CN101854108B - Linear type vibration motor - Google Patents
Linear type vibration motor Download PDFInfo
- Publication number
- CN101854108B CN101854108B CN2009102248617A CN200910224861A CN101854108B CN 101854108 B CN101854108 B CN 101854108B CN 2009102248617 A CN2009102248617 A CN 2009102248617A CN 200910224861 A CN200910224861 A CN 200910224861A CN 101854108 B CN101854108 B CN 101854108B
- Authority
- CN
- China
- Prior art keywords
- vibration motor
- weight assembly
- linear type
- type vibration
- elastic component
- 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
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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
- H02K33/04—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 wherein the frequency of operation is determined by the frequency of uninterrupted AC energisation
- H02K33/08—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 wherein the frequency of operation is determined by the frequency of uninterrupted AC energisation with DC energisation superimposed on AC energisation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H3/3042—Power arrangements internal to the switch for operating the driving mechanism using spring motor using a torsion spring
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/17—Stator cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
- H02K35/02—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The invention provides a linear vibration motor, including a housing for receiving a weight member including a recess; a movable member fixed on the weight member; a coil which is cooperated with an electromagnetic field to drive the movable member and the weight member to move together and in which current is flowing; a connecting member which has an end connected to the housing and another end extending to the recess and drive the recess; and elastic members which are respectively arranged on two sides of the connecting member in the recess and setting the boundary of the horizontal movement of the weight member.
Description
The application requires the priority at the 10-2009-0027304 korean patent application of Korea S Department of Intellectual Property submission on March 31st, 2009, by reference disclosing of this application is contained in this.
Technical field
The present invention relates to a kind of linear type vibration motor (linear vibration motor), more particularly, relate to a kind of being constructed to be installed in the personal portable terminals and the linear type vibration motor of along continuous straight runs (that is, along personal portable terminals vertically) vibration.
Background technology
Usually, receiving function is that communication equipment is prerequisite.Because have such receiving function, so export the sound output function of polyphonic ring tone or the tinkle of bells and the vibrating function of vibration equipment is used at large.
Specifically, vibrating function is mainly used in preventing that polyphonic ring tone or the tinkle of bells of the loud speaker output by communication equipment from bothering other people.In order to realize such vibrating function, drive undersized vibrating motor, so that its actuating force is passed to the housing of equipment, thereby make vibration equipment.
At present, be used to liquid crystal display (LCD) touch-screen of mobile phone, size reduction and quality have improved.This LCD touch-screen needs as vibrative function when being touched.So, improve vibrating motor and become more important.
The vibrating motor that is used at present mobile phone rotates the rotatable parts with uneven weight by the power of rotating, thereby obtains mechanical oscillation.In most of vibrating motors, by the contact between brush and the rectifier to the rotor coil rectification after, by electric current being applied to the rotor coil power that rotates.
The limitation that this brush-type structure of utilizing rectifier has is that when electric machine rotation brush causes mechanical friction and electric spark through the magnetic pole gap between each section of rectifier the time, thereby causes brush and rectifier wearing and tearing.This has shortened the useful life of motor.
In addition, owing to when voltage is applied to motor, utilized rotator inertia, thus need the time to reach the vibration of expectation, thus be difficult to realize be suitable for adopting the vibration of the personal portable terminals of touch-screen.
Summary of the invention
An aspect of of the present present invention provides a kind of linear type vibration motor that can vibrate one-dimensionally and reduce along straight line path the thickness of personal portable terminals.
According to an aspect of the present invention, provide a kind of linear type vibration motor, this linear type vibration motor comprises: housing will comprise that recessed weight assembly is contained in inside; Movable part is fixed to described weight assembly; Coil, electric current flow in coil, with the interaction by electromagnetic field described movable part are moved with described weight assembly; Connector has an end that is connected to described housing and the other end that extends to the female, and described connector drives the female; Elastic component is separately positioned on the both sides of the described connector in the female, and sets the boundary of the horizontal movement of described weight assembly.
