CN106208608B - Vibrating motor and portable device - Google Patents
Vibrating motor and portable device Download PDFInfo
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- CN106208608B CN106208608B CN201610717241.7A CN201610717241A CN106208608B CN 106208608 B CN106208608 B CN 106208608B CN 201610717241 A CN201610717241 A CN 201610717241A CN 106208608 B CN106208608 B CN 106208608B
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- coil
- magnet
- lateral coil
- vibrating motor
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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
- H02K33/18—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The invention discloses a kind of vibrating motor and portable devices.The vibrating motor includes: that stator module includes coil；Vibration component includes clump weight and middle magnet, and clump weight has the first side wall being oppositely arranged and second sidewall；Stator module and vibration component are arranged in the inner cavity of shell, coil is fixedly installed on the inner wall of the housing, vibration component is suspended at the top of coil by elastic element, it is provided with the first lateral coil on any one in the first side wall and the first installation position, is provided with the first side magnet on another；It is provided with the second lateral coil in any one in second sidewall and the second installation position, is provided with second side magnet on another.
Description
Technical field
The present invention relates to technical field of electronic equipment, more particularly, to a kind of vibrating motor and portable device.
Background technique
Currently, most micro linear motors are usually that system drive power drive vibration component is realized body vibration.Vibration
Dynamic component it is relatively common be realized by elastic slice or spring it is of reciprocating vibration.Usually by vibration component be welded to mass block with
On shell.In order to reach connectivity robustness and stability of vibration, need to be designed the shape of elastic slice with connection type.But shape
The different elastic slice of shape is all inevitably generated stress concentration and elastic-plastic deformation in vibration processes, after vibrating some cycles
It just will appear polarization, deformation even fatigue fracture.
Summary of the invention
It is an object of the present invention to provide the new solutions of a kind of vibrating motor and portable device.
According to an aspect of the invention, there is provided a kind of vibrating motor.The vibrating motor includes:
Stator module, the stator module include coil；
Vibration component, the vibration component includes clump weight and the middle magnet that is fixedly connected with the clump weight, described to match
There is pouring weight the first side wall being oppositely arranged and second sidewall, the first side wall and the second sidewall to be parallel to X-axis；And
Shell, the stator module and the vibration component are arranged in the inner cavity of the shell, and the coil is fixed
It is arranged on the inner wall of the shell, the vibration component is suspended at the top of the coil, the bullet by elastic element
One end of property element is fixed on the inner wall of the shell, and the other end is fixedly connected with the clump weight, the elastic element
Active force along the x axis applied to the vibration component, the inner wall of the shell has opposite with the first side wall the
One installation position and second installation position opposite with the second sidewall, wherein appoint in the first side wall and the first installation position
It is provided with the first lateral coil in meaning one, the first side magnet, first lateral coil and first side are provided on another
Magnet is configured as mutually exclusive；Second side is provided in any one in the second sidewall and second installation position
Coil is provided with second side magnet on another, and second lateral coil is configured as mutually exclusive with second side magnet.
It preferably, further include the first iron core and the second iron core, first iron core is fixed on first lateral coil and is wrapped
In the space enclosed, second iron core is fixed in the space that second lateral coil is surrounded.
Preferably, the first side wall and the second sidewall are perpendicular to the plane where X-axis and Y-axis.
Preferably, first side magnet is multiple, the quantity of first lateral coil and the number of first side magnet
Measure corresponding, first side magnet is evenly distributed；Second side magnet be it is multiple, the quantity of second lateral coil with
The quantity of second side magnet is corresponding, and second side magnet is evenly distributed.
Preferably, the middle part of the clump weight is arranged in first side magnet and second side magnet.
Preferably, the elastic element is elastic slice or spring.
Preferably, it is provided with the first lateral coil on the first side wall, is provided with first on first installation position
Side magnet；It is provided with the second lateral coil in the second sidewall, is provided with second side magnet on second installation position.
Preferably, it is provided with the first side magnet on the first side wall, is provided with first on first installation position
Lateral coil；It is provided with second side magnet in the second sidewall, is provided with the second lateral coil on second installation position.
Preferably, first lateral coil and the second lateral coil specification having the same.
