CN112737263A - Miniature vibrating device - Google Patents
Miniature vibrating device Download PDFInfo
- Publication number
- CN112737263A CN112737263A CN202011518290.0A CN202011518290A CN112737263A CN 112737263 A CN112737263 A CN 112737263A CN 202011518290 A CN202011518290 A CN 202011518290A CN 112737263 A CN112737263 A CN 112737263A
- Authority
- CN
- China
- Prior art keywords
- mass block
- elastic sheet
- lower shell
- coil
- vibration device
- 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.)
- Pending
Links
- 238000013016 damping Methods 0.000 claims description 8
- 239000006260 foam Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000003466 welding Methods 0.000 description 4
- 230000010287 polarization Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000035807 sensation Effects 0.000 description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 1
- 101001045744 Sus scrofa Hepatocyte nuclear factor 1-beta Proteins 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011553 magnetic fluid Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
-
- 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
- H02K1/34—Reciprocating, oscillating or vibrating parts of the magnetic circuit
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The invention relates to a miniature vibration device, which comprises an upper shell, a lower shell, a printed circuit board, a coil, a mass block and an elastic sheet, wherein the lower shell comprises a plane and a positioning boss, and the central part of the plane protrudes to the upper part; the printed circuit board penetrates through the positioning boss and is combined with the plane of the lower shell, the coil is arranged on the upper portion of the printed circuit board, the center of the coil penetrates through the positioning boss, the mass block is arranged on the upper portion of the coil, magnets are arranged in the mass block, the number of the elastic pieces is two, the two elastic pieces are symmetrically arranged on two sides of the mass block, the upper ends of the elastic pieces are connected with the mass block, and the lower ends of the elastic pieces are arranged on the lower shell; the upper shell and the lower shell are matched with each other to form a closed cavity, and the mass block is suspended in the closed cavity through the elastic sheet. The invention has novel structure, convenient installation, small volume and good vibration sense experience.
Description
Technical Field
The invention belongs to the technical field of electromagnetism and vibration mechanics, relates to a miniaturized linear motor, and particularly relates to a miniature vibration device.
Background
In the linear motor in the current market, the X-direction linear motor is generally applied to the current complete machine product because the vibration body feeling is good and the complete machine space utilization rate is relatively high. However, in order to achieve good vibration feeling experience, most of the X-direction linear motors in the current market are generally large in design size, occupy large use space of the whole machine, and reduce the space utilization rate of the whole machine, and especially for intelligent wearable electronic whole machine products, the requirement for miniaturization design of the linear motors is higher; the X-direction linear motor is long in stroke, displacement is limited by sticking foam or magnetic fluid to reduce braking time, and vibration is reduced; meanwhile, in the vibration process, due to the large assembly difficulty, low assembly precision and poor centering effect, polarization is easy to occur in the vibration process, so that the risk of poor products is caused; in addition, in the welding process of the elastic sheet and the shell as well as the elastic sheet and the mass block, gaps are formed in the welding of the elastic sheet, the shell and the mass block due to the large positioning difficulty of the elastic sheet, and the risk of noise and falling of the reliable elastic sheet is caused in the vibration process of a product.
No patent documents relevant to the present application were found by search.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides the miniature vibration device which is novel in structure, convenient and fast to install, small in size and good in vibration sense experience.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
a miniature vibration device comprises an upper shell, a lower shell, a printed circuit board, a coil, a mass block and an elastic sheet, wherein the lower shell comprises a plane and a positioning boss with the central part of the plane protruding to the upper part; the printed circuit board penetrates through the positioning boss and is combined with the plane of the lower shell, the coil is arranged on the upper portion of the printed circuit board, the center of the coil penetrates through the positioning boss, the mass block is arranged on the upper portion of the coil, magnets are arranged in the mass block, the number of the elastic pieces is two, the two elastic pieces are symmetrically arranged on two sides of the mass block, the upper ends of the elastic pieces are connected with the mass block, and the lower ends of the elastic pieces are arranged on the lower shell; the upper shell and the lower shell are matched with each other to form a closed cavity, and the mass block is suspended in the closed cavity through the elastic sheet.
