CN106300867B - Linear vibration motor - Google Patents
Linear vibration motor Download PDFInfo
- Publication number
- CN106300867B CN106300867B CN201610736704.4A CN201610736704A CN106300867B CN 106300867 B CN106300867 B CN 106300867B CN 201610736704 A CN201610736704 A CN 201610736704A CN 106300867 B CN106300867 B CN 106300867B
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- China
- Prior art keywords
- magnet steel
- mass block
- block
- vibration motor
- pole piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 69
- 239000010959 steel Substances 0.000 claims abstract description 69
- 238000003466 welding Methods 0.000 claims abstract description 10
- 230000003287 optical effect Effects 0.000 claims abstract description 9
- 230000010355 oscillation Effects 0.000 abstract description 3
- 239000002184 metal Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/02—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
- H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The present invention relates to a kind of linear vibration motors, it includes a upper casing, one lower casing, one superior pole piece, an at least mass block, an at least magnet steel, a pair of of elastic supporting member for supporting optical member, an at least coil and a circuit board, the upper casing and lower casing surround an accommodating space jointly, the magnet steel, which is fixed on mass block, forms a vibrator component, vibrator component support is suspended on accommodating space by the elastic supporting member for supporting optical member, the coil is welded on circuit board downwards, and it is located at below magnet steel, the mass block includes a centroplasm gauge block and the both sides mass block at left and right sides of centroplasm gauge block, the downwardly projecting both sides mass block is more than centroplasm gauge block, the superior pole piece laser welding is in the upper surface of centroplasm gauge block and both sides mass block, be conducive to the confined space using accommodating space, increase the weight of side mass block, promote straight-line oscillation horse The vibration sense reached.
Description
Technical field
The present invention relates to a kind of linear vibration motor more particularly to a kind of straight-line oscillation horses with coil and mass block
It reaches.
Background technique
With the development of electronic technology, the incoming call silent alert of mobile communication terminal such as mobile phone etc. is needed by fuselage
Alerting by vibration user, and generate vibration component be built-in miniature linear vibration motor, in addition vibrator for massage etc. is small
The core devices of type medical health equipment are also built-in miniature linear vibration motor.
The prior art relevant to this case can announce a kind of straight line vibration of No. 201577015 exposure with reference to Chinese patent
Dynamic motor comprising upper casing, pedestal, coil, mass block, magnet steel, metal clips and circuit board.Shape between upper casing and pedestal
At an accommodating space, coil, mass block, magnet steel and metal clips are contained in the accommodating space, and pedestal includes several side walls and hangs down
The direct-connected bottom wall for connecing side wall.Metal clips is equipped with the fixed part being positioned on side wall and the engagement being fixed together with mass block
Portion.Mass block together with magnet steel by metal clips vacantly in accommodating space, magnet steel is set as two, and mass block is equipped with fixed magnetic
Two through-holes of steel, coil are located at below magnet steel, are welded on circuit board, circuit board is fixed on bottom wall.When coil connection is outer
After portion's alternating current, mass block and magnet steel do oscillation crosswise in accommodating space, and metal clips is constantly compressed and discharged, and realize
The function of linear vibration motor.
Summary of the invention
The object of the present invention is to provide a kind of with the linear vibration motor for promoting vibration sense.
To realize foregoing purpose, the present invention adopts the following technical scheme: a kind of linear vibration motor comprising machine on one
Shell, a lower casing, a superior pole piece, at least a mass block, at least a magnet steel, a pair of of elastic supporting member for supporting optical member, at least a coil and an electricity
Road plate, the upper casing and lower casing surround an accommodating space jointly, and the magnet steel, which is fixed on mass block, forms an oscillator group
Vibrator component support is suspended on accommodating space by part, the elastic supporting member for supporting optical member, and the coil is welded on circuit board downwards, and
Below magnet steel, the mass block includes a centroplasm gauge block and the both sides mass block at left and right sides of centroplasm gauge block,
The downwardly projecting both sides mass block is more than centroplasm gauge block, and the superior pole piece laser welding is in centroplasm gauge block and both sides quality
The upper surface of block.
