CN210821747U - Heat dissipation loop of automobile heat pump air conditioner and air conditioning system thereof - Google Patents
Heat dissipation loop of automobile heat pump air conditioner and air conditioning system thereof Download PDFInfo
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- CN210821747U CN210821747U CN201921767842.4U CN201921767842U CN210821747U CN 210821747 U CN210821747 U CN 210821747U CN 201921767842 U CN201921767842 U CN 201921767842U CN 210821747 U CN210821747 U CN 210821747U
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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Abstract
The utility model relates to a heat dissipation loop and air conditioning system of vehicle heat pump air conditioner belongs to vehicle heat pump air conditioner field. The heat dissipation loop comprises an external condenser and a waste heat recoverer, wherein a refrigerant inlet pipe and a refrigerant outlet pipe are arranged on the external condenser, the waste heat recoverer is connected with the external condenser in parallel, an auxiliary refrigerant inlet is arranged on the external condenser, and the auxiliary refrigerant inlet is communicated with the waste heat recoverer through an auxiliary pipeline; still relate to an automobile heat pump air conditioning system, include as above any one the automobile heat pump air conditioning heat dissipation return circuit, still include evaporimeter, vapour and liquid separator, compressor and the water cooled condenser that communicates in proper order, the refrigerant advances the pipe with the water cooled condenser intercommunication, the refrigerant exit tube communicate in the evaporimeter. The utility model discloses in, waste heat recoverer can regard as the condenser to use, has reduced external condenser's heat load, has improved air conditioning system's refrigeration performance.
Description
Technical Field
The utility model belongs to the automobile heat pump air conditioner field relates to an automobile heat pump air conditioning system's heat dissipation return circuit.
Background
As shown in fig. 1, in a conventional heat pump air conditioning system for an automobile, high-temperature and high-pressure refrigerant gas is discharged from a compressor 19, passes through a water-cooled condenser 20, enters an external condenser 1 through a refrigerant inlet pipe 3, is condensed into liquid refrigerant, and is discharged through a refrigerant outlet pipe 4. The liquid refrigerant absorbs heat at the evaporator 17 and the battery cooler 15 and evaporates into a gas state, and the gas refrigerant enters the compressor 19 after passing through the gas-liquid separator 18, so that a complete refrigerant circulation loop of the air conditioning system is formed. The waste heat recoverer 2 is usually used as an evaporator in winter, does not participate in heat exchange during refrigeration in summer, is high in refrigeration requirement in summer, is large in heat load, and often causes the high-pressure end pressure of an air conditioning system to be higher due to the fact that the heat load of the external condenser 1 is too heavy, so that the working stability of the air conditioning system is poor, and the service life of the air conditioning system is greatly reduced. Meanwhile, the fluctuation of the rotating speed of the compressor is large, so that the power consumption of the compressor is greatly increased, and the endurance mileage of the automobile is reduced.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the present invention is to provide a heat dissipation loop of an automotive heat pump air conditioning system, which enables a waste heat recovery device to dissipate heat in a refrigeration cycle, thereby reducing the heat load of external condensation.
In order to achieve the above purpose, the utility model provides a following technical scheme: a heat dissipation loop of an automobile heat pump air conditioner comprises an external condenser and a waste heat recoverer, wherein a refrigerant inlet pipe and a refrigerant outlet pipe are arranged on the external condenser, the waste heat recoverer is connected with the external condenser in parallel, and two ends of the waste heat recoverer are respectively communicated with the refrigerant inlet pipe and the refrigerant outlet pipe; the waste heat recoverer is characterized in that an auxiliary pipeline is further arranged at one end, connected with the refrigerant outlet pipe, of the waste heat recoverer, an auxiliary refrigerant inlet is formed in the external condenser, and the auxiliary refrigerant inlet is communicated with the waste heat recoverer through the auxiliary pipeline.
Optionally, a full-circulation electronic expansion valve is arranged between the waste heat recoverer and the refrigerant inlet pipe.
Optionally, a first solenoid valve is disposed on the auxiliary conduit.
