Patents Assigned to Smart Electronics Inc.
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Publication number: 20240388044Abstract: A high current terminal for electronic circuit protection includes: a first sectional terminal into which a current flows from the outside; a second sectional terminal transmitting a current flowing inside through the first terminal to the outside; and an element coupled between the first sectional terminal and the second sectional terminal, wherein the element disconnects the first sectional terminal and the second sectional terminal by melting when a current exceeding a preset condition flows inside through the first sectional terminal, and is formed to have a thickness that is equal to or less than thicknesses of the first sectional terminal and the second sectional terminal.Type: ApplicationFiled: May 13, 2024Publication date: November 21, 2024Applicant: SMART Electronics IncInventors: Sang Joon JIN, Dong Ho JEON, Saeng Soo YUN
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Patent number: 9697969Abstract: Disclosed is a fuse resistor provided on an electrical circuit to protect the electrical circuit and elements. The fuse resistor includes a substrate on which first and second resistive terminals and fuse terminals are formed, first and second resistive elements surface-mounted on the first and second resistive terminals and dividing applied current or voltage, and a temperature fuse surface-mounted on the fuse terminals and broken by heat generated from the first and second resistive elements. If overcurrent or overvoltage is applied, the first and second resistive elements generate heat and the temperature fuse is broken by the generated heat.Type: GrantFiled: March 12, 2015Date of Patent: July 4, 2017Assignee: Smart Electronics Inc.Inventors: Doo Won Kang, Hyun Chang Kim, Hwang Je Mun, A Lam Shin
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Patent number: 8400252Abstract: Disclosed is a fuse resistor representing superior manufacturing efficiency and assembling reliability. The fuse resistor includes a resistor, a thermal fuse that is disconnected by heat generated from the resistor, and a case receiving the resistor and the thermal fuse therein and having a space section for transferring radiant heat of the resistor to the thermal fuse. Fillers are not required so that the manufacturing process is simplified. Since the assembling process is completed by covering a body of the case with a cap after the resistor and the thermal fuse have been inserted into the body, the manufacturing efficiency is improved.Type: GrantFiled: April 21, 2010Date of Patent: March 19, 2013Assignee: Smart Electronics Inc.Inventors: Jong Il Jung, Doo Won Kang, Gyu Jin Ahn, Sung Kwang Kim, Kyung Mi Lee
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Patent number: 8400253Abstract: Disclosed are a thermal fuse resistor having a case injection-molded by using thermosetting resin having heat resistance less than that of a filler, a manufacturing method of the thermal fuse resistor, and a method of installing the thermal fuse resistor such that a resistor and a thermal fuse are laid down on a printed circuit board. In the thermal fuse resistor, through changing a material of the case, the case has a lighter weight and is not easily broken, so that the thermal fuse resistor is advantageously used for an electronic appliance because of its lightness and slimness. The thickness of the case of the thermal fuse resistor serves as the thickness of the electronic appliance employing the thermal fuse resistor, so that the thermal fuse resistor allows the electronic appliance to have a slim structure.Type: GrantFiled: April 21, 2010Date of Patent: March 19, 2013Assignee: Smart Electronics Inc.Inventors: Jong II Jung, Doo Won Kang, Gyu Jin Ahn, Sung Kwang Kim, Kyung Mi Lee
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Publication number: 20120038450Abstract: Disclosed is a fuse resistor representing superior manufacturing efficiency and assembling reliability. The fuse resistor includes a resistor, a thermal fuse that is disconnected by heat generated from the resistor, and a case receiving the resistor and the thermal fuse therein and having a space section for transferring radiant heat of the resistor to the thermal fuse. Fillers are not required so that the manufacturing process is simplified. Since the assembling process is completed by covering a body of the case with a cap after the resistor and the thermal fuse have been inserted into the body, the manufacturing efficiency is improved.Type: ApplicationFiled: April 21, 2010Publication date: February 16, 2012Applicant: Smart Electronics Inc.Inventors: Jong Il Jung, Doo Won Kang, Gyu Jin Ahn, Sung Kwang Kim, Kyung Mi Lee
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Patent number: 7221253Abstract: A fusible resistor and method of fabricating the same is provided. The fusible resistor has a very low resistance of 20 to 470 m?. by depositing thin films as a fusible element made of a material with low resistivity such as copper having a temperature coefficient of over 2,000 ppm/° C. The fusible resistor comprises a resistor body, a fusible element layer formed to surround the resistor body, caps formed to surround ends of the fusible element layer, lead wires attached to the caps, and an insulating layer for insulating the fusible element layer and the caps from outside. The thus-fabricated fusible resistor performs all functions of a use without generating excessive heat.Type: GrantFiled: July 9, 2002Date of Patent: May 22, 2007Assignee: Smart Electronics Inc.Inventors: Young Sun Kim, Doo Won Kang, Gyu Jin Ahn, Jin Seok Noh