WO2016140442A1 - 실시간 진동 피드백을 제공하는 압전소자 진동장치 - Google Patents
실시간 진동 피드백을 제공하는 압전소자 진동장치 Download PDFInfo
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- WO2016140442A1 WO2016140442A1 PCT/KR2016/001247 KR2016001247W WO2016140442A1 WO 2016140442 A1 WO2016140442 A1 WO 2016140442A1 KR 2016001247 W KR2016001247 W KR 2016001247W WO 2016140442 A1 WO2016140442 A1 WO 2016140442A1
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- vibration
- piezoelectric
- piezoelectric element
- vibrator
- electrode substrate
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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
- B06B1/0603—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
-
- 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
- H10N30/883—Additional insulation means preventing electrical, physical or chemical damage, e.g. protective coatings
Definitions
- the present invention relates to a vibration device, and more particularly, to a piezoelectric device vibration device that provides real-time vibration feedback for generating vibration by the piezoelectric effect.
- Haptic Hapic
- Simple haptic technology includes a notification function using a vibration motor widely used in mobile phones, and is widely applied in various fields such as medical simulators and game devices.
- haptic devices will be installed as well as monitors and speakers. This is because the haptic recognition rate of the user is high by installing the haptic device in the portable electronic device, and it has the advantage of excellent interoperability with the IT device.
- the vibration motor of the mobile terminal which is a specific example of applying haptic technology to a portable electronic device such as a smartphone, adds vibration to the sound and video output from the existing mobile terminal and makes it feel three-dimensional.
- the vibration motor for the mobile terminal has a difficulty in arranging parts when the vibration device is installed in a mobile terminal having a narrow installation space, and in the case of the linear motor, the pre-stored waveform is loaded to a frequency.
- the execution circuit is complex because it must be driven.
- the response time (response time) of the vibration motor is not secured at the same time, and the size is miniaturized, there was a problem that the vibration amount is insufficient.
- an object of the present invention is to provide a piezoelectric element vibrating apparatus that provides an ultra-thin real-time vibration feedback that is easy to install while freely arranging the installation space in installing the piezoelectric element vibrating apparatus.
- another object of the present invention is to provide a piezoelectric element vibrating apparatus that can increase the amount of vibration of the piezoelectric element vibrating device while reducing noise caused by vibration and preventing breakage due to drop impact.
- the present invention provides a vibration by applying a driving voltage to a piezoelectric vibrator (2) (2a) (2b) having a piezoelectric element layer (6) with an electrode substrate (4) of a conductive material.
- a piezoelectric element vibrating device for generating a piezoelectric element wherein an insulating member 10 is formed on the piezoelectric element layer 6 to prevent the applied driving voltage from leaking, and the piezoelectric vibrators 2, 2a, and 2b. It is characterized by comprising a leg 8 for extending below the electrode substrate 4 to attach and install the piezoelectric vibrating bodies 2, 2a and 2b.
- the piezoelectric element vibration to generate a vibration by applying a driving voltage to the piezoelectric vibrating body (2) (2a) (2b) having a piezoelectric element layer (6) with an electrode substrate (4) of a conductive material
- a device is provided, wherein an insulating member 10 is formed in the piezoelectric element layer 6 to prevent leakage of the applied driving voltage, and piezoelectric vibrators 2 and 2a (under the electrode substrate 4).
- 2b) is characterized by comprising an insulated fixing housing 18 for attaching and installing.
- the piezoelectric element vibration to generate a vibration by applying a driving voltage to the piezoelectric vibrating body (2) (2a) (2b) having a piezoelectric element layer (6) with an electrode substrate (4) of a conductive material
- a driving voltage to the piezoelectric vibrating body (2) (2a) (2b) having a piezoelectric element layer (6) with an electrode substrate (4) of a conductive material
- an insulating member 10 is formed on the piezoelectric element layer 6 to prevent leakage of an applied driving voltage, and piezoelectric vibrators are formed at both ends of the piezoelectric vibrators 2, 2a, and 2b.
- (2) (2a) (2b) is characterized in that the installation by fitting the bracket 22 for attaching and installing.
- the piezoelectric element vibration to generate a vibration by applying a driving voltage to the piezoelectric vibrating body (2) (2a) (2b) having a piezoelectric element layer (6) with an electrode substrate (4) of a conductive material
- a device is provided, wherein an insulating member 10 is formed in the piezoelectric element layer 6 to prevent leakage of the applied driving voltage, and piezoelectric vibrators 2 and 2a (under the electrode substrate 4).
- 2b) is provided with an elastic member 32 to increase the vibration efficiency
- the lower portion of the elastic member 32 is provided with a lower plate 36 for attaching and installing the piezoelectric vibrator (2) (2a) (2b) It is characterized by the configuration.
