CN109862493B - Vibrating element - Google Patents
Vibrating element Download PDFInfo
- Publication number
- CN109862493B CN109862493B CN201910046528.5A CN201910046528A CN109862493B CN 109862493 B CN109862493 B CN 109862493B CN 201910046528 A CN201910046528 A CN 201910046528A CN 109862493 B CN109862493 B CN 109862493B
- Authority
- CN
- China
- Prior art keywords
- pair
- plate
- vibratory
- elastic sheet
- magnetic return
- 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.)
- Active
Links
- 238000005452 bending Methods 0.000 claims description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- RIRXDDRGHVUXNJ-UHFFFAOYSA-N [Cu].[P] Chemical compound [Cu].[P] RIRXDDRGHVUXNJ-UHFFFAOYSA-N 0.000 claims description 4
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000007688 edging Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Abstract
The invention relates to a vibrating element, which comprises: a pair of support frames; the lower elastic piece is spanned at the bottoms of the pair of support frames; a magnetic return structure combined with the top surface of the lower elastic sheet and having a magnetic gap; the upper elastic piece is spanned on the top of the pair of support frames; a coil assembly combined with the bottom surface of the upper elastic sheet and provided with a pair of leads, wherein the coil assembly is positioned in the magnetic gap; a vibration plate coupled to the upper elastic sheet; and a pair of electric connection plates combined with the upper elastic sheet or the vibration plate for electrically connecting the pair of leads. Therefore, the device is used for solving the problem that the prior art cannot generate larger vibration energy, and has the effect of generating larger vibration energy.
Description
Technical Field
The present invention relates to a vibrating element, and more particularly, to a vibrating core element comprising a magnetic return structure, a coil assembly, a vibrating plate, an electric connection plate, etc., which is assembled to a lower elastic sheet and an upper elastic sheet and straddled over a pair of supporting frames.
Background
The vibration principle of the vibration element (Linear resonant actuator, LRA) is basically the same as that of a loudspeaker, and the vibration of the vibration plate is driven by the vibration of the coil to emit larger vibration in a specific frequency band, so that the vibration element can be applied to products which are applicable to virtual reality or need tactile feedback and the like; however, the vibration element of the prior art cannot generate large vibration energy, and it is difficult to realize haptic feedback with large amplitude.
Disclosure of Invention
The main objective of the present invention is to solve the problem that the prior art cannot generate larger vibration energy, and to provide the effect of generating larger vibration energy.
The other object of the present invention is to provide an accurate assembly and positioning of the components.
In order to achieve the effects, the invention has the structural characteristics that: a pair of support frames; the lower elastic piece is spanned at the bottoms of the pair of support frames; a magnetic return structure combined with the top surface of the lower elastic sheet and having a magnetic gap; the upper elastic piece is spanned on the top of the pair of support frames; a coil assembly combined with the bottom surface of the upper elastic sheet and provided with a pair of leads, wherein the coil assembly is positioned in the magnetic gap; a vibration plate coupled to the upper elastic sheet; and a pair of electric connection plates combined with the upper elastic sheet or the vibration plate for electrically connecting the pair of leads.
In addition, the lower elastic sheet is provided with a magnetic return joint part relative to the magnetic return structure, and two plane elastic parts extend outwards from two ends of the magnetic return joint part; the plane elastic part is a plane hollow elastic part, the plane hollow elastic part is provided with a pair of lower elastic arms and a support frame edge, the support frame edge is connected with the head ends of the pair of lower elastic arms and is combined with the bottom of the support frame, the magnetic return combining part is provided with two pairs of magnetic return positioning walls relative to the outer edge of the magnetic return structure, and the two pairs of magnetic return positioning walls are positioned outside the two ends of the magnetic return combining part.
In addition, the bottom of the inner surface of the support frame is provided with an edge strip bonding plane in a digging manner relative to the edge strip of the support frame, and an edge strip pressing inclined plane is upwards formed by the edge strip bonding plane, wherein the setting height of the edge strip bonding plane is greater than the amplitude of the lower elastic sheet.
