CN112606656A - Cooling device of hybrid electric vehicle and hybrid electric vehicle - Google Patents
Cooling device of hybrid electric vehicle and hybrid electric vehicle Download PDFInfo
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- CN112606656A CN112606656A CN202011529239.XA CN202011529239A CN112606656A CN 112606656 A CN112606656 A CN 112606656A CN 202011529239 A CN202011529239 A CN 202011529239A CN 112606656 A CN112606656 A CN 112606656A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B60H1/004—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for vehicles having a combustion engine and electric drive means, e.g. hybrid electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00321—Heat exchangers for air-conditioning devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00457—Ventilation unit, e.g. combined with a radiator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
Abstract
The present disclosure provides a cooling device for a hybrid vehicle and a hybrid vehicle, the cooling device including: a cooling fan; the first heat exchange module comprises an oil cooler and a condenser which are arranged on the same plane; the second heat exchange module comprises an engine radiator and a low-temperature radiator which are arranged on the same plane; in the axial of cooling fan's pivot, second heat exchange module with first heat exchange module is along keeping away from cooling fan's direction arranges side by side in proper order, the oil cooler with engine radiator is relative, the supercooling zone of condenser with low temperature radiator is relative. The cooling device of the hybrid electric vehicle can reduce the overall size of the cooling device of the hybrid electric vehicle on the premise of ensuring the heat exchange performance.
Description
Technical Field
The disclosure relates to the technical field of automobile cooling systems, in particular to a cooling device of a hybrid electric vehicle and the hybrid electric vehicle.
Background
A front cabin space of an automobile is generally installed with a cooling device to cool an engine of the automobile and a refrigerant of an air conditioner. A typical cooling apparatus for an automobile includes a condenser, an engine radiator, and a cooling fan, which are arranged side by side in this order in a flow direction of air. When the vehicle moves, cooling air flows through the condenser and the engine radiator in sequence to carry out heat exchange, the cooling air absorbs heat gradually in the process, the temperature of cooling media in the condenser and the engine radiator is increased, the temperature of the cooling media in the condenser and the engine radiator is reduced to meet the heat exchange requirement, and finally hot air with increased temperature is conveyed into the front cabin through the cooling fan. In recent years, hybrid vehicles have been developed rapidly, and hybrid transmissions and high and low voltage electric power converters have been added to hybrid vehicles, and therefore, it is necessary to add a low temperature radiator for cooling an oil cooler of the hybrid transmission and the high and low voltage electric power converters to a cooling device.
In the related art, the cooling device of the hybrid electric vehicle is additionally provided with the oil cooler and the low-temperature radiator on the basis of the traditional cooling device, the oil cooler and the low-temperature radiator are arranged on the same plane at intervals up and down and are combined into a layer of structure together, and along the flowing direction of air, the layer of structure formed by the oil cooler and the low-temperature radiator, the condenser, the engine radiator and the cooling fan are sequentially arranged side by side, namely the whole cooling device has a four-layer structure.
Because the oil cooler and the low-temperature radiator are added in the cooling device, the whole size of the cooling device is enlarged, the cooling device occupies larger front cabin space, and the arrangement of each part in the front cabin space is not facilitated; moreover, the heat exchange structures in the cooling device form a four-layer structure side by side, and the heat exchange performance can be influenced mutually, so that the performance of a cooling system and the performance of an air conditioning system of the whole vehicle are influenced.
Disclosure of Invention
The embodiment of the disclosure provides a cooling device of a hybrid electric vehicle and the hybrid electric vehicle, which can reduce the overall size of the cooling device of the hybrid electric vehicle on the premise of ensuring the heat exchange performance. The technical scheme is as follows:
the disclosed embodiment provides a cooling device of a hybrid electric vehicle, the cooling device includes: a cooling fan; the first heat exchange module comprises an oil cooler and a condenser which are arranged on the same plane; the second heat exchange module comprises an engine radiator and a low-temperature radiator which are arranged on the same plane; in the axial of cooling fan's pivot, second heat exchange module with first heat exchange module is along keeping away from cooling fan's direction arranges side by side in proper order, the oil cooler with engine radiator is relative, the supercooling zone of condenser with low temperature radiator is relative.
In one implementation of the disclosed embodiment, the oil cooler and the condenser are of an integral structure, and the engine radiator and the low-temperature radiator are of an integral structure.