- the piezoelectric element vibration to generate a vibration by applying a driving voltage to the piezoelectric vibrating body (2) (2a) (2b) having a piezoelectric element layer (6) with an electrode substrate (4) of a conductive material A device is formed, and the piezoelectric element layer 6 is formed with an insulating member 10 for preventing leakage of the applied driving voltage, and formed to surround the entire piezoelectric vibrator 2, 2a, and 2b. It is characterized by constituting a soft case 38 for increasing the amount of vibration and reducing vibration noise and for attaching and installing the piezoelectric vibrators 2, 2a and 2b.
- the piezoelectric device vibrator can be simply attached and installed in the mobile terminal, thereby simplifying the installation process, and the thickness of the piezoelectric device vibrator can be reduced to be installed at any position in the mobile terminal. There is an effect that can provide a haptic signal to the user by a quick vibration response.
- the piezoelectric device vibrating apparatus of the present invention can increase the amount of vibration and reduce the vibration noise while minimizing the size, and has an effect of preventing the piezoelectric vibrator from being damaged by the drop impact.
- FIG. 1 is a perspective configuration diagram of a piezoelectric device vibrator providing real-time vibration feedback according to a preferred embodiment of the present invention
- Figure 2 is a sectional view of the installation of the unimorph piezoelectric element vibration device according to an embodiment of the present invention
- FIG. 3 is a state diagram used in FIG.
- FIG. 4 is a configuration diagram of a bimorph piezoelectric element vibration device according to another embodiment of the present invention.
- 5 to 6b is a configuration diagram of a multimorph piezoelectric element vibration device according to another embodiment of the present invention.
- FIG. 7 to 26 is a configuration diagram of the piezoelectric vibrating body according to various embodiments of the present invention.
- the piezoelectric element vibrator providing real-time vibration feedback of the present invention is a vibration means for generating vibration by using a reverse piezoelectric effect.
- the piezoelectric effect is a voltage generated when the piezoelectric material is stretched by applying force to the piezoelectric material, on the contrary, the property of stretching when a voltage is applied to the piezoelectric material is called a reverse piezoelectric effect.
- piezoelectric effects include ignition piezoelectric elements (electric lighters, ignition type gas ranges), pressure sensors, acceleration sensors, and the like.
- Examples of reverse piezoelectric effects include actuators and piezo motors.
- the vibration device of the present invention is to implement the vibration means by using the reverse piezoelectric effect, to form a piezoelectric element layer of the piezoelectric material and to generate vibration by applying a voltage.
- piezoelectric materials include composite ceramic PZT ((Pb (Ti, Zr) O 3 ), ferroelectric barium titanate (BaTiO 3 ), and the like to form a piezoelectric ceramic.
- Vibrators using the piezoelectric effect are largely divided into unimorph, bimorph, multimorph, etc., and the bimorph type is serial in accordance with the polarization direction. It is divided into parallel.
- the present invention discloses a configuration for installing piezoelectric vibrators of various types, such as unimorph, bimorph, and multimorph, in casings in a mobile terminal.
- the mobile terminal may be a mobile terminal having a call function (for example, a smartphone), a medical device, a tablet PC, a gaming device, a vibration mouse, a vibration remote control, a vibration keypad, a protective case for a mobile terminal, and the like. Electronics for providing vibration feedback.
- Figure 1 shows the configuration of a unimorph piezoelectric element vibration device according to an embodiment of the present invention.
- the piezoelectric vibrator 2 is formed by arranging the piezoelectric element layer 6 on the top of the electrode substrate 4 having a good electrical conductivity.
- the piezoelectric vibrator 2 expands and contracts by alternately applying (+,-) voltages to the upper and lower electrodes of the piezoelectric element layer 6 of the piezoelectric vibrator 2 according to the embodiment of the present invention. Due to the bending phenomenon, vibration is generated according to the frequency of the driving voltage applied. As the positive and negative voltages are alternately applied to the upper and lower surfaces of the piezoelectric element layer 6, the voltage is also applied to the electrode substrate 4 bonded to the lower surface of the piezoelectric element layer 6.
- a voltage is applied to the upper electrode of the electrode substrate 4 and the piezoelectric element layer 6 in the form of a flexible PCB (FPCB). If necessary, it is also possible to apply a voltage using a wire.
- FPCB flexible PCB
- FIG. 2 is a cross-sectional view of the piezoelectric vibrator 2 according to an embodiment of the present invention
- FIG. 3 is a state diagram in which the piezoelectric vibrator 2 is installed in the mobile terminal.
- An insulating member 10 is attached to prevent the driving voltage from leaking into the mobile terminal.
