CN102336128B - Air conditioning system for special passenger car - Google Patents
Air conditioning system for special passenger car Download PDFInfo
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- CN102336128B CN102336128B CN2011102765201A CN201110276520A CN102336128B CN 102336128 B CN102336128 B CN 102336128B CN 2011102765201 A CN2011102765201 A CN 2011102765201A CN 201110276520 A CN201110276520 A CN 201110276520A CN 102336128 B CN102336128 B CN 102336128B
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Abstract
The invention relates to an air conditioning system for a special passenger car, which comprises a power source driving system and a refrigeration system driven by the power source driving system to work, wherein the power source driving system comprises a mechanical driving unit and an electric driving unit which are controlled by a controller assembly to work, and an input end of the controller assembly is connected with at least one work-state sensor; the mechanical driving unit comprises an open-type compressor assembly driven by an engine and a direct current generator assembly, and the electric driving unit is an independent generator assembly or a mains supply input terminal. In the invention, a fully closed compressor system is connected to the independent generator assembly outside the passenger car or mains supply AC (alternating current) 220V, thereby meeting various requirements of special passenger cars: 1. the engine supplies a power source; 2. the independent generator set supplies the power source; 3. the mains supply is connected to supply the power source. The air conditioning system works in three power source modes to meet the requirements of the special passenger car for refrigerating capacity and air quantity.
Description
Technical field
The present invention relates to a kind of a/c system that relates to the passenger vehicle special use.
Background technology
Along with the development of special passenger car, the simple opened compressor a/c system of single tradition can't adapt to the demand of special vehicle.Because special passenger car need to be used under round-the-clock many environment, so vehicle mounted electrical apparatus equipment is more, cause the normal operation difficulty of assurance equipment very large.In addition, partial function requires this car that quiet comfortable environment can be provided, in the wild, urban district can be used: should meet the specific demands such as confidentiality meeting, during Parking, driving engine is not worked, keep again car energy temperature environment to control and other facility operations, comparatively harsh to vibrations and noise requirement while being Parking, now only avoid the driving engine operation can substantially meet above requirement.
And current hvac system is all to utilize engine drive, there is no other power drive mode, can not meet the demand of special passenger car.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can, according to different needs, utilize drive pattern not of the same race to drive the air conditioning system for special passenger car of a/c system work.
For achieving the above object, the present invention is by the following technical solutions:
The refrigeration system that the present invention includes the propulsion source drive system and work under the driving of propulsion source drive system, described propulsion source drive system comprises mechanical driving unit and driven by power unit, the control of the controlled device assembly of described mechanical driving unit and driven by power unit and working, the input end of control assembly connects at least one mode of operation sensor; Wherein, mechanical driving unit comprises by engine-driven opened compressor assembly and dynamo generator assembly; Described driven by power unit is independent generator assembly or mains supply input terminal.
In described driven by power unit, independent generator assembly or mains supply input terminal drive the totally enclosed electric compressor assembly by the electrical equipment control box assembly.
Described electrical equipment control box assembly comprises the power transfer module that is connected with independent generator assembly or mains supply input terminal and coupled drive source commutation circuit.
Described opened compressor assembly, the combination of dynamo generator assembly are arranged near driving engine; Totally enclosed electric compressor assembly and electrical equipment control box assembly are arranged in body position, Yi Cede cabin, passenger vehicle skirt section; Control assembly is placed on the instrument desk in the driver driving cabin.
Described totally enclosed electric compressor assembly is invariable frequency compressor, and described independent generator assembly or mains supply are three-phase AC380V power supply or two-phase AC220V power supply.
Described totally enclosed electric compressor assembly is frequency-changeable compressor, and it is built-in with frequency converter or soft initiator; Described independent generator assembly or mains supply are variable frequency alternating current power source.
Described dynamo generator assembly be the DC27V direct current without the battery generator assembly, or the DC27V carried for bus engine has battery generator.
Be positioned at the magnetic clutch belt pulley on the opened compressor assembly, drive the DC27V direct current and work without the battery generator assembly.
