Thermal management system of vehicle and vehicle

Abstract

The utility model relates to the technical field of vehicles, and provides a thermal management system of a vehicle and the vehicle. The thermal management system can comprise a first heat exchanger, a second heat exchanger, an engine, a first water pump, an air conditioner heat exchanger, a second water pump, a vehicle cooler, a compressor and an outdoor heat exchanger; the first heat exchanger comprises a first refrigerant inlet, a first refrigerant outlet, a first water inlet and a first water outlet; the second heat exchanger comprises a second refrigerant inlet, a second refrigerant outlet, a second water inlet and a second water outlet; the air conditioner heat exchanger comprises a third refrigerant inlet, a third refrigerant outlet, a third water inlet and a third water outlet, the third water inlet is connected with the second water outlet, and the third water outlet is connected with the second water inlet; the vehicle cooler comprises a fourth refrigerant inlet, a fourth refrigerant outlet, a fifth refrigerant inlet and a fifth refrigerant outlet, and the first refrigerant outlet is connected with the fourth refrigerant inlet; according to the thermal management system provided by the embodiment of the invention, heating in the vehicle can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and in particular to a thermal management system of a vehicle and the vehicle. Background Art

[0002] At present, hybrid vehicles are a new type of vehicles. Hybrid vehicles include multiple power sources, such as a fuel engine and an electric power source.

[0003] In existing vehicle thermal management systems, the interior of the vehicle can only be heated after the vehicle is started. However, for hybrid vehicles, when the vehicle switches to pure electric mode, the engine is not started, and the existing vehicle thermal management system cannot heat the interior of the vehicle. Utility Model Content

[0004] In order to solve the above technical problem or at least partially solve the above technical problem, the utility model provides a thermal management system of a vehicle and a vehicle.

[0005] In a first aspect, the present application provides a thermal management vehicle for a vehicle, and the thermal management system may include: a first heat exchanger, including a first refrigerant inlet, a first refrigerant outlet, a first water inlet and a first water outlet; a second heat exchanger, including a second refrigerant inlet, a second refrigerant outlet, a second water inlet and a second water outlet; an engine and a first water pump, the engine is connected in series between the first water inlet and the first water outlet, and the first water pump is connected in series between the engine and the first water inlet; an air conditioning heat exchanger, including: a third refrigerant inlet, a third refrigerant outlet, a third water inlet and a third water outlet, and the third water inlet is connected to the second water outlet. The third water outlet is connected to the second water inlet; a second water pump, the second water pump is connected in series between the third water outlet and the second water inlet; a vehicle cooler, including: a fourth refrigerant inlet, a fourth refrigerant outlet, a fifth refrigerant inlet and a fifth refrigerant outlet, the first refrigerant outlet is connected to the fourth refrigerant inlet; a water tank, the water tank is connected in series between the fourth refrigerant outlet and the first refrigerant inlet; a compressor, the refrigerant flowing through the fifth refrigerant outlet and the third refrigerant outlet flows to the compressor, and the refrigerant flowing through the compressor flows to the second refrigerant inlet; an outdoor heat exchanger, the outdoor heat exchanger is connected in series between the second refrigerant outlet and the third refrigerant inlet.

[0006] In this way, through the thermal management system provided by the present application, the vehicle cooler absorbs the heat of the water in the engine through the first heat exchanger, and then transfers the heat and the heat generated by the work of the compressor to the air-conditioning heat exchanger, thereby achieving the heating effect of the air-conditioning heat exchanger to realize heating of the vehicle cockpit.

[0007] In some embodiments of the present application, the thermal management system of the vehicle also includes: a four-way valve, the four-way valve including a first connection port, a second connection port, a third connection port and a fourth connection port, the first connection port is connected to the first refrigerant outlet, the second connection port is connected to the fourth refrigerant inlet, the third connection port is connected to the second water inlet, and the fourth connection port is connected to the third water outlet.

[0008] In some embodiments of the present application, the first water pump is formed as an electronic water pump.

[0009] In some embodiments of the present application, the thermal management system of the vehicle further includes: a first switch, wherein the first switch is connected in series between the outdoor heat exchanger and the third refrigerant inlet.

