CN105262310A - Linear vibration motor - Google Patents
Linear vibration motor Download PDFInfo
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- CN105262310A CN105262310A CN201510835648.5A CN201510835648A CN105262310A CN 105262310 A CN105262310 A CN 105262310A CN 201510835648 A CN201510835648 A CN 201510835648A CN 105262310 A CN105262310 A CN 105262310A
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Abstract
The invention provides a linear vibration motor, which comprises a vibrator and a stator, wherein the vibrator comprises a clump weight and a vibration block embedded in the clump weight; the stator comprises a stator coil and a magnetic conduction core arranged inside the stator coil; the vibration block comprises at least two adjacently-arranged permanent magnets and magnetic conduction yokes/magnets arranged between the adjacently-arranged permanent magnets, and the adjacent connection end of each two adjacently-arranged permanent magnets has the same polarity; and at two ends of the magnetic conduction yoke/magnet, the section width of at least one end is larger than the section width of the middle part of the magnetic conduction yoke/magnet, and the structure of the permanent magnet is matched with that of the adjacently-arranged magnetic conduction yoke/magnet. By using the above linear vibration motor, trend of a magnetic force line can be controlled, the magnetic force lines passing through the stator coil are increased, and the vibration sense of the linear vibration motor is enhanced.
Description
Technical field
The present invention relates to consumption electronic product technical field, more specifically, relate to a kind of linear vibration motor being applied to portable consumer electronics product.
Background technology
Along with the development of the communication technology, portable type electronic product, as mobile phone, handheld device or palm multimedia entertainment equipment etc. enter the life of people.In these portable type electronic products, generally can do system feedback with vibrating motor, the incoming call prompting of such as mobile phone, the vibrational feedback etc. of game machine.But along with the lightening development trend of electronic product, the various components and parts of its inside also need to adapt to this trend, and vibrating motor is no exception.
Existing vibrating motor, the oscillator (comprising balancing weight and permanent magnet) of the linear vibration that generally comprises upper cover, forms the lower cover of oscillation space with upper cover, does in oscillation space, is connected upper cover and makes oscillator do the elastic supporting member for supporting optical member of double vibrations and be positioned at the stator coil of a segment distance below oscillator.
In the vibrating motor of above-mentioned this structure, the magnetic line of force that the permanent magnet in oscillator itself produces compares dispersion, and the relative magnetic flux through stator coil also can be smaller, and the active force of generation can be smaller, affects vibration sense effect; When moving to two ends, the mode that vertically magnetizes is also little through the magnetic flux of stator coil, thus has influence on the vibration sense of electronic product, straight-line oscillation response speed compared with slow, vibration sense is little.
Summary of the invention
In view of the above problems, the object of this invention is to provide a kind of linear vibration motor, to solve the problems such as vibratory response speed existing for current motor is comparatively slow, vibration sense is little.
According to the invention provides a kind of linear vibration motor, comprise oscillator and stator, oscillator comprises balancing weight and is embedded the vibrating mass in balancing weight, and stator comprises stator coil and is arranged on the magnetic conduction core of stator coil inside; Wherein, vibrating mass comprises at least two blocks of adjacent permanent magnets arranged and the conductive magnetic yoke/magnet be arranged between adjacent permanent magnet, and the polarity of the abutting end of the permanent magnet of every two pieces of adjacent settings is identical; Further, in the two ends of conductive magnetic yoke/magnet, at least the cross-sectional width of one end is greater than the cross-sectional width of the mid portion of conductive magnetic yoke/magnet, and the structure of permanent magnet is suitable with the structure of adjacent conductive magnetic yoke/magnet.
In addition, preferred scheme is, the cross section of conductive magnetic yoke/magnet is " work " font structure, and permanent magnet is provided with the avoiding structure suitable with " work " font structure.
In addition, preferred scheme is, the cross section of conductive magnetic yoke/magnet is trapezium structure; The cross-sectional width of the upper surface of conductive magnetic yoke/magnet is greater than the cross-sectional width of mid portion; Or the cross-sectional width of the lower surface of conductive magnetic yoke/magnet is greater than the cross-sectional width of mid portion; Permanent magnet is provided with avoiding structure near one end correspondence of conductive magnetic yoke/magnet.
