Here Come New Ideas for Developing Electric Fan Motor

The "new energy efficiency requirements for electric fan" was formally announced in October 2021 and are scheduled to go into effect in November 2022, according to China's national standard GB12021.9-2021, "Minimum Allowable Values of Energy Efficiency and Energy Grades for Electric Fans."

The new energy efficiency requirements for electric fan will further standardize industry growth, aid in product updates, and aid in national energy conservation and emission reduction efforts after they are put into effect. The new benchmark will sharpen competition among businesses and support their gradual transition to energy efficiency and pollution reduction.

New Standard Highlights: Add scope for DC motor fan

The new energy efficiency standard for electric fan introduces the category of electric fans driven by DC motors for the first time and incorporates the standby power of products in the assessment requirements as compared to the prior version of GB12021.9-2008 in terms of particular content.

A wind-gathering fan's definition, calculation method, and energy efficiency adjustment method are all clearly detailed. The new electric fan energy efficiency standard aims to encourage firms to modify their current product technology, consistently raise the bar for manufacturing technology, and achieve higher energy efficiency levels.

The scope of applicability for table fans, table turning fans, wall fans, floor fans, and ceiling fans powered by AC or DC motors with a single-phase rated voltage not exceeding 250V and other rated voltages not exceeding 480V is expressly adjusted by this edition of the standard. Also, this is the first time that DC motors have been covered by the new electric fan energy efficiency standards.

Raising energy efficiency standards

The new energy efficiency standard for electric fans has been successfully implemented through comprehensive testing of electric fan products at all market levels. This standard aims to eliminate 20% of low-energy efficiency products. According to the new standard, AC motor fans must meet at least Energy Efficiency Class 2 or Class 3, elevating the overall energy efficiency standards for these devices.

Additionally, the standby power of electric fans should not exceed 2.0W. Products with Wi-Fi and IoT capabilities need to be designed in a way that minimizes their standby power usage to enhance energy efficiency.

How do new ideas for how CJC handles standby power control come about?

CJC MOTOR makes use of its unique hardware and software design capabilities through its own intellectual property rights in the underlying control algorithm and self-learning of the brushless fan motor parameters to make the running program reach the optimal state. The most basic method for controlling standby power consumption is to stop sending the running signal when the motor is not running to achieve 0.6 W standby power consumption; if the power is further turned off, 0 W standby power consumption can be achieved.

This method allows the brushless fan motor to achieve the lowest standby power usage while yet being highly effective and quiet. By power consumption while meeting the requirements of high efficiency and low noise.