Dears, We are delighted to extend to you a sincere invitation to participate in the upcoming 135th Canton Fair Phase 1. Exhibition Time: April 15th to April 19th, 2024 Booth No.: 4.2I52-55 Address: 382 Yuejiang Middle Rd, Haizhu District, Guangzhou, China We believe that your participation will add value to the exhibition and bring about more business opportunities. Additionally, the fair will provide valuable industry insights and cutting-edge technologies to help you stay ahead in the market and expand your business. We look forward to your presence! Should you have any questions or require further information, please feel free to contact us.

Dears, We are delighted to extend to you a cordial invitation to participate in the 2024 China Household Appliances and Consumer Electronics Expo, scheduled to take place from March 14th to March 17th, 2024, at the Shanghai New International Expo Center. This event promises to be an exceptional platform for exploring the latest trends and innovations in the household appliances and consumer electronics industry. Here are the detailed specifics of the exhibition: Exhibition Period: - March 14th to March 16th, 2024, 09:00-18:00 - March 17th, 2024, 09:00-12:00 KELI Booth NO.: N1-1C66 Address: Shanghai New International Expo Center, 2345 Longyang Road, Pudong New Area, Shanghai, China We believe that your participation will greatly contribute to the success of the expo and facilitate valuable exchanges within the industry. We look forward to welcoming you and your team to this prestigious event. Should you require any further information or assistance, please do not hesitate to contact us. We eagerly anticipate your presence and participation at the 2024 China Household Appliances and Consumer Electronics Expo.

Dears, Welcome to the upcoming 36th China International Medical Device Design and Manufacturing Technology (Spring) Exhibition. The exhibition will take place from April 11th to April 14th, 2024, at the National Exhibition and Convention Center in Shanghai. We are looking forward to exploring the latest technologies and development trends in the medical device field with you. Here are the specific details of the exhibition: Exhibition Period: - April 11th to April 13th, 2024, 8:30 AM to 5:00 PM - April 14th, 2024, 8:30 AM to 4:00 PM KELI Booth Number: 8.1G10 Address: No. 333 Songze Avenue, Qingpu District, Shanghai, China We believe that your participation will enrich the content of the exhibition and contribute to the development of the medical device industry. We look forward to your presence and sincerely hope to share this valuable opportunity for exchange with you. Should you require any further information or have any questions, please feel free to contact us. We look forward to your response and anticipate meeting you at the exhibition.

A brushless DC (BLDC) motor, also known as an electronically commutated motor, is a type of synchronous motor that operates based on the principles of a permanent magnet and electronic commutation. BLDC motors have a rotor with permanent magnets and a stator with several coils. Unlike a traditional brushed DC motor, BLDC motors use electronic commutation instead of brushes and commutator to control the power to the coils. The electronic commutation is typically done with the help of a sensor or sensorless control algorithm, which provides precise control over the motor's rotation. A shaded pole motor is a type of single-phase induction motor. It gets its name from the shading coils or copper rings that are added to the stator poles to create a rotating magnetic field. When an alternating current is applied to the motor, the magnetic field generated by the shading coils creates a phase shift, which induces a starting torque in the motor. The main difference between a brushless DC (BLDC) motor and a shaded pole motor lies in their construction and mode of operation. 1. Construction: - Brushless DC Motor: A BLDC motor consists of a rotor with permanent magnets and a stator with windings. The rotor magnets are typically mounted on the motor shaft, while the stator windings are located in the motor housing. - Shaded Pole Motor: A shaded pole motor has a cylindrical stator with a number of evenly spaced poles. Each pole has a portion called a shading coil or shading ring, which is made of a shorted turn of conducting material. 2. Operation: - Brushless DC Motor: BLDC motors operate on the principle of electronically commutating the stator windings using a controller. The controller senses the rotor position through sensors or back electromotive force (EMF) and energizes the appropriate stator windings to generate rotational torque. As the rotor magnets pass the energized stator windings, the motor rotates. - Shaded Pole Motor: Shaded pole motors operate on the principle of induced current in the shading coils due to a rotating magnetic field. When an AC current is applied to the stator winding, a magnetic field is created, and due to the asymmetrical placement of the shading coils, the magnetic field lags behind in certain regions. This time lag generates a secondary magnetic field in the shading coils, which creates a rotating magnetic field. The resulting interaction between the rotating magnetic field and the main magnetic field causes the rotor to rotate. 3. Performance: - Brushless DC Motor: BLDC motors generally offer higher efficiency, better controllability, and higher torque-to-inertia ratio. They can have smoother operation, higher speeds, and better speed control compared to shaded pole motors. These motors are commonly used in applications that require precise control, such as robotics, industrial automation, and electric vehicles. - Shaded Pole Motor: Shaded pole motors are simpler in design and less expensive compared to BLDC motors. However, they generally have lower efficiency and lower torque output. Shaded pole motors are often used in small household appliances, such as fans, refrigerators, and air conditioners. Overall, the key distinction between a brushless DC motor and a shaded pole motor lies in the technology used for their operation, resulting in differences in construction, control, and performance characteristics.

