CN1186568C - Automotive air conditioner - Google Patents
Automotive air conditioner Download PDFInfo
- Publication number
- CN1186568C CN1186568C CNB031315038A CN03131503A CN1186568C CN 1186568 C CN1186568 C CN 1186568C CN B031315038 A CNB031315038 A CN B031315038A CN 03131503 A CN03131503 A CN 03131503A CN 1186568 C CN1186568 C CN 1186568C
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- China
- Prior art keywords
- cooling coil
- storage
- compressor
- cold
- evaporator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001816 cooling Methods 0.000 claims abstract description 56
- 239000007788 liquid Substances 0.000 claims description 22
- 230000001105 regulatory effect Effects 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 9
- 238000004378 air conditioning Methods 0.000 abstract description 22
- 239000003507 refrigerant Substances 0.000 description 30
- 238000005057 refrigeration Methods 0.000 description 16
- 238000001704 evaporation Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000002309 gasification Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000009194 climbing Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 239000012782 phase change material Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Air-Conditioning For Vehicles (AREA)
Abstract
The present invention discloses an automobile air conditioner having a cold storage function, which comprises a compressor (1), a condenser (2) and an evaporator (3) which are connected in series. The present invention is characterized in that the present invention also comprises a cold storage device which is connected in parallel with the evaporator. By using the automobile air conditioner of the present invention, when an automobile runs in low speed or stops running, the compressor of the air conditioner can stop working, and the cold storage system is started for supplying cold for the inside of the automobile; when the automobile runs normally and the required cold quantity in the automobile is larger than the rated cooling capacity of an air conditioning system, the cold storage system can be started for supplying the cold to the inside of the automobile so as to compensate the insufficiency of the rated cooling capacity of the air conditioning system.
Description
One, technical field
The present invention relates to a kind of A/C, more particularly relate to a kind of motorcar air conditioner with the cold function of storage.
Two, background technology
According to introducing " automobile air conditioning technology " (China Machine Press, in January, 2002), air conditioning for automobiles can be divided into self-contained air-conditioner and non-self-contained air-conditioner according to the type of drive difference.Self-contained air-conditioner is exactly to be equipped with the propulsion source (as bus air conditioner) of special assistant engine as compressor, but not self-contained air-conditioner is by automobile sustainer, main engine direct drive compressor (as car, wagon air-conditioning and lorry air-conditioning etc.).
Independent automobile air-conditioning drives air-conditioning compressor with a driving engine separately, and its refrigeration system is not subjected to the influence of sustainer, main engine.Have only motor omnibus that enough space mounting self-contained air-conditioners are just arranged, in the self-contained air-conditioner system, compressor rotary speed is constant substantially, and compressor and condenser can be made commonality unit preferably, so that design is selected for use.Its advantage is the influence that refrigerating capacity is not subjected to the sustainer, main engine rotating speed, and refrigeration system does not have influence to travelling of automobile yet, and when auto idle speed travelled or stop, its refrigeration system is normally operation in the same old way.Shortcoming is a complex structure, has increased the weight of car load and has arranged difficulty.
Non-independent automobile air-conditioning drives compressor operation by sustainer, main engine, and is controlled by magnetic clutch.When energized, magnetic clutch adhesive, compressor starts running refrigeration; When power cut-off, magnetic clutch is thrown off, and compressor quits work, and has realized the control of compressor start-stop, thereby regulates the supply of cold air, reaches the purpose of control car indoor temperature.Its advantage be simple in structure, be convenient to mounting arrangements, noise is little.Shortcoming is the power that needs to consume sustainer, main engine 10-15%, directly influences the acceleration capability and the hill climbing ability of automobile, and its refrigerating capacity is influenced by automobile driving speed simultaneously, if automobile is out of service, its a/c system is also out of service.
On non-independent automobile air-conditioning, speed of a motor vehicle controller all is installed, its objective is when automobile sustainer, main engine rotating speed and cross (idling) when low, be to guarantee normal working of engine, prevent engine overheat and a kind of measure of control of taking.Its control method be when automobile start, climbing and when travelling at a slow speed, the rotating speed of driving engine is lower than a preset value, speed of a motor vehicle controller just cuts off electromagnetic clutch power, and magnetic clutch is thrown off, and refrigeration system promptly quits work with the load that reduces driving engine and guarantees safety.When engine speed was higher than preset value, speed of a motor vehicle controller was connected electromagnetic clutch power, the electromagnetic clutch for compressor adhesive, and refrigeration system is just started working.Its weak point is that a/c system at this moment can not be to the indoor cooling of car.
Motorcar air conditioner all designs by standard duty and mates, its operating condition is influenced by automobile driving speed during real work, when galloping, the rotating speed of air-conditioning compressor raises with the rising of sustainer, main engine rotating speed, the free air capacity of compressor also increases thereupon, the refrigerating capacity of a/c system will increase, and greater than the required refrigerating capacity of the indoor reality of car, at this moment control system is just cut off electromagnetic clutch power, and magnetic clutch is thrown off, refrigeration system quits work, when treating that the car indoor temperature rises to setting, control system recloses electromagnetic clutch power, and refrigeration system is devoted oneself to work, so, air conditioning for automobiles is when running at high speed, and refrigeration system is often opened, stop control, the car fluctuations in indoor temperature is bigger, magnetic clutch is frequently thrown off simultaneously, engage, had a strong impact on its service life.In addition, when galloping, the free air capacity of compressor increases, and flow regulating valve in the a/c system and evaporator size design and arrange by rated capacity, refrigerant flow by flow regulating valve and evaporator can not satisfy the needs that the compressor air-discharging amount increases, this just certainly will cause the suction pressure of compressor to descend, and causes that the suction of compressor, exhaust pressure ratio raise, and the compressor power consumption increases.Because compressor air suction pressure decay, its evaporating pressure and evaporating temperature also descend, and will produce frosting on the evaporator fin surface thereupon, cause that evaporator air output and refrigerating capacity descend, serious situation will make the refrigeration system cisco unity malfunction.
The condenser of non-independent automobile air-conditioning system generally all is arranged on before the engine water tank radiator, and when running car moved, the wind that travels of its generation helped the condenser heat radiation, and its condensing pressure and condensing temperature are in the normal operating range.When automobile stops to travel, if start the engine work, the running of driving air-conditioning compressor, at this moment the radiating condition of condenser is relatively poor, its condensing pressure and condensing temperature raise unusually, load increasing, the power consumption of air-conditioning compressor are increased, also can make the engine radiating water tank cause " boiling " phenomenon (water in the engine water tank comes to life) simultaneously, make the automotive engine cisco unity malfunction.Therefore, when the automobile stagnation of movement, can not open a/c system, this is another weak point of non-independent automobile air-conditioning.
Three, summary of the invention
1, goal of the invention: the purpose of this invention is to provide a kind of motorcar air conditioner,, can stop air-conditioning compressor work, started cold-storage system to the indoor cooling of car when auto idle speed or when stopping to travel with the cold function of storage; When automobile normal running and the indoor chilling requirement of car during greater than the specified cooling amount of a/c system can start cold-storage system to the indoor additional cooling of car, to remedy the deficiency of the specified cooling amount of a/c system.
2, technical scheme
A kind of motorcar air conditioner with the cold function of storage comprises compressor, condenser and evaporator, and the three is connected in series; It is characterized in that it also comprises cool storage container, this cool storage container and evaporator are connected in parallel.
Cool storage container of the present invention can comprise the storage cooling coil, release cooling coil and storage cold material, store up cooling coil and release cooling coil and place the storage cold material, the two ends of wherein storing up cooling coil are connected with condenser with compressor respectively, when being used for galloping, the unnecessary cold of a/c system is stored; Release cooling coil and between cool storage container and evaporator assembly, form a circulation release loop, when being used for auto idle speed or parking, start cold-storage system to the indoor additional cooling of car.
Also be connected with liquid storage dryer, electromagnetic valve and flow regulating valve in turn between condenser of the present invention and the storage cooling coil, constitute storage cold cycle system, and control storage cold cycle system works; In releasing the cooling coil circulation loop, also be in series with air cooling heat exchanger and circulation pump, constitute and release cooling system, and the cold cycle system works released in control.
Described compressor is piston type, orbiting vane, rolling rotor-type, three-cornered rotor formula, screw or vortex.
Described condenser is pipe type, corrugated tube type or parallel flow type.
Described evaporator is pipe type, corrugated tube type or stacked.
Described flow regulating valve is heating power expansion valve or electric expansion valve.
Described air cooling heat exchanger is pipe type or corrugated tube type.
Described storage cooling coil, release cooling coil and adopt spiral tubular coil, sinuous coil or " U " shape coil pipe.
Described storage cooling coil, to release cooling coil be light pipe, threaded line pipe or fin tube.
Described cool storage container is cuboid or cylinder, and adopts warm material heat insulation; Condenser fan is a tube axial fan; Evaporator fan is tubular or centrifugal compressor.
Described storage cold material is the high temperature composite phase-change material, and its phase transition temperature scope is 4-10 ℃.
3, beneficial effect
The present invention compared with prior art, its remarkable advantage is: (1) during with galloping the unnecessary cold of a/c system store, when being used for auto idle speed and travelling or stop to the indoor cooling of car.When (2) the solution air conditioning for automobiles is run at high speed, the frequent start-stop of refrigeration system, magnetic clutch is frequently thrown off, is engaged, and suction pressure is low excessively, the compressor power consumption increases, degradation drawback under evaporator fin surface frosting, the refrigerating capacity.When (3) solving auto idle speed and travel or when parking start a/c system, cause a difficult problem such as engine overheat.When (4), demand cooling amount that car indoor abominable when environmental conditions is greater than the specified cooling amount of automotive air-conditioning system, can start cool storage container,, satisfy the passenger comfort requirement to increase the indoor cooling amount of car to the indoor additional cooling of car.(5) use the storage refrigeration technique, can also reduce air conditioner kludge capacity.
Four, description of drawings
Accompanying drawing is the motorcar air conditioner system architecture scheme drawing with the cold function of storage of the present invention.
Five, preferred forms
The motorcar air conditioner with the cold function of storage that the present invention makes comprises compressor 1, condenser 2, evaporator 3, storage cooling coil 4, releases cooling coil 5, storage cold material 6, liquid storage dryer 7, electromagnetic valve 8, flow regulating valve 9, air cooling heat exchanger 10, circulation pump 11, electromagnetic valve 12, flow regulating valve 13, evaporating pressure regulating valve 14, gas-liquid separator 15, suction pressure control cock 16, evaporator assembly 17, evaporator fan 18.Its principle of work is described below:
As shown in the figure, omitted liquid-sighting glass and electronic control part among the figure, the evaporator unit can as required be organized in parallel more, and the one group of evaporator unit that only draws among the figure is illustrated.In refrigeration and storage cold cycle system, charge into refrigerant (R12, R134a etc.), in releasing the cold cycle system, charge into secondary refrigerant (water or ethylene glycol solution etc.).
When automobile with normal speed travel, when the air-conditioning compressor rotating speed is in the normal range (2000-3000 rev/min), electromagnetic valve 8 is closed, electromagnetic valve 12 is opened.Refrigerant is discharged by compressor 1 compression back, flow into condenser 2 and emit heat, condensed refrigerant liquid flows in the liquid storage dryer 7 and carries out drying and storage, liquid refrigerant after being dried flows out liquid storage dryer 7, carry out the throttling step-down through electromagnetic valve 12 flow regulating valve 13 of flowing through, refrigerant after the step-down evaporates heat absorption and produces refrigeration effect in evaporator 3, refrigerant after the evaporation gasification flows in the gas-liquid separator 15 through evaporating pressure regulating valve 14 and carries out gas-liquid separation, and the refrigerant gas after the separation is inhaled into compressor 1 through suction pressure control cock 16.
When galloping, compressor rotary speed during at 3000-6000 rev/min, electromagnetic valve 8,12 is opened.Refrigerant is discharged by compressor 1 compression back, flow into condenser 2 and emit heat, condensed refrigerant liquid flows in the liquid storage dryer 7 and carries out drying and storage, liquid refrigerant after being dried is divided into two-way after flowing out liquid storage dryer 7, one the tunnel carries out the throttling step-down through electromagnetic valve 8 flow regulating valve 9 of flowing through, the evaporation in storage cooling coil 4 of refrigerant after the step-down is absorbed heat and is produced refrigeration effect, and the storage cold material 6 outside the storage cooling coil 4 is solid-state because of heat release is frozen in the cool storage container, the form of cold with latent heat of phase change and sensible heat is stored in the phase-change material, refrigerant in the storage cooling coil 4 after the evaporation gasification flows in the gas-liquid separator 15, the throttling step-down is carried out through electromagnetic valve 12 flow regulating valve 13 of flowing through in another road, refrigerant after the step-down evaporates heat absorption and produces refrigeration effect in evaporator 3, refrigerant after the evaporation gasification flows in the gas-liquid separator 15 through evaporating pressure regulating valve 14, converge in gas-liquid separator 15 with the refrigerant on last road, the refrigerant gas after the separation is inhaled into compressor 1 through suction pressure control cock 16.Because refrigerant flow is big during the compressor high-speed operation, in order to prevent that compressor from sucking liquid refrigerant, in evaporator to compressor low-pressure steam entrance, set up a gas-liquid separator 15, be used for refrigerant air-liquid and separate, prevent that compressor from producing " liquid hammer " phenomenon.
In condenser 2 outlets a liquid storage dryer 7 has been installed, be used for removing the small amount of moisture that refrigerant contains, prevent to take place " ice is stifled " phenomenon at the flow regulating valve place, unnecessary refrigerant in the storage system simultaneously is according to what of on-cycle refrigerant amount in the height variotrol of compressor rotary speed.
At evaporator outlet an evaporating pressure regulating valve 14 has been installed, has been used for controlling evaporator temperature, made evaporating temperature be stabilized in air conditioning condition (5 ℃), the frosting of device fin surface avoids evaporating.
Between evaporator and compressor suction, a suction pressure control cock 16 also is housed, its effect is the amount that the limit compression machine sucks refrigerant vapour, suck excessive refrigerant vapour when preventing compressor operating and cause the compressor overwork, magnetic clutch is skidded or drive belt slip, increase compressor power consumption, damage magnetic clutch.The adjustment pressure value maximum of suction pressure control cock is no more than 0.18MPa.When evaporating pressure was big, the aperture of flow regulating valve 13 strengthened, and make more refrigerant inflow evaporator, thereby discharge increases, and caused easily that at this moment the inhalation flow of compressor increases and overload.At this moment, can be by reducing the aperture of suction pressure control cock, the refrigerant that compressor is sucked can be not too much because of evaporating pressure increase inhalation flow, and the protection compressor does not work overloadingly.
When auto idle speed travels or stop, electromagnetic clutch for compressor is thrown off, electromagnetic valve 8,12 close, cooling cycle system is not worked, circulation pump 11 is opened, releasing the cold cycle system starts working, the secondary refrigerant of releasing in the cooling coil 5 absorbs the cold that the storage cold material 6 in the cool storage container is stored by releasing the cooling coil tube wall, send into air cooling heat exchanger 10 in the evaporator assembly 17 by circulation pump 11, secondary refrigerant in the air cooling heat exchanger 10 reaches cold the air in air cooling heat exchanger 10 outsides by exchanger tube wall, it is indoor that the cold air in air cooling heat exchanger 10 outsides is then sent into car by evaporator fan 18, the room temperature lowering needs of buying car in installments guarantee auto idle speed or still can be to the indoor cooling of car when stopping.
When automobile travels with normal speed and the indoor chilling requirement of car during greater than the specified cooling amount of automotive air-conditioning system, at this moment except the cooling cycle system normal operation (the refrigerating cycle process is identical with above-mentioned refrigerating cycle process), releasing the cold cycle system also can devote oneself to work, with the deficiency that remedies the indoor cooling amount of car (release cold cycle process with above-mentioned to release the cold cycle process identical), guarantee that the indoor passenger's of car traveling comfort is unaffected.
Claims (3)
1, a kind of motorcar air conditioner with the cold function of storage comprises compressor (1), condenser (2) and evaporator (3), and the three is connected in series; It is characterized in that it also comprises cool storage container, this cool storage container and evaporator (3) are connected in parallel; Described cool storage container comprises storage cooling coil (4), releases cooling coil (5) and storage cold material (6), store up cooling coil (4) and release cooling coil (5) and place storage cold material (6), the two ends of wherein storing up cooling coil (4) are connected with condenser (2) with compressor (1) respectively, release cooling coil (5) and form a circulation release loop between cool storage container and evaporator assembly (17).
2, motorcar air conditioner according to claim 1 is characterized in that described storage cooling coil (4) and releases cooling coil (5) employing light pipe, threaded line pipe or fin tube that shape is threaded coiler, sinuous coil or " U " shape coil pipe.
3, motorcar air conditioner according to claim 1, it is characterized in that between condenser (2) and storage cooling coil (4), also being connected with liquid storage dryer (7), electromagnetic valve (8) and flow regulating valve (9) in turn, in releasing cooling coil (5) circulation loop, also be in series with air cooling heat exchanger (10) and circulation pump (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031315038A CN1186568C (en) | 2003-05-20 | 2003-05-20 | Automotive air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031315038A CN1186568C (en) | 2003-05-20 | 2003-05-20 | Automotive air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1451916A CN1451916A (en) | 2003-10-29 |
| CN1186568C true CN1186568C (en) | 2005-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031315038A Expired - Fee Related CN1186568C (en) | 2003-05-20 | 2003-05-20 | Automotive air conditioner |
Country Status (1)
| Country | Link |
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| CN (1) | CN1186568C (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279674A (en) * | 2014-10-17 | 2015-01-14 | 中山市蓝水能源科技发展有限公司 | Water circulating device in ice-storage system |
| EP3475630A4 (en) * | 2016-06-22 | 2020-07-08 | Enermotion Inc. | Method and apparatus for hybrid power trailer refrigeration |
| CN106739938B (en) * | 2016-12-30 | 2021-12-07 | 浙江吉利控股集团有限公司 | Automobile idling air conditioner control method, automobile air conditioner system and automobile |
| CN108638785B (en) * | 2018-04-16 | 2021-01-29 | 中国科学院广州能源研究所 | Novel electric automobile heat pump air conditioning system based on phase change energy storage defrosting and control method thereof |
| CN108705918B (en) * | 2018-04-25 | 2021-10-08 | 王征伟 | Vehicle refrigerating method and vehicle refrigerating device |
| CN110793127A (en) * | 2018-08-02 | 2020-02-14 | 宁波方太厨具有限公司 | Kitchen air conditioning system |
| CN109579376A (en) * | 2018-12-20 | 2019-04-05 | 安徽江淮汽车集团股份有限公司 | A kind of truck chilling air conditioning system and its control method |
| CN112484227A (en) * | 2019-09-11 | 2021-03-12 | 广东美的白色家电技术创新中心有限公司 | Air conditioner, control method thereof, operation control device and storage medium |
| CN111791670B (en) * | 2020-07-31 | 2023-03-17 | 郑州轻工业大学 | Phase change cold accumulation automobile air conditioning system based on reverse circulation and control method thereof |
| CN112611041B (en) * | 2020-12-18 | 2023-12-12 | 青岛海信日立空调***有限公司 | Air conditioning unit and electronic expansion valve control method |
| CN113511048B (en) * | 2020-12-25 | 2023-06-06 | 北汽福田汽车股份有限公司 | Control system of fixed displacement compressor |
-
2003
- 2003-05-20 CN CNB031315038A patent/CN1186568C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1451916A (en) | 2003-10-29 |
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