Background

Over the years the mini BLDC rotary compressor has been developed to cater to a whole host of categories, which are growing and upgrading all the time. But it is quite daunting as there are so many out there and they all have different features and functionalities. To avoid you dizzy by the dazzling display of all types of compressors on the market, here we sort out the list for your better reference.

The Definition of Compressor

Before talking about the mini BLDC rotary compressor, let’s get a short glance at what a compressor is.

Compressors play an irreplaceable role in production and life. They are key components in refrigeration and air conditioning applications. Compressors are the “heart” of such appliances, comparable to a car engine or even a human heart.

The compressor is a fluid mechanical device that pumps low-pressure gas to high-pressure gas by reducing its volume. The main uses of compressors include aerodynamics, refrigeration and air splitting, synthesis and polymerization, gas transportation, etc., in machinery manufacturing, chemical and petrochemical, mining and metallurgy, Refrigeration and gas classification, textile and clothing, food and pharmaceuticals, transportation and other industries.

Classifications of Compressors

According to the media, compressors can be divided into air compressors, refrigerant compressors, and other media compressors.

Air compressors are mainly used to provide air power driving a variety of wind-driven machinery. Also, it can be applied for remote transport of gas and natural gas, spray sandblasting, synthetic polymerization of chemical materials, high-pressure blasting mining, etc… Refrigerant compressors work with refrigerant media. They are the core of air conditioning and refrigeration systems.

Air compressor and refrigeration compressor is the main compressor types. The combined market size of the two accounts for 80% of the total compressor market, of which the air compressor market accounts for about 60%

Based on the structure principle, the compressor can be divided into a positive displacement compressor and a dynamic compressor.

A positive displacement compressor is a system that increases the vapor pressure by compressing the air of its displacement and shrinking its volume. It is normally used in refrigeration systems, air conditioning units, and pumping areas. Positive displacement compressors can be subdivided into reciprocating, rotary, etc.. Rotary compressors are used in small refrigerated systems.

Dynamic Compressors rely on the high-speed rotating impeller that increases the gas flow velocity and molecules’ kinetic energy, and then reduces the air velocity in order, making the kinetic energy converted into pressure energy.

The Definition of Mini BLDC Rotary Compressor?

The mini BLDC rotary compressor is defined as a refrigeration compressor with a cooling capacity of less than 1 kW. It offers compact, less weight, highly efficient, low-consumption, quiet, low-vibration, and precise control features. They can be said to be tailor-made for cutting-edge refrigerated systems which enables them the perfect choice for mobile or portable thermal management in compact solutions.

MOIR’s compressors are variable-speed mini bldc rotary inverter refrigeration compressors, driven by brushless dc motors. They are the smallest ones in the world. The rotary compressor is a kind of positive displacement compressor, the cylinder working volume change, is dependent on an eccentric device of the cylindrical rotor in the cylinder rolling to achieve. It is mainly composed of a cylinder, motor, crankshaft, slide, and other components. The mini compressors are developed for extremely hot environments and confined spaces. They are used across a range of applications, fulfilling a variety of demands from military, medical, industry, laser, and other electronic components.

The Advantages of the mini BLDC rotary compressor?

At MOIR, we realize the increasing requirements and importance of mini refrigeration for active thermal management in ultra-compact applications. Hence, we engineered and developed a wide range of micro dc rotary compressors. The advantages of the mini rotary compressor are substantial.

1. Smallest Size & Footprint

The miniature dc compressor is closed to a palm size and can case and weighs only 720g(including the lubrication oil). It is lightweight and compact, ideal for portable or mobile thermal management applications where space and weight are critical. Because of its compact design, it also can cut down the international shipping fee, save the precious floor, save weight, and lower power consumption. Compared to traditional compressors, MOIR’s variable speed rotary compressors feature high capacity, efficiency, and reliability. It offers minimum electronic parts but maximum power.

2. Brushless DC Motor Driven

MOIR’s miniature variable speed compressor is driven by a brushless DC motor. This motor of the kind has fast response, large starting torque, and excellent performance enabling rated torque from 0 speed to rated speed. It makes it easy to realize variable speed frequency control of the mini compressor ranging from 1200rmp to 6500rmp. And it can be powered by a battery, vehicle power, grid, solar energy, etc., which enhances the adaptability of the small cooling system.

3. Sine Wave Inverter

The mini compressor is a variable-capacity dc compressor driven by a drive board. It is a new type of innovative compact compressor. It powers cooling capacity ranging from 100W to 800W(2800Bth) by the drive board. The drive board is continuously speed-controllable with the frequency of the sine wave signal, providing ±0.1 precise control of the temperature. Thus, it features low noise, little vibration, and high efficiency.

4. Low Noise & Low Vibration

Adopting an optimized brushless motor, the micro refrigerated rotary compressor runs quietly silent and resists vibration. the miniature dc compressors are tailored for mobile transport and unbeatable when it comes to dealing with changing climatic conditions and vibration under harsh road conditions around the world. Also, their silent performance is ideal for hospitals, clinics, and offices.

The Applications of the mini BLDC rotary compressor

MOIR variable speed refrigeration compressors are developed for connection to 12/24/48V DC power supplies and are compatible with R134a refrigerants which are verified. The mini compressor can be utilized in a wide array of applications, such as air conditioning units, water chillers, and commercial refrigeration systems. Because of their compact size and less-weight design, they can be used in mobile or portable systems using either battery or vehicle power. This also makes them very suitable for small stationary applications, such as cooling electronic components and assemblies. Their abundant advantages fulfilling a growing need for miniature thermal management systems.

• Small water chiller
• Aquarium cooler
• Medical aesthetics
• Personal cooling
• Dog/ pets air cooling
• EV battery pack cooling
• Portable air conditioner
• Laser & Chips & semiconductor
• Electronic pharmaceutical
• Food & beverage cooling
• Hydrotherapy and cryo chill
• Driver racing & motorsports
• RV & marine refrigerators

Conclusion

Nowadays, mini dc rotary compressors are widely used by many small and portable cooling systems and small-footprint counter applications. They satisfy the growing market segment of customers who want to take advantage of small thermal management in compact solutions. MOIR is one professional HVAC company backed up by our factories that have been engaging in the micro refrigeration industry for over 15 years, with a group of savvy and devoted engineers support. This enables MOIR to gain comprehensive knowledge and provide our customers with uncompromising standard products with unparalleled quality and ultimate performance. Now we keep capturing new technology and developing up-to-date micro portable commercial systems to meet the requirement challenge of the growing market.