CN114290875A - Vehicle air conditioner and control method thereof - Google Patents
Vehicle air conditioner and control method thereof Download PDFInfo
- Publication number
- CN114290875A CN114290875A CN202210044087.7A CN202210044087A CN114290875A CN 114290875 A CN114290875 A CN 114290875A CN 202210044087 A CN202210044087 A CN 202210044087A CN 114290875 A CN114290875 A CN 114290875A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- vehicle
- pipeline
- heat
- air conditioner
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 119
- 239000003507 refrigerant Substances 0.000 claims abstract description 82
- 238000010438 heat treatment Methods 0.000 claims description 43
- 238000005057 refrigeration Methods 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 20
- 239000002826 coolant Substances 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 3
- 241001669679 Eleotris Species 0.000 claims description 2
- 238000004378 air conditioning Methods 0.000 description 11
- 238000004891 communication Methods 0.000 description 9
- 238000001704 evaporation Methods 0.000 description 9
- 230000008020 evaporation Effects 0.000 description 9
- 239000007788 liquid Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000005265 energy consumption Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention provides a vehicle air conditioner and a control method thereof, the vehicle air conditioner includes: the compressor, outer heat exchanger of car, heat exchanger in the car, first throttling arrangement, water receiving portion and heat transfer terminal, the compressor, outer heat exchanger of car, heat exchanger in first throttling arrangement and the car can connect and form main refrigerant circulation circuit, the comdenstion water that heat exchanger produced in the car can be held to the water receiving portion, vehicle air conditioner still includes first pipeline, the one end of first pipeline and the inside intercommunication of water receiving portion, other end intercommunication heat transfer terminal is in order to refrigerate or heat the user, water receiving portion is for the closed container with the relative confined outside the car, the inside water of water receiving portion does not communicate with the car external environment. The invention effectively isolates heat exchange between external air and condensed water, does not generate heat exchange influence on inlet air or outlet air of the heat exchanger in the vehicle, reduces ineffective heat exchange with the environment outside the vehicle, does not increase the load in the vehicle, and effectively improves performance and energy efficiency.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly relates to a vehicle air conditioner and a control method thereof.
Background
Its compact structure of overhead integral type vehicle air conditioner that exists on the existing market, the water drainage tank and the outer environment of car of evaporation intracavity are direct to be linked together, the evaporation chamber will form the negative pressure chamber when interior fan is opened, the outer air of car can get into the evaporation chamber through the water drainage tank and converge the back through the return air of evaporimeter and blow off through the evaporation fan from inboard air outlet together, will make the air-out temperature rise during air conditioner refrigeration, will make the air-out temperature reduce during heating, the car internal load has been increased, the performance and the efficiency are reduced, reduce user experience degree. Meanwhile, the condensed water is directly discharged, which causes cold energy waste.
The existing vehicle air conditioner also has the factors of large space, large window, limited electric quantity of a storage battery, limited space size, long air supply distance and the like, so that a user feels temperature difference.
Because the vehicle air conditioner in the prior art has the technical problems that the air outlet temperature will be increased when the air conditioner is used for refrigeration and the air outlet temperature will be reduced when the air conditioner is used for heating due to the fact that the drainage channel in the evaporation cavity is directly communicated with the environment outside the vehicle, the load in the vehicle is increased, the performance and the energy efficiency are reduced, and the like, the vehicle air conditioner and the control method thereof are researched and designed.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects that the air conditioner in the prior art can raise the air outlet temperature during refrigeration and lower the air outlet temperature during heating due to the fact that the drainage channel in the evaporation cavity is directly communicated with the environment outside the vehicle, so that the load in the vehicle is increased, and the performance and the energy efficiency are reduced, thereby providing the vehicle air conditioner and the control method thereof.
The present invention provides a vehicle air conditioner, comprising:
the vehicle air conditioner comprises a compressor, a vehicle exterior heat exchanger, a vehicle interior heat exchanger, a first throttling device, a water receiving portion and a heat exchange terminal, wherein the compressor is used for connecting the vehicle exterior heat exchanger, the first throttling device and the vehicle interior heat exchanger to form a main refrigerant circulation loop, the water receiving portion can receive condensed water generated by the vehicle interior heat exchanger, the vehicle air conditioner further comprises a first pipeline, one end of the first pipeline is communicated with the inside of the water receiving portion and the other end of the first pipeline is communicated with the heat exchange terminal to refrigerate or heat a user, the water receiving portion is a closed container which is relatively closed with the outside of the vehicle, and water inside the water receiving portion is not communicated with the environment outside the vehicle.
In some embodiments, the system further comprises a fourth heat exchanger, a second pipeline and a third pipeline, wherein one end of the second pipeline is communicated with one end of the on-board heat exchanger, the other end of the second pipeline is communicated to the first throttling device and a pipe section between the first throttling device and the on-board heat exchanger, the fourth heat exchanger is arranged on the second pipeline, and a second throttling device is further arranged on the second pipeline;
one end of the third pipeline penetrates through the fourth heat exchanger, the other end of the third pipeline penetrates through the heat exchange terminal, and secondary refrigerant flowing in the third pipeline can exchange heat with refrigerant flowing in the second pipeline at the fourth heat exchanger.
In some embodiments, the heat exchange device further comprises a container, and the other end of the first pipeline passes through the heat exchange terminal and is communicated with the interior of the container.
