CN101628534B - Automotive air conditioning system and automobile provided with system - Google Patents
Automotive air conditioning system and automobile provided with system Download PDFInfo
- Publication number
- CN101628534B CN101628534B CN200810133590XA CN200810133590A CN101628534B CN 101628534 B CN101628534 B CN 101628534B CN 200810133590X A CN200810133590X A CN 200810133590XA CN 200810133590 A CN200810133590 A CN 200810133590A CN 101628534 B CN101628534 B CN 101628534B
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- fluid
- heat exchanger
- evaporator
- refrigerant fluid
- condenser
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 8
- 239000012530 fluid Substances 0.000 claims abstract description 76
- 239000003507 refrigerant Substances 0.000 claims description 44
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 21
- 238000001816 cooling Methods 0.000 claims description 15
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- 238000010792 warming Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 6
- 239000001569 carbon dioxide Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 claims 1
- 230000008020 evaporation Effects 0.000 claims 1
- 239000000110 cooling liquid Substances 0.000 abstract 5
- 150000001875 compounds Chemical class 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses an automotive air conditioning system, which comprises at least one heat exchanger (11), at least one heat exchanger (8) and an integrating device (16), wherein the heat exchanger (11) is used for heat exchange between external air and corresponding intermediate fluid; the heat exchanger (8) is used for heat exchange between air in a passenger compartment (4) and corresponding intermediate fluid; and at least one cooling liquid condenser (21), at least one cooling liquid evaporator (22) and an internal heat exchanger (19) of the integrating device are integrated together. The internal heat exchanger (19) is designed to carry out heat exchange between cooling liquid from the evaporator (22) and cooling liquid from the condenser (21). The integrating device (16) and a cooling liquid compressor (17) are arranged in an engine compartment (2) together.
Description
Technical field
The present invention relates generally to a kind of automotive air-conditioning system, and relate to the automobile of equipping this system.
The present invention be more particularly directed to the a/c system of riding vehicle as described below, but also be without loss of generality simultaneously.
Background technology
In the riding vehicle field, known a/c system comprises a heating pipe line, this pipeline is used for providing at least one H Exch and adds hot fluid, this exchanger provides a fan and carries hot blast to automobile, in addition, also comprise a cooling line, being used for heat exchanger provides refrigerant fluid, so that provide cold air stream to automobile.
In general, heating pipe line is the extend through car combustion engine all, and engine coolant flows through through its next door.Like this, use part refrigerant fluid from automotive engine-before it enters common radiator-just can the obtain hot fluid that adds that is used to heat automobile that heat exchanger provides.Cooling line comprises successively: compressor, condenser, expansion valve and evaporator.
In known automotive air-conditioning system, present employed refrigerant fluid generally all has very high global warming potential (GWP).In order to reduce green-house effect, European Union has issued a standard, stipulates that described refrigerant fluid can not surpass given range to the annual emissions of air environment.In addition, since 2011, global warming potential (GWP) must withdraw from use greater than 150 refrigerant fluid.
For this reason, the someone has proposed use carbon dioxide (CO
2) refrigerant fluid, this refrigerant fluid has extremely low global warming potential.When this liquid uses as refrigerating gas, can present very high operation pressure (30-140 crust).For this reason, described fluid requires pipeline and corresponding pad can both bear described operation pressure.
In addition, people have also proposed use 1.1-difluoromethane gas, are referred to as R152a, and the global warming potential of this gas (GWP) is within the scope of above-mentioned standard, but it is easy to burning comparatively speaking.
In known a/c system, condenser generally all places the place ahead of automotive front radiator, so that the entering of extraneous air.Then be compressor, be placed in the machinery space, drive by a drive belt by the automotive engine beam warp usually.Be evaporator at last, be placed in the passenger compartment-for example-below of instrument carrier panel that generally, the latter separates machinery space and passenger compartment at fireproof brickwork behind.In machinery space, an inner heat exchanger also is housed, be connected on the condenser by first circulation line, and be connected on the evaporator by second circulation line.Using carbon dioxide (CO
2) during the refrigerant fluid a/c system, this exchanger is special needs, so that increase its usefulness.
The top existing a/c system of introducing has some defective.At first, above each listed part requirement use corresponding anchor fitting, the result, it is very complicated that the installation of system seems, and the cost height.In addition, two necessary pipes of pipeline are all very long, bear the very heat dispersion of high level, require to use a large amount of refrigerant fluids.At last, described pipe and corresponding pad make the use of known low global warming potential refrigerant fluid be difficult to realize.
In fact, at carbon dioxide (CO
2) under the refrigerant fluid situation, pipe is long more, connecting bridge is many more, and the possibility of leakage is big more, and the cost of system also will be high more.In addition, pipe belong to that the sort of cost is the highest, one of the parts that are difficult to produce.Under R152a gas situation, connecting bridge is many more, and the possibility that potential combustible material leaks is big more.
Summary of the invention
The purpose of this invention is to provide a kind of automotive air-conditioning system, described system does not have above-mentioned defective, can use the lower refrigerant fluid of global warming potential (GWP).
According to the present invention, above-mentioned purpose can realize by a kind of automotive air-conditioning system, this automobile has passenger compartment and machinery space, described a/c system comprises at least one first H Exch, be used for externally carrying out interchange of heat between the air and first central fluid, also comprise at least one second H Exch, be used in described passenger compartment, carrying out interchange of heat between the air and second central fluid; Described a/c system also comprises a condenser, it is characterized in that, refrigerant fluid discharges (yields) heat to described first central fluid; An evaporator, wherein, described refrigerant fluid is discharged (substracts) with the heat in described second intermediate liquid; An inner heat exchanger is designed to be used for carrying out interchange of heat from the refrigerant fluid of described evaporator with between from the fluid of described condenser; Described a/c system is characterised in that described at least condenser, described evaporator and described inner heat exchanger integrate, thereby forms a single unit system, can be seated in the described machinery space.
Description of drawings
In order to understand the present invention better, introduce embodiment in conjunction with the accompanying drawings and by example now, but the present invention is not limited in the example of giving.Accompanying drawing is as follows:
-Fig. 1 is the automobile scheme drawing that is equipped with according to a/c system of the present invention;
-Fig. 2 is the single unit system scheme drawing of system shown in Figure 1;
-Fig. 3 is the another kind of form of single unit system shown in Figure 2.
The specific embodiment
Referring to Fig. 1, the whole riding vehicle of reference number 1 expression, a preferred car, this car comprise a machinery space 2 (the with dashed lines dotted line is represented), and general automobiles driving engine 3 (dotting) are installed in the cabin.Automobile 1 also comprises a passenger compartment 4 (also only part adopts the dotted line dotted line to represent).Passenger compartment 4 separates (the with dashed lines double dotted line is represented) with so-called " fireproof brickwork " 6 of machinery space 2 usefulness.
Automobile 1 equipment one cover a/c system represents with reference number 7 that generally it comprises a H Exch 8, be used for water of air and central fluid in passenger compartment-for example and ethylene glycol mixture-between carry out interchange of heat.H Exch 8 preferably is arranged in the passenger compartment 4, for example below Automobile instrument, also comprises a fan 9, can select to deliver to H Exch 8 from the air in air outside or the passenger compartment 4.
A/c system 7 also comprises another H Exch, is used for externally carrying out interchange of heat between the air and central fluid, and described central fluid can be identical with the central fluid of H Exch 8.Particularly, this H Exch can be made of the common radiator 11 of cooled engine 3, generally is positioned at the front portion in driving engine 3 cabins 2.Radiator 11 comprises a hydraulic tubing 12, and the latter receives the compound that has cooled off driving engine 3, and by circulation pump 13, compound is delivered to radiator 11.Extraneous air flows through radiator 11 by another fan 14.
A/c system 7 also comprises a fridge equipment, and whole device represents that with code name 16 wherein, refrigerant fluid carries out refrigerating cycle, so that can carry out interchange of heat between the central fluid of the central fluid of H Exch 8 and radiator 11.The refrigerating cycle cycle is controlled by compressor 17 refrigerant fluid is compressed.Compressor 17 also is positioned at driving engine 3 cabins 2, and via motion transfering device (not showing among Fig. 1), the axle 18 that is driven by driving engine 3 drives.
Following clear shown in, fridge equipment 16 comprises an inner heat exchanger 19 (Fig. 2), a condenser 21 and an evaporator 22.In condenser 21, refrigerant fluid is to the central fluid release heat of radiator 11, and in evaporator 22, refrigerant fluid is then got rid of the heat in (substracts) H Exch 8 central fluid.At last, a/c system 7 also comprises the device and the valve system (not shown) of air humidity in the control passenger compartment, makes that the adjustment of passenger compartment 4 can be under the control of manual regulating device and calorstat.
According to the present invention, interior environment system 16 integrates, thereby forms a single unit system, hereinafter to be referred as " single unit system " enbloc " is represented with code name 16 in the accompanying drawings equally, is installed in driving engine 3 cabins 2.Particularly, be integrated in and have inner heat exchanger 19, condenser 21 and evaporator 22 at least in the single unit system 16.
Cooling line 23 has an inlet 24 on single unit system, be used for the input port via the refrigerant fluid of compressor 17 compressions, also has an outlet 26, is used for refrigerant fluid and turns back to compressor 17.Specifically be that inlet 24 is sent the liquid of compression into condenser 21, exports 26 and then will turn back to compressor 17 from the liquid of inner heat exchanger 19.
In addition, inner heat exchanger 19 has been received on the evaporator 22 by an expansion valve 37, and expansion valve is designed to receive the liquid coolant from inner heat exchanger 19, and cooling gaseous fluid is delivered to evaporator 22.At last, condenser 21 is connected on the inner heat exchanger 19 by a conduit 38, and evaporator 22 then is connected on the described H Exch 19 by another conduit 39.
The principle of work of a/c system is as described below:
During use, compressor 17 compressed cooling liquids, and be increased to higher pressure with gas form once more.By the inlet 24 of cooling line 23, described fluid enters condenser 21 with liquid phase, circulates at this from the water and the ethylene glycol mixture of radiator 11.Then, refrigerant fluid produces (yields) heat and gives compound, and therefore obtains cooling, and simultaneously, by exporting 26 and pump 31, this compound turns back to radiator 11 again with the compound of cooled engine 3.
So enter into inner heat exchanger 19 through the refrigerant fluid of over cooling by conduit 38, flow to the downforce table and arrive evaporator 22 via expansion valve 37 automatic heat-exchangers, herein, under the state of two-phase, refrigerant fluid obtains heating.By the outlet 34 that comes from evaporator drier 22, water and ethylene glycol mixture are sent to H Exch 8, and here, compound has absorbed the heat of the air in the passenger compartment 4.By the inlet 33 of pipeline 32, pump 36 will arrive circulation between the evaporator 22 at H Exch through the compound of heating.At this moment, refrigerant fluid cools off the compound that comes automatic heat-exchanger 8, and turns back to H Exch 8 through outlet 34.
In evaporator 22, refrigerant fluid obtains the part heating, and enters into inner heat exchanger 19 by conduit 39, at this, carries out interchange of heat with the refrigerant fluid that enters by pipeline 38.In inner heat exchanger 19, before entering into evaporator 22, obtain cooling from the refrigerant fluid of condenser 21, come the refrigerant fluid of from evaporator drier 22 then to be heated, and turn back to compressor 17 by exporting 26.
Another kind of form according to Fig. 3, single unit system 16 also comprises compressor 17, its constituted mode is such, with the only link of external environment condition be by interior have central fluid-be water and ethylene glycol mixture-pipe constitute, and between compressor and driving engine, take mechanical couplings.As for other parts, identical with system principle illustrated in figures 1 and 2 according to the principle of work of another kind of system shown in Figure 3.
From above as can be seen, to compare with the system of prior art be conspicuous to the advantage of a/c system of the present invention.At first, single unit system 16 is very easy to the installation of system on automobile.In addition, the circulate pipe of various pipelines of fluid is not very long between each parts of single unit system.Therefore, on the one hand, the required refrigerant fluid quantity of system's normal operation descends, and on the other hand, thereby because the carbon dioxide high pressure or since the risk that R152a fluid comb. is brought also be minimized.
In addition, because refrigerant fluid is to be carried by inner heat exchanger 19 cooling lines 23 specially, so need not to offer H Exch 8 refrigerant fluids in the passenger compartment 4.H Exch 8 can also carry out clean, and pipeline 23,27 and 32 is apart opening, thereby has simplified the maintenance and repair that may need, and like this, breaks down or when wearing and tearing, as long as provide for simple replacement of the pipeline of damage.At last, in another kind of mode shown in Figure 3, the combination of compressor 17 can further reduce the risk of the adiabatic loss and the refrigerant fluid overflow of H Exch in the single unit system 16.
Obviously, described system can carry out various repacking and improvement, but does not all break away from the claims scope.For example, refrigerant fluid and one or both central fluid can be different with described liquid.In addition, estimate in passenger compartment, to use a more than H Exch, and the quantity of the pump of various fluid circulation usefulness also can be different.Also have, the H Exch 11 that carries out interchange of heat with extraneous air can be different resolutely with the radiator of driving engine 3, and can be arranged near the single unit system 16.At last, the position of single unit system 16 also can change in the machinery space 2.
Claims (13)
1. an automotive air-conditioning system (7), this automobile has a passenger compartment (4) and a machinery space (2), described a/c system (7) comprises at least one first H Exch (11), be used for the interchange of heat between the extraneous air and first central fluid, with at least one second H Exch (8), be used for the interchange of heat between the interior air of described passenger compartment (4) and second central fluid; Described a/c system (7) also comprises a condenser (21), wherein, refrigerant fluid is to the described first central fluid release heat, one evaporator (22), wherein, described refrigerant fluid absorbs the heat from second central fluid, and an inner heat exchanger (19), is designed to carrying out interchange of heat from the refrigerant fluid of described evaporator (22) with between from the fluid of described condenser (21); Described a/c system (7) is characterised in that, at least described condenser (21), described evaporator (22) and described inner heat exchanger (19) integrate, so just can form a single unit system (16), can be installed in the described machinery space (2).
2. a/c system according to claim 1, it is characterized in that, described refrigerant fluid is to keep circulation by compressor (17) between described condenser (21), described evaporator (22) and described inner heat exchanger (19), and described compressor also is positioned at described machinery space (2).
3. a/c system according to claim 2 is characterized in that, described compressor (17) is handled by the motion transmitting device by automotive engine (3).
4. a/c system according to claim 3 is characterized in that, described compressor (17) is integrated in the described single unit system.
5. a/c system according to claim 2 is characterized in that, an expansion valve (37) is set, the evaporation of useful described refrigerant fluid between described inner heat exchanger (19) and described evaporator (22).
6. a/c system according to claim 5 is characterized in that, described each H Exch (8,11) comprise a corresponding circulation line (27,32), corresponding central fluid is used for circulating, each described circulation line (27,32) comprises a corresponding circulation pump (31,36).
7. a/c system according to claim 6, it is characterized in that, described inner heat exchanger (19) is the part of cooling line (23), it comprises described compressor (17), described condenser (21), an expansion valve (37) and described evaporator, and these devices all are arranged in the described cooling line (23) successively.
8. a/c system according to claim 6 is characterized in that, each described central fluid all is a kind of water and ethylene glycol mixture.
9. a/c system according to claim 6 is characterized in that described central fluid is all mutually the same.
10. a/c system according to claim 1 is characterized in that, described refrigerant fluid is a kind of fluid with low global warming potential.
11. a/c system according to claim 10 is characterized in that, described refrigerant fluid is made of carbon dioxide, or constitute by liquid.
12. a/c system according to claim 1 is characterized in that, it comprises the fan (9,14) that matches with each described H Exch (8,11), is used to ventilate through corresponding heat exchanger (8,11).
13. an automobile, it has comprised a/c system according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810133590XA CN101628534B (en) | 2008-07-17 | 2008-07-17 | Automotive air conditioning system and automobile provided with system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810133590XA CN101628534B (en) | 2008-07-17 | 2008-07-17 | Automotive air conditioning system and automobile provided with system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101628534A CN101628534A (en) | 2010-01-20 |
| CN101628534B true CN101628534B (en) | 2011-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810133590XA Expired - Fee Related CN101628534B (en) | 2008-07-17 | 2008-07-17 | Automotive air conditioning system and automobile provided with system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101628534B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3052856B1 (en) * | 2016-06-21 | 2019-06-14 | Valeo Systemes Thermiques | CIRCULATING LOOP OF A REFRIGERANT FLUID FOR A VEHICLE |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1223369A (en) * | 1998-01-16 | 1999-07-21 | 刘甄 | Fuel-saving lithium bromide refrigerating and heating set for motor vehicles |
| CN1295224A (en) * | 1999-11-04 | 2001-05-16 | 多堆垛国际有限公司 | Modular combined refrigerating device |
| CN1172142C (en) * | 2000-07-06 | 2004-10-20 | 株式会社电装 | Coolant circulating system having hot-air bypath structure |
| CN1603719A (en) * | 2004-11-17 | 2005-04-06 | 上海理工大学 | Cold tube type combined adsorptive air conditioning unit utilizing waste heat of vehicle engine |
-
2008
- 2008-07-17 CN CN200810133590XA patent/CN101628534B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1223369A (en) * | 1998-01-16 | 1999-07-21 | 刘甄 | Fuel-saving lithium bromide refrigerating and heating set for motor vehicles |
| CN1295224A (en) * | 1999-11-04 | 2001-05-16 | 多堆垛国际有限公司 | Modular combined refrigerating device |
| CN1172142C (en) * | 2000-07-06 | 2004-10-20 | 株式会社电装 | Coolant circulating system having hot-air bypath structure |
| CN1603719A (en) * | 2004-11-17 | 2005-04-06 | 上海理工大学 | Cold tube type combined adsorptive air conditioning unit utilizing waste heat of vehicle engine |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2007-333294A 2007.12.27 |
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| Publication number | Publication date |
|---|---|
| CN101628534A (en) | 2010-01-20 |
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Granted publication date: 20111123 |