CN211844078U - Hybrid electric vehicle thermal management system and hybrid electric vehicle - Google Patents

Hybrid electric vehicle thermal management system and hybrid electric vehicle Download PDF

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Publication number
CN211844078U
CN211844078U CN201922058132.0U CN201922058132U CN211844078U CN 211844078 U CN211844078 U CN 211844078U CN 201922058132 U CN201922058132 U CN 201922058132U CN 211844078 U CN211844078 U CN 211844078U
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pipeline
battery
heat
loop
heat exchange
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CN201922058132.0U
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王亚超
胡云啸
刘绅
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FAW Group Corp
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FAW Group Corp
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/62Hybrid vehicles

Abstract

The utility model relates to the technical field of automobiles, a hybrid electric vehicle thermal management system and hybrid electric vehicle is disclosed. The hybrid electric vehicle heat management system comprises a liquid-liquid heat exchanger, a battery heat exchange loop flowing through a battery, a heat dissipation loop flowing through a motor and a heat exchange loop flowing through the motor, wherein a radiator is connected in series with the heat dissipation loop, a first control valve is connected in series with the heat exchange loop, a second control valve is connected in series with the heat dissipation loop, and the battery heat exchange loop realizes selective heat exchange with the heat dissipation loop and the heat exchange loop through the liquid-liquid heat exchanger. In winter, the heat exchange loop is started, the heat of the motor is exchanged to the battery heat exchange loop through the liquid-liquid heat exchanger to heat the battery, the heat of the engine is not used any more, and the heating effect of the passenger compartment is ensured; in spring and autumn, the heat dissipation loop is opened, the heat dissipation of the battery and the motor is realized by the heat radiator, the battery is refrigerated by the cold exchanger refrigerated by the air conditioner, and the better heat dissipation of the battery is realized.

Description

Hybrid electric vehicle thermal management system and hybrid electric vehicle
Technical Field
The utility model relates to the technical field of automobiles, especially, relate to a hybrid vehicle thermal management system and hybrid vehicle.
Background
Generally, the optimum comfortable temperature of the battery is between 0 ℃ and 40 ℃, and the battery works at a proper temperature, thereby being beneficial to improving the oil saving effect and prolonging the service life. The thermal management system of the hybrid vehicle plays a crucial role in heat distribution and temperature control of the engine, the driving motor, the generator, the battery and the passenger compartment of the vehicle.
The technical scheme of collecting heat of an engine to heat a battery in a liquid-liquid heat exchanger heat exchange mode exists in the prior art. For battery refrigeration, the liquid-liquid heat exchanger is closed, the heat of the engine is stopped to heat the battery, and then the cold exchanger for air-conditioning refrigeration is independently adopted to cool the battery. The scheme has the following defects: 1. Under the condition that the ambient temperature is low (-30 ℃ -0 ℃) in winter, the system heats the battery by using the heat of the engine, when the engine is frequently started and stopped, the continuous heating state cannot be ensured, and meanwhile, the heat is distributed to the battery, so that the heating effect in the passenger compartment in winter can be reduced. If the heating temperature of the passenger compartment is maintained, the required working time of the engine is longer, so that the overall oil consumption is increased; 2. when the environmental temperature (0-18 ℃) is lower in spring and autumn, the cold exchanger for air-conditioning refrigeration is adopted to refrigerate the battery, so that on one hand, the power consumption is large, the oil consumption is high, and on the other hand, the compressor for refrigeration easily enters a self-protection mode at a lower temperature.
Therefore, it is highly desirable to provide a thermal management system for a hybrid electric vehicle and a hybrid electric vehicle, which can solve the problem of reduced heating effect of a passenger compartment due to the fact that a battery is heated by using engine circulating heat in winter at low temperature, and can realize better refrigeration and heat dissipation of the battery in spring and autumn.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hybrid vehicle thermal management system can solve and adopt the engine circulation heat to heat the battery under the low temperature winter, leads to the problem that passenger cabin heating effect reduces, and can realize the better refrigeration heat dissipation to the battery in spring and autumn.
