Micro-mechanical gyroscope and electronic product

Patent metadata

Field	Value
Publication number	US-12510358-B2
Application number	US-202318313350-A
Country	US
Kind code	B2
Filing date	May 7, 2023
Priority date	Feb 14, 2023
Publication date	Dec 30, 2025
Grant date	Dec 30, 2025

Abstract

The present disclosure provides a micro-mechanical gyroscope and an electronic product. The micro-mechanical gyroscope includes first mass blocks, second mass blocks, a first driving member, a second driving member, first coupling components and second coupling components. The second mass blocks, the first driving member and the second driving member are arranged between the first mass blocks. The second mass blocks are arranged on either sides of the first second driving members. A first mass block arranged on a side of the first driving member is connected to the first driving member through a first coupling component, and a first mass block arranged on a side of the second driving member is connected to the second driving member through a first coupling component. Ends of the second mass block in the first direction are connected to the first driving member and the second driving member, respectively, through the second coupling components.

First claim

What is claimed is:

1 . A micro-mechanical gyroscope, comprising:
a plurality of first mass blocks and a plurality of second mass blocks, each second mass block having a rectangular shape; a first driving member and a second driving member; and first coupling components and second coupling components, and both first coupling components and second coupling components being flexible components; wherein the plurality of first mass blocks are arranged in a first direction (Y), and the plurality of second mass blocks, the first driving member and the second driving member are arranged between the plurality of first mass blocks; wherein the first driving member and the second driving member are arranged in the first direction (Y), the plurality of second mass blocks are arranged on either sides of the first driving member and the second driving member, the second mass blocks are arranged in a second direction (X), and the second direction (X) is perpendicular to the first direction (Y); wherein a first mass block arranged on a side of the first driving member away from the second driving member is connected to the first driving member through a first coupling component, and a first mass block arranged on a side of the second driving member away from the first driving member is connected to the second driving member through a first coupling component; and wherein ends of the plurality of second mass blocks in the first direction (Y) are connected to the first driving member and the second driving member, respectively, through the second coupling components; the first coupling component comprises first connecting beams, wherein the first driving member is connected to the first mass block through a first connecting beam, and the second driving member is connected to the first mass block through a first connecting beam; and the second coupling component comprises second connecting beams and two first coupling parts, wherein each end of each first coupling part of the two first coupling parts is connected with the respective second connecting beam, one first coupling part of the two first coupling parts is connected to the first driving member and one end of the second mass block, respectively, through the second connecting beams located at both ends of one first coupling part, and the other first coupling part is connected to the second driving member and the other end of the second mass block respectively, through the second connecting beams located at both ends of the other first coupling part.

2 . The micro-mechanical gyroscope according to claim 1 , wherein the plurality of first mass blocks are symmetrically arranged along the first direction (Y) with regard to a center of the micro-mechanical gyroscope, the plurality of second mass blocks are symmetrically arranged along the second direction (X) with regard to the center of the micro-mechanical gyroscope, and the first driving member and the second driving member are symmetrically arranged along the first direction (Y) regard to the center of the micro-mechanical gyroscope.

3 . The micro-mechanical gyroscope according to claim 1 , further comprising a base, and third coupling components and fourth coupling components being flexible components, and the base has a rectangular area, first anchor points and second anchor points;
wherein a respective first anchor point is arranged at each corner of the rectangular area, the first driving member and the second driving member are arranged on either sides of the rectangular area along the first direction (Y), the plurality of second mass blocks are arranged on either sides of the rectangular area along the second direction (X), and the second anchor points are arranged on an outer side of a second mass block away from the rectangular area from a view along a Z-axis direction of the micro-mechanical gyroscope; wherein a second coupling component is connected to a first anchor point through a third coupling component, and each first mass block of the plurality of first mass blocks arranged to face to each other in the first direction (Y) is connected to the second anchor point through the respective fourth coupling component.

4 . The micro-mechanical gyroscope according to claim 3 , wherein a third coupling component comprises a third connecting beam, and the second coupling component is connected to a respective first anchor point through the third connecting beam; and
wherein a fourth coupling component comprises fourth connecting beams and a second coupling part connected to a respective second anchor point, and each end of the second coupling part is connected to a respective first mass block through a fourth connecting beam.

5 . The micro-mechanical gyroscope according to claim 4 , further comprising a fifth coupling component being a flexible component, the base further has a third anchor point located between the first driving member and the second driving member, the plurality of second mass blocks are connected through the fifth coupling component, and the fifth coupling component is connected to the third anchor point.

6 . The micro-mechanical gyroscope according to claim 5 , wherein the fifth coupling component comprises a third coupling part and fifth connecting beams, the third coupling part is connected to the third anchor point, and each end of the third coupling part is connected to a respective second mass block through a respective fifth connecting beam.

7 . The micro-mechanical gyroscope according to claim 1 , further comprising in-plane driving transducers, out-of-plane detection transducers, and in-plane detection transducers;
wherein each of the first driving member and the second driving member has an accommodation space, and each in-plane driving transducer of the in-plane driving transducers is arranged in a corresponding accommodation space; wherein an out-of-plane detection transducer and in-plane detection transducers spaced from each other are arranged on each first mass block, and a respective out-of-plane detection transducer is arranged on each second mass block of the plurality of second mass blocks.

8 . The micro-mechanical gyroscope according to claim 7 , wherein out-of-plane detection transducers arranged on the plurality of first mass blocks are symmetrically arranged along the first direction (Y) with regard to a center of the micro-mechanical gyroscope, each first mass block equipped with two in-plane detection transducers, the in-plane detection transducers arranged on the plurality of first mass blocks are symmetrically arranged along the first direction (Y) with regard to a connection position of two first mass blocks, and out-of-plane detection transducers arranged on the plurality of second mass blocks are symmetrically arranged along the second direction (X) with regard to the center of the micro-mechanical gyroscope.

9 . An electronic product, comprising:
a main body; and the micro-mechanical gyroscope according to claim 1 ; wherein the micro-mechanical gyroscope is installed in the main body.

Assignees

• Aac Kaitai Tech Wuhan Co Ltd
• Aac Kaital Tech Wuhan Co Ltd

Inventors

• Ma Zhao
• Kan Xiao
• Yan Shitao
• Yang Shan
• Zhan Zhan
• Li Yang
• Tan Veronica
• Lai Kahkeen

Classifications

• G01C19/5769

  Manufacturing; Mounting; Housings · CPC title

• G01C19/5747 Primary

  each sensing mass being connected to a driving mass, e.g. driving frames · CPC title

• G01C19/574 Primary

  the devices having two sensing masses in anti-phase motion · CPC title