CN102682755A - Piezo-buzzer - Google Patents
Piezo-buzzer Download PDFInfo
- Publication number
- CN102682755A CN102682755A CN2012100540922A CN201210054092A CN102682755A CN 102682755 A CN102682755 A CN 102682755A CN 2012100540922 A CN2012100540922 A CN 2012100540922A CN 201210054092 A CN201210054092 A CN 201210054092A CN 102682755 A CN102682755 A CN 102682755A
- Authority
- CN
- China
- Prior art keywords
- vibrating plate
- register
- piezoelectric vibrating
- piezoelectric
- resonant chamber
- 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.)
- Granted
Links
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 7
- 239000011810 insulating material Substances 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 description 11
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 230000008719 thickening Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
Provided is a piezo-buzzer. A register (7) is arranged on an inner side of a resonance room (8) but not on a surface side of a piezoelectric vibrating plate (2). Accordingly, on the surface side of the piezoelectric vibrating plate (2), a size equivalent to a thickness of the register (7) can be estimated not in a normal direction of the piezoelectric vibrating plate (2), which can prevent the piezo-buzzer from becoming thicker in the normal direction. Besides, the register (7) and leading wires (5, 6) are nor arranged side by side, which can shorten longitudinal dimension of the piezo-buzzer. In particular, the register (7) is arranged on an inner side of the resonance room (8), and a stacked structure between the piezoelectric vibrating plate (2) and the register (7) observed from a normal of the piezoelectric vibrating plate (2), which can further shorten the longitudinal dimension of the piezo-buzzer. As a result, the piezo-buzzer can be minimized even the register (7) is not built in.
Description
Technical field
The present invention relates to piezoelectric vibrating plate and terminal are electrically connected, and come to apply the piezoelectric buzzer that alternating voltage moves the piezoelectric vibrating plate ring to piezoelectric vibrating plate through the terminal.
Background technology
In the past, for example disclosing piezoelectric buzzer in the patent documentation 1～3.In this patent documentation 1～3, in the piezoelectric buzzer of record, adopt following structure, an end of fixed guide spring and the other end of this guide springs is secured to piezoelectric vibrating plate through welding on the end at the terminal that is electrically connected of also carrying out with the outside.The rear side of the piezoelectric vibrating plate in the shell of piezoelectric buzzer is that the opposing face side of the face side of fixed guide spring forms resonant chamber, obtains the sound of expected frequency through the resonance in the resonant chamber.
Connection, disconnection that the piezoelectric buzzer that as above-mentioned, constitutes applies through the voltage under the driving frequency pipe, still, if do not discharge when breaking off at the electric charge of piezoelectric ceramics charging will not connect the time then can not make piezoelectric vibrating plate work.Therefore; Must possess electric charge register discharge, that become discharge resistance when breaking off that makes in the piezoelectric ceramics charging; But if electronic-controlled installation (ECU) side of the piezoelectric buzzer that possesses being independent of piezoelectric buzzer control usefulness possesses register, then discharge path is elongated; Receive Effects of Noise etc., the result brings into play function as antenna.Therefore, in the piezoelectric buzzer of patent documentation 1～3 record, built-in register, in the face side of piezoelectricity discharge electrode, with guide springs in abutting connection with ground configuration register.Through as above-mentioned in piezoelectric buzzer built-in register; And can be with the electric charge discharge when breaking off in the piezoelectric ceramics charging; Perhaps will impact the electric charge oneself that produces at piezoelectric vibrating plate and digest, can obtain to prevent the effect of the fault of piezoelectric vibrating plate because of falling etc.
Patent documentation 1: TOHKEMY 2007-256329 communique;
Patent documentation 2: TOHKEMY 2009-168845 communique;
Patent documentation 3: TOHKEMY 2010-237473 communique.
But shown in above-mentioned patent documentation 1～3, in built-in register of piezoelectric buzzer and the structure at the face side configuration register of piezoelectric vibrating plate, the space of configuration piezoresistance becomes big, becomes the obstacle of the miniaturization of piezoelectric buzzer.
