CN104053511B - Piezoelectric vibrating device - Google Patents
Piezoelectric vibrating device Download PDFInfo
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- CN104053511B CN104053511B CN201280067426.8A CN201280067426A CN104053511B CN 104053511 B CN104053511 B CN 104053511B CN 201280067426 A CN201280067426 A CN 201280067426A CN 104053511 B CN104053511 B CN 104053511B
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- vibrating device
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Classifications
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- 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
- B06B1/0644—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 single piezoelectric element
- B06B1/0662—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 single piezoelectric element with an electrode on the sensitive surface
- B06B1/0666—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 single piezoelectric element with an electrode on the sensitive surface used as a diaphragm
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The present invention provides the piezoelectric vibrating device that excellent and vibration the convergence time of a kind of body-sensing is short.One end (1a) of oscillating plate (1) is fixed.Piezoelectric transducer (3) is formed above at oscillating plate (1).Fixedly mount in the way of remaining the portion of terminal (3d) of piezoelectric transducer (3) in one end (1a) of oscillating plate (1) with support (9).The other end (1c) in oscillating plate (1) fixing hammer parts (5).The rigidity of hammer parts (5) is bigger than oscillating plate (1).The natural frequency of hammer parts (5) is decided to be 3 times of the natural frequency be more than or equal to the oscillating plate (1) defining piezoelectric transducer (3).Hammer parts (5) has the base portion (5c) having the contact surface (5b) contacted with oscillating plate (1), and is arranged to one and the body (5d) extended along oscillating plate (1) with base portion (5c).Body (5d) with oscillating plate (1) face (5e) in opposite directions on be formed with inclined plane (5f).
Description
Technical field
The present invention relates to and above the oscillating plate at one end fixed, form piezoelectric transducer, fix the piezoelectric vibrating device of hammer parts at the other end of oscillating plate.
Background technology
In recent years, the smart phone as a form of mobile communication equipment portable phone is widely used.In the cellular phone, have employed because use environment replacement ring tone instead of so that equipment self vibrates the method notifying user.As vibration component, it is common to use electromagnetic type agitator.Electromagnetic type agitator is constituted by eccentric hammer is engaged with the axle of electromagnetic motor, during calling, it is arranged on the eccentric hammer on the axle of electromagnetic motor to rotate and produce vibration, it makes apparatus body vibration inform user, but, there is response speed slow, some detect user late, and expend the problem that electric power is big, service time of battery is short..
In Fig. 1 of Japanese Unexamined Patent Publication 11-244783 publication (patent documentation 1), disclosing a kind of at one end leaf spring that 2 are secured 1 and form piezoelectrics 5 above, the other end 3 at leaf spring 1 secures the structure of the piezoelectric oscillator of weight 4.
And, in Fig. 3 of Japanese Unexamined Patent Publication 8-314467 (patent documentation 2), disclose a kind of possess fixed one end piezoelectric vibrating plate 2, at the hammer 3 of the other end being fixed on piezoelectric vibrating plate 2, and the structure of the piezoelectric vibration generating means of the connection portion of terminal 5,5 being connected with piezoelectric vibrating plate 2 by conductor 7,7.
These piezoelectric vibrating devices, for the problem solving electromagnetic type agitator, miniaturized electronics for portable phone, smart phone etc., oscillating plate is made to vibrate along the thickness direction when being used for applying voltage on piezoelectric part, electronic equipment is produced vibration, thus gives the body-sensing based on vibration to the user of electronic equipment.
Prior art literature
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 11-244783 publication
Patent documentation 2: Japanese Unexamined Patent Publication 8-314467 publication
Summary of the invention
The problem that invention to solve
But, the electronic equipment of portable phone etc. is using slimming, miniaturization, lightweight as the premise of commodity development, and, in conventional piezoelectric vibrating device, only hammer is formed in the end head of vibration section, therefore, the volume hammered into shape for being fixed on oscillating plate, namely the increase of weight is limited.And then, due to the limit of rupture of piezoelectrics, it is impossible to strengthen the Oscillation Amplitude of oscillating plate, the vibrational energy produced due to piezoelectric vibrating device is directly proportional to 2 powers of weight and vibration amplitude, so, the problem of body perception shortcoming.
In the electronic equipment that have employed touch screen of smart phone etc. in recent years, it is desirable to immediately produce vibration when touching picture, and restrain vibration at short notice.
And, in conventional piezoelectric vibrating device, it is easy in the coupling part connecting terminal of piezoelectric part with external connection, bad connection occurs because of the vibration of oscillating plate, therefore, the problem that durability is bad will be solved.
That is, it is an object of the invention to provide a kind of body-sensing excellent, and the piezoelectric vibrating device that the convergence time of vibration is short.
Other purpose of the present invention is to provide the piezoelectric vibrating device that a kind of durability is high.
For solving the technological means of problem
Become the present invention and improve the piezoelectric vibrating device of object, possess oscillating plate, the formation piezoelectric transducer on oscillating plate fixed one end, and be fixed on the hammer parts of the other end of oscillating plate.At this, above oscillating plate, its implication refer to oscillating plate with hammer parts face in opposite directions on and the upper any one party in the face of opposition side with hammer parts face in opposite directions of oscillating plate, or both sides.Namely, configuration structure as piezoelectric transducer, it is possible to any one configuration structure in the single face geometrical form that adopts the surface of the thickness direction that piezoelectric transducer is arranged on oscillating plate or the back side, the double; two morphology structures being arranged on the surface of the thickness direction of oscillating plate and the both sides at the back side.And when being arranged on the one side of oscillating plate, piezoelectric transducer can also be multiple structure.
In the piezoelectric vibrating device of the present invention, the rigidity of the hammer parts being fixed on the other end of oscillating plate is bigger than oscillating plate, has the shape that between oscillating plate interval extends towards the end side of oscillating plate.Adopt the hammer parts that rigidity is bigger than oscillating plate, be then possible to prevent oscillating plate to resonate with hammer parts and cause the vibrational energy of oscillating plate to be hammered into shape parts and absorb, therefore can reduce the Oscillation Amplitude of oscillating plate.Furthermore, it is possible to shorten the convergence time of vibration.
