CN218661244U - Thermal management system for vehicle and vehicle - Google Patents

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 battery assembly and a PTC heater, the battery assembly is heated through the heat exchange loop, the battery assembly is respectively connected with the PTC heater and a cooler in the air-conditioning cold loop through a second control valve, the battery assembly is heated through the PTC heater, and the battery assembly is cooled through the cooler. 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.

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 a host factory, namely the heating of the battery and the heating of a passenger compartment, and the energy comes from the battery, so that the energy storage is not too much, the problem of overcoming the problem of how to improve the energy utilization rate in the vehicle becomes, and the vehicle has longer endurance mileage and is more competitive when the electric quantity is equal.

Disclosure of Invention

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

In order to achieve the above object, the present invention provides a thermal management system for a vehicle, including 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 includes battery pack and PTC heater at least, through heat transfer circuit does battery pack heats, battery pack pass through the second control valve respectively with the PTC heater with cooler in the air conditioner cold circuit is connected, through the PTC heater does battery pack heats and passes through the cooler does battery pack cooling.

In some embodiments, the battery system further comprises a motor loop connected with the battery loop, the motor loop at least comprises a driving motor and a radiator, the driving motor and the radiator are sequentially connected in series, the radiator is used for cooling the driving motor, and the driving motor is heated through the heat exchange loop.

In some embodiments, the motor circuit is connected to an upstream position and a downstream position of the battery assembly, respectively, and waste heat of the driving motor is used for heating the battery assembly and cooling the battery assembly through the radiator.

In some embodiments, the motor circuit is connected to the battery circuit through a third control valve disposed between the drive motor and the first port of the heat sink.

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 heat collection tank arranged in series, the heat exchanger being connected to the exhaust gas conduit by a fourth control valve.

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

In some embodiments, the heat exchange circuit is also connected to the block of the engine through the first control valve.

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

The utility model discloses waste heat utilization to the engine, the high-efficient heating of battery, waste heat utilization etc. of motor realize effectively fusing, can practice thrift the required energy of heating vehicle inner part in winter by a wide margin, effectively improve the vehicle especially at the electricelectric continuation of the journey mileage of low temperature or lower temperature, can also realize cooling off 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 used in the embodiments or the prior art descriptions 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 other drawings can be obtained by those skilled in the art without inventive labor.

Fig. 1 is a schematic structural diagram of the thermal management system 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 pack; 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 circuit; 400-motor loop; 500-engine.

Detailed Description

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

It should 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 is also 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; the heat exchange loop 100 is connected with an exhaust pipeline of an engine 500, and the heat exchange loop 100 is connected with the battery loop 200 through a first control valve 5; the battery loop 200 at least comprises a battery assembly 6, a PTC heater 15 and a first pump 7, the battery assembly 6 is heated by the heat exchange loop 100, the battery assembly 6 is respectively connected with the PTC heater 15 and a cooler 16 in the air-conditioning cooling loop 300 by a second control valve 14, the battery assembly 6 is heated by the PTC heater 15 and the battery assembly 6 is cooled by the cooler 16, the first control valve 5 can adopt a four-way valve, and the second control valve 14 can also adopt a four-way valve.

Further, the thermal management system further comprises a motor loop 400 connected with the battery loop 200, the motor loop 400 at least comprises a driving motor 9 and a radiator 12, the driving motor 9 is sequentially connected in series, the radiator 12 is used for cooling the driving motor 9, and the driving motor 9 is heated through the heat exchange loop 100. Of course, the motor circuit 400 further includes a second pump 13, a motor control 10, and a charger 11.

Further, the motor circuit 400 is connected to the upstream position and the downstream position of the battery assembly 6, respectively, and the waste heat of the driving motor 9 is used for heating the battery assembly 6 and cooling the battery assembly 6 through the heat sink 12.

Further, the motor circuit 400 is connected to the battery circuit 200 through a third control valve 8, the third control valve 8 being provided between the driving motor 9 and the first port of the radiator 12. In one embodiment, the second port of the radiator 12 is directly connected to the third control valve 8. The third control valve 8 herein may be a four-way valve.

