45 results about "Electrovibration" patented technology

The present invention relates to the technical field of electronic atomization, and in particular, to a conductive vibration module, an atomization cartridge, and an aroma diffuser. An atomization opening is formed at the upper end of a mounting base of the conductive vibration module of the present invention. An open slot and a heat dissipation opening are respectively formed at two sides of the mounting base. An oil guide component has a first end and a second end, the first end is connected to a liquid storage cavity, and the second end is inserted into a mounting slot from the open slot. An oscillation piece is provided in the mounting slot and is located at the lower end of the oil guide component. A first electrode sheet and a second electrode sheet are respectively provided at the upper end and the lower end of the oscillation piece and are pressed against and connected to the oscillation piece. Such design simplifies the structure and makes installation easier. In addition, because the first electrode sheet and the second electrode sheet are always pressed against and fixedly connected to the oscillation piece, the problem of structural looseness after long-time use is avoided. The mounting slot is communicated with an air inlet cavity via the heat dissipation opening, so that rapid heat dissipation is achieved by means of flowing of gas. Therefore, the vibration frequency of the conductive vibration module of the present invention can be designed to be higher, so as to achieve a better vibration atomization effect.

A piezoelectric vibration element includes a piezoelectric piece having a main surface; an excitation electrode disposed on the main surface of the piezoelectric piece; and a connection electrode disposed on the main surface of the piezoelectric piece and electrically connected to the excitation electrode, wherein when the main surface of the piezoelectric piece is viewed in a plan, the piezoelectric piece has a through-hole in an area between the excitation electrode and the connection electrode, and wherein an internal wall of the through-hole located closer to the excitation electrode has at least four slopes.

The embodiment of the invention provides a display module and electronic equipment, relates to the technical field of intelligent wearing, and is used for solving the problem that the size of the electronic equipment is relatively large. In the display module, a supporting sheet is arranged on the back surface of a display screen, and the supporting sheet is connected with the display screen. The piezoelectric vibration piece is connected with the surface, away from the display screen, of the supporting piece. The vertical projection of the piezoelectric vibration piece on the back face of the display screen is located in the vertical projection range of the supporting piece on the back face of the display screen. And the piezoelectric vibrating reed drives the display screen to vibrate to realize screen sounding, so that the functions of sounding devices such as a loudspeaker, a buzzer and a sonar module can be realized. Sound production devices such as a loudspeaker, a buzzer and a sonar module do not need to be arranged in the electronic equipment, and the internal space of the electronic equipment can be saved.

A piezoelectric device is provided with: a package having a recess in which an electrode pad is located; and a piezoelectric vibration element bonded to the electrode pad by a bonding member. The piezoelectric vibration element has a substantially rectangular shape in plan view, and has a vibration portion and a thick portion that is arranged in at least an X-direction along the longitudinal direction of the piezoelectric vibration element with respect to the vibration portion and that is thicker than the vibration portion. The bonding member bonds the thick portion and the electrode pad at least at two locations. The center position of the bonding member in plan view is located in the X direction in a range of 0.21-0.61 times the first length of the piezoelectric vibration element in the X direction from the side surface on the thick portion side.

A piezoelectric vibrator having a piezoelectric vibration element that includes a piezoelectric piece and a pair of electrodes that face each other with the piezoelectric piece interposed therebetween; a holder that accommodates the piezoelectric vibration element; a resin layer covering at least one electrode of the pair of electrodes; and a water-repellent layer, which has a lower moisture permeability than the resin layer, between the electrode and the resin layer.

