CN103621112B - Piezoelectric vibration element - Google Patents
Piezoelectric vibration element Download PDFInfo
- Publication number
- CN103621112B CN103621112B CN201280031092.9A CN201280031092A CN103621112B CN 103621112 B CN103621112 B CN 103621112B CN 201280031092 A CN201280031092 A CN 201280031092A CN 103621112 B CN103621112 B CN 103621112B
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- CN
- China
- Prior art keywords
- aforementioned
- piezoelectric
- extension
- pair
- piezoelectric transducer
- 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.)
- Expired - Fee Related
Links
- 230000000630 rising effect Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 6
- 241000222712 Kinetoplastida Species 0.000 claims description 4
- 230000033228 biological regulation Effects 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 2
- 229910052683 pyrite Inorganic materials 0.000 description 2
- 239000011028 pyrite Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0603—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a piezoelectric bender, e.g. bimorph
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
- H10N30/204—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using bending displacement, e.g. unimorph, bimorph or multimorph cantilever or membrane benders
- H10N30/2041—Beam type
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/80—Constructional details
- H10N30/88—Mounts; Supports; Enclosures; Casings
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
Abstract
The present invention provides a kind of piezoelectric vibration element that can obtain the biggest vibration.A pair extension not engaging piezoelectric element is formed at the two ends of the long side direction of oscillating plate.Supporter is formed a pair supporting part of a pair extension supporting oscillating plate.A pair contact chip that supporting part has a surface with extension and the inside contacts, and, extension is supported into and allows when piezoelectric element stretches extension to swing centered by the contact portion of a pair contact chip.
Description
Technical field
The present invention relates to piezoelectric vibration element.
Background technology
Japanese Unexamined Patent Publication 2000-305573 publication (patent documentation 1) discloses to be possessed by thin
The piezoelectric transducer that the barrier film of tabular is constituted with the piezoelectric element being secured on barrier film and a bulging
The piezoelectric vibration element used in the housing of electric oscillator and the piezoelectric pump of cap assembly.Patent
The cross section substantially U formed by housing and cap assembly is inserted at both ends by the piezoelectric transducer of document 1
In the space of font, housing and cap assembly support.
Citation
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2000-305573 publication
In the support structure of the conventional piezoelectric vibration element shown in patent documentation 1, will pressure
The cross section formed by housing and cap assembly substantially U-shaped is inserted at the both ends of electric oscillator respectively
In space, support both ends.In the support structure of such piezoelectric vibration element, become
The state that the both ends of piezoelectric transducer are substantially fixed.To this end, because piezoelectric transducer
Both ends are basically unchanged shape, so, hinder the vibration of piezoelectric transducer, it is impossible to increase piezoelectricity and shake
The vibration of kinetoplast.To this end, the use that in the past piezoelectric vibration element can be used as vibration source
Way is restricted.
It is an object of the invention to provide a kind of piezoelectric type vibration that can obtain the biggest vibration
Element.
Summary of the invention
The present invention engages one to possess on the surface of elongated oscillating plate and at least one party of the inside
The piezoelectric transducer of individual above piezoelectric element and support propping up of piezoelectric transducer for vibration
The piezoelectric vibration element of support body is as the object improved.The oscillating plate of piezoelectric transducer is on long limit
The two ends in direction possess a pair extension not engaging piezoelectric element.Supporter possesses support vibration
A pair supporting part of plate.And, a pair supporting part have respectively with the surface of extension and in
A pair contact chip of face contact, and has when piezoelectric element stretches, it is allowed to extension with
The structure of extension is swingingly supported centered by the contact portion of a pair contact chip.The application explanation
In book, the meaning of " extension is to swing centered by the contact portion of a pair contact chip " is to extend
Contact point at the 2 of the surface in portion and the inside and a pair contact chip respectively becomes the table of extension
Face and the oscillation center of the inside.