Additionally, it is preferred that be, the natural frequency of hammer parts is decided to be 3 times of the natural frequency of the oscillating plate be more than or equal to the state defining piezoelectric transducer.At this, " defining the natural frequency of the oscillating plate of the state of piezoelectric transducer ", the natural frequency of the oscillating plate obtained when referring to and define piezoelectric transducer on oscillating plate.If use natural frequency deficiency defines the hammer parts of 3 times of the oscillating plate of the state of piezoelectric transducer, then oscillating plate easily resonates with hammer parts and makes the vibrational energy of oscillating plate be hammered into shape parts and absorb, need big driving energy to strengthen the body vibration of oscillating plate.It is to say, drive efficiency reduces, expend electric power and become big.And, there is also hammer parts self resonance cause vibration to oscillating plate apply transition power, the problem of the mechanical loss of induced vibration plate.And then, it is preferred to, the natural frequency of hammer parts be decided to be 10 times of natural frequency of the oscillating plate of the state defining piezoelectric transducer within (that is, 3 times to 10 times).This is because, if use natural frequency exceedes the hammer parts of 10 times of the natural frequency of the oscillating plate of the state defining piezoelectric transducer, then the vibration mode of oscillating plate can change as a result, just cannot produce big vibrational energy.And, it is bring out mechanical damage owing to the power being applied on oscillating plate from hammer parts becomes conference.In addition, it is owing to the convergence time of vibration is elongated thus bad.It addition, in order to reliably solve these problems, more preferably, the natural frequency of hammer parts is decided to be 7 times (that is, 3 times to 7 times) of the natural frequency of oscillating plate less than or equal to the state defining piezoelectric transducer.
If it addition, make oscillating plate vibrate when securing hammer parts, then the flexure of oscillating plate, it is intended to the flexure with hammer parts face in opposite directions is more than the flexure with the face of the opposition side in hammer parts face in opposite directions.Then, if the bigger oscillating plate of flexure with hammer parts face in opposite directions on form piezoelectric transducer, it is possible to piezoelectric transducer is applied bigger driving force.That is, by piezoelectric transducer is formed with on hammer parts face in opposite directions, it is possible to improve the body-sensing of people using piezoelectric vibrating device.
And, if oscillating plate with hammer parts face in opposite directions opposition side face on formed piezoelectric transducer, follow oscillating plate form the occasion of piezoelectric transducer with on hammer parts face in opposite directions compared with, although the driving force that piezoelectric transducer obtains reduces, but the life-span of piezoelectric transducer can be extended.That is, by piezoelectric transducer formed oscillating plate with hammer parts face in opposite directions opposition side face on, it is possible to improve piezoelectric vibrating device long-term reliability.
And, if making the shape of hammer parts become the shape that between oscillating plate interval extends towards the end side of oscillating plate, even if the volume of hammer parts is big, hammer parts are also difficult to encounter oscillating plate, therefore, piezoelectric transducer will not be caused damage, it is possible to strengthen the Oscillation Amplitude of oscillating plate.And then, if making the shape of hammer parts become the shape that the end side towards oscillating plate attenuates, it is possible to resonant frequency when improving same volume (same) thus scope of design width.
The mode being fixed on oscillating plate by hammer parts is arbitrary.Such as, the through hole be more than or equal to a through oscillating plate of through-thickness is formed at the other end of oscillating plate.And, hammer parts are formed by the material comprising heat deformable, and, hammer parts are arranged with and termination chimeric be more than or equal to through hole from the through hole of oscillating plate highlight be more than or equal to a projection.And can also be carry out thermal deformation with the termination be more than or equal to a projection chimeric be more than or equal to through hole by making, hammer parts are fixed on oscillating plate.Material as heat deformable, it is preferred to use the material by thermoplastic resin (such as polyamide, the epoxy resin etc.) hybrid shaping of the powder of the metal (such as tungsten, molybdenum, pyrite, iron class alloy etc.) of high specific gravity and high intensity and high-fire resistance and high intensity.If adopting such method, it is possible to hammer parts are arranged on oscillating plate simply and reliably.
Hammer parts can be have the shape of base portion and body, and this base portion has prominent be more than or equal to a projection and the base portion of contact surface that contact with oscillating plate, and this body and this base portion are arranged to one and along oscillating plate extension.And, in the case, body with on oscillating plate face in opposite directions, form the inclined plane tilted at a certain angle.Inclined plane by make oscillating plate and hammer parts face in opposite directions and body and interval between oscillating plate face in opposite directions become larger from another side of oscillating plate towards the end side of oscillating plate in the way of tilt.If arranging such inclined plane on hammer parts, even if then the Oscillation Amplitude of oscillating plate becomes big, oscillating plate is also difficult to and hammer component contact, is therefore possible to prevent the reduction of Oscillation Amplitude.Be additionally, since can oscillating plate and hammer parts between guarantee space, therefore, even if when oscillating plate with hammer parts face in opposite directions on form piezoelectric transducer, hammer parts be also difficult to contact with piezoelectric transducer, it is possible to prevent piezoelectric transducer from damaging.
The mode that one end of oscillating plate is fixed is arbitrary.In the present invention, as oscillating plate, adopt the metallic plate formed in the way of making one end of oscillating plate be constituted the portion of terminal of piezoelectric transducer, and then, adopt the metal erection scaffolding being fixed in the way of making the one end at oscillating plate leave portion of terminal.In this case, it is preferable to be, forming the soldered portion of tabular and arrange all-in-one-piece attached portion with this soldered portion on erection scaffolding, this soldered portion possesses the solder side on a side of a pair side in opposite directions in a thickness direction being welded on oscillating plate.At this, " on a side of a pair side in opposite directions in a thickness direction of oscillating plate " refer to oscillating plate with hammer parts face in opposite directions on and oscillating plate with on the face of the opposition side in hammer parts face in opposite directions therein any one.In the soldered portion (solder side) of erection scaffolding, metal oscillating plate (metallic plate) by solder joints, therefore, it is possible to be securely fixed one end of oscillating plate.And, the attached portion of erection scaffolding becomes can install structure on an electronic device by the piezoelectric vibrating device of the present invention.Owing to attached portion and soldered portion are arranged to one, therefore, it can by adopting this erection scaffolding to be reliably mounted on electronic equipment by piezoelectric vibrating device.
When metal erection scaffolding is manufactured by intermetallic composite coating, between the solder side of erection scaffolding and side, produce corner and/or burr sometimes.Such corner or burr make oscillating plate deformation or abrasion because of vibration, can change the vibration characteristics of oscillating plate.For this, the existence of such corner and/or burr becomes the reason that the performance of piezoelectric vibrating device reduces.Then, it is desirable in soldered portion, and then between the side of the end side at oscillating plate is with solder side and between the side of another side of oscillating plate is with solder side, form the flexure plane without seamed edge respectively.If forming such flexure plane, then between the side of the end side at oscillating plate and solder side and between the side and solder side of another side of oscillating plate, seamed edge (corner or burr) will not be formed, it is, therefore, possible to provide the piezoelectric vibrating device of the Oscillation Amplitude of oscillating plate not malleable.It addition, the shape of flexure plane, as long as be such as processed into R face or occur without in oscillating plate side burr C face shape as, be difficult to the shape that is deformed because of the vibration of oscillating plate or wears away, can for which kind of shape.
