CN110254171A - A kind of air conditioning system for automotive vehicles with fast cooling dehumidifying defrosting function - Google Patents
A kind of air conditioning system for automotive vehicles with fast cooling dehumidifying defrosting function Download PDFInfo
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- CN110254171A CN110254171A CN201910575363.0A CN201910575363A CN110254171A CN 110254171 A CN110254171 A CN 110254171A CN 201910575363 A CN201910575363 A CN 201910575363A CN 110254171 A CN110254171 A CN 110254171A
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- check valve
- blower
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 30
- 238000001816 cooling Methods 0.000 title claims abstract description 22
- 238000010257 thawing Methods 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 230000008676 import Effects 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000005357 flat glass Substances 0.000 abstract description 5
- 230000007423 decrease Effects 0.000 abstract description 2
- 239000003507 refrigerant Substances 0.000 description 31
- 238000005057 refrigeration Methods 0.000 description 13
- 238000001704 evaporation Methods 0.000 description 11
- 230000008020 evaporation Effects 0.000 description 11
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 239000011521 glass Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 239000011555 saturated liquid Substances 0.000 description 5
- 238000004781 supercooling Methods 0.000 description 5
- 238000007791 dehumidification Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000001502 supplementing effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
- B60H1/00899—Controlling the flow of liquid in a heat pump system
- B60H1/00907—Controlling the flow of liquid in a heat pump system where the flow direction of the refrigerant changes and an evaporator becomes condenser
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00485—Valves for air-conditioning devices, e.g. thermostatic valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/023—Cleaning windscreens, windows or optical devices including defroster or demisting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
- B60H2001/00935—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices comprising four way valves for controlling the fluid direction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The present invention relates to on-board air conditioner technical fields, particularly relate to a kind of air conditioning system for automotive vehicles with fast cooling dehumidifying defrosting function.Including blower, interior heat exchanger, main road electric expansion valve, bypass electric expansion valve, interior medium temperature grade evaporator, interior blower, gas-liquid separator, the first check valve, second one-way valve, third check valve, the 4th check valve, the 5th check valve, inlet conduits control valve and connecting pipe outside vehicular compressed machine, four-way reversing valve, vehicle external heat exchanger, vehicle.The ingenious matching combination that the present invention passes through an interior medium temperature grade evaporator, two expansion valves and five check valves, the air conditioning system for automotive vehicles solves the outstanding problem that excessive air-conditioning compressor pressure ratio under summer high temperature environment, excessive discharge temperature, refrigerating capacity and coefficient of refrigerating performance sharply decline, the quick removal of autumn and winter front windshield and door and window glass inner side fog is realized again simultaneously, and does not influence interior comfort level completely.
Description
Technical field
The present invention relates to on-board air conditioner technical fields, particularly relate to a kind of automobile with fast cooling dehumidifying defrosting function
Use air-conditioning system.
Background technique
Air conditioning system for automotive vehicles is a kind of air conditioner for adjusting interior temperature and humidity, air freshness and sight clarity,
Comfort and drive safety of its purpose to improve interior driver and passenger.Compared with domestic air conditioning, air conditioning system for automotive vehicles
Working environment has certain particularity: being interior narrow space first, personnel are relatively intensive, the hot moisture phase that human body distributes
To more.The followed by heat-insulated difference of vehicle body, the area of car door glass pane and front and rear windows glass is larger in addition, receives solar radiation
Time is long, and the heat outside vehicle is easy to enter the room by the heat transfer type of thermally conductive, thermal convection and heat radiation.It is summer high temperature again
High humidity easily cause driver's giddy brain rise, situations such as generation of distraction, thought slowness, cause driving accident.It is finally
When the rain and snow weather of autumn and winter, front windshield and door and window glass inner side are easy to be covered by fog, influence driving sight.Cause
This, should have that refrigerating capacity is sufficiently large, cool-down dehumidification demisting wants fast in such environmental working condition air conditioning system for automotive vehicles of having made decision
The features such as fast.
Currently, air conditioning system for automotive vehicles meets the purpose of interior fast cooling frequently with frequency-changeable compressor, but due to vehicle
Interior space structure is limited, steams frequently with small in size, light-weight single full aluminum evaporator when the operation of compressor high-frequency
It is often lower to send out temperature, unit is mainly used for eliminating humidity load, causes vehicle interior temperature to reduce slower.And remove front windshield and
The fog of door and window glass inner side mainly uses two ways, and one is the refrigeration cycle using air conditioning system for automotive vehicles, towards glass
It blows a cold wind on glass quickly removal fog, but the disadvantage is that vehicle interior temperature can be reduced, influences interior comfort level.Another kind is using vapour
The heating of air conditioning system for vehicle recycles, towards glass on blowing hot-air remove fog, do not influence interior comfort level, but the disadvantage is that removal
The speed of fog is slower on glass.
Summary of the invention
The present invention proposes a kind of air conditioning system for automotive vehicles with fast cooling dehumidifying defrosting function, solves existing automobile
The summer car cool-down dehumidification speed existing for air-conditioning system is compared with the prominent technical problem such as slow, winter defogging effect is bad.
The technical scheme of the present invention is realized as follows:
A kind of air conditioning system for automotive vehicles with fast cooling dehumidifying defrosting function, including vehicular compressed machine, four-way reversing valve, vehicle
The outer blower of external heat exchanger, vehicle, interior heat exchanger, main road electric expansion valve, bypass electric expansion valve, interior medium temperature grade evaporator,
Interior blower, the first check valve, second one-way valve, third check valve, the 4th check valve, the 5th check valve, enters gas-liquid separator
One's intention as revealed in what one says road control valve and connecting pipe.
The exhaust outlet of the vehicular compressed machine is connected by four-way reversing valve with the import of vehicle external heat exchanger, is exchanged heat outside vehicle
The outlet of device is connected with the import of second one-way valve and the outlet of third check valve respectively, and vehicle external heat exchanger side is equipped with outside vehicle
Blower；The import of interior heat exchanger is connected with the import of the 4th check valve and the outlet of the 5th check valve respectively, exports and passes through
Four-way reversing valve is connected with the import of gas-liquid separator.
The outlet of the car medium temperature grade evaporator is connected by the first check valve with vehicular compressed machine intermediate fill gas mouth,
Import is connected with the outlet of bypass electric expansion valve, the import of bypass electric expansion valve respectively with main road electric expansion valve into
Mouth, the outlet of second one-way valve, the outlet of the 4th check valve are connected.
The outlet of the gas-liquid separator is connected with the air entry of vehicular compressed machine.
Wind inlet channel in the car is successively mounted side by side in the car heat exchanger, interior medium temperature grade evaporator and interior blower
Interior, interior blower is located at interior medium temperature grade evaporator side, and inlet conduits control valve is located at interior wind inlet channel mouth.
The vehicular compressed machine is the frequency scroll compressor of determining with second vapor injection function, determines the compression of frequency rolling rotor-type
Machine, inverter scroll compressor, any one form in frequency conversion rolling rotor compressor.
The vehicle external heat exchanger, interior heat exchanger, interior medium temperature grade evaporator are fin-tube heat exchanger, stacked heat exchange
Any one structure type in device, parallel flow heat exchanger.
The outer blower of the vehicle, interior blower are frequency conversion fan, determine frequency blower, any one form in gear shift blower.
Beneficial effects of the present invention are as follows:
The present invention provides a kind of air conditioning system for automotive vehicles with fast cooling dehumidifying defrosting function, and novel, unit is set
Meter optimization is ingenious, compared with prior art, has following major advantage:
(1) air conditioning system for automotive vehicles by pressure throttling in bypass electric expansion valve and interior medium temperature grade evaporator level-one evaporation,
The throttling of main road electric expansion valve low pressure and interior heat exchanger dual evaporation are, it can be achieved that summer in-vehicle air or introduce the outer fresh air of vehicle
Quick step cool-down dehumidification, while the refrigerant pressure drop loss of system is significantly reduced, improve the cooling system coefficient of performance.
(2) by the auxiliary adjustment of the refrigeration compressor with second vapor injection function, which is solved
Air-conditioning compressor compression ratio is excessive under worst hot case, excessive discharge temperature, refrigerating capacity and coefficient of refrigerating performance sharply decline it is prominent
It goes wrong, has widened the use temperature range of auto air-con.
(3) pass through interior medium temperature grade evaporator level-one evaporation dehumidifying, interior heat exchanger rapid temperature-raising, the air conditioner for automobile system
System realizes the quick removal of autumn and winter front windshield and door and window glass inner side fog, and does not influence car completely again
Comfort level.
A kind of air conditioning system for automotive vehicles with fast cooling dehumidifying defrosting function of the invention can be widely applied to vapour
All places using air conditioner for vehicle such as vehicle, car or lorry.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is structure principle chart of the invention.
Fig. 2 is double evaporators refrigeration work model process figure.
Fig. 3 is single evaporator refrigeration operating mode flow chart.
Fig. 4 is heating operating mode flow chart.
Fig. 5 is quickly defrosting operating mode flow chart.
Fig. 6 is antifogging operating mode flow chart.
The serial number and title of each component are as follows in Fig. 1: the vehicular compressed machine of 1-；2- four-way reversing valve；3- vehicle external heat exchanger；4-
The outer blower of vehicle；5- car heat exchanger；6- main road electric expansion valve；7- bypass electric expansion valve；8- car medium temperature grade evaporator；9-
Interior blower；10- gas-liquid separator；The first check valve of 11-；12- second one-way valve；13- third check valve；14- the 4th is unidirectional
Valve；The 5th check valve of 15-；16- inlet conduits control valve.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical solution of the present invention is clearly and completely described, it is clear that institute
The embodiment of description is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention,
Those of ordinary skill in the art's every other embodiment obtained under that premise of not paying creative labor, belongs to this hair
The range of bright protection.
As shown in Figure 1, a kind of air conditioning system for automotive vehicles with fast cooling dehumidifying defrosting function of the application, including it is automobile-used
The outer blower 4 of compressor 1, four-way reversing valve 2, vehicle external heat exchanger 3, vehicle, interior heat exchanger 5, main road electric expansion valve 6, bypass electricity
Sub- expansion valve 7, interior medium temperature grade evaporator 8, interior blower 9, gas-liquid separator 10, the first check valve 11, second one-way valve 12,
Third check valve 13, the 4th check valve 14, the 5th check valve 15, inlet conduits control valve 16 and connecting pipe.
The exhaust outlet of the vehicular compressed machine 1 is connected by four-way reversing valve 2 with the import of vehicle external heat exchanger 3, outside vehicle
The outlet of heat exchanger 3 is connected with the import of second one-way valve 12 and the outlet of third check valve 13 respectively, vehicle external heat exchanger 3 one
Side is equipped with the outer blower 4 of vehicle；The import of interior heat exchanger 5 outlet with the import of the 4th check valve 14 and the 5th check valve 15 respectively
It is connected, exports and be connected by four-way reversing valve 2 with the import of gas-liquid separator 10.
The outlet of the car medium temperature grade evaporator 8 passes through the first check valve 11 and vehicular compressed 1 intermediate fill gas mouth phase of machine
Connection, import be connected with the outlet of bypass electric expansion valve 7, the import of bypass electric expansion valve 7 respectively with main road electronic expansion
The import of valve 6, the outlet of second one-way valve 12, the outlet of the 4th check valve 14 are connected.
The outlet of the gas-liquid separator 10 is connected with the air entry of vehicular compressed machine 1.
The car heat exchanger 5, interior medium temperature grade evaporator 8 and interior blower 9 are successively mounted side by side and enter the wind wind in the car
In road, interior blower 9 is located at interior 8 side of medium temperature grade evaporator, and inlet conduits control valve 16 is located at interior wind inlet channel mouth.
The vehicular compressed machine 1 is to determine frequency scroll compressor with second vapor injection function, determine frequency rolling rotor-type pressure
Contracting machine, inverter scroll compressor, any one form in frequency conversion rolling rotor compressor.
The vehicle external heat exchanger 3, interior heat exchanger 5, interior medium temperature grade evaporator 8 be fin-tube heat exchanger, stacked
Any one structure type in heat exchanger, parallel flow heat exchanger.
The outer blower 4 of the vehicle, interior blower 9 are frequency conversion fan, determine frequency blower, any one form in gear shift blower.
The present invention passes through the refrigeration compressor with second vapor injection function, interior medium temperature grade evaporator, two throttlings
The ingenious matching combination of expansion valve, five check valves and a four-way reversing valve, the air conditioning system for automotive vehicles can realize five kinds of works
Operation mode:
(1) double evaporators refrigeration work mode
Fig. 2 is double evaporators operating mode flow chart, when 35 DEG C of summer in-vehicle air temperature or more or when introducing fresh air outside vehicle,
This operating mode can be used.Vehicular compressed machine 1, vehicle outer blower 4, main road electric expansion valve 6, bypass electric expansion valve 7, vehicle at this time
Inner blower 9 starts, and the electromagnetic coil of four-way reversing valve 2 is powered.The workflow of system: the high temperature that vehicular compressed machine 1 is discharged is high
Gaseous refrigerant is pressed to enter vehicle external heat exchanger 3 by four-way reversing valve 2, release heat is condensed into supercooling or saturated liquid refrigeration
Agent passes through the throttling tune of bypass electric expansion valve 7 then by being divided into two-way after second one-way valve 12 for bypass refrigerant all the way
The gas-liquid two-phase cold-producing medium for becoming low-temp low-pressure after section absorbs what interior blower 9 introduced subsequently into interior medium temperature grade evaporator 8
The heat of the outer fresh air of the heat or vehicle of interior return air, the superheated refrigerant steam that evaporation becomes low pressure enter vehicular compressed machine 1
Middle pressure gas supplementing opening；Become the gas-liquid of low-temp low-pressure after the flow restriction control for passing through main road electric expansion valve 6 all the way for main road refrigerant
Then two phase refrigerant passes through the 5th check valve 15 interior return air that 5 double absorption car blower 9 of heat exchanger introduces into the car
Heat or the outer fresh air of vehicle heat, evaporation becomes the superheated refrigerant steam of low pressure, and superheated refrigerant steam is by gas-liquid point
From the air entry for entering vehicular compressed machine 1 after device 10, after the compression of vehicular compressed machine 1, discharge high pressure gaseous refrigeration
Agent initially enters subsequent cycle.The outer fresh air of the interior return air or vehicle that interior blower 9 introduces successively passes through interior medium temperature grade evaporator
8, interior heat exchanger 5, release heat gradually dry by step cooling, and being then fed into car quickly reduces vehicle interior temperature and humidity.
(2) single evaporator refrigeration operating mode
Fig. 3 is single evaporator refrigeration operating mode flow chart, when summer, in-vehicle air temperature was between 20 DEG C -34 DEG C,
This operating mode can be used.The outer blower 4 of vehicular compressed machine 1, vehicle, main road electric expansion valve 6, interior blower 9 start at this time, bypass
Electric expansion valve 7 is closed, and the electromagnetic coil of four-way reversing valve 2 is powered.The workflow of system: the height that vehicular compressed machine 1 is discharged
Warm high-pressure gaseous refrigerant enters vehicle external heat exchanger 3 by four-way reversing valve 2, and release heat is condensed into supercooling or saturated liquid system
Cryogen, then by passing through main road electric expansion valve 6 after second one-way valve 12, after the flow restriction control of main road electric expansion valve 6
Become the gas-liquid two-phase cold-producing medium of low-temp low-pressure, then heat exchanger 5 absorbs interior blower 9 into the car by the 5th check valve 15
The heat of the outer fresh air of the heat or vehicle of the interior return air of introducing, evaporation become the superheated refrigerant steam of low pressure, superheated refrigerant
Steam enters the air entry of vehicular compressed machine 1 after gas-liquid separator 10, and after the compression of vehicular compressed machine 1, discharge is high
Warm high-pressure gaseous refrigerant, initially enters subsequent cycle.The outer fresh air of the interior return air or vehicle that interior blower 9 introduces successively passes through vehicle
Interior medium temperature grade evaporator 8, interior heat exchanger 5, discharging heat, gradually step cooling is dried, and being then fed into car quickly reduces car
Temperature and humidity.
(3) operating mode is heated
Fig. 4 is that this operating mode can be used when winter, car needed heat supply in heating operating mode flow chart.Automobile-used pressure at this time
The outer blower 4 of contracting machine 1, vehicle, main road electric expansion valve 6, interior blower 9 start, and bypass electric expansion valve 7 is closed, four-way reversing valve 2
Electromagnetic coil be powered.The workflow of system: the high temperature and high pressure gaseous refrigerant that vehicular compressed machine 1 is discharged is commutated by four-way
Valve 2 enters vehicle external heat exchanger 3, and release heat is condensed into supercooling or saturated liquid refrigerant, then by after second one-way valve 12
By main road electric expansion valve 6, become the gas-liquid two-phase refrigeration of low-temp low-pressure after the flow restriction control of main road electric expansion valve 6
Agent, then by the 5th check valve 15, medium temperature grade evaporator 5 absorbs the heat of the interior return air that interior blower 9 introduces into the car
Or the heat of the outer fresh air of vehicle, evaporation become the superheated refrigerant steam of low pressure, superheated refrigerant steam passes through gas-liquid separator 10
High temperature and high pressure gaseous refrigerant is discharged after the compression of vehicular compressed machine 1 in the air entry for entering vehicular compressed machine 1 afterwards, starts
Into subsequent cycle.The outer fresh air of the interior return air or vehicle that interior blower 9 introduces successively passes through interior medium temperature grade evaporator 8, car
Heat exchanger 5, release heat gradually dry by step cooling, is then fed into interior quickly reduction vehicle interior temperature and humidity.
(4) quickly defrosting operating mode
Fig. 5 is that this Working mould can be used when winter, car relative humidity was 70% or more in quickly defrosting operating mode flow chart
Formula.Vehicular compressed machine 1, main road electric expansion valve 6, bypass electric expansion valve 7 start at this time, and the outer blower 4 of vehicle, interior blower 9 close
It closes, the electromagnetic coil of four-way reversing valve 2 is powered.The workflow of system: the high pressure gaseous refrigeration that vehicular compressed machine 1 is discharged
Agent enters vehicle external heat exchanger 3 by four-way reversing valve 2, and release heat is condensed into supercooling or saturated liquid refrigerant, then passes through
It is divided into two-way after second one-way valve 12, becomes low after the flow restriction control for passing through bypass electric expansion valve 7 all the way for bypass refrigerant
The gas-liquid two-phase cold-producing medium of warm low pressure absorbs interior heat subsequently into interior medium temperature grade evaporator 8, and evaporation becomes the mistake of low pressure
Warm refrigerant steam enters the middle pressure gas supplementing opening of vehicular compressed machine 1；Pass through main road electric expansion valve 6 all the way for main road refrigerant
Become the gas-liquid two-phase cold-producing medium of low-temp low-pressure after flow restriction control, then passes through the 5th check valve 15 heat exchanger 5 two into the car
The interior heat of secondary absorption, evaporation become the superheated refrigerant steam of low pressure, and superheated refrigerant steam is after gas-liquid separator 10
Into the air entry of vehicular compressed machine 1, after the compression of vehicular compressed machine 1, be discharged high temperature and high pressure gaseous refrigerant, start into
Enter subsequent cycle.
(5) antifogging operating mode
Fig. 6 is that this work can be used when autumn and winter, car relative humidity was 70% or more in rapid moisture removal operating mode flow chart
Operation mode.The outer blower 4 of vehicular compressed machine 1, vehicle, main road electric expansion valve 6, bypass electric expansion valve 7, interior blower 9 open at this time
Dynamic, the electromagnetic coil of four-way reversing valve 2 is powered.The workflow of system: the high pressure gaseous refrigeration that vehicular compressed machine 1 is discharged
By four-way reversing valve 2, heat exchanger 5, release heat are condensed into supercooling or saturated liquid refrigerant, then pass through into the car for agent
It is divided into two-way after 4th check valve 14, becomes low after the flow restriction control for passing through bypass electric expansion valve 7 all the way for bypass refrigerant
The gas-liquid two-phase cold-producing medium of warm low pressure absorbs the interior return air that interior blower 9 introduces subsequently into interior medium temperature grade evaporator 8
The heat of heat or the outer fresh air of vehicle, the superheated refrigerant steam that evaporation becomes low pressure enter the middle pressure gas supplementing opening of vehicular compressed machine 1；
Become the gas-liquid two-phase cold-producing medium of low-temp low-pressure after the flow restriction control for passing through main road electric expansion valve 6 all the way for main road refrigerant,
Then the superheated refrigerant steam for becoming low pressure is evaporated into vehicle external heat exchanger 3 by third check valve 13, superheated refrigerant is steamed
Vapour enters the air entry of vehicular compressed machine 1 after gas-liquid separator 10, and after the compression of vehicular compressed machine 1, high temperature is discharged
High-pressure gaseous refrigerant initially enters subsequent cycle.The outer fresh air of the interior return air or vehicle that interior blower 9 introduces successively passes through car
Medium temperature grade evaporator 8, interior heat exchanger 5 are quickly increased by interior 8 level-one of medium temperature grade evaporator evaporation dehumidifying, interior heat exchanger 5
Temperature, realizes the quick removal of autumn and winter front windshield and door and window glass inner side fog, and does not influence car completely again
Comfort level.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of air conditioning system for automotive vehicles with fast cooling dehumidifying defrosting function, it is characterised in that: including vehicular compressed machine
(1), the outer blower (4) of four-way reversing valve (2), vehicle external heat exchanger (3), vehicle, interior heat exchanger (5), main road electric expansion valve (6),
Bypass electric expansion valve (7), interior medium temperature grade evaporator (8), interior blower (9), gas-liquid separator (10), the first check valve
(11), second one-way valve (12), third check valve (13), the 4th check valve (14), the 5th check valve (15), inlet conduits control
Valve (16) and connecting pipe.
2. the air conditioning system for automotive vehicles according to claim 1 with fast cooling dehumidifying defrosting function, it is characterised in that:
The exhaust outlet of the vehicular compressed machine (1) is connected by four-way reversing valve (2) with the import of vehicle external heat exchanger (3), is changed outside vehicle
The outlet of hot device (3) is connected with the import of second one-way valve (12) and the outlet of third check valve (13) respectively, exchanges heat outside vehicle
Device (3) side is equipped with the outer blower (4) of vehicle；The import of interior heat exchanger (5) import and the 5th with the 4th check valve (14) respectively
The outlet of check valve (15) is connected, exports and is connected by four-way reversing valve (2) with the import of gas-liquid separator (10).
3. the air conditioning system for automotive vehicles according to claim 1 with fast cooling dehumidifying defrosting function, it is characterised in that:
The outlet of the car medium temperature grade evaporator (8) is connected by the first check valve (11) with vehicular compressed machine (1) intermediate fill gas mouth
Connect, import is connected with the outlet of bypass electric expansion valve (7), the import of bypass electric expansion valve (7) is swollen with main road electronics respectively
The import of swollen valve (6), the outlet of second one-way valve (12), the outlet of the 4th check valve (14) are connected.
4. the air conditioning system for automotive vehicles according to claim 1 with fast cooling dehumidifying defrosting function, it is characterised in that:
The outlet of the gas-liquid separator (10) is connected with the air entry of vehicular compressed machine (1).
5. the air conditioning system for automotive vehicles according to claim 1-4 with fast cooling dehumidifying defrosting function,
Be characterized in that: the car heat exchanger (5), interior medium temperature grade evaporator (8) and interior blower (9) are successively mounted side by side in the car
In wind inlet channel, interior blower (9) is located at interior medium temperature grade evaporator (8) side, and inlet conduits control valve (16) is located at car
At wind inlet channel mouth.
6. the air conditioning system for automotive vehicles according to claim 5 with fast cooling dehumidifying defrosting function, it is characterised in that:
The vehicular compressed machine (1) is the frequency scroll compressor of determining with second vapor injection function, determines frequency rolling rotor compressor, becomes
Any one form in frequency scroll compressor, frequency conversion rolling rotor compressor.
7. the air conditioning system for automotive vehicles according to claim 5 with fast cooling dehumidifying defrosting function, it is characterised in that:
The vehicle external heat exchanger (3), interior heat exchanger (5), interior medium temperature grade evaporator (8) are fin-tube heat exchanger, stacked change
Any one structure type in hot device, parallel flow heat exchanger.
8. the air conditioning system for automotive vehicles according to claim 5 with fast cooling dehumidifying defrosting function, it is characterised in that:
The outer blower (4) of the vehicle, interior blower (9) are frequency conversion fan, determine frequency blower, any one form in gear shift blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910575363.0A CN110254171B (en) | 2019-06-28 | 2019-06-28 | Air conditioning system with rapid cooling, dehumidifying and demisting functions for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910575363.0A CN110254171B (en) | 2019-06-28 | 2019-06-28 | Air conditioning system with rapid cooling, dehumidifying and demisting functions for automobile |
Publications (2)
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| CN112556189A (en) * | 2020-12-04 | 2021-03-26 | 广东万和热能科技有限公司 | Gas heating water heater |
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