As a further improvement of the present invention, the upper surface of the both sides mass block and centroplasm gauge block tends to be coplanar.
As a further improvement of the present invention, the vibrator component includes an inferior pole piece, the left back both ends of the inferior pole piece
It is welded on the mass block of side, the lower surface of the side mass block is equipped with the groove of receiving inferior pole piece.
As a further improvement of the present invention, the linear vibration motor further includes being fixed on accommodating space and being located to be somebody's turn to do
A bracket between the mass block of both sides, the coil and circuit board are fixed on bracket, form stator group part.
As a further improvement of the present invention, the bracket includes bottom plate and is folded upward at extension from bottom plate left and right ends
A pair of side plates, the coil and circuit board are between bottom plate and side plate.
As a further improvement of the present invention, the bottom plate is equipped with upper and lower perforative aperture, and the left and right ends of aperture are run through
Side plate, the thickness and width of the inferior pole piece are respectively smaller than the thickness and width of aperture, and inferior pole piece passes through between the aperture, with bracket
Gap cooperation, the left and right ends of inferior pole piece protrude out bracket and are welded in the lower surface of side mass block.
As a further improvement of the present invention, the stator module further include be clamped in it is padded between bottom plate and circuit board
Piece.
As a further improvement of the present invention, if the upper casing includes roof and the dry side that extends downwardly from roof periphery
Wall, the side wall are supported on lower casing downwards, and the lower casing is horizontal structure, and the bottom plate laser welding is in lower casing
On.
As a further improvement of the present invention, the centroplasm gauge block is equipped with a fixation hole, and the magnet steel includes along left and right
A big magnet steel, a pair of of center magnet steel and a pair of small magnet steel that direction is arranged in a row and is fixed in the fixation hole jointly, big magnet steel
The pole S be located at upper end, the pole N is located at lower end；Wherein the pole N of a center magnet steel is located at left end, and the pole S is located at right end, and another center
The pole S of magnet steel is located at left end, and the pole N is located at right end；The pole N of small magnet steel is located at upper end, and the pole S is located at lower end.
As a further improvement of the present invention, the big magnet steel is located at this between the magnet steel of center, big magnet steel and the centering
Heart magnet steel is located at this between small magnet steel.
The mass block of linear vibration motor of the present invention is comprising a centroplasm gauge block and positioned at centroplasm gauge block left and right ends
Both sides mass block, the downwardly projecting both sides mass block is more than centroplasm gauge block, and the superior pole piece laser welding is in center mass
The upper surface of block and both sides mass block is conducive to the confined space using accommodating space, increases the weight of side mass block, is promoted straight
The vibration sense of linearly coupled motor.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of linear vibration motor of the present invention.
Fig. 2 is the stereoscopic schematic diagram of another angle of linear vibration motor of the present invention.
Fig. 3 is cross-sectional view of the Fig. 1 along the direction c-c.
Fig. 4 is the stereogram exploded view of linear vibration motor of the present invention.
Fig. 5 is the stereoscopic schematic diagram of linear vibration motor of the present invention, does not show upper casing and lower casing.
Fig. 6 is the view of another angle of Fig. 5.
Fig. 7 is the stereoscopic schematic diagram of linear vibration motor of the present invention, for display upper casing, lower casing and elastic support sheet.
Fig. 8 is the mutually matched plan view of each magnet steel of linear vibration motor of the present invention.
Fig. 9 is mutually matched plan view between linear vibration motor superior pole piece of the present invention, inferior pole piece, coil pole magnet steel,
The magnetic line of force is shown simultaneously.