With the present invention for the piezoelectric vibrating device of object, it is necessary to the wire being used for piezoelectric transducer is applied (input) voltage is electrically connected with piezoelectric transducer.But, in conventional piezoelectric vibrating device, the input electric power of wire Yu piezoelectric transducer is directly connected to, therefore, the coupling part of piezoelectric transducer Yu wire can be applied bending force by the vibration of oscillating plate repeatedly, so there is the problem easily producing bad connection.And, the problem of such loose contact is more significantly when the Oscillation Amplitude of oscillating plate strengthens.Then, in order to solve such problem, it is desirable to adopt conductive brush in the coupling part of piezoelectric transducer with wire.Specifically, piezoelectric transducer possesses piezoceramics layer, and is formed at 1 electrode layer hammered into shape on parts face in opposite directions with this piezoceramics layer.In the case, oscillating plate constitutes the 1st input electrode of piezoelectric transducer, and 1 electrode layer constitutes the 2nd input electrode of piezoelectric transducer.The conductive brush contacted with this 2nd input electrode is set further.This conductive brush can be possess to be arranged to one with the contact site that the 2nd input electrode contacts slidably and this contact site and produce the plate spring part of the pushing force pushed towards the 2nd input electrode by contact site, and be arranged to one with this plate spring part and be arranged on the fixing parts of the one end being fixed in oscillating plate the terminal for connecting portion being connected with wire.If the coupling part of piezoelectric transducer and wire adopts such conductive brush, even if the Oscillation Amplitude of oscillating plate becomes big, conductive brush can also reliably contact with the 2nd input electrode of piezoelectric transducer and guarantee to conduct, and therefore is difficult to bad connection at the electrical connections of piezoelectric transducer Yu wire.And, due to by the plate spring part of conductive brush, even if the contact site of brush portion of conductive brush can also be made reliably to contact with the 2nd input electrode of piezoelectric transducer during the vibration of oscillating plate, therefore, it can the generation effectively preventing piezoelectric transducer with the loose contact of the coupling part of wire.In order to realize higher reliability, the contact site in the brush portion of the conductive brush contacted with the 2nd input electrode of piezoelectric transducer forms conducting rubber.
Fixing parts, it is desirable to using pair of conductive brush as insert, electrically insulating material carry out intercalation shaping.If fixing parts are so constituted, it is possible to conductive brush is securely fixed on fixing parts.
Furthermore, it is also possible to replace conductive brush to adopt the flexible wiring substrate with electric conductivity.This flexible wiring substrate possesses and is connected with the 2nd input electrode and distribution discontiguous with oscillating plate.Specifically, the one end with flexible wiring substrate is connected with the 2nd input electrode, and flexible wiring substrate and distribution cross the structure that one end of oscillating plate extends.Flexible wiring substrate himself has flexibility, therefore can deform corresponding to the flexure of oscillating plate.For this, if piezoelectric transducer and the coupling part of wire being adopted the structure employing such flexible wiring substrate, even if so the Oscillation Amplitude of oscillating plate becomes big, conductive brush can also reliably contact with the 2nd input electrode of piezoelectric transducer and guarantee to conduct, accordingly, it is difficult to the electrical connections at piezoelectric transducer with wire produces bad connection.And, identical with the occasion adopting conductive brush, even if during oscillating plate vibration, it is also possible to the flexible contact site of wiring substrate is reliably contacted with the 2nd input electrode of piezoelectric transducer, therefore, it can effectively prevent the coupling part of piezoelectric transducer and wire from coming in contact bad.And then, by using flexible wiring substrate, compared with the occasion using conductive brush, the abrasion of the contact portion of the flexible wiring substrate of the 2nd input electrode tail off, so further increasing long-term reliability.
And, when replacing conductive brush and using flexible wiring substrate, flexibility wiring substrate is carried out intercalation shaping as insert, it is possible to flexible wiring substrate is securely fixed on fixing parts.
It addition, the mode of one end that the fixing parts of conductive brush are fixed on oscillating plate is arbitrary intercalation.In the present invention, formed be more than or equal to a through hole through on the thickness direction of oscillating plate in one end of oscillating plate.And, on erection scaffolding, when oscillating plate is fixed on erection scaffolding, the thickness direction towards erection scaffolding formed with the through hole of oscillating plate be concentric circles through be more than or equal to a through hole.And then, as electrically insulating material, form fixing parts with the material (such as, the multiple plastic material such as nylon, ABS, PET, PPS) of heat deformable.Fixing parts are provided be more than or equal to a projection, this projection is chimeric with the through hole of the through hole of oscillating plate and erection scaffolding when one end of oscillating plate is arranged on erection scaffolding, and highlights from the through hole of oscillating plate and the through hole of erection scaffolding.And, as long as by the termination thermal deformation be more than or equal to a projection prominent from the through hole of oscillating plate and the through hole of erection scaffolding, being firmly fixed with, on support, fixing parts being fixed on one end of oscillating plate at oscillating plate.If using such fixing parts, it is possible to conductive brush be fixed on the erection scaffolding securing oscillating plate by fixing parts.For this, it is possible to prevent the loose contact that the contact position dislocation of the contact site of the brush portion because of conductive brush and the input electrode of piezoelectric transducer causes.
Accompanying drawing explanation
Fig. 1 indicates that the axonometric chart of the embodiment of the piezoelectric vibrating device of the present invention.
Fig. 2 is the exploded perspective view that the axonometric chart of Fig. 1 has decomposed.
Fig. 3 is the front elevation during axonometric chart of Fig. 1 in terms of face side.
Fig. 4 is the top view during axonometric chart of Fig. 1 in terms of upside.
Fig. 5 is by the amplification stereogram of a part of enlarged representation of the exploded perspective view of Fig. 2.
Fig. 4 is amplified and from broken sectional time in terms of front by Fig. 6 along the cross section of V-V line cutting.
Fig. 7 is the upward view during axonometric chart of Fig. 1 in terms of downside.
Fig. 8 indicates that the axonometric chart of the other embodiment of the piezoelectric vibrating device of the present invention.
Detailed description of the invention
Hereinafter, with reference to the accompanying drawings of embodiments of the present invention.Fig. 1 is the axonometric chart of an embodiment of the piezoelectric vibrating device of the present invention.The piezoelectric vibrating device (axonometric chart) of Fig. 1 is decomposed the exploded perspective view being indicated by Fig. 2.Fig. 3 is the front elevation during axonometric chart of Fig. 1 in terms of face side.Piezoelectric vibrating device shown in Fig. 1 to Fig. 3 includes oscillating plate 1, piezoelectric transducer 3, hammer parts 5, conductive brush 7 and erection scaffolding 9 and constitutes.
The metallic plate that oscillating plate 1 is made up of phosphor bronze, ferrous material, rustless steel, nickel alloy etc. is constituted, so that one end 1a of oscillating plate 1 constitutes the portion of terminal of piezoelectric transducer 3, and is fixed on the metal erection scaffolding 9 described in detail hereinafter.
