Air conditioner used for cars and ships in ultralow temperature environment and controlling method thereof

Abstract

The invention relates to an air conditioner used for cars and ships in ultralow temperature environment and a controlling method thereof. The air conditioner is characterized in that an indoor machine is successively connected with a refrigeration compressor of an outdoor machine, an air cooling condenser, a reservoir, a dry filter and an expansion valve, wherein the air cooling condenser is composed of two or more condensers through assembling in a parallel manner, electromagnetic valves are arranged on any inlet or all the inlets of the condenser, and one-way valves are arranged on any outlet or all the outlets of the condenser; and the cooling fan is controlled by and connected with a frequency conversion motor, and the electromagnetic valves and the frequency conversion motor are all connected with an electric control box. By the combined action between the electromagnetic valves and the one-way valves, the number of condensers which perform actions in cooling in the air cooling condenser can be adjusted, the frequency conversion motor is cooperated to adjust the cooling fan, the corresponding air cooling of the adjustable air cooling area is met, the cooling requirement of different external environment and internal environment transformations of the cars and ships are adapted, the air conditioner can be used for refrigerating under global environment, and the application range is wide.

Description

technical field [0001] The invention relates to an air conditioner for vehicles and ships in an ultra-low temperature environment and a control method thereof, in particular to an air conditioner suitable for an ultra-low temperature environment for vehicles and ships. Background technique [0002] With the rapid development of the global economy, the demand for means of transportation is increasing, and its technical requirements are also getting higher and higher. Many high-tech electronic products are required. These devices not only generate high heat, but also require a stable, suitable working environment, which requires air conditioners to dehumidify and cool these cabins to meet the requirements of the working environment. The means of transport must also adapt to the environmental requirements of global work, especially in environments with relatively low ambient temperature (ambient temperature -25°C), the special airtight compartment of the means of transport cann...

AI Technical Summary

Problems solved by technology

The means of transport must also adapt to the environmental requirements of global work, especially in environments with relatively low ambient temperature (ambient temperature -25°C), the special airtight compartment of the means of transport cannot be directly connected to the outside atmosphere due to work needs, so it is required When the ambient temperature is generally -25°C, the air conditioner is still required to operate under refrigeration conditions to remove the heat emitted by the heating equipment in the cabin. Generally, the ambient temperature of industrial air conditioners under refrigeration conditions is generally above 0°C, which is not suitable for Airtight cabin refrigeration in global working environment, narrow application range

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