9results about "Current responsive resistors" patented technology

The application discloses a multifunctional resistor and a multi-current detection device with the same. The resistor comprises a trunk resistor substrate and a plurality of branch resistor substrates, all of which are welded at intervals on the circumferential side of the trunk resistor substrate; each branch resistor substrate comprises two resistor elements and a first insulating plate embedded between the two resistor elements; on each branch resistor substrate, the two resistor elements are symmetrically welded on the two sides of the first insulating plate, the first ends of the two resistor elements and the first end of the first insulating plate are all welded with the trunk resistor substrate, and the two resistor elements are isolated from each other through the corresponding first insulating plate; and the two resistor elements are electrically connected with the trunk resistor substrate. The application realizes the multifunctional multi-resistor function through integrated design; the two resistor elements in each branch resistor substrate are isolated from each other through the corresponding first insulating plate, thereby effectively reducing the temperature drift effect and being capable of being used for large-current and multi-current detection applications.

The present application provides a circuit protection device, comprising: a patch type thermistor element including a first electrode and a second electrode; a first heat dissipation terminal connected with the first electrode; a second heat dissipation terminal connected with the second electrode; and a housing protecting the thermistor element, the first heat dissipation terminal and the second heat dissipation terminal. The circuit protection device according to the present application having an SMD (Surface Mount Device) structure can be applied to an ultra-thin wall-mounted television.

The present application relates to the technical field of electronic components, and in particular to an overcurrent protection component, which overcomes the problems of poor conductivity, slow response and poor self-protection when used by welding of the prior art. The component has a core material, which comprises a top surface, a bottom surface opposite to the top surface, two side surfaces between the top surface and the bottom surface, and two end surfaces; a first conductive layer is formed on the top surface of the core material, and a second conductive layer is formed on the bottom surface of the core material; an encapsulation layer encapsulates the first conductive layer and the second conductive layer, and encapsulates at least one of the side surfaces; a first end electrode is electrically connected to the first conductive layer, and a second end electrode is electrically connected to the second conductive layer.

A surface-adhesive overcurrent protection element includes at least one PTC material layer, a first conductive layer, a second conductive layer, a first electrode, a second electrode, at least one insulating layer, and a capping layer. The PTC material layer comprises a crystalline polymer and conductive fillers dispersed within the crystalline polymer. The first and second conductive layers are respectively disposed on the first and second surfaces of the PTC material layer. The first and second electrodes are electrically connected to the first and second conductive layers, respectively. An insulating layer is disposed between the first and second electrodes for electrical isolation. The capping layer comprises a fluorinated polymer material and covers the entire outer surface of the surface-adhesive overcurrent protection element.

This invention discloses a power-type composite thermistor for suppressing surge current, comprising an NTC thermistor chip and a PTC thermistor chip encapsulated in a resin layer with their two electrodes in contact. A common pin is fixed to the contact electrode of the NTC and PTC thermistor chips, and NTC and PTC thermistor pins are fixed to the non-contact electrode of the NTC and PTC thermistor chips, respectively. The contact NTC and PTC thermistor chips are connected in parallel in a circuit for suppressing surge current. This invention uses a soldered encapsulation method, facilitating mass production, and offers advantages such as low-temperature start-up, surge suppression, and adaptability to frequent power-on / off cycles. Its novel structure has promising application prospects.

Provided is an overcurrent protection element comprising: a core material comprising a top surface, a bottom surface opposite the top surface, a first side surface and a second side surface both located between the top and bottom surfaces, and a first end surface and a second end surface both located between the top and bottom surfaces. A first conductive layer is formed on the top surface of the core material, and a second conductive layer is formed on the bottom surface of the core material. An encapsulation layer covers the first conductive layer, the second conductive layer, and at least one of the side surfaces. A first terminal electrode is electrically connected to the first conductive layer, and a second terminal electrode is electrically connected to the second conductive layer. The overcurrent protection element has excellent electric conductivity, fast response, and sufficient self-protection during soldering process and in use.

Provided is a circuit protection device including: a plate-shaped thermistor element comprising a first electrode and a second electrode; a first heat-dissipating terminal connected to the first electrode; a second heat-dissipating terminal connected to the second electrode; and a housing protecting the thermistor element, the first heat-dissipating terminal and the second heat-dissipating terminal. According to the present disclosure, the circuit protection device having a surface mount device (SMD) structure may be applied to a slim wall-mounted television.