CN201608618U - Straight-line vibrating motor - Google Patents
Straight-line vibrating motor Download PDFInfo
- Publication number
- CN201608618U CN201608618U CN2009202968168U CN200920296816U CN201608618U CN 201608618 U CN201608618 U CN 201608618U CN 2009202968168 U CN2009202968168 U CN 2009202968168U CN 200920296816 U CN200920296816 U CN 200920296816U CN 201608618 U CN201608618 U CN 201608618U
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- magnet
- vibration motor
- linear vibration
- coil
- pair
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Abstract
The utility model provides a straight-line vibrating motor which comprises a first magnetic body, a second magnetic body and a third magnetic body, wherein the magnetizing direction of the first magnetic body is the same as that of the second magnetic body; and the magnetizing direction of third magnetic body is opposite to that of the first magnetic body. The straight-line vibrating motor has higher vibratory magnitude and driving force.
Description
Technical field
The utility model relates to a kind of vibrating motor.
Background technology
Along with development of electronic technology, the incoming call silent alert of mobile communication terminal such as mobile phone etc. need be depended on the alerting by vibration user of fuselage, and vibrative parts are built-in miniature linear vibration motor, and the core devices of small-sized medical health equipment such as vibrator for massage also is built-in one miniature linear vibration motor in addition.
Seeing also Fig. 1, is a kind of linear vibration motor magnetic structure side sectional view.Described linear vibration motor magnetic structure 1 comprises a pair of magnets 10 and a coil 12.Mainly there is the actuating force problem of smaller in described linear vibration motor magnetic structure 1, a reason is that it has adopted unicoil 12 structures, cause the magnetic field of the magnet 10 that cooperates with described coil 12 only to have magnetic field to utilize near described coil 12 1 sides, magnetic field away from described coil 12 1 sides then is wasted, and has determined that the actuating force of described linear vibration motor 1 is less.In addition, the magnetic structure of described linear vibration motor 1 adopts pair of magnets 10, causes described coil 12 central area magnetic field intensitys not strong, and utilance is low, has determined that also described linear vibration motor 1 actuating force is less.
The utility model content
Be to solve linear vibration motor actuating force problem of smaller, provide a kind of actuating force bigger linear vibration motor real in necessary.
A kind of linear vibration motor comprises first magnet, second magnet and the 3rd magnet, and described first magnet is identical with the magnetizing direction of described second magnet, and the magnetizing direction of described the 3rd magnet is opposite with the magnetizing direction of described first magnet.
Preferably, described the 3rd magnet is arranged between described first magnet and described second magnet.
Preferably, the magnetizing direction of described first magnet, described second magnet and described the 3rd magnet is that thickness magnetizes.
Preferably, described linear vibration motor further comprises a pair of coil, and described a pair of coil is arranged on the below of described first magnet, described second magnet and described the 3rd magnet.
Preferably, described a pair of coil is and is the single layer coil structure.
Preferably, described a pair of coil is the lattice coil structure.
Preferably, described linear vibration motor further comprises pole piece, and described pole piece is arranged on the top of described first magnet, described second magnet and described the 3rd magnet.
Preferably, described pole piece and described first magnet, described second magnet and described the 3rd magnet are bonded into one.
Preferably, described linear vibration motor further comprises upper casing and lower casing, and described upper casing and lower casing are accommodated described first magnet, described second magnet and described the 3rd magnet jointly.
Compared to prior art, first magnet of linear vibration motor of the present utility model is identical with the magnetizing direction of described second magnet, and the magnetizing direction of described the 3rd magnet is opposite with the magnetizing direction of described first magnet.Described the 3rd magnet is contrary near the polarity of an end of described coil and the polarity of described first magnet and the close described end winding of described second magnet, make the magnetic line of force of described the 3rd magnet to described first magnet and the second magnet closure, more pass described a pair of coil, increased the actuating force of described coil.
Description of drawings
Fig. 1 is a kind of side sectional structure chart of magnetic structure of the linear vibration motor relevant with the utility model.
Fig. 2 is the side sectional structure chart of the magnetic structure of linear vibration motor of the present utility model.
Embodiment
Be elaborated below in conjunction with the structure of accompanying drawing to this practical linear vibration motor.
Fig. 2 is the side sectional view of linear vibration motor of the present utility model.Described linear vibration motor 2 comprises first magnet 21, second magnet 22, the 3rd magnet 23, pole piece 24, a pair of coil 25, lower casing 26, upper casing 27 and vibration hammer 28.Described lower casing 26 is used to cooperate the shell (not indicating) that forms described linear vibration motor 2 to accommodate described first magnet 21, second magnet 22, the 3rd magnet 23, pole piece 24, a pair of coil 25 and vibration hammer 28 with upper casing 27.Described vibration hammer 28 by reed (indicate) with its two ends clamping with in the receiving space that is suspended at described lower casing 26 and upper casing 27 and constitutes.
