公开(公告)号：US12125619B2

公开(公告)日：2024-10-22

申请号：US17181527

申请日：2021-02-22

申请人： Littelfuse, Inc.

发明人： Efrem Fesshaie ,  Paulius Kabisius ,  Jianhua Chen ,  Rimantas Misevicius

IPC分类号： H01C7/02 ,  H05B3/00

CPC分类号： H01C7/021 ,  H05B3/0014 ,  H05B2203/02 ,  H05B2203/035

摘要： A self-limiting heater and method for building the self-limiting heater are disclosed. The self-limiting heater consists of a resistor and a PTC resistor coupled together in series with a power supply. Both resistive devices have good thermal coupling. The resistor has a minimal resistance change over changes in temperature while the resistance of the PTC resistor increases with an increase in temperature. The ohmic resistance ratio between the resistor and the PTC may be used to adjust the heater characteristics and limit the characteristic sharpness.

公开(公告)号：US20240292495A1

公开(公告)日：2024-08-29

申请号：US18656964

申请日：2024-05-07

申请人： Frio, LLC

发明人： Travis M. Kuster ,  Connor J. Tinen ,  Alexander F. Brown ,  Robert J. Nikolai

IPC分类号： H05B1/02 ,  G01K7/16 ,  H05B3/00

CPC分类号： H05B1/0294 ,  G01K7/16 ,  H05B3/0014 ,  H05B2203/019 ,  H05B2203/02

摘要： The present invention involves calibrating a control system to enable resistance-based control of a heat tracing circuit, that includes characterizing a piece of heat trace to determine a relationship between resistance and temperature, allowing for more precise control. Also described are different methods for practical resistance-based control of a heat trace system. Further described are several methods to monitor heat trace: including methods to enhance monitoring capabilities using a system operating model; comparison to historical operating data; and inclusion of information from external sources. Also provided is a method by which a piece of heat trace of unknown length and power factor can be controlled using the resistance-based method when other system information is available.

公开(公告)号：US12072123B2

公开(公告)日：2024-08-27

申请号：US16970509

申请日：2019-02-11

申请人： Valeo Systemes Thermiques

发明人： Frèdèric Pierron ,  Serif Karaaslan ,  Pascal Fourgous ,  Yann Couapel ,  Romain Delcourt ,  Laurent Tellier

IPC分类号： F24H3/04 ,  B60H1/22 ,  F24H9/1863

CPC分类号： F24H3/0458 ,  B60H1/2225 ,  F24H9/1872 ,  H05B2203/02 ,  H05B2203/023

摘要： The invention relates to a frame (3) for an electric heating device (1), comprising at least one housing (7) intended to receive a heating element (5), said housing being defined by a plurality of longitudinal walls (23, 25) forming an insertion path for a heating element, and said insertion path being defined longitudinally by a back wall extending opposite an opening through which the heating element can be inserted into the housing. According to the invention, at least one of the longitudinal walls comprises a displacement reducing element (10) projecting from the wall. The displacement reducing element (10) comprises a ramp (11) that slopes gradually into the housing, towards the opposite longitudinal wall, said displacement reducing element (10) being arranged such that the downstream end (14, 15) thereof extends at a distance from the back wall (21).

公开(公告)号：US12048068B2

公开(公告)日：2024-07-23

申请号：US17424578

申请日：2020-01-20

申请人： AMOGREENTECH CO., LTD.

发明人： Jeong Hwan Kim ,  Won San Na ,  Jin Pyo Park ,  Jae Yeong Lee ,  Hyun Chul Lim

IPC分类号： H05B1/02 ,  H05B3/20

CPC分类号： H05B1/0205 ,  H05B1/0236 ,  H05B3/20 ,  H05B2203/02

摘要： Provided is a heating element having a fuse function. The heating element having a fuse function according to an exemplary embodiment of the present invention includes a plurality of heat sources which generate heat when power is applied, a fuse member of which both end portions are physically connected to two heat sources disposed to be spaced apart from each other by a gap to connect the two heat sources in series and which is fused to electrically disconnect the two heat sources when a temperature is higher than or equal to a preset temperature, and an insulating member which surrounds the plurality of heat sources and the fuse member.

公开(公告)号：US20240237152A9

公开(公告)日：2024-07-11

申请号：US18381900

申请日：2023-10-19

申请人： Eberspächer catem GmbH & Co. KG

发明人： Timo Kröner ,  Patrick Werner ,  Daniele Dattilo

IPC分类号： H05B3/26 ,  B23K20/00 ,  B23K20/10 ,  F24H9/1863

CPC分类号： H05B3/267 ,  B23K20/002 ,  B23K20/10 ,  F24H9/1872 ,  F24H2250/04 ,  H05B2203/016 ,  H05B2203/017 ,  H05B2203/02

摘要： A PTC heating device has a frame surrounding an accommodation space, at least one PTC element accommodated in the accommodation space, and conductor elements, which are connected to the PTC element in an electrically conductive manner and enclose the PTC element between them. Each of the conductor elements is surrounded by a frame segment. The frame segments are welded together to enclose the PTC element in the accommodation space. In the method according to the invention, injection molded plastic frame segments having interacting connection segments are connected to conductor elements. At least one PTC element is then introduced between the frame segments. The frame segments are approached to each other until the connection segments abut against each other. The connection segments are then melted. As a result of this melting, the frame segments are approached further to each other until the conductor elements abut against the PTC element.