Summary of the invention
The present invention makes in view of the above problems, even its objective is the piezoelectric buzzer that provides built-in register also can realize further miniaturization.
For realizing above-mentioned purpose, in first example of the present invention, a kind of piezoelectric buzzer is characterized in that, possesses: the shell main body, and it has bottom surface and perisporium, constitutes resonant chamber with perisporium, and is formed with the louver of emitting at the sound of resonant chamber resonance in the bottom surface; Piezoelectric vibrating plate, it is fixing covering resonant chamber in the shell main body, the surface towards the outside of resonant chamber and the back side towards the inboard of resonant chamber; Register, its formation carry out the discharge resistance in the discharge of the electric charge of piezoelectric vibrating plate charging; And the terminal, it carries out the electrical connection of the outside of piezoelectric vibrating plate and register and shell main body, and register disposes in resonant chamber.
If at the inboard configuration register of resonant chamber, then register can be in the face side configuration of piezoelectric vibrating plate as above-mentioned.Therefore,, can on the normal direction of piezoelectric vibrating plate, not estimate the size suitable, can prevent on this direction, to make the piezoelectric buzzer thickening with the thickness of register in the face side of piezoelectric vibrating plate.Therefore, even built-in register also can be realized piezoelectric buzzer.
For example, such like second example of the present invention, dispose overlappingly from the normal direction observation register and the piezoelectric vibrating plate of piezoelectric vibrating plate.
If as above-mentioned with register in the inboard of resonant chamber configuration and be configured to from the normal direction of piezoelectric vibrating plate observe piezoelectric vibrating plate and register overlapping, then can further shorten the longitudinal size of piezoelectric buzzer.Therefore, can further realize the miniaturization of piezoelectric buzzer.
In addition, as the 3rd example of the present invention, through the terminal insert moulding is constituted the shell main body; The terminal bifurcated is a plurality of; First leading section wherein becomes and outside splicing ear, and second leading section exposes from the inboard of resonant chamber, and this leading section that exposes is connected with register.
In addition, as the 4th example of the present invention, the 3rd leading section in the terminal exposes from the shell main body in the face side of piezoelectric vibrating plate, exposes the place at this, and the terminal is connected through lead-in wire with piezoelectric vibrating plate.
Description of drawings
Fig. 1 is the figure of the piezoelectric buzzer that relates to of expression first embodiment of the present invention, and Fig. 1 (a), Fig. 1 (b) are the stereographic maps when observing piezoelectric buzzer from different directions, and Fig. 1 (c) is the front view of piezoelectric buzzer, and Fig. 1 (d) is the left view of piezoelectric buzzer.
Fig. 2 is the decomposition front view of piezoelectric buzzer shown in Figure 1.
Fig. 3 is the exploded perspective view of piezoelectric buzzer shown in Figure 1.
Fig. 4 is expression is connected to the shell main body under the state at terminal with the terminal insert moulding and with register figure, and Fig. 4 (a) is a stereographic map, and Fig. 4 (b) is a front view, and Fig. 4 (c) is a left view.
Fig. 5 is the figure at expression terminal, and Fig. 5 (a) is a stereographic map, and Fig. 5 (b) is a front view, and Fig. 5 (c) is a left view.
Embodiment
According to accompanying drawing embodiment of the present invention is described below.Have again, at each following embodiment to each other,, mark same tag in the drawings in mutual part identical or of equal value.
(first embodiment)
Fig. 1 is the figure of the piezoelectric buzzer that relates to of this embodiment of expression, and Fig. 1 (a), Fig. 1 (b) are the stereographic maps when observing piezoelectric buzzer from different directions, and Fig. 1 (c) is the front view of piezoelectric buzzer, and Fig. 1 (d) is the left view of piezoelectric buzzer.Fig. 2 is the decomposition front view of piezoelectric buzzer shown in Figure 1.Fig. 3 is the exploded perspective view of piezoelectric buzzer shown in Figure 1.Come with reference to the accompanying drawings the piezoelectric buzzer that this embodiment relates to is described.