Further, the heat exchange circuit 100 includes a heat exchanger 1 and a heat collection tank 2 arranged in series, and the heat exchanger 1 is connected with an exhaust pipeline of the engine 500 through a fourth control valve 3. The fourth control valve 3 herein may be a three-way valve. Furthermore, the heat exchange circuit 100 comprises a third pump 4.

Further, 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 5 the upstream position of the battery assembly 6 through the first control valve, and the downstream 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.

Further, the heat exchange circuit 100 is also connected to the cylinder of the engine 500 through the first control valve 5.

It should be noted that, the first control valve 5, the second control valve 14, the third control valve 8, and the fourth control valve 3 are all solenoid valves, and the corresponding passages can be directly opened or opened in a proportional adjustment manner.

The utility model discloses a combine the use scene of different parts and overall system in the vehicle, it is right heat in the vehicle effectively manages.

The thermal management system can store waste heat in exhaust gas of the engine 500 under the condition that the temperature of the engine 500 is high, so that the waste heat can be used for heating components such as a motor assembly, a battery assembly and the like at the later stage, and the vehicle can conveniently realize the function that the vehicle can be normally used only by starting the engine in the pure electric mode; in addition, by using the waste heat in the exhaust gas of the engine 500 to heat each component to be heated, the energy required for heating the components in winter can be greatly saved, and the pure electric endurance mileage of the vehicle at low temperature or low temperature can be effectively improved. For example, when the battery assembly 6 of the vehicle needs to be heated, the heat in the heat collection tank 2 in the heat exchange circuit 100 or the waste heat generated by the drive motor 9 in the motor circuit 400 may be selectively used for heating, and the heat may be also heated by the PTC heater 15 without storing heat or the like; in addition, when the driving motor 9 needs to be heated, the heat in the heat collection tank 2 in the heat exchange loop 100 can be selected for heating.

In other cases, when the battery assembly 6 needs to be cooled, the cooler 16 or the heat sink 12 in the motor circuit 400 may be used to cool the battery assembly 6, so as to meet the requirement of battery cooling in multiple scenarios.

Therefore, the purpose of saving heating energy consumption can be achieved, the driving motor 9, the battery assembly 6 and the like can rapidly enter the optimal working temperature, and 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 collecting 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.

By last, heat 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, through heat management system can realize multiple functions such as used heat energy storage, battery, motor and engine heating.

Specifically, when the engine 500 of the vehicle is started or the engine 500 is just shut off and the body temperature is high, the exhaust temperature of the engine 500 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 waste heat in the high-temperature exhaust gas of the engine 500 is recovered and stored by the heat collection tank 2, so as to be used for heating the battery assembly 6, the drive motor 9, the engine 500, and other components in the later period.

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, and for this purpose, the battery assembly 6 needs to be heated, specifically, the first control valve 5 is controlled to open a 1 → 4 directional passage, and the 2 ports and the 3 ports of the first control valve 5 are controlled to be closed, and the third pump 4 is controlled to run, so that the fluid flows to the battery circuit 200.

Further, the second control valve 14 is controlled to open the 2 → 4 directional path, the ports 1 and 3 are controlled to be closed, and the ports 2 and 4 of the third control valve 8 are controlled to be closed, and the first pump 7 is controlled to operate, so that the fluid with higher temperature is pumped into the battery circuit 200, and the battery assembly 6 is heated; the heated fluid flows back to the heat exchange loop 100 through the first four-way member 20 to continuously exchange heat and is stored in the heat collection tank 2, so that the battery assembly 6 can be heated by the heat of the fluid in the heat collection tank 2 alone; of course, by controlling the first control valve 5 to open the 1 → 4 and 1 → 3 directional paths and controlling the 2 port to remain closed, the heat exchanger 1 can recover the waste heat of the engine 500 on the one hand and heat the battery pack 6 on the other hand.

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 generated by the driving motor 9 may be used for heating, and for this reason, the motor circuit 400 is added to the battery circuit 200, specifically, the first control valve 5 is controlled to open the 1 → 3 directional path, the 2 ports and the 4 ports are closed, the second control valve 14 is controlled to open the 2 → 4 directional path, the 1 port and the 3 ports are closed, the first pump 7 is controlled to operate, and the third control valve 8 is controlled to open the 4 → 1 directional path, the 2 ports and the 3 ports are closed, the second pump 13 is controlled to operate, so that the waste heat of the driving motor 9 in the motor circuit 400 can heat the battery assembly 6.

