CN205753919U - Linear vibration motor - Google Patents
Linear vibration motor Download PDFInfo
- Publication number
- CN205753919U CN205753919U CN201620517377.9U CN201620517377U CN205753919U CN 205753919 U CN205753919 U CN 205753919U CN 201620517377 U CN201620517377 U CN 201620517377U CN 205753919 U CN205753919 U CN 205753919U
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- coil
- vibration motor
- linear vibration
- mass
- permanent magnet
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Abstract
This utility model provides a kind of linear vibration motor, including shell, houses vibrational system in the enclosure and magnetic circuit system；Wherein, vibrational system includes mass, permanent magnet and shell fragment；Magnetic circuit system includes conductive magnetic yoke and coil；Shell fragment includes fixing fixing seat, the fixing end in cylinder cap-like structure and the resilient attachment arms between fixing seat and fixing end being connected with shell；Permanent magnet is two pieces, arranges and is fixed on along linear vibration motor Z-direction on shell, and coil is set in the outside of two block permanent magnet abutting ends, and and two block permanent magnets between there is gap；Mass is set in outside coil, encloses side and be connected by fixing end is fixing with the peripheral side of coil in mass；Fixing end is same structure with conductive magnetic yoke.Utilize above-mentioned utility model, it is possible to avoid the wiping between conductive magnetic yoke and coil to touch, reduce the difficulty of processing of shell fragment, improve production efficiency.
Description
Technical field
This utility model relates to motor technologies field, more specifically, relating to the linear oscillator horse of a kind of Z-direction vibration
Reach.
Background technology
Along with the development of communication technology, portable type electronic product, such as mobile phone, handheld device or palm multimedia recreation
Equipment etc. enter the life of people.In these portable type electronic products, typically 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, in it
The various components and parts in portion also need to adapt to this trend, and vibrating motor is no exception.
Existing linear vibration motor generally comprises upper cover and forms the lower cover of oscillation space, in oscillation space with upper cover
Do the vibrational system (including balancing weight and permanent magnet) of linear vibration, connect upper cover and make oscillator do shell fragment of reciprocating vibration
And stator system.At present, the structure of shell fragment combines with conductive magnetic yoke and cannot apply in magnetic magnetic circuit and moving winding structure
In motor, shell fragment has certain limitation, and difficulty of processing is bigger；Additionally, shell fragment and conductive magnetic yoke are assembling assembly, reliably
Property poor, it is impossible to give full play to the function of conductive magnetic yoke, affect being quick on the draw property and the reliability of motor, assemble complexity, become to produce efficiency
Relatively low.
Utility model content
In view of the above problems, the purpose of this utility model is to provide a kind of linear vibration motor, to solve current shell fragment knot
Structure is complicated, easy and coil produces the problems such as collision.
The linear vibration motor that this utility model provides, including shell, houses vibrational system in the enclosure and magnetic circuit system
System；Wherein, vibrational system includes mass, permanent magnet and shell fragment；Magnetic circuit system includes conductive magnetic yoke and coil；Shell fragment include with
Shell fixes the fixing seat of connection, the fixing end in cylinder cap-like structure and the elastic connection between fixing seat and fixing end
Arm；Permanent magnet is two pieces, arranges and is fixed on along linear vibration motor Z-direction on shell, and coil is set in two block permanent magnets
The outside of abutting end, and and two block permanent magnets between there is gap；Mass is set in outside coil, enclose in mass side with
The peripheral side of coil connects by fixing end is fixing；Fixing end is same structure with conductive magnetic yoke.
Furthermore it is preferred that structure be that shell is circular configuration, it is corresponding that two block permanent magnets are separately fixed at shell upper-lower position
The circle centre position of two medial walls.
Furthermore it is preferred that structure be that the cross section of fixing end be " L " shape bending structure, including vertical side and with erect
The vertically disposed horizontal sides of straight sided, vertical side encloses side in being fitted in mass, horizontal sides is buckled on the end face of mass；
Enclose side in fixing end to fit with coil.
Furthermore it is preferred that structure be that permanent magnet is circular configuration；Mass, fixing end, coil and the position, axle center of permanent magnet
On same straight line.
