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公开(公告)号:US10388850B2
公开(公告)日:2019-08-20
申请号:US15409917
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
IPC: H01L41/09 , F16K99/00 , F04B45/047
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 4 mm and 8 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:US10388849B2
公开(公告)日:2019-08-20
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
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:US10285307B2
公开(公告)日:2019-05-07
申请号:US15821075
申请日:2017-11-22
Applicant: Microjet Technology Co., Ltd.
Inventor: Shih-Chang Chen , Jia-Yu Liao , Yung-Lung Han , Chi-Feng Huang
IPC: H05K7/20 , H01L41/053 , H01L41/09 , H01L23/433 , H01L23/467 , H01L23/473 , F04B17/00 , F04B19/00 , F04B35/04 , F04B45/047
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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公开(公告)号:US10260657B2
公开(公告)日:2019-04-16
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:US10236799B2
公开(公告)日:2019-03-19
申请号:US15386762
申请日:2016-12-21
Applicant: MICROJET TECHNOLOGY CO., LTD.
Inventor: Jia-Yu Liao , Shih-Chang Chen , Chi-Feng Huang
Abstract: A driving circuit for a piezoelectrically actuated pump includes a boost converter, a control circuit and a voltage switch circuit. The boost converter outputs a constant voltage. The control circuit includes a voltage-division circuit, a comparator and a frequency adjustment circuit. The constant voltage is divided by the voltage-division circuit into a first voltage and a second voltage. The comparator compares first voltage with second voltage so as to output a positive voltage or a negative voltage. The voltage switch circuit receives and feedbacks positive voltage or negative voltage to the piezoelectric actuator load. The control circuit and the voltage switch circuit form a resonant circuit to control the piezoelectric actuator load according to the variety of minor voltage outputted form the piezoelectric actuator load. The frequency adjustment circuit detects and adjusts the variety of the minor voltage automatically so as to adjust operating frequency of the piezoelectric actuator load.
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公开(公告)号:US20190067550A1
公开(公告)日:2019-02-28
申请号:US16054211
申请日:2018-08-03
Applicant: Microjet Technology Co., Ltd.
Inventor: Hao-Jan Mou , Ta-Wei Hsueh , Li-Pang Mo , Shih-Chang Chen , Ching-Sung Lin , Yung-Lung Han , Chi-Feng Huang , Chang-Yen Tsai
IPC: H01L41/053 , H01L41/047 , H01L41/09 , F04B45/047 , F04B53/00 , A61M15/00
Abstract: The actuator includes a suspension plate, an outer frame, at least one bracket and a piezoelectric plate. The suspension plate includes a first surface and a second surface and is capable of bending and vibrating. The outer frame surrounds a periphery of the suspension plate. The at least one bracket is connected between the suspension plate and the outer frame for supporting the suspension plate. The piezoelectric plate includes a first electrode and a second electrode made of silver palladium alloy doped with graphene. The first electrode is coated with a conducting layer made of graphene-doped paint, and the second electrode is coated with an adhesive layer made of graphene-doped epoxy glue. The adhesive layer is configured to attach and in adhesion with the first surface of the suspension plate. A voltage is applied to the first electrode and the second electrode to make the suspension plate bend and vibrate.
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公开(公告)号:US20190064134A1
公开(公告)日:2019-02-28
申请号:US16042602
申请日:2018-07-23
Applicant: Microjet Technology Co., Ltd.
Inventor: Hao-Jan Mou , Shih-Chang Chen , Li-Pang Mo , Jia-Yu Liao , Hung-Hsin Liao , Chih-Feng Lin , Jheng-Wei Chen , Chi-Feng Huang , Yung-Lung Han
IPC: G01N33/00 , F04B45/047 , F04B43/04
Abstract: An actuating and sensing module includes a first substrate, a second substrate, an actuating device and a sensor. A gas flow channel is formed by stacking the first substrate and the second substrate. The gas inlet, the gas flow channel and the gas outlet are in communication with each other to define a gas flow loop. The actuating device is disposed in the gas inlet of the second substrate and electrically connected to a control circuit to obtain a driving power. The sensor is disposed in the gas flow loop and electrically connected to a control circuit of the first substrate to transmit sensed data. While the actuating device drives outside gas from the outside, the gas is transported into the gas flow loop and sensed by the sensor.