When it comes to the functionality of an exhaust fan, understanding the inner workings of its motor is crucial. In many exhaust fan systems, the shaded pole motor is a common choice due to its simplicity and reliability. In this article, we delve into the mechanisms behind the operation of an exhaust fan motor shaded pole, shedding light on the principles of single-phase shaded pole motors and their specific application in exhaust fan systems. Exploring the Basics: Single Phase Shaded Pole Motor Single phase shaded pole motor is a type of AC motor commonly used in applications requiring low power output and simple construction. These motors operate on the principle of induction, where the rotating magnetic field is generated by the interaction between the stator and rotor windings. Understanding the Shaded Pole Effect What sets shaded pole motors apart is their unique design feature called the shaded pole effect. This effect is achieved by adding a copper or aluminum shading coil around a portion of the pole face. During operation, the shading coil delays the establishment of magnetic flux in that portion of the pole, creating a phase shift between the magnetic fields. This phase shift results in a rotating magnetic field, which sets the rotor in motion. Application in Exhaust Fan Systems In exhaust fan systems, the shaded pole motor plays a vital role in driving the fan blades to expel air from the environment. The simplicity and cost-effectiveness of shaded pole motors make them ideal for such applications, where continuous operation and moderate airflow requirements are typical. Working Principle of Exhaust Fan Shaded Pole Motor The operation of an exhaust fan shaded pole motor begins with the application of AC voltage to the stator windings. As the alternating current flows through the windings, it induces a magnetic field. However, due to the presence of the shading coil, the magnetic flux in one portion of the pole lags behind, creating an imbalance in the magnetic field. This imbalance leads to the generation of a rotating magnetic field, which exerts a torque on the rotor and initiates rotation. In summary, the shaded pole motor serves as the driving force behind the operation of exhaust fan systems, providing a reliable and cost-effective solution for ventilation needs. By harnessing the principles of single-phase induction and the shaded pole effect, these motors deliver efficient performance in a variety of environments. Understanding the inner workings of these motors enhances our appreciation for the engineering behind everyday appliances like exhaust fans. By unraveling the mystery behind how shaded pole motors operate in exhaust fans, we gain insights into the ingenuity of motor design and its practical applications in improving indoor air quality and comfort.

A stepper motor is an electromechanical device that converts electrical pulses into precise mechanical motion. It is designed to move in discrete steps, hence the name "stepper" motor. Unlike conventional motors that rotate continuously, stepper motors rotate incrementally, typically in steps of 1.8 degrees (for a motor with 200 steps per revolution). The basic construction of a stepper motor consists of multiple toothed electromagnets arranged around a central rotor. The rotor is typically made up of a permanent magnet or a soft magnetic material. The number of teeth on the rotor is usually a multiple of the number of electromagnets surrounding it. Stepper motors require a specialized driver circuit to control their motion. This driver circuit delivers precise sequences of electrical pulses to the motor windings, which in turn produce the rotational movement. The most common types of stepper motors are bipolar and unipolar motors: 1. Bipolar Stepper Motor: A bipolar stepper motor has two windings or phases, and each phase can be controlled independently. The windings have a center tap, and the motor can have either four or eight leads. Bipolar motors provide more torque compared to unipolar motors but require more complex driver circuits. 2. Unipolar Stepper Motor: A unipolar stepper motor has multiple windings with a center tap for each phase. The windings are typically energized in a specific sequence to create the steps. Unipolar motors are easier to control but generally provide less torque than bipolar motors. To rotate the stepper motor, the driver circuit applies voltage or current to the motor windings in a specific sequence. The most common sequence is known as "wave drive" or "one-phase on." In this mode, the driver energizes one phase at a time and steps through the phases in a cyclic manner to rotate the motor. More advanced driving techniques, such as "full step," "half-step," or "microstepping," can be used to achieve smoother motion or finer positioning. These techniques involve different energization patterns for the motor windings, which divide a full step into smaller increments. Keli motor as one of the largest micro motor R&D, manufacturers, and exporters in China,we mainly supply shaded pole motor, stepper motor, DC brushless motor,etc.