To achieve the purpose, the utility model adopts the following technical proposal:
a hybrid vehicle thermal management system comprising:
the liquid-liquid heat exchanger comprises a first pipeline and a second pipeline which are used for heat exchange;
a battery line through which the battery flows;
the battery heat exchange pipeline is connected with the first pipeline in series, and the battery heat exchange pipeline and the battery pipeline are matched to form a battery heat exchange loop capable of exchanging heat with the second pipeline;
a drive motor conduit through which the drive motor flows;
the heat dissipation pipeline is connected with a radiator in series, and the heat dissipation pipeline is matched with the driving motor pipeline and the second pipeline to form a heat dissipation loop;
the bypass pipeline is connected with the heat dissipation pipeline in parallel, and is matched with the driving motor pipeline and the second pipeline to form a heat exchange loop for heating the battery, a first control valve is connected on the bypass pipeline in series, and a second control valve is connected on the heat dissipation pipeline in series.
Optionally, the thermal management system of the hybrid vehicle further includes:
the refrigeration pipeline is connected with the battery heat exchange pipeline in parallel and matched with the battery pipeline to form a refrigeration loop for refrigerating the battery, a third control valve is connected to the refrigeration pipeline in series, and a fourth control valve is connected to the battery heat exchange pipeline in series.
Optionally, the third control valve and the fourth control valve are integrally formed to be a second three-way valve, the second three-way valve includes a first port, a second port and a third port, the first port and the second port are connected in series to the battery heat exchange circuit, and the first port and the third port are connected in series to the refrigeration circuit.
Optionally, a refrigerating device is further connected in series to the refrigerating pipeline, and the refrigerating device is used for cooling the internal water in the refrigerating pipeline so as to refrigerate the battery.
Optionally, a second water pump is connected in series to the battery pipeline, and the second water pump is connected in series and communicated with the refrigerating device and the first pipeline at the same time, so that the battery heat exchange loop and the refrigerating loop share the second water pump.
Optionally, the first control valve and the second control valve are integrally formed to be a first three-way valve, the first three-way valve includes a first port, a second port and a third port, the first port and the second port are connected in series to the heat dissipation loop, and the first port and the third port are connected in series to the heat exchange loop.
Optionally, the thermal management system of the hybrid vehicle further includes:
and the generator pipeline flows through the generator, is connected with the driving motor pipeline in parallel, is connected and communicated with the heat dissipation pipeline in series to form the heat dissipation loop, and is connected and communicated with the bypass pipeline in series to form the heat exchange loop.
Optionally, a first water pump is connected in series to the heat dissipation loop, and the first water pump is connected in series to the heat exchange loop synchronously, so that the heat dissipation loop and the heat exchange loop share the first water pump.
Optionally, the thermal management system of the hybrid vehicle further includes:
the water outlet of the first expansion water tank is communicated with the heat dissipation loop and the heat exchange loop;
and the water outlet of the second expansion water tank is communicated with the battery heat exchange loop.
Another object of the utility model is to provide a new energy automobile, its hybrid vehicle thermal management system can solve and adopt engine circulation heat to heat the battery under the low temperature winter, leads to the problem that the heating effect reduces.
To achieve the purpose, the utility model adopts the following technical proposal:
a hybrid electric vehicle comprises the hybrid electric vehicle thermal management system.
The beneficial effects of the utility model reside in that:
the utility model discloses a battery heat exchange circuit passes through the liquid-liquid heat exchanger and realizes and the heat exchange in heat dissipation return circuit and heat transfer return circuit. The first control valve and the second control valve are connected in series on the heat exchange loop, and the heat dissipation loop and the heat exchange loop can be controlled to be opened and closed respectively. In winter, the heat exchange loop is opened, the heat dissipation loop is closed, the heat of the motor is transmitted to the battery heat exchange loop through the heat exchange of the liquid-liquid heat exchanger so as to heat the battery, the heat of the engine is not used for heating the battery any more, and the heating effect of the passenger compartment is further ensured; in spring and autumn, the heat dissipation loop is opened, the heat exchange loop is closed, the heat of the battery is transferred to the radiator through the heat exchange of the battery heat exchange loop and the liquid-liquid heat exchanger, the radiator synchronously dissipates the heat of the battery and the motor, the battery is refrigerated by the cold exchanger refrigerated by the air conditioner, and the better refrigeration heat dissipation of the battery is realized.