- the insulating member 10 may attach an insulating film or form an insulating film using epoxy, urethane, or the like.
- a porous tape may be further provided on the piezoelectric element layer 6 having the insulating member 10 to absorb noise generated from the piezoelectric vibrator 2 together with the insulation.
- Poron tape is a high-density cell structure urethane foam thin tape, which has insulation effect and noise absorption effect to reduce vibration noise of the piezoelectric vibrator (2) and absorbs external shocks to prevent damage to the piezoelectric vibrator (2). Has the function to
- the electrode substrate 4 of the present invention may be made of a material such as brass, stainless steel, Ni-alloy, aluminum, etc., the weight piece 12 for increasing the vibration generated by applying a voltage to the lower end of the electrode substrate 4 Are attached to a predetermined position.
- the vibration caused by the up and down bending displacement of the piezoelectric vibrating body 2 is generated, but the vibration amount transmitted to the mobile terminal is weak, so that the vibration generated by attaching the weight piece 12 having a certain weight to the piezoelectric element layer 6 You can increase it.
- the leg portion 8 in order to attach the piezoelectric vibrator 2 to the casing 16 inside the mobile terminal, the leg portion 8 is formed by extending the electrode substrate 4.
- the leg portion 8 is formed in the outward direction of the piezoelectric vibrator 2 as shown in FIG. 2, and when installed in a narrow space such as inside the mobile terminal, the inside of the piezoelectric vibrator 2 as shown in FIG. 6. It is also possible to reduce the installation space by extending the form.
- the leg portion 8 is attached to the casing 16 in the mobile terminal using an adhesive or double-sided tape, or attached by welding to fix the piezoelectric vibrator 2.
- the leg portion 8 extended to prevent the current applied to the electrode substrate 4 from leaking to the casing 16 in the mobile terminal. It is preferable to insulate by coating a synthetic resin material such as silicone, urethane, epoxy, polyester, acrylic to form an insulating film.
- the coating layer may be soft epoxy, soft urethane, silicone, or the like.
- a unimorph piezoelectric device vibrating device as shown in FIG. 4, a bimorph having a piezoelectric element layer 6 disposed at both ends with an electrode substrate 4 in the center.
- the piezoelectric vibrators 2a and 2b are formed of a piezoelectric vibrator 2 and a multimorph piezoelectric vibrator having a plurality of piezoelectric element layers 6 stacked on top of the electrode substrate 4 as shown in FIG. It is also possible to form and install in the mobile terminal.
- FIG. 6A to 6B illustrate a piezoelectric vibrator (2) in the casing 16 of the mobile terminal when the piezoelectric vibrator 2b is formed by the multimorph piezoelectric vibrator.
- Brackets 22 for attaching and installing 2b) may be formed at both ends of the piezoelectric vibrator 2b.
- the bracket 22 is fitted to both ends of the electrode substrate 4, and the brackets 22 at both ends are directly attached to the inner surface of the casing 16 to fix the piezoelectric vibrator 2b.
- a protective tape 24 may be attached to the outer surface of the piezoelectric vibrating body 2b.
- the protective tape 24 may be attached to one surface or both surfaces of the piezoelectric vibrating body 2b to prevent damage to the piezoelectric element layer 6 due to vibration of the piezoelectric vibrating body 2b or falling and impact of the mobile terminal. In addition to preventing the weight piece 12 from falling off may have an insulating effect.
- the bracket 22 After attaching the protective tape 24, the bracket 22 is fitted to both ends of the piezoelectric vibrating body 2b, and then the bracket 22 can be installed inside the mobile terminal.
- the protective tape 24 may be attached even when the piezoelectric element layer 6 is formed in a unimorph or bimorph type, and the piezoelectric vibrator 2, 2a, and 2b may be attached to cover the entire piezoelectric vibrating body 2. good.
- the size of the piezoelectric vibrator 2b may be reduced and the thickness thereof may be reduced, thereby providing a narrow installation space as in the mobile terminal. If it is attached to the place, the restrictions of the space according to the installation position is reduced, it is possible to attach to various locations.
- the bracket 22 is formed to attach and install the multimorph piezoelectric vibrator 2b.
- the brackets 22 are formed at both ends. It is also possible to fix by attaching and fitting the piezoelectric vibrators 2 and 2a.
- FIG. 7 to 8 show a configuration in which the piezoelectric vibrator 2 is mounted on the casing 16 in the mobile terminal by variously modifying the shape of the electrode substrate 4 according to the present invention.
- the piezoelectric vibrator 2 shown in FIG. 7 is bent by extending both ends of the electrode substrate 4 into the piezoelectric vibrator 2, and attaching the formed leg 8 to the casing 16 to form a piezoelectric body.
