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.
H01R 13/696 - Structural association with built-in electrical component with built-in fuse the fuse being integral with the terminal, e.g. pin or socket
H01H 85/08 - Fusible members characterised by the shape or form of the fusible member
The present invention relates to a current sensing device comprising: a bus bar including a plurality of low-resistance metal portions separated from each other with a resistance portion therebetween; a printed circuit board arranged below the bus bar; a plurality of fixing pins which are joined to the metal portions of the bus bar to fix the bus bar on the printed circuit board and provide a current path between the metal portions and the printed circuit board; and at least one Hall sensor module. At least a portion of the Hall sensor module is inserted into a sensor hole formed in at least one of the low-resistance metal portions of the bus bar.
G01R 1/04 - HousingsSupporting membersArrangements of terminals
G01R 1/20 - Modifications of basic electric elements for use in electric measuring instrumentsStructural combinations of such elements with such instruments
G01R 1/30 - Structural combination of electric measuring instruments with basic electronic circuits, e.g. with amplifier
G01R 15/20 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices
A bus bar assembly and current measuring device configured to reduce measurement errors through linearity compensation and temperature compensation for the difference in values of two or more measured currents, thereby achieving high-accuracy current measurement, is presented. The present invention discloses a bus bar assembly including: a first conductive plate and a second conductive plate each composed of a plurality of parts; and an insulator formed between the first conductive plate and the second conductive plate, wherein a common first terminal hole is formed at one end of the first conductive plate, one end of the second conductive plate, and one end of the insulator, a common second terminal hole is formed at respective opposite ends of the first conductive plate, the second conductive plate, and the insulator. According to the present invention, stable and highly reliable current measurement is possible through multiple shunt resistors based on a redundancy design.
G01R 31/3842 - Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
G01R 31/374 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with means for correcting the measurement for temperature or ageing
H01M 50/503 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
H01M 50/569 - Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
The present invention provides a battery monitoring method, which is performed by a battery monitoring device, including: measuring a first voltage drop across both ends of a first shunt resistor of a bus bar electrically connected to a battery and a second voltage drop across both ends of a second shunt resistor, which is in parallel or serial connection with the first shunt resistor; calculating a first current and a second current flowing, respectively, through the first shunt resistor and the second shunt resistor using a first voltage drop value and a second voltage drop value; and determining a state of the battery using a difference between a first current value and a second current value. According to the present invention, it is possible to increase the reliability of monitoring information related to the battery's state by utilizing current values that have undergone linearity compensation and temperature compensation.
G01R 31/3842 - Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
G01R 31/374 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with means for correcting the measurement for temperature or ageing
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
H01M 50/505 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing comprising a single busbar
H01M 50/569 - Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
The present invention relates to a circuit protection device including: a device comprising a heating element configured to comprise a body and a pair of electrodes formed on the body, and a pair of lead wires connected, respectively, to the pair of electrodes; and a case having an independent accommodating space formed therein to accommodate at least the heating element, wherein the case includes at least one heat insulating layer disposed in the vicinity of the accommodating space.
H01C 1/14 - Terminals or tapping points specially adapted for resistorsArrangements of terminals or tapping points on resistors
H01C 1/022 - HousingEnclosingEmbeddingFilling the housing or enclosure the housing or enclosure being openable or separable from the resistive element
H01C 7/04 - Non-adjustable resistors formed as one or more layers or coatingsNon-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient
H02H 9/02 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
AJOU UNIVERSITYINDUSTRY-ACADEMIC COOPERATION FOUNDATION (Republic of Korea)
SMART ELECTRONICS INC. (Republic of Korea)
Inventor
Kim, Chang-Koo
Lee, Hae-Min
Kang, Doo Won
Kim, Hyun Chang
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.
H01T 4/12 - Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel hermetically sealed
H01T 21/00 - Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs
C23C 18/50 - Coating with alloys with alloys based on iron, cobalt or nickel
C23C 18/18 - Pretreatment of the material to be coated
C23C 18/16 - Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coatingContact plating by reduction or substitution, i.e. electroless plating
C23C 18/36 - Coating with one of iron, cobalt or nickelCoating with mixtures of phosphorus or boron with one of these metals using reducing agents using hypophosphites
H01T 4/02 - Overvoltage arresters using spark gaps Details
H01C 1/024 - HousingEnclosingEmbeddingFilling the housing or enclosure the housing or enclosure being hermetically sealed
H01C 1/026 - HousingEnclosingEmbeddingFilling the housing or enclosure the housing or enclosure being hermetically sealed with gaseous or vacuum spacing between the resistive element and the housing or casing
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.
