CN210629319U - Linear vibration motor with magnetic repulsion force spring vibrator assembly - Google Patents
Linear vibration motor with magnetic repulsion force spring vibrator assembly Download PDFInfo
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- CN210629319U CN210629319U CN201921781101.1U CN201921781101U CN210629319U CN 210629319 U CN210629319 U CN 210629319U CN 201921781101 U CN201921781101 U CN 201921781101U CN 210629319 U CN210629319 U CN 210629319U
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Abstract
The utility model discloses a linear vibration motor with magnetic repulsion force spring vibrator component, which comprises an upper shell, a lower shell, a PCB board, a stator coil and a vibrator, wherein the vibrator comprises a magnetic conduction cap, a magnetic steel, a magnetic conduction disc and a magnetic suspension repulsion force spring, the magnetic steel is arranged in the magnetic conduction cap, the lower end is provided with the magnetic conduction disc, the magnetic suspension repulsion force spring is sheathed outside the magnetic conduction cap, the stator coil is fixed on the lower shell, the upper part of the stator coil is embedded in the magnetic conduction cap, the magnetic steel extends into the stator coil, the upper shell and the lower shell are respectively fixed on the upper end and the lower end of a middle annular iron disc on the magnetic suspension repulsion force spring, the outermost ring of the magnetic suspension repulsion force spring component structure is fixedly connected with the upper shell and the lower shell, can simultaneously provide radial supporting force and axial elastic force, realize the elastic performance of a non-contact magnetic force spring, the service life of the elastic component is prolonged, and the vibration effect and the stability of the motor are improved.
Description
Technical Field
The utility model relates to a miniature linear vibration motor technical field especially relates to a linear vibration motor with magnetic repulsion spring oscillator subassembly.
Background
The micro linear vibration motor is a technology for converting electric energy into linear motion mechanical energy, and the vibrator component reciprocates up and down to generate vibration sense through the attraction force and the repulsion force of an alternating current electromagnetic coil and a magnet. The micro linear vibration motor comprises a shell, a vibrator, a stator and an elastic assembly (elastic sheet) arranged between the vibrator and the stator, wherein the vibrator is composed of a permanent magnet, a magnetic conduction disc, a magnetic conduction cap and a mass block, the stator is composed of a coil connected with a lower machine shell, the vibrator is connected with an upper machine shell and a lower machine shell through the elastic assembly, the coil is bonded with the lower machine shell through glue, and the shell is connected with the elastic sheet and the vibrator through welding. When current passes through the coil, the current cuts the magnet to generate magnetic lines of force, which generates Lorentz force. Since the coil is fixed to the lower case, the lorentz force acts on the vibrator in the form of a reaction force to vibrate the vibrator.
In some existing linear motors, due to certain design defects of elastic elements, the problems of insufficient elasticity, poor stability and reliability and the like are caused, and the vibration effect, stability and the like of the motor are further influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a linear vibrating motor with magnetic repulsion spring oscillator subassembly to solve present vibrating motor among the prior art and pass that the power of shaking is not enough, the noise is big technical problem.
In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a linear vibrating motor with magnetic repulsion spring oscillator subassembly, includes upper housing, lower casing, PCB board, stator coil and oscillator, the oscillator is including leading magnetic cap, magnet steel, magnetic conduction dish and magnetic suspension repulsion spring, the magnet steel sets up in leading the magnetic cap, and its lower extreme is equipped with the magnetic conduction dish, magnetic suspension repulsion spring suit is in the outside of leading the magnetic cap, the stator coil is fixed in on the lower casing, and its upper portion inlays in leading the magnetic cap, the magnet steel stretches into in the stator coil, upper housing and lower casing are fixed in the upper end and the lower extreme of the middle part annular iron disc on the magnetic suspension repulsion spring respectively.