Described a pair of coil 25 is positioned at described vibration hammer 28 downsides and is symmetricly set on described lower casing 26 inside bottom surface centers, and keeps at a certain distance away.Described a pair of coil 25 can be single layer coil or lattice coil.
Described first magnet 21, the 3rd magnet 23, second magnet 22 from left to right are embedded in the described vibration hammer 28 successively.Described the 3rd magnet 23 volumes greater than described first magnet 21 and second magnet 22 and all correspondence be arranged on described a pair of coil 25 tops.Described first magnet 21, second magnet 22, the 3rd magnet 23 all are permanent magnets, and it is got by the higher metallic of multiple hardness usually, as iron, aluminium, nickel and cobalt etc., and perhaps copper, niobium and tantalum etc., according to the difference of composition, its magnetic property is also to should be differentiated.
Described first magnet 21 is identical with the magnetizing direction of described second magnet 22, and the magnetizing direction of the magnetizing direction of described the 3rd magnet 23 and described first magnet 21 and described second magnet 22 is contrary.And the magnetizing direction of described first magnet 21, second magnet 22 and the 3rd magnet 23 is thickness and magnetizes.For example, the magnetizing direction of described first magnet 21 and described second magnet 22 is downwards, and promptly towards described lower casing 26, the magnetizing direction of described the 3rd magnet 23 is then for upwards, promptly towards described upper casing 27.
Described pole piece 24 fits tightly at described vibration hammer 28 upsides, promptly near a side of described upper casing 27, and covers described first magnet 21, second magnet 22 and the 3rd magnet 23.Described pole piece 24 is bonded together with described first magnet 21, described second magnet 22 and described the 3rd magnet 23, thereby forms magnetic circuit.
Described linear vibration motor 2 comprises a pair of coil 25, first magnet 21, second magnet 22 and the 3rd magnet 23.Adopt twin coil 25 to drive, and described the 3rd magnet 23 is contrary with described first magnet 21 and second magnet, 22 magnetizing directions, described first, second magnet 21 and 22 magnetizing directions are identical, understand more two coils 25 that pass near the magnetic line of force of coil 25 parts, increase the actuating force of described a pair of coil 25, thereby increased the vibratory output of described linear vibration motor 2.
In the middle of present embodiment, the 3rd magnet 23 width of described linear vibration motor 2 are bigger than described first magnet 21, also big than described second magnet 22, and it is contrary near the polarity of an end of described coil 25 and the polarity of described first magnet 21 and described second magnet 22 close described coil 25 ends, make the magnetic line of force of described the 3rd magnet 23 to described first magnet 21 and second magnet, 22 closures, more pass described a pair of coil 25, increased the actuating force of described coil 25.
Only be preferred case study on implementation of the present utility model below, be not limited to the utility model, for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (9)
1. linear vibration motor, comprise first magnet and second magnet, described first magnet is identical with the magnetizing direction of described second magnet, it is characterized in that: further comprise the 3rd magnet, and the magnetizing direction of described the 3rd magnet is opposite with the magnetizing direction of described first magnet.
2. linear vibration motor according to claim 1 is characterized in that: described the 3rd magnet is arranged between described first magnet and described second magnet.
3. linear vibration motor according to claim 2 is characterized in that: the magnetizing direction of described first magnet, described second magnet and described the 3rd magnet is that thickness magnetizes.
4. linear vibration motor according to claim 3 is characterized in that: further comprise a pair of coil, described a pair of coil is arranged on the below of described first magnet, described second magnet and described the 3rd magnet.
5. linear vibration motor according to claim 4 is characterized in that: described a pair of coil is the single layer coil structure.
6. linear vibration motor according to claim 4 is characterized in that: described a pair of coil is the lattice coil structure.
7. linear vibration motor according to claim 4 is characterized in that: further comprise pole piece, described pole piece is arranged on the top of described first magnet, described second magnet and described the 3rd magnet.
8. linear vibration motor according to claim 7 is characterized in that: described pole piece and described first magnet, described second magnet and described the 3rd magnet are bonded into one.