- the vibrating body 2 is fixed.
- the leg 8 is formed to be bent inside the piezoelectric vibrator 2, when the piezoelectric vibrator 2 is attached to the casing 16 in the mobile terminal, the installation space takes up less space, and space can be effectively utilized. .
- FIG. 8 shows an installation configuration of a piezoelectric vibrator 2 according to another embodiment of the present invention.
- the electrode substrate 4 is formed in a box shape to attach the piezoelectric vibrator 2 to a casing 16 in a mobile terminal. do.
- the piezoelectric vibrator 2 installed in an electronic device such as a mobile terminal is very small in size, in particular the electrode substrate 4 of the present invention It is compact and is formed into a thin thin film having a thickness of 0.1 to 0.3T.
- the electrode substrate 4 may be formed into a thin thin film and may be wrinkled or deformed when handled.
- the piezoelectric vibrator 2 may be attached by attaching a leg portion 8 formed by extending and bending the electrode substrate 4 of the thin film. If it is installed in the casing (16) does not properly perform the function for fixing the piezoelectric vibrator (2) because the leg portion is not subjected to force.
- the support member 14 for firmly supporting the leg portion 8 formed on both ends of the electrode substrate 4 is provided.
- the brace member 14 is formed by bending both sides of the leg portion 8 in a " ⁇ " shape.
- the brace member 14 is provided on the leg portion 8 so as to be attached to the casing 16 in the mobile terminal.
- the piezoelectric vibrator 2 of the present invention when the vibration occurs, the up and down bending phenomenon occurs due to the expansion and contraction phenomenon.
- the piezoelectric vibrator 2 has a bending motion in consideration of the bending range and the thickness of the weight piece 12. It is preferable to set the height of the support member 14 so as to secure a space that can occur.
- the piezoelectric vibrator 2 is attached to the casing 16 by attaching the leg portion 8 extending from the electrode substrate 4 to the casing 16. It is also possible to fix and provided with a housing for fixing (18) bent to form a separate process to install in the casing (16).
- the fixing housing 18 is fixed by being bonded or welded to the lower side of the electrode substrate 4, and the piezoelectric vibrating body 2 is provided by attaching the bottom surface of the fixing housing 18 to the casing 16. Since the fixing housing 18 does not need to use the same material as the electrode substrate 4, it is preferable to use a material having good strength, and the insulating housing 18 may be insulated by manufacturing in a separate process. The process is simple, and the process of manufacturing the piezoelectric vibrator 2 is simplified. In addition, by manufacturing the fixing housing 18 using a non-conductive material, it is possible to prevent the current applied to the electrode substrate 4 from flowing into the fixing housing 18 and leaking into the casing 16.
- the supporting brace member 14 may be provided on the upper portion of the fixing housing 18. Can be.
- the soundproof case 20 may be formed of a metal plate, a plastic, or a rubber material, and in particular, when the plastic or rubber material is used, an effect of suppressing sound generated during vibration may be increased.
- the piezoelectric vibrator 2 is accommodated in the inner space of the vibration module case 26 by inserting the piezoelectric vibrator 2 from one side of the vibration module case 26 of the tubular body in which the inner space is formed. Done.
- the vibration module case 26 is preferably made of a material such as aluminum, stainless steel, iron plate and a separate synthetic resin molding.
- both ends are finished with the sealing member 28 as shown in FIG. 15A.
- the sealing member 28 is made of silicon, UV adhesive, epoxy, etc., and the sound wave generated by the vibration of the piezoelectric vibrator 2 is externally finished by closing both ends of the vibration module case 26 with the sealing member 28.
- the soundproofing role does not leak out.
- the piezoelectric vibrator 2 is inserted into the vibration module case 26 to have a self-protection function.
- the blocking plate 30 may be formed at both ends of the vibration module case 26 to seal the piezoelectric vibrator 2 fitted inside.
- the blocking plate 30 may be integrally formed with the vibration module case 26 or a separate blocking plate 30 may be installed, and both ends of the vibration module case 26 may be open to form a piezoelectric vibrating body. (2) in the installed form to block the open ends of the blocking plate 30 to act as a soundproof so that the vibration sound waves do not leak to the outside.
- the piezoelectric vibrator 2 is inserted into the vibration module case 26, and the bottom surface of the vibration module case 26 is fixed to the inner surface of the casing 16 with an adhesive.
- the adhesive for fixing the vibration module case 26 is preferably a double-sided tape, it is also possible to use epoxy, acrylic adhesive or the like.
- the adhesive area is widened and thus can be stably fixed.
- the piezoelectric vibrator 2 The effect of transmitting the generated vibration to the mobile terminal through the casing 16 also increases.