Like Fig. 1～shown in Figure 3, piezoelectric buzzer is employed in the structure that places various component parts in the shell 1.Shell 1 adopts the formation with shell main body 11 and lid 12, constitutes through under the state of the component parts of shell main body 11 having been assembled piezoelectric buzzer, covering 12 embedding shell main bodys 11.In the component parts of piezoelectric buzzer, have piezoelectric vibrating plate 2, terminal 3,4, lead-in wire 5,6 and register (discharge resistance) 7, these parts are in 11 assemblings of shell main body.
Shell main body 11 and lid 12 are made up of insulating material such as for example resins, become rectangular shape substantially.Shell main body 11 is formed with terminal 3,4 through insert moulding.And; To behind 3, the 4 connection registers 7 of the terminal of shell main body 11 insert mouldings; Piezoelectric vibrating plate 2 is fixing, and then, will go between 5,6 electrical connections and physical connection are to the terminal 3,4 and piezoelectric vibrating plate 2; Then cover, thereby in shell 1, place formation piezoelectric buzzer under the state of each component parts with cover 12.
Fig. 4 is expression is connected to the shell main body 11 under the state at terminal 3,4 with terminal 3,4 insert mouldings and with register 7 figure, and Fig. 4 (a) is a stereographic map, and Fig. 4 (b) is a front view, and Fig. 4 (c) is a left view.In addition, Fig. 5 is the figure at expression terminal 3,4, and Fig. 5 (a) is a stereographic map, and Fig. 5 (b) is a front view, and Fig. 5 (c) is a left view.
As shown in Figure 4, shell main body 11 adopts following structure, has: bottom surface 11a; The outstanding in vertical direction perisporium 11b of 11a from the bottom surface; With the connecting portion 11c that gives prominence to a direction from perisporium 11b.
11a is formed with louver 11d in the bottom surface of shell main body 11.Perisporium 11b has the drum part to surround louver 11d, constitutes resonant chamber 8 by part of the drum among the perisporium 11b and bottom surface 11a, and piezoelectric vibrating plate 2 is fixing to cover this resonant chamber 8.And the sound that produces the resonance gain because of the resonance effect of resonant chamber 8 is through louver 11d output, thereby carries out the sounding to the outside.
As shown in Figure 3, possess fastener 11e near in the perisporium 11b of shell main body 11 and boundary position bottom surface 11a.In addition, lid in 12, the position corresponding with the fastener 11e of shell main body 11 possess hook portion 12a.Through this type of formation; When lid 12 embeds shell main body 11; Hook portion 12a contacts with fastener 11e and to lid 12 inboard elastic deformation, then, and when crossing over fastener 11e; Recuperability through hook portion 12a makes hook portion 12a articulate at fastener 11e, and each component parts will cover 12 by lid 12 coverings and be assembled into shell main body 11.
Have again, adopt following structure, possess brace 12b,, carry out fixing the mounting object thing through brace 12b being embedded the not shown connecting hole that mounting object things such as car body are possessed at the outer wall that covers 12.
As shown in Figures 2 and 3, piezoelectric vibrating plate 2 is made up of the thin plate of toroidal.Particularly, the formation of piezoelectric vibrating plate 2 comprises: the sheet metal 2a that is made up of the thin plate of toroidal; With the piezoelectric ceramic plate 2b that constitutes by the circular sheet of firing silver paste at the surperficial back side than the little circle of sheet metal 2a.And sheet metal 2a and piezoelectric ceramic plate 2b are through the conductive layer of the rear side of piezoelectric ceramic plate 2b and be electrically connected.These piezoelectric vibrating plate 2 its piezoelectric ceramic plate 2b sides are that surface and sheet metal 2a side are the back side, and this piezoelectric vibrating plate 2 overleaf with the perisporium 11b of shell main body 11 in the part of formation resonant chamber 8 bonding, thereby fixing in shell main body 11.
As shown in Figure 5, the line symmetrical structure is adopted at terminal 3,4, and bifurcated is a plurality of as above-mentioned, with each leading section 3a～3c, 4a～4c bending machining, thereby towards the direction of expecting.