The present invention provides a piezoelectric vibrator and a piezoelectric vibrator assembly. [Solution] The piezoelectric vibrator includes a piezoelectric body and an amplifying unit supported and fixed on at least one of the opposing sides of the piezoelectric body, the piezoelectric body is made of a material having a piezoelectric effect in a single layer or multiple layers, the amplifying unit is a flat structure having the same shape as the piezoelectric body and composed of an elastic reinforcing element, the elastic reinforcing element is a metal sheet, the piezoelectric body expands or contracts along a first direction parallel to the plane in which the piezoelectric body is located when receiving an external voltage, and the amplifying unit contracts or expands along a second direction, the first direction and the second direction being perpendicular to each other. Compared with the related art, the piezoelectric vibrator and piezoelectric vibrator assembly of the present invention have a small volume, a fast response, an adjustable resonance frequency, a wide operating frequency range, and a high energy conversion efficiency.

The utility model discloses a mechanical tool for assembling a piezoelectric vibration sensor, which comprises an H-shaped metal base, a pre-tightening screw, a tray, a positioning module, an upper top plate, a first positioning screw, a second positioning screw and a third positioning screw, a sensor assembling groove is formed in the middle of the positioning module, the bottom of the groove is in threaded connection with a pre-tightening screw, and the upper top plate is arranged at the top of the groove and provided with a middle positioning hole, a first positioning screw, a second positioning screw and a third positioning screw, the positioning module is provided with a first through hole corresponding to the first positioning screw, the tray is provided with a second through hole corresponding to the second positioning screw, and the upper top plate is fixedly connected with the H-shaped metal base through a third positioning screw. According to the utility model, positioning and pre-tightening functions can be realized, accurate positions of all parts of the sensor during assembling and working are ensured, and the applied pre-tightening force is uniform.

The present invention provides a piezoelectric vibrating piece that can suppress the occurrence of a short circuit between excitation electrodes in the groin area between a pair of vibrating arms. [Solution] The piezoelectric vibrating piece 3 comprises a piezoelectric plate 30 having a pair of vibrating arms 31 and 32 extending from a base 35 in the same direction, and a first excitation electrode 41 and a second excitation electrode 42 provided on each of the pair of vibrating arms 31 and 32 to generate an electric field on each of the pair of vibrating arms 31 and 32. The front surface 35a of the base 35 is located between the pair of vibrating arms 31 and 32 and has a crotch 50 on which the first excitation electrode 41 and the second excitation electrode 42 are provided. The crotch 50 has a residue region 51 defined as the area where etching residue 55 is formed when viewed from the thickness direction of the piezoelectric plate 30, and a non-residue region 52 defined as the area where etching residue 55 is not formed when viewed from the thickness direction of the piezoelectric plate 30. The front surface 35a of the base 35 is inclined with respect to the thickness direction of the piezoelectric plate 30 in the non-residue region 52.

The invention provides a vibration actuator capable of obtaining a large vibration amplitude of a transparent plate. And a vibration actuator (40A) that imparts vibration to a transparent plate (3) that covers the opening of the housing (7A) and has piezoelectric vibrators (4) that generate telescopic vibration, the piezoelectric vibrators (4) are arranged so as to be dispersed along the edge portion of the transparent plate (3), one end (41) of each piezoelectric vibrator (4) in the telescopic direction is a fixed end, the end surface of each piezoelectric vibrator (4) is fixed to the transparent plate (3), and the other end (42) of each piezoelectric vibrator (4) in the telescopic direction is a free end.

The inspection terminals for testing the characteristics of the piezoelectric vibration device are exposed on the side end face of the molded resin at the boundary between the insulating substrate and the molded resin, allowing for easy inspection of the piezoelectric vibrator without causing a short circuit at the inspection terminals. [Solution] The piezoelectric vibrator-side conductor plates 8a and 8b are positioned so as not to overlap with the external connection terminals on the lower surface of the insulating substrate 2. The piezoelectric vibrator-side conductor plates 8a and 8b are connected to the piezoelectric vibrator 3 via a group of wiring patterns on the upper surface 2a of the insulating substrate 2. The side end faces of the piezoelectric vibrator-side conductor plates 8a and 8b are exposed to the outside from the boundary between the insulating substrate 2 and the molded resin 5. This allows the characteristics of the piezoelectric vibrator 3 to be tested using the exposed piezoelectric vibrator-side conductor plates 8a and 8b.