According to the present invention, owing to being engaged the piezoelectric element of piezoelectric transducer by a pair supporting part support
The two ends of oscillating plate, so, there is not the flexible situation of constraint piezoelectric element.It addition,
Due to oscillating plate two ends respectively by can by with the contact portion of a pair contact chip centered by swing
State supported, so, be substantially not present the motion quilt of oscillating plate when piezoelectric element stretches
The situation of constraint.Its result is, can maximally utilise the vibration produced by piezoelectric transducer,
The purposes as vibration source of piezoelectric vibration element can be expanded.
Piezoelectric element can also be separately positioned on surface and the inside of oscillating plate.If because as this
Sample is constituted, then can be using the piezoelectric element of the surface being arranged on oscillating plate and the inside all as shaking
Movable property source of students, so, the vibration of piezoelectric vibration element can be increased.
Preferably a pair contact chip of supporting part is by the contact contacted with the surface or the inside of extension
Extension facing to oscillating plate becomes convex flexure plane and constitutes.If constituting a pair contact chip like this,
The then basis of the contact area on the surface or the inside that can reduce a pair contact chip and extension
On, there is not yet the situation that stress is concentrated to contact site.Its result is, because of by a pair contact
The region that extension is fettered by sheet diminishes, and, the extension of a pair contact chip and oscillating plate it
Between contact resistance diminish, thus it is possible to make the motion at the two ends of oscillating plate smooth and easy, make piezoelectricity
The vibration of type vibrating elements is bigger.
Additionally, it is preferred that a pair contact chip is configured to face-to-face through extension.If constituting like this,
Then can guarantee the hunting range of extension to greatest extent.
Structure as concrete supporter, it is possible to make possess and the interval of piezoelectric transducer
Open the main part being spaced in long side direction extension of regulation and the two ends of the long side direction from main part
The structure of the rising portion holded up.In this case, the leading section in rising portion arranges supporting part.
If constituting supporter like this, then can be using main part as overall the consolidating of piezoelectric vibration element
Determining portion to utilize, the installation of piezoelectric vibration element becomes easy.
Supporter can be formed integrally by a metallic plate warpage.If constituting like this, then
Number of parts when manufacturing piezoelectric vibration element can be reduced, it is possible to be manufactured inexpensively piezo-electric type
Vibrating elements.
In the case of the vibration of piezoelectric vibration element to be made is bigger, it is also possible to do not hinder piezoelectricity
The telescopically installation weight member on piezoelectric transducer of pendulum.If installing such counterweight part
Part, then can be made the inertia force of piezoelectric vibrating plate become big by weight member, increase amplitude.It addition,
Good is long side direction that weight member is arranged on that the amplitude of vibration is maximum piezoelectric transducer
Central part.
Weight member such as can be arranged on by the clamping part clipping piezoelectric transducer at thickness direction
On piezoelectric transducer.If because constituting like this, the most there is not weight member and piezoelectric transducer
Become the situation of stationary state completely, thus it is possible to the existence of suppression weight member becomes resistance
Hinder the situation of the main cause of the deformation of piezoelectric transducer.
Weight member can be positioned at the thickness direction both sides of piezoelectric transducer, and become and be shaped as
And a pair heavy punch piece that the interval between piezoelectric transducer expands along with a pair extension of whereabouts and company
The structure that knot is integrally forming.If constituting weight member like this, the most there is not weight member
The situation of obstacle for the deformation of piezoelectric transducer.
Weight member can also be configured to only piezoelectric transducer with supporter not in opposite directions
Side, face has heavy punch piece.In this case weight member is positioned at the thickness direction of piezoelectric transducer
One side, and become by linking part link the interval that is shaped as between piezoelectric transducer along with
Heavy punch piece that a pair extension of whereabouts expands and with piezoelectric transducer not with the master of supporter
The holding piece of the middle body contact in body face in opposite directions and the structure that is integrally forming.So,
Because there is no heavy punch piece between supporter and oscillating plate, so, do not exist be positioned at supporter and
Heavy punch piece between oscillating plate contacts with supporter because of the deformation of oscillating plate, limits oscillating plate
The situation of deformation.To this end, the vibration of desired size can positively be obtained.
Accompanying drawing explanation
Fig. 1 is the front view of the piezoelectric vibration element of one embodiment of the present invention.