Specific embodiment
It please refers to shown in Fig. 1 to Fig. 9, linear vibration motor 100 of the present invention includes upper casing 11, lower casing 12, superior pole piece
21, inferior pole piece 22, centroplasm gauge block 31, side mass block 32, big magnet steel 41, center magnet steel 42, small magnet steel 43, elastic supporting member for supporting optical member
50, bracket 60, padded 70, circuit board 80 and coil 90.Superior pole piece 21, inferior pole piece 22, centroplasm gauge block 31, side mass block
32, big magnet steel 41, center magnet steel 42 and small magnet steel 43 form vibrator component, bracket 60, padded 70, circuit board 80 and coil 90
Stator module is formed, when linear vibration motor 100 works, vibrator component realizes straight line relative to stator module side-to-side vibrations
The function of vibrating motor 100.
An accommodating space 110 is surrounded by between upper casing 11 and lower casing 12, upper casing 11 includes roof 111 and vertically connects
Several side walls 112 of roof 111 are connect, lower casing 12 is horizontal plate structure, covers the bottom of accommodating space 110, each side wall 112
It is supported on lower casing 12 downwards, and is integrally fixed using laser welding.Lower casing 12 has forwardly convex in side wall 112
A supporting plate 120, to place circuit board 80, side wall 112 is equipped with the opening 113 for being located at 120 top of supporting plate.
Superior pole piece 21 and inferior pole piece 22 are horizontal positioned, are parallel to each other.Centroplasm gauge block 31, side mass block 32, big magnet steel 41,
Center magnet steel 42 and small magnet steel 43 are clamped and fastened on jointly between superior pole piece 21 and inferior pole piece 22, are reduced the magnetic line of force and are dispersed into straight line
100 outside of vibrating motor.
Centroplasm gauge block 31 is also horizontally arranged, and is equipped with a upper and lower perforative fixation hole 310.Side mass block 32 is set as one
It is right, it is fixed on the left and right sides of centroplasm gauge block 31, mutually by sticking together, the upper surface of three tends to be coplanar.Side mass block
32 thickness is greater than the thickness of centroplasm gauge block 31, and downwardly projecting is more than centroplasm gauge block 31, is designed in this way, and is conducive to utilize receipts
Hold the confined space in space 110, increase the weight of side mass block 32, promotes the vibration sense of linear vibration motor 100.
Big magnet steel 41 is set as one, and center magnet steel 42 and small magnet steel 43 are respectively set to a pair, the pole the S position of big magnet steel 41
In upper end, the pole S is located at lower end, wherein the pole the N position left end of a center magnet steel 42, the pole S are located at right end, and another center magnet steel 42
The pole S is located at left end, and the pole N is located at right end, and the pole N of two small magnet steel 43 is located at upper end, and the pole S is located at lower end.Five magnet steel 41,42,43
It is arranged in a row, is fixed in the fixation hole 310 of centroplasm gauge block 31 jointly in left-right direction, specifically, big magnet steel 41 is fixed
This between center magnet steel 42, big magnet steel 41 and this this is fixed on between small magnet steel 43 to center magnet steel 42.Please refer to Fig. 8
Shown, the magnetic line of force is more concentrated, and magnetic leaks less, improves long-range navigation magnetic force, is strengthened the driving force of oscillator, is improved vibration sense.
Elastic supporting member for supporting optical member 50 is set as a pair of, and each elastic supporting member for supporting optical member 50 is in U-shape in the up-down direction comprising is set to two
Abutting end 51, fixing end 52 and the U-shaped interconnecting piece 53 for connecting abutting end 51 and fixing end 52 of end.Abutting end 51 and Bian Zhiliang
Block 32 is fixed together by laser welding, and fixing end 52 is fixed on 11 side wall of upper casing, 112 inner surface, bullet by laser welding
Property supporting element 50 is by vibrator component flying shore in accommodating space 110.It is strong to increase abutting end 51 and the structure of fixing end 52
Degree, prevents from being broken off, and the outer surface of abutting end 51 and fixing end 52 is also respectively welded metal reinforcement strip 54, and abutting end 51 is fixed
Between side mass block 32 and reinforced sheet 54, fixing end 52 is fixed between side wall 112 and reinforced sheet 54.
