CN218519495U - CO 2 Heat pump air conditioning system and vehicle - Google Patents
CO 2 Heat pump air conditioning system and vehicle Download PDFInfo
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- CN218519495U CN218519495U CN202222316603.5U CN202222316603U CN218519495U CN 218519495 U CN218519495 U CN 218519495U CN 202222316603 U CN202222316603 U CN 202222316603U CN 218519495 U CN218519495 U CN 218519495U
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Abstract
The utility model provides a CO 2 Heat pump air conditioning system, vehicle, and CO 2 The heat pump air conditioning system comprises a refrigerant loop and a battery heat exchange loop, wherein a compressor, an outdoor heat exchanger, an indoor heat exchanger and CO are arranged in the refrigerant loop 2 The gas-liquid separator, the battery heat exchange loop is provided with a radiator, a heat exchange pump and a battery. The indoor heat exchanger comprises an internal heat exchanger and an evaporator which are connected in series through a first refrigerant pipeline, and a heat exchanger is arranged between the refrigerant loop and the battery heat exchange loop; the coolant side of the heat exchanger is connected in parallel in the battery heat exchange loop, and one end of the refrigerant side of the heat exchanger is connected in parallel in the first systemThe refrigerant pipeline and the second refrigerant pipeline are provided with a first electric control stop valve, and the other end of the refrigerant side of the heat exchanger is connected with the evaporator and the CO in parallel 2 And a second electric control stop valve is arranged between the gas-liquid separator and the third refrigerant pipeline. By optimizing the system architecture, the battery can be directly and actively heated by the refrigerant, so that the working energy efficiency ratio of the system can be improved.
Description
Technical Field
The utility model relates toThe technical field of air conditioners, in particular to CO 2 A heat pump air conditioning system. The utility model also relates to an application that has this CO 2 A vehicle with a heat pump air conditioning system.
Background
At present, a new energy electric automobile cannot utilize an engine heat source to supply heat to a passenger cabin in winter because of no engine, so that heat is required to be produced in other modes to be supplied to the passenger cabin, and many enterprises begin to adopt CO from the perspective of customer comfort and vehicle economy 2 Refrigerant heat pump air conditioning systems to achieve passenger heating requirements at low ambient temperatures.
However, the existing CO 2 In the heat pump air conditioning system, the structure is complicated, and active heating on the refrigerant side cannot be performed. In addition, the existing CO 2 When the heat pump air conditioning system heats the battery, the passenger compartment cannot realize the dehumidification function. And at ultralow temperature, the flow rate of the refrigerant is small, so that CO is generated 2 The heat pump air conditioning system has low working energy efficiency ratio.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a CO 2 A heat pump air conditioning system to enable active heating of the battery with the refrigerant.
In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:
CO (carbon monoxide) 2 The heat pump air conditioning system comprises a refrigerant loop and a battery heat exchange loop;
the refrigerant loop is provided with a compressor, an outdoor heat exchanger, an indoor heat exchanger and CO 2 A gas-liquid separator;
a radiator, a heat exchange pump and a battery are arranged in the battery heat exchange loop;
wherein the content of the first and second substances,
the indoor heat exchanger comprises an internal heat exchanger and an evaporator which are connected in series through a first refrigerant pipeline, and a heat exchanger for exchanging heat between the refrigerant loop and the battery heat exchange loop is arranged between the refrigerant loop and the battery heat exchange loop;
the cooling liquid side of the heat exchanger is connected in parallel with the battery for heat exchangeIn the loop, one end of the refrigerant side of the heat exchanger is connected in parallel with the first refrigerant pipeline through a second refrigerant pipeline, a first electric control stop valve is arranged on the second refrigerant pipeline, and the other end of the refrigerant side of the heat exchanger is connected in parallel with the evaporator and the CO through a third refrigerant pipeline 2 And a second electric control stop valve is arranged between the gas-liquid separators and on the third refrigerant pipeline.
Further, the air heating PTC is arranged on one side of the indoor heat exchanger.