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公开(公告)号:US20190060943A1
公开(公告)日:2019-02-28
申请号:US16052955
申请日:2018-08-02
Applicant: Microjet Technology Co., Ltd.
Inventor: Hao-Jan Mou , Chun-Lung Tseng , Che-Wei Huang , Chien-Tang Wen , Shih-Chang Chen , Yung-Lung Han , Chi-Feng Huang
IPC: B05B17/06
CPC classification number: B05B17/0607 , F04B39/121 , F04B39/123 , F04B45/047
Abstract: A gas transportation device includes a casing, a nozzle plate, a chamber frame, an actuator, an insulating frame and a conducting frame, which are stacked sequentially. The casing has a conduit protruding outwardly from the casing and aligned with a discharging opening. The conduit has a guiding channel and an outlet. The guiding channel has a cone shape and is tapered from an end proximate to the discharging opening to the other end proximate to the outlet. The actuator, the chamber frame and the suspension plate collaboratively define a resonance chamber. When the actuator is driven, the nozzle plate is subjected to resonance and the suspension plate of the nozzle plate vibrates in a reciprocating manner. Consequently, the gas is transported to a gas-guiding chamber through at least one gap and outputted from the discharging opening.
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公开(公告)号:US20190056125A1
公开(公告)日:2019-02-21
申请号:US16035986
申请日:2018-07-16
Applicant: Microjet Technology Co., Ltd.
Inventor: Hao-Jan Mou , Ta-Wei Hsueh , Shih-Chang Chen , Li-Pang Mo , Ching-Sung Lin , Yung-Lung Han , Chi-Feng Huang , Hsuan-Kai Chen
Abstract: A portable air cleaning apparatus includes a housing, an actuating and sensing device and an air cleaning unit. The housing includes an inlet through hole and an outlet through hole. The actuating and sensing module and the air cleaning unit are disposed inside the housing. The actuating and sensing module includes an actuating device and a sensor. The actuating device drives an external air to flow into an interior of the housing via the inlet through hole and discharge the air via the outlet through hole, so as to form an internal air flow. The sensor detects the internal air flow to generate an air-sensing result, such that the actuating and sensing module can accordingly control the air cleaning unit to turn on, turn off, or adjust cleaning intensity. Thus, the portable air cleaning apparatus can monitor and automatically clean the ambient air at the same time.
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公开(公告)号:US10199306B2
公开(公告)日:2019-02-05
申请号:US15893919
申请日:2018-02-12
Applicant: Microjet Technology Co., Ltd.
Inventor: Shih-Chang Chen , Jia-Yu Liao , Jheng-Wei Chen , Chi-Feng Huang , Yung-Lung Han
IPC: H01L23/467 , G06F1/20 , H05K7/20
Abstract: An air-cooling heat dissipation device includes a guiding carrier and a gas pump. The guiding carrier includes a pump-receiving recess, a first guiding chamber, a second guiding chamber, a communication structure and at least one discharge groove. The first guiding chamber is concavely formed in the pump-receiving recess, and is in communication with the first guiding chamber. The communication structure is communicating between the first guiding chamber and the second guiding chamber, while the electronic component is disposed within the second guiding chamber. The gas pump is disposed within the pump-receiving recess. When the gas pump is enabled, an ambient gas is driven to sequentially flow through the first guiding chamber, the communication structure and the second guiding chamber to remove the heat from the electronic component. Since the discharge groove is communicating between the second guiding chamber and exterior surroundings, the heated gas is outputted from the discharge groove.
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