Described movable part can comprise: magnet is provided for the magnetic force of the described horizontal movement of described weight assembly; Yoke is determined the direction of the described magnetic force of described magnet.
Described yoke can be arranged between described magnet and the described weight assembly.
Described linear type vibration motor also can comprise the both side surface that is arranged on described housing and be used for guiding the guide post of the motion path of described weight assembly.Described weight assembly can have corresponding with described guide post respectively gathering sill.
Each elastic component of described linear type vibration motor can be torsional spring.
Each elastic component of described linear type vibration motor can be leaf spring.
Each elastic component of described linear type vibration motor can be torsionspring.
Described weight assembly can have for described yoke being contained in inner holding portion.
Described linear type vibration motor also can comprise plate, and the top surface of described plate is electrically connected with described coil, and described coil can comprise a plurality of coils that are arranged on abreast on the described plate.
Description of drawings
The following detailed description of carrying out in conjunction with the drawings will be expressly understood above-mentioned and other aspect, characteristics and other advantage of the present invention more, in the accompanying drawing:
Fig. 1 illustrates the according to an exemplary embodiment of the present invention perspective view of linear type vibration motor.
Fig. 2 is the decomposition diagram of the linear type vibration motor of Fig. 1.
Fig. 3 is the diagram for the motion of the linear type vibration motor of key-drawing 1.
Fig. 4 is the perspective view for the supporting bracket of the linear type vibration motor of key-drawing 1.
Fig. 5 A to Fig. 5 C is be used to explaining the according to an exemplary embodiment of the present invention diagram of the motion of elastic component.
Fig. 6 is the perspective view of the linear type vibration motor of another exemplary embodiment according to the present invention.
Fig. 7 is for the perspective view of explaining the linear type vibration motor of another exemplary embodiment according to the present invention.
Embodiment
Now, describe with reference to the accompanying drawings exemplary embodiment of the present invention in detail.Yet the present invention can implement with multiple different form, and should not be interpreted as being confined to be set forth in this embodiment.On the contrary, provide these embodiment so that the disclosure will be thorough with completely, and scope of the present invention is conveyed to those skilled in the art fully.In the accompanying drawings, for clarity, exaggerated the thickness in layer and zone.In the accompanying drawings, identical label represents identical element, therefore will omit description of them.
Now with reference to Fig. 1 to Fig. 7 according to an exemplary embodiment of the present invention linear type vibration motor is described in further detail.
Fig. 1 is be used to explaining the according to an exemplary embodiment of the present invention perspective view of linear type vibration motor.Fig. 2 is the decomposition diagram of the linear type vibration motor of Fig. 1.Fig. 3 is the diagram for the motion of the linear type vibration motor of key-drawing 1, and Fig. 4 is the perspective view for the supporting bracket of the linear type vibration motor of key-drawing 1.
Referring to figs. 1 through Fig. 4, linear type vibration motor 100 comprises supporting bracket 110, movable part 120, weight assembly 130, elastic component 140 and housing 150.
Accommodate plate 114 in the supporting bracket 110, to allow within it on the side installation elements and to protect these elements.Supporting bracket 110 can have the shape corresponding with the shape of housing 150, but is not limited to this.Can design according to designer's wish different supporting bracket 110.
A plurality of coils 112 all are wound into broad flat shape, and are arranged side by side, thereby they are arranged on the top surface of plate 114 commodiously.Alternating current (AC) but flowing through coil 112, thereby allow movable part 120 to make 130 vibrations of weight assembly.
By the electric field force of the frequency that produces from coil 112 and from magnet 122 to yoke the direction of 124 magnetic force that produce, determine the direction of motion of movable part 120 according to Lorentz force.
Yoke 124 is arranged between magnet 122 and the weight assembly 130, and magnet 122 can be attached to the basal surface of yoke 124.Can by yoke 124 being contained in the holding portion 132 in the basal surface that is formed at weight assembly 130, fix yoke 124.Yet the shape of yoke 124 is not limited to described description, and can carry out multiple design according to designer's intention.
