Miniature DC water pump is used to deliver liquid or make liquid pressurized machinery, often used in water dispenser, coffee machine and other equipment. The traditional micro water pump usually uses the brush motor, the volume is large, when the pump is working, the rotor continues to rotate to form the carbon brush wear, easy to produce sparks and large noise, the medium into the gap between the stator and the rotor is easy to burn the motor, the service life is short.
Miniature dc pumps explain the fundamental structure, the micro dc water pump end cover the front set into the hole, end cover side set the plughole, end cover inlet opening and shell after jack between axial extension of the rotor shaft, set up a permanent magnet rotor can turn the setting on the rotor shaft, described after the end cover and cohesion between shell and form a water cavity, Described put in water chamber, permanent magnet rotor impeller shell after the back-end set ring slot, slot has been equipped with the stator laminations and circuit board, around a coil winding on the stator laminations, circuit board set on has extended to the outside of the shell after the power cord, shell slot slot area after sealing set is composed of epoxy resin back cover, wear is located in the back cover on the power cord.
Micro DC water pump coil winding energized can produce a magnetic field so that the permanent magnet rotor set in the jack rotation, because the permanent magnet rotor with a impeller, the impeller rotation can promote the water in the water chamber can be discharged from the water outlet hole, to complete the purpose of liquid delivery. Micro DC water pump adopts brushless motor, do not need to set the carbon brush, permanent magnet rotor and stator blade through the back shell to stop isolation, effectively prevent the traditional use of brush motor micro water pump disadvantages.
Our mini pump air pump has been strictly tested for noise within 50dB.
Because the end cover is connected with the back shell through thread, it is easy to disassemble and assemble. The stator stamping plate and circuit board can be inserted in the slot of the back shell, and stop packaging through the back cover at the slot, which can avoid water entering into the damage of the back cover, which is made of epoxy resin also has a certain insulation effect. Miniature DC water pump is simple in structure, compact in size, more stable in use and longer in life
Miniature DC WATER PUMP ADOPTS HIGH EFFICIENCY AND LOW ENERGY CONSUMPTION INDUCTION ELEMENT, with intelligent electronic drive line, THE use of scientific fluid design, so that the comprehensive performance improved by 20% compared with the traditional water pump, at the same time, the common design makes the water pump more quiet, more stable. Very suitable for water circulation, heat dissipation system and fountain landscaping.
Micro DC PUMP is the ideal replacement of traditional DC brush motor pump, can complete the function of DC brush pump, and the life is more than 20 times of DC brush pump. Brushless DC water pump low noise, no reversing spark, no electromagnetic interference and other characteristics.
Micro DC water pump has a lot of conditions will appear loud (not necessarily the sound of the water pump)
1, lack of water, the motor is idling, the sound will increase significantly;
2, the water pump working time is too long in the inside of the scale will produce noise;
3, inlet infarction will produce negative pressure shivering;
4, the water pump is generally used two DC motor, electronic components are not good match will have a subtle high-frequency sound.
5, the rotor is also the biggest source of noise. Rotor and shaft tolerance is too large, the noise is large.
In order to achieve the ultimate silence of the miniature DC pump, the first step is to control the tolerance to the best size in the construction and design. The mold must use fine mold, the main processing process data selection must use raw materials, recycled materials are not high precision main structure. Secondly, the miniature DC pump stator parameters should be designed to match the main body height, the speed can not be too fast, because the noise is proportional to the speed, but the speed can not be too slow. The pump will not reach the best performance. Reduce the operation efficiency, too low speed will also make the rotor swing unstable.
Host structure and parameters processing, and assembly is equally important, the circuit board must be waterproof disposal, connection power line shall not have welding, welding not only affect the life of the pump, but also produce high-frequency current sound. Any water pump will have large or small vibration, so it will add rubber pad, micro DC water pump is no exception, micro DC water pump rubber pad must use silica gel data. The normal data will harden and the noise will increase accordingly. Do this, a quiet performance of the miniature DC pump is consumed.