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公开(公告)号:US10288192B2
公开(公告)日:2019-05-14
申请号:US15640720
申请日:2017-07-03
Applicant: Microjet Technology Co., Ltd.
Inventor: Yung-Lung Han , Chi-Feng Huang , Shih-Chang Chen , Jia-Yu Liao , Hung-Hsin Liao , Che-Wei Huang , Shou-Hung Chen
Abstract: A piezoelectric actuator includes a square suspension plate, an outer frame, plural brackets and a square piezoelectric ceramic plate. The outer frame is arranged around the suspension plate. A second surface of the outer frame and a second surface of the suspension plate are coplanar with each other. The plural brackets are perpendicularly connected between the suspension plate and the outer frame for elastically supporting the suspension plate. Each bracket has a length in a range between 1.11 mm and 1.21 mm and a width in a range between 0.2 mm and 0.6 mm. A length of the piezoelectric ceramic plate is not larger than a length of the suspension plate. The piezoelectric ceramic plate is attached on a first surface of the suspension plate.
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公开(公告)号:US10218829B2
公开(公告)日:2019-02-26
申请号:US15926071
申请日:2018-03-20
Applicant: Microjet Technology Co., Ltd.
Inventor: Hao-Jan Mou , Ta-Wei Hsueh , Shih-Chang Chen , Jia-Yu Liao , Wei-Ming Lee , Yung-Lung Han
IPC: G06F1/16 , H04M1/02 , F15B15/10 , F15B11/064
Abstract: A portable electronic device includes a casing, a flexible display panel, a cushion, an inflatable pad, a gas transportation device and a sensing unit. The flexible display panel is embedded in the casing and including a movable region. The cushion is attached on a bottom surface of the movable region. The inflatable pad is attached on a bottom surface of the flexible display panel and covers the cushion. The gas transportation device is in communication with the inflatable pad and electrically connected with the sensing unit. When the sensing unit is touched by a user, a first driving signal is transmitted from the sensing unit to the gas transportation device, in response to which the gas transportation device inflates the inflatable pad again to raise the cushion, so that the movable region corresponding to the cushion is raised.
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公开(公告)号:US10180199B2
公开(公告)日:2019-01-15
申请号:US15859974
申请日:2018-01-02
Applicant: Microjet Technology Co., Ltd.
Inventor: Che-Wei Huang , Shih-Chang Chen , Jia-Yu Liao , Yung-Lung Han , Chi-Feng Huang
Abstract: A fluid control device includes a piezoelectric actuator, a housing and a glue body. The piezoelectric actuator includes a suspension plate, an outer frame, a bracket and a piezoelectric element. The housing includes an outlet plate and a base. The outlet plate accommodates the piezoelectric actuator and the base includes an inlet plate and a resonance plate. The glue body is arranged between the outer frame and the resonance plate to maintain a gap formed therebetween. The suspension plate is made of a material having a linear expansion coefficient less than a linear expansion coefficient of the piezoelectric element. The suspension plate has a specified hardness to maintain a curved shape after being heated, and the linear expansion coefficient of the suspension plate is different from a linear expansion coefficient of the resonance plate, so that an effective deformation displacement between the suspension plate and the resonance plate is obtained.
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公开(公告)号:US20190011949A1
公开(公告)日:2019-01-10
申请号:US16012434
申请日:2018-06-19
Applicant: Microjet Technology Co., Ltd.
Inventor: Hao-Jan Mou , Ta-Wei Hsueh , Shih-Chang Chen , Li-Pang Mo , Chi-Feng Huang , Yung-Lung Han , Wei-Ming Lee
Abstract: An electronic device includes a casing, a speaker enclosure and an actuating and sensing module. The casing has an opening. The speaker enclosure is disposed within the casing to enclose a speaker. The speaker enclosure is in communication with the opening of the casing. The actuating and sensing module is disposed within the speaker enclosure. The actuating and sensing module comprises a fluid transportation device and a sensor. The fluid transportation device is driven to transport a fluid from outside the casing into the speaker enclosure through the opening of the casing to make the fluid sensed by the sensor.
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公开(公告)号:US20180190618A1
公开(公告)日:2018-07-05
申请号:US15860349
申请日:2018-01-02
Applicant: Microjet Technology Co., Ltd.
Inventor: Li-Pang Mo , Shih-Chang Chen , Chi-Feng Huang , Yung-Lung Han
IPC: H01L25/065 , H01L23/46 , F28F13/06
Abstract: A three-dimensional integrated circuit cooling system is provided for removing heat from a three-dimensional integrated circuit. Plural fluid microchannels are formed among plural middle chip layers and a main chip layer of the three-dimensional integrated circuit. The three-dimensional integrated circuit cooling system comprises a base and a fluid pump. The base has an introduction opening, a discharge opening and a fluid passage. The fluid pump is fixed on the base and seals the edge of the introduction opening. When the fluid pump is enabled, an ambient fluid is driven by the fluid pump, introduced into the fluid passage through the introduction. opening, and discharged through the discharge opening. The discharged fluid passes along every fluid microchannel of the three-dimensional integrated circuit as flowing through the plural middle chip layers and the main chip layer so as to perforin heat exchange therewith.
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公开(公告)号:US20180108825A1
公开(公告)日:2018-04-19
申请号:US15782514
申请日:2017-10-12
Applicant: Microjet Technology Co., Ltd.