Bracket 60 is in U-shape in front-rear direction comprising a bottom plate 61 and is folded upward at extension from 61 left and right ends of bottom plate
A pair of side plates 62, bottom plate 61 are equipped with about one aperture 610 for running through bottom plate 61, and the left and right ends of aperture 610 also extend through the opposite side
Plate 62, bottom plate 61 are fixed on 12 inner surface of lower casing by laser welding.The thickness and width of inferior pole piece 22 are respectively smaller than aperture
610 thickness and width, inferior pole piece 22 pass through the aperture 610, and with 60 clearance fit of bracket, left and right ends protrude out bracket 60,
It is welded in 32 lower surface of side mass block, mass block 32 lower surface in side is equipped with the groove 320 of receiving inferior pole piece 22.
It is set as the two-part construction that time interval is opened for padded 70, fixes on bottom plate 61, positioned at the front and back of aperture 610 two
Side.
Circuit board 80 is printed circuit board (PCB) or flexible circuit board (FPC), is held downwardly in padded by double-sided adhesive
On 70, the height of circuit board 80 is increased by padded 70, inferior pole piece 22 is effectively avoided to touch circuit board 80, improves oscillator
Vibration efficiency.Circuit board 80 has the tail portion 81 protruded out forward, and tail portion 81 passes through the opening of upper casing 11 113, and is supported in down
On 12 supporting plate 120 of casing, to connect external power supply.
Coil 90 is set as two, and a up time needle thread loop, another is counter-clockwise coil, and two coils 90 are in left-right direction
It is welded on circuit board 80, coil 90 and bracket 60 are co-located at centroplasm gauge block 31, big magnet steel 41, center magnet steel 42 and small magnetic
The lower section of steel 43, and be spaced apart.
Linear vibration motor 100 of the present invention is fixed on bracket 60, bracket by setting bracket 60, circuit board 80 and coil 90
60 are fixed on again in the accommodating space 110 of upper casing 11, lower casing 12, realize modularity assembling, reduce assembling difficulty, raising group
Precision and production efficiency are filled, cost is reduced.
Although for illustrative purposes, the preferred embodiment of the present invention is had been disclosed, but the ordinary skill people of this field
Member will realize without departing from the scope and spirit of the invention as disclosed by the appended claims, various to change
Into, increase and replace be possible.
Claims (7)
1. a kind of linear vibration motor comprising a upper casing, a lower casing, a superior pole piece, an at least mass block, at least a magnetic
Steel, a pair of of elastic supporting member for supporting optical member, at least a coil and a circuit board, the upper casing and lower casing surround an accommodating space jointly,
The magnet steel, which is fixed on mass block, forms a vibrator component, and vibrator component support is suspended on receiving sky by the elastic supporting member for supporting optical member
Between, the coil is welded on circuit board downwards, and is located at below magnet steel, it is characterised in that: the mass block includes in one
Heart mass block and the both sides mass block at left and right sides of centroplasm gauge block, the downwardly projecting both sides mass block is more than centroplasm
Gauge block, the superior pole piece laser welding are also wrapped in the upper surface of centroplasm gauge block and both sides mass block, the linear vibration motor
It includes and is fixed on accommodating space and the bracket between the both sides mass block, the coil and circuit board are fixed on bracket
On, stator group part is formed, the bracket includes bottom plate and is folded upward at a pair of side plates of extension from bottom plate left and right ends, described
Coil and circuit board between bottom plate and side plate, the stator module further include be clamped in it is padded between bottom plate and circuit board
Piece.
2. linear vibration motor according to claim 1, it is characterised in that: the both sides mass block and centroplasm gauge block
Upper surface tends to be coplanar.
3. linear vibration motor according to claim 1, it is characterised in that: the vibrator component includes an inferior pole piece, institute
The left back both ends for stating inferior pole piece are welded on the mass block of side, and the lower surface of the side mass block is equipped with the groove of receiving inferior pole piece.
