Heat exchanger system for a vehicle

Abstract

Heat exchange system (1) for a vehicle, the heat exchange system comprising: a heat exchange module (10) arranged at a rear in a longitudinal direction of the vehicle, which is formed from a plurality of overlapping plates (P1-P12), each of the plates (P1-P12) including a plurality of through-holes (23-31) in a predetermined section, and which includes a first heat exchange region (10a) and a second heat exchange region (10b), wherein the first heat exchange region (10a) includes a first coolant flow passage (WP1), an oil flow passage (OP), and a first refrigerant flow passage (RP1), and the second heat exchange region (10b) a second coolant flow passage (WP2) and a second refrigerant flow passage (RP2); a radiator (5) installed in a front longitudinal direction of a vehicle body and configured to allow heat exchange while a first coolant circulating therein passes through the first coolant flow passage (WP1); a heating, ventilating, and air conditioning (HVAC) module (50) arranged at the rear in the longitudinal direction of the vehicle, including an air conditioning case (51) including an evaporator (53), an interior condenser (55), and an opening / closing door (57), and configured to operate the opening / closing door (57) based on a cooling mode and a heating mode, and to control a direction of interior air; an electric compressor (60) configured to deliver a refrigerant to the indoor condenser (55) between the heat exchange module (10) and the HVAC module (50); a stern drive motor (80) arranged at the stern and configured to exchange heat with the first coolant while a cooling oil circulating therein passes through the oil flow passage (OP); an autonomous drive controller (70) arranged at the rear and configured to allow heat exchange between the refrigerant and a second coolant while the second coolant circulating therein passes through the second coolant flow passage (WP2); and a switching valve (40, 41, 43) which includes: a first valve (40) installed on a first refrigerant line (RL1) between the indoor condenser (55) and the first heat exchange region (10a), a second valve (41) installed on a second refrigerant line (RL2) between the first heat exchange region (10a) and the second heat exchange region (10b) and configured to connect a branch line (L) branched from the second refrigerant line (RL2); and a third valve (43) installed on a third refrigerant line (RL3) connected to the electric compressor (60) via the second heat exchange region (10b) and the indoor condenser (55), and configured to be connected to a fourth refrigerant line (RL4) branching from the third refrigerant line (RL3).

Description

AREA

[0001] The present disclosure relates to a heat exchanger system for a vehicle. BACKGROUND

[0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

[0003] Generally, an electric vehicle is powered using a drive motor that receives electricity from a battery module as a power source.

[0004] The electric vehicle does not emit carbon dioxide, has a low noise level and the energy efficiency of its drive motor is higher than that of a combustion engine, so that the electric vehicle is highlighted as an environmentally friendly vehicle.

[0005] A core technology in the implementation of the electric vehicle described above is a technology related to a battery module, and recently, studies have been actively carried out on weight reduction, miniaturization, and reduction of the charging time of the battery module.

[0006] The battery module should be used in an optimal temperature environment to maintain optimal performance and long service life.

[0007] However, in a current situation, it is difficult to use the battery module in the optimal temperature environment due to heat generated during operation and external temperature changes.

[0008] In addition, the electric vehicle does not have a waste heat source generated during combustion of an internal combustion engine, as in the internal combustion engine, so vehicle interior heating in winter is carried out with an electric heater.

[0009] In addition, since the electric vehicle needs to warm up to improve battery charge / discharge performance in cold weather, a separate coolant heating type of electric heater is provided.

[0010] In other words, the electric vehicle employs a technology of operating a cooling / heating system for temperature control of the battery module separately from a cooling / heating system for interior air conditioning of the vehicle in order to maintain the optimal temperature environment of the battery module.

[0011] This means that according to the state of the art, the electric vehicle has two independent cooling and heating systems, one used for interior cooling and heating and the other used for temperature control of the battery module.

[0012] Further temperature control systems for motor vehicles are disclosed in DE 10 2018 129 922 A1, DE 10 2019 207 203 A1 and US 2013 / 0319029 A1.

[0013] The prior art cooling and heating system for the electric vehicle has a disadvantage of an increased number of parts, a large installation space and increased vehicle weight.

[0014] In the state-of-the-art electric vehicle, the increased weight is directly correlated with fuel economy.

[0015] On the other hand, in addition to the electric vehicle, there has recently been a trend of adding autonomous drive control even to a vehicle of a common specification, and autonomous drive control is a fundamental component of vehicle control.

[0016] Like the battery module, such an autonomous drive control system would require a cooling and heating system so that it can operate within a guaranteed temperature range.

[0017] A heater core is provided within a heating, ventilation, and air conditioning (HVAC) module for the purpose of efficiently cooling and heating the autonomous drive control as described above.

[0018] The heater core is used to increase a temperature of air for air conditioning by heat exchange of a coolant heated by a heater with air flowing through the interior of the HVAC module.

[0019] In this case, the HVAC module is connected to a main heat exchanger, a receiver dryer, an expansion valve, an accumulator, a compressor, and the like through a refrigerant or refrigerant line.

[0020] The interior of the HVAC module is equipped with an opening / closing door, which controls the air passing through the evaporator to selectively flow into the indoor condenser and the heater core according to a cooling mode, a heating mode, and a dehumidification mode.

[0021] The opening / closing door is opened so that in the vehicle's heating mode, the outside air passing through the evaporator flows into the interior condenser and the heater core.

[0022] Conversely, the opening / closing door on the interior condenser and heater core side is closed so that the outside air, which is cooled while passing through the evaporator in the vehicle's cooling mode, is directly admitted into the vehicle.

[0023] Most of the prior art HVAC modules are mounted at the front of the vehicle where the engine compartment is installed based on the length of the vehicle body as desired, and if the HVAC module is arranged at the rear of the vehicle where the trunk is positioned, since it is unavoidable to use a method of branching and extending the coolant piping from the cooling system arranged in the engine compartment, the performance of the rear HVAC module may be deteriorated, resulting in decreasing efficiency.

[0024] Considering the above-described drawbacks, we discovered that research and development of a heat exchanger system that improves the cooling and heating of the HVAC module located at the rear of the vehicle and the cooling efficiency and performance of the corresponding autonomous drive control system located at the rear of the vehicle are desirable.

[0025] The above information disclosed in this Background section is only intended to enhance the understanding of the background of the disclosure and therefore may contain information that does not constitute prior art already known to those skilled in the art. SUMMARY

[0026] The present disclosure provides a heat exchange system for a vehicle that can reduce a package space by performing heat exchange between an HVAC module, an electric compressor, a rear drive motor, and an autonomous drive controller arranged at the rear of the vehicle through a heat exchange module.

[0027] One embodiment of the present disclosure provides a heat exchange system for a vehicle, including: a heat exchange module arranged at the rear in a longitudinal direction of the vehicle, in which a plurality of plate-shaped plates having a plurality of through-holes overlap at a predetermined portion in cross-sectional view, and which includes a first heat exchange region including a first coolant flow passage, an oil flow passage, and a first refrigerant flow passage, and a second heat exchange region including a second coolant flow passage and a second refrigerant flow passage through the through-holes; a radiator installed in a front in the longitudinal direction of the vehicle body, and in which heat exchange is performed while a first coolant circulating therein passes through the first coolant flow passage;an HVAC (heating, ventilating, and air conditioning) module arranged at the rear in the longitudinal direction of the vehicle, wherein an evaporator, an interior condenser, and an opening / closing door are provided within an air conditioning case thereof, and that controls a direction of interior air by operating the opening / closing door based on a cooling mode and a heating mode; an electric compressor that supplies refrigerant to the interior condenser between the heat exchange module and the HVAC module; a rear-drive motor arranged at the rear based on the longitudinal direction of the vehicle, and in which heat exchange is performed with the first coolant while cooling oil circulating therein passes through the oil flow passage;an autonomous drive controller arranged at the rear based on the longitudinal direction of the vehicle, and in which heat exchange is performed with the refrigerant while a second coolant circulating therein passes through the second coolant flow passage; and a switching valve including a first valve installed on a first refrigerant line between the interior condenser and the first heat exchange region, a second valve installed on a second refrigerant line between the first heat exchange region and the second heat exchange region to connect a branch line branched from the second refrigerant line, and a third valve installed on a third refrigerant line connected to an electric compressor via the second heat exchange region and the interior condenser to connect to a fourth refrigerant line branched from the third refrigerant line.

[0028] The heat exchange module may be provided with through holes on each of the plates formed along the longitudinal direction of the vehicle body and is mounted on an upper surface of the rear drive motor by a mounting bracket.

[0029] In the heat exchange module, a flange bent in one direction may be formed along a circumference of each of the plates, and the first heat exchange region and the second heat exchange region may be divided by a diaphragm formed at a center portion in a longitudinal direction of each of the plates.

[0030] The first heat exchange region may have a structure in which a first coolant circulates through a first coolant line connecting the radiator and the first coolant flow line, a cooling oil is circulated through an oil line connecting the rear drive motor and the oil flow passage, and a refrigerant is circulated through the first refrigerant line, so that heat exchange of the first coolant and the cooling oil can be performed by the refrigerant.

[0031] The second heat exchange region may have a structure in which a second coolant is circulated through a second coolant line connecting the autonomous drive controller and the second coolant flow passage, a refrigerant flows in from the second refrigerant line, and the refrigerant is circulated through the third refrigerant line and the fourth refrigerant line, so that heat exchange of the second coolant by the refrigerant can be performed.

[0032] The first valve may be an expansion valve disposed on an upper side of the heat exchange module and circulating a refrigerant discharged from the indoor condenser into the first refrigerant flow passage.

[0033] The second valve may be an expansion valve disposed adjacent to the first valve and connecting a branch line connected to one side of the third refrigerant line to the second refrigerant line so as to circulate the refrigerant.

[0034] The third valve may be an expansion valve disposed adjacent to the second valve and selectively circulating a refrigerant through the third refrigerant line and the fourth refrigerant line.

[0035] The electric compressor may be mounted at least at two points on a housing of the rear drive motor and may be attached to the housing of the rear drive motor by a connecting bracket that absorbs vibrations of the vehicle body.

[0036] The autonomous drive control may be attached at least at two points on one side of an upper surface of a rear cross member.

[0037] In the case of cooling the autonomous drive control in a cooling mode of the vehicle, a first refrigerant may be circulated to the interior condenser from the electric compressor; the first valve may be opened and the first refrigerant may be circulated to the first heat exchange region to perform heat exchange of the first coolant; the second valve may expand the refrigerant to convert the first refrigerant into a second refrigerant that is relatively cooler than the first refrigerant, may close the branch line, open a passage of a second heat exchange region side, and circulate the second refrigerant to the second heat exchange region to perform heat exchange of the second coolant; and the third valve may close the fourth refrigerant line and open the third refrigerant line to circulate the second refrigerant to the evaporator.

[0038] In the case of cooling the autonomous drive controller in a cooling mode off state and a heating mode off state of the vehicle, the first refrigerant may be circulated to the interior condenser from the electric compressor, the first valve may be opened and the first refrigerant may be circulated to the first heat exchange region to perform heat exchange of the first coolant; the second valve may expand the refrigerant to convert the first refrigerant into a second refrigerant that is relatively cooler than the first refrigerant, may close the branch line, may open a passage of a second heat exchange region side and may circulate the second refrigerant to the second heat exchange region to perform heat exchange of the second coolant, and the third valve may close the third refrigerant line and open the fourth refrigerant line to circulate the second refrigerant to the electric compressor.

[0039] In the case of cooling the autonomous drive control in a heating mode of the vehicle, the first refrigerant may be circulated in the interior condenser from the electric compressor; the first valve may expand the refrigerant to convert the first refrigerant into a second refrigerant that is relatively cooler than the first refrigerant and may circulate the second refrigerant to the first heat exchange region to perform heat exchange of the first coolant; the second valve may open a passage of a second heat exchange region side and may circulate the second refrigerant to the second heat exchange region to perform heat exchange of the second coolant; and the third valve may close the third refrigerant line and may open the fourth refrigerant line to circulate the second refrigerant to the electric compressor.

[0040] In the case of cooling the autonomous drive control in a heating mode and a dehumidification mode of the vehicle, the first refrigerant may be circulated to the interior condenser from the electric compressor; the first valve may expand the refrigerant to form the first refrigerant into a second refrigerant that is relatively cooler than the first refrigerant, and may circulate the second refrigerant to the first heat exchange region to perform heat exchange of the first coolant; the second valve may open a passage of a second heat exchange region side and may circulate the second refrigerant to the second heat exchange region to perform heat exchange of the second coolant; and the third valve may close the fourth refrigerant line and open the third refrigerant line to circulate the second refrigerant to the evaporator.

[0041] In the case of non-cooling of the autonomous drive control in a cooling mode of the vehicle, the first refrigerant may be circulated to the interior condenser from the electric compressor; the first valve may be opened and the first refrigerant may be circulated to the first heat exchange region to perform heat exchange of the first coolant; the second valve may close a passage of a second heat exchange region side, may open the branch line and circulate the first refrigerant to the third refrigerant line via the branch line; and the third valve may expand the refrigerant to transform the first refrigerant into a second refrigerant that is relatively cooler than the first refrigerant, and may close the fourth refrigerant line and open the third refrigerant line to circulate the second refrigerant to the evaporator.

[0042] In a case of non-cooling of the autonomous drive control in a heating mode of the vehicle, the first refrigerant may be circulated to the interior condenser from the electric compressor; the first valve may expand the refrigerant to convert the first refrigerant into a second refrigerant that is relatively cooler than the first refrigerant and may circulate the second refrigerant to the first heat exchange region to perform heat exchange of the first coolant; the second valve may close a passage of a second heat exchange region side, may open the branch line, and may circulate the second refrigerant to the third refrigerant line via the branch line; and the third valve may close the third refrigerant line of an evaporator side and open the fourth refrigerant line to circulate the second refrigerant to the electric compressor.

[0043] In a case of non-cooling of the autonomous drive control in a heating mode and a dehumidification mode of the vehicle, the first refrigerant may be circulated to the interior condenser from the electric compressor; the first valve may expand the refrigerant to convert the first refrigerant into a second refrigerant that is relatively cooler than the first refrigerant, and may circulate the second refrigerant to the first heat exchange region to perform heat exchange of the first coolant; the second valve may close a passage of a second heat exchange region side, may open the branch line, and may circulate the second refrigerant to the third refrigerant line via the branch line; and the third valve may close the fourth refrigerant line and may open the third refrigerant line to circulate the second refrigerant to the evaporator.

[0044] According to the heat exchange system for the vehicle of the form of the present disclosure, it is possible to reduce a packaging space by performing heat exchange between an HVAC module, an electric compressor, a rear drive motor, and an autonomous drive controller arranged at the rear of the vehicle through a heat exchange module.

[0045] In other words, the heat exchange system for the vehicle can implement an independent refrigerant circuit by arranging all of a heat exchange module, an HVAC module, an electric compressor, a rear drive motor, an autonomous drive controller, and a switching valve at the rear of the vehicle.

[0046] In addition, according to the heat exchange system for the vehicle of the form of the present disclosure, since the heat exchange module and the switching valve are modularized, the installation space can be reduced and the line man-hours can be reduced.

[0047] In addition, effects that can be obtained or expected from forms of the present disclosure are described directly or obviously in the following detailed description. That is, various effects that can be expected from forms of the present disclosure are described in the following detailed description.

[0048] Further areas of applicability will become apparent from the description provided herein. It should be understood that the description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure. DRAWINGS

[0049] In order that the disclosure may be well understood, various forms thereof will be described, given by way of example, with reference to the accompanying drawings in which: Fig. 1 illustrates a block diagram of a heat exchange system for a vehicle according to one form of the present disclosure; Fig. 2 illustrates a perspective view of a heat exchange module applied to a heat exchange system for a vehicle according to one form of the present disclosure; Fig. 3 illustrates an exploded view of a heat exchange module applied to a heat exchange system for a vehicle according to one form of the present disclosure; Fig. 4 and Fig. 5 illustrate views for explaining an internal flow passage of a heat exchange module applied to a heat exchange system for a vehicle according to one form of the present disclosure; Fig. 6 illustrates a mounting view of an electric compressor applied to a heat exchange system for a vehicle according to one form of the present disclosure; Fig. 7 illustrates an assembly view of an autonomous drive controller applied to a heat exchange system for a vehicle according to one form of the present disclosure; Fig. 8 illustrates a view for explaining a switching valve applied to a heat exchange system for a vehicle according to one form of the present disclosure; Fig. 9 illustrates a view for explaining the operation of a heat exchange system for a vehicle according to one form of the present disclosure when the autonomous drive controller is cooled in the vehicle cooling mode; Fig. 10 illustrates a view of explaining the operation of a heat exchange system for a vehicle according to an embodiment of the present disclosure when the autonomous drive controller is cooled in a cooling mode off and a heating mode off state of the vehicle; Fig. 11 illustrates a view for explaining the operation of a heat exchange system for a vehicle according to one form of the present disclosure when the autonomous drive controller is cooled in the heating mode of the vehicle; Fig. 12 illustrates a view for explaining the operation of a heat exchange system for a vehicle according to one form of the present disclosure when the autonomous drive controller is cooled in the heating mode and the dehumidifying mode of the vehicle; Fig. 13 illustrates a view for explaining the operation of a heat exchange system for a vehicle according to one form of the present disclosure when the autonomous drive controller is not cooled in the vehicle cooling mode; Fig. 14 illustrates a view for explaining the operation of a heat exchange system for a vehicle according to one form of the present disclosure when the autonomous drive controller 70 is not cooled in the heating mode of the vehicle; and Fig. 15 illustrates a view for explaining an operation of a heat exchange system for a vehicle according to one form of the present disclosure when the autonomous drive controller is not cooled in the heating and dehumidifying mode of the vehicle.

[0050] The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. DETAILED DESCRIPTION

[0051] The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, corresponding reference characters indicate like or corresponding parts and features.

[0052] The present disclosure may be described more fully below with reference to the accompanying drawings, in which various forms of the disclosure are shown. As those skilled in the art would appreciate, the described forms may be modified in various different ways, all without departing from the spirit and / or scope of the present disclosure.

[0053] In order to clearly describe the present disclosure, parts irrelevant to the description are omitted, and identical or similar components are denoted by the same reference numerals in the specification.

[0054] In the following description, dividing names of components into first, second, and the like is for dividing the names because the names of the components are the same to each other and an order thereof is not particularly limited.

[0055] Fig. 1 illustrates a block diagram of a heat exchange system for a vehicle according to one form of the present disclosure.

[0056] Referring to Fig. 1, a heat exchange system 1 for a vehicle according to one form of the present disclosure may be applied to an electric vehicle provided with an autonomous drive controller 70.

[0057] Below, based on Fig. 1, a front view refers to an engine compartment side of the vehicle and a rear view refers to a trunk side of the vehicle.

[0058] The electric vehicle is equipped with the rear drive motor 80 that generates power for propulsion and a high-voltage battery 3 that supplies a power source to the rear drive motor 80 so that it charges and uses a high-voltage battery 3.

[0059] Here, the high-voltage battery 3 may be provided as a battery pack in which a plurality of battery cells are intensively stacked.

[0060] The rear drive motor 80, which generates power from the high-voltage battery 3, requires a cooling and heating system to operate within a certain temperature range.

[0061] Meanwhile, there is a trend that the autonomous drive control 70 is applied not only to an electric vehicle but also to a normal vehicle.

[0062] The autonomous drive controller 70 is a safety control system for improving the safety and convenience of a driver and is a device that enables automatic driving to a destination without driver manipulation.

[0063] A vehicle equipped with such an autonomous drive controller 70 is configured to control the drive in response to signal information provided by one-to-one wireless communication with a signal transmitter installed on a road.

[0064] In this case, since the autonomous drive control 70 is a fundamental component of the vehicle control, it should be provided with a cooling and heating system that operates within a guaranteed temperature range, such as the rear drive motor 80.

[0065] The autonomous drive controller 70 and the rear drive motor 80 can be cooled and heated, as described above, by an HVAC (heating, ventilation, and air conditioning) module 50, which is an air conditioning system of the vehicle.

[0066] The autonomous drive controller 70 and the rear drive motor 80, applied to one form of the present disclosure, are positioned at the rear side of a vehicle on which a rear wheel base (not shown) is arranged based on a longitudinal direction of the vehicle body.

[0067] In addition, the HVAC module 50 is positioned at the rear of the vehicle.

[0068] The heat exchange system 1 for the vehicle according to one form of the present disclosure for achieving heat exchange between the autonomous drive controller 70 and the rear drive motor 80, which includes the vehicle air conditioning system as described above, includes a heat exchange module 10, the HVAC module 50, a (control signal) electric compressor 60, the autonomous drive controller 70, the rear drive motor 80, and switching valves 40, 41, 43.

[0069] The heat exchange module 10 can be connected via a first coolant line WL1 to the radiator 5, which is positioned in the front corresponding to the engine compartment of the vehicle.

[0070] In this case, a first electronic water pump 7 is installed on the first coolant line WL1.

[0071] In addition, the heat exchange module 10 can be connected to the rear drive motor 80 via an oil line L8.

[0072] In addition, the heat exchange module 10 can be connected to a second coolant line WL2 via the autonomous drive control 70.

[0073] In this case, a second electronic water pump 73 is installed on the second coolant line WL2 between the heat exchange module 10 and the autonomous drive control 70.

[0074] The heat exchange module 10 may be divided into a first heat exchange region 10a and a second heat exchange region 10b by a diaphragm 15 and corresponding through holes, and a detailed description thereof will be continued below.

[0075] Fig. 2 illustrates a perspective view of a heat exchange module applied to a heat exchange system for a vehicle according to one form of the present disclosure, and Fig. 3 illustrates an exploded view of a heat exchange module applied to a heat exchange system for a vehicle according to one form of the present disclosure.

[0076] Referring to Fig. 2 and Fig. 3, in the form of the present disclosure, the heat exchange module 10 is arranged at the rear central region based on the longitudinal direction of the vehicle body.

[0077] The heat exchange module 10 is formed by overlapping a plurality of plate-shaped plates P1 to P12 having a plurality of through holes in a predetermined portion in a cross-sectional view.

[0078] In this case, the heat exchange module 10 is mounted such that the through holes in each of the plates P1 to P12 are arranged along the longitudinal direction of the vehicle body.

[0079] In addition, in the heat exchange module 10, the diaphragm 15 is formed in a central region in a longitudinal direction of each of the plates P1 to P12.

[0080] The plates P1 to P12 are formed to have a rectangular shape and a periphery thereof is bent in one direction to form a flange 13.

[0081] The plates P1 to P12 are assembled in the same direction so that the respective flanges 13 overlap and for this purpose the flange 13 is formed to have a tapered shape open to the outside.

[0082] For example, 12 plates P1 to P12 are overlapped to form the heat exchange module 10, and the number thereof is varied as desired so that a thickness in a width direction of the heat exchange module 10, that is, a length in a flow passage of a coolant or oil flowing therein, can be adjusted.

[0083] In addition, each of the plates P1 to P12 is provided with a plurality of through holes formed at predetermined positions of a cross section thereof.

[0084] In this case, four through holes, which is a minimum number, to eight through holes, which is a maximum number, can be formed at predetermined positions of each plate P1 to P12.

[0085] Of the plates P1 to P12, one at the front side into which a coolant or oil flows is not defined as the first plate P1, and one at the rear side into which a refrigerant flows is defined as the twelfth plate P12, and as such, they are defined in the order from front to rear.

[0086] Through holes are formed in the same position in the first plate P1 and the second plate P2.

[0087] Specifically, four through holes are formed in a region corresponding to the first heat exchange region 10a, and two through holes are formed in a region corresponding to the second heat exchange region 10b, so that a total of six through holes are formed in the first plate P1 and the second plate P2.

[0088] In addition, first to third nipples 19a, 19b, 19c, into which a first coolant, an oil and a second coolant are introduced, are directly mounted on the first plate P1.

[0089] Here, the first coolant may be set to have a relatively higher temperature than that of the second coolant.

[0090] Four through holes formed at a position corresponding to the first heat exchange region 10a on the first plate and the second plates P1 and P2 are formed at respective corners of the first heat exchange region 10a, and they include two first coolant holes 25 through which the first coolant circulates and two oil holes 27 through which an oil circulates.

[0091] In this case, the first coolant hole 25 and the oil hole 27 are arranged alternately.

[0092] In addition, two through holes formed at a position corresponding to the second heat exchange region 10b on the first plate and the second plate P1 and P2 are formed at respective portions facing each other in the second heat exchange region 10b, and include two second coolant holes 25 through which the second coolant circulates.

[0093] In addition, through holes are formed in the same positions in the third to sixth plates P3 to P6.

[0094] Specifically, four through holes are formed in a region corresponding to the first heat exchange region 10a and four through holes are formed in a region corresponding to the second heat exchange region 10b, so that a total of eight through holes are formed in the third plate P3 to the sixth plate P6.

[0095] The four through holes formed at positions corresponding to the first heat exchange region 10a on the third to sixth plates P3 to P6 are formed at the same positions as the first coolant hole 25 and the oil hole 27 formed in the first plates P1 and P2, so that the first coolant and the oil are circulated therethrough, respectively.

[0096] In addition, the four through holes formed at positions corresponding to the second heat exchange region 10b on the third to sixth plates P3 to P6 are formed at the same position as the second through hole formed in the first and second plates P1 and P2, and include two second coolant holes 29 through which the second coolant is circulated and two refrigerant holes 31 through which the second refrigerant introduced from the twelfth plate P12 side to be described below is circulated.

[0097] In this case, the two second coolant holes 29 and the two second refrigerant holes 31 are arranged alternately with each other.

[0098] In addition, the first coolant hole 25 through which the first coolant passes is formed in the seventh plate P7 at a position corresponding to the first heat exchange region 10a, but the oil hole 27 through which oil passes is removed, so that the seventh plate is configured to change a direction of oil flow.

[0099] In addition, in the seventh plate P7, the second coolant hole 29 passing the second coolant and the second refrigerant hole 31 passing the second refrigerant are formed at positions corresponding to the second heat exchange region 10b.

[0100] In addition, through holes are formed in the same positions in the eighth to eleventh plates P8 to P11.

[0101] Specifically, four through holes are formed in a region corresponding to the first heat exchange region 10a and four through holes are formed in a region corresponding to the second heat exchange region 10b, so that a total of eight through holes are formed in the eighth to eleventh plates P8 to P11.

[0102] The four through holes formed at positions corresponding to the first heat exchange region 10a on the eighth to eleventh plates P8 to P11 are formed at respective corners and include two coolant holes 25 through which the first coolant circulates and two refrigerant holes 30 through which a refrigerant inserted from the twelfth plate P12 to be described below circulates.

[0103] The refrigerant includes a first refrigerant and a second refrigerant, and it is advantageous that the first refrigerant is set to have a higher temperature and pressure than the second refrigerant.

[0104] This means that the first refrigerant contains a high-temperature and high-pressure refrigerant and the second refrigerant contains a low-temperature and low-pressure refrigerant.

[0105] In this case, the first coolant hole 25 and the refrigerant hole 30 are arranged alternately.

[0106] The first refrigerant hole 25 on the eighth to eleventh plates P8 to P11 are connected to the first refrigerant holes 25 formed in the first to seventh plates P1 to P7, and the first refrigerant hole 30 is at the same position as the oil hole 27 formed in the first to sixth plates P1 to P6, but the oil hole 27 and the first refrigerant hole 30 are mutually blocked by the seventh plate P7.

[0107] In addition, the four through holes are formed at positions corresponding to the second heat exchange region 10b on the eighth to eleventh plates P8 to P11, at respective corners of the second heat exchange region 10b, and include the second refrigerant hole 31 through which the second refrigerant introduced from the twelfth plate P12 side circulates and the second coolant hole 29 through which the second coolant introduced from the first plate P1 side circulates.

[0108] In addition, the twelfth plate P12 is formed with the first refrigerant hole 30 through which the refrigerant passes at a position corresponding to the first heat exchange region 10a and the refrigerant hole 31 through which the refrigerant passes at a position corresponding to the second heat exchange region 10b.

[0109] In addition, the first coolant hole 25, which the first coolant passes, and the second coolant hole 29, which the second coolant passes, are removed from the twelfth plate P12, and thus the inflow direction of the first coolant and the second coolant can be switched based on the twelfth plate P12.

[0110] In addition, seals 17 are alternately mounted in each of the through holes of the first to twelfth plates P1 to P2 as described above.

[0111] For example, the seal 17 is mounted on each first coolant hole 25 formed in the second, fourth, sixth, eighth and tenth plates P2, P4, P6, P8 and P10.

[0112] The seal 17 is mounted on each oil hole 27 formed in the first, third and fifth plates P1, P3 and P5.

[0113] The seal 17 is mounted on every other coolant hole 29 formed in the second, fourth, sixth, eighth and tenth plates P2, P4, P6, P8 and P10.

[0114] The gasket 17 is mounted on each first refrigerant hole 30 formed in the ninth and eleventh plates P9 and P11.

[0115] Finally, the gasket 17 is mounted in every second refrigerant hole 31 formed in the third, fifth, seventh, ninth and eleventh plates P3, P5, P7, P9 and P11.

[0116] The seal 17 may be formed to correspond to a gap between adjacent plates and corresponding flow passages may be formed and separated in a specific direction by the seal 17.

[0117] In addition, the cover 20 is mounted at the rear of the twelfth plate P12.

[0118] Fig. 4 and Fig. 5 illustrate views for explaining an internal flow passage of a heat exchange module applied to a heat exchange system for a vehicle according to one form of the present disclosure.

[0119] Referring to Fig. 4 and Fig. 5, the heat exchange module 10 has a structure in which a plurality of plates P1 to P12 selectively formed with a plurality of through holes are overlapped and assembled as described above, and five flow passages are formed therein.

[0120] The five flow passages include a first coolant flow passage WP1, a second coolant flow passage WP2, an oil flow passage OP, a first refrigerant flow passage RP1 and a second refrigerant flow passage RP2.

[0121] The first coolant flow passage WP1 is a flow passage through which the first coolant flowing from the radiator 5 through the first nipple 19a mounted corresponding to the first heat exchange surface 10a on the first plate P1 is circulated.

[0122] The first coolant flow passage WP1 has a structure in which the first coolant is introduced from the first plate P1 through the first coolant hole 25, and switches to the eleventh plate P11 bottom wall part and then through the twelfth plate P12 direction to return to the first plate P1.

[0123] In this case, the first coolant is heat exchanged and cooled by the first refrigerant introduced from the twelfth plate P12 side, corresponding to the first heat exchange region 10a.

[0124] The oil passage OP is a flow passage through which oil passing through the stern drive motor 80 is circulated through the second nipple 19b mounted on the first plate P1 corresponding to the first heat exchange region 10a.

[0125] The oil passage OP has a structure in which oil is introduced from the first plate P1 side through the oil hole 27 to move to the sixth plate P6 and then is reversed in direction through the seventh plate P7 to return to the first plate P1 side.

[0126] In this case, the oil circulating through the oil flow passage OP is heat exchanged with the first coolant to be cooled.

[0127] The second coolant flow passage WP2 is a flow passage through which the second coolant passing through the autonomous drive controller 70 is circulated through the third nipple 19c mounted on the first plate P1 corresponding to the second heat exchange region 10b.

[0128] The second coolant flow passage WP2 has a structure in which the second coolant is introduced from the first plate P1 through the second coolant hole 29 and moves to the eleventh plate P11 and then is changed direction by the twelfth plate P12 to return to the first plate P1.

[0129] In this case, the second coolant is heat exchanged and cooled by the second refrigerant introduced on the twelfth plate P12 side corresponding to the second heat exchange region 10b.

[0130] In addition, the first refrigerant flow passage RP1 is a flow passage through which the first refrigerant introduced through the valve flange 45 mounted on the cover 20 corresponding to the first heat exchange region 10a is circulated.

[0131] The first refrigerant flow passage RP1 has a structure in which the first refrigerant is introduced from the twelfth plate P12 side through the first refrigerant hole 30 to move to the eighth plate P8 and then is changed direction by the seventh plate P7 to return to the twelfth plate P12 side.

[0132] In addition, the second refrigerant flow passage RP2 is a flow passage through which the second refrigerant introduced through the valve flange 45 mounted on the cover 20 corresponding to the second heat exchange region 10b is circulated.

[0133] The second refrigerant flow passage RP2 has a structure in which the second refrigerant is introduced from the twelfth plate P12 side through the second refrigerant hole 31 to move to the third plate P3 and then is changed direction by the second plate P2 to return to the twelfth plate P12 side.

[0134] The heat exchange module 10, as described above, may be mounted on the vehicle body by a mounting bracket 21 surrounding one side of its outer side.

[0135] In the mounting bracket 21, a surface on the side of the cover 20 is opened and a surface on the side of the nipples 19a, 19b and 19c is closed, and it is provided with a mounting hole 23 (see Fig. 3) so that the nipples 19a, 19b and 19c can be mounted.

[0136] In the form of the present disclosure, the HVAC module 50 is arranged on one side in the vehicle width direction with respect to the heat exchange module 10 (see Fig. 1).

[0137] For example, it is advantageous that the HVAC module 50 is positioned on the right side of the heat exchange module 10 while facing the front of the vehicle.

[0138] The HVAC module 50 includes an evaporator 53, an indoor condenser 55, and an opening / closing door 57 within an air conditioning housing 51.

[0139] The HVAC module 50 can control the direction of indoor air by operating the opening / closing door 57 according to a cooling mode and a heating mode.

[0140] The HVAC module 50 may be arranged at the upper portion of the wheel housing on one side of the rear to be attached at least at two points.

[0141] Fig. 6 illustrates an assembly view of an electric compressor applied to a heat exchange system for a vehicle according to an embodiment of the present disclosure.

[0142] Referring to Fig. 6, in the form of the present disclosure, an electric compressor 60 serves to compress and discharge the refrigerant with the indoor condenser 55 between the heat exchange module 10 and the HVAC module 50.

[0143] The electric compressor 60 is connected between the evaporator 53 and the indoor condenser 55 by a third refrigerant line RL3.

[0144] That is, the electric compressor 60 serves to compress the refrigerant supplied from the evaporator 53 and then delivers it to the indoor condenser 55.

[0145] In addition, the refrigerant condensed from the indoor condenser 55 is supplied to the heat exchange module 10 via the first refrigerant line RL1 to be heat exchanged with a coolant or oil in the heat exchange module 10.

[0146] In addition, the electric compressor 60 is attached to the housing of the rear drive motor 80 and a reducer 61 positioned adjacent to the rear drive motor 80 at at least three points.

[0147] In this case, a separate connecting bracket 63 may be applied to the electric compressor 60 and may be fixed to be advantageous for vibration by the connecting bracket 63.

[0148] Accordingly, since the reducer 61 and the rear drive motor 80 are fixed to the mounting parts which primarily absorb the vibration of the vehicle body, if the electric compressor 60 is fixed to the reducer 61 and the rear drive motor 80, this can be advantageous against vehicle vibration.

[0149] This means that the vibration primarily absorbed by the reducer 61 and the rear drive motor 80 is transmitted to the electric compressor 60.

[0150] Fig. 7 illustrates an assembly view of an autonomous drive controller applied to a heat exchange system for a vehicle according to one form of the present disclosure.

[0151] Referring to Fig. 7, in the form of the present disclosure, an autonomous drive controller 70 is arranged on the other side of the vehicle width direction based on the heat exchange module 10.

[0152] For example, it is advantageous that the autonomous drive control 70 is positioned on the left side of the heat exchange module 10 while facing the front of the vehicle.

[0153] The autonomous drive control 70 is connected to the heat exchange module 10 through the second coolant line WL2.

[0154] The second coolant circulating within the autonomous drive controller 70 can be heat exchanged with the second refrigerant while passing through the second coolant flow passage WP2.

[0155] The autonomous drive control 70 is attached at least at two points on one side of the upper surface of a rear transverse member 71.

[0156] In this case, a second electronic water pump 73 is mounted at a position adjacent to the autonomous drive control 70 on the other side of the upper surface of the rear cross member 71.

[0157] In addition, the second electronic water pump 73 may be fixed at at least two points by a fixing bracket 75. Here, the autonomous drive controller 70 and the second electronic water pump 73 have been described as an example in which they are mounted on the rear cross member 71 of the vehicle, but the present disclosure is not limited thereto, and if they are positioned on a left rear (LH) side of the vehicle and have a mounting structure capable of performing heat exchange between the second coolant and refrigerant, they are applicable.

[0158] In the form of the present disclosure, the rear drive motor 80 is arranged longitudinally at the rear of the vehicle body.

[0159] The stern drive motor 80 is connected to the heat exchange module 10 via the oil line OL. The cooling oil circulating within the stern drive motor 80 can be heat exchanged with the first coolant while passing through the oil flow passage OP through the oil line OL.

[0160] Fig. 8 illustrates a view for explaining a switching valve applied to a heat exchange system for a vehicle according to one form of the present disclosure.

[0161] Referring to Fig. 8, in the form of the present disclosure, the switching valve includes the first to third valves 40, 41, 43 and is mounted on one side of the heat exchange module 10.

[0162] The first to third valves 40, 41, 43 are connected to the valve flange 45 on the cover 20 by a connecting pipe 47.

[0163] Four valve flanges 45 may be formed and are connected to the first to third valves 40, 41, 43 through the connecting pipe 47. The first to third valves 40, 41, 43 operate to circulate the first and second refrigerants into the heat exchange module 10.

[0164] The first valve 40 is positioned on an upper side of the heat exchange module 10 so as to be installed on the first refrigerant line RL1 between the indoor condenser 55 and the first heat exchange region 10a.

[0165] The first valve 40 controls the refrigerant discharged from the valve flange 45 to move into the first heat exchange region 10a of the heat exchange module 10.

[0166] In this case, the first refrigerant moving through the first valve 40 circulates in the heat exchange module 10 along the first refrigerant flow passage RP1.

[0167] The first refrigerant flow passage RP1 is connected from the twelfth plate P12 to the eighth plate P8 and is reversed in the seventh plate P7 to return to the twelfth plate P12.

[0168] The first refrigerant is used for heat exchange between the oil and the first coolant and the first valve 40 includes an expansion valve, which is a two-way valve.

[0169] In addition, the second valve 41 is arranged on the second refrigerant line RL2 between the first heat exchange region 10a and the second heat exchange region 10b, and one side thereof is connected to the first refrigerant flow passage RP1 of the first heat exchange region 10a via the connecting pipe 47, and the other end thereof is connected to the second refrigerant flow passage RP2 of the second heat exchange region 10b via the connecting pipe 47.

[0170] The second valve 41 connects the second refrigerant line RL2 and a branch line L branched off from the third refrigerant line RL3.

[0171] In addition, the second valve 41 is arranged adjacent to the first valve 40.

[0172] The second valve 41 may be an expansion valve which is a three-way valve connecting the second refrigerant line RL2 and the branch line L connected to one side of the third refrigerant line RL3 to circulate the second refrigerant.

[0173] In addition, the third valve 43 connects the third refrigerant line RL3 between the second heat exchange region 10b and the electric compressor 60 and the fourth refrigerant line RL4 branched from the third refrigerant line RL3 to be connected to the evaporator 53.

[0174] Additionally, the third valve 43 is disposed adjacent to the second valve 41. In this case, the second refrigerant moving through the third valve 43 circulates through the second refrigerant flow passage RP2 of the heat exchange module 10, wherein the second refrigerant flow passage RP2 is connected from the twelfth plate P12 to the third plate P3 and is reversed by the second plate P2 to return to the twelfth plate P12.

[0175] The third valve 43 may be an expansion valve, which is a three-way valve that selectively circulates the refrigerant into the third refrigerant line RL3 and the fourth refrigerant line RL4.

[0176] The following describes an operation of a heat exchange system for a vehicle for each mode of the vehicle.

[0177] Fig. 9 to Fig. 15 are illustrated views for explaining operations of respective modes of the heat exchange system for a vehicle according to one form of the present disclosure.

[0178] Hereinafter, for the convenience of the description, the first refrigerant is expressed as a high-temperature and high-pressure refrigerant and the second refrigerant is expressed as a low-temperature and low-pressure refrigerant.

[0179] Fig. 9 illustrates a case of cooling the autonomous drive controller 70 in the cooling mode of the vehicle.

[0180] The high-temperature and high-pressure refrigerant is circulated from the electric compressor 60 to the indoor condenser 55 (S1).

[0181] The first valve 40 is opened and the high-temperature and high-pressure refrigerant is circulated to the first heat exchange region 10a to be heat-exchanged with the first coolant and the oil (S2).

[0182] The second valve 41 expands the refrigerant to convert a high-temperature and high-pressure refrigerant into a low-temperature and low-pressure refrigerant.

[0183] In this case, the second valve 41 closes the branch line L and opens a passage of the second heat exchange region 10b side to circulate the low-temperature and low-pressure refrigerant to the second heat exchange region 10b via the second refrigerant line RL2 to exchange heat with the second refrigerant (S3).

[0184] The third valve 43 closes the fourth refrigerant line RL4.

[0185] It opens the third refrigerant line RL3 and circulates the low-temperature and low-pressure refrigerant to the evaporator 53 (S4).

[0186] Meanwhile, the opening / closing door 57 opens the side of the evaporator 53.

[0187] As described above, while the autonomous drive controller 70 is cooled by heat exchange with the second coolant, the cooling mode can be provided by supplying cold air inside the vehicle by the low-temperature and low-pressure refrigerant introduced via the third refrigerant line RL3 and the operation of the opening / closing door 57.

[0188] Fig. 10 illustrates a case of cooling the autonomous drive controller 70 in a cooling mode off and a heating mode off state of the vehicle.

[0189] The high-temperature and high-pressure refrigerant is circulated from the electric compressor 60 to the indoor condenser 55.

[0190] The first valve 40 is opened and the high-temperature and high-pressure refrigerant is circulated to the first heat exchange region 10a so that it is heat-exchanged with the first coolant and the oil (S2).

[0191] The second valve 41 expands the refrigerant to convert the high-temperature and high-pressure refrigerant into the low-temperature and low-pressure refrigerant.

[0192] It closes the branch line L and opens a passage of the second heat exchange region 10b side, so that the low-temperature and low-pressure refrigerant circulates to the second heat exchange region 10b to exchange heat with the second refrigerant (S3).

[0193] The third valve 43 closes the first refrigerant line RL3 and opens the fourth refrigerant line RL4.

[0194] In this case, the low-temperature and low-pressure refrigerant is circulated to the electric compressor 60.

[0195] Meanwhile, the opening / closing door 57 blocks the side of the interior condenser 55 so that hot air does not flow into the vehicle interior.

[0196] As described above, the third refrigerant line RL3 can be closed to cool the autonomous drive controller 70 by heat exchange with the second refrigerant regardless of the cooling mode or heating mode.

[0197] Fig. 11 illustrates a case of cooling the autonomous drive controller 70 in the heating mode of the vehicle.

[0198] The high-temperature and high-pressure refrigerant is circulated from the electric compressor 60 to the indoor condenser 55 (S1).

[0199] The first valve 40 expands the refrigerant to convert the high-temperature and high-pressure refrigerant into the low-temperature and low-pressure refrigerant.

[0200] The low-temperature and low-pressure refrigerant is circulated to the first heat exchange region 10a and heat exchange is performed with the first refrigerant and the oil (S2).

[0201] The second valve 41 closes the branch line L and opens the passage of the second heat exchange region 10b side.

[0202] The low-temperature and low-pressure refrigerant is circulated to the second heat exchange region 10b and heat exchange is performed with the second refrigerant (S3).

[0203] The third valve 43 closes the third refrigerant line RL3 and opens the fourth refrigerant line RL4 so that the low-temperature and low-pressure refrigerant circulates to the electric compressor 60 (S4).

[0204] Meanwhile, the opening / closing door 57 opens the side of the indoor condenser 55.

[0205] As described above, it is possible to provide the heating mode by cooling the autonomous drive controller 70 by exchanging heat with the second coolant and supplying hot air to the interior of the vehicle by operating the opening / closing door 57:

[0206] Fig. 12 illustrates a case of cooling the autonomous drive controller 70 in the heating mode and the dehumidifying mode of the vehicle.

[0207] The high-temperature and high-pressure refrigerant is circulated from the electric compressor 60 to the indoor condenser 55 (S1).

[0208] The first valve 40 expands the refrigerant to convert the high-temperature and high-pressure refrigerant to the low-temperature and low-pressure refrigerant.

[0209] The low-temperature and low-pressure refrigerant is circulated to the first heat exchange region 10a and heat exchange with the first refrigerant and the oil is performed (S2).

[0210] The second valve 41 opens the passage of the second heat exchange region 10b side.

[0211] The low-temperature and low-pressure refrigerant is circulated to the second heat exchange region 10b and heat exchange with the second refrigerant is performed.

[0212] The third valve 43 closes the fourth refrigerant line RL4 and opens the third refrigerant line RL3 to circulate the low-temperature and low-pressure refrigerant to the evaporator 53. (S4)

[0213] The low-temperature and low-pressure refrigerant can be circulated in the evaporator 53 to perform the operation of the dehumidification mode.

[0214] Meanwhile, the opening / closing door 57 opens the side of the indoor condenser 55.

[0215] As described above, while the autonomous drive controller 70 is cooled by the heat exchange with the second coolant, the outside air passes through the low-temperature and low-pressure refrigerant in the evaporator 53 and then passes through the high-temperature and high-pressure refrigerant in the interior condenser 55 to be supplied to the interior of the vehicle, thereby providing the heating mode and the dehumidification mode.

[0216] Fig. 13 illustrates a case of not cooling the autonomous drive controller 70 in the cooling mode of the vehicle.

[0217] The high-temperature and high-pressure refrigerant is circulated from the electric compressor 60 to the indoor condenser 55 (S1).

[0218] The first valve 40 is opened and the high-temperature and high-pressure refrigerant is circulated to the first heat exchange region 10a to be heat-exchanged with the first coolant and the oil.

[0219] The second valve 41 closes the passage of the second heat exchange region 10b side and opens the branch line L (S3).

[0220] The high-temperature and high-pressure refrigerant is circulated to a third refrigerant line RL3 via the branch line L.

[0221] The third valve 43 expands the refrigerant to convert the high-temperature and high-pressure refrigerant into a low-temperature and low-pressure refrigerant.

[0222] The third valve 43 closes the fourth refrigerant line RL4 and opens the third refrigerant line RL3 to circulate the low-temperature and low-pressure refrigerant to the evaporator 53 (S4).

[0223] Meanwhile, the opening and closing door 57 opens the side of the evaporator 53.

[0224] As described above, the cooling mode can be provided by providing cold air to the interior of the vehicle without heat exchange of the autonomous drive control 70.

[0225] Fig. 14 illustrates a non-cooling mode of the autonomous drive controller 70 in the heating mode of the vehicle.

[0226] The high-temperature and high-pressure refrigerant is circulated from the electric compressor 60 to the indoor condenser 55 (S1).

[0227] The first valve 40 expands the refrigerant to convert the high-temperature and high-pressure refrigerant to the low-temperature and low-pressure refrigerant.

[0228] The low-temperature and low-pressure refrigerant is circulated to the first heat exchange region 10a and heat exchange with the first refrigerant and the oil is performed (S2).

[0229] The second valve 41 closes the passage of the second heat exchange region 10b side and opens the branch line L (S3).

[0230] The low-temperature and low-pressure refrigerant is circulated to the third refrigerant line RL3 via the branch line L.

[0231] The third valve 43 closes the third refrigerant line RL3 of the evaporator 53 side and opens the fourth refrigerant line RL4 to circulate the low-temperature and low-pressure refrigerant to the electric compressor 60 (S4).

[0232] Meanwhile, the opening / closing door 57 opens the side of the indoor condenser 55.

[0233] As described above, the heating mode can be realized by supplying hot air to the interior of the vehicle without heat exchange of the autonomous drive control 70.

[0234] Fig. 15 illustrates a non-cooling mode of the autonomous drive controller 70 in the heating and dehumidifying mode of the vehicle.

[0235] The high-temperature and high-pressure refrigerant is circulated from the electric compressor 60 to the indoor condenser 55 (S1).

[0236] The first valve 40 allows the refrigerant to expand to convert the high temperature and high pressure refrigerant to the low temperature and low pressure refrigerant.

[0237] The low-temperature and low-pressure refrigerant is circulated to the first heat exchange region 10a and heat exchange with the first refrigerant and the oil is performed.

[0238] The second valve 41 closes the passage of the second heat exchange region 10b side and opens the branch line L (S3).

[0239] The low-temperature and low-pressure refrigerant is circulated via branch line L to the third refrigerant line R13.

[0240] The third valve 43 closes the fourth refrigerant line RL4 and opens the third refrigerant line RL3 to circulate the low-temperature and low-pressure refrigerant to the evaporator 53 (S4).

[0241] Meanwhile, the opening / closing door 57 opens the side of the indoor condenser 55.

[0242] As described above, after passing through the low-temperature and low-pressure refrigerant in the evaporator 53, the outside air passes through the indoor condenser 55 and is supplied to the interior of the vehicle, and thus the heating mode and the dehumidification mode can be provided to the autonomous drive controller 70 without heat exchange.

[0243] Accordingly, the heat exchange system for the vehicle according to one form of the present disclosure can reduce a packaging space by performing heat exchange between the HVAC module, the electric compressor, the rear drive motor, and the autonomous drive controller through a heat exchange module.

[0244] In other words, the heat exchange system for the vehicle can reduce the packing space by heat exchanging four types of fluids with one heat exchange module.

[0245] In addition, it is possible to provide heat exchange of cooling oil, which is essential for an oil-cooled drive motor developed according to high performance of a drive motor applied to an electric vehicle, through the heat exchange module.

[0246] In addition, the heat exchange system for the vehicle according to one form of the present disclosure may implement an independent refrigerant circuit by disposing all of the heat exchange module, HVAC module, electric compressor, autonomous drive controller, rear drive motor, and switching valve in the rear of the vehicle.

[0247] In addition, according to the heat exchange system for the vehicle in one form of the present disclosure, since the heat exchange module and the switching valve are modularized, the installation space can be reduced and the working man-hours on the line can be reduced.

[0248] In addition, according to the heat exchange system for the vehicle of one form of the present disclosure, it is possible to improve fuel economy because heat exchange of the autonomous drive control can be controlled independently for each of the cooling mode, heating mode, and dehumidifying mode of the vehicle.

[0249] While this disclosure has been described in connection with what are presently considered to be practical forms, it is to be understood that the disclosure is not limited to the forms disclosed, but on the contrary is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the present disclosure. <Beschreibung von Bezugszeichen> 1 heat exchange system 3 high-voltage battery 5 Radiators 7 First electronic water pump 10 Heat exchange module 10a First heat exchange region 10b Second heat exchange region 13 Flange 15 Diaphragm 17 Seal 19a First nipple 19b Second nipple 19c Third nipple 20 Cover 21 Mounting clamp 23 Mounting hole 25 First coolant hole 27 Oil Hole 29 Second coolant hole 30 First refrigerant hole 31 Second refrigerant hole 40 First valve 41 Second valve 43 Third valve 45 valve flange 47 Connecting pipe 50 HVAC module 51 air conditioning housing 53 evaporators 55 Interior condenser 57 Opening / closing door 60 electric compressor 61 reducers 63 connecting clamp 70 Autonomous drive control 71 Rear transverse component 73 Second electronic water pump 75 Fixing clamp 80 stern drive motor WL1 First coolant line WL2 Second coolant line RL1 First refrigerant line RL2 Second refrigerant line RL3 Third refrigerant line RL4 Fourth refrigerant line OL oil line P1 - P12 plates L Branch Management WP1 First coolant flow passage WP2 Second coolant flow passage OP oil flow passage RP1 First refrigerant flow passage RP2 Second refrigerant flow passage

Claims

[1] Heat exchange system (1) for a vehicle, the heat exchange system comprising: a heat exchange module (10) arranged at a rear in a longitudinal direction of the vehicle, which is formed from a plurality of overlapping plates (P1-P12), each of the plates (P1-P12) including a plurality of through-holes (23-31) in a predetermined section, and which includes a first heat exchange region (10a) and a second heat exchange region (10b), wherein the first heat exchange region (10a) includes a first coolant flow passage (WP1), an oil flow passage (OP), and a first refrigerant flow passage (RP1), and the second heat exchange region (10b) a second coolant flow passage (WP2) and a second refrigerant flow passage (RP2); a radiator (5) installed in a front longitudinal direction of a vehicle body and configured to allow heat exchange while a first coolant circulating therein passes through the first coolant flow passage (WP1); a heating, ventilating, and air conditioning (HVAC) module (50) arranged at the rear in the longitudinal direction of the vehicle, including an air conditioning case (51) including an evaporator (53), an interior condenser (55), and an opening / closing door (57), and configured to operate the opening / closing door (57) based on a cooling mode and a heating mode, and to control a direction of interior air; an electric compressor (60) configured to deliver a refrigerant to the indoor condenser (55) between the heat exchange module (10) and the HVAC module (50); a stern drive motor (80) arranged at the stern and configured to exchange heat with the first coolant while a cooling oil circulating therein passes through the oil flow passage (OP); an autonomous drive controller (70) arranged at the rear and configured to allow heat exchange between the refrigerant and a second coolant while the second coolant circulating therein passes through the second coolant flow passage (WP2); and a switching valve (40, 41, 43) which includes: a first valve (40) installed on a first refrigerant line (RL1) between the indoor condenser (55) and the first heat exchange region (10a), a second valve (41) installed on a second refrigerant line (RL2) between the first heat exchange region (10a) and the second heat exchange region (10b) and configured to connect a branch line (L) branched from the second refrigerant line (RL2); and a third valve (43) installed on a third refrigerant line (RL3) connected to the electric compressor (60) via the second heat exchange region (10b) and the indoor condenser (55), and configured to be connected to a fourth refrigerant line (RL4) branching from the third refrigerant line (RL3). [2] The heat exchange system (1) for a vehicle according to claim 1, wherein the heat exchange module (10) includes the plurality of through holes (23-31) formed on each plate of the plurality of plates (P1-P12) along the longitudinal direction of the vehicle body, and is mounted on an upper surface of the rear drive motor (80) by a mounting bracket (21). [3] Heat exchange system (1) for the vehicle according to claim 1, wherein the heat exchange module (10) comprises: a flange (13) formed along a circumference along each plate of the plurality of plates (P1-P12); and a diaphragm (15) formed at a center portion in a longitudinal direction of each plate of the plurality of plates (P1-P12), and configured to divide the first heat exchange region (10a) and the second heat exchange region (10b). [4] The heat exchange system (1) for the vehicle according to claim 1, wherein the first heat exchange region (10a) is configured in a structure in which: the first coolant circulates through a first coolant line (WL1) connecting the radiator (5) and the first coolant flow passage (WP1), the cooling oil is circulated through an oil line (OL), connecting the stern drive motor (80) and the oil flow passage (OP); and the first refrigerant is circulated through the first refrigerant line (RL1) so that heat exchange of the first coolant and the cooling oil is carried out by the first refrigerant. [5] The heat exchange system (1) for the vehicle according to claim 1, wherein the second heat exchange region (10b) is configured in a structure in which: the second coolant is circulated through a second coolant line (WL2) which controls the autonomous drive control (70) and the second coolant flow passage (WP2); the first refrigerant flows in from the second refrigerant line (RL2) and is circulated through the third refrigerant line (RL3) and the fourth refrigerant line (RL4), and a heat exchange of the second coolant is carried out by the refrigerant. [6] The heat exchange system (1) for the vehicle according to claim 1, wherein the first valve (40) is an expansion valve arranged on an upper side of the heat exchange module (10) to circulate the refrigerant discharged from the indoor condenser (55) in the first refrigerant flow passage (RP1). [7] The heat exchange system (1) for the vehicle according to claim 6, wherein the second valve (41) is an expansion valve disposed adjacent to the first valve (40) and configured to connect the branch line (L) connected to one side of the third refrigerant line (RL3) to the second refrigerant line (RL2). [8] The heat exchange system (1) for the vehicle according to claim 7, wherein the third valve (43) is an expansion valve disposed adjacent to the second valve (41) and configured to selectively circulate a refrigerant through the third refrigerant line (RL3) and the fourth refrigerant line (RL4). [9] Heat exchange system (1) for the vehicle according to claim 8, wherein when cooling the autonomous drive control (70) in a cooling mode of the vehicle a first refrigerant is circulated to the interior condenser (55) from the electric compressor (60); the first valve (40) is opened, the first refrigerant circulates to the first heat exchange region (10a), and allows heat exchange of the first coolant; the second valve (41) expands the refrigerant, and transforms the first refrigerant into a second refrigerant that is relatively cooler than the first refrigerant, closes the branch line (L), opens a passage of a second heat exchange region side, and circulates the second refrigerant to the second heat exchange region (10b), and allows heat exchange of the second coolant; and the third valve (43) closes the fourth refrigerant line (RL4) and opens the third refrigerant line (RL3), and allows the second refrigerant to circulate to the evaporator (53). [10] The heat exchange system (1) for the vehicle according to claim 8, wherein, when cooling the autonomous drive control (70) in a cooling mode off state and a heating mode off state of the vehicle: the first refrigerant circulates to the interior condenser (55) from the electric compressor (60), the first valve (40) is opened, the first refrigerant circulates to the first heat exchange region (10a), and allows heat exchange of the first coolant; the second valve (41) expands the refrigerant, and transforms the first refrigerant into a second refrigerant which is relatively cooler than the first refrigerant, closes the branch line (L), opens a passage of a second heat exchange region side and circulates the second refrigerant to the second heat exchange region (10b), and allows heat exchange of the second coolant, and the third valve (43) closes the third refrigerant line (RL3) and opens the fourth refrigerant line (RL4), and the second refrigerant circulates to the electric compressor (60). [11] Heat exchange system (1) for the vehicle according to claim 8, wherein when cooling the autonomous drive control (70) in a heating mode of the vehicle: the first refrigerant is circulated in the interior condenser (55) from the electric compressor (60); the first valve (40) expands the refrigerant, and transforms the first refrigerant into a second refrigerant that is relatively cooler than the first refrigerant, and circulates the second refrigerant to the first heat exchange region (10a), allowing heat exchange of the first coolant; the second valve (41) opens a passage of a second heat exchange region side and the second refrigerant circulates to the second heat exchange region (10b), allowing heat exchange of the second refrigerant, and the third valve (43) closes the third refrigerant line (RL3) and opens the fourth refrigerant line (RL4), and allows the second refrigerant to circulate to the electric compressor (60). [12] Heat exchange system (1) for the vehicle according to claim 8, wherein when cooling the autonomous drive control (70) in a heating mode and a dehumidification mode of the vehicle the first refrigerant is circulated to the interior condenser (55) from the electric compressor (60); the first valve (40) expands the refrigerant and transforms the first refrigerant into a second refrigerant which is relatively cooler than the first refrigerant, circulates the second refrigerant to the first heat exchange region (10a), and allows heat exchange of the first coolant; the second valve (41) opens a passage of a second heat exchange region side, the second refrigerant circulates to the second heat exchange region (10b), and allows heat exchange of the second refrigerant; and the third valve (43) closes the fourth refrigerant line (RL4), opens the third refrigerant line (RL3), and the second refrigerant circulates to the evaporator (53). [13] Heat exchange system (1) for the vehicle according to claim 8, wherein when the autonomous drive control (70) is not cooled in a cooling mode of the vehicle: the first refrigerant is circulated to the interior condenser (55) from the electric compressor (60); the first valve (40) is opened, the first refrigerant circulates to the first heat exchange region (10a), and allows heat exchange of the first coolant; the second valve (41) closes a passage of a second heat exchange region side, opens the branch line (L), and circulates the first refrigerant to the third refrigerant line (RL3) via the branch line (L); and the third valve (43) expands the refrigerant and converts the first refrigerant into a second refrigerant that is relatively cooler than the first refrigerant, and closes the fourth refrigerant line (RL4), opens the third refrigerant line (RL3), and the second refrigerant circulates to the evaporator (53). [14] Heat exchange system (1) for the vehicle according to claim 8, wherein when the autonomous drive control (70) is not cooled in a heating mode of the vehicle: the first refrigerant is circulated to the interior condenser (55) from the electric compressor (60); the first valve (40) expands the refrigerant, and transforms the first refrigerant into a second refrigerant that is relatively cooler than the first refrigerant, circulates the second refrigerant to the first heat exchange region (10a), and allows heat exchange of the first coolant; the second valve (41) closes a passage of a second heat exchange region side, opens the branch line (L), and the second refrigerant circulates to the third refrigerant line (RL3) via the branch line (L); and the third valve (43) closes the third refrigerant line (RL3) of an evaporator side, opens the fourth refrigerant line (RL4), and the second refrigerant circulates to the electric compressor (60). [15] Heat exchange system (1) for the vehicle according to claim 8, wherein when the autonomous drive control (70) is not cooled in a heating mode and a dehumidification mode of the vehicle, the first refrigerant is circulated to the interior condenser (55) from the electric compressor (60); the first valve (40) expands the refrigerant, and transforms the first refrigerant into a second refrigerant which is relatively cooler than the first refrigerant, and circulates the second refrigerant to the first heat exchange region (10a), allowing heat exchange of the first coolant; the second valve (41) closes a passage of a second heat exchange region side, opens the branch line (L), and circulates the second refrigerant to the third refrigerant line (RL3) through the branch line (L); and the third valve (43) closes the fourth refrigerant line (RL4), opens the third refrigerant line (RL3), and the second refrigerant circulates to the evaporator (53). [16] The heat exchange system (1) for the vehicle according to claim 1, further comprising a connecting bracket (63) that absorbs vibrations of a vehicle body; wherein the electric compressor (60) is fixed at at least two points on a casing of the rear drive motor (80) by the connecting bracket (63). [17] The heat exchange system (1) for the vehicle according to claim 1, wherein the autonomous drive control (70) is fixed at at least two points on a first side of the upper surface of a rear cross member (71).

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