Furthermore it is preferred that structure be on fixing end, be evenly arranged with escape groove structure.
Furthermore it is preferred that structure be also to include the electric connection board being fixed on shell；Wherein, electric connection board is arranged
Have and the pad of coil conducting.
Furthermore it is preferred that structure be that shell includes upper casing and the lower casing suitable with upper casing；Wherein, upper casing is half envelope
Closing cylinder-like structure, lower casing is fixed on the open end of upper casing；Electric connection board is fixed on the medial wall of lower casing, and dodges permanent magnet and set
Put.
Furthermore it is preferred that structure be to be combined with buffer structure on the end face of lower casing corresponding mass block direction of vibration.
Furthermore it is preferred that structure be that the magnetizing direction of permanent magnet is that Z-direction magnetizes, two permanent magnets being provided adjacent to adjacent
End opposite polarity, the direction of winding of coil is vertical with the magnetizing direction of permanent magnet.
Furthermore it is preferred that structure be that mass is tungsten steel block, nickel steel block or tungsten nickel block.
Knowable to technical scheme above, linear vibration motor of the present utility model, conductive magnetic yoke and shell fragment are set to one
Structure, using conductive magnetic yoke as the fixing end of shell fragment, it is possible to increase the utilization rate in magnetic circuit space, removes between conductive magnetic yoke and coil
Gap, prevents from occurring therebetween grazing, improves the stability of linear vibration motor, simple in construction, applied widely.
Accompanying drawing explanation
By with reference to below in conjunction with the explanation of accompanying drawing and the content of claims, and along with to of the present utility model more
Understanding, other purpose of the present utility model and result will be more apparent and should be readily appreciated that comprehensively.In the accompanying drawings:
Fig. 1 is the decomposition texture of the linear vibration motor according to this utility model embodiment；
Fig. 2 is the cross-section structure of the linear vibration motor according to this utility model embodiment；
Fig. 3-1 is the elastic piece structure schematic diagram according to this utility model embodiment；
Fig. 3-2 is the shell fragment profile according to this utility model embodiment；
Fig. 3-3 is the shell fragment top view according to this utility model embodiment；
Fig. 4-1 is the elastic piece structure schematic diagram according to this utility model embodiment two；
Fig. 4-2 is the shell fragment profile according to this utility model embodiment two；
Fig. 4-3 is the shell fragment top view according to this utility model embodiment two.
Reference therein includes: upper casing 1, permanent magnet 21, permanent magnet 22, mass 3, shell fragment 4, fixing seat 41, bullet
Property linking arm 42, fixing end 43, vertical side 431, horizontal sides 432, coil 5, electric connection board 6, lower casing 7, escape groove 8.
The most identical label indicates similar or corresponding feature or function.
Detailed description of the invention
" mass " used in the description of following detailed description of the invention may also be referred to as " balancing weight ", refers both to and produces
The vibrating mass of raw vibration is fixing to strengthen the high-quality of vibration balancing, high desnity metal block.It addition, invention is mainly used in miniature shaking
The improvement of dynamic motor, but also it is not excluded for the technology in invention is applied to large-scale vibrating motor.But for the convenience stated,
In the description of the embodiments below, " linear vibration motor " is identical with the implication that " vibrating motor " represents.
For describing the linear vibration motor structure of this utility model embodiment in detail, new to this practicality below with reference to accompanying drawing
The specific embodiment of type is described in detail.
Fig. 1 and Fig. 2 respectively illustrates decomposition texture and the section of the linear vibration motor according to this utility model embodiment
Structure.
As Fig. 1 and Fig. 2 jointly shown in, the linear vibration motor of this utility model embodiment, including shell, be housed in shell
Interior vibrational system and magnetic circuit system；Wherein, vibrational system include the mass 3 of loop configuration, cylindrical-shaped structure permanent magnet with
And the shell fragment 4 of disk-like structure, magnetic circuit system includes conductive magnetic yoke and coil 5；Mass 3 is fixing in the enclosure by shell fragment 4, shell fragment
The vibration that 4 is mass 3 provides elastic restoring force.