Shaded pole motor is a very important type of motor. We may encounter some problems or failures when using shaded pole motors. If we do not understand shaded pole motors, we may face such embarrassment and be at a loss. In order to avoid this situation, let's take a look at the characteristics and fault types of shaded pole motors. Features: 1. Reasonable structural design, flexible lead-out direction, and the shaded pole motor junction box itself can be rotated and installed. 2. Superior shaded pole motor performance, low noise, low vibration, high performance protection level 3. Numerous options to meet various user needs for installing thermistors 4. Adopting optimized design, it has high efficiency and can produce considerable energy-saving effects. 5. Install various requirements such as dust-proof sealing ring, heating belt, oil-proof sealing ring, oil injection, special shaft extension, special flange, etc. Fault type: 1. Insulating skeleton or insulating material The skeleton is generally injection molded. The quality of the mold, the control of the injection molding process, and the cleanliness of the plastic particles will all cause defects. The defects in the skeleton or insulation material include the following categories: (1) The skeleton is short of material; (2) Damage; (3) Worn out by the short-circuit ring; (4) The skeleton contains impurities; (5) There is oil and other dirt on the surface of the skeleton; (6) The insulation sheet is punctured. 2. Thread hanging during wire package winding process During winding, on the one hand, the stator and the frame do not fit closely together; on the other hand, the winding needle of the winding machine may not be adjusted to be completely in the middle and upper part of the frame. During winding, there is a certain arc when winding the needle with the wire, which may cause the enameled wire not to be as designed. When the track is embedded in the wire package, there will be wire hanging, that is, the enameled wire is not wound on the plastic skeleton. There may be one or more loops wrapped around the inner or outer groove wall of the skeleton groove or slipping from the gap between the skeleton and the silicon steel sheet stator. It is directly wound on the stator. This type of fault occurs most frequently. Other undesirable phenomena include: (1) The first loop of thread hanging at the beginning of winding; (2) The skeleton has burrs and the wires are stuck and cannot be embedded; (3) Waste wires fell into the wire package during the production process; (4) The wire package is deviated to one side or fully out. 3. Hanging wires caused by wiring process (1) The connectors between the wire packages are not arranged and stuffed into the frame after welding, and the wire ends are too close to the stator and end cover; (2) The last ring of enameled wire loosened and fell out of the frame without being found. Pull it directly from the outside of the frame and from the stator; (3) Floating wire at the lead-out; (4) The thermal protector extrudes the wire. The general structure is to wrap the enameled wire around the copper core wire of the thermal protector lead and cover it with a sleeve for insulation protection. However, if it is misaligned, it will cause breakdown. To sum up, the characteristics of the shaded pole motor determine that it has certain advantages compared to ordinary fans, but it also has certain defects, so we should pay attention to these two sides of the shaded pole motor. The fault types of shaded pole motors are quite complex, and we should be patient and meticulous when conducting fault analysis. Our company has a wide range of shaded pole motors, including not only Single Phase Shaded Pole Motor, but also Air Fryer Shaded Pole Motor. If you have any questions about shaded pole motors, you can contact us at any time.

Shaded pole motors commonly used in home appliances, also known as asynchronous motors, have several characteristics that make them ideal for use in home appliances. This type of motor has a simple and reliable design and is suitable for different applications in many home appliances such as washing machines, vacuum cleaners, blenders, etc. Here are some of the reasons why shaded pole motors are the first choice for home appliances: Simple structure and low manufacturing cost: The structure of the shaded pole motor is relatively simple, including a fixed stator and a rotating rotor. This makes the manufacturing process relatively easy and less expensive. In the context of mass production, manufacturers can produce shaded pole motors more economically, reducing the overall cost of household appliances. High Efficiency and Reliability: Shaded pole motors are designed for high efficiency and reliability. They do not require the use of carbon brushes, thus reducing the likelihood of wear and the need for periodic replacement parts. This reliability makes home appliances more durable and reduces the need for maintenance and repairs. Good starting characteristics: Shaded pole motors have good starting characteristics and can be started directly without the need for additional equipment. This is very important for some home appliances, such as washing machines, because users want the device to start up quickly and run normally. Compact size: Shaded pole motors have a small size relative to the power output, which makes them suitable for home appliances where space is limited. For some small appliances, such as blenders and vacuum cleaners, the compact design of shaded pole motors makes them easy to integrate and install. Suitable for different loads: Shaded pole motors are suitable for various loads and can operate effectively from light loads to heavier loads. This makes them suitable for different types of household appliances, from oven shaded pole motor to large washing machine motors. The design and performance of the shaded pole motor make it an ideal choice for home appliances. Its simple, reliable and efficient features meet the performance and economy requirements of home appliance manufacturers and consumers. As technology continues to develop, other types of motors may enter the home appliance market, but for now, shaded pole motors remain a widely used and well-performing option.

