CN105406679B - A kind of linear vibration motor - Google Patents
A kind of linear vibration motor Download PDFInfo
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- CN105406679B CN105406679B CN201510867182.7A CN201510867182A CN105406679B CN 105406679 B CN105406679 B CN 105406679B CN 201510867182 A CN201510867182 A CN 201510867182A CN 105406679 B CN105406679 B CN 105406679B
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- iron core
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- motor shell
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Abstract
The present invention relates to technical field of electronic products, a kind of linear vibration motor is provided, including motor shell and the wiring board being fixed on inside motor shell, suspension has vibrating mass inside motor shell, vibrating mass includes iron core, iron core is nested in coil inner cavity, coil is installed in the circuit board, iron core both ends are separately installed with mass block, the other end of mass block is fixed on the inner wall of motor shell by elastic supporting member for supporting optical member, the periphery of mass block is equipped with the guide rail magnet being fixed on motor shell inside, realize the system vibration feedback effect to electronic product, simultaneously, iron core magnetizes when coil is powered, magneticaction is generated with guide rail magnet, biggish driving force is provided, meet the requirement of the vibrational feedback experience of user.
Description
Technical field
The invention belongs to technical field of electronic products more particularly to a kind of linear vibration motors.
Background technique
Currently, portable consumer electronics product rapidly develops, consumer increasingly favors more lightening and has more preferably
The electronic product of tactile experience.Motor is typically used as the executing agency of tactile experience, plays the role of system vibration feedback.Electronics
The more preferably lightening developing direction of product determines that elastic supporting member for supporting optical member must also be improved to gauge flat direction.Most of horse
Up to realizing whole vibration by elastic supporting member for supporting optical member, relatively common in elastic supporting member for supporting optical member is shape using spring or elastic slice
Formula, should in the form of spring or elastic slice existing for elastic supporting member for supporting optical member be mainly based upon the space inside motor to design.
In current motor configuration, the setting position of magnet and coil are as follows: magnet is located at the top of coil, logical in coil
After electricity, the driving force that the magnet by magnetic field versus in top generates is relatively small, is unsatisfactory for the experience of user.
Summary of the invention
The purpose of the present invention is to provide a kind of linear vibration motors, it is intended to solve magnet in the prior art and be located at coil
Top, after coil energization, the driving force that the magnet by magnetic field versus in top generates is relatively small, is unsatisfactory for user's
The problem of experience.
The invention is realized in this way a kind of linear vibration motor, including motor shell and it is fixed on the motor shell
Internal wiring board, motor shell inside suspension have vibrating mass, and the vibrating mass includes iron core, and the iron core is nested online
It encloses in inner cavity, the coil is mounted on the wiring board, and the iron core both ends are separately installed with mass block, the mass block vibration
The other end in dynamic direction is fixed on the inner wall of the motor shell by elastic supporting member for supporting optical member, and the periphery of the mass block is equipped with solid
The guide rail magnet being scheduled on the motor shell inside.
As an improvement scheme, the elastic supporting member for supporting optical member be U-shaped elastic slice, a side of the U-shaped elastic slice is fixed
On the mass block, the other end is fixed on the inner wall of the motor shell.
As an improvement scheme, the quantity of the iron core and coil is several.
As an improvement scheme, the iron core include the first iron core and the second iron core, accordingly, the coil includes
The first coil being nested on first iron core and the second coil being nested on second iron core, the first coil and
Second coil is separately mounted on the wiring board.
As an improvement scheme, described mass block one end connect with first iron core and the second iron core respectively, separately
One end connects the elastic supporting member for supporting optical member.
As an improvement scheme, the elastic supporting member for supporting optical member includes spring and fixing axle, wherein mass block connection
One end of the elastic supporting member for supporting optical member is provided with the protrusion with mounting hole, and the spring one end covers in the protrusion, the other end
It is fixed on the inner wall of the motor shell, for the fixed hub in the spring, one end is fixed on the motor shell
On inner wall, the other end is installed in the mounting hole.
As an improvement scheme, be respectively equipped with mounting groove, the mounting groove on opposite two sides on the mass block
Inside it is separately installed with balanceable magnet.
As an improvement scheme, the guide rail magnet is several blocky magnet.
As an improvement scheme, the guide rail magnet is the annular magnet being sleeved on the mass block.
