A kind of truck low-voltage direct a/c systemTechnical field
The invention belongs to air-conditioning technical field, particularly relate to a kind of truck low-voltage direct a/c system.
Background technology
Existing following several lorry air-conditioning system:
1st kind is: truck engine, by belt-driving, freezes to drive compressor rotary compression.Its shortcoming: after parking, ability of can not stopping working using air-condition, and oil consumption is high, noise is large, has exhaust emission to cause aerial contamination.
2nd kind is: truck is added an auxiliary engine and drive compressor operating refrigeration, after parking, sustainer, main engine can stop working, but auxiliary engine still needs to work on to ensure that air-conditioning can use.Its shortcoming: increase by a driving engine and increase oil consumption, and noise is large, has exhaust emission to cause aerial contamination, and needs time-based maintenance driving engine.
3rd kind is: contravariant a/c system, is boosted by inverter by truck storage battery, and then drives domestic air conditioning.Its shortcoming: inversion boosting conversion causes degradation of energy, and use high potential dangerous, domestic air conditioning is not suitable for using at the environment of truck vibrations, high temperature.
4th kind is: on truck, increase a driving engine band electrical generator, be that domestic air conditioning is powered by electrical generator.Its shortcoming has both the 2nd, the shortcoming of the 3rd kind.
5th kind is: hybrid power lorry air-conditioning system: provide energy to drive air-conditioning work by battery pack.Its shortcoming: battery pack and whole system cost high, and on car, electricity consumption and air conditioning electricity are two kinds of voltage classs, each other can not be compatible, and a/c system is that high potential has the danger such as electric shock.
The present use the most generally automotive air-conditioning system of the 1st kind, truck engine by belt-driving, to drive compressor rotary compression refrigerant.Its shortcoming: after parking, ability of can not stopping working using air-condition, and oil consumption is high, noise is large, has exhaust emission to cause aerial contamination.
Summary of the invention
The object of the present invention is to provide a kind of truck low-voltage direct a/c system, be intended to solve current lorry air-conditioning system oil consumption high, noise is large, the problem large to aerial contamination.
The present invention is achieved in that a kind of truck low-voltage direct a/c system comprises driving engine, electrical generator, battery pack, air conditioner direct current brushless compressor and condenser assembly, A/C evaporator assembly; Turn of engine drive electrical generators generates electricity, electrical generator is connected with battery pack, battery pack and air conditioner direct current brushless compressor and condenser assembly and A/C evaporator assembly are connected, for air conditioner direct current brushless compressor and condenser assembly and A/C evaporator assembly are powered.
Further, described a/c system voltage is 12V or 24V low-voltage dc voltage, and can be consistent with former vehicle electric system voltage directly in parallel.
Further, battery pack can also be powered for other equipment on car.
Truck low-voltage direct a/c system of the present invention, truck is in the process of moving by driven by engine electrical generator, by electrical generator, consumer on car and a/c system are powered, and storage battery is charged, truck is powered to air-conditioning by battery pack after parking, and then reach long-time after parking and the using air-condition of safety, oil consumption is low, non-exhaust emission and noise, and the using air-condition that can stop, use low-voltage direct safety voltage, and the transformation that newly dispatch from the factory truck and main flow possess truck in a large number can be matched in.
Accompanying drawing explanation
Fig. 1 is the structural representation of the truck low-voltage direct a/c system that the embodiment of the present invention provides;
In figure: 1, driving engine; 2, electrical generator; 3, battery pack; 4, air conditioner direct current brushless compressor and condenser assembly; 5, A/C evaporator assembly; 6, other equipment on car.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Fig. 1 shows the structure of truck low-voltage direct a/c system of the present invention, as shown in the figure, the present invention is achieved in that a kind of truck low-voltage direct a/c system comprises driving engine 1, electrical generator 2, battery pack 3, air conditioner direct current brushless compressor and condenser assembly 4, A/C evaporator assembly 5; Driving engine 1 rotates drive electrical generators 2 and generates electricity, electrical generator 2 is connected with battery pack 3, battery pack 3 and air conditioner direct current brushless compressor and condenser assembly 4 and A/C evaporator assembly 5 are connected, for air conditioner direct current brushless compressor and condenser assembly 4 and A/C evaporator assembly 5 are powered.
Further, described a/c system uses voltage to be 12V or 24V low-voltage dc voltage, and can be consistent with former vehicle electric system voltage directly in parallel.
Further, battery pack 3 can also be powered for other equipment 6 on car.
Truck air conditioning in the embodiment of the present invention and prior art basically identical, except the present invention adopts the brushless compressor of low-voltage direct to replace except raw hide V belt translation compressor, miscellaneous part: condenser, evaporator, expansion valve, drier receiver, pipeline, condenser fan and control system etc. are with original consistent.Air conditioning for automobiles divides pressure duct and low pressure line.High pressure side comprises compressor outgoing side, pressure duct, condenser, drier receiver and liquid line; Low pressure side comprises evaporator, integrator, return line, compressor input side and compressor oil pond.
Truck air conditioning refrigeration system is made up of compressor, condenser, drier receiver, expansion valve, evaporator and blowing engine etc.Copper pipe (or aluminum pipe) and high-pressure rubber hose is adopted to connect into a closed system between each parts.During refrigeration system work, refrigerant with different states at this closed system internal circulation flow, each circulation is four basic processes again: 1, compression process: compressor sucks the refrigerant gas of the low-temp low-pressure at evaporator outlet place, and the gas it being compressed into High Temperature High Pressure discharges compressor.2, radiation processes: the superheated refrigerant gas of High Temperature High Pressure enters condenser, due to the reduction of pressure and temperature, refrigerant gas is condensed into liquid, and discharges a large amount of heats.3, throttle process: the refrigerant liquid that temperature and pressure is higher becomes large by volume after expansion gear, and pressure and temperature sharply declines, and discharges expansion gear with vaporific (fine drop).4, endothermic process: atomized refrigerant liquid enters evaporator, because now refrigerant boiling point is far below temperature in evaporator, therefore refrigerant liquid flashes to gas.Heat in evaporation process around a large amount of absorption, then the refrigerant vapour of low-temp low-pressure enters compressor again.The carrying out that said process goes round and begins again, reaches the object reducing evaporator ambient air temperature.
Truck low-voltage direct a/c system of the present invention, truck is in the process of moving by driving engine 1 drive electrical generators 2, powered by consumer and a/c system on electrical generator 2 pairs of cars, and battery pack 3 is charged, truck is powered by battery pack 3 pairs of air-conditionings after parking, and then reach long-time after parking and the using air-condition of safety, oil consumption is low, non-exhaust emission and noise, and the using air-condition that can stop, use low-voltage direct safety voltage, and the transformation that newly dispatch from the factory truck and main flow possess truck in a large number can be matched in.
There is logistics company one truck to freight with mailing to second from first, wait for that entrucking and loading time are 4 hours in first, dispatch a car and want 5 hours with being transported to second, wait for that unloading and unloading time are 5 hours to second, 1 P TICKET of going further is freighted, and the need 2 hours of waiting to have freighted, dispatch a car and within 5 hours, arrive first ground.Go round and begin again: the time of turning on the aircondition of must stopping be 4 hours+5 hours+2 hours=11 hours, per hourly presses 4 liters of oil, totally 11 hours X4 liter=44 liter, and 44 liters of X often rise oil 7 yuan=308 yuan, are air-conditioning expense.
Below the contrast of the present invention and prior art:
It is obvious that emphasis embodies fuel-economizing, and compatible with former car voltage 12V or 24V.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that performing creative labour can make still within protection scope of the present invention.