In addition, preferred scheme is, the axis direction of stator coil is vertical with the magnetizing direction of the permanent magnet of vibrating mass, conductive magnetic yoke/magnet and magnetic conduction core Heterogeneous Permutation.
In addition, preferred scheme is, between conductive magnetic yoke/magnet and the magnetic conduction core corresponding with conductive magnetic yoke/magnet, the distance d of horizontal direction is positioned in the number range of [0.1mm, 0.3mm].
In addition, preferred scheme is, stator comprises the corresponding stator coil being arranged on oscillator side or upper and lower both sides and the magnetic conduction core arranged in the stator coils, and the axis direction of stator coil is vertical with the magnetizing direction of the permanent magnet of vibrating mass.
In addition, preferred scheme is, when stator comprises the corresponding stator coil being arranged on the upper and lower both sides of vibrating mass and the magnetic conduction core arranging in the stator coils, the corresponding stator coil being arranged on the upper and lower both sides of vibrating mass is parallel to each other and the sense of current in stator coil is contrary.
In addition, preferred scheme is, on balancing weight, the position of corresponding stator is provided with the avoiding structure of dodging stator; The groove holding vibrating mass is provided with at the medium position of balancing weight.
In addition, preferred scheme also comprises shell; Be symmetrically arranged with at the two ends of oscillator and recommend magnet; Position corresponding with recommending magnet on shell is fixedly installed recommends coil around what recommend magnet; Recommend coil winding recommending on coil rack.
In addition, preferred scheme is, balancing weight is provided with the accepting groove that magnet is recommended in collecting.
Utilize above-mentioned according to linear vibration motor of the present invention, conductive magnetic yoke/the magnet of polymorphic structure is set between the permanent magnet of oscillator, by the conductive magnetic yoke/magnet of polymorphic structure, the magnetic line of force that permanent magnet produces is gathered, enable stator obtain magnetic flux large as far as possible, thus strengthen the seismaesthesia of linear vibration motor.
In order to realize above-mentioned and relevant object, will describe in detail and the feature particularly pointed out in the claims after one or more aspect of the present invention comprises.Explanation below and accompanying drawing describe some illustrative aspects of the present invention in detail.But what these aspects indicated is only some modes that can use in the various modes of principle of the present invention.In addition, the present invention is intended to comprise all these aspects and their equivalent.
Accompanying drawing explanation
By reference to the content below in conjunction with the description of the drawings and claims, and understand more comprehensively along with to of the present invention, other object of the present invention and result will be understood and easy to understand more.In the accompanying drawings:
Fig. 1 is the decomposition texture schematic diagram of the linear vibration motor according to the embodiment of the present invention;
Fig. 2 is the cross-sectional view of the linear vibration motor according to the embodiment of the present invention;
Fig. 3-1 is the conductive magnetic yoke/magnet cross section structure schematic diagram one according to the embodiment of the present invention;
Fig. 3-2 is the conductive magnetic yoke/magnet cross section structure schematic diagram two according to the embodiment of the present invention;
Fig. 4-1 is vibrating mass according to the embodiment of the present invention and stator combined structure schematic diagram;
Fig. 4-2 is the stressed schematic diagram of vibrating mass under the stator coil "on" position in Fig. 4-1;
Fig. 5-1 is vibrating mass according to another specific embodiment of the present invention and stator combined structure schematic diagram;
Fig. 5-2 is the stressed schematic diagram of vibrating mass under the stator coil "on" position in Fig. 5-1.
Reference numeral wherein comprises: upper cover 1, recommend coil 2, recommend coil rack 3, recommend magnet 4, balancing weight 5, accepting groove 51a, accepting groove 51b, groove 52, first stator coil 61, second stator coil 62, first magnetic conduction core 71, second magnetic conduction core 72, first permanent magnet 81, second permanent magnet 82, the 3rd permanent magnet 83, the first conductive magnetic yoke/magnet 91, the second conductive magnetic yoke/magnet 92, shell fragment 10, lower cover 11.
