a kind of vibration force, and the linear oscillator that vibrator component is reliably connected with shell fragment
Motor.
According to an aspect of the invention, there is provided a kind of linear vibration motor, including：
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, one end secure bond of the elastic supporting member for supporting optical member in the magnetic conductive board, other end secure bond in
Housing, the elastic supporting member for supporting optical member is configured to the vibrator component being suspended in the accommodating chamber of the housing.
Preferably, the magnetic conductive board includes the horizontal lower end portion being fixedly connected with the lower surface of the coil and the matter
Horizontal extension and be integrally formed between the horizontal lower end portion and horizontal extension that the lower surface of gauge block is fixedly connected
Connecting portion, the lower surface of the horizontal extension is fixedly connected with the top surface of the elastic supporting member for supporting optical member.
Preferably, the magnetic conductive board also includes upwardly extending to be formed vertical positioned at the outer ledge of the horizontal extension
Extension, the vertical extension inserts the mass and is fixedly connected with mass.
Preferably, the magnetic conductive board includes the horizontal upper end portion being fixedly connected with the lower surface of the coil and the bullet
Horizontal extension that the top lower surface of property support member is fixedly connected and it is integrally formed in the horizontal upper end portion and level is prolonged
Connecting portion between extending portion, the bottom surface of the mass is fixedly connected with the top surface of elastic supporting member for supporting optical member.
Preferably, the magnetic conductive board is made up of magnetic material and is shaped as circular or polygon.
Preferably, the horizontal extension periphery of the magnetic conductive board has at least one fillet, and the magnetic conductive board is opened up at least
One notch.
Preferably, the magnetic conductive board is shaped as the circle that Central Symmetry offers three notches and three through holes.
Preferably, the magnetic conductive board is shaped as the circle that Central Symmetry offers two notches.
Preferably, the magnetic conductive board is shaped as the equilateral triangle that Central Symmetry offers three notches, the triangle
Three angles of shape are fillet.
Preferably, the magnetic conductive board is shaped as the square that Central Symmetry offers four notches, described square
Four angles are fillet.
Beneficial effects of the present invention are as follows：
Linear vibration motor provided by the present invention, can be most by improving magnet structure and its configuration mode with coil
Bigization is lifted the utilization ratio of the coil magnet magnetic line of force, is improved the electromagnetic actuation force of motor, driving force using the magnetic of magnet
Increase cause the increase of motor effective frequency range, be easy to the application of double frequency or multifrequency resonant frequency, meet under multifrequency point to motor institute
The requirement of vibration sense is provided, the tactile experience of motor is improved.The present invention linear vibration motor additionally provide a variety of magnetic conductive boards with
The connected mode of elastic supporting member for supporting optical member and mass, and various shapes magnetic conductive board so that linear vibration motor energy of the invention
Different process requirement is met, and can reach the firm connection between magnetic conductive board and elastic supporting member for supporting optical member and mass.
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 embodiments of the invention one provide the Standard figure of linear vibration motor.
Fig. 2 shows that embodiments of the invention one provide the structure sectional view of linear vibration motor.
Fig. 3 shows that embodiments of the invention one provide the partial structural diagram of linear vibration motor.
Fig. 4 shows that embodiments of the invention one provide the structural representation of magnetic conductive board.
Fig. 5 shows that embodiments of the invention one provide the partial structural diagram of linear vibration motor.
Fig. 6 shows that embodiments of the invention two provide the structural representation of the first magnetic conductive board.
Fig. 7 shows that embodiments of the invention two provide the structural representation of second of magnetic conductive board.
Fig. 8 shows that embodiments of the invention two provide the structural representation of the third magnetic conductive board.
Fig. 9 shows that embodiments of the invention three provide the partial structural diagram of linear vibration motor.
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.
In the first embodiment of the linear vibration motor of the present invention shown in Fig. 1 and Fig. 2, the linear vibration motor bag
Include stator module, vibrator component and elastic supporting member for supporting optical member.As shown in figure 1, stator module includes the housing 1 with accommodating chamber, it is located at
The magnet 2 of fixation is combined in the accommodating chamber and with the housing 1, the magnet 2 includes hollow bulb 21, the edge of hollow bulb 21
Vibrator component direction of vibration extends；Heretofore described magnet 2 can be segmentation or continuous cyclic structure, and the present invention is to this
It is not any limitation as.Vibrator component includes secure bond in the coil 3 on magnetic conductive board 5 and is centered around the peripheral matter of the coil 3
Gauge block 4；When the vibrator component is vibrated, the coil 3 vibrates with vibrator component and inserts the hollow bulb 21 of the magnet 2,
Magnet 2, coil 3 and the mass 4 of ring-type are set in coaxial fashion.Elastic supporting member for supporting optical member 5 is configured to hang the vibrator component
Put in the accommodating chamber of the housing 1.
