BLDC Compressor

BLDC Compressor

  • Compressor Type: BLDC Compressor
  • Energy Saving up to 20%;
  • BLDC Compressor with sensorless motor;
  • Constantly adjusts compressor’s speed to optimum working state;
  • Provides excellent cooling capacity in the highest power densities;
  • Variable speed2,000~6,500rpm operates in battery, vehicle, grid or solar power.

Features of Rigid BLDC Compressor

  • Compressor Motor: Brushless DC
  • Voltage: 12V/24V/48V DC
  • Refrigerant: R134A
  • Net Weight: 1.6 lbs / 0.72kgs
  • Motor Speed: Variable speed motor 2,000~6,500rpm
  • High Cooling performanceup to 550W=1,875Btu;
  • Applications: Heating, Cooling and Refrigeration for Compact Cooling Applications

mini bldc compressor

The advantages of a brushless motor over brushed motors are high power to weight ratio, high speed, and electronic control.

Furthermore, Rigid brushless dc compressor has variable speed ranges 2000~6500 rpm. This feature finds applications in compact and portable cooling applications such portable cooling systems, miniature refrigeration systems, electronics cooling systems, medical cooling, Co2 laser cooling and other mini-chilled water systems.

Rigid BLDC Inverter compressor constantly adjusts a compressor’s speed to maintain desired temperature levels.

It brings the ultimate cooling experience with new energy saving. While conventional compressors cannot operate at a slower speed due to unstable rotation.

Rigid BLDC compressor is able to operate at a lower speed with more stability, saving up to 70% more energy compared to conventional compressor.

Rigid BLDC compressors are well suited for a variety of applications covering the ordinary to the extraordinary.

It is perfect match for compact cooling systems where weight and space is very important.

rigid bldc compressor


By using our own developed bldc compressor, Rigid has developed a variety of standard and custom cooling systems for a variety of applications. We specialize in Compact Liquid Chiller Modules (LCM), Micro DC Aircon and DC Condensing Unit, utilizing our own miniature compressor technology. More applications please click Applications.

Rigid miniature cooling modules aim to chill liquid, portable air conditioning and direct evaporation refrigeration systems. Our advanced mini compressor and liquid chiller modules provides the highest performance solution for your specific needs at the minimum cost.

Rigid’s compact and portable plate liquid chiller provides comfortable body cooling solution for race car driver. Its outstanding cooling performance and excellent reliability and durability keep driver cool even during on the wheel.

To remain an industry leader in small & portable cooling technology development, Rigid has invested huge sums in research and development each year. In 2018, Rigid keeps exploring small cooling technology for personal cooling, it aims to offer body cooling for personnel exposed to extreme temperatures in their work environment.

Besides, our custom designed compact cooling systems offer thermal management solutions for demanding requirements with minimum weight and volume impact. These custom modules provide small cooling solutions for commercial, industrial, and military applications.

  • Portable Cooling Systems
  • Miniature Refrigeration/Freezer Systems
  • Thermally-Controlled Shipping Containers
  • Electronics Cooling Systems
  • Medical Imaging Equipment
  • Beverage Cooling
  • Mini-Chilled Water Systems

RIGID Miniature Cooling Systems are very well-received by the market. Numerous thermal management appliances can benefit from the size and weight reduction of bldc mini compressor and compact liquid chiller modules.

RIGID BLDC Compressor Advantages


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BLDC Compressor Manufacturer

Rigid’s BLDC motor-driven compressors is a type of sensorless brushless DC Mini Compressor. It provides the powerful cooling capacity in the highest power densities.

Rigid brushless dc compressor is ideally suited to meet the stringent demands of mobile and compact cooling. Through our line of small rotary bldc compressors, Rigid provides the key enabling technology to original equipment manufacturers (OEMs) for these new bldc inverter compressor. Plus, Rigid also offers a solution for DC cooling systems running on solar, battery, or other off-grid power sources. The direct current DC Rigid hermetic compressor eliminates the need for an inverter and the inductive surge at start up associated with a traditional A/C compressor.

For the purpose of increasing the efficiency, that is the reason why RIGID Technology mini rotary compressors choose brushless DC motor (BLDC). Nowadays brushless motor is used more and more in the compact cooling applications. Considering there’s nowhere to install sensor in the compressor, the motor has to be controlled in a sensorless way. This application note provides a reliable sensorless Field Oriented Control (FOC) method targeting the BLDC control inside a refrigerating compressor.

Brushless DC electric motor (BLDC motors, BL motors) also known as electronically commutated motors. Rigid BLDC inverter compressor is powered by DC electricity via an inverter or switching power supply,  which produces an AC electric current to drive each phase of the motor via a closed loop controller. And Rigid patented sine wave controller provides pulses of current to the motor windings that control the speed and torque of the motor.