Fig. 2 is the upward view of the piezoelectric vibration element shown in Fig. 1.
Fig. 3 is the rearview of the piezoelectric vibration element shown in Fig. 1.
Fig. 4 is the enlarged drawing of the 1st supporting part.
Fig. 5 is the figure of the variation representing supporting part.
Fig. 6 is the rearview of the piezoelectric vibration element of other embodiments of the present invention.
Detailed description of the invention
Below, referring to the drawings, the example to the embodiment of the piezoelectric vibration element of the present invention
Illustrate.Fig. 1 is to represent this reality that can use as the vibrator being built in mobile phone
Execute the front view of the piezoelectric vibration element of mode.Fig. 2 and Fig. 3 represents shown in Fig. 1 respectively
The upward view of piezoelectric vibration element and rearview.It addition, in Fig. 1 to Fig. 3, for
Easy to understand and depict a part of gauge turgidly.The piezo-electric type of present embodiment shakes
Dynamic element 1 have piezoelectric transducer 3, the weight member 5 being arranged on this piezoelectric transducer 3,
Support the supporter 7 of piezoelectric transducer 3.
Piezoelectric transducer 3 has the 1st piezoelectric element 11 that oscillating plate 9 engages with oscillating plate 9
With the 2nd piezoelectric element 13.Oscillating plate 9 has elongated rectangular plate shape, by by ferrum
The metallic plate that-nickel alloy (42 alloy), pyrite etc. are constituted is formed, and this is elongated rectangular
Plate shape has surface 9a and the inside 9b.In the present embodiment, on the surface of oscillating plate 9
9a engages the 1st piezoelectric element 11, and inside 9b engages the 2nd piezoelectric element 13.Therefore, originally
The piezoelectric vibration element of embodiment is the piezoelectric vibration element of bimorph type.
1st piezoelectric element the 11 and the 2nd piezoelectric element 13 and the surface 9a of oscillating plate 9 and inner
Face 9b is bonded at the two ends of oscillating plate 9 a pair extension 15 and 17 of remaining.1st piezoelectricity
Element 11 is alternately to be laminated into have on surface by multiple piezoceramics layers and electrode layer not scheme
The 1st electrode illustrated, and inside there are many laminations of the structure of the 2nd not shown electrode
Electric device.1st piezoelectric element 11 is by the surface of the 2nd not shown electrode Yu oscillating plate 9
9a can engage in the conducting of electrical resistance ground, and is bonded at oscillating plate 9 with the surface 9a of oscillating plate 9
Surface remaining elongated surfaces 15a of extension 15 and 17 and 17a.It addition, the 2nd pressure
Electric device 13, as the 1st piezoelectric element 11, is also to have multiple piezoceramics layers and electricity
Pole layer is alternately laminated into has the 1st not shown electrode on surface, and inside has not
The multilayer piezoelectric element of the structure of the 2nd electrode illustrated.2nd piezoelectric element 13 is by not shown
The 2nd electrode gone out can turn on to electrical resistance joint, and and oscillating plate with the inside 9b of oscillating plate 9
The inside 9b of 9 be bonded into oscillating plate 9 the inside 9b both ends remaining extension 15 and
Elongated surfaces 15b of 17 and 17b.It addition, in the present embodiment, as the 1st and
2 piezoelectric elements 11,13, use multilamellar (stacking) piezoelectric element, but as piezoelectric element,
Single layer piezoelectric element can also be used.Piezoelectric transducer 3 is by by described later the one of supporter 7
Supporting part is supported the extension 15 and 17 of oscillating plate 9, and is supported on for vibration and props up
On support body 7.It addition, weight member installed by the central part at the long side direction of piezoelectric transducer 3
5。
Weight member 5 possesses by pyrite, tungsten, is mixed into metal dust, improves the resin of proportion
Deng a pair heavy punch piece 19 and 21 constituted, the side of a pair heavy punch piece 19 and 21 is existed
The linking part 22 that the middle body of their long side direction links.Weight member 5 is by by a counterweight
The clamping part 23 that the middle body of hammer leaf 19 and 21 and linking part 22 are constituted is arranged on piezoelectricity