Since linear vibration motor includes motor shell and the wiring board that is fixed on inside motor shell, inside motor shell
Suspension has vibrating mass, and vibrating mass includes iron core, and iron core is nested in coil inner cavity, and coil is installed in the circuit board, iron core both ends
It is separately installed with mass block, the other end of mass block direction of vibration is fixed on the inner wall of motor shell by elastic supporting member for supporting optical member,
The periphery of mass block is equipped with the guide rail magnet being fixed on motor shell inner wall, realizes to feed back the system vibration of electronic product and make
With, meanwhile, iron core magnetizes when coil is powered, and generates magneticaction with guide rail magnet, provides biggish driving force, meet user
Vibrational feedback experience requirement.
Detailed description of the invention
Fig. 1 is the configuration schematic diagram for the linear vibration motor that the embodiment of the present invention one provides；
Fig. 2 is the schematic top plan view for the linear vibration motor that the embodiment of the present invention one provides；
Fig. 3 is that the magnetic force of linear vibration motor provided by the invention generates status diagram；
Fig. 4 is the configuration schematic diagram of linear vibration motor provided by Embodiment 2 of the present invention；
Fig. 5 is the schematic top plan view of linear vibration motor provided by Embodiment 2 of the present invention；
Wherein, 1- motor shell, 2- wiring board, 3- vibrating mass, 4- iron core, 5- coil, 6- mass block, 7- guide rail magnet,
8-U type elastic slice, the first iron core of 9-, the second iron core of 10-, 11- first coil, the second coil of 12-, 13- spring, 14- fixing axle,
15- protrusion, 16- mounting groove, 17- balanceable magnet, 18- upper cover, 19- lower plate.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 show the embodiment of the present invention one offer structural schematic diagram, only give for ease of description, in figure with
The relevant part of the present invention.
As shown in connection with fig. 2, linear vibration motor includes motor shell 1 and the wiring board 2 that is fixed on inside motor shell 1,
Suspension has vibrating mass 3 inside motor shell 1, and vibrating mass 3 includes iron core 4, and iron core 4 is nested in 5 inner cavity of coil, and coil 5 is installed
In assist side 2,4 both ends of iron core are separately installed with mass block 6, and the other end of 6 direction of vibration of mass block passes through elastic supporting member for supporting optical member
It is fixed on the inner wall of motor shell 1, the periphery of mass block 6 is equipped with the guide rail magnet 7 being fixed on 1 inner wall of motor shell.
Wherein, iron core 4 is sleeved in 5 inner cavity of coil, and iron core 4 is combined with the installation of mass block 6, and mounting means can
To be bonding, then mass block 6 is tungsten steel block, and 6 other end of mass block realizes the outstanding of entire vibrating mass 3 by elastic supporting member for supporting optical member
It sets, meanwhile, realize reciprocating motion of the vibrating mass 3 in 5 inner cavity of coil.
As shown in figure 3, being passed through alternating current, specific work process in above-mentioned coil 5 are as follows:
After coil 5 is powered, iron core 4 can be magnetized, iron core 4 is magnetic with regard to band after magnetization, it is equivalent to one block of magnet,
The guide rail magnet 7 of the right and left can generate the effect of power to iron core 4, and the guide rail magnet 7 on the left side and the guide rail magnet 7 on the right are magnetic
Must be on the contrary, the guide rail magnet 7 on the left side can attract iron core 4, the magnet on the right can repel iron core 4, and the driving force on both sides is folded
Add, the driving force provided is bigger；And the driving force provided is non-linear；
After iron core 4 is by the effect of power, mass block 6 is driven to move downward, when the direction of alternating current changes, iron
The magnetic pole N and S of core 4 can change, and such iron core 4 just will drive mass block 6 and move right；
Wherein, the magnetic N and S that guide rail magnet 7 and iron core 4 are provided in Fig. 3 are one of situation, and F is the driving generated
Power, details are not described herein.
In the present invention, elastic supporting member for supporting optical member is that entire vibrating mass 3 provides support force and exercise recovery power, wherein the elasticity
Supporting element can use elastic slice or spring to realize, such as:
As depicted in figs. 1 and 2, which is U-shaped elastic slice 8, and a side of the U-shaped elastic slice 8 is fixed on quality
On block 6, the other end is fixed on the inner wall of motor shell 1, wherein the U-shaped elastic slice 8 also does setting of adapting to according to vibration demand
Meter, such as two side edge length differ, the mode of upper end alignment, naturally it is also possible to using the elastic slice of other shapes, herein not
It repeats again, without in the limitation present invention.
