CN106787583B - Linear vibration motor - Google Patents
Linear vibration motor Download PDFInfo
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- CN106787583B CN106787583B CN201611192759.XA CN201611192759A CN106787583B CN 106787583 B CN106787583 B CN 106787583B CN 201611192759 A CN201611192759 A CN 201611192759A CN 106787583 B CN106787583 B CN 106787583B
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- vibration motor
- permanent magnets
- linear vibration
- shell
- coils
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- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Abstract
The invention provides a linear vibration motor, which comprises a shell, a coil arranged in an intermediate layer, a mass block fixed with the coil, an upper layer and a lower layer, wherein the upper layer and the lower layer are fixed on the shell and symmetrically distributed on the upper side and the lower side of the intermediate layer; wherein the coil and the mass are fixed to each other by a guide rail, wherein if the coil exceeds one, the coil is arranged in an X direction of the linear vibration motor and the energizing current direction is the same; the upper layer and the lower layer respectively comprise permanent magnets which are arranged corresponding to the coils and a washer which is arranged between the adjacent permanent magnets, wherein the permanent magnets are arranged along the X direction of the linear vibration motor and are magnetized along the Z direction of the linear vibration motor, and the magnetizing directions of the adjacent permanent magnets are opposite; and the magnetizing directions of the permanent magnets corresponding to the lower layer and the upper layer are the same. The invention can solve the problem of the performance limitations of long motor starting and braking time, low corresponding speed and the like of the original product.
Description
Technical Field
The present invention relates to the field of consumer electronics, and more particularly to a linear vibration motor for use in portable consumer electronics.
Background
With the development of communication technology, portable electronic products, such as mobile phones, palm game machines or palm multimedia entertainment devices, are entering into the lives of people. In these portable electronic products, a micro vibration motor is generally used for system feedback, such as call prompt of a mobile phone, vibration feedback of a game machine, and the like. However, along with the trend of thinning electronic products, various components inside the electronic products are required to adapt to the trend, and the micro vibration motor is no exception.
At present, one driving method adopted by a linear vibration motor in mobile phones in current market is linear driving, namely, interaction between an electrified coil and a magnet is utilized as driving force. The driving mode of the original product can realize the haptic feedback function required by users, but the space and magnetic field utilization rate is lower, the provided ampere force is smaller, the starting and braking time of the motor is longer, the response speed is slower, and the defect of the performance can not meet the increasing demands of users on entertainment touch.
Accordingly, in view of the performance limitations of the original products, the present invention provides a new linear vibration motor.
Disclosure of Invention
In view of the above problems, the present invention aims to provide a linear vibration motor, so as to solve the problem of performance limitations of long motor starting and braking time, low corresponding speed, etc. of the original product.
The linear vibration motor provided by the invention comprises a shell, a coil arranged in an intermediate layer, a mass block fixed with the coil, an upper layer and a lower layer, wherein the upper layer and the lower layer are fixed on the shell and symmetrically distributed on the upper side and the lower side of the intermediate layer; wherein, the liquid crystal display device comprises a liquid crystal display device,
the coil and the mass block are mutually fixed through the guide rail, wherein if more than one coil is arranged, the coils are arranged along the X direction of the linear vibration motor, and the energizing current directions of the coils are the same;
the upper layer and the lower layer respectively comprise permanent magnets which are arranged corresponding to the coils and a washer which is arranged between the adjacent permanent magnets, wherein each coil corresponds to two permanent magnets, the permanent magnets are arranged along the X direction of the linear vibration motor and are magnetized along the Z direction of the linear vibration motor, and the magnetizing directions of the adjacent permanent magnets are opposite;
and the magnetizing directions of the permanent magnets corresponding to the lower layer and the upper layer are the same.
Furthermore, it is preferable that the permanent magnet and the washer are respectively provided with a avoiding structure for accommodating the guide rail.
Furthermore, it is preferable that the housing includes an upper case and a lower case which are fitted and fixed to each other;
the upper shell comprises a top wall which is horizontally arranged, four side walls which vertically extend from the top wall to the lower shell, and the lower shell comprises a flat bottom wall; wherein, the liquid crystal display device comprises a liquid crystal display device,
the upper layer permanent magnet and the washer are fixed on the top wall of the upper shell, and the lower layer permanent magnet and the washer are fixed on the bottom wall of the lower shell.