According to another aspect of the present invention, a kind of portable device is provided.The equipment includes institute provided by the invention
State vibrating motor.
It was found by the inventors of the present invention that in the prior art, the elastic slice of vibrating motor is easy in the long-term use
Now polarization, deformation even fatigue fracture.Therefore, the technical assignment to be realized of the present invention or the technical problem to be solved is that
It is that those skilled in the art never expect or it is not expected that, therefore the present invention is a kind of new technical solution.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1: the exploded view of the vibrating motor of the embodiment of the present invention.
Fig. 2: the top view of the vibrating motor of the embodiment of the present invention.
Fig. 3: the main view of the vibrating motor of the embodiment of the present invention.
Fig. 4: the working principle diagram of the side magnet of the vibrating motor of the embodiment of the present invention.
In figure, 11: upper casing；12: magnetic conductive board；13: middle magnet；14: coil；15: clump weight；16: the first side wall；17:
Second sidewall；18: the first lateral coils；19: the first side magnets；20: the first iron cores；21: the second lateral coils；22: second side magnet；
23: the second iron cores；24: elastic slice；25: damping；26: limited block；27:FPCB plate；28: lower casing.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
The present invention provides a kind of vibrating motors.As shown in Figure 1-3, the vibrating motor includes: stator module, vibration component
And shell.Stator module includes coil 14.Vibration component includes clump weight 15 and the middle magnetic that is fixedly connected with clump weight 15
Iron 13.Clump weight 15 has the first side wall 16 being oppositely arranged and second sidewall 17, the first side wall 16 parallel with second sidewall 17
In X-axis.Stator module and vibration component are arranged in the inner cavity of shell.Coil 14 is fixedly installed on the inner wall of the housing.Vibration
Dynamic component is suspended at the top of coil 14 by elastic element.One end of elastic element is fixed on the inner wall of the housing, and another
One end is fixedly connected with clump weight 15.Elastic element applies active force along the x axis to vibration component.The inner wall of shell has
First installation position opposite with the first side wall 16 and second installation position opposite with second sidewall 17.In the first side wall 16 and first
It is provided with the first lateral coil 18 in any one in installation position, is provided with the first side magnet 19 on another.First lateral coil 18
It is configured as with the first side magnet 19 mutually exclusive.Is provided in any one in second sidewall 17 and the second installation position
Two lateral coils 21 are provided with second side magnet 22 on another.Second lateral coil 21 is configured as mutually with second side magnet 22
Repel.
In use, as shown in figure 4, the first lateral coil 18 and the second lateral coil 21 are powered in advance, so that the first lateral coil 18
The repulsion of setting is formed between the first side magnet 19 and between the second lateral coil 21 and second side magnet 22.For example, shaking
The side of dynamic component, the pole N of the first lateral coil 18 are extremely opposite with the N of the first side magnet 19；In the other side of vibration component, second
The pole N of lateral coil 21 is extremely opposite with the N of second side magnet 22.And the action direction of two repulsion is on the contrary to guarantee vibration component
Stress balance, the size that the size of power passes through the electric current of control lateral coil according to actual needs are set.When polarizing,
There is the offset perpendicular to X-direction in vibration component.For example, being deviated to the first installation position direction.Due to the first lateral coil 18 with
The distance between first side magnet 19 becomes smaller, so that repulsion between the two increases, which can hinder the inclined of vibration component
It moves, to be effectively reduced polarization.
Relative to permanent magnet, the advantages of coil, is controllability height, it can by adjusting the size of electric current come adjustment force
Size.It is subject to processing the influence of precision, the elastic force and theoretical value of elastic slice 24 have deviation, and this deviation equally will cause partially
Vibration.In such a case, it is possible to adjust repulsion by the size for the electric current for adjusting the first lateral coil 18 and the second lateral coil 21
Size, and then polarized caused by modifying factor machining accuracy is insufficient.To make elastic slice 24 to the elastic force of vibration component closer to
Theoretical value.
In a kind of specific embodiment of the invention, as shown in Figure 1, shell includes: upper casing 11 and lower casing 28.Example
Such as, lower casing 28 is bottom plate, and upper casing 11 includes top plate and inner wall.Upper casing 11 is interlocked with lower casing 28, and inside forms accommodation space.?