Described refrigeration system comprises evaporator assembly and condenser assembly, and after the docking of evaporator assembly and condenser assembly mounting arrangements on the large top of passenger car.
In described condenser assembly, condensation core body " eight " font is arranged; In described evaporator assembly, two evaporation core bodies are arranged in juxtaposition; Above described condensation core body, arrange condensation fan, arrange respectively evaporation fan in the both sides of two evaporation core bodies.
On the return air inlet of described evaporator assembly, electric-controlled box is set, described electric-controlled box comprises at least one air-conditioning state adjustment relay major loop.
Adopt the present invention of technique scheme, adopt totally-enclosed compressor system access car to send out individual motor group or civil power AC220V outward, thereby met the multiple demand of special passenger car: 1, driving engine provides propulsion source, 2, the Independent Power Generation unit provides propulsion source, 3, the civil power access provides propulsion source, under three kinds of propulsion source patterns, work, met the demand of special vehicle to refrigerating capacity, air quantity.
Compressor layout aspect, be arranged in traditional opened compressor assembly to start pusher side, driving engine to carry without the battery generator assembly, to provide power supply for a/c system for the DC27V direct current; The totally enclosed electric compressor assembly is placed in the baggage container of passenger vehicle bottom, the electrical equipment control box assembly is arranged near the totally enclosed electric compressor assembly.At the design aspect of evaporative condenser assembly, evaporator adopts man-to-man tubular sealing means to be connected with condenser.Condensation core body and evaporation core body all adopt single core body Dual System Design, and namely single core body has two independent loops, two loop mutually noninterferes, and compact conformation, layout is simple.
The electrical equipment control box assembly is by power rectifier module, frequency converter or soft initiator and contactless switch etc., and entire arrangement, on a special carte, and then is formed by connecting with the electrical equipment control tank shell.For the totally-enclosed compressor system, install electromagnetic valve additional, the damage that when its purpose prevented compressor start, hydraulic compression caused compressor on the supercooled liquid pipeline before expansion valve.Control assembly comprises guidance panel and electric-controlled box, and guidance panel is placed on the passenger vehicle instrument desk, and electric-controlled box is placed on the return air inlet of evaporator assembly, realizes normal operation, judgement and protection to the air conditioning appliance parts.
The present invention has realized the Integral design of three kinds of electrical source of power, and dual system and variable frequency control have effectively realized the capacity control of relative broad range, with passenger vehicle energy requirement perfect matching, comfortable energy-conservation, can meet the needs of different automobile types; Control system has realized detection and the processing of various faults, and system reliability is high.
The accompanying drawing explanation
Fig. 1 is the functional block diagram of a/c system of the present invention.
Fig. 2 is the docking arrangement plan that assembly and condensation assembly are evaporated in the present invention.
Fig. 3 is the refrigeration system schematic diagram of air-conditioning of the present invention.
Fig. 4 is electrical schematic diagram of the present invention.
The specific embodiment
As shown in Figure 1, the refrigeration system that the present invention includes the propulsion source drive system and work under the driving of propulsion source drive system, in general refrigeration system consists of condenser assembly 4 and evaporator assembly 3.In the present invention, the propulsion source drive system comprises mechanical driving unit and driven by power unit, and mechanical driving unit and driven by power unit all controlled device assembly 7 control and work, the input end of control assembly 7 connects the mode of operation sensor, and above-mentioned mode of operation sensor comprises state sensor, power supply status sensor of temperature sensor, humidity sensor, binistor etc.Wherein, above-mentioned mechanical driving unit comprises by engine-driven opened compressor assembly 1 and dynamo generator assembly 5; Above-mentioned driven by power unit is independent generator assembly 6 or mains supply input terminal 30, and the two all drives totally enclosed electric compressor assembly 2 by electrical equipment control box assembly 8.That is: when the working state signal demonstration gathered, when driving engine is not worked, adopt independent generator assembly 6 or mains supply to drive refrigeration system work.It should be noted that, engine drive, independent generator assembly 6 drive and mains supply driving three is separate, and only have a kind of drive pattern work at synchronization.
