Chung Yuan Christian University

Sheuan-Perng Lin

Yung Ting

Chih-Hsuan Yu

Suprapto

Chien-Hsiang Wu

Jia-Ci Chen

Jun-Hong Lin

Hariyanto Gunawan

Yuan-Yu Chou

Chia-An Wei

Hsin-Yuan Chen

Zih-Jie Lin

Chih-hsuan Yu

Reno Pangestu

Kai-Chao Chang

Yu-Chun Hung

Chien-Ping Wang

Jun-Hao Chen

Hao-Ping Lin

Rahmad-Aldori Yopan

Chien-Wen Wang

Yu-Heng Lin

A micro blower includes a base metal sheet, a flowing channel layer, a sandwich metal sheet, a capping layer and two first piezoelectric vibrators. The flowing channel layer is connected to the top of the base metal sheet and includes a first chamber, a second chamber, an inlet channel, a linking channel and an outlet channel. The inlet channel links to the first chamber and includes an inlet channel inlet size and an inlet channel outlet size, and the inlet channel inlet size is smaller than the inlet channel outlet size. The linking channel links to the first chamber and the second chamber and includes a linking channel inlet size and a linking channel outlet size, and the linking channel inlet size is smaller than the linking channel outlet size.

Micro blower

A piezoelectric vibration module has a first soft circuit board and a plurality of piezoelectric units. The first soft circuit board includes a plurality of cutting areas. Two adjacent cutting areas are spaced with a cut through groove. Each piezoelectric unit is respectively configured below each cutting area.

Piezoelectric vibration module and haptic feedback module

An intelligent energy harvesting device, a voltage signal application system, and an energy management module thereof are disclosed. The intelligent energy harvesting device is used to transfer a signal to an application device. The intelligent energy harvesting device includes a power generation module, a battery and an energy management module. The power generation module generates a first voltage signal. The battery generates a second voltage signal. The energy management module is electrically connected to the power generation module and the battery for enabling the first voltage signal output from the power generation module to be used as a power signal to provide the application device, or enabling the first voltage signal output from the power generation module and the second voltage signal output from the battery collectively serves as the power signal to provide the application device.

Intelligent energy harvesting device, voltage signal application system and energy management module thereof

A piezoelectric energy hunting device and a voltage signal application system thereof are disclosed. The piezoelectric energy hunting device includes a plurality of curved piezoelectric elements, a plurality of rigid foams, and a flexible foam structure. The plurality of curved piezoelectric elements are arranged side by side with one another, wherein each curved piezoelectric element is attached to one of the rigid foams. The flexible foam structure includes a top foam and a bottom foam covering the outer surface of the plurality of curved piezoelectric elements and the plurality of rigid foams; when the flexible foam structure is compressed, the plurality of curved piezoelectric elements are simultaneously deformed, thereby generating a voltage signal. When the flexible foam structure is not compressed, the flexible foam structure and the plurality of rigid foams provide an elastic force to restore the plurality of curved piezoelectric elements.

Piezoelectric energy hunting device with lightweight design and voltage signal application system thereof

A haptic feedback module with a touch panel and a piezoelectric haptic feedback module is disclosed. The piezoelectric haptic feedback module contacts with the touch panel and has a first soft circuit board and a plurality of piezoelectric units. The first soft circuit board has a plurality of first electrode areas and each first electrode area has a first length. Each of the piezoelectric units is respectively configured below each of the first electrode areas. Each of the piezoelectric units has a second length, wherein the first length is 10% to 20% of the second length.

Haptic feedback module

A miniature cooling system includes a base metal sheet, a flow channel layer, a piezoelectrically actuated metal sheet, a piezoelectric boundary compression layer and two piezoelectric ceramic vibrators. The flow channel layer is located on the base metal sheet and includes a first chamber, a second chamber, an inlet channel, a linking channel and an outlet channel. The inlet channel links the outside environment to the first chamber. The linking channel links the first chamber and the second chamber. The outlet channel links the second chamber to the outside environment. The piezoelectrically actuated metal sheet is located on the flow channel layer. The piezoelectric boundary compression layer is located on the piezoelectrically actuated metal sheet. The piezoelectric boundary compression layer includes two containing areas, and the two containing areas are respectively located above the first chamber and the second chamber.

Miniature cooling system

A piezoelectric system for ultrasonic thermotherapy and electrotherapy comprises a first piezoelectric element, a proof mass, a second piezoelectric element and an output unit. The proof mass is disposed between the first piezoelectric element and the second piezoelectric element. The first piezoelectric element is powered by a power source to generate oscillation, which is transferred by the proof mass to the second piezoelectric element so as to cause the second piezoelectric element to move and generate power. The output unit comprises a connecting surface and a tip surface. The output unit is electronically connected with the second piezoelectric element, wherein the connecting surface is connected with the first piezoelectric element and the tip surface is formed in a tapered shape. The oscillation from the first piezoelectric element and the power generated by the second piezoelectric element are output through the tip surface.