FPCB plate 27 (flexible printed circuit board, Flexible Printed Circuit Board) is fixed on lower casing 28.FPCB plate
27 provide electric signal for enclosing the 14, first lateral coil 18 and the second lateral coil 21 to the midline.Coil 14 is fixed on lower casing 28.
For example, coil 14 is fixed on lower casing 28 by FPCB plate 27.
As shown in Figure 1-3, vibration component includes clump weight 15 and middle magnet 13.Clump weight 15 is for improving vibration component
Amplitude.Middle magnet 13 is for generating along the magnetic field of Z-direction.The type of middle magnet 13 can be, but not limited to, ferrite lattice
And ndfeb magnet.For example, it is contemplated that middle magnet 13 is set as cylindricality ferrite lattice to from a wealth of sources.During coil 14 is located at
In the magnetic field that magnet 13 is formed.In order to improve magnetic field strength, middle magnet 13 is set as multiple, such as 2.And 2 middle magnet
13 are symmetrically embedded in clump weight 15.The mode being embedded reduces the volume of vibration component.Preferably, clump weight 15 uses
Mild steel.In this way, clump weight 15 can also play the role of the magnetic line of force for gathering middle magnet 13, to prevent leak-stopping magnetic, and then improve
The sensitivity of vibrating motor.In order to further gather the magnetic line of force that middle magnet 13 generates, in the separate coil of middle magnet 13
14 side is additionally provided with magnetic conductive board 12.The material of magnetic conductive board 12 can be, such as mild steel.Mild steel has good magnetic conduction
Effect.
In one example, as illustrated in fig. 1 and 2, the first lateral coil 18 is provided on the first side wall 16 of clump weight 15.
In order to save the space of vibration component, the first lateral coil 18 is embedded in the first side wall 16.The side of shell has the first installation position.
The first side magnet 19 is provided on the first installation position.The second lateral coil 21 is provided in the second sidewall 17 of clump weight 15.
In order to save the space of vibration component, the second lateral coil 21 is embedded in second sidewall 17.The side of shell has the second installation position.
Second side magnet 22 is provided on the second installation position.First lateral coil 18 and the second lateral coil 21 connect with 27 signal of FPCB plate
It connects.First side magnet 19 and second side magnet 22 can be, but not limited to, ferrite lattice or ndfeb magnet, as long as energy
It is enough to generate repulsion with the lateral coil being powered.For the ease of installation, the first side magnet 19 and second side magnet 22 are set as piece
Shape.The structure can effectively prevent the polarization of vibration component.
In order to gather the magnetic line of force of lateral coil generation, in a kind of specific embodiment of the invention, as shown in Figure 1,
Vibrating motor further includes the first iron core 20 and the second iron core 23.First iron core 20 is fixed at what the first lateral coil 18 was surrounded
In space.In this embodiment, the first iron core 20 is fixed on the first side wall 16.Second iron core 23 is fixed at the second side line
In the space that circle 21 is surrounded.In this embodiment, the second iron core 23 is fixed in second sidewall 17.Iron core (including the first iron
Core 20 and the second iron core 23) material be mild steel.The setting of iron core gathers magnetic induction line, and then substantially increases side line
Enclose the efficiency of (including the first lateral coil 18 and the second lateral coil 21) and the sensitivity of vibration component vibration.
Certainly, iron core (including the first iron core 20 and second iron core 23) also can be set in other positions.For example, iron core is set
It sets in the side by nearside magnet of lateral coil, and is located at the middle part of lateral coil.The work for gathering the magnetic line of force can equally be played
With.
There are many set-up modes of elastic element.For example, as illustrated in fig. 1 and 2, elastic element is elastic slice 24, elastic slice 24 is 2
A, 2 elastic slices 24 are symmetrically disposed about with vibration component.In this embodiment, elastic slice 24 is similar to C character form structure.