In above-mentioned mode, movable part 120 is fixed to weight assembly 130, thereby weight assembly 130 moves along the direction identical with the direction of motion of movable part 120 together with movable part 120.
In the top surface of weight assembly 130, have recessed 136, to hold elastic component 140 and connector 152.In addition, gathering sill 134 extends along the both side surface of weight assembly 130, to hold respectively guide post 154.
Each gathering sill 134 is recessed to the inside of weight assembly, and has rectangular shape; Yet gathering sill is not limited to described description and can has round-shaped.
Therefore, when weight assembly 130 by movable part 120 when being parallel to the horizontal motion on ground, weight assembly 130 moves along guide post.Therefore, can more stably drive weight assembly 130.
Recessed 136 are formed in the top surface of weight assembly 130, and elastic component 140 and connector 152 are inserted in recessed 136.Connector 152 has an end that is connected to housing 150 and extends to recessed 136 the other end, and connector 152 is used for driving recessed 136.
Here, connector 152 can be had a well-regulated hexahedral shape and be fixed to the interior top surface of housing 150.Yet the shape of connector 152 is not limited to described description, and connector 152 can become one with housing 150.
After connector 152 was inserted into recessed 136 center of weight assembly 130, elastic component 140 was inserted in recessed 136 in the both sides of connector 52 respectively.
Thereby when 130 motion of weight assembly, elastic component 140 compressed or stretchings are delivered to connector 152 with the motoricity with them.
Because elastic component 140 inserts and is fixed to the recessed 136 of weight assembly 130, thus do not need the fixedly independent structure of elastic component, thus make designs simplification.In addition, because elastic component 140 compression or stretch and without any other distortion in recessed 136, so transmitting vibrations more effectively.
Here, elastic component 140 can be helical spring all, but is not limited to this.Can select or use various structures as elastic component, so that they can provide elastic force.The elastic component 140 that is arranged on connector 152 both sides has been set the boundary of weight assembly 130 horizontal movements.
Fig. 5 A to Fig. 5 C is be used to explaining the according to an exemplary embodiment of the present invention diagram of the motion of elastic component 140.
With reference to Fig. 5 A, connector 152 is arranged on the center on recessed 136 in the surface that is formed on weight assembly 130.Then, two elastic components 140 are inserted in recessed 136, and the end is arranged on left side and the right side of connector 152 regularly.
Shown in Fig. 5 B, when weight assembly 130 moved to the right side, the elastic component 140 that is positioned at the left side was compressed, and the elastic component that is positioned at simultaneously the right side is stretched.
Shown in Fig. 5 C, when weight assembly 130 moved to the left side, the elastic component 140 that is positioned at the left side was stretched, and the elastic component 140 that is positioned at simultaneously the right side is compressed.Because the elastic force of elastic component 140 is so that the vibration force of weight assembly 130 can be transmitted more effectively.Be arranged on the both sides of connector 152 and the elastic component 140 of along continuous straight runs vibration and set the boundary that weight assembly 130 moves horizontally.
According to present embodiment, designed along the linear type vibration motor of the horizontal direction vibration that is parallel to ground.This linear type vibration motor along continuous straight runs in being installed in personal portable terminals (that is, and personal portable terminals vertically, rather than the thickness direction of personal portable terminals) during vibration, reduced the thickness of personal portable terminals.This allows linear type vibration motor to form in the horizontal direction longlyer, thereby improves vibration performance.
Fig. 6 is the perspective view of the linear type vibration motor of another exemplary embodiment according to the present invention.
With reference to Fig. 6, linear type vibration motor 200 comprises supporting bracket 110, movable part, weight assembly 130, elastic component 240 and housing 150.
In this embodiment, supporting bracket 110, movable part, weight assembly 130 and housing 150 are basic identical with supporting bracket 110, movable part, weight assembly 130 and the housing 150 of the exemplary embodiment of front.Therefore, with the detailed description of omitting them.
