In the field of medical and cosmetic, advanced technology and high-quality equipment are the keys to achieving ideal cosmetic results, and the brushless DC pump, as an important component, is playing an increasingly important role.

Working Principle of Brushless DC Pump

The brushless DC pump mainly consists of a brushless DC motor, an impeller, a pump casing and other components. Its working principle is based on the electromagnetic induction principle of the brushless DC motor. The direct current is converted into alternating current through the electronic commutator to drive the rotor of the motor to rotate, and then drive the impeller to rotate. The rotation of the impeller makes the water in the pump cavity generate centrifugal force, thereby realizing the suction and discharge of water and completing the circulation or transportation of the water flow. This integrated design of the motor and the pump makes the brushless DC pump have the characteristics of high efficiency, energy saving and stability.

Application Principle of Brushless DC Pump in Medical and Cosmetic Equipment

1. Cooling System: In some laser cosmetic equipment, radiofrequency cosmetic equipment, etc., a large amount of heat will be generated during operation. If the heat cannot be dissipated in time, it may affect the performance and stability of the equipment, and even shorten the service life of the equipment. The brushless DC pump can be used as the core component of the cooling circulation system to take away the heat generated by the equipment through the circulating coolant, ensuring the stable operation of the equipment at an appropriate temperature. For example, in a well-known brand of laser hair removal device, a brushless DC pump is used to drive the coolant circulation, effectively reducing the temperature of the device during high-energy output and ensuring the stability and safety of the hair removal effect.

2. Cleaning System: In cosmetic cleansing devices and other equipment, the brushless DC pump can be used to provide a stable water flow to achieve deep cleansing of the skin. It can generate a water flow with appropriate pressure and flow rate, and cooperate with the cleansing brush head or other cleansing accessories to completely remove dirt, oil and aged keratinocytes on the skin surface, making the skin cleaner and smoother. For example, a popular cleansing device has a built-in brushless DC pump that can provide a stable water flow of 2 - 5 liters per minute, and the cleansing effect is remarkable.

3. Moisturizing and Nutrient Introduction System: Some cosmetic instruments need to evenly spray or introduce moisturizing essence or nutrient components onto or into the skin surface. The brushless DC pump can precisely control the flow rate and pressure of the liquid, spray the essence or nutrient components onto the skin in the form of tiny droplets, so that the skin can better absorb them, thereby achieving the effect of moisturizing and nourishing the skin. For example, a high-end beauty spray device uses a brushless DC pump to atomize the essence into tiny particles with a diameter of less than 50 microns, making the nutrient components more easily penetrate into the bottom layer of the skin.

Advantages of Brushless DC Pump in Medical and Cosmetic Equipment

Excellent Performance

1. High Efficiency and Energy Saving: Compared with the traditional brushed pump, the brushless DC pump can provide a larger flow rate and higher head under the same power, with higher efficiency, which can save energy and reduce the operating cost of the equipment. The energy-saving effect is more significant when the cosmetic equipment is used for a long time, which conforms to the modern concept of green environmental protection.

2. Stable Operation: The brushless motor has no problems such as brush wear and commutator spark, which reduces the probability of pump failure caused by mechanical wear and electrical faults, and the operation is more stable and reliable. It can work continuously for a long time, reducing the maintenance and replacement cost of the equipment. For example, in some professional cosmetic equipment used in large beauty institutions, the average trouble-free operation time of the brushless DC pump can reach more than 20,000 hours.

Precise Control

1. Adjustable Flow Rate and Pressure: By changing the input voltage of the motor or using PWM speed regulation technology, etc., the flow rate and pressure of the brushless DC pump can be precisely adjusted to meet the needs of different cosmetic equipment in different working states. For example, in some microneedle cosmetic equipment, it is necessary to precisely control the injection volume of drugs or nutrient solutions according to the treatment site and skin condition, and the brushless DC pump can well meet this requirement.

2. Fast Response Speed: The brushless DC pump has a fast response speed to the control signal, and can quickly adjust the working state according to the instructions of the equipment, realizing fast start, stop and changes in flow rate and pressure, improving the operation flexibility and treatment effect of the cosmetic equipment.

Safe and Reliable

1. No Leakage Risk: Due to the adoption of advanced sealing technology and the structural design of the brushless motor, the brushless DC pump effectively avoids the possible water leakage problem of the traditional pump, reducing the risk of damage to the internal electronic components of the cosmetic equipment caused by water leakage, and improving the safety and stability of the equipment. For example, in some high-end cosmetic instruments with complex internal structures, such as photon rejuvenation devices, the non-leakage characteristics of the brushless DC pump ensure the normal operation of the equipment.

2. Multiple Protection Functions: It has multiple protection functions such as over-current protection, over-voltage protection, over-heat protection, and impeller blockage protection. When an abnormal situation occurs, the pump can automatically stop working to avoid further damage to the equipment and users caused by the expansion of the fault. For example, the brushless DC pump in a certain brand of beauty introduction instrument will quickly and automatically cut off the power supply when encountering situations such as the impeller being blocked by foreign objects or abnormal power supply voltage, protecting the safety of the equipment and users.

Quiet and Comfortable

Low Noise Operation: The noise generated during the operation of the brushless DC pump is very low, usually below 30 decibels, which is almost negligible. This provides a quiet and comfortable treatment environment for the users of the cosmetic equipment. Especially in some cosmetic care processes that require long-term use, such as facial hydration and moisturizing care, the advantage of low noise is more obvious, allowing users to enjoy the beauty process more relaxedly.

Small and Lightweight

Space Saving: The brushless DC pump has a small volume and light weight, which is convenient for compact layout and installation inside the cosmetic equipment, making it possible for the miniaturization and portability design of the cosmetic equipment. For example, the popular portable beauty sprayers, cleansing devices and other small and lightweight cosmetic equipment on the market today all benefit from the miniaturized design of the brushless DC pump, which is convenient for users to use anytime and anywhere.

The brushless DC pump, with its many advantages such as high efficiency, stability, safety and precision, plays an indispensable role in medical and cosmetic equipment, providing strong support for the performance improvement and user experience optimization of cosmetic equipment. With the continuous progress and innovation of technology, it is believed that the application of the brushless DC pump in the medical and cosmetic field will be more extensive and in-depth.