Of course, the battery assembly 6 can also be heated by using the PTC heater 15, and then the second control valve 14 is controlled to open the 2 → 3 direction path, and the ports 1 and 4 are kept closed, and 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 fluid in the heat collection tank 2 is pumped into the cylinder of the engine 500 by the third pump 4, so that the cylinder of the engine 500 is heated, and the heated fluid is returned to the heat collection tank 2 through the first four-way member 20.

In the following, a second scenario is taken as an example, and in the second scenario, 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 4 ports and the 2 ports are kept closed, the second control valve 14 is controlled to open the 2 → 4 directional passage, the 1 ports and the 3 ports are kept closed, the first pump 7 is controlled to operate, the third control valve 8 is controlled to open the 4 → 3 directional passage, the 1 ports and the 2 ports are kept closed, the 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 battery assembly 6 and the driving motor 9 share the radiator 12 to radiate 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 2 → 4 directional passage, the 1 ports and the 3 ports are closed, the first pump 7 is controlled to operate, at this time, the third control valve 8 is controlled to open the 4 → 1 and the 3 → 1 directional passages, and the 1 ports and the 2 ports are closed, the second pump 13 is controlled to operate, so that the fluid in the battery circuit 200 is mixed with the water flow in the motor circuit 400, and then the cooling is achieved jointly by the radiator 12, 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.

When the battery assembly 6 needs to be cooled by the cooler 16 of the air-conditioning cold circuit 300, for example, the second control valve 14 is controlled to open the 2 → 1 direction passage, the ports 3 and 4 are controlled to be closed, 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 path, and the 3 and 4 ports are closed, and the second pump 13 is controlled to operate to only maintain the temperature equalizing function, so that the fluid in the motor loop 400 is kept warm.

When the cooling effect of the driving motor 9 is not obvious, the cooler 16 in the air-conditioning cooling circuit 300 may be used to cool, and at this time, the second control valve 14 is controlled to open the 2 → 4 and 2 → 1 directional paths, the 3 port is controlled to close, the first pump 7 is controlled to operate, the third control valve 8 is controlled to open the 1 → 3 directional path, the 2 port and the 4 port are controlled to close, the third control valve 8 is controlled to open the 4 → 1 directional path, and the 2 port and the 3 port are controlled to close, and the second pump 13 is controlled to operate, so that the cooler 16 may cool the driving motor 9 and the battery assembly 6 at the same time, but the load is large and the use scene is small.

The utility model also provides a vehicle, it includes any one of the above-mentioned technical scheme thermal management system.

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. 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 being "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 not being in direct contact but being in contact via 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 (10)

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 includes battery pack and PTC heater at least, through heat transfer circuit does battery pack heats, battery pack pass through the second control valve respectively with the PTC heater with cooler in the air conditioner cold circuit is connected, through the PTC heater does battery pack heats and passes through the cooler does battery pack cooling.

2. The thermal management system of claim 1, further comprising a motor loop connected to the battery loop, wherein the motor loop at least comprises a driving motor and a heat sink for cooling the driving motor, which are sequentially connected in series, and the driving motor is heated by the heat exchange loop.

3. The thermal management system of claim 2, wherein the motor circuit is coupled to the battery pack at an upstream location and a downstream location, respectively, and waste heat from the drive motor is used to heat the battery pack and to cool the battery pack via the heat sink.

4. The thermal management system of claim 2, wherein the motor circuit is connected to the battery circuit through a third control valve disposed between the drive motor and the first port of the heat sink.

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

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

7. The thermal management system of claim 6, wherein the first control valve is disposed at an outlet location of the heat collection tank, the heat collection tank being connected to an upstream location of the battery assembly via the first control valve, the downstream location 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 cold loop comprises a compressor and a condenser which are sequentially arranged 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. The thermal management system of claim 1, wherein the heat exchange circuit is further connected to a block of the engine through the first control valve.

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

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