Specifically, the housing 1, which includes bottom, has the first housing 11 of opening, and with reference to being fixed at the opening
The second housing 12；First housing 11 and the second housing 12 constitute the housing 1 with accommodating chamber.It should be noted that of the invention
In the first housing 11 be made with the second housing 12 by the material with magnetic conductivity, be so easy to the magnetic line of force of closed magnet, make
The magnetic action of magnet 2, which is maximized, to be played, to lift the electromagnetic actuation force of motor.Additionally as a kind of specific implementation of the invention
Mode, the housing 1 as shown in Figure 1 is in round structure, it is clear that the housing 1 also can be in the structure of noncircular cross section, this area
Technical staff can be selected according to actual performance requirement.
As depicted in figs. 1 and 2, in linear vibration motor of the invention, combined with the roof inner surface of the first housing 11
The magnet 2 of fixed structure annular in shape is as stator module, and coil 3 vibrates as the part of vibrator component with vibrator component to be inserted
The hollow bulb 21 of the magnet 2, this kind is matched somebody with somebody as the magnet 2 of the structure annular in shape of stator and its with coil 3 as oscillator
Mode is put, compared with the real cored structure magnet of the column used in existing vibrating motor, due to the real core magnet of existing column
The magnetic line of force be from the outside radiological dispersal in axis, and the present invention structure magnet in a ring the magnetic line of force be on axis gather
Collection, therefore the magnetic field intensity residing for the coil position being arranged on structure magnet axis in a ring is real higher than column is set in
At the coil of core magnet periphery；And coil of the present invention is arranged at the inner space of structure magnet in a ring, its diameter dimension
What can be done is smaller, therefore coil number of active coils can be significantly higher than having for the large-diameter coil that is arranged at the real core magnet periphery of column
The number of turns, and then linear vibration motor provided by the present invention are imitated, maximizing utilizes the magnetic of magnet, lifts coil magnet magnetic force
The utilization ratio of line, improves the electromagnetic actuation force of motor, and the increase of driving force causes the effective frequency range increase of motor, is easy to double
The application of frequency or multifrequency resonant frequency, and the requirement that vibration sense is provided motor under multifrequency point is met, improve the tactile of motor
Experience, and linear vibration motor combination property is improved on the whole.
As shown in Figures 2 and 3, the magnetic conductive board 5 in the present invention includes horizontal lower end portion 51, horizontal extension 52, Yi Jiyi
Inclination connecting portion 53 of the body formation between horizontal lower end portion 51 and horizontal extension 52.Coil 3 combines and is fixed on horizontal lower end
In portion 51, mass 4 combines the upper surface for being fixed on horizontal extension 52, the lower surface and elastic supporting member for supporting optical member of horizontal extension 52
6 top upper surface secure bond, and upper surface and the top upper surface flush of elastic supporting member for supporting optical member 6 in horizontal lower end portion.Coil 3
The gap inserted for magnet 2 is formed between mass 4.The other end of elastic supporting member for supporting optical member 6 combines and is fixed on the second housing 12
Inner surface on, and vibrator component is suspended in the accommodating chamber of housing 1.
Further, the linear vibration motor in present embodiment also includes enabling coil 3 with external equipment electrically to connect
The FPCB connect, the FPCB one end combine the lower surface in the horizontal lower end portion 51 for being fixed on magnetic conductive board 5, and electrically connect with coil 3
Connect, the other end is combined and is fixed on the second housing 12, and positioned at the outside of housing 1, for being electrically connected with external circuit.
Circular or polygon is made by magnetic material in being shaped as of magnetic conductive board 5, and at least one is offered thereon is used for coil
Notch or through hole that lead is connected with FPCB, horizontal extension 52 include at least one fillet.As shown in figure 4, the shape of magnetic conductive board 5
Shape is circle, and evenly spaced three notches 55 and three through holes 56 are offered thereon.
As shown in figure 5, further the outer ledge including horizontal extension 52 upwardly extends shape to the magnetic conductive board 5 of the present invention
Into vertical extension 54, in vertical extension 54 insertion mass 4, and fixation is combined with the madial wall of mass 4, enters one
Bonded area between step increase magnetic conductive board 5 and mass 4, increases the degree that is firmly combined with therebetween, and what raising was connected can
By property.
The top of elastic supporting plate 6 in the present embodiment can be annular or circular plate type, elastic supporting member for supporting optical member 6
Top when being circular plate type, the bottom surface in horizontal lower end portion 51 and the top surface secure bond of elastic supporting member for supporting optical member 6.
