To provide a lamp fitting capable of suppressing heat generation and preventing destruction of electronic parts.SOLUTION: A lamp fitting includes a power supply circuit which is provided on a first substrate and generates a predetermined voltage on the basis of, a power supply voltage, a plurality of light emitting elements provided on a second substrate, and an adjustment unit for adjusting a driving current flowing through each of the plurality of light emitting element, and has a light source using the predetermined voltage as a power source, a control unit which is provided on a third substrate and controls the adjustment unit, a first temperature detection circuit which is provided on the first substrate and detects a temperature, and a second temperature detection circuit which is provided on the second substrate and detects a temperature. The control unit controls the adjustment unit on the basis of, a detection result of a higher temperature out of respective detection results of the first and second temperature detection circuits, and a signal indicating a lighting condition of the plurality of light emitting elements.SELECTED DRAWING: Figure 2

    【課題】発熱を抑制し、電子部品の破壊を防ぐことが可能な灯具を提供する。【解決手段】第1基板に設けられ、電源電圧に基づいて所定電圧を生成する電源回路と、第2基板に設けられ、複数の発光素子と、前記複数の発光素子のそれぞれに流れる駆動電流を調整する調整部と、を含み、前記所定電圧を電源とする光源と、第3基板に設けられ、前記調整部を制御する制御部と、前記第1基板に設けられ、温度を検出する第1温度検出回路と、前記第2基板に設けられ、温度を検出する第2温度検出回路と、を有し、前記制御部は、前記第1及び第2温度検出回路のそれぞれの検出結果のうちの温度の高い方の検出結果と、前記複数の発光素子の点灯条件を示す信号と、に基づいて、前記調整部を制御する。【選択図】図2


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    Title :

    LAMP FITTING


    Additional title:

    灯具


    Contributors:
    YAGITSU SHOHEI (author) / OTA MASARU (author)

    Publication date :

    2023-02-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H05B ELECTRIC HEATING , Elektrische Heizung / 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 / F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen



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