It should be noted that, in above-mentioned description, totally enclosed electric compressor assembly 2 can be invariable frequency compressor, also can be frequency-changeable compressor.When totally enclosed electric compressor assembly 2 was invariable frequency compressor, independent generator assembly 6 or mains supply were three-phase AC380V power supply or two-phase AC220V power supply.When totally enclosed electric compressor assembly 2 is frequency-changeable compressor, it is built-in with frequency converter or soft initiator, and independent generator assembly 6 or mains supply are variable frequency alternating current power source.In addition, above-mentioned dynamo generator assembly 5 be the DC27V direct current without the battery generator assembly, or the DC27V carried for bus engine has battery generator.
Aspect layout, opened compressor assembly 1,5 combinations of dynamo generator assembly are arranged near driving engine, are positioned at the magnetic clutch belt pulley on opened compressor assembly 1, drive the DC27V direct current and work without the battery generator assembly.Totally enclosed electric compressor assembly 2 and electrical equipment control box assembly 8 are arranged in body position, Yi Cede cabin, passenger vehicle skirt section; Control assembly 7 is placed on the instrument desk in the driver driving cabin.
As shown in Figure 2, refrigeration system comprises evaporator assembly 3 and condenser assembly 4, and after 4 docking of evaporator assembly 3 and condenser assembly mounting arrangements on the large top of passenger vehicle.Wherein, in condenser assembly 4, above condensation core body 10, arrange condensation fan 9, it and condensation housing form condenser assembly 4 jointly, and condensation core body 10 " eight " fonts are arranged.In evaporator assembly 3, two evaporation core bodies 13 are arranged in juxtaposition; Above condensation core body 10, arrange condensation fan 9, evaporation fan 17 is arranged respectively in both sides at two evaporation core bodies 13, and the parts such as electromagnetic valve 14, rear heating power expansion valve 16, front heating power expansion valve 11, electric-controlled box 18, shutoff valve 19 and liquid-sighting glass 12 are placed in the top of return air inlet 100; Drying liquid storage device 15 and drying liquid storage device 20 are arranged in front and back at evaporation core body 13; Above these parts connect to form evaporator assembly 3 by pipeline, and after after evaporator assembly 3 and condenser assembly 4 docking, sealing with the glass-felt plastic lid, form the overhead unit of this air-conditioning.
Fig. 3 is the schematic diagram of refrigerating of this a/c system.During refrigerating operaton, liquid refrigerant in evaporator has absorbed room air to be passed to its heat and evaporates, and forms the steam of low-pressure low-temperature, then after be unlocked formula compressor assembly 1 or totally enclosed electric compressor 2 suck and compress, refrigerant becomes the gas of High Temperature High Pressure, enters condensation core body 10.Heat at condensation core body 10 interior gaseous refrigerants is taken away by the outside air that flows through it, the gaseous refrigerant condensation becomes highly pressurised liquid by drying liquid storage device 15,20, shutoff valve 19 or electromagnetic valve 14, liquid-sighting glass 12 flow to front heating power expansion valve 11 or rear heating power expansion valve 16, through the heating power expansion valve throttling, become low-temp low-pressure two phase refrigerants, enter in evaporator and evaporate again, periodical duty, reach the purpose that reduces the environment inside car temperature so again and again.In addition, for convenience of the control of implementing, at return air inlet 100 and the air outlet of evaporation core body 10, return air temperature sensor 24 and leaving air temp sensor 25 are set respectively; Exhaust temperature protector 23 is set on totally enclosed electric compressor 2; Mouth at opened compressor assembly 1 arranges high-voltage switch gear 21, at the input end of opened compressor assembly 1 and the input end of evaporation core body 10, low tension switch 22 is set all.