To provide a piezoelectric vibration element in which an oscillation frequency is accurately adjusted by holding a mass balance of a vibration part in a thickness direction, and a stable oscillation frequency can be obtained, and a manufacturing method thereof.SOLUTION: A piezoelectric vibration element 1 comprises a support part 30; and a vibration part 20 which continuously extends on the support part 30, and on which an excitation electrode 50 is formed, where the vibration part 20 includes a first principal plane 11, a second principal plane 12 opposing the first principal plane 11, a base end part 16 on the support part 30 side, and a tip part 40 on a tip side, and the tip part 40 includes: a tip inclined surface 45 which connects the first principal plane 11 and the second principal plane 12, and inclines so as to develop on the second principal plane 12 side toward the tip side; a first corner part 41 having an obtuse angle which is formed by the tip inclined surface 45 and the first principal plane 11; and a second corner part 42 having an acute angle formed by the tip inclined surface 45 and the second principal plane 12, and has a weight part 65, which adjusts an oscillation frequency of the vibration part 20 to a predetermined target frequency, on the first corner part 41 side in the tip part 40.SELECTED DRAWING: Figure 2

The present invention discloses an ultrasonic tactile feedback module, which includes a flexible circuit board, piezoelectric ceramic sheets, a substrate body, and a glass panel; a plurality of piezoelectric ceramic sheets are fixed between the flexible circuit board and the substrate body; the substrate body is fixed on the glass panel, and the substrate body includes a substrate bonding surface, substrate arms, and a substrate fulcrum surface; the substrate fulcrum surface is fixed on the glass panel; when the plurality of piezoelectric ceramic sheets are energized and vibrate, the substrate body converges the small vibrations of the piezoelectric ceramic sheets into a large vibration of the substrate bonding surface through the substrate bonding surface, and the large vibration of the substrate bonding surface is transmitted to the substrate fulcrum surface through the substrate arms, and the large vibration of the substrate fulcrum surface acts on the glass panel. The present invention amplifies the vibration force of the piezoelectric ceramic sheets acting on the glass panel through the substrate body connecting the piezoelectric ceramic sheets and the glass panel, increases the sense of shock acting on the glass panel, so as to improve the accuracy of tactile feedback when the screen is relatively thick.

To provide a piezoelectric vibration device and a method for manufacturing the same that improve the visibility of the laser-engraved portion of a molded portion whose main component is filler particles.SOLUTION: A piezoelectric vibration device 1 includes a substrate 11, a vibrator 2 mounted on the substrate 11, an integrated circuit element 10 mounted on the substrate 11, and a molded portion 12 made of a mixture of at least a plurality of spherical filler particles 12a and a thermosetting resin 12b, and covering at least the vibrator 2. The molded portion 12 has a plurality of filler particles 12a, including filler particles 12a of different particle sizes, bonded together by the thermosetting resin 12b, and has a groove portion 13 formed on its surface by irradiation with a laser L. The groove portion 13 has a groove width W that is at least 0.9 times the particle size of the largest filler particle 12a among the filler particles 12a contained in the molded portion 12.SELECTED DRAWING: Figure 6

The application discloses a kind of intelligent rings, it is related to the field of smart wear technology, wherein, intelligent ring includes ring shell, main control component and piezoelectric vibration component, piezoelectric vibration component includes substrate, piezoelectric ceramic sheet and vibrator, substrate includes the fixed area and vibration area connected, fixed area is used to connect with ring shell, piezoelectric ceramic sheet and vibrator are installed in vibration area, piezoelectric ceramic sheet is used to drive vibrator vibration to knock ring shell;Main control component is installed in ring shell, and is electrically connected with piezoelectric vibration component.The technical scheme provided by the application realizes the vibration feedback of intelligent ring simultaneously, and is conducive to the miniaturization of intelligent ring.