And both sides of the upper surface of the mass block are also provided with positioning grooves matched with the two ends of the elastic sheet.
And the connecting surface of the elastic sheet and the mass block and the connecting surface of the elastic sheet and the lower shell are both provided with a support, and the supports are both combined with the elastic sheet.
Moreover, the width of the central part of the elastic sheet is narrower than the width of the two sides of the tail.
And, the quality piece upper portion still is provided with the flat board, and the flat board is mainly located magnet upper portion.
And the inner side of the upper shell is provided with a damping device in a left-right limiting manner, and the damping device is made of foam.
Moreover, the elastic sheet is of a C-shaped structure which is integrally manufactured.
The invention has the advantages and positive effects that:
the upper shell and the lower shell are made of magnetic materials, the positioning boss is arranged in the middle of the lower shell, the centering effect on a printed circuit board and a coil can be realized, the polarization problem caused by poor centering effect is solved, meanwhile, the utilization rate of a magnetic field is increased (which is equivalent to the fact that an iron core is additionally arranged in the coil), the driving force is improved, the coil positioning boss structure generates eddy current, the energy consumption is increased at the moment of power failure of the coil, and the braking time of a performance motor is reduced; ensure that the magnetic leakage volume reduces, promote the magnetic circuit utilization ratio, promote product property ability.
The elastic sheet adopts a C-shaped structure and a Z-direction assembly design, so that the integral height of a product is reduced while a sufficient vibration space is ensured, the space utilization rate of the whole machine is improved, and the assembly process flow is simplified;
the positioning groove for the elastic sheet is arranged at the position of the mass block, so that the mass block and the elastic sheet are automatically positioned, and meanwhile, the welding process flow is improved, so that the product is more firmly welded.
Drawings
FIG. 1 is an exploded view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is an internal structural view of the present invention;
FIG. 4 is a schematic view of the construction of the lower case of the present invention;
FIG. 5 is a structural view of the elastic sheet of the present invention;
fig. 6 is a view showing the construction of a stator according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments, which are illustrative only and not limiting, and the scope of the present invention is not limited thereby.
A miniature vibration device comprises an upper shell 1, a lower shell 10, a Flexible Printed Circuit Board (FPCB)9, a Coil (CO) 8, a mass block 2 and an elastic sheet 6, wherein the lower shell comprises a plane and a positioning boss 10-1 with the central part of the plane protruding to the upper part; the flexible printed circuit board penetrates through the positioning boss and is combined with the plane of the lower shell, the coil is arranged on the upper portion of the flexible printed circuit board, the center of the coil penetrates through the positioning boss and is vertically combined with the plane of the lower shell, the mass block is arranged on the upper portion of the coil, and a magnet combining portion is arranged in the mass block and used for fixing the magnet 4, so that the mass block has weight, and vibration is amplified by using the weight; the number of the elastic pieces is two, the elastic pieces are all integrally made C-shaped structures, the upper ends of the elastic pieces are connected with the mass block, and the lower ends of the elastic pieces are arranged on the lower shell;
the inner part of the upper shell is hollow and forms the outer contour of the vibrating device, the upper shell and the lower shell are matched with each other to form a closed cavity, the mass block is suspended in the closed cavity through the elastic sheet, the flexible printed circuit board receives a power supply from the outside and supplies the power supply to the coil, and the coil generates an electric field after receiving the power supply supplied by the flexible printed circuit board, so that the generated electric field and the magnetic field of the magnet are acted, and stable horizontal vibration is generated through the matching of the elastic sheet;
further, the width of the central part of the elastic sheet is narrower than the width of the two sides of the tail, so that the vibration frequency is reduced, and the vibration sensation is improved, wherein the improvement of the vibration sensation means that the higher the frequency is, the more the vibration frequency is, and the lower the frequency is, the less the vibration frequency is, so that the vibration frequency per minute is reduced; since the number of vibrations per minute is reduced, it becomes easier for a user (operator) to sense the vibrations; therefore, the elastic sheet can disperse the stress concentration phenomenon, thereby protecting the elastic sheet from being damaged;