公开(公告)号：US20240208127A1

公开(公告)日：2024-06-27

申请号：US18541192

申请日：2023-12-15

申请人： PUKYONG NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION

发明人： Hansang Kwon

IPC分类号： B29C48/00 ,  B29C48/05 ,  H05B3/14 ,  B29K27/18 ,  B29K507/04 ,  B29L31/00

CPC分类号： B29C48/022 ,  B29C48/05 ,  H05B3/145 ,  H05B3/146 ,  B29K2027/18 ,  B29K2507/04 ,  B29L2031/779 ,  H05B2203/017 ,  H05B2203/02

摘要： Proposed is a method of manufacturing a PTC heating element, the method including: (a) preparing a mixed powder of a polymer powder and a carbon nanotube-containing powder, (b) forming the mixed powder into a pellet-shaped body, and (c) extruding the pellet-shaped body to produce a wire-type heating element. A PTC heating element manufactured by the method is also proposed. The PTC heating element manufactured by the method has better thermal conductivity than existing PTC heating elements, so that the PTC heating element exhibits a quick temperature rise within a short time, resulting in a reduction in power consumption. In particular, when the PTC heating element is used as a heating element for car seat heaters and steering wheel heaters in electric vehicles, battery consumption may be dramatically reduced, contributing to an increase in the driving mileage of the electric vehicles.

公开(公告)号：US20240133587A1

公开(公告)日：2024-04-25

申请号：US18546555

申请日：2022-02-14

申请人： TDK Electronics AG

发明人： Markus Koini ,  Michael Krenn ,  Markus Puff ,  Stephan Bigl

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

CPC分类号： F24H3/0447 ,  F24H9/1872 ,  H05B3/265 ,  H05B3/267 ,  F24H2250/04 ,  H05B2203/02

摘要： 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：US20240132022A1

公开(公告)日：2024-04-25

申请号：US18546889

申请日：2022-01-31

申请人： Bayerische Motoren Werke Aktiengesellschaft

发明人： Maximilian BEITELSCHMIDT ,  Tobias BIALETZKI

IPC分类号： B60S1/52 ,  B60S1/48 ,  H05B3/56

CPC分类号： B60S1/52 ,  B60S1/488 ,  H05B3/56 ,  H05B2203/02

摘要： A nozzle system for cleaning a vehicle part of a motor vehicle includes a nozzle body having a nozzle for applying a cleaning liquid to the vehicle part. A fluid line arrangement is configured for connection to a fluid-based cleaning system of the motor vehicle in order to conduct the cleaning liquid to the nozzle body. An electrically conducting heating wire runs through the fluid line arrangement and through the nozzle body. The heating wire has a first portion with a first cross section and a second portion with a second cross section where the first cross section is larger than the second cross section.

公开(公告)号：US20240053024A1

公开(公告)日：2024-02-15

申请号：US17819632

申请日：2022-08-14

申请人： Barry Lynn Butler ,  Brett Louis Butler

发明人： Barry Lynn Butler ,  Brett Louis Butler

IPC分类号： F24C7/08 ,  H05B1/02 ,  H02S10/20 ,  H02J3/38 ,  H02J7/35 ,  H02J7/00

CPC分类号： F24C7/082 ,  H05B1/0261 ,  H02S10/20 ,  H02J3/381 ,  H02J7/35 ,  H02J7/00302 ,  H05B2203/02 ,  H02J2300/26

摘要： A Photovoltaic powered cooking system comprised of a small solar panel array 500-1,000 Watts, a charge controller for a battery capable of storing electric power and delivering it day or night for cooking using a low voltage 12-48 VDC, low power, 500 W heater configured as a hot plate or oven capable of 240° C. to boil, bake or fry food. The heater is comprised of multiple standard resistive or positive temperature coefficient heating elements or both combined to be energy efficient and can cook and then be controlled to keep food warm. No combustible fuel needed.

公开(公告)号：US11903101B2

公开(公告)日：2024-02-13

申请号：US16713442

申请日：2019-12-13

申请人： GOODRICH CORPORATION

发明人： Nathaniel Ching ,  Jin Hu ,  Casey Slane

IPC分类号： H05B3/14 ,  H05B3/44

CPC分类号： H05B3/44 ,  H05B3/141 ,  H05B2203/02 ,  H05B2203/021

摘要： An internal heating trace assembly may include a first bus bar, a second bus bar, a plurality of ceramic positive temperature coefficient (PTC) elements, and an insulator. The ceramic PTC elements may be disposed in parallel between the first bus bar and the second bus bar. The insulator may include a heat-shrink tubing. The ceramic PTC element may include a PTC strip or a PTC bead.