In addition, the upper elastic sheet is provided with a vibrating plate combining part relative to the vibrating plate, two pairs of upper elastic arms are outwards extended from two ends of the vibrating plate combining part, and two three-dimensional hollow elastic parts are further outwards extended from two ends of the vibrating plate combining part; however, the vibration plate combining part is provided with two pairs of vibration plate positioning walls corresponding to the outer edges of the vibration plate, the two pairs of vibration plate positioning walls are formed at the middle section of the vibration plate combining part, the middle section of the vibration plate is provided with two positioning wall grooves corresponding to the two pairs of vibration plate positioning walls, the three-dimensional hollow elastic part is provided with a pair of upper and lower bending elastic arms and a magnetic return edge strip, and the magnetic return edge strip is connected with the front ends of the pair of upper and lower bending elastic arms and combined with the magnetic return structure.
Furthermore, the pair of lower spring arms are bent, and the side edges of the pair of lower spring arms do not exceed the side edges of the pair of supporting frames; wherein the pair of lower spring arms take on an outwardly curved or S-curved shape. Alternatively, the thickness of the lower elastic sheet is smaller than that of the upper elastic sheet. The lower elastic sheet and the upper elastic sheet are made of stainless steel, phosphor copper, beryllium copper or titanium. The vibrating plate is combined with the top surface of the upper elastic sheet, the pair of electric connecting plates are combined with the top surface of the upper elastic sheet, and two ends of the vibrating plate are provided with a pair of electric connecting plate grooves corresponding to the pair of electric connecting plates. The upper elastic piece has a pair of first lead guide grooves opposite to the pair of leads, and the pair of electric connection plates has a pair of second lead guide grooves opposite to the pair of leads.
Therefore, the vibrating core elements such as the magnetic return structure, the coil assembly, the vibrating plate, the electric connection plate and the like are assembled between the lower elastic sheet and the upper elastic sheet and spanned between the pair of supporting frames, and when vibration is generated, the vibrating core elements not only drive the vibrating plate to vibrate, but also vibrate the whole vibrating core elements (except the supporting frames), so that larger vibration displacement is generated.
Drawings
Fig. 1 is an exploded view of the structure of the present invention.
Fig. 2 is a structural perspective view of the present invention.
Fig. 3 is a structural cross-sectional view of the present invention.
10. Supporting frame
11. Edge strip attaching plane
12. Edge strip pressing inclined plane
20. Lower elastic sheet
21. Magnetic return joint
211. Magnetic return positioning wall
22. Plane hollow elastic part
221. Lower spring arm
222. Support frame edging
30. Magnetic return structure
31. Magnetic gap
40. Upper elastic sheet
41. Vibration plate joint
411. Vibrating plate positioning wall
42. Spring arm
43. Three-dimensional hollow elastic part
431. Up-down bending spring arm
432. Magnetic edging
433. First lead guide groove
50. Coil assembly
51. Lead wire
60. Vibrating plate
61. Positioning wall groove
62. Electric connection plate groove
70. Electric connection board
71. Second lead guide groove
Detailed Description
First, referring to fig. 1 to 3, the present invention includes: a pair of support frames 10, a lower elastic sheet 20, a magnetic return structure 30, an upper elastic sheet 40, a coil assembly 50, a vibration plate 60, and a pair of electric connection plates 70.
