Brushless motors are quite common today. These devices are most often used with electric drives. Also they can be found on various refrigeration equipment. In the industrial sphere, they are involved in heating systems.

In addition, brushless modifications are installed in conventional fans for air conditioning. Nowadays many models with and without sensors are on the market. At the same time, by the type of regulators, the modifications are quite different. However, in order to understand this issue in more detail, it is necessary to study the device of a simple engine.

Three-phase brushless motor

Device brushless model

If we consider a conventional three-phase brushless motor, then the inductance coil is set to a copper type. Stators are used both latitudinal and pulse. Their teeth are of different sizes. As mentioned before, there are models with sensors, as well as without them.

Pads are used to fix the stator. Directly the process of induction occurs due to the winding of the stator. Rotors are most often used bipolar type. The cores are installed steel. To fix the magnets on the models there are special grooves. Direct control of the brushless motor is carried out using regulators, which are located at the stator. To apply voltage to the external winding, isolating gates are installed in the devices.

Two-digit models

Brushless electrical. motors of this type are often used in freezing equipment. At the same time compressors for them are very diverse. On average, the power of the model is able to reach 3 kW. The scheme of the brushless motor of the coil most often includes a double type with a copper winding. The stators are only pulsed. Depending on the manufacturer, the length of the teeth may vary. The sensors are used both electric and inductive type. For heating systems, these modifications are not good.

It should also be borne in mind that the cores in brushless motors are mostly steel. In this case, the grooves for magnets are used rather wide, and they are located very close to each other. Due to this, the frequency of the devices can be high. Regulators for such modifications are selected most often single-channel type.

Three-digit modifications

The three-row brushless motor is excellent for ventilation systems. Sensors are used, as a rule, for electrical type. In this case, the coils are set quite wide. Due to this, the induction process is carried out quickly. In this case, the frequency of the device depends on the stator. The winding is most commonly found in copper.

Limit voltage three-row brushless motors are able to withstand at 20 V. Thyristor modifications in our time are rare. It should also be noted that magnets in such configurations can be mounted both on the outer and inner sides of the rotor plate.

Four-digit modifications with their own hands

To make a four-wheelless brushless motor with your own hands can be absolutely simple. For this, it is necessary first of all to prepare a plate with grooves. The thickness of the metal in this case should be approximately 2.3 mm. The grooves in this situation should be at a distance of 1.2 cm. If we consider a simple model, then the coil should be selected with a diameter of 3.3 cm. At the same time, it must withstand the threshold voltage at the level of 20 V.

Pads for the device most often selected steel. In this case, much depends on the size of the rotor plate. The stator must be used directly with a double winding. At the same time it is important to prepare the core of a steel type. If we consider modifications without regulators, then the assembling of the brushless motor can be completed by installing an isolating valve. In this case, the contacts of the device must be brought out on the outside of the plate. For a conventional fan, these brushless models are ideal.

Devices with regulator АВР2

Brushless motor with controllers of this type today is very popular. These systems are suitable most for conditioners. They are also in the industrial field are widely used for refrigeration equipment. They are able to work with drives of different frequency. Coil they usually set-dual type. The stators can be found only impulse. In turn, the latitudinal modifications are not very common.

Sensors in brushless motors with regulators of this series are only inductive. In this case, the frequency of the device can be monitored by the display system. Pads are usually installed contact type, and they can be mounted directly on the stator plate. Regulator brushless motor in this case allows you to change the frequency fairly smoothly. This process occurs due to a change in the output voltage parameter. In general, these modifications are very compact.

Engines with regulators АВР5

The brushless motor with a regulator of this series is often used in the industrial field for the control of various electrical appliances. In household devices it is installed quite rarely. The peculiarity of such brushless modifications can be called increased frequency. In this case, the power parameter for them is easy to change. Coils in these modifications are very diverse. It should also be noted that magnets are most often installed on the outside of the rotor box.

The closures are mainly of an isolated type. They can be mounted both at the stator box and the core. In general, the adjustment of the device occurs quite quickly. However, one should also take into account the shortcomings of such systems. First of all, they are associated with power interruptions at low frequencies. It is also important to mention that the models of this type have a rather large energy consumption. In this case, devices are not suitable for controlling integral electric drives.

Using the AVT6 controls

This type of speed controller brushless motor is currently in great demand. Its distinctive feature can be safely called universality. Regulators are installed, as a rule, on brushless motors, the power of which does not exceed 2 kW. In this case, to control the ventilation systems, these devices are ideal. Controllers in this case can be installed the most diverse.

The signal transmission rate in this case depends on the type of control system. If we consider thyristor modifications, then they have a rather high conductivity. At the same time, problems with magnetic interference are rare in them. It is quite difficult to assemble a model of this type independently. In this situation, the closures are most often selected uninsulated.

Models with Hall sensors

Brushless motors with Hall sensors are widely used in heating appliances. They are suitable for electric drives of various classes. Directly controllers are used only single-channel. Coils in the device are installed copper type. The size of the teeth of the model depends exclusively on the manufacturer. Directly the pads for the devices are selected by the contact type. To date, the sensors are most commonly installed on the stator side. However, in the market there are also models with their lower location. In this case, the dimensions of the brushless motor will be slightly larger.

Low-frequency modifications

Low-frequency brushless motor is currently used extensively in the industrial sector. At the same time for freezers it fits perfectly. On average, the parameter of usefulness is 70%. Shutters in models are most often used with insulators. At the same time, thyristor modifications in our time are quite common.

Control systems are used in the ATS series. In this case, the frequency of the model depends on the type of core and not only. It should also be noted that there are models with double rotors. In this case, the magnets are arranged along the plate. Stators are most often used with copper winding. In this case, low-frequency brushless motors with sensors are very rare.

High-frequency motors

These modifications are considered the most popular for resonant electric drives. In the industry, such models are quite common. The sensors are installed in both electronic and inductive type. In this case, the coils are most often found on the outside of the plate. The rotors are mounted in both horizontal and vertical positions.

Directly changing the frequency of such devices is carried out through controllers. They are installed, as a rule, with a complex contact system. Direct starters are only used in double type. In turn, control systems depend on the power of the brushless device.

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