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Electric fan solution
An electric fan is an electrical appliance that uses a motor to drive the fan blades to rotate to accelerate the flow of air. Household electric fans are mainly used for cooling and relieving heat and circulating air. Industrial electric fans can also be used for heat dissipation, ventilation and dust removal in workshops, and product heat dissipation.
1. The main components of the electric fan
The fan is mainly composed of fan head, blades, net cover and control device and other components. The fan head includes a motor, front and rear end covers, and an oscillating air supply mechanism.
There are rotor, stator, control circuit and AC motor inside the fan head. The rotor is composed of magnets, fan blades and shafts; the stator is composed of silicon steel sheets, shafts and bearings; the control circuit is composed of IC induction magnets; the N.S. poles control the conduction of the coils through the circuit to generate internal excitation to make the rotor rotate.
The control module includes speed control switch, timing knob, shaking head switch, light switch, etc. These control mechanisms should be flexible in operation and reliable in contact.
2. The scheme principle of the electric fan
The energized coil is forced to rotate in the magnetic field. Electrical energy is converted into mechanical energy, and at the same time due to the resistance of the coil, a part of the electrical energy is inevitably converted into heat energy. In addition, low-power motors such as DC motors and DC brushless motors are more and more widely used in small fans.
When the electric fan is working (assuming there is no heat transfer between the room and the outside world), the temperature in the room will not decrease, but will increase. Let's analyze the reason for the temperature rise: when the electric fan is working, because there is current passing through the coil of the electric fan, the wire has resistance, so it will inevitably generate heat and release heat outward, and the temperature will naturally rise. But why do people feel cool? Because there is a lot of sweat on the surface of the human body, when the electric fan works, the air in the room will flow, so it can promote the rapid evaporation of sweat, combined with "evaporation needs to absorb a lot of heat", so people will feel cool.
3. Types of electric fans
1. According to the type of fan blade, it can be divided into: traditional fan with blade and fan without blade.
2. According to the structure of the motor, it can be divided into: single-phase capacitive, single-phase shaded pole, three-phase induction, DC and AC-DC dual-purpose series-excited commutator electric fans.
3. According to the classification of use, it can be divided into: household electric fans and industrial exhaust fans.
(1) Household electric fans: there are ceiling fans, desk fans, floor fans, wall fans, top fans, ventilation fans, rotary fans, air-conditioning fans (that is, cooling fans), etc.; , There are also turning fans; among floor fans, there are shaking heads and turning pages. There is also a small breeze fan, which is specially hung in the mosquito net. When you sleep at night in summer, when you turn it on, there will be a breeze immediately, so you can sleep peacefully without getting sick.
(2) Industrial exhaust fans: mainly used for forced air convection and ventilation.
4. Solution application of creative electric fan
1. Voice recognition electric fan
The sound-activated electric fan is equipped with a miniature electronic receiver, which can control the operation of the electric fan through sound. Some newer models can also accept voice commands, which have a more refined control effect.
2. Air-conditioning fan (air conditioning fan)
The air conditioner fan is a new type of electric fan combined with a fan and a refrigerator. The fan has a cooling core, and there is a mixed liquid in the central cylinder of the core. Put the core in the refrigerator for 3 hours and take it out for use. It can blow out cold wind, giving people the feeling of cold air blowing.
3. Water mist fan
The water mist fan decomposes water into fine water mist through the secondary centrifugal fast movement, and then blows the water mist away with the help of the wind force of the fan.
4. Portable electric fan
Portable fans, that is, fans that are convenient to carry around, are small in size and light in weight, and meet the needs of portability to a certain extent. It is suitable for going out in summer or when there is no cooling tool around. There are many fans of this kind, such as batteries, rechargeables, and USB ports. It is also a good tool in summer.
5. Light ceiling fan
The electric fan that can be installed on the lamp holder of the light bulb at the top of the ceiling is small and exquisite, and can be used as long as there is a lamp holder for installing the light bulb. It is not only easy to install, but also can save energy.
6. USB small fan
The USB fan is a miniature electric fan with a USB interface on a desktop or laptop computer. The USB port on the computer can provide external devices with a voltage of 5 volts and a current of 500mA. The USB fan is a small fan that provides power through the USB interface. The biggest feature of the USB fan is convenience, plug and play, as long as you plug in the USB port, you can immediately generate cool breeze. The USB fan can also be placed in the laptop bag and taken anywhere. The blades of the USB fan are made of soft plastic film. Although the rotation speed is fast, it is absolutely safe, the noise is not large, and the wind performance is also good. good.
The above are the details of the electric fan solution introduced by Shenzhen Zuchuang Microelectronics Co., Ltd. for you. If you have functional development needs for USB small fans, air-conditioning fans, water mist fans, and bladeless fans, you can trust us. We have rich experience in customized development of electronic products, and can evaluate the development cycle and material prices as soon as possible.
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