In another implementation manner of the embodiment of the present disclosure, the first heat exchange module is a first heat exchanger, the first heat exchanger includes a first collecting pipe, a second collecting pipe and a plurality of first flat pipes arranged in parallel at intervals, two ends of each of the first flat pipes are respectively inserted into the first collecting pipe and the second collecting pipe and are communicated with the first collecting pipe and the second collecting pipe, partition plates for partitioning inner cavities are respectively disposed in the first collecting pipe and the second collecting pipe, each of the first collecting pipe includes a first oil cooling pipe section and a first condensing pipe section which are disposed on two sides of each of the partition plates, each of the second collecting pipe includes a second oil cooling pipe section and a second condensing pipe section which are disposed on two sides of each of the partition plates, the first oil cooling pipe section is opposite to the second oil cooling pipe section, the first condensing pipe section is opposite to the second condensing pipe section, and the first oil cooling pipe section is opposite to the second condensing pipe section, The second oil-cooled tube section and the first flat tube between the first oil-cooled tube section and the second oil-cooled tube section form the oil cooler, and the first condenser tube section, the second condenser tube section and the first flat tube between the first condenser tube section and the second condenser tube section form the condenser.
In another implementation manner of the embodiment of the present disclosure, the first heat exchanger further includes a drying bottle, the drying bottle is connected to the first condensation section or the second condensation section, a medium inlet of the drying bottle is communicated with the condensation area of the condenser, and a medium outlet of the drying bottle is communicated with the supercooling area of the condenser.
In another implementation manner of the embodiment of the present disclosure, the first header and the second header are both aluminum alloy tubes.
In another implementation manner of the embodiment of the disclosure, the second heat exchange module is a second heat exchanger, the second heat exchanger includes a third collecting pipe, a fourth collecting pipe and a plurality of second flat pipes arranged in parallel at intervals, two ends of the second flat pipe are respectively inserted into the third collecting pipe and the fourth collecting pipe and are communicated with the third collecting pipe and the fourth collecting pipe, a partition plate for partitioning an inner cavity is respectively disposed in the third collecting pipe and the fourth collecting pipe, the third collecting pipe includes a first engine heat dissipation pipe section and a first low-temperature heat dissipation pipe section which are located at two sides of the partition plate, the fourth collecting pipe includes a second engine heat dissipation pipe section and a second low-temperature heat dissipation pipe section which are located at two sides of the partition plate, the first engine heat dissipation pipe section is opposite to the second engine heat dissipation pipe section, and the first low-temperature heat dissipation pipe section is opposite to the second low-temperature heat dissipation pipe section, the first engine heat dissipation pipe section, the second engine heat dissipation pipe section, and the second flat pipe between the first engine heat dissipation pipe section and the second engine heat dissipation pipe section constitute the engine radiator, and the first low-temperature heat dissipation pipe section, the second low-temperature heat dissipation pipe section, and the second flat pipe between the first low-temperature heat dissipation pipe section and the second low-temperature heat dissipation pipe section constitute the low-temperature radiator.
In another implementation manner of the embodiment of the present disclosure, the third header and the fourth header are both plastic pipes.
In another implementation of the embodiment of the present disclosure, an orthographic projection of the low temperature radiator on a projection plane is located within an outline of an orthographic projection of the supercooling zone of the condenser on the projection plane, and the projection plane is perpendicular to a rotating shaft of the cooling fan.
In another implementation manner of the embodiment of the present disclosure, the cooling fan, the first heat exchange module, and the second heat exchange module are all provided with connection flanges, and the connection flange of the first heat exchange module and the connection flange of the cooling fan are respectively attached to two side surfaces of the connection flange of the second heat exchange module and fixed by bolts.
The embodiment of the present disclosure provides a hybrid electric vehicle including the cooling device described above.
The beneficial effects brought by the technical scheme provided by the embodiment of the disclosure at least comprise:
the embodiment of the disclosure provides a hybrid vehicle's cooling device only includes the triplex, be respectively along the axial of cooling fan's pivot first heat transfer module, second heat transfer module and the cooling fan that arranges side by side in proper order, wherein, first heat transfer module is including arranging oil cooler and the condenser on the coplanar, be about to oil cooler and condenser arrange together, constitute a layer structure jointly, second heat transfer module is including arranging engine radiator and the low temperature radiator on the coplanar, be about to engine radiator and low temperature radiator arrange together, constitute a layer structure jointly.
Like this through two double-phase combination's mode, with newly-increased oil cooler and low temperature radiator among the hybrid vehicle, rationally merge with original heat transfer structure integration in the cooling device, make cooling device still be three layer construction, and avoid with the oil cooler, the low temperature radiator directly piles up side by side on the cooling device in the correlation technique, and form four layers structure side by side, thereby reduce cooling device's overall dimension, because cooling device can not occupy too much front deck space, so also be convenient for the arrangement of each part in the front deck space.
Compared with an engine radiator and a low-temperature radiator in the second heat exchange module, the oil cooler and the condenser in the first heat exchange module generally need lower inlet air temperature, so that the first heat exchange module is arranged in front of the second heat exchange module, namely, the first heat exchange module exchanges heat with cooling air firstly, and the heat exchange effect of the oil cooler and the condenser is ensured; meanwhile, the low-temperature radiator generally needs lower inlet air temperature relative to an engine radiator, and therefore the low-temperature radiator is arranged at a position opposite to a supercooling zone of a condenser, and the temperature of cooling air passing through the supercooling zone of the condenser generally changes less, so that the cooling air passing through the supercooling zone is used as the cooling air of the low-temperature radiator, and the performance requirement of the low-temperature radiator can be better met.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic view of a cooling apparatus of an internal combustion engine type provided in the related art;
fig. 2 is a schematic view of a cooling apparatus of a hybrid vehicle provided in the related art;
fig. 3 is a schematic view of a cooling device of a hybrid vehicle according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a cooling device of a hybrid electric vehicle according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural diagram of a first heat exchange module provided in the embodiments of the present disclosure;
fig. 6 is a schematic structural diagram of a second heat exchange module provided in the embodiment of the present disclosure.
The various symbols in the figure are illustrated as follows:
1-a cooling fan;
2-a first heat exchange module, 21-an oil cooler, 22-a condenser, 220-a partition plate, 221-a condensation area, 222-an supercooling area, 223-a drying bottle, 2231-a medium inlet and 2232-a medium outlet;
3-a second heat exchange module, 31-an engine radiator and 32-a low-temperature radiator;
41-a first header, 411-a first oil-cooled tube section, 412-a second oil-cooled tube section, 413-an oil cooler inlet, 414-an oil cooler outlet, 42-a second header, 421-a first condenser tube section, 422-a second condenser tube section, 423-a condenser inlet, 424-a condenser outlet, 43-a third header, 431-a first engine heat dissipation tube section, 432-a second engine heat dissipation tube section, 433-an engine radiator inlet, 434-an engine radiator outlet, 44-a fourth header, 441-a first low-temperature heat dissipation tube section, 442-a second low-temperature heat dissipation tube section, 443-a low-temperature radiator inlet, 444-a low-temperature radiator outlet, 451-a first flat tube, 452-a second flat tube, 46-a partition plate, 47-a connecting flange.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," "third," and similar terms in the description and claims of the present disclosure are not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", "top", "bottom", and the like are used merely to indicate relative positional relationships, which may also change accordingly when the absolute position of the object being described changes.
Fig. 1 is a schematic diagram of a cooling apparatus of an internal combustion engine vehicle type provided in the related art. As shown in fig. 1, the cooling device includes a condenser 22, an engine radiator 31, and a cooling fan 1, which constitute a three-layer structure. Fig. 2 is a schematic diagram of a cooling apparatus of a hybrid vehicle according to the related art. Fig. 2 is a view of fig. 1 with the addition of an oil cooler 21 and a low-temperature radiator 32. As shown in fig. 2, the cooling apparatus includes a condenser 22, an engine radiator 31, a cooling fan 1, an oil cooler 21, and a low-temperature radiator 32, the oil cooler 21 and the low-temperature radiator 32 being arranged in a first row, the oil cooler 21 being arranged above and the low-temperature radiator 32 being arranged below, the condenser 22 being arranged in a second row, the radiator being arranged in a third row, and the cooling fan 1 being arranged in a fourth row, in the cooling air intake direction.
That is, the entire cooling device has a four-layer structure, which undoubtedly increases the overall thickness of the cooling device, and the oil cooler 21 and the low-temperature radiator 32 need to be fixed to the engine radiator 31, which adds a new fixing bracket or other fixing structure, making the structure of the cooling device more complicated.
After entering, the cooling air passes through the oil cooler 21 and the low-temperature radiator 32 on the same plane in the first row, that is, the cooling air passes through the oil cooler 21 and the low-temperature radiator 32 at the same time, passes through the condenser 22 in the second row, passes through the engine radiator 31 in the third row, and finally flows into the front cabin through the cooling fan 1. Due to the addition of the two heat exchange structures, the wind resistance of the whole cooling device is increased, and smooth circulation of cooling air becomes difficult, which requires a cooling fan 1 with a larger wind volume.
Moreover, the temperature of the intake air of the condenser 22 is usually required to be less than 40 ℃, but the oil cooler 21 and the low-temperature radiator 32 are arranged in front of the condenser 22, and the temperature of the cooling air passing through the oil cooler 21 and the low-temperature radiator 32 can rise, generally 10 ℃ to 15 ℃, so that the temperature of the intake air of the condenser 22 cannot be met, the heat exchange performance of the condenser 22 is reduced, and the heat exchange performance of the engine radiator 31 in the third row can also be influenced.
The embodiment of the disclosure provides a cooling device of a hybrid electric vehicle. Fig. 3 is a schematic diagram of a cooling device of a hybrid vehicle according to an embodiment of the present disclosure. As shown in fig. 3, the cooling device includes: cooling fan 1, first heat exchange module 2 and second heat exchange module 3.
Fig. 4 is a schematic structural diagram of a cooling device of a hybrid vehicle according to an embodiment of the present disclosure. As shown in fig. 3 and 4, the first heat exchange module 2 includes an oil cooler 21 and a condenser 22 arranged on the same plane.
As shown in fig. 3 and 4, the second heat exchange module 3 includes an engine radiator 31 and a low temperature radiator 32 arranged on the same plane.
As shown in fig. 3, the first heat exchange module 2, the second heat exchange module 3, and the cooling fan 1 are arranged side by side in this order in the axial direction of the rotating shaft of the cooling fan 1, with the oil cooler 21 being opposed to the engine radiator 31, and the supercooling region 222 of the condenser 22 being opposed to the low temperature radiator 32.
The cooling device of the hybrid electric vehicle provided by the embodiment of the present disclosure includes only three parts, namely, a first heat exchange module 2, a second heat exchange module 3 and a cooling fan 1, which are sequentially arranged side by side along the axial direction of a rotating shaft of the cooling fan 1, wherein the first heat exchange module 2 includes an oil cooler 21 and a condenser 22 arranged on the same plane, that is, the oil cooler 21 and the condenser 22 are integrated together, and the second heat exchange module 3 includes an engine radiator 31 and a low temperature radiator 32 arranged on the same plane, that is, the engine radiator 31 and the low temperature radiator 32 are integrated together.
Like this through two double-phase mode of making up, newly-increased oil cooler 21 and low temperature radiator 32 in with hybrid vehicle, rationally merge with the integration of original heat transfer structure in the cooling device, make cooling device still be three layer construction, and avoid with oil cooler 21, low temperature radiator 32 directly piles up side by side on the cooling device in the correlation technique, and form four layers structure side by side, thereby reduce cooling device's overall dimension, and simplify cooling device's connected mode, because cooling device can not occupy too much front deck space, so also be convenient for the arrangement of each part in the front deck space.
Moreover, compared with the engine radiator 31 and the low-temperature radiator 32 in the second heat exchange module 3, the oil cooler 21 and the condenser 22 in the first heat exchange module 2 generally need lower inlet air temperature, so that the first heat exchange module 2 is arranged in front of the second heat exchange module 3, that is, the first heat exchange module 2 exchanges heat with cooling air firstly, and thus the heat exchange effect of the oil cooler 21 and the condenser 22 is ensured; meanwhile, the low-temperature radiator 32 generally needs a lower intake air temperature relative to the engine radiator 31, and therefore, the low-temperature radiator 32 is disposed at a position opposite to the supercooling region 222 of the condenser 22, and since the temperature of the cooling air passing through the supercooling region 222 of the condenser 22 generally changes relatively low, the cooling air passing through the supercooling region 222 is used as the cooling air of the low-temperature radiator 32, so that the performance requirement of the low-temperature radiator 32 can be better met.
Alternatively, as shown in fig. 3 and 4, the oil cooler 21 and the condenser 22, the engine radiator 31, and the low-temperature radiator 32 are all of an integral structure.
That is, the first heat exchange module 2 integrating the oil cooler 21 and the condenser 22 is of an integral structure, so that the oil cooler 21 and the condenser 22 are not required to be mounted together by any fastening structure or fixing bracket, that is, the assembly mode of the oil cooler 21 and the condenser 22 is simplified, and the structure of the cooling device is simpler. The second heat exchange module 3 integrating the engine radiator 31 and the low-temperature radiator 32 is also of an integral structure, so that the engine radiator 31 and the low-temperature radiator 32 are not required to be mounted together by any fastening structure or fixing bracket, that is, the assembly mode of the engine radiator 31 and the low-temperature radiator 32 is simplified, and the structure of the cooling device is simpler.
Fig. 5 is a schematic structural diagram of a first heat exchange module provided in an embodiment of the present disclosure. As shown in fig. 5, the first heat exchange module 2 is a first heat exchanger, the first heat exchanger includes a first collecting pipe 41, a second collecting pipe 42 and a plurality of first flat pipes 451 arranged in parallel at intervals, two ends of the first flat pipes 451 are respectively inserted into the first collecting pipe 41 and the second collecting pipe 42 and are communicated with the first collecting pipe 41 and the second collecting pipe 42.
As shown in fig. 5, a partition plate 46 for partitioning the inner cavity is disposed in each of the first header 41 and the second header 42, the first header 41 includes a first oil-cooled tube segment 411 and a first condensation tube segment 421 located on two sides of the partition plate 46, the second header 42 includes a second oil-cooled tube segment 412 and a second condensation tube segment 422 located on two sides of the partition plate 46, the first oil-cooled tube segment 411 is opposite to the second oil-cooled tube segment 412, and the first condensation tube segment 421 is opposite to the second condensation tube segment 422.
The oil cooler 21 is composed of the first oil cooling pipe section 411, the second oil cooling pipe section 412, and a first flat pipe 451 between the first oil cooling pipe section 411 and the second oil cooling pipe section 412, and the condenser 22 is composed of the first flat pipe 451 between the first condensing pipe section 421 and the second condensing pipe section 422, and between the first condensing pipe section 421 and the second condensing pipe section 422.
In the embodiment of the present disclosure, the first oil-cooling pipe section 411 is provided with an oil cooler inlet 413, and the second oil-cooling pipe section 412 is provided with an oil cooler outlet 414, that is, the oil cooler inlet 413 is used for introducing a cooling medium into the oil cooler 21, when the cooling air passes through a gap between the first flat pipes 451 arranged in parallel, the cooling air can exchange heat with the cooling medium in the first flat pipes 451 to realize heat dissipation, and the cooling medium flows out from the oil cooler outlet 414 after heat dissipation.
The first condenser pipe section 421 is provided with a condenser inlet 423 and a condenser outlet 424 which are arranged at intervals, and a partition plate is further arranged between the condenser inlet 423 and the condenser outlet 424 of the first condenser pipe section 421, so that a cooling medium is prevented from directly flowing from the condenser inlet 423 to the condenser outlet 424 in the first condenser pipe section 421, and the cooling medium is ensured to realize heat exchange through the first flat pipe 451. Thus, the condenser inlet 423 and the condenser outlet 424 are arranged in the same header section, which enables the flow path of the cooling medium in the heat exchanger to be longer, i.e., the heat exchange time of the cooling medium is increased, thereby improving the heat exchange effect, and being suitable for the heat exchange structure of the condenser 22 with higher heat exchange requirement.
As shown in fig. 5, partition plates 220 are disposed in the first condensation section 421 and the second condensation section 422, and are used for separating the inner cavities of the first condensation section 421 and the second condensation section 422.
As shown in fig. 5, the portions of the first and second condensation pipe sections 421 and 422 above the partition plate 220 and the first flat pipe 451 connecting the portions constitute the condensation zone 221. The portion of the first condensation section 421 and the second condensation section 422 below the partition 220 and the first flat tube 451 connecting the portion are formed as the supercooling section 222, and the drying bottle 223 is connected to the second condensation section 422, but in other implementations, the drying bottle 223 may be connected to the first condensation section 421. During operation, a gaseous cooling medium (for example, a cooling medium at 90 ℃) with a higher temperature enters the condensation area 221 through the condenser inlet 423, the gaseous cooling medium exchanges heat through the first flat pipe 451, the gaseous cooling medium is partially liquefied, that is, the cooling medium in the condensation area 221 is a gas-liquid mixture after heat exchange, then the cooling medium enters the drying bottle 223 through the medium inlet 2231 on the second condensation pipe section 422, gas-liquid separation is achieved in the drying bottle 223, the liquid cooling medium is liquefied after heat release, that is, the temperature of the liquid cooling medium is lower (for example, 45 ℃), the liquid cooling medium in the drying bottle 223 flows into the cooling area 222 through the medium outlet 2232, the liquid cooling medium continues to exchange heat in the supercooling area 222, and after heat exchange, the liquid cooling medium flows out from the condenser outlet 424. The temperature of the cooling medium in the supercooling region 222 is lower than the saturation temperature of the cooling medium, and thus is referred to as the supercooling region 222. Meanwhile, since the temperature of the cooling medium in the supercooling region 222 is lower, the temperature of the cooling air changes less after the cooling air flowing through the condenser 22 exchanges heat with the cooling medium in the supercooling region 222, compared to the condensation region 221.
Because the inlet air temperature of the oil cooler 21 is generally not required to be higher than 40 ℃, the inlet air temperature of the condenser 22, particularly the supercooling zone 222, is generally not required to be higher than 40 ℃, the oil cooler 21 and the condenser 22 are integrated into a first heat exchanger, the adaptability of the first heat exchanger and the first heat exchanger is better, the heat exchange structures cannot mutually influence the heat exchange performance, and the cooling system performance and the air conditioning system performance of the whole vehicle are ensured.
Optionally, the first header 41 and the second header 42 are both aluminum alloy tubes.
As shown in fig. 5, the first heat exchanger integrates the oil cooler 21 and the condenser 22, and is divided into two parts according to performance requirements, wherein the upper part is the oil cooler 21 for cooling the hybrid transmission, the cooling medium flowing through the first heat exchanger is transmission oil, the working pressure is 0.6Mpa, the lower part is the condenser 22 for heat exchange of the air conditioning system, the cooling medium flowing through the first heat exchanger is refrigerant R134a, the working pressure is 2Mpa, and the supercooling zone 222 of the condenser 22 is arranged at the lowest part. That is, the working pressure in the first heat exchanger is higher, so that the reliability of the first heat exchanger can be improved by manufacturing the first collecting pipe 41 and the second collecting pipe 42 by using aluminum alloy.
Fig. 6 is a schematic structural diagram of a second heat exchange module provided in the embodiment of the present disclosure. As shown in fig. 6, the second heat exchange module 3 is a second heat exchanger, the second heat exchanger includes a third collecting pipe 43, a fourth collecting pipe 44 and a plurality of second flat pipes 452 arranged in parallel at intervals, two ends of each second flat pipe 452 are respectively inserted into the third collecting pipe 43 and the fourth collecting pipe 44, and are communicated with the third collecting pipe 43 and the fourth collecting pipe 44.
As shown in fig. 6, a partition plate 46 for partitioning the inner cavity is disposed in each of the third header 43 and the fourth header 44, the third header 43 includes a first engine heat dissipation section 431 and a first low-temperature heat dissipation section 441 located on both sides of the partition plate 46, the fourth header 44 includes a second engine heat dissipation section 432 and a second low-temperature heat dissipation section 442 located on both sides of the partition plate 46, the first engine heat dissipation section 431 is opposite to the second engine heat dissipation section 432, and the first low-temperature heat dissipation section 441 is opposite to the second low-temperature heat dissipation section 442.
The first engine heat dissipation pipe section 431, the second engine heat dissipation pipe section 432 and a second flat pipe 452 between the first engine heat dissipation pipe section 431 and the second engine heat dissipation pipe section 432 form the engine radiator 31, and the first low-temperature heat dissipation pipe section 441, the second low-temperature heat dissipation pipe section 442 and a second flat pipe 452 between the first low-temperature heat dissipation pipe section 441 and the second low-temperature heat dissipation pipe section 442 form the low-temperature radiator 32.
In the embodiment of the present disclosure, an engine radiator inlet 433 is disposed on the first engine radiator pipe section 431, and an engine radiator outlet 434 is disposed on the second engine radiator pipe section 432, that is, the engine radiator inlet 433 is used for introducing a cooling medium into the engine radiator 31, when the cooling air passes through a gap between the second flat pipes 452 arranged in parallel, the cooling air can exchange heat with the cooling medium in the second flat pipes 452, so as to achieve engine radiation, and the cooling medium flows out from the engine radiator outlet 434 after radiation.
The first low-temperature heat dissipation pipe section 441 is provided with a low-temperature heat sink inlet 443, the second low-temperature heat dissipation pipe section 442 is provided with a low-temperature heat sink outlet 444, and the low-temperature heat sink inlet 443 is used for introducing a cold area medium into the low-temperature heat sink 32. The cooling air can exchange heat with the cooling medium in the second flat tube 452 to dissipate heat from the electronic device.
Because the inlet air temperature of the engine radiator 31 is generally required to be not higher than 60 ℃, the inlet air temperature of the low-temperature radiator 32 is generally required to be not higher than 55 ℃, and the low-temperature radiator 32 in the second heat exchanger is required to be arranged behind the supercooling region 222 of the condenser 22 in the first heat exchanger, the temperature of the cooling air can rise by 10 ℃ to 15 ℃ due to the heat exchange of the cooling air through the first heat exchanger, the temperature of the supercooling region 222 of the condenser 22 is lower, the temperature rise of the cooling air passing through the supercooling region 222 of the condenser 22 is less, and thus the temperature of the cooling air passing through the condenser 22 can not change greatly, so that the heat dissipation of the low-temperature radiator 32 is facilitated, and the performance requirement of the low-. Therefore, the engine radiator 31 and the low-temperature radiator 32 are integrated into the second heat exchanger, so that the adaptability of the second heat exchanger and the engine radiator is better, the heat exchange performance of the heat exchange structures cannot be influenced mutually, and the performance of a cooling system and the performance of an air conditioning system of the whole vehicle are ensured.
Optionally, the third header 43 and the fourth header 44 are both plastic tubes.
The second heat exchanger integrally combines an engine radiator 31 and a low-temperature radiator 32, and is divided into two parts according to performance requirements, wherein the upper part is the engine radiator 31 and used for cooling the engine, and the lower part is the low-temperature radiator 32 and used for cooling electronic devices such as high-low voltage electric exchangers and the like. The cooling medium flowing through the engine radiator 31 and the low-temperature radiator 32 is cooling liquid, and the working pressure is 0.15Mpa, namely the working pressure in the second heat exchanger is lower, so that the cost is saved by manufacturing the third collecting pipe 43 and the fourth collecting pipe 44 by using plastics.
Alternatively, as shown in fig. 3, the orthographic projection of the low temperature radiator 32 on the projection plane is located within the outline of the orthographic projection of the supercooling region 222 of the condenser 22 on the projection plane, which is perpendicular to the rotation axis of the cooling fan 1. That is, the length and width of the low temperature radiator 32 are not greater than the length and width of the supercooling region 222 of the condenser 22, so that the low temperature radiator 32 is just completely covered by the supercooling region 222, and the intake air temperature requirement of the low temperature radiator 32 is met.
Alternatively, both the cooling fan 1 and the first heat exchange module 2 are detachably connected to the second heat exchange module 3 by fasteners. That is, the first heat exchange module 2 and the cooling fan 1 are simultaneously installed at both sides of the second heat exchange module 3 using the second heat exchange module 3 as an installation reference.
Wherein, as shown in fig. 4, the fastener can be connection turn-ups 47, for example, first heat exchange module 2 arranges in one side of second heat exchange module 3 side by side after, with the butt joint of connection turn-ups 47 of first heat exchange module 2 and second heat exchange module 3 to use bolt and nut to fix both together, when needing to maintain the change, only need to demolish the bolt and can accomplish fast and maintain the operation, convenient maintenance.
The embodiment of the present disclosure provides a hybrid vehicle including the cooling device described above.
Although the present disclosure has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the disclosure.
Claims (10)
1. A cooling device of a hybrid vehicle, characterized by comprising:
a cooling fan (1);
a first heat exchange module (2) comprising an oil cooler (21) and a condenser (22) arranged on the same plane;
a second heat exchange module (3) comprising an engine radiator (31) and a low temperature radiator (32) arranged on the same plane;
in the axial of the pivot of cooling fan (1), second heat exchange module (3) with first heat exchange module (2) are along keeping away from cooling fan (1) arrange side by side in proper order, oil cooler (21) with engine radiator (31) is relative, subcooling district (222) of condenser (22) with low temperature radiator (32) are relative.
2. A cooling arrangement according to claim 1, characterised in that the oil cooler (21) and the condenser (22) are of one piece construction, and that the engine radiator (31) and the low-temperature radiator (32) are of one piece construction.
3. The cooling device according to claim 2, wherein the first heat exchange module (2) is a first heat exchanger, the first heat exchanger comprises a first collecting pipe (41), a second collecting pipe (42) and a plurality of first flat pipes (451) arranged in parallel at intervals, two ends of each first flat pipe (451) are respectively inserted into the first collecting pipe (41) and the second collecting pipe (42) and are communicated with the first collecting pipe (41) and the second collecting pipe (42),
the first collecting pipe (41) and the second collecting pipe (42) are internally provided with partition plates (46) for partitioning inner cavities, the first collecting pipe (41) comprises a first oil cooling pipe section (411) and a first condensation pipe section (421) which are positioned at two sides of the partition plates (46), the second collecting pipe (42) comprises a second oil cooling pipe section (412) and a second condensation pipe section (422) which are positioned at two sides of the partition plates (46), the first oil cooling pipe section (411) is opposite to the second oil cooling pipe section (412), and the first condensation pipe section (421) is opposite to the second condensation pipe section (422),
the first oil cooling pipe section (411), the second oil cooling pipe section (412), and the first flat pipe (451) between the first oil cooling pipe section (411) and the second oil cooling pipe section (412) form the oil cooler (21), and the first condensing pipe section (421), the second condensing pipe section (422), and the first flat pipe (451) between the first condensing pipe section (421) and the second condensing pipe section (422) form the condenser (22).
4. A cooling arrangement according to claim 3, characterized in that the first heat exchanger further comprises a drying bottle (223), the drying bottle (223) being connected to the first condenser section (421) or the second condenser section (422),
the medium inlet (2231) of the drying bottle (223) is communicated with the condensing area (221) of the condenser (22), and the medium outlet (2232) of the drying bottle (223) is communicated with the supercooling area (222) of the condenser (22).
5. A cooling device according to claim 3, characterized in that said first header (41) and said second header (42) are both aluminium alloy tubes.
6. The cooling device according to claim 2, wherein the second heat exchange module (3) is a second heat exchanger, the second heat exchanger includes a third collecting pipe (43), a fourth collecting pipe (44) and a plurality of second flat pipes (452) arranged in parallel and at intervals, two ends of the second flat pipes (452) are respectively inserted into the third collecting pipe (43) and the fourth collecting pipe (44) and are communicated with the third collecting pipe (43) and the fourth collecting pipe (44),
the third collecting pipe (43) and the fourth collecting pipe (44) are internally provided with partition plates (46) for partitioning inner cavities, the third collecting pipe (43) comprises a first engine heat dissipation pipe section (431) and a first low-temperature heat dissipation pipe section (441) which are positioned at two sides of the partition plates (46), the fourth collecting pipe (44) comprises a second engine heat dissipation pipe section (432) and a second low-temperature heat dissipation pipe section (442) which are positioned at two sides of the partition plates (46), the first engine heat dissipation pipe section (431) is opposite to the second engine heat dissipation pipe section (432), and the first low-temperature heat dissipation pipe section (441) is opposite to the second low-temperature heat dissipation pipe section (442),
the first engine heat dissipation pipe section (431), the second engine heat dissipation pipe section (432), and the second flat pipe (452) between the first engine heat dissipation pipe section (431) and the second engine heat dissipation pipe section (432) constitute the engine radiator (31), and the first low-temperature heat dissipation pipe section (441), the second low-temperature heat dissipation pipe section (442), and the second flat pipe (452) between the first low-temperature heat dissipation pipe section (441) and the second low-temperature heat dissipation pipe section (442) constitute the low-temperature radiator (32).
7. Cooling unit according to claim 6, characterized in that the third header (43) and the fourth header (44) are each plastic tubes.
8. A cooling arrangement according to any one of claims 1 to 7, characterised in that the orthographic projection of the cryogenic radiator (32) on a projection plane, which is perpendicular to the axis of rotation of the cooling fan (1), lies within the outline of the orthographic projection of the subcooling zone (222) of the condenser (22) on said projection plane.
9. The cooling device according to any one of claims 1 to 7, wherein the cooling fan (1), the first heat exchange module (2) and the second heat exchange module (3) are provided with connecting flanges (47), and the connecting flanges (47) of the first heat exchange module (2) and the connecting flanges (47) of the cooling fan (1) are respectively attached to two side surfaces of the connecting flanges (47) of the second heat exchange module (3) and fixed by bolts.
10. A hybrid vehicle, characterized in that it comprises a cooling device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011529239.XA CN112606656A (en) | 2020-12-22 | 2020-12-22 | Cooling device of hybrid electric vehicle and hybrid electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011529239.XA CN112606656A (en) | 2020-12-22 | 2020-12-22 | Cooling device of hybrid electric vehicle and hybrid electric vehicle |
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| Publication Number | Publication Date |
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| CN112606656A true CN112606656A (en) | 2021-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011529239.XA Pending CN112606656A (en) | 2020-12-22 | 2020-12-22 | Cooling device of hybrid electric vehicle and hybrid electric vehicle |
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| Country | Link |
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| CN (1) | CN112606656A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114132160A (en) * | 2021-12-13 | 2022-03-04 | 安徽江淮汽车集团股份有限公司 | Cooling fan device for automobile |
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Application publication date: 20210406 |