Label identical in all of the figs indicates similar or corresponding feature or function.
Embodiment
In the following description, for purposes of illustration, in order to provide the complete understanding to one or more embodiment, many details have been set forth.But, clearly, also these embodiments can be realized when there is no these details.In other example, one or more embodiment for convenience of description, known structure and equipment illustrate in block form an.
The magnetic line of force produced for the permanent magnet itself solved in existing vibrating motor structure in oscillator compares dispersion, and the relative magnetic flux through stator coil also can be smaller, thus affect the problems such as the vibrating effect of product.The present invention arranges the conductive magnetic yoke/magnet of polymorphic structure between the permanent magnet of oscillator, by the conductive magnetic yoke/magnet of polymorphic structure, the magnetic line of force that permanent magnet produces is gathered, stator is enable to obtain magnetic flux large as far as possible, thus strengthen the seismaesthesia of linear vibration motor, obtain better Consumer's Experience.
For describing linear vibration motor structure of the present invention in detail, below with reference to accompanying drawing, specific embodiments of the invention are described in detail.
Fig. 1 shows the decomposition texture of the linear vibration motor according to the embodiment of the present invention; Fig. 2 shows the cross-section structure of the linear vibration motor according to the embodiment of the present invention.
As Fig. 1 and Fig. 2 jointly shown in, the linear vibration motor of the embodiment of the present invention, the stator comprising oscillator and be arranged in parallel with oscillator, oscillator comprises balancing weight and is embedded the vibrating mass in balancing weight, and stator comprises stator coil and is arranged on the magnetic conduction core of stator coil inside, wherein, vibrating mass comprises at least two blocks of adjacent permanent magnets arranged and the conductive magnetic yoke/magnet be arranged between permanent magnet, the polarity of the abutting end of the permanent magnet of every two pieces of adjacent settings is identical, and, in the two ends of conductive magnetic yoke/magnet, at least the cross-sectional width of one end is greater than the cross-sectional width of the mid portion of conductive magnetic yoke/magnet, the structure of permanent magnet is suitable with the structure of adjacent conductive magnetic yoke/magnet, by the conductive magnetic yoke/magnet of polymorphic structure, the magnetic line of force that permanent magnet produces is gathered, thus the magnetic line of force increased through stator coil, the vibrating effect of final enhancing linear vibration motor.
Particularly, Fig. 3-1 and Fig. 3-2 shows two kinds of odd-shaped cross section structures of the conductive magnetic yoke/magnet according to the embodiment of the present invention.
As shown in Fig. 3-1 and Fig. 3-2, in the two ends of conductive magnetic yoke/magnet, at least the cross-sectional width of one end is greater than the cross-sectional width of the mid portion of conductive magnetic yoke/magnet.In the cross section structure of the conductive magnetic yoke/magnet shown in Fig. 3-1, cross section " work " font structure of conductive magnetic yoke/magnet, the cross-sectional width at conductive magnetic yoke/magnet two ends is all greater than the cross-sectional width of the middle part of conductive magnetic yoke/magnet.In the cross section structure of the conductive magnetic yoke/magnet shown in Fig. 3-2, the cross section of conductive magnetic yoke/magnet is trapezium structure, the cross-sectional width of its one end is greater than the cross-sectional width of the middle part of conductive magnetic yoke/magnet, the cross-sectional width being specifically illustrated as lower end in figure is greater than the cross-sectional width of middle part, in fact, when the cross section of conductive magnetic yoke/magnet is trapezium structure, it can also be the cross-sectional width that the cross-sectional width of its upper end is greater than conductive magnetic yoke/magnet.For the ease of the assembling of vibrating mass, permanent magnet is provided with and " work " font structure or the suitable avoiding structure of trapezium structure, stator can be made between the permanent magnet conductive magnetic yoke/magnet of polymorphic structure being arranged on oscillator to obtain magnetic flux large as far as possible, thus strengthen the vibration sense of linear vibration motor.