Piezoelectric transducer 3 comprises the piezoceramics layer 3a of lead zirconate titanate (PZT) system, lead titanates (PT) system etc., has the structure forming 1 electrode layer 3b on this piezoceramics layer 3a.Piezoelectric transducer 3 bonding agent is bonded on above oscillating plate 1.In this example, as piezoelectric transducer 3, adopt the piezoelectric transducer of single face geometrical form on the back side (with the hammer parts 5 described later face in opposite directions) 1b of the thickness direction being arranged on oscillating plate 1.The flexure of oscillating plate 1, surface (face with the opposition side in hammer parts 5 face in opposite directions) 1e than the thickness direction of oscillating plate 1 described later, the flexure of back side 1b is bigger (namely, the occasion of the surface 1e of the thickness direction of oscillating plate 1 it is formed on than piezoelectric transducer 3, the occasion of the back side 1b of the thickness direction of oscillating plate 1 it is formed at piezoelectric transducer 3, the driving force that piezoelectric transducer 3 obtains is bigger), it is thus possible to improve the body-sensing of user.
And, although not illustrating especially, but it is also possible to take piezoelectric transducer 3 to form the single face geometrical form on the surface 1e of the thickness direction of oscillating plate 1.The flexure of oscillating plate 1, back side 1b than the thickness direction of oscillating plate 1, the flexure of surface 1e is bigger (namely, the occasion of the back side 1b of the thickness direction of oscillating plate 1 it is formed on than piezoelectric transducer 3, be formed at piezoelectric transducer 3 oscillating plate 1 thickness direction surface 1e on occasion, the driving force that piezoelectric transducer 3 obtains is less).For this, by piezoelectric transducer 3 being formed the surface 1e of the thickness direction at oscillating plate 1, although use piezoelectric vibrating device people body-sensing reduce, but the product life of piezoelectric vibrating device can be extended.And, can certainly be that two piezoelectric transducers that piezoelectric transducer is made up of the 1st piezoelectric transducer and the 2nd piezoelectric transducer are constituted, 1st piezoelectric transducer is formed the surface 1e of thickness direction at oscillating plate 1, and then the 2nd piezoelectric transducer is formed double; two morphology structures of the back side 1b of thickness direction at oscillating plate 1.
Hammer parts 5 are fixed on the other end 1c (concrete fixing means is aftermentioned) of oscillating plate 1.Hammer parts 5 as will be described in detail hereinafter, the material that comprises heat deformable and formed.As the material of heat deformable, in this example, the moulding material mixed by the powder of tungsten is used with polyamide, epoxy resin etc. (thermoplastic resin of high-fire resistance and high intensity).Tungsten is the metal of stone weight.Therefore, with such high intensity and hyperbaric metal for the hammer parts 5 for Main Ingredients and Appearance, designed by the shape centered by thickness, there is the flexural rigidity bigger than oscillating plate 1.Specifically, the natural frequency of hammer parts 5, it is decided to be 3 times～10 times of natural frequency of the oscillating plate 1 defining piezoelectric transducer 3.As in this example, if the flexural rigidity of hammer parts 5 is more than the flexural rigidity of oscillating plate 1, then the resonance of oscillating plate 1 and hammer parts 5 is difficult to occur (that is, the vibrational energy of oscillating plate 1 be difficult to be hammered into shape parts 5 absorb).Its result, just can increase the Oscillation Amplitude of oscillating plate 1 with little electrically input, and the convergence time vibrated shortens.
Hammer parts 5 have the shape that between oscillating plate 1 interval extends towards the 1a side, one end of oscillating plate 1.Specifically, hammer parts 5 be shaped as have: there is the base portion 5c of contact surface 5b contact with oscillating plate 1, and be arranged to one and the shape of the body 5d along oscillating plate 1 extension with base portion 5c.As shown in Figures 2 to 4, it is formed with 1 projection 5a from the contact surface 5b of base portion 5c.The inclined plane 5f tilted at a certain angle is become with the oscillating plate 1 (back side 1b of oscillating plate 1) of body 5d face (forward surface) 5e in opposite directions.This inclined plane 5f so that oscillating plate 1 back side 1b and the forward surface 5e of hammer parts 5 (body 5d) between the mode that becomes larger towards the 1b side, one end of oscillating plate 1 from the other end 1c side of oscillating plate 1 of gap tilt.Angle, θ between the back side 1b and the forward surface 5e of hammer parts 5 (body 5d) of oscillating plate 1 is configured to, and when the vibration of oscillating plate 1 makes hammer parts 5 vibrate, both do not contact.Therefore, in this example, owing to there is the inclined plane 5f formed on hammer parts 5, thus, even if the Oscillation Amplitude of oscillating plate 1 becomes big, oscillating plate 1 does not also contact with hammer parts 5.And, by arranging inclined plane 5f on hammer parts 5, it is possible to guarantee space between oscillating plate 1 and hammer parts 5.For this, as in this example, even if piezoelectric transducer 3 forms the back side 1b at oscillating plate 1, owing to hammer parts 5 do not contact with piezoelectric transducer 3, therefore piezoelectric transducer 3 is not damaged.
Then, illustrate by the structure that hammer parts 5 are fixed on oscillating plate 1.Fig. 4 indicates that the top view (in terms of upside top view) during the axonometric chart of Fig. 1 of the embodiment of the piezoelectric vibrating device of the present invention.As in figure 2 it is shown, first form 1 through hole 1d towards the through oscillating plate 1 of thickness direction at the other end 1c of oscillating plate 1.And, as shown in Figures 3 and 4, constitute the projection 5a of hammer parts 5, make the projection 5a of hammer parts 5 chimeric with the through hole 1d of oscillating plate 1, make the termination of projection 5a highlight from the through hole 1d of oscillating plate 1.As mentioned above, hammer parts 5 are formed by the material being Main Ingredients and Appearance with polyamide (thermoplastic resin of high-fire resistance and high intensity), therefore, by the termination thermal deformation the projection 5a of the hammer parts 5 chimeric with the through hole 1d of oscillating plate 1 and in room temperature cooling, it is thus possible to hammer parts 5 are arranged on oscillating plate 1 simply and reliably.It addition, make through hole 1d's to be shaped as non-circular, and to make the shape of cross section of projection 5a be non-circular, it is possible to seeks the spline of hammer parts 5.
