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公开(公告)号：US10777340B2
公开(公告)日：2020-09-15
申请号：US16128204
申请日：2018-09-11
申请人： Littelfuse, Inc.
发明人： Jianhua Chen , Chun Kwan Tsang
IPC分类号： H01C7/02 , H01B1/02 , C08L23/08 , C08L23/06 , C08K3/04 , C08K3/14 , C08K3/38 , C08L27/16 , H01C1/14 , H01C17/065
摘要： A polymeric positive temperature coefficient (PPTC) device including a PPTC body, a first electrode disposed on a first side of the PPTC body, and a second electrode disposed on a second side of the PPTC body, wherein the PPTC body is formed of a PPTC material that includes a maximum of 65% by volume of a conductive filler, wherein 10%-39% by volume of the PPTC material is a conductive ceramic filler and wherein the rest of the conductive filler includes at least one of carbon and a metallic filler.
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公开(公告)号：US20200286652A1
公开(公告)日：2020-09-10
申请号：US16808835
申请日：2020-03-04
摘要： A PTC heating element and an electric heating device containing such a PTC heating element are disclosed. The PTC heating element comprises two insulating layers with a metallic coating provided on one side and a PTC element arranged therebetween which is provided on oppositely disposed main side surfaces with a respective metallization which is electrically conductively connected to the coating of one of the insulating layers. The metallization provided on one of the main side surfaces is assigned only to one potential for energizing the PTC element. The metallization provided on the other main side surface is assigned to only the other potential for energizing the PTC element. The metallization of the one main side surface of the PTC element and the metallization of the other main side surface of the PTC element are formed in such a way that the current path (P) through the PTC element is extended relative to the thickness (D) of the PTC element.
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公开(公告)号：US20200273609A1
公开(公告)日：2020-08-27
申请号：US16589704
申请日：2019-10-01
摘要： An over-current protection device is a hexahedron comprising an upper surface, a lower surface and four lateral surfaces. The over-current protection device comprises a PTC device, a first insulating layer, a first electrode layer and a second electrode layer. The PTC device comprises a first conductive layer, a second conductive layer and a PTC material layer laminated therebetween. The first conductive layer comprises a first conductive section and a second conductive section separated by at least one trench. The first insulating layer is disposed on the first conductive layer. The first electrode layer is disposed on the first insulating layer and electrically coupled to the first conductive section. The second electrode layer is disposed on the first insulating layer and electrically coupled to the second conductive section. The trench comprises a primary portion not parallel to a longitudinal direction of the first and second electrode layers.
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公开(公告)号：US20200236738A1
公开(公告)日：2020-07-23
申请号：US16838060
申请日：2020-04-02
发明人： Klaus Heubach , Timo Schmitt , Benjamin Niestroj
摘要： A personal consumer product having an energy emitting element in selective electrical communication with a power source is provided. Thermal control circuitry is used to isolate the energy emitting element from the power source when a temperature of the energy emitting element exceeds a threshold. The thermal control circuitry includes a primary thermal control circuit and a redundant thermal control circuit. Methods for controlling the temperature of an energy emitting element of a personal consumer product are also provided.
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公开(公告)号：US20200035385A1
公开(公告)日：2020-01-30
申请号：US16484359
申请日：2018-02-07
申请人： GEBR. KRALLMANN GMBH
发明人： Ingo BREXELER
摘要： A heating and/or cooling device for a solid or for a fluid stream includes a carrier part formed of plastic, in which an electrical heating and/or cooling element is embedded and held. A metallic distributor element is in contact with the heating and/or cooling element. At least one terminal contact and an electrical strip conductor, which connects the terminal contact to the heating and/or cooling element, are provided. The heating and/or cooling element are prefabricated and are connected to the carrier part formed of plastic by an injection molding process. Electrical strip conductors are prepared for connecting the heating and cooling element by a metal injection molding process or metal casting process.