- the piezoelectric vibrator 2 in the vibration module case 26 as described above, there is an effect that the working time can be shortened during the work process of attaching the vibration device to the mobile terminal.
- the piezoelectric vibrating body 2 is formed by forming free ends of the piezoelectric vibrating body 2, rather than being completely fixed. Since the vibration width due to the up and down bending displacement of) is not limited, the variable vibration control is possible and a larger vibration can be obtained.
- the elastic member 32 is provided at both ends of the electrode substrate 4 in order to increase the vibration efficiency of the piezoelectric vibrator 2b.
- the elastic member 32 may be made of synthetic resin such as silicone urethane, synthetic rubber, natural rubber, or the like, and may be any material having soft elasticity.
- the elastic member 32 may be formed on both ends of the electrode substrate 4 by adhesion, bonding and injection, and formed thicker than the thickness of the weight piece 12 below the electrode substrate 4 to form a piezoelectric vibrator 2b. It is desirable to allow the up and down bending displacement of).
- the vibration efficiency is increased during vibration of the weight piece 12 due to the bending of the piezoelectric element layer 6 and the electrode substrate 4.
- Free expansion and contraction eliminates the resonance frequency constraint, allowing variable vibration control of various frequencies.
- vibration noise due to the bending displacement of the piezoelectric element layer 6 and the electrode substrate 4 is attenuated.
- a lower plate 36 is further provided below the electrode substrate 4 provided with the elastic member 32 to install the piezoelectric vibrator 2b to the casing 16, and the casing 16 is bonded to the lower plate 36. To fix the piezoelectric vibrating body 2b.
- the piezoelectric vibrator 2b is provided on the upper portion of the piezoelectric vibrator 2b to protect the breakage caused by the dropping impact of the piezoelectric vibrator 2b and to reduce noise caused by vibration. It is also possible to cover the entirety of the cover 34 to cover the top of 2b).
- the cover 34 may be formed of a metal plate, a plastic, or a rubber material, and in particular, when the plastic or rubber material is used, an effect of suppressing sound generated during vibration may be increased.
- 22 to 24 show another form of the electrode substrate 4 constituting the piezoelectric vibrator 2b.
- the piezoelectric vibrating body 2b is formed into a multimorph type having a large vibration force, and thus the piezoelectric element layer 6 is formed to have a small size. It is possible to form a narrow left and right width of the electrode substrate 4 to which 6) is not attached.
- piezoelectric vibration is minimized by minimizing both edge portions of the electrode substrate 4 to which the piezoelectric element layer 6 is not attached as shown in FIG.
- the body 2b becomes smaller in size and free space is formed in the electronic device, installation of other parts may be facilitated.
- the piezoelectric vibration of the shape as shown in FIG. 24 is attached to the electrode substrate 4 by attaching the weight piece 12 of the shape as shown in FIG. 23 in order to utilize the free space created by the narrow width of both ends of the electrode substrate 4.
- Sieve 2b can be formed, and the vibration effect can be enhanced by increasing the weight of the weight piece 12.
- the vibration efficiency is increased, which is the size of the piezoelectric vibrator 2b Even if it is small, the vibration effect is to increase the effect.
- 25 to 26 show a configuration of a piezoelectric element vibration device according to another embodiment of the present invention.
- the piezoelectric vibrating body 2b of the present invention may include a case 38 capable of attaching and fixing the piezoelectric vibrating body 2b to the inside of the mobile terminal while reducing the noise caused by the vibration while increasing the amount of vibration.
- the case 38 may be formed of a soft material such as natural rubber or synthetic rubber, and in particular, silicone, neoprene, EPDM, fluorine rubber, or acrylic rubber may be used. In addition, any elastic material such as soft synthetic resin can be used.
- Case 38 of the present invention has the function of the bracket 22 for attaching and fixing the piezoelectric vibrating body 2b described above, the elastic member 32 for increasing vibration efficiency, and the cover 34 for reducing vibration noise.
- the process can be simplified by integrally forming the piezoelectric vibrating body 2b.
- the upper coupling portion 40 and the lower coupling portion 42 is coupled to surround the piezoelectric vibrating body (2b) and the electrode substrate (4) at both ends of the lower coupling portion 42 ) Forms a seating portion 44 into which it is fitted.
- Both ends of the piezoelectric vibrator 2b are fixed by the coupling of the case 38 as the upper and lower coupling parts 40 and 42 are coupled to surround the entire piezoelectric vibrator 2b with a soft rubber material. .
- vibration noise due to the bending displacement of the piezoelectric element layer 6 and the electrode substrate 4 is attenuated.
- the vibration sound of the piezoelectric vibrator 2b is soft.