Drawings
Fig. 1 is a thermal management system for a hybrid electric vehicle provided by the present invention.
1-liquid heat exchanger; 2-a battery; 3-a refrigeration device; 4-a second three-way valve; 5-a second water pump; 6-driving a motor; 7-a generator; 8-a radiator; 9-a first three-way valve; 10-a first water pump; 11-a first expansion tank; 12-a second expansion tank; 13-double inverter; 14-DC/DC.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and 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 terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The hybrid electric vehicle heat management system in the current market generally has two heat management schemes of adjustment, namely a battery low-temperature heating mode and a battery high-temperature cooling mode. Under the low-temperature heating mode of the battery, the heat of the engine is exchanged to the battery circulation loop through the liquid-liquid heat exchanger by the engine circulation loop, and then the battery heating is realized. Under the high-temperature refrigeration mode of the battery, the liquid-liquid heat exchanger is closed, the heating of the battery by the heat of the engine is stopped, and then the battery is cooled by the cold exchanger refrigerated by the air conditioner independently.
However, under the condition that the ambient temperature (-30 ℃ to 0 ℃) is very low in winter, the heat management system heats the battery by using the heat of the engine, and the problem that when the engine is started and stopped frequently, the continuous heating state cannot be guaranteed exists; also, the heat of the engine is supplied as the main heat of the passenger compartment, which distributes the heat of the engine to the battery, and the heating effect in the passenger compartment in winter may be reduced. If the heating temperature of the passenger compartment is maintained, the required working time of the engine is longer, so that the overall oil consumption is increased; in addition, when the environmental temperature (0-18 ℃) is lower in spring and autumn, the cold exchanger refrigerating the battery by using the air conditioner for refrigeration has the advantages of large power consumption and high oil consumption on one hand, and the compressor for refrigeration easily enters a self-protection mode at a lower temperature on the other hand
In order to solve the above problem, as shown in fig. 1, the present embodiment provides a thermal management system for a hybrid vehicle, which mainly applies thermal systematic management of a motor 6 and a battery 2 in the hybrid vehicle. The hybrid electric vehicle heat management system comprises a liquid-liquid heat exchanger 1, a battery pipeline, a battery heat exchange pipeline, a driving motor pipeline, a heat dissipation pipeline and a bypass pipeline. The liquid-liquid heat exchanger 1 comprises a first pipeline and a second pipeline for heat exchange; the battery pipe passes through the battery 2; the battery heat exchange pipeline is connected with a first pipeline in series, and the battery heat exchange pipeline is matched with the battery pipeline to form a battery heat exchange loop capable of exchanging heat with a second pipeline; the drive motor pipeline flows through the drive motor 6; the radiating pipeline is connected with a radiator 8 in series, and the radiating pipeline is matched with the driving motor pipeline and the second pipeline to form a radiating loop; the bypass pipeline is connected with the heat dissipation pipeline in parallel, the bypass pipeline is matched with the driving motor pipeline and the second pipeline to form a heat exchange loop for heating the battery, the bypass pipeline is connected with the first control valve in series, and the heat dissipation pipeline is connected with the second control valve in series.
The utility model discloses a battery heat exchange loop passes through the heat exchange of 1 realization of liquid-liquid heat exchanger and heat dissipation return circuit and heat transfer return circuit to it has first control valve to concatenate on the road through the bypass pipeline, and it can the selective control heat dissipation return circuit and the opening and close of heat transfer return circuit to concatenate on the heat dissipation pipeline second control valve. Wherein, the liquid-liquid heat exchanger 1 in this embodiment is a water-water heat exchanger.
In winter, under the condition that the environmental temperature is low (-30 ℃ -0 ℃), the heat exchange loop is opened, the heat dissipation loop is closed, the heat of the motor 6 is transferred to the battery heat exchange loop through the liquid-liquid heat exchanger 1 in a heat exchange manner to heat the battery 2, the heat of the engine is not used for heating the battery 2, the heat loss of the engine is avoided, the heating effect of the passenger compartment is further ensured, and the problem that the whole fuel consumption is increased due to longer working time of the engine when the heat of the engine is used for heating the battery 2 in the prior art is also solved.
In spring and autumn, when the environmental temperature (0 ℃ -18 ℃) is lower, the heat dissipation loop is opened, the heat exchange loop is closed, the heat of the battery 2 is conveyed to the radiator 8 through the heat exchange of the battery heat exchange loop and the liquid-liquid heat exchanger 1, and further the radiator 8 can synchronously dissipate the heat of the battery 2 and the motor 6.
And because the temperature in summer (18 ℃ -50 ℃) is higher, the mode of synchronously radiating the battery 2 and the motor 6 by adopting the cooling loop in spring and autumn is started, and the cooling requirement of the battery 2 in a high-temperature state cannot be met. As shown in fig. 1, the thermal management system of the hybrid electric vehicle provided in this embodiment further includes a cooling pipeline. The refrigeration pipeline is connected in parallel with the battery heat exchange pipeline, the refrigeration pipeline and the battery pipeline are matched to form a refrigeration loop for refrigerating the battery 2, the refrigeration pipeline is connected with a third control valve in series, and the battery heat exchange pipeline is connected with a fourth control valve in series.
In summer, when the ambient temperature (18 ℃ -50 ℃) is very high, the heat dissipation loop is opened, and the motor 6 still dissipates heat through the radiator 8 of the heat dissipation loop. At this time, a refrigeration loop formed by matching the refrigeration pipeline and the battery pipeline is opened and a battery heat exchange loop is closed by adjusting a third control valve connected in series on the refrigeration pipeline and a fourth control valve connected in series on the battery heat exchange pipeline, so that the battery 2 is refrigerated independently through the refrigeration loop. In this mode, separate cooling of the battery 2 and the motor 6 is achieved. Wherein, the refrigerating device 3 is connected in series on the refrigerating pipeline, and the refrigerating device 3 is used for cooling the internal water in the refrigerating loop and further used for refrigerating the battery 2. The refrigerating apparatus 3 employed in the present embodiment is a cold exchanger for air-conditioning refrigeration.
Therefore, the hybrid electric vehicle thermal management system provided by the embodiment can provide three modes of thermal management schemes. Namely, in spring and autumn, at a lower temperature, the heat exchange loop is closed, the refrigeration loop is closed, and the heat dissipation loop and the battery heat exchange loop are opened, so that the heat dissipation loop exchanges heat with the battery heat exchange loop through the liquid-liquid heat exchanger 1, and the radiator 8 synchronously refrigerates the battery 2 and the motor 6; in high temperature in summer, the heat exchange loop is closed, the battery heat exchange loop is closed, the heat dissipation loop is opened, and the refrigeration loop is opened, so that the refrigeration loop independently refrigerates the battery 2 through the refrigeration device 3, and the heat dissipation loop independently dissipates heat of the motor 6 through the radiator 8; in winter, at a low temperature, the heat exchange loop is opened, the battery heat exchange loop is opened, the heat dissipation loop is closed, and the refrigeration loop is closed, so that heat of the motor 6 is exchanged to the battery heat exchange loop through the liquid-liquid heat exchanger 1, and finally the battery 2 is heated by the heat of the motor 6.
In addition, the battery pipeline in the embodiment also flows through the DC/DC14 (also called as a DC power converter), thereby realizing the thermal management of the DC/DC 14.
The hybrid electric vehicle heat management system of the embodiment has the advantages of simple structure and low design cost, provides three different heat management schemes, and realizes the rationalization management and control of the temperature and the heat of the battery 2 and the motor 6.
Specifically, as shown in fig. 1, in this embodiment, the third control valve of the refrigeration pipeline and the fourth control valve of the battery heat exchange pipeline are integrally formed as a second three-way valve 4, the second three-way valve 4 includes a first valve port, a second valve port, and a third valve port, the first valve port and the second valve port are connected in series to the battery heat exchange loop, the first valve port and the third valve port are connected in series to the refrigeration loop, that is, the first valve port and the second valve port are combined to form the fourth control valve of the battery heat exchange loop, and the first valve port and the third valve port are combined to form the third control valve of the refrigeration loop. In other embodiments, a two-way valve may be respectively disposed on the refrigeration pipeline and the battery heat exchange pipeline to control the opening and closing of the refrigeration pipeline and the battery heat exchange pipeline. The embodiment adopts a second three-way valve 4 to realize the on-off control of the refrigeration pipeline and the battery heat exchange pipeline, and the design structure is simpler.
