CN107449130B - Air conditioning system and vehicle with same - Google Patents
Air conditioning system and vehicle with same Download PDFInfo
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- CN107449130B CN107449130B CN201710661611.4A CN201710661611A CN107449130B CN 107449130 B CN107449130 B CN 107449130B CN 201710661611 A CN201710661611 A CN 201710661611A CN 107449130 B CN107449130 B CN 107449130B
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- air
- heat exchanger
- indoor heat
- conditioning system
- air conditioning
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
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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
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H2001/00078—Assembling, manufacturing or layout details
- B60H2001/00107—Assembling, manufacturing or layout details characterised by the relative position of the heat exchangers, e.g. arrangements leading to a curved airflow
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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
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H2001/00114—Heating or cooling details
-
- 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
- B60H1/00207—Combined heating, ventilating, or cooling devices characterised by the position of the HVAC devices with respect to the passenger compartment
- B60H2001/00214—Devices in front of the passenger compartment
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses an air conditioning system and a vehicle with the same, wherein the air conditioning system comprises: an air conditioner duct; a compressor including an exhaust port and an intake port; the reversing valve comprises a first valve port to a fourth valve port; the first indoor heat exchanger and the second indoor heat exchanger are connected in series, a refrigerant branch is arranged on a refrigerant flow path between the first indoor heat exchanger and the second indoor heat exchanger, a control valve is arranged on the refrigerant branch, and the control valve is used for controlling the refrigerant to flow from the first indoor heat exchanger to the third valve port unidirectionally; an outdoor heat exchanger; a throttle element; the air door assembly is arranged in the air conditioner air duct and is positioned between the first indoor heat exchanger and the second indoor heat exchanger so as to control whether air entering the air conditioner air duct from the air inlet flows through the second indoor heat exchanger or not. The air conditioning system can improve energy efficiency and working efficiency and enhance heating and refrigerating effects.
Description
Technical Field
The invention relates to the field of refrigeration, in particular to an air conditioning system and a vehicle with the same.
Background
In the air conditioning system of the related art vehicle, the indoor heat exchanger is not fully utilized, thereby affecting the heating efficiency of the air conditioning system. Meanwhile, the refrigerating and heating effects of the air conditioning system are to be improved.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides an air conditioning system for a vehicle, which can improve energy efficiency and working efficiency and enhance heating and refrigerating effects.
The invention also provides a vehicle comprising the air conditioning system.
According to an embodiment of the present invention, an air conditioning system for a vehicle including a cab, the air conditioning system includes: the air conditioner air duct is provided with an air inlet and an air outlet, and the air outlet is opened towards the cab; a compressor including a discharge port and a suction port; the reversing valve comprises a first valve port to a fourth valve port, one end of the first valve port is connected with the air suction port, the other end of the first valve port is switched and communicated with one of the third valve port and the fourth valve port, one end of the second valve port is connected with the exhaust port, and the other end of the second valve port is switched and communicated with the other of the third valve port and the fourth valve port; the first indoor heat exchanger and the second indoor heat exchanger are connected in series, the first indoor heat exchanger and the second indoor heat exchanger are respectively arranged in the air conditioner air duct, the first indoor heat exchanger is close to the air inlet, one end of the second indoor heat exchanger is connected with the third valve port, a refrigerant branch is arranged on a refrigerant flow path between the first indoor heat exchanger and the second indoor heat exchanger, the other end of the refrigerant branch is communicated with the third valve port, a control valve is arranged on the refrigerant branch, and the control valve is used for controlling a refrigerant to flow from the first indoor heat exchanger to the third valve port unidirectionally; an outdoor heat exchanger, wherein one end of the outdoor heat exchanger is connected with the fourth valve port; the throttling element is respectively connected with the first indoor heat exchanger and the outdoor heat exchanger; and the air door assembly is arranged in the air conditioner air duct and is positioned between the first indoor heat exchanger and the second indoor heat exchanger so as to control whether the air entering the air conditioner air duct from the air inlet flows through the second indoor heat exchanger.