- the noise of the piezoelectric vibrator 2b is reduced, and the piezoelectric vibrator 2b is protected by the case 38 made of a rubber material. It serves to absorb the shock applied to 2b) to prevent breakage of the piezoelectric vibrator 2b.
- the shape of the piezoelectric element layer 6 is not limited to a specific shape as shown in the drawings, and in various embodiments, the piezoelectric element layer 6 may be unimorphed, bimorphed, or multimorphed. It is possible to form piezoelectric vibrators 2 (2a) and (2b). In addition to the bender type piezoelectric vibrators 2, 2a and 2b shown in the embodiment of the present invention, the piezoelectric vibrators 2, 2a and 2b of the disc type may be formed.
- the piezoelectric vibrators 2, 2a, and 2b of the present invention may be installed in various electronic devices to deliver a vibration response, and in addition to the embodiments described below, the vibration response may be transmitted to a user. It will be possible to apply to various electronic devices.
- Piezoelectric vibrator (2) (2a) (2b) of the present invention can be installed in the mobile terminal to transmit a quick vibration response to the user, as the thickness is extremely thin compared to the conventional vibration motor, the installation space is narrow movement It is effective to install on the terminal.
- the response speed is fast, you can feel the sense of synchronization with the sound and video, and the control to adjust the size and speed of vibration within a wide bandwidth range can give the user a sense of reality.
- the piezoelectric vibrator (2) (2a) (2b) of the present invention is installed inside the vibrating mouse to transmit a quick vibration response corresponding to the displayed visual information to the user's hand, thereby providing a sense of simultaneousness and realism according to the user's mouse operation.
- Piezoelectric vibrating bodies (2) (2a) (2b) of the present invention can be installed in a smart input device, for example, a keypad or a remote control in conjunction with a smart TV, and can transmit a feeling of operation at the fingertips at the touch of a button of the smart input device. Accurate signal input of the thinner smart input device can be achieved.
- the screen information output through the smart TV can be transmitted to the user as a vibration feedback, and in particular, by transmitting a vibration corresponding to the game image output to the screen to the user can give a sense of realism and a simultaneous sense of rapid vibration response.
- the piezoelectric vibrators 2, 2a and 2b of the present invention can be installed in a controller of a game machine such as Sony's PSP and Nintendo so that a vibration response corresponding to a game image can be delivered to the user in real time during game operation.
- a game machine such as Sony's PSP and Nintendo
- the piezoelectric vibrators 2, 2a, and 2b of the present invention have a faster vibration response speed than those of the conventional vibration motor, and are capable of variable vibration in a wide bandwidth. The realism by vibration can be transmitted.
- Piezoelectric vibrating body (2) (2a) (2b) of the present invention is installed in a protective case for preventing damage of a mobile terminal such as a smart phone vibration in accordance with the image and sound output in the state equipped with a protective case on the smartphone Can be delivered to the user in real time.
- Vibration feedback control corresponding to the image and sound of the smart phone is equipped with a separate control module for controlling the piezoelectric vibrating body (2) (2a) (2b) in the protective case of the mobile terminal and the smartphone via wired or wireless
- the vibration control signal is received from the system to provide vibration feedback.
- the protective case for a mobile terminal may have a built-in auxiliary battery having a large capacity to assist the main battery of the smartphone, and supply power required for the discharge of the main battery or the vibration of the piezoelectric vibrators 2, 2a and 2b. Will be used at
- the present invention can simplify the assembly process as it can be easily attached and installed in the installation of the piezoelectric element vibrating device, the thickness of the piezoelectric element vibrating device can be installed in any position.
- the piezoelectric element vibrating apparatus of the present invention can increase the amount of vibration and reduce the vibration noise while minimizing the size, and can prevent the piezoelectric vibrators 2, 2a and 2b from being damaged by the drop impact. It works.
- the piezoelectric device vibration device of the present invention can be used to provide vibration feedback by installing on a mobile terminal including a smart phone, a medical device, a tablet PC, a game device, a vibration mouse, a vibration remote control, a vibration keypad, a protective case for a mobile terminal, and the like. Can be.
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Abstract
Description
Claims (20)
- 전도성있는 소재의 전극 기판(4)을 두고 압전소자층(6)을 배치한 압전진동체(2)(2a)(2b)에 구동전압을 인가하여 진동을 발생시키는 압전소자 진동장치를 구성하되, 압전소자층(6)에는 인가된 구동전압이 누설되는 것을 방지하기 위한 절연부재(10)를 형성하고, 압전진동체(2)(2a)(2b)의 하부에는 전극 기판(4)으로부터 연장형성되어 압전진동체(2)(2a)(2b)를 부착설치하기 위한 다리부(8)를 구비하여 구성함을 특징으로 하는 실시간 진동 피드백을 제공하는 압전소자 진동장치.