Inventor: Shih-Chang Chen , Jia-Yu Liao , Chi-Feng Huang , Wei-Ming Lee , Yung-Lung Han
IPC: H01L41/04
Abstract: A driving system includes a voltage conversion module, a switching module, a detecting module, a voltage dividing module and a microcontroller. The voltage conversion module converts a first DC voltage into a second DC voltage. The switching module converts the second DC voltage into an AC voltage so as to drive a piezoelectric actuator of a piezoelectric pump. The detecting module includes a feedback circuit and a gas pressure sensor, wherein the feedback circuit detects an electric power reference value of the switching module, and the gas pressure sensor detects the gas pressure value of the piezoelectric pump. The microcontroller acquires a working frequency according to the electric power reference value so as to operate the piezoelectric actuator at the working frequency. The microcontroller controls the voltage conversion module to adjust the output voltage. Consequently, a gas pressure in the piezoelectric pump is correspondingly adjusted.
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公开(公告)号:US20180066644A1
公开(公告)日:2018-03-08
申请号:US15640735
申请日:2017-07-03
Applicant: Microjet Technology Co., Ltd.
Inventor: Shih-Chang Chen , Ying-Lun Chang , Hsiang-Dyi Wu , Yung-Lung Han , Chi-Feng Huang
IPC: F04B43/04
Abstract: A fluid control device includes a piezoelectric actuator and a deformable substrate. The piezoelectric actuator includes a piezoelectric element and a vibration plate. The piezoelectric element is attached on a first surface of the vibration plate and is subjected to deformation in response to an applied voltage. The vibration plate is subjected to a curvy vibration in response to the deformation of the piezoelectric element. A bulge is formed on a second surface of the vibration plate. The deformable substrate includes a flexible plate and a communication plate stacked on each other. A synchronously-deformed structure is defined by the flexible plate and the communication plate. The deformable substrate is bent in the direction away from the vibration plate. There is a specified depth maintained between the flexible plate and the bulge of the vibration plate. The flexible plate includes a movable part corresponding to the bulge of vibration plate.
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公开(公告)号:US20170222122A1
公开(公告)日:2017-08-03
申请号:US15392080
申请日:2016-12-28
Applicant: MICROJET TECHNOLOGY CO., LTD.
Inventor: Shih-Chang Chen , Chi-Feng Huang , Yung-Lung Han , Jia-Yu Liao , Shou-Hung Chen , Che-Wei Huang , Hung-Hsin Liao , Chao-Chih Chen , Jheng-Wei Chen , Ying-Lun Chang , Chia-Hao Chang , Wei-Ming Lee
CPC classification number: H01L41/09 , F04B43/046 , F16K99/0015 , F16K99/0048 , F16K2099/0094
Abstract: A piezoelectric actuator includes a suspension plate, a piezoelectric ceramic plate, an outer frame and a bracket. The suspension plate is permitted to undergo a curvy vibration from a middle portion to a periphery portion. The piezoelectric ceramic plate is attached on the suspension plate. When a voltage is applied to the piezoelectric ceramic plate, the suspension plate is driven to undergo the curvy vibration. The outer frame is arranged around the suspension plate. The bracket is connected between the suspension plate and the outer frame for elastically supporting the suspension plate, and includes an intermediate part formed in a vacant space between the suspension plate and the outer frame and in parallel with the outer frame and the suspension plate, a first connecting part arranged between the intermediate part and the suspension plate, and a second connecting part arranged between the intermediate part and the outer frame.
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公开(公告)号:US20170222121A1
公开(公告)日:2017-08-03
申请号:US15392050
申请日:2016-12-28
Applicant: MICROJET TECHNOLOGY CO., LTD.
Inventor: Shih-Chang Chen , Chi-Feng Huang , Yung-Lung Han , Jia-Yu Liao , Shou-Hung Chen , Che-Wei Huang , Hung-Hsin Liao , Chao-Chih Chen , Jheng-Wei Chen , Ying-Lun Chang , Chia-Hao Chang , Wei-Ming Lee
CPC classification number: H01L41/09 , F04B43/046 , F16K99/0015 , F16K99/0048 , F16K2099/0094
Abstract: A piezoelectric actuator includes a suspension plate, an outer frame, at least one bracket and a piezoelectric ceramic plate. The suspension plate is a square structure. The length of the suspension plate is in a range between 7.5 mm and 12 mm, and the suspension plate is permitted to undergo a curvy vibration from a middle portion to a periphery portion. The outer frame is arranged around the suspension plate. The at least one bracket is connected between the suspension plate and the outer frame for elastically supporting the suspension plate. The piezoelectric ceramic plate is a square structure and has a length not larger than a length of the suspension plate. The piezoelectric ceramic plate is attached on a first surface of the suspension plate. When a voltage is applied to the piezoelectric ceramic plate, the suspension plate is driven to undergo the curvy vibration.
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公开(公告)号:US20170218948A1
公开(公告)日:2017-08-03
申请号:US15414788
申请日:2017-01-25
Applicant: MICROJET TECHNOLOGY CO., LTD.
Inventor: Ying-Lun Chang , Shih-Chang Chen , Jia-Yu Liao
IPC: F04B49/20 , A61H9/00 , F04B51/00 , F04B45/047 , F04B49/06
CPC classification number: F04B49/20 , F04B45/047 , F04B49/06 , F04B51/00
Abstract: A control method of a driving circuit is provided for controlling a piezoelectric actuator of a piezoelectric pump to move a fluid of a fluid reservoir. Firstly, a driving voltage is outputted from the driving circuit. Then, a first inhalation adjusting process is implemented while the piezoelectric pump performs an inhaling operation. In the first inhalation adjusting process, a fluid pressure of the fluid within the fluid reservoir is detected and the fluid pressure is adjusted to the first predetermined inhalation pressure value according to the detecting result. Then, a first exhalation adjusting process is performed while the piezoelectric pump performs an exhaling operation. In the first exhalation adjusting process, the fluid pressure is detected and the fluid pressure is adjusted to the first predetermined exhalation pressure value according to the detecting result.
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