CN218661243U

CN218661243U - Thermal management system for vehicle and vehicle

Info

Publication number: CN218661243U
Application number: CN202223140206.3U
Authority: CN
Inventors: 胡康; 赵子健
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-03-21
Anticipated expiration: 2032-11-25

Abstract

The utility model discloses a thermal management system for a vehicle and the vehicle, wherein the thermal management system comprises a heat exchange loop, a battery loop and an air conditioner cold loop; the heat exchange loop is connected with an exhaust pipeline of the engine and is connected with the battery loop through a first control valve; the battery loop at least comprises a first pump, a battery assembly and a PTC heater which are sequentially connected in series, the inlet of the first pump is connected with a first control valve, the downstream position of the battery assembly is connected with a heat exchange loop, the battery assembly is sequentially connected with a cooler and the PTC heater in the air-conditioning cold loop through a second control valve, the battery assembly is heated by the PTC heater and cooled by the cooler, and the heat exchange loop is further connected with a cylinder body of the engine through the first control valve. The utility model discloses realize effectively fusing to the waste heat utilization of engine, the high-efficient heating of battery, the waste heat utilization of motor etc. and realize the reasonable application to the energy in the vehicle.

Description

Thermal management system for vehicle and vehicle

Technical Field

The utility model belongs to the technical field of the vehicle technique and specifically relates to a thermal management system and vehicle for vehicle is related to.

Background

Currently, the automobile industry is dedicated to research on reducing energy consumption of vehicles to adapt to the increasingly severe energy crisis, including the development of new energy vehicles and the adoption of new technologies, but the cost is often high. The attenuation of the endurance mileage of the pure electric vehicle in winter is always a problem troubling host plants, the energy is generated by the battery and the heating of a passenger compartment, and the energy is not stored much, so that the energy storage is more effective, and how to improve the energy utilization rate in the vehicle becomes a problem to be overcome, so that the vehicle has longer endurance mileage and is more competitive when the electric quantity is equal.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving the technical problem such as energy utilization who exists among the prior art at least.

In order to achieve the above objects, one aspect of the present invention provides a thermal management system for a vehicle, which includes a heat exchange circuit, a battery circuit, and an air conditioning cooling circuit; the heat exchange loop is connected with an exhaust pipeline of the engine, and the heat exchange loop is connected with the battery loop through a first control valve; the battery return circuit is at least including establishing ties first pump, battery pack and the PTC heater that sets up in proper order, the import of first pump with first control valve is connected, battery pack's low reaches position with heat transfer loop connects, battery pack pass through the second control valve with cooler in the air conditioner cold circuit with the PTC heater connects gradually, through the PTC heater does battery pack heats and passes through the cooler does the battery pack cooling, heat transfer loop still passes through first control valve with the cylinder body of engine is connected.

In some embodiments, further comprising a motor circuit connected to the battery circuit through a third control valve; the motor loop at least comprises a driving motor and a second pump, the downstream position of the driving motor is connected with the battery loop, waste heat of the driving motor is used for heating the battery assembly, the upstream position of the driving motor is connected with the downstream position of the battery assembly through the third control valve, and the driving motor is heated through the heat exchange loop.

In some embodiments, the motor circuit further comprises a heat sink disposed in series with the drive motor, the third control valve is disposed between the drive motor and the first port of the heat sink, and the second port of the heat sink is connected upstream of the battery assembly.

In some embodiments, the second port of the radiator is directly connected to the third control valve.

In some embodiments, the heat exchange circuit comprises a heat exchanger and a third pump arranged in series, the heat exchanger being connected to the exhaust gas conduit by a fourth control valve.

In some embodiments, the heat exchange circuit further comprises a heat collection tank disposed at a downstream position of the heat exchanger.

In some embodiments, the first control valve is disposed at an outlet of the heat collection tank, and the heat collection tank is connected upstream of the battery assembly through the first control valve, and downstream of the battery assembly is connected to an inlet of the heat exchanger.

In some embodiments, the air-conditioning cold circuit comprises a compressor and a condenser which are sequentially connected in series, an outlet of the condenser is respectively connected with an inlet of the cooler and an inlet of the evaporator, and an outlet of the cooler and an outlet of the evaporator are both connected with the compressor.