- 제1항에 있어서,다리부(8)는 압전진동체(2)(2a)(2b)의 내측 또는 외측 중 어느 하나로 절곡 형성되게 구성함을 특징으로 하는 실시간 진동 피드백을 제공하는 압전소자 진동장치.
- 제2항에 있어서,압전진동체(2)(2a)(2b)의 내측으로 절곡된 다리부(8)는 양단을 연결 형성하여 부착되는 접착면적이 확대되게 구성함을 특징으로 하는 실시간 진동 피드백을 제공하는 압전소자 진동장치.
- 제1 내지 제3항 중 어느 한 항에 있어서,다리부(8)의 양측면에는 부착된 압전진동체(2)(2a)(2b)의 고정을 견고하게 지지하는 버팀부재(14)를 "┗┛" 형상으로 절곡 형성함을 특징으로 하는 실시간 진동 피드백을 제공하는 압전소자 진동장치.
- 제1항에 있어서,다리부(8)에는 실리콘이나 우레탄, 에폭시, 폴리에스터, 아크릴을 포함하는 합성수지소재 중 어느 하나로 코팅하여 절연피막이 형성되게 구성함을 특징으로 하는 실시간 진동 피드백을 제공하는 압전소자 진동장치.
- 전도성있는 소재의 전극 기판(4)을 두고 압전소자층(6)을 배치한 압전진동체(2)(2a)(2b)에 구동전압을 인가하여 진동을 발생시키는 압전소자 진동장치를 구성하되, 압전소자층(6)에는 인가된 구동전압이 누설되는 것을 방지하기 위한 절연부재(10)를 형성하고, 전극 기판(4)의 하부에는 압전진동체(2)(2a)(2b)를 부착설치하기 위해 절연처리된 고정용 하우징(18)을 구비하여 구성함을 특징으로 하는 실시간 진동 피드백을 제공하는 압전소자 진동장치.
- 제6항에 있어서,고정용 하우징(18)에는 부착된 압전진동체(2)(2a)(2b)의 고정을 견고하게 지지하는 버팀부재(14)를 형성함을 특징으로 하는 실시간 진동 피드백을 제공하는 압전소자 진동장치.
- 전도성있는 소재의 전극 기판(4)을 두고 압전소자층(6)을 배치한 압전진동체(2)(2a)(2b)에 구동전압을 인가하여 진동을 발생시키는 압전소자 진동장치를 구성하되, 압전소자층(6)에는 인가된 구동전압이 누설되는 것을 방지하기 위한 절연부재(10)를 형성하고, 압전진동체(2)(2a)(2b)의 양단에는 압전진동체(2)(2a)(2b)를 부착설치하기 위한 브래킷(22)을 끼움설치하여 구성함을 특징으로 하는 실시간 진동 피드백을 제공하는 압전소자 진동장치.
- 전도성있는 소재의 전극 기판(4)을 두고 압전소자층(6)을 배치한 압전진동체(2)(2a)(2b)에 구동전압을 인가하여 진동을 발생시키는 압전소자 진동장치를 구성하되, 압전소자층(6)에는 인가된 구동전압이 누설되는 것을 방지하기 위한 절연부재(10)를 형성하고, 전극 기판(4)의 양단에는 압전진동체(2)(2a)(2b)의 진동효율을 높이기 위한 탄성부재(32)를 설치하며, 상기 탄성부재(32)의 하부에는 압전진동체(2)(2a)(2b)를 부착설치하기 위한 하부판(36)을 구비하여 구성함을 특징으로 하는 실시간 진동 피드백을 제공하는 압전소자 진동장치.
- 제1항, 제6항, 제8항, 제9항 중 어느 한 항에 있어서,압전진동체(2)(2a)(2b)에는 낙하 충격에 의한 압전진동체(2)(2a)(2b)의 파손을 방지함과 함께 진동에 의한 소음을 줄이기 위한 덮개(34)를 구성함을 특징으로 하는 실시간 진동 피드백을 제공하는 압전소자 진동장치.
- 제1항, 제6항, 제8항, 제9항 중 어느 한 항에 있어서,압전진동체(2)(2a)(2b)에는 낙하 충격에 의한 압전진동체(2)(2a)(2b)의 파손을 방지함과 함께 진동에 의한 소음을 줄이기 위한 방음 케이스(20)를 구성함을 특징으로 하는 실시간 진동 피드백을 제공하는 압전소자 진동장치.