Furthermore, the battery heat exchange loop also comprises a motor heat dissipation module connected in parallel in the heat exchange pipeline, and the motor heat dissipation module is connected in series with a motor heat dissipation pump; and/or the battery heat exchange loop comprises a bypass pipeline connected in parallel in the heat exchange pipeline, and a bypass electromagnetic valve is arranged on the bypass pipeline.
Furthermore, a one-way valve positioned at one side of the battery is arranged in the battery heat exchange loop, and/or a water overflow tank is arranged in the battery heat exchange loop.
Furthermore, the outdoor heat exchanger is arranged on the air suction side of the heat dissipation fan.
Furthermore, the outlet of the compressor is connected with a four-way reversing valve, the four-way reversing valve is respectively connected with the internal heat exchanger through a fourth refrigerant pipeline, connected with one end of the outdoor heat exchanger through a fifth refrigerant pipeline, and connected with the inlet of the compressor through a sixth refrigerant pipeline; the other end of the outdoor heat exchanger is connected with the evaporator through a seventh refrigerant line, and the sixth refrigerant line and the seventh refrigerant line pass through the CO 2 And the third refrigerant pipeline is connected in parallel to the seventh refrigerant pipeline.
Furthermore, a first electronic expansion valve positioned between the second refrigerant pipeline connecting point and the evaporator is arranged on the first refrigerant pipeline; and a second electronic expansion valve positioned between the heat exchanger and the second electronic control stop valve is arranged on the third refrigerant pipeline.
Further, a third electronic expansion valve is arranged on the seventh refrigerant pipeline, and the third electronic expansion valve is positioned between the evaporator and a connection point of the third refrigerant pipeline; an eighth refrigerant pipeline is connected in parallel between the third refrigerant pipeline and the seventh refrigerant pipeline, one end of the eighth refrigerant pipeline is connected between the evaporator and the third electronic expansion valve, the other end of the eighth refrigerant pipeline is connected between the second electronic expansion valve and the second electronic control stop valve, and a third electronic control stop valve is arranged on the eighth refrigerant pipeline.
Furthermore, a ninth refrigerant pipeline is connected in parallel between the second refrigerant pipeline and the sixth refrigerant pipeline, one end of the ninth refrigerant pipeline is connected between the first electric control stop valve and the heat exchanger, and the other end of the ninth refrigerant pipeline is connected between the four-way reversing valve and the CO 2 And a fourth electric control stop valve is arranged between the gas-liquid separators and on the ninth refrigerant pipeline.
Compared with the prior art, the utility model discloses following advantage has:
CO of the utility model 2 The heat pump air-conditioning system enables CO to be generated by arranging the heat exchanger between the refrigerant loop and the battery heat exchange loop, arranging the first refrigerant pipeline, the second refrigerant pipeline and the third refrigerant pipeline, arranging the first electric control stop valve on the second refrigerant pipeline and arranging the second electric control stop valve on the third refrigerant pipeline 2 The heat pump air conditioning system can directly and actively heat the battery by using the refrigerant, so that the working energy efficiency ratio of the system can be improved, and the using effect of the system is improved.
In addition, through the first electronic expansion valve arranged on the first refrigerant pipeline, when the battery uses the refrigerant to carry out active heating, the passenger compartment can realize the dehumidification function, and the comfort of the passenger compartment is favorably improved.
Another object of the present invention is to provide a vehicle, wherein the CO is disposed in the vehicle 2 A heat pump air conditioning system.
The utility model discloses a vehicle and foretell CO 2 Compared with the prior art, the heat pump air conditioning system has the same beneficial effects, and the details are not repeated.
