CN205986581U - Straight -line vibrating motor - Google Patents

Straight -line vibrating motor Download PDF

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Publication number
CN205986581U
CN205986581U CN201620957164.8U CN201620957164U CN205986581U CN 205986581 U CN205986581 U CN 205986581U CN 201620957164 U CN201620957164 U CN 201620957164U CN 205986581 U CN205986581 U CN 205986581U
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CN
China
Prior art keywords
magnet steel
mass
vibration motor
linear vibration
pole
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.)
Expired - Fee Related
Application number
CN201620957164.8U
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Chinese (zh)
Inventor
李栋
李孟昭
陈强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kunshan Liantao Electronics Co Ltd
Original Assignee
Kunshan Liantao Electronics Co Ltd
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Priority to CN201620957164.8U priority Critical patent/CN205986581U/en
Application granted granted Critical
Publication of CN205986581U publication Critical patent/CN205986581U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

The utility model relates to a straight -line vibrating motor, it includes an upper casing, a lower casing, an at least quality piece, a plurality of magnet steel, a pair of elastic support elements, an at least coil and a circuit board, the upper casing encloses into an accommodating space with the lower casing jointly, a plurality of magnet steel are fixed in constitutes an oscillator assembly on the quality piece, elastic support elements supports oscillator assembly unsettled in accommodating space, coil downward welding lies in on the circuit board, the quality piece is equipped with a fixed orifices, the magnet steel contains along left right direction lines up one row and be fixed in a big magnet steel, a center align magnet steel and a pair of little magnet steel of fixed orifices jointly, improves the drive power of vibration, the sense of shaking of reinforcing motor.