Specifically, shell fragment 4 is disc-shaped structure, including fix with shell be connected fixing seat 41, in cylinder cap-like structure
Fixing end 43 and the resilient attachment arms 42 between fixing seat 41 and fixing end 43, the radius of fixing seat 41 is more than fixing end
The radius of 43；Permanent magnet is two pieces, including the permanent magnetism arranging and being scheduled on shell the upper side and lower side along linear vibration motor Z-direction
Ferrum 21,22, coil 5 is set in the outside of the abutting end of two block permanent magnets 21,22, and and two block permanent magnets 21,22 between exist
Gap, mass 3 is set in the outside of coil 5 and fits fixing by fixing end 43 and coil 5, and the laminating of i.e. fixing end 43 is online
Between circle 5 and mass 3.
Wherein, shell fragment 4 and conductive magnetic yoke are set to integrative-structure, and the fixing end 43 of shell fragment 4 is magnetic conduction in this embodiment
Fixing end 43 and the conductive magnetic yoke of yoke, i.e. loop configuration are same structure.
In a detailed description of the invention of the present utility model, linear vibration motor and shell thereof are circular configuration, and two
Block permanent magnet 21,22 is separately fixed at the circle centre position of two medial walls corresponding to shell upper-lower position.Mass 3, fixing end 43, line
The axle center of circle 5 and permanent magnet 21,22 is located on the same line, and permanent magnet 21,22 is fixed on transfixion on shell, is set in
Outside permanent magnet 21,22 and keep with it coil 5 of certain distance and mass 3 under the effect of shell fragment 4, along linear oscillator horse
The Z-direction up-down vibration reached.
Fig. 3-1 to Fig. 3-3 shows the linear vibration motor according to this utility model embodiment the most from different perspectives
Elastic piece structure.
Common shown in conjunction with Fig. 1 to Fig. 3-3, the shell fragment 4 in this embodiment of this utility model is disc-shaped structure, fixing
End 43 cross section be " L " shape bending structure, including vertical side 431 and with the vertical vertically disposed horizontal sides of side 431
432, vertical side 431 encloses side in being fitted in mass 3, horizontal sides 432 is buckled on the end face of mass 3；Fixing end 43
Inside enclose side to fit with coil.Wherein, fixing end 43 is conductive magnetic yoke, or is welded by the resilient attachment arms 42 of conductive magnetic yoke with shell fragment 4
Connect fixing, form the integrative-structure of conductive magnetic yoke and shell fragment 4.
Specifically, the inner diameter values of fixing end 43 is equal to the external diameter value of coil 5, and the external diameter value of fixing end 43 is then equal to mass
The inner diameter values of 3, thus conductive magnetic yoke (fixing end 43) is embedded between coil 5 and mass 3.It is positioned at two pieces inside coil 5
The magnetizing direction of permanent magnet 21,22 is Z-direction and magnetizes, the abutting end opposite polarity of two permanent magnets being provided adjacent to, coil 5 around
Line direction is vertical with the magnetizing direction of permanent magnet or the axial direction of coil 5 and the magnetizing direction of permanent magnet consistent.
In another detailed description of the invention of the present utility model, shell includes upper casing 1 and lower casing 7, the upper casing 1 of adaptive connection
For semiclosed cylinder-like structure, lower casing 7 is fixed at the open end of upper casing 1, and electric connection board 6 is fixed on the medial wall of lower casing 7, and
Dodging two block permanent magnets to arrange, upper casing 1 and lower casing 7 are collectively forming collecting vibrational system and the receiving space of magnetic circuit system, permanent magnetism
Ferrum 21,22 correspondence is fixed on upper casing 1 and the center of lower casing 7, and coil 5 and mass 3 in addition to permanent magnet then pass through bullet
Sheet 4 is connected with upper casing 1 elasticity.
The linear vibration motor of this utility model embodiment, also includes electric connection board 6 or the flexible circuitry of arcuate structure
Plate (PFCB), electric connection board 6 is fixed on shell, is provided with and the pad of coil 5 conducting, by being electrically connected on electric connection board 6
Circuit realiration linear vibration motor on fishplate bar 6 and the connection of external circuit；Wherein, electric connection board 6 can be by the side of buckle
Formula is fixed with shell.