The one arm of elastic slice 24 is fixedly connected with clump weight 15.Another arm of elastic slice 24 is fixedly connected with the casing, for example, with shell
Inner wall is fixedly connected.24 oscillating region of elastic slice is excessive in order to prevent, along the direction of vibration of elastic slice 24, i.e. two sides of X-direction
It is provided with limited block 26.Limited block 26 is fixed on lower casing 28.It is fixedly installed in the side of the close elastic slice 24 of limited block 26
Damping 25.The material of damping 25 can be, but not limited to, rubber, silica gel etc..Damping 25 can be touched effectively buffering spring sheet 24
Hit power.When vibration, the energization of coil 14 vibrates vibration component along the x axis, while can make elastic slice 24 that elastic deformation, bullet occur
The active force of piece 24 and the direction of motion of vibration component are opposite.During the motion, elastic slice 24 can collide with damping 25, with
It transfers vibrations on shell.Limited block 26 can effectively limit the scope of activities of elastic slice 24, avoid because scope of activities is excessive
Lead to the damage of elastic slice 24.Elastic slice 24 is matched with coil 14 makes vibration component move reciprocatingly in the range of setting.
Certainly, elastic element may be set to be spring.Spring can use extension spring.Extension spring can make to vibrate
Effect of the component by expansionary force.Vibration component is not susceptible to reverse under the action of expansionary force, to reduce vibration component
Offset.It is of course also possible to use compressed spring.
As illustrated in fig. 1 and 2, the direction of vibration of the vibrating motor is along the x axis.Predictably, vibration component is in Y-axis
A possibility that polarizing on direction is maximum.Therefore, in a preferred embodiment of the invention, 16 He of the first side wall
Second sidewall 17 is perpendicular to the plane where X-axis and Y-axis.In this setup, side magnet (including 19 He of the first side magnet
Second side magnet 22) and lateral coil (including the first lateral coil 18 and the second lateral coil 21) generate repulsion be along the y axis, from
And it can effectively prevent the polarization of vibration component along the y axis.
Under normal conditions, the center of gravity of vibration component is located at the middle part of vibration component.In order to more effectively prevent vibration component
Polarization, as shown in figure 3, the middle part of clump weight 15 is arranged in the first side magnet 19 and second side magnet 22.For example, the first side magnetic
Body 19 and the specification having the same of second side magnet 22, and symmetrically it is embedded side wall (including the first side wall in clump weight 15
16 and second sidewall 17) middle part.After identical specification can guarantee that the first side magnet 19 and second side magnet 22 are installed,
The center of gravity of vibration component does not shift, to reduce offset.
In order to further prevent the polarization of vibration component, in a kind of specific embodiment of the invention, the first side magnetic
Body 19 is multiple (not shown).The quantity of first lateral coil 18 is corresponding with the quantity of the first side magnet 19.Second side magnet 22
To be multiple, the quantity of the second lateral coil 21 is corresponding with the quantity of second side magnet 22.First side magnet 19 and second side magnet
22 quantity is equal, and multiple first sides magnet 19 and multiple second side magnets 22 be evenly distributed in where side wall or
On shell.
The (not shown) in the another embodiment of invention, the first lateral coil 18 are arranged on the first installation position, and first
Side magnet 19 is arranged on the first side wall 16.Second lateral coil 21 is arranged on the second installation position, and the setting of second side magnet 22 exists
In second sidewall 17.The structure can equally play the role of that vibration component is prevented to polarize.
The present invention also provides a kind of portable device, which can be, but not limited to, mobile phone, plate electricity
Brain, laptop and smartwatch.The portable device includes vibrating motor (not shown) provided by the invention.
The characteristics of portable device has vibrating effect good, long service life.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (9)
1. a kind of vibrating motor characterized by comprising
Stator module, the stator module include coil (14)；
Vibration component, the vibration component include clump weight (15) and the middle magnet that is fixedly connected with the clump weight (15)
(13), the clump weight (15) has the first side wall (16) being oppositely arranged and second sidewall (17), the first side wall (16)
X-axis is parallel to the second sidewall (17)；
Shell, the stator module and the vibration component are arranged in the inner cavity of the shell, the coil fixed setting
On the inner wall of the shell, the vibration component is suspended at the top of the coil, the elasticity member by elastic element
One end of part is fixed on the inner wall of the shell, and the other end is fixedly connected with the clump weight (15), the elastic element
Active force along the x axis is applied to the vibration component, the inner wall of the shell has opposite with the first side wall (16)
The first installation position and second installation position opposite with the second sidewall (17), wherein in the first side wall (16) and
It being provided in any one in one installation position the first lateral coil (18), first lateral coil (18) is insertion setting, another
On be provided with the first side magnet (19), first lateral coil (18) is configured as mutually arranging with first side magnet (19)
Reprimand；It is provided with the second lateral coil (21) in any one in the second sidewall (17) and second installation position, it is described
Second lateral coil (21) is insertion setting, is provided with second side magnet (22) on another, second lateral coil (21) and institute
State second side magnet (22) be configured as it is mutually exclusive；And
First iron core (20) and the second iron core (23), first iron core (20) are fixed on first lateral coil (18) and are surrounded
Space in, second iron core (23) is fixed in the space that second lateral coil (21) is surrounded.
