Dual six-way valve for vehicle cooling system

Abstract

The present disclosure relates to a dual six-way valve for a vehicle cooling system, which provides a plurality of modes, reduces the number of components of the cooling system, and improves packaging compared to a conventional cooling system. The dual six-way valve includes an upper housing including a plurality of upper threaded joints provided at equal intervals on an outer circumferential surface thereof, a lower housing stacked below the upper housing and including a plurality of lower threaded joints provided at equal intervals on an outer circumferential surface thereof, an upper hub rotatably installed within the upper housing, a lower hub rotatably installed within the lower housing and stacked below the upper hub, and a driving device for rotating the upper hub and the lower hub.

Description

Technical Field

[0001] This disclosure relates to a dual six-way valve for a vehicle cooling system, and more specifically, to a dual six-way valve for a vehicle cooling system that, compared to conventional cooling systems, reduces the number of components in the cooling system, improves the enclosure, and can perform more different modes. Background Technology

[0002] The statements in this section are provided only as background information in connection with this disclosure and may not constitute prior art.

[0003] Generally, since the electric motor is used as the drive source rather than an engine, electric vehicles also include an inverter, battery, on-board charger (OBC), and low-voltage DC-DC converter (LDC) for driving the electric motor. Because the added components described above have different target cooling temperatures, two radiators are used to configure separate cooling circuits for effective cooling.

[0004] Conventional cooling systems for electric vehicles consist of a first cooling circuit using a first radiator and a second cooling circuit using a second radiator. Each cooling circuit implements various cooling modes depending on conditions (e.g., external temperature).

[0005] However, we have found that, since the cooling system also includes two or more three-way valves, multiple T-pipes, bypass lines, etc., the problem in achieving various cooling modes is that, compared with multiple valves, the main costs and weights increase, the system packaging complexity increases, and the efficiency of achieving cooling modes is low.

[0006] Furthermore, if a separate cooling mode is implemented based on a T-tube, for example, if the cooling circuit operates in a battery-separated mode, there is a problem that the high-temperature coolant is not completely blocked in the T-tube and a small amount of coolant flows into the battery.

[0007] The information disclosed in the background section is only intended to enhance the understanding of the background of this disclosure and may therefore contain information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0008] The present invention provides a dual six-way valve for a vehicle cooling system. Compared with conventional cooling systems, the dual six-way valve can reduce the number of components in the cooling system, improve the packaging, and also perform more different modes.

[0009] In one form of this disclosure, a dual six-way valve for a vehicle cooling system includes: an upper housing comprising a plurality of threaded joints equally spaced on its outer circumferential surface, wherein the plurality of threaded joints are coupled to and supported by a first portion of the cooling system; a lower housing stacked below the upper housing and comprising a plurality of threaded joints equally spaced on its outer circumferential surface, wherein the plurality of threaded joints are coupled to and supported by a second portion of the cooling system; an upper hub rotatably mounted within the upper housing; and a plurality of upper flow channels independently disposed on the upper housing. The system includes: a hub, with each upper flow channel coupled to two upper threaded joints selected based on the rotation angle of the upper hub, such that coolant flows through each of the upper flow channels; a lower hub, rotatably mounted within a lower housing and stacked below the upper hub; multiple lower flow channels, independently disposed within the lower hub, each coupled to two lower threaded joints selected based on the rotation angle of the lower hub, such that coolant flows through each of the lower flow channels; and a drive device configured to rotate the upper and lower hubs.

[0010] The plurality of upper flow channels include: a first upper flow channel coupled to two upper threaded joints selected based on the rotation angle of the upper hub, and configured such that the two selected upper threaded joints can communicate with each other, allowing coolant to flow through the first upper flow channel; a second upper flow channel disposed at a predetermined distance from the first upper flow channel in the circumferential direction of the upper hub, coupled to two upper threaded joints selected based on the rotation angle of the upper hub, and configured such that the two selected upper threaded joints can communicate with each other, allowing coolant to flow through the second upper flow channel; and a third upper flow channel disposed at a predetermined distance from the second upper flow channel in the circumferential direction of the upper hub, coupled to the remaining two upper threaded joints not coupled to the first and second upper flow channels, and configured such that the remaining two upper threaded joints can communicate with each other, allowing coolant to flow through the third upper flow channel.

[0011] In another embodiment, the plurality of lower flow channels include: a first lower flow channel coupled to two lower threaded joints selected from a plurality of lower threaded joints based on the rotation angle of the lower hub, and configured such that the two selected lower threaded joints can communicate with each other, allowing coolant to flow through the first lower flow channel; a second lower flow channel disposed at a predetermined distance from the first lower flow channel in the circumferential direction of the lower hub, coupled to two lower threaded joints selected from a plurality of lower threaded joints based on the rotation angle of the lower hub, and configured such that the two selected lower threaded joints can communicate with each other, allowing coolant to flow through the second lower flow channel; and a third lower flow channel disposed at a predetermined distance from the second lower flow channel in the circumferential direction of the lower hub, coupled to the remaining two lower threaded joints not coupled to the first and second lower flow channels, and configured such that the remaining two lower threaded joints can communicate with each other, allowing coolant to flow through the third lower flow channel.

[0012] Furthermore, the first threaded connector of the plurality of threaded joints is coupled to the inlet-side coolant line of the first radiator in the cooling system components. The second threaded connector of the plurality of threaded joints is coupled to the outlet-side coolant line of the first radiator in the cooling system components.

[0013] Furthermore, the third threaded connector of the plurality of threaded joints is coupled to the inlet-side coolant line of the power electronics (PE) component in the cooling system components. The fourth threaded connector of the plurality of threaded joints is coupled to the outlet-side coolant line of the PE component in the cooling system components.

[0014] Furthermore, the fifth threaded connector of the plurality of threaded joints is coupled to the first inlet-side coolant line of the water-cooled heat exchanger, which is coupled to the first radiator in the cooling system components. The sixth threaded connector of the plurality of threaded joints is coupled to the first outlet-side coolant line of the water-cooled heat exchanger, which is coupled to the first radiator in the cooling system components.

[0015] Furthermore, the first of the plurality of threaded connectors is coupled to the inlet-side coolant line of the second radiator in the cooling system components. The second of the plurality of threaded connectors is coupled to the outlet-side coolant line of the second radiator in the cooling system components.

[0016] Furthermore, the third threaded connector of the plurality of threaded joints is coupled to the inlet-side coolant line of the battery component in the cooling system. The fourth threaded connector of the plurality of threaded joints is coupled to the outlet-side coolant line of the battery component in the cooling system.

[0017] Furthermore, the fifth threaded connector of the plurality of threaded joints is coupled to the second inlet-side coolant line of the water-cooled heat exchanger, which is coupled to the second radiator in the cooling system components. The sixth threaded connector of the plurality of threaded joints is coupled to the second outlet-side coolant line of the water-cooled heat exchanger, which is coupled to the second radiator in the cooling system components.

[0018] Furthermore, when the rotation angle of the upper hub is 0°, the first upper flow channel is coupled to the second and third upper threaded joints among the plurality of upper threaded joints, so that coolant flows through the first upper flow channel; the second upper flow channel is coupled to the fourth and fifth upper threaded joints among the plurality of upper threaded joints, so that coolant flows through the second upper flow channel; and the third upper flow channel is coupled to the first and sixth upper threaded joints among the plurality of upper threaded joints, so that coolant flows through the third upper flow channel.

[0019] Furthermore, when the rotation angle of the lower hub is 0°, the first lower flow channel is coupled to the second and third lower threaded joints among the plurality of lower threaded joints, so that coolant flows through the first lower flow channel; the second lower flow channel is coupled to the fourth and fifth lower threaded joints among the plurality of lower threaded joints, so that coolant flows through the second lower flow channel; and the third lower flow channel is coupled to the sixth lower threaded joint and the first lower threaded joint among the plurality of lower threaded joints, so that coolant flows through the third lower flow channel.

[0020] Furthermore, independently formed first and second upper flow channels are disposed within the upper hub, both extending from the outer circumferential surface of the upper hub to its bottom. Similarly, independently formed first and second lower flow channels are disposed within the lower hub, both extending from the outer circumferential surface of the lower hub to its top. Based on the rotation angle of the upper and lower hubs, the bottom of the first upper flow channel and the top of the first lower flow channel are selectively coupled, allowing coolant to flow through both channels. Likewise, the bottom of the second upper flow channel and the top of the second lower flow channel are selectively coupled, allowing coolant to flow through both channels. Meanwhile, the top of the first upper flow channel and the top of the second upper flow channel are respectively coupled to the upper threaded joint selected based on the rotation angle of the upper hub among the plurality of upper threaded joints, so that the coolant flows through the first upper flow channel and the second upper flow channel, and the bottom of the first lower flow channel and the bottom of the second lower flow channel are respectively coupled to the lower threaded joint selected based on the rotation angle of the lower hub among the plurality of lower threaded joints, so that the coolant flows through the first lower flow channel and the second lower flow channel.

[0021] Furthermore, the top of the first upper flow channel is coupled to a second threaded connector selected from a plurality of threaded connectors based on a predetermined rotation angle of the upper hub, allowing coolant to flow through the first upper flow channel. The top of the second upper flow channel is coupled to a third threaded connector selected from a plurality of threaded connectors based on a predetermined rotation angle of the upper hub, allowing coolant to flow through the second upper flow channel.

[0022] Furthermore, the bottom of the first lower flow channel is coupled to a first threaded connector selected based on the rotation angle of the lower hub among a plurality of threaded connectors, allowing coolant to flow through the first lower flow channel. The bottom of the second lower flow channel is coupled to a second threaded connector selected based on the rotation angle of the lower hub among a plurality of threaded connectors, allowing coolant to flow through the second lower flow channel.