Shown in Fig. 4 (c), wherein first leading section 3a, 4a expose from shell main body 11 in the inside of connecting portion 11c, are used as the splicing ear with the outside.Second leading section 3b, 4b expose from shell main body 11 in the face side of piezoelectric vibrating plate 2, are used for and lead-in wire 5,6 be electrically connected.Shell main body 11 is separated into the inboard and the outside that becomes the opposition side of resonant chamber 8 of resonant chamber 8 through piezoelectric vibrating plate 2, still, the outside of resonant chamber 8 therein, leading section 3b, 4b become outstanding state.This leading section 3b, 4b are formed with slit.The 3rd leading section 3c, 4c expose in the inboard of resonant chamber 8 in the rear side of piezoelectric vibrating plate 2, are used for being electrically connected with register 7.Also be provided with slit at this leading section 3c, 4c.
Lead-in wire 5 carries out the electrical connection of the piezoelectric ceramic plate 2b of terminal 3 and piezoelectric vibrating plate 2, and lead-in wire 6 carries out the electrical connection of the sheet metal 2a of terminal 4 and piezoelectric vibrating plate 2.As shown in Figures 2 and 3, lead-in wire 5,6 one ends are connected with leading section 3b, the 4b at terminal 3,4, and the other end is connected with sheet metal 2a with piezoelectric ceramic plate 2b.Being connected through implementing to weld in the slit of for example will go between 5,6 embedding leading section 3b, 4b and in the front of lead-in wire 5,6 of the leading section 3b at lead-in wire 5,6 and terminal 3,4,4b carried out.In addition, lead-in wire 5,6 and piezoelectric ceramic plate 2b and sheet metal 2a be connected through for example 5,6 the other end of will go between be configured in piezoelectric ceramic plate 2b and sheet metal 2a the surface state down enforcement weld and carry out.
Through the structure of above that kind, and constituted piezoelectric buzzer of the present invention.In this type of piezoelectric buzzer, become the structure that in resonant chamber 8, possesses register 7.Therefore, the amount that can dwindle so that register 7 is not configured in the face side of piezoelectric vibrating plate 2 realizes the miniaturization of piezoelectric buzzer.
Promptly; Register 7 is being configured under the situation in resonant chamber 8 outsides; As existing structure; Register 7 is at the face side of piezoelectric vibrating plate 25,6 adjoining positions that are configured in and go between, be specially the terminal 3,4 that clamping lead-in wire 5,6 connects leading section 3b, 4b and in the opposition side configuration of piezoelectric vibrating plate 2.Under this situation,, must estimate and the sizable size of thickness of register 7 that on the normal direction of piezoelectric vibrating plate 2 piezoelectric buzzer is thickening on this direction in the face side of piezoelectric vibrating plate 2.In addition, because with register 7 and lead-in wire 5,6 and row arrangement, so the longitudinal size of piezoelectric buzzer is elongated.Therefore, can not make piezoelectric buzzer miniaturization fully.
Relative with it, if as this embodiment at the inboard configuration register 7 of resonant chamber 8, then register 7 can be in the face side configuration of piezoelectric vibrating plate 2.Therefore,, can on the normal direction of piezoelectric vibrating plate 2, not estimate and the sizable size of thickness of register 7, can prevent piezoelectric buzzer thickening on this direction in the face side of piezoelectric vibrating plate 2.In addition, owing to become the not structure of row arrangement also of register 7 and lead-in wire 5,6, therefore can shorten the longitudinal size of piezoelectric buzzer.Especially, register 7 is configured in the inboard of resonant chamber 8, observes from the normal direction of piezoelectric vibrating plate 2, piezoelectric vibrating plate 2 dispose with register 7 overlappingly, so can further shorten the longitudinal size of piezoelectric buzzer.Therefore, even also can make piezoelectric buzzer miniaturization fully with register 7 is built-in.
Have, resonant chamber 8 decision volumes and size wait the sound that obtains expected frequency, still, even register 7 is set, also can obtain the sound of expected frequency again.Therefore, through inboard configuration register 7 at resonant chamber 8, and can be in the miniaturization of sound that obtains expected frequency and realization piezoelectric buzzer.