It should be noted that, the polymorphic structure of the conductive magnetic yoke/magnet involved by linear vibration motor of the present invention is not limited to the concrete structure shown in accompanying drawing, guarantee in the two ends of conductive magnetic yoke/magnet, at least the cross-sectional width of one end is greater than the cross-sectional width of the mid portion of conductive magnetic yoke/magnet, also can be out of shape the structure of conductive magnetic yoke/magnet on this basis or improve.It should be noted that in addition, the magnet in the conductive magnetic yoke/magnet related in the application, being specially the magnet for strengthening magnetic field intensity, the concentration magnetic line of force that can substitute conductive magnetic yoke.
In addition, the stator in linear vibration motor of the present invention, comprise the corresponding stator coil being arranged on oscillator side or upper and lower both sides and the magnetic conduction core arranged in the stator coils, the axis direction of stator coil is vertical with the magnetizing direction of the permanent magnet of vibrating mass.Wherein, when stator comprises the corresponding stator coil being arranged on the upper and lower both sides of vibrating mass and the magnetic conduction core arranging in the stator coils, the corresponding stator coil being arranged on the upper and lower both sides of vibrating mass is parallel to each other and the sense of current in stator coil is contrary.
Be described in detail taking the cross section of conductive magnetic yoke/magnet as " work " font structure as the structure of specific embodiment to linear vibration motor below.
Shown in composition graphs 1 and Fig. 2, in a specific embodiment of the present invention, linear vibration motor comprises shell, collecting oscillator in the enclosure and the stator be arranged in parallel with oscillator, and shell comprises upper cover 1 and fixing lower cover 11 suitable with upper cover; Oscillator comprises balancing weight 5 and is embedded the vibrating mass in balancing weight 5 inside, and vibrating mass comprises the first permanent magnet 81, second permanent magnet 82, the 3rd permanent magnet 83 and is arranged on the first conductive magnetic yoke/magnet 91 between the first permanent magnet 81 and the second permanent magnet 82, is arranged on the second conductive magnetic yoke/magnet 92 between the second permanent magnet 82 and the 3rd permanent magnet 83; Stator comprises symmetrical and the second stator pack be arranged in parallel with the first stator pack being positioned at the first stator pack on the upside of oscillator and being positioned on the downside of oscillator.First stator pack comprises the first stator coil 61 and the first magnetic conduction core 71, second stator pack be arranged in the first stator coil 61 comprises the second stator coil 62 and the second magnetic conduction core 72 be arranged in the second stator coil 62; First stator coil 61 and the second stator coil 62 be arranged in parallel, and charging current direction is contrary.
Particularly, in three block permanent magnets of adjacent setting, each permanent magnet is identical with the polarity of the abutting end of the permanent magnet be connected, i.e. order or the arrangement of N-S, S-N, N-S order in S-N, N-S, S-N, conductive magnetic yoke/magnet is arranged between adjacent permanent magnet, and the magnetizing direction of permanent magnet is vertical with the axis direction of the stator coil of stator.Herein, the axis direction of stator coil is the direction at the central axis place of stator coil and magnetic conduction core wherein, and in this specific embodiment, the magnetizing direction of magnet is horizontal direction, and the axis direction of stator coil is vertical direction.The strength of repelling each other can be produced due between the two ends that the polarity that two permanent magnets are adjacent is identical, therefore, the magnetic line of force of permanent magnet can to concentrate by adjacent two permanent magnets between conductive magnetic yoke/magnet and the stator coil that is arranged on below vibrating mass, thus increase the magnetic flux through stator coil as far as possible.
Wherein, the axis direction of the stator coil of stator is vertical with the magnetizing direction of the permanent magnet of vibrating mass, conductive magnetic yoke/magnet and magnetic conduction core Heterogeneous Permutation.Between conductive magnetic yoke/magnet as shown in Figure 1 and the magnetic conduction core corresponding with conductive magnetic yoke/magnet, the distance d of horizontal direction is positioned at [0.1mm, 0.3mm] number range in, that is, the horizontal range of the center line of the magnetic conduction core of the distance between center line of each conductive magnetic yoke/magnet corresponding (also namely nearest) stator is 0.1 ~ 0.3mm.By reference to the accompanying drawings, first magnetic conduction core 71 and the distance between the first conductive magnetic yoke/magnet 91 and the second conductive magnetic yoke/magnet 92 equal the second magnetic conduction core 72 and the distance between the first conductive magnetic yoke/magnet 91 and the second conductive magnetic yoke/magnet 92, and this distance is all positioned in the number range of [0.1mm, 0.3mm].