In addition, the preferred proposal also comprises a side magnet group, wherein the side magnet group comprises a middle side magnet group fixedly embedded in the mass block, an upper side magnet group and a lower side magnet group which are arranged in parallel and symmetrically on the upper side and the lower side of the middle side magnet,
the upper magnet group is fixed on the top wall of the upper shell, and the lower magnet group is fixed on the bottom wall of the lower shell.
In addition, the preferred scheme also comprises a spring plate; wherein, the liquid crystal display device comprises a liquid crystal display device,
the two ends of the mass block are elastically connected with the shell through elastic sheets, and the mass block and the coil are suspended in the shell through the elastic sheets.
Further, preferably, the method further comprises FPCB; wherein, the liquid crystal display device comprises a liquid crystal display device,
the coil is connected to an external circuit through the FPCB.
Furthermore, it is preferable that the coil is one;
the upper layer comprises two permanent magnets which are arranged corresponding to the coils and a washer which is arranged between the two permanent magnets.
Furthermore, the number of coils is preferably three;
the upper layer comprises six permanent magnets which are arranged corresponding to the coils and five washers which are arranged between the permanent magnets.
In addition, the preferred solution is that the mass block comprises a mass block arranged at two ends of the guide rail and used for embedding the side magnet group and two I-shaped mass blocks arranged between the coils.
With the linear vibration motor according to the present invention described above, by designing a new magnetic circuit structure including a plurality of side-by-side permanent magnets, a plurality of side-by-side washer, and a plurality of side-by-side coils; the side-by-side magnets magnetize along the Z direction, and the magnetizing directions of two adjacent magnets are opposite; the magnets are alternately arranged with the washer; the magnetic circuit structure can improve the utilization efficiency of a magnetic field, generate larger ampere force and improve the response speed of a motor; the starting and braking time of the motor is reduced, and the vibration sense is strong.
To the accomplishment of the foregoing and related ends, one or more aspects of the invention comprise the details described hereinafter. The following description and the annexed drawings set forth in detail certain illustrative aspects of the invention. These aspects are indicative, however, of but a few of the various ways in which the principles of the invention may be employed. Furthermore, the invention is intended to include all such aspects and their equivalents.
Drawings
Other objects and attainments together with a more complete understanding of the invention will become apparent and appreciated by referring to the following description taken in conjunction with the accompanying drawings. In the drawings:
fig. 1 is an exploded structural view of a linear vibration motor according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a linear vibration motor according to an embodiment of the present invention;
FIG. 3 is a second cross-sectional view of a linear vibration motor according to an embodiment of the present invention;
fig. 4 is a schematic view showing a magnetic circuit perspective structure of a linear vibration motor according to an embodiment of the present invention;
fig. 5 is a side view of a magnetic circuit structure of a linear vibration motor according to an embodiment of the present invention.
Wherein: the upper shell 1, the permanent magnets 21 and 22, the washer 31 and 32, the guide rail 4, the coil 5, the side magnet group 6, the upper side magnet group 61, the middle side magnet group 62, the lower side magnet group 63, the spring plate 7, the mass block 81, the I-shaped mass block 82, the FPCB91, 92 and 93 and the lower shell 10.
The same reference numerals will be used throughout the drawings to refer to similar or corresponding features or functions.
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.
The term "mass" as used in the following description of the embodiments may also be referred to as "balancing weight", and refers to a high-mass, high-density metal mass that is fixed to a vibrating mass that generates vibration to enhance vibration balance.
In addition, the present invention is mainly used for improvement of a micro-vibration motor, but it does not exclude application of the technique in the present invention to a large-sized vibration motor. However, for the purpose of description, in the following description of the embodiments, the terms "linear vibration motor" and "micro vibration motor" are used in the same sense.
In order to describe the structure of the linear vibration motor of the present invention in detail, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In order to solve the problems of low utilization rate of driving force space and magnetic field provided by the magnets and the coils, low ampere force, long starting and braking time of the motor, low response speed and the like in the traditional linear vibration motor structure, the magnetic circuit structure of the linear vibration motor provided by the invention comprises a plurality of side-by-side magnets, a plurality of side-by-side washer and a plurality of side-by-side coils, so that the space and the magnetic field can be fully utilized, a large constant ampere force can be provided, the starting time and the braking time can be reduced, and the vibration sense is strong.