Similarly, as shown in fig. 1, in this embodiment, the first control valve of the bypass pipeline and the second control valve of the heat dissipation pipeline are integrally formed as a first three-way valve 9, the first three-way valve 9 includes a first port, a second port and a third port, the first port and the second port are serially connected to the heat dissipation loop, the first port and the third port are serially connected to the heat exchange loop, that is, the first port and the second port are combined to form the second control valve of the heat dissipation pipeline, and the first port and the third port are combined to form the first control valve of the bypass pipeline. In other embodiments, a two-way valve may be respectively disposed on the bypass pipeline and the heat dissipation pipeline to control the on/off of the refrigeration pipeline and the battery heat exchange pipeline.
In order to drive the internal water in each circuit to perform a circulating motion, as shown in fig. 1, in this embodiment, a second water pump 5 is connected in series to the battery pipeline, and the second water pump 5 is connected in series to the refrigeration device 3 and the first pipeline at the same time, so that the battery heat exchange circuit and the refrigeration circuit share the second water pump 5, and the internal water can be driven to perform a circulating motion in the battery heat exchange circuit or the refrigeration circuit by the second water pump 5.
Similarly, as shown in fig. 1, the heat dissipation loop is connected in series with the first water pump 10, and the first water pump 10 is connected in series with the heat exchange loop synchronously, so that the heat dissipation loop and the heat exchange loop share the first water pump 10, and the first water pump 10 can drive the internal water to move in the heat dissipation loop or the heat exchange loop in a circulating manner.
Further, since the power system of the hybrid vehicle further includes the generator 7. In this embodiment, the thermal management system of the hybrid electric vehicle further includes a generator pipeline. The generator pipeline flows through the generator 7, the generator pipeline is connected with the driving motor pipeline in parallel, the generator pipeline and the heat dissipation pipeline are connected in series and communicated to form a heat dissipation loop, and the generator pipeline and the bypass pipeline are connected in series and communicated to form a heat exchange loop. The present embodiment achieves heat management of the generator 7 by designing the generator piping through the generator 7.
Further, the generator pipeline of the present embodiment also flows through the dual inverter 13, thereby achieving thermal management of the dual inverter 13 at the same time.
In addition, under the influence of temperature, leakage and thermal evaporation, the water pressure and water amount in each loop can change, and the normal operation of the thermal management system is further influenced. In order to avoid the influence, as shown in fig. 1, the thermal management system of the hybrid vehicle according to the present embodiment further includes a first expansion tank 11 and a second expansion tank 12. The water outlet of the first expansion water tank 11 is communicated with the heat dissipation loop and the heat exchange loop; the water outlet of the second expansion tank 12 is communicated with the battery heat exchange loop. The first expansion tank 11 and the second expansion tank 12 provided in this embodiment have a pressure stabilizing effect on the one hand and a water replenishing effect on the other hand.