The principle of work of a/c system of the present invention is: as shown in Figure 1, a/c system has three kinds of propulsions source.That is: 1, engine drive opened compressor assembly 1+DC27v direct current is without battery generator assembly 5 power supplys; 2, AC220V 50Hz Independent Power Generation unit assembly 6 provides propulsion source, and 3,220V 50hz mains supply.In the situation that these three kinds of propulsions source provide electric power or power, the mode of operation of air-conditioning is as follows respectively: when a, bus engine work, vehicle-mounted DC27V direct current provides power supply without battery generator assembly 5 for this a/c system evaporation fan 17 and condensation fan 9 and control assembly 7.Passenger vehicle dependent driving engine provides power for air-conditioning opened compressor assembly 1, drives opened compressor a/c system such as figure periodical duty.When b, Parking, when AC220v 50Hz Independent Power Generation unit assembly 6 provides power supply or the access of civil power AC220V 50hz power supply, AC220V 50hz power supply is rectified into respectively DC27V direct supply and the required alternating-current power supply of totally enclosed electric compressor assembly 2 through electrical equipment control box assembly 8, and the DC27V direct supply after wherein transforming is air-conditioning evaporation fan 17, condensation fan 9, control assembly 7 working powers.It should be noted that, in this this working process, three kinds of propulsions source only allow a kind of appearance, and unit is merely able to work in a kind of propulsion source situation of employing.Air-conditioner controller assembly 7 is as the maincenter of controlling, and all parameter signals of operation of air conditioner all enter air-conditioner controller assembly 7, and all control signals are also all by its output.Air-conditioner controller assembly 7 is processed according to input-signal judging such as high switch 21, low tension switch 22, exhaust temperature protector 23, return air temperature sensor 24, leaving air temp sensors 25; to element output services signals such as air-conditioning opened compressor assembly 1, totally enclosed electric compressor 2, evaporation fan 17, condensation fan 9, electromagnetic valves 14, a/c system can be realized the purpose of safe operation by air-conditioner controller like this.
As shown in Figure 4, electric control system of the present invention is described below.Electric-controlled box 18 is set on the return air inlet of evaporator assembly 3, electric-controlled box 18 comprises at least one air-conditioning state adjustment relay major loop and insurance, accepts the instruction of self-controller and drives the start and stop of direct current condensation fan, mechanical compressor and start and stop and the speed governing of evaporation fan as isolation and driver element.Wherein, air-conditioning state adjustment relay major loop comprises evaporation fan high speed operation circuit, evaporation fan middling speed pull up circuit and evaporation fan slow running circuit.Specifically, thus the magnetic clutch of relay K 1 driving device compressor is opened mechanical compressor.Relay K 3, K4, K5 and K6 drive respectively condensation fan.Relay K 11, K12, K13 and K14 drive respectively the fast mode of evaporation fan.Relay K 15, K16 respectively drive the middle fast mode of two evaporation fans.Relay K 17, K18 respectively drive the low-speed mode of two evaporation fans.Relay K 19 drives one or two Fans, can be used as in car duct and assists auxiliary return air in air-supply or car to use.Each relay major loop all has corresponding insurance to protect load.RT1, RT2 are two thermal resistance type temperature sensors, and RT1 is used for detecting the expansion core temperature, and RT2 is used for ambient temperature in inspection vehicle.Electric compressor circuit electromagnetic valve, for turn-offing when needed air conditioner coolant, prevent that refrigerant from entering compressor.Electromagnetic valve all can play a protective role to electric compressor and electric supply installation.