[0010] In some embodiments of the present application, the thermal management system of the vehicle further includes: a second switch, the fifth refrigerant outlet is connected to the outdoor heat exchanger, and the second switch is connected in series between the fifth refrigerant outlet and the outdoor heat exchanger.

[0011] In some embodiments of the present application, the thermal management system of the vehicle further includes: a first temperature sensor, which is disposed in the engine and is used to detect the temperature of the engine.

[0012] In some embodiments of the present application, the thermal management system of the vehicle further includes: a vehicle heater, wherein the vehicle heater is disposed on the air-conditioning heat exchanger.

[0013] In some embodiments of the present application, the thermal management system of the vehicle further includes: a controller, wherein the controller is electrically connected to the four-way valve.

[0014] In some embodiments of the present application, the thermal management system of the vehicle further includes: a third water pump, wherein the third water pump is connected in series between the water tank and the first refrigerant inlet.

[0015] In a second aspect, the present application also provides a vehicle, which includes a vehicle thermal management system and a frame provided by any of the above-mentioned schemes, and the vehicle thermal management system is arranged on the frame.

[0016] Among them, the technical effects brought about by any design scheme in the second aspect can refer to the technical effects brought about by different design methods in the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 A schematic diagram of a thermal management system of a vehicle with a four-way valve in a first communication state provided by some embodiments of the present application;

[0020] Figure 2 A schematic diagram of a thermal management system of a vehicle in which a four-way valve is in a second connection state provided in some embodiments of the present application.

[0021] Reference numerals:

[0022] 100. Thermal management system;

[0023] 110, first heat exchanger; 111, first refrigerant inlet; 112, first refrigerant outlet; 113, first water inlet; 114, first water outlet;

[0024] 120, second heat exchanger; 121, second refrigerant inlet; 122, second refrigerant outlet; 123, second water inlet; 124, second water outlet;

[0025] 130. Engine;

[0026] 140, first water pump;

[0027] 150, air conditioning heat exchanger; 151, third refrigerant inlet; 152, third refrigerant outlet; 153, third water inlet; 154, third water outlet;

[0028] 160, second water pump;

[0029] 170, vehicle cooler; 171, fourth refrigerant inlet; 172, fourth refrigerant outlet; 173, fifth refrigerant inlet; 174, fifth refrigerant outlet;

[0030] 180. Water tank;

[0031] 190. Compressor;

[0032] 200. Outdoor heat exchanger;

[0033] 210, four-way valve; 211, first connection port; 212, second connection port; 213, third connection port; 214, fourth connection port;

[0034] 220, first switch;

[0035] 230, second switch;

[0036] 240, the third water pump;

[0037] 250. Three-way valve. DETAILED DESCRIPTION

[0038] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0040] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0042] In the description of the embodiments of the present invention, the term "and / or" refers to and covers any and all possible combinations of one or more of the associated listed items. The term "and / or" is a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in the present invention generally indicates that the associated objects before and after are in an "or" relationship.

[0043] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the two are connected to each other and the relative position relationship after the connection remains unchanged. In addition, the directional terms mentioned in the embodiments of the present utility model, such as "inside", "outside", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present utility model.

[0044] In the description of the embodiments of the present utility model, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In the absence of further restrictions, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0045] In existing vehicle thermal management systems, the interior of the vehicle can only be heated after the vehicle is started. However, for hybrid vehicles, when the vehicle switches to pure electric mode, the engine is not started, and the existing vehicle thermal management system cannot heat the interior of the vehicle.

[0046] The present application provides a vehicle, which may be a hybrid vehicle or an extended-range vehicle, wherein a hybrid vehicle generally refers to a hybrid electric vehicle (HEV), that is, a traditional internal combustion engine (diesel engine or gasoline engine) and an electric motor are used as power sources, and some engines are modified to use other alternative fuels, such as compressed natural gas, propane and ethanol fuel. Extended-range vehicles belong to the category of electric vehicles. In fact, extended-range vehicles only run on the power of a generator. The output power of the vehicle's engine is only used to drive the generator to generate electricity. Among them, the vehicle includes a frame and a thermal management system 100, and the thermal management system 100 is arranged on the frame.