The lower elastic sheet 20 has a magnetic return joint portion 21, two planar hollow elastic portions 22 extend outwards from two ends of the magnetic return joint portion 21, two pairs of magnetic return positioning walls 211 are arranged outside two ends of the magnetic return joint portion 21, the planar hollow elastic portions 22 have a pair of lower elastic arms 221 and a support frame edge 222, the support frame edge 222 is connected with the front ends of the pair of lower elastic arms 221, the bottom of the inner surface of the support frame 10 is dug with an edge bonding plane 11 relative to the support frame edge 221 so as to bond the support frame edge 221 with the bottom of the support frame 10, the lower elastic sheet 20 spans the bottom of the pair of support frames 10, an edge pressing inclined plane 12 is formed upwards from the edge bonding plane 11, and the setting height of the edge bonding plane 11 is greater than the amplitude of the lower elastic sheet 20; however, the pair of lower spring arms 221 has an outward curved shape or an S-shaped curved shape, and the side edges of the pair of lower spring arms 221 do not exceed the side edges of the pair of supporting frames 10, and the lower spring plate 20 is made of stainless steel, phosphor copper, beryllium copper or titanium.
The magnetic return structure 30 is coupled to the top surface of the magnetic return coupling portion 21 of the lower elastic sheet 20 and has a magnetic gap 31. The upper elastic sheet 40 has a vibration plate combining part 41, and two pairs of upper elastic arms 42 and two three-dimensional hollow elastic parts 43 extend outwards from two ends of the vibration plate combining part 41, the middle section of the vibration plate combining part 41 has two pairs of vibration plate positioning walls 411, the front ends of the upper elastic arms 42 are combined with the tops of the pair of supporting frames 10, so that the upper elastic sheet 40 is spanned on the tops of the pair of supporting frames 10, the three-dimensional hollow elastic part 43 has a pair of upper and lower bending elastic arms 431 and a magnetic return edge 432, and the magnetic return edge 432 is connected with the front ends of the pair of upper and lower bending elastic arms 431 and combined with the magnetic return structure 30; however, the thickness of the lower elastic sheet 20 is smaller than that of the upper elastic sheet 40, the upper elastic sheet 40 is made of stainless steel, phosphor copper, beryllium copper or titanium, and the upper elastic sheet 40 further has a pair of first lead guide grooves 433.
The coil assembly 50 is coupled to the bottom surface of the upper elastic sheet 40 and has a pair of leads 51, so that the coil assembly 50 is positioned in the magnetic gap 31. The middle section of the vibration plate 60 has two positioning wall grooves 61 opposite to the two pairs of vibration plate positioning walls 411, and two electric connection plate grooves 62 are formed at both ends, so that the vibration plate 60 is combined with the top surface of the upper elastic sheet 40. The pair of electrical connection plates 70 are coupled to the upper elastic sheet 40 (or the vibration plate 60) for electrically connecting the pair of leads 51, and have a pair of second lead guide grooves 71 opposite to the pair of leads 51.
Based on the above-mentioned constitution, the present invention assembles the vibrating core elements such as the magnetic return structure 30, the coil assembly 50, the vibrating plate 60 and the electric connection plate 70 between the lower elastic sheet 20 and the upper elastic sheet 40 and spans between the pair of supporting frames 10, when vibration is generated, not only the vibrating plate 60 is driven to vibrate, but also the whole vibrating core element (except the supporting frames 10) vibrates, thereby generating a larger vibration displacement; therefore, the device has the effect of generating larger vibration energy. In addition, the two planar hollow elastic portions 22 of the lower elastic sheet 20 have a pair of lower elastic arms 221, and the pair of upper elastic arms 42 of the upper elastic sheet 40 and the pair of upper and lower curved elastic arms 431 of the three-dimensional hollow elastic portion 43 can provide better vibration elasticity, so as to generate larger vibration energy.
Furthermore, the magnetic return joint part 21 of the lower elastic sheet 20 is provided with two pairs of magnetic return positioning walls 211, so that the magnetic return structure 30 can be accurately assembled and positioned; in addition, the middle section of the vibration plate combining part 41 of the upper elastic sheet 40 is provided with two pairs of vibration plate positioning walls 411, and the middle section of the vibration plate 60 is provided with two positioning wall grooves 61 corresponding to the two pairs of vibration plate positioning walls 411, so that the vibration plate 60 and the lower elastic sheet 20 can be accurately assembled and positioned without deflection; therefore, the device has the effect of accurately assembling and positioning the components.