In the present invention, the setting of above-mentioned iron core 4 and coil 5 can be by the way of multiple groups, according to electronic product reality
Vibrational feedback demand be configured, it may be assumed that
The quantity of above-mentioned iron core 4 and coil 5 is several, is correspondingly arranged, such as:
As shown in Figure 4 and Figure 5, iron core 4 includes the first iron core 9 and the second iron core 10, and accordingly, coil 5 includes being nested in
First coil 11 on first iron core 9 and the second coil 12 being nested on the second iron core 10, first coil 11 and the second coil
12 are separately mounted on wiring board 2；
After iron core 4 and coil 5 are respectively set two groups, mass block 6 can also be correspondingly arranged two groups, naturally it is also possible to use
One group of set-up mode；
As shown in Figure 4, mass block 6 is one group, i.e. the first iron core 9 and the second iron core 10 share one group of mass block 6, it may be assumed that
6 one end of mass block is connect with the first iron core 9 and the second iron core 10 respectively, and the other end connects elastic supporting member for supporting optical member.
Wherein in linear vibration motor shown in Fig. 4, elastic supporting member for supporting optical member can also use above-mentioned Fig. 1 and U shown in Fig. 2
Type elastic slice, naturally it is also possible to by the way of spring, such as shown in Fig. 4:
Elastic supporting member for supporting optical member includes spring 13 and fixing axle 14, wherein one end that mass block 6 connects elastic supporting member for supporting optical member is provided with
Protrusion 15 with mounting hole, in protrusion 15, the other end is fixed on the inner wall of motor shell 1 13 1 end cap of spring, fixed
Axis 14 is sleeved in spring 13, and one end is fixed on 1 inner wall of motor shell, and the other end is mounted in mounting hole, wherein fixing axle
14 with the mounting means of motor shell 1 can be using welding by the way of.
In the present invention, in order to ensure the stability of entire vibrating mass 3, that is, prevent vibrating mass 3 from rotating, it can be in mass block
Mounting groove 16 is respectively equipped on 6 on opposite two sides, balanceable magnet 17 is separately installed in mounting groove 16, the balanceable magnet 17 peace
Mounted in the two sides of the mass block 6, magnetic attracting mode is installed, and two groups of balanceable magnets 17 generate attracting magnetic force, places vibration
Block 3 rotates.
Wherein, the working principle of linear vibration motor shown in Fig. 4 is as shown in figure 3, details are not described herein, the drive provided
Power is bigger compared to the driving force that linear vibration motor shown in FIG. 1 provides.
In the linear vibration motor shown in above-mentioned Fig. 1 to Fig. 4, above-mentioned guide rail magnet 7 can be using the magnetic of blocky mechanism
Iron is arranged several blocks of guide rail magnet 7 on the periphery of mass block 6, realizes the effect for generating power with the iron core 4 after magnetization；
Can certainly be by the way of annular magnet, details are not described herein.
As shown in Figure 1 and Figure 4, motor shell 1 can be realized in such a way that upper cover 18 and lower plate 19 fasten, herein not
It repeats again.
In the present invention, linear vibration motor includes motor shell 1 and the wiring board 2 that is fixed on inside motor shell 1, horse
Suspension has vibrating mass 3 inside up to shell 1, and vibrating mass 3 includes iron core 4, and iron core 4 is nested in 5 inner cavity of coil, and coil 5 is mounted on
On wiring board 2,4 both ends of iron core are separately installed with mass block 6, and the other end of mass block 6 is fixed on motor by elastic supporting member for supporting optical member
On the inner wall of shell 1, the periphery of mass block 6 is equipped with the guide rail magnet 7 being fixed on 1 inner wall of motor shell, realizes and produces to electronics
The system vibration feedback effect of product, meanwhile, iron core 4 magnetizes when coil 5 is powered, and generates magneticaction with guide rail magnet 7, provides
Biggish driving force meets the requirement of the vibrational feedback experience of user.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (9)
1. a kind of linear vibration motor, including motor shell and the wiring board being fixed on inside the motor shell, feature exists
In, suspension has vibrating mass inside the motor shell, and the vibrating mass includes iron core, and the iron core is nested in coil inner cavity,
The coil is fixedly mounted on the wiring board, and the iron core both ends are separately installed with mass block, the mass block vibration side
To the other end be fixed on the inner wall of the motor shell by elastic supporting member for supporting optical member, the periphery of the mass block is equipped with and is fixed on
Guide rail magnet on the motor shell inner wall；
The iron core is interacted after the coil magnetizing with the guide rail magnet, drives the mass block in the coil
Side-to-side movement.
2. linear vibration motor according to claim 1, which is characterized in that the elastic supporting member for supporting optical member is U-shaped elastic slice, described
One side of U-shaped elastic slice is fixed on the mass block, and the other end is fixed on the inner wall of the motor shell.
3. linear vibration motor according to claim 1, which is characterized in that the quantity of the iron core and coil is several
It is a.