Additionally, be vibration sense and the vibration balancing of mass 3 strengthening linear vibration motor, mass 3 can use wolfram steel
Block or nickel steel block or the contour density-metal material of nickel tungsten are made, and strengthen mass vibration force, make the vibration of electronic product
More intensive.
For convenience of the machine-shaping of shell fragment, and the gluing of coil 5 is fixed, in another specific embodiment party of the present utility model
In formula, fixing end 43 is evenly arranged with escape groove structure.Specifically, Fig. 4-1 to Fig. 4-3 shows the most from different perspectives
Elastic piece structure according to this utility model embodiment two.
Common shown in conjunction with Fig. 1 to Fig. 4-3, the shell fragment in this embodiment two is on the basis of above-described embodiment, fixing
It is evenly arranged with escape groove 8 on end 43.In this embodiment two, shell fragment includes fixing seat 41, fixing end 43 and connects fixing
Seat 41 and the resilient attachment arms 42 of fixing end 43, be provided with escape groove 8 at three on fixing end 43, it is known that, in actual applications,
Number and the width of escape groove of escape groove 8 can be set according to the size of shell fragment and structure choice.
Wherein, the fixing end 43 at shell fragment 4 arranges escape groove and is conducive to the machine-shaping of shell fragment, it is possible to by escape groove pair
Shell fragment carries out being accurately positioned and aligning, additionally it is possible to be easy to fix the gluing of coil 5, reduces the difficult processing of shell fragment
Degree, the assembly precision of raising shell fragment.Wherein, the inner diameter values of the fixing end 43 being provided with escape groove 8 is also equal to the external diameter of coil 5
Value, the external diameter value of fixing end 43 then equal to the inner diameter values of mass, thus fixing end 43 is embedded coil 5 and mass it
Between.
In another detailed description of the invention of the present utility model, for avoiding mass to touch with shell in vibration processes
Hit, the end face of lower casing corresponding mass block direction of vibration also incorporates buffer structure.This buffer structure can be foam, silica gel
Pad or rubber blanket etc., the vibration being mass by buffer structure provides cushion effect, and avoids itself and shell to collide, really
Protect performance and the shelf life of linear vibration motor.
By above-mentioned embodiment it can be seen that this utility model provide linear vibration motor, using conductive magnetic yoke as bullet
The fixing end of sheet, by the integrative-structure of conductive magnetic yoke Yu shell fragment, saves the gap between coil and conductive magnetic yoke, improves linear oscillator
The utilization rate in motor magnetic circuit space, it is to avoid the wiping between conductive magnetic yoke and coil is touched, is guaranteeing linear vibration motor stable performance
Meanwhile, reduce the difficulty of processing of shell fragment, increase substantially the production efficiency of product, applied widely.
Describe in an illustrative manner above with reference to accompanying drawing according to the linear vibration motor that the utility model proposes.But,
It will be appreciated by those skilled in the art that the linear vibration motor that above-mentioned this utility model is proposed, it is also possible to without departing from
Various improvement is made on the basis of this utility model content.Therefore, protection domain of the present utility model should be by appended right
The content of claim determines.
Claims (10)
1. a linear vibration motor, the vibrational system including shell, being housed in described shell and magnetic circuit system；Wherein, institute
State vibrational system and include mass, permanent magnet and shell fragment；Described magnetic circuit system includes conductive magnetic yoke and coil；It is characterized in that,
Described shell fragment includes fixing with described shell fixing seat, the fixing end in cylinder cap-like structure being connected and is positioned at described solid
Resilient attachment arms between reservation and fixing end；
Described permanent magnet is two pieces, arranges along described linear vibration motor Z-direction and fixes on the housing, described coil
Be set in the outside of two block permanent magnet abutting ends, and and two block permanent magnets between there is gap；
Described mass is set in outside described coil, encloses side with the peripheral side of described coil by described in described mass
Fixing end is fixing to be connected；
Described fixing end and described conductive magnetic yoke are same structure.
2. linear vibration motor as claimed in claim 1, it is characterised in that
Described shell is circular configuration, and described two block permanent magnets are separately fixed at two medial walls that described shell upper-lower position is corresponding
Circle centre position.
