公开(公告)号：US20240133587A1

公开(公告)日：2024-04-25

申请号：US18546555

申请日：2022-02-14

Applicant: TDK Electronics AG

Inventor： Markus Koini ,  Michael Krenn ,  Markus Puff ,  Stephan Bigl

IPC: F24H3/04 ,  F24H9/1863 ,  H05B3/26

CPC classification number: F24H3/0447 ,  F24H9/1872 ,  H05B3/265 ,  H05B3/267 ,  F24H2250/04 ,  H05B2203/02

Abstract: A PTC heating element for an electric heater having a PTC element, an electrode formed on a surface of the PTC element for electrically contacting the PTC element, at least one additional contact for electrically connecting the electrode of the PTC element, and a carrier layer. The carrier layer is electrically insulating, the thickness of the PTC element is ≤500 μm, and the installation height of the PTC heating element is between 500 μm and 2500 μm. Also disclosed is an electric heater and use of the PTC heating element in a motor vehicle.

公开(公告)号：US20240230156A9

公开(公告)日：2024-07-11

申请号：US18546555

申请日：2022-02-14

Applicant: TDK Electronics AG

Inventor： Markus Koini ,  Michael Krenn ,  Markus Puff ,  Stephan Bigl

IPC: F24H3/04 ,  F24H9/1863 ,  H05B3/26

CPC classification number: F24H3/0447 ,  F24H9/1872 ,  H05B3/265 ,  H05B3/267 ,  F24H2250/04 ,  H05B2203/02

Abstract: A PTC heating element for an electric heater having a PTC element, an electrode formed on a surface of the PTC element for electrically contacting the PTC element, at least one additional contact for electrically connecting the electrode of the PTC element, and a carrier layer. The carrier layer is electrically insulating, the thickness of the PTC element is ≤500 μm, and the installation height of the PTC heating element is between 500 μm and 2500 μm. Also disclosed is an electric heater and use of the PTC heating element in a motor vehicle.

公开(公告)号：US20230260681A1

公开(公告)日：2023-08-17

申请号：US17996758

申请日：2021-05-27

Applicant: TDK Electronics AG

Inventor： Michael Krenn ,  Hans Prem ,  Huinan Xie

IPC: H01C1/02 ,  H01C7/02 ,  H01C1/01

CPC classification number: H01C1/02 ,  H01C1/01 ,  H01C7/022

Abstract: In an embodiment an electrical component includes an electrical resistor having a PTC ceramic with a reference temperature exceeding 150° C., wherein, at the reference temperature, a reference resistance is twice an amount of a minimum resistance of the PTC ceramic.

公开(公告)号：US20220287187A1

公开(公告)日：2022-09-08

申请号：US17637725

申请日：2020-10-12

Applicant: TDK Electronics AG

Inventor： Jan Ihle ,  Thomas Bernert ,  Stefan Endler ,  Michael Krenn ,  Stephan Bigl ,  Markus Puff ,  Sebastian Redolfi

IPC: H05K3/30 ,  H05K1/18 ,  H01G2/06 ,  H05K3/34 ,  H01C7/02

Abstract: In an embodiment a component includes at least one carrier layer, the carrier layer having a top side and a bottom side and at least one functional layer arranged on the top side of the carrier layer, the functional layer including a material having a specific electrical characteristic, wherein the component is configured for direct integration into an electrical system as a discrete component.

公开(公告)号：US11601762B2

公开(公告)日：2023-03-07

申请号：US17286383

申请日：2019-10-22

Applicant: TDK Electronics AG

Inventor： Michael Gebhart ,  Peter Lukan ,  Michael Krenn

IPC: H04R17/00 ,  H04R17/10

Abstract: A sound transducer and a method for operating a sound transducer are disclosed. In an embodiment a sound transducer includes a first piezoelectric element having first external electrodes configured to generate an acoustic signal from an electrical signal or vice versa, and at least one second external electrode, wherein the second external electrode is separately controllable from the first external electrodes in order to set electro-acoustic properties of the sound transducer.

公开(公告)号：US20210352413A1

公开(公告)日：2021-11-11

申请号：US17286383

申请日：2019-10-22

Applicant: TDK Electronics AG

Inventor： Michael Gebhart ,  Peter Lukan ,  Michael Krenn

IPC: H04R17/10

Abstract: A sound transducer and a method for operating a sound transducer are disclosed. In an embodiment a sound transducer includes a first piezoelectric element having first external electrodes configured to generate an acoustic signal from an electrical signal or vice versa, and at least one second external electrode, wherein the second external electrode is separately controllable from the first external electrodes in order to set electro-acoustic properties of the sound transducer.

公开(公告)号：US20210185766A1

公开(公告)日：2021-06-17

申请号：US17056952

申请日：2019-05-24

Applicant: TDK Electronics AG

Inventor： Michael Krenn ,  Iwan Hadi ,  Torben Halfer ,  Huinan Xie

IPC: H05B3/14 ,  H05B3/24

Abstract: A heating module is disclosed. In an embodiment a heating module includes at least one positive temperature coefficient (PTC) element configured to operate at an operating point between 120° C. and 300° C. inclusive.

公开(公告)号：US12177986B2

公开(公告)日：2024-12-24

申请号：US17637725

申请日：2020-10-12

Applicant: TDK Electronics AG

Inventor： Jan Ihle ,  Thomas Bernert ,  Stefan Endler ,  Michael Krenn ,  Stephan Bigl ,  Markus Puff ,  Sebastian Redolfi

IPC: H05K3/30 ,  H01C7/02 ,  H01G2/06 ,  H05K1/18 ,  H05K3/34

Abstract: In an embodiment a component includes at least one carrier layer, the carrier layer having a top side and a bottom side and at least one functional layer arranged on the top side of the carrier layer, the functional layer including a material having a specific electrical characteristic, wherein the component is configured for direct integration into an electrical system as a discrete component.