VENTUR motor Germany VENTUR model VENTUR price

VENTUR motors consist of the motor body and the driver, representing a typical mechatronic product. Brushless motors refer to motors without brushes and commutators (or slip rings), also known as commutator-less motors. As early as the nineteenth century, when motors were first invented, the practical motors produced were of the brushless type, namely AC squirrel-cage asynchronous motors, which were widely used. However, asynchronous motors have many insurmountable drawbacks, resulting in slow development of motor technology. Transistors emerged in the mid-twentieth century, leading to the emergence of DC brushless motors that use transistor commutation circuits to replace brushes and commutators. This new type of brushless motor is called an electronically commutated DC motor, which overcomes the drawbacks of the first generation of brushless motors.

VENTUR motor protection

Motor coils are usually wound with very fine copper wire and have poor current-carrying capacity. When the motor load is high or the motor stalls, the current flowing through the coil increases rapidly, causing the motor temperature to rise sharply, which can easily burn out the copper windings. If a polymer PTC thermistor is connected in series with the motor coil, it provides timely protection during motor overload, preventing the motor from burning out. The thermistor is usually placed near the coil so that it can sense temperature more easily, making the protection faster and more effective. For primary protection, thermistors with a higher voltage rating, such as the KT250 type, are typically selected. For secondary protection, thermistors with lower voltage ratings, such as KT60-B, KT30-B, KT16-B, and chip-type motor thermistors, are typically selected.

VENTUR motor advantages

The motor consists of the motor main body and the driver, representing a typical mechatronic product. The stator windings of the motor are mostly configured in a three-phase symmetrical star connection, very similar to three-phase asynchronous motors. Permanent magnets that have been magnetized are attached to the rotor of the motor. To detect the polarity of the motor rotor, position sensors are installed inside the motor. The driver is composed of power electronic devices and integrated circuits. Its functions include: receiving start, stop, and brake signals from the motor to control the motor's starting, stopping, and braking; receiving position sensor signals and forward/reverse rotation signals to control the switching of power transistors in the inverter bridge to generate continuous torque; receiving speed commands and speed feedback signals to control and adjust the rotational speed; and providing protection and display functions.

VENTUR motor fault analysis

The oil pressure in the motor fuel system has a direct impact on the mixture concentration, so the fuel pressure should be checked first. The method is to connect a fuel pressure gauge into the fuel line, then start the engine and measure the fuel pressure. If the fuel pressure is too high, the pressure regulator should be replaced. If the pressure is too low, pinch the return hose; if the fuel pressure rises to the normal value, it indicates that the fuel pressure regulator is damaged; otherwise, check the fuel pump and fuel filter. After shutdown, check that the fuel pressure remains at the specified value 5min; otherwise, it indicates injector leakage, leading to an overly rich mixture. When starting is difficult, the fuel pump is generally working normally; the problem is often a clogged pump strainer preventing the pump from sucking in sufficient fuel, or a blocked fuel filter causing insufficient pressure in the fuel supply system. Some vehicle models are equipped with a cold start injector, which enriches the mixture during cold starts to improve cold start performance. The cold start injector is controlled by the start switch and a thermal time switch. The injection duration depends on the current in the heating coil of the thermal time switch and the temperature of the cooling water. Faults in the cold start system often manifest as: the cold start injector being clogged with gum, affecting spray atomization quality and causing difficult cold starts; failure of the cold start injector to work properly; short circuit (contacts normally closed) or open circuit (normally open) of the thermal time switch. If the contacts are normally closed, the thermal time switch continues to control the cold start injector to inject excessive fuel even when the engine is warm, causing difficult hot starts. If the thermal time switch is shorted, the cold start injector will never operate, causing difficult cold starts.

Weidou Intelligent Technology specializes in selling German VENTUR motors, VENTUR motors, VENTUR drives, VENTUR synchronous motors, VENTUR servo motors, VENTUR DC motors, VENTUR AC motors, VENTUR stepper motors, VENTUR synchronous motors, VENTUR asynchronous motors, VENTUR single-phase motors, VENTUR three-phase motors, VENTUR drive motors, VENTUR geared motors, VENTUR electric motors, VENTUR original German imports. Customers are welcome to inquire and order.