In addition, on balancing weight 5, the position of corresponding stator is provided with the avoiding structure of dodging stator; The groove 52 holding vibrating mass is provided with at the medium position of balancing weight 5.The length in linear vibration motor X-direction of corresponding second permanent magnet 82 is greater than the length of its adjacent other permanent magnets arranged, therefore, on balancing weight 5, the groove of corresponding collecting the second permanent magnet 82 is also set to the structure that intermediate sizes is comparatively large, both sides size is less, thus time in the groove 52 permanent magnet being assembled to successively balancing weight 5, can position respectively by the permanent magnet different to size.Wherein, balancing weight 5 can adopt tungsten steel block or nickel steel block or the contour density-metal material of nickel tungsten to make, and to strengthen vibration force, makes the vibration of electronic product stronger.
In another embodiment of the present invention, stator only can be arranged on side or the both sides of oscillator.Be symmetricly set on oscillator both sides as Fig. 4-1, Fig. 4-2 and Fig. 5-1, Fig. 5-2 respectively illustrate stator coil and the vibrating mass of stator coil and stator combined structure and its vibrating mass stressing conditions under stator coil "on" position is only set in the side of oscillator.
Oscillator below with reference to Fig. 4-1 and Fig. 4-2 linear vibration motor of the present invention for example illustrates is provided with operation principle during two block permanent magnets.According to Fig. 4-1 and Fig. 4-2, in the linear vibration motor of the embodiment of the present invention, oscillator comprises three blocks of adjacent permanent magnets arranged and the conductive magnetic yoke/magnet be arranged between adjacent permanent magnet, and the first stator pack be positioned at above oscillator is symmetrical about oscillator with the second stator pack be positioned at below oscillator.
As shown in Fig. 4-1, under static state, the first magnetic conduction core and the distance between the first conductive magnetic yoke/magnet and the second conductive magnetic yoke/magnet equal the second magnetic conduction core and the distance between the first conductive magnetic yoke/magnet and the second conductive magnetic yoke/magnet.After passing into the contrary electric current in direction to the first stator coil be positioned on the upside of oscillator and the second stator coil be positioned on the downside of oscillator, according to the left hand rule judging electrical conductor Impact direction in magnetic field, stretch out left hand, make thumb and all the other four finger vertical, and all with palm in same plane; Allow magnetic induction line enter from the centre of the palm, and make four fingers point to sense of current, at this moment the direction of thumb indication is exactly the direction of electrified wire suffered Ampere force in magnetic field.
As shown in the Fig. 4-2, be denoted as " ⊙ " sense of current be vertical view towards outward, be denoted as "
" sense of current be vertical view towards inner, suppose the energising direction of the first stator coil be "
and ⊙ ", second stator coil is contrary with the energising direction of the first stator coil is " ⊙ and
", according to left hand rule first stator coil and the second stator coil, the Impact direction in magnetic field is F ' left, because stator coil maintains static, based on the relation of active force and reaction force, then and the stressed F to the right of permanent magnet.So, the permanent magnet being subject to motive force to the right just drives balancing weight to do translational motion to the right together, thus the bolster (such as, spring or shell fragment) on the right side of extruding balancing weight, the bolster on the left of stretching balancing weight.
In like manner, when the sense of current in the first stator coil and the second stator coil changes simultaneously, according to left hand rule, the direction of the magnetic field force F ' that stator coil is subject to is to the right.But because stator coil maintains static, then permanent magnet is subject to active force that is contrary with F ' direction and the F that size is identical, the permanent magnet being subject to motive force left just drives balancing weight to do translational motion left together, makes the bolster at balancing weight two ends continue to be stretched/to extrude after the reinstatement of extruding/extended state simultaneously.Above-mentioned motion hockets, and the oscillator that the vibrating mass of permanent magnet and conductive magnetic yoke/magnet composition and balancing weight are formed moves reciprocatingly in the direction of the mounting plane being parallel to stator, thus realizes the vibration of linear vibration motor.