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公开(公告)号：US10527501B2
公开(公告)日：2020-01-07
申请号：US15760229
申请日：2016-09-09
申请人： SEMITEC Corporation
发明人： Takafumi Matsushita
摘要： A resistor which is able to have a reduced thickness for an insulating substrate and in which occurrence of cracking is able to be suppressed during production of the insulating substrate, the production of the resistor and mounting of the substrate, and in which the safety of a medical device is increased by forming the insulating substrate using a biocompatible material; and a temperature sensor are provided. This resistor is provided with: an insulating substrate that has a bending strength of 690 MPa or more and a thickness of 10 to 100 μm; a resistive film that is formed on the insulating substrate; at least a pair of electrode layers, that are electrically connected to the resistive film; and a protective film that covers a region where the resistive film is formed, while forming exposure portions so that at least parts of the electrode layers are exposed therein.
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公开(公告)号：US10483061B2
公开(公告)日：2019-11-19
申请号：US14901987
申请日：2014-07-01
摘要： A protection device including: (i) a protection component having a first thermal fuse and a resistive body, the resistive body being supplied with a current in an abnormal state to generate heat, the heat activating the first thermal fuse to cut off the current; (ii) a PTC component; and (iii) a second thermal fuse, the second thermal fuse being electrically connected in series to the PTC component, the first thermal fuse of the protection component being electrically connected in parallel to the PTC component and to the second thermal fuse, and the protection component being activated in the abnormal state so that the PTC component trips to generate heat, the heat blowing the second thermal fuse.
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公开(公告)号：US10450490B2
公开(公告)日：2019-10-22
申请号：US15557420
申请日：2016-03-11
发明人： Olivier Lhost , Dimitri Rousseaux
IPC分类号： H01B1/24 , C09K5/14 , C08J3/22 , C08K3/04 , H01C7/02 , H01C17/065 , C08L23/06 , C08L25/06 , H01C7/00 , H01C17/00 , B29C48/00 , B29C48/78 , B29C67/24 , B29K25/00 , B29K105/00 , B29K105/16 , B29K507/04 , B82Y30/00 , B82Y40/00
摘要： The present invention relates to an article suitable to act as a thermal switch device, the article having a surface resistance of more than 105 ohms and formed from a polymer composition comprising from 50 to 99.9 wt % relative to the total weight of the polymer composition, of a polymer being selected from an amorphous polymer having a glass transition temperature Tg, a semi-crystalline polymer having a melting temperature Tm or a mixture thereof, and from 0.1 to 50 wt % relative to the total weight of the polymer composition, of a conductive material, wherein the surface resistance of the article is divided by at least 10, preferably by at least 100, when said article is submitted for a determined period of time of less than 5 minutes to a temperature of switch i) ranging from Tg+10° C. to Tg+250° C. if the polymer composition comprises an amorphous polymer, or ii) ranging from Tm−80° C. to Tm+250° C. if the polymer composition comprises a semi-crystalline polymer.
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公开(公告)号：US20190311824A1
公开(公告)日：2019-10-10
申请号：US16377859
申请日：2019-04-08
发明人： Michael Kohl , Falk Viehrig , Denis Wiedmann
摘要： A PTC thermistor module for a temperature control device may include at least one PTC thermistor element. The PTC thermistor element may include an upper side and an underside facing away from the upper side. The upper side and on the underside may be respectively applied in a heat-exchanging manner with a heat-conducting plate. An edge side, connecting the upper side and the underside with one another in an edge-side manner, of at least one of the PTC thermistor elements, may be applied to a heat-conducting element, which has a thermal conductivity of at least 5 W/mK. A temperature control device may include at least one such PTC thermistor module.
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公开(公告)号：US10418158B1
公开(公告)日：2019-09-17
申请号：US15964877
申请日：2018-04-27
摘要： A composite circuit protection device includes a polymer positive temperature coefficient (PPTC) component, a voltage-dependent resistor, a first conductive lead and a second conductive lead. The PPTC component is formed with a hole and includes a positive temperature coefficient (PTC) polymeric layer, and first and second electrode layers respectively disposed on two opposite surfaces of the PTC polymeric layer. The hole is formed in the PTC polymeric layer. The voltage-dependent resistor is connected to the second electrode layer of the PPTC component. The first and second conductive leads are respectively bonded to the first electrode layer of the PPTC component and the voltage-dependent resistor.
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