Brushless motors today are fairly common. These devices are used most often with electric drives. They can also be found on various refrigeration equipment. In the industrial sphere, they are involved in heating systems.
Additionally, the brushless modifications are installed in conventional fans for air conditioning. Nowadays there are many models on the market with and without sensors. In this case, the type of regulators modifications are quite different. However, to understand this issue in more detail, it is necessary to study the structure of a simple engine.
Device brushless model
If we consider the usual three-phase brushless motor, then the inductor has a copper type. Stators are used both latitudinal and pulse. Their teeth are applied in different sizes. As mentioned earlier, there are models with sensors, as well as without them.
Pads are used to fix the stator. The induction process itself takes place at the expense of the stator winding. The rotors are most often used bipolar type. They have steel cores installed. For fixing the magnets on the models there are special grooves. Directly control of the brushless motor occurs with the help of regulators, which are located at the stator. To supply voltage to the external winding, insulating gates are installed in the devices.
Brushless el. engines of this type are often used in freezing equipment. At the same time compressors are suitable for them the most diverse. On average, the power model is able to reach 3 kW. The scheme of a brushless motor coil often includes a double type with a copper winding. Stators are installed only pulse. Depending on the manufacturer, the length of the teeth may vary. Sensors are used both electric and inductive type. For heating systems, these modifications are bad.
It should also be borne in mind that the cores in brushless motors are mainly steel. In this case, the grooves for magnets are used quite 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 of the single-channel type.
The three-digit brushless motor is great for ventilation systems. The sensors he uses are usually electrical. In this case, the coils are set quite wide. Due to this, the process of induction is carried out quickly. In this case, the frequency of the device depends on the stator. The winding is most commonly found in copper.
The limiting voltage of three-digit brushless motors capable of withstanding at 20 V. Thyristor modifications in our time are quite rare. It should also be noted that the magnets in such configurations can be installed both on the outer and on the inner side of the rotor plate.
Four-bit do-it-yourself modifications
It’s absolutely simple to do a four-bit brushless motor with your own hands. To do this, you must first prepare a plate with grooves. The thickness of the metal in this case should be about 2.3 mm. The grooves in this situation must 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, the threshold voltage must be maintained at 20 V.
Pads for the device are most often selected steel. In this case, much depends on the size of the rotor plate. The stator itself must be used with double winding. In this case, the core is important to prepare the steel type. If we consider modifications without regulators, then the assembly of the brushless motor can be completed by installing an insulating gate. In this case, the device contacts must be brought to the outer side of the plate. For a conventional fan, such brushless models are perfect.
Devices with AVR2 regulator
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 use only inductive ones. In this case, the frequency of the device can be monitored by the display system. The pads are usually mounted of a contact type, and they can be mounted directly on the stator plate. The controller of the brushless motor in this case allows you to change the frequency fairly smoothly. This process occurs by changing the parameter of the output voltage. In general, these modifications are very compact.
Engines with AVR5 regulators
The brushless motor with a regulator of this series is often used in the industrial field to control various electrical appliances. In home devices, it is installed quite rarely. The peculiarity of such brushless modifications can be called increased frequency. In this case, the power parameter of them is easy to change. Coils in these modifications are very diverse. It should also be noted that the magnets are most often mounted on the outside of the rotor box.
Closures are mainly used in insulated type. They can be mounted both at the stator box and the core. In general, the adjustment of the device is quite fast. However, the drawbacks of such systems should also be taken into account. In the first place, they are related to power interruptions at low frequencies. It is also important to mention that the models of this type of electricity consumption is quite large. At the same time to control the integrated electric devices are not suitable.
Use of regulators AVT6
This type of brushless motor speed controller is in great demand today. Its distinctive feature can be called universality. Regulators are installed, as a rule, on brushless motors, the power of which does not exceed 2 kW. At the same time, these devices are ideal for controlling ventilation systems. Controllers in this case can be installed a variety of.
The signal transmission rate in this case depends on the type of control system. If we consider thyristor modifications, they have a rather high conductivity. In this case, problems with magnetic interference, they rarely occur. Independently assemble a model of this type is quite difficult. In this situation, closures are most often selected non-insulated.
Models with Hall sensors
Brushless motors with Hall sensors are widely used in heating devices. At the same time, they are suitable for electric drives of various classes. Directly regulators are used only single-channel. Coils in the device are installed copper type. The size of the teeth of the model depends solely on the manufacturer. Directly pads for devices are selected contact type. To date, sensors are most often installed from the side of the stator. However, models with their lower positions are also on the market. In this case, the dimensions of the brushless motor will be slightly larger.
Low frequency modifications
The low-frequency brushless motor is currently actively used in the industrial sector. At the same time, it fits perfectly for freezers. On average, the efficiency parameter is at the level of 70%. Valves for models are most often used with insulators. In this case, thyristor modifications in our time are quite common.
Control systems are used a series of ABP. The frequency of the model depends on the type of the core and not only. Also note 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
The specified modifications are most demanded for resonant electric drives. In industry, such models are quite common. Their sensors are installed both electronic and inductive type. In this case, the coils are most often located on the outer side of the plate. The rotors are mounted both horizontally and vertically.
Directly change the frequency of such devices through controllers. They are installed, as a rule, with a complex contact system. Directly starters are used only double type. In turn, the control systems depend on the power of the brushless device.