Another aspect of the present invention provides a vehicle, comprising the thermal management system according to any one of the above technical solutions.

The utility model discloses to the waste heat utilization of engine, the efficient heating of battery, the waste heat utilization of motor etc. realize effectively fusing, can practice thrift the required energy of heating vehicle inner part winter by a wide margin, effectively improve the vehicle especially at low temperature or pure continuation of the journey mileage under the lower temperature, can also realize cooling the vehicle inner part when waiting, realize the reasonable application to the energy in the vehicle.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a thermal management system according to an embodiment of the present invention.

Reference numerals:

1-a heat exchanger; 2-a heat collecting tank; 3-a fourth control valve; 4-a third pump; 5-a first control valve; 6-a battery assembly; 7-a first pump; 8-a third control valve; 9-driving a motor; 10-a motor controller; 11-a charger; 12-a heat sink; 13-a second pump; 14-a second control valve; 15-a PTC heater; 16-a cooler; 17-a compressor; 18-a condenser; 19-an evaporator; 20-a first four-way member; 21-a first tee; 22-a second tee; 23-a second cross-piece; 100-a heat exchange loop; 200-a battery loop; 300-air conditioning cold loop; 400-motor loop; 500-engine.

Detailed Description

Various aspects and features of the present invention are described herein with reference to the drawings.

It will be understood that various modifications may be made to the embodiments of the present application. Accordingly, the foregoing description should not be construed as limiting, but merely as exemplifications of embodiments. Other modifications within the scope and spirit of the invention will occur to those skilled in the art.

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with a general description of the invention given above, and the detailed description of the embodiments given below, serve to explain the principles of the invention.

These and other characteristics of the invention will become apparent from the following description of a preferred form of embodiment, given as a non-limiting example, with reference to the accompanying drawings.

It should also be understood that, although the present invention has been described with reference to some specific examples, a person of skill in the art shall certainly be able to achieve many other equivalent forms of the invention, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.

The above and other aspects, features and advantages of the present invention will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.

Specific embodiments of the present invention are described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which can be embodied in various forms. Well-known and/or repeated functions and constructions are not described in detail to avoid obscuring the invention in unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention in virtually any appropriately detailed structure.

The description may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the present invention.

The first embodiment of the utility model provides a thermal management system for vehicle, thermal management system can be when the engine of vehicle starts or under the engine just stalled and the higher circumstances of body temperature, with waste heat in the exhaust of engine stores in the heat-retaining device for parts such as later stage heating motor element, battery pack, so the vehicle realizes only needing the engine to start under pure electric mode, and pure electric mode just can normally use, heats each part that needs the heating through using waste heat in the exhaust of engine, can practice thrift the energy that these parts need be heated in winter by a wide margin, effectively improves the pure electric endurance mileage of vehicle under low temperature or lower temperature; in addition, the thermal management system can also cool down the battery assembly and the like when needed.

Specifically, as shown in fig. 1, the thermal management system includes a heat exchange loop 100, a battery loop 200, and an air conditioning cold loop 300; wherein the heat exchange loop 100 is connected with an exhaust pipeline of an engine 500 to receive waste heat in the exhaust pipeline, the heat exchange loop 100 is connected with the battery loop 200 through a first control valve 5, and the first control valve 5 may be a four-way valve.

Further, battery circuit 200 includes first pump 7, battery pack 6 and the PTC heater 15 that sets up in proper order in series at least, the import of first pump 7 with first control valve 5 is connected, battery pack 6's downstream position with heat exchange circuit 100 is connected, battery pack 6 through second control valve 14 with cooler 16 in air conditioner cold loop 300 with PTC heater 15 connects gradually, through PTC heater 15 is for battery pack 6 heats and through cooler 16 is for battery pack 6 cools down, and here second control valve 14 can adopt the three-way valve. Furthermore, the heat exchange circuit 100 is also connected to the cylinder block of the engine 500 through the first control valve 5.

