DC Compressor

DC Compressor
The Best Cooling Capacity for Smallest Footprints on the Market
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Direct Current Compressors

RIGID is the miniature compressor innovation leader in China. We keep looking for novel solutions in compact and portable cooling applications. At the same time, RIGID keeps pursuing innovative solutions to effectively reduce carbon dioxide emissions and promoted the use of low-GWP refrigerants. Our aims are eco-friendly and meet the high requirements of the eco-design directive UE2015-1095.

RIGID Inverter technology (DC) is the latest evolution of technology concerning the electro motors of the compressors. The dc compressor motor is controlled by an inverter, which continuously regulates the temperature.

In the field of mobile refrigeration, RIGID has excelled with its DC compressors for micro refrigeration, portable air conditioner, mobile boxes, cars, vans, boats, trucks, electric vehicles, etc. In the food, laser, medical, military, green energy, and telecommunication industries. RIGID DC compressor series offers excellent performance.

Reduce running costs in cooling and save up to 450W per hour!
Advantages of DC Compressors

Low Starting Current

High starting torque, high slip, and low amperes draw.

Design for Mobile Applications

Compact size, run on 24V/48V DC power supply.

Inverter BLDC Motor

Variable Speeds ranging from 1,800 to 5,500rpm.

Excellent COP ≥ 3.46 (W/W)

Excellent cooling capacity, low energy consumption.
Miniature 24V / 48V DC Compressor
Tailored for Small and Light Commercial LBP/MBP/HBP Applications

RIGID tiny DC compressors have many advantages: small size, lightweight, high efficiency, low vibration, and high reliability. The 48V DC compressor - QX8803VDL can be said to be the king of micro compressors, with the world's largest cooling capacity of 1,067 W.

In addition, the micro dc compressor QX8803VDL uses DC frequency conversion technology combined with an M-cylinder motor, which is better at low noise and high-reliability technology and has an excellent performance in high energy efficiency, low noise, and long life. Both in the commercial refrigeration and home refrigeration field, we have won a high reputation for their reliable quality and advanced technology.

RIGID BLDC direct current compressors feature an optimal pump that operates quietly, while also providing excellent performance. In addition to heat pumps, air conditioners, cabinet & telecommunications, and commercial cooling applications, the 48V DC compressor QX8803VDL is also well suited for various compact Air Conditioning and Refrigeration applications.

Compared to traditional compressors, RIGID variable-speed DC compressors offer highly efficient and energy-saving features. Unlike a fixed-speed compressor that constantly runs at 100%, the rotary inverter DC compressors deliver only as much air as it needs for cooling, saving significant amounts of electricity.

RIGID is continuously developing direct current DC compressors, not only to discover new technological advances but also to improve and reach our most successful results when operating them.
24V DC Compressor, QX3002VDL
Nominal Capacity: ≥530W (1,807Btu)
24V DC
1.4 kgs /3.1 lbs
Displacement: 3.0 ml/rev
Refrigerant: R134A / R513A
Working Current: 8.6A
Rated Capacity: 530 W / 1,807 Btu
Compressor Rated Input: 208 W / 709 Btu
COP (Coefficient Of Performance): 2.55 W/W
Size: 103.5 x 65 mm (High x Diameter)
Variable speed drive board: (1,800~5,500 rpm)
Drive board included

48V DC Compressor, QX3003VDL
Nominal Capacity: ≥544W (1,855Btu)
48V DC
1.4 kgs /3.1 lbs
Displacement: 3.0 ml/rev
Refrigerant: R134A / R513A
Working Current: 4.5A (Max 6A)
Rated Capacity: 544 W / 1,855 Btu
Compressor Rated Input: 217 W / 740 Btu
COP (Coefficient Of Performance): 2.51 W/W
Size: 103.5 x 65 mm (High x Diameter)
Variable speed drive board: (1,800~5,500 rpm)
Drive board included

48V DC Compressor, QX8803VDL
Nominal Capacity: ≥1,067W (3,638Btu)
48V DC
4.7 kgs / 10.3 lbs
Working Current: 6.06A
Displacement: 8.8 ml/rev
Refrigerant: R134A / R513A
Rated Capacity: 1,067 W / 3,638 Btu
Compressor Rated Input: 309 W / 1,054 Btu
COP (Coefficient Of Performance): 3.46 W/W
Size: 185 x 94.4 mm (High x Diameter)
Variable speed drive board: (1,800~4,000 rpm)
Drive board included
DC Compressor Features and Benefits

If you rely on battery power for up to 16 hours a day, be sure that your DC compressor will ever cool the battery and ensure it can last a long time. Reduce maintenance and replacement costs by securing your signal. Battery drain is a big issue,
RIGID Battery-driven DC compressors will allow you to:
Energy-efficient direct current DC compressor with a high COP.
Ensure maximum performance by simplifying the overall system design.
Create a cooling system that can run on battery, solar cell, and wind turbine without converting the current to alternating current.
*Compared to other solutions that rely on AC and 230V AC conversion compressors.

Features and Benefits:
Outstanding Performance COP＞2.95.
Ultra-quiet working noise level (32dBA).
Miniature DC compressors apply for mobile cooling applications.
Highly reliable and efficient solutions safeguard cabinet, food, medical, and telecommunication.
Variable speed driver control unit with built-in speed control, ON&OFF switch, thermostat signal, thermal protection, constant-current control, and safety against overload.
DC Compressor Drive Board

RIGID DC Compressors combine with variable speed drive board. It is easy to integrate the drive board (PCB) into your application if you need sophisticated functions or want to control them with your software.

The PCB drive board is a variable speed drive. This allows the cooling capacity of the system to be adjusted by increasing or decreasing the compressor speed. The compressor drive board utilizes a user-supplied 0-5 VDC analog signal to set the compressor speed. The firmware has a minimum speed of 2,000 RPM (0.7 VDC or lower) and a maximum speed of 6,000 RPM (4.5 VDC or higher).

The voltage to RPM relationship is linear between 0.7 and 4.5 V so the following equation can be used: S = 1132×V+1408.

* Where S is compressor speed (RPM) and V is the control voltage (VDC).
DC Compressor Applications -
Mobile Cooling & Compact Refrigeration
Online Store
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Twin Cylinder Compressor QX3802VDL-T (24V, R290)
$380.00
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Mini Compressor QX1901VDL (12V)
$210.00
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MINI COMPRESSORS FAQ
1. WHAT’S MINI COMPRESSOR?
2. HOW TO SELECT COMPRESSOR?
3. RIGID MINI COMPRESSOR FEATURES
4. RIGID MINI COMPRESSOR APPLICATION
5. RIGID MINI COMPRESSOR SERIES
6. RIGID MINI COMPRESSOR PARAMETERS
7. WHY CHOOSE RIGID MINI COMPRESSOR?
8. RIGID MINI COMPRESSOR APPLICATION
9. RIGID MINI COMPRESSOR STORAGE AND HANDLING
10. COMPRESSOR UNPACKING
11. PREPARATION OF REFRIGERATION SYSTEM COMPONENTS
12. REFRIGERANT & OIL USE GUIDE
13. R134A REFRIGERANT
14. R134A REFRIGERANT CHARGE
15. OIL MANAGEMENT
16. OIL CHARGING