Description

Linear vibration motor
Technical field
This utility model is related to a kind of linear vibration motor, more particularly, to a kind of straight-line oscillation horse with coil and magnet steel Reach.
Background technology
With the development of electronic technology, the incoming call silent alert of mobile communication terminal such as mobile phone etc., need by fuselage Alerting by vibration user, and the part producing vibration is built-in miniature linear vibration motor, and in addition vibromasseur etc. is little The core devices of type medical health equipment are also built-in miniature linear vibration motor.
The prior art related to this case may be referred to Chinese patent announce No. 201577015 exposure a kind of straight line shake Dynamic motor, it includes upper casing, pedestal, coil, mass, magnet steel, metal clips and circuit board.Shape between upper casing and pedestal Become a receiving space, coil, mass, magnet steel and metal clips are contained in this receiving space, if pedestal includes dry side wall and hangs down The diapire of straight connecting side wall.Metal clips is provided with the fixed part being positioned on the wall of side and the joint being fixed together with mass Portion.Mass together with magnet steel by metal clips vacantly in receiving space, magnet steel is set to two, and mass is provided with fixing magnetic Two through holes of steel, coil is located at below magnet steel, is welded on circuit board, circuit board is fixed on diapire.When coil connection is outer After portion's alternating current, mass and magnet steel do oscillation crosswise in receiving space, and metal clips is constantly compressed and discharges, and realize The function of linear vibration motor.
Utility model content
The purpose of this utility model there are provided a kind of linear vibration motor having and improving vibratory drive power.
For realizing object defined above, this utility model adopts the following technical scheme that:A kind of linear vibration motor, it is included on one Casing, a lower casing, at least one mass, some magnet steel, a pair of elastic supporting member for supporting optical member, at least one coil and a circuit board, described Upper casing and lower casing surround a receiving space jointly, and described some magnet steel are fixed on mass and form a vibrator component, institute State elastic supporting member for supporting optical member and vibrator component support is suspended on receiving space, welding is on circuit board described coil downwards, and position Below magnet steel, described mass is provided with a fixing hole, and described magnet steel comprises to be arranged in a row in left-right direction and be jointly fixed on One big magnet steel of fixing hole, a pair of center magnet steel and little a pair magnet steel, described big magnet steel be located at this to center magnet steel between, big magnetic Gang Hegaidui center magnet steel be located at this to little magnet steel between, the S pole of described big magnet steel is located at upper end, and S pole is located at lower end;Wherein one The N pole position left end of center magnet steel, S pole is located at right-hand member, and the S pole of another center magnet steel is located at left end, and N pole is located at right-hand member;Little magnet steel N pole be located at upper end, S pole be located at lower end.
As further improvement of the utility model, the thickness of described big magnet steel, center magnet steel and little magnet steel and width phase With.
As further improvement of the utility model, described linear vibration motor includes being welded on mass and each magnet steel The superior pole piece on surface.
As further improvement of the utility model, described vibrator component includes the inferior pole piece below superior pole piece, Described inferior pole piece is welded in mass lower surface, described big magnet steel, center magnet steel and little magnet steel be located at superior pole piece and inferior pole piece it Between.
As further improvement of the utility model, described mass comprises a centroplasm gauge block and is located at centroplasm gauge block The both sides mass at left and right two ends, described both sides mass is downwardly projecting to exceed centroplasm gauge block, described both sides mass with The upper surface of heart mass tends to coplanar, and described fixing hole is located at centroplasm gauge block.
As further improvement of the utility model, the left back two ends of described inferior pole piece are welded on the mass of side, described The lower surface of side mass is provided with the groove housing inferior pole piece.
As further improvement of the utility model, described linear vibration motor also includes being fixed on receiving space and position A support between this both sides mass, described coil and circuit board are fixed on support, form stator group part.
As further improvement of the utility model, described support include base plate and from about base plate two ends be folded upward at prolonging The a pair of side plates stretched, described coil and circuit board are located between base plate and side plate.
As further improvement of the utility model, described base plate is provided with the perforate running through up and down, the left and right two ends of perforate Run through side plate, the thickness of described inferior pole piece and width are respectively smaller than thickness and the width of perforate, inferior pole piece passes through this perforate, with Frame gap coordinates, and the left and right two ends of inferior pole piece protrude out support and are welded in the lower surface of side mass.
As further improvement of the utility model, described stator module also includes being clamped between base plate and circuit board Padded.
The magnet steel of this utility model linear vibration motor comprises to be arranged in a row in left-right direction and is jointly fixed on fixing hole A big magnet steel, a center magnet steel and little a pair magnet steel, described big magnet steel be located at this to center magnet steel between, big magnet steel and this is right Center magnet steel be located at this to little magnet steel between, the S pole of described big magnet steel is located at upper end, and S pole is located at lower end;Wherein one center magnet steel N pole position left end, S pole is located at right-hand member, and the S pole of another center magnet steel is located at left end, and N pole is located at right-hand member;The N pole of little magnet steel is located at Upper end, S pole is located at lower end, and the magnetic line of force promoting magnet steel overall is more concentrated, and reduces magnetic and leaks, improves long-range navigation magnetic force, strengthen The driving force of vibration, improves vibration sense.
Brief description
Fig. 1 is the schematic perspective view of this utility model linear vibration motor.
Fig. 2 is the schematic perspective view of another angle of this utility model linear vibration motor.
Fig. 3 is the sectional view along c-c direction for the Fig. 1.
Fig. 4 is the three-dimensional exploded view of this utility model linear vibration motor.
Fig. 5 is the schematic perspective view of this utility model linear vibration motor, does not show upper casing and lower casing.
Fig. 6 is the view of another angle of Fig. 5.