Further, the thermal management system further comprises a motor circuit 400, wherein the motor circuit 400 is connected with the battery circuit 200 through a third control valve 8; the motor circuit 400 at least comprises a driving motor 9 and a second pump 13, and in addition, the motor circuit 400 can also comprise a motor controller 10 and a charger 11 according to requirements; a downstream position of the driving motor 9 is connected to the battery circuit 200, so that waste heat of the driving motor 9 can be used for heating the battery assembly 6, an upstream position of the driving motor 9 is connected to a downstream position of the battery assembly 6 through the third control valve 8, the driving motor 9 is heated through the heat exchange circuit 100, and the third control valve 8 may be a four-way valve.

Further, the motor circuit 400 further includes a radiator 12, the radiator 12 is disposed in series with the driving motor 9, the third control valve 8 is disposed between the driving motor 9 and a first port of the radiator 12, and a second port of the radiator 12 is connected to an upstream of the battery assembly 6. In one embodiment, the second port of the radiator 12 is directly connected to the third control valve 8.

Further, the heat exchange circuit 100 includes a heat exchanger 1 and a third pump 4 arranged in series, the heat exchanger 1 is connected to the exhaust pipe through a fourth control valve 3, and the fourth control valve 3 may be a three-way valve.

Furthermore, the heat exchange circuit 100 further comprises a heat collection tank 2, the heat collection tank 2 being arranged at a position downstream of the heat exchanger 1. Wherein the first control valve 5 is arranged at the outlet position of the heat collection tank 2, the heat collection tank 2 is connected with the upstream position of the battery assembly 6 through the first control valve 5, and the downstream position of the battery assembly 6 is connected with the inlet of the heat exchanger 1.

Further, the air-conditioning cooling circuit 300 includes a compressor 17 and a condenser 18 which are sequentially connected in series, an outlet of the condenser 18 is respectively connected with an inlet of the cooler 16 and an inlet of the evaporator 19, and an outlet of the cooler 16 and an outlet of the evaporator 19 are both connected with the compressor 17.

The first control valve 5, the second control valve 14, the third control valve 8 and the fourth control valve 3 may be in the form of solenoid valves, and may directly open the corresponding passages or open the corresponding passages in a proportional adjustment manner.

The utility model discloses a use scene through combining different parts in the vehicle and whole system, to the heat in the vehicle effectively manages, through adopting above-mentioned thermal management system, for example when battery pack 6 in the vehicle needs the heating, can select to use the heat in heat collection jar 2 in heat transfer circuit 100 or the used heat of motor in motor circuit 400 heats, also can heat through PTC heater 15 under the circumstances such as not having heat-retaining simultaneously; in addition, when the driving motor 9 needs to be heated, the heat in the heat collecting tank 2 in the heat exchange loop 100 can be used for heating.

On the other hand, for example, when the battery assembly 6 needs to be cooled, the cooler 16 in the air-conditioning cold circuit 300 may be used for cooling or the radiator 12 in the motor circuit 400 may be used for cooling, so as to meet the cooling requirements of the battery assembly 6 and the motor assembly in multiple scenarios; the heat sink 12 herein may also dissipate heat from the driving motor 9.

Therefore, the thermal management system can achieve the purpose of saving heating energy consumption, and can enable the driving motor 9, the battery assembly 6 and the like to rapidly enter the optimal working temperature, so that the dynamic property and the economical efficiency of the vehicle are guaranteed.

In addition, when the engine 500 needs to be started, the heat in the heat collection tank 2 in the heat exchange loop 100 can be used for heating the engine 500, so that the initial temperature of the engine 500 is increased, and the aims of improving the emission and reducing the oil consumption are fulfilled.

Thermal management system can use under a plurality of scenes, uses scene one as the example below, and in scene one, the vehicle can travel under the ultralow temperature condition in winter, realizes multiple functions such as used heat energy storage, battery, motor and engine heating.

When the engine 500 of the vehicle is started or the engine 500 is just shut off and the body temperature is high, the fourth control valve 3 is controlled to open the 1 → 2 directional passage, high-temperature exhaust gas is introduced into the heat exchanger 1, the third pump 4 is controlled to operate, and the first control valve 5 is controlled to open the 1 → 3 directional passage, so that the fluid in the heat exchange circuit 100 exchanges heat with the high-temperature exhaust gas in the heat exchanger 1; at this time, the heat collection tank 2 can collect and store waste heat in the high-temperature exhaust gas of the engine 500, and can be used to heat components such as the battery assembly 6, the drive motor 9, and the engine 500 in a later stage.