As a further optimization, the magnetic suspension repulsion spring comprises an iron ring, the iron ring is sleeved on the outer side wall of the magnetic guide cap, the middle annular iron disc is positioned on the outer side of the middle part of the iron ring, the upper part and the lower part of the iron ring are respectively provided with a first magnetic force area and a fourth magnetic force area, and the upper end and the lower end of the middle annular iron disc are respectively provided with a second magnetic force area which is repellent to the first magnetic force area and a third magnetic force area which is repellent to the fourth magnetic force area; and a fifth magnetic force area is arranged on the outer side wall of the iron ring, and a sixth magnetic force area which is repellent to the fifth magnetic force area is arranged on the inner side wall of the middle annular iron disc.
As a further optimization, an inner radiation magnetizing iron ring is pasted on the outer side wall of the iron ring to form a fifth magnetic area, an outer radiation magnetizing iron ring is pasted on the inner side wall of the middle annular iron disc to form a sixth magnetic area, a first axial magnetizing iron disc and a fourth axial magnetizing iron disc are respectively arranged on the upper end side wall and the lower end side wall of the inner radiation magnetizing iron ring to form the first magnetic area and the fourth magnetic area, and a second axial magnetizing iron disc and a third axial magnetizing iron disc are pasted on the upper end and the lower end of the middle annular iron disc to form the second magnetic area and the third magnetic area.
As a further optimization, an upper annular iron disc and a lower annular iron disc are respectively arranged on the outer side walls of the upper end and the lower end of the iron ring, the first axial magnetizing iron disc is attached to the lower end of the upper annular iron disc, and the fourth axial magnetizing iron disc is attached to the upper end of the lower annular iron disc.
As a further optimization, the depth of the magnetic conducting cap is greater than the height of the stator coil, and the height of the magnetic steel is less than the height of the stator coil.
As a further optimization, the PCB is mounted on the lower shell and extends out of the lower shell.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the outermost ring of the magnetic suspension repulsion spring assembly structure is fixedly connected with the upper shell and the lower shell, so that radial supporting force and axial elastic force can be provided simultaneously, and the elastic performance of the non-contact magnetic spring is realized;
2. the magnetic suspension repulsion spring has the advantages of simple structure, high feasibility, large elasticity, high stability and reliability, and the service life of the spring piece is prolonged, so that the vibration effect and the stability of the motor are improved.
Drawings
Fig. 1 is an exploded view of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4 is a schematic view of a magnetic pole in the vibrator of the present invention.
Fig. 5 is a schematic view of the vibrator moving downward.
Fig. 6 is a schematic diagram of the vibrator moving upward according to the present invention.
In the figure, 1, an upper shell; 2. a lower housing; 3, PCB board; 4. a stator coil; 51. a magnetic conducting cap; 52. magnetic steel; 53. a magnetically conductive disc; 54. a magnetic suspension repulsion spring; 5401. an iron ring; 5402. a middle annular iron disc; 5411. a first axial magnet-charging disk; 5412. an upper annular iron plate; 5421. a second axial magnetizing disc; 5431. a third axially magnetized iron plate; 5441. a fourth axially magnetized iron disc; 5442. a lower annular iron plate; 5451. an inner radiation magnetizing iron ring; 5461. and an external radiation magnetizing iron ring.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 4, a linear vibration motor with a magnetic repulsion spring vibrator assembly includes an upper housing 1, a lower housing 2, a PCB 3, a stator coil 4 and a vibrator, wherein the vibrator includes a magnetic guide cap 51, a magnetic steel 52, a magnetic guide disc 53 and a magnetic suspension repulsion spring 54, the magnetic steel 52 is disposed in the magnetic guide cap 51, the lower end of the magnetic guide disc 53 is disposed, the magnetic suspension repulsion spring 54 is sleeved outside the magnetic guide cap 51, the stator coil 4 is fixed on the lower housing 2, the upper portion of the stator coil is embedded in the magnetic guide cap 51, the magnetic steel 52 extends into the stator coil 4, and the upper housing 1 and the lower housing 2 are respectively fixed on the upper end and the lower end of a middle annular iron disc 5402 on the magnetic suspension repulsion spring 54.
The magnetic suspension repulsion spring can provide radial magnetic repulsion force and axial magnetic elasticity simultaneously, and the service life of the vibration motor and the flexibility of the up-and-down vibration of the vibrator are greatly improved.
