To provide a mobile detector capable of effectively suppressing adhesion of snow and ice by efficiency performing heating between a transmission member and a cover.SOLUTION: A mobile detector comprises: a housing unit that houses a light-emitting unit for emitting sensor light or a light-receiving unit for receiving the sensor light and has an opening end opening toward a first side in an optical axis direction of the sensor light; a cover having an opening through which the sensor light can pass; a transmission member that is arranged between the cover and the housing unit to transmit the sensor light; and a heater unit that is arranged on a second side in the optical axis direction with respect to the transmission member to heat the transmission member. The heater unit comprises: a first heat transfer body that follows the transmission member from the second side in the optical axis direction and is heated by a heating wire; and a second heat transfer body that is inserted between the first heat transfer body and the cover to perform heat transfer from the first heat transfer body to the cover. Heat conductivity of the first heat transfer body is different from that of the second heat transfer body.SELECTED DRAWING: Figure 3
【課題】透過部材とカバーとの間で、効率良く加熱を行い、氷雪の付着を有効に抑えることができる移動体検出装置を提供する。【解決手段】移動体検出装置は、センサ光を発する発光部、又はセンサ光を受光する受光部が収容され、センサ光の光軸方向の第一側に向けて開口する開口端を有した収容部と、センサ光が通過可能な開口を有するカバーと、カバーと収容部との間に配置され、センサ光を透過する透過部材と、透過部材に対して光軸方向の第二側に配置され、透過部材を加熱するヒータユニットと、を備え、ヒータユニットは、透過部材に光軸方向の第二側から沿い、電熱線により加熱される第一伝熱体と、第一伝熱体とカバーとの間に挟み込まれて第一伝熱体からカバーに伝熱する第二伝熱体と、を備え、第一伝熱体と第二伝熱体とは、熱伝導率が異なる。【選択図】図3
MOBILE DETECTOR
移動体検出装置
2025-01-09
Patent
Electronic Resource
Japanese