In some embodiments, the other end of the third pipeline passes through the heat exchange terminal and then communicates with the inside of the container, one end of the third pipeline passes through the fourth heat exchanger and then communicates with the inside of the container, and a pump is arranged on the third pipeline.
In some embodiments, the container is further provided with a drain pipe in communication; and/or the presence of a gas in the gas,
the fourth heat exchanger is a plate heat exchanger; and/or the heat exchange terminal is a heat exchange pad which can be placed on a sleeping berth or a seat.
In some embodiments, the coolant is water, the container is a water tank, and the pump is a water pump.
In some embodiments, a fourth temperature sensor is arranged at one end of the fourth heat exchanger connected with the second pipeline, a second temperature sensor is arranged at the other end of the fourth heat exchanger connected with the second pipeline, a third temperature sensor is arranged at one end of the fourth heat exchanger connected with the third pipeline, and a first temperature sensor is arranged at the other end of the fourth heat exchanger connected with the third pipeline.
In some embodiments, a four-way valve is further included, the four-way valve including a first end in communication with the discharge end of the compressor, a second end in communication with the exterior heat exchanger, a third end in communication with the suction end of the compressor, and a fourth end in communication with the interior heat exchanger.
In some embodiments, the vehicle air conditioner is a parking air conditioner.
The present invention also provides a control method of a vehicle air conditioner as set forth in any one of the above, comprising:
a detection step, detecting an operation mode and an outdoor environment temperature T;
a judging step of judging whether the operation mode is a cooling mode or a heating mode, and judging the relation between T and T1, T2, T3 and T4, wherein T1, T2, T3 and T4 are all preset temperatures, and T3 is more than T4 is more than T1 is more than T2;
a control step of controlling opening or closing of the first throttle device and the second throttle device and opening or closing of the pump according to different operation modes and relationships between T and T1, T2, T3, and T4 when the first throttle device, the second throttle device, and the pump are included.
In some embodiments, in the control step, when the operation mode is a refrigeration mode and T is greater than or equal to T2, the first throttling device is controlled to be opened, the second throttling device is controlled to be opened, the pump is controlled to be opened, the secondary refrigerant and the refrigerant are subjected to heat exchange through the fourth heat exchanger and then are cooled to the user through the secondary refrigerant at the heat exchange terminal, and meanwhile, the user is cooled through the heat exchange terminal by the condensed water in the water receiving part and the interior of the vehicle is cooled through the heat exchanger in the vehicle;
when the operation mode is a refrigeration mode and T is less than T1, the first throttling device is controlled to be opened, the second throttling device is controlled to be closed, the pump is controlled to be closed, and the user is refrigerated through the heat exchange terminal by the condensed water in the water receiving part and the interior of the vehicle is refrigerated through the heat exchanger in the vehicle;
and when the operation mode is a refrigeration mode and T is not less than T1 and is less than T2, controlling the first throttling device to be closed, controlling the second throttling device to be opened, controlling the pump to be opened, and refrigerating a user at the heat exchange terminal through the secondary refrigerant after the secondary refrigerant exchanges heat with the refrigerant through the fourth heat exchanger.
In some embodiments, when the operation mode is a heating mode and T is less than T3, the control step controls the first throttling device to be opened, controls the second throttling device to be opened, controls the pump to be opened, heats a user through the heat exchange terminal by the secondary refrigerant after the secondary refrigerant exchanges heat with the refrigerant through the fourth heat exchanger, and heats the interior of the vehicle through the heat exchanger in the vehicle;
when the operation mode is a heating mode and T is more than or equal to T4, controlling the first throttling device to be opened, controlling the second throttling device to be closed, controlling the pump to be closed, and heating the interior of the vehicle through the heat exchanger in the vehicle;
and when the operation mode is a heating mode and T is not less than T3 and is less than T4, controlling the first throttling device to be closed, controlling the second throttling device to be opened, controlling the pump to be opened, and heating the user through the secondary refrigerant at the heat exchange terminal after the secondary refrigerant exchanges heat with the refrigerant through the fourth heat exchanger.
The vehicle air conditioner and the control method thereof provided by the invention have the following beneficial effects:
according to the invention, by arranging the first pipeline and the heat exchange terminal, condensed water generated by the vehicle interior heat exchanger in the water receiving part can be used for refrigerating and cooling a user through the heat exchange terminal, and the water receiving part is made into a structure of a closed container, the water in the water receiving part is not communicated with the environment outside the vehicle, so that heat exchange between external air and the condensed water can be effectively isolated, heat exchange influence on inlet air or outlet air of the vehicle interior heat exchanger can be avoided, ineffective heat exchange with the environment outside the vehicle is reduced, the problems that the outlet air temperature is increased during air conditioner refrigeration and the outlet air temperature is reduced during heating can be solved, the load in the vehicle can not be increased, and the performance and the energy efficiency can be effectively improved, compared with the integral overhead parking air conditioner with the traditional drainage tank directly communicated with the environment outside the vehicle, the heat exchange effect is improved by 15.7%; the invention effectively recycles the condensed water, reasonably recycles the cold energy of the condensed water and realizes the utilization of waste heat; the heat exchanger can convert cold or heat in the main refrigerant circulation loop to the secondary refrigerant through the fourth heat exchanger and the terminal heat exchanger, and directly acts on a user through the heat exchange terminal, so that the problems of air supply distance of an evaporation cavity and the like are avoided, the effect of body sensing temperature difference caused by long air supply distance is reduced, the comfort level and experience degree of the user are effectively improved, and the heat exchange effect and the body sensing temperature of the overhead integrated parking air conditioner only using air cooling for heat exchange are improved by more than 30% compared with the traditional overhead integrated parking air conditioner only using air cooling for heat exchange.