A part (erection scaffolding) for the piezoelectric vibrating device (exploded perspective view) of Fig. 2 is amplified the amplification stereogram being indicated by Fig. 5.The piezoelectric vibrating device (top view) of Fig. 4 is amplified and the broken sectional seen from front by Fig. 6 along the cross section of V-V line cutting.As shown in Fig. 2, Fig. 4, Fig. 5 and Fig. 6, in the present embodiment, fixed installation support 9 in the way of making the portion of terminal 3d of piezoelectric transducer 3 remain in one end 1a of oscillating plate 1.On erection scaffolding 9, the soldered portion 9a and attached portion 9b of tabular forms one.It is soldered portion 9a, as shown in Figure 5, possess: be welded on the solder side 9c on surface (face with the opposition side in the hammer parts 5 face in opposite directions) 1e of the thickness direction of oscillating plate 1, and be used for fixing in the substantially central portion of soldered portion 9a 1 through hole 9d of fixing parts 11 described later.The surface 1e of oscillating plate 1, by solder side 9c, for instance engaged with soldered portion 9a by spot-welded.And, on attached portion 9b, as it is shown in figure 5, be provided with for the piezoelectric vibrating device of this example is installed 1 through hole 9e on an electronic device.
On soldered portion 9a, and then, between the side 9f and solder side 9c in the 1a side, one end of oscillating plate 1 and between the side 9g and solder side 9c of the other end 1c side of oscillating plate 1, it is respectively formed with flexure plane 9h and 9i.In this example, C face is become owing to flexure plane 9h and 9i chamfering shape, therefore, between the side 9f and solder side 9c in the 1a side, one end of oscillating plate 1 and between the side 9g and solder side 9c of the other end 1c side of oscillating plate 1, seamed edge (corner or burr) will not be formed.Its result, even if oscillating plate vibration, erection scaffolding 9 is also difficult to deform or wear away, it can be ensured that the Oscillation Amplitude of oscillating plate 1 is fixed.At this, naturally it is also possible to be not C face but R face.
Then, the structure of piezoelectric transducer 3 and the coupling part of not shown wire is illustrated.Fig. 7 indicates that the upward view (in terms of downside upward view) during the axonometric chart of Fig. 1 of the embodiment of piezoelectric vibrating device.As shown in Figure 1, Figure 2 and shown in Fig. 7, in this example, oscillating plate 1 constitutes the 1st input electrode of piezoelectric transducer 3, and 1 the electrode layer 3b constituting a part for piezoelectric transducer 3 constitutes the 2nd input electrode of piezoelectric transducer 3.
The contact site 7a of conductive brush 7 contacts with this 2nd input electrode (1 electrode layer 3b).Specifically, the end 3c contact of contact site 7a and the 2 input electrode (1 electrode layer 3b) of conductive brush 7.Conductive brush 7 is made up of phosphor bronze, ferrum, rustless steel etc., has contact site 7a, plate spring part 7b, terminal for connecting portion 7c shape all-in-one-piece structure.The contact site 7a of conductive brush 7 can contact with electrode layer 3b slidably.And plate spring part 7b and contact site 7a are arranged to one and produce contact site 7a towards the electrode layer 3b pushing force pushed.And then, terminal for connecting portion 7c and plate spring part 7b is arranged to one and is fixed on fixing parts 11, and wire is connected with terminal for connecting portion 7c.In this example, conductive brush 7 (specifically, using terminal for connecting portion 7c) as insert, fixing parts 11 are shaped by electrically insulating material (insulating resin) intercalation.For this, conductive brush 7 is securely fixed on fixing parts 11.It addition, fixing parts 11 electrically insulating material (such as, the various plastic material such as nylon, ABS, PET, PPS) of heat deformable is formed.
As in figure 2 it is shown, in this example, it is formed towards through 1 the through hole 1f of the thickness direction of oscillating plate 1 at one end 1a of oscillating plate 1.And, fixing parts 11 are provided with 1 projection 11a, this projection 11a is chimeric with the through hole 9d of the through hole 1f of oscillating plate 1 and erection scaffolding 9 when one end 1a of oscillating plate 1 is arranged on erection scaffolding 9, and highlights from the through hole 1f of the oscillating plate 1 and through hole 9d of erection scaffolding 9 (being soldered portion 9a).In this example, such as Fig. 2, shown in Fig. 4 and Fig. 6, projection 11a is chimeric with the through hole 9d of the through hole 1f of oscillating plate 1 and erection scaffolding 9, the termination of projection 11a is from state prominent for through hole 1f and through hole 9d, by making the termination thermal deformation of projection 11a, fixing parts 11 are fixed on one end 1a of the oscillating plate 1 being fixed on erection scaffolding 9.That is, conductive brush 7 is fixed on the erection scaffolding 9 securing oscillating plate 1 by fixing parts 11.It is as a result, it is possible to prevent the contact site 7a of conductive brush 7 loose contact caused with the dislocation of the contact position of the electrode layer 3b (the 2nd input electrode 3b) of the piezoelectric transducer 3 formed on oscillating plate 1.
So, in this example, using the oscillating plate 1 the 1st input electrode as piezoelectric transducer 3, conductive brush 7 is contacted with electrode layer 3b, therefore, even if the Oscillation Amplitude of oscillating plate 1 becomes big, by making electrode layer 3b (the 2nd input electrode) sliding contact of conductive brush 7 and piezoelectric transducer 3, it is possible to reliably ensure that and conduct.And, in this example, by the plate spring part 7b of conductive brush 7, even if oscillating plate 1 vibrates, it is also possible to the contact site 7a of the brush portion of conductive brush 7 is reliably contacted with the electrode layer 3b of piezoelectric transducer 3.For this, in the piezoelectric vibrating device of this example, the electrical connections of piezoelectric transducer 3 and wire is difficult to bad connection.At this, in order to improve long-term reliability, it is possible to the contact surface at the electrode layer 3b of conductive brush 7 is implemented gold-plated, or adopts the rubber of electric conductivity.
Fig. 8 is the axonometric chart of the other embodiment of the piezoelectric vibrating device of the present invention.It addition, in fig. 8, for at Fig. 1 to 7 in the common composition part of the composition part that describes, at Fig. 1 to 7 in the accompanying drawing reference numerals that employs be used as accompanying drawing labelling plus 100 and the description thereof will be omitted.And, in order to the explanation making further embodiment is easy, eliminate the diagram of fixing parts 111.In the example shown in Fig. 8, replace conductive brush 7, have employed the flexible wiring substrate 107 of electric conductivity, this flexibility wiring substrate 107 have one end be connected with the 2nd input electrode (1 electrode layer 103b) and with the discontiguous distribution of oscillating plate 101 (not shown).Flexible wiring substrate 107, is made up of polyimides, polyester, polyethylene terephthalate, liquid crystal polymer etc., has contact site 107a, non-contact portion 107b, terminal for connecting portion 107c shape all-in-one-piece structure.Contact site 107a is arranged on the other end of flexible wiring substrate 107, contacts with electrode layer 103b.And, non-contact portion 107b and contact site 107a is arranged to one, and is configured to together with contact site to deform, it is thus possible to maintain the contact of contact site 107a and the 2 input electrode.And then, terminal for connecting portion 107c is arranged to one in one end of flexible wiring substrate 107 with non-contact portion 107b and is fixed on fixing parts 111, and not shown distribution (wire) is connected with terminal for connecting portion 107c.Flexible wiring substrate 107 (terminal for connecting portion 107c) and distribution (wire) are crossed one end 101a of oscillating plate 101 and are constituted with extending.