In Fig. 4, electrical equipment control box assembly 8 comprises the power transfer module that is connected with independent generator assembly 6 or mains supply input terminal 30 and coupled drive source commutation circuit.Wherein, the drive source commutation circuit comprises driving engine commutation circuit, independent generator commutation circuit and mains supply commutation circuit.Electric cabinet accepts the instruction of self-controller to complete the control to electric compressor.Each arrangements of elements is on insulcrete in electric cabinet, and then fixes with the electric cabinet housing, realizes that the electrical isolation of electricity piece guarantees safety.The AC/DC power transfer module is used 27V Switching Power Supply, output voltage stabilization, safe.It is for when electric compressor is worked, for the devices such as air-conditioning DC loop blower fan provide power supply.Circuit breaker Q F1 is the ac circuit main supply switch, to ac circuit, provides safety guard-safeguard simultaneously.Circuit breaker Q F2 is for the protection to electric compressor.AC contactor KM3 is for the on off control of electric compressor.Soft initiator is for soft start and soft-off function be provided when the electric compressor opening and closing, in the protection compressor, reduce the electric compressor startup and while closing to the impact of power supply.DC contactor KM1 and KM2 are for the switching of 27V DC loop. and when automotive engine was worked, KM2 connected, KM1 disconnects, and DC loop is powered by dynamo generator G0.When the alternating current 220V power supply was arranged, the 27V Switching Power Supply was started working, and KM1 connects, KM2 disconnects, and DC loop is powered by the 27V Switching Power Supply.Relay K 51 is for the signal isolation of soft initiator control loop.Relay K 54 is for the switching of control loop power supply.When mechanical compressor was worked, controller was by main car 27V Power supply; When electric compressor was worked, controller was powered by the 27V Switching Power Supply.
Working-flow: after system boot, whether controller detects 27V DC supply module and powers normally, while without 27V, exporting, system is used mechanical compressor, and controller is controlled mechanical compressor and the switch of condensation fan, switch and the speed governing of evaporation fan according to vehicle interior temperature.Detecting simultaneously high-voltage switch gear H1, the low tension switch L1 state in mechanical compressor loop protects and reports to the police the mechanical compressor loop.
When controller detects 27V DC supply module supply regular power, ac power supply has been described, has now used electric compressor.While needing start, controller is first opened condensation fan and is dispelled the heat in advance, cut-in voltage contracting machine operation after suitable time-delay, electric compressor is under soft initiator drives, slowly start, electric compressor is opened the evaporation fan air-supply after starting normally, and opens solenoid valve, system enters normal operation, and controller is controlled electric compressor and the switch of condensation fan, the speed governing of evaporation fan according to vehicle interior temperature.Detect simultaneously high-voltage switch gear H2, low tension switch L2 and the temperature switch T2 state of electric compressor system.Protect accordingly and report to the police.At vehicle interior temperature, drop to temperature required rear system closing compressor and condensation fan, evaporation fan keeps operation to continue air-supply.When temperature rises to need unlatching compressor again, first open the condensation fan radiating, after suitable time-delay, open the evaporation fan normal operation.When controller was received power-off operation, system started close compressor, and after time delay, shut electromagnetic valve cut-out refrigerant stops it to enter compressor, and progressively closes evaporation fan.Continue time delay, close condensation fan after having blown waste heat.
Control assembly of the present invention, as control axis, provides man machine interface simultaneously.By control assembly, can set the required various parameters of operation of air conditioner.Control assembly is controlled a/c system according to parameters such as the temperature set, wind speed and is automatically moved.Detect in real time simultaneously the operating various parameters of a/c system.According to evaporation core body temperature and vehicle interior temperature, judge the running state of system, operating condition according to relevant pre-conditioned automatic adjustment compressor, condensation fan and evaporation fan, improve system reliability, make the set steady continuous running, thereby improve overall comfort.