For the purpose of illustrating the structure of the linear vibration motor provided by the present invention, fig. 1 to 5 are respectively exemplarily labeled from different angles. Specifically, fig. 1 shows an exploded structure of a linear vibration motor according to an embodiment of the present invention; fig. 2 illustrates a cross-sectional structure of a linear vibration motor according to an embodiment of the present invention; fig. 3 illustrates a cross-sectional structure of a linear vibration motor according to an embodiment of the present invention; fig. 4 shows a magnetic circuit three-dimensional structure of a linear vibration motor according to an embodiment of the present invention; fig. 5 shows a side view of a magnetic circuit structure of a linear vibration motor according to an embodiment of the present invention.
As shown collectively in fig. 1 to 5, the linear vibration motor of the embodiment of the present invention includes a housing, a coil 5 provided in an intermediate layer and a mass block 81 fixed together with the coil 5, and upper and lower layers fixed to the housing and disposed in parallel with the coil 5 and the mass block of the intermediate layer; wherein the coils 5 and the mass blocks of the middle layer are mutually fixed through the guide rail 4, wherein the coils 5 are arranged along the X direction of the linear vibration motor, and the energizing current directions of all the coils of the middle layer are the same.
The upper layer and the lower layer respectively comprise permanent magnets which are arranged corresponding to the coils 5 and a washer which is arranged between the adjacent permanent magnets, wherein each coil corresponds to two permanent magnets, the permanent magnets are arranged along the X direction of the linear vibration motor, the linear vibration motor is magnetized along the Z direction, and the magnetizing directions of the adjacent permanent magnets are opposite. The lower layer and the upper layer are symmetrically distributed on the upper side and the lower side of the middle layer, wherein the magnetizing directions of the permanent magnets corresponding to the lower layer and the upper layer are the same.
In the embodiment of the present invention, the X direction of the linear vibration motor specifically refers to the common vibration direction of the coil and the mass, the Z direction of the linear vibration motor refers to the direction of the axis of the coil in the linear vibration motor, and the arrow direction a shown in fig. 2 refers to the magnetization direction of the permanent magnet of the linear vibration motor in the Z direction, which is also the axis direction of the coil.
In the embodiment of the present invention, the avoidance structures for accommodating the guide rail 4 are provided on the permanent magnet and the washer, respectively. That is, both ends of the permanent magnet 21 and the washer 31 alternately arranged at the upper layer are provided with the avoidance structure for accommodating the guide rail 4 of the fixed mass block and the coil; two ends of the lower layer of the permanent magnet 22 and the washer 32 which are alternated with each other are also provided with avoiding structures which are used for accommodating the guide rail 4 for fixing the mass block and the coil.
Wherein the housing of the linear vibration motor comprises an upper housing 1 and a lower housing 10 which are mutually adapted and fixed; the upper case 1 includes a horizontally disposed top wall and four side walls extending vertically from the top wall to the lower case direction, and the lower case 10 includes a flat plate-shaped bottom wall; wherein, the upper layer permanent magnet 21 and the washer 31 are fixed on the top wall of the upper shell 1, and the lower layer permanent magnet 22 and the washer 32 are fixed on the bottom wall of the lower shell 10.
The linear vibration motor of the present invention further comprises a side magnet group 6, wherein the side magnet group 6 comprises a middle side magnet group 62 fixedly embedded in the mass block, an upper side magnet group 61 and a lower side magnet group 63 which are arranged in parallel and symmetrically on the upper side and the lower side of the middle side magnet group 62, the upper side magnet group 61 is fixed on the top wall of the upper shell 1, and the lower side magnet group 63 is fixed on the bottom wall of the lower shell 10.
The linear vibration motor of the invention also comprises two elastic sheets. As shown in fig. 1 to 3, two elastic pieces 7 are respectively disposed at the left and right ends of two mass blocks 81, that is, the two ends of the mass block 81 are elastically connected with the housing through the elastic pieces 7, and the elastic pieces 7 suspend the mass block 81 and the coil 5 fixed together with the mass block 81 in the housing, that is: by spacing the spring 7 between the mass 81 and the housing, an elastic restoring force is provided for the vibration of the coils and the mass of the intermediate layer.
In addition, the linear vibration motor of the present invention further includes an FPCB (Flexible Printed Circuit Boar, flexible wiring board). In the present embodiment, the respective coils are connected through the FPCB92 and the FPCB93, and then connected to an external circuit through the FPCB 91. In practical application, other connection modes can be adopted to realize internal connection between the coils, and then the whole coil is connected with an external circuit through the FPCB.