9. linear vibration motor according to claim 1 is characterized in that: further comprise upper casing and lower casing, described upper casing and lower casing are accommodated described first magnet, described second magnet and described the 3rd magnet jointly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202968168U CN201608618U (en) | 2009-12-31 | 2009-12-31 | Straight-line vibrating motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202968168U CN201608618U (en) | 2009-12-31 | 2009-12-31 | Straight-line vibrating motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201608618U true CN201608618U (en) | 2010-10-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202968168U Expired - Lifetime CN201608618U (en) | 2009-12-31 | 2009-12-31 | Straight-line vibrating motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN201608618U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103218104A (en) * | 2012-01-19 | 2013-07-24 | 联想(北京)有限公司 | Electronic terminal and method for controlling vibration direction of electronic terminal |
| CN105048759A (en) * | 2015-06-24 | 2015-11-11 | 上海比路电子有限公司 | Linear kinetic energy generator |
| WO2015168987A1 (en) * | 2014-05-09 | 2015-11-12 | 方秋梅 | Vibrating device improved structure for vibrating motor |
| CN105871167A (en) * | 2016-05-26 | 2016-08-17 | 歌尔声学股份有限公司 | Linear vibration motor |
| US20170141643A1 (en) * | 2011-09-22 | 2017-05-18 | Minebea Co., Ltd. | Vibration generator moving vibrator by magnetic field generated by coil and holder used in vibration-generator |
| CN107171526A (en) * | 2017-06-09 | 2017-09-15 | 歌尔股份有限公司 | A kind of linear vibration motor |
| WO2018107656A1 (en) * | 2016-12-16 | 2018-06-21 | 乐爱电子（苏州）有限公司 | Electromagnetic tap-massaging device and handheld massager |
-
2009
- 2009-12-31 CN CN2009202968168U patent/CN201608618U/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190273425A1 (en) * | 2011-09-22 | 2019-09-05 | Minebea Co., Ltd. | Vibration generator moving vibrator by magnetic field generated by coil and holder used in vibration-generator |
| US11336164B2 (en) * | 2011-09-22 | 2022-05-17 | Minebea Mitsumi Inc. | Vibration generator moving vibrator by magnetic field generated by coil and holder used in vibration-generator |
| US20170141643A1 (en) * | 2011-09-22 | 2017-05-18 | Minebea Co., Ltd. | Vibration generator moving vibrator by magnetic field generated by coil and holder used in vibration-generator |
| US20170141664A1 (en) * | 2011-09-22 | 2017-05-18 | Minebea Co., Ltd. | Vibration generator moving vibrator by magnetic field generated by coil and holder used in vibration-generator |
| US10790735B2 (en) * | 2011-09-22 | 2020-09-29 | Minebea Mitsumi Inc. | Vibration generator moving vibrator by magnetic field generated by coil and holder used in vibration-generator |
| US10778074B2 (en) * | 2011-09-22 | 2020-09-15 | Minebea Mitsumi Inc. | Vibration generator moving vibrator by magnetic field generated by coil and holder used in vibration-generator |
| CN103218104B (en) * | 2012-01-19 | 2018-06-01 | 联想(北京)有限公司 | A kind of electric terminal and the method in control electric terminal vibrations direction |
| CN103218104A (en) * | 2012-01-19 | 2013-07-24 | 联想(北京)有限公司 | Electronic terminal and method for controlling vibration direction of electronic terminal |
| WO2015168987A1 (en) * | 2014-05-09 | 2015-11-12 | 方秋梅 | Vibrating device improved structure for vibrating motor |
| CN105048759A (en) * | 2015-06-24 | 2015-11-11 | 上海比路电子有限公司 | Linear kinetic energy generator |
| CN105871167B (en) * | 2016-05-26 | 2018-07-03 | 歌尔股份有限公司 | Linear vibration motor |
| CN105871167A (en) * | 2016-05-26 | 2016-08-17 | 歌尔声学股份有限公司 | Linear vibration motor |
| WO2018107656A1 (en) * | 2016-12-16 | 2018-06-21 | 乐爱电子（苏州）有限公司 | Electromagnetic tap-massaging device and handheld massager |
| CN107171526A (en) * | 2017-06-09 | 2017-09-15 | 歌尔股份有限公司 | A kind of linear vibration motor |
| CN107171526B (en) * | 2017-06-09 | 2024-02-13 | 歌尔股份有限公司 | Linear vibration motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170526 Address after: Singapore Ang Mo Kio 65 Street No. 10 techpoint Building 1 floor, No. 8 Co-patentee after: AAC Acoustic Technologies (Changzhou) Co., Ltd. Patentee after: AAC Technologies (Singapore) Co., Ltd. Address before: 518057 Nanshan District province high tech Industrial Park, Shenzhen, North West New Road, No. 18 Co-patentee before: AAC Acoustic Technologies (Changzhou) Co., Ltd. Patentee before: AAC Acoustic Technologies (Shenzhen) Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20101013 |
|
| CX01 | Expiry of patent term |