Development of Ceiling Fan: A Futuristic Approach

Ceiling fan is an indispensable part of life in the cooling of homes in nations like India, where they hold a considerable market. However, the ceiling fan industry hasn’t observed much modification in design of technology until the current breakthrough of BLDC motors.

Like the meaningful transition from incandescent to LED bulbs some years back, conventional ceiling fans in India are superseded by modern BLDC fans. BLDC isn’t just another technological novelty but reconstruction in the business because the equivalent output can be achieved with much smaller power consumption.

When it arrives to saving energy, most of us usually overlook ceiling fans. Instead, we recognize big appliances like air conditioners or radiators with suspicion for secretly piling up the electricity bill. We neglect to realize that the ceiling fans are all-weather appliances that keep working all through the day and night, thus cumulatively spending more electricity than we assume.

Efficiency is all about delivering identical results while using lesser electricity. For example, standard ceiling fans made with the traditional design are made of a single-phase induction electric motor—most of the current fan companies used aluminum than copper in the fan, which is more affordable. But aluminum is less energy efficient. The effect is that most of the traditional technology fans consumed about 70-80 watts of electricity. The air delivery of these fans ranges between 210 to 250 m3/min.

Ceiling Fan

For years, ceiling fans came with the same hardware as induction motors, typically spent 70-80 watts for a conventional ceiling fan. But in the last some years, a new technology called BLDC is being used to make fans utilize less energy without compromising on-air delivery. BLDC stands for brush-less direct-current motor, a particular motor with a permanent magnet instead of electromagnets found in a conventional induction motor. BLDC motor has essential advantages over induction motor like low electricity consumption, lesser noise generation, and better lifespan.

In a world where we are studying to decrease our dependence on non-renewable stocks, BLDC is a new way ahead in the fan industry. It’s only a thing of time before the creative, super-efficient BLDC fans will substitute. It is more appropriate in a country like India because it is lighter, more efficient, and has better controllability than traditional motors BLDC motors help achieve stable performance. In addition, it provides constant rotational speeds even with variable voltage conditions that are integrated into the Indian scenario.

Traditional Motor Fans

Old fans use induction motors consisting of two elements – stator and rotor. When you move current through the stator winding, electric flux is produced. This current flows in the coil, which creates a rotational moment through a magnetic field. The speed is regulated by a regulator, which is very inefficient because much heat is wasted due to resistance.

BLDC Motor Fans

A BLDC motor fan uses AC voltage and internally converts it into DC. BLDC motor uses no brushes. Therefore, changing the current direction is done through the driving algorithm. The main advantage of this over some time is the long-term use of this motor. In addition to the stator and rotor, the BLDC motor uses a blend of permanent magnets and electronics to deliver the kind of efficiency and performance it offers. An added advantage arises due to the use of such an electronic circuit. One can add several additional features for convenience to the course, like sleep mode, timer mode, and home-automation-systems compatibility.

Ceiling Fan

Compared to a regular induction fan, a BLDC-motor fan can help save up to Rs 1000-1500/ year/fan. Moreover, since there is no heating created in the motor, the life of a BLDC fan is also expected to be much higher than ordinary fans.

Advancement of Ceiling Fans and Outlook for the Tomorrow

Ceiling fans are the principal means of home cooling in India. Wheeling at speeds of 300-400 RPM, they move vast amounts of air and cool immediately. Brushless DC motors are fascinating attention for their stable administration during voltage fluctuations.

Ceiling fans play an imperative role in the cooling of households and make up a massive market in India. To defend our position in this market, they have expanded the capabilities to meet the varied needs of the customers with a wide range of solutions. It includes both ready-to-use products and modules/units centered on brushless DC motors connected with electronic controllers, remote controllers, blades, and more. In addition to being smaller, thinner, more efficient, and holding better controllability than their standard AC counterparts, brushless DC motors are employed in ceiling fans and related products. These are also fascinating attention for their stable performance, empowering them to manage constant rotational speeds even under the variable voltage conditions inherent in the Indian business.

Conventionally, the voltage in India is assumed to be 230 V. However, in actuality, the number varies heavily between 140-280 V. Moreover, in contradiction with ceiling fans for the Japanese market—related to circulators with low rotational speeds within 100-200 RPM—ceiling fans for the Indian market, formulated for direct cooling, have blades as lengthy as 1.2 m turning at 300-400 RPM. As a result, ceiling fans employed in India are relatively more sensitive to voltage drops, further reducing voltage fluctuation.

Ceiling Fan

Lower cost with smaller and thinner cores is competent in providing the same amount of torque. Brushless DC motors, with their numerous advantages over AC motors, are usually more expensive as well. To subdue this problem and satisfy the demand for economical products, they have optimized the magnetic circuits applying magnetic field analysis and decreased the size and width of the motor core. The result was a more cost-effective design competent in producing the same quantity of torque using less matter. Moreover, by combining the back yoke of the magnet with the motor housing and promoting the motor’s very structure, they succeeded in reducing costs further while freeing up the exterior of the motor—extending freedom of design—in the process.