When the vehicle needs to recover energy or needs to run in a pure electric state, if the temperature of the battery assembly 6 is low, the efficiency of recovering energy and the discharge capacity of the battery assembly 6 are affected, so that the recovered energy of the vehicle is reduced or the dynamic performance of the whole vehicle is deteriorated, at the moment, the battery assembly 6 needs to be heated, specifically, the first control valve 5 is controlled to open a 1 → 4 directional passage, the 2 ports and the 3 ports of the first control valve 5 are controlled to be closed, and meanwhile, the third pump 4 is controlled to run; further, the second control valve 14 is controlled so that the 2 → 3 direction and the 1 → 3 direction are closed while the 2 port and the 4 port of the third control valve 8 are adjusted to be closed, and the first pump 7 is controlled to operate so as to pump the fluid having a higher temperature into the battery assembly 6, thereby heating the battery assembly 6.

The heated fluid flows back to the heat exchange circuit 100 through the first four-way member 20 and is stored in the heat collection tank 2, so that the battery assembly 6 can be heated by the heat in the heat collection tank 2 alone, or the heat exchanger 1 can be heated while recovering the exhaust heat of the engine 500 by controlling the first control valve 5 to open the passages in the directions 1 → 4 and 1 → 3 and keeping the 2 ports closed.

When there is no heat in the heat collection tank 2 or the battery assembly 6 is not heated by the heat in the heat collection tank 2, the waste heat of the driving motor 9 may be used for heating, and at this time, the second control valve 14 is controlled so that the 2 → 3 direction and the 1 → 3 direction are closed, the first pump 7 is controlled to operate, the first control valve 5 is controlled to open the 1 → 3 direction passage, the 2 port and the 4 port are closed, and the third control valve 8 is controlled to open the 4 → 1 direction passage, the 2 port and the 3 port are closed, and the second pump 13 is controlled to operate, so that the waste heat of the driving motor 9 in the motor circuit 400 can be transferred to the heat exchange circuit 100 to heat the battery assembly 6.

In addition, the battery assembly 6 can be heated by using the PTC heater 15 alone, and then the second control valve 14 is controlled to open the 3 → 1 directional path, the 2 port is controlled to close, the first pump 7 is controlled to operate, and the PTC heater 15 is used to heat the battery assembly 6.

In addition, when the engine 500 needs to be heated, the third pump 4 is controlled to operate, the first control valve 5 is controlled to open the 1 → 2 directional path, and the

ports

3 and 4 are controlled to be closed, the high-temperature fluid in the heat collection tank 2 is pumped into the cylinder of the engine 500 by the third pump 4 and then used for heating the cylinder of the engine 500, and the heated fluid returns to the heat exchanger 1 through the first four-way member 20.

Taking scene two as an example, in scene two, the cooling of the battery, the motor and the passenger compartment in the vehicle is realized

Taking a second scene as an example, in the second scene, the temperature of the battery, the motor, the passenger compartment and the like in the vehicle can be reduced.

Specifically, when the ambient temperature is low or moderate, when the battery assembly 6 needs to be cooled, the radiator 12 in the motor circuit 400 may be adopted alone for cooling, and at this time, the first control valve 5 is controlled to open the 1 → 3 directional passage, the

ports

4 and 2 are kept closed, the second control valve 14 is controlled to open the 1 → 2 directional passage, the port 3 is controlled to be closed, the first pump 7 is controlled to operate, the third control valve 8 is controlled to open the 4 → 3 directional passage, the

ports

1 and 2 are kept closed, a fluid flows through the radiator 12 for heat exchange, and the fluid after heat exchange flows to the battery assembly 6 through the second four-way member 23 and the first three-way member 21.

In the case of lower ambient temperature, when the battery assembly 6 needs to be cooled down to maintain a suitable temperature, the heat sink 12 is shared by the battery assembly 6 and the driving motor 9 to dissipate heat, at this time, the first control valve 5 is controlled to open the 1 → 3 directional passage, the 4 ports and the 2 ports are kept closed, the second control valve 14 is controlled to open the 1 → 2 directional passage, the 3 port is controlled to close, the first pump 7 is controlled to operate, at this time, the third control valve 8 is controlled to open the 4 → 1 and 3 → 1 directional passages, the 2 port is controlled to close, and the second pump 13 is controlled to operate, so that the fluid in the battery circuit 200 is mixed with the fluid in the motor circuit 400, and then the cooling is achieved jointly by the heat sink 12, and the heat-exchanged fluid flows to the battery assembly 6 through the second four-way member 23 and the first three-way member 21.

When the battery assembly 6 needs to be cooled by the cooler 16 in the air-conditioning cold circuit 300, the second control valve 14 is controlled to open the 3 → 1 directional passage, the control port 2 is controlled to close, and the first pump 7 is controlled to operate, so that the battery assembly 6 is cooled by the cooler 16.

When the driving motor 9 needs to be cooled, the third control valve 8 is adjusted to open a 3 → 1 directional passage, and the 2 port and the 4 port are closed, the second pump 13 is controlled to operate, fluid is pumped into components needing to be cooled, such as the driving motor 9, and then the temperature is reduced through the radiator 12; when the driving motor 9 does not need to be cooled, the third control valve 8 is adjusted to keep the 2 → 1 directional passage, and the 3 and 4 ports are closed, the second pump 13 is controlled to operate to only maintain the temperature equalizing function, and the fluid in the motor circuit 400 is kept warm.

A second embodiment of the present disclosure also provides a vehicle including the thermal management system of any of the above claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

In the description of the present invention, "a plurality" means two or more.

In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A thermal management system for a vehicle, comprising a heat exchange circuit, a battery circuit and an air conditioning cold circuit; the heat exchange loop is connected with an exhaust pipeline of the engine, and the heat exchange loop is connected with the battery loop through a first control valve; the battery return circuit is at least including establishing ties first pump, battery pack and the PTC heater that sets up in proper order, the import of first pump with first control valve is connected, battery pack's low reaches position with heat transfer loop connects, battery pack pass through the second control valve with cooler in the air conditioner cold circuit with the PTC heater connects gradually, through the PTC heater does battery pack heats and passes through the cooler does the battery pack cooling, heat transfer loop still passes through first control valve with the cylinder body of engine is connected.

2. The thermal management system of claim 1, further comprising a motor circuit connected to the battery circuit through a third control valve; the motor loop at least comprises a driving motor and a second pump, the downstream position of the driving motor is connected with the battery loop, waste heat of the driving motor is used for heating the battery assembly, the upstream position of the driving motor is connected with the downstream position of the battery assembly through the third control valve, and the driving motor is heated through the heat exchange loop.

3. The thermal management system of claim 2, wherein the motor circuit further comprises a heat sink disposed in series with the drive motor, the third control valve being disposed between the drive motor and the first port of the heat sink, the second port of the heat sink being connected upstream of the battery assembly.

4. The thermal management system of claim 3, wherein the second port of the heat sink is directly connected to the third control valve.

5. The thermal management system of claim 1, wherein the heat exchange circuit comprises a heat exchanger and a third pump arranged in series, the heat exchanger being connected to the exhaust conduit by a fourth control valve.

6. The thermal management system of claim 5, wherein the heat exchange circuit further comprises a heat collection tank disposed at a location downstream of the heat exchanger.

7. The thermal management system of claim 6, wherein the first control valve is disposed at an outlet of the heat collection tank, the heat collection tank being connected upstream of the battery assembly via the first control valve, and downstream of the battery assembly being connected to an inlet of the heat exchanger.

8. The thermal management system of claim 1, wherein the air conditioning cooling circuit comprises a compressor and a condenser which are sequentially connected in series, an outlet of the condenser is respectively connected with an inlet of the cooler and an inlet of the evaporator, and an outlet of the cooler and an outlet of the evaporator are both connected with the compressor.

9. A vehicle comprising a thermal management system according to any of claims 1-8.