In the example that this is other, by flexibility wiring substrate 107 (specifically, for terminal for connecting portion 107c) as insert, fixing parts 111 are shaped by electrically insulating material (insulating resin) intercalation.For this, flexible wiring substrate 107 can be securely fixed on fixing parts 111.
Shown in example as other in this, if making the flexible wiring substrate 107 with flexibility contact with electrode layer 103b, then flexible wiring substrate 107 deforms corresponding to the flexure of oscillating plate 101.Its result, even if the Oscillation Amplitude of oscillating plate 101 becomes big, it is also possible to by making flexible wiring substrate 107 contact with the electrode layer 103b (the 2nd input electrode) of piezoelectric transducer 103, reliably ensure that and conducts.And, in the example that this is other, by the non-contact portion 107b of flexible wiring substrate 107, even if when oscillating plate 101 vibrates, it is possible to so that the contact site 107a of brush portion of flexible wiring substrate 107 reliably contacts with the electrode layer 103b of piezoelectric transducer 103.For this, in the piezoelectric vibrating device of this example, the electrical connections of piezoelectric transducer 103 and wire is difficult to bad connection.In the occasion using flexible wiring substrate 107, compared with the occasion using conductive brush 7, the abrasion of the contact portion of the flexible wiring substrate 107 of the 2nd input electrode (electrode layer 103b) tail off, so long-term reliability can be improved further.
It addition, the present invention can also by being expressed as.
(1) a kind of possess oscillating plate, the formation piezoelectric transducer on above-mentioned oscillating plate fixed one end, and is fixed on the piezoelectric vibrating device of the hammer parts of the other end of above-mentioned oscillating plate, it is characterised in that
Above-mentioned hammer parts have a rigidity bigger than above-mentioned oscillating plate, and have the shape that between above-mentioned oscillating plate interval extends towards the above-mentioned end side of above-mentioned oscillating plate.
(2) such as the piezoelectric vibrating device that above-mentioned (1) is recorded, the natural frequency of above-mentioned hammer parts is decided to be 3 times to 10 times of the natural frequency of the above-mentioned oscillating plate of the above-mentioned state defining piezoelectric transducer.
(3) such as the piezoelectric vibrating device that above-mentioned (1) or (2) are recorded, above-mentioned piezoelectric transducer formed above-mentioned oscillating plate with on the face of the opposition side in above-mentioned hammer parts face in opposite directions.
(4) such as the piezoelectric vibrating device that above-mentioned (1) or (2) are recorded, above-mentioned piezoelectric transducer formed above-mentioned oscillating plate with on above-mentioned hammer parts face in opposite directions.
(5) such as the piezoelectric vibrating device that above-mentioned (1) or (2) are recorded, the above-mentioned other end at above-mentioned oscillating plate be formed towards the through above-mentioned oscillating plate of thickness direction be more than or equal to a through hole,
Formed the material that above-mentioned hammer parts comprise heat deformable, and have, termination chimeric be more than or equal to through hole with above-mentioned from above-mentioned through hole prominent be more than or equal to a projection,
With the above-mentioned above-mentioned above-mentioned termination thermal deformation be more than or equal to a projection chimeric be more than or equal to a through hole, above-mentioned hammer parts are fixed on above-mentioned oscillating plate.
(6) such as piezoelectric vibrating device that above-mentioned (5) are recorded, above-mentioned hammer parts have: have prominent above-mentioned be more than or equal to a projection and the base portion of contact surface that contacts with above-mentioned oscillating plate, and one and the body extended along above-mentioned oscillating plate it is arranged to this base portion
Above-mentioned body with on above-mentioned oscillating plate face in opposite directions, be formed with the inclined plane tilted at a certain angle.
(7) piezoelectric vibrating device that any one in above-mentioned (1) to (6) is recorded, the metallic plate of the portion of terminal that above-mentioned oscillating plate is constituted above-mentioned piezoelectric transducer by above-mentioned one end is formed,
The metal erection scaffolding being also equipped with in the way of remaining above-mentioned portion of terminal in above-mentioned one end of above-mentioned oscillating plate fixing,
Above-mentioned erection scaffolding possesses the soldered portion of tabular and arranges all-in-one-piece attached portion with this soldered portion, and this soldered portion possesses the solder side on a side of a pair side in opposite directions in a thickness direction being welded on above-mentioned oscillating plate,
In above-mentioned soldered portion, between the side and above-mentioned solder side of the above-mentioned end side at above-mentioned oscillating plate and between the side and above-mentioned solder side of another side above-mentioned of above-mentioned oscillating plate, it is respectively formed with the flexure plane without seamed edge.
(8) piezoelectric vibrating device that any one in above-mentioned (1) to (7) is recorded, above-mentioned piezoelectric transducer possesses piezoceramics layer, and formed this piezoceramics layer with 1 electrode layer on above-mentioned hammer parts face in opposite directions,
Above-mentioned oscillating plate constitutes the 1st input electrode of above-mentioned piezoelectric transducer,
Above-mentioned 1 electrode layer constitutes the 2nd input electrode of above-mentioned piezoelectric transducer,
It is also equipped with the conductive brush contacted with above-mentioned 2nd input electrode,
Above-mentioned conductive brush possesses the contact site that can contact slidably with above-mentioned 2nd input electrode and this contact site is arranged to one and produces the plate spring part of the pushing force pushed towards above-mentioned input electrode by above-mentioned contact site, with terminal for connecting portion, this terminal for connecting portion and this plate spring part are arranged to one and are arranged on fixing parts, and these fixing parts are fixed on above-mentioned one end of above-mentioned oscillating plate.
(9) such as the piezoelectric vibrating device that above-mentioned (8) are recorded, fixation portions part is formed from an electrically-insulative material,
Above-mentioned conductive brush is shaped by intercalation by fixation portions part as insert.
Above embodiments of the present invention are specifically described, but the invention is not restricted to these embodiments and embodiment, it is of course possible to be changed in the scope of the technological thought of the present invention.
Industrial utilizability
According to the present invention, adopt the hammer parts that flexural rigidity is bigger than oscillating plate, accordingly it is possible to prevent oscillating plate resonates with hammer parts and causes that hammer parts absorb the vibration of oscillating plate.For this, be possible not only to reduce the reduction of Oscillation Amplitude of oscillating plate, and the convergence time of vibration can be shortened.And, hammer parts be shaped as between oscillating plate the empty standard width of a room in an old-style house every the shape extended towards the end side of oscillating plate, even if so the volume of hammer parts strengthens, hammering parts into shape and be also difficult to encounter oscillating plate.For this, piezoelectric transducer will not be caused damage, it is possible to strengthen oscillating plate Oscillation Amplitude.