The embodiment of the present invention two as shown in figs 6-8, the shape of magnetic conductive board 5 is with the difference of embodiment one,
In the present embodiment, being shaped as magnetic conductive board 5 is plate, and coil 3 and mass 5 combine the upper surface for being fixed on magnetic conductive board 5, lead
The lower surface of magnetic sheet 5 is combined fixation with the top of elastic supporting member for supporting optical member 6.As shown in fig. 6, magnetic conductive board 5 is shaped as circle, thereon with
Central Symmetry mode offers two notches 55, and notch 55 is used to be connected with FPCB through coil lead.Magnetic conductive board as shown in Figure 7
5 are shaped as triangle, and three angles of the triangle are fillet, thereon offer three notches 55 in Central Symmetry mode.Such as
Magnetic conductive board 5 shown in Fig. 8 is shaped as square, and four angles of the square are fillet, are offered thereon in Central Symmetry mode
Four notches 55.Multiple notches 55 and/or through hole 56 are offered on magnetic conductive board 5, the connection of coil 3 and magnetic conductive board 5 can be simplified
Technique, reduces assembly difficulty.
In the embodiment of the present invention three as shown in Figure 9, the shape of magnetic conductive board 5 is with the difference of embodiment one.This
Magnetic conductive board 5 includes horizontal upper end portion 51 ', horizontal extension 52 ' and is integrally formed in horizontal upper end portion and level in embodiment
Inclination connecting portion 53 ' between extension, the upper surface in horizontal upper end portion 51 ' is combined fixation with the lower surface of coil 3, and level is prolonged
The upper surface of extending portion 52 ' is combined fixation, upper surface and the elasticity in horizontal upper end portion 51 ' with the top lower surface of elastic supporting member for supporting optical member 6
The dome top surface of support member 6 is flushed.Have between the magnetic conductive board 5 and elastic supporting member for supporting optical member 6 of the linear vibration motor of the present invention many
Assembled relation is planted, can be selected according to different process requirement so that can reach firm connection under different process requirement, reduce
Manufacture craft difficulty.
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 including：
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, one end secure bond of the elastic supporting member for supporting optical member in the magnetic conductive board, other end secure bond in housing,
The elastic supporting member for supporting optical member is configured to the vibrator component being suspended in the accommodating chamber of the housing.
2. linear vibration motor according to claim 1, it is characterised in that the magnetic conductive board include with the coil
Horizontal lower end portion that surface is fixedly connected, the horizontal extension and a bodily form being fixedly connected with the lower surface of the mass
Into the connecting portion between the horizontal lower end portion and horizontal extension, the lower surface of the horizontal extension is propped up with the elasticity
The top surface of support member is fixedly connected.
3. linear vibration motor according to claim 2, it is characterised in that the magnetic conductive board also includes being located at the level
The outer ledge of extension upwardly extends the vertical extension to be formed, and the vertical extension inserts the mass and and quality
Block is fixedly connected.
4. linear vibration motor according to claim 1, it is characterised in that the magnetic conductive board include with the coil
Horizontal upper end portion that surface is fixedly connected, the horizontal extension being fixedly connected with the top lower surface of the elastic supporting member for supporting optical member, with
And it is integrally formed in the connecting portion between the horizontal upper end portion and horizontal extension, the bottom surface of the mass and resilient support
The top surface of part is fixedly connected.
5. any linear vibration motor according to claim 1-4, it is characterised in that the magnetic conductive board is by magnetic material system
Into and be shaped as circular or polygon.
6. linear vibration motor according to claim 5, it is characterised in that the horizontal extension periphery tool of the magnetic conductive board
There is at least one fillet, the magnetic conductive board opens up at least one notch.
7. linear vibration motor according to claim 6, it is characterised in that the Central Symmetry that is shaped as of the magnetic conductive board is opened
Circle provided with three notches and three through holes.
8. linear vibration motor according to claim 6, it is characterised in that the Central Symmetry that is shaped as of the magnetic conductive board is opened
Circle provided with two notches.
9. linear vibration motor according to claim 6, it is characterised in that the Central Symmetry that is shaped as of the magnetic conductive board is opened
Equilateral triangle provided with three notches, three angles of the triangle are fillet.
10. linear vibration motor according to claim 6, it is characterised in that the magnetic conductive board is shaped as Central Symmetry
The square of four notches is offered, four square angles are fillet.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710687443.6A CN107276361A (en) | 2017-08-11 | 2017-08-11 | A kind of linear vibration motor |
| PCT/CN2017/112167 WO2019029050A1 (en) | 2017-08-11 | 2017-11-21 | Linear vibration motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710687443.6A CN107276361A (en) | 2017-08-11 | 2017-08-11 | A kind of linear vibration motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107276361A true CN107276361A (en) | 2017-10-20 |
Family
ID=60080088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710687443.6A Pending CN107276361A (en) | 2017-08-11 | 2017-08-11 | A kind of linear vibration motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107276361A (en) |
| WO (1) | WO2019029050A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019029047A1 (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 |
| WO2019029055A1 (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 |
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- 2017-08-11 CN CN201710687443.6A patent/CN107276361A/en active Pending
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| WO2019029050A1 (en) * | 2017-08-11 | 2019-02-14 | 歌尔股份有限公司 | Linear vibration motor |
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| WO2019029051A1 (en) * | 2017-08-11 | 2019-02-14 | 歌尔股份有限公司 | Linear vibration motor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019029050A1 (en) | 2019-02-14 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171020 |