The number of electric motors worldwide is projected to exceed 2.25 billion by 2024.
Modern manufacturing has developed rapidly thanks to the use of machinery/machinery. Machines provide speed and precision for production and assembly lines, enabling products to be produced quickly and well. The most important component in accomplishing all of these tasks is the electric motor, also known as a motor. The two most commonly used types of motors are linear motors and rotary motors.
Currently, Guoao Technology has taken the lead globally in developing a linear rotary two-degree-of-freedom servo motor, making it possible to perform linear and rotary motions simultaneously while ensuring high precision requirements.
[Guoao Technology Linear Rotary Motor: Two-DOF Micro-Nano Positioning, Precise Force Control (0.01N)]
The electric motor industry is currently one of the most stable industries globally, with a compound annual growth rate of 7.9%. The global electric motor market reached $126.9 billion in 2018 and is projected to exceed $200 billion by 2025. North America is experiencing steady growth in this market annually, and it is expected to reach $30 billion by 2025.
The chart below shows the market growth of motors in North America in recent years and in the future.
[North American Motor Market Growth]
The Asian market, particularly China and India, is expected to grow even faster, reaching $800 billion by 2025. These two countries will account for nearly 40% of the global automotive industry. The product having the biggest impact in this sector is actually a new product on the market: the brushless direct-drive motor.
Brushless direct drive motor VS Brushed direct drive motor
A brushless direct drive motor is a motor powered by direct current (DC). While it is more expensive than a standard electric or brushed motor, it offers many advantages over its predecessor. Most notably, brushless motors exhibit better performance and less wear compared to brushed motors of similar size.
In a traditional brushed motor, a magnet is mounted on the rotor, positioned between two magnets arranged in a horseshoe shape, collectively known as the stator. When power is supplied to the magnet, the arm moves, aligning the north and south poles of the electromagnet with the opposite poles of the stator. If the magnet cannot change its polarity, it will remain frozen. To keep the motor rotating, the current direction must be switched. Changing the current flips the electromagnet's poles, causing the rotor to continue rotating; the polarity must be rapidly changed back and forth to produce constant rotation.
The change of current is achieved through brushes, which are mounted on the armature near the shaft. As the armature rotates, the brushes alternately engage with contact points on the shaft. These contact points are connected to a power source. By rotating the brushes around these contact points, the current rapidly changes direction, switching the polarity of the electromagnet. Brushed motors are less expensive to produce, but due to their design, they have a much shorter lifespan. The brushes wear down through friction at the contact points and on the shaft. This friction also affects the motor's performance.
Brushless motors are designed in the opposite way. An electromagnet is placed on the stator and surrounded by one or more magnets. Current is switched by a computer or motor controller. The motor operates without any other parts, and since there are no contact parts, there is no friction. All of this makes brushless motors significantly more powerful than brushed motors of similar size. Brushless motors offer superior control, precision, efficiency, and quieter operation. Overheating can be a problem in larger models, but they are easier to cool and do not suffer from brush wear.
Small brushless DC motor
However, brushless motors are much more expensive than brushed motors and are often used only when cost is a factor.
Application prospects of DD motors in the electric vehicle field
Currently, sales of direct-drive vehicles remain at record highs, despite high prices, due to the two main markets: robotics and electric vehicles. Electric vehicles will be the driving force behind this product's growth, at least until 2024. Direct-drive motors are a key component of electric vehicles because they are electrically powered and require electric motors to power their wheels.
Small brushless DC motor
DD motors are the best choice for providing torque or power, making them the optimal solution for starting and smoothly running a car without any delay. They are also the best type of motor in terms of control, facilitating easy starting and quick stopping, which is crucial for vehicle safety.
Major companies in the automotive industry have been working to increase the production of these vehicles. For example, Volkswagen plans to sell 2-3 million electric vehicles by 2025, and many other companies have similar or even higher targets. This sector alone is expected to account for nearly 80% of the automotive industry.
Application prospects of DD motors in the field of robotics
Other markets are expected to be taken over by robotics or manufacturing. Many markets have always been at the forefront of production and manufacturing, and manufacturers are now looking for new ways to improve efficiency. In fact, automation is more efficient than manual labor because it minimizes errors and maximizes work hours. This is why many companies are producing robots to help automate assembly lines, with robotic arms being the most common.
Robotics technology used on assembly lines
This involves DD motors, as each arm has multiple moving joints, and each joint is powered by a DD motor. Similarly, this type of motor plays a crucial role in this field because robotic arms require precise control and high torque to accomplish their designed tasks.
Currently, DD motors are the only products on the market that can provide this service and have a long lifespan. This is why their value continues to increase even though their price is above average.
DD motors developed and manufactured by Guoao Technology
Guoao Technology has been able to produce its own patented DD series motors through research and development.
[Guoao Technology DD Motor]
While it may appear similar to designs from many other companies, it possesses unparalleled advantages: the technology and design of Guoao Technology's DD motor are patented in China. Compared to other companies, Guoao Motor is able to generate torque comparable to any other, yet is lighter and saves more energy.
This motor is currently paired with industrial fans manufactured by Shenzhen Green Tree Technology Co., Ltd. for use in HVAC solutions. The following is a case study of a customer's actual scenario:
Applications of industrial fans in logistics and warehousing
Application of industrial fans in indoor basketball courts
The motor proved capable of providing sufficient torque to power large industrial fans with a diameter of 5 meters or even longer, while consuming only 300 watts of power per hour.
With its innovative design and flexible manufacturing process, this motor can be paired for operation in many different fields. Solutions can be specifically designed to meet individual customer needs and build strong partnerships for the future.
The above are just some successful application cases of Guoao DD motors in the field of industrial large fans. More application examples of Guoao Technology DD motors in the electric vehicle market and the robotics field will be shown to you one by one in the future.
