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公开(公告)号：US20210017976A1
公开(公告)日：2021-01-21
申请号：US16903089
申请日：2020-06-16
Applicant: Microjet Technology Co., Ltd.
Inventor： Hao-Jan Mou , Shih-Chang Chen , Jia-Yu Liao , Hung-Hsin Liao , Chung-Wei Kao , Yung-Lung Han , Chi-Feng Huang , Chang-Yen Tsai , Wei-Ming Lee
Abstract: A micro pump is disclosed and includes a fluid-converging plate, a valve membrane, a fluid-outlet plate and a pump core module. The fluid-converging plate includes an inner recess, a protruding portion and a fluid-converging aperture. The protruding portion is disposed at a center of the inner recess. The valve membrane includes a valve aperture. The protruding portion of the fluid-converging plate abuts against the valve aperture. A fluid-converging chamber is formed between the valve membrane and the fluid-converging plate. The fluid-outlet plate in a ring shape includes a fluid-outlet channel. The valve aperture is in fluid communication with the fluid-outlet channel. When the fluid is inhaled into the pump core module, the fluid flows to the fluid-converging chamber through the fluid-converging aperture and then pushes out the valve membrane to flow into the fluid-outlet channel of the fluid-outlet plate through the valve aperture. Thereby the fluid transportation is achieved.
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公开(公告)号：US10883485B2
公开(公告)日：2021-01-05
申请号：US15782482
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
Abstract: A driving system includes a voltage conversion module, a frequency control module, a voltage switching module and a detecting module. The voltage conversion module is used for converting a first DC voltage into a second DC voltage. The frequency control module searches a resonant working frequency of a piezoelectric actuator through circuit oscillation and generates a switching signal according to the resonant working frequency. According to the switching signal, the voltage switching module converts the second DC voltage into an AC voltage so as to drive the piezoelectric actuator. The detecting module includes a gas pressure sensor and a microcontroller. The gas pressure sensor generates a detected gas pressure value according to a result of detecting a gas pressure of the piezoelectric pump. The microcontroller controls the voltage conversion module to adjust the output voltage. Consequently, the gas pressure of the piezoelectric pump is adjusted.
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公开(公告)号：US10680157B2
公开(公告)日：2020-06-09
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
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：US10584695B2
公开(公告)日：2020-03-10
申请号：US15392061
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
Abstract: A miniature fluid control device includes a piezoelectric actuator and a housing. The piezoelectric actuator comprises a suspension plate, an outer frame, at least one bracket and a piezoelectric ceramic plate. The piezoelectric ceramic plate is attached on a first surface of the suspension plate and has a length not larger than that of the suspension plate. The housing includes a gas collecting plate and a base. The gas collecting plate is a frame body with a sidewall and comprises a plurality of perforations. The base seals a bottom of the piezoelectric actuator and has a central aperture corresponding to the middle portion of the suspension plate. When the voltage is applied to the piezoelectric actuator, the suspension plate is permitted to undergo the curvy vibration, the fluid is transferred from the central aperture of the base to the gas-collecting chamber, and exited from the perforations.
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公开(公告)号：US10438868B2
公开(公告)日：2019-10-08
申请号：US15894256
申请日：2018-02-12
Applicant: Microjet Technology Co., Ltd.
Inventor： Jia-Yu Liao , Shih-Chang Chen , Che-Wei Huang , Chi-Feng Huang , Yung-Lung Han
IPC: H01L23/467 , H01L23/367 , H01L23/40 , H01L23/36
Abstract: An air-cooling heat dissipation device is provided for removing heat from an electronic component. The air-cooling heat dissipation device includes a supporting substrate, an air pump and a heat sink. The supporting substrate includes a top surface, a bottom surface, an introduction opening and a thermal conduction plate. The thermal conduction plate is located over the top surface of the supporting substrate and aligned with the introduction opening. The electronic component is disposed on the thermal conduction plate. The air pump is fixed on the bottom surface of the supporting substrate and aligned with the introduction opening. The heat sink is attached on the electronic component. When the air pump is enabled, an ambient air is introduced into the introduction opening to remove the heat from the thermal conduction plate.
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Patent Agency Ranking
公开(公告)号：US10371136B2
公开(公告)日：2019-08-06
申请号：US15409871
申请日：2017-01-19
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
Abstract: A miniature pneumatic device includes a miniature fluid control device and a miniature valve device. The miniature fluid control device includes a gas inlet plate, a resonance plate, a piezoelectric actuator and a gas collecting plate. A first chamber is formed between the resonance plate and the piezoelectric actuator. After a gas is fed into the gas inlet plate, the gas is transferred to the first chamber through the resonance plate and then transferred downwardly. Consequently, a pressure gradient is generated to continuously push the gas. The miniature valve device includes a valve plate and a gas outlet plate. After the gas is transferred from the miniature fluid control device to the miniature valve device, the valve opening of the valve plate is correspondingly opened or closed and the gas is transferred in one direction. Consequently, a pressure-collecting operation or a pressure-releasing operation is selectively performed.
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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：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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