Fig. 7 is the schematic perspective view of this utility model linear vibration motor, for display upper casing, lower casing and resilient support Piece.
The plan view that Fig. 8 cooperates for each magnet steel of this utility model linear vibration motor.
Fig. 9 is that the plane cooperating between this utility model linear vibration motor superior pole piece, inferior pole piece, coil pole magnet steel regards Figure, shows the magnetic line of force simultaneously.
Specific embodiment
Refer to shown in Fig. 1 to Fig. 9, this utility model linear vibration motor 100 include upper casing 11, lower casing 12, on Pole piece 21, inferior pole piece 22, centroplasm gauge block 31, side mass 32, big magnet steel 41, center magnet steel 42, little magnet steel 43, resilient support Part 50, support 60, padded 70, circuit board 80 and coil 90.Superior pole piece 21, inferior pole piece 22, centroplasm gauge block 31, side mass 32nd, big magnet steel 41, center magnet steel 42 and little magnet steel 43 composition vibrator component, support 60, padded 70, circuit board 80 and coil 90 Composition stator module, during linear vibration motor 100 work, vibrator component is with respect to stator module side-to-side vibrationss it is achieved that straight line The function of vibrating motor 100.
It is surrounded by a receiving space 110, upper casing 11 includes roof 111 and vertically connects between upper casing 11 and lower casing 12 If connecing the dry side wall 112 of roof 111, lower casing 12 is horizontal platy structure, covers the bottom of receiving space 110, each side wall 112 It is supported on downwards on lower casing 12, and be integrally fixed using laser welding.Lower casing 12 have forwardly convex in side wall 112 A supporting plate 120, in order to place circuit board 80, side wall 112 is provided with the opening 113 positioned at supporting plate 120 top.
Superior pole piece 21 and inferior pole piece 22 horizontal positioned, are parallel to each other.Centroplasm gauge block 31, side mass 32, big magnet steel 41, Center magnet steel 42 and little magnet steel 43 are clamped and fastened between superior pole piece 21 and inferior pole piece 22 jointly, reduce the magnetic line of force and are dispersed into straight line Outside vibrating motor 100.
Centroplasm gauge block 31 also horizontal positioned, is provided with the fixing hole 310 running through up and down.Side mass 32 is set to one 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 coplanar.Side mass 32 thickness be more than centroplasm gauge block 31 thickness, downwardly projecting exceed centroplasm gauge block 31, be so designed that, be conducive to using receive Hold the confined space in space 110, increase the weight of side mass 32, the vibration sense of lifting linear vibration motor 100.
Big magnet steel 41 is set to one, and center magnet steel 42 and little magnet steel 43 are respectively set to a pair, the S pole position of big magnet steel 41 In upper end, N pole is located at lower end, the N pole position left end of wherein one center magnet steel 42, and S pole is located at right-hand member, and another center magnet steel 42 S pole is located at left end, and N pole is located at right-hand member, and the N pole of two little magnet steel 43 is located at upper end, and S pole is located at lower end.Five magnet steel 41,42,43 It is arranged in a row in left-right direction, is jointly fixed in the fixing hole 310 of centroplasm gauge block 31, specifically, big magnet steel 41 is fixing Between this is to center magnet steel 42, big magnet steel 41 and this center magnet steel 42 is fixed on this to little magnet steel 43 between.Refer to Fig. 8 Shown, the magnetic line of force is more concentrated, and it is less that magnetic leaks, and improves long-range navigation magnetic force, strengthens the driving force of oscillator, improves vibration sense.
Elastic supporting member for supporting optical member 50 is set to a pair, and each elastic supporting member for supporting optical member 50 takes the shape of the letter U in the vertical direction, and it is included located at two The abutting end 51 of end, fixing end 52 and the U-shaped connecting portion 53 connecting abutting end 51 and fixing end 52.Abutting end 51 and side quality Block 32 is fixed together by laser welding, and fixing end 52 is fixed on upper casing 11 side wall 112 inner surface, bullet by laser welding Property support member 50 is by vibrator component flying shore in receiving space 110.Strong with the structure of fixing end 52 for increasing abutting end 51 Degree, prevents from being broken off, and abutting end 51 is also respectively welded metal reinforcement strip 54 with the outer surface of fixing end 52, and abutting end 51 is fixing Between side mass 32 and reinforced sheet 54, fixing end 52 is fixed between side wall 112 and reinforced sheet 54.
Support 60 takes the shape of the letter U in fore-and-aft direction, and it includes a base plate 61 and is folded upward at extension from base plate 61 about two ends A pair of side plates 62, base plate 61 is provided with about one perforate 610 running through base plate 61, and the left and right two ends of perforate 610 also extend through this offside Plate 62, base plate 61 is fixed on lower casing 12 inner surface by laser welding.The thickness of inferior pole piece 22 and width are respectively smaller than perforate 610 thickness and width, inferior pole piece 22 passes through this perforate 610, coordinates with support 60 gap, and left and right two ends protrude out support 60, It is welded in side mass 32 lower surface, side mass 32 lower surface is provided with the groove 320 housing inferior pole piece 22.
It is set to the two-part construction that time interval is opened for padded 70, on fixing base plate 61, two before and after perforate 610 Side.
Circuit board 80 is printed circuit board (PCB)(PCB)Or flexible circuit board (FPC), it is held downwardly in padded by double faced adhesive tape On 70, by padded 70 height that increased circuit board 80, it is prevented effectively from inferior pole piece 22 and touches circuit board 80, improve oscillator Vibration efficiency.Circuit board 80 has the afterbody 81 protruding out forward, and afterbody 81 passes through upper casing 11 opening 113, and is supported in down On casing 12 supporting plate 120, in order to connect external power source.
Coil 90 is set to two, a up time needle thread loop, and another is counter-clockwise coil, and two coils 90 are in left-right direction It is welded on circuit board 80, coil 90 and support 60 are co-located at centroplasm gauge block 31, big magnet steel 41, center magnet steel 42 and little magnetic The lower section of steel 43, and be spaced apart.
This utility model linear vibration motor 100 passes through to arrange support 60, and circuit board 80 and coil 90 are fixed on support 60, Support 60 is fixed in the receiving space 110 of upper casing 11, lower casing 12 again, realizes modularity assembling, reduces assembling difficulty, carries High assembly precision and production efficiency, reduces cost.
Although being example purpose, have been disclosed for preferred implementation of the present utility model, the common skill of this area Art personnel by it is realized that disclosed in without departing from by appending claims scope and spirit of the present utility model situation Under, various improvement, increase and replacement are possible.

