DC Bus Air Conditioner

As a core technology, the DC Bus Air Conditioner has become crucial for ensuring the reliability and comfort of new energy buses and accelerating the electrification of buses globally.

DC Bus Air Conditioner primarily addresses two core scenarios:

All-weather urban bus operation: The system must operate stably within a wide temperature range of -40℃ to 50℃ and maintain efficient cooling even in summer ambient temperatures of 46℃ or higher.

Ensuring vehicle range and safety: DC Bus Air conditioning is one of the main power-consuming components of a bus. Therefore, efficient inverter technology is crucial for reducing energy consumption and extending range. The system also needs to integrate battery thermal management functions to ensure the battery operates at an appropriate temperature, directly affecting vehicle safety and lifespan.

DC Bus Air Conditioner

The advantages of the DC Bus Air Conditioner are reflected in energy saving, integration, and intelligence:

High efficiency and improved range: DC inverter technology can steplessly adjust output according to actual load, significantly reducing energy consumption compared to fixed-frequency air conditioning. This not only reduces operating costs but also directly reduces battery energy consumption, extending the range per charge.

Deep Integration, Intelligent Management: Modern systems are no longer isolated components, but rather the core of the vehicle’s thermal management network. For example, Envicool’s solution uses algorithms to intelligently manage air conditioning operation based on the vehicle’s battery level.

Stable and Reliable, Easy Maintenance: Utilizing vibration-resistant components to adapt to harsh road conditions, and employing networked monitoring for real-time status monitoring and fault warnings, uptime is improved while reducing maintenance difficulty.

Model E-Clima2200 E-Clima3000 E-Clima4000 E-Clima6000 E-Clima8000 E-Clima2600S
Voltage
(V)
DC12V/24V DC12V/24V DC12V/24V DC12V/24V DC12V/24V DC12V/24V
Cooling Capacity
(W/BTU)
2200W//7500 3000W/10000BTU 4000W/15000BTU 6000W/20472BTU 8000W/27300BTU 2600W/78870BTU
Installation Rooftop Mounted Rooftop Mounted Rooftop Mounted Rooftop Mounted Rooftop Mounted Split Mounted
Evaporator Air Volume
(m³/h)
650 700 650 650 1500 450
Condenser Air Volume
(m³/h)
1050 1400 1050 1700 3600 1400
Refrigerant R134a R134a R134a R134a R134a R134a
Dimension
(mm*mm*mm)
700*580*263 885*710*290 700*580*263 1580*385*180/
920*928*250
1260*1030*180 682*465*192
540*362*165
Weight
(KG)
32 35 18/47 18/47 31

The DC Bus Air Conditioner’s configuration serves a complete ecosystem:

Bus Operators: As direct customers, they are most concerned with the reliability, cooling effect, and total lifecycle energy cost of the air conditioning system, which directly impacts their daily operational efficiency and reputation.

Bus Manufacturers: For OEMs like Yutong and BYD, an efficient and integrated air conditioning system is a key subsystem for creating high-performance, highly competitive new energy bus products.

Policy Makers and the Public: Governments promote green travel by procuring high-standard vehicles, while the public enjoys quiet, zero-emission, and comfortable public transportation services. Efficient air conditioning is a crucial element in increasing public willingness to ride and achieving environmental goals.

In summary, the DC Bus Air Conditioner has evolved from an auxiliary device into a key determinant of electric bus performance.

As core component suppliers like Busclima emphasize, its design must simultaneously meet stringent requirements for comfort, reliability, and efficiency.

With technological advancements, future air conditioning systems will be more deeply integrated with the overall vehicle’s intelligence and connectivity, becoming an indispensable “environmental steward” for smart buses.

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