Vibrating element with conductive frames

Patent metadata

Field	Value
Publication number	US-11309482-B2
Application number	US-201916251678-A
Country	US
Kind code	B2
Filing date	Jan 18, 2019
Priority date	Jan 19, 2018
Publication date	Apr 19, 2022
Grant date	Apr 19, 2022

Abstract

A vibrating element includes a conductive first frame including a first beam portion and a first support portion supporting one end of the first beam portion, a conductive second frame that includes a second beam portion and a second support portion supporting one end of the second beam portion and is disposed separated from the first frame, an oscillating body that is disposed between another end of the first beam portion and another end of the second beam portion and connects the first beam portion and the second beam portion in an insulated state, and a power-consuming member that is installed on the oscillating body and is supplied with power via the first frame and the second frame.

First claim

What is claimed is:

1. A vibrating element, comprising:
a conductive first frame including a first beam portion and a first support portion supporting one end of the first beam portion;
a conductive second frame that includes a second beam portion and a second support portion supporting one end of the second beam portion and is disposed separated from the conductive first frame;
an oscillating body that is disposed between another end of the first beam portion and another end of the second beam portion and connects the first beam portion and the second beam portion in an insulated state; and
a power-consuming member that is installed on the oscillating body and is supplied with power via the conductive first frame and the conductive second frame.

2. The vibrating element of claim 1 , wherein the vibrating element is configured to supply power to the power-consuming member by providing a potential difference between the conductive first frame and the conductive second frame.

3. The vibrating element of claim 1 , wherein the power-consuming member includes at least one among an LED light source, a laser light source, an acceleration sensor, a heater, a temperature sensor, and a coil.

4. The vibrating element of claim 1 ,
wherein each of the first support portion and the second support portion has a first portion and a second portion,
wherein the first portion and the second portion of the first support portion and the first portion and the second portion of the second support portion are provided in a plane where the first support portion and the second support portion are provided,
wherein the first portion of the first support portion and the first portion of the second support portion extend in a second direction substantially orthogonal to a first direction where the first beam portion and the second beam portion extend,
wherein an edge portion of the first portion of the first support portion opposes an edge portion of the first portion of the second support portion,
wherein the second portion of the first support portion supports the first beam portion,
wherein the second portion of the second support portion supports the second beam portion,
wherein the second portion of the first support portion protrudes in the second direction from the first portion of the first support portion,
wherein the second portion of the second support portion protrudes in the second direction from the second portion of the second support portion,
wherein the second portion of the first support portion has a first elongated shape with a first width in the first direction that is smaller than a width of the first portion of the first support portion, and
wherein the second portion of the second support portion has a second elongated shape with a second width in the first direction that is smaller than a width of the first portion of the second support portion.

5. The vibrating element of claim 1 , further comprising:
an insulated holding member holding the conductive first frame and the conductive second frame in a separated state; and
a drive unit that subjects the oscillating body to vibrational driving via the conductive first frame and the conductive second frame;
wherein the drive unit is provided on one face side of the first support portion and the second support portion, and
wherein the insulated holding member is disposed on a face on an opposite side of the drive unit side of the first support portion and the second support portion and extends along edge portions of the first support portion and the second support portion that extend in the same direction as the first beam portion and the second beam portion.

6. The vibrating element of claim 1 ,
wherein each of the first beam portion and the second beam portion has an oscillating-body support portion that extends in a plane in a direction intersecting a first direction where the first beam portion and the second beam portion extends,
wherein the first support portion and the second support portion are provided in the plane,
wherein the oscillating body is installed on the oscillating-body support portion, and
wherein the oscillating-body support portion is disposed at the other end of the first beam portion and the other end of the second beam portion.

7. The vibrating element of claim 1 , further comprising:
an insulated holding member holding the conductive first frame and the conductive second frame in a separated state; and
a drive unit that subjects the oscillating body to vibrational driving via the conductive first frame and the conductive second frame,
wherein, between the conductive first frame and the conductive second frame, a space of a certain width extending in a second direction orthogonal to a first direction, wherein the first beam portion and the second beam portion extend, is provided in a plane wherein the first support portion and the second support portion are provided, and
wherein the drive unit, the insulated holding member, and the oscillating body are disposed having substantial linear symmetry across a centerline of the space extending in the second direction.

8. The vibrating element of claim 7 , further comprising: an insulated spacer ensuring the space by contacting the conductive first frame and the conductive second frame.

9. The vibrating element of claim 1 , further comprising:
a drive unit that is disposed straddling the first support portion and the second support portion and subjects the oscillating body to vibrational driving via the conductive first frame and the conductive second frame.

10. The vibrating element of claim 9 , further comprising:
second wiring that is connected to the conductive first frame and supplies power to the conductive first frame; and
third wiring that is connected to the conductive second frame and fixes the conductive second frame at a predetermined potential,
wherein the drive unit includes a piezoelectric body, a first electrode provided straddling an upper face and a lower face of the piezoelectric body in a state of being electrically connected to the conductive second frame, and a second electrode provided on the lower face of the piezoelectric body in a state of being electrically connected to the conductive first frame.

11. The vibrating element of claim 9 , further comprising:
second wiring that is connected to the conductive first frame and supplies power to the conductive first frame; and
third wiring that is connected to the conductive second frame and fixes the conductive second frame at a predetermined potential,
wherein the drive unit includes a piezoelectric body, a first electrode provided straddling an upper face and a lower face of the piezoelectric body in a state of being electrically connected to the conductive second frame, and a second electrode provided on the lower face of the piezoelectric body in a state of being electrically connected to the conductive first frame.

12. The vibrating element of claim 9 , wherein the vibrating element is configured to supply power to the power-consuming member by providing a potential difference between the conductive first frame and the conductive second frame.

13. The vibrating element of claim 9 ,
wherein between the conductive first frame and the conductive second frame, a space extending in a second direction substantially orthogonal to a first direction is provided in a plane,
wherein the first beam portion and the second beam portion extend in the first direction,
wherein the first support portion and the second support portion are provided in the plane, and
wherein the conductive first frame and the conductive second frame are dispose

Assignees

• Funai Electric Co

Inventors

• Masuda Yuichiro

Classifications

• F21V14/02

  by movement of light sources {(in vehicle head lamps F21S41/657)} · CPC title

• B81B7/0006 Primary

  Interconnects · CPC title

• G02B26/105

  with one or more pivoting mirrors or galvano-mirrors (G02B26/101 takes precedence) · CPC title

• B06B1/06

  operating with piezoelectric effect or with electrostriction (piezoelectric or electrostrictive devices per se H10N30/00) · CPC title

• H01L41/044

  Electricity · mapped topic