Claims (6)
1. air conditioning system for special passenger car, it comprises propulsion source drive system and the refrigeration system of working under the driving of propulsion source drive system, it is characterized in that: described propulsion source drive system comprises mechanical driving unit and driven by power unit, the control of the controlled device assembly in described mechanical driving unit and driven by power unit (7) and working, the input end of control assembly (7) connects at least one mode of operation sensor; Wherein, mechanical driving unit comprises by engine-driven opened compressor assembly (1) and dynamo generator assembly (5); Described driven by power unit is independent generator assembly (6) or mains supply input terminal (30), and independent generator assembly (6) or mains supply input terminal (30) drive totally enclosed electric compressor assembly (2) by electrical equipment control box assembly (8); Described electrical equipment control box assembly (8) comprises the power transfer module that is connected with independent generator assembly (6) or mains supply input terminal (30) and coupled drive source commutation circuit, wherein, the drive source commutation circuit comprises driving engine commutation circuit, independent generator commutation circuit and mains supply commutation circuit;
Above-mentioned opened compressor assembly (1), dynamo generator assembly (5) combination are arranged near driving engine; Totally enclosed electric compressor assembly (2) and electrical equipment control box assembly (8) are arranged in body position, Yi Cede cabin, passenger vehicle skirt section; Control assembly (7) is placed on the instrument desk in the driver driving cabin;
Described refrigeration system comprises evaporator assembly (3) and condenser assembly (4), and after the docking of evaporator assembly (3) and condenser assembly (4) mounting arrangements on the large top of passenger car; In described condenser assembly (4), condensation core body (10) " eight " font is arranged; In described evaporator assembly (3), two evaporation core bodies (13) are arranged in juxtaposition; Condensation fan (9) is arranged in top at described condensation core body (10), arranges respectively evaporation fan (17) in the both sides of two evaporation core bodies (13).
2. air conditioning system for special passenger car according to claim 1, it is characterized in that: described totally enclosed electric compressor assembly (2) is invariable frequency compressor, and described independent generator assembly (6) or mains supply are three-phase AC380V power supply or two-phase AC220V power supply.
3. air conditioning system for special passenger car according to claim 1, it is characterized in that: described totally enclosed electric compressor assembly (2) is frequency-changeable compressor, and it is built-in with frequency converter or soft initiator; Described independent generator assembly (6) or mains supply are variable frequency alternating current power source.
4. air conditioning system for special passenger car according to claim 1 is characterized in that: described dynamo generator assembly (5) is for the DC27V direct current without the battery generator assembly, or the DC27V carried for bus engine has battery generator.
5. air conditioning system for special passenger car according to claim 4, is characterized in that: be positioned at the magnetic clutch belt pulley on opened compressor assembly (1), drive the DC27V direct current and work without the battery generator assembly.
6. air conditioning system for special passenger car according to claim 1, it is characterized in that: on the return air inlet (100) of described evaporator assembly (3), electric-controlled box (18) is set, described electric-controlled box (18) comprises at least one air-conditioning state adjustment relay major loop.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102765201A CN102336128B (en) | 2011-09-19 | 2011-09-19 | Air conditioning system for special passenger car |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102765201A CN102336128B (en) | 2011-09-19 | 2011-09-19 | Air conditioning system for special passenger car |
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| CN102336128A CN102336128A (en) | 2012-02-01 |
| CN102336128B true CN102336128B (en) | 2013-11-27 |
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| CN2011102765201A Active CN102336128B (en) | 2011-09-19 | 2011-09-19 | Air conditioning system for special passenger car |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104786825A (en) * | 2014-01-22 | 2015-07-22 | 比亚迪股份有限公司 | Hybrid electric vehicle and forecabin thereof |
| CN105588262A (en) * | 2015-01-23 | 2016-05-18 | 海信（山东）空调有限公司 | Method for controlling air conditioning equipment and air conditioning equipment |
| CN106183711A (en) * | 2016-07-29 | 2016-12-07 | 徐州天红点车用空调有限公司 | A kind of overhead caravan air-conditioning electric control box structure |
| CN106696642A (en) * | 2017-01-03 | 2017-05-24 | 斯飞乐（苏州）客车冷暖设备制造有限公司 | Air conditioning system of blood collecting vehicle |
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| KR100440157B1 (en) * | 2002-06-25 | 2004-07-12 | 현대자동차주식회사 | Hybrid aircondition system controlling device and method thereof |
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| CN2651027Y (en) * | 2003-09-27 | 2004-10-27 | 严辉 | Truck with separated air-conditioner system |
| CN2860912Y (en) * | 2005-12-13 | 2007-01-24 | 南京汽车集团有限公司 | AC-DC dual-purpose automobile air-conditioning plant |
| CN201000244Y (en) * | 2006-12-29 | 2008-01-02 | 合肥通用制冷设备有限公司 | Multiple electricity system chariot frequency-change air conditioner |
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