Elastic component 240 is inserted in being recessed into of weight assembly 130, and each elastic component 240 all can be torsionspring.
Thereby, do not need for the fixing independent structure of elastic component, therefore such linear type vibration motor 200 can have the structure of simplification.In addition, elastic component 240 is compressed and stretch and do not have other distortion in weight assembly 130 recessed, thus transmitting vibrations effectively.
Fig. 7 is the perspective view of the linear type vibration motor of the 3rd exemplary embodiment according to the present invention.
With reference to Fig. 7, linear type vibration motor 300 comprises supporting bracket 110, movable part, weight assembly 130, elastic component 340 and housing 150.
In this embodiment, supporting bracket 110, movable part, weight assembly 130 and housing 150 are substantially the same with supporting bracket 110, movable part, weight assembly 130 and the housing 150 of the exemplary embodiment of front.Therefore, with the detailed description of omitting them.
Elastic component is that variable reason is to determine resonance frequency according to quality and the elastic constant of weight assembly, and this resonance frequency is huge to the vibration effect of weight assembly.
Thereby, do not need for the fixing independent structure of elastic component, therefore such linear type vibration motor 300 can have the structure of simplification.In addition, elastic component 340 is compressed and stretch and do not have other distortion in weight assembly 130 recessed, thus transmitting vibrations effectively.
As mentioned above, according to exemplary embodiment of the present invention, the linear type vibration motor along continuous straight runs in the personal portable terminals (that is, personal portable terminals vertically) rather than along the thickness direction straight-line oscillation of personal portable terminals.Thereby, can realize reducing the purpose of the thickness of personal portable terminals.In addition, linear type vibration motor can prolong along direction of vibration, and irrelevant with the thickness of personal portable terminals, thereby has further improved vibration performance.
In addition, the weight assembly of linear type vibration motor has recessed on a surface of weight assembly, and the recessed connector that holds elastic component and be fixed to housing, thereby the vibration of weight assembly can be delivered to housing effectively.Because elastic component easily is installed in weight assembly recessed, so do not need for the fixing independent fixed structure of elastic component.
Although illustrated and described the present invention in conjunction with exemplary embodiment, it will be apparent to those skilled in the art that and in the situation that does not break away from the spirit and scope of the present invention defined by the claims, can make amendment and change.
Claims (9)
1. linear type vibration motor comprises:
Housing will comprise that recessed weight assembly is contained in inside;
Movable part is fixed to described weight assembly;
Coil, electric current flow in coil, with the interaction by electromagnetic field described movable part are moved with described weight assembly;
Connector has an end that is connected to described housing and the other end that extends to the female, and described connector drives the female;
Elastic component is arranged in the female and is positioned at the both sides of described connector, and sets the boundary of the horizontal movement of described weight assembly.
2. linear type vibration motor as claimed in claim 1, wherein, described movable part comprises:
Magnet is provided for the magnetic force of the described horizontal movement of described weight assembly;
Yoke is determined the direction of the described magnetic force of described magnet.
3. linear type vibration motor as claimed in claim 2, wherein, described yoke is arranged between described magnet and the described weight assembly.
4. linear type vibration motor as claimed in claim 2, wherein, described weight assembly has for described yoke being contained in inner holding portion.
5. linear type vibration motor as claimed in claim 1 also comprises the both side surface that is arranged on described housing and is used for guiding the guide post of the motion path of described weight assembly,
Wherein, described weight assembly has corresponding with described guide post respectively gathering sill.
6. linear type vibration motor as claimed in claim 1, wherein, described elastic component comprises torsional spring separately.
7. linear type vibration motor as claimed in claim 1, wherein, described elastic component comprises leaf spring separately.
8. linear type vibration motor as claimed in claim 1, wherein, described elastic component comprises torsionspring separately.