On pendulum 3, clip piezoelectric transducer 3 from the both sides of thickness direction.In the present embodiment,
Heavy punch piece 19 and heavy punch piece 21 are configured to heavy punch piece the 19 and the 1st piezoelectric element 11 in opposite directions,
Heavy punch piece the 21 and the 2nd piezoelectric element 13 is in opposite directions.Therefore, heavy punch piece 19 and heavy punch piece 21
It is positioned at the thickness direction both sides of piezoelectric transducer 3.A pair heavy punch piece 19 and 21 is respectively by shape
Become and be shaped as its width dimensions and piezoelectric element in terms of the thickness direction of piezoelectric transducer 3
Width dimensions is roughly the same, long than the long side direction of piezoelectric element of the length dimension of long side direction
The rectangular shape that degree size is short.It addition, heavy punch piece 19 and 21 with the 1st piezoelectric element
11 and the 2nd piezoelectric element 13 face in opposite directions is constituted folder by the central part at long side direction respectively
Hold contact surface 19a and 21a of the part in portion 23 and be positioned at this contact surface 19a and 21a
Both sides, and be inclined to the interval between the 1st piezoelectric element 11 along with whereabouts extension 15
And 17 pair of angled face 19b and 21b that expand constitute.Alternatively, it is also possible to be a pair
Contact surface 19a and 21a binding agent or two-sided tape are fixed by heavy punch piece 19 and 21
On the 1st piezoelectric element the 11 and the 2nd piezoelectric element 13.If weight member 5 has so
Structure, the most there is not weight member 5 and hinder the flexible situation of piezoelectric transducer 3.At this
In embodiment, a pair heavy punch piece 19 and 21 and linking part 22 are integrally formed.
Supporter 7 possess with the spaced apart regulation of piezoelectric transducer 3 be spaced in long side direction
Extend main part 25, the rising portion 26 holded up from the two ends of the long side direction of main part 25,
It is arranged on the 1st and the 2nd supporting part 27 and 29 of the leading section of rising portion 26.Main body
Portion 25 has the rectangular plate shape extended at long side direction.1st and the 2nd supporting part
27 and 29 extensions 15 and 17 supporting oscillating plate 9 respectively.In the present embodiment,
Main part 25, rising portion the 26, the 1st supporting part the 27 and the 2nd supporting part 29 are by one
The metallic plates such as corrosion resistant plate carry out warpage processing and are integrally formed.It addition, main part 25
It is fixed on the housing of mobile phone.
1st supporting part 27 be provided integrally with elongated surfaces 15a of the face side with extension 15 with
And a pair contact chip 31 of the elongated surfaces 15b contact of side, the inside and 33 and by a pair contact chip
31 and 33 a pair connecting piece 34a linked and 34b.A pair contact chip 31 and 33
It is provided integrally with planar portion 31a and 33a and is formed at planar portion 31a and 33a
Contact site 31b and 33b of central part.Contact site 31b and 33b possess respectively towards
The direction of elongated surfaces 15a of extension 15 and elongated surfaces 15b become convex flexure plane 31c and
33c.In the present embodiment, contact site 31b and 33b has substantially semi-cylindrical shape.This
A little flexure plane 31c and 33c constitute elongated surfaces 15a with extension 15 and elongated surfaces 15b
The contact surface of contact.
2nd supporting part 29 be provided integrally with elongated surfaces 17a of the face side with extension 17 with
And a pair contact chip 35 of the elongated surfaces 17b contact of side, the inside and 37 and by a pair contact chip
35 and 37 a pair connecting piece 41a linked and 41b.A pair contact chip 35 and 37
It is provided integrally with planar portion 35a and 37a and is formed at planar portion 35a and 37a
Contact site 35b and 37b of central part.Contact site 35b and 37b possess respectively towards
The direction of elongated surfaces 17a of extension 17 and elongated surfaces 17b become convex flexure plane 35c and
37c.In the present embodiment, contact site 35b and 37b has substantially semi-cylindrical shape.This
A little flexure plane 35c and 37c constitute elongated surfaces 17a with extension 17 and elongated surfaces 17b
The contact surface of contact.