[0047] For details, please refer to Figure 1 and Figure 2The thermal management system 100 of the vehicle may include: a first heat exchanger 110, a second heat exchanger 120, an engine 130, a first water pump 140, an air conditioning heat exchanger 150, a second water pump 160, a vehicle cooler 170, a compressor 190 and an outdoor heat exchanger 200.

[0048] Among them, the first heat exchanger 110 may include a first refrigerant inlet 111, a first refrigerant outlet 112, a first water inlet 113 and a first water outlet 114. The first heat exchanger 110 performs heat exchange through adjacent water paths and refrigerant paths flowing through it. Specifically, the first heat exchanger 110 may be a water-to-water heat exchanger.

[0049] The second heat exchanger 120 may include a second refrigerant inlet 121, a second refrigerant outlet 122, a second water inlet 123 and a second water outlet 124. The second heat exchanger 120 exchanges heat through adjacent water paths and refrigerant paths flowing through it. Specifically, the second heat exchanger 120 may be a water-cooled condenser.

[0050] The engine 130 and the first water pump 140 are connected in series between the first water inlet 113 and the first water outlet 114 , and the first water pump 140 is connected in series between the engine 130 and the first water inlet 113 .

[0051] The air conditioning heat exchanger 150 may include a third refrigerant inlet 151 , a third refrigerant outlet 152 , a third water inlet 153 and a third water outlet 154 . The third water inlet 153 is connected to the second water outlet 124 , and the third water outlet 154 is connected to the second water inlet 123 .

[0052] The second water pump 160 is connected in series between the third water outlet 154 and the second water inlet 123 .

[0053] The vehicle cooler 170 (Chiller) may include a fourth refrigerant inlet 171 , a fourth refrigerant outlet 172 , a fifth refrigerant inlet 173 , and a fifth refrigerant outlet 174 , and the first refrigerant outlet 112 is in communication with the fourth refrigerant inlet 171 .

[0054] The refrigerant flowing through the fifth refrigerant outlet 174 and the third refrigerant outlet 152 flows toward the compressor 190 , and the refrigerant flowing through the compressor 190 flows toward the second refrigerant inlet 121 .

[0055] The outdoor heat exchanger 200 is connected in series between the second refrigerant outlet 122 and the third refrigerant inlet 151 .

[0056] For details, please refer to Figure 1When the vehicle's cockpit needs to be heated and the engine 130 is not started, the thermal management system 100 has a first heating mode, the first water pump 140 pumps the engine 130 water to the first water inlet 113 of the first heat exchanger 110, and the engine 130 water is then returned to the engine 130 by the first heat exchanger 110, thereby forming an engine 130 water circuit circulation, and the first heat exchanger 110 absorbs the heat of the engine 130 water.

[0057] The refrigerant in the water tank 180 flows to the first refrigerant inlet 111 of the first heat exchanger 110 , and then flows from the first refrigerant outlet 112 to the fourth refrigerant inlet 171 of the vehicle cooler 170 , and then returns to the water tank 180 from the fourth refrigerant outlet 172 to form a refrigerant circulation, so that the vehicle cooler 170 can absorb the heat of the first heat exchanger 110 .

[0058] The vehicle cooler 170 absorbs heat, and the refrigerant in the vehicle cooler 170 flows from the fifth refrigerant outlet 174 to the compressor 190. The compressor 190 pressurizes the refrigerant (the heat generated by the compressor 190 pressurizing the refrigerant flows to the second heat exchanger 120), flows to the second refrigerant inlet 121 of the second heat exchanger 120, and then flows from the second refrigerant outlet 122 of the second heat exchanger 120 to the outdoor heat exchanger 200, and then flows from the outdoor heat exchanger 200 to the vehicle cooler 170, forming a refrigerant cycle.

[0059] The second water pump 160 drives water to flow through the second heat exchanger 120 to absorb heat, and then flows to the third water inlet 153 of the air conditioning heat exchanger 150, and then flows out from the third water outlet 154 of the air conditioning heat exchanger 150. In this way, through the heat exchange between the first heat exchanger 110 and the engine 130, the heat exchange between the vehicle cooler 170 and the first heat exchanger 110, the heat exchange between the second heat exchanger 120 and the vehicle cooler 170, and the heat exchange between the air conditioning heat exchanger 150 and the second heat exchanger 120, the heat exchange between the engine 130 water and the air conditioning heat exchanger 150 is realized, thereby achieving heating in the cockpit.