[0023] Furthermore, two independently formed upper flow channels, a third and a fourth, are disposed within the upper hub and extend from the outer circumferential surface of the upper hub to its bottom. Similarly, two independently formed lower flow channels, a third and a fourth, are disposed within the lower hub and extend from the outer circumferential surface of the lower hub to its top. Based on the rotation angle of the upper and lower hubs, the bottom of the third upper flow channel and the top of the third lower flow channel are selectively coupled, allowing coolant to flow through them. Likewise, the bottom of the fourth upper flow channel and the top of the fourth lower flow channel are selectively coupled, allowing coolant to flow through them. Meanwhile, the top of the third upper flow channel and the top of the fourth upper flow channel are respectively coupled to the upper threaded joint selected based on the rotation angle of the upper hub among the plurality of upper threaded joints, so that coolant flows through the third upper flow channel and the fourth upper flow channel, and the bottom of the third lower flow channel and the bottom of the fourth lower flow channel are respectively coupled to the lower threaded joint selected based on the rotation angle of the lower hub among the plurality of lower threaded joints, so that coolant flows through the third lower flow channel and the fourth lower flow channel.

[0024] Furthermore, the top of the third upper flow channel is coupled to a second threaded connector selected from a plurality of threaded connectors based on a predetermined rotation angle of the upper hub, allowing coolant to flow through the third upper flow channel. The top of the fourth upper flow channel is coupled to a first threaded connector selected from a plurality of threaded connectors based on a rotation angle of the upper hub, allowing coolant to flow through the fourth upper flow channel.

[0025] Furthermore, the bottom of the third lower flow channel is coupled to a first threaded connector among a plurality of threaded connectors, selected based on a predetermined rotation angle of the lower hub, allowing coolant to flow through the third lower flow channel. The bottom of the fourth lower flow channel is coupled to a fifth threaded connector among a plurality of threaded connectors, selected based on a predetermined rotation angle of the lower hub, allowing coolant to flow through the fourth lower flow channel.

[0026] Furthermore, the drive device includes: a motor configured to rotate in a first direction and a second direction; a first ratchet configured to have a first latch pawl and a first ramp repeatedly formed on its outer circumferential surface in a circumferential direction and mounted on the shaft of the motor; a first spring clip configured to have a first end mounted on an upper hub and a second end located in the first ramp in a manner locked to the first latch pawl; a second ratchet configured to have a second latch pawl and a second ramp repeatedly formed on its outer circumferential surface in a circumferential direction and mounted on the shaft of the motor; and a second spring clip configured to have a first end mounted on a lower hub and a second end located in the second ramp in a manner locked to the second latch pawl.

[0027] Further areas of application will become apparent from the description provided herein. It should be understood that this description and specific examples are for illustrative purposes only and are not intended to limit the scope of this disclosure. Attached Figure Description

[0028] To better understand this disclosure, its various forms, given by way of example, will now be described with reference to the accompanying drawings, in which:

[0029] Figure 1 This is a circuit diagram showing an example of a cooling system used in electric vehicles;

[0030] Figure 2 This is a circuit diagram showing the flow of coolant when the cooling system is in heat pump mode and battery heating mode;

[0031] Figure 3 This is a circuit diagram showing the flow of coolant when the cooling system is in integrated cooling mode;

[0032] Figure 4 This is a circuit diagram showing the flow of coolant when the cooling system is in separate cooling mode;

[0033] Figure 5 This is a perspective view showing the coupling of a dual six-way valve for a vehicle cooling system according to one form of the present disclosure;

[0034] Figure 6 This is an exploded perspective view showing a dual six-way valve for a vehicle cooling system in an exemplary form according to this disclosure;

[0035] Figure 7 From Figure 5 The diagram showing observations of AA in the image;

[0036] Figure 8 From Figure 5 A diagram illustrating the observation of BB in the image;

[0037] Figure 9 This is a circuit diagram showing the matching of the upper and lower threaded joints in a component of a dual six-way valve according to this disclosure with the portion coupled to the cooling system of an electric vehicle.

[0038] Figures 10 to 12 These are diagrams illustrating the coolant flow in the components of a dual six-way valve according to the rotation angle of the upper hub, as shown in the exemplary form of this disclosure.

[0039] Figures 13 to 15 These are diagrams illustrating the flow of coolant in components of a double six-way valve according to the rotation angle of the lower hub, as shown in another form of the present disclosure; and

[0040] Figures 16 to 21 The diagrams illustrate the operating states of the upper and lower hubs of some forms of double six-way valves according to this disclosure, which are used to match the upper and lower flow channels, and the states in which the flow of coolant is controlled according to the operating states.

[0041] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of this disclosure in any way. Detailed Implementation

[0042] The following description is merely exemplary in nature and is not intended to limit this disclosure, its application, or its use. It should be understood that in all the accompanying drawings, corresponding reference numerals denote similar or corresponding parts and features.

[0043] In the following description, exemplary forms of this disclosure will be illustrated with reference to the accompanying drawings. The items depicted in the drawings may differ from the actual implementation shown as schematic diagrams, in order to facilitate the description of exemplary forms of this disclosure.

[0044] It should be understood that the accompanying drawings are not necessarily drawn to scale and present slightly simplified representations of various preferred features illustrating the basic principles of this disclosure. Specific design features of this disclosure (including, for example, specific dimensions, orientations, positions, and shapes) will be determined in part by the specific intended application and usage environment.

[0045] Throughout the specification, when a part “comprises” an element, the word “comprises” will be understood to imply that the part is included, rather than excluding other elements, unless there is an explicit description to the contrary.

[0046] Reference Figures 1 to 4 One form of cooling system for electric vehicles is described in this disclosure.

[0047] Cooling systems for electric vehicles include several components, such as multiple three-way valves and T-tubes, as well as connecting hose types for controlling the flow of coolant, to separate and individually cool the power electronic (PE) components and battery, or to integrate and cool the PE components and battery.

[0048] In addition, the cooling system for electric vehicles includes two radiators located at the front of the vehicle and parallel coolant lines, with each coolant line circulating to each radiator to improve the vehicle's range and curb weight.

[0049] like Figure 1 As shown, the cooling system for an electric vehicle is configured to include a first cooling circuit 100 for cooling PE components, a second cooling circuit 200 for cooling and heating battery components, and an air conditioning circuit 300 for cooling and heating the interior of the vehicle.

[0050] The front wheel motor 101 and rear wheel motor 102, which provide driving force for the vehicle, the on-board charger (OBC) / low-voltage DC-DC converter (LDC) 103, the front wheel inverter 104, the rear wheel inverter 105, the electric water pump 110, the coolant storage tank 106, the high-temperature radiator (HTR) 107, etc., are coupled to the first cooling circuit 100 so that the coolant can circulate therein. The HTR 107 can also be referred to as the first radiator.

[0051] Furthermore, a first bypass line 108 is coupled between the rear of the storage tank 106 and the HTR 107. A first three-way valve 109 for selectively allowing coolant flow is installed at the point where the first bypass line 108 and the coolant line come into contact with each other.

[0052] A cooler 201 for cooling the coolant, a coolant heater 202 for heating the coolant, a battery 203, electric water pumps 204 and 211, a storage tank 205, a cryogenic radiator (LTR) 206, etc., are coupled to a second cooling circuit 200, allowing the coolant to circulate within it. The LTR 206 may also be referred to as a second radiator.

[0053] Furthermore, the second bypass line 208 and the third bypass line 209 are coupled via pipe 207 between the coolant line coupled between the outlet of LTR 206 and the battery 203, and between the inlet of LTR 206 and the cooler 201. A second three-way valve 210 for selectively allowing coolant flow is installed at the point where the third bypass line 209 and the coolant line come into contact with each other.

[0054] For reference, the air conditioning circuit 300 may be an air conditioning device configured to include a compressor 301 for compressing a refrigerant, an external condenser 302 for liquefying the refrigerant compressed by the compressor 301 by condensing the refrigerant, an expansion valve 303 for rapidly expanding the refrigerant condensed and liquefied by the external condenser 302, and an evaporator 304 for evaporating the refrigerant expanded by the expansion valve 303 and simultaneously using the latent heat of vaporization of the refrigerant to cool the air ventilated to the vehicle interior, etc.

[0055] In addition, a water-cooled heat exchanger 305 for heat exchange between the coolant and refrigerant is located between the coolant lines of the first cooling circuit 100, the coolant lines of the second cooling circuit 200, and the refrigerant lines of the air conditioning circuit 300.

[0056] The following describes the operating mode of the cooling system for electric vehicles constructed as described above.

[0057] Heat pump mode and battery heating mode

[0058] Figure 2 The flow state of the coolant is shown when the cooling system used in electric vehicles is in heat pump mode and battery heating mode.

[0059] The heat pump mode refers to the mode of recovering waste heat from the PE component 212, which includes the front wheel motor 101, the rear wheel motor 102, the OBC / LDC 103, the front wheel inverter 104, and the rear wheel inverter 105.

[0060] In heat pump mode, the cooling system is separated from HTR 107, preventing coolant from flowing to HTR 107, such as from... Figure 2 As can be seen, the cooling effect of HTR 107 in the components of the first cooling circuit 100 is unnecessary.

[0061] Therefore, the first three-way valve 109, installed at the point where the first bypass line 108 and the coolant line come into contact with each other, is closed relative to the HTR 107, while opening toward the first bypass line 108.

[0062] Therefore, the coolant in the storage tank 106 recovers waste heat and simultaneously circulates through the drive of the electric water pump 110. In this circulation, the coolant passes sequentially through the front wheel motor 101, the rear wheel motor 102, the OBC / LDC 103, the front wheel inverter 104, and the rear wheel inverter 105, which constitute the PE component.

[0063] The battery heating mode refers to a mode in which, if it is desired that the battery 203 be heated, the coolant heater 202 is operated to heat the coolant, and the battery 203 is heated by the heated coolant.

[0064] In battery warming mode, the cooling system is in a state of LTR 206 separation, preventing coolant from flowing to LTR 206, such as from... Figure 2 As can be seen, the cooling effect of LTR 206 in the components of the second cooling circuit 200 is unnecessary.

[0065] Therefore, the second three-way valve 210, installed at the point where the third bypass line 209 and the coolant line come into contact with each other, is closed relative to the LTR 206, while opening toward the third bypass line 209.