9. linear type vibration motor as claimed in claim 1 also comprises plate, and the top surface of described plate is electrically connected with described coil, and described coil comprises a plurality of coils that are arranged on abreast on the described plate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020090027304A KR100992264B1 (en) | 2009-03-31 | 2009-03-31 | Linear Type Vibration Motor |
| KR10-2009-0027304 | 2009-03-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101854108A CN101854108A (en) | 2010-10-06 |
| CN101854108B true CN101854108B (en) | 2013-03-13 |
Family
ID=42805415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102248617A Expired - Fee Related CN101854108B (en) | 2009-03-31 | 2009-11-27 | Linear type vibration motor |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100992264B1 (en) |
| CN (1) | CN101854108B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101259683B1 (en) | 2010-10-27 | 2013-05-02 | 엘지이노텍 주식회사 | Horizental vibration motor |
| KR101240455B1 (en) * | 2011-06-27 | 2013-03-11 | 주식회사 예일전자 | The linear vibrating motor |
| US9467033B2 (en) | 2012-02-07 | 2016-10-11 | Lg Electronics Inc. | Vibration motor and mobile terminal having the same |
| CN103401394B (en) * | 2013-08-13 | 2015-09-02 | 金龙机电股份有限公司 | A kind of thin type flat rectilinear vibration motor of improvement |
| CN103490582A (en) * | 2013-10-12 | 2014-01-01 | 金龙机电股份有限公司 | Thin type flat linear vibration motor |
| CN105226908B (en) * | 2015-10-20 | 2019-03-22 | 瑞声光电科技(常州)有限公司 | Linear type vibration motor |
| CN105406677B (en) | 2015-11-25 | 2019-03-05 | 歌尔股份有限公司 | A kind of linear vibration motor |
| CN106787584A (en) * | 2016-12-27 | 2017-05-31 | 温州伏尔特电子科技有限公司 | A kind of linear vibration motor |
| FR3068840B1 (en) * | 2017-07-07 | 2023-03-31 | Actronika Sas | VIBROTACTILE ACTUATOR |
| KR102087798B1 (en) * | 2019-11-08 | 2020-04-24 | 주식회사 엠플러스 | Horizontal linear vibrator |
| KR102667300B1 (en) * | 2022-03-02 | 2024-05-23 | 주식회사 이엠텍 | Horizental vibration motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1150716A (en) * | 1995-05-31 | 1997-05-28 | 松下电工株式会社 | Linear oscillating motor |
| EP1193844A1 (en) * | 2000-09-29 | 2002-04-03 | Matsushita Electric Works, Ltd. | Linear oscillator |
| JP2003348813A (en) * | 2002-05-28 | 2003-12-05 | Matsushita Electric Works Ltd | Vibration linear actuator |
| KR20060120859A (en) * | 2005-05-23 | 2006-11-28 | 자화전자(주) | Linear type vibration motor vibrated horizontally |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4155101B2 (en) | 2003-05-16 | 2008-09-24 | 松下電工株式会社 | Vibration type linear actuator and electric toothbrush using the same |
-
2009
- 2009-03-31 KR KR1020090027304A patent/KR100992264B1/en not_active IP Right Cessation
- 2009-11-27 CN CN2009102248617A patent/CN101854108B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1150716A (en) * | 1995-05-31 | 1997-05-28 | 松下电工株式会社 | Linear oscillating motor |
| EP1193844A1 (en) * | 2000-09-29 | 2002-04-03 | Matsushita Electric Works, Ltd. | Linear oscillator |
| JP2003348813A (en) * | 2002-05-28 | 2003-12-05 | Matsushita Electric Works Ltd | Vibration linear actuator |
| KR20060120859A (en) * | 2005-05-23 | 2006-11-28 | 자화전자(주) | Linear type vibration motor vibrated horizontally |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20100108963A (en) | 2010-10-08 |
| KR100992264B1 (en) | 2010-11-05 |
| CN101854108A (en) | 2010-10-06 |
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