The magnetic suspension repulsion spring 54 comprises an iron ring 5401, the iron ring 5401 is sleeved on the outer side wall of the magnetic guide cap 51, the middle annular iron disc 5402 is positioned on the outer side of the middle part of the iron ring 5401, the upper part and the lower part of the iron ring 5401 are respectively provided with a first magnetic force area and a fourth magnetic force area, and the upper end and the lower end of the middle annular iron disc 5402 are respectively provided with a second magnetic force area which is repelled with the first magnetic force area and a third magnetic force area which is repelled with the fourth magnetic force area; the outer side wall of the iron ring 5401 is provided with a fifth magnetic force area, and the inner side wall of the middle annular iron disc 5402 is provided with a sixth magnetic force area which is repellent to the fifth magnetic force area.
An inner radiation magnetizing iron ring 5451 is pasted on the outer side wall of the iron ring 5401 to form a fifth magnetic area, an outer radiation magnetizing iron ring 5461 is pasted on the inner side wall of the middle annular iron disc 5402 to form a sixth magnetic area, a first axial magnetizing iron disc 5411 and a fourth axial magnetizing iron disc 5441 are respectively arranged on the upper end side wall and the lower end side wall of the inner radiation magnetizing iron ring 5451 to form a first magnetic area and a fourth magnetic area, a second axial magnetizing iron disc 5421 and a third axial magnetizing iron disc 5431 are pasted on the upper end and the lower end of the middle annular iron disc 5402 to form a second magnetic area and a third magnetic area, the inner radiation magnetizing iron ring 5451 and the outer radiation magnetizing iron ring 5461 interact to provide radial magnetic repulsion, the first axial magnetizing iron disc 5411 and the second axial magnetizing iron disc 5421 interact with each other, and the third axial magnetizing iron disc 5431 and the fourth axial magnetizing iron disc 5441 interact with each other to form a common axial magnetic attraction.
An upper annular iron disc 5412 and a lower annular iron disc 5442 are respectively arranged on the outer side walls of the upper end and the lower end of the iron ring 5401, a first axial magnetizing iron disc 5411 is attached to the lower end of the upper annular iron disc 5412, and a fourth axial magnetizing iron disc 5441 is attached to the upper end of the lower annular iron disc 5442.
The depth of the magnetic conducting cap 51 is greater than the height of the stator coil 4, and the height of the magnetic steel 52 is less than the height of the stator coil 4.
The PCB board 3 is mounted on the lower case 2 and extends out of the lower case 2.
When the third axial magnetizing iron disc 5431 and the fourth axial magnetizing iron disc 5441 are close to each other, the vibrator moves downwards to form a state shown in fig. 5 due to the repulsive force between the third axial magnetizing iron disc 5431 and the fourth axial magnetizing iron disc 5441, and at the moment, the vibrator moves upwards to form a state shown in fig. 6 due to the repulsive force between the first axial magnetizing iron disc 5411 and the second axial magnetizing iron disc 5421, and reciprocates in such a way that the vibrator vibrates up and down in the axial direction.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (6)
1. The utility model provides a linear vibration motor with magnetic repulsion spring oscillator subassembly, a serial communication port, including upper casing (1), lower casing (2), PCB board (3), stator coil (4) and oscillator, the oscillator is including leading magnetic cap (51), magnet steel (52), magnetic conduction dish (53) and magnetic suspension repulsion spring (54), magnet steel (52) set up in leading magnetic cap (51), and its lower extreme is equipped with magnetic conduction dish (53), magnetic suspension repulsion spring (54) suit is in the outside of leading magnetic cap (51), stator coil (4) are fixed in on lower casing (2), and its upper portion inlays in leading magnetic cap (51), magnet steel (52) stretch into in stator coil (4), upper casing (1) and lower casing (2) are fixed in the upper end and the lower extreme of middle part annular iron disc (5402) on magnetic suspension repulsion spring (54) respectively.