Drawings
FIG. 1 is a schematic structural diagram of an overhead integrated parking air conditioner and auxiliary heat exchange system of the present invention;
FIG. 2 is a system flow diagram of the vehicle air conditioning system of the present invention during cooling by the air conditioning + auxiliary heat exchange system;
FIG. 3 is a system flow diagram of the vehicle air conditioning system of the present invention when air conditioned solely for cooling;
FIG. 4 is a system flow diagram of the vehicle air conditioning system of the present invention during cooling by the auxiliary heat exchange system alone;
fig. 5 is a system flow diagram of the vehicle air conditioning system of the present invention when the air conditioning heating + the auxiliary heat exchanging system heats;
FIG. 6 is a system flow diagram of the vehicle air conditioning system of the present invention during heating by the air conditioner alone;
FIG. 7 is a system flow diagram of the vehicle air conditioning system of the present invention during heating by the auxiliary heat exchange system alone;
the reference numbers in the figures denote:
1. a compressor; 210. an exterior heat exchanger; 220. a heat exchanger inside the vehicle; 410. a first throttling device; 420. a second throttling device; 6. a four-way valve; D. a first end; C. a second end; s, a third end; E. a fourth end; 7. a gas-liquid separator; 8. a fourth heat exchanger; 9. a water receiving part; 10. a heat exchange terminal; 11. a pump; 12. a container; 13. a drain pipe; 1410. a first temperature sensor; 1420. a second temperature sensor; 1430. a third temperature sensor; 1440. a fourth temperature sensor; 101. a first pipeline; 102. a second pipeline; 103. a third pipeline.
Detailed Description
As shown in fig. 1 to 7, the present invention provides a vehicle air conditioner, which includes:
According to the invention, by arranging the first pipeline and the heat exchange terminal, condensed water generated by the vehicle interior heat exchanger in the water receiving part can be used for refrigerating and cooling a user through the heat exchange terminal, and the water receiving part is made into a structure of a closed container, the water in the water receiving part is not communicated with the environment outside the vehicle, so that heat exchange between external air and the condensed water can be effectively isolated, heat exchange influence on inlet air or outlet air of the vehicle interior heat exchanger can be avoided, ineffective heat exchange with the environment outside the vehicle is reduced, the problems that the outlet air temperature is increased during air conditioner refrigeration and the outlet air temperature is reduced during heating can be solved, the load in the vehicle can not be increased, and the performance and the energy efficiency can be effectively improved, compared with the integral overhead parking air conditioner with the traditional drainage tank directly communicated with the environment outside the vehicle, the heat exchange effect is improved by 15.7%; the invention effectively recycles the condensed water, reasonably recycles the cold energy of the condensed water and realizes the utilization of waste heat.
An exhaust port of the compressor 1 is connected with a D end of the four-way valve 6, a C end of the four-way valve 6 is connected with the heat exchanger 210 outside the vehicle, the other end of the heat exchanger 210 outside the vehicle is connected with a first electronic expansion valve (a first throttling device 410) and a second electronic expansion valve (a second throttling device 420), the other end of the first electronic expansion valve is connected with the heat exchanger 220 inside the vehicle, the other end of the heat exchanger 220 inside the vehicle is connected with an E end of the four-way valve 6, an S end of the four-way valve 6 is connected with one end of the gas-liquid separator 7, and the other end of the gas-liquid separator 7 is connected with an air suction port of the compressor 1. The other end of the second electronic expansion valve is connected to one end of the refrigerant flow path of the plate heat exchanger (fourth heat exchanger 8), and the other end of the refrigerant flow path of the plate heat exchanger is connected to the E-port of the four-way valve 6.
The water discharge pipe of the water receiving tray (water receiving part 9) is connected with one end of an inlet of a heat exchange terminal 10, one end of the inlet of the heat exchange terminal 10 is connected with one end of a water inlet of a water tank (container 12), a water outlet of the water tank is connected with a water suction port of a pump 11, a water discharge port of the pump 11 is connected with an inlet of a secondary refrigerant flow path of the plate heat exchanger, an outlet of the secondary refrigerant flow path of the plate heat exchanger is connected with the other end of the inlet of the heat exchange terminal 10, the other end of the outlet of the heat exchange terminal 10 is connected with the other end of the water inlet of the water tank, and a water discharge port of the water tank is connected with the outside of the vehicle through a water discharge pipe 13.
In some embodiments, the system further comprises a fourth heat exchanger 8, a second pipeline 102 and a third pipeline 103, wherein one end of the second pipeline 102 is communicated with one end of the on-board heat exchanger 220, the other end of the second pipeline 102 is communicated to the first throttling device 410 and a pipe section between the on-board heat exchanger 210, the fourth heat exchanger 8 is arranged on the second pipeline 102, and a second throttling device 420 is further arranged on the second pipeline 102;
one end of the third pipeline 103 passes through the fourth heat exchanger 8, and the other end of the third pipeline 103 passes through the heat exchange terminal 10, and the coolant flowing in the third pipeline 103 can exchange heat with the coolant flowing in the second pipeline 102 at the fourth heat exchanger 8.
