Transducer device

Patent metadata

Field	Value
Publication number	US-11258004-B2
Application number	US-201716325308-A
Country	US
Kind code	B2
Filing date	Aug 10, 2017
Priority date	Aug 31, 2016
Publication date	Feb 22, 2022
Grant date	Feb 22, 2022

Abstract

A transducer device, including an electroactive polymer transducer, which has at least two electrode layers which are situated in parallel to one another and which are connected to one another by inserting an elastic intermediate layer in each case, and including a circuit having electronic components for the purpose of generating an electrical voltage applied to the electrode layers of the polymer transducer, the circuit increasing an input voltage to a voltage which is increased with regard to the input voltage.

First claim

What is claimed is:

1. A transducer device, comprising:
an electroactive polymer transducer, which has electrode layers which are situated in parallel to one another and which are connected to one another by inserting an elastic intermediate layer between the electrode layers;
a carrier element to which edge areas of the electroactive polymer transducer are fastened, the carrier element including a plurality of electrically insulating layers; and
a circuit having electronic components configured to generate an electrical voltage and to apply the electrical voltage to connection areas of the electrode layers of the electroactive polymer transducer, the circuit increasing an input voltage of the circuit to an increased voltage which is increased with regard to the input voltage, the electrical voltage which the circuit applies to the connection areas of the electrode layers being the increased voltage;
wherein the circuit is situated at least partially between at least two of the plurality of electrically insulating layers of the carrier element, and the circuit forms, together with the electroactive polymer transducer, a combined unit in which the connection areas of the electrode layers to which the electrical voltage of the circuit is applied are electrically insulated; and
wherein the electrode layers and the elastic intermediate layer have an annular configuration, and in a central area of the electroactive polymer transducer circumferentially surrounded by the electrode layers and the elastic intermediate layer, a weight element is situated which orients the central area to be parallel to and at a distance from the carrier element.

2. The transducer device of claim 1 , wherein the carrier element has a flexible configuration.

3. The transducer device of claim 1 , wherein the electronic components of the circuit are accommodated at least partially in at least one recess of one of the electrically insulating layers, the one of the plurality of electrically insulating layers being covered on both sides by other layers of the plurality of electrically insulating layers.

4. The transducer device of claim 1 , wherein at least one of the electronic components of the circuit is situated on and connected to an outer side of an outer one of the plurality of electrically insulating layers, and the at least one of the electronic components is enclosed at least partially by an element which has electrically insulating properties.

5. The transducer device of claim 1 , wherein the electronic components of the circuit are covered at least partially by a metallic layer.

6. The transducer device of claim 1 , wherein the plurality of electrically insulating layers: (i) include polyamide (PI), or polycarbonate (PC), or a polyester (PE)-based plastic, and/or (ii) are made of polyamide (PI), or polycarbonate (PC), or a polyester (PE)-based plastic.

7. The transducer device of claim 1 , wherein the plurality of electrically insulating layers connected to one another though a laminating process.

8. The transducer device of claim 1 , wherein the increased voltage is more than 50 V.

Assignees

• Bosch Gmbh Robert

Inventors

• Denes Istvan

Classifications

• H10N30/206 Primary

  using only longitudinal or thickness displacement, e.g. d33 or d31 type devices · CPC title

• H01L41/45

  Electricity · mapped topic

• H01L41/0986

  Electricity · mapped topic

• H01L41/193

  Electricity · mapped topic

• H01L41/1132 Primary

  Electricity · mapped topic