In the present embodiment, because a pair contact chip 31 and 33 has with extension 15
Centered by symmetrical shape, so, a pair contact chip 31 and 33(contact site 31b and
33b) face-to-face.It addition, because a pair contact chip 35 and 37 also has with extension 17
Centered by symmetrical shape, so, a pair contact chip 35 and 37(contact site 35b and
37b) face-to-face.In the present embodiment, by by a pair supporting part 27 of such structure
And 29 support oscillating plate 9 a pair extension 15 and 17, at the 1st and the 2nd piezoelectricity
When element 11 and 13 stretches, extension 15 and 17 with a pair contact chip 31 and
33 and contact portion 31d of 35 and 37 and 33d and 35d and 37d centered by swing.
As Fig. 4 represents with simulating enlargedly, elongated surfaces 15a of extension 15 and 15b
With the two of flexure plane 31c and 33c of contact chip 31 and 33 at contact portion 31d and
33d respectively becomes elongated surfaces (surface) 15a and elongated surfaces (the inside) 15b of extension 15
Oscillation center.In the diagram, extension 15 swing after is represented by dashed line.Equally, extend
Elongated surfaces 17a in portion 17 and 17b and the flexure plane 35c of contact chip 35 and 37 and
At the two of 37c, contact point 35d and 37d respectively becomes the elongated surfaces (surface) of extension 17
17a and the oscillation center of elongated surfaces (the inside) 17b.
In the above-described embodiment, stretch at the 1st piezoelectric element the 11 and the 2nd piezoelectric element 13
Time, extension 15 can be with the contact site with the contact chip 31 and 33 of the 1st supporting part 27
It is divided into pivot.It addition, extension 17 can be with the contact chip 37c with the 2nd supporting part 29
And swing centered by the contact portion of 39c.To this end, be substantially not present the 1st piezoelectric element 11
The bound situation of motion of oscillating plate when stretching with the 2nd piezoelectric element 13.It addition, because
The contact chip of surface wall portion and the contact chip in wall portion, the inside are face-to-face, so, can be to greatest extent
Guarantee the hunting range of extension.
Fig. 5 is the variation representing supporting part.It addition, in Figure 5, to Fig. 1 to 4 institute
The constituting portion split-phase of the embodiment shown part together is labeled in Fig. 1 to the reality shown in 4
Execute the digit symbol plus 100 numerals in the sign digit in mode, omit the description.This support
Portion 127 the long side direction of oscillating plate 115 end side link two contact chips 131 and
133, connecting piece 134.
Fig. 6 is the rearview of the piezoelectric vibration element of the alternate manner of the present invention.It addition, figure
In 6, the part same with the constituting portion split-phase of Fig. 1 to the embodiment shown in 4 is labeled in mark
Note symbol in Fig. 1 to the embodiment shown in 4 numerically plus 200 the number of numeral
Character number, omits the description.In the piezoelectric vibration element shown in Fig. 6, weight member 205
Have linked by linking part 222 be positioned at piezoelectric transducer 203 not with the master of supporter 207
One heavy punch piece 221 of body 207a side, face in opposite directions and with piezoelectric transducer 203 with
The holding piece 219 of the middle body contact in support body 207 face in opposite directions and the structure that is integrally forming.
Therefore, the weight member 205 of Fig. 6 is by the contact surface 221a by the middle body of heavy punch piece 221
The clamping part 223 constituted with holding piece 219 and linking part 222 is arranged on piezoelectric transducer 203
On, clip piezoelectric transducer 203 from thickness direction.
In the above-described embodiment, the piezoelectric vibration element with regard to bimorph type is said
Bright, but the present invention also is able to apply the piezoelectric vibration element in unimorph type certainly.