The magnetic circuit structure provided by the invention comprises a plurality of parallel permanent magnets, a plurality of parallel washer and a plurality of parallel coils. Wherein, the side-by-side magnets magnetize along the Z direction of the linear vibration motor, and the magnetizing directions of two adjacent magnets are opposite; the magnets are alternately arranged with the washer; the magnetic circuit structure can improve the utilization efficiency of a magnetic field, generate larger ampere force, improve the response speed of the motor and reduce the starting and braking time of the motor.
As can be seen from the above embodiments, in the present invention, the magnetic circuit structure is divided into three layers of an upper layer, a middle layer and a lower layer; the upper layer and the lower layer have the same structure and are symmetrically distributed on the upper side and the lower side of the middle layer. The upper layer comprises: n (N is an even number) permanent magnets are sequentially arranged along the X direction, the magnetizing directions of the adjacent permanent magnets are opposite, and (N-1) pieces of the warriors and the permanent magnets are alternately arranged along the X direction of the linear vibrating motor (namely, one warrior is arranged between every two adjacent permanent magnets); the intermediate layer comprises: (N/2) coils, wherein each two permanent magnets correspond to one coil; the lower layer: n (N is even number) permanent magnets are sequentially arranged along the X direction of the linear vibration motor, the magnetizing directions of adjacent permanent magnets are opposite to each other along the Z direction of the linear vibration motor, and the (N-1) blocks of the permanent magnets and the permanent magnets are alternately arranged along the X direction of the linear vibration motor in the same magnetizing direction as the upper layer of the permanent magnets. The magnetic circuit structure in the present invention will be described in detail by way of example.
Example 1
When N is 2, the upper layer in the magnetic circuit structure is two permanent magnets and one washer disposed between the two permanent magnets, the middle layer is one coil, and the lower layer is two permanent magnets and one washer disposed between the two permanent magnets, that is, the linear vibration motor of this embodiment includes a housing, one coil disposed in the middle layer and a mass block fixed with the coil, and upper and lower layers fixed on the housing and disposed in parallel with the coil and the mass block of the middle layer.
Wherein, the coil and the two mass blocks of the middle layer are mutually fixed through the guide rail. The spring plates suspend the mass block 81 and the two coils 5 fixed together with the mass block 81 in the housing, namely: by spacing the spring 7 between the mass 81 and the housing, an elastic restoring force is provided for the vibration of one coil and two masses of the intermediate layer.
The upper layer and the lower layer respectively comprise two permanent magnets which are arranged corresponding to the coils and a washer which is arranged between the two permanent magnets, wherein the permanent magnets are arranged along the X direction of the linear vibration motor, the linear vibration motor is magnetized along the Z direction, and the magnetizing directions of the two permanent magnets are opposite.
The lower layer and the upper layer have the same structure, and are symmetrically distributed on the upper side and the lower side of the middle layer, wherein the magnetizing directions of permanent magnets corresponding to the lower layer and the upper layer are the same.
Example two
When N is 4, the upper layer in the magnetic circuit structure is provided with four permanent magnets and three susceptors, and the four permanent magnets and the three susceptors are arranged at intervals; the middle layer is provided with two coils; the lower layer is provided with four permanent magnets and three warfarins, and the four permanent magnets and the three warfarins are arranged at intervals. That is, the linear vibration motor of the present embodiment includes a housing, two coils disposed in an intermediate layer and a mass fixed together with the coils, and upper and lower layers fixed to the housing and disposed in parallel with the coils and the mass of the intermediate layer.
Wherein, the two coils and the mass block are mutually fixed through the guide rail, wherein, the two coils are arranged along the X direction of the linear vibration motor, and the energizing current directions of the two coils are the same; the mass block comprises a mass block 81 embedded with a middle side magnet group and arranged at two ends of the guide rail, and an I-shaped mass block 82 arranged between the two coils. The elastic sheet 7 suspends the mass block 81, the I-shaped mass block 82 and the two coils 5 in the shell, namely: by spacing the spring 7 between the mass 81 and the housing, an elastic restoring force is provided for the vibration of the coils and the mass of the intermediate layer.
The upper layer and the lower layer respectively comprise four permanent magnets which are arranged corresponding to the coils and three warriors which are arranged between the adjacent permanent magnets, wherein the permanent magnets are arranged along the X direction of the linear vibration motor, the linear vibration motor is magnetized along the Z direction, and the magnetizing directions of the adjacent permanent magnets are opposite.