2. The linear vibration motor having a magnetic repulsive force spring vibrator assembly according to claim 1, wherein the magnetic levitation repulsive force spring (54) comprises an iron ring (5401), the iron ring (5401) is sleeved on an outer sidewall of the magnetic guide cap (51), the middle annular iron disc (5402) is positioned outside a middle portion of the iron ring (5401), an upper portion and a lower portion of the iron ring (5401) are respectively provided with a first magnetic force region and a fourth magnetic force region, an upper end and a lower end of the middle annular iron disc (5402) are respectively provided with a second magnetic force region repulsive to the first magnetic force region and a third magnetic force region repulsive to the fourth magnetic force region; and a fifth magnetic force area is arranged on the outer side wall of the iron ring (5401), and a sixth magnetic force area which is repelled with the fifth magnetic force area is arranged on the inner side wall of the middle annular iron disc (5402).
3. The linear vibration motor having a repulsive magnetic spring vibrator assembly according to claim 2, wherein an inner radial magnetizing iron ring (5451) is attached to an outer sidewall of the iron ring (5401) to form a fifth magnetic field, an outer radial magnetizing iron ring (5461) is attached to an inner sidewall of the middle annular iron disc (5402) to form a sixth magnetic field, a first axial magnetizing iron disc (5411) and a fourth axial magnetizing iron disc (5441) are respectively provided to an upper sidewall and a lower sidewall of the inner radial magnetizing iron ring (5451) to form a first magnetic field and a fourth magnetic field, and a second axial magnetizing iron disc (5421) and a third axial magnetizing iron disc (5431) are attached to an upper end and a lower end of the middle annular iron disc (5402) to form a second magnetic field and a third magnetic field.
4. The linear vibration motor having a repulsive magnetic spring vibrator assembly according to claim 3, wherein an upper annular iron plate (5412) and a lower annular iron plate (5442) are respectively provided on outer sidewalls of upper and lower ends of the iron ring (5401), the first axial magnetizing iron plate (5411) is attached to a lower end of the upper annular iron plate (5412), and the fourth axial magnetizing iron plate (5441) is attached to an upper end of the lower annular iron plate (5442).
5. The linear vibration motor having a magnetic repulsive spring vibrator assembly according to claim 1, wherein a groove depth of the magnetic conductive cap (51) is greater than a height of the stator coil (4), and a height of the magnetic steel (52) is less than the height of the stator coil (4).
6. The linear vibration motor having a magnetic repulsive spring vibrator assembly according to claim 1, wherein the PCB board (3) is mounted on the lower case (2) and protrudes from the lower case (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921781101.1U CN210629319U (en) | 2019-10-23 | 2019-10-23 | Linear vibration motor with magnetic repulsion force spring vibrator assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921781101.1U CN210629319U (en) | 2019-10-23 | 2019-10-23 | Linear vibration motor with magnetic repulsion force spring vibrator assembly |
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| CN210629319U true CN210629319U (en) | 2020-05-26 |
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| CN201921781101.1U Active CN210629319U (en) | 2019-10-23 | 2019-10-23 | Linear vibration motor with magnetic repulsion force spring vibrator assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111669023A (en) * | 2020-06-24 | 2020-09-15 | 浙江省东阳市东磁诚基电子有限公司 | Long-life linear vibration motor structure and implementation method thereof |
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2019
- 2019-10-23 CN CN201921781101.1U patent/CN210629319U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111669023A (en) * | 2020-06-24 | 2020-09-15 | 浙江省东阳市东磁诚基电子有限公司 | Long-life linear vibration motor structure and implementation method thereof |
| WO2021259087A1 (en) * | 2020-06-24 | 2021-12-30 | 浙江省东阳市东磁诚基电子有限公司 | Linear vibration motor structure with long service life, and implementation method therefor |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yisheng Global Co.,Ltd. Assignor: SUZHOU YUANGE ELECTRONIC Co.,Ltd. Contract record no.: X2023990000746 Denomination of utility model: A Linear Vibration Motor with Magnetic Repulsive Spring Oscillator Assembly Granted publication date: 20200526 License type: Common License Record date: 20230810 |
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| EE01 | Entry into force of recordation of patent licensing contract |