The embodiment also provides a hybrid electric vehicle, and the hybrid electric vehicle provided by the embodiment is assembled on the hybrid electric vehicle, so that the hybrid electric vehicle heat management system has three heat management schemes, namely, in spring and autumn at a lower temperature, the heat exchange loop is closed, the refrigeration loop is closed, the heat dissipation loop and the battery heat exchange loop are opened, the heat dissipation loop exchanges heat with the battery heat exchange loop through the liquid-liquid heat exchanger 1, and the synchronous refrigeration of the battery 2 and the motor 6 by the radiator 8 is realized; in high temperature in summer, the heat exchange loop is closed, the battery heat exchange loop is closed, the heat dissipation loop is opened, the refrigeration loop independently refrigerates the battery 2 through the refrigeration device 3, and the heat dissipation loop independently dissipates heat of the motor 6 through the radiator 8; under winter low temperature, heat exchange circuit opens, and battery heat exchange circuit opens, and heat dissipation loop closes, and refrigeration circuit closes, and the heat of motor 6 passes through 1 heat exchange of liquid-liquid heat exchanger to battery heat exchange circuit, finally realizes utilizing the heat of motor 6 to heat battery 2, and its simple structure, design cost are low, and the user can select different heat management schemes according to the ambient temperature in different seasons, realizes the rationalization management regulation and control to battery 2 and motor 6 temperature.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims (10)

1. A hybrid vehicle thermal management system, comprising:
the liquid-liquid heat exchanger (1) comprises a first pipeline and a second pipeline for heat exchange;
a battery line through which the battery (2) flows;
the battery heat exchange pipeline is connected with the first pipeline in series, and the battery heat exchange pipeline and the battery pipeline are matched to form a battery heat exchange loop capable of exchanging heat with the second pipeline;
a drive motor conduit through which passes the drive motor (6);
the heat dissipation pipeline is connected with a radiator (8) in series, and the heat dissipation pipeline is matched with the driving motor pipeline and the second pipeline to form a heat dissipation loop;
the bypass pipeline is connected with the heat dissipation pipeline in parallel, and is matched with the driving motor pipeline and the second pipeline to form a heat exchange loop for heating the battery, a first control valve is connected on the bypass pipeline in series, and a second control valve is connected on the heat dissipation pipeline in series.
2. The hybrid vehicle thermal management system of claim 1, further comprising:
the refrigeration pipeline is connected with the battery heat exchange pipeline in parallel and matched with the battery pipeline to form a refrigeration loop for refrigerating the battery (2), a third control valve is connected to the refrigeration pipeline in series, and a fourth control valve is connected to the battery heat exchange pipeline in series.
3. The thermal management system of a hybrid vehicle according to claim 2, wherein the third control valve and the fourth control valve are integrally formed as a second three-way valve (4), and the second three-way valve (4) comprises a first port, a second port and a third port, the first port and the second port are connected in series to the battery heat exchange circuit, and the first port and the third port are connected in series to the refrigeration circuit.
4. The hybrid vehicle thermal management system according to claim 2, wherein a refrigerating device (3) is further connected in series to the refrigerating pipeline, and the refrigerating device (3) is used for cooling internal water in the refrigerating pipeline to refrigerate the battery (2).
5. The hybrid vehicle thermal management system of claim 4, characterized in that a second water pump (5) is connected in series to the battery line.
6. The thermal management system of a hybrid vehicle according to claim 1, wherein the first control valve and the second control valve are integrally formed as a first three-way valve (9), the first three-way valve (9) includes a first port, a second port and a third port, the first port and the second port are connected in series to the heat dissipation circuit, and the first port and the third port are connected in series to the heat exchange circuit.
7. The hybrid vehicle thermal management system of claim 1, further comprising:
and the generator pipeline flows through the generator (7), is connected with the driving motor pipeline in parallel, is connected and communicated with the heat dissipation pipeline in series to form the heat dissipation loop, and is connected and communicated with the bypass pipeline in series to form the heat exchange loop.
8. The hybrid vehicle thermal management system of claim 7, characterized in that a first water pump (10) is connected in series to the heat dissipation loop, and the first water pump (10) is synchronously connected in series to the heat exchange loop, so that the heat dissipation loop and the heat exchange loop share the first water pump (10).
9. The hybrid vehicle thermal management system of claim 1, further comprising:
a water outlet of the first expansion water tank (11) is communicated with the heat dissipation loop and the heat exchange loop;
and a second expansion water tank (12) with a water outlet communicated with the battery heat exchange loop.
10. A hybrid vehicle comprising the hybrid vehicle thermal management system of any one of claims 1-9.
CN201922058132.0U 2019-11-25 2019-11-25 Hybrid electric vehicle thermal management system and hybrid electric vehicle Active CN211844078U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113314730A (en) * 2021-03-19 2021-08-27 北京和瑞储能科技有限公司 Temperature control pipeline system of flow battery

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113314730A (en) * 2021-03-19 2021-08-27 北京和瑞储能科技有限公司 Temperature control pipeline system of flow battery

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