-
公开(公告)号：US20230037990A1
公开(公告)日：2023-02-09
申请号：US17395757
申请日：2021-08-06
申请人： Littelfuse, Inc.
发明人： Robert Olszewski , Jeremy Huang
IPC分类号： H01H85/055 , H01H85/165
摘要： Provided herein is a fuse assembly including an anti-rotation device. In some embodiments, the fuse assembly may include a fusible device connected to a conductive component, wherein the conductive component is operable to connect to a terminal of a power source and a securement device coupled to the fusible device. The securement device may include a body including a recess operable to receive the fusible device and a support post extending from the body, wherein the support post is operable to engage the power source to reduce rotation of the securement device and the fusible device relative to the power source.
-
公开(公告)号：US20230037262A1
公开(公告)日：2023-02-02
申请号：US17779007
申请日：2020-11-13
申请人： Littelfuse, Inc.
IPC分类号： H01C7/02 , H01C1/14 , H01C1/08 , H01H85/048 , H01H85/02
摘要： A circuit protection device including a positive temperature coefficient (PTC) device and a backup fuse electrically connected in series with one another, the backup fuse comprising a quantity of solder disposed on a dielectric chip and having a melting temperature that is higher than a trip temperature of the PTC device, wherein the a surface of the dielectric chip exhibits a de-wetting characteristic relative to the solder such that, when the solder is melted, the solder draws away from the surface to create a galvanic opening in the backup fuse.
-
3.发明申请公开(公告)号：US20220359144A1
公开(公告)日：2022-11-10
申请号：US17530038
申请日：2021-11-18
申请人： Littelfuse, Inc.
IPC分类号： H01H85/143 , H01H85/165
摘要： A novel fuse assembly design utilizes a fuse body, single-piece terminal assembly and a two-piece endbells. The terminal assembly is disposed within the fuse body and includes first and second opposing surfaces with a fuse element extending between a first terminal and a second terminal. The endbell, to be connected to the fuse body, includes first and second endbell portions. Formed within the first endbell portion is a first receptacle and extending from the first endbell portion is a first protrusion. Formed within the second endbell portion is a second receptacle and extending from the second endbell portion is a second protrusion. When the two endbell portions are fastened to one another with the terminal assembly sandwiched between them, the first protrusion engages the second receptacle and the second protrusion engages the first receptacle.
-
公开(公告)号：US20220311177A1
公开(公告)日：2022-09-29
申请号：US17210998
申请日：2021-03-24
申请人： Littelfuse, Inc.
IPC分类号： H01R13/52
摘要： A novel busbar, suitable for low-power applications, features a u-shaped extension having a male terminal that fits into and establishes electrical connection with a standard female terminal. The housing of an electrical box including the busbar is modified to receive the female terminal in such a way that Ingress Protection ratings of IP67 and IP69K are maintained within the electrical box. The busbar is not riveted to a thicker busbar terminating with a stud and lug nut, as in legacy configurations, thus being simpler and cheaper to manufacture. The female terminal, once connected to the busbar, is removable by inserting a tool into a dedicated opening within the housing.
-
公开(公告)号：US20220262549A1
公开(公告)日：2022-08-18
申请号：US17176649
申请日：2021-02-16
申请人： Littelfuse, Inc.
发明人： Jianhua Chen , Rimantas Radzys
IPC分类号： H01C7/02 , H01C1/14 , H01C17/065 , H01B1/04
摘要： A novel heater is disclosed for a temperature sensitive actuator. The heater is a polymeric positive temperature coefficient (PPTC) device consisting of conductive filler and semi-crystalline polymer. The PPTC heater is strategically designed to have a predetermined self-regulation temperature suited to whatever application utilizes the heater. Physical characteristics of the PPTC heater, such as gap width and thickness, enable the current flow through the heater to be strategically controlled.
-
公开(公告)号：US11417490B2
公开(公告)日：2022-08-16
申请号：US16691092
申请日：2019-11-21
申请人： Littelfuse, Inc.
发明人： Davide Mantoan , Massimiliano Tinto
IPC分类号： H01H85/175 , H01H85/143 , H01H85/20 , H01M50/581
摘要： A fuse module including a mounting block having a through-hole extending therethrough, a fuse including an upper portion disposed on a top of the mounting block and having a through-hole, a lower portion disposed on a bottom of the mounting block and having a through-hole, and a fusible element disposed adjacent a sidewall of the mounting block and connecting the upper portion to the lower portion, the fuse module further including a housing having a main body portion encasing the mounting block and the fuse, the main body portion having apertures in top and bottom surfaces thereof aligned with the through-hole of the mounting block, and a cap portion connected to the main body portion and disposed over the fusible element, the cap portion having surface features extending from an interior surface thereof for absorbing energy upon occurrence of an overcurrent condition in the fuse.
-
公开(公告)号：US11355298B2
公开(公告)日：2022-06-07
申请号：US16197788
申请日：2018-11-21
申请人： Littelfuse, Inc.
IPC分类号： H01H69/02 , H01H85/20 , H01H85/041
摘要： A method of assembly of an open-cavity, wire-in-air fuse which provides improved manufacturing yield and fuse reliability, involving coiling, braiding or twisting a fusible element around a sacrificial member during the manufacturing process to provide support for the fusible element to prevent mechanical breakages and necking problems commonly encountered during manufacture.
-
公开(公告)号：US11349021B2
公开(公告)日：2022-05-31
申请号：US16827925
申请日：2020-03-24
申请人： Littelfuse, Inc.
发明人： Koichiro Yoshimoto
IPC分类号： H01L29/74 , H01L29/745 , H01L23/495 , H03K17/60 , H01L29/66 , H01L23/367 , H01L29/747
摘要： A power control switch assembly. The assembly may include a thyristor device, where the thyristor device includes a first device terminal, a second device terminal, and a gate terminal> The assembly may include a negative temperature coefficient (NTC) device, electrically coupled to the gate terminal of the thyristor device on a first end, and electrically coupled to the first device terminal of the thyristor device on a second end, wherein the NTC device is thermally coupled to the thyristor device.
-
公开(公告)号：US20220157548A1
公开(公告)日：2022-05-19
申请号：US17510742
申请日：2021-10-26
申请人： Littelfuse, Inc.
摘要： A fuse including a fuse body having a main body portion formed of a dielectric material, a plurality of arc chambers formed in the main body portion, the arc chambers arranged in a matrix configuration, a conductor extending through the main body portion and intersecting the arc chambers, the conductor having bridge portions disposed within the arc chambers, the bridge portions being mechanically weaker than other portions of the conductor and configured to melt and separate upon the occurrence of an overcurrent condition in the fuse.
-
公开(公告)号：US20220124876A1
公开(公告)日：2022-04-21
申请号：US17071260
申请日：2020-10-15
申请人： Littelfuse, Inc.
发明人： Efrem Fesshaie , Paulius Kabisius
摘要： A pPTC heating device having areas with different power densities distributed over the surface of the device. The device is constructed using a base layer composed of a pPTC material having a layer of sectioned conductive plates disposed over and under the layer of pPTC such as to control the path of the current through the device, thereby controlling resistance of the device and the power density of the device.
-
-
-
-
-
-
-
-
-
搜索结果
736 条记录 (耗时 0.033 秒)