Description of reference numerals
1 oscillating plate (the 1st input electrode)
1a one end
The 1c other end
1d through hole
3 piezoelectric transducers
3a piezoceramics layer
3b electrode layer (the 2nd input electrode)
3d portion of terminal
5 hammer parts
5a projection
5b contact surface
5c base portion
5d body
5f inclined plane
7 conductive brush
7a contact site
7b plate spring part
7c terminal for connecting portion
9 erection scaffoldings
9a is soldered portion
9b attached portion
9c solder side
9f, 9g side
9i flexure plane
11 fixing parts
Claims (12)
1. a piezoelectric vibrating device, possesses:
The metal oscillating plate that one end is fixed；
Form the piezoelectric transducer on above-mentioned oscillating plate, and
Being fixed on the hammer parts of the other end of above-mentioned oscillating plate, described piezoelectric vibrating device is characterised by:
The rigidity of above-mentioned hammer parts is bigger than above-mentioned oscillating plate, and the natural frequency of above-mentioned hammer parts is decided to be 3 times to 10 times of the natural frequency of the above-mentioned oscillating plate of the state defining above-mentioned piezoelectric transducer,
Above-mentioned hammer parts possess the base portion with the contact surface contacted with above-mentioned oscillating plate, and are arranged to one the body extended along above-mentioned oscillating plate with this base portion, above-mentioned body with above-mentioned oscillating plate face in opposite directions on be formed with inclined plane,
Above-mentioned piezoelectric transducer be formed on above-mentioned oscillating plate with the face of the opposition side in above-mentioned hammer parts face in opposite directions on and/or above-mentioned oscillating plate with on above-mentioned hammer parts face in opposite directions,
At the above-mentioned other end of above-mentioned oscillating plate, it is formed with the through hole be more than or equal to a through above-mentioned oscillating plate of through-thickness,
Be formed the material that above-mentioned hammer parts comprise heat deformable, and, have and termination chimeric be more than or equal to through hole with above-mentioned from above-mentioned through hole prominent be more than or equal to a projection,
Chimeric be more than or equal to through hole above-mentioned carry out thermal deformation be more than or equal to the above-mentioned termination of a projection with above-mentioned, and above-mentioned hammer parts be fixed on above-mentioned oscillating plate,
Above-mentioned one end of above-mentioned oscillating plate is formed by the metallic plate of the portion of terminal constituting above-mentioned piezoelectric transducer,
The metal erection scaffolding being also equipped with in the way of leaving above-mentioned portion of terminal in above-mentioned one end of above-mentioned oscillating plate fixing,
Above-mentioned erection scaffolding possesses the soldered portion of tabular, and arranges all-in-one-piece attached portion with this soldered portion, and this soldered portion possesses the solder side on a face in a pair side being welded on above-mentioned oscillating plate in a thickness direction,
In above-mentioned soldered portion, between the side and above-mentioned solder side of the above-mentioned one end by above-mentioned oscillating plate and by, between side and the above-mentioned solder side of the above-mentioned other end of above-mentioned oscillating plate, being respectively formed with the flexure plane without seamed edge,
Above-mentioned piezoelectric transducer possesses piezoceramics layer, and formed this piezoceramics layer with 1 electrode layer on above-mentioned hammer parts face in opposite directions,
Above-mentioned oscillating plate constitutes the 1st input electrode of above-mentioned piezoelectric transducer,
Above-mentioned 1 electrode layer constitutes the 2nd input electrode of above-mentioned piezoelectric transducer.
2. a piezoelectric vibrating device, possesses:
The metal oscillating plate that one end is fixed；
Form the piezoelectric transducer on above-mentioned oscillating plate, and
Being fixed on the hammer parts of the other end of above-mentioned oscillating plate, described piezoelectric vibrating device is characterised by:
The rigidity of above-mentioned hammer parts is bigger than above-mentioned oscillating plate, and the natural frequency of above-mentioned hammer parts is decided to be 3 times of the natural frequency of the above-mentioned oscillating plate be more than or equal to the state defining above-mentioned piezoelectric transducer,
Above-mentioned hammer parts possess the base portion with the contact surface contacted with above-mentioned oscillating plate, and are arranged to one and the body extended along above-mentioned oscillating plate with this base portion, above-mentioned body with above-mentioned oscillating plate face in opposite directions on be formed with inclined plane.
3. piezoelectric vibrating device as claimed in claim 2, it is characterised in that the natural frequency of above-mentioned hammer parts, is decided to be 3 times to 10 times of natural frequency of the above-mentioned oscillating plate of the state defining above-mentioned piezoelectric transducer.
4. as claimed in claim 2 or claim 3 piezoelectric vibrating device, it is characterised in that above-mentioned piezoelectric transducer formed above-mentioned oscillating plate with the face of the opposition side in above-mentioned hammer parts face in opposite directions on or above-mentioned oscillating plate with on above-mentioned hammer parts face in opposite directions.
5. as claimed in claim 2 or claim 3 piezoelectric vibrating device, it is characterised in that above-mentioned piezoelectric transducer formed above-mentioned oscillating plate with the face of the opposition side in above-mentioned hammer parts face in opposite directions on and above-mentioned oscillating plate with on above-mentioned hammer parts face in opposite directions.
6. piezoelectric vibrating device as claimed in claim 2 or claim 3, it is characterised in that the above-mentioned other end at above-mentioned oscillating plate is formed with the through hole be more than or equal to a through above-mentioned oscillating plate of through-thickness,
Formed the material that above-mentioned hammer parts comprise heat deformable, and, have and termination chimeric be more than or equal to through hole with above-mentioned from above-mentioned through hole prominent be more than or equal to a projection,
Chimeric be more than or equal to through hole with above-mentioned above-mentioned carry out thermal deformation be more than or equal to the above-mentioned termination of a projection and above-mentioned hammer parts are fixed on above-mentioned oscillating plate.
7. piezoelectric vibrating device as claimed in claim 2 or claim 3, it is characterised in that above-mentioned one end of above-mentioned oscillating plate is formed by the metallic plate of the portion of terminal constituting above-mentioned piezoelectric transducer,
It is also equipped with the metal erection scaffolding fixed in the way of above-mentioned portion of terminal is left in the above-mentioned one end at above-mentioned oscillating plate,
Above-mentioned erection scaffolding possesses the soldered portion of tabular and arranges all-in-one-piece attached portion with this soldered portion, and this soldered portion possesses the solder side on a face in a pair side being welded on above-mentioned oscillating plate in a thickness direction,
In above-mentioned soldered portion, between the side and above-mentioned solder side of the above-mentioned one end by above-mentioned oscillating plate and by, between side and the above-mentioned solder side of the above-mentioned other end of above-mentioned oscillating plate, being respectively formed with the flexure plane without seamed edge.