It should be noted that, it is all similar with the vibration principle of above-mentioned linear vibration motor that the stator permanent magnet be only arranged in the situation of oscillator side and vibrating mass is set to the situation of two pieces, repeats no more herein.
Shown in composition graphs 1, in another embodiment of the present invention, be symmetrically arranged with at the two ends of balancing weight 5 to recommend magnet 4 and accommodate the accepting groove of recommending magnet 4 and (comprise accepting groove 51a and accepting groove 51b, lower same), recommend magnet 4 for two pieces and be placed on respectively in corresponding accepting groove.Position corresponding with recommending magnet 4 on shell is fixedly installed recommends coil 2 around what recommend magnet 4, to recommend coil 2 be energized after, recommend coil 2 to match with the magnet 4 of recommending of its inside, be fixed on shell can not move owing to recommending coil 2, thus make to recommend magnet 4 and be subject to onesize, direction opposite effect power, for oscillator along with the direction of the plane parallel at stator place on move reciprocatingly actuating force be provided.
Wherein, for convenience to recommending the coiling of coil 2 and fixing, can also comprise in linear vibration motor of the present invention and recommend coil rack 3, recommend coil 2 to be wound on and to recommend on coil rack 3, by being fixed on the shell of linear vibration motor by recommending coil rack 3, can realizing indirectly making to recommend coil 2 and being fixed on shell.
In addition, can also arrange shell fragment 10 at the two ends of balancing weight 5, one end of shell fragment 10 is connected with balancing weight, and the other end is fixed on shell, thus is hung on by oscillator in the space of shell formation, for the vibration of oscillator provides elastic restoring force; The magnetic field changed after magnetic conduction core energising in stator, by change magnetic field magnetic line walk always drive vibrator along and parallel plane direction, stator place on move reciprocatingly, namely the permanent magnet in vibrating mass and the magnetic conduction core in stator produce interactional traction thrust, finally make linear vibration motor vibrate
Utilize above-mentioned according to linear vibration motor of the present invention, conductive magnetic yoke/the magnet be arranged between permanent magnet is set to polymorphic structure, and by the conductive magnetic yoke/magnet of polymorphic structure, the magnetic line of force that permanent magnet produces is gathered, enable stator obtain magnetic flux large as far as possible, strengthen the vibration sense of linear vibration motor.
Describe in an illustrative manner according to linear vibration motor of the present invention above with reference to accompanying drawing.But, it will be appreciated by those skilled in the art that the linear vibration motor that the invention described above is proposed, various improvement can also be made on the basis not departing from content of the present invention.Therefore, protection scope of the present invention should be determined by the content of appending claims.
Claims (10)
1. a linear vibration motor, comprises oscillator and stator, and described oscillator comprises balancing weight and is embedded the vibrating mass in described balancing weight, and described stator comprises stator coil and is arranged on the magnetic conduction core of described stator coil inside; It is characterized in that,
Described vibrating mass comprises at least two blocks of adjacent permanent magnets arranged and the conductive magnetic yoke/magnet be arranged between adjacent permanent magnet, and the polarity of the abutting end of the permanent magnet of every two pieces of adjacent settings is identical; Further,
In the two ends of described conductive magnetic yoke/magnet, at least the cross-sectional width of one end is greater than the cross-sectional width of the mid portion of described conductive magnetic yoke/magnet, and the structure of described permanent magnet is suitable with the structure of adjacent conductive magnetic yoke/magnet.
2. linear vibration motor as claimed in claim 1, wherein,
The cross section of described conductive magnetic yoke/magnet is " work " font structure, and described permanent magnet is provided with the avoiding structure suitable with described " work " font structure.
3. linear vibration motor as claimed in claim 1, wherein,
The cross section of described conductive magnetic yoke/magnet is trapezium structure; The cross-sectional width of the upper surface of described conductive magnetic yoke/magnet is greater than the cross-sectional width of mid portion; Or the cross-sectional width of the lower surface of described conductive magnetic yoke/magnet is greater than the cross-sectional width of mid portion; Described permanent magnet is provided with avoiding structure near one end correspondence of described conductive magnetic yoke/magnet.