furthermore, positioning grooves matched with the two ends of the elastic sheet are formed in the two sides of the mass block, so that the mass block and the elastic sheet can be positioned autonomously, the welding process is improved, and the product is welded more firmly;
furthermore, in order to prevent the deformation and damage of the elastic sheet, supporting objects 5 are arranged at the connecting surface of the elastic sheet and the mass block and the connecting surface of the elastic sheet and the lower shell, and the supporting objects are combined with the elastic sheet and used for supporting the connection of the elastic sheet and the mass block and the connection of the elastic sheet and the lower shell to fix the elastic sheet and the mass block;
furthermore, a flat Plate (Plate)3 is arranged on the upper part of the mass block, is mainly positioned on the upper part of the magnet, blocks a magnetic field generated by the magnet to form a closed loop of the magnetic field, and has a magnetic field shielding function;
furthermore, a damping device (Damper)7 is arranged at the left and right limiting positions at the inner side of the upper shell, the damping device adopts foam to play a damping role, and the impact of the mass block on the elastic sheet can be absorbed by the damping device and simultaneously the noise is removed;
in the specific implementation of the invention, the upper and lower shells are made of magnetic conductive materials, and the middle part of the lower shell is provided with the positioning boss, so that the centering effect on the printed circuit board and the coil can be realized, the polarization problem caused by poor centering effect can be solved, meanwhile, the utilization rate of a magnetic field is increased (which is equivalent to the fact that an iron core is added in the coil), the driving force is improved, the positioning boss structure generates eddy current, the energy consumption is increased at the moment of power failure of the coil, and the braking time of a performance motor is reduced; ensure that the magnetic leakage volume reduces, promote the magnetic circuit utilization ratio, promote product property ability.
In the specific implementation of the invention, the elastic sheet adopts a C-shaped structure and a Z-direction assembly design, so that the integral height of a product is reduced, the space utilization rate of the whole machine is improved and the assembly process flow is simplified while enough vibration space is ensured.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the invention and the appended claims, and therefore the scope of the invention is not limited to the disclosure of the embodiments and the accompanying drawings.
Claims (7)
1. A miniature vibration device, characterized in that: the lower shell comprises a plane and a positioning boss, wherein the center part of the plane protrudes to the upper part; the printed circuit board penetrates through the positioning boss and is combined with the plane of the lower shell, the coil is arranged on the upper portion of the printed circuit board, the center of the coil penetrates through the positioning boss, the mass block is arranged on the upper portion of the coil, magnets are arranged in the mass block, the number of the elastic pieces is two, the two elastic pieces are symmetrically arranged on two sides of the mass block, the upper ends of the elastic pieces are connected with the mass block, and the lower ends of the elastic pieces are arranged on the lower shell; the upper shell and the lower shell are matched with each other to form a closed cavity, and the mass block is suspended in the closed cavity through the elastic sheet.
2. The micro-vibration device of claim 1, wherein: and positioning grooves matched with the two ends of the elastic sheet are also formed in the two sides of the upper surface of the mass block.
3. The micro-vibration device of claim 1, wherein: supporting objects are arranged at the connecting surface of the elastic sheet and the mass block and the connecting surface of the elastic sheet and the lower shell, and the supporting objects are combined with the elastic sheet.
4. The micro-vibration device of claim 1, wherein: the width of the central part of the elastic sheet is narrower than the width of the two sides of the tail.
5. The micro-vibration device of claim 1, wherein: the upper part of the mass block is also provided with a flat plate, and the flat plate is mainly positioned on the upper part of the magnet.
6. The micro-vibration device of claim 1, wherein: the inner side of the upper shell is provided with a damping device in a left-right limiting mode, and the damping device is made of foam.