8. as claimed in claim 2 or claim 3 piezoelectric vibrating device, it is characterised in that above-mentioned piezoelectric transducer possesses piezoceramics layer, and formed this piezoceramics layer with 1 electrode layer on above-mentioned hammer parts face in opposite directions,
Above-mentioned oscillating plate constitutes the 1st input electrode of above-mentioned piezoelectric transducer,
Above-mentioned 1 electrode layer constitutes the 2nd input electrode of above-mentioned piezoelectric transducer,
Described piezoelectric vibrating device is also equipped with the conductive brush contacted with above-mentioned 2nd input electrode,
Above-mentioned conductive brush possesses the contact site that can contact slidably with above-mentioned 2nd input electrode and this contact site is arranged to one and produces the plate spring part of the pushing force pushed towards above-mentioned input electrode by above-mentioned contact site, with terminal for connecting portion, this terminal for connecting portion and this plate spring part are arranged to one and are arranged on fixing parts, and these fixing parts are fixed on above-mentioned one end of above-mentioned oscillating plate.
9. as claimed in claim 2 or claim 3 piezoelectric vibrating device, it is characterised in that above-mentioned piezoelectric transducer possesses piezoceramics layer, and formed this piezoceramics layer with 1 electrode layer on above-mentioned hammer parts face in opposite directions,
Above-mentioned oscillating plate constitutes the 1st input electrode of above-mentioned piezoelectric transducer,
Above-mentioned 1 electrode layer constitutes the 2nd input electrode of above-mentioned piezoelectric transducer,
Described piezoelectric vibrating device is also equipped with the conductive brush contacted with above-mentioned 2nd input electrode,
Above-mentioned conductive brush possesses the contact site that can contact slidably with above-mentioned 2nd input electrode and this contact site is arranged to one and produces the plate spring part of the pushing force pushed towards above-mentioned input electrode by above-mentioned contact site, with terminal for connecting portion, this terminal for connecting portion is fixed on fixing parts, these fixing parts and this plate spring part are arranged to one and are fixed on above-mentioned one end of above-mentioned oscillating plate
Fixation portions part is formed from an electrically-insulative material,
Fixation portions part is shaped by intercalation with above-mentioned conductive brush for insert.
10. as claimed in claim 2 or claim 3 piezoelectric vibrating device, it is characterised in that above-mentioned piezoelectric transducer possesses piezoceramics layer, and formed this piezoceramics layer with 1 electrode layer on above-mentioned hammer parts face in opposite directions,
Above-mentioned oscillating plate constitutes the 1st input electrode of above-mentioned piezoelectric transducer,
Above-mentioned 1 electrode layer constitutes the 2nd input electrode of above-mentioned piezoelectric transducer,
Described piezoelectric vibrating device is also equipped with being connected with above-mentioned 2nd input electrode and having and the flexible wiring substrate of the discontiguous distribution of above-mentioned oscillating plate.
11. as claimed in claim 2 or claim 3 piezoelectric vibrating device, it is characterised in that above-mentioned piezoelectric transducer possesses piezoceramics layer, and formed this piezoceramics layer with 1 electrode layer on above-mentioned hammer parts face in opposite directions,
Above-mentioned oscillating plate constitutes the 1st input electrode of above-mentioned piezoelectric transducer,
Above-mentioned 1 electrode layer constitutes the 2nd input electrode of above-mentioned piezoelectric transducer,
Described piezoelectric vibrating device is also equipped with one end and is connected with above-mentioned 2nd input electrode and has and the flexible wiring substrate of the discontiguous distribution of above-mentioned oscillating plate,
Above-mentioned flexible wiring substrate and above-mentioned distribution are crossed above-mentioned one end of above-mentioned oscillating plate and are extended.
12. as claimed in claim 2 or claim 3 piezoelectric vibrating device, it is characterised in that above-mentioned piezoelectric transducer possesses piezoceramics layer, and formed this piezoceramics layer with 1 electrode layer on above-mentioned hammer parts face in opposite directions,
Above-mentioned oscillating plate constitutes the 1st input electrode of above-mentioned piezoelectric transducer,
Above-mentioned 1 electrode layer constitutes the 2nd input electrode of above-mentioned piezoelectric transducer,
Described piezoelectric vibrating device is also equipped with one end and is connected with above-mentioned 2nd input electrode and has and the flexible wiring substrate of the discontiguous distribution of above-mentioned oscillating plate,
Above-mentioned flexible wiring substrate and above-mentioned distribution are crossed above-mentioned one end of above-mentioned oscillating plate and are extended,
Fixation portions part is formed from an electrically-insulative material,
Fixation portions part is shaped by intercalation with flexible wiring substrate for insert.
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| JP2012007638 | 2012-01-18 | ||
| JP2012-007638 | 2012-01-18 | ||
| PCT/JP2012/084074 WO2013108573A1 (en) | 2012-01-18 | 2012-12-28 | Piezoelectric vibration device |
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| CN104053511A CN104053511A (en) | 2014-09-17 |
| CN104053511B true CN104053511B (en) | 2016-06-29 |
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| JP6305743B2 (en) * | 2013-12-06 | 2018-04-04 | 北陸電気工業株式会社 | Piezoelectric vibration actuator |
| US10707832B2 (en) | 2016-09-01 | 2020-07-07 | Tdk Corporation | Vibrating device |
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| CN1137844A (en) * | 1994-11-07 | 1996-12-11 | 松下电器产业株式会社 | Piezoelectric actuator and pyroelectric infrared-ray sensor using the same |
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| JPH11164396A (en) * | 1997-09-25 | 1999-06-18 | Matsushita Electric Ind Co Ltd | Piezoelectric loudspeaker and its manufacture |
| JPH11244783A (en) * | 1998-02-27 | 1999-09-14 | Kyocera Corp | Piezoelectric vibrator |
| US6198206B1 (en) * | 1998-03-20 | 2001-03-06 | Active Control Experts, Inc. | Inertial/audio unit and construction |
-
2012
- 2012-12-28 WO PCT/JP2012/084074 patent/WO2013108573A1/en active Application Filing
- 2012-12-28 JP JP2013554229A patent/JP5992928B2/en not_active Expired - Fee Related
- 2012-12-28 CN CN201280067426.8A patent/CN104053511B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1137844A (en) * | 1994-11-07 | 1996-12-11 | 松下电器产业株式会社 | Piezoelectric actuator and pyroelectric infrared-ray sensor using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5992928B2 (en) | 2016-09-14 |
| CN104053511A (en) | 2014-09-17 |
| WO2013108573A1 (en) | 2013-07-25 |
| JPWO2013108573A1 (en) | 2015-05-11 |
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