Class / Patent application number | Description | Number of patent applications / Date published |
337182000 | With external or auxiliary heating means | 7 |
20100219929 | THERMAL FUSE WITH CURRENT FUSE FUNCTION - Disclosed is a thermal fuse structured in such a manner that a resistance heating element which generates heat according to an electric current is mounted within a case charged with a solid fusible material so that the fusible material is liquefied by heat of the resistance heating element caused by the external temperature and also by the current applied to a circuit, accordingly disconnecting the circuit. Since the resistance heating element is integrally formed in the case, the thermal fuse is capable of functioning as both a thermal fuse and a current fuse, disconnecting the circuit by both the external heat and the overcurrent. Especially, when the resistance heating element comprises a positive thermal coefficient (PTC) element capable of temperature measurement, the current flowing through the circuit can be measured. | 09-02-2010 |
337183000 | Resistive heater | 6 |
20130335187 | CIRCUIT PROTECTION DEVICE - A circuit protection device includes a conductive layer which is connected to first and second terminals. A spring is electrically connected to the first and second terminals. When an over-voltage or over-temperature condition occurs within a charging circuit, one or more heat generating resistive elements melts material associated with one or more of the ends of the spring thereby releasing the spring to create an open circuit. | 12-19-2013 |
20150084734 | PROTECTION ELEMENT - The present invention aims to achieve a Pb-free protection element by using a layered body including a high melting point metal layer and a low melting point metal layer. A protection element includes an insulating substrate, a heating body, an insulating member, two electrodes, a heating body extraction electrode, and a fusible conductor. Furthermore, the fusible conductor includes a layered body including at least a high melting point metal layer and a low melting point metal layer, and the low melting point metal layer is melted by a heat generated by the heating body, whereby, while eroding the high melting point metal layer, the low melting point metal layer is drawn close to the side of the two electrodes and the heating body extraction electrode, and fused, the two electrodes and the heating body extraction electrode each having high wettability for the low melting point metal layer. | 03-26-2015 |
20160071680 | PROTECTIVE ELEMENT - A protective element achieves oxide film removing functionality in a flux enabling quick melting of a meltable conductor even when the heating temperature of a heating element is raised rapidly. Protective element includes an insulating substrate, heat-generating resistor laminated onto the insulating substrate, insulating member covering the heat-generating resistor, first and second electrode laminated onto the insulating substrate, heat-generating element extracting electrode laminated onto the insulating member so as to overlap the heat-generating element and electrically connected to the heat-generating element on a current path between the first and second electrodes, meltable conductor which is laminated above the heat-generating element extracting electrode between the first and second electrode which interrupts the current path between the first and second electrode by melting due to heat, and oxide film removing material for removing oxide film generated on the meltable conductor, the oxide film removing material having a plurality of different activation temperatures. | 03-10-2016 |
20160086757 | Device Comprising a Thermal Fuse and a Resistor - The present invention discloses a device comprising a thermal fuse, a resistor and a protective casing. The protective casing provides housing for the thermal fuse and the resistor and increases the anti-explosion properties and insulating and voltage-withstanding properties at the same time. The thermal fuse and the resistor can be used as a basic unit and be directly installed into a switch-mode power supply. It is capable of replacing the existing simple wirewound resistor or the wirewound resistor with an external contact type thermal fuse, and realizing the functions of general impedance, over-current fuse protection, surge protection, anti-explosion and over-temperature protection in case of overloading. | 03-24-2016 |
337184000 | Directly in series with or completing controlled circuit | 2 |
20120038450 | THERMAL FUSE RESISTOR - 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. | 02-16-2012 |
20150145637 | PROTECTION ELEMENT - A protection element wherein variations in fusing characteristics are improved by making the amount of a flux applied on a fusible conductor uniform. The protection element includes: an insulating substrate; a heating element laminated on the insulating substrate and covered with an insulating member; first and second electrodes, formed at both ends of the insulating substrate; an internal heating-element electrode laminated on the insulating member so as to be superposed above the heating element; and a fusible conductor whose ends are connected to the first and second electrodes, and center portion of which is connected to the internal heating-element electrode. To both ends of the heating element, there are connected heating element electrodes to connect a power supply to generate heat by passing electric current through the heating element. In the fusible conductor, a depression portion opened upward is formed at a position to be superposed above the heating element. | 05-28-2015 |