The flipping advertisement screen is also called the flipping light box advertising screen. It is a kind of modern large-scale advertising screen. It is widely used in roadside advertising boxes because of its large area, low cost, multi-format advertisement display and economical and practical.
The page flip is driven by a small motor. This kind of advertising box will cause the small motor to be blocked, overloaded and burned due to unstable voltage, high temperature, high humidity and the like. Therefore, small motors must be designed with protection circuits to ensure their reliability and stability.
Small motor protection methods are various. In the past, bimetal temperature controllers were often used for protection. The small motor coil temperature rise circuit was disconnected, and the temperature reduction circuit was turned on again. If the power was not turned off, the motor would continue to work on, time A little longer will get a small motor.
In order to save costs, the current manufacturers use aluminum wire or copper-clad aluminum wire. When the motor is overloaded and the temperature is increased, the temperature rises faster than the temperature of the bimetal thermostat. It is possible that the motor has burned down. The thermostat has no protection action, that is to say, the bimetal thermostat is too slow to operate, and the small motor has been burned.
In view of this, we recommend that the application of the collector-recoverable fuse JDTFUSE for small motor protection is the best choice.
JDTFUSE, also known as a protection limit for temperatures and currents above the design, senses temperature and current changes much faster than bimetal thermostats.
When the temperature and current of the small motor are higher than the designed temperature and current, JDTFUSE will immediately start protection, limit the current of the circuit, and achieve the purpose of protection. Only when the power is cut off or the fault is repaired, JDTFUSE automatically recovers, and the power will not recover. This solves the potential danger of the motor being repeatedly burnt out due to the temperature drop, and at the same time accurately protecting the motor equipment.
This kind of application JDTFUSE solution is better than other methods, as long as an overcurrent protector component is connected in series to the coil or power line of the small motor.
"Non-burning, nicotine for users, low tar content. As the heating temperature (below 500℃) is lower than the combustion temperature of traditional cigarettes (600-900℃), the harmful components produced by tobacco high-temperature combustion pyrolysis and thermal synthesis are reduced, and the release amount of side-flow smoke and environmental smoke (second-hand smoke) is also greatly reduced."
Heating non - combustion products are electronic devices containing tobacco. When you heat them, they produce a nicotine-containing vapor that you can inhale.
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Still, the temperature at which non-combustion products are heated is high enough to vaporize and inhale harmful chemicals.
Although both are electronic devices, heated non-combustible products are also different from e-cigarettes or steam devices. These usually use chemical liquids and do not necessarily contain nicotine. E-cigarettes tend to heat liquids to around 250 degrees Celsius to produce vapor.
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