[0066] Therefore, the coolant heated by the coolant heater 202 circulates, wherein the coolant passes through the second three-way valve 210 and the battery 203 via the third bypass line 209, thereby raising the temperature of the battery. At this time, the coolant heated by the coolant heater 202 circulates, wherein the coolant passes through the battery 203 driven by the electric water pump 204.

[0067] Integrated cooling mode

[0068] Figure 3 The flow state of the coolant is shown when the cooling system used in electric vehicles is in integrated cooling mode.

[0069] The integrated cooling mode refers to a mode in which the first cooling circuit 100 uses HTR 107 to cool the PE components including the front wheel motor 101, rear wheel motor 102, OBC / LDC 103, front wheel inverter 104, and rear wheel inverter 105, and the second cooling circuit 200 uses LTR 206 to cool the battery 203.

[0070] In integrated cooling mode, the cooling system becomes integrated with HTR 107, causing coolant to flow towards HTR107, such as... Figure 3 As shown, because the cooling effect of HTR 107 in the components of the first cooling circuit 100 is desired, and the integrated LTR 206 is made to allow coolant to flow to LTR 206, as... Figure 3 As shown, this is because of the cooling effect of LTR206 in the components of the second cooling circuit.

[0071] Therefore, the first three-way valve 109 opens toward HTR 107 and closes relative to the first bypass line 108. The second three-way valve 210 opens toward LTR 206 and closes relative to the third bypass line 209.

[0072] Therefore, in the first cooling circuit 100, the coolant performs heat exchange to cool the PE components, including the front wheel motor 101, rear wheel motor 102, OBC / LDC 103, front wheel inverter 104, and rear wheel inverter 105, while being driven sequentially through the PE components by the electric water pump 110. The coolant, whose temperature has increased due to the heat exchange, is cooled again by the HTR 107 and then circulates through the PE components.

[0073] Furthermore, in the second cooling circuit 200, by driving at least one of the electric water pumps 204 and 211, the coolant performs heat exchange for cooling the battery 203 while passing through it. The coolant, whose temperature has increased due to the heat exchange, is cooled again by the LTR 206 and then circulated back to the battery 203.

[0074] Separate cooling mode

[0075] Figure 4 The diagram shows the flow state of the coolant when the cooling system for an electric vehicle is in separate cooling mode.

[0076] The separate cooling mode refers to a mode in which the first cooling circuit 100 uses HTR 107 to cool PE components, including the front wheel motor 101, rear wheel motor 102, OBC / LDC 103, front wheel inverter 104, and rear wheel inverter 105, as in the integrated cooling mode, while the second cooling circuit 200 uses cooler 201 to cool battery 203 by cooling the coolant through heat exchange with the refrigerant of air conditioning circuit 300, without using LTR 206.

[0077] In the separate cooling mode, the cooling system becomes integrated with HTR 107, causing coolant to flow to HTR 107, such as from... Figure 4 As can be seen, the cooling effect of HTR 107 in the components of the first cooling circuit 100 is expected. Instead, the cooling system becomes isolated from LTR 206, preventing coolant from flowing to LTR 206, as from... Figure 4 As can be seen, the cooling effect of LTR 206 in the components of the second cooling circuit 200 is unnecessary.

[0078] Therefore, the first three-way valve 109 opens toward HTR 107 and closes relative to the first bypass line 108. The second three-way valve 210 closes relative to LTR 206 and opens toward the third bypass line 209.

[0079] Therefore, in the first cooling circuit 100, the coolant performs heat exchange to cool the PE components, including the front wheel motor 101, rear wheel motor 102, OBC / LDC 103, front wheel inverter 104, and rear wheel inverter 105, while being driven sequentially through the PE components by the electric water pump 110. The coolant, whose temperature has increased due to the heat exchange, is cooled again by the HTR 107 and then circulates through the PE components.

[0080] Conversely, in the second cooling circuit 200, the coolant cooled by the cooling action of the cooler 201 cools the battery while performing a circulating flow, wherein the coolant passes through the second three-way valve 210 and the battery 203 via the third bypass line 209.

[0081] However, in this configuration of the cooling system for electric vehicles, the first cooling circuit 100 for cooling the PE components and the second cooling circuit 200 for cooling the battery require numerous components, such as two or more three-way valves 109 and 210, two or more bypass lines 108, 208 and 209, and three or more T-pipes 207, so that each of the first and second cooling circuits performs a heat pump mode, a battery heating mode, an integrated cooling mode, and a separate cooling mode. Therefore, there are significant issues of increased cost and weight, as well as increased packaging complexity. Furthermore, there is a problem that the coolant does not flow in its designated flow direction in the T-pipes or similar connecting coolant lines, but instead flows to another location.

[0082] Therefore, one aspect of the present invention provides a dual six-way valve that can replace two three-way valves, T-pipes, and bypass lines used for coolant flow control in existing cooling systems.

[0083] The dual six-way valve is applied to the aforementioned cooling system and is configured to control the flow rate of coolant used to cool the target parts of the vehicle to be cooled, and also solves the problem.

[0084] Figures 5 to 8 Some forms of double six-way valves according to this disclosure are shown.

[0085] like Figures 5 to 8 As shown, the dual six-way valve is configured to include an upper housing 10, a lower housing 20, an upper hub 30, a lower hub 40, a drive device 50, etc.

[0086] The upper housing 10 can be formed as a cylinder with a closed top and an open bottom. A plurality of threaded joints 11, 12, 13, 14, 15 and 16 can be provided on the outer circumferential surface of the upper housing 10. Specifically, the first to sixth threaded joints 11, 12, 13, 14, 15 and 16 can be provided on the outer circumferential surface of the upper housing 10.

[0087] Multiple threaded joints 11, 12, 13, 14, 15 and 16 may be formed on the outer circumferential surface of the upper housing 10 in a radially protruding manner. In this case, the multiple threaded joints 11, 12, 13, 14, 15 and 16 may be arranged at equal intervals in the circumferential direction of the upper housing 10.

[0088] Each of the threaded fittings 11, 12, 13, 14, 15, and 16 can be formed as a pipeline through which coolant can flow and can be coupled to and supported by the coolant pipeline of the cooling system. In this case, the threaded fittings 11, 12, 13, 14, 15, and 16 can be coupled to the coolant pipeline at different locations within the cooling system.

[0089] Specifically, the first threaded connector 11 can be coupled to the inlet-side coolant line ① of the first radiator 107 in the cooling system components. The second threaded connector 12 can be coupled to the outlet-side coolant line ② of the first radiator 107 in the cooling system components. The third threaded connector 13 can be coupled to the inlet-side coolant line ③ of the PE component 212 in the cooling system components. The fourth threaded connector 14 can be coupled to the outlet-side coolant line ④ of the PE component 212 in the cooling system components. In addition, the fifth threaded connector 15 can be coupled to the first inlet-side coolant line ⑤ of the water-cooled heat exchanger 305 in the cooling system components. The sixth threaded connector 16 can be coupled to the first outlet-side coolant line ⑥ of the water-cooled heat exchanger 305 in the cooling system components. The first inlet-side coolant line ⑤ and the first outlet-side coolant line ⑥ of the water-cooled heat exchanger 305 are coolant lines coupled to the first radiator 107.

[0090] The lower housing 20 can be formed as a cylinder with a top opening and a bottom closure. The lower housing 20 can be stacked below the upper housing 10 and is coaxially arranged with the upper housing 10.

[0091] Multiple threaded joints 21, 22, 23, 24, 25 and 26 are disposed on the outer circumferential surface of the lower housing 20. Specifically, the first to sixth threaded joints 21, 22, 23, 24, 25 and 26 may be disposed on the outer circumferential surface of the lower housing 20.

[0092] Multiple threaded joints 21, 22, 23, 24, 25, and 26 may be formed on the outer circumferential surface of the lower housing 20 in a radially protruding manner. In this case, the multiple threaded joints 21, 22, 23, 24, 25, and 26 may be arranged at equal intervals in the circumferential direction of the lower housing 20.

[0093] Each of the threaded fittings 21, 22, 23, 24, 25, and 26 can be configured as a conduit through which coolant can flow and can be coupled to and supported by the coolant conduit of the cooling system. In this case, the threaded fittings 21, 22, 23, 24, 25, and 26 can be coupled to the coolant conduit at different locations within the cooling system.

[0094] Specifically, the first threaded connector 21 can be coupled to the inlet-side coolant line ⑦ of the second radiator 206 in the cooling system components. The second threaded connector 22 can be coupled to the outlet-side coolant line ⑧ of the second radiator 206 in the cooling system components. The third threaded connector 23 can be coupled to the inlet-side coolant line ⑨ of the battery section 213 in the cooling system components. The fourth threaded connector 24 can be coupled to the outlet-side coolant line ⑩ of the battery section 213 in the cooling system components. Furthermore, the fifth threaded connector 25 can be coupled to the second inlet-side coolant line of the water-cooled heat exchanger 305 in the cooling system components. The sixth threaded connector 26 can be coupled to the second outlet side coolant line of the water-cooled heat exchanger 305 in the cooling system components. The second inlet side coolant line of the water-cooled heat exchanger 305 Second outlet side coolant pipeline It is a coolant line coupled to the second radiator 206.

[0095] In this case, battery section 213 refers to battery 203, coolant heater 202 and cooler 201 in the components of the cooling system.

[0096] The upper hub 30 can be rotatably mounted within the upper housing 10. In this case, the outer circumferential surface of the upper hub 30 contacts the inner circumferential surface of the upper housing 10. Specifically, the upper hub 30 can be formed as a cylinder that can rotate within the upper housing 10.

[0097] Multiple upper flow channels 31, 32, and 33 are independently arranged within the upper hub 30. Specifically, three upper flow channels 31, 32, and 33 may be arranged within the upper hub 30. More specifically, a first upper flow channel 31, a second upper flow channel 32, and a third upper flow channel 33 may be arranged within the upper hub 30.