The probability utilized in industry
According to the present invention, owing to being engaged the piezoelectric element of piezoelectric transducer by a pair supporting part support
The two ends of oscillating plate, so, there is not the flexible situation of constraint piezoelectric element.It addition,
Due to oscillating plate two ends respectively by can with the contact portion of a pair contact chip centered by swing
State is supported, so, the motion being substantially not present oscillating plate when piezoelectric element stretches is restrainted
Situation about tiing up.Its result is, can maximally utilise the vibration produced by piezoelectric transducer,
The purposes as vibration source of piezoelectric vibration element can be expanded.
Symbol description
1: piezoelectric vibration element；3: piezoelectric transducer；5: weight member；7: supporter；
9: oscillating plate；11: the 1 piezoelectric elements；13: the 2 piezoelectric elements；15: extension；17:
Extension；19: heavy punch piece；21: heavy punch piece；22: linking part；23: clamping part；25:
Main part；26: rising portion；27: the 1 supporting parts；29: the 2 supporting parts；31: contact
Sheet；31a: planar portion；31b: contact site；31c: flexure plane；33: contact chip；34a:
Connecting piece；34b: connecting piece；35: contact chip；37: contact chip；41a: connecting piece；41b:
Connecting piece.
Claims (10)
1. a piezoelectric vibration element, described piezoelectric vibration element possesses in elongated vibration
The surface of plate and at least one party of the inside engage the piezoelectricity of more than one piezoelectric element and shake
Kinetoplast,
Support the supporter of aforementioned piezoelectric transducer for vibration, it is characterised in that
Aforementioned oscillating plate possesses at the two ends of long side direction and does not engages prolonging for a pair of aforementioned piezoelectric element
Long portion,
Aforementioned supporter possesses a pair support of aforementioned a pair extension supporting aforementioned oscillating plate
Portion,
Aforementioned supporting part has contacted with the aforementioned surfaces of aforementioned extension and aforementioned the inside
To contact chip, and have when aforementioned piezoelectric element stretches, it is allowed to aforementioned extension is with front
The structure of aforementioned extension is swingingly supported centered by stating the contact portion of a pair contact chip,
Aforementioned piezoelectric element be respectively set at aforementioned oscillating plate aforementioned surfaces and aforementioned in
Face,
Aforementioned a pair contact chip is by contacting with the aforementioned surfaces of aforementioned extension or aforementioned the inside
Contact surface becomes convex flexure plane towards aforementioned extension and constitutes,
Aforementioned a pair contact chip is face-to-face through aforementioned extension,
Aforementioned supporter possess with the spaced apart regulation of aforementioned piezoelectric transducer be spaced in aforementioned
Main part that long side direction extends, hold up from the two ends of the aforementioned long side direction of aforementioned main part
Rising portion, it is arranged on the aforementioned supporting part of the leading section of aforementioned rising portion,
One metallic plate warpage is integrally formed by aforementioned supporter,
Central part at the long side direction of aforementioned piezoelectric transducer will not hinder aforementioned piezoelectric transducer
Telescopically installation weight member,
Aforementioned weight member is arranged on by the clamping part clipping aforementioned piezoelectric transducer at thickness direction
On aforementioned piezoelectric transducer,
Aforementioned weight member is positioned at the both sides, aforementioned thicknesses direction of aforementioned piezoelectric transducer, and,
Have by linking part link the interval that is shaped as between aforementioned piezoelectric transducer along with whereabouts aforementioned
A pair heavy punch piece that a pair extension expands and the structure that is integrally forming.
2. a piezoelectric vibration element, described piezoelectric vibration element possesses in elongated vibration
The surface of plate and at least one party of the inside engage the piezoelectricity of more than one piezoelectric element and shake
Kinetoplast,
Support the supporter of aforementioned piezoelectric transducer for vibration, it is characterised in that
Aforementioned oscillating plate possesses at the two ends of long side direction and does not engages prolonging for a pair of aforementioned piezoelectric element
Long portion,
Aforementioned supporter possesses a pair support of aforementioned a pair extension supporting aforementioned oscillating plate
Portion,
Aforementioned supporting part has contacted with the aforementioned surfaces of aforementioned extension and aforementioned the inside
To contact chip, and, have when aforementioned piezoelectric element stretches, it is allowed to aforementioned extension with
The structure of aforementioned extension is swingingly supported centered by the contact portion of aforementioned a pair contact chip,
Aforementioned supporter possess with the spaced apart regulation of aforementioned piezoelectric transducer be spaced in aforementioned
Main part that long side direction extends, hold up from the two ends of the aforementioned long side direction of aforementioned main part
Rising portion, it is arranged on the aforementioned supporting part of the leading section of aforementioned rising portion,
One metallic plate warpage is integrally formed by aforementioned supporter.