The lower layer and the upper layer have the same structure, and are symmetrically distributed on the upper side and the lower side of the middle layer, wherein the magnetizing directions of permanent magnets corresponding to the lower layer and the upper layer are the same.
Example III
When N is 6, the upper layer in the magnetic circuit structure is provided with six permanent magnets and five washer, and the six permanent magnets and the five washer are arranged at intervals; the middle layer is three coils, and each coil corresponds to two permanent magnets; the lower layer is composed of six permanent magnets and five washer, and the six permanent magnets and the five washer are arranged at intervals. The embodiment shown in fig. 1 to 5 has 6 upper permanent magnets, and as shown in fig. 1 to 5, that is, the linear vibration motor of the present embodiment includes a housing, three coils 5 disposed in a middle layer and a mass fixed together with the coils 5, and upper and lower layers fixed to the housing and disposed in parallel with the coils 5 and the mass of the middle layer.
Wherein the three coils 5 and the mass block are mutually fixed through the guide rail 4, wherein the three coils 5 are arranged along the X direction, and the energizing current directions of the three coils 5 are the same; in the embodiment of the invention, the mass blocks comprise a mass block 81 which is arranged at two ends of the guide rail 4 and is used for embedding the middle side magnet group 62, and two I-shaped mass blocks 82 which are arranged between the three coils 5, the guide rail 4 fixes the three coils 5, the two mass blocks 81 embedded with the middle side magnet group 62 and the two I-shaped mass blocks 82 together, and the middle layer is suspended in the shell under the action of the elastic sheet 7, namely: the elastic sheet 7 is fixed between the middle layer and the shell in a limiting way, and provides elastic restoring force for the vibration of the coil and the mass block of the middle layer.
The upper layer includes six permanent magnets 21 disposed corresponding to the coils 5 and five washers 31 disposed at intervals with the permanent magnets 21, wherein the six permanent magnets 21 are arranged in the X direction of the linear vibration motor, magnetized in the Z direction of the linear vibration motor, and the magnetizing directions of the adjacent permanent magnets are opposite.
The lower layer includes six permanent magnets 22 disposed corresponding to the coils 5 and five sushi 32 disposed at intervals from the permanent magnets 22, wherein the six permanent magnets 22 are arranged in the X direction of the linear vibration motor, magnetized in the Z direction of the linear vibration motor, and the magnetizing directions of the adjacent permanent magnets are opposite.
The lower layer has the same structure as the upper layer, the lower layer and the upper layer are mutually symmetrical about the middle layer and are distributed on the upper side and the lower side of the middle layer, wherein the magnetizing directions of permanent magnets corresponding to the lower layer and the upper layer are the same, and the magnetizing directions of permanent magnets 21 corresponding to the upper layer and permanent magnets 22 corresponding to the lower layer are the same.
In addition, in the embodiment of the present invention, the FPCB includes three FPCBs 91, 92 and 93; wherein, the three coils 5 are connected through the FPCB92 and the FPCB93, and then connected with an external circuit through the FPCB 91.
In summary, according to the linear vibration motor, a new driving mode is provided according to a new magnetic circuit structure, so that the response speed of the linear vibration motor is high, the vibration feeling is strong, and better user experience can be provided for users.
The linear vibration motor according to the present invention is described above by way of example with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that various modifications may be made to the linear vibration motor as set forth in the foregoing invention without departing from the spirit of the invention. Accordingly, the scope of the invention should be determined from the following claims.
Claims (9)
1. The linear vibration motor is characterized by comprising a shell, a coil arranged in an intermediate layer, a mass block fixed with the coil, and an upper layer and a lower layer which are fixed on the shell and symmetrically distributed on the upper side and the lower side of the intermediate layer; wherein, the liquid crystal display device comprises a liquid crystal display device,
the coil and the mass block are mutually fixed through a guide rail, wherein if more than one coil is arranged, the coils are arranged along the X direction of the linear vibration motor, and the energizing current directions of the coils are the same;
the upper layer and the lower layer respectively comprise permanent magnets which are arranged corresponding to the coils and a washer which is arranged between the adjacent permanent magnets, wherein each coil corresponds to two permanent magnets, the permanent magnets are arranged along the X direction of the linear vibration motor, are magnetized along the Z direction of the linear vibration motor, and the magnetizing directions of the adjacent permanent magnets are opposite;
and the magnetizing directions of the permanent magnets corresponding to the lower layer and the upper layer are the same.