H01H 85/143 - Electrical contactsFastening fusible members to such contacts
H01C 7/04 - Non-adjustable resistors formed as one or more layers or coatingsNon-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient
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.
H01H 85/02 - Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive Details
H01C 7/04 - Non-adjustable resistors formed as one or more layers or coatingsNon-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient
H01H 85/143 - Electrical contactsFastening fusible members to such contacts
AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (Republic of Korea)
SMART ELECTRONICS INC. (Republic of Korea)
Inventor
Kim, Chang-Koo
Lee, Hae-Min
Kang, Doo Won
Kim, Hyun Chang
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.
H01T 4/02 - Overvoltage arresters using spark gaps Details
H01T 21/00 - Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs
H01T 4/12 - Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel hermetically sealed
C23C 18/50 - Coating with alloys with alloys based on iron, cobalt or nickel
C23C 18/18 - Pretreatment of the material to be coated
C23C 18/16 - Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coatingContact plating by reduction or substitution, i.e. electroless plating
C23C 18/36 - Coating with one of iron, cobalt or nickelCoating with mixtures of phosphorus or boron with one of these metals using reducing agents using hypophosphites
H01C 1/024 - HousingEnclosingEmbeddingFilling the housing or enclosure the housing or enclosure being hermetically sealed
H01C 1/026 - HousingEnclosingEmbeddingFilling the housing or enclosure the housing or enclosure being hermetically sealed with gaseous or vacuum spacing between the resistive element and the housing or casing
AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (Republic of Korea)
SMART ELECTRONICS INC. (Republic of Korea)
Inventor
Kim, Chang-Koo
Lee, Hae-Min
Kang, Doo Won
Kim, Hyun Chang
Abstract
Disclosed is a method for manufacturing a surge absorption device. In order to manufacture a surge absorption device, a plating layer may be formed on the end surface of a ceramic tube through which the internal through-space is exposed, and a sealing electrode may be attached to the plating layer using a brazing ring thereafter. At this time, the plating layer may be formed as follows: forming an electroless plating catalyst layer after etching the end face of the ceramic tube; forming a metal layer on the end face of the ceramic tube according to electroless plating; and heat-treating the metal layer thereafter.
A complex protection device for blocking an abnormal state of current and voltage is disclosed. In the complex protection device, a resistive element is configured in the form of a structure and thus the resistive element has enhanced durability and surface mounting technology suitable for automation may be utilized, and a plurality of resistive elements is configured in various resistances and sizes to be optimally designed for product characteristics.
H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
H02H 3/087 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess current for DC applications
H02H 7/18 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteriesEmergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for accumulators
H01H 85/46 - Circuit arrangements not adapted to a particular application of the protective device
H01H 61/02 - Electrothermal relays wherein the thermally-sensitive member is heated indirectly, e.g. resistively, inductively
H02H 5/04 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
H01H 37/76 - Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
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.
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.
H01C 1/02 - HousingEnclosingEmbeddingFilling the housing or enclosure
H01C 1/024 - HousingEnclosingEmbeddingFilling the housing or enclosure the housing or enclosure being hermetically sealed
H01C 1/014 - MountingSupporting the resistor being suspended between, and being supported by, two supporting sections
H01C 1/08 - Cooling, heating or ventilating arrangements
H01C 1/144 - Terminals or tapping points specially adapted for resistorsArrangements of terminals or tapping points on resistors the terminals or tapping points being welded or soldered
H01C 17/02 - Apparatus or processes specially adapted for manufacturing resistors adapted for manufacturing resistors with envelope or housing
B23K 1/00 - Soldering, e.g. brazing, or unsoldering
B23K 1/19 - Soldering, e.g. brazing, or unsoldering taking account of the properties of the materials to be soldered
B23K 35/02 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
B23K 35/30 - Selection of soldering or welding materials proper with the principal constituent melting at less than 1550°C
H01C 1/026 - HousingEnclosingEmbeddingFilling the housing or enclosure the housing or enclosure being hermetically sealed with gaseous or vacuum spacing between the resistive element and the housing or casing
H01C 17/28 - Apparatus or processes specially adapted for manufacturing resistors adapted for applying terminals
A fuse and a manufacturing method thereof are disclosed. Since a nonconductive member formed of a ceramic material with excellent mechanical strength and a ceramic tube are used and the ceramic tube is joined to sealing electrodes by use of brazing rings, durability of the fuse is considerably improved. The fuse may be stably used at a high voltage by improving time-lag characteristics.