According to the air conditioning system for the vehicle, the first indoor heat exchanger and the second indoor heat exchanger which are connected in series are arranged, and whether the air entering the air conditioning duct from the air inlet flows through the second indoor heat exchanger or not is controlled through the air door assembly, so that the energy efficiency and the working efficiency of the air conditioning system can be improved, and the heating and refrigerating effects of the air conditioning system are enhanced.
According to some embodiments of the invention, the air conditioning system further comprises a fan disposed at the air intake.
According to some embodiments of the invention, the air conditioning system further comprises a liquid storage regenerator, a first flow path and a second flow path which exchange heat with each other are arranged in the liquid storage regenerator, two ends of the first flow path are respectively connected with the outdoor heat exchanger and the throttling element, and two ends of the second flow path are respectively connected with the air suction port and the first valve port.
Optionally, the control valve is a one-way valve.
Optionally, the throttling element is an electronic expansion valve.
Specifically, the air door component is a rotary door rotatably arranged in the air conditioner air duct so as to change the air flow direction in the air conditioner air duct.
Optionally, the reversing valve is a four-way valve.
Optionally, the air conditioning system further comprises a gas-liquid separator, and two ends of the gas-liquid separator are respectively connected with the first valve port and the air suction port.
Optionally, the air conditioning system is a heat pump unit.
According to an embodiment of the present invention, a vehicle includes: cab and air conditioning system for a vehicle as described above.
According to the vehicle provided by the embodiment of the invention, the air conditioning system provided by the embodiment of the invention is arranged, so that the energy efficiency and the working efficiency of the air conditioning system can be improved, and the heating and cooling effects of the vehicle on the cab are enhanced.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic diagram of an air conditioning system according to an embodiment of the present invention when heating;
FIG. 2 is a partial schematic view A of the air conditioning system of FIG. 1;
FIG. 3 is a schematic diagram of an air conditioning system during cooling according to an embodiment of the present invention;
fig. 4 is a partial schematic view B of the air conditioning system of fig. 3.
Reference numerals:
an air conditioning system 100;
an air conditioner air duct a; an air inlet 11; an air outlet 12; a compressor 2; an exhaust port 21; an air inlet 22; a reversing valve 3; first valve port 31; a second valve port 32; a third valve port 33; fourth port 34; a first indoor heat exchanger 4; a second indoor heat exchanger 5; a refrigerant branch b; a control valve 6; an outdoor heat exchanger 7; a throttle element 8; a damper assembly 9; a blower 10; a liquid storage regenerator 20; a first flow path 20a; a second flow path 20b; the air duct housing 30.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
An air conditioning system 100 for a vehicle according to an embodiment of the present invention, in which a vehicle (not shown) includes a cab, is described below with reference to fig. 1 to 4.
As shown in fig. 1 to 4, an air conditioning system 100 for a vehicle according to an embodiment of the present invention includes: an air conditioning duct a, a reversing valve 3, a first indoor heat exchanger 4, a second indoor heat exchanger 5, an outdoor heat exchanger 7, a throttling element 8 and an air valve assembly 9.
