Electric fan is a kind of motor to rotate the fan leaves, thereby accelerating the circulation of indoor air, and has achieved the purpose of cooling.It is mainly used in the hot season to cool down and relieve heat.In ordinary families, electric fans are the most common summer cooling appliances.Compared with air conditioners, the price of electric fans and practicality are more popular.
Electric fan maintenance
The weather is too hot, and the air conditioner cant take care of it. The whole fan is broken. This electric fan is broken again.This summer, how can I hold it? Fortunately, there is the maintenance method of electric fan shared by the landlord. It turned out that the power cord was bitten by the meow star, and it was necessary to change the roots.
Common faults of electric fans
1. Before using the electric fan before, read the instruction manual in detail before using, and fully grasp the structure of the electric fan and the correct use method.
The desktop and floor -to -ceiling electric fan must use a three -core plug and socket with a safe ground line; the suspension fan should be installed in a higher position in the ceiling, and the ground wire may not be installed.
2. The wind leaves of the electric fan are important components. Whether it is installed, disassembled, scrubbed or used, protection must be strengthened to prevent deformation.
3. Regularly clean the electric fan to avoid the dust of the electric fan affect the work of the electric fan.Generally, after a long time, it is easy to stick a lot of dust on the fan blades.At this time, you need to clean the dust on the fan blades.Be careful not to wipe with gasoline or strong alkali to avoid damage to the surface paint.
4. After the end of the summer, collect the electric fan. Before collecting, clean the electric fan thoroughly, then wrap the electric fan with a cloth cover, and place it in a dry and stable environment.
Method of electric fan purchase
The electric fan cannot start, maybe the reason is:
① Poor the connection of the hood pole winding; ② the stator winding is broken; ③ the two bearing of the electric fan is too tight;
Processing method:
① Check the winding of the winding to make it contact well; ② Check whether the stator winding is the pathway, and reinstate it if necessary; ③ Add lubricating oil or replace the bearings; ④ adjust the stator and the rotor gap; ⑤ check the rotor cage bar for repair or replacement; ⑥ replaceCapacitors; ⑦ Check the power cord to restore power.
Sometimes the electric fan turns sometimes and sometimes does not turn. The possible reason is:
① Damage or break of the line; ② Poor connection welding; ③ Poor contact with the internal components of the switch; ④ The main and auxiliary winding circuit or touch the line; ⑤ The parts of the head of the heading mechanism are too tight;
Processing method;
① Check the entry line and restore normal power; ② Check the connection line to make it good; ③ Check the switch component to make it contact well; ④ Measure whether the main and subvoters of the main winding group, if it is not connected, replace the winding group; ⑤ add lubricating oil or replace the adjustment adjustmentIndividual parts; ⑥ Check the capacitor wiring to make it well in contact.
The speed of the electric fan is slow, the possible reason is:
① Damage or lack of oil in the flat bearing of the hanging fan; ② The hanging fan rotor sinks; ③ the power supply voltage is too low;
Processing method:
① Replace the plane bearing and add lubricating oil; ② Restore the original position of the rotor; ③ adjust the power supply voltage to reach it or close to the rated voltage;Capacitors of the same capacity; ⑥ adjust the winding leaf slope.
The electric fan is too hot, the possible reason is:
① There are debris between the stator and the rotor; ② lack of lubricating oil; ③ short circuit of winding; ④ bearing and shafts are too tight; ⑤ The front and back of the table fan cover the wind channel to block; ⑥ shake the head part is not flexible;Affects heat dissipation.
Processing method:
① Clear debris; ② Add lubricating oil; ③ Replace the winding group; ④ adjust or replace the bearings; ⑤ clear the air duct block; ⑥ Add lubricating oil to replace the relevant parts;
5 There is a noise when the electric fan runs. The possible reason is:
① The plane of the stator and the rotor is incomplete; ② There is a debris magnetic rubbing between the stator rotors; ③ the bearing loose or damage;弯 The motor turns bent; ⑧ Electric motor stator iron iron iron chips are loose.
Processing method:
① Repair or replace the stator and rotor; ② Clear debris; ③ Faste the bearings or replace; ④ replace or adjust the bearings; ⑤ reinterpret the support screw;Fixed fixing child iron core.
Types of electric fans
1. Look at the web cover and fan blades
Whether the appearance of the electric fan is intact, check whether the mesh and fan blades are deformed on the assembled electric fan mesh cover, and use a pen to point to the highest point of a fan blade to slowly move the fan blades.The distance between the point and the pen tip should be very similar, and then check whether the rotation of the fan blades is flexible.
2. Look at the startup performance
Starting performance is an important indicator of the quality of electric fan.When buying, the power adjustment fan should be transmitted at a slow speed, and when the rated voltage of the power supply is 85%, the 220 volt voltage is reduced to start the electric fan with a regulator.At the same time, it can maintain normal operation. The shorter the startup time, the better the startup performance of the electric fan.
The shorter the time for a electric fan from starting to normal operation, the better the starting performance of the fan motor.
3. Look at the performance and speed adjustment performance
After power -on, shake the head and switch to the resume several times. Check whether it is failed or pretended to be too tight. In the process, the fan mechanical transmission part should not have abnormal noise.When the electric fan is running at high, medium, and low -speed, the motor and fan blades should be stable, vibrated small, and low noise.The fan shakes the head and stops agile. The phenomenon of interval, stagnation, and jitter should be obvious. The larger the difference between the speed of each gear, the larger the air supply angle, the better.When the electric fan stops, the axis of the axis shaft does not exceed 0.5 cm, and the gap is too large. It will cause axis and impact sounds during operation.
4. Look at active performance.
The performance of the electric fans activity mainly includes the flexible operation of the fan head, the operation of each angle is flexible, and the lock is firm.At the same time, when the electric fan is adjusted to the maximum lean angle or shakes the head to the final position, the mesh cover will not touch the fan pillar.The angle of shaking the head should not be less than 6080 degrees.
5. See if the control agency is flexible
The control mechanism of the electric fan mainly includes shaking switch, timing knobs, speed -regulating switch, lighting switch, etc. It should be tested one by one when purchasing. Whether these control agencies are flexible.
Electric fan working principle
According to the motor structure, it can be divided into: single -phase capacitor type, single -phase hood pole, three -phase induction, DC and DC string string stringing tidal fans.
Classification can be divided into: household electric fan and industrial row fans.Household electric fans: there are landing fans, wall fans, top fans, air -changing fans, paging fans, suspension fans, table fans, air -conditioning fans, etc.; There are also dividing heads and not shaking their heads in the table fan, as well as paging fans.
There are shooks and pages in the floor -to -ceiling fan.Industrial exhaust fan: It is mainly used to force air convection.

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