2. vibrating motor according to claim 1, which is characterized in that the first side wall (16) and the second sidewall
(17) perpendicular to the plane where X-axis and Y-axis.
3. vibrating motor according to claim 1, which is characterized in that first side magnet (19) be it is multiple, described the
The quantity of one lateral coil (18) is corresponding with the quantity of first side magnet (19), and first side magnet (19) equably divides
Cloth；Second side magnet (22) is multiple, the number of the quantity of second lateral coil (21) and second side magnet (22)
Measure corresponding, second side magnet (22) is evenly distributed.
4. vibrating motor according to claim 1, which is characterized in that first side magnet (19) and second side magnetic
The middle part of the clump weight is arranged in body (22).
5. vibrating motor according to claim 1, which is characterized in that the elastic element is elastic slice (24) or spring.
6. vibrating motor according to claim 1, which is characterized in that be provided with the first side on the first side wall (16)
Coil (18) is provided with the first side magnet (19) on first installation position；Is provided on the second sidewall (17)
Two lateral coils (21) are provided with second side magnet (22) on second installation position.
7. vibrating motor according to claim 1, which is characterized in that be provided with the first side on the first side wall (16)
Magnet (19) is provided with the first lateral coil (18) on first installation position；Is provided on the second sidewall (17)
Two side magnets (22), are provided with the second lateral coil (21) on second installation position.
8. vibrating motor according to claim 1, which is characterized in that first lateral coil (18) and second side line
Enclose (21) specification having the same.
9. a kind of portable device, which is characterized in that including the vibrating motor as described in any one in claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610717241.7A CN106208608B (en) | 2016-08-24 | 2016-08-24 | Vibrating motor and portable device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610717241.7A CN106208608B (en) | 2016-08-24 | 2016-08-24 | Vibrating motor and portable device |
Publications (2)
| Publication Number | Publication Date |
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| CN106208608A CN106208608A (en) | 2016-12-07 |
| CN106208608B true CN106208608B (en) | 2019-01-18 |
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| CN201610717241.7A Active CN106208608B (en) | 2016-08-24 | 2016-08-24 | Vibrating motor and portable device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994938B (en) * | 2019-12-16 | 2022-04-19 | 瑞声科技(新加坡)有限公司 | Double-frequency vibration motor |
| CN214314998U (en) * | 2020-12-25 | 2021-09-28 | 瑞声光电科技(常州)有限公司 | Vibration motor |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006280156A (en) * | 2005-03-30 | 2006-10-12 | Aisin Seiki Co Ltd | Linear motor, linear compressor using the same, and cold accumulating refrigerator |
| CN103490582A (en) * | 2013-10-12 | 2014-01-01 | 金龙机电股份有限公司 | Thin type flat linear vibration motor |
| CN203747559U (en) * | 2014-01-10 | 2014-07-30 | 瑞声光电科技(常州)有限公司 | Vibration motor |
| KR20160028134A (en) * | 2014-09-03 | 2016-03-11 | 부전전자 주식회사 | Cantilever type vibrator |
| CN204442142U (en) * | 2014-12-23 | 2015-07-01 | 瑞声光电科技(常州)有限公司 | Vibrating motor |
| CN104660003B (en) * | 2015-02-02 | 2017-05-10 | 瑞声光电科技(常州)有限公司 | Flat linear vibration motor |
| CN105743318A (en) * | 2016-01-29 | 2016-07-06 | 瑞声光电科技(常州)有限公司 | Vibration motor |
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2016
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