Specifically, the air conditioning duct a has an air inlet 11 and an air outlet 12, and the air outlet 12 is opened toward the cab. The first indoor heat exchanger 4 and the second indoor heat exchanger 5 are connected in series, the first indoor heat exchanger 4 and the second indoor heat exchanger 5 are respectively arranged in the air conditioner air duct a, and the first indoor heat exchanger 4 is close to the air inlet 11. Therefore, the air in the air-conditioning air duct a exchanges heat under the action of the first indoor heat exchanger 4 and the second indoor heat exchanger 5, and the air entering the air-conditioning air duct a through the air inlet 11 exchanges heat and then flows to the cab through the air outlet 12, so that the refrigerating and heating requirements of the cab can be realized. (unidirectional arrows in FIGS. 1-4 refer to the direction of air flow in air conditioner duct a)
The compressor 2 includes a discharge port 21 and a suction port 22. The reversing valve 3 includes a first valve port 31 to a fourth valve port 34, one end of the first valve port 31 is connected to the intake port 22, the other end of the first valve port 31 is switched on with one of the third valve port 33 and the fourth valve port 34, one end of the second valve port 32 is connected to the exhaust port 21, and the other end of the second valve port 32 is switched on with the other of the third valve port 33 and the fourth valve port 34. One end of the second indoor heat exchanger 5 is connected to the third valve port 33. A refrigerant branch b is arranged on a refrigerant flow path between the first indoor heat exchanger 4 and the second indoor heat exchanger 5, the other end of the refrigerant branch b is communicated with the third valve port 33, a control valve 6 is arranged on the refrigerant branch b, and the control valve 6 is used for controlling the refrigerant to flow from the first indoor heat exchanger 4 to the third valve port 33 unidirectionally. One end of the outdoor heat exchanger 7 is connected to the fourth valve port 34. The throttling element 8 is connected to the first indoor heat exchanger 4 and the outdoor heat exchanger 7, respectively.
Thus, it can be seen that when the air conditioning system 100 heats, the first port 31 is in communication with the fourth port 34, and the second port 32 is in communication with the third port 33. The high-temperature and high-pressure refrigerant gas in the compressor 2 is discharged from the exhaust port 21 to the compressor 2, because the control valve 6 on the refrigerant branch b is used for controlling the refrigerant to flow from the first indoor heat exchanger 4 to the third valve port 33 unidirectionally, the refrigerant sequentially flows through the second indoor heat exchanger 5 and the first indoor heat exchanger 4 after passing through the second valve port 32 and the third valve port 33, the gaseous refrigerant sequentially carries out condensation heat release in the second indoor heat exchanger 5 and the first indoor heat exchanger 4 to exchange heat, the heat-exchanged refrigerant flows to the throttling element 8, the refrigerant flows to the outdoor heat exchanger 7 after being throttled, cooled and depressurized by the throttling element 8, the liquid refrigerant carries out evaporation heat absorption in the outdoor heat exchanger 7 to exchange heat, and the heat-exchanged refrigerant flows back to the compressor 2 through the air suction port 22 after passing through the fourth valve port 34 and the first valve port 31, thereby completing the refrigerant circulation when the air conditioning system 100 heats.
Therefore, compared with the prior art, when the air conditioning system 100 of the embodiment of the invention heats, the first indoor heat exchanger 4 and the second indoor heat exchanger 5 work together, the first indoor heat exchanger 4 and the second indoor heat exchanger 5 are fully utilized, and further the heating efficiency and the heating efficiency of the air conditioning system 100 are improved, and the heating effect of the air conditioning system 100 is enhanced.
When the air conditioning system 100 is cooling, the first port 31 is in communication with the third port 33, and the second port 32 is in communication with the fourth port 34. The high-temperature and high-pressure refrigerant gas in the compressor 2 is discharged from the exhaust port 21 to the compressor 2, and flows to the outdoor heat exchanger 7 through the second valve port 32 and the fourth valve port 34, the gaseous refrigerant is condensed and released in the outdoor heat exchanger 7 to exchange heat, the heat-exchanged refrigerant flows to the throttling element 8, the throttling element 8 throttles, reduces the temperature and reduces the pressure, the refrigerant flows to the first indoor heat exchanger 4, the liquid refrigerant is evaporated and absorbed in the first indoor heat exchanger 4 to exchange heat, and the control valve 6 on the refrigerant branch b is used for controlling the refrigerant to flow from the first indoor heat exchanger 4 to the third valve port 33 unidirectionally, so that the heat-exchanged refrigerant directly flows to the reversing valve 3 through the refrigerant branch b, flows back to the compressor 2 through the third valve port 33 and the first valve port 31, and thus the refrigerant circulation when the air conditioning system 100 cools is completed.
Therefore, compared with the prior art, when the air conditioning system 100 of the embodiment of the invention is used for refrigerating, the refrigerant after heat exchange in the first indoor heat exchanger 4 can directly flow to the reversing valve 3 through the refrigerant branch b and does not flow through the second indoor heat exchanger 5, so that the flow resistance of the refrigerant can be reduced, and the refrigerating efficiency of the air conditioning system 100 is improved.
The damper assembly 9 is disposed in the air conditioning duct a between the first indoor heat exchanger 4 and the second indoor heat exchanger 5 to control whether air entering the air conditioning duct a from the air inlet 11 flows through the second indoor heat exchanger 5.
Therefore, as shown in fig. 1-2, when the air conditioning system 100 heats, the air entering the air conditioning duct a from the air inlet 11 can be controlled by the air door assembly 9 to sequentially pass through the first indoor heat exchanger 4 and the second indoor heat exchanger 5, so that the heat exchange effect of the air in the air conditioning duct a can be improved, the heating efficiency and the heating efficiency of the air conditioning system 100 can be improved, and the heating effect of the air conditioning system 100 can be enhanced.
It can be understood that the air flow direction is opposite to the refrigerant flow direction, so that the air conditioning system 100 of the embodiment of the invention fully utilizes the characteristics of the counter-flow heat exchanger when heating, thereby enhancing the heat exchange effect of the air in the air conditioning duct a and saving the heat exchange area. Meanwhile, the air conditioning system 100 of the invention is more suitable for using CO2 refrigerant, thereby being beneficial to ensuring the safety and reliability of the air conditioning system 100 and reducing the manufacturing cost of the air conditioning system 100.
As shown in fig. 3 to 4, when the air conditioning system 100 is refrigerating, the air entering the air conditioning duct a from the air inlet 11 can be controlled by the air door assembly 9 to pass through the first indoor heat exchanger 4, so that the flow resistance of the air in the air conditioning duct a is effectively reduced, the flow speed of the air in the air conditioning duct a is improved, the refrigerating efficiency of the air conditioning system 100 is further improved, and the refrigerating effect of the air conditioning system 100 is enhanced.
According to the air conditioning system 100 for the vehicle, provided by the embodiment of the invention, the first indoor heat exchanger 4 and the second indoor heat exchanger 5 which are connected in series are arranged, and whether the air entering the air conditioning duct a from the air inlet 11 flows through the second indoor heat exchanger 5 or not is controlled by the air door assembly 9, so that the energy efficiency and the working efficiency of the air conditioning system 100 can be improved, and the heating and refrigerating effects of the air conditioning system 100 are enhanced.
According to some embodiments of the present invention, the air conditioning system 100 further includes a blower 10, and the blower 10 is disposed at the air inlet 11. Thereby effectively increasing the air flow rate in the air-conditioning duct a, improving the air flow rate in the air-conditioning duct a, and further improving the working efficiency of the air-conditioning system 100.
According to some embodiments of the present invention, the air conditioning system 100 further includes a liquid storage regenerator 20, wherein a first flow path 20a and a second flow path 20b for exchanging heat with each other are provided in the liquid storage regenerator 20, two ends of the first flow path 20a are respectively connected to the outdoor heat exchanger 7 and the throttling element 8, and two ends of the second flow path 20b are respectively connected to the air suction port 22 and the first valve port 31. Accordingly, the refrigerant in the first flow path 20a and the second flow path 20b can exchange heat, which is beneficial to improving the energy efficiency of the air conditioning system 100 and improving the reliability of the air conditioning system 100.
When the air conditioning system 100 heats, the refrigerant throttled, cooled and depressurized by the throttling element 8 flows to the outdoor heat exchanger 7 through the first flow path 20a, and the refrigerant heat-exchanged in the outdoor heat exchanger 7 flows through the second flow path 20b after passing through the fourth valve port 34 and the first valve port 31, and finally flows back to the compressor 2 through the air suction port 22. The refrigerant flowing through the first and second flow paths 20a and 20b is low-temperature refrigerant because the refrigerant is throttled, cooled and depressurized by the throttle element 8, and the refrigerant flowing through the first and second flow paths 20a and 20b is low-temperature refrigerant. As can be seen, the liquid storage regenerator 20 has no regenerative function when the air conditioning system 100 heats.
When the air conditioning system 100 is refrigerating, the refrigerant after heat exchange in the outdoor heat exchanger 7 flows to the throttling element 8 after passing through the first flow path 20a, the refrigerant after throttling, cooling and depressurization by the throttling element 8 flows to the first indoor heat exchanger 4 for heat exchange, and the refrigerant after heat exchange flows to the second flow path 20b after passing through the refrigerant branch b, the third valve port 33 and the first valve port 31, and finally flows back to the compressor 2 through the air suction port 22. As is clear from this, the high-temperature and high-pressure refrigerant discharged from the compressor 2 exchanges heat in the outdoor heat exchanger 7 and then directly flows into the first flow path 20a, and the refrigerant flowing through the second flow path 20b is the refrigerant throttled, cooled and depressurized by the throttle element 8. Therefore, when the air conditioning system 100 is refrigerating, the liquid storage regenerator 20 has a heat regeneration function, and the high-temperature refrigerant in the first flow path 20a and the low-temperature refrigerant in the second flow path 20b exchange heat when flowing through the liquid storage regenerator 20, thereby being beneficial to improving the energy efficiency of the air conditioning system 100.
Optionally, the control valve 6 is a one-way valve. The control valve 6 is simple in structure, and the reliability of the control valve 6 in controlling the refrigerant to flow unidirectionally from the first indoor heat exchanger 4 to the third valve port 33 can be ensured.
Optionally, an on-off valve (not shown) is provided between the refrigerant branch b and the second indoor heat exchanger 5. So that the switching valve is opened to turn on the second indoor heat exchanger 5 and the first indoor heat exchanger 4 when the air conditioning system 100 heats. When the air conditioning system 100 is refrigerating, the switch valve is closed, so that the refrigerant can be further ensured to flow to the third valve opening 33 through the refrigerant branch b when the air conditioning system 100 is refrigerating, and the reliability of the air conditioning system 100 is further improved.
Alternatively, the throttling element 8 is an electronic expansion valve. Therefore, the throttling, cooling and pressure reducing effects of the throttling element 8 on the refrigerant can be ensured, and the energy efficiency of the air conditioning system 100 can be improved.
Specifically, the damper assembly 9 is a rotary door rotatably provided in the air-conditioning duct a to change the flow direction of air in the air-conditioning duct a. Therefore, the air door assembly 9 has a simple structure, and the reliability of the air door assembly 9 for changing the air flow direction in the air conditioner air duct a can be ensured.
Alternatively, the reversing valve 3 is a four-way valve. Thereby enabling the reliability of the reversing valve 3 to be ensured.
Optionally, the air conditioning system 100 further includes a gas-liquid separator (not shown), and both ends of the gas-liquid separator are connected to the first valve port 31 and the air suction port 22, respectively. So that the phenomenon of liquid impact of the compressor 2 can be effectively avoided, which is beneficial to prolonging the service life of the air conditioning system 100.
Alternatively, air conditioning system 100 is a heat pump unit. Thereby miniaturizing the overall structure of the air conditioning system 100, being more suitable for users having both heating and cooling requirements, while enabling the air conditioning system 100 to have high energy efficiency, and being capable of reducing the running cost of the air conditioning system 100.
According to an embodiment of the present invention, a vehicle includes: a cab and the air conditioning system 100 for a vehicle described above.
According to the vehicle of the embodiment of the invention, by arranging the air conditioning system 100 according to the embodiment of the invention, the energy efficiency and the working efficiency of the air conditioning system 100 can be improved, and the heating and cooling effects of the vehicle on the cab can be enhanced.
Specifically, the vehicle includes a duct housing 30, with an air conditioning duct a defined within the duct housing 30.
The structure of an air conditioning system 100 for a vehicle according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 4. It should be noted that the following description is only exemplary, and it is obvious that after reading the following technical solutions of the present invention, one skilled in the art may combine or replace or modify some technical solutions or some technical features thereof, which also falls within the scope of protection claimed by the present invention.
As shown in fig. 1-4, an air conditioning system 100 for a vehicle in accordance with an embodiment of the present invention. The vehicle includes a cab and a duct housing 30, and the air conditioning system 100 is a heat pump unit.
Specifically, the air conditioning system 100 includes: the air conditioner comprises an air conditioner air duct a, a reversing valve 3, a first indoor heat exchanger 4, a second indoor heat exchanger 5, an outdoor heat exchanger 7, a throttling element 8, a throttle assembly 9, a fan 10 and a liquid storage regenerator 20.
An air conditioning duct a is defined in the duct housing 30, the air conditioning duct a has an air inlet 11 and an air outlet 12, the air outlet 12 is opened toward the cab, and the fan 10 is disposed at the air inlet 11. The first indoor heat exchanger 4 and the second indoor heat exchanger 5 are connected in series, the first indoor heat exchanger 4 and the second indoor heat exchanger 5 are respectively arranged in the air conditioner air duct a, and the first indoor heat exchanger 4 is close to the air inlet 11.
The damper assembly 9 is a rotary door rotatably provided in the air conditioning duct a, and the damper assembly 9 is located between the first indoor heat exchanger 4 and the second indoor heat exchanger 5 to control whether air introduced into the air conditioning duct a from the air inlet 11 flows through the second indoor heat exchanger 5.
The compressor 2 includes a discharge port 21 and a suction port 22. The reversing valve 3 is a four-way valve, the reversing valve 3 comprises a first valve port 31 to a fourth valve port 34, one end of the first valve port 31 is connected with the air suction port 22, the other end of the first valve port 31 is switched and communicated with one of a third valve port 33 and the fourth valve port 34, one end of the second valve port 32 is connected with the air exhaust port 21, the other end of the second valve port 32 is switched and communicated with the other of the third valve port 33 and the fourth valve port 34, one end of the second indoor heat exchanger 5 is connected with the third valve port 33, and one end of the outdoor heat exchanger 7 is connected with the fourth valve port 34.
A refrigerant branch b is arranged on a refrigerant flow path between the first indoor heat exchanger 4 and the second indoor heat exchanger 5, the other end of the refrigerant branch b is communicated with the third valve port 33, a control valve 6 is arranged on the refrigerant branch b, and the control valve 6 is used for controlling the refrigerant to flow from the first indoor heat exchanger 4 to the third valve port 33 unidirectionally. Wherein the control valve 6 is a one-way valve.
The throttling element 8 is an electronic expansion valve, and the throttling element 8 is respectively connected with the first indoor heat exchanger 4 and the outdoor heat exchanger 7. The liquid storage regenerator 20 is internally provided with a first flow path 20a and a second flow path 20b which exchange heat with each other, two ends of the first flow path 20a are respectively connected with the outdoor heat exchanger 7 and the throttling element 8, and two ends of the second flow path 20b are respectively connected with the air suction port 22 and the first valve port 31.
Other configurations and operations of the air conditioning system 100 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. An air conditioning system for a vehicle, the vehicle including a cab, the air conditioning system comprising:
the air conditioner air duct is provided with an air inlet and an air outlet, and the air outlet is opened towards the cab;
a compressor including a discharge port and a suction port;
the reversing valve comprises a first valve port to a fourth valve port, one end of the first valve port is connected with the air suction port, the other end of the first valve port is switched and communicated with one of the third valve port and the fourth valve port, one end of the second valve port is connected with the exhaust port, and the other end of the second valve port is switched and communicated with the other of the third valve port and the fourth valve port;
the first indoor heat exchanger and the second indoor heat exchanger are connected in series, the first indoor heat exchanger and the second indoor heat exchanger are respectively arranged in the air conditioner air duct, the first indoor heat exchanger is close to the air inlet, one end of the second indoor heat exchanger is connected with the third valve port, a refrigerant branch is arranged on a refrigerant flow path between the first indoor heat exchanger and the second indoor heat exchanger, the other end of the refrigerant branch is communicated with the third valve port, a control valve is arranged on the refrigerant branch, and the control valve is used for controlling a refrigerant to flow from the first indoor heat exchanger to the third valve port unidirectionally;
an outdoor heat exchanger, wherein one end of the outdoor heat exchanger is connected with the fourth valve port;
the throttling element is respectively connected with the first indoor heat exchanger and the outdoor heat exchanger;
the air door assembly is arranged in the air conditioner air duct and is positioned between the first indoor heat exchanger and the second indoor heat exchanger so as to control whether the air entering the air conditioner air duct from the air inlet flows through the second indoor heat exchanger or not;
when heating, the air door assembly controls the air entering the air conditioner air duct to flow through the second indoor heat exchanger;
during refrigeration, the air door assembly controls air entering the air conditioner air duct not to flow through the second indoor heat exchanger.
2. The air conditioning system for a vehicle of claim 1, further comprising a blower disposed at the air intake.
3. The air conditioning system for a vehicle according to claim 1, further comprising a liquid storage regenerator, wherein a first flow path and a second flow path which exchange heat with each other are provided in the liquid storage regenerator, both ends of the first flow path are respectively connected to the outdoor heat exchanger and the throttle element, and both ends of the second flow path are respectively connected to the air suction port and the first valve port.
4. The air conditioning system for a vehicle of claim 1, wherein the control valve is a one-way valve.
5. The air conditioning system for a vehicle of claim 1, wherein the throttling element is an electronic expansion valve.
6. The air conditioning system for a vehicle of claim 1, wherein the damper assembly is a rotary door rotatably disposed within the air conditioning duct to change the flow direction of air within the air conditioning duct.
7. The air conditioning system for a vehicle of claim 1, wherein the reversing valve is a four-way valve.
8. An air conditioning system for a vehicle according to claim 1, further comprising a gas-liquid separator, both ends of which are connected to the first valve port and the suction port, respectively.
9. The air conditioning system for a vehicle of claim 1, wherein the air conditioning system is a heat pump unit.
10. A vehicle, characterized by comprising: cab and an air conditioning system for a vehicle according to any one of claims 1-9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710661611.4A CN107449130B (en) | 2017-08-04 | 2017-08-04 | Air conditioning system and vehicle with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710661611.4A CN107449130B (en) | 2017-08-04 | 2017-08-04 | Air conditioning system and vehicle with same |
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| Publication Number | Publication Date |
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| CN107449130A CN107449130A (en) | 2017-12-08 |
| CN107449130B true CN107449130B (en) | 2023-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710661611.4A Active CN107449130B (en) | 2017-08-04 | 2017-08-04 | Air conditioning system and vehicle with same |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018207369A1 (en) * | 2018-05-11 | 2019-11-14 | Mahle International Gmbh | Air conditioning system with a plurality of temperature control valves arranged downstream of a heating device |
| CN114877428B (en) * | 2021-02-05 | 2023-09-19 | 广东美的白色家电技术创新中心有限公司 | Multi-position reversing valve, air conditioning system and air conditioner |
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|---|---|
| CN107449130A (en) | 2017-12-08 |
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