4. linear vibration motor as claimed in claim 1, wherein,
The axis direction of described stator coil is vertical with the magnetizing direction of the permanent magnet of described vibrating mass, described conductive magnetic yoke/magnet and described magnetic conduction core Heterogeneous Permutation.
5. linear vibration motor as claimed in claim 4, wherein,
Between described conductive magnetic yoke/magnet and the described magnetic conduction core corresponding with described conductive magnetic yoke/magnet, the distance d of horizontal direction is positioned in the number range of [0.1mm, 0.3mm].
6. linear vibration motor as claimed in claim 1, wherein,
Described stator comprises the corresponding stator coil being arranged on described oscillator side or upper and lower both sides and the magnetic conduction core be arranged in described stator coil, and the axis direction of described stator coil is vertical with the magnetizing direction of the permanent magnet of described vibrating mass.
7. linear vibration motor as claimed in claim 6, wherein, when stator comprises the corresponding stator coil being arranged on the upper and lower both sides of described vibrating mass and the magnetic conduction core being arranged in described stator coil,
The described corresponding stator coil being arranged on the upper and lower both sides of described vibrating mass is parallel to each other and the sense of current in stator coil is contrary.
8. linear vibration motor as claimed in claim 7, wherein,
On described balancing weight, the position of corresponding described stator is provided with the avoiding structure of dodging described stator;
The groove holding described vibrating mass is provided with at the medium position of described balancing weight.
9. linear vibration motor as claimed in claim 1, wherein, also comprises shell;
Be symmetrically arranged with at the two ends of described oscillator and recommend magnet;
On the housing with described recommend the corresponding position of magnet be fixedly installed around described recommend magnet recommend coil; Described coil winding of recommending is being recommended on coil rack.
10. linear vibration motor as claimed in claim 9, wherein,
Balancing weight is provided with the accepting groove of recommending magnet described in collecting.
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| CN201510835648.5A CN105262310B (en) | 2015-11-25 | 2015-11-25 | Linear vibration motor |
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| CN201510835648.5A CN105262310B (en) | 2015-11-25 | 2015-11-25 | Linear vibration motor |
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| CN105262310A true CN105262310A (en) | 2016-01-20 |
| CN105262310B CN105262310B (en) | 2019-01-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529896A (en) * | 2016-02-05 | 2016-04-27 | 歌尔声学股份有限公司 | Linear vibration motor |
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| CN201966779U (en) * | 2010-12-30 | 2011-09-07 | 瑞声光电科技(常州)有限公司 | Linear vibration motor |
| JP2012095497A (en) * | 2010-10-28 | 2012-05-17 | Aisin Seiki Co Ltd | Coil device for vibration type linear actuator and vibration type linear actuator |
| CN103812297A (en) * | 2012-11-12 | 2014-05-21 | 三星电机株式会社 | Linear vibration motor |
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| JPH08116658A (en) * | 1994-10-14 | 1996-05-07 | Tdk Corp | Variable magnet linear actuator and pump |
| CN101958630A (en) * | 2009-07-20 | 2011-01-26 | 三星电机株式会社 | Lienar for vibrating motor with magnetic shell |
| JP2012095497A (en) * | 2010-10-28 | 2012-05-17 | Aisin Seiki Co Ltd | Coil device for vibration type linear actuator and vibration type linear actuator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105529896A (en) * | 2016-02-05 | 2016-04-27 | 歌尔声学股份有限公司 | Linear vibration motor |
| WO2017133152A1 (en) * | 2016-02-05 | 2017-08-10 | 歌尔声学股份有限公司 | Linear vibration motor |
| CN105529896B (en) * | 2016-02-05 | 2019-01-11 | 歌尔股份有限公司 | Linear vibration motor |
| US11469656B2 (en) | 2016-02-05 | 2022-10-11 | Goertek Inc. | Linear vibrating motor |
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| CN105262310B (en) | 2019-01-18 |
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