Piezoelectric system for ultrasonic thermotherapy and electrotherapy

A piezoelectric sensing module, a piezoelectric sensing module detecting method, and a piezoelectric sensing detection system thereof are disclosed. The piezoelectric sensing module is used for an operating tool. The piezoelectric sensing module includes a piezoelectric sensing film, and the piezoelectric sensing film includes at least a first to a sixth electrodes; wherein the first electrode is disposed between the third and the fourth electrodes, the second electrode is disposed between the fifth and the sixth electrodes; wherein the first and the second electrodes, the third and the fifth electrodes, and the fourth and the sixth electrodes are separated by a certain distance respectively, and a first angle between the first and the second electrodes, a second angle between the third and the fifth electrodes, and a third angle between the fourth and the sixth electrodes each have an included angle of 90 degrees.

Piezoelectric sensing module, piezoelectric sensing module detecting method, and piezoelectric sensing detection system thereof

A linear piezoelectric motor and a slider drive system thereof are disclosed. The linear piezoelectric motor includes a piezoelectric ceramic element and a base structure. The piezoelectric ceramic element includes a first region, a second region and an interval region located between the first and the second region, wherein the first and the second region may be formed by a first and a second power signal supplied by a power supply to form a first and a second standing wave, respectively. The interval region is a quarter wavelengths. The first and the second standing wave have a phase difference so as to form a traveling wave. The base structure disposes the piezoelectric ceramic element and has a pectinate structure to increase the amplitude of the first and the second standing wave, thereby enabling the piezoelectric motor to be driven.

Linear piezoelectric motor and slider drive system thereof

A single hybrid motor of the present invention has a rotor, a first stator, a first torsional vibrator, a first longitudinal vibrator, a first template, and a first connecting element. One end of the first connecting element is connected with the rotor, the first torsional vibrator, the first longitudinal vibrator, the first template, the first elastic block and the second elastic block. The first elastic block is disposed between the rotor and the first torsional vibrator. The second elastic block is disposed between the first template and the first longitudinal vibrator. Adjusting the length of the first elastic block or/and the second elastic block allows the first torsional vibrator and the first longitudinal vibrator of the single hybrid motor to obtain a plurality of sets of resonance frequencies within a degeneracy range.

Single hybrid motor, dual hybrid motor and hybrid motor assembly

The piezoelectric actuator of the present invention has at least one ceramic component. The ceramic component has an output surface and two driving surfaces. The ceramic component has a height and the output surface is rectangular in shape, wherein the length of the short axis side of the output surface is shorter than the height. Therefore, when a pulse wave input voltage is applied on the driving surfaces, the output surface generates an elliptical motion.

Piezoelectric actuator, ceramic component polarizing method and piezoelectric motor system

A triple-axial force measurement sensor is disclosed in the invention. The triple-axial force measurement sensor includes a first sensing unit and a second sensing unit. The first sensing unit includes a first electrode, a plurality of second electrodes and a plurality of third electrodes. The first electrode includes an electrode main body, a plurality of first extension columns, a plurality of second extension columns, a plurality of first electrode columns and a plurality of second electrode columns. The first extension columns and the second extension columns are connected to the electrode main body. The first electrode columns are connected to the first extension columns. The second electrode columns are connected to the second extension columns.

Electronic device and triple-axial force measurement sensor thereof

A piezoelectric energy harvester has a box, a plurality of first arc-shaped metal stands and a plurality of arc-shaped piezoelectric elements. The box has an upper portion, a connection base, a buffer element and a lower portion. The connection base situates between the upper portion and the lower portion. The upper portion movably connects with the lower portion through the buffer element. The plurality of first arc-shaped metal stands situated on a side of the connection base in the box. Each of the arc-shaped piezoelectric elements locates on each of the first arc-shaped metal stands. When an external force applied on the box, the plurality of first arc-shaped metal stands deforms due to the compression from the upper portion and consequently causes the deformation of the arc-shaped piezoelectric elements for generating electricity accordingly.

Piezoelectric energy harvester

A multi-axis piezoelectric stress-sensing device, a multi-axis piezoelectric stress-sensing device polarization method, and a piezoelectric sensing detection system thereof are disclosed. The piezoelectric sensing detection system is used for a machining tool. The multi-axis piezoelectric stress-sensing device includes a piezoelectric sensing film, a first electrode, a second electrode, a third electrode, and a fourth electrode. The piezoelectric sensing film has four corners. The first electrode, the second electrode, the third electrode and the fourth electrode are located at the four corners of the piezoelectric sensing film, and at least one electrode is used to polarize another electrode according to at least one polarization direction.

Multi-axis piezoelectric stress-sensing device, multi-axis piezoelectric stress-sensing device polarization method, and piezoelectric sensing detection system thereof

A piezoelectric sensing element includes a ring type piezoelectric device, two ceramic structural adhesives, two electrode sheets, two structural adhesives, a ring type sheet, and a disk-shaped cylindrical ceramic sheet. The two ceramic structural adhesives, respectively located above and below the ring type piezoelectric device. The two electrode sheets, respectively located above and below the two ceramic structural adhesives. The two structural adhesives, respectively located above and below the two electrode sheets. The ring type sheet, located above or below one of the two structural adhesives. The disk-shaped cylindrical ceramic sheet, located below or above another of the two structural adhesives.

Growing community of inventors

Chung Li, Taiwan

Sheuan-Perng Lin