Drawings
The accompanying drawings, which form a part of the present disclosure, are included to provide a further understanding of the present disclosure, and are incorporated in and constitute a part of this specification, illustrate embodiments of the present disclosure and together with the description serve to explain the present disclosure. In the drawings:
FIG. 1 shows CO according to an embodiment of the present invention 2 The structural schematic diagram of the heat pump air conditioning system;
description of reference numerals:
1. a heat sink; 2. an outdoor heat exchanger; 3. a heat radiation fan; 4. a motor heat dissipation pump; 5. a motor heat dissipation module; 6. a heat exchange pump; 7. a battery; 8. a one-way valve; 9. a heat exchanger; 11. a four-way reversing valve; 12. a compressor; 13. CO 2 2 A gas-liquid separator; 14. an overflow tank; 15. an HVAC assembly; 152. an internal heat exchanger; 153. an evaporator; 17. a wind-heating PTC; 19. a bypass solenoid valve;
32. a heat exchange line; 39. a bypass line; 41. a first refrigerant line; 42. a second refrigerant line; 43. a third refrigerant line; 44. a fourth refrigerant line; 45. a fifth refrigerant line; 46. a sixth refrigerant line; 47. a seventh refrigerant line; 48. an eighth refrigerant line; 49. a ninth refrigerant line;
10. a first electrically controlled stop valve; 20. a second electrically controlled stop valve; 30. a third electrically controlled stop valve; 40. a fourth electrically controlled stop valve; 50. a first electronic expansion valve; 60. a second electronic expansion valve; 70. and a third electronic expansion valve.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it should be noted that, if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms first, second, etc. in this specification are not necessarily all referring to the same item, but are instead intended to cover the same item.
In addition, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless otherwise specifically limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in conjunction with the specific situation for a person of ordinary skill in the art.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example one
The present embodiment relates to a CO 2 The heat pump air conditioning system can realize the direct active heating of the battery by using the refrigerant, thereby being beneficial to improving CO 2 Energy efficiency ratio of heat pump air conditioning system.
CO of the present embodiment in terms of overall constitution 2 A heat pump air conditioning system, as shown in fig. 1, mainly includes a refrigerant circuit and a battery heat exchange circuit. Wherein, a heat exchanger 9 for heat exchange between the refrigerant circuit and the battery heat exchange circuit is arranged between the refrigerant circuit and the battery heat exchange circuit, so as to realize the heat exchange between the refrigerant and the cooling liquid.
Specifically, the refrigerant circuit of the present embodiment includes a compressor 12, an outdoor heat exchanger 2, an indoor heat exchanger, and CO 2 A gas-liquid separator 13. Wherein the indoor heat exchanger includes an inner heat exchanger 152 and an evaporator 153 connected in series by a first refrigerant line 41.
And the coolant side of the heat exchanger 9 is connected in parallel in the battery heat exchange circuitOne end of the refrigerant side of the heat exchanger 9 is connected in parallel to the first refrigerant line 41 through a second refrigerant line 42, the first electrically controlled stop valve 10 is arranged on the second refrigerant line 42, and the other end of the refrigerant side of the heat exchanger 9 is connected in parallel to the evaporator 153 and the CO through a third refrigerant line 43 2 And a second electrically controlled stop valve 20 is arranged between the gas-liquid separator 13 and on the third refrigerant pipeline 43.
With continued reference to fig. 1, in this embodiment, a four-way reversing valve 11 is connected to the outlet of the compressor 12, the four-way reversing valve 11 being connected to the inner heat exchanger 152 via a fourth refrigerant line 44, to one end of the outdoor heat exchanger 2 via a fifth refrigerant line 45, and to the inlet of the compressor 12 via a sixth refrigerant line 46, respectively. The other end of the outdoor heat exchanger 2 is connected to the evaporator 153 via a seventh refrigerant line 47, and the sixth refrigerant line 46 and the seventh refrigerant line 47 pass through CO 2 The gas-liquid separator 13 and the third refrigerant line 43 are connected in parallel to the seventh refrigerant line 47.
It should be noted that, the four-way selector valve 11 of the present embodiment has four valve ports a, b, c, and d, and the switching of the circuit can be realized by the combined opening and closing of the four valve ports, specifically, the combined opening and closing of the four valve ports, such as a-b, c-d, a-c, and b-d, and the timely reliability of the circuit switching can also be improved.
In a preferred embodiment, the first refrigerant line 41 is provided with a first electronic expansion valve 50 between the connection point of the second refrigerant line 42 and the evaporator 153, and the third refrigerant line 43 is provided with a second electronic expansion valve 60 between the heat exchanger 9 and the second electrically controlled shutoff valve 20. By the first electronic expansion valve 50, when the battery 7 is actively heated by using the refrigerant, the passenger compartment can be dehumidified, and the comfort of the passenger compartment can be improved.
A third electronic expansion valve 70 is provided on the seventh refrigerant line 47, and the third electronic expansion valve 70 is located between the connection point of the evaporator 153 and the third refrigerant line 43. An eighth refrigerant line 48 is connected in parallel between the third refrigerant line 43 and the seventh refrigerant line 47, one end of the eighth refrigerant line 48 is connected between the evaporator 153 and the third electronic expansion valve 70, the other end of the eighth refrigerant line 48 is connected between the second electronic expansion valve 60 and the second electronically controlled cut-off valve 20, and the third electronically controlled cut-off valve 30 is provided on the eighth refrigerant line 48.
As a further improvement of this embodiment, in this embodiment, a ninth refrigerant line 49 is connected in parallel between the second refrigerant line 42 and the sixth refrigerant line 46, one end of the ninth refrigerant line 49 is connected between the first electrically controlled stop valve 10 and the heat exchanger 9, and the other end of the ninth refrigerant line 49 is connected to the four-way reversing valve 11 and the CO 2 A fourth electric control stop valve 40 is arranged between the gas-liquid separator 13 and on the ninth refrigerant pipeline 49.
In the present embodiment, it is advantageous to precisely control the flow rate of the refrigerant according to the temperature or pressure in the pipe line by the first electronic expansion valve 50, the second electronic expansion valve 60, and the third electronic expansion valve 70 provided in the above. In addition, the first electrically controlled stop valve 10, the second electrically controlled stop valve 20, the third electrically controlled stop valve 30 and the fourth electrically controlled stop valve 40 have a function of opening and closing, that is, closing or opening of the refrigerant pipeline can be realized, and the refrigerant pipeline can be in a half-open and half-closed state, so that the flow rate in the refrigerant pipeline can be adjusted.
In addition, CO of the present example 2 The heat pump air conditioning system further includes a wind-warming PTC17, and the wind-warming PTC17 is disposed at one side of the indoor heat exchanger. Compared with the structural form adopting the water heating PTC, the air heating PTC17 can reduce the pipeline arrangement and save the system cost. With continued reference to fig. 1, the Air-warming PTC17 is disposed in an HVAC (Heating, ventilation and Air outdoor heat exchanger 2 installing) assembly 15 with the aforementioned interior heat exchanger 152 and evaporator 153. Therefore, the air heating PTC17, the internal heat exchanger 152 and the evaporator 153 are integrated in the HVAC assembly 15, the integration level of parts can be improved, and the whole vehicle arrangement is facilitated.
The battery heat exchange circuit of the present embodiment comprises a heat sink 1, a heat exchange pump 6 and a battery 7 connected by a heat exchange line 32. Wherein, in the battery heat exchange loop, still be equipped with check valve 8, this check valve 8 is located one side of battery 7 specifically for control coolant liquid's flow direction prevents the backward flow of coolant liquid.
And as a preferred embodiment, the battery heat exchange loop further comprises a motor heat dissipation module 5 connected in parallel in the heat exchange pipeline 32, and the motor heat dissipation module 5 is connected in series with the motor heat dissipation pump 4. From this for the coolant liquid flows through motor heat dissipation module 5 to can carry out cooling to motor heat dissipation module 5, simultaneously, motor heat dissipation module 5's heat is taken away by the coolant liquid, can transmit to the refrigerant through heat exchanger 9, thereby but make full use of the heat production of motor 7 during operation, reach the effect that reduces the heating energy consumption.
It should be noted that the motor heat dissipation module 5 may adopt a structure in the prior art, and the motor heat dissipation module 5 includes a module connected to an outlet of the motor heat dissipation pump 4 and having a vehicle-mounted charger, a distribution box and a power converter, and a multi-domain controller module and a motor sequentially connected in series with the module.
In addition, in the present embodiment, a bypass line 39 is connected in parallel to the battery heat exchange circuit, and the bypass line 39 is provided with a bypass electronic expansion valve 19, so that whether the bypass line 39 is conducted or not can be controlled by opening or closing the bypass electronic expansion valve 19.
In addition, as a preferable arrangement form of the present embodiment, in the present embodiment, a water overflow tank 14 is provided in the battery heat exchange circuit.
To improve the heat exchange effect, the CO of the embodiment 2 The heat pump air-conditioning system also comprises a heat radiation fan 3, and the radiator 1 and the outdoor heat exchanger 2 are sequentially arranged on the air suction side of the heat radiation fan 3, so that heat exchange is favorably carried out on the air flow near the outdoor heat exchanger 2 and the radiator 1.
CO of the example 2 The heat pump air-conditioning system can realize various vehicle heat management modes in the vehicle work by controlling the opening and closing of each electronic expansion valve and each electronic control stop valve. Each thermal management mode is specifically described below.
Dual cooling management mode of battery 7 and passenger compartment:
when the battery 7 needs active cooling and the passenger compartment needs refrigeration, the cooling is carried out through the outdoor heat exchanger 2The heat exchanger 9 and the evaporator 153 perform evaporation and heat absorption. At this time, the refrigerant flows: compressor 12 → four-way selector valve 11 (a-b) → outdoor heat exchanger 2 → CO 2 Gas-liquid separator 13 → (second electronic expansion valve 60 → heat exchanger 9, third electronic expansion valve 70 → evaporator 153 → internal heat exchanger 152 → four-way selector valve 11 (c-d)) → CO 2 Gas-liquid separator 13 → compressor 12.
Battery 7 cooling and passenger compartment heating management mode:
when the battery 7 needs active cooling and the passenger compartment needs heating, the internal heat exchanger 152 is used for condensation, and the heat exchanger 9 is used for evaporation and heat absorption. At this time, the refrigerant flows: compressor 12 → four-way selector valve 11 (a-c) → internal heat exchanger 152 → third electronic expansion valve 70 → evaporator 153 → (third electronically controlled shutoff valve 30 → second electronic expansion valve 60 → heat exchanger 9 → fourth electronically controlled shutoff valve 40, third electronic expansion valve 70 → CO 2 Gas-liquid separator 13 → outdoor heat exchanger 2 → four-way reversing valve 11 (b-d)) → CO 2 Gas-liquid separator 13 → compressor 12.
Battery 7 heating and passenger compartment dehumidification management mode:
when the battery 7 needs active heating and the passenger compartment needs dehumidification, the internal heat exchanger 152 and the heat exchanger 9 are connected in parallel for condensation, the evaporator 153 is used for dehumidifying the passenger compartment, and the outdoor heat exchanger 2 is used together for evaporation and heat absorption. At this time, the refrigerant flows to: compressor 12 → four-way selector valve 11 (a-c) → internal heat exchanger 152 → (first electronically controlled shutoff valve 10 → heat exchanger 9 → second electronically controlled expansion valve 60 → second electronically controlled shutoff valve 20, first electronically controlled expansion valve 50 → evaporator 153 → third electronically controlled expansion valve 70) → CO 2 Gas-liquid separator 13 → outdoor heat exchanger 2 → four-way reversing valve 11 (b-d)) → CO 2 Gas-liquid separator 13 → compressor 12.
Under low temperature environment, battery 7 and passenger compartment dual heating management mode:
when the battery 7 needs to be actively heated and the passenger compartment needs to be heated, the passenger compartment is heated by the internal heat exchanger 152, the battery is heated by the heat exchanger 9, and the battery is evaporated and absorbs heat in the outdoor heat exchanger 2 by the second electronic expansion valve 60 and returns to the compressor. This is achieved byIn the meantime, the refrigerant flows: compressor 12 → four-way selector valve 11 (a-c) → internal heat exchanger 152 → first electronically controlled shutoff valve 10 → heat exchanger 9 → second electronically controlled expansion valve 60 → second electronically controlled shutoff valve 20 → CO 2 Gas-liquid separator 13 → outdoor heat exchanger 2 → four-way reversing valve 11 (b-d)) → CO 2 Gas-liquid separator 13 → compressor 12.
Under ultra-low temperature environment, battery 7 and passenger compartment dual heating management mode:
when the battery needs to be actively heated and the passenger compartment needs to be heated, the passenger compartment is heated by serially connecting the internal heat exchanger 152 and the evaporator 153, the opening degree of the second electronic expansion valve 60 is adjusted to heat the heat exchanger 9, the heated refrigerant directly returns to the low-pressure end and is combined with the air return end of the outdoor heat exchanger 2, the flow of the refrigerant at low temperature can be increased, and the refrigerant returns to the air suction port of the compressor. At this time, the refrigerant flows: compressor 12 → four-way selector valve 11 (a-c) → internal heat exchanger 152 → first electronic expansion valve 50 → evaporator 153 (third electronic control cut-off valve 30 → second electronic expansion valve 60 → heat exchanger 9 → fourth electronic control cut-off valve 40, third electronic expansion valve 70 → CO 2 Gas-liquid separator 13 → outdoor heat exchanger 2) → four-way reversing 11 (b-d) → compressor 12.
The present embodiment relates to a CO 2 The heat pump air conditioning system not only can realize direct active heating of the battery by utilizing the refrigerant, but also can realize the dehumidification function of the passenger compartment when the battery is actively heated by utilizing the refrigerant, thereby improving the use feeling.
Example two
The present embodiment relates to a vehicle having a CO as described in the first embodiment 2 A heat pump air conditioning system.
CO of the embodiment is used for vehicle passing 2 The heat pump air conditioning system is beneficial to improving the service performance of the vehicle and has good use effect.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. CO (carbon monoxide) 2 The heat pump air conditioning system is characterized in that:
the system comprises a refrigerant loop and a battery heat exchange loop;
the refrigerant loop is internally provided with a compressor (12), an outdoor heat exchanger (2), an indoor heat exchanger and CO 2 A gas-liquid separator (13);
a radiator (1), a heat exchange pump (6) and a battery (7) are arranged in the battery heat exchange loop;
wherein the content of the first and second substances,
the indoor heat exchanger comprises an internal heat exchanger (152) and an evaporator (153) which are connected in series through a first refrigerant pipeline (41), and a heat exchanger (9) used for exchanging heat between the refrigerant loop and the battery heat exchange loop is arranged between the refrigerant loop and the battery heat exchange loop;
the cooling liquid side of the heat exchanger (9) is connected in parallel in the battery heat exchange loop, one end of the refrigerant side of the heat exchanger (9) is connected in parallel on the first refrigerant pipeline (41) through a second refrigerant pipeline (42), a first electric control stop valve (10) is arranged on the second refrigerant pipeline (42), and the other end of the refrigerant side of the heat exchanger (9) is connected in parallel with the evaporator (153) and the CO through a third refrigerant pipeline (43) 2 And a second electric control stop valve (20) is arranged between the gas-liquid separator (13) and on the third refrigerant pipeline (43).
2. CO according to claim 1 2 The heat pump air conditioning system is characterized in that:
and the air heating PTC (17) is arranged on one side of the indoor heat exchanger, and the air heating PTC (17) is arranged on one side of the indoor heat exchanger.
3. CO according to claim 1 2 The heat pump air conditioning system is characterized in that:
the battery heat exchange loop also comprises a motor heat dissipation module (5) connected in parallel in the heat exchange pipeline, and the motor heat dissipation module (5) is connected with a motor heat dissipation pump (4) in series; and/or the presence of a gas in the gas,
the battery heat exchange loop comprises a bypass pipeline (39) connected in parallel in the heat exchange pipeline, and a bypass electromagnetic valve (19) is arranged on the bypass pipeline (39).
4. CO according to claim 1 2 The heat pump air conditioning system is characterized in that:
a one-way valve (8) positioned at one side of the battery (7) is arranged in the battery heat exchange loop, and/or a water overflow tank (14) is arranged in the battery heat exchange loop.
5. CO according to claim 1 2 The heat pump air conditioning system is characterized in that:
the outdoor heat exchanger is characterized by further comprising a heat radiation fan (3), and the heat radiator (1) and the outdoor heat exchanger (2) are sequentially arranged on the air suction side of the heat radiation fan (3).
6. CO according to any one of claims 1 to 5 2 The heat pump air conditioning system is characterized in that:
the outlet of the compressor (12) is connected with a four-way reversing valve (11), the four-way reversing valve (11) is respectively connected with the internal heat exchanger (152) through a fourth refrigerant pipeline (44), connected with one end of the outdoor heat exchanger (2) through a fifth refrigerant pipeline (45) and connected with the inlet of the compressor (12) through a sixth refrigerant pipeline (46);
the other end of the outdoor heat exchanger (2) is connected with the evaporator (153) through a seventh refrigerant line (47), and the sixth refrigerant line (46) and the seventh refrigerant line (47) pass through the CO 2 A gas-liquid separator (13), the third refrigerant line (43) being connected in parallel to the seventh refrigerant line (47).
7. CO according to claim 6 2 The heat pump air conditioning system is characterized in that:
a first electronic expansion valve (50) is arranged on the first refrigerant pipeline (41) and is positioned between the connection point of the second refrigerant pipeline (42) and the evaporator (153);
and a second electronic expansion valve (60) positioned between the heat exchanger (9) and the second electronic control stop valve (20) is arranged on the third refrigerant pipeline (43).
8. CO according to claim 7 2 The heat pump air conditioning system is characterized in that:
a third electronic expansion valve (70) is arranged on the seventh refrigerant pipeline (47), and the third electronic expansion valve (70) is positioned between the connection points of the evaporator (153) and the third refrigerant pipeline (43);
an eighth refrigerant pipeline (48) is connected between the third refrigerant pipeline (43) and the seventh refrigerant pipeline (47) in parallel, one end of the eighth refrigerant pipeline (48) is connected between the evaporator (153) and the third electronic expansion valve (70), the other end of the eighth refrigerant pipeline (48) is connected between the second electronic expansion valve (60) and the second electronic control stop valve (20), and a third electronic control stop valve (30) is arranged on the eighth refrigerant pipeline (48).
9. CO according to claim 8 2 The heat pump air conditioning system is characterized in that:
a ninth refrigerant pipeline (49) is connected in parallel between the second refrigerant pipeline (42) and the sixth refrigerant pipeline (46), one end of the ninth refrigerant pipeline (49) is connected between the first electrically controlled stop valve (10) and the heat exchanger (9), and the other end of the ninth refrigerant pipeline (49) is connected between the four-way reversing valve (11) and the CO 2 A fourth electric control stop valve (40) is arranged between the gas-liquid separator (13) and on the ninth refrigerant pipeline (49).
10. A vehicle, characterized in that:
in which vehicle is provided a CO according to any one of claims 1 to 9 2 A heat pump air conditioning system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222316603.5U CN218519495U (en) | 2022-08-31 | 2022-08-31 | CO 2 Heat pump air conditioning system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222316603.5U CN218519495U (en) | 2022-08-31 | 2022-08-31 | CO 2 Heat pump air conditioning system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218519495U true CN218519495U (en) | 2023-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222316603.5U Active CN218519495U (en) | 2022-08-31 | 2022-08-31 | CO 2 Heat pump air conditioning system and vehicle |
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| Country | Link |
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| CN (1) | CN218519495U (en) |
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2022
- 2022-08-31 CN CN202222316603.5U patent/CN218519495U/en active Active
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