4 results about "Smoke alarm" patented technology

The invention discloses a charging device for a rapid battery pack replacement system of electric automobile. The charging device comprises a charger and a battery box, the charger is provided with a first charging interface and a display module, the charger is internally provided with a first communication module, a second communication module and a charging module, the battery box is provided with a second charging interface, and the charging box is internally provided with a battery pack, a battery management unit, a smoke alarm, a third communication module and a fourth communication module. The charging module communicates with the battery management unit via the first and third communication modules to obtain charging state information and further to control charging, energy is transmitted to the battery pack via the first and second charging interfaces, the display module arranged on the charger can display charging state information of the battery pack in real time, and the smoke alarm in the battery box can monitor the charging process of the battery pack on site, and raises the alarm timely when an accident happens. The charging device is simple in structure, convenient to operate, safe and reliable in charging and high in automation degree.

The invention discloses an automatic smoke alarm comprising a base; a storage groove is formed in the lower side of the base; a battery is arranged in the storage groove, two electrically conducting strips are symmetrically and fixedly connected in the storage groove, the two electrically conducting strips are in contact connection with the two sides of the battery, a cavity is formed in the base, an inductor is fixedly connected in the cavity and penetrates through the upper side of the cavity, a transmission rod is fixedly connected to the position, located on the upper side of the base, of the inductor, wires are fixedly connected to the position, located in the cavity, of the inductor, and the wires penetrates through the cavity and are connected with the electrically conducting strips in a one-to-one correspondence and matching mode; and the upper side of the base is sleeved with a protective cover, the base penetrates through the protective cover, the base is connected with the protective cover through a connecting device, and the base is fixedly sleeved with a fixing ring. A special reminding device is arranged, and when the electric quantity of a battery in the alarm is insufficient, a corresponding worker is reminded to replace the battery in time.

The invention discloses an automatic type smoke alarm comprising: a housing, a bolt hole, a support, a fixed holder, a state indicating light, a data display screen, a sensing hole, an inner ring, a buzzer, an adjusting valve, a gasket and a power supply device. The housing is fixedly connected with and mounted at the periphery of the support and the housing is fixedly connected with the inner ring through the support. The bolt hole is fixed connected with and mounted on the upper side of the housing and the bolt hole is fixedly connected with the fixed holder through the housing. The gasket is fixedly connected with and mounted on the right side end part of the housing. The power supply device is arranged at the lower side of the adjusting valve and the power supply device is connected with the buzzer. The automatic type smoke alarm of the invention, through the arrangement of the gasket, enables the buzzer to reduce the vibration-incurred damage to the alarm in its work and prolongs the service lifetime of the smoke alarm. At the same time, the data display screen is able to accurately record the data; the adjusting valve can adjust the magnitude of the smoke required by the alarming to fit varied environments. Simple in structure, the smoke alarm can be used conveniently.