公开(公告)号：US10536098B2

公开(公告)日：2020-01-14

申请号：US15042432

申请日：2016-02-12

Applicant: ANALOG DEVICES, INC.

Inventor： Qian Zhang ,  Yingqi Jiang ,  Kuang L. Yang

IPC: H01L41/113 ,  H02N2/18 ,  F03G5/06

Abstract: An exemplary energy harvester includes a piezoelectric diaphragm, an eccentric mass that rotates in response to external motion, and a piezoelectric stress inducer coupled with the eccentric mass and the piezoelectric diaphragm. The piezoelectric stress inducer deforms the piezoelectric diaphragm in response to rotational motion of the eccentric mass, causing the piezoelectric diaphragm to generate electrical energy.

公开(公告)号：US10069441B2

公开(公告)日：2018-09-04

申请号：US14918838

申请日：2015-10-21

Applicant: Analog Devices, Inc.

Inventor： Yingqi Jiang ,  Qian Zhang ,  Kuang L. Yang

IPC: H01L41/113 ,  H02N2/18

Abstract: An electric energy scavenger device has a housing forming an internal chamber with an internal wall, and a movable element contained within the internal chamber. The movable element is freely movable and unconnected to any other movable element within the internal chamber. Within the internal chamber, the device also has a plurality of piezoelectric charge conversion elements positioned along the internal wall. The plurality of piezoelectric charge conversion elements are positioned side-by-side to contact the movable element when the movable element moves within the internal chamber. In addition, the movable element is configured to simultaneously contact at least two of the plurality of side-by-side piezoelectric charge conversion elements. During use, the movable element is freely movable within the internal chamber in response to movement of the entire housing.

公开(公告)号：US20180087491A1

公开(公告)日：2018-03-29

申请号：US15277511

申请日：2016-09-27

Applicant: Analog Devices, Inc.

Inventor： Qian Zhang ,  Kuang L. Yang ,  Lei Gu

IPC: F03G7/08 ,  G01P15/08

CPC classification number: F03G7/08 ,  B81B3/0037 ,  B81B2203/0163 ,  G01P15/125 ,  G01P15/18 ,  G01P2015/084

Abstract: Microelectromechanical systems (MEMS) devices are described that include a proof mass movably connected to a substrate by accordion springs disposed on opposite sides of the proof mass, with a coupler coupling two of the accordion springs together. The coupler is a bar in some implementations, and may be rigid. The coupler therefore restricts the motion of the accordion springs relative to each other. In this manner, the motion of the proof mass may be restricted to preferred types and frequencies.

公开(公告)号：US20170117824A1

公开(公告)日：2017-04-27

申请号：US14918838

申请日：2015-10-21

Applicant: Analog Devices, Inc.

Inventor： Yingqi Jiang ,  Qian Zhang ,  Kuang L. Yang

IPC: H02N2/18

CPC classification number: H02N2/183 ,  H02N1/04

Abstract: An electric energy scavenger device has a housing forming an internal chamber with an internal wall, and a movable element contained within the internal chamber. The movable element is freely movable and unconnected to any other movable element within the internal chamber. Within the internal chamber, the device also has a plurality of piezoelectric charge conversion elements positioned along the internal wall. The plurality of piezoelectric charge conversion elements are positioned side-by-side to contact the movable element when the movable element moves within the internal chamber. In addition, the movable element is configured to simultaneously contact at least two of the plurality of side-by-side piezoelectric charge conversion elements. During use, the movable element is freely movable within the internal chamber in response to movement of the entire housing.

公开(公告)号：US10920756B2

公开(公告)日：2021-02-16

申请号：US15277511

申请日：2016-09-27

Applicant: Analog Devices, Inc.

Inventor： Qian Zhang ,  Kuang L. Yang ,  Lei Gu

IPC: H02K11/00 ,  F03G7/08 ,  G01P15/125 ,  B81B3/00 ,  G01P15/18 ,  G01P15/08

Abstract: Microelectromechanical systems (MEMS) devices are described that include a proof mass movably connected to a substrate by accordion springs disposed on opposite sides of the proof mass, with a coupler coupling two of the accordion springs together. The coupler is a bar in some implementations, and may be rigid. The coupler therefore restricts the motion of the accordion springs relative to each other. In this manner, the motion of the proof mass may be restricted to preferred types and frequencies.

公开(公告)号：US20170237368A1

公开(公告)日：2017-08-17

申请号：US15042432

申请日：2016-02-12

Applicant: ANALOG DEVICES, INC.

Inventor： Qian Zhang ,  Yingqi Jiang ,  Kuang L. Yang

IPC: H02N2/18 ,  F03G5/06

Abstract: An exemplary energy harvester includes a piezoelectric diaphragm, an eccentric mass that rotates in response to external motion, and a piezoelectric stress inducer coupled with the eccentric mass and the piezoelectric diaphragm. The piezoelectric stress inducer deforms the piezoelectric diaphragm in response to rotational motion of the eccentric mass, causing the piezoelectric diaphragm to generate electrical energy.