Light and sound signalling device
US-2017309141-A1 · Oct 26, 2017 · US
Button device using piezoelectric element
US10103313B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10103313-B2 |
| Application number | US-201615179205-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 10, 2016 |
| Priority date | Jul 30, 2015 |
| Publication date | Oct 16, 2018 |
| Grant date | Oct 16, 2018 |
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- Title
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Abstract
Official abstract text for this publication.
A button device includes a piezoelectric element which includes a piezoelectric body with one surface on which a first external electrode and a second external electrode are formed and a plate with one surface attached to the other surface of the piezoelectric body, a supporting plate disposed on the one surface of the piezoelectric body, a cover disposed on the other surface of the plate, a first spacer provided between an edge portion of the one surface of the plate and the supporting plate, a second spacer provided between at least a part of an edge portion of the other surface of the plate and the cover to provide a separation space between the plate and the cover, and a dot provided in the separation space to transfer an external force to the piezoelectric element or to transfer a vibration of the piezoelectric element to the cover.
First claim
Opening claim text (preview).
What is claimed is: 1. A button device using a piezoelectric element, comprising: the piezoelectric element which comprises a piezoelectric body with one surface on which a first external electrode and a second external electrode are formed and a plate with one surface attached to the other surface of the piezoelectric body; a supporting plate disposed on the one surface of the piezoelectric body; a cover disposed on the other surface of the plate; a first spacer provided between an edge portion of the one surface of the plate and the supporting plate to provide a space in which the piezoelectric element is deformable due to an external force applied to the cover; a second spacer provided between at least a part of an edge portion of the other surface of the plate and the cover to provide a separation space between the plate and the cover; and a dot provided in the separation space to transfer the external force to the piezoelectric element or to transfer a vibration of the piezoelectric element to the cover. 2. The button device of claim 1 , further comprising an adhesive between the plate and the second spacer and an adhesive between the second spacer and the cover. 3. The button device of claim 1 , wherein the second spacer is a double-sided adhesive tape. 4. The button device of claim 1 , wherein the separation space is empty. 5. The button device of claim 1 , wherein the separation space is filled with a soft material. 6. The button device of claim 1 , wherein the second spacer is formed along the edge portion. 7. The button device of claim 1 , wherein a plurality of such second spacers are formed at a plurality of places of the edge portion while being spaced apart. 8. The button device of claim 1 , wherein the piezoelectric body is a stack type piezoelectric body. 9. The button device of claim 1 , wherein a ratio of a length of the piezoelectric body to a length of the plate is 55% or more.
Assignees
Inventors
Classifications
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
using a piezoelectric bender, e.g. bimorph · CPC title
- H01L41/1138Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US10103313B2 cover?
- A button device includes a piezoelectric element which includes a piezoelectric body with one surface on which a first external electrode and a second external electrode are formed and a plate with one surface attached to the other surface of the piezoelectric body, a supporting plate disposed on the one surface of the piezoelectric body, a cover disposed on the other surface of the plate, a fi…
- Who is the assignee on this patent?
- Wisol Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01L41/1138. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Oct 16 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).