Optionally, a second electromagnetic valve is arranged between the waste heat recoverer and the refrigerant outlet pipe.
Optionally, a first temperature sensor is further disposed on the refrigerant inlet pipe.
Optionally, the waste heat recovery device further comprises a heat exchange loop, and the waste heat recovery device is connected in series in the heat exchange loop.
Optionally, the heat exchange loop comprises a radiator, a high-voltage distribution box, a driving motor and a water pump which are sequentially and circularly communicated, and the waste heat recoverer is arranged between the radiator and the water pump.
Optionally, a second temperature sensor is disposed between the water pump and the driving motor.
Optionally, the external condenser is disposed in an air flow range generated by the fan.
Optionally, the first solenoid valve, the second solenoid valve, the first temperature sensor, the second temperature sensor, the water pump, the fan and the stop expansion valve all adopt external power supplies.
The automobile heat pump air-conditioning system comprises an evaporator, a gas-liquid separator, a compressor and a water-cooled condenser, and is applied to the automobile heat pump air-conditioning heat dissipation loop, wherein the automobile heat pump air-conditioning heat dissipation loop, the evaporator, the gas-liquid separator, the compressor and the water-cooled condenser are sequentially communicated in a circulating manner, a refrigerant inlet pipe of the automobile heat pump air-conditioning heat dissipation loop is communicated with the water-cooled condenser, and a refrigerant outlet pipe of the automobile heat pump air-conditioning heat dissipation loop is communicated with the evaporator. Optionally, the compressor employs an external power supply.
The beneficial effects of the utility model reside in that: the waste heat recoverer is communicated with the external condenser through the auxiliary pipeline and is used as the condenser, so that the heat load of the external condenser is reduced, the refrigeration performance of an air conditioning system is improved, and the utilization rate of equipment on an automobile is improved; meanwhile, the pressure of the high-pressure end of the air-conditioning system is reduced, the stability of the air-conditioning system is improved, and the service life of the air-conditioning system is prolonged; meanwhile, the rotating speed of the compressor is stable, the power consumption of the air conditioning system is reduced, and the endurance mileage of the automobile is effectively improved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.
Drawings
For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of a conventional automotive heat pump air conditioning system;
FIG. 2 is a schematic diagram of a heat pump air conditioning system of an automobile according to the present embodiment;
fig. 3 is a schematic diagram of a refrigerant flow path in the heat dissipation circuit in this embodiment.
Reference numerals: the system comprises an external condenser 1, a waste heat recoverer 2, a refrigerant inlet pipe 3, a refrigerant outlet pipe 4, an auxiliary pipeline 5, an auxiliary refrigerant inlet 6, a full-circulation electronic expansion valve 7, a first electromagnetic valve 8, a second electromagnetic valve 9, a first temperature sensor 10, a radiator 11, a high-voltage distribution box 12, a driving motor 13, a water pump 14, a battery cooler 15, a fan 16, an evaporator 17, a gas-liquid separator 18, a compressor 19 and a water-cooled condenser 20.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 2 to 3, an automotive heat pump air conditioning system includes an evaporator 17, a gas-liquid separator 18, a compressor 19, a water-cooled condenser 20, and an automotive heat pump air conditioning heat dissipation loop, wherein the automotive heat pump air conditioning heat dissipation loop is sequentially and circularly communicated with the evaporator 17, the gas-liquid separator 18, the compressor 19, and the water-cooled condenser 20. The heat dissipation loop of the automobile heat pump air conditioner comprises an external condenser 1 and a waste heat recoverer 2, wherein a refrigerant inlet pipe 3 and a refrigerant outlet pipe 4 are arranged on the external condenser 1, the waste heat recoverer 2 is connected with the external condenser 1 in parallel, and two ends of the waste heat recoverer 2 are respectively communicated with the refrigerant inlet pipe 3 and the refrigerant outlet pipe 4; an auxiliary pipeline 5 is further arranged at one end, connected with a refrigerant outlet pipe 4, of the waste heat recoverer 2, an auxiliary refrigerant inlet 6 is arranged on the external condenser 1, the auxiliary refrigerant inlet 6 is communicated with the waste heat recoverer 2 through the auxiliary pipeline 5, the refrigerant inlet pipe 3 is communicated with the water-cooled condenser 20, and the refrigerant outlet pipe 4 is communicated with the evaporator 17.
In this embodiment, a full-flow electronic expansion valve 7 is disposed between the waste heat recoverer 2 and the refrigerant inlet pipe 3. The auxiliary conduit 5 is provided with a first solenoid valve 8. A second electromagnetic valve 9 is arranged between the waste heat recoverer 2 and the refrigerant outlet pipe 4. The refrigerant inlet pipe 3 is also provided with a first temperature sensor 10. The waste heat recovery device is characterized by further comprising a heat exchange loop, and the waste heat recovery device 2 is connected in series in the heat exchange loop. The heat exchange loop comprises a radiator 11, a high-voltage distribution box 12, a driving motor 13 and a water pump 14 which are sequentially communicated, and the waste heat recoverer 2 is arranged between the radiator 11 and the water pump 14. A second temperature sensor is arranged between the water pump 14 and the drive motor 13. The external condenser 1 is arranged in the range of air flow generated by the fan 16, and the radiator 11 is arranged in the range of air flow generated by the fan 16. Also included in this embodiment is a battery cooler 15, the battery cooler 15 being connected in parallel with the evaporator 17. The first electromagnetic valve 8, the second electromagnetic valve 9, the first temperature sensor 10, the second temperature sensor, the water pump 14, the fan 16 and the stop expansion valve all adopt external power supplies. The compressor 19 adopts an external power supply.
In actual use, the first temperature sensor 10 and the second temperature sensor detect the temperature of the refrigerant in the refrigerant inlet pipe 3 and the temperature of the cooling water in the driving motor 13, respectively. When the temperature of the refrigerant at the refrigerant inlet pipe 3 is not higher than the temperature of the cooling water at the driving motor 13 by 5 ℃, the full-circulation electronic expansion valve 7 is closed, the first electromagnetic valve 8 is closed, and the refrigerant circulates according to a path in the traditional air-conditioning system;
when the temperature of the refrigerant at the refrigerant inlet pipe 3 is 5 ℃ higher than that of the cooling water at the driving motor 13, the full-flow electronic expansion valve 7 is opened, and the first electromagnetic valve 8 is opened. The high-temperature and high-pressure gaseous refrigerant is discharged from the compressor 19, passes through the water-cooled condenser 20, and is divided into two parts. One part of the high-temperature and high-pressure gaseous refrigerant enters the water-cooled condenser 20, and the other part of the high-temperature and high-pressure gaseous refrigerant passes through the waste heat recoverer 2, exchanges heat with the cooling liquid in the heat exchange loop, and then flows into the external condenser 1 through the auxiliary pipeline 5 by the auxiliary pipeline 5. The high-temperature high-pressure gaseous refrigerant is cooled into a liquid refrigerant, the liquid refrigerant condensed by the external condenser 1 is divided into two parts, one part of the liquid refrigerant enters the evaporator 17, the other part of the liquid refrigerant passes through the battery cooler 15, and the refrigerant absorbs heat from the liquid state and evaporates into a gaseous state in the evaporator 14 and the battery cooler 15. The gaseous refrigerant enters a gas-liquid separator 18, is compressed by a compressor 19 to do work, becomes a high-temperature and high-pressure gaseous refrigerant, and enters a water-cooled condenser to form a complete refrigerant circulation loop of the air-conditioning system.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.
Claims (10)
1. The utility model provides an automobile heat pump air conditioner heat dissipation return circuit which characterized in that: the waste heat recovery device comprises an external condenser and a waste heat recovery device, wherein a refrigerant inlet pipe and a refrigerant outlet pipe are arranged on the external condenser, the waste heat recovery device is connected with the external condenser in parallel, and two ends of the waste heat recovery device are respectively communicated with the refrigerant inlet pipe and the refrigerant outlet pipe;
the waste heat recoverer is characterized in that an auxiliary pipeline is further arranged at one end, connected with the refrigerant outlet pipe, of the waste heat recoverer, an auxiliary refrigerant inlet is formed in the external condenser, and the auxiliary refrigerant inlet is communicated with the waste heat recoverer through the auxiliary pipeline.
2. The heat pump air conditioner heat dissipation loop of claim 1, wherein: and a full-circulation electronic expansion valve is arranged between the waste heat recoverer and the refrigerant inlet pipe.
3. The heat pump air conditioner heat dissipation loop of claim 1, wherein: and a first electromagnetic valve is arranged on the auxiliary pipeline.
4. The heat pump air conditioner heat dissipation loop of claim 1, wherein: and a second electromagnetic valve is arranged between the waste heat recoverer and the refrigerant outlet pipe.
5. The heat pump air conditioner heat dissipation loop of claim 1, wherein: and a first temperature sensor is also arranged on the refrigerant inlet pipe.
6. The heat pump air conditioner heat dissipation loop of claim 1, wherein: the waste heat recovery device is characterized by further comprising a heat exchange loop, and the waste heat recovery device is connected in series in the heat exchange loop.
7. The heat pump air conditioner heat dissipation loop of claim 6, wherein: the heat exchange loop comprises a radiator, a high-voltage distribution box, a driving motor and a water pump which are sequentially and circularly communicated, and the waste heat recoverer is arranged between the radiator and the water pump.
8. The heat pump air conditioner heat dissipation loop of claim 7, wherein: and a second temperature sensor is arranged between the water pump and the driving motor.
9. The heat pump air conditioner heat dissipation loop of claim 7, wherein: the radiator and the external condenser are both arranged in the range of air flow generated by the fan.
10. The utility model provides an automobile heat pump air conditioning system, includes evaporimeter, vapour and liquid separator, compressor and water-cooled condenser, its characterized in that: the heat-dissipating loop of the heat pump air conditioner as claimed in any one of claims 1 to 9, wherein the heat-dissipating loop of the heat pump air conditioner, the evaporator, the gas-liquid separator, the compressor and the water-cooled condenser are sequentially and circularly communicated, a refrigerant inlet pipe of the heat-dissipating loop of the heat pump air conditioner is communicated with the water-cooled condenser, and a refrigerant outlet pipe of the heat-dissipating loop of the heat pump air conditioner is communicated with the evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921767842.4U CN210821747U (en) | 2019-10-21 | 2019-10-21 | Heat dissipation loop of automobile heat pump air conditioner and air conditioning system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921767842.4U CN210821747U (en) | 2019-10-21 | 2019-10-21 | Heat dissipation loop of automobile heat pump air conditioner and air conditioning system thereof |
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| CN210821747U true CN210821747U (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921767842.4U Active CN210821747U (en) | 2019-10-21 | 2019-10-21 | Heat dissipation loop of automobile heat pump air conditioner and air conditioning system thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112277565A (en) * | 2020-10-30 | 2021-01-29 | 重庆长安新能源汽车科技有限公司 | High-efficiency heat pump air conditioning system |
| CN113479037A (en) * | 2021-08-19 | 2021-10-08 | 浙江吉利控股集团有限公司 | Integrated refrigerating device, vehicle-mounted air conditioning system and vehicle |
-
2019
- 2019-10-21 CN CN201921767842.4U patent/CN210821747U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112277565A (en) * | 2020-10-30 | 2021-01-29 | 重庆长安新能源汽车科技有限公司 | High-efficiency heat pump air conditioning system |
| CN113479037A (en) * | 2021-08-19 | 2021-10-08 | 浙江吉利控股集团有限公司 | Integrated refrigerating device, vehicle-mounted air conditioning system and vehicle |
| CN113479037B (en) * | 2021-08-19 | 2024-02-13 | 浙江吉利控股集团有限公司 | Integrated refrigeration device, vehicle-mounted air conditioning system and vehicle |
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