[0098] Each of the upper flow channels 31, 32, and 33 has a first end and a second end for coolant entry and exit. The first end and the second end are disposed on the outer circumferential surface of the upper hub 30. For example, coolant introduced into the upper flow channels 31, 32, and 33 through the first end of the upper flow channels 31, 32, and 33 passes through the upper hub 30 via the upper flow channels 31, 32, and 33, and is discharged through the upper flow channels 31, 32, and 33 via the second end of the upper flow channels 31, 32, and 33.

[0099] More specifically, each of the upper flow channels 31, 32, and 33 is disposed in the upper hub 30, allowing coolant to flow within the upper hub 30. In this case, the first and second ends of each of the upper flow channels 31, 32, and 33 are disposed at given intervals along the circumferential direction of the upper hub 30 on the outer circumferential surface of the upper hub 30.

[0100] Each of the upper flow channels 31, 32, and 33 is coupled to two threaded connectors selected from a plurality of threaded connectors 11, 12, 13, 14, 15, and 16 in such a manner that coolant flows into each flow channel. The position of each of the upper flow channels 31, 32, and 33 within the upper housing 10 varies depending on the rotation angle of the upper hub 30. Therefore, each of the upper flow channels 31, 32, and 33 is coupled to two threaded connectors selected from a plurality of threaded connectors 11, 12, 13, 14, 15, and 16 according to the rotation angle of the upper hub 30.

[0101] In this configuration, each of the upper flow channels 31, 32, and 33 can connect two upper threaded joints selected according to the rotation angle of the upper hub 30, allowing coolant to flow through the two upper threaded joints.

[0102] Specifically, when the rotation angle of the upper hub 30 is 0°, the first upper flow channel 31 can be coupled to the second upper threaded connector 12 and the third upper threaded connector 13 in such a way that coolant can flow through the second upper threaded connector 12 and the third upper threaded connector 13; the second upper flow channel 32 can be coupled to the fourth upper threaded connector 14 and the fifth upper threaded connector 15 in such a way that coolant can flow through the fourth upper threaded connector 14 and the fifth upper threaded connector 15; and the third upper flow channel 33 can be coupled to the first upper threaded connector 11 and the sixth upper threaded connector 16 in such a way that coolant can flow through the first upper threaded connector 11 and the sixth upper threaded connector 16.

[0103] In this case, such as Figure 7 and Figure 10As shown, the first end of the first upper flow channel 31 can be coupled to the second upper threaded connector 12, and the second end of the first upper flow channel 31 can be coupled to the third upper threaded connector 13. The first end of the second upper flow channel 32 can be coupled to the fourth upper threaded connector 14, and the second end of the second upper flow channel 32 can be coupled to the fifth upper threaded connector 15. The first end of the third upper flow channel 33 can be coupled to the sixth upper threaded connector 16, and the second end of the third upper flow channel 33 can be coupled to the first upper threaded connector 11.

[0104] The first and second ends of each of the upper flow channels 31, 32 and 33 are arranged at a predetermined interval in the circumferential direction of the upper hub 30. The first ends of the first upper flow channel 31, the second upper flow channel 32 and the third upper flow channel 33 are also arranged at a predetermined interval from each other.

[0105] In this case, the rotation angle of the upper hub 30 is defined as 0°, which is the reference state of the upper hub 30. The upper hub 30 can rotate a predetermined angle relative to the reference state. For example, the upper hub 30 can rotate 60° relative to the reference state in a first direction. The first direction can be counterclockwise.

[0106] The lower hub 40 can be rotatably mounted within the lower housing 20. In this case, the outer circumferential surface of the lower hub 40 contacts the inner circumferential surface of the lower housing 20. Furthermore, the lower hub 40 is stacked below the upper hub 30 and is coaxially arranged with the upper hub 30. The lower hub 40 can be formed as a cylinder that can rotate within the lower housing 20.

[0107] Multiple lower flow channels 41, 42, and 43 are independently arranged within the lower hub 40. Specifically, three lower flow channels 41, 42, and 43 can be arranged within the lower hub 40. That is, the first lower flow channel 41, the second lower flow channel 42, and the third lower flow channel 43 can be arranged within the lower hub 40.

[0108] Each of the lower flow channels 41, 42, and 43 has a first end and a second end for coolant inlet and outlet. The first end and the second end are disposed at a given interval on the outer circumferential surface of the lower hub 40 in the circumferential direction. Each of the lower flow channels 41, 42, and 43 is disposed in the lower hub 40 and allows coolant to flow within the lower hub 40.

[0109] Each of the lower flow channels 41, 42, and 43 is coupled to two lower threaded connectors selected from a plurality of lower threaded connectors 21, 22, 23, 24, 25, and 26 in such a manner that coolant can flow through two lower threaded connectors. The position of each of the lower flow channels 41, 42, and 43 within the lower housing 20 varies depending on the rotation angle of the lower hub 40. Therefore, each of the lower flow channels 41, 42, and 43 is coupled to two lower threaded connectors selected from a plurality of lower threaded connectors 21, 22, 23, 24, 25, and 26 according to the rotation angle of the lower hub 40.

[0110] In this configuration, each of the lower flow channels 41, 42, and 43 can connect two lower threaded joints selected according to the rotation angle of the lower hub 40, allowing coolant to flow through the two lower threaded joints.

[0111] Specifically, when the rotation angle of the lower hub 40 is 0°, the first lower flow channel 41 can be coupled to the second lower threaded connector 22 and the third lower threaded connector 23 in such a way that coolant can flow through the second lower threaded connector 22 and the third lower threaded connector 23. The second lower flow channel 42 can be coupled to the fourth lower threaded connector 24 and the fifth lower threaded connector 25 in such a way that coolant can flow through the sixth lower threaded connector 26 and the first lower threaded connector 21.

[0112] In this case, such as Figure 8 and Figure 13 As shown, the first end of the first lower flow channel 41 can be coupled to the second lower threaded connector 22, and the second end of the first lower flow channel 41 can be coupled to the third lower threaded connector 23. The first end of the second lower flow channel 42 can be coupled to the fourth lower threaded connector 24, and the second end of the second lower flow channel 42 can be coupled to the fifth lower threaded connector 25. The first end of the third lower flow channel 43 can be coupled to the sixth lower threaded connector 26, and the second end of the third lower flow channel 43 can be coupled to the first lower threaded connector 21.

[0113] The first and second ends of each of the lower flow channels 41, 42 and 43 are arranged at predetermined intervals in the circumferential direction of the lower hub 40. The first ends of the first lower flow channel 41, the second lower flow channel 42 and the third lower flow channel 43 are also arranged at predetermined intervals from each other.

[0114] In this case, the rotation angle of the lower hub 40 is 0°, which is defined as the reference state of the lower hub 40. The lower hub 40 can rotate a predetermined angle relative to the reference state. For example, the lower hub 40 can rotate 60° relative to the reference state in a first direction. The first direction can be counterclockwise. The direction opposite to the first direction can be a second direction. The second direction can be clockwise.

[0115] Furthermore, multiple upper flow channels 34, 35, 36, and 37 can be independently arranged within the upper hub 30. Specifically, four upper flow channels 34, 35, 36, and 37 can be arranged within the upper hub 30. More specifically, the first upper flow channel 34, the second upper flow channel 35, the third upper flow channel 36, and the fourth upper flow channel 37 can be arranged within the upper hub 30.

[0116] Each of the first to fourth upper flow channels 34, 35, 36, and 37 can be formed to extend upward from the outer circumferential surface of the upper hub 30 to the bottom of the upper hub 30. In this case, the tops of the first to fourth upper flow channels 34, 35, 36, and 37 can be disposed at given intervals on the outer circumferential surface of the upper hub 30. The top of each of the first to fourth upper flow channels 34, 35, 36, and 37 can be coupled to an upper threaded connector selected according to the rotation angle of the upper hub 30.

[0117] Furthermore, the bottom of each of the first to fourth upper flow channels 34, 35, 36 and 37 can contact the top of the lower hub 40 stacked below the upper hub 30.

[0118] Multiple lower flow channels 44, 45, 46, and 47 can be independently arranged within the lower hub 40. Specifically, four lower flow channels 44, 45, 46, and 47 can be arranged within the lower hub 40. More specifically, the first lower flow channel 44, the second lower flow channel 45, the third lower flow channel 46, and the fourth lower flow channel 47 can be arranged within the lower hub 40.

[0119] Each of the first to fourth lower flow channels 44, 45, 46, and 47 can be formed to extend from the outer circumferential surface of the lower hub 40 to the top of the lower hub 40. In this case, the bottoms of the first to fourth lower flow channels 44, 45, 46, and 47 can be provided at given intervals on the outer circumferential surface of the lower hub 40. The bottom of each of the first to fourth lower flow channels 44, 45, 46, and 47 can be coupled to a threaded connector selected according to the rotation angle of the lower hub 40.

[0120] Furthermore, the top of each of the first to fourth lower flow channels 44, 45, 46 and 47 can contact the top of the upper hub 30 stacked on the lower hub 40.

[0121] The bottom of the first upper flow channel 34 and the top of the first lower flow channel 44 can be selectively coupled based on the rotation angle of the upper hub 30 and the lower hub 40.

[0122] Specifically, such as Figure 16 As shown, if the upper hub 30 rotates at a predetermined first angle and the lower hub 40 rotates at a predetermined second angle, the bottom of the first upper flow channel 34 and the top of the first lower flow channel 44 can be coupled in such a way that coolant can flow through the first upper flow channel 34 and the first lower flow channel 44. Furthermore, at this time, the top of the first upper flow channel 34 is coupled to the second upper threaded connector 12, and the bottom of the first lower flow channel 44 is coupled to the first lower threaded connector 21. For example, the first angle can be an angle in which the upper hub 30 rotates 345° in a first direction. The second angle can be an angle in which the lower hub 40 rotates 195° in a second direction.

[0123] When the bottom of the first upper flow channel 34 and the top of the first lower flow channel 44 are coupled, the bottom of the second upper flow channel 35 and the top of the second lower flow channel 45 are also coupled.

[0124] Specifically, such as Figures 16 to 18 As shown, if the upper hub 30 rotates at a first angle and the lower hub 40 rotates at a second angle, the bottom of the second upper flow channel 35 and the top of the second lower flow channel 45 are coupled in such a way that coolant can flow through the second upper flow channel 35 and the second lower flow channel 45. The top of the second upper flow channel 35 is coupled to the third upper threaded connector 13, and the bottom of the second lower flow channel 45 is coupled to the second lower threaded connector 22.

[0125] Furthermore, the bottom of the third upper flow channel 36 and the top of the third lower flow channel 46 can be selectively coupled according to the rotation angle of the upper hub 30 and the lower hub 40.

[0126] Specifically, such as Figure 19 As shown, if the upper hub 30 rotates at a predetermined third angle and the lower hub 40 rotates at a predetermined fourth angle, the bottom of the third upper flow channel 36 and the top of the third lower flow channel 46 can be coupled in such a way that coolant can flow through the third upper flow channel 36 and the third lower flow channel 46. Furthermore, at this time, the top of the third upper flow channel 36 is coupled to the second upper threaded connector 12, and the bottom of the third lower flow channel 46 is coupled to the first lower threaded connector 21. For example, the third angle can be an angle where the upper hub 30 rotates 45° in the first direction. The fourth angle can be an angle where the lower hub 40 rotates 15° in the second direction.

[0127] When the bottom of the third upper half flow channel 36 and the top of the third lower half flow channel 46 are coupled, the bottom of the fourth upper half flow channel 37 and the top of the fourth lower half flow channel 47 are also coupled.

[0128] Specifically, such as Figures 19 to 21 As shown, if the upper hub 30 rotates at a third angle and the lower hub 40 rotates at a fourth angle, the bottom of the fourth upper flow channel 37 and the top of the fourth lower flow channel 47 are coupled in such a way that coolant can flow through the fourth upper flow channel 37 and the fourth lower flow channel 47. The top of the fourth upper flow channel 37 is coupled to the first upper threaded connector 11, and the bottom of the fourth lower flow channel 47 is coupled to the sixth lower threaded connector 26.

[0129] like Figure 5 and Figure 6 As shown, the drive device 50 is coupled to the rotation center of the upper hub 30 and the lower hub 40. The drive device 50 is configured to rotate the upper hub 30 and the lower hub 40.

[0130] The drive device 50 is configured to selectively rotate one of the upper hub 30 and the lower hub 40 using a motor 51. For this purpose, the drive device 50 is configured to rotate the upper hub 30 using the motor 51 in a first direction, or to rotate the lower hub 40 using the motor 51 in a second direction. The motor 51 may be a stepper motor capable of rotating forward and backward.

[0131] Reference Figures 5 to 8 The motor 51 is mounted on the top of the upper housing 10. The shaft 52 of the motor 51 is configured to pass through the upper center hole 38 of the upper hub 30 provided in the upper housing 10 and through the lower center hole 48 of the lower hub 40 provided in the lower housing 20.

[0132] In this configuration, the shaft 52 of the motor 51 is radially positioned at a given distance from the upper center hole 38 and the lower center hole 48. Therefore, although the shaft 52 rotates, the rotational force of the motor 51 is not directly transmitted to the upper hub 30 and the lower hub 40.

[0133] In order to selectively transmit the rotational force when the shaft 52 of the motor 51 rotates to the upper hub 30 or the lower hub 40, the drive device 50 may be configured to include a first ratchet 53, a first spring clip 54, a second ratchet 55 and a second spring clip 56.

[0134] The first ratchet 53 has a structure in which a first latching pawl 53a and a first inclined surface 53b are repeatedly formed along the circumferential direction on its outer circumferential surface. The first ratchet 53 is disposed adjacent to the inner circumferential surface of the upper hub 30 and is rotatably coupled to the shaft 52 of the motor 51. In this case, the inner circumferential surface of the upper hub 30 surrounds the upper central hole 38.

[0135] The first spring clip 54 is formed in a compressible and deformable U-shape. One end of the first spring clip 54 (i.e., the first end) is mounted on the inner circumferential surface of the upper hub 30, and the other end (i.e., the second end) is a free end that can be compressed and deformed. The other end of the first spring clip 54 is locked to the first latch pawl 53a of the first ratchet 53 and is located in the first inclined surface 53b.

[0136] The second ratchet 55 has a structure in which a second latching pawl 55a and a second inclined surface 55b are repeatedly formed along the circumferential direction on its outer circumferential surface. The second ratchet 55 is disposed adjacent to the inner circumferential surface of the lower hub 40 and is also rotatably coupled to the shaft 52 of the motor 51. In this case, the inner circumferential surface of the lower hub 40 surrounds the lower central hole 48.

[0137] The second spring clip 56 is formed in a compressible and deformable U-shape. One end of the second spring clip 56 (i.e., the first end) is mounted on the inner circumferential surface of the lower hub 40, and its other end (i.e., the second end) is a free end that can be compressed and deformed. The other end of the second spring clip 56 is locked to the second latch pawl 55a of the second ratchet 55 and is located in the second inclined surface 55b.

[0138] In this configuration, when the motor 51 rotates in the first direction, the first spring clip 54 is locked onto the first latch pawl 53a. When the motor 51 rotates in the second direction, the second spring clip 56 is locked onto the second locking pawl 55a. The first and second directions are opposite directions.

[0139] Therefore, when the shaft 52 rotates in the first direction driven by the motor 51, and the first ratchet 53 rotates in the first direction simultaneously, the second end of the first spring clip 54 locks onto the first latch pawl 53a of the first ratchet 53, and the first ratchet 53 pushes the first spring clip 54 to rotate. Consequently, the upper hub 30 coupled to the first end of the first spring clip 54 also rotates in the first direction.

[0140] In one configuration, when the shaft 52 rotates in the first direction driven by the motor 51, and the second ratchet 55 rotates in the first direction simultaneously, the second end of the second spring clip 56 repeatedly performs the operation of climbing over the second ramp 55b of the second ratchet 55. Therefore, the lower hub 40 remains stationary because the rotational force of the motor 51 is not transmitted to the lower hub 40.

[0141] In another configuration, when the shaft 52 rotates in the second direction driven by the motor 51, and the first ratchet 53 rotates in the second direction simultaneously, the second end of the first spring clip 54 repeatedly performs the operation of climbing over the first ramp 53b of the first ratchet 53. Therefore, the upper hub 30 remains stationary because the rotational force of the motor 51 is not transmitted to the upper hub 30.

[0142] Furthermore, when shaft 52 rotates in the second direction simultaneously with the second ratchet 55 rotating in the second direction, the second end of the second spring clip 56 is locked onto the second latch pawl 55a of the second ratchet 55, and the second ratchet 55 pushes the second spring clip 56 to rotate. Therefore, the lower hub 40 coupled to the first end of the second spring clip 56 also rotates in the second direction.

[0143] As described above, the drive device 50 can use only one motor 51 to rotate only the upper hub 30 at a given angle in a first direction, or only the lower hub 40 at a given angle in a second direction.

[0144] Figures 10 to 21 This is a diagram illustrating the flow state of the coolant in a cooling system based on the operating state of the dual six-way valves. Specifically, Figures 10 to 12 This is a diagram illustrating the coolant flow in a component of a double six-way valve according to the rotation angle of the upper hub in some forms of this disclosure. Figures 13 to 15 This is a diagram illustrating the flow of coolant in a component of a double six-way valve according to the rotation angle of the lower hub, in another form of the present disclosure. Figures 16 to 21 This is a diagram illustrating the operating states of the upper and lower hubs of a component of a dual six-way valve according to some forms of this disclosure, which are used to match the upper and lower flow channels, and the states in which the flow of coolant is controlled according to the operating states.

[0145] like Figure 10 As shown, when the rotation angle of the upper hub 30 is 0°, that is, when the operating state of the upper hub 30 is the reference state, the first upper flow channel 31 is coupled to the second upper threaded connector 12 and the third upper threaded connector 13 in a manner that allows coolant to flow through the first upper flow channel 31. The second upper flow channel 32 is coupled to the fourth upper threaded connector 14 and the fifth upper threaded connector 15 in a manner that allows coolant to flow through the second upper flow channel 32. The third upper flow channel 33 is coupled to the first upper threaded connector 11 and the sixth upper threaded connector 16 in a manner that allows coolant to flow through the third upper flow channel 33.

[0146] Therefore, the coolant line ② at the outlet side of the first radiator 107 coupled to the second threaded connector 12 and the coolant line ③ at the inlet side of the PE component 212 coupled to the third threaded connector 13 are connected to each other through the first upper flow channel 31 in such a way that coolant can flow through the first upper flow channel 31. The coolant line ④ at the outlet side of the PE component 212 coupled to the fourth threaded connector 14 and the coolant line ⑤ at the first inlet side of the water-cooled heat exchanger 305 coupled to the fifth threaded connector 15 are connected to each other through the second upper flow channel 32 in such a way that coolant can flow through the second upper flow channel 32. The coolant line ① at the inlet side of the first radiator 107 coupled to the first threaded connector 11 and the coolant line ⑥ at the first outlet side of the water-cooled heat exchanger 305 coupled to the sixth threaded connector 16 are connected to each other through the third upper flow channel 33 in such a way that coolant can flow through the third upper flow channel 33.

[0147] Therefore, the PE component 212 is coupled to the first radiator 107 and the water-cooled heat exchanger 305 in such a way that coolant can flow through the first radiator 107 and the water-cooled heat exchanger 305. The PE component 212 becomes a state that can be cooled by the coolant that passes through the first radiator 107.

[0148] Therefore, if the upper hub 30 remains in the reference state, an integrated cooling mode can be performed on the PE component 212 of the existing cooling system (i.e., a cooling system without the application of the dual six-way valve of this disclosure).

[0149] like Figure 11 As shown, when the upper hub 30 rotates 60° in a first direction relative to the reference state, the first upper flow channel 31 becomes coupled to the fourth upper threaded connector 14 and the fifth upper threaded connector 15 in a manner that allows coolant to flow through it. The second upper flow channel 32 becomes coupled to the third upper threaded connector 13 and the sixth upper threaded connector 16 in a manner that allows coolant to flow through it. The third upper flow channel 33 becomes coupled to the first upper threaded connector 11 and the second upper threaded connector 12 in a manner that allows coolant to flow through it.

[0150] Therefore, the coolant line ④ on the outlet side of the PE component 212 coupled to the fourth threaded connector 14 and the coolant line ⑤ on the first inlet side of the water-cooled heat exchanger 305 coupled to the fifth threaded connector 15 are connected to each other through the first upper flow channel 31 in such a way that coolant can flow through the first upper flow channel 31. The coolant line ③ on the inlet side of the PE component 212 coupled to the third threaded connector 13 and the coolant line ⑥ on the first outlet side of the water-cooled heat exchanger 305 coupled to the sixth threaded connector 16 are connected to each other through the second upper flow channel 32 in such a way that coolant can flow through the second upper flow channel 32. The coolant line ① on the inlet side of the first radiator 107 coupled to the first threaded connector 11 and the coolant line ② on the outlet side of the first radiator 107 coupled to the second threaded connector 12 are connected to each other through the third upper flow channel 33 in such a way that coolant can flow through the third upper flow channel 33.

[0151] Furthermore, accordingly, the PE component 212 becomes separated from the first radiator 107 and coupled to the water-cooled heat exchanger 305. The PE component 212 becomes unable to be cooled by the first radiator 107.

[0152] In this case, the water-cooled heat exchanger 305 can recover waste heat from the PE component 212 or heat the PE component 212 according to its operating mode.

[0153] Specifically, when the air conditioning circuit 300 operates in battery heating mode, if the water-cooled heat exchanger 305 is used as an evaporator, the low-temperature, low-pressure refrigerant supplied by the air conditioning circuit 300 absorbs heat from the coolant as it passes through the water-cooled heat exchanger 305. At this time, the coolant, having had its temperature lowered by the refrigerant, can recover waste heat from the PE component 212. That is, when the water-cooled heat exchanger 305 operates in evaporator mode, the water-cooled heat exchanger 305 can recover waste heat from the PE component 212 through heat exchange operations.

[0154] Furthermore, when the air conditioning circuit 300 operates in cooling mode, if the water-cooled heat exchanger 305 is used as a condenser, the high-temperature, high-pressure refrigerant supplied by the air conditioning circuit 300 transfers heat to the coolant as it passes through the water-cooled heat exchanger 305. At this time, the coolant heated by the refrigerant can heat the PE component 212. That is, when the water-cooled heat exchanger 305 operates in condenser mode, coolant heated by the refrigerant supplied by the air conditioning circuit 300 can be supplied to the PE component 212, thereby heating the PE component 212.

[0155] If the upper hub 30 rotates 60° in the first direction, the existing cooling system can operate in heat pump mode when the water-cooled heat exchanger 305 is running in evaporator mode.

[0156] like Figure 12 As shown, if the upper hub 30 rotates 180° in the first direction relative to the reference state, the first upper flow channel 31 becomes coupled to the first upper threaded connector 11 and the fifth upper threaded connector 15 in such a way that coolant can flow through the first upper flow channel 31, the second upper flow channel 32 becomes coupled to the second upper threaded connector 12 and the sixth upper threaded connector 16 in such a way that coolant can flow through the second upper flow channel 32, and the third upper flow channel 33 becomes coupled to the third upper threaded connector 13 and the fourth upper threaded connector 14 in such a way that coolant can flow through the third upper flow channel 33.

[0157] Therefore, the inlet-side coolant line ① of the first radiator 107 coupled to the first threaded connector 11 and the first inlet-side coolant line ⑤ of the water-cooled heat exchanger 305 coupled to the fifth threaded connector 15 are connected to each other through the first upper flow channel 31 in such a way that coolant can flow through the first upper flow channel 31. The outlet-side coolant line ② of the first radiator 107 coupled to the second threaded connector 12 and the first outlet-side coolant line ⑥ of the water-cooled heat exchanger 305 coupled to the sixth threaded connector 16 are connected to each other through the second upper flow channel 32 in such a way that coolant can flow through the second upper flow channel 32. The inlet-side coolant line ③ of the PE component 212 coupled to the third threaded connector 13 and the outlet-side coolant line ④ of the PE component 212 coupled to the fourth threaded connector 14 are connected to each other through the third upper flow channel 33 in such a way that coolant can flow through the third upper flow channel 33.

[0158] Furthermore, the PE component 212 is thus separated from the first radiator 107 and the water-cooled heat exchanger 305. Therefore, when the temperature of the coolant is raised by the heat generated within the PE component 212, the PE component 212 will be heated by the increased coolant temperature. The water-cooled heat exchanger 305 can be cooled solely by the coolant cooled by the first radiator 107.

[0159] In this configuration, the first radiator 107 and the water-cooled heat exchanger 305 are connected to each other in such a way that coolant can flow through them. When operating in evaporator mode, the water-cooled heat exchanger 305 recovers waste heat from the outside air through the coolant flowing through the first radiator 107. Specifically, when the air conditioning circuit 300 operates in heating mode, if the water-cooled heat exchanger 305 is used as an evaporator, the low-temperature, low-pressure refrigerant supplied by the air conditioning circuit 300 absorbs heat from the coolant as it passes through the water-cooled heat exchanger 305. At this time, the coolant, having had its temperature lowered by the refrigerant, recovers waste heat from the outside air passing through the first radiator 107.

[0160] As described above, if the upper hub 30 rotates 180° in the first direction, it can perform a mode that cannot be performed in the existing cooling system.

[0161] like Figure 13 As shown, when the rotation angle of the lower hub 40 is 0°, that is, if the operating state of the lower hub 40 is the reference state, the first lower flow channel 41 becomes coupled to the second lower threaded connector 22 and the third lower threaded connector 23 in such a way that coolant can flow through the first lower flow channel 41; the second lower flow channel 42 becomes coupled to the fourth lower threaded connector 24 and the fifth lower threaded connector 25 in such a way that coolant can flow through the second lower flow channel 42; and the third lower flow channel 43 becomes coupled to the sixth lower threaded connector 26 and the first lower threaded connector 21 in such a way that coolant can flow through the third lower flow channel 43.

[0162] Therefore, the coolant line ⑧ of the outlet side of the second radiator 206 coupled to the second lower threaded connector 22 and the coolant line ⑨ of the battery component 213 coupled to the third lower threaded connector 23 are connected to each other through the first lower flow channel 41 in such a way that coolant can flow through the first lower flow channel 41. The coolant line ⑩ of the battery component 213 coupled to the fourth lower threaded connector 24 and the second inlet side coolant line of the water-cooled heat exchanger 305 coupled to the fifth lower threaded connector 25 are also connected to the first lower flow channel 41. They are interconnected via the second lower flow channel 42 in such a way that coolant can flow through the second lower flow channel 42. The coolant line is coupled to the second outlet side of the water-cooled heat exchanger 305 via the sixth threaded connector 26. The coolant line ⑦, which is coupled to the first threaded connector 21, and the inlet side coolant line 206 of the second radiator are connected to each other through the third flow channel 43.

[0163] Therefore, the battery section 213 is coupled to the second radiator 206 and the water-cooled heat exchanger 305 in a manner through which coolant can flow. The battery section 213 becomes a state in which it can be cooled by the coolant passing through the second radiator 206.

[0164] Therefore, if the lower hub 40 remains in the reference state, an integrated cooling mode can be performed on the battery section 213 of the existing cooling system.

[0165] like Figure 14As shown, if the lower hub 40 rotates 300° in the second direction relative to the reference state, the first lower flow channel 41 becomes coupled to the fourth lower threaded connector 24 and the fifth lower threaded connector 25 in such a way that coolant can flow through the first lower flow channel 41; the second lower flow channel 42 becomes coupled to the third lower threaded connector 23 and the sixth lower threaded connector 26 in such a way that coolant can flow through the second lower flow channel 42; and the third lower flow channel 43 becomes coupled to the first lower threaded connector 21 and the second lower threaded connector 22 in such a way that coolant can flow through the third lower flow channel 43.

[0166] Therefore, the coolant line ⑩ of the battery component 213 coupled to the fourth lower threaded connector 24 and the second inlet coolant line of the water-cooled heat exchanger 305 coupled to the fifth lower threaded connector 25 They are interconnected through the first lower flow channel 41 in such a way that coolant can flow through the first lower flow channel 41. The inlet-side coolant line ⑨ of the battery component 213 is coupled to the third lower threaded connector 23, and the second outlet-side coolant line of the water-cooled heat exchanger 305 is coupled to the sixth lower threaded connector 26. The coolant line ⑧ of the second radiator 206 coupled to the second threaded connector 22 and the coolant line ⑦ of the second radiator 206 coupled to the first threaded connector 21 are connected to each other through the third flow channel 43.

[0167] Therefore, the battery section 213 is separated from the second heat sink 206 and coupled to the water-cooled heat exchanger 305 in a manner that allows coolant to flow through the battery section 213 and the water-cooled heat exchanger 305. In this case, the battery section 213 cannot be cooled by the second heat sink 206. The water-cooled heat exchanger 305 can recover waste heat from the battery section 213 or heat the battery section 213 according to its operating mode.

[0168] Specifically, when the water-cooled heat exchanger 305 operates in evaporator mode, it can recover waste heat from the battery section 213 by exchanging heat with the refrigerant supplied by the air conditioning circuit 300. Furthermore, when the water-cooled heat exchanger 305 operates in condenser mode, it can heat the battery section 213 by supplying it with coolant whose temperature has been raised by the refrigerant from the air conditioning circuit 300.

[0169] As described above, if the lower hub 40 rotates 300° in the second direction, a mode that cannot be performed in the existing cooling system can be executed.

[0170] like Figure 15 As shown, if the lower hub 40 rotates 180° relative to the reference state in the second direction, the first lower flow channel 41 becomes coupled to the fifth lower threaded connector 25 and the first lower threaded connector 21 in such a way that coolant can flow through the first lower flow channel 41; the second lower flow channel 42 becomes coupled to the sixth lower threaded connector 26 and the second lower threaded connector 22 in such a way that coolant can flow through the second lower flow channel 42; and the third lower flow channel 43 becomes coupled to the third lower threaded connector 23 and the fourth lower threaded connector 24 in such a way that coolant can flow through the third lower flow channel 43.

[0171] Therefore, the second inlet side coolant line coupled to the fifth lower threaded joint 25 of the water-cooled heat exchanger 305 The inlet-side coolant line ⑦ of the second radiator 206, coupled to the first lower threaded connector 21, is connected to each other through the first lower flow channel 41 in such a way that coolant can flow through the first lower flow channel 41. The second outlet-side coolant line of the water-cooled heat exchanger 305, coupled to the sixth lower threaded connector 26... The coolant line ⑧, which is coupled to the outlet side of the second radiator 206 of the second lower threaded connector 22, is connected to each other through the second lower flow channel 42 in such a way that coolant can flow through the second lower flow channel 42. The coolant line ⑩, which is coupled to the outlet side of the battery section 213 of the fourth lower threaded connector 24, and the coolant line ⑨, which is coupled to the inlet side of the battery section 213 of the third lower threaded connector 23, are connected to each other through the third lower flow channel 43.

[0172] Furthermore, correspondingly, the battery section 213 is separated from the second radiator 206 and the water-cooled heat exchanger 305 in a manner that coolant cannot flow through, and is coupled only to the second radiator 206 and the water-cooled heat exchanger 305 in a manner that coolant can flow through.

[0173] In this configuration, when the temperature of the coolant rises due to heat generated spontaneously within the battery section 213, the battery section 213 can be heated by the increased temperature of the coolant, or by the coolant having a temperature raised by the coolant heater 202. Furthermore, the battery section 213 can be cooled by coolant cooled by the cooler 201. The cooler 201 is a component of the cooling system used to cool the coolant by exchanging heat with the refrigerant in the air conditioning circuit 300.

[0174] Furthermore, in this configuration, since the coolant cooled by the second radiator 206 does not cool the battery section 213, the water-cooled heat exchanger 305 can recover waste heat from the outside air through the coolant passing through the second radiator 206. That is, when operating in evaporator mode, the water-cooled heat exchanger 305 recovers heat from the outside air through the second radiator 206.

[0175] In addition, the water-cooled heat exchanger 305 can be cooled solely by the coolant cooled by the second radiator 206.

[0176] Therefore, if the lower hub 40 rotates 180° in the second direction, a separate cooling mode can be performed on the battery section 213 of the existing cooling system.

[0177] The upper hub 30 and the lower hub 40 can be rotated independently by the drive device 50. If a dual six-way valve of one form according to this disclosure is applied to a cooling system, various thermal management modes can be performed by individually controlling the rotation angles of the upper hub 30 and the lower hub 40, compared to existing cooling systems.

[0178] For example, if both the upper hub 30 and the lower hub 40 remain in the reference state, if the upper hub 30 remains in the reference state and the lower hub 40 rotates 180° or 300°, if the upper hub 30 rotates 60° and the lower hub 40 rotates 180° or 300°, and if the upper hub 30 rotates 180° and the lower hub 40 rotates 180° or 300°, then different cooling modes and different heating modes can be executed.

[0179] In addition, in order to more effectively cool the PE component 212, such as Figure 16 As shown, the upper hub 30 can rotate 345° relative to its reference state in a first direction, and the lower hub 40 can rotate 195° relative to its reference state in a second direction. In this case, as... Figures 16 to 18 As shown, the bottom 34b of the first upper flow channel 34 and the top 44a of the first lower flow channel 44 are coupled in such a way that coolant can flow through the first upper flow channel 34 and the first lower flow channel 44.

[0180] Furthermore, if the upper hub 30 rotates 345° and the lower hub 40 rotates 195°, the top 34a of the first upper flow channel 34 is coupled to the second upper threaded connector 12, and the bottom 44b of the first lower flow channel 44 is coupled to the first lower threaded connector 21.

[0181] Furthermore, when the bottom 34b of the first upper flow channel 34 and the top 44a of the first lower flow channel 44 are coupled, the bottom 35b of the second upper flow channel 35 and the top 45a of the second lower flow channel 45 are also coupled.

[0182] If the upper hub 30 rotates 345° and the lower hub 40 rotates 195°, the bottom 35b of the second upper flow channel 35 and the top 45a of the second lower flow channel 45 are coupled in such a way that coolant can flow through the second upper flow channel 35 and the second lower flow channel 45. The top 35a of the second upper flow channel 35 is coupled to the third upper threaded connector 13. The bottom 45b of the second lower flow channel 45 is coupled to the second lower threaded connector 22.

[0183] Therefore, the first radiator 107 and the second radiator 206 are coupled in such a way that coolant can flow through the first radiator 107 and the second radiator 206. The PE component 212 is coupled to the first radiator 107, the second radiator 206 and the water-cooled heat exchanger 305 in such a way that coolant can flow through it.

[0184] Therefore, the coolant passing through the first radiator 107 and the second radiator 206 flows into the water-cooled heat exchanger 305 via the PE component 212. Thus, the PE component 212 can be cooled simultaneously by the first radiator 107 and the second radiator 206. As a result, compared to the case where only the first radiator 107 is used to cool the PE component 212 in an existing cooling system, the PE component 212 can be cooled more concentratedly, and the cooling efficiency of the PE component 212 can be improved.

[0185] In addition, in order to more centrally cool the battery component 213, such as Figure 19 As shown, the upper hub 30 can rotate 45° in a first direction relative to its reference state, and the lower hub 40 can rotate 15° in a second direction relative to its reference state. In this case, as... Figures 19 to 21 As shown, the bottom 36b of the third upper flow channel 36 and the top 46a of the third lower flow channel 46 are coupled in such a way that coolant can flow through the third upper flow channel 36 and the third lower flow channel 46.

[0186] Furthermore, if the upper hub 30 rotates 45° and the lower hub 40 rotates 15°, the top 36a of the third upper flow channel 36 is coupled to the second upper threaded connector 12, and the bottom 46b of the third lower flow channel 46 is coupled to the first lower threaded connector 21.

[0187] Furthermore, when the bottom 36b of the third upper half flow channel 36 and the top of the third lower half flow channel 46 are coupled, the bottom 37b of the fourth upper half flow channel 37 and the top 47a of the fourth lower half flow channel 47 are also coupled.

[0188] If the upper hub 30 rotates 45° and the lower hub 40 rotates 15°, the bottom 37b of the fourth upper flow channel 37 and the top 47a of the fourth lower flow channel 47 are coupled in such a way that coolant can flow through the fourth upper flow channel 37 and the fourth lower flow channel 47. The top 37a of the fourth upper flow channel 37 is coupled to the first upper threaded connector 11. The bottom 47b of the fourth lower flow channel 47 is coupled to the sixth lower threaded connector 26.

[0189] Therefore, the first radiator 107 and the second radiator 206 are coupled in a manner that allows coolant to flow through. At the same time, the battery section 213 is coupled to the first radiator 107, the second radiator 206, and the water-cooled heat exchanger 305 in a manner that allows coolant to flow through.

[0190] Therefore, the coolant passing through the first radiator 107 and the second radiator 206 flows into the water-cooled heat exchanger 305 via the battery section 213. Thus, the battery section 213 can be cooled simultaneously by the first radiator 107 and the second radiator 206. As a result, compared to the case where only the second radiator 206 is used to cool the battery section 213 in a conventional cooling system, the battery section 213 can be cooled more concentratedly, and the cooling efficiency of the battery section 213 can be improved.

[0191] As described above, by applying a dual six-way valve of another form according to this disclosure to the cooling system of an electric vehicle, integrated cooling mode and separate cooling mode can be easily executed in addition to heat pump mode and battery heating mode, based on the operation of the dual six-way valve in the existing cooling system. Furthermore, various cooling and heating modes based on the rotation angle of the upper hub 30 and the lower hub 40 can also be executed.

[0192] This disclosure provides the following main effects through the aforementioned solutions.

[0193] First, the multiple three-way valves, bypass lines, and T-pipes used for coolant flow control in conventional technologies can be integrated and replaced by a single dual six-way valve. Therefore, compared to existing cooling systems, this results in a reduction in the number of components and assembly processes, weight reduction, and lower main costs. It also offers the advantages of simplified packaging construction and allows for smooth coolant flow control for target components such as PE components and battery components.

[0194] Secondly, the dual six-way valves can be used to execute more diverse cooling and heating modes in the cooling system. This allows for effective management of the electric vehicle's heat, resulting in improved curb weight.

[0195] Third, it can guide the coolant to flow only in the desired direction. Therefore, it can suppress or prevent phenomena such as coolant being introduced to another location in an existing T-pipe instead of flowing in the designated direction.

[0196] Although exemplary forms of this disclosure have been described in detail above, the terms and words used in this specification and claims should not be construed as limited to their ordinary or dictionary meanings. Furthermore, the exemplary forms described in this specification and the configurations shown in the drawings are merely exemplary forms of this disclosure. Therefore, the scope of this disclosure is not limited to the foregoing exemplary forms, and various modifications and improvements made by those skilled in the art using the basic concepts of this disclosure as defined in the appended claims are also included within the scope of this disclosure.

Claims

1. A dual six-way valve for a vehicle cooling system, the dual six-way valve comprising: The upper housing includes a plurality of threaded joints arranged at equal intervals on its outer circumferential surface, wherein the plurality of threaded joints are coupled to and supported by a first part of the cooling system; The lower housing is stacked below the upper housing and includes a plurality of threaded joints arranged at equal intervals on its outer circumferential surface, wherein the plurality of threaded joints are coupled to and supported by a second part of the cooling system; The upper hub is rotatably mounted within the upper housing; Multiple upper flow channels are independently disposed within the upper hub, and each upper flow channel is coupled to two upper threaded joints selected based on the rotation angle of the upper hub, such that coolant flows through each of the multiple upper flow channels. The lower hub is rotatably mounted inside the lower housing and stacked below the upper hub; Multiple lower flow channels are independently disposed within the lower hub, and each lower flow channel is coupled to two lower threaded joints selected based on the rotation angle of the lower hub, such that the coolant flows through each of the multiple lower flow channels; and The drive device is configured to rotate the upper hub and the lower hub. The first and second upper flow channels, which are independently formed, are disposed within the upper hub, and both extend from the outer circumferential surface of the upper hub to the bottom of the upper hub. Independently formed first and second lower flow channels are disposed within the lower hub, and both extend from the outer circumferential surface of the lower hub to the top of the lower hub. Based on the rotation angle of the upper and lower hubs, the bottom of the first upper flow channel and the top of the first lower flow channel are selectively coupled, allowing the coolant to flow through both the first upper and lower flow channels. Similarly, the bottom of the second upper flow channel and the top of the second lower flow channel are selectively coupled, allowing the coolant to flow through both the second upper and lower flow channels simultaneously. The tops of the first and second upper flow channels are respectively coupled to an upper threaded connector selected based on the rotation angle of the upper hub, among the plurality of upper threaded connectors, so that the coolant flows through the first and second upper flow channels, and The bottom of the first lower flow channel and the bottom of the second lower flow channel are respectively coupled to a threaded connector selected based on the rotation angle of the lower hub among the plurality of threaded connectors, so that the coolant flows through the first lower flow channel and the second lower flow channel.

2. The dual six-way valve according to claim 1, wherein, The plurality of upper flow channels include: A first upper flow channel is coupled to two upper threaded joints selected based on the rotation angle of the upper hub among the plurality of upper threaded joints, and is configured such that the two selected upper threaded joints can communicate with each other, allowing the coolant to flow through the first upper flow channel. A second upper flow channel is disposed at a predetermined distance from the first upper flow channel in the circumferential direction of the upper hub, coupled to two upper threaded joints selected based on the rotation angle of the upper hub, and configured such that the two selected upper threaded joints can communicate with each other, allowing the coolant to flow through the second upper flow channel; and The third upper flow channel is disposed at a predetermined distance from the second upper flow channel in the circumferential direction of the upper hub, coupled to the remaining two upper threaded joints among the plurality of upper threaded joints that are not coupled to the first upper flow channel and the second upper flow channel, and is configured such that the remaining two upper threaded joints can communicate with each other, so that the coolant flows through the third upper flow channel.

3. The dual six-way valve according to claim 1, wherein, The plurality of lower flow channels include: A first lower flow channel is coupled to two lower threaded joints selected based on the rotation angle of the lower hub among the plurality of lower threaded joints, and is configured such that the two selected lower threaded joints can communicate with each other, allowing the coolant to flow through the first lower flow channel. A second lower flow channel is disposed at a predetermined distance from the first lower flow channel in the circumferential direction of the lower hub, coupled to two lower threaded joints selected based on the rotation angle of the lower hub, and configured such that the two selected lower threaded joints can communicate with each other, allowing the coolant to flow through the second lower flow channel; and The third lower flow channel is disposed at a predetermined distance from the second lower flow channel in the circumferential direction of the lower hub, coupled to the remaining two lower threaded joints among the plurality of lower threaded joints that are not coupled to the first lower flow channel and the second lower flow channel, and is configured such that the remaining two lower threaded joints can communicate with each other, so that the coolant flows through the third lower flow channel.

4. The double six-way valve according to claim 1, wherein: The first of the plurality of threaded connectors is coupled to the inlet-side coolant line of the first radiator in the components of the cooling system, and The second of the plurality of threaded joints is coupled to the coolant line on the outlet side of the first radiator in the components of the cooling system.

5. The double six-way valve according to claim 4, wherein: The third threaded connector of the plurality of threaded connectors is coupled to the inlet-side coolant line of the power electronic PE component in the cooling system, and The fourth threaded connector of the plurality of threaded connectors is coupled to the coolant line on the outlet side of the PE component in the cooling system.

6. The dual six-way valve according to claim 5, wherein: The fifth threaded connector of the plurality of threaded joints is coupled to the first inlet-side coolant line of the water-cooled heat exchanger, which is coupled to the first radiator in the cooling system components. The sixth threaded connector of the plurality of threaded connectors is coupled to the coolant line on the first outlet side of the water-cooled heat exchanger, and the water-cooled heat exchanger is coupled to the first radiator in the components of the cooling system.

7. The double six-way valve according to claim 1, wherein: The first of the plurality of threaded connectors is coupled to the inlet-side coolant line of the second radiator in the components of the cooling system, and The second of the plurality of threaded joints is coupled to the coolant line on the outlet side of the second radiator in the components of the cooling system.

8. The double six-way valve according to claim 7, wherein: The third of the plurality of threaded connectors is coupled to the inlet-side coolant line of the battery component in the cooling system, and The fourth threaded connector of the plurality of threaded connectors is coupled to the coolant line on the outlet side of the battery component in the cooling system.

9. The dual six-way valve according to claim 8, wherein: The fifth threaded connector of the plurality of threaded joints is coupled to the second inlet-side coolant line of the water-cooled heat exchanger, which is coupled to the second radiator in the cooling system components. The sixth threaded connector of the plurality of threaded connectors is coupled to the coolant line on the second outlet side of the water-cooled heat exchanger, and the water-cooled heat exchanger is coupled to the second radiator in the components of the cooling system.

10. The dual six-way valve according to claim 2, wherein, When the rotation angle of the upper hub is zero degrees (0°) o )hour, The first upper flow channel is coupled to the second and third upper threaded connectors among the plurality of upper threaded connectors, allowing the coolant to flow through the first upper flow channel. The second upper flow channel is coupled to the fourth and fifth upper threaded joints of the plurality of upper threaded joints, such that the coolant flows through the second upper flow channel, and The third upper flow channel is coupled to the first and sixth upper threaded joints among the plurality of upper threaded joints, so that the coolant flows through the third upper flow channel.

11. The dual six-way valve according to claim 3, wherein, When the rotation angle of the lower hub is zero degrees (0 o )hour, The first lower flow channel is coupled to the second and third lower threaded joints among the plurality of lower threaded joints, allowing the coolant to flow through the first lower flow channel. The second lower flow channel is coupled to the fourth and fifth lower threaded joints among the plurality of lower threaded joints, allowing the coolant to flow through the second lower flow channel, and The third lower flow channel is coupled to the sixth lower threaded connector and the first lower threaded connector among the plurality of lower threaded connectors, so that the coolant flows through the third lower flow channel.

12. The dual six-way valve according to claim 10, wherein: The top of the first upper flow channel is coupled to a second threaded connector selected from the plurality of threaded connectors based on a predetermined rotation angle of the upper hub, such that the coolant flows through the first upper flow channel, and The top of the second upper flow channel is coupled to the third threaded connector, selected from the plurality of threaded connectors based on a predetermined rotation angle of the upper hub, so that the coolant flows through the second upper flow channel.

13. The dual six-way valve according to claim 12, wherein: The bottom of the first lower flow channel is coupled to a first threaded connector selected based on the rotation angle of the lower hub among the plurality of threaded connectors, so that the coolant flows through the first lower flow channel, and The bottom of the second lower flow channel is coupled to a second threaded connector selected based on the rotation angle of the lower hub among the plurality of threaded connectors, so that the coolant flows through the second lower flow channel.

14. The dual six-way valve according to claim 10, wherein: The independently formed third and fourth upper flow channels are disposed within the upper hub, and both extend from the outer circumferential surface of the upper hub to the bottom of the upper hub. The independently formed third and fourth lower flow channels are disposed within the lower hub, and both extend from the outer circumferential surface of the lower hub to the top of the lower hub. Based on the rotation angles of the upper and lower hubs, the bottom of the third upper flow channel and the top of the third lower flow channel are selectively coupled, allowing the coolant to flow through both the third upper and lower flow channels. Similarly, the bottom of the fourth upper flow channel and the top of the fourth lower flow channel are selectively coupled, allowing the coolant to flow through both the fourth upper and lower flow channels simultaneously. The tops of the third and fourth upper flow channels are respectively coupled to an upper threaded connector selected based on the rotation angle of the upper hub among the plurality of upper threaded connectors, so that the coolant flows through the third and fourth upper flow channels, and The bottom of the third lower flow channel and the bottom of the fourth lower flow channel are respectively coupled to the lower threaded joint selected based on the rotation angle of the lower hub among the plurality of lower threaded joints, so that the coolant flows through the third lower flow channel and the fourth lower flow channel.

15. The double six-way valve according to claim 14, wherein: The top of the third upper flow channel is coupled to a second upper threaded connector selected based on a predetermined rotation angle of the upper hub, among the plurality of upper threaded connectors, such that the coolant flows through the third upper flow channel, and The top of the fourth upper flow channel is coupled to the first upper threaded connector among the plurality of upper threaded connectors, selected based on the rotation angle of the upper hub, so that the coolant flows through the fourth upper flow channel.

16. The dual six-way valve according to claim 15, wherein: The bottom of the third lower flow channel is coupled to a first threaded connector among the plurality of threaded connectors, selected based on a predetermined rotation angle of the lower hub, such that the coolant flows through the third lower flow channel, and The bottom of the fourth lower flow channel is coupled to a fifth threaded connector among the plurality of threaded connectors, selected based on a predetermined rotation angle of the lower hub, so that the coolant flows through the fourth lower flow channel.

17. The dual six-way valve according to claim 1, wherein, The driving device includes: The motor is configured to rotate in a first direction and a second direction; A first ratchet is configured such that a first latching pawl and a first inclined surface are repeatedly formed on its outer circumferential surface in the circumferential direction, and is mounted on the shaft of the motor. The first spring clip is configured to have a first end mounted on the upper hub and a second end located in the first ramp in such a way as to lock onto the first latching claw; The second ratchet, configured with a second latching pawl and a second inclined surface repeatedly formed on its outer circumferential surface in the circumferential direction, is mounted on the shaft of the motor; and The second spring clip is configured to have a first end mounted on the lower hub and a second end located in the second ramp in a manner that locks onto the second latch pawl.

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