7. The micro-vibration device of claim 1, wherein: the elastic sheet is of an integrally made C-shaped structure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011518290.0A CN112737263A (en) | 2020-12-21 | 2020-12-21 | Miniature vibrating device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011518290.0A CN112737263A (en) | 2020-12-21 | 2020-12-21 | Miniature vibrating device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN112737263A true CN112737263A (en) | 2021-04-30 |
Family
ID=75603810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011518290.0A Pending CN112737263A (en) | 2020-12-21 | 2020-12-21 | Miniature vibrating device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112737263A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113507192A (en) * | 2021-06-28 | 2021-10-15 | 天津富禄通信技术有限公司 | Ultra-thin type vibrating device |
CN114157115A (en) * | 2021-11-15 | 2022-03-08 | 天津富禄通信技术有限公司 | High-drive ultrathin linear vibration device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201774341U (en) * | 2010-07-22 | 2011-03-23 | 金龙机电股份有限公司 | Base component used for linear vibration motor |
CN107147267A (en) * | 2017-05-18 | 2017-09-08 | 歌尔股份有限公司 | Linear vibration motor |
CN107968541A (en) * | 2017-12-19 | 2018-04-27 | 歌尔股份有限公司 | A kind of linear vibration motor |
CN109245480A (en) * | 2018-09-10 | 2019-01-18 | 浙江省东阳市东磁诚基电子有限公司 | A kind of horizontal linearity vibrating motor |
-
2020
- 2020-12-21 CN CN202011518290.0A patent/CN112737263A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201774341U (en) * | 2010-07-22 | 2011-03-23 | 金龙机电股份有限公司 | Base component used for linear vibration motor |
CN107147267A (en) * | 2017-05-18 | 2017-09-08 | 歌尔股份有限公司 | Linear vibration motor |
CN107968541A (en) * | 2017-12-19 | 2018-04-27 | 歌尔股份有限公司 | A kind of linear vibration motor |
CN109245480A (en) * | 2018-09-10 | 2019-01-18 | 浙江省东阳市东磁诚基电子有限公司 | A kind of horizontal linearity vibrating motor |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113507192A (en) * | 2021-06-28 | 2021-10-15 | 天津富禄通信技术有限公司 | Ultra-thin type vibrating device |
CN114157115A (en) * | 2021-11-15 | 2022-03-08 | 天津富禄通信技术有限公司 | High-drive ultrathin linear vibration device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN204886637U (en) | Oscillating motor | |
CN112737263A (en) | Miniature vibrating device | |
CN109347295B (en) | Linear vibration motor | |
KR20130035745A (en) | Linear vibration motor | |
WO2023020450A1 (en) | Linear vibration motor | |
CN212588250U (en) | Linear vibration motor | |
CN111463984B (en) | Moving-coil type multidirectional vibration linear motor and implementation method thereof | |
CN204886634U (en) | Oscillating motor | |
CN205753919U (en) | Linear vibration motor | |
CN112600380A (en) | Stable vibration device | |
WO2021000122A1 (en) | Electromagnetic actuator | |
CN214045389U (en) | Miniature vibrating device | |
CN210137273U (en) | Vibrating motor and mobile phone | |
CN205610447U (en) | Magnetism linear motor | |
CN216564882U (en) | High-drive ultrathin linear vibration device | |
CN215580855U (en) | Y-direction linear vibration motor | |
CN114337176B (en) | Vibration device | |
CN204993015U (en) | Magnetic suspension motor | |
CN214228101U (en) | Linear vibration motor and electronic apparatus | |
CN210958104U (en) | Vibration motor | |
CN214045388U (en) | Stable vibration device | |
CN204886631U (en) | Oscillating motor | |
CN202353418U (en) | Linear vibration motor | |
CN208401723U (en) | Linear vibration motor | |
WO2022006938A1 (en) | Linear vibration motor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210430 |
|
RJ01 | Rejection of invention patent application after publication |