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Question:

How can the ordinary 30W electric iron be changed into energy saving and electric iron with heat preservation function?

How can the ordinary 30W electric iron be changed into energy saving and electric iron with heat preservation function?

Answer:

A switch is inserted into the middle of the power line, and the two contact points of the switch are connected in parallel with a diode, and the switch is switched off for the normal 220V power supply. The switch is opened, the diode is connected in series, and the half voltage power supply is used to realize the energy conservation and heat preservation.
Add an electric blanket switch on the power line
Do you want to solve the problem of wasting the electricity and temperature while the ordinary electric iron is idle?1, the most time-saving and labor-saving, but also probably the most economical way is to use constant temperature electric iron, now brand 60W constant temperature electric iron more than 30 yuan, very affordable. After you've done the welding, turn the temperature down and put it on the iron seat. Even if the power is not lowered, the power at this time is only the heat dissipated at the set temperature. As long as the temperature is about 300 degrees, the soldering iron does not burn easily.2, the first floor of the method, with an ordinary light switch can be, the diode with 4007 and a half when the power, 15W power should be enough to maintain high temperature, without affecting the next welding.3, the same method, modify the iron seat, so that the iron pressed a spring switch, picked up automatically on the pass. This switch has been seen in some brand computers, which is used to record the number of chassis cases, but 220V estimates are hard to find.4, like the old thermostatic electric iron, in the heating core with magnetic switch, when the temperature reached, the magnet lost magnetism, switch off.5, like hot melt gun that way, with PTC resistor constant temperature, when the temperature reaches the rated value, the resistance rises sharply, the heating power drops.

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