The invention discloses an evaporator frost prevention device and method, refrigeration equipment, electronic equipment and a storage medium. The device comprises an evaporator support and fins, the evaporator support comprises an upper protective plate, an evaporator right side plate, a bottom plate and an evaporator left side plate which are sequentially connected, and the fins are arranged at the bottom of the evaporator support; a piezoelectric vibration piece is arranged in an evaporator support, vibration of the piezoelectric vibration piece is transmitted to a fin through the evaporator support, the outer surface of the fin is provided with a nanometer micro-protrusion array, the outer surface of the fin is coated with an electrochromic layer, and the fin is connected with an electric field pulse generating device. And the electric field pulse generating device generates an electric pulse signal to control the nano micro-bulge array to generate local eddy current, so that the electrochromic layer forms a continuous water film, and frosting of the evaporator is inhibited. Through linkage of the nanometer micro-bulge array structure, the electric field pulse, the piezoelectric vibration, the electrochromic layer and the frequency converter, a frosting physical process is blocked in a short time, and the frost prevention efficiency is remarkably improved.

The present invention provides a piezoelectric vibrator, the frequency precision of which is adjustable after encapsulation.　A piezoelectric vibrator (1) comprises: a piezoelectric vibration element (10) having a vibrating part (110) and excitation electrodes (14a, 14b) respectively provided on upper and lower surfaces of the vibrating part (110); an upper substrate layer (20) provided on the upper-surface side of the piezoelectric vibration element (10); a lower substrate layer (30) provided on the lower-surface side of the piezoelectric vibration element (10); first resin bonding materials (X1, X2) provided between the upper substrate layer (20) and the lower substrate layer (30), and along an outer periphery in a plan view; and a first protective film (F1) having light-shielding properties against irradiating light (R) of a prescribed wavelength for cleaning the excitation electrodes (14a, 14b), said film being provided on the upper substrate layer (20) and / or the lower substrate layer (30) in an area overlapping the first resin bonding materials (X1, X2) in a plan view.

The present invention relates to a pneumatic-assisted piezoelectric vibration direct writing airbrush device and its application, belonging to the field of printed electronics technology. The device includes a barrel body, a piezoelectric nozzle module, a pneumatic joint, a hose, a three-way solenoid valve, a pressure regulator, an air compressor, a feed port, a power amplifier, and a signal generator. The bottom of the barrel body is connected to the piezoelectric nozzle module, and the piezoelectric nozzle module is connected to the power amplifier and the signal generator; the feed port is provided on the barrel body; the top of the barrel body is connected to the pneumatic joint, and the pneumatic joint is connected to one end of the three-way solenoid valve by the hose, and the other two ends of the three-way solenoid valve are respectively connected to the pressure regulator and communicate with the atmospheric environment, and the pressure regulator is connected to the air compressor. Through the setting of pneumatic-assisted piezoelectric vibration, while making the jet converge, it can have a greater range under the increase of pressure, thereby increasing the available working distance from the sample surface, and can also be applied to the jet of high-viscosity liquids, with a wider scope of application.

This application relates to the field of acoustoelectronics, the field of audio devices, and the field of multimedia devices, and in particular, to noise reduction in a mobile application scenario, for example, a hearing aid, a headset, and smart glasses, and is responsible for conduction and noise reduction of various sounds. This application describes a piezoelectric vibration sensing unit and an electronic device. The piezoelectric vibration sensing unit includes a base, a plurality of cantilevers, a central film, a connection part, and a mass block. A piezoelectric structure of the piezoelectric vibration sensing unit is based on a VPU design of strong coupling between unequal-length piezoelectric cantilevers and a film. The design aims to overcome disadvantages of a gradually decreasing response at a low frequency and insufficient bandwidth.

The application discloses an evaporator anti-frost device and method, and refrigeration equipment, electronic equipment and storage medium. The device comprises an evaporator support and a fin. The evaporator support is sequentially connected with an upper guard plate, an evaporator right side plate, a bottom plate and an evaporator left side plate. The fin is arranged at the bottom of the evaporator support. A piezoelectric vibration plate is arranged in the evaporator support. The piezoelectric vibration plate vibrates and transmits to the fin through the evaporator support. The outer surface of the fin is provided with a nano micro-protrusion array. The outer surface of the fin is coated with an electrochromic layer. The fin is connected with an electric field pulse generating device. The electric field pulse generating device generates an electric pulse signal to control the nano micro-protrusion array to generate a local eddy current, and makes the electrochromic layer form a continuous water film to inhibit the evaporator from frosting. The application realizes the blocking of the frosting physical process in a short time through the nano micro-protrusion array structure, electric field pulse, piezoelectric vibration, electrochromic layer and frequency converter linkage, and significantly improves the anti-frost efficiency.

To ensure mounting accuracy of piezoelectric vibrators while accommodating the miniaturization and low-profile design of electronic devices. [Solution] The device comprises a rectangular base made of quartz or glass in plan view, two mounting pads positioned on the upper surface of the base which transmit electrical signals to a piezoelectric vibrator and mount the piezoelectric vibrator, and a measuring pad positioned around the two mounting pads which reflects laser light.

The present invention provides a piezoelectric vibrating piece having an electrode structure that is superior to conventional designs in reducing foreign matter adhesion. [Solution] The excitation electrode 13 as an electrode structure comprises a base film 13a and a main electrode film 13b formed on the base film, and further comprises a surface film 13c on the main electrode film, which is made of a material with a smaller diffusion coefficient than the main electrode film and reduces the mutual diffusion between the main electrode film and metallic foreign matter. The main electrode film is a thin film of gold or silver, and the surface film is selected from a thin film of tungsten, a thin film of tantalum, or a thin film of molybdenum.

Provided is a vibration device which includes a stack-type vibration generating part (110). The vibration generating part comprises a plurality of vibration layers (111) of piezoelectric material arranged between a plurality of electrode layers (113), a first connection member (118A) electrically connected to a first group of the electrode layers, and a second connection member (118B) electrically connected to a second group of the electrode layers. Each electrode layer has a shape which differs from a shape the vibration layers, and a size which is smaller than a size of the vibration layers, particularly having a main electrode part (113a) and several protruding sub-electrodes (113b). The vibration device may be incorporated in an electronic apparatus having a passive vibration member such as a display panel to generate a sound, for example.

The invention provides a piezoelectric vibration device and a preparation method thereof, and belongs to the technical field of piezoelectric crystal devices.The piezoelectric vibration device comprises a cover plate, a bottom plate and a functional layer, and the functional layer is located between the cover plate and the bottom plate; on the bonding surface of the functional layer and the cover plate, the bonding ring of the functional layer is bonded with the bonding ring of the cover plate, and on the bonding surface of the functional layer and the bottom plate, the bonding ring of the functional layer is bonded with the bonding ring of the bottom plate; the widths, perpendicular to the extension direction of the bonding rings, of the two bonding rings corresponding to at least one bonding face are different. Through the design of the width difference of the bonding ring, the problems that in the prior art, system-level packaging cannot be achieved, and the stability of the piezoelectric vibration device is affected by pollution and mechanical stress are solved, wafer-level packaging of the piezoelectric vibration device is achieved, and meanwhile the sealing performance of packaging of the piezoelectric vibration device is improved.

The invention provides a vibration actuator capable of obtaining a large vibration amplitude of a transparent plate. And a vibration actuator (40A) that imparts vibration to a transparent plate (3) that covers the opening of the housing (7), the vibration actuator (40A) having piezoelectric vibrators (4) that generate telescopic vibration, and a rubber plate (8A) that is fixed to the edge of the transparent plate (3), the piezoelectric vibrators (4) being arranged so as to be scattered along the edge of the transparent plate (3), and the rubber plate (8A) being fixed to the edge of the transparent plate (3). The end surface of one end (41) of the piezoelectric vibrator (4) in the direction of expansion and contraction is fixed to the transparent plate (3) via a rubber plate (8A), and the end surface of the other end (42) of the piezoelectric vibrator (4) in the direction of expansion and contraction is fixed to the surface of the frame part (7) facing the transparent plate (3).