4. linear vibration motor according to claim 3, which is characterized in that the iron core includes the first iron core and the second iron
Core, accordingly, the coil include the first coil being nested on first iron core and are nested on second iron core
Second coil, the first coil and the second coil are separately mounted on the wiring board.
5. linear vibration motor according to claim 4, which is characterized in that described mass block one end is respectively with described first
Iron core and the connection of the second iron core, the other end connect the elastic supporting member for supporting optical member.
6. linear vibration motor according to claim 5, which is characterized in that the elastic supporting member for supporting optical member includes spring and fixation
Axis, wherein one end that the mass block connects the elastic supporting member for supporting optical member is provided with the protrusion with mounting hole, the spring one end
It covering in the protrusion, the other end is fixed on the inner wall of the motor shell, and the fixed hub is in the spring, and one
End is fixed on the motor shell inner wall, and the other end is installed in the mounting hole.
7. linear vibration motor according to claim 6, which is characterized in that on the mass block on opposite two sides respectively
Equipped with mounting groove, balanceable magnet is separately installed in the mounting groove.
8. linear vibration motor according to any one of claims 1 to 7, which is characterized in that the guide rail magnet is several
A bulk magnet.
9. linear vibration motor according to any one of claims 1 to 7, which is characterized in that the guide rail magnet is suit
Annular magnet on the mass block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510867182.7A CN105406679B (en) | 2015-11-30 | 2015-11-30 | A kind of linear vibration motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510867182.7A CN105406679B (en) | 2015-11-30 | 2015-11-30 | A kind of linear vibration motor |
Publications (2)
| Publication Number | Publication Date |
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| CN105406679A CN105406679A (en) | 2016-03-16 |
| CN105406679B true CN105406679B (en) | 2019-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510867182.7A Active CN105406679B (en) | 2015-11-30 | 2015-11-30 | A kind of linear vibration motor |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208599B (en) * | 2016-07-21 | 2018-09-21 | 瑞声科技(新加坡)有限公司 | Linear vibration electric motor |
| CN106208602A (en) * | 2016-07-28 | 2016-12-07 | 深圳市信维通信股份有限公司 | Linear vibration motor |
| CN106253623B (en) * | 2016-08-12 | 2018-09-28 | 歌尔股份有限公司 | A kind of linear vibrator for the double vibrational systems being provided with cushion pad |
| CN106253624B (en) * | 2016-08-12 | 2018-09-28 | 歌尔股份有限公司 | A kind of linear vibrator of double vibrational systems |
| CN108566066A (en) * | 2018-07-27 | 2018-09-21 | 苏州国华特种线材有限公司 | A kind of linear vibration motor |
| CN110460940B (en) * | 2019-08-29 | 2020-10-16 | 潘国昌 | Assembling method of balanced vibration component |
| CN115173634A (en) * | 2022-07-07 | 2022-10-11 | 四川安和精密电子电器股份有限公司 | Vibration motor adopting soaking plate for cooling and radiating |
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| CN1509514A (en) * | 2001-03-27 | 2004-06-30 | 松下电工株式会社 | Linear oscillator and electrical driven toothbrush |
| CN204334275U (en) * | 2014-12-23 | 2015-05-13 | 瑞声光电科技(常州)有限公司 | vibration motor |
| CN204733057U (en) * | 2015-06-18 | 2015-10-28 | 瑞声光电科技(常州)有限公司 | Linear vibration electric motor |
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| NL8400791A (en) * | 1984-03-13 | 1985-10-01 | Philips Nv | VIBRATION MOTOR WITH A ROTATING BEARING ANCHOR. |
| JP2011230067A (en) * | 2010-04-28 | 2011-11-17 | Alps Electric Co Ltd | Vibration generating device |
| CN103401395A (en) * | 2013-08-15 | 2013-11-20 | 王健 | Horizontal linear vibration motor |
| CN104660106B (en) * | 2015-02-02 | 2017-04-12 | 瑞声精密电子沭阳有限公司 | Flat linear vibration motor |
| CN205178822U (en) * | 2015-11-30 | 2016-04-20 | 歌尔声学股份有限公司 | Linear vibrating motor |
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Patent Citations (3)
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| CN1509514A (en) * | 2001-03-27 | 2004-06-30 | 松下电工株式会社 | Linear oscillator and electrical driven toothbrush |
| CN204334275U (en) * | 2014-12-23 | 2015-05-13 | 瑞声光电科技(常州)有限公司 | vibration motor |
| CN204733057U (en) * | 2015-06-18 | 2015-10-28 | 瑞声光电科技(常州)有限公司 | Linear vibration electric motor |
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| CN105406679A (en) | 2016-03-16 |
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Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Applicant after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Applicant before: Goertek Inc. |
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