3. linear vibration motor as claimed in claim 1, it is characterised in that
The cross section of described fixing end is " L " shape bending structure, is vertically arranged including vertical side and with described vertical side
Horizontal sides, described vertical side encloses side in being fitted in described mass, described horizontal sides is buckled in the end face of described mass
On；
Enclose side in described fixing end to fit with described coil.
4. linear vibration motor as claimed in claim 1, it is characterised in that
Described permanent magnet is circular configuration；
The axle center of described mass, fixing end, coil and permanent magnet is located on the same line.
5. linear vibration motor as claimed in claim 1, it is characterised in that
Described fixing end is evenly arranged with escape groove structure.
6. linear vibration motor as claimed in claim 1, it is characterised in that also include fixing electrical connection on the housing
Plate；Wherein,
Described electric connection board is provided with the pad turned on described coil.
7. linear vibration motor as claimed in claim 6, it is characterised in that
Described shell includes upper casing and the lower casing suitable with upper casing；Wherein, upper casing is semiclosed cylinder-like structure, and lower casing is solid
It is scheduled on the open end of described upper casing；
Described electric connection board is fixed on the medial wall of described lower casing, and dodges the setting of described permanent magnet.
8. linear vibration motor as claimed in claim 7, it is characterised in that
The end face of the corresponding described mass direction of vibration of described lower casing is combined with buffer structure.
9. linear vibration motor as claimed in claim 1, it is characterised in that
The magnetizing direction of described permanent magnet is that Z-direction magnetizes, the abutting end opposite polarity of two permanent magnets being provided adjacent to, described coil
Direction of winding vertical with the magnetizing direction of described permanent magnet.
10. linear vibration motor as claimed in claim 1, it is characterised in that
Described mass is tungsten steel block, nickel steel block or tungsten nickel block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620517377.9U CN205753919U (en) | 2016-05-30 | 2016-05-30 | Linear vibration motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620517377.9U CN205753919U (en) | 2016-05-30 | 2016-05-30 | Linear vibration motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205753919U true CN205753919U (en) | 2016-11-30 |
Family
ID=57363248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620517377.9U Active CN205753919U (en) | 2016-05-30 | 2016-05-30 | Linear vibration motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205753919U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107147267A (en) * | 2017-05-18 | 2017-09-08 | 歌尔股份有限公司 | Linear vibration motor |
| CN110038772A (en) * | 2019-03-28 | 2019-07-23 | 武汉嘉晨汽车技术有限公司 | A kind of adhesive-spill-preventing fixed structure |
| CN110277891A (en) * | 2019-07-12 | 2019-09-24 | 哈朴铁石（上海）电子有限公司 | A kind of spring acoustical generator |
| CN113872409A (en) * | 2021-10-18 | 2021-12-31 | 浙江省东阳市东磁诚基电子有限公司 | Elastic sheet non-welding type vibration motor and implementation method thereof |
| CN110038772B (en) * | 2019-03-28 | 2024-04-26 | 武汉嘉晨汽车技术有限公司 | Anti-overflow glue fixed knot constructs |
-
2016
- 2016-05-30 CN CN201620517377.9U patent/CN205753919U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107147267A (en) * | 2017-05-18 | 2017-09-08 | 歌尔股份有限公司 | Linear vibration motor |
| CN107147267B (en) * | 2017-05-18 | 2023-11-24 | 歌尔股份有限公司 | Linear vibration motor |
| CN110038772A (en) * | 2019-03-28 | 2019-07-23 | 武汉嘉晨汽车技术有限公司 | A kind of adhesive-spill-preventing fixed structure |
| CN110038772B (en) * | 2019-03-28 | 2024-04-26 | 武汉嘉晨汽车技术有限公司 | Anti-overflow glue fixed knot constructs |
| CN110277891A (en) * | 2019-07-12 | 2019-09-24 | 哈朴铁石（上海）电子有限公司 | A kind of spring acoustical generator |
| CN113872409A (en) * | 2021-10-18 | 2021-12-31 | 浙江省东阳市东磁诚基电子有限公司 | Elastic sheet non-welding type vibration motor and implementation method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |