CLING CEZDD CO₂ Air Conditioner
Read More
CLING EZDS Series Electric Bus Air Conditioner
Cling's fourth-generation DC drive EZDD/EZDS electric air conditioner series products adopt all electric variable frequency technology, with core advantages of long service life, high energy efficiency, full environmental friendliness, lightweight design, intelligent features, and high integration. It is a leading intelligent temperature control solution in the field of bus air conditioning, specifically designed for new energy vehicles such as 6-13 meter electric buses and city buses.
-
Intercity Bus
-
School Bus
Home
Products
Product Introduction
EZDD/EZDS series air conditioners are Cling's fourth-generation DC-driven air conditioning products, featuring long service life, high energy efficiency, full environmental friendliness, lightweight design, intelligent features, and high integration. This is currently Cling's most advanced air conditioner product series.
Features
DC variable frequency compressor drive technology
The compressor is driven by a DC electric drive, with an operating voltage range of DC280V to DC750V. It supports 20% to 100% power frequency conversion regulation, accurately matches the load demand, and improves energy efficiency.
24V DC brushless fan
Driven by DC 24V converted from the vehicle's DC-DC module, the PWM stepless speed regulation module achieves 30% to 100% power and air volume adjustment, balancing energy saving, quietness, and extended service life.
LFT molded material + aluminum alloy housing
The air conditioner housing uses LFT molded material combined with an aluminum alloy housing, reducing weight by more than 30%, balancing strength and lightweight.
Safe and environmentally friendly materials
All internal non-metallic materials use "odorless, environmentally friendly, and flame retardant" materials to ensure health and safety from the source.
Refrigerant leakage prevention technology
The refrigerant is pre-filled before installation, combined with fully welded interfaces to reduce the risk of leakage and improve system reliability.
The whole series covers 8-18 meter battery electric buses
The EZDD/EZDS series products support the entire series of overhead models and are suitable for 6-13 meter battery electric buses to meet diverse demands.
Lightweight
The compressor (44 kg) and inverter (15 kg) of the AC/DC platform have been reduced to 7.5 kg for DC compressor, and the parts and components have achieved automotive-grade "dustproof, waterproof, vibration-proof" performance, with a rating up to IP67; The original fan weight of 14 kg and inverter weight of 12 kg have been reduced to 2.5 kg, and the fan has been changed from a high-voltage AC fan to a low-voltage DC fan, which is safer and easier to maintain; The application of new materials, LFT-D housing and cover, reduces weight by 30% compared to traditional fiber reinforced plastic products; The application of the four-way valve and electronic expansion valve results in fewer pipelines and lighter weight inside the air conditioner.
Energy saving and comfort
The electric air conditioner from Cling is based on fuzzy control. According to the operating conditions of the air conditioner, it unloads and adjusts the rotation speed of major energy-consuming equipment in the air conditioning system, such as the compressor (20%~100%), evaporator fan (30%~100%), and condenser fan (30%~100%), to achieve energy saving and reduced power consumption. Self-developed control program, the industry's exclusive use of electronic expansion valve, accurately adjusts refrigerant flow, enabling the system to operate at the optimal refrigerant circulation amount. The self-developed PI variable frequency intelligent control model has become the core competitiveness of Cling. Vehicle tests have verified that Cling's full DC products save more than 15% energy.
Reliability
The selected parts and components have reached automotive grade, and the power module, compressor, etc. have reached IP67; Various protection functions are complete: overvoltage alarm and cut-off function, undervoltage alarm and cut-off function, overcurrent protection function, compressor exhaust overheating protection, air conditioning system high-pressure protection, air conditioning system low-pressure protection, air conditioning system temperature control, etc.; Passed rigorous bench tests: rated capacity tests (cooling/heating), high-temperature cooling/heating, defrosting, free temperature rise, free temperature drop, oil level verification for variable frequency compressor, high-temperature cooling start test, long-duration operation test, vibration and other tests; Vehicle test verification: A total of 60,000 kilometers on general highways, high-speed loops, and comprehensive roads, with multiple tests conducted during the period for items such as cooling and heating. The compressor and power module are waterproof, dustproof, and shockproof, fully meeting automotive-grade standards; the fan adopts a safe voltage grade, making the system safer and providing a high protection grade. The weight is directly reduced by more than 40%, lowering the center of gravity of the vehicle and improving overall safety; it also indirectly reduces more of the vehicle's weight, effectively increasing the vehicle's passenger capacity and driving range.
Environmental protection
Cling A/C is the first in the industry to use full environmentally friendly materials, and adds environmentally friendly materials with bactericidal ingredients to the insulation and filter materials, which effectively inhibits the growth of bacteria inside the air conditioner and prevents secondary pollution. The housing and cover are manufactured using LFT and SMC material molding processes to ensure that the emissions of various harmful substances are lower than the national standard, which is unique in the industry; all parts and components used have undergone strict environmental protection tests.
- Cooling working principle
-
At cooling mode, the liquid refrigerant absorbs heat and vaporizes, becoming LP, LT steam, and goes into compressor, and gets compressed into HT, HP gas, then moves through 4 way valve, then into condenser to lose heat, it becomes mid pressure, LT liquid, then throttled by expansion valve, loses pressure, then goes into evaporator to vaporize. Such loop goes on and on.
- Heating working principle
-
At heating mode, the compressed HP,HT gas refrigerant goes into bus evaporator to release heat, becoming mid pressure LT liquid, then throttled by expansion valve, becoming LT,LP liquid and vaporizes in the condenser to change into gas refrigerant, and goes into compressor again. The loop continues.
Technical Parameters
Customer Cases
Contact Us
Please provide the following details to help our sales representatives better understand your needs in order to get in touch with you as soon as possible.
-
Hotline: +86 18736032501
-
E-mail: marketing@clingac.com
-
WhatsApp: +86 18736032501
-
Wechat: +86 18736032501
-
Company Address: No.8 Changchun Rd., High-Tech Zone Zhengzhou, 450001, P.R.China
Get a quote
Related Products
