公开(公告)号：US20210104884A1

公开(公告)日：2021-04-08

申请号：US17035875

申请日：2020-09-29

Applicant: SMART ELECTRONICS INC.

Inventor： Doo Won KANG ,  A Lam SHIN

IPC: H02H5/04 ,  H01C7/04 ,  H01H85/165

Abstract: Disclosed is a circuit protection device including a case, a negative temperature coefficient thermistor accommodated in the case and including a resistant heating element, a pair of electrodes installed on both sides of the resistant heating element, and a first thermistor lead wire and a second thermistor lead wire withdrawn from the pair of electrodes, respectively, and a fuse accommodated in the case and including a fuse body and a first fuse lead wire and a second fuse lead wire connected to both ends of the fuse body, respectively. Here, the fuse body includes a fuse rod with a plating layer formed thereon and a pair of fuse caps coupled to both ends of the fuse rod and having conductivity, and the first fuse lead wire and the second fuse lead wire are bonded to the pair of fuse caps, respectively.

公开(公告)号：US20210090838A1

公开(公告)日：2021-03-25

申请号：US17015150

申请日：2020-09-09

Applicant: SMART ELECTRONICS INC.

Inventor： Doo Won KANG ,  A Lam SHIN

IPC: H01H85/143 ,  H01C7/04 ,  H01H85/165

Abstract: Disclosed is a circuit protection device including a case, a first negative temperature coefficient thermistor which is accommodated in the case and includes a first resistant heating element, a pair of electrodes installed on both sides of the first resistant heating element, and a first lead wire and a second lead wire withdrawn from the pair of electrodes, respectively, a thermal fuse which is accommodated in the case and includes a thermal fuse body and a third lead wire and a fourth lead wire connected to both ends of the thermal fuse body, respectively, and a second negative temperature coefficient thermistor which is accommodated in the case and includes a second resistant heating element, a pair of electrodes installed on both sides of the second resistant heating element, and a fifth lead wire and a sixth lead wire withdrawn from the pair of electrodes, respectively.

公开(公告)号：US20210082652A1

公开(公告)日：2021-03-18

申请号：US17016491

申请日：2020-09-10

Applicant: SMART ELECTRONICS INC.

Inventor： Doo Won KANG ,  A Lam SHIN

IPC: H01H85/055 ,  H01H85/165 ,  H01H85/143 ,  H01C7/04 ,  H01H85/02

Abstract: Disclosed is a circuit protection device including a case, a negative temperature coefficient thermistor which is accommodated in the case and includes a resistant heating element, a pair of electrodes installed on both sides of the resistant heating element, and a first lead wire and a second lead wire withdrawn from the pair of electrodes, respectively, and a thermal fuse which is accommodated in the case and includes a thermal fuse body and a third lead wire and a fourth lead wire connected to both ends of the thermal fuse body, respectively. Here, the second lead wire and the third lead wire are connected to each other in the case.

公开(公告)号：US20180047539A1

公开(公告)日：2018-02-15

申请号：US15233586

申请日：2016-08-10

Applicant: SMART ELECTRONICS INC.

Inventor： Doo Won KANG ,  Hyun Chang KIM ,  Hwang Je MUN ,  A Lam SHIN

IPC: H01H85/048 ,  H01H85/18 ,  H01H85/00 ,  H01H85/165 ,  H01C1/14 ,  H01C3/20

CPC classification number: H01H85/048 ,  H01C1/028 ,  H01C1/14 ,  H01C1/144 ,  H01C3/20 ,  H01C17/02 ,  H01H85/0047 ,  H01H85/143 ,  H01H85/165 ,  H01H85/18

Abstract: Provided are a fuse resistor and a method of manufacturing the same, more particularly, are a fuse resistor mounted at an electric circuit of an electronic product to prevent the electronic product from breaking down due to inrush current, increase of internal temperature, and continuous overcurrent, and a method of manufacturing the same. The fuse resistor is capable of simplifying an assembly process by coupling a thermal fuse and a lead wire in a modularized manner and by fixing a fusing lead wire to the lead wire in an integrated manner to form a lower molding unit, and a method of manufacturing the same. The fuse resistor has a simple structure and is capable of being miniaturized as an integrated structure of the thermal fuse and the lead wire is inserted, and a method of manufacturing the same.

公开(公告)号：US09589711B2

公开(公告)日：2017-03-07

申请号：US14441840

申请日：2013-11-07

Applicant: SMART ELECTRONICS INC.

Inventor： Jong il Jung ,  Doo Won Kang ,  Gyu Jin Ahn ,  Sang Joon Jin ,  Hyun Chang Kim ,  Kyung Mi Lee

IPC: H01C1/02 ,  H01C1/024 ,  H01C1/014 ,  H01C1/08 ,  H01C1/144 ,  H01C17/02 ,  B23K1/00 ,  B23K1/19 ,  B23K35/02 ,  B23K35/30 ,  H01C1/026 ,  H01C17/28 ,  H01H85/048

CPC classification number: H01C1/024 ,  B23K1/0016 ,  B23K1/19 ,  B23K35/0222 ,  B23K35/3006 ,  H01C1/014 ,  H01C1/026 ,  H01C1/08 ,  H01C1/144 ,  H01C17/02 ,  H01C17/28 ,  H01H85/048

Abstract: A resistor and a manufacturing method thereof are disclosed. Since a ceramic tube formed of a ceramic material is used and the ceramic tube is joined to sealing electrodes by use of brazing rings, joining strength and durability of the resistor are considerably improved. The resistor may be stably used at a high voltage due to excellent heat dissipation characteristics thereof.