[0060] In some embodiments of this application, please continue to refer to Figure 1 The thermal management system 100 may also include a four-way valve 210, which may include a first connection port 211, a second connection port 212, a third connection port 213 and a fourth connection port 214. The first connection port 211 is connected to the first refrigerant outlet 112, the second connection port 212 is connected to the fourth refrigerant inlet 171, the third connection port 213 is connected to the second water inlet 123, and the fourth connection port 214 is connected to the third water outlet 154.

[0061] When the thermal management system 100 is in the first heating mode, the four-way valve 210 is in the first connected state. Specifically, the first connection port 211 of the four-way valve 210 is connected to the second connection port 212 , and the third connection port 213 is connected to the fourth connection port 214 .

[0062] When the vehicle's cabin needs to be heated, the engine 130 is not started, and the operating temperature of the compressor 190 is not reached, the thermal management mode has a second heating mode, see Figure 2 , the four-way valve 210 is in the second connected state, specifically, the first connection port 211 of the four-way valve 210 is connected to the fourth connection port 214, the second connection port 212 is connected to the third connection port 213, after the first heat exchanger 110 exchanges heat with the engine 130, the refrigerant (the refrigerant can be water) in the first heat exchanger 110 flows from the first refrigerant outlet 112 to the second water inlet 123 of the second heat exchanger 120, and flows from the second water outlet 124 to the air-conditioning heat exchanger 150, so as to heat the third water inlet 153 of the air-conditioning heat exchanger 150, and the refrigerant then flows from the third water outlet 154 of the air-conditioning heat exchanger 150 to the water tank 180, forming a refrigerant circulation.

[0063] In some embodiments of this application, please continue to refer to Figure 1 and Figure 2 The first water pump 140 is formed as an electronic water pump. By forming the first water pump 140 as an electronic water pump, when the engine 130 is not started, water from the engine 130 can still be transported to the first heat exchanger 110 .

[0064] In some other embodiments of the present application, the second water pump 160 is formed as an electronic water pump.

[0065] In some embodiments of this application, please continue to refer to Figure 1 and Figure 2 The thermal management system 100 may further include a first switch 220, which is connected in series between the outdoor heat exchanger 200 and the third refrigerant inlet 151. When the interior of the vehicle needs to be cooled, the first switch 220 is turned on to allow heat exchange between the air conditioning heat exchanger 150 and the outdoor heat exchanger 200.

[0066] Specifically, the refrigerant in the air-conditioning heat exchanger 150 flows to the compressor 190 through the third refrigerant outlet 152, then flows to the second refrigerant inlet 121 of the second heat exchanger 120, flows out from the second refrigerant outlet 122, and flows to the outdoor heat exchanger 200 for heat exchange. The refrigerant then flows from the outdoor heat exchanger 200 to the air-conditioning heat exchanger 150, thereby realizing heat exchange of the air-conditioning heat exchanger 150.

[0067] When the thermal management system 100 is in cooling mode, the first switch 220 is in an open state; when the thermal management system 100 is in a first heating mode or a second heating mode, the first switch 220 is in a closed state. Specifically, the first switch 220 can be a solenoid valve.

[0068] In some embodiments of this application, please continue to refer to Figure 1 The thermal management system 100 may further include a second switch 230 between the fifth refrigerant outlet 174 and the outdoor heat exchanger 200. It should be noted that a battery may be connected in series between the vehicle cooler 170 and the water tank 180. When the battery needs to be cooled, the second switch 230 may be turned on so that the refrigerant from the outdoor heat exchanger 200 may flow through the vehicle cooler 170 to cool the battery.

[0069] In some embodiments of this application, please continue to refer to Figure 1 The thermal management system 100 may further include a first temperature sensor, which is disposed on the engine 130 and is used to detect the temperature of the engine 130. It should be noted that when the temperature of the water is greater than -18°C, the refrigerant absorbs the heat of the water. When the temperature of the engine 130 is less than -18°C, the engine 130 still needs to be started first. Therefore, by providing the first temperature sensor, idling of the thermal management system 100 can be avoided.