H01H 85/00 - Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
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.
H01C 7/13 - Non-adjustable resistors formed as one or more layers or coatingsNon-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material current-responsive
H01H 37/76 - Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
H01H 85/041 - Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
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.
The present invention relates to a shunt resistor and a shunt resistor assembly, and more specifically, to a shunt resistor and a shunt resistor assembly capable of reducing measurement errors by arranging a measurement terminal, which measures voltage, as close as possible to a resistor element, and having excellent mechanical and electrical connections. (Representative drawing) Figure 1
The present invention relates to a method for manufacturing a shunt resistor and a shunt resistor assembly, and more specifically, to a method for manufacturing a shunt resistor and a shunt resistor assembly capable of preventing welding deformation as much as possible by coupling a resistor element and a connection piece by means of laser or electronic beam welding, and capable of manufacturing a measurement terminal by a simple process of pressing and bending. (Representative drawing) Figure 1
H01C 17/242 - Apparatus or processes specially adapted for manufacturing resistors adapted for trimming by removing or adding resistive material by laser
The present invention relates to a fuse resistor and to a method for manufacturing same. More particularly, the present invention relates to a fuse resistor in which a resistor element is located in a region near a lead wire extracted from one side of a case or near a circuit board and a temperature fuse is located in a region away from the lead wire or the circuit board, thus preventing the temperature fuse from melting and causing blowouts which are caused by the conductive heat or radiant heat generated by soldering and transferred to the temperature fuse, and to a method for manufacturing same.
H01C 7/13 - Non-adjustable resistors formed as one or more layers or coatingsNon-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material current-responsive
The present invention relates to a combined overcurrent protection device for blocking a current and a voltage in abnormal conditions, and more specifically, to a complex overcurrent protection device for blocking a current and a voltage in abnormal conditions, in which a resistor is provided in the form of a structure to increase the durability of the resistor, utilize surface mounting technology which is advantageous for automation, and achieve an optimal design for the characteristics of a product by combining a plurality of resistors with various resistance.
H01H 37/76 - Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
H01T 4/08 - Overvoltage arresters using spark gaps structurally associated with protected apparatus
H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
24.
COMBINED OVERCURRENT PROTECTION DEVICE FOR BLOCKING CURRENT AND VOLTAGE IN ABNORMAL CONDITIONS
The present invention relates to a combined overcurrent protection device for blocking a current and a voltage in abnormal conditions, and more specifically, to a complex overcurrent protection device for blocking a current and a voltage in abnormal conditions, in which a resistor is provided in the form of a structure to increase the durability of the resistor, utilize surface mounting technology which is advantageous for automation, and secure an adequate insulation distance when fusing a fusible element.
H01H 37/76 - Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
H01T 4/08 - Overvoltage arresters using spark gaps structurally associated with protected apparatus
H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
The present invention relates to a surge absorber and a method for manufacturing same, and more specifically to a surge absorber and a method for manufacturing same in which ceramic tubes, made of ceramic material having superb mechanical strength, are utilized, and the ceramic tubes and sealed electrodes are joined by brazing, thereby significantly increasing durability, and sealing the ceramic tubes thoroughly so as to allow stable usage at high voltages.
The present invention relates to a surge absorber and a method for manufacturing same, and more specifically to a surge absorber and a method for manufacturing same in which a ceramic tube, made of ceramic material having superb mechanical strength, is utilized, and the ceramic tube and sealed electrodes are joined by brazing, thereby significantly increasing durability, and sealing the ceramic tube thoroughly so as to allow stable usage at high voltages.
H01C 7/13 - Non-adjustable resistors formed as one or more layers or coatingsNon-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material current-responsive
The present invention relates to a fuse and a method for manufacturing same, and more specifically to a fuse and a method for manufacturing same in which a non-conductive member and ceramic tubes, made of ceramic material having superb mechanical strength, are utilized, and the ceramic tubes and sealed electrodes are joined by brazing, thereby maximizing durability and enhancing the time-lag property so as to allow stable usage at high voltages.
