The principle of a manual generator is in fact the principle of electromagnetic induction. That is, the coil generates an electromotive force induced in the rotating magnetic field. The basic structural components of an ordinary manual generator are as follows. the stator and the rotor. The stator is usually a permanent magnet, the rotor is a coil.
Under the action of an external force, the coil moves in the magnetic field to cut the magnetic field lines to generate an induced electromotive force. If the internal coil forms a closed loop with the external circuit through the brush, then. a current will form in this circuit!
Detailed information
Portable, manual and rechargeable emergency power supply. In the absence of commercial energy and oil-based electricity generation anywhere in the world, human energy can be used to generate electricity to sustain food.ment various electronic products. It can be actively used in field operations, field inspections, rescue operations, natural disasters, survival training, emergency communications, long-term power outages, tourism , the use of emergency power, etc.
Mainly used for low-power communication radio stations, walkie-talkies, notebook computers, PADs, mobile phones, video cameras, digital cameras, music CDs, MP4s, MP3s, portable mobile TVs, DVDs, radios, flashlights. lighting, various lamps, power or charge portable products such as power tools, automobiles and various measuring instruments. It can directly charge different types of batteries such as lithium batteries, nickel-metal hydride batteries and acid batteries.lead.
Baidu Encyclopedia - Manual Generator
The current multi-functional self-rescue flashlight is pretty good. Combining several functions into one makes it much more practical. I saw others using it and thought it was pretty good, so I wanted to buy one, but I never knew where to buy a regular one. I'm afraid that what I bought is not an ordinary product and will not be effective at the critical moment. This would result in more loss than gain. This seems to be very popular now. There are many functions. So it remains very practical. Many people use it. Except for normal use. It can even save lives in an emergency. It can send audible and visual alarm signals. This feature is particularly beneficial for women. Not bad. It has many functions. I also have a multi-function self-rescue flashlight likethis one at home. I bought it from the official website of 51 Anju. It has the functions of safety hammer, radio, crank charging, hook, flash warning light, audible and visual alarm, battery, emergency flashlight and other functions. The combination of these functions is quite powerful. Overall, the price/quality ratio is quite high. Functions:
1. Emergency Strobe Light: A flash warning light consisting of multiple red LED lights, which has a strong warning effect in an emergency, the flashlight can be fixed on the roof of the car and it can emit a red flashing emergency signal which plays an emergency rescue role.
High decibel sound alarm: It can emit a super loud siren sound of 85 decibels. If women are in danger late at night or elderly people have sudden illness in the middle of the night, they can use it. for ensend a distress signal to call for help;
3. Tapered Safety Hammer: Strong and durable, the flashlight adopts a longitudinal streamlined design to make the safety hammer less likely to break when hitting the glass; Four weighted magnets are added to the head to make the safety hammer more durable during use. Has percussive power.
4. FM Radio: Provides information in case of emergency.
5. The flashlight has a built-in high-efficiency energy storage device, which avoids the battery consumption problem caused by ordinary batteries not used for a long time. The battery capacity is 1200 mAh and is durable. .
6. When charging the flashlight, you can use a common power adapter on the market to connect the USB cable. At the same time, a hand-cranked machine can be used to produce electricity.electricity, which can be charged and used at any time, truly realizing emergency, environmental protection and uninterrupted power supply. Additionally, this flashlight can also be used as an emergency power bank! If you accidentally get stuck and your phone is out of power, you can use the crank to charge your phone.
7. Emergency lighting: Use imported ultra-high brightness LED bulbs with a lifespan of up to 10,000 hours. This is the 51 Anju brand. The manual says it uses imported ultra-high brightness LED bulbs with a lifespan of up to 10,000 hours. It is energy efficient and durable.