Dc brushless pump refers to a machine that uses DC 4.5V～24V to drive a brushless motor. The rotation of the brushless motor drives the rotation of the impeller, thereby increasing the pressure of the liquid to achieve the effect of transferring the liquid. The DC brushless water pump uses DC to supply power. The motor is a brushless motor, which usually works with 6V, 12V and 24V DC. The brushless motor is different from the traditional motor. The traditional motor is brushed, which uses the contact between the carbon brush and the solenoid coil to change the direction of the motor's magnetic field. After a long time, the carbon brush and the coil cannot contact, and the motor cannot work. Brushless motor uses the electronic induction element on the control board to sense the commutation without the contact of carbon brush, thus avoiding the contact wear of carbon brush, which can greatly improve the use and working life of the motor.
Dc brushless pump mainly contains two points:
1. The attribute of the working current is direct current, which generates a stable and stable current. The common DC12V and DC24V are generally lower than 36V. Such currents are safe currents, and there is no danger of electric shock if the human body comes into contact with this current. , Is a safe voltage. The traditional water pump power supply is 220V AC, so you must pay attention to the safe use of electricity, otherwise there will be a risk of electric shock.
2. The motor of the water pump is a brushless motor, and the brushless motor uses electronic components to induce commutation. There is no carbon brush, so it is called a brushless motor. Without carbon brushes, there will be no wear and no damage to the motor, which greatly increases the service life of the pump motor.
Features of dc brushless pump：
1. Long life, no maintenance, small size, high efficiency, low power consumption
2. Excellent design structure: the water pump head is connected with the motor rotor cavity, and the motor rotor cavity is completely isolated from the motor stator, so that it is completely waterproof and leak-proof and the motor water pump has high efficiency
3. Safety and health, environmental protection and energy saving (because the brushless is electronically controlled reversing solid, no sparks, no carbon brush dust pollution).
4. The axis of the water pump adopts high-performance ceramic shaft, which has high precision, good wear resistance, and extremely low sound. It can be used for water bed circulation, water bed heating, etc.
5. The three-phase DC pump in the water pump can realize PWM speed regulation, analog signal input speed regulation, and potentiometer manual speed regulation, which can realize the adjustment of head and flow.
6. Three-phase brushless water pump, with impeller rotor jam protection, reverse connection protection, overload protection, overcurrent protection.
7. Three-phase brushless water pump, controlled as soft start, no impact, low power consumption at start.
8. The water pump can be fully submerged or not submerged (the installation position is lower than the liquid level)
9. The pump can be customized according to user requirements and designed according to customer requirements
10. Three-phase brushless motor can withstand high temperature of 100 degrees
How to select the brushless DC water pump should pay attention to the following aspects:
1、 Medium: The medium of the water pump must be considered. For example, if there are chemical pumps that require corrosion resistance, such as clean water pumps, high-temperature pumps, etc., the nature of the medium must be determined first.
2、 Select the pump nature, such as centrifugal pump, which has no suction head, and diaphragm pump has suction head
3、 Select the appropriate head flow. Generally, the pump has such parameters marked
4、 Select the correct voltage and pay attention to the positive and negative poles. The positive and negative poles of the DC water pump are not allowed to be connected in reverse. The applicable range of voltage is relatively small.
5、 Select appropriate inlet and outlet shape and diameter
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