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.

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.

A shaded pole motor is a type of single-phase induction motor. It is commonly used in small appliances and low-power applications where simplicity and cost-effectiveness are important. The distinguishing feature of a shaded pole motor is the presence of shading coils or "shading poles" on a portion of the motor's stator. These coils are made of a shorted turn of copper wire and are typically placed around a portion of the motor's pole pieces, adjacent to the main field winding. When power is applied to a shaded pole motor, an alternating current (AC) flows through the main field winding, creating a rotating magnetic field. The shading coils, being shorted turns, create eddy currents that also generate magnetic fields that are slightly out of phase with the main field. This phase difference between the main field and the shaded field creates a rotating magnetic field that starts the motor in motion. The rotation of the magnetic field induces currents in the rotor, which in turn creates torque, causing the motor to start and run. The shaded pole design provides the initial rotation needed for the motor to overcome inertia and start rotating. Shaded pole motors are relatively simple and inexpensive, but they have certain limitations. They are generally less efficient compared to other types of motors, have relatively low starting torque, and are typically limited to low power applications. However, their simplicity, compact size, and low cost make them suitable for various small-scale applications such as fans, pumps, and household appliances.

In the field of motors, we commonly use: shaded pole motors, exhaust fan motors and customized pump solenoid valve motors. Each plays a unique role in powering countless applications, from household appliances to complex industrial installations. shaded pole motor At the heart of the small appliance is the shaded-pole motor, a single-phase induction motor known for its clever design. The motor features a shielded coil or ring that generates a rotating magnetic field that drives the motor. Shaded pole motors are widely used in fans, refrigerators and other low-power devices and are stalwart providers of reliable power. exhaust fan motor The exhaust fan motor is a generator specially designed for the important task of ventilating a space. Compact and energy-saving, this motor finds its place in ventilation systems to effectively remove air or smoke from enclosed environments. Its strong construction and performance make it ideal for maintaining a breath of fresh air and ensuring a comfortable environment. Custom pump solenoid motor For custom applications that require precision and control, custom pump solenoid motors come into focus. The motor is customized to the unique specifications of the pump and solenoid valve, with custom configurations of torque, speed and power. It is widely used in industrial processes requiring fine fluid flow control and is a testament to innovation and adaptability. In daily life and industry, these motors are not just components but important building blocks. They are the quiet, reliable engines that drive progress. From the cool breeze of a fan to complex industrial fluid management, these motors are the unsung heroes whose design and performance ensure seamless operation. As we continue to innovate and customize these motors, we unlock new possibilities in different areas. Their adaptability and reliability make them more than just motors, but the cornerstone of efficiency and functionality, powering the world around us with precision and purpose.

Shaded pole motors are a type of single-phase induction motor. Unlike other types of single-phase induction motors, shaded pole motors don't use a start capacitor or a start winding to kickstart rotation. Instead, they rely on a simple design that creates a rotating magnetic field. The rotor of a shaded pole motor is made of a solid metal cylinder or a stack of metal laminations. The rotor typically has a unique design where a portion of it is surrounded by a copper or aluminum shading coil. This coil is responsible for creating the shaded pole effect, which induces a phase shift in the magnetic field and creates the starting torque needed for the motor to begin rotating. The materials used in the rotor of a shaded pole motor are typically low-cost metals like aluminum or steel. These materials provide the necessary magnetic properties and mechanical strength required for the motor to operate efficiently. The rotor may also be coated or treated to prevent corrosion and improve its longevity. Overall, the rotor structure and materials of a shaded pole motor are designed to be simple, cost-effective, and reliable for applications where low starting torque and continuous operation are required, such as in small fans, appliances, and some HVAC systems. Established in 1992, Keli motor has become one of the largest micro motor R&D, manufacturers, and exporters in China, its No. 1 sales and production of shaded pole motors. In addition to shaded pole motors, we also produce and sell stepper motor, universal motor, BLDC motor, etc.

To our valued customers, We cordially invite you to join us at PARS HOMEX, to explore the latest in motor technology! #Shaded Pole Motors, Pump Motors, Step Motors, Universal Motors, Brushless Motors, Servo Motors, Crossflow Blowers #Tehran International Permanent Fairground Exhibition Dates: August 9-12, 2024 Opening Hours: 9:00 AM - 6:00 PM Booth Number: Hall 40/40A, 37 Venue Address: Chamran Expressway, Vali-e Asr Ave., Tehran, Iran We will be showcasing our latest motor products and technological innovations at the expo. looking forward to seeing you at the expo! Warm regards: #KELI MOTOR GROUP CO., LTD. #SHENZHEN KELI MOTION CONTROL TECHNOLOGY LTD.