2. A linear vibration motor according to claim 1, wherein,
and avoidance structures for accommodating the guide rails are respectively arranged on the permanent magnets and the washer.
3. A linear vibration motor according to claim 1, wherein,
the shell comprises an upper shell and a lower shell which are mutually matched and fixed;
the upper shell comprises a top wall which is horizontally arranged, four side walls which vertically extend from the top wall to the lower shell, and the lower shell comprises a flat bottom wall; wherein, the liquid crystal display device comprises a liquid crystal display device,
the upper layer permanent magnet and the washer are fixed on the top wall of the upper shell, and the lower layer permanent magnet and the washer are fixed on the bottom wall of the lower shell.
4. A linear vibration motor according to claim 3, wherein,
the side magnet group comprises a middle side magnet group fixedly embedded in the mass block, an upper side magnet group and a lower side magnet group which are arranged on the upper side and the lower side of the middle side magnet in parallel and symmetrically, wherein,
the upper magnet group is fixed on the top wall of the upper shell, and the lower magnet group is fixed on the bottom wall of the lower shell.
5. A linear vibration motor according to claim 1, wherein,
the spring plate is also included; wherein, the liquid crystal display device comprises a liquid crystal display device,
the two ends of the mass block are elastically connected with the shell through the elastic pieces, and the mass block and the coil are suspended in the shell through the elastic pieces.
6. A linear vibration motor according to claim 1, wherein,
also included is an FPCB; wherein, the liquid crystal display device comprises a liquid crystal display device,
the coil is connected with an external circuit through the FPCB.
7. A linear vibration motor according to claim 1, wherein,
the number of the coils is one;
the upper layer comprises two permanent magnets which are arranged corresponding to the coils and a washer which is arranged between the two permanent magnets.
8. A linear vibration motor according to claim 1, wherein,
the number of the coils is three;
the upper layer comprises six permanent magnets which are arranged corresponding to the coils and five warriors which are arranged between the permanent magnets.
9. The linear vibration motor of claim 8, wherein the motor is configured to control the motor,
the mass blocks comprise mass blocks arranged at two ends of the guide rail and used for embedding the side magnet groups and two I-shaped mass blocks arranged between the coils.
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| CN201611192759.XA CN106787583B (en) | 2016-12-21 | 2016-12-21 | Linear vibration motor |
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| CN201611192759.XA CN106787583B (en) | 2016-12-21 | 2016-12-21 | Linear vibration motor |
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| CN108334193B (en) * | 2018-01-04 | 2021-04-20 | 瑞声科技(新加坡)有限公司 | Method and device for generating motor brake signal |
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| CN105356715A (en) * | 2015-12-03 | 2016-02-24 | 歌尔声学股份有限公司 | Linear vibration motor and mobile device |
| CN105591512A (en) * | 2016-03-11 | 2016-05-18 | 歌尔声学股份有限公司 | Linear vibration motor |
| CN205385397U (en) * | 2016-01-29 | 2016-07-13 | 歌尔声学股份有限公司 | Linear vibrating motor |
| CN105896870A (en) * | 2016-05-26 | 2016-08-24 | 歌尔声学股份有限公司 | Linear vibration motor |
| CN106026604A (en) * | 2016-06-06 | 2016-10-12 | 歌尔股份有限公司 | Linear vibrating motor |
| CN206313636U (en) * | 2016-12-21 | 2017-07-07 | 歌尔股份有限公司 | Linear vibration motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356715A (en) * | 2015-12-03 | 2016-02-24 | 歌尔声学股份有限公司 | Linear vibration motor and mobile device |
| CN205385397U (en) * | 2016-01-29 | 2016-07-13 | 歌尔声学股份有限公司 | Linear vibrating motor |
| CN105591512A (en) * | 2016-03-11 | 2016-05-18 | 歌尔声学股份有限公司 | Linear vibration motor |
| CN105896870A (en) * | 2016-05-26 | 2016-08-24 | 歌尔声学股份有限公司 | Linear vibration motor |
| CN106026604A (en) * | 2016-06-06 | 2016-10-12 | 歌尔股份有限公司 | Linear vibrating motor |
| CN206313636U (en) * | 2016-12-21 | 2017-07-07 | 歌尔股份有限公司 | Linear vibration motor |
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