PROBLEM TO BE SOLVED: To provide a vehicular alarming horn capable of suppressing an electric resistance change accompanying a temperature change.SOLUTION: A vehicular alarming horn 1 includes: a coil 20 which generates magnetic force by being energized; a fixed iron core 22 which generates magnetic attraction force by the magnetic force; a movable iron core 4 which is displaced in an axial direction by the magnetic attraction force; and a diaphragm 3 which is vibrated accompanying displacement of the movable iron core 4 and vibrates air. The vehicular alarming horn 1 has a resistance change characteristic that electric resistance is lowered according to a temperature rise and includes an electric component 5 connected to the coil 20 in series. A change rate to a temperature change in combined resistance of the coil 20 and the electric component 5 combined with each other becomes smaller than that of resistance of the coil 20 alone. Therefore, a change in electric resistance in the whole of the vehicular alarming horn 1 can be suppressed even if a temperature greatly changes to a low temperature side or a high temperature side.SELECTED DRAWING: Figure 1

    【課題】温度変化に伴う電気抵抗変化を抑制できる車両用警音器を提供する。【解決手段】車両用警音器1は、通電されて磁力を発生するコイル20と、この磁力によって磁気吸引力を発生する固定鉄心22と、この磁気吸引力によって軸方向に変位する可動鉄心4と、可動鉄心4の変位に伴って振動して空気を振動させる振動板3と、を備えている。車両用警音器1は、温度上昇に伴い電気抵抗が低下する抵抗変化特性を有し、コイル20に対して直列に接続されている電子部品5を備えている。コイル20と電子部品5とを合わせた合成抵抗の温度変化に対する変化率は、コイル20単体の抵抗よりも小さくなる。これにより、温度が低温側または高温側に大きく変動したとしても、車両用警音器1の全体における電気抵抗の変化を抑えることができる。【選択図】図1


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    Titel :

    VEHICULAR ALARMING HORN


    Weitere Titelangaben:

    車両用警音器


    Beteiligte:
    DOI SATOSHI (Autor:in) / SUZUKI SHINGO (Autor:in)

    Erscheinungsdatum :

    2018-09-27


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES



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