In the field of industrial automation, stepper motor technology has become an indispensable key component due to its precise control, high reliability and adaptability. As a type of electric motor, stepper motors enable high-precision position control through discrete step motion, providing superior performance and reliability for automation systems. This article will provide an in-depth look at the key role of stepper motor technology in industrial automation and its importance in improving production efficiency and precise control. 1. High-precision positioning and control: Stepper motors can achieve very high-precision positioning control through step-by-step motion. In automation systems, such as robots, CNC machine tools and other equipment, stepper motors are widely used in tasks that require accurate position control. Its discrete step motion ensures that each step of movement can be accurately controlled, ensuring high precision and repeatability in the production process. 2. Flexibly adapt to different loads: Stepper motors are able to provide stable performance when the load changes, making them highly adaptable in industrial automation. Whether it is light load or heavy load, stepper motors can achieve precise motion through control algorithms to ensure the stability and reliability of the system. 3. Simplify the control system: The control of stepper motors is relatively simple. It only needs to provide appropriate electrical pulse signals to achieve step motion. This simplifies control system design, reduces complexity, and reduces cost. At the same time, stepper motor controllers are usually easier to integrate into industrial automation systems, improving the stability of the overall system. 4. Low speed and high torque motion: Stepper motors are capable of delivering high torque at low speeds, making them excellent in applications that require high precision and torque. In some production line tasks that require slow speed and high torque, stepper motors can accurately perform tasks to ensure product quality and consistency. 5. Highly integrated: Modern stepper motors often have highly integrated designs, including drive electronics. This integrated design simplifies system installation and maintenance, increases system reliability, and reduces reliance on external controllers. Stepper motor technology plays an indispensable key role in industrial automation. Its characteristics of high precision, adaptability and simplified control system make it an ideal choice for position control in automation systems, providing a stable and efficient solution for industrial production. As a professional motor manufacturer, Keli's Stepper Motor includes not only Industrial stepper motor, but also 3D printer stepper motor. In the future, stepper motor technology is expected to continue to play a more important role in industrial automation.

Dear Clients, We would like to invite you to visit our recent fair, CHINA(MEXICO) TRADE FAIR 2022, On June 14-16,2022. Hall 1&2, Mexica keli is always continuing to focus on the R&D of core technology, and launch leading products in the world, which can be applied to intellignet home appliances, industrial robots, 5G mobile stations, 3D printers, lithium batteries, new energy, intelligent security, and other fields. We also provide our customers with advanced solutions and high-quality products. We ahhere to the Chinese spirit of craftmanship, and insist on the concept pf "seeking truth and pragmatism, striving for perfection and being brave in innovation". We are committed to building a world-class national brand of motor and drive control system in China, promoting human industrial civilization and progress, and striving to provide continuous intellignet power for global users. We are waiting for you...! We believe, then we see.

China International Medical Equipment Fair at Shenzhen Exhibition Center(Bao'an) Time: Nov 23th-26th, 2022 Our booth #15L39Welcome to drop by! #medicalfair #kelimotor

Shaded pole motors are a type of single-phase induction motor that have several unique characteristics. Some of the key characteristics of shaded pole motors are: 1. Simple design: Shaded pole motors are relatively simple in design and construction compared to other types of induction motors. 2. Low starting torque: Shaded pole motors have a low starting torque, which makes them unsuitable for applications requiring high starting torque. 3. Small size: Shaded pole motors are small in size, making them suitable for applications where space is limited. 4. Low speed: Shaded pole motors typically have low operating speeds, which limits their use in applications that require high-speed operation. 5. Low efficiency: Shaded pole motors are less efficient than other types of induction motors, which can result in higher energy costs over time. 6. Low power output: Shaded pole motors have a low power output, typically in the range of a few watts to several hundred watts. 7. Constant speed: Shaded pole motors have a constant speed, which makes them suitable for applications where constant speed is required. 8. Relatively quiet operation: Shaded pole motors typically operate relatively quietly, making them suitable for use in environments where noise is a concern. Despite these limitations, shaded pole motors are widely used in a variety of applications due to their simplicity, small size, and low cost.