The present invention relates to a resistor and a method for manufacturing same, and more specifically to a resistor and a method for manufacturing same in which ceramic tubes are utilized, and the ceramic tubes and sealed electrodes are joined by brazing, thereby significantly increasing the joint strength and durability, and having superb heat resistance so as to allow stable usage at high voltages.
H01C 7/00 - Non-adjustable resistors formed as one or more layers or coatingsNon-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
H01C 17/02 - Apparatus or processes specially adapted for manufacturing resistors adapted for manufacturing resistors with envelope or housing
29.
CIRCUIT PROTECTION ELEMENT OF CERAMIC RADIANT HEAT STRUCTURE AND MANUFACTURING METHOD THEREOF
The present invention includes a disc type heating element, a lead wire extending from the heating element, a ceramic case comprising a receiving groove for receiving the heating element and a guide groove for guiding the withdrawal of the lead wire, and a filler filled in the receiving groove when the heating element is received in the receiving groove, wherein the ceramic case includes a plurality of walls which defines the receiving groove, one of the plurality of walls has the guide groove, and the thickness of the wall having the guide groove is thicker than that of the other walls.
H01C 7/10 - Non-adjustable resistors formed as one or more layers or coatingsNon-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
Disclosed is a surge absorber which is manufactured via a step of depositing, on an outer side of a nonconductive member, a conductive film made of an antimony tin oxide in a high-temperature environment by using a chemical deposition device. Since a chemical deposition method is used, said surge absorber can prevent an increase in the resistance value caused by the step of depositing the conductive film on the outer side of the nonconductive member and can prevent response speed from being deteriorated due to the increase in the resistance value. In addition, even though said surge absorber is manufactured for high voltage use, the thickness of the conductive film can be adjusted easily.
H01C 17/14 - Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base by thin-film techniques by chemical deposition
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.
H01H 85/02 - Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive Details
H01H 37/36 - Thermally-sensitive members actuated due to expansion or contraction of a fluid with or without vaporisation
32.
Thermal fuse resistor, manufacturing method thereof, and installation method thereof
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.
H01H 85/02 - Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive Details
H01H 37/36 - Thermally-sensitive members actuated due to expansion or contraction of a fluid with or without vaporisation
33.
THERMAL FUSE RESISTOR, MANUFACTURING METHOD THEREOF, AND INSTALLATION METHOD THEREOF
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, even if the case has a lighter weight and a thinner thickness by changing the material of the case as compared with those of a case according to the related art, the case is not easily broken, so that the case is suitable for the lightness and slimness of an electronic appliance employing the thermal fuse resistor. Since only the thickness of the case of the thermal fuse resistor is reflected to the thickness of the electronic appliance employing the thermal fuse resistor, the thermal fuse resistor is suitable for the slimness of the electronic appliance.
H01H 85/02 - Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive Details
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.
H01H 85/02 - Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive Details
Disclosed are a small fuse and a method of manufacturing the same. A cover made from thermosetting resin is coupled with is a base to receive a fusing element therein. The fusing element does not cause damage to the cover even if the fusing element makes contact with an inner wall of the cover due to size reduction of the cover.
A small-sized surface-mounted fuse and a method of manufacturing the same. A fusing element, separated from a winding member, is connected to lead wires by arc welding instead of soldering. Consequently, the present invention has the effect of improving fusing characteristics and productivity while reducing the defective rate and manufacturing costs. To this end, the manufacturing method according to the present invention comprises winding a fusing element predetermined winding turns on a winding member having a predetermined length, cutting both ends of the fusing element wound the predetermined winding turns on the winding member, separating the fusing element having the cut ends from the winding member, pressing the upper ends of lead wires 11 inserted through two through-holes formed at a base while being spaced a predetermined distance from each other such that the upper ends have predetermined areas, respectively, putting the ends of the fusing element on the pressed upper ends of the lead wires, connecting the ends of the fusing element to the upper ends of the lead wires by arc welding, and covering the base with a cover.
H01H 85/04 - Fuses, i.e. expendable parts of the protective device, e.g. cartridges
H01H 85/00 - Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
37.
Fusible resistor and method of fabricating the same
A fusible resistor and method of fabricating the same is provided. The fusible resistor has a very low resistance of 20 to 470 mΩ. 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.
H01C 7/10 - Non-adjustable resistors formed as one or more layers or coatingsNon-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
patents