The heat exchanger can convert cold or heat in the main refrigerant circulation loop to the secondary refrigerant through the fourth heat exchanger and the terminal heat exchanger, and directly acts on a user through the heat exchange terminal, so that the problems of air supply distance of an evaporation cavity and the like are avoided, the effect of body sensing temperature difference caused by long air supply distance is reduced, the comfort level and experience degree of the user are effectively improved, and the heat exchange effect and the body sensing temperature of the overhead integrated parking air conditioner only using air cooling for heat exchange are improved by more than 30% compared with the traditional overhead integrated parking air conditioner only using air cooling for heat exchange. The heat exchanger in the vehicle of the invention usually generates cold air or hot air by blowing cold air or hot air to refrigerate or heat the interior of the vehicle, has poor refrigeration effect or heating effect to users, slow refrigeration or heating speed and long air supply distance, and the heat exchanger directly acts on the users to exchange heat through the heat exchange terminal, thus improving the experience degree and comfort degree of the users.
In some embodiments, the heat exchanger further comprises a container 12, and the other end of the first pipeline 101 passes through the heat exchange terminal 10 and then is communicated with the inside of the container 12. The invention can also recover the secondary refrigerant (preferably water) and provide the secondary refrigerant for the secondary refrigerant loop, recover the secondary refrigerant of the heat exchange terminal or provide the secondary refrigerant for the heat exchange terminal through the arrangement of the container.
In some embodiments, the other end of the third pipeline 103 passes through the heat exchange terminal 10 and then communicates with the inside of the container 12, one end of the third pipeline 103 passes through the fourth heat exchanger 8 and then communicates with the inside of the container 12, and a pump 11 is disposed on the third pipeline 103. The heat exchange terminal, the fourth heat exchanger and the container can be connected in series to form a secondary refrigerant loop through the arrangement of the third pipeline, and cold or heat is absorbed from the main refrigerant loop through the fourth heat exchanger and then is conveyed to the heat exchange terminal to refrigerate or heat a user, so that the comfort level and the experience degree of the user are improved.
In some embodiments, the container 12 is further provided with a drain 13; and/or the presence of a gas in the gas,
the fourth heat exchanger 8 is a plate heat exchanger; and/or, the heat exchange terminal 10 is a heat exchange pad capable of being placed on a sleeper or a seat. The fourth heat exchanger is a plate heat exchanger and can enhance the heat exchange efficiency of the secondary refrigerant and the refrigerant; the heat exchange terminal can directly act on the user for the heat exchange pad arranged on the sleeping berth or the seat, and the comfort level and the experience degree of the user are improved.
In some embodiments, the coolant is water, the container 12 is a water tank, and the pump 11 is a water pump. The coolant of the present invention is preferably water, the container is preferably a water tank, and the pump is preferably a water pump, and water is used as the coolant to perform efficient heat exchange with the coolant.
In some embodiments, a fourth temperature sensor 1440 is disposed at one end of the fourth heat exchanger 8 connected to the second pipeline 102, a second temperature sensor 1420 is disposed at the other end of the fourth heat exchanger 8 connected to the second pipeline 102, a third temperature sensor 1430 is disposed at one end of the fourth heat exchanger 8 connected to the third pipeline 103, and a first temperature sensor 1410 is disposed at the other end of the fourth heat exchanger 8 connected to the third pipeline 103. The four temperature sensors arranged at the four interface ends of the fourth heat exchanger can detect the temperature of the refrigerant at the four positions, and temperature conditions are provided for realizing accurate and intelligent control.
In some embodiments, a four-way valve 6 is further included, the four-way valve 6 including a first end D in communication with the discharge end of the compressor 1, a second end C in communication with the exterior heat exchanger 210, a third end S in communication with the suction end of the compressor 1, and a fourth end E in communication with the interior heat exchanger 220. The invention can adjust the operation mode of the main refrigerant circulation loop into a cooling mode or a heating mode and effectively switch between the two modes through the arrangement of the four-way valve.
In some embodiments, the vehicle air conditioner is a parking air conditioner. The vehicle air conditioner is a parking air conditioner, can effectively refrigerate or heat the interior of a vehicle when the vehicle is parked, improves the comfort level and experience degree of a user, saves energy and improves energy efficiency. Preferably an overhead integrated parking air conditioner and an auxiliary heat exchange system.
The present invention also provides a control method of a vehicle air conditioner as set forth in any one of the above, comprising:
a detection step, detecting an operation mode and an outdoor environment temperature T;
a judging step of judging whether the operation mode is a cooling mode or a heating mode, and judging the relation between T and T1, T2, T3 and T4, wherein T1, T2, T3 and T4 are all preset temperatures, and T3 is more than T4 is more than T1 is more than T2;
a control step of controlling opening or closing of the first throttle device and the second throttle device and opening or closing of the pump according to different operation modes and relationships between T and T1, T2, T3, and T4 when the first throttle device, the second throttle device, and the pump are included.
The invention judges and controls the operation mode of the vehicle air conditioner by detecting the operation mode of the air conditioner and the temperature of the outdoor heat exchanger, and can control the refrigeration of large cooling capacity, the refrigeration of medium cooling capacity or the refrigeration of small cooling capacity, the heating of large heat, the heating of medium heat or the heating of small heat according to the outdoor temperature, thereby improving more accurate heat or cooling capacity for users, reducing energy consumption and improving the energy efficiency of the system while meeting the comfort level (heat comfort or cooling comfort) of the users.
In some embodiments, in the control step, when the operation mode is a refrigeration mode and T is greater than or equal to T2, the first throttling device is controlled to be opened, the second throttling device is controlled to be opened, the pump is controlled to be opened, the secondary refrigerant and the refrigerant are subjected to heat exchange through the fourth heat exchanger and then are cooled to the user through the secondary refrigerant at the heat exchange terminal, and meanwhile, the user is cooled through the heat exchange terminal by the condensed water in the water receiving portion 9 and the interior of the vehicle is cooled through the interior heat exchanger;
when the operation mode is a refrigeration mode and T is less than T1, the first throttling device is controlled to be opened, the second throttling device is controlled to be closed, the pump is controlled to be closed, and the user is refrigerated through the heat exchange terminal by the condensed water in the water receiving part 9 and the interior of the vehicle is refrigerated through the heat exchanger in the vehicle;
and when the operation mode is a refrigeration mode and T is not less than T1 and is less than T2, controlling the first throttling device to be closed, controlling the second throttling device to be opened, controlling the pump to be opened, and refrigerating a user at the heat exchange terminal through the secondary refrigerant after the secondary refrigerant exchanges heat with the refrigerant through the fourth heat exchanger.
The control method is a plurality of different control modes of the refrigeration mode operation, the heat exchanger in the vehicle and the fourth heat exchanger can be controlled to be opened under the condition that T is more than or equal to T2 (namely, the outdoor temperature in summer is very high), the vehicle is refrigerated through the heat exchange terminal and the heat exchanger in the vehicle, the fourth heat exchanger assists in cold-carrying and heat exchange and acts on the heat exchange terminal, and the condensate water assists in heat exchange and acts on the heat exchange terminal, so that the refrigerating capacity of the heat exchange terminal can be effectively improved, a user is refrigerated to the maximum degree, the comfort level is improved, and the energy consumption is reduced; the method has the advantages that the heat exchanger in the vehicle is controlled to be opened and the fourth heat exchanger is controlled to be closed under the condition that T is less than T1 (namely, the outdoor temperature in summer is lower), and the condensed water acts on the heat exchange terminal and the heat exchanger in the vehicle to refrigerate the interior of the vehicle together, so that proper refrigerating capacity can be provided, the comfort level of a user is improved, and the energy consumption is reduced; the heat exchanger in the vehicle can be controlled to be closed under the condition that T1 is not more than T < T2 (namely, the outdoor temperature in summer is higher), the fourth heat exchanger is opened, the interior of the vehicle is refrigerated only through the heat exchange terminal, the refrigerating capacity of the heat exchange terminal can be effectively improved, the comfort level of a user is improved, and the energy consumption is reduced.
Fig. 2 is a schematic structural view of an air-conditioning refrigeration + auxiliary heat exchange refrigeration system of an overhead integrated parking air conditioner, in which the D end of the four-way valve 6 is communicated with the C end, and the E end is communicated with the S end;
high-temperature and high-pressure refrigerant discharged by the compressor 1 enters the heat exchanger 210 outside the vehicle through the D, C end of the four-way valve 6 to be cooled and released heat and then is divided into two paths, one path of refrigerant passes through the first electronic expansion valve (the first throttling device 410) to be throttled and then enters the heat exchanger 220 inside the vehicle to be evaporated and absorbed heat, the other path of refrigerant passes through the second electronic expansion valve (the second throttling device 420) to be throttled and then enters the plate heat exchanger (the fourth heat exchanger 8) to be evaporated and absorbed heat, then the refrigerant which passes through the first electronic expansion valve to be throttled and then enters the heat exchanger 220 inside the vehicle to be evaporated and absorbed heat is mixed, then the mixed refrigerant enters the gas-liquid separator 7 after passing through the E, S end of the four-way valve 6, and finally the low-temperature and low-pressure refrigerant enters the compressor 1 to be sucked.
The secondary refrigerant water discharged from the outlet of the water pump releases heat through the plate heat exchanger, enters the heat exchange terminal 10 to absorb heat, enters the water tank and returns to the water pump.
The condensed water generated by the heat exchanger 220 in the vehicle flows into the heat exchange terminal 10 through the water pan, absorbs heat, enters the water tank, and flows to the outside of the vehicle through the drain pipe 13 to be discharged when the water level of the water tank exceeds the maximum water level warning line.
Fig. 3 is a schematic structural view of an air-conditioning refrigeration system of an overhead integrated parking air conditioner, in which the D end of the four-way valve 6 is communicated with the C end, and the E end is communicated with the S end;
high-temperature and high-pressure refrigerant discharged by the compressor 1 enters the heat exchanger 210 outside the vehicle through the D, C end of the four-way valve 6 to be cooled and released, then flows through the first electronic expansion valve for throttling, enters the heat exchanger 220 inside the vehicle to be evaporated and absorbed, then flows through the E, S end of the four-way valve 6 to enter the gas-liquid separator 7, and finally, low-temperature and low-pressure refrigerant enters the compressor 1 to be sucked.
The condensed water generated by the heat exchanger 220 in the vehicle flows into the heat exchange terminal 10 through the water pan, absorbs heat, enters the water tank, and flows to the outside of the vehicle through the drain pipe 13 to be discharged when the water level of the water tank exceeds the maximum water level warning line.
Fig. 4 is a schematic structural view of an auxiliary heat exchange refrigeration system of an overhead integrated parking air conditioner, in which the D end of the four-way valve 6 is communicated with the C end, and the E end is communicated with the S end;
the high-temperature and high-pressure refrigerant discharged by the compressor 1 enters the heat exchanger 210 outside the vehicle through the D, C end of the four-way valve 6 for cooling and heat release, then enters the plate heat exchanger after passing through the second electronic expansion valve for throttling, is evaporated and absorbs heat, then enters the gas-liquid separator 7 after passing through the E, S end of the four-way valve 6, and finally enters the compressor 1 for air suction at low temperature and low pressure.
The secondary refrigerant water discharged from the outlet of the water pump releases heat through the plate heat exchanger, enters the heat exchange terminal 10 to absorb heat, enters the water tank and returns to the water pump.
In some embodiments, when the operation mode is a heating mode and T is less than T3, the control step controls the first throttling device to be opened, controls the second throttling device to be opened, controls the pump to be opened, heats a user through the heat exchange terminal by the secondary refrigerant after the secondary refrigerant exchanges heat with the refrigerant through the fourth heat exchanger, and heats the interior of the vehicle through the heat exchanger in the vehicle;
when the operation mode is a heating mode and T is more than or equal to T4, controlling the first throttling device to be opened, controlling the second throttling device to be closed, controlling the pump to be closed, and heating the interior of the vehicle through the heat exchanger in the vehicle;
and when the operation mode is a heating mode and T is not less than T3 and is less than T4, controlling the first throttling device to be closed, controlling the second throttling device to be opened, controlling the pump to be opened, and heating the user through the secondary refrigerant at the heat exchange terminal after the secondary refrigerant exchanges heat with the refrigerant through the fourth heat exchanger.
The control method is a plurality of different control modes of the heating mode operation, the heat exchanger in the vehicle and the fourth heat exchanger can be controlled to be opened under the condition that T is less than T3 (namely, the outdoor temperature in winter is very low), the vehicle is heated through the heat exchange terminal and the heat exchanger in the vehicle, the fourth heat exchanger assists in cold-carrying heat exchange and acts on the heat exchange terminal, and the condensate water assists in heat exchange and acts on the heat exchange terminal, so that the heating quantity of the heat exchange terminal can be effectively improved, the user is heated to the maximum degree, the comfort level is improved, and the energy consumption is reduced; the method has the advantages that the heat exchanger in the vehicle is controlled to be opened and the fourth heat exchanger is controlled to be closed under the condition that T is more than or equal to T4 (namely, the outdoor temperature is higher in winter), the heat exchanger in the vehicle is used for heating the interior of the vehicle, appropriate heating quantity can be provided, the comfort level of a user is improved, and the energy consumption is reduced; the heat exchanger in the vehicle can be controlled to be closed under the condition that T3 is not more than T and is less than T4 (namely, the outdoor temperature in winter is lower), the fourth heat exchanger is opened, the vehicle interior is heated only through the heat exchange terminal, the heating quantity of the heat exchange terminal can be effectively improved, the comfort level of a user is improved, and the energy consumption is reduced.
Fig. 5 is a schematic structural view of an air conditioner heating and auxiliary heat exchange heating system of an overhead integrated parking air conditioner, in which the D end of the four-way valve 6 is communicated with the E end, and the C end is communicated with the S end;
high-temperature and high-pressure refrigerant discharged by the compressor 1 is divided into two paths through the D, E end of the four-way valve 6, one path of the refrigerant enters the in-vehicle heat exchanger 220 to be cooled and released heat and then flows through the first electronic expansion valve (the first throttling device 410) to be throttled, the other path of the refrigerant enters the plate heat exchanger to be cooled and released heat and then flows through the second electronic expansion valve (the second throttling device 420) to be throttled, then enters the in-vehicle heat exchanger 220 to be cooled and released heat, is mixed with the refrigerant throttled by the first electronic expansion valve, enters the out-vehicle heat exchanger 210 to be evaporated and absorbed heat, then flows through the C, S end of the four-way valve 6 and then enters the gas-liquid separator 7, and finally, the low-temperature and low-pressure refrigerant enters the compressor 1 to be sucked.
The coolant water discharged from the outlet of the pump 11 absorbs heat through the plate heat exchanger, enters the heat exchange terminal 10 to release heat, enters the water tank and returns to the water pump.
Fig. 6 is a schematic structural view of an air conditioning and heating system of an overhead integrated parking air conditioner, in which the D end of the four-way valve 6 is communicated with the E end, and the C end is communicated with the S end;
the high-temperature and high-pressure refrigerant discharged by the compressor 1 passes through the D, E end of the four-way valve 6, enters the inside heat exchanger 220 for cooling and heat release, then flows through the first electronic expansion valve for throttling, enters the outside heat exchanger 210 for evaporation and heat absorption, then flows through the C, S end of the four-way valve 6, enters the gas-liquid separator 7, and finally enters the compressor 1 for air suction at low temperature and low pressure.
Fig. 7 is a schematic structural view of an auxiliary heat exchange heating system of an overhead integrated parking air conditioner, where a D end of a four-way valve 6 is communicated with an E end, and a C end is communicated with an S end;
high-temperature and high-pressure refrigerant discharged by the compressor 1 enters the plate heat exchanger (the fourth heat exchanger 8) through the D, E end of the four-way valve 6 to be cooled and released heat, then flows through the second electronic expansion valve to be throttled, enters the inside heat exchanger 220 to be cooled and released heat, then enters the outside heat exchanger 210 to be evaporated and absorbed heat, then flows through the C, S end of the four-way valve 6 to enter the gas-liquid separator 7, and finally, low-temperature and low-pressure refrigerant enters the compressor 1 to be sucked.
The secondary refrigerant water discharged from the outlet of the water pump absorbs heat through the plate heat exchanger, enters the heat exchange terminal 10, releases heat, enters the water tank and returns to the water pump.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention. The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (12)
1. A vehicle air conditioner, characterized in that: the method comprises the following steps:
compressor (1), outer heat exchanger (210), heat exchanger (220), first throttling arrangement (410), water receiving portion (9) and heat transfer terminal (10) in the car, compressor (1) outer heat exchanger (210) first throttling arrangement (410) with heat exchanger (220) can connect and form main refrigerant circulation circuit in the car, the comdenstion water that heat exchanger (220) produced in the car can be accepted in water receiving portion (9), vehicle air conditioner still includes first pipeline (101), the one end of first pipeline (101) with inside intercommunication, the other end intercommunication of water receiving portion (9) heat transfer terminal (10) are in order to refrigerate or heat the user, water receiving portion (9) are for the closed container relatively confined with the car, the inside water of water receiving portion (9) does not communicate with the environment of car.
2. The vehicle air conditioner according to claim 1, characterized in that:
the heat exchanger further comprises a fourth heat exchanger (8), a second pipeline (102) and a third pipeline (103), one end of the second pipeline (102) is communicated with one end of the heat exchanger (220) inside the vehicle, the other end of the second pipeline (102) is communicated to the first throttling device (410) and a pipe section between the first throttling device and the heat exchanger (210) outside the vehicle, the fourth heat exchanger (8) is arranged on the second pipeline (102), and a second throttling device (420) is further arranged on the second pipeline (102);
one end of the third pipeline (103) passes through the fourth heat exchanger (8), and the other end of the third pipeline (103) passes through the heat exchange terminal (10), wherein the coolant flowing in the third pipeline (103) can exchange heat with the coolant flowing in the second pipeline (102) at the fourth heat exchanger (8).
3. The vehicle air conditioner according to claim 2, characterized in that:
the heat exchanger further comprises a container (12), and the other end of the first pipeline (101) penetrates through the heat exchange terminal (10) and then is communicated with the interior of the container (12).
4. The vehicle air conditioner according to claim 3, characterized in that:
the other end of the third pipeline (103) penetrates through the heat exchange terminal (10) and then is communicated with the inside of the container (12), one end of the third pipeline (103) penetrates through the fourth heat exchanger (8) and then is communicated with the inside of the container (12), and a pump (11) is arranged on the third pipeline (103).
5. The vehicle air conditioner according to claim 4, characterized in that:
the container (12) is also communicated with a drain pipe (13); and/or the presence of a gas in the gas,
the fourth heat exchanger (8) is a plate heat exchanger; and/or the heat exchange terminal (10) is a heat exchange pad capable of being placed on a sleeper or a seat.
6. The vehicle air conditioner according to claim 4, characterized in that:
the secondary refrigerant is water, the container (12) is a water tank, and the pump (11) is a water pump.
7. The vehicle air conditioner according to claim 2, characterized in that:
a fourth temperature sensor (1440) is arranged at one end, connected with the second pipeline (102), of the fourth heat exchanger (8), a second temperature sensor (1420) is arranged at the other end, connected with the second pipeline (102), of the fourth heat exchanger (8), a third temperature sensor (1430) is arranged at one end, connected with the third pipeline (103), of the fourth heat exchanger (8), and a first temperature sensor (1410) is arranged at the other end, connected with the third pipeline (103), of the fourth heat exchanger (8).
8. The vehicular air conditioner according to any one of claims 1 to 7, characterized in that:
the automobile exhaust heat exchanger is characterized by further comprising a four-way valve (6), wherein the four-way valve (6) comprises a first end (D), a second end (C), a third end (S) and a fourth end (E), the first end (D) is communicated with an exhaust end of the compressor (1), the second end (C) is communicated with the heat exchanger (210) outside the automobile, the third end (S) is communicated with an air suction end of the compressor (1), and the fourth end (E) is communicated with the heat exchanger (220) inside the automobile.
9. A vehicular air conditioner according to any one of claims 1 to 8, characterized in that:
the vehicle air conditioner is a parking air conditioner.
10. A control method of a vehicular air conditioner according to any one of claims 1 to 9, characterized in that:
the method comprises the following steps: a detection step, detecting an operation mode and an outdoor environment temperature T;
a judging step of judging whether the operation mode is a cooling mode or a heating mode, and judging the relation between T and T1, T2, T3 and T4, wherein T1, T2, T3 and T4 are all preset temperatures, and T3 is more than T4 is more than T1 is more than T2;
a control step of controlling opening or closing of the first throttle device and the second throttle device and opening or closing of the pump according to different operation modes and relationships between T and T1, T2, T3, and T4 when the first throttle device, the second throttle device, and the pump are included.
11. The control method according to claim 10, characterized in that:
the control step includes controlling the first throttling device to be opened, controlling the second throttling device to be opened, controlling the pump to be opened, carrying out heat exchange on secondary refrigerant and refrigerant through the fourth heat exchanger, refrigerating a user through the secondary refrigerant at the heat exchange terminal, and refrigerating the user through the heat exchange terminal and the interior of the vehicle through the heat exchanger in the vehicle by using condensed water in the water receiving part (9) when the operation mode is a refrigeration mode and T is not less than T2;
when the operation mode is a refrigeration mode and T is less than T1, the first throttling device is controlled to be opened, the second throttling device is controlled to be closed, the pump is controlled to be closed, and the user is refrigerated through the heat exchange terminal by the condensed water in the water receiving part (9) and the interior of the vehicle is refrigerated through the interior heat exchanger;
and when the operation mode is a refrigeration mode and T is not less than T1 and is less than T2, controlling the first throttling device to be closed, controlling the second throttling device to be opened, controlling the pump to be opened, and refrigerating a user at the heat exchange terminal through the secondary refrigerant after the secondary refrigerant exchanges heat with the refrigerant through the fourth heat exchanger.
12. The control method according to claim 10, characterized in that:
a control step, when the operation mode is a heating mode and T is less than T3, controlling the first throttling device to be opened, controlling the second throttling device to be opened, controlling the pump to be opened, heating a user through the heat exchange terminal by the secondary refrigerant after the secondary refrigerant exchanges heat with the refrigerant through the fourth heat exchanger, and heating the interior of the vehicle through the heat exchanger in the vehicle;
when the operation mode is a heating mode and T is more than or equal to T4, controlling the first throttling device to be opened, controlling the second throttling device to be closed, controlling the pump to be closed, and heating the interior of the vehicle through the heat exchanger in the vehicle;
and when the operation mode is a heating mode and T is not less than T3 and is less than T4, controlling the first throttling device to be closed, controlling the second throttling device to be opened, controlling the pump to be opened, and heating the user through the secondary refrigerant at the heat exchange terminal after the secondary refrigerant exchanges heat with the refrigerant through the fourth heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210044087.7A CN114290875A (en) | 2022-01-14 | 2022-01-14 | Vehicle air conditioner and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210044087.7A CN114290875A (en) | 2022-01-14 | 2022-01-14 | Vehicle air conditioner and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114290875A true CN114290875A (en) | 2022-04-08 |
Family
ID=80978362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210044087.7A Pending CN114290875A (en) | 2022-01-14 | 2022-01-14 | Vehicle air conditioner and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114290875A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116336696A (en) * | 2023-03-27 | 2023-06-27 | 广州汽车集团股份有限公司 | Energy recovery method, system and vehicle |
-
2022
- 2022-01-14 CN CN202210044087.7A patent/CN114290875A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116336696A (en) * | 2023-03-27 | 2023-06-27 | 广州汽车集团股份有限公司 | Energy recovery method, system and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110422082A (en) | A kind of hybrid vehicle integrated heat management system and its control method | |
| CN106585323B (en) | Working mode of new energy automobile air conditioning system with quick defrosting and demisting functions | |
| CN211280561U (en) | New energy automobile thermal management system | |
| CN111637659A (en) | High-energy-efficiency heat pump air conditioning system and control method thereof | |
| CN115675013A (en) | Multi-working-condition finished automobile thermal management system and method for new energy electric automobile | |
| CN209776090U (en) | Air conditioning system of electric automobile | |
| CN214324840U (en) | Low-temperature heat pump air conditioner device of new energy automobile | |
| CN108317766A (en) | A kind of air-conditioning system and electric bus of electric bus | |
| CN212902090U (en) | High-energy-efficiency heat pump air conditioning system | |
| CN111591100A (en) | Vehicle, air conditioning system of vehicle and control method of air conditioning system | |
| CN102059930B (en) | Heat-recovery vehicle air conditioner | |
| CN106705530A (en) | Car-mounted refrigerator device utilizing car air conditioner condensate water | |
| CN109624650B (en) | Air conditioning system for vehicle | |
| CN101625185A (en) | Dewatering mildew-proof device of vehicle air-condition evaporator and dewatering mildew-proof method thereof | |
| CN114290875A (en) | Vehicle air conditioner and control method thereof | |
| WO2024041432A1 (en) | Air conditioning system and vehicle | |
| CN209274302U (en) | A kind of heat management system of electric vehicle | |
| CN216833117U (en) | Vehicle air conditioner | |
| CN213322561U (en) | Vehicle and air conditioning system of vehicle | |
| CN112297769B (en) | All-weather electric automobile heat pump air-conditioning system | |
| CN114379326A (en) | Electric automobile double-shunt heat management system | |
| CN113895205A (en) | Economical heat pump system with waste heat recovery function | |
| CN109808448B (en) | Air conditioning system, control method thereof and automobile | |
| CN207825875U (en) | A kind of electric automobile energy saving seat-air conditioning system | |
| CN111780465A (en) | Shutdown-free electric automobile heat pump defrosting system and operation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |