Thermal management system

Abstract

A thermal management system comprising: a coolant circulation line (200) comprising a compressor (210), a water-cooled condenser (220), a first expansion valve (225), an air-cooled condenser (230), a second expansion valve (240), an evaporator (242), a coolant heat exchanger (233) for the mutual exchange of heat between a coolant flowing into the second expansion valve (240) and a coolant expelled from the evaporator (242), and a first coolant bypass line (232) that allows the coolant flowing through the water-cooled condenser (220) to bypass the first expansion valve and the air-cooled condenser (230) and to circulate the coolant to cool the interior; a heat line (301) that heats the interior by circulating cooling water that has exchanged heat with the coolant through the water-cooled condenser (220);and a cooling line (302) that cools a battery (350) and an electrical component (460) by circulating air or cooling water that exchanges heat with the coolant.;

Description

[Technical field]

[0001] The present invention relates to a thermal management system, more specifically to a system for managing heat from electrical components and a battery in a vehicle, as well as for cooling and heating the vehicle. [State of the art]

[0002] In recent years, electric vehicles have been highlighted as solutions to problems such as the implementation of environmentally friendly technologies and the energy shortage in the automotive sector.

[0003] Electric vehicles use a motor powered by energy from a battery or fuel cell, resulting in low carbon emissions and quiet operation. Furthermore, electric vehicles are environmentally friendly because they use motors with higher energy efficiency than conventional engines.

[0004] However, thermal management is crucial because electric vehicles generate a significant amount of heat during battery and drive motor operation. Since recharging the battery takes a long time, efficient battery management is also essential. This is particularly important in electric vehicles because a refrigerant compressor, used for climate control, is also electrically driven. Furthermore, the drive motor must be cooled to an appropriate temperature, as it and the inverter generate relatively more heat than other electrical components like the battery and charger. Therefore, there is a need to increase the cooling capacity of a heat exchanger to cool the drive motor. [Previous technical document][Patent document]

[0005] KR 2018-0007021 A (2018.01.22) [Revelation][Technical Problem]

[0006] It is an object of the present invention to provide a thermal management system that can manage heat from electrical components and a battery in a vehicle, as well as the cooling and heating of the vehicle.

[0007] Furthermore, it is an object of the present invention to provide a thermal management system that can increase the service life of a battery by reducing energy consumption. [Technical solution]

[0008] In general terms, a thermal management system includes: a coolant circulation line. 200 , which have a compressor 210, a water-cooled condenser 220 , a first expansion valve 225, an air-cooled condenser 230 , a second expansion valve 240, an evaporator 242, a coolant heat exchanger 233 for mutual heat exchange between a coolant flowing into the second expansion valve 240 and a coolant flowing from the evaporator 242 is expelled, and a first coolant bypass line 232 , which is the coolant that passes through the water-cooled condenser 220 flows, allows the first expansion valve and the air-cooled condenser to pass through. 230 to bypass and circulate the coolant to cool the interior; contains a heat conductor 301 , which heats the interior by circulating coolant, which exchanges heat with the coolant through the water-cooled condenser 220 ; and a cooling line 302, which cools a battery 350 and an electrical component 460 by circulating air or the cooling water, which is heat exchanged with the coolant.

[0009] The first coolant bypass line232 may not be used in a cooling mode, and may allow the coolant to flow in a heating mode.

[0010] The first coolant bypass line 232 may not be used in a cooling mode, and may allow the coolant to flow in a dehumidifying heating mode.

[0011] The coolant heat exchanger 233 may exchange heat in a cooling mode between a coolant flowing into the second expansion valve 240 and coolant flowing from the evaporator. 242 is expelled, and may not exchange heat in a heating mode between the coolant flowing into the second expansion valve 240 and the coolant coming from the evaporator 242 is expelled.

[0012] The coolant circulation line 200 may further include a check valve 231 which, in one flow direction of the coolant, is located between a rear side of the air-cooled condenser 230and a rear side of the coolant bypass line 232 is installed.

[0013] Cooling line 302 may be a first connecting line 302-1 , which branches off from one side of the cooling line 302 and connects to the heating line 301 is connected; and a second connecting line 302-2, which branches off from the other side of the cooling line 302 and connects to the heating line 301 is connected, contained.

[0014] The first connecting line 302-1 , the second connecting line 302-2, and the heating line 301 may be connected to a first directional switching valve 410 , and the cooling line 302 and the heating line 301 may be connected to each other or separated from each other by means of the first directional switching valve 410 .

[0015] The electrical component 460 may be located in the second connecting line 302-2.

[0016] The cooling line 302 may further connect to a fourth connecting line 302-4, which connects to the first connecting line. 302-1 and connects the second connecting line 302-2 together, and a shut-off valve 360 , which is installed in the fourth connecting line 302-4 and parallel to the first directional switching valve 410 is arranged, contained.

[0017] Cooling line 302 may also have a coolant temperature sensor. 461 included, which is installed in one direction of cooling water flow upstream of the electrical component 460.

[0018] The coolant circulation line 200 a third expansion valve 251 may be used to throttle, divert or block a flow of coolant from the water-cooled condenser 220 is emitted, and a cooler 252, which exchanges heat between the coolant expelled by the third expansion valve 251 and the cooling water of the cooling line 302.

[0019] The coolant heat exchanger 233 may be connected in parallel with the air-cooled condenser. 230 and the cooler 252 be connected.

[0020] The cooling line 302 may contain a third connecting line 302-3, which is connected in parallel to the battery 350 and passes through the radiator. 252 The third connecting line 302-3 is connected to the cooling line 302 via a third reversing valve 330, so that the cooling water may flow into the third connecting line 302-3 or the flow may be blocked by means of the third reversing valve 330.

[0021] The cooling line 302 may contain an electric radiator 310 for cooling the cooling water using air.

[0022] The heating pipe 301It may have a heating device 440 that heats the interior using heated air by exchanging heat with cooling water that passes through the water-cooled condenser. 220 Heat is exchanged with the coolant, and air flowing into the interior, and a coolant heater. 430 , which is arranged in the direction of flow of the cooling water in front of the heating device 440 in order to heat the cooling water.

[0023] The heating pipe 301 may include a heating device 440 that heats the interior using heated air by exchanging heat between the cooling water, which is heat-exchanged with the coolant through the water-cooled condenser 220 , and air flowing into the interior, and may further include a 470 air heating type heater, which is separate from the heating line. 301is configured and directly heats the air flowing into the interior to heat the interior.

[0024] The second expansion valve 240 may be located between the coolant heat exchanger 230 and the evaporator 442, the second expansion valve 240 may be a mechanical expansion valve 240b in which a flow rate for throttling the coolant is mechanically adjusted according to a temperature of the flowing coolant, and the coolant circulation line 200 may also include a second coolant bypass line 234 , which is connected in parallel to the mechanical expansion valve 240b; and a three-way switching valve 240-1 , which at a point where the coolant branches off to the side of the mechanical expansion valve 240b and the second coolant bypass line 234 , is installed, included.

[0025] The second expansion valve 240 may be located between the coolant heat exchanger 233 and the evaporator. 242 The second expansion valve 240 may be a mechanical expansion valve 240b in which a flow rate for throttling the coolant is mechanically adjusted according to a temperature of the flowing coolant, and the coolant circulation line 200 may also include a second coolant bypass line 234 , which is connected in parallel to the mechanical expansion valve 240b; a first opening / closing valve 240-2 installed in the second coolant bypass line 234 , after the coolant branches off; and a second opening / closing valve 240-3 Installed on the side of the mechanical expansion valve 240, after the coolant is branched off.

[0026] The second expansion valve 240 may be located between the coolant heat exchanger 233 and the evaporator. 242The second expansion valve 240 may be a mechanical expansion valve integrated with an electronic opening / closing valve. 240c , in which a flow rate for throttling the coolant is mechanically adjusted according to a temperature of the flowing coolant, and the electronic opening / closing valve is integrally formed, and the coolant circulation line 200 may also include a second coolant bypass line 234 , which is connected in parallel to the mechanical expansion valve and integrated with the electronic opening / closing valve 240c is; and a first opening / closing valve 240-2 is installed in the second coolant bypass line. 234 , after the coolant has been diverted. [Beneficial effects]

[0027] The thermal management system according to the present invention can manage the heat of the electrical components and the battery in the vehicle, as well as the cooling and heating of the vehicle.

[0028] Furthermore, the thermal management system according to the present invention can improve cooling and heating performance and increase the battery's service life by reducing energy consumption. List of characters The Fig. Figure 1 is a configuration diagram illustrating a thermal management system according to an embodiment of the present invention. The Fig. Figure 2 is a configuration diagram illustrating an operating state in a maximum cooling mode of the thermal management system according to an embodiment of the present invention. The Fig. Figure 3 is a configuration diagram illustrating an operating state in a mild cooling mode of the thermal management system according to an embodiment of the present invention. The Fig. Figure 4 is a configuration diagram illustrating an operating state in a battery-dedicated cooling mode of the thermal management system according to an embodiment of the present invention. The Fig. Figure 5 is a configuration diagram illustrating an operating state in a maximum heating mode of the thermal management system according to an embodiment of the present invention. The Fig. Figure 6 is a configuration diagram illustrating an operating state in a battery heating mode of the thermal management system according to an embodiment of the present invention. The Fig. Figure 7 is a configuration diagram illustrating an operating state in a mild heating mode of the thermal management system according to an embodiment of the present invention. The Fig. Figure 8 is a configuration diagram illustrating an operating state in a dehumidification heating mode of the heat management system according to an embodiment of the present invention. The Fig. Figure 9 is a configuration diagram illustrating a thermal management system according to another embodiment of the present invention. The Fig. 10 and Fig. Figure 11 are conceptual diagrams illustrating the flow of cooling water in a cooling water circulation line according to the opening and closing of a shut-off valve in the Fig. 9 illustrate. The Fig. 12 to Fig. Figure 15 are configuration diagrams illustrating examples of a coolant circulation line according to the present invention. [Best Design]

[0029] A thermal management system according to the present invention, which has the configuration described above, is described in detail below with reference to the accompanying figures.

[0030] The Fig. Figure 1 is a configuration diagram illustrating a thermal management system according to an embodiment of the present invention.

[0031] With regard to the Fig. 1. A thermal management system according to the present invention may generally include a coolant circulation line. 200 , through which a coolant circulates to cool an interior space, and a coolant circulation line 300 , through which coolant circulates to heat the interior and cool parts. The coolant circulation line may also contain 300 a heating pipe 301for heating the interior and a cooling line 302 for cooling an electrical component 460 and a battery 350.

[0032] The coolant circulation line 200 likes a compressor 210, a water-cooled condenser 220 , a first expansion valve 225, an air-cooled condenser 230 , a check valve 231, a first coolant bypass line 232 , a coolant branch piece 241, a second expansion valve 240, an evaporator 242 , a coolant heat exchanger 233, an accumulator 260, a third expansion valve 251 and a cooler 252 contain.

[0033] The compressor 210 may be an electric compressor, driven by the supply of energy, and serves to draw in and compress refrigerant and to move the refrigerant towards the water-cooled condenser. 220 to expel.

[0034] The water-cooled condenser 220 It serves to carry out a heat exchange of the coolant discharged by the compressor 210 with cooling water in order to condense the coolant into a liquid coolant and to transfer the liquid coolant towards the first expansion valve 225.

[0035] The first expansion valve 225 may serve to throttle or redirect the coolant or to block a flow of coolant, and may be located in a flow direction of the coolant downstream of the water-cooled condenser. 220 be arranged.

[0036] The air-cooled condenser 230 It serves as a condenser or an evaporator, and a function of the air-cooled condenser. 230 This may vary depending on the role of the first expansion valve 225. That is, if the coolant circulation line 200When used as an air conditioning loop, the first expansion valve 225 is fully open to allow the refrigerant to pass through, and the air-cooled condenser 230 serves together with the water-cooled condenser 220 as a capacitor, and if the coolant circulation line 200 When used as a heat pump loop, the first expansion valve 225 throttles the refrigerant and the air-cooled condenser 230 It serves as an evaporator. Additionally, the air-cooled condenser may be used. 230 They can be cooled or heated by external air in an air-cooled manner.

[0037] The check valve 231 serves to prevent the coolant from flowing backwards and is located, in the direction of coolant flow, at the rear of the air-cooled condenser. 230 It must be installed to prevent the coolant from entering an exhaust side of the air-cooled condenser. 230 flows.

[0038] The first coolant bypass line 232 is connected in parallel to the air-cooled condenser 230 , and the first coolant bypass line 232 has one end connected to the first expansion valve 225, and the other end, in the direction of coolant flow, is connected to the back of the check valve 231, so that the coolant from the water-cooled condenser 220 Expelled coolant selectively passes through the air-cooled condenser 230 or the first coolant bypass line 232 may be routed. That is to say, the first coolant bypass line 232 It may be the coolant that cools the water-cooled condenser 220 What happened allows the first expansion valve 225 and the air-cooled condenser to be installed. 230 to circumvent this. Here, the coolant may only flow towards the air-cooled condenser. 230The coolant flows through the actuation of the first expansion valve 225 and may not flow into the first coolant bypass line 332. Thus, it may flow towards the air-cooled condenser. 230 The flow of coolant through the first expansion valve 225 may be throttled, or it may flow through the first expansion valve 225 without being throttled. Alternatively, the coolant may not flow towards the air-cooled condenser when the first expansion valve 225 is actuated. 230 , and the coolant may only enter the first coolant bypass line. 232 flow, and thus, while the coolant flows towards the first coolant bypass line 232 The coolant passed through the first expansion valve 225 may flow.

[0039] The coolant branch piece 241 may be formed, in the direction of coolant flow, at a rear side of a point where a rear side of the air-cooled condenser is located. 230 and the first coolant bypass line 232 meet, and the coolant branch piece 241 may be branched into two lines, so that one line connects to the evaporator. 242 is connected and the other line is connected to the cooler 252 is connected.

[0040] The second expansion valve 240 and the third expansion valve 251 may serve to throttle or allow the coolant to pass through, or to block the flow of the coolant. Furthermore, the second expansion valve 240 and the third expansion valve 251 may be configured in parallel. That is, a coolant line may branch off from the coolant branch piece 241 into two lines, with the second expansion valve 240 located in one of the two branched coolant lines and the third expansion valve 251 located in the other coolant line. Thus, the second expansion valve 240 may be located upstream of the evaporator. 242 be arranged, and the third expansion valve 251 may be in front of the radiator 252 be arranged.

[0041] The evaporator 242 is located, in the direction of coolant flow, at the rear of the second expansion valve 240 and is within an air conditioning system 150a vehicle provided so that air flowing by means of a blower 152 of the air conditioning system passes through the evaporator 242 It is cooled and supplied to the interior of the vehicle in order to be used for cooling the interior of the vehicle.

[0042] The coolant heat exchanger 233 serves to improve the cooling performance by carrying out a heat exchange between the coolant flowing into the second expansion valve 240 and the coolant coming from the evaporator. 242 is expelled. An inlet-side coolant line runs here, through which the coolant enters the evaporator. 242 flows and connects the coolant branch piece 241 and the second expansion valve 240, through the coolant heat exchanger 233, an exhaust-side coolant line through which the coolant flows from the evaporator 242 is emitted and which the evaporator 242and connects to the accumulator 260, passes through the coolant heat exchanger 233, and heat exchange may take place between the coolants passing through the inlet-side coolant line and the outlet-side coolant line. Thus, the coolant may be further cooled by the coolant heat exchanger 233 before flowing into the second expansion valve 240, the cooling capacity through the evaporator. 242 may be improved, and the efficiency of the cooling system may be improved.

[0043] In particular, the coolant heat exchanger 233 is parallel to the air-cooled condenser. 230 and the cooler 252 connected. Thus, the coolant heat exchanger 233 is not in series with the coolant line between the air-cooled condenser. 230 and the cooler 252 arranged, but is next to the evaporator 242arranged horizontally. When the coolant heat exchanger 233 is in series between the air-cooled condenser 230 and the cooler 252 If the refrigerant heat exchanger 233 is arranged in parallel, the heating capacity may be reduced by acting as a pressure drop on a low-pressure side in heating mode. In contrast, if the refrigerant heat exchanger 233 is connected in parallel, both the heating and cooling capacities are increased, and this is because there is no refrigerant heat exchanger 233 between the condensers. 220 and 230 and the cooler 252 in the coolant flow during heating mode.

[0044] The cooler 252 It may be located, in the direction of coolant flow, at the rear of the third expansion valve 251, and may perform heat exchange with the cooling water to cool the cooling water. As a result, the second expansion valve 240 and the evaporator form 242a compilation, the third expansion valve 251 and the cooler 252 They form another assembly, and the two assemblies are configured in parallel in the coolant line. Furthermore, the coolant line may be located at the rear of the evaporator, in the direction of coolant flow. 242 and the cooler 252 They must be joined together to form a single coolant line.

[0045] Furthermore, the accumulator 260 may separate a liquid refrigerant from a gaseous refrigerant and supply only the gaseous refrigerant to the compressor 210. Here, the accumulator 260 may be arranged at and connected to a point where the rear of the evaporator 242 and the rear center pipe of the cooler 252 are joined together, and the accumulator 260 may be arranged, in the direction of flow of the coolant, at the front of the compressor 210.

[0046] The heating pipe 301 might have a water-cooled capacitor 220 , a first cooling water pump 450 , a cooling water heater 430 , a heating unit 440 and a first reversing valve 410 contain.

[0047] The water-cooled condenser 220 This allows heat to be exchanged between the coolant and cooling water as described above.

[0048] The first cooling water pump 450 is a means of pumping the cooling water so that the cooling water flows along the heating pipe 301 circulates, and may be arranged in the direction of flow of the cooling water on the back of the water-cooled condenser and be installed in the cooling water line.

[0049] The cooling water heater 430is a device for heating the cooling water, and may be arranged, in the direction of flow of the cooling water, on and connected to the rear of the first cooling water pump 450 and the front of the heating unit 440. In addition, the cooling water heater may 430 It can be operated when the temperature of the cooling water is a specific temperature or less, and may be implemented in various ways, such as an induction heater, a seed heater, a PTC heater, a film heater, or the like, which can generate heat by applying energy.

[0050] The heating unit 440 may be in the air conditioning system 150The air flowing due to the blower 152 may be heated by the heating device 440 and directed into the vehicle's interior to be used for heating the vehicle's interior. Furthermore, the heating device 440 may be located on and connected to the rear of the coolant heater. 430 in the direction of flow of the cooling water.

[0051] The first directional switching valve 410 may be between the heating unit 440 and the water-cooled condenser 220 be installed, and may be set up to handle the heating line 301 and to optionally connect or disconnect the cooling line 302 described later. In more detail, the first directional switching valve 410 in the heating pipe 301 installed so that two cooling water pipes are connected to the first reversing valve 410 can be connected, a first connecting line302-1 , which branches off from one side of cooling line 302, can be connected to the first directional switching valve 410 be connected, and a second connecting line 302-2, branching off from the other side of the cooling line 302, can be connected to the first directional switching valve 410 be connected. Thus, four cooling water lines are connected to the first reversing valve. 410 connected, so that they connect at the first directional switching valve 410 meet, and the first directional switching valve 410 It may be a four-way reversing valve capable of setting a state in which the four cooling water lines are either connected or blocked.

[0052] The cooling water line 302 may have an electric radiator 310, a reservoir tank 370, a second reversing valve 320 , a second cooling water pump 420, the first reversing valve 410, an electrical component 460, a first cooling water merging 313, a second cooling water merging 312 , a third cooling water pump 340 , a 350 battery, the radiator 252 , and a third directional switching valve 330.

[0053] The electric radiator 310 is a radiator that cools the cooling water, which is heat exchanged with the electrical component 460 or the battery 350, and can be cooled in an air-cooled manner by a cooling fan 311.

[0054] The reservoir tank 370 can serve to store the cooling water and to supplement insufficient cooling water in the cooling water line, and may, in the direction of flow of the cooling water, be located in a cooling water line upstream of the second cooling water pump 420 and the third cooling water pump. 340 be installed.

[0055] The second directional switching valve 320is installed in cooling line 302, so that two cooling water pipes are connected to the second reversing valve. 320 are connected, and the first directional switching valve 410 and the second reversing valve 320 can be connected to the first connecting line 302-1 be connected so that the heating line 301 and the cooling line 302 are connected. Thus, three cooling water lines are connected to the second reversing valve. 320 connected in order to connect to the second directional switching valve 320 to meet, and the second directional switching valve 320 It may be a three-way reversing valve capable of setting a state in which the three cooling water lines are either connected or blocked.

[0056] The second cooling water pump 420 is a means of pumping the cooling water so that the cooling water circulates along the cooling line 302. The second cooling water pump 420 is also located in the first connecting line. 302-1 between the first directional switching valve 410 and the second directional switching valve 320 installed so that the cooling water is diverted from the second reversing valve by actuation of the second cooling water pump 420 320 in the direction of the first reversing valve 410 can flow.

[0057] The first directional switching valve 410 It's the same as described in the heating line. 301 .

[0058] The electrical component 460 is in the second connecting line 302-2, which is the first directional switching valve. 410 and the second cooling water merging 312The electrical component 460 is connected, arranged, and can be cooled by the cooling water. Furthermore, the electrical component 460 can be a drive motor, an inverter, an onboard charger (OBC), or the like.

[0059] The third cooling water pump 340 This is a means of pumping the cooling water so that the cooling water circulates along cooling line 302. In addition, there is the third cooling water pump. 340 installed in the cooling water line between the first cooling water junction 313 and the battery 350, so that the cooling water from the third cooling water pump 340 to the battery 350.

[0060] Battery 350 is an energy source for the vehicle and can power various electrical components 460 within the vehicle. Alternatively, battery 350 can be used to store electricity by connecting it to the fuel cell or to store externally supplied electricity. Furthermore, battery 350 can be installed in a coolant line between the third coolant pump. 340 and the third direction-changeover valve 330. Thus, the battery 350 can be cooled or heated by heat exchange with the flowing cooling water.

[0061] The first cooling water merging 313 is, in the direction of flow of the cooling water, in a cooling water line at the end of the second directional switching valve. 320The first cooling water junction 313 is installed and connected, so that three cooling water lines meet. Thus, the first cooling water junction 313 is installed, so that both sides of it are connected to cooling line 302, and the third junction 302-3 can be connected to one of its lower sides. Here, the third junction 302-3 can be connected to run through the radiator. 252 to lead.

[0062] The second cooling water merging 312 can be installed at a point where the back of the second connecting line 302-2 meets the cooling line 302, and is connected so that three cooling water lines meet at the second cooling water junction. 312 meet. Thus, the second cooling water merging is 312 installed so that both sides of it are connected in the cooling line 302, and the second connecting line 302-2 can be connected to an upper side of it.

[0063] The cooler 252 is the same as in the heating pipe 301 described.

[0064] The third reversing valve 330 is located in the coolant line between the battery 350 and the second coolant junction. 312 installed, and two cooling water pipes are connected to the third reversing valve 330, and the third connecting line 302-3 is connected to an upper side of the third reversing valve 330, so that the battery 350 and the third connecting line 302-3 can be connected in parallel. The second reversing valve can then 320 It should be a three-way reversing valve capable of setting a state in which the three cooling water lines are either connected or blocked.

[0065] Furthermore, the air conditioning 150A blower 152 is installed on one side of it to blow air, and a temperature control flap 151 can be installed inside the air conditioner. 150 be installed. In addition, the evaporator can 242 and the heating device 440, which is located in the air conditioning system, is arranged and configured so that the air expelled by the blower 152 according to the actuation of the temperature control flap 151 passes only through the evaporator 242 It can be directed and then introduced into the interior, or it can be routed through the evaporator. 242 flow and then flow through the heating device 440 to be introduced into the interior.

[0066] The following describes an operation according to the operating mode of the thermal management system according to an embodiment of the present invention. Maximum cooling mode

[0067] The Fig. Figure 2 is a configuration diagram illustrating an operating state in a maximum cooling mode of the thermal management system according to an embodiment of the present invention.

[0068] With regard to the Fig. 2. The compressor 210 operates in the coolant circulation line. 200 A high-temperature, high-pressure refrigerant is expelled from compressor 210. Furthermore, the refrigerant expelled by compressor 210 undergoes heat exchange with cooling water in the water-cooled condenser. 220 cooled. Then it flows into the water-cooled condenser. 220 Cooled coolant passes through the first expansion valve 225 in a fully open state towards the air-cooled condenser. 230 and flows into the air-cooled condenser 230 , and is cooled by heat exchange with external air in the air-cooled condenser 230Thus, both the water-cooled condenser and the water-cooled condenser serve this purpose. 220 than the air-cooled condenser 230 as condensers for condensing the coolant. The condensed coolant is then diverted from the coolant branch piece 241, so that part of the coolant flows through the coolant heat exchanger 233 and then through the second expansion valve 240, where it is throttled to expand the coolant. Afterward, the expanded coolant flows through the evaporator. 242 and exchanges heat with that from the air conditioning blower 152. 150 The blown air is used to evaporate the refrigerant and cool the air, which is then supplied to the vehicle's interior to cool the interior. Additionally, the coolant flows into the evaporator. 242The evaporated coolant passes through the coolant heat exchanger 233 and exchanges heat with the coolant before flowing into the second expansion valve 240 and then back through the compressor 210 into the accumulator 260. Additionally, the remaining coolant branched off by the coolant diverter 241 is throttled as it flows through the third expansion valve to expand the coolant, and the expanded coolant then flows through the radiator. 252 and exchanges heat with the coolant, allowing the coolant to evaporate and thus cool the coolant. Additionally, the coolant flows through the radiator. 252 The evaporated refrigerant passes through the accumulator 260 and flows back into the compressor 210. The refrigerant may not pass through the first refrigerant line via the first expansion valve 225. 232 flow. In this way, the coolant that passes through the evaporator is circulated. 242has flowed, and the coolant that flows through the radiator 252 The coolant is flowing, is combined in the accumulator 260 and introduced into the compressor 210, and the coolant is circulated while the process described above is repeated.

[0069] Meanwhile, the cooling water in the cooling water circulation line circulates through the activation of the first cooling water pump. 450 , the second coolant pump 420, and the third coolant pump 340 Furthermore, the cooling water that passes through the water-cooled condenser can 220 The electrical component 460 and the battery 350 are cooled by the cooling water, and the heated cooling water can be cooled by heat exchange with external air through the operation of the cooling fan 311 in the electric radiator 310. At this point, the first directional switching valve can 410 and the second reversing valve 320be set in a direction that directs the heating element 301 and connects the cooling line 302. In more detail, in the first reversing valve 10, an upper side and a left side can be connected to each other, so that the cooling water flows, and a lower side and a right side can be connected to each other, so that the cooling water flows. Furthermore, in the second reversing valve 320 In the third reversing valve 330, a left side and a lower side may be connected, allowing cooling water to flow, while a connection to a right side may be blocked. Additionally, in the third reversing valve 330, an upper side and a right side may be connected, and a left side may be blocked.

[0070] The result is a circuit in which the cooling water circulates, flowing from the electric radiator 310 through the reservoir tank 370 and the second reversing valve.320 , the second cooling water pump 420, the first reversing valve 410 , the water-cooled condenser 220 , the first cooling water pump 450 , the cooling water heater 430 , the heating unit 440, the first reversing valve 410 , the electrical component 460 and the second cooling water merging 312 flows, and then flows back into the electric radiator 310, repeatedly. Here, the cooling water may be diverted by means of the second reversing valve. 320 not from the second directional switching valve 320 to the first cooling water aggregation 313, and the cooling water may not flow from the third directional switching valve 330 to the second cooling water aggregation. 312 flow. Furthermore, a circuit is established in which the cooling water circulates, being drawn from the radiator. 252in sequence through the first cooling water merging 313, the third cooling water pump 340 , the battery 350, and the third reversing valve flows, and then back into the radiator 252 flows repeatedly. Thus, the battery 350 and the radiator form 252 a cooling line with a separate closed loop through which the cooling water circulates via the second reversing valve 320 and the third direction switching valve 330, so that the battery 350 can be cooled separately.

[0071] The maximum cooling mode can be used here when the external air temperature is in the range of 30 to 45°C, and at this time the compressor 210 can rotate at its maximum speed. Furthermore, when cooling of the battery 350 is not necessary, the third expansion valve 251 is blocked so that the refrigerant does not flow towards the radiator. 252can flow, and at this time the third cooling water pump may 340 not be operated. Mild cooling mode

[0072] The Fig. Figure 3 is a configuration diagram illustrating an operating state in a mild cooling mode of the thermal management system according to an embodiment of the present invention.

[0073] With regard to the Fig. 3. The compressor 210 operates in the coolant circulation line. 200 A high-temperature, high-pressure refrigerant is discharged by compressor 210. Furthermore, the refrigerant discharged by compressor 210 is cooled by heat exchange with cooling water in the water-cooled condenser. 220 Then it flows into the water-cooled condenser. 220 Cooled coolant passes through the first expansion valve 225 in a fully open state towards the air-cooled condenser. 230and flows into the air-cooled condenser 230 , and is located in the air-cooled condenser 230 Cooled by means of heat exchange with external air. Thus, both the water-cooled condenser and the cooling system serve this purpose. 220 as well as the air-cooled condenser 230 as condensers for condensing the coolant. The condensed coolant then flows through the coolant branch piece 241, flows through the coolant heat exchanger 233 and is then throttled as it flows through the second expansion valve 240 to expand the coolant, and afterwards the expanded coolant flows through the evaporator. 242 and exchanges heat with that from the air conditioning blower 152. 150 The blown air is used to evaporate the refrigerant, thus cooling the air, which is then supplied to the vehicle's interior to cool the cabin. Additionally, the refrigerant flows into the evaporator. 242The evaporated refrigerant passes through the refrigerant heat exchanger 233 and exchanges heat with the refrigerant before flowing into the second expansion valve 240 and then through the accumulator 260 back into the compressor 210. At this time, the refrigerant may not pass through the first refrigerant bypass line via the first expansion valve 225. 232 flow, and the third expansion valve 251 is blocked, so the coolant does not enter the radiator. 252 may flow.

[0074] Thus, the coolant flows through the evaporator. 242 The coolant flows through the accumulator 260 and is introduced into the compressor 210, and the coolant is circulated while the process described above is repeated.

[0075] Meanwhile, the cooling water in the cooling water circulation line circulates through the activation of the first cooling water pump. 450 , the second coolant pump 420, and the third coolant pump 340Furthermore, the cooling water that passes through the water-cooled condenser may 220 The electrical component 460 and the battery 350 flow, from which cooling water is cooled, and the heated cooling water may be cooled by heat exchange with external air by actuating the cooling fan 311 in the electric radiator 310. At this time, the first directional switching valve may 410 and the second directional switching valve 350 must be set in a direction that directs the heating line 301 and connects the cooling line 302. In more detail, perhaps, in the first reversing valve. 410 , an upper side and a left side may be connected to each other so that the cooling water flows, and a lower side and a right side may be connected to each other so that the cooling water flows. Furthermore, in the second reversing valve 320The left, lower, and right sides of the three directions are all connected so that the cooling water may flow. Additionally, in the third direction switching valve 330, the left and right sides may be connected to each other, and one upper side may be blocked.

[0076] The result is a circuit in which the cooling water circulates, flowing from the electric radiator 310 through the reservoir tank 370 in sequence, the second reversing valve 220 , the second cooling water pump 420, the first reversing valve 410 , the water-cooled condenser 220 , the first cooling water pump 450 , the cooling water heater 430 , the heating unit 440, the first reversing valve 410The electrical component 460 and the second cooling water merging flow, and then flows back into the electric radiator 310, is repeated. Additionally, a circuit is created in which a portion of the cooling water circulates by flowing to the right through the second reversing valve. 320 flows, flowing through the first cooling water merging 313, the third cooling water pump 340 , the battery 350, the third reversing valve 330, and the second coolant merging 312 , and then flowing again in the electric radiator 310, repeatedly. At this time, the cooling water that has flowed through the electrical component 460 and the cooling water that has flowed through the battery 350 may merge for the second time. 312 They are combined and flow into the electric radiator 310.

[0077] The mild cooling mode may be used here when the temperature of the external air is in the range of 15 to 25°C, and at this time, because the battery may be cooled by the electric radiator, the coolant may be prevented from circulating through the radiator, thus reducing the energy consumed to drive the compressor. Battery-dedicated cooling mode

[0078] The Fig. Figure 4 is a configuration diagram illustrating an operating state in a battery-dedicated cooling mode of the thermal management system according to an embodiment of the present invention.

[0079] With regard to the Fig. 4. The compressor 210 operates in the coolant circulation line. 200A high-temperature, high-pressure refrigerant is discharged by compressor 210. Furthermore, the refrigerant discharged by compressor 210 is cooled by heat exchange with cooling water in the water-cooled condenser. 220 Then it flows into the water-cooled condenser. 220 Cooled coolant passes through the first expansion valve 225 in a fully open state towards the air-cooled condenser. 230 and then flows into the air-cooled condenser 230 , and is located in the air-cooled condenser 230 Cooled by heat exchange with external air. Thus, both the water-cooled condenser and the cooling system serve this purpose. 220 as well as the air-cooled condenser 230Both act as condensers for condensing the coolant. The condensed coolant then flows through the coolant branch piece 241, flows through the coolant heat exchanger 233, and is then throttled as it flows through the third expansion valve 251 to expand the coolant. After that, the expanded coolant exchanges heat with the cooling water as it flows through the radiator. 252 It flows to cool the cooling water as the coolant evaporates, and cooling of the 250 battery is achieved using the cooled cooling water. Additionally, it flows through the radiator. 252 The refrigerant evaporates through the accumulator 260 and flows back into the compressor 210. At this time, the refrigerant may be expanded by means of the first expansion valve. 252 not through the first coolant bypass line 232 flow, and the second expansion valve 240 is blocked, so the coolant cannot reach the evaporator. 242may flow. Thus, the coolant is circulated while the process described above is repeated.

[0080] Meanwhile, the cooling water in the cooling water circulation line is circulated by the operation of the first cooling water pump. 450 , the second coolant pump 420, and the third coolant pump 340 Additionally, the coolant that passes through the water-cooled condenser may 220 The electrical component 460 and the battery 350 flow through which the cooling water is cooled, and the heated cooling water may be cooled by heat exchange with external air through the operation of the cooling fan 311 in the electric radiator 310. At this time, the first directional switching valve may 410 and the second reversing valve 320 be set in a direction that directs the heating element 301 and connects the cooling line 302. In more detail, perhaps, in the first reversing valve. 410, an upper side and a left side may be connected to each other so that the cooling water flows, and a lower side and a right side may be connected to each other so that the cooling water flows. Additionally, in the second reversing valve, 320 A left side and a lower side may be connected so that the cooling water flows, and a connection to a right side may be blocked. Furthermore, in the third reversing valve 330, an upper side and a right side may be connected and a left side may be blocked.

[0081] The result is a circuit in which the cooling water is circulated, in which it is passed from the electric radiator 310 through the reservoir tank 370 in sequence, the second direction switching valve 320 , the second cooling water pump 420, the first reversing valve 410 , the water-cooled condenser 220 , the first cooling water pump450 , the cooling water heater 430 , the heating unit 440, the first reversing valve 410 , the electrical component 460, and the second cooling water merging 312 flows, and then flows back into the electric radiator 310, repeatedly. This may be done using the second reversing valve. 320 the cooling water not from the second reversing valve 320 to the first cooling water aggregation 313, and the cooling water may not flow from the third directional switching valve 330 to the second cooling water aggregation by means of the third directional switching valve 330 312 flow. Furthermore, a circuit is established in which the cooling water circulates, flowing from the radiator. 252 in sequence through the first cooling water merging 313, the third cooling water pump 340 , the battery 350, and the third reversing valve 330 flows, and then into the radiator 252flows back, repeatedly. Thus, the battery 350 and the cooler form 252 a cooling line with a separate closed loop through which the cooling water circulates via the second reversing valve 320 and the third direction switching valve 330, so that the battery 350 may be cooled separately.

[0082] The battery-dedicated cooling mode may be used here when a rapid battery charge is required without cooling the interior. At this time, the compressor may rotate at maximum speed. Maximum heating mode

[0083] The Fig. Figure 5 is a configuration diagram illustrating an operating state in a maximum heating mode of the thermal management system according to an embodiment of the present invention.

[0084] With regard to the Fig. 5. The compressor 210 operates in the coolant circulation line.200 A high-temperature, high-pressure refrigerant is discharged by compressor 210. Furthermore, the refrigerant discharged by compressor 210 is cooled by heat exchange with cooling water in the water-cooled condenser. 220 Then, the water-cooled condenser... 220 The cooled coolant is throttled and expanded as it flows through the first expansion valve 225, and the expanded coolant flows through the air-cooled condenser. 230 and exchanges heat with external air to evaporate the coolant, which in turn absorbs heat from the external air. The coolant then flows through the coolant branch piece 41, through the third expansion valve 251 in a fully open state, and into the radiator. 252 , and in the cooler 252The coolant may be heated by heat exchange between the coolant and the cooling water. Then the coolant flows through the radiator. 252 The coolant has flowed through the accumulator 260 and flows back into the compressor 210. At this time, the coolant may not flow through the first coolant bypass line via the first expansion valve 225. 232 flow, and the second expansion valve 240 is blocked, so the coolant cannot enter the evaporator. 242 may flow. Thus, the coolant is circulated while the process described above is repeated.

[0085] As another example, the first expansion valve 225 may direct the coolant to the first coolant bypass line. 232 redirect instead of the air-cooled condenser 230 In a winter heating mode, the air-cooled condenser may 230The coolant, which is located outside and absorbs heat, can cause icing at low outside temperatures. To prevent icing, the coolant is diverted to the first coolant bypass line. 232 The coolant is diverted, and it expands in the second expansion valve 240 during dehumidification or in the third expansion valve 251 when waste heat from the cooling water is recovered in some cases. Additionally, in winter heating mode, when there is a large amount of waste heat recovery from the battery and electrical components, heat radiation may occur in the air-cooled condenser. 230 This occurs because the pressure upstream of the compressor, i.e., on the low-pressure side, increases in the direction of coolant flow. When heat radiation occurs in the air-cooled condenser 233, a loss in heating power occurs, and the coolant is redirected to prevent this loss.

[0086] Meanwhile, the cooling water in the cooling water circulation line is circulating. 300 through the operation of the first cooling water pump 450 and the second cooling water pump 420. Furthermore, the cooling water may be heated while passing through the water-cooled condenser. 220 flows, may be from the cooling water heater 430 may be heated, may be heated by waste heat from the electrical component 460, and may be cooled while passing through the cooler 252 flows. At this time, the first reversing valve may be... 410 and the second reversing valve 320 be set in a direction that directs the heating element 301 and disconnects the cooling line 302. For more detail, see the first reversing valve. 410, an upper side and a right side may be connected to each other so that the cooling water flows, and a lower side and a left side may be connected to each other so that the cooling water flows. Furthermore, in the second reversing valve, 320 A right side and a lower side may be connected so that the cooling water flows, and a connection to a left side may be blocked. Furthermore, in the third reversing valve 330, an upper side and a left side may be connected and a right side may be blocked.

[0087] Furthermore, a circuit is established in which the cooling water of the heating line 310 is circulated by passing it successively through the first cooling water pump. 450 , the cooling water heater 430 , the heating unit 440, the first reversing valve 410 , and the water-cooled condenser 220 flows, and back into the first cooling water pump450 flows, repeatedly. Furthermore, a circuit is established in which the cooling water of cooling line 302, which is separate from heating line 310, circulates, by being pumped from the second cooling water pump through the first reversing valve in sequence. 410 , the electrical component 460, the second cooling water merging 312 , the third directional switching valve 330, the cooler 252 , the first cooling water merging 313, and the second direction reversing valve 320 flows, and then flows again into the second cooling water pump 420, repeatedly. Here the cooling water may be diverted by means of the second reversing valve. 320 not from the second directional switching valve 320 through the electric radiator 310 to the second cooling water merging 312flow, and the cooling water may not flow from the third direction changeover valve 330 through the battery 350 and the third cooling water pump by means of the third direction changeover valve 330 340 to the first cooling water junction 313. In addition, the air is heated by heat exchange with the air supplied by the air conditioning blower 152. 150 The air is blown as it flows through the heating unit 440; interior heating is achieved by supplying the heated air to the interior of the vehicle.

[0088] Additionally, the heat management system according to the present invention may also include a heater 470 of the air heating type, which is separate from the heating line. 301is configured to directly heat the air introduced into the interior. Thus, the air-heating type heater 470 may be located near the heating device 440 and may, for example, be designed as an electrically operated PTC heater to quickly heat the air. This makes it possible to increase the rapid effect of heating the interior. At this time, the air-heating type heater 470 may be used because the previously used cooling water heater... 430 Heated cooling water flows into the heating device 440, using a low-voltage PTC heater with a relatively low heat generation capacity, and can therefore be configured at a lower cost than a high-voltage PTC heater. Alternatively, although not illustrated, if the air-heating type heater 470 is located near the heating device 440, the cooling water heater may be used. 430in the cooling line 302 adjacent to the battery 350 instead of in the heating line 301 be installed. Thus, the air-based heater is used for heating, and the coolant heater is used separately to raise the battery temperature, thereby increasing efficiency and allowing separate control of the battery.

[0089] Here, the maximum heating mode may be used when the external air temperature is in the range of -20°C to -5°C, and the battery 350 may be cooled by controlling the third reversing valve 330 and the third cooling water pump. 340 . Battery heating mode

[0090] The Fig. Figure 6 is a configuration diagram illustrating an operating state in a battery heating mode of the thermal management system according to an embodiment of the present invention.

[0091] With regard to the Fig. 6 is the coolant circulation line 200 It is not in operation and the coolant is not circulating.

[0092] Meanwhile, the cooling water in the cooling water circulation line is circulated by the operation of the first cooling water pump. 450 , the second coolant pump 420, and the third coolant pump 340 Furthermore, the cooling water may be heated by waste heat from the cooling water heater. 430 and the electrical component 460. At that time, the first directional switching valve may have been 410 and the second reversing valve 320 be set in a direction that directs the heating element 301 and connects the cooling line 302. In more detail, perhaps, in the first reversing valve. 410, an upper side and a left side may be connected to each other so that the cooling water flows, and a lower side and a right side may be connected to each other so that the cooling water flows. Furthermore, in the second reversing valve, 320 A right side and a lower side may be connected so that the cooling water flows, and a connection to a left side may be blocked. Furthermore, in the third reversing valve 330, the left, upper, and right sides are all connected.

[0093] The result is a circuit in which the cooling water is circulated by being pumped from the second cooling water pump 420 through the first reversing valve in sequence. 410 , the water-cooled condenser 220 , the first cooling water pump 450 , the cooling water heater 430 , the heating unit 440, the first reversing valve 410, the electrical component 460, the second cooling water merging 312 , the third directional switching valve 330, the cooler 252 , the first cooling water merging 313, and the second direction reversing valve 320 flows, and then flows back into the second cooling water pump 420, repeatedly. At this time, the cooling water flowing through the battery 350 may be combined at the third reversing valve 330 and flow upwards, then branch off to both sides at the first cooling water merging 313. Here, by means of the second reversing valve 320 the cooling water not from the second reversing valve 320 through the electric radiator 310 to the second cooling water merging 312flow. Thus, the heated coolant increases the temperature of battery 350, so that the initial performance of battery 350 in winter, when the outside temperature is low, can be quickly improved.

[0094] The battery heating mode may be used here if the temperature of the external air is in the range of -20°C to -5°C. Mild heating mode

[0095] The Fig. Figure 7 is a configuration diagram illustrating an operating state in a mild heating mode of the thermal management system according to an embodiment of the present invention.

[0096] With regard to the Fig. 7 is the coolant circulation line 200 It is not in operation and the coolant is not circulating.

[0097] Meanwhile, the cooling water in the cooling water circulation line is circulated by the operation of the first cooling water pump. 450and the second cooling water pump 420. Furthermore, the cooling water may only be heated by waste heat from the electrical component 460. At this time, the first reversing valve may be 410 and the second reversing valve 320 be set in a direction that directs the heating element 301 and connects the cooling line 302. In more detail, perhaps, in the first reversing valve. 410 , an upper side and a left side may be connected to each other so that the cooling water flows, and a lower side and a right side may be connected to each other so that the cooling water flows. Furthermore, in the second reversing valve, 320A right side and a lower side may be connected so that the cooling water flows, and a connection to a left side may be blocked. Furthermore, in the third reversing valve 330, a left side and an upper side may be connected and a right side may be blocked.

[0098] The result is a circuit in which the cooling water is circulated by being pumped from the second cooling water pump 420 through the first reversing valve in sequence. 410 , the water-cooled condenser 220 , the first cooling water pump 450 , the cooling water heater 430 , the heating unit 440, the first reversing valve 410 , the electrical component 460, the second cooling water merging 312 , the third directional switching valve 330, the cooler 252 , the first cooling water merging 313, and the second direction reversing valve 320flows, and then flows again into the second coolant pump 420, repeatedly. At this time, the coolant may not flow from the third reversing valve 330 to the battery 350, the third coolant pump, by means of the third reversing valve 350. 340 , and the first coolant merging 313 flow, and the coolant may flow by means of the second directional switching valve 320 not from the second directional switching valve 320 through the electric radiator 310 to the second cooling water merging 312 flow. Thus, if the heating requirement is low, the cooling water may only be heated by the waste heat of the electrical component 460 and used for heating the interior.

[0099] The mild heating mode may be used here if the temperature of the external air is in the range of 5°C to 15°C. Dehumidification heating mode

[0100] The Fig. Figure 8 is a configuration diagram illustrating an operating state in a dehumidification heating mode of the heat management system according to an embodiment of the present invention.

[0101] With regard to the Fig. 8. The compressor 210 operates in the coolant circulation line. 300 A high-temperature, high-pressure refrigerant is discharged by compressor 210. Furthermore, the refrigerant discharged by compressor 210 is cooled by heat exchange with cooling water in the water-cooled condenser. 220 . Then, the water-cooled condenser is used. 220 The cooled coolant is throttled as it flows through the first expansion valve 225 to expand the coolant; the expanded coolant flows through the first coolant bypass line. 232and is then branched off at the coolant branch piece 241, so that part of the coolant flows through the coolant heat exchanger 233 and then bypasses the second expansion valve 240, and afterwards the coolant flows through the evaporator 242 and exchanges heat with that from the air conditioning blower 152. 150 Air is blown out to remove moisture from the air. Additionally, the refrigerant, which flows through the evaporator, is expelled. 242 The coolant that has flowed through the coolant heat exchanger 233 flows through the accumulator 260 and flows back into the compressor 210. Furthermore, the remaining coolant, which was diverted from the branch piece 241, bypasses the third expansion valve 251, and then flows through the radiator. 252The coolant is then collected in the accumulator 260 and flows into the compressor 210, and the coolant is circulated while the process described above is repeated. At this time, the coolant may not reach the air-cooled condenser due to the first expansion valve 225. 230 flow.

[0102] Thus, during dehumidification heating, if the air-cooled condenser 230 Heat absorbed, the heat absorption capacity in the evaporator 242 be insufficient, and, if the air-cooled condenser 230 Since heat is radiated, the heating performance may be reduced. In the present embodiment, the coolant bypasses the air-cooled condenser. 230 , in order to avoid such problems, thereby ensuring sufficient dehumidification heating performance.

[0103] Meanwhile, the cooling water in the cooling water circulation line is circulated by the operation of the first cooling water pump.450 and the second cooling water pump 420. Furthermore, the cooling water may only be heated by the waste heat from the electrical component 460. At this time, the first reversing valve may be 410 and the second reversing valve 320 be set in a direction that directs the heating element 301 and disconnects the cooling line 302. For more detail, see the first reversing valve. 410 , an upper side and a right side may be connected to each other so that the cooling water flows, and a lower side and a left side may be connected to each other so that the cooling water flows. Furthermore, in the second reversing valve, 320A right side and a lower side may be connected so that the cooling water flows, and a connection to a left side may be blocked. Furthermore, in the third reversing valve 330, a left side and an upper side may be connected, and a right side may be blocked.

[0104] Furthermore, a circuit is created in which the cooling water of the heating line 301 It is circulated by passing through the first cooling water pump in sequence. 450 , the cooling water heater 430 , the heating unit 440, the first reversing valve 410 , and the water-cooled condenser 220 flows, and then back into the first cooling water pump 450 flows repeatedly. Furthermore, a circuit is formed in which the cooling water of cooling line 302, which is supplied by the heating line, flows. 301is separated, is circulated by passing from the second cooling water pump 420 through the first reversing valve in sequence 410 , the electrical component 460, the second cooling water merging 312 , the third directional switching valve 330, the cooler 252 , the first cooling water merging 313, and the second direction reversing valve 320 flows, and then flows again into the second coolant pump 420, repeatedly. At this time, due to the third reversing valve 330, the coolant may not flow from the third reversing valve to the battery 350, the third coolant pump. 340 , and the first cooling water merging 313 flow, and the cooling water may flow by means of the second directional switching valve. 320 not from the second directional switching valve 320 through the electric radiator 310 to the second cooling water merging 312 flow. Here the cooling water heater may430 not be operated, and the air that is dehumidified while passing through the evaporator 242 The water flows, is heated as it flows through the heating device 440, and may be used for heating the interior.

[0105] The dehumidification heating mode can be used here if the temperature of the external air is in the range of 5°C to 15°C.

[0106] The Fig. Figure 9 is a configuration diagram illustrating a thermal management system according to another embodiment of the present invention, and the Fig. 10 and Fig. Figure 11 are concept diagrams illustrating the flow of cooling water in a cooling water circulation line according to the opening and closing of a shut-off valve in the Fig. 9 illustrate.

[0107] With regard to the Fig. 9 The cooling line 302 may further contain a fourth connecting line 302-4, which connects to the first connecting line 302-1and the second connecting line 302-2 connects, and a shut-off valve 360 may be installed in the fourth connecting line 302-4, so that the shut-off valve 360 parallel with the first directional switching valve 410 It may be arranged.

[0108] Thus, in a normal state as illustrated in the Fig. 10, in a state where the shut-off valve 360 If the electrical component is blocked, it can be cooled using the flow of cooling water, and if the cooling requirement of the electrical component is large, the shut-off valve may be used. 360 as in the Fig. 11 illustrated can be opened to cool the electrical component using cooler cooling water.

[0109] Furthermore, a coolant temperature sensor may 461, in the direction of flow of the cooling water, close to the front of the electrical component 460, and the cooling of the electrical component 460 may be controlled by controlling the opening and closing of the shut-off valve 360 according to the temperature of the cooling water, which is determined by the cooling water temperature sensor 461 was measured.

[0110] The Fig. 12 to Fig. Figure 15 are configuration diagrams illustrating examples of a coolant circulation line according to the present invention.

[0111] With regard to the Fig. 12 may the coolant circulation line 200 the compressor 210, the water-cooled condenser 220 , the first expansion valve 225, the air-cooled condenser 230 , the check valve 231, the first coolant bypass line 232 , the coolant branch piece 241, the second expansion valve 240, the evaporator 242, the coolant heat exchanger 233, the accumulator 260, the third expansion valve 251 and the radiator 252 as described in the embodiment of the present invention. Here, the second expansion valve 240 may be an electronic expansion valve. 240a It must be capable of fully opening and closing, and of electronically controlling the flow rate to throttle the coolant. At this time, the electronic expansion valve measures 240a the temperature and pressure of the back side of the evaporator 242 in the direction of coolant flow by means of a sensor, and the valve may be controlled using such a value.

[0112] Furthermore, with regard to the Fig. 13, the second expansion valve 240, which is located between the coolant heat exchanger 233 and the evaporator 242 in the coolant circulation line 200It is arranged to be a mechanical expansion valve 240b in which a flow rate for throttling the coolant is mechanically set according to the temperature of the flowing coolant. In addition, the coolant circulation line may 200 further a second coolant bypass line 234 , which is connected in parallel to the mechanical expansion valve 240b, and a three-way switching valve 240-1 , installed at a point where the coolant is branched off to the side of the mechanical expansion valve 240b and the second coolant bypass line 234 , included. Here, the mechanical expansion valve 240b may not be fully open or completely closed, and may only mechanically adjust the throttled flow rate. Accordingly, the coolant flow can be adjusted by the three-way diverter valve. 240-1 , and according to the actuation of the three-way switching valve 240-1The coolant may only flow to the mechanical expansion valve 240b, the coolant may only flow to the second coolant bypass line. 234 either the coolant might not flow, or it might not flow on either side.

[0113] Alternatively, as in the Fig. Figure 14 illustrates a second opening / closing valve after the coolant comes from the coolant heat exchanger 233 and branches off to the side of the mechanical expansion valve 240b and the second coolant bypass line 243. 240-3 be installed on the side of the mechanical expansion valve 240b, and a first open / close valve 240-2 may be installed in the second coolant bypass line 234 be installed. This offers the advantage of having a temperature sensor and a pressure sensor located in the direction of coolant flow at the rear of the evaporator. 242are not required and logic for controlling the second expansion valve 240 is not required.

[0114] Additionally, with regard to the Fig. 15, the second expansion valve 240, which is in the coolant circulation line 200 between the coolant and heat exchanger 233 and the evaporator 242 It is arranged to be a mechanical expansion valve that is integrated with an electronic open / close valve. 240c , in which a flow rate for throttling the coolant is mechanically adjusted according to the temperature of the flowing coolant, and the electronic opening / closing valve is integrally formed. Furthermore, the coolant circulation line may 200 further a second coolant bypass line 234 , which is connected in parallel with the mechanical expansion valve and integrated with an electronic opening / closing valve 240c, and a first opening / closing valve 240-2, which is located in the second coolant bypass line 234 The system is installed after the coolant is diverted. Here, the mechanical expansion valve may be integrated with the electronic open / close valve. 240c The throttled flow rate is controlled mechanically and may not be fully open, but may be completely closed. Thus, compared to using a mechanical expansion valve and a two-way switching valve (open / close valve), the configuration may be simplified by using the mechanical expansion valve integrated with an electronic open / close valve. 240c , which is integrally configured.

[0115] The present invention is not limited to the embodiments described above and may be applied in a variety of ways. Furthermore, the present invention may be modified in many ways by those skilled in the field to which it belongs, without departing from the spirit of the present invention as claimed in the claims. Reference symbol list 150: Air conditioning, 151: Temperature control flap, 152: Blower 200: Coolant circulation line, 210: Compressor 220: water-cooled condenser, 225: first expansion valve 230: air-cooled condenser, 231: check valve 232: first coolant bypass line, 233: coolant heat exchanger 234: second coolant bypass line, 240: second expansion valve 240a: electronic expansion valve, 240b: mechanical expansion valve 240c: mechanical expansion valve integrated with an electronic open / close valve 240-1: Three-way diverter valve, 240-2: First open / close valve 240-3: second opening / closing valve, 241: coolant branch piece 242: Evaporator, 251: Third expansion valve 252: Cooler, 260: Accumulator 300: Cooling water circulation line, 301: Heating line, 302: Cooling line 302-1: first connecting line, 302-2: second connecting line, 302-3: third connecting line 301: electric radiator, 311: cooling fan 312: second cooling water merging, 313: first cooling water merging 320: second reversing valve, 330: third reversing valve 340: third coolant pump, 350: battery 360: Shut-off valve, 370: Reservoir tank 410: first reversing valve, 420: second cooling water pump 430: Cooling water heater, 440: Heating system 450: first cooling water pump, 460: electrical component 461: Coolant temperature sensor, 470: Air-heating type heater QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] KR 20180007021 A

[0005]

Claims

[1] A thermal management system comprising: a coolant circulation line (200) comprising a compressor (210), a water-cooled condenser (220), a first expansion valve (225), an air-cooled condenser (230), a second expansion valve (240), an evaporator (242), a coolant heat exchanger (233) for the mutual exchange of heat between a coolant flowing into the second expansion valve (240) and a coolant expelled from the evaporator (242), and a first coolant bypass line (232) that allows the coolant flowing through the water-cooled condenser (220) to bypass the first expansion valve and the air-cooled condenser (230) and to circulate the coolant to cool the interior, a heat conduit (301) that heats the interior by circulating coolant, which exchanges heat with the coolant through the water-cooled condenser (220), and a cooling line (302) that cools a battery (350) and an electrical component (460) by circulating air or cooling water that exchanges heat with the coolant. [2] The thermal management system according to claim 1, wherein the first coolant bypass line (232) is not used in a cooling mode and the coolant flows in a heating mode. [3] The thermal management system according to claim 1, wherein the first coolant bypass line (232) is not used in a cooling mode and the coolant flows in a dehumidifying heating mode. [4] The heat management system according to claim 1, wherein the coolant heat exchanger (233) in a cooling mode exchanges heat between a coolant flowing into the second expansion valve (240) and coolant expelled from the evaporator (242), and in a heating mode does not exchange heat between the coolant flowing into the second expansion valve (240) and the coolant expelled from the evaporator (242). [5] The thermal management system according to claim 1, wherein the coolant circulation line (200) further includes a check valve (231) which, in a flow direction of the coolant, is installed between a rear side of the air-cooled condenser (230) and a rear side of the coolant bypass line (232). [6] The thermal management system according to claim 1, wherein the cooling line (302) includes a first connecting line (302-1) branching off from one side of the cooling line (302) and connected to the heating line (301); and a second connecting line (302-2) branching off from the other side of the cooling line (302) and connected to the heating line (301). [7] The thermal management system according to claim 6, wherein the first connecting line (302-1), the second connecting line (302-2), and the heating line (301) are connected to a first directional switching valve (410), and the cooling line (302) and the heating line (301) are connected to each other or separated from each other by means of the first directional switching valve (410). [8] The thermal management system according to claim 7, wherein the electrical component (460) is arranged in the second connecting line (302-2). [9] The thermal management system according to claim 8, wherein the cooling line (302) further includes a fourth connecting line (302-4) connecting the first connecting line (302-1) and the second connecting line (302-2), and a shut-off valve (360) installed in the fourth connecting line (302-4) and arranged in parallel to the first directional switching valve (410). [10] The thermal management system according to claim 9, wherein the cooling line (302) further includes a cooling water temperature sensor (461) which is installed in a flow direction of the cooling water upstream of the electrical component (460). [11] The thermal management system according to claim 1, wherein the coolant circulation line (200) further includes a third expansion valve (251) for throttling, bypassing or blocking a flow of the coolant ejected from the water-cooled condenser (220) and a cooler (252) for exchanging heat between the coolant ejected from the third expansion valve (251) and the cooling water of the cooling line (302). [12] The thermal management system according to claim 11, wherein the coolant heat exchanger (233) is connected in parallel with the air-cooled condenser (230) and the cooler (252). [13] The thermal management system according to claim 11, wherein the cooling line (302) includes a third connecting line (302-3) which is connected in parallel to the battery (350) and passes through the cooler (252), and the third connecting line (302-3) is connected to the cooling line (302) via a third directional switching valve (330), so that the cooling water flows into the third connecting line (302-3) or the flow is blocked by means of the third directional switching valve (330). [14] The thermal management system according to claim 1, wherein the cooling line (302) includes an electric radiator (310) for cooling the cooling water by means of air. [15] The thermal management system according to claim 1, wherein the heating line (301) includes a heating device (440) which heats the interior using heated air by exchanging heat between cooling water, which is heat-exchanged with the coolant through the water-cooled condenser (220), and air flowing into the interior, and a cooling water heater (430) which is arranged upstream of the heating device (440) in the direction of flow of the cooling water to heat the cooling water. [16] The thermal management system according to claim 1, wherein the heating line (301) includes a heating device (440) which heats the interior using heated air by exchanging heat between cooling water, which is heat-exchanged with the coolant through the water-cooled condenser (220), and air flowing into the interior, and further includes an air-heating type heater (470) configured separately from the heating line (301) which directly heats the air flowing into the interior to heat the interior. [17] The heat management system according to claim 1, wherein the second expansion valve (240) is arranged between the coolant heat exchanger (230) and the evaporator (442), the second expansion valve (240) is a mechanical expansion valve (240b) in which a flow rate is mechanically adjusted to throttle the coolant according to the temperature of the flowing coolant, and the coolant circulation line (200) further includes a second coolant bypass line (234) which is connected in parallel to the mechanical expansion valve (240b); and a three-way switching valve (240-1) which is installed at a point where the coolant branches off to the side of the mechanical expansion valve (240b) and the second coolant bypass line (234). [18] The heat management system according to claim 1, wherein the second expansion valve (240) is arranged between the coolant heat exchanger (233) and the evaporator (242), the second expansion valve (240) is a mechanical expansion valve (240b) in which a flow rate is mechanically adjusted to throttle the coolant according to the temperature of the flowing coolant, and the coolant circulation line (200) further includes a second coolant bypass line (234) which is connected in parallel to the mechanical expansion valve (240b); a first open / close valve (240-2) installed in the second coolant bypass line (234) after the coolant branches off; and a second open / close valve (240-3) installed on the side of the mechanical expansion valve (240) after the coolant has branched off. [19] The heat management system according to claim 1, wherein the second expansion valve (240) is arranged between the coolant heat exchanger (233) and the evaporator (242), the second expansion valve (240) is a mechanical expansion valve integrated with an electronic open / close valve (240c) in which a flow rate for throttling the coolant is mechanically adjusted according to a temperature of the flowing coolant, and the electronic open / close valve is integrally formed, and the coolant circulation line (200) further includes a second coolant bypass line (234) which is connected in parallel to the mechanical expansion valve integrated with an electronic open / close valve (240c); and contains a first open / close valve (240-2) installed in the second coolant bypass line (234) after the coolant is diverted.

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