Laminated piezoelectric element
A piezoelectric element and laminated sheet technology, applied in electrical elements, piezoelectric devices/electrostrictive devices, piezoelectric/electrostrictive/magnetostrictive devices, etc., can solve the problem of increasing the vibration force and increasing the response speed of the mass body , variable components are difficult to thin and other problems, to achieve the effect of simple connection
Pending Publication Date: 2022-06-21
FUJIFILM CORP
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- Application Information
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Problems solved by technology
[0005]These variable elements are difficult to thin
In particular, the vibration motor has the following difficulties, that is, in order to increase the vibration force, it is necessary to increase the mass body, and it is difficult to perform frequency modulation for adjusting the degree of vibration, and the response speed is slow.
Method used
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[0054] Hereinafter, the multilayer piezoelectric element of the present invention will be described in detail based on preferred embodiments shown in the accompanying drawings.
[0055] The description of the components described below may be based on representative embodiments of the present invention, but the present invention is not limited to these embodiments.
[0056] In addition, the drawings shown below are all conceptual diagrams for explaining the present invention. Therefore, the thickness, size, shape, positional relationship, and the like of each constituent member differ from the actual member.
[0057] In addition, in this specification, the numerical range represented using "-" means the range which includes the numerical value described before and after "-" as a lower limit and an upper limit.
[0058] figure 1 In the figure, an example of the multilayer piezoelectric element of the present invention is schematically shown.
[0059] figure 1 The illustrate...
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Abstract
The present invention addresses the problem of providing a laminated piezoelectric element in which piezoelectric thin films are laminated, wherein an electrode layer of each piezoelectric thin film and an external device can be easily connected. The problem is solved by a piezoelectric thin film having a piezoelectric layer and a laminated sheet in which an electrode layer and a protective layer are laminated, the piezoelectric layer being disposed between the laminated sheets in which the electrode layers face each other, the laminated sheet having a protruding portion protruding from the piezoelectric layer, leading-out wires attached to the surfaces of the electrode layers and the protective layer are provided on the protruding portions, and the electrode layers of the same polarity of the piezoelectric thin films are connected by bringing the leading-out wires into contact with each other.
Description
technical field [0001] The present invention relates to a laminated piezoelectric element for use in an actuator or the like. Background technique [0002] So-called exciters (excitons) that vibrate and emit sound by contacting and attaching to various objects are used in various applications. [0003] For example, in an office, when a presentation, a conference call, etc. are performed, an exciter can be installed in a conference table, a whiteboard, a screen, etc., instead of a speaker to emit sound. In the case of a vehicle such as an automobile, an exciter can be installed in the console, A-pillar, and canopy, etc., to emit a warning sound, a warning sound, music, and the like. Furthermore, in the case of a vehicle that does not emit an engine sound such as a hybrid vehicle or an electric vehicle, a vehicle approach notification sound can be emitted from the bumper or the like by attaching an exciter to the bumper or the like. [0004] As a variable element that genera...
Claims
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IPC IPC(8): H01L41/047H04R17/00H01L41/083H01L41/09H01L41/18
CPCH04R17/005H10N30/50H10N30/872H10N30/871H10N30/852H04R17/00H10N30/87H10N30/20H10N30/85H10N30/857H10N30/098
Inventor 香川裕介芦川辉男平口和男
Owner FUJIFILM CORP