3. piezoelectric vibration element as claimed in claim 2, it is characterised in that aforementioned piezoelectricity
Element is respectively set at the aforementioned surfaces of aforementioned oscillating plate and aforementioned the inside.
4. piezoelectric vibration element as claimed in claim 2, it is characterised in that aforementioned a pair
Contact chip by the contact surface contacted with the aforementioned surfaces of aforementioned extension or aforementioned the inside towards front
State the flexure plane composition that extension becomes convex.
5. piezoelectric vibration element as claimed in claim 3, it is characterised in that aforementioned a pair
Contact chip by the contact surface contacted with the aforementioned surfaces of aforementioned extension or aforementioned the inside towards front
State the flexure plane composition that extension becomes convex.
6. the piezoelectric vibration element as described in claim 4 or 5, it is characterised in that aforementioned
A pair contact chip is face-to-face through aforementioned extension.
7. piezoelectric vibration element as claimed in claim 2, it is characterised in that in aforementioned pressure
The central part of the long side direction of electric oscillator will not hinder the telescopically installation of aforementioned piezoelectric transducer
Weight member.
8. piezoelectric vibration element as claimed in claim 7, it is characterised in that aforementioned counterweight
Parts are arranged on aforementioned piezoelectric vibration by the clamping part clipping aforementioned piezoelectric transducer at thickness direction
On body.
9. a piezoelectric vibration element, described piezoelectric vibration element possesses in elongated vibration
The surface of plate and at least one party of the inside engage the piezoelectricity of more than one piezoelectric element and shake
Kinetoplast,
Support the supporter of aforementioned piezoelectric transducer for vibration, it is characterised in that
Aforementioned oscillating plate possesses at the two ends of long side direction and does not engages prolonging for a pair of aforementioned piezoelectric element
Long portion,
Aforementioned supporter possesses a pair support of aforementioned a pair extension supporting aforementioned oscillating plate
Portion,
Aforementioned supporting part has contacted with the aforementioned surfaces of aforementioned extension and aforementioned the inside
To contact chip, and, have when aforementioned piezoelectric element stretches, it is allowed to aforementioned extension with
The structure of aforementioned extension is swingingly supported centered by the contact portion of aforementioned a pair contact chip,
Central part at the long side direction of aforementioned piezoelectric transducer will not hinder aforementioned piezoelectric transducer
Telescopically installation weight member,
Aforementioned weight member is arranged on by the clamping part clipping aforementioned piezoelectric transducer at thickness direction
On aforementioned piezoelectric transducer,
Aforementioned weight member is positioned at the both sides, aforementioned thicknesses direction of aforementioned piezoelectric transducer, and,
Have by linking part link the interval that is shaped as between aforementioned piezoelectric transducer along with whereabouts aforementioned
A pair heavy punch piece that a pair extension expands and the structure that is integrally forming.