(other embodiment)
For the shape of the piezoelectric buzzer of representing in the above-described embodiment, for example the shape of the shape of shell 1 and resonant chamber 8 has only been enumerated a simple instance, also can suitably change design.For example; Though make the perisporium 11b of the shell main body 11 that constitutes resonant chamber 8 become drum (making the internal face section) for round-shaped substantially; But,, therefore also can become drum because resonance effect is confirmed the frequency of resonance basically according to volume; For example, can become polygon barrel shape or cylindroid shape.
In addition, though shell main body 11 is made as the structure that insert moulding has terminal 3,4,, also can be with terminal 3,4 through being pressed into etc. to 11 assemblings of shell main body.
Claims (4)
1. a piezoelectric buzzer is characterized in that,
Possess:
Shell main body (11) has bottom surface (11a) and perisporium (11b), constitutes resonant chamber (8) with said perisporium (11b), and (11a) is formed with the louver (11d) of emitting at the sound of said resonant chamber (8) resonance in said bottom surface;
Piezoelectric vibrating plate (2) is fixed in said shell main body (11), covering said resonant chamber (8), the surface of this piezoelectric vibrating plate towards the outside of said resonant chamber (8) and the back side towards the inboard of said resonant chamber (8);
Register (7), formation carry out the discharge resistance in the discharge of the electric charge of said piezoelectric vibrating plate (2) charging; With
The electrical connection of the outside of said piezoelectric vibrating plate (2) and said register (7) and said shell main body (11) is carried out at terminal (3,4),
Said register (7) disposes in said resonant chamber (8).
2. piezoelectric buzzer according to claim 1 is characterized in that,
Said register (7) is observed with said piezoelectric vibrating plate (2) from the normal direction of said piezoelectric vibrating plate (2) and is disposed overlappingly.
3. piezoelectric buzzer according to claim 1 and 2 is characterized in that,
Said shell main body (11) is made up of the insulating material with said terminal (3,4) insert moulding,
Said terminal (3,4) bifurcated is a plurality of; The leading section of wherein first (3a, 4a) becomes and outside splicing ear; Second leading section (3b, 4b) exposes from the inboard of said resonant chamber (8), and this leading section that exposes (3b, 4b) is connected with said register (7).
4. piezoelectric buzzer according to claim 3 is characterized in that,
The 3rd leading section (3c, 4c) in the said terminal (3,4) exposes from said shell main body (11) in the face side of said piezoelectric vibrating plate (2), exposes the place at this, and said terminal (3,4) are connected through lead-in wire (5,6) with said piezoelectric vibrating plate (2).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP047960/2011 | 2011-03-04 | ||
| JP2011047960A JP5589902B2 (en) | 2011-03-04 | 2011-03-04 | Piezoelectric buzzer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102682755A true CN102682755A (en) | 2012-09-19 |
| CN102682755B CN102682755B (en) | 2016-04-06 |
Family
ID=46814572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210054092.2A Active CN102682755B (en) | 2011-03-04 | 2012-03-02 | Piezoelectric buzzer |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5589902B2 (en) |
| KR (1) | KR101811455B1 (en) |
| CN (1) | CN102682755B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104347062A (en) * | 2013-07-26 | 2015-02-11 | 安电株式会社 | An electric device |
| CN104424940A (en) * | 2013-08-19 | 2015-03-18 | 安电株式会社 | Piezoelectric buzzer |
| CN113674726A (en) * | 2020-05-15 | 2021-11-19 | 本田制锁有限公司 | Buzzer device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105336316A (en) * | 2015-11-16 | 2016-02-17 | 肇庆奥迪威传感科技有限公司 | Low-frequency buzzer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58191798U (en) * | 1982-06-15 | 1983-12-20 | 丸子警報器株式会社 | piezoelectric buzzer |