In summary, the technical means disclosed in the present invention has the inventive elements of "novelty", "creativity" and "practicality", etc., and is praying to the jun office to make a wheaten patent for the invention without any sense of any sense.
The drawings and descriptions disclosed above are merely preferred embodiments of the invention, and modifications and equivalent variations within the spirit and scope of the present invention will be included in the claims.
Claims (15)
1. A vibrating element, comprising:
a pair of support frames;
the lower elastic piece is spanned at the bottoms of the pair of support frames;
a magnetic return structure combined with the top surface of the lower elastic sheet and having a magnetic gap;
the upper elastic piece is spanned on the top of the pair of support frames;
a coil assembly combined with the bottom surface of the upper elastic sheet and provided with a pair of leads, wherein the coil assembly is positioned in the magnetic gap;
a vibration plate coupled to the upper elastic sheet; and
a pair of electric connection plates combined with the upper elastic sheet or the vibration plate for electrically connecting the pair of leads;
the upper elastic sheet is provided with a vibrating plate combining part relative to the vibrating plate, and two pairs of upper elastic arms extend outwards from two ends of the vibrating plate combining part;
the two ends of the vibration plate combining part are further extended outwards to form two three-dimensional hollow elastic parts, the three-dimensional hollow elastic parts are provided with a pair of upper and lower bending elastic arms and a magnetic return edge strip, and the magnetic return edge strip is connected with the head ends of the pair of upper and lower bending elastic arms and combined with the magnetic return structure.
2. The vibration element of claim 1, wherein the lower elastic sheet has a magnetic return joint portion with respect to the magnetic return structure, and two planar elastic portions extend outwardly from both ends of the magnetic return joint portion.
3. The vibratory element of claim 2 wherein the planar spring is a planar hollow spring.
4. A vibratory element as claimed in claim 3 wherein the planar hollow spring has a pair of lower spring arms and a support frame rim connected to the head ends of the pair of lower spring arms for engagement with the bottom of the support frame.
5. The vibratory element of claim 4 wherein the bottom of the inner face of the support frame has a rim strip engaging surface formed opposite the rim strip of the support frame and a rim strip pressing bevel is formed upwardly from the rim strip engaging surface.
6. The vibratory element of claim 5 wherein the edge strip engagement plane is disposed at a height greater than the amplitude of the lower spring tab.
7. The vibratory element of claim 4 wherein the gyromagnetic coupling has two pairs of gyromagnetic positioning walls opposite the outer edges of the gyromagnetic structure, the two pairs of gyromagnetic positioning walls being located outside of the two ends of the gyromagnetic coupling.
8. The vibratory element of claim 1 wherein the vibratory plate joint has two pairs of vibratory plate positioning walls with respect to the outer edges of the vibratory plate.
9. The vibratory element of claim 8, wherein the two pairs of vibratory plate positioning walls are formed in a middle section of the vibratory plate junction, and wherein the middle section of the vibratory plate has two positioning wall grooves with respect to the two pairs of vibratory plate positioning walls.
10. The vibratory element of claim 4 wherein the pair of lower spring arms are curved such that the side edges of the pair of lower spring arms do not exceed the side edges of the pair of support brackets.
11. The vibratory element of claim 10 wherein the pair of lower spring arms exhibit an outwardly curved or S-curved shape.
12. A vibratory element as set forth in any one of claims 1 through 11 wherein the lower resilient sheet has a thickness less than the thickness of the upper resilient sheet.
13. A vibrating element as claimed in any one of claims 1 to 11 wherein the lower and upper resilient plates are of stainless steel, phosphor copper, beryllium copper or titanium.
14. A vibrating element as claimed in any one of claims 1 to 11 wherein the vibrating plate is bonded to the top surface of the upper resilient sheet, the pair of electrical connection plates are bonded to the top surface of the upper resilient sheet, and the vibrating plate has a pair of electrical connection plate recesses at opposite ends thereof.
15. The vibratory element of claim 14 wherein the upper resilient tab has a pair of first lead guides relative to the pair of leads and the pair of electrical connection plates has a pair of second lead guides relative to the pair of leads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910046528.5A CN109862493B (en) | 2019-01-18 | 2019-01-18 | Vibrating element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910046528.5A CN109862493B (en) | 2019-01-18 | 2019-01-18 | Vibrating element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109862493A CN109862493A (en) | 2019-06-07 |
| CN109862493B true CN109862493B (en) | 2023-12-08 |
Family
ID=66895145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910046528.5A Active CN109862493B (en) | 2019-01-18 | 2019-01-18 | Vibrating element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109862493B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010055235A (en) * | 1999-12-10 | 2001-07-04 | 송재인 | producing system of vibration and sound |
| CN1321035A (en) * | 2000-04-21 | 2001-11-07 | 株式会社西铁城电子 | Multifunctional converter capable of converting electric signal into vibration of element for portable electronic apparatus |
| TW200915898A (en) * | 2007-09-28 | 2009-04-01 | Tai-Yan Kam | Piston-type flat loudspeaker |
| CN201657279U (en) * | 2010-05-18 | 2010-11-24 | 歌尔声学股份有限公司 | Moving coil type electroacoustic converter |
| CN102056059A (en) * | 2011-01-05 | 2011-05-11 | 瑞声声学科技(深圳)有限公司 | Multifunctional acoustic generator |
| TW201309050A (en) * | 2011-08-03 | 2013-02-16 | Meiloon Ind Co Ltd | Internal support frame speaker structure |
| CN203301723U (en) * | 2013-05-28 | 2013-11-20 | 歌尔声学股份有限公司 | Micro sounding device |
| CN203661283U (en) * | 2013-12-13 | 2014-06-18 | 瑞声光电科技(常州)有限公司 | Electromagnetic driving apparatus |
| CN203984675U (en) * | 2014-07-31 | 2014-12-03 | 歌尔声学股份有限公司 | A kind of sonic transducer vibrating diaphragm and a kind of loud speaker |
| KR20160020592A (en) * | 2014-08-13 | 2016-02-24 | 주식회사 예일전자 | Sensory signal output apparatus |
| CN205510381U (en) * | 2015-12-31 | 2016-08-24 | 歌尔声学股份有限公司 | Multi -function device with vibration function and sound producing function |
| CN106100277A (en) * | 2016-07-21 | 2016-11-09 | 瑞声科技(新加坡)有限公司 | Linear electric machine |
| CN106973346A (en) * | 2017-01-22 | 2017-07-21 | 瑞声科技(新加坡)有限公司 | Electronic equipment |
| CN206963061U (en) * | 2017-07-19 | 2018-02-02 | 歌尔科技有限公司 | Centring disk and the loudspeaker with the centring disk |
| CN209435422U (en) * | 2019-01-18 | 2019-09-24 | 东莞顺合丰电业有限公司 | Vibrating elements |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITAN20130203A1 (en) * | 2012-11-08 | 2014-05-09 | Sipe Srl | ELECTRO-MAGNETIC TRANSDUCER AND VIBRATION CONTROL SYSTEM. |
| CN105101022B (en) * | 2015-08-25 | 2018-11-09 | 歌尔股份有限公司 | Vibration-sound generating device |
-
2019
- 2019-01-18 CN CN201910046528.5A patent/CN109862493B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010055235A (en) * | 1999-12-10 | 2001-07-04 | 송재인 | producing system of vibration and sound |
| CN1321035A (en) * | 2000-04-21 | 2001-11-07 | 株式会社西铁城电子 | Multifunctional converter capable of converting electric signal into vibration of element for portable electronic apparatus |
| TW200915898A (en) * | 2007-09-28 | 2009-04-01 | Tai-Yan Kam | Piston-type flat loudspeaker |