10. a piezoelectric vibration element, described piezoelectric vibration element possesses shakes elongated
The dynamic surface of plate and at least one party of the inside engage the piezoelectricity of more than one piezoelectric element
Pendulum,
Support the supporter of aforementioned piezoelectric transducer for vibration, it is characterised in that
Aforementioned oscillating plate possesses at the two ends of long side direction and does not engages prolonging for a pair of aforementioned piezoelectric element
Long portion,
Aforementioned supporter possesses a pair support of aforementioned a pair extension supporting aforementioned oscillating plate
Portion,
Aforementioned supporting part has contacted with the aforementioned surfaces of aforementioned extension and aforementioned the inside
To contact chip, and, have when aforementioned piezoelectric element stretches, it is allowed to aforementioned extension with
The structure of aforementioned extension is swingingly supported centered by the contact portion of aforementioned a pair contact chip,
Central part at the long side direction of aforementioned piezoelectric transducer will not hinder aforementioned piezoelectric transducer
Telescopically installation weight member,
Aforementioned weight member is arranged on by the clamping part clipping aforementioned piezoelectric transducer at thickness direction
On aforementioned piezoelectric transducer,
Aforementioned weight member is positioned at the one side in the aforementioned thicknesses direction of aforementioned piezoelectric transducer, and,
Have by linking part link the interval that is shaped as between aforementioned piezoelectric transducer along with whereabouts aforementioned
Heavy punch piece that a pair extension expands and with aforementioned piezoelectric transducer with aforementioned supporter before
State the holding piece of the middle body contact in main part face in opposite directions and the structure that is integrally forming.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011141867 | 2011-06-27 | ||
| JP2011-141867 | 2011-06-27 | ||
| PCT/JP2012/065329 WO2013002042A1 (en) | 2011-06-27 | 2012-06-15 | Piezoelectric vibration element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103621112A CN103621112A (en) | 2014-03-05 |
| CN103621112B true CN103621112B (en) | 2016-10-12 |
Family
ID=47423940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280031092.9A Expired - Fee Related CN103621112B (en) | 2011-06-27 | 2012-06-15 | Piezoelectric vibration element |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5953304B2 (en) |
| CN (1) | CN103621112B (en) |
| WO (1) | WO2013002042A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104289410B (en) * | 2014-09-16 | 2016-09-14 | 张家港市玉同电子科技有限公司 | Piezo-ceramic vibrators |
| CN110492787B (en) * | 2019-08-08 | 2021-07-13 | 西安交通大学 | Uniformly-distributed stress piezoelectric simply-supported beam vibration energy collector and energy collecting method |
| DE102020102516B3 (en) * | 2020-01-31 | 2021-02-18 | Kyocera Corporation | Tactile vibration generator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101027937A (en) * | 2004-07-23 | 2007-08-29 | 北陆电气工业株式会社 | Piezoelectric sound producing unit |
| CN101102621A (en) * | 2006-07-05 | 2008-01-09 | 太阳诱电株式会社 | Piezoelectric type electroacoustical transformer |
| CN102668598B (en) * | 2009-12-15 | 2015-03-04 | 日本电气株式会社 | Actuator, piezoelectric actuator, electronic device, and method for attenuating vibration and converting vibration direction |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58138499U (en) * | 1982-03-10 | 1983-09-17 | 日本特殊陶業株式会社 | piezoelectric buzzer |
| JP4211155B2 (en) * | 1999-09-20 | 2009-01-21 | 株式会社村田製作所 | Piezoelectric tweeter |
| JP2003219499A (en) * | 2002-01-24 | 2003-07-31 | Megasera:Kk | Piezoelectric speaker |
| JP4771475B2 (en) * | 2006-06-19 | 2011-09-14 | Ｎｅｃトーキン株式会社 | Bone conduction speaker |
-
2012
- 2012-06-15 CN CN201280031092.9A patent/CN103621112B/en not_active Expired - Fee Related
- 2012-06-15 JP JP2013522585A patent/JP5953304B2/en not_active Expired - Fee Related
- 2012-06-15 WO PCT/JP2012/065329 patent/WO2013002042A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101027937A (en) * | 2004-07-23 | 2007-08-29 | 北陆电气工业株式会社 | Piezoelectric sound producing unit |
| CN101102621A (en) * | 2006-07-05 | 2008-01-09 | 太阳诱电株式会社 | Piezoelectric type electroacoustical transformer |
| CN102668598B (en) * | 2009-12-15 | 2015-03-04 | 日本电气株式会社 | Actuator, piezoelectric actuator, electronic device, and method for attenuating vibration and converting vibration direction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103621112A (en) | 2014-03-05 |
| JP5953304B2 (en) | 2016-07-20 |
| JPWO2013002042A1 (en) | 2015-02-23 |
| WO2013002042A1 (en) | 2013-01-03 |
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