[0070] In some embodiments of this application, please continue to refer to Figure 1 The thermal management system 100 may also include a car heater (Positive Temperature Coefficient, PTC), which is a special heater that can automatically control the heating efficiency at a specific temperature to avoid overheating. The car heater is a device for heating the interior of a vehicle, and is composed of a heating element, a fan, a controller, and a mounting box. Therefore, when the thermal management system 100 is in the first heating mode or the second heating mode, the heating efficiency can be improved by setting the car heater.

[0071] In some embodiments of this application, please continue to refer to Figure 1 The thermal management system 100 may further include a controller, which is electrically connected to the four-way valve 210 to control the communication between different interfaces of the four-way valve 210 .

[0072] In some embodiments of this application, please continue to refer to Figure 1 The thermal management system 100 may further include a third water pump 240, which is connected in series between the water tank 180 and the first refrigerant inlet 111. Thus, the refrigerant in the water tank 180 is driven to flow to the first heat exchanger 110 by providing the third water pump 240.

[0073] The engine 130 and the outdoor heat exchanger 200 are connected in series to achieve normal heat dissipation of the engine 130 , and the engine 130 , the outdoor heat exchanger 200 and the first heat exchanger 110 are connected via a three-way valve 250 .

[0074] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A thermal management system for a vehicle, characterized in that: include: The first heat exchanger comprises a first refrigerant inlet, a first refrigerant outlet, a first water inlet and a first water outlet; The second heat exchanger comprises a second refrigerant inlet, a second refrigerant outlet, a second water inlet and a second water outlet; an engine and a first water pump, wherein the engine is connected in series between the first water inlet and the first water outlet, and the first water pump is connected in series between the engine and the first water inlet; The air conditioning heat exchanger comprises: a third refrigerant inlet, a third refrigerant outlet, a third water inlet and a third water outlet, wherein the third water inlet is connected to the second water outlet, and the third water outlet is connected to the second water inlet; a second water pump, the second water pump being connected in series between the third water outlet and the second water inlet; A vehicle cooler, comprising: a fourth refrigerant inlet, a fourth refrigerant outlet, a fifth refrigerant inlet and a fifth refrigerant outlet, wherein the first refrigerant outlet is connected to the fourth refrigerant inlet; A water tank, the water tank is connected in series between the fourth refrigerant outlet and the first refrigerant inlet; A compressor, the refrigerant flowing through the fifth refrigerant outlet and the third refrigerant outlet flows to the compressor, and the refrigerant flowing through the compressor flows to the second refrigerant inlet; An outdoor heat exchanger is connected in series between the second refrigerant outlet and the third refrigerant inlet.

2. The thermal management system of a vehicle according to claim 1, characterized in that: Also includes: A four-way valve, the four-way valve includes a first connection port, a second connection port, a third connection port and a fourth connection port, the first connection port is connected to the first refrigerant outlet, the second connection port is connected to the fourth refrigerant inlet, the third connection port is connected to the second water inlet, and the fourth connection port is connected to the third water outlet.

3. The thermal management system for a vehicle according to claim 1, characterized in that: The first water pump is formed as an electronic water pump.

4. The thermal management system for a vehicle according to claim 1, characterized in that: Also includes: A first switch is connected in series between the outdoor heat exchanger and the third refrigerant inlet.

5. The thermal management system for a vehicle according to claim 1, characterized in that: Also includes: A second switch, the fifth refrigerant outlet is connected to the outdoor heat exchanger, and the second switch is connected in series between the fifth refrigerant outlet and the outdoor heat exchanger.

6. The thermal management system for a vehicle according to claim 1, characterized in that: Also includes: A first temperature sensor is disposed in the engine and is used to detect a temperature of the engine.

7. The thermal management system for a vehicle according to claim 1, characterized in that: Also includes: A car heater is arranged on the air-conditioning heat exchanger.

8. The thermal management system for a vehicle according to claim 2, characterized in that: Also includes: A controller is electrically connected to the four-way valve.

9. The thermal management system for a vehicle according to claim 1, characterized in that: Also includes: A third water pump is connected in series between the water tank and the first refrigerant inlet.

10. A vehicle, characterized in that: include: A thermal management system for a vehicle as claimed in any one of claims 1 to 9; and a vehicle frame, wherein the thermal management system for the vehicle is arranged on the vehicle frame.

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