The invention provides a method for manufacturing a piezoelectric vibration device using a sheet-shaped substrate, and the method can independently measure the characteristics of each piezoelectric vibration piece. In the manufacturing method, a plurality of piezoelectric vibration devices are manufactured using a sheet-shaped substrate (1) in which a plurality of bases (10) in which piezoelectric vibration pieces are housed are connected in a matrix and integrally molded, external connection terminals (61-64) including a pair of first and second external connection terminals (61, 62) for the piezoelectric vibration pieces are formed on the outer bottom surfaces of the bases (10), and the external connection terminals (61-64) are formed on the outer bottom surfaces of the sheet-shaped substrate (1). A first external connection terminal (61) of the base (10) and a third external connection terminal (63) of the base (10) on the right side adjacent to the base (10) are electrically connected, and the manufacturing method includes a cutting step of cutting the electrical connection between the first external connection terminal (61) and the third external connection terminal (63) using an energy beam in the sheet-shaped substrate (1).

The present invention includes: first and second excitation electrodes formed on two main surfaces of a piezoelectric substrate; and first and second mounting terminals respectively connected to the first and second excitation electrodes. The first and second mounting terminals have: a mounting metal film including a solder resist metal film formed on the piezoelectric substrate; and excitation metal films constituting the first and second excitation electrodes formed on the mounting metal film so as to be respectively connected to the first and second excitation electrodes.

A piezoelectric pump and an electronic device are provided. The piezoelectric pump is mounted on the electronic device, and includes a housing, an inlet structure, and an outlet structure, and a piezoelectric vibration mechanism. The housing includes first openings and second openings. The inlet structure is disposed on the inner surface of the housing, and includes an inlet body having inlet holes positioned correspondingly to the first openings; and first films connected to the inlet body, and in the inlet holes. The outlet structure is disposed on the outer surface of the housing, and includes outlet body having outlet holes positioned correspondingly to the second openings; and second films connected to the outlet body, and in the outlet holes. The piezoelectric vibration mechanism is in the housing.

To provide a piezoelectric vibration piece capable of suppressing occurrence of a failure caused by discharge between electrodes, and a piezoelectric vibrator using the same.SOLUTION: The crystal vibration piece 2 includes a crystal piece 6 having a pair of main surfaces 61, an excitation electrode 7 provided on the main surface 61, and an extraction electrode 8 extracted from the excitation electrode 7. The main surface 61 includes a first main-surface 61a portion and a second main-surface 61a portion facing the first main-surface 61b portion, the excitation electrodes 7 include a first excitation-electrode 61a portion provided on the first main-surface 7a portion and a second excitation-electrode 61b portion provided on the second main-surface 7b portion, and the lead-out electrodes 8 include a first lead-out electrodes 7a portion led out from the first excitation-electrode 8a portion and a second lead-out electrodes portion led out from the second excitation-electrode portion. 7b 8b. The crystal piece 6 includes a creepage distance expansion portion 62 that is a portion for expanding the creepage distance between the first excitation electrodes 7a and the second lead-out electrodes 8b and / or the creepage distance between the second excitation electrodes 7b and the first lead-out electrodes 8a.SELECTED DRAWING: Figure 1A

The present invention relates to a device and method that generates a tactile presentation, which indicates time on a mobile device. The mobile device includes a touch screen, a processor, and the functionality to be activated to electrovibrate in at least one portion of the touch screen. The processor receives electrical signals specifying and displaying a current time on the touch screen. The touch screen generates electrovibrations that vary in response to the time to provide the tactile presentation of the time on the touch screen. The haptic feedback is configured to emulate shapes such as a numeric character or other discernable shape in a location on a portion of the touch screen, so that a user by contacting the touch screen can sense the numeric character or shape generated by the haptic feedback and determine the time elapsed within an hour without having to view the touch screen.