Abstract translation: 公开了一种电阻器及其制造方法。 由于使用由陶瓷材料形成的陶瓷管，并且通过使用钎焊环将陶瓷管接合到密封电极，所以电阻器的接合强度和耐久性显着提高。 由于其优异的散热特性，电阻器可以在高电压下稳定地使用。

公开(公告)号：US20150249332A1

公开(公告)日：2015-09-03

申请号：US14632922

申请日：2015-02-26

Applicant: SMART ELECTRONICS INC.

Inventor： Doo Won KANG ,  Hyun Chang KIM ,  Kwang Beom KIM ,  Saeng Soo YUN ,  Hyuk Jae KWON

IPC: H02H9/04

CPC classification number: H02H9/044

Abstract: Disclosed is a complex protection device including a substrate, fuse terminals provided on the substrate, first resistive terminals provided on the substrate so as to be separated from the fuse terminals, second resistive terminals provided on the substrate opposite to the first resistive terminals across the fuse terminals, a fusible element connected to the fuse terminals, a first surface-mounted resistive element connected to the first resistive terminals, a second surface-mounted resistive element connected to the second resistive terminals, at least one printed resistive element connected to at least one of the first resistive terminals and the second resistive terminals and connected to at least one of the first surface-mounted resistive element and the second surface-mounted resistive element, and a switching element controlling flow of current to the first and second surface-mounted resistive elements and the at least one printed resistive element if overvoltage is applied.

Abstract translation: 公开了一种复合保护装置，包括基板，设置在基板上的熔丝端子，设置在基板上的第一电阻端子，以与熔丝端子分离;第二电阻端子，设置在与第一电阻端子相反的基板上， 端子，连接到熔丝端子的可熔元件，连接到第一电阻端子的第一表面安装电阻元件，连接到第二电阻端子的第二表面安装电阻元件，连接到至少一个的至少一个印刷电阻元件 的第一电阻端子和第二电阻端子，并且连接到第一表面安装电阻元件和第二表面安装电阻元件中的至少一个，以及控制流到第一和第二表面安装电阻器的电流的开关元件 元件和至少一个印刷电阻元件，如果施加过电压。

公开(公告)号：USD933025S1

公开(公告)日：2021-10-12

申请号：US29727647

申请日：2020-03-12

Applicant: SMART ELECTRONICS INC.

Designer： Doo Won Kang ,  A Lam Shin

公开(公告)号：US11005235B2

公开(公告)日：2021-05-11

申请号：US15755417

申请日：2016-08-10

Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION ,  SMART ELECTRONICS INC.

Inventor： Chang-Koo Kim ,  Hae-Min Lee ,  Doo Won Kang ,  Hyun Chang Kim

IPC: H01T4/02 ,  H01T21/00 ,  H01T4/12 ,  C23C18/50 ,  C23C18/18 ,  C23C18/16 ,  C23C18/36 ,  H01C1/024 ,  H01C1/026

Abstract: A method for manufacturing a surge absorbing device is provided. The method includes providing an elongate ceramic tube having a hollow space defined therein and having open and opposite first and second end; forming a first plating layer and a second plating layer on the first end and the second end, respectively; placing a surge absorbing element within the hollow space within the ceramic tube; disposing first and second brazing rings on the first plating layer and the second plating layer, respectively; disposing first and second sealing electrodes on the first and second brazing rings respectively; and melting the first and second brazing rings in an inert gas atmosphere to attach the first and second sealing electrodes onto the first plating layer and the second plating layer, respectively.

公开(公告)号：US09735551B2

公开(公告)日：2017-08-15

申请号：US14441838

申请日：2013-11-11

Applicant: SMART ELECTRONICS INC.

Inventor： Jong il Jung ,  Doo Won Kang ,  Gyu Jin Ahn ,  Sang Joon Jin ,  Hyun Chang Kim ,  Kyung Mi Lee ,  Dong Ho Jeon ,  Dong Jin Kang

IPC: H01T4/02 ,  H01T4/04 ,  H01T4/12 ,  H01T21/00

CPC classification number: H01T4/02 ,  H01T4/04 ,  H01T4/12 ,  H01T21/00

Abstract: A surge absorber and a manufacturing method thereof are disclosed. Since a ceramic material with excellent mechanical strength is used to form a ceramic tube and the ceramic tube is joined to sealing electrodes by use of brazing rings according to the method of manufacturing the surge absorber, durability of the surge absorber is considerably improved. Since the ceramic tube is completely sealed, the surge absorber may be stably used at a high voltage.

公开(公告)号：US09697969B2

公开(公告)日：2017-07-04

申请号：US14656065

申请日：2015-03-12

Applicant: SMART ELECTRONICS INC.

Inventor： Doo Won Kang ,  Hyun Chang Kim ,  Hwang Je Mun ,  A Lam Shin

IPC: H01H37/04 ,  H01H37/32 ,  H01C7/13 ,  H01H37/76 ,  H01H85/041

CPC classification number: H01H37/04 ,  H01C7/13 ,  H01H37/761 ,  H01H85/0418 ,  H01H2037/046

Abstract: 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.