4. linear vibration motor according to claim 3, it is characterised in that: the bottom plate is equipped with upper and lower perforative aperture,
Side plate is run through in the left and right ends of aperture, and the thickness and width of the inferior pole piece are respectively smaller than the thickness and width of aperture, inferior pole piece
Across the aperture, cooperate with standoff gap, the left and right ends of inferior pole piece protrude out bracket and are welded in the lower surface of side mass block.
5. linear vibration motor according to claim 1, it is characterised in that: the upper casing include roof and from roof week
Several side walls that edge extends downwardly, the side wall are supported on lower casing downwards, and the lower casing is horizontal structure, the bottom
Plate laser welding is on lower casing.
6. linear vibration motor according to claim 1, it is characterised in that: the centroplasm gauge block is equipped with a fixation hole,
The magnet steel include the big magnet steel for being arranged in a row and being fixed in the fixation hole jointly in left-right direction, a pair of of center magnet steel and
A pair of small magnet steel, the pole S of big magnet steel are located at upper end, and the pole N is located at lower end；Wherein the pole N of a center magnet steel is located at left end, the pole S position
In right end, and the pole S of another center magnet steel is located at left end, and the pole N is located at right end；The pole N of small magnet steel is located at upper end, under the pole S is located at
End.
7. linear vibration motor according to claim 6, it is characterised in that: the big magnet steel be located at this to center magnet steel it
Between, big magnet steel and this this is located between small magnet steel to center magnet steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610736704.4A CN106300867B (en) | 2016-08-26 | 2016-08-26 | Linear vibration motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610736704.4A CN106300867B (en) | 2016-08-26 | 2016-08-26 | Linear vibration motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106300867A CN106300867A (en) | 2017-01-04 |
| CN106300867B true CN106300867B (en) | 2019-06-28 |
Family
ID=57676878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610736704.4A Active CN106300867B (en) | 2016-08-26 | 2016-08-26 | Linear vibration motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106300867B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207150386U (en) * | 2017-01-24 | 2018-03-27 | 四川安和精密电子电器有限公司 | A kind of linear vibration motor |
| CN108306475A (en) * | 2018-03-06 | 2018-07-20 | 昆山联滔电子有限公司 | Linear vibration motor |
| CN112838783B (en) * | 2021-01-07 | 2023-04-25 | 歌尔微电子股份有限公司 | Piezoelectric vibration motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545531A (en) * | 2010-11-15 | 2012-07-04 | Smc株式会社 | Linear actuator |
| CN204886634U (en) * | 2015-07-30 | 2015-12-16 | 瑞声光电科技(常州)有限公司 | Oscillating motor |
| CN205544864U (en) * | 2016-01-19 | 2016-08-31 | 瑞声光电科技(常州)有限公司 | Vibration motor |
| CN205986580U (en) * | 2016-08-26 | 2017-02-22 | 昆山联滔电子有限公司 | Straight -line vibrating motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101062972B1 (en) * | 2009-07-20 | 2011-09-07 | 삼성전기주식회사 | Integrated magnet and linear vibration motor with it |
-
2016
- 2016-08-26 CN CN201610736704.4A patent/CN106300867B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545531A (en) * | 2010-11-15 | 2012-07-04 | Smc株式会社 | Linear actuator |
| CN204886634U (en) * | 2015-07-30 | 2015-12-16 | 瑞声光电科技(常州)有限公司 | Oscillating motor |
| CN205544864U (en) * | 2016-01-19 | 2016-08-31 | 瑞声光电科技(常州)有限公司 | Vibration motor |
| CN205986580U (en) * | 2016-08-26 | 2017-02-22 | 昆山联滔电子有限公司 | Straight -line vibrating motor |
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| Publication number | Publication date |
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| CN106300867A (en) | 2017-01-04 |
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