Claims (10)

1. a kind of linear vibration motor, it includes a upper casing, a lower casing, at least one mass, some magnet steel, a pair of elasticity Support member, at least one coil and a circuit board, described upper casing and lower casing surround a receiving space, described some magnet steel jointly It is fixed on mass and forms a vibrator component, described elastic supporting member for supporting optical member supports vibrator component and is suspended on receiving space, described Downwards welding is on circuit board coil, and is located at below magnet steel, described mass be provided with a fixing hole it is characterised in that: Described magnet steel comprises to be arranged in a row in left-right direction and be jointly fixed on a big magnet steel of fixing hole, a pair of center magnet steel and a pair Little magnet steel, described big magnet steel be located at this to center magnet steel between, big magnet steel and this to center magnet steel be located at this to little magnet steel between, The S pole of described big magnet steel is located at upper end, and S pole is located at lower end;The N pole position left end of wherein one center magnet steel, S pole is located at right-hand member, separately The S pole of one center magnet steel is located at left end, and N pole is located at right-hand member;The N pole of little magnet steel is located at upper end, and S pole is located at lower end.
2. linear vibration motor according to claim 1 it is characterised in that:Described big magnet steel, center magnet steel and little magnet steel Thickness identical with width.
3. linear vibration motor according to claim 1 it is characterised in that:Described linear vibration motor includes being welded in matter Gauge block and the superior pole piece of each magnet steel upper surface.
4. linear vibration motor according to claim 3 it is characterised in that:Described vibrator component is included under superior pole piece One inferior pole piece of side, described inferior pole piece is welded in mass lower surface, and described big magnet steel, center magnet steel and little magnet steel are located at upper pole Between piece and inferior pole piece.
5. linear vibration motor according to claim 4 it is characterised in that:Described mass comprise a centroplasm gauge block and The both sides mass at two ends about centroplasm gauge block, described both sides mass is downwardly projecting to exceed centroplasm gauge block, described Both sides mass tends to coplanar with the upper surface of centroplasm gauge block, and described fixing hole is located at centroplasm gauge block.
6. linear vibration motor according to claim 5 it is characterised in that:The left back two ends of described inferior pole piece are welded in side On mass, the lower surface of described side mass is provided with the groove housing inferior pole piece.
7. linear vibration motor according to claim 4 it is characterised in that:Described linear vibration motor also includes being fixed on Receiving space and the support between this both sides mass, described coil and circuit board are fixed on support, form one Stator module.
8. linear vibration motor according to claim 7 it is characterised in that:Described support includes base plate and from about base plate Two ends are folded upward at a pair of side plates extending, and described coil and circuit board are located between base plate and side plate.
9. linear vibration motor according to claim 8 it is characterised in that:Described base plate is provided with the perforate running through up and down, Side plate is run through at the left and right two ends of perforate, and the thickness of described inferior pole piece and width are respectively smaller than thickness and the width of perforate, inferior pole piece Through this perforate, with standoff gap cooperation, the left and right two ends of inferior pole piece protrude out support and are welded in the lower surface of side mass.
10. linear vibration motor according to claim 8 it is characterised in that:Described stator module also includes being clamped in bottom Between plate and circuit board padded.
CN201620957164.8U 2016-08-26 2016-08-26 Straight -line vibrating motor Expired - Fee Related CN205986581U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620957164.8U CN205986581U (en) 2016-08-26 2016-08-26 Straight -line vibrating motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620957164.8U CN205986581U (en) 2016-08-26 2016-08-26 Straight -line vibrating motor

Publications (1)

Publication Number Publication Date
CN205986581U true CN205986581U (en) 2017-02-22

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106300868A (en) * 2016-08-26 2017-01-04 昆山联滔电子有限公司 Linear vibration motor
CN111211661A (en) * 2020-02-25 2020-05-29 瑞声光电科技(常州)有限公司 Linear vibration motor
WO2022067919A1 (en) * 2020-09-29 2022-04-07 瑞声声学科技(深圳)有限公司 Linear motor and electronic device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106300868A (en) * 2016-08-26 2017-01-04 昆山联滔电子有限公司 Linear vibration motor
CN106300868B (en) * 2016-08-26 2018-11-02 昆山联滔电子有限公司 Linear vibration motor
CN111211661A (en) * 2020-02-25 2020-05-29 瑞声光电科技(常州)有限公司 Linear vibration motor
WO2022067919A1 (en) * 2020-09-29 2022-04-07 瑞声声学科技(深圳)有限公司 Linear motor and electronic device

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170222

Termination date: 20210826