| JPH10150697A (en) * | 1996-11-20 | 1998-06-02 | Hokuriku Electric Ind Co Ltd | Piezoelectric sounding device |
| JP2007256329A (en) * | 2006-03-20 | 2007-10-04 | Anden | Piezoelectric buzzer |
| JP2009168845A (en) * | 2008-01-10 | 2009-07-30 | Anden | Piezoelectric buzzer |
| JP2010237473A (en) * | 2009-03-31 | 2010-10-21 | Anden | Piezoelectric buzzer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5917699U (en) * | 1982-07-23 | 1984-02-02 | 株式会社村田製作所 | Piezoelectric buzzer with auxiliary sound emitting hole |
| JPH0271299A (en) * | 1988-09-06 | 1990-03-09 | Matsushita Electric Ind Co Ltd | Buzzer sounding device |
-
2011
- 2011-03-04 JP JP2011047960A patent/JP5589902B2/en active Active
-
2012
- 2012-03-02 CN CN201210054092.2A patent/CN102682755B/en active Active
- 2012-03-02 KR KR1020120021978A patent/KR101811455B1/en active IP Right Grant
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58191798U (en) * | 1982-06-15 | 1983-12-20 | 丸子警報器株式会社 | piezoelectric buzzer |
| JPH10150697A (en) * | 1996-11-20 | 1998-06-02 | Hokuriku Electric Ind Co Ltd | Piezoelectric sounding device |
| JP2007256329A (en) * | 2006-03-20 | 2007-10-04 | Anden | Piezoelectric buzzer |
| JP2009168845A (en) * | 2008-01-10 | 2009-07-30 | Anden | Piezoelectric buzzer |
| JP2010237473A (en) * | 2009-03-31 | 2010-10-21 | Anden | Piezoelectric buzzer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104347062A (en) * | 2013-07-26 | 2015-02-11 | 安电株式会社 | An electric device |
| CN104424940A (en) * | 2013-08-19 | 2015-03-18 | 安电株式会社 | Piezoelectric buzzer |
| CN104424940B (en) * | 2013-08-19 | 2019-08-09 | 安电株式会社 | Piezo buzzer |
| CN113674726A (en) * | 2020-05-15 | 2021-11-19 | 本田制锁有限公司 | Buzzer device |
| CN113674726B (en) * | 2020-05-15 | 2024-05-31 | 美蓓亚智连科创零件有限公司 | Buzzer device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20120100824A (en) | 2012-09-12 |
| JP2012185298A (en) | 2012-09-27 |
| KR101811455B1 (en) | 2017-12-21 |
| CN102682755B (en) | 2016-04-06 |
| JP5589902B2 (en) | 2014-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102007673B (en) | Insulating housing for motor terminal | |
| JP2008152442A (en) | Card adapter | |
| CN102682755A (en) | Piezo-buzzer | |
| CN103050793A (en) | Electrical coaxial connector | |
| US9960745B2 (en) | Noise filter and wire harness | |
| CN103828395A (en) | Ultrasonic sensor | |
| US10971844B2 (en) | Connector including conductive voltage detection terminal branching from conduction path | |
| EP2348560B2 (en) | Battery contact spring | |
| CN104062067B (en) | Measurement plug and the method for assembling measurement plug | |
| CN110610808B (en) | Capacitor, capacitor assembly and kit | |
| CN103135112A (en) | Ultrasonic sensor and manufacturing method thereof | |
| JP6375681B2 (en) | Filter element built-in connector | |
| CN103959819A (en) | Ultrasonic transducer and multi-feed detection sensor | |
| US9363345B2 (en) | Cover for mobile electronic device, and mobile electronic apparatus employing same | |
| KR101491508B1 (en) | Ultrasonic transducer | |
| JP2020187978A (en) | Bus bar module | |
| CN107211220B (en) | Ultrasonic sensor | |
| CN106134221A (en) | Ultrasonic sensor | |
| CN105814706B (en) | For being in electrical contact the device and laminated piezoelectric and its manufacturing method of laminated piezoelectric | |
| CN220873708U (en) | Battery and battery device | |
| CN210894405U (en) | Piezoelectric acceleration sensor | |
| CN214960035U (en) | Directional microphone | |
| JP2009060055A (en) | Semiconductor device, its manufacturing method, mold resin body, pre-mold package, and microphone chip package | |
| JP6912277B2 (en) | Battery pack | |
| CN105513865A (en) | Magnetic type input device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |