CN107499089A - A kind of electric automobile heat-pump air-conditioning system and its method of work - Google Patents
A kind of electric automobile heat-pump air-conditioning system and its method of work Download PDFInfo
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- CN107499089A CN107499089A CN201710727076.8A CN201710727076A CN107499089A CN 107499089 A CN107499089 A CN 107499089A CN 201710727076 A CN201710727076 A CN 201710727076A CN 107499089 A CN107499089 A CN 107499089A
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- Prior art keywords
- valve
- condenser
- gas
- external
- heat
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Classifications
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- 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
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive 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
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H2001/00114—Heating or cooling details
- B60H2001/00121—More than one heat exchanger in parallel
-
- 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
- B60H2001/00949—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 additional heating/cooling sources, e.g. second evaporator
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The present invention relates to a kind of electric automobile heat-pump air-conditioning system and its method of work, and it includes：HVAC internal exchangers system, dual chamber external heat exchanger system, gas-liquid separator, motor compressor, two by-passing valves, two electric expansion valves, two magnetic valves, pipelines；HAVC internal exchangers system includes two internal exchanger condensers and evaporator and an air blower；Dual chamber external heat exchanger system includes the two external heat exchanger condensers and evaporator being arranged in parallel, respectively by its switch of two magnetic valves and control.
Description
Technical field
The present invention relates to a kind of technology of field of automobile air conditioner, specifically a kind of electric automobile heat-pump air-conditioning system and
Its method of work.
Background technology
At present, three heat exchanger structures being used for electric automobile heat-pump air-conditioning system more, its kind of refrigeration cycle form is shown in Fig. 1,
When refrigeration mode is run, the gas (in figure shown in dotted line) of HTHP enters No. 1 heat exchanger after being come out from compressor outlet, this
When the heat exchanger air door close, outwards blowing, it is corresponding open the part by-passing valve, after flowing through No. 1 heat exchanger
High temperature and high pressure gas flowed through from by-passing valve, now the electric expansion valve is bypassed, enters No. 3 heat exchangers afterwards, now outdoor is changed
Hot device is used as condenser, and the electric expansion valve that the high-pressure sub-cooled liquid come out from No. 3 heat exchangers flows into herein is throttled
Decompression, corresponding by-passing valve closing, the low pressure two-phase fluid (shown in solid in figure) after throttling are again introduced into No. 2 heat exchange herein
Device, refrigeration is evaporated, the air quantity of blower fan is brought cold into interior and cooled, the low area overheat gas stream come out from evaporator
Compressor is returned to after gas-liquid separator, completes a circulation.
Heating circulation form is shown in Fig. 2, and when heating mode is run, the gas (in figure shown in dotted line) of HTHP is from compressor
Enter No. 1 heat exchanger behind outlet out, now the air door of the heat exchanger is opened, and outwards blowing heats up to in-car, the heat exchange
Device uses as condenser, the corresponding by-passing valve for closing the part, flows through the subcooled liquid after No. 1 heat exchanger and flows through herein
Electric expansion valve, the low pressure two-phase fluid (in figure shown in solid) that decompression is throttled by the electric expansion valve changes into No. 4
Hot device, now outdoor heat exchanger uses as evaporator, while opens corresponding by-passing valve herein, is come out from No. 4 heat exchangers
Low area overheat fluid not through herein electric expansion valve carry out reducing pressure by regulating flow, but from by-passing valve pass through after, flow through gas-liquid
Separator returns compressor, completes a circulation.No. 2 heat exchangers are bypassed during this, pass through without any fluid.
The flow of currently used outdoor heat exchanger is 4, and upper entering and lower leaving, heat exchange amount is larger, and refrigerant pressure drop is smaller, is
System better performances；But in a heating mode, such a design can cause evaporator pressure drop larger, flow system flow very little, evaporating temperature
Relatively low, heat exchange amount is low, and systematic function is poor.Therefore it is to influence freezing with the decay of the heat exchanger performance after heating mode switching
The principal element of its heat exchange amount.Due to for the outdoor heat exchanger in three traditional heat exchanger systems, evaporation can not be taken into account simultaneously
With its performance under condensation mode, therefore inconvenience it is optimized.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, there is provided proposes a kind of electric automobile heat-pump air-conditioning system
System, it is specially the heat pump type air conditioning system with dual chamber external heat exchanger, under refrigeration mode still by the use of original outdoor heat exchanger as
Condenser, using the outdoor heat exchanger of new flow scheme design in parallel therewith under heating mode, the evaporator as system.And incite somebody to action
Two heat exchangers compose in parallel an external heat-exchanging system, when freezing with being switched under heating mode, respectively using difference
Heat exchanger so that the problem of whole heat pump avoids performance degradation.Two outdoor heat exchangers are respectively by different electromagnetism
Valve controls, and when heat pump is in different mode of operations, opens corresponding valve respectively and controls its heat exchanger to work, and another
Individual heat exchanger is then closed, so so that the problem of whole heat pump avoids performance degradation, is improved and is changed
Hot property, its operating efficiency is improved, adds security of system.
To achieve these goals, the technical solution adopted by the present invention is：
A kind of electric automobile heat-pump air-conditioning system, it is characterised in that including：Changed outside HVAC internal exchangers system, dual chamber
Hot device system, gas-liquid separator, motor compressor, two by-passing valves, two electric expansion valves, two magnetic valves, pipelines；It is described
HAVC internal exchangers system includes two internal exchanger condensers and evaporator and an air blower；Changed outside the dual chamber
Hot device system includes the two external heat exchanger condensers and evaporator being arranged in parallel, and by two magnetic valves and control, it is opened respectively
Close.
Further, the import of the evaporator of the dual chamber external heat exchanger system is arranged on condenser bottom, and outlet is set
In condenser overhead, cancel super cooled sect.
Technique effect
In the present invention, it can cancel super cooled sect according to the flow feature of refrigerant evaporation, external boiler import set
In external condenser bottom, outlet is arranged at the top of external condenser.Because flow velocity make it that greatly the coefficient of heat transfer is big, and flow is at most
Larger pressure drop is caused, a Best Point is found in both relations and make it that heat exchanger performance is optimal, therefore makes first pass flat
Pipe number is less, while flow sum is reduced to 2, reduces the pressure drop of evaporator.Dividing plate can suitably be increased in header, carried
Its high liquid separation effect.
Compared with prior art, the present invention is combined using the dual chamber external heat exchanger being arranged in parallel with traditional three heat exchangers
Heat pump type air conditioning system, different outdoor heat exchangers is used under different working condition so that whole heat pump avoids performance and declined
The problem of subtracting, its operating efficiency is improved, improves heat exchange property.
Brief description of the drawings
Fig. 1 is traditional three heat exchanger system schematic diagrames one (refrigeration mode)；
Fig. 2 is traditional three heat exchanger system schematic diagrames two (heating mode)；
Fig. 3 is schematic diagram one (refrigeration mode) of the present invention；
Fig. 4 is schematic diagram two (heating mode) of the present invention；
Fig. 5 is condenser circulating water pass schematic diagram；
Fig. 6 is evaporator scheme schematic diagram；
Fig. 7 is dual chamber external heat exchanger system schematic；
In figure：1 is internal condensation device, and 2 be inner evaporator, and 3 be external condenser, and 4 be external boiler, and 5 and 6 distinguish
It is respectively the first electric expansion valve and the second electric expansion valve for the first by-passing valve and the second by-passing valve, 7 and 8,9 and 10 are respectively
First magnetic valve and second solenoid valve, 11 be gas-liquid separator, and 12 be motor compressor, and 13 be air blower.
Embodiment
The invention provides a kind of electric automobile heat-pump air-conditioning system, embodiments of the invention are elaborated below,
The present embodiment is implemented under premised on technical solution of the present invention, gives detailed embodiment and specifically operated
Journey, but protection scope of the present invention is not limited to following embodiments.
As shown in figure 3, electric automobile heat-pump air-conditioning system includes：HVAC internal exchangers system, dual chamber external heat exchanger system
System, gas-liquid separator 11, motor compressor 12, the first by-passing valve 5 and the second by-passing valve 6, the first electric expansion valve 7 and the second electricity
Sub- expansion valve 8, the first magnetic valve 9 and second solenoid valve 10, pipeline and other accessories.
HAVC internal exchangers system includes two internal exchanger condensers 1 and evaporator 2 and an air blower.It is double
Outdoor heat exchanger system includes the two external heat exchanger condensers 3 and evaporator 4 being arranged in parallel, respectively by the first magnetic valve 9
Its switch is controlled with second solenoid valve 10, the import of evaporator 4 is arranged on the bottom of condenser 3, and outlet is arranged on condenser 3 and pushed up
Portion, cancel super cooled sect, while it is less to reduce first pass flat tube number so that flow sum is reduced, and reduces evaporator
Pressure drop.
The closed electromagnetic valve on the tunnel of external boiler 4 one in dual chamber external heat exchanger system, the magnetic valve on the tunnel of external condenser 3 one
Open, now condenser is operated, when the novel electric vehicle air conditioner heat pump system is in refrigeration mode work, such as Fig. 3 institutes
Show.During refrigeration, the gas (in figure shown in dotted line) of HTHP enters internal condensation device 1 behind the outlet out of motor compressor 1,
The air door of internal condensation device 1 is closed, and is used as pipeline, corresponding the first by-passing valve 5 for opening the part, flows through internal condensation
High temperature and high pressure gas after device 1 flow through from the first by-passing valve 5, and first electric expansion valve 7 is bypassed, afterwards into external condenser
3, the second electric expansion valve 8 that the high-pressure sub-cooled liquid come out from external condenser 3 flows into herein carries out reducing pressure by regulating flow, right herein
The second by-passing valve 6 answered is closed, and the low pressure two-phase fluid (shown in solid in figure) after throttling is again introduced into inner evaporator 2, enters
Row sweat cooling, the air quantity of blower fan are brought cold into interior and cooled, the low area overheat gas stream come out from inner evaporator 2
Compressor is returned to after gas-liquid separator 11, completes a kind of refrigeration cycle；
When the novel electric vehicle air conditioner heat pump system is in heating mode work, as shown in figure 4, during heating, high temperature
The gas (in figure shown in dotted line) of high pressure enters internal condensation device 1 behind the outlet out of motor compressor 1, internal condensation device 1
Air door is opened, and outwards blowing heats up to in-car, corresponding the first by-passing valve 5 for closing the part, flows through internal condensation
Subcooled liquid after device 1 flows through the first electric expansion valve 7 herein, and the low of decompression is throttled by first electric expansion valve 7
Pressure two-phase fluid is (shown in solid in figure) to enter external boiler 4, while opens corresponding second by-passing valve 6 herein, from outside
The low area overheat fluid that evaporator 4 comes out carries out reducing pressure by regulating flow not through the second electric expansion valve 8 herein, but from second
After by-passing valve 6 passes through, flow through gas-liquid separator 11 and return motor compressor 1, complete a heating circulation.
In the present invention, it can cancel super cooled sect according to the flow feature of refrigerant evaporation, external boiler import set
In external condenser bottom, outlet is arranged at the top of external condenser.Because flow velocity make it that greatly the coefficient of heat transfer is big, and flow is at most
Larger pressure drop is caused, a Best Point is found in both relations and make it that heat exchanger performance is optimal, therefore makes first pass flat
Pipe number is less, while flow sum is reduced to 2, reduces the pressure drop of evaporator.Dividing plate can suitably be increased in header, carried
Its high liquid separation effect.
Above-mentioned embodiment is the description of the invention, is not limitation of the invention, any to simple transformation of the present invention
Structure afterwards belongs to protection scope of the present invention.
Claims (3)
- A kind of 1. electric automobile heat-pump air-conditioning system, it is characterised in that including：HVAC internal exchangers system, double outdoor heat exchanges Device system, gas-liquid separator (11), motor compressor (12), the first by-passing valve (5) and the second by-passing valve (6), the first electronics are swollen Swollen valve (7) and the second electric expansion valve (8), the first magnetic valve (9) and second solenoid valve (10), pipeline；Changed inside the HAVC Hot device system includes two internal exchangers：Internal condensation device (1) and inner evaporator (2), and an air blower (13)；Institute State two external heat exchangers that dual chamber external heat exchanger system includes being arranged in parallel：External condenser (3) and external boiler (4), Its switch is controlled by the first magnetic valve (9) and second solenoid valve (10) respectively.
- 2. electric automobile heat-pump air-conditioning system as claimed in claim 1, under refrigeration mode, external condenser (3) work is described External condenser (3) is 4 flows, and upper entering and lower leaving is big containing super cooled sect, heat exchange amount；Heating mode lower outer portion evaporator (4) work Make, the evaporator (4) be 2 flows, bottom in and top out, and import is arranged on condenser (3) bottom, exports and is arranged on condenser (3) Top.
- 3. a kind of method of work to be exchanged heat using electric automobile heat-pump air-conditioning system as claimed in claim 1, its feature It is：(1) when freezing, the gas of HTHP enters internal condensation device (1) behind motor compressor (1) outlet out, internal cold Condenser (1) air door is closed, and is used as pipeline, corresponding the first by-passing valve (5) for opening the part, flows through internal condensation device (1) high temperature and high pressure gas after flow through from the first by-passing valve (5), and first electric expansion valve (7) is bypassed, and rear entrance is outside cold Condenser (3), the second electric expansion valve (8) that the high-pressure sub-cooled liquid come out from external condenser (3) flows into herein are throttled Decompression, corresponding second by-passing valve (6) closing, the low pressure two-phase fluid after throttling are again introduced into inner evaporator (2), entered herein Row sweat cooling, the air quantity of blower fan are brought cold into interior and cooled, the low area overheat gas come out from inner evaporator (2) Compressor is returned to after flowing through gas-liquid separator (11), completes a kind of refrigeration cycle；(2) when heating, the gas of HTHP enters internal condensation device (1) behind motor compressor (1) outlet out, internal cold The air door of condenser (1) is opened, and outwards blowing heats up to in-car, corresponding the first by-passing valve (5) for closing the part, makes stream Subcooled liquid after internal condensation device (1) flows through the first electric expansion valve (7) herein, by first electric expansion valve (7) the low pressure two-phase fluid for being throttled decompression enters external boiler (4), while opens corresponding second by-passing valve (6) herein, Reducing pressure by regulating flow is carried out from the low area overheat fluid that external boiler (4) comes out not through the second electric expansion valve (8) herein, But from after the second by-passing valve (6) passes through, flow through gas-liquid separator (11) and return motor compressor (1), complete a heating Circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710727076.8A CN107499089A (en) | 2017-08-23 | 2017-08-23 | A kind of electric automobile heat-pump air-conditioning system and its method of work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710727076.8A CN107499089A (en) | 2017-08-23 | 2017-08-23 | A kind of electric automobile heat-pump air-conditioning system and its method of work |
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| Publication Number | Publication Date |
|---|---|
| CN107499089A true CN107499089A (en) | 2017-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710727076.8A Pending CN107499089A (en) | 2017-08-23 | 2017-08-23 | A kind of electric automobile heat-pump air-conditioning system and its method of work |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240868A (en) * | 2018-03-15 | 2018-07-03 | 江苏中关村科技产业园节能环保研究有限公司 | A kind of measurement of vehicle occupant compartment solar radiation thermic load and scaling method |
| CN109515114A (en) * | 2018-11-27 | 2019-03-26 | 上海交通大学 | A kind of automobile heat pump air-conditioning system |
| CN110254169A (en) * | 2019-06-26 | 2019-09-20 | 曼德电子电器有限公司 | Air-conditioning system for vehicle and the vehicle with it |
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| CN101598469A (en) * | 2009-07-03 | 2009-12-09 | 奇瑞汽车股份有限公司 | Electric automobile air-conditioning system |
| CN102958724A (en) * | 2010-11-01 | 2013-03-06 | 三菱重工业株式会社 | Heat-pump vehicular air conditioner and defrosting method thereof |
| JP2014088093A (en) * | 2012-10-30 | 2014-05-15 | Mitsubishi Heavy Ind Ltd | Vehicle air conditioner and operating method thereof |
| CN106602166A (en) * | 2015-10-19 | 2017-04-26 | 现代自动车株式会社 | Battery cooling system for a vehicle |
| CN106885392A (en) * | 2017-02-28 | 2017-06-23 | 重庆长安汽车股份有限公司 | Cold-heat pump association system and its refrigerating and heating method in a kind of hybrid vehicle |
-
2017
- 2017-08-23 CN CN201710727076.8A patent/CN107499089A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598469A (en) * | 2009-07-03 | 2009-12-09 | 奇瑞汽车股份有限公司 | Electric automobile air-conditioning system |
| CN102958724A (en) * | 2010-11-01 | 2013-03-06 | 三菱重工业株式会社 | Heat-pump vehicular air conditioner and defrosting method thereof |
| JP2014088093A (en) * | 2012-10-30 | 2014-05-15 | Mitsubishi Heavy Ind Ltd | Vehicle air conditioner and operating method thereof |
| CN106602166A (en) * | 2015-10-19 | 2017-04-26 | 现代自动车株式会社 | Battery cooling system for a vehicle |
| CN106885392A (en) * | 2017-02-28 | 2017-06-23 | 重庆长安汽车股份有限公司 | Cold-heat pump association system and its refrigerating and heating method in a kind of hybrid vehicle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240868A (en) * | 2018-03-15 | 2018-07-03 | 江苏中关村科技产业园节能环保研究有限公司 | A kind of measurement of vehicle occupant compartment solar radiation thermic load and scaling method |
| CN108240868B (en) * | 2018-03-15 | 2020-03-31 | 江苏中关村科技产业园节能环保研究有限公司 | Method for measuring and calibrating solar radiation heat load of automobile passenger compartment |
| CN109515114A (en) * | 2018-11-27 | 2019-03-26 | 上海交通大学 | A kind of automobile heat pump air-conditioning system |
| CN110254169A (en) * | 2019-06-26 | 2019-09-20 | 曼德电子电器有限公司 | Air-conditioning system for vehicle and the vehicle with it |
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Application publication date: 20171222 |
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