- 제1항, 제6항, 제8항, 제9항 중 어느 한 항에 있어서,압전진동체(2)(2a)(2b)에는 낙하 충격에 의한 압전진동체(2)(2a)(2b)의 파손을 방지함과 함께 진동에 의한 소음을 줄이기 위한 진동모듈케이스(26)를 구성함을 특징으로 하는 실시간 진동 피드백을 제공하는 압전소자 진동장치.
- 전도성있는 소재의 전극 기판(4)을 두고 압전소자층(6)을 배치한 압전진동체(2)(2a)(2b)에 구동전압을 인가하여 진동을 발생시키는 압전소자 진동장치를 구성하되, 압전소자층(6)에는 인가된 구동전압이 누설되는 것을 방지하기 위한 절연부재(10)를 형성하고, 압전진동체(2)(2a)(2b) 전체를 감싸도록 형성하여 진동량 증대와 진동소음 감소 및 압전진동체(2)(2a)(2b)를 부착설치하기 위한 연질의 케이스(38)를 구성함을 특징으로 하는 실시간 진동 피드백을 제공하는 압전소자 진동장치.
- 제13항에 있어서,케이스(38)는 압전진동체(2)(2a)(2b)를 감싸기 위한 상,하부결합부(40)(42)를 구비하고, 하부결합부(42)에는 전극 기판이 끼워지는 안착부(44)를 구성함을 특징으로 하는 실시간 진동 피드백을 제공하는 압전소자 진동장치.
- 제13항에 있어서,케이스(38)는 천연고무, 합성고무, 합성수지 중 어느 하나로 형성함을 특징으로 하는 실시간 진동 피드백을 제공하는 압전소자 진동장치.
- 제1항, 제6항, 제8항, 제9항, 제13항 중 어느 한 항에 있어서,압전진동체(2)(2a)(2b)에는 진동을 증대시키는 무게편(12)을 일측면 및 양측면 중 어느 하나 이상에 부착고정함을 특징으로 하는 실시간 진동 피드백을 제공하는 압전소자 진동장치.
- 제1항, 제6항, 제8항, 제9항, 제13항 중 어느 한 항에 있어서,압전진동체(2)(2a)(2b)는 유니모프형, 바이모프형, 멀티모프형 압전소자 진동장치 중 어느 하나인 것을 특징으로 하는 실시간 진동 피드백을 제공하는 압전소자 진동장치.
- 제1항, 제6항, 제8항, 제9항, 제13항 중 어느 한 항에 있어서,압전진동체(2)(2a)(2b)의 일면 또는 양면 중 어느 하나 이상에는 압전소자층(6)의 파손방지와 무게편(12)의 탈락방지를 위한 보호테이프(24)를 부착하여 구성함을 특징으로 하는 실시간 진동 피드백을 제공하는 압전소자 진동장치.
- 제1항, 제6항, 제8항, 제9항, 제13항 중 어느 한 항에 있어서,압전진동체(2)(2a)(2b) 표면에는 연질의 합성수지 및 합성고무 중 어느 하나를 이용한 코팅층을 형성하여 절연과 진동에 의해 발생하는 음향이 감쇄되게 구성함을 특징으로 하는 실시간 진동 피드백을 제공하는 압전소자 진동장치.
- 제1항, 제6항, 제8항, 제9항, 제13항 중 어느 한 항에 있어서,압전진동체(2)(2a)(2b)는 통화기능을 갖는 휴대단말, 의료기기, 테블릿 PC, 게임기기, 진동 마우스, 진동 리모컨, 진동 키패드, 진동 피드백을 제공하는 휴대단말용 보호케이스를 포함하는 이동단말에 설치하게 구성함을 특징으로 하는 실시간 진동 피드백을 제공하는 압전소자 진동장치.
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US15/545,205 US20180009003A1 (en) | 2015-03-05 | 2016-02-04 | Piezoelectric element vibration apparatus that provides real-time vibration feedback |
CN201690000452.2U CN208521966U (zh) | 2014-04-29 | 2016-02-04 | 提供实时震动反馈的压电元件震动装置 |
JP2017600094U JP3215078U (ja) | 2014-04-29 | 2016-02-04 | リアルタイム振動フィードバックを提供する圧電素子振動装置 |
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USD857020S1 (en) * | 2016-05-25 | 2019-08-20 | Tdk Corporation | Piezoelectric element |
US11150731B2 (en) * | 2018-09-28 | 2021-10-19 | Apple Inc. | Multi-modal haptic feedback for an electronic device using a single haptic actuator |
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CN110568960A (zh) * | 2019-09-04 | 2019-12-13 | 昆山龙朋精密电子有限公司 | 一种压电触控反馈装置 |
CN113258822A (zh) * | 2021-05-17 | 2021-08-13 | 维沃移动通信有限公司 | 振动马达及电子设备 |
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