| CN201657279U (en) * | 2010-05-18 | 2010-11-24 | 歌尔声学股份有限公司 | Moving coil type electroacoustic converter |
| CN102056059A (en) * | 2011-01-05 | 2011-05-11 | 瑞声声学科技(深圳)有限公司 | Multifunctional acoustic generator |
| TW201309050A (en) * | 2011-08-03 | 2013-02-16 | Meiloon Ind Co Ltd | Internal support frame speaker structure |
| CN203301723U (en) * | 2013-05-28 | 2013-11-20 | 歌尔声学股份有限公司 | Micro sounding device |
| CN203661283U (en) * | 2013-12-13 | 2014-06-18 | 瑞声光电科技(常州)有限公司 | Electromagnetic driving apparatus |
| CN203984675U (en) * | 2014-07-31 | 2014-12-03 | 歌尔声学股份有限公司 | A kind of sonic transducer vibrating diaphragm and a kind of loud speaker |
| KR20160020592A (en) * | 2014-08-13 | 2016-02-24 | 주식회사 예일전자 | Sensory signal output apparatus |
| CN205510381U (en) * | 2015-12-31 | 2016-08-24 | 歌尔声学股份有限公司 | Multi -function device with vibration function and sound producing function |
| CN106100277A (en) * | 2016-07-21 | 2016-11-09 | 瑞声科技(新加坡)有限公司 | Linear electric machine |
| CN106973346A (en) * | 2017-01-22 | 2017-07-21 | 瑞声科技(新加坡)有限公司 | Electronic equipment |
| CN206963061U (en) * | 2017-07-19 | 2018-02-02 | 歌尔科技有限公司 | Centring disk and the loudspeaker with the centring disk |
| CN209435422U (en) * | 2019-01-18 | 2019-09-24 | 东莞顺合丰电业有限公司 | Vibrating elements |
Non-Patent Citations (3)
| Title |
|---|
| acoustic characteristics and distortion of an ionic loudspeaker;pablo martin gomez;《ieee latin america transactions》;全文 * |
| 直驱型热声发电系统的研究;王玉芳;《中国博士论文全文数据库工程科技II辑》;全文 * |
| 磁液的非流体特性对音圈运动的影响;徐世和;《电声技术》;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109862493A (en) | 2019-06-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4766052B2 (en) | Electroacoustic transducer | |
| KR101796094B1 (en) | Horizental vibration motor | |
| JP2007513567A (en) | Planar speaker with coil plate guide means | |
| US9426578B2 (en) | Electromagnetic transducer | |
| CN208638634U (en) | Loudspeaker | |
| KR20120011769A (en) | Magnet plate and base frame structure of flat type speaker | |
| CN109996159A (en) | Electroacoustic transducer | |
| JP2018118231A (en) | Vibration motor | |
| CN101119079B (en) | Triangle bended plate type piezoelectric straight line ultrasound electric motor | |
| JP6966831B2 (en) | Vibration actuator | |
| CN109862493B (en) | Vibrating element | |
| CN209435422U (en) | Vibrating elements | |
| US20110110542A1 (en) | Piezoelectric exciter and piezoelectric exciter unit | |
| TWI688191B (en) | Vibration element | |
| CN114930874A (en) | Linear vibration actuator with moving coil and moving magnet | |
| CN209516886U (en) | Vibrating motor and haptic apparatus | |
| CN205430018U (en) | Linear vibrating motor | |
| JP2019013090A (en) | Actuator | |
| CN115209295A (en) | Osteoacusis vibration sound generating mechanism, osteoacusis glasses and wearable equipment | |
| JP5677780B2 (en) | Ultrasonic transceiver | |
| CN213280079U (en) | Anti-vibration loudspeaker | |
| WO2020170938A1 (en) | Vibration device | |
| KR101690263B1 (en) | Speaker using dynamic speaker and two piezoelectric elements | |
| JP2005236844A (en) | Electroacoustic transducer | |
| KR102277662B1 (en) | The linear vibration motor and that manufacturing method |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |