The choice to use brushless DC motors for many fans with batteries is largely attributed to the several advantages of brushless DC motors, which make them particularly well suited for battery-operated fan applications that require portability, long life, and low noise. This choice is explained in more detail below:

Advantages of structure and operating principle
Simplified structure: DC brushless motors have no brushes and have permanent magnets attached to the rotor, which is driven by an electronic controller. This structure reduces mechanical wear and improves the reliability and life of the motor.
Optimized working principle: Brushless motors monitor the rotor position through electronic controllers and precisely adjust the current and magnetic field to keep the rotor in the correct position. This control is more efficient and reduces energy loss.
Performance Advantages
High Performance: Brushless DC motors accurately regulate rotor movement and current to reduce energy loss, thus producing more wind power for the same amount of power and providing better heat dissipation.
Silence and Stability: The design of the brushless motor eliminates the noise caused by brush friction, while the precise regulation of the current through the electronic controller makes the operation smoother and reduces vibration and shock.
Energy saving and environmental protection: Brushless motor has less loss in the process of electric energy conversion, which can utilize electric energy more effectively and improve the energy utilization rate. Therefore, it has significant advantages in energy saving and emission reduction, which can reduce energy consumption and minimize the impact on the environment.
Control and Portability Advantages
Precise control: Brushless motor fans can realize precise speed adjustment and wind power adjustment through electronic control technology, which has better controllability. This allows users to choose the right wind power as needed to meet the demands of different scenarios.
Compact and lightweight: Brushless fans can be more compact and lightweight due to the use of advanced electronic control technology and material technology. This makes fans with batteries more portable and suitable for outdoor camping, traveling and other scenarios.
Reliability and Longevity Advantages
Longer life: Brushless motors last longer than brushed motors due to reduced mechanical wear and tear. This makes fans with batteries more reliable for long runs and harsh environments.
Adaptable: Brushless motors are highly adaptable to voltage and are able to operate stably over a wide range of voltages. This makes fans with batteries maintain stable performance in different areas and scenarios.
To summarize, DC brushless motors are ideal for fans with batteries because of their high efficiency, quietness, stability, energy saving, precise control, compactness, light weight, as well as long life and strong adaptability. These advantages allow fans with batteries to provide portability and comfort while maintaining high performance and long life.

FOC stands for Field-Oriented Control, also known as vector control, is a motor control strategy. It mainly controls three-phase DC brushless motors by controlling the amplitude and frequency of the output voltage of the inverter to achieve precise control of the motor. The following is a detailed explanation of FOC:
I. Definition and Principle
Definition: FOC is an inverter drive control method, the core of which lies in the use of coordinate transformation technology to convert the motor phase currents under the three-phase stationary coordinate system to the rotating coordinate system which is stationary with respect to the axis of the rotor poles, so as to realise the control of the size and direction of the motor vectors.
Principle: The essence of FOC is to simplify a complex AC control problem into a DC control problem by means of coordinate transformations (e.g., Clarke transformation and Park transformation).
Under the rotating coordinate system, the flux current component and torque current component of the motor can be decoupled, so that they can be controlled separately to achieve the dynamic performance similar to that of a DC speed control system.
Second, the technical characteristics
Precise control: FOC can realise precise control of the motor torque and speed, and improve the operation efficiency and stability of the motor.
Fast dynamic response: As FOC adopts vector control strategy, the dynamic response of the motor is faster and can adapt to the load changes quickly.
Wide application: FOC technology has been widely used in servo controllers, vector inverters and other products in the industrial field, as well as in civilian fields such as inverter air conditioners, high-end inverter fans and other applications.
Workflow
FOC control is mainly composed of the following modules:
Coordinate transformation: including Clarke transformation and Park transformation, which is used to convert the phase current of the motor in the three-phase stationary coordinate system to the rotating coordinate system.
PID control: PID control of the current components under the rotating coordinate system to achieve precise control of the motor.
SVPWM control: According to the output of the PID controller, the corresponding space vector pulse width modulation (SVPWM) signal is generated to drive the motor operation.
Fourth, the field of application
The application of FOC technology in the industrial field is relatively mature, and common products include servo controllers, vector inverters and so on. In the civilian field, FOC technology is also gradually gaining popularity, such as the emergence of inverter air conditioners, high-end inverter fans and other products. In addition, with the rapid development of electric vehicles and renewable energy and other industries, FOC technology in these areas also shows a broad application prospects.
V. Summary
As an advanced motor control strategy, FOC has the advantages of precise control, fast dynamic response, and wide application. Through coordinate transformation and vector control technology, FOC can achieve precise control of motor torque and speed, and improve the operating efficiency and stability of the motor. With the continuous progress of technology and the expansion of application fields, FOC technology will play an important role in more fields.

Translated with DeepL.com (free version)

The Xuperb Brushless Motor Blender is a revolutionary kitchen appliance that is set to transform the way we prepare food and drinks. This innovative blender is equipped with a advanced brushless motor, setting it apart from traditional blenders in the market. The brushless motor technology ensures a more efficient and powerful blending performance, making it a game-changer in the world of kitchen appliances.

Unlike traditional blenders that use brushed motors, the Xuperb Brushless Motor Blender utilizes a brushless motor, which offers several advantages. Firstly, brushless motors are known for their durability and longevity. This means that the Xuperb blender is designed to withstand heavy usage and will last for years to come, making it a reliable and cost-effective investment for any kitchen.

Moreover, the brushless motor technology in the Xuperb blender delivers a smoother and quieter blending experience. Say goodbye to the loud and disruptive noise of traditional blenders, as the brushless motor operates with minimal noise, allowing you to blend your favorite ingredients without causing a disturbance.

In addition to its superior motor technology, the Xuperb Brushless Motor Blender boasts a range of impressive features that make it a must-have kitchen appliance. With its powerful blending capabilities, this blender can effortlessly crush ice, blend fruits and vegetables, and create silky smooth purees and smoothies. Its versatile functionality makes it suitable for a wide variety of recipes, from refreshing beverages to creamy soups and sauces.

Furthermore, the Xuperb Brushless Motor Blender is designed with user convenience in mind. Its sleek and modern design, coupled with intuitive controls, makes it easy to use for both experienced chefs and kitchen novices. The blender is also easy to clean, with removable parts that are dishwasher safe, saving you time and effort in maintaining its pristine condition.

In conclusion, the Xuperb Brushless Motor Blender is a game-changer in the world of kitchen appliances. With its innovative brushless motor technology, powerful blending performance, and user-friendly design, it is set to elevate the blending experience for home cooks and culinary enthusiasts alike. Whether you are whipping up a refreshing smoothie or creating a gourmet sauce, the Xuperb Brushless Motor Blender is the ultimate kitchen companion for all your blending needs.

These Incredible Tinder Hookup tales is going to make your own Jaw Drop

Some folks have the miraculous touch in relation to Tinder. You might chalk it up to chance, nevertheless the more inclined reason is their unique profile picture is found on point, their own bio reads really and so they can message ladies regarding software.

Once all those elements come together in great harmony, you will get tales like types down the page. They are the Tinder hookups of legend — the type of enjoyable, smooth, no-strings-attached encounters that men and local asian girls that checking for some informal flings think of.

See the reports below for motivation following fix getting a man on Tinder you can be. Now go get swiping!

1. Morning Delight

“Sometimes we swipe around 6:30 am when my alarm goes down and I also’m also lazy to leave of bed straight away. We check tinder while having a note from night before, a match I’ve had for some time, 19 yrs old asking when she will reach see me personally or some crap. I never know how to handle it with one of these 18-19 season olds. We say possibly this evening, not planning on an easy reaction looking at what time it had been, but she immediately fires back once again that she works that evening but exactly how concerning this morning? I mentioned lol i must work, she claims she actually is horny, I stated come over. So the woman is inside my destination by 7am, we fuck to my sofa, and that I visit work about an hour later.” – yinzcity

2. Skill-Sharing

3. This Person Only Shacks Up With “Clever Babes…”

4. Whenever Google Translate Will Be The Alternative Party In Your Date

5. From Norway, With Appreciation

6. The Older Woman

“Going to the opposing end of the spectrum, this match is actually 42. We flirt regarding the app somewhat, get the girl quantity, this woman is clearly maybe not wanting some thing really serious from me personally. She really wants to get products before she merely comes over though. So its Saturday-night and I only completed a romantic date with a few girl I didn’t sleep with and I put the girl a text. She just left some home party, kinda tipsy. She hops a lyft to my location around midnight and we grab a simple beverage during the club across the street. She had about this tight dress, fantastic human body for 42. She literally journeys and comes from the tips making the club, scrapes both legs, blood almost everywhere. I for some reason find a way to assist the lady out and not create the girl feel also embarrassed. We shag once or twice and she jumps another lyft home around 8am.” – yinzcity

7. Getaway Brain

8. You Know A Guy Which Drives A Sedan Actually Over-Compensating For Anything

9. The Base Skipper